[XFRM] netlink: Use nlattr instead of rtattr
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 7319c7f..e46bcf0 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -38,16 +38,16 @@
return sizeof(*alg) + ((alg->alg_key_len + 7) / 8);
}
-static int verify_one_alg(struct rtattr **attrs, enum xfrm_attr_type_t type)
+static int verify_one_alg(struct nlattr **attrs, enum xfrm_attr_type_t type)
{
- struct rtattr *rt = attrs[type];
+ struct nlattr *rt = attrs[type];
struct xfrm_algo *algp;
if (!rt)
return 0;
- algp = RTA_DATA(rt);
- if (RTA_PAYLOAD(rt) < alg_len(algp))
+ algp = nla_data(rt);
+ if (nla_len(rt) < alg_len(algp))
return -EINVAL;
switch (type) {
@@ -75,24 +75,24 @@
return 0;
}
-static void verify_one_addr(struct rtattr **attrs, enum xfrm_attr_type_t type,
+static void verify_one_addr(struct nlattr **attrs, enum xfrm_attr_type_t type,
xfrm_address_t **addrp)
{
- struct rtattr *rt = attrs[type];
+ struct nlattr *rt = attrs[type];
if (rt && addrp)
- *addrp = RTA_DATA(rt);
+ *addrp = nla_data(rt);
}
-static inline int verify_sec_ctx_len(struct rtattr **attrs)
+static inline int verify_sec_ctx_len(struct nlattr **attrs)
{
- struct rtattr *rt = attrs[XFRMA_SEC_CTX];
+ struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_user_sec_ctx *uctx;
if (!rt)
return 0;
- uctx = RTA_DATA(rt);
+ uctx = nla_data(rt);
if (uctx->len != (sizeof(struct xfrm_user_sec_ctx) + uctx->ctx_len))
return -EINVAL;
@@ -101,7 +101,7 @@
static int verify_newsa_info(struct xfrm_usersa_info *p,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
int err;
@@ -191,16 +191,15 @@
static int attach_one_algo(struct xfrm_algo **algpp, u8 *props,
struct xfrm_algo_desc *(*get_byname)(char *, int),
- struct rtattr *u_arg)
+ struct nlattr *rta)
{
- struct rtattr *rta = u_arg;
struct xfrm_algo *p, *ualg;
struct xfrm_algo_desc *algo;
if (!rta)
return 0;
- ualg = RTA_DATA(rta);
+ ualg = nla_data(rta);
algo = get_byname(ualg->alg_name, 1);
if (!algo)
@@ -216,15 +215,14 @@
return 0;
}
-static int attach_encap_tmpl(struct xfrm_encap_tmpl **encapp, struct rtattr *u_arg)
+static int attach_encap_tmpl(struct xfrm_encap_tmpl **encapp, struct nlattr *rta)
{
- struct rtattr *rta = u_arg;
struct xfrm_encap_tmpl *p, *uencap;
if (!rta)
return 0;
- uencap = RTA_DATA(rta);
+ uencap = nla_data(rta);
p = kmemdup(uencap, sizeof(*p), GFP_KERNEL);
if (!p)
return -ENOMEM;
@@ -245,26 +243,25 @@
return len;
}
-static int attach_sec_ctx(struct xfrm_state *x, struct rtattr *u_arg)
+static int attach_sec_ctx(struct xfrm_state *x, struct nlattr *u_arg)
{
struct xfrm_user_sec_ctx *uctx;
if (!u_arg)
return 0;
- uctx = RTA_DATA(u_arg);
+ uctx = nla_data(u_arg);
return security_xfrm_state_alloc(x, uctx);
}
-static int attach_one_addr(xfrm_address_t **addrpp, struct rtattr *u_arg)
+static int attach_one_addr(xfrm_address_t **addrpp, struct nlattr *rta)
{
- struct rtattr *rta = u_arg;
xfrm_address_t *p, *uaddrp;
if (!rta)
return 0;
- uaddrp = RTA_DATA(rta);
+ uaddrp = nla_data(rta);
p = kmemdup(uaddrp, sizeof(*p), GFP_KERNEL);
if (!p)
return -ENOMEM;
