mirror of
https://github.com/systemd/systemd.git
synced 2024-12-27 07:22:31 +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)
|
||||
|
||||
int main(int argc, char *argv[], char *envp[])
|
||||
{
|
||||
static struct udevd_msg usend_msg;
|
||||
static struct udevd_ctrl_msg ctrl_msg;
|
||||
struct sockaddr_un saddr;
|
||||
socklen_t addrlen;
|
||||
const char *env;
|
||||
@ -85,28 +85,28 @@ int main(int argc, char *argv[], char *envp[])
|
||||
goto exit;
|
||||
}
|
||||
|
||||
memset(&usend_msg, 0x00, sizeof(struct udevd_msg));
|
||||
strcpy(usend_msg.magic, UDEV_MAGIC);
|
||||
memset(&ctrl_msg, 0x00, sizeof(struct udevd_ctrl_msg));
|
||||
strcpy(ctrl_msg.magic, UDEVD_CTRL_MAGIC);
|
||||
|
||||
for (i = 1 ; i < argc; i++) {
|
||||
char *arg = argv[i];
|
||||
|
||||
if (!strcmp(arg, "stop_exec_queue"))
|
||||
usend_msg.type = UDEVD_STOP_EXEC_QUEUE;
|
||||
ctrl_msg.type = UDEVD_CTRL_STOP_EXEC_QUEUE;
|
||||
else if (!strcmp(arg, "start_exec_queue"))
|
||||
usend_msg.type = UDEVD_START_EXEC_QUEUE;
|
||||
ctrl_msg.type = UDEVD_CTRL_START_EXEC_QUEUE;
|
||||
else if (!strcmp(arg, "reload_rules"))
|
||||
usend_msg.type = UDEVD_RELOAD_RULES;
|
||||
ctrl_msg.type = UDEVD_CTRL_RELOAD_RULES;
|
||||
else if (!strncmp(arg, "log_priority=", strlen("log_priority="))) {
|
||||
intval = (int *) usend_msg.envbuf;
|
||||
intval = (int *) ctrl_msg.buf;
|
||||
val = &arg[strlen("log_priority=")];
|
||||
usend_msg.type = UDEVD_SET_LOG_LEVEL;
|
||||
ctrl_msg.type = UDEVD_CTRL_SET_LOG_LEVEL;
|
||||
*intval = log_priority(val);
|
||||
info("send log_priority=%i", *intval);
|
||||
} else if (!strncmp(arg, "max_childs=", strlen("max_childs="))) {
|
||||
intval = (int *) usend_msg.envbuf;
|
||||
intval = (int *) ctrl_msg.buf;
|
||||
val = &arg[strlen("max_childs=")];
|
||||
usend_msg.type = UDEVD_SET_MAX_CHILDS;
|
||||
ctrl_msg.type = UDEVD_CTRL_SET_MAX_CHILDS;
|
||||
*intval = atoi(val);
|
||||
info("send max_childs=%i", *intval);
|
||||
} else if (strcmp(arg, "help") == 0 || strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
|
||||
@ -133,15 +133,15 @@ int main(int argc, char *argv[], char *envp[])
|
||||
memset(&saddr, 0x00, sizeof(struct sockaddr_un));
|
||||
saddr.sun_family = AF_LOCAL;
|
||||
/* use abstract namespace for socket path */
|
||||
strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
|
||||
strcpy(&saddr.sun_path[1], UDEVD_CTRL_SOCK_PATH);
|
||||
addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
|
||||
|
||||
retval = sendto(sock, &usend_msg, sizeof(usend_msg), 0, (struct sockaddr *)&saddr, addrlen);
|
||||
retval = sendto(sock, &ctrl_msg, sizeof(ctrl_msg), 0, (struct sockaddr *)&saddr, addrlen);
|
||||
if (retval == -1) {
|
||||
err("error sending message: %s", strerror(errno));
|
||||
retval = 1;
|
||||
} else {
|
||||
dbg("sent message type=0x%02x, %u bytes sent", usend_msg.type, retval);
|
||||
dbg("sent message type=0x%02x, %u bytes sent", ctrl_msg.type, retval);
|
||||
retval = 0;
|
||||
}
|
||||
|
||||
|
||||
71
udevd.c
71
udevd.c
@ -1,7 +1,7 @@
|
||||
/*
|
||||
* udevd.c - event listener and serializer
|
||||
*
|
||||
* Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org>
|
||||
* Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
|
||||
* Copyright (C) 2004 Chris Friesen <chris_friesen@sympatico.ca>
|
||||
*
|
||||
*
|
||||
