-
Notifications
You must be signed in to change notification settings - Fork 16
/
ulgcisco.py
953 lines (751 loc) · 34.2 KB
/
ulgcisco.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
#!/usr/bin/env python
#
# ULG - Universal Looking Glass
# (C) 2012 CZ.NIC, z.s.p.o.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Imports
import os
import pexpect
import re
import sys
import string
import hashlib
import defaults
import ulgmodel
import ulggraph
# module globals
STRING_EXPECT_SSH_NEWKEY='Are you sure you want to continue connecting'
STRING_EXPECT_PASSWORD='(P|p)assword:'
STRING_EXPECT_SHELL_PROMPT_REGEXP = '\n[a-zA-Z0-9\._-]+(>|#)'
BGP_IPV6_SUM_TABLE_SPLITLINE_REGEXP='^\s*[0-9a-fA-F:]+\s*$'
IPV46_ADDR_REGEXP = '^[0-9a-fA-F:\.]+$'
BGP_IPV6_TABLE_HEADER_REGEXP='^\s*(Neighbor)\s+(V)\s+(AS)\s+(MsgRcvd)\s+(MsgSent)\s+(TblVer)\s+(InQ)\s+(OutQ)\s+(Up/Down)\s+(State/PfxRcd)\s*$'
BGP_IPV46_TABLE_LINE_REGEXP='^\s*([0-9a-fA-F:\.]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([a-zA-Z0-9:]+)\s+([a-zA-Z0-9\(\)]+|[a-zA-Z0-9]+\s\(Admin\))\s*$'
#BGP_IPV6_TABLE_LINE_REGEXP='^\s*([0-9a-fA-F:]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([a-zA-Z0-9:]+)\s+([a-zA-Z0-9\(\)]+|[a-zA-Z0-9]+\s\(Admin\))\s*$'
BGP_IPV4_TABLE_HEADER_REGEXP='^\s*(Neighbor)\s+(V)\s+(AS)\s+(MsgRcvd)\s+(MsgSent)\s+(TblVer)\s+(InQ)\s+(OutQ)\s+(Up/Down)\s+(State/PfxRcd)\s*$'
#BGP_IPV4_TABLE_LINE_REGEXP='^\s*([0-9\.]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([0-9]+)\s+([a-zA-Z0-9:]+)\s+([a-zA-Z0-9\(\)]+|[a-zA-Z0-9]+\s\(Admin\))\s*$'
BGP_PREFIX_TABLE_HEADER='^(\s)\s+(Network)\s+(Next Hop)\s+(Metric)\s+(LocPrf)\s+(Weight)\s+(Path)\s*$'
RESCAN_BGP_IPv4_COMMAND='show bgp ipv4 unicast summary'
RESCAN_BGP_IPv6_COMMAND='show bgp ipv6 unicast summary'
MAC_ADDRESS_REGEXP = '^[0-9a-fA-F]{4}\.[0-9a-fA-F]{4}\.[0-9a-fA-F]{4}$'
BGP_RED_STATES = ['Idle', 'Active', '(NoNeg)']
BGP_YELLOW_STATES = ['Idle (Admin)',]
REGEX_SH_BGP_UNI_ASLINE = '^(\s*)([0-9\s]+|Local)(|,.*)\s*$'
regex_sh_bgp_uni_asline = re.compile(REGEX_SH_BGP_UNI_ASLINE)
REGEX_SH_BGP_UNI_AGGR = '\s*\(aggregated by ([0-9]+) [0-9a-fA-F:\.]+\).*'
regex_sh_bgp_uni_aggr = re.compile(REGEX_SH_BGP_UNI_AGGR)
REGEX_SH_BGP_UNI_RECUSE = '\s*\(received & used\).*'
regex_sh_bgp_uni_recuse = re.compile(REGEX_SH_BGP_UNI_RECUSE)
REGEX_SH_BGP_UNI_RECONLY = '\s*\(received-only\).*'
regex_sh_bgp_uni_reconly = re.compile(REGEX_SH_BGP_UNI_RECONLY)
REGEX_SH_BGP_UNI_TABLE_START = '\s*(Advertised\s+to\s+update-groups|Not\s+advertised\s+to\s+any\s+peer).*'
regex_sh_bgp_uni_table_start = re.compile(REGEX_SH_BGP_UNI_TABLE_START)
REGEX_SH_BGP_UNI_PEERLINE = '\s*([0-9a-fA-F:\.]+)\s.*from\s.*'
regex_sh_bgp_uni_peerline = re.compile(REGEX_SH_BGP_UNI_PEERLINE)
REGEX_SH_BGP_UNI_ORIGLINE_BEST = '\s*Origin\s.*\sbest.*'
regex_sh_bgp_uni_origline_best = re.compile(REGEX_SH_BGP_UNI_ORIGLINE_BEST)
COMMAND_NAME_GRAPH4 = 'Graph - show bgp ipv4 unicast <IP subnet>'
COMMAND_NAME_GRAPH6 = 'Graph - show bgp ipv6 unicast <IP subnet>'
STRING_COMMAND_LOGOUT = 'logout'
def cisco_parse_sh_bgp_uni(lines,prependas):
def split_ases(ases):
if ases == 'Local':
return []
else:
return str.split(ases)
def get_info(info):
res = {'recuse':False, 'reconly':False, 'aggr':None}
for g in info.split(','):
# if(regex_sh_bgp_uni_recuse.match(g)):
# res['recuse'] = True
if(regex_sh_bgp_uni_reconly.match(g)):
res['reconly'] = True
m = regex_sh_bgp_uni_aggr.match(g)
if(m):
res['aggr'] = m.group(1)
return res
paths = []
table_prestarted = False
table_started = False
for l in str.splitlines(lines):
if not table_started:
if table_prestarted:
# if prestarted and a line not containing only numbers of
# update groups, start immediately
if not re.match('^[0-9\s]+$',l):
