| /*** |
| This file is part of systemd. |
| |
| Copyright 2010 Lennart Poettering, Kay Sievers |
| Copyright 2015 Zbigniew Jędrzejewski-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 |
| the Free Software Foundation; either version 2.1 of the License, or |
| (at your option) any later version. |
| |
| systemd is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with systemd; If not, see <http://www.gnu.org/licenses/>. |
| ***/ |
| |
| #include <dirent.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <fnmatch.h> |
| #include <getopt.h> |
| #include <glob.h> |
| #include <limits.h> |
| #include <linux/fs.h> |
| #include <stdbool.h> |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/xattr.h> |
| #include <time.h> |
| #include <unistd.h> |
| |
| #include "acl-util.h" |
| #include "alloc-util.h" |
| #include "btrfs-util.h" |
| #include "capability-util.h" |
| #include "chattr-util.h" |
| #include "conf-files.h" |
| #include "copy.h" |
| #include "def.h" |
| #include "escape.h" |
| #include "fd-util.h" |
| #include "fileio.h" |
| #include "formats-util.h" |
| #include "fs-util.h" |
| #include "glob-util.h" |
| #include "io-util.h" |
| #include "label.h" |
| #include "log.h" |
| #include "macro.h" |
| #include "missing.h" |
| #include "mkdir.h" |
| #include "mount-util.h" |
| #include "parse-util.h" |
| #include "path-util.h" |
| #include "rm-rf.h" |
| #include "selinux-util.h" |
| #include "set.h" |
| #include "specifier.h" |
| #include "stat-util.h" |
| #include "stdio-util.h" |
| #include "string-table.h" |
| #include "string-util.h" |
| #include "strv.h" |
| #include "umask-util.h" |
| #include "user-util.h" |
| #include "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 |
| * properly owned directories beneath /tmp, /var/tmp, /run, which are |
| * volatile and hence need to be recreated on bootup. */ |
| |
| typedef enum ItemType { |
| /* These ones take file names */ |
| CREATE_FILE = 'f', |
| TRUNCATE_FILE = 'F', |
| CREATE_DIRECTORY = 'd', |
| TRUNCATE_DIRECTORY = 'D', |
| CREATE_SUBVOLUME = 'v', |
| CREATE_SUBVOLUME_INHERIT_QUOTA = 'q', |
| CREATE_SUBVOLUME_NEW_QUOTA = 'Q', |
| CREATE_FIFO = 'p', |
| CREATE_SYMLINK = 'L', |
| CREATE_CHAR_DEVICE = 'c', |
| CREATE_BLOCK_DEVICE = 'b', |
| COPY_FILES = 'C', |
| |
| /* These ones take globs */ |
| WRITE_FILE = 'w', |
| EMPTY_DIRECTORY = 'e', |
| SET_XATTR = 't', |
| RECURSIVE_SET_XATTR = 'T', |
| SET_ACL = 'a', |
| RECURSIVE_SET_ACL = 'A', |
| SET_ATTRIBUTE = 'h', |
| RECURSIVE_SET_ATTRIBUTE = 'H', |
| IGNORE_PATH = 'x', |
| IGNORE_DIRECTORY_PATH = 'X', |
| REMOVE_PATH = 'r', |
| RECURSIVE_REMOVE_PATH = 'R', |
| RELABEL_PATH = 'z', |
| RECURSIVE_RELABEL_PATH = 'Z', |
| ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ |
| } ItemType; |
| |
| typedef struct Item { |
| ItemType type; |
| |
| 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; |
| usec_t age; |
| |
| dev_t major_minor; |
| unsigned attribute_value; |
| unsigned attribute_mask; |
| |
| bool uid_set:1; |
| bool gid_set:1; |
| bool mode_set:1; |
| bool age_set:1; |
| bool mask_perms:1; |
| bool attribute_set:1; |
| |
| bool keep_first_level:1; |
| |
| bool force:1; |
| |
| 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; |
| static bool arg_boot = false; |
| |
| static char **arg_include_prefixes = NULL; |
| static char **arg_exclude_prefixes = NULL; |
| static char *arg_root = NULL; |
| |
| static const char conf_file_dirs[] = CONF_PATHS_NULSTR("tmpfiles.d"); |
| |
| #define MAX_DEPTH 256 |
| |
| static OrderedHashmap *items = NULL, *globs = NULL; |
| static Set *unix_sockets = NULL; |
| |
| static const Specifier specifier_table[] = { |
| { 'm', specifier_machine_id, NULL }, |
| { 'b', specifier_boot_id, NULL }, |
| { 'H', specifier_host_name, NULL }, |
| { 'v', specifier_kernel_release, NULL }, |
| {} |
| }; |
| |
| static bool needs_glob(ItemType t) { |
| return IN_SET(t, |
| WRITE_FILE, |
| IGNORE_PATH, |
| IGNORE_DIRECTORY_PATH, |
| REMOVE_PATH, |
| RECURSIVE_REMOVE_PATH, |
| EMPTY_DIRECTORY, |
| ADJUST_MODE, |
| RELABEL_PATH, |
| RECURSIVE_RELABEL_PATH, |
| SET_XATTR, |
| RECURSIVE_SET_XATTR, |
| SET_ACL, |
| RECURSIVE_SET_ACL, |
| SET_ATTRIBUTE, |
| RECURSIVE_SET_ATTRIBUTE); |
| } |
| |
| static bool takes_ownership(ItemType t) { |
| return IN_SET(t, |
| CREATE_FILE, |
| TRUNCATE_FILE, |
| CREATE_DIRECTORY, |
| EMPTY_DIRECTORY, |
| TRUNCATE_DIRECTORY, |
| CREATE_SUBVOLUME, |
| CREATE_SUBVOLUME_INHERIT_QUOTA, |
| CREATE_SUBVOLUME_NEW_QUOTA, |
| 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(OrderedHashmap *h, const char *match) { |
| ItemArray *j; |
| Iterator i; |
| |
| ORDERED_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; |
| } |
| |
| static void load_unix_sockets(void) { |
| _cleanup_fclose_ FILE *f = NULL; |
| char line[LINE_MAX]; |
| |
| if (unix_sockets) |
| return; |
| |
| /* We maintain a cache of the sockets we found in |
| * /proc/net/unix to speed things up a little. */ |
| |
| unix_sockets = set_new(&string_hash_ops); |
| if (!unix_sockets) |
| return; |
| |
| f = fopen("/proc/net/unix", "re"); |
| if (!f) |
| return; |
| |
| /* Skip header */ |
| if (!fgets(line, sizeof(line), f)) |
| goto fail; |
| |
| for (;;) { |
| char *p, *s; |
| int k; |
| |
| if (!fgets(line, sizeof(line), f)) |
| break; |
| |
| truncate_nl(line); |
| |
| p = strchr(line, ':'); |
| if (!p) |
| continue; |
| |
| if (strlen(p) < 37) |
| continue; |
| |
| p += 37; |
| p += strspn(p, WHITESPACE); |
| p += strcspn(p, WHITESPACE); /* skip one more word */ |
| p += strspn(p, WHITESPACE); |
| |
| if (*p != '/') |
| continue; |
| |
| s = strdup(p); |
| if (!s) |
| goto fail; |
| |
| path_kill_slashes(s); |
| |
| k = set_consume(unix_sockets, s); |
| if (k < 0 && k != -EEXIST) |
| goto fail; |
| } |
| |
| return; |
| |
| fail: |
| set_free_free(unix_sockets); |
| unix_sockets = NULL; |
| } |
| |
| static bool unix_socket_alive(const char *fn) { |
| assert(fn); |
| |
| load_unix_sockets(); |
| |
| if (unix_sockets) |
| return !!set_get(unix_sockets, (char*) fn); |
| |
| /* We don't know, so assume yes */ |
| return true; |
| } |
| |
| static int dir_is_mount_point(DIR *d, const char *subdir) { |
| |
| union file_handle_union h = FILE_HANDLE_INIT; |
| int mount_id_parent, mount_id; |
| int r_p, r; |
| |
| r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); |
| if (r_p < 0) |
| r_p = -errno; |
| |
| h.handle.handle_bytes = MAX_HANDLE_SZ; |
| r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); |
| if (r < 0) |
| r = -errno; |
| |
| /* got no handle; make no assumptions, return error */ |
