412 lines
13 KiB
C
412 lines
13 KiB
C
/*
|
|
* 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 <krb5_locl.h>
|
|
#include "kadm5_locl.h"
|
|
#include <assert.h>
|
|
|
|
RCSID("$Id$");
|
|
|
|
static kadm5_ret_t
|
|
add_tl_data(kadm5_principal_ent_t ent, int16_t type,
|
|
const void *data, size_t size)
|
|
{
|
|
krb5_tl_data *tl;
|
|
|
|
tl = calloc(1, sizeof(*tl));
|
|
if (tl == NULL)
|
|
return _kadm5_error_code(ENOMEM);
|
|
|
|
tl->tl_data_type = type;
|
|
tl->tl_data_length = size;
|
|
tl->tl_data_contents = malloc(size);
|
|
if (tl->tl_data_contents == NULL && size != 0) {
|
|
free(tl);
|
|
return _kadm5_error_code(ENOMEM);
|
|
}
|
|
memcpy(tl->tl_data_contents, data, size);
|
|
|
|
tl->tl_data_next = ent->tl_data;
|
|
ent->tl_data = tl;
|
|
ent->n_tl_data++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static
|
|
krb5_error_code
|
|
copy_keyset_to_kadm5(kadm5_server_context *context, krb5_kvno kvno,
|
|
size_t n_keys, Key *keys, krb5_salt *salt,
|
|
kadm5_principal_ent_t out)
|
|
{
|
|
size_t i;
|
|
Key *key;
|
|
krb5_key_data *kd;
|
|
krb5_data *sp;
|
|
krb5_error_code ret = 0;
|
|
|
|
for (i = 0; i < n_keys; i++) {
|
|
key = &keys[i];
|
|
kd = &out->key_data[out->n_key_data];
|
|
kd->key_data_ver = 2;
|
|
kd->key_data_kvno = kvno;
|
|
kd->key_data_type[0] = key->key.keytype;
|
|
if(key->salt)
|
|
kd->key_data_type[1] = key->salt->type;
|
|
else
|
|
kd->key_data_type[1] = KRB5_PADATA_PW_SALT;
|
|
/* setup key */
|
|
kd->key_data_length[0] = key->key.keyvalue.length;
|
|
kd->key_data_contents[0] = malloc(kd->key_data_length[0]);
|
|
if(kd->key_data_contents[0] == NULL && kd->key_data_length[0] != 0){
|
|
ret = krb5_enomem(context->context);
|
|
break;
|
|
}
|
|
memcpy(kd->key_data_contents[0], key->key.keyvalue.data,
|
|
kd->key_data_length[0]);
|
|
/* setup salt */
|
|
if(key->salt)
|
|
sp = &key->salt->salt;
|
|
else
|
|
sp = &salt->saltvalue;
|
|
kd->key_data_length[1] = sp->length;
|
|
kd->key_data_contents[1] = malloc(kd->key_data_length[1]);
|
|
if(kd->key_data_length[1] != 0
|
|
&& kd->key_data_contents[1] == NULL) {
|
|
memset(kd->key_data_contents[0], 0, kd->key_data_length[0]);
|
|
ret = krb5_enomem(context->context);
|
|
break;
|
|
}
|
|
memcpy(kd->key_data_contents[1], sp->data, kd->key_data_length[1]);
|
|
out->n_key_data++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
kadm5_ret_t
|
|
kadm5_s_get_principal(void *server_handle,
|
|
krb5_principal princ,
|
|
kadm5_principal_ent_t out,
|
|
uint32_t mask)
|
|
{
|
|
kadm5_server_context *context = server_handle;
|
|
kadm5_ret_t ret;
|
|
hdb_entry ent;
|
|
unsigned int flags = HDB_F_GET_ANY | HDB_F_ADMIN_DATA;
|
|
|
|
if ((mask & KADM5_KEY_DATA) || (mask & KADM5_KVNO))
|
|
flags |= HDB_F_ALL_KVNOS | HDB_F_DECRYPT;
|
|
|
|
memset(&ent, 0, sizeof(ent));
|
|
memset(out, 0, sizeof(*out));
|
|
|
|
if (!context->keep_open) {
|
|
ret = context->db->hdb_open(context->context, context->db, O_RDONLY, 0);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* We may want to attempt to recover the log on read operations, but we
|
|
* because the HDB/log lock order is reversed on slaves, in order to avoid
|
|
* lock contention from kadm5srv apps we need to make sure that the the HDB
|
|
* open for read-write is optimistic and attempts only a non-blocking lock,
|
|
* and if it doesn't get it then it should fallback to read-only. But we
|
|
* don't have that option in the hdb_open() interface at this time.
