* Opaque object representing one kernel sys device.
*/
struct udev_device {
- struct udev *udev;
- struct udev_device *parent_device;
- char *syspath;
- const char *devpath;
- char *sysname;
- const char *sysnum;
- char *devnode;
- mode_t devnode_mode;
- char *subsystem;
- char *devtype;
- char *driver;
- char *action;
- char *devpath_old;
- char *id_filename;
- char **envp;
- char *monitor_buf;
- size_t monitor_buf_len;
- struct udev_list devlinks_list;
- struct udev_list properties_list;
- struct udev_list sysattr_value_list;
- struct udev_list sysattr_list;
- struct udev_list tags_list;
- unsigned long long int seqnum;
- unsigned long long int usec_initialized;
- int devlink_priority;
- int refcount;
- dev_t devnum;
- int ifindex;
- int watch_handle;
- int maj, min;
- bool parent_set;
- bool subsystem_set;
- bool devtype_set;
- bool devlinks_uptodate;
- bool envp_uptodate;
- bool tags_uptodate;
- bool driver_set;
- bool info_loaded;
- bool db_loaded;
- bool uevent_loaded;
- bool is_initialized;
- bool sysattr_list_read;
- bool db_persist;
+ struct udev *udev;
+ struct udev_device *parent_device;
+ char *syspath;
+ const char *devpath;
+ char *sysname;
+ const char *sysnum;
+ char *devnode;
+ mode_t devnode_mode;
+ char *subsystem;
+ char *devtype;
+ char *driver;
+ char *action;
+ char *devpath_old;
+ char *id_filename;
+ char **envp;
+ char *monitor_buf;
+ size_t monitor_buf_len;
+ struct udev_list devlinks_list;
+ struct udev_list properties_list;
+ struct udev_list sysattr_value_list;
+ struct udev_list sysattr_list;
+ struct udev_list tags_list;
+ unsigned long long int seqnum;
+ unsigned long long int usec_initialized;
+ int devlink_priority;
+ int refcount;
+ dev_t devnum;
+ int ifindex;
+ int watch_handle;
+ int maj, min;
+ bool parent_set;
+ bool subsystem_set;
+ bool devtype_set;
+ bool devlinks_uptodate;
+ bool envp_uptodate;
+ bool tags_uptodate;
+ bool driver_set;
+ bool info_loaded;
+ bool db_loaded;
+ bool uevent_loaded;
+ bool is_initialized;
+ bool sysattr_list_read;
+ bool db_persist;
};
/**
**/
UDEV_EXPORT unsigned long long int udev_device_get_seqnum(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return 0;
- return udev_device->seqnum;
+ if (udev_device == NULL)
+ return 0;
+ return udev_device->seqnum;
}
static int udev_device_set_seqnum(struct udev_device *udev_device, unsigned long long int seqnum)
{
- char num[32];
+ char num[32];
- udev_device->seqnum = seqnum;
- snprintf(num, sizeof(num), "%llu", seqnum);
- udev_device_add_property(udev_device, "SEQNUM", num);
- return 0;
+ udev_device->seqnum = seqnum;
+ snprintf(num, sizeof(num), "%llu", seqnum);
+ udev_device_add_property(udev_device, "SEQNUM", num);
+ return 0;
}
int udev_device_get_ifindex(struct udev_device *udev_device)
{
- if (!udev_device->info_loaded)
- udev_device_read_uevent_file(udev_device);
- return udev_device->ifindex;
+ if (!udev_device->info_loaded)
+ udev_device_read_uevent_file(udev_device);
+ return udev_device->ifindex;
}
static int udev_device_set_ifindex(struct udev_device *udev_device, int ifindex)
{
- char num[32];
+ char num[32];
- udev_device->ifindex = ifindex;
- snprintf(num, sizeof(num), "%u", ifindex);
- udev_device_add_property(udev_device, "IFINDEX", num);
- return 0;
+ udev_device->ifindex = ifindex;
+ snprintf(num, sizeof(num), "%u", ifindex);
+ udev_device_add_property(udev_device, "IFINDEX", num);
+ return 0;
}
/**
**/
UDEV_EXPORT dev_t udev_device_get_devnum(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return makedev(0, 0);
- if (!udev_device->info_loaded)
- udev_device_read_uevent_file(udev_device);
- return udev_device->devnum;
+ if (udev_device == NULL)
+ return makedev(0, 0);
+ if (!udev_device->info_loaded)
+ udev_device_read_uevent_file(udev_device);
+ return udev_device->devnum;
}
static int udev_device_set_devnum(struct udev_device *udev_device, dev_t devnum)
{
- char num[32];
+ char num[32];
- udev_device->devnum = devnum;
+ udev_device->devnum = devnum;
- snprintf(num, sizeof(num), "%u", major(devnum));
- udev_device_add_property(udev_device, "MAJOR", num);
- snprintf(num, sizeof(num), "%u", minor(devnum));
- udev_device_add_property(udev_device, "MINOR", num);
- return 0;
+ snprintf(num, sizeof(num), "%u", major(devnum));
+ udev_device_add_property(udev_device, "MAJOR", num);
+ snprintf(num, sizeof(num), "%u", minor(devnum));
+ udev_device_add_property(udev_device, "MINOR", num);
+ return 0;
}
const char *udev_device_get_devpath_old(struct udev_device *udev_device)
{
- return udev_device->devpath_old;
+ return udev_device->devpath_old;
}
static int udev_device_set_devpath_old(struct udev_device *udev_device, const char *devpath_old)
{
- const char *pos;
+ const char *pos;
- free(udev_device->devpath_old);
- udev_device->devpath_old = strdup(devpath_old);
- if (udev_device->devpath_old == NULL)
- return -ENOMEM;
- udev_device_add_property(udev_device, "DEVPATH_OLD", udev_device->devpath_old);
+ free(udev_device->devpath_old);
+ udev_device->devpath_old = strdup(devpath_old);
+ if (udev_device->devpath_old == NULL)
+ return -ENOMEM;
+ udev_device_add_property(udev_device, "DEVPATH_OLD", udev_device->devpath_old);
- pos = strrchr(udev_device->devpath_old, '/');
- if (pos == NULL)
- return -EINVAL;
- return 0;
+ pos = strrchr(udev_device->devpath_old, '/');
+ if (pos == NULL)
+ return -EINVAL;
+ return 0;
}
/**
**/
UDEV_EXPORT const char *udev_device_get_driver(struct udev_device *udev_device)
{
- char driver[UTIL_NAME_SIZE];
+ char driver[UTIL_NAME_SIZE];
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->driver_set) {
- udev_device->driver_set = true;
- if (util_get_sys_core_link_value(udev_device->udev, "driver", udev_device->syspath, driver, sizeof(driver)) > 0)
- udev_device->driver = strdup(driver);
- }
- return udev_device->driver;
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->driver_set) {
+ udev_device->driver_set = true;
+ if (util_get_sys_core_link_value(udev_device->udev, "driver", udev_device->syspath, driver, sizeof(driver)) > 0)
+ udev_device->driver = strdup(driver);
+ }
+ return udev_device->driver;
}
static int udev_device_set_driver(struct udev_device *udev_device, const char *driver)
{
- free(udev_device->driver);
- udev_device->driver = strdup(driver);
- if (udev_device->driver == NULL)
- return -ENOMEM;
- udev_device->driver_set = true;
- udev_device_add_property(udev_device, "DRIVER", udev_device->driver);
- return 0;
+ free(udev_device->driver);
+ udev_device->driver = strdup(driver);
+ if (udev_device->driver == NULL)
+ return -ENOMEM;
+ udev_device->driver_set = true;
+ udev_device_add_property(udev_device, "DRIVER", udev_device->driver);
+ return 0;
}
/**
**/
UDEV_EXPORT const char *udev_device_get_devtype(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->devtype_set) {
- udev_device->devtype_set = true;
- udev_device_read_uevent_file(udev_device);
- }
- return udev_device->devtype;
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->devtype_set) {
+ udev_device->devtype_set = true;
+ udev_device_read_uevent_file(udev_device);
+ }
+ return udev_device->devtype;
}
static int udev_device_set_devtype(struct udev_device *udev_device, const char *devtype)
{
- free(udev_device->devtype);
- udev_device->devtype = strdup(devtype);
- if (udev_device->devtype == NULL)
- return -ENOMEM;
- udev_device->devtype_set = true;
- udev_device_add_property(udev_device, "DEVTYPE", udev_device->devtype);
- return 0;
+ free(udev_device->devtype);
+ udev_device->devtype = strdup(devtype);
+ if (udev_device->devtype == NULL)
+ return -ENOMEM;
+ udev_device->devtype_set = true;
+ udev_device_add_property(udev_device, "DEVTYPE", udev_device->devtype);
+ return 0;
}
static int udev_device_set_subsystem(struct udev_device *udev_device, const char *subsystem)
{
- free(udev_device->subsystem);
- udev_device->subsystem = strdup(subsystem);
- if (udev_device->subsystem == NULL)
- return -ENOMEM;
- udev_device->subsystem_set = true;
- udev_device_add_property(udev_device, "SUBSYSTEM", udev_device->subsystem);
- return 0;
+ free(udev_device->subsystem);
+ udev_device->subsystem = strdup(subsystem);
+ if (udev_device->subsystem == NULL)
+ return -ENOMEM;
+ udev_device->subsystem_set = true;
+ udev_device_add_property(udev_device, "SUBSYSTEM", udev_device->subsystem);
+ return 0;
}
/**
**/
UDEV_EXPORT const char *udev_device_get_subsystem(struct udev_device *udev_device)
{
- char subsystem[UTIL_NAME_SIZE];
-
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->subsystem_set) {
- udev_device->subsystem_set = true;
- /* read "subsystem" link */
- if (util_get_sys_core_link_value(udev_device->udev, "subsystem", udev_device->syspath, subsystem, sizeof(subsystem)) > 0) {
- udev_device_set_subsystem(udev_device, subsystem);
- return udev_device->subsystem;
- }
- /* implicit names */
- if (strncmp(udev_device->devpath, "/module/", 8) == 0) {
- udev_device_set_subsystem(udev_device, "module");
- return udev_device->subsystem;
