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
#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"
#include "set.h"
#include "conf-files.h"
#include "capability.h"
+#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
/* These ones take file names */
CREATE_FILE = 'f',
TRUNCATE_FILE = 'F',
- WRITE_FILE = 'w',
CREATE_DIRECTORY = 'd',
TRUNCATE_DIRECTORY = 'D',
+ CREATE_SUBVOLUME = 'v',
CREATE_FIFO = 'p',
CREATE_SYMLINK = 'L',
CREATE_CHAR_DEVICE = 'c',
CREATE_BLOCK_DEVICE = 'b',
+ 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',
REMOVE_PATH = 'r',
RECURSIVE_REMOVE_PATH = 'R',
+ ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */
RELABEL_PATH = 'z',
- RECURSIVE_RELABEL_PATH = 'Z'
+ RECURSIVE_RELABEL_PATH = 'Z',
} ItemType;
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;
bool gid_set:1;
bool mode_set:1;
bool age_set:1;
+ bool mask_perms:1;
bool keep_first_level:1;
+
+ bool force:1;
+
+ bool done:1;
} Item;
-static Hashmap *items = NULL, *globs = NULL;
-static Set *unix_sockets = NULL;
+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 const char *arg_prefix = NULL;
+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
+static Hashmap *items = NULL, *globs = NULL;
+static Set *unix_sockets = NULL;
+
static bool needs_glob(ItemType t) {
- return t == IGNORE_PATH || t == IGNORE_DIRECTORY_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH || t == RELABEL_PATH || t == RECURSIVE_RELABEL_PATH;
+ return IN_SET(t,
+ WRITE_FILE,
+ IGNORE_PATH,
+ IGNORE_DIRECTORY_PATH,
+ REMOVE_PATH,
+ RECURSIVE_REMOVE_PATH,
+ ADJUST_MODE,
+ 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;
}
static void load_unix_sockets(void) {
- FILE _cleanup_fclose_ *f = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
char line[LINE_MAX];
if (unix_sockets)
/* 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_func, string_compare_func);
+ unix_sockets = set_new(&string_hash_ops);
if (!unix_sockets)
return;
path_kill_slashes(s);
- k = set_put(unix_sockets, s);
- if (k < 0) {
- free(s);
-
- if (k != -EEXIST)
- goto fail;
- }
+ k = set_consume(unix_sockets, s);
+ if (k < 0 && k != -EEXIST)
+ goto fail;
}
return;
}
static int dir_is_mount_point(DIR *d, const char *subdir) {
- struct file_handle *h;
+
+ union file_handle_union h = FILE_HANDLE_INIT;
int mount_id_parent, mount_id;
int r_p, r;
- h = alloca(MAX_HANDLE_SZ);
-
- h->handle_bytes = MAX_HANDLE_SZ;
- r_p = name_to_handle_at(dirfd(d), ".", h, &mount_id_parent, 0);
+ r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0);
if (r_p < 0)
r_p = -errno;
- h->handle_bytes = MAX_HANDLE_SZ;
- r = name_to_handle_at(dirfd(d), subdir, h, &mount_id, 0);
+ 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 only one handle; assume different mount points if one
* of both queries was not supported by the filesystem */
- if (r_p == -ENOSYS || r_p == -ENOTSUP || r == -ENOSYS || r == -ENOTSUP)
+ if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP)
return true;
/* return error */
return r;
}
+static DIR* xopendirat_nomod(int dirfd, const char *path) {
+ DIR *dir;
+
+ dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME);
+ if (!dir) {
+ log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m",
+ dirfd == AT_FDCWD ? "" : "sub", path);
+ if (errno == EPERM) {
+ 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,
dev_t rootdev,
bool mountpoint,
int maxdepth,
- bool keep_this_level)
-{
+ bool keep_this_level) {
+
struct dirent *dent;
struct timespec times[2];
bool deleted = false;
while ((dent = readdir(d))) {
struct stat s;
usec_t age;
- char _cleanup_free_ *sub_path = NULL;
+ _cleanup_free_ char *sub_path = NULL;
- if (streq(dent->d_name, ".") ||
- streq(dent->d_name, ".."))
