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Message-Id: <1333335521-1348-16-git-send-email-davem@davemloft.net>
Date: Sun, 1 Apr 2012 22:58:05 -0400
From: "David S. Miller" <davem@...emloft.net>
To: netdev@...r.kernel.org
Cc: "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 15/51] nf_conntrack_proto_sctp: Stop using NLA_PUT*().
From: "David S. Miller" <davem@...emloft.net>
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@...emloft.net>
---
net/netfilter/nf_conntrack_proto_sctp.c | 22 ++++++++++------------
1 files changed, 10 insertions(+), 12 deletions(-)
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 72b5088..996db2f 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -482,15 +482,12 @@ static int sctp_to_nlattr(struct sk_buff *skb, struct nlattr *nla,
if (!nest_parms)
goto nla_put_failure;
- NLA_PUT_U8(skb, CTA_PROTOINFO_SCTP_STATE, ct->proto.sctp.state);
-
- NLA_PUT_BE32(skb,
- CTA_PROTOINFO_SCTP_VTAG_ORIGINAL,
- ct->proto.sctp.vtag[IP_CT_DIR_ORIGINAL]);
-
- NLA_PUT_BE32(skb,
- CTA_PROTOINFO_SCTP_VTAG_REPLY,
- ct->proto.sctp.vtag[IP_CT_DIR_REPLY]);
+ if (nla_put_u8(skb, CTA_PROTOINFO_SCTP_STATE, ct->proto.sctp.state) ||
+ nla_put_be32(skb, CTA_PROTOINFO_SCTP_VTAG_ORIGINAL,
+ ct->proto.sctp.vtag[IP_CT_DIR_ORIGINAL]) ||
+ nla_put_be32(skb, CTA_PROTOINFO_SCTP_VTAG_REPLY,
+ ct->proto.sctp.vtag[IP_CT_DIR_REPLY]))
+ goto nla_put_failure;
spin_unlock_bh(&ct->lock);
@@ -578,9 +575,10 @@ sctp_timeout_obj_to_nlattr(struct sk_buff *skb, const void *data)
const unsigned int *timeouts = data;
int i;
- for (i=CTA_TIMEOUT_SCTP_UNSPEC+1; i<CTA_TIMEOUT_SCTP_MAX+1; i++)
- NLA_PUT_BE32(skb, i, htonl(timeouts[i] / HZ));
-
+ for (i=CTA_TIMEOUT_SCTP_UNSPEC+1; i<CTA_TIMEOUT_SCTP_MAX+1; i++) {
+ if (nla_put_be32(skb, i, htonl(timeouts[i] / HZ)))
+ goto nla_put_failure;
+ }
return 0;
nla_put_failure:
--
1.7.7.6
--
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