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-rw-r--r--include/net/ax25.h4
-rw-r--r--include/net/cfg80211.h40
-rw-r--r--include/net/ieee80211_radiotap.h11
-rw-r--r--include/net/ipv6.h5
-rw-r--r--include/net/mac80211.h87
-rw-r--r--include/net/netfilter/nf_conntrack_ecache.h1
-rw-r--r--include/net/netns/ipv4.h3
-rw-r--r--include/net/netns/packet.h2
-rw-r--r--include/net/request_sock.h49
-rw-r--r--include/net/sch_generic.h3
-rw-r--r--include/net/sock.h11
-rw-r--r--include/net/tcp.h73
12 files changed, 234 insertions, 55 deletions
diff --git a/include/net/ax25.h b/include/net/ax25.h
index 5d2352154cf..53539acbd81 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -157,7 +157,7 @@ enum {
typedef struct ax25_uid_assoc {
struct hlist_node uid_node;
atomic_t refcount;
- uid_t uid;
+ kuid_t uid;
ax25_address call;
} ax25_uid_assoc;
@@ -434,7 +434,7 @@ extern unsigned long ax25_display_timer(struct timer_list *);
/* ax25_uid.c */
extern int ax25_uid_policy;
-extern ax25_uid_assoc *ax25_findbyuid(uid_t);
+extern ax25_uid_assoc *ax25_findbyuid(kuid_t);
extern int __must_check ax25_uid_ioctl(int, struct sockaddr_ax25 *);
extern const struct file_operations ax25_uid_fops;
extern void ax25_uid_free(void);
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 3d254e10ff3..ba2e6160fad 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1439,7 +1439,8 @@ struct cfg80211_gtk_rekey_data {
* @add_virtual_intf: create a new virtual interface with the given name,
* must set the struct wireless_dev's iftype. Beware: You must create
* the new netdev in the wiphy's network namespace! Returns the struct
- * wireless_dev, or an ERR_PTR.
+ * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must
+ * also set the address member in the wdev.
*
* @del_virtual_intf: remove the virtual interface
*
@@ -1618,6 +1619,9 @@ struct cfg80211_gtk_rekey_data {
* @get_channel: Get the current operating channel for the virtual interface.
* For monitor interfaces, it should return %NULL unless there's a single
* current monitoring channel.
+ *
+ * @start_p2p_device: Start the given P2P device.
+ * @stop_p2p_device: Stop the given P2P device.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -1834,6 +1838,11 @@ struct cfg80211_ops {
(*get_channel)(struct wiphy *wiphy,
struct wireless_dev *wdev,
enum nl80211_channel_type *type);
+
+ int (*start_p2p_device)(struct wiphy *wiphy,
+ struct wireless_dev *wdev);
+ void (*stop_p2p_device)(struct wiphy *wiphy,
+ struct wireless_dev *wdev);
};
/*
@@ -2397,6 +2406,8 @@ struct cfg80211_cached_keys;
* @cleanup_work: work struct used for cleanup that can't be done directly
* @beacon_interval: beacon interval used on this device for transmitting
* beacons, 0 when not valid
+ * @address: The address for this device, valid only if @netdev is %NULL
+ * @p2p_started: true if this is a P2P Device that has been started
*/
struct wireless_dev {
struct wiphy *wiphy;
@@ -2415,7 +2426,9 @@ struct wireless_dev {
struct work_struct cleanup_work;
- bool use_4addr;
+ bool use_4addr, p2p_started;
+
+ u8 address[ETH_ALEN] __aligned(sizeof(u16));
/* currently used for IBSS and SME - might be rearranged later */
u8 ssid[IEEE80211_MAX_SSID_LEN];
@@ -2463,6 +2476,13 @@ struct wireless_dev {
#endif
};
+static inline u8 *wdev_address(struct wireless_dev *wdev)
+{
+ if (wdev->netdev)
+ return wdev->netdev->dev_addr;
+ return wdev->address;
+}
+
/**
* wdev_priv - return wiphy priv from wireless_dev
*
@@ -3530,6 +3550,22 @@ void cfg80211_ch_switch_notify(struct net_device *dev, int freq,
*/
u32 cfg80211_calculate_bitrate(struct rate_info *rate);
+/**
+ * cfg80211_unregister_wdev - remove the given wdev
+ * @wdev: struct wireless_dev to remove
+ *
+ * Call this function only for wdevs that have no netdev assigned,
+ * e.g. P2P Devices. It removes the device from the list so that
+ * it can no longer be used. It is necessary to call this function
+ * even when cfg80211 requests the removal of the interface by
+ * calling the del_virtual_intf() callback. The function must also
+ * be called when the driver wishes to unregister the wdev, e.g.
