Commit | Line | Data |
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984263bc MD |
1 | /* |
2 | * Taken from the original FreeBSD user SCSI library. | |
3 | */ | |
4 | /* Copyright (c) 1994 HD Associates | |
5 | * (contact: dufault@hda.com) | |
6 | * All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. All advertising materials mentioning features or use of this software | |
17 | * must display the following acknowledgement: | |
18 | * This product includes software developed by HD Associates | |
19 | * 4. Neither the name of the HD Associaates nor the names of its contributors | |
20 | * may be used to endorse or promote products derived from this software | |
21 | * without specific prior written permission. | |
22 | * | |
23 | * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES``AS IS'' AND | |
24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
26 | * ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE | |
27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
33 | * SUCH DAMAGE. | |
34 | * From: scsi.c,v 1.8 1997/02/22 15:07:54 peter Exp $ | |
35 | * $FreeBSD: src/lib/libcam/scsi_cmdparse.c,v 1.3.2.1 2000/08/14 05:42:30 kbyanc Exp $ | |
36 | */ | |
37 | #include <stdlib.h> | |
38 | #include <stdio.h> | |
39 | #include <ctype.h> | |
40 | #include <string.h> | |
41 | #include <sys/errno.h> | |
42 | #include <stdarg.h> | |
43 | #include <fcntl.h> | |
44 | ||
4842621b | 45 | #include <bus/cam/cam.h> |
46 | #include <bus/cam/cam_ccb.h> | |
47 | #include <bus/cam/scsi/scsi_message.h> | |
984263bc MD |
48 | #include "camlib.h" |
49 | ||
50 | /* | |
51 | * Decode: Decode the data section of a scsireq. This decodes | |
52 | * trivial grammar: | |
53 | * | |
54 | * fields : field fields | |
55 | * ; | |
56 | * | |
57 | * field : field_specifier | |
58 | * | control | |
59 | * ; | |
60 | * | |
61 | * control : 's' seek_value | |
62 | * | 's' '+' seek_value | |
63 | * ; | |
64 | * | |
65 | * seek_value : DECIMAL_NUMBER | |
66 | * | 'v' // For indirect seek, i.e., value from the arg list | |
67 | * ; | |
68 | * | |
69 | * field_specifier : type_specifier field_width | |
70 | * | '{' NAME '}' type_specifier field_width | |
71 | * ; | |
72 | * | |
73 | * field_width : DECIMAL_NUMBER | |
74 | * ; | |
75 | * | |
76 | * type_specifier : 'i' // Integral types (i1, i2, i3, i4) | |
77 | * | 'b' // Bits | |
78 | * | 't' // Bits | |
79 | * | 'c' // Character arrays | |
80 | * | 'z' // Character arrays with zeroed trailing spaces | |
81 | * ; | |
82 | * | |
83 | * Notes: | |
84 | * 1. Integral types are swapped into host order. | |
85 | * 2. Bit fields are allocated MSB to LSB to match the SCSI spec documentation. | |
86 | * 3. 's' permits "seeking" in the string. "s+DECIMAL" seeks relative to | |
87 | * DECIMAL; "sDECIMAL" seeks absolute to decimal. | |
88 | * 4. 's' permits an indirect reference. "sv" or "s+v" will get the | |
89 | * next integer value from the arg array. | |
90 | * 5. Field names can be anything between the braces | |
91 | * | |
92 | * BUGS: | |
93 | * i and b types are promoted to ints. | |
94 | * | |
95 | */ | |
96 | ||
97 | static int | |
98 | do_buff_decode(u_int8_t *databuf, size_t len, | |
99 | void (*arg_put)(void *, int , void *, int, char *), | |
5adc1304 | 100 | void *puthook, const char *fmt, va_list ap) |
984263bc MD |
101 | { |
