File do-not-crash-when-there-are-ipv6-established-connect.patch of Package salt

From f185eabfb4b529157cf7464b32beebeb8b944310 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pablo=20Su=C3=A1rez=20Hern=C3=A1ndez?=
 <psuarezhernandez@suse.com>
Date: Tue, 7 May 2019 15:33:51 +0100
Subject: [PATCH] Do not crash when there are IPv6 established
 connections (bsc#1130784)

Add unit test for '_netlink_tool_remote_on'
---
 salt/utils/network.py            |  9 +++++----
 tests/unit/utils/test_network.py | 16 ++++++++++++++++
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/salt/utils/network.py b/salt/utils/network.py
index c72d2aec41..3f0522b9a5 100644
--- a/salt/utils/network.py
+++ b/salt/utils/network.py
@@ -1457,7 +1457,7 @@ def _parse_tcp_line(line):
 
 def _netlink_tool_remote_on(port, which_end):
     '''
-    Returns set of ipv4 host addresses of remote established connections
+    Returns set of IPv4/IPv6 host addresses of remote established connections
     on local or remote tcp port.
 
     Parses output of shell 'ss' to get connections
@@ -1467,6 +1467,7 @@ def _netlink_tool_remote_on(port, which_end):
     LISTEN     0      511                              *:80                              *:*
     LISTEN     0      128                              *:22                              *:*
     ESTAB      0      0                      127.0.0.1:56726                  127.0.0.1:4505
+    ESTAB      0      0             [::ffff:127.0.0.1]:41323         [::ffff:127.0.0.1]:4505
     '''
     remotes = set()
     valid = False
@@ -1486,14 +1487,14 @@ def _netlink_tool_remote_on(port, which_end):
         elif 'ESTAB' not in line:
             continue
         chunks = line.split()
-        local_host, local_port = chunks[3].split(':', 1)
-        remote_host, remote_port = chunks[4].split(':', 1)
+        local_host, local_port = chunks[3].rsplit(':', 1)
+        remote_host, remote_port = chunks[4].rsplit(':', 1)
 
         if which_end == 'remote_port' and int(remote_port) != port:
             continue
         if which_end == 'local_port' and int(local_port) != port:
             continue
-        remotes.add(remote_host)
+        remotes.add(remote_host.strip("[]"))
 
     if valid is False:
         remotes = None
diff --git a/tests/unit/utils/test_network.py b/tests/unit/utils/test_network.py
index ca627777a7..ecf7d7c45b 100644
--- a/tests/unit/utils/test_network.py
+++ b/tests/unit/utils/test_network.py
@@ -120,6 +120,14 @@ USER     COMMAND    PID   FD PROTO  LOCAL ADDRESS    FOREIGN ADDRESS
 salt-master python2.781106 35 tcp4  127.0.0.1:61115  127.0.0.1:4506
 '''
 
+LINUX_NETLINK_SS_OUTPUT = '''\
+State       Recv-Q Send-Q                                                            Local Address:Port                                                                           Peer Address:Port
+TIME-WAIT   0      0                                                                         [::1]:8009                                                                                  [::1]:40368
+LISTEN      0      128                                                                   127.0.0.1:5903                                                                                0.0.0.0:*
+ESTAB       0      0                                                            [::ffff:127.0.0.1]:4506                                                                    [::ffff:127.0.0.1]:32315
+ESTAB       0      0                                                                 192.168.122.1:4506                                                                       192.168.122.177:24545
+'''
+
 IPV4_SUBNETS = {True: ('10.10.0.0/24',),
                 False: ('10.10.0.0', '10.10.0.0/33', 'FOO', 9, '0.9.800.1000/24')}
 IPV6_SUBNETS = {True: ('::1/128',),
@@ -453,6 +461,14 @@ class NetworkTestCase(TestCase):
                     remotes = network._freebsd_remotes_on('4506', 'remote')
                     self.assertEqual(remotes, set(['127.0.0.1']))
 
+    def test_netlink_tool_remote_on(self):
+        with patch('salt.utils.platform.is_sunos', lambda: False):
+            with patch('salt.utils.platform.is_linux', lambda: True):
+                with patch('subprocess.check_output',
+                           return_value=LINUX_NETLINK_SS_OUTPUT):
+                    remotes = network._netlink_tool_remote_on('4506', 'local')
+                    self.assertEqual(remotes, set(['192.168.122.177', '::ffff:127.0.0.1']))
+
     def test_generate_minion_id_distinct(self):
         '''
         Test if minion IDs are distinct in the pool.
-- 
2.17.1