1 #ifndef _UAPI__LINUX_RTNETLINK_H
2 #define _UAPI__LINUX_RTNETLINK_H
4 #include <linux/types.h>
5 #include <linux/netlink.h>
6 #include <linux/if_link.h>
7 #include <linux/if_addr.h>
8 #include <linux/neighbour.h>
10 /* rtnetlink families. Values up to 127 are reserved for real address
11 * families, values above 128 may be used arbitrarily.
13 #define RTNL_FAMILY_IPMR 128
14 #define RTNL_FAMILY_IP6MR 129
15 #define RTNL_FAMILY_MAX 129
18 * Routing/neighbour discovery messages.
21 /* Types of messages */
25 #define RTM_BASE RTM_BASE
28 #define RTM_NEWLINK RTM_NEWLINK
30 #define RTM_DELLINK RTM_DELLINK
32 #define RTM_GETLINK RTM_GETLINK
34 #define RTM_SETLINK RTM_SETLINK
37 #define RTM_NEWADDR RTM_NEWADDR
39 #define RTM_DELADDR RTM_DELADDR
41 #define RTM_GETADDR RTM_GETADDR
44 #define RTM_NEWROUTE RTM_NEWROUTE
46 #define RTM_DELROUTE RTM_DELROUTE
48 #define RTM_GETROUTE RTM_GETROUTE
51 #define RTM_NEWNEIGH RTM_NEWNEIGH
53 #define RTM_DELNEIGH RTM_DELNEIGH
55 #define RTM_GETNEIGH RTM_GETNEIGH
58 #define RTM_NEWRULE RTM_NEWRULE
60 #define RTM_DELRULE RTM_DELRULE
62 #define RTM_GETRULE RTM_GETRULE
65 #define RTM_NEWQDISC RTM_NEWQDISC
67 #define RTM_DELQDISC RTM_DELQDISC
69 #define RTM_GETQDISC RTM_GETQDISC
72 #define RTM_NEWTCLASS RTM_NEWTCLASS
74 #define RTM_DELTCLASS RTM_DELTCLASS
76 #define RTM_GETTCLASS RTM_GETTCLASS
79 #define RTM_NEWTFILTER RTM_NEWTFILTER
81 #define RTM_DELTFILTER RTM_DELTFILTER
83 #define RTM_GETTFILTER RTM_GETTFILTER
86 #define RTM_NEWACTION RTM_NEWACTION
88 #define RTM_DELACTION RTM_DELACTION
90 #define RTM_GETACTION RTM_GETACTION
93 #define RTM_NEWPREFIX RTM_NEWPREFIX
95 RTM_GETMULTICAST = 58,
96 #define RTM_GETMULTICAST RTM_GETMULTICAST
99 #define RTM_GETANYCAST RTM_GETANYCAST
101 RTM_NEWNEIGHTBL = 64,
102 #define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL
103 RTM_GETNEIGHTBL = 66,
104 #define RTM_GETNEIGHTBL RTM_GETNEIGHTBL
106 #define RTM_SETNEIGHTBL RTM_SETNEIGHTBL
108 RTM_NEWNDUSEROPT = 68,
109 #define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT
111 RTM_NEWADDRLABEL = 72,
112 #define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
114 #define RTM_DELADDRLABEL RTM_DELADDRLABEL
116 #define RTM_GETADDRLABEL RTM_GETADDRLABEL
119 #define RTM_GETDCB RTM_GETDCB
121 #define RTM_SETDCB RTM_SETDCB
124 #define RTM_NEWNETCONF RTM_NEWNETCONF
126 #define RTM_GETNETCONF RTM_GETNETCONF
129 #define RTM_NEWMDB RTM_NEWMDB
131 #define RTM_DELMDB RTM_DELMDB
133 #define RTM_GETMDB RTM_GETMDB
136 #define RTM_NEWNSID RTM_NEWNSID
138 #define RTM_DELNSID RTM_DELNSID
140 #define RTM_GETNSID RTM_GETNSID
143 #define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1)
146 #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE)
147 #define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2)
148 #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2)
151 Generic structure for encapsulation of optional route information.
152 It is reminiscent of sockaddr, but with sa_family replaced
157 unsigned short rta_len;
158 unsigned short rta_type;
161 /* Macros to handle rtattributes */
163 #define RTA_ALIGNTO 4U
164 #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
165 #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
166 (rta)->rta_len >= sizeof(struct rtattr) && \
167 (rta)->rta_len <= (len))
168 #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \
169 (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))
170 #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len))
171 #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len))
172 #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0)))
173 #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))
178 /******************************************************************************
179 * Definitions used in routing table administration.