+ * when the device is unbound from the driver.
+ *
+ * Requires the RTNL to be held.
+ */
+void cfg80211_unregister_wdev(struct wireless_dev *wdev);
+
/* Logging, debugging and troubleshooting/diagnostic helpers. */
/* wiphy_printk helpers, similar to dev_printk */
diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h
index 71392545d0a..7f0df133d11 100644
--- a/include/net/ieee80211_radiotap.h
+++ b/include/net/ieee80211_radiotap.h
@@ -183,6 +183,9 @@ struct ieee80211_radiotap_header {
* Contains a bitmap of known fields/flags, the flags, and
* the MCS index.
*
+ * IEEE80211_RADIOTAP_AMPDU_STATUS u32, u16, u8, u8 unitless
+ *
+ * Contains the AMPDU information for the subframe.
*/
enum ieee80211_radiotap_type {
IEEE80211_RADIOTAP_TSFT = 0,
@@ -205,6 +208,7 @@ enum ieee80211_radiotap_type {
IEEE80211_RADIOTAP_DATA_RETRIES = 17,
IEEE80211_RADIOTAP_MCS = 19,
+ IEEE80211_RADIOTAP_AMPDU_STATUS = 20,
/* valid in every it_present bitmap, even vendor namespaces */
IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE = 29,
@@ -270,6 +274,13 @@ enum ieee80211_radiotap_type {
#define IEEE80211_RADIOTAP_MCS_FMT_GF 0x08
#define IEEE80211_RADIOTAP_MCS_FEC_LDPC 0x10
+/* For IEEE80211_RADIOTAP_AMPDU_STATUS */
+#define IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN 0x0001
+#define IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN 0x0002
+#define IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN 0x0004
+#define IEEE80211_RADIOTAP_AMPDU_IS_LAST 0x0008
+#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR 0x0010
+#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN 0x0020
/* helpers */
static inline int ieee80211_get_radiotap_len(unsigned char *data)
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 6d01fb00ff2..9bed5d48340 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -223,7 +223,10 @@ struct ip6_flowlabel {
struct ipv6_txoptions *opt;
unsigned long linger;
u8 share;
- u32 owner;
+ union {
+ struct pid *pid;
+ kuid_t uid;
+ } owner;
unsigned long lastuse;
unsigned long expires;
struct net *fl_net;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index bb86aa6f98d..71f8262fc1d 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -171,6 +171,7 @@ struct ieee80211_low_level_stats {
* @BSS_CHANGED_IDLE: Idle changed for this BSS/interface.
* @BSS_CHANGED_SSID: SSID changed for this BSS (AP mode)
* @BSS_CHANGED_AP_PROBE_RESP: Probe Response changed for this BSS (AP mode)
+ * @BSS_CHANGED_PS: PS changed for this BSS (STA mode)
*/
enum ieee80211_bss_change {
BSS_CHANGED_ASSOC = 1<<0,
@@ -190,6 +191,7 @@ enum ieee80211_bss_change {
BSS_CHANGED_IDLE = 1<<14,
BSS_CHANGED_SSID = 1<<15,
BSS_CHANGED_AP_PROBE_RESP = 1<<16,
+ BSS_CHANGED_PS = 1<<17,
/* when adding here, make sure to change ieee80211_reconfig */
};
@@ -266,6 +268,8 @@ enum ieee80211_rssi_event {
* @idle: This interface is idle. There's also a global idle flag in the
* hardware config which may be more appropriate depending on what
* your driver/device needs to do.
+ * @ps: power-save mode (STA only). This flag is NOT affected by
+ * offchannel/dynamic_ps operations.
* @ssid: The SSID of the current vif. Only valid in AP-mode.
* @ssid_len: Length of SSID given in @ssid.
* @hidden_ssid: The SSID of the current vif is hidden. Only valid in AP-mode.
@@ -296,6 +300,7 @@ struct ieee80211_bss_conf {
bool arp_filter_enabled;
bool qos;
bool idle;
+ bool ps;
u8 ssid[IEEE80211_MAX_SSID_LEN];
size_t ssid_len;
bool hidden_ssid;
@@ -522,9 +527,6 @@ struct ieee80211_tx_rate {
* (2) driver internal use (if applicable)
* (3) TX status information - driver tells mac80211 what happened
*
- * The TX control's sta pointer is only valid during the ->tx call,
- * it may be NULL.
