diff options
Diffstat (limited to 'src/shared/install.c')
| -rw-r--r-- | src/shared/install.c | 69 |
1 files changed, 68 insertions, 1 deletions
diff --git a/src/shared/install.c b/src/shared/install.c index 931d3e2907..f02d81504f 100644 --- a/src/shared/install.c +++ b/src/shared/install.c @@ -68,6 +68,25 @@ typedef struct { static int unit_file_lookup_state(UnitFileScope scope, const LookupPaths *paths, const char *name, UnitFileState *ret); +bool unit_type_may_alias(UnitType type) { + return IN_SET(type, + UNIT_SERVICE, + UNIT_SOCKET, + UNIT_TARGET, + UNIT_DEVICE, + UNIT_TIMER, + UNIT_PATH); +} + +bool unit_type_may_template(UnitType type) { + return IN_SET(type, + UNIT_SERVICE, + UNIT_SOCKET, + UNIT_TARGET, + UNIT_TIMER, + UNIT_PATH); +} + static int in_search_path(const LookupPaths *p, const char *path) { _cleanup_free_ char *parent = NULL; char **i; @@ -898,6 +917,36 @@ fail: return r; } +static int config_parse_alias( + 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) { + + const char *name; + UnitType type; + + assert(filename); + assert(lvalue); + assert(rvalue); + + name = basename(filename); + type = unit_name_to_type(name); + if (!unit_type_may_alias(type)) + return log_syntax(unit, LOG_WARNING, filename, line, 0, + "Aliases are not allowed for %s units, ignoring.", + unit_type_to_string(type)); + + return config_parse_strv(unit, filename, line, section, section_line, + lvalue, ltype, rvalue, data, userdata); +} + static int config_parse_also( const char *unit, const char *filename, @@ -954,6 +1003,7 @@ static int config_parse_default_instance( void *userdata) { UnitFileInstallInfo *i = data; + const char *name; char *printed; int r; @@ -961,6 +1011,15 @@ static int config_parse_default_instance( assert(lvalue); assert(rvalue); + name = basename(filename); + if (unit_name_is_valid(name, UNIT_NAME_INSTANCE)) + /* When enabling an instance, we might be using a template unit file, + * but we should ignore DefaultInstance silently. */ + return 0; + if (!unit_name_is_valid(name, UNIT_NAME_TEMPLATE)) + return log_syntax(unit, LOG_WARNING, filename, line, 0, + "DefaultInstance only makes sense for template units, ignoring."); + r = install_full_printf(i, rvalue, &printed); if (r < 0) return r; @@ -983,7 +1042,7 @@ static int unit_file_load( SearchFlags flags) { const ConfigTableItem items[] = { - { "Install", "Alias", config_parse_strv, 0, &info->aliases }, + { "Install", "Alias", config_parse_alias, 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 }, @@ -991,6 +1050,8 @@ static int unit_file_load( {} }; + const char *name; + UnitType type; _cleanup_fclose_ FILE *f = NULL; _cleanup_close_ int fd = -1; struct stat st; @@ -1000,6 +1061,12 @@ static int unit_file_load( assert(info); assert(path); + name = basename(path); + type = unit_name_to_type(name); + if (unit_name_is_valid(name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) && + !unit_type_may_template(type)) + return log_error_errno(EINVAL, "Unit type %s cannot be templated.", unit_type_to_string(type)); + if (!(flags & SEARCH_LOAD)) { r = lstat(path, &st); if (r < 0) |