/*
- * Copyright (c) 2007-2011 Nicira Networks.
+ * Copyright (c) 2007-2012 Nicira, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
#include <linux/rculist.h>
#include <linux/dmi.h>
#include <net/genetlink.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
#include "checksum.h"
#include "datapath.h"
#include "vport-internal_dev.h"
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) || \
- LINUX_VERSION_CODE > KERNEL_VERSION(3,2,0)
-#error Kernels before 2.6.18 or after 3.2 are not supported by this version of Open vSwitch.
+ LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)
+#error Kernels before 2.6.18 or after 3.3 are not supported by this version of Open vSwitch.
#endif
+#define REHASH_FLOW_INTERVAL (10 * 60 * HZ)
+static void rehash_flow_table(struct work_struct *work);
+static DECLARE_DELAYED_WORK(rehash_flow_wq, rehash_flow_table);
+
+int ovs_net_id __read_mostly;
+
int (*ovs_dp_ioctl_hook)(struct net_device *dev, struct ifreq *rq, int cmd);
EXPORT_SYMBOL(ovs_dp_ioctl_hook);
* each other.
*/
-/* Global list of datapaths to enable dumping them all out.
- * Protected by genl_mutex.
- */
-static LIST_HEAD(dps);
-
static struct vport *new_vport(const struct vport_parms *);
-static int queue_gso_packets(int dp_ifindex, struct sk_buff *,
+static int queue_gso_packets(struct net *, int dp_ifindex, struct sk_buff *,
const struct dp_upcall_info *);
-static int queue_userspace_packet(int dp_ifindex, struct sk_buff *,
+static int queue_userspace_packet(struct net *, int dp_ifindex,
+ struct sk_buff *,
const struct dp_upcall_info *);
/* Must be called with rcu_read_lock, genl_mutex, or RTNL lock. */
-static struct datapath *get_dp(int dp_ifindex)
+static struct datapath *get_dp(struct net *net, int dp_ifindex)
{
struct datapath *dp = NULL;
struct net_device *dev;
rcu_read_lock();
- dev = dev_get_by_index_rcu(&init_net, dp_ifindex);
+ dev = dev_get_by_index_rcu(net, dp_ifindex);
if (dev) {
struct vport *vport = ovs_internal_dev_get_vport(dev);
if (vport)
/* Must be called with rcu_read_lock or RTNL lock. */
const char *ovs_dp_name(const struct datapath *dp)
{
- struct vport *vport = rcu_dereference_rtnl(dp->ports[OVSP_LOCAL]);
+ struct vport *vport = ovs_vport_rtnl_rcu(dp, OVSP_LOCAL);
return vport->ops->get_name(vport);
}
rcu_read_lock();
- local = rcu_dereference(dp->ports[OVSP_LOCAL]);
+ local = ovs_vport_rcu(dp, OVSP_LOCAL);
if (local)
ifindex = local->ops->get_ifindex(local);
else
hdr->ifi_flags = port->ops->get_dev_flags(port);
hdr->ifi_change = 0;
- NLA_PUT_STRING(skb, IFLA_IFNAME, port->ops->get_name(port));
- NLA_PUT_U32(skb, IFLA_MASTER, get_dpifindex(dp));
- NLA_PUT_U32(skb, IFLA_MTU, port->ops->get_mtu(port));
+ if (nla_put_string(skb, IFLA_IFNAME, port->ops->get_name(port)) ||
+ nla_put_u32(skb, IFLA_MASTER, get_dpifindex(dp)) ||
+ nla_put_u32(skb, IFLA_MTU, port->ops->get_mtu(port)) ||
#ifdef IFLA_OPERSTATE
- NLA_PUT_U8(skb, IFLA_OPERSTATE,
- port->ops->is_running(port)
- ? port->ops->get_operstate(port)
- : IF_OPER_DOWN);
+ nla_put_u8(skb, IFLA_OPERSTATE,
+ port->ops->is_running(port) ?
