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net: diag: support SOCK_DESTROY for UDP sockets

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This implements SOCK_DESTROY for UDP sockets similar to what was done
for TCP with commit c1e64e298b ("net: diag: Support destroying TCP
sockets.") A process with a UDP socket targeted for destroy is awakened
and recvmsg fails with ECONNABORTED.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern
2016-08-23 21:06:33 -07:00
committed by David S. Miller
parent 5128b18522
commit 5d77dca828
4 changed files with 96 additions and 0 deletions
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1
include/net/udp.h
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@@ -251,6 +251,7 @@ int udp_get_port(struct sock *sk, unsigned short snum,
int (*saddr_cmp)(const struct sock *,
const struct sock *));
void udp_err(struct sk_buff *, u32);
int udp_abort(struct sock *sk, int err);
int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len);
int udp_push_pending_frames(struct sock *sk);
void udp_flush_pending_frames(struct sock *sk);