Line data Source code
1 : /*
2 : * Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
3 : */
4 :
5 : #include "bgp/xmpp_message_builder.h"
6 :
7 : #include <boost/foreach.hpp>
8 :
9 : #include <algorithm>
10 :
11 : #include "bgp/ipeer.h"
12 : #include "bgp/bgp_server.h"
13 : #include "bgp/bgp_table.h"
14 : #include "bgp/extended-community/etree.h"
15 : #include "bgp/extended-community/mac_mobility.h"
16 : #include "bgp/ermvpn/ermvpn_route.h"
17 : #include "bgp/evpn/evpn_route.h"
18 : #include "bgp/mvpn/mvpn_route.h"
19 : #include "bgp/routing-instance/routing_instance.h"
20 : #include "bgp/security_group/security_group.h"
21 : #include "db/db.h"
22 : #include "net/community_type.h"
23 : #include "schema/xmpp_multicast_types.h"
24 : #include "schema/xmpp_mvpn_types.h"
25 : #include "schema/xmpp_enet_types.h"
26 : #include "xmpp/xmpp_init.h"
27 :
28 : using pugi::xml_attribute;
29 : using pugi::xml_document;
30 : using pugi::xml_node;
31 : using std::ostringstream;
32 : using std::copy;
33 : using std::fill;
34 : using std::string;
35 : using std::stringstream;
36 : using std::vector;
37 :
38 472827 : static inline const char *AfiName(uint16_t afi) {
39 472827 : switch (afi) {
40 264551 : case BgpAf::IPv4:
41 264551 : return "1";
42 : break;
43 197906 : case BgpAf::IPv6:
44 197906 : return "2";
45 : break;
46 10397 : case BgpAf::L2Vpn:
47 10397 : return "25";
48 : break;
49 : }
50 0 : assert(false);
51 : return NULL;
52 : }
53 :
54 472831 : static inline const char *XmppSafiName(uint8_t safi) {
55 472831 : switch (safi) {
56 453255 : case BgpAf::Unicast:
57 453255 : return "1";
58 : break;
59 6 : case BgpAf::Mpls:
60 6 : return "4";
61 : break;
62 6478 : case BgpAf::MVpn:
63 6478 : return "5";
64 : break;
65 2699 : case BgpAf::Mcast:
66 2699 : return "241";
67 : break;
68 10397 : case BgpAf::Enet:
69 10397 : return "242";
70 : break;
71 : }
72 0 : assert(false);
73 : return NULL;
74 : }
75 :
76 143 : BgpXmppMessage::BgpXmppMessage()
77 144 : : table_(NULL),
78 144 : writer_(XmlWriter(&repr_)),
79 144 : is_reachable_(false),
80 144 : cache_routes_(false),
81 144 : repr_valid_(false),
82 144 : mobility_(0, false),
83 287 : etree_leaf_(false) {
84 144 : msg_begin_.reserve(kMaxFromToLength);
85 144 : }
86 :
87 288 : BgpXmppMessage::~BgpXmppMessage() {
88 288 : }
89 :
90 472754 : void BgpXmppMessage::Reset() {
91 472754 : Message::Reset();
92 472757 : table_ = NULL;
93 472757 : is_reachable_ = false;
94 472757 : cache_routes_ = false;
95 472757 : repr_valid_ = false;
96 472757 : repr_.clear();
97 472747 : }
98 :
99 472741 : bool BgpXmppMessage::Start(const RibOut *ribout, bool cache_routes,
100 : const RibOutAttr *roattr, const BgpRoute *route) {
101 472741 : Reset();
102 472743 : table_ = ribout->table();
103 472740 : is_reachable_ = roattr->IsReachable();
104 472735 : cache_routes_ = cache_routes;
105 472735 : Address::Family family = table_->family();
106 :
107 472737 : if (is_reachable_) {
108 317143 : const BgpAttr *attr = roattr->attr();
109 317144 : ProcessCommunity(attr->community());
110 317141 : ProcessExtCommunity(attr->ext_community());
111 : }
112 :
113 : // Reserve space for the begin line that contains the message opening tag
114 : // with from and to attributes. Actual value gets patched in when GetData
115 : // is called.
