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authorChristian Poessinger <christian@poessinger.com>2020-03-04 19:53:58 +0100
committerChristian Poessinger <christian@poessinger.com>2020-03-04 21:45:41 +0100
commit93f7ae7f1ed1e218ef64d2582d11ac0ed769a438 (patch)
tree9ec8c29b220496481e90a23265221f8632e48a92 /src
parent5bf9dfd17096af6e7cf06e8e20eb16e8e55b9177 (diff)
downloadvyos-1x-93f7ae7f1ed1e218ef64d2582d11ac0ed769a438.tar.gz
vyos-1x-93f7ae7f1ed1e218ef64d2582d11ac0ed769a438.zip
vrf: T31: rename 'vrf disable-bind-to-all ipv4' to 'vrf bind-to-all'
By default the scope of the port bindings for unbound sockets is limited to the default VRF. That is, it will not be matched by packets arriving on interfaces enslaved to an l3mdev and processes may bind to the same port if they bind to an l3mdev. TCP & UDP services running in the default VRF context (ie., not bound to any VRF device) can work across all VRF domains by enabling the 'vrf bind-to-all' option.
Diffstat (limited to 'src')
-rwxr-xr-xsrc/conf_mode/vrf.py15
1 files changed, 9 insertions, 6 deletions
diff --git a/src/conf_mode/vrf.py b/src/conf_mode/vrf.py
index ad2b72a5b..e31285dde 100755
--- a/src/conf_mode/vrf.py
+++ b/src/conf_mode/vrf.py
@@ -24,6 +24,7 @@ from vyos.configdict import list_diff
from vyos import ConfigError
default_config_data = {
+ 'bind_to_all': 0,
'deleted': False,
'vrf_add': [],
'vrf_existing': [],
@@ -40,7 +41,6 @@ def _cmd(command):
pass
raise ConfigError(f'Error operationg on VRF: {e}')
-
def interfaces_with_vrf(match):
matched = []
config = Config()
@@ -55,7 +55,6 @@ def interfaces_with_vrf(match):
matched.append(name)
return matched
-
def get_config():
conf = Config()
vrf_config = deepcopy(default_config_data)
@@ -65,6 +64,11 @@ def get_config():
# get all currently effetive VRFs and mark them for deletion
vrf_config['vrf_remove'] = conf.list_effective_nodes(cfg_base + ['name'])
else:
+
+ # Should services be allowed to bind to all VRFs?
+ if conf.exists(['bind-to-all']):
+ vrf_config['bind_to_all'] = 1
+
# Determine vrf interfaces (currently effective) - to determine which
# vrf interface is no longer present and needs to be removed
eff_vrf = conf.list_effective_nodes(cfg_base + ['name'])
@@ -121,7 +125,6 @@ def get_config():
vrf_config['vrf_remove'] = tmp
return vrf_config
-
def verify(vrf_config):
# ensure VRF is not assigned to any interface
for vrf in vrf_config['vrf_remove']:
@@ -137,7 +140,6 @@ def verify(vrf_config):
return None
-
def generate(vrf_config):
return None
@@ -145,8 +147,9 @@ def apply(vrf_config):
# https://github.com/torvalds/linux/blob/master/Documentation/networking/vrf.txt
# set the default VRF global behaviour
- #sysctl('net.ipv4.tcp_l3mdev_accept', command['bind']['ipv4'])
- #sysctl('net.ipv4.udp_l3mdev_accept', command['bind']['ipv4'])
+ bind_all = vrf_config['bind_to_all']
+ _cmd(f'sysctl -wq net.ipv4.tcp_l3mdev_accept={bind_all}')
+ _cmd(f'sysctl -wq net.ipv4.udp_l3mdev_accept={bind_all}')
for vrf_name in vrf_config['vrf_remove']:
if os.path.isdir(f'/sys/class/net/{vrf_name}'):