Commit Graph

1607 Commits

Author SHA1 Message Date
Donatas Abraitis
764402feba bgpd: Fix styling for aggregate_addressv4_cmd
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2022-04-11 17:53:42 +03:00
Donatas Abraitis
cacba915d0 bgpd: Add autocomplete for aggregate-address ... route-map X
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2022-04-11 17:47:52 +03:00
Donatas Abraitis
c0945b7828 bgpd: Allow setting BGP [large]community in route-maps
Before:
```
spine1-debian-11(config-route-map)# bgp community alias 65001:65001 test1
spine1-debian-11(config)# route-map rm permit 10
spine1-debian-11(config-route-map)# set community 65001:65001
% Malformed communities attribute
```

After:
```
spine1-debian-11(config)# bgp community alias 65001:65001 test1
spine1-debian-11(config)# route-map rm permit 10
spine1-debian-11(config-route-map)# set community 65001:65001
spine1-debian-11(config-route-map)#
```

Same for large-communities.

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2022-04-09 17:34:06 +03:00
Xiao Liang
7e7639f548 bgpd: Fix memory leak in subgroup_announce_check
Flush dummy attr to release objects allocated by route-map.

Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
2022-04-02 17:02:35 +08:00
Donatas Abraitis
f70c91dcef bgpd: Add %pBP printfrr() extension to print IP(hostname) for BGP peer
Replace existing bgp_peer_hostname() function.

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2022-03-31 21:20:11 +03:00
Russ White
8084c3325b
Merge pull request #10845 from opensourcerouting/feature/unify_bgp_logging
bgpd: Print hostname along with IP for most useful debug messages
2022-03-29 11:13:29 -04:00
Donald Sharp
a80d833f6b
Merge pull request #10878 from ton31337/fix/bgp_crash_vrf_all_all
bgpd: Fix crash for `show ip bgp vrf all all`
2022-03-28 08:27:19 -04:00
Donatas Abraitis
75ce3b14f3 bgpd: Fix crash for show ip bgp vrf all all neighbors 192.168.0.1 ...
When `all` is specified BGP pointer is always NULL, we need to iterate over
all instances separately.

```
Received signal 11 at 1648199394 (si_addr 0x30, PC 0x562e96597090); aborting...
 /usr/local/lib/libfrr.so.0(zlog_backtrace_sigsafe+0x5e) [0x7f378a57ff6e]
 /usr/local/lib/libfrr.so.0(zlog_signal+0xe6) [0x7f378a580146]
 /usr/local/lib/libfrr.so.0(+0xcd4c2) [0x7f378a5aa4c2]
 /lib/x86_64-linux-gnu/libpthread.so.0(+0x14140) [0x7f378a33e140]
 /usr/lib/frr/bgpd(bgp_afi_safi_peer_exists+0) [0x562e96597090]
 /usr/lib/frr/bgpd(+0x15c3b8) [0x562e9654a3b8]
```

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2022-03-25 11:53:47 +02:00
Donatas Abraitis
fa5ac37865 bgpd: Fix crash for show ip bgp vrf all all
When `all` is specified BGP pointer is always NULL, we need to iterate over
all instances separately.

```
BGP[170822]: Received signal 11 at 1648199394 (si_addr 0x30, PC 0x562e96597090); aborting...
BGP[170822]: /usr/local/lib/libfrr.so.0(zlog_backtrace_sigsafe+0x5e) [0x7f378a57ff6e]
BGP[170822]: /usr/local/lib/libfrr.so.0(zlog_signal+0xe6) [0x7f378a580146]
BGP[170822]: /usr/local/lib/libfrr.so.0(+0xcd4c2) [0x7f378a5aa4c2]
BGP[170822]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x14140) [0x7f378a33e140]
BGP[170822]: /usr/lib/frr/bgpd(bgp_afi_safi_peer_exists+0) [0x562e96597090]
BGP[170822]: /usr/lib/frr/bgpd(+0x15c3b8) [0x562e9654a3b8]
BGP[170822]: /usr/local/lib/libfrr.so.0(+0x75a9e) [0x7f378a552a9e]
BGP[170822]: /usr/local/lib/libfrr.so.0(cmd_execute_command+0x5d) [0x7f378a552e2d]
BGP[170822]: /usr/local/lib/libfrr.so.0(cmd_execute+0xc0) [0x7f378a553070]
BGP[170822]: /usr/local/lib/libfrr.so.0(+0xe3697) [0x7f378a5c0697]
BGP[170822]: /usr/local/lib/libfrr.so.0(+0xe3db1) [0x7f378a5c0db1]
BGP[170822]: /usr/local/lib/libfrr.so.0(+0xe6c30) [0x7f378a5c3c30]
BGP[170822]: /usr/local/lib/libfrr.so.0(thread_call+0x73) [0x7f378a5bb743]
BGP[170822]: /usr/local/lib/libfrr.so.0(frr_run+0xd0) [0x7f378a578750]
BGP[170822]: /usr/lib/frr/bgpd(main+0x344) [0x562e964cf3f4]
BGP[170822]: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea) [0x7f378a18bd0a]
BGP[170822]: /usr/lib/frr/bgpd(_start+0x2a) [0x562e964d10ea]
```

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2022-03-25 11:41:16 +02:00
Donatas Abraitis
a7d91a8c79 bgpd: Print hostname along with IP for most useful debug messages
Examples:

```
%ADJCHANGE: neighbor 192.168.0.1(exit1-debian-11) in vrf default Up
192.168.0.1(exit1-debian-11) graceful restart stalepath timer expired
192.168.0.1(exit1-debian-11) sending route-refresh (BoRR) for IPv4/unicast
192.168.0.1(exit1-debian-11) graceful restart timer started for 120 sec
192.168.0.1(exit1-debian-11) graceful restart stalepath timer started for 120 sec
192.168.0.1(exit1-debian-11) graceful restart timer stopped
%MAXPFXEXCEED: No. of IPv4 Unicast prefix received from 192.168.0.1(exit1-debian-11) 9 exceed, limit 1
```

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
2022-03-22 21:59:58 +02:00
Donald Sharp
7baebfb715
Merge pull request #10447 from ton31337/fix/json_with_whitespaces
*: Fix JSON keys with whitespaces and PascalCase
2022-03-13 18:19:33 -04:00
Donald Sharp
e3015d915b bgpd: Fix continue/break change from old commit
Commit: ea47320b1d

Modified the bgp_clear_stale_route function to have
better indentation, but in the process changed some
`continue;` statements to `break;` which modified
the looping and caused stale paths to not always be
removed upon an update.

To reproduce:  A ---- B, setup with addpath and GR
One side has a prefix with nhop1 and nhop2, kill one
side and then resend the same prefix with nhop3,
paths nhop1 and 2 become stale and never removed.

Code inspection clearly shows that that `continue`
statements became `break` statements causing the
loop over all paths to stop prematurely.

The fix is to change the break back to continue
statements so the loop can continue instead of
stopping.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2022-03-07 11:28:28 -05:00
Rafael Zalamena
5be6fa9bf0 bgpd: fix 'show bgp detail json' output
Include the BGP_SHOW_OPT_DETAIL flag in the 'detail' version of the
command.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
2022-03-03 18:26:03 -03:00
Russ White
d2dfd26697
Merge pull request #10636 from ton31337/fix/use_get_set_for_communities
bgpd: Reuse get/set helpers for attr->community
2022-02-28 09:52:50 -05:00
Ryoga Saito
ea7cd161b2 bgpd: change the treatment for SRv6 routes
This patch adds transpostion_offset and transposition_len to bgp_sid_info,
and transposes SID only at bgp_zebra_announce.

Signed-off-by: Ryoga Saito <ryoga.saito@linecorp.com>
2022-02-25 15:34:28 +00:00
Donatas Abraitis
9a706b42fb bgpd: Reuse get/set helpers for attr->community
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-02-25 10:02:30 +02:00
Donald Sharp
cc9f21da22 *: Change thread->func to return void instead of int
The int return value is never used.  Modify the code
base to just return a void instead.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2022-02-23 19:56:04 -05:00
Igor Ryzhov
474f8e031d
Merge pull request #10585 from ton31337/feature/advmap_set
bgpd: Allow setting attributes over route-maps for conditional advert…
2022-02-23 19:23:03 +03:00
Donatas Abraitis
51c3a7deed bgpd: Allow setting attributes over route-maps for conditional advertisements
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-02-18 11:46:05 +02:00
Donald Sharp
b17826b715 bgp: Add a 15 minute warning to missing policy
Add a 15 minute warning to the logging system when
bgp policy is not setup properly.  Operators keep asking
about the missing policy( on upgrade typically ).  Let's
try to give them a bit more of a hint when something is
going wrong as that they are clearly missing the other
various places FRR tells them about it.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2022-02-15 12:40:38 -05:00
Donatas Abraitis
1bcf3a96de bgpd: Use get/set helpers for attr->lcommunity
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-02-10 11:04:03 +02:00
Donatas Abraitis
584fbadf83
Merge pull request #10550 from idryzhov/bgp-attr-undup
bgpd: remove bgp_attr_undup
2022-02-10 09:02:02 +02:00
Igor Ryzhov
d498917efd bgpd: remove bgp_attr_undup
bgp_attr_undup does the same thing as bgp_attr_flush – frees the
temporary data that might be allocated when applying a route-map. There
is no need to have two separate functions for that.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2022-02-10 01:43:37 +03:00
Igor Ryzhov
afb254d792 bgpd: fix aspath memory leak in aggr_suppress_map_test
aspth_empty a couple of lines earlier creates an aspath and it must be
freed.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2022-02-10 01:20:03 +03:00
Igor Ryzhov
4dbf2038ea bgpd: fix missing bgp_attr_flush on errors in bgp_update
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2022-02-10 01:15:57 +03:00
Donald Sharp
518223c161
Merge pull request #10496 from ton31337/fix/move_struct_ecommunity_to_extra
bgpd: Use bgp_attr_[sg]et_ecommunity for struct ecommunity
2022-02-08 14:12:15 -05:00
Donatas Abraitis
024945804a bgpd: Print route-map name for filtred outgoing prefixes
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-02-07 12:04:10 +02:00
Donatas Abraitis
686826e90e bgpd: Flush temporary attributes after route-map apply
Fixes crash:

```
Received signal 6 at 1644222173 (si_addr 0x6f000012d2, PC 0x7f79274cbfb7); aborting...
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0(zlog_backtrace_sigsafe+0x6d) [0x7f79282e079d]
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0(zlog_signal+0xf3) [0x7f79282e0993]
/usr/lib/x86_64-linux-gnu/frr/libfrr.so.0(+0xbd881) [0x7f792830b881]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x12980) [0x7f7927890980]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7) [0x7f79274cbfb7]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x141) [0x7f79274cd921]
/lib/x86_64-linux-gnu/libc.so.6(+0x89967) [0x7f7927516967]
/lib/x86_64-linux-gnu/libc.so.6(+0x909da) [0x7f792751d9da]
/lib/x86_64-linux-gnu/libc.so.6(cfree+0x620) [0x7f7927525050]
/usr/lib/frr/bgpd(+0x1e7c1c) [0x55b5c53b1c1c]
/usr/lib/frr/bgpd(aspath_free+0x28) [0x55b5c53b1c78]
/usr/lib/frr/bgpd(bgp_attr_flush+0x245) [0x55b5c52abc15]
/usr/lib/frr/bgpd(subgroup_announce_check+0x1137) [0x55b5c530c5d7]
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-02-07 10:50:33 +02:00
Donald Sharp
cd44428d62 bgpd: Prevent use after variable goes out of scope
`struct prefix p` was declared inside an if statement
where we assign the address of to a pointer that is
then passed to a sub function.  This will eventually
leave us in a bad state.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2022-02-04 10:29:38 -05:00
Donatas Abraitis
b53e67a389 bgpd: Use bgp_attr_[sg]et_ecommunity for struct ecommunity
This is an extra work before moving attr->ecommunity to attra_extra struct.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-02-04 15:56:20 +02:00
Donatas Abraitis
77a2f8e592 *: Add camelCase JSON keys in addition to PascalCase
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-02-03 10:48:06 +02:00
Igor Ryzhov
3b216639d7
Merge pull request #10430 from ton31337/fix/addpath_maximum-prefix-out
bgpd: Add bgp_check_selected() helper and just consistency changes
2022-02-01 18:38:57 +03:00
Donatas Abraitis
be92fc9f1a bgpd: Convert bgp_addpath_encode_[tr]x() to bool from int
Rename addpath_encode[d] to addpath_capable to be consistent.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-02-01 13:31:16 +02:00
Igor Ryzhov
515ae0c090
Merge pull request #10442 from ton31337/fix/reuse_bgp_path_info_extra_get
bgpd: Reuse bgp_path_info_extra_get() for allocating new bgp path info
2022-02-01 12:19:23 +03:00
Donatas Abraitis
3757f96485 bgpd,pimd,isisd,nhrpd: Convert to vty_json()
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-01-31 21:20:41 +02:00
Donatas Abraitis
53d3a0a80d bgpd: Reuse bgp_path_info_extra_get() for allocating new bgp path info
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-01-28 21:11:12 +02:00
Donatas Abraitis
9d56cc8750
Merge pull request #10159 from taspelund/retain-peer-asn
bgpd: retain peer asn even with remove-private-AS
2022-01-28 09:22:06 +02:00
Donatas Abraitis
6766acddbf
Merge pull request #9880 from louis-oui/maximum-prefix-out
bgpd: fixes maximum prefix out
2022-01-27 08:49:31 +02:00
Trey Aspelund
179d5a0e26 bgpd: retain peer asn even with remove-private-AS
In situations where remove-private-AS is configured for eBGP peers
residing in a private ASN, the peer's ASN was not being retained
in the AS-Path which can allow loops to occur. This was addressed
in a prior commit but it only addressed cases where the "replace-AS"
keyword was configured.
This commit ensures we retain the peer's ASN when using
"remove-private-AS" for eBGP peers in a private ASN regardless of other
keywords.

Setup:
=========
router bgp 4200000002
 neighbor enp1s0 interface v6only remote-as external
 neighbor enp6s0 interface v6only remote-as external
 !
 address-family ipv4 unicast
  neighbor enp6s0 remove-private-AS
 exit-address-family

ub18# show ip bgp sum | include 420000
BGP router identifier 100.64.0.111, local AS number 4200000002 vrf-id 0    <<<<< local asn 4200000002
ub20(enp1s0)    4 4200000001        22        22        0    0    0 00:00:57            1        1
ub20(enp6s0)    4 4200000001        21        22        0    0    0 00:00:57            0        1   <<<< peer asn 4200000001

ub18# show ip bgp | include 0.2
Default local pref 100, local AS 4200000002
*> 100.64.0.2/32    enp1s0                   0             0 4200000001 4200000004 4200000005 4200000001 i

Before ("remote-private-AS" only):
=========
ub18# show ip bgp neighbors enp6s0 advertised-routes | include 100.64.0.2
*> 100.64.0.2/32    ::                                     0 i     <<<<<  empty as-path, no way to prevent loop

After ("remote-private-AS" only):
=========
ub18# show ip bgp neighbors enp6s0 advertised-routes | include 100.64.0.2
*> 100.64.0.2/32    ::                                     0 4200000001 4200000001 i    <<<< retain peer's asn, breaks loop

Ticket: 2857047
Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
2022-01-24 20:06:50 +00:00
Russ White
6ab0d40e87
Merge pull request #10380 from ton31337/feature/show_graceful_restart_timer_per_prefix
bgpd: Show Graceful Restart seconds remaining per prefix
2022-01-24 07:51:19 -05:00
Louis Scalbert
d0bf49ecd5 bgpd: apply maximum-prefix-out without clearing the neighbor
Abstract:
- The command "neighbor PEER maximum-prefix-out NUMBER" cannot be applied
  without clearing the BGP neighbor.
- Apply the maximum-prefix-out value as soon as it is modified without
  clearing the neighbor.

subgroup_update_packet() and subgroup_withdraw_packet() respectively
manages the announcement and withdrawal BGP message to the peer.
subgrp->scount counter counts the number of sent prefixes.

Before the patch, the maximum out prefix limitation was applied in
subgroup_update_packet() in order that subgrp->scount never exceeds the
limit. Setting a limit inferior to the effective number of sent prefix
did not result in sending any withdrawal message to reduce the number of
sent prefixes. Without clearing the BGP neighbor, the limitation only
applied to the announcement of new prefixes when the limitation was
over.

With the patch, the limitation is checked in subgroup_announce_check().
The function is intended to say whether a prefix has to be announced in
regards to the prefix-list, route-map... Now when a maximum-prefix-out
value is changed/removed, the neighbor AFI/SAFI table is re-parsed in
the same way as for the application of route-map, prefix-lists...

Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
2022-01-20 18:19:37 +01:00
Igor Ryzhov
860e740b36 bgpd: replace custom union gw_addr with struct ipaddr
BGP EVPN custom `union gw_addr` is basically the same thing as a common
`struct ipaddr` but it lacks the address family which is needed in some
cases.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2022-01-19 23:13:04 +03:00
Igor Ryzhov
b04c1e9997 bgpd: fix populating the attribute
This code is populating a temporary variable `add` instead of the attr.
Initially this variable was later copied to the attr but the copying was
erroneously deleted by 0a50c2481. Directly populate the attr to restore
the correct behavior.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2022-01-19 23:02:11 +03:00
Igor Ryzhov
8f2661b01d bgpd: remove wrong overlay index comparison
Here we try to compare the new attr with the existing one but this call
compares the existing index with zero instead. attrhash_cmp already
compares indexes using overlay_index_same so this call is both wrong and
useless.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2022-01-19 22:55:44 +03:00
Donatas Abraitis
d92646a4b7 bgpd: Add an empty line after new variable assignment
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-01-19 19:14:40 +02:00
Donatas Abraitis
848e8cf6c6 bgpd: Show Graceful Restart seconds remaining per prefix
```
exit1-debian-11# sh ip bgp 10.10.10.10/32
BGP routing table entry for 10.10.10.10/32, version 14
Paths: (1 available, best #1, table default)
  Not advertised to any peer
  65000, (stale)
    192.168.0.2 from 192.168.0.2 (0.0.0.0)
      Origin incomplete, metric 0, valid, external, best (First path received)
      Last update: Wed Jan 19 17:13:51 2022
      Time until Graceful Restart stale route deleted: 117
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-01-19 19:14:19 +02:00
Trey Aspelund
c1984955b7 bgpd: fix advertisedRoutes json key
'show bgp ... neighbor [routes|received-routes]' both incorrectly
used a json key of 'advertisedRoutes'.
This corrects the key to be 'receivedRoutes' for commands where
the displayed routes were received, not advertised.

before:
unet> r3 show ip bgp neigh 10.2.30.2 received-routes json | include Routes
  "advertisedRoutes":{

after:
ub18# show ip bgp neighbors enp1s0 received-routes json | include Routes
  "receivedRoutes":{
ub18# show ip bgp neighbors enp1s0 advertised-routes json | include Routes
  "advertisedRoutes":{

Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
2022-01-14 22:03:11 +00:00
Donatas Abraitis
48ebba0476 bgpd: Show Long-lived Graceful Restart timer remaining per prefix
```
exit1-debian-11# sh ip bgp 100.100.100.100/32
BGP routing table entry for 100.100.100.100/32, version 7
Paths: (2 available, best #2, table default)
  Advertised to non peer-group peers:
  home-spine1.donatas.net(192.168.0.2)
  65002, (stale)
    192.168.10.17 from donatas-pc(192.168.10.17) (0.0.0.0)
      Origin incomplete, valid, external
      Community: llgr-stale
      Last update: Thu Jan 13 08:58:08 2022
      Time until Long-lived stale route deleted: 18
  65001
    192.168.0.2 from home-spine1.donatas.net(192.168.0.2) (2.2.2.2)
      Origin incomplete, metric 0, valid, external, best (First path received)
      Last update: Thu Jan 13 08:57:56 2022
```

```
~# vtysh -c 'show ip bgp 100.100.100.100/32 json' | jq '."paths"[] | ."llgrSecondsRemaining"'
17
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-01-13 12:19:32 +02:00
Donatas Abraitis
8ac66010c5 bgpd: Avoid additional check for json output under show ip bgp route
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-01-13 10:34:04 +02:00
Donatas Abraitis
83fc30745d
Merge pull request #10266 from opensourcerouting/bgp-aggr-rm
bgpd: fix aggregate route unsuppression bug
2022-01-12 23:18:58 +02:00
Donald Sharp
52979c3baa bgpd: Remove unneeded loop over all peers
The bgp_notify_conditional_adv_scanner function was/is looping
over all peers.  And only matching on the passed in peer,
based upon the subgroup.  As such we do not need to loop
over everything and just cut-to-the chase and just modify
the peer structure.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2022-01-12 09:53:15 -05:00
Rafael Zalamena
92b175bd40 bgpd: fix aggregate route unsuppression bug
Unsuppress route part of the aggregation when route-map configuration
is removed before the aggregation itself.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
2022-01-11 13:44:54 -03:00
Kantesh Mundaragi
641065d4fc bgpd: VRF-Lite fix to clear stale leaked routes
Description:
Change is intended for fixing the issue related to
clearing of stale leaked routes:
- Whenever BGP goes down,
  after bringing down tcp connection and renegotiating capabilities,
  once we reestablish connection,
  we are not handling clear of VRF leaked route in the bgp_clear_stale_route.

- While bgp is clearing stale routes,
  we need to handle withdraw of routes for VRF route-leaking.

Co-authored-by: Kantesh Mundaragi <kmundaragi@vmware.com>
Signed-off-by: Iqra Siddiqui <imujeebsiddi@vmware.com>
2022-01-08 10:21:10 -08:00
Donatas Abraitis
a30fec23f8 bgpd: Increase maximum supress threshold for dampening to 50,000
rfc7196 recommends:

In addition, BGP implementations have an internal constant, which we
   will call the 'maximum penalty', and the current computed penalty may
   not exceed it.

Router Maximum Penalty:  The internal constant for the maximum
      penalty value MUST be raised to at least 50,000.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2022-01-06 10:09:05 +02:00
Donatas Abraitis
1479ed2fb3 bgpd: Implement LLGR helper mode
Tested between GoBGP and FRR (this commit).

