2 * Copyright (c) 2003, 2004 Jeffrey M. Hsu. All rights reserved.
3 * Copyright (c) 2003, 2004 The DragonFly Project. All rights reserved.
5 * This code is derived from software contributed to The DragonFly Project
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of The DragonFly Project nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific, prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * $DragonFly: src/sys/kern/uipc_msg.c,v 1.16 2007/04/22 01:13:10 dillon Exp $
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/msgport.h>
39 #include <sys/protosw.h>
40 #include <sys/socket.h>
41 #include <sys/socketvar.h>
42 #include <sys/socketops.h>
43 #include <sys/thread.h>
44 #include <sys/thread2.h>
45 #include <sys/msgport2.h>
47 #include <net/netisr.h>
48 #include <net/netmsg.h>
51 so_pru_abort(struct socket *so)
54 struct netmsg_pru_abort msg;
57 port = so->so_proto->pr_mport(so, NULL, PRU_ABORT);
58 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
59 lwkt_cmd_func(netmsg_pru_abort), lwkt_cmd_op_none);
60 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_abort;
62 error = lwkt_domsg(port, &msg.nm_lmsg);
67 so_pru_accept(struct socket *so, struct sockaddr **nam)
69 /* Block (memory allocation) in process context. XXX JH */
70 return ((*so->so_proto->pr_usrreqs->pru_accept)(so, nam));
74 struct netmsg_pru_accept msg;
77 port = so->so_proto->pr_mport(so, NULL, PRU_ACCEPT);
78 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
79 lwkt_cmd_func(netmsg_pru_accept), lwkt_cmd_op_none);
80 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_accept;
83 error = lwkt_domsg(port, &msg.nm_lmsg);
89 so_pru_attach(struct socket *so, int proto, struct pru_attach_info *ai)
92 struct netmsg_pru_attach msg;
95 port = so->so_proto->pr_mport(NULL, NULL, PRU_ATTACH);
96 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
97 lwkt_cmd_func(netmsg_pru_attach), lwkt_cmd_op_none);
98 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_attach;
100 msg.nm_proto = proto;
102 error = lwkt_domsg(port, &msg.nm_lmsg);
107 so_pru_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
110 struct netmsg_pru_bind msg;
113 /* Send mesg to thread for new address. */
114 port = so->so_proto->pr_mport(NULL, nam, PRU_BIND);
115 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
116 lwkt_cmd_func(netmsg_pru_bind), lwkt_cmd_op_none);
117 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_bind;
120 msg.nm_td = td; /* used only for prison_ip() XXX JH */
121 error = lwkt_domsg(port, &msg.nm_lmsg);
126 so_pru_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
129 struct netmsg_pru_connect msg;
132 port = so->so_proto->pr_mport(so, nam, PRU_CONNECT);
133 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
134 lwkt_cmd_func(netmsg_pru_connect), lwkt_cmd_op_none);
135 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_connect;
139 error = lwkt_domsg(port, &msg.nm_lmsg);
144 so_pru_connect2(struct socket *so1, struct socket *so2)
147 struct netmsg_pru_connect2 msg;
150 port = so1->so_proto->pr_mport(so1, NULL, PRU_CONNECT2);
151 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
152 lwkt_cmd_func(netmsg_pru_connect2), lwkt_cmd_op_none);
153 msg.nm_prufn = so1->so_proto->pr_usrreqs->pru_connect2;
156 error = lwkt_domsg(port, &msg.nm_lmsg);
161 so_pru_control(struct socket *so, u_long cmd, caddr_t data, struct ifnet *ifp)
163 return ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, ifp,
165 #ifdef gag /* does copyin and copyout deep inside stack XXX JH */
167 struct netmsg_pru_control msg;
170 port = so->so_proto->pr_mport(so, NULL, PRU_CONTROL);
171 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
172 lwkt_cmd_func(netmsg_pru_control), lwkt_cmd_op_none);
173 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_control;
179 error = lwkt_domsg(port, &msg.nm_lmsg);
185 so_pru_detach(struct socket *so)
188 struct netmsg_pru_detach msg;
191 port = so->so_proto->pr_mport(so, NULL, PRU_DETACH);
192 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
193 lwkt_cmd_func(netmsg_pru_detach), lwkt_cmd_op_none);
194 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_detach;
196 error = lwkt_domsg(port, &msg.nm_lmsg);
201 so_pru_disconnect(struct socket *so)
204 struct netmsg_pru_disconnect msg;
207 port = so->so_proto->pr_mport(so, NULL, PRU_DISCONNECT);
208 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
209 lwkt_cmd_func(netmsg_pru_disconnect), lwkt_cmd_op_none);
