1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __NETNS_XFRM_H
 3#define __NETNS_XFRM_H
 4
 5#include <linux/list.h>
 6#include <linux/wait.h>
 7#include <linux/workqueue.h>
 8#include <linux/rhashtable-types.h>
 9#include <linux/xfrm.h>
10#include <net/dst_ops.h>
11
12struct ctl_table_header;
13
14struct xfrm_policy_hash {
15	struct hlist_head	__rcu *table;
16	unsigned int		hmask;
17	u8			dbits4;
18	u8			sbits4;
19	u8			dbits6;
20	u8			sbits6;
21};
22
23struct xfrm_policy_hthresh {
24	struct work_struct	work;
25	seqlock_t		lock;
26	u8			lbits4;
27	u8			rbits4;
28	u8			lbits6;
29	u8			rbits6;
30};
31
32struct netns_xfrm {
33	struct list_head	state_all;
34	/*
35	 * Hash table to find appropriate SA towards given target (endpoint of
36	 * tunnel or destination of transport mode) allowed by selector.
37	 *
38	 * Main use is finding SA after policy selected tunnel or transport
39	 * mode. Also, it can be used by ah/esp icmp error handler to find
40	 * offending SA.
41	 */
42	struct hlist_head	__rcu *state_bydst;
43	struct hlist_head	__rcu *state_bysrc;
44	struct hlist_head	__rcu *state_byspi;
45	struct hlist_head	__rcu *state_byseq;
46	struct hlist_head	 __percpu *state_cache_input;
47	unsigned int		state_hmask;
48	unsigned int		state_num;
49	struct work_struct	state_hash_work;
50
51	struct list_head	policy_all;
52	struct hlist_head	*policy_byidx;
53	unsigned int		policy_idx_hmask;
54	unsigned int		idx_generator;
55	struct xfrm_policy_hash	policy_bydst[XFRM_POLICY_MAX];
56	unsigned int		policy_count[XFRM_POLICY_MAX * 2];
57	struct work_struct	policy_hash_work;
58	struct xfrm_policy_hthresh policy_hthresh;
59	struct list_head	inexact_bins;
60
61
62	struct sock		*nlsk;
63	struct sock		*nlsk_stash;
64
65	u32			sysctl_aevent_etime;
66	u32			sysctl_aevent_rseqth;
67	int			sysctl_larval_drop;
68	u32			sysctl_acq_expires;
69
70	u8			policy_default[XFRM_POLICY_MAX];
71
72#ifdef CONFIG_SYSCTL
73	struct ctl_table_header	*sysctl_hdr;
74#endif
75
76	struct dst_ops		xfrm4_dst_ops;
77#if IS_ENABLED(CONFIG_IPV6)
78	struct dst_ops		xfrm6_dst_ops;
79#endif
80	spinlock_t		xfrm_state_lock;
81	seqcount_spinlock_t	xfrm_state_hash_generation;
82	seqcount_spinlock_t	xfrm_policy_hash_generation;
83
84	spinlock_t xfrm_policy_lock;
85	struct mutex xfrm_cfg_mutex;
86	struct delayed_work	nat_keepalive_work;
87};
88
89#endif

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __NETNS_XFRM_H
 3#define __NETNS_XFRM_H
 4
 5#include <linux/list.h>
 6#include <linux/wait.h>
 7#include <linux/workqueue.h>
 8#include <linux/rhashtable-types.h>
 9#include <linux/xfrm.h>
10#include <net/dst_ops.h>
11
12struct ctl_table_header;
13
14struct xfrm_policy_hash {
15	struct hlist_head	__rcu *table;
16	unsigned int		hmask;
17	u8			dbits4;
18	u8			sbits4;
19	u8			dbits6;
20	u8			sbits6;
21};
22
23struct xfrm_policy_hthresh {
24	struct work_struct	work;
25	seqlock_t		lock;
26	u8			lbits4;
27	u8			rbits4;
28	u8			lbits6;
29	u8			rbits6;
30};
31
32struct netns_xfrm {
33	struct list_head	state_all;
34	/*
35	 * Hash table to find appropriate SA towards given target (endpoint of
36	 * tunnel or destination of transport mode) allowed by selector.
37	 *
38	 * Main use is finding SA after policy selected tunnel or transport
39	 * mode. Also, it can be used by ah/esp icmp error handler to find
40	 * offending SA.
41	 */
42	struct hlist_head	__rcu *state_bydst;
43	struct hlist_head	__rcu *state_bysrc;
44	struct hlist_head	__rcu *state_byspi;
45	struct hlist_head	__rcu *state_byseq;
 
46	unsigned int		state_hmask;
47	unsigned int		state_num;
48	struct work_struct	state_hash_work;
49
50	struct list_head	policy_all;
51	struct hlist_head	*policy_byidx;
52	unsigned int		policy_idx_hmask;
53	struct hlist_head	policy_inexact[XFRM_POLICY_MAX];
54	struct xfrm_policy_hash	policy_bydst[XFRM_POLICY_MAX];
55	unsigned int		policy_count[XFRM_POLICY_MAX * 2];
56	struct work_struct	policy_hash_work;
57	struct xfrm_policy_hthresh policy_hthresh;
58	struct list_head	inexact_bins;
59
60
61	struct sock		*nlsk;
62	struct sock		*nlsk_stash;
63
64	u32			sysctl_aevent_etime;
65	u32			sysctl_aevent_rseqth;
66	int			sysctl_larval_drop;
67	u32			sysctl_acq_expires;
 
 
 
68#ifdef CONFIG_SYSCTL
69	struct ctl_table_header	*sysctl_hdr;
70#endif
71
72	struct dst_ops		xfrm4_dst_ops;
73#if IS_ENABLED(CONFIG_IPV6)
74	struct dst_ops		xfrm6_dst_ops;
75#endif
76	spinlock_t		xfrm_state_lock;
77	seqcount_spinlock_t	xfrm_state_hash_generation;
78	seqcount_spinlock_t	xfrm_policy_hash_generation;
79
80	spinlock_t xfrm_policy_lock;
81	struct mutex xfrm_cfg_mutex;
 
82};
83
84#endif