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/*
Unix SMB/CIFS implementation.
Samba utility functions
Copyright (C) Andrew Bartlett 2011
Copyright (C) Andrew Tridgell 1992-2002
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "lib/util/server_id.h"
#include "librpc/gen_ndr/messaging.h"
#include "messages.h"
#include "lib/util/memory.h"
/* This is the Samba3-specific implementation of reopen_logs(), which
* calls out to the s3 loadparm code, and means that we don't depend
* on loadparm directly. */
bool reopen_logs(void)
{
if (lp_loaded()) {
struct debug_settings settings = {
.max_log_size = lp_max_log_size(),
.timestamp_logs = lp_timestamp_logs(),
.debug_prefix_timestamp = lp_debug_prefix_timestamp(),
.debug_hires_timestamp = lp_debug_hires_timestamp(),
.debug_syslog_format = lp_debug_syslog_format(),
.debug_pid = lp_debug_pid(),
.debug_uid = lp_debug_uid(),
.debug_class = lp_debug_class(),
};
const struct loadparm_substitution *lp_sub =
loadparm_s3_global_substitution();
debug_set_logfile(lp_logfile(talloc_tos(), lp_sub));
debug_parse_levels(lp_log_level(talloc_tos(), lp_sub));
debug_set_settings(&settings,
lp_logging(talloc_tos(), lp_sub),
lp_syslog(),
lp_syslog_only());
} else {
/*
* Parameters are not yet loaded - configure debugging with
* reasonable defaults to enable logging for early
* startup failures.
*/
struct debug_settings settings = {
.max_log_size = 5000,
.timestamp_logs = true,
.debug_prefix_timestamp = false,
.debug_hires_timestamp = true,
.debug_syslog_format = false,
.debug_pid = false,
.debug_uid = false,
.debug_class = false,
};
debug_set_settings(&settings,
"file",
1,
false);
}
return reopen_logs_internal();
}
/****************************************************************************
Receive a "set debug level" message.
****************************************************************************/
void debug_message(struct messaging_context *msg_ctx,
void *private_data,
uint32_t msg_type,
struct server_id src,
DATA_BLOB *data)
{
const char *params_str = (const char *)data->data;
/* Check, it's a proper string! */
if (params_str[(data->length)-1] != '\0') {
DEBUG(1, ("Invalid debug message from pid %u to pid %u\n",
(unsigned int)procid_to_pid(&src),
(unsigned int)getpid()));
return;
}
DEBUG(3, ("INFO: Remote set of debug to `%s' (pid %u from pid %u)\n",
params_str, (unsigned int)getpid(),
(unsigned int)procid_to_pid(&src)));
debug_parse_levels(params_str);
}
/****************************************************************************
Return current debug level.
****************************************************************************/
static void debuglevel_message(struct messaging_context *msg_ctx,
void *private_data,
uint32_t msg_type,
struct server_id src,
DATA_BLOB *data)
{
char *message = debug_list_class_names_and_levels();
struct server_id_buf tmp;
if (!message) {
DEBUG(0,("debuglevel_message - debug_list_class_names_and_levels returned NULL\n"));
return;
}
DEBUG(1, ("INFO: Received REQ_DEBUGLEVEL message from PID %s\n",
server_id_str_buf(src, &tmp)));
messaging_send_buf(msg_ctx, src, MSG_DEBUGLEVEL,
(uint8_t *)message, strlen(message) + 1);
TALLOC_FREE(message);
}
static void debug_ringbuf_log(struct messaging_context *msg_ctx,
void *private_data,
uint32_t msg_type,
struct server_id src,
DATA_BLOB *data)
{
char *log = debug_get_ringbuf();
size_t logsize = debug_get_ringbuf_size();
if (log == NULL) {
log = discard_const_p(char, "*disabled*\n");
logsize = strlen(log) + 1;
}
messaging_send_buf(msg_ctx, src, MSG_RINGBUF_LOG, (uint8_t *)log,
logsize);
}
void debug_register_msgs(struct messaging_context *msg_ctx)
{
messaging_register(msg_ctx, NULL, MSG_DEBUG, debug_message);
messaging_register(msg_ctx, NULL, MSG_REQ_DEBUGLEVEL,
debuglevel_message);
messaging_register(msg_ctx, NULL, MSG_REQ_RINGBUF_LOG,
debug_ringbuf_log);
}
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