#include "udev.h"
-static int uevent_netlink_sock = -1;
static int udev_exit;
-static int init_uevent_netlink_sock(void)
-{
- struct sockaddr_nl snl;
- int err;
-
- memset(&snl, 0x00, sizeof(struct sockaddr_nl));
- snl.nl_family = AF_NETLINK;
- snl.nl_pid = getpid();
- snl.nl_groups = 1;
-
- uevent_netlink_sock = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);
- if (uevent_netlink_sock == -1) {
- fprintf(stderr, "error getting socket: %s\n", strerror(errno));
- return -1;
- }
-
- err = bind(uevent_netlink_sock, (struct sockaddr *) &snl,
- sizeof(struct sockaddr_nl));
- if (err < 0) {
- fprintf(stderr, "bind failed: %s\n", strerror(errno));
- close(uevent_netlink_sock);
- uevent_netlink_sock = -1;
- return -1;
- }
-
- return 0;
-}
-
static void asmlinkage sig_handler(int signum)
{
if (signum == SIGINT || signum == SIGTERM)
udev_exit = 1;
}
-static const char *search_key(const char *searchkey, const char *buf, size_t buflen)
+static int print_properties_cb(struct udev_device *udev_device, const char *key, const char *value, void *data)
{
- size_t bufpos = 0;
- size_t searchkeylen = strlen(searchkey);
-
- while (bufpos < buflen) {
- const char *key;
- int keylen;
+ printf("%s=%s\n", key, value);
+ return 0;
+}
- key = &buf[bufpos];
- keylen = strlen(key);
- if (keylen == 0)
- break;
- if ((strncmp(searchkey, key, searchkeylen) == 0) && key[searchkeylen] == '=')
- return &key[searchkeylen + 1];
- bufpos += keylen + 1;
- }
- return NULL;
+static void print_properties(struct udev_device *device)
+{
+ udev_device_get_properties(device, print_properties_cb, NULL);
+ printf("\n");
}
int udevadm_monitor(struct udev *udev, int argc, char *argv[])
int print_kernel = 0;
int print_udev = 0;
struct udev_monitor *udev_monitor = NULL;
+ struct udev_monitor *kernel_monitor = NULL;
fd_set readfds;
int rc = 0;
printf("UDEV the event which udev sends out after rule processing\n");
}
if (print_kernel) {
- if (init_uevent_netlink_sock() < 0) {
+ kernel_monitor = udev_monitor_new_from_netlink(udev);
+ if (kernel_monitor == NULL) {
rc = 3;
goto out;
}
+ if (udev_monitor_enable_receiving(kernel_monitor) < 0) {
+ rc = 4;
+ goto out;
+ }
printf("UEVENT the kernel uevent\n");
}
printf("\n");
while (!udev_exit) {
- char buf[UEVENT_BUFFER_SIZE*2];
- ssize_t buflen;
- ssize_t bufpos;
- ssize_t keys;
int fdcount;
struct timeval tv;
struct timezone tz;
char timestr[64];
- const char *source = NULL;
- const char *devpath, *action, *subsys;
- buflen = 0;
FD_ZERO(&readfds);
- if (uevent_netlink_sock >= 0)
- FD_SET(uevent_netlink_sock, &readfds);
+ if (kernel_monitor != NULL)
+ FD_SET(udev_monitor_get_fd(kernel_monitor), &readfds);
if (udev_monitor != NULL)
FD_SET(udev_monitor_get_fd(udev_monitor), &readfds);
- fdcount = select(UDEV_MAX(uevent_netlink_sock, udev_monitor_get_fd(udev_monitor))+1,
+ fdcount = select(UDEV_MAX(udev_monitor_get_fd(kernel_monitor), udev_monitor_get_fd(udev_monitor))+1,
&readfds, NULL, NULL, NULL);
if (fdcount < 0) {
if (errno != EINTR)
} else
timestr[0] = '\0';
- if ((uevent_netlink_sock >= 0) && FD_ISSET(uevent_netlink_sock, &readfds)) {
- buflen = recv(uevent_netlink_sock, &buf, sizeof(buf), 0);
- if (buflen <= 0) {
- fprintf(stderr, "error receiving uevent message: %s\n", strerror(errno));
+ if ((kernel_monitor != NULL) && FD_ISSET(udev_monitor_get_fd(kernel_monitor), &readfds)) {
+ struct udev_device *device = udev_monitor_receive_device(kernel_monitor);
+ if (device == NULL)
continue;
- }
- source = "UEVENT";
+ printf("UEVENT[%s] %-8s %s (%s)\n", timestr,
+ udev_device_get_action(device),
+ udev_device_get_devpath(device),
+ udev_device_get_subsystem(device));
+ if (env)
+ print_properties(device);
+ udev_device_unref(device);
}
if ((udev_monitor != NULL) && FD_ISSET(udev_monitor_get_fd(udev_monitor), &readfds)) {
- buflen = recv(udev_monitor_get_fd(udev_monitor), &buf, sizeof(buf), 0);
- if (buflen <= 0) {
- fprintf(stderr, "error receiving udev message: %s\n", strerror(errno));
+ struct udev_device *device = udev_monitor_receive_device(udev_monitor);
+ if (device == NULL)
continue;
- }
- source = "UDEV ";
- }
-
- if (buflen == 0)
- continue;
-
- keys = strlen(buf) + 1; /* start of payload */
- devpath = search_key("DEVPATH", &buf[keys], buflen);
- action = search_key("ACTION", &buf[keys], buflen);
- subsys = search_key("SUBSYSTEM", &buf[keys], buflen);
- printf("%s[%s] %-8s %s (%s)\n", source, timestr, action, devpath, subsys);
-
- /* print environment */
- bufpos = keys;
- if (env) {
- while (bufpos < buflen) {
- int keylen;
- char *key;
-
- key = &buf[bufpos];
- keylen = strlen(key);
- if (keylen == 0)
- break;
- printf("%s\n", key);
- bufpos += keylen + 1;
- }
- printf("\n");
+ printf("UDEV [%s] %-8s %s (%s)\n", timestr,
+ udev_device_get_action(device),
+ udev_device_get_devpath(device),
+ udev_device_get_subsystem(device));
+ if (env)
+ print_properties(device);
+ udev_device_unref(device);
}
}
out:
udev_monitor_unref(udev_monitor);
- if (uevent_netlink_sock >= 0)
- close(uevent_netlink_sock);
-
+ udev_monitor_unref(kernel_monitor);
return rc;
}
~ianmdlvl / elogind.git / blobdiff