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-rw-r--r--src/libsystemd/sd-bus/bus-kernel.c4
-rw-r--r--src/libsystemd/sd-bus/kdbus.h79
2 files changed, 29 insertions, 54 deletions
diff --git a/src/libsystemd/sd-bus/bus-kernel.c b/src/libsystemd/sd-bus/bus-kernel.c
index eec62aca9c..3627411314 100644
--- a/src/libsystemd/sd-bus/bus-kernel.c
+++ b/src/libsystemd/sd-bus/bus-kernel.c
@@ -1309,7 +1309,7 @@ int bus_kernel_create_bus(const char *name, bool world, char **s) {
n->type = KDBUS_ITEM_MAKE_NAME;
make->size += ALIGN8(n->size);
- make->flags = KDBUS_MAKE_POLICY_OPEN | (world ? KDBUS_MAKE_ACCESS_WORLD : 0);
+ make->flags = world ? KDBUS_MAKE_ACCESS_WORLD : 0;
if (ioctl(fd, KDBUS_CMD_BUS_MAKE, make) < 0) {
close_nointr_nofail(fd);
@@ -1410,7 +1410,7 @@ int bus_kernel_create_domain(const char *name, char **s) {
n->type = KDBUS_ITEM_MAKE_NAME;
make->size = ALIGN8(offsetof(struct kdbus_cmd_make, items) + n->size);
- make->flags = KDBUS_MAKE_POLICY_OPEN | KDBUS_MAKE_ACCESS_WORLD;
+ make->flags = KDBUS_MAKE_ACCESS_WORLD;
if (ioctl(fd, KDBUS_CMD_DOMAIN_MAKE, make) < 0) {
close_nointr_nofail(fd);
diff --git a/src/libsystemd/sd-bus/kdbus.h b/src/libsystemd/sd-bus/kdbus.h
index c9a8940159..4559831426 100644
--- a/src/libsystemd/sd-bus/kdbus.h
+++ b/src/libsystemd/sd-bus/kdbus.h
@@ -190,33 +190,14 @@ struct kdbus_name {
* @bits: Access to grant. One of KDBUS_POLICY_*
* @id: For KDBUS_POLICY_ACCESS_USER, the uid
* For KDBUS_POLICY_ACCESS_GROUP, the gid
- *
- * Embedded in:
- * struct kdbus_policy
*/
struct kdbus_policy_access {
__u64 type; /* USER, GROUP, WORLD */
- __u64 bits; /* RECV, SEND, OWN */
+ __u64 access; /* OWN, TALK, SEE */
__u64 id; /* uid, gid, 0 */
};
/**
- * struct kdbus_policy - a policy item
- * @access: Policy access details
- * @name: Well-known name to grant access to
- *
- * Attached to:
- * KDBUS_POLICY_ACCESS
- * KDBUS_ITEM_POLICY_NAME
- */
-struct kdbus_policy {
- union {
- struct kdbus_policy_access access;
- char name[0];
- };
-};
-
-/**
* enum kdbus_item_type - item types to chain data in a list
* @_KDBUS_ITEM_NULL: Uninitialized/invalid
* @_KDBUS_ITEM_USER_BASE: Start of user items
@@ -252,8 +233,7 @@ struct kdbus_policy {
* @KDBUS_ITEM_AUDIT: The audit IDs
* @KDBUS_ITEM_CONN_NAME: The connection's human-readable name (debugging)
* @_KDBUS_ITEM_POLICY_BASE: Start of policy items
- * @KDBUS_ITEM_POLICY_NAME: Policy in struct kdbus_policy
- * @KDBUS_ITEM_POLICY_ACCESS: Policy in struct kdbus_policy
+ * @KDBUS_ITEM_POLICY_ACCESS: Policy access block
* @_KDBUS_ITEM_KERNEL_BASE: Start of kernel-generated message items
* @KDBUS_ITEM_NAME_ADD: Notify in struct kdbus_notify_name_change
* @KDBUS_ITEM_NAME_REMOVE: Notify in struct kdbus_notify_name_change
@@ -294,8 +274,7 @@ enum kdbus_item_type {
KDBUS_ITEM_CONN_NAME,
_KDBUS_ITEM_POLICY_BASE = 0x2000,
- KDBUS_ITEM_POLICY_NAME = _KDBUS_ITEM_POLICY_BASE,
- KDBUS_ITEM_POLICY_ACCESS,
+ KDBUS_ITEM_POLICY_ACCESS = _KDBUS_ITEM_POLICY_BASE,
_KDBUS_ITEM_KERNEL_BASE = 0x8000,
KDBUS_ITEM_NAME_ADD = _KDBUS_ITEM_KERNEL_BASE,
@@ -329,8 +308,7 @@ enum kdbus_item_type {
* KDBUS_ITEM_NAME_CHANGE
* @id_change: KDBUS_ITEM_ID_ADD
* KDBUS_ITEM_ID_REMOVE
- * @policy: KDBUS_ITEM_POLICY_NAME
- * KDBUS_ITEM_POLICY_ACCESS
+ * @policy: KDBUS_ITEM_POLICY_ACCESS
*/
struct kdbus_item {
__u64 size;
@@ -353,7 +331,7 @@ struct kdbus_item {
int fds[0];
struct kdbus_notify_name_change name_change;
struct kdbus_notify_id_change id_change;
- struct kdbus_policy policy;
+ struct kdbus_policy_access policy_access;
};
};
@@ -483,44 +461,37 @@ enum kdbus_policy_access_type {
/**
* enum kdbus_policy_access_flags - mode flags
- * @KDBUS_POLICY_RECV: Allow receive
- * @KDBUS_POLICY_SEND: Allow send
* @KDBUS_POLICY_OWN: Allow to own a well-known name
+ * Implies KDBUS_POLICY_TALK and KDBUS_POLICY_SEE
+ * @KDBUS_POLICY_TALK: Allow communication to a well-known name
+ * Implies KDBUS_POLICY_SEE
+ * @KDBUS_POLICY_SEE: Allow to see a well-known name
*/
enum kdbus_policy_type {
- KDBUS_POLICY_RECV = 1 << 2,
- KDBUS_POLICY_SEND = 1 << 1,
- KDBUS_POLICY_OWN = 1 << 0,
+ KDBUS_POLICY_SEE = 0,
+ KDBUS_POLICY_TALK,
+ KDBUS_POLICY_OWN,
};
/**
- * struct kdbus_cmd_policy - a series of policies to upload
- * @size: The total size of the structure
- * @policies: The policies to upload
- *
- * A KDBUS_POLICY_NAME must always preceeds a KDBUS_POLICY_ACCESS entry.
