#define _cleanup_install_context_done_ _cleanup_(install_context_done)
+static int in_search_path(const char *path, char **search) {
+ _cleanup_free_ char *parent = NULL;
+ int r;
+
+ assert(path);
+
+ r = path_get_parent(path, &parent);
+ if (r < 0)
+ return r;
+
+ return strv_contains(search, parent);
+}
+
static int lookup_paths_init_from_scope(LookupPaths *paths,
UnitFileScope scope,
const char *root_dir) {
if (!c[i].path)
return -ENOMEM;
+ path_kill_slashes(c[i].path);
+
if (source) {
c[i].source = strdup(source);
if (!c[i].source) {
free(c[i].path);
return -ENOMEM;
}
+
+ path_kill_slashes(c[i].path);
} else
c[i].source = NULL;
if (unit_name_is_instance(de->d_name) &&
instance_whitelist &&
- !strv_contains(instance_whitelist, de->d_name))
- continue;
+ !strv_contains(instance_whitelist, de->d_name)) {
+
+ _cleanup_free_ char *w;
+
+ /* OK, the file is not listed directly
+ * in the whitelist, so let's check if
+ * the template of it might be
+ * listed. */
+
+ w = unit_name_template(de->d_name);
+ if (!w)
+ return -ENOMEM;
+
+ if (!strv_contains(instance_whitelist, w))
+ continue;
+ }
p = path_make_absolute(de->d_name, path);
if (!p)
if (!found)
continue;
-
if (unlink(p) < 0 && errno != ENOENT) {
-
if (r == 0)
r = -errno;
continue;
}
- rmdir_parents(p, config_path);
-
path_kill_slashes(p);
-
+ rmdir_parents(p, config_path);
add_file_change(changes, n_changes, UNIT_FILE_UNLINK, p, NULL);
if (!set_get(remove_symlinks_to, p)) {
continue;
if (force) {
- unlink(path);
-
- if (symlink("/dev/null", path) >= 0) {
-
+ if (symlink_atomic("/dev/null", path) >= 0) {
add_file_change(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, "/dev/null");
-
continue;
}
}
continue;
if (force) {
- unlink(path);
-
- if (symlink(*i, path) >= 0) {
-
+ if (symlink_atomic(*i, path) >= 0) {
add_file_change(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, *i);
-
continue;
}
}
strv_free(i->aliases);
strv_free(i->wanted_by);
strv_free(i->required_by);
+ free(i->default_instance);
free(i);
}
return install_info_add(c, name_or_path, NULL);
}
-static int config_parse_also(const char *unit,
- const char *filename,
- unsigned line,
- const char *section,
- unsigned section_line,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
+static int config_parse_also(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
char *w;
size_t l;
return 0;
}
-static int config_parse_user(const char *unit,
- const char *filename,
- unsigned line,
- const char *section,
- unsigned section_line,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
+static int config_parse_user(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
InstallInfo *i = data;
- char* printed;
+ char *printed;
int r;
assert(filename);
return 0;
}
+static int config_parse_default_instance(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ InstallInfo *i = data;
+ char *printed;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = install_full_printf(i, rvalue, &printed);
+ if (r < 0)
+ return r;
+
+ if (!unit_instance_is_valid(printed))
+ return -EINVAL;
+
+ free(i->default_instance);
+ i->default_instance = printed;
+
+ return 0;
+}
+
static int unit_file_load(
InstallContext *c,
InstallInfo *info,
const char *path,
+ const char *root_dir,
bool allow_symlink) {
const ConfigTableItem items[] = {
- { "Install", "Alias", config_parse_strv, 0, &info->aliases },
- { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by },
- { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by },
- { "Install", "Also", config_parse_also, 0, c },
- { "Exec", "User", config_parse_user, 0, info },
