dfc7ec92fa
The libkadm5 functions hdb_open() and close around all HDB ops. This meant the previous implementation of kadm5_lock() and unlock would always result in a core dump. Now we hdb_open() for write in kadm5_lock() and hdb_close() in kadm5_unlock(), with all kadm5_s_*() functions now not opening nor closing the HDB when the server context keep_open flag is set. Also, there's now kadmin(8) lock and unlock commands. These are there primarily as a way to test the kadm5_lock()/unlock() operations, but MIT's kadmin.local also has lock/unlock commands, and these can be useful for scripting (though they require much care).
118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
/*
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* Copyright (c) 1997, 1998, 1999 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "kadm5_locl.h"
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RCSID("$Id$");
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struct foreach_data {
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const char *exp;
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char *exp2;
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char **princs;
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int count;
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};
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static krb5_error_code
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add_princ(struct foreach_data *d, char *princ)
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{
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char **tmp;
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tmp = realloc(d->princs, (d->count + 1) * sizeof(*tmp));
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if(tmp == NULL)
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return ENOMEM;
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d->princs = tmp;
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d->princs[d->count++] = princ;
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return 0;
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}
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static krb5_error_code
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foreach(krb5_context context, HDB *db, hdb_entry_ex *ent, void *data)
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{
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struct foreach_data *d = data;
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char *princ;
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krb5_error_code ret;
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ret = krb5_unparse_name(context, ent->entry.principal, &princ);
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if(ret)
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return ret;
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if(d->exp){
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if(fnmatch(d->exp, princ, 0) == 0 || fnmatch(d->exp2, princ, 0) == 0)
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ret = add_princ(d, princ);
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else
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free(princ);
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}else{
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ret = add_princ(d, princ);
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}
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if(ret)
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free(princ);
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return ret;
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}
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kadm5_ret_t
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kadm5_s_get_principals(void *server_handle,
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const char *expression,
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char ***princs,
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int *count)
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{
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struct foreach_data d;
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kadm5_server_context *context = server_handle;
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kadm5_ret_t ret;
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if (!context->keep_open) {
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ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
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if(ret) {
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krb5_warn(context->context, ret, "opening database");
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return ret;
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}
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}
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d.exp = expression;
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{
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krb5_realm r;
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krb5_get_default_realm(context->context, &r);
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asprintf(&d.exp2, "%s@%s", expression, r);
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free(r);
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}
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d.princs = NULL;
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d.count = 0;
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ret = hdb_foreach(context->context, context->db, HDB_F_ADMIN_DATA, foreach, &d);
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if (!context->keep_open)
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context->db->hdb_close(context->context, context->db);
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if(ret == 0)
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ret = add_princ(&d, NULL);
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if(ret == 0){
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*princs = d.princs;
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*count = d.count - 1;
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}else
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kadm5_free_name_list(context, d.princs, &d.count);
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free(d.exp2);
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return _kadm5_error_code(ret);
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}
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