+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering, Kay Sievers
-
- 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 <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <limits.h>
-#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 "mkdir.h"
-#include "strv.h"
-#include "label.h"
-#include "set.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',
- WRITE_FILE = 'w',
- CREATE_DIRECTORY = 'd',
- TRUNCATE_DIRECTORY = 'D',
- CREATE_FIFO = 'p',
- CREATE_SYMLINK = 'L',
- CREATE_CHAR_DEVICE = 'c',
- CREATE_BLOCK_DEVICE = 'b',
-
- /* These ones take globs */
- IGNORE_PATH = 'x',
- REMOVE_PATH = 'r',
- RECURSIVE_REMOVE_PATH = 'R',
- RELABEL_PATH = 'z',
- RECURSIVE_RELABEL_PATH = 'Z'
-} ItemType;
-
-typedef struct Item {
- ItemType type;
-
- char *path;
- char *argument;
- uid_t uid;
- gid_t gid;
- mode_t mode;
- usec_t age;
-
- dev_t major_minor;
-
- bool uid_set:1;
- bool gid_set:1;
- bool mode_set:1;
- bool age_set:1;
-} 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(ItemType t) {
- return t == IGNORE_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH || t == RELABEL_PATH || t == RECURSIVE_RELABEL_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. */
-
- unix_sockets = set_new(string_hash_func, string_compare_func);
- 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_put(unix_sockets, s);
- if (k < 0) {
- free(s);
-
- if (k != -EEXIST)
- goto fail;
- }
- }
-
- fclose(f);
- 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,
- 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;
- }
-
- /* Stay on the same filesystem */
- if (s.st_dev != rootdev)
- continue;
-
- /* 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;
- }
-
- /* 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|O_NOATIME);
- 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);
- }
-
- 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 item_set_perms(Item *i, const char *path) {
- /* 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->uid_set || i->gid_set)
- if (chown(path,
- i->uid_set ? i->uid : (uid_t) -1,
- i->gid_set ? i->gid : (gid_t) -1) < 0) {
-
- log_error("chown(%s) failed: %m", path);
- return -errno;
- }
-
- return label_fix(path, false);
-}
-
-static int recursive_relabel_children(Item *i, const char *path) {
- DIR *d;
- int ret = 0;
-
- /* This returns the first error we run into, but nevertheless
- * tries to go on */
-
- d = opendir(path);
- if (!d)
- return errno == ENOENT ? 0 : -errno;
-
- for (;;) {
- struct dirent buf, *de;
- bool is_dir;
- int r;
- char *entry_path;
-
- r = readdir_r(d, &buf, &de);
- if (r != 0) {
- if (ret == 0)
- ret = -r;
- break;
- }
-
- if (!de)
- break;
-
- if (streq(de->d_name, ".") || streq(de->d_name, ".."))
- continue;
-
- if (asprintf(&entry_path, "%s/%s", path, de->d_name) < 0) {
- if (ret == 0)
- ret = -ENOMEM;
- continue;
- }
-
- if (de->d_type == DT_UNKNOWN) {
- struct stat st;
-
- if (lstat(entry_path, &st) < 0) {
- if (ret == 0 && errno != ENOENT)
- ret = -errno;
- free(entry_path);
- continue;
- }
-
- is_dir = S_ISDIR(st.st_mode);
-
- } else
- is_dir = de->d_type == DT_DIR;
-
- r = item_set_perms(i, entry_path);
- if (r < 0) {
- if (ret == 0 && r != -ENOENT)
- ret = r;
- free(entry_path);
- continue;
- }
-
- if (is_dir) {
- r = recursive_relabel_children(i, entry_path);
- if (r < 0 && ret == 0)
- ret = r;
- }
-
- free(entry_path);
- }
-
- closedir(d);
-
- 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 *)) {
- 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 = action(i, *fn)) < 0)
- r = k;
-
- globfree(&g);
- return r;
-}
-
-static int create_item(Item *i) {
- int r;
- mode_t u;
- struct stat st;
-
- assert(i);
-
- switch (i->type) {
-
- case IGNORE_PATH:
- case REMOVE_PATH:
- case RECURSIVE_REMOVE_PATH:
- return 0;
-
- case CREATE_FILE:
- case TRUNCATE_FILE:
- case WRITE_FILE: {
- int fd, flags;
-
- flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
- i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
-
- u = umask(0);
- fd = open(i->path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode);
- umask(u);
-
- if (fd < 0) {
- if (i->type == WRITE_FILE && errno == ENOENT)
- break;
-
- log_error("Failed to create file %s: %m", i->path);
- return -errno;
- }
-
- if (i->argument) {
- ssize_t n;
- size_t l;
- struct iovec iovec[2];
- static const char new_line = '\n';
-
- l = strlen(i->argument);
-
- zero(iovec);
- iovec[0].iov_base = i->argument;
- iovec[0].iov_len = l;
-
- iovec[1].iov_base = (void*) &new_line;
- iovec[1].iov_len = 1;
-
- n = writev(fd, iovec, 2);
- if (n < 0 || (size_t) n != l+1) {
- log_error("Failed to write file %s: %s", i->path, n < 0 ? strerror(-n) : "Short");
- close_nointr_nofail(fd);
- return n < 0 ? n : -EIO;
- }
- }
-
- close_nointr_nofail(fd);
-
- if (stat(i->path, &st) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- return -errno;
- }
-
- if (!S_ISREG(st.st_mode)) {
- log_error("%s is not a file.", i->path);
- return -EEXIST;
- }
-
- r = item_set_perms(i, i->path);
- if (r < 0)
- return r;
-
- break;
- }
-
- case TRUNCATE_DIRECTORY:
- case CREATE_DIRECTORY:
-
- u = umask(0);
- 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", i->path);
- return -errno;
- }
-
- if (stat(i->path, &st) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- return -errno;
- }
-
- if (!S_ISDIR(st.st_mode)) {
- log_error("%s is not a directory.", i->path);
- return -EEXIST;
- }
-
- r = item_set_perms(i, i->path);
- if (r < 0)
- return r;
-
- 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);
- return -errno;
- }
-
- if (stat(i->path, &st) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- return -errno;
- }
-
- if (!S_ISFIFO(st.st_mode)) {
- log_error("%s is not a fifo.", i->path);
- return -EEXIST;
- }
-
- r = item_set_perms(i, i->path);
- if (r < 0)
- return r;
-
- break;
-
- case CREATE_SYMLINK: {
- char *x;
-
- r = symlink(i->argument, i->path);
- if (r < 0 && errno != EEXIST) {
- log_error("symlink(%s, %s) failed: %m", i->argument, i->path);
- return -errno;
- }
-
- r = readlink_malloc(i->path, &x);
- if (r < 0) {
- log_error("readlink(%s) failed: %s", i->path, strerror(-r));
- return -errno;
- }
-
- if (!streq(i->argument, x)) {
- free(x);
- log_error("%s is not the right symlinks.", i->path);
- return -EEXIST;
- }
-
- free(x);
- break;
- }
-
- case CREATE_BLOCK_DEVICE:
- case CREATE_CHAR_DEVICE: {
-
- u = umask(0);
- r = mknod(i->path, i->mode | (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR), i->major_minor);
- umask(u);
-
- if (r < 0 && errno != EEXIST) {
- log_error("Failed to create device node %s: %m", i->path);
- return -errno;
- }
-
- if (stat(i->path, &st) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- return -errno;
- }
-
- if (i->type == CREATE_BLOCK_DEVICE ? !S_ISBLK(st.st_mode) : !S_ISCHR(st.st_mode)) {
- log_error("%s is not a device node.", i->path);
- return -EEXIST;
- }
-
- r = item_set_perms(i, i->path);
- if (r < 0)
- return r;
-
- break;
- }
-
- case RELABEL_PATH:
-
- r = glob_item(i, item_set_perms);
- if (r < 0)
- return 0;
- break;
-
- case RECURSIVE_RELABEL_PATH:
-
- r = glob_item(i, recursive_relabel);
- if (r < 0)
- return r;
- }
-
- log_debug("%s created successfully.", i->path);
-
- return 0;
-}
-
-static int remove_item_instance(Item *i, const char *instance) {
- int r;
-
- assert(i);
-
- 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 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;
- }
-
- break;
-
- case TRUNCATE_DIRECTORY:
- case RECURSIVE_REMOVE_PATH:
- r = rm_rf(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
- if (r < 0 && r != -ENOENT) {
- log_error("rm_rf(%s): %s", instance, strerror(-r));
- return r;
- }
-
- break;
- }
-
- return 0;
-}
-
-static int remove_item(Item *i) {
- int r = 0;
-
- assert(i);
-
- switch (i->type) {
-
- case CREATE_FILE:
- case TRUNCATE_FILE:
- case CREATE_DIRECTORY:
- case CREATE_FIFO:
- case CREATE_SYMLINK:
- case CREATE_CHAR_DEVICE:
- case CREATE_BLOCK_DEVICE:
- case IGNORE_PATH:
- case RELABEL_PATH:
- case RECURSIVE_RELABEL_PATH:
- case WRITE_FILE:
- break;
-
- case REMOVE_PATH:
- case TRUNCATE_DIRECTORY:
- case RECURSIVE_REMOVE_PATH:
- r = glob_item(i, remove_item_instance);
- break;
- }
-
- return r;
-}
-
-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->argument);
- 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;
-
- 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;
-
- if ((a->type == CREATE_CHAR_DEVICE ||
- a->type == CREATE_BLOCK_DEVICE) &&
- a->major_minor != b->major_minor)
- 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, n = -1;
-
- assert(fname);
- assert(line >= 1);
- assert(buffer);
-
- i = new0(Item, 1);
- if (!i) {
- log_error("Out of memory");
- return -ENOMEM;
- }
-
- if (sscanf(buffer,
- "%c "
- "%ms "
- "%ms "
- "%ms "
- "%ms "
- "%ms "
- "%n",
- &type,
- &i->path,
- &mode,
- &user,
- &group,
- &age,
- &n) < 2) {
- log_error("[%s:%u] Syntax error.", fname, line);
- r = -EIO;
- goto finish;
- }
-
- 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) {
- log_error("Out of memory");
- return -ENOMEM;
- }
- }
- }
-
- switch(type) {
-
- case CREATE_FILE:
- case TRUNCATE_FILE:
- case CREATE_DIRECTORY:
- case TRUNCATE_DIRECTORY:
- case CREATE_FIFO:
- case IGNORE_PATH:
- case REMOVE_PATH:
- case RECURSIVE_REMOVE_PATH:
- 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;
- }
- break;
-
- case WRITE_FILE:
- if (!i->argument) {
- log_error("[%s:%u] Write file requires argument.", fname, line);
- r = -EBADMSG;
- goto finish;
- }
- 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);
- 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);
- r = -EBADMSG;
- goto finish;
- }
-
- i->major_minor = makedev(major, minor);
- break;
- }
-
- default:
- log_error("[%s:%u] Unknown file type '%c'.", fname, line, type);
- r = -EBADMSG;
- goto finish;
- }
-
- 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;
- }
-
- path_kill_slashes(i->path);
-
- if (arg_prefix && !path_startswith(i->path, arg_prefix)) {
- r = 0;
- goto finish;
- }
-
- 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;
- }
-
- i->uid_set = true;
- }
-
- 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;
- }
-
- i->gid_set = true;
- }
-
- if (mode && !streq(mode, "-")) {
- unsigned m;
-
- if (sscanf(mode, "%o", &m) != 1) {
- log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
- r = -ENOENT;
- goto finish;
- }
-
- i->mode = m;
- i->mode_set = true;
- } else
- i->mode =
- i->type == CREATE_DIRECTORY ||
- i->type == TRUNCATE_DIRECTORY ? 0755 : 0644;
-
- 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;
- }
-
- i->age_set = true;
- }
-
- h = needs_glob(i->type) ? globs : items;
-
- existing = hashmap_get(h, i->path);
- if (existing) {
-
- /* 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;
- }
-
- 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);
-
- f = fopen(fn, "re");
- if (!f) {
-
- 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;
-
- r = parse_argv(argc, argv);
- if (r <= 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",
- "/etc/tmpfiles.d",
- "/run/tmpfiles.d",
- "/usr/local/lib/tmpfiles.d",
- "/usr/lib/tmpfiles.d",
- NULL);
- if (r < 0) {
- r = EXIT_FAILURE;
- log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
- goto finish;
- }
-
- STRV_FOREACH(f, files) {
- if (read_config_file(*f, true) < 0)
- r = EXIT_FAILURE;
- }
-
- strv_free(files);
- }
-
- 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