@ -86,7 +86,7 @@ static void asmlinkage udev_event_sig_handler(int signum)
|
||||
exit(1);
|
||||
}
|
||||
|
||||
static int udev_event_process(struct uevent_msg *msg)
|
||||
static int udev_event_process(struct udevd_uevent_msg *msg)
|
||||
{
|
||||
struct sigaction act;
|
||||
struct udevice *udev;
|
||||
@ -153,13 +153,13 @@ enum event_state {
|
||||
EVENT_FAILED,
|
||||
};
|
||||
|
||||
static void export_event_state(struct uevent_msg *msg, enum event_state state)
|
||||
static void export_event_state(struct udevd_uevent_msg *msg, enum event_state state)
|
||||
{
|
||||
char filename[PATH_SIZE];
|
||||
char filename_failed[PATH_SIZE];
|
||||
char target[PATH_SIZE];
|
||||
size_t start, end, i;
|
||||
struct uevent_msg *loop_msg;
|
||||
struct udevd_uevent_msg *loop_msg;
|
||||
|
||||
/* add location of queue files */
|
||||
strlcpy(filename, udev_root, sizeof(filename));
|
||||
@ -226,7 +226,7 @@ static void export_event_state(struct uevent_msg *msg, enum event_state state)
|
||||
}
|
||||
}
|
||||
|
||||
static void msg_queue_delete(struct uevent_msg *msg)
|
||||
static void msg_queue_delete(struct udevd_uevent_msg *msg)
|
||||
{
|
||||
list_del(&msg->node);
|
||||
|
||||
@ -239,7 +239,7 @@ static void msg_queue_delete(struct uevent_msg *msg)
|
||||
free(msg);
|
||||
}
|
||||
|
||||
static void udev_event_run(struct uevent_msg *msg)
|
||||
static void udev_event_run(struct udevd_uevent_msg *msg)
|
||||
{
|
||||
pid_t pid;
|
||||
int retval;
|
||||
@ -278,7 +278,7 @@ static void udev_event_run(struct uevent_msg *msg)
|
||||
}
|
||||
}
|
||||
|
||||
static void msg_queue_insert(struct uevent_msg *msg)
|
||||
static void msg_queue_insert(struct udevd_uevent_msg *msg)
|
||||
{
|
||||
char filename[PATH_SIZE];
|
||||
int fd;
|
||||
@ -431,9 +431,9 @@ static int compare_devpath(const char *running, const char *waiting)
|
||||
}
|
||||
|
||||
/* returns still running task for the same device, its parent or its physical device */
|
||||
static int running_with_devpath(struct uevent_msg *msg, int limit)
|
||||
static int running_with_devpath(struct udevd_uevent_msg *msg, int limit)
|
||||
{
|
||||
struct uevent_msg *loop_msg;
|
||||
struct udevd_uevent_msg *loop_msg;
|
||||
int childs_count = 0;
|
||||
|
||||
list_for_each_entry(loop_msg, &running_list, node) {
|
||||
@ -464,8 +464,8 @@ static int running_with_devpath(struct uevent_msg *msg, int limit)
|
||||
/* exec queue management routine executes the events and serializes events in the same sequence */
|
||||
static void msg_queue_manager(void)
|
||||
{
|
||||
struct uevent_msg *loop_msg;
|
||||
struct uevent_msg *tmp_msg;
|
||||
struct udevd_uevent_msg *loop_msg;
|
||||
struct udevd_uevent_msg *tmp_msg;
|
||||
int running;
|
||||
|
||||
if (list_empty(&exec_list))
|
||||
@ -501,18 +501,18 @@ static void msg_queue_manager(void)
|
||||
}
|
||||
}
|
||||
|
||||
static struct uevent_msg *get_msg_from_envbuf(const char *buf, int buf_size)
|
||||
static struct udevd_uevent_msg *get_msg_from_envbuf(const char *buf, int buf_size)
|
||||
{
|
||||
int bufpos;
|
||||
int i;
|
||||
struct uevent_msg *msg;
|
||||
struct udevd_uevent_msg *msg;
|
||||
int major = 0;
|
||||
int minor = 0;
|
||||
|
||||
msg = malloc(sizeof(struct uevent_msg) + buf_size);
|
||||
msg = malloc(sizeof(struct udevd_uevent_msg) + buf_size);
|
||||
if (msg == NULL)
|
||||
return NULL;
|
||||