116 472786 : repr_.append(kMaxFromToLength, ' ');
117 :
118 : // Add opening tags for event and items. The closing tags are added when
119 : // GetData is called.
120 472791 : repr_ += "\n\t<event xmlns=\"http://jabber.org/protocol/pubsub\">";
121 472814 : repr_ += "\n\t\t<items node=\"";
122 472834 : repr_ += AfiName(BgpAf::FamilyToAfi(family));
123 472840 : repr_ += "/";
124 472851 : repr_ += XmppSafiName(BgpAf::FamilyToXmppSafi(family));
125 472833 : repr_ += "/";
126 472832 : repr_ += table_->routing_instance()->name();
127 472827 : repr_ += "\">\n";
128 :
129 472832 : if (table_->family() == Address::ERMVPN) {
130 2699 : AddMcastRoute(route, roattr);
131 470125 : } else if (table_->family() == Address::EVPN) {
132 10397 : AddEnetRoute(route, roattr);
133 459712 : } else if (table_->family() == Address::INET6) {
134 197898 : AddInet6Route(route, roattr);
135 261822 : } else if (table_->family() == Address::MVPN) {
136 6478 : AddMvpnRoute(route, roattr);
137 : } else {
138 255362 : AddInetRoute(route, roattr);
139 : }
140 472883 : return true;
141 : }
142 :
143 472896 : void BgpXmppMessage::Finish() {
144 472896 : }
145 :
146 615940 : bool BgpXmppMessage::AddRoute(const BgpRoute *route, const RibOutAttr *roattr) {
147 615940 : assert(is_reachable_ == roattr->IsReachable());
148 615932 : if (is_reachable_ && num_reach_route_ >= kMaxReachCount)
149 191 : return false;
150 615741 : if (!is_reachable_ && num_unreach_route_ >= kMaxUnreachCount)
151 8 : return false;
152 :
153 615733 : if (is_reachable_) {
154 519163 : const BgpAttr *attr = roattr->attr();
155 519160 : ProcessCommunity(attr->community());
156 519160 : ProcessExtCommunity(attr->ext_community());
157 : }
158 :
159 615739 : if (table_->family() == Address::ERMVPN) {
160 139 : return AddMcastRoute(route, roattr);
161 615596 : } else if (table_->family() == Address::EVPN) {
162 2237 : return AddEnetRoute(route, roattr);
163 613355 : } else if (table_->family() == Address::INET6) {
164 121355 : return AddInet6Route(route, roattr);
165 491998 : } else if (table_->family() == Address::MVPN) {
166 190464 : return AddMvpnRoute(route, roattr);
167 : } else {
168 301579 : return AddInetRoute(route, roattr);
169 : }
170 : }
171 :
172 530485 : void BgpXmppMessage::EncodeNextHop(const BgpRoute *route,
173 : const RibOutAttr::NextHop &nexthop,
174 : autogen::ItemType *item) {
175 530485 : autogen::NextHopType item_nexthop;
176 :
177 530472 : const IpAddress &address = nexthop.address();
178 530469 : if (address.is_v4()) {
179 527172 : item_nexthop.af = BgpAf::IPv4;
180 527172 : item_nexthop.address = address.to_v4().to_string();
181 : } else {
182 3296 : item_nexthop.af = BgpAf::IPv6;
183 3296 : item_nexthop.address = address.to_v6().to_string();
184 : }
185 530735 : item_nexthop.label = nexthop.label();
186 530728 : item_nexthop.virtual_network = GetVirtualNetwork(nexthop);
187 530727 : item_nexthop.tag_list.tag = nexthop.tag_list();
188 530553 : item_nexthop.is_new_tags_list = true;
189 :
190 : // If there's a non-zero label and encap list is empty use mpls over gre
191 : // as default encap.