102 | int assigned = 0; | |
103 | int width; | |
104 | int suppress; | |
105 | int plus; | |
106 | int done = 0; | |
107 | static u_char mask[] = {0, 0x01, 0x03, 0x07, 0x0f, | |
108 | 0x1f, 0x3f, 0x7f, 0xff}; | |
109 | int value; | |
110 | u_char *base = databuf; | |
5adc1304 | 111 | char *intendp; |
984263bc MD |
112 | char letter; |
113 | char field_name[80]; | |
114 | ||
115 | # define ARG_PUT(ARG) \ | |
116 | do \ | |
117 | { \ | |
118 | if (!suppress) \ | |
119 | { \ | |
120 | if (arg_put) \ | |
121 | (*arg_put)(puthook, (letter == 't' ? \ | |
122 | 'b' : letter), \ | |
123 | (void *)((long)(ARG)), width, \ | |
124 | field_name); \ | |
125 | else \ | |
126 | *(va_arg(ap, int *)) = (ARG); \ | |
127 | assigned++; \ | |
128 | } \ | |
129 | field_name[0] = 0; \ | |
130 | suppress = 0; \ | |
131 | } while (0) | |
132 | ||
133 | u_char bits = 0; /* For bit fields */ | |
134 | int shift = 0; /* Bits already shifted out */ | |
135 | suppress = 0; | |
136 | field_name[0] = 0; | |
137 | ||
138 | while (!done) { | |
139 | switch(letter = *fmt) { | |
140 | case ' ': /* White space */ | |
141 | case '\t': | |
142 | case '\r': | |
143 | case '\n': | |
144 | case '\f': | |
145 | fmt++; | |
146 | break; | |
147 | ||
148 | case '#': /* Comment */ | |
149 | while (*fmt && (*fmt != '\n')) | |
150 | fmt++; | |
151 | if (fmt) | |
152 | fmt++; /* Skip '\n' */ | |
153 | break; | |
154 | ||
155 | case '*': /* Suppress assignment */ | |
156 | fmt++; | |
157 | suppress = 1; | |
158 | break; | |
159 | ||
160 | case '{': /* Field Name */ | |
161 | { | |
162 | int i = 0; | |
163 | fmt++; /* Skip '{' */ | |
164 | while (*fmt && (*fmt != '}')) { | |
165 | if (i < sizeof(field_name)) | |
166 | field_name[i++] = *fmt; | |
167 | ||
168 | fmt++; | |
169 | } | |
170 | if (fmt) | |
171 | fmt++; /* Skip '}' */ | |
172 | field_name[i] = 0; | |
173 | break; | |
174 | } | |
175 | ||
176 | case 't': /* Bit (field) */ | |
177 | case 'b': /* Bits */ | |
178 | fmt++; | |
5adc1304 PA |
179 | width = strtol(fmt, &intendp, 10); |
180 | fmt = intendp; | |
984263bc MD |
181 | if (width > 8) |
182 | done = 1; | |
183 | else { | |
184 | if (shift <= 0) { | |
185 | bits = *databuf++; | |
186 | shift = 8; | |
187 | } | |
188 | value = (bits >> (shift - width)) & | |
189 | mask[width]; | |
190 | ||
191 | #if 0 | |
192 | printf("shift %2d bits %02x value %02x width %2d mask %02x\n", | |
193 | shift, bits, value, width, mask[width]); | |
194 | #endif | |
195 | ||
196 | ARG_PUT(value); | |
197 | ||
198 | shift -= width; | |
199 | } | |
200 | break; | |
201 | ||
202 | case 'i': /* Integral values */ | |
203 | shift = 0; | |
204 | fmt++; | |
5adc1304 PA |
205 | width = strtol(fmt, &intendp, 10); |
206 | fmt = intendp; | |
984263bc MD |
207 | switch(width) { |
208 | case 1: | |
209 | ARG_PUT(*databuf); | |
210 | databuf++; | |
211 | break; | |
212 | ||
213 | case 2: | |
214 | ARG_PUT((*databuf) << 8 | *(databuf + 1)); | |
215 | databuf += 2; | |
216 | break; | |
217 | ||
218 | case 3: | |
219 | ARG_PUT((*databuf) << 16 | | |
220 | (*(databuf + 1)) << 8 | *(databuf + 2)); | |
221 | databuf += 3; | |
222 | break; | |
223 | ||
224 | case 4: | |
225 | ARG_PUT((*databuf) << 24 | | |
226 | (*(databuf + 1)) << 16 | | |
227 | (*(databuf + 2)) << 8 | | |
228 | *(databuf + 3)); | |
229 | databuf += 4; | |
230 | break; | |
231 | ||
