diff options
Diffstat (limited to 'net/ipv4/raw.c')
| -rw-r--r-- | net/ipv4/raw.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index a1d8218fa1a2..4cb43401e0e0 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -175,6 +175,13 @@ static int raw_v4_input(struct net *net, struct sk_buff *skb, if (!raw_v4_match(net, sk, iph->protocol, iph->saddr, iph->daddr, dif, sdif)) continue; + + if (atomic_read(&sk->sk_rmem_alloc) >= + READ_ONCE(sk->sk_rcvbuf)) { + atomic_inc(&sk->sk_drops); + continue; + } + delivered = 1; if ((iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) && ip_mc_sf_allow(sk, iph->daddr, iph->saddr, @@ -310,7 +317,7 @@ int raw_rcv(struct sock *sk, struct sk_buff *skb) } nf_reset_ct(skb); - skb_push(skb, skb->data - skb_network_header(skb)); + skb_push(skb, -skb_network_offset(skb)); raw_rcv_skb(sk, skb); return 0; @@ -819,7 +826,7 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o out: return ret; } -static int do_raw_setsockopt(struct sock *sk, int level, int optname, +static int do_raw_setsockopt(struct sock *sk, int optname, sockptr_t optval, unsigned int optlen) { if (optname == ICMP_FILTER) { @@ -836,11 +843,11 @@ static int raw_setsockopt(struct sock *sk, int level, int optname, { if (level != SOL_RAW) return ip_setsockopt(sk, level, optname, optval, optlen); - return do_raw_setsockopt(sk, level, optname, optval, optlen); + return do_raw_setsockopt(sk, optname, optval, optlen); } -static int do_raw_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen) +static int do_raw_getsockopt(struct sock *sk, int optname, + char __user *optval, int __user *optlen) { if (optname == ICMP_FILTER) { if (inet_sk(sk)->inet_num != IPPROTO_ICMP) @@ -856,7 +863,7 @@ static int raw_getsockopt(struct sock *sk, int level, int optname, { if (level != SOL_RAW) return ip_getsockopt(sk, level, optname, optval, optlen); - return do_raw_getsockopt(sk, level, optname, optval, optlen); + return do_raw_getsockopt(sk, optname, optval, optlen); } static int raw_ioctl(struct sock *sk, int cmd, int *karg) |