From 7e20228f4abf509e883093b79bf1f842b092f63b Mon Sep 17 00:00:00 2001
From: Peter Mikus <pmikus@cisco.com>
Date: Wed, 9 May 2018 06:16:31 +0000
Subject: FIX: SSH connect issue

error: [Errno 9] Bad file descriptor

Change-Id: I4c5278d41e979f6af43054e3b5890fb154555494
Signed-off-by: Peter Mikus <pmikus@cisco.com>
---
 resources/libraries/python/ssh.py | 36 ++++++++++++++----------------------
 1 file changed, 14 insertions(+), 22 deletions(-)

(limited to 'resources/libraries/python/ssh.py')

diff --git a/resources/libraries/python/ssh.py b/resources/libraries/python/ssh.py
index fe4404b053..5ff1b2d769 100644
--- a/resources/libraries/python/ssh.py
+++ b/resources/libraries/python/ssh.py
@@ -92,11 +92,11 @@ class SSH(object):
                          format(self._ssh.get_transport().getpeername()))
             logger.debug('Connections: {0}'.
                          format(str(SSH.__existing_connections)))
-        except RuntimeError as exc:
+        except:
             if attempts > 0:
                 self._reconnect(attempts-1)
             else:
-                raise exc
+                raise
 
     def disconnect(self, node):
         """Close SSH connection to the node.
@@ -236,8 +236,8 @@ class SSH(object):
     def interactive_terminal_open(self, time_out=30):
         """Open interactive terminal on a new channel on the connected Node.
 
-        FIXME: Convert or document other possible exceptions, such as
-        socket.error or SSHException.
+        :param time_out: Timeout in seconds.
+        :returns: SSH channel with opened terminal.
 
         .. warning:: Interruptingcow is used here, and it uses
            signal(SIGALRM) to let the operating system interrupt program
@@ -245,10 +245,6 @@ class SSH(object):
            handlers only apply to the main thread, so you cannot use this
            from other threads. You must not use this in a program that
            uses SIGALRM itself (this includes certain profilers)
-
-        :param time_out: Timeout in seconds.
-        :returns: SSH channel with opened terminal.
-        :raise IOError: If receive attempt results in socket.timeout.
         """
         chan = self._ssh.get_transport().open_session()
         chan.get_pty()
@@ -268,8 +264,7 @@ class SSH(object):
                     break
             except socket.timeout:
                 logger.error('Socket timeout: {0}'.format(buf))
-                # TODO: Find out which exception would callers appreciate here.
-                raise IOError('Socket timeout: {0}'.format(buf))
+                raise Exception('Socket timeout: {0}'.format(buf))
         return chan
 
     def interactive_terminal_exec_command(self, chan, cmd, prompt):
@@ -277,19 +272,18 @@ class SSH(object):
 
         interactive_terminal_open() method has to be called first!
 
+        :param chan: SSH channel with opened terminal.
+        :param cmd: Command to be executed.
+        :param prompt: Command prompt, sequence of characters used to
+        indicate readiness to accept commands.
+        :returns: Command output.
+
         .. warning:: Interruptingcow is used here, and it uses
            signal(SIGALRM) to let the operating system interrupt program
            execution. This has the following limitations: Python signal
            handlers only apply to the main thread, so you cannot use this
            from other threads. You must not use this in a program that
            uses SIGALRM itself (this includes certain profilers)
-
-        :param chan: SSH channel with opened terminal.
-        :param cmd: Command to be executed.
-        :param prompt: Command prompt, sequence of characters used to
-            indicate readiness to accept commands.
-        :returns: Command output.
-        :raise IOError: If receive attempt results in socket.timeout.
         """
         chan.sendall('{c}\n'.format(c=cmd))
         buf = ''
@@ -305,9 +299,8 @@ class SSH(object):
             except socket.timeout:
                 logger.error('Socket timeout during execution of command: '
                              '{0}\nBuffer content:\n{1}'.format(cmd, buf))
-                # TODO: Find out which exception would callers appreciate here.
-                raise IOError('Socket timeout during execution of command: '
-                              '{0}\nBuffer content:\n{1}'.format(cmd, buf))
+                raise Exception('Socket timeout during execution of command: '
+                                '{0}\nBuffer content:\n{1}'.format(cmd, buf))
         tmp = buf.replace(cmd.replace('\n', ''), '')
         for item in prompt:
             tmp.replace(item, '')
@@ -360,7 +353,6 @@ class SSH(object):
 def exec_cmd(node, cmd, timeout=600, sudo=False):
     """Convenience function to ssh/exec/return rc, out & err.
 
-    FIXME: Document :param, :type, :raise and similar.
     Returns (rc, stdout, stderr).
     """
     if node is None:
@@ -400,4 +392,4 @@ def exec_cmd_no_error(node, cmd, timeout=600, sudo=False):
     (ret_code, stdout, stderr) = exec_cmd(node, cmd, timeout=timeout, sudo=sudo)
     assert_equal(ret_code, 0, 'Command execution failed: "{}"\n{}'.
                  format(cmd, stderr))
-    return stdout, stderr
+    return stdout, stderr
\ No newline at end of file
-- 
cgit 1.2.3-korg