| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 <linux/android_kabi.h> |
| 11 | #include <net/dst_ops.h> |
| 12 | |
| 13 | struct ctl_table_header; |
| 14 | |
| 15 | struct xfrm_policy_hash { |
| 16 | struct hlist_head __rcu *table; |
| 17 | unsigned int hmask; |
| 18 | u8 dbits4; |
| 19 | u8 sbits4; |
| 20 | u8 dbits6; |
| 21 | u8 sbits6; |
| 22 | }; |
| 23 | |
| 24 | struct xfrm_policy_hthresh { |
| 25 | struct work_struct work; |
| 26 | seqlock_t lock; |
| 27 | u8 lbits4; |
| 28 | u8 rbits4; |
| 29 | u8 lbits6; |
| 30 | u8 rbits6; |
| 31 | }; |
| 32 | |
| 33 | struct netns_xfrm { |
| 34 | struct list_head state_all; |
| 35 | /* |
| 36 | * Hash table to find appropriate SA towards given target (endpoint of |
| 37 | * tunnel or destination of transport mode) allowed by selector. |
| 38 | * |
| 39 | * Main use is finding SA after policy selected tunnel or transport |
| 40 | * mode. Also, it can be used by ah/esp icmp error handler to find |
| 41 | * offending SA. |
| 42 | */ |
| 43 | struct hlist_head __rcu *state_bydst; |
| 44 | struct hlist_head __rcu *state_bysrc; |
| 45 | struct hlist_head __rcu *state_byspi; |
| 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 | #ifdef CONFIG_SYSCTL |
| 70 | struct ctl_table_header *sysctl_hdr; |
| 71 | #endif |
| 72 | |
| 73 | struct dst_ops xfrm4_dst_ops; |
| 74 | #if IS_ENABLED(CONFIG_IPV6) |
| 75 | struct dst_ops xfrm6_dst_ops; |
| 76 | #endif |
| 77 | spinlock_t xfrm_state_lock; |
| 78 | seqcount_t xfrm_state_hash_generation; |
| 79 | |
| 80 | spinlock_t xfrm_policy_lock; |
| 81 | struct mutex xfrm_cfg_mutex; |
| 82 | |
| 83 | ANDROID_KABI_RESERVE(1); |
| 84 | }; |
| 85 | |
| 86 | #endif |