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authorDavid S. Miller <davem@davemloft.net>2012-03-29 13:11:39 +0400
committerDavid S. Miller <davem@davemloft.net>2012-04-02 02:11:37 +0400
commit1b34ec43c9b3de44a5420841ab293d1b2035a94c (patch)
tree8d6cf966c813e0e61001655179b5ef8e5f1b54b3 /net/sched/sch_dsmark.c
parent9360ffd1859720f6520cf59241909b74dae369d0 (diff)
downloadlinux-1b34ec43c9b3de44a5420841ab293d1b2035a94c.tar.xz
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/sch_dsmark.c')
-rw-r--r--net/sched/sch_dsmark.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 2c790204d042..389b856c6653 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -429,8 +429,9 @@ static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl,
opts = nla_nest_start(skb, TCA_OPTIONS);
if (opts == NULL)
goto nla_put_failure;
- NLA_PUT_U8(skb, TCA_DSMARK_MASK, p->mask[cl - 1]);
- NLA_PUT_U8(skb, TCA_DSMARK_VALUE, p->value[cl - 1]);
+ if (nla_put_u8(skb, TCA_DSMARK_MASK, p->mask[cl - 1]) ||
+ nla_put_u8(skb, TCA_DSMARK_VALUE, p->value[cl - 1]))
+ goto nla_put_failure;
return nla_nest_end(skb, opts);
@@ -447,13 +448,16 @@ static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
opts = nla_nest_start(skb, TCA_OPTIONS);
if (opts == NULL)
goto nla_put_failure;
- NLA_PUT_U16(skb, TCA_DSMARK_INDICES, p->indices);
+ if (nla_put_u16(skb, TCA_DSMARK_INDICES, p->indices))
+ goto nla_put_failure;
- if (p->default_index != NO_DEFAULT_INDEX)
- NLA_PUT_U16(skb, TCA_DSMARK_DEFAULT_INDEX, p->default_index);
+ if (p->default_index != NO_DEFAULT_INDEX &&
+ nla_put_u16(skb, TCA_DSMARK_DEFAULT_INDEX, p->default_index))
+ goto nla_put_failure;
- if (p->set_tc_index)
- NLA_PUT_FLAG(skb, TCA_DSMARK_SET_TC_INDEX);
+ if (p->set_tc_index &&
+ nla_put_flag(skb, TCA_DSMARK_SET_TC_INDEX))
+ goto nla_put_failure;
return nla_nest_end(skb, opts);