```
┌───────────┐             ┌────────────┐
│           │             │            │
│ GoBGPD    │             │ FRRouting  │
│ (restart) │             │            │
│           │             │            │
└──────┬────┘             └───────┬────┘
       │                          │
       │                          │
       │                          │
       │     ┌───────────┐        │
       │     │           │        │
       │     │           │        │
       └─────┤ FRRouting ├────────┘
             │ (helper)  │
             │           │
             └───────────┘

// GoBGPD
% cat /etc/gobgp/config.toml
[global.config]
    as = 65002
    router-id = "2.2.2.2"
    port = 179

[[neighbors]]
    [neighbors.config]
        peer-as = 65001
        neighbor-address = "2a02🔤:123"
    [neighbors.graceful-restart.config]
        enabled = true
        restart-time = 3
        long-lived-enabled = true
    [[neighbors.afi-safis]]
        [neighbors.afi-safis.config]
            afi-safi-name = "ipv6-unicast"
        [neighbors.afi-safis.mp-graceful-restart.config]
            enabled = true
        [neighbors.afi-safis.long-lived-graceful-restart.config]
            enabled = true
            restart-time = 10
    [[neighbors.afi-safis]]
        [neighbors.afi-safis.config]
            afi-safi-name = "ipv4-unicast"
        [neighbors.afi-safis.mp-graceful-restart.config]
            enabled = true
        [neighbors.afi-safis.long-lived-graceful-restart.config]
            enabled = true
            restart-time = 20

% ./gobgp global rib add -a ipv6 2001:db8:4::/64
% ./gobgp global rib add -a ipv6 2001:db8:5::/64 community 65535:7
% ./gobgp global rib add -a ipv4 100.100.100.100/32
% ./gobgp global rib add -a ipv4 100.100.100.200/32 community 65535:7
```

1. When killing GoBGPD, graceful restart timer starts in FRR helper router;
2. When GR timer expires in helper router:
   a) LLGR_STALE community is attached to routes to be retained;
   b) Clear stale routes that have NO_LLGR community attached;
   c) Start LLGR timer per AFI/SAFI;
   d) Recompute bestpath and reannounce routes to peers;
   d) When LLGR timer expires, clear all routes on particular AFI/SAFI.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-12-28 16:07:59 +02:00
Donatas Abraitis
f5827f3689 bgpd: Drop if 0 blocks
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-12-23 14:41:11 +02:00
Donald Sharp
be785e356a bgpd, tests: Add code to handle failed installations
Currently the Wait for Install code ( bgp_suppress_fib ) does
not properly handle two states from zebra:  ROUTE_INSTALL_FAILED
and BETTER_ADMIN_DISTANCE_WON.  Pre this change the WFI code
would just never notify our peers about a route install failure
but more is needed.  In the ROUTE_INSTALL_FAILED and the
BETTER_ADMIN_DISTANCE_WON we need to notify our peers with
a withdrawal about the route, else we will continue to
draw traffic to us when we cannot legally do so.

Why is this needed?  In either case imagine that we've already
received a bgp route, installed it and sent to our peers.
In the Better admin distance won case, say a static route is installed
at this point in time we must stop advertising the route through
us since we are not installed.  As such a withdrawal must be sent.

In the ROUTE_INSTALL_FAILED case, the code was not properly handling
the situation where we have Route A, it was successfully installed
and then we received a update to Route A that was attempted to be
installed but failed.  In this case we also need to send a withdrawal

Finally update the bgp_suppress_fib topotest to test both of these
situations.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-12-17 13:28:56 -05:00
Mark Stapp
907707db48 bgpd: clearer safi handling for BGP-LU route updates
Don't hide the LABELED_UNICAST safi when processing route
updates; map it where necessary (to use the UNICAST table
for instance).

Signed-off-by: Mark Stapp <mstapp@nvidia.com>
2021-12-01 07:56:38 -05:00
Russ White
f1f6716d4a
Merge pull request #9610 from iqras23/best_path
bgpd: VRF-Lite fix best path selection
2021-11-30 16:14:34 -05:00
Igor Ryzhov
cb3fa0a612
Merge pull request #10124 from ton31337/feature/vty_json 2021-11-29 02:11:29 +03:00
Russ White
d41e9fe0cb
Merge pull request #9203 from opensourcerouting/bgpd-show-json
bgpd: add "json" option to a few more show commands
2021-11-27 08:30:04 -05:00
Donatas Abraitis
75eeda9323 bgpd: Convert vty_out to vty_json for JSON
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-11-25 17:51:12 +02:00
Donatas Abraitis
746a6eda2f *: Remove unused variables
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-11-25 17:35:55 +02:00
Donatas Abraitis
67d7e256a3 bgpd: Replace prefix2str for JSON to %pFX
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-11-25 17:34:17 +02:00
Renato Westphal
fe0f234d13 bgpd: add "json" option to "show ip bgp ... dampening parameters"
Also:
* rename show_ip_bgp_cmd to show_ip_bgp_dampening_params_cmd;
* rename show_ip_bgp_json_cmd to show_ip_bgp_cmd.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
2021-11-23 15:14:08 -03:00
Renato Westphal
39c3c7364d bgpd: add "json" option to "show ip bgp ... longer-prefixes"
Move the "longer-prefixes" option from show_ip_bgp_cmd to
show_ip_bgp_json_cmd so that is has access to JSON output.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
2021-11-23 15:14:08 -03:00
Renato Westphal
bf1a944ace bgpd: add "json" option to "show ip bgp ... route-map"
Move the "route-map" option from show_ip_bgp_cmd to
show_ip_bgp_json_cmd so that is has access to JSON output.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
2021-11-23 15:14:08 -03:00
Renato Westphal
a71293475b bgpd: add "json" option to "show ip bgp ... filter-list"
Move the "filter-list" option from show_ip_bgp_cmd to
show_ip_bgp_json_cmd so that is has access to JSON output.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
2021-11-23 15:14:08 -03:00
Renato Westphal
6deaf5794d bgpd: add "json" option to "show ip bgp ... prefix-list"
Move the "prefix-list" option from show_ip_bgp_cmd to
show_ip_bgp_json_cmd so that is has access to JSON output.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
2021-11-23 15:14:08 -03:00
Renato Westphal
707999834a bgpd: add "json" option to "show ip bgp ... community-list"
Move the "community-list" option from show_ip_bgp_cmd to
show_ip_bgp_json_cmd so that is has access to JSON output.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
2021-11-23 14:36:58 -03:00
Renato Westphal
2391833ecf bgpd: use void pointer to reduce code duplication
There's no need to have different calls to bgp_show() when the only
difference is one argument that corresponds to a "void *" parameter.

Code duplication should be reduced to a minimum to avoid bugs like
the one fixed in the previous commit.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
2021-11-23 14:27:25 -03:00
Renato Westphal
db58b09fea bgpd: fix crash in "show ip bgp ... all alias ALIAS"
Like done in the other places (when "all" isn't used), pass the
actual alias name to bgp_show() instead of a null pointer.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
2021-11-23 14:27:25 -03:00
Donald Sharp
d32c92a4c0
Merge pull request #10057 from ton31337/fix/we_shouldn_send_LLA_for_RS
bgpd: Do not send LLA for route-server-client peers
2021-11-22 12:06:36 -05:00
Kantesh Mundaragi
da0c0ef70c bgpd: VRF-Lite fix best path selection
Description:
Incorrect behavior during best path selection for the imported routes.
Imported routes are always treated as eBGP routes.

Change is intended for fixing the issues related to
bgp best path selection for leaked routes:
- FRR does ecmp for the imported routes,
  even without any ecmp related config.
  If the same prefix is imported from two different VRFs,
  then we configure the route with ecmp even without
  any ecmp related config.
- Locally imported routes are preferred over imported
  eBGP routes.
  If there is a local route and eBGP learned route
  for the same prefix, if we import both the routes,
  imported local route is selected as best path.
- Same route is imported from multiple tenant VRFs,
  both imported routes point to the same VRF in nexthop.
- When the same route with same nexthop in two different VRFs
  is imported from those two VRFs, route is not installed as ecmp,
  even though we had ecmp config.

- During best path selection, while comparing the paths for imported routes,
  we should correctly refer to the original route i.e. the ultimate path.
- When the same route is imported from multiple VRF,
  use the correct VRF while installing in the FIB.
- When same route is imported from two different tenant VRFs,
  while comparing bgp path info as part of bgp best path selection,
  we should ideally also compare corresponding VRFs.

See-also: https://github.com/FRRouting/frr/files/7169555/FRR.and.Cisco.VRF-Lite.Behaviour.pdf

Co-authored-by: Santosh P K <sapk@vmware.com>
Co-authored-by: Kantesh Mundaragi <kmundaragi@vmware.com>
Signed-off-by: Iqra Siddiqui <imujeebsiddi@vmware.com>
2021-11-19 07:33:22 +05:30
Donatas Abraitis
4e9a98636f *: Remove unused variables
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-11-18 18:45:41 +02:00
Donatas Abraitis
c949c77101 bgpd: Replace inet_ntop to %pI4/6 for JSON outputs
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-11-18 11:35:29 +02:00
David Lamparter
de48804c01
Merge pull request #10046 from donaldsharp/bgp_instance_del 2021-11-15 10:49:31 +01:00
Donatas Abraitis
2d02e34eab bgpd: Do not send LLA for route-server-client peers
We should send only 16bytes next hop, no need for 32bytes, third party
next hops kinda for LLA does not work here.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-11-15 08:51:26 +02:00
Donald Sharp
4378495a27 bgpd: Add vrf information to best path debugging
When debugging issues for routes in multiple vrf's.  It would
be extremely useful if the debug output had which vrf we
are acting on.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-11-12 13:24:04 -05:00
Donald Sharp
e36f61b507 *: Rename quagga_timestamp with frr_timestamp
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-11-11 14:41:27 -05:00
Donatas Abraitis
37b6787730
Merge pull request #9700 from mjstapp/add_json_det_attrs
bgpd: Add 'show bgp <afi> <safi> json detail' header data
2021-11-10 16:42:30 +02:00
Donatas Abraitis
458c1475ab bgpd: Set afi by default to AFI_IP6 for show bgp vrf/view detail
AFI/SAFI is handled in bgp_vty_find_and_parse_afi_safi_bgp() properly for
IPv4, but not for IPv6. Let's have it enabled for IPv6 by default.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-11-06 15:54:20 +02:00
Donatas Abraitis
54d05dea57 bgpd: Set afi by default to AFI_IP6 for show bgp vrf/view all
AFI/SAFI is handled in bgp_vty_find_and_parse_afi_safi_bgp() properly for
IPv4, but not for IPv6. Let's have it enabled for IPv6 by default.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-11-06 15:50:56 +02:00
Igor Ryzhov
12bc8a4068
Merge pull request #9791 from opensourcerouting/bgp-json-mem-fix
bgpd: Fix json object memory leaks and double-free
2021-10-26 18:06:47 +03:00
Donald Sharp
d9654571f9
Merge pull request #9316 from ton31337/fix/send_best_path_reason_for_zebra
bgpd: Send BGP best path reason to Zebra
2021-10-25 11:09:20 -04:00
Russ White
61a7ec774c
Merge pull request #9783 from mjstapp/fix_bgp_lu_lsp
bgpd, tests: BGP-labeled-unicast advertise implicit-null in more cases
2021-10-20 18:22:01 -04:00
Donatas Abraitis
de71d43e04 bgpd: Add autocomplete for filter-list
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-10-19 18:03:54 +03:00
Donatas Abraitis
1d7260a1b5 bgpd: Send BGP best path reason to Zebra
```
exit1-debian-9# show ip route 172.16.16.1/32
Routing entry for 172.16.16.1/32
  Known via "bgp", distance 20, metric 0, best
  Last update 00:00:28 ago
  * 192.168.0.2, via eth1, weight 1
    AS-Path          : 65003
    Communities      : first 65001:2 65001:3
    Large-Communities: 65001:1:1 65001:1:2 65001:1:3
    Selection reason : First path received
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-10-14 16:52:47 +03:00
Rafael Zalamena
21e33c958d bgpd: remove bogus check
`bgp` pointer always exists and is used before this function call.

Calling `free` in `json` in this context will also cause a
use-after-free crash.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
2021-10-11 18:29:54 -03:00
Martin Winter
690c3134a4 bgpd: fix json object handling
Fix memory leaks when quitting early and double free when headers are
not set.

Signed-off-by: Martin Winter <mwinter@opensourcerouting.org>
2021-10-11 18:28:09 -03:00
Donatas Abraitis
126f9ac563
Merge pull request #9693 from donaldsharp/bgp_address_removal
bgpd: When removing v6 address being used as a nexthop ensure peer is…
2021-10-08 17:41:59 +03:00
Mark Stapp
bb2ca6927f bgpd: BGP-LU use implicit-null in some cases
In some cases where bgp is at the mpls edge, where it has a BGP-LU
peer downstream but an IP peer upstream, it can advertise the
IMPLICIT_NULL label instead of a per-prefix label.

Signed-off-by: Mark Stapp <mstapp@nvidia.com>
2021-10-08 09:11:51 -04:00
Igor Ryzhov
d3120452c4 bgpd: add missing vrf/view parameter to one command
"show bgp neighbors PEER received prefix-filter" misses the argument.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-10-07 18:29:22 +03:00
Donald Sharp
e1a32ec1c5 bgpd: bgp_announce_route should know if we should force the update or not
When calling bgp_announce_route allow it to properly set the flag
to force an update to go out or not.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-10-04 07:59:18 -04:00
Mark Stapp
2aad8c4289 bgpd: add 'header' info to show bgp afi safi json detail
The '... json detail' output is missing some data that's shown
via the 'route_vty_out_detail_header' function. Integrate the
json version of that function in the 'json detail' path.

Signed-off-by: Mark Stapp <mstapp@nvidia.com>
2021-10-01 08:06:35 -04:00
Mark Stapp
edfee30d64 bgpd: add some const
Add const to a couple of arguments in bgp_label utilities,
and in a show function.

Signed-off-by: Mark Stapp <mstapp@nvidia.com>
2021-10-01 07:48:45 -04:00
Philippe Guibert
700ddfed69 bgpd: add carriage return when dumping tags from all evpn rds
following command: show bgp l2vpn evpn rd all tags
does not append rd contexts one after the other

before:
dut-vm# show bgp l2vpn evpn rd all tags
   Network          Next Hop      In tag/Out tag
Route Distinguisher: 65000:999
*> [5]:[0]:[24]:[10.40.1.0]
                    10.209.36.1     Route Distinguisher: 65000:1000
*> [5]:[0]:[24]:[10.40.1.0]
                    10.209.36.1
Displayed 2 out of 2 total prefixes

after:
dut-vm# show bgp l2vpn evpn rd all tags
   Network          Next Hop      In tag/Out tag
Route Distinguisher: 65000:999
*> [5]:[0]:[24]:[10.40.1.0]
                    10.209.36.1
Route Distinguisher: 65000:1000
*> [5]:[0]:[24]:[10.40.1.0]
                    10.209.36.1

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
2021-09-22 10:01:06 +02:00
Donatas Abraitis
d24f4b7d84
Merge pull request #9645 from mjstapp/fix_show_bgp_lu
bgpd: make show bgp labeled-unicast work
2021-09-22 09:52:09 +03:00
Russ White
2075387e77
Merge pull request #9546 from proelbtn/add-support-for-perfix-sid-type-5
Add support for Prefix-SID (Type 5)
2021-09-21 11:36:53 -04:00
Mark Stapp
cd8c2a27c1 bgpd: make show bgp labeled-unicast work
Yet-another path where the safi needs to be changed to locate
the unicast table where LU routes live.

Signed-off-by: Mark Stapp <mstapp@nvidia.com>
2021-09-21 11:21:36 -04:00
Igor Ryzhov
ee522f5729 bgpd: fix memory leaks when using route-maps
There are places where we use route-maps using duplicated attributes and
neither intern nor flush them after the usage. If a route-map has set
rules for aspath/communities, they will be allocated and never freed.
We should always flush unneeded duplicated attributes.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-09-15 22:45:23 +03:00
Ryoga Saito
16f3db2d8c bgpd: add sid struct info to bgp_path_info_extra
add SID structure information to bgp_path_info_extra to use structure
data in other places.

Signed-off-by: Ryoga Saito <contact@proelbtn.com>
2021-09-14 16:54:31 +00:00
Sri Mohana Singamsetty
2a8ded2b97
Merge pull request #9381 from AnuradhaKaruppiah/evpn-mh-display
bgpd: remove es_path VNI display from type-2 routes
2021-09-14 09:39:13 -07:00
Anuradha Karuppiah
12d67b65bb bgpd: remove es_path VNI display from type-2 routes
EVPN paths are maintained in per-ES list for efficient updates
(es→macip_global_path_list, es→macip_evi_path_list). VNI is also maintained
in path_extra for easy lookups. This (path_extra) VNI (which is always 0 for
global paths) was being displayed against the path and was mis-interpreted
as the BD.

To avoid that confusion I have removed the display.

Ticket: #2732605

Signed-off-by: Anuradha Karuppiah <anuradhak@nvidia.com>
2021-09-10 11:35:50 -07:00
Kantesh Mundaragi
0789eb69e5 bgpd: VRF-Lite fix nexthop type
Description:
Change is intended for fixing the following issues related to vrf route leaking:

Routes with special nexthops i.e. blackhole/sink routes when imported,
are not programmed into the FIB and corresponding nexthop is set as 'inactive',
nexthop interface as 'unknown'.

While importing/leaking routes between VRFs, in case of special nexthop(ipv4/ipv6)
once bgp announces route(s) to zebra, nexthop type is incorrectly set as
NEXTHOP_TYPE_IPV6_IFINDEX/NEXTHOP_TYPE_IFINDEX
i.e. directly connected even though we are not able to resolve through an interface.
This leads to nexthop_active_check marking nexthop !NEXTHOP_FLAG_ACTIVE.
Unable to find the active nexthop(s), route is not programmed into the FIB.

Whenever BGP leaks routes, set the correct nexthop type, so that route gets resolved
and correctly programmed into the FIB, in the imported vrf.

Co-authored-by: Kantesh Mundaragi <kmundaragi@vmware.com>
Signed-off-by: Iqra Siddiqui <imujeebsiddi@vmware.com>
2021-09-07 01:50:06 -07:00
Ryoga Saito
cc8f05dfdc bgpd: add transpose operation
if advertisement with SID structure Sub-Sub-TLV, we need to transpose
SID, so added transpose operation into bgp_update.

Signed-off-by: Ryoga Saito <contact@proelbtn.com>
2021-09-03 01:19:49 +00:00
Donatas Abraitis
27aa23a43b bgpd: Add neighbor PEER link-bw-encoding-ieee
This is to avoid breaking changes between existing deployments of
extended community for bandwidth encoding. By default FRR uses uint32
to encode bandwidth, which is not as the draft requires (IEEE floating-point).

This switch enables the required encoding per-peer.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-08-30 14:21:49 +03:00
Donatas Abraitis
3af20fda0b
Merge pull request #9369 from idryzhov/comm-alias-memleaks
bgpd: fix various memleaks when using community aliases
2021-08-16 17:24:21 +03:00
Igor Ryzhov
cd9cc0e64a bgpd: fix memory leaks in bgp_show_table
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-08-13 14:45:08 +03:00
Donatas Abraitis
77a3a95eaa bgpd: Auto-complete for show bgp <afi> <safi> large-community-list
```
exit1-debian-9# show ip bgp large-community-list
  (1-500)               large-community-list number
  LCOMMUNITY_LIST_NAME  large-community-list name
     large-testas
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-08-10 11:06:22 +03:00
Donatas Abraitis
96870ecb05 bgpd: Auto-complete for show bgp <afi> <safi> community-list
```
exit1-debian-9# show ip bgp community-list ?
  (1-500)              community-list number
  COMMUNITY_LIST_NAME  community-list name
     testas
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-08-10 11:06:12 +03:00
Donatas Abraitis
d04e7788c1
Merge pull request #9324 from donaldsharp/bgp_info_cmp
bgpd: Store distance received from a redistribute statement
2021-08-09 10:36:43 +03:00
Donald Sharp
957f74c302 bgpd: Store distance received from a redistribute statement
When bgp receives the admin distance from a redistribution statement
let's store that distance for later usage.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-08-07 20:27:45 -04:00
Donald Sharp
883da9f5ec
Merge pull request #9256 from idryzhov/dampening-revert
BGP per-peer dampening revert
2021-08-06 10:46:09 -04:00
Donald Sharp
2f958e5562
Merge pull request #9280 from idryzhov/bgp-nb-revert-master
BGP NB revert
2021-08-06 10:45:59 -04:00
Igor Ryzhov
585f1adc4f Revert "bgpd: convert addr-family clis to transactional clis"
This reverts commit 37a87b8f98.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-08-03 23:36:30 +03:00
Igor Ryzhov
ba0b0df767 Revert "bgpd: add match-med nb support in aggregate cmd"
This reverts commit fa423774ff.
2021-08-03 23:36:05 +03:00
Igor Ryzhov
1bf062e1b4 Revert "bgpd: add nb support for suppress-map in aggregate cmd"
This reverts commit 90e21f3535.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-08-03 23:35:40 +03:00
Igor Ryzhov
b4f7f45b94 Revert "bgpd: peer / peer group dampening profiles"
This reverts commit 40ec3340be.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-08-03 21:54:47 +03:00
Igor Ryzhov
003cae8534 Revert "bgpd: clear ip bgp dampening was not triggering the route calculation for the prefix"
This reverts commit c8ddbd4804.
2021-08-03 21:54:47 +03:00
Igor Ryzhov
814f07b2e7 Revert "bgpd: Drop double-pointer for bgp_damp_info_free()"
This reverts commit 19971c9a92.
2021-08-03 21:54:47 +03:00
Igor Ryzhov
5c8846f6e8 Revert "bgpd: cleanup bgp_damp_info_free"
This reverts commit 97766ac8aa.
2021-08-03 21:54:47 +03:00
Igor Ryzhov
2dcaf18149 Revert "bgpd: fix missing damp info free when cleaning bgp path"
This reverts commit 4538f89552.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-08-03 21:54:47 +03:00
vivek
9146341f06 bgpd: Handle quick flaps of an EVPN prefix properly
When an EVPN prefix flaps too quickly such that the new advertisement
is received prior to the full processing of the prior withdraw, we may
get into a state where the route doesn't get imported properly into
MAC or IP VRFs. Ensure that we do the route import in such cases.