| if (r_p < 0 && r < 0) |
| return r_p; |
| |
| /* got both handles; if they differ, it is a mount point */ |
| if (r_p >= 0 && r >= 0) |
| return mount_id_parent != mount_id; |
| |
| /* got only one handle; assume different mount points if one |
| * of both queries was not supported by the filesystem */ |
| if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP) |
| return true; |
| |
| /* return error */ |
| if (r_p < 0) |
| return r_p; |
| return r; |
| } |
| |
| static DIR* xopendirat_nomod(int dirfd, const char *path) { |
| DIR *dir; |
| |
| dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); |
| if (dir) |
| return dir; |
| |
| log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); |
| if (errno != EPERM) |
| return NULL; |
| |
| dir = xopendirat(dirfd, path, O_NOFOLLOW); |
| if (!dir) |
| log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); |
| |
| return dir; |
| } |
| |
| static DIR* opendir_nomod(const char *path) { |
| return xopendirat_nomod(AT_FDCWD, path); |
| } |
| |
| static int dir_cleanup( |
| Item *i, |
| const char *p, |
| DIR *d, |
| const struct stat *ds, |
| usec_t cutoff, |
| dev_t rootdev, |
| bool mountpoint, |
| int maxdepth, |
| bool keep_this_level) { |
| |
| struct dirent *dent; |
| struct timespec times[2]; |
| bool deleted = false; |
| int r = 0; |
| |
| while ((dent = readdir(d))) { |
| struct stat s; |
| usec_t age; |
| _cleanup_free_ char *sub_path = NULL; |
| |
| if (STR_IN_SET(dent->d_name, ".", "..")) |
| continue; |
| |
| if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
| if (errno == ENOENT) |
| continue; |
| |
| /* FUSE, NFS mounts, SELinux might return EACCES */ |
| if (errno == EACCES) |
| log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
| else |
| log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); |
| r = -errno; |
| continue; |
| } |
| |
| /* Stay on the same filesystem */ |
| if (s.st_dev != rootdev) { |
| log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); |
| continue; |
| } |
| |
| /* Try to detect bind mounts of the same filesystem instance; they |
| * do not differ in device major/minors. This type of query is not |
| * supported on all kernels or filesystem types though. */ |
| if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { |
| log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", |
| p, dent->d_name); |
| continue; |
| } |
| |
| /* Do not delete read-only files owned by root */ |
| if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) { |
| log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name); |
| continue; |
| } |
| |
| sub_path = strjoin(p, "/", dent->d_name, NULL); |
| if (!sub_path) { |
| r = log_oom(); |
| goto finish; |
| } |
| |
| /* Is there an item configured for this path? */ |
| if (ordered_hashmap_get(items, sub_path)) { |
| log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); |
| continue; |
| } |
| |
| if (find_glob(globs, sub_path)) { |
| log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); |
| continue; |
| } |
| |
| if (S_ISDIR(s.st_mode)) { |
| |
| if (mountpoint && |
| streq(dent->d_name, "lost+found") && |
| s.st_uid == 0) { |
| log_debug("Ignoring \"%s\".", sub_path); |
| continue; |
| } |
| |
| if (maxdepth <= 0) |
| log_warning("Reached max depth on \"%s\".", sub_path); |
| else { |
| _cleanup_closedir_ DIR *sub_dir; |
| int q; |
| |
| sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); |
| if (!sub_dir) { |
| if (errno != ENOENT) |
| r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); |
| |
| continue; |
| } |
| |
| q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
| if (q < 0) |
| r = q; |
| } |
| |
| /* Note: if you are wondering why we don't |
| * support the sticky bit for excluding |
| * directories from cleaning like we do it for |
| * other file system objects: well, the sticky |
| * bit already has a meaning for directories, |
| * so we don't want to overload that. */ |
| |
| if (keep_this_level) { |
| log_debug("Keeping \"%s\".", sub_path); |
| continue; |
| } |
| |
| /* Ignore ctime, we change it when deleting */ |
| age = timespec_load(&s.st_mtim); |
| if (age >= cutoff) { |
| char a[FORMAT_TIMESTAMP_MAX]; |
| /* Follows spelling in stat(1). */ |
| log_debug("Directory \"%s\": modify time %s is too new.", |
| sub_path, |
| format_timestamp_us(a, sizeof(a), age)); |
| continue; |
| } |
| |
| age = timespec_load(&s.st_atim); |
| if (age >= cutoff) { |
| char a[FORMAT_TIMESTAMP_MAX]; |
| log_debug("Directory \"%s\": access time %s is too new.", |
| sub_path, |
| format_timestamp_us(a, sizeof(a), age)); |
| continue; |
| } |
| |
| log_debug("Removing directory \"%s\".", sub_path); |
| if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) |
| if (errno != ENOENT && errno != ENOTEMPTY) { |
| log_error_errno(errno, "rmdir(%s): %m", sub_path); |
| r = -errno; |
| } |
| |
| } else { |
| /* Skip files for which the sticky bit is |
| * set. These are semantics we define, and are |
| * unknown elsewhere. See XDG_RUNTIME_DIR |
| * specification for details. */ |
| if (s.st_mode & S_ISVTX) { |
| log_debug("Skipping \"%s\": sticky bit set.", sub_path); |
| continue; |
| } |
| |
| if (mountpoint && S_ISREG(s.st_mode)) |
| if (s.st_uid == 0 && STR_IN_SET(dent->d_name, |
| ".journal", |
| "aquota.user", |
| "aquota.group")) { |
| log_debug("Skipping \"%s\".", sub_path); |
| continue; |
| } |
| |
| /* Ignore sockets that are listed in /proc/net/unix */ |
| if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { |
| log_debug("Skipping \"%s\": live socket.", sub_path); |
| continue; |
| } |
| |
| /* Ignore device nodes */ |
| if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { |
| log_debug("Skipping \"%s\": a device.", sub_path); |
| continue; |
| } |
| |
| /* Keep files on this level around if this is |
| * requested */ |
| if (keep_this_level) { |
| log_debug("Keeping \"%s\".", sub_path); |
| continue; |
| } |
| |
| age = timespec_load(&s.st_mtim); |
| if (age >= cutoff) { |
| char a[FORMAT_TIMESTAMP_MAX]; |
| /* Follows spelling in stat(1). */ |
| log_debug("File \"%s\": modify time %s is too new.", |
| sub_path, |
| format_timestamp_us(a, sizeof(a), age)); |
| continue; |
| } |
| |
| age = timespec_load(&s.st_atim); |
| if (age >= cutoff) { |
| char a[FORMAT_TIMESTAMP_MAX]; |
| log_debug("File \"%s\": access time %s is too new.", |
| sub_path, |
| format_timestamp_us(a, sizeof(a), age)); |
| continue; |
| } |
| |
| age = timespec_load(&s.st_ctim); |
| if (age >= cutoff) { |
| char a[FORMAT_TIMESTAMP_MAX]; |