- }
- if (strstr(udev_device->devpath, "/drivers/") != NULL) {
- udev_device_set_subsystem(udev_device, "drivers");
- return udev_device->subsystem;
- }
- if (strncmp(udev_device->devpath, "/subsystem/", 11) == 0 ||
- strncmp(udev_device->devpath, "/class/", 7) == 0 ||
- strncmp(udev_device->devpath, "/bus/", 5) == 0) {
- udev_device_set_subsystem(udev_device, "subsystem");
- return udev_device->subsystem;
- }
- }
- return udev_device->subsystem;
+ char subsystem[UTIL_NAME_SIZE];
+
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->subsystem_set) {
+ udev_device->subsystem_set = true;
+ /* read "subsystem" link */
+ if (util_get_sys_core_link_value(udev_device->udev, "subsystem", udev_device->syspath, subsystem, sizeof(subsystem)) > 0) {
+ udev_device_set_subsystem(udev_device, subsystem);
+ return udev_device->subsystem;
+ }
+ /* implicit names */
+ if (strncmp(udev_device->devpath, "/module/", 8) == 0) {
+ udev_device_set_subsystem(udev_device, "module");
+ return udev_device->subsystem;
+ }
+ if (strstr(udev_device->devpath, "/drivers/") != NULL) {
+ udev_device_set_subsystem(udev_device, "drivers");
+ return udev_device->subsystem;
+ }
+ if (strncmp(udev_device->devpath, "/subsystem/", 11) == 0 ||
+ strncmp(udev_device->devpath, "/class/", 7) == 0 ||
+ strncmp(udev_device->devpath, "/bus/", 5) == 0) {
+ udev_device_set_subsystem(udev_device, "subsystem");
+ return udev_device->subsystem;
+ }
+ }
+ return udev_device->subsystem;
}
mode_t udev_device_get_devnode_mode(struct udev_device *udev_device)
{
- if (!udev_device->info_loaded)
- udev_device_read_uevent_file(udev_device);
- return udev_device->devnode_mode;
+ if (!udev_device->info_loaded)
+ udev_device_read_uevent_file(udev_device);
+ return udev_device->devnode_mode;
}
static int udev_device_set_devnode_mode(struct udev_device *udev_device, mode_t mode)
{
- char num[32];
+ char num[32];
- udev_device->devnode_mode = mode;
- snprintf(num, sizeof(num), "%#o", mode);
- udev_device_add_property(udev_device, "DEVMODE", num);
- return 0;
+ udev_device->devnode_mode = mode;
+ snprintf(num, sizeof(num), "%#o", mode);
+ udev_device_add_property(udev_device, "DEVMODE", num);
+ return 0;
}
struct udev_list_entry *udev_device_add_property(struct udev_device *udev_device, const char *key, const char *value)
{
- udev_device->envp_uptodate = false;
- if (value == NULL) {
- struct udev_list_entry *list_entry;
+ udev_device->envp_uptodate = false;
+ if (value == NULL) {
+ struct udev_list_entry *list_entry;
- list_entry = udev_device_get_properties_list_entry(udev_device);
- list_entry = udev_list_entry_get_by_name(list_entry, key);
- if (list_entry != NULL)
- udev_list_entry_delete(list_entry);
- return NULL;
- }
- return udev_list_entry_add(&udev_device->properties_list, key, value);
+ list_entry = udev_device_get_properties_list_entry(udev_device);
+ list_entry = udev_list_entry_get_by_name(list_entry, key);
+ if (list_entry != NULL)
+ udev_list_entry_delete(list_entry);
+ return NULL;
+ }
+ return udev_list_entry_add(&udev_device->properties_list, key, value);
}
static struct udev_list_entry *udev_device_add_property_from_string(struct udev_device *udev_device, const char *property)
{
- char name[UTIL_LINE_SIZE];
- char *val;
+ char name[UTIL_LINE_SIZE];
+ char *val;
- util_strscpy(name, sizeof(name), property);
- val = strchr(name, '=');
- if (val == NULL)
- return NULL;
- val[0] = '\0';
- val = &val[1];
- if (val[0] == '\0')
- val = NULL;
- return udev_device_add_property(udev_device, name, val);
+ util_strscpy(name, sizeof(name), property);
+ val = strchr(name, '=');
+ if (val == NULL)
+ return NULL;
+ val[0] = '\0';
+ val = &val[1];
+ if (val[0] == '\0')
+ val = NULL;
+ return udev_device_add_property(udev_device, name, val);
}
/*
*/
void udev_device_add_property_from_string_parse(struct udev_device *udev_device, const char *property)
{
- if (strncmp(property, "DEVPATH=", 8) == 0) {
- char path[UTIL_PATH_SIZE];
-
- util_strscpyl(path, sizeof(path), udev_get_sys_path(udev_device->udev), &property[8], NULL);
- udev_device_set_syspath(udev_device, path);
- } else if (strncmp(property, "SUBSYSTEM=", 10) == 0) {
- udev_device_set_subsystem(udev_device, &property[10]);
- } else if (strncmp(property, "DEVTYPE=", 8) == 0) {
- udev_device_set_devtype(udev_device, &property[8]);
- } else if (strncmp(property, "DEVNAME=", 8) == 0) {
- udev_device_set_devnode(udev_device, &property[8]);
- } else if (strncmp(property, "DEVLINKS=", 9) == 0) {
- char devlinks[UTIL_PATH_SIZE];
- char *slink;
- char *next;
-
- util_strscpy(devlinks, sizeof(devlinks), &property[9]);
- slink = devlinks;
- next = strchr(slink, ' ');
- while (next != NULL) {
- next[0] = '\0';
- udev_device_add_devlink(udev_device, slink, 0);
- slink = &next[1];
- next = strchr(slink, ' ');
- }
- if (slink[0] != '\0')
- udev_device_add_devlink(udev_device, slink, 0);
- } else if (strncmp(property, "TAGS=", 5) == 0) {
- char tags[UTIL_PATH_SIZE];
- char *next;
-
- util_strscpy(tags, sizeof(tags), &property[5]);
- next = strchr(tags, ':');
- if (next != NULL) {
- next++;
- while (next[0] != '\0') {
- char *tag;
-
- tag = next;
- next = strchr(tag, ':');
- if (next == NULL)
- break;
- next[0] = '\0';
- next++;
- udev_device_add_tag(udev_device, tag);
- }
- }
- } else if (strncmp(property, "USEC_INITIALIZED=", 19) == 0) {
- udev_device_set_usec_initialized(udev_device, strtoull(&property[19], NULL, 10));
- } else if (strncmp(property, "DRIVER=", 7) == 0) {
- udev_device_set_driver(udev_device, &property[7]);
- } else if (strncmp(property, "ACTION=", 7) == 0) {
- udev_device_set_action(udev_device, &property[7]);
- } else if (strncmp(property, "MAJOR=", 6) == 0) {
- udev_device->maj = strtoull(&property[6], NULL, 10);
- } else if (strncmp(property, "MINOR=", 6) == 0) {
- udev_device->min = strtoull(&property[6], NULL, 10);
- } else if (strncmp(property, "DEVPATH_OLD=", 12) == 0) {
- udev_device_set_devpath_old(udev_device, &property[12]);
- } else if (strncmp(property, "SEQNUM=", 7) == 0) {
- udev_device_set_seqnum(udev_device, strtoull(&property[7], NULL, 10));
- } else if (strncmp(property, "IFINDEX=", 8) == 0) {
- udev_device_set_ifindex(udev_device, strtoull(&property[8], NULL, 10));
- } else if (strncmp(property, "DEVMODE=", 8) == 0) {
- udev_device_set_devnode_mode(udev_device, strtoul(&property[8], NULL, 8));
- } else {
- udev_device_add_property_from_string(udev_device, property);
- }
+ if (strncmp(property, "DEVPATH=", 8) == 0) {
+ char path[UTIL_PATH_SIZE];
+
+ util_strscpyl(path, sizeof(path), udev_get_sys_path(udev_device->udev), &property[8], NULL);
+ udev_device_set_syspath(udev_device, path);
+ } else if (strncmp(property, "SUBSYSTEM=", 10) == 0) {
+ udev_device_set_subsystem(udev_device, &property[10]);
+ } else if (strncmp(property, "DEVTYPE=", 8) == 0) {
+ udev_device_set_devtype(udev_device, &property[8]);
+ } else if (strncmp(property, "DEVNAME=", 8) == 0) {
+ udev_device_set_devnode(udev_device, &property[8]);
+ } else if (strncmp(property, "DEVLINKS=", 9) == 0) {
+ char devlinks[UTIL_PATH_SIZE];
+ char *slink;
+ char *next;
+
+ util_strscpy(devlinks, sizeof(devlinks), &property[9]);
+ slink = devlinks;
+ next = strchr(slink, ' ');
+ while (next != NULL) {
+ next[0] = '\0';
+ udev_device_add_devlink(udev_device, slink, 0);
+ slink = &next[1];
+ next = strchr(slink, ' ');
+ }
+ if (slink[0] != '\0')
+ udev_device_add_devlink(udev_device, slink, 0);
+ } else if (strncmp(property, "TAGS=", 5) == 0) {
+ char tags[UTIL_PATH_SIZE];
+ char *next;
+
+ util_strscpy(tags, sizeof(tags), &property[5]);
+ next = strchr(tags, ':');
+ if (next != NULL) {
+ next++;
+ while (next[0] != '\0') {
+ char *tag;
+
+ tag = next;
+ next = strchr(tag, ':');
+ if (next == NULL)
+ break;
+ next[0] = '\0';
+ next++;
+ udev_device_add_tag(udev_device, tag);
+ }
+ }
+ } else if (strncmp(property, "USEC_INITIALIZED=", 19) == 0) {
+ udev_device_set_usec_initialized(udev_device, strtoull(&property[19], NULL, 10));
+ } else if (strncmp(property, "DRIVER=", 7) == 0) {
+ udev_device_set_driver(udev_device, &property[7]);
+ } else if (strncmp(property, "ACTION=", 7) == 0) {
+ udev_device_set_action(udev_device, &property[7]);
+ } else if (strncmp(property, "MAJOR=", 6) == 0) {
+ udev_device->maj = strtoull(&property[6], NULL, 10);
+ } else if (strncmp(property, "MINOR=", 6) == 0) {
+ udev_device->min = strtoull(&property[6], NULL, 10);
+ } else if (strncmp(property, "DEVPATH_OLD=", 12) == 0) {
+ udev_device_set_devpath_old(udev_device, &property[12]);
+ } else if (strncmp(property, "SEQNUM=", 7) == 0) {
+ udev_device_set_seqnum(udev_device, strtoull(&property[7], NULL, 10));
+ } else if (strncmp(property, "IFINDEX=", 8) == 0) {
+ udev_device_set_ifindex(udev_device, strtoull(&property[8], NULL, 10));
+ } else if (strncmp(property, "DEVMODE=", 8) == 0) {
+ udev_device_set_devnode_mode(udev_device, strtoul(&property[8], NULL, 8));
+ } else {
+ udev_device_add_property_from_string(udev_device, property);
