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8465de90 RP |
1 | #!/usr/bin/python |
2 | # | |
3 | # Copyright 2014 Cumulus Networks, Inc. All rights reserved. | |
4 | # Author: Roopa Prabhu, roopa@cumulusnetworks.com | |
5 | # | |
6 | ||
7 | import os | |
8 | import atexit | |
9 | from ifupdown.iface import * | |
54616d3f | 10 | import ifupdown.policymanager as policymanager |
8465de90 | 11 | import ifupdownaddons |
768b4ec5 | 12 | import ifupdown.rtnetlink_api as rtnetlink_api |
8465de90 RP |
13 | from ifupdownaddons.modulebase import moduleBase |
14 | from ifupdownaddons.bondutil import bondutil | |
15 | from ifupdownaddons.iproute2 import iproute2 | |
16 | ||
17 | class vrf(moduleBase): | |
18 | """ ifupdown2 addon module to configure vrfs """ | |
19 | _modinfo = { 'mhelp' : 'vrf configuration module', | |
20 | 'attrs' : { | |
21 | 'vrf-table': | |
22 | {'help' : 'vrf device table id. key to ' + | |
23 | 'creating a vrf device', | |
24 | 'example': ['vrf-table-id 1']}, | |
54616d3f N |
25 | 'vrf-default-route': |
26 | {'help' : 'vrf device default route ' + | |
27 | 'to avoid communication outside the vrf device', | |
28 | 'example': ['vrf-default-route yes/no']}, | |
8465de90 RP |
29 | 'vrf': |
30 | {'help' : 'vrf the interface is part of.', | |
31 | 'example': ['vrf blue']}}} | |
32 | ||
a1c23686 | 33 | iproute2_vrf_filename = '/etc/iproute2/rt_tables.d/ifupdown2_vrf_map.conf' |
8465de90 RP |
34 | iproute2_vrf_filehdr = '# This file is autogenerated by ifupdown2.\n' + \ |
35 | '# It contains the vrf name to table mapping.\n' + \ | |
6f2890fc RP |
36 | '# Reserved table range %s %s\n' |
37 | VRF_TABLE_START = 1001 | |
38 | VRF_TABLE_END = 5000 | |
8465de90 RP |
39 | |
40 | def __init__(self, *args, **kargs): | |
41 | ifupdownaddons.modulebase.moduleBase.__init__(self, *args, **kargs) | |
42 | self.ipcmd = None | |
43 | self.bondcmd = None | |
44 | try: | |
45 | ip_rules = self.exec_command('/sbin/ip rule show').splitlines() | |
46 | self.ip_rule_cache = [' '.join(r.split()) for r in ip_rules] | |
47 | except Exception, e: | |
48 | self.ip_rule_cache = [] | |
49 | self.logger.warn('%s' %str(e)) | |
50 | ||
51 | try: | |
52 | ip_rules = self.exec_command('/sbin/ip -6 rule show').splitlines() | |
53 | self.ip6_rule_cache = [' '.join(r.split()) for r in ip_rules] | |
54 | except Exception, e: | |
55 | self.ip6_rule_cache = [] | |
56 | self.logger.warn('%s' %str(e)) | |
57 | ||
58 | #self.logger.debug("vrf: ip rule cache") | |
59 | #self.logger.info(self.ip_rule_cache) | |
60 | ||
61 | #self.logger.info("vrf: ip -6 rule cache") | |
62 | #self.logger.info(self.ip6_rule_cache) | |
63 | ||
64 | # XXX: check for vrf reserved overlap in /etc/iproute2/rt_tables | |
65 | self.iproute2_vrf_map = {} | |
66 | # read or create /etc/iproute2/rt_tables.d/ifupdown2.vrf_map | |
67 | if os.path.exists(self.iproute2_vrf_filename): | |
68 | self.vrf_map_fd = open(self.iproute2_vrf_filename, 'a+') | |
