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[NETLINK]: Introduce nested and byteorder flag to netlink attribute

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This change allows the generic attribute interface to be used within
the netfilter subsystem where this flag was initially introduced.

The byte-order flag is yet unused, it's intended use is to
allow automatic byte order convertions for all atomic types.

Signed-off-by: Thomas Graf <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Thomas Graf 2007-09-12 14:44:36 +02:00 • committed by David S. Miller
commit 8f4c1f9b04
7 changed files with 38 additions and 15 deletions
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10
net/netlink/attr.c
View file

@ -27,12 +27,12 @@ static int validate_nla(struct nlattr *nla, int maxtype,
const struct nla_policy *policy)
{
const struct nla_policy *pt;
int minlen = 0, attrlen = nla_len(nla);
int minlen = 0, attrlen = nla_len(nla), type = nla_type(nla);
if (nla->nla_type <= 0 || nla->nla_type > maxtype)
if (type <= 0 || type > maxtype)
return 0;
pt = &policy[nla->nla_type];
pt = &policy[type];
BUG_ON(pt->type > NLA_TYPE_MAX);
@ -149,7 +149,7 @@ int nla_parse(struct nlattr *tb[], int maxtype, struct nlattr *head, int len,
memset(tb, 0, sizeof(struct nlattr *) * (maxtype + 1));
nla_for_each_attr(nla, head, len, rem) {
u16 type = nla->nla_type;
u16 type = nla_type(nla);
if (type > 0 && type <= maxtype) {
if (policy) {
@ -185,7 +185,7 @@ struct nlattr *nla_find(struct nlattr *head, int len, int attrtype)
int rem;
nla_for_each_attr(nla, head, len, rem)
if (nla->nla_type == attrtype)
if (nla_type(nla) == attrtype)
return nla;
return NULL;