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authorGreg KH <greg@press.(none)>2005-10-28 10:13:16 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2005-10-28 10:13:16 -0700
commit6fbfddcb52d8d9fa2cd209f5ac2a1c87497d55b5 (patch)
treec0414e89678fcef7ce3493e048d855bde781ae8d /net
parent1a222bca26ca691e83be1b08f5e96ae96d0d8cae (diff)
parent27d1097d39509494706eaa2620ef3b1e780a3224 (diff)
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Merge ../bleed-2.6
Diffstat (limited to 'net')
-rw-r--r--net/core/neighbour.c5
-rw-r--r--net/core/pktgen.c506
-rw-r--r--net/core/skbuff.c2
-rw-r--r--net/core/sock.c2
-rw-r--r--net/dccp/output.c2
-rw-r--r--net/decnet/af_decnet.c13
-rw-r--r--net/ieee80211/Makefile3
-rw-r--r--net/ieee80211/ieee80211_crypt.c59
-rw-r--r--net/ieee80211/ieee80211_crypt_ccmp.c75
-rw-r--r--net/ieee80211/ieee80211_crypt_tkip.c150
-rw-r--r--net/ieee80211/ieee80211_crypt_wep.c26
-rw-r--r--net/ieee80211/ieee80211_geo.c141
-rw-r--r--net/ieee80211/ieee80211_module.c65
-rw-r--r--net/ieee80211/ieee80211_rx.c610
-rw-r--r--net/ieee80211/ieee80211_tx.c321
-rw-r--r--net/ieee80211/ieee80211_wx.c372
-rw-r--r--net/ipv4/devinet.c3
-rw-r--r--net/ipv4/fib_trie.c2
-rw-r--r--net/ipv4/icmp.c5
-rw-r--r--net/ipv4/ip_output.c5
-rw-r--r--net/ipv4/netfilter/ip_conntrack_core.c132
-rw-r--r--net/ipv4/proc.c4
-rw-r--r--net/ipv6/icmp.c9
-rw-r--r--net/ipv6/proc.c4
-rw-r--r--net/netlink/af_netlink.c5
-rw-r--r--net/rose/rose_route.c2
-rw-r--r--net/sctp/proc.c4
-rw-r--r--net/sunrpc/Makefile2
-rw-r--r--net/sunrpc/auth.c1
-rw-r--r--net/sunrpc/auth_gss/Makefile2
-rw-r--r--net/sunrpc/auth_gss/auth_gss.c187
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_crypto.c260
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_mech.c41
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_seal.c44
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_unseal.c39
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_wrap.c363
-rw-r--r--net/sunrpc/auth_gss/gss_mech_switch.c29
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_mech.c21
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_seal.c4
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_unseal.c2
-rw-r--r--net/sunrpc/auth_gss/svcauth_gss.c9
-rw-r--r--net/sunrpc/auth_null.c2
-rw-r--r--net/sunrpc/auth_unix.c2
-rw-r--r--net/sunrpc/clnt.c147
-rw-r--r--net/sunrpc/pmap_clnt.c12
-rw-r--r--net/sunrpc/rpc_pipe.c29
-rw-r--r--net/sunrpc/socklib.c175
-rw-r--r--net/sunrpc/sunrpc_syms.c1
-rw-r--r--net/sunrpc/svcsock.c3
-rw-r--r--net/sunrpc/sysctl.c32
-rw-r--r--net/sunrpc/xdr.c177
-rw-r--r--net/sunrpc/xprt.c1613
-rw-r--r--net/sunrpc/xprtsock.c1252
-rw-r--r--net/xfrm/xfrm_policy.c43
-rw-r--r--net/xfrm/xfrm_state.c6
55 files changed, 4583 insertions, 2442 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 1dcf7fa1f0f..e68700f950a 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1625,12 +1625,9 @@ static int neightbl_fill_info(struct neigh_table *tbl, struct sk_buff *skb,
memset(&ndst, 0, sizeof(ndst));
- for (cpu = 0; cpu < NR_CPUS; cpu++) {
+ for_each_cpu(cpu) {
struct neigh_statistics *st;
- if (!cpu_possible(cpu))
- continue;
-
st = per_cpu_ptr(tbl->stats, cpu);
ndst.ndts_allocs += st->allocs;
ndst.ndts_destroys += st->destroys;
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 5f043d34669..7fc3e9e28c3 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -75,7 +75,7 @@
* By design there should only be *one* "controlling" process. In practice
* multiple write accesses gives unpredictable result. Understood by "write"
* to /proc gives result code thats should be read be the "writer".
- * For pratical use this should be no problem.
+ * For practical use this should be no problem.
*
* Note when adding devices to a specific CPU there good idea to also assign
* /proc/irq/XX/smp_affinity so TX-interrupts gets bound to the same CPU.
@@ -96,7 +96,7 @@
* New xmit() return, do_div and misc clean up by Stephen Hemminger
* <shemminger@osdl.org> 040923
*
- * Rany Dunlap fixed u64 printk compiler waring
+ * Randy Dunlap fixed u64 printk compiler waring
*
* Remove FCS from BW calculation. Lennert Buytenhek <buytenh@wantstofly.org>
* New time handling. Lennert Buytenhek <buytenh@wantstofly.org> 041213
@@ -137,6 +137,7 @@
#include <linux/ipv6.h>
#include <linux/udp.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/wait.h>
#include <net/checksum.h>
#include <net/ipv6.h>
@@ -151,7 +152,7 @@
#include <asm/timex.h>
-#define VERSION "pktgen v2.62: Packet Generator for packet performance testing.\n"
+#define VERSION "pktgen v2.63: Packet Generator for packet performance testing.\n"
/* #define PG_DEBUG(a) a */
#define PG_DEBUG(a)
@@ -177,8 +178,8 @@
#define T_REMDEV (1<<3) /* Remove all devs */
/* Locks */
-#define thread_lock() spin_lock(&_thread_lock)
-#define thread_unlock() spin_unlock(&_thread_lock)
+#define thread_lock() down(&pktgen_sem)
+#define thread_unlock() up(&pktgen_sem)
/* If lock -- can be removed after some work */
#define if_lock(t) spin_lock(&(t->if_lock));
@@ -186,7 +187,9 @@
/* Used to help with determining the pkts on receive */
#define PKTGEN_MAGIC 0xbe9be955
-#define PG_PROC_DIR "net/pktgen"
+#define PG_PROC_DIR "pktgen"
+#define PGCTRL "pgctrl"
+static struct proc_dir_entry *pg_proc_dir = NULL;
#define MAX_CFLOWS 65536
@@ -202,11 +205,8 @@ struct pktgen_dev {
* Try to keep frequent/infrequent used vars. separated.
*/
- char ifname[32];
- struct proc_dir_entry *proc_ent;
+ char ifname[IFNAMSIZ];
char result[512];
- /* proc file names */
- char fname[80];
struct pktgen_thread* pg_thread; /* the owner */
struct pktgen_dev *next; /* Used for chaining in the thread's run-queue */
@@ -244,7 +244,7 @@ struct pktgen_dev {
__u32 seq_num;
int clone_skb; /* Use multiple SKBs during packet gen. If this number
- * is greater than 1, then that many coppies of the same
+ * is greater than 1, then that many copies of the same
* packet will be sent before a new packet is allocated.
* For instance, if you want to send 1024 identical packets
* before creating a new packet, set clone_skb to 1024.
@@ -330,8 +330,6 @@ struct pktgen_thread {
struct pktgen_dev *if_list; /* All device here */
struct pktgen_thread* next;
char name[32];
- char fname[128]; /* name of proc file */
- struct proc_dir_entry *proc_ent;
char result[512];
u32 max_before_softirq; /* We'll call do_softirq to prevent starvation. */
@@ -396,7 +394,7 @@ static inline s64 divremdi3(s64 x, s64 y, int type)
/* End of hacks to deal with 64-bit math on x86 */
-/** Convert to miliseconds */
+/** Convert to milliseconds */
static inline __u64 tv_to_ms(const struct timeval* tv)
{
__u64 ms = tv->tv_usec / 1000;
@@ -425,7 +423,7 @@ static inline __u64 pg_div64(__u64 n, __u64 base)
{
__u64 tmp = n;
/*
- * How do we know if the architectrure we are running on
+ * How do we know if the architecture we are running on
* supports division with 64 bit base?
*
*/
@@ -473,16 +471,6 @@ static inline __u64 tv_diff(const struct timeval* a, const struct timeval* b)
static char version[] __initdata = VERSION;
-static ssize_t proc_pgctrl_read(struct file* file, char __user * buf, size_t count, loff_t *ppos);
-static ssize_t proc_pgctrl_write(struct file* file, const char __user * buf, size_t count, loff_t *ppos);
-static int proc_if_read(char *buf , char **start, off_t offset, int len, int *eof, void *data);
-
-static int proc_thread_read(char *buf , char **start, off_t offset, int len, int *eof, void *data);
-static int proc_if_write(struct file *file, const char __user *user_buffer, unsigned long count, void *data);
-static int proc_thread_write(struct file *file, const char __user *user_buffer, unsigned long count, void *data);
-static int create_proc_dir(void);
-static int remove_proc_dir(void);
-
static int pktgen_remove_device(struct pktgen_thread* t, struct pktgen_dev *i);
static int pktgen_add_device(struct pktgen_thread* t, const char* ifname);
static struct pktgen_thread* pktgen_find_thread(const char* name);
@@ -503,83 +491,41 @@ static int pg_delay_d = 0;
static int pg_clone_skb_d = 0;
static int debug = 0;
-static DEFINE_SPINLOCK(_thread_lock);
+static DECLARE_MUTEX(pktgen_sem);
static struct pktgen_thread *pktgen_threads = NULL;
-static char module_fname[128];
-static struct proc_dir_entry *module_proc_ent = NULL;
-
static struct notifier_block pktgen_notifier_block = {
.notifier_call = pktgen_device_event,
};
-static struct file_operations pktgen_fops = {
- .read = proc_pgctrl_read,
- .write = proc_pgctrl_write,
- /* .ioctl = pktgen_ioctl, later maybe */
-};
-
/*
* /proc handling functions
*
*/
-static struct proc_dir_entry *pg_proc_dir = NULL;
-static int proc_pgctrl_read_eof=0;
-
-static ssize_t proc_pgctrl_read(struct file* file, char __user * buf,
- size_t count, loff_t *ppos)
+static int pgctrl_show(struct seq_file *seq, void *v)
{
- char data[200];
- int len = 0;
-
- if(proc_pgctrl_read_eof) {
- proc_pgctrl_read_eof=0;
- len = 0;
- goto out;
- }
-
- sprintf(data, "%s", VERSION);
-
- len = strlen(data);
-
- if(len > count) {
- len =-EFAULT;
- goto out;
- }
-
- if (copy_to_user(buf, data, len)) {
- len =-EFAULT;
- goto out;
- }
-
- *ppos += len;
- proc_pgctrl_read_eof=1; /* EOF next call */
-
- out:
- return len;
+ seq_puts(seq, VERSION);
+ return 0;
}
-static ssize_t proc_pgctrl_write(struct file* file,const char __user * buf,
- size_t count, loff_t *ppos)
+static ssize_t pgctrl_write(struct file* file,const char __user * buf,
+ size_t count, loff_t *ppos)
{
- char *data = NULL;
int err = 0;
+ char data[128];
if (!capable(CAP_NET_ADMIN)){
err = -EPERM;
goto out;
}
- data = (void*)vmalloc ((unsigned int)count);
+ if (count > sizeof(data))
+ count = sizeof(data);
- if(!data) {
- err = -ENOMEM;
- goto out;
- }
if (copy_from_user(data, buf, count)) {
- err =-EFAULT;
- goto out_free;
+ err = -EFAULT;
+ goto out;
}
data[count-1] = 0; /* Make string */
@@ -594,31 +540,40 @@ static ssize_t proc_pgctrl_write(struct file* file,const char __user * buf,
err = count;
- out_free:
- vfree (data);
out:
return err;
}
-static int proc_if_read(char *buf , char **start, off_t offset,
- int len, int *eof, void *data)
+static int pgctrl_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pgctrl_show, PDE(inode)->data);
+}
+
+static struct file_operations pktgen_fops = {
+ .owner = THIS_MODULE,
+ .open = pgctrl_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = pgctrl_write,
+ .release = single_release,
+};
+
+static int pktgen_if_show(struct seq_file *seq, void *v)
{
- char *p;
int i;
- struct pktgen_dev *pkt_dev = (struct pktgen_dev*)(data);
+ struct pktgen_dev *pkt_dev = seq->private;
__u64 sa;
__u64 stopped;
__u64 now = getCurUs();
- p = buf;
- p += sprintf(p, "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n",
- (unsigned long long) pkt_dev->count,
- pkt_dev->min_pkt_size, pkt_dev->max_pkt_size);
+ seq_printf(seq, "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n",
+ (unsigned long long) pkt_dev->count,
+ pkt_dev->min_pkt_size, pkt_dev->max_pkt_size);
- p += sprintf(p, " frags: %d delay: %u clone_skb: %d ifname: %s\n",
- pkt_dev->nfrags, 1000*pkt_dev->delay_us+pkt_dev->delay_ns, pkt_dev->clone_skb, pkt_dev->ifname);
+ seq_printf(seq, " frags: %d delay: %u clone_skb: %d ifname: %s\n",
+ pkt_dev->nfrags, 1000*pkt_dev->delay_us+pkt_dev->delay_ns, pkt_dev->clone_skb, pkt_dev->ifname);
- p += sprintf(p, " flows: %u flowlen: %u\n", pkt_dev->cflows, pkt_dev->lflow);
+ seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, pkt_dev->lflow);
if(pkt_dev->flags & F_IPV6) {
@@ -626,19 +581,19 @@ static int proc_if_read(char *buf , char **start, off_t offset,
fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr);
fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr);
fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr);
- p += sprintf(p, " saddr: %s min_saddr: %s max_saddr: %s\n", b1, b2, b3);
+ seq_printf(seq, " saddr: %s min_saddr: %s max_saddr: %s\n", b1, b2, b3);
fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr);
fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr);
fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr);
- p += sprintf(p, " daddr: %s min_daddr: %s max_daddr: %s\n", b1, b2, b3);
+ seq_printf(seq, " daddr: %s min_daddr: %s max_daddr: %s\n", b1, b2, b3);
}
else
- p += sprintf(p, " dst_min: %s dst_max: %s\n src_min: %s src_max: %s\n",
- pkt_dev->dst_min, pkt_dev->dst_max, pkt_dev->src_min, pkt_dev->src_max);
+ seq_printf(seq," dst_min: %s dst_max: %s\n src_min: %s src_max: %s\n",
+ pkt_dev->dst_min, pkt_dev->dst_max, pkt_dev->src_min, pkt_dev->src_max);
- p += sprintf(p, " src_mac: ");
+ seq_puts(seq, " src_mac: ");
if ((pkt_dev->src_mac[0] == 0) &&
(pkt_dev->src_mac[1] == 0) &&
@@ -648,89 +603,89 @@ static int proc_if_read(char *buf , char **start, off_t offset,
(pkt_dev->src_mac[5] == 0))
for (i = 0; i < 6; i++)
- p += sprintf(p, "%02X%s", pkt_dev->odev->dev_addr[i], i == 5 ? " " : ":");
+ seq_printf(seq, "%02X%s", pkt_dev->odev->dev_addr[i], i == 5 ? " " : ":");
else
for (i = 0; i < 6; i++)
- p += sprintf(p, "%02X%s", pkt_dev->src_mac[i], i == 5 ? " " : ":");
+ seq_printf(seq, "%02X%s", pkt_dev->src_mac[i], i == 5 ? " " : ":");
- p += sprintf(p, "dst_mac: ");
+ seq_printf(seq, "dst_mac: ");
for (i = 0; i < 6; i++)
- p += sprintf(p, "%02X%s", pkt_dev->dst_mac[i], i == 5 ? "\n" : ":");
+ seq_printf(seq, "%02X%s", pkt_dev->dst_mac[i], i == 5 ? "\n" : ":");
- p += sprintf(p, " udp_src_min: %d udp_src_max: %d udp_dst_min: %d udp_dst_max: %d\n",
- pkt_dev->udp_src_min, pkt_dev->udp_src_max, pkt_dev->udp_dst_min,
- pkt_dev->udp_dst_max);
+ seq_printf(seq, " udp_src_min: %d udp_src_max: %d udp_dst_min: %d udp_dst_max: %d\n",
+ pkt_dev->udp_src_min, pkt_dev->udp_src_max, pkt_dev->udp_dst_min,
+ pkt_dev->udp_dst_max);
- p += sprintf(p, " src_mac_count: %d dst_mac_count: %d \n Flags: ",
- pkt_dev->src_mac_count, pkt_dev->dst_mac_count);
+ seq_printf(seq, " src_mac_count: %d dst_mac_count: %d \n Flags: ",
+ pkt_dev->src_mac_count, pkt_dev->dst_mac_count);
if (pkt_dev->flags & F_IPV6)
- p += sprintf(p, "IPV6 ");
+ seq_printf(seq, "IPV6 ");
if (pkt_dev->flags & F_IPSRC_RND)
- p += sprintf(p, "IPSRC_RND ");
+ seq_printf(seq, "IPSRC_RND ");
if (pkt_dev->flags & F_IPDST_RND)
- p += sprintf(p, "IPDST_RND ");
+ seq_printf(seq, "IPDST_RND ");
if (pkt_dev->flags & F_TXSIZE_RND)
- p += sprintf(p, "TXSIZE_RND ");
+ seq_printf(seq, "TXSIZE_RND ");
if (pkt_dev->flags & F_UDPSRC_RND)
- p += sprintf(p, "UDPSRC_RND ");
+ seq_printf(seq, "UDPSRC_RND ");
if (pkt_dev->flags & F_UDPDST_RND)
- p += sprintf(p, "UDPDST_RND ");
+ seq_printf(seq, "UDPDST_RND ");
if (pkt_dev->flags & F_MACSRC_RND)
- p += sprintf(p, "MACSRC_RND ");
+ seq_printf(seq, "MACSRC_RND ");
if (pkt_dev->flags & F_MACDST_RND)
- p += sprintf(p, "MACDST_RND ");
+ seq_printf(seq, "MACDST_RND ");
- p += sprintf(p, "\n");
+ seq_puts(seq, "\n");
sa = pkt_dev->started_at;
stopped = pkt_dev->stopped_at;
if (pkt_dev->running)
stopped = now; /* not really stopped, more like last-running-at */
- p += sprintf(p, "Current:\n pkts-sofar: %llu errors: %llu\n started: %lluus stopped: %lluus idle: %lluus\n",
- (unsigned long long) pkt_dev->sofar,
- (unsigned long long) pkt_dev->errors,
- (unsigned long long) sa,
- (unsigned long long) stopped,
- (unsigned long long) pkt_dev->idle_acc);
+ seq_printf(seq, "Current:\n pkts-sofar: %llu errors: %llu\n started: %lluus stopped: %lluus idle: %lluus\n",
+ (unsigned long long) pkt_dev->sofar,
+ (unsigned long long) pkt_dev->errors,
+ (unsigned long long) sa,
+ (unsigned long long) stopped,
+ (unsigned long long) pkt_dev->idle_acc);
- p += sprintf(p, " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n",
- pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, pkt_dev->cur_src_mac_offset);
+ seq_printf(seq, " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n",
+ pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset,
+ pkt_dev->cur_src_mac_offset);
if(pkt_dev->flags & F_IPV6) {
char b1[128], b2[128];
fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr);
fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr);
- p += sprintf(p, " cur_saddr: %s cur_daddr: %s\n", b2, b1);
+ seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1);
}
else
- p += sprintf(p, " cur_saddr: 0x%x cur_daddr: 0x%x\n",
- pkt_dev->cur_saddr, pkt_dev->cur_daddr);
+ seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n",
+ pkt_dev->cur_saddr, pkt_dev->cur_daddr);
- p += sprintf(p, " cur_udp_dst: %d cur_udp_src: %d\n",
- pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src);
+ seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n",
+ pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src);
- p += sprintf(p, " flows: %u\n", pkt_dev->nflows);
+ seq_printf(seq, " flows: %u\n", pkt_dev->nflows);
if (pkt_dev->result[0])
- p += sprintf(p, "Result: %s\n", pkt_dev->result);
+ seq_printf(seq, "Result: %s\n", pkt_dev->result);
else
- p += sprintf(p, "Result: Idle\n");
- *eof = 1;
+ seq_printf(seq, "Result: Idle\n");
- return p - buf;
+ return 0;
}
@@ -802,13 +757,14 @@ done_str:
return i;
}
-static int proc_if_write(struct file *file, const char __user *user_buffer,
- unsigned long count, void *data)
+static ssize_t pktgen_if_write(struct file *file, const char __user *user_buffer,
+ size_t count, loff_t *offset)
{
+ struct seq_file *seq = (struct seq_file *) file->private_data;
+ struct pktgen_dev *pkt_dev = seq->private;
int i = 0, max, len;
char name[16], valstr[32];
unsigned long value = 0;
- struct pktgen_dev *pkt_dev = (struct pktgen_dev*)(data);
char* pg_result = NULL;
int tmp = 0;
char buf[128];
@@ -849,7 +805,8 @@ static int proc_if_write(struct file *file, const char __user *user_buffer,
if (copy_from_user(tb, user_buffer, count))
return -EFAULT;
tb[count] = 0;
- printk("pktgen: %s,%lu buffer -:%s:-\n", name, count, tb);
+ printk("pktgen: %s,%lu buffer -:%s:-\n", name,
+ (unsigned long) count, tb);
}
if (!strcmp(name, "min_pkt_size")) {
@@ -1335,92 +1292,98 @@ static int proc_if_write(struct file *file, const char __user *user_buffer,
return -EINVAL;
}
-static int proc_thread_read(char *buf , char **start, off_t offset,
- int len, int *eof, void *data)
+static int pktgen_if_open(struct inode *inode, struct file *file)
{
- char *p;
- struct pktgen_thread *t = (struct pktgen_thread*)(data);
- struct pktgen_dev *pkt_dev = NULL;
+ return single_open(file, pktgen_if_show, PDE(inode)->data);
+}
+static struct file_operations pktgen_if_fops = {
+ .owner = THIS_MODULE,
+ .open = pktgen_if_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = pktgen_if_write,
+ .release = single_release,
+};
- if (!t) {
- printk("pktgen: ERROR: could not find thread in proc_thread_read\n");
- return -EINVAL;
- }
+static int pktgen_thread_show(struct seq_file *seq, void *v)
+{
+ struct pktgen_thread *t = seq->private;
+ struct pktgen_dev *pkt_dev = NULL;
+
+ BUG_ON(!t);
- p = buf;
- p += sprintf(p, "Name: %s max_before_softirq: %d\n",
+ seq_printf(seq, "Name: %s max_before_softirq: %d\n",
t->name, t->max_before_softirq);
- p += sprintf(p, "Running: ");
+ seq_printf(seq, "Running: ");
if_lock(t);
for(pkt_dev = t->if_list;pkt_dev; pkt_dev = pkt_dev->next)
if(pkt_dev->running)
- p += sprintf(p, "%s ", pkt_dev->ifname);
+ seq_printf(seq, "%s ", pkt_dev->ifname);
- p += sprintf(p, "\nStopped: ");
+ seq_printf(seq, "\nStopped: ");
for(pkt_dev = t->if_list;pkt_dev; pkt_dev = pkt_dev->next)
if(!pkt_dev->running)
- p += sprintf(p, "%s ", pkt_dev->ifname);
+ seq_printf(seq, "%s ", pkt_dev->ifname);
if (t->result[0])
- p += sprintf(p, "\nResult: %s\n", t->result);
+ seq_printf(seq, "\nResult: %s\n", t->result);
else
- p += sprintf(p, "\nResult: NA\n");
-
- *eof = 1;
+ seq_printf(seq, "\nResult: NA\n");
if_unlock(t);
- return p - buf;
+ return 0;
}
-static int proc_thread_write(struct file *file, const char __user *user_buffer,
- unsigned long count, void *data)
+static ssize_t pktgen_thread_write(struct file *file,
+ const char __user *user_buffer,
+ size_t count, loff_t *offset)
{
+ struct seq_file *seq = (struct seq_file *) file->private_data;
+ struct pktgen_thread *t = seq->private;
int i = 0, max, len, ret;
char name[40];
- struct pktgen_thread *t;
char *pg_result;
unsigned long value = 0;
-
+
if (count < 1) {
// sprintf(pg_result, "Wrong command format");
return -EINVAL;
}
-
+
max = count - i;
len = count_trail_chars(&user_buffer[i], max);
- if (len < 0)
- return len;
-
+ if (len < 0)
+ return len;
+
i += len;
-
+
/* Read variable name */
len = strn_len(&user_buffer[i], sizeof(name) - 1);
- if (len < 0)
- return len;
+ if (len < 0)
+ return len;
memset(name, 0, sizeof(name));
if (copy_from_user(name, &user_buffer[i], len))
return -EFAULT;
i += len;
-
+
max = count -i;
len = count_trail_chars(&user_buffer[i], max);
- if (len < 0)
- return len;
-
+ if (len < 0)
+ return len;
+
i += len;
- if (debug)
- printk("pktgen: t=%s, count=%lu\n", name, count);
-
+ if (debug)
+ printk("pktgen: t=%s, count=%lu\n", name,
+ (unsigned long) count);
- t = (struct pktgen_thread*)(data);
if(!t) {
printk("pktgen: ERROR: No thread\n");
ret = -EINVAL;
@@ -1474,21 +1437,19 @@ static int proc_thread_write(struct file *file, const char __user *user_buffer,
return ret;
}
-static int create_proc_dir(void)
+static int pktgen_thread_open(struct inode *inode, struct file *file)
{
- pg_proc_dir = proc_mkdir(PG_PROC_DIR, NULL);
-
- if (!pg_proc_dir)
- return -ENODEV;
-
- return 0;
+ return single_open(file, pktgen_thread_show, PDE(inode)->data);
}
-static int remove_proc_dir(void)
-{
- remove_proc_entry(PG_PROC_DIR, NULL);
- return 0;
-}
+static struct file_operations pktgen_thread_fops = {
+ .owner = THIS_MODULE,
+ .open = pktgen_thread_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = pktgen_thread_write,
+ .release = single_release,
+};
/* Think find or remove for NN */
static struct pktgen_dev *__pktgen_NN_threads(const char* ifname, int remove)
@@ -1702,7 +1663,7 @@ static void spin(struct pktgen_dev *pkt_dev, __u64 spin_until_us)
start = now = getCurUs();
printk(KERN_INFO "sleeping for %d\n", (int)(spin_until_us - now));
while (now < spin_until_us) {
- /* TODO: optimise sleeping behavior */
+ /* TODO: optimize sleeping behavior */
if (spin_until_us - now > jiffies_to_usecs(1)+1)
schedule_timeout_interruptible(1);
else if (spin_until_us - now > 100) {
@@ -2361,7 +2322,7 @@ static void pktgen_stop_all_threads_ifs(void)
pktgen_stop(t);
t = t->next;
}
- thread_unlock();
+ thread_unlock();
}
static int thread_is_running(struct pktgen_thread *t )
@@ -2552,10 +2513,9 @@ static void pktgen_rem_thread(struct pktgen_thread *t)
struct pktgen_thread *tmp = pktgen_threads;
- if (strlen(t->fname))
- remove_proc_entry(t->fname, NULL);
+ remove_proc_entry(t->name, pg_proc_dir);
- thread_lock();
+ thread_lock();
if (tmp == t)
pktgen_threads = tmp->next;
@@ -2825,7 +2785,7 @@ static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, const char* i
if_lock(t);
for(pkt_dev=t->if_list; pkt_dev; pkt_dev = pkt_dev->next ) {
- if (strcmp(pkt_dev->ifname, ifname) == 0) {
+ if (strncmp(pkt_dev->ifname, ifname, IFNAMSIZ) == 0) {
break;
}
}
@@ -2864,74 +2824,70 @@ static int add_dev_to_thread(struct pktgen_thread *t, struct pktgen_dev *pkt_dev
static int pktgen_add_device(struct pktgen_thread *t, const char* ifname)
{
struct pktgen_dev *pkt_dev;
+ struct proc_dir_entry *pe;
/* We don't allow a device to be on several threads */
- if( (pkt_dev = __pktgen_NN_threads(ifname, FIND)) == NULL) {
-
- pkt_dev = kmalloc(sizeof(struct pktgen_dev), GFP_KERNEL);
- if (!pkt_dev)
- return -ENOMEM;
+ pkt_dev = __pktgen_NN_threads(ifname, FIND);
+ if (pkt_dev) {
+ printk("pktgen: ERROR: interface already used.\n");
+ return -EBUSY;
+ }
- memset(pkt_dev, 0, sizeof(struct pktgen_dev));
+ pkt_dev = kzalloc(sizeof(struct pktgen_dev), GFP_KERNEL);
+ if (!pkt_dev)
+ return -ENOMEM;
- pkt_dev->flows = vmalloc(MAX_CFLOWS*sizeof(struct flow_state));
- if (pkt_dev->flows == NULL) {
- kfree(pkt_dev);
- return -ENOMEM;
- }
- memset(pkt_dev->flows, 0, MAX_CFLOWS*sizeof(struct flow_state));
-
- pkt_dev->min_pkt_size = ETH_ZLEN;
- pkt_dev->max_pkt_size = ETH_ZLEN;
- pkt_dev->nfrags = 0;
- pkt_dev->clone_skb = pg_clone_skb_d;
- pkt_dev->delay_us = pg_delay_d / 1000;
- pkt_dev->delay_ns = pg_delay_d % 1000;
- pkt_dev->count = pg_count_d;
- pkt_dev->sofar = 0;
- pkt_dev->udp_src_min = 9; /* sink port */
- pkt_dev->udp_src_max = 9;
- pkt_dev->udp_dst_min = 9;
- pkt_dev->udp_dst_max = 9;
-
- strncpy(pkt_dev->ifname, ifname, 31);
- sprintf(pkt_dev->fname, "%s/%s", PG_PROC_DIR, ifname);
-
- if (! pktgen_setup_dev(pkt_dev)) {
- printk("pktgen: ERROR: pktgen_setup_dev failed.\n");
- if (pkt_dev->flows)
- vfree(pkt_dev->flows);
- kfree(pkt_dev);
- return -ENODEV;
- }
+ pkt_dev->flows = vmalloc(MAX_CFLOWS*sizeof(struct flow_state));
+ if (pkt_dev->flows == NULL) {
+ kfree(pkt_dev);
+ return -ENOMEM;
+ }
+ memset(pkt_dev->flows, 0, MAX_CFLOWS*sizeof(struct flow_state));
- pkt_dev->proc_ent = create_proc_entry(pkt_dev->fname, 0600, NULL);
- if (!pkt_dev->proc_ent) {
- printk("pktgen: cannot create %s procfs entry.\n", pkt_dev->fname);
- if (pkt_dev->flows)
- vfree(pkt_dev->flows);
- kfree(pkt_dev);
- return -EINVAL;
- }
- pkt_dev->proc_ent->read_proc = proc_if_read;
- pkt_dev->proc_ent->write_proc = proc_if_write;
- pkt_dev->proc_ent->data = (void*)(pkt_dev);
- pkt_dev->proc_ent->owner = THIS_MODULE;
+ pkt_dev->min_pkt_size = ETH_ZLEN;
+ pkt_dev->max_pkt_size = ETH_ZLEN;
+ pkt_dev->nfrags = 0;
+ pkt_dev->clone_skb = pg_clone_skb_d;
+ pkt_dev->delay_us = pg_delay_d / 1000;
+ pkt_dev->delay_ns = pg_delay_d % 1000;
+ pkt_dev->count = pg_count_d;
+ pkt_dev->sofar = 0;
+ pkt_dev->udp_src_min = 9; /* sink port */
+ pkt_dev->udp_src_max = 9;
+ pkt_dev->udp_dst_min = 9;
+ pkt_dev->udp_dst_max = 9;
+
+ strncpy(pkt_dev->ifname, ifname, IFNAMSIZ);
+
+ if (! pktgen_setup_dev(pkt_dev)) {
+ printk("pktgen: ERROR: pktgen_setup_dev failed.\n");
+ if (pkt_dev->flows)
+ vfree(pkt_dev->flows);
+ kfree(pkt_dev);
+ return -ENODEV;
+ }
+
+ pe = create_proc_entry(ifname, 0600, pg_proc_dir);
+ if (!pe) {
+ printk("pktgen: cannot create %s/%s procfs entry.\n",
+ PG_PROC_DIR, ifname);
+ if (pkt_dev->flows)
+ vfree(pkt_dev->flows);
+ kfree(pkt_dev);
+ return -EINVAL;
+ }
+ pe->proc_fops = &pktgen_if_fops;
+ pe->data = pkt_dev;
- return add_dev_to_thread(t, pkt_dev);
- }
- else {
- printk("pktgen: ERROR: interface already used.\n");
- return -EBUSY;
- }
+ return add_dev_to_thread(t, pkt_dev);
}
static struct pktgen_thread *pktgen_find_thread(const char* name)
{
struct pktgen_thread *t = NULL;
- thread_lock();
+ thread_lock();
t = pktgen_threads;
while (t) {
@@ -2947,6 +2903,7 @@ static struct pktgen_thread *pktgen_find_thread(const char* name)
static int pktgen_create_thread(const char* name, int cpu)
{
struct pktgen_thread *t = NULL;
+ struct proc_dir_entry *pe;
if (strlen(name) > 31) {
printk("pktgen: ERROR: Thread name cannot be more than 31 characters.\n");
@@ -2958,28 +2915,26 @@ static int pktgen_create_thread(const char* name, int cpu)
return -EINVAL;
}
- t = (struct pktgen_thread*)(kmalloc(sizeof(struct pktgen_thread), GFP_KERNEL));
+ t = kzalloc(sizeof(struct pktgen_thread), GFP_KERNEL);
if (!t) {
printk("pktgen: ERROR: out of memory, can't create new thread.\n");
return -ENOMEM;
}
- memset(t, 0, sizeof(struct pktgen_thread));
strcpy(t->name, name);
spin_lock_init(&t->if_lock);
t->cpu = cpu;
- sprintf(t->fname, "%s/%s", PG_PROC_DIR, t->name);
- t->proc_ent = create_proc_entry(t->fname, 0600, NULL);
- if (!t->proc_ent) {
- printk("pktgen: cannot create %s procfs entry.\n", t->fname);
+ pe = create_proc_entry(t->name, 0600, pg_proc_dir);
+ if (!pe) {
+ printk("pktgen: cannot create %s/%s procfs entry.\n",
+ PG_PROC_DIR, t->name);
kfree(t);
return -EINVAL;
}
- t->proc_ent->read_proc = proc_thread_read;
- t->proc_ent->write_proc = proc_thread_write;
- t->proc_ent->data = (void*)(t);
- t->proc_ent->owner = THIS_MODULE;
+
+ pe->proc_fops = &pktgen_thread_fops;
+ pe->data = t;
t->next = pktgen_threads;
pktgen_threads = t;
@@ -3034,8 +2989,7 @@ static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *pkt_
/* Clean up proc file system */
- if (strlen(pkt_dev->fname))
- remove_proc_entry(pkt_dev->fname, NULL);
+ remove_proc_entry(pkt_dev->ifname, pg_proc_dir);
if (pkt_dev->flows)
vfree(pkt_dev->flows);
@@ -3046,31 +3000,31 @@ static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *pkt_
static int __init pg_init(void)
{
int cpu;
- printk(version);
+ struct proc_dir_entry *pe;
- module_fname[0] = 0;
+ printk(version);
- create_proc_dir();
+ pg_proc_dir = proc_mkdir(PG_PROC_DIR, proc_net);
+ if (!pg_proc_dir)
+ return -ENODEV;
+ pg_proc_dir->owner = THIS_MODULE;
- sprintf(module_fname, "%s/pgctrl", PG_PROC_DIR);
- module_proc_ent = create_proc_entry(module_fname, 0600, NULL);
- if (!module_proc_ent) {
- printk("pktgen: ERROR: cannot create %s procfs entry.\n", module_fname);
+ pe = create_proc_entry(PGCTRL, 0600, pg_proc_dir);
+ if (pe == NULL) {
+ printk("pktgen: ERROR: cannot create %s procfs entry.\n", PGCTRL);
+ proc_net_remove(PG_PROC_DIR);
return -EINVAL;
}
- module_proc_ent->proc_fops = &pktgen_fops;
- module_proc_ent->data = NULL;
+ pe->proc_fops = &pktgen_fops;
+ pe->data = NULL;
/* Register us to receive netdevice events */
register_netdevice_notifier(&pktgen_notifier_block);
- for (cpu = 0; cpu < NR_CPUS ; cpu++) {
+ for_each_online_cpu(cpu) {
char buf[30];
- if (!cpu_online(cpu))
- continue;
-
sprintf(buf, "kpktgend_%i", cpu);
pktgen_create_thread(buf, cpu);
}
@@ -3095,10 +3049,8 @@ static void __exit pg_cleanup(void)
unregister_netdevice_notifier(&pktgen_notifier_block);
/* Clean up proc file system */
-
- remove_proc_entry(module_fname, NULL);
-
- remove_proc_dir();
+ remove_proc_entry(PGCTRL, pg_proc_dir);
+ proc_net_remove(PG_PROC_DIR);
}
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 02cd4cde211..ef9d46b91eb 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -122,6 +122,8 @@ void skb_under_panic(struct sk_buff *skb, int sz, void *here)
* __alloc_skb - allocate a network buffer
* @size: size to allocate
* @gfp_mask: allocation mask
+ * @fclone: allocate from fclone cache instead of head cache
+ * and allocate a cloned (child) skb
*
* Allocate a new &sk_buff. The returned buffer has no headroom and a
* tail room of size bytes. The object has a reference count of one.
diff --git a/net/core/sock.c b/net/core/sock.c
index 1c52fe809ed..9602ceb3bac 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -940,7 +940,7 @@ static struct sk_buff *sock_alloc_send_pskb(struct sock *sk,
int noblock, int *errcode)
{
struct sk_buff *skb;
- unsigned int gfp_mask;
+ gfp_t gfp_mask;
long timeo;
int err;
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 29250749f16..d59f86f7cea 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -495,7 +495,7 @@ void dccp_send_close(struct sock *sk, const int active)
{
struct dccp_sock *dp = dccp_sk(sk);
struct sk_buff *skb;
- const unsigned int prio = active ? GFP_KERNEL : GFP_ATOMIC;
+ const gfp_t prio = active ? GFP_KERNEL : GFP_ATOMIC;
skb = alloc_skb(sk->sk_prot->max_header, prio);
if (skb == NULL)
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 1186dc44cdf..3f25cadccdd 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -719,22 +719,9 @@ static int dn_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
if (saddr->sdn_flags & ~SDF_WILD)
return -EINVAL;
-#if 1
if (!capable(CAP_NET_BIND_SERVICE) && (saddr->sdn_objnum ||
(saddr->sdn_flags & SDF_WILD)))
return -EACCES;
-#else
- /*
- * Maybe put the default actions in the default security ops for
- * dn_prot_sock ? Would be nice if the capable call would go there
- * too.