+ port->ops->get_operstate(port) :
+ IF_OPER_DOWN) ||
#endif
-
- NLA_PUT(skb, IFLA_ADDRESS, ETH_ALEN, port->ops->get_addr(port));
+ nla_put(skb, IFLA_ADDRESS, ETH_ALEN, port->ops->get_addr(port)))
+ goto nla_put_failure;
return nlmsg_end(skb, nlh);
}
}
- rtnl_notify(skb, &init_net, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
+ rtnl_notify(skb, ovs_dp_get_net(port->dp), 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
return;
err:
- rtnl_set_sk_err(&init_net, RTNLGRP_LINK, err);
+ rtnl_set_sk_err(ovs_dp_get_net(port->dp), RTNLGRP_LINK, err);
out:
kfree_skb(skb);
}
ovs_flow_tbl_destroy((__force struct flow_table *)dp->table);
free_percpu(dp->stats_percpu);
+ release_net(ovs_dp_get_net(dp));
+ kfree(dp->ports);
kobject_put(&dp->ifobj);
}
+static struct hlist_head *vport_hash_bucket(const struct datapath *dp,
+ u16 port_no)
+{
+ return &dp->ports[port_no & (DP_VPORT_HASH_BUCKETS - 1)];
+}
+
+struct vport *ovs_lookup_vport(const struct datapath *dp, u16 port_no)
+{
+ struct vport *vport;
+ struct hlist_node *n;
+ struct hlist_head *head;
+
+ head = vport_hash_bucket(dp, port_no);
+ hlist_for_each_entry_rcu(vport, n, head, dp_hash_node) {
+ if (vport->port_no == port_no)
+ return vport;
+ }
+ return NULL;
+}
+
/* Called with RTNL lock and genl_lock. */
static struct vport *new_vport(const struct vport_parms *parms)
{
vport = ovs_vport_add(parms);
if (!IS_ERR(vport)) {
struct datapath *dp = parms->dp;
+ struct hlist_head *head = vport_hash_bucket(dp, vport->port_no);
- rcu_assign_pointer(dp->ports[parms->port_no], vport);
- list_add(&vport->node, &dp->port_list);
-
+ hlist_add_head_rcu(&vport->dp_hash_node, head);
dp_ifinfo_notify(RTM_NEWLINK, vport);
}
-
return vport;
}
if (p->port_no != OVSP_LOCAL)
ovs_dp_sysfs_del_if(p);
+
dp_ifinfo_notify(RTM_DELLINK, p);
/* First drop references to device. */
- list_del(&p->node);
- rcu_assign_pointer(p->dp->ports[p->port_no], NULL);
+ hlist_del_rcu(&p->dp_hash_node);
/* Then destroy it. */
ovs_vport_del(p);
.hdrsize = sizeof(struct ovs_header),
.name = OVS_PACKET_FAMILY,
.version = OVS_PACKET_VERSION,
- .maxattr = OVS_PACKET_ATTR_MAX
+ .maxattr = OVS_PACKET_ATTR_MAX,
+ SET_NETNSOK
};
int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
forward_ip_summed(skb, true);
if (!skb_is_gso(skb))
- err = queue_userspace_packet(dp_ifindex, skb, upcall_info);
+ err = queue_userspace_packet(ovs_dp_get_net(dp), dp_ifindex, skb, upcall_info);
else
- err = queue_gso_packets(dp_ifindex, skb, upcall_info);
+ err = queue_gso_packets(ovs_dp_get_net(dp), dp_ifindex, skb, upcall_info);
if (err)
goto err;
return err;
}
-static int queue_gso_packets(int dp_ifindex, struct sk_buff *skb,
+static int queue_gso_packets(struct net *net, int dp_ifindex,
+ struct sk_buff *skb,
const struct dp_upcall_info *upcall_info)
{
struct dp_upcall_info later_info;
/* Queue all of the segments. */
skb = segs;
do {
