/
bgp_attr.h
951 lines (823 loc) · 32.3 KB
/
bgp_attr.h
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/*
* Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
*/
#ifndef SRC_BGP_BGP_ATTR_H_
#define SRC_BGP_BGP_ATTR_H_
#include <boost/intrusive_ptr.hpp>
#include <tbb/atomic.h>
#include <set>
#include <string>
#include <vector>
#include "base/label_block.h"
#include "base/parse_object.h"
#include "base/util.h"
#include "bgp/bgp_aspath.h"
#include "bgp/bgp_attr_base.h"
#include "bgp/bgp_origin_vn_path.h"
#include "bgp/community.h"
#include "net/address.h"
#include "net/esi.h"
#include "net/mac_address.h"
#include "net/rd.h"
class BgpAttr;
class BgpAttrDB;
class BgpOListDB;
class BgpServer;
class ClusterListDB;
class EdgeDiscoveryDB;
class EdgeForwardingDB;
class PmsiTunnelDB;
// BGP UPDATE attributes: as-path, community, ext-community, next-hop,
// cluster-list, ...
// all information in the UPDATE except: NLRI (prefix) and label.
struct BgpAttrOrigin : public BgpAttribute {
static const int kSize = 1;
static const uint8_t kFlags = Transitive;
BgpAttrOrigin() : BgpAttribute(Origin, kFlags), origin(IGP) { }
explicit BgpAttrOrigin(const BgpAttribute &rhs)
: BgpAttribute(rhs), origin(IGP) {
}
explicit BgpAttrOrigin(int origin) :
BgpAttribute(Origin, kFlags), origin(origin) { }
enum OriginType {
IGP = 0,
EGP = 1,
INCOMPLETE = 2
};
int origin;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
struct BgpAttrNextHop : public BgpAttribute {
static const int kSize = 4;
static const uint8_t kFlags = Transitive;
BgpAttrNextHop() : BgpAttribute(NextHop, kFlags), nexthop(0) {}
explicit BgpAttrNextHop(const BgpAttribute &rhs)
: BgpAttribute(rhs), nexthop(0) {
}
explicit BgpAttrNextHop(uint32_t nexthop)
: BgpAttribute(NextHop, kFlags), nexthop(nexthop) {}
explicit BgpAttrNextHop(Ip4Address v4_nexthop)
: BgpAttribute(NextHop, kFlags), nexthop(v4_nexthop.to_ulong()) {}
explicit BgpAttrNextHop(Ip6Address v6_nexthop)
: BgpAttribute(NextHop, kFlags), nexthop(0), v6_nexthop(v6_nexthop) {}
explicit BgpAttrNextHop(IpAddress ip_nexthop)
: BgpAttribute(NextHop, kFlags), nexthop(0) {
if (ip_nexthop.is_v4()) {
nexthop = ip_nexthop.to_v4().to_ulong();
} else if (ip_nexthop.is_v6()) {
v6_nexthop = ip_nexthop.to_v6();
}
}
uint32_t nexthop;
Ip6Address v6_nexthop;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
struct BgpAttrMultiExitDisc : public BgpAttribute {
static const int kSize = 4;
static const uint8_t kFlags = Optional;
BgpAttrMultiExitDisc() : BgpAttribute(MultiExitDisc, kFlags), med(0) {}
explicit BgpAttrMultiExitDisc(const BgpAttribute &rhs)
: BgpAttribute(rhs), med(0) {
}
explicit BgpAttrMultiExitDisc(uint32_t med) :
BgpAttribute(MultiExitDisc, kFlags), med(med) {}
uint32_t med;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
struct BgpAttrLocalPref : public BgpAttribute {
static const int kDefault = 100;
static const int kSize = 4;
static const uint8_t kFlags = Transitive;
BgpAttrLocalPref() : BgpAttribute(LocalPref, kFlags), local_pref(0) {}
explicit BgpAttrLocalPref(const BgpAttribute &rhs)
: BgpAttribute(rhs), local_pref(0) {
}
explicit BgpAttrLocalPref(uint32_t local_pref)
: BgpAttribute(LocalPref, kFlags), local_pref(local_pref) {
}
uint32_t local_pref;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
struct BgpAttrAtomicAggregate : public BgpAttribute {
static const int kSize = 0;
static const uint8_t kFlags = Transitive;
