/***
This file is part of systemd.
- Copyright 2010 Lennart Poettering
+ Copyright 2010 Lennart Poettering, Kay Sievers
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
#include <dirent.h>
#include <grp.h>
#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.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 "log.h"
#include "util.h"
#include "strv.h"
#include "label.h"
+#include "set.h"
-/* This reads all files listed in /etc/tempfiles.d/?*.conf and creates
+/* 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. */
-
-static void process_line(const char *fname, unsigned line, const char *buffer, const char *prefix) {
- char type;
- char *path = NULL;
- unsigned mode;
- char *user = NULL, *group = NULL;
+ * 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_FIFO = 'p',
+
+ /* These ones take globs */
+ IGNORE_PATH = 'x',
+ REMOVE_PATH = 'r',
+ RECURSIVE_REMOVE_PATH = 'R'
+} ItemType;
+
+typedef struct Item {
+ ItemType type;
+
+ char *path;
uid_t uid;
gid_t gid;
- bool uid_set = false, gid_set = false;
- int n, fd = -1;
+ mode_t mode;
+ usec_t age;
- assert(fname);
- assert(line >= 1);
- assert(buffer);
+ bool uid_set:1;
+ bool gid_set:1;
+ bool mode_set:1;
+ bool age_set:1;
+} Item;
- if ((n = sscanf(buffer,
- "%c "
- "%ms "
- "%o "
- "%ms "
- "%ms ",
- &type,
- &path,
- &mode,
- &user,
- &group)) < 2) {
- log_error("[%s:%u] Syntax error.", fname, line);
- goto finish;
- }
+static Hashmap *items = NULL, *globs = NULL;
+static Set *unix_sockets = NULL;
- if (type != 'f' && type != 'd') {
- log_error("[%s:%u] Unknown file type '%c'.", fname, line, type);
- goto finish;
+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(ItemType t) {
+ return t == IGNORE_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH;
+}
+
+static struct Item* find_glob(Hashmap *h, const char *match) {
+ Item *j;
+ Iterator i;
+
+ HASHMAP_FOREACH(j, h, i)
+ if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
+ return j;
+
+ 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;
+ }
}
- if (prefix && !path_startswith(path, prefix))
- goto finish;
+ fclose(f);
+ return;
- if (user && !streq(user, "-")) {
- unsigned long lu;
- struct passwd *p;
-
- if (streq(user, "root") || streq(user, "0"))
- uid = 0;
- else if (safe_atolu(user, &lu) >= 0)
- uid = (uid_t) lu;
- else if ((p = getpwnam(user)))
- uid = p->pw_uid;
- else {
- log_error("[%s:%u] Unknown user '%s'.", fname, line, user);
- goto finish;
+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,
+ const struct stat *ds,
+ usec_t cutoff,
+ dev_t rootdev,
+ bool mountpoint,
+ int maxdepth)
+{
+ struct dirent *dent;
+ struct timespec times[2];
+ bool deleted = false;
+ char *sub_path = NULL;
+ int r = 0;
+
+ while ((dent = readdir(d))) {
+ struct stat s;
+ usec_t age;
+
+ if (streq(dent->d_name, ".") ||
+ streq(dent->d_name, ".."))
