Class: OSPFv2::LSDB::LinkStateDatabase
- Inherits:
-
Object
- Object
- OSPFv2::LSDB::LinkStateDatabase
show all
- Includes:
- OSPFv2, Common, TO_S
- Defined in:
- lib/ls_db/link_state_database.rb,
lib/ls_db/link_state_database_build.rb,
lib/ls_db/link_state_database_links.rb
Constant Summary
collapse
- AreaId =
Class.new(OSPFv2::Id)
Constants included
from OSPFv2
ASBR_SUMMMARY_LSA, AllDRouters, AllSPFRouters, CheckAge, DefaultDestination, EXTERNAL_BASE_ADDRESS, EXTERNAL_LSA, IPPROTO_OSPF, InitialSequenceNumber, OSPFv2::LINK_BASE_ADDRESS, OSPFv2::LSA_HEADER_LEN, OSPFv2::LSInfinity, OSPFv2::LSRefreshTime, MaxAge, MaxAgeDiff, MaxSequenceNumber, MinLSArrival, MinLSInterval, N, NETWORK_BASE_ADDRESS, NETWORK_LSA, NSSA_LSA, Netmask, PACKET_HEADER_LEN, ROUTER_LINK_P2P, ROUTER_LINK_STUB, ROUTER_LINK_TRANSIT, ROUTER_LINK_VL, ROUTER_LSA, RouterId, SUMMARY_BASE_ADDRESS, SUMMARY_LSA, VERSION
Instance Attribute Summary collapse
Class Method Summary
collapse
Instance Method Summary
collapse
-
#<<(lsa) ⇒ Object
-
#[](*key) ⇒ Object
-
#add_adjacency(*arg) ⇒ Object
(also: #add_p2p_adjacency)
-
#add_link_to_stub_network(arg = {}) ⇒ Object
:router_id=> 1, :link_id=> ‘192.168.0.1’, :link_data => ‘255.255.255.255’ :router_id=> 1, :network=> ‘192.168.0.1/24’, :metric => 10.
-
#add_loopback(arg = {}) ⇒ Object
Router *13.11.13.11 13.11.13.11 0x80000032 16 0x22 0xf55e 48 bits 0x0, link count 1 id 99.99.1.1, data 255.255.255.255, Type Stub (3) Topology count: 0, Default metric: 0.
-
#add_router_id(router_id) ⇒ Object
-
#all ⇒ Object
(also: #lsas)
-
#all_not_acked ⇒ Object
-
#all_proxied ⇒ Object
-
#each ⇒ Object
-
#find_asbr_sum(advertising_router) ⇒ Object
-
#find_router_lsa(router_id) ⇒ Object
-
#has?(obj) ⇒ Boolean
-
#initialize(arg = {}) ⇒ LinkStateDatabase
constructor
A new instance of LinkStateDatabase.
-
#keys ⇒ Object
-
#link(link, action) ⇒ Object
-
#link_down(link) ⇒ Object
-
#link_maxage ⇒ Object
-
#link_refresh ⇒ Object
-
#link_up(link) ⇒ Object
-
#lookup(*args) ⇒ Object
-
#ls_ack(lsa) ⇒ Object
-
#ls_db=(arg) ⇒ Object
-
#ls_refresh?(ls) ⇒ Boolean
-
#ls_refresh_time ⇒ Object
-
#ls_refresh_time=(val) ⇒ Object
-
#new_link(*args) ⇒ Object
link, :dir => :local_only link_hash, :direction => :remote_only.
-
#proxied?(router_id) ⇒ Boolean
-
#recv_dd(dd, ls_req_list) ⇒ Object
-
#recv_link_state_update(link_state_update) ⇒ Object
-
#refresh ⇒ Object
-
#remove_adjacency(rid, neighbor_id, prefix) ⇒ Object
-
#reset ⇒ Object
-
#router_id(*args) ⇒ Object
-
#size ⇒ Object
-
#to_hash ⇒ Object
-
#to_s_default ⇒ Object
-
#to_s_junos(verbose = false) ⇒ Object
(also: #to_j)
Methods included from TO_S
#to_s
Methods included from Common
#ivar_to_klassname, #ivars, #set
Constructor Details
Returns a new instance of LinkStateDatabase.