BgpAttrAtomicAggregate() : BgpAttribute(AtomicAggregate, kFlags) {}
explicit BgpAttrAtomicAggregate(const BgpAttribute &rhs)
: BgpAttribute(rhs) {
}
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
struct BgpAttrAggregator : public BgpAttribute {
static const int kSize = 6;
static const uint8_t kFlags = Optional|Transitive;
BgpAttrAggregator()
: BgpAttribute(Aggregator, kFlags), as_num(0), address(0) {
}
explicit BgpAttrAggregator(const BgpAttribute &rhs)
: BgpAttribute(rhs), as_num(0), address(0) {
}
explicit BgpAttrAggregator(uint32_t as_num, uint32_t address) :
BgpAttribute(Aggregator, kFlags), as_num(as_num), address(address) {}
as_t as_num;
uint32_t address;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
struct BgpAttrOriginatorId : public BgpAttribute {
static const int kSize = 4;
static const uint8_t kFlags = Optional;
BgpAttrOriginatorId()
: BgpAttribute(OriginatorId, kFlags), originator_id(0) {
}
explicit BgpAttrOriginatorId(const BgpAttribute &rhs)
: BgpAttribute(rhs), originator_id(0) {
}
explicit BgpAttrOriginatorId(uint32_t originator_id)
: BgpAttribute(OriginatorId, kFlags), originator_id(originator_id) {}
uint32_t originator_id;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
struct ClusterListSpec : public BgpAttribute {
static const int kSize = -1;
static const uint8_t kFlags = Optional;
ClusterListSpec() : BgpAttribute(ClusterList, kFlags) { }
explicit ClusterListSpec(const BgpAttribute &rhs) : BgpAttribute(rhs) { }
explicit ClusterListSpec(const ClusterListSpec &rhs)
: BgpAttribute(BgpAttribute::ClusterList, kFlags) {
cluster_list = rhs.cluster_list;
}
virtual int CompareTo(const BgpAttribute &rhs) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
std::vector<uint32_t> cluster_list;
};
class ClusterList {
public:
ClusterList(ClusterListDB *cluster_list_db, const ClusterListSpec &spec);
~ClusterList() { }
void Remove();
int CompareTo(const ClusterList &rhs) const {
return spec_.CompareTo(rhs.cluster_list());
}
const ClusterListSpec &cluster_list() const { return spec_; }
size_t size() const { return spec_.cluster_list.size(); }
friend std::size_t hash_value(const ClusterList &cluster_list) {
size_t hash = 0;
return hash;
}
private:
friend int intrusive_ptr_add_ref(const ClusterList *ccluster_list);
friend int intrusive_ptr_del_ref(const ClusterList *ccluster_list);
friend void intrusive_ptr_release(const ClusterList *ccluster_list);
friend class ClusterListDB;
mutable tbb::atomic<int> refcount_;
ClusterListDB *cluster_list_db_;
ClusterListSpec spec_;
};
inline int intrusive_ptr_add_ref(const ClusterList *ccluster_list) {
return ccluster_list->refcount_.fetch_and_increment();
}
inline int intrusive_ptr_del_ref(const ClusterList *ccluster_list) {
return ccluster_list->refcount_.fetch_and_decrement();
}
inline void intrusive_ptr_release(const ClusterList *ccluster_list) {
int prev = ccluster_list->refcount_.fetch_and_decrement();
if (prev == 1) {
ClusterList *cluster_list = const_cast<ClusterList *>(ccluster_list);
cluster_list->Remove();
assert(cluster_list->refcount_ == 0);
delete cluster_list;
}
}
typedef boost::intrusive_ptr<ClusterList> ClusterListPtr;
struct ClusterListCompare {
bool operator()(const ClusterList *lhs, const ClusterList *rhs) {
return lhs->CompareTo(*rhs) < 0;
}
};
class ClusterListDB : public BgpPathAttributeDB<ClusterList, ClusterListPtr,
ClusterListSpec,
ClusterListCompare,
ClusterListDB> {
public:
explicit ClusterListDB(BgpServer *server);
};
struct BgpMpNlri : public BgpAttribute {
static const int kSize = -1;
static const uint8_t kFlags = Optional;
// Always using extended length for MP NLRI
BgpMpNlri() : BgpAttribute(0, ExtendedLength|kFlags), afi(0), safi(0) {}
explicit BgpMpNlri(BgpAttribute::Code code) :
BgpAttribute(code, ExtendedLength|kFlags), afi(0), safi(0) {}
explicit BgpMpNlri(BgpAttribute::Code code, u_int16_t afi, u_int8_t safi,
std::vector<uint8_t> nh) :
BgpAttribute(code, ExtendedLength|kFlags), afi(afi), safi(safi),
nexthop(nh) {}
explicit BgpMpNlri(BgpAttribute::Code code, u_int16_t afi, u_int8_t safi) :
BgpAttribute(code, ExtendedLength|kFlags), afi(afi), safi(safi) {
nexthop.clear();
}
explicit BgpMpNlri(const BgpAttribute &rhs)
: BgpAttribute(rhs), afi(0), safi(0) {
}
~BgpMpNlri() {
STLDeleteValues(&nlri);
}
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual size_t EncodeLength() const;
uint16_t afi;
uint8_t safi;
std::vector<uint8_t> nexthop;
std::vector<BgpProtoPrefix *> nlri;
};
struct PmsiTunnelSpec : public BgpAttribute {
enum Flags {
LeafInfoRequired = 1 << 0,
AssistedReplicationType = 3 << 3,
EdgeReplicationSupported = 1 << 7
};
enum ARType {
RegularNVE = 0 << 3,
ARReplicator = 1 << 3,
ARLeaf = 2 << 3
};
enum Type {
NoTunnelInfo = 0,
RsvpP2mpLsp = 1,
LdpP2mpLsp = 2,
PimSsmTree = 3,
PimSmTree = 4,
BidirPimTree = 5,
IngressReplication = 6,
MldpMp2mpLsp = 7,
AssistedReplicationContrail = 252
};
static const int kSize = -1;
static const uint8_t kFlags = Optional | Transitive;
PmsiTunnelSpec();
explicit PmsiTunnelSpec(const BgpAttribute &rhs);
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
uint32_t GetLabel(bool is_vni = false) const;
void SetLabel(uint32_t label, bool is_vni = false);
Ip4Address GetIdentifier() const;
void SetIdentifier(Ip4Address identifier);
std::string GetTunnelTypeString() const;
std::string GetTunnelArTypeString() const;
std::vector<std::string> GetTunnelFlagsStrings() const;
uint8_t tunnel_flags;
uint8_t tunnel_type;
uint32_t label;
std::vector<uint8_t> identifier;
};
class PmsiTunnel {
public:
PmsiTunnel(PmsiTunnelDB *pmsi_tunnel_db, const PmsiTunnelSpec &pmsi_spec);
virtual ~PmsiTunnel() { }
virtual void Remove();
int CompareTo(const PmsiTunnel &rhs) const {
return pmsi_spec_.CompareTo(rhs.pmsi_tunnel());
}
const PmsiTunnelSpec &pmsi_tunnel() const { return pmsi_spec_; }
uint32_t GetLabel(bool is_vni = false) const {
return (is_vni ? label_ : label_ >> 4);
}
friend std::size_t hash_value(const PmsiTunnel &pmsi_tunnel) {
size_t hash = 0;
boost::hash_combine(hash, pmsi_tunnel.pmsi_tunnel().ToString());
return hash;
}
const uint8_t tunnel_flags() const { return tunnel_flags_; }
const uint8_t tunnel_type() const { return tunnel_type_; }
const Ip4Address identifier() const { return identifier_; }
const uint32_t label() const { return label_; }
private:
friend int intrusive_ptr_add_ref(const PmsiTunnel *cpmsi_tunnel);
friend int intrusive_ptr_del_ref(const PmsiTunnel *cpmsi_tunnel);
friend void intrusive_ptr_release(const PmsiTunnel *cpmsi_tunnel);
friend class PmsiTunnelDB;
uint8_t tunnel_flags_;
uint8_t tunnel_type_;
Ip4Address identifier_;
uint32_t label_;
mutable tbb::atomic<int> refcount_;
PmsiTunnelDB *pmsi_tunnel_db_;
PmsiTunnelSpec pmsi_spec_;
};
inline int intrusive_ptr_add_ref(const PmsiTunnel *cpmsi_tunnel) {
return cpmsi_tunnel->refcount_.fetch_and_increment();
}