+ if (STR_IN_SET(dent->d_name, ".", ".."))
continue;
if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) {
+ if (errno == ENOENT)
+ continue;
- if (errno != ENOENT) {
- log_error("stat(%s/%s) failed: %m", p, dent->d_name);
- r = -errno;
- }
-
+ /* 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)
+ 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)
+ 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))
+ 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;
+ }
- if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) {
+ 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 (hashmap_get(items, sub_path))
+ if (hashmap_get(items, sub_path)) {
+ log_debug("Ignoring \"%s\": a separate entry exists.", sub_path);
continue;
+ }
- if (find_glob(globs, sub_path))
+ 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)
+ s.st_uid == 0) {
+ log_debug("Ignoring \"%s\".", sub_path);
continue;
+ }
if (maxdepth <= 0)
- log_warning("Reached max depth on %s.", sub_path);
+ log_warning("Reached max depth on \"%s\".", sub_path);
else {
- DIR _cleanup_closedir_ *sub_dir;
+ _cleanup_closedir_ DIR *sub_dir;
int q;
- sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME);
- if (sub_dir == NULL) {
- if (errno != ENOENT) {
- log_error("opendir(%s/%s) failed: %m", p, dent->d_name);
- r = -errno;
- }
+ 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;
}
* bit already has a meaning for directories,
* so we don't want to overload that. */
- if (keep_this_level)
+ if (keep_this_level) {
+ log_debug("Keeping \"%s\".", sub_path);
continue;
+ }
/* Ignore ctime, we change it when deleting */
- age = MAX(timespec_load(&s.st_mtim),
- timespec_load(&s.st_atim));
- if (age >= cutoff)
+ 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;
+ }
- if (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) {
- log_debug("rmdir '%s'\n", sub_path);
+ 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;
+ }
- if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
- if (errno != ENOENT && errno != ENOTEMPTY) {
- log_error("rmdir(%s): %m", sub_path);
- r = -errno;
- }
+ 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)
+ if (s.st_mode & S_ISVTX) {
+ log_debug("Skipping \"%s\": sticky bit set.", sub_path);
continue;
+ }
- if (mountpoint && S_ISREG(s.st_mode)) {
- if (streq(dent->d_name, ".journal") &&
- s.st_uid == 0)
- continue;
-
- if (streq(dent->d_name, "aquota.user") ||
- streq(dent->d_name, "aquota.group"))
+ if (mountpoint && S_ISREG(s.st_mode))
+ if ((streq(dent->d_name, ".journal") && s.st_uid == 0) ||
+ streq(dent->d_name, "aquota.user") ||
+ streq(dent->d_name, "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))
+ 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))
+ 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)
+ if (keep_this_level) {
+ log_debug("Keeping \"%s\".", sub_path);
continue;
+ }
- age = MAX3(timespec_load(&s.st_mtim),
- timespec_load(&s.st_atim),
- timespec_load(&s.st_ctim));
-
- if (age >= cutoff)
+ 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;
+ }
- log_debug("unlink '%s'\n", sub_path);
+ 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;
+ }
- if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
- if (errno != ENOENT) {
- log_error("unlink(%s): %m", sub_path);
- r = -errno;
- }
+ 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("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;
+
+ assert(i);
+ assert(path);
+
+ st_valid = stat(path, &st) == 0;
+
/* not using i->path directly because it may be a glob */
- if (i->mode_set)
- if (chmod(path, i->mode) < 0) {
- log_error("chmod(%s) failed: %m", path);
- return -errno;