- err = queue_userspace_packet(dp_ifindex, skb, upcall_info);
+ err = queue_userspace_packet(net, dp_ifindex, skb, upcall_info);
if (err)
break;
return err;
}
-static int queue_userspace_packet(int dp_ifindex, struct sk_buff *skb,
+static int queue_userspace_packet(struct net *net, int dp_ifindex,
+ struct sk_buff *skb,
const struct dp_upcall_info *upcall_info)
{
struct ovs_header *upcall;
skb_copy_and_csum_dev(skb, nla_data(nla));
- err = genlmsg_unicast(&init_net, user_skb, upcall_info->pid);
+ err = genlmsg_unicast(net, user_skb, upcall_info->pid);
out:
kfree_skb(nskb);
}
/* Called with genl_mutex. */
-static int flush_flows(int dp_ifindex)
+static int flush_flows(struct datapath *dp)
{
struct flow_table *old_table;
struct flow_table *new_table;
- struct datapath *dp;
-
- dp = get_dp(dp_ifindex);
- if (!dp)
- return -ENODEV;
old_table = genl_dereference(dp->table);
new_table = ovs_flow_tbl_alloc(TBL_MIN_BUCKETS);
packet->priority = flow->key.phy.priority;
rcu_read_lock();
- dp = get_dp(ovs_header->dp_ifindex);
+ dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
err = -ENODEV;
if (!dp)
goto err_unlock;
.hdrsize = sizeof(struct ovs_header),
.name = OVS_FLOW_FAMILY,
.version = OVS_FLOW_VERSION,
- .maxattr = OVS_FLOW_ATTR_MAX
+ .maxattr = OVS_FLOW_ATTR_MAX,
+ SET_NETNSOK
};
static struct genl_multicast_group ovs_dp_flow_multicast_group = {
tcp_flags = flow->tcp_flags;
spin_unlock_bh(&flow->lock);
- if (used)
- NLA_PUT_U64(skb, OVS_FLOW_ATTR_USED, ovs_flow_used_time(used));
+ if (used &&
+ nla_put_u64(skb, OVS_FLOW_ATTR_USED, ovs_flow_used_time(used)))
+ goto nla_put_failure;
- if (stats.n_packets)
- NLA_PUT(skb, OVS_FLOW_ATTR_STATS,
- sizeof(struct ovs_flow_stats), &stats);
+ if (stats.n_packets &&
+ nla_put(skb, OVS_FLOW_ATTR_STATS,
+ sizeof(struct ovs_flow_stats), &stats))
+ goto nla_put_failure;
- if (tcp_flags)
- NLA_PUT_U8(skb, OVS_FLOW_ATTR_TCP_FLAGS, tcp_flags);
+ if (tcp_flags &&
+ nla_put_u8(skb, OVS_FLOW_ATTR_TCP_FLAGS, tcp_flags))
+ goto nla_put_failure;
/* If OVS_FLOW_ATTR_ACTIONS doesn't fit, skip dumping the actions if
* this is the first flow to be dumped into 'skb'. This is unusual for
goto error;
}
- dp = get_dp(ovs_header->dp_ifindex);
+ dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
error = -ENODEV;
if (!dp)
goto error;
ovs_dp_flow_multicast_group.id, info->nlhdr,
GFP_KERNEL);
else
- netlink_set_err(INIT_NET_GENL_SOCK, 0,
- ovs_dp_flow_multicast_group.id,
- PTR_ERR(reply));
+ netlink_set_err(GENL_SOCK(sock_net(skb->sk)), 0,
+ ovs_dp_flow_multicast_group.id, PTR_ERR(reply));
return 0;
error_free_flow:
if (err)
return err;
- dp = get_dp(ovs_header->dp_ifindex);
+ dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
if (!dp)
return -ENODEV;
int err;
int key_len;
+ dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
+ if (!dp)
+ return -ENODEV;
+
if (!a[OVS_FLOW_ATTR_KEY])
