diff options
Diffstat (limited to 'python/vyos/ifconfig/section.py')
| -rw-r--r-- | python/vyos/ifconfig/section.py | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/python/vyos/ifconfig/section.py b/python/vyos/ifconfig/section.py index 926c22e8a..bf1468bdb 100644 --- a/python/vyos/ifconfig/section.py +++ b/python/vyos/ifconfig/section.py @@ -13,6 +13,7 @@ # You should have received a copy of the GNU Lesser General Public # License along with this library. If not, see <http://www.gnu.org/licenses/>. +import re import netifaces @@ -103,12 +104,44 @@ class Section: yield ifname @classmethod + def _sort_interfaces(cls, generator): + """ + return a list of the sorted interface by number, vlan, qinq + """ + def key(ifname): + value = 0 + parts = re.split(r'(\w+)([0-9])[.]?([0-9]+)?[.]?([0-9]+)?', ifname) + length = len(parts) + name = parts[1] if length >= 3 else parts[0] + number = int(parts[2]) if length >= 4 and parts[2] is not None else 0 + vlan = int(parts[3]) if length >= 5 and parts[3] is not None else 0 + qinq = int(parts[4]) if length >= 6 and parts[4] is not None else 0 + + # so that "lo" (or short names) are handled (as "loa") + for n in (name + 'aaa')[:3]: + value *= 100 + value += (ord(n) - ord('a')) + + for n in (number, vlan, qinq): + # if the interface number is big enough it could cause the order to not be right + # but there is no real alternative with only one pass over the data + value *= 100000 + # the +1 makes sure eth0.0.0 after eth0.0 + value += (n+1) + return value + + l = list(generator) + l.sort(key=key) + return l + + @classmethod def interfaces(cls, section=''): """ return a list of the name of the configured interface which are under a section if no section is provided, then it returns all configured interfaces """ - return list(cls._intf_under_section(section)) + + return cls._sort_interfaces(cls._intf_under_section(section)) @classmethod def _intf_with_feature(cls, feature=''): |