/
community.cc
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community.cc
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/*
* Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
*/
#include "bgp/community.h"
#include <algorithm>
#include <string>
#include <boost/foreach.hpp>
#include "bgp/bgp_proto.h"
#include "bgp/tunnel_encap/tunnel_encap.h"
using std::sort;
using std::string;
using std::unique;
using std::vector;
void CommunitySpec::ToCanonical(BgpAttr *attr) {
attr->set_community(this);
}
string CommunitySpec::ToString() const {
string repr;
char start[32];
snprintf(start, sizeof(start), "Communities: %lu [", communities.size());
repr += start;
for (size_t i = 0; i < communities.size(); ++i) {
char community[12];
snprintf(community, sizeof(community), " %X", communities[i]);
repr += community;
}
repr += " ]";
return repr;
}
Community::Community(CommunityDB *comm_db, const CommunitySpec spec)
: comm_db_(comm_db), communities_(spec.communities) {
refcount_ = 0;
sort(communities_.begin(), communities_.end());
vector<uint32_t>::iterator it =
unique(communities_.begin(), communities_.end());
communities_.erase(it, communities_.end());
}
int Community::CompareTo(const Community &rhs) const {
KEY_COMPARE(communities_, rhs.communities_);
return 0;
}
size_t CommunitySpec::EncodeLength() const {
return communities.size() * sizeof(uint32_t);
}
void Community::Remove() {
comm_db_->Delete(this);
}
bool Community::ContainsValue(uint32_t value) const {
BOOST_FOREACH(uint32_t community, communities_) {
if (community == value)
return true;
}
return false;
}
CommunityDB::CommunityDB(BgpServer *server) {
}
string ExtCommunitySpec::ToString() const {
char repr[80];
snprintf(repr, sizeof(repr), "ExtCommunity <code: %d, flags: %02x>:%d",
code, flags, (uint32_t)communities.size());
return string(repr);
}
size_t ExtCommunitySpec::EncodeLength() const {
return communities.size() * sizeof(uint64_t);
}
int ExtCommunitySpec::CompareTo(const BgpAttribute &rhs_attr) const {
int ret = BgpAttribute::CompareTo(rhs_attr);
if (ret != 0) return ret;
KEY_COMPARE(communities,
static_cast<const ExtCommunitySpec &>(rhs_attr).communities);
return 0;
}
void ExtCommunitySpec::ToCanonical(BgpAttr *attr) {
attr->set_ext_community(this);
}
int ExtCommunity::CompareTo(const ExtCommunity &rhs) const {
KEY_COMPARE(communities_.size(), rhs.communities_.size());
ExtCommunityList::const_iterator i, j;
for (i = communities_.begin(), j = rhs.communities_.begin();
i < communities_.end(); ++i, ++j) {
if (*i < *j) {
return -1;
}
if (*i > *j) {
return 1;
}
}
return 0;
}
void ExtCommunity::Remove() {
extcomm_db_->Delete(this);
}
void ExtCommunity::Append(const ExtCommunityList &list) {
communities_.insert(communities_.end(), list.begin(), list.end());
sort(communities_.begin(), communities_.end());
ExtCommunityList::iterator it =
unique(communities_.begin(), communities_.end());
communities_.erase(it, communities_.end());
}
void ExtCommunity::Append(const ExtCommunityValue &value) {
communities_.push_back(value);
sort(communities_.begin(), communities_.end());
ExtCommunityList::iterator it =
unique(communities_.begin(), communities_.end());
communities_.erase(it, communities_.end());
}
bool ExtCommunity::ContainsOriginVn(const ExtCommunityValue &val) const {
for (ExtCommunityList::const_iterator it = communities_.begin();
it != communities_.end(); ++it) {
if (ExtCommunity::is_origin_vn(*it) && *it == val)
return true;
}
return false;
}
void ExtCommunity::RemoveRTarget() {
for (ExtCommunityList::iterator it = communities_.begin();
it != communities_.end(); ) {
if (ExtCommunity::is_route_target(*it)) {
it = communities_.erase(it);
} else {
++it;
}
}
}
void ExtCommunity::RemoveSGID() {
for (ExtCommunityList::iterator it = communities_.begin();
it != communities_.end(); ) {
if (ExtCommunity::is_security_group(*it)) {
it = communities_.erase(it);
} else {
++it;
}
}
}
void ExtCommunity::RemoveSiteOfOrigin() {
for (ExtCommunityList::iterator it = communities_.begin();
it != communities_.end(); ) {
if (ExtCommunity::is_site_of_origin(*it)) {
it = communities_.erase(it);
} else {
++it;
}
}
}
void ExtCommunity::RemoveOriginVn() {
for (ExtCommunityList::iterator it = communities_.begin();
it != communities_.end(); ) {
if (ExtCommunity::is_origin_vn(*it)) {
it = communities_.erase(it);
} else {
++it;
}
}
}
