FM / net

/usr/src/linux-headers-5.15.0-181/include/net/

/usr/src/linux-headers-5.15.0-181/include/net

Name	Size	Mode	Actions
9p/	-	0755	rm
bluetooth/	-	0755	rm
caif/	-	0755	rm
iucv/	-	0755	rm
netfilter/	-	0755	rm
netns/	-	0755	rm
nfc/	-	0755	rm
phonet/	-	0755	rm
sctp/	-	0755	rm
tc_act/	-	0755	rm
6lowpan.h	10270	0644	edit dl rm
act_api.h	8647	0644	edit dl rm
addrconf.h	14594	0644	edit dl rm
af_ieee802154.h	1220	0644	edit dl rm
af_rxrpc.h	2798	0644	edit dl rm
af_unix.h	3375	0644	edit dl rm
af_vsock.h	7592	0644	edit dl rm
ah.h	382	0644	edit dl rm
arp.h	2141	0644	edit dl rm
atmclip.h	1515	0644	edit dl rm
ax25.h	15443	0644	edit dl rm
ax88796.h	1440	0644	edit dl rm
bareudp.h	572	0644	edit dl rm
bonding.h	20263	0644	edit dl rm
bond_3ad.h	9706	0644	edit dl rm
bond_alb.h	6251	0644	edit dl rm
bond_options.h	3876	0644	edit dl rm
bpf_sk_storage.h	1780	0644	edit dl rm
busy_poll.h	3959	0644	edit dl rm
calipso.h	1590	0644	edit dl rm
cfg80211-wext.h	1854	0644	edit dl rm
cfg80211.h	301317	0644	edit dl rm
cfg802154.h	10779	0644	edit dl rm
checksum.h	4869	0644	edit dl rm
cipso_ipv4.h	7548	0644	edit dl rm
cls_cgroup.h	2086	0644	edit dl rm
codel.h	5782	0644	edit dl rm
codel_impl.h	8167	0644	edit dl rm
codel_qdisc.h	2973	0644	edit dl rm
compat.h	2586	0644	edit dl rm
datalink.h	619	0644	edit dl rm
dcbevent.h	742	0644	edit dl rm
dcbnl.h	4317	0644	edit dl rm
devlink.h	63593	0644	edit dl rm
dsa.h	36231	0644	edit dl rm
dsfield.h	1147	0644	edit dl rm
dst.h	15153	0644	edit dl rm
dst_cache.h	3031	0644	edit dl rm
dst_metadata.h	5521	0644	edit dl rm
dst_ops.h	2125	0644	edit dl rm
erspan.h	9180	0644	edit dl rm
esp.h	1190	0644	edit dl rm
espintcp.h	966	0644	edit dl rm
ethoc.h	391	0644	edit dl rm
failover.h	1178	0644	edit dl rm
fib_notifier.h	1384	0644	edit dl rm
fib_rules.h	6450	0644	edit dl rm
firewire.h	636	0644	edit dl rm
flow.h	5119	0644	edit dl rm
flow_dissector.h	10517	0644	edit dl rm
flow_offload.h	15938	0644	edit dl rm
fou.h	549	0644	edit dl rm
fq.h	2528	0644	edit dl rm
fq_impl.h	8076	0644	edit dl rm
garp.h	2678	0644	edit dl rm
genetlink.h	13854	0644	edit dl rm
geneve.h	1898	0644	edit dl rm
gen_stats.h	2889	0644	edit dl rm
gre.h	3369	0644	edit dl rm
gro.h	783	0644	edit dl rm
gro_cells.h	443	0644	edit dl rm
gtp.h	633	0644	edit dl rm
gue.h	3313	0644	edit dl rm
hwbm.h	969	0644	edit dl rm
icmp.h	1918	0644	edit dl rm
ieee80211_radiotap.h	13518	0644	edit dl rm
ieee802154_netdev.h	10095	0644	edit dl rm
ife.h	1057	0644	edit dl rm
if_inet6.h	6692	0644	edit dl rm
ila.h	291	0644	edit dl rm
inet6_connection_sock.h	765	0644	edit dl rm
inet6_hashtables.h	4259	0644	edit dl rm
inetpeer.h	3372	0644	edit dl rm
inet_common.h	2614	0644	edit dl rm
inet_connection_sock.h	11519	0644	edit dl rm
inet_ecn.h	7625	0644	edit dl rm
inet_frag.h	5046	0644	edit dl rm
inet_hashtables.h	12532	0644	edit dl rm
inet_sock.h	9994	0644	edit dl rm
inet_timewait_sock.h	3735	0644	edit dl rm
ioam6.h	1199	0644	edit dl rm
ip.h	22759	0644	edit dl rm
ip6_checksum.h	2770	0644	edit dl rm
ip6_fib.h	16280	0644	edit dl rm
ip6_route.h	10230	0644	edit dl rm
ip6_tunnel.h	5096	0644	edit dl rm
ipcomp.h	659	0644	edit dl rm
ipconfig.h	811	0644	edit dl rm
ipv6.h	36182	0644	edit dl rm
ipv6_frag.h	3361	0644	edit dl rm
ipv6_stubs.h	3482	0644	edit dl rm
ip_fib.h	16346	0644	edit dl rm
ip_tunnels.h	15949	0644	edit dl rm
ip_vs.h	50588	0644	edit dl rm
iw_handler.h	21413	0644	edit dl rm
kcm.h	4961	0644	edit dl rm
l3mdev.h	7202	0644	edit dl rm
lag.h	409	0644	edit dl rm
lapb.h	4938	0644	edit dl rm
lib80211.h	4017	0644	edit dl rm
llc.h	4514	0644	edit dl rm
llc_conn.h	4155	0644	edit dl rm
llc_c_ac.h	9537	0644	edit dl rm
llc_c_ev.h	10940	0644	edit dl rm
llc_c_st.h	1762	0644	edit dl rm
llc_if.h	2210	0644	edit dl rm
llc_pdu.h	14697	0644	edit dl rm
llc_sap.h	1108	0644	edit dl rm
llc_s_ac.h	1591	0644	edit dl rm
llc_s_ev.h	2255	0644	edit dl rm
llc_s_st.h	947	0644	edit dl rm
lwtunnel.h	6806	0644	edit dl rm
mac80211.h	273972	0644	edit dl rm
mac802154.h	15235	0644	edit dl rm
macsec.h	7084	0644	edit dl rm
mctp.h	6155	0644	edit dl rm
mctpdevice.h	841	0644	edit dl rm
mip6.h	1016	0644	edit dl rm
mld.h	2918	0644	edit dl rm
mpls.h	943	0644	edit dl rm
mpls_iptunnel.h	429	0644	edit dl rm
mptcp.h	6776	0644	edit dl rm
mrp.h	3119	0644	edit dl rm
ncsi.h	1964	0644	edit dl rm
ndisc.h	15150	0644	edit dl rm
neighbour.h	16099	0644	edit dl rm
netevent.h	1044	0644	edit dl rm
netlabel.h	20676	0644	edit dl rm
netlink.h	61656	0644	edit dl rm
netprio_cgroup.h	1047	0644	edit dl rm
netrom.h	7895	0644	edit dl rm
net_failover.h	1023	0644	edit dl rm
net_namespace.h	12795	0644	edit dl rm
net_ratelimit.h	220	0644	edit dl rm
nexthop.h	12565	0644	edit dl rm
nl802154.h	12384	0644	edit dl rm
nsh.h	12602	0644	edit dl rm
p8022.h	447	0644	edit dl rm
page_pool.h	8646	0644	edit dl rm
pie.h	3684	0644	edit dl rm
ping.h	2970	0644	edit dl rm
pkt_cls.h	24431	0644	edit dl rm
pkt_sched.h	6042	0644	edit dl rm
pptp.h	557	0644	edit dl rm
protocol.h	3900	0644	edit dl rm
psample.h	1083	0644	edit dl rm
psnap.h	351	0644	edit dl rm
raw.h	2136	0644	edit dl rm
rawv6.h	854	0644	edit dl rm
red.h	11654	0644	edit dl rm
regulatory.h	10901	0644	edit dl rm
request_sock.h	6660	0644	edit dl rm
rose.h	7802	0644	edit dl rm
route.h	11582	0644	edit dl rm
rpl.h	839	0644	edit dl rm
rsi_91x.h	1710	0644	edit dl rm
rtnetlink.h	7638	0644	edit dl rm
rtnh.h	859	0644	edit dl rm
sch_generic.h	34720	0644	edit dl rm
scm.h	3877	0644	edit dl rm
secure_seq.h	855	0644	edit dl rm
seg6.h	2237	0644	edit dl rm
seg6_hmac.h	1473	0644	edit dl rm
seg6_local.h	644	0644	edit dl rm
selftests.h	582	0644	edit dl rm
slhc_vj.h	6831	0644	edit dl rm
smc.h	2513	0644	edit dl rm
snmp.h	5268	0644	edit dl rm
sock.h	86351	0644	edit dl rm
sock_reuseport.h	1873	0644	edit dl rm
Space.h	737	0644	edit dl rm
stp.h	383	0644	edit dl rm
strparser.h	4250	0644	edit dl rm
switchdev.h	14614	0644	edit dl rm
tcp.h	75246	0644	edit dl rm
tcp_states.h	1225	0644	edit dl rm
timewait_sock.h	925	0644	edit dl rm
tipc.h	2405	0644	edit dl rm
tls.h	21465	0644	edit dl rm
tls_toe.h	3006	0644	edit dl rm
transp_v6.h	1996	0644	edit dl rm
tso.h	566	0644	edit dl rm
tun_proto.h	988	0644	edit dl rm
udp.h	17035	0644	edit dl rm
udplite.h	3762	0644	edit dl rm
udp_tunnel.h	12201	0644	edit dl rm
vsock_addr.h	662	0644	edit dl rm
vxlan.h	14424	0644	edit dl rm
wext.h	1510	0644	edit dl rm
x25.h	9718	0644	edit dl rm
x25device.h	387	0644	edit dl rm
xdp.h	8829	0644	edit dl rm
xdp_priv.h	446	0644	edit dl rm
xdp_sock.h	2094	0644	edit dl rm
xdp_sock_drv.h	5607	0644	edit dl rm
xfrm.h	56304	0644	edit dl rm
xsk_buff_pool.h	5138	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/include/net/nexthop.h (12565B)

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Generic nexthop implementation
 *
 * Copyright (c) 2017-19 Cumulus Networks
 * Copyright (c) 2017-19 David Ahern <dsa@cumulusnetworks.com>
 */

#ifndef __LINUX_NEXTHOP_H
#define __LINUX_NEXTHOP_H

#include <linux/netdevice.h>
#include <linux/notifier.h>
#include <linux/route.h>
#include <linux/types.h>
#include <net/ip_fib.h>
#include <net/ip6_fib.h>
#include <net/netlink.h>

#define NEXTHOP_VALID_USER_FLAGS RTNH_F_ONLINK

struct nexthop;

struct nh_config {
	u32		nh_id;

u8		nh_family;
	u8		nh_protocol;
	u8		nh_blackhole;
	u8		nh_fdb;
	u32		nh_flags;

int		nh_ifindex;
	struct net_device *dev;

union {
		__be32		ipv4;
		struct in6_addr	ipv6;
	} gw;

struct nlattr	*nh_grp;
	u16		nh_grp_type;
	u16		nh_grp_res_num_buckets;
	unsigned long	nh_grp_res_idle_timer;
	unsigned long	nh_grp_res_unbalanced_timer;
	bool		nh_grp_res_has_num_buckets;
	bool		nh_grp_res_has_idle_timer;
	bool		nh_grp_res_has_unbalanced_timer;

struct nlattr	*nh_encap;
	u16		nh_encap_type;

u32		nlflags;
	struct nl_info	nlinfo;
};

struct nh_info {
	struct hlist_node	dev_hash;    /* entry on netns devhash */
	struct nexthop		*nh_parent;

u8			family;
	bool			reject_nh;
	bool			fdb_nh;

union {
		struct fib_nh_common	fib_nhc;
		struct fib_nh		fib_nh;
		struct fib6_nh		fib6_nh;
	};
};

struct nh_res_bucket {
	struct nh_grp_entry __rcu *nh_entry;
	atomic_long_t		used_time;
	unsigned long		migrated_time;
	bool			occupied;
	u8			nh_flags;
};

struct nh_res_table {
	struct net		*net;
	u32			nhg_id;
	struct delayed_work	upkeep_dw;

/* List of NHGEs that have too few buckets ("uw" for underweight).
	 * Reclaimed buckets will be given to entries in this list.
	 */
	struct list_head	uw_nh_entries;
	unsigned long		unbalanced_since;

u32			idle_timer;
	u32			unbalanced_timer;

u16			num_nh_buckets;
	struct nh_res_bucket	nh_buckets[];
};

struct nh_grp_entry {
	struct nexthop	*nh;
	u8		weight;

union {
		struct {
			atomic_t	upper_bound;
		} hthr;
		struct {
			/* Member on uw_nh_entries. */
			struct list_head	uw_nh_entry;

u16			count_buckets;
			u16			wants_buckets;
		} res;
	};

struct list_head nh_list;
	struct nexthop	*nh_parent;  /* nexthop of group with this entry */
};

struct nh_group {
	struct nh_group		*spare; /* spare group for removals */
	u16			num_nh;
	bool			is_multipath;
	bool			hash_threshold;
	bool			resilient;
	bool			fdb_nh;
	bool			has_v4;

struct nh_res_table __rcu *res_table;
	struct nh_grp_entry	nh_entries[];
};

struct nexthop {
	struct rb_node		rb_node;    /* entry on netns rbtree */
	struct list_head	fi_list;    /* v4 entries using nh */
	struct list_head	f6i_list;   /* v6 entries using nh */
	struct list_head        fdb_list;   /* fdb entries using this nh */
	struct list_head	grp_list;   /* nh group entries using this nh */
	struct net		*net;

u32			id;

u8			protocol;   /* app managing this nh */
	u8			nh_flags;
	bool			is_group;

refcount_t		refcnt;
	struct rcu_head		rcu;

union {
		struct nh_info	__rcu *nh_info;
		struct nh_group __rcu *nh_grp;
	};
};

enum nexthop_event_type {
	NEXTHOP_EVENT_DEL,
	NEXTHOP_EVENT_REPLACE,
	NEXTHOP_EVENT_RES_TABLE_PRE_REPLACE,
	NEXTHOP_EVENT_BUCKET_REPLACE,
};

enum nh_notifier_info_type {
	NH_NOTIFIER_INFO_TYPE_SINGLE,
	NH_NOTIFIER_INFO_TYPE_GRP,
	NH_NOTIFIER_INFO_TYPE_RES_TABLE,
	NH_NOTIFIER_INFO_TYPE_RES_BUCKET,
};

struct nh_notifier_single_info {
	struct net_device *dev;
	u8 gw_family;
	union {
		__be32 ipv4;
		struct in6_addr ipv6;
	};
	u8 is_reject:1,
	   is_fdb:1,
	   has_encap:1;
};

struct nh_notifier_grp_entry_info {
	u8 weight;
	u32 id;
	struct nh_notifier_single_info nh;
};

struct nh_notifier_grp_info {
	u16 num_nh;
	bool is_fdb;
	struct nh_notifier_grp_entry_info nh_entries[];
};

