#include <sys/param.h>
#include <glob.h>
#include <fnmatch.h>
+#include <sys/capability.h>
#include "log.h"
#include "util.h"
+#include "macro.h"
+#include "missing.h"
#include "mkdir.h"
#include "path-util.h"
#include "strv.h"
#include "label.h"
#include "set.h"
#include "conf-files.h"
+#include "capability.h"
+#include "specifier.h"
+#include "build.h"
+#include "copy.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_FIFO = 'p',
CREATE_SYMLINK = 'L',
CREATE_CHAR_DEVICE = 'c',
CREATE_BLOCK_DEVICE = 'b',
+ COPY_FILES = 'C',
+ ADJUST_MODE = 'm',
/* These ones take globs */
+ WRITE_FILE = 'w',
IGNORE_PATH = 'x',
+ IGNORE_DIRECTORY_PATH = 'X',
REMOVE_PATH = 'r',
RECURSIVE_REMOVE_PATH = 'R',
RELABEL_PATH = 'z',
bool gid_set:1;
bool mode_set:1;
bool age_set:1;
+
+ bool keep_first_level:1;
} Item;
static Hashmap *items = NULL, *globs = NULL;
static bool arg_create = false;
static bool arg_clean = false;
static bool arg_remove = false;
-
-static const char *arg_prefix = NULL;
+static bool arg_boot = false;
+
+static char **include_prefixes = NULL;
+static char **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
+ ;
#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;
+ return IN_SET(t,
+ WRITE_FILE,
+ IGNORE_PATH,
+ IGNORE_DIRECTORY_PATH,
+ REMOVE_PATH,
+ RECURSIVE_REMOVE_PATH,
+ RELABEL_PATH,
+ RECURSIVE_RELABEL_PATH);
}
static struct Item* find_glob(Hashmap *h, const char *match) {
}
static void load_unix_sockets(void) {
- FILE *f = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
char line[LINE_MAX];
if (unix_sockets)
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;
}
- fclose(f);
return;
fail:
set_free_free(unix_sockets);
unix_sockets = NULL;
-
- if (f)
- fclose(f);
}
static bool unix_socket_alive(const char *fn) {
return true;
}
+static int dir_is_mount_point(DIR *d, const char *subdir) {
+
+ union file_handle_union h = {
+ .handle.handle_bytes = MAX_HANDLE_SZ
+ };
+
+ int mount_id_parent, mount_id;
+ int r_p, r;
+
+ r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0);
+ if (r_p < 0)
+ r_p = -errno;
+
+ h.handle.handle_bytes = MAX_HANDLE_SZ;
+ r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0);
+ if (r < 0)
+ r = -errno;
+
+ /* got no handle; make no assumptions, return error */
+ if (r_p < 0 && r < 0)
+ return r_p;
+
+ /* got both handles; if they differ, it is a mount point */
+ if (r_p >= 0 && r >= 0)
+ return mount_id_parent != mount_id;
+
+ /* got only one handle; assume different mount points if one
+ * of both queries was not supported by the filesystem */
+ if (r_p == -ENOSYS || r_p == -ENOTSUP || r == -ENOSYS || r == -ENOTSUP)
+ return true;
+
+ /* return error */
+ if (r_p < 0)
+ return r_p;
+ return r;
+}
+
static int dir_cleanup(
+ Item *i,
const char *p,
DIR *d,
const struct stat *ds,
usec_t cutoff,
dev_t rootdev,
bool mountpoint,
- int maxdepth)
-{
+ int maxdepth,
+ bool keep_this_level) {
+
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;
+ _cleanup_free_ char *sub_path = NULL;
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)
+ continue;
- if (errno != ENOENT) {
+ /* FUSE, NFS mounts, SELinux might return EACCES */
+ if (errno == EACCES)
+ log_debug("stat(%s/%s) failed: %m", p, dent->d_name);
+ else
log_error("stat(%s/%s) failed: %m", p, dent->d_name);
- r = -errno;
- }
-
+ r = -errno;
continue;
}
if (s.st_dev != rootdev)
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)
+ 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;
+ sub_path = strjoin(p, "/", dent->d_name, NULL);
+ if (!sub_path) {
+ r = log_oom();
goto finish;
}
if (maxdepth <= 0)
log_warning("Reached max depth on %s.", sub_path);
else {
- DIR *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 (!sub_dir) {
