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 64697 : static inline const char *AfiName(uint16_t afi) {
39 64697 : switch (afi) {
40 33389 : case BgpAf::IPv4:
41 33389 : return "1";
42 : break;
43 30353 : case BgpAf::IPv6:
44 30353 : return "2";
45 : break;
46 958 : case BgpAf::L2Vpn:
47 958 : return "25";
48 : break;
49 : }
50 0 : assert(false);
51 : return NULL;
52 : }
53 :
54 64703 : static inline const char *XmppSafiName(uint8_t safi) {
55 64703 : switch (safi) {
56 63750 : case BgpAf::Unicast:
57 63750 : return "1";
58 : break;
59 0 : case BgpAf::Mpls:
60 0 : return "4";
61 : break;
62 0 : case BgpAf::MVpn:
63 0 : return "5";
64 : break;
65 0 : case BgpAf::Mcast:
66 0 : return "241";
67 : break;
68 958 : case BgpAf::Enet:
69 958 : return "242";
70 : break;
71 : }
72 0 : assert(false);
73 : return NULL;
74 : }
75 :
76 8 : BgpXmppMessage::BgpXmppMessage()
77 8 : : table_(NULL),
78 8 : writer_(XmlWriter(&repr_)),
79 8 : is_reachable_(false),
80 8 : cache_routes_(false),
81 8 : repr_valid_(false),
82 8 : mobility_(0, false),
83 16 : etree_leaf_(false) {
84 8 : msg_begin_.reserve(kMaxFromToLength);
85 8 : }
86 :
87 16 : BgpXmppMessage::~BgpXmppMessage() {
88 16 : }
89 :
90 64681 : void BgpXmppMessage::Reset() {
91 64681 : Message::Reset();
92 64682 : table_ = NULL;
93 64682 : is_reachable_ = false;
94 64682 : cache_routes_ = false;
95 64682 : repr_valid_ = false;
96 64682 : repr_.clear();
97 64681 : }
98 :
99 64681 : bool BgpXmppMessage::Start(const RibOut *ribout, bool cache_routes,
100 : const RibOutAttr *roattr, const BgpRoute *route) {
101 64681 : Reset();
102 64679 : table_ = ribout->table();
103 64680 : is_reachable_ = roattr->IsReachable();
104 64678 : cache_routes_ = cache_routes;
105 64678 : Address::Family family = table_->family();
106 :
107 64677 : if (is_reachable_) {
108 41128 : const BgpAttr *attr = roattr->attr();
109 41127 : ProcessCommunity(attr->community());
110 41126 : 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 64681 : repr_.append(kMaxFromToLength, ' ');
117 :
118 : // Add opening tags for event and items. The closing tags are added when
119 : // GetData is called.
120 64682 : repr_ += "\n\t<event xmlns=\"http://jabber.org/protocol/pubsub\">";
121 64688 : repr_ += "\n\t\t<items node=\"";
122 64695 : repr_ += AfiName(BgpAf::FamilyToAfi(family));
123 64699 : repr_ += "/";
124 64709 : repr_ += XmppSafiName(BgpAf::FamilyToXmppSafi(family));
125 64709 : repr_ += "/";
126 64709 : repr_ += table_->routing_instance()->name();
127 64701 : repr_ += "\">\n";
128 :
129 64703 : if (table_->family() == Address::ERMVPN) {
130 0 : AddMcastRoute(route, roattr);
131 64703 : } else if (table_->family() == Address::EVPN) {
132 958 : AddEnetRoute(route, roattr);
133 63746 : } else if (table_->family() == Address::INET6) {
134 30354 : AddInet6Route(route, roattr);
135 33391 : } else if (table_->family() == Address::MVPN) {
136 0 : AddMvpnRoute(route, roattr);
137 : } else {
138 33389 : AddInetRoute(route, roattr);
139 : }
140 64717 : return true;
141 : }
142 :
143 64707 : void BgpXmppMessage::Finish() {
144 64707 : }
145 :
146 35307 : bool BgpXmppMessage::AddRoute(const BgpRoute *route, const RibOutAttr *roattr) {
