gsm_conf.c

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** PBX4Linux                                                                 **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** reading options.conf and filling structure                                **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13
  14
  15 char *gsm_conf_error = (char *)"";
  16
  17 /* read options
  18  *
  19  * read options from options.conf
  20  */
  21 int gsm_conf(struct gsm_conf *gsm_conf)
  22 {
  23         FILE *fp=NULL;
  24         char filename[128];
  25         char *p;
  26         char option[32];
  27         char params[11][256];
  28         int pnum;
  29         unsigned int line,i;
  30         char buffer[256];
  31
  32         /* set defaults */
  33         SCPY(gsm_conf->debug, "");
  34         SCPY(gsm_conf->interface_bsc, "mISDN_l1loop.1");
  35         SCPY(gsm_conf->interface_lcr, "mISDN_l1loop.2");
  36         SCPY(gsm_conf->hlr, "hlr.sqlite3");
  37         SCPY(gsm_conf->openbsc_cfg, "openbsc.cfg");
  38         gsm_conf->reject_cause = 0;
  39         gsm_conf->keep_l2 = 0;
  40         gsm_conf->noemergshut = 0;
  41
  42         SPRINT(filename, "%s/gsm.conf", CONFIG_DATA);
  43
  44         if (!(fp=fopen(filename,"r"))) {
  45                 SPRINT(gsm_conf_error, "Cannot open %s\n",filename);
  46                 return(0);
  47         }
  48
  49         line=0;
  50         while((fgets(buffer,sizeof(buffer),fp))) {
  51                 line++;
  52                 buffer[sizeof(buffer)-1]=0;
  53                 if (buffer[0]) buffer[strlen(buffer)-1]=0;
  54                 p=buffer;
  55
  56                 while(*p <= 32) { /* skip spaces */
  57                         if (*p == 0)
  58                                 break;
  59                         p++;
  60                 }
  61                 if (*p==0 || *p=='#') /* ignore comments and empty line */
  62                         continue;
  63
  64                 option[0]=0;
  65                 i=0; /* read option */
  66                 while(*p > 32) {
  67                         if (i+1 >= sizeof(option)) {
  68                                 SPRINT(gsm_conf_error, "Error in %s (line %d): option too long.\n",filename,line);
  69                                 goto error;
  70                         }
  71                         option[i+1] = '\0';
  72                         option[i++] = *p++;
  73                 }
  74
  75                 while(*p <= 32) { /* skip spaces */
  76                         if (*p == 0)
  77                                 break;
  78                         p++;
  79                 }
  80
  81                 params[0][0] = 0;
  82                 pnum = 0;
  83                 while(*p!=0 && *p!='#' && pnum < 10) { /* param */
  84                         i=0; /* read param */
  85                         while(*p > 32) {
  86                                 if (i+1 >= sizeof(params[pnum])) {
  87                                         SPRINT(gsm_conf_error, "Error in %s (line %d): param too long.\n",filename,line);
  88                                         goto error;
  89                                 }
  90                                 params[pnum][i+1] = '\0';
  91                                 params[pnum][i++] = *p++;
  92                         }
  93                         while(*p <= 32) { /* skip spaces */
  94                                 if (*p == 0)
  95                                         break;
  96                                 p++;
  97                         }
  98                         pnum++;
  99                         params[pnum][0] = 0;
 100                 }
 101
 102                 /* at this point we have option and param */
 103
 104                 /* check option */
 105                 if (!strcmp(option,"debug")) {
 106                         if (params[0][0]==0) {
 107                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 108                                 goto error;
 109                         }
 110                         SCPY(gsm_conf->debug, params[0]);
 111
 112                 } else
 113                 if (!strcmp(option,"interface-bsc")) {
 114                         if (params[0][0]==0) {
 115                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 116                                 goto error;
 117                         }
 118                         SCPY(gsm_conf->interface_bsc, params[0]);
 119
 120                 } else
 121                 if (!strcmp(option,"interface-lcr")) {
 122                         if (params[0][0]==0) {
 123                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 124                                 goto error;
 125                         }
 126                         SCPY(gsm_conf->interface_lcr, params[0]);
 127
 128                 } else
 129                 if (!strcmp(option,"config")) {
 130                         if (params[0][0]==0) {
 131                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 132                                 goto error;
 133                         }
 134                         SCPY(gsm_conf->openbsc_cfg, params[0]);
 135
 136                 } else
 137                 if (!strcmp(option,"hlr")) {
 138                         if (params[0][0]==0) {
 139                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 140                                 goto error;
 141                         }
 142                         SCPY(gsm_conf->hlr, params[0]);
 143
 144                 } else
 145                 if (!strcmp(option,"reject-cause")) {
 146                         if (params[0][0]==0) {
 147                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 148                                 goto error;
 149                         }
 150                         gsm_conf->reject_cause = atoi(params[0]);
 151
 152                 } else
 153                 if (!strcmp(option,"allow-all")) {
 154                         gsm_conf->allow_all = 1;
 155                 } else
 156                 if (!strcmp(option,"keep-l2")) {
 157                         gsm_conf->keep_l2 = 1;
 158
 159                 } else
 160                 if (!strcmp(option,"no-mergency-shutdown")) {
 161                         gsm_conf->noemergshut = 1;
 162                 } else
 163                 if (!strcmp(option,"rtp-proxy")) {
 164                         gsm_conf->rtp_proxy = 1;
 165                 } else
 166                 if (!strcmp(option,"pcapfile")) {
 167                         if (params[0][0]==0) {
 168                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 169                                 goto error;
 170                         }
 171                         SCPY(gsm_conf->pcapfile, params[0]);
 172                 } else {
 173                         SPRINT(gsm_conf_error, "Error in %s (line %d): wrong option keyword %s.\n", filename,line,option);
 174                         goto error;
 175                 }
 176         }
 177
 178         if (fp) fclose(fp);
 179         return(1);
 180 error:
 181         if (fp) fclose(fp);
 182         return(0);
 183 }
 184
 185