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      1 #ifndef __LINUX_GENERIC_NETLINK_H
      2 #define __LINUX_GENERIC_NETLINK_H
      3 
      4 #include <linux/types.h>
      5 #include <linux/netlink.h>
      6 
      7 #define GENL_NAMSIZ	16	/* length of family name */
      8 
      9 #define GENL_MIN_ID	NLMSG_MIN_TYPE
     10 #define GENL_MAX_ID	1023
     11 
     12 struct genlmsghdr {
     13 	__u8	cmd;
     14 	__u8	version;
     15 	__u16	reserved;
     16 };
     17 
     18 #define GENL_HDRLEN	NLMSG_ALIGN(sizeof(struct genlmsghdr))
     19 
     20 #define GENL_ADMIN_PERM		0x01
     21 #define GENL_CMD_CAP_DO		0x02
     22 #define GENL_CMD_CAP_DUMP	0x04
     23 #define GENL_CMD_CAP_HASPOL	0x08
     24 
     25 /*
     26  * List of reserved static generic netlink identifiers:
     27  */
     28 #define GENL_ID_GENERATE	0
     29 #define GENL_ID_CTRL		NLMSG_MIN_TYPE
     30 
     31 /**************************************************************************
     32  * Controller
     33  **************************************************************************/
     34 
     35 enum {
     36 	CTRL_CMD_UNSPEC,
     37 	CTRL_CMD_NEWFAMILY,
     38 	CTRL_CMD_DELFAMILY,
     39 	CTRL_CMD_GETFAMILY,
     40 	CTRL_CMD_NEWOPS,
     41 	CTRL_CMD_DELOPS,
     42 	CTRL_CMD_GETOPS,
     43 	CTRL_CMD_NEWMCAST_GRP,
     44 	CTRL_CMD_DELMCAST_GRP,
     45 	CTRL_CMD_GETMCAST_GRP, /* unused */
     46 	__CTRL_CMD_MAX,
     47 };
     48 
     49 #define CTRL_CMD_MAX (__CTRL_CMD_MAX - 1)
     50 
     51 enum {
     52 	CTRL_ATTR_UNSPEC,
     53 	CTRL_ATTR_FAMILY_ID,
     54 	CTRL_ATTR_FAMILY_NAME,
     55 	CTRL_ATTR_VERSION,
     56 	CTRL_ATTR_HDRSIZE,
     57 	CTRL_ATTR_MAXATTR,
     58 	CTRL_ATTR_OPS,
     59 	CTRL_ATTR_MCAST_GROUPS,
     60 	__CTRL_ATTR_MAX,
     61 };
     62 
     63 #define CTRL_ATTR_MAX (__CTRL_ATTR_MAX - 1)
     64 
     65 enum {
     66 	CTRL_ATTR_OP_UNSPEC,
     67 	CTRL_ATTR_OP_ID,
     68 	CTRL_ATTR_OP_FLAGS,
     69 	__CTRL_ATTR_OP_MAX,
     70 };
     71 
     72 #define CTRL_ATTR_OP_MAX (__CTRL_ATTR_OP_MAX - 1)
     73 
     74 enum {
     75 	CTRL_ATTR_MCAST_GRP_UNSPEC,
     76 	CTRL_ATTR_MCAST_GRP_NAME,
     77 	CTRL_ATTR_MCAST_GRP_ID,
     78 	__CTRL_ATTR_MCAST_GRP_MAX,
     79 };
     80 
     81 #define CTRL_ATTR_MCAST_GRP_MAX (__CTRL_ATTR_MCAST_GRP_MAX - 1)
     82 
     83 #ifdef __KERNEL__
     84 
     85 /* All generic netlink requests are serialized by a global lock.  */
     86 extern void genl_lock(void);
     87 extern void genl_unlock(void);
     88 
     89 #endif /* __KERNEL__ */
     90 
     91 #endif	/* __LINUX_GENERIC_NETLINK_H */
     92