/* 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, /var/run and
- * /var/lock which are volatile and hence need to be recreated on
- * bootup. */
+ * properly owned directories beneath /tmp, /var/tmp, /run, which are
+ * volatile and hence need to be recreated on bootup. */
enum {
/* These ones take file names */
TRUNCATE_FILE = 'F',
CREATE_DIRECTORY = 'd',
TRUNCATE_DIRECTORY = 'D',
+ CREATE_FIFO = 'p',
/* These ones take globs */
IGNORE_PATH = 'x',
} Item;
static Hashmap *items = NULL, *globs = NULL;
+static Set *unix_sockets = NULL;
static bool arg_create = false;
static bool arg_clean = false;
static bool arg_remove = false;
+static const char *arg_prefix = NULL;
+
#define MAX_DEPTH 256
static bool needs_glob(int t) {
return NULL;
}
+static void load_unix_sockets(void) {
+ 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. */
+
+ if (!(unix_sockets = set_new(string_hash_func, string_compare_func)))
+ return;
+
+ if (!(f = fopen("/proc/net/unix", "re")))
+ return;
+
+ if (!(fgets(line, sizeof(line), f)))
+ goto fail;
+
+ for (;;) {
+ char *p, *s;
+ int k;
+
+ if (!(fgets(line, sizeof(line), f)))
+ break;
+
+ truncate_nl(line);
+
+ if (strlen(line) < 53)
+ continue;
+
+ p = line + 53;
+ p += strspn(p, WHITESPACE);
+ p += strcspn(p, WHITESPACE);
+ p += strspn(p, WHITESPACE);
+
+ if (*p != '/')
+ continue;
+
+ if (!(s = strdup(p)))
+ goto fail;
+
+ path_kill_slashes(s);
+
+ if ((k = set_put(unix_sockets, s)) < 0) {
+ free(s);
+
+ if (k != -EEXIST)
+ goto fail;
+ }
+ }
+
+ return;
+
+fail:
+ set_free_free(unix_sockets);
+ unix_sockets = NULL;
+
+ if (f)
+ fclose(f);
+}
+
+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_cleanup(
const char *p,
DIR *d,
if (s.st_mode & S_ISVTX)
continue;
- if (mountpoint) {
+ if (mountpoint && S_ISREG(s.st_mode)) {
if (streq(dent->d_name, ".journal") &&
s.st_uid == 0)
continue;
continue;
}
+ /* Ignore sockets that are listed in /proc/net/unix */
+ if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path))
+ continue;
+
+ /* Ignore device nodes */
+ if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode))
+ continue;
+
age = MAX3(timespec_load(&s.st_mtim),
timespec_load(&s.st_atim),
timespec_load(&s.st_ctim));
case CREATE_DIRECTORY:
u = umask(0);
+ mkdir_parents(i->path, 0755);
r = mkdir(i->path, i->mode);
umask(u);
}
break;
+
+ 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);
+ r = -errno;
+ goto finish;
+ }
+
+ if (stat(i->path, &st) < 0) {
+ log_error("stat(%s) failed: %m", i->path);
+ r = -errno;
+ goto finish;
+ }
+
+ if (!S_ISFIFO(st.st_mode)) {
+ log_error("%s is not a fifo.", i->path);
+ r = -EEXIST;
+ goto finish;
+ }
+
+ if (i->mode_set)
+ if (chmod(i->path, i->mode) < 0) {
+ log_error("chmod(%s) failed: %m", i->path);
+ r = -errno;
+ goto finish;
+ }
+
+ if (i->uid_set || i->gid_set)
+ if (chown(i->path,
+ i->uid_set ? i->uid : (uid_t) -1,
+ i->gid_set ? i->gid : (gid_t) -1) < 0) {
+ log_error("chown(%s) failed: %m", i->path);
+ r = -errno;
+ goto finish;
+ }
+
+ break;
}
- if ((r = label_fix(i->path)) < 0)
+ if ((r = label_fix(i->path, false)) < 0)
goto finish;
log_debug("%s created successfully.", i->path);
case CREATE_FILE:
case TRUNCATE_FILE:
case CREATE_DIRECTORY:
+ case CREATE_FIFO:
case IGNORE_PATH:
break;
case CREATE_FILE:
case TRUNCATE_FILE:
case CREATE_DIRECTORY:
+ case CREATE_FIFO:
case IGNORE_PATH:
break;
free(i);
}
-static int parse_line(const char *fname, unsigned line, const char *buffer, const char *prefix) {
- Item *i;
+static bool item_equal(Item *a, Item *b) {
+ assert(a);
+ assert(b);
+
+ if (!streq_ptr(a->path, b->path))
+ return false;
+
+ if (a->type != b->type)
+ return false;
+
+ if (a->uid_set != b->uid_set ||
+ (a->uid_set && a->uid != b->uid))
+ return false;
+
+ if (a->gid_set != b->gid_set ||
+ (a->gid_set && a->gid != b->gid))
+ return false;
+
+ if (a->mode_set != b->mode_set ||
+ (a->mode_set && a->mode != b->mode))
+ return false;
+
+ if (a->age_set != b->age_set ||
+ (a->age_set && a->age != b->age))
+ return false;
+
+ return true;
+}
+
+static int parse_line(const char *fname, unsigned line, const char *buffer) {
+ Item *i, *existing;
char *mode = NULL, *user = NULL, *group = NULL, *age = NULL;
+ Hashmap *h;
int r;
assert(fname);
i->type != TRUNCATE_FILE &&
i->type != CREATE_DIRECTORY &&
i->type != TRUNCATE_DIRECTORY &&
+ i->type != CREATE_FIFO &&
i->type != IGNORE_PATH &&
i->type != REMOVE_PATH &&
i->type != RECURSIVE_REMOVE_PATH) {
path_kill_slashes(i->path);
- if (prefix && !path_startswith(i->path, prefix)) {
+ if (arg_prefix && !path_startswith(i->path, arg_prefix)) {
r = 0;
goto finish;
}
if (user && !streq(user, "-")) {
- unsigned long lu;
+ uid_t uid;
struct passwd *p;
if (streq(user, "root") || streq(user, "0"))
i->uid = 0;
- else if (safe_atolu(user, &lu) >= 0)
- i->uid = (uid_t) lu;
+ else if (parse_uid(user, &uid) >= 0)
+ i->uid = uid;
else if ((p = getpwnam(user)))
i->uid = p->pw_uid;
else {
}
if (group && !streq(group, "-")) {
- unsigned long lu;
+ gid_t gid;
struct group *g;
if (streq(group, "root") || streq(group, "0"))
i->gid = 0;
- else if (safe_atolu(group, &lu) >= 0)
- i->gid = (gid_t) lu;
+ else if (parse_gid(group, &gid) >= 0)
+ i->gid = gid;
else if ((g = getgrnam(group)))
i->gid = g->gr_gid;
else {
i->age_set = true;
}
- if ((r = hashmap_put(needs_glob(i->type) ? globs : items, i->path, i)) < 0) {
- if (r == -EEXIST) {
+ h = needs_glob(i->type) ? globs : items;
+
+ if ((existing = hashmap_get(h, i->path))) {
+
+ /* 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 = 0;
+ goto finish;
+ }
+
+ if ((r = hashmap_put(h, i->path, i)) < 0) {
log_error("Failed to insert item %s: %s", i->path, strerror(-r));
goto finish;
}
return r;
}
-static int scandir_filter(const struct dirent *d) {
- assert(d);
-
- if (ignore_file(d->d_name))
- return 0;
-
- if (d->d_type != DT_REG &&
- d->d_type != DT_LNK)
- return 0;
-
- return endswith(d->d_name, ".conf");
-}
-
static int help(void) {
- printf("%s [OPTIONS...]\n\n"
- "Create and clean up temporary directories.\n\n"
+ 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",
+ " --remove Remove marked files/directories\n"
+ " --prefix=PATH Only apply rules that apply to paths with the specified prefix\n",
program_invocation_short_name);
return 0;
enum {
ARG_CREATE,
ARG_CLEAN,
- ARG_REMOVE
+ ARG_REMOVE,
+ ARG_PREFIX
};