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);
-
+ q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false);
if (q < 0)
r = q;
}
+ /* Note: if you are wondering why we don't
+ * support the sticky bit for excluding
+ * directories from cleaning like we do it for
+ * other file system objects: well, the sticky
+ * bit already has a meaning for directories,
+ * so we don't want to overload that. */
+
+ if (keep_this_level)
+ continue;
+
/* 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 (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) {
+ log_debug("rmdir '%s'", 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;
+ if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
+ if (errno != ENOENT && errno != ENOTEMPTY) {
+ log_error("rmdir(%s): %m", sub_path);
+ r = -errno;
+ }
}
}
if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode))
continue;
+ /* Keep files on this level around if this is
+ * requested */
+ if (keep_this_level)
+ 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);
+ log_debug("unlink '%s'", sub_path);
if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
if (errno != ENOENT) {
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;
-
+static int item_set_perms_full(Item *i, const char *path, bool ignore_enoent) {
assert(i);
+ assert(path);
- if (i->type != CREATE_DIRECTORY &&
- i->type != TRUNCATE_DIRECTORY &&
- i->type != IGNORE_PATH)
- return 0;
+ /* not using i->path directly because it may be a glob */
+ if (i->mode_set)
+ if (chmod(path, i->mode) < 0) {
+ if (errno != ENOENT || !ignore_enoent) {
+ log_error("chmod(%s) failed: %m", path);
+ return -errno;
+ }
+ }
- if (!i->age_set || i->age <= 0)
- return 0;
+ 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) {
- n = now(CLOCK_REALTIME);
- if (n < i->age)
- return 0;
+ if (errno != ENOENT || !ignore_enoent) {
+ log_error("chown(%s) failed: %m", path);
+ return -errno;
+ }
+ }
- cutoff = n - i->age;
+ return label_fix(path, ignore_enoent, false);
+}
- d = opendir(i->path);
- if (!d) {
- if (errno == ENOENT)
- return 0;
+static int item_set_perms(Item *i, const char *path) {
+ return item_set_perms_full(i, path, false);
+}
- log_error("Failed to open directory %s: %m", i->path);
- return -errno;
- }
+static int write_one_file(Item *i, const char *path) {
+ int flags;
+ int fd = -1;
+ struct stat st;
+ int r = 0;
- if (fstat(dirfd(d), &s) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- r = -errno;
- goto finish;
- }
+ assert(i);
+ assert(path);
- if (!S_ISDIR(s.st_mode)) {
- log_error("%s is not a directory.", i->path);
- r = -ENOTDIR;
- goto finish;
- }
+ flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
+ i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
- if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) {
- log_error("stat(%s/..) failed: %m", i->path);
- r = -errno;
- goto finish;
+ RUN_WITH_UMASK(0) {
+ label_context_set(path, S_IFREG);
+ fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode);
+ label_context_clear();
}
- 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);
+ if (fd < 0) {
+ if (i->type == WRITE_FILE && errno == ENOENT)
+ return 0;
-finish:
- if (d)
- closedir(d);
+ log_error("Failed to create file %s: %m", path);
+ return -errno;
+ }
- return r;
-}
+ if (i->argument) {
+ _cleanup_free_ char *unescaped;
+ ssize_t n;
+ size_t l;
-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;
+ unescaped = cunescape(i->argument);
+ if (unescaped == NULL) {
+ safe_close(fd);
+ return log_oom();
}
- 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) {
+ l = strlen(unescaped);
+ n = write(fd, unescaped, l);
- log_error("chown(%s) failed: %m", path);