Suggested-by: Sri Mohana Singamsetty <msingamsetty@vmware.com>
Suggested-by: Ameya Dharkar <adharkar@vmware.com>
Signed-off-by: Vivek Venkatraman <vivek@nvidia.com>
2021-08-02 22:06:28 -07:00
Igor Ryzhov
4538f89552 bgpd: fix missing damp info free when cleaning bgp path
Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-07-30 00:59:19 +03:00
Igor Ryzhov
97766ac8aa bgpd: cleanup bgp_damp_info_free
bgp_damp_config, afi and safi are never used.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-07-30 00:59:19 +03:00
Donatas Abraitis
19971c9a92 bgpd: Drop double-pointer for bgp_damp_info_free()
This causes a crash using `clear ip bgp dampening <prefix>`.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-07-29 11:31:42 +03:00
Donatas Abraitis
35a45e8070 bgpd: Use strcmp comparing BGP alias with an actual entered alias
It might be a case when a partial match is hit and this needs to be fixed.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-07-23 15:14:54 +03:00
Donatas Abraitis
90737805d9
Merge pull request #8956 from pguibert6WIND/bgp_loop_through_itself
bgpd: prevent routes loop through itself
2021-07-21 09:28:21 +03:00
Donald Sharp
fb8e437bcd
Merge pull request #9080 from ton31337/fix/reason_bgpd
bgpd: Drop unnecessary chars for filtered reason
2021-07-18 15:33:19 -04:00
Donatas Abraitis
396a82ec2e
Merge pull request #9075 from donaldsharp/alias_auto_completion
bgpd: Allow for auto-completion of community alias's created
2021-07-18 20:30:41 +03:00
Donatas Abraitis
692174a1c5 bgpd: Drop unnecessary chars for filtered reason
Seems missed grammarly review for the reason "as-path contains our own AS;"

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-07-18 18:03:25 +03:00
Donald Sharp
b4ad2fae54 bgpd: Allow for auto-completion of community alias's created
Add a bit of code to allow for auto-completion of the community
alias command when attempting to use it for show commands.

example:
eva(config)# bgp community alias 11:22 FOO
eva(config)# end
eva# show bgp ipv4 uni alias
  ALIAS_NAME  BGP community alias
     FOO

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-07-16 09:52:53 -04:00
Donatas Abraitis
3125804678 bgpd: Fix dampening flap-statistics json crash
With fix:
```
exit1-debian-9# sh ip bgp dampening flap-statistics
BGP table version is 22, local router ID is 10.10.10.200, vrf id 0
Default local pref 100, local AS 65001
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

   Network          From            Flaps Duration Reuse    Path
*d 10.0.0.0/24      192.168.0.2     4    00:00:50 00:35:56 65000 ?
*d 10.10.10.100/32  192.168.0.2     4    00:00:50 00:35:56 65000 ?
*d 192.168.1.0/24   192.168.0.2     4    00:00:50 00:35:56 65000 ?

Displayed  3 routes and 10 total paths
exit1-debian-9# sh ip bgp dampening flap-statistics json
{
 "vrfId": 0,
 "vrfName": "default",
 "tableVersion": 22,
 "routerId": "10.10.10.200",
 "defaultLocPrf": 100,
 "localAS": 65001,
 "routes": { "10.0.0.0/24": [
  {
    "valid":true,
    "damped":true,
    "pathFrom":"external",
    "peerHost":"192.168.0.2",
    "bdiFlap":4,
    "peerUptime":"00:00:54",
    "peerUptimeMsec":54000,
    "peerUptimeEstablishedEpoch":1626355135,
    "reuseTimerMsecs":2151000,
    "asPath":"65000",
    "origin":"?"
  }
],"10.10.10.100/32": [
  {
    "valid":true,
    "damped":true,
    "pathFrom":"external",
    "peerHost":"192.168.0.2",
    "bdiFlap":4,
    "peerUptime":"00:00:54",
    "peerUptimeMsec":54000,
    "peerUptimeEstablishedEpoch":1626355135,
    "reuseTimerMsecs":2151000,
    "asPath":"65000",
    "origin":"?"
  }
],"192.168.1.0/24": [
  {
    "valid":true,
    "damped":true,
    "pathFrom":"external",
    "peerHost":"192.168.0.2",
    "bdiFlap":4,
    "peerUptime":"00:00:54",
    "peerUptimeMsec":54000,
    "peerUptimeEstablishedEpoch":1626355135,
    "reuseTimerMsecs":2151000,
    "asPath":"65000",
    "origin":"?"
  }
] }  }
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-07-15 16:20:02 +03:00
Donatas Abraitis
e5be8c1dac bgpd: Fix dampening dampened-paths json crash
```
5  0x00007fccab6fac39 in json_object_boolean_true_add (obj=<optimized out>, key=<optimized out>) at lib/json.c:70
No locals.
6  0x000055c7b8c08ae5 in route_vty_short_status_out (vty=<optimized out>, path=0x55c7bb37dcf0, p=<optimized out>, json_path=0x55c7bb3735a0)
    at bgpd/bgp_route.c:8566
        rpki_state = RPKI_NOT_BEING_USED
7  0x000055c7b8c22d1b in flap_route_vty_out (afi=AFI_IP, json=0x55c7bb3735a0, use_json=true, safi=SAFI_UNICAST, display=0, path=0x55c7bb37dcf0,
    p=0x55c7bb37dea0, vty=0x55c7bb39e4c0) at bgpd/bgp_route.c:9600
        attr = <optimized out>
        bdi = 0x55c7bb377950
        timebuf = '\000' <repeats 24 times>
        len = <optimized out>
8  bgp_show_table (vty=0x55c7bb39e4c0, bgp=0x55c7bb316300, safi=safi@entry=SAFI_UNICAST, table=0x55c7bb314d90, type=bgp_show_type_flap_statistics,
    output_arg=0x0, rd=0x0, is_last=1, output_cum=0x0, total_cum=0x0, json_header_depth=0x7ffeefd649f8, show_flags=1, rpki_target_state=RPKI_NOT_BEING_USED)
    at bgpd/bgp_route.c:11110
```

With fix:

```
exit1-debian-9# sh ip bgp dampening dampened-paths
BGP table version is 16, local router ID is 10.10.10.200, vrf id 0
Default local pref 100, local AS 65001
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

   Network          From             Reuse    Path
*d 10.0.0.0/24      192.168.0.2      00:21:08 65000 ?
*d 10.10.10.100/32  192.168.0.2      00:21:08 65000 ?
*d 192.168.1.0/24   192.168.0.2      00:21:08 65000 ?

Displayed  3 routes and 10 total paths
exit1-debian-9# sh ip bgp dampening dampened-paths json
{
 "vrfId": 0,
 "vrfName": "default",
 "tableVersion": 16,
 "routerId": "10.10.10.200",
 "defaultLocPrf": 100,
 "localAS": 65001,
 "routes": { "10.0.0.0/24": [
  {
    "valid":true,
    "damped":true,
    "pathFrom":"external",
    "reuseTimerMsecs":1263000,
    "asPath":"65000",
    "origin":"?",
    "peerHost":"192.168.0.2"
  }
],"10.10.10.100/32": [
  {
    "valid":true,
    "damped":true,
    "pathFrom":"external",
    "reuseTimerMsecs":1263000,
    "asPath":"65000",
    "origin":"?",
    "peerHost":"192.168.0.2"
  }
],"192.168.1.0/24": [
  {
    "valid":true,
    "damped":true,
    "pathFrom":"external",
    "reuseTimerMsecs":1263000,
    "asPath":"65000",
    "origin":"?",
    "peerHost":"192.168.0.2"
  }
] }  }
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-07-15 15:55:46 +03:00
Philippe Guibert
654a5978f6 bgpd: prevent routes loop through itself
Some BGP updates received by BGP invite local router to
install a route through itself. The system will not do it, and
the route should be considered as not valid at the earliest.

This case is detected on the zebra, and this detection prevents
from trying to install this route to the local system. However,
the nexthop tracking mechanism is called, and acts as if the route
was valid, which is not the case.

By detecting in BGP that use case, we avoid installing the invalid
routes.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
2021-07-12 13:57:36 +02:00
Donatas Abraitis
70d9b134f6 bgpd: Don't forget bgp_dest_unlock_node for bgp_static_set()
Before returning an error, unlock bgp dest which is locked by
bgp_node_lookup().

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-07-11 23:39:53 +03:00
Donald Sharp
acb4c44ef8
Merge pull request #8942 from ton31337/fix/cleanups_2
Another round of cleanup
2021-07-06 09:47:41 -04:00
Donatas Abraitis
89f4bd87dd bgpd: Unlock bgp_dest for bgp_distance_unset if distance does not match
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-07-03 22:16:31 +03:00
Donatas Abraitis
4953391b45 bgpd: Avoid more assignments within checks (round 2)
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-06-29 22:27:50 +03:00
Patrick Ruddy
fa855f8fa3
Merge pull request #6695 from adharkar/frr-master-gateway_ip
EVPN route type-5 gateway IP overlay Index
2021-06-23 09:23:54 +01:00
Xiao Liang
47fc62610c bgpd: Force process networks on VRF creation
Force the processing of existing network configurations when VRF is
created, otherwise will be skipped in bgp_static_update().

Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
2021-06-19 15:32:17 +08:00
Renato Westphal
994624c48d
Merge pull request #8836 from ton31337/fix/generalize_bgp_dest_locks
bgpd: Call bgp_dest_unlock_node() inside bgp_adj_in_remove()
2021-06-14 10:11:17 -03:00
Donatas Abraitis
6a840fd93f bgpd: Call bgp_dest_unlock_node() inside bgp_adj_in_remove()
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-06-11 09:39:23 +03:00
Donald Sharp
3f56f92b84
Merge pull request #8691 from louis-oui/split-soft-reconfig
bgpd: split soft reconfig table task into several jobs to not block vtysh
2021-06-10 12:04:54 -04:00
Donatas Abraitis
8d6aca7f21
Merge pull request #8754 from louis-oui/bgp-summary-filter
bgpd: improve show bgp summary display
2021-06-10 09:58:31 +03:00
Louis Scalbert
96c81f6671 bgpd: add terse display option on show bgp summary
Add a terse option to show bgp summary to shorten output.

Do not show the following information about the BGP
instances: the number of RIB entries, the table version and the used memory.
The "terse" option can be used in combination with the "remote-as", "neighbor",
"failed" and "established" filters, and with the "wide" option as well.

Before patch:

ubuntu# show bgp summary remote-as 123456
IPv4 Unicast Summary (VRF default):
BGP router identifier X.X.X.X, local AS number XXX vrf-id 0
BGP table version 0
RIB entries 3, using 552 bytes of memory
Peers 5, using 3635 KiB of memory

Neighbor        V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down State/PfxRcd   PfxSnt Desc
10.200.200.2    4     123456     81432         4        0 56092    0 00:00:13       572106        0 N/A

Displayed neighbors 1
Total number of neighbors 4

IPv6 Unicast Summary (VRF default):
BGP router identifier X.X.X.X, local AS number XXX vrf-id 0
BGP table version 0
RIB entries 3, using 552 bytes of memory
Peers 5, using 3635 KiB of memory

Neighbor        V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down State/PfxRcd   PfxSnt Desc
% No matching neighbor

Total number of neighbors 5

After patch:

ubuntu# show bgp summary remote-as 123456 terse
IPv4 Unicast Summary (VRF default):
BGP router identifier X.X.X.X, local AS number XXX vrf-id 0

Neighbor        V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down State/PfxRcd   PfxSnt Desc
10.200.200.2    4     123456     81432         4        0 56092    0 00:00:13       572106        0 N/A

Displayed neighbors 1
Total number of neighbors 4

IPv6 Unicast Summary (VRF default):
BGP router identifier X.X.X.X, local AS number XXX vrf-id 1

% No matching neighbor

Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
2021-06-08 10:47:35 +02:00
Ameya Dharkar
66ff60895a bgpd: Parse EVPN RT-5 NLRI and store gateway IP for EVPN route
While installing this route in the EVPN table, make sure all the conditions
mentioned in the draft
https://tools.ietf.org/html/draft-ietf-bess-evpn-prefix-advertisement-11 are
met.
Draft mentions following conditions:
  - ESI and gateway IP cannot be both nonzero at the same time.
  - ESI, gateway IP, RMAC and VNI label all cannot be 0 at the same time.

If the received EVPN RT-5 route does not meet these conditions, the route is
treated as withdraw.

Signed-off-by: Ameya Dharkar <adharkar@vmware.com>
2021-06-07 17:58:22 -07:00
Ameya Dharkar
8304dabfab bgpd: EVPN route type-5 gateway IP show command
Display gateway IP attribute in show command

"show bgp l2vpn evpn route type prefix [json]"

dev# sh bgp l2vpn evpn 100.0.0.21
BGP routing table entry for 10.100.0.2:1000:[5]:[0]:[32]:[100.0.0.21]
Paths: (1 available, best #1)
  Advertised to non peer-group peers:
  10.0.1.1
  Route [5]:[0]:[32]:[100.0.0.21] VNI 1000 Gateway IP 50.0.2.21
  203
    10.100.0.2 from 0.0.0.0 (10.100.0.2)
      Origin IGP, metric 0, valid, sourced, local, best (First path received)
      Extended Community: ET:8 RT:102:1000 Rmac:72:48:54:da:7f:13
      Last update: Mon Jun 29 12:29:05 2020

Signed-off-by: Ameya Dharkar <adharkar@vmware.com>
2021-06-07 17:58:22 -07:00
Ameya Dharkar
6c995628c1 bgpd: Generate and advertise gateway IP overlay index with EVPN RT-5
Gateway IP overlay index is generated for EVPN RT-5 when following CLI is
configured.

router bgp 100 vrf vrf-blue
 address-family l2vpn evpn
  advertise ipv4 unicast gateway-ip
  advertise ipv6 unicast gateway-ip

BGP nexthop of the VRF IP/IPv6 route is set as the gateway IP of the
corresponding EVPN RT-5

Signed-off-by: Ameya Dharkar <adharkar@vmware.com>
2021-06-07 17:58:22 -07:00
Donald Sharp
feb1723846 bgpd: Convert to using peer_established(peer) function
We are inconsistently using peer_establiahed(peer) with
sometimes using `peer->status == Established`.  Just Convert
over to using the function for consistency.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-06-07 10:48:36 -04:00
Louis Scalbert
46aeabedaf bgpd: split soft reconfigure table task into several jobs to not block vtysh
BGP configuration changes that imply recomputing the BGP route table
(e.g. modifying route-maps, setting bgp graceful-shutdown) might be a
long time process depending on the size of the BGP table and the
route-map numbers and complexity. For example, setups with full
Internet routes take something like one minute to reprocess all the
prefixes when graceful-shutdown is configured. During this time, a
"show bgp commands" request on vtysh results in blocking the shell until
the soft reconfigure table task is over.

This patch splits bgp_soft_reconfig_table task into thread jobs of 25K
prefixes.

Some tests on a full Internet route setup show that after reconfiguring
route-maps or graceful-shutdown, vtysh is not stucked anymore. We are
now able to request commands like "show bgp summary" after 1 or 2
seconds instead of 30 to 60s.

Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
2021-06-07 10:33:31 +02:00
Igor Ryzhov
faff43d05c bgpd: fix aggregate-address command
Additional parameters are not mandatory.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
2021-05-21 20:28:57 +03:00
Donatas Abraitis
a70a28a577 bgpd: Show BGP prefixes by community alias
This includes both community/large-community.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-05-19 18:11:38 +03:00
Neal Shrader
5df2642292 bgpd: scope evpn specific path selection to type-2 routes
For EVPN routes, there is specific logic in place for path selection
surrounding MAC Mobility.  For pure type-5 routes, if a route is
advertised with a MED, this is ignored since it ultimately falls inside
of the EVPN specific path selection logic, and ultimately selects the
lower IP address.  This change ensures only type-2 routes fall into the
EVPN BGP path selection.

Signed-off-by: Neal Shrader <neal@digitalocean.com>
2021-05-10 15:35:57 -04:00
Donatas Abraitis
ed0e57e3f0 bgpd: Create BGP alias names for community/large-community
Show alias name instead of numerical value in `show bgp <prefix>. E.g.:

```
root@exit1-debian-9:~/frr# vtysh -c 'sh run' | grep 'bgp community alias'
bgp community alias 65001:123 community-1
bgp community alias 65001:123:1 lcommunity-1
root@exit1-debian-9:~/frr#
```

```
exit1-debian-9# sh ip bgp 172.16.16.1/32
BGP routing table entry for 172.16.16.1/32, version 21
Paths: (2 available, best #2, table default)
  Advertised to non peer-group peers:
  65030
    192.168.0.2 from home-spine1.donatas.net(192.168.0.2) (172.16.16.1)
      Origin incomplete, metric 0, valid, external, best (Neighbor IP)
      Community: 65001:12 65001:13 community-1 65001:65534
      Large Community: lcommunity-1 65001:123:2
      Last update: Fri Apr 16 12:51:27 2021
exit1-debian-9#
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-05-05 16:37:00 +03:00
Donald Sharp
9c95ede706
Merge pull request #8501 from ton31337/fix/replace_community_check
bgpd: Check for flag existense for community instead of `if not NULL`
2021-04-20 09:10:30 -04:00
Donatas Abraitis
29e72930b1 bgpd: Check for flag existense for community instead of if not NULL
Absolutetly cosmetic change, but let it be consistent with other checks
for optional attributes.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-04-18 07:56:39 +03:00
Donatas Abraitis
ef3364f0f5 bgpd: Fix clang-format/indentation for show_ip_bgp_large_community_list_cmd
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-04-18 07:52:07 +03:00
Sri Mohana Singamsetty
dea4eee59f
Merge pull request #8446 from ton31337/fix/json_output_for_specific_vs_global_should_be_the_same
bgpd: Add `show bgp json detail` command
2021-04-13 17:33:17 -07:00
Sri Mohana Singamsetty
e64a538c70
Merge pull request #8448 from ton31337/feature/show_rpki_state_in_global_show_bgp
bgpd: Show RPKI short state in `show bgp <afi> <safi>`
2021-04-13 17:32:37 -07:00
Donatas Abraitis
f280c93b11 bgpd: Add show bgp json detail command
Print detailed version for JSON output when dumping ALL BGP table with
`show bgp <afi> <safi> json detail`.

This output should be at some sort of identical to show_ip_bgp_route_cmd.

To avoid breaking backward-compatibility for `show bgp json`, adding
'detail' keyword for that.

In long-term it's easier for operators to compare stuff just looking at global
view instead of per-prefix for details.

Before:

```
],"192.168.100.1/32": [
  {
    "valid":true,
    "bestpath":true,
    "selectionReason":"First path received",
    "pathFrom":"external",
    "prefix":"192.168.100.1",
    "prefixLen":32,
    "network":"192.168.100.1\/32",
    "metric":0,
    "weight":32768,
    "peerId":"(unspec)",
    "path":"",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"0.0.0.0",
        "hostname":"exit1-debian-9",
        "afi":"ipv4",
        "used":true
      }
    ]
  }
] }  }
```

After:
```
],"192.168.100.1/32": [
  {
    "aspath":{
      "string":"Local",
      "segments":[
      ],
      "length":0
    },
    "origin":"incomplete",
    "metric":0,
    "weight":32768,
    "valid":true,
    "sourced":true,
    "bestpath":{
      "overall":true,
      "selectionReason":"First path received"
    },
    "lastUpdate":{
      "epoch":1618040124,
      "string":"Sat Apr 10 07:35:24 2021\n"
    },
    "nexthops":[
      {
        "ip":"0.0.0.0",
        "hostname":"exit1-debian-9",
        "afi":"ipv4",
        "metric":0,
        "accessible":true,
        "used":true
      }
    ],
    "peer":{
      "peerId":"0.0.0.0",
      "routerId":"192.168.100.1"
    }
  }
] }  }
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-04-13 22:06:32 +03:00
Donatas Abraitis
7d3cae70b2 bgpd: Filter BGP routes by prefix version
The idea is to find out prefixes including specific BGP table version and
above.