+ if (i->mode_set) {
+ mode_t m = i->mode;
+
+ if (i->mask_perms && st_valid) {
+ 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 (st_valid && 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(path, m) < 0)
+ return log_error_errno(errno, "chmod(%s) failed: %m", path);
}
+ }
- if (i->uid_set || i->gid_set)
+ if ((!st_valid || 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(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);
+ log_debug("\"%s\": setting xattr \"%s=%s\"", path, *name, *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;
+ _cleanup_(acl_free_charpp) char *t = NULL;
+
+ 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("\"%s\": setting %s ACL \"%s\"", path,
+ type == ACL_TYPE_ACCESS ? "access" : "default",
+ strna(t));
+
+ r = acl_set_file(path, type, dup);
+ if (r < 0)
+ return log_error_errno(-errno,
+ "Setting %s ACL \"%s\" on %s failed: %m",
+ type == ACL_TYPE_ACCESS ? "access" : "default",
+ strna(t), path);
+ return 0;
+}
+
+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) {
- int r, e, fd, flags;
+ _cleanup_close_ int fd = -1;
+ int flags, r = 0;
struct stat st;
- mode_t u;
- flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
- i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
+ assert(i);
+ assert(path);
- u = umask(0);
- label_context_set(path, S_IFREG);
- fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode);
- e = errno;
- label_context_clear();
- umask(u);
- errno = e;
+ 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)
+ if (i->type == WRITE_FILE && errno == ENOENT) {
+ log_debug_errno(errno, "Not writing \"%s\": %m", path);
return 0;
+ }
- log_error("Failed to create file %s: %m", path);
+ log_error_errno(errno, "Failed to create file %s: %m", path);
return -errno;
}
if (i->argument) {
- ssize_t n;
- size_t l;
_cleanup_free_ char *unescaped;
+ log_debug("%s to \"%s\".",
+ i->type == CREATE_FILE ? "Appending" : "Writing", path);
+
unescaped = cunescape(i->argument);
- if (unescaped == NULL) {
- close_nointr_nofail(fd);
+ if (!unescaped)
return log_oom();
- }
-
- l = strlen(unescaped);
- n = write(fd, unescaped, l);
- if (n < 0 || (size_t) n < l) {
- log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write");
- close_nointr_nofail(fd);
- return n < 0 ? n : -EIO;
- }
- }
+ r = loop_write(fd, unescaped, strlen(unescaped), false);
+ if (r < 0)
+ return log_error_errno(r, "Failed to write file \"%s\": %m", path);
+ } else
+ log_debug("\"%s\" has been created.", path);
- close_nointr_nofail(fd);
+ 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 recursive_relabel_children(Item *i, const char *path) {
- DIR _cleanup_closedir_ *d;
- int ret = 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(path);
+ d = opendir_nomod(path);
if (!d)
- return errno == ENOENT ? 0 : -errno;
+ return errno == ENOENT || errno == ENOTDIR ? 0 : -errno;
for (;;) {
+ _cleanup_free_ char *p = NULL;
struct dirent *de;
- union dirent_storage buf;
- bool is_dir;
- int r;
- char _cleanup_free_ *entry_path = NULL;
-
- r = readdir_r(d, &buf.de, &de);
- if (r != 0) {
- if (ret == 0)
- ret = -r;
- break;
- }
+ int q;
- if (!de)
- break;
-
- if (streq(de->d_name, ".") || streq(de->d_name, ".."))
- continue;
+ errno = 0;
+ de = readdir(d);
+ if (!de) {
+ if (errno != 0 && r == 0)
+ r = -errno;
- if (asprintf(&entry_path, "%s/%s", path, de->d_name) < 0) {
- if (ret == 0)
- ret = -ENOMEM;
- continue;
+ break;
}
- if (de->d_type == DT_UNKNOWN) {
- struct stat st;
-
- if (lstat(entry_path, &st) < 0) {
- if (ret == 0 && errno != ENOENT)
- ret = -errno;
- continue;
- }
-
- is_dir = S_ISDIR(st.st_mode);
+ if (STR_IN_SET(de->d_name, ".", ".."))
