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Hamlib/tests/rotctld.c

752 wiersze
18 KiB
C
Czysty Wina Historia

/*
* rotctld.c - (C) Stephane Fillod 2000-2011
* (C) Nate Bargmann 2010,2011,2012,2013
*
* This program test/control a rotator using Hamlib.
* It takes commands from network connection.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <getopt.h>
#include <errno.h>
#include <signal.h>
#include <sys/types.h> /* See NOTES */
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#elif HAVE_WS2TCPIP_H
# include <ws2tcpip.h>
# include <fcntl.h>
# if defined(HAVE_WSPIAPI_H)
# include <wspiapi.h>
# endif
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_PTHREAD
# include <pthread.h>
#endif
#include <hamlib/rotator.h>
#include "misc.h"
#include "rotctl_parse.h"
struct handle_data
{
ROT *rot;
int sock;
struct sockaddr_storage cli_addr;
socklen_t clilen;
};
void *handle_socket(void *arg);
void usage();
/*
* Reminder: when adding long options,
* keep up to date SHORT_OPTIONS, usage()'s output and man page. thanks.
* NB: do NOT use -W since it's reserved by POSIX.
* TODO: add an option to read from a file
*/
#define SHORT_OPTIONS "m:r:s:C:o:O:t:T:LuvhVlZ"
static struct option long_options[] =
{
{"model", 1, 0, 'm'},
{"rot-file", 1, 0, 'r'},
{"serial-speed", 1, 0, 's'},
{"port", 1, 0, 't'},
{"listen-addr", 1, 0, 'T'},
{"list", 0, 0, 'l'},
{"set-conf", 1, 0, 'C'},
{"set-azoffset", 1, 0, 'o'},
{"set-eloffset", 1, 0, 'O'},
{"show-conf", 0, 0, 'L'},
{"dump-caps", 0, 0, 'u'},
{"debug-time-stamps", 0, 0, 'Z'},
{"verbose", 0, 0, 'v'},
{"help", 0, 0, 'h'},
{"version", 0, 0, 'V'},
{0, 0, 0, 0}
};
const char *portno = "4533";
const char *src_addr = NULL; /* INADDR_ANY */
azimuth_t az_offset;
elevation_t el_offset;
#define MAXCONFLEN 1024
static void handle_error(enum rig_debug_level_e lvl, const char *msg)
{
int e;
#ifdef __MINGW32__
LPVOID lpMsgBuf;
lpMsgBuf = (LPVOID)"Unknown error";
e = WSAGetLastError();
if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
e,
// Default language
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL))
{
rig_debug(lvl, "%s: Network error %d: %s\n", msg, e, (char *)lpMsgBuf);
LocalFree(lpMsgBuf);
}
else
{
rig_debug(lvl, "%s: Network error %d\n", msg, e);
}
#else
e = errno;
rig_debug(lvl, "%s: Network error %d: %s\n", msg, e, strerror(e));
#endif
}
int main(int argc, char *argv[])
{
ROT *my_rot; /* handle to rot (instance) */
rot_model_t my_model = ROT_MODEL_DUMMY;
int retcode; /* generic return code from functions */
int verbose = 0;
int show_conf = 0;
int dump_caps_opt = 0;
const char *rot_file = NULL;
int serial_rate = 0;
char conf_parms[MAXCONFLEN] = "";
struct addrinfo hints, *result, *saved_result;
int sock_listen;
int reuseaddr = 1;
char host[NI_MAXHOST];
char serv[NI_MAXSERV];
#ifdef HAVE_PTHREAD
pthread_t thread;
pthread_attr_t attr;
#endif
struct handle_data *arg;
while (1)
{
int c;
int option_index = 0;
char dummy[2];
c = getopt_long(argc, argv, SHORT_OPTIONS, long_options, &option_index);
if (c == -1)
{
break;
}
switch (c)
{
case 'h':
usage();
exit(0);
case 'V':
version();
exit(0);
case 'm':
if (!optarg)
{
usage(); /* wrong arg count */
exit(1);
