several new kerberos related libraries and applications to FreeBSD: o kgetcred(1) allows one to manually get a ticket for a particular service. o kf(1) securily forwards ticket to another host through an authenticated and encrypted stream. o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1) and other user kerberos operations. klist and kswitch are just symlinks to kcc(1) now. o kswitch(1) allows you to easily switch between kerberos credentials if you're running KCM. o hxtool(1) is a certificate management tool to use with PKINIT. o string2key(1) maps a password into key. o kdigest(8) is a userland tool to access the KDC's digest interface. o kimpersonate(8) creates a "fake" ticket for a service. We also now install manpages for some lirbaries that were not installed before, libheimntlm and libhx509. - The new HEIMDAL version no longer supports Kerberos 4. All users are recommended to switch to Kerberos 5. - Weak ciphers are now disabled by default. To enable DES support (used by telnet(8)), use "allow_weak_crypto" option in krb5.conf. - libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings disabled due to the function they use (krb5_get_err_text(3)) being deprecated. I plan to work on this next. - Heimdal's KDC now require sqlite to operate. We use the bundled version and install it as libheimsqlite. If some other FreeBSD components will require it in the future we can rename it to libbsdsqlite and use for these components as well. - This is not a latest Heimdal version, the new one was released while I was working on the update. I will update it to 1.5.2 soon, as it fixes some important bugs and security issues.
1058 lines
25 KiB
C
1058 lines
25 KiB
C
/*
|
||
* Copyright (c) 1997 - 2007 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 "kadm5_locl.h"
|
||
#include "heim_threads.h"
|
||
|
||
RCSID("$Id$");
|
||
|
||
/*
|
||
* A log record consists of:
|
||
*
|
||
* version number 4 bytes
|
||
* time in seconds 4 bytes
|
||
* operation (enum kadm_ops) 4 bytes
|
||
* length of record 4 bytes
|
||
* data... n bytes
|
||
* length of record 4 bytes
|
||
* version number 4 bytes
|
||
*
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_get_version_fd (int fd,
|
||
uint32_t *ver)
|
||
{
|
||
int ret;
|
||
krb5_storage *sp;
|
||
int32_t old_version;
|
||
|
||
ret = lseek (fd, 0, SEEK_END);
|
||
if(ret < 0)
|
||
return errno;
|
||
if(ret == 0) {
|
||
*ver = 0;
|
||
return 0;
|
||
}
|
||
sp = krb5_storage_from_fd (fd);
|
||
krb5_storage_seek(sp, -4, SEEK_CUR);
|
||
krb5_ret_int32 (sp, &old_version);
|
||
*ver = old_version;
|
||
krb5_storage_free(sp);
|
||
lseek (fd, 0, SEEK_END);
|
||
return 0;
|
||
}
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_get_version (kadm5_server_context *context, uint32_t *ver)
|
||
{
|
||
return kadm5_log_get_version_fd (context->log_context.log_fd, ver);
|
||
}
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_set_version (kadm5_server_context *context, uint32_t vno)
|
||
{
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
|
||
log_context->version = vno;
|
||
return 0;
|
||
}
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_init (kadm5_server_context *context)
|
||
{
|
||
int fd;
|
||
kadm5_ret_t ret;
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
|
||
if (log_context->log_fd != -1)
|
||
return 0;
|
||
fd = open (log_context->log_file, O_RDWR | O_CREAT, 0600);
|
||
if (fd < 0) {
|
||
ret = errno;
|
||
krb5_set_error_message(context->context, ret, "kadm5_log_init: open %s",
|
||
log_context->log_file);
|
||
return ret;
|
||
}
|
||
if (flock (fd, LOCK_EX) < 0) {
|
||
ret = errno;
|
||
krb5_set_error_message(context->context, ret, "kadm5_log_init: flock %s",
|
||
log_context->log_file);
|
||
close (fd);
|
||
return errno;
|
||
}
|
||
|
||
ret = kadm5_log_get_version_fd (fd, &log_context->version);
|
||
if (ret)
|
||
return ret;
|
||
|
||