Let's say I have a converged network and suddently I noticed a couple of
prefixes seems hijacked.

I want to look what new prefixes arrived with a specific BGP table version.

```
exit1-debian-9# show ip bgp version 8
BGP table version is 9, local router ID is 192.168.100.1, vrf id 0
Default local pref 100, local AS 65534
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*  192.168.2.0/24   192.168.0.2              0             0 65030 ?
*>                  192.168.0.2              0             0 65030 ?
*  192.168.3.0/24   192.168.0.2              0             0 65030 ?
*>                  192.168.0.2              0             0 65030 ?

Displayed  2 routes and 18 total paths
exit1-debian-9#
```

```
exit1-debian-9# show ip bgp version 8 json
{
 "vrfId": 0,
 "vrfName": "default",
 "tableVersion": 9,
 "routerId": "192.168.100.1",
 "defaultLocPrf": 100,
 "localAS": 65534,
 "routes": { "192.168.2.0/24": [
  {
    "valid":true,
    "pathFrom":"external",
    "prefix":"192.168.2.0",
    "prefixLen":24,
    "network":"192.168.2.0\/24",
    "version":8,
    "metric":0,
    "weight":0,
    "peerId":"2a02:bbd::2",
    "path":"65030",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"192.168.0.2",
        "hostname":"home-spine1.donatas.net",
        "afi":"ipv4",
        "used":true
      }
    ]
  },
  {
    "valid":true,
    "bestpath":true,
    "selectionReason":"Neighbor IP",
    "pathFrom":"external",
    "prefix":"192.168.2.0",
    "prefixLen":24,
    "network":"192.168.2.0\/24",
    "version":8,
    "metric":0,
    "weight":0,
    "peerId":"192.168.0.2",
    "path":"65030",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"192.168.0.2",
        "hostname":"home-spine1.donatas.net",
        "afi":"ipv4",
        "used":true
      }
    ]
  }
],"192.168.3.0/24": [
  {
    "valid":true,
    "pathFrom":"external",
    "prefix":"192.168.3.0",
    "prefixLen":24,
    "network":"192.168.3.0\/24",
    "version":9,
    "metric":0,
    "weight":0,
    "peerId":"2a02:bbd::2",
    "path":"65030",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"192.168.0.2",
        "hostname":"home-spine1.donatas.net",
        "afi":"ipv4",
        "used":true
      }
    ]
  },
  {
    "valid":true,
    "bestpath":true,
    "selectionReason":"Neighbor IP",
    "pathFrom":"external",
    "prefix":"192.168.3.0",
    "prefixLen":24,
    "network":"192.168.3.0\/24",
    "version":9,
    "metric":0,
    "weight":0,
    "peerId":"192.168.0.2",
    "path":"65030",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"192.168.0.2",
        "hostname":"home-spine1.donatas.net",
        "afi":"ipv4",
        "used":true
      }
    ]
  }
] }  }

```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-04-12 10:43:53 +03:00
Donatas Abraitis
9119ef3a8b bgpd: Show BGP table version which was used for a particular prefix
This is useful to go back in the past and check when was that prefix appeared,
changed, etc.

```
exit1-debian-9# show ip bgp 172.16.16.1/32
BGP routing table entry for 172.16.16.1/32, version 6
Paths: (2 available, best #2, table default)
  Advertised to non peer-group peers:
  home-spine1.donatas.net(192.168.0.2) home-spine1.donatas.net(2a02:bbd::2)
  65030
    192.168.0.2 from home-spine1.donatas.net(2a02:bbd::2) (172.16.16.1)
      Origin incomplete, metric 0, valid, external
      Last update: Thu Apr  8 20:15:25 2021
  65030
    192.168.0.2 from home-spine1.donatas.net(192.168.0.2) (172.16.16.1)
      Origin incomplete, metric 0, valid, external, best (Neighbor IP)
      Last update: Thu Apr  8 20:15:25 2021
exit1-debian-9#
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-04-11 21:42:18 +03:00
Donatas Abraitis
82c298be73 bgpd: Show RPKI short state in show bgp <afi> <safi>
Just to be more informant, copying from Cisco.

```
exit1-debian-9# sh ip bgp
BGP table version is 4, local router ID is 192.168.100.1, vrf id 0
Default local pref 100, local AS 65534
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

   Network          Next Hop            Metric LocPrf Weight Path
N*> 10.0.2.0/24      0.0.0.0                  0         32768 ?
N*> 192.168.0.0/24   0.0.0.0                  0         32768 ?
N*> 192.168.10.0/24  0.0.0.0                  0         32768 ?
N*> 192.168.100.1/32 0.0.0.0                  0         32768 ?

Displayed  4 routes and 4 total paths
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-04-11 21:39:46 +03:00
Trey Aspelund
4ad4ae6492 bgpd: fix old vpn command compilation failures
set_vpn_nexthop/no_set_vpn_nexthop were failing due to missing
declarations and unused variables.
This adds the missing declaration and removes unused variables.

Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
2021-04-01 01:36:02 +00:00
Trey Aspelund
a111dd975a bgpd: Add 'rd all' keyword to EVPN/L3VPN show cmds
New and improved submission for this commit -- updated to accommodate
changes from 4027d19b0.

Adds support for 'rd all' matching for EVPN and L3VPN show commands.
Introduces evpn_show_route_rd_all_macip().
Cleans up some show commands to use SHOW_DISPLAY string constants.

Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
2021-04-01 01:35:29 +00:00
Lou Berger
10794c494b
Revert "bgpd: Add 'rd all' keyword to EVPN/L3VPN show cmds" 2021-03-30 11:27:07 -04:00
Russ White
7d4fb56b27
Merge pull request #8216 from taspelund/add_rd_all
bgpd: Add 'rd all' keyword to EVPN/L3VPN show cmds
2021-03-30 10:41:08 -04:00
Russ White
40bf85a391
Merge pull request #8056 from jmmikkel/peertype
bgpd: Add "bgp bestpath peer-type multipath-relax"
2021-03-30 10:26:57 -04:00
Donald Sharp
4027d19b08 bgpd: Use rpki_curr_state instead of curr_state
During Review it was suggested that appending rpki_
to curr_state and target_state would be better
variable names.  Instead of going and fixing
3 or so commits up.  Just do this one.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-26 08:26:53 -04:00
Donald Sharp
1e2ce4f12f bgpd: Add rpki filter to some more show commands
Add a `show bgp ipv4 uni rpki ...` command.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-26 08:23:33 -04:00
Donald Sharp
8aa22bbb72 bgpd: Add show bgp <afi> <safi> A.B.C.D [rpki <valid|invalid|notfound>]
Add the ability for the end operator to query the state of valid
or invalid or no information rpki prefix information.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-26 08:23:33 -04:00
Donald Sharp
4933eaafab bgpd: Figure out rpki validation state earlier
Figure out the rpki validation state earlier and also check
to see if we care about this state or not.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-26 08:23:33 -04:00
Donald Sharp
1d327209be bgpd: Convert string output to rpki validation-state:
When displaying data about the rpki state, use the
string `rpki validation-state` instead of `validation-state:`
to avoid confusion with `(valid)`

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-26 08:23:33 -04:00
Donald Sharp
fdeb5a8135 bgpd: Convert RPKI states to an enum and use them
Convert the rpki states to an enum and use them in the code

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-26 08:23:33 -04:00
Anuradha Karuppiah
60605cbc78 bgpd: ES evpn nexthop prep work
Setup a mh_info indirection in the path extra. This has been done to
avoid increasing evpn route's path size to add new (type based) pointers
in path_info_extra.

Ticket: CM-31398

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
2021-03-25 17:09:53 -07:00
Anuradha Karuppiah
58bff4d12e bgpd: re-eval use-l3nhg when a remote ES is [de]activated in a VRF
There are two changes in this commit -

1. Maintain a list of global MAC-IP routes per-ES. This list is maintained
for quick processing on the following events -
a. When the first VTEP/PE becomes active in the ES-VRF, the L3 NHG is
activated and the route can be sent to zebra.
b. When there are no active PEs in the ES-VRF the L3 NHG is
de-activated and -
- If the ES is present in the VRF -
The route is not installed in zebra as there are no active PEs for
the ES-VRF
- If the ES is not present in the VRF -
The route is installed with a flat multi-path list i.e. without L3NHG.
This is to handle the case where there are no locally attached L2VNIs
on the ES (for that tenant VRF).

2. Reinstall VRF route when an ES is installed or uninstalled in a
tenant VRF (the global MAC-IP list in #1 is used for this purpose also).
If an ES is present in the VRF we use L3NHG to enable fast-failover of
routed traffic.

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
2021-03-25 17:09:53 -07:00
Joanne Mikkelson
ee88563ac2 bgpd: Add "bgp bestpath peer-type multipath-relax"
This new BGP configuration is akin to "bgp bestpath aspath
multipath-relax". When applied, paths learned from different peer types
will be eligible to be considered for multipath (ECMP). Paths from all
of eBGP, iBGP, and confederation peers may be included in multipaths
if they are otherwise equal cost.

This change preserves the existing bestpath behavior of step 10's result
being returned, not the result from steps 8 and 9, in the case where
both 8+9 and 10 determine a winner.

Signed-off-by: Joanne Mikkelson <jmmikkel@arista.com>
2021-03-23 08:59:33 -07:00
Trey Aspelund
093d16a23c bgpd: Add 'rd all' keyword to EVPN/L3VPN show cmds
Adds support for 'rd all' matching for EVPN and L3VPN show commands.
Introduces evpn_show_route_rd_all_macip().
Cleanup some show commands to use SHOW_DISPLAY string constants.

Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
2021-03-19 15:24:50 +00:00
David Lamparter
8451921b70 *: require semicolon after DEFINE_HOOK & co.
See previous commit.

Signed-off-by: David Lamparter <equinox@diac24.net>
2021-03-17 06:18:17 +01:00
Donald Sharp
d588b995f9 bgpd: use appropriate printf formatter for some uint32_t
newm and existm are uint32_t so let's use %u instead of %d
to print them out.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-15 10:56:08 -04:00
Donald Sharp
c0d72166ee bgpd: Convert remaining string output to our internal types
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-09 19:50:42 -05:00
Donald Sharp
b5b99af853 bgpd: Display RPKI validation state if we have it
When dumping data about prefixes in bgp.  Let's dump the
rpki validation state as well:

Output if rpki is turned on:
janelle# show rpki prefix 2003::/19
Prefix                                   Prefix Length  Origin-AS
2003::                                      19 -  19         3320
janelle# show bgp ipv6 uni 2003::/19
BGP routing table entry for 2003::/19
Paths: (1 available, best #1, table default)
  Not advertised to any peer
  15096 6939 3320
    ::ffff:4113:867a from 65.19.134.122 (193.72.216.231)
    (fe80::e063:daff:fe79:1dab) (used)
      Origin IGP, valid, external, best (First path received), validation-state: valid
      Last update: Sat Mar  6 09:20:51 2021
janelle# show rpki prefix 8.8.8.0/24
Prefix                                   Prefix Length  Origin-AS
janelle# show bgp ipv4 uni 8.8.8.0/24
BGP routing table entry for 8.8.8.0/24
Paths: (1 available, best #1, table default)
  Advertised to non peer-group peers:
  100.99.229.142
  15096 6939 15169
    65.19.134.122 from 65.19.134.122 (193.72.216.231)
      Origin IGP, valid, external, best (First path received), validation-state: not found
      Last update: Sat Mar  6 09:21:25 2021

Example output when rpki is not configured:
eva# show bgp ipv4 uni 8.8.8.0/24
BGP routing table entry for 8.8.8.0/24
Paths: (1 available, best #1, table default)
  Advertised to non peer-group peers:
  janelle(192.168.161.137)
  64539 15096 6939 15169
    192.168.161.137(janelle) from janelle(192.168.161.137) (192.168.44.1)
      Origin IGP, valid, external, bestpath-from-AS 64539, best (First path received)
      Last update: Sat Mar  6 09:33:51 2021

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-07 07:08:33 -05:00
Trey Aspelund
3ba7b4aff0 bgpd: fix bgp statistics for l2vpn evpn
'show bgp l2vpn evpn statistics' was returning 0 for all stats
because bgp_table_stats_walker bailed out if afi != AFI_IP or AFI_IP6.
Add case condition to catch AFI_L2VPN.

Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
2021-03-04 02:05:56 +00:00
Donald Sharp
a1b773e287 bgpd: Wait for Install should not always set the flag
If we are filtering a route due to any of the filter reasons
we should not be setting the BGP_NODE_FIB_INSTALL_FIB_PENDING
flag.  This is especially evident with say a loopback that
is covered by a network statement.  When we receive the route
back from our peer we should not be setting the
BGP_NODE_FIB_INSTALL_PENDING flag on it.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-03-01 13:09:11 -05:00
Mark Stapp
15869cd81d
Merge pull request #8035 from qlyoung/remove-more-sprintf
*: remove more sprintf()
2021-02-23 15:55:02 -05:00
Donatas Abraitis
2031dbf31c
Merge pull request #7444 from sudhanshukumar22/bgp-clean-dampening-issue
bgpd: clear ip bgp dampening was not triggering the route calculation…
2021-02-22 09:37:04 +02:00
Donatas Abraitis
ef1a9fc47a
Merge pull request #8050 from taspelund/bgp_vpn_advertised_routes
bgpd: fix empty advertised-routes for 2-tier safis
2021-02-15 22:38:17 +02:00
Trey Aspelund
d9478df0dc bgpd: fix empty advertised-routes for 2-tier safis
'show bgp ipv[46] vpn neighbors ... advertised-routes' was displaying
empty output due to new command syntax using show_adj_routes() which
assumed each bgp_table was single-tier (not nested).  This fixes that
assumption for safis with a two-tier bgp_table (SAFI_MPLS_VPN,
SAFI_ENCAP, and SAFI_EVPN).

Before:
ub18# show bgp ipv6 vpn neighbors 2001:db8:cafe::2 advertised-routes
ub18#

After:
ub20# show bgp ipv6 vpn neighbors 2001:db8:cafe::1 advertised-routes
BGP table version is 2, local router ID is 100.64.0.222, vrf id 0
Default local pref 100, local AS 1
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
Route Distinguisher: 30:30
*> 2::2/128         ::                       0    100  32768 i
*> 2::22/128        ::                       0    100  32768 i
Route Distinguisher: 33:33
*> 2::2/128         ::                       0    100  32768 i
*> 2::22/128        ::                       0    100  32768 i

Total number of prefixes 4

Signed-off-by: Trey Aspelund <taspelund@nvidia.com>
2021-02-11 21:04:10 +00:00
Donatas Abraitis
bcab253c22 bgpd: Replace typo "Cluser length" => "Cluster length"
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-02-11 17:11:12 +02:00
Martin Winter
7a9c641d5c
Merge pull request #7917 from pjdruddy/l3vpn-mpls-snmp-upstream-1
L3vpn mpls snmp upstream 1
2021-02-10 01:37:58 +01:00
Quentin Young
7533cad751 *: remove more sprintf()
Should be just a couple non-development, non-test occurrences of this
function left now.

Signed-off-by: Quentin Young <qlyoung@qlyoung.net>
2021-02-09 15:40:40 -05:00
Donald Sharp
04aabf1b27
Merge pull request #8027 from ton31337/fix/remove_json_aggregatorasmalformed
bgpd: Remove aggregatorAsMalformed related outputs JSON and non-JSON
2021-02-08 20:11:54 -05:00
zyxwvu Shi
aeadbd9e19 bgpd: Do not compare attr again.
`same_attr` has been computed and `hook_call(bgp_process)` (calling
BMP module) would not change it. We could reuse the value to filter
same attribute updates, avoiding an extra comparison.

Signed-off-by: zyxwvu Shi <i@shiyc.cn>
2021-02-08 20:09:02 +08:00
Donatas Abraitis
88d495a961 bgpd: Remove aggregatorAsMalformed related outputs JSON and non-JSON
Already not necessary, because if BGP aggregator AS attribute is with
value of 0, then the attribute is already discarded at early processing.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-02-06 13:45:30 +02:00
sudhanshukumar22
c8ddbd4804 bgpd: clear ip bgp dampening was not triggering the route calculation for the prefix
Description:
    clear ip bgp dampening was not triggering the route
    calculation for the prefix, Due to this prefix are not install in
    RIB(Zebra) and not adv to neighbor

Problem Description/Summary :
    clear ip bgp dampening was not triggering the route
    calculation for the prefix, Due to this prefix are not install in
    RIB(Zebra) and not adv to neighbor

    Fix: When clear ip bgp dampening, route are put for route-calculation as
    that it is install in the Zebra and adv to neighbor.

Signed-off-by: sudhanshukumar22 <sudhanshu.kumar@broadcom.com>
2021-02-02 03:16:04 -08:00
Pat Ruddy
7fd28dd245 bgpd: add mplsL3VpnVrfPerfTable support
support for counts of per-vrf routes:
added
deleted
current

Signed-off-by: Pat Ruddy <pat@voltanet.io>
2021-02-02 09:37:10 +00:00
Donald Sharp
62e0464d73 bgpd: Remove #if 0 code
Remove all dead #if 0 code from bgpd.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-01-28 13:57:49 -05:00
Donatas Abraitis
218c799eae
Merge pull request #7433 from sudhanshukumar22/bgp-aggregate-member-issue
bgpd:'bgpd' core generated on Leaf device with system-test config
2021-01-28 10:34:22 +02:00
Pat Ruddy
4053e9520a bgpd: make sure nh is valid for MPLS vpn routes
If we are using a nexthop for a MPLS VPN route make sure the
nexthop is over a labeled path. This new check mirrors the one
in validate_paths (where routes are enabled when a nexthop
becomes reachable). The check is introduced to the code path
where routes are added and the nexthop is looked up.

Signed-off-by: Pat Ruddy <pat@voltanet.io>
2021-01-27 13:56:45 +00:00
Donatas Abraitis
b4efa101a8 bgpd: Assert that community_str2com("no-export") always returns non-NULL
community_str2com("no-export"); returns ALWAYS non-NULL.

If NULL returned here, we really have a bigger problems in the call path.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-01-25 09:51:22 +02:00
Donatas Abraitis
aade37d727 bgpd: Set no-export community for blackhole tagged prefixes
RFC says to prevent propagation of the prefix outside the local AS.

So, let's use NO_EXPORT.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-01-25 09:09:37 +02:00
Donatas Abraitis
9e2912897d bgpd: Log prefix when community filter fails
This is needed when NO_ADVERTISE or NO_EXPORT is handled for outgoing
updates.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-01-24 10:48:41 +02:00
Donald Sharp
f939c3a69f
Merge pull request #7899 from ton31337/fix/bgpd_blackhole_community
bgpd: Massage Blackhole community
2021-01-22 08:36:27 -05:00
Sarita Patra
d5f2046840 bgpd : multiple memory leak fixes in show commands
Issue: bgpd got kill due to out of memory, when show bgp
neighbor json and show ip bgp neighbor <ip> routes json
commands executed multiple times in a setup having 320554
routes.

RCA: Heap allocated for bgpd keeps increasing. This is verified
using top command and show memory command.

Memleak Fix-1: show ip bgp route json command
When dumping a large bit of table data via bgp_show_route
and if there is no information to display for a particular
struct bgp_node *` the data allocated via json_object_new_array()
is not freed. This is resolved now.

Memleak Fix-2:
The function bgp_peer_counts() doesn't free the memory allocated for
json_loop when there is No such neighbor or address family. This is
fixed now.

Signed-off-by: Sarita Patra <saritap@vmware.com>
2021-01-21 21:15:23 -08:00
Donatas Abraitis
2721dd613f bgpd: Set NO_ADVERTISE community if blackhole community received
rfc7999:
A BGP speaker receiving an announcement tagged with the BLACKHOLE
community SHOULD add the NO_ADVERTISE or NO_EXPORT community as
defined in [RFC1997], or a similar community, to prevent propagation
of the prefix outside the local AS.  The community to prevent
propagation SHOULD be chosen according to the operator's routing
policy.

