chiark / gitweb /
shared/acl-util: add mask only when needed, always add base ACLs
[elogind.git] / src / tmpfiles / tmpfiles.c
index 28c395bb00c74756855c4ebd7232f6f9a5686cb6..7edeeb742840ffbe96ed32a7b0e8c8b8873ee121 100644 (file)
@@ -4,6 +4,7 @@
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering, Kay Sievers
+  Copyright 2015 Zbigniew JÄ™drzejewski-Szmek
 
   systemd is free software; you can redistribute it and/or modify it
   under the terms of the GNU Lesser General Public License as published by
@@ -23,7 +24,6 @@
 #include <fcntl.h>
 #include <errno.h>
 #include <string.h>
-#include <sys/stat.h>
 #include <limits.h>
 #include <dirent.h>
 #include <grp.h>
 #include <getopt.h>
 #include <stdbool.h>
 #include <time.h>
-#include <sys/types.h>
-#include <sys/param.h>
 #include <glob.h>
 #include <fnmatch.h>
-#include <sys/capability.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/xattr.h>
 
 #include "log.h"
 #include "util.h"
@@ -54,6 +55,9 @@
 #include "specifier.h"
 #include "build.h"
 #include "copy.h"
+#include "selinux-util.h"
+#include "btrfs-util.h"
+#include "acl-util.h"
 
 /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
  * them in the file system. This is intended to be used to create
@@ -66,6 +70,7 @@ typedef enum ItemType {
         TRUNCATE_FILE = 'F',
         CREATE_DIRECTORY = 'd',
         TRUNCATE_DIRECTORY = 'D',
+        CREATE_SUBVOLUME = 'v',
         CREATE_FIFO = 'p',
         CREATE_SYMLINK = 'L',
         CREATE_CHAR_DEVICE = 'c',
@@ -73,6 +78,10 @@ typedef enum ItemType {
         COPY_FILES = 'C',
 
         /* These ones take globs */
+        SET_XATTR = 't',
+        RECURSIVE_SET_XATTR = 'T',
+        SET_ACL = 'a',
+        RECURSIVE_SET_ACL = 'A',
         WRITE_FILE = 'w',
         IGNORE_PATH = 'x',
         IGNORE_DIRECTORY_PATH = 'X',
@@ -88,6 +97,11 @@ typedef struct Item {
 
         char *path;
         char *argument;
+        char **xattrs;
+#ifdef HAVE_ACL
+        acl_t acl_access;
+        acl_t acl_default;
+#endif
         uid_t uid;
         gid_t gid;
         mode_t mode;
@@ -108,6 +122,12 @@ typedef struct Item {
         bool done:1;
 } Item;
 
+typedef struct ItemArray {
+        Item *items;
+        size_t count;
+        size_t size;
+} ItemArray;
+
 static bool arg_create = false;
 static bool arg_clean = false;
 static bool arg_remove = false;
@@ -117,15 +137,7 @@ static char **arg_include_prefixes = NULL;
 static char **arg_exclude_prefixes = NULL;
 static char *arg_root = NULL;
 
-static const char conf_file_dirs[] =
-        "/etc/tmpfiles.d\0"
-        "/run/tmpfiles.d\0"
-        "/usr/local/lib/tmpfiles.d\0"
-        "/usr/lib/tmpfiles.d\0"
-#ifdef HAVE_SPLIT_USR
-        "/lib/tmpfiles.d\0"
-#endif
-        ;
+static const char conf_file_dirs[] = CONF_DIRS_NULSTR("tmpfiles");
 
 #define MAX_DEPTH 256
 
@@ -141,16 +153,47 @@ static bool needs_glob(ItemType t) {
                       RECURSIVE_REMOVE_PATH,
                       ADJUST_MODE,
                       RELABEL_PATH,
-                      RECURSIVE_RELABEL_PATH);
+                      RECURSIVE_RELABEL_PATH,
+                      SET_XATTR,
+                      RECURSIVE_SET_XATTR,
+                      SET_ACL,
+                      RECURSIVE_SET_ACL);
+}
+
+static bool takes_ownership(ItemType t) {
+        return IN_SET(t,
+                      CREATE_FILE,
+                      TRUNCATE_FILE,
+                      CREATE_DIRECTORY,
+                      TRUNCATE_DIRECTORY,
+                      CREATE_SUBVOLUME,
+                      CREATE_FIFO,
+                      CREATE_SYMLINK,
+                      CREATE_CHAR_DEVICE,
+                      CREATE_BLOCK_DEVICE,
+                      COPY_FILES,
+
+                      WRITE_FILE,
+                      IGNORE_PATH,
+                      IGNORE_DIRECTORY_PATH,
+                      REMOVE_PATH,
+                      RECURSIVE_REMOVE_PATH);
 }
 
 static struct Item* find_glob(Hashmap *h, const char *match) {
-        Item *j;
+        ItemArray *j;
         Iterator i;
 
-        HASHMAP_FOREACH(j, h, i)
-                if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
-                        return j;
+        HASHMAP_FOREACH(j, h, i) {
+                unsigned n;
+
+                for (n = 0; n < j->count; n++) {
+                        Item *item = j->items + n;
+
+                        if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
+                                return item;
+                }
+        }
 
         return NULL;
 }
@@ -233,10 +276,7 @@ static bool unix_socket_alive(const char *fn) {
 
 static int dir_is_mount_point(DIR *d, const char *subdir) {
 
-        union file_handle_union h = {
-                .handle.handle_bytes = MAX_HANDLE_SZ
-        };
-
+        union file_handle_union h = FILE_HANDLE_INIT;
         int mount_id_parent, mount_id;
         int r_p, r;
 
