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a6f80f0e | 1 | #!/usr/bin/python |
3e8ee54f | 2 | # |
904908bc | 3 | # Copyright 2014 Cumulus Networks, Inc. All rights reserved. |
3e8ee54f | 4 | # Author: Roopa Prabhu, roopa@cumulusnetworks.com |
5 | # | |
6 | # ifupdownMain -- | |
7 | # ifupdown main module | |
8 | # | |
a6f80f0e | 9 | |
10 | import os | |
11 | import re | |
3e8ee54f | 12 | import imp |
13 | import pprint | |
14 | import logging | |
15 | import sys, traceback | |
cb7cc592 | 16 | import copy |
2cd06f78 | 17 | import json |
a6f80f0e | 18 | from statemanager import * |
19 | from networkinterfaces import * | |
20 | from iface import * | |
21 | from scheduler import * | |
22 | from collections import deque | |
23 | from collections import OrderedDict | |
a6f80f0e | 24 | from graph import * |
3e8ee54f | 25 | from sets import Set |
a6f80f0e | 26 | |
2c0ad8b3 RP |
27 | """ |
28 | .. module:: ifupdownmain | |
29 | :synopsis: main module for ifupdown package | |
30 | ||
31 | .. moduleauthor:: Roopa Prabhu <roopa@cumulusnetworks.com> | |
32 | ||
33 | """ | |
34 | ||
86fc62e2 | 35 | _tickmark = u'\u2713' |
36 | _crossmark = u'\u2717' | |
e74d01e1 RP |
37 | _success_sym = '(%s)' %_tickmark |
38 | _error_sym = '(%s)' %_crossmark | |
86fc62e2 | 39 | |
84ca006f RP |
40 | class ifupdownFlags(): |
41 | FORCE = False | |
42 | DRYRUN = False | |
43 | NOWAIT = False | |
44 | PERFMODE = False | |
45 | CACHE = False | |
46 | ||
47 | # Flags | |
48 | CACHE_FLAGS = 0x0 | |
49 | ||
be0b20f2 | 50 | class ifupdownMain(ifupdownBase): |
53b00224 | 51 | """ ifupdown2 main class """ |
52 | ||
a6f80f0e | 53 | # Flags |
cca03c30 | 54 | WITH_DEPENDS = False |
a6f80f0e | 55 | ALL = False |
5ee3e1a8 | 56 | IFACE_CLASS = False |
6bd7fc74 | 57 | COMPAT_EXEC_SCRIPTS = False |
20dd6242 | 58 | STATEMANAGER_ENABLE = True |
59 | STATEMANAGER_UPDATE = True | |
60 | ADDONS_ENABLE = False | |
a6f80f0e | 61 | |
37c0543d | 62 | # priv flags to mark iface objects |
63 | BUILTIN = 0x1 | |
64 | NOCONFIG = 0x2 | |
65 | ||
66 | scripts_dir='/etc/network' | |
67 | addon_modules_dir='/usr/share/ifupdownaddons' | |
14dc390d | 68 | addon_modules_configfile='/var/lib/ifupdownaddons/addons.conf' |
a6f80f0e | 69 | |
70 | # iface dictionary in the below format: | |
71 | # { '<ifacename>' : [<ifaceobject1>, <ifaceobject2> ..] } | |
72 | # eg: | |
53b00224 | 73 | # { 'swp1' : [<iface swp1>, <iface swp2> ..] } |
a6f80f0e | 74 | # |
75 | # Each ifaceobject corresponds to a configuration block for | |
76 | # that interface | |
53b00224 | 77 | # The value in the dictionary is a list because the network |
78 | # interface configuration file supports more than one iface section | |
79 | # in the interfaces file | |
a6f80f0e | 80 | ifaceobjdict = OrderedDict() |
81 | ||
a6f80f0e | 82 | # iface dictionary representing the curr running state of an iface |
83 | # in the below format: | |
84 | # {'<ifacename>' : <ifaceobject>} | |
85 | ifaceobjcurrdict = OrderedDict() | |
86 | ||
be0b20f2 | 87 | # Dictionary representing operation and modules |
88 | # for every operation | |
89 | module_ops = OrderedDict([('pre-up', []), | |
d08d5f54 | 90 | ('up' , []), |
91 | ('post-up' , []), | |
92 | ('query-checkcurr', []), | |
93 | ('query-running', []), | |
94 | ('query-dependency', []), | |
75730152 | 95 | ('query', []), |
96 | ('query-raw', []), | |
d08d5f54 | 97 | ('pre-down', []), |
98 | ('down' , []), | |
99 | ('post-down' , [])]) | |
37c0543d | 100 | |
101 | # For old style /etc/network/ bash scripts | |
be0b20f2 | 102 | script_ops = OrderedDict([('pre-up', []), |
d08d5f54 | 103 | ('up' , []), |
104 | ('post-up' , []), | |
105 | ('pre-down', []), | |
106 | ('down' , []), | |
107 | ('post-down' , [])]) | |
a6f80f0e | 108 | |
be0b20f2 | 109 | # Handlers for ops that ifupdown2 owns |
110 | def run_up(self, ifaceobj): | |
b48ff1a9 RP |
111 | # If this object is a link slave, ie its link is controlled |
112 | # by its link master interface, then dont set the link state. | |
113 | # But do allow user to change state of the link if the interface | |
114 | # is already with its link master (hence the master check). | |
c416da6a | 115 | if ((ifaceobj.link_type == ifaceLinkType.LINK_SLAVE) and |
b48ff1a9 RP |
116 | not os.path.exists('/sys/class/net/%s/master' %ifaceobj.name)): |
117 | return | |
118 | if self.link_exists(ifaceobj.name): | |
119 | self.link_up(ifaceobj.name) | |
be0b20f2 | 120 | |
121 | def run_down(self, ifaceobj): | |
b48ff1a9 RP |
122 | # If this object is a link slave, ie its link is controlled |
123 | # by its link master interface, then dont set the link state. | |
124 | # But do allow user to change state of the link if the interface | |
125 | # is already with its link master (hence the master check). | |
c416da6a | 126 | if ((ifaceobj.link_type == ifaceLinkType.LINK_SLAVE) and |
b48ff1a9 RP |
127 | not os.path.exists('/sys/class/net/%s/master' %ifaceobj.name)): |
128 | return | |
129 | if self.link_exists(ifaceobj.name): | |
130 | self.link_down(ifaceobj.name) | |
be0b20f2 | 131 | |
31a5f4c3 | 132 | # ifupdown object interface operation handlers |
be0b20f2 | 133 | ops_handlers = OrderedDict([('up', run_up), |
134 | ('down', run_down)]) | |
a6f80f0e | 135 | |
cb7cc592 | 136 | def run_sched_ifaceobj_posthook(self, ifaceobj, op): |
5c721925 | 137 | if ((ifaceobj.priv_flags & self.BUILTIN) or |
138 | (ifaceobj.priv_flags & self.NOCONFIG)): | |
139 | return | |
20dd6242 | 140 | if self.STATEMANAGER_UPDATE: |
cb7cc592 | 141 | self.statemanager.ifaceobj_sync(ifaceobj, op) |
31a5f4c3 | 142 | |
143 | # ifupdown object interface scheduler pre and posthooks | |
144 | sched_hooks = {'posthook' : run_sched_ifaceobj_posthook} | |
145 | ||
14dc390d | 146 | def __init__(self, config={}, |
147 | force=False, dryrun=False, nowait=False, | |
cca03c30 | 148 | perfmode=False, withdepends=False, njobs=1, |
14dc390d | 149 | cache=False, addons_enable=True, statemanager_enable=True, |
3dcc1d0e | 150 | interfacesfile='/etc/network/interfaces', |
151 | interfacesfileiobuf=None, | |
152 | interfacesfileformat='native'): | |
2c0ad8b3 RP |
153 | """This member function initializes the ifupdownmain object. |
154 | ||
155 | Kwargs: | |
156 | config (dict): config dict from /etc/network/ifupdown2/ifupdown2.conf | |
157 | force (bool): force interface configuration | |
158 | dryrun (bool): dryrun interface configuration | |
159 | withdepends (bool): apply interface configuration on all depends | |
160 | interfacesfile (str): interfaces file. default is /etc/network/interfaces | |
161 | interfacesfileformat (str): default is 'native'. Other choices are 'json' | |
162 | ||