69 | lines = self.vrf_map_fd.readlines() | |
70 | for l in lines: | |
71 | l = l.strip() | |
72 | if l[0] == '#': | |
73 | continue | |
74 | try: | |
75 | (table, vrf_name) = l.strip().split() | |
76 | self.iproute2_vrf_map[table] = vrf_name | |
77 | except Exception, e: | |
78 | self.logger.info('vrf: iproute2_vrf_map: unable to parse %s' | |
79 | %l) | |
80 | pass | |
81 | #self.logger.info("vrf: dumping iproute2_vrf_map") | |
82 | #self.logger.info(self.iproute2_vrf_map) | |
83 | ||
84 | # purge vrf table entries that are not around | |
85 | iproute2_vrf_map_pruned = {} | |
86 | for t, v in self.iproute2_vrf_map.iteritems(): | |
87 | if os.path.exists('/sys/class/net/%s' %v): | |
88 | iproute2_vrf_map_pruned[t] = v | |
89 | else: | |
90 | try: | |
91 | # cleanup rules | |
92 | self._del_vrf_rules(v, t) | |
93 | except Exception: | |
94 | pass | |
95 | self.iproute2_vrf_map = iproute2_vrf_map_pruned | |
96 | ||
6f2890fc RP |
97 | self.vrf_table_id_start = policymanager.policymanager_api.get_module_globals(module_name=self.__class__.__name__, attr='vrf-table-id-start') |
98 | if not self.vrf_table_id_start: | |
99 | self.vrf_table_id_start = self.VRF_TABLE_START | |
100 | self.vrf_table_id_end = policymanager.policymanager_api.get_module_globals(module_name=self.__class__.__name__, attr='vrf-table-id-end') | |
101 | if not self.vrf_table_id_end: | |
102 | self.vrf_table_id_end = self.VRF_TABLE_END | |
103 | self.vrf_max_count = policymanager.policymanager_api.get_module_globals(module_name=self.__class__.__name__, attr='vf-max-count') | |
104 | ||
105 | last_used_vrf_table = None | |
106 | for t in range(self.vrf_table_id_start, | |
107 | self.vrf_table_id_end): | |
8465de90 RP |
108 | if not self.iproute2_vrf_map.get(t): |
109 | break | |
6f2890fc | 110 | last_used_vrf_table = t |
8465de90 RP |
111 | self.last_used_vrf_table = last_used_vrf_table |
112 | self.iproute2_write_vrf_map = False | |
113 | atexit.register(self.iproute2_vrf_map_write) | |
3fcb15fe | 114 | self.vrf_fix_local_table = True |
6f2890fc | 115 | self.vrf_count = 0 |
83841a51 | 116 | self.vrf_cgroup_create = policymanager.policymanager_api.get_module_globals(module_name=self.__class__.__name__, attr='vrf-cgroup-create') |
6f2890fc RP |
117 | if not self.vrf_cgroup_create: |
118 | self.vrf_cgroup_create = False | |
119 | elif self.vrf_cgroup_create == 'yes': | |
120 | self.vrf_cgroup_create = True | |
121 | else: | |
122 | self.vrf_cgroup_create = False | |
8465de90 RP |
123 | |
124 | def iproute2_vrf_map_write(self): | |
125 | if not self.iproute2_write_vrf_map: | |
126 | return | |
127 | self.logger.info('vrf: writing table map to %s' | |
128 | %self.iproute2_vrf_filename) | |
129 | with open(self.iproute2_vrf_filename, 'w') as f: | |
6f2890fc RP |
130 | f.write(self.iproute2_vrf_filehdr %(self.vrf_table_id_start, |
131 | self.vrf_table_id_end)) | |
8465de90 RP |