@@ -299,9 +339,9 @@ static int dir_cleanup(
 
                         /* FUSE, NFS mounts, SELinux might return EACCES */
                         if (errno == EACCES)
-                                log_debug("stat(%s/%s) failed: %m", p, dent->d_name);
+                                log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name);
                         else
-                                log_error("stat(%s/%s) failed: %m", p, dent->d_name);
+                                log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name);
                         r = -errno;
                         continue;
                 }
@@ -349,7 +389,7 @@ static int dir_cleanup(
                                 sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME);
                                 if (!sub_dir) {
                                         if (errno != ENOENT) {
-                                                log_error("opendir(%s/%s) failed: %m", p, dent->d_name);
+                                                log_error_errno(errno, "opendir(%s/%s) failed: %m", p, dent->d_name);
                                                 r = -errno;
                                         }
 
@@ -382,7 +422,7 @@ static int dir_cleanup(
 
                                 if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
                                         if (errno != ENOENT && errno != ENOTEMPTY) {
-                                                log_error("rmdir(%s): %m", sub_path);
+                                                log_error_errno(errno, "rmdir(%s): %m", sub_path);
                                                 r = -errno;
                                         }
                                 }
@@ -430,7 +470,7 @@ static int dir_cleanup(
 
                         if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
                                 if (errno != ENOENT) {
-                                        log_error("unlink(%s): %m", sub_path);
+                                        log_error_errno(errno, "unlink(%s): %m", sub_path);
                                         r = -errno;
                                 }
                         }
@@ -446,13 +486,13 @@ finish:
                 times[1] = ds->st_mtim;
 
                 if (futimens(dirfd(d), times) < 0)
-                        log_error("utimensat(%s): %m", p);
+                        log_error_errno(errno, "utimensat(%s): %m", p);
         }
 
         return r;
 }
 
-static int item_set_perms(Item *i, const char *path) {
+static int path_set_perms(Item *i, const char *path) {
         struct stat st;
         bool st_valid;
 
@@ -477,24 +517,162 @@ static int item_set_perms(Item *i, const char *path) {
                 }
 
                 if (!st_valid || m != (st.st_mode & 07777)) {
-                        if (chmod(path, m) < 0) {
-                                log_error("chmod(%s) failed: %m", path);
-                                return -errno;
-                        }
+                        if (chmod(path, m) < 0)
+                                return log_error_errno(errno, "chmod(%s) failed: %m", path);
                 }
         }
 
         if ((!st_valid || (i->uid != st.st_uid || i->gid != st.st_gid)) &&
             (i->uid_set || i->gid_set))
                 if (chown(path,
-                          i->uid_set ? i->uid : (uid_t) -1,
-                          i->gid_set ? i->gid : (gid_t) -1) < 0) {
+                          i->uid_set ? i->uid : UID_INVALID,
+                          i->gid_set ? i->gid : GID_INVALID) < 0)
+
+                        return log_error_errno(errno, "chown(%s) failed: %m", path);
+
+        return label_fix(path, false, false);
+}
+
+static int get_xattrs_from_arg(Item *i) {
+        char *xattr;
+        const char *p;
+        int r;
+
+        assert(i);
+        assert(i->argument);
+
+        p = i->argument;
 
-                        log_error("chown(%s) failed: %m", path);
+        while ((r = unquote_first_word(&p, &xattr, false)) > 0) {
+                _cleanup_free_ char *tmp = NULL, *name = NULL,
+                        *value = NULL, *value2 = NULL, *_xattr = xattr;
+
+                r = split_pair(xattr, "=", &name, &value);
+                if (r < 0) {
+                        log_warning("Illegal xattr found: \"%s\" - ignoring.", xattr);
+                        continue;
+                }
+
+                if (strempty(name) || strempty(value)) {
+                        log_warning("Malformed xattr found: \"%s\" - ignoring.", xattr);
+                        continue;
+                }
+
+                tmp = unquote(value, "\"");
+                if (!tmp)
+                        return log_oom();
+
+                value2 = cunescape(tmp);
+                if (!value2)
+                        return log_oom();
+
+                if (strv_push_pair(&i->xattrs, name, value2) < 0)
+                        return log_oom();
+                name = value2 = NULL;
+        }
+
+        return r;
+}
+
+static int path_set_xattrs(Item *i, const char *path) {
+        char **name, **value;
+
+        assert(i);
+        assert(path);
+
+        STRV_FOREACH_PAIR(name, value, i->xattrs) {
+                int n;
+
+                n = strlen(*value);
+                if (lsetxattr(path, *name, *value, n, 0) < 0) {
+                        log_error("Setting extended attribute %s=%s on %s failed: %m",
+                                  *name, *value, path);
                         return -errno;
                 }
+        }
+        return 0;
+}
 
