From 31cd47594aa54f6d04500e16c67e723d548df8d6 Mon Sep 17 00:00:00 2001
From: sarthurdev <965089+sarthurdev@users.noreply.github.com>
Date: Mon, 12 Sep 2022 22:49:34 +0200
Subject: nhrp: T2199: Use separate table in nftables for NHRP rules
---
src/conf_mode/protocols_nhrp.py | 32 ++++++++++++++------------------
1 file changed, 14 insertions(+), 18 deletions(-)
(limited to 'src/conf_mode')
diff --git a/src/conf_mode/protocols_nhrp.py b/src/conf_mode/protocols_nhrp.py
index 991fcc7eb..d28ced4fd 100755
--- a/src/conf_mode/protocols_nhrp.py
+++ b/src/conf_mode/protocols_nhrp.py
@@ -14,10 +14,10 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
+import os
+
from vyos.config import Config
from vyos.configdict import node_changed
-from vyos.firewall import find_nftables_rule
-from vyos.firewall import remove_nftables_rule
from vyos.template import render
from vyos.util import process_named_running
from vyos.util import run
@@ -26,6 +26,7 @@ from vyos import airbag
airbag.enable()
opennhrp_conf = '/run/opennhrp/opennhrp.conf'
+nhrp_nftables_conf = '/run/nftables_nhrp.conf'
def get_config(config=None):
if config:
@@ -84,28 +85,23 @@ def verify(nhrp):
return None
def generate(nhrp):
+ if not os.path.exists(nhrp_nftables_conf):
+ nhrp['first_install'] = True
+
render(opennhrp_conf, 'nhrp/opennhrp.conf.j2', nhrp)
+ render(nhrp_nftables_conf, 'nhrp/nftables.conf.j2', nhrp)
return None
def apply(nhrp):
- if 'tunnel' in nhrp:
- for tunnel, tunnel_conf in nhrp['tunnel'].items():
- if 'source_address' in nhrp['if_tunnel'][tunnel]:
- comment = f'VYOS_NHRP_{tunnel}'
- source_address = nhrp['if_tunnel'][tunnel]['source_address']
-
- rule_handle = find_nftables_rule('ip vyos_filter', 'VYOS_FW_OUTPUT', ['ip protocol gre', f'ip saddr {source_address}', 'ip daddr 224.0.0.0/4'])
- if not rule_handle:
- run(f'sudo nft insert rule ip vyos_filter VYOS_FW_OUTPUT ip protocol gre ip saddr {source_address} ip daddr 224.0.0.0/4 counter drop comment "{comment}"')
-
- for tunnel in nhrp['del_tunnels']:
- comment = f'VYOS_NHRP_{tunnel}'
- rule_handle = find_nftables_rule('ip vyos_filter', 'VYOS_FW_OUTPUT', [f'comment "{comment}"'])
- if rule_handle:
- remove_nftables_rule('ip vyos_filter', 'VYOS_FW_OUTPUT', rule_handle)
+ nft_rc = run(f'nft -f {nhrp_nftables_conf}')
+ if nft_rc != 0:
+ raise ConfigError('Failed to apply NHRP tunnel firewall rules')
action = 'restart' if nhrp and 'tunnel' in nhrp else 'stop'
- run(f'systemctl {action} opennhrp.service')
+ service_rc = run(f'systemctl {action} opennhrp.service')
+ if service_rc != 0:
+ raise ConfigError(f'Failed to {action} the NHRP service')
+
return None
if __name__ == '__main__':
--
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