log_context->log_fd = fd;
|
||
return 0;
|
||
}
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_reinit (kadm5_server_context *context)
|
||
{
|
||
int fd;
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
|
||
if (log_context->log_fd != -1) {
|
||
flock (log_context->log_fd, LOCK_UN);
|
||
close (log_context->log_fd);
|
||
log_context->log_fd = -1;
|
||
}
|
||
fd = open (log_context->log_file, O_RDWR | O_CREAT | O_TRUNC, 0600);
|
||
if (fd < 0)
|
||
return errno;
|
||
if (flock (fd, LOCK_EX) < 0) {
|
||
close (fd);
|
||
return errno;
|
||
}
|
||
|
||
log_context->version = 0;
|
||
log_context->log_fd = fd;
|
||
return 0;
|
||
}
|
||
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_end (kadm5_server_context *context)
|
||
{
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
int fd = log_context->log_fd;
|
||
|
||
flock (fd, LOCK_UN);
|
||
close(fd);
|
||
log_context->log_fd = -1;
|
||
return 0;
|
||
}
|
||
|
||
static kadm5_ret_t
|
||
kadm5_log_preamble (kadm5_server_context *context,
|
||
krb5_storage *sp,
|
||
enum kadm_ops op)
|
||
{
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
kadm5_ret_t kadm_ret;
|
||
|
||
kadm_ret = kadm5_log_init (context);
|
||
if (kadm_ret)
|
||
return kadm_ret;
|
||
|
||
krb5_store_int32 (sp, ++log_context->version);
|
||
krb5_store_int32 (sp, time(NULL));
|
||
krb5_store_int32 (sp, op);
|
||
return 0;
|
||
}
|
||
|
||
static kadm5_ret_t
|
||
kadm5_log_postamble (kadm5_log_context *context,
|
||
krb5_storage *sp)
|
||
{
|
||
krb5_store_int32 (sp, context->version);
|
||
return 0;
|
||
}
|
||
|
||
/*
|
||
* flush the log record in `sp'.
|
||
*/
|
||
|
||
static kadm5_ret_t
|
||
kadm5_log_flush (kadm5_log_context *log_context,
|
||
krb5_storage *sp)
|
||
{
|
||
krb5_data data;
|
||
size_t len;
|
||
ssize_t ret;
|
||
|
||
krb5_storage_to_data(sp, &data);
|
||
len = data.length;
|
||
ret = write (log_context->log_fd, data.data, len);
|
||
if (ret < 0 || (size_t)ret != len) {
|
||
krb5_data_free(&data);
|
||
return errno;
|
||
}
|
||
if (fsync (log_context->log_fd) < 0) {
|
||
krb5_data_free(&data);
|
||
return errno;
|
||
}
|
||
|
||
/*
|
||
* Try to send a signal to any running `ipropd-master'
|
||
*/
|
||
#ifndef NO_UNIX_SOCKETS
|
||
sendto (log_context->socket_fd,
|
||
(void *)&log_context->version,
|
||
sizeof(log_context->version),
|
||
0,
|
||
(struct sockaddr *)&log_context->socket_name,
|
||
sizeof(log_context->socket_name));
|
||
#else
|
||
sendto (log_context->socket_fd,
|
||
(void *)&log_context->version,
|
||
sizeof(log_context->version),
|
||
0,
|
||
log_context->socket_info->ai_addr,
|
||
log_context->socket_info->ai_addrlen);
|
||
#endif
|
||
|
||
krb5_data_free(&data);
|
||
return 0;
|
||
}
|
||
|
||
/*
|
||
* Add a `create' operation to the log.
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_create (kadm5_server_context *context,
|
||
hdb_entry *ent)
|
||
{
|
||
krb5_storage *sp;
|
||
kadm5_ret_t ret;
|
||
krb5_data value;
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
|
||
sp = krb5_storage_emem();
|
||
ret = hdb_entry2value (context->context, ent, &value);
|
||
if (ret) {
|
||
krb5_storage_free(sp);
|
||
return ret;
|
||
}
|
||
ret = kadm5_log_preamble (context, sp, kadm_create);
|
||
if (ret) {
|
||
krb5_data_free (&value);
|
||
krb5_storage_free(sp);
|
||
return ret;
|
||
}
|
||
krb5_store_int32 (sp, value.length);
|
||
krb5_storage_write(sp, value.data, value.length);
|
||
krb5_store_int32 (sp, value.length);
|
||
krb5_data_free (&value);
|
||
ret = kadm5_log_postamble (log_context, sp);
|
||
if (ret) {
|
||
krb5_storage_free (sp);
|
||
return ret;
|
||
}
|
||
ret = kadm5_log_flush (log_context, sp);
|
||
krb5_storage_free (sp);
|
||
if (ret)
|
||
return ret;
|
||
ret = kadm5_log_end (context);
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Read the data of a create log record from `sp' and change the
|
||
* database.
