315 lines
9.7 KiB
C
315 lines
9.7 KiB
C
/*
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* Copyright (c) 1997 - 2006 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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static kadm5_ret_t
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add_tl_data(kadm5_principal_ent_t ent, int16_t type,
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const void *data, size_t size)
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{
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krb5_tl_data *tl;
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tl = calloc(1, sizeof(*tl));
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if (tl == NULL)
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return _kadm5_error_code(ENOMEM);
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tl->tl_data_type = type;
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tl->tl_data_length = size;
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tl->tl_data_contents = malloc(size);
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if (tl->tl_data_contents == NULL && size != 0) {
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free(tl);
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return _kadm5_error_code(ENOMEM);
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}
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memcpy(tl->tl_data_contents, data, size);
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tl->tl_data_next = ent->tl_data;
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ent->tl_data = tl;
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ent->n_tl_data++;
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return 0;
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}
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KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
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_krb5_put_int(void *buffer, unsigned long value, size_t size); /* XXX */
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kadm5_ret_t
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kadm5_s_get_principal(void *server_handle,
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krb5_principal princ,
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kadm5_principal_ent_t out,
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uint32_t mask)
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{
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kadm5_server_context *context = server_handle;
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kadm5_ret_t ret;
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hdb_entry_ex ent;
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memset(&ent, 0, sizeof(ent));
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ret = context->db->hdb_open(context->context, context->db, O_RDONLY, 0);
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if(ret)
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return ret;
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ret = context->db->hdb_fetch_kvno(context->context, context->db, princ,
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HDB_F_DECRYPT|HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent);
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context->db->hdb_close(context->context, context->db);
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if(ret)
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return _kadm5_error_code(ret);
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memset(out, 0, sizeof(*out));
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if(mask & KADM5_PRINCIPAL)
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ret = krb5_copy_principal(context->context, ent.entry.principal,
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&out->principal);
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if(ret)
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goto out;
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if(mask & KADM5_PRINC_EXPIRE_TIME && ent.entry.valid_end)
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out->princ_expire_time = *ent.entry.valid_end;
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if(mask & KADM5_PW_EXPIRATION && ent.entry.pw_end)
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out->pw_expiration = *ent.entry.pw_end;
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if(mask & KADM5_LAST_PWD_CHANGE)
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hdb_entry_get_pw_change_time(&ent.entry, &out->last_pwd_change);
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if(mask & KADM5_ATTRIBUTES){
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out->attributes |= ent.entry.flags.postdate ? 0 : KRB5_KDB_DISALLOW_POSTDATED;
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out->attributes |= ent.entry.flags.forwardable ? 0 : KRB5_KDB_DISALLOW_FORWARDABLE;
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out->attributes |= ent.entry.flags.initial ? KRB5_KDB_DISALLOW_TGT_BASED : 0;
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out->attributes |= ent.entry.flags.renewable ? 0 : KRB5_KDB_DISALLOW_RENEWABLE;
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out->attributes |= ent.entry.flags.proxiable ? 0 : KRB5_KDB_DISALLOW_PROXIABLE;
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out->attributes |= ent.entry.flags.invalid ? KRB5_KDB_DISALLOW_ALL_TIX : 0;
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out->attributes |= ent.entry.flags.require_preauth ? KRB5_KDB_REQUIRES_PRE_AUTH : 0;
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out->attributes |= ent.entry.flags.server ? 0 : KRB5_KDB_DISALLOW_SVR;
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out->attributes |= ent.entry.flags.change_pw ? KRB5_KDB_PWCHANGE_SERVICE : 0;
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out->attributes |= ent.entry.flags.ok_as_delegate ? KRB5_KDB_OK_AS_DELEGATE : 0;
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out->attributes |= ent.entry.flags.trusted_for_delegation ? KRB5_KDB_TRUSTED_FOR_DELEGATION : 0;
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out->attributes |= ent.entry.flags.allow_kerberos4 ? KRB5_KDB_ALLOW_KERBEROS4 : 0;
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out->attributes |= ent.entry.flags.allow_digest ? KRB5_KDB_ALLOW_DIGEST : 0;
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}
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if(mask & KADM5_MAX_LIFE) {
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if(ent.entry.max_life)
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out->max_life = *ent.entry.max_life;
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else
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out->max_life = INT_MAX;
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}
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if(mask & KADM5_MOD_TIME) {
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if(ent.entry.modified_by)
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out->mod_date = ent.entry.modified_by->time;
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else
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out->mod_date = ent.entry.created_by.time;
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}
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if(mask & KADM5_MOD_NAME) {
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if(ent.entry.modified_by) {
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if (ent.entry.modified_by->principal != NULL)
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ret = krb5_copy_principal(context->context,
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ent.entry.modified_by->principal,
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&out->mod_name);
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} else if(ent.entry.created_by.principal != NULL)
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ret = krb5_copy_principal(context->context,
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ent.entry.created_by.principal,
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&out->mod_name);
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else
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out->mod_name = NULL;
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}
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if(ret)
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goto out;
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if(mask & KADM5_KVNO)
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out->kvno = ent.entry.kvno;
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if(mask & KADM5_MKVNO) {
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size_t n;
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out->mkvno = 0; /* XXX */
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for(n = 0; n < ent.entry.keys.len; n++)
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if(ent.entry.keys.val[n].mkvno) {
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out->mkvno = *ent.entry.keys.val[n].mkvno; /* XXX this isn't right */
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break;
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}
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}
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#if 0 /* XXX implement */
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if(mask & KADM5_AUX_ATTRIBUTES)
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;
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if(mask & KADM5_LAST_SUCCESS)
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;
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if(mask & KADM5_LAST_FAILED)
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;
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if(mask & KADM5_FAIL_AUTH_COUNT)
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;
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#endif
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if(mask & KADM5_POLICY)
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out->policy = NULL;
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if(mask & KADM5_MAX_RLIFE) {
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if(ent.entry.max_renew)
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out->max_renewable_life = *ent.entry.max_renew;
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else
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out->max_renewable_life = INT_MAX;