192 530553 : if (item_nexthop.label) {
193 521527 : vector<string> &encap_list =
194 : item_nexthop.tunnel_encapsulation_list.tunnel_encapsulation;
195 521527 : if (nexthop.encap().empty()) {
196 100616 : encap_list.push_back(string("gre"));
197 : } else {
198 420928 : encap_list = nexthop.encap();
199 : }
200 : }
201 :
202 530483 : item->entry.next_hops.next_hop.push_back(item_nexthop);
203 530546 : }
204 :
205 626507 : void BgpXmppMessage::AddIpReach(const BgpRoute *route,
206 : const RibOutAttr *roattr) {
207 626507 : if (!roattr->repr().empty()) {
208 98208 : repr_ += roattr->repr();
209 98208 : return;
210 : }
211 528313 : Address::Family family = table_->family();
212 :
213 528306 : autogen::ItemType item;
214 528279 : item.entry.nlri.af = BgpAf::FamilyToAfi(family);
215 528274 : item.entry.nlri.safi = BgpAf::FamilyToXmppSafi(family);
216 528274 : item.entry.nlri.address = route->ToString();
217 528377 : item.entry.version = 1;
218 528377 : item.entry.virtual_network = GetVirtualNetwork(route, roattr);
219 528382 : item.entry.local_preference = roattr->attr()->local_pref();
220 528345 : item.entry.med = roattr->attr()->med();
221 528332 : item.entry.sequence_number = mobility_.sequence_number;
222 528332 : item.entry.mobility.seqno = mobility_.sequence_number;
223 528332 : item.entry.mobility.sticky = mobility_.sticky;
224 :
225 528332 : assert(!roattr->nexthop_list().empty());
226 :
227 : // Encode all next-hops in the list.
228 1589352 : BOOST_FOREACH(const RibOutAttr::NextHop &nexthop, roattr->nexthop_list()) {
229 530497 : EncodeNextHop(route, nexthop, &item);
230 : }
231 :
232 528246 : for (vector<int>::const_iterator it = security_group_list_.begin();
233 850719 : it != security_group_list_.end(); ++it) {
234 322515 : item.entry.security_group_list.security_group.push_back(*it);
235 : }
236 :
237 528207 : for (vector<string>::const_iterator it = community_list_.begin();
238 540284 : it != community_list_.end(); ++it) {
239 12086 : item.entry.community_tag_list.community_tag.push_back(*it);
240 : }
241 :
242 : // Encode load balance attribute.
243 528190 : if (!load_balance_attribute_.IsDefault())
244 4 : load_balance_attribute_.Encode(&item.entry.load_balance);
245 :
246 528187 : xml_node node = doc_.append_child("item");
247 528123 : node.append_attribute("id") = route->ToXmppIdString().c_str();
248 :
249 : // Remember the previous size.
250 : // Using remove_child instead of reset allows memory pages allocated for
251 : // the xml_document to be reused during the lifetime of the xml_document.
252 528225 : size_t pos = repr_.size();
253 528222 : item.Encode(&node);
254 528239 : doc_.print(writer_, "\t", pugi::format_default, pugi::encoding_auto, 3);
255 528359 : doc_.remove_child(node);
256 :
257 : // Cache the substring starting at the previous size.