@@ -298,23 +295,23 @@
* somehow made shareable and move it to xfrm_state.c - JHS
*
*/
-static void xfrm_update_ae_params(struct xfrm_state *x, struct rtattr **attrs)
+static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs)
{
- struct rtattr *rp = attrs[XFRMA_REPLAY_VAL];
- struct rtattr *lt = attrs[XFRMA_LTIME_VAL];
- struct rtattr *et = attrs[XFRMA_ETIMER_THRESH];
- struct rtattr *rt = attrs[XFRMA_REPLAY_THRESH];
+ struct nlattr *rp = attrs[XFRMA_REPLAY_VAL];
+ struct nlattr *lt = attrs[XFRMA_LTIME_VAL];
+ struct nlattr *et = attrs[XFRMA_ETIMER_THRESH];
+ struct nlattr *rt = attrs[XFRMA_REPLAY_THRESH];
if (rp) {
struct xfrm_replay_state *replay;
- replay = RTA_DATA(rp);
+ replay = nla_data(rp);
memcpy(&x->replay, replay, sizeof(*replay));
memcpy(&x->preplay, replay, sizeof(*replay));
}
if (lt) {
struct xfrm_lifetime_cur *ltime;
- ltime = RTA_DATA(lt);
+ ltime = nla_data(lt);
x->curlft.bytes = ltime->bytes;
x->curlft.packets = ltime->packets;
x->curlft.add_time = ltime->add_time;
@@ -322,14 +319,14 @@
}
if (et)
- x->replay_maxage = *(u32*)RTA_DATA(et);
+ x->replay_maxage = nla_get_u32(et);
if (rt)
- x->replay_maxdiff = *(u32*)RTA_DATA(rt);
+ x->replay_maxdiff = nla_get_u32(rt);
}
static struct xfrm_state *xfrm_state_construct(struct xfrm_usersa_info *p,
- struct rtattr **attrs,
+ struct nlattr **attrs,
int *errp)
{
struct xfrm_state *x = xfrm_state_alloc();
@@ -373,7 +370,7 @@
/* override default values from above */
- xfrm_update_ae_params(x, (struct rtattr **)attrs);
+ xfrm_update_ae_params(x, attrs);
return x;
@@ -386,7 +383,7 @@
}
static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_usersa_info *p = nlmsg_data(nlh);
struct xfrm_state *x;
@@ -427,7 +424,7 @@
}
static struct xfrm_state *xfrm_user_state_lookup(struct xfrm_usersa_id *p,
- struct rtattr **attrs,
+ struct nlattr **attrs,
int *errp)
{
struct xfrm_state *x = NULL;
@@ -457,7 +454,7 @@
}
static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_state *x;
int err = -ESRCH;
@@ -669,7 +666,7 @@
}
static int xfrm_get_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct sk_buff *r_skb;
u32 *flags = nlmsg_data(nlh);
@@ -722,7 +719,7 @@
}
static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct sk_buff *r_skb;
u32 *flags = nlmsg_data(nlh);
@@ -740,7 +737,7 @@
}
static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_usersa_id *p = nlmsg_data(nlh);
struct xfrm_state *x;
@@ -786,7 +783,7 @@
}
static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_state *x;
struct xfrm_userspi_info *p;
@@ -915,15 +912,15 @@
return verify_policy_dir(p->dir);
}
-static int copy_from_user_sec_ctx(struct xfrm_policy *pol, struct rtattr **attrs)
+static int copy_from_user_sec_ctx(struct xfrm_policy *pol, struct nlattr **attrs)
{
- struct rtattr *rt = attrs[XFRMA_SEC_CTX];
+ struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_user_sec_ctx *uctx;
if (!rt)
return 0;
- uctx = RTA_DATA(rt);
+ uctx = nla_data(rt);
return security_xfrm_policy_alloc(pol, uctx);
}
@@ -983,35 +980,35 @@
return 0;
}
-static int copy_from_user_tmpl(struct xfrm_policy *pol, struct rtattr **attrs)
