2 files changed, 299 insertions, 0 deletions

diff --git a/meta/lib/oeqa/core/target/__init__.py b/meta/lib/oeqa/core/target/__init__.py
new file mode 100644
index 0000000000..d2468bc257
--- /dev/null
+++ b/meta/lib/oeqa/core/target/__init__.py
@@ -0,0 +1,33 @@
+# Copyright (C) 2016 Intel Corporation
+# Released under the MIT license (see COPYING.MIT)
+
+from abc import abstractmethod
+
+class OETarget(object):
+
+    def __init__(self, logger, *args, **kwargs):
+        self.logger = logger
+
+    @abstractmethod
+    def start(self):
+        pass
+
+    @abstractmethod
+    def stop(self):
+        pass
+
+    @abstractmethod
+    def run(self, cmd, timeout=None):
+        pass
+
+    @abstractmethod
+    def copyTo(self, localSrc, remoteDst):
+        pass
+
+    @abstractmethod
+    def copyFrom(self, remoteSrc, localDst):
+        pass
+
+    @abstractmethod
+    def copyDirTo(self, localSrc, remoteDst):
+        pass
diff --git a/meta/lib/oeqa/core/target/ssh.py b/meta/lib/oeqa/core/target/ssh.py
new file mode 100644
index 0000000000..b80939c0e5
--- /dev/null
+++ b/meta/lib/oeqa/core/target/ssh.py
@@ -0,0 +1,266 @@
+# Copyright (C) 2016 Intel Corporation
+# Released under the MIT license (see COPYING.MIT)
+
+import os
+import time
+import select
+import logging
+import subprocess
+
+from . import OETarget
+
+class OESSHTarget(OETarget):
+    def __init__(self, logger, ip, server_ip, timeout=300, user='root',
+                 port=None, **kwargs):
+        if not logger:
+            logger = logging.getLogger('target')
+            logger.setLevel(logging.INFO)
+            filePath = os.path.join(os.getcwd(), 'remoteTarget.log')
+            fileHandler = logging.FileHandler(filePath, 'w', 'utf-8')
+            formatter = logging.Formatter(
+                        '%(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
+                        '%H:%M:%S')
+            fileHandler.setFormatter(formatter)
+            logger.addHandler(fileHandler)
+
+        super(OESSHTarget, self).__init__(logger)
+        self.ip = ip
+        self.server_ip = server_ip
+        self.timeout = timeout
+        self.user = user
+        ssh_options = [
+                '-o', 'UserKnownHostsFile=/dev/null',
+                '-o', 'StrictHostKeyChecking=no',
+                '-o', 'LogLevel=ERROR'
+                ]
+        self.ssh = ['ssh', '-l', self.user ] + ssh_options
+        self.scp = ['scp'] + ssh_options
+        if port:
+            self.ssh = self.ssh + [ '-p', port ]
+            self.scp = self.scp + [ '-P', port ]
+
+    def start(self, **kwargs):
+        pass
+
+    def stop(self, **kwargs):
+        pass
+
+    def _run(self, command, timeout=None, ignore_status=True):
+        """
+            Runs command in target using SSHProcess.
+        """
+        self.logger.debug("[Running]$ %s" % " ".join(command))
+
+        starttime = time.time()
+        status, output = SSHCall(command, self.logger, timeout)
+        self.logger.debug("[Command returned '%d' after %.2f seconds]"
+                 "" % (status, time.time() - starttime))
+
+        if status and not ignore_status:
+            raise AssertionError("Command '%s' returned non-zero exit "
+                                 "status %d:\n%s" % (command, status, output))
+
+        return (status, output)
+
+    def run(self, command, timeout=None):
+        """
+            Runs command in target.
+
+            command:    Command to run on target.
+            timeout:    <value>:    Kill command after <val> seconds.
+                        None:       Kill command default value seconds.
+                        0:          No timeout, runs until return.
+        """
+        targetCmd = 'export PATH=/usr/sbin:/sbin:/usr/bin:/bin; %s' % command
+        sshCmd = self.ssh + [self.ip, targetCmd]
+
+        if timeout:
+            processTimeout = timeout
+        elif timeout==0:
+            processTimeout = None
+        else:
+            processTimeout = self.timeout
+
+        status, output = self._run(sshCmd, processTimeout, True)
+        self.logger.info('\nCommand: %s\nOutput:  %s\n' % (command, output))
+        return (status, output)
+
+    def copyTo(self, localSrc, remoteDst):
+        """
+            Copy file to target.
+
+            If local file is symlink, recreate symlink in target.
+        """
+        if os.path.islink(localSrc):
+            link = os.readlink(localSrc)
+            dstDir, dstBase = os.path.split(remoteDst)
+            sshCmd = 'cd %s; ln -s %s %s' % (dstDir, link, dstBase)
+            return self.run(sshCmd)
+
+        else:
+            remotePath = '%s@%s:%s' % (self.user, self.ip, remoteDst)
+            scpCmd = self.scp + [localSrc, remotePath]
+            return self._run(scpCmd, ignore_status=False)
+
+    def copyFrom(self, remoteSrc, localDst):
+        """
+            Copy file from target.