|
||
*/
|
||
|
||
static kadm5_ret_t
|
||
kadm5_log_replay_create (kadm5_server_context *context,
|
||
uint32_t ver,
|
||
uint32_t len,
|
||
krb5_storage *sp)
|
||
{
|
||
krb5_error_code ret;
|
||
krb5_data data;
|
||
hdb_entry_ex ent;
|
||
|
||
memset(&ent, 0, sizeof(ent));
|
||
|
||
ret = krb5_data_alloc (&data, len);
|
||
if (ret) {
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
return ret;
|
||
}
|
||
krb5_storage_read (sp, data.data, len);
|
||
ret = hdb_value2entry (context->context, &data, &ent.entry);
|
||
krb5_data_free(&data);
|
||
if (ret) {
|
||
krb5_set_error_message(context->context, ret,
|
||
"Unmarshaling hdb entry failed");
|
||
return ret;
|
||
}
|
||
ret = context->db->hdb_store(context->context, context->db, 0, &ent);
|
||
hdb_free_entry (context->context, &ent);
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Add a `delete' operation to the log.
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_delete (kadm5_server_context *context,
|
||
krb5_principal princ)
|
||
{
|
||
krb5_storage *sp;
|
||
kadm5_ret_t ret;
|
||
off_t off;
|
||
off_t len;
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
|
||
sp = krb5_storage_emem();
|
||
if (sp == NULL)
|
||
return ENOMEM;
|
||
ret = kadm5_log_preamble (context, sp, kadm_delete);
|
||
if (ret)
|
||
goto out;
|
||
ret = krb5_store_int32 (sp, 0);
|
||
if (ret)
|
||
goto out;
|
||
off = krb5_storage_seek (sp, 0, SEEK_CUR);
|
||
ret = krb5_store_principal (sp, princ);
|
||
if (ret)
|
||
goto out;
|
||
len = krb5_storage_seek (sp, 0, SEEK_CUR) - off;
|
||
krb5_storage_seek(sp, -(len + 4), SEEK_CUR);
|
||
ret = krb5_store_int32 (sp, len);
|
||
if (ret)
|
||
goto out;
|
||
krb5_storage_seek(sp, len, SEEK_CUR);
|
||
ret = krb5_store_int32 (sp, len);
|
||
if (ret)
|
||
goto out;
|
||
ret = kadm5_log_postamble (log_context, sp);
|
||
if (ret)
|
||
goto out;
|
||
ret = kadm5_log_flush (log_context, sp);
|
||
if (ret)
|
||
goto out;
|
||
ret = kadm5_log_end (context);
|
||
out:
|
||
krb5_storage_free (sp);
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Read a `delete' log operation from `sp' and apply it.
|
||
*/
|
||
|
||
static kadm5_ret_t
|
||
kadm5_log_replay_delete (kadm5_server_context *context,
|
||
uint32_t ver,
|
||
uint32_t len,
|
||
krb5_storage *sp)
|
||
{
|
||
krb5_error_code ret;
|
||
krb5_principal principal;
|
||
|
||
ret = krb5_ret_principal (sp, &principal);
|
||
if (ret) {
|
||
krb5_set_error_message(context->context, ret, "Failed to read deleted "
|
||
"principal from log version: %ld", (long)ver);
|
||
return ret;
|
||
}
|
||
|
||
ret = context->db->hdb_remove(context->context, context->db, principal);
|
||
krb5_free_principal (context->context, principal);
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Add a `rename' operation to the log.
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_rename (kadm5_server_context *context,
|
||
krb5_principal source,
|
||
hdb_entry *ent)
|
||
{
|
||
krb5_storage *sp;
|
||
kadm5_ret_t ret;
|
||
off_t off;
|
||
off_t len;
|
||
krb5_data value;
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
|
||
krb5_data_zero(&value);
|
||
|
||
sp = krb5_storage_emem();
|
||
ret = hdb_entry2value (context->context, ent, &value);
|
||
if (ret)
|
||
goto failed;
|
||
|
||
ret = kadm5_log_preamble (context, sp, kadm_rename);
|
||
if (ret)
|
||
goto failed;
|
||
|
||
ret = krb5_store_int32 (sp, 0);
|
||
if (ret)
|
||
goto failed;
|
||
off = krb5_storage_seek (sp, 0, SEEK_CUR);
|
||
ret = krb5_store_principal (sp, source);
|
||
if (ret)
|
||
goto failed;
|
||
|
||
krb5_storage_write(sp, value.data, value.length);
|
||
len = krb5_storage_seek (sp, 0, SEEK_CUR) - off;
|
||
|
||
krb5_storage_seek(sp, -(len + 4), SEEK_CUR);
|
||
ret = krb5_store_int32 (sp, len);
|
||
if (ret)
|
||
goto failed;
|
||
|
||
krb5_storage_seek(sp, len, SEEK_CUR);
|
||
ret = krb5_store_int32 (sp, len);
|
||
if (ret)
|
||
goto failed;
|
||
|
||
ret = kadm5_log_postamble (log_context, sp);
|
||
if (ret)
|
||
goto failed;
|
||
|
||
ret = kadm5_log_flush (log_context, sp);
|
||
if (ret)
|
||
goto failed;
|
||
krb5_storage_free (sp);
|
||
krb5_data_free (&value);
|
||
|
||
return kadm5_log_end (context);
|
||
|
||
failed:
|
||
krb5_data_free(&value);
|
||
krb5_storage_free(sp);
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Read a `rename' log operation from `sp' and apply it.