}
my_model = atoi(optarg);
break;
case 'r':
if (!optarg)
{
usage(); /* wrong arg count */
exit(1);
}
rot_file = optarg;
break;
case 's':
if (!optarg)
{
usage(); /* wrong arg count */
exit(1);
}
if (sscanf(optarg, "%d%1s", &serial_rate, dummy) != 1)
{
fprintf(stderr, "Invalid baud rate of %s\n", optarg);
exit(1);
}
break;
case 'C':
if (!optarg)
{
usage(); /* wrong arg count */
exit(1);
}
if (*conf_parms != '\0')
{
strcat(conf_parms, ",");
}
if (strlen(conf_parms) + strlen(optarg) > MAXCONFLEN - 24)
{
printf("Length of conf_parms exceeds internal maximum of %d\n",
MAXCONFLEN - 24);
return 1;
}
strncat(conf_parms, optarg, MAXCONFLEN - strlen(conf_parms));
break;
case 't':
if (!optarg)
{
usage(); /* wrong arg count */
exit(1);
}
portno = optarg;
break;
case 'T':
if (!optarg)
{
usage(); /* wrong arg count */
exit(1);
}
src_addr = optarg;
break;
case 'o':
if (!optarg)
{
usage(); /* wrong arg count */
exit(1);
}
az_offset = atof(optarg);
break;
case 'O':
if (!optarg)
{
usage(); /* wrong arg count */
exit(1);
}
el_offset = atof(optarg);
case 'v':
verbose++;
break;
case 'L':
show_conf++;
break;
case 'l':
list_models();
exit(0);
case 'u':
dump_caps_opt++;
break;
case 'Z':
rig_set_debug_time_stamp(1);
break;
default:
usage(); /* unknown option? */
exit(1);
}
}
rig_set_debug(verbose);
rig_debug(RIG_DEBUG_VERBOSE, "rotctld, %s\n", hamlib_version);
rig_debug(RIG_DEBUG_VERBOSE, "%s",
"Report bugs to <hamlib-developer@lists.sourceforge.net>\n\n");
my_rot = rot_init(my_model);
if (!my_rot)
{
fprintf(stderr,
"Unknown rot num %d, or initialization error.\n",
my_model);
fprintf(stderr, "Please check with --list option.\n");
exit(2);
}
retcode = set_conf(my_rot, conf_parms);
if (retcode != RIG_OK)
{
fprintf(stderr, "Config parameter error: %s\n", rigerror(retcode));
exit(2);
}
if (rot_file)
{
strncpy(my_rot->state.rotport.pathname, rot_file, FILPATHLEN - 1);
}
/* FIXME: bound checking and port type == serial */
if (serial_rate != 0)
{
my_rot->state.rotport.parm.serial.rate = serial_rate;
}
/*
* print out conf parameters
*/
if (show_conf)
{
rot_token_foreach(my_rot, print_conf_list, (rig_ptr_t)my_rot);
}
/*
* Print out conf parameters, and exits immediately as we may be
* interested only in only caps, and rig_open may fail.
*/
if (dump_caps_opt)
{
dumpcaps_rot(my_rot, stdout);
rot_cleanup(my_rot); /* if you care about memory */
exit(0);
}
retcode = rot_open(my_rot);
if (retcode != RIG_OK)
{
fprintf(stderr, "rot_open: error = %s \n", rigerror(retcode));
exit(2);
}
my_rot->state.az_offset = az_offset;
my_rot->state.el_offset = el_offset;
if (verbose > 0)
{
printf("Opened rot model %d, '%s'\n",
my_rot->caps->rot_model,
my_rot->caps->model_name);
}
rig_debug(RIG_DEBUG_VERBOSE,
"Backend version: %s, Status: %s\n",
my_rot->caps->version,
rig_strstatus(my_rot->caps->status));
#ifdef __MINGW32__
# ifndef SO_OPENTYPE
# define SO_OPENTYPE 0x7008
# endif
# ifndef SO_SYNCHRONOUS_NONALERT
# define SO_SYNCHRONOUS_NONALERT 0x20
# endif
# ifndef INVALID_SOCKET
# define INVALID_SOCKET -1
# endif
WSADATA wsadata;
if (WSAStartup(MAKEWORD(1, 1), &wsadata) == SOCKET_ERROR)
{
fprintf(stderr, "WSAStartup socket error\n");
exit(1);
}
{