- *
* @flags: transmit info flags, defined above
* @band: the band to transmit on (use for checking for races)
* @hw_queue: HW queue to put the frame on, skb_get_queue_mapping() gives the AC
@@ -555,6 +557,7 @@ struct ieee80211_tx_info {
struct ieee80211_tx_rate rates[
IEEE80211_TX_MAX_RATES];
s8 rts_cts_rate_idx;
+ /* 3 bytes free */
};
/* only needed before rate control */
unsigned long jiffies;
@@ -562,7 +565,7 @@ struct ieee80211_tx_info {
/* NB: vif can be NULL for injected frames */
struct ieee80211_vif *vif;
struct ieee80211_key_conf *hw_key;
- struct ieee80211_sta *sta;
+ /* 8 bytes free */
} control;
struct {
struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES];
@@ -673,21 +676,41 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
* @RX_FLAG_HT_GF: This frame was received in a HT-greenfield transmission, if
* the driver fills this value it should add %IEEE80211_RADIOTAP_MCS_HAVE_FMT
* to hw.radiotap_mcs_details to advertise that fact
+ * @RX_FLAG_AMPDU_DETAILS: A-MPDU details are known, in particular the reference
+ * number (@ampdu_reference) must be populated and be a distinct number for
+ * each A-MPDU
+ * @RX_FLAG_AMPDU_REPORT_ZEROLEN: driver reports 0-length subframes
+ * @RX_FLAG_AMPDU_IS_ZEROLEN: This is a zero-length subframe, for
+ * monitoring purposes only
+ * @RX_FLAG_AMPDU_LAST_KNOWN: last subframe is known, should be set on all
+ * subframes of a single A-MPDU
+ * @RX_FLAG_AMPDU_IS_LAST: this subframe is the last subframe of the A-MPDU
+ * @RX_FLAG_AMPDU_DELIM_CRC_ERROR: A delimiter CRC error has been detected
+ * on this subframe
+ * @RX_FLAG_AMPDU_DELIM_CRC_KNOWN: The delimiter CRC field is known (the CRC
+ * is stored in the @ampdu_delimiter_crc field)
*/
enum mac80211_rx_flags {
- RX_FLAG_MMIC_ERROR = 1<<0,
- RX_FLAG_DECRYPTED = 1<<1,
- RX_FLAG_MMIC_STRIPPED = 1<<3,
- RX_FLAG_IV_STRIPPED = 1<<4,
- RX_FLAG_FAILED_FCS_CRC = 1<<5,
- RX_FLAG_FAILED_PLCP_CRC = 1<<6,
- RX_FLAG_MACTIME_MPDU = 1<<7,
- RX_FLAG_SHORTPRE = 1<<8,
- RX_FLAG_HT = 1<<9,
- RX_FLAG_40MHZ = 1<<10,
- RX_FLAG_SHORT_GI = 1<<11,
- RX_FLAG_NO_SIGNAL_VAL = 1<<12,
- RX_FLAG_HT_GF = 1<<13,
+ RX_FLAG_MMIC_ERROR = BIT(0),
+ RX_FLAG_DECRYPTED = BIT(1),
+ RX_FLAG_MMIC_STRIPPED = BIT(3),
+ RX_FLAG_IV_STRIPPED = BIT(4),
+ RX_FLAG_FAILED_FCS_CRC = BIT(5),
+ RX_FLAG_FAILED_PLCP_CRC = BIT(6),
+ RX_FLAG_MACTIME_MPDU = BIT(7),
+ RX_FLAG_SHORTPRE = BIT(8),
+ RX_FLAG_HT = BIT(9),
+ RX_FLAG_40MHZ = BIT(10),
+ RX_FLAG_SHORT_GI = BIT(11),
+ RX_FLAG_NO_SIGNAL_VAL = BIT(12),
+ RX_FLAG_HT_GF = BIT(13),
+ RX_FLAG_AMPDU_DETAILS = BIT(14),
+ RX_FLAG_AMPDU_REPORT_ZEROLEN = BIT(15),
+ RX_FLAG_AMPDU_IS_ZEROLEN = BIT(16),
+ RX_FLAG_AMPDU_LAST_KNOWN = BIT(17),
+ RX_FLAG_AMPDU_IS_LAST = BIT(18),
+ RX_FLAG_AMPDU_DELIM_CRC_ERROR = BIT(19),
+ RX_FLAG_AMPDU_DELIM_CRC_KNOWN = BIT(20),
};
/**
@@ -711,17 +734,22 @@ enum mac80211_rx_flags {
* HT rates are use (RX_FLAG_HT)
* @flag: %RX_FLAG_*
* @rx_flags: internal RX flags for mac80211
+ * @ampdu_reference: A-MPDU reference number, must be a different value for
+ * each A-MPDU but the same for each subframe within one A-MPDU
+ * @ampdu_delimiter_crc: A-MPDU delimiter CRC
*/
struct ieee80211_rx_status {
u64 mactime;
u32 device_timestamp;
- u16 flag;
+ u32 ampdu_reference;
+ u32 flag;
u16 freq;
u8 rate_idx;
u8 rx_flags;
u8 band;
u8 antenna;
s8 signal;
+ u8 ampdu_delimiter_crc;
};
/**
@@ -1074,6 +1102,16 @@ enum sta_notify_cmd {
};
/**
+ * struct ieee80211_tx_control - TX control data
+ *
+ * @sta: station table entry, this sta pointer may be NULL and
+ * it is not allowed to copy the pointer, due to RCU.
+ */
