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_MAX (((__RTM_MAX + 3) & ~3) - 1)
139 #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE)
140 #define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2)
141 #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2)
144 Generic structure for encapsulation of optional route information.
145 It is reminiscent of sockaddr, but with sa_family replaced
150 unsigned short rta_len;
151 unsigned short rta_type;
154 /* Macros to handle rtattributes */
156 #define RTA_ALIGNTO 4
157 #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
158 #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
159 (rta)->rta_len >= sizeof(struct rtattr) && \
160 (rta)->rta_len <= (len))
161 #define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \
162 (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))
163 #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len))
164 #define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len))
165 #define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0)))
166 #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))
171 /******************************************************************************
172 * Definitions used in routing table administration.
176 unsigned char rtm_family;
177 unsigned char rtm_dst_len;
178 unsigned char rtm_src_len;
179 unsigned char rtm_tos;
181 unsigned char rtm_table; /* Routing table id */
182 unsigned char rtm_protocol; /* Routing protocol; see below */
183 unsigned char rtm_scope; /* See below */
184 unsigned char rtm_type; /* See below */
193 RTN_UNICAST, /* Gateway or direct route */
194 RTN_LOCAL, /* Accept locally */
195 RTN_BROADCAST, /* Accept locally as broadcast,
197 RTN_ANYCAST, /* Accept locally as broadcast,
198 but send as unicast */
199 RTN_MULTICAST, /* Multicast route */
200 RTN_BLACKHOLE, /* Drop */
201 RTN_UNREACHABLE, /* Destination is unreachable */
202 RTN_PROHIBIT, /* Administratively prohibited */
203 RTN_THROW, /* Not in this table */
204 RTN_NAT, /* Translate this address */
205 RTN_XRESOLVE, /* Use external resolver */
209 #define RTN_MAX (__RTN_MAX - 1)
214 #define RTPROT_UNSPEC 0
215 #define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects;
216 not used by current IPv4 */
217 #define RTPROT_KERNEL 2 /* Route installed by kernel */
218 #define RTPROT_BOOT 3 /* Route installed during boot */
219 #define RTPROT_STATIC 4 /* Route installed by administrator */
221 /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel;
222 they are just passed from user and back as is.
223 It will be used by hypothetical multiple routing daemons.
224 Note that protocol values should be standardized in order to
228 #define RTPROT_GATED 8 /* Apparently, GateD */
229 #define RTPROT_RA 9 /* RDISC/ND router advertisements */
230 #define RTPROT_MRT 10 /* Merit MRT */
231 #define RTPROT_ZEBRA 11 /* Zebra */
232 #define RTPROT_BIRD 12 /* BIRD */
233 #define RTPROT_DNROUTED 13 /* DECnet routing daemon */
234 #define RTPROT_XORP 14 /* XORP */
235 #define RTPROT_NTK 15 /* Netsukuku */
236 #define RTPROT_DHCP 16 /* DHCP client */
237 #define RTPROT_MROUTED 17 /* Multicast daemon */
241 Really it is not scope, but sort of distance to the destination.
242 NOWHERE are reserved for not existing destinations, HOST is our
243 local addresses, LINK are destinations, located on directly attached
244 link and UNIVERSE is everywhere in the Universe.
246 Intermediate values are also possible f.e. interior routes
247 could be assigned a value between UNIVERSE and LINK.
252 /* User defined values */
261 #define RTM_F_NOTIFY 0x100 /* Notify user of route change */
262 #define RTM_F_CLONED 0x200 /* This route is cloned */
263 #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */
264 #define RTM_F_PREFIX 0x800 /* Prefix addresses */
266 /* Reserved table identifiers */
270 /* User defined values */
272 RT_TABLE_DEFAULT=253,
275 RT_TABLE_MAX=0xFFFFFFFF
279 /* Routing message attributes */
292 RTA_PROTOINFO, /* no longer used */
295 RTA_SESSION, /* no longer used */
296 RTA_MP_ALGO, /* no longer used */
303 #define RTA_MAX (__RTA_MAX - 1)
305 #define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
306 #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
308 /* RTM_MULTIPATH --- array of struct rtnexthop.
310 * "struct rtnexthop" describes all necessary nexthop information,
311 * i.e. parameters of path to a destination via this nexthop.
313 * At the moment it is impossible to set different prefsrc, mtu, window
314 * and rtt for different paths from multipath.
318 unsigned short rtnh_len;
319 unsigned char rtnh_flags;
320 unsigned char rtnh_hops;
326 #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */
327 #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */
328 #define RTNH_F_ONLINK 4 /* Gateway is forced on link */
330 /* Macros to handle hexthops */
332 #define RTNH_ALIGNTO 4
333 #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )
334 #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \
335 ((int)(rtnh)->rtnh_len) <= (len))
336 #define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))
337 #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))
338 #define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len))
339 #define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0)))
343 struct rta_cacheinfo {
350 #define RTNETLINK_HAVE_PEERINFO 1
356 /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
360 #define RTAX_UNSPEC RTAX_UNSPEC
362 #define RTAX_LOCK RTAX_LOCK
364 #define RTAX_MTU RTAX_MTU
366 #define RTAX_WINDOW RTAX_WINDOW
368 #define RTAX_RTT RTAX_RTT
370 #define RTAX_RTTVAR RTAX_RTTVAR
372 #define RTAX_SSTHRESH RTAX_SSTHRESH
374 #define RTAX_CWND RTAX_CWND
376 #define RTAX_ADVMSS RTAX_ADVMSS
378 #define RTAX_REORDERING RTAX_REORDERING
380 #define RTAX_HOPLIMIT RTAX_HOPLIMIT
382 #define RTAX_INITCWND RTAX_INITCWND
384 #define RTAX_FEATURES RTAX_FEATURES
386 #define RTAX_RTO_MIN RTAX_RTO_MIN
388 #define RTAX_INITRWND RTAX_INITRWND
392 #define RTAX_MAX (__RTAX_MAX - 1)
394 #define RTAX_FEATURE_ECN 0x00000001
395 #define RTAX_FEATURE_SACK 0x00000002
396 #define RTAX_FEATURE_TIMESTAMP 0x00000004
397 #define RTAX_FEATURE_ALLFRAG 0x00000008
420 struct rta_mfc_stats {
427 * General form of address family dependent message.