|
||
*/
|
||
|
||
static kadm5_ret_t
|
||
kadm5_log_replay_rename (kadm5_server_context *context,
|
||
uint32_t ver,
|
||
uint32_t len,
|
||
krb5_storage *sp)
|
||
{
|
||
krb5_error_code ret;
|
||
krb5_principal source;
|
||
hdb_entry_ex target_ent;
|
||
krb5_data value;
|
||
off_t off;
|
||
size_t princ_len, data_len;
|
||
|
||
memset(&target_ent, 0, sizeof(target_ent));
|
||
|
||
off = krb5_storage_seek(sp, 0, SEEK_CUR);
|
||
ret = krb5_ret_principal (sp, &source);
|
||
if (ret) {
|
||
krb5_set_error_message(context->context, ret, "Failed to read renamed "
|
||
"principal in log, version: %ld", (long)ver);
|
||
return ret;
|
||
}
|
||
princ_len = krb5_storage_seek(sp, 0, SEEK_CUR) - off;
|
||
data_len = len - princ_len;
|
||
ret = krb5_data_alloc (&value, data_len);
|
||
if (ret) {
|
||
krb5_free_principal (context->context, source);
|
||
return ret;
|
||
}
|
||
krb5_storage_read (sp, value.data, data_len);
|
||
ret = hdb_value2entry (context->context, &value, &target_ent.entry);
|
||
krb5_data_free(&value);
|
||
if (ret) {
|
||
krb5_free_principal (context->context, source);
|
||
return ret;
|
||
}
|
||
ret = context->db->hdb_store (context->context, context->db,
|
||
0, &target_ent);
|
||
hdb_free_entry (context->context, &target_ent);
|
||
if (ret) {
|
||
krb5_free_principal (context->context, source);
|
||
return ret;
|
||
}
|
||
ret = context->db->hdb_remove (context->context, context->db, source);
|
||
krb5_free_principal (context->context, source);
|
||
return ret;
|
||
}
|
||
|
||
|
||
/*
|
||
* Add a `modify' operation to the log.
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_modify (kadm5_server_context *context,
|
||
hdb_entry *ent,
|
||
uint32_t mask)
|
||
{
|
||
krb5_storage *sp;
|
||
kadm5_ret_t ret;
|
||
krb5_data value;
|
||
uint32_t len;
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
|
||
krb5_data_zero(&value);
|
||
|
||
sp = krb5_storage_emem();
|
||
ret = hdb_entry2value (context->context, ent, &value);
|
||
if (ret)
|
||
goto failed;
|
||
|
||
ret = kadm5_log_preamble (context, sp, kadm_modify);
|
||
if (ret)
|
||
goto failed;
|
||
|
||
len = value.length + 4;
|
||
ret = krb5_store_int32 (sp, len);
|
||
if (ret)
|
||
goto failed;
|
||
ret = krb5_store_int32 (sp, mask);
|
||
if (ret)
|
||
goto failed;
|
||
krb5_storage_write (sp, value.data, value.length);
|
||
|
||
ret = krb5_store_int32 (sp, len);
|
||
if (ret)
|
||
goto failed;
|
||
ret = kadm5_log_postamble (log_context, sp);
|
||
if (ret)
|
||
goto failed;
|
||
ret = kadm5_log_flush (log_context, sp);
|
||
if (ret)
|
||
goto failed;
|
||
krb5_data_free(&value);
|
||
krb5_storage_free (sp);
|
||
return kadm5_log_end (context);
|
||
failed:
|
||
krb5_data_free(&value);
|
||
krb5_storage_free(sp);
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Read a `modify' log operation from `sp' and apply it.
