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Implement OpenSSH version comparison.

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This commit is contained in:
Andris Raugulis 2016-09-13 12:38:05 +03:00
parent 74a1ca08ee
commit 4479db966a
2 changed files with 68 additions and 6 deletions
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19
ssh-audit.py
View File

@ -258,17 +258,24 @@ class SSH(object):
return -1
elif self.version > oversion:
return 1
spatch = self.patch
if self.product == SSH.Product.DropbearSSH:
if not re.match(r'^test\d.*$', opatch):
opatch = 'z{0}'.format(opatch)
if not re.match(r'^test\d.*$', self.patch):
spatch = 'z{0}'.format(self.patch)
else:
spatch = self.patch
if spatch < opatch:
return -1
elif spatch > opatch:
return 1
elif self.product == SSH.Product.OpenSSH:
mx1 = re.match(r'^p\d(.*)', opatch)
mx2 = re.match(r'^p\d(.*)', self.patch)
if not (mx1 and mx2):
if mx1:
opatch = mx1.group(1)
if mx2:
spatch = mx2.group(1)
if spatch < opatch:
return -1
elif spatch > opatch:
return 1
return 0
def between_versions(self, vfrom, vtill):

55
test/test_version_compare.py
View File

@ -11,6 +11,10 @@ class TestVersionCompare(object):
b = self.ssh.Banner.parse('SSH-2.0-dropbear_{0}'.format(v))
return self.ssh.Software.parse(b)
def get_openssh_software(self, v):
b = self.ssh.Banner.parse('SSH-2.0-OpenSSH_{0}'.format(v))
return self.ssh.Software.parse(b)
def test_dropbear_compare_version_pre_years(self):
s = self.get_dropbear_software('0.44')
assert s.compare_version('0.43') > 0
@ -75,3 +79,54 @@ class TestVersionCompare(object):
if i + 1 < l:
vnext = versions[i + 1]
assert s.compare_version(vnext) < 0
def test_openssh_compare_version_simple(self):
s = self.get_openssh_software('3.7.1')
assert s.compare_version('3.7') > 0
assert s.compare_version('3.7.1') == 0
assert s.compare_version('3.8') < 0
assert s.between_versions('3.7', '3.8') == True
def test_openssh_compare_version_patchlevel(self):
s1 = self.get_openssh_software('2.1.1')
s2 = self.get_openssh_software('2.1.1p2')
assert s1.compare_version('2.1.1p1') == 0
assert s1.compare_version('2.1.1p2') == 0
assert s2.compare_version('2.1.1') == 0
assert s2.compare_version('2.1.1p1') > 0
assert s2.compare_version('2.1.1p3') < 0
def test_openbsd_compare_version_sequential(self):
versions = []
for v in ['1.2.3', '2.1.0', '2.1.1', '2.2.0', '2.3.0']:
versions.append(v)
for v in ['2.5.0', '2.5.1', '2.5.2', '2.9', '2.9.9']:
versions.append(v)
for v in ['3.0', '3.0.1', '3.0.2', '3.1', '3.2.2', '3.2.3']:
versions.append(v)
for i in range(3, 7):
versions.append('3.{0}'.format(i))
for v in ['3.6.1', '3.7.0', '3.7.1']:
versions.append(v)
for i in range(8, 10):
versions.append('3.{0}'.format(i))
for i in range(0, 10):
versions.append('4.{0}'.format(i))
for i in range(0, 10):
versions.append('5.{0}'.format(i))
for i in range(0, 10):
versions.append('6.{0}'.format(i))
for i in range(0, 4):
versions.append('7.{0}'.format(i))
l = len(versions)
for i in range(l):
v = versions[i]
s = self.get_openssh_software(v)
assert s.compare_version(v) == 0
if i - 1 >= 0:
vbefore = versions[i - 1]
assert s.compare_version(vbefore) > 0
if i + 1 < l:
vnext = versions[i + 1]
assert s.compare_version(vnext) < 0