+ continue;
+
+ if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) {
+
+ if (errno != ENOENT) {
+ log_error("stat(%s/%s) failed: %m", p, dent->d_name);
+ r = -errno;
+ }
+
+ continue;
}
- uid_set = true;
- }
+ /* Stay on the same filesystem */
+ if (s.st_dev != rootdev)
+ continue;
- if (group && !streq(group, "-")) {
- unsigned long lu;
- struct group *g;
-
- if (streq(group, "root") || streq(group, "0"))
- gid = 0;
- else if (safe_atolu(group, &lu) >= 0)
- gid = (gid_t) lu;
- else if ((g = getgrnam(group)))
- gid = g->gr_gid;
- else {
- log_error("[%s:%u] Unknown group '%s'.", fname, line, group);
+ /* Do not delete read-only files owned by root */
+ if (s.st_uid == 0 && !(s.st_mode & S_IWUSR))
+ continue;
+
+ free(sub_path);
+ sub_path = NULL;
+
+ if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) {
+ log_error("Out of memory");
+ r = -ENOMEM;
goto finish;
}
- gid_set = true;
+ /* Is there an item configured for this path? */
+ if (hashmap_get(items, sub_path))
+ continue;
+
+ if (find_glob(globs, sub_path))
+ continue;
+
+ if (S_ISDIR(s.st_mode)) {
+
+ if (mountpoint &&
+ streq(dent->d_name, "lost+found") &&
+ s.st_uid == 0)
+ continue;
+
+ if (maxdepth <= 0)
+ log_warning("Reached max depth on %s.", sub_path);
+ else {
+ DIR *sub_dir;
+ int q;
+
+ sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW);
+ if (sub_dir == NULL) {
+ if (errno != ENOENT) {
+ log_error("opendir(%s/%s) failed: %m", p, dent->d_name);
+ r = -errno;
+ }
+
+ continue;
+ }
+
+ q = dir_cleanup(sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1);
+ closedir(sub_dir);
+
+ if (q < 0)
+ r = q;
+ }
+
+ /* Ignore ctime, we change it when deleting */
+ age = MAX(timespec_load(&s.st_mtim),
+ timespec_load(&s.st_atim));
+ if (age >= cutoff)
+ continue;
+
+ log_debug("rmdir '%s'\n", sub_path);
+
+ if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
+ if (errno != ENOENT && errno != ENOTEMPTY) {
+ log_error("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)
+ 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"))
+ 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));
+
+ if (age >= cutoff)
+ continue;
+
+ log_debug("unlink '%s'\n", sub_path);
+
+ if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
+ if (errno != ENOENT) {
+ log_error("unlink(%s): %m", sub_path);
+ r = -errno;
+ }
+ }
+
+ deleted = true;
+ }
+ }
+
+finish:
+ if (deleted) {
+ /* Restore original directory timestamps */
+ times[0] = ds->st_atim;
+ times[1] = ds->st_mtim;
+
+ if (futimens(dirfd(d), times) < 0)
+ log_error("utimensat(%s): %m", p);
}
- if (n < 3)
- mode = type == 'f' ? 0644 : 0755;
+ free(sub_path);
+
+ return r;
+}
+
+static int clean_item(Item *i) {
+ DIR *d;
+ struct stat s, ps;
+ bool mountpoint;
+ int r;
+ usec_t cutoff, n;
+
+ assert(i);
+
+ if (i->type != CREATE_DIRECTORY &&
+ i->type != TRUNCATE_DIRECTORY &&
+ i->type != IGNORE_PATH)
+ return 0;
+
+ if (!i->age_set || i->age <= 0)
+ return 0;
+
+ n = now(CLOCK_REALTIME);
+ if (n < i->age)
+ return 0;
+
+ cutoff = n - i->age;
+
+ d = opendir(i->path);
+ if (!d) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_error("Failed to open directory %s: %m", i->path);
+ return -errno;
+ }
+
+ if (fstat(dirfd(d), &s) < 0) {
+ log_error("stat(%s) failed: %m", i->path);
+ r = -errno;
+ goto finish;
+ }
+
+ if (!S_ISDIR(s.st_mode)) {
+ log_error("%s is not a directory.", i->path);
