chiark / gitweb /
libudev: device - generate DEVNAME and DEVLINKS properties
[elogind.git] / udev / lib / libudev-device.c
index 0cb992c9eacb34472957abc44cf8c2c92c0896f9..943e104bf6fa1086400d7e624213f5f56e637f92 100644 (file)
@@ -39,8 +39,8 @@ struct udev_device {
        const char *sysname;
        char *devnode;
        char *subsystem;
-       struct list_node devlink_list;
-       struct list_node properties_list;
+       struct udev_list_node devlink_list;
+       struct udev_list_node properties_list;
        char *action;
        int event_timeout;
        char *driver;
@@ -52,18 +52,18 @@ struct udev_device {
        int num_fake_partitions;
        int devlink_priority;
        int ignore_remove;
-       struct list_node attr_list;
+       struct udev_list_node attr_list;
        int info_loaded;
 };
 
-static size_t syspath_to_db_path(struct udev_device *udev_device, char *filename, size_t len)
+static size_t devpath_to_db_path(struct udev *udev, const char *devpath, char *filename, size_t len)
 {
        size_t start;
 
        /* translate to location of db file */
-       util_strlcpy(filename, udev_get_dev_path(udev_device->udev), len);
+       util_strlcpy(filename, udev_get_dev_path(udev), len);
        start = util_strlcat(filename, "/.udev/db/", len);
-       util_strlcat(filename, udev_device->devpath, len);
+       util_strlcat(filename, devpath, len);
        return util_path_encode(&filename[start], len - start);
 }
 
@@ -74,7 +74,7 @@ static int device_read_db(struct udev_device *udev_device)
        char line[UTIL_LINE_SIZE];
        FILE *f;
 
-       syspath_to_db_path(udev_device, filename, sizeof(filename));
+       devpath_to_db_path(udev_device->udev, udev_device->devpath, filename, sizeof(filename));
 
        if (lstat(filename, &stats) != 0) {
                info(udev_device->udev, "no db file to read %s: %m\n", filename);
@@ -113,7 +113,7 @@ static int device_read_db(struct udev_device *udev_device)
                        util_strlcpy(linkname, udev_get_dev_path(udev_device->udev), sizeof(linkname));
                        util_strlcat(linkname, "/", sizeof(linkname));
                        util_strlcat(linkname, lnk, sizeof(linkname));
-                       device_add_devlink(udev_device, linkname);
+                       udev_device_add_devlink(udev_device, linkname);
                }
                info(udev_device->udev, "device %p filled with db symlink data '%s'\n", udev_device, udev_device->devnode);
                return 0;
@@ -142,22 +142,22 @@ static int device_read_db(struct udev_device *udev_device)
                        util_strlcpy(filename, udev_get_dev_path(udev_device->udev), sizeof(filename));
                        util_strlcat(filename, "/", sizeof(filename));
                        util_strlcat(filename, val, sizeof(filename));
-                       device_add_devlink(udev_device, filename);
+                       udev_device_add_devlink(udev_device, filename);
                        break;
                case 'L':
-                       device_set_devlink_priority(udev_device, atoi(val));
+                       udev_device_set_devlink_priority(udev_device, atoi(val));
                        break;
                case 'T':
-                       device_set_event_timeout(udev_device, atoi(val));
+                       udev_device_set_event_timeout(udev_device, atoi(val));
                        break;
                case 'A':
-                       device_set_num_fake_partitions(udev_device, atoi(val));
+                       udev_device_set_num_fake_partitions(udev_device, atoi(val));
                        break;
                case 'R':
-                       device_set_ignore_remove(udev_device, atoi(val));
+                       udev_device_set_ignore_remove(udev_device, atoi(val));
                        break;
                case 'E':
-                       device_add_property_from_string(udev_device, val);
+                       udev_device_add_property_from_string(udev_device, val);
                        break;
                }
        }
@@ -194,7 +194,7 @@ static int device_read_uevent_file(struct udev_device *udev_device)
                else if (strncmp(line, "MINOR=", 6) == 0)
                        min = strtoull(&line[6], NULL, 10);
 
-               device_add_property_from_string(udev_device, line);
+               udev_device_add_property_from_string(udev_device, line);
        }
 
        udev_device->devnum = makedev(maj, min);
@@ -210,7 +210,7 @@ static void device_load_info(struct udev_device *device)
        device->info_loaded = 1;
 }
 