132 | for t, v in self.iproute2_vrf_map.iteritems(): |
133 | f.write('%s %s\n' %(t, v)) | |
134 | ||
135 | def _is_vrf(self, ifaceobj): | |
136 | if ifaceobj.get_attr_value_first('vrf-table'): | |
137 | return True | |
138 | return False | |
139 | ||
768b4ec5 | 140 | def get_upper_ifacenames(self, ifaceobj, ifacenames_all=None): |
8465de90 RP |
141 | """ Returns list of interfaces dependent on ifaceobj """ |
142 | ||
768b4ec5 RP |
143 | vrf_table = ifaceobj.get_attr_value_first('vrf-table') |
144 | if vrf_table: | |
145 | ifaceobj.link_type = ifaceLinkType.LINK_MASTER | |
146 | ifaceobj.link_kind |= ifaceLinkKind.VRF | |
8465de90 RP |
147 | vrf_iface_name = ifaceobj.get_attr_value_first('vrf') |
148 | if not vrf_iface_name: | |
149 | return None | |
768b4ec5 | 150 | ifaceobj.link_type = ifaceLinkType.LINK_SLAVE |
8465de90 RP |
151 | return [vrf_iface_name] |
152 | ||
768b4ec5 | 153 | def get_upper_ifacenames_running(self, ifaceobj): |
8465de90 RP |
154 | return None |
155 | ||
156 | def _get_iproute2_vrf_table(self, vrf_dev_name): | |
157 | for t, v in self.iproute2_vrf_map.iteritems(): | |
158 | if v == vrf_dev_name: | |
159 | return t | |
160 | return None | |
161 | ||
162 | def _get_avail_vrf_table_id(self): | |
6f2890fc RP |
163 | if self.last_used_vrf_table == None: |
164 | table_id_start = self.vrf_table_id_start | |
165 | else: | |
166 | table_id_start = self.last_used_vrf_table + 1 | |
167 | for t in range(table_id_start, | |
168 | self.vrf_table_id_end): | |
8465de90 RP |
169 | if not self.iproute2_vrf_map.get(t): |
170 | self.last_used_vrf_table = t | |
6f2890fc | 171 | return str(t) |
8465de90 RP |
172 | return None |
173 | ||
174 | def _iproute2_vrf_table_entry_add(self, vrf_dev_name, table_id): | |
175 | self.iproute2_vrf_map[table_id] = vrf_dev_name | |
176 | self.iproute2_write_vrf_map = True | |
177 | ||
178 | def _iproute2_vrf_table_entry_del(self, table_id): | |
179 | try: | |
180 | del self.iproute2_vrf_map[table_id] | |
181 | self.iproute2_write_vrf_map = True | |
182 | except Exception, e: | |
183 | self.logger.info('vrf: iproute2 vrf map del failed for %d (%s)' | |
184 | %(table_id, str(e))) | |
185 | pass | |
186 | ||
768b4ec5 | 187 | def _up_vrf_slave(self, ifacename, vrfname): |
8465de90 | 188 | try: |
768b4ec5 RP |
189 | if self.ipcmd.link_exists(vrfname): |
190 | self.ipcmd.link_set(ifacename, 'master', vrfname) | |
8465de90 | 191 | except Exception, e: |
768b4ec5 | 192 | self.logger.warn('%s: %s' %(ifacename, str(e))) |
8465de90 RP |
193 | |
194 | def _del_vrf_rules(self, vrf_dev_name, vrf_table): | |
195 | pref = 200 | |
196 | ip_rule_out_format = '%s: from all %s %s lookup %s' | |
197 | ip_rule_cmd = 'ip %s rule del pref %s %s %s table %s' | |
198 | ||
4ce47ce4 | 199 | rule = ip_rule_out_format %(pref, 'oif', vrf_dev_name, vrf_dev_name) |
8465de90 RP |
200 | if rule in self.ip_rule_cache: |
201 | rule_cmd = ip_rule_cmd %('', pref, 'oif', vrf_dev_name, vrf_table) | |
