10633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#ifndef __LINUX_NETLINK_H 20633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define __LINUX_NETLINK_H 30633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 49044a4547d73df5c41fd53c83e5ccc2a59200797Stephen Hemminger#include <linux/socket.h> /* for __kernel_sa_family_t */ 50633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#include <linux/types.h> 60633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 70633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NETLINK_ROUTE 0 /* Routing/device hook */ 81d35a1273d97bf140fc0c770e58933cf1e9bb1b1Stephen Hemminger#define NETLINK_UNUSED 1 /* Unused number */ 90633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */ 100633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NETLINK_FIREWALL 3 /* Firewalling hook */ 11a08d2590a042f8173713cb3b1bf7bb7aeb3ce584Stephen Hemminger#define NETLINK_SOCK_DIAG 4 /* socket monitoring */ 120633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */ 130633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NETLINK_XFRM 6 /* ipsec */ 140633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NETLINK_SELINUX 7 /* SELinux event notifications */ 15351efcde4e62967362a10b29f3b701cfecd7cdfcshemminger#define NETLINK_ISCSI 8 /* Open-iSCSI */ 160633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NETLINK_AUDIT 9 /* auditing */ 176864c1e7890c65dd2ee037809f772790b04792b4shemminger#define NETLINK_FIB_LOOKUP 10 182034ee975057937855cab33768b27977dcd4feaeshemminger#define NETLINK_CONNECTOR 11 196864c1e7890c65dd2ee037809f772790b04792b4shemminger#define NETLINK_NETFILTER 12 /* netfilter subsystem */ 200633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NETLINK_IP6_FW 13 210633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NETLINK_DNRTMSG 14 /* DECnet routing messages */ 22d639d9d18b2ef5a43cda5424830005333acfb288osdl.net!shemminger#define NETLINK_KOBJECT_UEVENT 15 /* Kernel messages to userspace */ 232034ee975057937855cab33768b27977dcd4feaeshemminger#define NETLINK_GENERIC 16 24ead2ba7008c9db02954dae6f180aed8770a0560dStephen Hemminger/* leave room for NETLINK_DM (DM Events) */ 25ead2ba7008c9db02954dae6f180aed8770a0560dStephen Hemminger#define NETLINK_SCSITRANSPORT 18 /* SCSI Transports */ 26de3d12f48ac1869fc9f9cb442b2d692b027d8a14Stephen Hemminger#define NETLINK_ECRYPTFS 19 27e760a19a437997820f16846636c0db23faa6d3baStephen Hemminger#define NETLINK_RDMA 20 289044a4547d73df5c41fd53c83e5ccc2a59200797Stephen Hemminger#define NETLINK_CRYPTO 21 /* Crypto layer */ 290633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 30a08d2590a042f8173713cb3b1bf7bb7aeb3ce584Stephen Hemminger#define NETLINK_INET_DIAG NETLINK_SOCK_DIAG 31a08d2590a042f8173713cb3b1bf7bb7aeb3ce584Stephen Hemminger 320633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define MAX_LINKS 32 330633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 34ab322673298bd0b8927cdd9d11f3d36af5941b93Stephen Hemmingerstruct sockaddr_nl { 35707f612c00a91fe3c17d7af5319e423545a496c5Stephen Hemminger __kernel_sa_family_t nl_family; /* AF_NETLINK */ 360633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger unsigned short nl_pad; /* zero */ 37de3d12f48ac1869fc9f9cb442b2d692b027d8a14Stephen Hemminger __u32 nl_pid; /* port ID */ 380633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger __u32 nl_groups; /* multicast groups mask */ 390633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger}; 400633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 41ab322673298bd0b8927cdd9d11f3d36af5941b93Stephen Hemmingerstruct nlmsghdr { 420633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger __u32 nlmsg_len; /* Length of message including header */ 430633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger __u16 nlmsg_type; /* Message content */ 440633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger __u16 nlmsg_flags; /* Additional flags */ 450633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger __u32 nlmsg_seq; /* Sequence number */ 46de3d12f48ac1869fc9f9cb442b2d692b027d8a14Stephen Hemminger __u32 nlmsg_pid; /* Sending process port ID */ 470633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger}; 480633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 490633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger/* Flags values */ 500633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 510633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_REQUEST 1 /* It is request message. */ 520633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_MULTI 2 /* Multipart message, terminated by NLMSG_DONE */ 530633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_ACK 4 /* Reply with ack, with zero or error code */ 540633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_ECHO 8 /* Echo this request */ 55707f612c00a91fe3c17d7af5319e423545a496c5Stephen Hemminger#define NLM_F_DUMP_INTR 16 /* Dump was inconsistent due to sequence change */ 560633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 570633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger/* Modifiers to GET request */ 580633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_ROOT 0x100 /* specify tree root */ 590633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_MATCH 0x200 /* return all matching */ 600633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_ATOMIC 0x400 /* atomic GET */ 610633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_DUMP (NLM_F_ROOT|NLM_F_MATCH) 620633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 630633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger/* Modifiers to NEW request */ 640633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_REPLACE 0x100 /* Override existing */ 650633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_EXCL 0x200 /* Do not touch, if it exists */ 660633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_CREATE 0x400 /* Create, if it does not exist */ 670633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLM_F_APPEND 0x800 /* Add to end of list */ 680633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 690633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger/* 700633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 4.4BSD ADD NLM_F_CREATE|NLM_F_EXCL 710633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 4.4BSD CHANGE NLM_F_REPLACE 720633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 730633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger True CHANGE NLM_F_CREATE|NLM_F_REPLACE 