diff options
Diffstat (limited to 'isisd/isis_tlv.h')
| -rw-r--r-- | isisd/isis_tlv.h | 254 |
1 files changed, 121 insertions, 133 deletions
diff --git a/isisd/isis_tlv.h b/isisd/isis_tlv.h index e55e81bce1..d06548519f 100644 --- a/isisd/isis_tlv.h +++ b/isisd/isis_tlv.h @@ -3,17 +3,17 @@ * IS-IS TLV related routines * * Copyright (C) 2001,2002 Sampo Saaristo - * Tampere University of Technology + * 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) + * 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 + * 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 @@ -134,54 +134,49 @@ #define MAX_SUBTLV_SIZE 256 /* struct for neighbor */ -struct is_neigh -{ - struct metric metrics; - u_char neigh_id[ISIS_SYS_ID_LEN + 1]; +struct is_neigh { + struct metric metrics; + u_char neigh_id[ISIS_SYS_ID_LEN + 1]; }; /* struct for te metric */ -struct te_is_neigh -{ - u_char neigh_id[ISIS_SYS_ID_LEN + 1]; - u_char te_metric[3]; - u_char sub_tlvs_length; - /* Theorical Maximum SubTLVs is 256 because the sub_tlvs_length is 8 bits */ - /* Practically, 118 bytes are necessary to store all supported TE parameters */ - /* FIXME: A pointer will use less memory, but need to be free */ - /* which is hard to fix, especially within free_tlvs() function */ - /* and malloc() / free() as a CPU cost compared to the memory usage */ - u_char sub_tlvs[MAX_SUBTLV_SIZE]; /* SUB TLVs storage */ +struct te_is_neigh { + u_char neigh_id[ISIS_SYS_ID_LEN + 1]; + u_char te_metric[3]; + u_char sub_tlvs_length; + /* Theorical Maximum SubTLVs is 256 because the sub_tlvs_length is 8 + * bits */ + /* Practically, 118 bytes are necessary to store all supported TE + * parameters */ + /* FIXME: A pointer will use less memory, but need to be free */ + /* which is hard to fix, especially within free_tlvs() function */ + /* and malloc() / free() as a CPU cost compared to the memory usage */ + u_char sub_tlvs[MAX_SUBTLV_SIZE]; /* SUB TLVs storage */ }; /* Decode and encode three-octet metric into host byte order integer */ -#define GET_TE_METRIC(t) \ - (((unsigned)(t)->te_metric[0]<<16) | ((t)->te_metric[1]<<8) | \ - (t)->te_metric[2]) -#define SET_TE_METRIC(t, m) \ - (((t)->te_metric[0] = (m) >> 16), \ - ((t)->te_metric[1] = (m) >> 8), \ - ((t)->te_metric[2] = (m))) +#define GET_TE_METRIC(t) \ + (((unsigned)(t)->te_metric[0] << 16) | ((t)->te_metric[1] << 8) \ + | (t)->te_metric[2]) +#define SET_TE_METRIC(t, m) \ + (((t)->te_metric[0] = (m) >> 16), ((t)->te_metric[1] = (m) >> 8), \ + ((t)->te_metric[2] = (m))) /* 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 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 partition_desig_level2_is { + struct list *isis_system_ids; }; /* struct for lan neighbors */ -struct lan_neigh -{ - u_char LAN_addr[6]; +struct lan_neigh { + u_char LAN_addr[6]; }; #ifdef __SUNPRO_C @@ -189,60 +184,54 @@ struct lan_neigh #endif /* 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 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)); #ifdef __SUNPRO_C #pragma pack() #endif /* struct for checksum */ -struct checksum -{ - u_int16_t checksum; +struct checksum { + u_int16_t checksum; }; /* ipv4 reachability */ -struct ipv4_reachability -{ - struct metric metrics; - struct in_addr prefix; - struct in_addr mask; +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; +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 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 */ #define TE_IPV4_HAS_SUBTLV (0x40) -struct idrp_info -{ - u_char len; - u_char *value; +struct idrp_info { + u_char len; + u_char *value; }; -struct ipv6_reachability -{ - u_int32_t metric; - u_char control_info; - u_char prefix_len; - u_char prefix[16]; +struct ipv6_reachability { + u_int32_t metric; + u_char control_info; + u_char prefix_len; + u_char prefix[16]; }; /* bits in control_info */ @@ -256,39 +245,37 @@ struct ipv6_reachability #define CTRL_INFO_SUBTLVS 0x20 -struct mt_router_info -{ - ISIS_MT_INFO_FIELDS - bool overload; +struct mt_router_info { + ISIS_MT_INFO_FIELDS + bool overload; }; /* * Pointer to each tlv type, filled by