From 5176f91ea83f1a59eba4dba88634a4729d51d1ac Mon Sep 17 00:00:00 2001 From: Thomas Graf Date: Sat, 26 Aug 2006 20:13:18 -0700 Subject: [NETLINK]: Make use of NLA_STRING/NLA_NUL_STRING attribute validation Converts existing NLA_STRING attributes to use the new validation features, saving a couple of temporary buffers. Signed-off-by: Thomas Graf Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'net/core/rtnetlink.c') diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 8f22549..0ebcf84 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -371,8 +371,8 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) } static struct nla_policy ifla_policy[IFLA_MAX+1] __read_mostly = { - [IFLA_IFNAME] = { .type = NLA_STRING }, - [IFLA_MAP] = { .minlen = sizeof(struct rtnl_link_ifmap) }, + [IFLA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ-1 }, + [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) }, [IFLA_MTU] = { .type = NLA_U32 }, [IFLA_TXQLEN] = { .type = NLA_U32 }, [IFLA_WEIGHT] = { .type = NLA_U32 }, @@ -392,9 +392,8 @@ static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) if (err < 0) goto errout; - if (tb[IFLA_IFNAME] && - nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ) >= IFNAMSIZ) - return -EINVAL; + if (tb[IFLA_IFNAME]) + nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ); err = -EINVAL; ifm = nlmsg_data(nlh); -- cgit v1.1