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Diffstat (limited to 'src/tmpfiles.c')
-rw-r--r--src/tmpfiles.c333
1 files changed, 213 insertions, 120 deletions
diff --git a/src/tmpfiles.c b/src/tmpfiles.c
index 21bf44d3a4..19a7c08c40 100644
--- a/src/tmpfiles.c
+++ b/src/tmpfiles.c
@@ -50,7 +50,7 @@
* properly owned directories beneath /tmp, /var/tmp, /run, which are
* volatile and hence need to be recreated on bootup. */
-enum {
+typedef enum ItemType {
/* These ones take file names */
CREATE_FILE = 'f',
TRUNCATE_FILE = 'F',
@@ -61,11 +61,13 @@ enum {
/* These ones take globs */
IGNORE_PATH = 'x',
REMOVE_PATH = 'r',
- RECURSIVE_REMOVE_PATH = 'R'
-};
+ RECURSIVE_REMOVE_PATH = 'R',
+ RELABEL_PATH = 'z',
+ RECURSIVE_RELABEL_PATH = 'Z'
+} ItemType;
typedef struct Item {
- char type;
+ ItemType type;
char *path;
uid_t uid;
@@ -90,8 +92,8 @@ static const char *arg_prefix = NULL;
#define MAX_DEPTH 256
-static bool needs_glob(int t) {
- return t == IGNORE_PATH || t == REMOVE_PATH || t == RECURSIVE_REMOVE_PATH;
+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) {
@@ -405,8 +407,145 @@ finish:
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 fd = -1, r;
+ int r;
mode_t u;
struct stat st;
@@ -420,7 +559,8 @@ static int create_item(Item *i) {
return 0;
case CREATE_FILE:
- case TRUNCATE_FILE:
+ case TRUNCATE_FILE: {
+ int fd;
u = umask(0);
fd = open(i->path, O_CREAT|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW|
@@ -429,39 +569,27 @@ static int create_item(Item *i) {
if (fd < 0) {
log_error("Failed to create file %s: %m", i->path);
- r = -errno;
- goto finish;
+ return -errno;
}
- if (fstat(fd, &st) < 0) {
+ close_nointr_nofail(fd);
+
+ if (stat(i->path, &st) < 0) {
log_error("stat(%s) failed: %m", i->path);
- r = -errno;
- goto finish;
+ return -errno;
}
if (!S_ISREG(st.st_mode)) {
log_error("%s is not a file.", i->path);
- r = -EEXIST;
- goto finish;
+ return -EEXIST;
}
- 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,
- 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;
- }
+ r = item_set_perms(i, i->path);
+ if (r < 0)
+ return r;
break;
+ }
case TRUNCATE_DIRECTORY:
case CREATE_DIRECTORY:
@@ -473,38 +601,22 @@ static int create_item(Item *i) {
if (r < 0 && errno != EEXIST) {
log_error("Failed to create directory %s: %m", i->path);
- r = -errno;
- goto finish;
+ return -errno;
}
if (stat(i->path, &st) < 0) {
log_error("stat(%s) failed: %m", i->path);
- r = -errno;
- goto finish;
+ return -errno;
}
if (!S_ISDIR(st.st_mode)) {
log_error("%s is not a directory.", i->path);
- r = -EEXIST;
- goto finish;
+ return -EEXIST;
}
- 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;
- }
+ r = item_set_perms(i, i->path);
+ if (r < 0)
+ return r;
break;
@@ -516,54 +628,45 @@ static int create_item(Item *i) {
if (r < 0 && errno != EEXIST) {
log_error("Failed to create fifo %s: %m", i->path);
- r = -errno;
- goto finish;
+ return -errno;
}
if (stat(i->path, &st) < 0) {
log_error("stat(%s) failed: %m", i->path);
- r = -errno;
- goto finish;
+ return -errno;
}
if (!S_ISFIFO(st.st_mode)) {
log_error("%s is not a fifo.", i->path);
- r = -EEXIST;
- goto finish;
+ return -EEXIST;
}
- if (i->mode_set)
- if (chmod(i->path, i->mode) < 0) {
- log_error("chmod(%s) failed: %m", i->path);
- r = -errno;
- goto finish;
- }
+ r = item_set_perms(i, i->path);
+ if (r < 0)
+ return r;
- 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 RELABEL_PATH:
+
+ r = glob_item(i, item_set_perms);
+ if (r < 0)
+ return 0;
break;
- }
- if ((r = label_fix(i->path, false)) < 0)
- goto finish;
+ case RECURSIVE_RELABEL_PATH:
- log_debug("%s created successfully.", i->path);
+ r = glob_item(i, recursive_relabel);
+ if (r < 0)
+ return r;
+ }
-finish:
- if (fd >= 0)
- close_nointr_nofail(fd);
+ log_debug("%s created successfully.", i->path);
- return r;
+ return 0;
}
-static int remove_item(Item *i, const char *instance) {
+static int remove_item_instance(Item *i, const char *instance) {
int r;
assert(i);
@@ -575,6 +678,8 @@ static int remove_item(Item *i, const char *instance) {
case CREATE_DIRECTORY:
case CREATE_FIFO:
case IGNORE_PATH:
+ case RELABEL_PATH:
+ case RECURSIVE_RELABEL_PATH:
break;
case REMOVE_PATH:
@@ -599,7 +704,9 @@ static int remove_item(Item *i, const char *instance) {
return 0;
}
-static int remove_item_glob(Item *i) {
+static int remove_item(Item *i) {
+ int r = 0;
+
assert(i);
switch (i->type) {
@@ -609,39 +716,18 @@ static int remove_item_glob(Item *i) {
case CREATE_DIRECTORY:
case CREATE_FIFO:
case IGNORE_PATH:
+ case RELABEL_PATH:
+ case RECURSIVE_RELABEL_PATH:
break;
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(i, *fn)) < 0)
- r = k;
-
- globfree(&g);
- return r;
- }
+ case RECURSIVE_REMOVE_PATH:
+ r = glob_item(i, remove_item_instance);
+ break;
}
- return 0;
+ return r;
}
static int process_item(Item *i) {
@@ -650,7 +736,7 @@ static int process_item(Item *i) {
assert(i);
r = arg_create ? create_item(i) : 0;
- q = arg_remove ? remove_item_glob(i) : 0;
+ q = arg_remove ? remove_item(i) : 0;
p = arg_clean ? clean_item(i) : 0;
if (r < 0)
@@ -701,6 +787,7 @@ static bool item_equal(Item *a, Item *b) {
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;
@@ -720,7 +807,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
"%ms "
"%ms "
"%ms",
- &i->type,
+ &type,
&i->path,
&mode,
&user,
@@ -731,18 +818,24 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
goto finish;
}
- 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);
+ 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;
+ 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);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-10 21:31:24 +0000