+struct ieee80211_tx_control {
+ struct ieee80211_sta *sta;
+};
+
+/**
* enum ieee80211_hw_flags - hardware flags
*
* These flags are used to indicate hardware capabilities to
@@ -1203,6 +1241,10 @@ enum sta_notify_cmd {
* queue mapping in order to use different queues (not just one per AC)
* for different virtual interfaces. See the doc section on HW queue
* control for more details.
+ *
+ * @IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF: Use the P2P Device address for any
+ * P2P Interface. This will be honoured even if more than one interface
+ * is supported.
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HAS_RATE_CONTROL = 1<<0,
@@ -1230,6 +1272,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_AP_LINK_PS = 1<<22,
IEEE80211_HW_TX_AMPDU_SETUP_IN_HW = 1<<23,
IEEE80211_HW_SCAN_WHILE_IDLE = 1<<24,
+ IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF = 1<<25,
};
/**
@@ -1884,10 +1927,14 @@ enum ieee80211_frame_release_type {
* @IEEE80211_RC_BW_CHANGED: The bandwidth that can be used to transmit
* to this station changed.
* @IEEE80211_RC_SMPS_CHANGED: The SMPS state of the station changed.
+ * @IEEE80211_RC_SUPP_RATES_CHANGED: The supported rate set of this peer
+ * changed (in IBSS mode) due to discovering more information about
+ * the peer.
*/
enum ieee80211_rate_control_changed {
IEEE80211_RC_BW_CHANGED = BIT(0),
IEEE80211_RC_SMPS_CHANGED = BIT(1),
+ IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2),
};
/**
@@ -2264,7 +2311,9 @@ enum ieee80211_rate_control_changed {
* The callback is optional and can (should!) sleep.
*/
struct ieee80211_ops {
- void (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb);
+ void (*tx)(struct ieee80211_hw *hw,
+ struct ieee80211_tx_control *control,
+ struct sk_buff *skb);
int (*start)(struct ieee80211_hw *hw);
void (*stop)(struct ieee80211_hw *hw);
#ifdef CONFIG_PM
diff --git a/include/net/netfilter/nf_conntrack_ecache.h b/include/net/netfilter/nf_conntrack_ecache.h
index e1ce1048fe5..4a045cda9c6 100644
--- a/include/net/netfilter/nf_conntrack_ecache.h
+++ b/include/net/netfilter/nf_conntrack_ecache.h
@@ -18,6 +18,7 @@ struct nf_conntrack_ecache {
u16 ctmask; /* bitmask of ct events to be delivered */
u16 expmask; /* bitmask of expect events to be delivered */
u32 pid; /* netlink pid of destroyer */
+ struct timer_list timeout;
};
static inline struct nf_conntrack_ecache *
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index ace280d19a2..7d00583d53d 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -5,6 +5,7 @@
#ifndef __NETNS_IPV4_H__
#define __NETNS_IPV4_H__
+#include <linux/uidgid.h>
#include <net/inet_frag.h>
struct tcpm_hash_bucket;
@@ -60,7 +61,7 @@ struct netns_ipv4 {
int sysctl_icmp_ratemask;
int sysctl_icmp_errors_use_inbound_ifaddr;
- unsigned int sysctl_ping_group_range[2];
+ kgid_t sysctl_ping_group_range[2];
long sysctl_tcp_mem[3];
atomic_t rt_genid;
diff --git a/include/net/netns/packet.h b/include/net/netns/packet.h
index 4780b080a43..17ec2b95c06 100644
--- a/include/net/netns/packet.h
+++ b/include/net/netns/packet.h
@@ -5,7 +5,7 @@
#define __NETNS_PACKET_H__
#include <linux/rculist.h>
-#include <linux/spinlock.h>
+#include <linux/mutex.h>
struct netns_packet {
struct mutex sklist_lock;
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 4c0766e201e..b01d8dd9ee7 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -106,6 +106,34 @@ struct listen_sock {
struct request_sock *syn_table[0];
};
+/*
+ * For a TCP Fast Open listener -
+ * lock - protects the access to all the reqsk, which is co-owned by
+ * the listener and the child socket.
