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diff --git a/isisd/isis_tlv.h b/isisd/isis_tlv.h
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+/*
+ * IS-IS Rout(e)ing protocol - isis_tlv.h
+ * IS-IS TLV related routines
+ *
+ * Copyright (C) 2001,2002 Sampo Saaristo
+ * Tampere University of Technology
+ * Institute of Communications Engineering
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public Licenseas published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _ZEBRA_ISIS_TLV_H
+#define _ZEBRA_ISIS_TLV_H
+
+/*
+ * Structures found in TLV's.
+ * this header is fully complient with
+ * draft-ietf-isis-wg-tlv-codepoints-02.txt
+ 1. TLV Codepoints reserved
+ ____________________________________________________
+ Name Value IIH LSP SNP Status
+ ____________________________________________________
+
+ Area Addresses 1 y y n ISO 10589
+ IIS Neighbors 2 n y n ISO 10589
+ ES Neighbors 3 n y n ISO 10589
+ Part. DIS 4 n y n ISO 10589
+ Prefix Neighbors 5 n y n ISO 10589
+ IIS Neighbors 6 y n n ISO 10589
+ Padding 8 y n n ISO 10589
+ LSP Entries 9 n n y ISO 10589
+ Authentication 10 y y y ISO 10589
+ Opt. Checksum 12 y n y IETF-draft
+ LSPBufferSize 14 n y n ISO 10589 Rev 2 Draft
+ TE IIS Neigh. 22 n y n IETF-draft
+ DECnet Phase IV 42 y n n DEC (ancient)
+ IP Int. Reach 128 n y n RFC 1195
+ Prot. Supported 129 y y n RFC 1195
+ IP Ext. Address 130 n y n RFC 1195
+ IDRPI 131 n y y RFC 1195
+ IP Intf. Address 132 y y n RFC 1195
+ Illegal 133 n n n RFC 1195 (not used)
+ Router ID 134 n y n IETF-draft
+ TE IP. Reach 135 n y n IETF-draft
+ Dynamic Name 137 n y n RFC 2763
+ Nortel Proprietary 176 n y n
+ Nortel Proprietary 177 n y n
+ Restart TLV 211 y n n IETF-draft
+ MT-ISN 222 n y n IETF-draft
+ M-Topologies 229 y y n IETF-draft
+ IPv6 Intf. Addr. 232 y y n IETF-draft
+ MT IP. Reach 235 n y n IETF-draft
+ IPv6 IP. Reach 236 n y n IETF-draft
+ MT IPv6 IP. Reach 237 n y n IETF-draft
+ P2P Adjacency State 240 y n n IETF-draft
+
+ */
+
+#define AREA_ADDRESSES 1
+#define IS_NEIGHBOURS 2
+#define ES_NEIGHBOURS 3
+#define PARTITION_DESIG_LEVEL2_IS 4
+#define PREFIX_NEIGHBOURS 5
+#define LAN_NEIGHBOURS 6
+#define PADDING 8
+#define LSP_ENTRIES 9
+#define AUTH_INFO 10
+#define CHECKSUM 12
+#define TE_IS_NEIGHBOURS 22
+#define IPV4_INT_REACHABILITY 128
+#define IPV4_EXT_REACHABILITY 130
+#define PROTOCOLS_SUPPORTED 129
+#define IDRP_INFO 131
+#define IPV4_ADDR 132
+#define TE_ROUTER_ID 134
+#define TE_IPV4_REACHABILITY 135
+#define DYNAMIC_HOSTNAME 137
+#define IPV6_REACHABILITY 236
+#define IPV6_ADDR 232
+#define WAY3_HELLO 240
+
+#define IS_NEIGHBOURS_LEN (ISIS_SYS_ID_LEN + 5)
+#define LAN_NEIGHBOURS_LEN 6
+#define LSP_ENTRIES_LEN (10 + ISIS_SYS_ID_LEN) /* FIXME: should be entry */
+#define IPV4_REACH_LEN 12
+#define IPV6_REACH_LEN 22
+
+/* struct for neighbor */
+struct is_neigh{
+ struct metric metrics;
+ u_char neigh_id[ISIS_SYS_ID_LEN + 1];
+};
+
+/* struct for te is neighbor */
+struct te_is_neigh{
+ u_char neigh_id[ISIS_SYS_ID_LEN + 1];
+ u_char te_metric[3];
+ u_char sub_tlvs_length;
+};
+
+/* struct for es neighbors */
+struct es_neigh{
+ struct metric metrics;
+ /* approximate position of first, we use the
+ * length ((uchar*)metric-1) to know all */
+ u_char first_es_neigh[ISIS_SYS_ID_LEN];
+
+};
+
+struct partition_desig_level2_is{
+ struct list *isis_system_ids;
+};
+
+/* struct for lan neighbors */
+struct lan_neigh{
+ u_char LAN_addr[6];
+};
+
+/* struct for LSP entry */
+struct lsp_entry {
+ u_int16_t rem_lifetime;
+ u_char lsp_id[ISIS_SYS_ID_LEN + 2];
+ u_int32_t seq_num;
+ u_int16_t checksum;
+} __attribute__((packed));
+
+/* struct for checksum */
+struct checksum {
+ u_int16_t checksum;
