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

 
 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#include <net/flowcache.h>
10
11struct ctl_table_header;
12
13struct xfrm_policy_hash {
14	struct hlist_head	*table;
15	unsigned int		hmask;
16	u8			dbits4;
17	u8			sbits4;
18	u8			dbits6;
19	u8			sbits6;
20};
21
22struct xfrm_policy_hthresh {
23	struct work_struct	work;
24	seqlock_t		lock;
25	u8			lbits4;
26	u8			rbits4;
27	u8			lbits6;
28	u8			rbits6;
29};
30
31struct netns_xfrm {
32	struct list_head	state_all;
33	/*
34	 * Hash table to find appropriate SA towards given target (endpoint of
35	 * tunnel or destination of transport mode) allowed by selector.
36	 *
37	 * Main use is finding SA after policy selected tunnel or transport
38	 * mode. Also, it can be used by ah/esp icmp error handler to find
39	 * offending SA.
40	 */
41	struct hlist_head	*state_bydst;
42	struct hlist_head	*state_bysrc;
43	struct hlist_head	*state_byspi;
44	unsigned int		state_hmask;
45	unsigned int		state_num;
46	struct work_struct	state_hash_work;
47	struct hlist_head	state_gc_list;
48	struct work_struct	state_gc_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
59
60	struct sock		*nlsk;
61	struct sock		*nlsk_stash;
62
63	u32			sysctl_aevent_etime;
64	u32			sysctl_aevent_rseqth;
65	int			sysctl_larval_drop;
66	u32			sysctl_acq_expires;
67#ifdef CONFIG_SYSCTL
68	struct ctl_table_header	*sysctl_hdr;
69#endif
70
71	struct dst_ops		xfrm4_dst_ops;
72#if IS_ENABLED(CONFIG_IPV6)
73	struct dst_ops		xfrm6_dst_ops;
74#endif
75	spinlock_t xfrm_state_lock;
76	rwlock_t xfrm_policy_lock;
77	struct mutex xfrm_cfg_mutex;
78
79	/* flow cache part */
80	struct flow_cache	flow_cache_global;
81	atomic_t		flow_cache_genid;
82	struct list_head	flow_cache_gc_list;
83	atomic_t		flow_cache_gc_count;
84	spinlock_t		flow_cache_gc_lock;
85	struct work_struct	flow_cache_gc_work;
86	struct work_struct	flow_cache_flush_work;
87	struct mutex		flow_flush_sem;
88};
89
90#endif