+ continue;
- } else
- is_dir = de->d_type == DT_DIR;
+ p = strjoin(path, "/", de->d_name, NULL);
+ if (!p)
+ return -ENOMEM;
- r = item_set_perms(i, entry_path);
- if (r < 0) {
- if (ret == 0 && r != -ENOENT)
- ret = r;
- continue;
- }
+ q = action(i, p);
+ if (q < 0 && q != -ENOENT && r == 0)
+ r = q;
- if (is_dir) {
- r = recursive_relabel_children(i, entry_path);
- if (r < 0 && ret == 0)
- ret = r;
+ 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 ret;
-}
-
-static int recursive_relabel(Item *i, const char *path) {
- int r;
- struct stat st;
-
- r = item_set_perms(i, path);
- if (r < 0)
- return r;
-
- if (lstat(path, &st) < 0)
- return -errno;
-
- if (S_ISDIR(st.st_mode))
- r = recursive_relabel_children(i, path);
-
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 = {
+ .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;
- glob_t g;
char **fn;
- zero(g);
-
errno = 0;
- if ((k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g)) != 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);
- if (k != GLOB_NOMATCH) {
- if (errno > 0)
- errno = EIO;
+ STRV_FOREACH(fn, g.gl_pathv) {
+ k = action(i, *fn);
+ if (k < 0 && r == 0)
+ r = k;
- log_error("glob(%s) failed: %m", i->path);
- return -errno;
+ if (recursive) {
+ k = item_do_children(i, *fn, action);
+ if (k < 0 && r == 0)
+ r = k;
}
}
- STRV_FOREACH(fn, g.gl_pathv)
- if ((k = action(i, *fn)) < 0)
- r = k;
-
- globfree(&g);
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) {
- int r, e;
- mode_t u;
struct stat st;
+ int r = 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:
if (r < 0)
return r;
break;
+
+ case COPY_FILES:
+ log_debug("Copying tree \"%s\" to \"%s\".", i->argument, i->path);
+ r = copy_tree(i->argument, i->path, false);
+ 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(i->argument, &a) < 0)
+ return log_error_errno(errno, "stat(%s) failed: %m", i->argument);
+
+ 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);
+ 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:
- u = umask(0);
- mkdir_parents_label(i->path, 0755);
- r = mkdir(i->path, i->mode);
- umask(u);
+ RUN_WITH_UMASK(0000)
+ mkdir_parents_label(i->path, 0755);
- if (r < 0 && errno != EEXIST) {
- log_error("Failed to create directory %s: %m", i->path);
- return -errno;
- }
+ if (i->type == CREATE_SUBVOLUME)
+ RUN_WITH_UMASK((~i->mode) & 0777) {
+ r = btrfs_subvol_make(i->path);
+ log_debug_errno(r, "Creating subvolume \"%s\": %m", i->path);
+ }
+ else
+ r = 0;
- if (stat(i->path, &st) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- return -errno;
- }
+ if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY)
+ RUN_WITH_UMASK(0000)
+ r = mkdir_label(i->path, i->mode);
- if (!S_ISDIR(st.st_mode)) {
- log_error("%s is not a directory.", i->path);
- return -EEXIST;
- }
+ if (r < 0) {
+ if (r != -EEXIST)
+ return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path);
+
+ if (stat(i->path, &st) < 0)
+ return log_error_errno(errno, "stat(%s) failed: %m", i->path);
- r = item_set_perms(i, i->path);
+ if (!S_ISDIR(st.st_mode)) {
+ log_debug("\"%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);
+
+ r = path_set_perms(i, i->path);
if (r < 0)
return r;
case CREATE_FIFO:
- u = umask(0);
- r = mkfifo(i->path, i->mode);
- umask(u);
-
- if (r < 0 && errno != EEXIST) {
- log_error("Failed to create fifo %s: %m", i->path);
- return -errno;
+ 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 (stat(i->path, &st) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- return -errno;
- }
+ if (r < 0) {
+ if (errno != EEXIST)
+ return log_error_errno(errno, "Failed to create fifo %s: %m", i->path);
- if (!S_ISFIFO(st.st_mode)) {
- log_error("%s is not a fifo.", i->path);
- return -EEXIST;
- }
+ 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) {
- r = item_set_perms(i, i->path);
+ 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_debug("%s 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: {
- char *x;
+ case CREATE_SYMLINK:
- label_context_set(i->path, S_IFLNK);
+ mac_selinux_create_file_prepare(i->path, S_IFLNK);
r = symlink(i->argument, i->path);