+ }
}
int udev_device_add_property_from_string_parse_finish(struct udev_device *udev_device)
{
- if (udev_device->maj > 0)
- udev_device_set_devnum(udev_device, makedev(udev_device->maj, udev_device->min));
- udev_device->maj = 0;
- udev_device->min = 0;
+ if (udev_device->maj > 0)
+ udev_device_set_devnum(udev_device, makedev(udev_device->maj, udev_device->min));
+ udev_device->maj = 0;
+ udev_device->min = 0;
- if (udev_device->devpath == NULL || udev_device->subsystem == NULL)
- return -EINVAL;
- return 0;
+ if (udev_device->devpath == NULL || udev_device->subsystem == NULL)
+ return -EINVAL;
+ return 0;
}
/**
**/
UDEV_EXPORT const char *udev_device_get_property_value(struct udev_device *udev_device, const char *key)
{
- struct udev_list_entry *list_entry;
+ struct udev_list_entry *list_entry;
- if (udev_device == NULL)
- return NULL;
- if (key == NULL)
- return NULL;
+ if (udev_device == NULL)
+ return NULL;
+ if (key == NULL)
+ return NULL;
- list_entry = udev_device_get_properties_list_entry(udev_device);
- list_entry = udev_list_entry_get_by_name(list_entry, key);
- return udev_list_entry_get_value(list_entry);
+ list_entry = udev_device_get_properties_list_entry(udev_device);
+ list_entry = udev_list_entry_get_by_name(list_entry, key);
+ return udev_list_entry_get_value(list_entry);
}
int udev_device_read_db(struct udev_device *udev_device, const char *dbfile)
{
- char filename[UTIL_PATH_SIZE];
- char line[UTIL_LINE_SIZE];
- FILE *f;
-
- /* providing a database file will always force-load it */
- if (dbfile == NULL) {
- const char *id;
-
- if (udev_device->db_loaded)
- return 0;
- udev_device->db_loaded = true;
-
- id = udev_device_get_id_filename(udev_device);
- if (id == NULL)
- return -1;
- util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev_device->udev), "/data/", id, NULL);
- dbfile = filename;
- }
-
- f = fopen(dbfile, "re");
- if (f == NULL) {
- info(udev_device->udev, "no db file to read %s: %m\n", dbfile);
- return -1;
- }
- udev_device->is_initialized = true;
-
- while (fgets(line, sizeof(line), f)) {
- ssize_t len;
- const char *val;
- struct udev_list_entry *entry;
-
- len = strlen(line);
- if (len < 4)
- break;
- line[len-1] = '\0';
- val = &line[2];
- switch(line[0]) {
- case 'S':
- util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev_device->udev), "/", val, NULL);
- udev_device_add_devlink(udev_device, filename, 0);
- break;
- case 'L':
- udev_device_set_devlink_priority(udev_device, atoi(val));
- break;
- case 'E':
- entry = udev_device_add_property_from_string(udev_device, val);
- udev_list_entry_set_num(entry, true);
- break;
- case 'G':
- udev_device_add_tag(udev_device, val);
- break;
- case 'W':
- udev_device_set_watch_handle(udev_device, atoi(val));
- break;
- case 'I':
- udev_device_set_usec_initialized(udev_device, strtoull(val, NULL, 10));
- break;
- }
- }
- fclose(f);
-
- info(udev_device->udev, "device %p filled with db file data\n", udev_device);
- return 0;
+ char filename[UTIL_PATH_SIZE];
+ char line[UTIL_LINE_SIZE];
+ FILE *f;
+
+ /* providing a database file will always force-load it */
+ if (dbfile == NULL) {
+ const char *id;
+
+ if (udev_device->db_loaded)
+ return 0;
+ udev_device->db_loaded = true;
+
+ id = udev_device_get_id_filename(udev_device);
+ if (id == NULL)
+ return -1;
+ util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev_device->udev), "/data/", id, NULL);
+ dbfile = filename;
+ }
+
+ f = fopen(dbfile, "re");
+ if (f == NULL) {
+ info(udev_device->udev, "no db file to read %s: %m\n", dbfile);
+ return -1;
+ }
+ udev_device->is_initialized = true;
+
+ while (fgets(line, sizeof(line), f)) {
+ ssize_t len;
+ const char *val;
+ struct udev_list_entry *entry;
+
+ len = strlen(line);
+ if (len < 4)
+ break;
+ line[len-1] = '\0';
+ val = &line[2];
+ switch(line[0]) {
+ case 'S':
+ util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev_device->udev), "/", val, NULL);
+ udev_device_add_devlink(udev_device, filename, 0);
+ break;
+ case 'L':
+ udev_device_set_devlink_priority(udev_device, atoi(val));
+ break;
+ case 'E':
+ entry = udev_device_add_property_from_string(udev_device, val);
+ udev_list_entry_set_num(entry, true);
+ break;
+ case 'G':
+ udev_device_add_tag(udev_device, val);
+ break;
+ case 'W':
+ udev_device_set_watch_handle(udev_device, atoi(val));
+ break;
+ case 'I':
+ udev_device_set_usec_initialized(udev_device, strtoull(val, NULL, 10));
+ break;
+ }
+ }
+ fclose(f);
+
+ info(udev_device->udev, "device %p filled with db file data\n", udev_device);
+ return 0;
}
int udev_device_read_uevent_file(struct udev_device *udev_device)
{
- char filename[UTIL_PATH_SIZE];
- FILE *f;
- char line[UTIL_LINE_SIZE];
- int maj = 0;
- int min = 0;
-
- if (udev_device->uevent_loaded)
- return 0;
-
- util_strscpyl(filename, sizeof(filename), udev_device->syspath, "/uevent", NULL);
- f = fopen(filename, "re");
- if (f == NULL)
- return -1;
- udev_device->uevent_loaded = true;
-
- while (fgets(line, sizeof(line), f)) {
- char *pos;
-
- pos = strchr(line, '\n');
- if (pos == NULL)
- continue;
- pos[0] = '\0';
-
- if (strncmp(line, "DEVTYPE=", 8) == 0)
- udev_device_set_devtype(udev_device, &line[8]);
- else if (strncmp(line, "MAJOR=", 6) == 0)
- maj = strtoull(&line[6], NULL, 10);
- else if (strncmp(line, "MINOR=", 6) == 0)
- min = strtoull(&line[6], NULL, 10);
- else if (strncmp(line, "IFINDEX=", 8) == 0)
- udev_device_set_ifindex(udev_device, strtoull(&line[8], NULL, 10));
- else if (strncmp(line, "DEVNAME=", 8) == 0)
- udev_device_set_devnode(udev_device, &line[8]);
- else if (strncmp(line, "DEVMODE=", 8) == 0)
- udev_device->devnode_mode = strtoul(&line[8], NULL, 8);
-
- udev_device_add_property_from_string(udev_device, line);
- }
-
- udev_device->devnum = makedev(maj, min);
- fclose(f);
- return 0;
+ char filename[UTIL_PATH_SIZE];
+ FILE *f;
+ char line[UTIL_LINE_SIZE];
+ int maj = 0;
+ int min = 0;
+
+ if (udev_device->uevent_loaded)
+ return 0;
+
+ util_strscpyl(filename, sizeof(filename), udev_device->syspath, "/uevent", NULL);
+ f = fopen(filename, "re");
+ if (f == NULL)
+ return -1;
+ udev_device->uevent_loaded = true;
+
+ while (fgets(line, sizeof(line), f)) {
+ char *pos;
+
+ pos = strchr(line, '\n');
+ if (pos == NULL)
+ continue;
+ pos[0] = '\0';
+
+ if (strncmp(line, "DEVTYPE=", 8) == 0) {
+ udev_device_set_devtype(udev_device, &line[8]);
+ continue;
+ }
+ if (strncmp(line, "IFINDEX=", 8) == 0) {
+ udev_device_set_ifindex(udev_device, strtoull(&line[8], NULL, 10));
+ continue;
+ }
+ if (strncmp(line, "DEVNAME=", 8) == 0) {
+ udev_device_set_devnode(udev_device, &line[8]);
+ continue;
+ }
+
+ if (strncmp(line, "MAJOR=", 6) == 0)
+ maj = strtoull(&line[6], NULL, 10);
+ else if (strncmp(line, "MINOR=", 6) == 0)
+ min = strtoull(&line[6], NULL, 10);
+ else if (strncmp(line, "DEVMODE=", 8) == 0)
+ udev_device->devnode_mode = strtoul(&line[8], NULL, 8);
+
+ udev_device_add_property_from_string(udev_device, line);
+ }
+
+ udev_device->devnum = makedev(maj, min);
+ fclose(f);
+ return 0;
}
void udev_device_set_info_loaded(struct udev_device *device)
{
- device->info_loaded = true;
+ device->info_loaded = true;
}
struct udev_device *udev_device_new(struct udev *udev)
{
- struct udev_device *udev_device;
- struct udev_list_entry *list_entry;
-
- if (udev == NULL)
- return NULL;
-
- udev_device = calloc(1, sizeof(struct udev_device));
- if (udev_device == NULL)
- return NULL;
- udev_device->refcount = 1;
- udev_device->udev = udev;
- udev_list_init(udev, &udev_device->devlinks_list, true);
- udev_list_init(udev, &udev_device->properties_list, true);
- udev_list_init(udev, &udev_device->sysattr_value_list, true);
- udev_list_init(udev, &udev_device->sysattr_list, false);
- udev_list_init(udev, &udev_device->tags_list, true);
- udev_device->watch_handle = -1;
- /* copy global properties */
- udev_list_entry_foreach(list_entry, udev_get_properties_list_entry(udev))
- udev_device_add_property(udev_device,
- udev_list_entry_get_name(list_entry),
- udev_list_entry_get_value(list_entry));
- dbg(udev_device->udev, "udev_device: %p created\n", udev_device);
- return udev_device;
+ struct udev_device *udev_device;
+ struct udev_list_entry *list_entry;
+
+ if (udev == NULL)
+ return NULL;
+
+ udev_device = calloc(1, sizeof(struct udev_device));
+ if (udev_device == NULL)
+ return NULL;
+ udev_device->refcount = 1;
+ udev_device->udev = udev;
+ udev_list_init(udev, &udev_device->devlinks_list, true);
+ udev_list_init(udev, &udev_device->properties_list, true);
+ udev_list_init(udev, &udev_device->sysattr_value_list, true);
+ udev_list_init(udev, &udev_device->sysattr_list, false);
+ udev_list_init(udev, &udev_device->tags_list, true);
+ udev_device->watch_handle = -1;
+ /* copy global properties */
+ udev_list_entry_foreach(list_entry, udev_get_properties_list_entry(udev))
+ udev_device_add_property(udev_device,
+ udev_list_entry_get_name(list_entry),
+ udev_list_entry_get_value(list_entry));