Sent:
```
router bgp 65534
 no bgp ebgp-requires-policy
 neighbor 192.168.0.2 remote-as 65030
 !
 address-family ipv4 unicast
  redistribute connected
  neighbor 192.168.0.2 route-map spine out
 exit-address-family
 !
!
ip prefix-list self seq 5 permit 192.168.100.1/32
!
route-map spine permit 10
 match ip address prefix-list self
 set community blackhole
!
```

Received:
```
spine1-debian-9# show ip bgp 192.168.100.1/32
BGP routing table entry for 192.168.100.1/32
Paths: (1 available, best #1, table default, inform peer to blackhole prefix)
  Not advertised to any peer
  65534
    192.168.0.1 from 192.168.0.1 (192.168.100.1)
      Origin incomplete, metric 0, valid, external, best (First path received)
      Community: blackhole no-advertise
      Last update: Thu Jan 21 12:56:39 2021
```

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-01-21 16:00:53 +02:00
sudhanshukumar22
a4559740ea bgpd:'bgpd' core generated on Leaf device with system-test config
Description:
aggregate member route was enqueued for recalculation
    while bgp instance was deleted.
    As part of aggregate member route deletion, the aggregate route is
    reinstalled with self-peer as source, but self-peer is already removed.
    Assert() for null peer pointer is path attribute aborts bgp.
Problem Description/Summary :
BGP crashed while cleaning up aggregate route as part of bgp instance deletion.
-----------------------
Leaf-4(config)#
Leaf-4(config)# no router bgp 65179 vrf Vrf-red
Leaf-4(config)# no router bgp 65179
Leaf-4(config)#
Leaf-4(config)#
Leaf-4(config)# root@Leaf-4:~#

Sep 26 15:38:21.257554 System is not ready - Core services are down
------------
router bgp 65179
bgp router-id 100.2.0.3
no bgp default ipv4-unicast
bgp network import-check
neighbor LeafToHostv4 peer-group
neighbor LeafToHostv4 remote-as 65003
neighbor LeafToHostv6 peer-group
neighbor LeafToHostv6 remote-as 65003
neighbor LeafToSpinev4 peer-group
neighbor LeafToSpinev4 remote-as 65134
neighbor LeafToSpinev4 bfd
neighbor LeafToSpinev6 peer-group
neighbor LeafToSpinev6 remote-as 65134
neighbor LeafToSpinev6 bfd
neighbor WindowsServer peer-group
neighbor WindowsServer remote-as 65201
neighbor 155.1.0.4 peer-group LeafToSpinev4
neighbor 155.2.0.4 peer-group LeafToSpinev4
neighbor 2000:155:1::4 peer-group LeafToSpinev6
neighbor 2000:155:2::4 peer-group LeafToSpinev6
neighbor 172.16.11.2 peer-group WindowsServer
neighbor 172.16.1.2 remote-as 65101
neighbor 2000:172:16:1::2 remote-as 65101
bgp listen limit 400
bgp listen range 133.3.0.0/16 peer-group LeafToHostv4
bgp listen range 2000:133:3::/48 peer-group LeafToHostv6
!
address-family ipv4 unicast
aggregate-address 133.1.0.0/16 as-set
aggregate-address 133.2.0.0/16 as-set
aggregate-address 133.3.0.0/16 as-set
aggregate-address 133.4.0.0/16 as-set
redistribute connected
neighbor LeafToHostv4 activate
neighbor LeafToSpinev4 activate
neighbor LeafToSpinev4 allowas-in 1
neighbor LeafToSpinev4 route-map spine_v4_export out
neighbor WindowsServer activate
neighbor 172.16.1.2 activate
exit-address-family
!
address-family ipv6 unicast
aggregate-address 2000:133:1::/48 as-set
aggregate-address 2000:133:2::/48 as-set
aggregate-address 2000:133:3::/48 as-set
aggregate-address 2000:133:4::/48 as-set
redistribute connected
..
------------
(gdb) bt
name=0x55607dd49090 <_FUNCTION_.23915> "bgp_path_info_add")
at bgpd/bgpd.c:1159
name=name@entry=0x55607dd49090 <_FUNCTION_.23915> "bgp_path_info_add",
peer=<optimized out>) at bgpd/bgpd.c:1158
pi=<optimized out>) at bgpd/bgp_route.c:313
afi=afi@entry=AFI_IP, safi=safi@entry=SAFI_UNICAST,
p=p@entry=0x55607f1c4e10, origin=<optimized out>, aspath=0x55607f4bc8a0,
community=<optimized out>, ecommunity=<optimized out>,
lcommunity=<optimized out>, atomic_aggregate=0 '\000',
aggregate=0x55607f1c4ee0) at bgpd/bgp_route.c:5926
aggr_p=<optimized out>, aggregate=<optimized out>, pi=0x55607f41f9f0,
safi=SAFI_UNICAST, afi=AFI_IP, bgp=0x55607eeba5d0) at bgpd/bgp_route.c:6385
del=del@entry=0x55607f41f9f0, afi=afi@entry=AFI_IP,
--Type <return> to continue, or q <return> to quit--
safi=safi@entry=SAFI_UNICAST) at bgpd/bgp_route.c:6446
pi=0x55607f41f9f0, peer=0x55607ef22c10, afi=AFI_IP, safi=SAFI_UNICAST)
at bgpd/bgp_route.c:2885
data=<optimized out>) at bgpd/bgp_route.c:4125
at lib/workqueue.c:291
at lib/thread.c:1540
at bgpd/bgp_main.c:498
(gdb) fr 5
name=name@entry=0x55607dd49090 <_FUNCTION_.23915> "bgp_path_info_add",
peer=<optimized out>) at bgpd/bgpd.c:1158
1158 bgpd/bgpd.c: No such file or directory.
(gdb) fr 10
pi=0x55607f41f9f0, peer=0x55607ef22c10, afi=AFI_IP, safi=SAFI_UNICAST)
at bgpd/bgp_route.c:2885
2885 bgpd/bgp_route.c: No such file or directory.
(gdb) p peer->lock
$2 = 210
(gdb) p peer->status
$3 = 8
(gdb)
(gdb) p bgp
$11 = (struct bgp *) 0x56121ba315d0
(gdb) p bgp->peer_self
$12 = (struct peer *) 0x0
(gdb) p bgp->name
$13 = 0x0
(gdb) p bgp->name_pretty
$14 = 0x56121bb046a0 "VRF default"
(gdb) p bgp->inst_type
$15 = BGP_INSTANCE_TYPE_DEFAULT
(gdb)

bgp_aggregate_install():
5920
5921 new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_AGGREGATE, 0,
5922 bgp->peer_self, attr, rn);
5923
5924 SET_FLAG(new->flags, BGP_PATH_VALID);
5925
5926 bgp_path_info_add(rn, new);
5927 bgp_process(bgp, rn, afi, safi);

299 void bgp_path_info_add(struct bgp_node *rn, struct bgp_path_info *pi):
...
310
311 bgp_path_info_lock(pi);
312 bgp_lock_node(rn);
313 peer_lock(pi->peer); /* bgp_path_info peer reference */ <<< This points to bgp->peer_self = NULL
314 }

1573 #define peer_lock(B) peer_lock_with_caller(_FUNCTION_, (B))

1156 /* increase reference count on a struct peer */
1157 struct peer *peer_lock_with_caller(const char *name, struct peer *peer)
1158 {
1159 assert(peer && (peer->lock >= 0)); <<< asserted here
1160

Similar issue was fixed in community and we already have the fix:
https://github.com/FRRouting/frr/pull/4816
root@sr407497_lxc2:/home/ubuntu/frr_repo/frr/bgpd# git diff dfb6fd1dd119a5bd660012e940e8328534547e76~ dfb6fd1dd1
diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c
index abad1db..a372568 100644
— a/bgpd/bgp_route.c
+++ b/bgpd/bgp_route.c
@@ -5332,6 +5332,13 @@ static void bgp_purge_af_static_redist_routes(struct bgp *bgp, afi_t afi,
struct bgp_node *rn;
struct bgp_path_info *pi;

+ /* Do not install the aggregate route if BGP is in the
+ * process of termination.
+ */
+ if (bgp_flag_check(bgp, BGP_FLAG_DELETE_IN_PROGRESS) ||
+ (bgp->peer_self == NULL))
+ return;
+
table = bgp->rib[afi][safi];
for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) {
for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) {

But looks like similar handling is required at other places as well:

Expected Behavior :
BGP daemon should not crash

Signed-off-by: sudhanshukumar22 <sudhanshu.kumar@broadcom.com>
2021-01-18 01:33:56 -08:00
Donald Sharp
484eabb1d7
Merge pull request #7439 from opensourcerouting/bgp-damp-profile2
bgpd: BGP route-flap dampening profiles for peers and peer groups
2021-01-12 11:45:41 -05:00
Russ White
f3c5ce84e2
Merge pull request #7247 from ton31337/feature/enhanced_route_refresh_capability
bgpd: Enhanced Route Refresh capability
2021-01-12 11:27:11 -05:00
Donald Sharp
7df0e6bb3b
Merge pull request #7756 from pjdruddy/bgplu-fixes
Bgplu fixes
2021-01-09 15:48:22 -05:00
Donald Sharp
92269aa253 bgpd: Allow more detailed knowledge of bgp's internal state
When bgp is using wait for install semantics it would be nice
to be able to debug it when it is running.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2021-01-05 15:37:33 -05:00
Donatas Abraitis
9af52ccf81 bgpd: Implement enhanced route refresh capability
16:40:49 BGP: 192.168.0.2: sending route-refresh (BoRR) for IPv4/unicast
16:40:51 BGP: 192.168.0.2: sending route-refresh (EoRR) for IPv4/unicast

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2021-01-05 20:19:41 +02:00
Pat Ruddy
992dd67ec7 bgpd: refactor label allocation code
To prepare for fixing an issue where labels do not get released back
to the labelpool when the route is deleted some refactoring is
necessary. There are 2 parts to this.
1. restructure the code to remove the circular nature of label
allocations via the labelpool and decouple the label type decision
from the notification fo the FEC.
The code to notify the FEC association to zebra has been split out
into a separate function so that it can be called from the synchronous
path (for registration of index-based labels and de-registration of all
labels), and from the asynchronous path where we need to wait for a
callback from the labelpool code with a label allocation.
The decision about whether we are using an index-based label or an
allocated label is reflected in the state of the BGP_NODE_LABEL_REQUESTED
flag so the checks on the path_info in the labelpool callback code are
no longer required.
2. change the owned of a labelpool allocated label from the path info
structure to the bgp_dest structure. This allows labels to be released
(in a subsequent commit) when the owner (bgp_dest) goes away.

Signed-off-by: Pat Ruddy <pat@voltanet.io>
2021-01-04 14:29:44 +00:00
Donald Sharp
d6bbfefe14 bgpd: Remove awful test of strmatch + get_afi_safi_str
Remove awful test of a strmatch against a call to get_afi_safi_str.
These are the easy ones as that the real decision point is/was
underneath this test.  This is just duplicate expensive testing.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-12-17 16:49:20 -05:00
Donald Sharp
3742de8d68 bgpd: Use the header
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-12-17 16:42:33 -05:00
Chirag Shah
1c00fb274c bgpd: local routes use non-default distance
Use user provided AD for local routes (aggregate).

 address-family ipv4 unicast
  distance bgp 20 200 210
  network 47.2.2.8/30
  aggregate-address 51.1.0.0/16

Testing Done:

Before aggr route uses default 200 AD even user provided local AD.
B>* 51.1.0.0/16 [200/0] unreachable (blackhole), weight 1, 00:01:14

After:
B>* 51.1.0.0/16 [210/0] unreachable (blackhole), weight 1, 00:00:01

Signed-off-by: Chirag Shah <chirag@nvidia.com>
2020-12-09 16:28:17 -08:00
Chirag Shah
801bb996a4 bgpd: fix distance for aggregate route
bgp aggregate address installs route with self peer which
can have peer->su of unspecifed type.
bgp_distance_apply bailed out as it fails to parse
sockunion2hostprefix for af type unspec.

config:
 address-family ipv4 unicast
  aggregate-address 50.1.0.0/16 summary-only

Testing Done:

Before:
B>* 50.1.0.0/16 [20/0] unreachable (blackhole), weight 1, 00:00:02

After:
B>* 50.1.0.0/16 [200/0] unreachable (blackhole), weight 1, 00:01:28

Signed-off-by: Chirag Shah <chirag@nvidia.com>
2020-12-07 08:31:04 -08:00
Donatas Abraitis
bbb46eb5ae bgpd: Show best path reason in JSON output for show bgp command
exit1-debian-9# show ip bgp json
{
 "vrfId": 0,
 "vrfName": "default",
 "tableVersion": 2,
 "routerId": "192.168.255.1",
 "defaultLocPrf": 100,
 "localAS": 65000,
 "routes": { "172.16.255.254/32": [
  {
    "valid":true,
    "bestpath":true,
    "selectionReason":"First path received",
    "pathFrom":"external",
    "prefix":"172.16.255.254",
    "prefixLen":32,
    "network":"172.16.255.254\/32",
    "metric":0,
    "weight":0,
    "peerId":"192.168.255.2",
    "path":"65001",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"192.168.255.2",
        "hostname":"exit1-debian-9",
        "afi":"ipv4",
        "used":true
      }
    ]
  }
],"192.168.255.0/24": [
  {
    "valid":true,
    "bestpath":true,
    "selectionReason":"First path received",
    "pathFrom":"external",
    "prefix":"192.168.255.0",
    "prefixLen":24,
    "network":"192.168.255.0\/24",
    "metric":0,
    "weight":0,
    "peerId":"192.168.255.2",
    "path":"65001",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"192.168.255.2",
        "hostname":"exit1-debian-9",
        "afi":"ipv4",
        "used":true
      }
    ]
  }
] }  }

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2020-12-01 22:36:05 +02:00
Anuradha Karuppiah
229587fb46 bgpd: commands to display L3 NHGs and MAC-IP paths linked to an ES
Sample output -
===============
torm-11# sh bgp l2vpn evpn es-vrf
ES-VRF Flags: A Active
ESI                            VRF             Flags IPv4-NHG IPv6-NHG Ref
03:44:38:39:ff:ff:01:00:00:01  vrf3            A     1        0        2
03:44:38:39:ff:ff:01:00:00:01  vrf2            A     6        0        4
03:44:38:39:ff:ff:01:00:00:01  vrf1            A     7        0        4
03:44:38:39:ff:ff:01:00:00:02  vrf3            A     2        0        2
03:44:38:39:ff:ff:01:00:00:02  vrf2            A     4        0        4
03:44:38:39:ff:ff:01:00:00:02  vrf1            A     8        0        4

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
2020-11-24 11:06:08 -08:00
Anuradha Karuppiah
26c03e43fb bgpd: Handle ES VTEP add/del to a host route
1. MAC-IP routes in the VPN routing table are linked to the
destination ES for efficient handling for remote ES link flaps.
2. Only MAC-IP paths whose nexthops are active (added via EAD-ES)
are imported into the VRF routing table.

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
2020-11-24 11:06:08 -08:00
Donald Sharp
0154d8ce45 bgpd, lib, nhrpd, zebra: verify return of sockunion2hostprefix
The return from sockunion2hostprefix tells us if the conversion
succeeded or not.  There are places in the code where we
always assume that it just `works`, since it can fail
notice and try to do the right thing.

Please note that failure of this function for most cases
of sockunion2hostprefix is highly highly unlikely as that
the sockunion was already created and tested elsewhere
it's just that this function can fail.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-18 11:04:27 -05:00
Donald Sharp
a08ccc5e31
Merge pull request #7541 from ton31337/fix/hardcoded_function_names
bgpd: Use __func__ instead of hardcoded strings for some functions
2020-11-17 09:28:09 -05:00
Donald Sharp
399ef80cc3
Merge pull request #7540 from ton31337/fix/typo
*: Replace typo (supress => suppress)
2020-11-17 08:13:17 -05:00
Russ White
2bd9d50ca1
Merge pull request #7523 from donaldsharp/route_map_object_t
*: Remove route_map_object_t from the system
2020-11-17 07:16:12 -05:00
Donatas Abraitis
84c320dc01 bgpd: Use __func__ instead of hardcoded strings for some functions
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2020-11-17 13:32:15 +02:00
Donatas Abraitis
7c98d487b8 *: Replace typo (supress => suppress)
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2020-11-17 12:13:38 +02:00
Donatas Abraitis
e5c317bcfa
Merge pull request #7526 from donaldsharp/i_am_a_robot_wumpalump
Cleanup on Aisle 5: Memory leaks, Uninited data and code snarfles
2020-11-16 17:32:30 +02:00
Donatas Abraitis
3dbaf077d4
Merge pull request #7461 from donaldsharp/attribute_setget
Attribute setget
2020-11-16 12:20:40 +02:00
Donald Sharp
6c924775b5 bgpd: Convert attr->evpn_overlay to accessor functions
Convert usage of the attr->evpn_overlay to get/set functionality.
Future commits will allow us to abstract this data to when
we actually need it for the `struct attr`.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-15 09:49:14 -05:00
Donald Sharp
779fee9303 bgpd: Abstract attr->cluster to accessor/set functions
Abstract the access of `attr->cluster` to appropriate
accessor/set functionality.

Future commits will allow us to move this data around
to make `struct attr` smaller.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-15 09:44:47 -05:00
Donald Sharp
2a3f51cf6b bgpd: Add accessor for bgp_attr.pmsi_tnl_type
Add an accessor for the bgp_attr.pmsi_tnl_type to allow
us to abstract where it is.  Every attribute is paying
the price of this bit of data as part of `struct bgp_attr`
In the future we'll move it elsewhere.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-15 09:44:47 -05:00
Donald Sharp
ff3bf9a436 bgpd: Free aggr_suppresors list on extra deletion
When we delete the bgp_path_info_extra data structure free
the aggr_suppressors data structure that was left dangling.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-14 19:16:57 -05:00
Donald Sharp
4f28b2b59e bgpd: When showing a lcommunity free alloced memory
We are temporarily allocing memory to show lcommunity
information.  We then immediately drop it.  Account for
that memory properly.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-14 16:29:16 -05:00
Donald Sharp
1782514fb9 *: Remove route_map_object_t from the system
The route_map_object_t was being used to track what protocol we were
being called against.  But each protocol was only ever calling itself.
So we had a variable that was only ever being passed in from route_map_apply
that had to be carried against and everyone was testing if that variable
was for their own stack.

Clean up this route_map_object_t from the entire system.  We should
speed some stuff up.  Yes I know not a bunch but this will add up.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-13 19:35:20 -05:00
Mark Stapp
28f66de2ed bgpd: fix SA warning
Fix a coverity warning about an obscure path involving labels.

Signed-off-by: Mark Stapp <mjs@voltanet.io>
2020-11-12 16:27:31 -05:00
Santosh P K
9b936c5c36
Merge pull request #4770 from kssoman/fib
Advertise FIB installed routes to bgp peers
2020-11-12 18:59:24 +05:30
Donald Sharp
6338d24218 bgpd: Fix mistakes in defer working
Commit: 26742171e6

Mistakenly reversed the logic for the test on the list length
when it was removed.  Fix this.

Additionally limit for loop to stop when we know there are no
more items to process that have the BGP_NODE_SELECT_DEFER flag.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-06 19:13:59 -05:00
Soman K S
a77e2f4bab bgpd: Advertise FIB installed routes to bgp peers (Part 3)
* Process FIB update in bgp_zebra_route_notify_owner() and call
  group_announce_route() if route is installed
* When bgp update is received for a route which is not installed earlier
  (flag BGP_NODE_FIB_INSTALLED is not set) and suppress fib is enabled
  set the flag BGP_NODE_FIB_INSTALL_PENDING to indicate fib install is
  pending for the route. The route will be advertised when zebra send
  ZAPI_ROUTE_INSTALLED status.
* The advertisement delay (BGP_DEFAULT_UPDATE_ADVERTISEMENT_TIME)
  is added to allow more routes to be sent in single update message.
  This is required since zebra sends route notify message for each route.
  The delay will be applied to update group timer which advertises
  routes to peers.

Signed-off-by: kssoman <somanks@gmail.com>
2020-11-06 08:55:56 +05:30
Donald Sharp
56c226e773 bgpd: Cleanup memory leaks associated with t_router_timer
We are allocating temporary memory for information about
what to process in this thread, which is not being cleaned
up on thread cancelling.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-04 21:02:57 -05:00
Donald Sharp
26742171e6 bgpd: Remove pointer structure from struct bgp_dest
The `struct listnode *rt_node` data structure is adding
8 bytes of size to the `struct bgp_dest`.  This is a large
amount of data for a flag we are already setting on each
node for this.  Just set the flag and use that to figure
out who we are doing graceful restart on.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-04 15:18:01 -05:00
Donatas Abraitis
626d165d04
Merge pull request #7447 from donaldsharp/table_stats
bgpd: Allow 1 prefix to generate statistics
2020-11-04 08:46:26 +02:00
Lou Berger
dc7b85a2f9
Merge pull request #7274 from donaldsharp/bgp_best_is_a_path
bgpd: allow bestpath to handle mutliple locally-originated paths
2020-11-03 16:06:48 -05:00
Donald Sharp
2b6b4a54cc bgpd: Allow 1 prefix to generate statistics
When generating a config with 1 prefix:

BGP IPv4 Unicast RIB statistics
Total Advertisements          :            0
Total Prefixes                :            0
Average prefix length         :         0.00
Unaggregateable prefixes      :            0
Maximum aggregateable prefixes:            0
BGP Aggregate advertisements  :            0
Address space advertised      :            0
                  % announced :         0.00
                /8 equivalent :         0.00
               /24 equivalent :         0.00

Advertisements with paths     :            0
Longest AS-Path (hops)        :            0
Average AS-Path length (hops) :         0.00
Largest AS-Path (bytes)       :            0
Average AS-Path size (bytes)  :         0.00
Highest public ASN            :            0
eva# show bgp ipv4 uni summ
BGP router identifier 10.10.3.11, local AS number 329 vrf-id 0
BGP table version 1
RIB entries 1, using 192 bytes of memory
Peers 1, using 23 KiB of memory

Neighbor        V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down State/PfxRcd   PfxSnt
192.168.161.131 4      60000        24        27        0    0    0 00:01:05     (Policy)        1

Total number of neighbors 1

We are not displaying it in the statistics data.  This is because FRR is walking the associated
table and comparing the current dest to the top of the tree.  I have no idea why this is
the case as that when you have 1 prefix you only have 1 node in your tree.  Looking at the
code this is the original code that was imported in 2006.  I cannot think of any reason why
FRR needs to exclude this particular node.