inline int intrusive_ptr_del_ref(const PmsiTunnel *cpmsi_tunnel) {
return cpmsi_tunnel->refcount_.fetch_and_decrement();
}
inline void intrusive_ptr_release(const PmsiTunnel *cpmsi_tunnel) {
int prev = cpmsi_tunnel->refcount_.fetch_and_decrement();
if (prev == 1) {
PmsiTunnel *pmsi_tunnel = const_cast<PmsiTunnel *>(cpmsi_tunnel);
pmsi_tunnel->Remove();
assert(pmsi_tunnel->refcount_ == 0);
delete pmsi_tunnel;
}
}
typedef boost::intrusive_ptr<PmsiTunnel> PmsiTunnelPtr;
struct PmsiTunnelCompare {
bool operator()(const PmsiTunnel *lhs, const PmsiTunnel *rhs) {
return lhs->CompareTo(*rhs) < 0;
}
};
class PmsiTunnelDB : public BgpPathAttributeDB<PmsiTunnel, PmsiTunnelPtr,
PmsiTunnelSpec,
PmsiTunnelCompare,
PmsiTunnelDB> {
public:
explicit PmsiTunnelDB(BgpServer *server);
};
struct EdgeDiscoverySpec : public BgpAttribute {
static const int kSize = -1;
static const uint8_t kFlags = Optional | Transitive;
EdgeDiscoverySpec();
explicit EdgeDiscoverySpec(const BgpAttribute &rhs);
explicit EdgeDiscoverySpec(const EdgeDiscoverySpec &rhs);
~EdgeDiscoverySpec();
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
virtual size_t EncodeLength() const;
struct Edge : public ParseObject {
Ip4Address GetIp4Address() const;
void SetIp4Address(Ip4Address addr);
void GetLabels(uint32_t *first_label, uint32_t *last_label) const;
void SetLabels(uint32_t first_label, uint32_t last_label);
std::vector<uint8_t> address;
std::vector<uint32_t> labels;
};
typedef std::vector<Edge *> EdgeList;
EdgeList edge_list;
};
class EdgeDiscovery {
public:
EdgeDiscovery(EdgeDiscoveryDB *edge_discovery_db,
const EdgeDiscoverySpec &edspec);
virtual ~EdgeDiscovery();
virtual void Remove();
int CompareTo(const EdgeDiscovery &rhs) const;
const EdgeDiscoverySpec &edge_discovery() const { return edspec_; }
friend std::size_t hash_value(const EdgeDiscovery &edge_discovery) {
size_t hash = 0;
boost::hash_combine(hash, edge_discovery.edge_discovery().ToString());
return hash;
}
struct Edge {
explicit Edge(const EdgeDiscoverySpec::Edge *edge_spec);
Ip4Address address;
LabelBlockPtr label_block;
bool operator<(const Edge &rhs) const;
};
typedef std::vector<Edge *> EdgeList;
struct EdgeCompare {
bool operator()(const Edge *lhs, const Edge *rhs) {
BOOL_KEY_COMPARE(*lhs, *rhs);
return false;
}
};
EdgeList edge_list;
private:
friend int intrusive_ptr_add_ref(const EdgeDiscovery *ediscovery);
friend int intrusive_ptr_del_ref(const EdgeDiscovery *ediscovery);
friend void intrusive_ptr_release(const EdgeDiscovery *ediscovery);
friend class EdgeDiscoveryDB;
mutable tbb::atomic<int> refcount_;
EdgeDiscoveryDB *edge_discovery_db_;
EdgeDiscoverySpec edspec_;
};
inline int intrusive_ptr_add_ref(const EdgeDiscovery *cediscovery) {
return cediscovery->refcount_.fetch_and_increment();
}
inline int intrusive_ptr_del_ref(const EdgeDiscovery *cediscovery) {
return cediscovery->refcount_.fetch_and_decrement();
}
inline void intrusive_ptr_release(const EdgeDiscovery *cediscovery) {
int prev = cediscovery->refcount_.fetch_and_decrement();
if (prev == 1) {
EdgeDiscovery *ediscovery = const_cast<EdgeDiscovery *>(cediscovery);
ediscovery->Remove();
assert(ediscovery->refcount_ == 0);
delete ediscovery;
}
}
typedef boost::intrusive_ptr<EdgeDiscovery> EdgeDiscoveryPtr;
struct EdgeDiscoveryCompare {
bool operator()(const EdgeDiscovery *lhs, const EdgeDiscovery *rhs) {
return lhs->CompareTo(*rhs) < 0;
}
};