- */
- if (security_dn_prot_sock(saddr) &&
- !capable(CAP_NET_BIND_SERVICE) ||
- saddr->sdn_objnum || (saddr->sdn_flags & SDF_WILD))
- return -EACCES;
-#endif
-
if (!(saddr->sdn_flags & SDF_WILD)) {
if (dn_ntohs(saddr->sdn_nodeaddrl)) {
diff --git a/net/ieee80211/Makefile b/net/ieee80211/Makefile
index a6ccac5baea..f988417121d 100644
--- a/net/ieee80211/Makefile
+++ b/net/ieee80211/Makefile
@@ -7,5 +7,6 @@ ieee80211-objs := \
ieee80211_module.o \
ieee80211_tx.o \
ieee80211_rx.o \
- ieee80211_wx.o
+ ieee80211_wx.o \
+ ieee80211_geo.o
diff --git a/net/ieee80211/ieee80211_crypt.c b/net/ieee80211/ieee80211_crypt.c
index 61a9d92e455..f3b6aa3be63 100644
--- a/net/ieee80211/ieee80211_crypt.c
+++ b/net/ieee80211/ieee80211_crypt.c
@@ -41,6 +41,12 @@ void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, int force)
{
struct list_head *ptr, *n;
struct ieee80211_crypt_data *entry;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+
+ if (list_empty(&ieee->crypt_deinit_list))
+ goto unlock;
for (ptr = ieee->crypt_deinit_list.next, n = ptr->next;
ptr != &ieee->crypt_deinit_list; ptr = n, n = ptr->next) {
@@ -57,6 +63,18 @@ void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, int force)
}
kfree(entry);
}
+ unlock:
+ spin_unlock_irqrestore(&ieee->lock, flags);
+}
+
+/* After this, crypt_deinit_list won't accept new members */
+void ieee80211_crypt_quiescing(struct ieee80211_device *ieee)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+ ieee->crypt_quiesced = 1;
+ spin_unlock_irqrestore(&ieee->lock, flags);
}
void ieee80211_crypt_deinit_handler(unsigned long data)
@@ -64,16 +82,16 @@ void ieee80211_crypt_deinit_handler(unsigned long data)
struct ieee80211_device *ieee = (struct ieee80211_device *)data;
unsigned long flags;
- spin_lock_irqsave(&ieee->lock, flags);
ieee80211_crypt_deinit_entries(ieee, 0);
- if (!list_empty(&ieee->crypt_deinit_list)) {
+
+ spin_lock_irqsave(&ieee->lock, flags);
+ if (!list_empty(&ieee->crypt_deinit_list) && !ieee->crypt_quiesced) {
printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
"deletion list\n", ieee->dev->name);
ieee->crypt_deinit_timer.expires = jiffies + HZ;
add_timer(&ieee->crypt_deinit_timer);
}
spin_unlock_irqrestore(&ieee->lock, flags);
-
}
void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
@@ -93,10 +111,12 @@ void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
* locking. */
spin_lock_irqsave(&ieee->lock, flags);
- list_add(&tmp->list, &ieee->crypt_deinit_list);
- if (!timer_pending(&ieee->crypt_deinit_timer)) {
- ieee->crypt_deinit_timer.expires = jiffies + HZ;
- add_timer(&ieee->crypt_deinit_timer);
+ if (!ieee->crypt_quiesced) {
+ list_add(&tmp->list, &ieee->crypt_deinit_list);
+ if (!timer_pending(&ieee->crypt_deinit_timer)) {
+ ieee->crypt_deinit_timer.expires = jiffies + HZ;
+ add_timer(&ieee->crypt_deinit_timer);
+ }
}
spin_unlock_irqrestore(&ieee->lock, flags);
}
@@ -191,18 +211,18 @@ static void ieee80211_crypt_null_deinit(void *priv)
}
static struct ieee80211_crypto_ops ieee80211_crypt_null = {
- .name = "NULL",
- .init = ieee80211_crypt_null_init,
- .deinit = ieee80211_crypt_null_deinit,
- .encrypt_mpdu = NULL,
- .decrypt_mpdu = NULL,
- .encrypt_msdu = NULL,
- .decrypt_msdu = NULL,
- .set_key = NULL,
- .get_key = NULL,
- .extra_prefix_len = 0,
- .extra_postfix_len = 0,
- .owner = THIS_MODULE,
+ .name = "NULL",
+ .init = ieee80211_crypt_null_init,
+ .deinit = ieee80211_crypt_null_deinit,
+ .encrypt_mpdu = NULL,
+ .decrypt_mpdu = NULL,
+ .encrypt_msdu = NULL,
+ .decrypt_msdu = NULL,
+ .set_key = NULL,
+ .get_key = NULL,
+ .extra_mpdu_prefix_len = 0,
+ .extra_mpdu_postfix_len = 0,
+ .owner = THIS_MODULE,
};
static int __init ieee80211_crypto_init(void)
@@ -249,6 +269,7 @@ static void __exit ieee80211_crypto_deinit(void)
EXPORT_SYMBOL(ieee80211_crypt_deinit_entries);
EXPORT_SYMBOL(ieee80211_crypt_deinit_handler);
EXPORT_SYMBOL(ieee80211_crypt_delayed_deinit);
+EXPORT_SYMBOL(ieee80211_crypt_quiescing);
EXPORT_SYMBOL(ieee80211_register_crypto_ops);
EXPORT_SYMBOL(ieee80211_unregister_crypto_ops);
diff --git a/net/ieee80211/ieee80211_crypt_ccmp.c b/net/ieee80211/ieee80211_crypt_ccmp.c
index 8fc13f45971..05a853c1301 100644
--- a/net/ieee80211/ieee80211_crypt_ccmp.c
+++ b/net/ieee80211/ieee80211_crypt_ccmp.c
@@ -119,7 +119,7 @@ static inline void xor_block(u8 * b, u8 * a, size_t len)
}
static void ccmp_init_blocks(struct crypto_tfm *tfm,
- struct ieee80211_hdr *hdr,
+ struct ieee80211_hdr_4addr *hdr,
u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0)
{
u8 *pos, qc = 0;
@@ -191,26 +191,18 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm,
ieee80211_ccmp_aes_encrypt(tfm, b0, s0);
}
-static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static int ieee80211_ccmp_hdr(struct sk_buff *skb, int hdr_len, void *priv)
{
struct ieee80211_ccmp_data *key = priv;
- int data_len, i, blocks, last, len;
- u8 *pos, *mic;
- struct ieee80211_hdr *hdr;
- u8 *b0 = key->tx_b0;
- u8 *b = key->tx_b;
- u8 *e = key->tx_e;
- u8 *s0 = key->tx_s0;
+ int i;
+ u8 *pos;
- if (skb_headroom(skb) < CCMP_HDR_LEN ||
- skb_tailroom(skb) < CCMP_MIC_LEN || skb->len < hdr_len)
+ if (skb_headroom(skb) < CCMP_HDR_LEN || skb->len < hdr_len)
return -1;
- data_len = skb->len - hdr_len;
pos = skb_push(skb, CCMP_HDR_LEN);
memmove(pos, pos + CCMP_HDR_LEN, hdr_len);
pos += hdr_len;
- mic = skb_put(skb, CCMP_MIC_LEN);
i = CCMP_PN_LEN - 1;
while (i >= 0) {
@@ -229,7 +221,31 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
*pos++ = key->tx_pn[1];
*pos++ = key->tx_pn[0];
- hdr = (struct ieee80211_hdr *)skb->data;
+ return CCMP_HDR_LEN;
+}
+
+static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+{
+ struct ieee80211_ccmp_data *key = priv;
+ int data_len, i, blocks, last, len;
+ u8 *pos, *mic;
+ struct ieee80211_hdr_4addr *hdr;
+ u8 *b0 = key->tx_b0;
+ u8 *b = key->tx_b;
+ u8 *e = key->tx_e;
+ u8 *s0 = key->tx_s0;
+
+ if (skb_tailroom(skb) < CCMP_MIC_LEN || skb->len < hdr_len)
+ return -1;
+
+ data_len = skb->len - hdr_len;
+ len = ieee80211_ccmp_hdr(skb, hdr_len, priv);
+ if (len < 0)
+ return -1;
+
+ pos = skb->data + hdr_len + CCMP_HDR_LEN;
+ mic = skb_put(skb, CCMP_MIC_LEN);
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0);
blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
@@ -258,7 +274,7 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
{
struct ieee80211_ccmp_data *key = priv;
u8 keyidx, *pos;
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr_4addr *hdr;
u8 *b0 = key->rx_b0;
u8 *b = key->rx_b;
u8 *a = key->rx_a;
@@ -272,7 +288,7 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
return -1;
}
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
pos = skb->data + hdr_len;
keyidx = pos[3];
if (!(keyidx & (1 << 5))) {
@@ -426,19 +442,20 @@ static char *ieee80211_ccmp_print_stats(char *p, void *priv)
}
static struct ieee80211_crypto_ops ieee80211_crypt_ccmp = {
- .name = "CCMP",
- .init = ieee80211_ccmp_init,
- .deinit = ieee80211_ccmp_deinit,
- .encrypt_mpdu = ieee80211_ccmp_encrypt,
- .decrypt_mpdu = ieee80211_ccmp_decrypt,
- .encrypt_msdu = NULL,
- .decrypt_msdu = NULL,
- .set_key = ieee80211_ccmp_set_key,
- .get_key = ieee80211_ccmp_get_key,
- .print_stats = ieee80211_ccmp_print_stats,
- .extra_prefix_len = CCMP_HDR_LEN,
- .extra_postfix_len = CCMP_MIC_LEN,
- .owner = THIS_MODULE,
+ .name = "CCMP",
+ .init = ieee80211_ccmp_init,
+ .deinit = ieee80211_ccmp_deinit,
+ .build_iv = ieee80211_ccmp_hdr,
+ .encrypt_mpdu = ieee80211_ccmp_encrypt,
+ .decrypt_mpdu = ieee80211_ccmp_decrypt,
+ .encrypt_msdu = NULL,
+ .decrypt_msdu = NULL,
+ .set_key = ieee80211_ccmp_set_key,
+ .get_key = ieee80211_ccmp_get_key,
+ .print_stats = ieee80211_ccmp_print_stats,
+ .extra_mpdu_prefix_len = CCMP_HDR_LEN,
+ .extra_mpdu_postfix_len = CCMP_MIC_LEN,
+ .owner = THIS_MODULE,
};
static int __init ieee80211_crypto_ccmp_init(void)
diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c
index d4f9164be1a..2e34f29b795 100644
--- a/net/ieee80211/ieee80211_crypt_tkip.c
+++ b/net/ieee80211/ieee80211_crypt_tkip.c
@@ -59,8 +59,24 @@ struct ieee80211_tkip_data {
/* scratch buffers for virt_to_page() (crypto API) */
u8 rx_hdr[16], tx_hdr[16];
+
+ unsigned long flags;
};
+static unsigned long ieee80211_tkip_set_flags(unsigned long flags, void *priv)
+{
+ struct ieee80211_tkip_data *_priv = priv;
+ unsigned long old_flags = _priv->flags;
+ _priv->flags = flags;
+ return old_flags;
+}
+
+static unsigned long ieee80211_tkip_get_flags(void *priv)
+{
+ struct ieee80211_tkip_data *_priv = priv;
+ return _priv->flags;
+}
+
static void *ieee80211_tkip_init(int key_idx)
{
struct ieee80211_tkip_data *priv;
@@ -69,6 +85,7 @@ static void *ieee80211_tkip_init(int key_idx)
if (priv == NULL)
goto fail;
memset(priv, 0, sizeof(*priv));
+
priv->key_idx = key_idx;
priv->tfm_arc4 = crypto_alloc_tfm("arc4", 0);
@@ -255,25 +272,27 @@ static void tkip_mixing_phase2(u8 * WEPSeed, const u8 * TK, const u16 * TTAK,
#endif
}
-static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static u8 *ieee80211_tkip_hdr(struct sk_buff *skb, int hdr_len, void *priv)
{
struct ieee80211_tkip_data *tkey = priv;
int len;
- u8 rc4key[16], *pos, *icv;
- struct ieee80211_hdr *hdr;
+ u8 *rc4key, *pos, *icv;
+ struct ieee80211_hdr_4addr *hdr;
u32 crc;
- struct scatterlist sg;
- if (skb_headroom(skb) < 8 || skb_tailroom(skb) < 4 ||
- skb->len < hdr_len)
- return -1;
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
+
+ if (skb_headroom(skb) < 8 || skb->len < hdr_len)
+ return NULL;
- hdr = (struct ieee80211_hdr *)skb->data;
if (!tkey->tx_phase1_done) {
tkip_mixing_phase1(tkey->tx_ttak, tkey->key, hdr->addr2,
tkey->tx_iv32);
tkey->tx_phase1_done = 1;
}
+ rc4key = kmalloc(16, GFP_ATOMIC);
+ if (!rc4key)
+ return NULL;
tkip_mixing_phase2(rc4key, tkey->key, tkey->tx_ttak, tkey->tx_iv16);
len = skb->len - hdr_len;
@@ -282,9 +301,9 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
pos += hdr_len;
icv = skb_put(skb, 4);
- *pos++ = rc4key[0];
- *pos++ = rc4key[1];
- *pos++ = rc4key[2];
+ *pos++ = *rc4key;
+ *pos++ = *(rc4key + 1);
+ *pos++ = *(rc4key + 2);
*pos++ = (tkey->key_idx << 6) | (1 << 5) /* Ext IV included */ ;
*pos++ = tkey->tx_iv32 & 0xff;
*pos++ = (tkey->tx_iv32 >> 8) & 0xff;
@@ -297,6 +316,38 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
icv[2] = crc >> 16;
icv[3] = crc >> 24;
+ return rc4key;
+}
+
+static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+{
+ struct ieee80211_tkip_data *tkey = priv;
+ int len;
+ const u8 *rc4key;
+ u8 *pos;
+ struct scatterlist sg;
+
+ if (tkey->flags & IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) {
+ if (net_ratelimit()) {
+ struct ieee80211_hdr_4addr *hdr =
+ (struct ieee80211_hdr_4addr *)skb->data;
+ printk(KERN_DEBUG "TKIP countermeasures: dropped "
+ "TX packet to " MAC_FMT "\n",
+ MAC_ARG(hdr->addr1));
+ }
+ return -1;
+ }
+
+ if (skb_tailroom(skb) < 4 || skb->len < hdr_len)
+ return -1;
+
+ len = skb->len - hdr_len;
+ pos = skb->data + hdr_len;
+
+ rc4key = ieee80211_tkip_hdr(skb, hdr_len, priv);
+ if (!rc4key)
+ return -1;
+
crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
sg.page = virt_to_page(pos);
sg.offset = offset_in_page(pos);
@@ -319,16 +370,26 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
u8 keyidx, *pos;
u32 iv32;
u16 iv16;
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr_4addr *hdr;
u8 icv[4];
u32 crc;
struct scatterlist sg;
int plen;
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
+
+ if (tkey->flags & IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "TKIP countermeasures: dropped "
+ "received packet from " MAC_FMT "\n",
+ MAC_ARG(hdr->addr2));
+ }
+ return -1;
+ }
+
if (skb->len < hdr_len + 8 + 4)
return -1;
- hdr = (struct ieee80211_hdr *)skb->data;
pos = skb->data + hdr_len;
keyidx = pos[3];
if (!(keyidx & (1 << 5))) {
@@ -441,9 +502,9 @@ static int michael_mic(struct ieee80211_tkip_data *tkey, u8 * key, u8 * hdr,
static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr)
{
- struct ieee80211_hdr *hdr11;
+ struct ieee80211_hdr_4addr *hdr11;
- hdr11 = (struct ieee80211_hdr *)skb->data;
+ hdr11 = (struct ieee80211_hdr_4addr *)skb->data;
switch (le16_to_cpu(hdr11->frame_ctl) &
(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
case IEEE80211_FCTL_TODS:
@@ -490,9 +551,9 @@ static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len,
return 0;
}
-#if WIRELESS_EXT >= 18
static void ieee80211_michael_mic_failure(struct net_device *dev,
- struct ieee80211_hdr *hdr, int keyidx)
+ struct ieee80211_hdr_4addr *hdr,
+ int keyidx)
{
union iwreq_data wrqu;
struct iw_michaelmicfailure ev;
@@ -510,28 +571,6 @@ static void ieee80211_michael_mic_failure(struct net_device *dev,
wrqu.data.length = sizeof(ev);
wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
}
-#elif WIRELESS_EXT >= 15
-static void ieee80211_michael_mic_failure(struct net_device *dev,
- struct ieee80211_hdr *hdr, int keyidx)
-{
- union iwreq_data wrqu;
- char buf[128];
-
- /* TODO: needed parameters: count, keyid, key type, TSC */
- sprintf(buf, "MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr="
- MAC_FMT ")", keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
- MAC_ARG(hdr->addr2));
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = strlen(buf);
- wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
-}
-#else /* WIRELESS_EXT >= 15 */
-static inline void ieee80211_michael_mic_failure(struct net_device *dev,
- struct ieee80211_hdr *hdr,
- int keyidx)
-{
-}
-#endif /* WIRELESS_EXT >= 15 */
static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
int hdr_len, void *priv)
@@ -547,8 +586,8 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
return -1;
if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) {
- struct ieee80211_hdr *hdr;
- hdr = (struct ieee80211_hdr *)skb->data;
+ struct ieee80211_hdr_4addr *hdr;
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
printk(KERN_DEBUG "%s: Michael MIC verification failed for "
"MSDU from " MAC_FMT " keyidx=%d\n",
skb->dev ? skb->dev->name : "N/A", MAC_ARG(hdr->addr2),
@@ -654,19 +693,22 @@ static char *ieee80211_tkip_print_stats(char *p, void *priv)
}
static struct ieee80211_crypto_ops ieee80211_crypt_tkip = {
- .name = "TKIP",
- .init = ieee80211_tkip_init,
- .deinit = ieee80211_tkip_deinit,
- .encrypt_mpdu = ieee80211_tkip_encrypt,
- .decrypt_mpdu = ieee80211_tkip_decrypt,
- .encrypt_msdu = ieee80211_michael_mic_add,
- .decrypt_msdu = ieee80211_michael_mic_verify,
- .set_key = ieee80211_tkip_set_key,
- .get_key = ieee80211_tkip_get_key,
- .print_stats = ieee80211_tkip_print_stats,
- .extra_prefix_len = 4 + 4, /* IV + ExtIV */
- .extra_postfix_len = 8 + 4, /* MIC + ICV */
- .owner = THIS_MODULE,
+ .name = "TKIP",
+ .init = ieee80211_tkip_init,
+ .deinit = ieee80211_tkip_deinit,
+ .encrypt_mpdu = ieee80211_tkip_encrypt,
+ .decrypt_mpdu = ieee80211_tkip_decrypt,
+ .encrypt_msdu = ieee80211_michael_mic_add,
+ .decrypt_msdu = ieee80211_michael_mic_verify,
+ .set_key = ieee80211_tkip_set_key,
+ .get_key = ieee80211_tkip_get_key,
+ .print_stats = ieee80211_tkip_print_stats,
+ .extra_mpdu_prefix_len = 4 + 4, /* IV + ExtIV */
+ .extra_mpdu_postfix_len = 4, /* ICV */
+ .extra_msdu_postfix_len = 8, /* MIC */
+ .get_flags = ieee80211_tkip_get_flags,
+ .set_flags = ieee80211_tkip_set_flags,
+ .owner = THIS_MODULE,
};
static int __init ieee80211_crypto_tkip_init(void)
diff --git a/net/ieee80211/ieee80211_crypt_wep.c b/net/ieee80211/ieee80211_crypt_wep.c
index b4d2514a090..7c08ed2f262 100644
--- a/net/ieee80211/ieee80211_crypt_wep.c
+++ b/net/ieee80211/ieee80211_crypt_wep.c
@@ -229,19 +229,19 @@ static char *prism2_wep_print_stats(char *p, void *priv)
}
static struct ieee80211_crypto_ops ieee80211_crypt_wep = {
- .name = "WEP",
- .init = prism2_wep_init,
- .deinit = prism2_wep_deinit,
- .encrypt_mpdu = prism2_wep_encrypt,
- .decrypt_mpdu = prism2_wep_decrypt,
- .encrypt_msdu = NULL,
- .decrypt_msdu = NULL,
- .set_key = prism2_wep_set_key,
- .get_key = prism2_wep_get_key,
- .print_stats = prism2_wep_print_stats,
- .extra_prefix_len = 4, /* IV */
- .extra_postfix_len = 4, /* ICV */
- .owner = THIS_MODULE,
+ .name = "WEP",
+ .init = prism2_wep_init,
+ .deinit = prism2_wep_deinit,
+ .encrypt_mpdu = prism2_wep_encrypt,
+ .decrypt_mpdu = prism2_wep_decrypt,
+ .encrypt_msdu = NULL,
+ .decrypt_msdu = NULL,
+ .set_key = prism2_wep_set_key,
+ .get_key = prism2_wep_get_key,
+ .print_stats = prism2_wep_print_stats,
+ .extra_mpdu_prefix_len = 4, /* IV */
+ .extra_mpdu_postfix_len = 4, /* ICV */
+ .owner = THIS_MODULE,
};
static int __init ieee80211_crypto_wep_init(void)
diff --git a/net/ieee80211/ieee80211_geo.c b/net/ieee80211/ieee80211_geo.c
new file mode 100644
index 00000000000..c4b54ef8f6d
--- /dev/null
+++ b/net/ieee80211/ieee80211_geo.c
@@ -0,0 +1,141 @@
+/******************************************************************************
+
+ Copyright(c) 2005 Intel Corporation. All rights reserved.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of version 2 of the GNU General Public License as
+ published by the Free Software Foundation.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc., 59
+ Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ The full GNU General Public License is included in this distribution in the
+ file called LICENSE.
+
+ Contact Information:
+ James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+******************************************************************************/
+#include <linux/compiler.h>
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/if_arp.h>
+#include <linux/in6.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/tcp.h>
+#include <linux/types.h>
+#include <linux/version.h>
+#include <linux/wireless.h>
+#include <linux/etherdevice.h>
+#include <asm/uaccess.h>
+
+#include <net/ieee80211.h>
+
+int ieee80211_is_valid_channel(struct ieee80211_device *ieee, u8 channel)
+{
+ int i;
+
+ /* Driver needs to initialize the geography map before using
+ * these helper functions */
+ BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
+
+ if (ieee->freq_band & IEEE80211_24GHZ_BAND)
+ for (i = 0; i < ieee->geo.bg_channels; i++)
+ /* NOTE: If G mode is currently supported but
+ * this is a B only channel, we don't see it
+ * as valid. */
+ if ((ieee->geo.bg[i].channel == channel) &&
+ (!(ieee->mode & IEEE_G) ||
+ !(ieee->geo.bg[i].flags & IEEE80211_CH_B_ONLY)))
+ return IEEE80211_24GHZ_BAND;
+
+ if (ieee->freq_band & IEEE80211_52GHZ_BAND)
+ for (i = 0; i < ieee->geo.a_channels; i++)
+ if (ieee->geo.a[i].channel == channel)
+ return IEEE80211_52GHZ_BAND;
+
+ return 0;
+}
+
+int ieee80211_channel_to_index(struct ieee80211_device *ieee, u8 channel)
+{
+ int i;
+
+ /* Driver needs to initialize the geography map before using
+ * these helper functions */
+ BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
+
+ if (ieee->freq_band & IEEE80211_24GHZ_BAND)
+ for (i = 0; i < ieee->geo.bg_channels; i++)
+ if (ieee->geo.bg[i].channel == channel)
+ return i;
+
+ if (ieee->freq_band & IEEE80211_52GHZ_BAND)
+ for (i = 0; i < ieee->geo.a_channels; i++)
+ if (ieee->geo.a[i].channel == channel)
+ return i;
+
+ return -1;
+}
+
+u8 ieee80211_freq_to_channel(struct ieee80211_device * ieee, u32 freq)
+{
+ int i;
+
+ /* Driver needs to initialize the geography map before using
+ * these helper functions */
+ BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
+
+ freq /= 100000;
+
+ if (ieee->freq_band & IEEE80211_24GHZ_BAND)
+ for (i = 0; i < ieee->geo.bg_channels; i++)
+ if (ieee->geo.bg[i].freq == freq)
+ return ieee->geo.bg[i].channel;
+
+ if (ieee->freq_band & IEEE80211_52GHZ_BAND)
+ for (i = 0; i < ieee->geo.a_channels; i++)
+ if (ieee->geo.a[i].freq == freq)
+ return ieee->geo.a[i].channel;
+
+ return 0;
+}
+
+int ieee80211_set_geo(struct ieee80211_device *ieee,
+ const struct ieee80211_geo *geo)
+{
+ memcpy(ieee->geo.name, geo->name, 3);
+ ieee->geo.name[3] = '\0';
+ ieee->geo.bg_channels = geo->bg_channels;
+ ieee->geo.a_channels = geo->a_channels;
+ memcpy(ieee->geo.bg, geo->bg, geo->bg_channels *
+ sizeof(struct ieee80211_channel));
+ memcpy(ieee->geo.a, geo->a, ieee->geo.a_channels *
+ sizeof(struct ieee80211_channel));
+ return 0;
+}
+
+const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device *ieee)
+{
+ return &ieee->geo;
+}
+
+EXPORT_SYMBOL(ieee80211_is_valid_channel);
+EXPORT_SYMBOL(ieee80211_freq_to_channel);
+EXPORT_SYMBOL(ieee80211_channel_to_index);
+EXPORT_SYMBOL(ieee80211_set_geo);
+EXPORT_SYMBOL(ieee80211_get_geo);
diff --git a/net/ieee80211/ieee80211_module.c b/net/ieee80211/ieee80211_module.c
index 6059e9e3712..f66d792cd20 100644
--- a/net/ieee80211/ieee80211_module.c
+++ b/net/ieee80211/ieee80211_module.c
@@ -1,6 +1,6 @@
/*******************************************************************************
- Copyright(c) 2004 Intel Corporation. All rights reserved.
+ Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
Portions of this file are based on the WEP enablement code provided by the
Host AP project hostap-drivers v0.1.3
@@ -53,12 +53,15 @@
#include <net/ieee80211.h>
-MODULE_DESCRIPTION("802.11 data/management/control stack");
-MODULE_AUTHOR
- ("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>");
-MODULE_LICENSE("GPL");
+#define DRV_DESCRIPTION "802.11 data/management/control stack"
+#define DRV_NAME "ieee80211"
+#define DRV_VERSION IEEE80211_VERSION
+#define DRV_COPYRIGHT "Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>"
-#define DRV_NAME "ieee80211"
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_AUTHOR(DRV_COPYRIGHT);
+MODULE_LICENSE("GPL");
static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
{
@@ -126,26 +129,34 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
/* Default fragmentation threshold is maximum payload size */
ieee->fts = DEFAULT_FTS;
+ ieee->rts = DEFAULT_FTS;
ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
ieee->open_wep = 1;
/* Default to enabling full open WEP with host based encrypt/decrypt */
ieee->host_encrypt = 1;
ieee->host_decrypt = 1;
+ ieee->host_mc_decrypt = 1;
+
+ /* Host fragementation in Open mode. Default is enabled.
+ * Note: host fragmentation is always enabled if host encryption
+ * is enabled. For cards can do hardware encryption, they must do
+ * hardware fragmentation as well. So we don't need a variable
+ * like host_enc_frag. */
+ ieee->host_open_frag = 1;
ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
INIT_LIST_HEAD(&ieee->crypt_deinit_list);
init_timer(&ieee->crypt_deinit_timer);
ieee->crypt_deinit_timer.data = (unsigned long)ieee;
ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
+ ieee->crypt_quiesced = 0;
spin_lock_init(&ieee->lock);
ieee->wpa_enabled = 0;
- ieee->tkip_countermeasures = 0;
ieee->drop_unencrypted = 0;
ieee->privacy_invoked = 0;
- ieee->ieee802_1x = 1;
return dev;
@@ -161,6 +172,7 @@ void free_ieee80211(struct net_device *dev)
int i;
+ ieee80211_crypt_quiescing(ieee);
del_timer_sync(&ieee->crypt_deinit_timer);
ieee80211_crypt_deinit_entries(ieee, 1);
@@ -195,38 +207,26 @@ static int show_debug_level(char *page, char **start, off_t offset,
static int store_debug_level(struct file *file, const char __user * buffer,
unsigned long count, void *data)
{
- char buf[] = "0x00000000";
- char *p = (char *)buf;
+ char buf[] = "0x00000000\n";
+ unsigned long len = min((unsigned long)sizeof(buf) - 1, count);
unsigned long val;
- if (count > sizeof(buf) - 1)
- count = sizeof(buf) - 1;
-
- if (copy_from_user(buf, buffer, count))
+ if (copy_from_user(buf, buffer, len))
return count;
- buf[count] = 0;
- /*
- * what a FPOS... What, sscanf(buf, "%i", &val) would be too
- * scary?
- */
- if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
- p++;
- if (p[0] == 'x' || p[0] == 'X')
- p++;
- val = simple_strtoul(p, &p, 16);
- } else
- val = simple_strtoul(p, &p, 10);
- if (p == buf)
+ buf[len] = 0;
+ if (sscanf(buf, "%li", &val) != 1)
printk(KERN_INFO DRV_NAME
": %s is not in hex or decimal form.\n", buf);
else
ieee80211_debug_level = val;
- return strlen(buf);
+ return strnlen(buf, len);
}
+#endif /* CONFIG_IEEE80211_DEBUG */
static int __init ieee80211_init(void)
{
+#ifdef CONFIG_IEEE80211_DEBUG
struct proc_dir_entry *e;
ieee80211_debug_level = debug;
@@ -246,26 +246,33 @@ static int __init ieee80211_init(void)
e->read_proc = show_debug_level;
e->write_proc = store_debug_level;
e->data = NULL;
+#endif /* CONFIG_IEEE80211_DEBUG */
+
+ printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
+ printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
return 0;
}
static void __exit ieee80211_exit(void)
{
+#ifdef CONFIG_IEEE80211_DEBUG
if (ieee80211_proc) {
remove_proc_entry("debug_level", ieee80211_proc);
remove_proc_entry(DRV_NAME, proc_net);
ieee80211_proc = NULL;
}
+#endif /* CONFIG_IEEE80211_DEBUG */
}
+#ifdef CONFIG_IEEE80211_DEBUG
#include <linux/moduleparam.h>
module_param(debug, int, 0444);
MODULE_PARM_DESC(debug, "debug output mask");
+#endif /* CONFIG_IEEE80211_DEBUG */
module_exit(ieee80211_exit);
module_init(ieee80211_init);
-#endif
const char *escape_essid(const char *essid, u8 essid_len)
{
diff --git a/net/ieee80211/ieee80211_rx.c b/net/ieee80211/ieee80211_rx.c
index f7dcd854139..ce694cf5c16 100644
--- a/net/ieee80211/ieee80211_rx.c
+++ b/net/ieee80211/ieee80211_rx.c
@@ -5,7 +5,7 @@
* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
* <jkmaline@cc.hut.fi>
* Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
- * Copyright (c) 2004, Intel Corporation
+ * Copyright (c) 2004-2005, Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -87,7 +87,7 @@ static struct ieee80211_frag_entry *ieee80211_frag_cache_find(struct
/* Called only as a tasklet (software IRQ) */
static struct sk_buff *ieee80211_frag_cache_get(struct ieee80211_device *ieee,
- struct ieee80211_hdr *hdr)
+ struct ieee80211_hdr_4addr *hdr)
{
struct sk_buff *skb = NULL;
u16 sc;
@@ -101,7 +101,7 @@ static struct sk_buff *ieee80211_frag_cache_get(struct ieee80211_device *ieee,
if (frag == 0) {
/* Reserve enough space to fit maximum frame length */
skb = dev_alloc_skb(ieee->dev->mtu +
- sizeof(struct ieee80211_hdr) +
+ sizeof(struct ieee80211_hdr_4addr) +
8 /* LLC */ +
2 /* alignment */ +
8 /* WEP */ + ETH_ALEN /* WDS */ );
@@ -138,7 +138,7 @@ static struct sk_buff *ieee80211_frag_cache_get(struct ieee80211_device *ieee,
/* Called only as a tasklet (software IRQ) */
static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee,
- struct ieee80211_hdr *hdr)
+ struct ieee80211_hdr_4addr *hdr)
{
u16 sc;
unsigned int seq;
@@ -176,7 +176,7 @@ ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb,
ieee->dev->name);
return 0;
/*
- hostap_update_sta_ps(ieee, (struct hostap_ieee80211_hdr *)
+ hostap_update_sta_ps(ieee, (struct hostap_ieee80211_hdr_4addr *)
skb->data);*/
}
@@ -232,13 +232,13 @@ static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee,
{
struct net_device *dev = ieee->dev;
u16 fc, ethertype;
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr_3addr *hdr;
u8 *pos;
if (skb->len < 24)
return 0;
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (struct ieee80211_hdr_3addr *)skb->data;
fc = le16_to_cpu(hdr->frame_ctl);
/* check that the frame is unicast frame to us */
@@ -271,26 +271,15 @@ static inline int
ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb,
struct ieee80211_crypt_data *crypt)
{
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr_3addr *hdr;
int res, hdrlen;
if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL)
return 0;
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (struct ieee80211_hdr_3addr *)skb->data;
hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
-#ifdef CONFIG_IEEE80211_CRYPT_TKIP
- if (ieee->tkip_countermeasures && strcmp(crypt->ops->name, "TKIP") == 0) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: TKIP countermeasures: dropped "
- "received packet from " MAC_FMT "\n",
- ieee->dev->name, MAC_ARG(hdr->addr2));
- }
- return -1;
- }
-#endif
-
atomic_inc(&crypt->refcnt);
res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv);
atomic_dec(&crypt->refcnt);
@@ -314,13 +303,13 @@ ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee,
struct sk_buff *skb, int keyidx,
struct ieee80211_crypt_data *crypt)
{
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr_3addr *hdr;
int res, hdrlen;
if (crypt == NULL || crypt->ops->decrypt_msdu == NULL)
return 0;
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (struct ieee80211_hdr_3addr *)skb->data;
hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
atomic_inc(&crypt->refcnt);
@@ -343,7 +332,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
struct ieee80211_rx_stats *rx_stats)
{
struct net_device *dev = ieee->dev;
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr_4addr *hdr;
size_t hdrlen;
u16 fc, type, stype, sc;
struct net_device_stats *stats;
@@ -363,7 +352,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
struct ieee80211_crypt_data *crypt = NULL;
int keyidx = 0;
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
stats = &ieee->stats;
if (skb->len < 10) {
@@ -378,35 +367,51 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
frag = WLAN_GET_SEQ_FRAG(sc);
hdrlen = ieee80211_get_hdrlen(fc);
-#ifdef NOT_YET
-#if WIRELESS_EXT > 15
/* Put this code here so that we avoid duplicating it in all
* Rx paths. - Jean II */
#ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */
/* If spy monitoring on */
- if (iface->spy_data.spy_number > 0) {
+ if (ieee->spy_data.spy_number > 0) {
struct iw_quality wstats;
- wstats.level = rx_stats->signal;
- wstats.noise = rx_stats->noise;
- wstats.updated = 6; /* No qual value */
+
+ wstats.updated = 0;
+ if (rx_stats->mask & IEEE80211_STATMASK_RSSI) {
+ wstats.level = rx_stats->rssi;
+ wstats.updated |= IW_QUAL_LEVEL_UPDATED;
+ } else
+ wstats.updated |= IW_QUAL_LEVEL_INVALID;
+
+ if (rx_stats->mask & IEEE80211_STATMASK_NOISE) {
+ wstats.noise = rx_stats->noise;
+ wstats.updated |= IW_QUAL_NOISE_UPDATED;
+ } else
+ wstats.updated |= IW_QUAL_NOISE_INVALID;
+
+ if (rx_stats->mask & IEEE80211_STATMASK_SIGNAL) {
+ wstats.qual = rx_stats->signal;
+ wstats.updated |= IW_QUAL_QUAL_UPDATED;
+ } else
+ wstats.updated |= IW_QUAL_QUAL_INVALID;
+
/* Update spy records */
- wireless_spy_update(dev, hdr->addr2, &wstats);
+ wireless_spy_update(ieee->dev, hdr->addr2, &wstats);
}
#endif /* IW_WIRELESS_SPY */
-#endif /* WIRELESS_EXT > 15 */
+
+#ifdef NOT_YET
hostap_update_rx_stats(local->ap, hdr, rx_stats);
#endif
-#if WIRELESS_EXT > 15
if (ieee->iw_mode == IW_MODE_MONITOR) {
ieee80211_monitor_rx(ieee, skb, rx_stats);
stats->rx_packets++;
stats->rx_bytes += skb->len;
return 1;
}
-#endif
- if (ieee->host_decrypt) {
+ if ((is_multicast_ether_addr(hdr->addr1) ||
+ is_broadcast_ether_addr(hdr->addr2)) ? ieee->host_mc_decrypt :
+ ieee->host_decrypt) {
int idx = 0;
if (skb->len >= hdrlen + 3)
idx = skb->data[hdrlen + 3] >> 6;
@@ -531,6 +536,9 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
/* Nullfunc frames may have PS-bit set, so they must be passed to
* hostap_handle_sta_rx() before being dropped here. */
+
+ stype &= ~IEEE80211_STYPE_QOS_DATA;
+
if (stype != IEEE80211_STYPE_DATA &&
stype != IEEE80211_STYPE_DATA_CFACK &&
stype != IEEE80211_STYPE_DATA_CFPOLL &&
@@ -549,7 +557,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
(keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0)
goto rx_dropped;
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
/* skb: hdr + (possibly fragmented) plaintext payload */
// PR: FIXME: hostap has additional conditions in the "if" below:
@@ -603,7 +611,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
/* this was the last fragment and the frame will be
* delivered, so remove skb from fragment cache */
skb = frag_skb;
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
ieee80211_frag_cache_invalidate(ieee, hdr);
}
@@ -613,7 +621,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt))
goto rx_dropped;
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep) {
if ( /*ieee->ieee802_1x && */
ieee80211_is_eapol_frame(ieee, skb)) {
@@ -755,69 +763,179 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
#define MGMT_FRAME_FIXED_PART_LENGTH 0x24
-static inline int ieee80211_is_ofdm_rate(u8 rate)
+static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
+
+/*
+* Make ther structure we read from the beacon packet has
+* the right values
+*/
+static int ieee80211_verify_qos_info(struct ieee80211_qos_information_element
+ *info_element, int sub_type)
{
- switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
- case IEEE80211_OFDM_RATE_6MB:
- case IEEE80211_OFDM_RATE_9MB:
- case IEEE80211_OFDM_RATE_12MB:
- case IEEE80211_OFDM_RATE_18MB:
- case IEEE80211_OFDM_RATE_24MB:
- case IEEE80211_OFDM_RATE_36MB:
- case IEEE80211_OFDM_RATE_48MB:
- case IEEE80211_OFDM_RATE_54MB:
- return 1;
- }
+
+ if (info_element->qui_subtype != sub_type)
+ return -1;
+ if (memcmp(info_element->qui, qos_oui, QOS_OUI_LEN))
+ return -1;
+ if (info_element->qui_type != QOS_OUI_TYPE)
+ return -1;
+ if (info_element->version != QOS_VERSION_1)
+ return -1;
+
return 0;
}
-static inline int ieee80211_network_init(struct ieee80211_device *ieee,
- struct ieee80211_probe_response
- *beacon,
- struct ieee80211_network *network,
- struct ieee80211_rx_stats *stats)
+/*
+ * Parse a QoS parameter element
+ */
+static int ieee80211_read_qos_param_element(struct ieee80211_qos_parameter_info
+ *element_param, struct ieee80211_info_element
+ *info_element)
{
-#ifdef CONFIG_IEEE80211_DEBUG
- char rates_str[64];
- char *p;
-#endif
- struct ieee80211_info_element *info_element;
- u16 left;
- u8 i;
+ int ret = 0;
+ u16 size = sizeof(struct ieee80211_qos_parameter_info) - 2;
- /* Pull out fixed field data */
- memcpy(network->bssid, beacon->header.addr3, ETH_ALEN);
- network->capability = beacon->capability;
- network->last_scanned = jiffies;
- network->time_stamp[0] = beacon->time_stamp[0];
- network->time_stamp[1] = beacon->time_stamp[1];
- network->beacon_interval = beacon->beacon_interval;
- /* Where to pull this? beacon->listen_interval; */
- network->listen_interval = 0x0A;
- network->rates_len = network->rates_ex_len = 0;
- network->last_associate = 0;
- network->ssid_len = 0;
- network->flags = 0;
- network->atim_window = 0;
+ if ((info_element == NULL) || (element_param == NULL))
+ return -1;
- if (stats->freq == IEEE80211_52GHZ_BAND) {
- /* for A band (No DS info) */
- network->channel = stats->received_channel;
+ if (info_element->id == QOS_ELEMENT_ID && info_element->len == size) {
+ memcpy(element_param->info_element.qui, info_element->data,
+ info_element->len);
+ element_param->info_element.elementID = info_element->id;
+ element_param->info_element.length = info_element->len;
} else
- network->flags |= NETWORK_HAS_CCK;
+ ret = -1;
+ if (ret == 0)
+ ret = ieee80211_verify_qos_info(&element_param->info_element,
+ QOS_OUI_PARAM_SUB_TYPE);
+ return ret;
+}
- network->wpa_ie_len = 0;
- network->rsn_ie_len = 0;
+/*
+ * Parse a QoS information element
+ */
+static int ieee80211_read_qos_info_element(struct
+ ieee80211_qos_information_element
+ *element_info, struct ieee80211_info_element
+ *info_element)
+{
+ int ret = 0;
+ u16 size = sizeof(struct ieee80211_qos_information_element) - 2;
+
+ if (element_info == NULL)
+ return -1;
+ if (info_element == NULL)
+ return -1;
+
+ if ((info_element->id == QOS_ELEMENT_ID) && (info_element->len == size)) {
+ memcpy(element_info->qui, info_element->data,
+ info_element->len);
+ element_info->elementID = info_element->id;
+ element_info->length = info_element->len;
+ } else
+ ret = -1;
+
+ if (ret == 0)
+ ret = ieee80211_verify_qos_info(element_info,
+ QOS_OUI_INFO_SUB_TYPE);
+ return ret;
+}
+
+/*
+ * Write QoS parameters from the ac parameters.