163 | Raises: | |
164 | AttributeError, KeyError """ | |
165 | ||
a6f80f0e | 166 | self.logger = logging.getLogger('ifupdown') |
eab25b7c | 167 | self.FORCE = force |
168 | self.DRYRUN = dryrun | |
169 | self.NOWAIT = nowait | |
170 | self.PERFMODE = perfmode | |
cca03c30 | 171 | self.WITH_DEPENDS = withdepends |
20dd6242 | 172 | self.STATEMANAGER_ENABLE = statemanager_enable |
739f665b | 173 | self.CACHE = cache |
14dc390d | 174 | self.interfacesfile = interfacesfile |
3dcc1d0e | 175 | self.interfacesfileiobuf = interfacesfileiobuf |
176 | self.interfacesfileformat = interfacesfileformat | |
14dc390d | 177 | self.config = config |
178 | self.logger.debug(self.config) | |
a690dfae | 179 | |
2da58137 RP |
180 | self.type = ifaceType.UNKNOWN |
181 | ||
a690dfae | 182 | # Can be used to provide hints for caching |
183 | self.CACHE_FLAGS = 0x0 | |
37c0543d | 184 | self._DELETE_DEPENDENT_IFACES_WITH_NOCONFIG = False |
20dd6242 | 185 | self.ADDONS_ENABLE = addons_enable |
eab25b7c | 186 | |
84ca006f RP |
187 | # Copy flags into ifupdownFlags |
188 | # XXX: before we transition fully to ifupdownFlags | |
189 | ifupdownFlags.FORCE = force | |
190 | ifupdownFlags.DRYRUN = dryrun | |
191 | ifupdownFlags.NOWAIT = nowait | |
192 | ifupdownFlags.PERFMODE = perfmode | |
193 | ifupdownFlags.CACHE = cache | |
194 | ||
a6f80f0e | 195 | self.ifaces = OrderedDict() |
eab25b7c | 196 | self.njobs = njobs |
a6f80f0e | 197 | self.pp = pprint.PrettyPrinter(indent=4) |
37c0543d | 198 | self.modules = OrderedDict({}) |
d08d5f54 | 199 | self.module_attrs = {} |
20dd6242 | 200 | |
37c0543d | 201 | self.load_addon_modules(self.addon_modules_dir) |
e938bfec | 202 | if self.COMPAT_EXEC_SCRIPTS: |
203 | self.load_scripts(self.scripts_dir) | |
d08d5f54 | 204 | self.dependency_graph = OrderedDict({}) |
a6f80f0e | 205 | |
8e113d63 RP |
206 | self._cache_no_repeats = {} |
207 | ||
20dd6242 | 208 | if self.STATEMANAGER_ENABLE: |
209 | try: | |
210 | self.statemanager = stateManager() | |
211 | self.statemanager.read_saved_state() | |
212 | except Exception, e: | |
213 | # XXX Maybe we should continue by ignoring old state | |
214 | self.logger.warning('error reading state (%s)' %str(e)) | |
215 | raise | |
216 | else: | |
217 | self.STATEMANAGER_UPDATE = False | |
a6f80f0e | 218 | |
31a5f4c3 | 219 | def get_ifaceobjs(self, ifacename): |
a6f80f0e | 220 | return self.ifaceobjdict.get(ifacename) |
221 | ||
31a5f4c3 | 222 | def get_ifaceobj_first(self, ifacename): |
223 | ifaceobjs = self.get_ifaceobjs(ifacename) | |
224 | if ifaceobjs: | |
a6f80f0e | 225 | return ifaceobjs[0] |
226 | return None | |
227 | ||
c798b0f4 | 228 | def get_ifacenames(self): |
229 | return self.ifaceobjdict.keys() | |
230 | ||
a6f80f0e | 231 | def get_iface_obj_last(self, ifacename): |
232 | return self.ifaceobjdict.get(ifacename)[-1] | |
233 | ||
8c13865c RP |
234 | def must_follow_upperifaces(self, ifacename): |
235 | # | |
236 | # XXX: This bleeds the knowledge of iface | |
237 | # types in the infrastructure module. | |
238 | # Cant think of a better fix at the moment. | |
239 | # In future maybe the module can set a flag | |
240 | # to indicate if we should follow upperifaces | |
241 | # | |
242 | ifaceobj = self.get_ifaceobj_first(ifacename) | |
cb46a208 | 243 | if ifaceobj.type == ifaceType.BRIDGE_VLAN: |
8c13865c RP |
244 | return False |
245 | return True | |
246 | ||
53b00224 | 247 | def create_n_save_ifaceobj(self, ifacename, priv_flags=None, |
248 | increfcnt=False): | |
249 | """ creates a iface object and adds it to the iface dictionary """ | |
250 | ifaceobj = iface() | |
251 | ifaceobj.name = ifacename | |
252 | ifaceobj.priv_flags = priv_flags | |
253 | ifaceobj.auto = True | |
254 | if increfcnt: | |
255 | ifaceobj.inc_refcnt() | |
256 | self.ifaceobjdict[ifacename] = [ifaceobj] | |
257 | return ifaceobj | |
258 | ||
d08d5f54 | 259 | def create_n_save_ifaceobjcurr(self, ifaceobj): |
923290bd | 260 | """ creates a copy of iface object and adds it to the iface |
261 | dict containing current iface objects | |
53b00224 | 262 | """ |
739f665b | 263 | ifaceobjcurr = iface() |
53b00224 | 264 | ifaceobjcurr.name = ifaceobj.name |
cb46a208 | 265 | ifaceobjcurr.type = ifaceobj.type |
62ddec8b | 266 | ifaceobjcurr.lowerifaces = ifaceobj.lowerifaces |
267 | ifaceobjcurr.priv_flags = ifaceobj.priv_flags | |
2cd06f78 | 268 | ifaceobjcurr.auto = ifaceobj.auto |
923290bd | 269 | self.ifaceobjcurrdict.setdefault(ifaceobj.name, |
270 | []).append(ifaceobjcurr) | |
d08d5f54 | 271 | return ifaceobjcurr |
a6f80f0e | 272 | |
923290bd | 273 | def get_ifaceobjcurr(self, ifacename, idx=0): |
274 | ifaceobjlist = self.ifaceobjcurrdict.get(ifacename) | |
275 | if not ifaceobjlist: | |
276 | return None | |
277 | if not idx: | |
278 | return ifaceobjlist | |
279 | else: | |
280 | return ifaceobjlist[idx] | |
a6f80f0e | 281 | |
739f665b | 282 | def get_ifaceobjrunning(self, ifacename): |
283 | return self.ifaceobjrunningdict.get(ifacename) | |
284 | ||
a6f80f0e | 285 | def get_iface_refcnt(self, ifacename): |
53b00224 | 286 | """ Return iface ref count """ |
a6f80f0e | 287 | max = 0 |
31a5f4c3 | 288 | ifaceobjs = self.get_ifaceobjs(ifacename) |
20dd6242 | 289 | if not ifaceobjs: |
290 | return 0 | |
a6f80f0e | 291 | for i in ifaceobjs: |
62ddec8b | 292 | if i.refcnt > max: |
293 | max = i.refcnt | |
a6f80f0e | 294 | return max |
295 | ||
d08d5f54 | 296 | def is_iface_builtin_byname(self, ifacename): |
cca03c30 | 297 | """ Returns true if iface name is a builtin interface. |
a6f80f0e | 298 | |
cca03c30 | 299 | A builtin interface is an interface which ifupdown understands. |
300 | The following are currently considered builtin ifaces: | |
301 | - vlan interfaces in the format <ifacename>.<vlanid> | |
a6f80f0e | 302 | """ |
d08d5f54 | 303 | return '.' in ifacename |
a6f80f0e | 304 | |
37c0543d | 305 | def is_ifaceobj_builtin(self, ifaceobj): |
306 | """ Returns true if iface name is a builtin interface. | |
307 | ||
308 | A builtin interface is an interface which ifupdown understands. | |
309 | The following are currently considered builtin ifaces: | |
310 | - vlan interfaces in the format <ifacename>.<vlanid> | |
311 | """ | |
d08d5f54 | 312 | return (ifaceobj.priv_flags & self.BUILTIN) |
37c0543d | 313 | |
314 | def is_ifaceobj_noconfig(self, ifaceobj): | |
53b00224 | 315 | """ Returns true if iface object did not have a user defined config. |
37c0543d | 316 | |
317 | These interfaces appear only when they are dependents of interfaces | |
318 | which have user defined config | |
319 | """ | |
d08d5f54 | 320 | return (ifaceobj.priv_flags & self.NOCONFIG) |
37c0543d | 321 | |