+ dbg(udev_device->udev, "udev_device: %p created\n", udev_device);
+ return udev_device;
}
/**
**/
UDEV_EXPORT struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath)
{
- size_t len;
- const char *subdir;
- char path[UTIL_PATH_SIZE];
- char *pos;
- struct stat statbuf;
- struct udev_device *udev_device;
-
- if (udev == NULL)
- return NULL;
- if (syspath == NULL)
- return NULL;
-
- /* path starts in sys */
- len = strlen(udev_get_sys_path(udev));
- if (strncmp(syspath, udev_get_sys_path(udev), len) != 0) {
- info(udev, "not in sys :%s\n", syspath);
- return NULL;
- }
-
- /* path is not a root directory */
- subdir = &syspath[len+1];
- pos = strrchr(subdir, '/');
- if (pos == NULL || pos[1] == '\0' || pos < &subdir[2]) {
- dbg(udev, "not a subdir :%s\n", syspath);
- return NULL;
- }
-
- /* resolve possible symlink to real path */
- util_strscpy(path, sizeof(path), syspath);
- util_resolve_sys_link(udev, path, sizeof(path));
-
- if (strncmp(&path[len], "/devices/", 9) == 0) {
- char file[UTIL_PATH_SIZE];
-
- /* all "devices" require a "uevent" file */
- util_strscpyl(file, sizeof(file), path, "/uevent", NULL);
- if (stat(file, &statbuf) != 0) {
- dbg(udev, "not a device: %s\n", syspath);
- return NULL;
- }
- } else {
- /* everything else just needs to be a directory */
- if (stat(path, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode)) {
- dbg(udev, "directory not found: %s\n", syspath);
- return NULL;
- }
- }
-
- udev_device = udev_device_new(udev);
- if (udev_device == NULL)
- return NULL;
-
- udev_device_set_syspath(udev_device, path);
- info(udev, "device %p has devpath '%s'\n", udev_device, udev_device_get_devpath(udev_device));
-
- return udev_device;
+ size_t len;
+ const char *subdir;
+ char path[UTIL_PATH_SIZE];
+ char *pos;
+ struct stat statbuf;
+ struct udev_device *udev_device;
+
+ if (udev == NULL)
+ return NULL;
+ if (syspath == NULL)
+ return NULL;
+
+ /* path starts in sys */
+ len = strlen(udev_get_sys_path(udev));
+ if (strncmp(syspath, udev_get_sys_path(udev), len) != 0) {
+ info(udev, "not in sys :%s\n", syspath);
+ return NULL;
+ }
+
+ /* path is not a root directory */
+ subdir = &syspath[len+1];
+ pos = strrchr(subdir, '/');
+ if (pos == NULL || pos[1] == '\0' || pos < &subdir[2]) {
+ dbg(udev, "not a subdir :%s\n", syspath);
+ return NULL;
+ }
+
+ /* resolve possible symlink to real path */
+ util_strscpy(path, sizeof(path), syspath);
+ util_resolve_sys_link(udev, path, sizeof(path));
+
+ if (strncmp(&path[len], "/devices/", 9) == 0) {
+ char file[UTIL_PATH_SIZE];
+
+ /* all "devices" require a "uevent" file */
+ util_strscpyl(file, sizeof(file), path, "/uevent", NULL);
+ if (stat(file, &statbuf) != 0) {
+ dbg(udev, "not a device: %s\n", syspath);
+ return NULL;
+ }
+ } else {
+ /* everything else just needs to be a directory */
+ if (stat(path, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode)) {
+ dbg(udev, "directory not found: %s\n", syspath);
+ return NULL;
+ }
+ }
+
+ udev_device = udev_device_new(udev);
+ if (udev_device == NULL)
+ return NULL;
+
+ udev_device_set_syspath(udev_device, path);
+ info(udev, "device %p has devpath '%s'\n", udev_device, udev_device_get_devpath(udev_device));
+
+ return udev_device;
}
/**
**/
UDEV_EXPORT struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, dev_t devnum)
{
- char path[UTIL_PATH_SIZE];
- const char *type_str;
+ char path[UTIL_PATH_SIZE];
+ const char *type_str;
- if (type == 'b')
- type_str = "block";
- else if (type == 'c')
- type_str = "char";
- else
- return NULL;
+ if (type == 'b')
+ type_str = "block";
+ else if (type == 'c')
+ type_str = "char";
+ else
+ return NULL;
- /* use /sys/dev/{block,char}/<maj>:<min> link */
- snprintf(path, sizeof(path), "%s/dev/%s/%u:%u",
- udev_get_sys_path(udev), type_str, major(devnum), minor(devnum));
- return udev_device_new_from_syspath(udev, path);
+ /* use /sys/dev/{block,char}/<maj>:<min> link */
+ snprintf(path, sizeof(path), "%s/dev/%s/%u:%u",
+ udev_get_sys_path(udev), type_str, major(devnum), minor(devnum));
+ return udev_device_new_from_syspath(udev, path);
}
struct udev_device *udev_device_new_from_id_filename(struct udev *udev, char *id)
{
- char type;
- int maj, min;
- char subsys[UTIL_PATH_SIZE];
- char *sysname;
-
- switch(id[0]) {
- case 'b':
- case 'c':
- if (sscanf(id, "%c%i:%i", &type, &maj, &min) != 3)
- return NULL;
- return udev_device_new_from_devnum(udev, type, makedev(maj, min));
- case 'n': {
- int sk;
- struct ifreq ifr;
- struct udev_device *dev;
- int ifindex;
-
- ifindex = strtoul(&id[1], NULL, 10);
- if (ifindex <= 0)
- return NULL;
-
- sk = socket(PF_INET, SOCK_DGRAM, 0);
- if (sk < 0)
- return NULL;
- memset(&ifr, 0x00, sizeof(struct ifreq));
- ifr.ifr_ifindex = ifindex;
- if (ioctl(sk, SIOCGIFNAME, &ifr) != 0) {
- close(sk);
- return NULL;
- }
- close(sk);
-
- dev = udev_device_new_from_subsystem_sysname(udev, "net", ifr.ifr_name);
- if (dev == NULL)
- return NULL;
- if (udev_device_get_ifindex(dev) == ifindex)
- return dev;
- udev_device_unref(dev);
- return NULL;
- }
- case '+':
- util_strscpy(subsys, sizeof(subsys), &id[1]);
- sysname = strchr(subsys, ':');
- if (sysname == NULL)
- return NULL;
- sysname[0] = '\0';
- sysname = &sysname[1];
- return udev_device_new_from_subsystem_sysname(udev, subsys, sysname);
- default:
- return NULL;
- }
+ char type;
+ int maj, min;
+ char subsys[UTIL_PATH_SIZE];
+ char *sysname;
+
+ switch(id[0]) {
+ case 'b':
+ case 'c':
+ if (sscanf(id, "%c%i:%i", &type, &maj, &min) != 3)
+ return NULL;
+ return udev_device_new_from_devnum(udev, type, makedev(maj, min));
+ case 'n': {
+ int sk;
+ struct ifreq ifr;
+ struct udev_device *dev;
+ int ifindex;
+
+ ifindex = strtoul(&id[1], NULL, 10);
+ if (ifindex <= 0)
+ return NULL;
+
+ sk = socket(PF_INET, SOCK_DGRAM, 0);
+ if (sk < 0)
+ return NULL;
+ memset(&ifr, 0x00, sizeof(struct ifreq));
+ ifr.ifr_ifindex = ifindex;
+ if (ioctl(sk, SIOCGIFNAME, &ifr) != 0) {
+ close(sk);
+ return NULL;
+ }
+ close(sk);
+
+ dev = udev_device_new_from_subsystem_sysname(udev, "net", ifr.ifr_name);
+ if (dev == NULL)
+ return NULL;
+ if (udev_device_get_ifindex(dev) == ifindex)
+ return dev;
+ udev_device_unref(dev);
+ return NULL;
+ }
+ case '+':
+ util_strscpy(subsys, sizeof(subsys), &id[1]);
+ sysname = strchr(subsys, ':');
+ if (sysname == NULL)
+ return NULL;
+ sysname[0] = '\0';
+ sysname = &sysname[1];
+ return udev_device_new_from_subsystem_sysname(udev, subsys, sysname);
+ default:
+ return NULL;
+ }
}
/**
**/
UDEV_EXPORT struct udev_device *udev_device_new_from_subsystem_sysname(struct udev *udev, const char *subsystem, const char *sysname)
{
- char path_full[UTIL_PATH_SIZE];
- char *path;
- size_t l;
- struct stat statbuf;
-
- path = path_full;
- l = util_strpcpyl(&path, sizeof(path_full), udev_get_sys_path(udev), NULL);
-
- if (strcmp(subsystem, "subsystem") == 0) {
- util_strscpyl(path, l, "/subsystem/", sysname, NULL);
- if (stat(path_full, &statbuf) == 0)
- goto found;
-
- util_strscpyl(path, l, "/bus/", sysname, NULL);
- if (stat(path_full, &statbuf) == 0)
- goto found;
-
- util_strscpyl(path, l, "/class/", sysname, NULL);
- if (stat(path_full, &statbuf) == 0)
- goto found;
- goto out;
- }
-
- if (strcmp(subsystem, "module") == 0) {
- util_strscpyl(path, l, "/module/", sysname, NULL);
- if (stat(path_full, &statbuf) == 0)
- goto found;
- goto out;
- }
-
- if (strcmp(subsystem, "drivers") == 0) {
- char subsys[UTIL_NAME_SIZE];
- char *driver;
-
- util_strscpy(subsys, sizeof(subsys), sysname);
- driver = strchr(subsys, ':');
- if (driver != NULL) {
- driver[0] = '\0';
- driver = &driver[1];
-
- util_strscpyl(path, l, "/subsystem/", subsys, "/drivers/", driver, NULL);
- if (stat(path_full, &statbuf) == 0)
- goto found;
-
- util_strscpyl(path, l, "/bus/", subsys, "/drivers/", driver, NULL);
- if (stat(path_full, &statbuf) == 0)
- goto found;
- }
- goto out;
- }
-
- util_strscpyl(path, l, "/subsystem/", subsystem, "/devices/", sysname, NULL);
- if (stat(path_full, &statbuf) == 0)
- goto found;
-
- util_strscpyl(path, l, "/bus/", subsystem, "/devices/", sysname, NULL);
- if (stat(path_full, &statbuf) == 0)
- goto found;
-
- util_strscpyl(path, l, "/class/", subsystem, "/", sysname, NULL);
- if (stat(path_full, &statbuf) == 0)
- goto found;
+ char path_full[UTIL_PATH_SIZE];
+ char *path;
+ size_t l;
+ struct stat statbuf;
+
+ path = path_full;
+ l = util_strpcpyl(&path, sizeof(path_full), udev_get_sys_path(udev), NULL);
+
+ if (strcmp(subsystem, "subsystem") == 0) {
+ util_strscpyl(path, l, "/subsystem/", sysname, NULL);
+ if (stat(path_full, &statbuf) == 0)
+ goto found;
+
+ util_strscpyl(path, l, "/bus/", sysname, NULL);
+ if (stat(path_full, &statbuf) == 0)
+ goto found;
+
+ util_strscpyl(path, l, "/class/", sysname, NULL);
+ if (stat(path_full, &statbuf) == 0)
+ goto found;
+ goto out;
+ }
+
+ if (strcmp(subsystem, "module") == 0) {
+ util_strscpyl(path, l, "/module/", sysname, NULL);
+ if (stat(path_full, &statbuf) == 0)
