1 files changed, 102 insertions, 0 deletions
diff --git a/tester/rt/tftpy/TftpClient.py b/tester/rt/tftpy/TftpClient.py
new file mode 100644
index 0000000..2763dda
--- /dev/null
+++ b/tester/rt/tftpy/TftpClient.py
@@ -0,0 +1,102 @@
+"""This module implements the TFTP Client functionality. Instantiate an
+instance of the client, and then use its upload or download method. Logging is
+performed via a standard logging object set in TftpShared."""
+
+from __future__ import absolute_import, division, print_function, unicode_literals
+import types
+from .TftpShared import *
+from .TftpPacketTypes import *
+from .TftpContexts import TftpContextClientDownload, TftpContextClientUpload
+
+class TftpClient(TftpSession):
+    """This class is an implementation of a tftp client. Once instantiated, a
+    download can be initiated via the download() method, or an upload via the
+    upload() method."""
+
+    def __init__(self, host, port=69, options={}, localip = ""):
+        TftpSession.__init__(self)
+        self.context = None
+        self.host = host
+        self.iport = port
+        self.filename = None
+        self.options = options
+        self.localip = localip
+        if 'blksize' in self.options:
+            size = self.options['blksize']
+            tftpassert(types.IntType == type(size), "blksize must be an int")
+            if size < MIN_BLKSIZE or size > MAX_BLKSIZE:
+                raise TftpException("Invalid blksize: %d" % size)
+
+    def download(self, filename, output, packethook=None, timeout=SOCK_TIMEOUT):
+        """This method initiates a tftp download from the configured remote
+        host, requesting the filename passed. It writes the file to output,
+        which can be a file-like object or a path to a local file. If a
+        packethook is provided, it must be a function that takes a single
+        parameter, which will be a copy of each DAT packet received in the
+        form of a TftpPacketDAT object. The timeout parameter may be used to
+        override the default SOCK_TIMEOUT setting, which is the amount of time
+        that the client will wait for a receive packet to arrive.
+
+        Note: If output is a hyphen, stdout is used."""
+        # We're downloading.
+        log.debug("Creating download context with the following params:")
+        log.debug("host = %s, port = %s, filename = %s" % (self.host, self.iport, filename))
+        log.debug("options = %s, packethook = %s, timeout = %s" % (self.options, packethook, timeout))
+        self.context = TftpContextClientDownload(self.host,
+                                                 self.iport,
+                                                 filename,
+                                                 output,
+                                                 self.options,
+                                                 packethook,
+                                                 timeout,
+                                                 localip = self.localip)
+        self.context.start()
+        # Download happens here
+        self.context.end()
+
+        metrics = self.context.metrics
+
+        log.info('')
+        log.info("Download complete.")
+        if metrics.duration == 0:
+            log.info("Duration too short, rate undetermined")
+        else:
+            log.info("Downloaded %.2f bytes in %.2f seconds" % (metrics.bytes, metrics.duration))
+            log.info("Average rate: %.2f kbps" % metrics.kbps)
+        log.info("%.2f bytes in resent data" % metrics.resent_bytes)
+        log.info("Received %d duplicate packets" % metrics.dupcount)
+
+    def upload(self, filename, input, packethook=None, timeout=SOCK_TIMEOUT):
+        """This method initiates a tftp upload to the configured remote host,
+        uploading the filename passed. It reads the file from input, which
+        can be a file-like object or a path to a local file. If a packethook
+        is provided, it must be a function that takes a single parameter,
+        which will be a copy of each DAT packet sent in the form of a
+        TftpPacketDAT object. The timeout parameter may be used to override
+        the default SOCK_TIMEOUT setting, which is the amount of time that
+        the client will wait for a DAT packet to be ACKd by the server.
+
+        Note: If input is a hyphen, stdin is used."""
+        self.context = TftpContextClientUpload(self.host,
+                                               self.iport,
+                                               filename,
+                                               input,
+                                               self.options,
+                                               packethook,
+                                               timeout,
+                                               localip = self.localip)
+        self.context.start()
+        # Upload happens here
+        self.context.end()
+
+        metrics = self.context.metrics
+
+        log.info('')
+        log.info("Upload complete.")
+        if metrics.duration == 0:
+            log.info("Duration too short, rate undetermined")
+        else:
+            log.info("Uploaded %d bytes in %.2f seconds" % (metrics.bytes, metrics.duration))
+            log.info("Average rate: %.2f kbps" % metrics.kbps)
+        log.info("%.2f bytes in resent data" % metrics.resent_bytes)
+        log.info("Resent %d packets" % metrics.dupcount)