include: import kernel headers "linux/{neighbour,nexthop,rtnetlink}.h"

Taken from kernel v6.4 (6995e2de6891c724bfeb2db33d7b87775f913ad1).

4 files changed, 272 insertions, 38 deletions

diff --git a/Makefile.am b/Makefile.am
index 0ac63d5..cdac799 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -253,6 +253,7 @@ noinst_HEADERS = \
 	include/linux-private/linux/netfilter/nfnetlink_log.h \
 	include/linux-private/linux/netfilter/nfnetlink_queue.h \
 	include/linux-private/linux/netlink.h \
+	include/linux-private/linux/nexthop.h \
 	include/linux-private/linux/pkt_cls.h \
 	include/linux-private/linux/pkt_sched.h \
 	include/linux-private/linux/rtnetlink.h \
diff --git a/include/linux-private/linux/neighbour.h b/include/linux-private/linux/neighbour.h
index 904db61..5e67a7e 100644
--- a/include/linux-private/linux/neighbour.h
+++ b/include/linux-private/linux/neighbour.h
@@ -28,6 +28,12 @@ enum {
 	NDA_MASTER,
 	NDA_LINK_NETNSID,
 	NDA_SRC_VNI,
+	NDA_PROTOCOL,  /* Originator of entry */
+	NDA_NH_ID,
+	NDA_FDB_EXT_ATTRS,
+	NDA_FLAGS_EXT,
+	NDA_NDM_STATE_MASK,
+	NDA_NDM_FLAGS_MASK,
 	__NDA_MAX
 };
 
@@ -37,13 +43,17 @@ enum {
  *	Neighbor Cache Entry Flags
  */
 
-#define NTF_USE		0x01
-#define NTF_SELF	0x02
-#define NTF_MASTER	0x04
-#define NTF_PROXY	0x08	/* == ATF_PUBL */
-#define NTF_EXT_LEARNED	0x10
-#define NTF_OFFLOADED   0x20
-#define NTF_ROUTER	0x80
+#define NTF_USE		(1 << 0)
+#define NTF_SELF	(1 << 1)
+#define NTF_MASTER	(1 << 2)
+#define NTF_PROXY	(1 << 3)	/* == ATF_PUBL */
+#define NTF_EXT_LEARNED	(1 << 4)
+#define NTF_OFFLOADED   (1 << 5)
+#define NTF_STICKY	(1 << 6)
+#define NTF_ROUTER	(1 << 7)
+/* Extended flags under NDA_FLAGS_EXT: */
+#define NTF_EXT_MANAGED		(1 << 0)
+#define NTF_EXT_LOCKED		(1 << 1)
 
 /*
  *	Neighbor Cache Entry States.
@@ -61,9 +71,27 @@ enum {
 #define NUD_PERMANENT	0x80
 #define NUD_NONE	0x00
 
-/* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
-   and make no address resolution or NUD.
-   NUD_PERMANENT also cannot be deleted by garbage collectors.
+/* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change and make no
+ * address resolution or NUD.
+ *
+ * NUD_PERMANENT also cannot be deleted by garbage collectors. This holds true
+ * for dynamic entries with NTF_EXT_LEARNED flag as well. However, upon carrier
+ * down event, NUD_PERMANENT entries are not flushed whereas NTF_EXT_LEARNED
+ * flagged entries explicitly are (which is also consistent with the routing
+ * subsystem).
+ *
+ * When NTF_EXT_LEARNED is set for a bridge fdb entry the different cache entry
+ * states don't make sense and thus are ignored. Such entries don't age and
+ * can roam.
+ *
+ * NTF_EXT_MANAGED flagged neigbor entries are managed by the kernel on behalf
+ * of a user space control plane, and automatically refreshed so that (if
+ * possible) they remain in NUD_REACHABLE state.
+ *
+ * NTF_EXT_LOCKED flagged bridge FDB entries are entries generated by the
+ * bridge in response to a host trying to communicate via a locked bridge port
+ * with MAB enabled. Their purpose is to notify user space that a host requires
+ * authentication.
  */
 