+static int copy_from_user_tmpl(struct xfrm_policy *pol, struct nlattr **attrs)
{
- struct rtattr *rt = attrs[XFRMA_TMPL];
+ struct nlattr *rt = attrs[XFRMA_TMPL];
if (!rt) {
pol->xfrm_nr = 0;
} else {
- struct xfrm_user_tmpl *utmpl = RTA_DATA(rt);
- int nr = (rt->rta_len - sizeof(*rt)) / sizeof(*utmpl);
+ struct xfrm_user_tmpl *utmpl = nla_data(rt);
+ int nr = nla_len(rt) / sizeof(*utmpl);
int err;
err = validate_tmpl(nr, utmpl, pol->family);
if (err)
return err;
- copy_templates(pol, RTA_DATA(rt), nr);
+ copy_templates(pol, utmpl, nr);
}
return 0;
}
-static int copy_from_user_policy_type(u8 *tp, struct rtattr **attrs)
+static int copy_from_user_policy_type(u8 *tp, struct nlattr **attrs)
{
- struct rtattr *rt = attrs[XFRMA_POLICY_TYPE];
+ struct nlattr *rt = attrs[XFRMA_POLICY_TYPE];
struct xfrm_userpolicy_type *upt;
u8 type = XFRM_POLICY_TYPE_MAIN;
int err;
if (rt) {
- upt = RTA_DATA(rt);
+ upt = nla_data(rt);
type = upt->type;
}
@@ -1049,7 +1046,7 @@
p->share = XFRM_SHARE_ANY; /* XXX xp->share */
}
-static struct xfrm_policy *xfrm_policy_construct(struct xfrm_userpolicy_info *p, struct rtattr **attrs, int *errp)
+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);
int err;
@@ -1078,7 +1075,7 @@
}
static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_userpolicy_info *p = nlmsg_data(nlh);
struct xfrm_policy *xp;
@@ -1271,7 +1268,7 @@
}
static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_policy *xp;
struct xfrm_userpolicy_id *p;
@@ -1294,7 +1291,7 @@
if (p->index)
xp = xfrm_policy_byid(type, p->dir, p->index, delete, &err);
else {
- struct rtattr *rt = attrs[XFRMA_SEC_CTX];
+ struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_policy tmp;
err = verify_sec_ctx_len(attrs);
@@ -1303,7 +1300,7 @@
memset(&tmp, 0, sizeof(struct xfrm_policy));
if (rt) {
- struct xfrm_user_sec_ctx *uctx = RTA_DATA(rt);
+ struct xfrm_user_sec_ctx *uctx = nla_data(rt);
if ((err = security_xfrm_policy_alloc(&tmp, uctx)))
return err;
@@ -1345,7 +1342,7 @@
}
static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct km_event c;
struct xfrm_usersa_flush *p = nlmsg_data(nlh);
@@ -1411,7 +1408,7 @@
}
static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_state *x;
struct sk_buff *r_skb;
@@ -1449,14 +1446,14 @@
}
static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_state *x;
struct km_event c;
int err = - EINVAL;
struct xfrm_aevent_id *p = nlmsg_data(nlh);
- struct rtattr *rp = attrs[XFRMA_REPLAY_VAL];
- struct rtattr *lt = attrs[XFRMA_LTIME_VAL];
+ struct nlattr *rp = attrs[XFRMA_REPLAY_VAL];
+ struct nlattr *lt = attrs[XFRMA_LTIME_VAL];
if (!lt && !rp)
return err;
@@ -1488,7 +1485,7 @@
}
static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct km_event c;
u8 type = XFRM_POLICY_TYPE_MAIN;
@@ -1513,7 +1510,7 @@
}
static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_policy *xp;
struct xfrm_user_polexpire *up = nlmsg_data(nlh);
@@ -1528,7 +1525,7 @@
if (p->index)
xp = xfrm_policy_byid(type, p->dir, p->index, 0, &err);
else {