class EdgeDiscoveryDB : public BgpPathAttributeDB<EdgeDiscovery,
EdgeDiscoveryPtr,
EdgeDiscoverySpec,
EdgeDiscoveryCompare,
EdgeDiscoveryDB> {
public:
explicit EdgeDiscoveryDB(BgpServer *server);
};
struct EdgeForwardingSpec : public BgpAttribute {
static const int kSize = -1;
static const uint8_t kFlags = Optional | Transitive;
EdgeForwardingSpec();
explicit EdgeForwardingSpec(const BgpAttribute &rhs);
explicit EdgeForwardingSpec(const EdgeForwardingSpec &rhs);
~EdgeForwardingSpec();
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
virtual size_t EncodeLength() const;
struct Edge : public ParseObject {
Ip4Address GetInboundIp4Address() const;
Ip4Address GetOutboundIp4Address() const;
void SetInboundIp4Address(Ip4Address addr);
void SetOutboundIp4Address(Ip4Address addr);
int address_len;
std::vector<uint8_t> inbound_address, outbound_address;
uint32_t inbound_label, outbound_label;
};
typedef std::vector<Edge *> EdgeList;
EdgeList edge_list;
};
class EdgeForwarding {
public:
EdgeForwarding(EdgeForwardingDB *edge_forwarding_db,
const EdgeForwardingSpec &efspec);
virtual ~EdgeForwarding();
virtual void Remove();
int CompareTo(const EdgeForwarding &rhs) const;
const EdgeForwardingSpec &edge_forwarding() const { return efspec_; }
friend std::size_t hash_value(const EdgeForwarding &edge_forwarding) {
size_t hash = 0;
boost::hash_combine(hash, edge_forwarding.edge_forwarding().ToString());
return hash;
}
struct Edge {
explicit Edge(const EdgeForwardingSpec::Edge *edge_spec);
bool operator<(const Edge &rhs) const;
Ip4Address inbound_address, outbound_address;
uint32_t inbound_label, outbound_label;
};
typedef std::vector<Edge *> EdgeList;
struct EdgeCompare {
bool operator()(const Edge *lhs, const Edge *rhs) {
BOOL_KEY_COMPARE(*lhs, *rhs);
return false;
}
};
EdgeList edge_list;
private:
friend int intrusive_ptr_add_ref(const EdgeForwarding *ceforwarding);
friend int intrusive_ptr_del_ref(const EdgeForwarding *ceforwarding);
friend void intrusive_ptr_release(const EdgeForwarding *ceforwarding);
friend class EdgeForwardingDB;
mutable tbb::atomic<int> refcount_;
EdgeForwardingDB *edge_forwarding_db_;
EdgeForwardingSpec efspec_;
};
inline int intrusive_ptr_add_ref(const EdgeForwarding *ceforwarding) {
return ceforwarding->refcount_.fetch_and_increment();
}
inline int intrusive_ptr_del_ref(const EdgeForwarding *ceforwarding) {
return ceforwarding->refcount_.fetch_and_decrement();
}
inline void intrusive_ptr_release(const EdgeForwarding *ceforwarding) {
int prev = ceforwarding->refcount_.fetch_and_decrement();
if (prev == 1) {
EdgeForwarding *eforwarding =
const_cast<EdgeForwarding *>(ceforwarding);
eforwarding->Remove();
assert(eforwarding->refcount_ == 0);
delete eforwarding;
}
}
typedef boost::intrusive_ptr<EdgeForwarding> EdgeForwardingPtr;
struct EdgeForwardingCompare {
bool operator()(const EdgeForwarding *lhs, const EdgeForwarding *rhs) {
return lhs->CompareTo(*rhs) < 0;
}
};
class EdgeForwardingDB : public BgpPathAttributeDB<EdgeForwarding,
EdgeForwardingPtr,
EdgeForwardingSpec,
EdgeForwardingCompare,
EdgeForwardingDB> {
public:
explicit EdgeForwardingDB(BgpServer *server);
};
struct BgpAttrLabelBlock : public BgpAttribute {
static const int kSize = 0;
BgpAttrLabelBlock() : BgpAttribute(0, BgpAttribute::LabelBlock, 0) {}
explicit BgpAttrLabelBlock(const BgpAttribute &rhs) : BgpAttribute(rhs) {}
explicit BgpAttrLabelBlock(LabelBlockPtr label_block)
