summaryrefslogtreecommitdiff
path: root/net/openvswitch/datapath.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/openvswitch/datapath.c')
-rw-r--r--net/openvswitch/datapath.c109
1 files changed, 72 insertions, 37 deletions
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index ff8c4a4c1609..6fbd2decb19e 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -176,7 +176,7 @@ static inline struct datapath *get_dp(struct net *net, int dp_ifindex)
const char *ovs_dp_name(const struct datapath *dp)
{
struct vport *vport = ovs_vport_ovsl_rcu(dp, OVSP_LOCAL);
- return vport->ops->get_name(vport);
+ return ovs_vport_name(vport);
}
static int get_dpifindex(const struct datapath *dp)
@@ -188,7 +188,7 @@ static int get_dpifindex(const struct datapath *dp)
local = ovs_vport_rcu(dp, OVSP_LOCAL);
if (local)
- ifindex = netdev_vport_priv(local)->dev->ifindex;
+ ifindex = local->dev->ifindex;
else
ifindex = 0;
@@ -275,6 +275,7 @@ void ovs_dp_process_packet(struct sk_buff *skb, struct sw_flow_key *key)
memset(&upcall, 0, sizeof(upcall));
upcall.cmd = OVS_PACKET_CMD_MISS;
upcall.portid = ovs_vport_find_upcall_portid(p, skb);
+ upcall.mru = OVS_CB(skb)->mru;
error = ovs_dp_upcall(dp, skb, key, &upcall);
if (unlikely(error))
kfree_skb(skb);
@@ -400,9 +401,23 @@ static size_t upcall_msg_size(const struct dp_upcall_info *upcall_info,
if (upcall_info->actions_len)
size += nla_total_size(upcall_info->actions_len);
+ /* OVS_PACKET_ATTR_MRU */
+ if (upcall_info->mru)
+ size += nla_total_size(sizeof(upcall_info->mru));
+
return size;
}
+static void pad_packet(struct datapath *dp, struct sk_buff *skb)
+{
+ if (!(dp->user_features & OVS_DP_F_UNALIGNED)) {
+ size_t plen = NLA_ALIGN(skb->len) - skb->len;
+
+ if (plen > 0)
+ memset(skb_put(skb, plen), 0, plen);
+ }
+}
+
static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
const struct sw_flow_key *key,
const struct dp_upcall_info *upcall_info)
@@ -476,7 +491,8 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
if (upcall_info->egress_tun_info) {
nla = nla_nest_start(user_skb, OVS_PACKET_ATTR_EGRESS_TUN_KEY);
err = ovs_nla_put_egress_tunnel_key(user_skb,
- upcall_info->egress_tun_info);
+ upcall_info->egress_tun_info,
+ upcall_info->egress_tun_opts);
BUG_ON(err);
nla_nest_end(user_skb, nla);
}
@@ -492,6 +508,16 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
nla_nest_cancel(user_skb, nla);
}
+ /* Add OVS_PACKET_ATTR_MRU */
+ if (upcall_info->mru) {
+ if (nla_put_u16(user_skb, OVS_PACKET_ATTR_MRU,
+ upcall_info->mru)) {
+ err = -ENOBUFS;
+ goto out;
+ }
+ pad_packet(dp, user_skb);
+ }
+
/* Only reserve room for attribute header, packet data is added
* in skb_zerocopy() */
if (!(nla = nla_reserve(user_skb, OVS_PACKET_ATTR_PACKET, 0))) {
@@ -505,12 +531,7 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
goto out;
/* Pad OVS_PACKET_ATTR_PACKET if linear copy was performed */
- if (!(dp->user_features & OVS_DP_F_UNALIGNED)) {
- size_t plen = NLA_ALIGN(user_skb->len) - user_skb->len;
-
- if (plen > 0)
- memset(skb_put(user_skb, plen), 0, plen);
- }
+ pad_packet(dp, user_skb);
((struct nlmsghdr *) user_skb->data)->nlmsg_len = user_skb->len;
@@ -527,6 +548,7 @@ out:
static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
{
struct ovs_header *ovs_header = info->userhdr;
+ struct net *net = sock_net(skb->sk);
struct nlattr **a = info->attrs;
struct sw_flow_actions *acts;
struct sk_buff *packet;
@@ -535,6 +557,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
struct datapath *dp;
struct ethhdr *eth;
struct vport *input_vport;
+ u16 mru = 0;
int len;
int err;
bool log = !a[OVS_PACKET_ATTR_PROBE];
@@ -564,29 +587,35 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
else
packet->protocol = htons(ETH_P_802_2);
+ /* Set packet's mru */
+ if (a[OVS_PACKET_ATTR_MRU]) {
+ mru = nla_get_u16(a[OVS_PACKET_ATTR_MRU]);
+ packet->ignore_df = 1;
+ }
+ OVS_CB(packet)->mru = mru;
+
/* Build an sw_flow for sending this packet. */
flow = ovs_flow_alloc();
err = PTR_ERR(flow);
if (IS_ERR(flow))
