159 lines
3.6 KiB
C
159 lines
3.6 KiB
C
/*
|
|
* This file is part of the Sofia-SIP package
|
|
*
|
|
* Copyright (C) 2005 Nokia Corporation.
|
|
*
|
|
* Contact: Pekka Pessi <pekka.pessi@nokia.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public License
|
|
* as published by the Free Software Foundation; either version 2.1 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
|
|
* 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
/**@internal
|
|
* @file auth_plugin.c
|
|
* @brief Plugin interface for authentication verification modules.
|
|
*
|
|
* @author Pekka Pessi <Pekka.Pessi@nokia.com>
|
|
*
|
|
* @date Created: Tue Apr 27 15:23:31 2004 ppessi
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
|
|
#include <sofia-sip/auth_digest.h>
|
|
|
|
#if HAVE_FUNC
|
|
#elif HAVE_FUNCTION
|
|
#define __func__ __FUNCTION__
|
|
#else
|
|
static char const __func__[] = "auth_plugin";
|
|
#endif
|
|
|
|
#include <sofia-sip/su_debug.h>
|
|
|
|
#include <sofia-sip/su_wait.h>
|
|
#include <sofia-sip/su_alloc.h>
|
|
#include <sofia-sip/su_string.h>
|
|
#include <sofia-sip/su_tagarg.h>
|
|
|
|
#include "sofia-sip/auth_module.h"
|
|
#include "sofia-sip/auth_plugin.h"
|
|
|
|
extern auth_scheme_t auth_scheme_basic[];
|
|
extern auth_scheme_t auth_scheme_digest[];
|
|
extern auth_scheme_t auth_scheme_delayed[];
|
|
|
|
enum { N = 32 };
|
|
|
|
static auth_scheme_t *schemes[N] = {
|
|
auth_scheme_basic,
|
|
auth_scheme_digest,
|
|
auth_scheme_delayed
|
|
};
|
|
|
|
/** Register an authentication plugin.
|
|
*
|
|
* @retval 0 when successful
|
|
* @retval -1 upon an error
|
|
*/
|
|
int auth_mod_register_plugin(auth_scheme_t *asch)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; schemes[i]; i++) {
|
|
if (i == N)
|
|
return -1;
|
|
}
|
|
|
|
schemes[i] = asch;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**Create an authentication plugin module.
|
|
*
|
|
* The function auth_mod_create() creates a module used to authenticate the
|
|
* requests.
|
|
*
|
|
* @param root pointer to a su_root_t object
|
|
* @param tag,value,... tagged argument list
|
|
*
|
|
* @TAGS
|
|
* AUTHTAG_METHOD(), AUTHTAG_REALM(), AUTHTAG_DB(), AUTHTAG_ALLOW(),
|
|
* AUTHTAG_QOP(), AUTHTAG_ALGORITHM(), AUTHTAG_EXPIRES(),
|
|
* AUTHTAG_BLACKLIST(), AUTHTAG_FORBIDDEN(), AUTHTAG_ANONYMOUS(),
|
|
* AUTHTAG_REMOTE().
|
|
*/
|
|
auth_mod_t *auth_mod_create(su_root_t *root,
|
|
tag_type_t tag, tag_value_t value, ...)
|
|
{
|
|
auth_mod_t *am = NULL;
|
|
|
|
ta_list ta;
|
|
|
|
char const *method = NULL;
|
|
|
|
ta_start(ta, tag, value);
|
|
|
|
tl_gets(ta_args(ta),
|
|
AUTHTAG_METHOD_REF(method),
|
|
TAG_NULL());
|
|
|
|
if (method) {
|
|
auth_scheme_t *bscheme = NULL;
|
|
char const *base;
|
|
size_t len;
|
|
|
|
base = strrchr(method, '+');
|
|
if (base)
|
|
len = base++ - method;
|
|
else
|
|
len = strlen(method);
|
|
|
|
if (base == NULL)
|
|
;
|
|
else if (su_casematch(base, "Basic"))
|
|
bscheme = auth_scheme_basic;
|
|
else if (su_casematch(base, "Digest"))
|
|
bscheme = auth_scheme_digest;
|
|
|
|
if (base == NULL || bscheme) {
|
|
int i;
|
|
|
|
for (i = 0; schemes[i] && i < N; i++) {
|
|
if (su_casenmatch(schemes[i]->asch_method, method, len) &&
|
|
schemes[i]->asch_method[len] == 0) {
|
|
am = auth_mod_alloc(schemes[i], ta_tags(ta));
|
|
if (schemes[i]->asch_init(am, bscheme, root, ta_tags(ta)) == -1) {
|
|
auth_mod_destroy(am), am = NULL;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ta_end(ta);
|
|
|
|
return am;
|
|
}
|