+ r = -ENOTDIR;
+ goto finish;
+ }
+
+ if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) {
+ log_error("stat(%s/..) failed: %m", i->path);
+ r = -errno;
+ goto finish;
+ }
+
+ mountpoint = s.st_dev != ps.st_dev ||
+ (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino);
+
+ r = dir_cleanup(i->path, d, &s, cutoff, s.st_dev, mountpoint, MAX_DEPTH);
+
+finish:
+ if (d)
+ closedir(d);
+
+ return r;
+}
+
+static int create_item(Item *i) {
+ int fd = -1, r;
+ mode_t u;
+ struct stat st;
+
+ assert(i);
- if (type == 'f') {
- mode_t u;
- struct stat st;
+ switch (i->type) {
+
+ case IGNORE_PATH:
+ case REMOVE_PATH:
+ case RECURSIVE_REMOVE_PATH:
+ return 0;
+
+ case CREATE_FILE:
+ case TRUNCATE_FILE:
u = umask(0);
- fd = open(path, O_CREAT|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, mode);
+ fd = open(i->path, O_CREAT|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW|
+ (i->type == TRUNCATE_FILE ? O_TRUNC : 0), i->mode);
umask(u);
if (fd < 0) {
- log_error("Failed to create file %s: %m", path);
+ log_error("Failed to create file %s: %m", i->path);
+ r = -errno;
goto finish;
}
if (fstat(fd, &st) < 0) {
- log_error("stat(%s) failed: %m", path);
+ log_error("stat(%s) failed: %m", i->path);
+ r = -errno;
goto finish;
}
if (!S_ISREG(st.st_mode)) {
- log_error("%s is not a file.", path);
- goto finish;
- }
-
- if (fchmod(fd, mode) < 0) {
- log_error("chmod(%s) failed: %m", path);
+ log_error("%s is not a file.", i->path);
+ r = -EEXIST;
goto finish;
}
- if (uid_set || gid_set) {
+ if (i->mode_set)
+ if (fchmod(fd, i->mode) < 0) {
+ log_error("chmod(%s) failed: %m", i->path);
+ r = -errno;
+ goto finish;
+ }
+ if (i->uid_set || i->gid_set)
if (fchown(fd,
- uid_set ? uid : (uid_t) -1,
- gid_set ? gid : (gid_t) -1) < 0) {
- log_error("chown(%s) failed: %m", 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;
}
- }
- } else if (type == 'd') {
- mode_t u;
- int r;
- struct stat st;
+ break;
+
+ case TRUNCATE_DIRECTORY:
+ case CREATE_DIRECTORY:
u = umask(0);
- r = mkdir(path, mode);
+ mkdir_parents(i->path, 0755);
+ r = mkdir(i->path, i->mode);
umask(u);
if (r < 0 && errno != EEXIST) {
- log_error("Failed to create directory %s: %m", path);
+ log_error("Failed to create directory %s: %m", i->path);
+ r = -errno;
goto finish;
}
- if (stat(path, &st) < 0) {
- log_error("stat(%s) failed: %m", path);
+ if (stat(i->path, &st) < 0) {
+ log_error("stat(%s) failed: %m", i->path);
+ r = -errno;
goto finish;
}
if (!S_ISDIR(st.st_mode)) {
- log_error("%s is not a directory.", path);
+ log_error("%s is not a directory.", i->path);
+ r = -EEXIST;
goto finish;
}
- if (chmod(path, mode) < 0) {
- log_error("chmod(%s) failed: %m", path);
+ 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;
+
+ 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 (uid_set || gid_set) {
+ 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 (chown(path,
- uid_set ? uid : (uid_t) -1,
- gid_set ? gid : (gid_t) -1) < 0) {
- log_error("chown(%s) failed: %m", path);
+ 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;
}
- label_fix(path);
+ if ((r = label_fix(i->path, false)) < 0)
+ goto finish;
- log_debug("%s created successfully.", path);
+ log_debug("%s created successfully.", i->path);
finish:
- free(path);
- free(user);
- free(group);
-
if (fd >= 0)
close_nointr_nofail(fd);
+
+ return r;
