mirror of
https://github.com/systemd/systemd-stable.git
synced 2024-10-30 14:55:26 +03:00
136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
/*
|
|
* Copyright (C) 2005-2008 Kay Sievers <kay.sievers@vrfy.org>
|
|
*
|
|
* 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 version 2 of the License.
|
|
*
|
|
* 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, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/un.h>
|
|
|
|
#include "udev.h"
|
|
#include "udevd.h"
|
|
|
|
struct udev_ctrl {
|
|
struct udev *udev;
|
|
int sock;
|
|
struct sockaddr_un saddr;
|
|
socklen_t addrlen;
|
|
};
|
|
|
|
struct udev_ctrl *udev_ctrl_new_from_socket(struct udev *udev, const char *socket_path)
|
|
{
|
|
struct udev_ctrl *uctrl;
|
|
|
|
uctrl = malloc(sizeof(struct udev_ctrl));
|
|
if (uctrl == NULL)
|
|
return NULL;
|
|
memset(uctrl, 0x00, sizeof(struct udev_ctrl));
|
|
uctrl->udev = udev;
|
|
|
|
uctrl->sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
|
|
if (uctrl->sock < 0) {
|
|
err(udev, "error getting socket: %s\n", strerror(errno));
|
|
free(uctrl);
|
|
return NULL;
|
|
}
|
|
|
|
uctrl->saddr.sun_family = AF_LOCAL;
|
|
strcpy(uctrl->saddr.sun_path, socket_path);
|
|
uctrl->addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(uctrl->saddr.sun_path);
|
|
/* translate leading '@' to abstract namespace */
|
|
if (uctrl->saddr.sun_path[0] == '@')
|
|
uctrl->saddr.sun_path[0] = '\0';
|
|
return uctrl;
|
|
}
|
|
|
|
void udev_ctrl_unref(struct udev_ctrl *uctrl)
|
|
{
|
|
if (uctrl == NULL)
|
|
return;
|
|
close(uctrl->sock);
|
|
}
|
|
|
|
static int ctrl_send(struct udev_ctrl *uctrl, enum udevd_ctrl_msg_type type, int intval, const char *buf)
|
|
{
|
|
struct udevd_ctrl_msg ctrl_msg;
|
|
int err;
|
|
|
|
memset(&ctrl_msg, 0x00, sizeof(struct udevd_ctrl_msg));
|
|
strcpy(ctrl_msg.magic, UDEVD_CTRL_MAGIC);
|
|
ctrl_msg.type = type;
|
|
|
|
if (buf != NULL)
|
|
strlcpy(ctrl_msg.buf, buf, sizeof(ctrl_msg.buf));
|
|
else
|
|
ctrl_msg.intval = intval;
|
|
|
|
err = sendto(uctrl->sock, &ctrl_msg, sizeof(ctrl_msg), 0, (struct sockaddr *)&uctrl->saddr, uctrl->addrlen);
|
|
if (err == -1) {
|
|
err(uctrl->udev, "error sending message: %s\n", strerror(errno));
|
|
}
|
|
return err;
|
|
}
|
|
|
|
int udev_ctrl_set_log_level(struct udev_ctrl *uctrl, int priority)
|
|
{
|
|
ctrl_send(uctrl, UDEVD_CTRL_SET_LOG_LEVEL, priority, NULL);
|
|
return 0;
|
|
}
|
|
|
|
int udev_ctrl_stop_exec_queue(struct udev_ctrl *uctrl)
|
|
{
|
|
ctrl_send(uctrl, UDEVD_CTRL_STOP_EXEC_QUEUE, 0, NULL);
|
|
return 0;
|
|
}
|
|
|
|
int udev_ctrl_start_exec_queue(struct udev_ctrl *uctrl)
|
|
{
|
|
ctrl_send(uctrl, UDEVD_CTRL_START_EXEC_QUEUE, 0, NULL);
|
|
return 0;
|
|
}
|
|
|
|
int udev_ctrl_reload_rules(struct udev_ctrl *uctrl)
|
|
{
|
|
ctrl_send(uctrl, UDEVD_CTRL_RELOAD_RULES, 0, NULL);
|
|
return 0;
|
|
}
|
|
|
|
int udev_ctrl_set_env(struct udev_ctrl *uctrl, const char *key)
|
|
{
|
|
ctrl_send(uctrl, UDEVD_CTRL_ENV, 0, optarg);
|
|
return 0;
|
|
}
|
|
|
|
int udev_ctrl_set_max_childs(struct udev_ctrl *uctrl, int count)
|
|
{
|
|
ctrl_send(uctrl, UDEVD_CTRL_SET_MAX_CHILDS, count, NULL);
|
|
return 0;
|
|
}
|
|
|
|
int udev_ctrl_set_max_childs_running(struct udev_ctrl *uctrl, int count)
|
|
{
|
|
ctrl_send(uctrl, UDEVD_CTRL_SET_MAX_CHILDS_RUNNING, count, NULL);
|
|
return 0;
|
|
}
|