1/*
2 * Copyright (c) 2000-2021 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
29/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
30/*
31 * Copyright (c) 1982, 1986, 1993
32 * The Regents of the University of California. All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. All advertising materials mentioning features or use of this software
43 * must display the following acknowledgement:
44 * This product includes software developed by the University of
45 * California, Berkeley and its contributors.
46 * 4. Neither the name of the University nor the names of its contributors
47 * may be used to endorse or promote products derived from this software
48 * without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 * SUCH DAMAGE.
61 *
62 * @(#)protosw.h 8.1 (Berkeley) 6/2/93
63 * $FreeBSD: src/sys/sys/protosw.h,v 1.28.2.2 2001/07/03 11:02:01 ume Exp $
64 */
65
66#ifndef _SYS_PROTOSW_H_
67#define _SYS_PROTOSW_H_
68
69#include <sys/appleapiopts.h>
70#include <sys/cdefs.h>
71
72__ASSUME_PTR_ABI_SINGLE_BEGIN
73
74/* XXX: this will go away */
75#define PR_SLOWHZ 2 /* 2 slow timeouts per second */
76
77/*
78 * The arguments to the ctlinput routine are
79 * (*protosw[].pr_ctlinput)(cmd, sa, arg, ifnet);
80 * where `cmd' is one of the commands below, `sa' is a pointer to a sockaddr,
81 * `arg' is a `void *' argument used within a protocol family (typically
82 * that's a `struct ipctlparam *') and `ifp' is a pointer to the network interface.
83 */
84#define PRC_IFDOWN 0 /* interface transition */
85#define PRC_ROUTEDEAD 1 /* select new route if possible ??? */
86#define PRC_IFUP 2 /* interface has come back up */
87#define PRC_QUENCH2 3 /* DEC congestion bit says slow down */
88#define PRC_QUENCH 4 /* some one said to slow down */
89#define PRC_MSGSIZE 5 /* message size forced drop */
90#define PRC_HOSTDEAD 6 /* host appears to be down */
91#define PRC_HOSTUNREACH 7 /* deprecated (use PRC_UNREACH_HOST) */
92#define PRC_UNREACH_NET 8 /* no route to network */
93#define PRC_UNREACH_HOST 9 /* no route to host */
94#define PRC_UNREACH_PROTOCOL 10 /* dst says bad protocol */
95#define PRC_UNREACH_PORT 11 /* bad port # */
96/* was PRC_UNREACH_NEEDFRAG 12 (use PRC_MSGSIZE) */
97#define PRC_UNREACH_SRCFAIL 13 /* source route failed */
98#define PRC_REDIRECT_NET 14 /* net routing redirect */
99#define PRC_REDIRECT_HOST 15 /* host routing redirect */
100#define PRC_REDIRECT_TOSNET 16 /* redirect for type of service & net */
101#define PRC_REDIRECT_TOSHOST 17 /* redirect for tos & host */
102#define PRC_TIMXCEED_INTRANS 18 /* packet lifetime expired in transit */
103#define PRC_TIMXCEED_REASS 19 /* lifetime expired on reass q */
104#define PRC_PARAMPROB 20 /* header incorrect */
105#define PRC_UNREACH_ADMIN_PROHIB 21 /* packet administrativly prohibited */
106
107#define PRC_NCMDS 22
108
109#define PRC_IS_REDIRECT(cmd) \
110 ((cmd) >= PRC_REDIRECT_NET && (cmd) <= PRC_REDIRECT_TOSHOST)
111
112#ifdef BSD_KERNEL_PRIVATE
113#include <sys/eventhandler.h>
114#endif
115
116#ifdef KERNEL_PRIVATE
117#include <sys/socket.h>
118#include <sys/socketvar.h>
119#include <sys/queue.h>
120#include <kern/locks.h>
121
122
123/*
124 * argument type for the 3rd arg of pr_ctlinput()
125 * should be consulted only with AF_INET family.
