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ldpd: add support for FreeBSD IP_BINDANY

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Add yet another way to setsockopt a socket to listen to a foreign
address.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
This commit is contained in:
Rafael Zalamena 2018-12-21 12:27:44 -02:00
parent f6913418f3
commit 1ef00571f8
1 changed files with 11 additions and 2 deletions
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13
ldpd/socket.c
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@ -268,9 +268,18 @@ sock_set_bindany(int fd, int enable)
return (-1);
}
return (0);
#elif defined(IP_BINDANY)
frr_elevate_privs(&ldpd_privs) {
if (setsockopt(fd, IPPROTO_IP, IP_BINDANY, &enable, sizeof(int))
< 0) {
log_warn("%s: error setting IP_BINDANY", __func__);
return (-1);
}
}
#else
log_warnx("%s: missing SO_BINDANY and IP_FREEBIND, unable to bind "
"to a nonlocal IP address", __func__);
log_warnx(
"%s: missing SO_BINDANY, IP_FREEBIND and IP_BINDANY, unable to bind to a nonlocal IP address",
__func__);
return (-1);
#endif /* HAVE_SO_BINDANY */
}