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https://github.com/systemd/systemd.git
synced 2024-12-26 03:22:00 +03:00
rename udevcontrol message types and variables
This commit is contained in:
Kay Sievers
parent
e62fea3513
commit
b3518c16e3
@ -63,7 +63,7 @@ static void usage(void)
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int main(int argc, char *argv[], char *envp[])
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{
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static struct udevd_msg usend_msg;
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static struct udevd_ctrl_msg ctrl_msg;
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struct sockaddr_un saddr;
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socklen_t addrlen;
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const char *env;
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@ -85,28 +85,28 @@ int main(int argc, char *argv[], char *envp[])
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goto exit;
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}
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memset(&usend_msg, 0x00, sizeof(struct udevd_msg));
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strcpy(usend_msg.magic, UDEV_MAGIC);
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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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for (i = 1 ; i < argc; i++) {
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char *arg = argv[i];
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if (!strcmp(arg, "stop_exec_queue"))
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usend_msg.type = UDEVD_STOP_EXEC_QUEUE;
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ctrl_msg.type = UDEVD_CTRL_STOP_EXEC_QUEUE;
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else if (!strcmp(arg, "start_exec_queue"))
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usend_msg.type = UDEVD_START_EXEC_QUEUE;
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ctrl_msg.type = UDEVD_CTRL_START_EXEC_QUEUE;
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else if (!strcmp(arg, "reload_rules"))
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usend_msg.type = UDEVD_RELOAD_RULES;
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ctrl_msg.type = UDEVD_CTRL_RELOAD_RULES;
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else if (!strncmp(arg, "log_priority=", strlen("log_priority="))) {
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intval = (int *) usend_msg.envbuf;
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intval = (int *) ctrl_msg.buf;
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val = &arg[strlen("log_priority=")];
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usend_msg.type = UDEVD_SET_LOG_LEVEL;
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ctrl_msg.type = UDEVD_CTRL_SET_LOG_LEVEL;
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*intval = log_priority(val);
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info("send log_priority=%i", *intval);
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} else if (!strncmp(arg, "max_childs=", strlen("max_childs="))) {
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intval = (int *) usend_msg.envbuf;
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intval = (int *) ctrl_msg.buf;
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val = &arg[strlen("max_childs=")];
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usend_msg.type = UDEVD_SET_MAX_CHILDS;
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ctrl_msg.type = UDEVD_CTRL_SET_MAX_CHILDS;
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*intval = atoi(val);
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info("send max_childs=%i", *intval);
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} else if (strcmp(arg, "help") == 0 || strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
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@ -133,15 +133,15 @@ int main(int argc, char *argv[], char *envp[])
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memset(&saddr, 0x00, sizeof(struct sockaddr_un));
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saddr.sun_family = AF_LOCAL;
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/* use abstract namespace for socket path */
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strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
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strcpy(&saddr.sun_path[1], UDEVD_CTRL_SOCK_PATH);
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addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
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retval = sendto(sock, &usend_msg, sizeof(usend_msg), 0, (struct sockaddr *)&saddr, addrlen);
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retval = sendto(sock, &ctrl_msg, sizeof(ctrl_msg), 0, (struct sockaddr *)&saddr, addrlen);
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if (retval == -1) {
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err("error sending message: %s", strerror(errno));
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retval = 1;
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} else {
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dbg("sent message type=0x%02x, %u bytes sent", usend_msg.type, retval);
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dbg("sent message type=0x%02x, %u bytes sent", ctrl_msg.type, retval);
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retval = 0;
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}
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71
udevd.c
71
udevd.c
@ -1,7 +1,7 @@
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/*
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* udevd.c - event listener and serializer
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*
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* Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org>
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* Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
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* Copyright (C) 2004 Chris Friesen <chris_friesen@sympatico.ca>
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*
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*
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@ -86,7 +86,7 @@ static void asmlinkage udev_event_sig_handler(int signum)
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exit(1);
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}
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static int udev_event_process(struct uevent_msg *msg)
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static int udev_event_process(struct udevd_uevent_msg *msg)
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{
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struct sigaction act;
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struct udevice *udev;
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@ -153,13 +153,13 @@ enum event_state {
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EVENT_FAILED,
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};
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static void export_event_state(struct uevent_msg *msg, enum event_state state)
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static void export_event_state(struct udevd_uevent_msg *msg, enum event_state state)
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{
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char filename[PATH_SIZE];
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char filename_failed[PATH_SIZE];
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char target[PATH_SIZE];
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size_t start, end, i;
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struct uevent_msg *loop_msg;
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struct udevd_uevent_msg *loop_msg;
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/* add location of queue files */
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strlcpy(filename, udev_root, sizeof(filename));
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@ -226,7 +226,7 @@ static void export_event_state(struct uevent_msg *msg, enum event_state state)
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}
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}
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static void msg_queue_delete(struct uevent_msg *msg)
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static void msg_queue_delete(struct udevd_uevent_msg *msg)
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{
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list_del(&msg->node);
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@ -239,7 +239,7 @@ static void msg_queue_delete(struct uevent_msg *msg)
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free(msg);
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}