+ */
+static int ieee80211_qos_convert_ac_to_parameters(struct
+ ieee80211_qos_parameter_info
+ *param_elm, struct
+ ieee80211_qos_parameters
+ *qos_param)
+{
+ int rc = 0;
+ int i;
+ struct ieee80211_qos_ac_parameter *ac_params;
+ u32 txop;
+ u8 cw_min;
+ u8 cw_max;
+
+ for (i = 0; i < QOS_QUEUE_NUM; i++) {
+ ac_params = &(param_elm->ac_params_record[i]);
+
+ qos_param->aifs[i] = (ac_params->aci_aifsn) & 0x0F;
+ qos_param->aifs[i] -= (qos_param->aifs[i] < 2) ? 0 : 2;
+
+ cw_min = ac_params->ecw_min_max & 0x0F;
+ qos_param->cw_min[i] = (u16) ((1 << cw_min) - 1);
+
+ cw_max = (ac_params->ecw_min_max & 0xF0) >> 4;
+ qos_param->cw_max[i] = (u16) ((1 << cw_max) - 1);
+
+ qos_param->flag[i] =
+ (ac_params->aci_aifsn & 0x10) ? 0x01 : 0x00;
+
+ txop = le16_to_cpu(ac_params->tx_op_limit) * 32;
+ qos_param->tx_op_limit[i] = (u16) txop;
+ }
+ return rc;
+}
+
+/*
+ * we have a generic data element which it may contain QoS information or
+ * parameters element. check the information element length to decide
+ * which type to read
+ */
+static int ieee80211_parse_qos_info_param_IE(struct ieee80211_info_element
+ *info_element,
+ struct ieee80211_network *network)
+{
+ int rc = 0;
+ struct ieee80211_qos_parameters *qos_param = NULL;
+ struct ieee80211_qos_information_element qos_info_element;
+
+ rc = ieee80211_read_qos_info_element(&qos_info_element, info_element);
+
+ if (rc == 0) {
+ network->qos_data.param_count = qos_info_element.ac_info & 0x0F;
+ network->flags |= NETWORK_HAS_QOS_INFORMATION;
+ } else {
+ struct ieee80211_qos_parameter_info param_element;
+
+ rc = ieee80211_read_qos_param_element(&param_element,
+ info_element);
+ if (rc == 0) {
+ qos_param = &(network->qos_data.parameters);
+ ieee80211_qos_convert_ac_to_parameters(&param_element,
+ qos_param);
+ network->flags |= NETWORK_HAS_QOS_PARAMETERS;
+ network->qos_data.param_count =
+ param_element.info_element.ac_info & 0x0F;
+ }
+ }
+
+ if (rc == 0) {
+ IEEE80211_DEBUG_QOS("QoS is supported\n");
+ network->qos_data.supported = 1;
+ }
+ return rc;
+}
+
+static int ieee80211_parse_info_param(struct ieee80211_info_element
+ *info_element, u16 length,
+ struct ieee80211_network *network)
+{
+ u8 i;
+#ifdef CONFIG_IEEE80211_DEBUG
+ char rates_str[64];
+ char *p;
+#endif
- info_element = &beacon->info_element;
- left = stats->len - ((void *)info_element - (void *)beacon);
- while (left >= sizeof(struct ieee80211_info_element_hdr)) {
- if (sizeof(struct ieee80211_info_element_hdr) +
- info_element->len > left) {
- IEEE80211_DEBUG_SCAN
- ("SCAN: parse failed: info_element->len + 2 > left : info_element->len+2=%Zd left=%d.\n",
- info_element->len +
- sizeof(struct ieee80211_info_element), left);
+ while (length >= sizeof(*info_element)) {
+ if (sizeof(*info_element) + info_element->len > length) {
+ IEEE80211_DEBUG_MGMT("Info elem: parse failed: "
+ "info_element->len + 2 > left : "
+ "info_element->len+2=%zd left=%d, id=%d.\n",
+ info_element->len +
+ sizeof(*info_element),
+ length, info_element->id);
return 1;
}
@@ -837,7 +955,7 @@ static inline int ieee80211_network_init(struct ieee80211_device *ieee,
memset(network->ssid + network->ssid_len, 0,
IW_ESSID_MAX_SIZE - network->ssid_len);
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_SSID: '%s' len=%d.\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_SSID: '%s' len=%d.\n",
network->ssid, network->ssid_len);
break;
@@ -845,15 +963,14 @@ static inline int ieee80211_network_init(struct ieee80211_device *ieee,
#ifdef CONFIG_IEEE80211_DEBUG
p = rates_str;
#endif
- network->rates_len =
- min(info_element->len, MAX_RATES_LENGTH);
+ network->rates_len = min(info_element->len,
+ MAX_RATES_LENGTH);
for (i = 0; i < network->rates_len; i++) {
network->rates[i] = info_element->data[i];
#ifdef CONFIG_IEEE80211_DEBUG
- p += snprintf(p,
- sizeof(rates_str) - (p -
- rates_str),
- "%02X ", network->rates[i]);
+ p += snprintf(p, sizeof(rates_str) -
+ (p - rates_str), "%02X ",
+ network->rates[i]);
#endif
if (ieee80211_is_ofdm_rate
(info_element->data[i])) {
@@ -865,7 +982,7 @@ static inline int ieee80211_network_init(struct ieee80211_device *ieee,
}
}
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_RATES: '%s' (%d)\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES: '%s' (%d)\n",
rates_str, network->rates_len);
break;
@@ -873,15 +990,14 @@ static inline int ieee80211_network_init(struct ieee80211_device *ieee,
#ifdef CONFIG_IEEE80211_DEBUG
p = rates_str;
#endif
- network->rates_ex_len =
- min(info_element->len, MAX_RATES_EX_LENGTH);
+ network->rates_ex_len = min(info_element->len,
+ MAX_RATES_EX_LENGTH);
for (i = 0; i < network->rates_ex_len; i++) {
network->rates_ex[i] = info_element->data[i];
#ifdef CONFIG_IEEE80211_DEBUG
- p += snprintf(p,
- sizeof(rates_str) - (p -
- rates_str),
- "%02X ", network->rates[i]);
+ p += snprintf(p, sizeof(rates_str) -
+ (p - rates_str), "%02X ",
+ network->rates[i]);
#endif
if (ieee80211_is_ofdm_rate
(info_element->data[i])) {
@@ -893,40 +1009,51 @@ static inline int ieee80211_network_init(struct ieee80211_device *ieee,
}
}
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_RATES_EX: '%s' (%d)\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES_EX: '%s' (%d)\n",
rates_str, network->rates_ex_len);
break;
case MFIE_TYPE_DS_SET:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_DS_SET: %d\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_DS_SET: %d\n",
info_element->data[0]);
- if (stats->freq == IEEE80211_24GHZ_BAND)
- network->channel = info_element->data[0];
+ network->channel = info_element->data[0];
break;
case MFIE_TYPE_FH_SET:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_FH_SET: ignored\n");
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_FH_SET: ignored\n");
break;
case MFIE_TYPE_CF_SET:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_CF_SET: ignored\n");
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_CF_SET: ignored\n");
break;
case MFIE_TYPE_TIM:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_TIM: ignored\n");
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_TIM: ignored\n");
+ break;
+
+ case MFIE_TYPE_ERP_INFO:
+ network->erp_value = info_element->data[0];
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_ERP_SET: %d\n",
+ network->erp_value);
break;
case MFIE_TYPE_IBSS_SET:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_IBSS_SET: ignored\n");
+ network->atim_window = info_element->data[0];
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_IBSS_SET: %d\n",
+ network->atim_window);
break;
case MFIE_TYPE_CHALLENGE:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_CHALLENGE: ignored\n");
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_CHALLENGE: ignored\n");
break;
case MFIE_TYPE_GENERIC:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_GENERIC: %d bytes\n",
info_element->len);
+ if (!ieee80211_parse_qos_info_param_IE(info_element,
+ network))
+ break;
+
if (info_element->len >= 4 &&
info_element->data[0] == 0x00 &&
info_element->data[1] == 0x50 &&
@@ -940,7 +1067,7 @@ static inline int ieee80211_network_init(struct ieee80211_device *ieee,
break;
case MFIE_TYPE_RSN:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_RSN: %d bytes\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_RSN: %d bytes\n",
info_element->len);
network->rsn_ie_len = min(info_element->len + 2,
MAX_WPA_IE_LEN);
@@ -948,18 +1075,127 @@ static inline int ieee80211_network_init(struct ieee80211_device *ieee,
network->rsn_ie_len);
break;
+ case MFIE_TYPE_QOS_PARAMETER:
+ printk(KERN_ERR
+ "QoS Error need to parse QOS_PARAMETER IE\n");
+ break;
+
default:
- IEEE80211_DEBUG_SCAN("unsupported IE %d\n",
+ IEEE80211_DEBUG_MGMT("unsupported IE %d\n",
info_element->id);
break;
}
- left -= sizeof(struct ieee80211_info_element_hdr) +
- info_element->len;
- info_element = (struct ieee80211_info_element *)
- &info_element->data[info_element->len];
+ length -= sizeof(*info_element) + info_element->len;
+ info_element =
+ (struct ieee80211_info_element *)&info_element->
+ data[info_element->len];
+ }
+
+ return 0;
+}
+
+static int ieee80211_handle_assoc_resp(struct ieee80211_device *ieee, struct ieee80211_assoc_response
+ *frame, struct ieee80211_rx_stats *stats)
+{
+ struct ieee80211_network network_resp;
+ struct ieee80211_network *network = &network_resp;
+ struct net_device *dev = ieee->dev;
+
+ network->flags = 0;
+ network->qos_data.active = 0;
+ network->qos_data.supported = 0;
+ network->qos_data.param_count = 0;
+ network->qos_data.old_param_count = 0;
+
+ //network->atim_window = le16_to_cpu(frame->aid) & (0x3FFF);
+ network->atim_window = le16_to_cpu(frame->aid);
+ network->listen_interval = le16_to_cpu(frame->status);
+ memcpy(network->bssid, frame->header.addr3, ETH_ALEN);
+ network->capability = le16_to_cpu(frame->capability);
+ network->last_scanned = jiffies;
+ network->rates_len = network->rates_ex_len = 0;
+ network->last_associate = 0;
+ network->ssid_len = 0;
+ network->erp_value =
+ (network->capability & WLAN_CAPABILITY_IBSS) ? 0x3 : 0x0;
+
+ if (stats->freq == IEEE80211_52GHZ_BAND) {
+ /* for A band (No DS info) */
+ network->channel = stats->received_channel;
+ } else
+ network->flags |= NETWORK_HAS_CCK;
+
+ network->wpa_ie_len = 0;
+ network->rsn_ie_len = 0;
+
+ if (ieee80211_parse_info_param
+ (frame->info_element, stats->len - sizeof(*frame), network))
+ return 1;
+
+ network->mode = 0;
+ if (stats->freq == IEEE80211_52GHZ_BAND)
+ network->mode = IEEE_A;
+ else {
+ if (network->flags & NETWORK_HAS_OFDM)
+ network->mode |= IEEE_G;
+ if (network->flags & NETWORK_HAS_CCK)
+ network->mode |= IEEE_B;
}
+ if (ieee80211_is_empty_essid(network->ssid, network->ssid_len))
+ network->flags |= NETWORK_EMPTY_ESSID;
+
+ memcpy(&network->stats, stats, sizeof(network->stats));
+
+ if (ieee->handle_assoc_response != NULL)
+ ieee->handle_assoc_response(dev, frame, network);
+
+ return 0;
+}
+
+/***************************************************/
+
+static inline int ieee80211_network_init(struct ieee80211_device *ieee, struct ieee80211_probe_response
+ *beacon,
+ struct ieee80211_network *network,
+ struct ieee80211_rx_stats *stats)
+{
+ network->qos_data.active = 0;
+ network->qos_data.supported = 0;
+ network->qos_data.param_count = 0;
+ network->qos_data.old_param_count = 0;
+
+ /* Pull out fixed field data */
+ memcpy(network->bssid, beacon->header.addr3, ETH_ALEN);
+ network->capability = le16_to_cpu(beacon->capability);
+ network->last_scanned = jiffies;
+ network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]);
+ network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]);
+ network->beacon_interval = le16_to_cpu(beacon->beacon_interval);
+ /* Where to pull this? beacon->listen_interval; */
+ network->listen_interval = 0x0A;
+ network->rates_len = network->rates_ex_len = 0;
+ network->last_associate = 0;
+ network->ssid_len = 0;
+ network->flags = 0;
+ network->atim_window = 0;
+ network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ?
+ 0x3 : 0x0;
+
+ if (stats->freq == IEEE80211_52GHZ_BAND) {
+ /* for A band (No DS info) */
+ network->channel = stats->received_channel;
+ } else
+ network->flags |= NETWORK_HAS_CCK;
+
+ network->wpa_ie_len = 0;
+ network->rsn_ie_len = 0;
+
+ if (ieee80211_parse_info_param
+ (beacon->info_element, stats->len - sizeof(*beacon), network))
+ return 1;
+
network->mode = 0;
if (stats->freq == IEEE80211_52GHZ_BAND)
network->mode = IEEE_A;
@@ -1002,6 +1238,9 @@ static inline int is_same_network(struct ieee80211_network *src,
static inline void update_network(struct ieee80211_network *dst,
struct ieee80211_network *src)
{
+ int qos_active;
+ u8 old_param;
+
memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats));
dst->capability = src->capability;
memcpy(dst->rates, src->rates, src->rates_len);
@@ -1017,6 +1256,7 @@ static inline void update_network(struct ieee80211_network *dst,
dst->beacon_interval = src->beacon_interval;
dst->listen_interval = src->listen_interval;
dst->atim_window = src->atim_window;
+ dst->erp_value = src->erp_value;
memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len);
dst->wpa_ie_len = src->wpa_ie_len;
@@ -1024,22 +1264,48 @@ static inline void update_network(struct ieee80211_network *dst,
dst->rsn_ie_len = src->rsn_ie_len;
dst->last_scanned = jiffies;
+ qos_active = src->qos_data.active;
+ old_param = dst->qos_data.old_param_count;
+ if (dst->flags & NETWORK_HAS_QOS_MASK)
+ memcpy(&dst->qos_data, &src->qos_data,
+ sizeof(struct ieee80211_qos_data));
+ else {
+ dst->qos_data.supported = src->qos_data.supported;
+ dst->qos_data.param_count = src->qos_data.param_count;
+ }
+
+ if (dst->qos_data.supported == 1) {
+ if (dst->ssid_len)
+ IEEE80211_DEBUG_QOS
+ ("QoS the network %s is QoS supported\n",
+ dst->ssid);
+ else
+ IEEE80211_DEBUG_QOS
+ ("QoS the network is QoS supported\n");
+ }
+ dst->qos_data.active = qos_active;
+ dst->qos_data.old_param_count = old_param;
+
/* dst->last_associate is not overwritten */
}
+static inline int is_beacon(int fc)
+{
+ return (WLAN_FC_GET_STYPE(le16_to_cpu(fc)) == IEEE80211_STYPE_BEACON);
+}
+
static inline void ieee80211_process_probe_response(struct ieee80211_device
- *ieee,
- struct
+ *ieee, struct
ieee80211_probe_response
- *beacon,
- struct ieee80211_rx_stats
+ *beacon, struct ieee80211_rx_stats
*stats)
{
+ struct net_device *dev = ieee->dev;
struct ieee80211_network network;
struct ieee80211_network *target;
struct ieee80211_network *oldest = NULL;
#ifdef CONFIG_IEEE80211_DEBUG
- struct ieee80211_info_element *info_element = &beacon->info_element;
+ struct ieee80211_info_element *info_element = beacon->info_element;
#endif
unsigned long flags;
@@ -1070,10 +1336,10 @@ static inline void ieee80211_process_probe_response(struct ieee80211_device
escape_essid(info_element->data,
info_element->len),
MAC_ARG(beacon->header.addr3),
- WLAN_FC_GET_STYPE(beacon->header.
- frame_ctl) ==
- IEEE80211_STYPE_PROBE_RESP ?
- "PROBE RESPONSE" : "BEACON");
+ is_beacon(le16_to_cpu
+ (beacon->header.
+ frame_ctl)) ?
+ "BEACON" : "PROBE RESPONSE");
return;
}
@@ -1122,10 +1388,10 @@ static inline void ieee80211_process_probe_response(struct ieee80211_device
escape_essid(network.ssid,
network.ssid_len),
MAC_ARG(network.bssid),
- WLAN_FC_GET_STYPE(beacon->header.
- frame_ctl) ==
- IEEE80211_STYPE_PROBE_RESP ?
- "PROBE RESPONSE" : "BEACON");
+ is_beacon(le16_to_cpu
+ (beacon->header.
+ frame_ctl)) ?
+ "BEACON" : "PROBE RESPONSE");
#endif
memcpy(target, &network, sizeof(*target));
list_add_tail(&target->list, &ieee->network_list);
@@ -1134,34 +1400,60 @@ static inline void ieee80211_process_probe_response(struct ieee80211_device
escape_essid(target->ssid,
target->ssid_len),
MAC_ARG(target->bssid),
- WLAN_FC_GET_STYPE(beacon->header.
- frame_ctl) ==
- IEEE80211_STYPE_PROBE_RESP ?
- "PROBE RESPONSE" : "BEACON");
+ is_beacon(le16_to_cpu
+ (beacon->header.
+ frame_ctl)) ?
+ "BEACON" : "PROBE RESPONSE");
update_network(target, &network);
}
spin_unlock_irqrestore(&ieee->lock, flags);
+
+ if (is_beacon(le16_to_cpu(beacon->header.frame_ctl))) {
+ if (ieee->handle_beacon != NULL)
+ ieee->handle_beacon(dev, beacon, &network);
+ } else {
+ if (ieee->handle_probe_response != NULL)
+ ieee->handle_probe_response(dev, beacon, &network);
+ }
}
void ieee80211_rx_mgt(struct ieee80211_device *ieee,
- struct ieee80211_hdr *header,
+ struct ieee80211_hdr_4addr *header,
struct ieee80211_rx_stats *stats)
{
- switch (WLAN_FC_GET_STYPE(header->frame_ctl)) {
+ switch (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl))) {
case IEEE80211_STYPE_ASSOC_RESP:
IEEE80211_DEBUG_MGMT("received ASSOCIATION RESPONSE (%d)\n",
- WLAN_FC_GET_STYPE(header->frame_ctl));
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
+ ieee80211_handle_assoc_resp(ieee,
+ (struct ieee80211_assoc_response *)
+ header, stats);
break;
case IEEE80211_STYPE_REASSOC_RESP:
IEEE80211_DEBUG_MGMT("received REASSOCIATION RESPONSE (%d)\n",
- WLAN_FC_GET_STYPE(header->frame_ctl));
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
+ break;
+
+ case IEEE80211_STYPE_PROBE_REQ:
+ IEEE80211_DEBUG_MGMT("recieved auth (%d)\n",
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
+
+ if (ieee->handle_probe_request != NULL)
+ ieee->handle_probe_request(ieee->dev,
+ (struct
+ ieee80211_probe_request *)
+ header, stats);
break;
case IEEE80211_STYPE_PROBE_RESP:
IEEE80211_DEBUG_MGMT("received PROBE RESPONSE (%d)\n",
- WLAN_FC_GET_STYPE(header->frame_ctl));
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
IEEE80211_DEBUG_SCAN("Probe response\n");
ieee80211_process_probe_response(ieee,
(struct
@@ -1171,20 +1463,46 @@ void ieee80211_rx_mgt(struct ieee80211_device *ieee,
case IEEE80211_STYPE_BEACON:
IEEE80211_DEBUG_MGMT("received BEACON (%d)\n",
- WLAN_FC_GET_STYPE(header->frame_ctl));
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
IEEE80211_DEBUG_SCAN("Beacon\n");
ieee80211_process_probe_response(ieee,
(struct
ieee80211_probe_response *)
header, stats);
break;
+ case IEEE80211_STYPE_AUTH:
+ IEEE80211_DEBUG_MGMT("recieved auth (%d)\n",
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
+
+ if (ieee->handle_auth != NULL)
+ ieee->handle_auth(ieee->dev,
+ (struct ieee80211_auth *)header);
+ break;
+
+ case IEEE80211_STYPE_DISASSOC:
+ if (ieee->handle_disassoc != NULL)
+ ieee->handle_disassoc(ieee->dev,
+ (struct ieee80211_disassoc *)
+ header);
+ break;
+
+ case IEEE80211_STYPE_DEAUTH:
+ printk("DEAUTH from AP\n");
+ if (ieee->handle_deauth != NULL)
+ ieee->handle_deauth(ieee->dev, (struct ieee80211_auth *)
+ header);
+ break;
default:
IEEE80211_DEBUG_MGMT("received UNKNOWN (%d)\n",
- WLAN_FC_GET_STYPE(header->frame_ctl));
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
IEEE80211_WARNING("%s: Unknown management packet: %d\n",
ieee->dev->name,
- WLAN_FC_GET_STYPE(header->frame_ctl));
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
break;
}
}
diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c
index eed07bbbe6b..95ccbadbf55 100644
--- a/net/ieee80211/ieee80211_tx.c
+++ b/net/ieee80211/ieee80211_tx.c
@@ -1,6 +1,6 @@
/******************************************************************************
- Copyright(c) 2003 - 2004 Intel Corporation. All rights reserved.
+ Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the terms of version 2 of the GNU General Public License as
@@ -128,7 +128,7 @@ payload of each frame is reduced to 492 bytes.
static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 };
static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
-static inline int ieee80211_put_snap(u8 * data, u16 h_proto)
+static inline int ieee80211_copy_snap(u8 * data, u16 h_proto)
{
struct ieee80211_snap_hdr *snap;
u8 *oui;
@@ -157,31 +157,14 @@ static inline int ieee80211_encrypt_fragment(struct ieee80211_device *ieee,
struct ieee80211_crypt_data *crypt = ieee->crypt[ieee->tx_keyidx];
int res;
-#ifdef CONFIG_IEEE80211_CRYPT_TKIP
- struct ieee80211_hdr *header;
-
- if (ieee->tkip_countermeasures &&
- crypt && crypt->ops && strcmp(crypt->ops->name, "TKIP") == 0) {
- header = (struct ieee80211_hdr *)frag->data;
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: TKIP countermeasures: dropped "
- "TX packet to " MAC_FMT "\n",
- ieee->dev->name, MAC_ARG(header->addr1));
- }
+ if (crypt == NULL)
return -1;
- }
-#endif
+
/* To encrypt, frame format is:
* IV (4 bytes), clear payload (including SNAP), ICV (4 bytes) */
-
- // PR: FIXME: Copied from hostap. Check fragmentation/MSDU/MPDU encryption.
- /* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so
- * call both MSDU and MPDU encryption functions from here. */
atomic_inc(&crypt->refcnt);
res = 0;
- if (crypt->ops->encrypt_msdu)
- res = crypt->ops->encrypt_msdu(frag, hdr_len, crypt->priv);
- if (res == 0 && crypt->ops->encrypt_mpdu)
+ if (crypt->ops && crypt->ops->encrypt_mpdu)
res = crypt->ops->encrypt_mpdu(frag, hdr_len, crypt->priv);
atomic_dec(&crypt->refcnt);
@@ -207,7 +190,7 @@ void ieee80211_txb_free(struct ieee80211_txb *txb)
}
static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
- gfp_t gfp_mask)
+ int headroom, gfp_t gfp_mask)
{
struct ieee80211_txb *txb;
int i;
@@ -221,11 +204,13 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
txb->frag_size = txb_size;
for (i = 0; i < nr_frags; i++) {
- txb->fragments[i] = dev_alloc_skb(txb_size);
+ txb->fragments[i] = __dev_alloc_skb(txb_size + headroom,
+ gfp_mask);
if (unlikely(!txb->fragments[i])) {
i--;
break;
}
+ skb_reserve(txb->fragments[i], headroom);
}
if (unlikely(i != nr_frags)) {
while (i >= 0)
@@ -236,25 +221,31 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
return txb;
}
-/* SKBs are added to the ieee->tx_queue. */
+/* Incoming skb is converted to a txb which consists of
+ * a block of 802.11 fragment packets (stored as skbs) */
int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ieee80211_device *ieee = netdev_priv(dev);
struct ieee80211_txb *txb = NULL;
- struct ieee80211_hdr *frag_hdr;
- int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size;
+ struct ieee80211_hdr_3addr *frag_hdr;
+ int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size,
+ rts_required;
unsigned long flags;
struct net_device_stats *stats = &ieee->stats;
- int ether_type, encrypt;
+ int ether_type, encrypt, host_encrypt, host_encrypt_msdu, host_build_iv;
int bytes, fc, hdr_len;
struct sk_buff *skb_frag;
- struct ieee80211_hdr header = { /* Ensure zero initialized */
+ struct ieee80211_hdr_3addr header = { /* Ensure zero initialized */
.duration_id = 0,
.seq_ctl = 0
};
u8 dest[ETH_ALEN], src[ETH_ALEN];
-
struct ieee80211_crypt_data *crypt;
+ int priority = skb->priority;
+ int snapped = 0;
+
+ if (ieee->is_queue_full && (*ieee->is_queue_full) (dev, priority))
+ return NETDEV_TX_BUSY;
spin_lock_irqsave(&ieee->lock, flags);
@@ -276,7 +267,11 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
crypt = ieee->crypt[ieee->tx_keyidx];
encrypt = !(ether_type == ETH_P_PAE && ieee->ieee802_1x) &&
- ieee->host_encrypt && crypt && crypt->ops;
+ ieee->sec.encrypt;
+
+ host_encrypt = ieee->host_encrypt && encrypt && crypt;
+ host_encrypt_msdu = ieee->host_encrypt_msdu && encrypt && crypt;
+ host_build_iv = ieee->host_build_iv && encrypt && crypt;
if (!encrypt && ieee->ieee802_1x &&
ieee->drop_unencrypted && ether_type != ETH_P_PAE) {
@@ -285,8 +280,8 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
}
/* Save source and destination addresses */
- memcpy(&dest, skb->data, ETH_ALEN);
- memcpy(&src, skb->data + ETH_ALEN, ETH_ALEN);
+ memcpy(dest, skb->data, ETH_ALEN);
+ memcpy(src, skb->data + ETH_ALEN, ETH_ALEN);
/* Advance the SKB to the start of the payload */
skb_pull(skb, sizeof(struct ethhdr));
@@ -294,7 +289,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
/* Determine total amount of storage required for TXB packets */
bytes = skb->len + SNAP_SIZE + sizeof(u16);
- if (encrypt)
+ if (host_encrypt)
fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA |
IEEE80211_FCTL_PROTECTED;
else
@@ -302,70 +297,144 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
if (ieee->iw_mode == IW_MODE_INFRA) {
fc |= IEEE80211_FCTL_TODS;
- /* To DS: Addr1 = BSSID, Addr2 = SA,
- Addr3 = DA */
- memcpy(&header.addr1, ieee->bssid, ETH_ALEN);
- memcpy(&header.addr2, &src, ETH_ALEN);
- memcpy(&header.addr3, &dest, ETH_ALEN);
+ /* To DS: Addr1 = BSSID, Addr2 = SA, Addr3 = DA */
+ memcpy(header.addr1, ieee->bssid, ETH_ALEN);
+ memcpy(header.addr2, src, ETH_ALEN);
+ memcpy(header.addr3, dest, ETH_ALEN);
} else if (ieee->iw_mode == IW_MODE_ADHOC) {
- /* not From/To DS: Addr1 = DA, Addr2 = SA,
- Addr3 = BSSID */
- memcpy(&header.addr1, dest, ETH_ALEN);
- memcpy(&header.addr2, src, ETH_ALEN);
- memcpy(&header.addr3, ieee->bssid, ETH_ALEN);
+ /* not From/To DS: Addr1 = DA, Addr2 = SA, Addr3 = BSSID */
+ memcpy(header.addr1, dest, ETH_ALEN);
+ memcpy(header.addr2, src, ETH_ALEN);
+ memcpy(header.addr3, ieee->bssid, ETH_ALEN);
}
header.frame_ctl = cpu_to_le16(fc);
hdr_len = IEEE80211_3ADDR_LEN;
- /* Determine fragmentation size based on destination (multicast
- * and broadcast are not fragmented) */
- if (is_multicast_ether_addr(dest) || is_broadcast_ether_addr(dest))
- frag_size = MAX_FRAG_THRESHOLD;
- else
- frag_size = ieee->fts;
+ /* Encrypt msdu first on the whole data packet. */
+ if ((host_encrypt || host_encrypt_msdu) &&
+ crypt && crypt->ops && crypt->ops->encrypt_msdu) {
+ int res = 0;
+ int len = bytes + hdr_len + crypt->ops->extra_msdu_prefix_len +
+ crypt->ops->extra_msdu_postfix_len;
+ struct sk_buff *skb_new = dev_alloc_skb(len);
+
+ if (unlikely(!skb_new))
+ goto failed;
+
+ skb_reserve(skb_new, crypt->ops->extra_msdu_prefix_len);
+ memcpy(skb_put(skb_new, hdr_len), &header, hdr_len);
+ snapped = 1;
+ ieee80211_copy_snap(skb_put(skb_new, SNAP_SIZE + sizeof(u16)),
+ ether_type);
+ memcpy(skb_put(skb_new, skb->len), skb->data, skb->len);
+ res = crypt->ops->encrypt_msdu(skb_new, hdr_len, crypt->priv);
+ if (res < 0) {
+ IEEE80211_ERROR("msdu encryption failed\n");
+ dev_kfree_skb_any(skb_new);
+ goto failed;
+ }
+ dev_kfree_skb_any(skb);
+ skb = skb_new;
+ bytes += crypt->ops->extra_msdu_prefix_len +
+ crypt->ops->extra_msdu_postfix_len;
+ skb_pull(skb, hdr_len);
+ }
- /* Determine amount of payload per fragment. Regardless of if
- * this stack is providing the full 802.11 header, one will
- * eventually be affixed to this fragment -- so we must account for
- * it when determining the amount of payload space. */
- bytes_per_frag = frag_size - IEEE80211_3ADDR_LEN;
- if (ieee->config &
- (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
- bytes_per_frag -= IEEE80211_FCS_LEN;
-
- /* Each fragment may need to have room for encryptiong pre/postfix */
- if (encrypt)
- bytes_per_frag -= crypt->ops->extra_prefix_len +
- crypt->ops->extra_postfix_len;
-
- /* Number of fragments is the total bytes_per_frag /
- * payload_per_fragment */
- nr_frags = bytes / bytes_per_frag;
- bytes_last_frag = bytes % bytes_per_frag;
- if (bytes_last_frag)
+ if (host_encrypt || ieee->host_open_frag) {
+ /* Determine fragmentation size based on destination (multicast
+ * and broadcast are not fragmented) */
+ if (is_multicast_ether_addr(dest) ||
+ is_broadcast_ether_addr(dest))
+ frag_size = MAX_FRAG_THRESHOLD;
+ else
+ frag_size = ieee->fts;
+
+ /* Determine amount of payload per fragment. Regardless of if
+ * this stack is providing the full 802.11 header, one will
+ * eventually be affixed to this fragment -- so we must account
+ * for it when determining the amount of payload space. */
+ bytes_per_frag = frag_size - IEEE80211_3ADDR_LEN;
+ if (ieee->config &
+ (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
+ bytes_per_frag -= IEEE80211_FCS_LEN;
+
+ /* Each fragment may need to have room for encryptiong
+ * pre/postfix */
+ if (host_encrypt)
+ bytes_per_frag -= crypt->ops->extra_mpdu_prefix_len +
+ crypt->ops->extra_mpdu_postfix_len;
+
+ /* Number of fragments is the total
+ * bytes_per_frag / payload_per_fragment */
+ nr_frags = bytes / bytes_per_frag;
+ bytes_last_frag = bytes % bytes_per_frag;
+ if (bytes_last_frag)
+ nr_frags++;
+ else
+ bytes_last_frag = bytes_per_frag;
+ } else {
+ nr_frags = 1;
+ bytes_per_frag = bytes_last_frag = bytes;
+ frag_size = bytes + IEEE80211_3ADDR_LEN;
+ }
+
+ rts_required = (frag_size > ieee->rts
+ && ieee->config & CFG_IEEE80211_RTS);
+ if (rts_required)
nr_frags++;
- else
- bytes_last_frag = bytes_per_frag;
/* When we allocate the TXB we allocate enough space for the reserve
* and full fragment bytes (bytes_per_frag doesn't include prefix,
* postfix, header, FCS, etc.) */
- txb = ieee80211_alloc_txb(nr_frags, frag_size, GFP_ATOMIC);
+ txb = ieee80211_alloc_txb(nr_frags, frag_size,
+ ieee->tx_headroom, GFP_ATOMIC);
if (unlikely(!txb)) {
printk(KERN_WARNING "%s: Could not allocate TXB\n",
ieee->dev->name);
goto failed;
}
txb->encrypted = encrypt;
- txb->payload_size = bytes;
+ if (host_encrypt)
+ txb->payload_size = frag_size * (nr_frags - 1) +
+ bytes_last_frag;
+ else
+ txb->payload_size = bytes;
+
+ if (rts_required) {
+ skb_frag = txb->fragments[0];
+ frag_hdr =
+ (struct ieee80211_hdr_3addr *)skb_put(skb_frag, hdr_len);
+
+ /*
+ * Set header frame_ctl to the RTS.
+ */
+ header.frame_ctl =
+ cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
+ memcpy(frag_hdr, &header, hdr_len);
- for (i = 0; i < nr_frags; i++) {
+ /*
+ * Restore header frame_ctl to the original data setting.
+ */
+ header.frame_ctl = cpu_to_le16(fc);
+
+ if (ieee->config &
+ (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
+ skb_put(skb_frag, 4);
+
+ txb->rts_included = 1;
+ i = 1;
+ } else
+ i = 0;
+
+ for (; i < nr_frags; i++) {
skb_frag = txb->fragments[i];
- if (encrypt)
- skb_reserve(skb_frag, crypt->ops->extra_prefix_len);
+ if (host_encrypt || host_build_iv)
+ skb_reserve(skb_frag,
+ crypt->ops->extra_mpdu_prefix_len);
- frag_hdr = (struct ieee80211_hdr *)skb_put(skb_frag, hdr_len);
+ frag_hdr =
+ (struct ieee80211_hdr_3addr *)skb_put(skb_frag, hdr_len);
memcpy(frag_hdr, &header, hdr_len);
/* If this is not the last fragment, then add the MOREFRAGS
@@ -379,11 +448,10 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
bytes = bytes_last_frag;
}
- /* Put a SNAP header on the first fragment */
- if (i == 0) {
- ieee80211_put_snap(skb_put
- (skb_frag, SNAP_SIZE + sizeof(u16)),
- ether_type);
+ if (i == 0 && !snapped) {
+ ieee80211_copy_snap(skb_put
+ (skb_frag, SNAP_SIZE + sizeof(u16)),
+ ether_type);
bytes -= SNAP_SIZE + sizeof(u16);
}
@@ -394,8 +462,19 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
/* Encryption routine will move the header forward in order
* to insert the IV between the header and the payload */
- if (encrypt)
+ if (host_encrypt)
ieee80211_encrypt_fragment(ieee, skb_frag, hdr_len);
+ else if (host_build_iv) {
+ struct ieee80211_crypt_data *crypt;
+
+ crypt = ieee->crypt[ieee->tx_keyidx];
+ atomic_inc(&crypt->refcnt);
+ if (crypt->ops->build_iv)
+ crypt->ops->build_iv(skb_frag, hdr_len,
+ crypt->priv);
+ atomic_dec(&crypt->refcnt);
+ }
+
if (ieee->config &
(CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
skb_put(skb_frag, 4);
@@ -407,11 +486,20 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
dev_kfree_skb_any(skb);
if (txb) {
- if ((*ieee->hard_start_xmit) (txb, dev) == 0) {
+ int ret = (*ieee->hard_start_xmit) (txb, dev, priority);
+ if (ret == 0) {
stats->tx_packets++;
stats->tx_bytes += txb->payload_size;
return 0;
}
+
+ if (ret == NETDEV_TX_BUSY) {
+ printk(KERN_ERR "%s: NETDEV_TX_BUSY returned; "
+ "driver should report queue full via "
+ "ieee_device->is_queue_full.\n",
+ ieee->dev->name);
+ }
+
ieee80211_txb_free(txb);
}
@@ -422,7 +510,72 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
netif_stop_queue(dev);
stats->tx_errors++;
return 1;
+}
+
+/* Incoming 802.11 strucure is converted to a TXB
+ * a block of 802.11 fragment packets (stored as skbs) */
+int ieee80211_tx_frame(struct ieee80211_device *ieee,
+ struct ieee80211_hdr *frame, int len)
+{
+ struct ieee80211_txb *txb = NULL;
+ unsigned long flags;
+ struct net_device_stats *stats = &ieee->stats;
+ struct sk_buff *skb_frag;
+ int priority = -1;
+
+ spin_lock_irqsave(&ieee->lock, flags);
+ /* If there is no driver handler to take the TXB, dont' bother
+ * creating it... */
+ if (!ieee->hard_start_xmit) {
+ printk(KERN_WARNING "%s: No xmit handler.\n", ieee->dev->name);
+ goto success;
+ }
+
+ if (unlikely(len < 24)) {
+ printk(KERN_WARNING "%s: skb too small (%d).\n",
+ ieee->dev->name, len);
+ goto success;
+ }
+
+ /* When we allocate the TXB we allocate enough space for the reserve
+ * and full fragment bytes (bytes_per_frag doesn't include prefix,
+ * postfix, header, FCS, etc.) */
+ txb = ieee80211_alloc_txb(1, len, ieee->tx_headroom, GFP_ATOMIC);
+ if (unlikely(!txb)) {
+ printk(KERN_WARNING "%s: Could not allocate TXB\n",
+ ieee->dev->name);
+ goto failed;
+ }
+ txb->encrypted = 0;
+ txb->payload_size = len;
+
+ skb_frag = txb->fragments[0];
+
+ memcpy(skb_put(skb_frag, len), frame, len);
+
+ if (ieee->config &
+ (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
+ skb_put(skb_frag, 4);
+
+ success:
+ spin_unlock_irqrestore(&ieee->lock, flags);
+
+ if (txb) {
+ if ((*ieee->hard_start_xmit) (txb, ieee->dev, priority) == 0) {
+ stats->tx_packets++;
+ stats->tx_bytes += txb->payload_size;
+ return 0;
+ }
+ ieee80211_txb_free(txb);
+ }
+ return 0;
+
+ failed:
+ spin_unlock_irqrestore(&ieee->lock, flags);
+ stats->tx_errors++;
+ return 1;
}
+EXPORT_SYMBOL(ieee80211_tx_frame);
EXPORT_SYMBOL(ieee80211_txb_free);
diff --git a/net/ieee80211/ieee80211_wx.c b/net/ieee80211/ieee80211_wx.c
index 94882f39b07..1ce7af9bec3 100644
--- a/net/ieee80211/ieee80211_wx.c
+++ b/net/ieee80211/ieee80211_wx.c
@@ -1,6 +1,6 @@
/******************************************************************************
- Copyright(c) 2004 Intel Corporation. All rights reserved.
+ Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
Portions of this file are based on the WEP enablement code provided by the
Host AP project hostap-drivers v0.1.3
@@ -32,6 +32,7 @@
#include <linux/kmod.h>
#include <linux/module.h>
+#include <linux/jiffies.h>
#include <net/ieee80211.h>
#include <linux/wireless.h>
@@ -140,18 +141,41 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee,
start = iwe_stream_add_point(start, stop, &iwe, custom);
/* Add quality statistics */
- /* TODO: Fix these values... */
iwe.cmd = IWEVQUAL;
- iwe.u.qual.qual = network->stats.signal;
- iwe.u.qual.level = network->stats.rssi;
- iwe.u.qual.noise = network->stats.noise;
- iwe.u.qual.updated = network->stats.mask & IEEE80211_STATMASK_WEMASK;
- if (!(network->stats.mask & IEEE80211_STATMASK_RSSI))
- iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
- if (!(network->stats.mask & IEEE80211_STATMASK_NOISE))
+ iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
+ IW_QUAL_NOISE_UPDATED;
+
+ if (!(network->stats.mask & IEEE80211_STATMASK_RSSI)) {
+ iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID |
+ IW_QUAL_LEVEL_INVALID;
+ iwe.u.qual.qual = 0;
+ iwe.u.qual.level = 0;
+ } else {
+ iwe.u.qual.level = network->stats.rssi;
+ if (ieee->perfect_rssi == ieee->worst_rssi)
+ iwe.u.qual.qual = 100;
+ else
+ iwe.u.qual.qual =
+ (100 *
+ (ieee->perfect_rssi - ieee->worst_rssi) *
+ (ieee->perfect_rssi - ieee->worst_rssi) -
+ (ieee->perfect_rssi - network->stats.rssi) *
+ (15 * (ieee->perfect_rssi - ieee->worst_rssi) +
+ 62 * (ieee->perfect_rssi - network->stats.rssi))) /
+ ((ieee->perfect_rssi - ieee->worst_rssi) *
+ (ieee->perfect_rssi - ieee->worst_rssi));
+ if (iwe.u.qual.qual > 100)
+ iwe.u.qual.qual = 100;
+ else if (iwe.u.qual.qual < 1)
+ iwe.u.qual.qual = 0;
+ }
+
+ if (!(network->stats.mask & IEEE80211_STATMASK_NOISE)) {
iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
- if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL))
- iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
+ iwe.u.qual.noise = 0;
+ } else {
+ iwe.u.qual.noise = network->stats.noise;
+ }
start = iwe_stream_add_event(start, stop, &iwe, IW_EV_QUAL_LEN);
@@ -162,7 +186,7 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee,
if (iwe.u.data.length)
start = iwe_stream_add_point(start, stop, &iwe, custom);
- if (ieee->wpa_enabled && network->wpa_ie_len) {
+ if (network->wpa_ie_len) {
char buf[MAX_WPA_IE_LEN * 2 + 30];
u8 *p = buf;
@@ -177,7 +201,7 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee,
start = iwe_stream_add_point(start, stop, &iwe, buf);
}
- if (ieee->wpa_enabled && network->rsn_ie_len) {
+ if (network->rsn_ie_len) {
char buf[MAX_WPA_IE_LEN * 2 + 30];
u8 *p = buf;
@@ -197,8 +221,8 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee,
iwe.cmd = IWEVCUSTOM;
p = custom;
p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
- " Last beacon: %lums ago",
- (jiffies - network->last_scanned) / (HZ / 100));
+ " Last beacon: %dms ago",
+ jiffies_to_msecs(jiffies - network->last_scanned));
iwe.u.data.length = p - custom;
if (iwe.u.data.length)
start = iwe_stream_add_point(start, stop, &iwe, custom);
@@ -228,13 +252,13 @@ int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
ev = ipw2100_translate_scan(ieee, ev, stop, network);
else
IEEE80211_DEBUG_SCAN("Not showing network '%s ("
- MAC_FMT ")' due to age (%lums).\n",
+ MAC_FMT ")' due to age (%dms).\n",
escape_essid(network->ssid,
network->ssid_len),
MAC_ARG(network->bssid),
- (jiffies -
- network->last_scanned) / (HZ /
- 100));
+ jiffies_to_msecs(jiffies -
+ network->
+ last_scanned));
}
spin_unlock_irqrestore(&ieee->lock, flags);
@@ -258,6 +282,7 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
};
int i, key, key_provided, len;
struct ieee80211_crypt_data **crypt;
+ int host_crypto = ieee->host_encrypt || ieee->host_decrypt;
IEEE80211_DEBUG_WX("SET_ENCODE\n");
@@ -298,15 +323,17 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
if (i == WEP_KEYS) {
sec.enabled = 0;
+ sec.encrypt = 0;
sec.level = SEC_LEVEL_0;
- sec.flags |= SEC_ENABLED | SEC_LEVEL;
+ sec.flags |= SEC_ENABLED | SEC_LEVEL | SEC_ENCRYPT;
}
goto done;
}
sec.enabled = 1;
- sec.flags |= SEC_ENABLED;
+ sec.encrypt = 1;
+ sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
if (*crypt != NULL && (*crypt)->ops != NULL &&
strcmp((*crypt)->ops->name, "WEP") != 0) {
@@ -315,7 +342,7 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
ieee80211_crypt_delayed_deinit(ieee, crypt);
}
- if (*crypt == NULL) {
+ if (*crypt == NULL && host_crypto) {
struct ieee80211_crypt_data *new_crypt;
/* take WEP into use */
@@ -355,49 +382,56 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
key, escape_essid(sec.keys[key], len),
erq->length, len);
sec.key_sizes[key] = len;
- (*crypt)->ops->set_key(sec.keys[key], len, NULL,
- (*crypt)->priv);
+ if (*crypt)
+ (*crypt)->ops->set_key(sec.keys[key], len, NULL,
+ (*crypt)->priv);
sec.flags |= (1 << key);
/* This ensures a key will be activated if no key is
* explicitely set */
if (key == sec.active_key)
sec.flags |= SEC_ACTIVE_KEY;
+
} else {
- len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
- NULL, (*crypt)->priv);
- if (len == 0) {
- /* Set a default key of all 0 */
- IEEE80211_DEBUG_WX("Setting key %d to all zero.\n",
- key);
- memset(sec.keys[key], 0, 13);
- (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
- (*crypt)->priv);
- sec.key_sizes[key] = 13;
- sec.flags |= (1 << key);
+ if (host_crypto) {
+ len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
+ NULL, (*crypt)->priv);
+ if (len == 0) {
+ /* Set a default key of all 0 */
+ IEEE80211_DEBUG_WX("Setting key %d to all "
+ "zero.\n", key);
+ memset(sec.keys[key], 0, 13);
+ (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
+ (*crypt)->priv);
+ sec.key_sizes[key] = 13;
+ sec.flags |= (1 << key);
+ }
}
-
/* No key data - just set the default TX key index */
if (key_provided) {
- IEEE80211_DEBUG_WX
- ("Setting key %d to default Tx key.\n", key);
+ IEEE80211_DEBUG_WX("Setting key %d to default Tx "
+ "key.\n", key);
ieee->tx_keyidx = key;
sec.active_key = key;
sec.flags |= SEC_ACTIVE_KEY;
}
}
-
- done:
- ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
- sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
- sec.flags |= SEC_AUTH_MODE;
- IEEE80211_DEBUG_WX("Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ?
- "OPEN" : "SHARED KEY");
+ if (erq->flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) {
+ ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
+ sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
+ WLAN_AUTH_SHARED_KEY;
+ sec.flags |= SEC_AUTH_MODE;
+ IEEE80211_DEBUG_WX("Auth: %s\n",
+ sec.auth_mode == WLAN_AUTH_OPEN ?
+ "OPEN" : "SHARED KEY");
+ }
/* For now we just support WEP, so only set that security level...
