diff options
Diffstat (limited to 'lib/kadm5/chpass_s.c')
| -rw-r--r-- | lib/kadm5/chpass_s.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/lib/kadm5/chpass_s.c b/lib/kadm5/chpass_s.c new file mode 100644 index 0000000..abef28c --- /dev/null +++ b/lib/kadm5/chpass_s.c @@ -0,0 +1,192 @@ +/* + * Copyright (c) 1997-2006 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: chpass_s.c 20608 2007-05-08 07:11:48Z lha $"); + +static kadm5_ret_t +change(void *server_handle, + krb5_principal princ, + const char *password, + int cond) +{ + kadm5_server_context *context = server_handle; + hdb_entry_ex ent; + kadm5_ret_t ret; + Key *keys; + size_t num_keys; + int cmp = 1; + + memset(&ent, 0, sizeof(ent)); + ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0); + if(ret) + return ret; + ret = context->db->hdb_fetch(context->context, context->db, princ, + HDB_F_DECRYPT|HDB_F_GET_ANY, &ent); + if(ret == HDB_ERR_NOENTRY) + goto out; + + num_keys = ent.entry.keys.len; + keys = ent.entry.keys.val; + + ent.entry.keys.len = 0; + ent.entry.keys.val = NULL; + + ret = _kadm5_set_keys(context, &ent.entry, password); + if(ret) { + _kadm5_free_keys (context->context, num_keys, keys); + goto out2; + } + ent.entry.kvno++; + if (cond) + cmp = _kadm5_cmp_keys (ent.entry.keys.val, ent.entry.keys.len, + keys, num_keys); + _kadm5_free_keys (context->context, num_keys, keys); + + if (cmp == 0) { + krb5_set_error_string(context->context, "Password reuse forbidden"); + ret = KADM5_PASS_REUSE; + goto out2; + } + + ret = _kadm5_set_modifier(context, &ent.entry); + if(ret) + goto out2; + + ret = _kadm5_bump_pw_expire(context, &ent.entry); + if (ret) + goto out2; + + ret = hdb_seal_keys(context->context, context->db, &ent.entry); + if (ret) + goto out2; + + ret = context->db->hdb_store(context->context, context->db, + HDB_F_REPLACE, &ent); + if (ret) + goto out2; + + kadm5_log_modify (context, + &ent.entry, + KADM5_PRINCIPAL | KADM5_MOD_NAME | KADM5_MOD_TIME | + KADM5_KEY_DATA | KADM5_KVNO | KADM5_PW_EXPIRATION | + KADM5_TL_DATA); + +out2: + hdb_free_entry(context->context, &ent); +out: + context->db->hdb_close(context->context, context->db); + return _kadm5_error_code(ret); +} + + + +/* + * change the password of `princ' to `password' if it's not already that. + */ + +kadm5_ret_t +kadm5_s_chpass_principal_cond(void *server_handle, + krb5_principal princ, + const char *password) +{ + return change (server_handle, princ, password, 1); +} + +/* + * change the password of `princ' to `password' + */ + +kadm5_ret_t +kadm5_s_chpass_principal(void *server_handle, + krb5_principal princ, + const char *password) +{ + return change (server_handle, princ, password, 0); +} + +/* + * change keys for `princ' to `keys' + */ + +kadm5_ret_t +kadm5_s_chpass_principal_with_key(void *server_handle, + krb5_principal princ, + int n_key_data, + krb5_key_data *key_data) +{ + kadm5_server_context *context = server_handle; + hdb_entry_ex ent; + kadm5_ret_t ret; + + memset(&ent, 0, sizeof(ent)); + ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0); + if(ret) + return ret; + ret = context->db->hdb_fetch(context->context, context->db, princ, + HDB_F_GET_ANY, &ent); + if(ret == HDB_ERR_NOENTRY) + goto out; + ret = _kadm5_set_keys2(context, &ent.entry, n_key_data, key_data); + if(ret) + goto out2; + ent.entry.kvno++; + ret = _kadm5_set_modifier(context, &ent.entry); + if(ret) + goto out2; + ret = _kadm5_bump_pw_expire(context, &ent.entry); + if (ret) + goto out2; + + ret = hdb_seal_keys(context->context, context->db, &ent.entry); + if (ret) + goto out2; + + ret = context->db->hdb_store(context->context, context->db, + HDB_F_REPLACE, &ent); + if (ret) + goto out2; + + kadm5_log_modify (context, + &ent.entry, + KADM5_PRINCIPAL | KADM5_MOD_NAME | KADM5_MOD_TIME | + KADM5_KEY_DATA | KADM5_KVNO | KADM5_PW_EXPIRATION | + KADM5_TL_DATA); + +out2: + hdb_free_entry(context->context, &ent); +out: + context->db->hdb_close(context->context, context->db); + return _kadm5_error_code(ret); +} |
