]> git.baikalelectronics.ru Git - kernel.git/commit
udp: Implement ->read_sock() for sockmap
authorCong Wang <cong.wang@bytedance.com>
Wed, 31 Mar 2021 02:32:32 +0000 (19:32 -0700)
committerAlexei Starovoitov <ast@kernel.org>
Thu, 1 Apr 2021 17:56:14 +0000 (10:56 -0700)
commitd7f571188ecf25c244789b883c878ec7c64b5b08
treef7180f3bdac5f80fbac0000a3927f05fb431013c
parent8a59f9d1e3d4340659fdfee8879dc09a6f2546e1
udp: Implement ->read_sock() for sockmap

This is similar to tcp_read_sock(), except we do not need
to worry about connections, we just need to retrieve skb
from UDP receive queue.

Note, the return value of ->read_sock() is unused in
sk_psock_verdict_data_ready(), and UDP still does not
support splice() due to lack of ->splice_read(), so users
can not reach udp_read_sock() directly.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20210331023237.41094-12-xiyou.wangcong@gmail.com
include/net/udp.h
net/ipv4/af_inet.c
net/ipv4/udp.c
net/ipv6/af_inet6.c