202 | self.exec_command(rule_cmd) | |
203 | ||
4ce47ce4 | 204 | rule = ip_rule_out_format %(pref, 'iif', vrf_dev_name, vrf_dev_name) |
8465de90 RP |
205 | if rule in self.ip_rule_cache: |
206 | rule_cmd = ip_rule_cmd %('', pref, 'iif', vrf_dev_name, vrf_table) | |
207 | self.exec_command(rule_cmd) | |
208 | ||
4ce47ce4 | 209 | rule = ip_rule_out_format %(pref, 'oif', vrf_dev_name, vrf_dev_name) |
8465de90 RP |
210 | if rule in self.ip_rule_cache: |
211 | rule_cmd = ip_rule_cmd %('-6', pref, 'oif', vrf_dev_name, | |
212 | vrf_table) | |
213 | self.exec_command(rule_cmd) | |
214 | ||
4ce47ce4 | 215 | rule = ip_rule_out_format %(pref, 'iif', vrf_dev_name, vrf_dev_name) |
8465de90 RP |
216 | if rule in self.ip_rule_cache: |
217 | rule_cmd = ip_rule_cmd %('-6', pref, 'iif', vrf_dev_name, | |
218 | vrf_table) | |
219 | self.exec_command(rule_cmd) | |
220 | ||
221 | def _add_vrf_rules(self, vrf_dev_name, vrf_table): | |
222 | pref = 200 | |
223 | ip_rule_out_format = '%s: from all %s %s lookup %s' | |
224 | ip_rule_cmd = 'ip %s rule add pref %s %s %s table %s' | |
659097a0 N |
225 | if self.vrf_fix_local_table: |
226 | self.vrf_fix_local_table = False | |
227 | rule = '0: from all lookup local' | |
228 | if rule in self.ip_rule_cache: | |
229 | try: | |
3fcb15fe N |
230 | self.exec_command('ip rule del pref 0') |
231 | self.exec_command('ip rule add pref 32765 table local') | |
659097a0 N |
232 | except Exception, e: |
233 | self.logger.info('%s' %str(e)) | |
234 | pass | |
8465de90 | 235 | |
3fcb15fe N |
236 | #Example ip rule |
237 | #200: from all oif blue lookup blue | |
238 | #200: from all iif blue lookup blue | |
239 | ||
240 | rule = ip_rule_out_format %(pref, 'oif', vrf_dev_name, vrf_dev_name) | |
8465de90 RP |
241 | if rule not in self.ip_rule_cache: |
242 | rule_cmd = ip_rule_cmd %('', pref, 'oif', vrf_dev_name, vrf_table) | |
243 | self.exec_command(rule_cmd) | |
244 | ||
3fcb15fe | 245 | rule = ip_rule_out_format %(pref, 'iif', vrf_dev_name, vrf_dev_name) |
8465de90 RP |
246 | if rule not in self.ip_rule_cache: |
247 | rule_cmd = ip_rule_cmd %('', pref, 'iif', vrf_dev_name, vrf_table) | |
248 | self.exec_command(rule_cmd) | |
249 | ||
3fcb15fe | 250 | rule = ip_rule_out_format %(pref, 'oif', vrf_dev_name, vrf_dev_name) |
8465de90 | 251 | if rule not in self.ip_rule_cache: |
3fcb15fe | 252 | rule_cmd = ip_rule_cmd %('-6', pref, 'oif', vrf_dev_name, vrf_table) |
8465de90 RP |
253 | self.exec_command(rule_cmd) |
254 | ||
3fcb15fe | 255 | rule = ip_rule_out_format %(pref, 'iif', vrf_dev_name, vrf_dev_name) |
8465de90 RP |
256 | if rule not in self.ip_rule_cache: |
257 | rule_cmd = ip_rule_cmd %('-6', pref, 'iif', vrf_dev_name, | |
258 | vrf_table) | |
259 | self.exec_command(rule_cmd) | |
260 | ||
768b4ec5 RP |
261 | def _add_vrf_slaves(self, ifaceobj): |
262 | running_slaves = self.ipcmd.link_get_lowers(ifaceobj.name) | |
