diff options
| author | Craig Gallek <kraig@google.com> | 2016-01-04 17:41:47 -0500 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2022-04-19 00:49:57 +0300 |
| commit | acc4e8388aadd10da210bd56d3ffec8a8a217994 (patch) | |
| tree | 55336db5c9f0b808e437c65ad362afd145f3b1c2 /net/ipv4/udp.c | |
| parent | 6a594c47d15209b49b6d322c89f4e68ece07e5f7 (diff) | |
soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF
Expose socket options for setting a classic or extended BPF program
for use when selecting sockets in an SO_REUSEPORT group. These options
can be used on the first socket to belong to a group before bind or
on any socket in the group after bind.
This change includes refactoring of the existing sk_filter code to
allow reuse of the existing BPF filter validation checks.
Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Change-Id: I4433dfd5d865bb69e8d3cab55cc68325829e8b49
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 134fe5651e86..0a0d44c53373 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -519,7 +519,7 @@ begin: struct sock *sk2; hash = udp_ehashfn(net, daddr, hnum, saddr, sport); - sk2 = reuseport_select_sock(sk, hash); + sk2 = reuseport_select_sock(sk, hash, NULL, 0); if (sk2) { result = sk2; goto found; @@ -558,7 +558,7 @@ found: */ struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport, __be32 daddr, __be16 dport, - int dif, struct udp_table *udptable) + int dif, struct udp_table *udptable, struct sk_buff *skb) { struct sock *sk, *result; struct hlist_nulls_node *node; @@ -607,7 +607,8 @@ begin: struct sock *sk2; hash = udp_ehashfn(net, daddr, hnum, saddr, sport); - sk2 = reuseport_select_sock(sk, hash); + sk2 = reuseport_select_sock(sk, hash, skb, + sizeof(struct udphdr)); if (sk2) { result = sk2; goto found; @@ -652,14 +653,14 @@ static inline struct sock *__udp4_lib_lookup_skb(struct sk_buff *skb, return __udp4_lib_lookup(dev_net(skb_dst(skb)->dev), iph->saddr, sport, iph->daddr, dport, inet_iif(skb), - udptable); + udptable, skb); } struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport, __be32 daddr, __be16 dport, int dif) { return __udp4_lib_lookup(net, saddr, sport, daddr, dport, dif, - &udp_table); + &udp_table, NULL); } EXPORT_SYMBOL_GPL(udp4_lib_lookup); @@ -707,7 +708,8 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct udp_table *udptable) struct net *net = dev_net(skb->dev); sk = __udp4_lib_lookup(net, iph->daddr, uh->dest, - iph->saddr, uh->source, skb->dev->ifindex, udptable); + iph->saddr, uh->source, skb->dev->ifindex, udptable, + NULL); if (!sk) { ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS); return; /* No socket for error */ |