+ goto found;
+ goto out;
+ }
+
+ if (strcmp(subsystem, "drivers") == 0) {
+ char subsys[UTIL_NAME_SIZE];
+ char *driver;
+
+ util_strscpy(subsys, sizeof(subsys), sysname);
+ driver = strchr(subsys, ':');
+ if (driver != NULL) {
+ driver[0] = '\0';
+ driver = &driver[1];
+
+ util_strscpyl(path, l, "/subsystem/", subsys, "/drivers/", driver, NULL);
+ if (stat(path_full, &statbuf) == 0)
+ goto found;
+
+ util_strscpyl(path, l, "/bus/", subsys, "/drivers/", driver, NULL);
+ if (stat(path_full, &statbuf) == 0)
+ goto found;
+ }
+ goto out;
+ }
+
+ util_strscpyl(path, l, "/subsystem/", subsystem, "/devices/", sysname, NULL);
+ if (stat(path_full, &statbuf) == 0)
+ goto found;
+
+ util_strscpyl(path, l, "/bus/", subsystem, "/devices/", sysname, NULL);
+ if (stat(path_full, &statbuf) == 0)
+ goto found;
+
+ util_strscpyl(path, l, "/class/", subsystem, "/", sysname, NULL);
+ if (stat(path_full, &statbuf) == 0)
+ goto found;
out:
- return NULL;
+ return NULL;
found:
- return udev_device_new_from_syspath(udev, path_full);
+ return udev_device_new_from_syspath(udev, path_full);
}
/**
**/
UDEV_EXPORT struct udev_device *udev_device_new_from_environment(struct udev *udev)
{
- int i;
- struct udev_device *udev_device;
+ int i;
+ struct udev_device *udev_device;
- udev_device = udev_device_new(udev);
- if (udev_device == NULL)
- return NULL;
- udev_device_set_info_loaded(udev_device);
+ udev_device = udev_device_new(udev);
+ if (udev_device == NULL)
+ return NULL;
+ udev_device_set_info_loaded(udev_device);
- for (i = 0; environ[i] != NULL; i++)
- udev_device_add_property_from_string_parse(udev_device, environ[i]);
+ for (i = 0; environ[i] != NULL; i++)
+ udev_device_add_property_from_string_parse(udev_device, environ[i]);
- if (udev_device_add_property_from_string_parse_finish(udev_device) < 0) {
- info(udev, "missing values, invalid device\n");
- udev_device_unref(udev_device);
- udev_device = NULL;
- }
+ if (udev_device_add_property_from_string_parse_finish(udev_device) < 0) {
+ info(udev, "missing values, invalid device\n");
+ udev_device_unref(udev_device);
+ udev_device = NULL;
+ }
- return udev_device;
+ return udev_device;
}
static struct udev_device *device_new_from_parent(struct udev_device *udev_device)
{
- struct udev_device *udev_device_parent = NULL;
- char path[UTIL_PATH_SIZE];
- const char *subdir;
+ struct udev_device *udev_device_parent = NULL;
+ char path[UTIL_PATH_SIZE];
+ const char *subdir;
- util_strscpy(path, sizeof(path), udev_device->syspath);
- subdir = &path[strlen(udev_get_sys_path(udev_device->udev))+1];
- for (;;) {
- char *pos;
+ util_strscpy(path, sizeof(path), udev_device->syspath);
+ subdir = &path[strlen(udev_get_sys_path(udev_device->udev))+1];
+ for (;;) {
+ char *pos;
- pos = strrchr(subdir, '/');
- if (pos == NULL || pos < &subdir[2])
- break;
- pos[0] = '\0';
- udev_device_parent = udev_device_new_from_syspath(udev_device->udev, path);
- if (udev_device_parent != NULL)
- return udev_device_parent;
- }
- return NULL;
+ pos = strrchr(subdir, '/');
+ if (pos == NULL || pos < &subdir[2])
+ break;
+ pos[0] = '\0';
+ udev_device_parent = udev_device_new_from_syspath(udev_device->udev, path);
+ if (udev_device_parent != NULL)
+ return udev_device_parent;
+ }
+ return NULL;
}
/**
**/
UDEV_EXPORT struct udev_device *udev_device_get_parent(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->parent_set) {
- udev_device->parent_set = true;
- udev_device->parent_device = device_new_from_parent(udev_device);
- }
- if (udev_device->parent_device != NULL)
- dbg(udev_device->udev, "returning existing parent %p\n", udev_device->parent_device);
- return udev_device->parent_device;
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->parent_set) {
+ udev_device->parent_set = true;
+ udev_device->parent_device = device_new_from_parent(udev_device);
+ }
+ if (udev_device->parent_device != NULL)
+ dbg(udev_device->udev, "returning existing parent %p\n", udev_device->parent_device);
+ return udev_device->parent_device;
}
/**
**/
UDEV_EXPORT struct udev_device *udev_device_get_parent_with_subsystem_devtype(struct udev_device *udev_device, const char *subsystem, const char *devtype)
{
- struct udev_device *parent;
+ struct udev_device *parent;
- if (subsystem == NULL)
- return NULL;
+ if (subsystem == NULL)
+ return NULL;
- parent = udev_device_get_parent(udev_device);
- while (parent != NULL) {
- const char *parent_subsystem;
- const char *parent_devtype;
+ parent = udev_device_get_parent(udev_device);
+ while (parent != NULL) {
+ const char *parent_subsystem;
+ const char *parent_devtype;
- parent_subsystem = udev_device_get_subsystem(parent);
- if (parent_subsystem != NULL && strcmp(parent_subsystem, subsystem) == 0) {
- if (devtype == NULL)
- break;
- parent_devtype = udev_device_get_devtype(parent);
- if (parent_devtype != NULL && strcmp(parent_devtype, devtype) == 0)
- break;
- }
- parent = udev_device_get_parent(parent);
- }
- return parent;
+ parent_subsystem = udev_device_get_subsystem(parent);
+ if (parent_subsystem != NULL && strcmp(parent_subsystem, subsystem) == 0) {
+ if (devtype == NULL)
+ break;
+ parent_devtype = udev_device_get_devtype(parent);
+ if (parent_devtype != NULL && strcmp(parent_devtype, devtype) == 0)
+ break;
+ }
+ parent = udev_device_get_parent(parent);
+ }
+ return parent;
}
/**
**/
UDEV_EXPORT struct udev *udev_device_get_udev(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- return udev_device->udev;
+ if (udev_device == NULL)
+ return NULL;
+ return udev_device->udev;
}
/**
**/
UDEV_EXPORT struct udev_device *udev_device_ref(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- udev_device->refcount++;
- return udev_device;
+ if (udev_device == NULL)
+ return NULL;
+ udev_device->refcount++;
+ return udev_device;
}
/**
**/
UDEV_EXPORT void udev_device_unref(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return;
- udev_device->refcount--;
- if (udev_device->refcount > 0)
- return;
- if (udev_device->parent_device != NULL)
- udev_device_unref(udev_device->parent_device);
- free(udev_device->syspath);
- free(udev_device->sysname);
- free(udev_device->devnode);
- free(udev_device->subsystem);
- free(udev_device->devtype);
- udev_list_cleanup(&udev_device->devlinks_list);
- udev_list_cleanup(&udev_device->properties_list);
- udev_list_cleanup(&udev_device->sysattr_value_list);
- udev_list_cleanup(&udev_device->sysattr_list);
- udev_list_cleanup(&udev_device->tags_list);
- free(udev_device->action);
- free(udev_device->driver);
- free(udev_device->devpath_old);
- free(udev_device->id_filename);
- free(udev_device->envp);
- free(udev_device->monitor_buf);
- dbg(udev_device->udev, "udev_device: %p released\n", udev_device);
- free(udev_device);
+ if (udev_device == NULL)
+ return;
+ udev_device->refcount--;
+ if (udev_device->refcount > 0)
+ return;
+ if (udev_device->parent_device != NULL)
+ udev_device_unref(udev_device->parent_device);
+ free(udev_device->syspath);
+ free(udev_device->sysname);
+ free(udev_device->devnode);
+ free(udev_device->subsystem);
+ free(udev_device->devtype);
+ udev_list_cleanup(&udev_device->devlinks_list);
+ udev_list_cleanup(&udev_device->properties_list);
+ udev_list_cleanup(&udev_device->sysattr_value_list);
+ udev_list_cleanup(&udev_device->sysattr_list);
+ udev_list_cleanup(&udev_device->tags_list);
+ free(udev_device->action);
+ free(udev_device->driver);
+ free(udev_device->devpath_old);
+ free(udev_device->id_filename);
+ free(udev_device->envp);
+ free(udev_device->monitor_buf);
+ dbg(udev_device->udev, "udev_device: %p released\n", udev_device);
+ free(udev_device);
}
/**
**/
UDEV_EXPORT const char *udev_device_get_devpath(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- return udev_device->devpath;
+ if (udev_device == NULL)
+ return NULL;
+ return udev_device->devpath;
}
/**
**/
UDEV_EXPORT const char *udev_device_get_syspath(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- return udev_device->syspath;
+ if (udev_device == NULL)
+ return NULL;
+ return udev_device->syspath;
}
/**
**/
UDEV_EXPORT const char *udev_device_get_sysname(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- return udev_device->sysname;
+ if (udev_device == NULL)
+ return NULL;
+ return udev_device->sysname;
}
/**
**/
UDEV_EXPORT const char *udev_device_get_sysnum(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- return udev_device->sysnum;
+ if (udev_device == NULL)
+ return NULL;
+ return udev_device->sysnum;
}
/**
**/
UDEV_EXPORT const char *udev_device_get_devnode(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- if (udev_device->devnode != NULL)
- return udev_device->devnode;
- if (!udev_device->info_loaded)
- udev_device_read_uevent_file(udev_device);
- return udev_device->devnode;
+ if (udev_device == NULL)
+ return NULL;
+ if (udev_device->devnode != NULL)
+ return udev_device->devnode;
+ if (!udev_device->info_loaded)
+ udev_device_read_uevent_file(udev_device);
