X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev%2Fudev_node.c;h=462f1b633b880c695301511c778c3799d261764b;hp=33183c8d2a8647b7d6d4437ee79eb06f0b1c8703;hb=7d563a17f3967890331daf08d43f2f005418139b;hpb=cf8ec631a23eae532541bfeeccce20f0d978404d

diff --git a/udev/udev_node.c b/udev/udev_node.c
index 33183c8d2..462f1b633 100644
--- a/udev/udev_node.c
+++ b/udev/udev_node.c
@@ -35,69 +35,68 @@
 
 #define TMP_FILE_EXT		".udev-tmp"
 
-int udev_node_mknod(struct udevice *udev, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid)
+int udev_node_mknod(struct udevice *udevice, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid)
 {
 	char file_tmp[PATH_SIZE + sizeof(TMP_FILE_EXT)];
 	struct stat stats;
 	int preserve = 0;
 	int err = 0;
 
-	if (major(devt) != 0 && strcmp(udev->dev->subsystem, "block") == 0)
+	if (major(devt) != 0 && strcmp(udevice->dev->subsystem, "block") == 0)
 		mode |= S_IFBLK;
 	else
 		mode |= S_IFCHR;
 
 	if (lstat(file, &stats) == 0) {
 		if (((stats.st_mode & S_IFMT) == (mode & S_IFMT)) && (stats.st_rdev == devt)) {
-			info("preserve file '%s', because it has correct dev_t\n", file);
+			info(udevice->udev, "preserve file '%s', because it has correct dev_t\n", file);
 			preserve = 1;
-			selinux_setfilecon(file, udev->dev->kernel, mode);
+			selinux_setfilecon(udevice->udev, file, udevice->dev->kernel, mode);
 		} else {
-			info("atomically replace existing file '%s'\n", file);
+			info(udevice->udev, "atomically replace existing file '%s'\n", file);
 			strlcpy(file_tmp, file, sizeof(file_tmp));
 			strlcat(file_tmp, TMP_FILE_EXT, sizeof(file_tmp));
 			unlink(file_tmp);
-			selinux_setfscreatecon(file_tmp, udev->dev->kernel, mode);
+			selinux_setfscreatecon(udevice->udev, file_tmp, udevice->dev->kernel, mode);
 			err = mknod(file_tmp, mode, devt);
-			selinux_resetfscreatecon();
+			selinux_resetfscreatecon(udevice->udev);
 			if (err != 0) {
-				err("mknod(%s, %#o, %u, %u) failed: %s\n",
+				err(udevice->udev, "mknod(%s, %#o, %u, %u) failed: %s\n",
 				    file_tmp, mode, major(devt), minor(devt), strerror(errno));
 				goto exit;
 			}
 			err = rename(file_tmp, file);
 			if (err != 0) {
-				err("rename(%s, %s) failed: %s\n",
-				    file_tmp, file, strerror(errno));
+				err(udevice->udev, "rename(%s, %s) failed: %s\n", file_tmp, file, strerror(errno));
 				unlink(file_tmp);
 			}
 		}
 	} else {
-		info("mknod(%s, %#o, (%u,%u))\n", file, mode, major(devt), minor(devt));
-		selinux_setfscreatecon(file, udev->dev->kernel, mode);
+		info(udevice->udev, "mknod(%s, %#o, (%u,%u))\n", file, mode, major(devt), minor(devt));
+		selinux_setfscreatecon(udevice->udev, file, udevice->dev->kernel, mode);
 		err = mknod(file, mode, devt);
-		selinux_resetfscreatecon();
+		selinux_resetfscreatecon(udevice->udev);
 		if (err != 0) {
-			err("mknod(%s, %#o, (%u,%u) failed: %s\n",
+			err(udevice->udev, "mknod(%s, %#o, (%u,%u) failed: %s\n",
 			    file, mode, major(devt), minor(devt), strerror(errno));
 			goto exit;
 		}
 	}
 
 	if (!preserve || stats.st_mode != mode) {
-		info("chmod(%s, %#o)\n", file, mode);
+		info(udevice->udev, "chmod(%s, %#o)\n", file, mode);
 		err = chmod(file, mode);
 		if (err != 0) {
-			err("chmod(%s, %#o) failed: %s\n", file, mode, strerror(errno));
+			err(udevice->udev, "chmod(%s, %#o) failed: %s\n", file, mode, strerror(errno));
 			goto exit;
 		}
 	}
 
 	if (!preserve || stats.st_uid != uid || stats.st_gid != gid) {
-		info("chown(%s, %u, %u)\n", file, uid, gid);
+		info(udevice->udev, "chown(%s, %u, %u)\n", file, uid, gid);
 		err = chown(file, uid, gid);
 		if (err != 0) {
-			err("chown(%s, %u, %u) failed: %s\n", file, uid, gid, strerror(errno));
+			err(udevice->udev, "chown(%s, %u, %u) failed: %s\n", file, uid, gid, strerror(errno));
 			goto exit;
 		}
 	}
@@ -105,7 +104,7 @@ exit:
 	return err;
 }
 
-static int node_symlink(const char *node, const char *slink)
+static int node_symlink(struct udevice *udevice, const char *node, const char *slink)
 {
 	struct stat stats;
 	char target[PATH_SIZE] = "";
@@ -133,53 +132,53 @@ static int node_symlink(const char *node, const char *slink)
 		if (S_ISBLK(stats.st_mode) || S_ISCHR(stats.st_mode)) {
 			struct stat stats2;
 
-			info("found existing node instead of symlink '%s'\n", slink);
+			info(udevice->udev, "found existing node instead of symlink '%s'\n", slink);
 			if (lstat(node, &stats2) == 0) {
 				if ((stats.st_mode & S_IFMT) == (stats2.st_mode & S_IFMT) &&
 				    stats.st_rdev == stats2.st_rdev) {
-					info("replace device node '%s' with symlink to our node '%s'\n", slink, node);
+					info(udevice->udev, "replace device node '%s' with symlink to our node '%s'\n", slink, node);
 				} else {
-					err("device node '%s' already exists, link to '%s' will not overwrite it\n", slink, node);
+					err(udevice->udev, "device node '%s' already exists, link to '%s' will not overwrite it\n", slink, node);
 					goto exit;
 				}
 			}
 		} else if (S_ISLNK(stats.st_mode)) {
 			char buf[PATH_SIZE];
 
-			info("found existing symlink '%s'\n", slink);
+			info(udevice->udev, "found existing symlink '%s'\n", slink);
 			len = readlink(slink, buf, sizeof(buf));
 			if (len > 0) {
 				buf[len] = '\0';
 				if (strcmp(target, buf) == 0) {
-					info("preserve already existing symlink '%s' to '%s'\n", slink, target);
-					selinux_setfilecon(slink, NULL, S_IFLNK);
+					info(udevice->udev, "preserve already existing symlink '%s' to '%s'\n", slink, target);
+					selinux_setfilecon(udevice->udev, slink, NULL, S_IFLNK);
 					goto exit;
 				}
 			}
 		}
 	} else {
-		info("creating symlink '%s' to '%s'\n", slink, target);
-		selinux_setfscreatecon(slink, NULL, S_IFLNK);
+		info(udevice->udev, "creating symlink '%s' to '%s'\n", slink, target);
+		selinux_setfscreatecon(udevice->udev, slink, NULL, S_IFLNK);
 		retval = symlink(target, slink);
-		selinux_resetfscreatecon();
+		selinux_resetfscreatecon(udevice->udev);
 		if (retval == 0)
 			goto exit;
 	}
 
-	info("atomically replace '%s'\n", slink);
+	info(udevice->udev, "atomically replace '%s'\n", slink);
 	strlcpy(slink_tmp, slink, sizeof(slink_tmp));
 	strlcat(slink_tmp, TMP_FILE_EXT, sizeof(slink_tmp));
 	unlink(slink_tmp);
-	selinux_setfscreatecon(slink, NULL, S_IFLNK);
+	selinux_setfscreatecon(udevice->udev, slink, NULL, S_IFLNK);
 	retval = symlink(target, slink_tmp);
-	selinux_resetfscreatecon();
+	selinux_resetfscreatecon(udevice->udev);
 	if (retval != 0) {
-		err("symlink(%s, %s) failed: %s\n", target, slink_tmp, strerror(errno));
+		err(udevice->udev, "symlink(%s, %s) failed: %s\n", target, slink_tmp, strerror(errno));
 		goto exit;
 	}
 	retval = rename(slink_tmp, slink);
 	if (retval != 0) {
-		err("rename(%s, %s) failed: %s\n", slink_tmp, slink, strerror(errno));
+		err(udevice->udev, "rename(%s, %s) failed: %s\n", slink_tmp, slink, strerror(errno));
 		unlink(slink_tmp);
 		goto exit;
 	}
@@ -187,100 +186,100 @@ exit:
 	return retval;
 }
 
-static int update_link(struct udevice *udev, const char *name)
+static int update_link(struct udevice *udevice, const char *name)
 {
 	LIST_HEAD(name_list);
 	char slink[PATH_SIZE];
 	char node[PATH_SIZE];
-	struct udevice *udev_db;
+	struct udevice *udevice_db;
 	struct name_entry *device;
 	char target[PATH_MAX] = "";
 	int count;
 	int priority = 0;
 	int rc = 0;
 
-	strlcpy(slink, udev_root, sizeof(slink));
+	strlcpy(slink, udev_get_dev_path(udevice->udev), sizeof(slink));
 	strlcat(slink, "/", sizeof(slink));
 	strlcat(slink, name, sizeof(slink));
 
-	count = udev_db_get_devices_by_name(name, &name_list);
-	info("found %i devices with name '%s'\n", count, name);
+	count = udev_db_get_devices_by_name(udevice->udev, name, &name_list);
+	info(udevice->udev, "found %i devices with name '%s'\n", count, name);
 
 	/* if we don't have a reference, delete it */
 	if (count <= 0) {
-		info("no reference left, remove '%s'\n", name);
-		if (!udev->test_run) {
+		info(udevice->udev, "no reference left, remove '%s'\n", name);
+		if (!udevice->test_run) {
 			unlink(slink);
-			delete_path(slink);
+			delete_path(udevice->udev, slink);
 		}
 		goto out;
 	}
 
 	/* find the device with the highest priority */
 	list_for_each_entry(device, &name_list, node) {
-		info("found '%s' for '%s'\n", device->name, name);
+		info(udevice->udev, "found '%s' for '%s'\n", device->name, name);
 
 		/* did we find ourself? we win, if we have the same priority */
-		if (strcmp(udev->dev->devpath, device->name) == 0) {
-			info("compare (our own) priority of '%s' %i >= %i\n",
-			     udev->dev->devpath, udev->link_priority, priority);
-			if (strcmp(udev->name, name) == 0) {
-				info("'%s' is our device node, database inconsistent, skip link update\n", udev->name);
-			} else if (target[0] == '\0' || udev->link_priority >= priority) {
-				priority = udev->link_priority;
-				strlcpy(target, udev->name, sizeof(target));
+		if (strcmp(udevice->dev->devpath, device->name) == 0) {
+			info(udevice->udev, "compare (our own) priority of '%s' %i >= %i\n",
+			     udevice->dev->devpath, udevice->link_priority, priority);
+			if (strcmp(udevice->name, name) == 0) {
+				info(udevice->udev, "'%s' is our device node, database inconsistent, skip link update\n", udevice->name);
+			} else if (target[0] == '\0' || udevice->link_priority >= priority) {
+				priority = udevice->link_priority;
+				strlcpy(target, udevice->name, sizeof(target));
 			}
 			continue;
 		}
 
 		/* another device, read priority from database */
-		udev_db = udev_device_init();
-		if (udev_db == NULL)
+		udevice_db = udev_device_init(udevice->udev);
+		if (udevice_db == NULL)
 			continue;
-		if (udev_db_get_device(udev_db, device->name) == 0) {
-			if (strcmp(udev_db->name, name) == 0) {
-				info("'%s' is a device node of '%s', skip link update\n", udev_db->name, device->name);
+		if (udev_db_get_device(udevice_db, device->name) == 0) {
+			if (strcmp(udevice_db->name, name) == 0) {
+				info(udevice->udev, "'%s' is a device node of '%s', skip link update\n", udevice_db->name, device->name);
 			} else {
-				info("compare priority of '%s' %i > %i\n",
-				     udev_db->dev->devpath, udev_db->link_priority, priority);
-				if (target[0] == '\0' || udev_db->link_priority > priority) {
-					priority = udev_db->link_priority;
-					strlcpy(target, udev_db->name, sizeof(target));
+				info(udevice->udev, "compare priority of '%s' %i > %i\n",
+				     udevice_db->dev->devpath, udevice_db->link_priority, priority);
+				if (target[0] == '\0' || udevice_db->link_priority > priority) {
+					priority = udevice_db->link_priority;
+					strlcpy(target, udevice_db->name, sizeof(target));
 				}
 			}
 		}
-		udev_device_cleanup(udev_db);
+		udev_device_cleanup(udevice_db);
 	}
-	name_list_cleanup(&name_list);
+	name_list_cleanup(udevice->udev, &name_list);
 
 	if (target[0] == '\0') {
-		info("no current target for '%s' found\n", name);
+		info(udevice->udev, "no current target for '%s' found\n", name);
 		rc = 1;
 		goto out;
 	}
 
 	/* create symlink to the target with the highest priority */
-	strlcpy(node, udev_root, sizeof(node));
+	strlcpy(node, udev_get_dev_path(udevice->udev), sizeof(node));
 	strlcat(node, "/", sizeof(node));
 	strlcat(node, target, sizeof(node));
-	info("'%s' with target '%s' has the highest priority %i, create it\n", name, target, priority);
-	if (!udev->test_run) {
-		create_path(slink);
-		node_symlink(node, slink);
+	info(udevice->udev, "'%s' with target '%s' has the highest priority %i, create it\n", name, target, priority);
+	if (!udevice->test_run) {
+		create_path(udevice->udev, slink);
+		node_symlink(udevice, node, slink);
 	}
 out:
 	return rc;
 }
 
-void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old)
+void udev_node_update_symlinks(struct udevice *udevice, struct udevice *udevice_old)
 {
 	struct name_entry *name_loop;
 	char symlinks[PATH_SIZE] = "";
 
-	list_for_each_entry(name_loop, &udev->symlink_list, node) {
-		info("update symlink '%s' of '%s'\n", name_loop->name, udev->dev->devpath);
-		update_link(udev, name_loop->name);
-		strlcat(symlinks, udev_root, sizeof(symlinks));
+	list_for_each_entry(name_loop, &udevice->symlink_list, node) {
+		info(udevice->udev, "update symlink '%s' of '%s'\n", name_loop->name, udevice->dev->devpath);
+		update_link(udevice, name_loop->name);
+		strlcat(symlinks, udev_get_dev_path(udevice->udev), sizeof(symlinks));
 		strlcat(symlinks, "/", sizeof(symlinks));
 		strlcat(symlinks, name_loop->name, sizeof(symlinks));
 		strlcat(symlinks, " ", sizeof(symlinks));
@@ -292,15 +291,15 @@ void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old)
 		setenv("DEVLINKS", symlinks, 1);
 
 	/* update possible left-over symlinks (device metadata changed) */
-	if (udev_old != NULL) {
+	if (udevice_old != NULL) {
 		struct name_entry *link_loop;
 		struct name_entry *link_old_loop;
 		int found;
 
 		/* remove current symlinks from old list */
-		list_for_each_entry(link_old_loop, &udev_old->symlink_list, node) {
+		list_for_each_entry(link_old_loop, &udevice_old->symlink_list, node) {
 			found = 0;
-			list_for_each_entry(link_loop, &udev->symlink_list, node) {
+			list_for_each_entry(link_loop, &udevice->symlink_list, node) {
 				if (strcmp(link_old_loop->name, link_loop->name) == 0) {
 					found = 1;
 					break;
@@ -308,9 +307,9 @@ void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old)
 			}
 			if (!found) {
 				/* link does no longer belong to this device */
-				info("update old symlink '%s' no longer belonging to '%s'\n",
-				     link_old_loop->name, udev->dev->devpath);
-				update_link(udev, link_old_loop->name);
+				info(udevice->udev, "update old symlink '%s' no longer belonging to '%s'\n",
+				     link_old_loop->name, udevice->dev->devpath);
+				update_link(udevice, link_old_loop->name);
 			}
 		}
 
@@ -318,12 +317,12 @@ void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old)
 		 * if the node name has changed, delete the node,
 		 * or possibly restore a symlink of another device
 		 */
-		if (strcmp(udev->name, udev_old->name) != 0)
-			update_link(udev, udev_old->name);
+		if (strcmp(udevice->name, udevice_old->name) != 0)
+			update_link(udevice, udevice_old->name);
 	}
 }
 
-int udev_node_add(struct udevice *udev)
+int udev_node_add(struct udevice *udevice)
 {
 	char filename[PATH_SIZE];
 	uid_t uid;
@@ -331,42 +330,42 @@ int udev_node_add(struct udevice *udev)
 	int i;
 	int retval = 0;
 
-	strlcpy(filename, udev_root, sizeof(filename));
+	strlcpy(filename, udev_get_dev_path(udevice->udev), sizeof(filename));
 	strlcat(filename, "/", sizeof(filename));
-	strlcat(filename, udev->name, sizeof(filename));
-	create_path(filename);
+	strlcat(filename, udevice->name, sizeof(filename));
+	create_path(udevice->udev, filename);
 
-	if (strcmp(udev->owner, "root") == 0)
+	if (strcmp(udevice->owner, "root") == 0)
 		uid = 0;
 	else {
 		char *endptr;
 		unsigned long id;
 
-		id = strtoul(udev->owner, &endptr, 10);
+		id = strtoul(udevice->owner, &endptr, 10);
 		if (endptr[0] == '\0')
 			uid = (uid_t) id;
 		else
-			uid = lookup_user(udev->owner);
+			uid = lookup_user(udevice->udev, udevice->owner);
 	}
 
-	if (strcmp(udev->group, "root") == 0)
+	if (strcmp(udevice->group, "root") == 0)
 		gid = 0;
 	else {
 		char *endptr;
 		unsigned long id;
 
-		id = strtoul(udev->group, &endptr, 10);
+		id = strtoul(udevice->group, &endptr, 10);
 		if (endptr[0] == '\0')
 			gid = (gid_t) id;
 		else
-			gid = lookup_group(udev->group);
+			gid = lookup_group(udevice->udev, udevice->group);
 	}
 
-	info("creating device node '%s', major=%d, minor=%d, mode=%#o, uid=%d, gid=%d\n",
-	     filename, major(udev->devt), minor(udev->devt), udev->mode, uid, gid);
+	info(udevice->udev, "creating device node '%s', major=%d, minor=%d, mode=%#o, uid=%d, gid=%d\n",
+	     filename, major(udevice->devt), minor(udevice->devt), udevice->mode, uid, gid);
 
-	if (!udev->test_run)
-		if (udev_node_mknod(udev, filename, udev->devt, udev->mode, uid, gid) != 0) {
+	if (!udevice->test_run)
+		if (udev_node_mknod(udevice, filename, udevice->devt, udevice->mode, uid, gid) != 0) {
 			retval = -1;
 			goto exit;
 		}
@@ -374,27 +373,27 @@ int udev_node_add(struct udevice *udev)
 	setenv("DEVNAME", filename, 1);
 
