diff options
| -rw-r--r-- | net/openvswitch/datapath.c | 185 |
1 files changed, 90 insertions, 95 deletions
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index 6bc9d94..0d407bc 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -44,11 +44,11 @@ #include <linux/netfilter_ipv4.h> #include <linux/inetdevice.h> #include <linux/list.h> -#include <linux/lockdep.h> #include <linux/openvswitch.h> #include <linux/rculist.h> #include <linux/dmi.h> -#include <linux/workqueue.h> +#include <linux/genetlink.h> +#include <net/genetlink.h> #include <net/genetlink.h> #include <net/net_namespace.h> #include <net/netns/generic.h> @@ -62,6 +62,22 @@ 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, @@ -272,16 +288,6 @@ out: 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, - .parallel_ops = true, -}; - int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb, const struct dp_upcall_info *upcall_info) { @@ -600,6 +606,18 @@ static const struct genl_ops dp_packet_genl_ops[] = { } }; +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(struct datapath *dp, struct ovs_dp_stats *stats, struct ovs_dp_megaflow_stats *mega_stats) { @@ -631,26 +649,6 @@ static void get_dp_stats(struct datapath *dp, struct ovs_dp_stats *stats, } } -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, - .parallel_ops = true, -}; - -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)) @@ -1186,7 +1184,13 @@ static int ovs_flow_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb) return skb->len; } -static const struct genl_ops dp_flow_genl_ops[] = { +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_ops dp_flow_genl_ops[] = { { .cmd = OVS_FLOW_CMD_NEW, .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */ .policy = flow_policy, @@ -1210,24 +1214,18 @@ static const struct genl_ops dp_flow_genl_ops[] = { }, }; -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, .parallel_ops = true, -}; - -static struct genl_multicast_group ovs_dp_datapath_multicast_group = { - .name = OVS_DATAPATH_MCGROUP + .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) @@ -1574,7 +1572,13 @@ static int ovs_dp_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb) return skb->len; } -static const struct genl_ops dp_datapath_genl_ops[] = { +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. */ .policy = datapath_policy, @@ -1598,27 +1602,18 @@ static const struct genl_ops dp_datapath_genl_ops[] = { }, }; -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 }, -}; - -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, .parallel_ops = true, -}; - -static struct genl_multicast_group ovs_dp_vport_multicast_group = { - .name = OVS_VPORT_MCGROUP + .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. */ @@ -1941,7 +1936,16 @@ out: return skb->len; } -static const struct genl_ops dp_vport_genl_ops[] = { +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. */ .policy = vport_policy, @@ -1965,26 +1969,25 @@ static const struct genl_ops dp_vport_genl_ops[] = { }, }; -struct genl_family_and_ops { - struct genl_family *family; - const struct genl_ops *ops; - int n_ops; - const 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 * const 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) @@ -1992,33 +1995,25 @@ 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]; - f->family->ops = f->ops; - f->family->n_ops = f->n_ops; - f->family->mcgrps = f->group; - f->family->n_mcgrps = f->group ? 1 : 0; - err = genl_register_family(f->family); + err = genl_register_family(dp_genl_families[i]); if (err) goto error; - n_registered++; } return 0; error: - dp_unregister_genl(n_registered); + dp_unregister_genl(i); return err; } |