#include <linux/types.h>
#include <net/netlink.h>
-static u16 nla_attr_minlen[NLA_TYPE_MAX+1] __read_mostly = {
+static const u16 nla_attr_minlen[NLA_TYPE_MAX+1] = {
[NLA_U8] = sizeof(u8),
[NLA_U16] = sizeof(u16),
[NLA_U32] = sizeof(u32),
[NLA_NESTED] = NLA_HDRLEN,
};
-static int validate_nla(struct nlattr *nla, int maxtype,
+static int validate_nla(const struct nlattr *nla, int maxtype,
const struct nla_policy *policy)
{
const struct nla_policy *pt;
*
* Returns 0 on success or a negative error code.
*/
-int nla_validate(struct nlattr *head, int len, int maxtype,
+int nla_validate(const struct nlattr *head, int len, int maxtype,
const struct nla_policy *policy)
{
- struct nlattr *nla;
+ const struct nlattr *nla;
int rem, err;
nla_for_each_attr(nla, head, len, rem) {
*
* Returns 0 on success or a negative error code.
*/
-int nla_parse(struct nlattr *tb[], int maxtype, struct nlattr *head, int len,
- const struct nla_policy *policy)
+int nla_parse(struct nlattr **tb, int maxtype, const struct nlattr *head,
+ int len, const struct nla_policy *policy)
{
- struct nlattr *nla;
+ const struct nlattr *nla;
int rem, err;
memset(tb, 0, sizeof(struct nlattr *) * (maxtype + 1));
goto errout;
}
- tb[type] = nla;
+ tb[type] = (struct nlattr *)nla;
}
}
*
* Returns the first attribute in the stream matching the specified type.
*/
-struct nlattr *nla_find(struct nlattr *head, int len, int attrtype)
+struct nlattr *nla_find(const struct nlattr *head, int len, int attrtype)
{
- struct nlattr *nla;
+ const struct nlattr *nla;
int rem;
nla_for_each_attr(nla, head, len, rem)
if (nla_type(nla) == attrtype)
- return nla;
+ return (struct nlattr *)nla;
return NULL;
}