d08d5f54 | 322 | def is_iface_noconfig(self, ifacename): |
323 | """ Returns true if iface has no config """ | |
37c0543d | 324 | |
31a5f4c3 | 325 | ifaceobj = self.get_ifaceobj_first(ifacename) |
d08d5f54 | 326 | if not ifaceobj: return True |
d08d5f54 | 327 | return self.is_ifaceobj_noconfig(ifaceobj) |
328 | ||
b48ff1a9 | 329 | def preprocess_dependency_list(self, upperifaceobj, dlist, ops): |
739f665b | 330 | """ We go through the dependency list and |
331 | delete or add interfaces from the interfaces dict by | |
332 | applying the following rules: | |
333 | if flag _DELETE_DEPENDENT_IFACES_WITH_NOCONFIG is True: | |
334 | we only consider devices whose configuration was | |
335 | specified in the network interfaces file. We delete | |
336 | any interface whose config was not specified except | |
337 | for vlan devices. vlan devices get special treatment. | |
338 | Even if they are not present they are created and added | |
339 | to the ifacesdict | |
340 | elif flag _DELETE_DEPENDENT_IFACES_WITH_NOCONFIG is False: | |
341 | we create objects for all dependent devices that are not | |
342 | present in the ifacesdict | |
343 | """ | |
a6f80f0e | 344 | del_list = [] |
345 | ||
a6f80f0e | 346 | for d in dlist: |
31a5f4c3 | 347 | dilist = self.get_ifaceobjs(d) |
d08d5f54 | 348 | if not dilist: |
b48ff1a9 | 349 | ni = None |
d08d5f54 | 350 | if self.is_iface_builtin_byname(d): |
b48ff1a9 RP |
351 | ni = self.create_n_save_ifaceobj(d, self.BUILTIN | self.NOCONFIG, |
352 | True) | |
f3215127 | 353 | elif not self._DELETE_DEPENDENT_IFACES_WITH_NOCONFIG: |
b48ff1a9 RP |
354 | ni = self.create_n_save_ifaceobj(d, self.NOCONFIG, |
355 | True) | |
a6f80f0e | 356 | else: |
a6f80f0e | 357 | del_list.append(d) |
b48ff1a9 RP |
358 | if ni: |
359 | ni.add_to_upperifaces(upperifaceobj.name) | |
c416da6a RP |
360 | if upperifaceobj.link_type == ifaceLinkType.LINK_MASTER: |
361 | ni.link_type = ifaceLinkType.LINK_SLAVE | |
a6f80f0e | 362 | else: |
363 | for di in dilist: | |
364 | di.inc_refcnt() | |
b48ff1a9 | 365 | di.add_to_upperifaces(upperifaceobj.name) |
5be7399d | 366 | if upperifaceobj.link_type == ifaceLinkType.LINK_MASTER: |
c416da6a | 367 | di.link_type = ifaceLinkType.LINK_SLAVE |
a6f80f0e | 368 | |
369 | for d in del_list: | |
370 | dlist.remove(d) | |
371 | ||
2da58137 | 372 | def query_dependents(self, ifaceobj, ops, ifacenames, type=None): |
a6f80f0e | 373 | """ Gets iface dependents by calling into respective modules """ |
41febf89 | 374 | ret_dlist = [] |
a6f80f0e | 375 | |
20dd6242 | 376 | # Get dependents for interface by querying respective modules |
ee3fcf44 | 377 | for module in self.modules.values(): |
7949b8a5 | 378 | try: |
379 | if ops[0] == 'query-running': | |
380 | if (not hasattr(module, | |
381 | 'get_dependent_ifacenames_running')): | |
382 | continue | |
383 | dlist = module.get_dependent_ifacenames_running(ifaceobj) | |
384 | else: | |
385 | if (not hasattr(module, 'get_dependent_ifacenames')): | |
386 | continue | |
387 | dlist = module.get_dependent_ifacenames(ifaceobj, | |
ee3fcf44 | 388 | ifacenames) |
7949b8a5 | 389 | except Exception, e: |
390 | self.logger.warn('%s: error getting dependent interfaces (%s)' | |
391 | %(ifaceobj.name, str(e))) | |
392 | dlist = None | |
393 | pass | |
41febf89 | 394 | if dlist: ret_dlist.extend(dlist) |
84ca006f | 395 | return list(set(ret_dlist)) |
20dd6242 | 396 | |
e1601369 RP |
397 | def populate_dependency_info(self, ops, ifacenames=None): |
398 | """ recursive function to generate iface dependency info """ | |
399 | ||
400 | if not ifacenames: | |
401 | ifacenames = self.ifaceobjdict.keys() | |
402 | ||
403 | iqueue = deque(ifacenames) | |
404 | while iqueue: | |
405 | i = iqueue.popleft() | |
406 | # Go through all modules and find dependent ifaces | |
407 | dlist = None | |
408 | ifaceobj = self.get_ifaceobj_first(i) | |
409 | if not ifaceobj: | |
410 | continue | |
411 | dlist = ifaceobj.lowerifaces | |
412 | if not dlist: | |
413 | dlist = self.query_dependents(ifaceobj, ops, ifacenames) | |
414 | else: | |
415 | continue | |
416 | if dlist: | |
b48ff1a9 | 417 | self.preprocess_dependency_list(ifaceobj, |
e1601369 RP |
418 | dlist, ops) |
419 | ifaceobj.lowerifaces = dlist | |
420 | [iqueue.append(d) for d in dlist] | |
421 | if not self.dependency_graph.get(i): | |
422 | self.dependency_graph[i] = dlist | |
423 | ||
8e113d63 RP |
424 | def _check_config_no_repeats(self, ifaceobj): |
425 | """ check if object has an attribute that is | |
426 | restricted to a single object in the system. | |
427 | if yes, warn and return """ | |
428 | for k,v in self._cache_no_repeats.items(): | |
429 | iv = ifaceobj.config.get(k) | |
430 | if iv and iv[0] == v: | |
431 | self.logger.error('ignoring interface %s. ' %ifaceobj.name + | |
432 | 'Only one object with attribute ' + | |
433 | '\'%s %s\' allowed.' %(k, v)) | |
434 | return True | |
435 | for k, v in self.config.get('no_repeats', {}).items(): | |
436 | iv = ifaceobj.config.get(k) | |
437 | if iv and iv[0] == v: | |
438 | self._cache_no_repeats[k] = v | |
439 | return False | |
a6f80f0e | 440 | |
41febf89 | 441 | def _save_iface(self, ifaceobj): |
8e113d63 RP |
442 | if self._check_config_no_repeats(ifaceobj): |
443 | return | |
679e6567 RP |
444 | currentifaceobjlist = self.ifaceobjdict.get(ifaceobj.name) |
445 | if not currentifaceobjlist: | |
446 | self.ifaceobjdict[ifaceobj.name]= [ifaceobj] | |
447 | return | |
448 | if ifaceobj.compare(currentifaceobjlist[0]): | |
449 | self.logger.warn('duplicate interface %s found' %ifaceobj.name) | |
450 | return | |
8e113d63 RP |
451 | if currentifaceobjlist[0].type == ifaceobj.type: |
452 | currentifaceobjlist[0].flags |= iface.HAS_SIBLINGS | |
453 | ifaceobj.flags |= iface.HAS_SIBLINGS | |
679e6567 | 454 | self.ifaceobjdict[ifaceobj.name].append(ifaceobj) |
41febf89 | 455 | |
3dcc1d0e | 456 | def _iface_configattr_syntax_checker(self, attrname, attrval): |
d08d5f54 | 457 | for m, mdict in self.module_attrs.items(): |
7949b8a5 | 458 | if not mdict: |
459 | continue | |
d08d5f54 | 460 | attrsdict = mdict.get('attrs') |
7949b8a5 | 461 | try: |
462 | if attrsdict.get(attrname): | |
463 | return True | |
464 | except AttributeError: | |
465 | pass | |
d08d5f54 | 466 | return False |
467 | ||
3dcc1d0e | 468 | def _ifaceobj_syntax_checker(self, ifaceobj): |
469 | err = False | |
8e113d63 | 470 | for attrname, attrvalue in ifaceobj.config.items(): |
3dcc1d0e | 471 | found = False |
472 | for k, v in self.module_attrs.items(): | |
473 | if v and v.get('attrs', {}).get(attrname): | |
474 | found = True | |
475 | break | |
476 | if not found: | |
477 | err = True | |
