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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 unsigned int state_hmask;
46 unsigned int state_num;
47 struct work_struct state_hash_work;
48
49 struct list_head policy_all;
50 struct hlist_head *policy_byidx;
51 unsigned int policy_idx_hmask;
52 struct hlist_head policy_inexact[XFRM_POLICY_MAX];
53 struct xfrm_policy_hash policy_bydst[XFRM_POLICY_MAX];
54 unsigned int policy_count[XFRM_POLICY_MAX * 2];
55 struct work_struct policy_hash_work;
56 struct xfrm_policy_hthresh policy_hthresh;
57 struct list_head inexact_bins;
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 spinlock_t xfrm_policy_lock;
77 struct mutex xfrm_cfg_mutex;
78};
79
80#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};
17
18struct netns_xfrm {
19 struct list_head state_all;
20 /*
21 * Hash table to find appropriate SA towards given target (endpoint of
22 * tunnel or destination of transport mode) allowed by selector.
23 *
24 * Main use is finding SA after policy selected tunnel or transport
25 * mode. Also, it can be used by ah/esp icmp error handler to find
26 * offending SA.
27 */
28 struct hlist_head *state_bydst;
29 struct hlist_head *state_bysrc;
30 struct hlist_head *state_byspi;
31 unsigned int state_hmask;
32 unsigned int state_num;
33 struct work_struct state_hash_work;
34 struct hlist_head state_gc_list;
35 struct work_struct state_gc_work;
36
37 struct list_head policy_all;
38 struct hlist_head *policy_byidx;
39 unsigned int policy_idx_hmask;
40 struct hlist_head policy_inexact[XFRM_POLICY_MAX * 2];
41 struct xfrm_policy_hash policy_bydst[XFRM_POLICY_MAX * 2];
42 unsigned int policy_count[XFRM_POLICY_MAX * 2];
43 struct work_struct policy_hash_work;
44
45
46 struct sock *nlsk;
47 struct sock *nlsk_stash;
48
49 u32 sysctl_aevent_etime;
50 u32 sysctl_aevent_rseqth;
51 int sysctl_larval_drop;
52 u32 sysctl_acq_expires;
53#ifdef CONFIG_SYSCTL
54 struct ctl_table_header *sysctl_hdr;
55#endif
56
57 struct dst_ops xfrm4_dst_ops;
58#if IS_ENABLED(CONFIG_IPV6)
59 struct dst_ops xfrm6_dst_ops;
60#endif
61 spinlock_t xfrm_state_lock;
62 rwlock_t xfrm_policy_lock;
63 struct mutex xfrm_cfg_mutex;
64
65 /* flow cache part */
66 struct flow_cache flow_cache_global;
67 atomic_t flow_cache_genid;
68 struct list_head flow_cache_gc_list;
69 spinlock_t flow_cache_gc_lock;
70 struct work_struct flow_cache_gc_work;
71 struct work_struct flow_cache_flush_work;
72 struct mutex flow_flush_sem;
73};
74
75#endif