- struct rtattr *rt = attrs[XFRMA_SEC_CTX];
+ struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_policy tmp;
err = verify_sec_ctx_len(attrs);
@@ -1537,7 +1534,7 @@
memset(&tmp, 0, sizeof(struct xfrm_policy));
if (rt) {
- struct xfrm_user_sec_ctx *uctx = RTA_DATA(rt);
+ struct xfrm_user_sec_ctx *uctx = nla_data(rt);
if ((err = security_xfrm_policy_alloc(&tmp, uctx)))
return err;
@@ -1574,7 +1571,7 @@
}
static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_state *x;
int err;
@@ -1606,12 +1603,12 @@
}
static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_policy *xp;
struct xfrm_user_tmpl *ut;
int i;
- struct rtattr *rt = attrs[XFRMA_TMPL];
+ struct nlattr *rt = attrs[XFRMA_TMPL];
struct xfrm_user_acquire *ua = nlmsg_data(nlh);
struct xfrm_state *x = xfrm_state_alloc();
@@ -1628,7 +1625,7 @@
}
/* build an XP */
- xp = xfrm_policy_construct(&ua->policy, (struct rtattr **) attrs, &err);
+ xp = xfrm_policy_construct(&ua->policy, attrs, &err);
if (!xp) {
kfree(x);
return err;
@@ -1638,7 +1635,7 @@
memcpy(&x->props.saddr, &ua->saddr, sizeof(ua->saddr));
memcpy(&x->sel, &ua->sel, sizeof(ua->sel));
- ut = RTA_DATA(rt);
+ ut = nla_data(rt);
/* extract the templates and for each call km_key */
for (i = 0; i < xp->xfrm_nr; i++, ut++) {
struct xfrm_tmpl *t = &xp->xfrm_vec[i];
@@ -1661,14 +1658,14 @@
#ifdef CONFIG_XFRM_MIGRATE
static int copy_from_user_migrate(struct xfrm_migrate *ma,
- struct rtattr **attrs, int *num)
+ struct nlattr **attrs, int *num)
{
- struct rtattr *rt = attrs[XFRMA_MIGRATE];
+ struct nlattr *rt = attrs[XFRMA_MIGRATE];
struct xfrm_user_migrate *um;
int i, num_migrate;
- um = RTA_DATA(rt);
- num_migrate = (rt->rta_len - sizeof(*rt)) / sizeof(*um);
+ um = nla_data(rt);
+ num_migrate = nla_len(rt) / sizeof(*um);
if (num_migrate <= 0 || num_migrate > XFRM_MAX_DEPTH)
return -EINVAL;
@@ -1692,7 +1689,7 @@
}
static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
struct xfrm_userpolicy_id *pi = nlmsg_data(nlh);
struct xfrm_migrate m[XFRM_MAX_DEPTH];
@@ -1703,12 +1700,12 @@
if (attrs[XFRMA_MIGRATE] == NULL)
return -EINVAL;
- err = copy_from_user_policy_type(&type, (struct rtattr **)attrs);
+ err = copy_from_user_policy_type(&type, attrs);
if (err)
return err;
err = copy_from_user_migrate((struct xfrm_migrate *)m,
- (struct rtattr **)attrs, &n);
+ attrs, &n);
if (err)
return err;
@@ -1721,7 +1718,7 @@
}
#else
static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
- struct rtattr **attrs)
+ struct nlattr **attrs)
{
return -ENOPROTOOPT;
}
@@ -1854,7 +1851,7 @@
};
static struct xfrm_link {
- int (*doit)(struct sk_buff *, struct nlmsghdr *, struct rtattr **);
+ int (*doit)(struct sk_buff *, struct nlmsghdr *, struct nlattr **);
int (*dump)(struct sk_buff *, struct netlink_callback *);
} xfrm_dispatch[XFRM_NR_MSGTYPES] = {
[XFRM_MSG_NEWSA - XFRM_MSG_BASE] = { .doit = xfrm_add_sa },
@@ -1914,7 +1911,7 @@
if (link->doit == NULL)
return -EINVAL;
- return link->doit(skb, nlh, (struct rtattr **) attrs);
+ return link->doit(skb, nlh, attrs);
}
static void xfrm_netlink_rcv(struct sock *sk, int len)