740633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger Append NLM_F_CREATE 750633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger Check NLM_F_EXCL 760633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger */ 770633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 788552b387df5ff1c1df2b0a8e6585b53928838471Stephen Hemminger#define NLMSG_ALIGNTO 4U 790633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) ) 8009954dc61adc3051cbb2127e2bfcf692502c8306shemminger#define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr))) 8109954dc61adc3051cbb2127e2bfcf692502c8306shemminger#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(NLMSG_HDRLEN)) 820633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len)) 830633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_DATA(nlh) ((void*)(((char*)nlh) + NLMSG_LENGTH(0))) 840633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \ 850633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger (struct nlmsghdr*)(((char*)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len))) 860633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \ 870633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \ 880633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger (nlh)->nlmsg_len <= (len)) 890633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len))) 900633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 910633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_NOOP 0x1 /* Nothing. */ 920633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_ERROR 0x2 /* Error */ 930633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_DONE 0x3 /* End of a dump */ 940633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NLMSG_OVERRUN 0x4 /* Data lost */ 950633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 9609954dc61adc3051cbb2127e2bfcf692502c8306shemminger#define NLMSG_MIN_TYPE 0x10 /* < 0x10: reserved control messages */ 9709954dc61adc3051cbb2127e2bfcf692502c8306shemminger 98ab322673298bd0b8927cdd9d11f3d36af5941b93Stephen Hemmingerstruct nlmsgerr { 990633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger int error; 1000633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger struct nlmsghdr msg; 1010633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger}; 1020633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 103351efcde4e62967362a10b29f3b701cfecd7cdfcshemminger#define NETLINK_ADD_MEMBERSHIP 1 104351efcde4e62967362a10b29f3b701cfecd7cdfcshemminger#define NETLINK_DROP_MEMBERSHIP 2 105351efcde4e62967362a10b29f3b701cfecd7cdfcshemminger#define NETLINK_PKTINFO 3 106c40bba6922b470c0fd0c7a7b8b09584527c468e9Stephen Hemminger#define NETLINK_BROADCAST_ERROR 4 107c40bba6922b470c0fd0c7a7b8b09584527c468e9Stephen Hemminger#define NETLINK_NO_ENOBUFS 5 108351efcde4e62967362a10b29f3b701cfecd7cdfcshemminger 109ab322673298bd0b8927cdd9d11f3d36af5941b93Stephen Hemmingerstruct nl_pktinfo { 110351efcde4e62967362a10b29f3b701cfecd7cdfcshemminger __u32 group; 111351efcde4e62967362a10b29f3b701cfecd7cdfcshemminger}; 112351efcde4e62967362a10b29f3b701cfecd7cdfcshemminger 1130633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#define NET_MAJOR 36 /* Major 36 is reserved for networking */ 1140633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 1150633baa17231b777e75b813439c237e3de380cc8osdl.net!shemmingerenum { 1160633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger NETLINK_UNCONNECTED = 0, 1170633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger NETLINK_CONNECTED, 1180633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger}; 1190633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 12009954dc61adc3051cbb2127e2bfcf692502c8306shemminger/* 12109954dc61adc3051cbb2127e2bfcf692502c8306shemminger * <------- NLA_HDRLEN ------> <-- NLA_ALIGN(payload)--> 12209954dc61adc3051cbb2127e2bfcf692502c8306shemminger * +---------------------+- - -+- - - - - - - - - -+- - -+ 12309954dc61adc3051cbb2127e2bfcf692502c8306shemminger * | Header | Pad | Payload | Pad | 12409954dc61adc3051cbb2127e2bfcf692502c8306shemminger * | (struct nlattr) | ing | | ing | 12509954dc61adc3051cbb2127e2bfcf692502c8306shemminger * +---------------------+- - -+- - - - - - - - - -+- - -+ 12609954dc61adc3051cbb2127e2bfcf692502c8306shemminger * <-------------- nlattr->nla_len --------------> 12709954dc61adc3051cbb2127e2bfcf692502c8306shemminger */ 12809954dc61adc3051cbb2127e2bfcf692502c8306shemminger 129ab322673298bd0b8927cdd9d11f3d36af5941b93Stephen Hemmingerstruct nlattr { 13009954dc61adc3051cbb2127e2bfcf692502c8306shemminger __u16 nla_len; 13109954dc61adc3051cbb2127e2bfcf692502c8306shemminger __u16 nla_type; 13209954dc61adc3051cbb2127e2bfcf692502c8306shemminger}; 13309954dc61adc3051cbb2127e2bfcf692502c8306shemminger 1345472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger/* 1355472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger * nla_type (16 bits) 1365472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger * +---+---+-------------------------------+ 1375472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger * | N | O | Attribute Type | 1385472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger * +---+---+-------------------------------+ 1395472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger * N := Carries nested attributes 1405472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger * O := Payload stored in network byte order 1415472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger * 1425472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger * Note: The N and O flag are mutually exclusive. 1435472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger */ 1445472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger#define NLA_F_NESTED (1 << 15) 1455472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger#define NLA_F_NET_BYTEORDER (1 << 14) 1465472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger#define NLA_TYPE_MASK ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER) 1475472ac6f9fab8632b89da31df56419c8423b020dStephen Hemminger 14809954dc61adc3051cbb2127e2bfcf692502c8306shemminger#define NLA_ALIGNTO 4 14909954dc61adc3051cbb2127e2bfcf692502c8306shemminger#define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1)) 15009954dc61adc3051cbb2127e2bfcf692502c8306shemminger#define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr))) 15109954dc61adc3051cbb2127e2bfcf692502c8306shemminger 1520633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger 1530633baa17231b777e75b813439c237e3de380cc8osdl.net!shemminger#endif /* __LINUX_NETLINK_H */ 154