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Name	Size	Permission
9p	[ DIR ]	drwxr-xr-x
bluetooth	[ DIR ]	drwxr-xr-x
caif	[ DIR ]	drwxr-xr-x
iucv	[ DIR ]	drwxr-xr-x
netfilter	[ DIR ]	drwxr-xr-x
netns	[ DIR ]	drwxr-xr-x
nfc	[ DIR ]	drwxr-xr-x
phonet	[ DIR ]	drwxr-xr-x
sctp	[ DIR ]	drwxr-xr-x
tc_act	[ DIR ]	drwxr-xr-x
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Space.h	737 B	-rw-r--r--
act_api.h	8.42 KB	-rw-r--r--
addrconf.h	13.95 KB	-rw-r--r--
af_ieee802154.h	1.19 KB	-rw-r--r--
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af_unix.h	2.92 KB	-rw-r--r--
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arp.h	2.03 KB	-rw-r--r--
atmclip.h	1.48 KB	-rw-r--r--
ax25.h	14.84 KB	-rw-r--r--
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cfg80211-wext.h	1.81 KB	-rw-r--r--
cfg80211.h	291.42 KB	-rw-r--r--
cfg802154.h	10.5 KB	-rw-r--r--
checksum.h	4.74 KB	-rw-r--r--
cipso_ipv4.h	7.37 KB	-rw-r--r--
cls_cgroup.h	2.04 KB	-rw-r--r--
codel.h	5.65 KB	-rw-r--r--
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codel_qdisc.h	2.9 KB	-rw-r--r--
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ethoc.h	391 B	-rw-r--r--
failover.h	1.15 KB	-rw-r--r--
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firewire.h	636 B	-rw-r--r--
flow.h	5.53 KB	-rw-r--r--
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gue.h	3.24 KB	-rw-r--r--
hwbm.h	969 B	-rw-r--r--
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ieee80211_radiotap.h	13.2 KB	-rw-r--r--
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if_inet6.h	6.3 KB	-rw-r--r--
ife.h	1.03 KB	-rw-r--r--
ila.h	291 B	-rw-r--r--
inet6_connection_sock.h	765 B	-rw-r--r--
inet6_hashtables.h	3.44 KB	-rw-r--r--
inet_common.h	2.55 KB	-rw-r--r--
inet_connection_sock.h	11.06 KB	-rw-r--r--
inet_ecn.h	7.45 KB	-rw-r--r--
inet_frag.h	4.93 KB	-rw-r--r--
inet_hashtables.h	13.99 KB	-rw-r--r--
inet_sock.h	9.25 KB	-rw-r--r--
inet_timewait_sock.h	3.65 KB	-rw-r--r--
inetpeer.h	3.29 KB	-rw-r--r--
ioam6.h	1.17 KB	-rw-r--r--
ip.h	22.08 KB	-rw-r--r--
ip6_checksum.h	2.71 KB	-rw-r--r--
ip6_fib.h	15.82 KB	-rw-r--r--
ip6_route.h	9.99 KB	-rw-r--r--
ip6_tunnel.h	4.97 KB	-rw-r--r--
ip_fib.h	15.86 KB	-rw-r--r--
ip_tunnels.h	14.14 KB	-rw-r--r--
ip_vs.h	49.38 KB	-rw-r--r--
ipcomp.h	659 B	-rw-r--r--
ipconfig.h	811 B	-rw-r--r--
ipv6.h	35.34 KB	-rw-r--r--
ipv6_frag.h	3.28 KB	-rw-r--r--
ipv6_stubs.h	3.23 KB	-rw-r--r--
iw_handler.h	20.91 KB	-rw-r--r--
kcm.h	4.82 KB	-rw-r--r--
l3mdev.h	6.99 KB	-rw-r--r--
lag.h	409 B	-rw-r--r--
lapb.h	4.81 KB	-rw-r--r--
lib80211.h	3.92 KB	-rw-r--r--
llc.h	4.41 KB	-rw-r--r--
llc_c_ac.h	9.31 KB	-rw-r--r--
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llc_conn.h	4.06 KB	-rw-r--r--