struct nh_notifier_res_bucket_info {
	u16 bucket_index;
	unsigned int idle_timer_ms;
	bool force;
	struct nh_notifier_single_info old_nh;
	struct nh_notifier_single_info new_nh;
};

struct nh_notifier_res_table_info {
	u16 num_nh_buckets;
	struct nh_notifier_single_info nhs[];
};

struct nh_notifier_info {
	struct net *net;
	struct netlink_ext_ack *extack;
	u32 id;
	enum nh_notifier_info_type type;
	union {
		struct nh_notifier_single_info *nh;
		struct nh_notifier_grp_info *nh_grp;
		struct nh_notifier_res_table_info *nh_res_table;
		struct nh_notifier_res_bucket_info *nh_res_bucket;
	};
};

int register_nexthop_notifier(struct net *net, struct notifier_block *nb,
			      struct netlink_ext_ack *extack);
int unregister_nexthop_notifier(struct net *net, struct notifier_block *nb);
void nexthop_set_hw_flags(struct net *net, u32 id, bool offload, bool trap);
void nexthop_bucket_set_hw_flags(struct net *net, u32 id, u16 bucket_index,
				 bool offload, bool trap);
void nexthop_res_grp_activity_update(struct net *net, u32 id, u16 num_buckets,
				     unsigned long *activity);

/* caller is holding rcu or rtnl; no reference taken to nexthop */
struct nexthop *nexthop_find_by_id(struct net *net, u32 id);
void nexthop_free_rcu(struct rcu_head *head);

static inline bool nexthop_get(struct nexthop *nh)
{
	return refcount_inc_not_zero(&nh->refcnt);
}

static inline void nexthop_put(struct nexthop *nh)
{
	if (refcount_dec_and_test(&nh->refcnt))
		call_rcu(&nh->rcu, nexthop_free_rcu);
}

static inline bool nexthop_cmp(const struct nexthop *nh1,
			       const struct nexthop *nh2)
{
	return nh1 == nh2;
}

static inline bool nexthop_is_fdb(const struct nexthop *nh)
{
	if (nh->is_group) {
		const struct nh_group *nh_grp;

nh_grp = rcu_dereference_rtnl(nh->nh_grp);
		return nh_grp->fdb_nh;
	} else {
		const struct nh_info *nhi;

nhi = rcu_dereference_rtnl(nh->nh_info);
		return nhi->fdb_nh;
	}
}

static inline bool nexthop_has_v4(const struct nexthop *nh)
{
	if (nh->is_group) {
		struct nh_group *nh_grp;

nh_grp = rcu_dereference_rtnl(nh->nh_grp);
		return nh_grp->has_v4;
	}
	return false;
}

static inline bool nexthop_is_multipath(const struct nexthop *nh)
{
	if (nh->is_group) {
		struct nh_group *nh_grp;

nh_grp = rcu_dereference_rtnl(nh->nh_grp);
		return nh_grp->is_multipath;
	}
	return false;
}

struct nexthop *nexthop_select_path(struct nexthop *nh, int hash);

static inline unsigned int nexthop_num_path(const struct nexthop *nh)
{
	unsigned int rc = 1;

if (nh->is_group) {
		struct nh_group *nh_grp;

nh_grp = rcu_dereference_rtnl(nh->nh_grp);
		if (nh_grp->is_multipath)
			rc = nh_grp->num_nh;
	}

return rc;
}

static inline
struct nexthop *nexthop_mpath_select(const struct nh_group *nhg, int nhsel)
{
	/* for_nexthops macros in fib_semantics.c grabs a pointer to
	 * the nexthop before checking nhsel
	 */
	if (nhsel >= nhg->num_nh)
		return NULL;

return nhg->nh_entries[nhsel].nh;
}

static inline
int nexthop_mpath_fill_node(struct sk_buff *skb, struct nexthop *nh,
			    u8 rt_family)
{
	struct nh_group *nhg = rtnl_dereference(nh->nh_grp);
	int i;