+ * qlen - pending TFO requests (still in TCP_SYN_RECV).
+ * max_qlen - max TFO reqs allowed before TFO is disabled.
+ *
+ * XXX (TFO) - ideally these fields can be made as part of "listen_sock"
+ * structure above. But there is some implementation difficulty due to
+ * listen_sock being part of request_sock_queue hence will be freed when
+ * a listener is stopped. But TFO related fields may continue to be
+ * accessed even after a listener is closed, until its sk_refcnt drops
+ * to 0 implying no more outstanding TFO reqs. One solution is to keep
+ * listen_opt around until sk_refcnt drops to 0. But there is some other
+ * complexity that needs to be resolved. E.g., a listener can be disabled
+ * temporarily through shutdown()->tcp_disconnect(), and re-enabled later.
+ */
+struct fastopen_queue {
+ struct request_sock *rskq_rst_head; /* Keep track of past TFO */
+ struct request_sock *rskq_rst_tail; /* requests that caused RST.
+ * This is part of the defense
+ * against spoofing attack.
+ */
+ spinlock_t lock;
+ int qlen; /* # of pending (TCP_SYN_RECV) reqs */
+ int max_qlen; /* != 0 iff TFO is currently enabled */
+};
+
/** struct request_sock_queue - queue of request_socks
*
* @rskq_accept_head - FIFO head of established children
@@ -129,6 +157,12 @@ struct request_sock_queue {
u8 rskq_defer_accept;
/* 3 bytes hole, try to pack */
struct listen_sock *listen_opt;
+ struct fastopen_queue *fastopenq; /* This is non-NULL iff TFO has been
+ * enabled on this listener. Check
+ * max_qlen != 0 in fastopen_queue
+ * to determine if TFO is enabled
+ * right at this moment.
+ */
};
extern int reqsk_queue_alloc(struct request_sock_queue *queue,
@@ -136,6 +170,8 @@ extern int reqsk_queue_alloc(struct request_sock_queue *queue,
extern void __reqsk_queue_destroy(struct request_sock_queue *queue);
extern void reqsk_queue_destroy(struct request_sock_queue *queue);
+extern void reqsk_fastopen_remove(struct sock *sk,
+ struct request_sock *req, bool reset);
static inline struct request_sock *
reqsk_queue_yank_acceptq(struct request_sock_queue *queue)
@@ -190,19 +226,6 @@ static inline struct request_sock *reqsk_queue_remove(struct request_sock_queue
return req;
}
-static inline struct sock *reqsk_queue_get_child(struct request_sock_queue *queue,
- struct sock *parent)
-{
- struct request_sock *req = reqsk_queue_remove(queue);
- struct sock *child = req->sk;
-
- WARN_ON(child == NULL);
-
- sk_acceptq_removed(parent);
- __reqsk_free(req);
- return child;
-}
-
static inline int reqsk_queue_removed(struct request_sock_queue *queue,
struct request_sock *req)
{
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index d9611e03241..4616f468d59 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -188,7 +188,8 @@ struct tcf_proto_ops {
unsigned long (*get)(struct tcf_proto*, u32 handle);
void (*put)(struct tcf_proto*, unsigned long);
- int (*change)(struct tcf_proto*, unsigned long,
+ int (*change)(struct sk_buff *,
+ struct tcf_proto*, unsigned long,
u32 handle, struct nlattr **,
unsigned long *);
int (*delete)(struct tcf_proto*, unsigned long);
diff --git a/include/net/sock.h b/include/net/sock.h
index 72132aef53f..84bdaeca131 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -606,6 +606,15 @@ static inline void sk_add_bind_node(struct sock *sk,
#define sk_for_each_bound(__sk, node, list) \
hlist_for_each_entry(__sk, node, list, sk_bind_node)
+static inline struct user_namespace *sk_user_ns(struct sock *sk)
+{
+ /* Careful only use this in a context where these parameters
+ * can not change and must all be valid, such as recvmsg from
+ * userspace.