table_started = True
# if not prestarted and match occures, wait for next line
if(regex_sh_bgp_uni_table_start.match(l)):
table_prestarted = True
if table_started:
m = regex_sh_bgp_uni_asline.match(l)
if(m):
ases = [ulgmodel.annotateAS("AS"+str(asn)) for asn in [prependas] + split_ases(m.group(2))]
infotext = m.group(3)
if(infotext):
paths.append((ases,get_info(infotext)))
else:
paths.append((ases,{'recuse':False, 'reconly':False, 'aggr':None}))
continue
m = regex_sh_bgp_uni_peerline.match(l)
if(m):
paths[-1][1]['peer'] = m.group(1)
continue
m = regex_sh_bgp_uni_origline_best.match(l)
if(m):
paths[-1][1]['recuse'] = True
return paths
def reduce_bgp_paths(paths):
def has_valid(paths,onepath):
for p in paths:
if((onepath[0] == p[0]) and (not p[1]['reconly'])):
return True
return False
def has_used(paths,onepath):
for p in paths:
if((onepath[0] == p[0]) and (p[1]['recuse'])):
return True
return False
def assign_value(path):
if(path[1]['recuse']):
return 1
elif(path[1]['reconly']):
return 100
else:
return 10
newpaths = []
for p in paths:
if((p[1]['reconly']) and has_valid(paths,p)):
pass
elif(not (p[1]['recuse']) and has_used(paths,p)):
pass
else:
newpaths.append(p)
return sorted(newpaths,key=assign_value)
def matchCiscoBGPLines(header,lines):
# Match cisco lines formatted to be aligned to columns. Like:
# Network Next Hop Metric LocPrf Weight Path
# * 79.170.248.0/21 91.210.16.6 300 0 20723 i
# *>i91.199.207.0/24 217.31.48.123 0 1024 0 44672 i
# 0 1 2 3 4 5 6
#
# Network Next Hop Metric LocPrf Weight Path
# *>i2001:67C:278::/48
# 2001:1AB0:B0F4:FFFF::2
# 0 1024 0 51278 i
# *> 2001:1AB0::/32 :: 0 32768 i
# 0 1 2 3 4 5 6
#
# First find boundaries, second section text (if it overflow next boundary
# line wrap is expected) and then remove white spaces and return sections.
#
# ?1 hat happens when last element is line-wrapped? It looks like it does
# not happen in my settings.
def divideGroups(line,max_index_start=sys.maxint,table_line=False,first_group_length=3):
# divide groups starting before max_index_start
result = []
# when parsing table_line (not the header and not the continuation line)
# cut off first N charactes and use them as the first group (flags) when there is
# some non-blank characters in the first two groups (therefore the line is the leading)
if(table_line):
if(re.match('[^\s]+',line[0:(first_group_length+2)])):
result.append([0,first_group_length])
line = ' '*first_group_length + line[first_group_length:]
else:
# parsing header, add virtual Status group to the header
line = 'S'+line[1:]
last_group = False
for r in re.compile('[^\s]+').finditer(line):
if(not last_group):
result.append([r.start(),r.end()])
if(r.start() >= max_index_start):
last_group = True
# shortcut for empty lines / no results
if(len(result)==0):
return None
# add tail to last groups
result[-1][1] = len(line)
# in header force the first group to spann till the end of the next group
if(not table_line):
result[0][1] = result[1][0]-1
return result
def matchGroup(header_groups_indexes,line_group_indexes,last_element):
ulgmodel.debug('matchGroup header_group_indexes='+str(header_groups_indexes)+' line_group_indexes='+str(line_group_indexes))
if(len(header_groups_indexes) == 1):
return 0
# beginning of the second group is right of the beginning of the tested
if((len(header_groups_indexes) > 1) and
(header_groups_indexes[1][0] > line_group_indexes[0])):
return 0
# beginning of the last (and the only possible) group is left
# the beginning of the tested
if(header_groups_indexes[-1][0] <= line_group_indexes[0]):
return (len(header_groups_indexes)-1)
