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/*
* Copyright (c) 1997 - 2001, 2003, 2005 - 2005 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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 "kadm5_locl.h"
RCSID("$Id$");
struct rename_principal_hook_ctx {
kadm5_server_context *context;
enum kadm5_hook_stage stage;
krb5_error_code code;
krb5_const_principal source, target;
};
static krb5_error_code KRB5_LIB_CALL
rename_principal_hook_cb(krb5_context context,
const void *hook,
void *hookctx,
void *userctx)
{
krb5_error_code ret;
const struct kadm5_hook_ftable *ftable = hook;
struct rename_principal_hook_ctx *ctx = userctx;
ret = ftable->rename(context, hookctx,
ctx->stage, ctx->code,
ctx->source, ctx->target);
if (ret != 0 && ret != KRB5_PLUGIN_NO_HANDLE)
_kadm5_s_set_hook_error_message(ctx->context, ret, "rename",
hook, ctx->stage);
/* only pre-commit plugins can abort */
if (ret == 0 || ctx->stage == KADM5_HOOK_STAGE_POSTCOMMIT)
ret = KRB5_PLUGIN_NO_HANDLE;
return ret;
}
static kadm5_ret_t
rename_principal_hook(kadm5_server_context *context,
enum kadm5_hook_stage stage,
krb5_error_code code,
krb5_const_principal source,
krb5_const_principal target)
{
krb5_error_code ret;
struct rename_principal_hook_ctx ctx;
ctx.context = context;
ctx.stage = stage;
ctx.code = code;
ctx.source = source;
ctx.target = target;
ret = _krb5_plugin_run_f(context->context, &kadm5_hook_plugin_data,
0, &ctx, rename_principal_hook_cb);
if (ret == KRB5_PLUGIN_NO_HANDLE)
ret = 0;
return ret;
}
kadm5_ret_t
kadm5_s_rename_principal(void *server_handle,
krb5_principal source,
krb5_principal target)
{
kadm5_server_context *context = server_handle;
kadm5_ret_t ret;
hdb_entry ent;
krb5_principal oldname;
size_t i;
memset(&ent, 0, sizeof(ent));
if (krb5_principal_compare(context->context, source, target))
return KADM5_DUP; /* XXX is this right? */
if (!context->keep_open) {
ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
if(ret)
return ret;
}
ret = kadm5_log_init(context);
if (ret)
goto out;
/* NOTE: We do not use hdb_fetch_kvno() here */
ret = context->db->hdb_fetch_kvno(context->context, context->db,
source,
HDB_F_DECRYPT|HDB_F_GET_ANY|HDB_F_ADMIN_DATA,
0, &ent);
if (ret)
goto out2;
oldname = ent.principal;
ret = rename_principal_hook(context, KADM5_HOOK_STAGE_PRECOMMIT,
0, source, target);
if (ret)
goto out3;
ret = _kadm5_set_modifier(context, &ent);
if (ret)
goto out3;
{
/* fix salt */
Salt salt;
krb5_salt salt2;
memset(&salt, 0, sizeof(salt));
ret = krb5_get_pw_salt(context->context, source, &salt2);
if (ret)
goto out3;
salt.type = hdb_pw_salt;
salt.salt = salt2.saltvalue;
for(i = 0; i < ent.keys.len; i++){
if(ent.keys.val[i].salt == NULL){
ent.keys.val[i].salt =
malloc(sizeof(*ent.keys.val[i].salt));
if (ent.keys.val[i].salt == NULL)
ret = krb5_enomem(context->context);
else
ret = copy_Salt(&salt, ent.keys.val[i].salt);
if (ret)
break;
}
}
krb5_free_salt(context->context, salt2);
}
if (ret)
goto out3;
/* Borrow target */
ent.principal = target;
ret = hdb_seal_keys(context->context, context->db, &ent);
if (ret)
goto out3;
/* This logs the change for iprop and writes to the HDB */
ret = kadm5_log_rename(context, source, &ent);
(void) rename_principal_hook(context, KADM5_HOOK_STAGE_POSTCOMMIT,
ret, source, target);
out3:
ent.principal = oldname; /* Unborrow target */
hdb_free_entry(context->context, context->db, &ent);
out2:
(void) kadm5_log_end(context);
out:
if (!context->keep_open) {
kadm5_ret_t ret2;
ret2 = context->db->hdb_close(context->context, context->db);
if (ret == 0 && ret2 != 0)
ret = ret2;
}
return _kadm5_error_code(ret);
}
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