|
|
*
|
|
* For now we won't attempt to recover the log.
|
|
*/
|
|
|
|
ret = hdb_fetch_kvno(context->context, context->db, princ, flags,
|
|
0 /*timestamp*/, 0/*etype*/, 0/*kvno*/, &ent);
|
|
|
|
if (!context->keep_open)
|
|
context->db->hdb_close(context->context, context->db);
|
|
if(ret)
|
|
return _kadm5_error_code(ret);
|
|
|
|
if(mask & KADM5_PRINCIPAL)
|
|
ret = krb5_copy_principal(context->context, ent.principal,
|
|
&out->principal);
|
|
if(ret)
|
|
goto out;
|
|
if(mask & KADM5_PRINC_EXPIRE_TIME && ent.valid_end)
|
|
out->princ_expire_time = *ent.valid_end;
|
|
if(mask & KADM5_PW_EXPIRATION && ent.pw_end)
|
|
out->pw_expiration = *ent.pw_end;
|
|
if(mask & KADM5_LAST_PWD_CHANGE)
|
|
hdb_entry_get_pw_change_time(&ent, &out->last_pwd_change);
|
|
if(mask & KADM5_ATTRIBUTES){
|
|
out->attributes |= ent.flags.postdate ? 0 : KRB5_KDB_DISALLOW_POSTDATED;
|
|
out->attributes |= ent.flags.forwardable ? 0 : KRB5_KDB_DISALLOW_FORWARDABLE;
|
|
out->attributes |= ent.flags.initial ? KRB5_KDB_DISALLOW_TGT_BASED : 0;
|
|
out->attributes |= ent.flags.renewable ? 0 : KRB5_KDB_DISALLOW_RENEWABLE;
|
|
out->attributes |= ent.flags.proxiable ? 0 : KRB5_KDB_DISALLOW_PROXIABLE;
|
|
out->attributes |= ent.flags.invalid ? KRB5_KDB_DISALLOW_ALL_TIX : 0;
|
|
out->attributes |= ent.flags.require_preauth ? KRB5_KDB_REQUIRES_PRE_AUTH : 0;
|
|
out->attributes |= ent.flags.require_pwchange ? KRB5_KDB_REQUIRES_PWCHANGE : 0;
|
|
out->attributes |= ent.flags.client ? 0 : KRB5_KDB_DISALLOW_CLIENT;
|
|
out->attributes |= ent.flags.server ? 0 : KRB5_KDB_DISALLOW_SVR;
|
|
out->attributes |= ent.flags.change_pw ? KRB5_KDB_PWCHANGE_SERVICE : 0;
|
|
out->attributes |= ent.flags.ok_as_delegate ? KRB5_KDB_OK_AS_DELEGATE : 0;
|
|
out->attributes |= ent.flags.trusted_for_delegation ? KRB5_KDB_TRUSTED_FOR_DELEGATION : 0;
|
|
out->attributes |= ent.flags.allow_kerberos4 ? KRB5_KDB_ALLOW_KERBEROS4 : 0;
|
|
out->attributes |= ent.flags.allow_digest ? KRB5_KDB_ALLOW_DIGEST : 0;
|
|
out->attributes |= ent.flags.virtual_keys ? KRB5_KDB_VIRTUAL_KEYS : 0;
|
|
out->attributes |= ent.flags.virtual ? KRB5_KDB_VIRTUAL : 0;
|
|
out->attributes |= ent.flags.no_auth_data_reqd ? KRB5_KDB_NO_AUTH_DATA_REQUIRED : 0;
|
|
}
|
|
if(mask & KADM5_MAX_LIFE) {
|
|
if(ent.max_life)
|
|
out->max_life = *ent.max_life;
|
|
else
|
|
out->max_life = INT_MAX;
|
|
}
|
|
if(mask & KADM5_MOD_TIME) {
|
|
if(ent.modified_by)
|
|
out->mod_date = ent.modified_by->time;
|
|
else
|
|
out->mod_date = ent.created_by.time;
|
|
}
|
|
if(mask & KADM5_MOD_NAME) {
|
|
if(ent.modified_by) {
|
|
if (ent.modified_by->principal != NULL)
|
|
ret = krb5_copy_principal(context->context,
|
|
ent.modified_by->principal,
|
|
&out->mod_name);
|
|
} else if(ent.created_by.principal != NULL)
|
|