+};
+
+/* ipv4 reachability */
+struct ipv4_reachability {
+ struct metric metrics;
+ struct in_addr prefix;
+ struct in_addr mask;
+};
+
+/* te router id */
+struct te_router_id {
+ struct in_addr id;
+};
+
+/* te ipv4 reachability */
+struct te_ipv4_reachability {
+ u_int32_t te_metric;
+ u_char control;
+ u_char prefix_start; /* since this is variable length by nature it only */
+}; /* points to an approximate location */
+
+
+
+struct idrp_info {
+ u_char len;
+ u_char *value;
+};
+
+#ifdef HAVE_IPV6
+struct ipv6_reachability {
+ u_int32_t metric;
+ u_char control_info;
+ u_char prefix_len;
+ u_char prefix[16];
+};
+#endif /* HAVE_IPV6 */
+
+/* bits in control_info */
+#define CTRL_INFO_DIRECTION 0x80
+#define DIRECTION_UP 0
+#define DIRECTION_DOWN 1
+#define CTRL_INFO_DISTRIBUTION 0x40
+#define DISTRIBUTION_INTERNAL 0
+#define DISTRIBUTION_EXTERNAL 1
+#define CTRL_INFO_SUBTLVS 0x20
+
+/*
+ * Pointer to each tlv type, filled by parse_tlvs()
+ */
+struct tlvs {
+ struct list *area_addrs;
+ struct list *is_neighs;
+ struct list *te_is_neighs;
+ struct list *es_neighs;
+ struct list *lsp_entries;
+ struct list *prefix_neighs;
+ struct list *lan_neighs;
+ struct checksum *checksum;
+ struct nlpids *nlpids;
+ struct list *ipv4_addrs;
+ struct list *ipv4_int_reachs;
+ struct list *ipv4_ext_reachs;
+ struct list *te_ipv4_reachs;
+ struct hostname *hostname;
+ struct te_router_id *router_id;
+#ifdef HAVE_IPV6
+ struct list *ipv6_addrs;
+ struct list *ipv6_reachs;
+#endif
+ struct isis_passwd auth_info;
+};
+
+/*
+ * Own definitions - used to bitmask found and expected
+ */
+
+#define TLVFLAG_AREA_ADDRS (1<<0)
+#define TLVFLAG_IS_NEIGHS (1<<1)
+#define TLVFLAG_ES_NEIGHS (1<<2)
+#define TLVFLAG_PARTITION_DESIG_LEVEL2_IS (1<<3)
+#define TLVFLAG_PREFIX_NEIGHS (1<<4)
+#define TLVFLAG_LAN_NEIGHS (1<<5)
+#define TLVFLAG_LSP_ENTRIES (1<<6)
+#define TLVFLAG_PADDING (1<<7)
+#define TLVFLAG_AUTH_INFO (1<<8)
+#define TLVFLAG_IPV4_INT_REACHABILITY (1<<9)
+#define TLVFLAG_NLPID (1<<10)
+#define TLVFLAG_IPV4_EXT_REACHABILITY (1<<11)
+#define TLVFLAG_IPV4_ADDR (1<<12)
+#define TLVFLAG_DYN_HOSTNAME (1<<13)
+#define TLVFLAG_IPV6_ADDR (1<<14)
+#define TLVFLAG_IPV6_REACHABILITY (1<<15)
+#define TLVFLAG_TE_IS_NEIGHS (1<<16)
+#define TLVFLAG_TE_IPV4_REACHABILITY (1<<17)
+#define TLVFLAG_3WAY_HELLO (1<<18)
+#define TLVFLAG_TE_ROUTER_ID (1<<19)
+#define TLVFLAG_CHECKSUM (1<<20)
+
+void init_tlvs (struct tlvs *tlvs, uint32_t expected);
+void free_tlvs (struct tlvs *tlvs);
+int parse_tlvs (char *areatag, u_char *stream, int size, u_int32_t *expected,
+ u_int32_t *found, struct tlvs *tlvs);
+void free_tlv (void *val);
+
+int tlv_add_area_addrs (struct list *area_addrs, struct stream *stream);
+int tlv_add_is_neighs (struct list *is_neighs, struct stream *stream);
+int tlv_add_lan_neighs (struct list *lan_neighs, struct stream *stream);
+int tlv_add_nlpid (struct nlpids *nlpids, struct stream *stream);
+int tlv_add_checksum (struct checksum *checksum,
+ struct stream *stream);
+int tlv_add_authinfo (char auth_type, char authlen, char *auth_value,
+ struct stream *stream);
+int tlv_add_ip_addrs (struct list *ip_addrs, struct stream *stream);
+int tlv_add_dynamic_hostname (struct hostname *hostname,struct stream *stream);
+int tlv_add_lsp_entries (struct list *lsps, struct stream *stream);
+int tlv_add_ipv4_reachs (struct list *ipv4_reachs, struct stream *stream);
+#ifdef HAVE_IPV6
+int tlv_add_ipv6_addrs (struct list *ipv6_addrs, struct stream *stream);
+int tlv_add_ipv6_reachs (struct list *ipv6_reachs, struct stream *stream);
+#endif /* HAVE_IPV6 */
+
+int tlv_add_padding (struct stream *stream);
+
+#endif /* _ZEBRA_ISIS_TLV_H */
+
+
+