 struct nda_cacheinfo {
@@ -132,6 +160,7 @@ enum {
 	NDTPA_QUEUE_LENBYTES,		/* u32 */
 	NDTPA_MCAST_REPROBES,		/* u32 */
 	NDTPA_PAD,
+	NDTPA_INTERVAL_PROBE_TIME_MS,	/* u64, msecs */
 	__NDTPA_MAX
 };
 #define NDTPA_MAX (__NDTPA_MAX - 1)
@@ -169,4 +198,27 @@ enum {
 };
 #define NDTA_MAX (__NDTA_MAX - 1)
 
+ /* FDB activity notification bits used in NFEA_ACTIVITY_NOTIFY:
+  * - FDB_NOTIFY_BIT - notify on activity/expire for any entry
+  * - FDB_NOTIFY_INACTIVE_BIT - mark as inactive to avoid multiple notifications
+  */
+enum {
+	FDB_NOTIFY_BIT		= (1 << 0),
+	FDB_NOTIFY_INACTIVE_BIT	= (1 << 1)
+};
+
+/* embedded into NDA_FDB_EXT_ATTRS:
+ * [NDA_FDB_EXT_ATTRS] = {
+ *     [NFEA_ACTIVITY_NOTIFY]
+ *     ...
+ * }
+ */
+enum {
+	NFEA_UNSPEC,
+	NFEA_ACTIVITY_NOTIFY,
+	NFEA_DONT_REFRESH,
+	__NFEA_MAX
+};
+#define NFEA_MAX (__NFEA_MAX - 1)
+
 #endif
diff --git a/include/linux-private/linux/nexthop.h b/include/linux-private/linux/nexthop.h
new file mode 100644
index 0000000..37b14b4
--- /dev/null
+++ b/include/linux-private/linux/nexthop.h
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_NEXTHOP_H
+#define _LINUX_NEXTHOP_H
+
+#include <linux/types.h>
+
+struct nhmsg {
+	unsigned char	nh_family;
+	unsigned char	nh_scope;     /* return only */
+	unsigned char	nh_protocol;  /* Routing protocol that installed nh */
+	unsigned char	resvd;
+	unsigned int	nh_flags;     /* RTNH_F flags */
+};
+
+/* entry in a nexthop group */
+struct nexthop_grp {
+	__u32	id;	  /* nexthop id - must exist */
+	__u8	weight;   /* weight of this nexthop */
+	__u8	resvd1;
+	__u16	resvd2;
+};
+
+enum {
+	NEXTHOP_GRP_TYPE_MPATH,  /* hash-threshold nexthop group
+				  * default type if not specified
+				  */
+	NEXTHOP_GRP_TYPE_RES,    /* resilient nexthop group */
+	__NEXTHOP_GRP_TYPE_MAX,
+};
+
+#define NEXTHOP_GRP_TYPE_MAX (__NEXTHOP_GRP_TYPE_MAX - 1)
+
+enum {
+	NHA_UNSPEC,
+	NHA_ID,		/* u32; id for nexthop. id == 0 means auto-assign */
+
+	NHA_GROUP,	/* array of nexthop_grp */
+	NHA_GROUP_TYPE,	/* u16 one of NEXTHOP_GRP_TYPE */
+	/* if NHA_GROUP attribute is added, no other attributes can be set */
+
+	NHA_BLACKHOLE,	/* flag; nexthop used to blackhole packets */
+	/* if NHA_BLACKHOLE is added, OIF, GATEWAY, ENCAP can not be set */
