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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 1993 by OpenVision Technologies, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appears in all copies and
* that both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of OpenVision not be used
* in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. OpenVision makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/*
* $Id$
*/
/*
* functions to validate name, credential, and context handles
*/
#include "gssapiP_generic.h"
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <fcntl.h>
#include <limits.h>
#ifdef HAVE_BSD_DB
#include <sys/file.h>
#include <db.h>
static const int one = 1;
static const DBT dbtone = { (void *) &one, sizeof(one) };
typedef struct _vkey {
int type;
void *ptr;
} vkey;
#endif
#define V_NAME 1
#define V_CRED_ID 2
#define V_CTX_ID 3
#define V_LCTX_ID 4
/* All these functions return 0 on failure, and non-zero on success */
static int g_save(db, type, ptr)
g_set *db;
#ifdef HAVE_BSD_DB
int type;
#else
void *type;
#endif
void *ptr;
{
int ret;
#ifdef HAVE_BSD_DB
DB **vdb;
vkey vk;
DBT key;
ret = k5_mutex_lock(&db->mutex);
if (ret)
return 0;
vdb = (DB **) &db->data;
if (!*vdb)
*vdb = dbopen(NULL, O_CREAT|O_RDWR, O_CREAT|O_RDWR, DB_HASH, NULL);
vk.type = type;
vk.ptr = ptr;
key.data = &vk;
key.size = sizeof(vk);
ret = ((*((*vdb)->put))(*vdb, &key, &dbtone, 0) == 0);
k5_mutex_unlock(&db->mutex);
return ret;
#else
g_set_elt *gs;
ret = k5_mutex_lock(&db->mutex);
if (ret)
return 0;
gs = (g_set_elt *) &db->data;
if (!*gs)
if (g_set_init(gs)) {
k5_mutex_unlock(&db->mutex);
return(0);
}
ret = (g_set_entry_add(gs, ptr, type) == 0);
k5_mutex_unlock(&db->mutex);
return ret;
#endif
}
static int g_validate(db, type, ptr)
g_set *db;
#ifdef HAVE_BSD_DB
int type;
#else
void *type;
#endif
void *ptr;
{
int ret;
#ifdef HAVE_BSD_DB
DB **vdb;
vkey vk;
DBT key, value;
ret = k5_mutex_lock(&db->mutex);
if (ret)
return 0;
vdb = (DB **) &db->data;
if (!*vdb) {
k5_mutex_unlock(&db->mutex);
return(0);
}
vk.type = type;
vk.ptr = ptr;
key.data = &vk;
key.size = sizeof(vk);
if ((*((*vdb)->get))(*vdb, &key, &value, 0)) {
k5_mutex_unlock(&db->mutex);
return(0);
}
k5_mutex_unlock(&db->mutex);
return((value.size == sizeof(one)) &&
(*((int *) value.data) == one));
#else
g_set_elt *gs;
void *value;
ret = k5_mutex_lock(&db->mutex);
if (ret)
return 0;
gs = (g_set_elt *) &db->data;
if (!*gs) {
k5_mutex_unlock(&db->mutex);
return(0);
}
if (g_set_entry_get(gs, ptr, (void **) &value)) {
k5_mutex_unlock(&db->mutex);
return(0);
}
k5_mutex_unlock(&db->mutex);
return(value == type);
#endif
}
static int g_delete(db, type, ptr)
g_set *db;
#ifdef HAVE_BSD_DB
int type;
#else
void *type;
#endif
void *ptr;
{
int ret;
#ifdef HAVE_BSD_DB
DB **vdb;
vkey vk;
DBT key;
ret = k5_mutex_lock(&db->mutex);
if (ret)
return 0;
vdb = (DB **) &db->data;
if (!*vdb) {
k5_mutex_unlock(&db->mutex);
return(0);
}
vk.type = type;
vk.ptr = ptr;
key.data = &vk;
key.size = sizeof(vk);
ret = ((*((*vdb)->del))(*vdb, &key, 0) == 0);
k5_mutex_unlock(&db->mutex);
return ret;
#else
g_set_elt *gs;
ret = k5_mutex_lock(&db->mutex);
if (ret)
return 0;
gs = (g_set_elt *) &db->data;
if (!*gs) {
k5_mutex_unlock(&db->mutex);
return(0);
}
if (g_set_entry_delete(gs, ptr)) {
k5_mutex_unlock(&db->mutex);
return(0);
}
k5_mutex_unlock(&db->mutex);
return(1);
#endif
}
/* functions for each type */
/* save */
int g_save_name(vdb, name)
g_set *vdb;
gss_name_t name;
{
return(g_save(vdb, V_NAME, (void *) name));
}
int g_save_cred_id(vdb, cred)
g_set *vdb;
gss_cred_id_t cred;
{
return(g_save(vdb, V_CRED_ID, (void *) cred));
}
int g_save_ctx_id(vdb, ctx)
g_set *vdb;
gss_ctx_id_t ctx;
{
return(g_save(vdb, V_CTX_ID, (void *) ctx));
}
int g_save_lucidctx_id(vdb, lctx)
g_set *vdb;
void *lctx;
{
return(g_save(vdb, V_LCTX_ID, (void *) lctx));
}
/* validate */
int g_validate_name(vdb, name)
g_set *vdb;
gss_name_t name;
{
return(g_validate(vdb, V_NAME, (void *) name));
}
int g_validate_cred_id(vdb, cred)
g_set *vdb;
gss_cred_id_t cred;
{
return(g_validate(vdb, V_CRED_ID, (void *) cred));
}
int g_validate_ctx_id(vdb, ctx)
g_set *vdb;
gss_ctx_id_t ctx;
{
return(g_validate(vdb, V_CTX_ID, (void *) ctx));
}
int g_validate_lucidctx_id(vdb, lctx)
g_set *vdb;
void *lctx;
{
return(g_validate(vdb, V_LCTX_ID, (void *) lctx));
}
/* delete */
int g_delete_name(vdb, name)
g_set *vdb;
gss_name_t name;
{
return(g_delete(vdb, V_NAME, (void *) name));
}
int g_delete_cred_id(vdb, cred)
g_set *vdb;
gss_cred_id_t cred;
{
return(g_delete(vdb, V_CRED_ID, (void *) cred));
}
int g_delete_ctx_id(vdb, ctx)
g_set *vdb;
gss_ctx_id_t ctx;
{
return(g_delete(vdb, V_CTX_ID, (void *) ctx));
}
int g_delete_lucidctx_id(vdb, lctx)
g_set *vdb;
void *lctx;
{
return(g_delete(vdb, V_LCTX_ID, (void *) lctx));
}
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