232 | default: | |
233 | done = 1; | |
234 | break; | |
235 | } | |
236 | ||
237 | break; | |
238 | ||
239 | case 'c': /* Characters (i.e., not swapped) */ | |
240 | case 'z': /* Characters with zeroed trailing | |
241 | spaces */ | |
242 | shift = 0; | |
243 | fmt++; | |
5adc1304 PA |
244 | width = strtol(fmt, &intendp, 10); |
245 | fmt = intendp; | |
984263bc MD |
246 | if (!suppress) { |
247 | if (arg_put) | |
248 | (*arg_put)(puthook, | |
249 | (letter == 't' ? 'b' : letter), | |
250 | databuf, width, field_name); | |
251 | else { | |
252 | char *dest; | |
253 | dest = va_arg(ap, char *); | |
254 | bcopy(databuf, dest, width); | |
255 | if (letter == 'z') { | |
256 | char *p; | |
257 | for (p = dest + width - 1; | |
258 | (p >= (char *)dest) | |
259 | && (*p == ' '); p--) | |
260 | *p = 0; | |
261 | } | |
262 | } | |
263 | assigned++; | |
264 | } | |
265 | databuf += width; | |
266 | field_name[0] = 0; | |
267 | suppress = 0; | |
268 | break; | |
269 | ||
270 | case 's': /* Seek */ | |
271 | shift = 0; | |
272 | fmt++; | |
273 | if (*fmt == '+') { | |
274 | plus = 1; | |
275 | fmt++; | |
276 | } else | |
277 | plus = 0; | |
278 | ||
279 | if (tolower(*fmt) == 'v') { | |
280 | /* | |
281 | * You can't suppress a seek value. You also | |
282 | * can't have a variable seek when you are using | |
283 | * "arg_put". | |
284 | */ | |
285 | width = (arg_put) ? 0 : va_arg(ap, int); | |
286 | fmt++; | |
5adc1304 PA |
287 | } else { |
288 | width = strtol(fmt, &intendp, 10); | |
289 | fmt = intendp; | |
290 | } | |
984263bc MD |
291 | |
292 | if (plus) | |
293 | databuf += width; /* Relative seek */ | |
294 | else | |
295 | databuf = base + width; /* Absolute seek */ | |
296 | ||
297 | break; | |
298 | ||
299 | case 0: | |
300 | done = 1; | |
301 | break; | |
302 | ||
303 | default: | |
304 | fprintf(stderr, "Unknown letter in format: %c\n", | |
305 | letter); | |
306 | fmt++; | |
307 | break; | |
308 | } | |
309 | } | |
310 | ||
311 | return (assigned); | |
312 | } | |
313 | ||
314 | /* next_field: Return the next field in a command specifier. This | |
315 | * builds up a SCSI command using this trivial grammar: | |
316 | * | |
317 | * fields : field fields | |
318 | * ; | |
319 | * | |
320 | * field : value | |
321 | * | value ':' field_width | |
322 | * ; | |
323 | * | |
324 | * field_width : digit | |
325 | * | 'i' digit // i2 = 2 byte integer, i3 = 3 byte integer etc. | |
326 | * ; | |
327 | * | |
328 | * value : HEX_NUMBER | |
329 | * | 'v' // For indirection. | |
330 | * ; | |
331 | * | |
332 | * Notes: | |
333 | * Bit fields are specified MSB first to match the SCSI spec. | |
334 | * | |
335 | * Examples: | |
336 | * TUR: "0 0 0 0 0 0" | |
337 | * WRITE BUFFER: "38 v:3 0:2 0:3 v v:i3 v:i3 0", mode, buffer_id, list_length | |
338 | * | |
339 | * The function returns the value: | |
340 | * 0: For reached end, with error_p set if an error was found | |
341 | * 1: For valid stuff setup | |
342 | * 2: For "v" was entered as the value (implies use varargs) | |
343 | * | |
344 | */ | |
345 | ||
346 | static int | |
5adc1304 | 347 | next_field(const char **pp, char *fmt, int *width_p, int *value_p, char *name, |
984263bc MD |
348 | int n_name, int *error_p, int *suppress_p) |
349 | { | |
5adc1304 PA |
350 | const char *p = *pp; |
351 | char *intendp; | |
984263bc MD |
352 | |