+ */
+ return sk->sk_socket->file->f_cred->user_ns;
+}
+
/* Sock flags */
enum sock_flags {
SOCK_DEAD,
@@ -1670,7 +1679,7 @@ static inline void sock_graft(struct sock *sk, struct socket *parent)
write_unlock_bh(&sk->sk_callback_lock);
}
-extern int sock_i_uid(struct sock *sk);
+extern kuid_t sock_i_uid(struct sock *sk);
extern unsigned long sock_i_ino(struct sock *sk);
static inline struct dst_entry *
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 1f000ffe707..1421b02a790 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -98,11 +98,21 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo);
* 15 is ~13-30min depending on RTO.
*/
-#define TCP_SYN_RETRIES 5 /* number of times to retry active opening a
- * connection: ~180sec is RFC minimum */
+#define TCP_SYN_RETRIES 6 /* This is how many retries are done
+ * when active opening a connection.
+ * RFC1122 says the minimum retry MUST
+ * be at least 180secs. Nevertheless
+ * this value is corresponding to
+ * 63secs of retransmission with the
+ * current initial RTO.
+ */
-#define TCP_SYNACK_RETRIES 5 /* number of times to retry passive opening a
- * connection: ~180sec is RFC minimum */
+#define TCP_SYNACK_RETRIES 5 /* This is how may retries are done
+ * when passive opening a connection.
+ * This is corresponding to 31secs of
+ * retransmission with the current
+ * initial RTO.
+ */
#define TCP_TIMEWAIT_LEN (60*HZ) /* how long to wait to destroy TIME-WAIT
* state, about 60 seconds */
@@ -214,8 +224,24 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo);
/* Bit Flags for sysctl_tcp_fastopen */
#define TFO_CLIENT_ENABLE 1
+#define TFO_SERVER_ENABLE 2
#define TFO_CLIENT_NO_COOKIE 4 /* Data in SYN w/o cookie option */
+/* Process SYN data but skip cookie validation */
+#define TFO_SERVER_COOKIE_NOT_CHKED 0x100
+/* Accept SYN data w/o any cookie option */
+#define TFO_SERVER_COOKIE_NOT_REQD 0x200
+
+/* Force enable TFO on all listeners, i.e., not requiring the
+ * TCP_FASTOPEN socket option. SOCKOPT1/2 determine how to set max_qlen.
+ */
+#define TFO_SERVER_WO_SOCKOPT1 0x400
+#define TFO_SERVER_WO_SOCKOPT2 0x800
+/* Always create TFO child sockets on a TFO listener even when
+ * cookie/data not present. (For testing purpose!)