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llc_s_ac.h	1.55 KB	-rw-r--r--
llc_s_ev.h	2.2 KB	-rw-r--r--
llc_s_st.h	947 B	-rw-r--r--
llc_sap.h	1.08 KB	-rw-r--r--
lwtunnel.h	6.49 KB	-rw-r--r--
mac80211.h	266.84 KB	-rw-r--r--
mac802154.h	14.88 KB	-rw-r--r--
macsec.h	6.9 KB	-rw-r--r--
mctp.h	6.01 KB	-rw-r--r--
mctpdevice.h	735 B	-rw-r--r--
mip6.h	1016 B	-rw-r--r--
mld.h	2.85 KB	-rw-r--r--
mpls.h	943 B	-rw-r--r--
mpls_iptunnel.h	429 B	-rw-r--r--
mptcp.h	6.34 KB	-rw-r--r--
mrp.h	3.03 KB	-rw-r--r--
ncsi.h	1.92 KB	-rw-r--r--
ndisc.h	14.79 KB	-rw-r--r--
neighbour.h	15.97 KB	-rw-r--r--
net_failover.h	1023 B	-rw-r--r--
net_namespace.h	11.87 KB	-rw-r--r--
net_ratelimit.h	220 B	-rw-r--r--
netevent.h	1.02 KB	-rw-r--r--
netlabel.h	20.19 KB	-rw-r--r--
netlink.h	60.21 KB	-rw-r--r--
netprio_cgroup.h	1.02 KB	-rw-r--r--
netrom.h	7.71 KB	-rw-r--r--
nexthop.h	12.27 KB	-rw-r--r--
nl802154.h	12.09 KB	-rw-r--r--
nsh.h	12.31 KB	-rw-r--r--
p8022.h	447 B	-rw-r--r--
page_pool.h	8.88 KB	-rw-r--r--
pie.h	3.6 KB	-rw-r--r--
ping.h	2.9 KB	-rw-r--r--
pkt_cls.h	23.86 KB	-rw-r--r--
pkt_sched.h	5.37 KB	-rw-r--r--
pptp.h	557 B	-rw-r--r--
protocol.h	4 KB	-rw-r--r--
psample.h	1.06 KB	-rw-r--r--
psnap.h	351 B	-rw-r--r--
raw.h	2.08 KB	-rw-r--r--
rawv6.h	854 B	-rw-r--r--
red.h	11.38 KB	-rw-r--r--
regulatory.h	10.65 KB	-rw-r--r--
request_sock.h	6.47 KB	-rw-r--r--
rose.h	7.62 KB	-rw-r--r--
route.h	11.24 KB	-rw-r--r--
rpl.h	972 B	-rw-r--r--
rsi_91x.h	1.67 KB	-rw-r--r--
rtnetlink.h	6.72 KB	-rw-r--r--
rtnh.h	859 B	-rw-r--r--
sch_generic.h	33.86 KB	-rw-r--r--
scm.h	3.58 KB	-rw-r--r--
secure_seq.h	855 B	-rw-r--r--
seg6.h	2.18 KB	-rw-r--r--
seg6_hmac.h	1.44 KB	-rw-r--r--
seg6_local.h	644 B	-rw-r--r--
selftests.h	582 B	-rw-r--r--
slhc_vj.h	6.67 KB	-rw-r--r--
smc.h	2.45 KB	-rw-r--r--
snmp.h	5.14 KB	-rw-r--r--
sock.h	79.96 KB	-rw-r--r--
sock_reuseport.h	1.74 KB	-rw-r--r--
stp.h	383 B	-rw-r--r--
strparser.h	4.1 KB	-rw-r--r--
switchdev.h	13.96 KB	-rw-r--r--
tcp.h	71.78 KB	-rw-r--r--
tcp_states.h	1.2 KB	-rw-r--r--
timewait_sock.h	925 B	-rw-r--r--
tipc.h	2.35 KB	-rw-r--r--
tls.h	20.91 KB	-rw-r--r--
tls_toe.h	2.94 KB	-rw-r--r--
transp_v6.h	1.95 KB	-rw-r--r--
tso.h	566 B	-rw-r--r--
tun_proto.h	988 B	-rw-r--r--
udp.h	16.42 KB	-rw-r--r--
udp_tunnel.h	11.75 KB	-rw-r--r--
udplite.h	3.83 KB	-rw-r--r--
vsock_addr.h	662 B	-rw-r--r--
vxlan.h	13.91 KB	-rw-r--r--
wext.h	1.47 KB	-rw-r--r--
x25.h	9.49 KB	-rw-r--r--
x25device.h	387 B	-rw-r--r--
xdp.h	8.48 KB	-rw-r--r--
xdp_priv.h	446 B	-rw-r--r--
xdp_sock.h	2.04 KB	-rw-r--r--
xdp_sock_drv.h	5.53 KB	-rw-r--r--
xfrm.h	55.02 KB	-rw-r--r--
xsk_buff_pool.h	4.98 KB	-rw-r--r--

