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/*
* IS-IS Rout(e)ing protocol - LSP Hash
*
* Copyright (C) 2017 Christian Franke
*
* This file is part of FreeRangeRouting (FRR)
*
* FRR is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* FRR 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; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
#include "hash.h"
#include "jhash.h"
#include "isisd/isis_memory.h"
#include "isisd/isis_flags.h"
#include "dict.h"
#include "isisd/isis_circuit.h"
#include "isisd/isis_lsp.h"
#include "isisd/isis_lsp_hash.h"
DEFINE_MTYPE_STATIC(ISISD, LSP_HASH, "ISIS LSP Hash")
struct isis_lsp_hash {
struct hash *h;
};
static unsigned lsp_hash_key(void *lp)
{
struct isis_lsp *lsp = lp;
return jhash(lsp->hdr.lsp_id, ISIS_SYS_ID_LEN + 2, 0x55aa5a5a);
}
static int lsp_hash_cmp(const void *a, const void *b)
{
const struct isis_lsp *la = a, *lb = b;
return 0 == memcmp(la->hdr.lsp_id, lb->hdr.lsp_id, ISIS_SYS_ID_LEN + 2);
}
struct isis_lsp_hash *isis_lsp_hash_new(void)
{
struct isis_lsp_hash *rv = XCALLOC(MTYPE_LSP_HASH, sizeof(*rv));
rv->h = hash_create(lsp_hash_key, lsp_hash_cmp, NULL);
return rv;
}
void isis_lsp_hash_clean(struct isis_lsp_hash *ih)
{
hash_clean(ih->h, NULL);
}
void isis_lsp_hash_free(struct isis_lsp_hash *ih)
{
isis_lsp_hash_clean(ih);
hash_free(ih->h);
}
struct isis_lsp *isis_lsp_hash_lookup(struct isis_lsp_hash *ih,
struct isis_lsp *lsp)
{
return hash_lookup(ih->h, lsp);
}
void isis_lsp_hash_add(struct isis_lsp_hash *ih, struct isis_lsp *lsp)
{
struct isis_lsp *inserted;
inserted = hash_get(ih->h, lsp, hash_alloc_intern);
assert(inserted == lsp);
}
void isis_lsp_hash_release(struct isis_lsp_hash *ih, struct isis_lsp *lsp)
{
hash_release(ih->h, lsp);
}
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