|
||
*/
|
||
|
||
static kadm5_ret_t
|
||
kadm5_log_replay_modify (kadm5_server_context *context,
|
||
uint32_t ver,
|
||
uint32_t len,
|
||
krb5_storage *sp)
|
||
{
|
||
krb5_error_code ret;
|
||
int32_t mask;
|
||
krb5_data value;
|
||
hdb_entry_ex ent, log_ent;
|
||
|
||
memset(&log_ent, 0, sizeof(log_ent));
|
||
|
||
krb5_ret_int32 (sp, &mask);
|
||
len -= 4;
|
||
ret = krb5_data_alloc (&value, len);
|
||
if (ret) {
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
return ret;
|
||
}
|
||
krb5_storage_read (sp, value.data, len);
|
||
ret = hdb_value2entry (context->context, &value, &log_ent.entry);
|
||
krb5_data_free(&value);
|
||
if (ret)
|
||
return ret;
|
||
|
||
memset(&ent, 0, sizeof(ent));
|
||
ret = context->db->hdb_fetch_kvno(context->context, context->db,
|
||
log_ent.entry.principal,
|
||
HDB_F_DECRYPT|HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent);
|
||
if (ret)
|
||
goto out;
|
||
if (mask & KADM5_PRINC_EXPIRE_TIME) {
|
||
if (log_ent.entry.valid_end == NULL) {
|
||
ent.entry.valid_end = NULL;
|
||
} else {
|
||
if (ent.entry.valid_end == NULL) {
|
||
ent.entry.valid_end = malloc(sizeof(*ent.entry.valid_end));
|
||
if (ent.entry.valid_end == NULL) {
|
||
ret = ENOMEM;
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
goto out;
|
||
}
|
||
}
|
||
*ent.entry.valid_end = *log_ent.entry.valid_end;
|
||
}
|
||
}
|
||
if (mask & KADM5_PW_EXPIRATION) {
|
||
if (log_ent.entry.pw_end == NULL) {
|
||
ent.entry.pw_end = NULL;
|
||
} else {
|
||
if (ent.entry.pw_end == NULL) {
|
||
ent.entry.pw_end = malloc(sizeof(*ent.entry.pw_end));
|
||
if (ent.entry.pw_end == NULL) {
|
||
ret = ENOMEM;
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
goto out;
|
||
}
|
||
}
|
||
*ent.entry.pw_end = *log_ent.entry.pw_end;
|
||
}
|
||
}
|
||
if (mask & KADM5_LAST_PWD_CHANGE) {
|
||
abort (); /* XXX */
|
||
}
|
||
if (mask & KADM5_ATTRIBUTES) {
|
||
ent.entry.flags = log_ent.entry.flags;
|
||
}
|
||
if (mask & KADM5_MAX_LIFE) {
|
||
if (log_ent.entry.max_life == NULL) {
|
||
ent.entry.max_life = NULL;
|
||
} else {
|
||
if (ent.entry.max_life == NULL) {
|
||
ent.entry.max_life = malloc (sizeof(*ent.entry.max_life));
|
||
if (ent.entry.max_life == NULL) {
|
||
ret = ENOMEM;
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
goto out;
|
||
}
|
||
}
|
||
*ent.entry.max_life = *log_ent.entry.max_life;
|
||
}
|
||
}
|
||
if ((mask & KADM5_MOD_TIME) && (mask & KADM5_MOD_NAME)) {
|
||
if (ent.entry.modified_by == NULL) {
|
||
ent.entry.modified_by = malloc(sizeof(*ent.entry.modified_by));
|
||
if (ent.entry.modified_by == NULL) {
|
||
ret = ENOMEM;
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
goto out;
|
||
}
|
||
} else
|
||
free_Event(ent.entry.modified_by);
|
||
ret = copy_Event(log_ent.entry.modified_by, ent.entry.modified_by);
|
||
if (ret) {
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
goto out;
|
||
}
|
||
}
|
||
if (mask & KADM5_KVNO) {
|
||
ent.entry.kvno = log_ent.entry.kvno;
|
||
}
|
||
if (mask & KADM5_MKVNO) {
|
||
abort (); /* XXX */
|
||
}
|
||
if (mask & KADM5_AUX_ATTRIBUTES) {
|
||
abort (); /* XXX */