* TODO: When WPA is added this is one place that needs to change */
sec.flags |= SEC_LEVEL;
sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */
+ sec.encode_alg[key] = SEC_ALG_WEP;
+ done:
if (ieee->set_security)
ieee->set_security(dev, &sec);
@@ -422,6 +456,7 @@ int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
struct iw_point *erq = &(wrqu->encoding);
int len, key;
struct ieee80211_crypt_data *crypt;
+ struct ieee80211_security *sec = &ieee->sec;
IEEE80211_DEBUG_WX("GET_ENCODE\n");
@@ -436,23 +471,16 @@ int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
crypt = ieee->crypt[key];
erq->flags = key + 1;
- if (crypt == NULL || crypt->ops == NULL) {
+ if (!sec->enabled) {
erq->length = 0;
erq->flags |= IW_ENCODE_DISABLED;
return 0;
}
- if (strcmp(crypt->ops->name, "WEP") != 0) {
- /* only WEP is supported with wireless extensions, so just
- * report that encryption is used */
- erq->length = 0;
- erq->flags |= IW_ENCODE_ENABLED;
- return 0;
- }
+ len = sec->key_sizes[key];
+ memcpy(keybuf, sec->keys[key], len);
- len = crypt->ops->get_key(keybuf, WEP_KEY_LEN, NULL, crypt->priv);
erq->length = (len >= 0 ? len : 0);
-
erq->flags |= IW_ENCODE_ENABLED;
if (ieee->open_wep)
@@ -463,6 +491,240 @@ int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
return 0;
}
+int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct net_device *dev = ieee->dev;
+ struct iw_point *encoding = &wrqu->encoding;
+ struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
+ int i, idx, ret = 0;
+ int group_key = 0;
+ const char *alg, *module;
+ struct ieee80211_crypto_ops *ops;
+ struct ieee80211_crypt_data **crypt;
+
+ struct ieee80211_security sec = {
+ .flags = 0,
+ };
+
+ idx = encoding->flags & IW_ENCODE_INDEX;
+ if (idx) {
+ if (idx < 1 || idx > WEP_KEYS)
+ return -EINVAL;
+ idx--;
+ } else
+ idx = ieee->tx_keyidx;
+
+ if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
+ crypt = &ieee->crypt[idx];
+ group_key = 1;
+ } else {
+ if (idx != 0)
+ return -EINVAL;
+ if (ieee->iw_mode == IW_MODE_INFRA)
+ crypt = &ieee->crypt[idx];
+ else
+ return -EINVAL;
+ }
+
+ sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
+ if ((encoding->flags & IW_ENCODE_DISABLED) ||
+ ext->alg == IW_ENCODE_ALG_NONE) {
+ if (*crypt)
+ ieee80211_crypt_delayed_deinit(ieee, crypt);
+
+ for (i = 0; i < WEP_KEYS; i++)
+ if (ieee->crypt[i] != NULL)
+ break;
+
+ if (i == WEP_KEYS) {
+ sec.enabled = 0;
+ sec.encrypt = 0;
+ sec.level = SEC_LEVEL_0;
+ sec.flags |= SEC_LEVEL;
+ }
+ goto done;
+ }
+
+ sec.enabled = 1;
+ sec.encrypt = 1;
+
+ if (group_key ? !ieee->host_mc_decrypt :
+ !(ieee->host_encrypt || ieee->host_decrypt ||
+ ieee->host_encrypt_msdu))
+ goto skip_host_crypt;
+
+ switch (ext->alg) {
+ case IW_ENCODE_ALG_WEP:
+ alg = "WEP";
+ module = "ieee80211_crypt_wep";
+ break;
+ case IW_ENCODE_ALG_TKIP:
+ alg = "TKIP";
+ module = "ieee80211_crypt_tkip";
+ break;
+ case IW_ENCODE_ALG_CCMP:
+ alg = "CCMP";
+ module = "ieee80211_crypt_ccmp";
+ break;
+ default:
+ IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
+ dev->name, ext->alg);
+ ret = -EINVAL;
+ goto done;
+ }
+
+ ops = ieee80211_get_crypto_ops(alg);
+ if (ops == NULL) {
+ request_module(module);
+ ops = ieee80211_get_crypto_ops(alg);
+ }
+ if (ops == NULL) {
+ IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
+ dev->name, ext->alg);
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (*crypt == NULL || (*crypt)->ops != ops) {
+ struct ieee80211_crypt_data *new_crypt;
+
+ ieee80211_crypt_delayed_deinit(ieee, crypt);
+
+ new_crypt = (struct ieee80211_crypt_data *)
+ kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+ if (new_crypt == NULL) {
+ ret = -ENOMEM;
+ goto done;
+ }
+ memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
+ new_crypt->ops = ops;
+ if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
+ new_crypt->priv = new_crypt->ops->init(idx);
+ if (new_crypt->priv == NULL) {
+ kfree(new_crypt);
+ ret = -EINVAL;
+ goto done;
+ }
+ *crypt = new_crypt;
+ }
+
+ if (ext->key_len > 0 && (*crypt)->ops->set_key &&
+ (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
+ (*crypt)->priv) < 0) {
+ IEEE80211_DEBUG_WX("%s: key setting failed\n", dev->name);
+ ret = -EINVAL;
+ goto done;
+ }
+
+ skip_host_crypt:
+ if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
+ ieee->tx_keyidx = idx;
+ sec.active_key = idx;
+ sec.flags |= SEC_ACTIVE_KEY;
+ }
+
+ if (ext->alg != IW_ENCODE_ALG_NONE) {
+ memcpy(sec.keys[idx], ext->key, ext->key_len);
+ sec.key_sizes[idx] = ext->key_len;
+ sec.flags |= (1 << idx);
+ if (ext->alg == IW_ENCODE_ALG_WEP) {
+ sec.encode_alg[idx] = SEC_ALG_WEP;
+ sec.flags |= SEC_LEVEL;
+ sec.level = SEC_LEVEL_1;
+ } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
+ sec.encode_alg[idx] = SEC_ALG_TKIP;
+ sec.flags |= SEC_LEVEL;
+ sec.level = SEC_LEVEL_2;
+ } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
+ sec.encode_alg[idx] = SEC_ALG_CCMP;
+ sec.flags |= SEC_LEVEL;
+ sec.level = SEC_LEVEL_3;
+ }
+ /* Don't set sec level for group keys. */
+ if (group_key)
+ sec.flags &= ~SEC_LEVEL;
+ }
+ done:
+ if (ieee->set_security)
+ ieee->set_security(ieee->dev, &sec);
+
+ /*
+ * Do not reset port if card is in Managed mode since resetting will
+ * generate new IEEE 802.11 authentication which may end up in looping
+ * with IEEE 802.1X. If your hardware requires a reset after WEP
+ * configuration (for example... Prism2), implement the reset_port in
+ * the callbacks structures used to initialize the 802.11 stack.
+ */
+ if (ieee->reset_on_keychange &&
+ ieee->iw_mode != IW_MODE_INFRA &&
+ ieee->reset_port && ieee->reset_port(dev)) {
+ IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name);
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu, char *extra)
+{
+ struct iw_point *encoding = &wrqu->encoding;
+ struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
+ struct ieee80211_security *sec = &ieee->sec;
+ int idx, max_key_len;
+
+ max_key_len = encoding->length - sizeof(*ext);
+ if (max_key_len < 0)
+ return -EINVAL;
+
+ idx = encoding->flags & IW_ENCODE_INDEX;
+ if (idx) {
+ if (idx < 1 || idx > WEP_KEYS)
+ return -EINVAL;
+ idx--;
+ } else
+ idx = ieee->tx_keyidx;
+
+ if (!ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
+ if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
+ return -EINVAL;
+
+ encoding->flags = idx + 1;
+ memset(ext, 0, sizeof(*ext));
+
+ if (!sec->enabled) {
+ ext->alg = IW_ENCODE_ALG_NONE;
+ ext->key_len = 0;
+ encoding->flags |= IW_ENCODE_DISABLED;
+ } else {
+ if (sec->encode_alg[idx] == SEC_ALG_WEP)
+ ext->alg = IW_ENCODE_ALG_WEP;
+ else if (sec->encode_alg[idx] == SEC_ALG_TKIP)
+ ext->alg = IW_ENCODE_ALG_TKIP;
+ else if (sec->encode_alg[idx] == SEC_ALG_CCMP)
+ ext->alg = IW_ENCODE_ALG_CCMP;
+ else
+ return -EINVAL;
+
+ ext->key_len = sec->key_sizes[idx];
+ memcpy(ext->key, sec->keys[idx], ext->key_len);
+ encoding->flags |= IW_ENCODE_ENABLED;
+ if (ext->key_len &&
+ (ext->alg == IW_ENCODE_ALG_TKIP ||
+ ext->alg == IW_ENCODE_ALG_CCMP))
+ ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
+
+ }
+
+ return 0;
+}
+
+EXPORT_SYMBOL(ieee80211_wx_set_encodeext);
+EXPORT_SYMBOL(ieee80211_wx_get_encodeext);
+
EXPORT_SYMBOL(ieee80211_wx_get_scan);
EXPORT_SYMBOL(ieee80211_wx_set_encode);
EXPORT_SYMBOL(ieee80211_wx_get_encode);
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 74f2207e131..4ec4b2ca6ab 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -715,6 +715,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
break;
ret = 0;
if (ifa->ifa_mask != sin->sin_addr.s_addr) {
+ u32 old_mask = ifa->ifa_mask;
inet_del_ifa(in_dev, ifap, 0);
ifa->ifa_mask = sin->sin_addr.s_addr;
ifa->ifa_prefixlen = inet_mask_len(ifa->ifa_mask);
@@ -728,7 +729,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
if ((dev->flags & IFF_BROADCAST) &&
(ifa->ifa_prefixlen < 31) &&
(ifa->ifa_broadcast ==
- (ifa->ifa_local|~ifa->ifa_mask))) {
+ (ifa->ifa_local|~old_mask))) {
ifa->ifa_broadcast = (ifa->ifa_local |
~sin->sin_addr.s_addr);
}
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 0093ea08c7f..66247f38b37 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2404,7 +2404,7 @@ static int fib_route_seq_show(struct seq_file *seq, void *v)
prefix = htonl(l->key);
list_for_each_entry_rcu(fa, &li->falh, fa_list) {
- const struct fib_info *fi = rcu_dereference(fa->fa_info);
+ const struct fib_info *fi = fa->fa_info;
unsigned flags = fib_flag_trans(fa->fa_type, mask, fi);
if (fa->fa_type == RTN_BROADCAST
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 90dca711ac9..175e093ec56 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -1108,12 +1108,9 @@ void __init icmp_init(struct net_proto_family *ops)
struct inet_sock *inet;
int i;
- for (i = 0; i < NR_CPUS; i++) {
+ for_each_cpu(i) {
int err;
- if (!cpu_possible(i))
- continue;
-
err = sock_create_kern(PF_INET, SOCK_RAW, IPPROTO_ICMP,
&per_cpu(__icmp_socket, i));
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 1ad5202e556..87e350069ab 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1023,10 +1023,7 @@ ssize_t ip_append_page(struct sock *sk, struct page *page,
int alloclen;
skb_prev = skb;
- if (skb_prev)
- fraggap = skb_prev->len - maxfraglen;
- else
- fraggap = 0;
+ fraggap = skb_prev->len - maxfraglen;
alloclen = fragheaderlen + hh_len + fraggap + 15;
skb = sock_wmalloc(sk, alloclen, 1, sk->sk_allocation);
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c
index 07a80b56e8d..422ab68ee7f 100644
--- a/net/ipv4/netfilter/ip_conntrack_core.c
+++ b/net/ipv4/netfilter/ip_conntrack_core.c
@@ -50,7 +50,7 @@
#include <linux/netfilter_ipv4/ip_conntrack_core.h>
#include <linux/netfilter_ipv4/listhelp.h>
-#define IP_CONNTRACK_VERSION "2.3"
+#define IP_CONNTRACK_VERSION "2.4"
#if 0
#define DEBUGP printk
@@ -148,16 +148,20 @@ DEFINE_PER_CPU(struct ip_conntrack_stat, ip_conntrack_stat);
static int ip_conntrack_hash_rnd_initted;
static unsigned int ip_conntrack_hash_rnd;
-static u_int32_t
-hash_conntrack(const struct ip_conntrack_tuple *tuple)
+static u_int32_t __hash_conntrack(const struct ip_conntrack_tuple *tuple,
+ unsigned int size, unsigned int rnd)
{
-#if 0
- dump_tuple(tuple);
-#endif
return (jhash_3words(tuple->src.ip,
(tuple->dst.ip ^ tuple->dst.protonum),
(tuple->src.u.all | (tuple->dst.u.all << 16)),
- ip_conntrack_hash_rnd) % ip_conntrack_htable_size);
+ rnd) % size);
+}
+
+static u_int32_t
+hash_conntrack(const struct ip_conntrack_tuple *tuple)
+{
+ return __hash_conntrack(tuple, ip_conntrack_htable_size,
+ ip_conntrack_hash_rnd);
}
int
@@ -1341,14 +1345,13 @@ static int kill_all(struct ip_conntrack *i, void *data)
return 1;
}
-static void free_conntrack_hash(void)
+static void free_conntrack_hash(struct list_head *hash, int vmalloced,int size)
{
- if (ip_conntrack_vmalloc)
- vfree(ip_conntrack_hash);
+ if (vmalloced)
+ vfree(hash);
else
- free_pages((unsigned long)ip_conntrack_hash,
- get_order(sizeof(struct list_head)
- * ip_conntrack_htable_size));
+ free_pages((unsigned long)hash,
+ get_order(sizeof(struct list_head) * size));
}
void ip_conntrack_flush()
@@ -1378,12 +1381,83 @@ void ip_conntrack_cleanup(void)
ip_conntrack_flush();
kmem_cache_destroy(ip_conntrack_cachep);
kmem_cache_destroy(ip_conntrack_expect_cachep);
- free_conntrack_hash();
+ free_conntrack_hash(ip_conntrack_hash, ip_conntrack_vmalloc,
+ ip_conntrack_htable_size);
nf_unregister_sockopt(&so_getorigdst);
}
-static int hashsize;
-module_param(hashsize, int, 0400);
+static struct list_head *alloc_hashtable(int size, int *vmalloced)
+{
+ struct list_head *hash;
+ unsigned int i;
+
+ *vmalloced = 0;
+ hash = (void*)__get_free_pages(GFP_KERNEL,
+ get_order(sizeof(struct list_head)
+ * size));
+ if (!hash) {
+ *vmalloced = 1;
+ printk(KERN_WARNING"ip_conntrack: falling back to vmalloc.\n");
+ hash = vmalloc(sizeof(struct list_head) * size);
+ }
+
+ if (hash)
+ for (i = 0; i < size; i++)
+ INIT_LIST_HEAD(&hash[i]);
+
+ return hash;
+}
+
+int set_hashsize(const char *val, struct kernel_param *kp)
+{
+ int i, bucket, hashsize, vmalloced;
+ int old_vmalloced, old_size;
+ int rnd;
+ struct list_head *hash, *old_hash;
+ struct ip_conntrack_tuple_hash *h;
+
+ /* On boot, we can set this without any fancy locking. */
+ if (!ip_conntrack_htable_size)
+ return param_set_int(val, kp);
+
+ hashsize = simple_strtol(val, NULL, 0);
+ if (!hashsize)
+ return -EINVAL;
+
+ hash = alloc_hashtable(hashsize, &vmalloced);
+ if (!hash)
+ return -ENOMEM;
+
+ /* We have to rehash for the new table anyway, so we also can
+ * use a new random seed */
+ get_random_bytes(&rnd, 4);
+
+ write_lock_bh(&ip_conntrack_lock);
+ for (i = 0; i < ip_conntrack_htable_size; i++) {
+ while (!list_empty(&ip_conntrack_hash[i])) {
+ h = list_entry(ip_conntrack_hash[i].next,
+ struct ip_conntrack_tuple_hash, list);
+ list_del(&h->list);
+ bucket = __hash_conntrack(&h->tuple, hashsize, rnd);
+ list_add_tail(&h->list, &hash[bucket]);
+ }
+ }
+ old_size = ip_conntrack_htable_size;
+ old_vmalloced = ip_conntrack_vmalloc;
+ old_hash = ip_conntrack_hash;
+
+ ip_conntrack_htable_size = hashsize;
+ ip_conntrack_vmalloc = vmalloced;
+ ip_conntrack_hash = hash;
+ ip_conntrack_hash_rnd = rnd;
+ write_unlock_bh(&ip_conntrack_lock);
+
+ free_conntrack_hash(old_hash, old_vmalloced, old_size);
+ return 0;
+}
+
+module_param_call(hashsize, set_hashsize, param_get_uint,
+ &ip_conntrack_htable_size, 0600);
int __init ip_conntrack_init(void)
{
@@ -1392,9 +1466,7 @@ int __init ip_conntrack_init(void)
/* Idea from tcp.c: use 1/16384 of memory. On i386: 32MB
* machine has 256 buckets. >= 1GB machines have 8192 buckets. */
- if (hashsize) {
- ip_conntrack_htable_size = hashsize;
- } else {
+ if (!ip_conntrack_htable_size) {
ip_conntrack_htable_size
= (((num_physpages << PAGE_SHIFT) / 16384)
/ sizeof(struct list_head));
@@ -1416,20 +1488,8 @@ int __init ip_conntrack_init(void)
return ret;
}
- /* AK: the hash table is twice as big than needed because it
- uses list_head. it would be much nicer to caches to use a
- single pointer list head here. */
- ip_conntrack_vmalloc = 0;
- ip_conntrack_hash
- =(void*)__get_free_pages(GFP_KERNEL,
- get_order(sizeof(struct list_head)
- *ip_conntrack_htable_size));
- if (!ip_conntrack_hash) {
- ip_conntrack_vmalloc = 1;
- printk(KERN_WARNING "ip_conntrack: falling back to vmalloc.\n");
- ip_conntrack_hash = vmalloc(sizeof(struct list_head)
- * ip_conntrack_htable_size);
- }
+ ip_conntrack_hash = alloc_hashtable(ip_conntrack_htable_size,
+ &ip_conntrack_vmalloc);
if (!ip_conntrack_hash) {
printk(KERN_ERR "Unable to create ip_conntrack_hash\n");
goto err_unreg_sockopt;
@@ -1461,9 +1521,6 @@ int __init ip_conntrack_init(void)
ip_ct_protos[IPPROTO_ICMP] = &ip_conntrack_protocol_icmp;
write_unlock_bh(&ip_conntrack_lock);
- for (i = 0; i < ip_conntrack_htable_size; i++)
- INIT_LIST_HEAD(&ip_conntrack_hash[i]);
-
/* For use by ipt_REJECT */
ip_ct_attach = ip_conntrack_attach;
@@ -1478,7 +1535,8 @@ int __init ip_conntrack_init(void)
err_free_conntrack_slab:
kmem_cache_destroy(ip_conntrack_cachep);
err_free_hash:
- free_conntrack_hash();
+ free_conntrack_hash(ip_conntrack_hash, ip_conntrack_vmalloc,
+ ip_conntrack_htable_size);
err_unreg_sockopt:
nf_unregister_sockopt(&so_getorigdst);
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index f7943ba1f43..a65e508fbd4 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -90,9 +90,7 @@ fold_field(void *mib[], int offt)
unsigned long res = 0;
int i;
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i))
- continue;
+ for_each_cpu(i) {
res += *(((unsigned long *) per_cpu_ptr(mib[0], i)) + offt);
res += *(((unsigned long *) per_cpu_ptr(mib[1], i)) + offt);
}
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index b7185fb3377..23e540365a1 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -700,10 +700,7 @@ int __init icmpv6_init(struct net_proto_family *ops)
struct sock *sk;
int err, i, j;
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i))
- continue;
-
+ for_each_cpu(i) {
err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6,
&per_cpu(__icmpv6_socket, i));
if (err < 0) {
@@ -749,9 +746,7 @@ void icmpv6_cleanup(void)
{
int i;
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i))
- continue;
+ for_each_cpu(i) {
sock_release(per_cpu(__icmpv6_socket, i));
}
inet6_del_protocol(&icmpv6_protocol, IPPROTO_ICMPV6);
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 334a5967831..50a13e75d70 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -140,9 +140,7 @@ fold_field(void *mib[], int offt)
unsigned long res = 0;
int i;
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i))
- continue;
+ for_each_cpu(i) {
res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
}
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 678c3f2c0d0..5ca283537bc 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -740,11 +740,8 @@ int netlink_attachskb(struct sock *sk, struct sk_buff *skb, int nonblock, long t
int netlink_sendskb(struct sock *sk, struct sk_buff *skb, int protocol)
{
- struct netlink_sock *nlk;
int len = skb->len;
- nlk = nlk_sk(sk);
-
skb_queue_tail(&sk->sk_receive_queue, skb);
sk->sk_data_ready(sk, len);
sock_put(sk);
@@ -827,7 +824,7 @@ struct netlink_broadcast_data {
int failure;
int congested;
int delivered;
- unsigned int allocation;
+ gfp_t allocation;
struct sk_buff *skb, *skb2;
};
diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c
index e556d92c0bc..b18fe504301 100644
--- a/net/rose/rose_route.c
+++ b/net/rose/rose_route.c
@@ -727,7 +727,7 @@ int rose_rt_ioctl(unsigned int cmd, void __user *arg)
}
if (rose_route.mask > 10) /* Mask can't be more than 10 digits */
return -EINVAL;
- if (rose_route.ndigis > 8) /* No more than 8 digipeats */
+ if (rose_route.ndigis > AX25_MAX_DIGIS)
return -EINVAL;
err = rose_add_node(&rose_route, dev);
dev_put(dev);
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index b74f7772b57..6e4dc28874d 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -69,9 +69,7 @@ fold_field(void *mib[], int nr)
unsigned long res = 0;
int i;
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i))
- continue;
+ for_each_cpu(i) {
res +=
*((unsigned long *) (((void *) per_cpu_ptr(mib[0], i)) +
sizeof (unsigned long) * nr));
diff --git a/net/sunrpc/Makefile b/net/sunrpc/Makefile
index 46a2ce00a29..cdcab9ca4c6 100644
--- a/net/sunrpc/Makefile
+++ b/net/sunrpc/Makefile
@@ -6,7 +6,7 @@
obj-$(CONFIG_SUNRPC) += sunrpc.o
obj-$(CONFIG_SUNRPC_GSS) += auth_gss/
-sunrpc-y := clnt.o xprt.o sched.o \
+sunrpc-y := clnt.o xprt.o socklib.o xprtsock.o sched.o \
auth.o auth_null.o auth_unix.o \
svc.o svcsock.o svcauth.o svcauth_unix.o \
pmap_clnt.o timer.o xdr.o \
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 505e2d4b3d6..a415d99c394 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -11,7 +11,6 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/errno.h>
-#include <linux/socket.h>
#include <linux/sunrpc/clnt.h>
#include <linux/spinlock.h>
diff --git a/net/sunrpc/auth_gss/Makefile b/net/sunrpc/auth_gss/Makefile
index fe1b874084b..f3431a7e33d 100644
--- a/net/sunrpc/auth_gss/Makefile
+++ b/net/sunrpc/auth_gss/Makefile
@@ -10,7 +10,7 @@ auth_rpcgss-objs := auth_gss.o gss_generic_token.o \
obj-$(CONFIG_RPCSEC_GSS_KRB5) += rpcsec_gss_krb5.o
rpcsec_gss_krb5-objs := gss_krb5_mech.o gss_krb5_seal.o gss_krb5_unseal.o \
- gss_krb5_seqnum.o
+ gss_krb5_seqnum.o gss_krb5_wrap.o
obj-$(CONFIG_RPCSEC_GSS_SPKM3) += rpcsec_gss_spkm3.o
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 2f7b867161d..f44f46f1d8e 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -42,9 +42,8 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/slab.h>
-#include <linux/socket.h>
-#include <linux/in.h>
#include <linux/sched.h>
+#include <linux/pagemap.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/auth.h>
#include <linux/sunrpc/auth_gss.h>
@@ -846,10 +845,8 @@ gss_marshal(struct rpc_task *task, u32 *p)
/* We compute the checksum for the verifier over the xdr-encoded bytes
* starting with the xid and ending at the end of the credential: */
- iov.iov_base = req->rq_snd_buf.head[0].iov_base;
- if (task->tk_client->cl_xprt->stream)
- /* See clnt.c:call_header() */
- iov.iov_base += 4;
+ iov.iov_base = xprt_skip_transport_header(task->tk_xprt,
+ req->rq_snd_buf.head[0].iov_base);
iov.iov_len = (u8 *)p - (u8 *)iov.iov_base;
xdr_buf_from_iov(&iov, &verf_buf);
@@ -857,9 +854,7 @@ gss_marshal(struct rpc_task *task, u32 *p)
*p++ = htonl(RPC_AUTH_GSS);
mic.data = (u8 *)(p + 1);
- maj_stat = gss_get_mic(ctx->gc_gss_ctx,
- GSS_C_QOP_DEFAULT,
- &verf_buf, &mic);
+ maj_stat = gss_get_mic(ctx->gc_gss_ctx, &verf_buf, &mic);
if (maj_stat == GSS_S_CONTEXT_EXPIRED) {
cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
} else if (maj_stat != 0) {
@@ -890,10 +885,8 @@ static u32 *
gss_validate(struct rpc_task *task, u32 *p)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
- struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
- gc_base);
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
- u32 seq, qop_state;
+ u32 seq;
struct kvec iov;
struct xdr_buf verf_buf;
struct xdr_netobj mic;
@@ -914,23 +907,14 @@ gss_validate(struct rpc_task *task, u32 *p)
mic.data = (u8 *)p;
mic.len = len;
- maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &verf_buf, &mic, &qop_state);
+ maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &verf_buf, &mic);
if (maj_stat == GSS_S_CONTEXT_EXPIRED)
cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
if (maj_stat)
goto out_bad;
- switch (gss_cred->gc_service) {
- case RPC_GSS_SVC_NONE:
- /* verifier data, flavor, length: */
- task->tk_auth->au_rslack = XDR_QUADLEN(len) + 2;
- break;
- case RPC_GSS_SVC_INTEGRITY:
- /* verifier data, flavor, length, length, sequence number: */
- task->tk_auth->au_rslack = XDR_QUADLEN(len) + 4;
- break;
- case RPC_GSS_SVC_PRIVACY:
- goto out_bad;
- }
+ /* We leave it to unwrap to calculate au_rslack. For now we just
+ * calculate the length of the verifier: */
+ task->tk_auth->au_verfsize = XDR_QUADLEN(len) + 2;
gss_put_ctx(ctx);
dprintk("RPC: %4u GSS gss_validate: gss_verify_mic succeeded.\n",
task->tk_pid);
@@ -975,8 +959,7 @@ gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
p = iov->iov_base + iov->iov_len;
mic.data = (u8 *)(p + 1);
- maj_stat = gss_get_mic(ctx->gc_gss_ctx,
- GSS_C_QOP_DEFAULT, &integ_buf, &mic);
+ maj_stat = gss_get_mic(ctx->gc_gss_ctx, &integ_buf, &mic);
status = -EIO; /* XXX? */
if (maj_stat == GSS_S_CONTEXT_EXPIRED)
cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
@@ -990,6 +973,113 @@ gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
return 0;
}
+static void
+priv_release_snd_buf(struct rpc_rqst *rqstp)
+{
+ int i;
+
+ for (i=0; i < rqstp->rq_enc_pages_num; i++)
+ __free_page(rqstp->rq_enc_pages[i]);
+ kfree(rqstp->rq_enc_pages);
+}
+
+static int
+alloc_enc_pages(struct rpc_rqst *rqstp)
+{
+ struct xdr_buf *snd_buf = &rqstp->rq_snd_buf;
+ int first, last, i;
+
+ if (snd_buf->page_len == 0) {
+ rqstp->rq_enc_pages_num = 0;
+ return 0;
+ }
+
+ first = snd_buf->page_base >> PAGE_CACHE_SHIFT;
+ last = (snd_buf->page_base + snd_buf->page_len - 1) >> PAGE_CACHE_SHIFT;
+ rqstp->rq_enc_pages_num = last - first + 1 + 1;
+ rqstp->rq_enc_pages
+ = kmalloc(rqstp->rq_enc_pages_num * sizeof(struct page *),
+ GFP_NOFS);
+ if (!rqstp->rq_enc_pages)
+ goto out;
+ for (i=0; i < rqstp->rq_enc_pages_num; i++) {
+ rqstp->rq_enc_pages[i] = alloc_page(GFP_NOFS);
+ if (rqstp->rq_enc_pages[i] == NULL)
+ goto out_free;
+ }
+ rqstp->rq_release_snd_buf = priv_release_snd_buf;
+ return 0;
+out_free:
+ for (i--; i >= 0; i--) {
+ __free_page(rqstp->rq_enc_pages[i]);
+ }
+out:
+ return -EAGAIN;
+}
+
+static inline int
+gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
+ kxdrproc_t encode, struct rpc_rqst *rqstp, u32 *p, void *obj)
+{
+ struct xdr_buf *snd_buf = &rqstp->rq_snd_buf;
+ u32 offset;
+ u32 maj_stat;
+ int status;
+ u32 *opaque_len;
+ struct page **inpages;
+ int first;
+ int pad;
+ struct kvec *iov;
+ char *tmp;
+
+ opaque_len = p++;
+ offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base;
+ *p++ = htonl(rqstp->rq_seqno);
+
+ status = encode(rqstp, p, obj);
+ if (status)
+ return status;
+
+ status = alloc_enc_pages(rqstp);
+ if (status)
+ return status;
+ first = snd_buf->page_base >> PAGE_CACHE_SHIFT;
+ inpages = snd_buf->pages + first;
+ snd_buf->pages = rqstp->rq_enc_pages;
+ snd_buf->page_base -= first << PAGE_CACHE_SHIFT;
+ /* Give the tail its own page, in case we need extra space in the
+ * head when wrapping: */
+ if (snd_buf->page_len || snd_buf->tail[0].iov_len) {
+ tmp = page_address(rqstp->rq_enc_pages[rqstp->rq_enc_pages_num - 1]);
+ memcpy(tmp, snd_buf->tail[0].iov_base, snd_buf->tail[0].iov_len);
+ snd_buf->tail[0].iov_base = tmp;
+ }
+ maj_stat = gss_wrap(ctx->gc_gss_ctx, offset, snd_buf, inpages);
+ /* RPC_SLACK_SPACE should prevent this ever happening: */
+ BUG_ON(snd_buf->len > snd_buf->buflen);
+ status = -EIO;
+ /* We're assuming that when GSS_S_CONTEXT_EXPIRED, the encryption was
+ * done anyway, so it's safe to put the request on the wire: */
+ if (maj_stat == GSS_S_CONTEXT_EXPIRED)
+ cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
+ else if (maj_stat)
+ return status;
+
+ *opaque_len = htonl(snd_buf->len - offset);
+ /* guess whether we're in the head or the tail: */
+ if (snd_buf->page_len || snd_buf->tail[0].iov_len)
+ iov = snd_buf->tail;
+ else
+ iov = snd_buf->head;
+ p = iov->iov_base + iov->iov_len;
+ pad = 3 - ((snd_buf->len - offset - 1) & 3);
+ memset(p, 0, pad);
+ iov->iov_len += pad;
+ snd_buf->len += pad;
+
+ return 0;
+}
+
static int
gss_wrap_req(struct rpc_task *task,
kxdrproc_t encode, void *rqstp, u32 *p, void *obj)
@@ -1017,6 +1107,8 @@ gss_wrap_req(struct rpc_task *task,
rqstp, p, obj);
break;
case RPC_GSS_SVC_PRIVACY:
+ status = gss_wrap_req_priv(cred, ctx, encode,
+ rqstp, p, obj);
break;
}
out:
@@ -1054,8 +1146,7 @@ gss_unwrap_resp_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
if (xdr_buf_read_netobj(rcv_buf, &mic, mic_offset))
return status;
- maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &integ_buf,
- &mic, NULL);
+ maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &integ_buf, &mic);
if (maj_stat == GSS_S_CONTEXT_EXPIRED)
cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
if (maj_stat != GSS_S_COMPLETE)
@@ -1063,6 +1154,35 @@ gss_unwrap_resp_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
return 0;
}
+static inline int
+gss_unwrap_resp_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
+ struct rpc_rqst *rqstp, u32 **p)
+{
+ struct xdr_buf *rcv_buf = &rqstp->rq_rcv_buf;
+ u32 offset;
+ u32 opaque_len;
+ u32 maj_stat;
+ int status = -EIO;
+
+ opaque_len = ntohl(*(*p)++);
+ offset = (u8 *)(*p) - (u8 *)rcv_buf->head[0].iov_base;
+ if (offset + opaque_len > rcv_buf->len)
+ return status;
+ /* remove padding: */
+ rcv_buf->len = offset + opaque_len;
+
+ maj_stat = gss_unwrap(ctx->gc_gss_ctx, offset, rcv_buf);
+ if (maj_stat == GSS_S_CONTEXT_EXPIRED)
+ cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE;
+ if (maj_stat != GSS_S_COMPLETE)
+ return status;
+ if (ntohl(*(*p)++) != rqstp->rq_seqno)
+ return status;
+
+ return 0;
+}
+
+
static int
gss_unwrap_resp(struct rpc_task *task,
kxdrproc_t decode, void *rqstp, u32 *p, void *obj)
@@ -1071,6 +1191,9 @@ gss_unwrap_resp(struct rpc_task *task,
struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
gc_base);
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
+ u32 *savedp = p;
+ struct kvec *head = ((struct rpc_rqst *)rqstp)->rq_rcv_buf.head;
+ int savedlen = head->iov_len;
int status = -EIO;
if (ctx->gc_proc != RPC_GSS_PROC_DATA)
@@ -1084,8 +1207,14 @@ gss_unwrap_resp(struct rpc_task *task,
goto out;
break;
case RPC_GSS_SVC_PRIVACY:
+ status = gss_unwrap_resp_priv(cred, ctx, rqstp, &p);
+ if (status)
+ goto out;
break;
}
+ /* take into account extra slack for integrity and privacy cases: */
+ task->tk_auth->au_rslack = task->tk_auth->au_verfsize + (p - savedp)
+ + (savedlen - head->iov_len);
out_decode:
status = decode(rqstp, p, obj);
out:
diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index ee6ae74cd1b..3f3d5437f02 100644
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -139,17 +139,91 @@ buf_to_sg(struct scatterlist *sg, char *ptr, int len) {
sg->length = len;
}
+static int
+process_xdr_buf(struct xdr_buf *buf, int offset, int len,
+ int (*actor)(struct scatterlist *, void *), void *data)
+{
+ int i, page_len, thislen, page_offset, ret = 0;
+ struct scatterlist sg[1];
+
+ if (offset >= buf->head[0].iov_len) {
+ offset -= buf->head[0].iov_len;
+ } else {
+ thislen = buf->head[0].iov_len - offset;
+ if (thislen > len)
+ thislen = len;
+ buf_to_sg(sg, buf->head[0].iov_base + offset, thislen);
+ ret = actor(sg, data);
+ if (ret)
+ goto out;
+ offset = 0;
+ len -= thislen;
+ }
+ if (len == 0)
+ goto out;
+
+ if (offset >= buf->page_len) {
+ offset -= buf->page_len;
+ } else {
+ page_len = buf->page_len - offset;
+ if (page_len > len)
+ page_len = len;
+ len -= page_len;
+ page_offset = (offset + buf->page_base) & (PAGE_CACHE_SIZE - 1);
+ i = (offset + buf->page_base) >> PAGE_CACHE_SHIFT;
+ thislen = PAGE_CACHE_SIZE - page_offset;
+ do {
+ if (thislen > page_len)
+ thislen = page_len;
+ sg->page = buf->pages[i];
+ sg->offset = page_offset;
+ sg->length = thislen;
+ ret = actor(sg, data);
+ if (ret)
+ goto out;
+ page_len -= thislen;
+ i++;
+ page_offset = 0;
+ thislen = PAGE_CACHE_SIZE;
+ } while (page_len != 0);
+ offset = 0;
+ }
+ if (len == 0)
+ goto out;
+
+ if (offset < buf->tail[0].iov_len) {
+ thislen = buf->tail[0].iov_len - offset;
+ if (thislen > len)
+ thislen = len;
+ buf_to_sg(sg, buf->tail[0].iov_base + offset, thislen);
+ ret = actor(sg, data);
+ len -= thislen;
+ }
+ if (len != 0)
+ ret = -EINVAL;
+out:
+ return ret;
+}
+
+static int
+checksummer(struct scatterlist *sg, void *data)
+{
+ struct crypto_tfm *tfm = (struct crypto_tfm *)data;
+
+ crypto_digest_update(tfm, sg, 1);
+
+ return 0;
+}
+
/* checksum the plaintext data and hdrlen bytes of the token header */
s32
make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
- struct xdr_netobj *cksum)
+ int body_offset, struct xdr_netobj *cksum)
{
char *cksumname;
struct crypto_tfm *tfm = NULL; /* XXX add to ctx? */
struct scatterlist sg[1];
u32 code = GSS_S_FAILURE;
- int len, thislen, offset;
- int i;
switch (cksumtype) {
case CKSUMTYPE_RSA_MD5:
@@ -169,33 +243,8 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
crypto_digest_init(tfm);
buf_to_sg(sg, header, hdrlen);
crypto_digest_update(tfm, sg, 1);
- if (body->head[0].iov_len) {
- buf_to_sg(sg, body->head[0].iov_base, body->head[0].iov_len);
- crypto_digest_update(tfm, sg, 1);
- }
-
- len = body->page_len;
- if (len != 0) {
- offset = body->page_base & (PAGE_CACHE_SIZE - 1);
- i = body->page_base >> PAGE_CACHE_SHIFT;
- thislen = PAGE_CACHE_SIZE - offset;
- do {
- if (thislen > len)
- thislen = len;
- sg->page = body->pages[i];
- sg->offset = offset;
- sg->length = thislen;
- crypto_digest_update(tfm, sg, 1);
- len -= thislen;
- i++;
- offset = 0;
- thislen = PAGE_CACHE_SIZE;
- } while(len != 0);
- }
- if (body->tail[0].iov_len) {
- buf_to_sg(sg, body->tail[0].iov_base, body->tail[0].iov_len);
- crypto_digest_update(tfm, sg, 1);
- }
+ process_xdr_buf(body, body_offset, body->len - body_offset,
+ checksummer, tfm);
crypto_digest_final(tfm, cksum->data);
code = 0;
out:
@@ -204,3 +253,154 @@ out:
}
EXPORT_SYMBOL(make_checksum);
+
+struct encryptor_desc {
+ u8 iv[8]; /* XXX hard-coded blocksize */
+ struct crypto_tfm *tfm;
+ int pos;
+ struct xdr_buf *outbuf;
+ struct page **pages;
+ struct scatterlist infrags[4];
+ struct scatterlist outfrags[4];
+ int fragno;
+ int fraglen;
+};
+
+static int
+encryptor(struct scatterlist *sg, void *data)
+{
+ struct encryptor_desc *desc = data;
+ struct xdr_buf *outbuf = desc->outbuf;
+ struct page *in_page;
+ int thislen = desc->fraglen + sg->length;
+ int fraglen, ret;
+ int page_pos;
+
+ /* Worst case is 4 fragments: head, end of page 1, start
+ * of page 2, tail. Anything more is a bug. */
+ BUG_ON(desc->fragno > 3);
+ desc->infrags[desc->fragno] = *sg;
+ desc->outfrags[desc->fragno] = *sg;
+
+ page_pos = desc->pos - outbuf->head[0].iov_len;
+ if (page_pos >= 0 && page_pos < outbuf->page_len) {
+ /* pages are not in place: */
+ int i = (page_pos + outbuf->page_base) >> PAGE_CACHE_SHIFT;
+ in_page = desc->pages[i];
+ } else {
+ in_page = sg->page;
+ }
+ desc->infrags[desc->fragno].page = in_page;
+ desc->fragno++;
+ desc->fraglen += sg->length;
+ desc->pos += sg->length;
+
+ fraglen = thislen & 7; /* XXX hardcoded blocksize */
+ thislen -= fraglen;
+
+ if (thislen == 0)
+ return 0;
+
+ ret = crypto_cipher_encrypt_iv(desc->tfm, desc->outfrags, desc->infrags,
+ thislen, desc->iv);
+ if (ret)
+ return ret;
+ if (fraglen) {
+ desc->outfrags[0].page = sg->page;
+ desc->outfrags[0].offset = sg->offset + sg->length - fraglen;
+ desc->outfrags[0].length = fraglen;
+ desc->infrags[0] = desc->outfrags[0];
+ desc->infrags[0].page = in_page;
+ desc->fragno = 1;
+ desc->fraglen = fraglen;
+ } else {
+ desc->fragno = 0;
+ desc->fraglen = 0;
+ }
+ return 0;
+}
+
+int
+gss_encrypt_xdr_buf(struct crypto_tfm *tfm, struct xdr_buf *buf, int offset,
+ struct page **pages)
+{
+ int ret;
+ struct encryptor_desc desc;
+
+ BUG_ON((buf->len - offset) % crypto_tfm_alg_blocksize(tfm) != 0);
+
+ memset(desc.iv, 0, sizeof(desc.iv));
+ desc.tfm = tfm;
+ desc.pos = offset;
+ desc.outbuf = buf;
+ desc.pages = pages;
+ desc.fragno = 0;
+ desc.fraglen = 0;
+
+ ret = process_xdr_buf(buf, offset, buf->len - offset, encryptor, &desc);
+ return ret;
+}
+
+EXPORT_SYMBOL(gss_encrypt_xdr_buf);
+
+struct decryptor_desc {
+ u8 iv[8]; /* XXX hard-coded blocksize */
+ struct crypto_tfm *tfm;
+ struct scatterlist frags[4];
+ int fragno;
+ int fraglen;
+};
+
+static int
+decryptor(struct scatterlist *sg, void *data)
+{
+ struct decryptor_desc *desc = data;
+ int thislen = desc->fraglen + sg->length;
+ int fraglen, ret;
+
+ /* Worst case is 4 fragments: head, end of page 1, start
+ * of page 2, tail. Anything more is a bug. */
+ BUG_ON(desc->fragno > 3);
+ desc->frags[desc->fragno] = *sg;
+ desc->fragno++;
+ desc->fraglen += sg->length;
+
+ fraglen = thislen & 7; /* XXX hardcoded blocksize */
+ thislen -= fraglen;
+
+ if (thislen == 0)
+ return 0;
+
+ ret = crypto_cipher_decrypt_iv(desc->tfm, desc->frags, desc->frags,
+ thislen, desc->iv);
+ if (ret)
+ return ret;
+ if (fraglen) {
+ desc->frags[0].page = sg->page;
+ desc->frags[0].offset = sg->offset + sg->length - fraglen;
+ desc->frags[0].length = fraglen;
+ desc->fragno = 1;
+ desc->fraglen = fraglen;
+ } else {
+ desc->fragno = 0;
+ desc->fraglen = 0;
+ }
+ return 0;
+}
+
+int
+gss_decrypt_xdr_buf(struct crypto_tfm *tfm, struct xdr_buf *buf, int offset)
+{
+ struct decryptor_desc desc;
+
+ /* XXXJBF: */
+ BUG_ON((buf->len - offset) % crypto_tfm_alg_blocksize(tfm) != 0);
+
+ memset(desc.iv, 0, sizeof(desc.iv));
+ desc.tfm = tfm;
+ desc.fragno = 0;
+ desc.fraglen = 0;
+ return process_xdr_buf(buf, offset, buf->len - offset, decryptor, &desc);
+}
+
+EXPORT_SYMBOL(gss_decrypt_xdr_buf);
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 606a8a82caf..5f1f806a0b1 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -39,7 +39,6 @@
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/sunrpc/auth.h>
-#include <linux/in.h>
#include <linux/sunrpc/gss_krb5.h>
#include <linux/sunrpc/xdr.h>
#include <linux/crypto.h>
@@ -191,43 +190,12 @@ gss_delete_sec_context_kerberos(void *internal_ctx) {
kfree(kctx);
}
-static u32
-gss_verify_mic_kerberos(struct gss_ctx *ctx,
- struct xdr_buf *message,
- struct xdr_netobj *mic_token,
- u32 *qstate) {
- u32 maj_stat = 0;
- int qop_state;
- struct krb5_ctx *kctx = ctx->internal_ctx_id;
-
- maj_stat = krb5_read_token(kctx, mic_token, message, &qop_state,
- KG_TOK_MIC_MSG);
- if (!maj_stat && qop_state)
- *qstate = qop_state;
-
- dprintk("RPC: gss_verify_mic_kerberos returning %d\n", maj_stat);
- return maj_stat;
-}
-
-static u32
-gss_get_mic_kerberos(struct gss_ctx *ctx,
- u32 qop,
- struct xdr_buf *message,
- struct xdr_netobj *mic_token) {
- u32 err = 0;
- struct krb5_ctx *kctx = ctx->internal_ctx_id;
-
- err = krb5_make_token(kctx, qop, message, mic_token, KG_TOK_MIC_MSG);
-
- dprintk("RPC: gss_get_mic_kerberos returning %d\n",err);
-
- return err;
-}
-
static struct gss_api_ops gss_kerberos_ops = {
.gss_import_sec_context = gss_import_sec_context_kerberos,
.gss_get_mic = gss_get_mic_kerberos,
.gss_verify_mic = gss_verify_mic_kerberos,
+ .gss_wrap = gss_wrap_kerberos,
+ .gss_unwrap = gss_unwrap_kerberos,
.gss_delete_sec_context = gss_delete_sec_context_kerberos,
};
@@ -242,6 +210,11 @@ static struct pf_desc gss_kerberos_pfs[] = {
.service = RPC_GSS_SVC_INTEGRITY,
.name = "krb5i",
},
+ [2] = {
+ .pseudoflavor = RPC_AUTH_GSS_KRB5P,
+ .service = RPC_GSS_SVC_PRIVACY,
+ .name = "krb5p",
+ },
};
static struct gss_api_mech gss_kerberos_mech = {
diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c
index afeeb8715a7..13f8ae97945 100644
--- a/net/sunrpc/auth_gss/gss_krb5_seal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_seal.c
@@ -70,22 +70,13 @@
# define RPCDBG_FACILITY RPCDBG_AUTH
#endif
-static inline int
-gss_krb5_padding(int blocksize, int length) {
- /* Most of the code is block-size independent but in practice we
- * use only 8: */
- BUG_ON(blocksize != 8);
- return 8 - (length & 7);
-}
-
u32
-krb5_make_token(struct krb5_ctx *ctx, int qop_req,
- struct xdr_buf *text, struct xdr_netobj *token,
- int toktype)
+gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
+ struct xdr_netobj *token)
{
+ struct krb5_ctx *ctx = gss_ctx->internal_ctx_id;
s32 checksum_type;
struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
- int blocksize = 0, tmsglen;
unsigned char *ptr, *krb5_hdr, *msg_start;
s32 now;
@@ -93,9 +84,6 @@ krb5_make_token(struct krb5_ctx *ctx, int qop_req,
now = get_seconds();
- if (qop_req != 0)
- goto out_err;
-
switch (ctx->signalg) {
case SGN_ALG_DES_MAC_MD5:
checksum_type = CKSUMTYPE_RSA_MD5;
@@ -111,21 +99,13 @@ krb5_make_token(struct krb5_ctx *ctx, int qop_req,
goto out_err;
}
- if (toktype == KG_TOK_WRAP_MSG) {
- blocksize = crypto_tfm_alg_blocksize(ctx->enc);
- tmsglen = blocksize + text->len
- + gss_krb5_padding(blocksize, blocksize + text->len);
- } else {
- tmsglen = 0;
- }
-
- token->len = g_token_size(&ctx->mech_used, 22 + tmsglen);
+ token->len = g_token_size(&ctx->mech_used, 22);
ptr = token->data;
- g_make_token_header(&ctx->mech_used, 22 + tmsglen, &ptr);
+ g_make_token_header(&ctx->mech_used, 22, &ptr);
- *ptr++ = (unsigned char) ((toktype>>8)&0xff);
- *ptr++ = (unsigned char) (toktype&0xff);
+ *ptr++ = (unsigned char) ((KG_TOK_MIC_MSG>>8)&0xff);
+ *ptr++ = (unsigned char) (KG_TOK_MIC_MSG&0xff);
/* ptr now at byte 2 of header described in rfc 1964, section 1.2.1: */
krb5_hdr = ptr - 2;
@@ -133,17 +113,9 @@ krb5_make_token(struct krb5_ctx *ctx, int qop_req,
*(u16 *)(krb5_hdr + 2) = htons(ctx->signalg);
memset(krb5_hdr + 4, 0xff, 4);
- if (toktype == KG_TOK_WRAP_MSG)
- *(u16 *)(krb5_hdr + 4) = htons(ctx->sealalg);
- if (toktype == KG_TOK_WRAP_MSG) {
- /* XXX removing support for now */
- goto out_err;
- } else { /* Sign only. */
- if (make_checksum(checksum_type, krb5_hdr, 8, text,
- &md5cksum))
+ if (make_checksum(checksum_type, krb5_hdr, 8, text, 0, &md5cksum))
goto out_err;
- }
switch (ctx->signalg) {
case SGN_ALG_DES_MAC_MD5:
diff --git a/net/sunrpc/auth_gss/gss_krb5_unseal.c b/net/sunrpc/auth_gss/gss_krb5_unseal.c
index 8767fc53183..2030475d98e 100644
--- a/net/sunrpc/auth_gss/gss_krb5_unseal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_unseal.c
@@ -68,21 +68,14 @@
#endif
-/* message_buffer is an input if toktype is MIC and an output if it is WRAP:
- * If toktype is MIC: read_token is a mic token, and message_buffer is the
- * data that the mic was supposedly taken over.
