/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights * Reserved. This file contains Original Code and/or Modifications of * Original Code as defined in and that are subject to the Apple Public * Source License Version 1.0 (the 'License'). You may not use this file * except in compliance with the License. Please obtain a copy of the * License at http://www.apple.com/publicsource and read it before using * this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License." * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * All rights reserved. * * This code is derived from software donated to Berkeley by * Jan-Simon Pendry. * * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. * * @(#)activate.c 8.3 (Berkeley) 4/28/95 */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <signal.h> #include <sys/types.h> #include <sys/param.h> #include <sys/socket.h> #include <sys/un.h> #include <sys/syslog.h> #include <sys/uio.h> #include "portald.h" /* * Scan the providers list and call the * appropriate function. */ static int activate_argv(pcr, key, v, so, fdp) struct portal_cred *pcr; char *key; char **v; int so; int *fdp; { provider *pr; for (pr = providers; pr->pr_match; pr++) if (strcmp(v[0], pr->pr_match) == 0) return ((*pr->pr_func)(pcr, key, v, so, fdp)); return (ENOENT); } static int get_request(so, pcr, key, klen) int so; struct portal_cred *pcr; char *key; int klen; { struct iovec iov[2]; struct msghdr msg; int n; iov[0].iov_base = (caddr_t) pcr; iov[0].iov_len = sizeof(*pcr); iov[1].iov_base = key; iov[1].iov_len = klen; memset(&msg, 0, sizeof(msg)); msg.msg_iov = iov; msg.msg_iovlen = 2; n = recvmsg(so, &msg, 0); if (n < 0) return (errno); if (n <= sizeof(*pcr)) return (EINVAL); n -= sizeof(*pcr); key[n] = '\0'; return (0); } static void send_reply(so, fd, error) int so; int fd; int error; { int n; struct iovec iov; struct msghdr msg; struct { struct cmsghdr cmsg; int fd; } ctl; /* * Line up error code. Don't worry about byte ordering * because we must be sending to the local machine. */ iov.iov_base = (caddr_t) &error; iov.iov_len = sizeof(error); /* * Build a msghdr */ memset(&msg, 0, sizeof(msg)); msg.msg_iov = &iov; msg.msg_iovlen = 1; /* * If there is a file descriptor to send then * construct a suitable rights control message. */ if (fd >= 0) { ctl.fd = fd; ctl.cmsg.cmsg_len = sizeof(ctl); ctl.cmsg.cmsg_level = SOL_SOCKET; ctl.cmsg.cmsg_type = SCM_RIGHTS; msg.msg_control = (caddr_t) &ctl; msg.msg_controllen = ctl.cmsg.cmsg_len; } /* * Send to kernel... */ if ((n = sendmsg(so, &msg, MSG_EOR)) < 0) syslog(LOG_ERR, "send: %s", strerror(errno)); #ifdef DEBUG fprintf(stderr, "sent %d bytes\n", n); #endif sleep(1); /*XXX*/ #ifdef notdef if (shutdown(so, 2) < 0) syslog(LOG_ERR, "shutdown: %s", strerror(errno)); #endif /* * Throw away the open file descriptor */ (void) close(fd); } void activate(q, so) qelem *q; int so; { struct portal_cred pcred; char key[MAXPATHLEN+1]; int error; char **v; int fd = -1; /* * Read the key from the socket */ error = get_request(so, &pcred, key, sizeof(key)); if (error) { syslog(LOG_ERR, "activate: recvmsg: %s", strerror(error)); goto drop; } #ifdef DEBUG fprintf(stderr, "lookup key %s\n", key); #endif /* * Find a match in the configuration file */ v = conf_match(q, key); /* * If a match existed, then find an appropriate portal * otherwise simply return ENOENT. */ if (v) { error = activate_argv(&pcred, key, v, so, &fd); if (error) fd = -1; else if (fd < 0) error = -1; } else { error = ENOENT; } if (error >= 0) send_reply(so, fd, error); drop:; close(so); }