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Diffstat (limited to 'net/openvswitch/datapath.c')
-rw-r--r--net/openvswitch/datapath.c49
1 files changed, 31 insertions, 18 deletions
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 65561ebb489e..ab141d49bb9d 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -526,6 +526,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
struct vport *input_vport;
int len;
int err;
+ bool log = !a[OVS_FLOW_ATTR_PROBE];
err = -EINVAL;
if (!a[OVS_PACKET_ATTR_PACKET] || !a[OVS_PACKET_ATTR_KEY] ||
@@ -559,12 +560,12 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
goto err_kfree_skb;
err = ovs_flow_key_extract_userspace(a[OVS_PACKET_ATTR_KEY], packet,
- &flow->key);
+ &flow->key, log);
if (err)
goto err_flow_free;
err = ovs_nla_copy_actions(a[OVS_PACKET_ATTR_ACTIONS],
- &flow->key, &acts);
+ &flow->key, &acts, log);
if (err)
goto err_flow_free;
@@ -855,15 +856,16 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
struct sw_flow_actions *acts;
struct sw_flow_match match;
int error;
+ bool log = !a[OVS_FLOW_ATTR_PROBE];
/* Must have key and actions. */
error = -EINVAL;
if (!a[OVS_FLOW_ATTR_KEY]) {
- OVS_NLERR("Flow key attribute not present in new flow.\n");
+ OVS_NLERR(log, "Flow key attr not present in new flow.");
goto error;
}
if (!a[OVS_FLOW_ATTR_ACTIONS]) {
- OVS_NLERR("Flow actions attribute not present in new flow.\n");
+ OVS_NLERR(log, "Flow actions attr not present in new flow.");
goto error;
}
@@ -878,8 +880,8 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
/* Extract key. */
ovs_match_init(&match, &new_flow->unmasked_key, &mask);
- error = ovs_nla_get_match(&match,
- a[OVS_FLOW_ATTR_KEY], a[OVS_FLOW_ATTR_MASK]);
+ error = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY],
+ a[OVS_FLOW_ATTR_MASK], log);
if (error)
goto err_kfree_flow;
@@ -887,9 +889,9 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
/* Validate actions. */
error = ovs_nla_copy_actions(a[OVS_FLOW_ATTR_ACTIONS], &new_flow->key,
- &acts);
+ &acts, log);
if (error) {
- OVS_NLERR("Flow actions may not be safe on all matching packets.\n");
+ OVS_NLERR(log, "Flow actions may not be safe on all matching packets.");
goto err_kfree_flow;
}
@@ -942,6 +944,7 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
}
/* The unmasked key has to be the same for flow updates. */
if (unlikely(!ovs_flow_cmp_unmasked_key(flow, &match))) {
+ /* Look for any overlapping flow. */
flow = ovs_flow_tbl_lookup_exact(&dp->table, &match);
if (!flow) {
error = -ENOENT;
@@ -984,16 +987,18 @@ error:
/* Factor out action copy to avoid "Wframe-larger-than=1024" warning. */
static struct sw_flow_actions *get_flow_actions(const struct nlattr *a,
const struct sw_flow_key *key,
- const struct sw_flow_mask *mask)
+ const struct sw_flow_mask *mask,
+ bool log)
{
struct sw_flow_actions *acts;
struct sw_flow_key masked_key;
int error;
ovs_flow_mask_key(&masked_key, key, mask);
- error = ovs_nla_copy_actions(a, &masked_key, &acts);
+ error = ovs_nla_copy_actions(a, &masked_key, &acts, log);
if (error) {
- OVS_NLERR("Actions may not be safe on all matching packets.\n");
+ OVS_NLERR(log,
+ "Actions may not be safe on all matching packets");
return ERR_PTR(error);
}
@@ -1012,23 +1017,25 @@ static int ovs_flow_cmd_set(struct sk_buff *skb, struct genl_info *info)
struct sw_flow_actions *old_acts = NULL, *acts = NULL;
struct sw_flow_match match;
int error;
+ bool log = !a[OVS_FLOW_ATTR_PROBE];
/* Extract key. */
error = -EINVAL;
if (!a[OVS_FLOW_ATTR_KEY]) {
- OVS_NLERR("Flow key attribute not present in set flow.\n");
+ OVS_NLERR(log, "Flow key attribute not present in set flow.");
goto error;
}
ovs_match_init(&match, &key, &mask);
- error = ovs_nla_get_match(&match,
- a[OVS_FLOW_ATTR_KEY], a[OVS_FLOW_ATTR_MASK]);
+ error = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY],
+ a[OVS_FLOW_ATTR_MASK], log);
if (error)
goto error;
/* Validate actions. */
if (a[OVS_FLOW_ATTR_ACTIONS]) {
- acts = get_flow_actions(a[OVS_FLOW_ATTR_ACTIONS], &key, &mask);
+ acts = get_flow_actions(a[OVS_FLOW_ATTR_ACTIONS], &key, &mask,
+ log);
if (IS_ERR(acts)) {
error = PTR_ERR(acts);
goto error;
@@ -1109,14 +1116,16 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
struct datapath *dp;
struct sw_flow_match match;
int err;
+ bool log = !a[OVS_FLOW_ATTR_PROBE];
if (!a[OVS_FLOW_ATTR_KEY]) {
- OVS_NLERR("Flow get message rejected, Key attribute missing.\n");
+ OVS_NLERR(log,
+ "Flow get message rejected, Key attribute missing.");
return -EINVAL;
}
ovs_match_init(&match, &key, NULL);
- err = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY], NULL);
+ err = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY], NULL, log);
if (err)
return err;
@@ -1157,10 +1166,12 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
struct datapath *dp;
struct sw_flow_match match;
int err;
+ bool log = !a[OVS_FLOW_ATTR_PROBE];
if (likely(a[OVS_FLOW_ATTR_KEY])) {
ovs_match_init(&match, &key, NULL);
- err = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY], NULL);
+ err = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY], NULL,
+ log);
if (unlikely(err))
return err;
}
@@ -1250,8 +1261,10 @@ static int ovs_flow_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
static const struct nla_policy flow_policy[OVS_FLOW_ATTR_MAX + 1] = {
[OVS_FLOW_ATTR_KEY] = { .type = NLA_NESTED },
+ [OVS_FLOW_ATTR_MASK] = { .type = NLA_NESTED },
[OVS_FLOW_ATTR_ACTIONS] = { .type = NLA_NESTED },
[OVS_FLOW_ATTR_CLEAR] = { .type = NLA_FLAG },
+ [OVS_FLOW_ATTR_PROBE] = { .type = NLA_FLAG },
};
static const struct genl_ops dp_flow_genl_ops[] = {
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-25 20:40:12 +0000