126 *
127 * IPv4 ICMP IPv4 [exthdrs] finalhdr payload
128 * ^ ^ ^ ^
129 * | | | ipc_off
130 * | | ipc_icmp_ip
131 * | ipc_icmp
132 * ipc_m
133 *
134 */
135struct ipctlparam {
136 struct ip *ipc_icmp_ip; /* ip header of target packet. Must be the first field */
137 struct mbuf *ipc_m; /* start of mbuf chain */
138 struct icmp *ipc_icmp; /* icmp header of target packet */
139 size_t ipc_off; /* offset of the target proto header */
140};
141
142/* Forward declare these structures referenced from prototypes below. */
143struct mbuf;
144struct proc;
145struct sockaddr;
146struct socket;
147struct sockopt;
148struct socket_filter;
149struct uio;
150struct ifnet;
151#ifdef XNU_KERNEL_PRIVATE
152struct domain_old;
153struct proc;
154#endif /* XNU_KERNEL_PRIVATE */
155
156#pragma pack(4)
157
158#ifdef XNU_KERNEL_PRIVATE
159/*
160 * Legacy protocol switch table.
161 *
162 * NOTE: Do not modify this structure, as there are modules outside of xnu
163 * which rely on the size and layout for binary compatibility. This structure
164 * is simply used by the exported net_{add,del}_proto_old, pffindproto_old
165 * routines, and by the domain_old structure. Internally, protocol switch
166 * tables are stored in the private variant of protosw defined down below.
167 */
168struct protosw_old {
169#else
170struct protosw {
171#endif /* !XNU_KERNEL_PRIVATE */
172 short pr_type; /* socket type used for */
173 struct domain *pr_domain; /* domain protocol a member of */
174 short pr_protocol; /* protocol number */
175 unsigned int pr_flags; /* see below */
176 /*
177 * protocol-protocol hooks
178 */
179 void (*pr_input) /* input to protocol (from below) */
180 (struct mbuf *, int len);
181 int (*pr_output) /* output to protocol (from above) */
182 (struct mbuf *m, struct socket *so);
183 void (*pr_ctlinput) /* control input (from below) */
184 (int, struct sockaddr *, void *, struct ifnet *);
185 int (*pr_ctloutput) /* control output (from above) */
186 (struct socket *, struct sockopt *);
187 /*
188 * user-protocol hook
189 */
190 void *pr_ousrreq;
191 /*
192 * utility hooks
193 */
194 void (*pr_init)(void); /* initialization hook */
195 void (*pr_unused)(void); /* placeholder - fasttimo is removed */
196 void (*pr_unused2)(void); /* placeholder - slowtimo is removed */
197 void (*pr_drain)(void); /* flush any excess space possible */
198 int (*pr_sysctl) /* sysctl for protocol */
199 (int *, u_int, void *, size_t *, void *, size_t);
200#ifdef XNU_KERNEL_PRIVATE
201 struct pr_usrreqs_old *pr_usrreqs; /* supersedes pr_usrreq() */
202#else
203 struct pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */
204#endif /* !XNU_KERNEL_PRIVATE */
205 int (*pr_lock) /* lock function for protocol */
206 (struct socket *so, int refcnt, void *debug);
207 int (*pr_unlock) /* unlock for protocol */
208 (struct socket *so, int refcnt, void *debug);
209 lck_mtx_t * __single (*pr_getlock) /* retrieve protocol lock */
210 (struct socket *so, int flags);
211 /*
212 * Implant hooks
213 */
214 TAILQ_HEAD(, socket_filter) pr_filter_head;
215#ifdef XNU_KERNEL_PRIVATE
216 struct protosw_old *pr_next; /* chain for domain */
217#else
218 struct protosw *pr_next; /* chain for domain */
219#endif /* !XNU_KERNEL_PRIVATE */
220 u_int32_t reserved[1]; /* padding for future use */
221};
222
223#pragma pack()
224
225#ifdef XNU_KERNEL_PRIVATE
226/*
227 * Protocol switch table.
228 *
229 * Each protocol has a handle initializing one of these structures,
230 * which is used for protocol-protocol and system-protocol communication.
231 *
232 * A protocol is called through the pr_init entry before any other.
233 * The system will call the pr_drain entry if it is low on space and this
234 * should throw away any non-critical data.
235 *
236 * Protocols pass data between themselves as chains of mbufs using
237 * the pr_input and pr_output hooks. Pr_input passes data up (towards
238 * the users) and pr_output passes it down (towards the interfaces); control
239 * information passes up and down on pr_ctlinput and pr_ctloutput.