95
96
97
98
99
100
101
102
|
# File 'lib/ls_db/link_state_database.rb', line 95
def initialize(arg={})
@ls_db = Hash.new
@area_id = AreaId.new
@advertised_routers= AdvertisedRouters.new
@ls_refresh_interval=180
@offset=0
set arg
end
|
Instance Attribute Details
#advertised_routers ⇒ Object
Returns the value of attribute advertised_routers.
92
93
94
|
# File 'lib/ls_db/link_state_database.rb', line 92
def advertised_routers
@advertised_routers
end
|
Returns the value of attribute area_id.
89
90
91
|
# File 'lib/ls_db/link_state_database.rb', line 89
def area_id
@area_id
end
|
#ls_refresh_interval ⇒ Object
Returns the value of attribute ls_refresh_interval.
93
94
95
|
# File 'lib/ls_db/link_state_database.rb', line 93
def ls_refresh_interval
@ls_refresh_interval
end
|
Returns the value of attribute offset.
93
94
95
|
# File 'lib/ls_db/link_state_database.rb', line 93
def offset
@offset
end
|
Class Method Details
.create(arg = {}) ⇒ Object
lsdb = LinkStateDatabase.create 10, 10, :prefix => ‘192.168.0.0/24’ lsdb = LinkStateDatabase.create 10, 10, :prefix_base => ‘192.168.0.0/24’, :router_id_base =>
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
# File 'lib/ls_db/link_state_database_links.rb', line 58
def self.create(arg={})
arg = {:area_id=> 0, :columns=>2, :rows=>2, :base_router_id=> 0, :base_prefix=>'172.21.0.0/30'}.merge(arg)
ls_db = new arg
rows=arg[:rows]
cols=arg[:columns]
@base_router_id = arg[:base_router_id]
if arg[:base_prefix]
Link.reset_ip_addr
Link.base_ip_addr arg[:base_prefix]
end
@base_prefix = arg[:base_prefix]
router_id = lambda { |c,r| (r<<16) + c + @base_router_id }
1.upto(rows) do |r|
1.upto(cols) do |c|
ls_db.new_link(:router_id=> router_id.call(c,r-1), :neighbor_id=> router_id.call(c,r)) if r > 1
ls_db.new_link(:router_id=> router_id.call(c-1,r), :neighbor_id=> router_id.call(c,r)) if c > 1
end
end
ls_db
end
|
.router_id(row, col, base_rid = ROUTER_ID_BASE) ⇒ Object
48
49
50
|
# File 'lib/ls_db/link_state_database_links.rb', line 48
def self.router_id(row, col, base_rid=ROUTER_ID_BASE)
(row << 16) + col + base_rid
end
|
Instance Method Details
146
147
148
149
150
|
# File 'lib/ls_db/link_state_database.rb', line 146
def <<(lsa)
lsa = OSPFv2::Lsa.factory(lsa) unless lsa.is_a?(Lsa)
@ls_db.store(lsa.key,lsa)
lsa
end
|
246
247
248
|
# File 'lib/ls_db/link_state_database.rb', line 246
def [](*key)
lookup(*key)
end
|
#add_adjacency(*arg) ⇒ Object
Also known as:
add_p2p_adjacency
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
|
# File 'lib/ls_db/link_state_database_build.rb', line 36
def add_adjacency(*arg)
if arg.size==1 and arg[0].is_a?(Hash)
arg = arg[0]
router_id = arg[:router_id]
neighbor_id = arg[:neighbor_router_id]
prefix = arg[:prefix]
metric = arg[:metric] ||= 1
link = arg[:link] if arg[:link] and arg[:link].is_a?(Link)
elsif arg.size>2
router_id, neighbor_id, prefix, metric = arg
metric ||=1
else
raise ArgumentError
end
raise ArgumentError, "missing prefix" unless prefix
raise ArgumentError, "missing neighbor router id" unless neighbor_id
_, addr, plen, network, netmask = IPAddr.to_arr(prefix)
router_id ||= addr
advertised_routers << router_id
rlsa = find_router_lsa router_id
if ! rlsa
rlsa = OSPFv2::Lsa.factory \
:advertising_router=> router_id,
:ls_id=> router_id,
:ls_type=>:router_lsa,
:options=> 0x22
advertised_routers << router_id
self << rlsa
else
rlsa.delete(1,neighbor_id)
rlsa.delete(3,network)
end
rlsa << { :link_id=>neighbor_id, :link_data=>addr, :router_link_type=>:point_to_point, :metric=>metric, }
