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-rw-r--r--src/tmpfiles/tmpfiles.c283
1 files changed, 196 insertions, 87 deletions
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index 389f493193..5bd7cfecfe 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -346,18 +346,25 @@ static int dir_cleanup(
}
/* Stay on the same filesystem */
- if (s.st_dev != rootdev)
+ if (s.st_dev != rootdev) {
+ log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name);
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)
+ if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) {
+ log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.",
+ p, dent->d_name);
continue;
+ }
/* Do not delete read-only files owned by root */
- if (s.st_uid == 0 && !(s.st_mode & S_IWUSR))
+ if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) {
+ log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name);
continue;
+ }
sub_path = strjoin(p, "/", dent->d_name, NULL);
if (!sub_path) {
@@ -366,31 +373,35 @@ static int dir_cleanup(
}
/* Is there an item configured for this path? */
- if (hashmap_get(items, sub_path))
+ if (hashmap_get(items, sub_path)) {
+ log_debug("Ignoring \"%s\": a separate entry exists.", sub_path);
continue;
+ }
- if (find_glob(globs, sub_path))
+ if (find_glob(globs, sub_path)) {
+ log_debug("Ignoring \"%s\": a separate glob exists.", sub_path);
continue;
+ }
if (S_ISDIR(s.st_mode)) {
if (mountpoint &&
streq(dent->d_name, "lost+found") &&
- s.st_uid == 0)
+ s.st_uid == 0) {
+ log_debug("Ignoring \"%s\".", sub_path);
continue;
+ }
if (maxdepth <= 0)
- log_warning("Reached max depth on %s.", sub_path);
+ log_warning("Reached max depth on \"%s\".", sub_path);
else {
_cleanup_closedir_ DIR *sub_dir;
int q;
sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME);
if (!sub_dir) {
- if (errno != ENOENT) {
- log_error_errno(errno, "opendir(%s/%s) failed: %m", p, dent->d_name);
- r = -errno;
- }
+ if (errno != ENOENT)
+ r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path);
continue;
}
@@ -407,17 +418,35 @@ static int dir_cleanup(
* bit already has a meaning for directories,
* so we don't want to overload that. */
- if (keep_this_level)
+ if (keep_this_level) {
+ log_debug("Keeping \"%s\".", sub_path);
continue;
+ }
/* Ignore ctime, we change it when deleting */
- age = MAX(timespec_load(&s.st_mtim),
- timespec_load(&s.st_atim));
- if (age >= cutoff)
+ age = timespec_load(&s.st_mtim);
+ if (age >= cutoff) {
+ char a[FORMAT_TIMESTAMP_MAX];
+ /* Follows spelling in stat(1). */
+ log_debug("Directory \"%s\": modify time %s is too new.",
+ sub_path,
+ format_timestamp_us(a, sizeof(a), age));
continue;
+ }
+
+ age = timespec_load(&s.st_atim);
+ if (age >= cutoff) {
+ char a[FORMAT_TIMESTAMP_MAX];
+ log_debug("Directory \"%s\": access time %s is too new.",
+ sub_path,
+ format_timestamp_us(a, sizeof(a), age));
+ continue;
+ }
- if (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) {
- log_debug("rmdir '%s'", sub_path);
+ if (i->type == IGNORE_DIRECTORY_PATH && streq(dent->d_name, p))
+ log_debug("Ignoring directory \"%s\"", sub_path);
+ else {
+ log_debug("Removing directory \"%s\".", sub_path);
if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) {
if (errno != ENOENT && errno != ENOTEMPTY) {
@@ -432,58 +461,91 @@ static int dir_cleanup(
* set. These are semantics we define, and are
* unknown elsewhere. See XDG_RUNTIME_DIR
* specification for details. */
- if (s.st_mode & S_ISVTX)
+ if (s.st_mode & S_ISVTX) {
+ log_debug("Skipping \"%s\": sticky bit set.", sub_path);
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"))
+ if (mountpoint && S_ISREG(s.st_mode))
+ if ((streq(dent->d_name, ".journal") && s.st_uid == 0) ||
+ streq(dent->d_name, "aquota.user") ||
+ streq(dent->d_name, "aquota.group")) {
+ log_debug("Skipping \"%s\".", sub_path);
continue;
- }
+ }
/* Ignore sockets that are listed in /proc/net/unix */
- if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path))
+ if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) {