|
||
}
|
||
if (mask & KADM5_POLICY) {
|
||
abort (); /* XXX */
|
||
}
|
||
if (mask & KADM5_POLICY_CLR) {
|
||
abort (); /* XXX */
|
||
}
|
||
if (mask & KADM5_MAX_RLIFE) {
|
||
if (log_ent.entry.max_renew == NULL) {
|
||
ent.entry.max_renew = NULL;
|
||
} else {
|
||
if (ent.entry.max_renew == NULL) {
|
||
ent.entry.max_renew = malloc (sizeof(*ent.entry.max_renew));
|
||
if (ent.entry.max_renew == NULL) {
|
||
ret = ENOMEM;
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
goto out;
|
||
}
|
||
}
|
||
*ent.entry.max_renew = *log_ent.entry.max_renew;
|
||
}
|
||
}
|
||
if (mask & KADM5_LAST_SUCCESS) {
|
||
abort (); /* XXX */
|
||
}
|
||
if (mask & KADM5_LAST_FAILED) {
|
||
abort (); /* XXX */
|
||
}
|
||
if (mask & KADM5_FAIL_AUTH_COUNT) {
|
||
abort (); /* XXX */
|
||
}
|
||
if (mask & KADM5_KEY_DATA) {
|
||
size_t num;
|
||
size_t i;
|
||
|
||
for (i = 0; i < ent.entry.keys.len; ++i)
|
||
free_Key(&ent.entry.keys.val[i]);
|
||
free (ent.entry.keys.val);
|
||
|
||
num = log_ent.entry.keys.len;
|
||
|
||
ent.entry.keys.len = num;
|
||
ent.entry.keys.val = malloc(len * sizeof(*ent.entry.keys.val));
|
||
if (ent.entry.keys.val == NULL) {
|
||
krb5_set_error_message(context->context, ENOMEM, "out of memory");
|
||
return ENOMEM;
|
||
}
|
||
for (i = 0; i < ent.entry.keys.len; ++i) {
|
||
ret = copy_Key(&log_ent.entry.keys.val[i],
|
||
&ent.entry.keys.val[i]);
|
||
if (ret) {
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
goto out;
|
||
}
|
||
}
|
||
}
|
||
if ((mask & KADM5_TL_DATA) && log_ent.entry.extensions) {
|
||
HDB_extensions *es = ent.entry.extensions;
|
||
|
||
ent.entry.extensions = calloc(1, sizeof(*ent.entry.extensions));
|
||
if (ent.entry.extensions == NULL)
|
||
goto out;
|
||
|
||
ret = copy_HDB_extensions(log_ent.entry.extensions,
|
||
ent.entry.extensions);
|
||
if (ret) {
|
||
krb5_set_error_message(context->context, ret, "out of memory");
|
||
free(ent.entry.extensions);
|
||
ent.entry.extensions = es;
|
||
goto out;
|
||
}
|
||
if (es) {
|
||
free_HDB_extensions(es);
|
||
free(es);
|
||
}
|
||
}
|
||
ret = context->db->hdb_store(context->context, context->db,
|
||
HDB_F_REPLACE, &ent);
|
||
out:
|
||
hdb_free_entry (context->context, &ent);
|
||
hdb_free_entry (context->context, &log_ent);
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Add a `nop' operation to the log. Does not close the log.
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_nop (kadm5_server_context *context)
|
||
{
|
||
krb5_storage *sp;
|
||
kadm5_ret_t ret;
|
||
kadm5_log_context *log_context = &context->log_context;
|
||
|
||
sp = krb5_storage_emem();
|
||
ret = kadm5_log_preamble (context, sp, kadm_nop);
|
||
if (ret) {
|
||
krb5_storage_free (sp);
|
||
return ret;
|
||
}
|
||
krb5_store_int32 (sp, 0);
|
||
krb5_store_int32 (sp, 0);
|
||
ret = kadm5_log_postamble (log_context, sp);
|
||
if (ret) {
|
||
krb5_storage_free (sp);
|
||
return ret;
|
||
}
|
||
ret = kadm5_log_flush (log_context, sp);
|
||
krb5_storage_free (sp);
|
||
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Read a `nop' log operation from `sp' and apply it.
