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 */ 135 struct 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. */ 143 struct mbuf; 144 struct proc; 145 struct sockaddr; 146 struct socket; 147 struct sockopt; 148 struct socket_filter; 149 struct uio; 150 struct ifnet; 151 #ifdef XNU_KERNEL_PRIVATE 152 struct domain_old; 153 struct 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 */ 168 struct protosw_old { 169 #else 170 struct 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 */ 255 struct 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 347 struct protoctl_ev_val { 348 uint32_t val; 349 uint32_t tcp_seq_number; 350 }; 351 352 extern void 353 protoctl_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); 356 357 struct protoctl_ev_val; 358 /* Proto event declarations */ 359 extern struct eventhandler_lists_ctxt protoctl_evhdlr_ctxt; 360 typedef 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 *); 363 EVENTHANDLER_DECLARE(protoctl_event, protoctl_event_fn); 364 #endif /* SKYWALK */ 365 #ifdef PRCREQUESTS 366 char *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 395 char *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 435 char *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 */ 445 446 struct stat; 447 struct ucred; 448 struct uio; 449 struct 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 */ 460 struct pr_usrreqs_old { 461 #else 462 struct 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 */ 506 struct 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 *, int, struct mbuf *, 532 struct sockaddr *, struct mbuf *, struct proc *); 533 #define PRUS_OOB 0x1 534 #define PRUS_EOF 0x2 535 #define PRUS_MORETOCOME 0x4 536 int (*pru_sense)(struct socket *, void *, int); 537 int (*pru_shutdown)(struct socket *); 538 int (*pru_sockaddr)(struct socket *, struct sockaddr **); 539 int (*pru_sopoll)(struct socket *, int, struct ucred *, void *); 540 int (*pru_soreceive)(struct socket *, struct sockaddr **, 541 struct uio *, struct mbuf **, struct mbuf **, int *); 542 int (*pru_soreceive_list)(struct socket *, struct recv_msg_elem *, u_int, 543 int *); 544 int (*pru_sosend)(struct socket *, struct sockaddr *, 545 struct uio *, struct mbuf *, struct mbuf *, int); 546 int (*pru_sosend_list)(struct socket *, struct uio **, u_int, int); 547 int (*pru_socheckopt)(struct socket *, struct sockopt *); 548 int (*pru_preconnect)(struct socket *so); 549 int (*pru_defunct)(struct socket *); 550 }; 551 552 /* Values for pru_flags */ 553 #define PRUF_OLD 0x10000000 /* added via net_add_proto */ 554 555 #ifdef BSD_KERNEL_PRIVATE 556 /* 557 * For faster access than net_uptime(), bypassing the initialization. 558 */ 559 extern u_int64_t _net_uptime; 560 #endif /* BSD_KERNEL_PRIVATE */ 561 #endif /* XNU_KERNEL_PRIVATE */ 562 563 __BEGIN_DECLS 564 extern int pru_abort_notsupp(struct socket *so); 565 extern int pru_accept_notsupp(struct socket *so, struct sockaddr **nam); 566 extern int pru_attach_notsupp(struct socket *so, int proto, struct proc *p); 567 extern int pru_bind_notsupp(struct socket *so, struct sockaddr *nam, 568 struct proc *p); 569 extern int pru_connect_notsupp(struct socket *so, struct sockaddr *nam, 570 struct proc *p); 571 extern int pru_connect2_notsupp(struct socket *so1, struct socket *so2); 572 #ifdef XNU_KERNEL_PRIVATE 573 extern int pru_connectx_notsupp(struct socket *, struct sockaddr *, 574 struct sockaddr *, struct proc *, uint32_t, sae_associd_t, 575 sae_connid_t *, uint32_t, void *, uint32_t, struct uio *, user_ssize_t *); 576 extern int pru_disconnectx_notsupp(struct socket *, sae_associd_t, 577 sae_connid_t); 578 extern int pru_socheckopt_null(struct socket *, struct sockopt *); 579 #endif /* XNU_KERNEL_PRIVATE */ 580 extern int pru_control_notsupp(struct socket *so, u_long cmd, caddr_t data, 581 struct ifnet *ifp, struct proc *p); 582 extern int pru_detach_notsupp(struct socket *so); 583 extern int pru_disconnect_notsupp(struct socket *so); 584 extern int pru_listen_notsupp(struct socket *so, struct proc *p); 585 extern int pru_peeraddr_notsupp(struct socket *so, struct sockaddr **nam); 586 extern int pru_rcvd_notsupp(struct socket *so, int flags); 587 extern int pru_rcvoob_notsupp(struct socket *so, struct mbuf *m, int flags); 588 extern int pru_send_notsupp(struct socket *so, int flags, struct mbuf *m, 589 struct sockaddr *addr, struct mbuf *control, struct proc *p); 590 extern int pru_send_list_notsupp(struct socket *so, int flags, struct mbuf *m, 591 struct sockaddr *addr, struct mbuf *control, struct proc *p); 592 extern int pru_sense_null(struct socket *so, void * sb, int isstat64); 593 extern int pru_shutdown_notsupp(struct socket *so); 594 extern int pru_sockaddr_notsupp(struct socket *so, struct sockaddr **nam); 595 extern int pru_sosend_notsupp(struct socket *so, struct sockaddr *addr, 596 struct uio *uio, struct mbuf *top, struct mbuf *control, int flags); 597 extern int pru_sosend_list_notsupp(struct socket *so, struct uio **uio, 598 u_int, int flags); 599 extern int pru_soreceive_notsupp(struct socket *so, 600 struct sockaddr **paddr, struct uio *uio, struct mbuf **mp0, 601 struct mbuf **controlp, int *flagsp); 602 extern int pru_soreceive_list_notsupp(struct socket *, struct recv_msg_elem *, u_int, 603 int *); 604 extern int pru_sopoll_notsupp(struct socket *so, int events, 605 struct ucred *cred, void *); 606 #ifdef XNU_KERNEL_PRIVATE 607 extern void pru_sanitize(struct pr_usrreqs *); 608 extern void domaininit(void); 609 extern void domainfin(void); 610 extern void pfctlinput(int, struct sockaddr *); 611 extern void pfctlinput2(int, struct sockaddr *, void *); 612 extern struct protosw *pffindproto_locked(int, int, int); 613 extern struct protosw *pffindprotonotype(int, int); 614 extern struct protosw *pffindtype(int, int); 615 extern struct protosw_old *pffindproto_old(int, int, int); 616 extern int net_add_proto(struct protosw *, struct domain *, int) 617 __XNU_INTERNAL(net_add_proto); 618 extern void net_init_proto(struct protosw *, struct domain *); 619 extern int net_del_proto(int, int, struct domain *) 620 __XNU_INTERNAL(net_del_proto); 621 extern int net_add_proto_old(struct protosw_old *, struct domain_old *); 622 extern int net_del_proto_old(int, int, struct domain_old *); 623 extern void net_update_uptime(void); 624 extern void net_update_uptime_with_time(const struct timeval *); 625 extern u_int64_t net_uptime(void); 626 extern u_int64_t net_uptime_ms(void); 627 extern void net_uptime2timeval(struct timeval *); 628 extern struct protosw *pffindproto(int family, int protocol, int type) 629 __XNU_INTERNAL(pffindproto); 630 #else 631 extern int net_add_proto(struct protosw *, struct domain *); 632 extern int net_del_proto(int, int, struct domain *); 633 extern struct protosw *pffindproto(int family, int protocol, int type); 634 #endif /* XNU_KERNEL_PRIVATE */ 635 __END_DECLS 636 #endif /* KERNEL_PRIVATE */ 637 638 __ASSUME_PTR_ABI_SINGLE_END 639 640 #endif /* !_SYS_PROTOSW_H_ */ 641