ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / src / linux-headers-5.4.0-216 / include / net

#ifndef _NET_FLOW_OFFLOAD_H
#define _NET_FLOW_OFFLOAD_H

#include <linux/kernel.h>
#include <linux/list.h>
#include <net/flow_dissector.h>
#include <linux/rhashtable.h>

struct flow_match {
	struct flow_dissector	*dissector;
	void			*mask;
	void			*key;
};

struct flow_match_meta {
	struct flow_dissector_key_meta *key, *mask;
};

struct flow_match_basic {
	struct flow_dissector_key_basic *key, *mask;
};

struct flow_match_control {
	struct flow_dissector_key_control *key, *mask;
};

struct flow_match_eth_addrs {
	struct flow_dissector_key_eth_addrs *key, *mask;
};

struct flow_match_vlan {
	struct flow_dissector_key_vlan *key, *mask;
};

struct flow_match_ipv4_addrs {
	struct flow_dissector_key_ipv4_addrs *key, *mask;
};

struct flow_match_ipv6_addrs {
	struct flow_dissector_key_ipv6_addrs *key, *mask;
};

struct flow_match_ip {
	struct flow_dissector_key_ip *key, *mask;
};

struct flow_match_ports {
	struct flow_dissector_key_ports *key, *mask;
};

struct flow_match_ports_range {
	struct flow_dissector_key_ports_range *key, *mask;
};

struct flow_match_icmp {
	struct flow_dissector_key_icmp *key, *mask;
};

struct flow_match_tcp {
	struct flow_dissector_key_tcp *key, *mask;
};

struct flow_match_mpls {
	struct flow_dissector_key_mpls *key, *mask;
};

struct flow_match_enc_keyid {
	struct flow_dissector_key_keyid *key, *mask;
};

struct flow_match_enc_opts {
	struct flow_dissector_key_enc_opts *key, *mask;
};

struct flow_rule;

void flow_rule_match_meta(const struct flow_rule *rule,
			  struct flow_match_meta *out);
void flow_rule_match_basic(const struct flow_rule *rule,
			   struct flow_match_basic *out);
void flow_rule_match_control(const struct flow_rule *rule,
			     struct flow_match_control *out);
void flow_rule_match_eth_addrs(const struct flow_rule *rule,
			       struct flow_match_eth_addrs *out);
void flow_rule_match_vlan(const struct flow_rule *rule,
			  struct flow_match_vlan *out);
void flow_rule_match_cvlan(const struct flow_rule *rule,
			   struct flow_match_vlan *out);
void flow_rule_match_ipv4_addrs(const struct flow_rule *rule,
				struct flow_match_ipv4_addrs *out);
void flow_rule_match_ipv6_addrs(const struct flow_rule *rule,
				struct flow_match_ipv6_addrs *out);
void flow_rule_match_ip(const struct flow_rule *rule,
			struct flow_match_ip *out);
void flow_rule_match_ports(const struct flow_rule *rule,
			   struct flow_match_ports *out);
void flow_rule_match_ports_range(const struct flow_rule *rule,
				 struct flow_match_ports_range *out);
void flow_rule_match_tcp(const struct flow_rule *rule,
			 struct flow_match_tcp *out);
void flow_rule_match_icmp(const struct flow_rule *rule,
			  struct flow_match_icmp *out);
void flow_rule_match_mpls(const struct flow_rule *rule,
			  struct flow_match_mpls *out);
void flow_rule_match_enc_control(const struct flow_rule *rule,
				 struct flow_match_control *out);
void flow_rule_match_enc_ipv4_addrs(const struct flow_rule *rule,
				    struct flow_match_ipv4_addrs *out);
void flow_rule_match_enc_ipv6_addrs(const struct flow_rule *rule,
				    struct flow_match_ipv6_addrs *out);
void flow_rule_match_enc_ip(const struct flow_rule *rule,
			    struct flow_match_ip *out);
void flow_rule_match_enc_ports(const struct flow_rule *rule,
			       struct flow_match_ports *out);
void flow_rule_match_enc_keyid(const struct flow_rule *rule,
			       struct flow_match_enc_keyid *out);
void flow_rule_match_enc_opts(const struct flow_rule *rule,
			      struct flow_match_enc_opts *out);