147 35307 : assert(is_reachable_ == roattr->IsReachable());
148 35309 : if (is_reachable_ && num_reach_route_ >= kMaxReachCount)
149 0 : return false;
150 35309 : if (!is_reachable_ && num_unreach_route_ >= kMaxUnreachCount)
151 0 : return false;
152 :
153 35309 : if (is_reachable_) {
154 19553 : const BgpAttr *attr = roattr->attr();
155 19551 : ProcessCommunity(attr->community());
156 19551 : ProcessExtCommunity(attr->ext_community());
157 : }
158 :
159 35314 : if (table_->family() == Address::ERMVPN) {
160 0 : return AddMcastRoute(route, roattr);
161 35312 : } else if (table_->family() == Address::EVPN) {
162 244 : return AddEnetRoute(route, roattr);
163 35066 : } else if (table_->family() == Address::INET6) {
164 19044 : return AddInet6Route(route, roattr);
165 16021 : } else if (table_->family() == Address::MVPN) {
166 0 : return AddMvpnRoute(route, roattr);
167 : } else {
168 16032 : return AddInetRoute(route, roattr);
169 : }
170 : }
171 :
172 59574 : void BgpXmppMessage::EncodeNextHop(const BgpRoute *route,
173 : const RibOutAttr::NextHop &nexthop,
174 : autogen::ItemType *item) {
175 59574 : autogen::NextHopType item_nexthop;
176 :
177 59574 : const IpAddress &address = nexthop.address();
178 59572 : if (address.is_v4()) {
179 59572 : item_nexthop.af = BgpAf::IPv4;
180 59572 : item_nexthop.address = address.to_v4().to_string();
181 : } else {
182 0 : item_nexthop.af = BgpAf::IPv6;
183 0 : item_nexthop.address = address.to_v6().to_string();
184 : }
185 59636 : item_nexthop.label = nexthop.label();
186 59633 : item_nexthop.virtual_network = GetVirtualNetwork(nexthop);
187 59637 : item_nexthop.tag_list.tag = nexthop.tag_list();
188 59590 : 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 59590 : if (item_nexthop.label) {
193 59126 : vector<string> &encap_list =
194 : item_nexthop.tunnel_encapsulation_list.tunnel_encapsulation;
195 59126 : if (nexthop.encap().empty()) {
196 0 : encap_list.push_back(string("gre"));
197 : } else {
198 59131 : encap_list = nexthop.encap();
199 : }
200 : }
201 :
202 59580 : item->entry.next_hops.next_hop.push_back(item_nexthop);
203 59588 : }
204 :
205 59616 : void BgpXmppMessage::AddIpReach(const BgpRoute *route,
206 : const RibOutAttr *roattr) {
207 59616 : if (!roattr->repr().empty()) {
208 0 : repr_ += roattr->repr();
209 0 : return;
210 : }
211 59618 : Address::Family family = table_->family();
212 :
213 59617 : autogen::ItemType item;
214 59608 : item.entry.nlri.af = BgpAf::FamilyToAfi(family);
215 59605 : item.entry.nlri.safi = BgpAf::FamilyToXmppSafi(family);
216 59608 : item.entry.nlri.address = route->ToString();
217 59624 : item.entry.version = 1;
218 59624 : item.entry.virtual_network = GetVirtualNetwork(route, roattr);
219 59625 : item.entry.local_preference = roattr->attr()->local_pref();
220 59617 : item.entry.med = roattr->attr()->med();
221 59608 : item.entry.sequence_number = mobility_.sequence_number;
222 59608 : item.entry.mobility.seqno = mobility_.sequence_number;
223 59608 : item.entry.mobility.sticky = mobility_.sticky;
224 :
225 59608 : assert(!roattr->nexthop_list().empty());
226 :
227 : // Encode all next-hops in the list.