- { NULL, NULL, NULL, 0, NULL }
+ { "Install", "Alias", config_parse_strv, 0, &info->aliases },
+ { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by },
+ { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by },
+ { "Install", "DefaultInstance", config_parse_default_instance, 0, info },
+ { "Install", "Also", config_parse_also, 0, c },
+ { "Exec", "User", config_parse_user, 0, info },
+ {}
};
- int fd;
_cleanup_fclose_ FILE *f = NULL;
- int r;
+ int fd, r;
assert(c);
assert(info);
assert(path);
+ if (!isempty(root_dir))
+ path = strappenda3(root_dir, "/", path);
+
fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|(allow_symlink ? 0 : O_NOFOLLOW));
if (fd < 0)
return -errno;
return -ENOMEM;
}
- r = config_parse(NULL, path, f, NULL,
- config_item_table_lookup, (void*) items, true, true, info);
+ r = config_parse(NULL, path, f, NULL, config_item_table_lookup, (void*) items, true, true, info);
if (r < 0)
return r;
assert(info);
assert(paths);
- if (info->path) {
- char *full_path = NULL;
-
- if (!isempty(root_dir))
- full_path = strappenda(root_dir, info->path);
-
- return unit_file_load(c, info, full_path ?: info->path, allow_symlink);
- }
+ if (info->path)
+ return unit_file_load(c, info, info->path, root_dir, allow_symlink);
assert(info->name);
STRV_FOREACH(p, paths->unit_path) {
- _cleanup_free_ char *path = NULL, *full_path = NULL;
+ _cleanup_free_ char *path = NULL;
path = strjoin(*p, "/", info->name, NULL);
if (!path)
return -ENOMEM;
- if (!isempty(root_dir)) {
- full_path = strappend(root_dir, path);
- if (!full_path)
- return -ENOMEM;
- }
-
- r = unit_file_load(c, info, full_path ?: path, allow_symlink);
+ r = unit_file_load(c, info, path, root_dir, allow_symlink);
if (r >= 0) {
info->path = path;
path = NULL;
- } else if (r == -ENOENT && unit_name_is_instance(info->name)) {
- /* Unit file doesn't exist, however instance enablement was requested.
- * We will check if it is possible to load template unit file. */
- _cleanup_free_ char *template = NULL, *template_dir = NULL;
+ return r;
+ }
+ if (r != -ENOENT && r != -ELOOP)
+ return r;
+ }
- template = unit_name_template(info->name);
- if (!template)
- return -ENOMEM;
+ if (unit_name_is_instance(info->name)) {
+
+ /* Unit file doesn't exist, however instance
+ * enablement was requested. We will check if it is
+ * possible to load template unit file. */
- /* We will reuse path variable since we don't need it anymore. */
- template_dir = path;
- *(strrchr(template_dir, '/') + 1) = '\0';
+ _cleanup_free_ char *template = NULL;
- path = strappend(template_dir, template);
+ template = unit_name_template(info->name);
+ if (!template)
+ return -ENOMEM;
+
+ STRV_FOREACH(p, paths->unit_path) {
+ _cleanup_free_ char *path = NULL;
+
+ path = strjoin(*p, "/", template, NULL);
if (!path)
return -ENOMEM;
- if (!isempty(root_dir)) {
- free(full_path);
- full_path = strappend(root_dir, path);
- if (!full_path)
- return -ENOMEM;
- }
-
- /* Let's try to load template unit. */
- r = unit_file_load(c, info, full_path ?: path, allow_symlink);
+ r = unit_file_load(c, info, path, root_dir, allow_symlink);
if (r >= 0) {
info->path = path;
path = NULL;
+ return r;
}
+ if (r != -ENOENT && r != -ELOOP)
+ return r;
}
-
- if (r != -ENOENT && r != -ELOOP)
- return r;
}
return -ENOENT;
if (!force)
return -EEXIST;
- r = unlink(new_path);
- if (r < 0 && errno != ENOENT)
- return -errno;
+ r = symlink_atomic(old_path, new_path);
+ if (r < 0)
+ return r;
- if (symlink(old_path, new_path) >= 0) {
- add_file_change(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL);
- add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path);
- return 0;
- }
+ add_file_change(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL);
+ add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path);
- return -errno;
+ return 0;
}
static int install_info_symlink_alias(
static int install_info_symlink_wants(
InstallInfo *i,
const char *config_path,
+ char **list,
+ const char *suffix,
bool force,
UnitFileChange **changes,
unsigned *n_changes) {
+ _cleanup_free_ char *buf = NULL;
+ const char *n;
char **s;
int r = 0, q;
assert(i);
assert(config_path);
- STRV_FOREACH(s, i->wanted_by) {
- _cleanup_free_ char *path = NULL, *dst = NULL;
+ if (unit_name_is_template(i->name)) {
- q = install_full_printf(i, *s, &dst);
- if (q < 0)
- return q;
+ /* Don't install any symlink if there's no default
+ * instance configured */
- if (!unit_name_is_valid(dst, TEMPLATE_VALID)) {
- r = -EINVAL;
- continue;
- }
+ if (!i->default_instance)
+ return 0;
- if (asprintf(&path, "%s/%s.wants/%s", config_path, dst, i->name) < 0)
+ buf = unit_name_replace_instance(i->name, i->default_instance);
+ if (!buf)
return -ENOMEM;
- q = create_symlink(i->path, path, force, changes, n_changes);
-
- if (r == 0)
- r = q;
- }
-
- return r;
-}
-
-static int install_info_symlink_requires(
- InstallInfo *i,
- const char *config_path,
- bool force,
- UnitFileChange **changes,
- unsigned *n_changes) {
-
- char **s;
- int r = 0, q;
-
- assert(i);
- assert(config_path);
+ n = buf;
+ } else
+ n = i->name;
- STRV_FOREACH(s, i->required_by) {
+ STRV_FOREACH(s, list) {
_cleanup_free_ char *path = NULL, *dst = NULL;
q = install_full_printf(i, *s, &dst);
continue;
}
- if (asprintf(&path, "%s/%s.requires/%s", config_path, dst, i->name) < 0)
+ path = strjoin(config_path, "/", dst, suffix, n, NULL);
+ if (!path)
return -ENOMEM;
q = create_symlink(i->path, path, force, changes, n_changes);
-
if (r == 0)
r = q;
}
InstallInfo *i,
LookupPaths *paths,
const char *config_path,
+ const char *root_dir,
bool force,
UnitFileChange **changes,
unsigned *n_changes) {
InstallInfo *i,
LookupPaths *paths,
const char *config_path,
+ const char *root_dir,
bool force,
UnitFileChange **changes,
unsigned *n_changes) {
r = install_info_symlink_alias(i, config_path, force, changes, n_changes);
- q = install_info_symlink_wants(i, config_path, force, changes, n_changes);
+ q = install_info_symlink_wants(i, config_path, i->wanted_by, ".wants/", force, changes, n_changes);
if (r == 0)
r = q;
- q = install_info_symlink_requires(i, config_path, force, changes, n_changes);
+ q = install_info_symlink_wants(i, config_path, i->required_by, ".requires/", force, changes, n_changes);
if (r == 0)
r = q;
- q = install_info_symlink_link(i, paths, config_path, force, changes, n_changes);
+ q = install_info_symlink_link(i, paths, config_path, root_dir, force, changes, n_changes);
if (r == 0)
r = q;
} else if (r >= 0)
r += q;
- q = install_info_apply(i, paths, config_path, force, changes, n_changes);
+ q = install_info_apply(i, paths, config_path, root_dir, force, changes, n_changes);
if (r >= 0 && q < 0)
r = q;
}
int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name) {
_cleanup_strv_free_ char **files = NULL;
- char **i;
+ char **p;
int r;
assert(scope >= 0);
if (r < 0)
return r;
- STRV_FOREACH(i, files) {
- _cleanup_free_ char *buf = NULL;
+ STRV_FOREACH(p, files) {
_cleanup_fclose_ FILE *f;
- const char *p;
-
- if (root_dir)
- p = buf = strjoin(root_dir, "/", *i, NULL);
- else
- p = *i;
- f = fopen(p, "re");
+ f = fopen(*p, "re");
if (!f) {
if (errno == ENOENT)
continue;
~ianmdlvl / elogind.git / blobdiff