提交 0331b1f3 编写于 作者: A Alexey Dobriyan 提交者: David S. Miller

netns xfrm: add struct xfrm_policy::xp_net

Again, to avoid complications with passing netns when not necessary.
Again, ->xp_net is set-once field, once set it never changes.
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 50a30657
......@@ -475,6 +475,9 @@ struct xfrm_policy_walk {
struct xfrm_policy
{
#ifdef CONFIG_NET_NS
struct net *xp_net;
#endif
struct hlist_node bydst;
struct hlist_node byidx;
......@@ -499,6 +502,11 @@ struct xfrm_policy
struct xfrm_tmpl xfrm_vec[XFRM_MAX_DEPTH];
};
static inline struct net *xp_net(struct xfrm_policy *xp)
{
return read_pnet(&xp->xp_net);
}
struct xfrm_kmaddress {
xfrm_address_t local;
xfrm_address_t remote;
......@@ -1425,7 +1433,7 @@ static inline int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb)
}
#endif
struct xfrm_policy *xfrm_policy_alloc(gfp_t gfp);
struct xfrm_policy *xfrm_policy_alloc(struct net *net, gfp_t gfp);
extern void xfrm_policy_walk_init(struct xfrm_policy_walk *walk, u8 type);
extern int xfrm_policy_walk(struct xfrm_policy_walk *walk,
......
......@@ -2174,7 +2174,7 @@ static int pfkey_spdadd(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
if (!pol->sadb_x_policy_dir || pol->sadb_x_policy_dir >= IPSEC_DIR_MAX)
return -EINVAL;
xp = xfrm_policy_alloc(GFP_KERNEL);
xp = xfrm_policy_alloc(&init_net, GFP_KERNEL);
if (xp == NULL)
return -ENOBUFS;
......@@ -3141,7 +3141,7 @@ static struct xfrm_policy *pfkey_compile_policy(struct sock *sk, int opt,
(!pol->sadb_x_policy_dir || pol->sadb_x_policy_dir > IPSEC_DIR_OUTBOUND))
return NULL;
xp = xfrm_policy_alloc(GFP_ATOMIC);
xp = xfrm_policy_alloc(&init_net, GFP_ATOMIC);
if (xp == NULL) {
*dir = -ENOBUFS;
return NULL;
......
......@@ -228,13 +228,14 @@ static void xfrm_policy_timer(unsigned long data)
* SPD calls.
*/
struct xfrm_policy *xfrm_policy_alloc(gfp_t gfp)
struct xfrm_policy *xfrm_policy_alloc(struct net *net, gfp_t gfp)
{
struct xfrm_policy *policy;
policy = kzalloc(sizeof(struct xfrm_policy), gfp);
if (policy) {
write_pnet(&policy->xp_net, net);
INIT_LIST_HEAD(&policy->walk.all);
INIT_HLIST_NODE(&policy->bydst);
INIT_HLIST_NODE(&policy->byidx);
......@@ -1153,7 +1154,7 @@ int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol)
static struct xfrm_policy *clone_policy(struct xfrm_policy *old, int dir)
{
struct xfrm_policy *newp = xfrm_policy_alloc(GFP_ATOMIC);
struct xfrm_policy *newp = xfrm_policy_alloc(xp_net(old), GFP_ATOMIC);
if (newp) {
newp->selector = old->selector;
......
......@@ -1080,7 +1080,7 @@ static void copy_to_user_policy(struct xfrm_policy *xp, struct xfrm_userpolicy_i
static struct xfrm_policy *xfrm_policy_construct(struct xfrm_userpolicy_info *p, struct nlattr **attrs, int *errp)
{
struct xfrm_policy *xp = xfrm_policy_alloc(GFP_KERNEL);
struct xfrm_policy *xp = xfrm_policy_alloc(&init_net, GFP_KERNEL);
int err;
if (!xp) {
......@@ -2291,7 +2291,7 @@ static struct xfrm_policy *xfrm_compile_policy(struct sock *sk, int opt,
if (p->dir > XFRM_POLICY_OUT)
return NULL;
xp = xfrm_policy_alloc(GFP_KERNEL);
xp = xfrm_policy_alloc(&init_net, GFP_KERNEL);
if (xp == NULL) {
*dir = -ENOBUFS;
return NULL;
......
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