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authorHolger Eitzenberger <holger@eitzenberger.org>2009-03-25 18:26:30 +0100
committerPatrick McHardy <kaber@trash.net>2009-03-25 18:26:30 +0100
commite487eb99cf9381a4f8254fa01747a85818da612b (patch)
tree2381e552d88063982bea03a16db942ebcc295fc2 /include/net/netlink.h
parentd0dba7255b541f1651a88e75ebdb20dd45509c2f (diff)
downloadlwn-e487eb99cf9381a4f8254fa01747a85818da612b.tar.gz
lwn-e487eb99cf9381a4f8254fa01747a85818da612b.zip
netlink: add nla_policy_len()
It calculates the max. length of a Netlink policy, which is usefull for allocating Netlink buffers roughly the size of the actual message. Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include/net/netlink.h')
-rw-r--r--include/net/netlink.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 8a6150a3f4c7..eddb50289d6d 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -230,6 +230,7 @@ extern int nla_validate(struct nlattr *head, int len, int maxtype,
extern int nla_parse(struct nlattr *tb[], int maxtype,
struct nlattr *head, int len,
const struct nla_policy *policy);
+extern int nla_policy_len(const struct nla_policy *, int);
extern struct nlattr * nla_find(struct nlattr *head, int len, int attrtype);
extern size_t nla_strlcpy(char *dst, const struct nlattr *nla,
size_t dstsize);