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-rw-r--r--src/core/automount.c3
-rw-r--r--src/core/busname.c3
-rw-r--r--src/core/device.c2
-rw-r--r--src/core/load-fragment.c2
-rw-r--r--src/core/mount.c3
-rw-r--r--src/core/scope.c2
-rw-r--r--src/core/slice.c2
-rw-r--r--src/core/swap.c3
-rw-r--r--src/core/unit.c6
-rw-r--r--src/core/unit.h6
-rw-r--r--src/shared/install.c69
-rw-r--r--src/shared/install.h3
12 files changed, 75 insertions, 29 deletions
diff --git a/src/core/automount.c b/src/core/automount.c
index 7c55d7bc49..1239a0efc6 100644
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -1050,9 +1050,6 @@ const UnitVTable automount_vtable = {
"Automount\0"
"Install\0",
- .no_alias = true,
- .no_instances = true,
-
.init = automount_init,
.load = automount_load,
.done = automount_done,
diff --git a/src/core/busname.c b/src/core/busname.c
index f4f433340c..e7b7b5c012 100644
--- a/src/core/busname.c
+++ b/src/core/busname.c
@@ -1028,9 +1028,6 @@ const UnitVTable busname_vtable = {
"Install\0",
.private_section = "BusName",
- .no_alias = true,
- .no_instances = true,
-
.init = busname_init,
.done = busname_done,
.load = busname_load,
diff --git a/src/core/device.c b/src/core/device.c
index d01bec53d8..16e56efcc3 100644
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -841,8 +841,6 @@ const UnitVTable device_vtable = {
"Device\0"
"Install\0",
- .no_instances = true,
-
.init = device_init,
.done = device_done,
.load = unit_load_fragment_and_dropin_optional,
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index 31b995aa6a..1a8c03904c 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -3612,7 +3612,7 @@ static int load_from_path(Unit *u, const char *path) {
/* Hmm, no suitable file found? */
return 0;
- if (UNIT_VTABLE(u)->no_alias && set_size(symlink_names) > 1) {
+ if (!unit_type_may_alias(u->type) && set_size(symlink_names) > 1) {
log_unit_warning(u, "Unit type of %s does not support alias names, refusing loading via symlink.", u->id);
return -ELOOP;
}
diff --git a/src/core/mount.c b/src/core/mount.c
index cc07873b24..c8a898e4dc 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -1839,9 +1839,6 @@ const UnitVTable mount_vtable = {
"Install\0",
.private_section = "Mount",
- .no_alias = true,
- .no_instances = true,
-
.init = mount_init,
.load = mount_load,
.done = mount_done,
diff --git a/src/core/scope.c b/src/core/scope.c
index 7078d1f7e9..238f63a729 100644
--- a/src/core/scope.c
+++ b/src/core/scope.c
@@ -569,8 +569,6 @@ const UnitVTable scope_vtable = {
"Install\0",
.private_section = "Scope",
- .no_alias = true,
- .no_instances = true,
.can_transient = true,
.init = scope_init,
diff --git a/src/core/slice.c b/src/core/slice.c
index 63a77c9bca..c7700b8857 100644
--- a/src/core/slice.c
+++ b/src/core/slice.c
@@ -309,8 +309,6 @@ const UnitVTable slice_vtable = {
"Install\0",
.private_section = "Slice",
- .no_alias = true,
- .no_instances = true,
.can_transient = true,
.init = slice_init,
diff --git a/src/core/swap.c b/src/core/swap.c
index d8802470d2..c018648d87 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -1465,9 +1465,6 @@ const UnitVTable swap_vtable = {
"Install\0",
.private_section = "Swap",
- .no_alias = true,
- .no_instances = true,
-
.init = swap_init,
.load = swap_load,
.done = swap_done,
diff --git a/src/core/unit.c b/src/core/unit.c
index 64466e4fb4..4ace6b075b 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -193,7 +193,7 @@ int unit_add_name(Unit *u, const char *text) {
if (r < 0)
return r;
- if (i && unit_vtable[t]->no_instances)
+ if (i && !unit_type_may_template(t))
return -EINVAL;
/* Ensure that this unit is either instanced or not instanced,
@@ -202,7 +202,7 @@ int unit_add_name(Unit *u, const char *text) {
if (u->type != _UNIT_TYPE_INVALID && !u->instance != !i)
return -EINVAL;
- if (unit_vtable[t]->no_alias && !set_isempty(u->names))
+ if (!unit_type_may_alias(t) && !set_isempty(u->names))
return -EEXIST;
if (hashmap_size(u->manager->units) >= MANAGER_MAX_NAMES)
@@ -720,7 +720,7 @@ int unit_merge(Unit *u, Unit *other) {
if (!u->instance != !other->instance)
return -EINVAL;
- if (UNIT_VTABLE(u)->no_alias) /* Merging only applies to unit names that support aliases */
+ if (!unit_type_may_alias(u->type)) /* Merging only applies to unit names that support aliases */
return -EEXIST;
if (other->load_state != UNIT_STUB &&
diff --git a/src/core/unit.h b/src/core/unit.h
index 5909652976..be62e88421 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -416,12 +416,6 @@ struct UnitVTable {
/* The strings to print in status messages */
UnitStatusMessageFormats status_message_formats;
- /* Can units of this type have multiple names? */
- bool no_alias:1;
-
- /* Instances make no sense for this type */
- bool no_instances:1;
-
/* True if transient units of this type are OK */
bool can_transient:1;
};
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)
diff --git a/src/shared/install.h b/src/shared/install.h
index 4ffc5a21f2..5812447c5b 100644
--- a/src/shared/install.h
+++ b/src/shared/install.h
@@ -138,6 +138,9 @@ static inline bool UNIT_FILE_INSTALL_INFO_HAS_ALSO(UnitFileInstallInfo *i) {
return !strv_isempty(i->also);
}
+bool unit_type_may_alias(UnitType type) _const_;
+bool unit_type_may_template(UnitType type) _const_;
+
int unit_file_enable(
UnitFileScope scope,
bool runtime,
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-16 18:45:45 +0000