ret = krb5_copy_principal(context->context,
|
|
ent.created_by.principal,
|
|
&out->mod_name);
|
|
else
|
|
out->mod_name = NULL;
|
|
}
|
|
if(ret)
|
|
goto out;
|
|
|
|
if(mask & KADM5_KVNO)
|
|
out->kvno = ent.kvno;
|
|
if(mask & KADM5_MKVNO) {
|
|
size_t n;
|
|
out->mkvno = 0; /* XXX */
|
|
for(n = 0; n < ent.keys.len; n++)
|
|
if(ent.keys.val[n].mkvno) {
|
|
out->mkvno = *ent.keys.val[n].mkvno; /* XXX this isn't right */
|
|
break;
|
|
}
|
|
}
|
|
#if 0 /* XXX implement */
|
|
if(mask & KADM5_AUX_ATTRIBUTES)
|
|
;
|
|
if(mask & KADM5_LAST_SUCCESS)
|
|
;
|
|
if(mask & KADM5_LAST_FAILED)
|
|
;
|
|
if(mask & KADM5_FAIL_AUTH_COUNT)
|
|
;
|
|
#endif
|
|
if(mask & KADM5_POLICY) {
|
|
HDB_extension *ext;
|
|
|
|
ext = hdb_find_extension(&ent, choice_HDB_extension_data_policy);
|
|
if (ext == NULL) {
|
|
out->policy = strdup("default");
|
|
/* It's OK if we retun NULL instead of "default" */
|
|
} else {
|
|
out->policy = strdup(ext->data.u.policy);
|
|
if (out->policy == NULL) {
|
|
ret = krb5_enomem(context->context);
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
if(mask & KADM5_MAX_RLIFE) {
|
|
if(ent.max_renew)
|
|
out->max_renewable_life = *ent.max_renew;
|
|
else
|
|
out->max_renewable_life = INT_MAX;
|
|
}
|
|
if(mask & KADM5_KEY_DATA){
|
|
size_t i;
|
|
size_t n_keys = ent.keys.len;
|
|
krb5_salt salt;
|
|
HDB_extension *ext;
|
|
HDB_Ext_KeySet *hist_keys = NULL;
|
|
|
|
/* Don't return stale keys to kadm5 clients */
|
|
ret = hdb_prune_keys(context->context, &ent);
|
|
if (ret)
|
|
goto out;
|
|
ext = hdb_find_extension(&ent, choice_HDB_extension_data_hist_keys);
|
|
if (ext != NULL)
|
|
hist_keys = &ext->data.u.hist_keys;
|
|
|
|
krb5_get_pw_salt(context->context, ent.principal, &salt);
|
|
for (i = 0; hist_keys != NULL && i < hist_keys->len; i++)
|
|
n_keys += hist_keys->val[i].keys.len;
|
|
out->key_data = malloc(n_keys * sizeof(*out->key_data));
|
|
if (out->key_data == NULL && n_keys != 0) {
|
|
ret = krb5_enomem(context->context);
|
|
goto out;
|
|
}
|
|
out->n_key_data = 0;
|
|
ret = copy_keyset_to_kadm5(context, ent.kvno, ent.keys.len,
|
|
ent.keys.val, &salt, out);
|
|
if (ret)
|
|
goto out;
|
|
for (i = 0; hist_keys != NULL && i < hist_keys->len; i++) {
|
|
ret = copy_keyset_to_kadm5(context, hist_keys->val[i].kvno,
|
|
hist_keys->val[i].keys.len,
|
|
hist_keys->val[i].keys.val,
|
|
&salt, out);
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
krb5_free_salt(context->context, salt);
|
|
assert( out->n_key_data == n_keys );
|
|
}
|
|
assert(ret == 0);
|
|
if(mask & KADM5_TL_DATA) {
|
|
time_t last_pw_expire;
|
|
const HDB_Ext_PKINIT_acl *acl;
|
|
const HDB_Ext_Aliases *aliases;
|
|
const HDB_Ext_KeyRotation *kr;
|
|
heim_octet_string krb5_config;
|
|
|
|
if (ent.etypes) {
|
|
krb5_data buf;
|
|