431 unsigned char rtgen_family;
434 /*****************************************************************
435 * Link layer specific messages.
439 * passes link level specific information, not dependent
440 * on network protocol.
444 unsigned char ifi_family;
445 unsigned char __ifi_pad;
446 unsigned short ifi_type; /* ARPHRD_* */
447 int ifi_index; /* Link index */
448 unsigned ifi_flags; /* IFF_* flags */
449 unsigned ifi_change; /* IFF_* change mask */
452 /********************************************************************
457 unsigned char prefix_family;
458 unsigned char prefix_pad1;
459 unsigned short prefix_pad2;
461 unsigned char prefix_type;
462 unsigned char prefix_len;
463 unsigned char prefix_flags;
464 unsigned char prefix_pad3;
475 #define PREFIX_MAX (__PREFIX_MAX - 1)
477 struct prefix_cacheinfo {
478 __u32 preferred_time;
483 /*****************************************************************
484 * Traffic control messages.
488 unsigned char tcm_family;
489 unsigned char tcm__pad1;
490 unsigned short tcm__pad2;
510 #define TCA_MAX (__TCA_MAX - 1)
512 #define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
513 #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
515 /********************************************************************
516 * Neighbor Discovery userland options
519 struct nduseroptmsg {
520 unsigned char nduseropt_family;
521 unsigned char nduseropt_pad1;
522 unsigned short nduseropt_opts_len; /* Total length of options */
523 int nduseropt_ifindex;
524 __u8 nduseropt_icmp_type;
525 __u8 nduseropt_icmp_code;
526 unsigned short nduseropt_pad2;
527 unsigned int nduseropt_pad3;
528 /* Followed by one or more ND options */
537 #define NDUSEROPT_MAX (__NDUSEROPT_MAX - 1)
540 /* RTnetlink multicast groups - backwards compatibility for userspace */
541 #define RTMGRP_LINK 1
542 #define RTMGRP_NOTIFY 2
543 #define RTMGRP_NEIGH 4
546 #define RTMGRP_IPV4_IFADDR 0x10
547 #define RTMGRP_IPV4_MROUTE 0x20
548 #define RTMGRP_IPV4_ROUTE 0x40
549 #define RTMGRP_IPV4_RULE 0x80
551 #define RTMGRP_IPV6_IFADDR 0x100
552 #define RTMGRP_IPV6_MROUTE 0x200
553 #define RTMGRP_IPV6_ROUTE 0x400
554 #define RTMGRP_IPV6_IFINFO 0x800
556 #define RTMGRP_DECnet_IFADDR 0x1000
557 #define RTMGRP_DECnet_ROUTE 0x4000
559 #define RTMGRP_IPV6_PREFIX 0x20000
562 /* RTnetlink multicast groups */
563 enum rtnetlink_groups {
565 #define RTNLGRP_NONE RTNLGRP_NONE
567 #define RTNLGRP_LINK RTNLGRP_LINK
569 #define RTNLGRP_NOTIFY RTNLGRP_NOTIFY
571 #define RTNLGRP_NEIGH RTNLGRP_NEIGH
573 #define RTNLGRP_TC RTNLGRP_TC
575 #define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR
577 #define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE
579 #define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE
581 #define RTNLGRP_IPV4_RULE RTNLGRP_IPV4_RULE
583 #define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR
585 #define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE
587 #define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE
589 #define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO
590 RTNLGRP_DECnet_IFADDR,
591 #define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR
593 RTNLGRP_DECnet_ROUTE,
594 #define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE
596 #define RTNLGRP_DECnet_RULE RTNLGRP_DECnet_RULE
599 #define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX
601 #define RTNLGRP_IPV6_RULE RTNLGRP_IPV6_RULE
603 #define RTNLGRP_ND_USEROPT RTNLGRP_ND_USEROPT
604 RTNLGRP_PHONET_IFADDR,
605 #define RTNLGRP_PHONET_IFADDR RTNLGRP_PHONET_IFADDR
606 RTNLGRP_PHONET_ROUTE,
607 #define RTNLGRP_PHONET_ROUTE RTNLGRP_PHONET_ROUTE
609 #define RTNLGRP_DCB RTNLGRP_DCB
610 RTNLGRP_IPV4_NETCONF,
611 #define RTNLGRP_IPV4_NETCONF RTNLGRP_IPV4_NETCONF
612 RTNLGRP_IPV6_NETCONF,
613 #define RTNLGRP_IPV6_NETCONF RTNLGRP_IPV6_NETCONF
615 #define RTNLGRP_MDB RTNLGRP_MDB
618 #define RTNLGRP_MAX (__RTNLGRP_MAX - 1)
620 /* TC action piece */
622 unsigned char tca_family;
623 unsigned char tca__pad1;
624 unsigned short tca__pad2;
626 #define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
627 #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
628 #define TCA_ACT_TAB 1 /* attr type must be >=1 */
631 /* New extended info filters for IFLA_EXT_MASK */
632 #define RTEXT_FILTER_VF (1 << 0)
633 #define RTEXT_FILTER_BRVLAN (1 << 1)
635 /* End of information exported to user level */
639 #endif /* _UAPI__LINUX_RTNETLINK_H */