Skip to content

Commit

Permalink
[XFRM_USER]: avoid pointless void ** casts
Browse files Browse the repository at this point in the history 
All ->doit handlers want a struct rtattr **, so pass down the right
type.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
  • Loading branch information
Christoph Hellwig authored and David S. Miller committed Jan 4, 2007
1 parent 9c2440b commit 22e7005
Showing 1 changed file with 42 additions and 31 deletions.
73 changes: 42 additions & 31 deletions net/xfrm/xfrm_user.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -434,18 +434,19 @@ static struct xfrm_state *xfrm_state_construct(struct xfrm_usersa_info *p,
return NULL;
}

static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_usersa_info *p = NLMSG_DATA(nlh);
struct xfrm_state *x;
int err;
struct km_event c;

err = verify_newsa_info(p, (struct rtattr **)xfrma);
err = verify_newsa_info(p, xfrma);
if (err)
return err;

x = xfrm_state_construct(p, (struct rtattr **)xfrma, &err);
x = xfrm_state_construct(p, xfrma, &err);
if (!x)
return err;

Expand Down Expand Up @@ -507,14 +508,15 @@ static struct xfrm_state *xfrm_user_state_lookup(struct xfrm_usersa_id *p,
return x;
}

static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_state *x;
int err = -ESRCH;
struct km_event c;
struct xfrm_usersa_id *p = NLMSG_DATA(nlh);

x = xfrm_user_state_lookup(p, (struct rtattr **)xfrma, &err);
x = xfrm_user_state_lookup(p, xfrma, &err);
if (x == NULL)
return err;

Expand Down Expand Up @@ -672,14 +674,15 @@ static struct sk_buff *xfrm_state_netlink(struct sk_buff *in_skb,
return skb;
}

static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_usersa_id *p = NLMSG_DATA(nlh);
struct xfrm_state *x;
struct sk_buff *resp_skb;
int err = -ESRCH;

x = xfrm_user_state_lookup(p, (struct rtattr **)xfrma, &err);
x = xfrm_user_state_lookup(p, xfrma, &err);
if (x == NULL)
goto out_noput;

Expand Down Expand Up @@ -718,7 +721,8 @@ static int verify_userspi_info(struct xfrm_userspi_info *p)
return 0;
}

static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_state *x;
struct xfrm_userspi_info *p;
Expand Down Expand Up @@ -1013,7 +1017,8 @@ static struct xfrm_policy *xfrm_policy_construct(struct xfrm_userpolicy_info *p,
return NULL;
}

static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_userpolicy_info *p = NLMSG_DATA(nlh);
struct xfrm_policy *xp;
Expand All @@ -1024,11 +1029,11 @@ static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
err = verify_newpolicy_info(p);
if (err)
return err;
err = verify_sec_ctx_len((struct rtattr **)xfrma);
err = verify_sec_ctx_len(xfrma);
if (err)
return err;

xp = xfrm_policy_construct(p, (struct rtattr **)xfrma, &err);
xp = xfrm_policy_construct(p, xfrma, &err);
if (!xp)
return err;

Expand Down Expand Up @@ -1227,7 +1232,8 @@ static struct sk_buff *xfrm_policy_netlink(struct sk_buff *in_skb,
return skb;
}

static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_policy *xp;
struct xfrm_userpolicy_id *p;
Expand All @@ -1239,7 +1245,7 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
p = NLMSG_DATA(nlh);
delete = nlh->nlmsg_type == XFRM_MSG_DELPOLICY;

err = copy_from_user_policy_type(&type, (struct rtattr **)xfrma);
err = copy_from_user_policy_type(&type, xfrma);
if (err)
return err;

Expand All @@ -1250,11 +1256,10 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
if (p->index)
xp = xfrm_policy_byid(type, p->dir, p->index, delete);
else {
struct rtattr **rtattrs = (struct rtattr **)xfrma;
struct rtattr *rt = rtattrs[XFRMA_SEC_CTX-1];
struct rtattr *rt = xfrma[XFRMA_SEC_CTX-1];
struct xfrm_policy tmp;

err = verify_sec_ctx_len(rtattrs);
err = verify_sec_ctx_len(xfrma);
if (err)
return err;

Expand Down Expand Up @@ -1302,7 +1307,8 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
return err;
}

static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct km_event c;
struct xfrm_usersa_flush *p = NLMSG_DATA(nlh);
Expand Down Expand Up @@ -1367,7 +1373,8 @@ static int build_aevent(struct sk_buff *skb, struct xfrm_state *x, struct km_eve
return -1;
}

static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_state *x;
struct sk_buff *r_skb;
Expand Down Expand Up @@ -1415,7 +1422,8 @@ static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
return err;
}

static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_state *x;
struct km_event c;
Expand All @@ -1439,7 +1447,7 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
goto out;

spin_lock_bh(&x->lock);
err = xfrm_update_ae_params(x,(struct rtattr **)xfrma);
err = xfrm_update_ae_params(x, xfrma);
spin_unlock_bh(&x->lock);
if (err < 0)
goto out;
Expand All @@ -1455,14 +1463,15 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
return err;
}

static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct km_event c;
u8 type = XFRM_POLICY_TYPE_MAIN;
int err;
struct xfrm_audit audit_info;

err = copy_from_user_policy_type(&type, (struct rtattr **)xfrma);
err = copy_from_user_policy_type(&type, xfrma);
if (err)
return err;

Expand All @@ -1477,26 +1486,26 @@ static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **x
return 0;
}

static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_policy *xp;
struct xfrm_user_polexpire *up = NLMSG_DATA(nlh);
struct xfrm_userpolicy_info *p = &up->pol;
u8 type = XFRM_POLICY_TYPE_MAIN;
int err = -ENOENT;

err = copy_from_user_policy_type(&type, (struct rtattr **)xfrma);
err = copy_from_user_policy_type(&type, xfrma);
if (err)
return err;

if (p->index)
xp = xfrm_policy_byid(type, p->dir, p->index, 0);
else {
struct rtattr **rtattrs = (struct rtattr **)xfrma;
struct rtattr *rt = rtattrs[XFRMA_SEC_CTX-1];
struct rtattr *rt = xfrma[XFRMA_SEC_CTX-1];
struct xfrm_policy tmp;

err = verify_sec_ctx_len(rtattrs);
err = verify_sec_ctx_len(xfrma);
if (err)
return err;

Expand Down Expand Up @@ -1537,7 +1546,8 @@ static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh, void *
return err;
}

static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_state *x;
int err;
Expand Down Expand Up @@ -1568,7 +1578,8 @@ static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh, void **
return err;
}

static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
struct xfrm_policy *xp;
struct xfrm_user_tmpl *ut;
Expand Down Expand Up @@ -1647,7 +1658,7 @@ static const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
#undef XMSGSIZE

static struct xfrm_link {
int (*doit)(struct sk_buff *, struct nlmsghdr *, void **);
int (*doit)(struct sk_buff *, struct nlmsghdr *, struct rtattr **);
int (*dump)(struct sk_buff *, struct netlink_callback *);
} xfrm_dispatch[XFRM_NR_MSGTYPES] = {
[XFRM_MSG_NEWSA - XFRM_MSG_BASE] = { .doit = xfrm_add_sa },
Expand Down Expand Up @@ -1735,7 +1746,7 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *err

if (link->doit == NULL)
goto err_einval;
*errp = link->doit(skb, nlh, (void **) &xfrma);
*errp = link->doit(skb, nlh, xfrma);

return *errp;

Expand Down

0 comments on commit 22e7005

Please sign in to comment.