| log_debug("File \"%s\": change time %s is too new.", |
| sub_path, |
| format_timestamp_us(a, sizeof(a), age)); |
| continue; |
| } |
| |
| log_debug("unlink \"%s\"", sub_path); |
| |
| if (unlinkat(dirfd(d), dent->d_name, 0) < 0) |
| if (errno != ENOENT) |
| r = log_error_errno(errno, "unlink(%s): %m", sub_path); |
| |
| deleted = true; |
| } |
| } |
| |
| finish: |
| if (deleted) { |
| usec_t age1, age2; |
| char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; |
| |
| /* Restore original directory timestamps */ |
| times[0] = ds->st_atim; |
| times[1] = ds->st_mtim; |
| |
| age1 = timespec_load(&ds->st_atim); |
| age2 = timespec_load(&ds->st_mtim); |
| log_debug("Restoring access and modification time on \"%s\": %s, %s", |
| p, |
| format_timestamp_us(a, sizeof(a), age1), |
| format_timestamp_us(b, sizeof(b), age2)); |
| if (futimens(dirfd(d), times) < 0) |
| log_error_errno(errno, "utimensat(%s): %m", p); |
| } |
| |
| return r; |
| } |
| |
| static int path_set_perms(Item *i, const char *path) { |
| _cleanup_close_ int fd = -1; |
| struct stat st; |
| |
| assert(i); |
| assert(path); |
| |
| /* We open the file with O_PATH here, to make the operation |
| * somewhat atomic. Also there's unfortunately no fchmodat() |
| * with AT_SYMLINK_NOFOLLOW, hence we emulate it here via |
| * O_PATH. */ |
| |
| fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); |
| if (fd < 0) |
| return log_error_errno(errno, "Adjusting owner and mode for %s failed: %m", path); |
| |
| if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) |
| return log_error_errno(errno, "Failed to fstat() file %s: %m", path); |
| |
| if (S_ISLNK(st.st_mode)) |
| log_debug("Skipping mode an owner fix for symlink %s.", path); |
| else { |
| char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
| xsprintf(fn, "/proc/self/fd/%i", fd); |
| |
| /* not using i->path directly because it may be a glob */ |
| if (i->mode_set) { |
| mode_t m = i->mode; |
| |
| if (i->mask_perms) { |
| if (!(st.st_mode & 0111)) |
| m &= ~0111; |
| if (!(st.st_mode & 0222)) |
| m &= ~0222; |
| if (!(st.st_mode & 0444)) |
| m &= ~0444; |
| if (!S_ISDIR(st.st_mode)) |
| m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ |
| } |
| |
| if (m == (st.st_mode & 07777)) |
| log_debug("\"%s\" has right mode %o", path, st.st_mode); |
| else { |
| log_debug("chmod \"%s\" to mode %o", path, m); |
| if (chmod(fn, m) < 0) |
| return log_error_errno(errno, "chmod(%s) failed: %m", path); |
| } |
| } |
| |
| if ((i->uid != st.st_uid || i->gid != st.st_gid) && |
| (i->uid_set || i->gid_set)) { |
| log_debug("chown \"%s\" to "UID_FMT"."GID_FMT, |
| path, |
| i->uid_set ? i->uid : UID_INVALID, |
| i->gid_set ? i->gid : GID_INVALID); |
| if (chown(fn, |
| 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); |
| } |
| } |
| |
| fd = safe_close(fd); |
| |
| return label_fix(path, false, false); |
| } |
| |
| static int parse_xattrs_from_arg(Item *i) { |
| const char *p; |
| int r; |
| |
| assert(i); |
| assert(i->argument); |
| |
| p = i->argument; |
| |
| for (;;) { |
| _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL, *xattr_replaced = NULL; |
| |
| r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); |
| if (r < 0) |
| log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); |
| if (r <= 0) |
| break; |
| |
| r = specifier_printf(xattr, specifier_table, NULL, &xattr_replaced); |
| if (r < 0) |
| return log_error_errno(r, "Failed to replace specifiers in extended attribute '%s': %m", xattr); |
| |
| r = split_pair(xattr_replaced, "=", &name, &value); |
| if (r < 0) { |
| log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); |
| continue; |
| } |
| |
| if (isempty(name) || isempty(value)) { |
| log_warning("Malformed extended attribute found, ignoring: %s", xattr); |
| continue; |
| } |
| |
| if (strv_push_pair(&i->xattrs, name, value) < 0) |
| return log_oom(); |
| |
| name = value = NULL; |
| } |
| |
| return 0; |
| } |
| |
| 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); |
| log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); |
| 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; |
| } |
| |
| static int parse_acls_from_arg(Item *item) { |
| #ifdef HAVE_ACL |
| int r; |
| |
| 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(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); |
| #else |
| log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); |
| #endif |
| |
| return 0; |
| } |
| |
| #ifdef HAVE_ACL |
| static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { |
| _cleanup_(acl_free_charpp) char *t = NULL; |
| _cleanup_(acl_freep) acl_t dup = NULL; |
| int r; |
| |
| /* Returns 0 for success, positive error if already warned, |
| * negative error otherwise. */ |
| |
| 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; |
| |
| t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); |
| log_debug("Setting %s ACL %s on %s.", |
| type == ACL_TYPE_ACCESS ? "access" : "default", |
| strna(t), pretty); |
| |
| r = acl_set_file(path, type, dup); |
| if (r < 0) |
| /* Return positive to indicate we already warned */ |
| return -log_error_errno(errno, |
| "Setting %s ACL \"%s\" on %s failed: %m", |
| type == ACL_TYPE_ACCESS ? "access" : "default", |
| strna(t), pretty); |
| |
| return 0; |
| } |
| #endif |
| |
| static int path_set_acls(Item *item, const char *path) { |
| int r = 0; |
| #ifdef HAVE_ACL |
| char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
| _cleanup_close_ int fd = -1; |
| struct stat st; |
| |
| assert(item); |
| assert(path); |
| |
| fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); |
| if (fd < 0) |
| return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); |
| |
| if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) |
| return log_error_errno(errno, "Failed to fstat() file %s: %m", path); |
| |
| if (S_ISLNK(st.st_mode)) { |
| log_debug("Skipping ACL fix for symlink %s.", path); |
| return 0; |
| } |
| |
| xsprintf(fn, "/proc/self/fd/%i", fd); |
| |
| if (item->acl_access) |
| r = path_set_acl(fn, path, ACL_TYPE_ACCESS, item->acl_access, item->force); |
| |
| if (r == 0 && item->acl_default) |
| r = path_set_acl(fn, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); |
| |
| if (r > 0) |
| return -r; /* already warned */ |
| else if (r == -EOPNOTSUPP) { |
| log_debug_errno(r, "ACLs not supported by file system at %s", path); |
| return 0; |
| } else if (r < 0) |
| log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); |
| #endif |
| return r; |
| } |
| |
| #define ATTRIBUTES_ALL \ |
