restart_flag_time = stream_getw(s);
if (CHECK_FLAG(restart_flag_time, RESTART_R_BIT))
SET_FLAG(peer->cap, PEER_CAP_RESTART_BIT_RCV);
+ else
+ UNSET_FLAG(peer->cap, PEER_CAP_RESTART_BIT_RCV);
UNSET_FLAG(restart_flag_time, 0xF000);
peer->v_gr_restart = restart_flag_time;
nh_afi = afi_iana2int(pkt_nh_afi);
if (afi != AFI_IP || nh_afi != AFI_IP6
- || !(safi == SAFI_UNICAST
+ || !(safi == SAFI_UNICAST || safi == SAFI_MPLS_VPN
|| safi == SAFI_LABELED_UNICAST)) {
flog_warn(
EC_BGP_CAPABILITY_INVALID_DATA,
if (len) {
str[len] = '\0';
+
+ if (peer->domainname != NULL) {
+ XFREE(MTYPE_BGP_PEER_HOST, peer->domainname);
+ peer->domainname = NULL;
+ }
+
peer->domainname = XSTRDUP(MTYPE_BGP_PEER_HOST, str);
}
int ret;
struct stream *s = BGP_INPUT(peer);
size_t end = stream_get_getp(s) + length;
+ uint16_t restart_flag_time = 0;
assert(STREAM_READABLE(s) >= length);
caphdr.length);
stream_set_getp(s, start + caphdr.length);
}
+
+ if (!CHECK_FLAG(peer->cap, PEER_CAP_RESTART_RCV)) {
+ UNSET_FLAG(restart_flag_time, 0xF000);
+ peer->v_gr_restart = restart_flag_time;
+ }
+
}
return 0;
}
as_t as4 = 0;
if (BGP_DEBUG(as4, AS4))
- zlog_info(
+ zlog_debug(
"%s [AS4] rcv OPEN w/ OPTION parameter len: %u,"
" peeking for as4",
peer->host, length);
if (hdr.code == CAPABILITY_CODE_AS4) {
if (BGP_DEBUG(as4, AS4))
- zlog_info(
+ zlog_debug(
"[AS4] found AS4 capability, about to parse");
as4 = bgp_capability_as4(peer, &hdr);
stream_putc_at(s, capp, cap_len);
}
+static void bgp_peer_send_gr_capability(struct stream *s, struct peer *peer,
+ unsigned long cp)
+{
+ int len;
+ iana_afi_t pkt_afi;
+ afi_t afi;
+ safi_t safi;
+ iana_safi_t pkt_safi;
+ uint32_t restart_time;
+ unsigned long capp = 0;
+ unsigned long rcapp = 0;
+
+ if (!CHECK_FLAG(peer->flags, PEER_FLAG_GRACEFUL_RESTART)
+ && !CHECK_FLAG(peer->flags, PEER_FLAG_GRACEFUL_RESTART_HELPER))
+ return;
+
+ if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART))
+ zlog_debug("[BGP_GR] Sending helper Capability for Peer :%s :",
+ peer->host);
+
+ SET_FLAG(peer->cap, PEER_CAP_RESTART_ADV);
+ stream_putc(s, BGP_OPEN_OPT_CAP);
+ capp = stream_get_endp(s); /* Set Capability Len Pointer */
+ stream_putc(s, 0); /* Capability Length */
+ stream_putc(s, CAPABILITY_CODE_RESTART);
+ /* Set Restart Capability Len Pointer */
+ rcapp = stream_get_endp(s);
+ stream_putc(s, 0);
+ restart_time = peer->bgp->restart_time;
+ if (peer->bgp->t_startup) {
+ SET_FLAG(restart_time, RESTART_R_BIT);
+ SET_FLAG(peer->cap, PEER_CAP_RESTART_BIT_ADV);
+
+ if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART))
+ zlog_debug("[BGP_GR] Sending R-Bit for Peer :%s :",
+ peer->host);
+ }
+
+ stream_putw(s, restart_time);
+
+ /* Send address-family specific graceful-restart capability
+ * only when GR config is present
+ */
+ if (CHECK_FLAG(peer->flags, PEER_FLAG_GRACEFUL_RESTART)) {
+ if (bgp_flag_check(peer->bgp, BGP_FLAG_GR_PRESERVE_FWD)
+ && BGP_DEBUG(graceful_restart, GRACEFUL_RESTART))
+ zlog_debug("[BGP_GR] F bit Set");
+
+ FOREACH_AFI_SAFI (afi, safi) {
+ if (!peer->afc[afi][safi])
+ continue;
+
+ if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART))
+ zlog_debug(
+ "[BGP_GR] Sending GR Capability for AFI :%d :, SAFI :%d:",
+ afi, safi);
+
+ /* Convert AFI, SAFI to values for
+ * packet.
+ */
+ bgp_map_afi_safi_int2iana(afi, safi, &pkt_afi,
+ &pkt_safi);
+ stream_putw(s, pkt_afi);
+ stream_putc(s, pkt_safi);
+ if (bgp_flag_check(peer->bgp, BGP_FLAG_GR_PRESERVE_FWD))
+ stream_putc(s, RESTART_F_BIT);
+ else
+ stream_putc(s, 0);
+ }
+ }
+
+ /* Total Graceful restart capability Len. */
+ len = stream_get_endp(s) - rcapp - 1;
+ stream_putc_at(s, rcapp, len);
+
+ /* Total Capability Len. */
+ len = stream_get_endp(s) - capp - 1;
+ stream_putc_at(s, capp, len);
+}
+
/* Fill in capability open option to the packet. */
void bgp_open_capability(struct stream *s, struct peer *peer)
{
safi_t safi;
iana_safi_t pkt_safi;
as_t local_as;
- uint32_t restart_time;
uint8_t afi_safi_count = 0;
int adv_addpath_tx = 0;
if (CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE)
&& peer->su.sa.sa_family == AF_INET6
&& afi == AFI_IP
- && (safi == SAFI_UNICAST
+ && (safi == SAFI_UNICAST || safi == SAFI_MPLS_VPN
|| safi == SAFI_LABELED_UNICAST)) {
/* RFC 5549 Extended Next Hop Encoding
*/
cmd_domainname_get());
}
- /* Sending base graceful-restart capability irrespective of the config
- */
- SET_FLAG(peer->cap, PEER_CAP_RESTART_ADV);
- stream_putc(s, BGP_OPEN_OPT_CAP);
- capp = stream_get_endp(s); /* Set Capability Len Pointer */
- stream_putc(s, 0); /* Capability Length */
- stream_putc(s, CAPABILITY_CODE_RESTART);
- rcapp = stream_get_endp(s); /* Set Restart Capability Len Pointer */
- stream_putc(s, 0);
- restart_time = peer->bgp->restart_time;
- if (peer->bgp->t_startup) {
- SET_FLAG(restart_time, RESTART_R_BIT);
- SET_FLAG(peer->cap, PEER_CAP_RESTART_BIT_ADV);
- }
- stream_putw(s, restart_time);
-
- /* Send address-family specific graceful-restart capability only when GR
- config
- is present */
- if (bgp_flag_check(peer->bgp, BGP_FLAG_GRACEFUL_RESTART)) {
- FOREACH_AFI_SAFI (afi, safi) {
- if (peer->afc[afi][safi]) {
- /* Convert AFI, SAFI to values for
- * packet. */
- bgp_map_afi_safi_int2iana(afi, safi, &pkt_afi,
- &pkt_safi);
- stream_putw(s, pkt_afi);
- stream_putc(s, pkt_safi);
- if (bgp_flag_check(peer->bgp,
- BGP_FLAG_GR_PRESERVE_FWD))
- stream_putc(s, RESTART_F_BIT);
- else
- stream_putc(s, 0);
- }
- }
- }
-
- /* Total Graceful restart capability Len. */
- len = stream_get_endp(s) - rcapp - 1;
- stream_putc_at(s, rcapp, len);
-
- /* Total Capability Len. */
- len = stream_get_endp(s) - capp - 1;
- stream_putc_at(s, capp, len);
+ bgp_peer_send_gr_capability(s, peer, cp);
/* Total Opt Parm Len. */
len = stream_get_endp(s) - cp - 1;
projects / mirror_frr.git / blobdiff