+        """
+        remotePath = '%s@%s:%s' % (self.user, self.ip, remoteSrc)
+        scpCmd = self.scp + [remotePath, localDst]
+        return self._run(scpCmd, ignore_status=False)
+
+    def copyDirTo(self, localSrc, remoteDst):
+        """
+            Copy recursively localSrc directory to remoteDst in target.
+        """
+
+        for root, dirs, files in os.walk(localSrc):
+            # Create directories in the target as needed
+            for d in dirs:
+                tmpDir = os.path.join(root, d).replace(localSrc, "")
+                newDir = os.path.join(remoteDst, tmpDir.lstrip("/"))
+                cmd = "mkdir -p %s" % newDir
+                self.run(cmd)
+
+            # Copy files into the target
+            for f in files:
+                tmpFile = os.path.join(root, f).replace(localSrc, "")
+                dstFile = os.path.join(remoteDst, tmpFile.lstrip("/"))
+                srcFile = os.path.join(root, f)
+                self.copyTo(srcFile, dstFile)
+
+    def deleteFiles(self, remotePath, files):
+        """
+            Deletes files in target's remotePath.
+        """
+
+        cmd = "rm"
+        if not isinstance(files, list):
+            files = [files]
+
+        for f in files:
+            cmd = "%s %s" % (cmd, os.path.join(remotePath, f))
+
+        self.run(cmd)
+
+
+    def deleteDir(self, remotePath):
+        """
+            Deletes target's remotePath directory.
+        """
+
+        cmd = "rmdir %s" % remotePath
+        self.run(cmd)
+
+
+    def deleteDirStructure(self, localPath, remotePath):
+        """
+        Delete recursively localPath structure directory in target's remotePath.
+
+        This function is very usefult to delete a package that is installed in
+        the DUT and the host running the test has such package extracted in tmp
+        directory.
+
+        Example:
+            pwd: /home/user/tmp
+            tree:   .
+                    └── work
+                        ├── dir1
+                        │   └── file1
+                        └── dir2
+
+            localpath = "/home/user/tmp" and remotepath = "/home/user"
+
+            With the above variables this function will try to delete the
+            directory in the DUT in this order:
+                /home/user/work/dir1/file1
+                /home/user/work/dir1        (if dir is empty)
+                /home/user/work/dir2        (if dir is empty)
+                /home/user/work             (if dir is empty)
+        """
+
+        for root, dirs, files in os.walk(localPath, topdown=False):
+            # Delete files first
+            tmpDir = os.path.join(root).replace(localPath, "")
+            remoteDir = os.path.join(remotePath, tmpDir.lstrip("/"))
+            self.deleteFiles(remoteDir, files)
+
+            # Remove dirs if empty
+            for d in dirs:
+                tmpDir = os.path.join(root, d).replace(localPath, "")
+                remoteDir = os.path.join(remotePath, tmpDir.lstrip("/"))
+                self.deleteDir(remoteDir)
+
+def SSHCall(command, logger, timeout=None, **opts):
+
+    def run():
+        nonlocal output
+        nonlocal process
+        starttime = time.time()
+        process = subprocess.Popen(command, **options)
+        if timeout:
+            endtime = starttime + timeout
+            eof = False
+            while time.time() < endtime and not eof:
+                logger.debug('time: %s, endtime: %s' % (time.time(), endtime))
+                try:
+                    if select.select([process.stdout], [], [], 5)[0] != []:
+                        data = os.read(process.stdout.fileno(), 1024)
+                        if not data:
+                            process.stdout.close()
+                            eof = True
+                        else:
+                            data = data.decode("utf-8")
+                            output += data
+                            logger.debug('Partial data from SSH call: %s' % data)
+                            endtime = time.time() + timeout
+                except InterruptedError:
+                    continue
+
+            # process hasn't returned yet
+            if not eof:
+                process.terminate()
+                time.sleep(5)
+                try:
+                    process.kill()
+                except OSError:
+                    pass
+                endtime = time.time() - starttime
+                lastline = ("\nProcess killed - no output for %d seconds. Total"
+                            " running time: %d seconds." % (timeout, endtime))
+                logger.debug('Received data from SSH call %s ' % lastline)
+                output += lastline
+
+        else:
+            output = process.communicate()[0].decode("utf-8")
+            logger.debug('Data from SSH call: %s' % output.rstrip())
+
+    options = {
+        "stdout": subprocess.PIPE,
+        "stderr": subprocess.STDOUT,
+        "stdin": None,
+        "shell": False,
+        "bufsize": -1,
+        "preexec_fn": os.setsid,
+    }
+    options.update(opts)
+    output = ''
+    process = None
+
+    # Unset DISPLAY which means we won't trigger SSH_ASKPASS
+    env = os.environ.copy()
+    if "DISPLAY" in env:
+        del env['DISPLAY']
+    options['env'] = env
+
+    try:
+        run()
+    except:
+        # Need to guard against a SystemExit or other exception ocurring
+        # whilst running and ensure we don't leave a process behind.
+        if process.poll() is None:
+            process.kill()
+        logger.debug('Something went wrong, killing SSH process')
+        raise
+    return (process.wait(), output.rstrip())