+ return udev_device->devnode;
}
/**
**/
UDEV_EXPORT struct udev_list_entry *udev_device_get_devlinks_list_entry(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->info_loaded)
- udev_device_read_db(udev_device, NULL);
- return udev_list_get_entry(&udev_device->devlinks_list);
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->info_loaded)
+ udev_device_read_db(udev_device, NULL);
+ return udev_list_get_entry(&udev_device->devlinks_list);
}
void udev_device_cleanup_devlinks_list(struct udev_device *udev_device)
{
- udev_device->devlinks_uptodate = false;
- udev_list_cleanup(&udev_device->devlinks_list);
+ udev_device->devlinks_uptodate = false;
+ udev_list_cleanup(&udev_device->devlinks_list);
}
/**
**/
UDEV_EXPORT struct udev_list_entry *udev_device_get_properties_list_entry(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->info_loaded) {
- udev_device_read_uevent_file(udev_device);
- udev_device_read_db(udev_device, NULL);
- }
- if (!udev_device->devlinks_uptodate) {
- char symlinks[UTIL_PATH_SIZE];
- struct udev_list_entry *list_entry;
-
- udev_device->devlinks_uptodate = true;
- list_entry = udev_device_get_devlinks_list_entry(udev_device);
- if (list_entry != NULL) {
- char *s;
- size_t l;
-
- s = symlinks;
- l = util_strpcpyl(&s, sizeof(symlinks), udev_list_entry_get_name(list_entry), NULL);
- udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry))
- l = util_strpcpyl(&s, l, " ", udev_list_entry_get_name(list_entry), NULL);
- udev_device_add_property(udev_device, "DEVLINKS", symlinks);
- }
- }
- if (!udev_device->tags_uptodate) {
- udev_device->tags_uptodate = true;
- if (udev_device_get_tags_list_entry(udev_device) != NULL) {
- char tags[UTIL_PATH_SIZE];
- struct udev_list_entry *list_entry;
- char *s;
- size_t l;
-
- s = tags;
- l = util_strpcpyl(&s, sizeof(tags), ":", NULL);
- udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(udev_device))
- l = util_strpcpyl(&s, l, udev_list_entry_get_name(list_entry), ":", NULL);
- udev_device_add_property(udev_device, "TAGS", tags);
- }
- }
- return udev_list_get_entry(&udev_device->properties_list);
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->info_loaded) {
+ udev_device_read_uevent_file(udev_device);
+ udev_device_read_db(udev_device, NULL);
+ }
+ if (!udev_device->devlinks_uptodate) {
+ char symlinks[UTIL_PATH_SIZE];
+ struct udev_list_entry *list_entry;
+
+ udev_device->devlinks_uptodate = true;
+ list_entry = udev_device_get_devlinks_list_entry(udev_device);
+ if (list_entry != NULL) {
+ char *s;
+ size_t l;
+
+ s = symlinks;
+ l = util_strpcpyl(&s, sizeof(symlinks), udev_list_entry_get_name(list_entry), NULL);
+ udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry))
+ l = util_strpcpyl(&s, l, " ", udev_list_entry_get_name(list_entry), NULL);
+ udev_device_add_property(udev_device, "DEVLINKS", symlinks);
+ }
+ }
+ if (!udev_device->tags_uptodate) {
+ udev_device->tags_uptodate = true;
+ if (udev_device_get_tags_list_entry(udev_device) != NULL) {
+ char tags[UTIL_PATH_SIZE];
+ struct udev_list_entry *list_entry;
+ char *s;
+ size_t l;
+
+ s = tags;
+ l = util_strpcpyl(&s, sizeof(tags), ":", NULL);
+ udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(udev_device))
+ l = util_strpcpyl(&s, l, udev_list_entry_get_name(list_entry), ":", NULL);
+ udev_device_add_property(udev_device, "TAGS", tags);
+ }
+ }
+ return udev_list_get_entry(&udev_device->properties_list);
}
/**
**/
UDEV_EXPORT const char *udev_device_get_action(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- return udev_device->action;
+ if (udev_device == NULL)
+ return NULL;
+ return udev_device->action;
}
/**
**/
UDEV_EXPORT unsigned long long int udev_device_get_usec_since_initialized(struct udev_device *udev_device)
{
- unsigned long long now;
+ unsigned long long now;
- if (udev_device == NULL)
- return 0;
- if (!udev_device->info_loaded)
- udev_device_read_db(udev_device, NULL);
- if (udev_device->usec_initialized == 0)
- return 0;
- now = now_usec();
- if (now == 0)
- return 0;
- return now - udev_device->usec_initialized;
+ if (udev_device == NULL)
+ return 0;
+ if (!udev_device->info_loaded)
+ udev_device_read_db(udev_device, NULL);
+ if (udev_device->usec_initialized == 0)
+ return 0;
+ now = now_usec();
+ if (now == 0)
+ return 0;
+ return now - udev_device->usec_initialized;
}
unsigned long long udev_device_get_usec_initialized(struct udev_device *udev_device)
{
- return udev_device->usec_initialized;
+ return udev_device->usec_initialized;
}
void udev_device_set_usec_initialized(struct udev_device *udev_device, unsigned long long usec_initialized)
{
- char num[32];
+ char num[32];
- udev_device->usec_initialized = usec_initialized;
- snprintf(num, sizeof(num), "%llu", usec_initialized);
- udev_device_add_property(udev_device, "USEC_INITIALIZED", num);
+ udev_device->usec_initialized = usec_initialized;
+ snprintf(num, sizeof(num), "%llu", usec_initialized);
+ udev_device_add_property(udev_device, "USEC_INITIALIZED", num);
}
/**
**/
UDEV_EXPORT const char *udev_device_get_sysattr_value(struct udev_device *udev_device, const char *sysattr)
{
- struct udev_list_entry *list_entry;
- char path[UTIL_PATH_SIZE];
- char value[4096];
- struct stat statbuf;
- int fd;
- ssize_t size;
- const char *val = NULL;
-
- if (udev_device == NULL)
- return NULL;
- if (sysattr == NULL)
- return NULL;
-
- /* look for possibly already cached result */
- list_entry = udev_list_get_entry(&udev_device->sysattr_value_list);
- list_entry = udev_list_entry_get_by_name(list_entry, sysattr);
- if (list_entry != NULL) {
- dbg(udev_device->udev, "got '%s' (%s) from cache\n",
- sysattr, udev_list_entry_get_value(list_entry));
- return udev_list_entry_get_value(list_entry);
- }
-
- util_strscpyl(path, sizeof(path), udev_device_get_syspath(udev_device), "/", sysattr, NULL);
- if (lstat(path, &statbuf) != 0) {
- dbg(udev_device->udev, "no attribute '%s', keep negative entry\n", path);
- udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, NULL);
- goto out;
- }
-
- if (S_ISLNK(statbuf.st_mode)) {
- struct udev_device *dev;
-
- /*
- * Some core links return only the last element of the target path,
- * these are just values, the paths should not be exposed.
- */
- if (strcmp(sysattr, "driver") == 0 ||
- strcmp(sysattr, "subsystem") == 0 ||
- strcmp(sysattr, "module") == 0) {
- if (util_get_sys_core_link_value(udev_device->udev, sysattr,
- udev_device->syspath, value, sizeof(value)) < 0)
- return NULL;
- dbg(udev_device->udev, "cache '%s' with link value '%s'\n", sysattr, value);
- list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
- val = udev_list_entry_get_value(list_entry);
- goto out;
- }
-
- /* resolve link to a device and return its syspath */
- util_strscpyl(path, sizeof(path), udev_device->syspath, "/", sysattr, NULL);
- dev = udev_device_new_from_syspath(udev_device->udev, path);
- if (dev != NULL) {
- list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr,
- udev_device_get_syspath(dev));
- val = udev_list_entry_get_value(list_entry);
- udev_device_unref(dev);
- }
-
- goto out;
- }
-
- /* skip directories */
- if (S_ISDIR(statbuf.st_mode))
- goto out;
-
- /* skip non-readable files */
- if ((statbuf.st_mode & S_IRUSR) == 0)
- goto out;
-
- /* read attribute value */
- fd = open(path, O_RDONLY|O_CLOEXEC);
- if (fd < 0) {
- dbg(udev_device->udev, "attribute '%s' can not be opened\n", path);
- goto out;
- }
- size = read(fd, value, sizeof(value));
- close(fd);
- if (size < 0)
- goto out;
- if (size == sizeof(value))
- goto out;
-
- /* got a valid value, store it in cache and return it */
- value[size] = '\0';
- util_remove_trailing_chars(value, '\n');
- dbg(udev_device->udev, "'%s' has attribute value '%s'\n", path, value);
- list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
- val = udev_list_entry_get_value(list_entry);
+ struct udev_list_entry *list_entry;
+ char path[UTIL_PATH_SIZE];
+ char value[4096];
+ struct stat statbuf;
+ int fd;
+ ssize_t size;
+ const char *val = NULL;
+
+ if (udev_device == NULL)
+ return NULL;
+ if (sysattr == NULL)
+ return NULL;
+
+ /* look for possibly already cached result */
+ list_entry = udev_list_get_entry(&udev_device->sysattr_value_list);
+ list_entry = udev_list_entry_get_by_name(list_entry, sysattr);
+ if (list_entry != NULL) {
+ dbg(udev_device->udev, "got '%s' (%s) from cache\n",
+ sysattr, udev_list_entry_get_value(list_entry));
+ return udev_list_entry_get_value(list_entry);
+ }
+
+ util_strscpyl(path, sizeof(path), udev_device_get_syspath(udev_device), "/", sysattr, NULL);
+ if (lstat(path, &statbuf) != 0) {
+ dbg(udev_device->udev, "no attribute '%s', keep negative entry\n", path);
+ udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, NULL);
+ goto out;
+ }
+
+ if (S_ISLNK(statbuf.st_mode)) {
+ struct udev_device *dev;
+
+ /*
+ * Some core links return only the last element of the target path,
+ * these are just values, the paths should not be exposed.