210 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_disconnect;
212 error = lwkt_domsg(port, &msg.nm_lmsg);
217 so_pru_listen(struct socket *so, struct thread *td)
220 struct netmsg_pru_listen msg;
223 port = so->so_proto->pr_mport(so, NULL, PRU_LISTEN);
224 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
225 lwkt_cmd_func(netmsg_pru_listen), lwkt_cmd_op_none);
226 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_listen;
228 msg.nm_td = td; /* used only for prison_ip() XXX JH */
229 error = lwkt_domsg(port, &msg.nm_lmsg);
234 so_pru_peeraddr(struct socket *so, struct sockaddr **nam)
237 struct netmsg_pru_peeraddr msg;
240 port = so->so_proto->pr_mport(so, NULL, PRU_PEERADDR);
241 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
242 lwkt_cmd_func(netmsg_pru_peeraddr), lwkt_cmd_op_none);
243 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_peeraddr;
246 error = lwkt_domsg(port, &msg.nm_lmsg);
251 so_pru_rcvd(struct socket *so, int flags)
254 struct netmsg_pru_rcvd msg;
257 port = so->so_proto->pr_mport(so, NULL, PRU_RCVD);
258 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
259 lwkt_cmd_func(netmsg_pru_rcvd), lwkt_cmd_op_none);
260 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_rcvd;
262 msg.nm_flags = flags;
263 error = lwkt_domsg(port, &msg.nm_lmsg);
268 so_pru_rcvoob(struct socket *so, struct mbuf *m, int flags)
271 struct netmsg_pru_rcvoob msg;
274 port = so->so_proto->pr_mport(so, NULL, PRU_RCVOOB);
275 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
276 lwkt_cmd_func(netmsg_pru_rcvoob), lwkt_cmd_op_none);
277 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_rcvoob;
280 msg.nm_flags = flags;
281 error = lwkt_domsg(port, &msg.nm_lmsg);
286 so_pru_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
287 struct mbuf *control, struct thread *td)
290 struct netmsg_pru_send msg;
293 port = so->so_proto->pr_mport(so, NULL, PRU_SEND);
294 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
295 lwkt_cmd_func(netmsg_pru_send), lwkt_cmd_op_none);
296 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_send;
298 msg.nm_flags = flags;
301 msg.nm_control = control;
303 error = lwkt_domsg(port, &msg.nm_lmsg);
308 so_pru_sense(struct socket *so, struct stat *sb)
311 struct netmsg_pru_sense msg;
314 port = so->so_proto->pr_mport(so, NULL, PRU_SENSE);
315 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
316 lwkt_cmd_func(netmsg_pru_sense), lwkt_cmd_op_none);
317 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_sense;
320 error = lwkt_domsg(port, &msg.nm_lmsg);
325 so_pru_shutdown(struct socket *so)
328 struct netmsg_pru_shutdown msg;
331 port = so->so_proto->pr_mport(so, NULL, PRU_SHUTDOWN);
332 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
333 lwkt_cmd_func(netmsg_pru_shutdown), lwkt_cmd_op_none);
334 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_shutdown;
336 error = lwkt_domsg(port, &msg.nm_lmsg);
341 so_pru_sockaddr(struct socket *so, struct sockaddr **nam)
344 struct netmsg_pru_sockaddr msg;
347 port = so->so_proto->pr_mport(so, NULL, PRU_SOCKADDR);
348 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
349 lwkt_cmd_func(netmsg_pru_sockaddr), lwkt_cmd_op_none);
350 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_sockaddr;
353 error = lwkt_domsg(port, &msg.nm_lmsg);
358 so_pru_sopoll(struct socket *so, int events, struct ucred *cred)
361 struct netmsg_pru_sopoll msg;
364 port = so->so_proto->pr_mport(so, NULL, PRU_SOPOLL);
365 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
366 lwkt_cmd_func(netmsg_pru_sopoll), lwkt_cmd_op_none);
367 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_sopoll;
369 msg.nm_events = events;
371 msg.nm_td = curthread;
372 error = lwkt_domsg(port, &msg.nm_lmsg);
377 so_pr_ctloutput(struct socket *so, struct sockopt *sopt)
379 return ((*so->so_proto->pr_ctloutput)(so, sopt));
380 #ifdef gag /* does copyin and copyout deep inside stack XXX JH */
381 struct netmsg_pr_ctloutput msg;
385 port = so->so_proto->pr_mport(so, NULL);
386 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
387 lwkt_cmd_func(netmsg_pru_ctloutput), lwkt_cmd_op_none);
388 msg.nm_prfn = so->so_proto->pr_ctloutput;
391 error = lwkt_domsg(port, &msg.nm_lmsg);
397 * If we convert all the protosw pr_ functions for all the protocols
398 * to take a message directly, this layer can go away. For the moment
399 * our dispatcher ignores the return value, but since we are handling
400 * the replymsg ourselves we return EASYNC by convention.
