diff options
| author | Craig Gallek <kraig@google.com> | 2016-01-05 15:08:07 -0500 |
|---|---|---|
| committer | Bruno Martins <bgcngm@gmail.com> | 2022-10-28 15:39:23 +0100 |
| commit | fe161031b8a88cc6efcbd1250704c49260819d44 (patch) | |
| tree | 11c05a92e49aa8b394634affaa06ee710a564e08 /net/ipv4 | |
| parent | 9223919efdf288f356b14ab8d04d4767f7bd64e1 (diff) | |
soreuseport: pass skb to secondary UDP socket lookup
This socket-lookup path did not pass along the skb in question
in my original BPF-based socket selection patch. The skb in the
udpN_lib_lookup2 path can be used for BPF-based socket selection just
like it is in the 'traditional' udpN_lib_lookup path.
udpN_lib_lookup2 kicks in when there are greater than 10 sockets in
the same hlist slot. Coincidentally, I chose 10 sockets per
reuseport group in my functional test, so the lookup2 path was not
excersised. This adds an additional set of tests with 20 sockets.
Fixes: 538950a1b752 ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
Fixes: 3ca8e4029969 ("soreuseport: BPF selection functional test")
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change-Id: I776c36c23fd6209e9521d9529c47c46667abf3e0
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/udp.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 0a0d44c53373..daca57dae6cf 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -498,7 +498,8 @@ static u32 udp_ehashfn(const struct net *net, const __be32 laddr, static struct sock *udp4_lib_lookup2(struct net *net, __be32 saddr, __be16 sport, __be32 daddr, unsigned int hnum, int dif, - struct udp_hslot *hslot2, unsigned int slot2) + struct udp_hslot *hslot2, unsigned int slot2, + struct sk_buff *skb) { struct sock *sk, *result; struct hlist_nulls_node *node; @@ -519,7 +520,8 @@ begin: struct sock *sk2; hash = udp_ehashfn(net, daddr, hnum, saddr, sport); - sk2 = reuseport_select_sock(sk, hash, NULL, 0); + sk2 = reuseport_select_sock(sk, hash, skb, + sizeof(struct udphdr)); if (sk2) { result = sk2; goto found; @@ -578,7 +580,7 @@ struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, result = udp4_lib_lookup2(net, saddr, sport, daddr, hnum, dif, - hslot2, slot2); + hslot2, slot2, skb); if (!result) { hash2 = udp4_portaddr_hash(net, htonl(INADDR_ANY), hnum); slot2 = hash2 & udptable->mask; @@ -588,7 +590,7 @@ struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, result = udp4_lib_lookup2(net, saddr, sport, htonl(INADDR_ANY), hnum, dif, - hslot2, slot2); + hslot2, slot2, skb); } rcu_read_unlock(); return result; |