}
-static int scandir_filter(const struct dirent *d) {
- assert(d);
+static int remove_item_instance(Item *i, const char *instance) {
+ int r;
- if (ignore_file(d->d_name))
- return 0;
+ assert(i);
- if (d->d_type != DT_REG &&
- d->d_type != DT_LNK)
- return 0;
+ switch (i->type) {
+
+ case CREATE_FILE:
+ case TRUNCATE_FILE:
+ case CREATE_DIRECTORY:
+ case CREATE_FIFO:
+ case IGNORE_PATH:
+ break;
+
+ case REMOVE_PATH:
+ if (remove(instance) < 0 && errno != ENOENT) {
+ log_error("remove(%s): %m", instance);
+ return -errno;
+ }
+
+ break;
+
+ case TRUNCATE_DIRECTORY:
+ case RECURSIVE_REMOVE_PATH:
+ if ((r = rm_rf(instance, false, i->type == RECURSIVE_REMOVE_PATH, false)) < 0 &&
+ r != -ENOENT) {
+ log_error("rm_rf(%s): %s", instance, strerror(-r));
+ return r;
+ }
+
+ break;
+ }
- return endswith(d->d_name, ".conf");
+ return 0;
}
-int main(int argc, char *argv[]) {
- struct dirent **de = NULL;
- int r = EXIT_FAILURE, n, i;
- const char *prefix = NULL;
-
- if (argc > 2) {
- log_error("This program takes no more than one argument.");
- return EXIT_FAILURE;
- } else if (argc > 1)
- prefix = argv[1];
- else
- prefix = "/";
-
- log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
- log_parse_environment();
- log_open();
+static int remove_item(Item *i) {
+ assert(i);
- label_init();
+ switch (i->type) {
- if ((n = scandir("/etc/tempfiles.d/", &de, scandir_filter, alphasort)) < 0) {
+ case CREATE_FILE:
+ case TRUNCATE_FILE:
+ case CREATE_DIRECTORY:
+ case CREATE_FIFO:
+ case IGNORE_PATH:
+ break;
- if (errno == ENOENT)
- r = EXIT_SUCCESS;
- else
- log_error("Failed to enumerate /etc/tempfiles.d/ files: %m");
+ case REMOVE_PATH:
+ case TRUNCATE_DIRECTORY:
+ case RECURSIVE_REMOVE_PATH: {
+ 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) {
+
+ if (k != GLOB_NOMATCH) {
+ if (errno != 0)
+ errno = EIO;
+
+ log_error("glob(%s) failed: %m", i->path);
+ return -errno;
+ }
+ }
+
+ STRV_FOREACH(fn, g.gl_pathv)
+ if ((k = remove_item_instance(i, *fn)) < 0)
+ r = k;
+
+ globfree(&g);
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+static int process_item(Item *i) {
+ int r, q, p;
+
+ assert(i);
+
+ 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;
+
+ if (q < 0)
+ return q;
+
+ return p;
+}
+
+static void item_free(Item *i) {
+ assert(i);
+
+ free(i->path);
+ free(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;
+ char type;
+ Hashmap *h;
+ int r;
+
+ assert(fname);
+ assert(line >= 1);
+ assert(buffer);
+
+ if (!(i = new0(Item, 1))) {
+ log_error("Out of memory");
+ return -ENOMEM;
+ }
+
+ if (sscanf(buffer,
+ "%c "
+ "%ms "
+ "%ms "
+ "%ms "
+ "%ms "
+ "%ms",
+ &type,
+ &i->path,
+ &mode,
+ &user,
+ &group,
+ &age) < 2) {
+ log_error("[%s:%u] Syntax error.", fname, line);
+ r = -EIO;
+ goto finish;
+ }
+ i->type = type;
+
+ if (i->type != CREATE_FILE &&
+ 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) {
+ log_error("[%s:%u] Unknown file type '%c'.", fname, line, i->type);
+ r = -EBADMSG;
goto finish;
}
- r = EXIT_SUCCESS;
+ if (!path_is_absolute(i->path)) {
+ log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path);
+ r = -EBADMSG;
+ goto finish;
+ }
- for (i = 0; i < n; i++) {
- int k;
- char *fn;
- FILE *f;
- unsigned j;
+ path_kill_slashes(i->path);
- k = asprintf(&fn, "/etc/tempfiles.d/%s", de[i]->d_name);
- free(de[i]);
+ if (arg_prefix && !path_startswith(i->path, arg_prefix)) {