240 * The protocol is responsible for the space occupied by any the
241 * arguments to these entries and must dispose it.
242 *
243 * The userreq routine interfaces protocols to the system and is
244 * described below.
245 *
246 * After a protocol is attached, its pr_domain will be set to the domain
247 * which the protocol belongs to, and its pr_protosw will be set to the
248 * address of the protosw instance. The latter is useful for finding
249 * the real/original protosw instance, in the event so_proto is altered
250 * to point to an alternative/derivative protosw. E.g. the list of
251 * socket filters is only applicable on the original protosw instance.
252 *
253 * Internal, private and extendable representation of protosw.
254 */
255struct protosw {
256 TAILQ_ENTRY(protosw) pr_entry; /* chain for domain */
257 struct domain *pr_domain; /* domain protocol a member of */
258 struct protosw *pr_protosw; /* pointer to self */
259 u_int16_t pr_type; /* socket type used for */
260 u_int16_t pr_protocol; /* protocol number */
261 u_int32_t pr_flags; /* see below */
262 /*
263 * protocol-protocol hooks
264 */
265 void (*pr_input) /* input to protocol (from below) */
266 (struct mbuf *, int len);
267 int (*pr_output) /* output to protocol (from above) */
268 (struct mbuf *m, struct socket *so);
269 void (*pr_ctlinput) /* control input (from below) */
270 (int, struct sockaddr *, void *, struct ifnet *);
271 int (*pr_ctloutput) /* control output (from above) */
272 (struct socket *, struct sockopt *);
273 /*
274 * user-protocol hook
275 */
276 struct pr_usrreqs *pr_usrreqs; /* user request; see list below */
277 /*
278 * utility hooks
279 */
280 void (*pr_init) /* initialization hook */
281 (struct protosw *, struct domain *);
282 void (*pr_drain)(void); /* flush any excess space possible */
283 int (*pr_sysctl) /* sysctl for protocol */
284 (int *, u_int, void *, size_t *, void *, size_t);
285 int (*pr_lock) /* lock function for protocol */
286 (struct socket *so, int refcnt, void *debug);
287 int (*pr_unlock) /* unlock for protocol */
288 (struct socket *so, int refcnt, void *debug);
289 lck_mtx_t * __single (*pr_getlock) /* retrieve protocol lock */
290 (struct socket *so, int flags);
291 /*
292 * misc
293 */
294 TAILQ_HEAD(, socket_filter) pr_filter_head;
295 struct protosw_old *pr_old;
296
297 void (*pr_update_last_owner) /* update last socket owner */
298 (struct socket *so, struct proc *p, struct proc *ep);
299
300 void (*pr_copy_last_owner) /* copy last socket from listener */
301 (struct socket *so, struct socket *head);
302};
303
304/*
305 * Values for the flags argument of pr_getlock
306 */
307#define PR_F_WILLUNLOCK 0x01 /* Will unlock (e.g., msleep) after the pr_getlock call */
308
309#endif /* XNU_KERNEL_PRIVATE */
310
311/*
312 * Values for pr_flags.
313 * PR_ADDR requires PR_ATOMIC;
314 * PR_ADDR and PR_CONNREQUIRED are mutually exclusive.
315 * PR_IMPLOPCL means that the protocol allows sendto without prior connect,
316 * and the protocol understands the MSG_EOF flag. The first property is
317 * is only relevant if PR_CONNREQUIRED is set (otherwise sendto is allowed
318 * anyhow).
319 */
320#define PR_ATOMIC 0x01 /* exchange atomic messages only */
321#define PR_ADDR 0x02 /* addresses given with messages */
322#define PR_CONNREQUIRED 0x04 /* connection required by protocol */
323#define PR_WANTRCVD 0x08 /* want PRU_RCVD calls */
324#define PR_RIGHTS 0x10 /* passes capabilities */
325#define PR_IMPLOPCL 0x20 /* implied open/close */
326#define PR_LASTHDR 0x40 /* enforce ipsec policy; last header */
327#define PR_PROTOLOCK 0x80 /* protocol takes care of it's own locking */
328#define PR_PCBLOCK 0x100 /* protocol supports per pcb locking */
329#define PR_DISPOSE 0x200 /* protocol requires late lists disposal */
330#ifdef BSD_KERNEL_PRIVATE
331#define PR_INITIALIZED 0x400 /* protocol has been initialized */
332#define PR_ATTACHED 0x800 /* protocol is attached to a domain */
333#define PR_MULTICONN 0x1000 /* supports multiple connect calls */
334#define PR_EVCONNINFO 0x2000 /* protocol generates conninfo event */
335#define PR_PRECONN_WRITE 0x4000 /* protocol supports preconnect write */
336#define PR_DATA_IDEMPOTENT 0x8000 /* protocol supports idempotent data at connectx-time */
337#define PR_OLD 0x10000000 /* added via net_add_proto */
338
339/* pseudo-public domain flags */
340#define PRF_USERFLAGS \
341 (PR_ATOMIC|PR_ADDR|PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS| \
342 PR_IMPLOPCL|PR_LASTHDR|PR_PROTOLOCK|PR_PCBLOCK|PR_DISPOSE)
343#endif /* BSD_KERNEL_PRIVATE */
344
345#ifdef BSD_KERNEL_PRIVATE
346#if SKYWALK
347struct protoctl_ev_val {
348 uint32_t val;
349 uint32_t tcp_seq_number;
350};
351
352extern void
353protoctl_event_enqueue_nwk_wq_entry(struct ifnet *ifp, struct sockaddr *p_laddr,
354 struct sockaddr *p_raddr, uint16_t lport, uint16_t rport, uint8_t protocol,
355 uint32_t protoctl_event_code, struct protoctl_ev_val *p_protoctl_ev_val);
356
357struct protoctl_ev_val;
358/* Proto event declarations */
359extern struct eventhandler_lists_ctxt protoctl_evhdlr_ctxt;
360typedef void (*protoctl_event_fn)(struct eventhandler_entry_arg, struct ifnet *,
361 struct sockaddr *, struct sockaddr*, uint16_t, uint16_t, uint8_t, uint32_t,
362 struct protoctl_ev_val *);
363EVENTHANDLER_DECLARE(protoctl_event, protoctl_event_fn);
364#endif /* SKYWALK */
365#ifdef PRCREQUESTS
366char *prcrequests[] = {
367 "IFDOWN", "ROUTEDEAD", "IFUP", "DEC-BIT-QUENCH2",
368 "QUENCH", "MSGSIZE", "HOSTDEAD", "#7",
369 "NET-UNREACH", "HOST-UNREACH", "PROTO-UNREACH", "PORT-UNREACH",
370 "#12", "SRCFAIL-UNREACH", "NET-REDIRECT", "HOST-REDIRECT",
371 "TOSNET-REDIRECT", "TOSHOST-REDIRECT", "TX-INTRANS", "TX-REASS",
372 "PARAMPROB", "ADMIN-UNREACH"
373};
374#endif /* PRCREQUESTS */
375
376/*
377 * The arguments to ctloutput are:
378 * (*protosw[].pr_ctloutput)(req, so, level, optname, optval, p);
379 * req is one of the actions listed below, so is a (struct socket *),
380 * level is an indication of which protocol layer the option is intended.
381 * optname is a protocol dependent socket option request,
382 * optval is a pointer to a mbuf-chain pointer, for value-return results.
383 * The protocol is responsible for disposal of the mbuf chain *optval
384 * if supplied,
385 * the caller is responsible for any space held by *optval, when returned.
386 * A non-zero return from usrreq gives an
387 * UNIX error number which should be passed to higher level software.
388 */
389#define PRCO_GETOPT 0
390#define PRCO_SETOPT 1
391
392#define PRCO_NCMDS 2
393
394#ifdef PRCOREQUESTS
395char *prcorequests[] = {
396 "GETOPT", "SETOPT",
397};
398#endif /* PRCOREQUESTS */
399
400/*
401 * In earlier BSD network stacks, a single pr_usrreq() function pointer was
402 * invoked with an operation number indicating what operation was desired.
403 * We now provide individual function pointers which protocols can implement,
404 * which offers a number of benefits (such as type checking for arguments).
405 * These older constants are still present in order to support TCP debugging.
406 */
407#define PRU_ATTACH 0 /* attach protocol to up */
408#define PRU_DETACH 1 /* detach protocol from up */
409#define PRU_BIND 2 /* bind socket to address */
410#define PRU_LISTEN 3 /* listen for connection */
411#define PRU_CONNECT 4 /* establish connection to peer */
412#define PRU_ACCEPT 5 /* accept connection from peer */
413#define PRU_DISCONNECT 6 /* disconnect from peer */
414#define PRU_SHUTDOWN 7 /* won't send any more data */
415#define PRU_RCVD 8 /* have taken data; more room now */
416#define PRU_SEND 9 /* send this data */
417#define PRU_ABORT 10 /* abort (fast DISCONNECT, DETATCH) */
418#define PRU_CONTROL 11 /* control operations on protocol */
419#define PRU_SENSE 12 /* return status into m */
420#define PRU_RCVOOB 13 /* retrieve out of band data */
421#define PRU_SENDOOB 14 /* send out of band data */
422#define PRU_SOCKADDR 15 /* fetch socket's address */
423#define PRU_PEERADDR 16 /* fetch peer's address */
424#define PRU_CONNECT2 17 /* connect two sockets */
425/* begin for protocols internal use */
426#define PRU_FASTTIMO 18 /* 200ms timeout */
427#define PRU_SLOWTIMO 19 /* 500ms timeout */
428#define PRU_PROTORCV 20 /* receive from below */
429#define PRU_PROTOSEND 21 /* send to below */
430/* end for protocol's internal use */
431#define PRU_SEND_EOF 22 /* send and close */
432#define PRU_NREQ 22
433
434#ifdef PRUREQUESTS
435char *prurequests[] = {
436 "ATTACH", "DETACH", "BIND", "LISTEN",
437 "CONNECT", "ACCEPT", "DISCONNECT", "SHUTDOWN",
438 "RCVD", "SEND", "ABORT", "CONTROL",
439 "SENSE", "RCVOOB", "SENDOOB", "SOCKADDR",
440 "PEERADDR", "CONNECT2", "FASTTIMO", "SLOWTIMO",
441 "PROTORCV", "PROTOSEND", "SEND_EOF",
442};
443#endif /* PRUREQUESTS */
444#endif /* BSD_KERNEL_PRIVATE */
445
446struct stat;
447struct ucred;
448struct uio;
449struct recv_msg_elem;
450
451#ifdef XNU_KERNEL_PRIVATE
452/*
453 * Legacy user-protocol hooks.
454 *
455 * NOTE: Do not modify this structure, as there are modules outside of xnu
456 * which rely on the size and layout for binary compatibility. This structure
457 * is simply used by the protosw_old structure. Internally, user-protocol
458 * hooks use the private variant of pr_usrreqs defined down below.
459 */
460struct pr_usrreqs_old {
461#else
462struct pr_usrreqs {
463#endif /* !XNU_KERNEL_PRIVATE */
464 int (*pru_abort)(struct socket *so);
465 int (*pru_accept)(struct socket *so, struct sockaddr **nam);
466 int (*pru_attach)(struct socket *so, int proto, struct proc *p);
467 int (*pru_bind)(struct socket *so, struct sockaddr *nam,
468 struct proc *p);
469 int (*pru_connect)(struct socket *so, struct sockaddr *nam,
470 struct proc *p);
471 int (*pru_connect2)(struct socket *so1, struct socket *so2);
472 int (*pru_control)(struct socket *so, u_long cmd, caddr_t data,
473 struct ifnet *ifp, struct proc *p);
474 int (*pru_detach)(struct socket *so);
475 int (*pru_disconnect)(struct socket *so);
476 int (*pru_listen)(struct socket *so, struct proc *p);
477 int (*pru_peeraddr)(struct socket *so, struct sockaddr **nam);
478 int (*pru_rcvd)(struct socket *so, int flags);
479 int (*pru_rcvoob)(struct socket *so, struct mbuf *m, int flags);
480 int (*pru_send)(struct socket *so, int flags, struct mbuf *m,
481 struct sockaddr *addr, struct mbuf *control,
482 struct proc *p);
483 int (*pru_sense)(struct socket *so, void *sb, int isstat64);
484 int (*pru_shutdown)(struct socket *so);
485 int (*pru_sockaddr)(struct socket *so, struct sockaddr **nam);
486 int (*pru_sosend)(struct socket *so, struct sockaddr *addr,
487 struct uio *uio, struct mbuf *top, struct mbuf *control,
488 int flags);
489 // rdar://87088674
490 int (*pru_soreceive)(struct socket *so, struct sockaddr **paddr,
491 struct uio *uio, struct mbuf **mp0, struct mbuf *__single *controlp,
492 int *flagsp);
493 int (*pru_sopoll)(struct socket *so, int events,
494 struct ucred *cred, void *);
495};
496
497#ifdef XNU_KERNEL_PRIVATE
498/*
499 * If the ordering here looks odd, that's because it's alphabetical. These
500 * should eventually be merged back into struct protosw.