enum flow_action_id {
	FLOW_ACTION_ACCEPT		= 0,
	FLOW_ACTION_DROP,
	FLOW_ACTION_TRAP,
	FLOW_ACTION_GOTO,
	FLOW_ACTION_REDIRECT,
	FLOW_ACTION_MIRRED,
	FLOW_ACTION_REDIRECT_INGRESS,
	FLOW_ACTION_MIRRED_INGRESS,
	FLOW_ACTION_VLAN_PUSH,
	FLOW_ACTION_VLAN_POP,
	FLOW_ACTION_VLAN_MANGLE,
	FLOW_ACTION_TUNNEL_ENCAP,
	FLOW_ACTION_TUNNEL_DECAP,
	FLOW_ACTION_MANGLE,
	FLOW_ACTION_ADD,
	FLOW_ACTION_CSUM,
	FLOW_ACTION_MARK,
	FLOW_ACTION_PTYPE,
	FLOW_ACTION_WAKE,
	FLOW_ACTION_QUEUE,
	FLOW_ACTION_SAMPLE,
	FLOW_ACTION_POLICE,
	FLOW_ACTION_CT,
	FLOW_ACTION_MPLS_PUSH,
	FLOW_ACTION_MPLS_POP,
	FLOW_ACTION_MPLS_MANGLE,
	NUM_FLOW_ACTIONS,
};

/* This is mirroring enum pedit_header_type definition for easy mapping between
 * tc pedit action. Legacy TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK is mapped to
 * FLOW_ACT_MANGLE_UNSPEC, which is supported by no driver.
 */
enum flow_action_mangle_base {
	FLOW_ACT_MANGLE_UNSPEC		= 0,
	FLOW_ACT_MANGLE_HDR_TYPE_ETH,
	FLOW_ACT_MANGLE_HDR_TYPE_IP4,
	FLOW_ACT_MANGLE_HDR_TYPE_IP6,
	FLOW_ACT_MANGLE_HDR_TYPE_TCP,
	FLOW_ACT_MANGLE_HDR_TYPE_UDP,
};

typedef void (*action_destr)(void *priv);

struct flow_action_entry {
	enum flow_action_id		id;
	action_destr			destructor;
	void				*destructor_priv;
	union {
		u32			chain_index;	/* FLOW_ACTION_GOTO */
		struct net_device	*dev;		/* FLOW_ACTION_REDIRECT */
		struct {				/* FLOW_ACTION_VLAN */
			u16		vid;
			__be16		proto;
			u8		prio;
		} vlan;
		struct {				/* FLOW_ACTION_PACKET_EDIT */
			enum flow_action_mangle_base htype;
			u32		offset;
			u32		mask;
			u32		val;
		} mangle;
		struct ip_tunnel_info	*tunnel;	/* FLOW_ACTION_TUNNEL_ENCAP */
		u32			csum_flags;	/* FLOW_ACTION_CSUM */
		u32			mark;		/* FLOW_ACTION_MARK */
		u16                     ptype;          /* FLOW_ACTION_PTYPE */
		struct {				/* FLOW_ACTION_QUEUE */
			u32		ctx;
			u32		index;
			u8		vf;
		} queue;
		struct {				/* FLOW_ACTION_SAMPLE */
			struct psample_group	*psample_group;
			u32			rate;
			u32			trunc_size;
			bool			truncate;
		} sample;
		struct {				/* FLOW_ACTION_POLICE */
			s64			burst;
			u64			rate_bytes_ps;
		} police;
		struct {				/* FLOW_ACTION_CT */
			int action;
			u16 zone;
		} ct;
		struct {				/* FLOW_ACTION_MPLS_PUSH */
			u32		label;
			__be16		proto;
			u8		tc;
			u8		bos;
			u8		ttl;
		} mpls_push;
		struct {				/* FLOW_ACTION_MPLS_POP */
			__be16		proto;
		} mpls_pop;
		struct {				/* FLOW_ACTION_MPLS_MANGLE */
			u32		label;
			u8		tc;
			u8		bos;
			u8		ttl;
		} mpls_mangle;
	};
};

struct flow_action {
	unsigned int			num_entries;
	struct flow_action_entry 	entries[0];
};

static inline bool flow_action_has_entries(const struct flow_action *action)
{
	return action->num_entries;
}

