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/*
Unix SMB/CIFS implementation.
Handers for non core Samba internal messages
Handlers for messages that are only included in developer and self test
builds.
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2018
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 "messaging/messaging.h"
#include "messaging/messaging_internal.h"
#if defined(DEVELOPER) || defined(ENABLE_SELFTEST)
/*
* Inject a fault into the currently running process
*/
static void do_inject_fault(struct imessaging_context *msg,
void *private_data,
uint32_t msg_type,
struct server_id src,
size_t num_fds,
int *fds,
DATA_BLOB *data)
{
int sig;
struct server_id_buf tmp;
if (num_fds != 0) {
DBG_WARNING("Received %zu fds, ignoring message\n", num_fds);
return;
}
if (data->length != sizeof(sig)) {
DBG_ERR("Process %s sent bogus signal injection request\n",
server_id_str_buf(src, &tmp));
return;
}
sig = *(int *)data->data;
if (sig == -1) {
DBG_ERR("Process %s requested an iternal failure, "
"calling exit(1)\n",
server_id_str_buf(src, &tmp));
exit(1);
}
#if HAVE_STRSIGNAL
DBG_ERR("Process %s requested injection of signal %d (%s)\n",
server_id_str_buf(src, &tmp),
sig,
strsignal(sig));
#else
DBG_ERR("Process %s requested injection of signal %d\n",
server_id_str_buf(src, &tmp),
sig);
#endif
kill(getpid(), sig);
}
/*
* Cause the current process to sleep for a specified number of seconds
*/
static void do_sleep(struct imessaging_context *msg,
void *private_data,
uint32_t msg_type,
struct server_id src,
size_t num_fds,
int *fds,
DATA_BLOB *data)
{
unsigned int seconds;
struct server_id_buf tmp;
if (num_fds != 0) {
DBG_WARNING("Received %zu fds, ignoring message\n", num_fds);
return;
}
if (data->length != sizeof(seconds)) {
DBG_ERR("Process %s sent bogus sleep request\n",
server_id_str_buf(src, &tmp));
return;
}
seconds = *(unsigned int *)data->data;
DBG_ERR("Process %s requested a sleep of %u seconds\n",
server_id_str_buf(src, &tmp),
seconds);
sleep(seconds);
DBG_ERR("Restarting after %u second sleep requested by process %s\n",
seconds,
server_id_str_buf(src, &tmp));
}
/*
* Register the extra messaging handlers
*/
NTSTATUS imessaging_register_extra_handlers(struct imessaging_context *msg)
{
NTSTATUS status;
status = imessaging_register(
msg, NULL, MSG_SMB_INJECT_FAULT, do_inject_fault);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = imessaging_register(msg, NULL, MSG_SMB_SLEEP, do_sleep);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
return NT_STATUS_OK;
}
#endif /* defined(DEVELOPER) || defined(ENABLE_SELFTEST) */
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