[TCP]: Restore SKB socket owner setting in tcp_transmit_skb().

Revert 931731123a103cfb3f70ac4b7abfc71d94ba1f03

We can't elide the skb_set_owner_w() here because things like certain
netfilter targets (such as owner MATCH) need a socket to be set on the
SKB for correct operation.

Thanks to Jan Engelhardt and other netfilter list members for
pointing this out.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/inet6_connection_sock.h b/include/net/inet6_connection_sock.h
index 16aa96a..f13ddc2 100644 (file)
--- a/include/net/inet6_connection_sock.h
+++ b/include/net/inet6_connection_sock.h
@@ -38,5 +38,5 @@ extern void inet6_csk_reqsk_queue_hash_add(struct sock *sk,
 
 extern void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
 
-extern int inet6_csk_xmit(struct sk_buff *skb, struct sock *sk, int ipfragok);
+extern int inet6_csk_xmit(struct sk_buff *skb, int ipfragok);
 #endif /* _INET6_CONNECTION_SOCK_H */

diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index bf16d98..133cf30 100644 (file)
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -37,8 +37,7 @@ struct tcp_congestion_ops;
  * (i.e. things that depend on the address family)
  */
 struct inet_connection_sock_af_ops {
-       int         (*queue_xmit)(struct sk_buff *skb, struct sock *sk,
-                                 int ipfragok);
+       int         (*queue_xmit)(struct sk_buff *skb, int ipfragok);
        void        (*send_check)(struct sock *sk, int len,
                                  struct sk_buff *skb);
        int         (*rebuild_header)(struct sock *sk);

diff --git a/include/net/ip.h b/include/net/ip.h
index 053f02b..e79c3e3 100644 (file)
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -97,7 +97,7 @@ extern int            ip_mc_output(struct sk_buff *skb);
 extern int             ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
 extern int             ip_do_nat(struct sk_buff *skb);
 extern void            ip_send_check(struct iphdr *ip);
-extern int             ip_queue_xmit(struct sk_buff *skb, struct sock *sk, int ipfragok);
+extern int             ip_queue_xmit(struct sk_buff *skb, int ipfragok);
 extern void            ip_init(void);
 extern int             ip_append_data(struct sock *sk,
                                       int getfrag(void *from, char *to, int offset, int len,

diff --git a/net/dccp/output.c b/net/dccp/output.c
index 8245696..3435542 100644 (file)
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -124,7 +124,7 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb)
                DCCP_INC_STATS(DCCP_MIB_OUTSEGS);
 
                memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
-               err = icsk->icsk_af_ops->queue_xmit(skb, sk, 0);
+               err = icsk->icsk_af_ops->queue_xmit(skb, 0);
                return net_xmit_eval(err);
        }
        return -ENOBUFS;
@@ -396,7 +396,7 @@ int dccp_send_reset(struct sock *sk, enum dccp_reset_codes code)
                                                      code);
                if (skb != NULL) {
                        memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
-                       err = inet_csk(sk)->icsk_af_ops->queue_xmit(skb, sk, 0);
+                       err = inet_csk(sk)->icsk_af_ops->queue_xmit(skb, 0);
                        return net_xmit_eval(err);
                }
        }

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index f071f84..a0f2008 100644 (file)
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -281,8 +281,9 @@ int ip_output(struct sk_buff *skb)
                            !(IPCB(skb)->flags & IPSKB_REROUTED));
 }
 
-int ip_queue_xmit(struct sk_buff *skb, struct sock *sk, int ipfragok)
+int ip_queue_xmit(struct sk_buff *skb, int ipfragok)
 {
+       struct sock *sk = skb->sk;
        struct inet_sock *inet = inet_sk(sk);
        struct ip_options *opt = inet->opt;
        struct rtable *rt;

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 23e32c8..975f447 100644 (file)
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -467,6 +467,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 
        th = (struct tcphdr *) skb_push(skb, tcp_header_size);
        skb->h.th = th;
+       skb_set_owner_w(skb, sk);
 
        /* Build TCP header and checksum it. */
        th->source              = inet->sport;
@@ -540,7 +541,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
        if (after(tcb->end_seq, tp->snd_nxt) || tcb->seq == tcb->end_seq)
                TCP_INC_STATS(TCP_MIB_OUTSEGS);
 
-       err = icsk->icsk_af_ops->queue_xmit(skb, sk, 0);
+       err = icsk->icsk_af_ops->queue_xmit(skb, 0);
        if (likely(err <= 0))
                return err;
 

diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index c700302..116f94a 100644 (file)
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -139,8 +139,9 @@ void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr * uaddr)
 
 EXPORT_SYMBOL_GPL(inet6_csk_addr2sockaddr);
 
-int inet6_csk_xmit(struct sk_buff *skb, struct sock *sk, int ipfragok)
+int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
 {
+       struct sock *sk = skb->sk;
        struct inet_sock *inet = inet_sk(sk);
        struct ipv6_pinfo *np = inet6_sk(sk);
        struct flowi fl;

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 225f39b..0ef4812 100644 (file)
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -804,7 +804,7 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
                          NIPQUAD(((struct rtable *)skb->dst)->rt_dst));
 
        SCTP_INC_STATS(SCTP_MIB_OUTSCTPPACKS);
-       return ip_queue_xmit(skb, skb->sk, ipfragok);
+       return ip_queue_xmit(skb, ipfragok);
 }
 
 static struct sctp_af sctp_ipv4_specific;