Code Editor : ip6_fib.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *	Linux INET6 implementation 
 *
 *	Authors:
 *	Pedro Roque		<roque@di.fc.ul.pt>	
 */

#ifndef _IP6_FIB_H
#define _IP6_FIB_H

#include <linux/ipv6_route.h>
#include <linux/rtnetlink.h>
#include <linux/spinlock.h>
#include <linux/notifier.h>
#include <net/dst.h>
#include <net/flow.h>
#include <net/ip_fib.h>
#include <net/netlink.h>
#include <net/inetpeer.h>
#include <net/fib_notifier.h>
#include <linux/indirect_call_wrapper.h>

#ifdef CONFIG_IPV6_MULTIPLE_TABLES
#define FIB6_TABLE_HASHSZ 256
#else
#define FIB6_TABLE_HASHSZ 1
#endif

#define RT6_DEBUG 2

#if RT6_DEBUG >= 3
#define RT6_TRACE(x...) pr_debug(x)
#else
#define RT6_TRACE(x...) do { ; } while (0)
#endif

struct rt6_info;
struct fib6_info;

struct fib6_config {
	u32		fc_table;
	u32		fc_metric;
	int		fc_dst_len;
	int		fc_src_len;
	int		fc_ifindex;
	u32		fc_flags;
	u32		fc_protocol;
	u16		fc_type;        /* only 8 bits are used */
	u16		fc_delete_all_nh : 1,
			fc_ignore_dev_down:1,
			__unused : 14;
	u32		fc_nh_id;

struct in6_addr	fc_dst;
	struct in6_addr	fc_src;
	struct in6_addr	fc_prefsrc;
	struct in6_addr	fc_gateway;

unsigned long	fc_expires;
	struct nlattr	*fc_mx;
	int		fc_mx_len;
	int		fc_mp_len;
	struct nlattr	*fc_mp;

struct nl_info	fc_nlinfo;
	struct nlattr	*fc_encap;
	u16		fc_encap_type;
	bool		fc_is_fdb;
};

struct fib6_node {
	struct fib6_node __rcu	*parent;
	struct fib6_node __rcu	*left;
	struct fib6_node __rcu	*right;
#ifdef CONFIG_IPV6_SUBTREES
	struct fib6_node __rcu	*subtree;
#endif
	struct fib6_info __rcu	*leaf;

__u16			fn_bit;		/* bit key */
	__u16			fn_flags;
	int			fn_sernum;
	struct fib6_info __rcu	*rr_ptr;
	struct rcu_head		rcu;
};

struct fib6_gc_args {
	int			timeout;
	int			more;
};

#ifndef CONFIG_IPV6_SUBTREES
#define FIB6_SUBTREE(fn)	NULL

static inline bool fib6_routes_require_src(const struct net *net)
{
	return false;
}

static inline void fib6_routes_require_src_inc(struct net *net) {}
static inline void fib6_routes_require_src_dec(struct net *net) {}

#else

static inline bool fib6_routes_require_src(const struct net *net)
{
	return net->ipv6.fib6_routes_require_src > 0;
}

static inline void fib6_routes_require_src_inc(struct net *net)
{
	net->ipv6.fib6_routes_require_src++;
}

static inline void fib6_routes_require_src_dec(struct net *net)
{
	net->ipv6.fib6_routes_require_src--;
}

#define FIB6_SUBTREE(fn)	(rcu_dereference_protected((fn)->subtree, 1))
#endif

/*
 *	routing information
 *
 */

struct rt6key {
	struct in6_addr	addr;
	int		plen;
};

struct fib6_table;

struct rt6_exception_bucket {
	struct hlist_head	chain;
	int			depth;
};

struct rt6_exception {
	struct hlist_node	hlist;
	struct rt6_info		*rt6i;
	unsigned long		stamp;
	struct rcu_head		rcu;
};

