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xfrm: Using the right namespace to migrate key info

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because the home agent could surely be run on a different
net namespace other than init_net. The original behavior
could lead into inconsistent of key info.

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Fan Du
2013-11-07 17:47:49 +08:00
committed by Steffen Klassert
parent e682adf021
commit 8d549c4f5d
4 changed files with 10 additions and 8 deletions
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10
net/xfrm/xfrm_policy.c
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@@ -3076,14 +3076,14 @@ static bool xfrm_migrate_selector_match(const struct xfrm_selector *sel_cmp,
}
static struct xfrm_policy * xfrm_migrate_policy_find(const struct xfrm_selector *sel,
u8 dir, u8 type)
u8 dir, u8 type, struct net *net)
{
struct xfrm_policy *pol, *ret = NULL;
struct hlist_head *chain;
u32 priority = ~0U;
read_lock_bh(&xfrm_policy_lock);
chain = policy_hash_direct(&init_net, &sel->daddr, &sel->saddr, sel->family, dir);
chain = policy_hash_direct(net, &sel->daddr, &sel->saddr, sel->family, dir);
hlist_for_each_entry(pol, chain, bydst) {
if (xfrm_migrate_selector_match(sel, &pol->selector) &&
pol->type == type) {
@@ -3092,7 +3092,7 @@ static struct xfrm_policy * xfrm_migrate_policy_find(const struct xfrm_selector
break;
}
}
chain = &init_net.xfrm.policy_inexact[dir];
chain = &net->xfrm.policy_inexact[dir];
hlist_for_each_entry(pol, chain, bydst) {
if (xfrm_migrate_selector_match(sel, &pol->selector) &&
pol->type == type &&
@@ -3216,7 +3216,7 @@ static int xfrm_migrate_check(const struct xfrm_migrate *m, int num_migrate)
int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
struct xfrm_migrate *m, int num_migrate,
struct xfrm_kmaddress *k)
struct xfrm_kmaddress *k, struct net *net)
{
int i, err, nx_cur = 0, nx_new = 0;
struct xfrm_policy *pol = NULL;
@@ -3229,7 +3229,7 @@ int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
goto out;
/* Stage 1 - find policy */
if ((pol = xfrm_migrate_policy_find(sel, dir, type)) == NULL) {
if ((pol = xfrm_migrate_policy_find(sel, dir, type, net)) == NULL) {
err = -ENOENT;
goto out;
}