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-rw-r--r--src/libsystemd/sd-bus/bus-kernel.c65
-rw-r--r--src/libsystemd/sd-bus/bus-kernel.h3
2 files changed, 62 insertions, 6 deletions
diff --git a/src/libsystemd/sd-bus/bus-kernel.c b/src/libsystemd/sd-bus/bus-kernel.c
index 3627411314..2a1b0b424a 100644
--- a/src/libsystemd/sd-bus/bus-kernel.c
+++ b/src/libsystemd/sd-bus/bus-kernel.c
@@ -1338,9 +1338,51 @@ int bus_kernel_create_bus(const char *name, bool world, char **s) {
return fd;
}
-int bus_kernel_create_starter(const char *bus, const char *name) {
+static void bus_kernel_translate_policy(const BusNamePolicy *policy, struct kdbus_item *item)
+{
+ switch (policy->type) {
+ case BUSNAME_POLICY_TYPE_USER:
+ item->policy_access.type = KDBUS_POLICY_ACCESS_USER;
+ item->policy_access.id = policy->uid;
+ break;
+
+ case BUSNAME_POLICY_TYPE_GROUP:
+ item->policy_access.type = KDBUS_POLICY_ACCESS_GROUP;
+ item->policy_access.id = policy->gid;
+ break;
+
+ case BUSNAME_POLICY_TYPE_WORLD:
+ item->policy_access.type = KDBUS_POLICY_ACCESS_WORLD;
+ break;
+
+ default:
+ assert_not_reached("Unknown policy type");
+ }
+
+ switch (policy->access) {
+ case BUSNAME_POLICY_ACCESS_SEE:
+ item->policy_access.access = KDBUS_POLICY_SEE;
+ break;
+
+ case BUSNAME_POLICY_ACCESS_TALK:
+ item->policy_access.access = KDBUS_POLICY_TALK;
+ break;
+
+ case BUSNAME_POLICY_ACCESS_OWN:
+ item->policy_access.access = KDBUS_POLICY_OWN;
+ break;
+
+ default:
+ assert_not_reached("Unknown policy access");
+ }
+}
+
+int bus_kernel_create_starter(const char *bus, const char *name, BusNamePolicy *policy) {
struct kdbus_cmd_hello *hello;
struct kdbus_item *n;
+ size_t policy_cnt = 0;
+ BusNamePolicy *po;
+ size_t size;
char *p;
int fd;
@@ -1354,16 +1396,29 @@ int bus_kernel_create_starter(const char *bus, const char *name) {
if (fd < 0)
return -errno;
- hello = alloca0(ALIGN8(offsetof(struct kdbus_cmd_hello, items) +
- offsetof(struct kdbus_item, str) +
- strlen(name) + 1));
+ LIST_FOREACH(policy, po, policy)
+ policy_cnt++;
+
+ size = ALIGN8(offsetof(struct kdbus_cmd_hello, items)) +
+ ALIGN8(offsetof(struct kdbus_item, str) + strlen(name) + 1) +
+ policy_cnt * ALIGN8(offsetof(struct kdbus_item, policy_access) + sizeof(struct kdbus_policy_access));
+
+ hello = alloca0(size);
n = hello->items;
strcpy(n->str, name);
n->size = offsetof(struct kdbus_item, str) + strlen(n->str) + 1;
n->type = KDBUS_ITEM_NAME;
+ n = KDBUS_ITEM_NEXT(n);
+
+ LIST_FOREACH(policy, po, policy) {
+ n->type = KDBUS_ITEM_POLICY_ACCESS;
+ n->size = offsetof(struct kdbus_item, policy_access) + sizeof(struct kdbus_policy_access);
+ bus_kernel_translate_policy(po, n);
+ n = KDBUS_ITEM_NEXT(n);
+ }
- hello->size = ALIGN8(offsetof(struct kdbus_cmd_hello, items) + n->size);
+ hello->size = size;
hello->conn_flags = KDBUS_HELLO_ACTIVATOR;
hello->pool_size = KDBUS_POOL_SIZE;
diff --git a/src/libsystemd/sd-bus/bus-kernel.h b/src/libsystemd/sd-bus/bus-kernel.h
index 8db418a14d..c4722cbac6 100644
--- a/src/libsystemd/sd-bus/bus-kernel.h
+++ b/src/libsystemd/sd-bus/bus-kernel.h
@@ -23,6 +23,7 @@
#include <stdbool.h>
+#include "busname.h"
#include "sd-bus.h"
#define KDBUS_ITEM_NEXT(item) \
@@ -65,7 +66,7 @@ int bus_kernel_read_message(sd_bus *bus, bool hint_priority, int64_t priority);
int bus_kernel_create_bus(const char *name, bool world, char **s);
int bus_kernel_create_domain(const char *name, char **s);
-int bus_kernel_create_starter(const char *bus, const char *name);
+int bus_kernel_create_starter(const char *bus, const char *name, BusNamePolicy *policy);
int bus_kernel_create_monitor(const char *bus);
int bus_kernel_pop_memfd(sd_bus *bus, void **address, size_t *mapped, size_t *allocated);