+ */
+#define TFO_SERVER_ALWAYS 0x1000
+
extern struct inet_timewait_death_row tcp_death_row;
/* sysctl variables for tcp */
@@ -398,7 +424,8 @@ extern enum tcp_tw_status tcp_timewait_state_process(struct inet_timewait_sock *
const struct tcphdr *th);
extern struct sock * tcp_check_req(struct sock *sk,struct sk_buff *skb,
struct request_sock *req,
- struct request_sock **prev);
+ struct request_sock **prev,
+ bool fastopen);
extern int tcp_child_process(struct sock *parent, struct sock *child,
struct sk_buff *skb);
extern bool tcp_use_frto(struct sock *sk);
@@ -411,12 +438,6 @@ extern void tcp_metrics_init(void);
extern bool tcp_peer_is_proven(struct request_sock *req, struct dst_entry *dst, bool paws_check);
extern bool tcp_remember_stamp(struct sock *sk);
extern bool tcp_tw_remember_stamp(struct inet_timewait_sock *tw);
-extern void tcp_fastopen_cache_get(struct sock *sk, u16 *mss,
- struct tcp_fastopen_cookie *cookie,
- int *syn_loss, unsigned long *last_syn_loss);
-extern void tcp_fastopen_cache_set(struct sock *sk, u16 mss,
- struct tcp_fastopen_cookie *cookie,
- bool syn_lost);
extern void tcp_fetch_timewait_stamp(struct sock *sk, struct dst_entry *dst);
extern void tcp_disable_fack(struct tcp_sock *tp);
extern void tcp_close(struct sock *sk, long timeout);
@@ -458,7 +479,8 @@ extern int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
extern int tcp_connect(struct sock *sk);
extern struct sk_buff * tcp_make_synack(struct sock *sk, struct dst_entry *dst,
struct request_sock *req,
- struct request_values *rvp);
+ struct request_values *rvp,
+ struct tcp_fastopen_cookie *foc);
extern int tcp_disconnect(struct sock *sk, int flags);
void tcp_connect_init(struct sock *sk);
@@ -527,6 +549,7 @@ extern void tcp_send_delayed_ack(struct sock *sk);
extern void tcp_cwnd_application_limited(struct sock *sk);
extern void tcp_resume_early_retransmit(struct sock *sk);
extern void tcp_rearm_rto(struct sock *sk);
+extern void tcp_reset(struct sock *sk);
/* tcp_timer.c */
extern void tcp_init_xmit_timers(struct sock *);
@@ -576,6 +599,7 @@ extern int tcp_mtu_to_mss(struct sock *sk, int pmtu);
extern int tcp_mss_to_mtu(struct sock *sk, int mss);
extern void tcp_mtup_init(struct sock *sk);
extern void tcp_valid_rtt_meas(struct sock *sk, u32 seq_rtt);
+extern void tcp_init_buffer_space(struct sock *sk);
static inline void tcp_bound_rto(const struct sock *sk)
{
@@ -1094,6 +1118,7 @@ static inline void tcp_openreq_init(struct request_sock *req,
req->rcv_wnd = 0; /* So that tcp_send_synack() knows! */
req->cookie_ts = 0;
tcp_rsk(req)->rcv_isn = TCP_SKB_CB(skb)->seq;
+ tcp_rsk(req)->rcv_nxt = TCP_SKB_CB(skb)->seq + 1;
req->mss = rx_opt->mss_clamp;
req->ts_recent = rx_opt->saw_tstamp ? rx_opt->rcv_tsval : 0;
ireq->tstamp_ok = rx_opt->tstamp_ok;
@@ -1298,15 +1323,34 @@ extern int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *, const struct sk_buff
extern int tcp_md5_hash_key(struct tcp_md5sig_pool *hp,
const struct tcp_md5sig_key *key);
+/* From tcp_fastopen.c */
+extern void tcp_fastopen_cache_get(struct sock *sk, u16 *mss,
+ struct tcp_fastopen_cookie *cookie,
+ int *syn_loss, unsigned long *last_syn_loss);
+extern void tcp_fastopen_cache_set(struct sock *sk, u16 mss,
+ struct tcp_fastopen_cookie *cookie,
+ bool syn_lost);
struct tcp_fastopen_request {
/* Fast Open cookie. Size 0 means a cookie request */
struct tcp_fastopen_cookie cookie;
struct msghdr *data; /* data in MSG_FASTOPEN */
u16 copied; /* queued in tcp_connect() */
};
-
void tcp_free_fastopen_req(struct tcp_sock *tp);
+extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
+int tcp_fastopen_reset_cipher(void *key, unsigned int len);
+void tcp_fastopen_cookie_gen(__be32 addr, struct tcp_fastopen_cookie *foc);
+
+#define TCP_FASTOPEN_KEY_LENGTH 16
+
+/* Fastopen key context */
+struct tcp_fastopen_context {
+ struct crypto_cipher __rcu *tfm;
+ __u8 key[TCP_FASTOPEN_KEY_LENGTH];
+ struct rcu_head rcu;
+};
+
/* write queue abstraction */
static inline void tcp_write_queue_purge(struct sock *sk)
{
@@ -1510,7 +1554,8 @@ struct tcp_iter_state {
sa_family_t family;
enum tcp_seq_states state;
struct sock *syn_wait_sk;
- int bucket, offset, sbucket, num, uid;
+ int bucket, offset, sbucket, num;
+ kuid_t uid;
loff_t last_pos;
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 03:16:43 +0000