+ log_debug("Skipping \"%s\": live socket.", sub_path);
continue;
+ }
/* Ignore device nodes */
- if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode))
+ if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) {
+ log_debug("Skipping \"%s\": a device.", sub_path);
continue;
+ }
/* Keep files on this level around if this is
* requested */
- if (keep_this_level)
+ if (keep_this_level) {
+ log_debug("Keeping \"%s\".", sub_path);
continue;
+ }
- age = MAX3(timespec_load(&s.st_mtim),
- timespec_load(&s.st_atim),
- timespec_load(&s.st_ctim));
-
- if (age >= cutoff)
+ age = timespec_load(&s.st_mtim);
+ if (age >= cutoff) {
+ char a[FORMAT_TIMESTAMP_MAX];
+ /* Follows spelling in stat(1). */
+ log_debug("File \"%s\": modify time %s is too new.",
+ sub_path,
+ format_timestamp_us(a, sizeof(a), age));
continue;
+ }
- log_debug("unlink '%s'", sub_path);
+ age = timespec_load(&s.st_atim);
+ if (age >= cutoff) {
+ char a[FORMAT_TIMESTAMP_MAX];
+ log_debug("File \"%s\": access time %s is too new.",
+ sub_path,
+ format_timestamp_us(a, sizeof(a), age));
+ continue;
+ }
- if (unlinkat(dirfd(d), dent->d_name, 0) < 0) {
- if (errno != ENOENT) {
- log_error_errno(errno, "unlink(%s): %m", sub_path);
- r = -errno;
- }
+ age = timespec_load(&s.st_ctim);
+ if (age >= cutoff) {
+ char a[FORMAT_TIMESTAMP_MAX];
+ log_debug("File \"%s\": change time %s is too new.",
+ sub_path,
+ format_timestamp_us(a, sizeof(a), age));
+ continue;
}
+ log_debug("unlink \"%s\"", sub_path);
+
+ if (unlinkat(dirfd(d), dent->d_name, 0) < 0)
+ if (errno != ENOENT)
+ r = log_error_errno(errno, "unlink(%s): %m", sub_path);
+
deleted = true;
}
}
finish:
if (deleted) {
+ usec_t age1, age2;
+ char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX];
+
/* Restore original directory timestamps */
times[0] = ds->st_atim;
times[1] = ds->st_mtim;
+ age1 = timespec_load(&ds->st_atim);
+ age2 = timespec_load(&ds->st_mtim);
+ log_debug("Restoring access and modification time on \"%s\": %s, %s",
+ p,
+ format_timestamp_us(a, sizeof(a), age1),
+ format_timestamp_us(b, sizeof(b), age2));
if (futimens(dirfd(d), times) < 0)
log_error_errno(errno, "utimensat(%s): %m", p);
}
@@ -515,19 +577,27 @@ static int path_set_perms(Item *i, const char *path) {
m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */
}
- if (!st_valid || m != (st.st_mode & 07777)) {
+ if (st_valid && m == (st.st_mode & 07777))
+ log_debug("\"%s\" has right mode %o", path, st.st_mode);
+ else {
+ log_debug("chmod \"%s\" to mode %o", path, m);
if (chmod(path, m) < 0)
return log_error_errno(errno, "chmod(%s) failed: %m", path);
}
}
- if ((!st_valid || (i->uid != st.st_uid || i->gid != st.st_gid)) &&
- (i->uid_set || i->gid_set))
+ if ((!st_valid || i->uid != st.st_uid || i->gid != st.st_gid) &&
+ (i->uid_set || i->gid_set)) {
+ log_debug("chown \"%s\" to "UID_FMT"."GID_FMT,
+ path,
+ i->uid_set ? i->uid : UID_INVALID,
+ i->gid_set ? i->gid : GID_INVALID);
if (chown(path,
i->uid_set ? i->uid : UID_INVALID,
i->gid_set ? i->gid : GID_INVALID) < 0)
return log_error_errno(errno, "chown(%s) failed: %m", path);
+ }
return label_fix(path, false, false);
}
@@ -583,6 +653,7 @@ static int path_set_xattrs(Item *i, const char *path) {
int n;
n = strlen(*value);
+ log_debug("\"%s\": setting xattr \"%s=%s\"", path, *name, *value);
if (lsetxattr(path, *name, *value, n, 0) < 0) {
log_error("Setting extended attribute %s=%s on %s failed: %m",
*name, *value, path);
@@ -615,6 +686,7 @@ static int get_acls_from_arg(Item *item) {
static int path_set_acl(const char *path, acl_type_t type, acl_t acl, bool modify) {
_cleanup_(acl_freep) acl_t dup = NULL;
int r;
+ _cleanup_(acl_free_charpp) char *t = NULL;
if (modify) {
r = acls_for_file(path, type, acl, &dup);
@@ -636,19 +708,18 @@ static int path_set_acl(const char *path, acl_type_t type, acl_t acl, bool modif
if (r < 0)
return r;
- r = acl_set_file(path, type, dup);
- if (r < 0) {
- _cleanup_(acl_free_charpp) char *t;
-
- r = -errno;
