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| Current File : //usr/src/crypto/heimdal/lib/kadm5/log.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: log.c 22211 2007-12-07 19:27:27Z lha $");
/*
* 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) {
krb5_set_error_string(context->context, "kadm5_log_init: open %s",
log_context->log_file);
return errno;
}
if (flock (fd, LOCK_EX) < 0) {
krb5_set_error_string(context->context, "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;
int ret;
krb5_storage_to_data(sp, &data);
len = data.length;
ret = write (log_context->log_fd, data.data, len);
if (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'
*/
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));
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_string(context->context, "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_string(context->context,
"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_string(context->context, "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_string(context->context, "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_string(context->context, "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(context->context, context->db,
log_ent.entry.principal,
HDB_F_DECRYPT|HDB_F_GET_ANY, &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) {
krb5_set_error_string(context->context, "out of memory");
ret = ENOMEM;
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) {
krb5_set_error_string(context->context, "out of memory");
ret = ENOMEM;
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) {
krb5_set_error_string(context->context, "out of memory");
ret = ENOMEM;
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) {
krb5_set_error_string(context->context, "out of memory");
ret = ENOMEM;
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_string(context->context, "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) {
krb5_set_error_string(context->context, "out of memory");
ret = ENOMEM;
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;
int 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_string(context->context, "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_string(context->context, "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_string(context->context, "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);
*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 (tmp != *ver) {
krb5_storage_seek(sp, oldoff, SEEK_SET);
krb5_set_error_string(context, "kadm5_log_previous: log entry "
"have consistency failure, version number wrong");
return KADM5_BAD_DB;
}
ret = krb5_ret_int32 (sp, &tmp);
if (ret)
goto end_of_storage;
*timestamp = tmp;
ret = krb5_ret_int32 (sp, &tmp);
*op = tmp;
ret = krb5_ret_int32 (sp, &tmp);
if (ret)
goto end_of_storage;
if (tmp != *len) {
krb5_storage_seek(sp, oldoff, SEEK_SET);
krb5_set_error_string(context, "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_string(context, "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_string(context->context,
"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;
}
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);
}