+ r = 0;
+ goto finish;
+ }
- if (k < 0) {
- log_error("Failed to allocate file name.");
- r = EXIT_FAILURE;
- continue;
+ if (user && !streq(user, "-")) {
+ const char *u = user;
+
+ r = get_user_creds(&u, &i->uid, NULL, NULL);
+ if (r < 0) {
+ log_error("[%s:%u] Unknown user '%s'.", fname, line, user);
+ goto finish;
}
- f = fopen(fn, "re");
- free(fn);
+ i->uid_set = true;
+ }
- if (!f) {
- log_error("Failed to open %s: %m", fn);
- r = EXIT_FAILURE;
- continue;
+ if (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);
+ goto finish;
}
- j = 0;
- for (;;) {
- char line[LINE_MAX], *l;
+ i->gid_set = true;
+ }
- if (!(fgets(line, sizeof(line), f)))
- break;
+ if (mode && !streq(mode, "-")) {
+ unsigned m;
- j++;
+ if (sscanf(mode, "%o", &m) != 1) {
+ log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
+ r = -ENOENT;
+ goto finish;
+ }
- l = strstrip(line);
- if (*l == '#' || *l == 0)
- continue;
+ i->mode = m;
+ i->mode_set = true;
+ } else
+ i->mode = i->type == CREATE_DIRECTORY ? 0755 : 0644;
- process_line(de[i]->d_name, j, l, prefix);
+ if (age && !streq(age, "-")) {
+ if (parse_usec(age, &i->age) < 0) {
+ log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
+ r = -EBADMSG;
+ goto finish;
}
- if (ferror(f)) {
+ i->age_set = true;
+ }
+
+ 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;
+ }
+
+ if ((r = hashmap_put(h, i->path, i)) < 0) {
+ log_error("Failed to insert item %s: %s", i->path, strerror(-r));
+ goto finish;
+ }
+
+ i = NULL;
+ r = 0;
+
+finish:
+ free(user);
+ free(group);
+ free(mode);
+ free(age);
+
+ if (i)
+ item_free(i);
+
+ return r;
+}
+
+static int 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",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_CREATE,
+ ARG_CLEAN,
+ ARG_REMOVE,
+ ARG_PREFIX
+ };
+
+ 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 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_CREATE:
+ arg_create = true;
+ break;
+
+ case ARG_CLEAN:
+ arg_clean = true;
+ break;
+
+ case ARG_REMOVE:
+ arg_remove = true;
+ break;
+
+ case ARG_PREFIX:
+ arg_prefix = optarg;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ 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) {
+ 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[]) {
+ int r;
+ Item *i;
+ Iterator iterator;
+
+ if ((r = parse_argv(argc, argv)) <= 0)
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+
+ log_set_target(LOG_TARGET_AUTO);
+ log_parse_environment();
+ log_open();
+
+ umask(0022);
+
+ label_init();
+
+ items = hashmap_new(string_hash_func, string_compare_func);
+ globs = hashmap_new(string_hash_func, string_compare_func);
+
+ if (!items || !globs) {
+ log_error("Out of memory");
+ r = EXIT_FAILURE;
+ goto finish;
+ }
+
+ r = EXIT_SUCCESS;
+
+ if (optind < argc) {
+ int j;
+
+ for (j = optind; j < argc; j++)
+ if (read_config_file(argv[j], false) < 0)
+ r = EXIT_FAILURE;
+
+ } else {
+ char **files, **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: %m");
+ log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
+ goto finish;
}
- fclose(f);
+ STRV_FOREACH(f, files) {
+ if (read_config_file(*f, true) < 0)
+ r = EXIT_FAILURE;
+ }
+
+ strv_free(files);
}
- free(de);
+ HASHMAP_FOREACH(i, globs, iterator)
+ process_item(i);
+
+ HASHMAP_FOREACH(i, items, iterator)
+ 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