183 unsigned char rtm_family;
184 unsigned char rtm_dst_len;
185 unsigned char rtm_src_len;
186 unsigned char rtm_tos;
188 unsigned char rtm_table; /* Routing table id */
189 unsigned char rtm_protocol; /* Routing protocol; see below */
190 unsigned char rtm_scope; /* See below */
191 unsigned char rtm_type; /* See below */
200 RTN_UNICAST, /* Gateway or direct route */
201 RTN_LOCAL, /* Accept locally */
202 RTN_BROADCAST, /* Accept locally as broadcast,
204 RTN_ANYCAST, /* Accept locally as broadcast,
205 but send as unicast */
206 RTN_MULTICAST, /* Multicast route */
207 RTN_BLACKHOLE, /* Drop */
208 RTN_UNREACHABLE, /* Destination is unreachable */
209 RTN_PROHIBIT, /* Administratively prohibited */
210 RTN_THROW, /* Not in this table */
211 RTN_NAT, /* Translate this address */
212 RTN_XRESOLVE, /* Use external resolver */
216 #define RTN_MAX (__RTN_MAX - 1)
221 #define RTPROT_UNSPEC 0
222 #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects;
223 not used by current IPv4 */
224 #define RTPROT_KERNEL 2 /* Route installed by kernel */
225 #define RTPROT_BOOT 3 /* Route installed during boot */
226 #define RTPROT_STATIC 4 /* Route installed by administrator */
228 /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel;
229 they are just passed from user and back as is.
230 It will be used by hypothetical multiple routing daemons.
231 Note that protocol values should be standardized in order to
235 #define RTPROT_GATED 8 /* Apparently, GateD */
236 #define RTPROT_RA 9 /* RDISC/ND router advertisements */
237 #define RTPROT_MRT 10 /* Merit MRT */
238 #define RTPROT_ZEBRA 11 /* Zebra */
239 #define RTPROT_BIRD 12 /* BIRD */
240 #define RTPROT_DNROUTED 13 /* DECnet routing daemon */
241 #define RTPROT_XORP 14 /* XORP */
242 #define RTPROT_NTK 15 /* Netsukuku */
243 #define RTPROT_DHCP 16 /* DHCP client */
244 #define RTPROT_MROUTED 17 /* Multicast daemon */
245 #define RTPROT_BABEL 42 /* Babel daemon */
249 Really it is not scope, but sort of distance to the destination.
250 NOWHERE are reserved for not existing destinations, HOST is our
251 local addresses, LINK are destinations, located on directly attached
252 link and UNIVERSE is everywhere in the Universe.
254 Intermediate values are also possible f.e. interior routes
255 could be assigned a value between UNIVERSE and LINK.
260 /* User defined values */
269 #define RTM_F_NOTIFY 0x100 /* Notify user of route change */
270 #define RTM_F_CLONED 0x200 /* This route is cloned */
271 #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */
272 #define RTM_F_PREFIX 0x800 /* Prefix addresses */
273 #define RTM_F_LOOKUP_TABLE 0x1000 /* set rtm_table to FIB lookup result */
275 /* Reserved table identifiers */
279 /* User defined values */
281 RT_TABLE_DEFAULT=253,
284 RT_TABLE_MAX=0xFFFFFFFF
288 /* Routing message attributes */
301 RTA_PROTOINFO, /* no longer used */
304 RTA_SESSION, /* no longer used */
305 RTA_MP_ALGO, /* no longer used */
318 #define RTA_MAX (__RTA_MAX - 1)
320 #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
321 #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
323 /* RTM_MULTIPATH --- array of struct rtnexthop.
325 * "struct rtnexthop" describes all necessary nexthop information,
326 * i.e. parameters of path to a destination via this nexthop.