228 178766 : BOOST_FOREACH(const RibOutAttr::NextHop &nexthop, roattr->nexthop_list()) {
229 59576 : EncodeNextHop(route, nexthop, &item);
230 : }
231 :
232 59584 : for (vector<int>::const_iterator it = security_group_list_.begin();
233 89545 : it != security_group_list_.end(); ++it) {
234 29966 : item.entry.security_group_list.security_group.push_back(*it);
235 : }
236 :
237 59586 : for (vector<string>::const_iterator it = community_list_.begin();
238 59583 : it != community_list_.end(); ++it) {
239 0 : item.entry.community_tag_list.community_tag.push_back(*it);
240 : }
241 :
242 : // Encode load balance attribute.
243 59578 : if (!load_balance_attribute_.IsDefault())
244 0 : load_balance_attribute_.Encode(&item.entry.load_balance);
245 :
246 59577 : xml_node node = doc_.append_child("item");
247 59570 : 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 59595 : size_t pos = repr_.size();
253 59596 : item.Encode(&node);
254 59584 : doc_.print(writer_, "\t", pugi::format_default, pugi::encoding_auto, 3);
255 59625 : doc_.remove_child(node);
256 :
257 : // Cache the substring starting at the previous size.
258 59624 : if (cache_routes_)
259 4771 : roattr->set_repr(repr_, pos);
260 59624 : }
261 :
262 39188 : void BgpXmppMessage::AddIpUnreach(const BgpRoute *route) {
263 39188 : repr_ += "\t\t\t<retract id=\"" + route->ToXmppIdString() + "\" />\n";
264 39240 : }
265 :
266 49419 : bool BgpXmppMessage::AddInetRoute(const BgpRoute *route,
267 : const RibOutAttr *roattr) {
268 49419 : if (is_reachable_) {
269 29813 : num_reach_route_++;
270 29813 : AddIpReach(route, roattr);
271 : } else {
272 19606 : num_unreach_route_++;
273 19606 : AddIpUnreach(route);
274 : }
275 49471 : return true;
276 : }
277 :
278 49399 : bool BgpXmppMessage::AddInet6Route(const BgpRoute *route,
279 : const RibOutAttr *roattr) {
280 49399 : if (is_reachable_) {
281 29807 : num_reach_route_++;
282 29807 : AddIpReach(route, roattr);
283 : } else {
284 19592 : num_unreach_route_++;
285 19592 : AddIpUnreach(route);
286 : }
287 49398 : return true;
288 : }
289 :
290 1073 : void BgpXmppMessage::EncodeEnetNextHop(const BgpRoute *route,
291 : const RibOutAttr::NextHop &nexthop,
292 : autogen::EnetItemType *item) {
293 1073 : autogen::EnetNextHopType item_nexthop;
294 :
295 1073 : item_nexthop.af = BgpAf::IPv4;
296 1073 : item_nexthop.address = nexthop.address().to_v4().to_string();
297 1073 : item_nexthop.label = nexthop.label();
298 1073 : item_nexthop.l3_label = nexthop.l3_label();
299 1073 : if (!nexthop.mac().IsZero())
300 0 : item_nexthop.mac = nexthop.mac().ToString();
301 :
302 : // If encap list is empty use mpls over gre as default encap.
