wireless: T2887: Jinja2 can not work on keys starting with a number

... an error would be presented: jinja2.exceptions.TemplateSyntaxError:
expected token 'end of statement block', got 'mhz_incapable', thus we simply
rename the key before rendering the template.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/conf_mode/interfaces-wireless.py b/src/conf_mode/interfaces-wireless.py
index 9861f72db..c6c843e7b 100755
--- a/src/conf_mode/interfaces-wireless.py
+++ b/src/conf_mode/interfaces-wireless.py
@@ -33,6 +33,7 @@ from vyos.configverify import verify_vrf
 from vyos.ifconfig import WiFiIf
 from vyos.template import render
 from vyos.util import call
+from vyos.util import vyos_dict_search
 from vyos import ConfigError
 from vyos import airbag
 airbag.enable()
@@ -213,6 +214,11 @@ def generate(wifi):
             mac.dialect = mac_unix_expanded
             wifi['mac'] = str(mac)
 
+    # XXX: Jinja2 can not operate on a dictionary key when it starts of with a number
+    if '40mhz_incapable' in (vyos_dict_search('capabilities.ht', wifi) or []):
+        wifi['capabilities']['ht']['fourtymhz_incapable'] = wifi['capabilities']['ht']['40mhz_incapable']
+        del wifi['capabilities']['ht']['40mhz_incapable']
+
     # render appropriate new config files depending on access-point or station mode
     if wifi['type'] == 'access-point':
         render(hostapd_conf.format(**wifi), 'wifi/hostapd.conf.tmpl', wifi, trim_blocks=True)