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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
6lowpan.h	10.03 KB	-rw-r--r--
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--
af_rxrpc.h	2.73 KB	-rw-r--r--
af_unix.h	2.92 KB	-rw-r--r--
af_vsock.h	7.37 KB	-rw-r--r--
ah.h	382 B	-rw-r--r--
arp.h	2.03 KB	-rw-r--r--
atmclip.h	1.48 KB	-rw-r--r--
ax25.h	14.84 KB	-rw-r--r--
ax88796.h	1.41 KB	-rw-r--r--
bareudp.h	572 B	-rw-r--r--
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bond_options.h	3.76 KB	-rw-r--r--
bonding.h	20.18 KB	-rw-r--r--
bpf_sk_storage.h	1.74 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--
codel_impl.h	7.98 KB	-rw-r--r--
codel_qdisc.h	2.9 KB	-rw-r--r--
compat.h	2.53 KB	-rw-r--r--
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esp.h	1.23 KB	-rw-r--r--
espintcp.h	966 B	-rw-r--r--
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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gro_cells.h	443 B	-rw-r--r--
gtp.h	633 B	-rw-r--r--
gue.h	3.24 KB	-rw-r--r--
hwbm.h	969 B	-rw-r--r--
icmp.h	1.87 KB	-rw-r--r--
ieee80211_radiotap.h	13.2 KB	-rw-r--r--
ieee802154_netdev.h	8.75 KB	-rw-r--r--
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ife.h	1.03 KB	-rw-r--r--
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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--
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llc_conn.h	4.06 KB	-rw-r--r--
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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	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 : net_namespace.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Operations on the network namespace
 */
#ifndef __NET_NET_NAMESPACE_H
#define __NET_NET_NAMESPACE_H

#include <linux/atomic.h>
#include <linux/refcount.h>
#include <linux/workqueue.h>
#include <linux/list.h>
#include <linux/sysctl.h>
#include <linux/uidgid.h>

#include <net/flow.h>
#include <net/netns/core.h>
#include <net/netns/mib.h>
#include <net/netns/unix.h>
#include <net/netns/packet.h>
#include <net/netns/ipv4.h>
#include <net/netns/ipv6.h>
#include <net/netns/nexthop.h>
#include <net/netns/ieee802154_6lowpan.h>
#include <net/netns/sctp.h>
#include <net/netns/netfilter.h>
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
#include <net/netns/conntrack.h>
#endif
#include <net/netns/nftables.h>
#include <net/netns/xfrm.h>
#include <net/netns/mpls.h>
#include <net/netns/can.h>
#include <net/netns/xdp.h>
#include <net/netns/smc.h>
#include <net/netns/bpf.h>
#include <net/netns/mctp.h>
#include <linux/ns_common.h>
#include <linux/idr.h>
#include <linux/skbuff.h>
#include <linux/notifier.h>

struct user_namespace;
struct proc_dir_entry;
struct net_device;
struct sock;
struct ctl_table_header;
struct net_generic;
struct uevent_sock;
struct netns_ipvs;
struct bpf_prog;

#define NETDEV_HASHBITS    8
#define NETDEV_HASHENTRIES (1 << NETDEV_HASHBITS)

struct net {
	/* First cache line can be often dirtied.
	 * Do not place here read-mostly fields.
	 */
	refcount_t		passive;	/* To decide when the network
						 * namespace should be freed.
						 */
	spinlock_t		rules_mod_lock;

unsigned int		dev_unreg_count;

unsigned int		dev_base_seq;	/* protected by rtnl_mutex */
	int			ifindex;

spinlock_t		nsid_lock;
	atomic_t		fnhe_genid;

struct list_head	list;		/* list of network namespaces */
	struct list_head	exit_list;	/* To linked to call pernet exit
						 * methods on dead net (
						 * pernet_ops_rwsem read locked),
						 * or to unregister pernet ops
						 * (pernet_ops_rwsem write locked).
						 */
	struct llist_node	cleanup_list;	/* namespaces on death row */

