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111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
#ifndef __LINUX_NETLINK_H
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#define __LINUX_NETLINK_H
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#include <linux/socket.h> /* for sa_family_t */
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#include <linux/types.h>
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#define NETLINK_ROUTE 0 /* Routing/device hook */
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#define NETLINK_W1 1 /* 1-wire subsystem */
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#define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */
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#define NETLINK_FIREWALL 3 /* Firewalling hook */
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#define NETLINK_INET_DIAG 4 /* INET socket monitoring */
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#define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */
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#define NETLINK_XFRM 6 /* ipsec */
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#define NETLINK_SELINUX 7 /* SELinux event notifications */
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#define NETLINK_ISCSI 8 /* Open-iSCSI */
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#define NETLINK_AUDIT 9 /* auditing */
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#define NETLINK_FIB_LOOKUP 10
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#define NETLINK_NETFILTER 12 /* netfilter subsystem */
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#define NETLINK_IP6_FW 13
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#define NETLINK_DNRTMSG 14 /* DECnet routing messages */
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#define NETLINK_KOBJECT_UEVENT 15 /* Kernel messages to userspace */
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#define MAX_LINKS 32
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struct sockaddr_nl
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{
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sa_family_t nl_family; /* AF_NETLINK */
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unsigned short nl_pad; /* zero */
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__u32 nl_pid; /* process pid */
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__u32 nl_groups; /* multicast groups mask */
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};
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struct nlmsghdr
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{
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__u32 nlmsg_len; /* Length of message including header */
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__u16 nlmsg_type; /* Message content */
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__u16 nlmsg_flags; /* Additional flags */
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__u32 nlmsg_seq; /* Sequence number */
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__u32 nlmsg_pid; /* Sending process PID */
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};
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/* Flags values */
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#define NLM_F_REQUEST 1 /* It is request message. */
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#define NLM_F_MULTI 2 /* Multipart message, terminated by NLMSG_DONE */
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#define NLM_F_ACK 4 /* Reply with ack, with zero or error code */
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#define NLM_F_ECHO 8 /* Echo this request */
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/* Modifiers to GET request */
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#define NLM_F_ROOT 0x100 /* specify tree root */
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#define NLM_F_MATCH 0x200 /* return all matching */
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#define NLM_F_ATOMIC 0x400 /* atomic GET */
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#define NLM_F_DUMP (NLM_F_ROOT|NLM_F_MATCH)
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/* Modifiers to NEW request */
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#define NLM_F_REPLACE 0x100 /* Override existing */
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#define NLM_F_EXCL 0x200 /* Do not touch, if it exists */
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#define NLM_F_CREATE 0x400 /* Create, if it does not exist */
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#define NLM_F_APPEND 0x800 /* Add to end of list */
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/*
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4.4BSD ADD NLM_F_CREATE|NLM_F_EXCL
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4.4BSD CHANGE NLM_F_REPLACE
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True CHANGE NLM_F_CREATE|NLM_F_REPLACE
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Append NLM_F_CREATE
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Check NLM_F_EXCL
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*/
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#define NLMSG_ALIGNTO 4
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#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
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#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(sizeof(struct nlmsghdr)))
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#define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len))
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#define NLMSG_DATA(nlh) ((void*)(((char*)nlh) + NLMSG_LENGTH(0)))
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#define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
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(struct nlmsghdr*)(((char*)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len)))
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#define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \
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(nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
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(nlh)->nlmsg_len <= (len))
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#define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len)))
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#define NLMSG_NOOP 0x1 /* Nothing. */
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#define NLMSG_ERROR 0x2 /* Error */
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#define NLMSG_DONE 0x3 /* End of a dump */
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#define NLMSG_OVERRUN 0x4 /* Data lost */
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struct nlmsgerr
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{
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int error;
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struct nlmsghdr msg;
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};
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#define NETLINK_ADD_MEMBERSHIP 1
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#define NETLINK_DROP_MEMBERSHIP 2
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#define NETLINK_PKTINFO 3
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struct nl_pktinfo
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{
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__u32 group;
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};
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#define NET_MAJOR 36 /* Major 36 is reserved for networking */
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enum {
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NETLINK_UNCONNECTED = 0,
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NETLINK_CONNECTED,
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};
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#endif /* __LINUX_NETLINK_H */
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