258 528346 : if (cache_routes_)
259 29650 : roattr->set_repr(repr_, pos);
260 528350 : }
261 :
262 249610 : void BgpXmppMessage::AddIpUnreach(const BgpRoute *route) {
263 249610 : repr_ += "\t\t\t<retract id=\"" + route->ToXmppIdString() + "\" />\n";
264 249709 : }
265 :
266 556942 : bool BgpXmppMessage::AddInetRoute(const BgpRoute *route,
267 : const RibOutAttr *roattr) {
268 556942 : if (is_reachable_) {
269 424582 : num_reach_route_++;
270 424582 : AddIpReach(route, roattr);
271 : } else {
272 132360 : num_unreach_route_++;
273 132360 : AddIpUnreach(route);
274 : }
275 556993 : return true;
276 : }
277 :
278 319245 : bool BgpXmppMessage::AddInet6Route(const BgpRoute *route,
279 : const RibOutAttr *roattr) {
280 319245 : if (is_reachable_) {
281 201961 : num_reach_route_++;
282 201961 : AddIpReach(route, roattr);
283 : } else {
284 117284 : num_unreach_route_++;
285 117284 : AddIpUnreach(route);
286 : }
287 319302 : return true;
288 : }
289 :
290 9083 : void BgpXmppMessage::EncodeEnetNextHop(const BgpRoute *route,
291 : const RibOutAttr::NextHop &nexthop,
292 : autogen::EnetItemType *item) {
293 9083 : autogen::EnetNextHopType item_nexthop;
294 :
295 9083 : item_nexthop.af = BgpAf::IPv4;
296 9083 : item_nexthop.address = nexthop.address().to_v4().to_string();
297 9083 : item_nexthop.label = nexthop.label();
298 9083 : item_nexthop.l3_label = nexthop.l3_label();
299 9083 : if (!nexthop.mac().IsZero())
300 20 : item_nexthop.mac = nexthop.mac().ToString();
301 :
302 : // If encap list is empty use mpls over gre as default encap.
303 9083 : vector<string> &encap_list =
304 : item_nexthop.tunnel_encapsulation_list.tunnel_encapsulation;
305 9083 : if (nexthop.encap().empty()) {
306 0 : encap_list.push_back(string("gre"));
307 : } else {
308 9083 : encap_list = nexthop.encap();
309 : }
310 9083 : item_nexthop.tag_list.tag = nexthop.tag_list();
311 9083 : item_nexthop.is_new_tags_list = true;
312 9083 : item->entry.next_hops.next_hop.push_back(item_nexthop);
313 9083 : }
314 :
315 10645 : void BgpXmppMessage::AddEnetReach(const BgpRoute *route,
316 : const RibOutAttr *roattr) {
317 10645 : if (!roattr->repr().empty()) {
318 0 : repr_ += roattr->repr();
319 0 : return;
320 : }
321 10645 : Address::Family family = table_->family();
322 :
323 10645 : autogen::EnetItemType item;
324 10645 : item.entry.nlri.af = BgpAf::FamilyToAfi(family);
325 10645 : item.entry.nlri.safi = BgpAf::FamilyToXmppSafi(family);
326 :
327 10645 : EvpnRoute *evpn_route =
328 : static_cast<EvpnRoute *>(const_cast<BgpRoute *>(route));
329 10645 : const EvpnPrefix &evpn_prefix = evpn_route->GetPrefix();
330 10645 : item.entry.nlri.ethernet_tag = evpn_prefix.tag();
331 10645 : item.entry.nlri.mac = evpn_prefix.mac_addr().ToString();
332 21290 : item.entry.nlri.address = evpn_prefix.ip_address().to_string() + "/" +
333 31935 : integerToString(evpn_prefix.ip_address_length());
334 10645 : item.entry.nlri.source = evpn_prefix.source().to_string();
335 10645 : item.entry.nlri.group = evpn_prefix.group().to_string();
336 :
337 10645 : item.entry.virtual_network = GetVirtualNetwork(route, roattr);
338 10645 : item.entry.local_preference = roattr->attr()->local_pref();
339 10645 : item.entry.med = roattr->attr()->med();
340 10645 : item.entry.sequence_number = mobility_.sequence_number;