353 | int something = 0; | |
354 | ||
355 | enum { | |
356 | BETWEEN_FIELDS, | |
357 | START_FIELD, | |
358 | GET_FIELD, | |
359 | DONE, | |
360 | } state; | |
361 | ||
362 | int value = 0; | |
363 | int field_size; /* Default to byte field type... */ | |
364 | int field_width; /* 1 byte wide */ | |
365 | int is_error = 0; | |
366 | int suppress = 0; | |
367 | ||
368 | field_size = 8; /* Default to byte field type... */ | |
369 | *fmt = 'i'; | |
370 | field_width = 1; /* 1 byte wide */ | |
371 | if (name) | |
372 | *name = 0; | |
373 | ||
374 | state = BETWEEN_FIELDS; | |
375 | ||
376 | while (state != DONE) { | |
377 | switch(state) { | |
378 | case BETWEEN_FIELDS: | |
379 | if (*p == 0) | |
380 | state = DONE; | |
381 | else if (isspace(*p)) | |
382 | p++; | |
383 | else if (*p == '#') { | |
384 | while (*p && *p != '\n') | |
385 | p++; | |
386 | if (p) | |
387 | p++; | |
388 | } else if (*p == '{') { | |
389 | int i = 0; | |
390 | ||
391 | p++; | |
392 | ||
393 | while (*p && *p != '}') { | |
394 | if(name && i < n_name) { | |
395 | name[i] = *p; | |
396 | i++; | |
397 | } | |
398 | p++; | |
399 | } | |
400 | ||
401 | if(name && i < n_name) | |
402 | name[i] = 0; | |
403 | ||
404 | if (*p == '}') | |
405 | p++; | |
406 | } else if (*p == '*') { | |
407 | p++; | |
408 | suppress = 1; | |
409 | } else if (isxdigit(*p)) { | |
410 | something = 1; | |
5adc1304 PA |
411 | value = strtol(p, &intendp, 16); |
412 | p = intendp; | |
984263bc MD |
413 | state = START_FIELD; |
414 | } else if (tolower(*p) == 'v') { | |
415 | p++; | |
416 | something = 2; | |
417 | value = *value_p; | |
418 | state = START_FIELD; | |
419 | } else if (tolower(*p) == 'i') { | |
420 | /* | |
421 | * Try to work without the "v". | |
422 | */ | |
423 | something = 2; | |
424 | value = *value_p; | |
425 | p++; | |
426 | ||
427 | *fmt = 'i'; | |
428 | field_size = 8; | |
5adc1304 PA |
429 | field_width = strtol(p, &intendp, 10); |
430 | p = intendp; | |
984263bc MD |
431 | state = DONE; |
432 | ||
433 | } else if (tolower(*p) == 't') { | |
434 | /* | |
435 | * XXX: B can't work: Sees the 'b' as a | |
436 | * hex digit in "isxdigit". try "t" for | |
437 | * bit field. | |
438 | */ | |
439 | something = 2; | |
440 | value = *value_p; | |
441 | p++; | |
442 | ||
443 | *fmt = 'b'; | |
444 | field_size = 1; | |
5adc1304 PA |
445 | field_width = strtol(p, &intendp, 10); |
446 | p = intendp; | |
984263bc MD |
447 | state = DONE; |
448 | } else if (tolower(*p) == 's') { | |
449 | /* Seek */ | |
450 | *fmt = 's'; | |
451 | p++; | |
452 | if (tolower(*p) == 'v') { | |
453 | p++; | |
454 | something = 2; | |
455 | value = *value_p; | |
456 | } else { | |
457 | something = 1; | |
5adc1304 PA |
458 | value = strtol(p, &intendp, 0); |
459 | p = intendp; | |
984263bc MD |
460 | } |
461 | state = DONE; | |
462 | } else { | |
463 | fprintf(stderr, "Invalid starting " | |
464 | "character: %c\n", *p); | |
465 | is_error = 1; | |
466 | state = DONE; | |
467 | } | |
468 | break; | |
469 | ||
470 | case START_FIELD: | |
471 | if (*p == ':') { | |
472 | p++; | |
473 | field_size = 1; /* Default to bits | |
474 | when specified */ | |
475 | state = GET_FIELD; | |
476 | } else | |
477 | state = DONE; | |
478 | break; | |
479 | ||
480 | case GET_FIELD: | |
481 | if (isdigit(*p)) { | |
482 | *fmt = 'b'; | |
483 | field_size = 1; | |
