[XFRM]: Allow XFRM_ACQ_EXPIRES to be tunable via sysctl.
Signed-off-by: David S. Miller <davem@davemloft.net>
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4738d2fa59
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@ -237,7 +237,6 @@ extern int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
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extern int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
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extern void km_policy_notify(struct xfrm_policy *xp, int dir, struct km_event *c);
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extern void km_state_notify(struct xfrm_state *x, struct km_event *c);
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#define XFRM_ACQ_EXPIRES 30
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struct xfrm_tmpl;
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extern int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol);
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@ -25,6 +25,7 @@ extern int sysctl_core_destroy_delay;
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extern u32 sysctl_xfrm_aevent_etime;
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extern u32 sysctl_xfrm_aevent_rseqth;
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extern int sysctl_xfrm_larval_drop;
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extern u32 sysctl_xfrm_acq_expires;
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#endif
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ctl_table core_table[] = {
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@ -127,6 +128,14 @@ ctl_table core_table[] = {
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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{
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.ctl_name = CTL_UNNUMBERED,
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.procname = "xfrm_acq_expires",
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.data = &sysctl_xfrm_acq_expires,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = &proc_dointvec
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},
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#endif /* CONFIG_XFRM */
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#endif /* CONFIG_NET */
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{
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@ -21,18 +21,21 @@
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#include <linux/cache.h>
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#include <asm/uaccess.h>
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#include <linux/audit.h>
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#include <linux/cache.h>
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#include "xfrm_hash.h"
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struct sock *xfrm_nl;
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EXPORT_SYMBOL(xfrm_nl);
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u32 sysctl_xfrm_aevent_etime = XFRM_AE_ETIME;
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u32 sysctl_xfrm_aevent_etime __read_mostly = XFRM_AE_ETIME;
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EXPORT_SYMBOL(sysctl_xfrm_aevent_etime);
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u32 sysctl_xfrm_aevent_rseqth = XFRM_AE_SEQT_SIZE;
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u32 sysctl_xfrm_aevent_rseqth __read_mostly = XFRM_AE_SEQT_SIZE;
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EXPORT_SYMBOL(sysctl_xfrm_aevent_rseqth);
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u32 sysctl_xfrm_acq_expires __read_mostly = 30;
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/* Each xfrm_state may be linked to two tables:
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1. Hash table by (spi,daddr,ah/esp) to find SA by SPI. (input,ctl)
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@ -622,8 +625,8 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
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h = xfrm_spi_hash(&x->id.daddr, x->id.spi, x->id.proto, family);
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hlist_add_head(&x->byspi, xfrm_state_byspi+h);
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}
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x->lft.hard_add_expires_seconds = XFRM_ACQ_EXPIRES;
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x->timer.expires = jiffies + XFRM_ACQ_EXPIRES*HZ;
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x->lft.hard_add_expires_seconds = sysctl_xfrm_acq_expires;
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x->timer.expires = jiffies + sysctl_xfrm_acq_expires*HZ;
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add_timer(&x->timer);
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xfrm_state_num++;
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xfrm_hash_grow_check(x->bydst.next != NULL);
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@ -772,9 +775,9 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re
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x->props.family = family;
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x->props.mode = mode;
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x->props.reqid = reqid;
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x->lft.hard_add_expires_seconds = XFRM_ACQ_EXPIRES;
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x->lft.hard_add_expires_seconds = sysctl_xfrm_acq_expires;
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xfrm_state_hold(x);
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x->timer.expires = jiffies + XFRM_ACQ_EXPIRES*HZ;
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x->timer.expires = jiffies + sysctl_xfrm_acq_expires*HZ;
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add_timer(&x->timer);
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hlist_add_head(&x->bydst, xfrm_state_bydst+h);
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h = xfrm_src_hash(daddr, saddr, family);
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