| (FS_NOATIME_FL | \ |
| FS_SYNC_FL | \ |
| FS_DIRSYNC_FL | \ |
| FS_APPEND_FL | \ |
| FS_COMPR_FL | \ |
| FS_NODUMP_FL | \ |
| FS_EXTENT_FL | \ |
| FS_IMMUTABLE_FL | \ |
| FS_JOURNAL_DATA_FL | \ |
| FS_SECRM_FL | \ |
| FS_UNRM_FL | \ |
| FS_NOTAIL_FL | \ |
| FS_TOPDIR_FL | \ |
| FS_NOCOW_FL) |
| |
| static int parse_attribute_from_arg(Item *item) { |
| |
| static const struct { |
| char character; |
| unsigned value; |
| } attributes[] = { |
| { 'A', FS_NOATIME_FL }, /* do not update atime */ |
| { 'S', FS_SYNC_FL }, /* Synchronous updates */ |
| { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ |
| { 'a', FS_APPEND_FL }, /* writes to file may only append */ |
| { 'c', FS_COMPR_FL }, /* Compress file */ |
| { 'd', FS_NODUMP_FL }, /* do not dump file */ |
| { 'e', FS_EXTENT_FL }, /* Extents */ |
| { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ |
| { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ |
| { 's', FS_SECRM_FL }, /* Secure deletion */ |
| { 'u', FS_UNRM_FL }, /* Undelete */ |
| { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ |
| { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies*/ |
| { 'C', FS_NOCOW_FL }, /* Do not cow file */ |
| }; |
| |
| enum { |
| MODE_ADD, |
| MODE_DEL, |
| MODE_SET |
| } mode = MODE_ADD; |
| |
| unsigned value = 0, mask = 0; |
| const char *p; |
| |
| assert(item); |
| |
| p = item->argument; |
| if (p) { |
| if (*p == '+') { |
| mode = MODE_ADD; |
| p++; |
| } else if (*p == '-') { |
| mode = MODE_DEL; |
| p++; |
| } else if (*p == '=') { |
| mode = MODE_SET; |
| p++; |
| } |
| } |
| |
| if (isempty(p) && mode != MODE_SET) { |
| log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); |
| return -EINVAL; |
| } |
| |
| for (; p && *p ; p++) { |
| unsigned i, v; |
| |
| for (i = 0; i < ELEMENTSOF(attributes); i++) |
| if (*p == attributes[i].character) |
| break; |
| |
| if (i >= ELEMENTSOF(attributes)) { |
| log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); |
| return -EINVAL; |
| } |
| |
| v = attributes[i].value; |
| |
| SET_FLAG(value, v, (mode == MODE_ADD || mode == MODE_SET)); |
| |
| mask |= v; |
| } |
| |
| if (mode == MODE_SET) |
| mask |= ATTRIBUTES_ALL; |
| |
| assert(mask != 0); |
| |
| item->attribute_mask = mask; |
| item->attribute_value = value; |
| item->attribute_set = true; |
| |
| return 0; |
| } |
| |
| static int path_set_attribute(Item *item, const char *path) { |
| _cleanup_close_ int fd = -1; |
| struct stat st; |
| unsigned f; |
| int r; |
| |
| if (!item->attribute_set || item->attribute_mask == 0) |
| return 0; |
| |
| fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOATIME|O_NOFOLLOW); |
| if (fd < 0) { |
| if (errno == ELOOP) |
| return log_error_errno(errno, "Skipping file attributes adjustment on symlink %s.", path); |
| |
| return log_error_errno(errno, "Cannot open '%s': %m", path); |
| } |
| |
| if (fstat(fd, &st) < 0) |
| return log_error_errno(errno, "Cannot stat '%s': %m", path); |
| |
| /* Issuing the file attribute ioctls on device nodes is not |
| * safe, as that will be delivered to the drivers, not the |
| * file system containing the device node. */ |
| if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode)) { |
| log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); |
| return -EINVAL; |
| } |
| |
| f = item->attribute_value & item->attribute_mask; |
| |
| /* Mask away directory-specific flags */ |
| if (!S_ISDIR(st.st_mode)) |
| f &= ~FS_DIRSYNC_FL; |
| |
| r = chattr_fd(fd, f, item->attribute_mask); |
| if (r < 0) |
| log_full_errno(r == -ENOTTY ? LOG_DEBUG : LOG_WARNING, |
| r, |
| "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", |
| path, item->attribute_value, item->attribute_mask); |
| |
| return 0; |
| } |
| |
| static int write_one_file(Item *i, const char *path) { |
| _cleanup_close_ int fd = -1; |
| int flags, r = 0; |
| struct stat st; |
| |
| assert(i); |
| assert(path); |
| |
| flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW : |
| i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; |
| |
| RUN_WITH_UMASK(0000) { |
| mac_selinux_create_file_prepare(path, S_IFREG); |
| fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); |
| mac_selinux_create_file_clear(); |
| } |
| |
| if (fd < 0) { |
| if (i->type == WRITE_FILE && errno == ENOENT) { |
| log_debug_errno(errno, "Not writing \"%s\": %m", path); |
| return 0; |
| } |
| |
| r = -errno; |
| if (!i->argument && errno == EROFS && stat(path, &st) == 0 && |
| (i->type == CREATE_FILE || st.st_size == 0)) |
| goto check_mode; |
| |
| return log_error_errno(r, "Failed to create file %s: %m", path); |
| } |
| |
| if (i->argument) { |
| _cleanup_free_ char *unescaped = NULL, *replaced = NULL; |
| |
| log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path); |
| |
| r = cunescape(i->argument, 0, &unescaped); |
| if (r < 0) |
| return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); |
| |
| r = specifier_printf(unescaped, specifier_table, NULL, &replaced); |
| if (r < 0) |
| return log_error_errno(r, "Failed to replace specifiers in parameter to write '%s': %m", unescaped); |
| |
| r = loop_write(fd, replaced, strlen(replaced), false); |
| if (r < 0) |
| return log_error_errno(r, "Failed to write file \"%s\": %m", path); |
| } else |
| log_debug("\"%s\" has been created.", path); |
| |
| fd = safe_close(fd); |
| |
| if (stat(path, &st) < 0) |
| return log_error_errno(errno, "stat(%s) failed: %m", path); |
| |
| check_mode: |
| if (!S_ISREG(st.st_mode)) { |
| log_error("%s is not a file.", path); |
| return -EEXIST; |
| } |
| |
| r = path_set_perms(i, path); |
| if (r < 0) |
| return r; |
| |
| return 0; |
| } |
| |
| 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; |
| |
| assert(i); |
| assert(path); |
| |
| /* This returns the first error we run into, but nevertheless |
| * tries to go on */ |
| |
| d = opendir_nomod(path); |
| if (!d) |
| return errno == ENOENT || errno == ENOTDIR ? 0 : -errno; |
| |
| for (;;) { |
| _cleanup_free_ char *p = NULL; |
| struct dirent *de; |
| int q; |
| |
| errno = 0; |
| de = readdir(d); |
| if (!de) { |
| if (errno > 0 && r == 0) |
| r = -errno; |
| |
| break; |
| } |
| |
| if (STR_IN_SET(de->d_name, ".", "..")) |
| continue; |
| |
| p = strjoin(path, "/", de->d_name, NULL); |
| if (!p) |
| return -ENOMEM; |
| |
| 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_do_children(i, p, action); |
| if (q < 0 && r == 0) |
| r = q; |
| } |
| } |
| |
| return r; |
| } |
| |
| static int glob_item(Item *i, action_t action, bool recursive) { |
| _cleanup_globfree_ glob_t g = { |
| .gl_closedir = (void (*)(void *)) closedir, |
| .gl_readdir = (struct dirent *(*)(void *)) readdir, |
| .gl_opendir = (void *(*)(const char *)) opendir_nomod, |
| .gl_lstat = lstat, |
| .gl_stat = stat, |
| }; |
| int r = 0, k; |
| char **fn; |
| |
| errno = 0; |
| k = glob(i->path, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g); |
| 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; |
| } |
| |
| typedef enum { |
| CREATION_NORMAL, |
| CREATION_EXISTING, |
| CREATION_FORCE, |
| _CREATION_MODE_MAX, |
| _CREATION_MODE_INVALID = -1 |
| } CreationMode; |
| |
| static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { |
| [CREATION_NORMAL] = "Created", |
| [CREATION_EXISTING] = "Found existing", |
| [CREATION_FORCE] = "Created replacement", |
| }; |
| |
| DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); |
| |
| static int create_item(Item *i) { |
| _cleanup_free_ char *resolved = NULL; |
| struct stat st; |
| int r = 0; |
| int q = 0; |
| CreationMode creation; |
| |
| assert(i); |
| |
| log_debug("Running create action for entry %c %s", (char) i->type, i->path); |
| |
| switch (i->type) { |
| |
| case IGNORE_PATH: |
| case IGNORE_DIRECTORY_PATH: |
| case REMOVE_PATH: |
| case RECURSIVE_REMOVE_PATH: |
| return 0; |
| |
| case CREATE_FILE: |
| case TRUNCATE_FILE: |
| r = write_one_file(i, i->path); |
| if (r < 0) |
| return r; |
| break; |
| |
| case COPY_FILES: { |
| r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
| if (r < 0) |
| return log_error_errno(r, "Failed to substitute specifiers in copy source %s: %m", i->argument); |
| |
| log_debug("Copying tree \"%s\" to \"%s\".", resolved, i->path); |
| r = copy_tree(resolved, i->path, false); |
| |
| if (r == -EROFS && stat(i->path, &st) == 0) |
| r = -EEXIST; |
| |
| if (r < 0) { |
| struct stat a, b; |
| |
| if (r != -EEXIST) |
| return log_error_errno(r, "Failed to copy files to %s: %m", i->path); |
| |
| if (stat(resolved, &a) < 0) |
| return log_error_errno(errno, "stat(%s) failed: %m", resolved); |
| |
| 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); |
| return 0; |
| } |
| } |
| |
| r = path_set_perms(i, i->path); |
| if (r < 0) |
| return r; |
| |
| break; |
| |
| case WRITE_FILE: |
| r = glob_item(i, write_one_file, false); |
| if (r < 0) |
| return r; |
| |
| break; |
| |
| case CREATE_DIRECTORY: |
| case TRUNCATE_DIRECTORY: |
| case CREATE_SUBVOLUME: |
| case CREATE_SUBVOLUME_INHERIT_QUOTA: |
| case CREATE_SUBVOLUME_NEW_QUOTA: |
| RUN_WITH_UMASK(0000) |
| mkdir_parents_label(i->path, 0755); |
| |
| if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) { |
| |
| if (btrfs_is_subvol(isempty(arg_root) ? "/" : arg_root) <= 0) |
| |
| /* Don't create a subvolume unless the |
| * root directory is one, too. We do |
| * this under the assumption that if |
| * the root directory is just a plain |
| * directory (i.e. very light-weight), |
| * we shouldn't try to split it up |
| * into subvolumes (i.e. more |
| * heavy-weight). Thus, chroot() |
| * environments and suchlike will get |
| * a full brtfs subvolume set up below |
| * their tree only if they |
| * specifically set up a btrfs |
| * subvolume for the root dir too. */ |
| |
| r = -ENOTTY; |
| else { |
| 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) { |
| int k; |
| |
| if (r != -EEXIST && r != -EROFS) |
| return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); |
| |
| k = is_dir(i->path, false); |
| if (k == -ENOENT && r == -EROFS) |
| return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path); |
| if (k < 0) |
| return log_error_errno(k, "Failed to check if %s exists: %m", i->path); |
| if (!k) { |
| log_warning("\"%s\" already exists and is not a directory.", i->path); |
| return 0; |
| } |
| |
| creation = CREATION_EXISTING; |
| } else |
| creation = CREATION_NORMAL; |
| |
| log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); |
| |
| if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) { |
| r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA); |
| if (r == -ENOTTY) |
| log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (unsupported fs or dir not a subvolume): %m", i->path); |
| else if (r == -EROFS) |
| log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (fs is read-only).", i->path); |
| else if (r == -ENOPROTOOPT) |
| log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (quota support is disabled).", i->path); |
| else if (r < 0) |
| q = log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path); |
| else if (r > 0) |
| log_debug("Adjusted quota for subvolume \"%s\".", i->path); |
| else if (r == 0) |
| log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path); |
| } |
| |
| /* fall through */ |
| |
| case EMPTY_DIRECTORY: |
| r = path_set_perms(i, i->path); |
| if (q < 0) |
| return q; |
| if (r < 0) |
| return r; |
| |
| break; |
| |
| case CREATE_FIFO: |
| RUN_WITH_UMASK(0000) { |
| mac_selinux_create_file_prepare(i->path, S_IFIFO); |
| r = mkfifo(i->path, i->mode); |
| mac_selinux_create_file_clear(); |
| } |
| |
| if (r < 0) { |
| if (errno != EEXIST) |
| return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); |
| |
| if (lstat(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_create_file_prepare(i->path, S_IFIFO); |
| r = mkfifo_atomic(i->path, i->mode); |
| mac_selinux_create_file_clear(); |
| } |
| |
| if (r < 0) |
| return log_error_errno(r, "Failed to create fifo %s: %m", i->path); |
| creation = CREATION_FORCE; |
| } else { |
| log_warning("\"%s\" already exists and is not a fifo.", i->path); |
| return 0; |
| } |
| } else |
| creation = CREATION_EXISTING; |
| } else |
| creation = CREATION_NORMAL; |
| log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); |
| |
| r = path_set_perms(i, i->path); |
| if (r < 0) |
| return r; |
| |
| break; |
| } |
| |
| case CREATE_SYMLINK: { |
| r = specifier_printf(i->argument, specifier_table, NULL, &resolved); |
| if (r < 0) |
| return log_error_errno(r, "Failed to substitute specifiers in symlink target %s: %m", i->argument); |
| |
| mac_selinux_create_file_prepare(i->path, S_IFLNK); |
| r = symlink(resolved, i->path); |
| mac_selinux_create_file_clear(); |
| |
| if (r < 0) { |
| _cleanup_free_ char *x = NULL; |
| |
| if (errno != EEXIST) |
| return log_error_errno(errno, "symlink(%s, %s) failed: %m", resolved, i->path); |
| |
| r = readlink_malloc(i->path, &x); |
| if (r < 0 || !streq(resolved, x)) { |
| |
| if (i->force) { |
| mac_selinux_create_file_prepare(i->path, S_IFLNK); |
| r = symlink_atomic(resolved, i->path); |
| mac_selinux_create_file_clear(); |
| |
| if (r < 0) |
| return log_error_errno(r, "symlink(%s, %s) failed: %m", resolved, i->path); |
| |
| creation = CREATION_FORCE; |
| } else { |
| log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); |
| return 0; |
| } |
| } else |
| creation = CREATION_EXISTING; |
| } else |
| |
| creation = CREATION_NORMAL; |
| log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); |
| break; |
| } |
| |
| case CREATE_BLOCK_DEVICE: |
| case CREATE_CHAR_DEVICE: { |
| mode_t file_type; |
| |
| if (have_effective_cap(CAP_MKNOD) == 0) { |
| /* In a container we lack CAP_MKNOD. We |
| shouldn't attempt to create the device node in |
| that case to avoid noise, and we don't support |
| virtualized devices in containers anyway. */ |
| |
| log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); |
| return 0; |
| } |
| |
| file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; |
| |
| RUN_WITH_UMASK(0000) { |
| mac_selinux_create_file_prepare(i->path, file_type); |
| r = mknod(i->path, i->mode | file_type, i->major_minor); |
| mac_selinux_create_file_clear(); |
| } |
| |
| if (r < 0) { |
| if (errno == EPERM) { |
| log_debug("We lack permissions, possibly because of cgroup configuration; " |
| "skipping creation of device node %s.", i->path); |
| return 0; |
| } |
| |
| if (errno != EEXIST) |
| return log_error_errno(errno, "Failed to create device node %s: %m", i->path); |
| |
| if (lstat(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_create_file_prepare(i->path, file_type); |
| r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); |
| mac_selinux_create_file_clear(); |
| } |
| |
| if (r < 0) |
| return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); |
| creation = CREATION_FORCE; |
| } else { |
| log_debug("%s is not a device node.", i->path); |
| return 0; |
| } |
| } else |
| creation = CREATION_EXISTING; |
| } else |
| creation = CREATION_NORMAL; |
| |
| log_debug("%s %s device node \"%s\" %u:%u.", |
| creation_mode_verb_to_string(creation), |
| i->type == CREATE_BLOCK_DEVICE ? "block" : "char", |
| i->path, major(i->mode), minor(i->mode)); |
| |
| r = path_set_perms(i, i->path); |
| if (r < 0) |
| return r; |
| |
| break; |
| } |
| |
| case ADJUST_MODE: |
| case RELABEL_PATH: |
| 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; |
| |
| 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; |
| |
| case SET_ATTRIBUTE: |
| r = glob_item(i, path_set_attribute, false); |
| if (r < 0) |
| return r; |
| break; |
| |
| case RECURSIVE_SET_ATTRIBUTE: |
| r = glob_item(i, path_set_attribute, true); |
| if (r < 0) |
| return r; |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static int remove_item_instance(Item *i, const char *instance) { |
| int r; |
| |
| assert(i); |
| |
| switch (i->type) { |
| |
| case REMOVE_PATH: |
| if (remove(instance) < 0 && errno != ENOENT) |
| return log_error_errno(errno, "rm(%s): %m", instance); |
| |
| break; |
| |
| case TRUNCATE_DIRECTORY: |
| case RECURSIVE_REMOVE_PATH: |
| /* FIXME: we probably should use dir_cleanup() here |
| * instead of rm_rf() so that 'x' is honoured. */ |
| log_debug("rm -rf \"%s\"", instance); |
| r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL); |
| if (r < 0 && r != -ENOENT) |
| return log_error_errno(r, "rm_rf(%s): %m", instance); |
| |
| break; |
| |
| default: |
| assert_not_reached("wut?"); |
| } |
| |
| return 0; |
| } |
| |
| static int remove_item(Item *i) { |
| assert(i); |
| |
| log_debug("Running remove action for entry %c %s", (char) i->type, i->path); |
| |
| switch (i->type) { |
| |
| case REMOVE_PATH: |
| case TRUNCATE_DIRECTORY: |
| case RECURSIVE_REMOVE_PATH: |
| return glob_item(i, remove_item_instance, false); |
| |
| default: |
| return 0; |
| } |
| } |
| |
| static int clean_item_instance(Item *i, const char* instance) { |
| _cleanup_closedir_ DIR *d = NULL; |
| struct stat s, ps; |
| bool mountpoint; |
| usec_t cutoff, n; |
| char timestamp[FORMAT_TIMESTAMP_MAX]; |
| |
| assert(i); |
| |
| if (!i->age_set) |
| return 0; |
| |
| n = now(CLOCK_REALTIME); |
| if (n < i->age) |
| return 0; |
| |
| cutoff = n - i->age; |
| |
| d = opendir_nomod(instance); |
| if (!d) { |
| if (IN_SET(errno, ENOENT, ENOTDIR)) { |
| log_debug_errno(errno, "Directory \"%s\": %m", instance); |
| return 0; |
| } |
| |
| return log_error_errno(errno, "Failed to open directory %s: %m", instance); |
| } |
| |
| 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) |
| return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); |
| |
| mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino; |
| |
| log_debug("Cleanup threshold for %s \"%s\" is %s", |
| mountpoint ? "mount point" : "directory", |
| instance, |
| format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); |
| |
| return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, |
| MAX_DEPTH, i->keep_first_level); |
| } |
| |
| static int clean_item(Item *i) { |
| assert(i); |
| |
| log_debug("Running clean action for entry %c %s", (char) i->type, i->path); |
| |
| switch (i->type) { |
| case CREATE_DIRECTORY: |
| case CREATE_SUBVOLUME: |
| case CREATE_SUBVOLUME_INHERIT_QUOTA: |
| case CREATE_SUBVOLUME_NEW_QUOTA: |
| case EMPTY_DIRECTORY: |
| case TRUNCATE_DIRECTORY: |
| case IGNORE_PATH: |
| case COPY_FILES: |
| clean_item_instance(i, i->path); |
| return 0; |
| case IGNORE_DIRECTORY_PATH: |
| return glob_item(i, clean_item_instance, false); |
| default: |
| return 0; |
| } |
| } |
| |
| static int process_item_array(ItemArray *array); |
| |
| static int process_item(Item *i) { |
| int r, q, p, t = 0; |
| _cleanup_free_ char *prefix = NULL; |
| |
| assert(i); |
| |
| if (i->done) |
| return 0; |
| |
| i->done = true; |
| |
| prefix = malloc(strlen(i->path) + 1); |
| if (!prefix) |
| return log_oom(); |
| |
| PATH_FOREACH_PREFIX(prefix, i->path) { |
| ItemArray *j; |
| |
| j = ordered_hashmap_get(items, prefix); |
| 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; |
| |
| return t < 0 ? t : |
| r < 0 ? r : |
| q < 0 ? q : |
| p; |
| } |
| |
| static int process_item_array(ItemArray *array) { |
| unsigned n; |
| int r = 0, k; |
| |
| assert(array); |
| |
| for (n = 0; n < array->count; n++) { |
| k = process_item(array->items + n); |
| if (k < 0 && r == 0) |
| r = k; |
| } |
| |
| return r; |
| } |
| |
| static void item_free_contents(Item *i) { |
| assert(i); |
| free(i->path); |
| free(i->argument); |
| strv_free(i->xattrs); |
| |
| #ifdef HAVE_ACL |
| acl_free(i->acl_access); |
| acl_free(i->acl_default); |
| #endif |
| } |
| |
| static void item_array_free(ItemArray *a) { |
| unsigned n; |
| |
| if (!a) |
| return; |
| |
| for (n = 0; n < a->count; n++) |
| item_free_contents(a->items + n); |
| free(a->items); |
| free(a); |
| } |
| |
| static int item_compare(const void *a, const void *b) { |
| const Item *x = a, *y = b; |
| |
| /* Make sure that the ownership taking item is put first, so |
| * that we first create the node, and then can adjust it */ |
| |
| if (takes_ownership(x->type) && !takes_ownership(y->type)) |
| return -1; |
| if (!takes_ownership(x->type) && takes_ownership(y->type)) |
| return 1; |
| |
| return (int) x->type - (int) y->type; |
| } |
| |
| static bool item_compatible(Item *a, Item *b) { |
| assert(a); |
| assert(b); |
| assert(streq(a->path, b->path)); |
| |
| if (takes_ownership(a->type) && takes_ownership(b->type)) |
| /* check if the items are the same */ |
| return streq_ptr(a->argument, b->argument) && |
| |
| a->uid_set == b->uid_set && |
| a->uid == b->uid && |
| |
| a->gid_set == b->gid_set && |
| a->gid == b->gid && |
| |
| a->mode_set == b->mode_set && |
| a->mode == b->mode && |
| |
| a->age_set == b->age_set && |
| a->age == b->age && |
| |
| a->mask_perms == b->mask_perms && |
| |
| a->keep_first_level == b->keep_first_level && |
| |
| a->major_minor == b->major_minor; |
| |
| return true; |
| } |
| |
| static bool should_include_path(const char *path) { |
| char **prefix; |
| |
| STRV_FOREACH(prefix, arg_exclude_prefixes) |
| if (path_startswith(path, *prefix)) { |
| log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", |
| path, *prefix); |
| return false; |
| } |
| |
| STRV_FOREACH(prefix, arg_include_prefixes) |
| if (path_startswith(path, *prefix)) { |
| log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); |
| return true; |
| } |
| |
| /* no matches, so we should include this path only if we |
| * have no whitelist at all */ |
| if (strv_length(arg_include_prefixes) == 0) |
| return true; |
| |
| log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); |
| return false; |
| } |
| |
| 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_free_contents) Item i = {}; |
| ItemArray *existing; |
| OrderedHashmap *h; |
| int r, pos; |
| bool force = false, boot = false; |
| |
| assert(fname); |
| assert(line >= 1); |
| assert(buffer); |
| |
| r = extract_many_words( |
| &buffer, |
| NULL, |
| EXTRACT_QUOTES, |
| &action, |
| &path, |
| &mode, |
| &user, |
| &group, |
| &age, |
| NULL); |
| if (r < 0) |
| return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); |
| else if (r < 2) { |
| log_error("[%s:%u] Syntax error.", fname, line); |
| return -EIO; |
| } |
| |
| if (!isempty(buffer) && !streq(buffer, "-")) { |
| i.argument = strdup(buffer); |
| if (!i.argument) |
| return log_oom(); |
| } |
| |
| if (isempty(action)) { |
| log_error("[%s:%u] Command too short '%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 (boot && !arg_boot) { |
| log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", |
| action, path); |
| return 0; |
| } |
| |
| i.type = action[0]; |
| i.force = force; |
| |
| 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; |
| } |
| |
| switch (i.type) { |
| |
| case CREATE_DIRECTORY: |
| case CREATE_SUBVOLUME: |
| case CREATE_SUBVOLUME_INHERIT_QUOTA: |
| case CREATE_SUBVOLUME_NEW_QUOTA: |
| case EMPTY_DIRECTORY: |
| case TRUNCATE_DIRECTORY: |
| case CREATE_FIFO: |
| case IGNORE_PATH: |
| case IGNORE_DIRECTORY_PATH: |
| case REMOVE_PATH: |
| case RECURSIVE_REMOVE_PATH: |
| case ADJUST_MODE: |
| case RELABEL_PATH: |
| case RECURSIVE_RELABEL_PATH: |
| if (i.argument) |
| log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); |
| |
| break; |
| |
| case CREATE_FILE: |
| case TRUNCATE_FILE: |
| break; |
| |
| case CREATE_SYMLINK: |
| if (!i.argument) { |
| i.argument = strappend("/usr/share/factory/", i.path); |
| if (!i.argument) |
| return log_oom(); |
| } |
| break; |
| |
| case WRITE_FILE: |
| 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) |
| return log_oom(); |
| } 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); |
| break; |
| |
| case CREATE_CHAR_DEVICE: |
| case CREATE_BLOCK_DEVICE: { |
| unsigned major, minor; |
| |
| 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); |
| return -EBADMSG; |
| } |
| |
| 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 = parse_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 = parse_acls_from_arg(&i); |
| if (r < 0) |
| return r; |
| break; |
| |
| case SET_ATTRIBUTE: |
| case RECURSIVE_SET_ATTRIBUTE: |
| if (!i.argument) { |
| log_error("[%s:%u] Set file attribute requires argument.", fname, line); |
| return -EBADMSG; |
| } |
| r = parse_attribute_from_arg(&i); |
| if (r < 0) |
| return r; |
| break; |
| |
| default: |
| log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); |
| return -EBADMSG; |
| } |
| |
| 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); |
| |
| if (!should_include_path(i.path)) |
| return 0; |
| |
| if (arg_root) { |
| char *p; |
| |
| p = prefix_root(arg_root, i.path); |
| if (!p) |
| return log_oom(); |
| |
| free(i.path); |
| i.path = p; |
| } |
| |
| if (!isempty(user) && !streq(user, "-")) { |
| const char *u = user; |
| |
| 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; |
| } |
| |
| if (!isempty(group) && !streq(group, "-")) { |
| const char *g = group; |
| |
| 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; |
| } |
| |
| if (!isempty(mode) && !streq(mode, "-")) { |
| const char *mm = mode; |
| unsigned m; |
| |
| if (*mm == '~') { |
| i.mask_perms = true; |
| mm++; |
| } |
| |
| if (parse_mode(mm, &m) < 0) { |
| log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); |
| return -EBADMSG; |
| } |
| |
| i.mode = m; |
| i.mode_set = true; |
| } else |
| i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644; |
| |
| if (!isempty(age) && !streq(age, "-")) { |
| const char *a = age; |
| |
| if (*a == '~') { |
| i.keep_first_level = true; |
| a++; |
| } |
| |
| if (parse_sec(a, &i.age) < 0) { |
| log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
| return -EBADMSG; |
| } |
| |
| i.age_set = true; |
| } |
| |
| h = needs_glob(i.type) ? globs : items; |
| |
| existing = ordered_hashmap_get(h, i.path); |
| if (existing) { |
| unsigned n; |
| |
| 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); |
| return 0; |
| } |
| } |
| } else { |
| existing = new0(ItemArray, 1); |
| r = ordered_hashmap_put(h, i.path, existing); |
| if (r < 0) |
| return log_oom(); |
| } |
| |
| if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) |