# linear algorithm !!!
# rewrite to tree(?)
for hgipos,hgi in enumerate(header_groups_indexes):
if((hgipos >= 1) and
(hgipos < (len(header_groups_indexes)-1)) and
(header_groups_indexes[hgipos-1][1] <= line_group_indexes[0]) and
(header_groups_indexes[hgipos+1][0] >= line_group_indexes[1])):
return hgipos
if((last_element) and
(hgipos >= 1) and
(hgi[0] <= line_group_indexes[0]) and
(len(header_groups_indexes)-1 > hgipos) and
(header_groups_indexes[hgipos+1][0] > line_group_indexes[0])):
return hgipos
return None
def normalize(instr):
return instr.strip()
hgidxs = divideGroups(header)
result = [[]]
for l in lines:
# divide groups (leave the last group in one part)
# define boundary of the first group by the first letter of the second group beginning
lgps = divideGroups(l,hgidxs[-1][0],True,hgidxs[1][0]-1)
if(lgps==None):
continue
for lgpidx,lgp in enumerate(lgps):
gidx = matchGroup(hgidxs,lgp,(lgpidx == (len(lgps)-1)))
if(gidx == None):
raise Exception("No group matched for line indexes. line="+l+" header_group_indexes="+
str(hgidxs)+" line_group_index="+str(lgp))
if(gidx < len(result[-1])):
result.append([])
while(gidx > len(result[-1])):
result[-1].append('')
result[-1].append(normalize(l[lgp[0]:lgp[1]]))
ulgmodel.debug('bgpmatchlines:'+str(result))
return result
def normalizeBGPIPv6SumSplitLines(lines):
"""This function concatenates lines with longer IPv6 addresses that
router splits on the header boundary."""
result = []
slr = re.compile(BGP_IPV6_SUM_TABLE_SPLITLINE_REGEXP)
b = None
for l in lines:
if(b):
result.append(b + l)
b = None
elif(slr.match(l)):
b = l
else:
result.append(l)
return result
# classes
class CiscoCommandBgpIPv46Sum(ulgmodel.TextCommand):
""" Abstract class, baseline for IPv4 and IPv6 versions. """
RED_STATES = BGP_RED_STATES
YELLOW_STATES = BGP_YELLOW_STATES
def __init__(self,name=None,peer_address_command=None,peer_received_command=None):
self.command=self.COMMAND_TEXT
self.param_specs=[]
self.peer_address_command = peer_address_command
self.peer_received_command = peer_received_command
if(name==None):
if(self.param_specs):
self.name=self.command % tuple([('<'+str(c.getName())+'>') for c in self.param_specs])
else:
self.name=self.command
else:
self.name = name
def _getPeerURL(self,decorator_helper,router,peer_address):
if decorator_helper and self.peer_address_command:
return decorator_helper.getRuncommandURL({'routerid':str(decorator_helper.getRouterID(router)),
'commandid':str(decorator_helper.getCommandID(router,self.peer_address_command)),
'param0':peer_address})
else:
return None
def _getPeerReceivedURL(self,decorator_helper,router,peer_address):
if decorator_helper and self.peer_received_command:
return decorator_helper.getRuncommandURL({'routerid':str(decorator_helper.getRouterID(router)),
'commandid':str(decorator_helper.getCommandID(router,self.peer_received_command)),
'param0':peer_address})
else:
return None
def _getPeerTableCell(self,decorator_helper,router,peer):
url = self._getPeerURL(decorator_helper,router,peer)
if url:
return decorator_helper.ahref(url,peer)
else:
return peer
def _getReceivedTableCell(self,decorator_helper,router,peer,received):
if re.compile('[0-9]+').match(received):
url = self._getPeerReceivedURL(decorator_helper,router,peer)
if url:
return decorator_helper.ahref(url,received)
else:
return received
else:
return received
def _decorateTableLine(self,line,decorator_helper,router):
lrm = re.compile(self.TABLE_LINE_REGEXP).match(line)
if(lrm):
# color selection
if(lrm.group(10) in self.YELLOW_STATES):
color = ulgmodel.TableDecorator.YELLOW
elif(lrm.group(10) in self.RED_STATES):
color = ulgmodel.TableDecorator.RED
else:
color = ulgmodel.TableDecorator.GREEN
# generate table content
return [
(self._getPeerTableCell(decorator_helper,router,lrm.group(1)),color),
(lrm.group(2),color),
(decorator_helper.decorateASN(lrm.group(3),prefix=''),color),
(lrm.group(4),color),
(lrm.group(5),color),
(lrm.group(6),color),
(lrm.group(7),color),
(lrm.group(8),color),
(lrm.group(9),color),
(self._getReceivedTableCell(decorator_helper,router,lrm.group(1),lrm.group(10)),color),
]
else:
raise Exception("Can not parse line: "+line)
def decorateResult(self,session,decorator_helper=None):
if(not session):
raise Exception('Can not decorate result without valid session.')