: BgpAttribute(0, BgpAttribute::LabelBlock, 0),
label_block(label_block) {
}
LabelBlockPtr label_block;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
class BgpOListElem {
public:
BgpOListElem(Ip4Address address, uint32_t label,
std::vector<std::string> encap = std::vector<std::string>())
: address(address), label(label), encap(encap) {
}
bool operator<(const BgpOListElem &rhs) const;
Ip4Address address;
uint32_t label;
std::vector<std::string> encap;
};
struct BgpOListElemCompare {
bool operator()(const BgpOListElem *lhs, const BgpOListElem *rhs) {
BOOL_KEY_COMPARE(*lhs, *rhs);
return false;
}
};
struct BgpOListSpec : public BgpAttribute {
static const int kSize = 0;
BgpOListSpec() : BgpAttribute(0, BgpAttribute::OList, 0) {}
explicit BgpOListSpec(uint8_t subcode) : BgpAttribute(0, subcode, 0) {}
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
typedef std::vector<BgpOListElem> Elements;
Elements elements;
};
class BgpOList {
public:
BgpOList(BgpOListDB *olist_db, const BgpOListSpec &olist_spec);
virtual ~BgpOList();
virtual void Remove();
int CompareTo(const BgpOList &rhs) const;
const BgpOListSpec &olist() const { return olist_spec_; }
friend std::size_t hash_value(const BgpOList &olist) {
size_t hash = 0;
boost::hash_combine(hash, olist.olist().ToString());
return hash;
}
typedef std::vector<BgpOListElem *> Elements;
const Elements &elements() const { return elements_; }
private:
friend int intrusive_ptr_add_ref(const BgpOList *colist);
friend int intrusive_ptr_del_ref(const BgpOList *colist);
friend void intrusive_ptr_release(const BgpOList *colist);
friend class BgpOListDB;
Elements elements_;
mutable tbb::atomic<int> refcount_;
BgpOListDB *olist_db_;
BgpOListSpec olist_spec_;
};
inline int intrusive_ptr_add_ref(const BgpOList *colist) {
return colist->refcount_.fetch_and_increment();
}
inline int intrusive_ptr_del_ref(const BgpOList *colist) {
return colist->refcount_.fetch_and_decrement();
}
inline void intrusive_ptr_release(const BgpOList *colist) {
int prev = colist->refcount_.fetch_and_decrement();
if (prev == 1) {
BgpOList *olist = const_cast<BgpOList *>(colist);
olist->Remove();
assert(olist->refcount_ == 0);
delete olist;
}
}
typedef boost::intrusive_ptr<BgpOList> BgpOListPtr;
struct BgpOListCompare {
bool operator()(const BgpOList *lhs, const BgpOList *rhs) {
return lhs->CompareTo(*rhs) < 0;
}
};
class BgpOListDB : public BgpPathAttributeDB<BgpOList,
BgpOListPtr,
BgpOListSpec,
BgpOListCompare,
BgpOListDB> {
public:
explicit BgpOListDB(BgpServer *server);
};
struct BgpAttrUnknown : public BgpAttribute {
BgpAttrUnknown() : BgpAttribute() {}
explicit BgpAttrUnknown(const BgpAttribute &rhs) : BgpAttribute(rhs) {}
std::vector<uint8_t> value;
};
struct BgpAttrSourceRd : public BgpAttribute {
BgpAttrSourceRd() : BgpAttribute(0, SourceRd, 0) {}
explicit BgpAttrSourceRd(const BgpAttribute &rhs) : BgpAttribute(rhs) {}
explicit BgpAttrSourceRd(const RouteDistinguisher &source_rd)
: BgpAttribute(0, SourceRd, 0), source_rd(source_rd) {
}
RouteDistinguisher source_rd;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
struct BgpAttrEsi : public BgpAttribute {
BgpAttrEsi() : BgpAttribute(0, Esi, 0) {}
explicit BgpAttrEsi(const BgpAttribute &rhs) : BgpAttribute(rhs) {}
explicit BgpAttrEsi(const EthernetSegmentId &esi)
: BgpAttribute(0, Esi, 0), esi(esi) {
}
EthernetSegmentId esi;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