341 10645 : item.entry.mobility.seqno = mobility_.sequence_number;
342 10645 : item.entry.mobility.sticky = mobility_.sticky;
343 10645 : item.entry.etree_leaf = etree_leaf_;
344 :
345 10645 : for (vector<int>::const_iterator it = security_group_list_.begin();
346 21298 : it != security_group_list_.end(); ++it) {
347 10653 : item.entry.security_group_list.security_group.push_back(*it);
348 : }
349 :
350 10645 : const BgpOList *olist = roattr->attr()->olist().get();
351 10645 : assert((olist == NULL) != roattr->nexthop_list().empty());
352 :
353 10645 : if (olist) {
354 1690 : assert(olist->olist().subcode == BgpAttribute::OList);
355 15832 : BOOST_FOREACH(const BgpOListElem *elem, olist->elements()) {
356 7071 : autogen::EnetNextHopType nh;
357 7071 : nh.af = BgpAf::IPv4;
358 7071 : nh.address = elem->address.to_string();
359 7071 : nh.label = elem->label;
360 7071 : nh.tunnel_encapsulation_list.tunnel_encapsulation = elem->encap;
361 7071 : item.entry.olist.next_hop.push_back(nh);
362 7071 : }
363 : }
364 :
365 10645 : const BgpOList *leaf_olist = roattr->attr()->leaf_olist().get();
366 10645 : assert((leaf_olist == NULL) != roattr->nexthop_list().empty());
367 :
368 10645 : if (leaf_olist) {
369 1690 : assert(leaf_olist->olist().subcode == BgpAttribute::LeafOList);
370 1690 : BOOST_FOREACH(const BgpOListElem *elem, leaf_olist->elements()) {
371 0 : autogen::EnetNextHopType nh;
372 0 : nh.af = BgpAf::IPv4;
373 0 : nh.address = elem->address.to_string();
374 0 : nh.label = elem->label;
375 0 : nh.tunnel_encapsulation_list.tunnel_encapsulation = elem->encap;
376 0 : item.entry.leaf_olist.next_hop.push_back(nh);
377 0 : }
378 : }
379 :
380 28811 : BOOST_FOREACH(const RibOutAttr::NextHop &nexthop, roattr->nexthop_list()) {
381 9083 : EncodeEnetNextHop(route, nexthop, &item);
382 : }
383 :
384 11540 : for (const auto &peer_name : route->peer_sources()) {
385 895 : item.entry.peers.peer.push_back(peer_name);
386 : }
387 :
388 10645 : xml_node node = doc_.append_child("item");
389 10645 : node.append_attribute("id") = route->ToXmppIdString().c_str();
390 :
391 : // Remember the previous size.
392 : // Using remove_child instead of reset allows memory pages allocated for
393 : // the xml_document to be reused during the lifetime of the xml_document.
394 10645 : size_t pos = repr_.size();
395 10645 : item.Encode(&node);
396 10645 : doc_.print(writer_, "\t", pugi::format_default, pugi::encoding_auto, 3);
397 10645 : doc_.remove_child(node);
398 :
399 : // Cache the substring starting at the previous size.
400 10645 : if (cache_routes_)
401 1969 : roattr->set_repr(repr_, pos);
402 10645 : }
403 :
404 1989 : void BgpXmppMessage::AddEnetUnreach(const BgpRoute *route) {
405 1989 : repr_ += "\t\t\t<retract id=\"" + route->ToXmppIdString() + "\" />\n";
406 1989 : }
407 :
408 12634 : bool BgpXmppMessage::AddEnetRoute(const BgpRoute *route,
409 : const RibOutAttr *roattr) {
410 12634 : if (is_reachable_) {
411 10645 : num_reach_route_++;
412 10645 : AddEnetReach(route, roattr);
413 : } else {
414 1989 : num_unreach_route_++;
415 1989 : AddEnetUnreach(route);
416 : }
417 12634 : return true;
418 : }
419 :
420 : //
421 : // Note that there's no need to cache the string representation since a given
422 : // mcast route is sent to exactly one xmpp peer.
