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-rw-r--r--ax25ipd/config.c404
1 files changed, 404 insertions, 0 deletions
diff --git a/ax25ipd/config.c b/ax25ipd/config.c
new file mode 100644
index 0000000..243b82c
--- /dev/null
+++ b/ax25ipd/config.c
@@ -0,0 +1,404 @@
+/* config.c config file manipulation routines
+ *
+ * Copyright 1991, Michael Westerhof, Sun Microsystems, Inc.
+ * This software may be freely used, distributed, or modified, providing
+ * this header is not removed.
+ *
+ */
+
+/*
+ * Modifications made for dual port TNC's
+ * by Michael Durrant and D. Jeff Dionne February 4, 1995
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <netdb.h>
+#include <memory.h>
+#include <fcntl.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include "ax25ipd.h"
+
+/* Initialize the config table */
+void
+config_init()
+{
+ int i;
+
+ *ttydevice = '\0';
+ for(i=0;i<7;i++)mycallsign[i]='\0';
+ for(i=0;i<7;i++)myalias[i]='\0';
+ for(i=0;i<7;i++)mycallsign2[i]='\0';
+ for(i=0;i<7;i++)myalias2[i]='\0';
+ digi = 1;
+ ttyspeed = 9600;
+ loglevel = 0;
+ bc_interval = 0;
+ bc_text[0]='\0';
+ bc_every = 0;
+ my_udp = htons(0);
+ udp_mode = 0;
+ ip_mode = 0;
+ dual_port = 0;
+
+ stats.kiss_in = 0;
+ stats.kiss_toobig = 0;
+ stats.kiss_badtype = 0;
+ stats.kiss_tooshort = 0;
+ stats.kiss_not_for_me = 0;
+ stats.kiss_i_am_dest = 0;
+ stats.kiss_no_ip_addr = 0;
+ stats.kiss_out = 0;
+ stats.kiss_beacon_outs = 0;
+ stats.udp_in = 0;
+ stats.udp_out = 0;
+ stats.ip_in = 0;
+ stats.ip_out = 0;
+ stats.ip_failed_crc = 0;
+ stats.ip_tooshort = 0;
+ stats.ip_not_for_me = 0;
+ stats.ip_i_am_dest = 0;
+}
+
+/* Open and read the config file */
+
+void
+config_read(f)
+char *f;
+{
+ FILE *cf;
+ char buf[256], cbuf[256];
+ int errflag, e, lineno;
+ char *fname;
+
+ if (f) fname = f;
+ else fname = CONF_AX25IPD_FILE;
+
+ if((cf = fopen(fname,"r"))==NULL) {
+ fprintf(stderr,"Config file %s not found or could not be opened\n",fname);
+ exit(1);
+ }
+
+ errflag = 0;
+ lineno = 0;
+ while(fgets(buf, 255, cf)!=NULL) {
+ strcpy(cbuf, buf);
+ lineno++;
+ if((e = parse_line(buf)) < 0) {
+ fprintf(stderr,"Config error at line %d: ",lineno);
+ if(e==-1)fprintf(stderr,"Missing argument\n");
+ else if(e==-2)fprintf(stderr,"Bad callsign format\n");
+ else if(e==-3)fprintf(stderr,"Bad option - on/off\n");
+ else if(e==-4)fprintf(stderr,"Bad option - tnc/digi\n");
+ else if(e==-5)fprintf(stderr,"Host not known\n");
+ else if(e==-6)fprintf(stderr,"Unknown command\n");
+ else if(e==-7)fprintf(stderr,"Text string too long\n");
+ else if(e==-8)fprintf(stderr,"Bad option - every/after\n");
+ else if(e==-9)fprintf(stderr,"Bad option - ip/udp\n");
+ else fprintf(stderr,"Unknown error\n");
+ fprintf(stderr,"%s",cbuf);
+ errflag++;
+ }
+ }
+ if(errflag)exit(1);
+
+ if(strlen(ttydevice)==0) {
+ fprintf(stderr,"No device specified in config file\n");
+ exit(1);
+ }
+
+ if((udp_mode == 0) && (ip_mode == 0)) {
+ fprintf(stderr,"Must specify ip and/or udp sockets\n");
+ exit(1);
+ }
+
+ if(digi) {
+ if(mycallsign[0]=='\0') {
+ fprintf(stderr,"No mycall line in config file\n");
+ exit(1);
+ }
+ }
+ if((digi) && (dual_port)) {
+ if(mycallsign2[0]=='\0') {
+ fprintf(stderr,"No mycall2 line in config file\n");
+ exit(1);
+ }
+ }
+}
+
+/* Process each line from the config file. The return value is encoded. */
+int
+parse_line(buf)
+char *buf;
+{
+ char *p, *q;
+ unsigned char tcall[7], tip[4];
+ struct hostent *he;
+ int i,j, uport;
+ unsigned int flags;
+
+ p = strtok(buf, " \t\n\r");
+
+ if(p==NULL)return 0;
+ if(*p=='#')return 0;
+
+ if(strcmp(p,"mycall")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ if(a_to_call(q, mycallsign)!=0)return -2;
+ return 0;
+
+ } else if(strcmp(p,"mycall2")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ if(a_to_call(q, mycallsign2)!=0)return -2;
+ return 0;
+
+ } else if(strcmp(p,"myalias")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ if(a_to_call(q, myalias)!=0)return -2;
+ dual_port = 1;
+ if(mycallsign2[0]=='\0') {
+ dual_port = 0;
+ }
+ return 0;
+
+ } else if(strcmp(p,"myalias2")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ if(a_to_call(q, myalias2)!=0)return -2;
+ return 0;
+
+ } else if(strcmp(p,"device")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ strcpy(ttydevice, q);
+ return 0;
+
+ } else if(strcmp(p,"mode")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ if(strcmp(q,"digi")==0) digi = 1;
+ else if(strcmp(q,"tnc")==0) digi = 0;
+ else return -4;
+ return 0;
+
+ } else if(strcmp(p,"speed")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ ttyspeed = atoi(q);
+ return 0;
+
+ } else if(strcmp(p,"socket")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if (q==NULL)
+ return -1;
+ if (strcmp(q,"ip")==0) {
+ ip_mode = 1;
+ }
+ else if(strcmp(q,"udp")==0) {
+ udp_mode = 1;
+ my_udp = htons(DEFAULT_UDP_PORT);
+ q = strtok(NULL, " \t\n\r");
+ if (q!=NULL) {
+ i = atoi(q);
+ if (i>0)
+ my_udp = htons(i);
+ }
+ }
+ else
+ return -9;
+ return 0;
+
+ } else if(strcmp(p,"beacon")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if (q==NULL)
+ return -1;
+
+ if (strcmp(q,"every")==0)
+ bc_every = 1;
+ else if (strcmp(q,"after")==0)
+ bc_every = 0;
+ else
+ return -8;
+
+ q = strtok(NULL, " \t\n\r");
+ if (q==NULL)
+ return -1;
+ bc_interval = atoi(q);
+ return 0;
+
+/* This next one is a hack!!!!!! watch out!!!! */
+ } else if(strcmp(p,"btext")==0) {
+ q = p + strlen(p) + 1;
+ if(strlen(q) < 2) return -1; /* line ends with a \n */
+ if(strlen(q) > sizeof bc_text)return -7;
+ q[strlen(q)-1]='\0';
+ strcpy(bc_text, q);
+ return 0;
+
+ } else if(strcmp(p,"loglevel")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ loglevel = atoi(q);
+ return 0;
+
+ } else if(strcmp(p,"route")==0) {
+ uport = 0;
+ flags = 0;
+
