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-rw-r--r--net/ipv4/esp4.c185
-rw-r--r--net/ipv4/ip_output.c7
-rw-r--r--net/ipv4/netfilter/arp_tables.c2
-rw-r--r--net/ipv4/netfilter/ip_queue.c2
-rw-r--r--net/ipv4/netfilter/ipt_LOG.c7
-rw-r--r--net/ipv4/tcp_highspeed.c2
-rw-r--r--net/ipv4/tcp_output.c4
7 files changed, 83 insertions, 126 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 73bfcae8af9..09590f35608 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -12,13 +12,6 @@
#include <net/protocol.h>
#include <net/udp.h>
-/* decapsulation data for use when post-processing */
-struct esp_decap_data {
- xfrm_address_t saddr;
- __u16 sport;
- __u8 proto;
-};
-
static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
{
int err;
@@ -150,6 +143,10 @@ static int esp_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struc
int elen = skb->len - sizeof(struct ip_esp_hdr) - esp->conf.ivlen - alen;
int nfrags;
int encap_len = 0;
+ u8 nexthdr[2];
+ struct scatterlist *sg;
+ u8 workbuf[60];
+ int padlen;
if (!pskb_may_pull(skb, sizeof(struct ip_esp_hdr)))
goto out;
@@ -185,122 +182,82 @@ static int esp_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struc
if (esp->conf.ivlen)
crypto_cipher_set_iv(esp->conf.tfm, esph->enc_data, crypto_tfm_alg_ivsize(esp->conf.tfm));
- {
- u8 nexthdr[2];
- struct scatterlist *sg = &esp->sgbuf[0];
- u8 workbuf[60];
- int padlen;
-
- if (unlikely(nfrags > ESP_NUM_FAST_SG)) {
- sg = kmalloc(sizeof(struct scatterlist)*nfrags, GFP_ATOMIC);
- if (!sg)
- goto out;
- }
- skb_to_sgvec(skb, sg, sizeof(struct ip_esp_hdr) + esp->conf.ivlen, elen);
- crypto_cipher_decrypt(esp->conf.tfm, sg, sg, elen);
- if (unlikely(sg != &esp->sgbuf[0]))
- kfree(sg);
-
- if (skb_copy_bits(skb, skb->len-alen-2, nexthdr, 2))
- BUG();
+ sg = &esp->sgbuf[0];
- padlen = nexthdr[0];
- if (padlen+2 >= elen)
+ if (unlikely(nfrags > ESP_NUM_FAST_SG)) {
+ sg = kmalloc(sizeof(struct scatterlist)*nfrags, GFP_ATOMIC);
+ if (!sg)
goto out;
-
- /* ... check padding bits here. Silly. :-) */
-
- if (x->encap && decap && decap->decap_type) {
- struct esp_decap_data *encap_data;
- struct udphdr *uh = (struct udphdr *) (iph+1);
-
- encap_data = (struct esp_decap_data *) (decap->decap_data);
- encap_data->proto = 0;
-
- switch (decap->decap_type) {
- case UDP_ENCAP_ESPINUDP:
- case UDP_ENCAP_ESPINUDP_NON_IKE:
- encap_data->proto = AF_INET;
- encap_data->saddr.a4 = iph->saddr;
- encap_data->sport = uh->source;
- encap_len = (void*)esph - (void*)uh;
- break;
-
- default:
- goto out;
- }
- }
-
- iph->protocol = nexthdr[1];
- pskb_trim(skb, skb->len - alen - padlen - 2);
