{
struct udev_event *event;
- event = malloc(sizeof(struct udev_event));
+ event = calloc(1, sizeof(struct udev_event));
if (event == NULL)
return NULL;
- memset(event, 0x00, sizeof(struct udev_event));
-
event->dev = dev;
event->udev = udev_device_get_udev(dev);
udev_list_init(&event->run_list);
event->mode = 0660;
- util_strlcpy(event->owner, "0", sizeof(event->owner));
- util_strlcpy(event->group, "0", sizeof(event->group));
-
dbg(event->udev, "allocated event %p\n", event);
return event;
}
void udev_event_unref(struct udev_event *event)
{
+ if (event == NULL)
+ return;
udev_list_cleanup_entries(event->udev, &event->run_list);
+ free(event->tmp_node);
+ free(event->program_result);
+ free(event->name);
dbg(event->udev, "free event %p\n", event);
free(event);
}
return -1;
}
-/* handle "[<SUBSYSTEM>/<KERNEL>]<attribute>" format */
-int udev_event_apply_subsys_kernel(struct udev_event *udev_event, const char *string,
- char *result, size_t maxsize, int read_value)
-{
- char temp[UTIL_PATH_SIZE];
- char *subsys;
- char *sysname;
- char *attr;
- struct udev_device *dev;
-
- if (string == NULL)
- string = result;
- if (string[0] != '[')
- return -1;
-
- util_strlcpy(temp, string, sizeof(temp));
-
- subsys = &temp[1];
-
- sysname = strchr(subsys, '/');
- if (sysname == NULL)
- return -1;
- sysname[0] = '\0';
- sysname = &sysname[1];
-
- attr = strchr(sysname, ']');
- if (attr == NULL)
- return -1;
- attr[0] = '\0';
- attr = &attr[1];
- if (attr[0] == '/')
- attr = &attr[1];
- if (attr[0] == '\0')
- attr = NULL;
-
- if (read_value && attr == NULL)
- return -1;
-
- dev = udev_device_new_from_subsystem_sysname(udev_event->udev, subsys, sysname);
- if (dev == NULL)
- return -1;
-
- if (read_value) {
- const char *val;
-
- val = udev_device_get_attr_value(dev, attr);
- if (val != NULL)
- util_strlcpy(result, val, maxsize);
- else
- result[0] = '\0';
- info(udev_event->udev, "value '[%s/%s]%s' is '%s'\n", subsys, sysname, attr, result);
- } else {
- util_strlcpy(result, udev_device_get_syspath(dev), maxsize);
- if (attr != NULL) {
- util_strlcat(result, "/", maxsize);
- util_strlcat(result, attr, maxsize);
- }
- info(udev_event->udev, "path '[%s/%s]%s' is '%s'\n", subsys, sysname, attr, result);
- }
- udev_device_unref(dev);
- return 0;
-}
-
void udev_event_apply_format(struct udev_event *event, char *string, size_t maxsize)
{
struct udev_device *dev = event->dev;
dbg(event->udev, "substitute minor number '%s'\n", temp2);
break;
case SUBST_RESULT:
- if (event->program_result[0] == '\0')
+ if (event->program_result == NULL)
break;
/* get part part of the result string */
i = 0;
if (attr != NULL)
i = strtoul(attr, &rest, 10);
if (i > 0) {
+ char result[UTIL_PATH_SIZE];
+
dbg(event->udev, "request part #%d of result string\n", i);
- cpos = event->program_result;
+ util_strlcpy(result, event->program_result, sizeof(result));
+ cpos = result;
while (--i) {
while (cpos[0] != '\0' && !isspace(cpos[0]))
cpos++;
if (attr == NULL)
err(event->udev, "missing file parameter for attr\n");
else {
- char value[UTIL_NAME_SIZE] = "";
+ const char *val;
+ char value[UTIL_NAME_SIZE];
size_t size;
- udev_event_apply_subsys_kernel(event, attr, value, sizeof(value), 1);
+ value[0] = '\0';
+ /* read the value specified by [usb/]*/
+ util_resolve_subsys_kernel(event->udev, attr, value, sizeof(value), 1);
- /* try the current device, other matches may have selected */
- if (value[0] == '\0' && event->dev_parent != NULL && event->dev_parent != event->dev) {
- const char *val;
-
- val = udev_device_get_attr_value(event->dev_parent, attr);
+ /* try to read attribute of the current device */
+ if (value[0] == '\0') {
+ val = udev_device_get_sysattr_value(event->dev, attr);
if (val != NULL)