struct BgpAttrParams : public BgpAttribute {
enum Flags {
TestFlag = 1 << 0
};
BgpAttrParams() : BgpAttribute(0, Params, 0), params(0) {}
explicit BgpAttrParams(const BgpAttribute &rhs)
: BgpAttribute(rhs), params(0) {
}
explicit BgpAttrParams(uint64_t params) :
BgpAttribute(0, Params, 0), params(params) {}
uint64_t params;
virtual int CompareTo(const BgpAttribute &rhs_attr) const;
virtual void ToCanonical(BgpAttr *attr);
virtual std::string ToString() const;
};
typedef std::vector<BgpAttribute *> BgpAttrSpec;
// Canonicalized BGP attribute
class BgpAttr {
public:
BgpAttr();
explicit BgpAttr(BgpAttrDB *attr_db);
explicit BgpAttr(const BgpAttr &rhs);
BgpAttr(BgpAttrDB *attr_db, const BgpAttrSpec &spec);
virtual ~BgpAttr() { }
virtual void Remove();
int CompareTo(const BgpAttr &rhs) const;
void set_origin(BgpAttrOrigin::OriginType org) { origin_ = org; }
void set_nexthop(IpAddress nexthop) { nexthop_ = nexthop; }
void set_med(uint32_t med) { med_ = med; }
void set_local_pref(uint32_t local_pref) { local_pref_ = local_pref; }
void set_atomic_aggregate(bool ae) { atomic_aggregate_ = ae; }
void set_aggregator(as_t as_num, IpAddress address) {
aggregator_as_num_ = as_num;
aggregator_address_ = address;
}
void set_originator_id(Ip4Address originator_id) {
originator_id_ = originator_id;
}
void set_source_rd(const RouteDistinguisher &source_rd) {
source_rd_ = source_rd;
}
void set_esi(const EthernetSegmentId &esi) { esi_ = esi; }
void set_params(uint64_t params) { params_ = params; }
void set_as_path(AsPathPtr aspath);
void set_as_path(const AsPathSpec *spec);
void set_cluster_list(const ClusterListSpec *spec);
void set_community(CommunityPtr comm);
void set_community(const CommunitySpec *comm);
void set_ext_community(ExtCommunityPtr extcomm);
void set_ext_community(const ExtCommunitySpec *extcomm);
void set_origin_vn_path(OriginVnPathPtr ovnpath);
void set_origin_vn_path(const OriginVnPathSpec *spec);
void set_pmsi_tunnel(const PmsiTunnelSpec *pmsi_spec);
void set_edge_discovery(const EdgeDiscoverySpec *edspec);
void set_edge_forwarding(const EdgeForwardingSpec *efspec);
void set_label_block(LabelBlockPtr label_block);
void set_olist(const BgpOListSpec *olist_spec);
void set_leaf_olist(const BgpOListSpec *leaf_olist_spec);
friend std::size_t hash_value(BgpAttr const &attr);
BgpAttrOrigin::OriginType origin() const { return origin_; }
const IpAddress &nexthop() const { return nexthop_; }
Address::Family nexthop_family() const;
uint32_t med() const { return med_; }
uint32_t local_pref() const { return local_pref_; }
bool atomic_aggregate() const { return atomic_aggregate_; }
as_t aggregator_as_num() const { return aggregator_as_num_; }
as_t neighbor_as() const;
const IpAddress &aggregator_adderess() const { return aggregator_address_; }
const Ip4Address &originator_id() const { return originator_id_; }
const RouteDistinguisher &source_rd() const { return source_rd_; }
const EthernetSegmentId &esi() const { return esi_; }
uint64_t params() const { return params_; }
const AsPath *as_path() const { return as_path_.get(); }
int as_path_count() const { return as_path_ ? as_path_->AsCount() : 0; }
const ClusterList *cluster_list() const { return cluster_list_.get(); }
size_t cluster_list_length() const {
return cluster_list_ ? cluster_list_->size() : 0;
}
const Community *community() const { return community_.get(); }
const ExtCommunity *ext_community() const { return ext_community_.get(); }
