diff options
Diffstat (limited to 'cloudinit/netinfo.py')
| -rw-r--r-- | cloudinit/netinfo.py | 85 |
1 files changed, 59 insertions, 26 deletions
diff --git a/cloudinit/netinfo.py b/cloudinit/netinfo.py index 3ba922e8..80223256 100644 --- a/cloudinit/netinfo.py +++ b/cloudinit/netinfo.py @@ -1,15 +1,37 @@ +#!/usr/bin/python +# vi: ts=4 expandtab +# +# Copyright (C) 2012 Canonical Ltd. +# Copyright (C) 2012 Hewlett-Packard Development Company, L.P. +# +# Author: Scott Moser <scott.moser@canonical.com> +# Author: Juerg Haefliger <juerg.haefliger@hp.com> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# 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 subprocess -def netdev_info(): - fields = ( "hwaddr", "addr", "bcast", "mask" ) - ifcfg_out = subprocess.check_output(["ifconfig", "-a"]) - devs = { } + +def netdev_info(empty=""): + fields = ("hwaddr", "addr", "bcast", "mask") + ifcfg_out = str(subprocess.check_output(["ifconfig", "-a"])) + devs = {} for line in ifcfg_out.splitlines(): if len(line) == 0: continue if line[0] not in ("\t", " "): curdev = line.split()[0] - devs[curdev] = { "up": False } + devs[curdev] = {"up": False} for field in fields: devs[curdev][field] = "" toks = line.lower().strip().split() @@ -23,25 +45,33 @@ def netdev_info(): for i in range(len(toks)): if toks[i] == "hwaddr": try: - devs[curdev]["hwaddr"] = toks[i+1] - except IndexError as e: + devs[curdev]["hwaddr"] = toks[i + 1] + except IndexError: pass for field in ("addr", "bcast", "mask"): target = "%s%s" % (field, fieldpost) - if devs[curdev].get(target,""): + if devs[curdev].get(target, ""): continue if toks[i] == "%s:" % field: try: - devs[curdev][target] = toks[i+1] - except IndexError as e: + devs[curdev][target] = toks[i + 1] + except IndexError: pass elif toks[i].startswith("%s:" % field): - devs[curdev][target] = toks[i][len(field)+1:] + devs[curdev][target] = toks[i][len(field) + 1:] + + if empty != "": + for (devname, dev) in devs.iteritems(): + for field in dev: + if dev[field] == "": + dev[field] = empty + return(devs) + def route_info(): - route_out = subprocess.check_output(["route", "-n"]) - routes = [ ] + route_out = str(subprocess.check_output(["route", "-n"])) + routes = [] for line in route_out.splitlines()[1:]: if not line: continue @@ -51,33 +81,36 @@ def route_info(): routes.append(toks) return(routes) + def getgateway(): for r in route_info(): if r[3].find("G") >= 0: - return("%s[%s]" % (r[1],r[7])) + return("%s[%s]" % (r[1], r[7])) return(None) + def debug_info(pre="ci-info: "): - lines = [ ] + lines = [] try: - netdev = netdev_info() - except Exception as e: + netdev = netdev_info(empty=".") + except Exception: lines.append("netdev_info failed!") netdev = {} for (dev, d) in netdev.iteritems(): lines.append("%s%-6s: %i %-15s %-15s %s" % - (pre, dev, d["up"], d["addr"],d["mask"], d["hwaddr"])) + (pre, dev, d["up"], d["addr"], d["mask"], d["hwaddr"])) try: - routes = route_info() - except Exception as e: - lines.append("route_info failed") - routes = [] + routes = route_info() + except Exception: + lines.append("route_info failed") + routes = [] n = 0 for r in routes: - lines.append("%sroute-%d: %-15s %-15s %-15s %-6s %s" % - (pre, n, r[0], r[1], r[2], r[7], r[3])) - n = n+1 + lines.append("%sroute-%d: %-15s %-15s %-15s %-6s %s" % + (pre, n, r[0], r[1], r[2], r[7], r[3])) + n = n + 1 return('\n'.join(lines)) + if __name__ == '__main__': - print debug_info() + print debug_info() |