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authorPatrick McHardy <kaber@trash.net>2008-01-23 20:36:12 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:11:23 -0800
commit6fa8c0144b770dac941cf2c15053b6e24f046c8a (patch)
tree7c91cd0e9a98f0532df30a9d8549e2c76a3ce716 /net/sched/cls_rsvp.h
parent[NET_SCHED]: Use nla_policy for attribute validation in packet schedulers (diff)
downloadlinux-dev-6fa8c0144b770dac941cf2c15053b6e24f046c8a.tar.xz
linux-dev-6fa8c0144b770dac941cf2c15053b6e24f046c8a.zip
[NET_SCHED]: Use nla_policy for attribute validation in classifiers
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_rsvp.h')
-rw-r--r--net/sched/cls_rsvp.h26
1 files changed, 11 insertions, 15 deletions
diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h
index 61286a0f7a3e..7034ea4530e5 100644
--- a/net/sched/cls_rsvp.h
+++ b/net/sched/cls_rsvp.h
@@ -397,6 +397,15 @@ static u32 gen_tunnel(struct rsvp_head *data)
return 0;
}
+static const struct nla_policy rsvp_policy[TCA_RSVP_MAX + 1] = {
+ [TCA_RSVP_CLASSID] = { .type = NLA_U32 },
+ [TCA_RSVP_DST] = { .type = NLA_BINARY,
+ .len = RSVP_DST_LEN * sizeof(u32) },
+ [TCA_RSVP_SRC] = { .type = NLA_BINARY,
+ .len = RSVP_DST_LEN * sizeof(u32) },
+ [TCA_RSVP_PINFO] = { .len = sizeof(struct tc_rsvp_pinfo) },
+};
+
static int rsvp_change(struct tcf_proto *tp, unsigned long base,
u32 handle,
struct nlattr **tca,
@@ -416,7 +425,7 @@ static int rsvp_change(struct tcf_proto *tp, unsigned long base,
if (opt == NULL)
return handle ? -EINVAL : 0;
- err = nla_parse_nested(tb, TCA_RSVP_MAX, opt, NULL);
+ err = nla_parse_nested(tb, TCA_RSVP_MAX, opt, rsvp_policy);
if (err < 0)
return err;
@@ -452,30 +461,17 @@ static int rsvp_change(struct tcf_proto *tp, unsigned long base,
h2 = 16;
if (tb[TCA_RSVP_SRC-1]) {
- err = -EINVAL;
- if (nla_len(tb[TCA_RSVP_SRC-1]) != sizeof(f->src))
- goto errout;
memcpy(f->src, nla_data(tb[TCA_RSVP_SRC-1]), sizeof(f->src));
h2 = hash_src(f->src);
}
if (tb[TCA_RSVP_PINFO-1]) {
- err = -EINVAL;
- if (nla_len(tb[TCA_RSVP_PINFO-1]) < sizeof(struct tc_rsvp_pinfo))
- goto errout;
pinfo = nla_data(tb[TCA_RSVP_PINFO-1]);
f->spi = pinfo->spi;
f->tunnelhdr = pinfo->tunnelhdr;
}
- if (tb[TCA_RSVP_CLASSID-1]) {
- err = -EINVAL;
- if (nla_len(tb[TCA_RSVP_CLASSID-1]) != 4)
- goto errout;
+ if (tb[TCA_RSVP_CLASSID-1])
f->res.classid = nla_get_u32(tb[TCA_RSVP_CLASSID-1]);
- }
- err = -EINVAL;
- if (nla_len(tb[TCA_RSVP_DST-1]) != sizeof(f->src))
- goto errout;
dst = nla_data(tb[TCA_RSVP_DST-1]);
h1 = hash_dst(dst, pinfo ? pinfo->protocol : 0, pinfo ? pinfo->tunnelid : 0);