size_t len;
|
|
|
|
ASN1_MALLOC_ENCODE(HDB_EncTypeList, buf.data, buf.length,
|
|
ent.etypes, &len, ret);
|
|
if (ret == 0) {
|
|
ret = add_tl_data(out, KRB5_TL_ETYPES, buf.data, buf.length);
|
|
free(buf.data);
|
|
}
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
|
|
ret = hdb_entry_get_pw_change_time(&ent, &last_pw_expire);
|
|
if (ret == 0 && last_pw_expire) {
|
|
unsigned char buf[4];
|
|
_krb5_put_int(buf, last_pw_expire, sizeof(buf));
|
|
ret = add_tl_data(out, KRB5_TL_LAST_PWD_CHANGE, buf, sizeof(buf));
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
|
|
ret = hdb_entry_get_krb5_config(&ent, &krb5_config);
|
|
if (ret == 0 && krb5_config.length) {
|
|
ret = add_tl_data(out, KRB5_TL_KRB5_CONFIG, krb5_config.data,
|
|
krb5_config.length);
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
/*
|
|
* If the client was allowed to get key data, let it have the
|
|
* password too.
|
|
*/
|
|
if (mask & KADM5_KEY_DATA) {
|
|
heim_utf8_string pw;
|
|
|
|
/* XXX But not if the client doesn't have ext-keys */
|
|
ret = hdb_entry_get_password(context->context,
|
|
context->db, &ent, &pw);
|
|
if (ret == 0) {
|
|
ret = add_tl_data(out, KRB5_TL_PASSWORD, pw, strlen(pw) + 1);
|
|
free(pw);
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
krb5_clear_error_message(context->context);
|
|
}
|
|
|
|
ret = hdb_entry_get_pkinit_acl(&ent, &acl);
|
|
if (ret == 0 && acl) {
|
|
krb5_data buf;
|
|
size_t len;
|
|
|
|
ASN1_MALLOC_ENCODE(HDB_Ext_PKINIT_acl, buf.data, buf.length,
|
|
acl, &len, ret);
|
|
if (ret)
|
|
goto out;
|
|
if (len != buf.length)
|
|
krb5_abortx(context->context,
|
|
"internal ASN.1 encoder error");
|
|
ret = add_tl_data(out, KRB5_TL_PKINIT_ACL, buf.data, buf.length);
|
|
free(buf.data);
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
|
|
ret = hdb_entry_get_aliases(&ent, &aliases);
|
|
if (ret == 0 && aliases) {
|
|
krb5_data buf;
|
|
size_t len;
|
|
|
|
ASN1_MALLOC_ENCODE(HDB_Ext_Aliases, buf.data, buf.length,
|
|
aliases, &len, ret);
|
|
if (ret)
|
|
goto out;
|
|
if (len != buf.length)
|
|
krb5_abortx(context->context,
|
|
"internal ASN.1 encoder error");
|
|
ret = add_tl_data(out, KRB5_TL_ALIASES, buf.data, buf.length);
|
|
free(buf.data);
|
|
if (ret)
|
|
goto out;
|
|
}
|
|
|
|
ret = hdb_entry_get_key_rotation(context->context, &ent, &kr);
|
|
if (ret == 0 && kr) {
|
|
krb5_data buf;
|
|
size_t len;
|
|
|
|
ASN1_MALLOC_ENCODE(HDB_Ext_KeyRotation, buf.data, buf.length,
|
|
kr, &len, ret);
|
|
if (ret == 0)
|
|
ret = add_tl_data(out, KRB5_TL_KEY_ROTATION, buf.data, buf.length);
|
|
free(buf.data);
|
|
}
|
|
}
|
|
|
|
out:
|
|
if (ret)
|
|
kadm5_free_principal_ent(context, out);
|
|
hdb_free_entry(context->context, context->db, &ent);
|
|
|
|
return _kadm5_error_code(ret);
|
|
}
|