71 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_parse_header_match_tag()  argument
76 	if (cursor == NULL || cursor->buffer == NULL || cursor->length < 2) {  in efx_asn1_parse_header_match_tag()
81 	cursor->tag = cursor->buffer[0];  in efx_asn1_parse_header_match_tag()
82 	if (cursor->tag != tag) {  in efx_asn1_parse_header_match_tag()
88 	if ((cursor->tag & 0x1F) == 0x1F) {  in efx_asn1_parse_header_match_tag()
94 	if ((cursor->buffer[1] & 0x80) == 0) {  in efx_asn1_parse_header_match_tag()
96 		cursor->hdr_size = 2;  in efx_asn1_parse_header_match_tag()
97 		cursor->val_size = cursor->buffer[1];  in efx_asn1_parse_header_match_tag()
100 		uint32_t nbytes = cursor->buffer[1] & 0x7F;  in efx_asn1_parse_header_match_tag()
108 		if (2 + nbytes > cursor->length) {  in efx_asn1_parse_header_match_tag()
118 		cursor->hdr_size = 2 + nbytes;  in efx_asn1_parse_header_match_tag()
119 		cursor->val_size = 0;  in efx_asn1_parse_header_match_tag()
120 		for (offset = 2; offset < cursor->hdr_size; offset++) {  in efx_asn1_parse_header_match_tag()
121 			cursor->val_size =  in efx_asn1_parse_header_match_tag()
122 			    (cursor->val_size << 8) | cursor->buffer[offset];  in efx_asn1_parse_header_match_tag()
126 	if ((cursor->hdr_size + cursor->val_size) > cursor->length) {  in efx_asn1_parse_header_match_tag()
155 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_enter_tag()  argument
160 	if (cursor == NULL) {  in efx_asn1_enter_tag()
170 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_enter_tag()
176 	/* Limit cursor range to nested TLV */  in efx_asn1_enter_tag()
177 	cursor->buffer += cursor->hdr_size;  in efx_asn1_enter_tag()
178 	cursor->length = cursor->val_size;  in efx_asn1_enter_tag()
194  * Advance cursor to next TLV on a successful match.
198 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_match_tag_value()  argument
205 	if (cursor == NULL) {  in efx_asn1_match_tag_value()
209 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_match_tag_value()
214 	if (cursor->val_size != val_size) {  in efx_asn1_match_tag_value()
219 	if (memcmp(cursor->buffer + cursor->hdr_size, valp, val_size) != 0) {  in efx_asn1_match_tag_value()
224 	cursor->buffer += cursor->hdr_size + cursor->val_size;  in efx_asn1_match_tag_value()
225 	cursor->length -= cursor->hdr_size + cursor->val_size;  in efx_asn1_match_tag_value()
241 /* Advance cursor to next TLV */
244 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_skip_tag()  argument
249 	if (cursor == NULL) {  in efx_asn1_skip_tag()
254 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_skip_tag()
259 	cursor->buffer += cursor->hdr_size + cursor->val_size;  in efx_asn1_skip_tag()
260 	cursor->length -= cursor->hdr_size + cursor->val_size;  in efx_asn1_skip_tag()
275 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_get_tag_value()  argument
282 	if (cursor == NULL || valp == NULL || val_sizep == NULL) {  in efx_asn1_get_tag_value()
287 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_get_tag_value()
292 	*valp = cursor->buffer + cursor->hdr_size;  in efx_asn1_get_tag_value()
293 	*val_sizep = cursor->val_size;  in efx_asn1_get_tag_value()
334 	efx_asn1_cursor_t cursor;  in efx_check_signed_image_header()  local
343 	cursor.buffer = (uint8_t *)bufferp;  in efx_check_signed_image_header()
344 	cursor.length = buffer_size;  in efx_check_signed_image_header()
347 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_SEQUENCE);  in efx_check_signed_image_header()
352 	rc = efx_asn1_match_tag_value(&cursor, ASN1_TAG_OBJ_ID,  in efx_check_signed_image_header()
358 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_CONS_CONTEXT(0));  in efx_check_signed_image_header()
363 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_SEQUENCE);  in efx_check_signed_image_header()
368 	rc = efx_asn1_match_tag_value(&cursor, ASN1_TAG_INTEGER,  in efx_check_signed_image_header()
374 	rc = efx_asn1_skip_tag(&cursor, ASN1_TAG_SET);  in efx_check_signed_image_header()
379 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_SEQUENCE);  in efx_check_signed_image_header()
384 	rc = efx_asn1_match_tag_value(&cursor, ASN1_TAG_OBJ_ID,  in efx_check_signed_image_header()
390 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_CONS_CONTEXT(0));  in efx_check_signed_image_header()
400 	rc = efx_asn1_get_tag_value(&cursor, ASN1_TAG_OCTET_STRING,  in efx_check_signed_image_header()