diff options
| author |   Craig Gallek <kraig@google.com> | 2016-01-04 17:41:47 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-01-04 22:49:59 -0500 |
| commit | 538950a1b7527a0a52ccd9337e3fcd304f027f13 (patch) | |
| tree | 2ecd86127a55719e61ea9a37aeb1cc7be8022d0f /net/ipv4 | |
| parent | soreuseport: fast reuseport UDP socket selection (diff) | |
| download | linux-dev-538950a1b7527a0a52ccd9337e3fcd304f027f13.tar.xz linux-dev-538950a1b7527a0a52ccd9337e3fcd304f027f13.zip | |
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>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/udp.c | 14 | ||||
| -rw-r--r-- | net/ipv4/udp_diag.c | 4 |
2 files changed, 10 insertions, 8 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 762b01f55707..835378365f25 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -514,7 +514,7 @@ 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; @@ -553,7 +553,7 @@ 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; @@ -602,7 +602,8 @@ 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; @@ -647,14 +648,14 @@ 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); @@ -702,7 +703,8 @@ 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 */ diff --git a/net/ipv4/udp_diag.c b/net/ipv4/udp_diag.c index 6116604bf6e8..df1966f3b6ec 100644 --- a/net/ipv4/udp_diag.c +++ b/net/ipv4/udp_diag.c @@ -44,7 +44,7 @@ static int udp_dump_one(struct udp_table *tbl, struct sk_buff *in_skb, sk = __udp4_lib_lookup(net, req->id.idiag_src[0], req->id.idiag_sport, req->id.idiag_dst[0], req->id.idiag_dport, - req->id.idiag_if, tbl); + req->id.idiag_if, tbl, NULL); #if IS_ENABLED(CONFIG_IPV6) else if (req->sdiag_family == AF_INET6) sk = __udp6_lib_lookup(net, @@ -52,7 +52,7 @@ static int udp_dump_one(struct udp_table *tbl, struct sk_buff *in_skb, req->id.idiag_sport, (struct in6_addr *)req->id.idiag_dst, req->id.idiag_dport, - req->id.idiag_if, tbl); + req->id.idiag_if, tbl, NULL); #endif else goto out_nosk; |