[pykickstart][rhel7-branch/master][PATCH 1/2] Validate network interface name when parsing the kickstart (#1081982)
Martin Kolman
mkolman at redhat.com
Mon Sep 8 15:14:12 UTC 2014
Resolves: rhbz#1081982
Signed-off-by: Martin Kolman <mkolman at redhat.com>
---
pykickstart/commands/network.py | 42 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/pykickstart/commands/network.py b/pykickstart/commands/network.py
index 7b1341c..d48aec2 100644
--- a/pykickstart/commands/network.py
+++ b/pykickstart/commands/network.py
@@ -523,3 +523,45 @@ class RHEL7_Network(F20_Network):
op.add_option("--interfacename", dest="interfacename", action="store",
default="")
return op
+
+ def parse(self, args):
+ # call the overridden command to do it's job first
+ retval = F20_Network.parse(self, args)
+
+ # validate the device name
+ # (for reference see the NetworkManager source code:
+ # NetworkManager/src/settings/plugins/ifcfg-rh/reader.c
+ # and the make_vlan_setting function)
+
+ min_vlan_id = 0
+ max_vlan_id = 4095
+ vlan_id = None
+
+ # if it contains '.', vlan id should follow (eg 'ens7.171', 'mydev.171')
+ split_name = retval.interfacename.split(".", 1)
+ if len(split_name) > 1:
+ # 'vlan' can't be followed by a '.'
+ if split_name[0] == "vlan":
+ raise KickstartValueError(formatErrorMsg(self.lineno,
+ msg=_("for network --interfacename 'vlan' can't be followed by a '.'")))
+ try:
+ vlan_id = int(split_name[1])
+ except ValueError:
+ raise KickstartValueError(formatErrorMsg(self.lineno,
+ msg=_("if network --interfacename contains a '.', valid vlan id should follow")))
+
+ # if it starts with 'vlan', vlan id should follow ('vlan171')
+ if retval.interfacename.startswith("vlan"):
+ try:
+ vlan_id = int(retval.interfacename.strip("vlan"))
+ except ValueError:
+ raise KickstartValueError(formatErrorMsg(self.lineno,
+ msg=_("if network --interfacename starts with 'vlan', valid vlan id should follow")))
+
+ # check if the vlan id is in range
+ if vlan_id is not None:
+ if not(min_vlan_id <= vlan_id <= max_vlan_id):
+ raise KickstartValueError(formatErrorMsg(self.lineno,
+ msg=_("vlan id out of range")))
+
+ return retval
--
1.9.3
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