136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
/*
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* Copyright (C) 2005-2008 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "config.h"
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include "udev.h"
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#include "udevd.h"
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struct udev_ctrl {
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struct udev *udev;
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int sock;
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struct sockaddr_un saddr;
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socklen_t addrlen;
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};
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struct udev_ctrl *udev_ctrl_new_from_socket(struct udev *udev, const char *socket_path)
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{
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struct udev_ctrl *uctrl;
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uctrl = malloc(sizeof(struct udev_ctrl));
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if (uctrl == NULL)
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return NULL;
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memset(uctrl, 0x00, sizeof(struct udev_ctrl));
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uctrl->udev = udev;
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uctrl->sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
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if (uctrl->sock < 0) {
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err(udev, "error getting socket: %s\n", strerror(errno));
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free(uctrl);
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return NULL;
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}
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uctrl->saddr.sun_family = AF_LOCAL;
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strcpy(uctrl->saddr.sun_path, socket_path);
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uctrl->addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(uctrl->saddr.sun_path);
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/* translate leading '@' to abstract namespace */
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if (uctrl->saddr.sun_path[0] == '@')
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uctrl->saddr.sun_path[0] = '\0';
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return uctrl;
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}
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void udev_ctrl_unref(struct udev_ctrl *uctrl)
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{
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if (uctrl == NULL)
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return;
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close(uctrl->sock);
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}
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static int ctrl_send(struct udev_ctrl *uctrl, enum udevd_ctrl_msg_type type, int intval, const char *buf)
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{
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struct udevd_ctrl_msg ctrl_msg;
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int err;
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memset(&ctrl_msg, 0x00, sizeof(struct udevd_ctrl_msg));
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strcpy(ctrl_msg.magic, UDEVD_CTRL_MAGIC);
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ctrl_msg.type = type;
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if (buf != NULL)
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strlcpy(ctrl_msg.buf, buf, sizeof(ctrl_msg.buf));
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else
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ctrl_msg.intval = intval;
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err = sendto(uctrl->sock, &ctrl_msg, sizeof(ctrl_msg), 0, (struct sockaddr *)&uctrl->saddr, uctrl->addrlen);
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if (err == -1) {
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err(uctrl->udev, "error sending message: %s\n", strerror(errno));
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}
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return err;
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}
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int udev_ctrl_set_log_level(struct udev_ctrl *uctrl, int priority)
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{
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ctrl_send(uctrl, UDEVD_CTRL_SET_LOG_LEVEL, priority, NULL);
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return 0;
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}
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int udev_ctrl_stop_exec_queue(struct udev_ctrl *uctrl)
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{
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ctrl_send(uctrl, UDEVD_CTRL_STOP_EXEC_QUEUE, 0, NULL);
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return 0;
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}
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int udev_ctrl_start_exec_queue(struct udev_ctrl *uctrl)
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{
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ctrl_send(uctrl, UDEVD_CTRL_START_EXEC_QUEUE, 0, NULL);
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return 0;
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}
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int udev_ctrl_reload_rules(struct udev_ctrl *uctrl)
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{
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ctrl_send(uctrl, UDEVD_CTRL_RELOAD_RULES, 0, NULL);
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return 0;
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}
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int udev_ctrl_set_env(struct udev_ctrl *uctrl, const char *key)
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{
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ctrl_send(uctrl, UDEVD_CTRL_ENV, 0, optarg);
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return 0;
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}
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int udev_ctrl_set_max_childs(struct udev_ctrl *uctrl, int count)
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{
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ctrl_send(uctrl, UDEVD_CTRL_SET_MAX_CHILDS, count, NULL);
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return 0;
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}
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int udev_ctrl_set_max_childs_running(struct udev_ctrl *uctrl, int count)
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{
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ctrl_send(uctrl, UDEVD_CTRL_SET_MAX_CHILDS_RUNNING, count, NULL);
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return 0;
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}
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