+#include "extract.h"
+
+#include "ospf.h"
+
+#define OSPF_TYPE_HELLO 1 /* Hello */
+#define OSPF_TYPE_DD 2 /* Database Description */
+#define OSPF_TYPE_LS_REQ 3 /* Link State Request */
+#define OSPF_TYPE_LS_UPDATE 4 /* Link State Update */
+#define OSPF_TYPE_LS_ACK 5 /* Link State Ack */
+
+/* Options *_options */
+#define OSPF6_OPTION_V6 0x01 /* V6 bit: A bit for peeping tom */
+#define OSPF6_OPTION_E 0x02 /* E bit: External routes advertised */
+#define OSPF6_OPTION_MC 0x04 /* MC bit: Multicast capable */
+#define OSPF6_OPTION_N 0x08 /* N bit: For type-7 LSA */
+#define OSPF6_OPTION_R 0x10 /* R bit: Router bit */
+#define OSPF6_OPTION_DC 0x20 /* DC bit: Demand circuits */
+/* The field is actually 24-bit (RFC5340 Section A.2). */
+#define OSPF6_OPTION_AF 0x0100 /* AF bit: Multiple address families */
+#define OSPF6_OPTION_L 0x0200 /* L bit: Link-local signaling (LLS) */
+#define OSPF6_OPTION_AT 0x0400 /* AT bit: Authentication trailer */
+
+
+/* db_flags */
+#define OSPF6_DB_INIT 0x04 /* */
+#define OSPF6_DB_MORE 0x02
+#define OSPF6_DB_MASTER 0x01
+#define OSPF6_DB_M6 0x10 /* IPv6 MTU */
+
+/* ls_type */
+#define LS_TYPE_ROUTER 1 /* router link */
+#define LS_TYPE_NETWORK 2 /* network link */
+#define LS_TYPE_INTER_AP 3 /* Inter-Area-Prefix */
+#define LS_TYPE_INTER_AR 4 /* Inter-Area-Router */
+#define LS_TYPE_ASE 5 /* ASE */
+#define LS_TYPE_GROUP 6 /* Group membership */
+#define LS_TYPE_NSSA 7 /* NSSA */
+#define LS_TYPE_LINK 8 /* Link LSA */
+#define LS_TYPE_INTRA_AP 9 /* Intra-Area-Prefix */
+#define LS_TYPE_INTRA_ATE 10 /* Intra-Area-TE */
+#define LS_TYPE_GRACE 11 /* Grace LSA */
+#define LS_TYPE_RI 12 /* Router information */
+#define LS_TYPE_INTER_ASTE 13 /* Inter-AS-TE */
+#define LS_TYPE_L1VPN 14 /* L1VPN */
+#define LS_TYPE_MASK 0x1fff
+
+#define LS_SCOPE_LINKLOCAL 0x0000
+#define LS_SCOPE_AREA 0x2000
+#define LS_SCOPE_AS 0x4000
+#define LS_SCOPE_MASK 0x6000
+#define LS_SCOPE_U 0x8000
+
+/* rla_link.link_type */
+#define RLA_TYPE_ROUTER 1 /* point-to-point to another router */
+#define RLA_TYPE_TRANSIT 2 /* connection to transit network */
+#define RLA_TYPE_VIRTUAL 4 /* virtual link */
+
+/* rla_flags */
+#define RLA_FLAG_B 0x01
+#define RLA_FLAG_E 0x02
+#define RLA_FLAG_V 0x04
+#define RLA_FLAG_W 0x08
+#define RLA_FLAG_Nt 0x10
+
+/* lsa_prefix options */
+#define LSA_PREFIX_OPT_NU 0x01
+#define LSA_PREFIX_OPT_LA 0x02
+#define LSA_PREFIX_OPT_MC 0x04
+#define LSA_PREFIX_OPT_P 0x08
+#define LSA_PREFIX_OPT_DN 0x10
+#define LSA_PREFIX_OPT_N 0x20
+
+/* sla_tosmetric breakdown */
+#define SLA_MASK_TOS 0x7f000000
+#define SLA_MASK_METRIC 0x00ffffff
+#define SLA_SHIFT_TOS 24
+
+/* asla_metric */
+#define ASLA_FLAG_FWDADDR 0x02000000
+#define ASLA_FLAG_ROUTETAG 0x01000000
+#define ASLA_MASK_METRIC 0x00ffffff
+
+/* RFC6506 Section 4.1 */
+#define OSPF6_AT_HDRLEN 16U
+#define OSPF6_AUTH_TYPE_HMAC 0x0001
+
+typedef nd_uint32_t rtrid_t;
+
+/* link state advertisement header */
+struct lsa6_hdr {
+ nd_uint16_t ls_age;
+ nd_uint16_t ls_type;
+ rtrid_t ls_stateid;
+ rtrid_t ls_router;
+ nd_uint32_t ls_seq;
+ nd_uint16_t ls_chksum;
+ nd_uint16_t ls_length;
+};
projects / tcpdump / blobdiff