rlsa << { :link_id=>network, :link_data=>netmask, :router_link_type=>:stub_network, :metric=>metric }
rlsa
end
|
#add_link_to_stub_network(arg = {}) ⇒ Object
:router_id=> 1, :link_id=> ‘192.168.0.1’, :link_data => ‘255.255.255.255’ :router_id=> 1, :network=> ‘192.168.0.1/24’, :metric => 10
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
|
# File 'lib/ls_db/link_state_database_build.rb', line 109
def add_link_to_stub_network(arg={})
router_id = arg[:router_id]
link_id = arg[:link_id]
link_data = arg[:link_data]
if arg[:network]
addr = IPAddr.new arg[:network]
link_id = addr.to_s
link_data = addr.netmask
end
raise ArgumentError, "missing neighbor router id" unless router_id
raise ArgumentError, "missing neighbor link_id" unless link_id
raise ArgumentError, "missing neighbor link_data" unless link_data
metric = arg[:metric] ||=0
rlsa = find_router_lsa(router_id)
link = {:router_link_type=>:stub_network, :metric=>metric, :link_id=>link_id, :link_data=>link_data}
if ! rlsa
rlsa = OSPFv2::Lsa.factory \
:advertising_router=> router_id,
:ls_id=> router_id,
:nwveb=>2,
:ls_type=>:router_lsa,
:options=> 0x22
advertised_routers << router_id
self << rlsa
end
rlsa = find_router_lsa(router_id)
rlsa.delete(3,link_id)
rlsa << link
rlsa
end
|
#add_loopback(arg = {}) ⇒ Object
Router *13.11.13.11 13.11.13.11 0x80000032 16 0x22 0xf55e 48
bits 0x0, link count 1
id 99.99.1.1, data 255.255.255.255, Type Stub (3)
Topology count: 0, Default metric: 0
173
174
175
|
# File 'lib/ls_db/link_state_database_build.rb', line 173
def add_loopback(arg={})
add_link_to_stub_network :router_id => arg[:router_id], :link_id=> arg[:address], :link_data=> '255.255.255.255', :metric=> arg[:metric]
end
|
#add_router_id(router_id) ⇒ Object
Router ID: 13.11.13.11
Router *13.11.13.11 13.11.13.11 0x80000022 458 0x22 0x58e9 36
bits 0x0, link count 1
id 192.168.1.200, data 192.168.1.200, Type Transit (2)
Topology count: 0, Default metric: 10
164
165
166
|
# File 'lib/ls_db/link_state_database_build.rb', line 164
def add_router_id(router_id)
add_link_to_stub_network :router_id => router_id, :link_id=> router_id, :link_data=> router_id
end
|
#all ⇒ Object
Also known as:
lsas
116
117
118
|
# File 'lib/ls_db/link_state_database.rb', line 116
def all
@ls_db.values
end
|
#all_not_acked ⇒ Object
254
255
256
|
# File 'lib/ls_db/link_state_database.rb', line 254
def all_not_acked
all.find_all { |l| ! l.ack? }
end
|
#all_proxied ⇒ Object
128
129
130
|
# File 'lib/ls_db/link_state_database.rb', line 128
def all_proxied
@ls_db.values.find_all { |lsa| advertised_routers.has? lsa.advertising_router }
end
|
132
133
134
135
136
|
# File 'lib/ls_db/link_state_database.rb', line 132
def each
@ls_db.values.each do |lsa|
yield lsa
end
end
|
#find_asbr_sum(advertising_router) ⇒ Object
181
182
183
|
# File 'lib/ls_db/link_state_database.rb', line 181
def find_asbr_sum(advertising_router)
lookup(4,advertising_router)
end
|
#find_router_lsa(router_id) ⇒ Object
178
179
180
|
# File 'lib/ls_db/link_state_database.rb', line 178
def find_router_lsa(router_id)
lookup(1,router_id)
end
|
#has?(obj) ⇒ Boolean
292
293
294
|
# File 'lib/ls_db/link_state_database.rb', line 292
def has?(obj)
lookup(obj)
end
|
142
143
144
|
# File 'lib/ls_db/link_state_database.rb', line 142
def keys
@ls_db.keys
end
|
#link(link, action) ⇒ Object
113
114
115
116
117
118
119
|
# File 'lib/ls_db/link_state_database_links.rb', line 113
def link(link, action)
raise ArgumentError, "invalid argument: #{link.class}" unless link.is_a?(Link)