478 | self.logger.warn('%s: unsupported attribute \'%s\'' %attrname) | |
479 | continue | |
480 | return err | |
481 | ||
14dc390d | 482 | def read_iface_config(self): |
a6f80f0e | 483 | """ Reads default network interface config /etc/network/interfaces. """ |
14dc390d | 484 | nifaces = networkInterfaces(self.interfacesfile, |
3dcc1d0e | 485 | self.interfacesfileiobuf, |
486 | self.interfacesfileformat, | |
14dc390d | 487 | template_engine=self.config.get('template_engine'), |
488 | template_lookuppath=self.config.get('template_lookuppath')) | |
d08d5f54 | 489 | nifaces.subscribe('iface_found', self._save_iface) |
3dcc1d0e | 490 | nifaces.subscribe('validateifaceattr', |
491 | self._iface_configattr_syntax_checker) | |
492 | nifaces.subscribe('validateifaceobj', self._ifaceobj_syntax_checker) | |
a6f80f0e | 493 | nifaces.load() |
494 | ||
a6f80f0e | 495 | def read_old_iface_config(self): |
14dc390d | 496 | """ Reads the saved iface config instead of default iface config. |
497 | And saved iface config is already read by the statemanager """ | |
cb7cc592 | 498 | self.ifaceobjdict = copy.deepcopy(self.statemanager.ifaceobjdict) |
a6f80f0e | 499 | |
53b00224 | 500 | def _load_addon_modules_config(self): |
501 | """ Load addon modules config file """ | |
a6f80f0e | 502 | |
37c0543d | 503 | with open(self.addon_modules_configfile, 'r') as f: |
504 | lines = f.readlines() | |
505 | for l in lines: | |
c0071225 | 506 | litems = l.rstrip(' \n\t\r').split(',') |
37c0543d | 507 | operation = litems[0] |
508 | mname = litems[1] | |
be0b20f2 | 509 | self.module_ops[operation].append(mname) |
37c0543d | 510 | |
511 | def load_addon_modules(self, modules_dir): | |
a6f80f0e | 512 | """ load python modules from modules_dir |
513 | ||
514 | Default modules_dir is /usr/share/ifupdownmodules | |
515 | ||
516 | """ | |
a6f80f0e | 517 | self.logger.info('loading builtin modules from %s' %modules_dir) |
53b00224 | 518 | self._load_addon_modules_config() |
a6f80f0e | 519 | if not modules_dir in sys.path: |
37c0543d | 520 | sys.path.append(modules_dir) |
a6f80f0e | 521 | try: |
be0b20f2 | 522 | for op, mlist in self.module_ops.items(): |
d08d5f54 | 523 | for mname in mlist: |
53b00224 | 524 | if self.modules.get(mname): |
d08d5f54 | 525 | continue |
526 | mpath = modules_dir + '/' + mname + '.py' | |
527 | if os.path.exists(mpath): | |
528 | try: | |
529 | m = __import__(mname) | |
530 | mclass = getattr(m, mname) | |
531 | except: | |
532 | raise | |
533 | minstance = mclass(force=self.FORCE, | |
534 | dryrun=self.DRYRUN, | |
535 | nowait=self.NOWAIT, | |
536 | perfmode=self.PERFMODE, | |
a690dfae | 537 | cache=self.CACHE, |
538 | cacheflags=self.CACHE_FLAGS) | |
d08d5f54 | 539 | self.modules[mname] = minstance |
53b00224 | 540 | try: |
d08d5f54 | 541 | self.module_attrs[mname] = minstance.get_modinfo() |
53b00224 | 542 | except: |
543 | pass | |
a6f80f0e | 544 | except: |
545 | raise | |
546 | ||
37c0543d | 547 | # Assign all modules to query operations |
be0b20f2 | 548 | self.module_ops['query-checkcurr'] = self.modules.keys() |
549 | self.module_ops['query-running'] = self.modules.keys() | |
550 | self.module_ops['query-dependency'] = self.modules.keys() | |
551 | self.module_ops['query'] = self.modules.keys() | |
552 | self.module_ops['query-raw'] = self.modules.keys() | |
d08d5f54 | 553 | |
14dc390d | 554 | |
53b00224 | 555 | def _modules_help(self): |
556 | """ Prints addon modules supported syntax """ | |
557 | ||
d08d5f54 | 558 | indent = ' ' |
559 | for m, mdict in self.module_attrs.items(): | |
560 | if not mdict: | |
561 | continue | |
562 | print('%s: %s' %(m, mdict.get('mhelp'))) | |
563 | attrdict = mdict.get('attrs') | |
564 | if not attrdict: | |
565 | continue | |
566 | try: | |
567 | for attrname, attrvaldict in attrdict.items(): | |
568 | if attrvaldict.get('compat', False): | |
569 | continue | |
570 | print('%s%s' %(indent, attrname)) | |
571 | print('%shelp: %s' %(indent + ' ', | |
572 | attrvaldict.get('help', ''))) | |
573 | print ('%srequired: %s' %(indent + ' ', | |
574 | attrvaldict.get('required', False))) | |
575 | default = attrvaldict.get('default') | |
576 | if default: | |
577 | print('%sdefault: %s' %(indent + ' ', default)) | |
578 | ||
579 | validrange = attrvaldict.get('validrange') | |
580 | if validrange: | |
1b0b81a2 | 581 | print('%svalidrange: %s-%s' |
7949b8a5 | 582 | %(indent + ' ', validrange[0], validrange[1])) |
d08d5f54 | 583 | |
584 | validvals = attrvaldict.get('validvals') | |
585 | if validvals: | |
586 | print('%svalidvals: %s' | |
587 | %(indent + ' ', ','.join(validvals))) | |
588 | ||
589 | examples = attrvaldict.get('example') | |
590 | if not examples: | |
591 | continue | |
a6f80f0e | 592 | |
d08d5f54 | 593 | print '%sexample:' %(indent + ' ') |
594 | for e in examples: | |
595 | print '%s%s' %(indent + ' ', e) | |
596 | except: | |
597 | pass | |
598 | print '' | |
599 | ||
37c0543d | 600 | def load_scripts(self, modules_dir): |
a6f80f0e | 601 | """ loading user modules from /etc/network/. |
602 | ||
603 | Note that previously loaded python modules override modules found | |
604 | under /etc/network if any | |
605 | ||
606 | """ | |
607 | ||
37c0543d | 608 | self.logger.info('looking for user scripts under %s' %modules_dir) |
be0b20f2 | 609 | for op, mlist in self.script_ops.items(): |
d08d5f54 | 610 | msubdir = modules_dir + '/if-%s.d' %op |
611 | self.logger.info('loading scripts under %s ...' %msubdir) | |
612 | try: | |
613 | module_list = os.listdir(msubdir) | |
614 | for module in module_list: | |
615 | if self.modules.get(module) is not None: | |
616 | continue | |
be0b20f2 | 617 | self.script_ops[op].append( |
a6f80f0e | 618 | msubdir + '/' + module) |
d08d5f54 | 619 | except: |
f802fe3c | 620 | # continue reading |
621 | pass | |
a6f80f0e | 622 | |
ad25e7bb | 623 | def _sched_ifaces(self, ifacenames, ops, skipupperifaces=False): |
c798b0f4 | 624 | self.logger.debug('scheduling \'%s\' for %s' |
d08d5f54 | 625 | %(str(ops), str(ifacenames))) |
7538dc77 | 626 | self._pretty_print_ordered_dict('dependency graph', |
627 | self.dependency_graph) | |
c798b0f4 | 628 | return ifaceScheduler.sched_ifaces(self, ifacenames, ops, |
629 | dependency_graph=self.dependency_graph, | |
d08d5f54 | 630 | order=ifaceSchedulerFlags.INORDER |
631 | if 'down' in ops[0] | |
c798b0f4 | 632 | else ifaceSchedulerFlags.POSTORDER, |
ad25e7bb RP |
633 | followdependents=True if self.WITH_DEPENDS else False, |
634 | skipupperifaces=skipupperifaces) | |
a6f80f0e | 635 | |
41febf89 RP |
636 | def _render_ifacename(self, ifacename): |
637 | new_ifacenames = [] | |
679e6567 | 638 | vlan_match = re.match("^([\d]+)-([\d]+)", ifacename) |
