int
shim_sock_init(void)
{
int shim_sock;
if ( svd_privs.change (ZPRIVS_RAISE) )
zlog_err ("shim_sock_init: could not raise privs, %s",
safe_strerror (errno) );
shim_sock = socket (AF_INET6, SOCK_RAW, IPPROTO_OSPFIGP);
if (shim_sock < 0)
{
int save_errno = errno;
if ( svd_privs.change (ZPRIVS_LOWER) )
zlog_err ("shim_sock_init: could not lower privs, %s",
safe_strerror (errno) );
zlog_err ("shim_sock_init: socket: %s", safe_strerror (save_errno));
exit(1);
}
if (svd_privs.change (ZPRIVS_LOWER))
{
zlog_err ("shim_sock_init: could not lower privs, %s",
safe_strerror (errno) );
}
sockopt_reuseaddr (shim_sock);
u_int off = 0;
if (setsockopt (shim_sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
&off, sizeof (u_int)) < 0)
zlog_warn ("Network: reset IPV6_MULTICAST_LOOP failed: %s",
safe_strerror (errno));
if (setsockopt_ipv6_pktinfo (shim_sock, 1) < 0)
zlog_warn ("Can't set pktinfo option for fd %d", shim_sock);
int offset = 12;
#ifndef DISABLE_IPV6_CHECKSUM
if (setsockopt (shim_sock, IPPROTO_IPV6, IPV6_CHECKSUM,
&offset, sizeof (offset)) < 0)
zlog_warn ("Network: set IPV6_CHECKSUM failed: %s", safe_strerror (errno));
#else
zlog_warn ("Network: Don't set IPV6_CHECKSUM");
#endif /* DISABLE_IPV6_CHECKSUM */
inet_pton (AF_INET6, ALLSPFROUTERS6, &allspfrouters6);
inet_pton (AF_INET6, ALLDROUTERS6, &alldrouters6);
return shim_sock;
}
int
setsockopt_ifindex (int af, int sock, int val)
{
int ret = -1;
switch (af)
{
case AF_INET:
ret = setsockopt_ipv4_ifindex (sock, val);
break;
#ifdef HAVE_IPV6
case AF_INET6:
ret = setsockopt_ipv6_pktinfo (sock, val);
break;
#endif
default:
zlog_warn ("setsockopt_ifindex: unknown address family %d", af);
}
return ret;
}
void
ospf6_set_pktinfo (void)
{
setsockopt_ipv6_pktinfo (ospf6_sock, 1);
}
