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authorAlexey Dobriyan <adobriyan@gmail.com>2008-11-25 17:35:18 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-25 17:35:18 -0800
commit52479b623d3d41df84c499325b6a8c7915413032 (patch)
tree196f303f296b53dc89a05954d9c03226a9b4158b /net/xfrm/xfrm_policy.c
parentcdcbca7c1f1946758cfacb69bc1c7eeaccb11e2d (diff)
downloadkernel-52479b623d3d41df84c499325b6a8c7915413032.tar.gz
netns xfrm: lookup in netns
Pass netns to xfrm_lookup()/__xfrm_lookup(). For that pass netns to flow_cache_lookup() and resolver callback. Take it from socket or netdevice. Stub DECnet to init_net. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm/xfrm_policy.c')
-rw-r--r--net/xfrm/xfrm_policy.c38
1 files changed, 20 insertions, 18 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 6165218fd7c2..7c88a25c7af5 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -940,7 +940,8 @@ static int xfrm_policy_match(struct xfrm_policy *pol, struct flowi *fl,
return ret;
}
-static struct xfrm_policy *xfrm_policy_lookup_bytype(u8 type, struct flowi *fl,
+static struct xfrm_policy *xfrm_policy_lookup_bytype(struct net *net, u8 type,
+ struct flowi *fl,
u16 family, u8 dir)
{
int err;
@@ -956,7 +957,7 @@ static struct xfrm_policy *xfrm_policy_lookup_bytype(u8 type, struct flowi *fl,
return NULL;
read_lock_bh(&xfrm_policy_lock);
- chain = policy_hash_direct(&init_net, daddr, saddr, family, dir);
+ chain = policy_hash_direct(net, daddr, saddr, family, dir);
ret = NULL;
hlist_for_each_entry(pol, entry, chain, bydst) {
err = xfrm_policy_match(pol, fl, type, family, dir);
@@ -973,7 +974,7 @@ static struct xfrm_policy *xfrm_policy_lookup_bytype(u8 type, struct flowi *fl,
break;
}
}
- chain = &init_net.xfrm.policy_inexact[dir];
+ chain = &net->xfrm.policy_inexact[dir];
hlist_for_each_entry(pol, entry, chain, bydst) {
err = xfrm_policy_match(pol, fl, type, family, dir);
if (err) {
@@ -996,14 +997,14 @@ fail:
return ret;
}
-static int xfrm_policy_lookup(struct flowi *fl, u16 family, u8 dir,
- void **objp, atomic_t **obj_refp)
+static int xfrm_policy_lookup(struct net *net, struct flowi *fl, u16 family,
+ u8 dir, void **objp, atomic_t **obj_refp)
{
struct xfrm_policy *pol;
int err = 0;
#ifdef CONFIG_XFRM_SUB_POLICY
- pol = xfrm_policy_lookup_bytype(XFRM_POLICY_TYPE_SUB, fl, family, dir);
+ pol = xfrm_policy_lookup_bytype(net, XFRM_POLICY_TYPE_SUB, fl, family, dir);
if (IS_ERR(pol)) {
err = PTR_ERR(pol);
pol = NULL;
@@ -1011,7 +1012,7 @@ static int xfrm_policy_lookup(struct flowi *fl, u16 family, u8 dir,
if (pol || err)
goto end;
#endif
- pol = xfrm_policy_lookup_bytype(XFRM_POLICY_TYPE_MAIN, fl, family, dir);
+ pol = xfrm_policy_lookup_bytype(net, XFRM_POLICY_TYPE_MAIN, fl, family, dir);
if (IS_ERR(pol)) {
err = PTR_ERR(pol);
pol = NULL;
@@ -1537,7 +1538,7 @@ static int stale_bundle(struct dst_entry *dst);
* At the moment we eat a raw IP route. Mostly to speed up lookups
* on interfaces with disabled IPsec.
*/
-int __xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl,
+int __xfrm_lookup(struct net *net, struct dst_entry **dst_p, struct flowi *fl,
struct sock *sk, int flags)
{
struct xfrm_policy *policy;
@@ -1575,10 +1576,10 @@ restart:
if (!policy) {
/* To accelerate a bit... */
if ((dst_orig->flags & DST_NOXFRM) ||
- !init_net.xfrm.policy_count[XFRM_POLICY_OUT])
+ !net->xfrm.policy_count[XFRM_POLICY_OUT])
goto nopol;
- policy = flow_cache_lookup(fl, dst_orig->ops->family,
+ policy = flow_cache_lookup(net, fl, dst_orig->ops->family,
dir, xfrm_policy_lookup);
err = PTR_ERR(policy);
if (IS_ERR(policy)) {
@@ -1635,7 +1636,8 @@ restart:
#ifdef CONFIG_XFRM_SUB_POLICY
if (pols[0]->type != XFRM_POLICY_TYPE_MAIN) {
- pols[1] = xfrm_policy_lookup_bytype(XFRM_POLICY_TYPE_MAIN,
+ pols[1] = xfrm_policy_lookup_bytype(net,
+ XFRM_POLICY_TYPE_MAIN,
fl, family,
XFRM_POLICY_OUT);
if (pols[1]) {
@@ -1683,11 +1685,11 @@ restart:
if (err == -EAGAIN && (flags & XFRM_LOOKUP_WAIT)) {
DECLARE_WAITQUEUE(wait, current);
- add_wait_queue(&init_net.xfrm.km_waitq, &wait);
+ add_wait_queue(&net->xfrm.km_waitq, &wait);
set_current_state(TASK_INTERRUPTIBLE);
schedule();
set_current_state(TASK_RUNNING);
- remove_wait_queue(&init_net.xfrm.km_waitq, &wait);
+ remove_wait_queue(&net->xfrm.km_waitq, &wait);
nx = xfrm_tmpl_resolve(pols, npols, fl, xfrm, family);
@@ -1781,10 +1783,10 @@ nopol:
}
EXPORT_SYMBOL(__xfrm_lookup);
-int xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl,
+int xfrm_lookup(struct net *net, struct dst_entry **dst_p, struct flowi *fl,
struct sock *sk, int flags)
{
- int err = __xfrm_lookup(dst_p, fl, sk, flags);
+ int err = __xfrm_lookup(net, dst_p, fl, sk, flags);
if (err == -EREMOTE) {
dst_release(*dst_p);
@@ -1936,7 +1938,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
}
if (!pol)
- pol = flow_cache_lookup(&fl, family, fl_dir,
+ pol = flow_cache_lookup(&init_net, &fl, family, fl_dir,
xfrm_policy_lookup);
if (IS_ERR(pol)) {
@@ -1959,7 +1961,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
npols ++;
#ifdef CONFIG_XFRM_SUB_POLICY
if (pols[0]->type != XFRM_POLICY_TYPE_MAIN) {
- pols[1] = xfrm_policy_lookup_bytype(XFRM_POLICY_TYPE_MAIN,
+ pols[1] = xfrm_policy_lookup_bytype(&init_net, XFRM_POLICY_TYPE_MAIN,
&fl, family,
XFRM_POLICY_IN);
if (pols[1]) {
@@ -2049,7 +2051,7 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
return 0;
}
- return xfrm_lookup(&skb->dst, &fl, NULL, 0) == 0;
+ return xfrm_lookup(&init_net, &skb->dst, &fl, NULL, 0) == 0;
}
EXPORT_SYMBOL(__xfrm_route_forward);