void ExtCommunity::RemoveTunnelEncapsulation() {
for (ExtCommunityList::iterator it = communities_.begin();
it != communities_.end(); ) {
if (ExtCommunity::is_tunnel_encap(*it)) {
it = communities_.erase(it);
} else {
++it;
}
}
}
vector<string> ExtCommunity::GetTunnelEncap() const {
vector<string> encap_list;
for (ExtCommunityList::const_iterator iter = communities_.begin();
iter != communities_.end(); ++iter) {
if (!ExtCommunity::is_tunnel_encap(*iter))
continue;
TunnelEncap encap(*iter);
if (encap.tunnel_encap() == TunnelEncapType::UNSPEC)
continue;
encap_list.push_back(encap.ToXmppString());
}
sort(encap_list.begin(), encap_list.end());
vector<string>::iterator encap_iter =
unique(encap_list.begin(), encap_list.end());
encap_list.erase(encap_iter, encap_list.end());
return encap_list;
}
bool ExtCommunity::ContainsTunnelEncapVxlan() const {
for (ExtCommunityList::const_iterator iter = communities_.begin();
iter != communities_.end(); ++iter) {
if (!ExtCommunity::is_tunnel_encap(*iter))
continue;
TunnelEncap encap(*iter);
if (encap.tunnel_encap() == TunnelEncapType::VXLAN)
return true;
if (encap.tunnel_encap() == TunnelEncapType::VXLAN_CONTRAIL)
return true;
}
return false;
}
ExtCommunity::ExtCommunity(ExtCommunityDB *extcomm_db,
const ExtCommunitySpec spec) : extcomm_db_(extcomm_db) {
refcount_ = 0;
for (vector<uint64_t>::const_iterator it = spec.communities.begin();
it < spec.communities.end(); ++it) {
ExtCommunityValue comm;
put_value(comm.data(), comm.size(), *it);
communities_.push_back(comm);
}
sort(communities_.begin(), communities_.end());
ExtCommunityList::iterator it =
unique(communities_.begin(), communities_.end());
communities_.erase(it, communities_.end());
}
ExtCommunityDB::ExtCommunityDB(BgpServer *server) {
}
ExtCommunityPtr ExtCommunityDB::AppendAndLocate(const ExtCommunity *src,
const ExtCommunity::ExtCommunityList &list) {
ExtCommunity *clone;
if (src) {
clone = new ExtCommunity(*src);
} else {
clone = new ExtCommunity(this);
}
clone->Append(list);
return Locate(clone);
}
ExtCommunityPtr ExtCommunityDB::AppendAndLocate(const ExtCommunity *src,
const ExtCommunity::ExtCommunityValue &value) {
ExtCommunity::ExtCommunityList list;
list.push_back(value);
return AppendAndLocate(src, list);
}
ExtCommunityPtr ExtCommunityDB::ReplaceRTargetAndLocate(const ExtCommunity *src,
const ExtCommunity::ExtCommunityList &export_list) {
ExtCommunity *clone;
if (src) {
clone = new ExtCommunity(*src);
} else {
clone = new ExtCommunity(this);
}
clone->RemoveRTarget();
clone->Append(export_list);
return Locate(clone);
}
ExtCommunityPtr ExtCommunityDB::ReplaceSGIDListAndLocate(
const ExtCommunity *src,
const ExtCommunity::ExtCommunityList &sgid_list) {
ExtCommunity *clone;
if (src) {
clone = new ExtCommunity(*src);
} else {
clone = new ExtCommunity(this);
}
clone->RemoveSGID();
clone->Append(sgid_list);
return Locate(clone);
}
ExtCommunityPtr ExtCommunityDB::RemoveSiteOfOriginAndLocate(
const ExtCommunity *src) {
ExtCommunity *clone;
if (src) {
clone = new ExtCommunity(*src);
} else {
clone = new ExtCommunity(this);
}
clone->RemoveSiteOfOrigin();
return Locate(clone);
}
ExtCommunityPtr ExtCommunityDB::ReplaceSiteOfOriginAndLocate(
const ExtCommunity *src,
const ExtCommunity::ExtCommunityValue &soo) {
ExtCommunity *clone;
if (src) {
clone = new ExtCommunity(*src);
} else {
clone = new ExtCommunity(this);
}
clone->RemoveSiteOfOrigin();
clone->Append(soo);
return Locate(clone);
}
ExtCommunityPtr ExtCommunityDB::RemoveOriginVnAndLocate(
const ExtCommunity *src) {
ExtCommunity *clone;
if (src) {
clone = new ExtCommunity(*src);
} else {
clone = new ExtCommunity(this);
}
clone->RemoveOriginVn();
return Locate(clone);
}
ExtCommunityPtr ExtCommunityDB::ReplaceOriginVnAndLocate(
const ExtCommunity *src,
const ExtCommunity::ExtCommunityValue &origin_vn) {
ExtCommunity *clone;
if (src) {
clone = new ExtCommunity(*src);
} else {
clone = new ExtCommunity(this);
}
clone->RemoveOriginVn();
clone->Append(origin_vn);
return Locate(clone);
}
ExtCommunityPtr ExtCommunityDB::ReplaceTunnelEncapsulationAndLocate(
const ExtCommunity *src,
const ExtCommunity::ExtCommunityList &tunnel_encaps) {
ExtCommunity *clone;
if (src) {
clone = new ExtCommunity(*src);
} else {
clone = new ExtCommunity(this);
}
clone->RemoveTunnelEncapsulation();
clone->Append(tunnel_encaps);
return Locate(clone);
}