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-rw-r--r--src/tmpfiles/tmpfiles.c39
1 files changed, 32 insertions, 7 deletions
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index 6e0c093a82..841d163523 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -89,6 +89,8 @@ typedef struct Item {
bool gid_set:1;
bool mode_set:1;
bool age_set:1;
+
+ bool keep_first_level:1;
} Item;
static Hashmap *items = NULL, *globs = NULL;
@@ -100,7 +102,7 @@ static bool arg_remove = false;
static const char *arg_prefix = NULL;
-static const char *conf_file_dirs[] = {
+static const char * const conf_file_dirs[] = {
"/etc/tmpfiles.d",
"/run/tmpfiles.d",
"/usr/local/lib/tmpfiles.d",
@@ -216,7 +218,8 @@ static int dir_cleanup(
usec_t cutoff,
dev_t rootdev,
bool mountpoint,
- int maxdepth)
+ int maxdepth,
+ bool keep_this_level)
{
struct dirent *dent;
struct timespec times[2];
@@ -289,13 +292,23 @@ static int dir_cleanup(
continue;
}
- q = dir_cleanup(sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1);
+ q = dir_cleanup(sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false);
closedir(sub_dir);
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));
@@ -337,6 +350,11 @@ static int dir_cleanup(
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));
@@ -425,7 +443,7 @@ static int clean_item(Item *i) {
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);
+ r = dir_cleanup(i->path, d, &s, cutoff, s.st_dev, mountpoint, MAX_DEPTH, i->keep_first_level);
finish:
if (d)
@@ -1094,7 +1112,14 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
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_usec(a, &i->age) < 0) {
log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
r = -EBADMSG;
goto finish;
@@ -1320,7 +1345,7 @@ int main(int argc, char *argv[]) {
for (j = optind; j < argc; j++) {
char *fragment;
- fragment = resolve_fragment(argv[j], conf_file_dirs);
+ 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;
@@ -1335,7 +1360,7 @@ int main(int argc, char *argv[]) {
char **files, **f;
r = conf_files_list_strv(&files, ".conf",
- (const char **)conf_file_dirs);
+ (const char **) conf_file_dirs);
if (r < 0) {
log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r));
r = EXIT_FAILURE;