X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=net%2Fipv4%2Ftcp_minisocks.c;h=0163d98269074c40507b173b3f99837ef503954f;hb=74975d40b16fd4bad24a2e2630dc7957d8cba013;hp=1b66a2ac4321cb3dfe42326a03baa0897b016f37;hpb=a9931a6e37c09f6b76a9fa0cbd777c335548692b;p=cascardo%2Flinux.git

diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 1b66a2ac4321..0163d9826907 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -20,7 +20,6 @@
  *		Jorge Cwik, <jorge@laser.satlink.net>
  */
 
-#include <linux/config.h>
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/sysctl.h>
@@ -35,13 +34,13 @@
 #define SYNC_INIT 1
 #endif
 
-int sysctl_tcp_syncookies = SYNC_INIT; 
-int sysctl_tcp_abort_on_overflow;
+int sysctl_tcp_syncookies __read_mostly = SYNC_INIT;
+int sysctl_tcp_abort_on_overflow __read_mostly;
 
 struct inet_timewait_death_row tcp_death_row = {
 	.sysctl_max_tw_buckets = NR_FILE * 2,
 	.period		= TCP_TIMEWAIT_LEN / INET_TWDR_TWKILL_SLOTS,
-	.death_lock	= SPIN_LOCK_UNLOCKED,
+	.death_lock	= __SPIN_LOCK_UNLOCKED(tcp_death_row.death_lock),
 	.hashinfo	= &tcp_hashinfo,
 	.tw_timer	= TIMER_INITIALIZER(inet_twdr_hangman, 0,
 					    (unsigned long)&tcp_death_row),
@@ -274,18 +273,18 @@ 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;
@@ -298,10 +297,12 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 		if (tw->tw_family == PF_INET6) {
 			struct ipv6_pinfo *np = inet6_sk(sk);
-			struct tcp6_timewait_sock *tcp6tw = tcp6_twsk((struct sock *)tw);
+			struct inet6_timewait_sock *tw6;
 
-			ipv6_addr_copy(&tcp6tw->tw_v6_daddr, &np->daddr);
-			ipv6_addr_copy(&tcp6tw->tw_v6_rcv_saddr, &np->rcv_saddr);
+			tw->tw_ipv6_offset = inet6_tw_offset(sk->sk_prot);
+			tw6 = inet6_twsk((struct sock *)tw);
+			ipv6_addr_copy(&tw6->tw_v6_daddr, &np->daddr);
+			ipv6_addr_copy(&tw6->tw_v6_rcv_saddr, &np->rcv_saddr);
 			tw->tw_ipv6only = np->ipv6only;
 		}
 #endif
@@ -438,8 +439,6 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req,
 			newicsk->icsk_ack.last_seg_size = skb->len - newtp->tcp_header_len;
 		newtp->rx_opt.mss_clamp = req->mss;
 		TCP_ECN_openreq_child(newtp, req);
-		if (newtp->ecn_flags&TCP_ECN_OK)
-			sock_set_flag(newsk, SOCK_NO_LARGESEND);
 
 		TCP_INC_STATS_BH(TCP_MIB_PASSIVEOPENS);
 	}
@@ -456,7 +455,6 @@ 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;
@@ -591,8 +589,10 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
 		/* RFC793: "second check the RST bit" and
 		 *	   "fourth, check the SYN bit"
 		 */
-		if (flg & (TCP_FLAG_RST|TCP_FLAG_SYN))
+		if (flg & (TCP_FLAG_RST|TCP_FLAG_SYN)) {
+			TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
 			goto embryonic_reset;
+		}
 
 		/* ACK sequence verified above, just make sure ACK is
 		 * set.  If ACK not set, just silently drop the packet.
@@ -613,7 +613,8 @@ 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;