303 1073 : vector<string> &encap_list =
304 : item_nexthop.tunnel_encapsulation_list.tunnel_encapsulation;
305 1073 : if (nexthop.encap().empty()) {
306 0 : encap_list.push_back(string("gre"));
307 : } else {
308 1073 : encap_list = nexthop.encap();
309 : }
310 1073 : item_nexthop.tag_list.tag = nexthop.tag_list();
311 1073 : item_nexthop.is_new_tags_list = true;
312 1073 : item->entry.next_hops.next_hop.push_back(item_nexthop);
313 1073 : }
314 :
315 1073 : void BgpXmppMessage::AddEnetReach(const BgpRoute *route,
316 : const RibOutAttr *roattr) {
317 1073 : if (!roattr->repr().empty()) {
318 0 : repr_ += roattr->repr();
319 0 : return;
320 : }
321 1073 : Address::Family family = table_->family();
322 :
323 1073 : autogen::EnetItemType item;
324 1073 : item.entry.nlri.af = BgpAf::FamilyToAfi(family);
325 1073 : item.entry.nlri.safi = BgpAf::FamilyToXmppSafi(family);
326 :
327 1073 : EvpnRoute *evpn_route =
328 : static_cast<EvpnRoute *>(const_cast<BgpRoute *>(route));
329 1073 : const EvpnPrefix &evpn_prefix = evpn_route->GetPrefix();
330 1073 : item.entry.nlri.ethernet_tag = evpn_prefix.tag();
331 1073 : item.entry.nlri.mac = evpn_prefix.mac_addr().ToString();
332 2146 : item.entry.nlri.address = evpn_prefix.ip_address().to_string() + "/" +
333 3219 : integerToString(evpn_prefix.ip_address_length());
334 1073 : item.entry.nlri.source = evpn_prefix.source().to_string();
335 1073 : item.entry.nlri.group = evpn_prefix.group().to_string();
336 :
337 1073 : item.entry.virtual_network = GetVirtualNetwork(route, roattr);
338 1073 : item.entry.local_preference = roattr->attr()->local_pref();
339 1073 : item.entry.med = roattr->attr()->med();
340 1073 : item.entry.sequence_number = mobility_.sequence_number;
341 1073 : item.entry.mobility.seqno = mobility_.sequence_number;
342 1073 : item.entry.mobility.sticky = mobility_.sticky;
343 1073 : item.entry.etree_leaf = etree_leaf_;
344 :
345 1073 : for (vector<int>::const_iterator it = security_group_list_.begin();
346 2146 : it != security_group_list_.end(); ++it) {
347 1073 : item.entry.security_group_list.security_group.push_back(*it);
348 : }
349 :
350 1073 : const BgpOList *olist = roattr->attr()->olist().get();
351 1073 : assert((olist == NULL) != roattr->nexthop_list().empty());
352 :
353 1073 : if (olist) {
354 0 : assert(olist->olist().subcode == BgpAttribute::OList);
355 0 : BOOST_FOREACH(const BgpOListElem *elem, olist->elements()) {
356 0 : autogen::EnetNextHopType nh;
357 0 : nh.af = BgpAf::IPv4;
358 0 : nh.address = elem->address.to_string();
359 0 : nh.label = elem->label;
360 0 : nh.tunnel_encapsulation_list.tunnel_encapsulation = elem->encap;
361 0 : item.entry.olist.next_hop.push_back(nh);
362 0 : }
363 : }
364 :
365 1073 : const BgpOList *leaf_olist = roattr->attr()->leaf_olist().get();
366 1073 : assert((leaf_olist == NULL) != roattr->nexthop_list().empty());
367 :
368 1073 : if (leaf_olist) {
369 0 : assert(leaf_olist->olist().subcode == BgpAttribute::LeafOList);
370 0 : 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 3219 : BOOST_FOREACH(const RibOutAttr::NextHop &nexthop, roattr->nexthop_list()) {
381 1073 : EncodeEnetNextHop(route, nexthop, &item);
382 : }
383 :
384 1073 : for (const auto &peer_name : route->peer_sources()) {
385 0 : item.entry.peers.peer.push_back(peer_name);
386 : }
387 :
388 1073 : xml_node node = doc_.append_child("item");
389 1073 : 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 1073 : size_t pos = repr_.size();
395 1073 : item.Encode(&node);
396 1073 : doc_.print(writer_, "\t", pugi::format_default, pugi::encoding_auto, 3);
397 1073 : doc_.remove_child(node);
398 :
399 : // Cache the substring starting at the previous size.