for (i = 0; i < nhg->num_nh; i++) {
		struct nexthop *nhe = nhg->nh_entries[i].nh;
		struct nh_info *nhi = rcu_dereference_rtnl(nhe->nh_info);
		struct fib_nh_common *nhc = &nhi->fib_nhc;
		int weight = nhg->nh_entries[i].weight;

if (fib_add_nexthop(skb, nhc, weight, rt_family, 0) < 0)
			return -EMSGSIZE;
	}

return 0;
}

/* called with rcu lock */
static inline bool nexthop_is_blackhole(const struct nexthop *nh)
{
	const struct nh_info *nhi;

if (nh->is_group) {
		struct nh_group *nh_grp;

nh_grp = rcu_dereference_rtnl(nh->nh_grp);
		if (nh_grp->num_nh > 1)
			return false;

nh = nh_grp->nh_entries[0].nh;
	}

nhi = rcu_dereference_rtnl(nh->nh_info);
	return nhi->reject_nh;
}

static inline void nexthop_path_fib_result(struct fib_result *res, int hash)
{
	struct nh_info *nhi;
	struct nexthop *nh;

nh = nexthop_select_path(res->fi->nh, hash);
	nhi = rcu_dereference(nh->nh_info);
	res->nhc = &nhi->fib_nhc;
}

/* called with rcu read lock or rtnl held */
static inline
struct fib_nh_common *nexthop_fib_nhc(struct nexthop *nh, int nhsel)
{
	struct nh_info *nhi;

BUILD_BUG_ON(offsetof(struct fib_nh, nh_common) != 0);
	BUILD_BUG_ON(offsetof(struct fib6_nh, nh_common) != 0);

if (nh->is_group) {
		struct nh_group *nh_grp;

nh_grp = rcu_dereference_rtnl(nh->nh_grp);
		if (nh_grp->is_multipath) {
			nh = nexthop_mpath_select(nh_grp, nhsel);
			if (!nh)
				return NULL;
		}
	}

nhi = rcu_dereference_rtnl(nh->nh_info);
	return &nhi->fib_nhc;
}

/* called from fib_table_lookup with rcu_lock */
static inline
struct fib_nh_common *nexthop_get_nhc_lookup(const struct nexthop *nh,
					     int fib_flags,
					     const struct flowi4 *flp,
					     int *nhsel)
{
	struct nh_info *nhi;

if (nh->is_group) {
		struct nh_group *nhg = rcu_dereference(nh->nh_grp);
		int i;

for (i = 0; i < nhg->num_nh; i++) {
			struct nexthop *nhe = nhg->nh_entries[i].nh;

nhi = rcu_dereference(nhe->nh_info);
			if (fib_lookup_good_nhc(&nhi->fib_nhc, fib_flags, flp)) {
				*nhsel = i;
				return &nhi->fib_nhc;
			}
		}
	} else {
		nhi = rcu_dereference(nh->nh_info);
		if (fib_lookup_good_nhc(&nhi->fib_nhc, fib_flags, flp)) {
			*nhsel = 0;
			return &nhi->fib_nhc;
		}
	}

return NULL;
}

static inline bool nexthop_uses_dev(const struct nexthop *nh,
				    const struct net_device *dev)
{
	struct nh_info *nhi;

if (nh->is_group) {
		struct nh_group *nhg = rcu_dereference(nh->nh_grp);
		int i;

for (i = 0; i < nhg->num_nh; i++) {
			struct nexthop *nhe = nhg->nh_entries[i].nh;

nhi = rcu_dereference(nhe->nh_info);
			if (nhc_l3mdev_matches_dev(&nhi->fib_nhc, dev))
				return true;
		}
	} else {
		nhi = rcu_dereference(nh->nh_info);
		if (nhc_l3mdev_matches_dev(&nhi->fib_nhc, dev))
			return true;
	}

return false;
}

static inline unsigned int fib_info_num_path(const struct fib_info *fi)
{
	if (unlikely(fi->nh))
		return nexthop_num_path(fi->nh);