+ */
+ if (strcmp(sysattr, "driver") == 0 ||
+ strcmp(sysattr, "subsystem") == 0 ||
+ strcmp(sysattr, "module") == 0) {
+ if (util_get_sys_core_link_value(udev_device->udev, sysattr,
+ udev_device->syspath, value, sizeof(value)) < 0)
+ return NULL;
+ dbg(udev_device->udev, "cache '%s' with link value '%s'\n", sysattr, value);
+ list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
+ val = udev_list_entry_get_value(list_entry);
+ goto out;
+ }
+
+ /* resolve link to a device and return its syspath */
+ util_strscpyl(path, sizeof(path), udev_device->syspath, "/", sysattr, NULL);
+ dev = udev_device_new_from_syspath(udev_device->udev, path);
+ if (dev != NULL) {
+ list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr,
+ udev_device_get_syspath(dev));
+ val = udev_list_entry_get_value(list_entry);
+ udev_device_unref(dev);
+ }
+
+ goto out;
+ }
+
+ /* skip directories */
+ if (S_ISDIR(statbuf.st_mode))
+ goto out;
+
+ /* skip non-readable files */
+ if ((statbuf.st_mode & S_IRUSR) == 0)
+ goto out;
+
+ /* read attribute value */
+ fd = open(path, O_RDONLY|O_CLOEXEC);
+ if (fd < 0) {
+ dbg(udev_device->udev, "attribute '%s' can not be opened\n", path);
+ goto out;
+ }
+ size = read(fd, value, sizeof(value));
+ close(fd);
+ if (size < 0)
+ goto out;
+ if (size == sizeof(value))
+ goto out;
+
+ /* got a valid value, store it in cache and return it */
+ value[size] = '\0';
+ util_remove_trailing_chars(value, '\n');
+ dbg(udev_device->udev, "'%s' has attribute value '%s'\n", path, value);
+ list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
+ val = udev_list_entry_get_value(list_entry);
out:
- return val;
+ return val;
}
static int udev_device_sysattr_list_read(struct udev_device *udev_device)
{
- struct dirent *dent;
- DIR *dir;
- int num = 0;
+ struct dirent *dent;
+ DIR *dir;
+ int num = 0;
- if (udev_device == NULL)
- return -1;
- if (udev_device->sysattr_list_read)
- return 0;
+ if (udev_device == NULL)
+ return -1;
+ if (udev_device->sysattr_list_read)
+ return 0;
- dir = opendir(udev_device_get_syspath(udev_device));
- if (!dir) {
- dbg(udev_device->udev, "sysfs dir '%s' can not be opened\n",
- udev_device_get_syspath(udev_device));
- return -1;
- }
+ dir = opendir(udev_device_get_syspath(udev_device));
+ if (!dir) {
+ dbg(udev_device->udev, "sysfs dir '%s' can not be opened\n",
+ udev_device_get_syspath(udev_device));
+ return -1;
+ }
- for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
- char path[UTIL_PATH_SIZE];
- struct stat statbuf;
+ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+ char path[UTIL_PATH_SIZE];
+ struct stat statbuf;
- /* only handle symlinks and regular files */
- if (dent->d_type != DT_LNK && dent->d_type != DT_REG)
- continue;
+ /* only handle symlinks and regular files */
+ if (dent->d_type != DT_LNK && dent->d_type != DT_REG)
+ continue;
- util_strscpyl(path, sizeof(path), udev_device_get_syspath(udev_device), "/", dent->d_name, NULL);
- if (lstat(path, &statbuf) != 0)
- continue;
- if ((statbuf.st_mode & S_IRUSR) == 0)
- continue;
+ util_strscpyl(path, sizeof(path), udev_device_get_syspath(udev_device), "/", dent->d_name, NULL);
+ if (lstat(path, &statbuf) != 0)
+ continue;
+ if ((statbuf.st_mode & S_IRUSR) == 0)
+ continue;
- udev_list_entry_add(&udev_device->sysattr_list, dent->d_name, NULL);
- num++;
- }
+ udev_list_entry_add(&udev_device->sysattr_list, dent->d_name, NULL);
+ num++;
+ }
- closedir(dir);
- dbg(udev_device->udev, "found %d sysattrs for '%s'\n", num, udev_device_get_syspath(udev_device));
- udev_device->sysattr_list_read = true;
+ closedir(dir);
+ dbg(udev_device->udev, "found %d sysattrs for '%s'\n", num, udev_device_get_syspath(udev_device));
+ udev_device->sysattr_list_read = true;
- return num;
+ return num;
}
/**
**/
UDEV_EXPORT struct udev_list_entry *udev_device_get_sysattr_list_entry(struct udev_device *udev_device)
{
- if (!udev_device->sysattr_list_read) {
- int ret;
- ret = udev_device_sysattr_list_read(udev_device);
- if (0 > ret)
- return NULL;
- }
+ if (!udev_device->sysattr_list_read) {
+ int ret;
+ ret = udev_device_sysattr_list_read(udev_device);
+ if (0 > ret)
+ return NULL;
+ }
- return udev_list_get_entry(&udev_device->sysattr_list);
+ return udev_list_get_entry(&udev_device->sysattr_list);
}
int udev_device_set_syspath(struct udev_device *udev_device, const char *syspath)
{
- const char *pos;
- size_t len;
+ const char *pos;
+ size_t len;
- free(udev_device->syspath);
- udev_device->syspath = strdup(syspath);
- if (udev_device->syspath == NULL)
- return -ENOMEM;
- udev_device->devpath = &udev_device->syspath[strlen(udev_get_sys_path(udev_device->udev))];
- udev_device_add_property(udev_device, "DEVPATH", udev_device->devpath);
+ free(udev_device->syspath);
+ udev_device->syspath = strdup(syspath);
+ if (udev_device->syspath == NULL)
+ return -ENOMEM;
+ udev_device->devpath = &udev_device->syspath[strlen(udev_get_sys_path(udev_device->udev))];
+ udev_device_add_property(udev_device, "DEVPATH", udev_device->devpath);
- pos = strrchr(udev_device->syspath, '/');
- if (pos == NULL)
- return -EINVAL;
- udev_device->sysname = strdup(&pos[1]);
- if (udev_device->sysname == NULL)
- return -ENOMEM;
+ pos = strrchr(udev_device->syspath, '/');
+ if (pos == NULL)
+ return -EINVAL;
+ udev_device->sysname = strdup(&pos[1]);
+ if (udev_device->sysname == NULL)
+ return -ENOMEM;
- /* some devices have '!' in their name, change that to '/' */
- len = 0;
- while (udev_device->sysname[len] != '\0') {
- if (udev_device->sysname[len] == '!')
- udev_device->sysname[len] = '/';
- len++;
- }
+ /* some devices have '!' in their name, change that to '/' */
+ len = 0;
+ while (udev_device->sysname[len] != '\0') {
+ if (udev_device->sysname[len] == '!')
+ udev_device->sysname[len] = '/';
+ len++;
+ }
- /* trailing number */
- while (len > 0 && isdigit(udev_device->sysname[--len]))
- udev_device->sysnum = &udev_device->sysname[len];
+ /* trailing number */
+ while (len > 0 && isdigit(udev_device->sysname[--len]))
+ udev_device->sysnum = &udev_device->sysname[len];
- /* sysname is completely numeric */
- if (len == 0)
- udev_device->sysnum = NULL;
+ /* sysname is completely numeric */
+ if (len == 0)
+ udev_device->sysnum = NULL;
- return 0;
+ return 0;
}
int udev_device_set_devnode(struct udev_device *udev_device, const char *devnode)
{
- free(udev_device->devnode);
- if (devnode[0] != '/') {
- if (asprintf(&udev_device->devnode, "%s/%s", udev_get_dev_path(udev_device->udev), devnode) < 0)
- udev_device->devnode = NULL;
- } else {
- udev_device->devnode = strdup(devnode);
- }
- if (udev_device->devnode == NULL)
- return -ENOMEM;
- udev_device_add_property(udev_device, "DEVNAME", udev_device->devnode);
- return 0;
+ free(udev_device->devnode);
+ if (devnode[0] != '/') {
+ if (asprintf(&udev_device->devnode, "%s/%s", udev_get_dev_path(udev_device->udev), devnode) < 0)
+ udev_device->devnode = NULL;
+ } else {
+ udev_device->devnode = strdup(devnode);
+ }
+ if (udev_device->devnode == NULL)
+ return -ENOMEM;
+ udev_device_add_property(udev_device, "DEVNAME", udev_device->devnode);
+ return 0;
}
int udev_device_add_devlink(struct udev_device *udev_device, const char *devlink, int unique)
{
- struct udev_list_entry *list_entry;
+ struct udev_list_entry *list_entry;
- udev_device->devlinks_uptodate = false;
- list_entry = udev_list_entry_add(&udev_device->devlinks_list, devlink, NULL);
- if (list_entry == NULL)
- return -ENOMEM;
- if (unique)
- udev_list_entry_set_num(list_entry, true);
- return 0;
+ udev_device->devlinks_uptodate = false;
+ list_entry = udev_list_entry_add(&udev_device->devlinks_list, devlink, NULL);
+ if (list_entry == NULL)
+ return -ENOMEM;
+ if (unique)
+ udev_list_entry_set_num(list_entry, true);
+ return 0;
}
const char *udev_device_get_id_filename(struct udev_device *udev_device)
{
- if (udev_device->id_filename == NULL) {
- if (udev_device_get_subsystem(udev_device) == NULL)
- return NULL;
-
- if (major(udev_device_get_devnum(udev_device)) > 0) {
- /* use dev_t -- b259:131072, c254:0 */
- if (asprintf(&udev_device->id_filename, "%c%u:%u",
- strcmp(udev_device_get_subsystem(udev_device), "block") == 0 ? 'b' : 'c',
- major(udev_device_get_devnum(udev_device)),
- minor(udev_device_get_devnum(udev_device))) < 0)
- udev_device->id_filename = NULL;
- } else if (udev_device_get_ifindex(udev_device) > 0) {
- /* use netdev ifindex -- n3 */
- if (asprintf(&udev_device->id_filename, "n%u", udev_device_get_ifindex(udev_device)) < 0)
- udev_device->id_filename = NULL;
- } else {
- /*
- * use $subsys:$syname -- pci:0000:00:1f.2
- * sysname() has '!' translated, get it from devpath
- */
- const char *sysname;
- sysname = strrchr(udev_device->devpath, '/');
- if (sysname == NULL)
- return NULL;
- sysname = &sysname[1];
- if (asprintf(&udev_device->id_filename, "+%s:%s", udev_device_get_subsystem(udev_device), sysname) < 0)
- udev_device->id_filename = NULL;
- }
- }
- return udev_device->id_filename;
+ if (udev_device->id_filename == NULL) {
