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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	1.15 KB	-rw-r--r--
act_api.h	6.38 KB	-rw-r--r--
addrconf.h	12.63 KB	-rw-r--r--
af_ieee802154.h	1.55 KB	-rw-r--r--
af_rxrpc.h	2.79 KB	-rw-r--r--
af_unix.h	2.22 KB	-rw-r--r--
af_vsock.h	7.21 KB	-rw-r--r--
ah.h	382 B	-rw-r--r--
arp.h	2 KB	-rw-r--r--
atmclip.h	1.48 KB	-rw-r--r--
ax25.h	15.02 KB	-rw-r--r--
ax88796.h	998 B	-rw-r--r--
bond_3ad.h	9.79 KB	-rw-r--r--
bond_alb.h	6.6 KB	-rw-r--r--
bond_options.h	3.92 KB	-rw-r--r--
bonding.h	19.1 KB	-rw-r--r--
busy_poll.h	3.81 KB	-rw-r--r--
calipso.h	2.15 KB	-rw-r--r--
cfg80211-wext.h	1.95 KB	-rw-r--r--
cfg80211.h	221.24 KB	-rw-r--r--
cfg802154.h	10.89 KB	-rw-r--r--
checksum.h	4.76 KB	-rw-r--r--
cipso_ipv4.h	8.2 KB	-rw-r--r--
cls_cgroup.h	2.15 KB	-rw-r--r--
codel.h	5.65 KB	-rw-r--r--
codel_impl.h	7.98 KB	-rw-r--r--
codel_qdisc.h	2.9 KB	-rw-r--r--
compat.h	2.11 KB	-rw-r--r--
datalink.h	619 B	-rw-r--r--
dcbevent.h	1.26 KB	-rw-r--r--
dcbnl.h	4.2 KB	-rw-r--r--
devlink.h	13.25 KB	-rw-r--r--
dn.h	6.88 KB	-rw-r--r--
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dn_fib.h	3.98 KB	-rw-r--r--
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dst.h	13.48 KB	-rw-r--r--
dst_cache.h	2.53 KB	-rw-r--r--
dst_metadata.h	5.39 KB	-rw-r--r--
dst_ops.h	2 KB	-rw-r--r--
erspan.h	2.11 KB	-rw-r--r--
esp.h	877 B	-rw-r--r--
ethoc.h	538 B	-rw-r--r--
fib_notifier.h	1.29 KB	-rw-r--r--
fib_rules.h	4.18 KB	-rw-r--r--
firewire.h	636 B	-rw-r--r--
flow.h	6.16 KB	-rw-r--r--
flow_dissector.h	7.55 KB	-rw-r--r--
fou.h	549 B	-rw-r--r--
fq.h	2.67 KB	-rw-r--r--
fq_impl.h	6.9 KB	-rw-r--r--
garp.h	2.62 KB	-rw-r--r--
gen_stats.h	2.34 KB	-rw-r--r--
genetlink.h	11.3 KB	-rw-r--r--
geneve.h	1.67 KB	-rw-r--r--
gre.h	2.99 KB	-rw-r--r--
gro_cells.h	443 B	-rw-r--r--
gtp.h	633 B	-rw-r--r--
gue.h	3.23 KB	-rw-r--r--
hwbm.h	937 B	-rw-r--r--
icmp.h	2.01 KB	-rw-r--r--
ieee80211_radiotap.h	6.63 KB	-rw-r--r--
ieee802154_netdev.h	10.24 KB	-rw-r--r--
if_inet6.h	6.13 KB	-rw-r--r--
ife.h	1.06 KB	-rw-r--r--
ila.h	498 B	-rw-r--r--
inet6_connection_sock.h	976 B	-rw-r--r--
inet6_hashtables.h	3.7 KB	-rw-r--r--
inet_common.h	1.89 KB	-rw-r--r--
inet_connection_sock.h	10.48 KB	-rw-r--r--
inet_ecn.h	6.02 KB	-rw-r--r--
inet_frag.h	4.51 KB	-rw-r--r--
inet_hashtables.h	12.91 KB	-rw-r--r--
inet_sock.h	8.25 KB	-rw-r--r--
inet_timewait_sock.h	3.82 KB	-rw-r--r--
inetpeer.h	3.29 KB	-rw-r--r--
ip.h	18.51 KB	-rw-r--r--
ip6_checksum.h	2.89 KB	-rw-r--r--