if(session.getResult() == None):
return (decorator_helper.pre(defaults.STRING_EMPTY), 1)
if((not session.getRouter()) or (not decorator_helper)):
return "<pre>\n%s\n</pre>" % session.getResult()
lines=[]
res=''
for l in normalizeBGPIPv6SumSplitLines(str.splitlines(session.getResult())):
lines.append(l)
before=''
after=''
table=[]
table_header=[]
tb = False
header_regexp = re.compile(self.TABLE_HEADER_REGEXP)
line_regexp = re.compile(self.TABLE_LINE_REGEXP)
for l in lines:
if(tb):
# inside table body
table.append(self._decorateTableLine(l,decorator_helper,session.getRouter()))
else:
# should we switch to table body?
thrm = header_regexp.match(l)
if(thrm):
tb = True
table_header = [g for g in thrm.groups()]
else:
# not yet in the table body, append before-table section
before = before + l + '\n'
result_len = len(table)
table = table[session.getRange():session.getRange()+defaults.range_step]
return (ulgmodel.TableDecorator(table,table_header,before=decorator_helper.pre(before)).decorate(),result_len)
class CiscoCommandBgpIPv4Sum(CiscoCommandBgpIPv46Sum):
COMMAND_TEXT='show bgp ipv4 unicast summary'
TABLE_LINE_REGEXP=BGP_IPV46_TABLE_LINE_REGEXP
TABLE_HEADER_REGEXP=BGP_IPV4_TABLE_HEADER_REGEXP
def __init__(self,name=None,peer_address_command=None,peer_received_command=None):
return CiscoCommandBgpIPv46Sum.__init__(self,name,peer_address_command,peer_received_command)
class CiscoCommandBgpIPv6Sum(CiscoCommandBgpIPv46Sum):
COMMAND_TEXT='show bgp ipv6 unicast summary'
TABLE_LINE_REGEXP=BGP_IPV46_TABLE_LINE_REGEXP
TABLE_HEADER_REGEXP=BGP_IPV6_TABLE_HEADER_REGEXP
def __init__(self,name=None,peer_address_command=None,peer_received_command=None):
return CiscoCommandBgpIPv46Sum.__init__(self,name,peer_address_command,peer_received_command)
class CiscoCommandShowBgpIPv4Neigh(ulgmodel.TextCommand):
COMMAND_TEXT='show bgp ipv4 unicast neighbor %s'
def __init__(self,router,name=None):
ulgmodel.TextCommand.__init__(self,self.COMMAND_TEXT,param_specs=[router.getBGPIPv4Select()],name=name)
class CiscoCommandShowBgpIPv6Neigh(ulgmodel.TextCommand):
COMMAND_TEXT='show bgp ipv6 unicast neighbor %s'
def __init__(self,router,name=None):
ulgmodel.TextCommand.__init__(self,self.COMMAND_TEXT,param_specs=[router.getBGPIPv6Select()],name=name)
class CiscoCommandShowBgpIPv46Select(ulgmodel.TextCommand):
TABLE_HEADER_REGEXP=BGP_PREFIX_TABLE_HEADER
LASTLINE_REGEXP='^\s*Total number of prefixes [0-9]+\s*$'
def __init__(self,peer_select_param,name=None):
ulgmodel.TextCommand.__init__(self,self.COMMAND_TEXT,param_specs=[peer_select_param],name=name)
def _decorateASPath(self,path,decorator_helper):
result = ''
for asnm in re.compile('[^\s]+').finditer(path):
asn = asnm.group(0)
if(asn.isdigit()):
result = result + ' ' + decorator_helper.decorateASN(asn,prefix='')
else:
if(re.match('^\s*\{[0-9,]+\}\s*', asn)):
result = result + '{'
isnext = False
for sasnm in re.compile('([0-9]+)(,|\})').finditer(asn):
sasn = sasnm.group(0)
if(sasn.isdigit()):
if(isnext):
result = result + ',' + decorator_helper.decorateASN(sasn,prefix='')
else:
isnext = True
result = result + decorator_helper.decorateASN(sasn,prefix='')
result = result + '}'
else:
result = result + ' ' +asn
return result
def _genTable(self,table_lines,decorator_helper,router):
mls = matchCiscoBGPLines(self.table_header,table_lines)
result = []
for ml in mls:
# generate table content
result.append([
(ml[0],),
(decorator_helper.decoratePrefix(ml[1]),),
(ml[2],),
(ml[3],),
(ml[4],),
(ml[5],),
(self._decorateASPath(ml[6],decorator_helper),),
])
return result
def decorateResult(self,session,decorator_helper=None):
def restrict(lines,start,count):
res=[]
s=start
r = re.compile("^\s{6,}.*")
while(r.match(lines[s]) and s > 0):
s=s-1
e=s+count
if(e >= len(lines)):
e=len(lines)-1
while(r.match(lines[e]) and e < (len(lines)-1)):
e=e+1
return lines[s:e]
if(not session):
raise Exception("Can not decorate result without valid session passed.")