#ifdef CONFIG_KEYS
	struct key_tag		*key_domain;	/* Key domain of operation tag */
#endif
	struct user_namespace   *user_ns;	/* Owning user namespace */
	struct ucounts		*ucounts;
	struct idr		netns_ids;

struct ns_common	ns;

struct list_head 	dev_base_head;
	struct proc_dir_entry 	*proc_net;
	struct proc_dir_entry 	*proc_net_stat;

#ifdef CONFIG_SYSCTL
	struct ctl_table_set	sysctls;
#endif

struct sock 		*rtnl;			/* rtnetlink socket */
	struct sock		*genl_sock;

struct uevent_sock	*uevent_sock;		/* uevent socket */

struct hlist_head 	*dev_name_head;
	struct hlist_head	*dev_index_head;
	struct raw_notifier_head	netdev_chain;

/* Note that @hash_mix can be read millions times per second,
	 * it is critical that it is on a read_mostly cache line.
	 */
	u32			hash_mix;

struct net_device       *loopback_dev;          /* The loopback */

/* core fib_rules */
	struct list_head	rules_ops;

struct netns_core	core;
	struct netns_mib	mib;
	struct netns_packet	packet;
	struct netns_unix	unx;
	struct netns_nexthop	nexthop;
	struct netns_ipv4	ipv4;
#if IS_ENABLED(CONFIG_IPV6)
	struct netns_ipv6	ipv6;
#endif
#if IS_ENABLED(CONFIG_IEEE802154_6LOWPAN)
	struct netns_ieee802154_lowpan	ieee802154_lowpan;
#endif
#if defined(CONFIG_IP_SCTP) || defined(CONFIG_IP_SCTP_MODULE)
	struct netns_sctp	sctp;
#endif
#ifdef CONFIG_NETFILTER
	struct netns_nf		nf;
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
	struct netns_ct		ct;
#endif
#if defined(CONFIG_NF_TABLES) || defined(CONFIG_NF_TABLES_MODULE)
	struct netns_nftables	nft;
#endif
#endif
#ifdef CONFIG_WEXT_CORE
	struct sk_buff_head	wext_nlevents;
#endif
	struct net_generic __rcu	*gen;

/* Used to store attached BPF programs */
	struct netns_bpf	bpf;

/* Note : following structs are cache line aligned */
#ifdef CONFIG_XFRM
	struct netns_xfrm	xfrm;
#endif

u64			net_cookie; /* written once */

#if IS_ENABLED(CONFIG_IP_VS)
	struct netns_ipvs	*ipvs;
#endif
#if IS_ENABLED(CONFIG_MPLS)
	struct netns_mpls	mpls;
#endif
#if IS_ENABLED(CONFIG_CAN)
	struct netns_can	can;
#endif
#ifdef CONFIG_XDP_SOCKETS
	struct netns_xdp	xdp;
#endif
#if IS_ENABLED(CONFIG_MCTP)
	struct netns_mctp	mctp;
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
	struct sock		*crypto_nlsk;
#endif
	struct sock		*diag_nlsk;
#if IS_ENABLED(CONFIG_SMC)
	struct netns_smc	smc;
#endif
} __randomize_layout;

#include <linux/seq_file_net.h>

/* Init's network namespace */
extern struct net init_net;

#ifdef CONFIG_NET_NS
struct net *copy_net_ns(unsigned long flags, struct user_namespace *user_ns,
			struct net *old_net);

void net_ns_get_ownership(const struct net *net, kuid_t *uid, kgid_t *gid);

void net_ns_barrier(void);

struct ns_common *get_net_ns(struct ns_common *ns);
struct net *get_net_ns_by_fd(int fd);
#else /* CONFIG_NET_NS */
#include <linux/sched.h>
#include <linux/nsproxy.h>
static inline struct net *copy_net_ns(unsigned long flags,
	struct user_namespace *user_ns, struct net *old_net)
{
	if (flags & CLONE_NEWNET)
		return ERR_PTR(-EINVAL);
	return old_net;
}

