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xfrm: remove redundant parameter "int dir" in struct xfrm_mgr.acquire

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Sematically speaking, xfrm_mgr.acquire is called when kernel intends to ask
user space IKE daemon to negotiate SAs with peers. IOW the direction will
*always* be XFRM_POLICY_OUT, so remove int dir for clarity.

Change-Id: Id4df779e818c5b6f5eccb9bf8250c17eb729f101
Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Fan Du 2012-08-15 10:13:47 +08:00 committed by surblazer
parent adff1877a7
commit c9f76626c3
3 changed files with 7 additions and 8 deletions
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2
include/net/xfrm.h
View file

@ -582,7 +582,7 @@ struct xfrm_mgr {
struct list_head list;
char *id;
int (*notify)(struct xfrm_state *x, const struct km_event *c);
int (*acquire)(struct xfrm_state *x, struct xfrm_tmpl *, struct xfrm_policy *xp, int dir);
int (*acquire)(struct xfrm_state *x, struct xfrm_tmpl *, struct xfrm_policy *xp);
struct xfrm_policy *(*compile_policy)(struct sock *sk, int opt, u8 *data, int len, int *dir);
int (*new_mapping)(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport);
int (*notify_policy)(struct xfrm_policy *x, int dir, const struct km_event *c);

4
net/key/af_key.c
View file

@ -3055,7 +3055,7 @@ static u32 get_acqseq(void)
return res;
}
static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *xp, int dir)
static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *xp)
{
struct sk_buff *skb;
struct sadb_msg *hdr;
@ -3136,7 +3136,7 @@ static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct
pol->sadb_x_policy_len = sizeof(struct sadb_x_policy)/sizeof(uint64_t);
pol->sadb_x_policy_exttype = SADB_X_EXT_POLICY;
pol->sadb_x_policy_type = IPSEC_POLICY_IPSEC;
pol->sadb_x_policy_dir = dir+1;
pol->sadb_x_policy_dir = XFRM_POLICY_OUT + 1;
pol->sadb_x_policy_reserved = 0;
pol->sadb_x_policy_id = xp->index;
pol->sadb_x_policy_priority = xp->priority;

9
net/xfrm/xfrm_user.c
View file

@ -2616,8 +2616,7 @@ static inline size_t xfrm_acquire_msgsize(struct xfrm_state *x,
}
static int build_acquire(struct sk_buff *skb, struct xfrm_state *x,
struct xfrm_tmpl *xt, struct xfrm_policy *xp,
int dir)
struct xfrm_tmpl *xt, struct xfrm_policy *xp)
{
__u32 seq = xfrm_get_acqseq();
struct xfrm_user_acquire *ua;
@ -2632,7 +2631,7 @@ static int build_acquire(struct sk_buff *skb, struct xfrm_state *x,
memcpy(&ua->id, &x->id, sizeof(ua->id));
memcpy(&ua->saddr, &x->props.saddr, sizeof(ua->saddr));
memcpy(&ua->sel, &x->sel, sizeof(ua->sel));
copy_to_user_policy(xp, &ua->policy, dir);
copy_to_user_policy(xp, &ua->policy, XFRM_POLICY_OUT);
ua->aalgos = xt->aalgos;
ua->ealgos = xt->ealgos;
ua->calgos = xt->calgos;
@ -2654,7 +2653,7 @@ static int build_acquire(struct sk_buff *skb, struct xfrm_state *x,
}
static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt,
struct xfrm_policy *xp, int dir)
struct xfrm_policy *xp)
{
struct net *net = xs_net(x);
struct sk_buff *skb;
@ -2663,7 +2662,7 @@ static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt,
if (skb == NULL)
return -ENOMEM;
if (build_acquire(skb, x, xt, xp, dir) < 0)
if (build_acquire(skb, x, xt, xp) < 0)
BUG();
return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_ACQUIRE, GFP_ATOMIC);