// braced to prevent cppcheck warning
int sockopt = SO_SYNCHRONOUS_NONALERT;
setsockopt(INVALID_SOCKET,
SOL_SOCKET,
SO_OPENTYPE,
(char *)&sockopt,
sizeof(sockopt));
}
#endif
/*
* Prepare listening socket
*/
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_UNSPEC; /* Allow IPv4 or IPv6 */
hints.ai_socktype = SOCK_STREAM; /* TCP socket */
hints.ai_flags = AI_PASSIVE; /* For wildcard IP address */
hints.ai_protocol = 0; /* Any protocol */
retcode = getaddrinfo(src_addr, portno, &hints, &result);
if (retcode != 0)
{
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(retcode));
exit(2);
}
saved_result = result;
do
{
sock_listen = socket(result->ai_family,
result->ai_socktype,
result->ai_protocol);
if (sock_listen < 0)
{
handle_error(RIG_DEBUG_ERR, "socket");
freeaddrinfo(result); /* No longer needed */
exit(1);
}
if (setsockopt(sock_listen, SOL_SOCKET, SO_REUSEADDR,
(char *)&reuseaddr, sizeof(reuseaddr)) < 0)
{
handle_error(RIG_DEBUG_ERR, "setsockopt");
freeaddrinfo(result); /* No longer needed */
exit(1);
}
#ifdef IPV6_V6ONLY
if (AF_INET6 == result->ai_family)
{
/* allow IPv4 mapped to IPv6 clients, MS & BSD default this
to 1 i.e. disallowed */
int sockopt = 0;
if (setsockopt(sock_listen,
IPPROTO_IPV6,
IPV6_V6ONLY,
(char *)&sockopt,
sizeof(sockopt))
< 0)
{
handle_error(RIG_DEBUG_ERR, "setsockopt");
freeaddrinfo(saved_result); /* No longer needed */
exit(1);
}
}
#endif
if (0 == bind(sock_listen, result->ai_addr, result->ai_addrlen))
{
break;
}
handle_error(RIG_DEBUG_WARN, "binding failed (trying next interface)");
#ifdef __MINGW32__
closesocket(sock_listen);
#else
close(sock_listen);
#endif
}
while ((result = result->ai_next) != NULL);
freeaddrinfo(saved_result); /* No longer needed */
if (NULL == result)
{
rig_debug(RIG_DEBUG_ERR, "%s: bind error - no available interface\n", __func__);
exit(1);
}
if (listen(sock_listen, 4) < 0)
{
handle_error(RIG_DEBUG_ERR, "listening");
exit(1);
}
#ifdef SIGPIPE
/* Ignore SIGPIPE as we will handle it at the write()/send() calls
that will consequently fail with EPIPE. All child threads will
inherit this disposition which is what we want. */
#if HAVE_SIGACTION
{
struct sigaction act;
memset(&act, 0, sizeof act);
act.sa_handler = SIG_IGN;
act.sa_flags = SA_RESTART;
if (sigaction(SIGPIPE, &act, NULL))
{
handle_error(RIG_DEBUG_ERR, "sigaction");
}
}
#elif HAVE_SIGNAL
if (SIG_ERR == signal(SIGPIPE, SIG_IGN))
{
handle_error(RIG_DEBUG_ERR, "signal");
}
#endif
#endif
/*
* main loop accepting connections
*/
do
{
arg = malloc(sizeof(struct handle_data));
if (!arg)
{
rig_debug(RIG_DEBUG_ERR, "malloc: %s\n", strerror(errno));
exit(1);
}
arg->rot = my_rot;
arg->clilen = sizeof(arg->cli_addr);
arg->sock = accept(sock_listen,
(struct sockaddr *) &arg->cli_addr,
&arg->clilen);
if (arg->sock < 0)
{
handle_error(RIG_DEBUG_ERR, "accept");
break;
}
if ((retcode = getnameinfo((struct sockaddr const *)&arg->cli_addr,
arg->clilen,
host,
sizeof(host),
serv,
sizeof(serv),
NI_NOFQDN))
< 0)
{
rig_debug(RIG_DEBUG_WARN,
"Peer lookup error: %s",
gai_strerror(retcode));
}
rig_debug(RIG_DEBUG_VERBOSE,
"Connection opened from %s:%s\n",
host,
serv);
#ifdef HAVE_PTHREAD
