/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */#ifndef _UAPI__LINUX_RTNETLINK_H#define _UAPI__LINUX_RTNETLINK_H #include <linux/types.h>#include <linux/netlink.h>#include <linux/if_link.h>#include <linux/if_addr.h>#include <linux/neighbour.h> /* rtnetlink families. Values up to 127 are reserved for real address * families, values above 128 may be used arbitrarily. */#define RTNL_FAMILY_IPMR 128#define RTNL_FAMILY_IP6MR 129#define RTNL_FAMILY_MAX 129 /**** * Routing/neighbour discovery messages. ****/ /* Types of messages */ enum { RTM_BASE = 16,#define RTM_BASE RTM_BASE RTM_NEWLINK = 16,#define RTM_NEWLINK RTM_NEWLINK RTM_DELLINK,#define RTM_DELLINK RTM_DELLINK RTM_GETLINK,#define RTM_GETLINK RTM_GETLINK RTM_SETLINK,#define RTM_SETLINK RTM_SETLINK RTM_NEWADDR = 20,#define RTM_NEWADDR RTM_NEWADDR RTM_DELADDR,#define RTM_DELADDR RTM_DELADDR RTM_GETADDR,#define RTM_GETADDR RTM_GETADDR RTM_NEWROUTE = 24,#define RTM_NEWROUTE RTM_NEWROUTE RTM_DELROUTE,#define RTM_DELROUTE RTM_DELROUTE RTM_GETROUTE,#define RTM_GETROUTE RTM_GETROUTE RTM_NEWNEIGH = 28,#define RTM_NEWNEIGH RTM_NEWNEIGH RTM_DELNEIGH,#define RTM_DELNEIGH RTM_DELNEIGH RTM_GETNEIGH,#define RTM_GETNEIGH RTM_GETNEIGH RTM_NEWRULE = 32,#define RTM_NEWRULE RTM_NEWRULE RTM_DELRULE,#define RTM_DELRULE RTM_DELRULE RTM_GETRULE,#define RTM_GETRULE RTM_GETRULE RTM_NEWQDISC = 36,#define RTM_NEWQDISC RTM_NEWQDISC RTM_DELQDISC,#define RTM_DELQDISC RTM_DELQDISC RTM_GETQDISC,#define RTM_GETQDISC RTM_GETQDISC RTM_NEWTCLASS = 40,#define RTM_NEWTCLASS RTM_NEWTCLASS RTM_DELTCLASS,#define RTM_DELTCLASS RTM_DELTCLASS RTM_GETTCLASS,#define RTM_GETTCLASS RTM_GETTCLASS RTM_NEWTFILTER = 44,#define RTM_NEWTFILTER RTM_NEWTFILTER RTM_DELTFILTER,#define RTM_DELTFILTER RTM_DELTFILTER RTM_GETTFILTER,#define RTM_GETTFILTER RTM_GETTFILTER RTM_NEWACTION = 48,#define RTM_NEWACTION RTM_NEWACTION RTM_DELACTION,#define RTM_DELACTION RTM_DELACTION RTM_GETACTION,#define RTM_GETACTION RTM_GETACTION RTM_NEWPREFIX = 52,#define RTM_NEWPREFIX RTM_NEWPREFIX RTM_NEWMULTICAST = 56,#define RTM_NEWMULTICAST RTM_NEWMULTICAST RTM_DELMULTICAST,#define RTM_DELMULTICAST RTM_DELMULTICAST RTM_GETMULTICAST,#define RTM_GETMULTICAST RTM_GETMULTICAST RTM_NEWANYCAST = 60,#define RTM_NEWANYCAST RTM_NEWANYCAST RTM_DELANYCAST,#define RTM_DELANYCAST RTM_DELANYCAST RTM_GETANYCAST,#define RTM_GETANYCAST RTM_GETANYCAST RTM_NEWNEIGHTBL = 64,#define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL RTM_GETNEIGHTBL = 66,#define RTM_GETNEIGHTBL RTM_GETNEIGHTBL RTM_SETNEIGHTBL,#define RTM_SETNEIGHTBL RTM_SETNEIGHTBL RTM_NEWNDUSEROPT = 68,#define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT RTM_NEWADDRLABEL = 72,#define RTM_NEWADDRLABEL RTM_NEWADDRLABEL RTM_DELADDRLABEL,#define RTM_DELADDRLABEL RTM_DELADDRLABEL RTM_GETADDRLABEL,#define RTM_GETADDRLABEL RTM_GETADDRLABEL RTM_GETDCB = 78,#define RTM_GETDCB RTM_GETDCB RTM_SETDCB,#define RTM_SETDCB RTM_SETDCB RTM_NEWNETCONF = 80,#define RTM_NEWNETCONF RTM_NEWNETCONF RTM_DELNETCONF,#define RTM_DELNETCONF RTM_DELNETCONF RTM_GETNETCONF = 82,#define RTM_GETNETCONF RTM_GETNETCONF RTM_NEWMDB = 84,#define RTM_NEWMDB RTM_NEWMDB RTM_DELMDB = 