- return -errno;
+ if (n < 0 || (size_t) n < l) {
+ log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write");
+ safe_close(fd);
+ return n < 0 ? n : -EIO;
}
+ }
+
+ safe_close(fd);
- return label_fix(path, false);
+ if (stat(path, &st) < 0) {
+ log_error("stat(%s) failed: %m", path);
+ return -errno;
+ }
+
+ if (!S_ISREG(st.st_mode)) {
+ log_error("%s is not a file.", path);
+ return -EEXIST;
+ }
+
+ r = item_set_perms(i, path);
+ if (r < 0)
+ return r;
+
+ return 0;
}
static int recursive_relabel_children(Item *i, const char *path) {
- DIR *d;
+ _cleanup_closedir_ DIR *d;
int ret = 0;
/* This returns the first error we run into, but nevertheless
return errno == ENOENT ? 0 : -errno;
for (;;) {
- struct dirent buf, *de;
- bool is_dir;
+ struct dirent *de;
+ bool dir;
int r;
- char *entry_path;
+ _cleanup_free_ char *entry_path = NULL;
- r = readdir_r(d, &buf, &de);
- if (r != 0) {
+ errno = 0;
+ de = readdir(d);
+ if (!de && errno != 0) {
if (ret == 0)
- ret = -r;
+ ret = -errno;
break;
}
}
if (de->d_type == DT_UNKNOWN) {
- struct stat st;
-
- if (lstat(entry_path, &st) < 0) {
+ r = is_dir(entry_path);
+ if (r < 0) {
if (ret == 0 && errno != ENOENT)
ret = -errno;
- free(entry_path);
continue;
}
- is_dir = S_ISDIR(st.st_mode);
+ dir = r;
} else
- is_dir = de->d_type == DT_DIR;
+ 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) {
+ if (dir) {
r = recursive_relabel_children(i, entry_path);
if (r < 0 && ret == 0)
ret = r;
}
-
- free(entry_path);
}
- closedir(d);
-
return ret;
}
static int glob_item(Item *i, int (*action)(Item *, const char *)) {
int r = 0, k;
- glob_t g;
+ _cleanup_globfree_ 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, NULL, &g);
+ if (k != 0)
if (k != GLOB_NOMATCH) {
- if (errno != 0)
+ 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)
+ STRV_FOREACH(fn, g.gl_pathv) {
+ k = action(i, *fn);
+ if (k < 0)
r = k;
+ }
- globfree(&g);
return r;
}
static int create_item(Item *i) {
- int r, e;
- mode_t u;
struct stat st;
+ int r = 0;
assert(i);
switch (i->type) {
case IGNORE_PATH:
+ case IGNORE_DIRECTORY_PATH:
case REMOVE_PATH:
case RECURSIVE_REMOVE_PATH:
return 0;
case CREATE_FILE:
case TRUNCATE_FILE:
- 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);
- label_context_set(i->path, S_IFREG);
- fd = open(i->path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode);
- e = errno;
- label_context_clear();
- umask(u);
- errno = e;
-
- if (fd < 0) {
- if (i->type == WRITE_FILE && errno == ENOENT)
- break;
+ r = write_one_file(i, i->path);
+ if (r < 0)
+ return r;
+ break;
- log_error("Failed to create file %s: %m", i->path);
- return -errno;
+ case COPY_FILES:
+ r = copy_tree(i->argument, i->path);
+ if (r < 0) {
+ log_error("Failed to copy files: %s", strerror(-r));
+ return r;
}
- 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);
-
- /* It's OK if we don't write the trailing
- * newline, hence we check for l, instead of
- * l+1 here. Files in /sys often refuse
- * writing of the trailing newline. */
- if (n < 0 || (size_t) n < l) {
- log_error("Failed to write file %s: %s", i->path, n < 0 ? strerror(-n) : "Short write");
- close_nointr_nofail(fd);
- return n < 0 ? n : -EIO;
- }
- }
+ r = item_set_perms(i, i->path);
+ if (r < 0)
+ return r;
- close_nointr_nofail(fd);
+ break;
- if (stat(i->path, &st) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- return -errno;
- }
+ case WRITE_FILE:
+ r = glob_item(i, write_one_file);
+ if (r < 0)
+ return r;
- if (!S_ISREG(st.st_mode)) {
- log_error("%s is not a file.", i->path);
- return -EEXIST;
- }
+ break;
- r = item_set_perms(i, i->path);
+ case ADJUST_MODE:
+ r = item_set_perms_full(i, i->path, true);
if (r < 0)
return r;
break;
- }