+
+	NHA_OIF,	/* u32; nexthop device */
+	NHA_GATEWAY,	/* be32 (IPv4) or in6_addr (IPv6) gw address */
+	NHA_ENCAP_TYPE, /* u16; lwt encap type */
+	NHA_ENCAP,	/* lwt encap data */
+
+	/* NHA_OIF can be appended to dump request to return only
+	 * nexthops using given device
+	 */
+	NHA_GROUPS,	/* flag; only return nexthop groups in dump */
+	NHA_MASTER,	/* u32;  only return nexthops with given master dev */
+
+	NHA_FDB,	/* flag; nexthop belongs to a bridge fdb */
+	/* if NHA_FDB is added, OIF, BLACKHOLE, ENCAP cannot be set */
+
+	/* nested; resilient nexthop group attributes */
+	NHA_RES_GROUP,
+	/* nested; nexthop bucket attributes */
+	NHA_RES_BUCKET,
+
+	__NHA_MAX,
+};
+
+#define NHA_MAX	(__NHA_MAX - 1)
+
+enum {
+	NHA_RES_GROUP_UNSPEC,
+	/* Pad attribute for 64-bit alignment. */
+	NHA_RES_GROUP_PAD = NHA_RES_GROUP_UNSPEC,
+
+	/* u16; number of nexthop buckets in a resilient nexthop group */
+	NHA_RES_GROUP_BUCKETS,
+	/* clock_t as u32; nexthop bucket idle timer (per-group) */
+	NHA_RES_GROUP_IDLE_TIMER,
+	/* clock_t as u32; nexthop unbalanced timer */
+	NHA_RES_GROUP_UNBALANCED_TIMER,
+	/* clock_t as u64; nexthop unbalanced time */
+	NHA_RES_GROUP_UNBALANCED_TIME,
+
+	__NHA_RES_GROUP_MAX,
+};
+
+#define NHA_RES_GROUP_MAX	(__NHA_RES_GROUP_MAX - 1)
+
+enum {
+	NHA_RES_BUCKET_UNSPEC,
+	/* Pad attribute for 64-bit alignment. */
+	NHA_RES_BUCKET_PAD = NHA_RES_BUCKET_UNSPEC,
+
+	/* u16; nexthop bucket index */
+	NHA_RES_BUCKET_INDEX,
+	/* clock_t as u64; nexthop bucket idle time */
+	NHA_RES_BUCKET_IDLE_TIME,
+	/* u32; nexthop id assigned to the nexthop bucket */
+	NHA_RES_BUCKET_NH_ID,
+
+	__NHA_RES_BUCKET_MAX,
+};
+
+#define NHA_RES_BUCKET_MAX	(__NHA_RES_BUCKET_MAX - 1)
+
+#endif
diff --git a/include/linux-private/linux/rtnetlink.h b/include/linux-private/linux/rtnetlink.h
index 8c1d600..2132e94 100644
--- a/include/linux-private/linux/rtnetlink.h
+++ b/include/linux-private/linux/rtnetlink.h
@@ -146,6 +146,8 @@ enum {
 #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
@@ -157,6 +159,41 @@ enum {
 	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_NEWNVLAN	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)
 };
@@ -236,12 +273,12 @@ enum {
 
