1 /* $NetBSD: modify_s.c,v 1.2 2017/01/28 21:31:49 christos Exp $ */
2
3 /*
4 * Copyright (c) 1997-2001, 2003, 2005-2006 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "kadm5_locl.h"
37
38 __RCSID("$NetBSD: modify_s.c,v 1.2 2017/01/28 21:31:49 christos Exp $");
39
40 static kadm5_ret_t
modify_principal(void * server_handle,kadm5_principal_ent_t princ,uint32_t mask,uint32_t forbidden_mask)41 modify_principal(void *server_handle,
42 kadm5_principal_ent_t princ,
43 uint32_t mask,
44 uint32_t forbidden_mask)
45 {
46 kadm5_server_context *context = server_handle;
47 hdb_entry_ex ent;
48 kadm5_ret_t ret;
49
50 memset(&ent, 0, sizeof(ent));
51
52 if((mask & forbidden_mask))
53 return KADM5_BAD_MASK;
54 if((mask & KADM5_POLICY) && strcmp(princ->policy, "default"))
55 return KADM5_UNK_POLICY;
56
57 if (!context->keep_open) {
58 ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
59 if(ret)
60 return ret;
61 }
62
63 ret = kadm5_log_init(context);
64 if (ret)
65 goto out;
66
67 ret = context->db->hdb_fetch_kvno(context->context, context->db,
68 princ->principal, HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent);
69 if (ret)
70 goto out2;
71 ret = _kadm5_setup_entry(context, &ent, mask, princ, mask, NULL, 0);
72 if (ret)
73 goto out3;
74 ret = _kadm5_set_modifier(context, &ent.entry);
75 if (ret)
76 goto out3;
77
78 /*
79 * If any keys are bogus, disallow the modify. If the keys were
80 * bogus as stored in the HDB we could allow those through, but
81 * distinguishing that case from a pre-1.6 client using add_enctype
82 * without the get-keys privilege requires more work (mainly: checking that
83 * the bogus keys in princ->key_data[] have corresponding bogus keys in ent
84 * before calling _kadm5_setup_entry()).
85 */
86 if ((mask & KADM5_KEY_DATA) &&
87 kadm5_some_keys_are_bogus(princ->n_key_data, princ->key_data)) {
88 ret = KADM5_AUTH_GET_KEYS; /* Not quite appropriate, but it'll do */
89 goto out3;
90 }
91
92 ret = hdb_seal_keys(context->context, context->db, &ent.entry);
93 if (ret)
94 goto out3;
95
96 if ((mask & KADM5_POLICY)) {
97 HDB_extension ext;
98
99 memset(&ext, 0, sizeof(ext));
100 /* XXX should be TRUE, but we don't yet support policies */
101 ext.mandatory = FALSE;
102 ext.data.element = choice_HDB_extension_data_policy;
103 ext.data.u.policy = strdup(princ->policy);
104 if (ext.data.u.policy == NULL) {
105 ret = ENOMEM;
106 goto out3;
107 }
108 /* This calls free_HDB_extension(), freeing ext.data.u.policy */
109 ret = hdb_replace_extension(context->context, &ent.entry, &ext);
110 free(ext.data.u.policy);
111 if (ret)
112 goto out3;
113 }
114
115 /* This logs the change for iprop and writes to the HDB */
116 ret = kadm5_log_modify(context, &ent.entry,
117 mask | KADM5_MOD_NAME | KADM5_MOD_TIME);
118
119 out3:
120 hdb_free_entry(context->context, &ent);
121 out2:
122 (void) kadm5_log_end(context);
123 out:
124 if (!context->keep_open) {
125 kadm5_ret_t ret2;
126 ret2 = context->db->hdb_close(context->context, context->db);
127 if (ret == 0 && ret2 != 0)
128 ret = ret2;
129 }
130 return _kadm5_error_code(ret);
131 }
132
133
134 kadm5_ret_t
kadm5_s_modify_principal(void * server_handle,kadm5_principal_ent_t princ,uint32_t mask)135 kadm5_s_modify_principal(void *server_handle,
136 kadm5_principal_ent_t princ,
137 uint32_t mask)
138 {
139 return modify_principal(server_handle, princ, mask,
140 KADM5_LAST_PWD_CHANGE | KADM5_MOD_TIME
141 | KADM5_MOD_NAME | KADM5_MKVNO
142 | KADM5_AUX_ATTRIBUTES | KADM5_LAST_SUCCESS
143 | KADM5_LAST_FAILED);
144 }
145