400 1073 : if (cache_routes_)
401 280 : roattr->set_repr(repr_, pos);
402 1073 : }
403 :
404 129 : void BgpXmppMessage::AddEnetUnreach(const BgpRoute *route) {
405 129 : repr_ += "\t\t\t<retract id=\"" + route->ToXmppIdString() + "\" />\n";
406 129 : }
407 :
408 1202 : bool BgpXmppMessage::AddEnetRoute(const BgpRoute *route,
409 : const RibOutAttr *roattr) {
410 1202 : if (is_reachable_) {
411 1073 : num_reach_route_++;
412 1073 : AddEnetReach(route, roattr);
413 : } else {
414 129 : num_unreach_route_++;
415 129 : AddEnetUnreach(route);
416 : }
417 1202 : 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 0 : void BgpXmppMessage::AddMcastReach(const BgpRoute *route,
425 : const RibOutAttr *roattr) {
426 0 : Address::Family family = table_->family();
427 0 : autogen::McastItemType item;
428 0 : item.entry.nlri.af = BgpAf::FamilyToAfi(family);
429 0 : item.entry.nlri.safi = BgpAf::FamilyToXmppSafi(family);
430 :
431 0 : ErmVpnRoute *ermvpn_route =
432 : static_cast<ErmVpnRoute *>(const_cast<BgpRoute *>(route));
433 0 : item.entry.nlri.group = ermvpn_route->GetPrefix().group().to_string();
434 0 : item.entry.nlri.source = ermvpn_route->GetPrefix().source().to_string();
435 0 : item.entry.nlri.source_label = roattr->label();
436 0 : if (!roattr->source_address().is_unspecified()) {
437 : item.entry.nlri.source_address =
438 0 : roattr->source_address().to_string();
439 : }
440 :
441 0 : const BgpOList *olist = roattr->attr()->olist().get();
442 0 : assert(olist->olist().subcode == BgpAttribute::OList);
443 0 : BOOST_FOREACH(const BgpOListElem *elem, olist->elements()) {
444 0 : autogen::McastNextHopType nh;
445 0 : nh.af = BgpAf::IPv4;
446 0 : nh.address = elem->address.to_string();
447 0 : nh.label = integerToString(elem->label);
448 0 : nh.tunnel_encapsulation_list.tunnel_encapsulation = elem->encap;
449 0 : item.entry.olist.next_hop.push_back(nh);
450 0 : }
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 0 : xml_node node = doc_.append_child("item");
455 0 : node.append_attribute("id") = route->ToXmppIdString().c_str();
456 0 : item.Encode(&node);
457 0 : doc_.print(writer_, "\t", pugi::format_default, pugi::encoding_auto, 3);
458 0 : doc_.remove_child(node);
459 0 : }
460 :
461 0 : void BgpXmppMessage::AddMcastUnreach(const BgpRoute *route) {
462 0 : repr_ += "\t\t\t<retract id=\"" + route->ToXmppIdString() + "\" />\n";
463 0 : }
464 :
465 0 : bool BgpXmppMessage::AddMcastRoute(const BgpRoute *route,
466 : const RibOutAttr *roattr) {
467 0 : if (is_reachable_) {
468 0 : num_reach_route_++;
469 0 : AddMcastReach(route, roattr);
470 : } else {
471 0 : num_unreach_route_++;
472 0 : AddMcastUnreach(route);
473 : }