case action
when :up ; link_up(link)
when :down ; link_down(link)
end
end
|
#link_down(link) ⇒ Object
133
134
135
136
137
138
|
# File 'lib/ls_db/link_state_database_links.rb', line 133
def link_down(link)
lsa = @ls_db[link.local_lsa]
lsa.delete(1, link.neighbor_id.to_ip)
lsa = @ls_db[link.remote_lsa]
lsa.delete(1, link.router_id.to_ip)
end
|
#link_maxage ⇒ Object
144
145
146
|
# File 'lib/ls_db/link_state_database_links.rb', line 144
def link_maxage
end
|
#link_refresh ⇒ Object
140
141
142
|
# File 'lib/ls_db/link_state_database_links.rb', line 140
def link_refresh
end
|
#link_up(link) ⇒ Object
121
122
123
124
125
126
127
128
129
130
131
|
# File 'lib/ls_db/link_state_database_links.rb', line 121
def link_up(link)
raise ArgumentError, "invalid argument: #{link.class}" unless link.is_a?(Link)
add_adjacency :router_id=> link.router_id.to_i,
:neighbor_router_id => link.neighbor_id.to_i,
:prefix=> link.local_prefix,
:metric => link.metric
add_adjacency :router_id=> link.neighbor_id.to_i,
:neighbor_router_id => link.router_id.to_i,
:prefix=> link.remote_prefix,
:metric => link.metric
end
|
#lookup(*args) ⇒ Object
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
|
# File 'lib/ls_db/link_state_database.rb', line 185
def lookup(*args)
if args.size==1
if args[0].is_a?(Array) and args[0].size==3
if args[0][0].is_a?(Symbol)
args[0][0] = LsType.to_i(args[0][0])
end
args[0][1] = id2i(args[0][1])
args[0][2] = id2i(args[0][2])
@ls_db[args[0]]
elsif args[0].is_a?(Lsa)
@ls_db[args[0].key]
else
raise ArgumentError, "Invalid argument, #{args.inspect}"
end
elsif args.size==3
lookup(args)
elsif args.size==2
lookup([args[0],args[1],args[1]])
else
raise ArgumentError, "*** Invalid argument, #{args.inspect}"
end
end
|
#ls_ack(lsa) ⇒ Object
152
153
154
155
156
157
158
159
160
161
162
163
|
# File 'lib/ls_db/link_state_database.rb', line 152
def ls_ack(lsa)
lsa = lookup(lsa)
if lsa
if lsa.maxaged?
@ls_db.delete(lsa.key)
else
@ls_db[lsa.key].ack
end
end
end
|
#ls_db=(arg) ⇒ Object
138
139
140
|
# File 'lib/ls_db/link_state_database.rb', line 138
def ls_db=(arg)
[arg].flatten.each { |l| self << l }
end
|
#ls_refresh?(ls) ⇒ Boolean
262
263
264
265
|
# File 'lib/ls_db/link_state_database.rb', line 262
def ls_refresh?(ls)
rt = ls_refresh_time
ls.instance_eval { refresh?(rt) }
end
|
#ls_refresh_time ⇒ Object
104
105
106
|
# File 'lib/ls_db/link_state_database.rb', line 104
def ls_refresh_time
@ls_refresh_time ||= LSRefreshTime
end
|
#ls_refresh_time=(val) ⇒ Object
108
109
110
|
# File 'lib/ls_db/link_state_database.rb', line 108
def ls_refresh_time=(val)
@ls_refresh_time=val
end
|
#new_link(*args) ⇒ Object
link, :dir => :local_only link_hash, :direction => :remote_only
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
|
# File 'lib/ls_db/link_state_database_links.rb', line 82
def new_link(*args)
local, remote = true, true
if args.size==1 and args[0].is_a?(Hash)
link = Link.new args[0]
elsif args[0].is_a?(Link)
link = args[0]
else
raise ArgumentError, "invalid argument: #{args.inspect}"
end
dir = args[0][:direction] ||= :both
local = false if dir and dir == :remote_only
remote = false if dir and dir == :local_only
if local
lsa = add_p2p_adjacency :router_id => link.router_id.to_i, :neighbor_router_id => link.neighbor_id.to_i, :prefix => link.local_prefix, :metric=>1
lsa.lsdb_link_id = link.id
link.local_lsa = lsa.key
end
if remote
lsa = add_p2p_adjacency :router_id => link.neighbor_id.to_i, :neighbor_router_id => link.router_id.to_i, :prefix => link.remote_prefix, :metric=>1
