SSLproxy/cachetgcrt.c
2019-08-08 12:23:04 +03:00

162 lines
4.0 KiB
C

/*-
* SSLsplit - transparent SSL/TLS interception
* https://www.roe.ch/SSLsplit
*
* Copyright (c) 2009-2019, Daniel Roethlisberger <daniel@roe.ch>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "cachetgcrt.h"
#include "ssl.h"
#include "khash.h"
/*
* Cache for target cert / chain / key tuples read from configured directory.
* This cache does not need garbage collection.
*
* key: char * common name
* val: cert_t * cert / chain / key tuple
*/
KHASH_INIT(cstrmap_t, char*, void*, 1, kh_str_hash_func, kh_str_hash_equal)
static khash_t(cstrmap_t) *certmap;
static cache_iter_t
cachetgcrt_begin_cb(void)
{
return kh_begin(certmap);
}
static cache_iter_t
cachetgcrt_end_cb(void)
{
return kh_end(certmap);
}
static int
cachetgcrt_exist_cb(cache_iter_t it)
{
return kh_exist(certmap, it);
}
static void
cachetgcrt_del_cb(cache_iter_t it)
{
kh_del(cstrmap_t, certmap, it);
}
static cache_iter_t
cachetgcrt_get_cb(cache_key_t key)
{
return kh_get(cstrmap_t, certmap, key);
}
static cache_iter_t
cachetgcrt_put_cb(cache_key_t key, int *ret)
{
return kh_put(cstrmap_t, certmap, key, ret);
}
static void
cachetgcrt_free_key_cb(cache_key_t key)
{
free(key);
}
static void
cachetgcrt_free_val_cb(cache_val_t val)
{
cert_free(val);
}
static cache_key_t
cachetgcrt_get_key_cb(cache_iter_t it)
{
return kh_key(certmap, it);
}
static cache_val_t
cachetgcrt_get_val_cb(cache_iter_t it)
{
return kh_val(certmap, it);
}
static void
cachetgcrt_set_val_cb(cache_iter_t it, cache_val_t val)
{
kh_val(certmap, it) = val;
}
static cache_val_t
cachetgcrt_unpackverify_val_cb(cache_val_t val, int copy)
{
if (copy) {
cert_refcount_inc(val);
return val;
}
return ((void*)-1);
}
static void
cachetgcrt_fini_cb(void)
{
kh_destroy(cstrmap_t, certmap);
}
void
cachetgcrt_init_cb(cache_t *cache)
{
certmap = kh_init(cstrmap_t);
cache->begin_cb = cachetgcrt_begin_cb;
cache->end_cb = cachetgcrt_end_cb;
cache->exist_cb = cachetgcrt_exist_cb;
cache->del_cb = cachetgcrt_del_cb;
cache->get_cb = cachetgcrt_get_cb;
cache->put_cb = cachetgcrt_put_cb;
cache->free_key_cb = cachetgcrt_free_key_cb;
cache->free_val_cb = cachetgcrt_free_val_cb;
cache->get_key_cb = cachetgcrt_get_key_cb;
cache->get_val_cb = cachetgcrt_get_val_cb;
cache->set_val_cb = cachetgcrt_set_val_cb;
cache->unpackverify_val_cb = cachetgcrt_unpackverify_val_cb;
cache->fini_cb = cachetgcrt_fini_cb;
}
cache_key_t
cachetgcrt_mkkey(const char *keycn)
{
return strdup(keycn);
}
cache_val_t
cachetgcrt_mkval(cert_t *valcrt)
{
cert_refcount_inc(valcrt);
return valcrt;
}
/* vim: set noet ft=c: */