423 : //
424 2377 : void BgpXmppMessage::AddMcastReach(const BgpRoute *route,
425 : const RibOutAttr *roattr) {
426 2377 : Address::Family family = table_->family();
427 2377 : autogen::McastItemType item;
428 2377 : item.entry.nlri.af = BgpAf::FamilyToAfi(family);
429 2377 : item.entry.nlri.safi = BgpAf::FamilyToXmppSafi(family);
430 :
431 2377 : ErmVpnRoute *ermvpn_route =
432 : static_cast<ErmVpnRoute *>(const_cast<BgpRoute *>(route));
433 2377 : item.entry.nlri.group = ermvpn_route->GetPrefix().group().to_string();
434 2377 : item.entry.nlri.source = ermvpn_route->GetPrefix().source().to_string();
435 2377 : item.entry.nlri.source_label = roattr->label();
436 2377 : if (!roattr->source_address().is_unspecified()) {
437 : item.entry.nlri.source_address =
438 149 : roattr->source_address().to_string();
439 : }
440 :
441 2377 : const BgpOList *olist = roattr->attr()->olist().get();
442 2377 : assert(olist->olist().subcode == BgpAttribute::OList);
443 7461 : BOOST_FOREACH(const BgpOListElem *elem, olist->elements()) {
444 2542 : autogen::McastNextHopType nh;
445 2542 : nh.af = BgpAf::IPv4;
446 2542 : nh.address = elem->address.to_string();
447 2542 : nh.label = integerToString(elem->label);
448 2542 : nh.tunnel_encapsulation_list.tunnel_encapsulation = elem->encap;
449 2542 : item.entry.olist.next_hop.push_back(nh);
450 2542 : }
451 :
452 : // Using remove_child instead of reset allows memory pages allocated for
453 : // the xml_document to be reused during the lifetime of the xml_document.
454 2377 : xml_node node = doc_.append_child("item");
455 2377 : node.append_attribute("id") = route->ToXmppIdString().c_str();
456 2377 : item.Encode(&node);
457 2377 : doc_.print(writer_, "\t", pugi::format_default, pugi::encoding_auto, 3);
458 2377 : doc_.remove_child(node);
459 2377 : }
460 :
461 461 : void BgpXmppMessage::AddMcastUnreach(const BgpRoute *route) {
462 461 : repr_ += "\t\t\t<retract id=\"" + route->ToXmppIdString() + "\" />\n";
463 461 : }
464 :
465 2838 : bool BgpXmppMessage::AddMcastRoute(const BgpRoute *route,
466 : const RibOutAttr *roattr) {
467 2838 : if (is_reachable_) {
468 2377 : num_reach_route_++;
469 2377 : AddMcastReach(route, roattr);
470 : } else {
471 461 : num_unreach_route_++;
472 461 : AddMcastUnreach(route);
473 : }
474 2838 : return true;
475 : }
476 :
477 196818 : void BgpXmppMessage::AddMvpnReach(const BgpRoute *route,
478 : const RibOutAttr *roattr) {
479 196818 : Address::Family family = table_->family();
480 196818 : autogen::MvpnItemType item;
481 196818 : item.entry.nlri.af = BgpAf::FamilyToAfi(family);
482 196818 : item.entry.nlri.safi = BgpAf::FamilyToXmppSafi(family);
483 :
484 196818 : MvpnRoute *mvpn_route =
485 : static_cast<MvpnRoute *>(const_cast<BgpRoute *>(route));
486 196818 : item.entry.nlri.group = mvpn_route->GetPrefix().group().to_string();
487 196818 : item.entry.nlri.source = mvpn_route->GetPrefix().source().to_string();
488 196818 : item.entry.nlri.route_type = mvpn_route->GetPrefix().type();
489 196818 : assert((item.entry.nlri.route_type == MvpnPrefix::SourceActiveADRoute) ||
490 : (item.entry.nlri.route_type == MvpnPrefix::SourceTreeJoinRoute));
491 :
492 196818 : if (item.entry.nlri.route_type == MvpnPrefix::SourceActiveADRoute) {
493 196724 : const BgpOList *olist = roattr->attr()->olist().get();
494 196724 : assert(olist->olist().subcode == BgpAttribute::OList);
495 590172 : BOOST_FOREACH(const BgpOListElem *elem, olist->elements()) {
496 196724 : autogen::MvpnNextHopType nh;
497 196724 : nh.af = BgpAf::IPv4;
498 196724 : nh.address = elem->address.to_string();
499 196724 : nh.label = elem->label;
500 196724 : nh.tunnel_encapsulation_list.tunnel_encapsulation = elem->encap;
501 196724 : item.entry.olist.next_hop.push_back(nh);
502 196724 : }
503 : }
504 :
505 : // Using remove_child instead of reset allows memory pages allocated for
506 : // the xml_document to be reused during the lifetime of the xml_document.
