+++ /dev/null
-/*
- $Id$
-
- G N O K I I
-
- A Linux/Unix toolset and driver for Nokia mobile phones.
-
- Released under the terms of the GNU GPL, see file COPYING for more details.
-
- This file provides a virtual modem interface to the GSM phone by calling
- code in gsm-api.c, at-emulator.c and datapump.c. The code here provides
- the overall framework and coordinates switching between command mode
- (AT-emulator) and "online" mode where the data pump code translates data
- from/to the GSM handset and the modem data/fax stream.
-
-*/
-
-#define __virtmodem_c
-
-#include <config.h>
-
-/* This is the right way to include stdlib with __USE_XOPEN defined */
-#ifdef USE_UNIX98PTYS
-# define _XOPEN_SOURCE 500
-# include <features.h>
-#endif
-
-#include <stdio.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <termios.h>
-#include <grp.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/poll.h>
-#include <pthread.h>
-#include <unistd.h>
-
-#include "misc.h"
-#include "gsm-api.h"
-#include "gsm-common.h"
-#include "data/at-emulator.h"
-#include "data/datapump.h"
-#include "data/virtmodem.h"
-#include "data/rlp-common.h"
-
- /* Global variables */
-
-//extern bool TerminateThread;
-int ConnectCount;
-
- /* Local variables */
-
-int PtyRDFD; /* File descriptor for reading and writing to/from */
-int PtyWRFD; /* pty interface - only different in debug mode. */
-
-bool UseSTDIO; /* Use STDIO for debugging purposes instead of pty */
-bool CommandMode;
-
-pthread_t Thread;
-bool RequestTerminate;
-
-
- /* If initialised in debug mode, stdin/out is used instead
- of ptys for interface. */
-bool VM_Initialise(char *model,char *port, char *initlength, GSM_ConnectionType connection, char *bindir, bool debug_mode, bool GSMInit,char *synchronizetime)
-{
- int rtn;
-
- CommandMode = true;
-
- RequestTerminate = false;
-
- if (debug_mode == true) {
- UseSTDIO = true;
- }
- else {
- UseSTDIO = false;
- }
-
- if (GSMInit) {
-#ifdef DEBUG
- fprintf (stderr , "Initialising GSM\n");
-#endif /* DEBUG */
- if ((VM_GSMInitialise(model, port, initlength, connection, synchronizetime) != GE_NONE)) {
- fprintf (stderr, _("VM_Initialise - VM_GSMInitialise failed!\n"));
- return (false);
-
- }
- }
- GSMInit=false;
-
- if (VM_PtySetup(bindir) < 0) {
- fprintf (stderr, _("VM_Initialise - VM_PtySetup failed!\n"));
- return (false);
- }
-
- if (ATEM_Initialise(PtyRDFD, PtyWRFD, model, port) != true) {
- fprintf (stderr, _("VM_Initialise - ATEM_Initialise failed!\n"));
- return (false);
- }
-
- if (DP_Initialise(PtyRDFD, PtyWRFD) != true) {
- fprintf (stderr, _("VM_Initialise - DP_Initialise failed!\n"));
- return (false);
- }
-
- /* Create and start thread, */
- rtn = pthread_create(&Thread, NULL, (void *) VM_ThreadLoop, (void *)NULL);
-
- if (rtn == EAGAIN || rtn == EINVAL) {
- return (false);
- }
- return (true);
-}
-
-void VM_ThreadLoop(void)
-{
- int res;
- struct pollfd ufds;
-
- /* Note we can't use signals here as they are already used
- in the FBUS code. This may warrant changing the FBUS
- code around sometime to use select instead to free up
- the SIGIO handler for mainline code. */
-
- ufds.fd=PtyRDFD;
- ufds.events=POLLIN;
-
- while (!RequestTerminate) {
- if (!CommandMode) {
- sleep(1);
- } else { /* If we are in data mode, leave it to datapump to get the data */
-
- res=poll(&ufds,1,500);
-
- switch (res) {
- case 0: /* Timeout */
- break;
-
- case -1:
- perror("VM_ThreadLoop - select");
- exit (-1);
-
- default:
- if (ufds.revents==POLLIN) {
- VM_CharHandler();
- } else usleep(500); /* Probably the file has been closed */
- break;
- }
- }
- }
-
-}
-
- /* Application should call VM_Terminate to shut down
- the virtual modem thread */
-void VM_Terminate(void)
-{
-
- /* Request termination of thread */
- RequestTerminate = true;
-
- /* Now wait for thread to terminate. */
- pthread_join(Thread, NULL);
-
- if (!UseSTDIO) {
- close (PtyRDFD);
- close (PtyWRFD);
- }
-}
-
- /* Open pseudo tty interface and (in due course create a symlink
- to be /dev/gnokii etc. ) */
-
-int VM_PtySetup(char *bindir)
-{
- int err;
- char mgnokiidev[200];
- char *slave_name;
- char cmdline[200];
-
- if (bindir) {
- strncpy(mgnokiidev, bindir, 200);
- strcat(mgnokiidev, "/");
- }
- strncat(mgnokiidev, "mgnokiidev", 200 - strlen(bindir));
-
- if (UseSTDIO) {
- PtyRDFD = STDIN_FILENO;
- PtyWRFD = STDOUT_FILENO;
- return (0);
- }
-
- PtyRDFD = VM_GetMasterPty(&slave_name);
- if (PtyRDFD < 0) {
- fprintf (stderr, _("Couldn't open pty!\n"));
- return(-1);
- }
- PtyWRFD = PtyRDFD;
-
- /* Check we haven't been installed setuid root for some reason
- if so, don't create /dev/gnokii */
- if (getuid() != geteuid()) {
- fprintf(stderr, _("gnokiid should not be installed setuid root!\n"));
- return (0);
- }
-
-#ifdef DEBUG
- fprintf (stderr, _("Slave pty is %s, calling %s to create /dev/gnokii.\n"), slave_name, mgnokiidev);
-#endif /* DEBUG */
-
- /* Create command line, something line ./mkgnokiidev ttyp0 */
- sprintf(cmdline, "%s %s", mgnokiidev, slave_name);
-
- /* And use system to call it. */
- err = system (cmdline);
-
- return (err);
-
-}
-
- /* Handler called when characters received from serial port.