/**
 * flow_action_has_one_action() - check if exactly one action is present
 * @action: tc filter flow offload action
 *
 * Returns true if exactly one action is present.
 */
static inline bool flow_offload_has_one_action(const struct flow_action *action)
{
	return action->num_entries == 1;
}

#define flow_action_for_each(__i, __act, __actions)			\
        for (__i = 0, __act = &(__actions)->entries[0]; __i < (__actions)->num_entries; __act = &(__actions)->entries[++__i])

struct flow_rule {
	struct flow_match	match;
	struct flow_action	action;
};

struct flow_rule *flow_rule_alloc(unsigned int num_actions);

static inline bool flow_rule_match_key(const struct flow_rule *rule,
				       enum flow_dissector_key_id key)
{
	return dissector_uses_key(rule->match.dissector, key);
}

struct flow_stats {
	u64	pkts;
	u64	bytes;
	u64	lastused;
};

static inline void flow_stats_update(struct flow_stats *flow_stats,
				     u64 bytes, u64 pkts, u64 lastused)
{
	flow_stats->pkts	+= pkts;
	flow_stats->bytes	+= bytes;
	flow_stats->lastused	= max_t(u64, flow_stats->lastused, lastused);
}

enum flow_block_command {
	FLOW_BLOCK_BIND,
	FLOW_BLOCK_UNBIND,
};

enum flow_block_binder_type {
	FLOW_BLOCK_BINDER_TYPE_UNSPEC,
	FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS,
	FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS,
};

struct flow_block {
	struct list_head cb_list;
};

struct netlink_ext_ack;

struct flow_block_offload {
	enum flow_block_command command;
	enum flow_block_binder_type binder_type;
	bool block_shared;
	bool unlocked_driver_cb;
	struct net *net;
	struct flow_block *block;
	struct list_head cb_list;
	struct list_head *driver_block_list;
	struct netlink_ext_ack *extack;
};

enum tc_setup_type;
typedef int flow_setup_cb_t(enum tc_setup_type type, void *type_data,
			    void *cb_priv);

struct flow_block_cb {
	struct list_head	driver_list;
	struct list_head	list;
	flow_setup_cb_t		*cb;
	void			*cb_ident;
	void			*cb_priv;
	void			(*release)(void *cb_priv);
	unsigned int		refcnt;
};

struct flow_block_cb *flow_block_cb_alloc(flow_setup_cb_t *cb,
					  void *cb_ident, void *cb_priv,
					  void (*release)(void *cb_priv));
void flow_block_cb_free(struct flow_block_cb *block_cb);

struct flow_block_cb *flow_block_cb_lookup(struct flow_block *block,
					   flow_setup_cb_t *cb, void *cb_ident);

void *flow_block_cb_priv(struct flow_block_cb *block_cb);
void flow_block_cb_incref(struct flow_block_cb *block_cb);
unsigned int flow_block_cb_decref(struct flow_block_cb *block_cb);

static inline void flow_block_cb_add(struct flow_block_cb *block_cb,
				     struct flow_block_offload *offload)
{
	list_add_tail(&block_cb->list, &offload->cb_list);
}

static inline void flow_block_cb_remove(struct flow_block_cb *block_cb,
					struct flow_block_offload *offload)
{
	list_move(&block_cb->list, &offload->cb_list);
}

bool flow_block_cb_is_busy(flow_setup_cb_t *cb, void *cb_ident,
			   struct list_head *driver_block_list);

int flow_block_cb_setup_simple(struct flow_block_offload *f,
			       struct list_head *driver_list,
			       flow_setup_cb_t *cb,
			       void *cb_ident, void *cb_priv, bool ingress_only);

enum flow_cls_command {
	FLOW_CLS_REPLACE,
	FLOW_CLS_DESTROY,
	FLOW_CLS_STATS,
	FLOW_CLS_TMPLT_CREATE,
	FLOW_CLS_TMPLT_DESTROY,
};

struct flow_cls_common_offload {
	u32 chain_index;
	__be16 protocol;
	u32 prio;
	struct netlink_ext_ack *extack;
};

struct flow_cls_offload {
	struct flow_cls_common_offload common;
	enum flow_cls_command command;
	unsigned long cookie;
	struct flow_rule *rule;
	struct flow_stats stats;
	u32 classid;
};

static inline struct flow_rule *
flow_cls_offload_flow_rule(struct flow_cls_offload *flow_cmd)
{
	return flow_cmd->rule;
}

static inline void flow_block_init(struct flow_block *flow_block)
{
	INIT_LIST_HEAD(&flow_block->cb_list);
}

typedef int flow_indr_block_bind_cb_t(struct net_device *dev, void *cb_priv,
				      enum tc_setup_type type, void *type_data);

typedef void flow_indr_block_cmd_t(struct net_device *dev,
				   flow_indr_block_bind_cb_t *cb, void *cb_priv,
				   enum flow_block_command command);

struct flow_indr_block_entry {
	flow_indr_block_cmd_t *cb;
	struct list_head	list;
};

void flow_indr_add_block_cb(struct flow_indr_block_entry *entry);

void flow_indr_del_block_cb(struct flow_indr_block_entry *entry);

int __flow_indr_block_cb_register(struct net_device *dev, void *cb_priv,
				  flow_indr_block_bind_cb_t *cb,
				  void *cb_ident);

void __flow_indr_block_cb_unregister(struct net_device *dev,
				     flow_indr_block_bind_cb_t *cb,
				     void *cb_ident);

int flow_indr_block_cb_register(struct net_device *dev, void *cb_priv,
				flow_indr_block_bind_cb_t *cb, void *cb_ident);

void flow_indr_block_cb_unregister(struct net_device *dev,
				   flow_indr_block_bind_cb_t *cb,
				   void *cb_ident);

void flow_indr_block_call(struct net_device *dev,
			  struct flow_block_offload *bo,
			  enum flow_block_command command);

#endif /* _NET_FLOW_OFFLOAD_H */

[+] ..
[-] ila.h [edit]
[-] icmp.h [edit]
[-] dst.h [edit]
[-] l3mdev.h [edit]
[-] act_api.h [edit]
[-] nsh.h [edit]
[-] llc_c_st.h [edit]
[+] netfilter
[-] slhc_vj.h [edit]
[-] ipconfig.h [edit]
[-] ax88796.h [edit]
[-] inet_ecn.h [edit]
[-] inet6_connection_sock.h [edit]
[-] bpf_sk_storage.h [edit]
[-] tun_proto.h [edit]
[-] esp.h [edit]
[-] inet_frag.h [edit]
[-] tcp.h [edit]
[-] failover.h [edit]
[-] switchdev.h [edit]
[-] vsock_addr.h [edit]
[-] ieee80211_radiotap.h [edit]
[-] ip_fib.h [edit]
[-] pkt_sched.h [edit]
[-] x25device.h [edit]
[-] cfg80211.h [edit]
[-] tso.h [edit]
[-] ndisc.h [edit]
[-] psnap.h [edit]
[-] net_failover.h [edit]
[-] seg6.h [edit]
[-] gre.h [edit]
[-] sch_generic.h [edit]
[-] smc.h [edit]
[-] neighbour.h [edit]
[-] dsfield.h [edit]
[-] llc_conn.h [edit]
[-] arp.h [edit]
[-] rawv6.h [edit]
[-] ipcomp.h [edit]
[-] ipx.h [edit]
[-] page_pool.h [edit]
[-] netprio_cgroup.h [edit]
[+] sctp
[-] bond_options.h [edit]
[-] mpls_iptunnel.h [edit]
[-] tipc.h [edit]
[-] xdp.h [edit]
[-] af_ieee802154.h [edit]
[-] fou.h [edit]
[-] inetpeer.h [edit]
[-] garp.h [edit]
[-] codel_impl.h [edit]
[-] net_ratelimit.h [edit]
[-] llc_pdu.h [edit]
[-] gue.h [edit]
[-] hwbm.h [edit]
[-] Space.h [edit]
[-] route.h [edit]
[-] gen_stats.h [edit]
[-] llc.h [edit]
[-] mpls.h [edit]
[-] llc_if.h [edit]
[-] udplite.h [edit]
[-] dcbevent.h [edit]
[-] mip6.h [edit]
[-] codel_qdisc.h [edit]
[-] genetlink.h [edit]
[-] stp.h [edit]
[-] mac80211.h [edit]
[-] ethoc.h [edit]
[-] regulatory.h [edit]
[-] gtp.h [edit]
[+] 9p
[-] wimax.h [edit]
[-] seg6_hmac.h [edit]
[-] rtnh.h [edit]
[-] flow_dissector.h [edit]
[-] ip.h [edit]
[-] ip_tunnels.h [edit]
[+] iucv
[-] lib80211.h [edit]
[-] nl802154.h [edit]
[-] atmclip.h [edit]
[-] mrp.h [edit]
[-] rose.h [edit]
[-] devlink.h [edit]
[-] timewait_sock.h [edit]
[-] erspan.h [edit]
[-] netrom.h [edit]
[-] netlink.h [edit]
[-] bonding.h [edit]
[-] dst_ops.h [edit]
[-] dst_metadata.h [edit]
[-] ip_vs.h [edit]
[-] fq.h [edit]
[-] ipv6_frag.h [edit]
[-] dst_cache.h [edit]
[-] llc_c_ev.h [edit]
[-] ah.h [edit]
[-] pkt_cls.h [edit]
[-] ping.h [edit]
[-] cipso_ipv4.h [edit]
[-] af_rxrpc.h [edit]
[+] bluetooth
[-] inet_sock.h [edit]
[-] llc_c_ac.h [edit]
[-] iw_handler.h [edit]
[-] wext.h [edit]
[-] mac802154.h [edit]
[-] 6lowpan.h [edit]
[-] strparser.h [edit]
[-] af_unix.h [edit]
[-] af_vsock.h [edit]
[-] xfrm.h [edit]
[-] ip6_checksum.h [edit]
[-] nexthop.h [edit]
[-] cfg80211-wext.h [edit]
[-] seg6_local.h [edit]
[-] udp.h [edit]
[-] snmp.h [edit]
[-] netevent.h [edit]
[-] ip6_route.h [edit]
[-] raw.h [edit]
[-] secure_seq.h [edit]
[-] flow_offload.h [edit]
[-] pptp.h [edit]
[-] ip6_fib.h [edit]
[+] tc_act
[-] calipso.h [edit]
[-] busy_poll.h [edit]
[-] request_sock.h [edit]
[-] firewire.h [edit]
[-] ipv6_stubs.h [edit]
[-] p8022.h [edit]
[+] phonet
[-] fib_notifier.h [edit]
[-] kcm.h [edit]
[-] ip6_tunnel.h [edit]
[-] psample.h [edit]
[-] inet_hashtables.h [edit]
[-] drop_monitor.h [edit]
[-] sock_reuseport.h [edit]
[-] tls.h [edit]
[-] mld.h [edit]
[-] tcp_states.h [edit]
[-] ieee802154_netdev.h [edit]
[-] datalink.h [edit]
[-] codel.h [edit]
[+] nfc
[-] rtnetlink.h [edit]
[-] llc_sap.h [edit]
[-] geneve.h [edit]
[-] xdp_sock.h [edit]
[-] compat.h [edit]
[-] bond_3ad.h [edit]
[-] fq_impl.h [edit]
[-] x25.h [edit]
[-] ife.h [edit]
[-] fib_rules.h [edit]
[-] transp_v6.h [edit]
[-] ncsi.h [edit]
[-] lapb.h [edit]
[-] ipv6.h [edit]
[-] inet_common.h [edit]
[-] inet_timewait_sock.h [edit]
[-] protocol.h [edit]
[-] inet6_hashtables.h [edit]
[-] llc_s_ev.h [edit]
[-] inet_connection_sock.h [edit]
[-] bond_alb.h [edit]
[-] flow.h [edit]
[-] sock.h [edit]
[-] dsa.h [edit]
[+] netns
[-] net_namespace.h [edit]
[-] checksum.h [edit]
[-] xdp_priv.h [edit]
[-] vxlan.h [edit]
[-] cfg802154.h [edit]
[-] netlabel.h [edit]
[-] red.h [edit]
[-] scm.h [edit]
[-] rsi_91x.h [edit]
[-] llc_s_st.h [edit]
[-] gro_cells.h [edit]
[-] addrconf.h [edit]
[-] if_inet6.h [edit]
[-] udp_tunnel.h [edit]
[+] caif
[-] ax25.h [edit]
[-] dcbnl.h [edit]
[-] lag.h [edit]
[-] cls_cgroup.h [edit]
[-] lwtunnel.h [edit]
[-] llc_s_ac.h [edit]