netlink.h File Reference

#include "../sys/socket.h"

Go to the source code of this file.

Data Structures
struct	sockaddr_nl
struct	nlmsghdr
struct	nlmsgerr

Macros
#define	NLMSG_NOOP   0x1
#define	NLMSG_ERROR   0x2
#define	NLMSG_DONE   0x3
#define	NLMSG_OVERRUN   0x4
#define	NETLINK_ROUTE   0
#define	NLMSG_ALIGNTO   4U
#define	NLMSG_ALIGN(len)   (((len) + NLMSG_ALIGNTO - 1) & ~(NLMSG_ALIGNTO - 1))
#define	NLMSG_HDRLEN   ((int)NLMSG_ALIGN(sizeof(struct nlmsghdr)))
#define	NLMSG_LENGTH(len)   ((len) + NLMSG_HDRLEN)
#define	NLMSG_SPACE(len)   NLMSG_ALIGN(NLMSG_LENGTH(len))
#define	NLMSG_DATA(nlh)   ((void*)(((char*)nlh) + NLMSG_LENGTH(0)))
#define	NLMSG_NEXT(nlh, len)
#define	NLMSG_OK(nlh, len)
#define	NLMSG_PAYLOAD(nlh, len)   ((nlh)->nlmsg_len - NLMSG_SPACE((len)))

Macro Definition Documentation

NLMSG_NOOP

#define NLMSG_NOOP   0x1

NLMSG_ERROR

#define NLMSG_ERROR   0x2

NLMSG_DONE

#define NLMSG_DONE   0x3

NLMSG_OVERRUN

#define NLMSG_OVERRUN   0x4

NETLINK_ROUTE

#define NETLINK_ROUTE   0

NLMSG_ALIGNTO

#define NLMSG_ALIGNTO   4U

NLMSG_ALIGN

#define NLMSG_ALIGN

(

len

)

(((len) + NLMSG_ALIGNTO - 1) & ~(NLMSG_ALIGNTO - 1))

NLMSG_HDRLEN

#define NLMSG_HDRLEN   ((int)NLMSG_ALIGN(sizeof(struct nlmsghdr)))

NLMSG_LENGTH

#define NLMSG_LENGTH

(

len

)

((len) + NLMSG_HDRLEN)

NLMSG_SPACE

#define NLMSG_SPACE

(

len

)

NLMSG_ALIGN(NLMSG_LENGTH(len))

NLMSG_DATA

#define NLMSG_DATA

(

nlh

)

((void*)(((char*)nlh) + NLMSG_LENGTH(0)))

NLMSG_NEXT

#define NLMSG_NEXT	(		nlh,
			len
	)

Value:

                            ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
                            (struct nlmsghdr*)(((char*)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len)))

NLMSG_OK

#define NLMSG_OK	(		nlh,
			len
	)

Value:

                            ((len) >= (int)sizeof(struct nlmsghdr) && \
                            (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
                            (nlh)->nlmsg_len <= (len))

NLMSG_PAYLOAD

#define NLMSG_PAYLOAD	(		nlh,
			len
	)		((nlh)->nlmsg_len - NLMSG_SPACE((len)))