net_namespace.h (7057bb975dab827997e0ca9dd92cafef0856b0cc) net_namespace.h (19efbd93e6fb05eab81856b4fc8d64211dd37088)
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Operations on the network namespace
4 */
5#ifndef __NET_NET_NAMESPACE_H
6#define __NET_NET_NAMESPACE_H
7
8#include <linux/atomic.h>

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55 * namespace should be shut down.
56 */
57 spinlock_t rules_mod_lock;
58
59 atomic64_t cookie_gen;
60
61 struct list_head list; /* list of network namespaces */
62 struct list_head cleanup_list; /* namespaces on death row */
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Operations on the network namespace
4 */
5#ifndef __NET_NET_NAMESPACE_H
6#define __NET_NET_NAMESPACE_H
7
8#include <linux/atomic.h>

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55 * namespace should be shut down.
56 */
57 spinlock_t rules_mod_lock;
58
59 atomic64_t cookie_gen;
60
61 struct list_head list; /* list of network namespaces */
62 struct list_head cleanup_list; /* namespaces on death row */
63 struct list_head exit_list; /* Use only net_mutex */
64
63 struct list_head exit_list; /* To linked to call pernet exit
64 * methods on dead net (net_sem
65 * read locked), or to unregister
66 * pernet ops (net_sem wr locked).
67 */
65 struct user_namespace *user_ns; /* Owning user namespace */
66 struct ucounts *ucounts;
67 spinlock_t nsid_lock;
68 struct idr netns_ids;
69
70 struct ns_common ns;
71
72 struct proc_dir_entry *proc_net;

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84 struct hlist_head *dev_index_head;
85 unsigned int dev_base_seq; /* protected by rtnl_mutex */
86 int ifindex;
87 unsigned int dev_unreg_count;
88
89 /* core fib_rules */
90 struct list_head rules_ops;
91
68 struct user_namespace *user_ns; /* Owning user namespace */
69 struct ucounts *ucounts;
70 spinlock_t nsid_lock;
71 struct idr netns_ids;
72
73 struct ns_common ns;
74
75 struct proc_dir_entry *proc_net;

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87 struct hlist_head *dev_index_head;
88 unsigned int dev_base_seq; /* protected by rtnl_mutex */
89 int ifindex;
90 unsigned int dev_unreg_count;
91
92 /* core fib_rules */
93 struct list_head rules_ops;
94
92 struct list_head fib_notifier_ops; /* protected by net_mutex */
95 struct list_head fib_notifier_ops; /* protected by net_sem */
93
94 struct net_device *loopback_dev; /* The loopback */
95 struct netns_core core;
96 struct netns_mib mib;
97 struct netns_packet packet;
98 struct netns_unix unx;
99 struct netns_ipv4 ipv4;
100#if IS_ENABLED(CONFIG_IPV6)

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308
309struct pernet_operations {
310 struct list_head list;
311 int (*init)(struct net *net);
312 void (*exit)(struct net *net);
313 void (*exit_batch)(struct list_head *net_exit_list);
314 unsigned int *id;
315 size_t size;
96
97 struct net_device *loopback_dev; /* The loopback */
98 struct netns_core core;
99 struct netns_mib mib;
100 struct netns_packet packet;
101 struct netns_unix unx;
102 struct netns_ipv4 ipv4;
103#if IS_ENABLED(CONFIG_IPV6)

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311
312struct pernet_operations {
313 struct list_head list;
314 int (*init)(struct net *net);
315 void (*exit)(struct net *net);
316 void (*exit_batch)(struct list_head *net_exit_list);
317 unsigned int *id;
318 size_t size;
319 /*
320 * Indicates above methods are allowed to be executed in parallel
321 * with methods of any other pernet_operations, i.e. they are not
322 * need write locked net_sem.
323 */
324 bool async;
316};
317
318/*
319 * Use these carefully. If you implement a network device and it
320 * needs per network namespace operations use device pernet operations,
321 * otherwise use pernet subsys operations.
322 *
323 * Network interfaces need to be removed from a dying netns _before_

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326
327/*
328 * Use these carefully. If you implement a network device and it
329 * needs per network namespace operations use device pernet operations,
330 * otherwise use pernet subsys operations.
331 *
332 * Network interfaces need to be removed from a dying netns _before_

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