goto err_kfree_skb;
- err = ovs_flow_key_extract_userspace(a[OVS_PACKET_ATTR_KEY], packet,
- &flow->key, log);
+ err = ovs_flow_key_extract_userspace(net, a[OVS_PACKET_ATTR_KEY],
+ packet, &flow->key, log);
if (err)
goto err_flow_free;
- err = ovs_nla_copy_actions(a[OVS_PACKET_ATTR_ACTIONS],
+ err = ovs_nla_copy_actions(net, a[OVS_PACKET_ATTR_ACTIONS],
&flow->key, &acts, log);
if (err)
goto err_flow_free;
rcu_assign_pointer(flow->sf_acts, acts);
- OVS_CB(packet)->egress_tun_info = NULL;
packet->priority = flow->key.phy.priority;
packet->mark = flow->key.phy.skb_mark;
rcu_read_lock();
- dp = get_dp_rcu(sock_net(skb->sk), ovs_header->dp_ifindex);
+ dp = get_dp_rcu(net, ovs_header->dp_ifindex);
err = -ENODEV;
if (!dp)
goto err_unlock;
@@ -598,6 +627,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
if (!input_vport)
goto err_unlock;
+ packet->dev = input_vport->dev;
OVS_CB(packet)->input_vport = input_vport;
sf_acts = rcu_dereference(flow->sf_acts);
@@ -624,6 +654,7 @@ static const struct nla_policy packet_policy[OVS_PACKET_ATTR_MAX + 1] = {
[OVS_PACKET_ATTR_KEY] = { .type = NLA_NESTED },
[OVS_PACKET_ATTR_ACTIONS] = { .type = NLA_NESTED },
[OVS_PACKET_ATTR_PROBE] = { .type = NLA_FLAG },
+ [OVS_PACKET_ATTR_MRU] = { .type = NLA_U16 },
};
static const struct genl_ops dp_packet_genl_ops[] = {
@@ -713,7 +744,7 @@ static size_t ovs_flow_cmd_msg_size(const struct sw_flow_actions *acts,
/* OVS_FLOW_ATTR_ACTIONS */
if (should_fill_actions(ufid_flags))
- len += nla_total_size(acts->actions_len);
+ len += nla_total_size(acts->orig_len);
return len
+ nla_total_size(sizeof(struct ovs_flow_stats)) /* OVS_FLOW_ATTR_STATS */
@@ -880,6 +911,7 @@ static struct sk_buff *ovs_flow_cmd_build_info(const struct sw_flow *flow,
static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
{
+ struct net *net = sock_net(skb->sk);
struct nlattr **a = info->attrs;
struct ovs_header *ovs_header = info->userhdr;
struct sw_flow *flow = NULL, *new_flow;
@@ -915,7 +947,7 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
/* Extract key. */
ovs_match_init(&match, &key, &mask);
- error = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY],
+ error = ovs_nla_get_match(net, &match, a[OVS_FLOW_ATTR_KEY],
a[OVS_FLOW_ATTR_MASK], log);
if (error)
goto err_kfree_flow;
@@ -929,8 +961,8 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
goto err_kfree_flow;
/* Validate actions. */
- error = ovs_nla_copy_actions(a[OVS_FLOW_ATTR_ACTIONS], &new_flow->key,
- &acts, log);
+ error = ovs_nla_copy_actions(net, a[OVS_FLOW_ATTR_ACTIONS],
+ &new_flow->key, &acts, log);
if (error) {
OVS_NLERR(log, "Flow actions may not be safe on all matching packets.");
goto err_kfree_flow;
@@ -944,7 +976,7 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
}
ovs_lock();
- dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
+ dp = get_dp(net, ovs_header->dp_ifindex);
if (unlikely(!dp)) {
error = -ENODEV;
goto err_unlock_ovs;
@@ -1018,7 +1050,7 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
}
ovs_unlock();
- ovs_nla_free_flow_actions(old_acts);
+ ovs_nla_free_flow_actions_rcu(old_acts);
ovs_flow_free(new_flow, false);
}
@@ -1030,7 +1062,7 @@ err_unlock_ovs:
ovs_unlock();
kfree_skb(reply);
err_kfree_acts:
- kfree(acts);
+ ovs_nla_free_flow_actions(acts);
err_kfree_flow:
ovs_flow_free(new_flow, false);
error:
@@ -1038,7 +1070,8 @@ error:
}
/* Factor out action copy to avoid "Wframe-larger-than=1024" warning. */
-static struct sw_flow_actions *get_flow_actions(const struct nlattr *a,
+static struct sw_flow_actions *get_flow_actions(struct net *net,
+ const struct nlattr *a,
const struct sw_flow_key *key,
const struct sw_flow_mask *mask,
bool log)
@@ -1048,7 +1081,7 @@ static struct sw_flow_actions *get_flow_actions(const struct nlattr *a,
int error;
ovs_flow_mask_key(&masked_key, key, mask);
- error = ovs_nla_copy_actions(a, &masked_key, &acts, log);
+ error = ovs_nla_copy_actions(net, a, &masked_key, &acts, log);
if (error) {
OVS_NLERR(log,
"Actions may not be safe on all matching packets");
@@ -1060,6 +1093,7 @@ static struct sw_flow_actions *get_flow_actions(const struct nlattr *a,
static int ovs_flow_cmd_set(struct sk_buff *skb, struct genl_info *info)
{
+ struct net *net = sock_net(skb->sk);
struct nlattr **a = info->attrs;
struct ovs_header *ovs_header = info->userhdr;
struct sw_flow_key key;
@@ -1084,15 +1118,15 @@ static int ovs_flow_cmd_set(struct sk_buff *skb, struct genl_info *info)
ufid_present = ovs_nla_get_ufid(&sfid, a[OVS_FLOW_ATTR_UFID], log);
ovs_match_init(&match, &key, &mask);
- error = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY],
+ error = ovs_nla_get_match(net, &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,
- log);
+ acts = get_flow_actions(net, a[OVS_FLOW_ATTR_ACTIONS], &key,
+ &mask, log);
if (IS_ERR(acts)) {
error = PTR_ERR(acts);
goto error;
@@ -1108,7 +1142,7 @@ static int ovs_flow_cmd_set(struct sk_buff *skb, struct genl_info *info)
}
ovs_lock();
- dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
+ dp = get_dp(net, ovs_header->dp_ifindex);
if (unlikely(!dp)) {
error = -ENODEV;
goto err_unlock_ovs;
@@ -1157,7 +1191,7 @@ static int ovs_flow_cmd_set(struct sk_buff *skb, struct genl_info *info)
if (reply)
ovs_notify(&dp_flow_genl_family, reply, info);
if (old_acts)
- ovs_nla_free_flow_actions(old_acts);
+ ovs_nla_free_flow_actions_rcu(old_acts);
return 0;
@@ -1165,7 +1199,7 @@ err_unlock_ovs:
ovs_unlock();
kfree_skb(reply);
err_kfree_acts:
- kfree(acts);
+ ovs_nla_free_flow_actions(acts);
error:
return error;
}
@@ -1174,6 +1208,7 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr **a = info->attrs;
struct ovs_header *ovs_header = info->userhdr;
+ struct net *net = sock_net(skb->sk);
struct sw_flow_key key;
struct sk_buff *reply;
struct sw_flow *flow;
@@ -1188,7 +1223,7 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
ufid_present = ovs_nla_get_ufid(&ufid, a[OVS_FLOW_ATTR_UFID], log);
if (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(net, &match, a[OVS_FLOW_ATTR_KEY], NULL,
log);
} else if (!ufid_present) {
OVS_NLERR(log,
@@ -1232,6 +1267,7 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr **a = info->attrs;
struct ovs_header *ovs_header = info->userhdr;
+ struct net *net = sock_net(skb->sk);
struct sw_flow_key key;
struct sk_buff *reply;
struct sw_flow *flow = NULL;
@@ -1246,8 +1282,8 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
ufid_present = ovs_nla_get_ufid(&ufid, a[OVS_FLOW_ATTR_UFID], log);
if (a[OVS_FLOW_ATTR_KEY]) {
ovs_match_init(&match, &key, NULL);
- err = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY], NULL,
- log);
+ err = ovs_nla_get_match(net, &match, a[OVS_FLOW_ATTR_KEY],
+ NULL, log);
if (unlikely(err))
return err;
}
@@ -1800,7 +1836,7 @@ static int ovs_vport_cmd_fill_info(struct vport *vport, struct sk_buff *skb,
if (nla_put_u32(skb, OVS_VPORT_ATTR_PORT_NO, vport->port_no) ||
nla_put_u32(skb, OVS_VPORT_ATTR_TYPE, vport->ops->type) ||
nla_put_string(skb, OVS_VPORT_ATTR_NAME,
- vport->ops->get_name(vport)))
+ ovs_vport_name(vport)))
goto nla_put_failure;
ovs_vport_get_stats(vport, &vport_stats);
@@ -2203,6 +2239,7 @@ static int __net_init ovs_init_net(struct net *net)
INIT_LIST_HEAD(&ovs_net->dps);
INIT_WORK(&ovs_net->dp_notify_work, ovs_dp_notify_wq);
+ ovs_ct_init(net);
return 0;
}
@@ -2219,13 +2256,10 @@ static void __net_exit list_vports_from_net(struct net *net, struct net *dnet,
struct vport *vport;
hlist_for_each_entry(vport, &dp->ports[i], dp_hash_node) {
- struct netdev_vport *netdev_vport;
-
if (vport->ops->type != OVS_VPORT_TYPE_INTERNAL)
continue;
- netdev_vport = netdev_vport_priv(vport);
- if (dev_net(netdev_vport->dev) == dnet)
+ if (dev_net(vport->dev) == dnet)
list_add(&vport->detach_list, head);
}
}
@@ -2240,6 +2274,7 @@ static void __net_exit ovs_exit_net(struct net *dnet)
struct net *net;
LIST_HEAD(head);
+ ovs_ct_exit(dnet);
ovs_lock();
list_for_each_entry_safe(dp, dp_next, &ovs_net->dps, list_node)
__dp_destroy(dp);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-20 09:11:11 +0300