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| author | Jiang Wang <jiang.wang@bytedance.com> | 2021-08-16 19:03:21 +0000 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2021-08-16 18:43:39 -0700 |
| commit | 94531cfcbe79c3598acf96806627b2137ca32eb9 (patch) | |
| tree | 5936ad0cab83523153696d063f181c4dcce75b6d /include/net | |
| parent | 77462de14a43f4d98dbd8de0f5743a4e02450b1d (diff) | |
| download | linux-94531cfcbe79c3598acf96806627b2137ca32eb9.tar.gz linux-94531cfcbe79c3598acf96806627b2137ca32eb9.tar.bz2 linux-94531cfcbe79c3598acf96806627b2137ca32eb9.zip | |
af_unix: Add unix_stream_proto for sockmap
Previously, sockmap for AF_UNIX protocol only supports
dgram type. This patch add unix stream type support, which
is similar to unix_dgram_proto. To support sockmap, dgram
and stream cannot share the same unix_proto anymore, because
they have different implementations, such as unhash for stream
type (which will remove closed or disconnected sockets from the map),
so rename unix_proto to unix_dgram_proto and add a new
unix_stream_proto.
Also implement stream related sockmap functions.
And add dgram key words to those dgram specific functions.
Signed-off-by: Jiang Wang <jiang.wang@bytedance.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20210816190327.2739291-3-jiang.wang@bytedance.com
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/af_unix.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/net/af_unix.h b/include/net/af_unix.h index 4757d7f53f13..7d142e8a0550 100644 --- a/include/net/af_unix.h +++ b/include/net/af_unix.h @@ -87,6 +87,8 @@ long unix_outq_len(struct sock *sk); int __unix_dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t size, int flags); +int __unix_stream_recvmsg(struct sock *sk, struct msghdr *msg, size_t size, + int flags); #ifdef CONFIG_SYSCTL int unix_sysctl_register(struct net *net); void unix_sysctl_unregister(struct net *net); @@ -96,9 +98,11 @@ static inline void unix_sysctl_unregister(struct net *net) {} #endif #ifdef CONFIG_BPF_SYSCALL -extern struct proto unix_proto; +extern struct proto unix_dgram_proto; +extern struct proto unix_stream_proto; -int unix_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore); +int unix_dgram_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore); +int unix_stream_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore); void __init unix_bpf_build_proto(void); #else static inline void __init unix_bpf_build_proto(void) |