return false;
}
+static const char* skip_root(const LookupPaths *p, const char *path) {
+ if (p->root_dir) {
+ char *e;
+
+ e = path_startswith(path, p->root_dir);
+ if (!e)
+ return NULL;
+
+ /* Make sure the returned path starts with a slash */
+ if (e[0] != '/') {
+ if (e == path || e[-1] != '/')
+ return NULL;
+
+ e--;
+ }
+
+ return e;
+ }
+
+ return path;
+}
+
static int path_is_generator(const LookupPaths *p, const char *path) {
_cleanup_free_ char *parent = NULL;
static int path_is_config(const LookupPaths *p, const char *path) {
_cleanup_free_ char *parent = NULL;
+ const char *rpath;
assert(p);
assert(path);
* top-level directory and the one actually configured. The latter is particularly relevant for cases where we
* operate on a root directory. */
- if (path_startswith(path, "/etc") || path_startswith(path, "/run"))
+ rpath = skip_root(p, path);
+ if (rpath && (path_startswith(rpath, "/etc") || path_startswith(rpath, "/run")))
return true;
parent = dirname_malloc(path);
static int path_is_runtime(const LookupPaths *p, const char *path) {
_cleanup_free_ char *parent = NULL;
+ const char *rpath;
assert(p);
assert(path);
- if (path_startswith(path, "/run"))
+ rpath = skip_root(p, path);
+ if (rpath && path_startswith(rpath, "/run"))
return true;
parent = dirname_malloc(path);
int fd,
const char *path,
const char *config_path,
+ const LookupPaths *lp,
bool *restart,
UnitFileChange **changes,
unsigned *n_changes) {
assert(fd >= 0);
assert(path);
assert(config_path);
+ assert(lp);
assert(restart);
d = fdopendir(fd);
}
/* This will close nfd, regardless whether it succeeds or not */
- q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, restart, changes, n_changes);
+ q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, lp, restart, changes, n_changes);
if (q < 0 && r == 0)
r = q;
} else if (de->d_type == DT_LNK) {
_cleanup_free_ char *p = NULL, *dest = NULL;
+ const char *rp;
bool found;
int q;
return -ENOMEM;
q = readlink_malloc(p, &dest);
+ if (q == -ENOENT)
+ continue;
if (q < 0) {
- if (q == -ENOENT)
- continue;
-
if (r == 0)
r = q;
continue;
}
- /* We remove all links pointing to a file or
- * path that is marked, as well as all files
- * sharing the same name as a file that is
- * marked. */
+ /* We remove all links pointing to a file or path that is marked, as well as all files sharing
+ * the same name as a file that is marked. */
found =
set_contains(remove_symlinks_to, dest) ||
if (!found)
continue;
- if (unlink(p) < 0 && errno != ENOENT) {
+ if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) {
if (r == 0)
r = -errno;
continue;
unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, p, NULL);
- q = mark_symlink_for_removal(&remove_symlinks_to, p);
+ /* Now, remember the full path (but with the root prefix removed) of the symlink we just
+ * removed, and remove any symlinks to it, too */
+
+ rp = skip_root(lp, p);
+ q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p);
if (q < 0)
return q;
if (q > 0)
static int remove_marked_symlinks(
Set *remove_symlinks_to,
const char *config_path,
+ const LookupPaths *lp,
UnitFileChange **changes,
unsigned *n_changes) {
int r = 0;
assert(config_path);
+ assert(lp);
if (set_size(remove_symlinks_to) <= 0)
return 0;
return -errno;
/* This takes possession of cfd and closes it */
- q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, &restart, changes, n_changes);
+ q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, lp, &restart, changes, n_changes);
if (r == 0)
r = q;
} while (restart);
int fd,
const char *path,
const char *config_path,
+ const LookupPaths *lp,
bool *same_name_link) {
_cleanup_closedir_ DIR *d = NULL;
assert(fd >= 0);
assert(path);
assert(config_path);
+ assert(lp);
assert(same_name_link);
d = fdopendir(fd);
}
/* This will close nfd, regardless whether it succeeds or not */
- q = find_symlinks_fd(root_dir, name, nfd, p, config_path, same_name_link);
+ q = find_symlinks_fd(root_dir, name, nfd, p, config_path, lp, same_name_link);
if (q > 0)
return 1;
if (r == 0)
const char *root_dir,
const char *name,
const char *config_path,
+ const LookupPaths *lp,
bool *same_name_link) {
int fd;
}
/* This takes possession of fd and closes it */
- return find_symlinks_fd(root_dir, name, fd, config_path, config_path, same_name_link);
+ return find_symlinks_fd(root_dir, name, fd, config_path, config_path, lp, same_name_link);
}
static int find_symlinks_in_scope(
assert(name);
/* First look in the persistent config path */
- r = find_symlinks(paths->root_dir, name, paths->persistent_config, &same_name_link);
+ r = find_symlinks(paths->root_dir, name, paths->persistent_config, paths, &same_name_link);
if (r < 0)
return r;
if (r > 0) {
}
/* Then look in runtime config path */
- r = find_symlinks(paths->root_dir, name, paths->runtime_config, &same_name_link_runtime);
+ r = find_symlinks(paths->root_dir, name, paths->runtime_config, paths, &same_name_link_runtime);
if (r < 0)
return r;
if (r > 0) {
return r;
}
-static int install_info_add_auto(
- InstallContext *c,
- const char *name_or_path,
- UnitFileInstallInfo **ret) {
-
- assert(c);
- assert(name_or_path);
-
- if (path_is_absolute(name_or_path))
- return install_info_add(c, NULL, name_or_path, ret);
- else
- return install_info_add(c, name_or_path, NULL, ret);
-}
-
static int config_parse_also(
const char *unit,
const char *filename,
InstallContext *c,
UnitFileInstallInfo *info,
const char *path,
- const char *root_dir,
SearchFlags flags) {
const ConfigTableItem items[] = {
assert(info);
assert(path);
- path = prefix_roota(root_dir, path);
-
if (!(flags & SEARCH_LOAD)) {
r = lstat(path, &st);
if (r < 0)
const char *root_dir,
SearchFlags flags) {
- _cleanup_free_ char *np = NULL;
+ _cleanup_free_ char *target = NULL;
int r;
- r = unit_file_load(c, info, path, root_dir, flags);
+ r = unit_file_load(c, info, path, flags);
if (r != -ELOOP)
return r;
/* This is a symlink, let's read it. */
- r = readlink_and_make_absolute_root(root_dir, path, &np);
+ r = readlink_malloc(path, &target);
if (r < 0)
return r;
- if (path_equal(np, "/dev/null"))
+ if (path_equal(target, "/dev/null"))
info->type = UNIT_FILE_TYPE_MASKED;
else {
const char *bn;
UnitType a, b;
- bn = basename(np);
+ bn = basename(target);
if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN)) {
if (a < 0 || b < 0 || a != b)
return -EINVAL;
+ if (path_is_absolute(target))
+ /* This is an absolute path, prefix the root so that we always deal with fully qualified paths */
+ info->symlink_target = prefix_root(root_dir, target);
+ else
+ /* This is a relative path, take it relative to the dir the symlink is located in. */
+ info->symlink_target = file_in_same_dir(path, target);
+ if (!info->symlink_target)
+ return -ENOMEM;
+
info->type = UNIT_FILE_TYPE_SYMLINK;
- info->symlink_target = np;
- np = NULL;
}
return 0;
return 0;
}
+static int install_info_add_auto(
+ InstallContext *c,
+ const LookupPaths *paths,
+ const char *name_or_path,
+ UnitFileInstallInfo **ret) {
+
+ assert(c);
+ assert(name_or_path);
+
+ if (path_is_absolute(name_or_path)) {
+ const char *pp;
+
+ pp = prefix_roota(paths->root_dir, name_or_path);
+
+ return install_info_add(c, NULL, pp, ret);
+ } else
+ return install_info_add(c, name_or_path, NULL, ret);
+}
+
static int install_info_discover(
UnitFileScope scope,
InstallContext *c,
assert(paths);
assert(name);
- r = install_info_add_auto(c, name, &i);
+ r = install_info_add_auto(c, paths, name, &i);
if (r < 0)
return r;
static int install_info_symlink_alias(
UnitFileInstallInfo *i,
+ const LookupPaths *paths,
const char *config_path,
bool force,
UnitFileChange **changes,
int r = 0, q;
assert(i);
+ assert(paths);
assert(config_path);
STRV_FOREACH(s, i->aliases) {
_cleanup_free_ char *alias_path = NULL, *dst = NULL;
+ const char *rp;
q = install_full_printf(i, *s, &dst);
if (q < 0)
if (!alias_path)
return -ENOMEM;
- q = create_symlink(i->path, alias_path, force, changes, n_changes);
+ rp = skip_root(paths, i->path);
+
+ q = create_symlink(rp ?: i->path, alias_path, force, changes, n_changes);
if (r == 0)
r = q;
}
static int install_info_symlink_wants(
UnitFileInstallInfo *i,
+ const LookupPaths *paths,
const char *config_path,
char **list,
const char *suffix,
int r = 0, q;
assert(i);
+ assert(paths);
assert(config_path);
if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) {
STRV_FOREACH(s, list) {
_cleanup_free_ char *path = NULL, *dst = NULL;
+ const char *rp;
q = install_full_printf(i, *s, &dst);
if (q < 0)
if (!path)
return -ENOMEM;
- q = create_symlink(i->path, path, force, changes, n_changes);
+ rp = skip_root(paths, i->path);
+
+ q = create_symlink(rp ?: i->path, path, force, changes, n_changes);
if (r == 0)
r = q;
}
unsigned *n_changes) {
_cleanup_free_ char *path = NULL;
+ const char *rp;
int r;
assert(i);
if (!path)
return -ENOMEM;
- return create_symlink(i->path, path, force, changes, n_changes);
+ rp = skip_root(paths, i->path);
+
+ return create_symlink(rp ?: i->path, path, force, changes, n_changes);
}
static int install_info_apply(
if (i->type != UNIT_FILE_TYPE_REGULAR)
return 0;
- r = install_info_symlink_alias(i, config_path, force, changes, n_changes);
+ r = install_info_symlink_alias(i, paths, config_path, force, changes, n_changes);
- q = install_info_symlink_wants(i, config_path, i->wanted_by, ".wants/", force, changes, n_changes);
+ q = install_info_symlink_wants(i, paths, config_path, i->wanted_by, ".wants/", force, changes, n_changes);
if (r == 0)
r = q;
- q = install_info_symlink_wants(i, config_path, i->required_by, ".requires/", force, changes, n_changes);
+ q = install_info_symlink_wants(i, paths, config_path, i->required_by, ".requires/", force, changes, n_changes);
if (r == 0)
r = q;
r = 0;
STRV_FOREACH(i, todo) {
_cleanup_free_ char *path = NULL;
+ const char *rp;
path = path_make_absolute(*i, config_path);
if (!path)
if (unlink(path) < 0) {
if (errno != -ENOENT && r >= 0)
r = -errno;
- } else {
- q = mark_symlink_for_removal(&remove_symlinks_to, path);
- if (q < 0)
- return q;
- unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
+ continue;
}
+
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
+
+ rp = skip_root(&paths, path);
+ q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path);
+ if (q < 0)
+ return q;
}
- q = remove_marked_symlinks(remove_symlinks_to, config_path, changes, n_changes);
+ q = remove_marked_symlinks(remove_symlinks_to, config_path, &paths, changes, n_changes);
if (r >= 0)
r = q;
r = 0;
STRV_FOREACH(i, todo) {
- _cleanup_free_ char *path = NULL;
+ _cleanup_free_ char *new_path = NULL;
+ const char *old_path;
- path = path_make_absolute(basename(*i), config_path);
- if (!path)
+ old_path = skip_root(&paths, *i);
+ new_path = path_make_absolute(basename(*i), config_path);
+ if (!new_path)
return -ENOMEM;
- q = create_symlink(*i, path, force, changes, n_changes);
+ q = create_symlink(old_path ?: *i, new_path, force, changes, n_changes);
if (q < 0 && r >= 0)
r = q;
}
if (r < 0)
return r;
- return remove_marked_symlinks(remove_symlinks_to, config_path, changes, n_changes);
+ return remove_marked_symlinks(remove_symlinks_to, config_path, &paths, changes, n_changes);
}
int unit_file_reenable(
_cleanup_lookup_paths_free_ LookupPaths paths = {};
_cleanup_(install_context_done) InstallContext c = {};
UnitFileInstallInfo *i;
- const char *path;
+ const char *new_path, *old_path;
int r;
assert(scope >= 0);
assert(scope < _UNIT_FILE_SCOPE_MAX);
assert(name);
- if (unit_name_to_type(name) != UNIT_TARGET)
+ if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */
return -EINVAL;
if (streq(name, SPECIAL_DEFAULT_TARGET))
return -EINVAL;
if (path_is_generator(&paths, i->path))
return -EADDRNOTAVAIL;
- path = strjoina(paths.persistent_config, "/" SPECIAL_DEFAULT_TARGET);
+ old_path = skip_root(&paths, i->path);
+ new_path = strjoina(paths.persistent_config, "/" SPECIAL_DEFAULT_TARGET);
- return create_symlink(i->path, path, force, changes, n_changes);
+ return create_symlink(old_path ?: i->path, new_path, force, changes, n_changes);
}
int unit_file_get_default(
if (r < 0)
return r;
- r = remove_marked_symlinks(remove_symlinks_to, config_path, changes, n_changes);
+ r = remove_marked_symlinks(remove_symlinks_to, config_path, paths, changes, n_changes);
} else
r = 0;
STRV_FOREACH(i, paths.search_path) {
_cleanup_closedir_ DIR *d = NULL;
- _cleanup_free_ char *units_dir;
struct dirent *de;
- units_dir = path_join(paths.root_dir, *i, NULL);
- if (!units_dir)
- return -ENOMEM;
-
- d = opendir(units_dir);
+ d = opendir(*i);
if (!d) {
if (errno == ENOENT)
continue;
STRV_FOREACH(i, paths.search_path) {
_cleanup_closedir_ DIR *d = NULL;
- _cleanup_free_ char *units_dir;
struct dirent *de;
- units_dir = path_join(paths.root_dir, *i, NULL);
- if (!units_dir)
- return -ENOMEM;
-
- d = opendir(units_dir);
+ d = opendir(*i);
if (!d) {
if (errno == ENOENT)
continue;
if (!f)
return -ENOMEM;
- f->path = path_make_absolute(de->d_name, units_dir);
+ f->path = path_make_absolute(de->d_name, *i);
if (!f->path)
return -ENOMEM;
- r = unit_file_lookup_state(scope, &paths, basename(f->path), &f->state);
+ r = unit_file_lookup_state(scope, &paths, de->d_name, &f->state);
if (r < 0)
f->state = UNIT_FILE_BAD;
projects / thirdparty / systemd.git / blobdiff