41febf89 RP |
639 | if vlan_match: |
640 | vlan_groups = vlan_match.groups() | |
641 | if vlan_groups[0] and vlan_groups[1]: | |
679e6567 | 642 | [new_ifacenames.append('%d' %v) |
41febf89 RP |
643 | for v in range(int(vlan_groups[0]), |
644 | int(vlan_groups[1])+1)] | |
645 | return new_ifacenames | |
646 | ||
647 | def _preprocess_ifacenames(self, ifacenames): | |
a6f80f0e | 648 | """ validates interface list for config existance. |
649 | ||
650 | returns -1 if one or more interface not found. else, returns 0 | |
651 | ||
652 | """ | |
41febf89 | 653 | new_ifacenames = [] |
a6f80f0e | 654 | err_iface = '' |
655 | for i in ifacenames: | |
31a5f4c3 | 656 | ifaceobjs = self.get_ifaceobjs(i) |
657 | if not ifaceobjs: | |
41febf89 | 658 | # if name not available, render interface name and check again |
679e6567 | 659 | rendered_ifacenames = utils.expand_iface_range(i) |
41febf89 RP |
660 | if rendered_ifacenames: |
661 | for ri in rendered_ifacenames: | |
662 | ifaceobjs = self.get_ifaceobjs(ri) | |
663 | if not ifaceobjs: | |
664 | err_iface += ' ' + ri | |
665 | else: | |
666 | new_ifacenames.append(ri) | |
667 | else: | |
668 | err_iface += ' ' + i | |
669 | else: | |
670 | new_ifacenames.append(i) | |
fe0a57d3 | 671 | if err_iface: |
31c58787 | 672 | raise Exception('cannot find interfaces:%s' %err_iface) |
41febf89 | 673 | return new_ifacenames |
a6f80f0e | 674 | |
53b00224 | 675 | def _iface_whitelisted(self, auto, allow_classes, excludepats, ifacename): |
a6f80f0e | 676 | """ Checks if interface is whitelisted depending on set of parameters. |
677 | ||
a6f80f0e | 678 | interfaces are checked against the allow_classes and auto lists. |
679 | ||
680 | """ | |
fe0a57d3 | 681 | if excludepats: |
3e8ee54f | 682 | for e in excludepats: |
d08d5f54 | 683 | if re.search(e, ifacename): |
3e8ee54f | 684 | return False |
31a5f4c3 | 685 | ifaceobjs = self.get_ifaceobjs(ifacename) |
686 | if not ifaceobjs: | |
a6f80f0e | 687 | self.logger.debug('iface %s' %ifacename + ' not found') |
688 | return False | |
a6f80f0e | 689 | # We check classes first |
fe0a57d3 | 690 | if allow_classes: |
a6f80f0e | 691 | for i in ifaceobjs: |
62ddec8b | 692 | if i.classes: |
3e8ee54f | 693 | common = Set([allow_classes]).intersection( |
62ddec8b | 694 | Set(i.classes)) |
fe0a57d3 | 695 | if common: |
a6f80f0e | 696 | return True |
697 | return False | |
d08d5f54 | 698 | if auto: |
a6f80f0e | 699 | for i in ifaceobjs: |
62ddec8b | 700 | if i.auto: |
a6f80f0e | 701 | return True |
702 | return False | |
a6f80f0e | 703 | return True |
704 | ||
53b00224 | 705 | def _compat_conv_op_to_mode(self, op): |
706 | """ Returns old op name to work with existing scripts """ | |
707 | if op == 'pre-up': | |
708 | return 'start' | |
709 | elif op == 'pre-down': | |
710 | return 'stop' | |
711 | else: | |
712 | return op | |
713 | ||
a6f80f0e | 714 | def generate_running_env(self, ifaceobj, op): |
739f665b | 715 | """ Generates a dictionary with env variables required for |
716 | an interface. Used to support script execution for interfaces. | |
a6f80f0e | 717 | """ |
718 | ||
719 | cenv = None | |
62ddec8b | 720 | iface_env = ifaceobj.env |
721 | if iface_env: | |
a6f80f0e | 722 | cenv = os.environ |
d08d5f54 | 723 | if cenv: |
a6f80f0e | 724 | cenv.update(iface_env) |
725 | else: | |
726 | cenv = iface_env | |
53b00224 | 727 | cenv['MODE'] = self._compat_conv_op_to_mode(op) |
a6f80f0e | 728 | return cenv |
729 | ||
53b00224 | 730 | def _save_state(self): |
20dd6242 | 731 | if not self.STATEMANAGER_ENABLE or not self.STATEMANAGER_UPDATE: |
732 | return | |
733 | try: | |
734 | # Update persistant iface states | |
735 | self.statemanager.save_state() | |
736 | except Exception, e: | |
737 | if self.logger.isEnabledFor(logging.DEBUG): | |
738 | t = sys.exc_info()[2] | |
739 | traceback.print_tb(t) | |
740 | self.logger.warning('error saving state (%s)' %str(e)) | |
741 | ||
2da58137 RP |
742 | def set_type(self, type): |
743 | if type == 'iface': | |
744 | self.type = ifaceType.IFACE | |
745 | elif type == 'vlan': | |
746 | self.type = ifaceType.BRIDGE_VLAN | |
747 | else: | |
748 | self.type = ifaceType.UNKNOWN | |
749 | ||
d08d5f54 | 750 | def up(self, ops, auto=False, allow_classes=None, ifacenames=None, |
2da58137 | 751 | excludepats=None, printdependency=None, syntaxcheck=False, |
ad25e7bb | 752 | type=None, skipupperifaces=False): |
2c0ad8b3 RP |
753 | """This brings the interface(s) up |
754 | ||
755 | Args: | |
41febf89 RP |
756 | ops (list): list of ops to perform on the interface(s). |
757 | Eg: ['pre-up', 'up', 'post-up' | |
2c0ad8b3 RP |
758 | |
759 | Kwargs: | |
760 | auto (bool): act on interfaces marked auto | |
761 | allow_classes (list): act on interfaces belonging to classes in the list | |
762 | ifacenames (list): act on interfaces specified in this list | |
763 | excludepats (list): list of patterns of interfaces to exclude | |
764 | syntaxcheck (bool): only perform syntax check | |
765 | """ | |
53b00224 | 766 | |
2da58137 RP |
767 | self.set_type(type) |
768 | ||
5ee3e1a8 RP |
769 | if allow_classes: |
770 | self.IFACE_CLASS = True | |
7538dc77 | 771 | if not self.ADDONS_ENABLE: self.STATEMANAGER_UPDATE = False |
d08d5f54 | 772 | if auto: |
a6f80f0e | 773 | self.ALL = True |
cca03c30 | 774 | self.WITH_DEPENDS = True |
d08d5f54 | 775 | try: |
776 | self.read_iface_config() | |
62ddec8b | 777 | except Exception: |
d08d5f54 | 778 | raise |
a6f80f0e | 779 | |
9dce3561 | 780 | # If only syntax check was requested, return here |
781 | if syntaxcheck: | |
782 | return | |
783 | ||
31a5f4c3 | 784 | if ifacenames: |
41febf89 | 785 | ifacenames = self._preprocess_ifacenames(ifacenames) |
a6f80f0e | 786 | |
787 | # if iface list not given by user, assume all from config file | |
31a5f4c3 | 788 | if not ifacenames: ifacenames = self.ifaceobjdict.keys() |
a6f80f0e | 789 | |
790 | # filter interfaces based on auto and allow classes | |
cca03c30 | 791 | filtered_ifacenames = [i for i in ifacenames |
53b00224 | 792 | if self._iface_whitelisted(auto, allow_classes, |
d08d5f54 | 793 | excludepats, i)] |
fe0a57d3 | 794 | if not filtered_ifacenames: |
d08d5f54 | 795 | raise Exception('no ifaces found matching given allow lists') |
a6f80f0e | 796 | |
20dd6242 | 797 | if printdependency: |
c798b0f4 | 798 | self.populate_dependency_info(ops, filtered_ifacenames) |
d08d5f54 | 799 | self.print_dependency(filtered_ifacenames, printdependency) |
739f665b | 800 | return |
cca03c30 | 801 | else: |
c798b0f4 | 802 | self.populate_dependency_info(ops) |
803 | ||
525f0a30 | 804 | try: |
ad25e7bb RP |
805 | self._sched_ifaces(filtered_ifacenames, ops, |
806 | skipupperifaces=skipupperifaces) | |
525f0a30 | 807 | finally: |
808 | if not self.DRYRUN and self.ADDONS_ENABLE: | |
809 | self._save_state() | |
a6f80f0e | 810 | |
d08d5f54 | 811 | def down(self, ops, auto=False, allow_classes=None, ifacenames=None, |
2da58137 RP |
812 | excludepats=None, printdependency=None, usecurrentconfig=False, |
813 | type=None): | |
53b00224 | 814 | """ down an interface """ |
815 | ||
2da58137 RP |
816 | self.set_type(type) |
817 | ||
5ee3e1a8 RP |
818 | if allow_classes: |
819 | self.IFACE_CLASS = True | |
7538dc77 | 820 | if not self.ADDONS_ENABLE: self.STATEMANAGER_UPDATE = False |
d08d5f54 | 821 | if auto: |
822 | self.ALL = True | |
823 | self.WITH_DEPENDS = True | |
5c721925 | 824 | # For down we need to look at old state, unless usecurrentconfig |
825 | # is set | |
826 | if (not usecurrentconfig and self.STATEMANAGER_ENABLE and | |
53b00224 | 827 | self.statemanager.ifaceobjdict): |
31a5f4c3 | 828 | # Since we are using state manager objects, |
829 | # skip the updating of state manager objects | |
5c721925 | 830 | self.logger.debug('Looking at old state ..') |
d08d5f54 | 831 | self.read_old_iface_config() |
fe0a57d3 | 832 | else: |
d08d5f54 | 833 | # If no old state available |
d08d5f54 | 834 | try: |
835 | self.read_iface_config() | |
836 | except Exception, e: | |
837 | raise Exception('error reading iface config (%s)' %str(e)) | |
d08d5f54 | 838 | if ifacenames: |
839 | # If iface list is given by the caller, always check if iface | |
840 | # is present | |
31c58787 | 841 | try: |
41febf89 | 842 | ifacenames = self._preprocess_ifacenames(ifacenames) |
31c58787 | 843 | except Exception, e: |
844 | raise Exception('%s' %str(e) + | |
845 | ' (interface was probably never up ?)') | |
846 | ||
d08d5f54 | 847 | # if iface list not given by user, assume all from config file |
fe0a57d3 | 848 | if not ifacenames: ifacenames = self.ifaceobjdict.keys() |
53b00224 | 849 | |
d08d5f54 | 850 | # filter interfaces based on auto and allow classes |
851 | filtered_ifacenames = [i for i in ifacenames | |
53b00224 | 852 | if self._iface_whitelisted(auto, allow_classes, |
d08d5f54 | 853 | excludepats, i)] |
fe0a57d3 | 854 | if not filtered_ifacenames: |
c0071225 | 855 | raise Exception('no ifaces found matching given allow lists ' + |
41febf89 | 856 | '(or interfaces were probably never up ?)') |
14dc390d | 857 | |
d08d5f54 | 858 | if printdependency: |
99b212b0 | 859 | self.populate_dependency_info(ops, filtered_ifacenames) |
d08d5f54 | 860 | self.print_dependency(filtered_ifacenames, printdependency) |
861 | return | |
99b212b0 | 862 | else: |
863 | self.populate_dependency_info(ops) | |
525f0a30 | 864 | |
865 | try: | |
866 | self._sched_ifaces(filtered_ifacenames, ops) | |
867 | finally: | |
868 | if not self.DRYRUN and self.ADDONS_ENABLE: | |
869 | self._save_state() | |
d08d5f54 | 870 | |
871 | def query(self, ops, auto=False, allow_classes=None, ifacenames=None, | |
739f665b | 872 | excludepats=None, printdependency=None, |
2da58137 | 873 | format='native', type=None): |
53b00224 | 874 | """ query an interface """ |
875 | ||
2da58137 RP |
876 | self.set_type(type) |
877 | ||
5ee3e1a8 RP |
878 | if allow_classes: |
879 | self.IFACE_CLASS = True | |
5c721925 | 880 | if self.STATEMANAGER_ENABLE and ops[0] == 'query-savedstate': |
881 | return self.statemanager.dump_pretty(ifacenames) | |
20dd6242 | 882 | self.STATEMANAGER_UPDATE = False |
d08d5f54 | 883 | if auto: |
739f665b | 884 | self.logger.debug('setting flag ALL') |
885 | self.ALL = True | |
37c0543d | 886 | self.WITH_DEPENDS = True |
739f665b | 887 | |
d08d5f54 | 888 | if ops[0] == 'query-syntax': |
53b00224 | 889 | self._modules_help() |
d08d5f54 | 890 | return |
891 | elif ops[0] == 'query-running': | |
739f665b | 892 | # create fake devices to all dependents that dont have config |
37c0543d | 893 | map(lambda i: self.create_n_save_ifaceobj(i, self.NOCONFIG), |
894 | ifacenames) | |
739f665b | 895 | else: |
896 | try: | |
897 | self.read_iface_config() | |
898 | except Exception: | |
899 | raise | |
900 | ||
53b00224 | 901 | if ifacenames and ops[0] != 'query-running': |
41febf89 RP |
902 | # If iface list is given, always check if iface is present |
903 | ifacenames = self._preprocess_ifacenames(ifacenames) | |
739f665b | 904 | |
905 | # if iface list not given by user, assume all from config file | |
31a5f4c3 | 906 | if not ifacenames: ifacenames = self.ifaceobjdict.keys() |
739f665b | 907 | |
908 | # filter interfaces based on auto and allow classes | |
d08d5f54 | 909 | if ops[0] == 'query-running': |
739f665b | 910 | filtered_ifacenames = ifacenames |
911 | else: | |
912 | filtered_ifacenames = [i for i in ifacenames | |
53b00224 | 913 | if self._iface_whitelisted(auto, allow_classes, |
d08d5f54 | 914 | excludepats, i)] |
fe0a57d3 | 915 | if not filtered_ifacenames: |
739f665b | 916 | raise Exception('no ifaces found matching ' + |
917 | 'given allow lists') | |
37c0543d | 918 | |
e1601369 | 919 | self.populate_dependency_info(ops) |
d08d5f54 | 920 | if ops[0] == 'query-dependency' and printdependency: |
921 | self.print_dependency(filtered_ifacenames, printdependency) | |
922 | return | |
739f665b | 923 | |
75730152 | 924 | if ops[0] == 'query': |
925 | return self.print_ifaceobjs_pretty(filtered_ifacenames, format) | |
926 | elif ops[0] == 'query-raw': | |
927 | return self.print_ifaceobjs_raw(filtered_ifacenames) | |
928 | ||
53b00224 | 929 | self._sched_ifaces(filtered_ifacenames, ops) |
739f665b | 930 | |
d08d5f54 | 931 | if ops[0] == 'query-checkcurr': |
932 | ret = self.print_ifaceobjscurr_pretty(filtered_ifacenames, format) | |
739f665b | 933 | if ret != 0: |
934 | # if any of the object has an error, signal that silently | |
935 | raise Exception('') | |
d08d5f54 | 936 | elif ops[0] == 'query-running': |
937 | self.print_ifaceobjsrunning_pretty(filtered_ifacenames, format) | |
739f665b | 938 | return |
939 | ||
2da58137 RP |
940 | def _reload_currentlyup(self, upops, downops, auto=True, allow=None, |
941 | ifacenames=None, excludepats=None, usecurrentconfig=False, | |
942 | **extra_args): | |
943 | """ reload currently up interfaces """ | |
739f665b | 944 | allow_classes = [] |
c0071225 | 945 | new_ifaceobjdict = {} |
739f665b | 946 | |
2da58137 RP |
947 | # Override auto to true |
948 | auto = True | |
97382e88 RP |
949 | if auto: |
950 | self.ALL = True | |
951 | self.WITH_DEPENDS = True | |
2da58137 RP |
952 | |
953 | try: | |
954 | self.read_iface_config() | |
955 | except: | |
956 | raise | |
2da58137 RP |
957 | if not self.ifaceobjdict: |
958 | self.logger.warn("nothing to reload ..exiting.") | |
959 | return | |
2da58137 RP |
960 | already_up_ifacenames = [] |
961 | # generate dependency graph of interfaces | |
962 | self.populate_dependency_info(upops) | |
963 | if (not usecurrentconfig and self.STATEMANAGER_ENABLE | |
964 | and self.statemanager.ifaceobjdict): | |
965 | already_up_ifacenames = self.statemanager.ifaceobjdict.keys() | |
966 | ||
967 | if not ifacenames: ifacenames = self.ifaceobjdict.keys() | |
968 | filtered_ifacenames = [i for i in ifacenames | |
969 | if self._iface_whitelisted(auto, allow_classes, | |
970 | excludepats, i)] | |
971 | ||
972 | # Get already up interfaces that still exist in the interfaces file | |
973 | already_up_ifacenames_not_present = Set( | |
974 | already_up_ifacenames).difference(ifacenames) | |
975 | already_up_ifacenames_still_present = Set( | |
976 | already_up_ifacenames).difference( | |
977 | already_up_ifacenames_not_present) | |
978 | interfaces_to_up = Set(already_up_ifacenames_still_present).union( | |
979 | filtered_ifacenames) | |
980 | ||
981 | if (already_up_ifacenames_not_present and | |
982 | self.config.get('ifreload_currentlyup_down_notpresent') == '1'): | |
983 | self.logger.info('reload: schedule down on interfaces: %s' | |
984 | %str(already_up_ifacenames_not_present)) | |
985 | ||
986 | # Save a copy of new iface objects and dependency_graph | |
987 | new_ifaceobjdict = dict(self.ifaceobjdict) | |
988 | new_dependency_graph = dict(self.dependency_graph) | |
989 | ||
990 | # old interface config is read into self.ifaceobjdict | |
991 | self.read_old_iface_config() | |
992 | ||
993 | # reinitialize dependency graph | |
994 | self.dependency_graph = OrderedDict({}) | |
995 | self.populate_dependency_info(downops, | |
996 | already_up_ifacenames_not_present) | |
997 | self._sched_ifaces(already_up_ifacenames_not_present, downops) | |
998 | else: | |
999 | self.logger.debug('no interfaces to down ..') | |
1000 | ||
1001 | # Now, run 'up' with new config dict | |
1002 | # reset statemanager update flag to default | |
1003 | if new_ifaceobjdict: | |
1004 | self.ifaceobjdict = new_ifaceobjdict | |
1005 | self.dependency_graph = new_dependency_graph | |
1006 | ||
1007 | if not self.ifaceobjdict: | |
1008 | return | |
1009 | self.logger.info('reload: scheduling up on interfaces: %s' | |
1010 | %str(interfaces_to_up)) | |
1011 | self._sched_ifaces(interfaces_to_up, upops) | |
1012 | if self.DRYRUN: | |
1013 | return | |
1014 | self._save_state() | |
1015 | ||
1016 | def _reload_default(self, upops, downops, auto=False, allow=None, | |
1017 | ifacenames=None, excludepats=None, usecurrentconfig=False, | |
1018 | **extra_args): | |
1019 | """ reload interface config """ | |
1020 | allow_classes = [] | |
1021 | new_ifaceobjdict = {} | |
739f665b | 1022 | |
97382e88 RP |
1023 | if auto: |
1024 | self.ALL = True | |
1025 | self.WITH_DEPENDS = True | |
739f665b | 1026 | try: |
1027 | self.read_iface_config() | |
20dd6242 | 1028 | except: |
739f665b | 1029 | raise |
1030 | ||
c0071225 RP |
1031 | if not self.ifaceobjdict: |
1032 | self.logger.warn("nothing to reload ..exiting.") | |
1033 | return | |
37c0543d | 1034 | # generate dependency graph of interfaces |
c798b0f4 | 1035 | self.populate_dependency_info(upops) |
14dc390d | 1036 | if (not usecurrentconfig and self.STATEMANAGER_ENABLE |
1037 | and self.statemanager.ifaceobjdict): | |
1038 | # Save a copy of new iface objects and dependency_graph | |
1039 | new_ifaceobjdict = dict(self.ifaceobjdict) | |
1040 | new_dependency_graph = dict(self.dependency_graph) | |
37c0543d | 1041 | |
739f665b | 1042 | # if old state is present, read old state and mark op for 'down' |
1043 | # followed by 'up' aka: reload | |
37c0543d | 1044 | # old interface config is read into self.ifaceobjdict |
739f665b | 1045 | self.read_old_iface_config() |
1046 | op = 'reload' | |
1047 | else: | |
1048 | # oldconfig not available, continue with 'up' with new config | |
1049 | op = 'up' | |
1050 | ||
20dd6242 | 1051 | if not ifacenames: ifacenames = self.ifaceobjdict.keys() |
fe0a57d3 | 1052 | if op == 'reload' and ifacenames: |
739f665b | 1053 | filtered_ifacenames = [i for i in ifacenames |
53b00224 | 1054 | if self._iface_whitelisted(auto, allow_classes, |
d08d5f54 | 1055 | excludepats, i)] |
37c0543d | 1056 | # Generate the interface down list |
1057 | # Interfaces that go into the down list: | |
1058 | # - interfaces that were present in last config and are not | |
1059 | # present in the new config | |
1060 | # - interfaces that were changed between the last and current | |
1061 | # config | |
1062 | # | |
37c0543d | 1063 | ifacedownlist = [] |
2da58137 RP |
1064 | for ifname in filtered_ifacenames: |
1065 | lastifaceobjlist = self.ifaceobjdict.get(ifname) | |
37c0543d | 1066 | objidx = 0 |
37c0543d | 1067 | # If interface is not present in the new file |
1068 | # append it to the down list | |
53b00224 | 1069 | newifaceobjlist = new_ifaceobjdict.get(ifname) |
1070 | if not newifaceobjlist: | |
37c0543d | 1071 | ifacedownlist.append(ifname) |
1072 | continue | |
37c0543d | 1073 | # If interface has changed between the current file |
1074 | # and the last installed append it to the down list | |
53b00224 | 1075 | if len(newifaceobjlist) != len(lastifaceobjlist): |
37c0543d | 1076 | ifacedownlist.append(ifname) |
1077 | continue | |
37c0543d | 1078 | # compare object list |
53b00224 | 1079 | for objidx in range(0, len(lastifaceobjlist)): |
1080 | oldobj = lastifaceobjlist[objidx] | |
1081 | newobj = newifaceobjlist[objidx] | |
ca3f4fc7 | 1082 | if not newobj.compare(oldobj): |
37c0543d | 1083 | ifacedownlist.append(ifname) |
1084 | continue | |
1085 | ||
fe0a57d3 | 1086 | if ifacedownlist: |
2da58137 | 1087 | self.logger.info('reload: scheduling down on interfaces: %s' |
739f665b | 1088 | %str(ifacedownlist)) |
20dd6242 | 1089 | # reinitialize dependency graph |
1090 | self.dependency_graph = OrderedDict({}) | |
37c0543d | 1091 | # Generate dependency info for old config |
14dc390d | 1092 | self.populate_dependency_info(downops, ifacedownlist) |
53b00224 | 1093 | self._sched_ifaces(ifacedownlist, downops) |
37c0543d | 1094 | else: |
1095 | self.logger.debug('no interfaces to down ..') | |
739f665b | 1096 | |
20dd6242 | 1097 | # Now, run 'up' with new config dict |
1098 | # reset statemanager update flag to default | |
c0071225 RP |
1099 | if not new_ifaceobjdict: |
1100 | return | |
53b00224 | 1101 | self.ifaceobjdict = new_ifaceobjdict |
1102 | self.dependency_graph = new_dependency_graph | |
739f665b | 1103 | ifacenames = self.ifaceobjdict.keys() |
1104 | filtered_ifacenames = [i for i in ifacenames | |