507 196818 : xml_node node = doc_.append_child("item");
508 196818 : node.append_attribute("id") = route->ToXmppIdString().c_str();
509 196818 : item.Encode(&node);
510 196818 : doc_.print(writer_, "\t", pugi::format_default, pugi::encoding_auto, 3);
511 196818 : doc_.remove_child(node);
512 196818 : }
513 :
514 124 : void BgpXmppMessage::AddMvpnUnreach(const BgpRoute *route) {
515 124 : repr_ += "\t\t\t<retract id=\"" + route->ToXmppIdString() + "\" />\n";
516 124 : }
517 :
518 196942 : bool BgpXmppMessage::AddMvpnRoute(const BgpRoute *route,
519 : const RibOutAttr *roattr) {
520 196942 : if (is_reachable_) {
521 196818 : num_reach_route_++;
522 196818 : AddMvpnReach(route, roattr);
523 : } else {
524 124 : num_unreach_route_++;
525 124 : AddMvpnUnreach(route);
526 : }
527 196942 : return true;
528 : }
529 :
530 14168274 : const uint8_t *BgpXmppMessage::GetData(IPeerUpdate *peer, size_t *lenp,
531 : const string **msg_str, string *temp) {
532 : // Build begin line that contains message opening tag with from and to
533 : // attributes.
534 14168274 : msg_begin_.clear();
535 14168332 : msg_begin_ += "\n<message from=\"";
536 14168403 : msg_begin_ += XmppInit::kControlNodeJID;
537 14168481 : msg_begin_ += "\" to=\"";
538 14168564 : msg_begin_ += peer->ToString();
539 14168608 : msg_begin_ += "/";
540 14168620 : msg_begin_ += XmppInit::kBgpPeer;
541 14168575 : msg_begin_ += "\">";
542 :
543 : // Add closing tags if this is the first peer to which the message will
544 : // be sent.
545 14168599 : if (!repr_valid_) {
546 472898 : repr_ += "\t\t</items>\n\t</event>\n</message>\n";
547 472885 : repr_valid_ = true;
548 : }
549 :
550 : // Replace the begin line if it fits in the space reserved at the start
551 : // of repr_. Use fill and copy instead of string::replace as the latter
552 : // seems to construct a new temporary string to hold the input data to
553 : // be copied.
554 : // Otherwise build a new string with the begin line and the rest of the
555 : // message in repr_.