Fixed:
eva# show bgp ipv4 uni summ
BGP router identifier 10.10.3.11, local AS number 329 vrf-id 0
BGP table version 1
RIB entries 1, using 192 bytes of memory
Peers 1, using 23 KiB of memory

Neighbor        V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down State/PfxRcd   PfxSnt
192.168.161.131 4      60000        24        27        0    0    0 00:01:05     (Policy)        1

Total number of neighbors 1
eva# show bgp ipv4 statistics
BGP IPv4 Unicast RIB statistics (VRF default)
Total Advertisements          :            1
Total Prefixes                :            1
Average prefix length         :        32.00
Unaggregateable prefixes      :            1
Maximum aggregateable prefixes:            0
BGP Aggregate advertisements  :            0
Address space advertised      :            1
                  % announced :         0.00
                /8 equivalent :         0.00
               /24 equivalent :         0.00

Advertisements with paths     :            1
Longest AS-Path (hops)        :            0
Average AS-Path length (hops) :         0.00
Largest AS-Path (bytes)       :            0
Average AS-Path size (bytes)  :         0.00
Highest public ASN            :            0
eva#

Fixes: #7422
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-11-03 15:24:03 -05:00
Donald Sharp
39926498dd
Merge pull request #7421 from ton31337/fix/default-originate_attributes
bgpd: Respect match operations for default-originate, not only prefixes
2020-11-03 07:16:31 -05:00
David Schweizer
40ec3340be
bgpd: peer / peer group dampening profiles
Changes implement dampening profiles for peers and peer groups. This is
achieved by introducing the possibility to have multible existing
dampening configurations with their own sets of parameters and lists of
associated paths.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
Signed-off-by: David Schweizer <dschweizer@opensourcerouting.org>
2020-11-02 16:30:01 +01:00
Stephen Worley
e12affc15d bgpd: fix help for ipv6 under distance src command
We were missing the help docstring for IPV6 under the
distance src command in for bgp.

```
[root@alfred frr-2]# /usr/lib/frr/bgpd --log stdout --log-level debug
2020/10/30 16:02:26 BGP: Ran out of docstring while parsing '[no] distance (1-255) <A.B.C.D/M | X:X::X:X/M>$prefix [WORD$acl]'
2020/10/30 16:02:26 BGP: Ran out of docstring while parsing '[no] distance (1-255) <A.B.C.D/M | X:X::X:X/M>$prefix [WORD$acl]'
2020/10/30 16:02:26 BGP: Ran out of docstring while parsing '[no] distance (1-255) <A.B.C.D/M | X:X::X:X/M>$prefix [WORD$acl]'
2020/10/30 16:02:26 BGP: Ran out of docstring while parsing '[no] distance (1-255) <A.B.C.D/M | X:X::X:X/M>$prefix [WORD$acl]'
2020/10/30 16:02:26 BGP: Ran out of docstring while parsing '[no] distance (1-255) <A.B.C.D/M | X:X::X:X/M>$prefix [WORD$acl]'
```

Signed-off-by: Stephen Worley <sworley@nvidia.com>
2020-10-30 16:14:40 -04:00
Donatas Abraitis
f2ee6d5cd9 bgpd: Handle route-maps properly for default-originate route-map command
The problem is that only prefixes were handled and any other `match`
commands were ignored. Let's do not forget them as well.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2020-10-30 18:09:15 +02:00
Donald Sharp
02c671af40 *: Correct spelling stuff
Pretty obvious.  WE R SPELL GOOD

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-10-29 16:16:00 -04:00
Rafael Zalamena
7f2f38c62f
Merge pull request #7189 from maduri111/bgpd-conditional-adv
bgpd: conditional advertisement
2020-10-27 12:24:24 -03:00
Madhuri Kuruganti
e73c112ef9 bgpd: conditional advertisement - topotests-2
Signed-off-by: Madhuri Kuruganti <k.madhuri@samsung.com>
2020-10-27 16:15:36 +05:30
Madhuri Kuruganti
cf2ad4d8a6 bgpd: conditional advertisement - comments addressed
Signed-off-by: Madhuri Kuruganti <k.madhuri@samsung.com>
2020-10-27 16:15:36 +05:30
Madhuri Kuruganti
c385f82af3 bgpd: conditional advertisement - other match rules support
Sample Configuration with prefix-list and community match rules
---------------------------------------------------------------

R1 ------- R2(DUT) ------- R3

Router2# show running-config
Building configuration...

Current configuration:
!
frr version 7.6-dev-MyOwnFRRVersion
frr defaults traditional
hostname router
log file /var/log/frr/bgpd.log
log syslog informational
hostname Router2
service integrated-vtysh-config
!
debug bgp updates in
debug bgp updates out
!
debug route-map
!
ip route 20.20.0.0/16 blackhole
ipv6 route 2001:db8::200/128 blackhole
!
interface enp0s9
 ip address 10.10.10.2/24
!
interface enp0s10
 ip address 10.10.20.2/24
!
interface lo
 ip address 2.2.2.2/32
!
router bgp 2
 bgp log-neighbor-changes
 no bgp ebgp-requires-policy
 neighbor 10.10.10.1 remote-as 1
 neighbor 10.10.20.3 remote-as 3
 !
 address-family ipv4 unicast
  neighbor 10.10.10.1 soft-reconfiguration inbound
  neighbor 10.10.20.3 soft-reconfiguration inbound
  neighbor 10.10.20.3 advertise-map ADV-MAP non-exist-map EXIST-MAP
 exit-address-family
!
ip prefix-list DEFAULT seq 5 permit 1.1.1.5/32
ip prefix-list DEFAULT seq 10 permit 1.1.1.1/32
ip prefix-list EXIST seq 5 permit 10.10.10.10/32
ip prefix-list DEFAULT-ROUTE seq 5 permit 0.0.0.0/0
ip prefix-list IP1 seq 5 permit 10.139.224.0/20
ip prefix-list T2 seq 5 permit 1.1.1.5/32
!
bgp community-list standard DC-ROUTES seq 5 permit 64952:3008
bgp community-list standard DC-ROUTES seq 10 permit 64671:501
bgp community-list standard DC-ROUTES seq 15 permit 64950:3009
bgp community-list standard DEFAULT-ROUTE seq 5 permit 65013:200
!
route-map ADV-MAP permit 10
 match ip address prefix-list IP1
!
route-map ADV-MAP permit 20
 match community DC-ROUTES
!
route-map EXIST-MAP permit 10
 match community DEFAULT-ROUTE
 match ip address prefix-list DEFAULT-ROUTE
!
line vty
!
end
Router2#

Router2# show ip bgp 0.0.0.0
BGP routing table entry for 0.0.0.0/0
Paths: (1 available, best #1, table default)
  Advertised to non peer-group peers:
  10.10.10.1 10.10.20.3
  1
    10.10.10.1 from 10.10.10.1 (10.139.224.1)
      Origin IGP, metric 0, valid, external, best (First path received)
      Community: 64848:3011 65011:200 65013:200
      Last update: Tue Oct  6 02:39:42 2020
Router2#

Sample output with non-exist-map when default route present in table
--------------------------------------------------------------------
Router2# show ip bgp
BGP table version is 4, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 0.0.0.0/0        10.10.10.1               0             0 1 i
*> 1.1.1.1/32       10.10.10.1               0             0 1 i
*> 1.1.1.5/32       10.10.10.1               0             0 1 i
*> 10.139.224.0/20  10.10.10.1               0             0 1 ?

Displayed  4 routes and 4 total paths

Router2# show ip bgp neighbors 10.10.20.3 advertised-routes
BGP table version is 4, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 0.0.0.0/0        0.0.0.0                                0 1 i
*> 1.1.1.5/32       0.0.0.0                                0 1 i   		<<<<<<<<<  non-exist-map : 0.0.0.0/0 is present so, 10.139.224.0/20 not advertised

Total number of prefixes 2

Sample output with non-exist-map when default route not present in table
------------------------------------------------------------------------
Router2# show ip bgp
BGP table version is 5, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 1.1.1.1/32       10.10.10.1               0             0 1 i
*> 1.1.1.5/32       10.10.10.1               0             0 1 i
*> 10.139.224.0/20  10.10.10.1               0             0 1 ?

Displayed  3 routes and 3 total paths
Router2#
Router2#
Router2# show ip bgp neighbors 10.10.20.3 advertised-routes
BGP table version is 5, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 1.1.1.1/32       0.0.0.0                                0 1 i
*> 1.1.1.5/32       0.0.0.0                                0 1 i
*> 10.139.224.0/20  0.0.0.0                                0 1 ?                <<<<<<<<<  non-exist-map : 0.0.0.0/0 is not present so, 10.139.224.0/20 advertised

Total number of prefixes 3
Router2#

Sample output with exist-map when default route present in table
--------------------------------------------------------------------
Router2# show ip bgp
BGP table version is 8, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 0.0.0.0/0        10.10.10.1               0             0 1 i
*> 1.1.1.1/32       10.10.10.1               0             0 1 i
*> 1.1.1.5/32       10.10.10.1               0             0 1 i
*> 10.139.224.0/20  10.10.10.1               0             0 1 ?

Displayed  4 routes and 4 total paths
Router2#
Router2#
Router2#
Router2#
Router2# show ip bgp neighbors 10.10.20.3 advertised-routes
BGP table version is 8, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 0.0.0.0/0        0.0.0.0                                0 1 i
*> 1.1.1.1/32       0.0.0.0                                0 1 i
*> 1.1.1.5/32       0.0.0.0                                0 1 i
*> 10.139.224.0/20  0.0.0.0                                0 1 ?		<<<<<<<<<  exist-map : 0.0.0.0/0 is present so, 10.139.224.0/20 advertised

Total number of prefixes 4
Router2#

Sample output with exist-map when default route not present in table
--------------------------------------------------------------------
Router2# show ip bgp
BGP table version is 9, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 1.1.1.1/32       10.10.10.1               0             0 1 i
*> 1.1.1.5/32       10.10.10.1               0             0 1 i
*> 10.139.224.0/20  10.10.10.1               0             0 1 ?

Displayed  3 routes and 3 total paths
Router2#
Router2#
Router2#
Router2# show ip bgp neighbors 10.10.20.3 advertised-routes
BGP table version is 9, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 1.1.1.5/32       0.0.0.0                                0 1 i		<<<<<<<<<  exist-map : 0.0.0.0/0 is not present so, 10.139.224.0/20 not advertised

Total number of prefixes 1
Router2#

Signed-off-by: Madhuri Kuruganti <k.madhuri@samsung.com>
2020-10-27 16:15:36 +05:30
Madhuri Kuruganti
c5aec50b81 bgpd: conditional advertisement - with route-map filter
Sample configuration along with route-map filter
------------------------------------------------
Router2# show running-config
Building configuration...

Current configuration:
!
frr version 7.6-dev-MyOwnFRRVersion
frr defaults traditional
hostname router
log file /var/log/frr/bgpd.log
log syslog informational
hostname Router2
service integrated-vtysh-config
!
debug bgp updates in
debug bgp updates out
!
debug route-map
!
ip route 200.200.0.0/16 blackhole
ipv6 route 2001:db8::200/128 blackhole
!
interface enp0s9
 ip address 10.10.10.2/24
!
interface enp0s10
 ip address 10.10.20.2/24
!
interface lo
 ip address 2.2.2.2/24
 ipv6 address 2001:db8::2/128
!
router bgp 2
 bgp log-neighbor-changes
 no bgp ebgp-requires-policy
 neighbor 10.10.10.1 remote-as 1
 neighbor 10.10.20.3 remote-as 3
 !
 address-family ipv4 unicast
  network 2.2.2.0/24
  network 200.200.0.0/16
  neighbor 10.10.10.1 soft-reconfiguration inbound
  neighbor 10.10.10.1 route-map RMAP_PERMIT_100 out
  neighbor 10.10.10.1 advertise-map ADVERTISE non-exist-map CONDITION
  neighbor 10.10.20.3 soft-reconfiguration inbound
 exit-address-family
 !
 address-family ipv6 unicast
  network 2001:db8::2/128
  network 2001:db8::200/128
  neighbor 10.10.10.1 activate
  neighbor 10.10.10.1 soft-reconfiguration inbound
  neighbor 10.10.10.1 route-map CONDITION_6 out
  neighbor 10.10.10.1 advertise-map ADVERTISE_6 non-exist-map CONDITION_6
  neighbor 10.10.20.3 activate
  neighbor 10.10.20.3 soft-reconfiguration inbound
 exit-address-family
!
access-list CONDITION seq 5 permit 3.3.3.0/24
access-list ADVERTISE seq 6 permit 200.200.0.0/16
access-list ADVERTISE seq 7 permit 20.20.0.0/16
access-list ADVERTISE seq 5 permit 2.2.2.0/24
access-list RMAP_PERMIT_100 seq 4 permit 100.100.0.0/16
!
ipv6 access-list ADVERTISE_6 seq 5 permit 2001:db8::2/128
ipv6 access-list CONDITION_6 seq 5 permit 2001:db8::3/128
!
route-map ADVERTISE permit 10
 match ip address ADVERTISE
!
route-map CONDITION permit 10
 match ip address CONDITION
!
route-map ADVERTISE_6 permit 10
 match ipv6 address ADVERTISE_6
!
route-map CONDITION_6 permit 10
 match ipv6 address CONDITION_6
!
route-map RMAP_PERMIT_100 permit 10
 match ip address RMAP_PERMIT_100
!
line vty
!
end

Sample output when non-exist-map prefixes present in BGP table
--------------------------------------------------------------
Router2# show ip bgp all wide

For address family: IPv4 Unicast
BGP table version is 5, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.0/24                                   10.10.10.1                                     0             0 1 i
*> 2.2.2.0/24                                   0.0.0.0                                        0         32768 i
*> 3.3.3.0/24                                   10.10.20.3                                     0             0 3 i
*> 100.100.0.0/16                               10.10.20.3                                     0             0 3 i
*> 200.200.0.0/16                               0.0.0.0                                        0         32768 i

Displayed  5 routes and 5 total paths

For address family: IPv6 Unicast
BGP table version is 4, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              fe80::a00:27ff:fecb:ad57                       0             0 1 i
*> 2001:db8::2/128                              ::                                             0         32768 i
*> 2001:db8::3/128                              fe80::a00:27ff:fe76:6738                       0             0 3 i
*> 2001:db8::200/128                            ::                                             0         32768 i

Displayed  4 routes and 4 total paths
Router2#
Router2#
Router2#
Router2#
Router2# show ip bgp all neighbors 10.10.10.1 advertised-routes wide

For address family: IPv4 Unicast
BGP table version is 5, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 100.100.0.0/16                               0.0.0.0                                                      0 3 i

Total number of prefixes 1

For address family: IPv6 Unicast
BGP table version is 4, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::3/128                              ::                                                           0 3 i

Total number of prefixes 1
Router2#

Sample output when non-exist-map prefixes not present in BGP table
------------------------------------------------------------------
Router2# show ip bgp all wide

For address family: IPv4 Unicast
BGP table version is 6, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.0/24                                   10.10.10.1                                     0             0 1 i
*> 2.2.2.0/24                                   0.0.0.0                                        0         32768 i
*> 100.100.0.0/16                               10.10.20.3                                     0             0 3 i
*> 200.200.0.0/16                               0.0.0.0                                        0         32768 i

Displayed  4 routes and 4 total paths

For address family: IPv6 Unicast
BGP table version is 5, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              fe80::a00:27ff:fecb:ad57                       0             0 1 i
*> 2001:db8::2/128                              ::                                             0         32768 i
*> 2001:db8::200/128                            ::                                             0         32768 i

Displayed  3 routes and 3 total paths
Router2#

Router2# show ip bgp all neighbors 10.10.10.1 advertised-routes wide

For address family: IPv4 Unicast
BGP table version is 6, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2.2.2.0/24                                   0.0.0.0                                        0         32768 i
*> 100.100.0.0/16                               0.0.0.0                                                      0 3 i
*> 200.200.0.0/16                               0.0.0.0                                        0         32768 i

Total number of prefixes 3

For address family: IPv6 Unicast
BGP table version is 5, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::2/128                              ::                                             0         32768 i

Total number of prefixes 1
Router2#

Signed-off-by: Madhuri Kuruganti <k.madhuri@samsung.com>
2020-10-27 16:15:36 +05:30
Madhuri Kuruganti
7f7940e6bf bgpd: conditional advertisement
Implemented as per the feature description given in the source link.

Descriprion:
The BGP conditional advertisement feature uses the non-exist-map or exist-map
and the advertise-map keywords of the neighbor advertise-map command in order
to track routes by the route prefix.

non-exist-map :
If a route prefix is not present in output of the non-exist-map command, then
the route specified by the advertise-map command is announced.

exist-map :
If a route prefix is present in output of the exist-map command, then the route
specified by the advertise-map command is announced.

The conditional BGP announcements are sent in addition to the normal
announcements that a BGP router sends to its peers.

The conditional advertisement process is triggered by the BGP scanner process,
which runs every 60 seconds. This means that the maximum time for the conditional
advertisement to take effect is 60 seconds. The conditional advertisement can take
effect sooner, depending on when the tracked route is removed from the BGP table
and when the next instance of the BGP scanner occurs.

Sample Configuration on DUT
---------------------------
Router2# show running-config
Building configuration...

Current configuration:
!
frr version 7.6-dev-MyOwnFRRVersion
frr defaults traditional
hostname router
log file /var/log/frr/bgpd.log
log syslog informational
hostname Router2
service integrated-vtysh-config
!
debug bgp updates in
debug bgp updates out
!
debug route-map
!
ip route 200.200.0.0/16 blackhole
ipv6 route 2001:db8::200/128 blackhole
!
interface enp0s9
 ip address 10.10.10.2/24
!
interface enp0s10
 ip address 10.10.20.2/24
!
interface lo
 ip address 2.2.2.2/24
 ipv6 address 2001:db8::2/128
!
router bgp 2
 bgp log-neighbor-changes
 no bgp ebgp-requires-policy
 neighbor 10.10.10.1 remote-as 1
 neighbor 10.10.20.3 remote-as 3
 !
 address-family ipv4 unicast
  network 2.2.2.0/24
  network 200.200.0.0/16
  neighbor 10.10.10.1 soft-reconfiguration inbound
  neighbor 10.10.10.1 advertise-map ADVERTISE non-exist-map CONDITION
  neighbor 10.10.20.3 soft-reconfiguration inbound
 exit-address-family
 !
 address-family ipv6 unicast
  network 2001:db8::2/128
  network 2001:db8::200/128
  neighbor 10.10.10.1 activate
  neighbor 10.10.10.1 soft-reconfiguration inbound
  neighbor 10.10.10.1 advertise-map ADVERTISE_6 non-exist-map CONDITION_6
  neighbor 10.10.20.3 activate
  neighbor 10.10.20.3 soft-reconfiguration inbound
 exit-address-family
!
access-list CONDITION seq 5 permit 3.3.3.0/24
access-list ADVERTISE seq 5 permit 2.2.2.0/24
access-list ADVERTISE seq 6 permit 200.200.0.0/16
access-list ADVERTISE seq 7 permit 20.20.0.0/16
!
ipv6 access-list ADVERTISE_6 seq 5 permit 2001:db8::2/128
ipv6 access-list CONDITION_6 seq 5 permit 2001:db8::3/128
!
route-map ADVERTISE permit 10
 match ip address ADVERTISE
!
route-map CONDITION permit 10
 match ip address CONDITION
!
route-map ADVERTISE_6 permit 10
 match ipv6 address ADVERTISE_6
!
route-map CONDITION_6 permit 10
 match ipv6 address CONDITION_6
!
line vty
!
end
Router2#

Withdraw when non-exist-map prefixes present in BGP table:
----------------------------------------------------------
Router2# show ip bgp all wide

For address family: IPv4 Unicast
BGP table version is 8, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.0/24                                   10.10.10.1                                     0             0 1 i
*> 2.2.2.0/24                                   0.0.0.0                                        0         32768 i
*> 3.3.3.0/24                                   10.10.20.3                                     0             0 3 i
*> 200.200.0.0/16                               0.0.0.0                                        0         32768 i

Displayed  4 routes and 4 total paths

For address family: IPv6 Unicast
BGP table version is 8, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              fe80::a00:27ff:fecb:ad57                       0             0 1 i
*> 2001:db8::2/128                              ::                                             0         32768 i
*> 2001:db8::3/128                              fe80::a00:27ff:fe76:6738                       0             0 3 i
*> 2001:db8::200/128                            ::                                             0         32768 i

Displayed  4 routes and 4 total paths
Router2#

Router2# show ip bgp neighbors 10.10.10.1
BGP neighbor is 10.10.10.1, remote AS 1, local AS 2, external link

!--- Output suppressed.

 For address family: IPv4 Unicast
  Update group 9, subgroup 5
  Packet Queue length 0
  Inbound soft reconfiguration allowed
  Community attribute sent to this neighbor(all)
  Condition NON_EXIST, Condition-map *CONDITION, Advertise-map *ADVERTISE, status: Withdraw
  1 accepted prefixes

 For address family: IPv6 Unicast
  Update group 10, subgroup 6
  Packet Queue length 0
  Inbound soft reconfiguration allowed
  Community attribute sent to this neighbor(all)
  Condition NON_EXIST, Condition-map *CONDITION_6, Advertise-map *ADVERTISE_6, status: Withdraw
  1 accepted prefixes

!--- Output suppressed.

Router2#

Here 2.2.2.0/24 & 200.200.0.0/16 (prefixes in advertise-map) are withdrawn
by conditional advertisement scanner as the prefix(3.3.3.0/24) specified
by non-exist-map is present in BGP table.

