include/netpacket/netlink.h: Add definitions that will be needed for future NETLINK_CRYPTO support.

include/netpacket/netlink.h

@@ -345,6 +345,33 @@
 #define  RT_SCOPE_HOST        254  /* Route on local host */
 #define  RT_SCOPE_NOWHERE     255  /* Destination does not exist */
 
+/* NETLINK_CRYPTO protocol message types ************************************/
+
+#define CRYPTO_MSG_NEWALG     1
+#define CRYPTO_MSG_DELALG     2
+#define CRYPTO_MSG_UPDATEALG  3
+#define CRYPTO_MSG_GETALG     4
+
+/* Netlink message attributes. */
+
+#define CRYPTOCFGA_UNSPEC           0
+#define CRYPTOCFGA_PRIORITY_VAL     1  /* Argument: uint32_t */
+#define CRYPTOCFGA_REPORT_LARVAL    2  /* Argument: struct crypto_report_larval */
+#define CRYPTOCFGA_REPORT_HASH      3  /* Argument: struct crypto_report_hash */
+#define CRYPTOCFGA_REPORT_BLKCIPHER 4  /* Argument: struct crypto_report_blkcipher */
+#define CRYPTOCFGA_REPORT_AEAD      5  /* Argument: struct crypto_report_aead */
+#define CRYPTOCFGA_REPORT_COMPRESS  6  /* Argument: struct crypto_report_comp */
+#define CRYPTOCFGA_REPORT_RNG       7  /* Argument: struct crypto_report_rng */
+#define CRYPTOCFGA_REPORT_CIPHER    8  /* Argument: struct crypto_report_cipher */
+
+/* Max size of names.  No magic here.  These can be extended as necessary. */
+
+#define CRYPTO_MAX_ALG_NAME   32
+#define CRYPTO_MAX_NAME       32
+
+#define CRYPTO_REPORT_MAXSIZE \
+  (sizeof(struct crypto_user_alg) + sizeof(struct crypto_report_blkcipher))
+
 /****************************************************************************
  * Public Type Definitions
  ****************************************************************************/
@@ -377,6 +404,8 @@ struct nlmsghdr
                           /* Data follows */
 };
 
+/* NETLINK_ROUTE Message Structures *****************************************/
+
 /* RTM_NEWLINK, RTM_DELLINK, RTM_GETLINK
  *
  * Create, remove or get information about a specific network interface.
@@ -457,6 +486,69 @@ struct rtmsg
   uint32_t rtm_flags;
 };
 
+/* NETLINK_CRYPTO Message Structures ***********\*****************************/
+
+struct crypto_user_alg
+{
+  char cru_name[CRYPTO_MAX_ALG_NAME];
+  char cru_driver_name[CRYPTO_MAX_ALG_NAME];
+  char cru_module_name[CRYPTO_MAX_ALG_NAME];
+  uint32_t cru_type;
+  uint32_t cru_mask;
+  uint32_t cru_refcnt;
+  uint32_t cru_flags;
+};
+
+struct crypto_report_larval
+{
+  char type[CRYPTO_MAX_NAME];
+};
+
+struct crypto_report_hash
+{
+  char type[CRYPTO_MAX_NAME];
+  size_t blocksize;
+  size_t digestsize;
+};
+
+struct crypto_report_cipher
+{
+  char type[CRYPTO_MAX_ALG_NAME];
+  size_t blocksize;
+  size_t min_keysize;
+  size_t max_keysize;
+};
+
+struct crypto_report_blkcipher
+{
+  char type[CRYPTO_MAX_NAME];
+  char geniv[CRYPTO_MAX_NAME];
+  size_t blocksize;
+  size_t min_keysize;
+  size_t max_keysize;
+  size_t ivsize;
+};
+
+struct crypto_report_aead
+{
+  char type[CRYPTO_MAX_NAME];
+  char geniv[CRYPTO_MAX_NAME];
+  size_t blocksize;
+  size_t maxauthsize;
+  size_t ivsize;
+};
+
+struct crypto_report_comp
+{
+  char type[CRYPTO_MAX_NAME];
+};
+
+struct crypto_report_rng
+{
+  char type[CRYPTO_MAX_NAME];
+  size_t seedsize;
+};
+
 /****************************************************************************
  * Public Function Prototypes
  ****************************************************************************/

net/netlink/Kconfig

@@ -55,6 +55,17 @@ config NETLINK_DISABLE_GETROUTE
 		RTM_GETROUTE is used to retrieve routing tables.
 
 endif # NETLINK_ROUTE
+
+config NETLINK_CRYPTO
+	bool "Netlink Crypto protocol"
+	default n
+	depends on EXPERIMENTAL
+	---help---
+		Support the NETLINK_CRYPTO protocol option.
+
+if NETLINK_CRYPTO
+
+endif # NETLINK_CRYPTO
 endmenu # Netlink Protocols
 endif # NET_NETLINK
 endmenu # Netlink Socket Support