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authorDavid S. Miller <davem@davemloft.net>2012-03-29 05:11:39 -0400
committerDavid S. Miller <davem@davemloft.net>2012-04-01 18:11:37 -0400
commit1b34ec43c9b3de44a5420841ab293d1b2035a94c (patch)
tree8d6cf966c813e0e61001655179b5ef8e5f1b54b3 /net/sched/act_api.c
parent9360ffd1859720f6520cf59241909b74dae369d0 (diff)
downloadop-kernel-dev-1b34ec43c9b3de44a5420841ab293d1b2035a94c.zip
op-kernel-dev-1b34ec43c9b3de44a5420841ab293d1b2035a94c.tar.gz
pkt_sched: Stop using NLA_PUT*().
These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_api.c')
-rw-r--r--net/sched/act_api.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 93fdf13..5cfb160 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -127,7 +127,8 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a,
nest = nla_nest_start(skb, a->order);
if (nest == NULL)
goto nla_put_failure;
- NLA_PUT_STRING(skb, TCA_KIND, a->ops->kind);
+ if (nla_put_string(skb, TCA_KIND, a->ops->kind))
+ goto nla_put_failure;
for (i = 0; i < (hinfo->hmask + 1); i++) {
p = hinfo->htab[tcf_hash(i, hinfo->hmask)];
@@ -139,7 +140,8 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a,
p = s_p;
}
}
- NLA_PUT_U32(skb, TCA_FCNT, n_i);
+ if (nla_put_u32(skb, TCA_FCNT, n_i))
+ goto nla_put_failure;
nla_nest_end(skb, nest);
return n_i;
@@ -437,7 +439,8 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
if (a->ops == NULL || a->ops->dump == NULL)
return err;
- NLA_PUT_STRING(skb, TCA_KIND, a->ops->kind);
+ if (nla_put_string(skb, TCA_KIND, a->ops->kind))
+ goto nla_put_failure;
if (tcf_action_copy_stats(skb, a, 0))
goto nla_put_failure;
nest = nla_nest_start(skb, TCA_OPTIONS);
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