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General work on the Dynamips backend (need to finish and polish).

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grossmj
2014-01-31 16:31:34 -07:00
parent 2516bf80a8
commit cef29e53aa
74 changed files with 2762 additions and 433 deletions
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54
gns3server/modules/dynamips/dynamips_hypervisor.py
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@ -21,6 +21,7 @@ http://github.com/GNS3/dynamips/blob/master/README.hypervisor#L46
"""
import socket
import errno
import re
import logging
from .dynamips_error import DynamipsError
@ -54,6 +55,7 @@ class DynamipsHypervisor(object):
self._baseconsole = 2000
self._baseaux = 2100
self._baseudp = 10000
self._current_udp_port = self._baseudp
self._version = "N/A"
self._timeout = 30
self._socket = None
@ -145,7 +147,7 @@ class DynamipsHypervisor(object):
@working_dir.setter
def working_dir(self, working_dir):
"""
Set the working directory for this hypervisor.
Sets the working directory for this hypervisor.
:param working_dir: path to the working directory
"""
@ -198,7 +200,7 @@ class DynamipsHypervisor(object):
@devices.setter
def devices(self, devices):
"""
Set the list of devices managed by this hypervisor instance.
Sets the list of devices managed by this hypervisor instance.
This method is for internal use.
:param devices: a list of device objects
@ -219,7 +221,7 @@ class DynamipsHypervisor(object):
@baseconsole.setter
def baseconsole(self, baseconsole):
"""
Set the base console TCP port for this hypervisor.
Sets the base console TCP port for this hypervisor.
:param baseconsole: base console value (integer)
"""
@ -239,7 +241,7 @@ class DynamipsHypervisor(object):
@baseaux.setter
def baseaux(self, baseaux):
"""
Set the base auxiliary TCP port for this hypervisor.
Sets the base auxiliary TCP port for this hypervisor.
:param baseaux: base auxiliary port value (integer)
"""
@ -259,12 +261,16 @@ class DynamipsHypervisor(object):
@baseudp.setter
def baseudp(self, baseudp):
"""
Set the next open UDP port for NIOs for this hypervisor.
Sets the next open UDP port for NIOs for this hypervisor.
:param baseudp: base UDP port value (integer)
"""
self._baseudp = baseudp
self._current_udp_port = self._baseudp
#FIXME
log.info("hypervisor a new base UDP {}".format(self._baseudp))
@property
def ghosts(self):
@ -294,7 +300,7 @@ class DynamipsHypervisor(object):
:returns: JIT sharing groups dict (image_name -> group number)
"""
return self._ghosts
return self._jitsharing_groups
def add_jitsharing_group(self, image_name, group_number):
"""
@ -326,6 +332,42 @@ class DynamipsHypervisor(object):
return self._port
def allocate_udp_port(self, max_port=100):
"""
Allocates a new UDP port for creating an UDP NIO.
:param max_port: maximum number of port to scan in
order to find one available for use.
:returns: port number (integer)
"""
#FIXME: better check for IPv6
start_port = self._current_udp_port
print("start port = {}".format(start_port))
end_port = start_port + max_port
for port in range(start_port, end_port):
print(port)
if port > end_port:
raise DynamipsError("Could not find a free port between {0} and {1}".format(start_port, max_port))
try:
if self.host.__contains__(':'):
# IPv6 address support
s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
else:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# the port is available if bind is a success
s.bind((self._host, port))
#FIXME: increment?
self._current_udp_port += 1
print("current port = {}".format(self._current_udp_port))
return port
except socket.error as e:
if e.errno == errno.EADDRINUSE: # socket already in use
continue
else:
raise DynamipsError("UDP port allocation: {}".format(e))
def send_raw(self, string):
"""
Sends a raw command to this hypervisor. Use sparingly.