- return flush_flows(ovs_header->dp_ifindex);
+ return flush_flows(dp);
+
err = ovs_flow_from_nlattrs(&key, &key_len, a[OVS_FLOW_ATTR_KEY]);
if (err)
return err;
- dp = get_dp(ovs_header->dp_ifindex);
- if (!dp)
- return -ENODEV;
-
table = genl_dereference(dp->table);
flow = ovs_flow_tbl_lookup(table, &key, key_len);
if (!flow)
struct datapath *dp;
struct flow_table *table;
- dp = get_dp(ovs_header->dp_ifindex);
+ dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
if (!dp)
return -ENODEV;
.hdrsize = sizeof(struct ovs_header),
.name = OVS_DATAPATH_FAMILY,
.version = OVS_DATAPATH_VERSION,
- .maxattr = OVS_DP_ATTR_MAX
+ .maxattr = OVS_DP_ATTR_MAX,
+ SET_NETNSOK
};
static struct genl_multicast_group ovs_dp_datapath_multicast_group = {
goto nla_put_failure;
get_dp_stats(dp, &dp_stats);
- NLA_PUT(skb, OVS_DP_ATTR_STATS, sizeof(struct ovs_dp_stats), &dp_stats);
+ if (nla_put(skb, OVS_DP_ATTR_STATS, sizeof(struct ovs_dp_stats), &dp_stats))
+ goto nla_put_failure;
return genlmsg_end(skb, ovs_header);
}
/* Called with genl_mutex and optionally with RTNL lock also. */
-static struct datapath *lookup_datapath(struct ovs_header *ovs_header,
+static struct datapath *lookup_datapath(struct net *net,
+ struct ovs_header *ovs_header,
struct nlattr *a[OVS_DP_ATTR_MAX + 1])
{
struct datapath *dp;
if (!a[OVS_DP_ATTR_NAME])
- dp = get_dp(ovs_header->dp_ifindex);
+ dp = get_dp(net, ovs_header->dp_ifindex);
else {
struct vport *vport;
rcu_read_lock();
- vport = ovs_vport_locate(nla_data(a[OVS_DP_ATTR_NAME]));
+ vport = ovs_vport_locate(net, nla_data(a[OVS_DP_ATTR_NAME]));
dp = vport && vport->port_no == OVSP_LOCAL ? vport->dp : NULL;
rcu_read_unlock();
}
struct sk_buff *reply;
struct datapath *dp;
struct vport *vport;
- int err;
+ struct ovs_net *ovs_net;
+ int err, i;
err = -EINVAL;
if (!a[OVS_DP_ATTR_NAME] || !a[OVS_DP_ATTR_UPCALL_PID])
goto err;
rtnl_lock();
- err = -ENODEV;
- if (!try_module_get(THIS_MODULE))
- goto err_unlock_rtnl;
err = -ENOMEM;
dp = kzalloc(sizeof(*dp), GFP_KERNEL);
if (dp == NULL)
- goto err_put_module;
- INIT_LIST_HEAD(&dp->port_list);
+ goto err_unlock_rtnl;
/* Initialize kobject for bridge. This will be added as
* /sys/class/net/<devname>/brif later, if sysfs is enabled. */
err = -ENOMEM;
goto err_destroy_table;
}
+ ovs_dp_set_net(dp, hold_net(sock_net(skb->sk)));
+
+ dp->ports = kmalloc(DP_VPORT_HASH_BUCKETS * sizeof(struct hlist_head),
+ GFP_KERNEL);
+ if (!dp->ports) {
+ err = -ENOMEM;
+ goto err_destroy_percpu;
+ }
+
+ for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++)
+ INIT_HLIST_HEAD(&dp->ports[i]);
/* Set up our datapath device. */
parms.name = nla_data(a[OVS_DP_ATTR_NAME]);
if (err == -EBUSY)
err = -EEXIST;
- goto err_destroy_percpu;
+ goto err_destroy_ports_array;
}
reply = ovs_dp_cmd_build_info(dp, info->snd_pid,
if (IS_ERR(reply))
goto err_destroy_local_port;
- list_add_tail(&dp->list_node, &dps);
+ ovs_net = net_generic(ovs_dp_get_net(dp), ovs_net_id);
+ list_add_tail(&dp->list_node, &ovs_net->dps);
ovs_dp_sysfs_add_dp(dp);
rtnl_unlock();
return 0;
err_destroy_local_port:
- ovs_dp_detach_port(rtnl_dereference(dp->ports[OVSP_LOCAL]));
+ ovs_dp_detach_port(ovs_vport_rtnl(dp, OVSP_LOCAL));
+err_destroy_ports_array:
+ kfree(dp->ports);
err_destroy_percpu:
free_percpu(dp->stats_percpu);
err_destroy_table:
ovs_flow_tbl_destroy(genl_dereference(dp->table));
err_free_dp:
kfree(dp);
-err_put_module:
- module_put(THIS_MODULE);
err_unlock_rtnl:
rtnl_unlock();
err:
return err;
}
-static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
+/* Called with genl_mutex. */
+static void __dp_destroy(struct datapath *dp)
{
- struct vport *vport, *next_vport;
- struct sk_buff *reply;
- struct datapath *dp;
- int err;
-
- err = ovs_dp_cmd_validate(info->attrs);
- if (err)
- goto exit;
+ int i;
rtnl_lock();
- dp = lookup_datapath(info->userhdr, info->attrs);
- err = PTR_ERR(dp);
- if (IS_ERR(dp))
- goto exit_unlock;
- reply = ovs_dp_cmd_build_info(dp, info->snd_pid,
- info->snd_seq, OVS_DP_CMD_DEL);
- err = PTR_ERR(reply);
- if (IS_ERR(reply))
- goto exit_unlock;
+ for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) {
+ struct vport *vport;
+ struct hlist_node *node, *n;
- list_for_each_entry_safe(vport, next_vport, &dp->port_list, node)
- if (vport->port_no != OVSP_LOCAL)
- ovs_dp_detach_port(vport);
+ hlist_for_each_entry_safe(vport, node, n, &dp->ports[i], dp_hash_node)
+ if (vport->port_no != OVSP_LOCAL)
+ ovs_dp_detach_port(vport);
+ }
ovs_dp_sysfs_del_dp(dp);
list_del(&dp->list_node);
- ovs_dp_detach_port(rtnl_dereference(dp->ports[OVSP_LOCAL]));
+ ovs_dp_detach_port(ovs_vport_rtnl(dp, OVSP_LOCAL));
/* rtnl_unlock() will wait until all the references to devices that
* are pending unregistration have been dropped. We do it here to
rtnl_unlock();
call_rcu(&dp->rcu, destroy_dp_rcu);
- module_put(THIS_MODULE);
+}
+
+static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *reply;
+ struct datapath *dp;
+ int err;
+
+ err = ovs_dp_cmd_validate(info->attrs);
+ if (err)
+ return err;
+
+ dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
+ err = PTR_ERR(dp);
+ if (IS_ERR(dp))
+ return err;
+
+ reply = ovs_dp_cmd_build_info(dp, info->snd_pid,
+ info->snd_seq, OVS_DP_CMD_DEL);
+ err = PTR_ERR(reply);
+ if (IS_ERR(reply))
+ return err;
+
+ __dp_destroy(dp);
genl_notify(reply, genl_info_net(info), info->snd_pid,
ovs_dp_datapath_multicast_group.id, info->nlhdr,
GFP_KERNEL);
return 0;
-
-exit_unlock:
- rtnl_unlock();
-exit:
- return err;
}
static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
if (err)
return err;
- dp = lookup_datapath(info->userhdr, info->attrs);
+ dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
if (IS_ERR(dp))
return PTR_ERR(dp);
info->snd_seq, OVS_DP_CMD_NEW);
if (IS_ERR(reply)) {
err = PTR_ERR(reply);
- netlink_set_err(INIT_NET_GENL_SOCK, 0,
+ netlink_set_err(GENL_SOCK(sock_net(skb->sk)), 0,
ovs_dp_datapath_multicast_group.id, err);
return 0;
}
if (err)
return err;
- dp = lookup_datapath(info->userhdr, info->attrs);
+ dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
if (IS_ERR(dp))
return PTR_ERR(dp);
static int ovs_dp_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
+ struct ovs_net *ovs_net = net_generic(sock_net(skb->sk), ovs_net_id);
struct datapath *dp;
int skip = cb->args[0];
int i = 0;
- list_for_each_entry(dp, &dps, list_node) {
- if (i < skip)
- continue;
- if (ovs_dp_cmd_fill_info(dp, skb, NETLINK_CB(cb->skb).pid,
+ list_for_each_entry(dp, &ovs_net->dps, list_node) {
+ if (i >= skip &&
+ ovs_dp_cmd_fill_info(dp, skb, NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq, NLM_F_MULTI,
OVS_DP_CMD_NEW) < 0)
break;
.hdrsize = sizeof(struct ovs_header),
.name = OVS_VPORT_FAMILY,
.version = OVS_VPORT_VERSION,
- .maxattr = OVS_VPORT_ATTR_MAX
+ .maxattr = OVS_VPORT_ATTR_MAX,
+ SET_NETNSOK
};
struct genl_multicast_group ovs_dp_vport_multicast_group = {
ovs_header->dp_ifindex = get_dpifindex(vport->dp);
- 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));
- NLA_PUT_U32(skb, OVS_VPORT_ATTR_UPCALL_PID, vport->upcall_pid);
+ 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)) ||
+ nla_put_u32(skb, OVS_VPORT_ATTR_UPCALL_PID, vport->upcall_pid))
+ goto nla_put_failure;
ovs_vport_get_stats(vport, &vport_stats);
- NLA_PUT(skb, OVS_VPORT_ATTR_STATS, sizeof(struct ovs_vport_stats),
- &vport_stats);
+ if (nla_put(skb, OVS_VPORT_ATTR_STATS, sizeof(struct ovs_vport_stats),
+ &vport_stats))
+ goto nla_put_failure;
- NLA_PUT(skb, OVS_VPORT_ATTR_ADDRESS, ETH_ALEN,
- vport->ops->get_addr(vport));
+ if (nla_put(skb, OVS_VPORT_ATTR_ADDRESS, ETH_ALEN,
+ vport->ops->get_addr(vport)))
+ goto nla_put_failure;
err = ovs_vport_get_options(vport, skb);
if (err == -EMSGSIZE)
}
/* Called with RTNL lock or RCU read lock. */
-static struct vport *lookup_vport(struct ovs_header *ovs_header,
+static struct vport *lookup_vport(struct net *net,
+ struct ovs_header *ovs_header,
struct nlattr *a[OVS_VPORT_ATTR_MAX + 1])
{
struct datapath *dp;
struct vport *vport;
if (a[OVS_VPORT_ATTR_NAME]) {
- vport = ovs_vport_locate(nla_data(a[OVS_VPORT_ATTR_NAME]));
+ vport = ovs_vport_locate(net, nla_data(a[OVS_VPORT_ATTR_NAME]));
if (!vport)
return ERR_PTR(-ENODEV);
+ if (ovs_header->dp_ifindex &&
+ ovs_header->dp_ifindex != get_dpifindex(vport->dp))
+ return ERR_PTR(-ENODEV);
return vport;
} else if (a[OVS_VPORT_ATTR_PORT_NO]) {
u32 port_no = nla_get_u32(a[OVS_VPORT_ATTR_PORT_NO]);
if (port_no >= DP_MAX_PORTS)
return ERR_PTR(-EFBIG);
- dp = get_dp(ovs_header->dp_ifindex);
+ dp = get_dp(net, ovs_header->dp_ifindex);
if (!dp)
return ERR_PTR(-ENODEV);
- vport = rcu_dereference_rtnl(dp->ports[port_no]);
+ vport = ovs_vport_rtnl_rcu(dp, port_no);
if (!vport)
return ERR_PTR(-ENOENT);
return vport;
goto exit;
rtnl_lock();
- dp = get_dp(ovs_header->dp_ifindex);
+ dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
err = -ENODEV;
if (!dp)
goto exit_unlock;
if (port_no >= DP_MAX_PORTS)
goto exit_unlock;
- vport = rtnl_dereference(dp->ports[port_no]);
+ vport = ovs_vport_rtnl(dp, port_no);
err = -EBUSY;
if (vport)
goto exit_unlock;
err = -EFBIG;
goto exit_unlock;
}
- vport = rtnl_dereference(dp->ports[port_no]);
+ vport = ovs_vport_rtnl(dp, port_no);
if (!vport)
break;
}
goto exit;
rtnl_lock();
- vport = lookup_vport(info->userhdr, a);
+ vport = lookup_vport(sock_net(skb->sk), info->userhdr, a);
err = PTR_ERR(vport);
if (IS_ERR(vport))
goto exit_unlock;
err = ovs_vport_set_options(vport, a[OVS_VPORT_ATTR_OPTIONS]);
if (!err)
err = change_vport(vport, a);
+ else
+ goto exit_unlock;
if (!err && a[OVS_VPORT_ATTR_UPCALL_PID])
vport->upcall_pid = nla_get_u32(a[OVS_VPORT_ATTR_UPCALL_PID]);
OVS_VPORT_CMD_NEW);
if (IS_ERR(reply)) {
err = PTR_ERR(reply);
- netlink_set_err(INIT_NET_GENL_SOCK, 0,
+ netlink_set_err(GENL_SOCK(sock_net(skb->sk)), 0,
ovs_dp_vport_multicast_group.id, err);
return 0;
}
goto exit;
rtnl_lock();
- vport = lookup_vport(info->userhdr, a);
+ vport = lookup_vport(sock_net(skb->sk), info->userhdr, a);
err = PTR_ERR(vport);
if (IS_ERR(vport))
goto exit_unlock;
goto exit;
rcu_read_lock();
- vport = lookup_vport(ovs_header, a);
+ vport = lookup_vport(sock_net(skb->sk), ovs_header, a);
err = PTR_ERR(vport);
if (IS_ERR(vport))
goto exit_unlock;
{
struct ovs_header *ovs_header = genlmsg_data(nlmsg_data(cb->nlh));
struct datapath *dp;
- u32 port_no;
- int retval;
+ int bucket = cb->args[0], skip = cb->args[1];
+ int i, j = 0;
- dp = get_dp(ovs_header->dp_ifindex);
+ dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
if (!dp)
return -ENODEV;
rcu_read_lock();
- for (port_no = cb->args[0]; port_no < DP_MAX_PORTS; port_no++) {
+ for (i = bucket; i < DP_VPORT_HASH_BUCKETS; i++) {
struct vport *vport;
-
- vport = rcu_dereference(dp->ports[port_no]);
- if (!vport)
- continue;
-
- if (ovs_vport_cmd_fill_info(vport, skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, NLM_F_MULTI,
- OVS_VPORT_CMD_NEW) < 0)
- break;
+ struct hlist_node *n;
+
+ j = 0;
+ hlist_for_each_entry_rcu(vport, n, &dp->ports[i], dp_hash_node) {
+ if (j >= skip &&
+ ovs_vport_cmd_fill_info(vport, skb,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ NLM_F_MULTI,
+ OVS_VPORT_CMD_NEW) < 0)
+ goto out;
+
+ j++;
+ }
+ skip = 0;
}
+out:
rcu_read_unlock();
- cb->args[0] = port_no;
- retval = skb->len;
+ cb->args[0] = i;
+ cb->args[1] = j;
- return retval;
+ return skb->len;
}
static struct genl_ops dp_vport_genl_ops[] = {
return err;
}
+static int __rehash_flow_table(void *dummy)
+{
+ struct datapath *dp;
+ struct net *net;
+
+ rtnl_lock();
+ for_each_net(net) {
+ struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
+
+ list_for_each_entry(dp, &ovs_net->dps, list_node) {
+ struct flow_table *old_table = genl_dereference(dp->table);
+ struct flow_table *new_table;
+
+ new_table = ovs_flow_tbl_rehash(old_table);
+ if (!IS_ERR(new_table)) {
+ rcu_assign_pointer(dp->table, new_table);
+ ovs_flow_tbl_deferred_destroy(old_table);
+ }
+ }
+ }
+ rtnl_unlock();
+ return 0;
+}
+
+static void rehash_flow_table(struct work_struct *work)
+{
+ genl_exec(__rehash_flow_table, NULL);
+ schedule_delayed_work(&rehash_flow_wq, REHASH_FLOW_INTERVAL);
+}
+
+static int dp_destroy_all(void *data)
+{
+ struct datapath *dp, *dp_next;
+ struct ovs_net *ovs_net = data;
+
+ list_for_each_entry_safe(dp, dp_next, &ovs_net->dps, list_node)
+ __dp_destroy(dp);
+
+ return 0;
+}
+
+static int __net_init ovs_init_net(struct net *net)
+{
+ struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
+
+ INIT_LIST_HEAD(&ovs_net->dps);
+ return 0;
+}
+
+static void __net_exit ovs_exit_net(struct net *net)
+{
+ struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
+
+ genl_exec(dp_destroy_all, ovs_net);
+}
+
+static struct pernet_operations ovs_net_ops = {
+ .init = ovs_init_net,
+ .exit = ovs_exit_net,
+ .id = &ovs_net_id,
+ .size = sizeof(struct ovs_net),
+};
+
static int __init dp_init(void)
{
struct sk_buff *dummy_skb;
BUILD_BUG_ON(sizeof(struct ovs_skb_cb) > sizeof(dummy_skb->cb));
pr_info("Open vSwitch switching datapath %s, built "__DATE__" "__TIME__"\n",
- VERSION BUILDNR);
+ VERSION);
err = genl_exec_init();
if (err)
goto error;
- err = ovs_tnl_init();
+ err = ovs_workqueues_init();
if (err)
goto error_genl_exec;
+ err = ovs_tnl_init();
+ if (err)
+ goto error_wq;
+
err = ovs_flow_init();
if (err)
goto error_tnl_exit;
if (err)
goto error_flow_exit;
- err = register_netdevice_notifier(&ovs_dp_device_notifier);
+ err = register_pernet_device(&ovs_net_ops);
if (err)
goto error_vport_exit;
+ err = register_netdevice_notifier(&ovs_dp_device_notifier);
+ if (err)
+ goto error_netns_exit;
+
err = dp_register_genl();
if (err < 0)
goto error_unreg_notifier;
+ schedule_delayed_work(&rehash_flow_wq, REHASH_FLOW_INTERVAL);
+
return 0;
error_unreg_notifier:
unregister_netdevice_notifier(&ovs_dp_device_notifier);
+error_netns_exit:
+ unregister_pernet_device(&ovs_net_ops);
error_vport_exit:
ovs_vport_exit();
error_flow_exit:
ovs_flow_exit();
error_tnl_exit:
ovs_tnl_exit();
+error_wq:
+ ovs_workqueues_exit();
error_genl_exec:
genl_exec_exit();
error:
static void dp_cleanup(void)
{
- rcu_barrier();
+ cancel_delayed_work_sync(&rehash_flow_wq);
dp_unregister_genl(ARRAY_SIZE(dp_genl_families));
unregister_netdevice_notifier(&ovs_dp_device_notifier);
+ unregister_pernet_device(&ovs_net_ops);
+ rcu_barrier();
ovs_vport_exit();
ovs_flow_exit();
ovs_tnl_exit();
+ ovs_workqueues_exit();
genl_exec_exit();
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff