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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 */