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static void udev_event_run(struct uevent_msg *msg)
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static void udev_event_run(struct udevd_uevent_msg *msg)
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{
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pid_t pid;
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int retval;
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@ -278,7 +278,7 @@ static void udev_event_run(struct uevent_msg *msg)
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}
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}
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static void msg_queue_insert(struct uevent_msg *msg)
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static void msg_queue_insert(struct udevd_uevent_msg *msg)
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{
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char filename[PATH_SIZE];
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int fd;
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@ -431,9 +431,9 @@ static int compare_devpath(const char *running, const char *waiting)
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}
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/* returns still running task for the same device, its parent or its physical device */
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static int running_with_devpath(struct uevent_msg *msg, int limit)
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static int running_with_devpath(struct udevd_uevent_msg *msg, int limit)
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{
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struct uevent_msg *loop_msg;
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struct udevd_uevent_msg *loop_msg;
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int childs_count = 0;
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list_for_each_entry(loop_msg, &running_list, node) {
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@ -464,8 +464,8 @@ static int running_with_devpath(struct uevent_msg *msg, int limit)
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/* exec queue management routine executes the events and serializes events in the same sequence */
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static void msg_queue_manager(void)
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{
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struct uevent_msg *loop_msg;
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struct uevent_msg *tmp_msg;
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struct udevd_uevent_msg *loop_msg;
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struct udevd_uevent_msg *tmp_msg;
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int running;
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if (list_empty(&exec_list))
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@ -501,18 +501,18 @@ static void msg_queue_manager(void)
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}
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}
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static struct uevent_msg *get_msg_from_envbuf(const char *buf, int buf_size)
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static struct udevd_uevent_msg *get_msg_from_envbuf(const char *buf, int buf_size)
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{
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int bufpos;
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int i;
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struct uevent_msg *msg;
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struct udevd_uevent_msg *msg;
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int major = 0;
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int minor = 0;
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msg = malloc(sizeof(struct uevent_msg) + buf_size);
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msg = malloc(sizeof(struct udevd_uevent_msg) + buf_size);
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if (msg == NULL)
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return NULL;
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memset(msg, 0x00, sizeof(struct uevent_msg) + buf_size);
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memset(msg, 0x00, sizeof(struct udevd_uevent_msg) + buf_size);
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/* copy environment buffer and reconstruct envp */
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memcpy(msg->envbuf, buf, buf_size);
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@ -558,9 +558,9 @@ static struct uevent_msg *get_msg_from_envbuf(const char *buf, int buf_size)
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}
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/* receive the udevd message from userspace */
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static void get_udevd_msg(void)
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static void get_ctrl_msg(void)
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{
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struct udevd_msg ctrl_msg;
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struct udevd_ctrl_msg ctrl_msg;
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ssize_t size;
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struct msghdr smsg;
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struct cmsghdr *cmsg;
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@ -569,9 +569,9 @@ static void get_udevd_msg(void)
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char cred_msg[CMSG_SPACE(sizeof(struct ucred))];
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int *intval;
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memset(&ctrl_msg, 0x00, sizeof(struct udevd_msg));
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memset(&ctrl_msg, 0x00, sizeof(struct udevd_ctrl_msg));
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iov.iov_base = &ctrl_msg;
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iov.iov_len = sizeof(struct udevd_msg);
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iov.iov_len = sizeof(struct udevd_ctrl_msg);
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memset(&smsg, 0x00, sizeof(struct msghdr));
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smsg.msg_iov = &iov;
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@ -598,34 +598,34 @@ static void get_udevd_msg(void)
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return;
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}
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if (strncmp(ctrl_msg.magic, UDEV_MAGIC, sizeof(UDEV_MAGIC)) != 0 ) {
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if (strncmp(ctrl_msg.magic, UDEVD_CTRL_MAGIC, sizeof(UDEVD_CTRL_MAGIC)) != 0 ) {
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err("message magic '%s' doesn't match, ignore it", ctrl_msg.magic);
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return;
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}
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switch (ctrl_msg.type) {
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case UDEVD_STOP_EXEC_QUEUE:
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case UDEVD_CTRL_STOP_EXEC_QUEUE:
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info("udevd message (STOP_EXEC_QUEUE) received");
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stop_exec_q = 1;
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break;
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case UDEVD_START_EXEC_QUEUE:
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case UDEVD_CTRL_START_EXEC_QUEUE:
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info("udevd message (START_EXEC_QUEUE) received");
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stop_exec_q = 0;
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msg_queue_manager();
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break;
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case UDEVD_SET_LOG_LEVEL:
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intval = (int *) ctrl_msg.envbuf;
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case UDEVD_CTRL_SET_LOG_LEVEL:
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intval = (int *) ctrl_msg.buf;
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info("udevd message (SET_LOG_PRIORITY) received, udev_log_priority=%i", *intval);
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udev_log_priority = *intval;
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sprintf(udev_log, "UDEV_LOG=%i", udev_log_priority);
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putenv(udev_log);
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break;
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case UDEVD_SET_MAX_CHILDS:
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intval = (int *) ctrl_msg.envbuf;
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case UDEVD_CTRL_SET_MAX_CHILDS:
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intval = (int *) ctrl_msg.buf;
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info("udevd message (UDEVD_SET_MAX_CHILDS) received, max_childs=%i", *intval);
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max_childs = *intval;
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break;
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case UDEVD_RELOAD_RULES:
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case UDEVD_CTRL_RELOAD_RULES:
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info("udevd message (RELOAD_RULES) received");
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reload_config = 1;
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break;
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@ -635,9 +635,9 @@ static void get_udevd_msg(void)
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}
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/* receive the kernel user event message and do some sanity checks */
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static struct uevent_msg *get_netlink_msg(void)
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static struct udevd_uevent_msg *get_netlink_msg(void)
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{
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struct uevent_msg *msg;
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struct udevd_uevent_msg *msg;
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int bufpos;
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ssize_t size;
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static char buffer[UEVENT_BUFFER_SIZE+512];
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@ -660,7 +660,6 @@ static struct uevent_msg *get_netlink_msg(void)
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msg = get_msg_from_envbuf(&buffer[bufpos], size-bufpos);
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if (msg == NULL)
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return NULL;
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msg->type = UDEVD_UEVENT_NETLINK;
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/* validate message */
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pos = strchr(buffer, '@');
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@ -709,7 +708,7 @@ static void asmlinkage sig_handler(int signum)
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static void udev_done(int pid, int exitstatus)
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{
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/* find msg associated with pid and delete it */
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struct uevent_msg *msg;
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struct udevd_uevent_msg *msg;
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list_for_each_entry(msg, &running_list, node) {
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if (msg->pid == pid) {
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@ -755,7 +754,7 @@ static int init_udevd_socket(void)
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memset(&saddr, 0x00, sizeof(saddr));
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saddr.sun_family = AF_LOCAL;
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/* use abstract namespace for socket path */
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strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
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strcpy(&saddr.sun_path[1], UDEVD_CTRL_SOCK_PATH);
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addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
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udevd_sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
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@ -1026,7 +1025,7 @@ int main(int argc, char *argv[], char *envp[])
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maxfd = UDEV_MAX(maxfd, inotify_fd);
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while (!udev_exit) {
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struct uevent_msg *msg;
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struct udevd_uevent_msg *msg;
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int fdcount;
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FD_ZERO(&readfds);
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@ -1043,11 +1042,11 @@ int main(int argc, char *argv[], char *envp[])
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continue;
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}
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/* get user socket message */
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/* get control message */
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if (FD_ISSET(udevd_sock, &readfds))
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get_udevd_msg();
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get_ctrl_msg();
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/* get kernel netlink message */
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/* get netlink message */
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if (FD_ISSET(uevent_netlink_sock, &readfds)) {
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msg = get_netlink_msg();
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if (msg)
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35
udevd.h
35
udevd.h
@ -21,9 +21,6 @@
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#include "list.h"
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#define UDEV_MAGIC "udevd_" UDEV_VERSION
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#define UDEVD_SOCK_PATH "/org/kernel/udev/udevd"
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#define UDEVD_PRIORITY -4
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#define UDEV_PRIORITY -2
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@ -36,29 +33,29 @@
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/* start to throttle forking if maximum number of running childs in our session is reached */
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#define UDEVD_MAX_CHILDS_RUNNING 16
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/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
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/* linux/include/linux/kobject.h */
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#define UEVENT_BUFFER_SIZE 2048
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#define UEVENT_NUM_ENVP 64
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#define UEVENT_NUM_ENVP 32
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enum udevd_msg_type {
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UDEVD_UNKNOWN,
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UDEVD_UEVENT_NETLINK,
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UDEVD_STOP_EXEC_QUEUE,
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UDEVD_START_EXEC_QUEUE,
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UDEVD_SET_LOG_LEVEL,
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UDEVD_SET_MAX_CHILDS,
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UDEVD_RELOAD_RULES,
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#define UDEVD_CTRL_SOCK_PATH "/org/kernel/udev/udevd"
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#define UDEVD_CTRL_MAGIC "udevd_" UDEV_VERSION
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enum udevd_ctrl_msg_type {
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UDEVD_CTRL_UNKNOWN,
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UDEVD_CTRL_STOP_EXEC_QUEUE,
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UDEVD_CTRL_START_EXEC_QUEUE,
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UDEVD_CTRL_SET_LOG_LEVEL,
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UDEVD_CTRL_SET_MAX_CHILDS,
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UDEVD_CTRL_RELOAD_RULES,
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};
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struct udevd_msg {
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struct udevd_ctrl_msg {
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char magic[32];
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enum udevd_msg_type type;
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char envbuf[UEVENT_BUFFER_SIZE+512];
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enum udevd_ctrl_msg_type type;
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char buf[256];
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};
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struct uevent_msg {
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enum udevd_msg_type type;
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struct udevd_uevent_msg {
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struct list_head node;
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pid_t pid;
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int exitstatus;
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