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095f8fae64
Licensing is unclear and the tool is a testbed-only half-broken pile of goo. Remove. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
118 lines
4.6 KiB
C
118 lines
4.6 KiB
C
/*
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* IS-IS Rout(e)ing protocol - isis_lsp.h
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* LSP processing
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*
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* Copyright (C) 2001,2002 Sampo Saaristo
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* Tampere University of Technology
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* Institute of Communications Engineering
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public Licenseas published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _ZEBRA_ISIS_LSP_H
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#define _ZEBRA_ISIS_LSP_H
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/* Structure for isis_lsp, this structure will only support the fixed
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* System ID (Currently 6) (atleast for now). In order to support more
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* We will have to split the header into two parts, and for readability
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* sake it should better be avoided */
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struct isis_lsp
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{
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struct isis_fixed_hdr *isis_header; /* normally equals pdu */
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struct isis_link_state_hdr *lsp_header; /* pdu + isis_header_len */
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struct stream *pdu; /* full pdu lsp */
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union
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{
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struct list *frags;
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struct isis_lsp *zero_lsp;
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} lspu;
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u_int32_t auth_tlv_offset; /* authentication TLV position in the pdu */
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u_int32_t SRMflags[ISIS_MAX_CIRCUITS];
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u_int32_t SSNflags[ISIS_MAX_CIRCUITS];
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int level; /* L1 or L2? */
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int scheduled; /* scheduled for sending */
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time_t installed;
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time_t last_generated;
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int own_lsp;
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/* used for 60 second counting when rem_lifetime is zero */
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int age_out;
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struct isis_area *area;
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struct tlvs tlv_data; /* Simplifies TLV access */
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};
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dict_t *lsp_db_init (void);
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void lsp_db_destroy (dict_t * lspdb);
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int lsp_tick (struct thread *thread);
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int lsp_generate (struct isis_area *area, int level);
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int lsp_regenerate_schedule (struct isis_area *area, int level,
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int all_pseudo);
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int lsp_generate_pseudo (struct isis_circuit *circuit, int level);
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int lsp_regenerate_schedule_pseudo (struct isis_circuit *circuit, int level);
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struct isis_lsp *lsp_new (struct isis_area *area, u_char * lsp_id,
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u_int16_t rem_lifetime,
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u_int32_t seq_num, u_int8_t lsp_bits,
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u_int16_t checksum, int level);
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struct isis_lsp *lsp_new_from_stream_ptr (struct stream *stream,
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u_int16_t pdu_len,
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struct isis_lsp *lsp0,
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struct isis_area *area,
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int level);
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void lsp_insert (struct isis_lsp *lsp, dict_t * lspdb);
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struct isis_lsp *lsp_search (u_char * id, dict_t * lspdb);
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void lsp_build_list (u_char * start_id, u_char * stop_id, u_char num_lsps,
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struct list *list, dict_t * lspdb);
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void lsp_build_list_nonzero_ht (u_char * start_id, u_char * stop_id,
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struct list *list, dict_t * lspdb);
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void lsp_build_list_ssn (struct isis_circuit *circuit, u_char num_lsps,
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struct list *list, dict_t * lspdb);
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void lsp_search_and_destroy (u_char * id, dict_t * lspdb);
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void lsp_purge_pseudo (u_char * id, struct isis_circuit *circuit, int level);
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void lsp_purge_non_exist (int level,
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struct isis_link_state_hdr *lsp_hdr,
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struct isis_area *area);
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#define LSP_EQUAL 1
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#define LSP_NEWER 2
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#define LSP_OLDER 3
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#define LSP_PSEUDO_ID(I) ((I)[ISIS_SYS_ID_LEN])
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#define LSP_FRAGMENT(I) ((I)[ISIS_SYS_ID_LEN + 1])
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#define OWNLSPID(I) \
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memcpy ((I), isis->sysid, ISIS_SYS_ID_LEN);\
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(I)[ISIS_SYS_ID_LEN] = 0;\
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(I)[ISIS_SYS_ID_LEN + 1] = 0
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int lsp_id_cmp (u_char * id1, u_char * id2);
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int lsp_compare (char *areatag, struct isis_lsp *lsp, u_int32_t seq_num,
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u_int16_t checksum, u_int16_t rem_lifetime);
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void lsp_update (struct isis_lsp *lsp, struct stream *stream,
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struct isis_area *area, int level);
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void lsp_inc_seqnum (struct isis_lsp *lsp, u_int32_t seq_num);
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void lsp_print (struct isis_lsp *lsp, struct vty *vty, char dynhost);
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void lsp_print_detail (struct isis_lsp *lsp, struct vty *vty, char dynhost);
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int lsp_print_all (struct vty *vty, dict_t * lspdb, char detail,
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char dynhost);
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const char *lsp_bits2string (u_char *);
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void lsp_te_tlv_fit (struct isis_lsp *lsp, struct list **from,
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struct list **to, int frag_thold);
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/* sets SRMflags for all active circuits of an lsp */
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void lsp_set_all_srmflags (struct isis_lsp *lsp);
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#endif /* ISIS_LSP */
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