linux-stable/include/net/netns/xfrm.h
Eric W. Biederman d79d792ef9 net: Allow xfrm_user_net_exit to batch efficiently.
xfrm.nlsk is provided by the xfrm_user module and is access via rcu from
other parts of the xfrm code.  Add xfrm.nlsk_stash a copy of xfrm.nlsk that
will never be set to NULL.  This allows the synchronize_net and
netlink_kernel_release to be deferred until a whole batch of xfrm.nlsk sockets
have been set to NULL.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-03 12:22:03 -08:00

57 lines
1.4 KiB
C

#ifndef __NETNS_XFRM_H
#define __NETNS_XFRM_H
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
#include <linux/xfrm.h>
struct ctl_table_header;
struct xfrm_policy_hash {
struct hlist_head *table;
unsigned int hmask;
};
struct netns_xfrm {
struct list_head state_all;
/*
* Hash table to find appropriate SA towards given target (endpoint of
* tunnel or destination of transport mode) allowed by selector.
*
* Main use is finding SA after policy selected tunnel or transport
* mode. Also, it can be used by ah/esp icmp error handler to find
* offending SA.
*/
struct hlist_head *state_bydst;
struct hlist_head *state_bysrc;
struct hlist_head *state_byspi;
unsigned int state_hmask;
unsigned int state_num;
struct work_struct state_hash_work;
struct hlist_head state_gc_list;
struct work_struct state_gc_work;
wait_queue_head_t km_waitq;
struct list_head policy_all;
struct hlist_head *policy_byidx;
unsigned int policy_idx_hmask;
struct hlist_head policy_inexact[XFRM_POLICY_MAX * 2];
struct xfrm_policy_hash policy_bydst[XFRM_POLICY_MAX * 2];
unsigned int policy_count[XFRM_POLICY_MAX * 2];
struct work_struct policy_hash_work;
struct sock *nlsk;
struct sock *nlsk_stash;
u32 sysctl_aevent_etime;
u32 sysctl_aevent_rseqth;
int sysctl_larval_drop;
u32 sysctl_acq_expires;
#ifdef CONFIG_SYSCTL
struct ctl_table_header *sysctl_hdr;
#endif
};
#endif