util_strlcpy(value, val, sizeof(value));
}
- /* look at all devices along the chain of parents */
- if (value[0] == '\0') {
- struct udev_device *dev_parent = dev;
- const char *val;
-
- do {
- dbg(event->udev, "looking at '%s'\n", udev_device_get_syspath(dev_parent));
- val = udev_device_get_attr_value(dev_parent, attr);
- if (val != NULL) {
- util_strlcpy(value, val, sizeof(value));
- break;
- }
- dev_parent = udev_device_get_parent(dev_parent);
- } while (dev_parent != NULL);
+ /* try to read the attribute of the parent device, other matches have selected */
+ if (value[0] == '\0' && event->dev_parent != NULL && event->dev_parent != event->dev) {
+ val = udev_device_get_sysattr_value(event->dev_parent, attr);
+ if (val != NULL)
+ util_strlcpy(value, val, sizeof(value));
}
if (value[0]=='\0')
size = strlen(value);
while (size > 0 && isspace(value[--size]))
value[size] = '\0';
- count = util_replace_chars(value, ALLOWED_CHARS_INPUT);
+ count = udev_util_replace_chars(value, UDEV_ALLOWED_CHARS_INPUT);
if (count > 0)
info(event->udev, "%i character(s) replaced\n" , count);
util_strlcat(string, value, maxsize);
}
break;
case SUBST_TEMP_NODE:
- if (event->tmp_node[0] == '\0' && major(udev_device_get_devnum(dev)) > 0) {
- dbg(event->udev, "create temporary device node for callout\n");
- snprintf(event->tmp_node, sizeof(event->tmp_node), "%s/.tmp-%u-%u",
- udev_get_dev_path(event->udev),
- major(udev_device_get_devnum(dev)), minor(udev_device_get_devnum(dev)));
- udev_node_mknod(dev, event->tmp_node, makedev(0,0), 0600, 0, 0);
+ {
+ dev_t devnum;
+ struct stat statbuf;
+ char filename[UTIL_PATH_SIZE];
+ const char *devtype;
+
+ if (event->tmp_node != NULL) {
+ util_strlcat(string, event->tmp_node, maxsize);
+ dbg(event->udev, "return existing temporary node\n");
+ break;
+ }
+ devnum = udev_device_get_devnum(dev);
+ if (major(udev_device_get_devnum(dev) == 0))
+ break;
+ if (strcmp(udev_device_get_subsystem(dev), "block") == 0)
+ devtype = "block";
+ else
+ devtype = "char";
+ snprintf(filename, sizeof(filename), "%s/%s/%u:%u",
+ udev_get_dev_path(event->udev), devtype,
+ major(udev_device_get_devnum(dev)),
+ minor(udev_device_get_devnum(dev)));
+ if (stat(filename, &statbuf) == 0 && statbuf.st_rdev == devnum) {
+ util_strlcat(string, filename, maxsize);
+ dbg(event->udev, "return existing temporary node\n");
+ break;
+ }
+ dbg(event->udev, "create temporary node\n");
+ asprintf(&event->tmp_node, "%s/.tmp-%s-%u:%u",
+ udev_get_dev_path(event->udev), devtype,
+ major(udev_device_get_devnum(dev)),
+ minor(udev_device_get_devnum(dev)));
+ if (event->tmp_node == NULL)
+ break;
+ udev_node_mknod(dev, event->tmp_node, makedev(0, 0), 0600, 0, 0);
+ util_strlcat(string, event->tmp_node, maxsize);
}
- util_strlcat(string, event->tmp_node, maxsize);
- dbg(event->udev, "substitute temporary device node name '%s'\n", event->tmp_node);
break;
case SUBST_NAME:
if (event->name != NULL) {
break;
case SUBST_LINKS:
{
+ size_t devlen = strlen(udev_get_dev_path(event->udev))+1;
struct udev_list_entry *list_entry;
- list_entry = udev_device_get_properties_list_entry(dev);
- util_strlcpy(string, udev_list_entry_get_name(list_entry), maxsize);
+ list_entry = udev_device_get_devlinks_list_entry(dev);
+ util_strlcat(string, &udev_list_entry_get_name(list_entry)[devlen], maxsize);
udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry)) {
util_strlcat(string, " ", maxsize);
- util_strlcat(string, udev_list_entry_get_name(list_entry), maxsize);
+ util_strlcat(string, &udev_list_entry_get_name(list_entry)[devlen], maxsize);
}
}
break;
dbg(event->udev, "device node add '%s'\n", udev_device_get_devpath(dev));
- udev_rules_get_name(rules, event);
+ udev_rules_apply_to_event(rules, event);
+ if (event->tmp_node != NULL) {
