/* * Copyright (c) 2003, 2004 Jeffrey M. Hsu. All rights reserved. * Copyright (c) 2003, 2004 The DragonFly Project. All rights reserved. * * This code is derived from software contributed to The DragonFly Project * by Jeffrey M. Hsu. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of The DragonFly Project nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific, prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $DragonFly: src/sys/kern/uipc_msg.c,v 1.13 2004/07/08 22:07:34 hsu Exp $ */ /* * Copyright (c) 2003, 2004 Jeffrey M. Hsu. All rights reserved. * * License terms: all terms for the DragonFly license above plus the following: * * 4. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * * This product includes software developed by Jeffrey M. Hsu * for the DragonFly Project. * * This requirement may be waived with permission from Jeffrey Hsu. * This requirement will sunset and may be removed on July 8 2005, * after which the standard DragonFly license (as shown above) will * apply. */ #include #include #include #include #include #include #include #include #include #include #include #include int so_pru_abort(struct socket *so) { int error; struct netmsg_pru_abort msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_ABORT); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_abort), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_abort; msg.nm_so = so; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_accept(struct socket *so, struct sockaddr **nam) { /* Block (memory allocation) in process context. XXX JH */ return ((*so->so_proto->pr_usrreqs->pru_accept)(so, nam)); #ifdef notdef int error; struct netmsg_pru_accept msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_ACCEPT); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_accept), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_accept; msg.nm_so = so; msg.nm_nam = nam; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); #endif } int so_pru_attach(struct socket *so, int proto, struct pru_attach_info *ai) { int error; struct netmsg_pru_attach msg; lwkt_port_t port; port = so->so_proto->pr_mport(NULL, NULL, PRU_ATTACH); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_attach), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_attach; msg.nm_so = so; msg.nm_proto = proto; msg.nm_ai = ai; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_bind(struct socket *so, struct sockaddr *nam, struct thread *td) { int error; struct netmsg_pru_bind msg; lwkt_port_t port; /* Send mesg to thread for new address. */ port = so->so_proto->pr_mport(NULL, nam, PRU_BIND); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_bind), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_bind; msg.nm_so = so; msg.nm_nam = nam; msg.nm_td = td; /* used only for prison_ip() XXX JH */ error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_connect(struct socket *so, struct sockaddr *nam, struct thread *td) { int error; struct netmsg_pru_connect msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, nam, PRU_CONNECT); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_connect), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_connect; msg.nm_so = so; msg.nm_nam = nam; msg.nm_td = td; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_connect2(struct socket *so1, struct socket *so2) { int error; struct netmsg_pru_connect2 msg; lwkt_port_t port; port = so1->so_proto->pr_mport(so1, NULL, PRU_CONNECT2); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_connect2), lwkt_cmd_op_none); msg.nm_prufn = so1->so_proto->pr_usrreqs->pru_connect2; msg.nm_so1 = so1; msg.nm_so2 = so2; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_control(struct socket *so, u_long cmd, caddr_t data, struct ifnet *ifp, struct thread *td) { return ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, ifp, td)); #ifdef gag /* does copyin and copyout deep inside stack XXX JH */ int error; struct netmsg_pru_control msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_CONTROL); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_control), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_control; msg.nm_so = so; msg.nm_cmd = cmd; msg.nm_data = data; msg.nm_ifp = ifp; msg.nm_td = td; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); #endif } int so_pru_detach(struct socket *so) { int error; struct netmsg_pru_detach msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_DETACH); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_detach), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_detach; msg.nm_so = so; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_disconnect(struct socket *so) { int error; struct netmsg_pru_disconnect msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_DISCONNECT); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_disconnect), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_disconnect; msg.nm_so = so; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_listen(struct socket *so, struct thread *td) { int error; struct netmsg_pru_listen msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_LISTEN); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_listen), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_listen; msg.nm_so = so; msg.nm_td = td; /* used only for prison_ip() XXX JH */ error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_peeraddr(struct socket *so, struct sockaddr **nam) { int error; struct netmsg_pru_peeraddr msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_PEERADDR); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_peeraddr), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_peeraddr; msg.nm_so = so; msg.nm_nam = nam; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_rcvd(struct socket *so, int flags) { int error; struct netmsg_pru_rcvd msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_RCVD); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_rcvd), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_rcvd; msg.nm_so = so; msg.nm_flags = flags; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_rcvoob(struct socket *so, struct mbuf *m, int flags) { int error; struct netmsg_pru_rcvoob msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_RCVOOB); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_rcvoob), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_rcvoob; msg.nm_so = so; msg.nm_m = m; msg.nm_flags = flags; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, struct mbuf *control, struct thread *td) { int error; struct netmsg_pru_send msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_SEND); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_send), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_send; msg.nm_so = so; msg.nm_flags = flags; msg.nm_m = m; msg.nm_addr = addr; msg.nm_control = control; msg.nm_td = td; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_sense(struct socket *so, struct stat *sb) { int error; struct netmsg_pru_sense msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_SENSE); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_sense), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_sense; msg.nm_so = so; msg.nm_stat = sb; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_shutdown(struct socket *so) { int error; struct netmsg_pru_shutdown msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_SHUTDOWN); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_shutdown), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_shutdown; msg.nm_so = so; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_sockaddr(struct socket *so, struct sockaddr **nam) { int error; struct netmsg_pru_sockaddr msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_SOCKADDR); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_sockaddr), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_sockaddr; msg.nm_so = so; msg.nm_nam = nam; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pru_sopoll(struct socket *so, int events, struct ucred *cred, struct thread *td) { int error; struct netmsg_pru_sopoll msg; lwkt_port_t port; port = so->so_proto->pr_mport(so, NULL, PRU_SOPOLL); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_sopoll), lwkt_cmd_op_none); msg.nm_prufn = so->so_proto->pr_usrreqs->pru_sopoll; msg.nm_so = so; msg.nm_events = events; msg.nm_cred = cred; msg.nm_td = td; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); } int so_pr_ctloutput(struct socket *so, struct sockopt *sopt) { return ((*so->so_proto->pr_ctloutput)(so, sopt)); #ifdef gag /* does copyin and copyout deep inside stack XXX JH */ struct netmsg_pr_ctloutput msg; lwkt_port_t port; int error; port = so->so_proto->pr_mport(so, NULL); lwkt_initmsg(&msg.nm_lmsg, &curthread->td_msgport, 0, lwkt_cmd_func(netmsg_pru_ctloutput), lwkt_cmd_op_none); msg.nm_prfn = so->so_proto->pr_ctloutput; msg.nm_so = so; msg.nm_sopt = sopt; error = lwkt_domsg(port, &msg.nm_lmsg); return (error); #endif } /* * If we convert all the protosw pr_ functions for all the protocols * to take a message directly, this layer