-        return label_fix(path, false, false);
+static int get_acls_from_arg(Item *item) {
+#ifdef HAVE_ACL
+        int r;
+        _cleanup_(acl_freep) acl_t a = NULL, d = NULL;
+
+        assert(item);
+
+        /* If force (= modify) is set, we will not modify the acl
+         * afterwards, so the mask can be added now if necessary. */
+        r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force);
+        if (r < 0)
+                log_warning_errno(errno, "Failed to parse ACL \"%s\": %m. Ignoring",
+                                  item->argument);
+#else
+        log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring");
+#endif
+
+        return 0;
+}
+
+static int path_set_acl(const char *path, acl_type_t type, acl_t acl, bool modify) {
+        _cleanup_(acl_freep) acl_t dup = NULL;
+        int r;
+
+        if (modify) {
+                r = acls_for_file(path, type, acl, &dup);
+                if (r < 0)
+                        return r;
+
+                r = calc_acl_mask_if_needed(&dup);
+                if (r < 0)
+                        return r;
+        } else {
+                dup = acl_dup(acl);
+                if (!dup)
+                        return -errno;
+
+                /* the mask was already added earlier if needed */
+        }
+
+        r = add_base_acls_if_needed(&dup, path);
+        if (r < 0)
+                return r;
+
+        r = acl_set_file(path, type, dup);
+        if (r < 0) {
+                _cleanup_(acl_free_charpp) char *t;
+
+                r = -errno;
+                t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE);
+                log_error_errno(r,
+                                "Setting %s ACL \"%s\" on %s failed: %m",
+                                type == ACL_TYPE_ACCESS ? "access" : "default",
+                                strna(t), path);
+        }
+
+        return r;
+}
+
+static int path_set_acls(Item *item, const char *path) {
+#ifdef HAVE_ACL
+        int r;
+
+        assert(item);
+        assert(path);
+
+        if (item->acl_access) {
+                r = path_set_acl(path, ACL_TYPE_ACCESS, item->acl_access, item->force);
+                if (r < 0)
+                        return r;
+        }
+
+        if (item->acl_default) {
+                r = path_set_acl(path, ACL_TYPE_DEFAULT, item->acl_default, item->force);
+                if (r < 0)
+                        return r;
+        }
+#endif
+
+        return 0;
 }
 
 static int write_one_file(Item *i, const char *path) {
@@ -509,16 +687,16 @@ static int write_one_file(Item *i, const char *path) {
                 i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0;
 
         RUN_WITH_UMASK(0000) {
-                mac_selinux_context_set(path, S_IFREG);
+                mac_selinux_create_file_prepare(path, S_IFREG);
                 fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode);
-                mac_selinux_context_clear();
+                mac_selinux_create_file_clear();
         }
 
         if (fd < 0) {
                 if (i->type == WRITE_FILE && errno == ENOENT)
                         return 0;
 
-                log_error("Failed to create file %s: %m", path);
+                log_error_errno(errno, "Failed to create file %s: %m", path);
                 return -errno;
         }
 
@@ -542,24 +720,24 @@ static int write_one_file(Item *i, const char *path) {
 
         fd = safe_close(fd);
 
-        if (stat(path, &st) < 0) {
-                log_error("stat(%s) failed: %m", path);
-                return -errno;
-        }
+        if (stat(path, &st) < 0)
+                return log_error_errno(errno, "stat(%s) failed: %m", path);
 
         if (!S_ISREG(st.st_mode)) {
                 log_error("%s is not a file.", path);
                 return -EEXIST;
         }
 
-        r = item_set_perms(i, path);
+        r = path_set_perms(i, path);
         if (r < 0)
                 return r;
 
         return 0;
 }
 
-static int item_set_perms_children(Item *i, const char *path) {
+typedef int (*action_t)(Item *, const char *);
+
+static int item_do_children(Item *i, const char *path, action_t action) {
         _cleanup_closedir_ DIR *d;
         int r = 0;
 
@@ -594,12 +772,12 @@ static int item_set_perms_children(Item *i, const char *path) {
                 if (!p)
                         return -ENOMEM;
 
-                q = item_set_perms(i, p);
+                q = action(i, p);
                 if (q < 0 && q != -ENOENT && r == 0)
                         r = q;
 
                 if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) {
-                        q = item_set_perms_children(i, p);
+                        q = item_do_children(i, p, action);
                         if (q < 0 && r == 0)
                                 r = q;
                 }
@@ -608,42 +786,26 @@ static int item_set_perms_children(Item *i, const char *path) {
         return r;
 }
 
-static int item_set_perms_recursive(Item *i, const char *path) {
-        int r, q;
-
-        assert(i);
-        assert(path);
-
-        r = item_set_perms(i, path);
-        if (r < 0)
-                return r;
-
-        q = item_set_perms_children(i, path);
-        if (q < 0 && r == 0)
-                r = q;
-
-        return r;
-}
-
-static int glob_item(Item *i, int (*action)(Item *, const char *)) {
+static int glob_item(Item *i, action_t action, bool recursive) {
         _cleanup_globfree_ glob_t g = {};
         int r = 0, k;
         char **fn;
 
         errno = 0;
         k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
-        if (k != 0 && k != GLOB_NOMATCH) {
-                if (errno == 0)
-                        errno = EIO;
-
-                log_error("glob(%s) failed: %m", i->path);
-                return -errno;
-        }
+        if (k != 0 && k != GLOB_NOMATCH)
+                return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path);
 
         STRV_FOREACH(fn, g.gl_pathv) {
                 k = action(i, *fn);
                 if (k < 0 && r == 0)
                         r = k;
+
+                if (recursive) {
+                        k = item_do_children(i, *fn, action);
+                        if (k < 0 && r == 0)
+                                r = k;
+                }
         }
 
         return r;
@@ -675,20 +837,14 @@ static int create_item(Item *i) {
                 if (r < 0) {
                         struct stat a, b;
 
-                        if (r != -EEXIST) {
-                                log_error("Failed to copy files to %s: %s", i->path, strerror(-r));
-                                return -r;
-                        }
+                        if (r != -EEXIST)
+                                return log_error_errno(r, "Failed to copy files to %s: %m", i->path);
 
-                        if (stat(i->argument, &a) < 0) {
-                                log_error("stat(%s) failed: %m", i->argument);
-                                return -errno;
-                        }
+                        if (stat(i->argument, &a) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->argument);
 
-                        if (stat(i->path, &b) < 0) {
-                                log_error("stat(%s) failed: %m", i->path);
-                                return -errno;
-                        }
+                        if (stat(i->path, &b) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
                         if ((a.st_mode ^ b.st_mode) & S_IFMT) {
                                 log_debug("Can't copy to %s, file exists already and is of different type", i->path);
@@ -696,37 +852,43 @@ static int create_item(Item *i) {
                         }
                 }
 
-                r = item_set_perms(i, i->path);
+                r = path_set_perms(i, i->path);
                 if (r < 0)
                         return r;
 
                 break;
 
         case WRITE_FILE:
-                r = glob_item(i, write_one_file);
+                r = glob_item(i, write_one_file, false);
                 if (r < 0)
                         return r;
 
                 break;
 
-        case TRUNCATE_DIRECTORY:
         case CREATE_DIRECTORY:
+        case TRUNCATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
 
-                RUN_WITH_UMASK(0000) {
+                RUN_WITH_UMASK(0000)
                         mkdir_parents_label(i->path, 0755);
-                        r = mkdir_label(i->path, i->mode);
+
+                if (i->type == CREATE_SUBVOLUME) {
+                        RUN_WITH_UMASK((~i->mode) & 0777)
+                                r = btrfs_subvol_make(i->path);
+                } else
+                        r = 0;
+
+                if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) {
+                        RUN_WITH_UMASK(0000)
+                                r = mkdir_label(i->path, i->mode);
                 }
 
                 if (r < 0) {
-                        if (r != -EEXIST) {
-                                log_error("Failed to create directory %s: %s", i->path, strerror(-r));
-                                return r;
-                        }
+                        if (r != -EEXIST)
+                                return log_error_errno(r, "Failed to create directory or subvolume %s: %m", i->path);
 
-                        if (stat(i->path, &st) < 0) {
-                                log_error("stat(%s) failed: %m", i->path);
-                                return -errno;
-                        }
+                        if (stat(i->path, &st) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
                         if (!S_ISDIR(st.st_mode)) {
                                 log_debug("%s already exists and is not a directory.", i->path);
@@ -734,7 +896,7 @@ static int create_item(Item *i) {
                         }
                 }
 
-                r = item_set_perms(i, i->path);
+                r = path_set_perms(i, i->path);
                 if (r < 0)
                         return r;
 
@@ -743,36 +905,30 @@ static int create_item(Item *i) {
         case CREATE_FIFO:
 
                 RUN_WITH_UMASK(0000) {
-                        mac_selinux_context_set(i->path, S_IFIFO);
+                        mac_selinux_create_file_prepare(i->path, S_IFIFO);
                         r = mkfifo(i->path, i->mode);
-                        mac_selinux_context_clear();
+                        mac_selinux_create_file_clear();
                 }
 
                 if (r < 0) {
-                        if (errno != EEXIST) {
-                                log_error("Failed to create fifo %s: %m", i->path);
-                                return -errno;
-                        }
+                        if (errno != EEXIST)
+                                return log_error_errno(errno, "Failed to create fifo %s: %m", i->path);
 
-                        if (stat(i->path, &st) < 0) {
-                                log_error("stat(%s) failed: %m", i->path);
-                                return -errno;
-                        }
+                        if (stat(i->path, &st) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
                         if (!S_ISFIFO(st.st_mode)) {
 
                                 if (i->force) {
 
                                         RUN_WITH_UMASK(0000) {
-                                                mac_selinux_context_set(i->path, S_IFIFO);
+                                                mac_selinux_create_file_prepare(i->path, S_IFIFO);
                                                 r = mkfifo_atomic(i->path, i->mode);
-                                                mac_selinux_context_clear();
+                                                mac_selinux_create_file_clear();
                                         }
 
-                                        if (r < 0) {
-                                                log_error("Failed to create fifo %s: %s", i->path, strerror(-r));
-                                                return r;
-                                        }
+                                        if (r < 0)
+                                                return log_error_errno(r, "Failed to create fifo %s: %m", i->path);
                                 } else {
                                         log_debug("%s is not a fifo.", i->path);
                                         return 0;
@@ -780,7 +936,7 @@ static int create_item(Item *i) {
                         }
                 }
 
-                r = item_set_perms(i, i->path);
+                r = path_set_perms(i, i->path);
                 if (r < 0)
                         return r;
 
@@ -788,30 +944,26 @@ static int create_item(Item *i) {
 
         case CREATE_SYMLINK:
 
-                mac_selinux_context_set(i->path, S_IFLNK);
+                mac_selinux_create_file_prepare(i->path, S_IFLNK);
                 r = symlink(i->argument, i->path);
-                mac_selinux_context_clear();
+                mac_selinux_create_file_clear();
 
                 if (r < 0) {
                         _cleanup_free_ char *x = NULL;
 
-                        if (errno != EEXIST) {
-                                log_error("symlink(%s, %s) failed: %m", i->argument, i->path);
-                                return -errno;
-                        }
+                        if (errno != EEXIST)
+                                return log_error_errno(errno, "symlink(%s, %s) failed: %m", i->argument, i->path);
 
                         r = readlink_malloc(i->path, &x);
                         if (r < 0 || !streq(i->argument, x)) {
 
                                 if (i->force) {
-                                        mac_selinux_context_set(i->path, S_IFLNK);
+                                        mac_selinux_create_file_prepare(i->path, S_IFLNK);
                                         r = symlink_atomic(i->argument, i->path);
-                                        mac_selinux_context_clear();
+                                        mac_selinux_create_file_clear();
 
-                                        if (r < 0) {
-                                                log_error("symlink(%s, %s) failed: %s", i->argument, i->path, strerror(-r));
-                                                return r;
-                                        }
+                                        if (r < 0)
+                                                return log_error_errno(r, "symlink(%s, %s) failed: %m", i->argument, i->path);
                                 } else {
                                         log_debug("%s is not a symlink or does not point to the correct path.", i->path);
                                         return 0;
@@ -838,9 +990,9 @@ static int create_item(Item *i) {
                 file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR;
 