- * If toktype is WRAP: read_token is a wrap token, and message_buffer is used
- * to return the decrypted data.
- */
+/* read_token is a mic token, and message_buffer is the data that the mic was
+ * supposedly taken over. */
-/* XXX will need to change prototype and/or just split into a separate function
- * when we add privacy (because read_token will be in pages too). */
u32
-krb5_read_token(struct krb5_ctx *ctx,
- struct xdr_netobj *read_token,
- struct xdr_buf *message_buffer,
- int *qop_state, int toktype)
+gss_verify_mic_kerberos(struct gss_ctx *gss_ctx,
+ struct xdr_buf *message_buffer, struct xdr_netobj *read_token)
{
+ struct krb5_ctx *ctx = gss_ctx->internal_ctx_id;
int signalg;
int sealalg;
s32 checksum_type;
@@ -100,16 +93,12 @@ krb5_read_token(struct krb5_ctx *ctx,
read_token->len))
goto out;
- if ((*ptr++ != ((toktype>>8)&0xff)) || (*ptr++ != (toktype&0xff)))
+ if ((*ptr++ != ((KG_TOK_MIC_MSG>>8)&0xff)) ||
+ (*ptr++ != ( KG_TOK_MIC_MSG &0xff)) )
goto out;
/* XXX sanity-check bodysize?? */
- if (toktype == KG_TOK_WRAP_MSG) {
- /* XXX gone */
- goto out;
- }
-
/* get the sign and seal algorithms */
signalg = ptr[0] + (ptr[1] << 8);
@@ -120,14 +109,7 @@ krb5_read_token(struct krb5_ctx *ctx,
if ((ptr[4] != 0xff) || (ptr[5] != 0xff))
goto out;
- if (((toktype != KG_TOK_WRAP_MSG) && (sealalg != 0xffff)) ||
- ((toktype == KG_TOK_WRAP_MSG) && (sealalg == 0xffff)))
- goto out;
-
- /* in the current spec, there is only one valid seal algorithm per
- key type, so a simple comparison is ok */
-
- if ((toktype == KG_TOK_WRAP_MSG) && !(sealalg == ctx->sealalg))
+ if (sealalg != 0xffff)
goto out;
/* there are several mappings of seal algorithms to sign algorithms,
@@ -154,7 +136,7 @@ krb5_read_token(struct krb5_ctx *ctx,
switch (signalg) {
case SGN_ALG_DES_MAC_MD5:
ret = make_checksum(checksum_type, ptr - 2, 8,
- message_buffer, &md5cksum);
+ message_buffer, 0, &md5cksum);
if (ret)
goto out;
@@ -175,9 +157,6 @@ krb5_read_token(struct krb5_ctx *ctx,
/* it got through unscathed. Make sure the context is unexpired */
- if (qop_state)
- *qop_state = GSS_C_QOP_DEFAULT;
-
now = get_seconds();
ret = GSS_S_CONTEXT_EXPIRED;
diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
new file mode 100644
index 00000000000..af777cf9f25
--- /dev/null
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -0,0 +1,363 @@
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/sunrpc/gss_krb5.h>
+#include <linux/random.h>
+#include <linux/pagemap.h>
+#include <asm/scatterlist.h>
+#include <linux/crypto.h>
+
+#ifdef RPC_DEBUG
+# define RPCDBG_FACILITY RPCDBG_AUTH
+#endif
+
+static inline int
+gss_krb5_padding(int blocksize, int length)
+{
+ /* Most of the code is block-size independent but currently we
+ * use only 8: */
+ BUG_ON(blocksize != 8);
+ return 8 - (length & 7);
+}
+
+static inline void
+gss_krb5_add_padding(struct xdr_buf *buf, int offset, int blocksize)
+{
+ int padding = gss_krb5_padding(blocksize, buf->len - offset);
+ char *p;
+ struct kvec *iov;
+
+ if (buf->page_len || buf->tail[0].iov_len)
+ iov = &buf->tail[0];
+ else
+ iov = &buf->head[0];
+ p = iov->iov_base + iov->iov_len;
+ iov->iov_len += padding;
+ buf->len += padding;
+ memset(p, padding, padding);
+}
+
+static inline int
+gss_krb5_remove_padding(struct xdr_buf *buf, int blocksize)
+{
+ u8 *ptr;
+ u8 pad;
+ int len = buf->len;
+
+ if (len <= buf->head[0].iov_len) {
+ pad = *(u8 *)(buf->head[0].iov_base + len - 1);
+ if (pad > buf->head[0].iov_len)
+ return -EINVAL;
+ buf->head[0].iov_len -= pad;
+ goto out;
+ } else
+ len -= buf->head[0].iov_len;
+ if (len <= buf->page_len) {
+ int last = (buf->page_base + len - 1)
+ >>PAGE_CACHE_SHIFT;
+ int offset = (buf->page_base + len - 1)
+ & (PAGE_CACHE_SIZE - 1);
+ ptr = kmap_atomic(buf->pages[last], KM_SKB_SUNRPC_DATA);
+ pad = *(ptr + offset);
+ kunmap_atomic(ptr, KM_SKB_SUNRPC_DATA);
+ goto out;
+ } else
+ len -= buf->page_len;
+ BUG_ON(len > buf->tail[0].iov_len);
+ pad = *(u8 *)(buf->tail[0].iov_base + len - 1);
+out:
+ /* XXX: NOTE: we do not adjust the page lengths--they represent
+ * a range of data in the real filesystem page cache, and we need
+ * to know that range so the xdr code can properly place read data.
+ * However adjusting the head length, as we do above, is harmless.
+ * In the case of a request that fits into a single page, the server
+ * also uses length and head length together to determine the original
+ * start of the request to copy the request for deferal; so it's
+ * easier on the server if we adjust head and tail length in tandem.
+ * It's not really a problem that we don't fool with the page and
+ * tail lengths, though--at worst badly formed xdr might lead the
+ * server to attempt to parse the padding.
+ * XXX: Document all these weird requirements for gss mechanism
+ * wrap/unwrap functions. */
+ if (pad > blocksize)
+ return -EINVAL;
+ if (buf->len > pad)
+ buf->len -= pad;
+ else
+ return -EINVAL;
+ return 0;
+}
+
+static inline void
+make_confounder(char *p, int blocksize)
+{
+ static u64 i = 0;
+ u64 *q = (u64 *)p;
+
+ /* rfc1964 claims this should be "random". But all that's really
+ * necessary is that it be unique. And not even that is necessary in
+ * our case since our "gssapi" implementation exists only to support
+ * rpcsec_gss, so we know that the only buffers we will ever encrypt
+ * already begin with a unique sequence number. Just to hedge my bets
+ * I'll make a half-hearted attempt at something unique, but ensuring
+ * uniqueness would mean worrying about atomicity and rollover, and I
+ * don't care enough. */
+
+ BUG_ON(blocksize != 8);
+ *q = i++;
+}
+
+/* Assumptions: the head and tail of inbuf are ours to play with.
+ * The pages, however, may be real pages in the page cache and we replace
+ * them with scratch pages from **pages before writing to them. */
+/* XXX: obviously the above should be documentation of wrap interface,
+ * and shouldn't be in this kerberos-specific file. */
+
+/* XXX factor out common code with seal/unseal. */
+
+u32
+gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
+ struct xdr_buf *buf, struct page **pages)
+{
+ struct krb5_ctx *kctx = ctx->internal_ctx_id;
+ s32 checksum_type;
+ struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ int blocksize = 0, plainlen;
+ unsigned char *ptr, *krb5_hdr, *msg_start;
+ s32 now;
+ int headlen;
+ struct page **tmp_pages;
+
+ dprintk("RPC: gss_wrap_kerberos\n");
+
+ now = get_seconds();
+
+ switch (kctx->signalg) {
+ case SGN_ALG_DES_MAC_MD5:
+ checksum_type = CKSUMTYPE_RSA_MD5;
+ break;
+ default:
+ dprintk("RPC: gss_krb5_seal: kctx->signalg %d not"
+ " supported\n", kctx->signalg);
+ goto out_err;
+ }
+ if (kctx->sealalg != SEAL_ALG_NONE && kctx->sealalg != SEAL_ALG_DES) {
+ dprintk("RPC: gss_krb5_seal: kctx->sealalg %d not supported\n",
+ kctx->sealalg);
+ goto out_err;
+ }
+
+ blocksize = crypto_tfm_alg_blocksize(kctx->enc);
+ gss_krb5_add_padding(buf, offset, blocksize);
+ BUG_ON((buf->len - offset) % blocksize);
+ plainlen = blocksize + buf->len - offset;
+
+ headlen = g_token_size(&kctx->mech_used, 22 + plainlen) -
+ (buf->len - offset);
+
+ ptr = buf->head[0].iov_base + offset;
+ /* shift data to make room for header. */
+ /* XXX Would be cleverer to encrypt while copying. */
+ /* XXX bounds checking, slack, etc. */
+ memmove(ptr + headlen, ptr, buf->head[0].iov_len - offset);
+ buf->head[0].iov_len += headlen;
+ buf->len += headlen;
+ BUG_ON((buf->len - offset - headlen) % blocksize);
+
+ g_make_token_header(&kctx->mech_used, 22 + plainlen, &ptr);
+
+
+ *ptr++ = (unsigned char) ((KG_TOK_WRAP_MSG>>8)&0xff);
+ *ptr++ = (unsigned char) (KG_TOK_WRAP_MSG&0xff);
+
+ /* ptr now at byte 2 of header described in rfc 1964, section 1.2.1: */
+ krb5_hdr = ptr - 2;
+ msg_start = krb5_hdr + 24;
+ /* XXXJBF: */ BUG_ON(buf->head[0].iov_base + offset + headlen != msg_start + blocksize);
+
+ *(u16 *)(krb5_hdr + 2) = htons(kctx->signalg);
+ memset(krb5_hdr + 4, 0xff, 4);
+ *(u16 *)(krb5_hdr + 4) = htons(kctx->sealalg);
+
+ make_confounder(msg_start, blocksize);
+
+ /* XXXJBF: UGH!: */
+ tmp_pages = buf->pages;
+ buf->pages = pages;
+ if (make_checksum(checksum_type, krb5_hdr, 8, buf,
+ offset + headlen - blocksize, &md5cksum))
+ goto out_err;
+ buf->pages = tmp_pages;
+
+ switch (kctx->signalg) {
+ case SGN_ALG_DES_MAC_MD5:
+ if (krb5_encrypt(kctx->seq, NULL, md5cksum.data,
+ md5cksum.data, md5cksum.len))
+ goto out_err;
+ memcpy(krb5_hdr + 16,
+ md5cksum.data + md5cksum.len - KRB5_CKSUM_LENGTH,
+ KRB5_CKSUM_LENGTH);
+
+ dprintk("RPC: make_seal_token: cksum data: \n");
+ print_hexl((u32 *) (krb5_hdr + 16), KRB5_CKSUM_LENGTH, 0);
+ break;
+ default:
+ BUG();
+ }
+
+ kfree(md5cksum.data);
+
+ /* XXX would probably be more efficient to compute checksum
+ * and encrypt at the same time: */
+ if ((krb5_make_seq_num(kctx->seq, kctx->initiate ? 0 : 0xff,
+ kctx->seq_send, krb5_hdr + 16, krb5_hdr + 8)))
+ goto out_err;
+
+ if (gss_encrypt_xdr_buf(kctx->enc, buf, offset + headlen - blocksize,
+ pages))
+ goto out_err;
+
+ kctx->seq_send++;
+
+ return ((kctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE);
+out_err:
+ if (md5cksum.data) kfree(md5cksum.data);
+ return GSS_S_FAILURE;
+}
+
+u32
+gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
+{
+ struct krb5_ctx *kctx = ctx->internal_ctx_id;
+ int signalg;
+ int sealalg;
+ s32 checksum_type;
+ struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ s32 now;
+ int direction;
+ s32 seqnum;
+ unsigned char *ptr;
+ int bodysize;
+ u32 ret = GSS_S_DEFECTIVE_TOKEN;
+ void *data_start, *orig_start;
+ int data_len;
+ int blocksize;
+
+ dprintk("RPC: gss_unwrap_kerberos\n");
+
+ ptr = (u8 *)buf->head[0].iov_base + offset;
+ if (g_verify_token_header(&kctx->mech_used, &bodysize, &ptr,
+ buf->len - offset))
+ goto out;
+
+ if ((*ptr++ != ((KG_TOK_WRAP_MSG>>8)&0xff)) ||
+ (*ptr++ != (KG_TOK_WRAP_MSG &0xff)) )
+ goto out;
+
+ /* XXX sanity-check bodysize?? */
+
+ /* get the sign and seal algorithms */
+
+ signalg = ptr[0] + (ptr[1] << 8);
+ sealalg = ptr[2] + (ptr[3] << 8);
+
+ /* Sanity checks */
+
+ if ((ptr[4] != 0xff) || (ptr[5] != 0xff))
+ goto out;
+
+ if (sealalg == 0xffff)
+ goto out;
+
+ /* in the current spec, there is only one valid seal algorithm per
+ key type, so a simple comparison is ok */
+
+ if (sealalg != kctx->sealalg)
+ goto out;
+
+ /* there are several mappings of seal algorithms to sign algorithms,
+ but few enough that we can try them all. */
+
+ if ((kctx->sealalg == SEAL_ALG_NONE && signalg > 1) ||
+ (kctx->sealalg == SEAL_ALG_1 && signalg != SGN_ALG_3) ||
+ (kctx->sealalg == SEAL_ALG_DES3KD &&
+ signalg != SGN_ALG_HMAC_SHA1_DES3_KD))
+ goto out;
+
+ if (gss_decrypt_xdr_buf(kctx->enc, buf,
+ ptr + 22 - (unsigned char *)buf->head[0].iov_base))
+ goto out;
+
+ /* compute the checksum of the message */
+
+ /* initialize the the cksum */
+ switch (signalg) {
+ case SGN_ALG_DES_MAC_MD5:
+ checksum_type = CKSUMTYPE_RSA_MD5;
+ break;
+ default:
+ ret = GSS_S_DEFECTIVE_TOKEN;
+ goto out;
+ }
+
+ switch (signalg) {
+ case SGN_ALG_DES_MAC_MD5:
+ ret = make_checksum(checksum_type, ptr - 2, 8, buf,
+ ptr + 22 - (unsigned char *)buf->head[0].iov_base, &md5cksum);
+ if (ret)
+ goto out;
+
+ ret = krb5_encrypt(kctx->seq, NULL, md5cksum.data,
+ md5cksum.data, md5cksum.len);
+ if (ret)
+ goto out;
+
+ if (memcmp(md5cksum.data + 8, ptr + 14, 8)) {
+ ret = GSS_S_BAD_SIG;
+ goto out;
+ }
+ break;
+ default:
+ ret = GSS_S_DEFECTIVE_TOKEN;
+ goto out;
+ }
+
+ /* it got through unscathed. Make sure the context is unexpired */
+
+ now = get_seconds();
+
+ ret = GSS_S_CONTEXT_EXPIRED;
+ if (now > kctx->endtime)
+ goto out;
+
+ /* do sequencing checks */
+
+ ret = GSS_S_BAD_SIG;
+ if ((ret = krb5_get_seq_num(kctx->seq, ptr + 14, ptr + 6, &direction,
+ &seqnum)))
+ goto out;
+
+ if ((kctx->initiate && direction != 0xff) ||
+ (!kctx->initiate && direction != 0))
+ goto out;
+
+ /* Copy the data back to the right position. XXX: Would probably be
+ * better to copy and encrypt at the same time. */
+
+ blocksize = crypto_tfm_alg_blocksize(kctx->enc);
+ data_start = ptr + 22 + blocksize;
+ orig_start = buf->head[0].iov_base + offset;
+ data_len = (buf->head[0].iov_base + buf->head[0].iov_len) - data_start;
+ memmove(orig_start, data_start, data_len);
+ buf->head[0].iov_len -= (data_start - orig_start);
+ buf->len -= (data_start - orig_start);
+
+ ret = GSS_S_DEFECTIVE_TOKEN;
+ if (gss_krb5_remove_padding(buf, blocksize))
+ goto out;
+
+ ret = GSS_S_COMPLETE;
+out:
+ if (md5cksum.data) kfree(md5cksum.data);
+ return ret;
+}
diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c
index 9dfb68377d6..b048bf672da 100644
--- a/net/sunrpc/auth_gss/gss_mech_switch.c
+++ b/net/sunrpc/auth_gss/gss_mech_switch.c
@@ -35,7 +35,6 @@
#include <linux/types.h>
#include <linux/slab.h>
-#include <linux/socket.h>
#include <linux/module.h>
#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/gss_asn1.h>
@@ -251,13 +250,11 @@ gss_import_sec_context(const void *input_token, size_t bufsize,
u32
gss_get_mic(struct gss_ctx *context_handle,
- u32 qop,
struct xdr_buf *message,
struct xdr_netobj *mic_token)
{
return context_handle->mech_type->gm_ops
->gss_get_mic(context_handle,
- qop,
message,
mic_token);
}
@@ -267,16 +264,34 @@ gss_get_mic(struct gss_ctx *context_handle,
u32
gss_verify_mic(struct gss_ctx *context_handle,
struct xdr_buf *message,
- struct xdr_netobj *mic_token,
- u32 *qstate)
+ struct xdr_netobj *mic_token)
{
return context_handle->mech_type->gm_ops
->gss_verify_mic(context_handle,
message,
- mic_token,
- qstate);
+ mic_token);
}
+u32
+gss_wrap(struct gss_ctx *ctx_id,
+ int offset,
+ struct xdr_buf *buf,
+ struct page **inpages)
+{
+ return ctx_id->mech_type->gm_ops
+ ->gss_wrap(ctx_id, offset, buf, inpages);
+}
+
+u32
+gss_unwrap(struct gss_ctx *ctx_id,
+ int offset,
+ struct xdr_buf *buf)
+{
+ return ctx_id->mech_type->gm_ops
+ ->gss_unwrap(ctx_id, offset, buf);
+}
+
+
/* gss_delete_sec_context: free all resources associated with context_handle.
* Note this differs from the RFC 2744-specified prototype in that we don't
* bother returning an output token, since it would never be used anyway. */
diff --git a/net/sunrpc/auth_gss/gss_spkm3_mech.c b/net/sunrpc/auth_gss/gss_spkm3_mech.c
index 6c97d61baa9..39b3edc1469 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_mech.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_mech.c
@@ -224,18 +224,13 @@ gss_delete_sec_context_spkm3(void *internal_ctx) {
static u32
gss_verify_mic_spkm3(struct gss_ctx *ctx,
struct xdr_buf *signbuf,
- struct xdr_netobj *checksum,
- u32 *qstate) {
+ struct xdr_netobj *checksum)
+{
u32 maj_stat = 0;
- int qop_state = 0;
struct spkm3_ctx *sctx = ctx->internal_ctx_id;
dprintk("RPC: gss_verify_mic_spkm3 calling spkm3_read_token\n");
- maj_stat = spkm3_read_token(sctx, checksum, signbuf, &qop_state,
- SPKM_MIC_TOK);
-
- if (!maj_stat && qop_state)
- *qstate = qop_state;
+ maj_stat = spkm3_read_token(sctx, checksum, signbuf, SPKM_MIC_TOK);
dprintk("RPC: gss_verify_mic_spkm3 returning %d\n", maj_stat);
return maj_stat;
@@ -243,15 +238,15 @@ gss_verify_mic_spkm3(struct gss_ctx *ctx,
static u32
gss_get_mic_spkm3(struct gss_ctx *ctx,
- u32 qop,
struct xdr_buf *message_buffer,
- struct xdr_netobj *message_token) {
+ struct xdr_netobj *message_token)
+{
u32 err = 0;
struct spkm3_ctx *sctx = ctx->internal_ctx_id;
dprintk("RPC: gss_get_mic_spkm3\n");
- err = spkm3_make_token(sctx, qop, message_buffer,
+ err = spkm3_make_token(sctx, message_buffer,
message_token, SPKM_MIC_TOK);
return err;
}
@@ -264,8 +259,8 @@ static struct gss_api_ops gss_spkm3_ops = {
};
static struct pf_desc gss_spkm3_pfs[] = {
- {RPC_AUTH_GSS_SPKM, 0, RPC_GSS_SVC_NONE, "spkm3"},
- {RPC_AUTH_GSS_SPKMI, 0, RPC_GSS_SVC_INTEGRITY, "spkm3i"},
+ {RPC_AUTH_GSS_SPKM, RPC_GSS_SVC_NONE, "spkm3"},
+ {RPC_AUTH_GSS_SPKMI, RPC_GSS_SVC_INTEGRITY, "spkm3i"},
};
static struct gss_api_mech gss_spkm3_mech = {
diff --git a/net/sunrpc/auth_gss/gss_spkm3_seal.c b/net/sunrpc/auth_gss/gss_spkm3_seal.c
index 25339868d46..148201e929d 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_seal.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_seal.c
@@ -51,7 +51,7 @@
*/
u32
-spkm3_make_token(struct spkm3_ctx *ctx, int qop_req,
+spkm3_make_token(struct spkm3_ctx *ctx,
struct xdr_buf * text, struct xdr_netobj * token,
int toktype)
{
@@ -68,8 +68,6 @@ spkm3_make_token(struct spkm3_ctx *ctx, int qop_req,
dprintk("RPC: spkm3_make_token\n");
now = jiffies;
- if (qop_req != 0)
- goto out_err;
if (ctx->ctx_id.len != 16) {
dprintk("RPC: spkm3_make_token BAD ctx_id.len %d\n",
diff --git a/net/sunrpc/auth_gss/gss_spkm3_unseal.c b/net/sunrpc/auth_gss/gss_spkm3_unseal.c
index 65ce81bf0bc..c3c0d958610 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_unseal.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_unseal.c
@@ -52,7 +52,7 @@ u32
spkm3_read_token(struct spkm3_ctx *ctx,
struct xdr_netobj *read_token, /* checksum */
struct xdr_buf *message_buffer, /* signbuf */
- int *qop_state, int toktype)
+ int toktype)
{
s32 code;
struct xdr_netobj wire_cksum = {.len =0, .data = NULL};
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index e3308195374..e4ada15ed85 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -566,8 +566,7 @@ gss_verify_header(struct svc_rqst *rqstp, struct rsc *rsci,
if (rqstp->rq_deferred) /* skip verification of revisited request */
return SVC_OK;
- if (gss_verify_mic(ctx_id, &rpchdr, &checksum, NULL)
- != GSS_S_COMPLETE) {
+ if (gss_verify_mic(ctx_id, &rpchdr, &checksum) != GSS_S_COMPLETE) {
*authp = rpcsec_gsserr_credproblem;
return SVC_DENIED;
}
@@ -604,7 +603,7 @@ gss_write_verf(struct svc_rqst *rqstp, struct gss_ctx *ctx_id, u32 seq)
xdr_buf_from_iov(&iov, &verf_data);
p = rqstp->rq_res.head->iov_base + rqstp->rq_res.head->iov_len;
mic.data = (u8 *)(p + 1);
- maj_stat = gss_get_mic(ctx_id, 0, &verf_data, &mic);
+ maj_stat = gss_get_mic(ctx_id, &verf_data, &mic);
if (maj_stat != GSS_S_COMPLETE)
return -1;
*p++ = htonl(mic.len);
@@ -710,7 +709,7 @@ unwrap_integ_data(struct xdr_buf *buf, u32 seq, struct gss_ctx *ctx)
goto out;
if (read_bytes_from_xdr_buf(buf, integ_len + 4, mic.data, mic.len))
goto out;
- maj_stat = gss_verify_mic(ctx, &integ_buf, &mic, NULL);
+ maj_stat = gss_verify_mic(ctx, &integ_buf, &mic);
if (maj_stat != GSS_S_COMPLETE)
goto out;
if (ntohl(svc_getu32(&buf->head[0])) != seq)
@@ -1012,7 +1011,7 @@ svcauth_gss_release(struct svc_rqst *rqstp)
resv = &resbuf->tail[0];
}
mic.data = (u8 *)resv->iov_base + resv->iov_len + 4;
- if (gss_get_mic(gsd->rsci->mechctx, 0, &integ_buf, &mic))
+ if (gss_get_mic(gsd->rsci->mechctx, &integ_buf, &mic))
goto out_err;
svc_putu32(resv, htonl(mic.len));
memset(mic.data + mic.len, 0,
diff --git a/net/sunrpc/auth_null.c b/net/sunrpc/auth_null.c
index 9b72d3abf82..f56767aaa92 100644
--- a/net/sunrpc/auth_null.c
+++ b/net/sunrpc/auth_null.c
@@ -7,9 +7,7 @@
*/
#include <linux/types.h>
-#include <linux/socket.h>
#include <linux/module.h>
-#include <linux/in.h>
#include <linux/utsname.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sched.h>
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 4ff297a9b15..890fb5ea0dc 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -9,8 +9,6 @@
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/module.h>
-#include <linux/socket.h>
-#include <linux/in.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/auth.h>
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index f17e6153b68..702ede309b0 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1,5 +1,5 @@
/*
- * linux/net/sunrpc/rpcclnt.c
+ * linux/net/sunrpc/clnt.c
*
* This file contains the high-level RPC interface.
* It is modeled as a finite state machine to support both synchronous
@@ -27,7 +27,6 @@
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/slab.h>
-#include <linux/in.h>
#include <linux/utsname.h>
#include <linux/sunrpc/clnt.h>
@@ -53,6 +52,7 @@ static void call_allocate(struct rpc_task *task);
static void call_encode(struct rpc_task *task);
static void call_decode(struct rpc_task *task);
static void call_bind(struct rpc_task *task);
+static void call_bind_status(struct rpc_task *task);
static void call_transmit(struct rpc_task *task);
static void call_status(struct rpc_task *task);
static void call_refresh(struct rpc_task *task);
@@ -517,15 +517,8 @@ void
rpc_setbufsize(struct rpc_clnt *clnt, unsigned int sndsize, unsigned int rcvsize)
{
struct rpc_xprt *xprt = clnt->cl_xprt;
-
- xprt->sndsize = 0;
- if (sndsize)
- xprt->sndsize = sndsize + RPC_SLACK_SPACE;
- xprt->rcvsize = 0;
- if (rcvsize)
- xprt->rcvsize = rcvsize + RPC_SLACK_SPACE;
- if (xprt_connected(xprt))
- xprt_sock_setbufsize(xprt);
+ if (xprt->ops->set_buffer_size)
+ xprt->ops->set_buffer_size(xprt, sndsize, rcvsize);
}
/*
@@ -685,13 +678,11 @@ call_allocate(struct rpc_task *task)
static void
call_encode(struct rpc_task *task)
{
- struct rpc_clnt *clnt = task->tk_client;
struct rpc_rqst *req = task->tk_rqstp;
struct xdr_buf *sndbuf = &req->rq_snd_buf;
struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
unsigned int bufsiz;
kxdrproc_t encode;
- int status;
u32 *p;
dprintk("RPC: %4d call_encode (status %d)\n",
@@ -719,11 +710,15 @@ call_encode(struct rpc_task *task)
rpc_exit(task, -EIO);
return;
}
- if (encode && (status = rpcauth_wrap_req(task, encode, req, p,
- task->tk_msg.rpc_argp)) < 0) {
- printk(KERN_WARNING "%s: can't encode arguments: %d\n",
- clnt->cl_protname, -status);
- rpc_exit(task, status);
+ if (encode == NULL)
+ return;
+
+ task->tk_status = rpcauth_wrap_req(task, encode, req, p,
+ task->tk_msg.rpc_argp);
+ if (task->tk_status == -ENOMEM) {
+ /* XXX: Is this sane? */
+ rpc_delay(task, 3*HZ);
+ task->tk_status = -EAGAIN;
}
}
@@ -734,43 +729,95 @@ static void
call_bind(struct rpc_task *task)
{
struct rpc_clnt *clnt = task->tk_client;
- struct rpc_xprt *xprt = clnt->cl_xprt;
-
- dprintk("RPC: %4d call_bind xprt %p %s connected\n", task->tk_pid,
- xprt, (xprt_connected(xprt) ? "is" : "is not"));
- task->tk_action = (xprt_connected(xprt)) ? call_transmit : call_connect;
+ dprintk("RPC: %4d call_bind (status %d)\n",
+ task->tk_pid, task->tk_status);
+ task->tk_action = call_connect;
if (!clnt->cl_port) {
- task->tk_action = call_connect;
- task->tk_timeout = RPC_CONNECT_TIMEOUT;
+ task->tk_action = call_bind_status;
+ task->tk_timeout = task->tk_xprt->bind_timeout;
rpc_getport(task, clnt);
}
}
/*
- * 4a. Connect to the RPC server (TCP case)
+ * 4a. Sort out bind result
+ */
+static void
+call_bind_status(struct rpc_task *task)
+{
+ int status = -EACCES;
+
+ if (task->tk_status >= 0) {
+ dprintk("RPC: %4d call_bind_status (status %d)\n",
+ task->tk_pid, task->tk_status);
+ task->tk_status = 0;
+ task->tk_action = call_connect;
+ return;
+ }
+
+ switch (task->tk_status) {
+ case -EACCES:
+ dprintk("RPC: %4d remote rpcbind: RPC program/version unavailable\n",
+ task->tk_pid);
+ rpc_delay(task, 3*HZ);
+ goto retry_bind;
+ case -ETIMEDOUT:
+ dprintk("RPC: %4d rpcbind request timed out\n",
+ task->tk_pid);
+ if (RPC_IS_SOFT(task)) {
+ status = -EIO;
+ break;
+ }
+ goto retry_bind;
+ case -EPFNOSUPPORT:
+ dprintk("RPC: %4d remote rpcbind service unavailable\n",
+ task->tk_pid);
+ break;
+ case -EPROTONOSUPPORT:
+ dprintk("RPC: %4d remote rpcbind version 2 unavailable\n",
+ task->tk_pid);
+ break;
+ default:
+ dprintk("RPC: %4d unrecognized rpcbind error (%d)\n",
+ task->tk_pid, -task->tk_status);
+ status = -EIO;
+ break;
+ }
+
+ rpc_exit(task, status);
+ return;
+
+retry_bind:
+ task->tk_status = 0;
+ task->tk_action = call_bind;
+ return;
+}
+
+/*
+ * 4b. Connect to the RPC server
*/
static void
call_connect(struct rpc_task *task)
{
- struct rpc_clnt *clnt = task->tk_client;
+ struct rpc_xprt *xprt = task->tk_xprt;
- dprintk("RPC: %4d call_connect status %d\n",
- task->tk_pid, task->tk_status);
+ dprintk("RPC: %4d call_connect xprt %p %s connected\n",
+ task->tk_pid, xprt,
+ (xprt_connected(xprt) ? "is" : "is not"));
- if (xprt_connected(clnt->cl_xprt)) {
- task->tk_action = call_transmit;
- return;
+ task->tk_action = call_transmit;
+ if (!xprt_connected(xprt)) {
+ task->tk_action = call_connect_status;
+ if (task->tk_status < 0)
+ return;
+ xprt_connect(task);
}
- task->tk_action = call_connect_status;
- if (task->tk_status < 0)
- return;
- xprt_connect(task);
}
/*
- * 4b. Sort out connect result
+ * 4c. Sort out connect result
*/
static void
call_connect_status(struct rpc_task *task)
@@ -778,6 +825,9 @@ call_connect_status(struct rpc_task *task)
struct rpc_clnt *clnt = task->tk_client;
int status = task->tk_status;
+ dprintk("RPC: %5u call_connect_status (status %d)\n",
+ task->tk_pid, task->tk_status);
+
task->tk_status = 0;
if (status >= 0) {
clnt->cl_stats->netreconn++;
@@ -785,17 +835,19 @@ call_connect_status(struct rpc_task *task)
return;
}
- /* Something failed: we may have to rebind */
+ /* Something failed: remote service port may have changed */
if (clnt->cl_autobind)
clnt->cl_port = 0;
+
switch (status) {
case -ENOTCONN:
case -ETIMEDOUT:
case -EAGAIN:
- task->tk_action = (clnt->cl_port == 0) ? call_bind : call_connect;
+ task->tk_action = call_bind;
break;
default:
rpc_exit(task, -EIO);
+ break;
}
}
@@ -815,10 +867,12 @@ call_transmit(struct rpc_task *task)
if (task->tk_status != 0)
return;
/* Encode here so that rpcsec_gss can use correct sequence number. */
- if (!task->tk_rqstp->rq_bytes_sent)
+ if (task->tk_rqstp->rq_bytes_sent == 0) {
call_encode(task);
- if (task->tk_status < 0)
- return;
+ /* Did the encode result in an error condition? */
+ if (task->tk_status != 0)
+ goto out_nosend;
+ }
xprt_transmit(task);
if (task->tk_status < 0)
return;
@@ -826,6 +880,10 @@ call_transmit(struct rpc_task *task)
task->tk_action = NULL;
rpc_wake_up_task(task);
}
+ return;
+out_nosend:
+ /* release socket write lock before attempting to handle error */
+ xprt_abort_transmit(task);
}
/*
@@ -1020,13 +1078,12 @@ static u32 *
call_header(struct rpc_task *task)
{
struct rpc_clnt *clnt = task->tk_client;
- struct rpc_xprt *xprt = clnt->cl_xprt;
struct rpc_rqst *req = task->tk_rqstp;
u32 *p = req->rq_svec[0].iov_base;
/* FIXME: check buffer size? */
- if (xprt->stream)
- *p++ = 0; /* fill in later */
+
+ p = xprt_skip_transport_header(task->tk_xprt, p);
*p++ = req->rq_xid; /* XID */
*p++ = htonl(RPC_CALL); /* CALL */
*p++ = htonl(RPC_VERSION); /* RPC version */
diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c
index 4e81f276692..a398575f94b 100644
--- a/net/sunrpc/pmap_clnt.c
+++ b/net/sunrpc/pmap_clnt.c
@@ -26,7 +26,7 @@
#define PMAP_GETPORT 3
static struct rpc_procinfo pmap_procedures[];
-static struct rpc_clnt * pmap_create(char *, struct sockaddr_in *, int);
+static struct rpc_clnt * pmap_create(char *, struct sockaddr_in *, int, int);
static void pmap_getport_done(struct rpc_task *);
static struct rpc_program pmap_program;
static DEFINE_SPINLOCK(pmap_lock);
@@ -65,7 +65,7 @@ rpc_getport(struct rpc_task *task, struct rpc_clnt *clnt)
map->pm_binding = 1;
spin_unlock(&pmap_lock);
- pmap_clnt = pmap_create(clnt->cl_server, sap, map->pm_prot);
+ pmap_clnt = pmap_create(clnt->cl_server, sap, map->pm_prot, 0);
if (IS_ERR(pmap_clnt)) {
task->tk_status = PTR_ERR(pmap_clnt);
goto bailout;
@@ -112,7 +112,7 @@ rpc_getport_external(struct sockaddr_in *sin, __u32 prog, __u32 vers, int prot)
NIPQUAD(sin->sin_addr.s_addr), prog, vers, prot);
sprintf(hostname, "%u.%u.%u.%u", NIPQUAD(sin->sin_addr.s_addr));
- pmap_clnt = pmap_create(hostname, sin, prot);
+ pmap_clnt = pmap_create(hostname, sin, prot, 0);
if (IS_ERR(pmap_clnt))
return PTR_ERR(pmap_clnt);
@@ -171,7 +171,7 @@ rpc_register(u32 prog, u32 vers, int prot, unsigned short port, int *okay)
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
- pmap_clnt = pmap_create("localhost", &sin, IPPROTO_UDP);
+ pmap_clnt = pmap_create("localhost", &sin, IPPROTO_UDP, 1);
if (IS_ERR(pmap_clnt)) {
error = PTR_ERR(pmap_clnt);
dprintk("RPC: couldn't create pmap client. Error = %d\n", error);
@@ -198,7 +198,7 @@ rpc_register(u32 prog, u32 vers, int prot, unsigned short port, int *okay)
}
static struct rpc_clnt *
-pmap_create(char *hostname, struct sockaddr_in *srvaddr, int proto)
+pmap_create(char *hostname, struct sockaddr_in *srvaddr, int proto, int privileged)
{
struct rpc_xprt *xprt;
struct rpc_clnt *clnt;
@@ -208,6 +208,8 @@ pmap_create(char *hostname, struct sockaddr_in *srvaddr, int proto)
if (IS_ERR(xprt))
return (struct rpc_clnt *)xprt;
xprt->addr.sin_port = htons(RPC_PMAP_PORT);
+ if (!privileged)
+ xprt->resvport = 0;
/* printk("pmap: create clnt\n"); */
clnt = rpc_new_client(xprt, hostname,
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index ded6c63f11e..4f188d0a5d1 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -76,25 +76,35 @@ int
rpc_queue_upcall(struct inode *inode, struct rpc_pipe_msg *msg)
{
struct rpc_inode *rpci = RPC_I(inode);
- int res = 0;
+ int res = -EPIPE;
down(&inode->i_sem);
+ if (rpci->ops == NULL)
+ goto out;
if (rpci->nreaders) {
list_add_tail(&msg->list, &rpci->pipe);
rpci->pipelen += msg->len;
+ res = 0;
} else if (rpci->flags & RPC_PIPE_WAIT_FOR_OPEN) {
if (list_empty(&rpci->pipe))
schedule_delayed_work(&rpci->queue_timeout,
RPC_UPCALL_TIMEOUT);
list_add_tail(&msg->list, &rpci->pipe);
rpci->pipelen += msg->len;
- } else
- res = -EPIPE;
+ res = 0;
+ }
+out:
up(&inode->i_sem);
wake_up(&rpci->waitq);
return res;
}
+static inline void
+rpc_inode_setowner(struct inode *inode, void *private)
+{
+ RPC_I(inode)->private = private;
+}
+
static void
rpc_close_pipes(struct inode *inode)
{
@@ -111,15 +121,10 @@ rpc_close_pipes(struct inode *inode)
rpci->ops->release_pipe(inode);
rpci->ops = NULL;
}
+ rpc_inode_setowner(inode, NULL);
up(&inode->i_sem);
}
-static inline void
-rpc_inode_setowner(struct inode *inode, void *private)
-{
- RPC_I(inode)->private = private;
-}
-
static struct inode *
rpc_alloc_inode(struct super_block *sb)
{
@@ -501,7 +506,6 @@ repeat:
dentry = dvec[--n];
if (dentry->d_inode) {
rpc_close_pipes(dentry->d_inode);
- rpc_inode_setowner(dentry->d_inode, NULL);
simple_unlink(dir, dentry);
}
dput(dentry);
@@ -576,10 +580,8 @@ __rpc_rmdir(struct inode *dir, struct dentry *dentry)
int error;
shrink_dcache_parent(dentry);
- if (dentry->d_inode) {
+ if (dentry->d_inode)
rpc_close_pipes(dentry->d_inode);
- rpc_inode_setowner(dentry->d_inode, NULL);
- }
if ((error = simple_rmdir(dir, dentry)) != 0)
return error;
if (!error) {
@@ -732,7 +734,6 @@ rpc_unlink(char *path)
d_drop(dentry);
if (dentry->d_inode) {
rpc_close_pipes(dentry->d_inode);
- rpc_inode_setowner(dentry->d_inode, NULL);
error = simple_unlink(dir, dentry);
}
dput(dentry);
diff --git a/net/sunrpc/socklib.c b/net/sunrpc/socklib.c
new file mode 100644
index 00000000000..8f97e90f36c
--- /dev/null
+++ b/net/sunrpc/socklib.c
@@ -0,0 +1,175 @@
+/*
+ * linux/net/sunrpc/socklib.c
+ *
+ * Common socket helper routines for RPC client and server
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/types.h>
+#include <linux/pagemap.h>
+#include <linux/udp.h>
+#include <linux/sunrpc/xdr.h>
+
+
+/**
+ * skb_read_bits - copy some data bits from skb to internal buffer
+ * @desc: sk_buff copy helper
+ * @to: copy destination
+ * @len: number of bytes to copy
+ *
+ * Possibly called several times to iterate over an sk_buff and copy
+ * data out of it.
