1107120Sjulian/* 2107120Sjulian * hcseriald.c 3107120Sjulian * 4107120Sjulian * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 5107120Sjulian * All rights reserved. 6107120Sjulian * 7107120Sjulian * Redistribution and use in source and binary forms, with or without 8107120Sjulian * modification, are permitted provided that the following conditions 9107120Sjulian * are met: 10107120Sjulian * 1. Redistributions of source code must retain the above copyright 11107120Sjulian * notice, this list of conditions and the following disclaimer. 12107120Sjulian * 2. Redistributions in binary form must reproduce the above copyright 13107120Sjulian * notice, this list of conditions and the following disclaimer in the 14107120Sjulian * documentation and/or other materials provided with the distribution. 15107120Sjulian * 16107120Sjulian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17107120Sjulian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18107120Sjulian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19107120Sjulian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20107120Sjulian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21107120Sjulian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22107120Sjulian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23107120Sjulian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24107120Sjulian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25107120Sjulian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26107120Sjulian * SUCH DAMAGE. 27107120Sjulian * 28121054Semax * $Id: hcseriald.c,v 1.3 2003/05/21 22:40:32 max Exp $ 29107120Sjulian * $FreeBSD$ 30107120Sjulian */ 31107120Sjulian 32107120Sjulian#include <sys/types.h> 33107120Sjulian#include <sys/ioctl.h> 34107120Sjulian 35107120Sjulian#include <netgraph/ng_message.h> 36107120Sjulian#include <netgraph.h> 37121054Semax#include <netgraph/bluetooth/include/ng_h4.h> 38107120Sjulian 39107120Sjulian#include <errno.h> 40107120Sjulian#include <fcntl.h> 41107120Sjulian#include <signal.h> 42107120Sjulian#include <stdarg.h> 43107120Sjulian#include <stdio.h> 44107120Sjulian#include <stdlib.h> 45107120Sjulian#include <string.h> 46107120Sjulian#include <syslog.h> 47107120Sjulian#include <termios.h> 48107120Sjulian#include <unistd.h> 49107120Sjulian 50107120Sjulian/* Prototypes */ 51107120Sjulianstatic int open_device (char const *, speed_t, char const *); 52107120Sjulianstatic void sighandler (int); 53107120Sjulianstatic void usage (); 54107120Sjulian 55107120Sjulianstatic char const * const hcseriald = "hcseriald"; 56107120Sjulianstatic int done = 0; 57107120Sjulian 58107120Sjulianint 59107120Sjulianmain(int argc, char *argv[]) 60107120Sjulian{ 61107120Sjulian char *device = NULL, *name = NULL; 62107120Sjulian speed_t speed = 115200; 63107120Sjulian int n, detach = 1; 64107120Sjulian char p[FILENAME_MAX]; 65107120Sjulian FILE *f = NULL; 66107120Sjulian struct sigaction sa; 67107120Sjulian 68107120Sjulian /* Process command line arguments */ 69114879Sjulian while ((n = getopt(argc, argv, "df:n:s:h")) != -1) { 70107120Sjulian switch (n) { 71107120Sjulian case 'd': 72107120Sjulian detach = 0; 73107120Sjulian break; 74107120Sjulian 75107120Sjulian case 'f': 76107120Sjulian device = optarg; 77107120Sjulian break; 78107120Sjulian 79107120Sjulian case 'n': 80107120Sjulian name = optarg; 81107120Sjulian break; 82107120Sjulian 83107120Sjulian case 's': 84107120Sjulian speed = atoi(optarg); 