263 | config_slaves = ifaceobj.lowerifaces | |
b94e4d24 | 264 | if not config_slaves and not running_slaves: |
867e11a2 | 265 | return |
768b4ec5 RP |
266 | add_slaves = set(config_slaves).difference(set(running_slaves)) |
267 | del_slaves = set(running_slaves).difference(set(config_slaves)) | |
268 | if add_slaves: | |
269 | for s in add_slaves: | |
270 | try: | |
271 | self._up_vrf_slave(s, ifaceobj.name) | |
272 | except Exception, e: | |
273 | self.logger.info('%s: %s' %(ifaceobj.name, str(e))) | |
274 | ||
275 | if del_slaves: | |
276 | for s in del_slaves: | |
277 | try: | |
278 | self._down_vrf_slave(s, ifaceobj.name) | |
279 | except Exception, e: | |
280 | self.logger.info('%s: %s' %(ifaceobj.name, str(e))) | |
281 | ||
282 | if ifaceobj.link_type == ifaceLinkType.LINK_MASTER: | |
283 | for s in config_slaves: | |
284 | try: | |
285 | rtnetlink_api.rtnl_api.link_set(s, "up") | |
286 | except Exception, e: | |
287 | self.logger.debug('%s: %s: link set up (%s)' | |
288 | %(ifaceobj.name, s, str(e))) | |
289 | pass | |
8465de90 | 290 | |
2df6a60f | 291 | def _create_cgroup(self, ifaceobj): |
6f2890fc RP |
292 | if not self.vrf_cgroup_create: |
293 | return | |
2df6a60f | 294 | try: |
d1e1c43b RP |
295 | if not os.path.exists('/sys/fs/cgroup/l3mdev/%s' %ifaceobj.name): |
296 | self.exec_command('cgcreate -g l3mdev:%s' %ifaceobj.name) | |
2df6a60f RP |
297 | self.exec_command('cgset -r l3mdev.master-device=%s %s' |
298 | %(ifaceobj.name, ifaceobj.name)) | |
299 | except Exception, e: | |
300 | self.log_warn('%s: cgroup create failed (%s)\n' | |
301 | %(ifaceobj.name, str(e)), ifaceobj) | |
302 | ||
8465de90 | 303 | def _up_vrf_dev(self, ifaceobj, vrf_table): |
8465de90 | 304 | |
2df6a60f | 305 | if not self.ipcmd.link_exists(ifaceobj.name): |
6f2890fc RP |
306 | if vrf_table == 'auto': |
307 | vrf_table = self._get_avail_vrf_table_id() | |
308 | if not vrf_table: | |
309 | self.log_error('%s: unable to get an auto table id' | |
310 | %ifaceobj.name) | |
311 | self.logger.info('%s: table id auto: selected table id %s\n' | |
312 | %(ifaceobj.name, vrf_table)) | |
313 | # XXX: If we decide to not allow vrf id usages out of | |
314 | # the reserved ifupdown range, then uncomment this code. | |
315 | #else: | |
316 | # if (int(vrf_table) < self.vrf_table_id_start or | |
317 | # int(vrf_table) > self.vrf_table_id_end): | |
318 | # self.log_error('%s: vrf table id %s out of reserved range [%d,%d]' | |
319 | # %(ifaceobj.name, vrf_table, | |
320 | # self.vrf_table_id_start, | |
321 | # self.vrf_table_id_end)) | |
2df6a60f | 322 | try: |
8465de90 RP |
323 | self.ipcmd.link_create(ifaceobj.name, 'vrf', |
324 | {'table' : '%s' %vrf_table}) | |
2df6a60f RP |
325 | except Exception, e: |
326 | self.log_error('%s: create failed (%s)\n' | |
327 | %(ifaceobj.name, str(e))) | |
328 | else: | |
6f2890fc RP |
329 | vrf_table = self._get_iproute2_vrf_table(ifaceobj.name) |
330 | if not vrf_table: | |