+ */
+static size_t skb_read_bits(skb_reader_t *desc, void *to, size_t len)
+{
+ if (len > desc->count)
+ len = desc->count;
+ if (skb_copy_bits(desc->skb, desc->offset, to, len))
+ return 0;
+ desc->count -= len;
+ desc->offset += len;
+ return len;
+}
+
+/**
+ * skb_read_and_csum_bits - copy and checksum from skb to buffer
+ * @desc: sk_buff copy helper
+ * @to: copy destination
+ * @len: number of bytes to copy
+ *
+ * Same as skb_read_bits, but calculate a checksum at the same time.
+ */
+static size_t skb_read_and_csum_bits(skb_reader_t *desc, void *to, size_t len)
+{
+ unsigned int csum2, pos;
+
+ if (len > desc->count)
+ len = desc->count;
+ pos = desc->offset;
+ csum2 = skb_copy_and_csum_bits(desc->skb, pos, to, len, 0);
+ desc->csum = csum_block_add(desc->csum, csum2, pos);
+ desc->count -= len;
+ desc->offset += len;
+ return len;
+}
+
+/**
+ * xdr_partial_copy_from_skb - copy data out of an skb
+ * @xdr: target XDR buffer
+ * @base: starting offset
+ * @desc: sk_buff copy helper
+ * @copy_actor: virtual method for copying data
+ *
+ */
+ssize_t xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, skb_reader_t *desc, skb_read_actor_t copy_actor)
+{
+ struct page **ppage = xdr->pages;
+ unsigned int len, pglen = xdr->page_len;
+ ssize_t copied = 0;
+ int ret;
+
+ len = xdr->head[0].iov_len;
+ if (base < len) {
+ len -= base;
+ ret = copy_actor(desc, (char *)xdr->head[0].iov_base + base, len);
+ copied += ret;
+ if (ret != len || !desc->count)
+ goto out;
+ base = 0;
+ } else
+ base -= len;
+
+ if (unlikely(pglen == 0))
+ goto copy_tail;
+ if (unlikely(base >= pglen)) {
+ base -= pglen;
+ goto copy_tail;
+ }
+ if (base || xdr->page_base) {
+ pglen -= base;
+ base += xdr->page_base;
+ ppage += base >> PAGE_CACHE_SHIFT;
+ base &= ~PAGE_CACHE_MASK;
+ }
+ do {
+ char *kaddr;
+
+ /* ACL likes to be lazy in allocating pages - ACLs
+ * are small by default but can get huge. */
+ if (unlikely(*ppage == NULL)) {
+ *ppage = alloc_page(GFP_ATOMIC);
+ if (unlikely(*ppage == NULL)) {
+ if (copied == 0)
+ copied = -ENOMEM;
+ goto out;
+ }
+ }
+
+ len = PAGE_CACHE_SIZE;
+ kaddr = kmap_atomic(*ppage, KM_SKB_SUNRPC_DATA);
+ if (base) {
+ len -= base;
+ if (pglen < len)
+ len = pglen;
+ ret = copy_actor(desc, kaddr + base, len);
+ base = 0;
+ } else {
+ if (pglen < len)
+ len = pglen;
+ ret = copy_actor(desc, kaddr, len);
+ }
+ flush_dcache_page(*ppage);
+ kunmap_atomic(kaddr, KM_SKB_SUNRPC_DATA);
+ copied += ret;
+ if (ret != len || !desc->count)
+ goto out;
+ ppage++;
+ } while ((pglen -= len) != 0);
+copy_tail:
+ len = xdr->tail[0].iov_len;
+ if (base < len)
+ copied += copy_actor(desc, (char *)xdr->tail[0].iov_base + base, len - base);
+out:
+ return copied;
+}
+
+/**
+ * csum_partial_copy_to_xdr - checksum and copy data
+ * @xdr: target XDR buffer
+ * @skb: source skb
+ *
+ * We have set things up such that we perform the checksum of the UDP
+ * packet in parallel with the copies into the RPC client iovec. -DaveM
+ */
+int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
+{
+ skb_reader_t desc;
+
+ desc.skb = skb;
+ desc.offset = sizeof(struct udphdr);
+ desc.count = skb->len - desc.offset;
+
+ if (skb->ip_summed == CHECKSUM_UNNECESSARY)
+ goto no_checksum;
+
+ desc.csum = csum_partial(skb->data, desc.offset, skb->csum);
+ if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_and_csum_bits) < 0)
+ return -1;
+ if (desc.offset != skb->len) {
+ unsigned int csum2;
+ csum2 = skb_checksum(skb, desc.offset, skb->len - desc.offset, 0);
+ desc.csum = csum_block_add(desc.csum, csum2, desc.offset);
+ }
+ if (desc.count)
+ return -1;
+ if ((unsigned short)csum_fold(desc.csum))
+ return -1;
+ return 0;
+no_checksum:
+ if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_bits) < 0)
+ return -1;
+ if (desc.count)
+ return -1;
+ return 0;
+}
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index ed48ff022d3..2387e7b823f 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -10,7 +10,6 @@
#include <linux/module.h>
#include <linux/types.h>
-#include <linux/socket.h>
#include <linux/sched.h>
#include <linux/uio.h>
#include <linux/unistd.h>
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 691dea4a58e..f16e7cdd615 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -548,9 +548,6 @@ svc_write_space(struct sock *sk)
/*
* Receive a datagram from a UDP socket.
*/
-extern int
-csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb);
-
static int
svc_udp_recvfrom(struct svc_rqst *rqstp)
{
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index 1b9616a12e2..d0c9f460e41 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -119,8 +119,18 @@ done:
return 0;
}
+unsigned int xprt_udp_slot_table_entries = RPC_DEF_SLOT_TABLE;
+unsigned int xprt_tcp_slot_table_entries = RPC_DEF_SLOT_TABLE;
+unsigned int xprt_min_resvport = RPC_DEF_MIN_RESVPORT;
+EXPORT_SYMBOL(xprt_min_resvport);
+unsigned int xprt_max_resvport = RPC_DEF_MAX_RESVPORT;
+EXPORT_SYMBOL(xprt_max_resvport);
+
+
static unsigned int min_slot_table_size = RPC_MIN_SLOT_TABLE;
static unsigned int max_slot_table_size = RPC_MAX_SLOT_TABLE;
+static unsigned int xprt_min_resvport_limit = RPC_MIN_RESVPORT;
+static unsigned int xprt_max_resvport_limit = RPC_MAX_RESVPORT;
static ctl_table debug_table[] = {
{
@@ -177,6 +187,28 @@ static ctl_table debug_table[] = {
.extra1 = &min_slot_table_size,
.extra2 = &max_slot_table_size
},
+ {
+ .ctl_name = CTL_MIN_RESVPORT,
+ .procname = "min_resvport",
+ .data = &xprt_min_resvport,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &xprt_min_resvport_limit,
+ .extra2 = &xprt_max_resvport_limit
+ },
+ {
+ .ctl_name = CTL_MAX_RESVPORT,
+ .procname = "max_resvport",
+ .data = &xprt_max_resvport,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &xprt_min_resvport_limit,
+ .extra2 = &xprt_max_resvport_limit
+ },
{ .ctl_name = 0 }
};
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index fde16f40a58..32df43372ee 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -6,15 +6,12 @@
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
+#include <linux/module.h>
#include <linux/types.h>
-#include <linux/socket.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/pagemap.h>
#include <linux/errno.h>
-#include <linux/in.h>
-#include <linux/net.h>
-#include <net/sock.h>
#include <linux/sunrpc/xdr.h>
#include <linux/sunrpc/msg_prot.h>
@@ -176,178 +173,6 @@ xdr_inline_pages(struct xdr_buf *xdr, unsigned int offset,
xdr->buflen += len;
}
-ssize_t
-xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base,
- skb_reader_t *desc,
- skb_read_actor_t copy_actor)
-{
- struct page **ppage = xdr->pages;
- unsigned int len, pglen = xdr->page_len;
- ssize_t copied = 0;
- int ret;
-
- len = xdr->head[0].iov_len;
- if (base < len) {
- len -= base;
- ret = copy_actor(desc, (char *)xdr->head[0].iov_base + base, len);
- copied += ret;
- if (ret != len || !desc->count)
- goto out;
- base = 0;
- } else
- base -= len;
-
- if (pglen == 0)
- goto copy_tail;
- if (base >= pglen) {
- base -= pglen;
- goto copy_tail;
- }
- if (base || xdr->page_base) {
- pglen -= base;
- base += xdr->page_base;
- ppage += base >> PAGE_CACHE_SHIFT;
- base &= ~PAGE_CACHE_MASK;
- }
- do {
- char *kaddr;
-
- /* ACL likes to be lazy in allocating pages - ACLs
- * are small by default but can get huge. */
- if (unlikely(*ppage == NULL)) {
- *ppage = alloc_page(GFP_ATOMIC);
- if (unlikely(*ppage == NULL)) {
- if (copied == 0)
- copied = -ENOMEM;
- goto out;
- }
- }
-
- len = PAGE_CACHE_SIZE;
- kaddr = kmap_atomic(*ppage, KM_SKB_SUNRPC_DATA);
- if (base) {
- len -= base;
- if (pglen < len)
- len = pglen;
- ret = copy_actor(desc, kaddr + base, len);
- base = 0;
- } else {
- if (pglen < len)
- len = pglen;
- ret = copy_actor(desc, kaddr, len);
- }
- flush_dcache_page(*ppage);
- kunmap_atomic(kaddr, KM_SKB_SUNRPC_DATA);
- copied += ret;
- if (ret != len || !desc->count)
- goto out;
- ppage++;
- } while ((pglen -= len) != 0);
-copy_tail:
- len = xdr->tail[0].iov_len;
- if (base < len)
- copied += copy_actor(desc, (char *)xdr->tail[0].iov_base + base, len - base);
-out:
- return copied;
-}
-
-
-int
-xdr_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen,
- struct xdr_buf *xdr, unsigned int base, int msgflags)
-{
- struct page **ppage = xdr->pages;
- unsigned int len, pglen = xdr->page_len;
- int err, ret = 0;
- ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int);
-
- len = xdr->head[0].iov_len;
- if (base < len || (addr != NULL && base == 0)) {
- struct kvec iov = {
- .iov_base = xdr->head[0].iov_base + base,
- .iov_len = len - base,
- };
- struct msghdr msg = {
- .msg_name = addr,
- .msg_namelen = addrlen,
- .msg_flags = msgflags,
- };
- if (xdr->len > len)
- msg.msg_flags |= MSG_MORE;
-
- if (iov.iov_len != 0)
- err = kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len);
- else
- err = kernel_sendmsg(sock, &msg, NULL, 0, 0);
- if (ret == 0)
- ret = err;
- else if (err > 0)
- ret += err;
- if (err != iov.iov_len)
- goto out;
- base = 0;
- } else
- base -= len;
-
- if (pglen == 0)
- goto copy_tail;
- if (base >= pglen) {
- base -= pglen;
- goto copy_tail;
- }
- if (base || xdr->page_base) {
- pglen -= base;
- base += xdr->page_base;
- ppage += base >> PAGE_CACHE_SHIFT;
- base &= ~PAGE_CACHE_MASK;
- }
-
- sendpage = sock->ops->sendpage ? : sock_no_sendpage;
- do {
- int flags = msgflags;
-
- len = PAGE_CACHE_SIZE;
- if (base)
- len -= base;
- if (pglen < len)
- len = pglen;
-
- if (pglen != len || xdr->tail[0].iov_len != 0)
- flags |= MSG_MORE;
-
- /* Hmm... We might be dealing with highmem pages */
- if (PageHighMem(*ppage))
- sendpage = sock_no_sendpage;
- err = sendpage(sock, *ppage, base, len, flags);
- if (ret == 0)
- ret = err;
- else if (err > 0)
- ret += err;
- if (err != len)
- goto out;
- base = 0;
- ppage++;
- } while ((pglen -= len) != 0);
-copy_tail:
- len = xdr->tail[0].iov_len;
- if (base < len) {
- struct kvec iov = {
- .iov_base = xdr->tail[0].iov_base + base,
- .iov_len = len - base,
- };
- struct msghdr msg = {
- .msg_flags = msgflags,
- };
- err = kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len);
- if (ret == 0)
- ret = err;
- else if (err > 0)
- ret += err;
- }
-out:
- return ret;
-}
-
/*
* Helper routines for doing 'memmove' like operations on a struct xdr_buf
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 3c654e06b08..6dda3860351 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -10,12 +10,12 @@
* one is available. Otherwise, it sleeps on the backlog queue
* (xprt_reserve).
* - Next, the caller puts together the RPC message, stuffs it into
- * the request struct, and calls xprt_call().
- * - xprt_call transmits the message and installs the caller on the
- * socket's wait list. At the same time, it installs a timer that
+ * the request struct, and calls xprt_transmit().
+ * - xprt_transmit sends the message and installs the caller on the
+ * transport's wait list. At the same time, it installs a timer that
* is run after the packet's timeout has expired.
* - When a packet arrives, the data_ready handler walks the list of
- * pending requests for that socket. If a matching XID is found, the
+ * pending requests for that transport. If a matching XID is found, the
* caller is woken up, and the timer removed.
* - When no reply arrives within the timeout interval, the timer is
* fired by the kernel and runs xprt_timer(). It either adjusts the
@@ -33,36 +33,17 @@
*
* Copyright (C) 1995-1997, Olaf Kirch <okir@monad.swb.de>
*
- * TCP callback races fixes (C) 1998 Red Hat Software <alan@redhat.com>
- * TCP send fixes (C) 1998 Red Hat Software <alan@redhat.com>
- * TCP NFS related read + write fixes
- * (C) 1999 Dave Airlie, University of Limerick, Ireland <airlied@linux.ie>
- *
- * Rewrite of larges part of the code in order to stabilize TCP stuff.
- * Fix behaviour when socket buffer is full.
- * (C) 1999 Trond Myklebust <trond.myklebust@fys.uio.no>
+ * Transport switch API copyright (C) 2005, Chuck Lever <cel@netapp.com>
*/
+#include <linux/module.h>
+
#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/capability.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/socket.h>
-#include <linux/in.h>
-#include <linux/net.h>
-#include <linux/mm.h>
-#include <linux/udp.h>
-#include <linux/tcp.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/file.h>
+#include <linux/interrupt.h>
#include <linux/workqueue.h>
#include <linux/random.h>
-#include <net/sock.h>
-#include <net/checksum.h>
-#include <net/udp.h>
-#include <net/tcp.h>
+#include <linux/sunrpc/clnt.h>
/*
* Local variables
@@ -73,81 +54,90 @@
# define RPCDBG_FACILITY RPCDBG_XPRT
#endif
-#define XPRT_MAX_BACKOFF (8)
-#define XPRT_IDLE_TIMEOUT (5*60*HZ)
-#define XPRT_MAX_RESVPORT (800)
-
/*
* Local functions
*/
static void xprt_request_init(struct rpc_task *, struct rpc_xprt *);
static inline void do_xprt_reserve(struct rpc_task *);
-static void xprt_disconnect(struct rpc_xprt *);
static void xprt_connect_status(struct rpc_task *task);
-static struct rpc_xprt * xprt_setup(int proto, struct sockaddr_in *ap,
- struct rpc_timeout *to);
-static struct socket *xprt_create_socket(struct rpc_xprt *, int, int);
-static void xprt_bind_socket(struct rpc_xprt *, struct socket *);
static int __xprt_get_cong(struct rpc_xprt *, struct rpc_task *);
-static int xprt_clear_backlog(struct rpc_xprt *xprt);
-
-#ifdef RPC_DEBUG_DATA
/*
- * Print the buffer contents (first 128 bytes only--just enough for
- * diropres return).
+ * The transport code maintains an estimate on the maximum number of out-
+ * standing RPC requests, using a smoothed version of the congestion
+ * avoidance implemented in 44BSD. This is basically the Van Jacobson
+ * congestion algorithm: If a retransmit occurs, the congestion window is
+ * halved; otherwise, it is incremented by 1/cwnd when
+ *
+ * - a reply is received and
+ * - a full number of requests are outstanding and
+ * - the congestion window hasn't been updated recently.
*/
-static void
-xprt_pktdump(char *msg, u32 *packet, unsigned int count)
-{
- u8 *buf = (u8 *) packet;
- int j;
-
- dprintk("RPC: %s\n", msg);
- for (j = 0; j < count && j < 128; j += 4) {
- if (!(j & 31)) {
- if (j)
- dprintk("\n");
- dprintk("0x%04x ", j);
- }
- dprintk("%02x%02x%02x%02x ",
- buf[j], buf[j+1], buf[j+2], buf[j+3]);
- }
- dprintk("\n");
-}
-#else
-static inline void
-xprt_pktdump(char *msg, u32 *packet, unsigned int count)
-{
- /* NOP */
-}
-#endif
+#define RPC_CWNDSHIFT (8U)
+#define RPC_CWNDSCALE (1U << RPC_CWNDSHIFT)
+#define RPC_INITCWND RPC_CWNDSCALE
+#define RPC_MAXCWND(xprt) ((xprt)->max_reqs << RPC_CWNDSHIFT)
-/*
- * Look up RPC transport given an INET socket
+#define RPCXPRT_CONGESTED(xprt) ((xprt)->cong >= (xprt)->cwnd)
+
+/**
+ * xprt_reserve_xprt - serialize write access to transports
+ * @task: task that is requesting access to the transport
+ *
+ * This prevents mixing the payload of separate requests, and prevents
+ * transport connects from colliding with writes. No congestion control
+ * is provided.
*/
-static inline struct rpc_xprt *
-xprt_from_sock(struct sock *sk)
+int xprt_reserve_xprt(struct rpc_task *task)
{
- return (struct rpc_xprt *) sk->sk_user_data;
+ struct rpc_xprt *xprt = task->tk_xprt;
+ struct rpc_rqst *req = task->tk_rqstp;
+
+ if (test_and_set_bit(XPRT_LOCKED, &xprt->state)) {
+ if (task == xprt->snd_task)
+ return 1;
+ if (task == NULL)
+ return 0;
+ goto out_sleep;
+ }
+ xprt->snd_task = task;
+ if (req) {
+ req->rq_bytes_sent = 0;
+ req->rq_ntrans++;
+ }
+ return 1;
+
+out_sleep:
+ dprintk("RPC: %4d failed to lock transport %p\n",
+ task->tk_pid, xprt);
+ task->tk_timeout = 0;
+ task->tk_status = -EAGAIN;
+ if (req && req->rq_ntrans)
+ rpc_sleep_on(&xprt->resend, task, NULL, NULL);
+ else
+ rpc_sleep_on(&xprt->sending, task, NULL, NULL);
+ return 0;
}
/*
- * Serialize write access to sockets, in order to prevent different
- * requests from interfering with each other.
- * Also prevents TCP socket connects from colliding with writes.
+ * xprt_reserve_xprt_cong - serialize write access to transports
+ * @task: task that is requesting access to the transport
+ *
+ * Same as xprt_reserve_xprt, but Van Jacobson congestion control is
+ * integrated into the decision of whether a request is allowed to be
+ * woken up and given access to the transport.
*/
-static int
-__xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task)
+int xprt_reserve_xprt_cong(struct rpc_task *task)
{
+ struct rpc_xprt *xprt = task->tk_xprt;
struct rpc_rqst *req = task->tk_rqstp;
- if (test_and_set_bit(XPRT_LOCKED, &xprt->sockstate)) {
+ if (test_and_set_bit(XPRT_LOCKED, &xprt->state)) {
if (task == xprt->snd_task)
return 1;
goto out_sleep;
}
- if (xprt->nocong || __xprt_get_cong(xprt, task)) {
+ if (__xprt_get_cong(xprt, task)) {
xprt->snd_task = task;
if (req) {
req->rq_bytes_sent = 0;
@@ -156,10 +146,10 @@ __xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task)
return 1;
}
smp_mb__before_clear_bit();
- clear_bit(XPRT_LOCKED, &xprt->sockstate);
+ clear_bit(XPRT_LOCKED, &xprt->state);
smp_mb__after_clear_bit();
out_sleep:
- dprintk("RPC: %4d failed to lock socket %p\n", task->tk_pid, xprt);
+ dprintk("RPC: %4d failed to lock transport %p\n", task->tk_pid, xprt);
task->tk_timeout = 0;
task->tk_status = -EAGAIN;
if (req && req->rq_ntrans)
@@ -169,26 +159,52 @@ out_sleep:
return 0;
}
-static inline int
-xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task)
+static inline int xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task)
{
int retval;
- spin_lock_bh(&xprt->sock_lock);
- retval = __xprt_lock_write(xprt, task);
- spin_unlock_bh(&xprt->sock_lock);
+ spin_lock_bh(&xprt->transport_lock);
+ retval = xprt->ops->reserve_xprt(task);
+ spin_unlock_bh(&xprt->transport_lock);
return retval;
}
+static void __xprt_lock_write_next(struct rpc_xprt *xprt)
+{
+ struct rpc_task *task;
+ struct rpc_rqst *req;
-static void
-__xprt_lock_write_next(struct rpc_xprt *xprt)
+ if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
+ return;
+
+ task = rpc_wake_up_next(&xprt->resend);
+ if (!task) {
+ task = rpc_wake_up_next(&xprt->sending);
+ if (!task)
+ goto out_unlock;
+ }
+
+ req = task->tk_rqstp;
+ xprt->snd_task = task;
+ if (req) {
+ req->rq_bytes_sent = 0;
+ req->rq_ntrans++;
+ }
+ return;
+
+out_unlock:
+ smp_mb__before_clear_bit();
+ clear_bit(XPRT_LOCKED, &xprt->state);
+ smp_mb__after_clear_bit();
+}
+
+static void __xprt_lock_write_next_cong(struct rpc_xprt *xprt)
{
struct rpc_task *task;
- if (test_and_set_bit(XPRT_LOCKED, &xprt->sockstate))
+ if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
return;
- if (!xprt->nocong && RPCXPRT_CONGESTED(xprt))
+ if (RPCXPRT_CONGESTED(xprt))
goto out_unlock;
task = rpc_wake_up_next(&xprt->resend);
if (!task) {
@@ -196,7 +212,7 @@ __xprt_lock_write_next(struct rpc_xprt *xprt)
if (!task)
goto out_unlock;
}
- if (xprt->nocong || __xprt_get_cong(xprt, task)) {
+ if (__xprt_get_cong(xprt, task)) {
struct rpc_rqst *req = task->tk_rqstp;
xprt->snd_task = task;
if (req) {
@@ -207,87 +223,52 @@ __xprt_lock_write_next(struct rpc_xprt *xprt)
}
out_unlock:
smp_mb__before_clear_bit();
- clear_bit(XPRT_LOCKED, &xprt->sockstate);
+ clear_bit(XPRT_LOCKED, &xprt->state);
smp_mb__after_clear_bit();
}
-/*
- * Releases the socket for use by other requests.
+/**
+ * xprt_release_xprt - allow other requests to use a transport
+ * @xprt: transport with other tasks potentially waiting
+ * @task: task that is releasing access to the transport
+ *
+ * Note that "task" can be NULL. No congestion control is provided.
*/
-static void
-__xprt_release_write(struct rpc_xprt *xprt, struct rpc_task *task)
+void xprt_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task)
{
if (xprt->snd_task == task) {
xprt->snd_task = NULL;
smp_mb__before_clear_bit();
- clear_bit(XPRT_LOCKED, &xprt->sockstate);
+ clear_bit(XPRT_LOCKED, &xprt->state);
smp_mb__after_clear_bit();
__xprt_lock_write_next(xprt);
}
}
-static inline void
-xprt_release_write(struct rpc_xprt *xprt, struct rpc_task *task)
-{
- spin_lock_bh(&xprt->sock_lock);
- __xprt_release_write(xprt, task);
- spin_unlock_bh(&xprt->sock_lock);
-}
-
-/*
- * Write data to socket.
+/**
+ * xprt_release_xprt_cong - allow other requests to use a transport
+ * @xprt: transport with other tasks potentially waiting
+ * @task: task that is releasing access to the transport
+ *
+ * Note that "task" can be NULL. Another task is awoken to use the
+ * transport if the transport's congestion window allows it.
*/
-static inline int
-xprt_sendmsg(struct rpc_xprt *xprt, struct rpc_rqst *req)
+void xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task)
{
- struct socket *sock = xprt->sock;
- struct xdr_buf *xdr = &req->rq_snd_buf;
- struct sockaddr *addr = NULL;
- int addrlen = 0;
- unsigned int skip;
- int result;
-
- if (!sock)
- return -ENOTCONN;
-
- xprt_pktdump("packet data:",
- req->rq_svec->iov_base,
- req->rq_svec->iov_len);
-
- /* For UDP, we need to provide an address */
- if (!xprt->stream) {
- addr = (struct sockaddr *) &xprt->addr;
- addrlen = sizeof(xprt->addr);
+ if (xprt->snd_task == task) {
+ xprt->snd_task = NULL;
+ smp_mb__before_clear_bit();
+ clear_bit(XPRT_LOCKED, &xprt->state);
+ smp_mb__after_clear_bit();
+ __xprt_lock_write_next_cong(xprt);
}
- /* Dont repeat bytes */
- skip = req->rq_bytes_sent;
-
- clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags);
- result = xdr_sendpages(sock, addr, addrlen, xdr, skip, MSG_DONTWAIT);
-
- dprintk("RPC: xprt_sendmsg(%d) = %d\n", xdr->len - skip, result);
-
- if (result >= 0)
- return result;
+}
- switch (result) {
- case -ECONNREFUSED:
- /* When the server has died, an ICMP port unreachable message
- * prompts ECONNREFUSED.
- */
- case -EAGAIN:
- break;
- case -ECONNRESET:
- case -ENOTCONN:
- case -EPIPE:
- /* connection broken */
- if (xprt->stream)
- result = -ENOTCONN;
- break;
- default:
- printk(KERN_NOTICE "RPC: sendmsg returned error %d\n", -result);
- }
- return result;
+static inline void xprt_release_write(struct rpc_xprt *xprt, struct rpc_task *task)
+{
+ spin_lock_bh(&xprt->transport_lock);
+ xprt->ops->release_xprt(xprt, task);
+ spin_unlock_bh(&xprt->transport_lock);
}
/*
@@ -321,26 +302,40 @@ __xprt_put_cong(struct rpc_xprt *xprt, struct rpc_rqst *req)
return;
req->rq_cong = 0;
xprt->cong -= RPC_CWNDSCALE;
- __xprt_lock_write_next(xprt);
+ __xprt_lock_write_next_cong(xprt);
}
-/*
- * Adjust RPC congestion window
+/**
+ * xprt_release_rqst_cong - housekeeping when request is complete
+ * @task: RPC request that recently completed
+ *
+ * Useful for transports that require congestion control.
+ */
+void xprt_release_rqst_cong(struct rpc_task *task)
+{
+ __xprt_put_cong(task->tk_xprt, task->tk_rqstp);
+}
+
+/**
+ * xprt_adjust_cwnd - adjust transport congestion window
+ * @task: recently completed RPC request used to adjust window
+ * @result: result code of completed RPC request
+ *
* We use a time-smoothed congestion estimator to avoid heavy oscillation.
*/
-static void
-xprt_adjust_cwnd(struct rpc_xprt *xprt, int result)
+void xprt_adjust_cwnd(struct rpc_task *task, int result)
{
- unsigned long cwnd;
+ struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_xprt *xprt = task->tk_xprt;
+ unsigned long cwnd = xprt->cwnd;
- cwnd = xprt->cwnd;
if (result >= 0 && cwnd <= xprt->cong) {
/* The (cwnd >> 1) term makes sure
* the result gets rounded properly. */
cwnd += (RPC_CWNDSCALE * RPC_CWNDSCALE + (cwnd >> 1)) / cwnd;
if (cwnd > RPC_MAXCWND(xprt))
cwnd = RPC_MAXCWND(xprt);
- __xprt_lock_write_next(xprt);
+ __xprt_lock_write_next_cong(xprt);
} else if (result == -ETIMEDOUT) {
cwnd >>= 1;
if (cwnd < RPC_CWNDSCALE)
@@ -349,11 +344,89 @@ xprt_adjust_cwnd(struct rpc_xprt *xprt, int result)
dprintk("RPC: cong %ld, cwnd was %ld, now %ld\n",
xprt->cong, xprt->cwnd, cwnd);
xprt->cwnd = cwnd;
+ __xprt_put_cong(xprt, req);
+}
+
+/**
+ * xprt_wake_pending_tasks - wake all tasks on a transport's pending queue
+ * @xprt: transport with waiting tasks
+ * @status: result code to plant in each task before waking it
+ *
+ */
+void xprt_wake_pending_tasks(struct rpc_xprt *xprt, int status)
+{
+ if (status < 0)
+ rpc_wake_up_status(&xprt->pending, status);
+ else
+ rpc_wake_up(&xprt->pending);
+}
+
+/**
+ * xprt_wait_for_buffer_space - wait for transport output buffer to clear
+ * @task: task to be put to sleep
+ *
+ */
+void xprt_wait_for_buffer_space(struct rpc_task *task)
+{
+ struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_xprt *xprt = req->rq_xprt;
+
+ task->tk_timeout = req->rq_timeout;
+ rpc_sleep_on(&xprt->pending, task, NULL, NULL);
+}
+
+/**
+ * xprt_write_space - wake the task waiting for transport output buffer space
+ * @xprt: transport with waiting tasks
+ *
+ * Can be called in a soft IRQ context, so xprt_write_space never sleeps.
+ */
+void xprt_write_space(struct rpc_xprt *xprt)
+{
+ if (unlikely(xprt->shutdown))
+ return;
+
+ spin_lock_bh(&xprt->transport_lock);
+ if (xprt->snd_task) {
+ dprintk("RPC: write space: waking waiting task on xprt %p\n",
+ xprt);
+ rpc_wake_up_task(xprt->snd_task);
+ }
+ spin_unlock_bh(&xprt->transport_lock);
+}
+
+/**
+ * xprt_set_retrans_timeout_def - set a request's retransmit timeout
+ * @task: task whose timeout is to be set
+ *
+ * Set a request's retransmit timeout based on the transport's
+ * default timeout parameters. Used by transports that don't adjust
+ * the retransmit timeout based on round-trip time estimation.
+ */
+void xprt_set_retrans_timeout_def(struct rpc_task *task)
+{
+ task->tk_timeout = task->tk_rqstp->rq_timeout;
}
/*
- * Reset the major timeout value
+ * xprt_set_retrans_timeout_rtt - set a request's retransmit timeout
+ * @task: task whose timeout is to be set
+ *
+ * Set a request's retransmit timeout using the RTT estimator.
*/
+void xprt_set_retrans_timeout_rtt(struct rpc_task *task)
+{
+ int timer = task->tk_msg.rpc_proc->p_timer;
+ struct rpc_rtt *rtt = task->tk_client->cl_rtt;
+ struct rpc_rqst *req = task->tk_rqstp;
+ unsigned long max_timeout = req->rq_xprt->timeout.to_maxval;
+
+ task->tk_timeout = rpc_calc_rto(rtt, timer);
+ task->tk_timeout <<= rpc_ntimeo(rtt, timer) + req->rq_retries;
+ if (task->tk_timeout > max_timeout || task->tk_timeout == 0)
+ task->tk_timeout = max_timeout;
+}
+
static void xprt_reset_majortimeo(struct rpc_rqst *req)
{
struct rpc_timeout *to = &req->rq_xprt->timeout;
@@ -368,8 +441,10 @@ static void xprt_reset_majortimeo(struct rpc_rqst *req)
req->rq_majortimeo += jiffies;
}
-/*
- * Adjust timeout values etc for next retransmit
+/**
+ * xprt_adjust_timeout - adjust timeout values for next retransmit
+ * @req: RPC request containing parameters to use for the adjustment
+ *
*/
int xprt_adjust_timeout(struct rpc_rqst *req)
{
@@ -391,9 +466,9 @@ int xprt_adjust_timeout(struct rpc_rqst *req)
req->rq_retries = 0;
xprt_reset_majortimeo(req);
/* Reset the RTT counters == "slow start" */
- spin_lock_bh(&xprt->sock_lock);
+ spin_lock_bh(&xprt->transport_lock);
rpc_init_rtt(req->rq_task->tk_client->cl_rtt, to->to_initval);
- spin_unlock_bh(&xprt->sock_lock);
+ spin_unlock_bh(&xprt->transport_lock);
pprintk("RPC: %lu timeout\n", jiffies);
status = -ETIMEDOUT;
}
@@ -405,133 +480,52 @@ int xprt_adjust_timeout(struct rpc_rqst *req)
return status;
}
-/*
- * Close down a transport socket
- */
-static void
-xprt_close(struct rpc_xprt *xprt)
-{
- struct socket *sock = xprt->sock;
- struct sock *sk = xprt->inet;
-
- if (!sk)
- return;
-
- write_lock_bh(&sk->sk_callback_lock);
- xprt->inet = NULL;
- xprt->sock = NULL;
-
- sk->sk_user_data = NULL;
- sk->sk_data_ready = xprt->old_data_ready;
- sk->sk_state_change = xprt->old_state_change;
- sk->sk_write_space = xprt->old_write_space;
- write_unlock_bh(&sk->sk_callback_lock);
-
- sk->sk_no_check = 0;
-
- sock_release(sock);
-}
-
-static void
-xprt_socket_autoclose(void *args)
+static void xprt_autoclose(void *args)
{
struct rpc_xprt *xprt = (struct rpc_xprt *)args;
xprt_disconnect(xprt);
- xprt_close(xprt);
+ xprt->ops->close(xprt);
xprt_release_write(xprt, NULL);
}
-/*
- * Mark a transport as disconnected
+/**
+ * xprt_disconnect - mark a transport as disconnected
+ * @xprt: transport to flag for disconnect
+ *
*/
-static void
-xprt_disconnect(struct rpc_xprt *xprt)
+void xprt_disconnect(struct rpc_xprt *xprt)
{
dprintk("RPC: disconnected transport %p\n", xprt);
- spin_lock_bh(&xprt->sock_lock);
+ spin_lock_bh(&xprt->transport_lock);
xprt_clear_connected(xprt);
- rpc_wake_up_status(&xprt->pending, -ENOTCONN);
- spin_unlock_bh(&xprt->sock_lock);
+ xprt_wake_pending_tasks(xprt, -ENOTCONN);
+ spin_unlock_bh(&xprt->transport_lock);
}
-/*
- * Used to allow disconnection when we've been idle
- */
static void
xprt_init_autodisconnect(unsigned long data)
{
struct rpc_xprt *xprt = (struct rpc_xprt *)data;
- spin_lock(&xprt->sock_lock);
+ spin_lock(&xprt->transport_lock);
if (!list_empty(&xprt->recv) || xprt->shutdown)
goto out_abort;
- if (test_and_set_bit(XPRT_LOCKED, &xprt->sockstate))
+ if (test_and_set_bit(XPRT_LOCKED, &xprt->state))
goto out_abort;
- spin_unlock(&xprt->sock_lock);
- /* Let keventd close the socket */
- if (test_bit(XPRT_CONNECTING, &xprt->sockstate) != 0)
+ spin_unlock(&xprt->transport_lock);
+ if (xprt_connecting(xprt))
xprt_release_write(xprt, NULL);
else
schedule_work(&xprt->task_cleanup);
return;
out_abort:
- spin_unlock(&xprt->sock_lock);
-}
-
-static void xprt_socket_connect(void *args)
-{
- struct rpc_xprt *xprt = (struct rpc_xprt *)args;
- struct socket *sock = xprt->sock;
- int status = -EIO;
-
- if (xprt->shutdown || xprt->addr.sin_port == 0)
- goto out;
-
- /*
- * Start by resetting any existing state
- */
- xprt_close(xprt);
- sock = xprt_create_socket(xprt, xprt->prot, xprt->resvport);
- if (sock == NULL) {
- /* couldn't create socket or bind to reserved port;
- * this is likely a permanent error, so cause an abort */
- goto out;
- }
- xprt_bind_socket(xprt, sock);
- xprt_sock_setbufsize(xprt);
-
- status = 0;
- if (!xprt->stream)
- goto out;
-
- /*
- * Tell the socket layer to start connecting...
- */
- status = sock->ops->connect(sock, (struct sockaddr *) &xprt->addr,
- sizeof(xprt->addr), O_NONBLOCK);
- dprintk("RPC: %p connect status %d connected %d sock state %d\n",
- xprt, -status, xprt_connected(xprt), sock->sk->sk_state);
- if (status < 0) {
- switch (status) {
- case -EINPROGRESS:
- case -EALREADY:
- goto out_clear;
- }
- }
-out:
- if (status < 0)
- rpc_wake_up_status(&xprt->pending, status);
- else
- rpc_wake_up(&xprt->pending);
-out_clear:
- smp_mb__before_clear_bit();
- clear_bit(XPRT_CONNECTING, &xprt->sockstate);
- smp_mb__after_clear_bit();
+ spin_unlock(&xprt->transport_lock);
}
-/*
- * Attempt to connect a TCP socket.
+/**
+ * xprt_connect - schedule a transport connect operation
+ * @task: RPC task that is requesting the connect
*
*/
void xprt_connect(struct rpc_task *task)
@@ -552,37 +546,19 @@ void xprt_connect(struct rpc_task *task)
if (!xprt_lock_write(xprt, task))
return;
if (xprt_connected(xprt))
- goto out_write;
+ xprt_release_write(xprt, task);
+ else {
+ if (task->tk_rqstp)
+ task->tk_rqstp->rq_bytes_sent = 0;
- if (task->tk_rqstp)
- task->tk_rqstp->rq_bytes_sent = 0;
-
- task->tk_timeout = RPC_CONNECT_TIMEOUT;
- rpc_sleep_on(&xprt->pending, task, xprt_connect_status, NULL);
- if (!test_and_set_bit(XPRT_CONNECTING, &xprt->sockstate)) {
- /* Note: if we are here due to a dropped connection
- * we delay reconnecting by RPC_REESTABLISH_TIMEOUT/HZ
- * seconds
- */
- if (xprt->sock != NULL)
- schedule_delayed_work(&xprt->sock_connect,
- RPC_REESTABLISH_TIMEOUT);
- else {
- schedule_work(&xprt->sock_connect);
- if (!RPC_IS_ASYNC(task))
- flush_scheduled_work();
- }
+ task->tk_timeout = xprt->connect_timeout;
+ rpc_sleep_on(&xprt->pending, task, xprt_connect_status, NULL);
+ xprt->ops->connect(task);
}
return;
- out_write:
- xprt_release_write(xprt, task);
}
-/*
- * We arrive here when awoken from waiting on connection establishment.
- */
-static void
-xprt_connect_status(struct rpc_task *task)
+static void xprt_connect_status(struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
@@ -592,31 +568,42 @@ xprt_connect_status(struct rpc_task *task)
return;
}
- /* if soft mounted, just cause this RPC to fail */
- if (RPC_IS_SOFT(task))
- task->tk_status = -EIO;
-
switch (task->tk_status) {
case -ECONNREFUSED:
case -ECONNRESET:
+ dprintk("RPC: %4d xprt_connect_status: server %s refused connection\n",
+ task->tk_pid, task->tk_client->cl_server);
+ break;
case -ENOTCONN:
- return;
+ dprintk("RPC: %4d xprt_connect_status: connection broken\n",
+ task->tk_pid);
+ break;
case -ETIMEDOUT:
- dprintk("RPC: %4d xprt_connect_status: timed out\n",
+ dprintk("RPC: %4d xprt_connect_status: connect attempt timed out\n",
task->tk_pid);
break;
default:
- printk(KERN_ERR "RPC: error %d connecting to server %s\n",
- -task->tk_status, task->tk_client->cl_server);
+ dprintk("RPC: %4d xprt_connect_status: error %d connecting to server %s\n",
+ task->tk_pid, -task->tk_status, task->tk_client->cl_server);
+ xprt_release_write(xprt, task);
+ task->tk_status = -EIO;
+ return;
+ }
+
+ /* if soft mounted, just cause this RPC to fail */
+ if (RPC_IS_SOFT(task)) {
+ xprt_release_write(xprt, task);
+ task->tk_status = -EIO;
}
- xprt_release_write(xprt, task);
}
-/*
- * Look up the RPC request corresponding to a reply, and then lock it.