- t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE);
- log_error_errno(r,
- "Setting %s ACL \"%s\" on %s failed: %m",
- type == ACL_TYPE_ACCESS ? "access" : "default",
- strna(t), path);
- }
+ t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE);
+ log_debug("\"%s\": setting %s ACL \"%s\"", path,
+ type == ACL_TYPE_ACCESS ? "access" : "default",
+ strna(t));
- return r;
+ r = acl_set_file(path, type, dup);
+ if (r < 0)
+ return log_error_errno(-errno,
+ "Setting %s ACL \"%s\" on %s failed: %m",
+ type == ACL_TYPE_ACCESS ? "access" : "default",
+ strna(t), path);
+ return 0;
}
static int path_set_acls(Item *item, const char *path) {
@@ -692,8 +763,10 @@ static int write_one_file(Item *i, const char *path) {
}
if (fd < 0) {
- if (i->type == WRITE_FILE && errno == ENOENT)
+ if (i->type == WRITE_FILE && errno == ENOENT) {
+ log_debug_errno(errno, "Not writing \"%s\": %m", path);
return 0;
+ }
log_error_errno(errno, "Failed to create file %s: %m", path);
return -errno;
@@ -701,21 +774,19 @@ static int write_one_file(Item *i, const char *path) {
if (i->argument) {
_cleanup_free_ char *unescaped;
- ssize_t n;
- size_t l;
+
+ log_debug("%s to \"%s\".",
+ i->type == CREATE_FILE ? "Appending" : "Writing", path);
unescaped = cunescape(i->argument);
if (!unescaped)
return log_oom();
- l = strlen(unescaped);
- n = write(fd, unescaped, l);
-
- if (n < 0 || (size_t) n < l) {
- log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write");
- return n < 0 ? n : -EIO;
- }
- }
+ r = loop_write(fd, unescaped, strlen(unescaped), false);
+ if (r < 0)
+ return log_error_errno(r, "Failed to write file \"%s\": %m", path);
+ } else
+ log_debug("\"%s\" has been created.", path);
fd = safe_close(fd);
@@ -747,8 +818,10 @@ static int item_do_children(Item *i, const char *path, action_t action) {
* tries to go on */
d = opendir(path);
- if (!d)
+ if (!d) {
+ log_debug_errno(errno, "Cannot open directory \"%s\": %m", path);
return errno == ENOENT || errno == ENOTDIR ? 0 : -errno;
+ }
for (;;) {
_cleanup_free_ char *p = NULL;
@@ -816,6 +889,8 @@ static int create_item(Item *i) {
assert(i);
+ log_debug("Running create action for entry %c %s", (char) i->type, i->path);
+
switch (i->type) {
case IGNORE_PATH:
@@ -832,6 +907,7 @@ static int create_item(Item *i) {
break;
case COPY_FILES:
+ log_debug("Copying tree \"%s\" to \"%s\".", i->argument, i->path);
r = copy_tree(i->argument, i->path, false);
if (r < 0) {
struct stat a, b;
@@ -871,29 +947,31 @@ static int create_item(Item *i) {
RUN_WITH_UMASK(0000)
mkdir_parents_label(i->path, 0755);
- if (i->type == CREATE_SUBVOLUME) {
- RUN_WITH_UMASK((~i->mode) & 0777)
+ if (i->type == CREATE_SUBVOLUME)
+ RUN_WITH_UMASK((~i->mode) & 0777) {
r = btrfs_subvol_make(i->path);
- } else
+ log_debug_errno(r, "Creating subvolume \"%s\": %m", i->path);
+ }
+ else
r = 0;
- if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) {
+ if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY)
RUN_WITH_UMASK(0000)
r = mkdir_label(i->path, i->mode);
- }
if (r < 0) {
if (r != -EEXIST)
- return log_error_errno(r, "Failed to create directory or subvolume %s: %m", i->path);
+ return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path);
if (stat(i->path, &st) < 0)
return log_error_errno(errno, "stat(%s) failed: %m", i->path);
if (!S_ISDIR(st.st_mode)) {
- log_debug("%s already exists and is not a directory.", i->path);
+ log_debug("\"%s\" already exists and is not a directory.", i->path);
return 0;
}
}
+ log_debug("Created directory \"%s\".", i->path);
r = path_set_perms(i, i->path);
if (r < 0)
@@ -934,6 +1012,7 @@ static int create_item(Item *i) {
}
}
}
+ log_debug("Created fifo \"%s\".", i->path);
r = path_set_perms(i, i->path);
if (r < 0)
@@ -964,11 +1043,12 @@ static int create_item(Item *i) {
if (r < 0)
return log_error_errno(r, "symlink(%s, %s) failed: %m", i->argument, i->path);
} else {
- log_debug("%s is not a symlink or does not point to the correct path.", i->path);
+ log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path);