328 * At the moment it is impossible to set different prefsrc, mtu, window
329 * and rtt for different paths from multipath.
333 unsigned short rtnh_len;
334 unsigned char rtnh_flags;
335 unsigned char rtnh_hops;
341 #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */
342 #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */
343 #define RTNH_F_ONLINK 4 /* Gateway is forced on link */
344 #define RTNH_F_OFFLOAD 8 /* offloaded route */
345 #define RTNH_F_LINKDOWN 16 /* carrier-down on nexthop */
347 #define RTNH_COMPARE_MASK (RTNH_F_DEAD | RTNH_F_LINKDOWN)
349 /* Macros to handle hexthops */
351 #define RTNH_ALIGNTO 4
352 #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )
353 #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \
354 ((int)(rtnh)->rtnh_len) <= (len))
355 #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))
356 #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))
357 #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len))
358 #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0)))
362 __kernel_sa_family_t rtvia_family;
368 struct rta_cacheinfo {
375 #define RTNETLINK_HAVE_PEERINFO 1
381 /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
385 #define RTAX_UNSPEC RTAX_UNSPEC
387 #define RTAX_LOCK RTAX_LOCK
389 #define RTAX_MTU RTAX_MTU
391 #define RTAX_WINDOW RTAX_WINDOW
393 #define RTAX_RTT RTAX_RTT
395 #define RTAX_RTTVAR RTAX_RTTVAR
397 #define RTAX_SSTHRESH RTAX_SSTHRESH
399 #define RTAX_CWND RTAX_CWND
401 #define RTAX_ADVMSS RTAX_ADVMSS
403 #define RTAX_REORDERING RTAX_REORDERING
405 #define RTAX_HOPLIMIT RTAX_HOPLIMIT
407 #define RTAX_INITCWND RTAX_INITCWND
409 #define RTAX_FEATURES RTAX_FEATURES
411 #define RTAX_RTO_MIN RTAX_RTO_MIN
413 #define RTAX_INITRWND RTAX_INITRWND
415 #define RTAX_QUICKACK RTAX_QUICKACK
417 #define RTAX_CC_ALGO RTAX_CC_ALGO
421 #define RTAX_MAX (__RTAX_MAX - 1)
423 #define RTAX_FEATURE_ECN (1 << 0)
424 #define RTAX_FEATURE_SACK (1 << 1)
425 #define RTAX_FEATURE_TIMESTAMP (1 << 2)
426 #define RTAX_FEATURE_ALLFRAG (1 << 3)
428 #define RTAX_FEATURE_MASK (RTAX_FEATURE_ECN | RTAX_FEATURE_SACK | \
429 RTAX_FEATURE_TIMESTAMP | RTAX_FEATURE_ALLFRAG)
452 struct rta_mfc_stats {
459 * General form of address family dependent message.
463 unsigned char rtgen_family;
466 /*****************************************************************
467 * Link layer specific messages.
471 * passes link level specific information, not dependent
472 * on network protocol.
476 unsigned char ifi_family;
477 unsigned char __ifi_pad;
478 unsigned short ifi_type; /* ARPHRD_* */
479 int ifi_index; /* Link index */
480 unsigned ifi_flags; /* IFF_* flags */
481 unsigned ifi_change; /* IFF_* change mask */
484 /********************************************************************
489 unsigned char prefix_family;
490 unsigned char prefix_pad1;
491 unsigned short prefix_pad2;
493 unsigned char prefix_type;
494 unsigned char prefix_len;
495 unsigned char prefix_flags;
496 unsigned char prefix_pad3;
507 #define PREFIX_MAX (__PREFIX_MAX - 1)
509 struct prefix_cacheinfo {
510 __u32 preferred_time;
515 /*****************************************************************
516 * Traffic control messages.
