73 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_parse_header_match_tag()  argument
78 	if (cursor == NULL || cursor->buffer == NULL || cursor->length < 2) {  in efx_asn1_parse_header_match_tag()
83 	cursor->tag = cursor->buffer[0];  in efx_asn1_parse_header_match_tag()
84 	if (cursor->tag != tag) {  in efx_asn1_parse_header_match_tag()
90 	if ((cursor->tag & 0x1F) == 0x1F) {  in efx_asn1_parse_header_match_tag()
96 	if ((cursor->buffer[1] & 0x80) == 0) {  in efx_asn1_parse_header_match_tag()
98 		cursor->hdr_size = 2;  in efx_asn1_parse_header_match_tag()
99 		cursor->val_size = cursor->buffer[1];  in efx_asn1_parse_header_match_tag()
102 		uint32_t nbytes = cursor->buffer[1] & 0x7F;  in efx_asn1_parse_header_match_tag()
110 		if (2 + nbytes > cursor->length) {  in efx_asn1_parse_header_match_tag()
120 		cursor->hdr_size = 2 + nbytes;  in efx_asn1_parse_header_match_tag()
121 		cursor->val_size = 0;  in efx_asn1_parse_header_match_tag()
122 		for (offset = 2; offset < cursor->hdr_size; offset++) {  in efx_asn1_parse_header_match_tag()
123 			cursor->val_size =  in efx_asn1_parse_header_match_tag()
124 			    (cursor->val_size << 8) | cursor->buffer[offset];  in efx_asn1_parse_header_match_tag()
128 	if ((cursor->hdr_size + cursor->val_size) > cursor->length) {  in efx_asn1_parse_header_match_tag()
157 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_enter_tag()  argument
162 	if (cursor == NULL) {  in efx_asn1_enter_tag()
172 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_enter_tag()
179 	cursor->buffer += cursor->hdr_size;  in efx_asn1_enter_tag()
180 	cursor->length = cursor->val_size;  in efx_asn1_enter_tag()
200 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_match_tag_value()  argument
207 	if (cursor == NULL) {  in efx_asn1_match_tag_value()
211 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_match_tag_value()
216 	if (cursor->val_size != val_size) {  in efx_asn1_match_tag_value()
221 	if (memcmp(cursor->buffer + cursor->hdr_size, valp, val_size) != 0) {  in efx_asn1_match_tag_value()
226 	cursor->buffer += cursor->hdr_size + cursor->val_size;  in efx_asn1_match_tag_value()
227 	cursor->length -= cursor->hdr_size + cursor->val_size;  in efx_asn1_match_tag_value()
246 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_skip_tag()  argument
251 	if (cursor == NULL) {  in efx_asn1_skip_tag()
256 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_skip_tag()
261 	cursor->buffer += cursor->hdr_size + cursor->val_size;  in efx_asn1_skip_tag()
262 	cursor->length -= cursor->hdr_size + cursor->val_size;  in efx_asn1_skip_tag()
277 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_get_tag_value()  argument
284 	if (cursor == NULL || valp == NULL || val_sizep == NULL) {  in efx_asn1_get_tag_value()
289 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_get_tag_value()
294 	*valp = cursor->buffer + cursor->hdr_size;  in efx_asn1_get_tag_value()
295 	*val_sizep = cursor->val_size;  in efx_asn1_get_tag_value()
336 	efx_asn1_cursor_t cursor;  in efx_check_signed_image_header()  local
345 	cursor.buffer = (uint8_t *)bufferp;  in efx_check_signed_image_header()
346 	cursor.length = buffer_size;  in efx_check_signed_image_header()
349 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_SEQUENCE);  in efx_check_signed_image_header()
354 	rc = efx_asn1_match_tag_value(&cursor, ASN1_TAG_OBJ_ID,  in efx_check_signed_image_header()
360 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_CONS_CONTEXT(0));  in efx_check_signed_image_header()
365 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_SEQUENCE);  in efx_check_signed_image_header()
370 	rc = efx_asn1_match_tag_value(&cursor, ASN1_TAG_INTEGER,  in efx_check_signed_image_header()
376 	rc = efx_asn1_skip_tag(&cursor, ASN1_TAG_SET);  in efx_check_signed_image_header()
381 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_SEQUENCE);  in efx_check_signed_image_header()
386 	rc = efx_asn1_match_tag_value(&cursor, ASN1_TAG_OBJ_ID,  in efx_check_signed_image_header()
392 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_CONS_CONTEXT(0));  in efx_check_signed_image_header()
402 	rc = efx_asn1_get_tag_value(&cursor, ASN1_TAG_OCTET_STRING,  in efx_check_signed_image_header()