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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_netem.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_netem.c')
-rw-r--r--net/sched/sch_netem.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 5da548fa7ae9..110973145a4b 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -834,7 +834,8 @@ static int dump_loss_model(const struct netem_sched_data *q,
.p23 = q->clg.a5,
};
- NLA_PUT(skb, NETEM_LOSS_GI, sizeof(gi), &gi);
+ if (nla_put(skb, NETEM_LOSS_GI, sizeof(gi), &gi))
+ goto nla_put_failure;
break;
}
case CLG_GILB_ELL: {
@@ -845,7 +846,8 @@ static int dump_loss_model(const struct netem_sched_data *q,
.k1 = q->clg.a4,
};
- NLA_PUT(skb, NETEM_LOSS_GE, sizeof(ge), &ge);
+ if (nla_put(skb, NETEM_LOSS_GE, sizeof(ge), &ge))
+ goto nla_put_failure;
break;
}
}
@@ -874,26 +876,31 @@ static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
qopt.loss = q->loss;
qopt.gap = q->gap;
qopt.duplicate = q->duplicate;
- NLA_PUT(skb, TCA_OPTIONS, sizeof(qopt), &qopt);
+ if (nla_put(skb, TCA_OPTIONS, sizeof(qopt), &qopt))
+ goto nla_put_failure;
cor.delay_corr = q->delay_cor.rho;
cor.loss_corr = q->loss_cor.rho;
cor.dup_corr = q->dup_cor.rho;
- NLA_PUT(skb, TCA_NETEM_CORR, sizeof(cor), &cor);
+ if (nla_put(skb, TCA_NETEM_CORR, sizeof(cor), &cor))
+ goto nla_put_failure;
reorder.probability = q->reorder;
reorder.correlation = q->reorder_cor.rho;
- NLA_PUT(skb, TCA_NETEM_REORDER, sizeof(reorder), &reorder);
+ if (nla_put(skb, TCA_NETEM_REORDER, sizeof(reorder), &reorder))
+ goto nla_put_failure;
corrupt.probability = q->corrupt;
corrupt.correlation = q->corrupt_cor.rho;
- NLA_PUT(skb, TCA_NETEM_CORRUPT, sizeof(corrupt), &corrupt);
+ if (nla_put(skb, TCA_NETEM_CORRUPT, sizeof(corrupt), &corrupt))
+ goto nla_put_failure;
rate.rate = q->rate;
rate.packet_overhead = q->packet_overhead;
rate.cell_size = q->cell_size;
rate.cell_overhead = q->cell_overhead;
- NLA_PUT(skb, TCA_NETEM_RATE, sizeof(rate), &rate);
+ if (nla_put(skb, TCA_NETEM_RATE, sizeof(rate), &rate))
+ goto nla_put_failure;
if (dump_loss_model(q, skb) != 0)
goto nla_put_failure;