#include <sys/param.h>
#include <glob.h>
#include <fnmatch.h>
+#include <sys/capability.h>
#include "log.h"
#include "util.h"
+#include "macro.h"
#include "mkdir.h"
#include "path-util.h"
#include "strv.h"
#include "label.h"
#include "set.h"
#include "conf-files.h"
+#include "capability.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 globs */
IGNORE_PATH = 'x',
+ IGNORE_DIRECTORY_PATH = 'X',
REMOVE_PATH = 'r',
RECURSIVE_REMOVE_PATH = 'R',
RELABEL_PATH = 'z',
static const char *arg_prefix = NULL;
-static const char * const conf_file_dirs[] = {
- "/etc/tmpfiles.d",
- "/run/tmpfiles.d",
- "/usr/local/lib/tmpfiles.d",
- "/usr/lib/tmpfiles.d",
- 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 t == IGNORE_PATH || t == IGNORE_DIRECTORY_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) {
}
static void load_unix_sockets(void) {
- FILE *f = NULL;
+ FILE _cleanup_fclose_ *f = NULL;
char line[LINE_MAX];
if (unix_sockets)
}
}
- fclose(f);
return;
fail:
set_free_free(unix_sockets);
unix_sockets = NULL;
-
- if (f)
- fclose(f);
}
static bool unix_socket_alive(const char *fn) {
}
static int dir_cleanup(
+ Item *i,
const char *p,
DIR *d,
const struct stat *ds,
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;
+ char _cleanup_free_ *sub_path = NULL;
if (streq(dent->d_name, ".") ||
streq(dent->d_name, ".."))
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;
+ r = log_oom();
goto finish;
}
if (maxdepth <= 0)
log_warning("Reached max depth on %s.", sub_path);
else {
- DIR *sub_dir;
+ DIR _cleanup_closedir_ *sub_dir;
int q;
sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME);
continue;
}
- q = dir_cleanup(sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false);
- closedir(sub_dir);
+ q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false);
if (q < 0)
r = q;
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'\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;
+ 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_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(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;
+ }
- assert(i);
+ 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) {
- if (i->type != CREATE_DIRECTORY &&
- i->type != TRUNCATE_DIRECTORY &&
- i->type != IGNORE_PATH)
- return 0;
+ log_error("chown(%s) failed: %m", path);
+ return -errno;
+ }
- if (!i->age_set || i->age <= 0)
- return 0;
+ return label_fix(path, false, false);
+}
- n = now(CLOCK_REALTIME);
- if (n < i->age)
- return 0;
+static int write_one_file(Item *i, const char *path) {
+ int r, e, fd, flags;
+ struct stat st;
+ mode_t u;
- cutoff = n - i->age;
+ flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
+ i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
- d = opendir(i->path);
- if (!d) {
- if (errno == ENOENT)
+ 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;
+
+ if (fd < 0) {
+ if (i->type == WRITE_FILE && errno == ENOENT)
return 0;
- log_error("Failed to open directory %s: %m", i->path);
+ log_error("Failed to create file %s: %m", path);
return -errno;
}
- if (fstat(dirfd(d), &s) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- r = -errno;
- goto finish;
- }
+ if (i->argument) {
+ ssize_t n;
+ size_t l;
+ _cleanup_free_ char *unescaped;
- 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);
+ unescaped = cunescape(i->argument);
+ if (unescaped == NULL) {
+ close_nointr_nofail(fd);
+ return log_oom();
+ }
- r = dir_cleanup(i->path, d, &s, cutoff, s.st_dev, mountpoint, MAX_DEPTH, i->keep_first_level);
+ l = strlen(unescaped);
+ n = write(fd, unescaped, l);
-finish:
- if (d)
- closedir(d);
+ 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;
+ }
+ }
- return r;
-}
+ close_nointr_nofail(fd);
-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 (stat(path, &st) < 0) {
+ log_error("stat(%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) {
+ if (!S_ISREG(st.st_mode)) {
+ log_error("%s is not a file.", path);
+ return -EEXIST;
+ }
- log_error("chown(%s) failed: %m", path);
- return -errno;
- }
+ r = item_set_perms(i, path);
+ if (r < 0)
+ return r;
- return label_fix(path, false, false);
+ return 0;
}
static int recursive_relabel_children(Item *i, const char *path) {
- DIR *d;
+ DIR _cleanup_closedir_ *d;
int ret = 0;
/* This returns the first error we run into, but nevertheless
return errno == ENOENT ? 0 : -errno;
for (;;) {
- struct dirent buf, *de;
+ struct dirent *de;
+ union dirent_storage buf;
bool is_dir;
int r;
- char *entry_path;
+ char _cleanup_free_ *entry_path = NULL;
- r = readdir_r(d, &buf, &de);
+ r = readdir_r(d, &buf.de, &de);
if (r != 0) {
if (ret == 0)
ret = -r;
if (lstat(entry_path, &st) < 0) {