85107120Sjulian if (speed < 0) 86107120Sjulian usage(argv[0]); 87107120Sjulian break; 88107120Sjulian 89114879Sjulian case 'h': 90107120Sjulian default: 91107120Sjulian usage(argv[0]); 92107120Sjulian break; 93107120Sjulian } 94107120Sjulian } 95107120Sjulian 96107120Sjulian if (device == NULL || name == NULL) 97107120Sjulian usage(argv[0]); 98107120Sjulian 99107120Sjulian openlog(hcseriald, LOG_PID | LOG_NDELAY, LOG_USER); 100107120Sjulian 101107120Sjulian /* Open device */ 102107120Sjulian n = open_device(device, speed, name); 103107120Sjulian 104188130Semax if (detach && daemon(0, 0) < 0) { 105188130Semax syslog(LOG_ERR, "Could not daemon(0, 0). %s (%d)", 106188130Semax strerror(errno), errno); 107188130Semax exit(1); 108107120Sjulian } 109107120Sjulian 110107120Sjulian /* Write PID file */ 111107120Sjulian snprintf(p, sizeof(p), "/var/run/%s.%s.pid", hcseriald, name); 112107120Sjulian f = fopen(p, "w"); 113107120Sjulian if (f == NULL) { 114107120Sjulian syslog(LOG_ERR, "Could not fopen(%s). %s (%d)", 115107120Sjulian p, strerror(errno), errno); 116107120Sjulian exit(1); 117107120Sjulian } 118107120Sjulian fprintf(f, "%d", getpid()); 119107120Sjulian fclose(f); 120107120Sjulian 121107120Sjulian /* Install signal handler */ 122107120Sjulian memset(&sa, 0, sizeof(sa)); 123107120Sjulian sa.sa_handler = sighandler; 124107120Sjulian 125107120Sjulian if (sigaction(SIGTERM, &sa, NULL) < 0) { 126107120Sjulian syslog(LOG_ERR, "Could not sigaction(SIGTERM). %s (%d)", 127107120Sjulian strerror(errno), errno); 128107120Sjulian exit(1); 129107120Sjulian } 130107120Sjulian 131107120Sjulian if (sigaction(SIGHUP, &sa, NULL) < 0) { 132107120Sjulian syslog(LOG_ERR, "Could not sigaction(SIGHUP). %s (%d)", 133107120Sjulian strerror(errno), errno); 134107120Sjulian exit(1); 135107120Sjulian } 136107120Sjulian 137107120Sjulian if (sigaction(SIGINT, &sa, NULL) < 0) { 138107120Sjulian syslog(LOG_ERR, "Could not sigaction(SIGINT). %s (%d)", 139107120Sjulian strerror(errno), errno); 140107120Sjulian exit(1); 141107120Sjulian } 142107120Sjulian 143107120Sjulian /* Keep running */ 144107120Sjulian while (!done) 145107120Sjulian select(0, NULL, NULL, NULL, NULL); 146107120Sjulian 147107120Sjulian /* Remove PID file and close device */ 148107120Sjulian unlink(p); 149107120Sjulian close(n); 150107120Sjulian closelog(); 151107120Sjulian 152107120Sjulian return (0); 153107120Sjulian} /* main */ 154107120Sjulian 155107120Sjulian/* Open terminal, set settings, push H4 line discipline and set node name */ 156107120Sjulianstatic int 157107120Sjulianopen_device(char const *device, speed_t speed, char const *name) 158107120Sjulian{ 159107120Sjulian int fd, disc, cs, ds; 160107120Sjulian struct termios t; 161107120Sjulian struct nodeinfo ni; 162107120Sjulian struct ngm_name n; 163122758Sharti char p[NG_NODESIZ]; 164107120Sjulian 165107120Sjulian /* Open terminal device and setup H4 line discipline */ 166107120Sjulian fd = open(device, O_RDWR|O_NOCTTY); 167107120Sjulian if (fd < 0) { 168107120Sjulian syslog(LOG_ERR, "Could not open(%s). %s (%d)", 169107120Sjulian device, strerror(errno), errno); 170107120Sjulian exit(1); 171107120Sjulian } 172107120Sjulian 173107120Sjulian tcflush(fd, TCIOFLUSH); 174107120Sjulian 175107120Sjulian if (tcgetattr(fd, &t) < 0) { 176107120Sjulian syslog(LOG_ERR, "Could not tcgetattr(%s). %s (%d)", 177107120Sjulian device, strerror(errno), errno); 178107120Sjulian exit(1); 179107120Sjulian } 180107120Sjulian 