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-rw-r--r--net/ipv4/syncookies.c4
-rw-r--r--net/ipv4/tcp.c8
-rw-r--r--net/ipv4/tcp_input.c11
-rw-r--r--net/ipv4/tcp_ipv4.c11
-rw-r--r--net/ipv4/tcp_minisocks.c8
-rw-r--r--net/ipv4/tcp_output.c17
6 files changed, 29 insertions, 30 deletions
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index a34e60e..e20be33 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -173,10 +173,10 @@ static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
struct request_sock *req,
struct dst_entry *dst)
{
- struct tcp_sock *tp = tcp_sk(sk);
+ struct inet_connection_sock *icsk = inet_csk(sk);
struct sock *child;
- child = tp->af_specific->syn_recv_sock(sk, skb, req, dst);
+ child = icsk->icsk_af_ops->syn_recv_sock(sk, skb, req, dst);
if (child)
inet_csk_reqsk_queue_add(sk, req, child);
else
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ef98b14..eacfe6a 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1696,8 +1696,8 @@ int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
int err = 0;
if (level != SOL_TCP)
- return tp->af_specific->setsockopt(sk, level, optname,
- optval, optlen);
+ return icsk->icsk_af_ops->setsockopt(sk, level, optname,
+ optval, optlen);
/* This is a string value all the others are int's */
if (optname == TCP_CONGESTION) {
@@ -1939,8 +1939,8 @@ int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
int val, len;
if (level != SOL_TCP)
- return tp->af_specific->getsockopt(sk, level, optname,
- optval, optlen);
+ return icsk->icsk_af_ops->getsockopt(sk, level, optname,
+ optval, optlen);
if (get_user(len, optlen))
return -EFAULT;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index bf2e230..7de6184 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4071,8 +4071,10 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
mb();
tcp_set_state(sk, TCP_ESTABLISHED);
+ icsk = inet_csk(sk);
+
/* Make sure socket is routed, for correct metrics. */
- tp->af_specific->rebuild_header(sk);
+ icsk->icsk_af_ops->rebuild_header(sk);
tcp_init_metrics(sk);
@@ -4098,8 +4100,6 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
sk_wake_async(sk, 0, POLL_OUT);
}
- icsk = inet_csk(sk);
-
if (sk->sk_write_pending ||
icsk->icsk_accept_queue.rskq_defer_accept ||
icsk->icsk_ack.pingpong) {
@@ -4220,6 +4220,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
struct tcphdr *th, unsigned len)
{
struct tcp_sock *tp = tcp_sk(sk);
+ struct inet_connection_sock *icsk = inet_csk(sk);
int queued = 0;
tp->rx_opt.saw_tstamp = 0;
@@ -4236,7 +4237,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
goto discard;
if(th->syn) {
- if(tp->af_specific->conn_request(sk, skb) < 0)
+ if (icsk->icsk_af_ops->conn_request(sk, skb) < 0)
return 1;
/* Now we have several options: In theory there is
@@ -4349,7 +4350,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
/* Make sure socket is routed, for
* correct metrics.
*/
- tp->af_specific->rebuild_header(sk);
+ icsk->icsk_af_ops->rebuild_header(sk);
tcp_init_metrics(sk);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 2aa19c8..704cf21 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -86,8 +86,7 @@ int sysctl_tcp_low_latency;
/* Socket used for sending RSTs */
static struct socket *tcp_socket;
-void tcp_v4_send_check(struct sock *sk, struct tcphdr *th, int len,
- struct sk_buff *skb);
+void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb);
struct inet_hashinfo __cacheline_aligned tcp_hashinfo = {
.lhash_lock = RW_LOCK_UNLOCKED,
@@ -645,10 +644,10 @@ out:
}
/* This routine computes an IPv4 TCP checksum. */
-void tcp_v4_send_check(struct sock *sk, struct tcphdr *th, int len,
- struct sk_buff *skb)
+void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
{
struct inet_sock *inet = inet_sk(sk);
+ struct tcphdr *th = skb->h.th;
if (skb->ip_summed == CHECKSUM_HW) {
th->check = ~tcp_v4_check(th, len, inet->saddr, inet->daddr, 0);
@@ -1383,7 +1382,7 @@ int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw)
return 0;
}
-struct tcp_func ipv4_specific = {
+struct inet_connection_sock_af_ops ipv4_specific = {
.queue_xmit = ip_queue_xmit,
.send_check = tcp_v4_send_check,
.rebuild_header = inet_sk_rebuild_header,
@@ -1434,7 +1433,7 @@ static int tcp_v4_init_sock(struct sock *sk)
sk->sk_write_space = sk_stream_write_space;
sock_set_flag(sk, SOCK_USE_WRITE_QUEUE);
- tp->af_specific = &ipv4_specific;
+ icsk->icsk_af_ops = &ipv4_specific;
sk->sk_sndbuf = sysctl_tcp_wmem[1];
sk->sk_rcvbuf = sysctl_tcp_rmem[1];
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 1b66a2a..9c02968 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -274,18 +274,18 @@ kill:
void tcp_time_wait(struct sock *sk, int state, int timeo)
{
struct inet_timewait_sock *tw = NULL;
+ const struct inet_connection_sock *icsk = inet_csk(sk);
const struct tcp_sock *tp = tcp_sk(sk);
int recycle_ok = 0;
if (tcp_death_row.sysctl_tw_recycle && tp->rx_opt.ts_recent_stamp)
- recycle_ok = tp->af_specific->remember_stamp(sk);
+ recycle_ok = icsk->icsk_af_ops->remember_stamp(sk);
if (tcp_death_row.tw_count < tcp_death_row.sysctl_max_tw_buckets)
tw = inet_twsk_alloc(sk, state);
if (tw != NULL) {
struct tcp_timewait_sock *tcptw = tcp_twsk((struct sock *)tw);
- const struct inet_connection_sock *icsk = inet_csk(sk);
const int rto = (icsk->icsk_rto << 2) - (icsk->icsk_rto >> 1);
tw->tw_rcv_wscale = tp->rx_opt.rcv_wscale;
@@ -456,7 +456,6 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
struct request_sock **prev)
{
struct tcphdr *th = skb->h.th;
- struct tcp_sock *tp = tcp_sk(sk);
u32 flg = tcp_flag_word(th) & (TCP_FLAG_RST|TCP_FLAG_SYN|TCP_FLAG_ACK);
int paws_reject = 0;
struct tcp_options_received tmp_opt;
@@ -613,7 +612,8 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
* ESTABLISHED STATE. If it will be dropped after
* socket is created, wait for troubles.
*/
- child = tp->af_specific->syn_recv_sock(sk, skb, req, NULL);
+ child = inet_csk(sk)->icsk_af_ops->syn_recv_sock(sk, skb,
+ req, NULL);
if (child == NULL)
goto listen_overflow;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index b7325e0..af1946c 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -371,7 +371,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
TCP_ECN_send(sk, tp, skb, tcp_header_size);
}
- tp->af_specific->send_check(sk, th, skb->len, skb);
+ icsk->icsk_af_ops->send_check(sk, skb->len, skb);
if (likely(tcb->flags & TCPCB_FLAG_ACK))
tcp_event_ack_sent(sk, tcp_skb_pcount(skb));
@@ -381,7 +381,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
TCP_INC_STATS(TCP_MIB_OUTSEGS);
- err = tp->af_specific->queue_xmit(skb, 0);
+ err = icsk->icsk_af_ops->queue_xmit(skb, 0);
if (unlikely(err <= 0))
return err;
@@ -638,12 +638,11 @@ int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len)
unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu)
{
struct tcp_sock *tp = tcp_sk(sk);
- int mss_now;
-
/* Calculate base mss without TCP options:
It is MMS_S - sizeof(tcphdr) of rfc1122
*/
- mss_now = pmtu - tp->af_specific->net_header_len - sizeof(struct tcphdr);
+ int mss_now = (pmtu - inet_csk(sk)->icsk_af_ops->net_header_len -
+ sizeof(struct tcphdr));
/* Clamp it (mss_clamp does not include tcp options) */
if (mss_now > tp->rx_opt.mss_clamp)
@@ -705,9 +704,9 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
xmit_size_goal = mss_now;
if (doing_tso) {
- xmit_size_goal = 65535 -
- tp->af_specific->net_header_len -
- tp->ext_header_len - tp->tcp_header_len;
+ xmit_size_goal = (65535 -
+ inet_csk(sk)->icsk_af_ops->net_header_len -
+ tp->ext_header_len - tp->tcp_header_len);
if (tp->max_window &&
(xmit_size_goal > (tp->max_window >> 1)))
@@ -1422,7 +1421,7 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
(sysctl_tcp_retrans_collapse != 0))
tcp_retrans_try_collapse(sk, skb, cur_mss);
- if(tp->af_specific->rebuild_header(sk))
+ if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
return -EHOSTUNREACH; /* Routing failure or similar. */
/* Some Solaris stacks overoptimize and ignore the FIN on a
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