if(session.getResult() == None):
return (decorator_helper.pre(defaults.STRING_EMPTY), 1)
if((not session.getRouter()) or (not decorator_helper)):
return "<pre>\n%s\n</pre>" % session.getResult()
lines = str.splitlines(session.getResult())
before=''
after=None
table=[]
table_header_descr=[]
tb = False
header_regexp = re.compile(self.TABLE_HEADER_REGEXP)
lastline_regexp = re.compile(self.LASTLINE_REGEXP)
table_lines = []
for l in lines:
if(tb):
# inside table body
if(lastline_regexp.match(l)):
after = l
else:
table_lines.append(l)
else:
# should we switch to table body?
thrm = header_regexp.match(l)
if(thrm):
# set header accoring to the local router alignment
# include (unnamed) states (=S)
self.table_header = 'S'+(l[1:].replace('Next Hop','Next_Hop',1))
tb = True
table_header_descr = [g for g in thrm.groups()]
else:
# not yet in the table body, append before-table section
before = before + l + '\n'
result_len = len(table_lines)
if(table_lines):
table = self._genTable(restrict(table_lines,session.getRange(),defaults.range_step),
decorator_helper,session.getRouter())
if(after):
after=decorator_helper.pre(after)
return (ulgmodel.TableDecorator(table,table_header_descr,before=decorator_helper.pre(before),
after=after).decorate(),result_len)
class CiscoCommandShowBgpIPv4NeighAdv(CiscoCommandShowBgpIPv46Select):
COMMAND_TEXT='show bgp ipv4 unicast neighbor %s advertised'
def __init__(self,router,name=None):
ulgmodel.TextCommand.__init__(self,self.COMMAND_TEXT,[router.getBGPIPv4Select()],name=name)
class CiscoCommandShowBgpIPv6NeighAdv(CiscoCommandShowBgpIPv46Select):
COMMAND_TEXT='show bgp ipv6 unicast neighbor %s advertised'
def __init__(self,router,name=None):
ulgmodel.TextCommand.__init__(self,self.COMMAND_TEXT,[router.getBGPIPv6Select()],name=name)
class CiscoCommandShowBgpIPv4NeighRecv(CiscoCommandShowBgpIPv46Select):
COMMAND_TEXT='show bgp ipv4 unicast neighbor %s received-routes'
def __init__(self,router,name=None):
ulgmodel.TextCommand.__init__(self,self.COMMAND_TEXT,[router.getBGPIPv4Select()],name=name)
class CiscoCommandShowBgpIPv6NeighRecv(CiscoCommandShowBgpIPv46Select):
COMMAND_TEXT='show bgp ipv6 unicast neighbor %s received-routes'
def __init__(self,router,name=None):
ulgmodel.TextCommand.__init__(self,self.COMMAND_TEXT,[router.getBGPIPv6Select()],name=name)
class CiscoCommandGraphShowBgpIPv46Uni(ulgmodel.TextCommand):
TABLE_HEADER_REGEXP=BGP_PREFIX_TABLE_HEADER
def __init__(self,name=None,param=None):
ulgmodel.TextCommand.__init__(self,self.COMMAND_TEXT,
param_specs=[param],
name=name)
def decorateResult(self,session,decorator_helper=None):
if(session.isFinished()):
if(session.getData() != None) and (session.getData() != []):
return (decorator_helper.img(decorator_helper.getSpecialContentURL(session.getSessionId()),defaults.STRING_BGP_GRAPH),1)
else:
return (decorator_helper.pre(defaults.STRING_BGP_GRAPH_ERROR), 1)
else:
return ('',0)
def finishHook(self,session):
session.setData(cisco_parse_sh_bgp_uni(session.getResult(),str(session.getRouter().getASN())))
def getSpecialContent(self,session,**params):
paths = session.getData()
print "Content-type: image/png\n"
ulggraph.bgp_graph_gen(reduce_bgp_paths(paths),start=session.getRouter().getName(),