|
||
*/
|
||
|
||
static kadm5_ret_t
|
||
kadm5_log_replay_nop (kadm5_server_context *context,
|
||
uint32_t ver,
|
||
uint32_t len,
|
||
krb5_storage *sp)
|
||
{
|
||
return 0;
|
||
}
|
||
|
||
/*
|
||
* Call `func' for each log record in the log in `context'
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_foreach (kadm5_server_context *context,
|
||
void (*func)(kadm5_server_context *server_context,
|
||
uint32_t ver,
|
||
time_t timestamp,
|
||
enum kadm_ops op,
|
||
uint32_t len,
|
||
krb5_storage *,
|
||
void *),
|
||
void *ctx)
|
||
{
|
||
int fd = context->log_context.log_fd;
|
||
krb5_storage *sp;
|
||
|
||
lseek (fd, 0, SEEK_SET);
|
||
sp = krb5_storage_from_fd (fd);
|
||
for (;;) {
|
||
int32_t ver, timestamp, op, len, len2, ver2;
|
||
|
||
if(krb5_ret_int32 (sp, &ver) != 0)
|
||
break;
|
||
krb5_ret_int32 (sp, ×tamp);
|
||
krb5_ret_int32 (sp, &op);
|
||
krb5_ret_int32 (sp, &len);
|
||
(*func)(context, ver, timestamp, op, len, sp, ctx);
|
||
krb5_ret_int32 (sp, &len2);
|
||
krb5_ret_int32 (sp, &ver2);
|
||
if (len != len2)
|
||
abort();
|
||
if (ver != ver2)
|
||
abort();
|
||
}
|
||
krb5_storage_free(sp);
|
||
return 0;
|
||
}
|
||
|
||
/*
|
||
* Go to end of log.
|
||
*/
|
||
|
||
krb5_storage *
|
||
kadm5_log_goto_end (int fd)
|
||
{
|
||
krb5_storage *sp;
|
||
|
||
sp = krb5_storage_from_fd (fd);
|
||
krb5_storage_seek(sp, 0, SEEK_END);
|
||
return sp;
|
||
}
|
||
|
||
/*
|
||
* Return previous log entry.
|
||
*
|
||
* The pointer in `sp´ is assumed to be at the top of the entry before
|
||
* previous entry. On success, the `sp´ pointer is set to data portion
|
||
* of previous entry. In case of error, it's not changed at all.
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_previous (krb5_context context,
|
||
krb5_storage *sp,
|
||
uint32_t *ver,
|
||
time_t *timestamp,
|
||
enum kadm_ops *op,
|
||
uint32_t *len)
|
||
{
|
||
krb5_error_code ret;
|
||
off_t off, oldoff;
|
||
int32_t tmp;
|
||
|
||
oldoff = krb5_storage_seek(sp, 0, SEEK_CUR);
|
||
|
||
krb5_storage_seek(sp, -8, SEEK_CUR);
|
||
ret = krb5_ret_int32 (sp, &tmp);
|
||
if (ret)
|
||
goto end_of_storage;
|
||
*len = tmp;
|
||
ret = krb5_ret_int32 (sp, &tmp);
|
||
if (ret)
|
||
goto end_of_storage;
|
||
*ver = tmp;
|
||
off = 24 + *len;
|
||
krb5_storage_seek(sp, -off, SEEK_CUR);
|
||
ret = krb5_ret_int32 (sp, &tmp);
|
||
if (ret)
|
||
goto end_of_storage;
|
||
if ((uint32_t)tmp != *ver) {
|
||
krb5_storage_seek(sp, oldoff, SEEK_SET);
|
||
krb5_set_error_message(context, KADM5_BAD_DB,
|
||
"kadm5_log_previous: log entry "
|
||
"have consistency failure, version number wrong "
|
||
"(tmp %lu ver %lu)",
|
||
(unsigned long)tmp,
|
||
(unsigned long)*ver);
|
||
return KADM5_BAD_DB;
|
||
}
|
||
ret = krb5_ret_int32 (sp, &tmp);
|
||
if (ret)
|
||
goto end_of_storage;
|
||
*timestamp = tmp;
|
||
ret = krb5_ret_int32 (sp, &tmp);
|
||
if (ret)
|
||
goto end_of_storage;
|
||
*op = tmp;
|
||
ret = krb5_ret_int32 (sp, &tmp);
|
||
if (ret)
|
||
goto end_of_storage;
|
||
if ((uint32_t)tmp != *len) {
|
||
krb5_storage_seek(sp, oldoff, SEEK_SET);
|
||
krb5_set_error_message(context, KADM5_BAD_DB,
|
||
"kadm5_log_previous: log entry "
|
||
"have consistency failure, length wrong");
|
||
return KADM5_BAD_DB;
|
||
}
|
||
return 0;
|
||
|
||
end_of_storage:
|
||
krb5_storage_seek(sp, oldoff, SEEK_SET);
|
||
krb5_set_error_message(context, ret, "kadm5_log_previous: end of storage "
|
||