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}
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if(mask & KADM5_KEY_DATA){
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size_t i;
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Key *key;
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krb5_key_data *kd;
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krb5_salt salt;
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krb5_data *sp;
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krb5_get_pw_salt(context->context, ent.entry.principal, &salt);
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out->key_data = malloc(ent.entry.keys.len * sizeof(*out->key_data));
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if (out->key_data == NULL && ent.entry.keys.len != 0) {
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ret = ENOMEM;
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goto out;
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}
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for(i = 0; i < ent.entry.keys.len; i++){
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key = &ent.entry.keys.val[i];
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kd = &out->key_data[i];
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kd->key_data_ver = 2;
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kd->key_data_kvno = ent.entry.kvno;
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kd->key_data_type[0] = key->key.keytype;
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if(key->salt)
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kd->key_data_type[1] = key->salt->type;
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else
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kd->key_data_type[1] = KRB5_PADATA_PW_SALT;
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/* setup key */
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kd->key_data_length[0] = key->key.keyvalue.length;
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kd->key_data_contents[0] = malloc(kd->key_data_length[0]);
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if(kd->key_data_contents[0] == NULL && kd->key_data_length[0] != 0){
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ret = ENOMEM;
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break;
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}
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memcpy(kd->key_data_contents[0], key->key.keyvalue.data,
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kd->key_data_length[0]);
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/* setup salt */
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if(key->salt)
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sp = &key->salt->salt;
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else
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sp = &salt.saltvalue;
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kd->key_data_length[1] = sp->length;
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kd->key_data_contents[1] = malloc(kd->key_data_length[1]);
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if(kd->key_data_length[1] != 0
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&& kd->key_data_contents[1] == NULL) {
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memset(kd->key_data_contents[0], 0, kd->key_data_length[0]);
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ret = ENOMEM;
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break;
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}
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memcpy(kd->key_data_contents[1], sp->data, kd->key_data_length[1]);
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out->n_key_data = i + 1;
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}
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krb5_free_salt(context->context, salt);
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}
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if(ret){
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kadm5_free_principal_ent(context, out);
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goto out;
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}
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if(mask & KADM5_TL_DATA) {
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time_t last_pw_expire;
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const HDB_Ext_PKINIT_acl *acl;
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const HDB_Ext_Aliases *aliases;
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ret = hdb_entry_get_pw_change_time(&ent.entry, &last_pw_expire);
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if (ret == 0 && last_pw_expire) {
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unsigned char buf[4];
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_krb5_put_int(buf, last_pw_expire, sizeof(buf));
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ret = add_tl_data(out, KRB5_TL_LAST_PWD_CHANGE, buf, sizeof(buf));
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if (ret)
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goto out;
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}
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if(ret){
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kadm5_free_principal_ent(context, out);
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goto out;
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}
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/*
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* If the client was allowed to get key data, let it have the
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* password too.
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*/
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if(mask & KADM5_KEY_DATA) {
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heim_utf8_string pw;
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ret = hdb_entry_get_password(context->context,
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context->db, &ent.entry, &pw);
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if (ret == 0) {
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(void) add_tl_data(out, KRB5_TL_PASSWORD, pw, strlen(pw) + 1);
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free(pw);
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}
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krb5_clear_error_message(context->context);
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}
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ret = hdb_entry_get_pkinit_acl(&ent.entry, &acl);
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if (ret == 0 && acl) {
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krb5_data buf;
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size_t len;
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ASN1_MALLOC_ENCODE(HDB_Ext_PKINIT_acl, buf.data, buf.length,
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acl, &len, ret);
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if (ret) {
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kadm5_free_principal_ent(context, out);
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goto out;
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}
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if (len != buf.length)
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krb5_abortx(context->context,
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"internal ASN.1 encoder error");
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ret = add_tl_data(out, KRB5_TL_PKINIT_ACL, buf.data, buf.length);
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free(buf.data);
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if (ret) {
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kadm5_free_principal_ent(context, out);
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goto out;
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}
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}
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if(ret){
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kadm5_free_principal_ent(context, out);
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goto out;
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}
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ret = hdb_entry_get_aliases(&ent.entry, &aliases);
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if (ret == 0 && aliases) {
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krb5_data buf;
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size_t len;
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ASN1_MALLOC_ENCODE(HDB_Ext_Aliases, buf.data, buf.length,
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aliases, &len, ret);
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if (ret) {
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kadm5_free_principal_ent(context, out);
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goto out;
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}
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if (len != buf.length)
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krb5_abortx(context->context,
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"internal ASN.1 encoder error");
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ret = add_tl_data(out, KRB5_TL_ALIASES, buf.data, buf.length);
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free(buf.data);
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if (ret) {
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kadm5_free_principal_ent(context, out);
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goto out;
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}
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}
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if(ret){
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kadm5_free_principal_ent(context, out);
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goto out;
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}
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}
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out:
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hdb_free_entry(context->context, &ent);
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return _kadm5_error_code(ret);
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}
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