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authorDonatas Abraitis <donatas.abraitis@gmail.com>2021-05-24 09:55:03 +0300
committerDonatas Abraitis <donatas.abraitis@gmail.com>2021-05-24 09:55:03 +0300
commit94d720ff40644d09d99829d6a1520075b9f8475a (patch)
tree4fc816ce7ad55a140e81aec21018e1bd38ce5d9a /pkg/server
parentcbdb752b10847163d9f942853b67cf173b6aa151 (diff)
Add FQDN capability
It's not kinda RFC (draft), but it's implemented and used in various other open-source software like FRRouting, Bird, ExaBGP. It's very handy when dealing with lots of peers. Exampe between GoBGP and FRRouting: ``` % ./cmd/gobgp/gobgp neighbor 192.168.10.123 | grep -A4 fqdn: fqdn: advertised and received Local: name: donatas-pc, domain: Remote: name: exit1-debian-9, domain: ``` ``` % vtysh -c 'show bgp neighbors 192.168.10.17 json' | jq .'"192.168.10.17".neighborCapabilities.hostName' { "advHostName": "exit1-debian-9", "advDomainName": "n/a", "rcvHostName": "donatas-pc", "rcvDomainName": "n/a" } ``` Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
Diffstat (limited to 'pkg/server')
-rw-r--r--pkg/server/fsm.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/pkg/server/fsm.go b/pkg/server/fsm.go
index b024cf3e..abd94ed9 100644
--- a/pkg/server/fsm.go
+++ b/pkg/server/fsm.go
@@ -21,6 +21,7 @@ import (
"io"
"math/rand"
"net"
+ "os"
"strconv"
"sync"
"syscall"
@@ -714,8 +715,11 @@ func capAddPathFromConfig(pConf *config.Neighbor) bgp.ParameterCapabilityInterfa
}
func capabilitiesFromConfig(pConf *config.Neighbor) []bgp.ParameterCapabilityInterface {
+ fqdn, _ := os.Hostname()
caps := make([]bgp.ParameterCapabilityInterface, 0, 4)
caps = append(caps, bgp.NewCapRouteRefresh())
+ caps = append(caps, bgp.NewCapFQDN(fqdn, ""))
+
for _, af := range pConf.AfiSafis {
caps = append(caps, bgp.NewCapMultiProtocol(af.State.Family))
}