case TRUNCATE_DIRECTORY:
case CREATE_DIRECTORY:
- 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);
+ r = mkdir(i->path, i->mode);
+ }
if (r < 0 && errno != EEXIST) {
log_error("Failed to create directory %s: %m", i->path);
case CREATE_FIFO:
- u = umask(0);
- r = mkfifo(i->path, i->mode);
- umask(u);
+ RUN_WITH_UMASK(0000) {
+ r = mkfifo(i->path, i->mode);
+ }
if (r < 0 && errno != EEXIST) {
log_error("Failed to create fifo %s: %m", i->path);
break;
case CREATE_SYMLINK: {
- char *x;
+ _cleanup_free_ char *x = NULL;
label_context_set(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);
}
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: {
+ mode_t file_type;
- u = umask(0);
- label_context_set(i->path, CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR);
- r = mknod(i->path, i->mode | (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR), i->major_minor);
- e = errno;
- label_context_clear();
- umask(u);
- errno = e;
+ if (have_effective_cap(CAP_MKNOD) == 0) {
+ /* In a container we lack CAP_MKNOD. We
+ shouldn't attempt to create the device node in
+ that case to avoid noise, and we don't support
+ virtualized devices in containers anyway. */
+
+ log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path);
+ return 0;
+ }
+
+ file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR);
+
+ RUN_WITH_UMASK(0000) {
+ label_context_set(i->path, file_type);
+ r = mknod(i->path, i->mode | file_type, i->major_minor);
+ label_context_clear();
+ }
if (r < 0 && errno != EEXIST) {
log_error("Failed to create device node %s: %m", i->path);
return -errno;
}
- if (i->type == CREATE_BLOCK_DEVICE ? !S_ISBLK(st.st_mode) : !S_ISCHR(st.st_mode)) {
+ if ((st.st_mode & S_IFMT) != file_type) {
log_error("%s is not a device node.", i->path);
return -EEXIST;
}
r = glob_item(i, item_set_perms);
if (r < 0)
- return 0;
+ return r;
break;
case RECURSIVE_RELABEL_PATH:
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:
+ case COPY_FILES:
+ case ADJUST_MODE:
break;
case REMOVE_PATH:
case TRUNCATE_DIRECTORY:
case RECURSIVE_REMOVE_PATH:
- r = rm_rf(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
+ /* FIXME: we probably should use dir_cleanup() here
+ * instead of rm_rf() so that 'x' is honoured. */
+ 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;
case CREATE_CHAR_DEVICE:
case CREATE_BLOCK_DEVICE:
case IGNORE_PATH:
+ case IGNORE_DIRECTORY_PATH:
case RELABEL_PATH:
case RECURSIVE_RELABEL_PATH:
case WRITE_FILE:
+ case COPY_FILES:
+ case ADJUST_MODE:
break;
case REMOVE_PATH:
return r;
}
+static int clean_item_instance(Item *i, const char* instance) {
+ _cleanup_closedir_ DIR *d = NULL;
+ struct stat s, ps;
+ bool mountpoint;
+ int r;
+ usec_t cutoff, n;
+
+ assert(i);
+
+ if (!i->age_set)
+ return 0;
+
+ n = now(CLOCK_REALTIME);
+ if (n < i->age)
+ return 0;
+
+ cutoff = n - i->age;
+
+ d = opendir(instance);
+ if (!d) {
+ if (errno == ENOENT || errno == ENOTDIR)
+ 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);
+ return -errno;
+ }
+
+ 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;
+ }
+
+ 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;
+}
+
+static int clean_item(Item *i) {
+ int r = 0;
+
+ assert(i);
+
+ switch (i->type) {
+ case CREATE_DIRECTORY:
+ 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);
+ break;
+ default:
+ break;
+ }
+
+ return r;
+}
+
static int process_item(Item *i) {
int r, q, p;
free(i);
}
+DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free);
+
static bool item_equal(Item *a, Item *b) {
assert(a);
assert(b);
if ((a->type == CREATE_FILE ||
a->type == TRUNCATE_FILE ||
a->type == WRITE_FILE ||
- a->type == CREATE_SYMLINK) &&
+ a->type == CREATE_SYMLINK ||