parse_tlvs() */ -struct tlvs -{ - struct checksum *checksum; - struct hostname *hostname; - struct nlpids *nlpids; - struct te_router_id *router_id; - struct list *area_addrs; - struct list *mt_router_info; - struct list *is_neighs; - struct list *te_is_neighs; - struct list *mt_is_neighs; - struct list *es_neighs; - struct list *lsp_entries; - struct list *prefix_neighs; - struct list *lan_neighs; - struct list *ipv4_addrs; - struct list *ipv4_int_reachs; - struct list *ipv4_ext_reachs; - struct list *te_ipv4_reachs; - struct list *mt_ipv4_reachs; - struct list *ipv6_addrs; - struct list *ipv6_reachs; - struct list *mt_ipv6_reachs; - struct isis_passwd auth_info; +struct tlvs { + struct checksum *checksum; + struct hostname *hostname; + struct nlpids *nlpids; + struct te_router_id *router_id; + struct list *area_addrs; + struct list *mt_router_info; + struct list *is_neighs; + struct list *te_is_neighs; + struct list *mt_is_neighs; + struct list *es_neighs; + struct list *lsp_entries; + struct list *prefix_neighs; + struct list *lan_neighs; + struct list *ipv4_addrs; + struct list *ipv4_int_reachs; + struct list *ipv4_ext_reachs; + struct list *te_ipv4_reachs; + struct list *mt_ipv4_reachs; + struct list *ipv6_addrs; + struct list *ipv6_reachs; + struct list *mt_ipv6_reachs; + struct isis_passwd auth_info; }; /* @@ -319,34 +306,35 @@ struct tlvs #define TLVFLAG_GRACEFUL_RESTART (1<<21) #define TLVFLAG_MT_ROUTER_INFORMATION (1<<22) -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, - u_int32_t * auth_tlv_offset); -int add_tlv (u_char, u_char, u_char *, struct stream *); -void free_tlv (void *val); - -int tlv_add_mt_router_info (struct list *mt_router_info, struct stream *stream); -int tlv_add_area_addrs (struct list *area_addrs, struct stream *stream); -int tlv_add_is_neighs (struct list *is_neighs, struct stream *stream); -unsigned int tlv_add_te_is_neighs (struct list *te_is_neighs, struct stream *stream, void *arg); -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 (u_char auth_type, u_char authlen, u_char *auth_value, - struct stream *stream); -int tlv_add_ip_addrs (struct list *ip_addrs, struct stream *stream); -int tlv_add_in_addr (struct in_addr *, struct stream *stream, u_char tag); -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_int_reachs (struct list *ipv4_reachs, struct stream *stream); -int tlv_add_ipv4_ext_reachs (struct list *ipv4_reachs, struct stream *stream); -unsigned int tlv_add_te_ipv4_reachs (struct list *te_ipv4_reachs, struct stream *stream, void *arg); -int tlv_add_ipv6_addrs (struct list *ipv6_addrs, struct stream *stream); -unsigned int tlv_add_ipv6_reachs (struct list *ipv6_reachs, struct stream *stream, void *arg); - -int tlv_add_padding (struct stream *stream); +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, u_int32_t *auth_tlv_offset); +int add_tlv(u_char, u_char, u_char *, struct stream *); +void free_tlv(void *val); + +int tlv_add_mt_router_info(struct list *mt_router_info, struct stream *stream); +int tlv_add_area_addrs(struct list *area_addrs, struct stream *stream); +int tlv_add_is_neighs(struct list *is_neighs, struct stream *stream); +unsigned int tlv_add_te_is_neighs(struct list *te_is_neighs, + struct stream *stream, void *arg); +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(u_char auth_type, u_char authlen, u_char *auth_value, + struct stream *stream); +int tlv_add_ip_addrs(struct list *ip_addrs, struct stream *stream); +int tlv_add_in_addr(struct in_addr *, struct stream *stream, u_char tag); +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_int_reachs(struct list *ipv4_reachs, struct stream *stream); +int tlv_add_ipv4_ext_reachs(struct list *ipv4_reachs, struct stream *stream); +unsigned int tlv_add_te_ipv4_reachs(struct list *te_ipv4_reachs, + struct stream *stream, void *arg); +int tlv_add_ipv6_addrs(struct list *ipv6_addrs, struct stream *stream); +unsigned int tlv_add_ipv6_reachs(struct list *ipv6_reachs, + struct stream *stream, void *arg); + +int tlv_add_padding(struct stream *stream); #endif /* _ZEBRA_ISIS_TLV_H */ |