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#!/usr/bin/env python
def read_available(filename):
"""
Parses the output of bitbake -s
minus the first few lines
"""
f = open(filename)
packages = {}
for line in f:
# str.split can not be used as we have multiple whitespace
first_space = line.find(" ")
package = line[0:first_space]
rest = line[first_space+1:]
pv = rest.strip().split(" ")[0]
packages[package] = pv
return packages
def map_names(str):
"""Map a FreeBSD name to OE"""
maps = {
"libpurple" : "pidgin",
"php4" : "php",
"php5" : "php",
"expat2" : "expat",
"freeciv-gtk" : "freeciv",
"pcre" : "libpcre",
"vim-gnome" : "vim",
"python23" : "python",
"python24" : "python",
"python25" : "python",
"python+ipv6" : "python",
"wget-devel" : "wget",
"xchat2" : "xchat",
"freetype" : "freetype",
"qemu-devel" : "qemu",
"krb5-beta" : "krb5",
"freeciv-gtk2": "freeciv",
}
try:
return maps[str]
except:
return str
def is_not_in_oe(name):
"""Method to reject packages not in OE"""
not_in = [
"openoffice.org-2-devel",
"linux-firefox", "fr-linux-netscape", "linux-netscape-{communicator,navigator}",
"linux_base", "ja-netscape7", "{ja,ko}-netscape-{communicator,navigator}-linux",
]
return name in not_in
class freebsd_info:
"""
Handles an entry like the one below:
vulnerability-test-port>=2000<2010.02.26|http://cvsweb.freebsd.org/ports/security/vulnerability-test-port/|Not vulnerable, just a test port (database: 2010-02-26)
"""
def __init__(self, line):
split = line.split("|")
for i in range(0, len(split[0])):
c = split[0][i]
if c != '<' and c != '=' and c != '>':
continue
self.name = map_names(split[0][0:i])
self.versions = self.split_versions(split[0][i:])
break
self.link = split[1]
self.kind = split[2]
@classmethod
def split_versions(self, input):
"""
Split versions by <, >, >=, >=
"""
versions = []
last_pos = 0
# Try to determine <, >, >=, <=
# we will have to carry stuff on to find the
# version..
i = 0
while i < len(input) - 1:
c1 = input[i]
c2 = input[i+1]
if c1 != '<' and c1 != '>' and c1 != '=':
i = i + 1
continue
# is a '=' coming behind it?
next = i + 1
if c2 == '=':
next = next + 1
# submit
if last_pos != 0:
versions.append((next_type, input[last_pos:i]))
# remember stuff
next_type = input[i:next]
last_pos = next
i = next
assert last_pos != 0
versions.append((next_type, input[last_pos:len(input)]))
return versions
def __repr__(self):
return "%s: %s" % (self.name, self.versions)
def read_auditfile(filename):
"""
Read an uncompressed audit file from freebsd
"""
f = open(filename)
packages = {}
for line in f:
if line.startswith("#"):
continue
info = freebsd_info(line)
try:
packages[info.name].append(info)
except:
packages[info.name] = []
packages[info.name].append(info)
return packages
def strip_oe_version(oe_version):
"""
We need to strip the package epoch... and the PR to compare
it to the FreeBSD versions. Also FreeBSD seems to use _N as
PR so we might need to do more..
"""
split = oe_version.split(':', 1)
ver = split[1]
split = ver.rsplit('-r', 1)
ver = split[0]
return ver
def strip_bsd_version(bsd_version):
"""
FreeBSD is adding ,1 for revisions.. remove that
"""
split = bsd_version.rsplit(',', 1)
return split[0]
def compare_versions(oe, freebsd, not_known):
def handle_package(oe_name, bsd_name):
if not oe_name in oe:
if oe_name == bsd_name:
print >> not_known, "%s is not in OE" % oe_name
return
oe_version = strip_oe_version(oe[oe_name])
for ver in freebsd[bsd_name]:
str = []
for (cmp, vers) in ver.versions:
bsd_ver = strip_bsd_version(vers)
str.append("%s %s %s %s" % (oe_name, oe_version, cmp, bsd_ver))
print " && ".join(str), ver.link
for package in freebsd.keys():
# handle the various versions of OE packages
handle_package(package, package)
handle_package("%s-native" % package, package)
handle_package("%s-full-native" % package, package)
handle_package("%s-sdk" % package, package)
# read the input data
oe_packages = read_available("available")
freebsd_vuln = read_auditfile("auditfile")
buggy = open("not_in_oe.bugs", "w+")
compare_versions(oe=oe_packages, freebsd=freebsd_vuln, not_known=buggy)
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