85,#define RTM_DELMDB RTM_DELMDB RTM_GETMDB = 86,#define RTM_GETMDB RTM_GETMDB RTM_NEWNSID = 88,#define RTM_NEWNSID RTM_NEWNSID RTM_DELNSID = 89,#define RTM_DELNSID RTM_DELNSID RTM_GETNSID = 90,#define RTM_GETNSID RTM_GETNSID RTM_NEWSTATS = 92,#define RTM_NEWSTATS RTM_NEWSTATS RTM_GETSTATS = 94,#define RTM_GETSTATS RTM_GETSTATS RTM_SETSTATS,#define RTM_SETSTATS RTM_SETSTATS RTM_NEWCACHEREPORT = 96,#define RTM_NEWCACHEREPORT RTM_NEWCACHEREPORT RTM_NEWCHAIN = 100,#define RTM_NEWCHAIN RTM_NEWCHAIN RTM_DELCHAIN,#define RTM_DELCHAIN RTM_DELCHAIN RTM_GETCHAIN,#define RTM_GETCHAIN RTM_GETCHAIN RTM_NEWNEXTHOP = 104,#define RTM_NEWNEXTHOP RTM_NEWNEXTHOP RTM_DELNEXTHOP,#define RTM_DELNEXTHOP RTM_DELNEXTHOP RTM_GETNEXTHOP,#define RTM_GETNEXTHOP RTM_GETNEXTHOP RTM_NEWLINKPROP = 108,#define RTM_NEWLINKPROP RTM_NEWLINKPROP RTM_DELLINKPROP,#define RTM_DELLINKPROP RTM_DELLINKPROP RTM_GETLINKPROP,#define RTM_GETLINKPROP RTM_GETLINKPROP RTM_NEWVLAN = 112,#define RTM_NEWVLAN RTM_NEWVLAN RTM_DELVLAN,#define RTM_DELVLAN RTM_DELVLAN RTM_GETVLAN,#define RTM_GETVLAN RTM_GETVLAN RTM_NEWNEXTHOPBUCKET = 116,#define RTM_NEWNEXTHOPBUCKET RTM_NEWNEXTHOPBUCKET RTM_DELNEXTHOPBUCKET,#define RTM_DELNEXTHOPBUCKET RTM_DELNEXTHOPBUCKET RTM_GETNEXTHOPBUCKET,#define RTM_GETNEXTHOPBUCKET RTM_GETNEXTHOPBUCKET RTM_NEWTUNNEL = 120,#define RTM_NEWTUNNEL RTM_NEWTUNNEL RTM_DELTUNNEL,#define RTM_DELTUNNEL RTM_DELTUNNEL RTM_GETTUNNEL,#define RTM_GETTUNNEL RTM_GETTUNNEL __RTM_MAX,#define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1)}; #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE)#define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2)#define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2) /* Generic structure for encapsulation of optional route information. It is reminiscent of sockaddr, but with sa_family replaced with attribute type. */ struct rtattr { unsigned short rta_len; unsigned short rta_type;}; /* Macros to handle rtattributes */ #define RTA_ALIGNTO 4U#define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )#define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \ (rta)->rta_len >= sizeof(struct rtattr) && \ (rta)->rta_len <= (len))#define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \ (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))#define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len))#define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len))#define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0)))#define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0)) /****************************************************************************** * Definitions used in routing table administration. ****/ struct rtmsg { unsigned char rtm_family; unsigned char rtm_dst_len; unsigned char rtm_src_len; unsigned char rtm_tos; unsigned char rtm_table; /* Routing table id */ unsigned char rtm_protocol; /* Routing protocol; see below */ unsigned char rtm_scope; /* See below */ unsigned char rtm_type; /* See below */ unsigned rtm_flags;}; /* rtm_type */ enum { RTN_UNSPEC, RTN_UNICAST, /* Gateway or direct route */ RTN_LOCAL, /* Accept locally */ RTN_BROADCAST, /* Accept locally as broadcast, send as broadcast */ RTN_ANYCAST, /* Accept locally as broadcast, but send as unicast */ RTN_MULTICAST, /* Multicast route */ RTN_BLACKHOLE, /* Drop */ RTN_UNREACHABLE, /* Destination is unreachable */ RTN_PROHIBIT, /* Administratively prohibited */ RTN_THROW, /* Not in this table */ RTN_NAT, /* Translate this address */ RTN_XRESOLVE, /* Use external resolver */ __RTN_MAX}; #define RTN_MAX (__RTN_MAX - 1) /* rtm_protocol */ #define RTPROT_UNSPEC 0#define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects; not used by current IPv4 */#define RTPROT_KERNEL 2 /* Route installed by kernel */#define RTPROT_BOOT 3 /* Route installed during boot */#define RTPROT_STATIC 4 /* Route installed by administrator */ /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel; they are just passed from user and back as is. It will be used by hypothetical multiple routing daemons. Note that protocol values should be standardized in order to avoid conflicts. */ #define RTPROT_GATED 8 /* Apparently, GateD */#define RTPROT_RA 9 /* RDISC/ND router advertisements */#define RTPROT_MRT 10 /* Merit MRT */#define RTPROT_ZEBRA 11 /* Zebra */#define RTPROT_BIRD 12 /* BIRD */#define RTPROT_DNROUTED 13 /* DECnet routing daemon */#define RTPROT_XORP 14 /* XORP */#define RTPROT_NTK 15 /* Netsukuku */#define RTPROT_DHCP 16 /* DHCP client */#define RTPROT_MROUTED 17 /* Multicast daemon */#define RTPROT_KEEPALIVED 18 /* Keepalived daemon */#define RTPROT_BABEL 42 /* Babel daemon */#define RTPROT_OVN 84 /* OVN daemon */#define RTPROT_OPENR 99 /* Open Routing (Open/R) Routes */#define RTPROT_BGP 186 /* BGP Routes */#define RTPROT_ISIS 187 /* ISIS Routes */#define RTPROT_OSPF 188 /* OSPF Routes */#define RTPROT_RIP 189 /* RIP Routes */#define RTPROT_EIGRP 192 /* EIGRP Routes */ /* rtm_scope Really it is not scope, but sort of distance to the destination. NOWHERE are reserved for not existing destinations, HOST is our local addresses, LINK are destinations, located on directly attached link and UNIVERSE is everywhere in the Universe. Intermediate values are also possible f.e. interior routes could be assigned a value between UNIVERSE and LINK.*/ enum rt_scope_t { RT_SCOPE_UNIVERSE=0,/* User defined values */ RT_SCOPE_SITE=200, RT_SCOPE_LINK=253, RT_SCOPE_HOST=254, RT_SCOPE_NOWHERE=255}; /* rtm_flags */ #define RTM_F_NOTIFY 0x100 /* Notify user of route change */#define RTM_F_CLONED 0x200 /* This route is cloned */#define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */#define RTM_F_PREFIX 0x800 /* Prefix addresses */#define RTM_F_LOOKUP_TABLE 0x1000 /* set rtm_table to FIB lookup result */#define RTM_F_FIB_MATCH 0x2000 /* return full fib lookup match */#define RTM_F_OFFLOAD 0x4000 /* route is offloaded */#define RTM_F_TRAP 0x8000 /* route is trapping packets */#define RTM_F_OFFLOAD_FAILED 0x20000000 /* route offload failed, this value * is chosen to avoid conflicts with * other flags defined in * include/uapi/linux/ipv6_route.h */ /* Reserved table identifiers */ enum rt_class_t { RT_TABLE_UNSPEC=0,/* User defined values */ RT_TABLE_COMPAT=252, RT_TABLE_DEFAULT=253, RT_TABLE_MAIN=254, RT_TABLE_LOCAL=255, RT_TABLE_MAX=0xFFFFFFFF}; /* Routing message attributes */ enum rtattr_type_t { RTA_UNSPEC, RTA_DST, RTA_SRC, RTA_IIF, RTA_OIF, RTA_GATEWAY, RTA_PRIORITY, RTA_PREFSRC, RTA_METRICS, RTA_MULTIPATH, RTA_PROTOINFO, /* no longer used */ RTA_FLOW, RTA_CACHEINFO, RTA_SESSION, /* no longer used */ RTA_MP_ALGO, /* no longer used */ RTA_TABLE, RTA_MARK, RTA_MFC_STATS, RTA_VIA, RTA_NEWDST, RTA_PREF, RTA_ENCAP_TYPE, RTA_ENCAP, RTA_EXPIRES, RTA_PAD, RTA_UID, RTA_TTL_PROPAGATE, RTA_IP_PROTO, RTA_SPORT, RTA_DPORT, RTA_NH_ID, RTA_FLOWLABEL, __RTA_MAX}; #define RTA_MAX (__RTA_MAX - 1) #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))#define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg)) /* RTM_MULTIPATH --- array of struct rtnexthop. * * "struct rtnexthop" describes all necessary nexthop information, * i.e. parameters of path to a destination via this nexthop. * * At the moment it is impossible to set different prefsrc, mtu, window * and rtt for different paths from multipath. */ struct rtnexthop { unsigned short rtnh_len; unsigned char rtnh_flags; unsigned char rtnh_hops; int rtnh_ifindex;}; /* rtnh_flags */ #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */#define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */#define RTNH_F_ONLINK 4 /* Gateway is forced on link */#define RTNH_F_OFFLOAD 8 /* Nexthop is offloaded */#define RTNH_F_LINKDOWN 16 /* carrier-down on nexthop */#define RTNH_F_UNRESOLVED 32 /* The entry is unresolved (ipmr) */#define RTNH_F_TRAP 64 /* Nexthop is trapping packets */ #define RTNH_COMPARE_MASK (RTNH_F_DEAD | RTNH_F_LINKDOWN | \ RTNH_F_OFFLOAD | RTNH_F_TRAP) /* Macros to handle hexthops */ #define RTNH_ALIGNTO 4#define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )#define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \ ((int)(rtnh)->rtnh_len) <= (len))#define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))#define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))#define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len))#define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0))) /* RTA_VIA */struct rtvia { __kernel_sa_family_t rtvia_family; __u8 rtvia_addr[];}; /* RTM_CACHEINFO */ struct rta_cacheinfo { __u32 rta_clntref; __u32 rta_lastuse; __s32 rta_expires; __u32 rta_error; __u32 rta_used; #define RTNETLINK_HAVE_PEERINFO 1 __u32 rta_id; __u32 rta_ts; __u32 rta_tsage;}; /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */ enum { RTAX_UNSPEC,#define RTAX_UNSPEC RTAX_UNSPEC RTAX_LOCK,#define RTAX_LOCK RTAX_LOCK RTAX_MTU,#define RTAX_MTU RTAX_MTU RTAX_WINDOW,#define RTAX_WINDOW RTAX_WINDOW RTAX_RTT,#define RTAX_RTT RTAX_RTT RTAX_RTTVAR,#define RTAX_RTTVAR RTAX_RTTVAR RTAX_SSTHRESH,#define RTAX_SSTHRESH RTAX_SSTHRESH RTAX_CWND,#define RTAX_CWND RTAX_CWND RTAX_ADVMSS,#define RTAX_ADVMSS RTAX_ADVMSS RTAX_REORDERING,#define RTAX_REORDERING RTAX_REORDERING RTAX_HOPLIMIT,#define RTAX_HOPLIMIT RTAX_HOPLIMIT RTAX_INITCWND,#define RTAX_INITCWND RTAX_INITCWND RTAX_FEATURES,#define RTAX_FEATURES RTAX_FEATURES RTAX_RTO_MIN,Lines 1–500 of 848. 