556 14168586 : size_t begin_size = msg_begin_.size();
557 14168491 : if (begin_size <= kMaxFromToLength) {
558 9974227 : size_t extra = kMaxFromToLength - begin_size;
559 9974227 : char *data = const_cast<char *>(repr_.c_str());
560 9974222 : fill(data, data + extra, ' ');
561 9974251 : copy(msg_begin_.c_str(), msg_begin_.c_str() + begin_size, data + extra);
562 9974094 : *lenp = repr_.size() - extra;
563 9974088 : *msg_str = &repr_;
564 9974088 : return reinterpret_cast<const uint8_t *>(repr_.c_str()) + extra;
565 : } else {
566 4194264 : *temp = msg_begin_ + string(repr_, kMaxFromToLength);
567 4194304 : *lenp = temp->size();
568 4194304 : *msg_str = NULL;
569 4194304 : return reinterpret_cast<const uint8_t *>(temp->c_str());
570 : }
571 : }
572 :
573 836276 : void BgpXmppMessage::ProcessCommunity(const Community *community) {
574 836276 : community_list_.clear();
575 836296 : if (community == NULL)
576 824232 : return;
577 36182 : BOOST_FOREACH(uint32_t value, community->communities()) {
578 12085 : community_list_.push_back(CommunityType::CommunityToString(value));
579 : }
580 : }
581 :
582 836282 : void BgpXmppMessage::ProcessExtCommunity(const ExtCommunity *ext_community) {
583 836282 : mobility_.sequence_number = 0;
584 836282 : mobility_.sticky = false;
585 836282 : etree_leaf_ = false;
586 836282 : security_group_list_.clear();
587 836289 : load_balance_attribute_ = LoadBalance::LoadBalanceAttribute();
588 836498 : if (ext_community == NULL)
589 208122 : return;
590 :
591 628376 : as_t as_number = table_->server()->autonomous_system();
592 628323 : bool sg_asn_match = true;
593 628288 : for (ExtCommunity::ExtCommunityList::const_iterator iter =
594 628323 : ext_community->communities().begin();
595 3681211 : iter != ext_community->communities().end(); ++iter) {
596 3052980 : if (ExtCommunity::is_security_group(*iter)) {
597 431522 : SecurityGroup sg(*iter);
598 431517 : if (as_number <= AS2_MAX)
599 234909 : if (sg.as_number() != as_number && !sg.IsGlobal())
600 2 : continue;
601 431523 : security_group_list_.push_back(sg.security_group_id());
602 2621550 : } else if (ExtCommunity::is_security_group4(*iter)) {
603 196608 : SecurityGroup4ByteAs sg(*iter);
604 196608 : if (sg.as_number() != as_number)
605 0 : sg_asn_match = false;
606 2424902 : } else if (ExtCommunity::is_mac_mobility(*iter)) {
607 1079 : MacMobility mm(*iter);
608 1079 : mobility_.sequence_number = mm.sequence_number();
609 1079 : mobility_.sticky = mm.sticky();
610 2423785 : } else if (ExtCommunity::is_load_balance(*iter)) {
611 4 : LoadBalance load_balance(*iter);
612 4 : load_balance.FillAttribute(&load_balance_attribute_);
613 2423755 : } else if (ExtCommunity::is_etree(*iter)) {
614 9526 : ETree etree(*iter);
615 9526 : etree_leaf_ = etree.leaf();
616 : }
617 : }
618 628209 : if (!sg_asn_match)
619 0 : security_group_list_.clear();
620 : }
621 :
622 1067909 : string BgpXmppMessage::GetVirtualNetwork(
623 : const RibOutAttr::NextHop &nexthop) const {
624 1067909 : int index = nexthop.origin_vn_index();
625 1067913 : if (index > 0) {
626 : const RoutingInstanceMgr *manager =
627 69136 : table_->routing_instance()->manager();
628 69043 : return manager->GetVirtualNetworkByVnIndex(index);
629 998777 : } else if (index == 0) {
630 61248 : return table_->routing_instance()->GetVirtualNetworkName();
631 : } else {
632 937529 : return "unresolved";
633 : }
634 : }
635 :
636 539004 : string BgpXmppMessage::GetVirtualNetwork(const BgpRoute *route,
637 : const RibOutAttr *roattr) const {
638 539004 : if (!is_reachable_) {
639 0 : return "unresolved";
640 539004 : } else if (roattr->nexthop_list().empty()) {
641 1690 : if (roattr->vrf_originated()) {
642 1690 : return table_->routing_instance()->GetVirtualNetworkName();
643 : } else {
644 0 : return "unresolved";
645 : }
646 : } else {
647 537255 : return GetVirtualNetwork(roattr->nexthop_list().front());
648 : }
649 : }
650 :
651 50 : BgpXmppMessageBuilder::BgpXmppMessageBuilder() {
652 51 : }
653 :
654 144 : Message *BgpXmppMessageBuilder::Create() const {
655 144 : return new BgpXmppMessage;
656 : }
|
