xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: diag: support SOCK_DESTROY for UDP sockets

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

15
net/ipv4/udp.c
View File

@@ -2193,6 +2193,20 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
}
EXPORT_SYMBOL(udp_poll);
int udp_abort(struct sock *sk, int err)
{
lock_sock(sk);
sk->sk_err = err;
sk->sk_error_report(sk);
udp_disconnect(sk, 0);
release_sock(sk);
return 0;
}
EXPORT_SYMBOL_GPL(udp_abort);
struct proto udp_prot = {
.name = "UDP",
.owner = THIS_MODULE,
@@ -2224,6 +2238,7 @@ struct proto udp_prot = {
.compat_getsockopt = compat_udp_getsockopt,
#endif
.clear_sk = sk_prot_clear_portaddr_nulls,
.diag_destroy = udp_abort,
};
EXPORT_SYMBOL(udp_prot);