xpp: fix manpage of astribank_hexload
[dahdi/tools.git] / hdlctest.c
1 /*
2  * Written by Mark Spencer <markster@digium.com>
3  * Based on previous works, designs, and architectures conceived and
4  * written by Jim Dixon <jim@lambdatel.com>.
5  *
6  * Copyright (C) 2001 Jim Dixon / Zapata Telephony.
7  * Copyright (C) 2001-2008 Digium, Inc.
8  *
9  * All rights reserved.
10  *
11  * Primary Author: Mark Spencer <markster@digium.com>
12  * Radio Support by Jim Dixon <jim@lambdatel.com>
13  */
14
15 /*
16  * See http://www.asterisk.org for more information about
17  * the Asterisk project. Please do not directly contact
18  * any of the maintainers of this project for assistance;
19  * the project provides a web site, mailing lists and IRC
20  * channels for your use.
21  *
22  * This program is free software, distributed under the terms of
23  * the GNU General Public License Version 2 as published by the
24  * Free Software Foundation. See the LICENSE file included with
25  * this program for more details.
26  */
27
28 #include <stdio.h>
29 #include <fcntl.h>
30 #include <string.h>
31 #include <errno.h>
32 #include <stdio.h>
33 #include <linux/types.h>
34 #include <linux/ppp_defs.h>
35 #include <sys/ioctl.h>
36 #include <unistd.h>
37 #include <stdlib.h>
38 #include <dahdi/user.h>
39
40 #define FAST_HDLC_NEED_TABLES
41 #include <dahdi/fasthdlc.h>
42
43 #include "bittest.h"
44
45 #include "dahdi_tools_version.h"
46
47 #define BLOCK_SIZE 2039
48
49 static unsigned short fcstab[256] =
50 {
51         0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
52         0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
53         0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
54         0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
55         0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
56         0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
57         0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
58         0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
59         0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
60         0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
61         0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
62         0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
63         0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
64         0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
65         0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
66         0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
67         0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
68         0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
69         0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
70         0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
71         0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
72         0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
73         0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
74         0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
75         0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
76         0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
77         0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
78         0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
79         0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
80         0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
81         0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
82         0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
83 };
84
85 #define PPP_INITFCS     0xffff  /* Initial FCS value */
86 #define PPP_GOODFCS     0xf0b8  /* Good final FCS value */
87 #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff])
88
89 void print_packet(unsigned char *buf, int len)
90 {
91         int x;
92         printf("{ ");
93         for (x = 0; x < len; x++) {
94                 printf("%02x ", buf[x]);
95         }
96         printf("}\n");
97 }
98
99 static int bytes;
100 static int errors;
101 static int c;
102
103 void dump_bits(unsigned char *outbuf, int len)
104 {
105         int x, i;
106         for (x = 0; x < len; x++) {
107                 for (i = 0; i < 8; i++) {
108                         if (outbuf[x] & (1 << (7 - i))) {
109                                 printf("1");
110                         } else {
111                                 printf("0");
112                         }
113                 }
114         }
115         printf("\n");
116 }
117
118 void dump_bitslong(unsigned int outbuf, int bits)
119 {
120         int i;
121         printf("Dumping %d bits from %04x\n", bits, outbuf);
122         for (i = 0; i < bits; i++) {
123                 if (outbuf & (1 << (31 - i))) {
124                         printf("1");
125                 } else {
126                         printf("0");
127                 }
128         }
129         printf("\n");
130 }
131
132 int check_frame(unsigned char *outbuf, int res)
133 {
134         static int setup = 0;
135         int x;
136         unsigned short fcs = PPP_INITFCS;
137         if (c < 1) {
138                 c = 1;
139         }
140         if (!setup) {
141                 c = outbuf[0];
142                 setup++;
143         }
144         for (x = 0; x < res; x++) {
145                 if (outbuf[x] != c && (x < res - 2)) {
146                         printf("(Error %d): Unexpected result, %d != %d, position %d %d bytes since last error.\n",
147                                    ++errors, outbuf[x], c, x, bytes);
148                         if (!x) {
149                                 c = outbuf[0];
150                         }
151                         bytes = 0;
152                 } else {
153                         bytes++;
154                 }
155                 fcs = PPP_FCS(fcs, outbuf[x]);
156         }
157         if (fcs != PPP_GOODFCS) {
158                 printf("FCS Check failed :( (%04x != %04x)\n", fcs, PPP_GOODFCS);
159         }
160 #if 0
161         if (res != c) {
162                 printf("Res is %d, expected %d\n", res, c+2);
163         }
164 #endif
165         c = bit_next(c);
166         return 0;
167 }
168
169 int main(int argc, char *argv[])
170 {
171         int fd;
172         int res, x;
173         struct dahdi_params tp;
174         struct dahdi_bufferinfo bi;
175         int bs = BLOCK_SIZE;
176         int pos = 0;
177         unsigned char inbuf[BLOCK_SIZE];
