};
static int validate_nla(struct nlattr *nla, int maxtype,
- struct nla_policy *policy)
+ const struct nla_policy *policy)
{
- struct nla_policy *pt;
+ const struct nla_policy *pt;
int minlen = 0, attrlen = nla_len(nla);
if (nla->nla_type <= 0 || nla->nla_type > maxtype)
return -ERANGE;
break;
+ case NLA_NESTED_COMPAT:
+ if (attrlen < pt->len)
+ return -ERANGE;
+ if (attrlen < NLA_ALIGN(pt->len))
+ break;
+ if (attrlen < NLA_ALIGN(pt->len) + NLA_HDRLEN)
+ return -ERANGE;
+ nla = nla_data(nla) + NLA_ALIGN(pt->len);
+ if (attrlen < NLA_ALIGN(pt->len) + NLA_HDRLEN + nla_len(nla))
+ return -ERANGE;
+ break;
default:
if (pt->len)
minlen = pt->len;
* Returns 0 on success or a negative error code.
*/
int nla_validate(struct nlattr *head, int len, int maxtype,
- struct nla_policy *policy)
+ const struct nla_policy *policy)
{
struct nlattr *nla;
int rem, err;
* Returns 0 on success or a negative error code.
*/
int nla_parse(struct nlattr *tb[], int maxtype, struct nlattr *head, int len,
- struct nla_policy *policy)
+ const struct nla_policy *policy)
{
struct nlattr *nla;
int rem, err;