static inline void net_ns_get_ownership(const struct net *net,
					kuid_t *uid, kgid_t *gid)
{
	*uid = GLOBAL_ROOT_UID;
	*gid = GLOBAL_ROOT_GID;
}

static inline void net_ns_barrier(void) {}

static inline struct ns_common *get_net_ns(struct ns_common *ns)
{
	return ERR_PTR(-EINVAL);
}

static inline struct net *get_net_ns_by_fd(int fd)
{
	return ERR_PTR(-EINVAL);
}
#endif /* CONFIG_NET_NS */

extern struct list_head net_namespace_list;

struct net *get_net_ns_by_pid(pid_t pid);

#ifdef CONFIG_SYSCTL
void ipx_register_sysctl(void);
void ipx_unregister_sysctl(void);
#else
#define ipx_register_sysctl()
#define ipx_unregister_sysctl()
#endif

#ifdef CONFIG_NET_NS
void __put_net(struct net *net);

static inline struct net *get_net(struct net *net)
{
	refcount_inc(&net->ns.count);
	return net;
}

static inline struct net *maybe_get_net(struct net *net)
{
	/* Used when we know struct net exists but we
	 * aren't guaranteed a previous reference count
	 * exists.  If the reference count is zero this
	 * function fails and returns NULL.
	 */
	if (!refcount_inc_not_zero(&net->ns.count))
		net = NULL;
	return net;
}

static inline void put_net(struct net *net)
{
	if (refcount_dec_and_test(&net->ns.count))
		__put_net(net);
}

static inline
int net_eq(const struct net *net1, const struct net *net2)
{
	return net1 == net2;
}

static inline int check_net(const struct net *net)
{
	return refcount_read(&net->ns.count) != 0;
}

void net_drop_ns(void *);

#else

static inline struct net *get_net(struct net *net)
{
	return net;
}

static inline void put_net(struct net *net)
{
}

static inline struct net *maybe_get_net(struct net *net)
{
	return net;
}

static inline
int net_eq(const struct net *net1, const struct net *net2)
{
	return 1;
}

static inline int check_net(const struct net *net)
{
	return 1;
}

#define net_drop_ns NULL
#endif

typedef struct {
#ifdef CONFIG_NET_NS
	struct net *net;
#endif
} possible_net_t;

static inline void write_pnet(possible_net_t *pnet, struct net *net)
{
#ifdef CONFIG_NET_NS
	pnet->net = net;
#endif
}

static inline struct net *read_pnet(const possible_net_t *pnet)
{
#ifdef CONFIG_NET_NS
	return pnet->net;
#else
	return &init_net;
#endif
}

/* Protected by net_rwsem */
#define for_each_net(VAR)				\
	list_for_each_entry(VAR, &net_namespace_list, list)
#define for_each_net_continue_reverse(VAR)		\
	list_for_each_entry_continue_reverse(VAR, &net_namespace_list, list)
#define for_each_net_rcu(VAR)				\
	list_for_each_entry_rcu(VAR, &net_namespace_list, list)

#ifdef CONFIG_NET_NS
#define __net_init
#define __net_exit
#define __net_initdata
#define __net_initconst
#else
#define __net_init	__init
#define __net_exit	__ref
#define __net_initdata	__initdata
#define __net_initconst	__initconst
#endif

int peernet2id_alloc(struct net *net, struct net *peer, gfp_t gfp);
int peernet2id(const struct net *net, struct net *peer);
bool peernet_has_id(const struct net *net, struct net *peer);
struct net *get_net_ns_by_id(const struct net *net, int id);