- e = errno;
- label_context_clear();
- errno = e;
-
- if (r < 0 && errno != EEXIST) {
- log_error("symlink(%s, %s) failed: %m", i->argument, i->path);
- return -errno;
- }
+ mac_selinux_create_file_clear();
- r = readlink_malloc(i->path, &x);
if (r < 0) {
- log_error("readlink(%s) failed: %s", i->path, strerror(-r));
- return -errno;
- }
+ _cleanup_free_ char *x = NULL;
- if (!streq(i->argument, x)) {
- free(x);
- log_error("%s is not the right symlinks.", i->path);
- return -EEXIST;
- }
+ 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_create_file_prepare(i->path, S_IFLNK);
+ r = symlink_atomic(i->argument, i->path);
+ mac_selinux_create_file_clear();
+
+ if (r < 0)
+ return log_error_errno(r, "symlink(%s, %s) failed: %m", i->argument, 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);
- free(x);
break;
- }
case CREATE_BLOCK_DEVICE:
case CREATE_CHAR_DEVICE: {
if (have_effective_cap(CAP_MKNOD) == 0) {
/* In a container we lack CAP_MKNOD. We
- shouldnt attempt to create the device node in
+ shouldn't attempt to create the device node in
that case to avoid noise, and we don't support
virtualized devices in containers anyway. */
return 0;
}
- file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR);
-
- u = umask(0);
- label_context_set(i->path, file_type);
- r = mknod(i->path, i->mode | file_type, i->major_minor);
- e = errno;
- label_context_clear();
- umask(u);
- errno = e;
+ file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR;
- if (r < 0 && errno != EEXIST) {
- log_error("Failed to create device node %s: %m", i->path);
- return -errno;
+ 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 (stat(i->path, &st) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- return -errno;
- }
+ 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 ((st.st_mode & S_IFMT) != file_type) {
- log_error("%s is not a device node.", i->path);
- return -EEXIST;
- }
+ if (errno != EEXIST)
+ return log_error_errno(errno, "Failed to create device node %s: %m", i->path);
+
+ 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) {
- r = item_set_perms(i, i->path);
+ 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, item_set_perms);
+ r = glob_item(i, path_set_perms, false);
if (r < 0)
- return 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;
- r = glob_item(i, recursive_relabel);
+ case RECURSIVE_SET_ACL:
+ r = glob_item(i, path_set_acls, true);
if (r < 0)
return r;
+ break;
}
log_debug("%s created successfully.", i->path);
switch (i->type) {
- case CREATE_FILE:
- case TRUNCATE_FILE:
- case CREATE_DIRECTORY:
- case CREATE_FIFO:
- case CREATE_SYMLINK:
- case CREATE_BLOCK_DEVICE:
- case CREATE_CHAR_DEVICE:
- case IGNORE_PATH:
- case IGNORE_DIRECTORY_PATH:
- case RELABEL_PATH:
- case RECURSIVE_RELABEL_PATH:
- case WRITE_FILE:
- 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;
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_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;
+
+ default:
+ assert_not_reached("wut?");
}
return 0;
assert(i);
+ log_debug("Running remove action for entry %c %s", (char) i->type, i->path);
+
switch (i->type) {
case CREATE_FILE:
case TRUNCATE_FILE:
case CREATE_DIRECTORY:
+ case CREATE_SUBVOLUME:
case CREATE_FIFO:
case CREATE_SYMLINK:
case CREATE_CHAR_DEVICE:
case CREATE_BLOCK_DEVICE:
case IGNORE_PATH:
case IGNORE_DIRECTORY_PATH:
+ case ADJUST_MODE:
case RELABEL_PATH:
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;
}
}
static int clean_item_instance(Item *i, const char* instance) {
- DIR _cleanup_closedir_ *d = NULL;
+ _cleanup_closedir_ DIR *d = NULL;
struct stat s, ps;
bool mountpoint;
- int r;
usec_t cutoff, n;
+ char timestamp[FORMAT_TIMESTAMP_MAX];
assert(i);
cutoff = n - i->age;
- d = opendir(instance);
+ d = opendir_nomod(instance);
if (!d) {
- if (errno == ENOENT || errno == ENOTDIR)
+ if (errno == ENOENT || errno == ENOTDIR) {
+ log_debug_errno(errno, "Directory \"%s\": %m", instance);
return 0;
+ }
- log_error("Failed to open directory %s: %m", i->path);
+ log_error_errno(errno, "Failed to open directory %s: %m", instance);