#define FIB6_EXCEPTION_BUCKET_SIZE_SHIFT 10
#define FIB6_EXCEPTION_BUCKET_SIZE (1 << FIB6_EXCEPTION_BUCKET_SIZE_SHIFT)
#define FIB6_MAX_DEPTH 5

struct fib6_nh {
	struct fib_nh_common	nh_common;

#ifdef CONFIG_IPV6_ROUTER_PREF
	unsigned long		last_probe;
#endif

struct rt6_info * __percpu *rt6i_pcpu;
	struct rt6_exception_bucket __rcu *rt6i_exception_bucket;
};

struct fib6_info {
	struct fib6_table		*fib6_table;
	struct fib6_info __rcu		*fib6_next;
	struct fib6_node __rcu		*fib6_node;

/* Multipath routes:
	 * siblings is a list of fib6_info that have the same metric/weight,
	 * destination, but not the same gateway. nsiblings is just a cache
	 * to speed up lookup.
	 */
	union {
		struct list_head	fib6_siblings;
		struct list_head	nh_list;
	};
	unsigned int			fib6_nsiblings;

refcount_t			fib6_ref;
	unsigned long			expires;
	struct dst_metrics		*fib6_metrics;
#define fib6_pmtu		fib6_metrics->metrics[RTAX_MTU-1]

struct rt6key			fib6_dst;
	u32				fib6_flags;
	struct rt6key			fib6_src;
	struct rt6key			fib6_prefsrc;

u32				fib6_metric;
	u8				fib6_protocol;
	u8				fib6_type;

u8				offload;
	u8				trap;
	u8				offload_failed;

u8				should_flush:1,
					dst_nocount:1,
					dst_nopolicy:1,
					fib6_destroying:1,
					unused:4;

struct rcu_head			rcu;
	struct nexthop			*nh;
	struct fib6_nh			fib6_nh[];
};

struct rt6_info {
	struct dst_entry		dst;
	struct fib6_info __rcu		*from;
	int				sernum;

struct rt6key			rt6i_dst;
	struct rt6key			rt6i_src;
	struct in6_addr			rt6i_gateway;
	struct inet6_dev		*rt6i_idev;
	u32				rt6i_flags;

struct list_head		rt6i_uncached;
	struct uncached_list		*rt6i_uncached_list;

/* more non-fragment space at head required */
	unsigned short			rt6i_nfheader_len;
};

struct fib6_result {
	struct fib6_nh		*nh;
	struct fib6_info	*f6i;
	u32			fib6_flags;
	u8			fib6_type;
	struct rt6_info		*rt6;
};

#define for_each_fib6_node_rt_rcu(fn)					\
	for (rt = rcu_dereference((fn)->leaf); rt;			\
	     rt = rcu_dereference(rt->fib6_next))

#define for_each_fib6_walker_rt(w)					\
	for (rt = (w)->leaf; rt;					\
	     rt = rcu_dereference_protected(rt->fib6_next, 1))

static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst)
{
	return ((struct rt6_info *)dst)->rt6i_idev;
}

static inline bool fib6_requires_src(const struct fib6_info *rt)
{
	return rt->fib6_src.plen > 0;
}

static inline void fib6_clean_expires(struct fib6_info *f6i)
{
	f6i->fib6_flags &= ~RTF_EXPIRES;
	f6i->expires = 0;
}

static inline void fib6_set_expires(struct fib6_info *f6i,
				    unsigned long expires)
{
	f6i->expires = expires;
	f6i->fib6_flags |= RTF_EXPIRES;
}

static inline bool fib6_check_expired(const struct fib6_info *f6i)
{
	if (f6i->fib6_flags & RTF_EXPIRES)
		return time_after(jiffies, f6i->expires);
	return false;
}

/* Function to safely get fn->fn_sernum for passed in rt
 * and store result in passed in cookie.
 * Return true if we can get cookie safely
 * Return false if not
 */
static inline bool fib6_get_cookie_safe(const struct fib6_info *f6i,
					u32 *cookie)
{
	struct fib6_node *fn;
	bool status = false;

fn = rcu_dereference(f6i->fib6_node);

if (fn) {
		*cookie = READ_ONCE(fn->fn_sernum);
		/* pairs with smp_wmb() in __fib6_update_sernum_upto_root() */
		smp_rmb();
		status = true;
	}

return status;
}

static inline u32 rt6_get_cookie(const struct rt6_info *rt)
{
	struct fib6_info *from;
	u32 cookie = 0;

if (rt->sernum)
		return rt->sernum;

rcu_read_lock();

from = rcu_dereference(rt->from);
	if (from)
		fib6_get_cookie_safe(from, &cookie);

rcu_read_unlock();

return cookie;
}

static inline void ip6_rt_put(struct rt6_info *rt)
{
	/* dst_release() accepts a NULL parameter.
	 * We rely on dst being first structure in struct rt6_info
	 */
	BUILD_BUG_ON(offsetof(struct rt6_info, dst) != 0);
	dst_release(&rt->dst);
}

struct fib6_info *fib6_info_alloc(gfp_t gfp_flags, bool with_fib6_nh);
void fib6_info_destroy_rcu(struct rcu_head *head);

static inline void fib6_info_hold(struct fib6_info *f6i)
{
	refcount_inc(&f6i->fib6_ref);
}

static inline bool fib6_info_hold_safe(struct fib6_info *f6i)
{
	return refcount_inc_not_zero(&f6i->fib6_ref);
}

static inline void fib6_info_release(struct fib6_info *f6i)
{
	if (f6i && refcount_dec_and_test(&f6i->fib6_ref))
		call_rcu(&f6i->rcu, fib6_info_destroy_rcu);
}

enum fib6_walk_state {
#ifdef CONFIG_IPV6_SUBTREES
	FWS_S,
#endif
	FWS_L,
	FWS_R,
	FWS_C,
	FWS_U
};

struct fib6_walker {
	struct list_head lh;
	struct fib6_node *root, *node;
	struct fib6_info *leaf;
	enum fib6_walk_state state;
	unsigned int skip;
	unsigned int count;
	unsigned int skip_in_node;
	int (*func)(struct fib6_walker *);
	void *args;
};

struct rt6_statistics {
	__u32		fib_nodes;		/* all fib6 nodes */
	__u32		fib_route_nodes;	/* intermediate nodes */
	__u32		fib_rt_entries;		/* rt entries in fib table */
	__u32		fib_rt_cache;		/* cached rt entries in exception table */
	__u32		fib_discarded_routes;	/* total number of routes delete */

/* The following stats are not protected by any lock */
	atomic_t	fib_rt_alloc;		/* total number of routes alloced */
	atomic_t	fib_rt_uncache;		/* rt entries in uncached list */
};

#define RTN_TL_ROOT	0x0001
#define RTN_ROOT	0x0002		/* tree root node		*/
#define RTN_RTINFO	0x0004		/* node with valid routing info	*/

/*
 *	priority levels (or metrics)
 *
 */

struct fib6_table {
	struct hlist_node	tb6_hlist;
	u32			tb6_id;
	spinlock_t		tb6_lock;
	struct fib6_node	tb6_root;
	struct inet_peer_base	tb6_peers;
	unsigned int		flags;
	unsigned int		fib_seq;
#define RT6_TABLE_HAS_DFLT_ROUTER	BIT(0)
};

#define RT6_TABLE_UNSPEC	RT_TABLE_UNSPEC
#define RT6_TABLE_MAIN		RT_TABLE_MAIN
#define RT6_TABLE_DFLT		RT6_TABLE_MAIN
#define RT6_TABLE_INFO		RT6_TABLE_MAIN
#define RT6_TABLE_PREFIX	RT6_TABLE_MAIN

#ifdef CONFIG_IPV6_MULTIPLE_TABLES
#define FIB6_TABLE_MIN		1
#define FIB6_TABLE_MAX		RT_TABLE_MAX
#define RT6_TABLE_LOCAL		RT_TABLE_LOCAL
#else
#define FIB6_TABLE_MIN		RT_TABLE_MAIN
#define FIB6_TABLE_MAX		FIB6_TABLE_MIN
#define RT6_TABLE_LOCAL		RT6_TABLE_MAIN
#endif

typedef struct rt6_info *(*pol_lookup_t)(struct net *,
					 struct fib6_table *,
					 struct flowi6 *,
					 const struct sk_buff *, int);

struct fib6_entry_notifier_info {
	struct fib_notifier_info info; /* must be first */
	struct fib6_info *rt;
	unsigned int nsiblings;
};