181107120Sjulian cfmakeraw(&t); 182107120Sjulian 183107120Sjulian t.c_cflag |= CLOCAL; /* clocal */ 184107120Sjulian t.c_cflag &= ~CSIZE; /* cs8 */ 185107120Sjulian t.c_cflag |= CS8; /* cs8 */ 186107120Sjulian t.c_cflag &= ~PARENB; /* -parenb */ 187107120Sjulian t.c_cflag &= ~CSTOPB; /* -cstopb */ 188107120Sjulian t.c_cflag |= CRTSCTS; /* crtscts */ 189107120Sjulian 190107120Sjulian if (tcsetattr(fd, TCSANOW, &t) < 0) { 191107120Sjulian syslog(LOG_ERR, "Could not tcsetattr(%s). %s (%d)", 192107120Sjulian device, strerror(errno), errno); 193107120Sjulian exit(1); 194107120Sjulian } 195107120Sjulian 196107120Sjulian tcflush(fd, TCIOFLUSH); 197107120Sjulian 198107120Sjulian if (cfsetspeed(&t, speed) < 0) { 199107120Sjulian syslog(LOG_ERR, "Could not cfsetspeed(%s). %s (%d)", 200107120Sjulian device, strerror(errno), errno); 201107120Sjulian exit(1); 202107120Sjulian } 203107120Sjulian 204107120Sjulian if (tcsetattr(fd, TCSANOW, &t) < 0) { 205107120Sjulian syslog(LOG_ERR, "Could not tcsetattr(%s). %s (%d)", 206107120Sjulian device, strerror(errno), errno); 207107120Sjulian exit(1); 208107120Sjulian } 209107120Sjulian 210107120Sjulian disc = H4DISC; 211107120Sjulian if (ioctl(fd, TIOCSETD, &disc) < 0) { 212107120Sjulian syslog(LOG_ERR, "Could not ioctl(%s, TIOCSETD, %d). %s (%d)", 213107120Sjulian device, disc, strerror(errno), errno); 214107120Sjulian exit(1); 215107120Sjulian } 216107120Sjulian 217107120Sjulian /* Get default name of the Netgraph node */ 218107120Sjulian memset(&ni, 0, sizeof(ni)); 219107120Sjulian if (ioctl(fd, NGIOCGINFO, &ni) < 0) { 220107120Sjulian syslog(LOG_ERR, "Could not ioctl(%d, NGIOGINFO). %s (%d)", 221107120Sjulian fd, strerror(errno), errno); 222107120Sjulian exit(1); 223107120Sjulian } 224107120Sjulian 225107120Sjulian /* Assign new name to the Netgraph node */ 226107120Sjulian snprintf(p, sizeof(p), "%s:", ni.name); 227107120Sjulian snprintf(n.name, sizeof(n.name), "%s", name); 228107120Sjulian 229107120Sjulian if (NgMkSockNode(NULL, &cs, &ds) < 0) { 230107120Sjulian syslog(LOG_ERR, "Could not NgMkSockNode(). %s (%d)", 231107120Sjulian strerror(errno), errno); 232107120Sjulian exit(1); 233107120Sjulian } 234107120Sjulian 235107120Sjulian if (NgSendMsg(cs, p, NGM_GENERIC_COOKIE, NGM_NAME, &n, sizeof(n)) < 0) { 236107120Sjulian syslog(LOG_ERR, "Could not NgSendMsg(%d, %s, NGM_NAME, %s). " \ 237107120Sjulian "%s (%d)", cs, p, n.name, strerror(errno), errno); 238107120Sjulian exit(1); 239107120Sjulian } 240107120Sjulian 241107120Sjulian close(cs); 242107120Sjulian close(ds); 243107120Sjulian 244107120Sjulian return (fd); 245107120Sjulian} /* open_device */ 246107120Sjulian 247107120Sjulian/* Signal handler */ 248107120Sjulianstatic void 249107120Sjuliansighandler(int s) 250107120Sjulian{ 251107120Sjulian done = 1; 252107120Sjulian} /* sighandler */ 253107120Sjulian 254107120Sjulian/* Usage */ 255107120Sjulianstatic void 256107120Sjulianusage(void) 257107120Sjulian{ 258114879Sjulian fprintf(stderr, "Usage: %s -f device -n node_name [-s speed -d -h]\n" \ 259107120Sjulian "Where:\n" \ 260244040Seadler "\t-f device tty device name, ex. /dev/cuau1\n" \ 261107120Sjulian "\t-n node_name set Netgraph node name to node_name\n" \ 262107120Sjulian "\t-s speed set tty speed, ex. 115200\n" \ 263114879Sjulian "\t-d run in foreground\n" \ 264114879Sjulian "\t-h display this message\n", 265107120Sjulian hcseriald); 266107120Sjulian exit(255); 267107120Sjulian} /* usage */ 268107120Sjulian 269