"reached before end");
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Replay a record from the log
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_replay (kadm5_server_context *context,
|
||
enum kadm_ops op,
|
||
uint32_t ver,
|
||
uint32_t len,
|
||
krb5_storage *sp)
|
||
{
|
||
switch (op) {
|
||
case kadm_create :
|
||
return kadm5_log_replay_create (context, ver, len, sp);
|
||
case kadm_delete :
|
||
return kadm5_log_replay_delete (context, ver, len, sp);
|
||
case kadm_rename :
|
||
return kadm5_log_replay_rename (context, ver, len, sp);
|
||
case kadm_modify :
|
||
return kadm5_log_replay_modify (context, ver, len, sp);
|
||
case kadm_nop :
|
||
return kadm5_log_replay_nop (context, ver, len, sp);
|
||
default :
|
||
krb5_set_error_message(context->context, KADM5_FAILURE,
|
||
"Unsupported replay op %d", (int)op);
|
||
return KADM5_FAILURE;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* truncate the log - i.e. create an empty file with just (nop vno + 2)
|
||
*/
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_truncate (kadm5_server_context *server_context)
|
||
{
|
||
kadm5_ret_t ret;
|
||
uint32_t vno;
|
||
|
||
ret = kadm5_log_init (server_context);
|
||
if (ret)
|
||
return ret;
|
||
|
||
ret = kadm5_log_get_version (server_context, &vno);
|
||
if (ret)
|
||
return ret;
|
||
|
||
ret = kadm5_log_reinit (server_context);
|
||
if (ret)
|
||
return ret;
|
||
|
||
ret = kadm5_log_set_version (server_context, vno);
|
||
if (ret)
|
||
return ret;
|
||
|
||
ret = kadm5_log_nop (server_context);
|
||
if (ret)
|
||
return ret;
|
||
|
||
ret = kadm5_log_end (server_context);
|
||
if (ret)
|
||
return ret;
|
||
return 0;
|
||
|
||
}
|
||
|
||
#ifndef NO_UNIX_SOCKETS
|
||
|
||
static char *default_signal = NULL;
|
||
static HEIMDAL_MUTEX signal_mutex = HEIMDAL_MUTEX_INITIALIZER;
|
||
|
||
const char *
|
||
kadm5_log_signal_socket(krb5_context context)
|
||
{
|
||
HEIMDAL_MUTEX_lock(&signal_mutex);
|
||
if (!default_signal)
|
||
asprintf(&default_signal, "%s/signal", hdb_db_dir(context));
|
||
HEIMDAL_MUTEX_unlock(&signal_mutex);
|
||
|
||
return krb5_config_get_string_default(context,
|
||
NULL,
|
||
default_signal,
|
||
"kdc",
|
||
"signal_socket",
|
||
NULL);
|
||
}
|
||
|
||
#else /* NO_UNIX_SOCKETS */
|
||
|
||
#define SIGNAL_SOCKET_HOST "127.0.0.1"
|
||
#define SIGNAL_SOCKET_PORT "12701"
|
||
|
||
kadm5_ret_t
|
||
kadm5_log_signal_socket_info(krb5_context context,
|
||
int server_end,
|
||
struct addrinfo **ret_addrs)
|
||
{
|
||
struct addrinfo hints;
|
||
struct addrinfo *addrs = NULL;
|
||
kadm5_ret_t ret = KADM5_FAILURE;
|
||
int wsret;
|
||
|
||
memset(&hints, 0, sizeof(hints));
|
||
|
||
hints.ai_flags = AI_NUMERICHOST;
|
||
if (server_end)
|
||
hints.ai_flags |= AI_PASSIVE;
|
||
hints.ai_family = AF_INET;
|
||
hints.ai_socktype = SOCK_STREAM;
|
||
hints.ai_protocol = IPPROTO_TCP;
|
||
|
||
wsret = getaddrinfo(SIGNAL_SOCKET_HOST,
|
||
SIGNAL_SOCKET_PORT,
|
||
&hints, &addrs);
|
||
|
||
if (wsret != 0) {
|
||
krb5_set_error_message(context, KADM5_FAILURE,
|
||
"%s", gai_strerror(wsret));
|
||
goto done;
|
||
}
|
||
|
||
if (addrs == NULL) {
|
||
krb5_set_error_message(context, KADM5_FAILURE,
|
||
"getaddrinfo() failed to return address list");
|
||
goto done;
|
||
}
|
||
|
||
*ret_addrs = addrs;
|
||
addrs = NULL;
|
||
ret = 0;
|
||
|
||
done:
|
||
if (addrs)
|
||
freeaddrinfo(addrs);
|
||
return ret;
|
||
}
|
||
|
||
#endif
|