return fi->fib_nhs;
}

int fib_check_nexthop(struct nexthop *nh, u8 scope,
		      struct netlink_ext_ack *extack);

static inline struct fib_nh_common *fib_info_nhc(struct fib_info *fi, int nhsel)
{
	if (unlikely(fi->nh))
		return nexthop_fib_nhc(fi->nh, nhsel);

return &fi->fib_nh[nhsel].nh_common;
}

/* only used when fib_nh is built into fib_info */
static inline struct fib_nh *fib_info_nh(struct fib_info *fi, int nhsel)
{
	WARN_ON(fi->nh);

return &fi->fib_nh[nhsel];
}

/*
 * IPv6 variants
 */
int fib6_check_nexthop(struct nexthop *nh, struct fib6_config *cfg,
		       struct netlink_ext_ack *extack);

/* Caller should either hold rcu_read_lock(), or RTNL. */
static inline struct fib6_nh *nexthop_fib6_nh(struct nexthop *nh)
{
	struct nh_info *nhi;

if (nh->is_group) {
		struct nh_group *nh_grp;

nh_grp = rcu_dereference_rtnl(nh->nh_grp);
		nh = nexthop_mpath_select(nh_grp, 0);
		if (!nh)
			return NULL;
	}

nhi = rcu_dereference_rtnl(nh->nh_info);
	if (nhi->family == AF_INET6)
		return &nhi->fib6_nh;

return NULL;
}

/* Variant of nexthop_fib6_nh().
 * Caller should either hold rcu_read_lock_bh(), or RTNL.
 */
static inline struct fib6_nh *nexthop_fib6_nh_bh(struct nexthop *nh)
{
	struct nh_info *nhi;

if (nh->is_group) {
		struct nh_group *nh_grp;

nh_grp = rcu_dereference_bh_rtnl(nh->nh_grp);
		nh = nexthop_mpath_select(nh_grp, 0);
		if (!nh)
			return NULL;
	}

nhi = rcu_dereference_bh_rtnl(nh->nh_info);
	if (nhi->family == AF_INET6)
		return &nhi->fib6_nh;

return NULL;
}

static inline struct net_device *fib6_info_nh_dev(struct fib6_info *f6i)
{
	struct fib6_nh *fib6_nh;

fib6_nh = f6i->nh ? nexthop_fib6_nh(f6i->nh) : f6i->fib6_nh;
	return fib6_nh->fib_nh_dev;
}

static inline void nexthop_path_fib6_result(struct fib6_result *res, int hash)
{
	struct nexthop *nh = res->f6i->nh;
	struct nh_info *nhi;

nh = nexthop_select_path(nh, hash);

nhi = rcu_dereference_rtnl(nh->nh_info);
	if (nhi->reject_nh) {
		res->fib6_type = RTN_BLACKHOLE;
		res->fib6_flags |= RTF_REJECT;
		res->nh = nexthop_fib6_nh(nh);
	} else {
		res->nh = &nhi->fib6_nh;
	}
}

int nexthop_for_each_fib6_nh(struct nexthop *nh,
			     int (*cb)(struct fib6_nh *nh, void *arg),
			     void *arg);

static inline int nexthop_get_family(struct nexthop *nh)
{
	struct nh_info *nhi = rcu_dereference_rtnl(nh->nh_info);

return nhi->family;
}

static inline
struct fib_nh_common *nexthop_fdb_nhc(struct nexthop *nh)
{
	struct nh_info *nhi = rcu_dereference_rtnl(nh->nh_info);

return &nhi->fib_nhc;
}

static inline struct fib_nh_common *nexthop_path_fdb_result(struct nexthop *nh,
							    int hash)
{
	struct nh_info *nhi;
	struct nexthop *nhp;

nhp = nexthop_select_path(nh, hash);
	if (unlikely(!nhp))
		return NULL;
	nhi = rcu_dereference(nhp->nh_info);
	return &nhi->fib_nhc;
}
#endif

cmd: