include/net/netns/xfrm.h

   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
  10 struct ctl_table_header;
  11
  12 struct xfrm_policy_hash {
  13         struct hlist_head       *table;
  14         unsigned int            hmask;
  15 };
  16
  17 struct 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         struct list_head        policy_all;
  37         struct hlist_head       *policy_byidx;
  38         unsigned int            policy_idx_hmask;
  39         struct hlist_head       policy_inexact[XFRM_POLICY_MAX * 2];
  40         struct xfrm_policy_hash policy_bydst[XFRM_POLICY_MAX * 2];
  41         unsigned int            policy_count[XFRM_POLICY_MAX * 2];
  42         struct work_struct      policy_hash_work;
  43
  44
  45         struct sock             *nlsk;
  46         struct sock             *nlsk_stash;
  47
  48         u32                     sysctl_aevent_etime;
  49         u32                     sysctl_aevent_rseqth;
  50         int                     sysctl_larval_drop;
  51         u32                     sysctl_acq_expires;
  52 #ifdef CONFIG_SYSCTL
  53         struct ctl_table_header *sysctl_hdr;
  54 #endif
  55
  56         struct dst_ops          xfrm4_dst_ops;
  57 #if IS_ENABLED(CONFIG_IPV6)
  58         struct dst_ops          xfrm6_dst_ops;
  59 #endif
  60         spinlock_t xfrm_state_lock;
  61         spinlock_t xfrm_policy_sk_bundle_lock;
  62         rwlock_t xfrm_policy_lock;
  63         struct mutex xfrm_cfg_mutex;
  64 };
  65
  66 #endif