can go away. For the moment * our dispatcher ignores the return value, but since we are handling * the replymsg ourselves we return EASYNC by convention. */ int netmsg_pru_abort(lwkt_msg_t msg) { struct netmsg_pru_abort *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so)); return(EASYNC); } #ifdef notused int netmsg_pru_accept(lwkt_msg_t msg) { struct netmsg_pru_accept *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam)); return(EASYNC); } #endif int netmsg_pru_attach(lwkt_msg_t msg) { struct netmsg_pru_attach *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_proto, nm->nm_ai)); return(EASYNC); } int netmsg_pru_bind(lwkt_msg_t msg) { struct netmsg_pru_bind *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam, nm->nm_td)); return(EASYNC); } int netmsg_pru_connect(lwkt_msg_t msg) { struct netmsg_pru_connect *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam, nm->nm_td)); return(EASYNC); } int netmsg_pru_connect2(lwkt_msg_t msg) { struct netmsg_pru_connect2 *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so1, nm->nm_so2)); return(EASYNC); } int netmsg_pru_control(lwkt_msg_t msg) { struct netmsg_pru_control *nm = (void *)msg; int error; error = nm->nm_prufn(nm->nm_so, nm->nm_cmd, nm->nm_data, nm->nm_ifp, nm->nm_td); lwkt_replymsg(msg, error); return(EASYNC); } int netmsg_pru_detach(lwkt_msg_t msg) { struct netmsg_pru_detach *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so)); return(EASYNC); } int netmsg_pru_disconnect(lwkt_msg_t msg) { struct netmsg_pru_disconnect *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so)); return(EASYNC); } int netmsg_pru_listen(lwkt_msg_t msg) { struct netmsg_pru_listen *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_td)); return(EASYNC); } int netmsg_pru_peeraddr(lwkt_msg_t msg) { struct netmsg_pru_peeraddr *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam)); return(EASYNC); } int netmsg_pru_rcvd(lwkt_msg_t msg) { struct netmsg_pru_rcvd *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_flags)); return(EASYNC); } int netmsg_pru_rcvoob(lwkt_msg_t msg) { struct netmsg_pru_rcvoob *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_m, nm->nm_flags)); return(EASYNC); } int netmsg_pru_send(lwkt_msg_t msg) { struct netmsg_pru_send *nm = (void *)msg; int error; error = nm->nm_prufn(nm->nm_so, nm->nm_flags, nm->nm_m, nm->nm_addr, nm->nm_control, nm->nm_td); lwkt_replymsg(msg, error); return(EASYNC); } int netmsg_pru_sense(lwkt_msg_t msg) { struct netmsg_pru_sense *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_stat)); return(EASYNC); } int netmsg_pru_shutdown(lwkt_msg_t msg) { struct netmsg_pru_shutdown *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so)); return(EASYNC); } int netmsg_pru_sockaddr(lwkt_msg_t msg) { struct netmsg_pru_sockaddr *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prufn(nm->nm_so, nm->nm_nam)); return(EASYNC); } int netmsg_pru_sopoll(lwkt_msg_t msg) { struct netmsg_pru_sopoll *nm = (void *)msg; int error; error = nm->nm_prufn(nm->nm_so, nm->nm_events, nm->nm_cred, nm->nm_td); lwkt_replymsg(msg, error); return(EASYNC); } int netmsg_pr_ctloutput(lwkt_msg_t msg) { struct netmsg_pr_ctloutput *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prfn(nm->nm_so, nm->nm_sopt)); return(EASYNC); } int netmsg_pr_timeout(lwkt_msg_t msg) { struct netmsg_pr_timeout *nm = (void *)msg; lwkt_replymsg(msg, nm->nm_prfn()); return(EASYNC); } /* * Handle a predicate event request. This function is only called once * when the predicate message queueing request is received. */ int netmsg_so_notify(lwkt_msg_t lmsg) { struct netmsg_so_notify *msg = (void *)lmsg; struct sockbuf *sb; sb = (msg->nm_etype & NM_REVENT) ? &msg->nm_so->so_rcv : &msg->nm_so->so_snd; /* * Reply immediately if the event has occured, otherwise queue the * request. */ if (msg->nm_predicate((struct netmsg *)msg)) { lwkt_replymsg(lmsg, lmsg->ms_error); } else { TAILQ_INSERT_TAIL(&sb->sb_sel.si_mlist, msg, nm_list); sb->sb_flags |= SB_MEVENT; } return(EASYNC); } /* * Predicate requests can be aborted. This function is only called once * and will interlock against processing/reply races (since such races * occur on the same thread that controls the port where the abort is * requeued). */ int netmsg_so_notify_abort(lwkt_msg_t lmsg) { struct netmsg_so_notify *msg = (void *)lmsg; struct sockbuf *sb; sb = (msg->nm_etype & NM_REVENT) ? &msg->nm_so->so_rcv : &msg->nm_so->so_snd; TAILQ_REMOVE(&sb->sb_sel.si_mlist, msg, nm_list); lwkt_replymsg(lmsg, EINTR); return(EASYNC); }