- memcpy(workbuf, skb->nh.raw, iph->ihl*4);
- skb->h.raw = skb_pull(skb, sizeof(struct ip_esp_hdr) + esp->conf.ivlen);
- skb->nh.raw += encap_len + sizeof(struct ip_esp_hdr) + esp->conf.ivlen;
- memcpy(skb->nh.raw, workbuf, iph->ihl*4);
- skb->nh.iph->tot_len = htons(skb->len);
}
+ skb_to_sgvec(skb, sg, sizeof(struct ip_esp_hdr) + esp->conf.ivlen, elen);
+ crypto_cipher_decrypt(esp->conf.tfm, sg, sg, elen);
+ if (unlikely(sg != &esp->sgbuf[0]))
+ kfree(sg);
- return 0;
+ if (skb_copy_bits(skb, skb->len-alen-2, nexthdr, 2))
+ BUG();
-out:
- return -EINVAL;
-}
+ padlen = nexthdr[0];
+ if (padlen+2 >= elen)
+ goto out;
-static int esp_post_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struct sk_buff *skb)
-{
-
- if (x->encap) {
- struct xfrm_encap_tmpl *encap;
- struct esp_decap_data *decap_data;
+ /* ... check padding bits here. Silly. :-) */
- encap = x->encap;
- decap_data = (struct esp_decap_data *)(decap->decap_data);
+ if (x->encap) {
+ struct xfrm_encap_tmpl *encap = x->encap;
+ struct udphdr *uh;
- /* first, make sure that the decap type == the encap type */
if (encap->encap_type != decap->decap_type)
- return -EINVAL;
+ goto out;
- switch (encap->encap_type) {
- default:
- case UDP_ENCAP_ESPINUDP:
- case UDP_ENCAP_ESPINUDP_NON_IKE:
- /*
- * 1) if the NAT-T peer's IP or port changed then
- * advertize the change to the keying daemon.
- * This is an inbound SA, so just compare
- * SRC ports.
- */
- if (decap_data->proto == AF_INET &&
- (decap_data->saddr.a4 != x->props.saddr.a4 ||
- decap_data->sport != encap->encap_sport)) {
- xfrm_address_t ipaddr;
-
- ipaddr.a4 = decap_data->saddr.a4;
- km_new_mapping(x, &ipaddr, decap_data->sport);
-
- /* XXX: perhaps add an extra
- * policy check here, to see
- * if we should allow or
- * reject a packet from a
- * different source
- * address/port.
- */
- }
-
- /*
- * 2) ignore UDP/TCP checksums in case
- * of NAT-T in Transport Mode, or
- * perform other post-processing fixes
- * as per * draft-ietf-ipsec-udp-encaps-06,
- * section 3.1.2
+ uh = (struct udphdr *)(iph + 1);
+ encap_len = (void*)esph - (void*)uh;
+
+ /*
+ * 1) if the NAT-T peer's IP or port changed then
+ * advertize the change to the keying daemon.
+ * This is an inbound SA, so just compare
+ * SRC ports.
+ */
+ if (iph->saddr != x->props.saddr.a4 ||
+ uh->source != encap->encap_sport) {
+ xfrm_address_t ipaddr;
+
+ ipaddr.a4 = iph->saddr;
+ km_new_mapping(x, &ipaddr, uh->source);
+
+ /* XXX: perhaps add an extra
+ * policy check here, to see
+ * if we should allow or
+ * reject a packet from a
+ * different source
+ * address/port.
