From 8b18f8eaf9207d53ba3e69f2b98d7290f4dec227 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 25 Nov 2008 17:23:26 -0800 Subject: netns xfrm: per-netns inexact policies Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- include/net/netns/xfrm.h | 2 ++ net/xfrm/xfrm_policy.c | 20 ++++++++++++-------- 2 files changed, 14 insertions(+), 8 deletions(-) diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h index 42dc318fe3de..c7568315f16c 100644 --- a/include/net/netns/xfrm.h +++ b/include/net/netns/xfrm.h @@ -4,6 +4,7 @@ #include #include #include +#include struct netns_xfrm { struct list_head state_all; @@ -29,6 +30,7 @@ struct netns_xfrm { struct list_head policy_all; struct hlist_head *policy_byidx; unsigned int policy_idx_hmask; + struct hlist_head policy_inexact[XFRM_POLICY_MAX * 2]; }; #endif diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 9e37a44f148e..ba4e95b8e24e 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -327,7 +327,6 @@ struct xfrm_policy_hash { unsigned int hmask; }; -static struct hlist_head xfrm_policy_inexact[XFRM_POLICY_MAX*2]; static struct xfrm_policy_hash xfrm_policy_bydst[XFRM_POLICY_MAX*2] __read_mostly; static unsigned int xfrm_policy_hashmax __read_mostly = 1 * 1024 * 1024; @@ -342,7 +341,7 @@ static struct hlist_head *policy_hash_bysel(struct xfrm_selector *sel, unsigned unsigned int hash = __sel_hash(sel, family, hmask); return (hash == hmask + 1 ? - &xfrm_policy_inexact[dir] : + &init_net.xfrm.policy_inexact[dir] : xfrm_policy_bydst[dir].table + hash); } @@ -752,7 +751,7 @@ xfrm_policy_flush_secctx_check(u8 type, struct xfrm_audit *audit_info) int i; hlist_for_each_entry(pol, entry, - &xfrm_policy_inexact[dir], bydst) { + &init_net.xfrm.policy_inexact[dir], bydst) { if (pol->type != type) continue; err = security_xfrm_policy_delete(pol->security); @@ -810,7 +809,7 @@ int xfrm_policy_flush(u8 type, struct xfrm_audit *audit_info) killed = 0; again1: hlist_for_each_entry(pol, entry, - &xfrm_policy_inexact[dir], bydst) { + &init_net.xfrm.policy_inexact[dir], bydst) { if (pol->type != type) continue; hlist_del(&pol->bydst); @@ -983,7 +982,7 @@ static struct xfrm_policy *xfrm_policy_lookup_bytype(u8 type, struct flowi *fl, break; } } - chain = &xfrm_policy_inexact[dir]; + chain = &init_net.xfrm.policy_inexact[dir]; hlist_for_each_entry(pol, entry, chain, bydst) { err = xfrm_policy_match(pol, fl, type, family, dir); if (err) { @@ -2152,7 +2151,7 @@ static void xfrm_prune_bundles(int (*func)(struct dst_entry *)) int i; hlist_for_each_entry(pol, entry, - &xfrm_policy_inexact[dir], bydst) + &init_net.xfrm.policy_inexact[dir], bydst) prune_one_bundle(pol, func, &gc_list); table = xfrm_policy_bydst[dir].table; @@ -2414,7 +2413,7 @@ static int __net_init xfrm_policy_init(struct net *net) for (dir = 0; dir < XFRM_POLICY_MAX * 2; dir++) { struct xfrm_policy_hash *htab; - INIT_HLIST_HEAD(&xfrm_policy_inexact[dir]); + INIT_HLIST_HEAD(&net->xfrm.policy_inexact[dir]); htab = &xfrm_policy_bydst[dir]; htab->table = xfrm_hash_alloc(sz); @@ -2435,9 +2434,14 @@ out_byidx: static void xfrm_policy_fini(struct net *net) { unsigned int sz; + int dir; WARN_ON(!list_empty(&net->xfrm.policy_all)); + for (dir = 0; dir < XFRM_POLICY_MAX * 2; dir++) { + WARN_ON(!hlist_empty(&net->xfrm.policy_inexact[dir])); + } + sz = (net->xfrm.policy_idx_hmask + 1) * sizeof(struct hlist_head); WARN_ON(!hlist_empty(net->xfrm.policy_byidx)); xfrm_hash_free(net->xfrm.policy_byidx, sz); @@ -2590,7 +2594,7 @@ static struct xfrm_policy * xfrm_migrate_policy_find(struct xfrm_selector *sel, break; } } - chain = &xfrm_policy_inexact[dir]; + chain = &init_net.xfrm.policy_inexact[dir]; hlist_for_each_entry(pol, entry, chain, bydst) { if (xfrm_migrate_selector_match(sel, &pol->selector) && pol->type == type && -- cgit v1.2.2