403 netmsg_pru_abort(lwkt_msg_t msg)
405 struct netmsg_pru_abort *nm = (void *)msg;
407 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so));
413 netmsg_pru_accept(lwkt_msg_t msg)
415 struct netmsg_pru_accept *nm = (void *)msg;
417 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam));
423 netmsg_pru_attach(lwkt_msg_t msg)
425 struct netmsg_pru_attach *nm = (void *)msg;
427 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_proto, nm->nm_ai));
432 netmsg_pru_bind(lwkt_msg_t msg)
434 struct netmsg_pru_bind *nm = (void *)msg;
436 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam, nm->nm_td));
441 netmsg_pru_connect(lwkt_msg_t msg)
443 struct netmsg_pru_connect *nm = (void *)msg;
445 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam, nm->nm_td));
450 netmsg_pru_connect2(lwkt_msg_t msg)
452 struct netmsg_pru_connect2 *nm = (void *)msg;
454 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so1, nm->nm_so2));
459 netmsg_pru_control(lwkt_msg_t msg)
461 struct netmsg_pru_control *nm = (void *)msg;
464 error = nm->nm_prufn(nm->nm_so, nm->nm_cmd, nm->nm_data,
465 nm->nm_ifp, nm->nm_td);
466 lwkt_replymsg(msg, error);
471 netmsg_pru_detach(lwkt_msg_t msg)
473 struct netmsg_pru_detach *nm = (void *)msg;
475 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so));
480 netmsg_pru_disconnect(lwkt_msg_t msg)
482 struct netmsg_pru_disconnect *nm = (void *)msg;
484 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so));
489 netmsg_pru_listen(lwkt_msg_t msg)
491 struct netmsg_pru_listen *nm = (void *)msg;
493 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_td));
498 netmsg_pru_peeraddr(lwkt_msg_t msg)
500 struct netmsg_pru_peeraddr *nm = (void *)msg;
502 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam));
507 netmsg_pru_rcvd(lwkt_msg_t msg)
509 struct netmsg_pru_rcvd *nm = (void *)msg;
511 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_flags));
516 netmsg_pru_rcvoob(lwkt_msg_t msg)
518 struct netmsg_pru_rcvoob *nm = (void *)msg;
520 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_m, nm->nm_flags));
525 netmsg_pru_send(lwkt_msg_t msg)
527 struct netmsg_pru_send *nm = (void *)msg;
530 error = nm->nm_prufn(nm->nm_so, nm->nm_flags, nm->nm_m,
531 nm->nm_addr, nm->nm_control, nm->nm_td);
532 lwkt_replymsg(msg, error);
537 netmsg_pru_sense(lwkt_msg_t msg)
539 struct netmsg_pru_sense *nm = (void *)msg;
541 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_stat));
546 netmsg_pru_shutdown(lwkt_msg_t msg)
548 struct netmsg_pru_shutdown *nm = (void *)msg;
550 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so));
555 netmsg_pru_sockaddr(lwkt_msg_t msg)
557 struct netmsg_pru_sockaddr *nm = (void *)msg;
559 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam));
564 netmsg_pru_sopoll(lwkt_msg_t msg)
566 struct netmsg_pru_sopoll *nm = (void *)msg;
569 error = nm->nm_prufn(nm->nm_so, nm->nm_events, nm->nm_cred, nm->nm_td);
570 lwkt_replymsg(msg, error);
575 netmsg_pr_ctloutput(lwkt_msg_t msg)
577 struct netmsg_pr_ctloutput *nm = (void *)msg;
579 lwkt_replymsg(msg, nm->nm_prfn(nm->nm_so, nm->nm_sopt));
584 netmsg_pr_timeout(lwkt_msg_t msg)
586 struct netmsg_pr_timeout *nm = (void *)msg;
588 lwkt_replymsg(msg, nm->nm_prfn());
593 * Handle a predicate event request. This function is only called once
594 * when the predicate message queueing request is received.
597 netmsg_so_notify(lwkt_msg_t lmsg)
599 struct netmsg_so_notify *msg = (void *)lmsg;
600 struct signalsockbuf *ssb;
602 ssb = (msg->nm_etype & NM_REVENT) ?
603 &msg->nm_so->so_rcv :
607 * Reply immediately if the event has occured, otherwise queue the
610 if (msg->nm_predicate((struct netmsg *)msg)) {
611 lwkt_replymsg(lmsg, lmsg->ms_error);
613 TAILQ_INSERT_TAIL(&ssb->ssb_sel.si_mlist, msg, nm_list);
614 ssb->ssb_flags |= SSB_MEVENT;
620 * Predicate requests can be aborted. This function is only called once
621 * and will interlock against processing/reply races (since such races
622 * occur on the same thread that controls the port where the abort is
626 netmsg_so_notify_abort(lwkt_msg_t lmsg)
628 struct netmsg_so_notify *msg = (void *)lmsg;
629 struct signalsockbuf *ssb;
631 ssb = (msg->nm_etype & NM_REVENT) ?
632 &msg->nm_so->so_rcv :
634 TAILQ_REMOVE(&ssb->ssb_sel.si_mlist, msg, nm_list);
635 lwkt_replymsg(lmsg, EINTR);