This is xnu-11215.1.10. See this file in:
/*
* Copyright (c) 2015-2023 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _SKYWALK_NEXUS_FLOWSWITCH_FSWVAR_H_
#define _SKYWALK_NEXUS_FLOWSWITCH_FSWVAR_H_
#include <skywalk/os_skywalk_private.h>
#include <skywalk/nexus/flowswitch/nx_flowswitch.h>
#include <skywalk/nexus/flowswitch/flow/flow_var.h>
#include <net/if_var.h>
#include <net/network_agent.h>
#include <net/necp.h>
#include <net/pktap.h>
#define FSW_VP_DEV 0 /* device port */
#define FSW_VP_HOST 1 /* host port (MS) */
#define FSW_VP_USER_MIN 2 /* start of user vp port num */
#define FSW_VP_USER_MAX NX_FSW_VP_MAX /* end of user vp port num */
/* max flush batch size for device port */
#if !XNU_TARGET_OS_OSX
#define FSW_VP_DEV_BATCH_MAX 16
#else /* XNU_TARGET_OS_OSX */
#define FSW_VP_DEV_BATCH_MAX 32
#endif /* XNU_TARGET_OS_OSX */
#define FSW_REAP_THREADNAME "skywalk_fsw_reap_%s%s"
struct fsw_ip_frag_mgr; /* forward declaration */
extern uint32_t fsw_ip_reass;
struct pktq;
#define FSW_DETACHF_DETACHING 0x10000000 /* detach in progress */
#define FSW_DETACHF_DETACHED 0x20000000 /* detached */
#define FSW_REAPF_RUNNING 0x00000001 /* thread is running */
#define FSW_REAPF_TERMINATEBLOCK 0x20000000 /* blocked waiting terminate */
#define FSW_REAPF_TERMINATING 0x40000000 /* thread is terminating */
#define FSW_REAPF_TERMINATED 0x80000000 /* thread is terminated */
extern kern_allocation_name_t skmem_tag_fsw_ports;
extern kern_allocation_name_t skmem_tag_fsw_ft;
extern kern_allocation_name_t skmem_tag_fsw_fb_hash;
extern kern_allocation_name_t skmem_tag_fsw_fob_hash;
extern kern_allocation_name_t skmem_tag_fsw_frb_hash;
extern kern_allocation_name_t skmem_tag_fsw_frib_hash;
extern kern_allocation_name_t skmem_tag_fsw_frag_mgr;
__BEGIN_DECLS
// generic
extern void fsw_init(void);
extern void fsw_uninit(void);
extern struct nx_flowswitch * fsw_alloc(zalloc_flags_t);
extern void fsw_free(struct nx_flowswitch *fsw);
extern int fsw_grow(struct nx_flowswitch *fsw, uint32_t grow);
extern int fsw_port_find(struct nx_flowswitch *fsw, nexus_port_t first,
nexus_port_t last, nexus_port_t *nx_port);
extern int fsw_port_bind(struct nx_flowswitch *fsw, nexus_port_t nx_port,
struct nxbind *nxb0);
extern int fsw_port_unbind(struct nx_flowswitch *fsw, nexus_port_t nx_port);
extern int fsw_port_na_defunct(struct nx_flowswitch *fsw,
struct nexus_vp_adapter *vpna);
extern size_t fsw_mib_get(struct nx_flowswitch *fsw,
struct nexus_mib_filter *filter, void *__sized_by(len)out, size_t len, struct proc *p);
extern int fsw_attach_vp(struct kern_nexus *nx, struct kern_channel *ch,
struct chreq *chr, struct nxbind *nxb, struct proc *p,
struct nexus_vp_adapter **vpna);
extern int fsw_ctl(struct kern_nexus *nx, nxcfg_cmd_t nc_cmd, struct proc *p,
void *data);
extern int fsw_ctl_detach(struct kern_nexus *nx, struct proc *p,
struct nx_spec_req *nsr);
extern boolean_t fsw_should_drop_packet(boolean_t is_input, sa_family_t af,
uint8_t proto, const char *ifname);
extern int fsw_port_alloc(struct nx_flowswitch *fsw, struct nxbind *nxb,
struct nexus_vp_adapter **vpna, nexus_port_t nx_port, struct proc *p,
boolean_t ifattach, boolean_t host);
extern void fsw_port_free(struct nx_flowswitch *fsw,
struct nexus_vp_adapter *vpna, nexus_port_t nx_port, boolean_t defunct);
extern int fsw_port_grow(struct nx_flowswitch *fsw, uint32_t num_ports);
extern int fsw_port_na_activate(struct nx_flowswitch *fsw,
struct nexus_vp_adapter *vpna, na_activate_mode_t mode);
extern boolean_t fsw_detach_barrier_add(struct nx_flowswitch *fsw);
extern void fsw_detach_barrier_remove(struct nx_flowswitch *fsw);
// vp related
extern int fsw_vp_na_activate(struct nexus_adapter *na,
na_activate_mode_t mode);
extern int fsw_vp_na_krings_create(struct nexus_adapter *na,
struct kern_channel *ch);
extern void fsw_vp_na_krings_delete(struct nexus_adapter *na,
struct kern_channel *ch, boolean_t defunct);
extern int fsw_vp_na_txsync(struct __kern_channel_ring *kring,
struct proc *p, uint32_t flags);
extern int fsw_vp_na_rxsync(struct __kern_channel_ring *kring,
struct proc *p, uint32_t flags);
extern int fsw_vp_na_create(struct kern_nexus *nx, struct chreq *chr,
struct proc *p, struct nexus_vp_adapter **ret);
extern void fsw_vp_channel_error_stats_fold(struct fsw_stats *fs,
struct __nx_stats_channel_errors *es);
extern errno_t fsw_vp_na_channel_event(struct nx_flowswitch *fsw,
uint32_t nx_port_id, struct __kern_channel_event *__sized_by(event_len)event,
uint16_t event_len);
// classq related
extern void fsw_classq_setup(struct nx_flowswitch *fsw,
struct nexus_adapter *hostna);
extern void fsw_classq_teardown(struct nx_flowswitch *fsw,
struct nexus_adapter *hostna);
extern struct mbuf * fsw_classq_kpkt_to_mbuf(struct nx_flowswitch *fsw,
struct __kern_packet *pkt);
// routing related
extern int fsw_generic_resolve(struct nx_flowswitch *fsw, struct flow_route *fr,
struct __kern_packet *pkt);
// data plane related
extern int fsw_dp_init(void);
extern void fsw_dp_uninit(void);
extern int fsw_dp_ctor(struct nx_flowswitch *fsw);
extern void fsw_dp_dtor(struct nx_flowswitch *fsw);
extern void fsw_ring_flush(struct nx_flowswitch *fsw,
struct __kern_channel_ring *skring, struct proc *p);
extern void fsw_ring_enqueue_tail_drop(struct nx_flowswitch *fsw,
struct __kern_channel_ring *ring, struct pktq *pktq);
extern boolean_t fsw_detach_barrier_add(struct nx_flowswitch *fsw);
extern void fsw_detach_barrier_remove(struct nx_flowswitch *fsw);
extern void fsw_linger_insert(struct flow_entry *fsw);
extern void fsw_linger_purge(struct nx_flowswitch *fsw);
extern void fsw_reap_sched(struct nx_flowswitch *fsw);
extern int fsw_dev_input_netem_dequeue(void *handle,
pktsched_pkt_t *__counted_by(n_pkts) pkts, uint32_t n_pkts);
extern void fsw_snoop(struct nx_flowswitch *fsw, struct flow_entry *fe,
struct pktq *pktq, bool input);
extern void fsw_receive(struct nx_flowswitch *fsw, struct pktq *pktq);
extern void dp_flow_tx_process(struct nx_flowswitch *fsw,
struct flow_entry *fe, uint32_t flags);
extern void dp_flow_rx_process(struct nx_flowswitch *fsw,
struct flow_entry *fe, struct pktq *rx_pkts, uint32_t rx_bytes,
uint32_t flags);
#if (DEVELOPMENT || DEBUG)
extern int fsw_rps_set_nthreads(struct nx_flowswitch* fsw, uint32_t n);
#endif /* !DEVELOPMENT && !DEBUG */
extern uint32_t fsw_tx_batch;
extern uint32_t fsw_rx_batch;
extern uint32_t fsw_chain_enqueue;
extern uint32_t fsw_use_dual_sized_pool;
// flow related
extern struct flow_owner * fsw_flow_add(struct nx_flowswitch *fsw,
struct nx_flow_req *req0, int *error);
extern int fsw_flow_del(struct nx_flowswitch *fsw, struct nx_flow_req *req,
bool nolinger, void *params);
extern int fsw_flow_config(struct nx_flowswitch *fsw, struct nx_flow_req *req);
extern void fsw_flow_abort_tcp(struct nx_flowswitch *fsw, struct flow_entry *fe,
struct __kern_packet *pkt);
extern void fsw_flow_abort_quic(struct flow_entry *fe, uint8_t *token);
extern struct __kern_channel_ring * fsw_flow_get_rx_ring(struct nx_flowswitch *fsw,
struct flow_entry *fe);
extern bool dp_flow_rx_route_process(struct nx_flowswitch *fsw,
struct flow_entry *fe);
// stats related
extern void fsw_fold_stats(struct nx_flowswitch *fsw, void *data,
nexus_stats_type_t type);
// netagent related
extern int fsw_netagent_add_remove(struct kern_nexus *nx, boolean_t add);
extern void fsw_netagent_update(struct kern_nexus *nx);
extern int fsw_netagent_register(struct nx_flowswitch *fsw, struct ifnet *ifp);
extern void fsw_netagent_unregister(struct nx_flowswitch *fsw,
struct ifnet *ifp);
// interface related
extern int fsw_ip_setup(struct nx_flowswitch *fsw, struct ifnet *ifp);
extern int fsw_cellular_setup(struct nx_flowswitch *fsw, struct ifnet *ifp);
extern int fsw_ethernet_setup(struct nx_flowswitch *fsw, struct ifnet *ifp);
extern void fsw_classq_setup(struct nx_flowswitch *fsw,
struct nexus_adapter *hostna);
extern void fsw_classq_teardown(struct nx_flowswitch *fsw,
struct nexus_adapter *hostna);
extern void fsw_qos_mark(struct nx_flowswitch *fsw, struct flow_entry *fe,
struct __kern_packet *pkt);
extern boolean_t fsw_qos_default_restricted(void);
extern struct mbuf * fsw_classq_kpkt_to_mbuf(struct nx_flowswitch *fsw,
struct __kern_packet *pkt);
extern sa_family_t fsw_ip_demux(struct nx_flowswitch *, struct __kern_packet *);
// fragment reassembly related
extern struct fsw_ip_frag_mgr * fsw_ip_frag_mgr_create(
struct nx_flowswitch *fsw, struct ifnet *ifp, size_t f_limit);
extern void fsw_ip_frag_mgr_destroy(struct fsw_ip_frag_mgr *mgr);
extern int fsw_ip_frag_reass_v4(struct fsw_ip_frag_mgr *mgr,
struct __kern_packet **pkt, struct ip *ip4, uint16_t *nfrags,
uint16_t *tlen);
extern int fsw_ip_frag_reass_v6(struct fsw_ip_frag_mgr *mgr,
struct __kern_packet **pkt, struct ip6_hdr *ip6, struct ip6_frag *ip6f,
uint16_t *nfrags, uint16_t *tlen);
__END_DECLS
__attribute__((always_inline))
static inline void
fsw_snoop_and_dequeue(struct flow_entry *fe, struct pktq *target,
struct pktq *source, bool input)
{
if (pktap_total_tap_count != 0) {
fsw_snoop(fe->fe_fsw, fe, source, input);
}
KPKTQ_CONCAT(target, source);
}
#define FSW_STATS_VAL(x) STATS_VAL(&fsw->fsw_stats, x)
#define FSW_STATS_INC(x) STATS_INC(&fsw->fsw_stats, x)
#define FSW_STATS_ADD(x, n) STATS_ADD(&fsw->fsw_stats, x, n)
#endif /* _SKYWALK_NEXUS_FLOWSWITCH_FSWVAR_H_ */