diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ah4.c | 2 | ||||
| -rw-r--r-- | net/ipv4/ip_sockglue.c | 4 | ||||
| -rw-r--r-- | net/ipv4/netfilter/nf_nat_sip.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp_input.c | 10 |
4 files changed, 15 insertions, 3 deletions
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c index 7a23e59c374a..39f6211f1496 100644 --- a/net/ipv4/ah4.c +++ b/net/ipv4/ah4.c @@ -46,7 +46,7 @@ static int ip_clear_mutable_options(struct iphdr *iph, __be32 *daddr) memcpy(daddr, optptr+optlen-4, 4); /* Fall through */ default: - memset(optptr+2, 0, optlen-2); + memset(optptr, 0, optlen); } l -= optlen; optptr += optlen; diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 4d544573f48a..6b420aedcdcf 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -625,6 +625,10 @@ static int do_ip_setsockopt(struct sock *sk, int level, { struct ip_mreqn mreq; + err = -EPROTO; + if (inet_sk(sk)->is_icsk) + break; + if (optlen < sizeof(struct ip_mreq)) goto e_inval; err = -EFAULT; diff --git a/net/ipv4/netfilter/nf_nat_sip.c b/net/ipv4/netfilter/nf_nat_sip.c index a889ec3ec83a..e14d41976c27 100644 --- a/net/ipv4/netfilter/nf_nat_sip.c +++ b/net/ipv4/netfilter/nf_nat_sip.c @@ -104,7 +104,7 @@ static unsigned int ip_nat_sip(struct sk_buff **pskb, dataoff = ip_hdrlen(*pskb) + sizeof(struct udphdr); datalen = (*pskb)->len - dataoff; if (datalen < sizeof("SIP/2.0") - 1) - return NF_DROP; + return NF_ACCEPT; addr_map_init(ct, &map); diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index f030435e0eb4..9785df37a65f 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -755,7 +755,15 @@ void tcp_update_metrics(struct sock *sk) } } -/* Numbers are taken from RFC2414. */ +/* Numbers are taken from RFC3390. + * + * John Heffner states: + * + * The RFC specifies a window of no more than 4380 bytes + * unless 2*MSS > 4380. Reading the pseudocode in the RFC + * is a bit misleading because they use a clamp at 4380 bytes + * rather than use a multiplier in the relevant range. + */ __u32 tcp_init_cwnd(struct tcp_sock *tp, struct dst_entry *dst) { __u32 cwnd = (dst ? dst_metric(dst, RTAX_INITCWND) : 0); |