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);
- r = dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint,
- MAX_DEPTH, i->keep_first_level);
- return r;
+ 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 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;
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);
+ 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 = 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;
- if (r < 0)
- return r;
+ 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);
- if (q < 0)
- return q;
+ for (n = 0; n < array->count; n++) {
+ k = process_item(array->items + n);
+ if (k < 0 && r == 0)
+ r = k;
+ }
- return p;
+ return r;
}
-static void item_free(Item *i) {
+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
+}
+
+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 bool item_equal(Item *a, Item *b) {
+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) &&
- !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;
}
+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) {
- Item *i, *existing;
- char _cleanup_free_
- *mode = NULL, *user = NULL, *group = NULL, *age = NULL;
- char type;
+
+ 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 },
+ {}
+ };
+
+ _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
+ _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);
assert(buffer);
- i = new0(Item, 1);
- if (!i)
- return log_oom();
-
r = sscanf(buffer,
- "%c %ms %ms %ms %ms %ms %n",
- &type,
- &i->path,
+ "%ms %ms %ms %ms %ms %ms %n",
+ &action,
+ &path,
&mode,
&user,
&group,
&age,
- &n);
+ &c);
if (r < 2) {
log_error("[%s:%u] Syntax error.", fname, line);
- r = -EIO;
- goto finish;
+ return -EIO;
}
- 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 (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;
+ }
+
+ 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:
case IGNORE_DIRECTORY_PATH:
case REMOVE_PATH:
case RECURSIVE_REMOVE_PATH:
+ case ADJUST_MODE:
case RELABEL_PATH:
case RECURSIVE_RELABEL_PATH:
break;
case CREATE_SYMLINK:
- if (!i->argument) {
- log_error("[%s:%u] Symlink file requires argument.", fname, line);
- r = -EBADMSG;
- goto finish;
+ 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);
- r = -EBADMSG;
- goto finish;
+ 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) {
+ if (!i.argument) {
log_error("[%s:%u] Device file requires argument.", fname, line);
- r = -EBADMSG;
- goto finish;
+ 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);
- r = -EBADMSG;
- goto finish;
+ 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 file type '%c'.", fname, line, type);
- r = -EBADMSG;
- goto finish;
+ log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) 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);
- r = -EBADMSG;
- goto finish;
+ 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 (arg_prefix && !path_startswith(i->path, arg_prefix)) {
- r = 0;
- goto finish;
+ if (!should_include_path(i.path))
+ return 0;
+
+ if (arg_root) {
+ char *p;
+
+ p = strappend(arg_root, i.path);
+ if (!p)
+ return log_oom();
+
+ 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);
- goto finish;
+ 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);
- goto finish;
+ return r;
}
- i->gid_set = true;
+ i.gid_set = true;
}
if (mode && !streq(mode, "-")) {
+ const char *mm = mode;
unsigned m;
- if (sscanf(mode, "%o", &m) != 1) {
+ if (*mm == '~') {
+ i.mask_perms = true;
+ mm++;
+ }
+
+ if (sscanf(mm, "%o", &m) != 1) {
log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
- r = -ENOENT;
- goto finish;
+ 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_usec(a, &i->age) < 0) {
+ if (parse_sec(a, &i.age) < 0) {
log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
- r = -EBADMSG;
- goto finish;
+ 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);
-
- r = 0;
- goto finish;
- }
-
- r = hashmap_put(h, i->path, i);
- if (r < 0) {
- log_error("Failed to insert item %s: %s", i->path, strerror(-r));
- goto finish;
+ 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;
- r = 0;
-
-finish:
- if (i)
- item_free(i);