-void device_set_info_loaded(struct udev_device *device)
+void udev_device_set_info_loaded(struct udev_device *device)
 {
        device->info_loaded = 1;
 }
@@ -228,9 +228,9 @@ struct udev_device *device_new(struct udev *udev)
        memset(udev_device, 0x00, sizeof(struct udev_device));
        udev_device->refcount = 1;
        udev_device->udev = udev;
-       list_init(&udev_device->devlink_list);
-       list_init(&udev_device->properties_list);
-       list_init(&udev_device->attr_list);
+       udev_list_init(&udev_device->devlink_list);
+       udev_list_init(&udev_device->properties_list);
+       udev_list_init(&udev_device->attr_list);
        info(udev_device->udev, "udev_device: %p created\n", udev_device);
        return udev_device;
 }
@@ -324,7 +324,7 @@ struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *
        if (udev_device == NULL)
                return NULL;
 
-       device_set_syspath(udev_device, path);
+       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;
@@ -581,13 +581,13 @@ void udev_device_unref(struct udev_device *udev_device)
        free(udev_device->syspath);
        free(udev_device->devnode);
        free(udev_device->subsystem);
-       list_cleanup(udev_device->udev, &udev_device->devlink_list);
-       list_cleanup(udev_device->udev, &udev_device->properties_list);
+       udev_list_cleanup(udev_device->udev, &udev_device->devlink_list);
+       udev_list_cleanup(udev_device->udev, &udev_device->properties_list);
        free(udev_device->action);
        free(udev_device->driver);
        free(udev_device->devpath_old);
        free(udev_device->physdevpath);
-       list_cleanup(udev_device->udev, &udev_device->attr_list);
+       udev_list_cleanup(udev_device->udev, &udev_device->attr_list);
        info(udev_device->udev, "udev_device: %p released\n", udev_device);
        free(udev_device);
 }
@@ -710,7 +710,7 @@ struct udev_list_entry *udev_device_get_devlinks_list_entry(struct udev_device *
                return NULL;
        if (!udev_device->info_loaded)
                device_load_info(udev_device);
-       return list_get_entry(&udev_device->devlink_list);
+       return udev_list_get_entry(&udev_device->devlink_list);
 }
 
 /**
@@ -731,7 +731,7 @@ struct udev_list_entry *udev_device_get_properties_list_entry(struct udev_device
                return NULL;
        if (!udev_device->info_loaded)
                device_load_info(udev_device);
-       return list_get_entry(&udev_device->properties_list);
+       return udev_list_get_entry(&udev_device->properties_list);
 }
 
 const char *udev_device_get_driver(struct udev_device *udev_device)
@@ -782,7 +782,7 @@ const char *udev_device_get_attr_value(struct udev_device *udev_device, const ch
        const char *val = NULL;
 
        /* look for possibly already cached result */
-       udev_list_entry_foreach(list_entry, list_get_entry(&udev_device->attr_list)) {
+       udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_device->attr_list)) {
                if (strcmp(udev_list_entry_get_name(list_entry), attr) == 0) {
                        info(udev_device->udev, "got '%s' (%s) from cache\n", attr, udev_list_entry_get_value(list_entry));
                        return udev_list_entry_get_value(list_entry);
@@ -811,7 +811,7 @@ const char *udev_device_get_attr_value(struct udev_device *udev_device, const ch
                        if (pos != NULL) {
                                pos = &pos[1];
                                info(udev_device->udev, "cache '%s' with link value '%s'\n", attr, pos);
-                               list_entry = list_entry_add(udev_device->udev, &udev_device->attr_list, attr, pos, 0, 0);
+                               list_entry = udev_list_entry_add(udev_device->udev, &udev_device->attr_list, attr, pos, 0, 0);
                                val = udev_list_entry_get_value(list_entry);
                        }
                }
@@ -843,19 +843,21 @@ const char *udev_device_get_attr_value(struct udev_device *udev_device, const ch
        value[size] = '\0';
        util_remove_trailing_chars(value, '\n');
        info(udev_device->udev, "'%s' has attribute value '%s'\n", path, value);
-       list_entry = list_entry_add(udev_device->udev, &udev_device->attr_list, attr, value, 0, 0);
+       list_entry = udev_list_entry_add(udev_device->udev, &udev_device->attr_list, attr, value, 0, 0);
        val = udev_list_entry_get_value(list_entry);
 out:
        return val;
 }
-int device_set_syspath(struct udev_device *udev_device, const char *syspath)
+int udev_device_set_syspath(struct udev_device *udev_device, const char *syspath)
 {
        const char *pos;
 
+       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;
@@ -863,37 +865,51 @@ int device_set_syspath(struct udev_device *udev_device, const char *syspath)
        return 0;
 }
 
-int device_set_subsystem(struct udev_device *udev_device, const char *subsystem)
+int udev_device_set_subsystem(struct udev_device *udev_device, const char *subsystem)
 {
        udev_device->subsystem = strdup(subsystem);
        if (udev_device->subsystem == NULL)
-               return -1;
+               return -ENOMEM;
+       udev_device_add_property(udev_device, "SUBSYSTEM", udev_device->subsystem);
        return 0;
 }
 
-int device_set_devnode(struct udev_device *udev_device, const char *devnode)
+int udev_device_set_devnode(struct udev_device *udev_device, const char *devnode)
 {
        udev_device->devnode = strdup(devnode);
        if (udev_device->devnode == NULL)
                return -ENOMEM;
+       udev_device_add_property(udev_device, "DEVNODE", udev_device->devnode);
        return 0;
 }
 
-int device_add_devlink(struct udev_device *udev_device, const char *devlink)
+int udev_device_add_devlink(struct udev_device *udev_device, const char *devlink)
 {
-       if (list_entry_add(udev_device->udev, &udev_device->devlink_list, devlink, NULL, 1, 0) == NULL)
+       char symlinks[UTIL_PATH_SIZE];
+       struct udev_list_entry *list_entry;
+
+       if (udev_list_entry_add(udev_device->udev, &udev_device->devlink_list, devlink, NULL, 1, 0) == NULL)
                return -ENOMEM;
+
+       list_entry =  udev_device_get_devlinks_list_entry(udev_device);
+       util_strlcpy(symlinks, udev_list_entry_get_name(list_entry), sizeof(symlinks));
+       udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry)) {
+               util_strlcat(symlinks, " ", sizeof(symlinks));
+               util_strlcat(symlinks, udev_list_entry_get_name(list_entry), sizeof(symlinks));
+       }
+       udev_device_add_property(udev_device, "DEVLINKS", symlinks);
+
        return 0;
 }
 
-int device_add_property(struct udev_device *udev_device, const char *key, const char *value)
+int udev_device_add_property(struct udev_device *udev_device, const char *key, const char *value)
 {
-       if (list_entry_add(udev_device->udev, &udev_device->properties_list, key, value, 1, 0) == NULL)
+       if (udev_list_entry_add(udev_device->udev, &udev_device->properties_list, key, value, 1, 0) == NULL)
                return -ENOMEM;
        return 0;
 }
 
-int device_add_property_from_string(struct udev_device *udev_device, const char *property)
+int udev_device_add_property_from_string(struct udev_device *udev_device, const char *property)
 {
        char name[UTIL_PATH_SIZE];
        char *val;
@@ -906,19 +922,20 @@ int device_add_property_from_string(struct udev_device *udev_device, const char
        val = &val[1];
        if (val[0] == '\0')
                val = NULL;
-       device_add_property(udev_device, name, val);
+       udev_device_add_property(udev_device, name, val);
        return 0;
 }
 
-int device_set_action(struct udev_device *udev_device, const char *action)
+int udev_device_set_action(struct udev_device *udev_device, const char *action)
 {
+       udev_device_add_property(udev_device, "ACTION", action);
        udev_device->action = strdup(action);
        if (udev_device->action == NULL)
                return -ENOMEM;
        return 0;
 }
 
-int device_set_driver(struct udev_device *udev_device, const char *driver)
+int udev_device_set_driver(struct udev_device *udev_device, const char *driver)
 {
        udev_device->driver = strdup(driver);
        if (udev_device->driver == NULL)
@@ -926,12 +943,12 @@ int device_set_driver(struct udev_device *udev_device, const char *driver)
        return 0;
 }
 