474 0 : return true;
475 : }
476 :
477 0 : void BgpXmppMessage::AddMvpnReach(const BgpRoute *route,
478 : const RibOutAttr *roattr) {
479 0 : Address::Family family = table_->family();
480 0 : autogen::MvpnItemType item;
481 0 : item.entry.nlri.af = BgpAf::FamilyToAfi(family);
482 0 : item.entry.nlri.safi = BgpAf::FamilyToXmppSafi(family);
483 :
484 0 : MvpnRoute *mvpn_route =
485 : static_cast<MvpnRoute *>(const_cast<BgpRoute *>(route));
486 0 : item.entry.nlri.group = mvpn_route->GetPrefix().group().to_string();
487 0 : item.entry.nlri.source = mvpn_route->GetPrefix().source().to_string();
488 0 : item.entry.nlri.route_type = mvpn_route->GetPrefix().type();
489 0 : assert((item.entry.nlri.route_type == MvpnPrefix::SourceActiveADRoute) ||
490 : (item.entry.nlri.route_type == MvpnPrefix::SourceTreeJoinRoute));
491 :
492 0 : if (item.entry.nlri.route_type == MvpnPrefix::SourceActiveADRoute) {
493 0 : const BgpOList *olist = roattr->attr()->olist().get();
494 0 : assert(olist->olist().subcode == BgpAttribute::OList);
495 0 : BOOST_FOREACH(const BgpOListElem *elem, olist->elements()) {
496 0 : autogen::MvpnNextHopType nh;
497 0 : nh.af = BgpAf::IPv4;
498 0 : nh.address = elem->address.to_string();
499 0 : nh.label = elem->label;
500 0 : nh.tunnel_encapsulation_list.tunnel_encapsulation = elem->encap;
501 0 : item.entry.olist.next_hop.push_back(nh);
502 0 : }
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 0 : xml_node node = doc_.append_child("item");
508 0 : node.append_attribute("id") = route->ToXmppIdString().c_str();
509 0 : item.Encode(&node);
510 0 : doc_.print(writer_, "\t", pugi::format_default, pugi::encoding_auto, 3);
511 0 : doc_.remove_child(node);
512 0 : }
513 :
514 0 : void BgpXmppMessage::AddMvpnUnreach(const BgpRoute *route) {
515 0 : repr_ += "\t\t\t<retract id=\"" + route->ToXmppIdString() + "\" />\n";
516 0 : }
517 :
518 0 : bool BgpXmppMessage::AddMvpnRoute(const BgpRoute *route,
519 : const RibOutAttr *roattr) {
520 0 : if (is_reachable_) {
521 0 : num_reach_route_++;
522 0 : AddMvpnReach(route, roattr);
523 : } else {
524 0 : num_unreach_route_++;
525 0 : AddMvpnUnreach(route);
526 : }
527 0 : return true;
528 : }
529 :
530 232009 : 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 232009 : msg_begin_.clear();
535 232018 : msg_begin_ += "\n<message from=\"";
536 232039 : msg_begin_ += XmppInit::kControlNodeJID;
537 232062 : msg_begin_ += "\" to=\"";
538 232077 : msg_begin_ += peer->ToString();
539 232101 : msg_begin_ += "/";
540 232110 : msg_begin_ += XmppInit::kBgpPeer;
541 232107 : msg_begin_ += "\">";
542 :
543 : // Add closing tags if this is the first peer to which the message will
544 : // be sent.