ip6_fib.h	10.04 KB	-rw-r--r--
ip6_route.h	7.63 KB	-rw-r--r--
ip6_tunnel.h	4.72 KB	-rw-r--r--
ip_fib.h	10.72 KB	-rw-r--r--
ip_tunnels.h	13.61 KB	-rw-r--r--
ip_vs.h	46.78 KB	-rw-r--r--
ipcomp.h	659 B	-rw-r--r--
ipconfig.h	811 B	-rw-r--r--
ipv6.h	29.97 KB	-rw-r--r--
ipv6_frag.h	2.54 KB	-rw-r--r--
ipx.h	4.4 KB	-rw-r--r--
iw_handler.h	20.91 KB	-rw-r--r--
kcm.h	4.96 KB	-rw-r--r--
l3mdev.h	5.86 KB	-rw-r--r--
lapb.h	4.75 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--
llc_if.h	2.16 KB	-rw-r--r--
llc_pdu.h	14.44 KB	-rw-r--r--
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	5.84 KB	-rw-r--r--
mac80211.h	230.36 KB	-rw-r--r--
mac802154.h	15.27 KB	-rw-r--r--
mip6.h	1.58 KB	-rw-r--r--
mld.h	2.8 KB	-rw-r--r--
mpls.h	932 B	-rw-r--r--
mpls_iptunnel.h	827 B	-rw-r--r--
mrp.h	3.05 KB	-rw-r--r--
ncsi.h	1.92 KB	-rw-r--r--
ndisc.h	13.77 KB	-rw-r--r--
neighbour.h	15.06 KB	-rw-r--r--
net_namespace.h	10.08 KB	-rw-r--r--
net_ratelimit.h	220 B	-rw-r--r--
netevent.h	910 B	-rw-r--r--
netlabel.h	20.74 KB	-rw-r--r--
netlink.h	40.39 KB	-rw-r--r--
netprio_cgroup.h	1.24 KB	-rw-r--r--
netrom.h	7.68 KB	-rw-r--r--
nexthop.h	865 B	-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--
ping.h	3.45 KB	-rw-r--r--
pkt_cls.h	17.34 KB	-rw-r--r--
pkt_sched.h	4.05 KB	-rw-r--r--
pptp.h	557 B	-rw-r--r--
protocol.h	3.89 KB	-rw-r--r--
psample.h	860 B	-rw-r--r--
psnap.h	351 B	-rw-r--r--
raw.h	2.07 KB	-rw-r--r--
rawv6.h	854 B	-rw-r--r--
red.h	10.45 KB	-rw-r--r--
regulatory.h	10.12 KB	-rw-r--r--
request_sock.h	6.46 KB	-rw-r--r--
rose.h	7.62 KB	-rw-r--r--
route.h	10.02 KB	-rw-r--r--
rtnetlink.h	6.13 KB	-rw-r--r--
sch_generic.h	23.3 KB	-rw-r--r--
scm.h	3.5 KB	-rw-r--r--
secure_seq.h	855 B	-rw-r--r--
seg6.h	1.66 KB	-rw-r--r--
seg6_hmac.h	1.65 KB	-rw-r--r--
slhc_vj.h	6.67 KB	-rw-r--r--
smc.h	440 B	-rw-r--r--
snmp.h	5.23 KB	-rw-r--r--
sock.h	70.05 KB	-rw-r--r--
sock_reuseport.h	863 B	-rw-r--r--
stp.h	383 B	-rw-r--r--
strparser.h	3.75 KB	-rw-r--r--
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tcp.h	62.88 KB	-rw-r--r--
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tipc.h	2.34 KB	-rw-r--r--
tls.h	7.12 KB	-rw-r--r--
transp_v6.h	2.08 KB	-rw-r--r--
tso.h	515 B	-rw-r--r--
tun_proto.h	988 B	-rw-r--r--
udp.h	12.87 KB	-rw-r--r--
udp_tunnel.h	5.12 KB	-rw-r--r--
udplite.h	3.83 KB	-rw-r--r--
vsock_addr.h	1.05 KB	-rw-r--r--
vxlan.h	10.43 KB	-rw-r--r--
wext.h	1.51 KB	-rw-r--r--
wimax.h	19.97 KB	-rw-r--r--
x25.h	9.43 KB	-rw-r--r--
x25device.h	387 B	-rw-r--r--
xfrm.h	53.72 KB	-rw-r--r--