                 RUN_WITH_UMASK(0000) {
-                        mac_selinux_context_set(i->path, file_type);
+                        mac_selinux_create_file_prepare(i->path, file_type);
                         r = mknod(i->path, i->mode | file_type, i->major_minor);
-                        mac_selinux_context_clear();
+                        mac_selinux_create_file_clear();
                 }
 
                 if (r < 0) {
@@ -850,30 +1002,24 @@ static int create_item(Item *i) {
                                 return 0;
                         }
 
-                        if (errno != EEXIST) {
-                                log_error("Failed to create device node %s: %m", i->path);
-                                return -errno;
-                        }
+                        if (errno != EEXIST)
+                                return log_error_errno(errno, "Failed to create device node %s: %m", i->path);
 
-                        if (stat(i->path, &st) < 0) {
-                                log_error("stat(%s) failed: %m", i->path);
-                                return -errno;
-                        }
+                        if (stat(i->path, &st) < 0)
+                                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
                         if ((st.st_mode & S_IFMT) != file_type) {
 
                                 if (i->force) {
 
                                         RUN_WITH_UMASK(0000) {
-                                                mac_selinux_context_set(i->path, file_type);
+                                                mac_selinux_create_file_prepare(i->path, file_type);
                                                 r = mknod_atomic(i->path, i->mode | file_type, i->major_minor);
-                                                mac_selinux_context_clear();
+                                                mac_selinux_create_file_clear();
                                         }
 
-                                        if (r < 0) {
-                                                log_error("Failed to create device node %s: %s", i->path, strerror(-r));
-                                                return r;
-                                        }
+                                        if (r < 0)
+                                                return log_error_errno(r, "Failed to create device node %s: %m", i->path);
                                 } else {
                                         log_debug("%s is not a device node.", i->path);
                                         return 0;
@@ -881,7 +1027,7 @@ static int create_item(Item *i) {
                         }
                 }
 
-                r = item_set_perms(i, i->path);
+                r = path_set_perms(i, i->path);
                 if (r < 0)
                         return r;
 
@@ -890,18 +1036,39 @@ static int create_item(Item *i) {
 
         case ADJUST_MODE:
         case RELABEL_PATH:
-
-                r = glob_item(i, item_set_perms);
+                r = glob_item(i, path_set_perms, false);
                 if (r < 0)
                         return r;
                 break;
 
         case RECURSIVE_RELABEL_PATH:
+                r = glob_item(i, path_set_perms, true);
+                if (r < 0)
+                        return r;
+                break;
+
+        case SET_XATTR:
+                r = glob_item(i, path_set_xattrs, false);
+                if (r < 0)
+                        return r;
+                break;
 
-                r = glob_item(i, item_set_perms_recursive);
+        case RECURSIVE_SET_XATTR:
+                r = glob_item(i, path_set_xattrs, true);
                 if (r < 0)
                         return r;
+                break;
+
+        case SET_ACL:
+                r = glob_item(i, path_set_acls, false);
+                if (r < 0)
+                        return r;
+                break;
 
+        case RECURSIVE_SET_ACL:
+                r = glob_item(i, path_set_acls, true);
+                if (r < 0)
+                        return r;
                 break;
         }
 
@@ -920,6 +1087,7 @@ static int remove_item_instance(Item *i, const char *instance) {
         case CREATE_FILE:
         case TRUNCATE_FILE:
         case CREATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
         case CREATE_FIFO:
         case CREATE_SYMLINK:
         case CREATE_BLOCK_DEVICE:
@@ -931,13 +1099,15 @@ static int remove_item_instance(Item *i, const char *instance) {
         case RECURSIVE_RELABEL_PATH:
         case WRITE_FILE:
         case COPY_FILES:
+        case SET_XATTR:
+        case RECURSIVE_SET_XATTR:
+        case SET_ACL:
+        case RECURSIVE_SET_ACL:
                 break;
 
         case REMOVE_PATH:
-                if (remove(instance) < 0 && errno != ENOENT) {
-                        log_error("remove(%s): %m", instance);
-                        return -errno;
-                }
+                if (remove(instance) < 0 && errno != ENOENT)
+                        return log_error_errno(errno, "rm(%s): %m", instance);
 
                 break;
 
@@ -946,10 +1116,8 @@ static int remove_item_instance(Item *i, const char *instance) {
                 /* FIXME: we probably should use dir_cleanup() here
                  * instead of rm_rf() so that 'x' is honoured. */
                 r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
-                if (r < 0 && r != -ENOENT) {
-                        log_error("rm_rf(%s): %s", instance, strerror(-r));
-                        return r;
-                }
+                if (r < 0 && r != -ENOENT)
+                        return log_error_errno(r, "rm_rf(%s): %m", instance);
 
                 break;
         }
@@ -967,6 +1135,7 @@ static int remove_item(Item *i) {
         case CREATE_FILE:
         case TRUNCATE_FILE:
         case CREATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
         case CREATE_FIFO:
         case CREATE_SYMLINK:
         case CREATE_CHAR_DEVICE:
@@ -978,12 +1147,16 @@ static int remove_item(Item *i) {
         case RECURSIVE_RELABEL_PATH:
         case WRITE_FILE:
         case COPY_FILES:
+        case SET_XATTR:
+        case RECURSIVE_SET_XATTR:
+        case SET_ACL:
+        case RECURSIVE_SET_ACL:
                 break;
 
         case REMOVE_PATH:
         case TRUNCATE_DIRECTORY:
         case RECURSIVE_REMOVE_PATH:
-                r = glob_item(i, remove_item_instance);
+                r = glob_item(i, remove_item_instance, false);
                 break;
         }
 
@@ -1013,24 +1186,20 @@ static int clean_item_instance(Item *i, const char* instance) {
                 if (errno == ENOENT || errno == ENOTDIR)
                         return 0;
 
-                log_error("Failed to open directory %s: %m", i->path);
+                log_error_errno(errno, "Failed to open directory %s: %m", i->path);
                 return -errno;
         }
 
-        if (fstat(dirfd(d), &s) < 0) {
-                log_error("stat(%s) failed: %m", i->path);
-                return -errno;
-        }
+        if (fstat(dirfd(d), &s) < 0)
+                return log_error_errno(errno, "stat(%s) failed: %m", i->path);
 
         if (!S_ISDIR(s.st_mode)) {
                 log_error("%s is not a directory.", i->path);
                 return -ENOTDIR;
         }
 
-        if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) {
-                log_error("stat(%s/..) failed: %m", i->path);
-                return -errno;
-        }
+        if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0)
+                return log_error_errno(errno, "stat(%s/..) failed: %m", i->path);
 
         mountpoint = s.st_dev != ps.st_dev ||
                      (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino);
@@ -1047,13 +1216,14 @@ static int clean_item(Item *i) {
 
         switch (i->type) {
         case CREATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
         case TRUNCATE_DIRECTORY:
         case IGNORE_PATH:
         case COPY_FILES:
                 clean_item_instance(i, i->path);
                 break;
         case IGNORE_DIRECTORY_PATH:
-                r = glob_item(i, clean_item_instance);
+                r = glob_item(i, clean_item_instance, false);
                 break;
         default:
                 break;
@@ -1062,8 +1232,10 @@ static int clean_item(Item *i) {
         return r;
 }
 
+static int process_item_array(ItemArray *array);
+
 static int process_item(Item *i) {
-        int r, q, p;
+        int r, q, p, t = 0;
         _cleanup_free_ char *prefix = NULL;
 
         assert(i);
@@ -1078,76 +1250,93 @@ static int process_item(Item *i) {
                 return log_oom();
 
         PATH_FOREACH_PREFIX(prefix, i->path) {
-                Item *j;
+                ItemArray *j;
 
                 j = hashmap_get(items, prefix);
-                if (j)
-                        process_item(j);
+                if (j) {
+                        int s;
+
+                        s = process_item_array(j);
+                        if (s < 0 && t == 0)
+                                t = s;
+                }
         }
 
         r = arg_create ? create_item(i) : 0;
         q = arg_remove ? remove_item(i) : 0;
         p = arg_clean ? clean_item(i) : 0;
 
-        if (r < 0)
-                return r;
+        return t < 0 ? t :
+                r < 0 ? r :
+                q < 0 ? q :
+                p;
+}
 
-        if (q < 0)
-                return q;
+static int process_item_array(ItemArray *array) {
+        unsigned n;
+        int r = 0, k;
 
-        return p;
-}
+        assert(array);
 
-static void item_free(Item *i) {
+        for (n = 0; n < array->count; n++) {
+                k = process_item(array->items + n);
+                if (k < 0 && r == 0)
+                        r = k;
+        }
 
-        if (!i)
-                return;
+        return r;
+}
 
+static void item_free_contents(Item *i) {
+        assert(i);
         free(i->path);
         free(i->argument);
-        free(i);
+        strv_free(i->xattrs);
+
+#ifdef HAVE_ACL
+        acl_free(i->acl_access);
+        acl_free(i->acl_default);
+#endif
 }
 
-DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free);
+static void item_array_free(ItemArray *a) {
+        unsigned n;
+
+        if (!a)
+                return;
 
-static bool item_equal(Item *a, Item *b) {
+        for (n = 0; n < a->count; n++)
+                item_free_contents(a->items + n);
+        free(a->items);
+        free(a);
+}
+
+static bool item_compatible(Item *a, Item *b) {
         assert(a);
         assert(b);
+        assert(streq(a->path, b->path));
 
-        if (!streq_ptr(a->path, b->path))
-                return false;
+        if (takes_ownership(a->type) && takes_ownership(b->type))
+                /* check if the items are the same */
+                return  streq_ptr(a->argument, b->argument) &&
 
-        if (a->type != b->type)
-                return false;
+                        a->uid_set == b->uid_set &&
+                        a->uid == b->uid &&
 
-        if (a->uid_set != b->uid_set ||
-            (a->uid_set && a->uid != b->uid))
-            return false;
+                        a->gid_set == b->gid_set &&
+                        a->gid == b->gid &&
 
-        if (a->gid_set != b->gid_set ||
-            (a->gid_set && a->gid != b->gid))
-            return false;
+                        a->mode_set == b->mode_set &&
+                        a->mode == b->mode &&
 
-        if (a->mode_set != b->mode_set ||
-            (a->mode_set && a->mode != b->mode))
-            return false;
+                        a->age_set == b->age_set &&
+                        a->age == b->age &&
 
-        if (a->age_set != b->age_set ||
-            (a->age_set && a->age != b->age))
-            return false;
+                        a->mask_perms == b->mask_perms &&
 
-        if ((a->type == CREATE_FILE ||
-             a->type == TRUNCATE_FILE ||
-             a->type == WRITE_FILE ||
-             a->type == CREATE_SYMLINK ||
-             a->type == COPY_FILES) &&
-            !streq_ptr(a->argument, b->argument))
-                return false;
+                        a->keep_first_level == b->keep_first_level &&
 
-        if ((a->type == CREATE_CHAR_DEVICE ||
-             a->type == CREATE_BLOCK_DEVICE) &&
-            a->major_minor != b->major_minor)
-                return false;
+                        a->major_minor == b->major_minor;
 
         return true;
 }
@@ -1179,11 +1368,11 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
         };
 
         _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
-        _cleanup_(item_freep) Item *i = NULL;
-        Item *existing;
-        char type;
+        _cleanup_(item_free_contents) Item i = {};
+        ItemArray *existing;
         Hashmap *h;
-        int r, n = -1;
+        int r, c = -1, pos;
+        bool force = false, boot = false;
 
         assert(fname);
         assert(line >= 1);
@@ -1197,7 +1386,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
                    &user,
                    &group,
                    &age,
-                   &n);
+                   &c);
         if (r < 2) {
                 log_error("[%s:%u] Syntax error.", fname, line);
                 return -EIO;
@@ -1208,42 +1397,45 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
                 return -EINVAL;
         }
 
-        if (strlen(action) > 1 && !in_charset(action+1, "!+")) {
-                log_error("[%s:%u] Unknown modifiers in command '%s'", fname, line, action);
-                return -EINVAL;
+        for (pos = 1; action[pos]; pos++) {
+                if (action[pos] == '!' && !boot)
+                        boot = true;
+                else if (action[pos] == '+' && !force)
+                        force = true;
+                else {
+                        log_error("[%s:%u] Unknown modifiers in command '%s'",
+                                  fname, line, action);
+                        return -EINVAL;
+                }
         }
 
-        if (strchr(action+1, '!') && !arg_boot)
+        if (boot && !arg_boot)
                 return 0;
 
-        type = action[0];
-
-        i = new0(Item, 1);
-        if (!i)
-                return log_oom();
-
-        i->force = !!strchr(action+1, '+');
+        i.type = action[0];
+        i.force = force;
 
-        r = specifier_printf(path, specifier_table, NULL, &i->path);
+        r = specifier_printf(path, specifier_table, NULL, &i.path);
         if (r < 0) {
                 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path);
                 return r;
         }
 
-        if (n >= 0)  {
-                n += strspn(buffer+n, WHITESPACE);
-                if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) {
-                        i->argument = unquote(buffer+n, "\"");
-                        if (!i->argument)
+        if (c >= 0)  {
+                c += strspn(buffer+c, WHITESPACE);
+                if (buffer[c] != 0 && (buffer[c] != '-' || buffer[c+1] != 0)) {
+                        i.argument = unquote(buffer+c, "\"");
+                        if (!i.argument)
                                 return log_oom();
                 }
         }
 
-        switch (type) {
+        switch (i.type) {
 
         case CREATE_FILE:
         case TRUNCATE_FILE:
         case CREATE_DIRECTORY:
+        case CREATE_SUBVOLUME:
         case TRUNCATE_DIRECTORY:
         case CREATE_FIFO:
         case IGNORE_PATH:
@@ -1256,103 +1448,121 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
                 break;
 
         case CREATE_SYMLINK:
-                if (!i->argument) {
-                        i->argument = strappend("/usr/share/factory", i->path);
-                        if (!i->argument)
+                if (!i.argument) {
+                        i.argument = strappend("/usr/share/factory/", i.path);
+                        if (!i.argument)
                                 return log_oom();
                 }
                 break;
 
         case WRITE_FILE:
-                if (!i->argument) {
+                if (!i.argument) {
                         log_error("[%s:%u] Write file requires argument.", fname, line);
                         return -EBADMSG;
                 }
                 break;
 
         case COPY_FILES:
-                if (!i->argument) {
-                        i->argument = strappend("/usr/share/factory", i->path);
-                        if (!i->argument)
+                if (!i.argument) {
+                        i.argument = strappend("/usr/share/factory/", i.path);
+                        if (!i.argument)
                                 return log_oom();
-                }
-
-                if (!path_is_absolute(i->argument)) {
+                } else if (!path_is_absolute(i.argument)) {
                         log_error("[%s:%u] Source path is not absolute.", fname, line);
                         return -EBADMSG;
                 }
 
-                path_kill_slashes(i->argument);
+                path_kill_slashes(i.argument);
                 break;
 
         case CREATE_CHAR_DEVICE:
         case CREATE_BLOCK_DEVICE: {
                 unsigned major, minor;
 
-                if (!i->argument) {
+                if (!i.argument) {
                         log_error("[%s:%u] Device file requires argument.", fname, line);
                         return -EBADMSG;
                 }
 
-                if (sscanf(i->argument, "%u:%u", &major, &minor) != 2) {
-                        log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i->argument);
+                if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) {
+                        log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument);
                         return -EBADMSG;
                 }
 
-                i->major_minor = makedev(major, minor);
+                i.major_minor = makedev(major, minor);
                 break;
         }
 
+        case SET_XATTR:
+        case RECURSIVE_SET_XATTR:
+                if (!i.argument) {
+                        log_error("[%s:%u] Set extended attribute requires argument.", fname, line);
+                        return -EBADMSG;
+                }
+                r = get_xattrs_from_arg(&i);
+                if (r < 0)
+                        return r;
+                break;
+
+        case SET_ACL:
+        case RECURSIVE_SET_ACL:
+                if (!i.argument) {
+                        log_error("[%s:%u] Set ACLs requires argument.", fname, line);
+                        return -EBADMSG;
+                }
+                r = get_acls_from_arg(&i);
+                if (r < 0)
+                        return r;
+                break;
+
         default:
-                log_error("[%s:%u] Unknown command type '%c'.", fname, line, type);
+                log_error("[%s:%u] Unknown command type '%c'.", fname, line, i.type);
                 return -EBADMSG;
         }
 
-        i->type = type;
-
-        if (!path_is_absolute(i->path)) {
-                log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path);
+        if (!path_is_absolute(i.path)) {
+                log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path);
                 return -EBADMSG;
         }
 
-        path_kill_slashes(i->path);
+        path_kill_slashes(i.path);
 
-        if (!should_include_path(i->path))
+        if (!should_include_path(i.path))
                 return 0;
 
         if (arg_root) {
                 char *p;
 