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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI__LINUX_RTNETLINK_H #define _UAPI__LINUX_RTNETLINK_H #include <linux/types.h> #include <linux/netlink.h> #include <linux/if_link.h> #include <linux/if_addr.h> #include <linux/neighbour.h> /* rtnetlink families. Values up to 127 are reserved for real address * families, values above 128 may be used arbitrarily. */ #define RTNL_FAMILY_IPMR 128 #define RTNL_FAMILY_IP6MR 129 #define RTNL_FAMILY_MAX 129 /**** * Routing/neighbour discovery messages. ****/ /* Types of messages */ enum { RTM_BASE = 16, #define RTM_BASE RTM_BASE RTM_NEWLINK = 16, #define RTM_NEWLINK RTM_NEWLINK RTM_DELLINK, #define RTM_DELLINK RTM_DELLINK RTM_GETLINK, #define RTM_GETLINK RTM_GETLINK RTM_SETLINK, #define RTM_SETLINK RTM_SETLINK RTM_NEWADDR = 20, #define RTM_NEWADDR RTM_NEWADDR RTM_DELADDR, #define RTM_DELADDR RTM_DELADDR RTM_GETADDR, #define RTM_GETADDR RTM_GETADDR RTM_NEWROUTE = 24, #define RTM_NEWROUTE RTM_NEWROUTE RTM_DELROUTE, #define RTM_DELROUTE RTM_DELROUTE RTM_GETROUTE, #define RTM_GETROUTE RTM_GETROUTE RTM_NEWNEIGH = 28, #define RTM_NEWNEIGH RTM_NEWNEIGH RTM_DELNEIGH, #define RTM_DELNEIGH RTM_DELNEIGH RTM_GETNEIGH, #define RTM_GETNEIGH RTM_GETNEIGH RTM_NEWRULE = 32, #define RTM_NEWRULE RTM_NEWRULE RTM_DELRULE, #define RTM_DELRULE RTM_DELRULE RTM_GETRULE, #define RTM_GETRULE RTM_GETRULE RTM_NEWQDISC = 36, #define RTM_NEWQDISC RTM_NEWQDISC RTM_DELQDISC, #define RTM_DELQDISC RTM_DELQDISC RTM_GETQDISC, #define RTM_GETQDISC RTM_GETQDISC RTM_NEWTCLASS = 40, #define RTM_NEWTCLASS RTM_NEWTCLASS RTM_DELTCLASS, #define RTM_DELTCLASS RTM_DELTCLASS RTM_GETTCLASS, #define RTM_GETTCLASS RTM_GETTCLASS RTM_NEWTFILTER = 44, #define RTM_NEWTFILTER RTM_NEWTFILTER RTM_DELTFILTER, #define RTM_DELTFILTER RTM_DELTFILTER RTM_GETTFILTER, #define RTM_GETTFILTER RTM_GETTFILTER RTM_NEWACTION = 48, #define RTM_NEWACTION RTM_NEWACTION RTM_DELACTION, #define RTM_DELACTION RTM_DELACTION RTM_GETACTION, #define RTM_GETACTION RTM_GETACTION RTM_NEWPREFIX = 52, #define RTM_NEWPREFIX RTM_NEWPREFIX RTM_NEWMULTICAST = 56, #define RTM_NEWMULTICAST RTM_NEWMULTICAST RTM_DELMULTICAST, #define RTM_DELMULTICAST RTM_DELMULTICAST RTM_GETMULTICAST, #define RTM_GETMULTICAST RTM_GETMULTICAST RTM_NEWANYCAST = 60, #define RTM_NEWANYCAST RTM_NEWANYCAST RTM_DELANYCAST, #define RTM_DELANYCAST RTM_DELANYCAST RTM_GETANYCAST, #define RTM_GETANYCAST RTM_GETANYCAST RTM_NEWNEIGHTBL = 64, #define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL RTM_GETNEIGHTBL = 66, #define RTM_GETNEIGHTBL RTM_GETNEIGHTBL RTM_SETNEIGHTBL, #define RTM_SETNEIGHTBL RTM_SETNEIGHTBL RTM_NEWNDUSEROPT = 68, #define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT RTM_NEWADDRLABEL = 72, #define RTM_NEWADDRLABEL RTM_NEWADDRLABEL RTM_DELADDRLABEL, #define RTM_DELADDRLABEL RTM_DELADDRLABEL RTM_GETADDRLABEL, #define RTM_GETADDRLABEL RTM_GETADDRLABEL RTM_GETDCB = 78, #define RTM_GETDCB RTM_GETDCB RTM_SETDCB, #define RTM_SETDCB RTM_SETDCB RTM_NEWNETCONF = 80, #define RTM_NEWNETCONF RTM_NEWNETCONF RTM_DELNETCONF, #define RTM_DELNETCONF RTM_DELNETCONF RTM_GETNETCONF = 82, #define RTM_GETNETCONF RTM_GETNETCONF RTM_NEWMDB = 84, #define RTM_NEWMDB RTM_NEWMDB RTM_DELMDB = 85, #define RTM_DELMDB RTM_DELMDB RTM_GETMDB = 86, #define RTM_GETMDB RTM_GETMDB RTM_NEWNSID = 88, #define RTM_NEWNSID RTM_NEWNSID RTM_DELNSID = 89, #define RTM_DELNSID RTM_DELNSID RTM_GETNSID = 90, #define RTM_GETNSID RTM_GETNSID RTM_NEWSTATS = 92, #define RTM_NEWSTATS RTM_NEWSTATS RTM_GETSTATS = 94, #define RTM_GETSTATS RTM_GETSTATS RTM_SETSTATS, #define RTM_SETSTATS RTM_SETSTATS RTM_NEWCACHEREPORT = 96, #define RTM_NEWCACHEREPORT RTM_NEWCACHEREPORT RTM_NEWCHAIN = 100, #define RTM_NEWCHAIN RTM_NEWCHAIN RTM_DELCHAIN, #define RTM_DELCHAIN RTM_DELCHAIN RTM_GETCHAIN, #define RTM_GETCHAIN RTM_GETCHAIN RTM_NEWNEXTHOP = 104, #define RTM_NEWNEXTHOP RTM_NEWNEXTHOP RTM_DELNEXTHOP, #define RTM_DELNEXTHOP RTM_DELNEXTHOP RTM_GETNEXTHOP, #define RTM_GETNEXTHOP RTM_GETNEXTHOP RTM_NEWLINKPROP = 108, #define RTM_NEWLINKPROP RTM_NEWLINKPROP RTM_DELLINKPROP, #define RTM_DELLINKPROP RTM_DELLINKPROP RTM_GETLINKPROP, #define RTM_GETLINKPROP RTM_GETLINKPROP RTM_NEWVLAN = 112, #define RTM_NEWVLAN RTM_NEWVLAN RTM_DELVLAN, #define RTM_DELVLAN RTM_DELVLAN RTM_GETVLAN, #define RTM_GETVLAN RTM_GETVLAN RTM_NEWNEXTHOPBUCKET = 116, #define RTM_NEWNEXTHOPBUCKET RTM_NEWNEXTHOPBUCKET RTM_DELNEXTHOPBUCKET, #define RTM_DELNEXTHOPBUCKET RTM_DELNEXTHOPBUCKET RTM_GETNEXTHOPBUCKET, #define RTM_GETNEXTHOPBUCKET RTM_GETNEXTHOPBUCKET RTM_NEWTUNNEL = 120, #define RTM_NEWTUNNEL RTM_NEWTUNNEL RTM_DELTUNNEL, #define RTM_DELTUNNEL RTM_DELTUNNEL RTM_GETTUNNEL, #define RTM_GETTUNNEL RTM_GETTUNNEL __RTM_MAX, #define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1) }; #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE) #define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2) #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2) /* Generic structure for encapsulation of optional route information. It is reminiscent of sockaddr, but with sa_family replaced with attribute type. */ struct rtattr { unsigned short rta_len; unsigned short rta_type; }; /* Macros to handle rtattributes */ #define RTA_ALIGNTO 4U #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) ) #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \ (rta)->rta_len >= sizeof(struct rtattr) && \ (rta)->rta_len <= (len)) #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \ (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len))) #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len)) #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len)) #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0))) #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0)) /****************************************************************************** * Definitions used in routing table administration. ****/ struct rtmsg { unsigned char rtm_family; unsigned char rtm_dst_len; unsigned char rtm_src_len; unsigned char rtm_tos; unsigned char rtm_table; /* Routing table id */ unsigned char rtm_protocol; /* Routing protocol; see below */ unsigned char rtm_scope; /* See below */ unsigned char rtm_type; /* See below */ unsigned rtm_flags; }; /* rtm_type */ enum { RTN_UNSPEC, RTN_UNICAST, /* Gateway or direct route */ RTN_LOCAL, /* Accept locally */ RTN_BROADCAST, /* Accept locally as broadcast, send as broadcast */ RTN_ANYCAST, /* Accept locally as broadcast, but send as unicast */ RTN_MULTICAST, /* Multicast route */ RTN_BLACKHOLE, /* Drop */ RTN_UNREACHABLE, /* Destination is unreachable */ RTN_PROHIBIT, /* Administratively prohibited */ RTN_THROW, /* Not in this table */ RTN_NAT, /* Translate this address */ RTN_XRESOLVE, /* Use external resolver */ __RTN_MAX }; #define RTN_MAX (__RTN_MAX - 1) /* rtm_protocol */ #define RTPROT_UNSPEC 0 #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects; not used by current IPv4 */ #define RTPROT_KERNEL 2 /* Route installed by kernel */ #define RTPROT_BOOT 3 /* Route installed during boot */ #define RTPROT_STATIC 4 /* Route installed by administrator */ /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel; they are just passed from user and back as is. It will be used by hypothetical multiple routing daemons. Note that protocol values should be standardized in order to avoid conflicts. */ #define RTPROT_GATED 8 /* Apparently, GateD */ #define RTPROT_RA 9 /* RDISC/ND router advertisements */ #define RTPROT_MRT 10 /* Merit MRT */ #define RTPROT_ZEBRA 11 /* Zebra */ #define RTPROT_BIRD 12 /* BIRD */ #define RTPROT_DNROUTED 13 /* DECnet routing daemon */ #define RTPROT_XORP 14 /* XORP */ #define RTPROT_NTK 15 /* Netsukuku */ #define RTPROT_DHCP 16 /* DHCP client */ #define RTPROT_MROUTED 17 /* Multicast daemon */ #define RTPROT_KEEPALIVED 18 /* Keepalived daemon */ #define RTPROT_BABEL 42 /* Babel daemon */ #define RTPROT_OVN 84 /* OVN daemon */ #define RTPROT_OPENR 99 /* Open Routing (Open/R) Routes */ #define RTPROT_BGP 186 /* BGP Routes */ #define RTPROT_ISIS 187 /* ISIS Routes */ #define RTPROT_OSPF 188 /* OSPF Routes */ #define RTPROT_RIP 189 /* RIP Routes */ #define RTPROT_EIGRP 192 /* EIGRP Routes */ /* rtm_scope Really it is not scope, but sort of distance to the destination. NOWHERE are reserved for not existing destinations, HOST is our local addresses, LINK are destinations, located on directly attached link and UNIVERSE is everywhere in the Universe. Intermediate values are also possible f.e. interior routes could be assigned a value between UNIVERSE and LINK. */ enum rt_scope_t { RT_SCOPE_UNIVERSE=0, /* User defined values */ RT_SCOPE_SITE=200, RT_SCOPE_LINK=253, RT_SCOPE_HOST=254, RT_SCOPE_NOWHERE=255 }; /* rtm_flags */ #define RTM_F_NOTIFY 0x100 /* Notify user of route change */ #define RTM_F_CLONED 0x200 /* This route is cloned */ #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */ #define RTM_F_PREFIX 0x800 /* Prefix addresses */ #define RTM_F_LOOKUP_TABLE 0x1000 /* set rtm_table to FIB lookup result */ #define RTM_F_FIB_MATCH 0x2000 /* return full fib lookup match */ #define RTM_F_OFFLOAD 0x4000 /* route is offloaded */ #define RTM_F_TRAP 0x8000 /* route is trapping packets */ #define RTM_F_OFFLOAD_FAILED 0x20000000 /* route offload failed, this value * is chosen to avoid conflicts with * other flags defined in * include/uapi/linux/ipv6_route.h */ /* Reserved table identifiers */ enum rt_class_t { RT_TABLE_UNSPEC=0, /* User