| return log_oom(); |
| |
| memcpy(existing->items + existing->count++, &i, sizeof(i)); |
| |
| /* Sort item array, to enforce stable ordering of application */ |
| qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); |
| |
| zero(i); |
| return 0; |
| } |
| |
| static void help(void) { |
| printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
| "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" |
| " -h --help Show this help\n" |
| " --version Show package version\n" |
| " --create Create marked files/directories\n" |
| " --clean Clean up marked directories\n" |
| " --remove Remove marked files/directories\n" |
| " --boot Execute actions only safe at boot\n" |
| " --prefix=PATH Only apply rules with the specified prefix\n" |
| " --exclude-prefix=PATH Ignore rules with the specified prefix\n" |
| " --root=PATH Operate on an alternate filesystem root\n", |
| program_invocation_short_name); |
| } |
| |
| static int parse_argv(int argc, char *argv[]) { |
| |
| enum { |
| ARG_VERSION = 0x100, |
| ARG_CREATE, |
| ARG_CLEAN, |
| ARG_REMOVE, |
| ARG_BOOT, |
| ARG_PREFIX, |
| ARG_EXCLUDE_PREFIX, |
| ARG_ROOT, |
| }; |
| |
| static const struct option options[] = { |
| { "help", no_argument, NULL, 'h' }, |
| { "version", no_argument, NULL, ARG_VERSION }, |
| { "create", no_argument, NULL, ARG_CREATE }, |
| { "clean", no_argument, NULL, ARG_CLEAN }, |
| { "remove", no_argument, NULL, ARG_REMOVE }, |
| { "boot", no_argument, NULL, ARG_BOOT }, |
| { "prefix", required_argument, NULL, ARG_PREFIX }, |
| { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, |
| { "root", required_argument, NULL, ARG_ROOT }, |
| {} |
| }; |
| |
| int c, r; |
| |
| assert(argc >= 0); |
| assert(argv); |
| |
| while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
| |
| switch (c) { |
| |
| case 'h': |
| help(); |
| return 0; |
| |
| case ARG_VERSION: |
| return version(); |
| |
| case ARG_CREATE: |
| arg_create = true; |
| break; |
| |
| case ARG_CLEAN: |
| arg_clean = true; |
| break; |
| |
| case ARG_REMOVE: |
| arg_remove = true; |
| break; |
| |
| case ARG_BOOT: |
| arg_boot = true; |
| break; |
| |
| case ARG_PREFIX: |
| if (strv_push(&arg_include_prefixes, optarg) < 0) |
| return log_oom(); |
| break; |
| |
| case ARG_EXCLUDE_PREFIX: |
| if (strv_push(&arg_exclude_prefixes, optarg) < 0) |
| return log_oom(); |
| break; |
| |
| case ARG_ROOT: |
| r = parse_path_argument_and_warn(optarg, true, &arg_root); |
| if (r < 0) |
| return r; |
| break; |
| |
| case '?': |
| return -EINVAL; |
| |
| default: |
| assert_not_reached("Unhandled option"); |
| } |
| |
| if (!arg_clean && !arg_create && !arg_remove) { |
| log_error("You need to specify at least one of --clean, --create or --remove."); |
| return -EINVAL; |
| } |
| |
| return 1; |
| } |
| |
| static int read_config_file(const char *fn, bool ignore_enoent) { |
| _cleanup_fclose_ FILE *_f = NULL; |
| FILE *f; |
| char line[LINE_MAX]; |
| Iterator iterator; |
| unsigned v = 0; |
| Item *i; |
| int r = 0; |
| |
| assert(fn); |
| |
| if (streq(fn, "-")) { |
| log_debug("Reading config from stdin."); |
| fn = "<stdin>"; |
| f = stdin; |
| } else { |
| r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &_f); |
| if (r < 0) { |
| if (ignore_enoent && r == -ENOENT) { |
| log_debug_errno(r, "Failed to open \"%s\", ignoring: %m", fn); |
| return 0; |
| } |
| |
| return log_error_errno(r, "Failed to open '%s': %m", fn); |
| } |
| log_debug("Reading config file \"%s\".", fn); |
| f = _f; |
| } |
| |
| FOREACH_LINE(line, f, break) { |
| char *l; |
| int k; |
| |
| v++; |
| |
| l = strstrip(line); |
| if (*l == '#' || *l == 0) |
| continue; |
| |
| k = parse_line(fn, v, l); |
| if (k < 0 && r == 0) |
| r = k; |
| } |
| |
| /* we have to determine age parameter for each entry of type X */ |
| ORDERED_HASHMAP_FOREACH(i, globs, iterator) { |
| Iterator iter; |
| Item *j, *candidate_item = NULL; |
| |
| if (i->type != IGNORE_DIRECTORY_PATH) |
| continue; |
| |
| ORDERED_HASHMAP_FOREACH(j, items, iter) { |
| if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) |
| continue; |
| |
| if (path_equal(j->path, i->path)) { |
| candidate_item = j; |
| break; |
| } |
| |
| if ((!candidate_item && path_startswith(i->path, j->path)) || |
| (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) |
| candidate_item = j; |
| } |
| |
| if (candidate_item && candidate_item->age_set) { |
| i->age = candidate_item->age; |
| i->age_set = true; |
| } |
| } |
| |
| if (ferror(f)) { |
| log_error_errno(errno, "Failed to read from file %s: %m", fn); |
| if (r == 0) |
| r = -EIO; |
| } |
| |
| return r; |
| } |
| |
| int main(int argc, char *argv[]) { |
| int r, k; |
| ItemArray *a; |
| Iterator iterator; |
| |
| r = parse_argv(argc, argv); |
| if (r <= 0) |
| goto finish; |
| |
| log_set_target(LOG_TARGET_AUTO); |
| log_parse_environment(); |
| log_open(); |
| |
| umask(0022); |
| |
| mac_selinux_init(); |
| |
| items = ordered_hashmap_new(&string_hash_ops); |
| globs = ordered_hashmap_new(&string_hash_ops); |
| |
| if (!items || !globs) { |
| r = log_oom(); |
| goto finish; |
| } |
| |
| r = 0; |
| |
| if (optind < argc) { |
| int j; |
| |
| for (j = optind; j < argc; j++) { |
| k = read_config_file(argv[j], false); |
| if (k < 0 && r == 0) |
| r = k; |
| } |
| |
| } else { |
| _cleanup_strv_free_ char **files = NULL; |
| char **f; |
| |
| r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); |
| if (r < 0) { |
| log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m"); |
| goto finish; |
| } |
| |
| STRV_FOREACH(f, files) { |
| k = read_config_file(*f, true); |
| if (k < 0 && r == 0) |
| r = k; |
| } |
| } |
| |
| /* The non-globbing ones usually create things, hence we apply |
| * them first */ |
| ORDERED_HASHMAP_FOREACH(a, items, iterator) { |
| k = process_item_array(a); |
| if (k < 0 && r == 0) |
| r = k; |
| } |
| |
| /* The globbing ones usually alter things, hence we apply them |
| * second. */ |
| ORDERED_HASHMAP_FOREACH(a, globs, iterator) { |
| k = process_item_array(a); |
| if (k < 0 && r == 0) |
| r = k; |
| } |
| |
| finish: |
| while ((a = ordered_hashmap_steal_first(items))) |
| item_array_free(a); |
| |
| while ((a = ordered_hashmap_steal_first(globs))) |
| item_array_free(a); |
| |
| ordered_hashmap_free(items); |
| ordered_hashmap_free(globs); |
| |
| free(arg_include_prefixes); |
| free(arg_exclude_prefixes); |
| free(arg_root); |
| |
| set_free_free(unix_sockets); |
| |
| mac_selinux_finish(); |
| |
| return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
| } |