if (ret == 0 && errno != ENOENT)
ret = -errno;
- free(entry_path);
continue;
}
if (r < 0) {
if (ret == 0 && r != -ENOENT)
ret = r;
- free(entry_path);
continue;
}
if (r < 0 && ret == 0)
ret = r;
}
-
- free(entry_path);
}
- closedir(d);
-
return ret;
}
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;
-
- 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);
-
- /* 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;
- }
- }
-
- 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);
+ r = write_one_file(i, i->path);
+ if (r < 0)
+ return r;
+ break;
+ case WRITE_FILE:
+ r = glob_item(i, write_one_file);
if (r < 0)
return r;
break;
- }
case TRUNCATE_DIRECTORY:
case CREATE_DIRECTORY:
case CREATE_BLOCK_DEVICE:
case CREATE_CHAR_DEVICE: {
- mode_t file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR);
+ mode_t file_type;
+
+ if (have_effective_cap(CAP_MKNOD) == 0) {
+ /* In a container we lack CAP_MKNOD. We
+ shouldnt 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);
u = umask(0);
label_context_set(i->path, file_type);
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 CREATE_CHAR_DEVICE:
case CREATE_BLOCK_DEVICE:
case IGNORE_PATH:
+ case IGNORE_DIRECTORY_PATH:
case RELABEL_PATH:
case RECURSIVE_RELABEL_PATH:
case WRITE_FILE:
return r;
}
+static int clean_item_instance(Item *i, const char* instance) {
+ DIR _cleanup_closedir_ *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:
+ 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;
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 _cleanup_free_
+ *mode = NULL, *user = NULL, *group = NULL, *age = NULL;
char type;
Hashmap *h;
int r, n = -1;
assert(buffer);
i = new0(Item, 1);
- if (!i) {
- log_error("Out of memory");
- return -ENOMEM;
- }
+ if (!i)
+ return log_oom();
- if (sscanf(buffer,
- "%c "
- "%ms "
- "%ms "
- "%ms "
- "%ms "
- "%ms "
- "%n",
+ r = sscanf(buffer,
+ "%c %ms %ms %ms %ms %ms %n",
&type,
&i->path,
&mode,
&user,
&group,
&age,
- &n) < 2) {
+ &n);
+ if (r < 2) {
log_error("[%s:%u] Syntax error.", fname, line);
r = -EIO;
goto finish;
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:
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;
r = 0;
finish:
- free(user);
- free(group);
- free(mode);
- free(age);
-
if (i)
item_free(i);
static int read_config_file(const char *fn, bool ignore_enoent) {
FILE *f;
unsigned v = 0;
- int r = 0;
+ int r;
+ Iterator iterator;
+ Item *i;
assert(fn);
- f = fopen(fn, "re");
- if (!f) {
-
- if (ignore_enoent && errno == ENOENT)
+ r = search_and_fopen_nulstr(fn, "re", 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);
r = k;
}
- if (ferror(f)) {
- log_error("Failed to read from file %s: %m", fn);
- if (r == 0)
- r = -EIO;
- }
-
- fclose(f);
+ /* we have to determine age parameter for each entry of type X */
+ HASHMAP_FOREACH(i, globs, iterator) {
+ Iterator iter;
+ Item *j, *candidate_item = NULL;
- return r;
-}
+ if (i->type != IGNORE_DIRECTORY_PATH)
+ continue;
-static char *resolve_fragment(const char *fragment, const char **search_paths) {
- const char **p;
- char *resolved_path;
+ HASHMAP_FOREACH(j, items, iter) {
+ if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY)
+ continue;
- if (is_path(fragment))
- return strdup(fragment);
+ if (path_equal(j->path, i->path)) {
+ candidate_item = j;
+ break;
+ }
- STRV_FOREACH(p, search_paths) {
- resolved_path = strjoin(*p, "/", fragment, NULL);
- if (resolved_path == NULL) {
- log_error("Out of memory");
- return NULL;
+ 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 (access(resolved_path, F_OK) == 0)
- return resolved_path;
+ if (candidate_item) {
+ i->age = candidate_item->age;
+ i->age_set = true;
+ }
+ }
- free(resolved_path);
+ if (ferror(f)) {
+ log_error("Failed to read from file %s: %m", fn);
+ if (r == 0)
+ r = -EIO;
}
- errno = ENOENT;
- return NULL;
+ 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++) {
- char *fragment;
-
- fragment = resolve_fragment(argv[j], (const char**) conf_file_dirs);
- if (!fragment) {
- log_error("Failed to find a %s file: %m", argv[j]);
- r = EXIT_FAILURE;
- goto finish;
- }
- if (read_config_file(fragment, false) < 0)
- r = EXIT_FAILURE;
- free(fragment);
+ k = read_config_file(argv[j], false);
+ if (k < 0 && r == 0)
+ r = k;
}
} else {
- char **files, **f;
+ _cleanup_strv_free_ char **files = NULL;
+ char **f;
- r = conf_files_list_strv(&files, ".conf",
- (const char **) conf_file_dirs);
+ r = conf_files_list_nulstr(&files, ".conf", NULL, 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)
label_finish();
- return r;
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
~ianmdlvl / elogind.git / blobdiff