-const char *device_get_devpath_old(struct udev_device *udev_device)
+const char *udev_device_get_devpath_old(struct udev_device *udev_device)
 {
        return udev_device->devpath_old;
 }
 
-int device_set_devpath_old(struct udev_device *udev_device, const char *devpath_old)
+int udev_device_set_devpath_old(struct udev_device *udev_device, const char *devpath_old)
 {
        udev_device->devpath_old = strdup(devpath_old);
        if (udev_device->devpath_old == NULL)
@@ -939,12 +956,12 @@ int device_set_devpath_old(struct udev_device *udev_device, const char *devpath_
        return 0;
 }
 
-const char *device_get_physdevpath(struct udev_device *udev_device)
+const char *udev_device_get_physdevpath(struct udev_device *udev_device)
 {
        return udev_device->physdevpath;
 }
 
-int device_set_physdevpath(struct udev_device *udev_device, const char *physdevpath)
+int udev_device_set_physdevpath(struct udev_device *udev_device, const char *physdevpath)
 {
        udev_device->physdevpath = strdup(physdevpath);
        if (udev_device->physdevpath == NULL)
@@ -952,77 +969,76 @@ int device_set_physdevpath(struct udev_device *udev_device, const char *physdevp
        return 0;
 }
 
-int device_get_timeout(struct udev_device *udev_device)
+int udev_device_get_timeout(struct udev_device *udev_device)
 {
        return udev_device->timeout;
 }
 
-int device_set_timeout(struct udev_device *udev_device, int timeout)
+int udev_device_set_timeout(struct udev_device *udev_device, int timeout)
 {
        udev_device->timeout = timeout;
        return 0;
 }
-int device_get_event_timeout(struct udev_device *udev_device)
+int udev_device_get_event_timeout(struct udev_device *udev_device)
 {
        if (!udev_device->info_loaded)
                device_load_info(udev_device);
        return udev_device->event_timeout;
 }
 
-int device_set_event_timeout(struct udev_device *udev_device, int event_timeout)
+int udev_device_set_event_timeout(struct udev_device *udev_device, int event_timeout)
 {
        udev_device->event_timeout = event_timeout;
        return 0;
 }
 
-int device_set_seqnum(struct udev_device *udev_device, unsigned long long int seqnum)
+int udev_device_set_seqnum(struct udev_device *udev_device, unsigned long long int seqnum)
 {
        udev_device->seqnum = seqnum;
        return 0;
 }
 
-int device_set_devnum(struct udev_device *udev_device, dev_t devnum)
+int udev_device_set_devnum(struct udev_device *udev_device, dev_t devnum)
 {
        udev_device->devnum = devnum;
        return 0;
 }
 
-int device_get_num_fake_partitions(struct udev_device *udev_device)
+int udev_device_get_num_fake_partitions(struct udev_device *udev_device)
 {
        if (!udev_device->info_loaded)
                device_load_info(udev_device);
        return udev_device->num_fake_partitions;
 }
 
-int device_set_num_fake_partitions(struct udev_device *udev_device, int num)
+int udev_device_set_num_fake_partitions(struct udev_device *udev_device, int num)
 {
        udev_device->num_fake_partitions = num;
        return 0;
 }
 
-int device_get_devlink_priority(struct udev_device *udev_device)
+int udev_device_get_devlink_priority(struct udev_device *udev_device)
 {
        if (!udev_device->info_loaded)
                device_load_info(udev_device);
        return udev_device->devlink_priority;
 }
 
-int device_set_devlink_priority(struct udev_device *udev_device, int prio)
+int udev_device_set_devlink_priority(struct udev_device *udev_device, int prio)
 {
         udev_device->devlink_priority = prio;
        return 0;
 }
 
-int device_get_ignore_remove(struct udev_device *udev_device)
+int udev_device_get_ignore_remove(struct udev_device *udev_device)
 {
        if (!udev_device->info_loaded)
                device_load_info(udev_device);
        return udev_device->ignore_remove;
 }
 
-int device_set_ignore_remove(struct udev_device *udev_device, int ignore)
+int udev_device_set_ignore_remove(struct udev_device *udev_device, int ignore)
 {
        udev_device->ignore_remove = ignore;
        return 0;
 }
-