memset(msg, 0x00, sizeof(struct uevent_msg) + buf_size);
|
||||
memset(msg, 0x00, sizeof(struct udevd_uevent_msg) + buf_size);
|
||||
|
||||
/* copy environment buffer and reconstruct envp */
|
||||
memcpy(msg->envbuf, buf, buf_size);
|
||||
@ -558,9 +558,9 @@ static struct uevent_msg *get_msg_from_envbuf(const char *buf, int buf_size)
|
||||
}
|
||||
|
||||
/* receive the udevd message from userspace */
|
||||
static void get_udevd_msg(void)
|
||||
static void get_ctrl_msg(void)
|
||||
{
|
||||
struct udevd_msg ctrl_msg;
|
||||
struct udevd_ctrl_msg ctrl_msg;
|
||||
ssize_t size;
|
||||
struct msghdr smsg;
|
||||
struct cmsghdr *cmsg;
|
||||
@ -569,9 +569,9 @@ static void get_udevd_msg(void)
|
||||
char cred_msg[CMSG_SPACE(sizeof(struct ucred))];
|
||||
int *intval;
|
||||
|
||||
memset(&ctrl_msg, 0x00, sizeof(struct udevd_msg));
|
||||
memset(&ctrl_msg, 0x00, sizeof(struct udevd_ctrl_msg));
|
||||
iov.iov_base = &ctrl_msg;
|
||||
iov.iov_len = sizeof(struct udevd_msg);
|
||||
iov.iov_len = sizeof(struct udevd_ctrl_msg);
|
||||
|
||||
memset(&smsg, 0x00, sizeof(struct msghdr));
|
||||
smsg.msg_iov = &iov;
|
||||
@ -598,34 +598,34 @@ static void get_udevd_msg(void)
|
||||
return;
|
||||
}
|
||||
|
||||
if (strncmp(ctrl_msg.magic, UDEV_MAGIC, sizeof(UDEV_MAGIC)) != 0 ) {
|
||||
if (strncmp(ctrl_msg.magic, UDEVD_CTRL_MAGIC, sizeof(UDEVD_CTRL_MAGIC)) != 0 ) {
|
||||
err("message magic '%s' doesn't match, ignore it", ctrl_msg.magic);
|
||||
return;
|
||||
}
|
||||
|
||||
switch (ctrl_msg.type) {
|
||||
case UDEVD_STOP_EXEC_QUEUE:
|
||||
case UDEVD_CTRL_STOP_EXEC_QUEUE:
|
||||
info("udevd message (STOP_EXEC_QUEUE) received");
|
||||
stop_exec_q = 1;
|
||||
break;
|
||||
case UDEVD_START_EXEC_QUEUE:
|
||||
case UDEVD_CTRL_START_EXEC_QUEUE:
|
||||
info("udevd message (START_EXEC_QUEUE) received");
|
||||
stop_exec_q = 0;
|
||||
msg_queue_manager();
|
||||
break;
|
||||
case UDEVD_SET_LOG_LEVEL:
|
||||
intval = (int *) ctrl_msg.envbuf;
|
||||
case UDEVD_CTRL_SET_LOG_LEVEL:
|
||||
intval = (int *) ctrl_msg.buf;
|
||||
info("udevd message (SET_LOG_PRIORITY) received, udev_log_priority=%i", *intval);
|
||||
udev_log_priority = *intval;
|
||||
sprintf(udev_log, "UDEV_LOG=%i", udev_log_priority);
|
||||
putenv(udev_log);
|
||||
break;
|
||||
case UDEVD_SET_MAX_CHILDS:
|
||||
intval = (int *) ctrl_msg.envbuf;
|
||||
case UDEVD_CTRL_SET_MAX_CHILDS:
|
||||
intval = (int *) ctrl_msg.buf;
|
||||
info("udevd message (UDEVD_SET_MAX_CHILDS) received, max_childs=%i", *intval);
|
||||
max_childs = *intval;
|
||||
break;
|
||||
case UDEVD_RELOAD_RULES:
|
||||
case UDEVD_CTRL_RELOAD_RULES:
|
||||
info("udevd message (RELOAD_RULES) received");
|
||||
reload_config = 1;
|
||||
break;
|
||||
@ -635,9 +635,9 @@ static void get_udevd_msg(void)
|
||||
}
|
||||
|
||||
/* receive the kernel user event message and do some sanity checks */
|
||||
static struct uevent_msg *get_netlink_msg(void)
|
||||
static struct udevd_uevent_msg *get_netlink_msg(void)
|
||||
{
|
||||
struct uevent_msg *msg;
|
||||
struct udevd_uevent_msg *msg;
|
||||
int bufpos;
|
||||
ssize_t size;
|
||||
static char buffer[UEVENT_BUFFER_SIZE+512];
|
||||
@ -660,7 +660,6 @@ static struct uevent_msg *get_netlink_msg(void)
|
||||
msg = get_msg_from_envbuf(&buffer[bufpos], size-bufpos);
|
||||
if (msg == NULL)
|
||||
return NULL;
|
||||
msg->type = UDEVD_UEVENT_NETLINK;
