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_MAX (((__RTM_MAX + 3) & ~3) - 1)
132 #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE)
133 #define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2)
134 #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2)
137 Generic structure for encapsulation of optional route information.
138 It is reminiscent of sockaddr, but with sa_family replaced
143 unsigned short rta_len
;
144 unsigned short rta_type
;
147 /* Macros to handle rtattributes */
149 #define RTA_ALIGNTO 4
150 #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
151 #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
152 (rta)->rta_len >= sizeof(struct rtattr) && \
153 (rta)->rta_len <= (len))
154 #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \
155 (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))
156 #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len))
157 #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len))
158 #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0)))
159 #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))
164 /******************************************************************************
165 * Definitions used in routing table administration.
169 unsigned char rtm_family
;
170 unsigned char rtm_dst_len
;
171 unsigned char rtm_src_len
;
172 unsigned char rtm_tos
;
174 unsigned char rtm_table
; /* Routing table id */
175 unsigned char rtm_protocol
; /* Routing protocol; see below */
176 unsigned char rtm_scope
; /* See below */
177 unsigned char rtm_type
; /* See below */
186 RTN_UNICAST
, /* Gateway or direct route */
187 RTN_LOCAL
, /* Accept locally */
188 RTN_BROADCAST
, /* Accept locally as broadcast,
190 RTN_ANYCAST
, /* Accept locally as broadcast,
191 but send as unicast */
192 RTN_MULTICAST
, /* Multicast route */
193 RTN_BLACKHOLE
, /* Drop */
194 RTN_UNREACHABLE
, /* Destination is unreachable */
195 RTN_PROHIBIT
, /* Administratively prohibited */
196 RTN_THROW
, /* Not in this table */
197 RTN_NAT
, /* Translate this address */
198 RTN_XRESOLVE
, /* Use external resolver */
202 #define RTN_MAX (__RTN_MAX - 1)
207 #define RTPROT_UNSPEC 0
208 #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects;
209 not used by current IPv4 */
210 #define RTPROT_KERNEL 2 /* Route installed by kernel */
211 #define RTPROT_BOOT 3 /* Route installed during boot */
212 #define RTPROT_STATIC 4 /* Route installed by administrator */
214 /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel;
215 they are just passed from user and back as is.
216 It will be used by hypothetical multiple routing daemons.
217 Note that protocol values should be standardized in order to
221 #define RTPROT_GATED 8 /* Apparently, GateD */
222 #define RTPROT_RA 9 /* RDISC/ND router advertisements */
223 #define RTPROT_MRT 10 /* Merit MRT */
224 #define RTPROT_ZEBRA 11 /* Zebra */
225 #define RTPROT_BIRD 12 /* BIRD */
226 #define RTPROT_DNROUTED 13 /* DECnet routing daemon */
227 #define RTPROT_XORP 14 /* XORP */
228 #define RTPROT_NTK 15 /* Netsukuku */
229 #define RTPROT_DHCP 16 /* DHCP client */
233 Really it is not scope, but sort of distance to the destination.
234 NOWHERE are reserved for not existing destinations, HOST is our
235 local addresses, LINK are destinations, located on directly attached
236 link and UNIVERSE is everywhere in the Universe.
238 Intermediate values are also possible f.e. interior routes
239 could be assigned a value between UNIVERSE and LINK.
244 /* User defined values */
253 #define RTM_F_NOTIFY 0x100 /* Notify user of route change */
254 #define RTM_F_CLONED 0x200 /* This route is cloned */
255 #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */
256 #define RTM_F_PREFIX 0x800 /* Prefix addresses */
258 /* Reserved table identifiers */
262 /* User defined values */
264 RT_TABLE_DEFAULT
=253,
267 RT_TABLE_MAX
=0xFFFFFFFF
271 /* Routing message attributes */
284 RTA_PROTOINFO
, /* no longer used */
287 RTA_SESSION
, /* no longer used */
288 RTA_MP_ALGO
, /* no longer used */
295 #define RTA_MAX (__RTA_MAX - 1)
297 #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
298 #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
300 /* RTM_MULTIPATH --- array of struct rtnexthop.
302 * "struct rtnexthop" describes all necessary nexthop information,
303 * i.e. parameters of path to a destination via this nexthop.
305 * At the moment it is impossible to set different prefsrc, mtu, window
306 * and rtt for different paths from multipath.
310 unsigned short rtnh_len
;
311 unsigned char rtnh_flags
;
312 unsigned char rtnh_hops
;
318 #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */
319 #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */
320 #define RTNH_F_ONLINK 4 /* Gateway is forced on link */
322 /* Macros to handle hexthops */
324 #define RTNH_ALIGNTO 4
325 #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )
326 #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \
327 ((int)(rtnh)->rtnh_len) <= (len))
328 #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))
329 #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))
330 #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len))
331 #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0)))
335 struct rta_cacheinfo
{
342 #define RTNETLINK_HAVE_PEERINFO 1
348 /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
352 #define RTAX_UNSPEC RTAX_UNSPEC
354 #define RTAX_LOCK RTAX_LOCK
356 #define RTAX_MTU RTAX_MTU
358 #define RTAX_WINDOW RTAX_WINDOW
360 #define RTAX_RTT RTAX_RTT
362 #define RTAX_RTTVAR RTAX_RTTVAR
364 #define RTAX_SSTHRESH RTAX_SSTHRESH
366 #define RTAX_CWND RTAX_CWND
368 #define RTAX_ADVMSS RTAX_ADVMSS
370 #define RTAX_REORDERING RTAX_REORDERING
372 #define RTAX_HOPLIMIT RTAX_HOPLIMIT
374 #define RTAX_INITCWND RTAX_INITCWND
376 #define RTAX_FEATURES RTAX_FEATURES
378 #define RTAX_RTO_MIN RTAX_RTO_MIN
380 #define RTAX_INITRWND RTAX_INITRWND
384 #define RTAX_MAX (__RTAX_MAX - 1)
386 #define RTAX_FEATURE_ECN 0x00000001
387 #define RTAX_FEATURE_SACK 0x00000002
388 #define RTAX_FEATURE_TIMESTAMP 0x00000004
389 #define RTAX_FEATURE_ALLFRAG 0x00000008
412 struct rta_mfc_stats
{
419 * General form of address family dependent message.
