#include "datapath.h"
#include "actions.h"
#include "flow.h"
-#include "loop_counter.h"
#include "table.h"
#include "vlan.h"
#include "vport-internal_dev.h"
struct datapath *dp = p->dp;
struct dp_stats_percpu *stats;
int stats_counter_off;
- struct sw_flow_actions *acts;
- struct loop_counter *loop;
int error;
OVS_CB(skb)->vport = p;
if (!OVS_CB(skb)->flow) {
struct sw_flow_key key;
struct tbl_node *flow_node;
+ int key_len;
bool is_frag;
/* Extract flow from 'skb' into 'key'. */
- error = flow_extract(skb, p->port_no, &key, &is_frag);
+ error = flow_extract(skb, p->port_no, &key, &key_len, &is_frag);
if (unlikely(error)) {
kfree_skb(skb);
return;
}
/* Look up flow. */
- flow_node = tbl_lookup(rcu_dereference(dp->table), &key,
- flow_hash(&key), flow_cmp);
+ flow_node = tbl_lookup(rcu_dereference(dp->table), &key, key_len,
+ flow_hash(&key, key_len), flow_cmp);
if (unlikely(!flow_node)) {
struct dp_upcall_info upcall;
stats_counter_off = offsetof(struct dp_stats_percpu, n_hit);
flow_used(OVS_CB(skb)->flow, skb);
-
- acts = rcu_dereference(OVS_CB(skb)->flow->sf_acts);
-
- /* Check whether we've looped too much. */
- loop = loop_get_counter();
- if (unlikely(++loop->count > MAX_LOOPS))
- loop->looping = true;
- if (unlikely(loop->looping)) {
- loop_suppress(dp, acts);
- kfree_skb(skb);
- goto out_loop;
- }
-
- /* Execute actions. */
- execute_actions(dp, skb, &OVS_CB(skb)->flow->key, acts->actions,
- acts->actions_len);
-
- /* Check whether sub-actions looped too much. */
- if (unlikely(loop->looping))
- loop_suppress(dp, acts);
-
-out_loop:
- /* Decrement loop counter. */
- if (!--loop->count)
- loop->looping = false;
- loop_put_counter();
+ execute_actions(dp, skb);
out:
/* Update datapath statistics. */
{
u32 group = packet_mc_group(dp, upcall_info->cmd);
struct sk_buff *nskb;
- int port_no;
int err;
- if (OVS_CB(skb)->vport)
- port_no = OVS_CB(skb)->vport->port_no;
- else
- port_no = ODPP_LOCAL;
-
do {
struct odp_header *upcall;
struct sk_buff *user_skb; /* to be queued to userspace */
[ODP_ACTION_ATTR_SET_TUNNEL] = 8,
[ODP_ACTION_ATTR_SET_PRIORITY] = 4,
[ODP_ACTION_ATTR_POP_PRIORITY] = 0,
- [ODP_ACTION_ATTR_DROP_SPOOFED_ARP] = 0,
};
int type = nla_type(a);
case ODP_ACTION_ATTR_SET_TUNNEL:
case ODP_ACTION_ATTR_SET_PRIORITY:
case ODP_ACTION_ATTR_POP_PRIORITY:
- case ODP_ACTION_ATTR_DROP_SPOOFED_ARP:
/* No validation needed. */
break;
{
struct odp_header *odp_header = info->userhdr;
struct nlattr **a = info->attrs;
+ struct sw_flow_actions *acts;
struct sk_buff *packet;
- struct sw_flow_key key;
+ struct sw_flow *flow;
struct datapath *dp;
struct ethhdr *eth;
bool is_frag;
+ int len;
int err;
+ int key_len;
err = -EINVAL;
- if (!a[ODP_PACKET_ATTR_PACKET] || !a[ODP_PACKET_ATTR_ACTIONS] ||
+ if (!a[ODP_PACKET_ATTR_PACKET] || !a[ODP_PACKET_ATTR_KEY] ||
+ !a[ODP_PACKET_ATTR_ACTIONS] ||
nla_len(a[ODP_PACKET_ATTR_PACKET]) < ETH_HLEN)
- goto exit;
+ goto err;
err = validate_actions(a[ODP_PACKET_ATTR_ACTIONS]);
if (err)
- goto exit;
+ goto err;
- packet = skb_clone(skb, GFP_KERNEL);
+ len = nla_len(a[ODP_PACKET_ATTR_PACKET]);
+ packet = __dev_alloc_skb(NET_IP_ALIGN + len, GFP_KERNEL);
err = -ENOMEM;
if (!packet)
- goto exit;
- packet->data = nla_data(a[ODP_PACKET_ATTR_PACKET]);
- packet->len = nla_len(a[ODP_PACKET_ATTR_PACKET]);
+ goto err;
+ skb_reserve(packet, NET_IP_ALIGN);
+
+ memcpy(__skb_put(packet, len), nla_data(a[ODP_PACKET_ATTR_PACKET]), len);
skb_reset_mac_header(packet);
eth = eth_hdr(packet);
else
packet->protocol = htons(ETH_P_802_2);
- err = flow_extract(packet, -1, &key, &is_frag);
+ /* Build an sw_flow for sending this packet. */
+ flow = flow_alloc();