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
retcode = pthread_create(&thread, &attr, handle_socket, arg);
if (retcode != 0)
{
rig_debug(RIG_DEBUG_ERR, "pthread_create: %s\n", strerror(retcode));
break;
}
#else
handle_socket(arg);
#endif
}
while (retcode == 0);
rot_close(my_rot); /* close port */
rot_cleanup(my_rot); /* if you care about memory */
#ifdef __MINGW32__
WSACleanup();
#endif
return 0;
}
/*
* This is the function run by the threads
*/
void *handle_socket(void *arg)
{
struct handle_data *handle_data_arg = (struct handle_data *)arg;
FILE *fsockin;
FILE *fsockout;
int retcode;
char host[NI_MAXHOST];
char serv[NI_MAXSERV];
#ifdef __MINGW32__
int sock_osfhandle = _open_osfhandle(handle_data_arg->sock, _O_RDONLY);
if (sock_osfhandle == -1)
{
rig_debug(RIG_DEBUG_ERR, "_open_osfhandle error: %s\n", strerror(errno));
goto handle_exit;
}
fsockin = _fdopen(sock_osfhandle, "rb");
#else
fsockin = fdopen(handle_data_arg->sock, "rb");
#endif
if (!fsockin)
{
rig_debug(RIG_DEBUG_ERR, "fdopen in: %s\n", strerror(errno));
goto handle_exit;
}
#ifdef __MINGW32__
fsockout = _fdopen(sock_osfhandle, "wb");
#else
fsockout = fdopen(handle_data_arg->sock, "wb");
#endif
if (!fsockout)
{
rig_debug(RIG_DEBUG_ERR, "fdopen out: %s\n", strerror(errno));
fclose(fsockin);
goto handle_exit;
}
do
{
retcode = rotctl_parse(handle_data_arg->rot, fsockin, fsockout, NULL, 0, 1, 0,
'\r');
if (ferror(fsockin) || ferror(fsockout))
{
retcode = 1;
}
}
while (retcode == 0 || retcode == 2);
if ((retcode = getnameinfo((struct sockaddr const *)&handle_data_arg->cli_addr,
handle_data_arg->clilen,
host,
sizeof(host),
serv,
sizeof(serv),
NI_NOFQDN))
< 0)
{
rig_debug(RIG_DEBUG_WARN,
"Peer lookup error: %s",
gai_strerror(retcode));
}
rig_debug(RIG_DEBUG_VERBOSE,
"Connection closed from %s:%s\n",
host,
serv);
fclose(fsockin);
#ifndef __MINGW32__
fclose(fsockout);
#endif
handle_exit:
#ifdef __MINGW32__
closesocket(handle_data_arg->sock);
#else
close(handle_data_arg->sock);
#endif
free(arg);
#ifdef HAVE_PTHREAD
pthread_exit(NULL);
#endif
return NULL;
}
void usage()
{
printf("Usage: rotctld [OPTION]... [COMMAND]...\n"
"Daemon serving COMMANDs to a connected antenna rotator.\n\n");
printf(
" -m, --model=ID select rotator model number. See model list\n"
" -r, --rot-file=DEVICE set device of the rotator to operate on\n"
" -s, --serial-speed=BAUD set serial speed of the serial port\n"
" -t, --port=NUM set TCP listening port, default %s\n"
" -T, --listen-addr=IPADDR set listening IP address, default ANY\n"
" -C, --set-conf=PARM=VAL set config parameters\n"
" -o, --set-azoffset==VAL set offset for azimuth\n"
" -O, --set-eloffset==VAL set offset for elevation\n"
" -L, --show-conf list all config parameters\n"
" -l, --list list all model numbers and exit\n"
" -u, --dump-caps dump capabilities and exit\n"
" -v, --verbose set verbose mode, cumulative\n"
" -Z, --debug-time-stamps enable time stamps for debug messages\n"
" -h, --help display this help and exit\n"
" -V, --version output version information and exit\n\n",
portno);
usage_rot(stdout);
printf("\nReport bugs to <hamlib-developer@lists.sourceforge.net>.\n");
}
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