423 unsigned char rtgen_family
;
426 /*****************************************************************
427 * Link layer specific messages.
431 * passes link level specific information, not dependent
432 * on network protocol.
436 unsigned char ifi_family
;
437 unsigned char __ifi_pad
;
438 unsigned short ifi_type
; /* ARPHRD_* */
439 int ifi_index
; /* Link index */
440 unsigned ifi_flags
; /* IFF_* flags */
441 unsigned ifi_change
; /* IFF_* change mask */
444 /********************************************************************
449 unsigned char prefix_family
;
450 unsigned char prefix_pad1
;
451 unsigned short prefix_pad2
;
453 unsigned char prefix_type
;
454 unsigned char prefix_len
;
455 unsigned char prefix_flags
;
456 unsigned char prefix_pad3
;
467 #define PREFIX_MAX (__PREFIX_MAX - 1)
469 struct prefix_cacheinfo
{
470 __u32 preferred_time
;
475 /*****************************************************************
476 * Traffic control messages.
480 unsigned char tcm_family
;
481 unsigned char tcm__pad1
;
482 unsigned short tcm__pad2
;
502 #define TCA_MAX (__TCA_MAX - 1)
504 #define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
505 #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
507 /********************************************************************
508 * Neighbor Discovery userland options
511 struct nduseroptmsg
{
512 unsigned char nduseropt_family
;
513 unsigned char nduseropt_pad1
;
514 unsigned short nduseropt_opts_len
; /* Total length of options */
515 int nduseropt_ifindex
;
516 __u8 nduseropt_icmp_type
;
517 __u8 nduseropt_icmp_code
;
518 unsigned short nduseropt_pad2
;
519 unsigned int nduseropt_pad3
;
520 /* Followed by one or more ND options */
529 #define NDUSEROPT_MAX (__NDUSEROPT_MAX - 1)
532 /* RTnetlink multicast groups - backwards compatibility for userspace */
533 #define RTMGRP_LINK 1
534 #define RTMGRP_NOTIFY 2
535 #define RTMGRP_NEIGH 4
538 #define RTMGRP_IPV4_IFADDR 0x10
539 #define RTMGRP_IPV4_MROUTE 0x20
540 #define RTMGRP_IPV4_ROUTE 0x40
541 #define RTMGRP_IPV4_RULE 0x80
543 #define RTMGRP_IPV6_IFADDR 0x100
544 #define RTMGRP_IPV6_MROUTE 0x200
545 #define RTMGRP_IPV6_ROUTE 0x400
546 #define RTMGRP_IPV6_IFINFO 0x800
548 #define RTMGRP_DECnet_IFADDR 0x1000
549 #define RTMGRP_DECnet_ROUTE 0x4000
551 #define RTMGRP_IPV6_PREFIX 0x20000
554 /* RTnetlink multicast groups */
555 enum rtnetlink_groups
{
557 #define RTNLGRP_NONE RTNLGRP_NONE
559 #define RTNLGRP_LINK RTNLGRP_LINK
561 #define RTNLGRP_NOTIFY RTNLGRP_NOTIFY
563 #define RTNLGRP_NEIGH RTNLGRP_NEIGH
565 #define RTNLGRP_TC RTNLGRP_TC
567 #define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR
569 #define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE
571 #define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE
573 #define RTNLGRP_IPV4_RULE RTNLGRP_IPV4_RULE
575 #define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR
577 #define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE
579 #define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE
581 #define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO
582 RTNLGRP_DECnet_IFADDR
,
583 #define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR
585 RTNLGRP_DECnet_ROUTE
,
586 #define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE
588 #define RTNLGRP_DECnet_RULE RTNLGRP_DECnet_RULE
591 #define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX
593 #define RTNLGRP_IPV6_RULE RTNLGRP_IPV6_RULE
595 #define RTNLGRP_ND_USEROPT RTNLGRP_ND_USEROPT
596 RTNLGRP_PHONET_IFADDR
,
597 #define RTNLGRP_PHONET_IFADDR RTNLGRP_PHONET_IFADDR
598 RTNLGRP_PHONET_ROUTE
,
599 #define RTNLGRP_PHONET_ROUTE RTNLGRP_PHONET_ROUTE
601 #define RTNLGRP_DCB RTNLGRP_DCB
602 RTNLGRP_IPV4_NETCONF
,
603 #define RTNLGRP_IPV4_NETCONF RTNLGRP_IPV4_NETCONF
604 RTNLGRP_IPV6_NETCONF
,
605 #define RTNLGRP_IPV6_NETCONF RTNLGRP_IPV6_NETCONF
608 #define RTNLGRP_MAX (__RTNLGRP_MAX - 1)
610 /* TC action piece */
612 unsigned char tca_family
;
613 unsigned char tca__pad1
;
614 unsigned short tca__pad2
;
616 #define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
617 #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
618 #define TCA_ACT_TAB 1 /* attr type must be >=1 */
621 /* New extended info filters for IFLA_EXT_MASK */
622 #define RTEXT_FILTER_VF (1 << 0)
624 /* End of information exported to user level */
628 #endif /* _UAPI__LINUX_RTNETLINK_H */