const OriginVnPath *origin_vn_path() const { return origin_vn_path_.get(); }
const PmsiTunnel *pmsi_tunnel() const { return pmsi_tunnel_.get(); }
const EdgeDiscovery *edge_discovery() const {
return edge_discovery_.get();
}
const EdgeForwarding *edge_forwarding() const {
return edge_forwarding_.get();
}
LabelBlockPtr label_block() const { return label_block_; }
BgpOListPtr olist() const { return olist_; }
BgpOListPtr leaf_olist() const { return leaf_olist_; }
BgpAttrDB *attr_db() const { return attr_db_; }
uint32_t sequence_number() const;
MacAddress mac_address() const;
private:
friend class BgpAttrDB;
friend class BgpAttrTest;
friend int intrusive_ptr_add_ref(const BgpAttr *cattrp);
friend int intrusive_ptr_del_ref(const BgpAttr *cattrp);
friend void intrusive_ptr_release(const BgpAttr *cattrp);
mutable tbb::atomic<int> refcount_;
BgpAttrDB *attr_db_;
BgpAttrOrigin::OriginType origin_;
IpAddress nexthop_;
uint32_t med_;
uint32_t local_pref_;
bool atomic_aggregate_;
as_t aggregator_as_num_;
IpAddress aggregator_address_;
Ip4Address originator_id_;
RouteDistinguisher source_rd_;
EthernetSegmentId esi_;
uint64_t params_;
AsPathPtr as_path_;
ClusterListPtr cluster_list_;
CommunityPtr community_;
ExtCommunityPtr ext_community_;
OriginVnPathPtr origin_vn_path_;
PmsiTunnelPtr pmsi_tunnel_;
EdgeDiscoveryPtr edge_discovery_;
EdgeForwardingPtr edge_forwarding_;
LabelBlockPtr label_block_;
BgpOListPtr olist_;
BgpOListPtr leaf_olist_;
};
inline int intrusive_ptr_add_ref(const BgpAttr *cattrp) {
return cattrp->refcount_.fetch_and_increment();
}
inline int intrusive_ptr_del_ref(const BgpAttr *cattrp) {
return cattrp->refcount_.fetch_and_decrement();
}
inline void intrusive_ptr_release(const BgpAttr *cattrp) {
int prev = cattrp->refcount_.fetch_and_decrement();
if (prev == 1) {
BgpAttr *attrp = const_cast<BgpAttr *>(cattrp);
attrp->Remove();
assert(attrp->refcount_ == 0);
delete attrp;
}
}
typedef boost::intrusive_ptr<const BgpAttr> BgpAttrPtr;
struct BgpAttrCompare {
bool operator()(const BgpAttr *lhs, const BgpAttr *rhs) {
return lhs->CompareTo(*rhs) < 0;
}
};
class BgpAttrDB : public BgpPathAttributeDB<BgpAttr, BgpAttrPtr, BgpAttrSpec,
BgpAttrCompare, BgpAttrDB> {
public:
explicit BgpAttrDB(BgpServer *server);
BgpAttrPtr ReplaceAsPathAndLocate(const BgpAttr *attr,
AsPathPtr aspath);
BgpAttrPtr ReplaceCommunityAndLocate(const BgpAttr *attr,
CommunityPtr community);
BgpAttrPtr ReplaceExtCommunityAndLocate(const BgpAttr *attr,
ExtCommunityPtr extcomm);
BgpAttrPtr ReplaceOriginVnPathAndLocate(const BgpAttr *attr,
OriginVnPathPtr ovnpath);
BgpAttrPtr ReplaceLocalPreferenceAndLocate(const BgpAttr *attr,
uint32_t local_pref);
BgpAttrPtr ReplaceOriginatorIdAndLocate(const BgpAttr *attr,
Ip4Address originator_id);
BgpAttrPtr ReplaceSourceRdAndLocate(const BgpAttr *attr,
const RouteDistinguisher &source_rd);
BgpAttrPtr ReplaceEsiAndLocate(const BgpAttr *attr,
const EthernetSegmentId &esi);
BgpAttrPtr ReplaceOListAndLocate(const BgpAttr *attr,
const BgpOListSpec *olist_spec);
BgpAttrPtr ReplaceLeafOListAndLocate(const BgpAttr *attr,
const BgpOListSpec *leaf_olist_spec);
BgpAttrPtr ReplacePmsiTunnelAndLocate(const BgpAttr *attr,
const PmsiTunnelSpec *pmsi_spec);
BgpAttrPtr ReplaceNexthopAndLocate(const BgpAttr *attr,
const IpAddress &addr);
BgpServer *server() { return server_; }
private:
BgpServer *server_;
};
#endif // SRC_BGP_BGP_ATTR_H_