 	/* create all_partitions if requested */
-	if (udev->partitions) {
+	if (udevice->partitions) {
 		char partitionname[PATH_SIZE];
 		char *attr;
 		int range;
 
 		/* take the maximum registered minor range */
-		attr = sysfs_attr_get_value(udev->dev->devpath, "range");
+		attr = sysfs_attr_get_value(udevice->udev, udevice->dev->devpath, "range");
 		if (attr != NULL) {
 			range = atoi(attr);
 			if (range > 1)
-				udev->partitions = range-1;
+				udevice->partitions = range-1;
 		}
-		info("creating device partition nodes '%s[1-%i]'\n", filename, udev->partitions);
-		if (!udev->test_run) {
-			for (i = 1; i <= udev->partitions; i++) {
+		info(udevice->udev, "creating device partition nodes '%s[1-%i]'\n", filename, udevice->partitions);
+		if (!udevice->test_run) {
+			for (i = 1; i <= udevice->partitions; i++) {
 				dev_t part_devt;
 
 				snprintf(partitionname, sizeof(partitionname), "%s%d", filename, i);
 				partitionname[sizeof(partitionname)-1] = '\0';
-				part_devt = makedev(major(udev->devt), minor(udev->devt) + i);
-				udev_node_mknod(udev, partitionname, part_devt, udev->mode, uid, gid);
+				part_devt = makedev(major(udevice->devt), minor(udevice->devt) + i);
+				udev_node_mknod(udevice, partitionname, part_devt, udevice->mode, uid, gid);
 			}
 		}
 	}
@@ -402,7 +401,7 @@ exit:
 	return retval;
 }
 
-int udev_node_remove(struct udevice *udev)
+int udev_node_remove(struct udevice *udevice)
 {
 	char filename[PATH_SIZE];
 	char partitionname[PATH_SIZE];
@@ -410,39 +409,39 @@ int udev_node_remove(struct udevice *udev)
 	int retval = 0;
 	int num;
 
-	strlcpy(filename, udev_root, sizeof(filename));
+	strlcpy(filename, udev_get_dev_path(udevice->udev), sizeof(filename));
 	strlcat(filename, "/", sizeof(filename));
-	strlcat(filename, udev->name, sizeof(filename));
+	strlcat(filename, udevice->name, sizeof(filename));
 	if (stat(filename, &stats) != 0) {
-		info("device node '%s' not found\n", filename);
+		info(udevice->udev, "device node '%s' not found\n", filename);
 		return 0;
 	}
-	if (udev->devt && stats.st_rdev != udev->devt) {
-		info("device node '%s' points to a different device, skip removal\n", filename);
+	if (udevice->devt && stats.st_rdev != udevice->devt) {
+		info(udevice->udev, "device node '%s' points to a different device, skip removal\n", filename);
 		return -1;
 	}
 
-	info("removing device node '%s'\n", filename);
-	if (!udev->test_run)
-		retval = unlink_secure(filename);
+	info(udevice->udev, "removing device node '%s'\n", filename);
+	if (!udevice->test_run)
+		retval = unlink_secure(udevice->udev, filename);
 	if (retval)
 		return retval;
 
 	setenv("DEVNAME", filename, 1);
-	num = udev->partitions;
+	num = udevice->partitions;
 	if (num > 0) {
 		int i;
 
-		info("removing all_partitions '%s[1-%i]'\n", filename, num);
+		info(udevice->udev, "removing all_partitions '%s[1-%i]'\n", filename, num);
 		if (num > 255)
 			return -1;
 		for (i = 1; i <= num; i++) {
 			snprintf(partitionname, sizeof(partitionname), "%s%d", filename, i);
 			partitionname[sizeof(partitionname)-1] = '\0';
-			if (!udev->test_run)
-				unlink_secure(partitionname);
+			if (!udevice->test_run)
+				unlink_secure(udevice->udev, partitionname);
 		}
 	}
-	delete_path(filename);
+	delete_path(udevice->udev, filename);
 	return retval;
 }