/*
 *	exported functions
 */

struct fib6_table *fib6_get_table(struct net *net, u32 id);
struct fib6_table *fib6_new_table(struct net *net, u32 id);
struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
				   const struct sk_buff *skb,
				   int flags, pol_lookup_t lookup);

/* called with rcu lock held; can return error pointer
 * caller needs to select path
 */
int fib6_lookup(struct net *net, int oif, struct flowi6 *fl6,
		struct fib6_result *res, int flags);

/* called with rcu lock held; caller needs to select path */
int fib6_table_lookup(struct net *net, struct fib6_table *table,
		      int oif, struct flowi6 *fl6, struct fib6_result *res,
		      int strict);

void fib6_select_path(const struct net *net, struct fib6_result *res,
		      struct flowi6 *fl6, int oif, bool have_oif_match,
		      const struct sk_buff *skb, int strict);
struct fib6_node *fib6_node_lookup(struct fib6_node *root,
				   const struct in6_addr *daddr,
				   const struct in6_addr *saddr);

struct fib6_node *fib6_locate(struct fib6_node *root,
			      const struct in6_addr *daddr, int dst_len,
			      const struct in6_addr *saddr, int src_len,
			      bool exact_match);

void fib6_clean_all(struct net *net, int (*func)(struct fib6_info *, void *arg),
		    void *arg);
void fib6_clean_all_skip_notify(struct net *net,
				int (*func)(struct fib6_info *, void *arg),
				void *arg);

int fib6_add(struct fib6_node *root, struct fib6_info *rt,
	     struct nl_info *info, struct netlink_ext_ack *extack);
int fib6_del(struct fib6_info *rt, struct nl_info *info);

static inline
void rt6_get_prefsrc(const struct rt6_info *rt, struct in6_addr *addr)
{
	const struct fib6_info *from;

rcu_read_lock();

from = rcu_dereference(rt->from);
	if (from) {
		*addr = from->fib6_prefsrc.addr;
	} else {
		struct in6_addr in6_zero = {};

*addr = in6_zero;
	}

rcu_read_unlock();
}

int fib6_nh_init(struct net *net, struct fib6_nh *fib6_nh,
		 struct fib6_config *cfg, gfp_t gfp_flags,
		 struct netlink_ext_ack *extack);
void fib6_nh_release(struct fib6_nh *fib6_nh);
void fib6_nh_release_dsts(struct fib6_nh *fib6_nh);

int call_fib6_entry_notifiers(struct net *net,
			      enum fib_event_type event_type,
			      struct fib6_info *rt,
			      struct netlink_ext_ack *extack);
int call_fib6_multipath_entry_notifiers(struct net *net,
					enum fib_event_type event_type,
					struct fib6_info *rt,
					unsigned int nsiblings,
					struct netlink_ext_ack *extack);
int call_fib6_entry_notifiers_replace(struct net *net, struct fib6_info *rt);
void fib6_rt_update(struct net *net, struct fib6_info *rt,
		    struct nl_info *info);
void inet6_rt_notify(int event, struct fib6_info *rt, struct nl_info *info,
		     unsigned int flags);

void fib6_run_gc(unsigned long expires, struct net *net, bool force);

void fib6_gc_cleanup(void);

int fib6_init(void);

struct ipv6_route_iter {
	struct seq_net_private p;
	struct fib6_walker w;
	loff_t skip;
	struct fib6_table *tbl;
	int sernum;
};

extern const struct seq_operations ipv6_route_seq_ops;

int call_fib6_notifier(struct notifier_block *nb,
		       enum fib_event_type event_type,
		       struct fib_notifier_info *info);
int call_fib6_notifiers(struct net *net, enum fib_event_type event_type,
			struct fib_notifier_info *info);

int __net_init fib6_notifier_init(struct net *net);
void __net_exit fib6_notifier_exit(struct net *net);

unsigned int fib6_tables_seq_read(struct net *net);
int fib6_tables_dump(struct net *net, struct notifier_block *nb,
		     struct netlink_ext_ack *extack);

void fib6_update_sernum(struct net *net, struct fib6_info *rt);
void fib6_update_sernum_upto_root(struct net *net, struct fib6_info *rt);
void fib6_update_sernum_stub(struct net *net, struct fib6_info *f6i);

void fib6_metric_set(struct fib6_info *f6i, int metric, u32 val);
static inline bool fib6_metric_locked(struct fib6_info *f6i, int metric)
{
	return !!(f6i->fib6_metrics->metrics[RTAX_LOCK - 1] & (1 << metric));
}
void fib6_info_hw_flags_set(struct net *net, struct fib6_info *f6i,
			    bool offload, bool trap, bool offload_failed);

