T4163: Add BGP Monitoring Protocol BMP feature

Add BMP feature.
BMP (BGP Monitoring Protocol, RFC 7854) is used to send monitoring
data from BGP routers to network management entities

https://docs.frrouting.org/en/latest/bmp.html

Example:

set system frr bmp
commit
run restart bgp

set protocols bgp system-as '65001'
set protocols bgp neighbor 192.0.2.11 address-family ipv4-unicast
set protocols bgp neighbor 192.0.2.11 remote-as '65001'

set protocols bgp bmp mirror-buffer-limit '256000000'
set protocols bgp bmp target foo address '127.0.0.1'
set protocols bgp bmp target foo port '5000'
set protocols bgp bmp target foo min-retry '1000'
set protocols bgp bmp target foo max-retry '2000'
set protocols bgp bmp target foo mirror
set protocols bgp bmp target foo monitor ipv4-unicast post-policy
set protocols bgp bmp target foo monitor ipv4-unicast pre-policy
set protocols bgp bmp target foo monitor ipv6-unicast post-policy
set protocols bgp bmp target foo monitor ipv6-unicast pre-policy

1 files changed, 14 insertions, 0 deletions

diff --git a/src/conf_mode/protocols_bgp.py b/src/conf_mode/protocols_bgp.py
index 557f0a9e9..5a503a9b7 100755
--- a/src/conf_mode/protocols_bgp.py
+++ b/src/conf_mode/protocols_bgp.py
@@ -30,6 +30,7 @@ from vyos.template import render_to_string
 from vyos.utils.dict import dict_search
 from vyos.utils.network import get_interface_vrf
 from vyos.utils.network import is_addr_assigned
+from vyos.utils.process import process_named_running
 from vyos import ConfigError
 from vyos import frr
 from vyos import airbag
@@ -247,6 +248,19 @@ def verify(bgp):
     if 'system_as' not in bgp:
         raise ConfigError('BGP system-as number must be defined!')
 
+    # Verify BMP
+    if 'bmp' in bgp:
+        # check bmp flag "bgpd -d -F traditional --daemon -A 127.0.0.1 -M rpki -M bmp"
+        if not process_named_running('bgpd', 'bmp'):
+            raise ConfigError(
+                f'"bmp" flag is not found in bgpd. Configure "set system frr bmp" and restart bgp process'
+            )
+        # check bmp target
+        if 'target' in bgp['bmp']:
+            for target, target_config in bgp['bmp']['target'].items():
+                if 'address' not in target_config:
+                    raise ConfigError(f'BMP target "{target}" address must be defined!')
+
     # Verify vrf on interface and bgp section
     if 'interface' in bgp:
         for interface in bgp['interface']: