From acc4e8388aadd10da210bd56d3ffec8a8a217994 Mon Sep 17 00:00:00 2001 From: Craig Gallek Date: Mon, 4 Jan 2016 17:41:47 -0500 Subject: 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 Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller Signed-off-by: Chatur27 Change-Id: I4433dfd5d865bb69e8d3cab55cc68325829e8b49 --- include/net/sock_reuseport.h | 10 +++++++++- include/net/udp.h | 5 +++-- 2 files changed, 12 insertions(+), 3 deletions(-) (limited to 'include/net') diff --git a/include/net/sock_reuseport.h b/include/net/sock_reuseport.h index 67d1eb8fd7af..7dda3d7adba8 100644 --- a/include/net/sock_reuseport.h +++ b/include/net/sock_reuseport.h @@ -1,6 +1,8 @@ #ifndef _SOCK_REUSEPORT_H #define _SOCK_REUSEPORT_H +#include +#include #include #include @@ -9,12 +11,18 @@ struct sock_reuseport { u16 max_socks; /* length of socks */ u16 num_socks; /* elements in socks */ + struct bpf_prog __rcu *prog; /* optional BPF sock selector */ struct sock *socks[0]; /* array of sock pointers */ }; extern int reuseport_alloc(struct sock *sk); extern int reuseport_add_sock(struct sock *sk, const struct sock *sk2); extern void reuseport_detach_sock(struct sock *sk); -extern struct sock *reuseport_select_sock(struct sock *sk, u32 hash); +extern struct sock *reuseport_select_sock(struct sock *sk, + u32 hash, + struct sk_buff *skb, + int hdr_len); +extern struct bpf_prog *reuseport_attach_prog(struct sock *sk, + struct bpf_prog *prog); #endif /* _SOCK_REUSEPORT_H */ diff --git a/include/net/udp.h b/include/net/udp.h index 8fa1820b4750..13bd641be453 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -259,7 +259,7 @@ struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport, __be32 daddr, __be16 dport, int dif); struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport, __be32 daddr, __be16 dport, int dif, - struct udp_table *tbl); + struct udp_table *tbl, struct sk_buff *skb); struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport, const struct in6_addr *daddr, __be16 dport, @@ -267,7 +267,8 @@ struct sock *udp6_lib_lookup(struct net *net, struct sock *__udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport, const struct in6_addr *daddr, __be16 dport, - int dif, struct udp_table *tbl); + int dif, struct udp_table *tbl, + struct sk_buff *skb); /* * SNMP statistics for UDP and UDP-Lite -- cgit v1.2.3