5adc1304 PA |
484 | field_width = strtol(p, &intendp, 10); |
485 | p = intendp; | |
984263bc MD |
486 | state = DONE; |
487 | } else if (*p == 'i') { | |
488 | ||
489 | /* Integral (bytes) */ | |
490 | p++; | |
491 | ||
492 | *fmt = 'i'; | |
493 | field_size = 8; | |
5adc1304 PA |
494 | field_width = strtol(p, &intendp, 10); |
495 | p = intendp; | |
984263bc MD |
496 | state = DONE; |
497 | } else if (*p == 'b') { | |
498 | ||
499 | /* Bits */ | |
500 | p++; | |
501 | ||
502 | *fmt = 'b'; | |
503 | field_size = 1; | |
5adc1304 PA |
504 | field_width = strtol(p, &intendp, 10); |
505 | p = intendp; | |
984263bc MD |
506 | state = DONE; |
507 | } else { | |
508 | fprintf(stderr, "Invalid startfield %c " | |
509 | "(%02x)\n", *p, *p); | |
510 | is_error = 1; | |
511 | state = DONE; | |
512 | } | |
513 | break; | |
514 | ||
515 | case DONE: | |
516 | break; | |
517 | } | |
518 | } | |
519 | ||
520 | if (is_error) { | |
521 | *error_p = 1; | |
522 | return 0; | |
523 | } | |
524 | ||
525 | *error_p = 0; | |
526 | *pp = p; | |
527 | *width_p = field_width * field_size; | |
528 | *value_p = value; | |
529 | *suppress_p = suppress; | |
530 | ||
531 | return (something); | |
532 | } | |
533 | ||
534 | static int | |
535 | do_encode(u_char *buff, size_t vec_max, size_t *used, | |
5adc1304 PA |
536 | int (*arg_get)(void *, char *), void *gethook, const char *fmt, |
537 | va_list ap) | |
984263bc MD |
538 | { |
539 | int ind; | |
540 | int shift; | |
541 | u_char val; | |
542 | int ret; | |
543 | int width, value, error, suppress; | |
544 | char c; | |
545 | int encoded = 0; | |
546 | char field_name[80]; | |
547 | ||
548 | ind = 0; | |
549 | shift = 0; | |
550 | val = 0; | |
551 | ||
552 | while ((ret = next_field(&fmt, &c, &width, &value, field_name, | |
553 | sizeof(field_name), &error, &suppress))) { | |
554 | encoded++; | |
555 | ||
556 | if (ret == 2) { | |
557 | if (suppress) | |
558 | value = 0; | |
559 | else | |
560 | value = arg_get ? | |
561 | (*arg_get)(gethook, field_name) : | |
562 | va_arg(ap, int); | |
563 | } | |
564 | ||
565 | #if 0 | |
566 | printf( | |
567 | "do_encode: ret %d fmt %c width %d value %d name \"%s\" error %d suppress %d\n", | |
568 | ret, c, width, value, field_name, error, suppress); | |
569 | #endif | |
570 | /* Absolute seek */ | |
571 | if (c == 's') { | |
572 | ind = value; | |
573 | continue; | |
574 | } | |
575 | ||
576 | /* A width of < 8 is a bit field. */ | |
577 | if (width < 8) { | |
578 | ||
579 | /* This is a bit field. We start with the high bits | |
580 | * so it reads the same as the SCSI spec. | |
581 | */ | |
582 | ||
583 | shift += width; | |
584 | ||
585 | val |= (value << (8 - shift)); | |
586 | ||
587 | if (shift == 8) { | |
588 | if (ind < vec_max) { | |
589 | buff[ind++] = val; | |
590 | val = 0; | |
591 | } | |
592 | shift = 0; | |
593 | } | |
594 | } else { | |
595 | if (shift) { | |
596 | if (ind < vec_max) { | |
597 | buff[ind++] = val; | |
598 | val = 0; | |
599 | } | |
600 | shift = 0; | |
601 | } | |
602 | switch(width) { | |
603 | case 8: /* 1 byte integer */ | |
604 | if (ind < vec_max) | |
605 | buff[ind++] = value; | |
606 | break; | |
607 | ||
608 | case 16: /* 2 byte integer */ | |
609 | if (ind < vec_max - 2 + 1) { | |
610 | buff[ind++] = value >> 8; | |
611 | buff[ind++] = value; | |
612 | } | |
613 | break; | |
614 | ||
615 | case 24: /* 3 byte integer */ | |
616 | if (ind < vec_max - 3 + 1) { | |
617 | buff[ind++] = value >> 16; | |
618 | buff[ind++] = value >> 8; | |
619 | buff[ind++] = value; | |
620 | } | |
621 | break; | |
622 | ||
623 | case 32: /* 4 byte integer */ | |
624 | if (ind < vec_max - 4 + 1) { | |
625 | buff[ind++] = value >> 24; | |
626 | buff[ind++] = value >> 16; | |
627 | buff[ind++] = value >> 8; | |
628 | buff[ind++] = value; | |
629 | } | |
630 | break; | |
631 | ||
632 | default: | |
633 | fprintf(stderr, "do_encode: Illegal width\n"); | |
634 | break; | |
635 | } | |
636 | } | |
637 | } | |
638 | ||
639 | /* Flush out any remaining bits | |
640 | */ | |
b36bf52b | 641 | if (shift && ind < vec_max) |
984263bc | 642 | buff[ind++] = val; |
984263bc MD |
643 | |
644 | if (used) | |
645 | *used = ind; | |
646 | ||
647 | if (error) | |
648 | return -1; | |
649 | ||
650 | return encoded; | |
651 | } | |
652 | ||
653 | int | |
5adc1304 | 654 | csio_decode(struct ccb_scsiio *csio, const char *fmt, ...) |
984263bc MD |
655 | { |
656 | va_list ap; | |
657 | ||
658 | va_start(ap, fmt); | |
659 | ||
660 | return(do_buff_decode(csio->data_ptr, (size_t)csio->dxfer_len, | |
661 | 0, 0, fmt, ap)); | |
662 | } | |
663 | ||
664 | int | |
5adc1304 | 665 | csio_decode_visit(struct ccb_scsiio *csio, const char *fmt, |
984263bc MD |
666 | void (*arg_put)(void *, int, void *, int, char *), |
667 | void *puthook) | |
668 | { | |
669 | va_list ap; | |
670 | ||
671 | /* | |
672 | * We need some way to output things; we can't do it without | |
673 | * the arg_put function. | |
674 | */ | |
675 | if (arg_put == NULL) | |
676 | return(-1); | |
677 | ||
678 | bzero(&ap, sizeof(ap)); | |
679 | ||
680 | return(do_buff_decode(csio->data_ptr, (size_t)csio->dxfer_len, | |
681 | arg_put, puthook, fmt, ap)); | |
682 | } | |
683 | ||
684 | int | |
5adc1304 | 685 | buff_decode(u_int8_t *buff, size_t len, const char *fmt, ...) |
984263bc MD |
686 | { |
687 | va_list ap; | |
688 | ||
689 | va_start(ap, fmt); | |
690 | ||
691 | return(do_buff_decode(buff, len, 0, 0, fmt, ap)); | |
692 | } | |
693 | ||
694 | int | |
5adc1304 | 695 | buff_decode_visit(u_int8_t *buff, size_t len, const char *fmt, |
984263bc MD |
696 | void (*arg_put)(void *, int, void *, int, char *), |
697 | void *puthook) | |
698 | { | |
699 | va_list ap; | |
700 | ||
701 | /* | |
702 | * We need some way to output things; we can't do it without | |
703 | * the arg_put function. | |
704 | */ | |
705 | if (arg_put == NULL) | |
706 | return(-1); | |
707 | ||
708 | bzero(&ap, sizeof(ap)); | |
709 | ||
710 | return(do_buff_decode(buff, len, arg_put, puthook, fmt, ap)); | |
711 | } | |
712 | ||
713 | /* | |
714 | * Build a SCSI CCB, given the command and data pointers and a format | |
715 | * string describing the | |
716 | */ | |
717 | int | |
718 | csio_build(struct ccb_scsiio *csio, u_int8_t *data_ptr, u_int32_t dxfer_len, | |
5adc1304 PA |
719 | u_int32_t flags, int retry_count, int timeout, const char *cmd_spec, |
720 | ...) | |
984263bc MD |
721 | { |
722 | size_t cmdlen; | |
723 | int retval; | |
724 | va_list ap; | |
725 | ||
726 | if (csio == NULL) | |
727 | return(0); | |
728 | ||
729 | bzero(csio, sizeof(struct ccb_scsiio)); | |
730 | ||
731 | va_start(ap, cmd_spec); | |
732 | ||