static const struct option options[] = {
{ "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 }
};
arg_remove = true;
break;
+ case ARG_PREFIX:
+ arg_prefix = optarg;
+ break;
+
case '?':
return -EINVAL;
}
if (!arg_clean && !arg_create && !arg_remove) {
- help();
+ 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) {
+ FILE *f;
+ unsigned v = 0;
+ int r = 0;
+
+ assert(fn);
+
+ if (!(f = fopen(fn, "re"))) {
+
+ if (ignore_enoent && errno == ENOENT)
+ return 0;
+
+ log_error("Failed to open %s: %m", fn);
+ return -errno;
+ }
+
+ log_debug("apply: %s\n", fn);
+ for (;;) {
+ char line[LINE_MAX], *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;
+ }
+
+ if (ferror(f)) {
+ log_error("Failed to read from file %s: %m", fn);
+ if (r == 0)
+ r = -EIO;
+ }
+
+ fclose(f);
+
+ return r;
+}
+
int main(int argc, char *argv[]) {
- struct dirent **de = NULL;
- int r, n, j;
- const char *prefix = NULL;
+ int r;
Item *i;
Iterator iterator;
if ((r = parse_argv(argc, argv)) <= 0)
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
- if (optind < argc)
- prefix = argv[optind];
- else
- prefix = "/";
-
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
goto finish;
}
- if ((n = scandir("/etc/tmpfiles.d/", &de, scandir_filter, alphasort)) < 0) {
-
- if (errno == ENOENT)
- r = EXIT_SUCCESS;
- else {
- log_error("Failed to enumerate /etc/tmpfiles.d/ files: %m");
- r = EXIT_FAILURE;
- }
-
- goto finish;
- }
-
r = EXIT_SUCCESS;
- for (j = 0; j < n; j++) {
- int k;
- char *fn;
- FILE *f;
- unsigned v;
-
- k = asprintf(&fn, "/etc/tmpfiles.d/%s", de[j]->d_name);
- free(de[j]);
-
- if (k < 0) {
- log_error("Failed to allocate file name.");
- r = EXIT_FAILURE;
- continue;
- }
-
- if (!(f = fopen(fn, "re"))) {
+ if (optind < argc) {
+ int j;
- if (errno != ENOENT) {
- log_error("Failed to open %s: %m", fn);
+ for (j = optind; j < argc; j++)
+ if (read_config_file(argv[j], false) < 0)
r = EXIT_FAILURE;
- }
- free(fn);
- continue;
- }
-
- v = 0;
- for (;;) {
- char line[LINE_MAX], *l;
-
- if (!(fgets(line, sizeof(line), f)))
- break;
-
- v++;
-
- l = strstrip(line);
- if (*l == '#' || *l == 0)
- continue;
-
- if (parse_line(fn, v, l, prefix) < 0)
- r = EXIT_FAILURE;
- }
+ } else {
+ char **files, **f;
- if (ferror(f)) {
+ r = conf_files_list(&files, ".conf",
+ "/run/tmpfiles.d",
+ "/etc/tmpfiles.d",
+ "/usr/local/lib/tmpfiles.d",
+ "/usr/lib/tmpfiles.d",
+ NULL);
+ if (r < 0) {
r = EXIT_FAILURE;
- log_error("Failed to read from file %s: %m", fn);
+ log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
+ goto finish;
}
- free(fn);
+ STRV_FOREACH(f, files) {
+ if (read_config_file(*f, true) < 0)
+ r = EXIT_FAILURE;
+ }
- fclose(f);
+ strv_free(files);
}
- free(de);
-
HASHMAP_FOREACH(i, globs, iterator)
- if (process_item(i) < 0)
- r = EXIT_FAILURE;
+ process_item(i);
HASHMAP_FOREACH(i, items, iterator)
- if (process_item(i) < 0)
- r = EXIT_FAILURE;
+ process_item(i);
finish:
while ((i = hashmap_steal_first(items)))
item_free(i);
+ while ((i = hashmap_steal_first(globs)))
+ item_free(i);
+
hashmap_free(items);
hashmap_free(globs);
+ set_free_free(unix_sockets);
+
label_finish();
return r;
~ianmdlvl / elogind.git / blobdiff