501 *
502 * Internal, private and extendable representation of pr_usrreqs.
503 *
504 * NOTE: When adding new ones, also add default callbacks in pru_sanitize().
505 */
506struct pr_usrreqs {
507 uint32_t pru_flags; /* see PRUF flags below */
508 int (*pru_abort)(struct socket *);
509 int (*pru_accept)(struct socket *, struct sockaddr **);
510 int (*pru_attach)(struct socket *, int proto, struct proc *);
511 int (*pru_bind)(struct socket *, struct sockaddr *, struct proc *);
512 int (*pru_connect)(struct socket *, struct sockaddr *,
513 struct proc *);
514 int (*pru_connect2)(struct socket *, struct socket *);
515 int (*pru_connectx)(struct socket *, struct sockaddr *,
516 struct sockaddr *, struct proc *, uint32_t,
517 sae_associd_t, sae_connid_t *, uint32_t, void *, uint32_t,
518 struct uio *, user_ssize_t *);
519 int (*pru_control)(struct socket *, u_long, caddr_t,
520 struct ifnet *, struct proc *);
521 int (*pru_detach)(struct socket *);
522 int (*pru_disconnect)(struct socket *);
523 int (*pru_disconnectx)(struct socket *,
524 sae_associd_t, sae_connid_t);
525 int (*pru_listen)(struct socket *, struct proc *);
526 int (*pru_peeraddr)(struct socket *, struct sockaddr **);
527 int (*pru_rcvd)(struct socket *, int);
528 int (*pru_rcvoob)(struct socket *, struct mbuf *, int);
529 int (*pru_send)(struct socket *, int, struct mbuf *,
530 struct sockaddr *, struct mbuf *, struct proc *);
531 int (*pru_send_list)(struct socket *, struct mbuf *, u_int *, int);
532#define PRUS_OOB 0x1
533#define PRUS_EOF 0x2
534#define PRUS_MORETOCOME 0x4
535 int (*pru_sense)(struct socket *, void *, int);
536 int (*pru_shutdown)(struct socket *);
537 int (*pru_sockaddr)(struct socket *, struct sockaddr **);
538 int (*pru_sopoll)(struct socket *, int, struct ucred *, void *);
539 int (*pru_soreceive)(struct socket *, struct sockaddr **,
540 struct uio *, struct mbuf **, struct mbuf **, int *);
541 int (*pru_sosend)(struct socket *, struct sockaddr *,
542 struct uio *, struct mbuf *, struct mbuf *, int);
543 int (*pru_sosend_list)(struct socket *, struct mbuf *, size_t, u_int *, int);
544 int (*pru_socheckopt)(struct socket *, struct sockopt *);
545 int (*pru_preconnect)(struct socket *so);
546 int (*pru_defunct)(struct socket *);
547};
548
549/* Values for pru_flags */
550#define PRUF_OLD 0x10000000 /* added via net_add_proto */
551
552#ifdef BSD_KERNEL_PRIVATE
553/*
554 * For faster access than net_uptime(), bypassing the initialization.
555 */
556extern u_int64_t _net_uptime;
557#endif /* BSD_KERNEL_PRIVATE */
558#endif /* XNU_KERNEL_PRIVATE */
559
560__BEGIN_DECLS
561extern int pru_abort_notsupp(struct socket *so);
562extern int pru_accept_notsupp(struct socket *so, struct sockaddr **nam);
563extern int pru_attach_notsupp(struct socket *so, int proto, struct proc *p);
564extern int pru_bind_notsupp(struct socket *so, struct sockaddr *nam,
565 struct proc *p);
566extern int pru_connect_notsupp(struct socket *so, struct sockaddr *nam,
567 struct proc *p);
568extern int pru_connect2_notsupp(struct socket *so1, struct socket *so2);
569#ifdef XNU_KERNEL_PRIVATE
570extern int pru_connectx_notsupp(struct socket *, struct sockaddr *,
571 struct sockaddr *, struct proc *, uint32_t, sae_associd_t,
572 sae_connid_t *, uint32_t, void *, uint32_t, struct uio *, user_ssize_t *);
573extern int pru_disconnectx_notsupp(struct socket *, sae_associd_t,
574 sae_connid_t);
575extern int pru_socheckopt_null(struct socket *, struct sockopt *);
576#endif /* XNU_KERNEL_PRIVATE */
577extern int pru_control_notsupp(struct socket *so, u_long cmd, caddr_t data,
578 struct ifnet *ifp, struct proc *p);
579extern int pru_detach_notsupp(struct socket *so);
580extern int pru_disconnect_notsupp(struct socket *so);
581extern int pru_listen_notsupp(struct socket *so, struct proc *p);
582extern int pru_peeraddr_notsupp(struct socket *so, struct sockaddr **nam);
583extern int pru_rcvd_notsupp(struct socket *so, int flags);
584extern int pru_rcvoob_notsupp(struct socket *so, struct mbuf *m, int flags);
585extern int pru_send_notsupp(struct socket *so, int flags, struct mbuf *m,
586 struct sockaddr *addr, struct mbuf *control, struct proc *p);
587extern int pru_send_list_notsupp(struct socket *, struct mbuf *, u_int *, int);
588extern int pru_sense_null(struct socket *so, void * sb, int isstat64);
589extern int pru_shutdown_notsupp(struct socket *so);
590extern int pru_sockaddr_notsupp(struct socket *so, struct sockaddr **nam);
591extern int pru_sosend_notsupp(struct socket *so, struct sockaddr *addr,
592 struct uio *uio, struct mbuf *top, struct mbuf *control, int flags);
593extern int pru_sosend_list_notsupp(struct socket *, struct mbuf *, size_t, u_int *, int);
594extern int pru_soreceive_notsupp(struct socket *so,
595 struct sockaddr **paddr, struct uio *uio, struct mbuf **mp0,
596 struct mbuf **controlp, int *flagsp);
597extern int pru_sopoll_notsupp(struct socket *so, int events,
598 struct ucred *cred, void *);
599#ifdef XNU_KERNEL_PRIVATE
600extern void pru_sanitize(struct pr_usrreqs *);
601extern void domaininit(void);
602extern void domainfin(void);
603extern void pfctlinput(int, struct sockaddr *);
604extern void pfctlinput2(int, struct sockaddr *, void *);
605extern struct protosw *pffindproto_locked(int, int, int);
606extern struct protosw *pffindprotonotype(int, int);
607extern struct protosw *pffindtype(int, int);
608extern struct protosw_old *pffindproto_old(int, int, int);
609extern int net_add_proto(struct protosw *, struct domain *, int)
610__XNU_INTERNAL(net_add_proto);
611extern void net_init_proto(struct protosw *, struct domain *);
612extern int net_del_proto(int, int, struct domain *)
613__XNU_INTERNAL(net_del_proto);
614extern int net_add_proto_old(struct protosw_old *, struct domain_old *);
615extern int net_del_proto_old(int, int, struct domain_old *);
616extern void net_update_uptime(void);
617extern void net_update_uptime_with_time(const struct timeval *);
618extern uint64_t net_uptime(void);
619extern uint64_t net_uptime_ms(void);
620extern uint64_t net_uptime_us(void);
621extern void net_uptime2timeval(struct timeval *);
622extern struct protosw *pffindproto(int family, int protocol, int type)
623__XNU_INTERNAL(pffindproto);
624#else
625extern int net_add_proto(struct protosw *, struct domain *);
626extern int net_del_proto(int, int, struct domain *);
627extern struct protosw *pffindproto(int family, int protocol, int type);
628#endif /* XNU_KERNEL_PRIVATE */
629__END_DECLS
630#endif /* KERNEL_PRIVATE */
631
632__ASSUME_PTR_ABI_SINGLE_END
633
634#endif /* !_SYS_PROTOSW_H_ */
635