xref: /freebsd/crypto/heimdal/kadmin/mod.c (revision fed1ca4b719c56c930f2259d80663cd34be812bb)
1 /*
2  * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * 3. Neither the name of the Institute nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #include "kadmin_locl.h"
35 #include "kadmin-commands.h"
36 
37 static void
38 add_tl(kadm5_principal_ent_rec *princ, int type, krb5_data *data)
39 {
40     krb5_tl_data *tl, **ptl;
41 
42     tl = ecalloc(1, sizeof(*tl));
43     tl->tl_data_next = NULL;
44     tl->tl_data_type = KRB5_TL_EXTENSION;
45     tl->tl_data_length = data->length;
46     tl->tl_data_contents = data->data;
47 
48     princ->n_tl_data++;
49     ptl = &princ->tl_data;
50     while (*ptl != NULL)
51 	ptl = &(*ptl)->tl_data_next;
52     *ptl = tl;
53 
54     return;
55 }
56 
57 static void
58 add_constrained_delegation(krb5_context contextp,
59 			   kadm5_principal_ent_rec *princ,
60 			   struct getarg_strings *strings)
61 {
62     krb5_error_code ret;
63     HDB_extension ext;
64     krb5_data buf;
65     size_t size = 0;
66 
67     memset(&ext, 0, sizeof(ext));
68     ext.mandatory = FALSE;
69     ext.data.element = choice_HDB_extension_data_allowed_to_delegate_to;
70 
71     if (strings->num_strings == 1 && strings->strings[0][0] == '\0') {
72 	ext.data.u.allowed_to_delegate_to.val = NULL;
73 	ext.data.u.allowed_to_delegate_to.len = 0;
74     } else {
75 	krb5_principal p;
76 	int i;
77 
78 	ext.data.u.allowed_to_delegate_to.val =
79 	    calloc(strings->num_strings,
80 		   sizeof(ext.data.u.allowed_to_delegate_to.val[0]));
81 	ext.data.u.allowed_to_delegate_to.len = strings->num_strings;
82 
83 	for (i = 0; i < strings->num_strings; i++) {
84 	    ret = krb5_parse_name(contextp, strings->strings[i], &p);
85 	    if (ret)
86 		abort();
87 	    ret = copy_Principal(p, &ext.data.u.allowed_to_delegate_to.val[i]);
88 	    if (ret)
89 		abort();
90 	    krb5_free_principal(contextp, p);
91 	}
92     }
93 
94     ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length,
95 		       &ext, &size, ret);
96     free_HDB_extension(&ext);
97     if (ret)
98 	abort();
99     if (buf.length != size)
100 	abort();
101 
102     add_tl(princ, KRB5_TL_EXTENSION, &buf);
103 }
104 
105 static void
106 add_aliases(krb5_context contextp, kadm5_principal_ent_rec *princ,
107 	    struct getarg_strings *strings)
108 {
109     krb5_error_code ret;
110     HDB_extension ext;
111     krb5_data buf;
112     krb5_principal p;
113     size_t size = 0;
114     int i;
115 
116     memset(&ext, 0, sizeof(ext));
117     ext.mandatory = FALSE;
118     ext.data.element = choice_HDB_extension_data_aliases;
119     ext.data.u.aliases.case_insensitive = 0;
120 
121     if (strings->num_strings == 1 && strings->strings[0][0] == '\0') {
122 	ext.data.u.aliases.aliases.val = NULL;
123 	ext.data.u.aliases.aliases.len = 0;
124     } else {
125 	ext.data.u.aliases.aliases.val =
126 	    calloc(strings->num_strings,
127 		   sizeof(ext.data.u.aliases.aliases.val[0]));
128 	ext.data.u.aliases.aliases.len = strings->num_strings;
129 
130 	for (i = 0; i < strings->num_strings; i++) {
131 	    ret = krb5_parse_name(contextp, strings->strings[i], &p);
132 	    ret = copy_Principal(p, &ext.data.u.aliases.aliases.val[i]);
133 	    krb5_free_principal(contextp, p);
134 	}
135     }
136 
137     ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length,
138 		       &ext, &size, ret);
139     free_HDB_extension(&ext);
140     if (ret)
141 	abort();
142     if (buf.length != size)
143 	abort();
144 
145     add_tl(princ, KRB5_TL_EXTENSION, &buf);
146 }
147 