- * A new KDBUS_POLICY_NAME can be added after KDBUS_POLICY_ACCESS for
- * chaining multiple policies together.
- */
-struct kdbus_cmd_policy {
- __u64 size;
- struct kdbus_item policies[0];
-} __attribute__((aligned(8)));
-
-/**
* enum kdbus_hello_flags - flags for struct kdbus_cmd_hello
* @KDBUS_HELLO_ACCEPT_FD: The connection allows the receiving of
* any passed file descriptors
* @KDBUS_HELLO_ACTIVATOR: Special-purpose connection which registers
* a well-know name for a process to be started
* when traffic arrives
+ * @KDBUS_HELLO_POLICY_HOLDER: Special-purpose connection which registers
+ * policy entries for one or multiple names. The
+ * provided names are not activated, and are not
+ * registered with the name database
* @KDBUS_HELLO_MONITOR: Special-purpose connection to monitor
* bus traffic
*/
enum kdbus_hello_flags {
KDBUS_HELLO_ACCEPT_FD = 1 << 0,
KDBUS_HELLO_ACTIVATOR = 1 << 1,
- KDBUS_HELLO_MONITOR = 1 << 2,
+ KDBUS_HELLO_POLICY_HOLDER = 1 << 2,
+ KDBUS_HELLO_MONITOR = 1 << 3,
};
/**
@@ -584,11 +555,14 @@ struct kdbus_cmd_hello {
struct kdbus_item items[0];
} __attribute__((aligned(8)));
-/* Flags for KDBUS_CMD_{BUS,EP,NS}_MAKE */
+/**
+ * enum kdbus_make_flags - Flags for KDBUS_CMD_{BUS,EP,NS}_MAKE
+ * @KDBUS_MAKE_ACCESS_GROUP: Make the device node group-accessible
+ * @KDBUS_MAKE_ACCESS_WORLD: Make the device node world-accessible
+ */
enum kdbus_make_flags {
KDBUS_MAKE_ACCESS_GROUP = 1 << 0,
KDBUS_MAKE_ACCESS_WORLD = 1 << 1,
- KDBUS_MAKE_POLICY_OPEN = 1 << 2,
};
/**
@@ -874,8 +848,6 @@ enum kdbus_ioctl_type {
KDBUS_CMD_MATCH_ADD = _IOW (KDBUS_IOC_MAGIC, 0x70, struct kdbus_cmd_match),
KDBUS_CMD_MATCH_REMOVE = _IOW (KDBUS_IOC_MAGIC, 0x71, struct kdbus_cmd_match),
- KDBUS_CMD_EP_POLICY_SET = _IOW (KDBUS_IOC_MAGIC, 0x80, struct kdbus_cmd_policy),
-
KDBUS_CMD_MEMFD_NEW = _IOWR(KDBUS_IOC_MAGIC, 0xc0, struct kdbus_cmd_memfd_make),
KDBUS_CMD_MEMFD_SIZE_GET = _IOR (KDBUS_IOC_MAGIC, 0xc1, __u64 *),
KDBUS_CMD_MEMFD_SIZE_SET = _IOW (KDBUS_IOC_MAGIC, 0xc2, __u64 *),
@@ -891,6 +863,9 @@ enum kdbus_ioctl_type {
* @EADDRNOTAVAIL: A message flagged not to activate a service, addressed
* a service which is not currently running.
* @EAGAIN: No messages are queued at the moment.
+ * @EALREADY: A requested name is already owned by the connection,
+ * a connection is already disconnected, memfd is already
+ * sealed or has the requested size.
* @EBADF: File descriptors passed with the message are not valid.
* @EBADFD: A bus connection is in a corrupted state.
* @EBADMSG: Passed data contains a combination of conflicting or
@@ -947,7 +922,7 @@ enum kdbus_ioctl_type {
* @EPIPE: When sending a message, a synchronous reply from the
* receiving connection was expected but the connection
* died before answering.
- * @ESHUTDOWN: A domain or endpoint is currently shutting down;
+ * @ESHUTDOWN: A domain, bus or endpoint is currently shutting down;
* no further operations will be possible.
* @ESRCH: A requested well-known bus name is not found.
* @ETIMEDOUT: A synchronous wait for a message reply did not arrive
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-08 20:45:10 +0000