+/**
+ * xprt_lookup_rqst - find an RPC request corresponding to an XID
+ * @xprt: transport on which the original request was transmitted
+ * @xid: RPC XID of incoming reply
+ *
*/
-static inline struct rpc_rqst *
-xprt_lookup_rqst(struct rpc_xprt *xprt, u32 xid)
+struct rpc_rqst *xprt_lookup_rqst(struct rpc_xprt *xprt, u32 xid)
{
struct list_head *pos;
struct rpc_rqst *req = NULL;
@@ -631,556 +618,68 @@ xprt_lookup_rqst(struct rpc_xprt *xprt, u32 xid)
return req;
}
-/*
- * Complete reply received.
- * The TCP code relies on us to remove the request from xprt->pending.
- */
-static void
-xprt_complete_rqst(struct rpc_xprt *xprt, struct rpc_rqst *req, int copied)
-{
- struct rpc_task *task = req->rq_task;
- struct rpc_clnt *clnt = task->tk_client;
-
- /* Adjust congestion window */
- if (!xprt->nocong) {
- unsigned timer = task->tk_msg.rpc_proc->p_timer;
- xprt_adjust_cwnd(xprt, copied);
- __xprt_put_cong(xprt, req);
- if (timer) {
- if (req->rq_ntrans == 1)
- rpc_update_rtt(clnt->cl_rtt, timer,
- (long)jiffies - req->rq_xtime);
- rpc_set_timeo(clnt->cl_rtt, timer, req->rq_ntrans - 1);
- }
- }
-
-#ifdef RPC_PROFILE
- /* Profile only reads for now */
- if (copied > 1024) {
- static unsigned long nextstat;
- static unsigned long pkt_rtt, pkt_len, pkt_cnt;
-
- pkt_cnt++;
- pkt_len += req->rq_slen + copied;
- pkt_rtt += jiffies - req->rq_xtime;
- if (time_before(nextstat, jiffies)) {
- printk("RPC: %lu %ld cwnd\n", jiffies, xprt->cwnd);
- printk("RPC: %ld %ld %ld %ld stat\n",
- jiffies, pkt_cnt, pkt_len, pkt_rtt);
- pkt_rtt = pkt_len = pkt_cnt = 0;
- nextstat = jiffies + 5 * HZ;
- }
- }
-#endif
-
- dprintk("RPC: %4d has input (%d bytes)\n", task->tk_pid, copied);
- list_del_init(&req->rq_list);
- req->rq_received = req->rq_private_buf.len = copied;
-
- /* ... and wake up the process. */
- rpc_wake_up_task(task);
- return;
-}
-
-static size_t
-skb_read_bits(skb_reader_t *desc, void *to, size_t len)
-{
- if (len > desc->count)
- len = desc->count;
- if (skb_copy_bits(desc->skb, desc->offset, to, len))
- return 0;
- desc->count -= len;
- desc->offset += len;
- return len;
-}
-
-static size_t
-skb_read_and_csum_bits(skb_reader_t *desc, void *to, size_t len)
-{
- unsigned int csum2, pos;
-
- if (len > desc->count)
- len = desc->count;
- pos = desc->offset;
- csum2 = skb_copy_and_csum_bits(desc->skb, pos, to, len, 0);
- desc->csum = csum_block_add(desc->csum, csum2, pos);
- desc->count -= len;
- desc->offset += len;
- return len;
-}
-
-/*
- * We have set things up such that we perform the checksum of the UDP
- * packet in parallel with the copies into the RPC client iovec. -DaveM
- */
-int
-csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
-{
- skb_reader_t desc;
-
- desc.skb = skb;
- desc.offset = sizeof(struct udphdr);
- desc.count = skb->len - desc.offset;
-
- if (skb->ip_summed == CHECKSUM_UNNECESSARY)
- goto no_checksum;
-
- desc.csum = csum_partial(skb->data, desc.offset, skb->csum);
- if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_and_csum_bits) < 0)
- return -1;
- if (desc.offset != skb->len) {
- unsigned int csum2;
- csum2 = skb_checksum(skb, desc.offset, skb->len - desc.offset, 0);
- desc.csum = csum_block_add(desc.csum, csum2, desc.offset);
- }
- if (desc.count)
- return -1;
- if ((unsigned short)csum_fold(desc.csum))
- return -1;
- return 0;
-no_checksum:
- if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_bits) < 0)
- return -1;
- if (desc.count)
- return -1;
- return 0;
-}
-
-/*
- * Input handler for RPC replies. Called from a bottom half and hence
- * atomic.
- */
-static void
-udp_data_ready(struct sock *sk, int len)
-{
- struct rpc_task *task;
- struct rpc_xprt *xprt;
- struct rpc_rqst *rovr;
- struct sk_buff *skb;
- int err, repsize, copied;
- u32 _xid, *xp;
-
- read_lock(&sk->sk_callback_lock);
- dprintk("RPC: udp_data_ready...\n");
- if (!(xprt = xprt_from_sock(sk))) {
- printk("RPC: udp_data_ready request not found!\n");
- goto out;
- }
-
- dprintk("RPC: udp_data_ready client %p\n", xprt);
-
- if ((skb = skb_recv_datagram(sk, 0, 1, &err)) == NULL)
- goto out;
-
- if (xprt->shutdown)
- goto dropit;
-
- repsize = skb->len - sizeof(struct udphdr);
- if (repsize < 4) {
- printk("RPC: impossible RPC reply size %d!\n", repsize);
- goto dropit;
- }
-
- /* Copy the XID from the skb... */
- xp = skb_header_pointer(skb, sizeof(struct udphdr),
- sizeof(_xid), &_xid);
- if (xp == NULL)
- goto dropit;
-
- /* Look up and lock the request corresponding to the given XID */
- spin_lock(&xprt->sock_lock);
- rovr = xprt_lookup_rqst(xprt, *xp);
- if (!rovr)
- goto out_unlock;
- task = rovr->rq_task;
-
- dprintk("RPC: %4d received reply\n", task->tk_pid);
-
- if ((copied = rovr->rq_private_buf.buflen) > repsize)
- copied = repsize;
-
- /* Suck it into the iovec, verify checksum if not done by hw. */
- if (csum_partial_copy_to_xdr(&rovr->rq_private_buf, skb))
- goto out_unlock;
-
- /* Something worked... */
- dst_confirm(skb->dst);
-
- xprt_complete_rqst(xprt, rovr, copied);
-
- out_unlock:
- spin_unlock(&xprt->sock_lock);
- dropit:
- skb_free_datagram(sk, skb);
- out:
- read_unlock(&sk->sk_callback_lock);
-}
-
-/*
- * Copy from an skb into memory and shrink the skb.
- */
-static inline size_t
-tcp_copy_data(skb_reader_t *desc, void *p, size_t len)
-{
- if (len > desc->count)
- len = desc->count;
- if (skb_copy_bits(desc->skb, desc->offset, p, len)) {
- dprintk("RPC: failed to copy %zu bytes from skb. %zu bytes remain\n",
- len, desc->count);
- return 0;
- }
- desc->offset += len;
- desc->count -= len;
- dprintk("RPC: copied %zu bytes from skb. %zu bytes remain\n",
- len, desc->count);
- return len;
-}
-
-/*
- * TCP read fragment marker
- */
-static inline void
-tcp_read_fraghdr(struct rpc_xprt *xprt, skb_reader_t *desc)
-{
- size_t len, used;
- char *p;
-
- p = ((char *) &xprt->tcp_recm) + xprt->tcp_offset;
- len = sizeof(xprt->tcp_recm) - xprt->tcp_offset;
- used = tcp_copy_data(desc, p, len);
- xprt->tcp_offset += used;
- if (used != len)
- return;
- xprt->tcp_reclen = ntohl(xprt->tcp_recm);
- if (xprt->tcp_reclen & 0x80000000)
- xprt->tcp_flags |= XPRT_LAST_FRAG;
- else
- xprt->tcp_flags &= ~XPRT_LAST_FRAG;
- xprt->tcp_reclen &= 0x7fffffff;
- xprt->tcp_flags &= ~XPRT_COPY_RECM;
- xprt->tcp_offset = 0;
- /* Sanity check of the record length */
- if (xprt->tcp_reclen < 4) {
- printk(KERN_ERR "RPC: Invalid TCP record fragment length\n");
- xprt_disconnect(xprt);
- }
- dprintk("RPC: reading TCP record fragment of length %d\n",
- xprt->tcp_reclen);
-}
-
-static void
-tcp_check_recm(struct rpc_xprt *xprt)
-{
- dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u, tcp_flags = %lx\n",
- xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen, xprt->tcp_flags);
- if (xprt->tcp_offset == xprt->tcp_reclen) {
- xprt->tcp_flags |= XPRT_COPY_RECM;
- xprt->tcp_offset = 0;
- if (xprt->tcp_flags & XPRT_LAST_FRAG) {
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
- xprt->tcp_flags |= XPRT_COPY_XID;
- xprt->tcp_copied = 0;
- }
- }
-}
-
-/*
- * TCP read xid
- */
-static inline void
-tcp_read_xid(struct rpc_xprt *xprt, skb_reader_t *desc)
-{
- size_t len, used;
- char *p;
-
- len = sizeof(xprt->tcp_xid) - xprt->tcp_offset;
- dprintk("RPC: reading XID (%Zu bytes)\n", len);
- p = ((char *) &xprt->tcp_xid) + xprt->tcp_offset;
- used = tcp_copy_data(desc, p, len);
- xprt->tcp_offset += used;
- if (used != len)
- return;
- xprt->tcp_flags &= ~XPRT_COPY_XID;
- xprt->tcp_flags |= XPRT_COPY_DATA;
- xprt->tcp_copied = 4;
- dprintk("RPC: reading reply for XID %08x\n",
- ntohl(xprt->tcp_xid));
- tcp_check_recm(xprt);
-}
-
-/*
- * TCP read and complete request
- */
-static inline void
-tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc)
-{
- struct rpc_rqst *req;
- struct xdr_buf *rcvbuf;
- size_t len;
- ssize_t r;
-
- /* Find and lock the request corresponding to this xid */
- spin_lock(&xprt->sock_lock);
- req = xprt_lookup_rqst(xprt, xprt->tcp_xid);
- if (!req) {
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
- dprintk("RPC: XID %08x request not found!\n",
- ntohl(xprt->tcp_xid));
- spin_unlock(&xprt->sock_lock);
- return;
- }
-
- rcvbuf = &req->rq_private_buf;
- len = desc->count;
- if (len > xprt->tcp_reclen - xprt->tcp_offset) {
- skb_reader_t my_desc;
-
- len = xprt->tcp_reclen - xprt->tcp_offset;
- memcpy(&my_desc, desc, sizeof(my_desc));
- my_desc.count = len;
- r = xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
- &my_desc, tcp_copy_data);
- desc->count -= r;
- desc->offset += r;
- } else
- r = xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
- desc, tcp_copy_data);
-
- if (r > 0) {
- xprt->tcp_copied += r;
- xprt->tcp_offset += r;
- }
- if (r != len) {
- /* Error when copying to the receive buffer,
- * usually because we weren't able to allocate
- * additional buffer pages. All we can do now
- * is turn off XPRT_COPY_DATA, so the request
- * will not receive any additional updates,
- * and time out.
- * Any remaining data from this record will
- * be discarded.
- */
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
- dprintk("RPC: XID %08x truncated request\n",
- ntohl(xprt->tcp_xid));
- dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u\n",
- xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen);
- goto out;
- }
-
- dprintk("RPC: XID %08x read %Zd bytes\n",
- ntohl(xprt->tcp_xid), r);
- dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u\n",
- xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen);
-
- if (xprt->tcp_copied == req->rq_private_buf.buflen)
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
- else if (xprt->tcp_offset == xprt->tcp_reclen) {
- if (xprt->tcp_flags & XPRT_LAST_FRAG)
- xprt->tcp_flags &= ~XPRT_COPY_DATA;
- }
-
-out:
- if (!(xprt->tcp_flags & XPRT_COPY_DATA)) {
- dprintk("RPC: %4d received reply complete\n",
- req->rq_task->tk_pid);
- xprt_complete_rqst(xprt, req, xprt->tcp_copied);
- }
- spin_unlock(&xprt->sock_lock);
- tcp_check_recm(xprt);
-}
-
-/*
- * TCP discard extra bytes from a short read
- */
-static inline void
-tcp_read_discard(struct rpc_xprt *xprt, skb_reader_t *desc)
-{
- size_t len;
-
- len = xprt->tcp_reclen - xprt->tcp_offset;
- if (len > desc->count)
- len = desc->count;
- desc->count -= len;
- desc->offset += len;
- xprt->tcp_offset += len;
- dprintk("RPC: discarded %Zu bytes\n", len);
- tcp_check_recm(xprt);
-}
-
-/*
- * TCP record receive routine
- * We first have to grab the record marker, then the XID, then the data.
+/**
+ * xprt_update_rtt - update an RPC client's RTT state after receiving a reply
+ * @task: RPC request that recently completed
+ *
*/
-static int
-tcp_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
- unsigned int offset, size_t len)
-{
- struct rpc_xprt *xprt = rd_desc->arg.data;
- skb_reader_t desc = {
- .skb = skb,
- .offset = offset,
- .count = len,
- .csum = 0
- };
-
- dprintk("RPC: tcp_data_recv\n");
- do {
- /* Read in a new fragment marker if necessary */
- /* Can we ever really expect to get completely empty fragments? */
- if (xprt->tcp_flags & XPRT_COPY_RECM) {
- tcp_read_fraghdr(xprt, &desc);
- continue;
- }
- /* Read in the xid if necessary */
- if (xprt->tcp_flags & XPRT_COPY_XID) {
- tcp_read_xid(xprt, &desc);
- continue;
- }
- /* Read in the request data */
- if (xprt->tcp_flags & XPRT_COPY_DATA) {
- tcp_read_request(xprt, &desc);
- continue;
- }
- /* Skip over any trailing bytes on short reads */
- tcp_read_discard(xprt, &desc);
- } while (desc.count);
- dprintk("RPC: tcp_data_recv done\n");
- return len - desc.count;
-}
-
-static void tcp_data_ready(struct sock *sk, int bytes)
+void xprt_update_rtt(struct rpc_task *task)
{
- struct rpc_xprt *xprt;
- read_descriptor_t rd_desc;
-
- read_lock(&sk->sk_callback_lock);
- dprintk("RPC: tcp_data_ready...\n");
- if (!(xprt = xprt_from_sock(sk))) {
- printk("RPC: tcp_data_ready socket info not found!\n");
- goto out;
- }
- if (xprt->shutdown)
- goto out;
-
- /* We use rd_desc to pass struct xprt to tcp_data_recv */
- rd_desc.arg.data = xprt;
- rd_desc.count = 65536;
- tcp_read_sock(sk, &rd_desc, tcp_data_recv);
-out:
- read_unlock(&sk->sk_callback_lock);
-}
-
-static void
-tcp_state_change(struct sock *sk)
-{
- struct rpc_xprt *xprt;
+ struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_rtt *rtt = task->tk_client->cl_rtt;
+ unsigned timer = task->tk_msg.rpc_proc->p_timer;
- read_lock(&sk->sk_callback_lock);
- if (!(xprt = xprt_from_sock(sk)))
- goto out;
- dprintk("RPC: tcp_state_change client %p...\n", xprt);
- dprintk("RPC: state %x conn %d dead %d zapped %d\n",
- sk->sk_state, xprt_connected(xprt),
- sock_flag(sk, SOCK_DEAD),
- sock_flag(sk, SOCK_ZAPPED));
-
- switch (sk->sk_state) {
- case TCP_ESTABLISHED:
- spin_lock_bh(&xprt->sock_lock);
- if (!xprt_test_and_set_connected(xprt)) {
- /* Reset TCP record info */
- xprt->tcp_offset = 0;
- xprt->tcp_reclen = 0;
- xprt->tcp_copied = 0;
- xprt->tcp_flags = XPRT_COPY_RECM | XPRT_COPY_XID;
- rpc_wake_up(&xprt->pending);
- }
- spin_unlock_bh(&xprt->sock_lock);
- break;
- case TCP_SYN_SENT:
- case TCP_SYN_RECV:
- break;
- default:
- xprt_disconnect(xprt);
- break;
+ if (timer) {
+ if (req->rq_ntrans == 1)
+ rpc_update_rtt(rtt, timer,
+ (long)jiffies - req->rq_xtime);
+ rpc_set_timeo(rtt, timer, req->rq_ntrans - 1);
}
- out:
- read_unlock(&sk->sk_callback_lock);
}
-/*
- * Called when more output buffer space is available for this socket.
- * We try not to wake our writers until they can make "significant"
- * progress, otherwise we'll waste resources thrashing sock_sendmsg
- * with a bunch of small requests.
+/**
+ * xprt_complete_rqst - called when reply processing is complete
+ * @task: RPC request that recently completed
+ * @copied: actual number of bytes received from the transport
+ *
+ * Caller holds transport lock.
*/
-static void
-xprt_write_space(struct sock *sk)
+void xprt_complete_rqst(struct rpc_task *task, int copied)
{
- struct rpc_xprt *xprt;
- struct socket *sock;
-
- read_lock(&sk->sk_callback_lock);
- if (!(xprt = xprt_from_sock(sk)) || !(sock = sk->sk_socket))
- goto out;
- if (xprt->shutdown)
- goto out;
-
- /* Wait until we have enough socket memory */
- if (xprt->stream) {
- /* from net/core/stream.c:sk_stream_write_space */
- if (sk_stream_wspace(sk) < sk_stream_min_wspace(sk))
- goto out;
- } else {
- /* from net/core/sock.c:sock_def_write_space */
- if (!sock_writeable(sk))
- goto out;
- }
+ struct rpc_rqst *req = task->tk_rqstp;
- if (!test_and_clear_bit(SOCK_NOSPACE, &sock->flags))
- goto out;
+ dprintk("RPC: %5u xid %08x complete (%d bytes received)\n",
+ task->tk_pid, ntohl(req->rq_xid), copied);
- spin_lock_bh(&xprt->sock_lock);
- if (xprt->snd_task)
- rpc_wake_up_task(xprt->snd_task);
- spin_unlock_bh(&xprt->sock_lock);
-out:
- read_unlock(&sk->sk_callback_lock);
+ list_del_init(&req->rq_list);
+ req->rq_received = req->rq_private_buf.len = copied;
+ rpc_wake_up_task(task);
}
-/*
- * RPC receive timeout handler.
- */
-static void
-xprt_timer(struct rpc_task *task)
+static void xprt_timer(struct rpc_task *task)
{
- struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
- spin_lock(&xprt->sock_lock);
- if (req->rq_received)
- goto out;
-
- xprt_adjust_cwnd(req->rq_xprt, -ETIMEDOUT);
- __xprt_put_cong(xprt, req);
+ dprintk("RPC: %4d xprt_timer\n", task->tk_pid);
- dprintk("RPC: %4d xprt_timer (%s request)\n",
- task->tk_pid, req ? "pending" : "backlogged");
-
- task->tk_status = -ETIMEDOUT;
-out:
+ spin_lock(&xprt->transport_lock);
+ if (!req->rq_received) {
+ if (xprt->ops->timer)
+ xprt->ops->timer(task);
+ task->tk_status = -ETIMEDOUT;
+ }
task->tk_timeout = 0;
rpc_wake_up_task(task);
- spin_unlock(&xprt->sock_lock);
+ spin_unlock(&xprt->transport_lock);
}
-/*
- * Place the actual RPC call.
- * We have to copy the iovec because sendmsg fiddles with its contents.
+/**
+ * xprt_prepare_transmit - reserve the transport before sending a request
+ * @task: RPC task about to send a request
+ *
*/
-int
-xprt_prepare_transmit(struct rpc_task *task)
+int xprt_prepare_transmit(struct rpc_task *task)
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
@@ -1191,12 +690,12 @@ xprt_prepare_transmit(struct rpc_task *task)
if (xprt->shutdown)
return -EIO;
- spin_lock_bh(&xprt->sock_lock);
+ spin_lock_bh(&xprt->transport_lock);
if (req->rq_received && !req->rq_bytes_sent) {
err = req->rq_received;
goto out_unlock;
}
- if (!__xprt_lock_write(xprt, task)) {
+ if (!xprt->ops->reserve_xprt(task)) {
err = -EAGAIN;
goto out_unlock;
}
@@ -1206,39 +705,42 @@ xprt_prepare_transmit(struct rpc_task *task)
goto out_unlock;
}
out_unlock:
- spin_unlock_bh(&xprt->sock_lock);
+ spin_unlock_bh(&xprt->transport_lock);
return err;
}
void
-xprt_transmit(struct rpc_task *task)
+xprt_abort_transmit(struct rpc_task *task)
+{
+ struct rpc_xprt *xprt = task->tk_xprt;
+
+ xprt_release_write(xprt, task);
+}
+
+/**
+ * xprt_transmit - send an RPC request on a transport
+ * @task: controlling RPC task
+ *
+ * We have to copy the iovec because sendmsg fiddles with its contents.
+ */
+void xprt_transmit(struct rpc_task *task)
{
- struct rpc_clnt *clnt = task->tk_client;
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
- int status, retry = 0;
-
+ int status;
dprintk("RPC: %4d xprt_transmit(%u)\n", task->tk_pid, req->rq_slen);
- /* set up everything as needed. */
- /* Write the record marker */
- if (xprt->stream) {
- u32 *marker = req->rq_svec[0].iov_base;
-
- *marker = htonl(0x80000000|(req->rq_slen-sizeof(*marker)));
- }
-
smp_rmb();
if (!req->rq_received) {
if (list_empty(&req->rq_list)) {
- spin_lock_bh(&xprt->sock_lock);
+ spin_lock_bh(&xprt->transport_lock);
/* Update the softirq receive buffer */
memcpy(&req->rq_private_buf, &req->rq_rcv_buf,
sizeof(req->rq_private_buf));
/* Add request to the receive list */
list_add_tail(&req->rq_list, &xprt->recv);
- spin_unlock_bh(&xprt->sock_lock);
+ spin_unlock_bh(&xprt->transport_lock);
xprt_reset_majortimeo(req);
/* Turn off autodisconnect */
del_singleshot_timer_sync(&xprt->timer);
@@ -1246,40 +748,19 @@ xprt_transmit(struct rpc_task *task)
} else if (!req->rq_bytes_sent)
return;
- /* Continue transmitting the packet/record. We must be careful
- * to cope with writespace callbacks arriving _after_ we have
- * called xprt_sendmsg().
- */
- while (1) {
- req->rq_xtime = jiffies;
- status = xprt_sendmsg(xprt, req);
-
- if (status < 0)
- break;
-
- if (xprt->stream) {
- req->rq_bytes_sent += status;
-
- /* If we've sent the entire packet, immediately
- * reset the count of bytes sent. */
- if (req->rq_bytes_sent >= req->rq_slen) {
- req->rq_bytes_sent = 0;
- goto out_receive;
- }
- } else {
- if (status >= req->rq_slen)
- goto out_receive;
- status = -EAGAIN;
- break;
- }
-
- dprintk("RPC: %4d xmit incomplete (%d left of %d)\n",
- task->tk_pid, req->rq_slen - req->rq_bytes_sent,
- req->rq_slen);
-
- status = -EAGAIN;
- if (retry++ > 50)
- break;
+ status = xprt->ops->send_request(task);
+ if (status == 0) {
+ dprintk("RPC: %4d xmit complete\n", task->tk_pid);
+ spin_lock_bh(&xprt->transport_lock);
+ xprt->ops->set_retrans_timeout(task);
+ /* Don't race with disconnect */
+ if (!xprt_connected(xprt))
+ task->tk_status = -ENOTCONN;
+ else if (!req->rq_received)
+ rpc_sleep_on(&xprt->pending, task, NULL, xprt_timer);
+ xprt->ops->release_xprt(xprt, task);
+ spin_unlock_bh(&xprt->transport_lock);
+ return;
}
/* Note: at this point, task->tk_sleeping has not yet been set,
@@ -1289,60 +770,19 @@ xprt_transmit(struct rpc_task *task)
task->tk_status = status;
switch (status) {
- case -EAGAIN:
- if (test_bit(SOCK_ASYNC_NOSPACE, &xprt->sock->flags)) {
- /* Protect against races with xprt_write_space */
- spin_lock_bh(&xprt->sock_lock);
- /* Don't race with disconnect */
- if (!xprt_connected(xprt))
- task->tk_status = -ENOTCONN;
- else if (test_bit(SOCK_NOSPACE, &xprt->sock->flags)) {
- task->tk_timeout = req->rq_timeout;
- rpc_sleep_on(&xprt->pending, task, NULL, NULL);
- }
- spin_unlock_bh(&xprt->sock_lock);
- return;
- }
- /* Keep holding the socket if it is blocked */
- rpc_delay(task, HZ>>4);
- return;
case -ECONNREFUSED:
- task->tk_timeout = RPC_REESTABLISH_TIMEOUT;
rpc_sleep_on(&xprt->sending, task, NULL, NULL);
+ case -EAGAIN:
case -ENOTCONN:
return;
default:
- if (xprt->stream)
- xprt_disconnect(xprt);
+ break;
}
xprt_release_write(xprt, task);
return;
- out_receive:
- dprintk("RPC: %4d xmit complete\n", task->tk_pid);
- /* Set the task's receive timeout value */
- spin_lock_bh(&xprt->sock_lock);
- if (!xprt->nocong) {
- int timer = task->tk_msg.rpc_proc->p_timer;
- task->tk_timeout = rpc_calc_rto(clnt->cl_rtt, timer);
- task->tk_timeout <<= rpc_ntimeo(clnt->cl_rtt, timer) + req->rq_retries;
- if (task->tk_timeout > xprt->timeout.to_maxval || task->tk_timeout == 0)
- task->tk_timeout = xprt->timeout.to_maxval;
- } else
- task->tk_timeout = req->rq_timeout;
- /* Don't race with disconnect */
- if (!xprt_connected(xprt))
- task->tk_status = -ENOTCONN;
- else if (!req->rq_received)
- rpc_sleep_on(&xprt->pending, task, NULL, xprt_timer);
- __xprt_release_write(xprt, task);
- spin_unlock_bh(&xprt->sock_lock);
}
-/*
- * Reserve an RPC call slot.
- */
-static inline void
-do_xprt_reserve(struct rpc_task *task)
+static inline void do_xprt_reserve(struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
@@ -1362,22 +802,25 @@ do_xprt_reserve(struct rpc_task *task)
rpc_sleep_on(&xprt->backlog, task, NULL, NULL);
}
-void
-xprt_reserve(struct rpc_task *task)
+/**
+ * xprt_reserve - allocate an RPC request slot
+ * @task: RPC task requesting a slot allocation
+ *
+ * If no more slots are available, place the task on the transport's
+ * backlog queue.
+ */
+void xprt_reserve(struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
task->tk_status = -EIO;
if (!xprt->shutdown) {
- spin_lock(&xprt->xprt_lock);
+ spin_lock(&xprt->reserve_lock);
do_xprt_reserve(task);
- spin_unlock(&xprt->xprt_lock);
+ spin_unlock(&xprt->reserve_lock);
}
}
-/*
- * Allocate a 'unique' XID
- */
static inline u32 xprt_alloc_xid(struct rpc_xprt *xprt)
{
return xprt->xid++;
@@ -1388,11 +831,7 @@ static inline void xprt_init_xid(struct rpc_xprt *xprt)
get_random_bytes(&xprt->xid, sizeof(xprt->xid));
}
-/*
- * Initialize RPC request
- */
-static void
-xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt)
+static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt)
{
struct rpc_rqst *req = task->tk_rqstp;
@@ -1400,128 +839,104 @@ xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt)
req->rq_task = task;
req->rq_xprt = xprt;
req->rq_xid = xprt_alloc_xid(xprt);
+ req->rq_release_snd_buf = NULL;
dprintk("RPC: %4d reserved req %p xid %08x\n", task->tk_pid,
req, ntohl(req->rq_xid));
}
-/*
- * Release an RPC call slot
+/**
+ * xprt_release - release an RPC request slot
+ * @task: task which is finished with the slot
+ *
*/
-void
-xprt_release(struct rpc_task *task)
+void xprt_release(struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
struct rpc_rqst *req;
if (!(req = task->tk_rqstp))
return;
- spin_lock_bh(&xprt->sock_lock);
- __xprt_release_write(xprt, task);
- __xprt_put_cong(xprt, req);
+ spin_lock_bh(&xprt->transport_lock);
+ xprt->ops->release_xprt(xprt, task);
+ if (xprt->ops->release_request)
+ xprt->ops->release_request(task);
if (!list_empty(&req->rq_list))
list_del(&req->rq_list);
xprt->last_used = jiffies;
if (list_empty(&xprt->recv) && !xprt->shutdown)
- mod_timer(&xprt->timer, xprt->last_used + XPRT_IDLE_TIMEOUT);
- spin_unlock_bh(&xprt->sock_lock);
+ mod_timer(&xprt->timer,
+ xprt->last_used + xprt->idle_timeout);
+ spin_unlock_bh(&xprt->transport_lock);
task->tk_rqstp = NULL;
+ if (req->rq_release_snd_buf)
+ req->rq_release_snd_buf(req);
memset(req, 0, sizeof(*req)); /* mark unused */
dprintk("RPC: %4d release request %p\n", task->tk_pid, req);
- spin_lock(&xprt->xprt_lock);
+ spin_lock(&xprt->reserve_lock);
list_add(&req->rq_list, &xprt->free);
- xprt_clear_backlog(xprt);
- spin_unlock(&xprt->xprt_lock);
-}
-
-/*
- * Set default timeout parameters
- */
-static void
-xprt_default_timeout(struct rpc_timeout *to, int proto)
-{
- if (proto == IPPROTO_UDP)
- xprt_set_timeout(to, 5, 5 * HZ);
- else
- xprt_set_timeout(to, 5, 60 * HZ);
+ rpc_wake_up_next(&xprt->backlog);
+ spin_unlock(&xprt->reserve_lock);
}
-/*
- * Set constant timeout
+/**
+ * xprt_set_timeout - set constant RPC timeout
+ * @to: RPC timeout parameters to set up
+ * @retr: number of retries
+ * @incr: amount of increase after each retry
+ *
*/
-void
-xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long incr)
+void xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long incr)
{
to->to_initval =
to->to_increment = incr;
- to->to_maxval = incr * retr;
+ to->to_maxval = to->to_initval + (incr * retr);
to->to_retries = retr;
to->to_exponential = 0;
}
-unsigned int xprt_udp_slot_table_entries = RPC_DEF_SLOT_TABLE;
-unsigned int xprt_tcp_slot_table_entries = RPC_DEF_SLOT_TABLE;
-
-/*
- * Initialize an RPC client
- */
-static struct rpc_xprt *
-xprt_setup(int proto, struct sockaddr_in *ap, struct rpc_timeout *to)
+static struct rpc_xprt *xprt_setup(int proto, struct sockaddr_in *ap, struct rpc_timeout *to)
{
+ int result;
struct rpc_xprt *xprt;
- unsigned int entries;
- size_t slot_table_size;
struct rpc_rqst *req;
- dprintk("RPC: setting up %s transport...\n",
- proto == IPPROTO_UDP? "UDP" : "TCP");
-
- entries = (proto == IPPROTO_TCP)?
- xprt_tcp_slot_table_entries : xprt_udp_slot_table_entries;
-
if ((xprt = kmalloc(sizeof(struct rpc_xprt), GFP_KERNEL)) == NULL)
return ERR_PTR(-ENOMEM);
memset(xprt, 0, sizeof(*xprt)); /* Nnnngh! */
- xprt->max_reqs = entries;
- slot_table_size = entries * sizeof(xprt->slot[0]);
- xprt->slot = kmalloc(slot_table_size, GFP_KERNEL);
- if (xprt->slot == NULL) {
- kfree(xprt);
- return ERR_PTR(-ENOMEM);
- }
- memset(xprt->slot, 0, slot_table_size);
xprt->addr = *ap;
- xprt->prot = proto;
- xprt->stream = (proto == IPPROTO_TCP)? 1 : 0;
- if (xprt->stream) {
- xprt->cwnd = RPC_MAXCWND(xprt);
- xprt->nocong = 1;
- xprt->max_payload = (1U << 31) - 1;
- } else {
- xprt->cwnd = RPC_INITCWND;
- xprt->max_payload = (1U << 16) - (MAX_HEADER << 3);
+
+ switch (proto) {
+ case IPPROTO_UDP:
+ result = xs_setup_udp(xprt, to);
+ break;
+ case IPPROTO_TCP:
+ result = xs_setup_tcp(xprt, to);
+ break;
+ default:
+ printk(KERN_ERR "RPC: unrecognized transport protocol: %d\n",
+ proto);
+ result = -EIO;
+ break;
+ }
+ if (result) {
+ kfree(xprt);
+ return ERR_PTR(result);
}
- spin_lock_init(&xprt->sock_lock);
- spin_lock_init(&xprt->xprt_lock);
- init_waitqueue_head(&xprt->cong_wait);
+
+ spin_lock_init(&xprt->transport_lock);
+ spin_lock_init(&xprt->reserve_lock);
INIT_LIST_HEAD(&xprt->free);
INIT_LIST_HEAD(&xprt->recv);
- INIT_WORK(&xprt->sock_connect, xprt_socket_connect, xprt);
- INIT_WORK(&xprt->task_cleanup, xprt_socket_autoclose, xprt);
+ INIT_WORK(&xprt->task_cleanup, xprt_autoclose, xprt);
init_timer(&xprt->timer);
xprt->timer.function = xprt_init_autodisconnect;
xprt->timer.data = (unsigned long) xprt;
xprt->last_used = jiffies;
- xprt->port = XPRT_MAX_RESVPORT;
-
- /* Set timeout parameters */
- if (to) {
- xprt->timeout = *to;
- } else
- xprt_default_timeout(&xprt->timeout, xprt->prot);
+ xprt->cwnd = RPC_INITCWND;
rpc_init_wait_queue(&xprt->pending, "xprt_pending");
rpc_init_wait_queue(&xprt->sending, "xprt_sending");
@@ -1529,139 +944,25 @@ xprt_setup(int proto, struct sockaddr_in *ap, struct rpc_timeout *to)
rpc_init_priority_wait_queue(&xprt->backlog, "xprt_backlog");
/* initialize free list */
- for (req = &xprt->slot[entries-1]; req >= &xprt->slot[0]; req--)
+ for (req = &xprt->slot[xprt->max_reqs-1]; req >= &xprt->slot[0]; req--)
list_add(&req->rq_list, &xprt->free);
xprt_init_xid(xprt);
- /* Check whether we want to use a reserved port */
- xprt->resvport = capable(CAP_NET_BIND_SERVICE) ? 1 : 0;
-
dprintk("RPC: created transport %p with %u slots\n", xprt,
xprt->max_reqs);
return xprt;
}
-/*
- * Bind to a reserved port
- */
-static inline int xprt_bindresvport(struct rpc_xprt *xprt, struct socket *sock)
-{
- struct sockaddr_in myaddr = {
- .sin_family = AF_INET,
- };
- int err, port;
-
- /* Were we already bound to a given port? Try to reuse it */
- port = xprt->port;
- do {
- myaddr.sin_port = htons(port);
- err = sock->ops->bind(sock, (struct sockaddr *) &myaddr,
- sizeof(myaddr));
- if (err == 0) {
- xprt->port = port;
- return 0;
- }
- if (--port == 0)
- port = XPRT_MAX_RESVPORT;
- } while (err == -EADDRINUSE && port != xprt->port);
-
- printk("RPC: Can't bind to reserved port (%d).\n", -err);
- return err;
-}
-
-static void
-xprt_bind_socket(struct rpc_xprt *xprt, struct socket *sock)
-{
- struct sock *sk = sock->sk;
-
- if (xprt->inet)
- return;
-
- write_lock_bh(&sk->sk_callback_lock);
- sk->sk_user_data = xprt;
- xprt->old_data_ready = sk->sk_data_ready;
- xprt->old_state_change = sk->sk_state_change;
- xprt->old_write_space = sk->sk_write_space;
- if (xprt->prot == IPPROTO_UDP) {
- sk->sk_data_ready = udp_data_ready;
- sk->sk_no_check = UDP_CSUM_NORCV;
- xprt_set_connected(xprt);
- } else {
- tcp_sk(sk)->nonagle = 1; /* disable Nagle's algorithm */
- sk->sk_data_ready = tcp_data_ready;
- sk->sk_state_change = tcp_state_change;
- xprt_clear_connected(xprt);
- }
- sk->sk_write_space = xprt_write_space;
-
- /* Reset to new socket */
- xprt->sock = sock;
- xprt->inet = sk;
- write_unlock_bh(&sk->sk_callback_lock);
-
- return;
-}
-
-/*
- * Set socket buffer length
- */
-void
-xprt_sock_setbufsize(struct rpc_xprt *xprt)
-{
- struct sock *sk = xprt->inet;
-
- if (xprt->stream)
- return;
- if (xprt->rcvsize) {
- sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
- sk->sk_rcvbuf = xprt->rcvsize * xprt->max_reqs * 2;
- }
- if (xprt->sndsize) {
- sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
- sk->sk_sndbuf = xprt->sndsize * xprt->max_reqs * 2;
- sk->sk_write_space(sk);
- }
-}
-
-/*
- * Datastream sockets are created here, but xprt_connect will create
- * and connect stream sockets.
- */
-static struct socket * xprt_create_socket(struct rpc_xprt *xprt, int proto, int resvport)
-{
- struct socket *sock;
- int type, err;
-
- dprintk("RPC: xprt_create_socket(%s %d)\n",
- (proto == IPPROTO_UDP)? "udp" : "tcp", proto);
-
- type = (proto == IPPROTO_UDP)? SOCK_DGRAM : SOCK_STREAM;
-
- if ((err = sock_create_kern(PF_INET, type, proto, &sock)) < 0) {
- printk("RPC: can't create socket (%d).\n", -err);
- return NULL;
- }
-
- /* If the caller has the capability, bind to a reserved port */
- if (resvport && xprt_bindresvport(xprt, sock) < 0) {
- printk("RPC: can't bind to reserved port.\n");
- goto failed;
- }
-
- return sock;
-
-failed:
- sock_release(sock);
- return NULL;
-}
-
-/*
- * Create an RPC client transport given the protocol and peer address.
+/**
+ * xprt_create_proto - create an RPC client transport
+ * @proto: requested transport protocol
+ * @sap: remote peer's address
+ * @to: timeout parameters for new transport
+ *
*/
-struct rpc_xprt *
-xprt_create_proto(int proto, struct sockaddr_in *sap, struct rpc_timeout *to)
+struct rpc_xprt *xprt_create_proto(int proto, struct sockaddr_in *sap, struct rpc_timeout *to)
{
struct rpc_xprt *xprt;
@@ -1673,46 +974,26 @@ xprt_create_proto(int proto, struct sockaddr_in *sap, struct rpc_timeout *to)
return xprt;
}
-/*
- * Prepare for transport shutdown.
- */
-static void
-xprt_shutdown(struct rpc_xprt *xprt)
+static void xprt_shutdown(struct rpc_xprt *xprt)
{
xprt->shutdown = 1;
rpc_wake_up(&xprt->sending);
rpc_wake_up(&xprt->resend);
- rpc_wake_up(&xprt->pending);
+ xprt_wake_pending_tasks(xprt, -EIO);
rpc_wake_up(&xprt->backlog);
- wake_up(&xprt->cong_wait);
del_timer_sync(&xprt->timer);
-
- /* synchronously wait for connect worker to finish */
- cancel_delayed_work(&xprt->sock_connect);
- flush_scheduled_work();
}
-/*
- * Clear the xprt backlog queue
- */
-static int
-xprt_clear_backlog(struct rpc_xprt *xprt) {
- rpc_wake_up_next(&xprt->backlog);
- wake_up(&xprt->cong_wait);
- return 1;
-}
-
-/*
- * Destroy an RPC transport, killing off all requests.
+/**
+ * xprt_destroy - destroy an RPC transport, killing off all requests.
+ * @xprt: transport to destroy
+ *
*/
-int
-xprt_destroy(struct rpc_xprt *xprt)
+int xprt_destroy(struct rpc_xprt *xprt)
{
dprintk("RPC: destroying transport %p\n", xprt);
xprt_shutdown(xprt);
- xprt_disconnect(xprt);
- xprt_close(xprt);
- kfree(xprt->slot);
+ xprt->ops->destroy(xprt);
kfree(xprt);
return 0;
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
new file mode 100644
index 00000000000..2e1529217e6
--- /dev/null
+++ b/net/sunrpc/xprtsock.c
@@ -0,0 +1,1252 @@
+/*
+ * linux/net/sunrpc/xprtsock.c
+ *
+ * Client-side transport implementation for sockets.
+ *
+ * TCP callback races fixes (C) 1998 Red Hat Software <alan@redhat.com>
+ * TCP send fixes (C) 1998 Red Hat Software <alan@redhat.com>
+ * TCP NFS related read + write fixes
+ * (C) 1999 Dave Airlie, University of Limerick, Ireland <airlied@linux.ie>
+ *
+ * Rewrite of larges part of the code in order to stabilize TCP stuff.
+ * Fix behaviour when socket buffer is full.
+ * (C) 1999 Trond Myklebust <trond.myklebust@fys.uio.no>
+ *
+ * IP socket transport implementation, (C) 2005 Chuck Lever <cel@netapp.com>
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/capability.h>
+#include <linux/sched.h>
+#include <linux/pagemap.h>
+#include <linux/errno.h>
+#include <linux/socket.h>
+#include <linux/in.h>
+#include <linux/net.h>
+#include <linux/mm.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/file.h>
+
+#include <net/sock.h>
+#include <net/checksum.h>
+#include <net/udp.h>
+#include <net/tcp.h>
+
+/*
+ * How many times to try sending a request on a socket before waiting
+ * for the socket buffer to clear.
+ */
+#define XS_SENDMSG_RETRY (10U)
+
+/*
+ * Time out for an RPC UDP socket connect. UDP socket connects are
+ * synchronous, but we set a timeout anyway in case of resource
+ * exhaustion on the local host.
+ */
+#define XS_UDP_CONN_TO (5U * HZ)
+
+/*
+ * Wait duration for an RPC TCP connection to be established. Solaris
+ * NFS over TCP uses 60 seconds, for example, which is in line with how
+ * long a server takes to reboot.
+ */
+#define XS_TCP_CONN_TO (60U * HZ)
+
+/*
+ * Wait duration for a reply from the RPC portmapper.
+ */
+#define XS_BIND_TO (60U * HZ)
+
+/*
+ * Delay if a UDP socket connect error occurs. This is most likely some
+ * kind of resource problem on the local host.
+ */
+#define XS_UDP_REEST_TO (2U * HZ)
+
+/*
+ * The reestablish timeout allows clients to delay for a bit before attempting
+ * to reconnect to a server that just dropped our connection.
+ *
+ * We implement an exponential backoff when trying to reestablish a TCP
+ * transport connection with the server. Some servers like to drop a TCP
+ * connection when they are overworked, so we start with a short timeout and
+ * increase over time if the server is down or not responding.