148 static void
149 add_pkinit_acl(krb5_context contextp, kadm5_principal_ent_rec *princ,
150 	       struct getarg_strings *strings)
151 {
152     krb5_error_code ret;
153     HDB_extension ext;
154     krb5_data buf;
155     size_t size = 0;
156     int i;
157 
158     memset(&ext, 0, sizeof(ext));
159     ext.mandatory = FALSE;
160     ext.data.element = choice_HDB_extension_data_pkinit_acl;
161     ext.data.u.aliases.case_insensitive = 0;
162 
163     if (strings->num_strings == 1 && strings->strings[0][0] == '\0') {
164 	ext.data.u.pkinit_acl.val = NULL;
165 	ext.data.u.pkinit_acl.len = 0;
166     } else {
167 	ext.data.u.pkinit_acl.val =
168 	    calloc(strings->num_strings,
169 		   sizeof(ext.data.u.pkinit_acl.val[0]));
170 	ext.data.u.pkinit_acl.len = strings->num_strings;
171 
172 	for (i = 0; i < strings->num_strings; i++) {
173 	    ext.data.u.pkinit_acl.val[i].subject = estrdup(strings->strings[i]);
174 	}
175     }
176 
177     ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length,
178 		       &ext, &size, ret);
179     free_HDB_extension(&ext);
180     if (ret)
181 	abort();
182     if (buf.length != size)
183 	abort();
184 
185     add_tl(princ, KRB5_TL_EXTENSION, &buf);
186 }
187 
188 static int
189 do_mod_entry(krb5_principal principal, void *data)
190 {
191     krb5_error_code ret;
192     kadm5_principal_ent_rec princ;
193     int mask = 0;
194     struct modify_options *e = data;
195 
196     memset (&princ, 0, sizeof(princ));
197     ret = kadm5_get_principal(kadm_handle, principal, &princ,
198 			      KADM5_PRINCIPAL | KADM5_ATTRIBUTES |
199 			      KADM5_MAX_LIFE | KADM5_MAX_RLIFE |
200 			      KADM5_PRINC_EXPIRE_TIME |
201 			      KADM5_PW_EXPIRATION);
202     if(ret)
203 	return ret;
204 
205     if(e->max_ticket_life_string ||
206        e->max_renewable_life_string ||
207        e->expiration_time_string ||
208        e->pw_expiration_time_string ||
209        e->attributes_string ||
210        e->kvno_integer != -1 ||
211        e->constrained_delegation_strings.num_strings ||
212        e->alias_strings.num_strings ||
213        e->pkinit_acl_strings.num_strings) {
214 	ret = set_entry(context, &princ, &mask,
215 			e->max_ticket_life_string,
216 			e->max_renewable_life_string,
217 			e->expiration_time_string,
218 			e->pw_expiration_time_string,
219 			e->attributes_string);
220 	if(e->kvno_integer != -1) {
221 	    princ.kvno = e->kvno_integer;
222 	    mask |= KADM5_KVNO;
223 	}
224 	if (e->constrained_delegation_strings.num_strings) {
225 	    add_constrained_delegation(context, &princ,
226 				       &e->constrained_delegation_strings);
227 	    mask |= KADM5_TL_DATA;
228 	}
229 	if (e->alias_strings.num_strings) {
230 	    add_aliases(context, &princ, &e->alias_strings);
231 	    mask |= KADM5_TL_DATA;
232 	}
233 	if (e->pkinit_acl_strings.num_strings) {
234 	    add_pkinit_acl(context, &princ, &e->pkinit_acl_strings);
235 	    mask |= KADM5_TL_DATA;
236 	}
237 
238     } else
239 	ret = edit_entry(&princ, &mask, NULL, 0);
240     if(ret == 0) {
241 	ret = kadm5_modify_principal(kadm_handle, &princ, mask);
242 	if(ret)
243 	    krb5_warn(context, ret, "kadm5_modify_principal");
244     }
245 
246     kadm5_free_principal_ent(kadm_handle, &princ);
247     return ret;
248 }
249 
250 int
251 mod_entry(struct modify_options *opt, int argc, char **argv)
252 {
253     krb5_error_code ret = 0;
254     int i;
255 
256     for(i = 0; i < argc; i++) {
257 	ret = foreach_principal(argv[i], do_mod_entry, "mod", opt);
258 	if (ret)
259 	    break;
260     }
261     return ret != 0;
262 }
263 
264