#if IS_BUILTIN(CONFIG_IPV6) && defined(CONFIG_BPF_SYSCALL)
struct bpf_iter__ipv6_route {
	__bpf_md_ptr(struct bpf_iter_meta *, meta);
	__bpf_md_ptr(struct fib6_info *, rt);
};
#endif

INDIRECT_CALLABLE_DECLARE(struct rt6_info *ip6_pol_route_output(struct net *net,
					     struct fib6_table *table,
					     struct flowi6 *fl6,
					     const struct sk_buff *skb,
					     int flags));
INDIRECT_CALLABLE_DECLARE(struct rt6_info *ip6_pol_route_input(struct net *net,
					     struct fib6_table *table,
					     struct flowi6 *fl6,
					     const struct sk_buff *skb,
					     int flags));
INDIRECT_CALLABLE_DECLARE(struct rt6_info *__ip6_route_redirect(struct net *net,
					     struct fib6_table *table,
					     struct flowi6 *fl6,
					     const struct sk_buff *skb,
					     int flags));
INDIRECT_CALLABLE_DECLARE(struct rt6_info *ip6_pol_route_lookup(struct net *net,
					     struct fib6_table *table,
					     struct flowi6 *fl6,
					     const struct sk_buff *skb,
					     int flags));
static inline struct rt6_info *pol_lookup_func(pol_lookup_t lookup,
						struct net *net,
						struct fib6_table *table,
						struct flowi6 *fl6,
						const struct sk_buff *skb,
						int flags)
{
	return INDIRECT_CALL_4(lookup,
			       ip6_pol_route_output,
			       ip6_pol_route_input,
			       ip6_pol_route_lookup,
			       __ip6_route_redirect,
			       net, table, fl6, skb, flags);
}

#ifdef CONFIG_IPV6_MULTIPLE_TABLES
static inline bool fib6_has_custom_rules(const struct net *net)
{
	return net->ipv6.fib6_has_custom_rules;
}

int fib6_rules_init(void);
void fib6_rules_cleanup(void);
bool fib6_rule_default(const struct fib_rule *rule);
int fib6_rules_dump(struct net *net, struct notifier_block *nb,
		    struct netlink_ext_ack *extack);
unsigned int fib6_rules_seq_read(struct net *net);

static inline bool fib6_rules_early_flow_dissect(struct net *net,
						 struct sk_buff *skb,
						 struct flowi6 *fl6,
						 struct flow_keys *flkeys)
{
	unsigned int flag = FLOW_DISSECTOR_F_STOP_AT_ENCAP;

if (!net->ipv6.fib6_rules_require_fldissect)
		return false;

skb_flow_dissect_flow_keys(skb, flkeys, flag);
	fl6->fl6_sport = flkeys->ports.src;
	fl6->fl6_dport = flkeys->ports.dst;
	fl6->flowi6_proto = flkeys->basic.ip_proto;

return true;
}
#else
static inline bool fib6_has_custom_rules(const struct net *net)
{
	return false;
}
static inline int               fib6_rules_init(void)
{
	return 0;
}
static inline void              fib6_rules_cleanup(void)
{
	return ;
}
static inline bool fib6_rule_default(const struct fib_rule *rule)
{
	return true;
}
static inline int fib6_rules_dump(struct net *net, struct notifier_block *nb,
				  struct netlink_ext_ack *extack)
{
	return 0;
}
static inline unsigned int fib6_rules_seq_read(struct net *net)
{
	return 0;
}
static inline bool fib6_rules_early_flow_dissect(struct net *net,
						 struct sk_buff *skb,
						 struct flowi6 *fl6,
						 struct flow_keys *flkeys)
{
	return false;
}
#endif
#endif

${this.title}

Code Editor : ip6_fib.h