+ a->type == COPY_FILES) &&
!streq_ptr(a->argument, b->argument))
return false;
return true;
}
+static bool should_include_path(const char *path) {
+ char **prefix;
+
+ STRV_FOREACH(prefix, exclude_prefixes) {
+ if (path_startswith(path, *prefix))
+ return false;
+ }
+
+ STRV_FOREACH(prefix, include_prefixes) {
+ if (path_startswith(path, *prefix))
+ return true;
+ }
+
+ /* no matches, so we should include this path only if we
+ * have no whitelist at all */
+ return strv_length(include_prefixes) == 0;
+}
+
static int parse_line(const char *fname, unsigned line, const char *buffer) {
- Item *i, *existing;
- char *mode = NULL, *user = NULL, *group = NULL, *age = NULL;
+
+ static const Specifier specifier_table[] = {
+ { 'm', specifier_machine_id, NULL },
+ { 'b', specifier_boot_id, NULL },
+ { 'H', specifier_host_name, NULL },
+ { 'v', specifier_kernel_release, NULL },
+ {}
+ };
+
+ _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
+ _cleanup_(item_freep) Item *i = NULL;
+ Item *existing;
char type;
Hashmap *h;
int r, n = -1;
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,
+ r = sscanf(buffer,
+ "%ms %ms %ms %ms %ms %ms %n",
+ &action,
+ &path,
&mode,
&user,
&group,
&age,
- &n) < 2) {
+ &n);
+ if (r < 2) {
log_error("[%s:%u] Syntax error.", fname, line);
- r = -EIO;
- goto finish;
+ return -EIO;
+ }
+
+ if (strlen(action) > 2 || (strlen(action) > 1 && action[1] != '!')) {
+ log_error("[%s:%u] Unknown modifier '%s'", fname, line, action);
+ return -EINVAL;
+ } else if (strlen(action) > 1 && !arg_boot)
+ return 0;
+
+ type = action[0];
+
+ i = new0(Item, 1);
+ if (!i)
+ return log_oom();
+
+ 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 (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;
- }
+ if (!i->argument)
+ return log_oom();
}
}
case TRUNCATE_DIRECTORY:
case CREATE_FIFO:
case IGNORE_PATH:
+ case IGNORE_DIRECTORY_PATH:
case REMOVE_PATH:
case RECURSIVE_REMOVE_PATH:
case RELABEL_PATH:
case RECURSIVE_RELABEL_PATH:
+ case ADJUST_MODE:
break;
case CREATE_SYMLINK:
if (!i->argument) {
log_error("[%s:%u] Symlink file requires argument.", fname, line);
- r = -EBADMSG;
- goto finish;
+ return -EBADMSG;
}
+
break;
case WRITE_FILE:
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) {
+ log_error("[%s:%u] Copy files requires argument.", fname, line);
+ return -EBADMSG;
+ }
+
+ if (!path_is_absolute(i->argument)) {
+ log_error("[%s:%u] Source path is not absolute.", fname, line);
+ return -EBADMSG;
+ }
+
+ path_kill_slashes(i->argument);
+ break;
+
case CREATE_CHAR_DEVICE:
case CREATE_BLOCK_DEVICE: {
unsigned major, minor;
if (!i->argument) {
log_error("[%s:%u] Device file requires argument.", fname, line);
- 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;
+ return -EBADMSG;
}
i->major_minor = makedev(major, minor);
default:
log_error("[%s:%u] Unknown file type '%c'.", fname, line, type);
- r = -EBADMSG;
- goto finish;
+ 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;
+ return -EBADMSG;
}
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);
+ 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;
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;
if (sscanf(mode, "%o", &m) != 1) {
log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode);
- r = -ENOENT;
- goto finish;
+ return -ENOENT;
}
i->mode = m;
i->type == TRUNCATE_DIRECTORY ? 0755 : 0644;
if (age && !streq(age, "-")) {
- if (parse_usec(age, &i->age) < 0) {
+ const char *a = age;
+
+ if (*a == '~') {
+ i->keep_first_level = true;
+ a++;
+ }
+
+ if (parse_sec(a, &i->age) < 0) {
log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
- r = -EBADMSG;
- goto finish;
+ return -EBADMSG;
}
i->age_set = true;
if (!item_equal(existing, i))
