2 * Copyright (c) 2003, 2004 Jeffrey Hsu.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Jeffrey M. Hsu.
16 * 4. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * $DragonFly: src/sys/kern/uipc_msg.c,v 1.12 2004/06/07 07:01:34 dillon Exp $
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/msgport.h>
36 #include <sys/protosw.h>
37 #include <sys/socket.h>
38 #include <sys/socketvar.h>
39 #include <sys/socketops.h>
40 #include <sys/thread.h>
41 #include <sys/thread2.h>
42 #include <sys/msgport2.h>
44 #include <net/netisr.h>
45 #include <net/netmsg.h>
48 so_pru_abort(struct socket *so)
51 struct netmsg_pru_abort msg;
54 port = so->so_proto->pr_mport(so, NULL, PRU_ABORT);
55 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
56 lwkt_cmd_func(netmsg_pru_abort), lwkt_cmd_op_none);
57 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_abort;
59 error = lwkt_domsg(port, &msg.nm_lmsg);
64 so_pru_accept(struct socket *so, struct sockaddr **nam)
66 /* Block (memory allocation) in process context. XXX JH */
67 return ((*so->so_proto->pr_usrreqs->pru_accept)(so, nam));
71 struct netmsg_pru_accept msg;
74 port = so->so_proto->pr_mport(so, NULL, PRU_ACCEPT);
75 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
76 lwkt_cmd_func(netmsg_pru_accept), lwkt_cmd_op_none);
77 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_accept;
80 error = lwkt_domsg(port, &msg.nm_lmsg);
86 so_pru_attach(struct socket *so, int proto, struct pru_attach_info *ai)
89 struct netmsg_pru_attach msg;
92 port = so->so_proto->pr_mport(NULL, NULL, PRU_ATTACH);
93 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
94 lwkt_cmd_func(netmsg_pru_attach), lwkt_cmd_op_none);
95 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_attach;
99 error = lwkt_domsg(port, &msg.nm_lmsg);
104 so_pru_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
107 struct netmsg_pru_bind msg;
110 /* Send mesg to thread for new address. */
111 port = so->so_proto->pr_mport(NULL, nam, PRU_BIND);
112 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
113 lwkt_cmd_func(netmsg_pru_bind), lwkt_cmd_op_none);
114 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_bind;
117 msg.nm_td = td; /* used only for prison_ip() XXX JH */
118 error = lwkt_domsg(port, &msg.nm_lmsg);
123 so_pru_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
126 struct netmsg_pru_connect msg;
129 port = so->so_proto->pr_mport(so, nam, PRU_CONNECT);
130 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
131 lwkt_cmd_func(netmsg_pru_connect), lwkt_cmd_op_none);
132 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_connect;
136 error = lwkt_domsg(port, &msg.nm_lmsg);
141 so_pru_connect2(struct socket *so1, struct socket *so2)
144 struct netmsg_pru_connect2 msg;
147 port = so1->so_proto->pr_mport(so1, NULL, PRU_CONNECT2);
148 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
149 lwkt_cmd_func(netmsg_pru_connect2), lwkt_cmd_op_none);
150 msg.nm_prufn = so1->so_proto->pr_usrreqs->pru_connect2;
153 error = lwkt_domsg(port, &msg.nm_lmsg);
158 so_pru_control(struct socket *so, u_long cmd, caddr_t data, struct ifnet *ifp,
161 return ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, ifp,
163 #ifdef gag /* does copyin and copyout deep inside stack XXX JH */
165 struct netmsg_pru_control msg;
168 port = so->so_proto->pr_mport(so, NULL, PRU_CONTROL);
169 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
170 lwkt_cmd_func(netmsg_pru_control), lwkt_cmd_op_none);
171 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_control;
177 error = lwkt_domsg(port, &msg.nm_lmsg);
183 so_pru_detach(struct socket *so)
186 struct netmsg_pru_detach msg;
189 port = so->so_proto->pr_mport(so, NULL, PRU_DETACH);
190 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
191 lwkt_cmd_func(netmsg_pru_detach), lwkt_cmd_op_none);
192 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_detach;
194 error = lwkt_domsg(port, &msg.nm_lmsg);
199 so_pru_disconnect(struct socket *so)
202 struct netmsg_pru_disconnect msg;
205 port = so->so_proto->pr_mport(so, NULL, PRU_DISCONNECT);
206 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
207 lwkt_cmd_func(netmsg_pru_disconnect), lwkt_cmd_op_none);
208 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_disconnect;
210 error = lwkt_domsg(port, &msg.nm_lmsg);
215 so_pru_listen(struct socket *so, struct thread *td)
218 struct netmsg_pru_listen msg;
221 port = so->so_proto->pr_mport(so, NULL, PRU_LISTEN);
222 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
223 lwkt_cmd_func(netmsg_pru_listen), lwkt_cmd_op_none);
224 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_listen;
226 msg.nm_td = td; /* used only for prison_ip() XXX JH */
227 error = lwkt_domsg(port, &msg.nm_lmsg);
232 so_pru_peeraddr(struct socket *so, struct sockaddr **nam)
235 struct netmsg_pru_peeraddr msg;
238 port = so->so_proto->pr_mport(so, NULL, PRU_PEERADDR);
239 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
240 lwkt_cmd_func(netmsg_pru_peeraddr), lwkt_cmd_op_none);
241 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_peeraddr;
244 error = lwkt_domsg(port, &msg.nm_lmsg);
249 so_pru_rcvd(struct socket *so, int flags)
252 struct netmsg_pru_rcvd msg;
255 port = so->so_proto->pr_mport(so, NULL, PRU_RCVD);
256 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
257 lwkt_cmd_func(netmsg_pru_rcvd), lwkt_cmd_op_none);
258 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_rcvd;
260 msg.nm_flags = flags;
261 error = lwkt_domsg(port, &msg.nm_lmsg);
266 so_pru_rcvoob(struct socket *so, struct mbuf *m, int flags)
269 struct netmsg_pru_rcvoob msg;
272 port = so->so_proto->pr_mport(so, NULL, PRU_RCVOOB);
273 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
274 lwkt_cmd_func(netmsg_pru_rcvoob), lwkt_cmd_op_none);
275 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_rcvoob;
278 msg.nm_flags = flags;
279 error = lwkt_domsg(port, &msg.nm_lmsg);
284 so_pru_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
285 struct mbuf *control, struct thread *td)
288 struct netmsg_pru_send msg;
291 port = so->so_proto->pr_mport(so, NULL, PRU_SEND);
292 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
293 lwkt_cmd_func(netmsg_pru_send), lwkt_cmd_op_none);
294 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_send;
296 msg.nm_flags = flags;
299 msg.nm_control = control;
301 error = lwkt_domsg(port, &msg.nm_lmsg);
306 so_pru_sense(struct socket *so, struct stat *sb)
309 struct netmsg_pru_sense msg;
312 port = so->so_proto->pr_mport(so, NULL, PRU_SENSE);
313 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
314 lwkt_cmd_func(netmsg_pru_sense), lwkt_cmd_op_none);
315 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_sense;
318 error = lwkt_domsg(port, &msg.nm_lmsg);
323 so_pru_shutdown(struct socket *so)
326 struct netmsg_pru_shutdown msg;
329 port = so->so_proto->pr_mport(so, NULL, PRU_SHUTDOWN);
330 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
331 lwkt_cmd_func(netmsg_pru_shutdown), lwkt_cmd_op_none);
332 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_shutdown;
334 error = lwkt_domsg(port, &msg.nm_lmsg);
339 so_pru_sockaddr(struct socket *so, struct sockaddr **nam)
342 struct netmsg_pru_sockaddr msg;
345 port = so->so_proto->pr_mport(so, NULL, PRU_SOCKADDR);
346 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
347 lwkt_cmd_func(netmsg_pru_sockaddr), lwkt_cmd_op_none);
348 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_sockaddr;
351 error = lwkt_domsg(port, &msg.nm_lmsg);
356 so_pru_sopoll(struct socket *so, int events, struct ucred *cred,
360 struct netmsg_pru_sopoll msg;
363 port = so->so_proto->pr_mport(so, NULL, PRU_SOPOLL);
364 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
365 lwkt_cmd_func(netmsg_pru_sopoll), lwkt_cmd_op_none);
366 msg.nm_prufn = so->so_proto->pr_usrreqs->pru_sopoll;
368 msg.nm_events = events;
371 error = lwkt_domsg(port, &msg.nm_lmsg);
376 so_pr_ctloutput(struct socket *so, struct sockopt *sopt)
378 return ((*so->so_proto->pr_ctloutput)(so, sopt));
379 #ifdef gag /* does copyin and copyout deep inside stack XXX JH */
380 struct netmsg_pr_ctloutput msg;
384 port = so->so_proto->pr_mport(so, NULL);
385 lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0,
386 lwkt_cmd_func(netmsg_pru_ctloutput), lwkt_cmd_op_none);
387 msg.nm_prfn = so->so_proto->pr_ctloutput;
390 error = lwkt_domsg(port, &msg.nm_lmsg);
396 * If we convert all the protosw pr_ functions for all the protocols
397 * to take a message directly, this layer can go away. For the moment
398 * our dispatcher ignores the return value, but since we are handling
399 * the replymsg ourselves we return EASYNC by convention.
