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ovs: align nlattr properly when needed 

I also fix commit 8b32ab9e6ef1: use nla_total_size_64bit() for
OVS_FLOW_ATTR_USED in ovs_flow_cmd_msg_size().

Fixes: 8b32ab9e6ef1 ("ovs: use nla_put_u64_64bit()")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel 2016-04-26 10:06:15 +02:00 committed by David S. Miller
parent 6ed46d1247
commit 66c7a5ee1a
2 changed files with 17 additions and 12 deletions
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2
include/uapi/linux/openvswitch.h
View File

@ -84,6 +84,7 @@ enum ovs_datapath_attr {
OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */
OVS_DP_ATTR_MEGAFLOW_STATS, /* struct ovs_dp_megaflow_stats */
OVS_DP_ATTR_USER_FEATURES, /* OVS_DP_F_* */
OVS_DP_ATTR_PAD,
__OVS_DP_ATTR_MAX
};
@ -253,6 +254,7 @@ enum ovs_vport_attr {
OVS_VPORT_ATTR_UPCALL_PID, /* array of u32 Netlink socket PIDs for */
/* receiving upcalls */
OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
OVS_VPORT_ATTR_PAD,
__OVS_VPORT_ATTR_MAX
};

27
net/openvswitch/datapath.c
View File

@ -738,9 +738,9 @@ static size_t ovs_flow_cmd_msg_size(const struct sw_flow_actions *acts,
len += nla_total_size(acts->orig_len);
return len
+ nla_total_size(sizeof(struct ovs_flow_stats)) /* OVS_FLOW_ATTR_STATS */
+ nla_total_size_64bit(sizeof(struct ovs_flow_stats)) /* OVS_FLOW_ATTR_STATS */
+ nla_total_size(1) /* OVS_FLOW_ATTR_TCP_FLAGS */
+ nla_total_size(8); /* OVS_FLOW_ATTR_USED */
+ nla_total_size_64bit(8); /* OVS_FLOW_ATTR_USED */
}
/* Called with ovs_mutex or RCU read lock. */
@ -759,7 +759,9 @@ static int ovs_flow_cmd_fill_stats(const struct sw_flow *flow,
return -EMSGSIZE;
if (stats.n_packets &&
nla_put(skb, OVS_FLOW_ATTR_STATS, sizeof(struct ovs_flow_stats), &stats))
nla_put_64bit(skb, OVS_FLOW_ATTR_STATS,
sizeof(struct ovs_flow_stats), &stats,
OVS_FLOW_ATTR_PAD))
return -EMSGSIZE;
if ((u8)ntohs(tcp_flags) &&
@ -1435,8 +1437,8 @@ static size_t ovs_dp_cmd_msg_size(void)
size_t msgsize = NLMSG_ALIGN(sizeof(struct ovs_header));
msgsize += nla_total_size(IFNAMSIZ);
msgsize += nla_total_size(sizeof(struct ovs_dp_stats));
msgsize += nla_total_size(sizeof(struct ovs_dp_megaflow_stats));
msgsize += nla_total_size_64bit(sizeof(struct ovs_dp_stats));
msgsize += nla_total_size_64bit(sizeof(struct ovs_dp_megaflow_stats));
msgsize += nla_total_size(sizeof(u32)); /* OVS_DP_ATTR_USER_FEATURES */
return msgsize;
@ -1463,13 +1465,13 @@ static int ovs_dp_cmd_fill_info(struct datapath *dp, struct sk_buff *skb,
goto nla_put_failure;
get_dp_stats(dp, &dp_stats, &dp_megaflow_stats);
if (nla_put(skb, OVS_DP_ATTR_STATS, sizeof(struct ovs_dp_stats),
&dp_stats))
if (nla_put_64bit(skb, OVS_DP_ATTR_STATS, sizeof(struct ovs_dp_stats),
&dp_stats, OVS_DP_ATTR_PAD))
goto nla_put_failure;
if (nla_put(skb, OVS_DP_ATTR_MEGAFLOW_STATS,
sizeof(struct ovs_dp_megaflow_stats),
&dp_megaflow_stats))
if (nla_put_64bit(skb, OVS_DP_ATTR_MEGAFLOW_STATS,
sizeof(struct ovs_dp_megaflow_stats),
&dp_megaflow_stats, OVS_DP_ATTR_PAD))
goto nla_put_failure;
if (nla_put_u32(skb, OVS_DP_ATTR_USER_FEATURES, dp->user_features))
@ -1838,8 +1840,9 @@ static int ovs_vport_cmd_fill_info(struct vport *vport, struct sk_buff *skb,
goto nla_put_failure;
ovs_vport_get_stats(vport, &vport_stats);
if (nla_put(skb, OVS_VPORT_ATTR_STATS, sizeof(struct ovs_vport_stats),
&vport_stats))
if (nla_put_64bit(skb, OVS_VPORT_ATTR_STATS,
sizeof(struct ovs_vport_stats), &vport_stats,
OVS_VPORT_ATTR_PAD))
goto nla_put_failure;
if (ovs_vport_get_upcall_portids(vport, skb))