Router2# show ip bgp all neighbors 10.10.10.1 advertised-routes wide

For address family: IPv4 Unicast
BGP table version is 8, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.0/24                                   0.0.0.0                                                      0 1 i
*> 3.3.3.0/24                                   0.0.0.0                                                      0 3 i

Total number of prefixes 2

For address family: IPv6 Unicast
BGP table version is 8, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              ::                                                           0 1 i
*> 2001:db8::3/128                              ::                                                           0 3 i
*> 2001:db8::200/128                            ::                                             0         32768 i

Total number of prefixes 3
Router2#

Advertise when non-exist-map prefixes not present in BGP table:
---------------------------------------------------------------
After Removing 3.3.3.0/24 (prefix present in non-exist-map),
2.2.2.0/24 & 200.200.0.0/16 (prefixes present in advertise-map) are advertised

Router2# show ip bgp all wide

For address family: IPv4 Unicast
BGP table version is 9, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.0/24                                   10.10.10.1                                     0             0 1 i
*> 2.2.2.0/24                                   0.0.0.0                                        0         32768 i
*> 200.200.0.0/16                               0.0.0.0                                        0         32768 i

Displayed  3 routes and 3 total paths

For address family: IPv6 Unicast
BGP table version is 9, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              fe80::a00:27ff:fecb:ad57                       0             0 1 i
*> 2001:db8::2/128                              ::                                             0         32768 i
*> 2001:db8::200/128                            ::                                             0         32768 i

Displayed  3 routes and 3 total paths
Router2#

Router2# show ip bgp neighbors 10.10.10.1

!--- Output suppressed.

 For address family: IPv4 Unicast
  Update group 9, subgroup 5
  Packet Queue length 0
  Inbound soft reconfiguration allowed
  Community attribute sent to this neighbor(all)
  Condition NON_EXIST, Condition-map *CONDITION, Advertise-map *ADVERTISE, status: Advertise
  1 accepted prefixes

 For address family: IPv6 Unicast
  Update group 10, subgroup 6
  Packet Queue length 0
  Inbound soft reconfiguration allowed
  Community attribute sent to this neighbor(all)
  Condition NON_EXIST, Condition-map *CONDITION_6, Advertise-map *ADVERTISE_6, status: Advertise
  1 accepted prefixes

!--- Output suppressed.

Router2#
Router2# show ip bgp all neighbors 10.10.10.1 advertised-routes wide

For address family: IPv4 Unicast
BGP table version is 9, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.0/24                                   0.0.0.0                                                      0 1 i
*> 2.2.2.0/24                                   0.0.0.0                                        0         32768 i
*> 200.200.0.0/16                               0.0.0.0                                        0         32768 i

Total number of prefixes 3

For address family: IPv6 Unicast
BGP table version is 9, local router ID is 2.2.2.2, vrf id 0
Default local pref 100, local AS 2
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              ::                                                           0 1 i
*> 2001:db8::2/128                              ::                                             0         32768 i
*> 2001:db8::200/128                            ::                                             0         32768 i

Total number of prefixes 3
Router2#

Signed-off-by: Madhuri Kuruganti <k.madhuri@samsung.com>
2020-10-27 16:15:36 +05:30
Chirag Shah
90e21f3535 bgpd: add nb support for suppress-map in aggregate cmd
Signed-off-by: Chirag Shah <chirag@nvidia.com>
2020-10-26 08:57:15 -07:00
Chirag Shah
8cc7152af8 bgpd: convert distance bgp source cmd to defpy
Consolidate v4/v6 prefix with/without acl name distance source
command to DEFPY.

Signed-off-by: Chirag Shah <chirag@nvidia.com>
2020-10-26 08:57:15 -07:00
Chirag Shah
d9ce51130b bgpd: convert bgp dampening cli to defpy
Signed-off-by: Chirag Shah <chirag@nvidia.com>
2020-10-26 08:57:15 -07:00
Chirag Shah
fa423774ff bgpd: add match-med nb support in aggregate cmd
Signed-off-by: Chirag Shah <chirag@nvidia.com>
2020-10-26 08:57:15 -07:00
Chirag Shah
37a87b8f98 bgpd: convert addr-family clis to transactional clis
Convert IPv4 and IPv6 unicast address family clis
to transactional clis and implementation of
northbound callbacks.

Signed-off-by: Chirag Shah <chirag@nvidia.com>
2020-10-26 08:57:15 -07:00
Mark Stapp
cbd492990d
Merge pull request #7194 from qlyoung/tracing
Tracing
2020-10-24 16:50:35 -04:00
Renato Westphal
7281a37c8b
Merge pull request #7377 from donaldsharp/bgp_static_leak
bgpd: Bgp static routes memory leak
2020-10-24 15:29:34 -03:00
Quentin Young
c7bb4f006b lib, bgpd: convert lttng tracepoints to frrtrace()
- tracepoint() -> frrtrace()
- tracelog() -> frrtracelog()
- tracepoint_enabled() -> frrtrace_enabled()

Also removes copypasta'd #ifdefs for those LTTng macros, those are
handled in lib/trace.h

Signed-off-by: Quentin Young <qlyoung@nvidia.com>
2020-10-23 15:13:51 -04:00
Quentin Young
6401252f7f bgpd: route processing tracepoints
Add tracepoints for route process, input filter and output filter.

Signed-off-by: Quentin Young <qlyoung@nvidia.com>
2020-10-23 15:13:51 -04:00
Mark Stapp
5047884528 *: unify thread/event cancel macros
Replace all lib/thread cancel macros, use thread_cancel()
everywhere. Only the THREAD_OFF macro and thread_cancel() api are
supported. Also adjust thread_cancel_async() to NULL caller's pointer (if
present).

Signed-off-by: Mark Stapp <mjs@voltanet.io>
2020-10-23 12:16:52 -04:00
Donald Sharp
811c6797b6 bgpd: Bgp static routes memory leak
When using MPLS_VPN/EVPN ( or really any two level table/route data structure setup )
FRR is leaking memory on shutdown:

eva# conf
eva(config)# router bgp 329
eva(config-router)# address-family ipv4 vpn
eva(config-router-af)# network 5.6.7.8/32 rd 44:55 label 3293
eva(config-router-af)# end
eva# exit
sharpd@eva ~/frr_coverity (master)> ps -ef | grep frr
root     1186423   10793  0 07:51 pts/1    00:00:00 sudo /usr/lib/frr/zebra --log stdout --log-level debug
frr      1186425 1186423  0 07:51 pts/1    00:00:00 /usr/lib/frr/zebra --log stdout --log-level debug
root     1263168  491694  0 11:10 pts/20   00:00:00 sudo valgrind --leak-check=full /usr/lib/frr/bgpd --log stdout --log-level debug
frr      1263169 1263168 22 11:10 pts/20   00:00:04 /usr/bin/valgrind.bin --leak-check=full /usr/lib/frr/bgpd --log stdout --log-level debug
sharpd   1263214  845829  0 11:10 pts/9    00:00:00 grep --color=auto frr
sharpd@eva ~/frr_coverity (master)> sudo kill -SIGTERM 1263169
sharpd@eva ~/frr_coverity (master)>

gives us this:

==1263169== 304 (40 direct, 264 indirect) bytes in 1 blocks are definitely lost in loss record 61 of 78
==1263169==    at 0x483AB65: calloc (vg_replace_malloc.c:760)
==1263169==    by 0x48DD878: qcalloc (memory.c:110)
==1263169==    by 0x5116D5: bgp_table_init (bgp_table.c:110)
==1263169==    by 0x4EB5C4: bgp_static_set_safi (bgp_route.c:5927)
==1263169==    by 0x4C3382: vpnv4_network (bgp_mplsvpn.c:1911)
==1263169==    by 0x489FBEC: cmd_execute_command_real (command.c:916)
==1263169==    by 0x489F7CB: cmd_execute_command (command.c:976)
==1263169==    by 0x489FD04: cmd_execute (command.c:1138)
==1263169==    by 0x493AF73: vty_command (vty.c:517)
==1263169==    by 0x493AA07: vty_execute (vty.c:1282)
==1263169==    by 0x4939B54: vtysh_read (vty.c:2115)
==1263169==    by 0x492E63C: thread_call (thread.c:1585)

The bgp_static_delete function was not unlocking the right bgp_dest.  This
problem goes away after fixing this.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-10-23 11:22:01 -04:00
Donatas Abraitis
90a65457d1
Merge pull request #7345 from opensourcerouting/bgp-aggr-suppress
bgpd: aggregate-address suppress-map
2020-10-23 15:02:57 +03:00
Rafael Zalamena
6ba6de7e17 bgpd,topotests: log route suppression messages
To see the messages activate the BGP debug: `debug bgp updates`.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
2020-10-22 13:52:06 -03:00
Rafael Zalamena
4056a5f6a5 bgpd: route suppression refactory
Instead of just counting the route suppressions, keep a reference for
all aggregations that are doing it. It should help the with the
following problems:

- Which aggregation suppressed the route.
- Double suppression
- Double unsuppression
- Avoids calling `bgp_process` if already suppressed/unsuppressed.
- Easier code maintenance and understanding

This also fixes a crash when modifying a route map that is
associated with a working aggregate-address.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
2020-10-22 13:52:00 -03:00
Donald Sharp
84de5a245a
Merge pull request #7343 from ton31337/fix/prefix2str_to_pFX
:* Convert prefix2str to %pFX
2020-10-22 08:07:57 -04:00
Donatas Abraitis
2dbe669bdf :* Convert prefix2str to %pFX
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2020-10-22 09:07:41 +03:00
Rafael Zalamena
365ab2e74b bgpd: aggregate address suppress more specific
Add new aggregate-address option to selectively suppress routes based
on route map results.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
2020-10-21 21:31:49 -03:00
Donald Sharp
b6c386bbbd bgpd: Make the process_queue per bgp process
We currently have a global process queue for handling route
updates in bgp.  This is fine, in general, except there are
places and times where we plug the queue for no new work
during certain peer states of bgp update delay.  If we
happen to be processing multiple bgp instances on startup
why do we want to stop processing in vrf A when vrf B
is in a bit of a pickle?

Also this separation will allow us to start forward thinking
about how to fully integrate pthreads into route processing
in bgp.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-10-21 15:34:47 -04:00
Donald Sharp
cd7f9b1711
Merge pull request #7323 from ton31337/fix/inet_ntoa_to_pFX_master
bgpd: Convert inet_ntoa to %pI4
2020-10-20 09:10:24 -04:00
Donatas Abraitis
23d0a75356 bgpd: Convert inet_ntoa to %pI4/inet_ntop
Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2020-10-18 11:22:30 +03:00
Donald Sharp
c10e14e96d *: Create/Use accessor functions for lock count
Create appropriate accessor functions for the rn->lock
data.  We should be accessing this data through accessor
functions since it is private data to the data structure.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-10-17 13:39:10 -04:00
Donatas Abraitis
0dc8647094
Merge pull request #7306 from donaldsharp/bgp_dest_print
Bgp dest print
2020-10-17 20:21:52 +03:00
Donald Sharp
8228a9a7a5 bgpd: Convert to %pFX or %pBD where possible
Search and destroy places where we used prefix2str
that could be replaced with %pFX or %pBD in bgpd.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-10-17 08:52:35 -04:00
David Lamparter
56ca3b5b3a bgpd: add %pBD for printing struct bgp_dest *
`%pRN` is not appropriate anymore.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2020-10-17 08:52:35 -04:00
Pat Ruddy
f137734bb4 bgpd: replace bgp_evpn_route2str with prefix2str
Remove bgp_evpn_route2str and replace calls with prefix2str

Signed-off-by: Pat Ruddy <pat@voltanet.io>
2020-10-16 11:54:30 +01:00
Trey Aspelund
7daf25a3a8 bgpd: fix show bgp neighbor routes for labeled-unicast
bgp_show_neighbor_route() was rewriting safi from LU to uni
before checking if the peer was enabled for LU.  This resulted
in the peer's address-family check looking for unicast, which
would always fail for LU peers since unicast + LU are
mutually-exclusive AFIs.
This moves this safi reassignment after the peer AFI check,
ensuring that the peer's address-family check looks for LU
while the call to bgp_show() still uses uni.

-- highlights from manual testing

config:

router bgp 2
 neighbor 1.1.1.1 remote-as external
 neighbor 1.1.1.1 disable-connected-check
 neighbor 1.1.1.1 update-source 2.2.2.2
 !
 address-family ipv4 unicast
  no neighbor 1.1.1.1 activate
 exit-address-family
 !
 address-family ipv4 labeled-unicast
  neighbor 1.1.1.1 activate
 exit-address-family

before:

spine01# show bgp ipv4 unicast neighbors 1.1.1.1 routes
% No such neighbor or address family
spine01# show bgp ipv4 labeled-unicast neighbors 1.1.1.1 routes
% No such neighbor or address family

after:

spine01# show bgp ipv4 unicast neighbors 1.1.1.1 routes
% No such neighbor or address family
spine01# show bgp ipv4 label neighbors 1.1.1.1 routes
BGP table version is 1, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, = multipath,
              i internal, r RIB-failure, S Stale, R Removed
Origin codes: i - IGP, e - EGP, ? - incomplete
   Network          Next Hop            Metric LocPrf Weight Path
*> 11.11.11.11/32   1.1.1.1                  0             0 1 i
Displayed  1 routes and 1 total paths

Signed-off-by: Trey Aspelund <taspelund@cumulusnetworks.com>
2020-10-12 16:19:44 -04:00
Donald Sharp
b1823b69f6 bgpd: Correctly calculate threshold being reached
if (pcout > (pcount * peer->max_threshold[afi][safi] / 100 ))
is always true.  So the very first route received will always
trigger the warning.  We actually want the warning to happen
when we hit the threshold.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-10-12 10:36:37 -04:00
Donald Sharp
33c6e933c9 bgpd: allow bestpath to handle mutliple locally-originated paths
Current code in bgp bestpath selection would accept the newest
locally originated path as the best path.  Making the selection
non-deterministic.  Modify the code to always come to the
same bestpath conclusion when you have multiple locally originated
paths in bestpath selection.

Before:

eva# conf
eva(config)# router bgp 323
eva(config-router)# address-family ipv4 uni
eva(config-router-af)# redistribute connected
eva(config-router-af)# network 192.168.161.0/24
eva(config-router-af)# do show bgp ipv4 uni 192.168.161.0
BGP routing table entry for 192.168.161.0/24
Paths: (2 available, best #1, table default)
  Not advertised to any peer
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin IGP, metric 0, weight 32768, valid, sourced, local, bestpath-from-AS Local, best (Origin)
      Last update: Wed Sep 16 15:03:03 2020
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin incomplete, metric 0, weight 32768, valid, sourced
      Last update: Wed Sep 16 15:02:52 2020
eva(config-router-af)# no redistribute connected
eva(config-router-af)# do show bgp ipv4 uni 192.168.161.0
BGP routing table entry for 192.168.161.0/24
Paths: (1 available, best #1, table default)
  Not advertised to any peer
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin IGP, metric 0, weight 32768, valid, sourced, local, bestpath-from-AS Local, best (First path received)
      Last update: Wed Sep 16 15:03:03 2020
eva(config-router-af)#  redistribute connected
eva(config-router-af)# do show bgp ipv4 uni 192.168.161.0
BGP routing table entry for 192.168.161.0/24
Paths: (2 available, best #2, table default)
  Not advertised to any peer
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin incomplete, metric 0, weight 32768, valid, sourced
      Last update: Wed Sep 16 15:03:32 2020
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin IGP, metric 0, weight 32768, valid, sourced, local, bestpath-from-AS Local, best (Origin)
      Last update: Wed Sep 16 15:03:03 2020
eva(config-router-af)#

Notice the route choosen depends on order received

Fixed behavior:

eva# conf
eva(config)# router bgp 323
eva(config-router)# address-family ipv4 uni
eva(config-router-af)# redistribute connected
eva(config-router-af)# network 192.168.161.0/24
eva(config-router-af)# do show bgp ipv4 uni 192.168.161.0
BGP routing table entry for 192.168.161.0/24
Paths: (2 available, best #1, table default)
  Not advertised to any peer
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin IGP, metric 0, weight 32768, valid, sourced, local, bestpath-from-AS Local, best (Origin)
      Last update: Wed Sep 16 15:03:03 2020
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin incomplete, metric 0, weight 32768, valid, sourced
      Last update: Wed Sep 16 15:02:52 2020
eva(config-router-af)# no redistribute connected
eva(config-router-af)# do show bgp ipv4 uni 192.168.161.0
BGP routing table entry for 192.168.161.0/24
Paths: (1 available, best #1, table default)
  Not advertised to any peer
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin IGP, metric 0, weight 32768, valid, sourced, local, bestpath-from-AS Local, best (First path received)
      Last update: Wed Sep 16 15:03:03 2020
eva(config-router-af)#  redistribute connected
eva(config-router-af)# do show bgp ipv4 uni 192.168.161.0
BGP routing table entry for 192.168.161.0/24
Paths: (2 available, best #2, table default)
  Not advertised to any peer
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin incomplete, metric 0, weight 32768, valid, sourced
      Last update: Wed Sep 16 15:03:32 2020
  Local
    0.0.0.0(eva) from 0.0.0.0 (192.168.161.245)
      Origin IGP, metric 0, weight 32768, valid, sourced, local, bestpath-from-AS Local, best (Origin)
      Last update: Wed Sep 16 15:03:03 2020
eva(config-router-af)#

Ticket: CM-31490
Found-by: Trey Aspelund <taspelund@nvidia.com>
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-10-09 16:01:32 -04:00
Rafael Zalamena
6aabb15dd7 bgpd: aggregate address matching-MED-only
Add code to handle MED matching:

- When MED matches act as normal.

- When MED doesn't match do the following:

  * Uninstall the aggregate route
  * Unsuppress routes (if using summary-only)

- When MED didn't match, but now matches:

  * Install the aggregate route
  * Suppress all routes (if using summary-only)

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
2020-10-06 06:42:12 -03:00
Rafael Zalamena
554b3b1021 bgpd: simplify aggregate address commands
Use `DEFPY` instead of `DEFUN` to remove duplicated code.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
2020-10-04 21:34:36 -03:00
Donald Sharp
e8442016a8 bgpd: Allow bgp static routes to use /32's
If you are including a network statement of a /32
then the current bgp martian checks will match the /32
together.

Problem:
!
router bgp 3235
 neighbor 192.168.161.2 remote-as external
 neighbor 192.168.161.131 remote-as external
 !
 address-family ipv4 unicast
  network 10.10.3.11/32
  network 192.168.161.0/24
  no neighbor 192.168.161.2 activate
  neighbor 192.168.161.2 route-map BLUE in
 exit-address-family
!
eva# show bgp ipv4 uni
BGP table version is 1, local router ID is 10.10.3.11, vrf id 0
Default local pref 100, local AS 3235
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete
   Network          Next Hop            Metric LocPrf Weight Path
   10.10.3.11/32    0.0.0.0(eva)             0         32768 i
*> 192.168.161.0/24 0.0.0.0(eva)             0         32768 i
Displayed  2 routes and 2 total paths
eva# show bgp import-check-table
Current BGP import check cache:
 192.168.161.0 valid [IGP metric 0], #paths 1
  if enp39s0
  Last update: Fri Sep 25 08:00:42 2020
 10.10.3.11 valid [IGP metric 0], #paths 1
  if lo
  Last update: Fri Sep 25 08:00:42 2020
eva# show bgp ipv4 uni summ
BGP router identifier 10.10.3.11, local AS number 3235 vrf-id 0
BGP table version 1
RIB entries 3, using 576 bytes of memory
Peers 1, using 21 KiB of memory
Neighbor                 V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down State/PfxRcd   PfxSnt
janelle(192.168.161.131) 4      60000        69        70        0    0    0 00:03:21            0        1
Total number of neighbors 1

When we are deciding that a nexthop is valid there is not much point in checking
that a static route has a martian nexthop or not, since we self derived it already.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
2020-09-25 09:58:28 -04:00
vivek
637e5ba492 bgpd: Define function to check if performing graceful shutdown
Signed-off-by: Vivek Venkatraman <vivek@nvidia.com>
2020-09-19 12:50:46 -07:00
Donatas Abraitis
a68b613b09
Merge pull request #6827 from maduri111/bgpd-show-bgp-all
bgpd: show <ip> bgp <ipv4/ipv6> all
2020-09-10 15:11:14 +03:00
Madhuri Kuruganti
96f3485cdb bgpd: show < ip > bgp < ipv4 | ipv6 > all
This commit
=> provides "all" option, to display the table entries for all(or specific) AFI/SAFIs.
=> Also introduced "show_flags" to avoid passing multiple arguments(use_json, wide, all)
   to functions

1. show <ip> bgp <ipv4/ipv6> <all> <wide|json>
2. show <ip> bgp <ipv4/ipv6> <all> summary <json>
3. show <ip> bgp <ipv4/ipv6> <all> cidr-only <wide|json>
4. show <ip> bgp <ipv4/ipv6> <all> community <wide|json>
5. show <ip> bgp <ipv4/ipv6> <all> dampening <dampened-paths|flap-statistics|parameters> <wide|json>
6. show <ip> bgp <ipv4/ipv6> <all> neighbors A.B.C.D advertised-routes|filtered-routes|received-routes <wide|json>

show bgp all summary            == show ip bgp all summary      => output is same => display entries for all AFIs and for each SAFI.
show bgp ipv4 all summary       == show ip bgp ipv4 all summary => output is same => display entries for each SAFI in AFI_IP
show bgp ipv6 all summary       == show ip bgp ipv6 all summart => output is same => display entries for each SAFI in AFI_IP6

similarly for all other commands.

sample output
1. show <ip> bgp <ipv4/ipv6> <all> <wide|json>

router# show ip bgp all wide

For address family: IPv4 Unicast

BGP table version is 6, local router ID is 1.1.1.1, vrf id 0
Default local pref 100, local AS 1
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.1/32                                   0.0.0.0                                        0         32768 ?
*>i2.2.2.2/32                                   192.168.56.152                                 0    100      0 ?
* i10.0.2.0/24                                  192.168.56.152                                 0    100      0 ?
*>                                              0.0.0.0                                        0         32768 ?
* i192.168.56.0/24                              192.168.56.152                                 0    100      0 ?
*>                                              0.0.0.0                                        0         32768 ?
*>i192.168.123.245/32                           192.168.56.152                                 0    100      0 ?
*>i192.168.223.245/32                           192.168.56.152                                 0    100      0 ?

