1#ifndef __NETNS_XFRM_H
 2#define __NETNS_XFRM_H
 3
 4#include <linux/list.h>
 5#include <linux/wait.h>
 6#include <linux/workqueue.h>
 
 7#include <linux/xfrm.h>
 8#include <net/dst_ops.h>
 9
10struct ctl_table_header;
11
12struct xfrm_policy_hash {
13	struct hlist_head	*table;
14	unsigned int		hmask;
 
 
 
 
 
 
 
 
 
 
 
 
 
15};
16
17struct netns_xfrm {
18	struct list_head	state_all;
19	/*
20	 * Hash table to find appropriate SA towards given target (endpoint of
21	 * tunnel or destination of transport mode) allowed by selector.
22	 *
23	 * Main use is finding SA after policy selected tunnel or transport
24	 * mode. Also, it can be used by ah/esp icmp error handler to find
25	 * offending SA.
26	 */
27	struct hlist_head	*state_bydst;
28	struct hlist_head	*state_bysrc;
29	struct hlist_head	*state_byspi;
 
30	unsigned int		state_hmask;
31	unsigned int		state_num;
32	struct work_struct	state_hash_work;
33	struct hlist_head	state_gc_list;
34	struct work_struct	state_gc_work;
35
36	wait_queue_head_t	km_waitq;
37
38	struct list_head	policy_all;
39	struct hlist_head	*policy_byidx;
40	unsigned int		policy_idx_hmask;
41	struct hlist_head	policy_inexact[XFRM_POLICY_MAX * 2];
42	struct xfrm_policy_hash	policy_bydst[XFRM_POLICY_MAX * 2];
 
43	unsigned int		policy_count[XFRM_POLICY_MAX * 2];
44	struct work_struct	policy_hash_work;
 
 
45
46
47	struct sock		*nlsk;
48	struct sock		*nlsk_stash;
49
50	u32			sysctl_aevent_etime;
51	u32			sysctl_aevent_rseqth;
52	int			sysctl_larval_drop;
53	u32			sysctl_acq_expires;
 
 
 
54#ifdef CONFIG_SYSCTL
55	struct ctl_table_header	*sysctl_hdr;
56#endif
57
58	struct dst_ops		xfrm4_dst_ops;
59#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
60	struct dst_ops		xfrm6_dst_ops;
61#endif
 
 
 
 
 
 
62};
63
64#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	unsigned int		idx_generator;
54	struct hlist_head	policy_inexact[XFRM_POLICY_MAX];
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};
87
88#endif