331 | self.log_error('%s: unable to get vrf table id' | |
332 | %ifaceobj.name) | |
333 | ||
2df6a60f RP |
334 | # if the device exists, check if table id is same |
335 | vrfdev_attrs = self.ipcmd.link_get_linkinfo_attrs(ifaceobj.name) | |
336 | if vrfdev_attrs: | |
337 | running_table = vrfdev_attrs.get('table', None) | |
338 | if vrf_table != running_table: | |
6f2890fc RP |
339 | self.log_error('%s: cannot change vrf table id,running table id %s is different from config id %s' %(ifaceobj.name, |
340 | running_table, vrf_table)) | |
2df6a60f RP |
341 | |
342 | try: | |
8465de90 RP |
343 | self._iproute2_vrf_table_entry_add(ifaceobj.name, vrf_table) |
344 | self._add_vrf_rules(ifaceobj.name, vrf_table) | |
768b4ec5 | 345 | self._add_vrf_slaves(ifaceobj) |
2df6a60f | 346 | self._create_cgroup(ifaceobj) |
8465de90 | 347 | except Exception, e: |
2df6a60f | 348 | self.log_error('%s: %s' %(ifaceobj.name, str(e))) |
54616d3f N |
349 | |
350 | def _up_vrf_default_route(self, ifaceobj, vrf_table): | |
351 | vrf_default_route = ifaceobj.get_attr_value_first('vrf-default-route') | |
352 | if not vrf_default_route: | |
353 | vrf_default_route = policymanager.policymanager_api.get_attr_default( | |
354 | module_name=self.__class__.__name__, attr='vrf-default-route') | |
355 | if not vrf_default_route: | |
356 | return | |
357 | if str(vrf_default_route).lower() == "yes": | |
358 | try: | |
359 | self.exec_command('ip route add table %s unreachable default' %vrf_table) | |
360 | except OSError, e: | |
361 | if e.errno != 17: | |
362 | raise | |
363 | pass | |
364 | ||
0ba9abeb N |
365 | try: |
366 | self.exec_command('ip -6 route add table %s unreachable default' %vrf_table) | |
367 | except OSError, e: | |
368 | if e.errno != 17: | |
369 | raise | |
370 | pass | |
371 | ||
8465de90 RP |
372 | def _up(self, ifaceobj): |
373 | try: | |
374 | vrf_table = ifaceobj.get_attr_value_first('vrf-table') | |
375 | if vrf_table: | |
6f2890fc RP |
376 | if self.vrf_count == self.vrf_max_count: |
377 | self.log_error('%s: max vrf count %d hit...not ' | |
378 | 'creating vrf' %(ifaceobj.name, | |
379 | self.vrf_count)) | |
8465de90 | 380 | self._up_vrf_dev(ifaceobj, vrf_table) |
54616d3f | 381 | self._up_vrf_default_route(ifaceobj, vrf_table) |
8465de90 RP |
382 | else: |
383 | vrf = ifaceobj.get_attr_value_first('vrf') | |
384 | if vrf: | |
768b4ec5 | 385 | self._up_vrf_slave(ifaceobj.name, vrf) |
8465de90 RP |
386 | except Exception, e: |
387 | self.log_error(str(e)) | |
388 | ||
2df6a60f RP |
389 | def _delete_cgroup(self, ifaceobj): |
390 | try: | |
d1e1c43b RP |
391 | if os.path.exists('/sys/fs/cgroup/l3mdev/%s' %ifaceobj.name): |
392 | self.exec_command('cgdelete -g l3mdev:%s' %ifaceobj.name) | |
2df6a60f | 393 | except Exception, e: |
d1e1c43b | 394 | self.log_warn('%s: cgroup delete failed (%s)\n' |
2df6a60f RP |
395 | %(ifaceobj.name, str(e)), ifaceobj) |
396 | ||
8465de90 RP |
397 | def _down_vrf_dev(self, ifaceobj, vrf_table): |
398 | if vrf_table == 'auto': | |
399 | vrf_table = self._get_iproute2_vrf_table(ifaceobj.name) | |
400 | try: | |
401 | self.ipcmd.link_delete(ifaceobj.name) | |
768b4ec5 RP |
402 | except Exception, e: |
403 | self.logger.info('%s: %s' %(ifaceobj.name, str(e))) | |
404 | pass | |
405 | ||
406 | try: | |
8465de90 | 407 | self._iproute2_vrf_table_entry_del(vrf_table) |
2df6a60f | 408 | self._delete_cgroup(ifaceobj) |
768b4ec5 RP |
409 | except Exception, e: |
410 | self.logger.info('%s: %s' %(ifaceobj.name, str(e))) | |
411 | pass | |
412 | ||
413 | try: | |
8465de90 RP |
414 | self._del_vrf_rules(ifaceobj.name, vrf_table) |
415 | except Exception, e: | |
768b4ec5 RP |
416 | self.logger.info('%s: %s' %(ifaceobj.name, str(e))) |
417 | pass | |
8465de90 | 418 | |
768b4ec5 | 419 | def _down_vrf_slave(self, ifacename, vrf): |
8465de90 | 420 | try: |
768b4ec5 | 421 | self.ipcmd.link_set(ifacename, 'nomaster') |
8465de90 | 422 | except Exception, e: |
768b4ec5 | 423 | self.logger.warn('%s: %s' %(ifacename, str(e))) |
8465de90 RP |
424 | |
425 | def _down(self, ifaceobj): | |
426 | try: | |
427 | vrf_table = ifaceobj.get_attr_value_first('vrf-table') | |
428 | if vrf_table: | |
429 | self._down_vrf_dev(ifaceobj, vrf_table) | |
430 | else: | |
431 | vrf = ifaceobj.get_attr_value_first('vrf') | |
432 | if vrf: | |
768b4ec5 | 433 | self._down_vrf_slave(ifaceobj.name, vrf) |
8465de90 RP |
434 | except Exception, e: |
435 | self.log_warn(str(e)) | |
436 | ||
437 | def _query_check_vrf_slave(self, ifaceobj, ifaceobjcurr, vrf): | |
438 | try: | |
54616d3f | 439 | master = self.ipcmd.link_get_master(ifaceobj.name) |
8465de90 RP |
440 | if not master or master != vrf: |
441 | ifaceobjcurr.update_config_with_status('vrf', master, 1) | |
442 | else: | |
443 | ifaceobjcurr.update_config_with_status('vrf', master, 0) | |
444 | except Exception, e: | |
445 | self.log_warn(str(e)) | |
446 | ||
447 | def _query_check_vrf_dev(self, ifaceobj, ifaceobjcurr, vrf_table): | |
448 | try: | |
449 | if not self.ipcmd.link_exists(ifaceobj.name): | |
450 | self.logger.info('%s: vrf: does not exist' %(ifaceobj.name)) | |
451 | return | |
452 | if vrf_table == 'auto': | |
453 | config_table = self._get_iproute2_vrf_table(ifaceobj.name) | |
454 | else: | |
455 | config_table = vrf_table | |
456 | vrfdev_attrs = self.ipcmd.link_get_linkinfo_attrs(ifaceobj.name) | |
457 | if not vrfdev_attrs: | |
458 | ifaceobjcurr.update_config_with_status('vrf-table', 'None', 1) | |
459 | return | |
460 | running_table = vrfdev_attrs.get('table') | |
461 | if not running_table: | |
462 | ifaceobjcurr.update_config_with_status('vrf-table', 'None', 1) | |
463 | return | |
464 | if config_table != running_table: | |
465 | ifaceobjcurr.update_config_with_status('vrf-table', | |
466 | running_table, 1) | |
467 | else: | |
468 | ifaceobjcurr.update_config_with_status('vrf-table', | |
469 | running_table, 0) | |
470 | except Exception, e: | |
471 | self.log_warn(str(e)) | |
472 | ||
473 | def _query_check(self, ifaceobj, ifaceobjcurr): | |
474 | try: | |
475 | vrf_table = ifaceobj.get_attr_value_first('vrf-table') | |
476 | if vrf_table: | |
477 | self._query_check_vrf_dev(ifaceobj, ifaceobjcurr, vrf_table) | |
478 | else: | |
479 | vrf = ifaceobj.get_attr_value_first('vrf') | |
480 | if vrf: | |
481 | self._query_check_vrf_slave(ifaceobj, ifaceobjcurr, vrf) | |
482 | except Exception, e: | |
483 | self.log_warn(str(e)) | |
484 | ||
485 | def _query_running(self, ifaceobjrunning): | |
486 | try: | |
487 | kind = self.ipcmd.link_get_kind(ifaceobjrunning.name) | |
488 | if kind == 'vrf': | |
54616d3f | 489 | vrfdev_attrs = self.ipcmd.link_get_linkinfo_attrs(ifaceobjrunning.name) |
8465de90 RP |
490 | if vrfdev_attrs: |
491 | running_table = vrfdev_attrs.get('table') | |
492 | if running_table: | |
493 | ifaceobjrunning.update_config('vrf-table', | |
494 | running_table) | |
495 | elif kind == 'vrf_slave': | |
54616d3f | 496 | vrf = self.ipcmd.link_get_master(ifaceobjrunning.name) |
8465de90 RP |
497 | if vrf: |
498 | ifaceobjrunning.update_config('vrf', vrf) | |
499 | except Exception, e: | |
500 | self.log_warn(str(e)) | |
501 | ||
502 | _run_ops = {'pre-up' : _up, | |
503 | 'post-down' : _down, | |
504 | 'query-running' : _query_running, | |
505 | 'query-checkcurr' : _query_check} | |
506 | ||
507 | def get_ops(self): | |
508 | """ returns list of ops supported by this module """ | |
509 | return self._run_ops.keys() | |
510 | ||
511 | def _init_command_handlers(self): | |
512 | flags = self.get_flags() | |
513 | if not self.ipcmd: | |
514 | self.ipcmd = iproute2(**flags) | |
515 | if not self.bondcmd: | |
516 | self.bondcmd = bondutil(**flags) | |
517 | ||
518 | def run(self, ifaceobj, operation, query_ifaceobj=None, **extra_args): | |
519 | """ run bond configuration on the interface object passed as argument | |
520 | ||
521 | Args: | |
522 | **ifaceobj** (object): iface object | |
523 | ||
524 | **operation** (str): any of 'pre-up', 'post-down', 'query-checkcurr', | |
525 | 'query-running' | |
526 | ||
527 | Kwargs: | |
528 | **query_ifaceobj** (object): query check ifaceobject. This is only | |
529 | valid when op is 'query-checkcurr'. It is an object same as | |
530 | ifaceobj, but contains running attribute values and its config | |
531 | status. The modules can use it to return queried running state | |
532 | of interfaces. status is success if the running state is same | |
533 | as user required state in ifaceobj. error otherwise. | |
534 | """ | |
535 | op_handler = self._run_ops.get(operation) | |
536 | if not op_handler: | |
537 | return | |
538 | self._init_command_handlers() | |
539 | if operation == 'query-checkcurr': | |
540 | op_handler(self, ifaceobj, query_ifaceobj) | |
541 | else: | |
542 | op_handler(self, ifaceobj) |