402 netmsg_pru_abort(lwkt_msg_t msg)
404 struct netmsg_pru_abort *nm = (void *)msg;
406 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so));
412 netmsg_pru_accept(lwkt_msg_t msg)
414 struct netmsg_pru_accept *nm = (void *)msg;
416 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam));
422 netmsg_pru_attach(lwkt_msg_t msg)
424 struct netmsg_pru_attach *nm = (void *)msg;
426 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_proto, nm->nm_ai));
431 netmsg_pru_bind(lwkt_msg_t msg)
433 struct netmsg_pru_bind *nm = (void *)msg;
435 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam, nm->nm_td));
440 netmsg_pru_connect(lwkt_msg_t msg)
442 struct netmsg_pru_connect *nm = (void *)msg;
444 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam, nm->nm_td));
449 netmsg_pru_connect2(lwkt_msg_t msg)
451 struct netmsg_pru_connect2 *nm = (void *)msg;
453 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so1, nm->nm_so2));
458 netmsg_pru_control(lwkt_msg_t msg)
460 struct netmsg_pru_control *nm = (void *)msg;
463 error = nm->nm_prufn(nm->nm_so, nm->nm_cmd, nm->nm_data,
464 nm->nm_ifp, nm->nm_td);
465 lwkt_replymsg(msg, error);
470 netmsg_pru_detach(lwkt_msg_t msg)
472 struct netmsg_pru_detach *nm = (void *)msg;
474 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so));
479 netmsg_pru_disconnect(lwkt_msg_t msg)
481 struct netmsg_pru_disconnect *nm = (void *)msg;
483 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so));
488 netmsg_pru_listen(lwkt_msg_t msg)
490 struct netmsg_pru_listen *nm = (void *)msg;
492 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_td));
497 netmsg_pru_peeraddr(lwkt_msg_t msg)
499 struct netmsg_pru_peeraddr *nm = (void *)msg;
501 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam));
506 netmsg_pru_rcvd(lwkt_msg_t msg)
508 struct netmsg_pru_rcvd *nm = (void *)msg;
510 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_flags));
515 netmsg_pru_rcvoob(lwkt_msg_t msg)
517 struct netmsg_pru_rcvoob *nm = (void *)msg;
519 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_m, nm->nm_flags));
524 netmsg_pru_send(lwkt_msg_t msg)
526 struct netmsg_pru_send *nm = (void *)msg;
529 error = nm->nm_prufn(nm->nm_so, nm->nm_flags, nm->nm_m,
530 nm->nm_addr, nm->nm_control, nm->nm_td);
531 lwkt_replymsg(msg, error);
536 netmsg_pru_sense(lwkt_msg_t msg)
538 struct netmsg_pru_sense *nm = (void *)msg;
540 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_stat));
545 netmsg_pru_shutdown(lwkt_msg_t msg)
547 struct netmsg_pru_shutdown *nm = (void *)msg;
549 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so));
554 netmsg_pru_sockaddr(lwkt_msg_t msg)
556 struct netmsg_pru_sockaddr *nm = (void *)msg;
558 lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam));
563 netmsg_pru_sopoll(lwkt_msg_t msg)
565 struct netmsg_pru_sopoll *nm = (void *)msg;
568 error = nm->nm_prufn(nm->nm_so, nm->nm_events, nm->nm_cred, nm->nm_td);
569 lwkt_replymsg(msg, error);
574 netmsg_pr_ctloutput(lwkt_msg_t msg)
576 struct netmsg_pr_ctloutput *nm = (void *)msg;
578 lwkt_replymsg(msg, nm->nm_prfn(nm->nm_so, nm->nm_sopt));
583 netmsg_pr_timeout(lwkt_msg_t msg)
585 struct netmsg_pr_timeout *nm = (void *)msg;
587 lwkt_replymsg(msg, nm->nm_prfn());
592 * Handle a predicate event request. This function is only called once
593 * when the predicate message queueing request is received.
596 netmsg_so_notify(lwkt_msg_t lmsg)
598 struct netmsg_so_notify *msg = (void *)lmsg;
601 sb = (msg->nm_etype & NM_REVENT) ?
602 &msg->nm_so->so_rcv :
606 * Reply immediately if the event has occured, otherwise queue the
609 if (msg->nm_predicate((struct netmsg *)msg)) {
610 lwkt_replymsg(lmsg, lmsg->ms_error);
612 TAILQ_INSERT_TAIL(&sb->sb_sel.si_mlist, msg, nm_list);
613 sb->sb_flags |= SB_MEVENT;
619 * Predicate requests can be aborted. This function is only called once
620 * and will interlock against processing/reply races (since such races
621 * occur on the same thread that controls the port where the abort is
625 netmsg_so_notify_abort(lwkt_msg_t lmsg)
627 struct netmsg_so_notify *msg = (void *)lmsg;
630 sb = (msg->nm_etype & NM_REVENT) ?
631 &msg->nm_so->so_rcv :
633 TAILQ_REMOVE(&sb->sb_sel.si_mlist, msg, nm_list);
634 lwkt_replymsg(lmsg, EINTR);