-                p = strappend(arg_root, i->path);
+                p = strappend(arg_root, i.path);
                 if (!p)
                         return log_oom();
 
-                free(i->path);
-                i->path = p;
+                free(i.path);
+                i.path = p;
         }
 
         if (user && !streq(user, "-")) {
                 const char *u = user;
 
-                r = get_user_creds(&u, &i->uid, NULL, NULL, NULL);
+                r = get_user_creds(&u, &i.uid, NULL, NULL, NULL);
                 if (r < 0) {
                         log_error("[%s:%u] Unknown user '%s'.", fname, line, user);
                         return r;
                 }
 
-                i->uid_set = true;
+                i.uid_set = true;
         }
 
         if (group && !streq(group, "-")) {
                 const char *g = group;
 
-                r = get_group_creds(&g, &i->gid);
+                r = get_group_creds(&g, &i.gid);
                 if (r < 0) {
                         log_error("[%s:%u] Unknown group '%s'.", fname, line, group);
                         return r;
                 }
 
-                i->gid_set = true;
+                i.gid_set = true;
         }
 
         if (mode && !streq(mode, "-")) {
@@ -1360,7 +1570,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
                 unsigned m;
 
                 if (*mm == '~') {
-                        i->mask_perms = true;
+                        i.mask_perms = true;
                         mm++;
                 }
 
@@ -1369,49 +1579,51 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
                         return -ENOENT;
                 }
 
-                i->mode = m;
-                i->mode_set = true;
+                i.mode = m;
+                i.mode_set = true;
         } else
-                i->mode =
-                        i->type == CREATE_DIRECTORY ||
-                        i->type == TRUNCATE_DIRECTORY ? 0755 : 0644;
+                i.mode = IN_SET(i.type, CREATE_DIRECTORY, CREATE_SUBVOLUME, TRUNCATE_DIRECTORY)
+                        ? 0755 : 0644;
 
         if (age && !streq(age, "-")) {
                 const char *a = age;
 
                 if (*a == '~') {
-                        i->keep_first_level = true;
+                        i.keep_first_level = true;
                         a++;
                 }
 
-                if (parse_sec(a, &i->age) < 0) {
+                if (parse_sec(a, &i.age) < 0) {
                         log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
                         return -EBADMSG;
                 }
 
-                i->age_set = true;
+                i.age_set = true;
         }
 
-        h = needs_glob(i->type) ? globs : items;
+        h = needs_glob(i.type) ? globs : items;
 
-        existing = hashmap_get(h, i->path);
+        existing = hashmap_get(h, i.path);
         if (existing) {
+                unsigned n;
 
-                /* Two identical items are fine */
-                if (!item_equal(existing, i))
-                        log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path);
-
-                return 0;
-        }
-
-        r = hashmap_put(h, i->path, i);
-        if (r < 0) {
-                log_error("Failed to insert item %s: %s", i->path, strerror(-r));
-                return r;
+                for (n = 0; n < existing->count; n++) {
+                        if (!item_compatible(existing->items + n, &i))
+                                log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.",
+                                            fname, line, i.path);
+                }
+        } else {
+                existing = new0(ItemArray, 1);
+                r = hashmap_put(h, i.path, existing);
+                if (r < 0)
+                        return log_oom();
         }
 
-        i = NULL; /* avoid cleanup */
+        if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1))
+                return log_oom();
 
+        memcpy(existing->items + existing->count++, &i, sizeof(i));
+        zero(i);
         return 0;
 }
 
@@ -1539,8 +1751,7 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
                 if (ignore_enoent && r == -ENOENT)
                         return 0;
 
-                log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r));
-                return r;
+                return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn);
         }
 
         FOREACH_LINE(line, f, break) {
@@ -1567,7 +1778,7 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
                         continue;
 
                 HASHMAP_FOREACH(j, items, iter) {
-                        if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY)
+                        if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY && j->type != CREATE_SUBVOLUME)
                                 continue;
 
                         if (path_equal(j->path, i->path)) {
@@ -1587,7 +1798,7 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
         }
 
         if (ferror(f)) {
-                log_error("Failed to read from file %s: %m", fn);
+                log_error_errno(errno, "Failed to read from file %s: %m", fn);
                 if (r == 0)
                         r = -EIO;
         }
@@ -1597,7 +1808,7 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
 
 int main(int argc, char *argv[]) {
         int r, k;
-        Item *i;
+        ItemArray *a;
         Iterator iterator;
 
         r = parse_argv(argc, argv);
@@ -1637,7 +1848,7 @@ int main(int argc, char *argv[]) {
 
                 r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs);
                 if (r < 0) {
-                        log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
+                        log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m");
                         goto finish;
                 }
 
@@ -1648,18 +1859,24 @@ int main(int argc, char *argv[]) {
                 }
         }
 
-        HASHMAP_FOREACH(i, globs, iterator)
-                process_item(i);
+        HASHMAP_FOREACH(a, globs, iterator) {
+                k = process_item_array(a);
+                if (k < 0 && r == 0)
+                        r = k;
+        }
 
-        HASHMAP_FOREACH(i, items, iterator)
-                process_item(i);
+        HASHMAP_FOREACH(a, items, iterator) {
+                k = process_item_array(a);
+                if (k < 0 && r == 0)
+                        r = k;
+        }
 
 finish:
-        while ((i = hashmap_steal_first(items)))
-                item_free(i);
+        while ((a = hashmap_steal_first(items)))
+                item_array_free(a);
 
-        while ((i = hashmap_steal_first(globs)))
-                item_free(i);
+        while ((a = hashmap_steal_first(globs)))
+                item_array_free(a);
 
         hashmap_free(items);
         hashmap_free(globs);