520 unsigned char tcm_family;
521 unsigned char tcm__pad1;
522 unsigned short tcm__pad2;
542 #define TCA_MAX (__TCA_MAX - 1)
544 #define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
545 #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
547 /********************************************************************
548 * Neighbor Discovery userland options
551 struct nduseroptmsg {
552 unsigned char nduseropt_family;
553 unsigned char nduseropt_pad1;
554 unsigned short nduseropt_opts_len; /* Total length of options */
555 int nduseropt_ifindex;
556 __u8 nduseropt_icmp_type;
557 __u8 nduseropt_icmp_code;
558 unsigned short nduseropt_pad2;
559 unsigned int nduseropt_pad3;
560 /* Followed by one or more ND options */
569 #define NDUSEROPT_MAX (__NDUSEROPT_MAX - 1)
572 /* RTnetlink multicast groups - backwards compatibility for userspace */
573 #define RTMGRP_LINK 1
574 #define RTMGRP_NOTIFY 2
575 #define RTMGRP_NEIGH 4
578 #define RTMGRP_IPV4_IFADDR 0x10
579 #define RTMGRP_IPV4_MROUTE 0x20
580 #define RTMGRP_IPV4_ROUTE 0x40
581 #define RTMGRP_IPV4_RULE 0x80
583 #define RTMGRP_IPV6_IFADDR 0x100
584 #define RTMGRP_IPV6_MROUTE 0x200
585 #define RTMGRP_IPV6_ROUTE 0x400
586 #define RTMGRP_IPV6_IFINFO 0x800
588 #define RTMGRP_DECnet_IFADDR 0x1000
589 #define RTMGRP_DECnet_ROUTE 0x4000
591 #define RTMGRP_IPV6_PREFIX 0x20000
594 /* RTnetlink multicast groups */
595 enum rtnetlink_groups {
597 #define RTNLGRP_NONE RTNLGRP_NONE
599 #define RTNLGRP_LINK RTNLGRP_LINK
601 #define RTNLGRP_NOTIFY RTNLGRP_NOTIFY
603 #define RTNLGRP_NEIGH RTNLGRP_NEIGH
605 #define RTNLGRP_TC RTNLGRP_TC
607 #define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR
609 #define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE
611 #define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE
613 #define RTNLGRP_IPV4_RULE RTNLGRP_IPV4_RULE
615 #define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR
617 #define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE
619 #define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE
621 #define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO
622 RTNLGRP_DECnet_IFADDR,
623 #define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR
625 RTNLGRP_DECnet_ROUTE,
626 #define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE
628 #define RTNLGRP_DECnet_RULE RTNLGRP_DECnet_RULE
631 #define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX
633 #define RTNLGRP_IPV6_RULE RTNLGRP_IPV6_RULE
635 #define RTNLGRP_ND_USEROPT RTNLGRP_ND_USEROPT
636 RTNLGRP_PHONET_IFADDR,
637 #define RTNLGRP_PHONET_IFADDR RTNLGRP_PHONET_IFADDR
638 RTNLGRP_PHONET_ROUTE,
639 #define RTNLGRP_PHONET_ROUTE RTNLGRP_PHONET_ROUTE
641 #define RTNLGRP_DCB RTNLGRP_DCB
642 RTNLGRP_IPV4_NETCONF,
643 #define RTNLGRP_IPV4_NETCONF RTNLGRP_IPV4_NETCONF
644 RTNLGRP_IPV6_NETCONF,
645 #define RTNLGRP_IPV6_NETCONF RTNLGRP_IPV6_NETCONF
647 #define RTNLGRP_MDB RTNLGRP_MDB
649 #define RTNLGRP_MPLS_ROUTE RTNLGRP_MPLS_ROUTE
651 #define RTNLGRP_NSID RTNLGRP_NSID
654 #define RTNLGRP_MAX (__RTNLGRP_MAX - 1)
656 /* TC action piece */
658 unsigned char tca_family;
659 unsigned char tca__pad1;
660 unsigned short tca__pad2;
662 #define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
663 #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
664 #define TCA_ACT_TAB 1 /* attr type must be >=1 */
667 /* New extended info filters for IFLA_EXT_MASK */
668 #define RTEXT_FILTER_VF (1 << 0)
669 #define RTEXT_FILTER_BRVLAN (1 << 1)
670 #define RTEXT_FILTER_BRVLAN_COMPRESSED (1 << 2)
671 #define RTEXT_FILTER_SKIP_STATS (1 << 3)
673 /* End of information exported to user level */
677 #endif /* _UAPI__LINUX_RTNETLINK_H */