+ if (udev_device_get_subsystem(udev_device) == NULL)
+ return NULL;
+
+ if (major(udev_device_get_devnum(udev_device)) > 0) {
+ /* use dev_t -- b259:131072, c254:0 */
+ if (asprintf(&udev_device->id_filename, "%c%u:%u",
+ strcmp(udev_device_get_subsystem(udev_device), "block") == 0 ? 'b' : 'c',
+ major(udev_device_get_devnum(udev_device)),
+ minor(udev_device_get_devnum(udev_device))) < 0)
+ udev_device->id_filename = NULL;
+ } else if (udev_device_get_ifindex(udev_device) > 0) {
+ /* use netdev ifindex -- n3 */
+ if (asprintf(&udev_device->id_filename, "n%u", udev_device_get_ifindex(udev_device)) < 0)
+ udev_device->id_filename = NULL;
+ } else {
+ /*
+ * use $subsys:$syname -- pci:0000:00:1f.2
+ * sysname() has '!' translated, get it from devpath
+ */
+ const char *sysname;
+ sysname = strrchr(udev_device->devpath, '/');
+ if (sysname == NULL)
+ return NULL;
+ sysname = &sysname[1];
+ if (asprintf(&udev_device->id_filename, "+%s:%s", udev_device_get_subsystem(udev_device), sysname) < 0)
+ udev_device->id_filename = NULL;
+ }
+ }
+ return udev_device->id_filename;
}
/**
**/
UDEV_EXPORT int udev_device_get_is_initialized(struct udev_device *udev_device)
{
- if (!udev_device->info_loaded)
- udev_device_read_db(udev_device, NULL);
- return udev_device->is_initialized;
+ if (!udev_device->info_loaded)
+ udev_device_read_db(udev_device, NULL);
+ return udev_device->is_initialized;
}
void udev_device_set_is_initialized(struct udev_device *udev_device)
{
- udev_device->is_initialized = true;
+ udev_device->is_initialized = true;
}
int udev_device_add_tag(struct udev_device *udev_device, const char *tag)
{
- if (strchr(tag, ':') != NULL || strchr(tag, ' ') != NULL)
- return -EINVAL;
- udev_device->tags_uptodate = false;
- if (udev_list_entry_add(&udev_device->tags_list, tag, NULL) != NULL)
- return 0;
- return -ENOMEM;
+ if (strchr(tag, ':') != NULL || strchr(tag, ' ') != NULL)
+ return -EINVAL;
+ udev_device->tags_uptodate = false;
+ if (udev_list_entry_add(&udev_device->tags_list, tag, NULL) != NULL)
+ return 0;
+ return -ENOMEM;
}
void udev_device_cleanup_tags_list(struct udev_device *udev_device)
{
- udev_device->tags_uptodate = false;
- udev_list_cleanup(&udev_device->tags_list);
+ udev_device->tags_uptodate = false;
+ udev_list_cleanup(&udev_device->tags_list);
}
/**
**/
UDEV_EXPORT struct udev_list_entry *udev_device_get_tags_list_entry(struct udev_device *udev_device)
{
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->info_loaded)
- udev_device_read_db(udev_device, NULL);
- return udev_list_get_entry(&udev_device->tags_list);
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->info_loaded)
+ udev_device_read_db(udev_device, NULL);
+ return udev_list_get_entry(&udev_device->tags_list);
}
UDEV_EXPORT int udev_device_has_tag(struct udev_device *udev_device, const char *tag)
{
- struct udev_list_entry *list_entry;
+ struct udev_list_entry *list_entry;
- if (udev_device == NULL)
- return false;
- if (!udev_device->info_loaded)
- udev_device_read_db(udev_device, NULL);
- list_entry = udev_device_get_tags_list_entry(udev_device);
- if (udev_list_entry_get_by_name(list_entry, tag) != NULL)
- return true;
- return false;
+ if (udev_device == NULL)
+ return false;
+ if (!udev_device->info_loaded)
+ udev_device_read_db(udev_device, NULL);
+ list_entry = udev_device_get_tags_list_entry(udev_device);
+ if (udev_list_entry_get_by_name(list_entry, tag) != NULL)
+ return true;
+ return false;
}
-#define ENVP_SIZE 128
-#define MONITOR_BUF_SIZE 4096
+#define ENVP_SIZE 128
+#define MONITOR_BUF_SIZE 4096
static int update_envp_monitor_buf(struct udev_device *udev_device)
{
- struct udev_list_entry *list_entry;
- char *s;
- size_t l;
- unsigned int i;
-
- /* monitor buffer of property strings */
- free(udev_device->monitor_buf);
- udev_device->monitor_buf_len = 0;
- udev_device->monitor_buf = malloc(MONITOR_BUF_SIZE);
- if (udev_device->monitor_buf == NULL)
- return -ENOMEM;
-
- /* envp array, strings will point into monitor buffer */
- if (udev_device->envp == NULL)
- udev_device->envp = malloc(sizeof(char *) * ENVP_SIZE);
- if (udev_device->envp == NULL)
- return -ENOMEM;
-
- i = 0;
- s = udev_device->monitor_buf;
- l = MONITOR_BUF_SIZE;
- udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device)) {
- const char *key;
-
- key = udev_list_entry_get_name(list_entry);
- /* skip private variables */
- if (key[0] == '.')
- continue;
-
- /* add string to envp array */
- udev_device->envp[i++] = s;
- if (i+1 >= ENVP_SIZE)
- return -EINVAL;
-
- /* add property string to monitor buffer */
- l = util_strpcpyl(&s, l, key, "=", udev_list_entry_get_value(list_entry), NULL);
- if (l == 0)
- return -EINVAL;
- /* advance past the trailing '\0' that util_strpcpyl() guarantees */
- s++;
- l--;
- }
- udev_device->envp[i] = NULL;
- udev_device->monitor_buf_len = s - udev_device->monitor_buf;
- udev_device->envp_uptodate = true;
- dbg(udev_device->udev, "filled envp/monitor buffer, %u properties, %zu bytes\n",
- i, udev_device->monitor_buf_len);
- return 0;
+ struct udev_list_entry *list_entry;
+ char *s;
+ size_t l;
+ unsigned int i;
+
+ /* monitor buffer of property strings */
+ free(udev_device->monitor_buf);
+ udev_device->monitor_buf_len = 0;
+ udev_device->monitor_buf = malloc(MONITOR_BUF_SIZE);
+ if (udev_device->monitor_buf == NULL)
+ return -ENOMEM;
+
+ /* envp array, strings will point into monitor buffer */
+ if (udev_device->envp == NULL)
+ udev_device->envp = malloc(sizeof(char *) * ENVP_SIZE);
+ if (udev_device->envp == NULL)
+ return -ENOMEM;
+
+ i = 0;
+ s = udev_device->monitor_buf;
+ l = MONITOR_BUF_SIZE;
+ udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device)) {
+ const char *key;
+
+ key = udev_list_entry_get_name(list_entry);
+ /* skip private variables */
+ if (key[0] == '.')
+ continue;
+
+ /* add string to envp array */
+ udev_device->envp[i++] = s;
+ if (i+1 >= ENVP_SIZE)
+ return -EINVAL;
+
+ /* add property string to monitor buffer */
+ l = util_strpcpyl(&s, l, key, "=", udev_list_entry_get_value(list_entry), NULL);
+ if (l == 0)
+ return -EINVAL;
+ /* advance past the trailing '\0' that util_strpcpyl() guarantees */
+ s++;
+ l--;
+ }
+ udev_device->envp[i] = NULL;
+ udev_device->monitor_buf_len = s - udev_device->monitor_buf;
+ udev_device->envp_uptodate = true;
+ dbg(udev_device->udev, "filled envp/monitor buffer, %u properties, %zu bytes\n",
+ i, udev_device->monitor_buf_len);
+ return 0;
}
char **udev_device_get_properties_envp(struct udev_device *udev_device)
{
- if (!udev_device->envp_uptodate)
- if (update_envp_monitor_buf(udev_device) != 0)
- return NULL;
- return udev_device->envp;
+ if (!udev_device->envp_uptodate)
+ if (update_envp_monitor_buf(udev_device) != 0)
+ return NULL;
+ return udev_device->envp;
}
ssize_t udev_device_get_properties_monitor_buf(struct udev_device *udev_device, const char **buf)
{
- if (!udev_device->envp_uptodate)
- if (update_envp_monitor_buf(udev_device) != 0)
- return -EINVAL;
- *buf = udev_device->monitor_buf;
- return udev_device->monitor_buf_len;
+ if (!udev_device->envp_uptodate)
+ if (update_envp_monitor_buf(udev_device) != 0)
+ return -EINVAL;
+ *buf = udev_device->monitor_buf;
+ return udev_device->monitor_buf_len;
}
int udev_device_set_action(struct udev_device *udev_device, const char *action)
{
- free(udev_device->action);
- udev_device->action = strdup(action);
- if (udev_device->action == NULL)
- return -ENOMEM;
- udev_device_add_property(udev_device, "ACTION", udev_device->action);
- return 0;
+ free(udev_device->action);
+ udev_device->action = strdup(action);
+ if (udev_device->action == NULL)
+ return -ENOMEM;
+ udev_device_add_property(udev_device, "ACTION", udev_device->action);
+ return 0;
}
int udev_device_get_devlink_priority(struct udev_device *udev_device)
{
- if (!udev_device->info_loaded)
- udev_device_read_db(udev_device, NULL);
- return udev_device->devlink_priority;
+ if (!udev_device->info_loaded)
+ udev_device_read_db(udev_device, NULL);
+ return udev_device->devlink_priority;
}
int udev_device_set_devlink_priority(struct udev_device *udev_device, int prio)
{
- udev_device->devlink_priority = prio;
- return 0;
+ udev_device->devlink_priority = prio;
+ return 0;
}
int udev_device_get_watch_handle(struct udev_device *udev_device)
{
- if (!udev_device->info_loaded)
- udev_device_read_db(udev_device, NULL);
- return udev_device->watch_handle;
+ if (!udev_device->info_loaded)
+ udev_device_read_db(udev_device, NULL);
+ return udev_device->watch_handle;
}
int udev_device_set_watch_handle(struct udev_device *udev_device, int handle)
{
- udev_device->watch_handle = handle;
- return 0;
+ udev_device->watch_handle = handle;
+ return 0;
}
bool udev_device_get_db_persist(struct udev_device *udev_device)
{
- return udev_device->db_persist;
+ return udev_device->db_persist;
}
void udev_device_set_db_persist(struct udev_device *udev_device)
{
- udev_device->db_persist = true;
+ udev_device->db_persist = true;
}
~ianmdlvl / elogind.git / blobdiff