+ err = PTR_ERR(flow);
+ if (IS_ERR(flow))
+ goto err_kfree_skb;
+
+ err = flow_extract(packet, -1, &flow->key, &key_len, &is_frag);
if (err)
- goto exit;
+ goto err_flow_put;
+ flow->tbl_node.hash = flow_hash(&flow->key, key_len);
+
+ err = flow_metadata_from_nlattrs(&flow->key.eth.in_port,
+ &flow->key.eth.tun_id,
+ a[ODP_PACKET_ATTR_KEY]);
+ if (err)
+ goto err_flow_put;
+
+ acts = flow_actions_alloc(a[ODP_PACKET_ATTR_ACTIONS]);
+ err = PTR_ERR(acts);
+ if (IS_ERR(acts))
+ goto err_flow_put;
+ rcu_assign_pointer(flow->sf_acts, acts);
- /* Initialize OVS_CB (it came from Netlink so might not be zeroed). */
- memset(OVS_CB(packet), 0, sizeof(struct ovs_skb_cb));
+ OVS_CB(packet)->flow = flow;
rcu_read_lock();
dp = get_dp(odp_header->dp_ifindex);
err = -ENODEV;
- if (dp)
- err = execute_actions(dp, packet, &key,
- nla_data(a[ODP_PACKET_ATTR_ACTIONS]),
- nla_len(a[ODP_PACKET_ATTR_ACTIONS]));
+ if (!dp)
+ goto err_unlock;
+ err = execute_actions(dp, packet);
rcu_read_unlock();
-exit:
+ flow_put(flow);
+ return err;
+
+err_unlock:
+ rcu_read_unlock();
+err_flow_put:
+ flow_put(flow);
+err_kfree_skb:
+ kfree_skb(packet);
+err:
return err;
}
static const struct nla_policy packet_policy[ODP_PACKET_ATTR_MAX + 1] = {
[ODP_PACKET_ATTR_PACKET] = { .type = NLA_UNSPEC },
+ [ODP_PACKET_ATTR_KEY] = { .type = NLA_NESTED },
[ODP_PACKET_ATTR_ACTIONS] = { .type = NLA_NESTED },
};
struct tbl *table;
u32 hash;
int error;
+ int key_len;
/* Extract key. */
error = -EINVAL;
if (!a[ODP_FLOW_ATTR_KEY])
goto error;
- error = flow_from_nlattrs(&key, a[ODP_FLOW_ATTR_KEY]);
+ error = flow_from_nlattrs(&key, &key_len, a[ODP_FLOW_ATTR_KEY]);
if (error)
goto error;
if (!dp)
goto error;
- hash = flow_hash(&key);
+ hash = flow_hash(&key, key_len);
table = get_table_protected(dp);
- flow_node = tbl_lookup(table, &key, hash, flow_cmp);
+ flow_node = tbl_lookup(table, &key, key_len, hash, flow_cmp);
if (!flow_node) {
struct sw_flow_actions *acts;
struct datapath *dp;
struct tbl *table;
int err;
+ int key_len;
if (!a[ODP_FLOW_ATTR_KEY])
return -EINVAL;
- err = flow_from_nlattrs(&key, a[ODP_FLOW_ATTR_KEY]);
+ err = flow_from_nlattrs(&key, &key_len, a[ODP_FLOW_ATTR_KEY]);
if (err)
return err;
return -ENODEV;
table = get_table_protected(dp);
- flow_node = tbl_lookup(table, &key, flow_hash(&key), flow_cmp);
+ flow_node = tbl_lookup(table, &key, key_len, flow_hash(&key, key_len),
+ flow_cmp);
if (!flow_node)
return -ENOENT;
struct datapath *dp;
struct tbl *table;
int err;
+ int key_len;
if (!a[ODP_FLOW_ATTR_KEY])
return flush_flows(odp_header->dp_ifindex);
- err = flow_from_nlattrs(&key, a[ODP_FLOW_ATTR_KEY]);
+ err = flow_from_nlattrs(&key, &key_len, a[ODP_FLOW_ATTR_KEY]);
if (err)
return err;
return -ENODEV;
table = get_table_protected(dp);
- flow_node = tbl_lookup(table, &key, flow_hash(&key), flow_cmp);
+ flow_node = tbl_lookup(table, &key, key_len, flow_hash(&key, key_len),
+ flow_cmp);
if (!flow_node)
return -ENOENT;
flow = flow_cast(flow_node);
return -EINVAL;
}
- return VERIFY_NUL_STRING(a[ODP_DP_ATTR_NAME], IFNAMSIZ - 1);
+ return CHECK_NUL_STRING(a[ODP_DP_ATTR_NAME], IFNAMSIZ - 1);
}
/* Called with genl_mutex and optionally with RTNL lock also. */
static int odp_vport_cmd_validate(struct nlattr *a[ODP_VPORT_ATTR_MAX + 1])
{
- return VERIFY_NUL_STRING(a[ODP_VPORT_ATTR_NAME], IFNAMSIZ - 1);
+ return CHECK_NUL_STRING(a[ODP_VPORT_ATTR_NAME], IFNAMSIZ - 1);
}
/* Called with RTNL lock or RCU read lock. */
if (IS_ERR(reply))
goto exit_unlock;
- err = genlmsg_reply(reply, info);
+ rcu_read_unlock();
+
+ return genlmsg_reply(reply, info);
exit_unlock:
rcu_read_unlock();
git://git.onelab.eu / sliver-openvswitch.git / blobdiff