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util: Don't close ping sockets if bind() fails

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...they're still usable, thanks to the workaround implemented in
icmp_tap_handler().

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2021-08-04 01:44:58 +02:00
parent a340e5336d
commit ce24fe0b3f
1 changed files with 6 additions and 3 deletions
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5
util.c
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@ -189,11 +189,14 @@ int sock_l4(struct ctx *c, int af, uint8_t proto, uint16_t port,
if (bind(fd, sa, sl) < 0) {
/* We'll fail to bind to low ports if we don't have enough
* capabilities, and we'll fail to bind on already bound ports,
* this is fine.
* this is fine. This might also fail for ICMP because of a
* broken SELinux policy, see icmp_tap_handler().
*/
if (proto != IPPROTO_ICMP && proto != IPPROTO_ICMPV6) {
close(fd);
return 0;
}
}
if (proto == IPPROTO_TCP && listen(fd, 128) < 0) {
perror("TCP socket listen");