*/
- if (!x->props.mode)
- skb->ip_summed = CHECKSUM_UNNECESSARY;
-
- break;
}
+
+ /*
+ * 2) ignore UDP/TCP checksums in case
+ * of NAT-T in Transport Mode, or
+ * perform other post-processing fixes
+ * as per draft-ietf-ipsec-udp-encaps-06,
+ * section 3.1.2
+ */
+ if (!x->props.mode)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
}
+
+ iph->protocol = nexthdr[1];
+ pskb_trim(skb, skb->len - alen - padlen - 2);
+ memcpy(workbuf, skb->nh.raw, iph->ihl*4);
+ skb->h.raw = skb_pull(skb, sizeof(struct ip_esp_hdr) + esp->conf.ivlen);
+ skb->nh.raw += encap_len + sizeof(struct ip_esp_hdr) + esp->conf.ivlen;
+ memcpy(skb->nh.raw, workbuf, iph->ihl*4);
+ skb->nh.iph->tot_len = htons(skb->len);
+
return 0;
+
+out:
+ return -EINVAL;
}
static u32 esp4_get_max_size(struct xfrm_state *x, int mtu)
@@ -458,7 +415,6 @@ static struct xfrm_type esp_type =
.destructor = esp_destroy,
.get_max_size = esp4_get_max_size,
.input = esp_input,
- .post_input = esp_post_input,
.output = esp_output
};
@@ -470,15 +426,6 @@ static struct net_protocol esp4_protocol = {
static int __init esp4_init(void)
{
- struct xfrm_decap_state decap;
-
- if (sizeof(struct esp_decap_data) >
- sizeof(decap.decap_data)) {
- extern void decap_data_too_small(void);
-
- decap_data_too_small();
- }
-
if (xfrm_register_type(&esp_type, AF_INET) < 0) {
printk(KERN_INFO "ip esp init: can't add xfrm type\n");
return -EAGAIN;
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 57d290d89ec..8ee4d016740 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -847,10 +847,11 @@ int ip_append_data(struct sock *sk,
if (((length > mtu) && (sk->sk_protocol == IPPROTO_UDP)) &&
(rt->u.dst.dev->features & NETIF_F_UFO)) {
- if(ip_ufo_append_data(sk, getfrag, from, length, hh_len,
- fragheaderlen, transhdrlen, mtu, flags))
+ err = ip_ufo_append_data(sk, getfrag, from, length, hh_len,
+ fragheaderlen, transhdrlen, mtu,
+ flags);
+ if (err)
goto error;
-
return 0;
}
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index dd1048be8a0..7d7ab94a7a2 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -771,7 +771,7 @@ static int get_entries(const struct arpt_get_entries *entries,
struct arpt_table *t;
t = xt_find_table_lock(NF_ARP, entries->name);
- if (t || !IS_ERR(t)) {
+ if (t && !IS_ERR(t)) {
struct xt_table_info *private = t->private;
duprintf("t->private->number = %u\n",
private->number);
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 36339eb39e1..08f80e2ea2a 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -524,7 +524,7 @@ ipq_rcv_skb(struct sk_buff *skb)
write_unlock_bh(&queue_lock);
status = ipq_receive_peer(NLMSG_DATA(nlh), type,
- skblen - NLMSG_LENGTH(0));
+ nlmsglen - NLMSG_LENGTH(0));
if (status < 0)
RCV_SKB_FAIL(status);
diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c
index 6606ddb66a2..cc27545ff97 100644
--- a/net/ipv4/netfilter/ipt_LOG.c
+++ b/net/ipv4/netfilter/ipt_LOG.c
@@ -425,7 +425,12 @@ ipt_log_target(struct sk_buff **pskb,
li.u.log.level = loginfo->level;
li.u.log.logflags = loginfo->logflags;
- nf_log_packet(PF_INET, hooknum, *pskb, in, out, &li, loginfo->prefix);
+ if (loginfo->logflags & IPT_LOG_NFLOG)
+ nf_log_packet(PF_INET, hooknum, *pskb, in, out, &li,
+ loginfo->prefix);
+ else
+ ipt_log_packet(PF_INET, hooknum, *pskb, in, out, &li,
+ loginfo->prefix);
return IPT_CONTINUE;
}
diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c
index 63cf7e54084..e0e9d1383c7 100644
--- a/net/ipv4/tcp_highspeed.c
+++ b/net/ipv4/tcp_highspeed.c
@@ -125,7 +125,7 @@ static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 rtt,
/* Update AIMD parameters */
if (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd) {
while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
- ca->ai < HSTCP_AIMD_MAX)
+ ca->ai < HSTCP_AIMD_MAX - 1)
ca->ai++;
} else if (tp->snd_cwnd < hstcp_aimd_vals[ca->ai].cwnd) {
while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index a7623ead39a..9f498a6c889 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1036,6 +1036,10 @@ static int tcp_tso_should_defer(struct sock *sk, struct tcp_sock *tp, struct sk_
limit = min(send_win, cong_win);
+ /* If a full-sized TSO skb can be sent, do it. */
+ if (limit >= 65536)
+ return 0;
+
if (sysctl_tcp_tso_win_divisor) {
u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 13:21:01 +0000