kadmin/mod.c

   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 = type;
  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 void
 189 add_kvno_diff(krb5_context contextp, kadm5_principal_ent_rec *princ,
 190               int is_svc_diff, krb5_kvno kvno_diff)
 191 {
 192     krb5_error_code ret;
 193     HDB_extension ext;
 194     krb5_data buf;
 195     size_t size = 0;
 196
 197     if (kvno_diff < 0)
 198         return;
 199     if (kvno_diff > 2048)
 200         kvno_diff = 2048;
 201
 202     if (is_svc_diff) {
 203         ext.data.element = choice_HDB_extension_data_hist_kvno_diff_svc;
 204         ext.data.u.hist_kvno_diff_svc = (unsigned int)kvno_diff;
 205     } else {
 206         ext.data.element = choice_HDB_extension_data_hist_kvno_diff_clnt;
 207         ext.data.u.hist_kvno_diff_clnt = (unsigned int)kvno_diff;
 208     }
 209     ASN1_MALLOC_ENCODE(HDB_extension, buf.data, buf.length,
 210                        &ext, &size, ret);
 211     if (ret)
 212         abort();
 213     if (buf.length != size)
 214         abort();
 215
 216     add_tl(princ, KRB5_TL_EXTENSION, &buf);
 217 }
 218
 219 static int
 220 do_mod_entry(krb5_principal principal, void *data)
 221 {
 222     krb5_error_code ret;
 223     kadm5_principal_ent_rec princ;
 224     int mask = 0;
 225     struct modify_options *e = data;
 226
 227     memset (&princ, 0, sizeof(princ));
 228     ret = kadm5_get_principal(kadm_handle, principal, &princ,
 229                               KADM5_PRINCIPAL | KADM5_ATTRIBUTES |
 230                               KADM5_MAX_LIFE | KADM5_MAX_RLIFE |
 231                               KADM5_PRINC_EXPIRE_TIME |
 232                               KADM5_PW_EXPIRATION);
 233     if(ret)
 234         return ret;
 235
 236     if(e->max_ticket_life_string ||
 237        e->max_renewable_life_string ||
 238        e->expiration_time_string ||
 239        e->pw_expiration_time_string ||
 240        e->attributes_string ||
 241        e->policy_string ||
 242        e->kvno_integer != -1 ||
 243        e->constrained_delegation_strings.num_strings ||
 244        e->alias_strings.num_strings ||
 245        e->pkinit_acl_strings.num_strings ||
 246        e->hist_kvno_diff_clnt_integer != -1 ||
 247        e->hist_kvno_diff_svc_integer != -1) {
 248         ret = set_entry(context, &princ, &mask,
 249                         e->max_ticket_life_string,
 250                         e->max_renewable_life_string,
 251                         e->expiration_time_string,
 252                         e->pw_expiration_time_string,
 253                         e->attributes_string,
 254                         e->policy_string);
 255         if(e->kvno_integer != -1) {
 256             princ.kvno = e->kvno_integer;
 257             mask |= KADM5_KVNO;
 258         }
 259         if (e->constrained_delegation_strings.num_strings) {
 260             add_constrained_delegation(context, &princ,
 261                                        &e->constrained_delegation_strings);
 262             mask |= KADM5_TL_DATA;
 263         }
 264         if (e->alias_strings.num_strings) {
 265             add_aliases(context, &princ, &e->alias_strings);
 266             mask |= KADM5_TL_DATA;
 267         }
 268         if (e->pkinit_acl_strings.num_strings) {
 269             add_pkinit_acl(context, &princ, &e->pkinit_acl_strings);
 270             mask |= KADM5_TL_DATA;
 271         }
 272         if (e->hist_kvno_diff_clnt_integer != -1) {
 273             add_kvno_diff(context, &princ, 0, e->hist_kvno_diff_clnt_integer);
 274             mask |= KADM5_TL_DATA;
 275         }
 276         if (e->hist_kvno_diff_svc_integer != -1) {
 277             add_kvno_diff(context, &princ, 1, e->hist_kvno_diff_clnt_integer);
 278             mask |= KADM5_TL_DATA;
 279         }
 280     } else
 281         ret = edit_entry(&princ, &mask, NULL, 0);
 282     if(ret == 0) {
 283         ret = kadm5_modify_principal(kadm_handle, &princ, mask);
 284         if(ret)
 285             krb5_warn(context, ret, "kadm5_modify_principal");
 286     }
 287
 288     kadm5_free_principal_ent(kadm_handle, &princ);
 289     return ret;
 290 }
 291
 292 int
 293 mod_entry(struct modify_options *opt, int argc, char **argv)
 294 {
 295     krb5_error_code ret = 0;
 296     int i;
 297
 298     for(i = 0; i < argc; i++) {
 299         ret = foreach_principal(argv[i], do_mod_entry, "mod", opt);
 300         if (ret)
 301             break;
 302     }
 303     return ret != 0;
 304 }
 305