178         unsigned char outbuf[BLOCK_SIZE];
179         int bytes = 0;
180         int out;
181         unsigned int olddata1;
182         int oldones1;
183         int oldbits1;
184         unsigned int olddata = 0;
185         int oldones = 0;
186         int oldbits = 0;
187         int hdlcmode = 0;
188         struct fasthdlc_state fs;
189         if (argc < 2) {
190                 fprintf(stderr, "Usage: %s <DAHDI device>\n", argv[0]);
191                 exit(1);
192         }
193         fd = open(argv[1], O_RDWR, 0600);
194         if (fd < 0) {
195                 fprintf(stderr, "Unable to open %s: %s\n", argv[1], strerror(errno));
196                 exit(1);
197         }
198         if (ioctl(fd, DAHDI_SET_BLOCKSIZE, &bs)) {
199                 fprintf(stderr, "Unable to set block size to %d: %s\n", bs, strerror(errno));
200                 exit(1);
201         }
202         if (ioctl(fd, DAHDI_GET_PARAMS, &tp)) {
203                 fprintf(stderr, "Unable to get channel parameters\n");
204                 exit(1);
205         }
206         if ((tp.sigtype & DAHDI_SIG_HDLCRAW) == DAHDI_SIG_HDLCRAW) {
207                 printf("In HDLC mode\n");
208                 hdlcmode = 1;
209         } else if ((tp.sigtype & DAHDI_SIG_CLEAR) == DAHDI_SIG_CLEAR) {
210                 printf("In CLEAR mode\n");
211                 hdlcmode = 0;
212         } else {
213                 fprintf(stderr, "Not in a reasonable mode\n");
214                 exit(1);
215         }
216         res = ioctl(fd, DAHDI_GET_BUFINFO, &bi);
217         if (!res) {
218                 bi.txbufpolicy = DAHDI_POLICY_IMMEDIATE;
219                 bi.rxbufpolicy = DAHDI_POLICY_IMMEDIATE;
220                 bi.numbufs = 4;
221                 res = ioctl(fd, DAHDI_SET_BUFINFO, &bi);
222                 if (res < 0) {
223                         fprintf(stderr, "Unable to set buf info: %s\n", strerror(errno));
224                         exit(1);
225                 }
226         } else {
227                 fprintf(stderr, "Unable to get buf info: %s\n", strerror(errno));
228                 exit(1);
229         }
230         ioctl(fd, DAHDI_GETEVENT);
231         fasthdlc_precalc();
232         fasthdlc_init(&fs, FASTHDLC_MODE_64);
233         for (;;) {
234                 res = read(fd, outbuf, sizeof(outbuf));
235                 if (hdlcmode) {
236                         if (res < 0) {
237                                 if (errno == ELAST) {
238                                         if (ioctl(fd, DAHDI_GETEVENT, &x) < 0) {
239                                                 fprintf(stderr, "Unaable to get event: %s\n", strerror(errno));
240                                                 exit(1);
241                                         }
242                                         fprintf(stderr, "Event: %d (%d bytes since last error)\n", x, bytes);
243                                         bytes = 0;
244                                         continue;
245                                 } else {
246                                         fprintf(stderr, "Error: %s\n", strerror(errno));
247                                         exit(1);
248                                 }
249                         }
250 #if 0
251                         printf("Res is %d, buf0 is %d, buf1 is %d\n", res, outbuf[0], outbuf[1]);
252 #endif
253                         if (res < 2) {
254                                 fprintf(stderr, "Too small?  Only got %d bytes\n", res);
255                         }
256                         check_frame(outbuf, res);
257                 } else {
258                         for (x = 0; x < res; x++) {
259                                 oldones1 = oldones;
260                                 oldbits1 = oldbits;
261                                 olddata1 = olddata;
262                                 oldones = fs.ones;
263                                 oldbits = fs.bits;
264                                 olddata = fs.data;
265                                 fasthdlc_rx_load(&fs, outbuf[x]);
266                                 out = fasthdlc_rx_run(&fs);
267                                 if (out & RETURN_EMPTY_FLAG) {
268                                         /* Empty */
269                                 } else if (out & RETURN_COMPLETE_FLAG) {
270                                         if (pos && (pos < 2)) {
271                                                 printf("Too short? (%d)\n", pos);
272                                         } else if (pos) {
273                                                 check_frame(inbuf, pos);
274                                         }
275                                         pos = 0;
276                                 } else if (out & RETURN_DISCARD_FLAG) {
277                                         printf("Discard (search = %d, len = %d, buf = %d, x=%d, res=%d, oldones: %d, oldbits: %d)\n",
278                                                    c, pos, inbuf[0], x, res, oldones, oldbits);
279                                         dump_bitslong(olddata, oldbits);
280                                         printf("Discard                                                 oldones: %d, oldbits: %d)\n",
281                                                    oldones1, oldbits1);
282                                         dump_bitslong(olddata1, oldbits1);
283                                         if (x > 64) {
284                                                 dump_bits(outbuf + x - 64, 64);
285                                                 dump_bits(outbuf + x, 64);
286                                         }
287                                         pos = 0;
288                                 } else {
289                                         if ((out != c) && (pos < c) && !pos) {
290                                                 printf("Warning: Expecting %d at pos %d, got %d (x =%d)\n", c, pos, out, x);
291                                                 if (x > 64) {
292                                                         dump_bits(outbuf + x - 64, 64);
293                                                         dump_bits(outbuf + x, 64);
294                                                 }
295                                         }
296                                         inbuf[pos++] = out;
297                                 }
298                         }
299                 }
300         }
301
302 }