 /* 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	*/
+#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.
@@ -250,22 +287,24 @@ enum {
    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_BABEL	42      /* Babel daemon */
-#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 */
+#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_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
 
@@ -295,6 +334,13 @@ enum rt_scope_t {
 #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 */
 
@@ -342,6 +388,7 @@ enum rtattr_type_t {
 	RTA_IP_PROTO,
 	RTA_SPORT,
 	RTA_DPORT,
+	RTA_NH_ID,
 	__RTA_MAX
 };
 
@@ -371,11 +418,13 @@ struct rtnexthop {
 #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	/* offloaded route */
+#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)
+#define RTNH_COMPARE_MASK	(RTNH_F_DEAD | RTNH_F_LINKDOWN | \
+				 RTNH_F_OFFLOAD | RTNH_F_TRAP)
 
 /* Macros to handle hexthops */
 
@@ -391,7 +440,7 @@ struct rtnexthop {
 /* RTA_VIA */
 struct rtvia {
 	__kernel_sa_family_t	rtvia_family;
-	__u8			rtvia_addr[0];
+	__u8			rtvia_addr[];
 };
 
 /* RTM_CACHEINFO */
@@ -585,11 +634,18 @@ enum {
 	TCA_HW_OFFLOAD,
 	TCA_INGRESS_BLOCK,
 	TCA_EGRESS_BLOCK,
+	TCA_DUMP_FLAGS,
+	TCA_EXT_WARN_MSG,
 	__TCA_MAX
 };
 
 #define TCA_MAX (__TCA_MAX - 1)
 
+#define TCA_DUMP_FLAGS_TERSE (1 << 0) /* Means that in dump user gets only basic
+				       * data necessary to identify the objects
+				       * (handle, cookie, etc.) and stats.
+				       */
+
 #define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
 #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
 
@@ -702,6 +758,16 @@ enum rtnetlink_groups {
 #define RTNLGRP_IPV4_MROUTE_R	RTNLGRP_IPV4_MROUTE_R
 	RTNLGRP_IPV6_MROUTE_R,
 #define RTNLGRP_IPV6_MROUTE_R	RTNLGRP_IPV6_MROUTE_R
+	RTNLGRP_NEXTHOP,
+#define RTNLGRP_NEXTHOP		RTNLGRP_NEXTHOP
+	RTNLGRP_BRVLAN,
+#define RTNLGRP_BRVLAN		RTNLGRP_BRVLAN
+	RTNLGRP_MCTP_IFADDR,
+#define RTNLGRP_MCTP_IFADDR	RTNLGRP_MCTP_IFADDR
+	RTNLGRP_TUNNEL,
+#define RTNLGRP_TUNNEL		RTNLGRP_TUNNEL
+	RTNLGRP_STATS,
+#define RTNLGRP_STATS		RTNLGRP_STATS
 	__RTNLGRP_MAX
 };
 #define RTNLGRP_MAX	(__RTNLGRP_MAX - 1)
@@ -721,6 +787,7 @@ enum {
 	TCA_ROOT_FLAGS,
 	TCA_ROOT_COUNT,
 	TCA_ROOT_TIME_DELTA, /* in msecs */
+	TCA_ROOT_EXT_WARN_MSG,
 	__TCA_ROOT_MAX,
 #define	TCA_ROOT_MAX (__TCA_ROOT_MAX - 1)
 };
@@ -729,18 +796,28 @@ enum {
 #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
 /* tcamsg flags stored in attribute TCA_ROOT_FLAGS
  *
- * TCA_FLAG_LARGE_DUMP_ON user->kernel to request for larger than TCA_ACT_MAX_PRIO
- * actions in a dump. All dump responses will contain the number of actions
- * being dumped stored in for user app's consumption in TCA_ROOT_COUNT
+ * TCA_ACT_FLAG_LARGE_DUMP_ON user->kernel to request for larger than
+ * TCA_ACT_MAX_PRIO actions in a dump. All dump responses will contain the
+ * number of actions being dumped stored in for user app's consumption in
+ * TCA_ROOT_COUNT
+ *
+ * TCA_ACT_FLAG_TERSE_DUMP user->kernel to request terse (brief) dump that only
+ * includes essential action info (kind, index, etc.)
  *
  */
 #define TCA_FLAG_LARGE_DUMP_ON		(1 << 0)
+#define TCA_ACT_FLAG_LARGE_DUMP_ON	TCA_FLAG_LARGE_DUMP_ON
+#define TCA_ACT_FLAG_TERSE_DUMP		(1 << 1)
 
 /* New extended info filters for IFLA_EXT_MASK */
 #define RTEXT_FILTER_VF		(1 << 0)
 #define RTEXT_FILTER_BRVLAN	(1 << 1)
 #define RTEXT_FILTER_BRVLAN_COMPRESSED	(1 << 2)
 #define	RTEXT_FILTER_SKIP_STATS	(1 << 3)
+#define RTEXT_FILTER_MRP	(1 << 4)
+#define RTEXT_FILTER_CFM_CONFIG	(1 << 5)
+#define RTEXT_FILTER_CFM_STATUS	(1 << 6)
+#define RTEXT_FILTER_MST	(1 << 7)
 
 /* End of information exported to user level */