defined values */ RT_TABLE_COMPAT=252, RT_TABLE_DEFAULT=253, RT_TABLE_MAIN=254, RT_TABLE_LOCAL=255, RT_TABLE_MAX=0xFFFFFFFF }; /* Routing message attributes */ enum rtattr_type_t { RTA_UNSPEC, RTA_DST, RTA_SRC, RTA_IIF, RTA_OIF, RTA_GATEWAY, RTA_PRIORITY, RTA_PREFSRC, RTA_METRICS, RTA_MULTIPATH, RTA_PROTOINFO, /* no longer used */ RTA_FLOW, RTA_CACHEINFO, RTA_SESSION, /* no longer used */ RTA_MP_ALGO, /* no longer used */ RTA_TABLE, RTA_MARK, RTA_MFC_STATS, RTA_VIA, RTA_NEWDST, RTA_PREF, RTA_ENCAP_TYPE, RTA_ENCAP, RTA_EXPIRES, RTA_PAD, RTA_UID, RTA_TTL_PROPAGATE, RTA_IP_PROTO, RTA_SPORT, RTA_DPORT, RTA_NH_ID, RTA_FLOWLABEL, __RTA_MAX }; #define RTA_MAX (__RTA_MAX - 1) #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg)))) #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg)) /* RTM_MULTIPATH --- array of struct rtnexthop. * * "struct rtnexthop" describes all necessary nexthop information, * i.e. parameters of path to a destination via this nexthop. * * At the moment it is impossible to set different prefsrc, mtu, window * and rtt for different paths from multipath. */ struct rtnexthop { unsigned short rtnh_len; unsigned char rtnh_flags; unsigned char rtnh_hops; int rtnh_ifindex; }; /* rtnh_flags */ #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */ #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */ #define RTNH_F_ONLINK 4 /* Gateway is forced on link */ #define RTNH_F_OFFLOAD 8 /* Nexthop is offloaded */ #define RTNH_F_LINKDOWN 16 /* carrier-down on nexthop */ #define RTNH_F_UNRESOLVED 32 /* The entry is unresolved (ipmr) */ #define RTNH_F_TRAP 64 /* Nexthop is trapping packets */ #define RTNH_COMPARE_MASK (RTNH_F_DEAD | RTNH_F_LINKDOWN | \ RTNH_F_OFFLOAD | RTNH_F_TRAP) /* Macros to handle hexthops */ #define RTNH_ALIGNTO 4 #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) ) #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \ ((int)(rtnh)->rtnh_len) <= (len)) #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len))) #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len)) #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len)) #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0))) /* RTA_VIA */ struct rtvia { __kernel_sa_family_t rtvia_family; __u8 rtvia_addr[]; }; /* RTM_CACHEINFO */ struct rta_cacheinfo { __u32 rta_clntref; __u32 rta_lastuse; __s32 rta_expires; __u32 rta_error; __u32 rta_used; #define RTNETLINK_HAVE_PEERINFO 1 __u32 rta_id; __u32 rta_ts; __u32 rta_tsage; }; /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */ enum { RTAX_UNSPEC, #define RTAX_UNSPEC RTAX_UNSPEC RTAX_LOCK, #define RTAX_LOCK RTAX_LOCK RTAX_MTU, #define RTAX_MTU RTAX_MTU RTAX_WINDOW, #define RTAX_WINDOW RTAX_WINDOW RTAX_RTT, #define RTAX_RTT RTAX_RTT RTAX_RTTVAR, #define RTAX_RTTVAR RTAX_RTTVAR RTAX_SSTHRESH, #define RTAX_SSTHRESH RTAX_SSTHRESH RTAX_CWND, #define RTAX_CWND RTAX_CWND RTAX_ADVMSS, #define RTAX_ADVMSS RTAX_ADVMSS RTAX_REORDERING, #define RTAX_REORDERING RTAX_REORDERING RTAX_HOPLIMIT, #define RTAX_HOPLIMIT RTAX_HOPLIMIT RTAX_INITCWND, #define RTAX_INITCWND RTAX_INITCWND RTAX_FEATURES, #define RTAX_FEATURES RTAX_FEATURES RTAX_RTO_MIN,