Displayed  6 routes and 8 total paths

For address family: IPv6 Unicast

BGP table version is 3, local router ID is 1.1.1.1, vrf id 0
Default local pref 100, local AS 1
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              ::                                             0         32768 ?
*>i2001:db8::2/128                              fe80::a00:27ff:fefc:2aa                        0    100      0 ?
*> 2001:db8:85a3::8a2e:370:7334/128             ::                                             0         32768 ?

Displayed  3 routes and 3 total paths
router#

router# show ip bgp ipv4 all wide

For address family: IPv4 Unicast

BGP table version is 6, local router ID is 1.1.1.1, vrf id 0
Default local pref 100, local AS 1
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.1/32                                   0.0.0.0                                        0         32768 ?
*>i2.2.2.2/32                                   192.168.56.152                                 0    100      0 ?
* i10.0.2.0/24                                  192.168.56.152                                 0    100      0 ?
*>                                              0.0.0.0                                        0         32768 ?
* i192.168.56.0/24                              192.168.56.152                                 0    100      0 ?
*>                                              0.0.0.0                                        0         32768 ?
*>i192.168.123.245/32                           192.168.56.152                                 0    100      0 ?
*>i192.168.223.245/32                           192.168.56.152                                 0    100      0 ?

Displayed  6 routes and 8 total paths
router#

router#
router# show ip bgp ipv6 all wide

For address family: IPv6 Unicast

BGP table version is 3, local router ID is 1.1.1.1, vrf id 0
Default local pref 100, local AS 1
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              ::                                             0         32768 ?
*>i2001:db8::2/128                              fe80::a00:27ff:fefc:2aa                        0    100      0 ?
*> 2001:db8:85a3::8a2e:370:7334/128             ::                                             0         32768 ?

Displayed  3 routes and 3 total paths
router#

router# show bgp all wide

For address family: IPv4 Unicast

BGP table version is 6, local router ID is 1.1.1.1, vrf id 0
Default local pref 100, local AS 1
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.1/32                                   0.0.0.0                                        0         32768 ?
*>i2.2.2.2/32                                   192.168.56.152                                 0    100      0 ?
* i10.0.2.0/24                                  192.168.56.152                                 0    100      0 ?
*>                                              0.0.0.0                                        0         32768 ?
* i192.168.56.0/24                              192.168.56.152                                 0    100      0 ?
*>                                              0.0.0.0                                        0         32768 ?
*>i192.168.123.245/32                           192.168.56.152                                 0    100      0 ?
*>i192.168.223.245/32                           192.168.56.152                                 0    100      0 ?

Displayed  6 routes and 8 total paths

For address family: IPv6 Unicast

BGP table version is 3, local router ID is 1.1.1.1, vrf id 0
Default local pref 100, local AS 1
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              ::                                             0         32768 ?
*>i2001:db8::2/128                              fe80::a00:27ff:fefc:2aa                        0    100      0 ?
*> 2001:db8:85a3::8a2e:370:7334/128             ::                                             0         32768 ?

Displayed  3 routes and 3 total paths
router#
router#

router# show bgp ipv4 all wide

For address family: IPv4 Unicast

BGP table version is 6, local router ID is 1.1.1.1, vrf id 0
Default local pref 100, local AS 1
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 1.1.1.1/32                                   0.0.0.0                                        0         32768 ?
*>i2.2.2.2/32                                   192.168.56.152                                 0    100      0 ?
* i10.0.2.0/24                                  192.168.56.152                                 0    100      0 ?
*>                                              0.0.0.0                                        0         32768 ?
* i192.168.56.0/24                              192.168.56.152                                 0    100      0 ?
*>                                              0.0.0.0                                        0         32768 ?
*>i192.168.123.245/32                           192.168.56.152                                 0    100      0 ?
*>i192.168.223.245/32                           192.168.56.152                                 0    100      0 ?

Displayed  6 routes and 8 total paths
router#

router# show bgp ipv6 all wide

For address family: IPv6 Unicast

BGP table version is 3, local router ID is 1.1.1.1, vrf id 0
Default local pref 100, local AS 1
Status codes:  s suppressed, d damped, h history, * valid, > best, = multipath,
               i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes:  i - IGP, e - EGP, ? - incomplete

   Network                                      Next Hop                                  Metric LocPrf Weight Path
*> 2001:db8::1/128                              ::                                             0         32768 ?
*>i2001:db8::2/128                              fe80::a00:27ff:fefc:2aa                        0    100      0 ?
*> 2001:db8:85a3::8a2e:370:7334/128             ::                                             0         32768 ?

Displayed  3 routes and 3 total paths
router#

Router1# show bgp all dampening parameters

For address family: IPv4 Unicast
Half-life time: 15 min
Reuse penalty: 750
Suppress penalty: 2000
Max suppress time: 60 min
Max suppress penalty: 12000

For address family: IPv4 Multicast
Half-life time: 20 min
Reuse penalty: 1000
Suppress penalty: 10000
Max suppress time: 40 min
Max suppress penalty: 4000

For address family: IPv4 VPN
dampening not enabled for IPv4 VPN

For address family: IPv4 Encap
dampening not enabled for IPv4 Encap

For address family: IPv4 Labeled Unicast
dampening not enabled for IPv4 Labeled Unicast

For address family: IPv4 Flowspec
dampening not enabled for IPv4 Flowspec

For address family: IPv6 Unicast
dampening not enabled for IPv6 Unicast

For address family: IPv6 Multicast
Half-life time: 10 min
Reuse penalty: 1500
Suppress penalty: 15000
Max suppress time: 20 min
Max suppress penalty: 6000

For address family: IPv6 VPN
dampening not enabled for IPv6 VPN

For address family: IPv6 Encap
dampening not enabled for IPv6 Encap

For address family: IPv6 Labeled Unicast
dampening not enabled for IPv6 Labeled Unicast

For address family: IPv6 Flowspec
dampening not enabled for IPv6 Flowspec

For address family: L2VPN EVPN
dampening not enabled for L2VPN EVPN
router#

bgpd: all option with json-c apis used

Replaced vty_out with json-c wrapper functions for all option
support to show <ip> bgp commands

Sample output:
Router2# show bgp all json
{
"ipv4Unicast":{
 "vrfId": 0,
 "vrfName": "default",
 "tableVersion": 8,
 "routerId": "128.16.16.1",
 "defaultLocPrf": 100,
 "localAS": 2,
 "routes": { "128.16.16.0/24": [
  {
    "valid":true,
    "bestpath":true,
    "pathFrom":"external",
    "prefix":"128.16.16.0",
    "prefixLen":24,
    "network":"128.16.16.0\/24",
    "metric":0,
    "weight":32768,
    "peerId":"(unspec)",
    "path":"",
    "origin":"IGP",
    "nexthops":[
      {
        "ip":"0.0.0.0",
        "hostname":"router",
        "afi":"ipv4",
        "used":true
      }
    ]
  }
],"130.130.0.0/16": [
  {
    "valid":true,
    "bestpath":true,
    "pathFrom":"external",
    "prefix":"130.130.0.0",
    "prefixLen":16,
    "network":"130.130.0.0\/16",
    "metric":0,
    "weight":32768,
    "peerId":"(unspec)",
    "path":"",
    "origin":"IGP",
    "nexthops":[
      {
        "ip":"0.0.0.0",
        "hostname":"router",
        "afi":"ipv4",
        "used":true
      }
    ]
  }
],"192.168.50.0/24": [
  {
    "valid":true,
    "bestpath":true,
    "pathFrom":"external",
    "prefix":"192.168.50.0",
    "prefixLen":24,
    "network":"192.168.50.0\/24",
    "metric":0,
    "weight":0,
    "peerId":"10.10.20.3",
    "path":"3",
    "origin":"IGP",
    "nexthops":[
      {
        "ip":"10.10.20.3",
        "hostname":"router",
        "afi":"ipv4",
        "used":true
      }
    ]
  }
],"200.200.200.0/24": [
  {
    "valid":true,
    "bestpath":true,
    "pathFrom":"external",
    "prefix":"200.200.200.0",
    "prefixLen":24,
    "network":"200.200.200.0\/24",
    "metric":0,
    "weight":0,
    "peerId":"10.10.10.1",
    "path":"1",
    "origin":"IGP",
    "nexthops":[
      {
        "ip":"10.10.10.1",
        "hostname":"router",
        "afi":"ipv4",
        "used":true
      }
    ]
  }
] } }
,
"ipv4Multicast":{
 "vrfId": 0,
 "vrfName": "default",
 "tableVersion": 0,
 "routerId": "128.16.16.1",
 "defaultLocPrf": 100,
 "localAS": 2,
 "routes": {  } }
,
"ipv4Flowspec":{
 "vrfId": 0,
 "vrfName": "default",
 "tableVersion": 0,
 "routerId": "128.16.16.1",
 "defaultLocPrf": 100,
 "localAS": 2,
 "routes": {  } }
,
"ipv6Unicast":{
 "vrfId": 0,
 "vrfName": "default",
 "tableVersion": 11,
 "routerId": "128.16.16.1",
 "defaultLocPrf": 100,
 "localAS": 2,
 "routes": { "2001:db8::2/128": [
  {
    "valid":true,
    "bestpath":true,
    "pathFrom":"external",
    "prefix":"2001:db8::2",
    "prefixLen":128,
    "network":"2001:db8::2\/128",
    "metric":0,
    "weight":32768,
    "peerId":"(unspec)",
    "path":"",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"::",
        "hostname":"router",
        "afi":"ipv6",
        "scope":"global",
        "used":true
      }
    ]
  }
],"2001:db8::3/128": [
  {
    "valid":true,
    "bestpath":true,
    "pathFrom":"external",
    "prefix":"2001:db8::3",
    "prefixLen":128,
    "network":"2001:db8::3\/128",
    "metric":0,
    "weight":0,
    "peerId":"10.10.20.3",
    "path":"3",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"2001:db8:0:20::3",
        "hostname":"router",
        "afi":"ipv6",
        "scope":"global"
      },
      {
        "ip":"fe80::a00:27ff:fe76:6738",
        "hostname":"router",
        "afi":"ipv6",
        "scope":"link-local",
        "used":true
      }
    ]
  }
],"2001:db8:0:20::/64": [
  {
    "valid":true,
    "pathFrom":"external",
    "prefix":"2001:db8:0:20::",
    "prefixLen":64,
    "network":"2001:db8:0:20::\/64",
    "metric":0,
    "weight":0,
    "peerId":"10.10.20.3",
    "path":"3",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"2001:db8:0:20::3",
        "hostname":"router",
        "afi":"ipv6",
        "scope":"global"
      },
      {
        "ip":"fe80::a00:27ff:fe76:6738",
        "hostname":"router",
        "afi":"ipv6",
        "scope":"link-local",
        "used":true
      }
    ]
  },
  {
    "valid":true,
    "bestpath":true,
    "pathFrom":"external",
    "prefix":"2001:db8:0:20::",
    "prefixLen":64,
    "network":"2001:db8:0:20::\/64",
    "metric":0,
    "weight":32768,
    "peerId":"(unspec)",
    "path":"",
    "origin":"incomplete",
    "nexthops":[
      {
        "ip":"::",
        "hostname":"router",
        "afi":"ipv6",
        "scope":"global",
        "used":true
      }
    ]
  }
] } }
,
"ipv6Multicast":{
 "vrfId": 0,
 "vrfName": "default",
 "tableVersion": 0,
 "routerId": "128.16.16.1",
 "defaultLocPrf": 100,
 "localAS": 2,
 "routes": {  } }
}
Router2#

Signed-off-by: Madhuri Kuruganti <k.madhuri@samsung.com>
2020-09-03 20:26:07 +05:30
Quentin Young
1e9be514b3 bgpd: modify attr fields before hash insert
bgp_attr_intern(attr) takes an attribute, duplicates it, and inserts it
into the attribute hash table, returning the inserted attr. This is done
when processing a bgp update. We store the returned attribute in the
path info struct. However, later on we modify one of the fields of the
attribute. This field is inspected by attrhash_cmp, the function that
allows the hash table to select the correct item from the hash chain for
a given key when doing a lookup on an item. By modifying the field after
it's been inserted, we open the possibility that two items in the same
chain that at insertion time were differential by attrhash_cmp becomes
equal according to that function. When performing subsequent hash
lookups, it is then indeterminate which of the equivalent items the hash
table will select from the chain (in practice it is the first one but
this may not be the one we want). Thus, it is illegal to modify
data used by a hash comparison function after inserting that data into
a hash table.

In fact this is occurring for attributes. We insert two attributes that
hash to the same key and thus end up in the same hash chain. Then we
modify one of them such that the two items now compare equal. Later one
we want to release the second item from the chain before XFREE()'ing it,
but since the two items compare equal we get the first item back, then
free the second one, which constitutes two bugs, the first being the
wrong attribute removed from the hash table and the second being a
dangling pointer stored in the hash table.

To rectify this we need to perform any modifications to an attr before
it is inserted into the table, i.e., before calling bgp_attr_intern().
This patch does that by moving the sole modification to the attr that
occurs after the insert (that I have seen) before that call.

Signed-off-by: Quentin Young <qlyoung@nvidia.com>
2020-09-02 13:16:35 -04:00
Rafael Zalamena
0856cc337f
Merge pull request #6903 from ton31337/fix/prevent_null_pointer_dereference_for_aspath
bgpd: Reuse bgp_adj_in for attr to avoid null dereference under aspath
2020-08-26 10:07:53 -03:00
Donald Sharp
c6d41e93e0
Merge pull request #5799 from pguibert6WIND/flowspec_ipv6
Flowspec ipv6
2020-08-26 08:26:46 -04:00
Donatas Abraitis
f41b045981 bgpd: Honor route-maps when forcing maximum-prefix for filtered routes
This will check route-maps as well, not only prefix-lists, access-lists, and
filter-lists.

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2020-08-22 18:30:54 +03:00
Philippe Guibert
4371bf9110 bgpd: remove warnings related to line too longs in bgp code
remove warnings related to line too long in bgp code.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
2020-08-21 13:37:08 +02:00
Philippe Guibert
1840384bae bgpd: flowspec code support for ipv6
until now, the assumption was done in bgp flowspec code that the
information contained was an ipv4 flowspec prefix. now that it is
possible to handle ipv4 or ipv6 flowspec prefixes, that information is
stored in prefix_flowspec attribute. Also, some unlocking is done in
order to process ipv4 and ipv6 flowspec entries.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
2020-08-21 13:37:08 +02:00
Donatas Abraitis
40bb2ccffa bgpd: Reuse bgp_adj_in for attr to avoid null dereference under aspath
Passing "&attr" to "bgp_input_filter", which dereferences null "attr.aspath".

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
2020-08-12 07:00:07 +03:00
Russ White
c6dc339540
Merge pull request #6801 from ton31337/feature/force_maximum-prefix_for_filtered_routes
bgpd: Add a knob to force maximum-prefix even for filtered routes
2020-08-11 11:52:05 -04:00
Anuradha Karuppiah
5e4d4c8aa4 bgpd: local path changes to display the SYNC info
Sample output -
root@torm-11:mgmt:~# net show bgp l2vpn evpn route vni 1000 mac 00:00:00:00:00:11
BGP routing table entry for [2]:[0]:[48]:[00:00:00:00:00:11]
Paths: (5 available, best #5)
  Not advertised to any peer
  Route [2]:[0]:[48]:[00:00:00:00:00:11] VNI 1000
  Imported from 27.0.0.16:14:[2]:[0]:[48]:[00:00:00:00:00:11], VNI 1000
  4435 5551
    27.0.0.16 from spine-2(swp4) (27.0.0.14)
      ESI 03:00:00:00:00:01:11:00:00:01 local-es
      Origin IGP, valid, external
      Extended Community: RT:5551:1000 RT:5551:4001 ET:8 Rmac:00:02:00:00:00:2d
      Last update: Fri Mar 27 02:26:35 2020

>>>>>>>>>>>>>>>>>>>> SNIP >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

  Route [2]:[0]:[48]:[00:00:00:00:00:11] VNI 1000/4001
  Local
    27.0.0.15 from 0.0.0.0 (27.0.0.15)
      ESI 03:00:00:00:00:01:11:00:00:01 local-es peer-info: (active MM: 0) >>>
      Origin IGP, weight 32768, valid, sourced, local, bestpath-from-AS Local, best (EVPN local ES path)
      Extended Community: ET:8 RT:5550:1000 RT:5550:4001 Rmac:00:02:00:00:00:25
      Last update: Fri Mar 27 02:26:35 2020

Displayed 5 paths for requested prefix
root@torm-11:mgmt:~#

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
2020-08-05 06:46:13 -07:00
Anuradha Karuppiah
d071f23715 bgpd: evpn path selection changes for MAC-IP SYNC route handling
When a SYNC route i.e. a route with a local ES as destination is
rxed on a switch (say L11) from an ES peer (say L12) a local
MAC/neigh entry is created on L11 with the local access port
as dest port.

Creation of the local entry triggers a local path advertisement from
L11. This could be a "locally-active" path or a "locally-inactive"
path. Inactive paths are advertised with the proxy bit.

To ensure that the local entry is not deleted by a SYNC route it is
given absolute precedence over peer-paths.

If there are two non-local paths with the same dest ES and same MM
seq number the non-proxy path is preferred. This is done to ensure
that we don't lose track of the peer-activity.

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
2020-08-05 06:46:12 -07:00
Anuradha Karuppiah
b5e140c85c bgpd: CLI changes for EAD routes and ES/ES-EVI display
1. Sample ES display
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
torm-11# sh bgp l2vpn evpn es
ES Flags: L local, R remote, I inconsistent
VTEP Flags: E ESR/Type-4, A active nexthop
ESI                            Flags RD                    #VNIs    VTEPs
03:00:00:00:00:01:11:00:00:01  LR    27.0.0.15:15          10       27.0.0.16(EA)
03:00:00:00:00:01:22:00:00:02  LR    27.0.0.15:16          10       27.0.0.16(EA)
03:00:00:00:00:01:22:00:00:03  LR    27.0.0.15:17          10       27.0.0.16(EA)
03:00:00:00:00:02:11:00:00:01  R     -                     10       27.0.0.17(A),27.0.0.18(A)
03:00:00:00:00:02:22:00:00:02  R     -                     10       27.0.0.17(A),27.0.0.18(A)
03:00:00:00:00:02:22:00:00:03  R     -                     10       27.0.0.17(A),27.0.0.18(A)
torm-11#

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

2. Sample ES-EVI display
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
torm-11# sh bgp l2vpn evpn es-evi
Flags: L local, R remote, I inconsistent
VTEP-Flags: E EAD-per-ES, V EAD-per-EVI
VNI      ESI                            Flags VTEPs
1005     03:00:00:00:00:01:11:00:00:01  LR    27.0.0.16(EV)
1005     03:00:00:00:00:01:22:00:00:02  LR    27.0.0.16(EV)
1005     03:00:00:00:00:01:22:00:00:03  LR    27.0.0.16(EV)
1005     03:00:00:00:00:02:11:00:00:01  R     27.0.0.17(EV),27.0.0.18(EV)
1005     03:00:00:00:00:02:22:00:00:02  R     27.0.0.17(EV),27.0.0.18(EV)
1005     03:00:00:00:00:02:22:00:00:03  R     27.0.0.17(EV),27.0.0.18(EV)
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

3. Sample EAD route display
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
torm-11# sh bgp l2vpn evpn route type ead
BGP table version is 19, local router ID is 27.0.0.15
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal
Origin codes: i - IGP, e - EGP, ? - incomplete
EVPN type-1 prefix: [4]:[ESI]:[EthTag]:[IPlen]:[VTEP-IP]
EVPN type-2 prefix: [2]:[EthTag]:[MAClen]:[MAC]:[IPlen]:[IP]
EVPN type-3 prefix: [3]:[EthTag]:[IPlen]:[OrigIP]
EVPN type-4 prefix: [4]:[ESI]:[IPlen]:[OrigIP]
EVPN type-5 prefix: [5]:[EthTag]:[IPlen]:[IP]

   Network          Next Hop            Metric LocPrf Weight Path
                    Extended Community
Route Distinguisher: 27.0.0.15:5
*> [1]:[0]:[03:00:00:00:00:01:11:00:00:01]:[128]:[0.0.0.0]
                    27.0.0.15                          32768 i
                    ET:8 RT:5550:1009
*> [1]:[0]:[03:00:00:00:00:01:22:00:00:02]:[128]:[0.0.0.0]
                    27.0.0.15                          32768 i
                    ET:8 RT:5550:1009
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
2020-08-05 06:46:12 -07:00