- calls state machine code to process it. */
-void VM_CharHandler(void)
-{
- unsigned char buffer[255];
- int res;
-
-
- /* If we are in command mode, get the character, otherwise leave it */
-
- if (CommandMode && ATEM_Initialised) {
-
- res = read(PtyRDFD, buffer, 255);
-
- /* A returned value of -1 means something serious has gone wrong - so quit!! */
- /* Note that file closure etc. should have been dealt with in ThreadLoop */
-
- if (res < 0) {
-// TerminateThread=true;
- return;
- }
-
- ATEM_HandleIncomingData(buffer, res);
- }
-}
-
- /* Initialise GSM interface, returning GSM_Error as appropriate */
-GSM_Error VM_GSMInitialise(char *model, char *port, char *initlength, GSM_ConnectionType connection, char *synchronizetime)
-{
- int count=0;
- GSM_Error error;
-
- /* Initialise the code for the GSM interface. */
-
- error = GSM_Initialise(model,port, initlength, connection, RLP_DisplayF96Frame, synchronizetime);
-
- if (error != GE_NONE) {
- fprintf(stderr, _("GSM/FBUS init failed! (Unknown model ?). Quitting.\n"));
- return (error);
- }
-
- /* First (and important!) wait for GSM link to be active. We allow 10
- seconds... */
-
- while (count++ < 200 && *GSM_LinkOK == false) {
- usleep(50000);
- }
-
- if (*GSM_LinkOK == false) {
- fprintf (stderr, _("Hmmm... GSM_LinkOK never went true. Quitting. \n"));
- return (GE_NOLINK);
- }
-
- return (GE_NONE);
-}
-
-/* VM_GetMasterPty()
- Takes a double-indirect character pointer in which to put a slave
- name, and returns an integer file descriptor. If it returns < 0, an
- error has occurred. Otherwise, it has returned the master pty
- file descriptor, and fills in *name with the name of the
- corresponding slave pty. Once the slave pty has been opened,
- you are responsible to free *name. Code is from Developling Linux
- Applications by Troan and Johnson */
-
-
-int VM_GetMasterPty(char **name) {
-
-#ifdef USE_UNIX98PTYS
- int master, err;
-
- master = open("/dev/ptmx", O_RDWR | O_NOCTTY | O_NONBLOCK);
- if (master >= 0) {
- err = grantpt(master);
- err = err || unlockpt(master);
- if (!err) {
- *name = ptsname(master);
- } else {
- return(-1);
- }
- }
-#else /* USE_UNIX98PTYS */
- int i = 0 , j = 0;
- /* default to returning error */
- int master = -1;
-
- /* create a dummy name to fill in */
- *name = strdup("/dev/ptyXX");
-
- /* search for an unused pty */
- for (i=0; i<16 && master <= 0; i++) {
- for (j=0; j<16 && master <= 0; j++) {
- (*name)[8] = "pqrstuvwxyzPQRST"[i];
- (*name)[9] = "0123456789abcdef"[j];
- /* open the master pty */
- if ((master = open(*name, O_RDWR | O_NOCTTY | O_NONBLOCK )) < 0) {
- if (errno == ENOENT) {
- /* we are out of pty devices */
- free (*name);
- return (master);
- }
- }
- }
- }
- if ((master < 0) && (i == 16) && (j == 16)) {
- /* must have tried every pty unsuccessfully */
- free (*name);
- return (master);
- }
-
- /* By substituting a letter, we change the master pty
- * name into the slave pty name.
- */
- (*name)[5] = 't';
-
-#endif /* USE_UNIX98PTYS */
-
- return (master);
-}
-
git://git.jankratochvil.net / gnokii.git / blobdiff