545 232107 : if (!repr_valid_) {
546 64725 : repr_ += "\t\t</items>\n\t</event>\n</message>\n";
547 64717 : 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 232099 : size_t begin_size = msg_begin_.size();
557 232077 : if (begin_size <= kMaxFromToLength) {
558 232092 : size_t extra = kMaxFromToLength - begin_size;
559 232092 : char *data = const_cast<char *>(repr_.c_str());
560 232093 : fill(data, data + extra, ' ');
561 232082 : copy(msg_begin_.c_str(), msg_begin_.c_str() + begin_size, data + extra);
562 232041 : *lenp = repr_.size() - extra;
563 232032 : *msg_str = &repr_;
564 232032 : return reinterpret_cast<const uint8_t *>(repr_.c_str()) + extra;
565 : } else {
566 0 : *temp = msg_begin_ + string(repr_, kMaxFromToLength);
567 0 : *lenp = temp->size();
568 0 : *msg_str = NULL;
569 0 : return reinterpret_cast<const uint8_t *>(temp->c_str());
570 : }
571 : }
572 :
573 60678 : void BgpXmppMessage::ProcessCommunity(const Community *community) {
574 60678 : community_list_.clear();
575 60676 : if (community == NULL)
576 60676 : return;
577 0 : BOOST_FOREACH(uint32_t value, community->communities()) {
578 0 : community_list_.push_back(CommunityType::CommunityToString(value));
579 : }
580 : }
581 :
582 60674 : void BgpXmppMessage::ProcessExtCommunity(const ExtCommunity *ext_community) {
583 60674 : mobility_.sequence_number = 0;
584 60674 : mobility_.sticky = false;
585 60674 : etree_leaf_ = false;
586 60674 : security_group_list_.clear();
587 60672 : load_balance_attribute_ = LoadBalance::LoadBalanceAttribute();
588 60715 : if (ext_community == NULL)
589 464 : return;
590 :
591 60251 : as_t as_number = table_->server()->autonomous_system();
592 60243 : bool sg_asn_match = true;
593 60233 : for (ExtCommunity::ExtCommunityList::const_iterator iter =
594 60243 : ext_community->communities().begin();
595 381451 : iter != ext_community->communities().end(); ++iter) {
596 321223 : if (ExtCommunity::is_security_group(*iter)) {
597 31054 : SecurityGroup sg(*iter);
598 31054 : if (as_number <= AS2_MAX)
599 31054 : if (sg.as_number() != as_number && !sg.IsGlobal())
600 0 : continue;
601 31054 : security_group_list_.push_back(sg.security_group_id());
602 290198 : } else if (ExtCommunity::is_security_group4(*iter)) {
603 0 : SecurityGroup4ByteAs sg(*iter);
604 0 : if (sg.as_number() != as_number)
605 0 : sg_asn_match = false;
606 290194 : } else if (ExtCommunity::is_mac_mobility(*iter)) {
607 0 : MacMobility mm(*iter);
608 0 : mobility_.sequence_number = mm.sequence_number();
609 0 : mobility_.sticky = mm.sticky();
610 290176 : } else if (ExtCommunity::is_load_balance(*iter)) {
611 0 : LoadBalance load_balance(*iter);
612 0 : load_balance.FillAttribute(&load_balance_attribute_);
613 290172 : } else if (ExtCommunity::is_etree(*iter)) {
614 1073 : ETree etree(*iter);
615 1073 : etree_leaf_ = etree.leaf();
616 : }
617 : }
618 60219 : if (!sg_asn_match)
619 0 : security_group_list_.clear();
620 : }
621 :
622 120294 : string BgpXmppMessage::GetVirtualNetwork(
623 : const RibOutAttr::NextHop &nexthop) const {
624 120294 : int index = nexthop.origin_vn_index();
625 120294 : if (index > 0) {
626 : const RoutingInstanceMgr *manager =
627 0 : table_->routing_instance()->manager();
628 0 : return manager->GetVirtualNetworkByVnIndex(index);
629 120298 : } else if (index == 0) {
630 6283 : return table_->routing_instance()->GetVirtualNetworkName();
631 : } else {
632 114015 : return "unresolved";
633 : }
634 : }
635 :
636 60696 : string BgpXmppMessage::GetVirtualNetwork(const BgpRoute *route,
637 : const RibOutAttr *roattr) const {
638 60696 : if (!is_reachable_) {
639 0 : return "unresolved";
640 60696 : } else if (roattr->nexthop_list().empty()) {
641 0 : if (roattr->vrf_originated()) {
642 0 : return table_->routing_instance()->GetVirtualNetworkName();
643 : } else {
644 0 : return "unresolved";
645 : }
646 : } else {
647 60674 : return GetVirtualNetwork(roattr->nexthop_list().front());
648 : }
649 : }
650 :
651 2 : BgpXmppMessageBuilder::BgpXmppMessageBuilder() {
652 3 : }
653 :
654 8 : Message *BgpXmppMessageBuilder::Create() const {
655 8 : return new BgpXmppMessage;
656 : }
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