|
||||
|
||||
/* validate message */
|
||||
pos = strchr(buffer, '@');
|
||||
@ -709,7 +708,7 @@ static void asmlinkage sig_handler(int signum)
|
||||
static void udev_done(int pid, int exitstatus)
|
||||
{
|
||||
/* find msg associated with pid and delete it */
|
||||
struct uevent_msg *msg;
|
||||
struct udevd_uevent_msg *msg;
|
||||
|
||||
list_for_each_entry(msg, &running_list, node) {
|
||||
if (msg->pid == pid) {
|
||||
@ -755,7 +754,7 @@ static int init_udevd_socket(void)
|
||||
memset(&saddr, 0x00, sizeof(saddr));
|
||||
saddr.sun_family = AF_LOCAL;
|
||||
/* use abstract namespace for socket path */
|
||||
strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
|
||||
strcpy(&saddr.sun_path[1], UDEVD_CTRL_SOCK_PATH);
|
||||
addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
|
||||
|
||||
udevd_sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
|
||||
@ -1026,7 +1025,7 @@ int main(int argc, char *argv[], char *envp[])
|
||||
maxfd = UDEV_MAX(maxfd, inotify_fd);
|
||||
|
||||
while (!udev_exit) {
|
||||
struct uevent_msg *msg;
|
||||
struct udevd_uevent_msg *msg;
|
||||
int fdcount;
|
||||
|
||||
FD_ZERO(&readfds);
|
||||
@ -1043,11 +1042,11 @@ int main(int argc, char *argv[], char *envp[])
|
||||
continue;
|
||||
}
|
||||
|
||||
/* get user socket message */
|
||||
/* get control message */
|
||||
if (FD_ISSET(udevd_sock, &readfds))
|
||||
get_udevd_msg();
|
||||
get_ctrl_msg();
|
||||
|
||||
/* get kernel netlink message */
|
||||
/* get netlink message */
|
||||
if (FD_ISSET(uevent_netlink_sock, &readfds)) {
|
||||
msg = get_netlink_msg();
|
||||
if (msg)
|
||||
|
||||
35
udevd.h
35
udevd.h
@ -21,9 +21,6 @@
|
||||
|
||||
#include "list.h"
|
||||
|
||||
#define UDEV_MAGIC "udevd_" UDEV_VERSION
|
||||
#define UDEVD_SOCK_PATH "/org/kernel/udev/udevd"
|
||||
|
||||
#define UDEVD_PRIORITY -4
|
||||
#define UDEV_PRIORITY -2
|
||||
|
||||
@ -36,29 +33,29 @@
|
||||
/* start to throttle forking if maximum number of running childs in our session is reached */
|
||||
#define UDEVD_MAX_CHILDS_RUNNING 16
|
||||
|
||||
/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
|
||||
/* linux/include/linux/kobject.h */
|
||||
#define UEVENT_BUFFER_SIZE 2048
|
||||
#define UEVENT_NUM_ENVP 64
|
||||
#define UEVENT_NUM_ENVP 32
|
||||
|
||||
enum udevd_msg_type {
|
||||
UDEVD_UNKNOWN,
|
||||
UDEVD_UEVENT_NETLINK,
|
||||
UDEVD_STOP_EXEC_QUEUE,
|
||||
UDEVD_START_EXEC_QUEUE,
|
||||
UDEVD_SET_LOG_LEVEL,
|
||||
UDEVD_SET_MAX_CHILDS,
|
||||
UDEVD_RELOAD_RULES,
|
||||
#define UDEVD_CTRL_SOCK_PATH "/org/kernel/udev/udevd"
|
||||
#define UDEVD_CTRL_MAGIC "udevd_" UDEV_VERSION
|
||||
|
||||
enum udevd_ctrl_msg_type {
|
||||
UDEVD_CTRL_UNKNOWN,
|
||||
UDEVD_CTRL_STOP_EXEC_QUEUE,
|
||||
UDEVD_CTRL_START_EXEC_QUEUE,
|
||||
UDEVD_CTRL_SET_LOG_LEVEL,
|
||||
UDEVD_CTRL_SET_MAX_CHILDS,
|
||||
UDEVD_CTRL_RELOAD_RULES,
|
||||
};
|
||||
|
||||
|
||||
struct udevd_msg {
|
||||
struct udevd_ctrl_msg {
|
||||
char magic[32];
|
||||
enum udevd_msg_type type;
|
||||
char envbuf[UEVENT_BUFFER_SIZE+512];
|
||||
enum udevd_ctrl_msg_type type;
|
||||
char buf[256];
|
||||
};
|
||||
|
||||
struct uevent_msg {
|
||||
enum udevd_msg_type type;
|
||||
struct udevd_uevent_msg {
|
||||
struct list_head node;
|
||||
pid_t pid;
|
||||
int exitstatus;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user