53b00224 | 1105 | if self._iface_whitelisted(auto, allow_classes, |
d08d5f54 | 1106 | excludepats, i)] |
c798b0f4 | 1107 | |
2da58137 RP |
1108 | self.logger.info('reload: scheduling up on interfaces: %s' |
1109 | %str(filtered_ifacenames)) | |
53b00224 | 1110 | self._sched_ifaces(filtered_ifacenames, upops) |
e37ad4a6 | 1111 | if self.DRYRUN: |
1112 | return | |
53b00224 | 1113 | self._save_state() |
a6f80f0e | 1114 | |
2da58137 RP |
1115 | def reload(self, *args, **kargs): |
1116 | """ reload interface config """ | |
2da58137 RP |
1117 | self.logger.debug('reloading interface config ..') |
1118 | if kargs.get('currentlyup', False): | |
1119 | self._reload_currentlyup(*args, **kargs) | |
1120 | else: | |
1121 | self._reload_default(*args, **kargs) | |
1122 | ||
7538dc77 | 1123 | def _pretty_print_ordered_dict(self, prefix, argdict): |
525f0a30 | 1124 | outbuf = prefix + ' {\n' |
53b00224 | 1125 | for k, vlist in argdict.items(): |
525f0a30 | 1126 | outbuf += '\t%s : %s\n' %(k, str(vlist)) |
7538dc77 | 1127 | self.logger.debug(outbuf + '}') |
a6f80f0e | 1128 | |
53b00224 | 1129 | def print_dependency(self, ifacenames, format): |
1130 | """ prints iface dependency information """ | |
a6f80f0e | 1131 | |
53b00224 | 1132 | if not ifacenames: |
1133 | ifacenames = self.ifaceobjdict.keys() | |
1134 | if format == 'list': | |
1135 | for k,v in self.dependency_graph.items(): | |
1136 | print '%s : %s' %(k, str(v)) | |
1137 | elif format == 'dot': | |
1138 | indegrees = {} | |
1139 | map(lambda i: indegrees.update({i : | |
1140 | self.get_iface_refcnt(i)}), | |
1141 | self.dependency_graph.keys()) | |
1142 | graph.generate_dots(self.dependency_graph, indegrees) | |
a6f80f0e | 1143 | |
739f665b | 1144 | def print_ifaceobjs_raw(self, ifacenames): |
53b00224 | 1145 | """ prints raw lines for ifaces from config file """ |
1146 | ||
739f665b | 1147 | for i in ifacenames: |
31a5f4c3 | 1148 | for ifaceobj in self.get_ifaceobjs(i): |
75730152 | 1149 | if (self.is_ifaceobj_builtin(ifaceobj) or |
1150 | not ifaceobj.is_config_present()): | |
1151 | continue | |
1152 | ifaceobj.dump_raw(self.logger) | |
739f665b | 1153 | print '\n' |
339026c8 | 1154 | if self.WITH_DEPENDS and not self.ALL: |
62ddec8b | 1155 | dlist = ifaceobj.lowerifaces |
fe0a57d3 | 1156 | if not dlist: continue |
53b00224 | 1157 | self.print_ifaceobjs_raw(dlist) |
739f665b | 1158 | |
2cd06f78 | 1159 | def _get_ifaceobjs_pretty(self, ifacenames, ifaceobjs, running=False): |
1160 | """ returns iface obj list """ | |
53b00224 | 1161 | |
a6f80f0e | 1162 | for i in ifacenames: |
31a5f4c3 | 1163 | for ifaceobj in self.get_ifaceobjs(i): |
2cd06f78 | 1164 | if ((not running and self.is_ifaceobj_noconfig(ifaceobj)) or |
1165 | (running and not ifaceobj.is_config_present())): | |
75730152 | 1166 | continue |
2cd06f78 | 1167 | ifaceobjs.append(ifaceobj) |
339026c8 | 1168 | if self.WITH_DEPENDS and not self.ALL: |
62ddec8b | 1169 | dlist = ifaceobj.lowerifaces |
fe0a57d3 | 1170 | if not dlist: continue |
2cd06f78 | 1171 | self._get_ifaceobjs_pretty(dlist, ifaceobjs, running) |
739f665b | 1172 | |
2cd06f78 | 1173 | def print_ifaceobjs_pretty(self, ifacenames, format='native'): |
1174 | """ pretty prints iface in format given by keyword arg format """ | |
eab25b7c | 1175 | |
2cd06f78 | 1176 | ifaceobjs = [] |
1177 | self._get_ifaceobjs_pretty(ifacenames, ifaceobjs) | |
1178 | if not ifaceobjs: return | |
1179 | if format == 'json': | |
3dcc1d0e | 1180 | print json.dumps(ifaceobjs, cls=ifaceJsonEncoder, |
1181 | indent=4, separators=(',', ': ')) | |
2cd06f78 | 1182 | else: |
2da58137 RP |
1183 | expand = int(self.config.get('ifquery_ifacename_expand_range', '0')) |
1184 | for i in ifaceobjs: | |
1185 | if not expand and (i.flags & iface.IFACERANGE_ENTRY): | |
1186 | # print only the first one | |
1187 | if i.flags & iface.IFACERANGE_START: | |
1188 | i.dump_pretty(use_realname=True) | |
1189 | else: | |
1190 | i.dump_pretty() | |
53b00224 | 1191 | |
2cd06f78 | 1192 | def _get_ifaceobjscurr_pretty(self, ifacenames, ifaceobjs): |
eab25b7c | 1193 | ret = 0 |
a6f80f0e | 1194 | for i in ifacenames: |
923290bd | 1195 | ifaceobjscurr = self.get_ifaceobjcurr(i) |
1196 | if not ifaceobjscurr: continue | |
1197 | for ifaceobj in ifaceobjscurr: | |
1198 | if (ifaceobj.status == ifaceStatus.NOTFOUND or | |
1199 | ifaceobj.status == ifaceStatus.ERROR): | |
1200 | ret = 1 | |
1201 | if self.is_ifaceobj_noconfig(ifaceobj): | |
1202 | continue | |
1203 | ifaceobjs.append(ifaceobj) | |
1204 | if self.WITH_DEPENDS and not self.ALL: | |
1205 | dlist = ifaceobj.lowerifaces | |
1206 | if not dlist: continue | |
1207 | dret = self._get_ifaceobjscurr_pretty(dlist, ifaceobjs) | |
1208 | if dret: ret = 1 | |
2cd06f78 | 1209 | return ret |
1210 | ||
1211 | def print_ifaceobjscurr_pretty(self, ifacenames, format='native'): | |
1212 | """ pretty prints current running state of interfaces with status. | |
1213 | ||
1214 | returns 1 if any of the interface has an error, | |
1215 | else returns 0 | |
1216 | """ | |
1217 | ||
1218 | ifaceobjs = [] | |
1219 | ret = self._get_ifaceobjscurr_pretty(ifacenames, ifaceobjs) | |
1220 | if not ifaceobjs: return | |
2cd06f78 | 1221 | if format == 'json': |
1222 | print json.dumps(ifaceobjs, cls=ifaceJsonEncoder, indent=2, | |
1223 | separators=(',', ': ')) | |
1224 | else: | |
86fc62e2 | 1225 | map(lambda i: i.dump_pretty(with_status=True, |
fac4138b RP |
1226 | successstr=self.config.get('ifquery_check_success_str', |
1227 | _success_sym), | |
1228 | errorstr=self.config.get('ifquery_check_error_str', _error_sym), | |
1229 | unknownstr=self.config.get('ifquery_check_unknown_str', '')), | |
1230 | ifaceobjs) | |
eab25b7c | 1231 | return ret |
a6f80f0e | 1232 | |
d08d5f54 | 1233 | def print_ifaceobjsrunning_pretty(self, ifacenames, format='native'): |
53b00224 | 1234 | """ pretty prints iface running state """ |
1235 | ||
2cd06f78 | 1236 | ifaceobjs = [] |
1237 | self._get_ifaceobjs_pretty(ifacenames, ifaceobjs, running=True) | |
1238 | if not ifaceobjs: return | |
1239 | if format == 'json': | |
1240 | print json.dumps(ifaceobjs, cls=ifaceJsonEncoder, indent=2, | |
1241 | separators=(',', ': ')) | |
1242 | else: | |
1243 | map(lambda i: i.dump_pretty(), ifaceobjs) | |
53b00224 | 1244 | |
1245 | def _dump(self): | |
1246 | print 'ifupdown main object dump' | |
1247 | print self.pp.pprint(self.modules) | |
1248 | print self.pp.pprint(self.ifaceobjdict) | |
1249 | ||
1250 | def _dump_ifaceobjs(self, ifacenames): | |
1251 | for i in ifacenames: | |
1252 | ifaceobjs = self.get_ifaceobjs(i) | |
1253 | for i in ifaceobjs: | |
1254 | i.dump(self.logger) | |
1255 | print '\n' |