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#!/usr/bin/env python
# vim:ts=4:sw=4:et:ai:sts=4
import os, re, subprocess, sys
import nemu.subprocess_
from nemu.environ import *
def process_ipcmd(str):
cur = None
out = {}
for line in str.split("\n"):
if line == "":
cur = None
continue
match = re.search(r'^(\d+): (\S+): <(\S+)> mtu (\d+) qdisc (\S+)',
line)
if match != None:
cur = match.group(2)
out[cur] = {
'idx': int(match.group(1)),
'flags': match.group(3).split(","),
'mtu': int(match.group(4)),
'qdisc': match.group(5),
'addr': []
}
out[cur]['up'] = 'UP' in out[cur]['flags']
continue
# Assume cur is defined
assert cur != None
match = re.search(r'^\s+link/\S*(?: ([0-9a-f:]+))?(?: |$)', line)
if match != None:
out[cur]['lladdr'] = match.group(1)
continue
match = re.search(r'^\s+inet ([0-9.]+)/(\d+)(?: brd ([0-9.]+))?', line)
if match != None:
out[cur]['addr'].append({
'address': match.group(1),
'prefix_len': int(match.group(2)),
'broadcast': match.group(3),
'family': 'inet'})
continue
match = re.search(r'^\s+inet6 ([0-9a-f:]+)/(\d+)(?: |$)', line)
if match != None:
out[cur]['addr'].append({
'address': match.group(1),
'prefix_len': int(match.group(2)),
'family': 'inet6'})
continue
match = re.search(r'^\s{4}', line)
assert match != None
return out
def get_devs():
outdata = backticks([IP_PATH, "addr", "list"])
return process_ipcmd(outdata)
def get_devs_netns(node):
out = nemu.subprocess_.backticks_raise(node, [IP_PATH, "addr", "list"])
return process_ipcmd(out)
def make_linux_ver(string):
match = re.match(r'(\d+)\.(\d+)(?:\.(\d+))?(.*)', string)
version, patchlevel, sublevel, extraversion = match.groups()
if not sublevel:
sublevel = 0
return (int(version) << 16) + (int(patchlevel) << 8) + int(sublevel)
def get_linux_ver():
return make_linux_ver(os.uname()[2])
# Unittest from Python 2.6 doesn't have these decorators
def _bannerwrap(f, text):
name = f.__name__
def banner(*args, **kwargs):
sys.stderr.write("*** WARNING: Skipping test %s: `%s'\n" %
(name, text))
return None
return banner
def skip(text):
return lambda f: _bannerwrap(f, text)
def skipUnless(cond, text):
return (lambda f: _bannerwrap(f, text)) if not cond else lambda f: f
def skipIf(cond, text):
return (lambda f: _bannerwrap(f, text)) if cond else lambda f: f
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