log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path);
- r = 0;
- goto finish;
+ return 0;
}
r = hashmap_put(h, i->path, i);
if (r < 0) {
log_error("Failed to insert item %s: %s", i->path, strerror(-r));
- goto finish;
+ return r;
}
- i = NULL;
- r = 0;
-
-finish:
- free(user);
- free(group);
- free(mode);
- free(age);
-
- if (i)
- item_free(i);
+ i = NULL; /* avoid cleanup */
- return r;
+ return 0;
}
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",
+ " -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 that apply to paths with the specified prefix\n"
+ " --exclude-prefix=PATH Ignore rules that apply to paths 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;
switch (c) {
case 'h':
- help();
+ return help();
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
return 0;
case ARG_CREATE:
arg_remove = true;
break;
+ case ARG_BOOT:
+ arg_boot = true;
+ break;
+
case ARG_PREFIX:
- arg_prefix = optarg;
+ if (strv_push(&include_prefixes, optarg) < 0)
+ return log_oom();
+ break;
+
+ case ARG_EXCLUDE_PREFIX:
+ if (strv_push(&exclude_prefixes, optarg) < 0)
+ return log_oom();
+ break;
+
+ case 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");
}
}
}
static int read_config_file(const char *fn, bool ignore_enoent) {
- FILE *f;
+ _cleanup_fclose_ FILE *f = NULL;
+ char line[LINE_MAX];
+ Iterator iterator;
unsigned v = 0;
- int r = 0;
+ Item *i;
+ int r;
assert(fn);
- f = fopen(fn, "re");
- if (!f) {
-
- if (ignore_enoent && errno == ENOENT)
+ r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f);
+ if (r < 0) {
+ if (ignore_enoent && r == -ENOENT)
return 0;
- log_error("Failed to open %s: %m", fn);
- return -errno;
+ log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r));
+ return r;
}
- 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 */
+ HASHMAP_FOREACH(i, globs, iterator) {
+ Iterator iter;
+ Item *j, *candidate_item = NULL;
+
+ if (i->type != IGNORE_DIRECTORY_PATH)
+ continue;
+
+ HASHMAP_FOREACH(j, items, iter) {
+ if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY)
+ continue;
+
+ if (path_equal(j->path, i->path)) {
+ candidate_item = j;
+ break;
+ }
+
+ if ((!candidate_item && path_startswith(i->path, j->path)) ||
+ (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0)))
+ candidate_item = j;
+ }
+
+ if (candidate_item) {
+ i->age = candidate_item->age;
+ i->age_set = true;
+ }
}
if (ferror(f)) {
r = -EIO;
}
- fclose(f);
-
return r;
}
int main(int argc, char *argv[]) {
- int r;
+ int r, k;
Item *i;
Iterator iterator;
globs = hashmap_new(string_hash_func, string_compare_func);
if (!items || !globs) {
- log_error("Out of memory");
- r = EXIT_FAILURE;
+ r = log_oom();
goto finish;
}
- r = EXIT_SUCCESS;
+ r = 0;
if (optind < argc) {
int j;
- for (j = optind; j < argc; j++)
- if (read_config_file(argv[j], false) < 0)
- r = EXIT_FAILURE;
+ for (j = optind; j < argc; j++) {
+ k = read_config_file(argv[j], false);
+ if (k < 0 && r == 0)
+ r = k;
+ }
} 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);
+ _cleanup_strv_free_ char **files = NULL;
+ char **f;
+
+ r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs);
if (r < 0) {
log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
- r = EXIT_FAILURE;
goto finish;
}
STRV_FOREACH(f, files) {
- if (read_config_file(*f, true) < 0)
- r = EXIT_FAILURE;
+ k = read_config_file(*f, true);
+ if (k < 0 && r == 0)
+ r = k;
}
-
- strv_free(files);
}
HASHMAP_FOREACH(i, globs, iterator)
hashmap_free(items);
hashmap_free(globs);
+ free(include_prefixes);
+ free(exclude_prefixes);
+ free(arg_root);
+
set_free_free(unix_sockets);
label_finish();
- return r;
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
~ianmdlvl / elogind.git / blobdiff