+ */
+#define XS_TCP_INIT_REEST_TO (3U * HZ)
+#define XS_TCP_MAX_REEST_TO (5U * 60 * HZ)
+
+/*
+ * TCP idle timeout; client drops the transport socket if it is idle
+ * for this long. Note that we also timeout UDP sockets to prevent
+ * holding port numbers when there is no RPC traffic.
+ */
+#define XS_IDLE_DISC_TO (5U * 60 * HZ)
+
+#ifdef RPC_DEBUG
+# undef RPC_DEBUG_DATA
+# define RPCDBG_FACILITY RPCDBG_TRANS
+#endif
+
+#ifdef RPC_DEBUG_DATA
+static void xs_pktdump(char *msg, u32 *packet, unsigned int count)
+{
+ u8 *buf = (u8 *) packet;
+ int j;
+
+ dprintk("RPC: %s\n", msg);
+ for (j = 0; j < count && j < 128; j += 4) {
+ if (!(j & 31)) {
+ if (j)
+ dprintk("\n");
+ dprintk("0x%04x ", j);
+ }
+ dprintk("%02x%02x%02x%02x ",
+ buf[j], buf[j+1], buf[j+2], buf[j+3]);
+ }
+ dprintk("\n");
+}
+#else
+static inline void xs_pktdump(char *msg, u32 *packet, unsigned int count)
+{
+ /* NOP */
+}
+#endif
+
+#define XS_SENDMSG_FLAGS (MSG_DONTWAIT | MSG_NOSIGNAL)
+
+static inline int xs_send_head(struct socket *sock, struct sockaddr *addr, int addrlen, struct xdr_buf *xdr, unsigned int base, unsigned int len)
+{
+ struct kvec iov = {
+ .iov_base = xdr->head[0].iov_base + base,
+ .iov_len = len - base,
+ };
+ struct msghdr msg = {
+ .msg_name = addr,
+ .msg_namelen = addrlen,
+ .msg_flags = XS_SENDMSG_FLAGS,
+ };
+
+ if (xdr->len > len)
+ msg.msg_flags |= MSG_MORE;
+
+ if (likely(iov.iov_len))
+ return kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len);
+ return kernel_sendmsg(sock, &msg, NULL, 0, 0);
+}
+
+static int xs_send_tail(struct socket *sock, struct xdr_buf *xdr, unsigned int base, unsigned int len)
+{
+ struct kvec iov = {
+ .iov_base = xdr->tail[0].iov_base + base,
+ .iov_len = len - base,
+ };
+ struct msghdr msg = {
+ .msg_flags = XS_SENDMSG_FLAGS,
+ };
+
+ return kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len);
+}
+
+/**
+ * xs_sendpages - write pages directly to a socket
+ * @sock: socket to send on
+ * @addr: UDP only -- address of destination
+ * @addrlen: UDP only -- length of destination address
+ * @xdr: buffer containing this request
+ * @base: starting position in the buffer
+ *
+ */
+static inline int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, struct xdr_buf *xdr, unsigned int base)
+{
+ struct page **ppage = xdr->pages;
+ unsigned int len, pglen = xdr->page_len;
+ int err, ret = 0;
+ ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int);
+
+ if (unlikely(!sock))
+ return -ENOTCONN;
+
+ clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags);
+
+ len = xdr->head[0].iov_len;
+ if (base < len || (addr != NULL && base == 0)) {
+ err = xs_send_head(sock, addr, addrlen, xdr, base, len);
+ if (ret == 0)
+ ret = err;
+ else if (err > 0)
+ ret += err;
+ if (err != (len - base))
+ goto out;
+ base = 0;
+ } else
+ base -= len;
+
+ if (unlikely(pglen == 0))
+ goto copy_tail;
+ if (unlikely(base >= pglen)) {
+ base -= pglen;
+ goto copy_tail;
+ }
+ if (base || xdr->page_base) {
+ pglen -= base;
+ base += xdr->page_base;
+ ppage += base >> PAGE_CACHE_SHIFT;
+ base &= ~PAGE_CACHE_MASK;
+ }
+
+ sendpage = sock->ops->sendpage ? : sock_no_sendpage;
+ do {
+ int flags = XS_SENDMSG_FLAGS;
+
+ len = PAGE_CACHE_SIZE;
+ if (base)
+ len -= base;
+ if (pglen < len)
+ len = pglen;
+
+ if (pglen != len || xdr->tail[0].iov_len != 0)
+ flags |= MSG_MORE;
+
+ /* Hmm... We might be dealing with highmem pages */
+ if (PageHighMem(*ppage))
+ sendpage = sock_no_sendpage;
+ err = sendpage(sock, *ppage, base, len, flags);
+ if (ret == 0)
+ ret = err;
+ else if (err > 0)
+ ret += err;
+ if (err != len)
+ goto out;
+ base = 0;
+ ppage++;
+ } while ((pglen -= len) != 0);
+copy_tail:
+ len = xdr->tail[0].iov_len;
+ if (base < len) {
+ err = xs_send_tail(sock, xdr, base, len);
+ if (ret == 0)
+ ret = err;
+ else if (err > 0)
+ ret += err;
+ }
+out:
+ return ret;
+}
+
+/**
+ * xs_nospace - place task on wait queue if transmit was incomplete
+ * @task: task to put to sleep
+ *
+ */
+static void xs_nospace(struct rpc_task *task)
+{
+ struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_xprt *xprt = req->rq_xprt;
+
+ dprintk("RPC: %4d xmit incomplete (%u left of %u)\n",
+ task->tk_pid, req->rq_slen - req->rq_bytes_sent,
+ req->rq_slen);
+
+ if (test_bit(SOCK_ASYNC_NOSPACE, &xprt->sock->flags)) {
+ /* Protect against races with write_space */
+ spin_lock_bh(&xprt->transport_lock);
+
+ /* Don't race with disconnect */
+ if (!xprt_connected(xprt))
+ task->tk_status = -ENOTCONN;
+ else if (test_bit(SOCK_NOSPACE, &xprt->sock->flags))
+ xprt_wait_for_buffer_space(task);
+
+ spin_unlock_bh(&xprt->transport_lock);
+ } else
+ /* Keep holding the socket if it is blocked */
+ rpc_delay(task, HZ>>4);
+}
+
+/**
+ * xs_udp_send_request - write an RPC request to a UDP socket
+ * @task: address of RPC task that manages the state of an RPC request
+ *
+ * Return values:
+ * 0: The request has been sent
+ * EAGAIN: The socket was blocked, please call again later to
+ * complete the request
+ * ENOTCONN: Caller needs to invoke connect logic then call again
+ * other: Some other error occured, the request was not sent
+ */
+static int xs_udp_send_request(struct rpc_task *task)
+{
+ struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_xprt *xprt = req->rq_xprt;
+ struct xdr_buf *xdr = &req->rq_snd_buf;
+ int status;
+
+ xs_pktdump("packet data:",
+ req->rq_svec->iov_base,
+ req->rq_svec->iov_len);
+
+ req->rq_xtime = jiffies;
+ status = xs_sendpages(xprt->sock, (struct sockaddr *) &xprt->addr,
+ sizeof(xprt->addr), xdr, req->rq_bytes_sent);
+
+ dprintk("RPC: xs_udp_send_request(%u) = %d\n",
+ xdr->len - req->rq_bytes_sent, status);
+
+ if (likely(status >= (int) req->rq_slen))
+ return 0;
+
+ /* Still some bytes left; set up for a retry later. */
+ if (status > 0)
+ status = -EAGAIN;
+
+ switch (status) {
+ case -ENETUNREACH:
+ case -EPIPE:
+ case -ECONNREFUSED:
+ /* When the server has died, an ICMP port unreachable message
+ * prompts ECONNREFUSED. */
+ break;
+ case -EAGAIN:
+ xs_nospace(task);
+ break;
+ default:
+ dprintk("RPC: sendmsg returned unrecognized error %d\n",
+ -status);
+ break;
+ }
+
+ return status;
+}
+
+static inline void xs_encode_tcp_record_marker(struct xdr_buf *buf)
+{
+ u32 reclen = buf->len - sizeof(rpc_fraghdr);
+ rpc_fraghdr *base = buf->head[0].iov_base;
+ *base = htonl(RPC_LAST_STREAM_FRAGMENT | reclen);
+}
+
+/**
+ * xs_tcp_send_request - write an RPC request to a TCP socket
+ * @task: address of RPC task that manages the state of an RPC request
+ *
+ * Return values:
+ * 0: The request has been sent
+ * EAGAIN: The socket was blocked, please call again later to
+ * complete the request
+ * ENOTCONN: Caller needs to invoke connect logic then call again
+ * other: Some other error occured, the request was not sent
+ *
+ * XXX: In the case of soft timeouts, should we eventually give up
+ * if sendmsg is not able to make progress?
+ */
+static int xs_tcp_send_request(struct rpc_task *task)
+{
+ struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_xprt *xprt = req->rq_xprt;
+ struct xdr_buf *xdr = &req->rq_snd_buf;
+ int status, retry = 0;
+
+ xs_encode_tcp_record_marker(&req->rq_snd_buf);
+
+ xs_pktdump("packet data:",
+ req->rq_svec->iov_base,
+ req->rq_svec->iov_len);
+
+ /* Continue transmitting the packet/record. We must be careful
+ * to cope with writespace callbacks arriving _after_ we have
+ * called sendmsg(). */
+ while (1) {
+ req->rq_xtime = jiffies;
+ status = xs_sendpages(xprt->sock, NULL, 0, xdr,
+ req->rq_bytes_sent);
+
+ dprintk("RPC: xs_tcp_send_request(%u) = %d\n",
+ xdr->len - req->rq_bytes_sent, status);
+
+ if (unlikely(status < 0))
+ break;
+
+ /* If we've sent the entire packet, immediately
+ * reset the count of bytes sent. */
+ req->rq_bytes_sent += status;
+ if (likely(req->rq_bytes_sent >= req->rq_slen)) {
+ req->rq_bytes_sent = 0;
+ return 0;
+ }
+
+ status = -EAGAIN;
+ if (retry++ > XS_SENDMSG_RETRY)
+ break;
+ }
+
+ switch (status) {
+ case -EAGAIN:
+ xs_nospace(task);
+ break;
+ case -ECONNREFUSED:
+ case -ECONNRESET:
+ case -ENOTCONN:
+ case -EPIPE:
+ status = -ENOTCONN;
+ break;
+ default:
+ dprintk("RPC: sendmsg returned unrecognized error %d\n",
+ -status);
+ xprt_disconnect(xprt);
+ break;
+ }
+
+ return status;
+}
+
+/**
+ * xs_close - close a socket
+ * @xprt: transport
+ *
+ * This is used when all requests are complete; ie, no DRC state remains
+ * on the server we want to save.
+ */
+static void xs_close(struct rpc_xprt *xprt)
+{
+ struct socket *sock = xprt->sock;
+ struct sock *sk = xprt->inet;
+
+ if (!sk)
+ return;
+
+ dprintk("RPC: xs_close xprt %p\n", xprt);
+
+ write_lock_bh(&sk->sk_callback_lock);
+ xprt->inet = NULL;
+ xprt->sock = NULL;
+
+ sk->sk_user_data = NULL;
+ sk->sk_data_ready = xprt->old_data_ready;
+ sk->sk_state_change = xprt->old_state_change;
+ sk->sk_write_space = xprt->old_write_space;
+ write_unlock_bh(&sk->sk_callback_lock);
+
+ sk->sk_no_check = 0;
+
+ sock_release(sock);
+}
+
+/**
+ * xs_destroy - prepare to shutdown a transport
+ * @xprt: doomed transport
+ *
+ */
+static void xs_destroy(struct rpc_xprt *xprt)
+{
+ dprintk("RPC: xs_destroy xprt %p\n", xprt);
+
+ cancel_delayed_work(&xprt->connect_worker);
+ flush_scheduled_work();
+
+ xprt_disconnect(xprt);
+ xs_close(xprt);
+ kfree(xprt->slot);
+}
+
+static inline struct rpc_xprt *xprt_from_sock(struct sock *sk)
+{
+ return (struct rpc_xprt *) sk->sk_user_data;
+}
+
+/**
+ * xs_udp_data_ready - "data ready" callback for UDP sockets
+ * @sk: socket with data to read
+ * @len: how much data to read
+ *
+ */
+static void xs_udp_data_ready(struct sock *sk, int len)
+{
+ struct rpc_task *task;
+ struct rpc_xprt *xprt;
+ struct rpc_rqst *rovr;
+ struct sk_buff *skb;
+ int err, repsize, copied;
+ u32 _xid, *xp;
+
+ read_lock(&sk->sk_callback_lock);
+ dprintk("RPC: xs_udp_data_ready...\n");
+ if (!(xprt = xprt_from_sock(sk)))
+ goto out;
+
+ if ((skb = skb_recv_datagram(sk, 0, 1, &err)) == NULL)
+ goto out;
+
+ if (xprt->shutdown)
+ goto dropit;
+
+ repsize = skb->len - sizeof(struct udphdr);
+ if (repsize < 4) {
+ dprintk("RPC: impossible RPC reply size %d!\n", repsize);
+ goto dropit;
+ }
+
+ /* Copy the XID from the skb... */
+ xp = skb_header_pointer(skb, sizeof(struct udphdr),
+ sizeof(_xid), &_xid);
+ if (xp == NULL)
+ goto dropit;
+
+ /* Look up and lock the request corresponding to the given XID */
+ spin_lock(&xprt->transport_lock);
+ rovr = xprt_lookup_rqst(xprt, *xp);
+ if (!rovr)
+ goto out_unlock;
+ task = rovr->rq_task;
+
+ if ((copied = rovr->rq_private_buf.buflen) > repsize)
+ copied = repsize;
+
+ /* Suck it into the iovec, verify checksum if not done by hw. */
+ if (csum_partial_copy_to_xdr(&rovr->rq_private_buf, skb))
+ goto out_unlock;
+
+ /* Something worked... */
+ dst_confirm(skb->dst);
+
+ xprt_adjust_cwnd(task, copied);
+ xprt_update_rtt(task);
+ xprt_complete_rqst(task, copied);
+
+ out_unlock:
+ spin_unlock(&xprt->transport_lock);
+ dropit:
+ skb_free_datagram(sk, skb);
+ out:
+ read_unlock(&sk->sk_callback_lock);
+}
+
+static inline size_t xs_tcp_copy_data(skb_reader_t *desc, void *p, size_t len)
+{
+ if (len > desc->count)
+ len = desc->count;
+ if (skb_copy_bits(desc->skb, desc->offset, p, len)) {
+ dprintk("RPC: failed to copy %zu bytes from skb. %zu bytes remain\n",
+ len, desc->count);
+ return 0;
+ }
+ desc->offset += len;
+ desc->count -= len;
+ dprintk("RPC: copied %zu bytes from skb. %zu bytes remain\n",
+ len, desc->count);
+ return len;
+}
+
+static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, skb_reader_t *desc)
+{
+ size_t len, used;
+ char *p;
+
+ p = ((char *) &xprt->tcp_recm) + xprt->tcp_offset;
+ len = sizeof(xprt->tcp_recm) - xprt->tcp_offset;
+ used = xs_tcp_copy_data(desc, p, len);
+ xprt->tcp_offset += used;
+ if (used != len)
+ return;
+
+ xprt->tcp_reclen = ntohl(xprt->tcp_recm);
+ if (xprt->tcp_reclen & RPC_LAST_STREAM_FRAGMENT)
+ xprt->tcp_flags |= XPRT_LAST_FRAG;
+ else
+ xprt->tcp_flags &= ~XPRT_LAST_FRAG;
+ xprt->tcp_reclen &= RPC_FRAGMENT_SIZE_MASK;
+
+ xprt->tcp_flags &= ~XPRT_COPY_RECM;
+ xprt->tcp_offset = 0;
+
+ /* Sanity check of the record length */
+ if (unlikely(xprt->tcp_reclen < 4)) {
+ dprintk("RPC: invalid TCP record fragment length\n");
+ xprt_disconnect(xprt);
+ return;
+ }
+ dprintk("RPC: reading TCP record fragment of length %d\n",
+ xprt->tcp_reclen);
+}
+
+static void xs_tcp_check_recm(struct rpc_xprt *xprt)
+{
+ dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u, tcp_flags = %lx\n",
+ xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen, xprt->tcp_flags);
+ if (xprt->tcp_offset == xprt->tcp_reclen) {
+ xprt->tcp_flags |= XPRT_COPY_RECM;
+ xprt->tcp_offset = 0;
+ if (xprt->tcp_flags & XPRT_LAST_FRAG) {
+ xprt->tcp_flags &= ~XPRT_COPY_DATA;
+ xprt->tcp_flags |= XPRT_COPY_XID;
+ xprt->tcp_copied = 0;
+ }
+ }
+}
+
+static inline void xs_tcp_read_xid(struct rpc_xprt *xprt, skb_reader_t *desc)
+{
+ size_t len, used;
+ char *p;
+
+ len = sizeof(xprt->tcp_xid) - xprt->tcp_offset;
+ dprintk("RPC: reading XID (%Zu bytes)\n", len);
+ p = ((char *) &xprt->tcp_xid) + xprt->tcp_offset;
+ used = xs_tcp_copy_data(desc, p, len);
+ xprt->tcp_offset += used;
+ if (used != len)
+ return;
+ xprt->tcp_flags &= ~XPRT_COPY_XID;
+ xprt->tcp_flags |= XPRT_COPY_DATA;
+ xprt->tcp_copied = 4;
+ dprintk("RPC: reading reply for XID %08x\n",
+ ntohl(xprt->tcp_xid));
+ xs_tcp_check_recm(xprt);
+}
+
+static inline void xs_tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc)
+{
+ struct rpc_rqst *req;
+ struct xdr_buf *rcvbuf;
+ size_t len;
+ ssize_t r;
+
+ /* Find and lock the request corresponding to this xid */
+ spin_lock(&xprt->transport_lock);
+ req = xprt_lookup_rqst(xprt, xprt->tcp_xid);
+ if (!req) {
+ xprt->tcp_flags &= ~XPRT_COPY_DATA;
+ dprintk("RPC: XID %08x request not found!\n",
+ ntohl(xprt->tcp_xid));
+ spin_unlock(&xprt->transport_lock);
+ return;
+ }
+
+ rcvbuf = &req->rq_private_buf;
+ len = desc->count;
+ if (len > xprt->tcp_reclen - xprt->tcp_offset) {
+ skb_reader_t my_desc;
+
+ len = xprt->tcp_reclen - xprt->tcp_offset;
+ memcpy(&my_desc, desc, sizeof(my_desc));
+ my_desc.count = len;
+ r = xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
+ &my_desc, xs_tcp_copy_data);
+ desc->count -= r;
+ desc->offset += r;
+ } else
+ r = xdr_partial_copy_from_skb(rcvbuf, xprt->tcp_copied,
+ desc, xs_tcp_copy_data);
+
+ if (r > 0) {
+ xprt->tcp_copied += r;
+ xprt->tcp_offset += r;
+ }
+ if (r != len) {
+ /* Error when copying to the receive buffer,
+ * usually because we weren't able to allocate
+ * additional buffer pages. All we can do now
+ * is turn off XPRT_COPY_DATA, so the request
+ * will not receive any additional updates,
+ * and time out.
+ * Any remaining data from this record will
+ * be discarded.
+ */
+ xprt->tcp_flags &= ~XPRT_COPY_DATA;
+ dprintk("RPC: XID %08x truncated request\n",
+ ntohl(xprt->tcp_xid));
+ dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u\n",
+ xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen);
+ goto out;
+ }
+
+ dprintk("RPC: XID %08x read %Zd bytes\n",
+ ntohl(xprt->tcp_xid), r);
+ dprintk("RPC: xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u\n",
+ xprt, xprt->tcp_copied, xprt->tcp_offset, xprt->tcp_reclen);
+
+ if (xprt->tcp_copied == req->rq_private_buf.buflen)
+ xprt->tcp_flags &= ~XPRT_COPY_DATA;
+ else if (xprt->tcp_offset == xprt->tcp_reclen) {
+ if (xprt->tcp_flags & XPRT_LAST_FRAG)
+ xprt->tcp_flags &= ~XPRT_COPY_DATA;
+ }
+
+out:
+ if (!(xprt->tcp_flags & XPRT_COPY_DATA))
+ xprt_complete_rqst(req->rq_task, xprt->tcp_copied);
+ spin_unlock(&xprt->transport_lock);
+ xs_tcp_check_recm(xprt);
+}
+
+static inline void xs_tcp_read_discard(struct rpc_xprt *xprt, skb_reader_t *desc)
+{
+ size_t len;
+
+ len = xprt->tcp_reclen - xprt->tcp_offset;
+ if (len > desc->count)
+ len = desc->count;
+ desc->count -= len;
+ desc->offset += len;
+ xprt->tcp_offset += len;
+ dprintk("RPC: discarded %Zu bytes\n", len);
+ xs_tcp_check_recm(xprt);
+}
+
+static int xs_tcp_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb, unsigned int offset, size_t len)
+{
+ struct rpc_xprt *xprt = rd_desc->arg.data;
+ skb_reader_t desc = {
+ .skb = skb,
+ .offset = offset,
+ .count = len,
+ .csum = 0
+ };
+
+ dprintk("RPC: xs_tcp_data_recv started\n");
+ do {
+ /* Read in a new fragment marker if necessary */
+ /* Can we ever really expect to get completely empty fragments? */
+ if (xprt->tcp_flags & XPRT_COPY_RECM) {
+ xs_tcp_read_fraghdr(xprt, &desc);
+ continue;
+ }
+ /* Read in the xid if necessary */
+ if (xprt->tcp_flags & XPRT_COPY_XID) {
+ xs_tcp_read_xid(xprt, &desc);
+ continue;
+ }
+ /* Read in the request data */
+ if (xprt->tcp_flags & XPRT_COPY_DATA) {
+ xs_tcp_read_request(xprt, &desc);
+ continue;
+ }
+ /* Skip over any trailing bytes on short reads */
+ xs_tcp_read_discard(xprt, &desc);
+ } while (desc.count);
+ dprintk("RPC: xs_tcp_data_recv done\n");
+ return len - desc.count;
+}
+
+/**
+ * xs_tcp_data_ready - "data ready" callback for TCP sockets
+ * @sk: socket with data to read
+ * @bytes: how much data to read
+ *
+ */
+static void xs_tcp_data_ready(struct sock *sk, int bytes)
+{
+ struct rpc_xprt *xprt;
+ read_descriptor_t rd_desc;
+
+ read_lock(&sk->sk_callback_lock);
+ dprintk("RPC: xs_tcp_data_ready...\n");
+ if (!(xprt = xprt_from_sock(sk)))
+ goto out;
+ if (xprt->shutdown)
+ goto out;
+
+ /* We use rd_desc to pass struct xprt to xs_tcp_data_recv */
+ rd_desc.arg.data = xprt;
+ rd_desc.count = 65536;
+ tcp_read_sock(sk, &rd_desc, xs_tcp_data_recv);
+out:
+ read_unlock(&sk->sk_callback_lock);
+}
+
+/**
+ * xs_tcp_state_change - callback to handle TCP socket state changes
+ * @sk: socket whose state has changed
+ *
+ */
+static void xs_tcp_state_change(struct sock *sk)
+{
+ struct rpc_xprt *xprt;
+
+ read_lock(&sk->sk_callback_lock);
+ if (!(xprt = xprt_from_sock(sk)))
+ goto out;
+ dprintk("RPC: xs_tcp_state_change client %p...\n", xprt);
+ dprintk("RPC: state %x conn %d dead %d zapped %d\n",
+ sk->sk_state, xprt_connected(xprt),
+ sock_flag(sk, SOCK_DEAD),
+ sock_flag(sk, SOCK_ZAPPED));
+
+ switch (sk->sk_state) {
+ case TCP_ESTABLISHED:
+ spin_lock_bh(&xprt->transport_lock);
+ if (!xprt_test_and_set_connected(xprt)) {
+ /* Reset TCP record info */
+ xprt->tcp_offset = 0;
+ xprt->tcp_reclen = 0;
+ xprt->tcp_copied = 0;
+ xprt->tcp_flags = XPRT_COPY_RECM | XPRT_COPY_XID;
+ xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO;
+ xprt_wake_pending_tasks(xprt, 0);
+ }
+ spin_unlock_bh(&xprt->transport_lock);
+ break;
+ case TCP_SYN_SENT:
+ case TCP_SYN_RECV:
+ break;
+ default:
+ xprt_disconnect(xprt);
+ break;
+ }
+ out:
+ read_unlock(&sk->sk_callback_lock);
+}
+
+/**
+ * xs_udp_write_space - callback invoked when socket buffer space
+ * becomes available
+ * @sk: socket whose state has changed
+ *
+ * Called when more output buffer space is available for this socket.
+ * We try not to wake our writers until they can make "significant"
+ * progress, otherwise we'll waste resources thrashing kernel_sendmsg
+ * with a bunch of small requests.
+ */
+static void xs_udp_write_space(struct sock *sk)
+{
+ read_lock(&sk->sk_callback_lock);
+
+ /* from net/core/sock.c:sock_def_write_space */
+ if (sock_writeable(sk)) {
+ struct socket *sock;
+ struct rpc_xprt *xprt;
+
+ if (unlikely(!(sock = sk->sk_socket)))
+ goto out;
+ if (unlikely(!(xprt = xprt_from_sock(sk))))
+ goto out;
+ if (unlikely(!test_and_clear_bit(SOCK_NOSPACE, &sock->flags)))
+ goto out;
+
+ xprt_write_space(xprt);
+ }
+
+ out:
+ read_unlock(&sk->sk_callback_lock);
+}
+
+/**
+ * xs_tcp_write_space - callback invoked when socket buffer space
+ * becomes available
+ * @sk: socket whose state has changed
+ *
+ * Called when more output buffer space is available for this socket.
+ * We try not to wake our writers until they can make "significant"
+ * progress, otherwise we'll waste resources thrashing kernel_sendmsg
+ * with a bunch of small requests.
+ */
+static void xs_tcp_write_space(struct sock *sk)
+{
+ read_lock(&sk->sk_callback_lock);
+
+ /* from net/core/stream.c:sk_stream_write_space */
+ if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk)) {
+ struct socket *sock;
+ struct rpc_xprt *xprt;
+
+ if (unlikely(!(sock = sk->sk_socket)))
+ goto out;
+ if (unlikely(!(xprt = xprt_from_sock(sk))))
+ goto out;
+ if (unlikely(!test_and_clear_bit(SOCK_NOSPACE, &sock->flags)))
+ goto out;
+
+ xprt_write_space(xprt);
+ }
+
+ out:
+ read_unlock(&sk->sk_callback_lock);
+}
+
+static void xs_udp_do_set_buffer_size(struct rpc_xprt *xprt)
+{
+ struct sock *sk = xprt->inet;
+
+ if (xprt->rcvsize) {
+ sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
+ sk->sk_rcvbuf = xprt->rcvsize * xprt->max_reqs * 2;
+ }
+ if (xprt->sndsize) {
+ sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
+ sk->sk_sndbuf = xprt->sndsize * xprt->max_reqs * 2;
+ sk->sk_write_space(sk);
+ }
+}
+
+/**
+ * xs_udp_set_buffer_size - set send and receive limits
+ * @xprt: generic transport
+ * @sndsize: requested size of send buffer, in bytes
+ * @rcvsize: requested size of receive buffer, in bytes
+ *
+ * Set socket send and receive buffer size limits.
+ */
+static void xs_udp_set_buffer_size(struct rpc_xprt *xprt, size_t sndsize, size_t rcvsize)
+{
+ xprt->sndsize = 0;
+ if (sndsize)
+ xprt->sndsize = sndsize + 1024;
+ xprt->rcvsize = 0;
+ if (rcvsize)
+ xprt->rcvsize = rcvsize + 1024;
+
+ xs_udp_do_set_buffer_size(xprt);
+}
+
+/**
+ * xs_udp_timer - called when a retransmit timeout occurs on a UDP transport
+ * @task: task that timed out
+ *
+ * Adjust the congestion window after a retransmit timeout has occurred.
+ */
+static void xs_udp_timer(struct rpc_task *task)
+{
+ xprt_adjust_cwnd(task, -ETIMEDOUT);
+}
+
+static int xs_bindresvport(struct rpc_xprt *xprt, struct socket *sock)
+{
+ struct sockaddr_in myaddr = {
+ .sin_family = AF_INET,
+ };
+ int err;
+ unsigned short port = xprt->port;
+
+ do {
+ myaddr.sin_port = htons(port);
+ err = sock->ops->bind(sock, (struct sockaddr *) &myaddr,
+ sizeof(myaddr));
+ if (err == 0) {
+ xprt->port = port;
+ dprintk("RPC: xs_bindresvport bound to port %u\n",
+ port);
+ return 0;
+ }
+ if (port <= xprt_min_resvport)
+ port = xprt_max_resvport;
+ else
+ port--;
+ } while (err == -EADDRINUSE && port != xprt->port);
+
+ dprintk("RPC: can't bind to reserved port (%d).\n", -err);
+ return err;
+}
+
+/**
+ * xs_udp_connect_worker - set up a UDP socket
+ * @args: RPC transport to connect
+ *
+ * Invoked by a work queue tasklet.
+ */
+static void xs_udp_connect_worker(void *args)
+{
+ struct rpc_xprt *xprt = (struct rpc_xprt *) args;
+ struct socket *sock = xprt->sock;
+ int err, status = -EIO;
+
+ if (xprt->shutdown || xprt->addr.sin_port == 0)
+ goto out;
+
+ dprintk("RPC: xs_udp_connect_worker for xprt %p\n", xprt);
+
+ /* Start by resetting any existing state */
+ xs_close(xprt);
+
+ if ((err = sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock)) < 0) {
+ dprintk("RPC: can't create UDP transport socket (%d).\n", -err);
+ goto out;
+ }
+
+ if (xprt->resvport && xs_bindresvport(xprt, sock) < 0) {
+ sock_release(sock);
+ goto out;
+ }
+
+ if (!xprt->inet) {
+ struct sock *sk = sock->sk;
+
+ write_lock_bh(&sk->sk_callback_lock);
+
+ sk->sk_user_data = xprt;
+ xprt->old_data_ready = sk->sk_data_ready;
+ xprt->old_state_change = sk->sk_state_change;
+ xprt->old_write_space = sk->sk_write_space;
+ sk->sk_data_ready = xs_udp_data_ready;
+ sk->sk_write_space = xs_udp_write_space;
+ sk->sk_no_check = UDP_CSUM_NORCV;
+
+ xprt_set_connected(xprt);
+
+ /* Reset to new socket */
+ xprt->sock = sock;
+ xprt->inet = sk;
+
+ write_unlock_bh(&sk->sk_callback_lock);
+ }
+ xs_udp_do_set_buffer_size(xprt);
+ status = 0;
+out:
+ xprt_wake_pending_tasks(xprt, status);
+ xprt_clear_connecting(xprt);
+}
+
+/*
+ * We need to preserve the port number so the reply cache on the server can
+ * find our cached RPC replies when we get around to reconnecting.
+ */
+static void xs_tcp_reuse_connection(struct rpc_xprt *xprt)
+{
+ int result;
+ struct socket *sock = xprt->sock;
+ struct sockaddr any;
+
+ dprintk("RPC: disconnecting xprt %p to reuse port\n", xprt);
+
+ /*
+ * Disconnect the transport socket by doing a connect operation
+ * with AF_UNSPEC. This should return immediately...
+ */
+ memset(&any, 0, sizeof(any));
+ any.sa_family = AF_UNSPEC;
+ result = sock->ops->connect(sock, &any, sizeof(any), 0);
+ if (result)
+ dprintk("RPC: AF_UNSPEC connect return code %d\n",
+ result);
+}
+
+/**
+ * xs_tcp_connect_worker - connect a TCP socket to a remote endpoint
+ * @args: RPC transport to connect
+ *
+ * Invoked by a work queue tasklet.
+ */
+static void xs_tcp_connect_worker(void *args)
+{
+ struct rpc_xprt *xprt = (struct rpc_xprt *)args;
+ struct socket *sock = xprt->sock;
+ int err, status = -EIO;
+
+ if (xprt->shutdown || xprt->addr.sin_port == 0)
+ goto out;
+
+ dprintk("RPC: xs_tcp_connect_worker for xprt %p\n", xprt);
+
+ if (!xprt->sock) {
+ /* start from scratch */
+ if ((err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &sock)) < 0) {
+ dprintk("RPC: can't create TCP transport socket (%d).\n", -err);
+ goto out;
+ }
+
+ if (xprt->resvport && xs_bindresvport(xprt, sock) < 0) {
+ sock_release(sock);
+ goto out;
+ }
+ } else
+ /* "close" the socket, preserving the local port */
+ xs_tcp_reuse_connection(xprt);
+
+ if (!xprt->inet) {
+ struct sock *sk = sock->sk;
+
+ write_lock_bh(&sk->sk_callback_lock);
+
+ sk->sk_user_data = xprt;
+ xprt->old_data_ready = sk->sk_data_ready;
+ xprt->old_state_change = sk->sk_state_change;
+ xprt->old_write_space = sk->sk_write_space;
+ sk->sk_data_ready = xs_tcp_data_ready;
+ sk->sk_state_change = xs_tcp_state_change;
+ sk->sk_write_space = xs_tcp_write_space;
+
+ /* socket options */
+ sk->sk_userlocks |= SOCK_BINDPORT_LOCK;
+ sock_reset_flag(sk, SOCK_LINGER);
+ tcp_sk(sk)->linger2 = 0;
+ tcp_sk(sk)->nonagle |= TCP_NAGLE_OFF;
+
+ xprt_clear_connected(xprt);
+
+ /* Reset to new socket */
+ xprt->sock = sock;
+ xprt->inet = sk;
+
+ write_unlock_bh(&sk->sk_callback_lock);
+ }
+
+ /* Tell the socket layer to start connecting... */
+ status = sock->ops->connect(sock, (struct sockaddr *) &xprt->addr,
+ sizeof(xprt->addr), O_NONBLOCK);
+ dprintk("RPC: %p connect status %d connected %d sock state %d\n",
+ xprt, -status, xprt_connected(xprt), sock->sk->sk_state);
+ if (status < 0) {
+ switch (status) {
+ case -EINPROGRESS:
+ case -EALREADY:
+ goto out_clear;
+ case -ECONNREFUSED:
+ case -ECONNRESET:
+ /* retry with existing socket, after a delay */
+ break;
+ default:
+ /* get rid of existing socket, and retry */
+ xs_close(xprt);
+ break;
+ }
+ }
+out:
+ xprt_wake_pending_tasks(xprt, status);
+out_clear:
+ xprt_clear_connecting(xprt);
+}
+
+/**
+ * xs_connect - connect a socket to a remote endpoint
+ * @task: address of RPC task that manages state of connect request
+ *
+ * TCP: If the remote end dropped the connection, delay reconnecting.
+ *
+ * UDP socket connects are synchronous, but we use a work queue anyway
+ * to guarantee that even unprivileged user processes can set up a
+ * socket on a privileged port.
+ *
+ * If a UDP socket connect fails, the delay behavior here prevents
+ * retry floods (hard mounts).
+ */
+static void xs_connect(struct rpc_task *task)
+{
+ struct rpc_xprt *xprt = task->tk_xprt;
+
+ if (xprt_test_and_set_connecting(xprt))
+ return;
+
+ if (xprt->sock != NULL) {
+ dprintk("RPC: xs_connect delayed xprt %p for %lu seconds\n",
+ xprt, xprt->reestablish_timeout / HZ);
+ schedule_delayed_work(&xprt->connect_worker,
+ xprt->reestablish_timeout);
+ xprt->reestablish_timeout <<= 1;
+ if (xprt->reestablish_timeout > XS_TCP_MAX_REEST_TO)
+ xprt->reestablish_timeout = XS_TCP_MAX_REEST_TO;
+ } else {
+ dprintk("RPC: xs_connect scheduled xprt %p\n", xprt);
+ schedule_work(&xprt->connect_worker);
+
+ /* flush_scheduled_work can sleep... */
+ if (!RPC_IS_ASYNC(task))
+ flush_scheduled_work();
+ }
+}
+
+static struct rpc_xprt_ops xs_udp_ops = {
+ .set_buffer_size = xs_udp_set_buffer_size,
+ .reserve_xprt = xprt_reserve_xprt_cong,
+ .release_xprt = xprt_release_xprt_cong,
+ .connect = xs_connect,
+ .send_request = xs_udp_send_request,
+ .set_retrans_timeout = xprt_set_retrans_timeout_rtt,
+ .timer = xs_udp_timer,
+ .release_request = xprt_release_rqst_cong,
+ .close = xs_close,
+ .destroy = xs_destroy,
+};
+
+static struct rpc_xprt_ops xs_tcp_ops = {
+ .reserve_xprt = xprt_reserve_xprt,
+ .release_xprt = xprt_release_xprt,
+ .connect = xs_connect,
+ .send_request = xs_tcp_send_request,
+ .set_retrans_timeout = xprt_set_retrans_timeout_def,
+ .close = xs_close,
+ .destroy = xs_destroy,
+};
+
+/**
+ * xs_setup_udp - Set up transport to use a UDP socket
+ * @xprt: transport to set up
+ * @to: timeout parameters
+ *
+ */
+int xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to)
+{
+ size_t slot_table_size;
+
+ dprintk("RPC: setting up udp-ipv4 transport...\n");
+
+ xprt->max_reqs = xprt_udp_slot_table_entries;
+ slot_table_size = xprt->max_reqs * sizeof(xprt->slot[0]);
+ xprt->slot = kmalloc(slot_table_size, GFP_KERNEL);
+ if (xprt->slot == NULL)
+ return -ENOMEM;
+ memset(xprt->slot, 0, slot_table_size);
+
+ xprt->prot = IPPROTO_UDP;
+ xprt->port = xprt_max_resvport;
+ xprt->tsh_size = 0;
+ xprt->resvport = capable(CAP_NET_BIND_SERVICE) ? 1 : 0;
+ /* XXX: header size can vary due to auth type, IPv6, etc. */
+ xprt->max_payload = (1U << 16) - (MAX_HEADER << 3);
+
+ INIT_WORK(&xprt->connect_worker, xs_udp_connect_worker, xprt);
+ xprt->bind_timeout = XS_BIND_TO;
+ xprt->connect_timeout = XS_UDP_CONN_TO;
+ xprt->reestablish_timeout = XS_UDP_REEST_TO;
+ xprt->idle_timeout = XS_IDLE_DISC_TO;
+
+ xprt->ops = &xs_udp_ops;
+
+ if (to)
+ xprt->timeout = *to;
+ else
+ xprt_set_timeout(&xprt->timeout, 5, 5 * HZ);
+
+ return 0;
+}
+
+/**
+ * xs_setup_tcp - Set up transport to use a TCP socket
+ * @xprt: transport to set up
+ * @to: timeout parameters
+ *
+ */
+int xs_setup_tcp(struct rpc_xprt *xprt, struct rpc_timeout *to)
+{
+ size_t slot_table_size;
+
+ dprintk("RPC: setting up tcp-ipv4 transport...\n");
+
+ xprt->max_reqs = xprt_tcp_slot_table_entries;
+ slot_table_size = xprt->max_reqs * sizeof(xprt->slot[0]);
+ xprt->slot = kmalloc(slot_table_size, GFP_KERNEL);
+ if (xprt->slot == NULL)
+ return -ENOMEM;
+ memset(xprt->slot, 0, slot_table_size);
+
+ xprt->prot = IPPROTO_TCP;
+ xprt->port = xprt_max_resvport;
+ xprt->tsh_size = sizeof(rpc_fraghdr) / sizeof(u32);
+ xprt->resvport = capable(CAP_NET_BIND_SERVICE) ? 1 : 0;
+ xprt->max_payload = RPC_MAX_FRAGMENT_SIZE;
+
+ INIT_WORK(&xprt->connect_worker, xs_tcp_connect_worker, xprt);
+ xprt->bind_timeout = XS_BIND_TO;
+ xprt->connect_timeout = XS_TCP_CONN_TO;
+ xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO;
+ xprt->idle_timeout = XS_IDLE_DISC_TO;
+
+ xprt->ops = &xs_tcp_ops;
+
+ if (to)
+ xprt->timeout = *to;
+ else
+ xprt_set_timeout(&xprt->timeout, 2, 60 * HZ);
+
+ return 0;
+}
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index cbb0ba34a60..0db9e57013f 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1192,46 +1192,6 @@ int xfrm_bundle_ok(struct xfrm_dst *first, struct flowi *fl, int family)
EXPORT_SYMBOL(xfrm_bundle_ok);
-/* Well... that's _TASK_. We need to scan through transformation
- * list and figure out what mss tcp should generate in order to
- * final datagram fit to mtu. Mama mia... :-)
- *
- * Apparently, some easy way exists, but we used to choose the most
- * bizarre ones. :-) So, raising Kalashnikov... tra-ta-ta.
- *
- * Consider this function as something like dark humour. :-)
- */
-static int xfrm_get_mss(struct dst_entry *dst, u32 mtu)
-{
- int res = mtu - dst->header_len;
-
- for (;;) {
- struct dst_entry *d = dst;
- int m = res;
-
- do {
- struct xfrm_state *x = d->xfrm;
- if (x) {
- spin_lock_bh(&x->lock);
- if (x->km.state == XFRM_STATE_VALID &&
- x->type && x->type->get_max_size)
- m = x->type->get_max_size(d->xfrm, m);
- else
- m += x->props.header_len;
- spin_unlock_bh(&x->lock);
- }
- } while ((d = d->child) != NULL);
-
- if (m <= mtu)
- break;
- res -= (m - mtu);
- if (res < 88)
- return mtu;
- }
-
- return res + dst->header_len;
-}
-
int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
{
int err = 0;
@@ -1252,8 +1212,6 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
dst_ops->negative_advice = xfrm_negative_advice;
if (likely(dst_ops->link_failure == NULL))
dst_ops->link_failure = xfrm_link_failure;
- if (likely(dst_ops->get_mss == NULL))
- dst_ops->get_mss = xfrm_get_mss;
if (likely(afinfo->garbage_collect == NULL))
afinfo->garbage_collect = __xfrm_garbage_collect;
xfrm_policy_afinfo[afinfo->family] = afinfo;
@@ -1281,7 +1239,6 @@ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo)
dst_ops->check = NULL;
dst_ops->negative_advice = NULL;
dst_ops->link_failure = NULL;
- dst_ops->get_mss = NULL;
afinfo->garbage_collect = NULL;
}
}
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 9d206c282cf..8b9a4747417 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1026,6 +1026,12 @@ void xfrm_state_delete_tunnel(struct xfrm_state *x)
}
EXPORT_SYMBOL(xfrm_state_delete_tunnel);
+/*
+ * This function is NOT optimal. For example, with ESP it will give an
+ * MTU that's usually two bytes short of being optimal. However, it will
+ * usually give an answer that's a multiple of 4 provided the input is
+ * also a multiple of 4.
+ */
int xfrm_state_mtu(struct xfrm_state *x, int mtu)
{
int res = mtu;