diff options
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 7decaa439360..e3b0b55f2c92 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -836,7 +836,8 @@ static int tcp_v4_send_synack(const struct sock *sk, struct dst_entry *dst, struct sk_buff *skb; /* First, grab a route. */ - if (!dst && (dst = inet_csk_route_req(sk, &fl4, req)) == NULL) + if (!dst && (dst = inet_csk_route_req( + (struct sock *)sk, &fl4, req)) == NULL) return -1; skb = tcp_make_synack(sk, dst, req, foc, attach_req); @@ -1195,7 +1196,8 @@ static struct dst_entry *tcp_v4_route_req(const struct sock *sk, const struct request_sock *req, bool *strict) { - struct dst_entry *dst = inet_csk_route_req(sk, &fl->u.ip4, req); + struct dst_entry *dst = inet_csk_route_req( + (struct sock *)sk, &fl->u.ip4, req); if (strict) { if (fl->u.ip4.daddr == inet_rsk(req)->ir_rmt_addr) @@ -1527,6 +1529,21 @@ bool tcp_prequeue(struct sock *sk, struct sk_buff *skb) } EXPORT_SYMBOL(tcp_prequeue); +int tcp_filter(struct sock *sk, struct sk_buff *skb) +{ + struct tcphdr *th = (struct tcphdr *)skb->data; + unsigned int eaten = skb->len; + int err; + + err = sk_filter_trim_cap(sk, skb, th->doff * 4); + if (!err) { + eaten -= skb->len; + TCP_SKB_CB(skb)->end_seq -= eaten; + } + return err; +} +EXPORT_SYMBOL(tcp_filter); + /* * From tcp_input.c */ @@ -1632,8 +1649,10 @@ process: nf_reset(skb); - if (sk_filter(sk, skb)) + if (tcp_filter(sk, skb)) goto discard_and_relse; + th = (const struct tcphdr *)skb->data; + iph = ip_hdr(skb); skb->dev = NULL; @@ -2165,6 +2184,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i) __be32 src = inet->inet_rcv_saddr; __u16 destp = ntohs(inet->inet_dport); __u16 srcp = ntohs(inet->inet_sport); + __u8 seq_state = sk->sk_state; int rx_queue; int state; @@ -2184,6 +2204,9 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i) timer_expires = jiffies; } + if (inet->transparent) + seq_state |= 0x80; + state = sk_state_load(sk); if (state == TCP_LISTEN) rx_queue = sk->sk_ack_backlog; @@ -2195,7 +2218,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i) seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX " "%08X %5u %8d %lu %d %pK %lu %lu %u %u %d", - i, src, srcp, dest, destp, state, + i, src, srcp, dest, destp, seq_state, tp->write_seq - tp->snd_una, rx_queue, timer_active, |