Code Editor : ip6_fib.h

/*
 *	Linux INET6 implementation 
 *
 *	Authors:
 *	Pedro Roque		<roque@di.fc.ul.pt>	
 *
 *	This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */

#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/netlink.h>
#include <net/inetpeer.h>
#include <net/fib_notifier.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_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,
			__unused : 15;

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;
};

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 rt6_info __rcu	*leaf;

__u16			fn_bit;		/* bit key */
	__u16			fn_flags;
	int			fn_sernum;
	struct rt6_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
#else
#define FIB6_SUBTREE(fn)	(rcu_dereference_protected((fn)->subtree, 1))
#endif

struct mx6_config {
	const u32 *mx;
	DECLARE_BITMAP(mx_valid, RTAX_MAX);
};

/*
 *	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 rt6_info {
	struct dst_entry		dst;

/*
	 * Tail elements of dst_entry (__refcnt etc.)
	 * and these elements (rarely used in hot path) are in
	 * the same cache line.
	 */
	struct fib6_table		*rt6i_table;
	struct fib6_node __rcu		*rt6i_node;

struct in6_addr			rt6i_gateway;

/* Multipath routes:
	 * siblings is a list of rt6_info that have the the same metric/weight,
	 * destination, but not the same gateway. nsiblings is just a cache
	 * to speed up lookup.
	 */
	struct list_head		rt6i_siblings;
	unsigned int			rt6i_nsiblings;

atomic_t			rt6i_ref;

unsigned int			rt6i_nh_flags;

/* These are in a separate cache line. */
	struct rt6key			rt6i_dst ____cacheline_aligned_in_smp;
	u32				rt6i_flags;
	struct rt6key			rt6i_src;
	struct rt6key			rt6i_prefsrc;

struct list_head		rt6i_uncached;
	struct uncached_list		*rt6i_uncached_list;

struct inet6_dev		*rt6i_idev;
	struct rt6_info * __percpu	*rt6i_pcpu;
	struct rt6_exception_bucket __rcu *rt6i_exception_bucket;

u32				rt6i_metric;
	u32				rt6i_pmtu;
	/* more non-fragment space at head required */
	unsigned short			rt6i_nfheader_len;
	u8				rt6i_protocol;
	u8				exception_bucket_flushed:1,
					unused:7;
};

#define for_each_fib6_node_rt_rcu(fn)					\
	for (rt = rcu_dereference((fn)->leaf); rt;			\
	     rt = rcu_dereference(rt->dst.rt6_next))

#define for_each_fib6_walker_rt(w)					\
	for (rt = (w)->leaf; rt;					\
	     rt = rcu_dereference_protected(rt->dst.rt6_next, 1))

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

static inline void rt6_clean_expires(struct rt6_info *rt)
{
	rt->rt6i_flags &= ~RTF_EXPIRES;
	rt->dst.expires = 0;
}

static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires)
{
	rt->dst.expires = expires;
	rt->rt6i_flags |= RTF_EXPIRES;
}

static inline void rt6_update_expires(struct rt6_info *rt0, int timeout)
{
	struct rt6_info *rt;

for (rt = rt0; rt && !(rt->rt6i_flags & RTF_EXPIRES);
	     rt = (struct rt6_info *)rt->dst.from);
	if (rt && rt != rt0)
		rt0->dst.expires = rt->dst.expires;

dst_set_expires(&rt0->dst, timeout);
	rt0->rt6i_flags |= RTF_EXPIRES;
}

/* Function to safely get 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 rt6_get_cookie_safe(const struct rt6_info *rt,
				       u32 *cookie)
{
	struct fib6_node *fn;
	bool status = false;

rcu_read_lock();
	fn = rcu_dereference(rt->rt6i_node);

if (fn) {
		*cookie = READ_ONCE(fn->fn_sernum);
		/* pairs with smp_wmb() in fib6_update_sernum_upto_root() */
		smp_rmb();
		status = true;
	}

rcu_read_unlock();
	return status;
}

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

if (rt->dst.from)
		rt = (struct rt6_info *)(rt->dst.from);

rt6_get_cookie_safe(rt, &cookie);

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);
}

void rt6_free_pcpu(struct rt6_info *non_pcpu_rt);

static inline void rt6_hold(struct rt6_info *rt)
{
	atomic_inc(&rt->rt6i_ref);
}

static inline void rt6_release(struct rt6_info *rt)
{
	if (atomic_dec_and_test(&rt->rt6i_ref)) {
		rt6_free_pcpu(rt);
		dst_dev_put(&rt->dst);
		dst_release(&rt->dst);
	}
}

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 rt6_info *leaf;
	enum fib6_walk_state state;
	unsigned int skip;
	unsigned int count;
	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 *, int);

struct fib6_entry_notifier_info {
	struct fib_notifier_info info; /* must be first */
	struct rt6_info *rt;
};

/*
 *	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,
				   int flags, pol_lookup_t lookup);

struct fib6_node *fib6_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 rt6_info *, void *arg),
		    void *arg);

int fib6_add(struct fib6_node *root, struct rt6_info *rt,
	     struct nl_info *info, struct mx6_config *mxc,
	     struct netlink_ext_ack *extack);
int fib6_del(struct rt6_info *rt, struct nl_info *info);

void inet6_rt_notify(int event, struct rt6_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);

int ipv6_route_open(struct inode *inode, struct file *file);

int call_fib6_notifier(struct notifier_block *nb, struct net *net,
		       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);

void fib6_update_sernum(struct rt6_info *rt);

#ifdef CONFIG_IPV6_MULTIPLE_TABLES
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);
unsigned int fib6_rules_seq_read(struct net *net);
#else
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)
{
	return 0;
}
static inline unsigned int fib6_rules_seq_read(struct net *net)
{
	return 0;
}
#endif
#endif

${this.title}

Code Editor : ip6_fib.h