end=session.getParameters()[0])
def showRange(self):
return False
class CiscoCommandGraphShowBgpIPv4Uni(CiscoCommandGraphShowBgpIPv46Uni):
COMMAND_TEXT='show bgp ipv4 unicast %s'
def __init__(self,router,name=None):
CiscoCommandGraphShowBgpIPv46Uni.__init__(self,name,param=ulgmodel.IPv4SubnetParameter())
class CiscoCommandGraphShowBgpIPv6Uni(CiscoCommandGraphShowBgpIPv46Uni):
COMMAND_TEXT='show bgp ipv6 unicast %s'
def __init__(self,router,name=None):
CiscoCommandGraphShowBgpIPv46Uni.__init__(self,name,param=ulgmodel.IPv6SubnetParameter())
class CiscoShowBgpIPv46Uni(ulgmodel.TextCommand):
def __init__(self,param):
ulgmodel.TextCommand.__init__(self,self.COMMAND_TEXT,[param]),
def decorateResult(self,session,decorator_helper=None):
def decorateLine(l):
m = regex_sh_bgp_uni_asline.match(l)
if(m):
r = m.group(1)
ases = str.split(m.group(2))
for asn in ases:
r = r + ' ' + decorator_helper.decorateASN(asn,prefix='')
r = r + m.group(3)
return decorator_helper.annotateIPs(r)
else:
return decorator_helper.annotateIPs(l)
s = str.splitlines(session.getResult())
lbeg = 0
lend = len(s)
if(session.getRange() != None and self.showRange()):
lbeg = session.getRange()
lend = session.getRange()+defaults.range_step+1
r=''
table_started=False
table_prestarted = False
for sl in s[lbeg:lend]:
if(table_started):
r += decorateLine(sl) + "\n"
else:
r += sl + "\n"
if(table_prestarted):
table_started = True
if(regex_sh_bgp_uni_table_start.match(sl)):
table_prestarted = True
return ("<pre>\n%s\n</pre>" % r, len(s))
class CiscoShowBgpIPv4Uni(CiscoShowBgpIPv46Uni):
COMMAND_TEXT = 'show bgp ipv4 unicast %s'
def __init__(self,name=None):
CiscoShowBgpIPv46Uni.__init__(self,param=ulgmodel.IPv4SubnetParameter())
class CiscoShowBgpIPv6Uni(CiscoShowBgpIPv46Uni):
COMMAND_TEXT = 'show bgp ipv6 unicast %s'
def __init__(self,name=None):
CiscoShowBgpIPv46Uni.__init__(self,param=ulgmodel.IPv6SubnetParameter())
class CiscoRouter(ulgmodel.RemoteRouter):
PS_KEY_BGPV4 = '-bgpipv4'
PS_KEY_BGPV6 = '-bgpipv6'
def _getDefaultCommands(self):
return self._getBGPCommands()
def _getAllCommands(self):
_show_bgp_ipv4_uni_neigh = CiscoCommandShowBgpIPv4Neigh(self)
_show_bgp_ipv4_uni_neigh_advertised = CiscoCommandShowBgpIPv4NeighAdv(self)
_show_bgp_ipv4_uni_neigh_received_routes = CiscoCommandShowBgpIPv4NeighRecv(self)
_show_bgp_ipv6_uni_neigh = CiscoCommandShowBgpIPv6Neigh(self)
_show_bgp_ipv6_uni_neigh_advertised = CiscoCommandShowBgpIPv6NeighAdv(self)
_show_bgp_ipv6_uni_neigh_received_routes = CiscoCommandShowBgpIPv6NeighRecv(self)
_graph_show_bgp_ipv4_uni = CiscoCommandGraphShowBgpIPv4Uni(self,COMMAND_NAME_GRAPH4)
_graph_show_bgp_ipv6_uni = CiscoCommandGraphShowBgpIPv6Uni(self,COMMAND_NAME_GRAPH6)
return [ulgmodel.TextCommand('show version'),
ulgmodel.TextCommand('show interfaces status'),
CiscoCommandBgpIPv4Sum('show bgp ipv4 unicast summary',
peer_address_command=_show_bgp_ipv4_uni_neigh,
peer_received_command=_show_bgp_ipv4_uni_neigh_received_routes),
CiscoCommandBgpIPv6Sum('show bgp ipv6 unicast summary',
peer_address_command=_show_bgp_ipv6_uni_neigh,
peer_received_command=_show_bgp_ipv6_uni_neigh_received_routes),
_show_bgp_ipv4_uni_neigh,
_show_bgp_ipv6_uni_neigh,
_show_bgp_ipv4_uni_neigh_received_routes,
_show_bgp_ipv6_uni_neigh_received_routes,
_show_bgp_ipv4_uni_neigh_advertised,
_show_bgp_ipv6_uni_neigh_advertised,
CiscoShowBgpIPv4Uni(),
CiscoShowBgpIPv6Uni(),
ulgmodel.TextCommand('show ip route %s',[ulgmodel.IPv4AddressParameter()]),
ulgmodel.TextCommand('show ipv6 route %s',[ulgmodel.IPv6AddressParameter()]),
ulgmodel.TextCommand('show ip arp %s',[ulgmodel.TextParameter('.*',name=defaults.STRING_NONEORINTORIPADDRESS)]),
ulgmodel.TextCommand('show ipv6 neighbors %s',[ulgmodel.TextParameter('.*',name=defaults.STRING_NONEORINTORIPADDRESS)]),
ulgmodel.TextCommand('show mac-address-table address %s',[ulgmodel.TextParameter(MAC_ADDRESS_REGEXP,name=defaults.STRING_MACADDRESS)]),
ulgmodel.TextCommand('show mac-address-table interface %s',[ulgmodel.TextParameter('.*',name=defaults.STRING_INTERFACE)]),
_graph_show_bgp_ipv4_uni,
_graph_show_bgp_ipv6_uni,
ulgmodel.TextCommand('ping %s',[ulgmodel.IPv64AddressParameter()]),
ulgmodel.TextCommand('traceroute %s',[ulgmodel.IPv64AddressParameter()]),
]
def _getBGPCommands(self):
_show_bgp_ipv4_uni_neigh = CiscoCommandShowBgpIPv4Neigh(self)
_show_bgp_ipv4_uni_neigh_advertised = CiscoCommandShowBgpIPv4NeighAdv(self)
_show_bgp_ipv4_uni_neigh_received_routes = CiscoCommandShowBgpIPv4NeighRecv(self)
_show_bgp_ipv6_uni_neigh = CiscoCommandShowBgpIPv6Neigh(self)
_show_bgp_ipv6_uni_neigh_advertised = CiscoCommandShowBgpIPv6NeighAdv(self)
_show_bgp_ipv6_uni_neigh_received_routes = CiscoCommandShowBgpIPv6NeighRecv(self)
_graph_show_bgp_ipv4_uni = CiscoCommandGraphShowBgpIPv4Uni(self,COMMAND_NAME_GRAPH4)
_graph_show_bgp_ipv6_uni = CiscoCommandGraphShowBgpIPv6Uni(self,COMMAND_NAME_GRAPH6)
return [
CiscoCommandBgpIPv4Sum('show bgp ipv4 unicast summary',
peer_address_command=_show_bgp_ipv4_uni_neigh,
peer_received_command=_show_bgp_ipv4_uni_neigh_received_routes),
CiscoCommandBgpIPv6Sum('show bgp ipv6 unicast summary',
peer_address_command=_show_bgp_ipv6_uni_neigh,
peer_received_command=_show_bgp_ipv6_uni_neigh_received_routes),
_show_bgp_ipv4_uni_neigh,
_show_bgp_ipv6_uni_neigh,
_show_bgp_ipv4_uni_neigh_received_routes,
_show_bgp_ipv6_uni_neigh_received_routes,
_show_bgp_ipv4_uni_neigh_advertised,
_show_bgp_ipv6_uni_neigh_advertised,
CiscoShowBgpIPv4Uni(),
CiscoShowBgpIPv6Uni(),
_graph_show_bgp_ipv4_uni,
_graph_show_bgp_ipv6_uni,
ulgmodel.TextCommand('ping %s',[ulgmodel.IPv64AddressParameter()]),
ulgmodel.TextCommand('traceroute %s',[ulgmodel.IPv64AddressParameter()]),
]
def __init__(self, host, user, password, port=22, commands=None, enable_bgp=True, asn='My ASN', name=None, acl=None):
ulgmodel.RemoteRouter.__init__(self,acl=acl)
self.setHost(host)
self.setPort(port)
self.setUser(user)
self.setPassword(password)
self.bgp_ipv4_peers = []
self.bgp_ipv6_peers = []
if(name):
self.setName(name)
else:
self.setName(host)
self.setASN(asn)
if enable_bgp:
if(defaults.rescan_on_display):
self.rescanHook()
else:
self.loadBGPPeers()
rid = hashlib.md5(self.getName()).hexdigest()
self.bgp4select = ulgmodel.CommonSelectionParameter(rid+"bgp4",[tuple((p,p,)) for p in self.getBGPIPv4Peers()],
name=defaults.STRING_IPADDRESS)
self.bgp6select = ulgmodel.CommonSelectionParameter(rid+"bgp6",[tuple((p,p,)) for p in self.getBGPIPv6Peers()],
name=defaults.STRING_IPADDRESS)
if(commands):
self.setCommands(commands)
else:
self.setCommands(self._getDefaultCommands())
def getForkNeeded(self):
return True
def rescanBGPPeers(self,command,regexp):
table = self.runRawSyncCommand(command)
peers = []
rlr = re.compile(regexp)
lines = normalizeBGPIPv6SumSplitLines(str.splitlines(table))
for tl in lines:
rlrm = rlr.match(tl)
if(rlrm):
peers.append(rlrm.group(1))
return peers
def rescanBGPIPv4Peers(self):
self.bgp_ipv4_peers = self.rescanBGPPeers(RESCAN_BGP_IPv4_COMMAND,BGP_IPV46_TABLE_LINE_REGEXP)
def rescanBGPIPv6Peers(self):
self.bgp_ipv6_peers = self.rescanBGPPeers(RESCAN_BGP_IPv6_COMMAND,BGP_IPV46_TABLE_LINE_REGEXP)
def rescanHook(self):
self.rescanBGPIPv4Peers()
self.rescanBGPIPv6Peers()
self.saveBGPPeers()
def getBGPIPv4Peers(self):
return self.bgp_ipv4_peers
def getBGPIPv6Peers(self):
return self.bgp_ipv6_peers
def getBGPIPv4Select(self):
return self.bgp4select
def getBGPIPv6Select(self):
return self.bgp6select
def saveBGPPeers(self):
key4 = self.getHost() + self.PS_KEY_BGPV4
key6 = self.getHost() + self.PS_KEY_BGPV6
ps = ulgmodel.loadPersistentStorage()
ps.set(key4,self.getBGPIPv4Peers())
ps.set(key6,self.getBGPIPv6Peers())
ps.save()
def loadBGPPeers(self):
key4 = self.getHost() + self.PS_KEY_BGPV4
key6 = self.getHost() + self.PS_KEY_BGPV6
ps = ulgmodel.loadPersistentStorage()
self.bgp_ipv4_peers = ps.get(key4)
self.bgp_ipv6_peers = ps.get(key6)
if(not self.getBGPIPv4Peers()) or (not self.getBGPIPv6Peers()):
self.rescanHook()
def runRawCommand(self,command,outfile):
skiplines=1
# connect
c=defaults.bin_ssh+' -p'+str(self.getPort())+' '+str(self.getUser())+'@'+self.getHost()
s=pexpect.spawn(c,timeout=defaults.timeout)
## Debug logging
# s.logfile = open('/tmp/ulgcisco.log', 'w')
y=0
p=0
# handle ssh
while True:
i=s.expect([STRING_EXPECT_SSH_NEWKEY,STRING_EXPECT_PASSWORD,
STRING_EXPECT_SHELL_PROMPT_REGEXP,pexpect.EOF,pexpect.TIMEOUT])
if(i==0):
if(y>1):
raise Exception("pexpect session failed: Can not save SSH key.")
s.sendline('yes')
y+=1
elif(i==1):
if(p>1):
raise Exception("pexpect session failed: Password not accepted.")
s.sendline(self.password)
p+=1
elif(i==2): # prompt
break
elif(i==3):
raise Exception("pexpect session failed: Remote server disconnected.")
elif(i==4):
raise Exception("pexpect session failed: Connection timeout.")
else:
raise Exception("pexpect session failed: Unknown error. last output: "+s.before)
s.sendline('terminal length 0')
s.expect(['\n',pexpect.EOF,pexpect.TIMEOUT])
s.sendline('terminal width 0')
s.expect(['\n',pexpect.EOF,pexpect.TIMEOUT])
l=0
s.sendline(command)
while True:
i=s.expect([STRING_EXPECT_SHELL_PROMPT_REGEXP,'\n',pexpect.EOF,pexpect.TIMEOUT])
if(i==0): # prompt
s.sendline(STRING_COMMAND_LOGOUT)
s.expect(['\n',pexpect.EOF,pexpect.TIMEOUT])
break
elif(i==1): # anything to capture
if(l>=skiplines):
outfile.write(s.before + "\n")
l+=1
elif(i==2):
raise Exception("pexpect session failed: Remote server disconnected.")
elif(i==3):
raise Exception("pexpect session failed: Connection timeout.")
else:
raise Exception("pexpect session failed: Unknown error. last output: "+s.before)