lsa.lsdb_link_id = link.id
link.remote_lsa = lsa.key
end
end
|
#proxied?(router_id) ⇒ Boolean
112
113
114
|
# File 'lib/ls_db/link_state_database.rb', line 112
def proxied?(router_id)
advertised_routers.has?(router_id)
end
|
#recv_dd(dd, ls_req_list) ⇒ Object
297
298
299
300
301
302
303
304
305
306
307
308
309
310
|
# File 'lib/ls_db/link_state_database.rb', line 297
def recv_dd(dd, ls_req_list)
raise ArgumentError, "lss nil" unless ls_req_list
dd.each { |dd_lsa|
if advertised_routers.has?(dd_lsa.advertising_router)
our_lsa = lookup(dd_lsa)
if our_lsa and (our_lsa <=> dd_lsa)
our_lsa.force_refresh(dd_lsa.sequence_number)
end
else
ls_req_list.store(dd_lsa.key,0)
end
}
nil
end
|
#recv_link_state_update(link_state_update) ⇒ Object
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
|
# File 'lib/ls_db/link_state_database.rb', line 267
def recv_link_state_update(link_state_update)
link_state_update.each do |lsa|
if advertised_routers.has?(lsa.advertising_router)
puts "RECEIVING FROM *OUR* #{lsa.advertising_router}"
if @ls_db.key? lsa.key
puts "AND WE HAVE KEY #{lsa.key.inspect} ALREADY ...."
@ls_db[lsa.key].force_refresh(lsa.sequence_number)
else
puts "AND WE DO NOT HAVE KEY #{lsa.key.inspect}...."
@ls_db.store(lsa.key,lsa)
puts "STORE KEY #{lsa.key.inspect}...."
lsa.maxage
puts "MAXAGE IT #{lsa.key.inspect}...."
end
else
if lsa.maxaged?
@ls_db.delete lsa.key
else
@ls_db.store(lsa.key,lsa)
end
end
end
end
|
258
259
260
|
# File 'lib/ls_db/link_state_database.rb', line 258
def refresh
all.find_all {|l| l.refresh(advertised_routers, ls_refresh_time) }
end
|
#remove_adjacency(rid, neighbor_id, prefix) ⇒ Object
98
99
100
101
102
103
104
105
|
# File 'lib/ls_db/link_state_database_build.rb', line 98
def remove_adjacency(rid, neighbor_id, prefix)
if (rlsa = lookup(:router_lsa, rid))
addr, source_address, plen, network, netmask = IPAddr.to_arr(prefix)
rlsa.delete(:point_to_point,id2ip(neighbor_id))
rlsa.delete(3,network)
end
rlsa
end
|
213
214
215
216
|
# File 'lib/ls_db/link_state_database.rb', line 213
def reset
each {|lsa| lsa.ack }
@offset=0
end
|
250
251
252
|
# File 'lib/ls_db/link_state_database.rb', line 250
def size
@ls_db.size
end
|
165
166
167
168
169
170
171
172
173
174
175
176
|
# File 'lib/ls_db/link_state_database.rb', line 165
def to_hash
h= { :area=> @area_id.to_ip }
h.store :ls_db, @ls_db.sort.collect {|p| p[1].to_hash }
h.store :advertised_routers, advertised_routers.routers
h.store :ls_refresh_time, ls_refresh_time
h.store :ls_refresh_interval, ls_refresh_interval
h
end
|
#to_s_default ⇒ Object
218
219
220
221
222
223
224
225
226
|
# File 'lib/ls_db/link_state_database.rb', line 218
def to_s_default
s = []
s << " OSPF link state database, Area #{area_id.to_ip}"
s << "Age Options Type Link-State ID Advr Router Sequence Checksum Length"
LsType.all.each do |type|
s << (__send__ "all_#{type}").collect { |l| l.to_s }
end
s.join("\n")
end
|
#to_s_junos(verbose = false) ⇒ Object
Also known as:
to_j
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
# File 'lib/ls_db/link_state_database.rb', line 228
def to_s_junos(verbose=false)
lsas = []
lsas << " OSPF link state database, Area #{area_id.to_ip}"
lsas << " Type ID Adv Rtr Seq Age Opt Cksum Len "
LsType.all.each do |type|
lsas << " OSPF AS SCOPE link state database" if type == :external
lsas << (__send__ "all_#{type}").collect { |l|
if verbose
l.to_s_junos_verbose
else
l.to_s_junos
end
}
end
lsas.join("\n")
end
|