/*
- * Copyright (c) 2007-2013 Nicira, Inc.
+ * Copyright (c) 2007-2014 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/openvswitch.h>
#include <linux/rculist.h>
#include <linux/dmi.h>
-#include <linux/genetlink.h>
-#include <net/genetlink.h>
#include <net/genetlink.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
int ovs_net_id __read_mostly;
+static struct genl_family dp_packet_genl_family;
+static struct genl_family dp_flow_genl_family;
+static struct genl_family dp_datapath_genl_family;
+
+static struct genl_multicast_group ovs_dp_flow_multicast_group = {
+ .name = OVS_FLOW_MCGROUP
+};
+
+static struct genl_multicast_group ovs_dp_datapath_multicast_group = {
+ .name = OVS_DATAPATH_MCGROUP
+};
+
+struct genl_multicast_group ovs_dp_vport_multicast_group = {
+ .name = OVS_VPORT_MCGROUP
+};
+
/* Check if need to build a reply message.
* OVS userspace sets the NLM_F_ECHO flag if it needs the reply. */
-static bool ovs_must_notify(struct genl_info *info,
- const struct genl_multicast_group *grp)
+static bool ovs_must_notify(struct genl_family *family, struct genl_info *info,
+ unsigned int group)
{
return info->nlhdr->nlmsg_flags & NLM_F_ECHO ||
- netlink_has_listeners(genl_info_net(info)->genl_sock, grp->id);
+ genl_has_listeners(family, genl_info_net(info)->genl_sock,
+ group);
}
-static void ovs_notify(struct sk_buff *skb, struct genl_info *info,
- struct genl_multicast_group *grp)
+static void ovs_notify(struct genl_family *family, struct genl_multicast_group *grp,
+ struct sk_buff *skb, struct genl_info *info)
{
- genl_notify(skb, genl_info_net(info), info->snd_portid,
- grp->id, info->nlhdr, GFP_KERNEL);
+ genl_notify(family, skb, genl_info_net(info),
+ info->snd_portid, GROUP_ID(grp), info->nlhdr, GFP_KERNEL);
}
/**
}
#endif
-static struct vport *new_vport(const struct vport_parms *);
static int queue_gso_packets(struct datapath *dp, struct sk_buff *,
+ const struct sw_flow_key *,
const struct dp_upcall_info *);
static int queue_userspace_packet(struct datapath *dp, struct sk_buff *,
+ const struct sw_flow_key *key,
const struct dp_upcall_info *);
-/* Must be called with rcu_read_lock or ovs_mutex. */
-static struct datapath *get_dp(struct net *net, int dp_ifindex)
+/* Must be called with rcu_read_lock. */
+static struct datapath *get_dp_rcu(struct net *net, int dp_ifindex)
{
- struct datapath *dp = NULL;
- struct net_device *dev;
+ struct net_device *dev = dev_get_by_index_rcu(net, dp_ifindex);
- rcu_read_lock();
- dev = dev_get_by_index_rcu(net, dp_ifindex);
if (dev) {
struct vport *vport = ovs_internal_dev_get_vport(dev);
if (vport)
- dp = vport->dp;
+ return vport->dp;
}
+
+ return NULL;
+}
+
+/* The caller must hold either ovs_mutex or rcu_read_lock to keep the
+ * returned dp pointer valid. */
+static inline struct datapath *get_dp(struct net *net, int dp_ifindex)
+{
+ struct datapath *dp;
+
+ WARN_ON_ONCE(!rcu_read_lock_held() && !lockdep_ovsl_is_held());
+ rcu_read_lock();
+ dp = get_dp_rcu(net, dp_ifindex);
rcu_read_unlock();
return dp;
return vport->ops->get_name(vport);
}
-static int get_dpifindex(struct datapath *dp)
+static int get_dpifindex(const struct datapath *dp)
{
struct vport *local;
int ifindex;
{
struct datapath *dp = container_of(rcu, struct datapath, rcu);
+ ovs_flow_tbl_destroy(&dp->table);
free_percpu(dp->stats_percpu);
release_net(ovs_dp_get_net(dp));
kfree(dp->ports);
}
/* Must be called with rcu_read_lock. */
-void ovs_dp_process_received_packet(struct vport *p, struct sk_buff *skb)
+void ovs_dp_process_packet(struct sk_buff *skb, struct sw_flow_key *key)
{
+ const struct vport *p = OVS_CB(skb)->input_vport;
struct datapath *dp = p->dp;
struct sw_flow *flow;
+ struct sw_flow_actions *sf_acts;
struct dp_stats_percpu *stats;
- struct sw_flow_key key;
u64 *stats_counter;
u32 n_mask_hit;
- int error;
stats = this_cpu_ptr(dp->stats_percpu);
- /* Extract flow from 'skb' into 'key'. */
- error = ovs_flow_extract(skb, p->port_no, &key);
- if (unlikely(error)) {
- kfree_skb(skb);
- return;
- }
-
/* Look up flow. */
- flow = ovs_flow_tbl_lookup_stats(&dp->table, &key, &n_mask_hit);
+ flow = ovs_flow_tbl_lookup_stats(&dp->table, key, skb_get_hash(skb),
+ &n_mask_hit);
if (unlikely(!flow)) {
struct dp_upcall_info upcall;
+ int error;
upcall.cmd = OVS_PACKET_CMD_MISS;
- upcall.key = &key;
upcall.userdata = NULL;
- upcall.portid = p->upcall_portid;
- ovs_dp_upcall(dp, skb, &upcall);
- consume_skb(skb);
+ upcall.portid = ovs_vport_find_upcall_portid(p, skb);
+ upcall.egress_tun_info = NULL;
+
+ error = ovs_dp_upcall(dp, skb, key, &upcall);
+ if (unlikely(error))
+ kfree_skb(skb);
+ else
+ consume_skb(skb);
+
stats_counter = &stats->n_missed;
goto out;
}
- OVS_CB(skb)->flow = flow;
- OVS_CB(skb)->pkt_key = &key;
+ ovs_flow_stats_update(flow, key->tp.flags, skb);
- ovs_flow_stats_update(OVS_CB(skb)->flow, skb);
- ovs_execute_actions(dp, skb);
+ sf_acts = rcu_dereference(flow->sf_acts);
+ ovs_execute_actions(dp, skb, key, sf_acts);
stats_counter = &stats->n_hit;
out:
/* Update datapath statistics. */
- u64_stats_update_begin(&stats->sync);
+ u64_stats_update_begin(&stats->syncp);
(*stats_counter)++;
stats->n_mask_hit += n_mask_hit;
- u64_stats_update_end(&stats->sync);
+ u64_stats_update_end(&stats->syncp);
}
-static struct genl_family dp_packet_genl_family = {
- .id = GENL_ID_GENERATE,
- .hdrsize = sizeof(struct ovs_header),
- .name = OVS_PACKET_FAMILY,
- .version = OVS_PACKET_VERSION,
- .maxattr = OVS_PACKET_ATTR_MAX,
- .netnsok = true,
- SET_PARALLEL_OPS
-};
-
int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
+ const struct sw_flow_key *key,
const struct dp_upcall_info *upcall_info)
{
struct dp_stats_percpu *stats;
}
if (!skb_is_gso(skb))
- err = queue_userspace_packet(dp, skb, upcall_info);
+ err = queue_userspace_packet(dp, skb, key, upcall_info);
else
- err = queue_gso_packets(dp, skb, upcall_info);
+ err = queue_gso_packets(dp, skb, key, upcall_info);
if (err)
goto err;
err:
stats = this_cpu_ptr(dp->stats_percpu);
- u64_stats_update_begin(&stats->sync);
+ u64_stats_update_begin(&stats->syncp);
stats->n_lost++;
- u64_stats_update_end(&stats->sync);
+ u64_stats_update_end(&stats->syncp);
return err;
}
static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
+ const struct sw_flow_key *key,
const struct dp_upcall_info *upcall_info)
{
unsigned short gso_type = skb_shinfo(skb)->gso_type;
- struct dp_upcall_info later_info;
struct sw_flow_key later_key;
struct sk_buff *segs, *nskb;
+ struct ovs_skb_cb ovs_cb;
int err;
+ ovs_cb = *OVS_CB(skb);
segs = __skb_gso_segment(skb, NETIF_F_SG, false);
+ *OVS_CB(skb) = ovs_cb;
if (IS_ERR(segs))
return PTR_ERR(segs);
+ if (segs == NULL)
+ return -EINVAL;
+
+ if (gso_type & SKB_GSO_UDP) {
+ /* The initial flow key extracted by ovs_flow_key_extract()
+ * in this case is for a first fragment, so we need to
+ * properly mark later fragments.
+ */
+ later_key = *key;
+ later_key.ip.frag = OVS_FRAG_TYPE_LATER;
+ }
/* Queue all of the segments. */
skb = segs;
do {
- err = queue_userspace_packet(dp, skb, upcall_info);
+ *OVS_CB(skb) = ovs_cb;
+ if (gso_type & SKB_GSO_UDP && skb != segs)
+ key = &later_key;
+
+ err = queue_userspace_packet(dp, skb, key, upcall_info);
if (err)
break;
- if (skb == segs && gso_type & SKB_GSO_UDP) {
- /* The initial flow key extracted by ovs_flow_extract()
- * in this case is for a first fragment, so we need to
- * properly mark later fragments.
- */
- later_key = *upcall_info->key;
- later_key.ip.frag = OVS_FRAG_TYPE_LATER;
-
- later_info = *upcall_info;
- later_info.key = &later_key;
- upcall_info = &later_info;
- }
} while ((skb = skb->next));
/* Free all of the segments. */
return err;
}
-static size_t key_attr_size(void)
-{
- return nla_total_size(4) /* OVS_KEY_ATTR_PRIORITY */
- + nla_total_size(0) /* OVS_KEY_ATTR_TUNNEL */
- + nla_total_size(8) /* OVS_TUNNEL_KEY_ATTR_ID */
- + nla_total_size(4) /* OVS_TUNNEL_KEY_ATTR_IPV4_SRC */
- + nla_total_size(4) /* OVS_TUNNEL_KEY_ATTR_IPV4_DST */
- + nla_total_size(1) /* OVS_TUNNEL_KEY_ATTR_TOS */
- + nla_total_size(1) /* OVS_TUNNEL_KEY_ATTR_TTL */
- + nla_total_size(0) /* OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT */
- + nla_total_size(0) /* OVS_TUNNEL_KEY_ATTR_CSUM */
- + nla_total_size(4) /* OVS_KEY_ATTR_IN_PORT */
- + nla_total_size(4) /* OVS_KEY_ATTR_SKB_MARK */
- + nla_total_size(12) /* OVS_KEY_ATTR_ETHERNET */
- + nla_total_size(2) /* OVS_KEY_ATTR_ETHERTYPE */
- + nla_total_size(4) /* OVS_KEY_ATTR_8021Q */
- + nla_total_size(0) /* OVS_KEY_ATTR_ENCAP */
- + nla_total_size(2) /* OVS_KEY_ATTR_ETHERTYPE */
- + nla_total_size(40) /* OVS_KEY_ATTR_IPV6 */
- + nla_total_size(2) /* OVS_KEY_ATTR_ICMPV6 */
- + nla_total_size(28); /* OVS_KEY_ATTR_ND */
-}
-
-static size_t upcall_msg_size(const struct nlattr *userdata,
+static size_t upcall_msg_size(const struct dp_upcall_info *upcall_info,
unsigned int hdrlen)
{
size_t size = NLMSG_ALIGN(sizeof(struct ovs_header))
+ nla_total_size(hdrlen) /* OVS_PACKET_ATTR_PACKET */
- + nla_total_size(key_attr_size()); /* OVS_PACKET_ATTR_KEY */
+ + nla_total_size(ovs_key_attr_size()); /* OVS_PACKET_ATTR_KEY */
/* OVS_PACKET_ATTR_USERDATA */
- if (userdata)
- size += NLA_ALIGN(userdata->nla_len);
+ if (upcall_info->userdata)
+ size += NLA_ALIGN(upcall_info->userdata->nla_len);
+
+ /* OVS_PACKET_ATTR_EGRESS_TUN_KEY */
+ if (upcall_info->egress_tun_info)
+ size += nla_total_size(ovs_tun_key_attr_size());
return size;
}
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)
{
struct ovs_header *upcall;
struct sk_buff *nskb = NULL;
- struct sk_buff *user_skb; /* to be queued to userspace */
+ struct sk_buff *user_skb = NULL; /* to be queued to userspace */
struct nlattr *nla;
struct genl_info info = {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)
+#ifdef HAVE_GENLMSG_NEW_UNICAST
.dst_sk = ovs_dp_get_net(dp)->genl_sock,
#endif
.snd_portid = upcall_info->portid,
else
hlen = skb->len;
- len = upcall_msg_size(upcall_info->userdata, hlen);
+ len = upcall_msg_size(upcall_info, hlen);
user_skb = genlmsg_new_unicast(len, &info, GFP_ATOMIC);
if (!user_skb) {
err = -ENOMEM;
upcall->dp_ifindex = dp_ifindex;
nla = nla_nest_start(user_skb, OVS_PACKET_ATTR_KEY);
- ovs_nla_put_flow(upcall_info->key, upcall_info->key, user_skb);
+ err = ovs_nla_put_flow(key, key, user_skb);
+ BUG_ON(err);
nla_nest_end(user_skb, nla);
if (upcall_info->userdata)
nla_len(upcall_info->userdata),
nla_data(upcall_info->userdata));
+ 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);
+ BUG_ON(err);
+ nla_nest_end(user_skb, nla);
+ }
+
/* Only reserve room for attribute header, packet data is added
* in skb_zerocopy() */
if (!(nla = nla_reserve(user_skb, OVS_PACKET_ATTR_PACKET, 0))) {
}
nla->nla_len = nla_attr_size(skb->len);
- skb_zerocopy(user_skb, skb, skb->len, hlen);
+ err = skb_zerocopy(user_skb, skb, skb->len, hlen);
+ if (err)
+ goto out;
/* Pad OVS_PACKET_ATTR_PACKET if linear copy was performed */
if (!(dp->user_features & OVS_DP_F_UNALIGNED)) {
((struct nlmsghdr *) user_skb->data)->nlmsg_len = user_skb->len;
err = genlmsg_unicast(ovs_dp_get_net(dp), user_skb, upcall_info->portid);
+ user_skb = NULL;
out:
+ if (err)
+ skb_tx_error(skb);
+
+ kfree_skb(user_skb);
kfree_skb(nskb);
return err;
}
struct sw_flow_actions *acts;
struct sk_buff *packet;
struct sw_flow *flow;
+ struct sw_flow_actions *sf_acts;
struct datapath *dp;
struct ethhdr *eth;
+ 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] ||
if (IS_ERR(flow))
goto err_kfree_skb;
- err = ovs_flow_extract(packet, -1, &flow->key);
+ err = ovs_flow_key_extract_userspace(a[OVS_PACKET_ATTR_KEY], packet,
+ &flow->key, log);
if (err)
goto err_flow_free;
- err = ovs_nla_get_flow_metadata(flow, a[OVS_PACKET_ATTR_KEY]);
- if (err)
- goto err_flow_free;
- acts = ovs_nla_alloc_flow_actions(nla_len(a[OVS_PACKET_ATTR_ACTIONS]));
- err = PTR_ERR(acts);
- if (IS_ERR(acts))
- goto err_flow_free;
-
err = ovs_nla_copy_actions(a[OVS_PACKET_ATTR_ACTIONS],
- &flow->key, 0, &acts);
- rcu_assign_pointer(flow->sf_acts, acts);
+ &flow->key, &acts, log);
if (err)
goto err_flow_free;
- OVS_CB(packet)->flow = flow;
- OVS_CB(packet)->pkt_key = &flow->key;
+ 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(sock_net(skb->sk), ovs_header->dp_ifindex);
+ dp = get_dp_rcu(sock_net(skb->sk), ovs_header->dp_ifindex);
err = -ENODEV;
if (!dp)
goto err_unlock;
+ input_vport = ovs_vport_rcu(dp, flow->key.phy.in_port);
+ if (!input_vport)
+ input_vport = ovs_vport_rcu(dp, OVSP_LOCAL);
+
+ if (!input_vport)
+ goto err_unlock;
+
+ OVS_CB(packet)->input_vport = input_vport;
+ sf_acts = rcu_dereference(flow->sf_acts);
+
local_bh_disable();
- err = ovs_execute_actions(dp, packet);
+ err = ovs_execute_actions(dp, packet, &flow->key, sf_acts);
local_bh_enable();
rcu_read_unlock();
}
};
-static void get_dp_stats(struct datapath *dp, struct ovs_dp_stats *stats,
+static struct genl_family dp_packet_genl_family = {
+ .id = GENL_ID_GENERATE,
+ .hdrsize = sizeof(struct ovs_header),
+ .name = OVS_PACKET_FAMILY,
+ .version = OVS_PACKET_VERSION,
+ .maxattr = OVS_PACKET_ATTR_MAX,
+ .netnsok = true,
+ .parallel_ops = true,
+ .ops = dp_packet_genl_ops,
+ .n_ops = ARRAY_SIZE(dp_packet_genl_ops),
+};
+
+static void get_dp_stats(const struct datapath *dp, struct ovs_dp_stats *stats,
struct ovs_dp_megaflow_stats *mega_stats)
{
int i;
percpu_stats = per_cpu_ptr(dp->stats_percpu, i);
do {
- start = u64_stats_fetch_begin_bh(&percpu_stats->sync);
+ start = u64_stats_fetch_begin_irq(&percpu_stats->syncp);
local_stats = *percpu_stats;
- } while (u64_stats_fetch_retry_bh(&percpu_stats->sync, start));
+ } while (u64_stats_fetch_retry_irq(&percpu_stats->syncp, start));
stats->n_hit += local_stats.n_hit;
stats->n_missed += local_stats.n_missed;
}
}
-static const struct nla_policy flow_policy[OVS_FLOW_ATTR_MAX + 1] = {
- [OVS_FLOW_ATTR_KEY] = { .type = NLA_NESTED },
- [OVS_FLOW_ATTR_ACTIONS] = { .type = NLA_NESTED },
- [OVS_FLOW_ATTR_CLEAR] = { .type = NLA_FLAG },
-};
-
-static struct genl_family dp_flow_genl_family = {
- .id = GENL_ID_GENERATE,
- .hdrsize = sizeof(struct ovs_header),
- .name = OVS_FLOW_FAMILY,
- .version = OVS_FLOW_VERSION,
- .maxattr = OVS_FLOW_ATTR_MAX,
- .netnsok = true,
- SET_PARALLEL_OPS
-};
-
-static struct genl_multicast_group ovs_dp_flow_multicast_group = {
- .name = OVS_FLOW_MCGROUP
-};
-
static size_t ovs_flow_cmd_msg_size(const struct sw_flow_actions *acts)
{
return NLMSG_ALIGN(sizeof(struct ovs_header))
- + nla_total_size(key_attr_size()) /* OVS_FLOW_ATTR_KEY */
- + nla_total_size(key_attr_size()) /* OVS_FLOW_ATTR_MASK */
+ + nla_total_size(ovs_key_attr_size()) /* OVS_FLOW_ATTR_KEY */
+ + nla_total_size(ovs_key_attr_size()) /* OVS_FLOW_ATTR_MASK */
+ nla_total_size(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 */
}
/* Called with ovs_mutex or RCU read lock. */
-static int ovs_flow_cmd_fill_info(const struct sw_flow *flow, int dp_ifindex,
- struct sk_buff *skb, u32 portid,
- u32 seq, u32 flags, u8 cmd)
+static int ovs_flow_cmd_fill_match(const struct sw_flow *flow,
+ struct sk_buff *skb)
{
- const int skb_orig_len = skb->len;
- struct nlattr *start;
- struct ovs_flow_stats stats;
- __be16 tcp_flags;
- unsigned long used;
- struct ovs_header *ovs_header;
struct nlattr *nla;
int err;
- ovs_header = genlmsg_put(skb, portid, seq, &dp_flow_genl_family, flags, cmd);
- if (!ovs_header)
- return -EMSGSIZE;
-
- ovs_header->dp_ifindex = dp_ifindex;
-
/* Fill flow key. */
nla = nla_nest_start(skb, OVS_FLOW_ATTR_KEY);
if (!nla)
- goto nla_put_failure;
+ return -EMSGSIZE;
- err = ovs_nla_put_flow(&flow->unmasked_key, &flow->unmasked_key, skb);
+ err = ovs_nla_put_flow(&flow->unmasked_key,
+ &flow->unmasked_key, skb);
if (err)
- goto error;
+ return err;
nla_nest_end(skb, nla);
+ /* Fill flow mask. */
nla = nla_nest_start(skb, OVS_FLOW_ATTR_MASK);
if (!nla)
- goto nla_put_failure;
+ return -EMSGSIZE;
err = ovs_nla_put_flow(&flow->key, &flow->mask->key, skb);
if (err)
- goto error;
-
+ return err;
nla_nest_end(skb, nla);
+ return 0;
+}
+
+/* Called with ovs_mutex or RCU read lock. */
+static int ovs_flow_cmd_fill_stats(const struct sw_flow *flow,
+ struct sk_buff *skb)
+{
+ struct ovs_flow_stats stats;
+ __be16 tcp_flags;
+ unsigned long used;
+
ovs_flow_stats_get(flow, &stats, &used, &tcp_flags);
if (used &&
nla_put_u64(skb, OVS_FLOW_ATTR_USED, ovs_flow_used_time(used)))
- goto nla_put_failure;
+ return -EMSGSIZE;
if (stats.n_packets &&
nla_put(skb, OVS_FLOW_ATTR_STATS, sizeof(struct ovs_flow_stats), &stats))
- goto nla_put_failure;
+ return -EMSGSIZE;
if ((u8)ntohs(tcp_flags) &&
nla_put_u8(skb, OVS_FLOW_ATTR_TCP_FLAGS, (u8)ntohs(tcp_flags)))
- goto nla_put_failure;
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+/* Called with ovs_mutex or RCU read lock. */
+static int ovs_flow_cmd_fill_actions(const struct sw_flow *flow,
+ struct sk_buff *skb, int skb_orig_len)
+{
+ struct nlattr *start;
+ int err;
/* 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
nla_nest_end(skb, start);
else {
if (skb_orig_len)
- goto error;
+ return err;
nla_nest_cancel(skb, start);
}
- } else if (skb_orig_len)
- goto nla_put_failure;
+ } else if (skb_orig_len) {
+ return -EMSGSIZE;
+ }
+
+ return 0;
+}
+
+/* Called with ovs_mutex or RCU read lock. */
+static int ovs_flow_cmd_fill_info(const struct sw_flow *flow, int dp_ifindex,
+ struct sk_buff *skb, u32 portid,
+ u32 seq, u32 flags, u8 cmd)
+{
+ const int skb_orig_len = skb->len;
+ struct ovs_header *ovs_header;
+ int err;
+
+ ovs_header = genlmsg_put(skb, portid, seq, &dp_flow_genl_family, flags, cmd);
+ if (!ovs_header)
+ return -EMSGSIZE;
+ ovs_header->dp_ifindex = dp_ifindex;
+
+ err = ovs_flow_cmd_fill_match(flow, skb);
+ if (err)
+ goto error;
+
+ err = ovs_flow_cmd_fill_stats(flow, skb);
+ if (err)
+ goto error;
+
+ err = ovs_flow_cmd_fill_actions(flow, skb, skb_orig_len);
+ if (err)
+ goto error;
return genlmsg_end(skb, ovs_header);
-nla_put_failure:
- err = -EMSGSIZE;
error:
genlmsg_cancel(skb, ovs_header);
return err;
{
struct sk_buff *skb;
- if (!always && !ovs_must_notify(info, &ovs_dp_flow_multicast_group))
+ if (!always && !ovs_must_notify(&dp_flow_genl_family, info,
+ GROUP_ID(&ovs_dp_flow_multicast_group)))
return NULL;
skb = genlmsg_new_unicast(ovs_flow_cmd_msg_size(acts), info, GFP_KERNEL);
}
/* Called with ovs_mutex. */
-static struct sk_buff *ovs_flow_cmd_build_info(const struct sw_flow *flow,
+static struct sk_buff *ovs_flow_cmd_build_info(struct datapath *dp,
+ const struct sw_flow *flow,
int dp_ifindex,
struct genl_info *info, u8 cmd,
bool always)
skb = ovs_flow_cmd_alloc_info(ovsl_dereference(flow->sf_acts), info,
always);
- if (!skb || IS_ERR(skb))
+ if (IS_ERR_OR_NULL(skb))
return skb;
retval = ovs_flow_cmd_fill_info(flow, dp_ifindex, skb,
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])
+ if (!a[OVS_FLOW_ATTR_KEY]) {
+ OVS_NLERR(log, "Flow key attribute not present in new flow.");
goto error;
- if (!a[OVS_FLOW_ATTR_ACTIONS])
+ }
+ if (!a[OVS_FLOW_ATTR_ACTIONS]) {
+ OVS_NLERR(log,
+ "Flow actions attribute not present in new flow.");
goto error;
+ }
/* Most of the time we need to allocate a new flow, do it before
* locking. */
/* 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;
ovs_flow_mask_key(&new_flow->key, &new_flow->unmasked_key, &mask);
/* Validate actions. */
- acts = ovs_nla_alloc_flow_actions(nla_len(a[OVS_FLOW_ATTR_ACTIONS]));
- error = PTR_ERR(acts);
- if (IS_ERR(acts))
- goto err_kfree_flow;
-
error = ovs_nla_copy_actions(a[OVS_FLOW_ATTR_ACTIONS], &new_flow->key,
- 0, &acts);
+ &acts, log);
if (error) {
- OVS_NLERR("Flow actions may not be safe on all matching packets.\n");
- goto err_kfree_acts;
+ OVS_NLERR(
+ log,
+ "Flow actions may not be safe on all matching packets."
+ );
+ goto err_kfree_flow;
}
reply = ovs_flow_cmd_alloc_info(acts, info, false);
}
/* The unmasked key has to be the same for flow updates. */
if (unlikely(!ovs_flow_cmp_unmasked_key(flow, &match))) {
- error = -EEXIST;
- goto err_unlock_ovs;
+ /* Look for any overlapping flow. */
+ flow = ovs_flow_tbl_lookup_exact(&dp->table, &match);
+ if (!flow) {
+ error = -ENOENT;
+ goto err_unlock_ovs;
+ }
}
/* Update actions. */
old_acts = ovsl_dereference(flow->sf_acts);
}
if (reply)
- ovs_notify(reply, info, &ovs_dp_flow_multicast_group);
+ ovs_notify(&dp_flow_genl_family, &ovs_dp_flow_multicast_group, reply, info);
return 0;
err_unlock_ovs:
return 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,
+ 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, log);
+ if (error) {
+ OVS_NLERR(log,
+ "Actions may not be safe on all matching packets.");
+ return ERR_PTR(error);
+ }
+
+ return acts;
+}
+
static int ovs_flow_cmd_set(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr **a = info->attrs;
struct ovs_header *ovs_header = info->userhdr;
- struct sw_flow_key key, masked_key;
+ struct sw_flow_key key;
struct sw_flow *flow;
struct sw_flow_mask mask;
struct sk_buff *reply = NULL;
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])
+ if (!a[OVS_FLOW_ATTR_KEY]) {
+ 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 = ovs_nla_alloc_flow_actions(nla_len(a[OVS_FLOW_ATTR_ACTIONS]));
- error = PTR_ERR(acts);
- if (IS_ERR(acts))
+ acts = get_flow_actions(a[OVS_FLOW_ATTR_ACTIONS], &key, &mask,
+ log);
+ if (IS_ERR(acts)) {
+ error = PTR_ERR(acts);
goto error;
-
- ovs_flow_mask_key(&masked_key, &key, &mask);
- error = ovs_nla_copy_actions(a[OVS_FLOW_ATTR_ACTIONS],
- &masked_key, 0, &acts);
- if (error) {
- OVS_NLERR("Flow actions may not be safe on all matching packets.\n");
- goto err_kfree_acts;
}
- }
- /* Can allocate before locking if have acts. */
- if (acts) {
+ /* Can allocate before locking if have acts. */
reply = ovs_flow_cmd_alloc_info(acts, info, false);
if (IS_ERR(reply)) {
error = PTR_ERR(reply);
goto err_unlock_ovs;
}
/* Check that the flow exists. */
- flow = ovs_flow_tbl_lookup(&dp->table, &key);
+ flow = ovs_flow_tbl_lookup_exact(&dp->table, &match);
if (unlikely(!flow)) {
error = -ENOENT;
goto err_unlock_ovs;
}
- /* The unmasked key has to be the same for flow updates. */
- if (unlikely(!ovs_flow_cmp_unmasked_key(flow, &match))) {
- error = -EEXIST;
- goto err_unlock_ovs;
- }
+
/* Update actions, if present. */
if (likely(acts)) {
old_acts = ovsl_dereference(flow->sf_acts);
}
} else {
/* Could not alloc without acts before locking. */
- reply = ovs_flow_cmd_build_info(flow, ovs_header->dp_ifindex,
+ reply = ovs_flow_cmd_build_info(dp, flow,
+ ovs_header->dp_ifindex,
info, OVS_FLOW_CMD_NEW, false);
if (unlikely(IS_ERR(reply))) {
error = PTR_ERR(reply);
ovs_unlock();
if (reply)
- ovs_notify(reply, info, &ovs_dp_flow_multicast_group);
+ ovs_notify(&dp_flow_genl_family, &ovs_dp_flow_multicast_group, reply, info);
if (old_acts)
ovs_nla_free_flow_actions(old_acts);
return 0;
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;
goto unlock;
}
- flow = ovs_flow_tbl_lookup(&dp->table, &key);
- if (!flow || !ovs_flow_cmp_unmasked_key(flow, &match)) {
+ flow = ovs_flow_tbl_lookup_exact(&dp->table, &match);
+ if (!flow) {
err = -ENOENT;
goto unlock;
}
- reply = ovs_flow_cmd_build_info(flow, ovs_header->dp_ifindex, info,
+ reply = ovs_flow_cmd_build_info(dp, flow, ovs_header->dp_ifindex, info,
OVS_FLOW_CMD_NEW, true);
if (IS_ERR(reply)) {
err = PTR_ERR(reply);
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;
}
err = ovs_flow_tbl_flush(&dp->table);
goto unlock;
}
- flow = ovs_flow_tbl_lookup(&dp->table, &key);
- if (unlikely(!flow || !ovs_flow_cmp_unmasked_key(flow, &match))) {
+ flow = ovs_flow_tbl_lookup_exact(&dp->table, &match);
+ if (unlikely(!flow)) {
err = -ENOENT;
goto unlock;
}
OVS_FLOW_CMD_DEL);
rcu_read_unlock();
BUG_ON(err < 0);
- ovs_notify(reply, info, &ovs_dp_flow_multicast_group);
+ ovs_notify(&dp_flow_genl_family, &ovs_dp_flow_multicast_group, reply, info);
} else {
- netlink_set_err(sock_net(skb->sk)->genl_sock, 0,
- ovs_dp_flow_multicast_group.id,
- PTR_ERR(reply));
+ genl_set_err(&dp_flow_genl_family, sock_net(skb->sk), 0,
+ GROUP_ID(&ovs_dp_flow_multicast_group), PTR_ERR(reply));
+
}
}
struct datapath *dp;
rcu_read_lock();
- dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
+ dp = get_dp_rcu(sock_net(skb->sk), ovs_header->dp_ifindex);
if (!dp) {
rcu_read_unlock();
return -ENODEV;
return skb->len;
}
+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 struct genl_ops dp_flow_genl_ops[] = {
{ .cmd = OVS_FLOW_CMD_NEW,
.flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
},
};
-static const struct nla_policy datapath_policy[OVS_DP_ATTR_MAX + 1] = {
- [OVS_DP_ATTR_NAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ - 1 },
- [OVS_DP_ATTR_UPCALL_PID] = { .type = NLA_U32 },
- [OVS_DP_ATTR_USER_FEATURES] = { .type = NLA_U32 },
-};
-
-static struct genl_family dp_datapath_genl_family = {
+static struct genl_family dp_flow_genl_family = {
.id = GENL_ID_GENERATE,
.hdrsize = sizeof(struct ovs_header),
- .name = OVS_DATAPATH_FAMILY,
- .version = OVS_DATAPATH_VERSION,
- .maxattr = OVS_DP_ATTR_MAX,
+ .name = OVS_FLOW_FAMILY,
+ .version = OVS_FLOW_VERSION,
+ .maxattr = OVS_FLOW_ATTR_MAX,
.netnsok = true,
- SET_PARALLEL_OPS
-};
-
-static struct genl_multicast_group ovs_dp_datapath_multicast_group = {
- .name = OVS_DATAPATH_MCGROUP
+ .parallel_ops = true,
+ .ops = dp_flow_genl_ops,
+ .n_ops = ARRAY_SIZE(dp_flow_genl_ops),
+ .mcgrps = &ovs_dp_flow_multicast_group,
+ .n_mcgrps = 1,
};
static size_t ovs_dp_cmd_msg_size(void)
/* Called with rcu_read_lock or ovs_mutex. */
static struct datapath *lookup_datapath(struct net *net,
- struct ovs_header *ovs_header,
+ const struct ovs_header *ovs_header,
struct nlattr *a[OVS_DP_ATTR_MAX + 1])
{
struct datapath *dp;
dp->user_features = 0;
}
-static void ovs_dp_change(struct datapath *dp, struct nlattr **a)
+static void ovs_dp_change(struct datapath *dp, struct nlattr *a[])
{
if (a[OVS_DP_ATTR_USER_FEATURES])
dp->user_features = nla_get_u32(a[OVS_DP_ATTR_USER_FEATURES]);
if (err)
goto err_free_dp;
- dp->stats_percpu = alloc_percpu(struct dp_stats_percpu);
+ dp->stats_percpu = netdev_alloc_pcpu_stats(struct dp_stats_percpu);
if (!dp->stats_percpu) {
err = -ENOMEM;
goto err_destroy_table;
parms.options = NULL;
parms.dp = dp;
parms.port_no = OVSP_LOCAL;
- parms.upcall_portid = nla_get_u32(a[OVS_DP_ATTR_UPCALL_PID]);
+ parms.upcall_portids = a[OVS_DP_ATTR_UPCALL_PID];
ovs_dp_change(dp, a);
ovs_unlock();
- ovs_notify(reply, info, &ovs_dp_datapath_multicast_group);
+ ovs_notify(&dp_datapath_genl_family, &ovs_dp_datapath_multicast_group, reply, info);
return 0;
err_destroy_ports_array:
err_destroy_percpu:
free_percpu(dp->stats_percpu);
err_destroy_table:
- ovs_flow_tbl_destroy(&dp->table, false);
+ ovs_flow_tbl_destroy(&dp->table);
err_free_dp:
release_net(ovs_dp_get_net(dp));
kfree(dp);
ovs_dp_detach_port(ovs_vport_ovsl(dp, OVSP_LOCAL));
/* RCU destroy the flow table */
- ovs_flow_tbl_destroy(&dp->table, true);
-
call_rcu(&dp->rcu, destroy_dp_rcu);
}
__dp_destroy(dp);
ovs_unlock();
- ovs_notify(reply, info, &ovs_dp_datapath_multicast_group);
+ ovs_notify(&dp_datapath_genl_family, &ovs_dp_datapath_multicast_group, reply, info);
return 0;
err_unlock_free:
BUG_ON(err < 0);
ovs_unlock();
- ovs_notify(reply, info, &ovs_dp_datapath_multicast_group);
+ ovs_notify(&dp_datapath_genl_family, &ovs_dp_datapath_multicast_group, reply, info);
return 0;
err_unlock_free:
return skb->len;
}
+static const struct nla_policy datapath_policy[OVS_DP_ATTR_MAX + 1] = {
+ [OVS_DP_ATTR_NAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ - 1 },
+ [OVS_DP_ATTR_UPCALL_PID] = { .type = NLA_U32 },
+ [OVS_DP_ATTR_USER_FEATURES] = { .type = NLA_U32 },
+};
+
static struct genl_ops dp_datapath_genl_ops[] = {
{ .cmd = OVS_DP_CMD_NEW,
.flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
},
};
-static const struct nla_policy vport_policy[OVS_VPORT_ATTR_MAX + 1] = {
- [OVS_VPORT_ATTR_NAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ - 1 },
- [OVS_VPORT_ATTR_STATS] = { .len = sizeof(struct ovs_vport_stats) },
- [OVS_VPORT_ATTR_PORT_NO] = { .type = NLA_U32 },
- [OVS_VPORT_ATTR_TYPE] = { .type = NLA_U32 },
- [OVS_VPORT_ATTR_UPCALL_PID] = { .type = NLA_U32 },
- [OVS_VPORT_ATTR_OPTIONS] = { .type = NLA_NESTED },
-};
-
-static struct genl_family dp_vport_genl_family = {
+static struct genl_family dp_datapath_genl_family = {
.id = GENL_ID_GENERATE,
.hdrsize = sizeof(struct ovs_header),
- .name = OVS_VPORT_FAMILY,
- .version = OVS_VPORT_VERSION,
- .maxattr = OVS_VPORT_ATTR_MAX,
+ .name = OVS_DATAPATH_FAMILY,
+ .version = OVS_DATAPATH_VERSION,
+ .maxattr = OVS_DP_ATTR_MAX,
.netnsok = true,
- SET_PARALLEL_OPS
-};
-
-struct genl_multicast_group ovs_dp_vport_multicast_group = {
- .name = OVS_VPORT_MCGROUP
+ .parallel_ops = true,
+ .ops = dp_datapath_genl_ops,
+ .n_ops = ARRAY_SIZE(dp_datapath_genl_ops),
+ .mcgrps = &ovs_dp_datapath_multicast_group,
+ .n_mcgrps = 1,
};
/* Called with ovs_mutex or RCU read lock. */
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_portid))
+ nla_put_string(skb, OVS_VPORT_ATTR_NAME, vport->ops->get_name(vport)))
goto nla_put_failure;
ovs_vport_get_stats(vport, &vport_stats);
&vport_stats))
goto nla_put_failure;
+ if (ovs_vport_get_upcall_portids(vport, skb))
+ goto nla_put_failure;
+
err = ovs_vport_get_options(vport, skb);
if (err == -EMSGSIZE)
goto error;
/* Called with ovs_mutex or RCU read lock. */
static struct vport *lookup_vport(struct net *net,
- struct ovs_header *ovs_header,
+ const struct ovs_header *ovs_header,
struct nlattr *a[OVS_VPORT_ATTR_MAX + 1])
{
struct datapath *dp;
parms.options = a[OVS_VPORT_ATTR_OPTIONS];
parms.dp = dp;
parms.port_no = port_no;
- parms.upcall_portid = nla_get_u32(a[OVS_VPORT_ATTR_UPCALL_PID]);
+ parms.upcall_portids = a[OVS_VPORT_ATTR_UPCALL_PID];
vport = new_vport(&parms);
err = PTR_ERR(vport);
if (IS_ERR(vport))
goto exit_unlock_free;
- err = 0;
- if (a[OVS_VPORT_ATTR_STATS])
- ovs_vport_set_stats(vport, nla_data(a[OVS_VPORT_ATTR_STATS]));
-
err = ovs_vport_cmd_fill_info(vport, reply, info->snd_portid,
info->snd_seq, 0, OVS_VPORT_CMD_NEW);
BUG_ON(err < 0);
ovs_unlock();
- ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
+ ovs_notify(&dp_vport_genl_family, &ovs_dp_vport_multicast_group, reply, info);
return 0;
exit_unlock_free:
goto exit_unlock_free;
}
- if (a[OVS_VPORT_ATTR_STATS])
- ovs_vport_set_stats(vport, nla_data(a[OVS_VPORT_ATTR_STATS]));
-
- if (a[OVS_VPORT_ATTR_UPCALL_PID])
- vport->upcall_portid = nla_get_u32(a[OVS_VPORT_ATTR_UPCALL_PID]);
+ if (a[OVS_VPORT_ATTR_UPCALL_PID]) {
+ err = ovs_vport_set_upcall_portids(vport,
+ a[OVS_VPORT_ATTR_UPCALL_PID]);
+ if (err)
+ goto exit_unlock_free;
+ }
err = ovs_vport_cmd_fill_info(vport, reply, info->snd_portid,
info->snd_seq, 0, OVS_VPORT_CMD_NEW);
BUG_ON(err < 0);
ovs_unlock();
- ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
+ ovs_notify(&dp_vport_genl_family, &ovs_dp_vport_multicast_group, reply, info);
return 0;
exit_unlock_free:
ovs_dp_detach_port(vport);
ovs_unlock();
- ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
+ ovs_notify(&dp_vport_genl_family, &ovs_dp_vport_multicast_group, reply, info);
return 0;
exit_unlock_free:
int i, j = 0;
rcu_read_lock();
- dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
+ dp = get_dp_rcu(sock_net(skb->sk), ovs_header->dp_ifindex);
if (!dp) {
rcu_read_unlock();
return -ENODEV;
return skb->len;
}
+static const struct nla_policy vport_policy[OVS_VPORT_ATTR_MAX + 1] = {
+ [OVS_VPORT_ATTR_NAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ - 1 },
+ [OVS_VPORT_ATTR_STATS] = { .len = sizeof(struct ovs_vport_stats) },
+ [OVS_VPORT_ATTR_PORT_NO] = { .type = NLA_U32 },
+ [OVS_VPORT_ATTR_TYPE] = { .type = NLA_U32 },
+ [OVS_VPORT_ATTR_UPCALL_PID] = { .type = NLA_U32 },
+ [OVS_VPORT_ATTR_OPTIONS] = { .type = NLA_NESTED },
+};
+
static struct genl_ops dp_vport_genl_ops[] = {
{ .cmd = OVS_VPORT_CMD_NEW,
.flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
},
};
-struct genl_family_and_ops {
- struct genl_family *family;
- struct genl_ops *ops;
- int n_ops;
- struct genl_multicast_group *group;
+struct genl_family dp_vport_genl_family = {
+ .id = GENL_ID_GENERATE,
+ .hdrsize = sizeof(struct ovs_header),
+ .name = OVS_VPORT_FAMILY,
+ .version = OVS_VPORT_VERSION,
+ .maxattr = OVS_VPORT_ATTR_MAX,
+ .netnsok = true,
+ .parallel_ops = true,
+ .ops = dp_vport_genl_ops,
+ .n_ops = ARRAY_SIZE(dp_vport_genl_ops),
+ .mcgrps = &ovs_dp_vport_multicast_group,
+ .n_mcgrps = 1,
};
-static const struct genl_family_and_ops dp_genl_families[] = {
- { &dp_datapath_genl_family,
- dp_datapath_genl_ops, ARRAY_SIZE(dp_datapath_genl_ops),
- &ovs_dp_datapath_multicast_group },
- { &dp_vport_genl_family,
- dp_vport_genl_ops, ARRAY_SIZE(dp_vport_genl_ops),
- &ovs_dp_vport_multicast_group },
- { &dp_flow_genl_family,
- dp_flow_genl_ops, ARRAY_SIZE(dp_flow_genl_ops),
- &ovs_dp_flow_multicast_group },
- { &dp_packet_genl_family,
- dp_packet_genl_ops, ARRAY_SIZE(dp_packet_genl_ops),
- NULL },
+static struct genl_family *dp_genl_families[] = {
+ &dp_datapath_genl_family,
+ &dp_vport_genl_family,
+ &dp_flow_genl_family,
+ &dp_packet_genl_family,
};
static void dp_unregister_genl(int n_families)
int i;
for (i = 0; i < n_families; i++)
- genl_unregister_family(dp_genl_families[i].family);
+ genl_unregister_family(dp_genl_families[i]);
}
static int dp_register_genl(void)
{
- int n_registered;
int err;
int i;
- n_registered = 0;
for (i = 0; i < ARRAY_SIZE(dp_genl_families); i++) {
- const struct genl_family_and_ops *f = &dp_genl_families[i];
- err = genl_register_family_with_ops(f->family, f->ops,
- f->n_ops);
+ err = genl_register_family(dp_genl_families[i]);
if (err)
goto error;
- n_registered++;
-
- if (f->group) {
- err = genl_register_mc_group(f->family, f->group);
- if (err)
- goto error;
- }
}
return 0;
error:
- dp_unregister_genl(n_registered);
+ dp_unregister_genl(i);
return err;
}
pr_info("Open vSwitch switching datapath %s, built "__DATE__" "__TIME__"\n",
VERSION);
- err = ovs_flow_init();
+ err = action_fifos_init();
if (err)
goto error;
+ err = ovs_flow_init();
+ if (err)
+ goto error_action_fifos_exit;
+
err = ovs_vport_init();
if (err)
goto error_flow_exit;
ovs_vport_exit();
error_flow_exit:
ovs_flow_exit();
+error_action_fifos_exit:
+ action_fifos_exit();
error:
return err;
}
rcu_barrier();
ovs_vport_exit();
ovs_flow_exit();
+ action_fifos_exit();
}
module_init(dp_init);
projects / cascardo / ovs.git / blobdiff