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8606be8779
Restart Router mode.
FRRouting (Restarter):
```
bgp long-lived-graceful-restart stale-time 10
bgp graceful-restart restart-time 1
```
Tested with GoBGP (Helper):
```
long-lived-graceful-restart: advertised and received
Local:
ipv4-unicast, restart time 100000 sec
Remote:
ipv4-unicast, restart time 10 sec, forward flag set
```
Logs:
```
{"Key":"192.168.10.123","Reason":"graceful-restart","State":"BGP_FSM_ESTABLISHED","Topic":"Peer","level":"info","msg":"Peer Down","time":"2021-10-25T17:48:36+03:00"}
{"Key":"192.168.10.123","State":"BGP_FSM_IDLE","Topic":"Peer","level":"warning","msg":"graceful restart timer expired","time":"2021-10-25T17:48:37+03:00"}
{"Family":65537,"Key":"192.168.10.123","Topic":"Peer","level":"info","msg":"start LLGR restart timer (10 sec) for ipv4-unicast","time":"2021-10-25T17:48:37+03:00"}
{"Family":65537,"Key":"192.168.10.123","Topic":"Peer","level":"info","msg":"LLGR restart timer (10 sec) for ipv4-unicast expired","time":"2021-10-25T17:48:47+03:00"}
% ./gobgp global rib
Network Next Hop AS_PATH Age Attrs
S*>10.0.2.0/24 192.168.10.123 174 00:12:08 [{Origin: ?} {Med: 0} {Communities: llgr-stale} {Extcomms: [174:1282304808]}]
```
Helper mode will be added with upcoming PRs.
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
103 lines
3.9 KiB
C
103 lines
3.9 KiB
C
/* BGP open message handling
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* Copyright (C) 1999 Kunihiro Ishiguro
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _QUAGGA_BGP_OPEN_H
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#define _QUAGGA_BGP_OPEN_H
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/* Standard header for capability TLV */
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struct capability_header {
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uint8_t code;
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uint8_t length;
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};
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/* Generic MP capability data */
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struct capability_mp_data {
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uint16_t afi; /* iana_afi_t */
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uint8_t reserved;
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uint8_t safi; /* iana_safi_t */
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};
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struct graceful_restart_af {
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afi_t afi;
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safi_t safi;
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uint8_t flag;
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};
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/* Capability Code */
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#define CAPABILITY_CODE_MP 1 /* Multiprotocol Extensions */
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#define CAPABILITY_CODE_REFRESH 2 /* Route Refresh Capability */
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#define CAPABILITY_CODE_ORF 3 /* Cooperative Route Filtering Capability */
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#define CAPABILITY_CODE_RESTART 64 /* Graceful Restart Capability */
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#define CAPABILITY_CODE_AS4 65 /* 4-octet AS number Capability */
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#define CAPABILITY_CODE_DYNAMIC_OLD 66 /* Dynamic Capability, deprecated since 2003 */
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#define CAPABILITY_CODE_DYNAMIC 67 /* Dynamic Capability */
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#define CAPABILITY_CODE_ADDPATH 69 /* Addpath Capability */
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#define CAPABILITY_CODE_ENHANCED_RR 70 /* Enhanced Route Refresh capability */
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#define CAPABILITY_CODE_LLGR 71 /* Long-lived Graceful Restart */
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#define CAPABILITY_CODE_FQDN 73 /* Advertise hostname capability */
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#define CAPABILITY_CODE_ENHE 5 /* Extended Next Hop Encoding */
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#define CAPABILITY_CODE_REFRESH_OLD 128 /* Route Refresh Capability(cisco) */
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#define CAPABILITY_CODE_ORF_OLD 130 /* Cooperative Route Filtering Capability(cisco) */
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#define CAPABILITY_CODE_EXT_MESSAGE 6 /* Extended Message Support */
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/* Capability Length */
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#define CAPABILITY_CODE_MP_LEN 4
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#define CAPABILITY_CODE_REFRESH_LEN 0
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#define CAPABILITY_CODE_DYNAMIC_LEN 0
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#define CAPABILITY_CODE_RESTART_LEN 2 /* Receiving only case */
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#define CAPABILITY_CODE_AS4_LEN 4
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#define CAPABILITY_CODE_ADDPATH_LEN 4
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#define CAPABILITY_CODE_ENHE_LEN 6 /* NRLI AFI = 2, SAFI = 2, Nexthop AFI = 2 */
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#define CAPABILITY_CODE_MIN_FQDN_LEN 2
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#define CAPABILITY_CODE_ENHANCED_LEN 0
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#define CAPABILITY_CODE_LLGR_LEN 0
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#define CAPABILITY_CODE_ORF_LEN 5
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#define CAPABILITY_CODE_EXT_MESSAGE_LEN 0 /* Extended Message Support */
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/* Cooperative Route Filtering Capability. */
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/* ORF Type */
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#define ORF_TYPE_PREFIX 64
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#define ORF_TYPE_PREFIX_OLD 128
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/* ORF Mode */
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#define ORF_MODE_RECEIVE 1
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#define ORF_MODE_SEND 2
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#define ORF_MODE_BOTH 3
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/* Capability Message Action. */
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#define CAPABILITY_ACTION_SET 0
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#define CAPABILITY_ACTION_UNSET 1
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/* Graceful Restart */
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#define RESTART_R_BIT 0x8000
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#define RESTART_F_BIT 0x80
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/* Long-lived Graceful Restart */
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#define LLGR_F_BIT 0x80
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extern int bgp_open_option_parse(struct peer *, uint8_t, int *);
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extern void bgp_open_capability(struct stream *, struct peer *);
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extern void bgp_capability_vty_out(struct vty *vty, struct peer *peer,
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bool use_json, json_object *json_neigh);
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extern as_t peek_for_as4_capability(struct peer *, uint8_t);
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#endif /* _QUAGGA_BGP_OPEN_H */
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