struct pernet_operations {
	struct list_head list;
	/*
	 * Below methods are called without any exclusive locks.
	 * More than one net may be constructed and destructed
	 * in parallel on several cpus. Every pernet_operations
	 * have to keep in mind all other pernet_operations and
	 * to introduce a locking, if they share common resources.
	 *
	 * The only time they are called with exclusive lock is
	 * from register_pernet_subsys(), unregister_pernet_subsys()
	 * register_pernet_device() and unregister_pernet_device().
	 *
	 * Exit methods using blocking RCU primitives, such as
	 * synchronize_rcu(), should be implemented via exit_batch.
	 * Then, destruction of a group of net requires single
	 * synchronize_rcu() related to these pernet_operations,
	 * instead of separate synchronize_rcu() for every net.
	 * Please, avoid synchronize_rcu() at all, where it's possible.
	 *
	 * Note that a combination of pre_exit() and exit() can
	 * be used, since a synchronize_rcu() is guaranteed between
	 * the calls.
	 */
	int (*init)(struct net *net);
	void (*pre_exit)(struct net *net);
	void (*exit)(struct net *net);
	void (*exit_batch)(struct list_head *net_exit_list);
	unsigned int *id;
	size_t size;
};

/*
 * Use these carefully.  If you implement a network device and it
 * needs per network namespace operations use device pernet operations,
 * otherwise use pernet subsys operations.
 *
 * Network interfaces need to be removed from a dying netns _before_
 * subsys notifiers can be called, as most of the network code cleanup
 * (which is done from subsys notifiers) runs with the assumption that
 * dev_remove_pack has been called so no new packets will arrive during
 * and after the cleanup functions have been called.  dev_remove_pack
 * is not per namespace so instead the guarantee of no more packets
 * arriving in a network namespace is provided by ensuring that all
 * network devices and all sockets have left the network namespace
 * before the cleanup methods are called.
 *
 * For the longest time the ipv4 icmp code was registered as a pernet
 * device which caused kernel oops, and panics during network
 * namespace cleanup.   So please don't get this wrong.
 */
int register_pernet_subsys(struct pernet_operations *);
void unregister_pernet_subsys(struct pernet_operations *);
int register_pernet_device(struct pernet_operations *);
void unregister_pernet_device(struct pernet_operations *);

struct ctl_table;

#ifdef CONFIG_SYSCTL
int net_sysctl_init(void);
struct ctl_table_header *register_net_sysctl(struct net *net, const char *path,
					     struct ctl_table *table);
void unregister_net_sysctl_table(struct ctl_table_header *header);
#else
static inline int net_sysctl_init(void) { return 0; }
static inline struct ctl_table_header *register_net_sysctl(struct net *net,
	const char *path, struct ctl_table *table)
{
	return NULL;
}
static inline void unregister_net_sysctl_table(struct ctl_table_header *header)
{
}
#endif

static inline int rt_genid_ipv4(const struct net *net)
{
	return atomic_read(&net->ipv4.rt_genid);
}

#if IS_ENABLED(CONFIG_IPV6)
static inline int rt_genid_ipv6(const struct net *net)
{
	return atomic_read(&net->ipv6.fib6_sernum);
}
#endif

static inline void rt_genid_bump_ipv4(struct net *net)
{
	atomic_inc(&net->ipv4.rt_genid);
}

extern void (*__fib6_flush_trees)(struct net *net);
static inline void rt_genid_bump_ipv6(struct net *net)
{
	if (__fib6_flush_trees)
		__fib6_flush_trees(net);
}

#if IS_ENABLED(CONFIG_IEEE802154_6LOWPAN)
static inline struct netns_ieee802154_lowpan *
net_ieee802154_lowpan(struct net *net)
{
	return &net->ieee802154_lowpan;
}
#endif

/* For callers who don't really care about whether it's IPv4 or IPv6 */
static inline void rt_genid_bump_all(struct net *net)
{
	rt_genid_bump_ipv4(net);
	rt_genid_bump_ipv6(net);
}

static inline int fnhe_genid(const struct net *net)
{
	return atomic_read(&net->fnhe_genid);
}

static inline void fnhe_genid_bump(struct net *net)
{
	atomic_inc(&net->fnhe_genid);
}

#endif /* __NET_NET_NAMESPACE_H */

${this.title}

Code Editor : net_namespace.h