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authorChristian Poessinger <christian@poessinger.com>2021-08-24 12:27:07 +0200
committerChristian Poessinger <christian@poessinger.com>2021-08-24 12:27:07 +0200
commit474db49afc759eeacc2208a18995452e6fe5f6fc (patch)
tree38c8c7ed731e2d5bcdae211c07a362e2a6b36c52 /src/validators/bgp-route-target
parenta98b0d886f522ca9620182bd0f1a2f73a905f35a (diff)
downloadvyos-1x-474db49afc759eeacc2208a18995452e6fe5f6fc.tar.gz
vyos-1x-474db49afc759eeacc2208a18995452e6fe5f6fc.zip
bgp: T3759: "l2vpn evpn" and ipv4/ipv6 safi route-targets differ
The "l2vpn evpn" address-family route-target command only accepts a single route-target value consisting of (A.B.C.D:MN|EF:OPQR|GHJK:MN). The "ipv4-unicast or ipv6-unicast" address-family route-target command for VPNs support multiple, whitespace separated route-target values. This commit adds a new custom validator named "bgp-route-target" with a --single and a --multi option to pass one or more route-target values.
Diffstat (limited to 'src/validators/bgp-route-target')
-rwxr-xr-xsrc/validators/bgp-route-target51
1 files changed, 51 insertions, 0 deletions
diff --git a/src/validators/bgp-route-target b/src/validators/bgp-route-target
new file mode 100755
index 000000000..e7e4d403f
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+++ b/src/validators/bgp-route-target
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+from argparse import ArgumentParser
+from vyos.template import is_ipv4
+
+parser = ArgumentParser()
+group = parser.add_mutually_exclusive_group()
+group.add_argument('--single', action='store', help='Validate and allow only one route-target')
+group.add_argument('--multi', action='store', help='Validate multiple, whitespace separated route-targets')
+args = parser.parse_args()
+
+def is_valid_rt(rt):
+ # every route target needs to have a colon and must consists of two parts
+ value = rt.split(':')
+ if len(value) != 2:
+ return False
+ # A route target must either be only numbers, or the first part must be an
+ # IPv4 address
+ if (is_ipv4(value[0]) or value[0].isdigit()) and value[1].isdigit():
+ return True
+ return False
+
+if __name__ == '__main__':
+ if args.single:
+ if not is_valid_rt(args.single):
+ exit(1)
+
+ elif args.multi:
+ for rt in args.multi.split(' '):
+ if not is_valid_rt(rt):
+ exit(1)
+
+ else:
+ parser.print_help()
+ exit(1)
+
+ exit(0)