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)
+ return -1;
+
+ if(a_to_call(q, tcall)!=0)
+ return -2;
+
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)
+ return -1;
+ he = gethostbyname(q);
+ if(he!=NULL) {
+ memcpy(tip, he->h_addr_list[0], 4);
+ } else { /* maybe user specified a numeric addr? */
+ j = inet_addr(q);
+ if(j==-1)
+ return -5; /* if -1, bad deal! */
+ memcpy(tip, (char *)&j, 4);
+ }
+
+ while((q = strtok(NULL, " \t\n\r"))!=NULL) {
+ if(strcmp(q,"udp")==0) {
+ uport = DEFAULT_UDP_PORT;
+ q = strtok(NULL, " \t\n\r");
+ if(q!=NULL) {
+ i = atoi(q);
+ if(i>0)
+ uport = i;
+ }
+ } else {
+ /* Test for broadcast flag */
+ if (strchr(q,'b')) {
+ flags|=AXRT_BCAST;
+ }
+
+ /* Test for Default flag */
+ if (strchr(q,'d')) {
+ flags|=AXRT_DEFAULT;
+ }
+ }
+ }
+ route_add(tip, tcall, uport, flags);
+ return 0;
+
+ } else if(strcmp(p,"broadcast")==0) {
+
+ while ((q = strtok(NULL, " \t\n\r"))!=NULL) {
+ if (a_to_call(q, tcall)!=0)
+ return -2;
+ bcast_add(tcall);
+ }
+ return 0;
+
+ } else if(strcmp(p,"param")==0) {
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ i = atoi(q);
+ q = strtok(NULL, " \t\n\r");
+ if(q==NULL)return -1;
+ j = atoi(q);
+ param_add(i,j);
+ return 0;
+ }
+ return -999;
+}
+
+/* Convert ascii callsign to internal format */
+int
+a_to_call(text, tcall)
+char *text;
+unsigned char *tcall;
+{
+ int i;
+ int ssid;
+ unsigned char c;
+
+ if(strlen(text)==0)return -1;
+
+ ssid = 0;
+ for(i=0;i<6;i++) {
+ tcall[i]=(' '<<1);
+ }
+ tcall[6] = '\0';
+
+ for(i=0;i<strlen(text);i++) {
+ c = text[i];
+ if(c=='-') {
+ ssid = atoi(&text[i+1]);
+ if(ssid>15)return -1;
+ tcall[6] = (ssid<<1);
+ return 0;
+ }
+ if(islower(c))c = toupper(c);
+ if(i>5)return -1;
+ tcall[i]=(c<<1);
+ }
+ return 0;
+}
+
+/* Convert internal callsign to printable format */
+char *
+call_to_a(tcall)
+unsigned char *tcall;
+{
+ int i;
+ int ssid;
+ char *tptr;
+ static char t[10];
+
+ for(i=0,tptr=t;i<6;i++) {
+ if(tcall[i]==(' '<<1))break;
+ *tptr = tcall[i]>>1;
+ tptr++;
+ }
+
+ ssid = (tcall[6]>>1)&0x0f;
+ if(ssid>0) {
+ *tptr = '-';
+ tptr++;
+ if(ssid>9) {
+ *tptr = '1';
+ tptr++;
+ ssid -= 10;
+ }
+ *tptr = '0' + ssid;
+ tptr++;
+ }
+
+ *tptr = '\0';
+ return &t[0];
+}
+
+/* print the configuration data out */
+void
+dump_config()
+{
+ LOGL1("\nCurrent configuration:\n");
+ if(ip_mode) LOGL1(" socket ip\n");
+ if(udp_mode)LOGL1(" socket udp on port %d\n", ntohs(my_udp));
+ LOGL1(" mode %s\n", digi ? "digi" : "tnc");
+ LOGL1(" device %s\n", ttydevice);
+ LOGL1(" speed %d\n", ttyspeed);
+ if(digi)LOGL1(" mycall %s\n", call_to_a(mycallsign));
+ if(digi && myalias[0])LOGL1(" myalias %s\n", call_to_a(myalias));
+ if(bc_interval>0) {
+ LOGL1(" beacon %s %d\n", bc_every ? "every" : "after", bc_interval);
+ LOGL1(" btext %s\n", bc_text);
+ }
+ LOGL1(" loglevel %d\n", loglevel);
+ (void)fflush(stdout);
+}
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