+ dbg(event->udev, "removing temporary device node\n");
+ util_unlink_secure(event->udev, event->tmp_node);
+ free(event->tmp_node);
+ event->tmp_node = NULL;
+ }
+
if (event->ignore_device) {
info(event->udev, "device event will be ignored\n");
goto exit;
}
- if (event->name[0] == '\0') {
+ if (event->name != NULL && event->name[0] == '\0') {
info(event->udev, "device node creation supressed\n");
goto exit;
}
+ if (event->name == NULL) {
+ info(event->udev, "no node name set, will use kernel name '%s'\n",
+ udev_device_get_sysname(event->dev));
+ event->name = strdup(udev_device_get_sysname(event->dev));
+ if (event->name == NULL)
+ goto exit;
+ }
+
/* set device node name */
util_strlcpy(filename, udev_get_dev_path(event->udev), sizeof(filename));
util_strlcat(filename, "/", sizeof(filename));
util_strlcat(filename, event->name, sizeof(filename));
udev_device_set_devnode(dev, filename);
- /* read current database entry; cleanup, if it is known device */
+ /* read current database entry */
dev_old = udev_device_new_from_syspath(event->udev, udev_device_get_syspath(dev));
if (dev_old != NULL) {
- info(event->udev, "device '%s' already in database, updating\n",
- udev_device_get_devpath(dev));
- udev_node_update_old_links(dev, dev_old, event->test);
- udev_device_unref(dev_old);
+ udev_device_read_db(dev_old);
+ udev_device_set_info_loaded(dev_old);
}
+ /* update database, create node and symlinks */
udev_device_update_db(dev);
+ err = udev_node_add(dev, event->mode, event->uid, event->gid, event->test);
- err = udev_node_add(dev, event->mode, event->owner, event->group, event->test);
- if (err != 0)
- goto exit;
-
+ /* remove/update possible left-over symlinks from old database entry */
+ if (dev_old != NULL) {
+ udev_node_update_old_links(dev, dev_old, event->test);
+ udev_device_unref(dev_old);
+ }
goto exit;
}
if (strcmp(udev_device_get_subsystem(dev), "net") == 0 && strcmp(udev_device_get_action(dev), "add") == 0) {
dbg(event->udev, "netif add '%s'\n", udev_device_get_devpath(dev));
- udev_rules_get_name(rules, event);
+ udev_rules_apply_to_event(rules, event);
if (event->ignore_device) {
info(event->udev, "device event will be ignored\n");
goto exit;
}
- if (event->name[0] == '\0') {
- info(event->udev, "device renaming supressed\n");
+ if (event->name == NULL)
goto exit;
- }
/* look if we want to change the name of the netif */
if (strcmp(event->name, udev_device_get_sysname(dev)) != 0) {
if (major(udev_device_get_devnum(dev)) != 0 && strcmp(udev_device_get_action(dev), "remove") == 0) {
/* import database entry and delete it */
udev_device_read_db(dev);
- if (!event->test)
- udev_device_delete_db(dev);
+ udev_device_set_info_loaded(dev);
+ udev_device_delete_db(dev);
if (udev_device_get_devnode(dev) == NULL) {
char devnode[UTIL_PATH_SIZE];
udev_device_set_devnode(dev, devnode);
}
- udev_rules_get_run(rules, event);
+ udev_rules_apply_to_event(rules, event);
if (event->ignore_device) {
info(event->udev, "device event will be ignored\n");
goto exit;
}
/* default devices */
- udev_rules_get_run(rules, event);
+ udev_rules_apply_to_event(rules, event);
if (event->ignore_device)
info(event->udev, "device event will be ignored\n");
exit:
util_strlcpy(program, cmd, sizeof(program));
udev_event_apply_format(event, program, sizeof(program));
+ if (event->trace)
+ fprintf(stderr, "run %s (%llu) '%s'\n",
+ udev_device_get_syspath(event->dev),
+ udev_device_get_seqnum(event->dev),
+ program);
envp = udev_device_get_properties_envp(event->dev);
- if (run_program(event->udev, program, envp, NULL, 0, NULL) != 0) {
+ if (util_run_program(event->udev, program, envp, NULL, 0, NULL) != 0) {
if (!udev_list_entry_get_flag(list_entry))
err = -1;
}
~ianmdlvl / elogind.git / blobdiff