1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
4  * Copyright (c) 2002-2003
66 #define MAX_ROM (1024 - sizeof(uint32_t) * 5)
67 #define CROM_END(cc) ((vm_offset_t)(cc)->stack[0].dir + MAX_ROM - 1)
75 	if (hdr->info_len <= 1) {  in crom_init_context()
76 		/* minimum or invalid ROM */  in crom_init_context()
77 		cc->depth = -1;  in crom_init_context()
80 	p += 1 + hdr->info_len;  in crom_init_context()
83 	if (((struct csrdirectory *)p)->crc_len == 0) {  in crom_init_context()
84 		cc->depth = -1;  in crom_init_context()
87 	cc->depth = 0;  in crom_init_context()
88 	cc->stack[0].dir = (struct csrdirectory *)p;  in crom_init_context()
89 	cc->stack[0].index = 0;  in crom_init_context()
97 	ptr = &cc->stack[cc->depth];  in crom_get()
98 	return (&ptr->dir->entry[ptr->index]);  in crom_get()
107 	if (cc->depth < 0)  in crom_next()
110 	if ((reg->key & CSRTYPE_MASK) == CSRTYPE_D) {  in crom_next()
111 		if (cc->depth >= CROM_MAX_DEPTH) {  in crom_next()
115 		cc->depth++;  in crom_next()
117 		ptr = &cc->stack[cc->depth];  in crom_next()
118 		ptr->dir = (struct csrdirectory *) (reg + reg->val);  in crom_next()
119 		ptr->index = 0;  in crom_next()
123 	ptr = &cc->stack[cc->depth];  in crom_next()
124 	ptr->index++;  in crom_next()
126 	if (ptr->index < ptr->dir->crc_len &&  in crom_next()
130 	if (ptr->index < ptr->dir->crc_len)  in crom_next()
133 	if (cc->depth > 0) {  in crom_next()
134 		cc->depth--;  in crom_next()
138 	cc->depth = -1;  in crom_next()
147 	while (cc->depth >= 0) {  in crom_search_key()
149 		if (reg->key == key)  in crom_search_key()
165 	while (cc->depth >= 0) {  in crom_has_specver()
168 			if (reg->key == CSRKEY_SPEC && reg->val == spec)  in crom_has_specver()
173 			if (reg->key == CSRKEY_VER && reg->val == ver)  in crom_has_specver()
192 	if (cc->depth < 0)  in crom_parse_text()
196 	if (reg->key != CROM_TEXTLEAF ||  in crom_parse_text()
197 	    (vm_offset_t)(reg + reg->val) > CROM_END(cc)) {  in crom_parse_text()
201 	textleaf = (struct csrtext *)(reg + reg->val);  in crom_parse_text()
203 	if ((vm_offset_t)textleaf + textleaf->crc_len > CROM_END(cc)) {  in crom_parse_text()
211 	qlen = textleaf->crc_len - 2;  in crom_parse_text()
215 		*bp++ = ntohl(textleaf->text[i]);  in crom_parse_text()
218 		buf[len - 1] = 0;  in crom_parse_text()
231 		for (shift = 28; shift >= 0; shift -= 4) {  in crom_crc()
249 			s = "SBP-2";  in crom_desc_specver()
303 	switch (reg->key & CSRTYPE_MASK) {  in crom_desc()
306 		len -= snprintf(buf, len, "%d", reg->val);  in crom_desc()
313 		len -= snprintf(buf, len, "offset=0x%04x(%d)",  in crom_desc()
314 		    reg->val, reg->val);  in crom_desc()
320 		dir = (struct csrdirectory *)(reg + reg->val);  in crom_desc()
321 		crc = crom_crc((uint32_t *)&dir->entry[0], dir->crc_len);  in crom_desc()
322 		len -= snprintf(buf, len, "len=%d crc=0x%04x(%s) ",  in crom_desc()
323 		    dir->crc_len, dir->crc,  in crom_desc()
324 		    (crc == dir->crc) ? "OK" : "NG");  in crom_desc()
327 	switch (reg->key) {  in crom_desc()
342 		crom_desc_specver(0, reg->val, buf, len);  in crom_desc()
395 	index = chunk->data.crc_len;  in crom_add_quad()
396 	if (index >= CROM_MAX_CHUNK_LEN - 1) {  in crom_add_quad()
398 		return (-1);  in crom_add_quad()
400 	chunk->data.buf[index] = entry;  in crom_add_quad()
401 	chunk->data.crc_len++;  in crom_add_quad()
406 crom_add_entry(struct crom_chunk *chunk, int key, int val)  in crom_add_entry()  argument
415 	foo.reg.val = val;  in crom_add_entry()
426 		STAILQ_INSERT_TAIL(&src->chunk_list, child, link);  in crom_add_chunk()
432 		return (-1);  in crom_add_chunk()
434 	child->ref_chunk = parent;  in crom_add_chunk()
435 	child->ref_index = index;  in crom_add_chunk()
436 	STAILQ_INSERT_TAIL(&src->chunk_list, child, link);  in crom_add_chunk()
440 #define MAX_TEXT ((CROM_MAX_CHUNK_LEN + 1) * 4 - sizeof(struct csrtext))
456 	tl = (struct csrtext *) &chunk->data;  in crom_add_simple_text()
457 	tl->crc_len = howmany(sizeof(struct csrtext) + len, sizeof(uint32_t));  in crom_add_simple_text()
458 	tl->spec_id = 0;  in crom_add_simple_text()
459 	tl->spec_type = 0;  in crom_add_simple_text()
460 	tl->lang_id = 0;  in crom_add_simple_text()
465 		tl->text[i] = ntohl(*p++);  in crom_add_simple_text()
473 		printf("Config. ROM is too large for the buffer\n");  in crom_copy()
474 		return (-1);  in crom_copy()
495 	STAILQ_FOREACH(chunk, &src->chunk_list, link) {  in crom_load()
496 		chunk->offset = offset;  in crom_load()
498 		parent = chunk->ref_chunk;  in crom_load()
502 			    &parent->data.buf[chunk->ref_index];  in crom_load()
503 			reg->val = offset -  in crom_load()
504 			    (parent->offset + 1 + chunk->ref_index);  in crom_load()
506 		offset += 1 + chunk->data.crc_len;  in crom_load()
510 	len = 1 + src->hdr.info_len;  in crom_load()
512 	if (crom_copy((uint32_t *)&src->hdr, buf, &count, len, maxlen) < 0)  in crom_load()
513 		return (-1);  in crom_load()
514 	STAILQ_FOREACH(chunk, &src->chunk_list, link) {  in crom_load()
515 		chunk->data.crc =  in crom_load()
516 		    crom_crc(&chunk->data.buf[0], chunk->data.crc_len);  in crom_load()
518 		len = 1 + chunk->data.crc_len;  in crom_load()
519 		if (crom_copy((uint32_t *)&chunk->data, buf,  in crom_load()
521 			return (-1);  in crom_load()
524 	hdr->crc_len = count - 1;  in crom_load()
525 	hdr->crc = crom_crc(&buf[1], hdr->crc_len);  in crom_load()
589 	crom_add_simple_text(&src, &root, &text2, "FreeBSD-5");  in main()