733 | if ((retval = do_encode(csio->cdb_io.cdb_bytes, SCSI_MAX_CDBLEN, | |
734 | &cmdlen, NULL, NULL, cmd_spec, ap)) == -1) | |
735 | return(retval); | |
736 | ||
737 | cam_fill_csio(csio, | |
738 | /* retries */ retry_count, | |
739 | /* cbfcnp */ NULL, | |
740 | /* flags */ flags, | |
741 | /* tag_action */ MSG_SIMPLE_Q_TAG, | |
742 | /* data_ptr */ data_ptr, | |
743 | /* dxfer_len */ dxfer_len, | |
744 | /* sense_len */ SSD_FULL_SIZE, | |
745 | /* cdb_len */ cmdlen, | |
746 | /* timeout */ timeout ? timeout : 5000); | |
747 | ||
748 | return(retval); | |
749 | } | |
750 | ||
751 | int | |
752 | csio_build_visit(struct ccb_scsiio *csio, u_int8_t *data_ptr, | |
753 | u_int32_t dxfer_len, u_int32_t flags, int retry_count, | |
5adc1304 | 754 | int timeout, const char *cmd_spec, |
984263bc MD |
755 | int (*arg_get)(void *hook, char *field_name), void *gethook) |
756 | { | |
757 | va_list ap; | |
758 | size_t cmdlen; | |
759 | int retval; | |
760 | ||
761 | if (csio == NULL) | |
762 | return(0); | |
763 | ||
764 | /* | |
765 | * We need something to encode, but we can't get it without the | |
766 | * arg_get function. | |
767 | */ | |
768 | if (arg_get == NULL) | |
769 | return(-1); | |
770 | ||
771 | bzero(&ap, sizeof(ap)); | |
772 | ||
773 | bzero(csio, sizeof(struct ccb_scsiio)); | |
774 | ||
775 | if ((retval = do_encode(csio->cdb_io.cdb_bytes, SCSI_MAX_CDBLEN, | |
776 | &cmdlen, arg_get, gethook, cmd_spec, ap)) == -1) | |
777 | return(retval); | |
778 | ||
779 | cam_fill_csio(csio, | |
780 | /* retries */ retry_count, | |
781 | /* cbfcnp */ NULL, | |
782 | /* flags */ flags, | |
783 | /* tag_action */ MSG_SIMPLE_Q_TAG, | |
784 | /* data_ptr */ data_ptr, | |
785 | /* dxfer_len */ dxfer_len, | |
786 | /* sense_len */ SSD_FULL_SIZE, | |
787 | /* cdb_len */ cmdlen, | |
788 | /* timeout */ timeout ? timeout : 5000); | |
789 | ||
790 | return(retval); | |
791 | } | |
792 | ||
793 | int | |
5adc1304 | 794 | csio_encode(struct ccb_scsiio *csio, const char *fmt, ...) |
984263bc MD |
795 | { |
796 | va_list ap; | |
797 | ||
798 | if (csio == NULL) | |
799 | return(0); | |
800 | ||
801 | va_start(ap, fmt); | |
802 | ||
803 | return(do_encode(csio->data_ptr, csio->dxfer_len, 0, 0, 0, fmt, ap)); | |
804 | } | |
805 | ||
806 | int | |
5adc1304 | 807 | buff_encode_visit(u_int8_t *buff, size_t len, const char *fmt, |
984263bc MD |
808 | int (*arg_get)(void *hook, char *field_name), void *gethook) |
809 | { | |
810 | va_list ap; | |
811 | ||
812 | /* | |
813 | * We need something to encode, but we can't get it without the | |
814 | * arg_get function. | |
815 | */ | |
816 | if (arg_get == NULL) | |
817 | return(-1); | |
818 | ||
819 | bzero(&ap, sizeof(ap)); | |
820 | ||
821 | return(do_encode(buff, len, 0, arg_get, gethook, fmt, ap)); | |
822 | } | |
823 | ||
824 | int | |
5adc1304 | 825 | csio_encode_visit(struct ccb_scsiio *csio, const char *fmt, |
984263bc MD |
826 | int (*arg_get)(void *hook, char *field_name), void *gethook) |
827 | { | |
828 | va_list ap; | |
829 | ||
830 | /* | |
831 | * We need something to encode, but we can't get it without the | |
832 | * arg_get function. | |
833 | */ | |
834 | if (arg_get == NULL) | |
835 | return(-1); | |
836 | ||
837 | bzero(&ap, sizeof(ap)); | |
838 | ||
839 | return(do_encode(csio->data_ptr, csio->dxfer_len, 0, arg_get, | |
840 | gethook, fmt, ap)); | |
841 | } |