diff options
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index eaca73644e7..b4c3582a991 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -108,6 +108,7 @@ #include <net/xfrm.h> #include <trace/events/udp.h> #include <linux/static_key.h> +#include <trace/events/skb.h> #include "udp_impl.h" struct udp_table udp_table __read_mostly; @@ -615,6 +616,7 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct udp_table *udptable) break; case ICMP_DEST_UNREACH: if (code == ICMP_FRAG_NEEDED) { /* Path MTU discovery */ + ipv4_sk_update_pmtu(skb, sk, info); if (inet->pmtudisc != IP_PMTUDISC_DONT) { err = EMSGSIZE; harderr = 1; @@ -628,6 +630,9 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct udp_table *udptable) err = icmp_err_convert[code].errno; } break; + case ICMP_REDIRECT: + ipv4_sk_redirect(skb, sk); + break; } /* @@ -1219,8 +1224,10 @@ try_again: goto csum_copy_err; } - if (err) + if (unlikely(err)) { + trace_kfree_skb(skb, udp_recvmsg); goto out_free; + } if (!peeked) UDP_INC_STATS_USER(sock_net(sk), |