return 0;
}
}
}
+ log_debug("Created symlink \"%s\".", i->path);
break;
@@ -1025,6 +1105,9 @@ static int create_item(Item *i) {
}
}
}
+ log_debug("Created %s device node \"%s\" %u:%u.",
+ i->type == CREATE_BLOCK_DEVICE ? "block" : "char",
+ i->path, major(i->mode), minor(i->mode));
r = path_set_perms(i, i->path);
if (r < 0)
@@ -1093,6 +1176,7 @@ static int remove_item_instance(Item *i, const char *instance) {
case RECURSIVE_REMOVE_PATH:
/* FIXME: we probably should use dir_cleanup() here
* instead of rm_rf() so that 'x' is honoured. */
+ log_debug("rm -rf \"%s\"", instance);
r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
if (r < 0 && r != -ENOENT)
return log_error_errno(r, "rm_rf(%s): %m", instance);
@@ -1111,6 +1195,8 @@ static int remove_item(Item *i) {
assert(i);
+ log_debug("Running remove action for entry %c %s", (char) i->type, i->path);
+
switch (i->type) {
case CREATE_FILE:
@@ -1148,8 +1234,8 @@ 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;
+ char timestamp[FORMAT_TIMESTAMP_MAX];
assert(i);
@@ -1164,10 +1250,12 @@ static int clean_item_instance(Item *i, const char* instance) {
d = opendir(instance);
if (!d) {
- if (errno == ENOENT || errno == ENOTDIR)
+ if (errno == ENOENT || errno == ENOTDIR) {
+ log_debug_errno(errno, "Directory \"%s\": %m", instance);
return 0;
+ }
- log_error_errno(errno, "Failed to open directory %s: %m", i->path);
+ log_error_errno(errno, "Failed to open directory %s: %m", instance);
return -errno;
}
@@ -1185,9 +1273,13 @@ static int clean_item_instance(Item *i, const char* instance) {
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;
+ log_debug("Cleanup threshold for %s \"%s\" is %s",
+ mountpoint ? "mount point" : "directory",
+ instance,
+ format_timestamp_us(timestamp, sizeof(timestamp), cutoff));
+
+ return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint,
+ MAX_DEPTH, i->keep_first_level);
}
static int clean_item(Item *i) {
@@ -1195,6 +1287,8 @@ static int clean_item(Item *i) {
assert(i);
+ log_debug("Running clean action for entry %c %s", (char) i->type, i->path);
+
switch (i->type) {
case CREATE_DIRECTORY:
case CREATE_SUBVOLUME:
@@ -1326,16 +1420,25 @@ static bool should_include_path(const char *path) {
char **prefix;
STRV_FOREACH(prefix, arg_exclude_prefixes)
- if (path_startswith(path, *prefix))
+ if (path_startswith(path, *prefix)) {
+ log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.",
+ path, *prefix);
return false;
+ }
STRV_FOREACH(prefix, arg_include_prefixes)
- if (path_startswith(path, *prefix))
+ if (path_startswith(path, *prefix)) {
+ log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix);
return true;
+ }
/* no matches, so we should include this path only if we
* have no whitelist at all */
- return strv_length(arg_include_prefixes) == 0;
+ if (strv_length(arg_include_prefixes) == 0)
+ return true;
+
+ log_debug("Entry \"%s\" does not match any include prefix, skipping.", path);
+ return false;
}
static int parse_line(const char *fname, unsigned line, const char *buffer) {
@@ -1390,8 +1493,11 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
}
}
- if (boot && !arg_boot)
+ if (boot && !arg_boot) {
+ log_debug("Ignoring entry %s \"%s\" because --boot is not specified.",
+ action, path);
return 0;
+ }
i.type = action[0];
i.force = force;
@@ -1497,7 +1603,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
break;
default:
- log_error("[%s:%u] Unknown command type '%c'.", fname, line, i.type);
+ log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type);
return -EBADMSG;
}
@@ -1729,11 +1835,14 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f);
if (r < 0) {
- if (ignore_enoent && r == -ENOENT)
+ if (ignore_enoent && r == -ENOENT) {
+ log_debug_errno(r, "Failed to open \"%s\": %m", fn);
return 0;
+ }
return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn);
}
+ log_debug("Reading config file \"%s\".", fn);
FOREACH_LINE(line, f, break) {
char *l;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-29 23:15:55 +0000