+ if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1))
+ return log_oom();
- return r;
+ memcpy(existing->items + existing->count++, &i, sizeof(i));
+ zero(i);
+ return 0;
}
-static int help(void) {
-
+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"
- " --create Create marked files/directories\n"
- " --clean Clean up marked directories\n"
- " --remove Remove marked files/directories\n"
- " --prefix=PATH Only apply rules that apply to paths with the specified prefix\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);
-
- return 0;
}
static int parse_argv(int argc, char *argv[]) {
enum {
+ ARG_VERSION = 0x100,
ARG_CREATE,
ARG_CLEAN,
ARG_REMOVE,
- ARG_PREFIX
+ ARG_BOOT,
+ ARG_PREFIX,
+ ARG_EXCLUDE_PREFIX,
+ ARG_ROOT,
};
static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "create", no_argument, NULL, ARG_CREATE },
- { "clean", no_argument, NULL, ARG_CLEAN },
- { "remove", no_argument, NULL, ARG_REMOVE },
- { "prefix", required_argument, NULL, ARG_PREFIX },
- { NULL, 0, NULL, 0 }
+ { "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;
assert(argc >= 0);
assert(argv);
- while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
+ while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
switch (c) {
help();
return 0;
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
case ARG_CREATE:
arg_create = true;
break;
arg_remove = true;
break;
+ case ARG_BOOT:
+ arg_boot = true;
+ break;
+
case ARG_PREFIX:
- arg_prefix = optarg;
+ 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:
+ free(arg_root);
+ arg_root = path_make_absolute_cwd(optarg);
+ if (!arg_root)
+ return log_oom();
+
+ path_kill_slashes(arg_root);
break;
case '?':
return -EINVAL;
default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
+ 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.");
}
static int read_config_file(const char *fn, bool ignore_enoent) {
- FILE *f;
- unsigned v = 0;
- int r;
+ _cleanup_fclose_ FILE *f = NULL;
+ char line[LINE_MAX];
Iterator iterator;
+ unsigned v = 0;
Item *i;
+ int r;
assert(fn);
- r = search_and_fopen_nulstr(fn, "re", conf_file_dirs, &f);
+ r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f);
if (r < 0) {
- if (ignore_enoent && r == -ENOENT)
+ if (ignore_enoent && r == -ENOENT) {
+ log_debug_errno(r, "Failed to open \"%s\": %m", fn);
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);
}
+ log_debug("Reading config file \"%s\".", fn);
- log_debug("apply: %s\n", fn);
- for (;;) {
- char line[LINE_MAX], *l;
+ FOREACH_LINE(line, f, break) {
+ char *l;
int k;
- if (!(fgets(line, sizeof(line), f)))
- break;
-
v++;
l = strstrip(line);
if (*l == '#' || *l == 0)
continue;
- if ((k = parse_line(fn, v, l)) < 0)
- if (r == 0)
- r = k;
+ 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 */
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)) {
candidate_item = j;
}
- if (candidate_item) {
+ if (candidate_item && candidate_item->age_set) {
i->age = candidate_item->age;
i->age_set = true;
}
}
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;
}
- fclose(f);
-
return r;
}
int main(int argc, char *argv[]) {
int r, k;
- Item *i;
+ ItemArray *a;
Iterator iterator;
r = parse_argv(argc, argv);
if (r <= 0)
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+ goto finish;
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
umask(0022);
- label_init(NULL);
+ mac_selinux_init(NULL);
- items = hashmap_new(string_hash_func, string_compare_func);
- globs = hashmap_new(string_hash_func, string_compare_func);
+ items = hashmap_new(&string_hash_ops);
+ globs = hashmap_new(&string_hash_ops);
if (!items || !globs) {
r = log_oom();
_cleanup_strv_free_ char **files = NULL;
char **f;
- r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs);
+ 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;
}
}
}
- 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);
+ free(arg_include_prefixes);
+ free(arg_exclude_prefixes);
+ free(arg_root);
+
set_free_free(unix_sockets);
- label_finish();
+ mac_selinux_finish();
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
~ianmdlvl / elogind.git / blobdiff