47 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_parse_header_match_tag()  argument
52 	if (cursor == NULL || cursor->buffer == NULL || cursor->length < 2) {  in efx_asn1_parse_header_match_tag()
57 	cursor->tag = cursor->buffer[0];  in efx_asn1_parse_header_match_tag()
58 	if (cursor->tag != tag) {  in efx_asn1_parse_header_match_tag()
64 	if ((cursor->tag & 0x1F) == 0x1F) {  in efx_asn1_parse_header_match_tag()
70 	if ((cursor->buffer[1] & 0x80) == 0) {  in efx_asn1_parse_header_match_tag()
72 		cursor->hdr_size = 2;  in efx_asn1_parse_header_match_tag()
73 		cursor->val_size = cursor->buffer[1];  in efx_asn1_parse_header_match_tag()
76 		uint32_t nbytes = cursor->buffer[1] & 0x7F;  in efx_asn1_parse_header_match_tag()
84 		if (2 + nbytes > cursor->length) {  in efx_asn1_parse_header_match_tag()
94 		cursor->hdr_size = 2 + nbytes;  in efx_asn1_parse_header_match_tag()
95 		cursor->val_size = 0;  in efx_asn1_parse_header_match_tag()
96 		for (offset = 2; offset < cursor->hdr_size; offset++) {  in efx_asn1_parse_header_match_tag()
97 			cursor->val_size =  in efx_asn1_parse_header_match_tag()
98 			    (cursor->val_size << 8) | cursor->buffer[offset];  in efx_asn1_parse_header_match_tag()
102 	if ((cursor->hdr_size + cursor->val_size) > cursor->length) {  in efx_asn1_parse_header_match_tag()
131 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_enter_tag()  argument
136 	if (cursor == NULL) {  in efx_asn1_enter_tag()
146 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_enter_tag()
153 	cursor->buffer += cursor->hdr_size;  in efx_asn1_enter_tag()
154 	cursor->length = cursor->val_size;  in efx_asn1_enter_tag()
174 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_match_tag_value()  argument
181 	if (cursor == NULL) {  in efx_asn1_match_tag_value()
185 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_match_tag_value()
190 	if (cursor->val_size != val_size) {  in efx_asn1_match_tag_value()
195 	if (memcmp(cursor->buffer + cursor->hdr_size, valp, val_size) != 0) {  in efx_asn1_match_tag_value()
200 	cursor->buffer += cursor->hdr_size + cursor->val_size;  in efx_asn1_match_tag_value()
201 	cursor->length -= cursor->hdr_size + cursor->val_size;  in efx_asn1_match_tag_value()
220 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_skip_tag()  argument
225 	if (cursor == NULL) {  in efx_asn1_skip_tag()
230 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_skip_tag()
235 	cursor->buffer += cursor->hdr_size + cursor->val_size;  in efx_asn1_skip_tag()
236 	cursor->length -= cursor->hdr_size + cursor->val_size;  in efx_asn1_skip_tag()
251 	__inout		efx_asn1_cursor_t	*cursor,  in efx_asn1_get_tag_value()  argument
258 	if (cursor == NULL || valp == NULL || val_sizep == NULL) {  in efx_asn1_get_tag_value()
263 	rc = efx_asn1_parse_header_match_tag(cursor, tag);  in efx_asn1_get_tag_value()
268 	*valp = cursor->buffer + cursor->hdr_size;  in efx_asn1_get_tag_value()
269 	*val_sizep = cursor->val_size;  in efx_asn1_get_tag_value()
311 	efx_asn1_cursor_t cursor;  in efx_check_signed_image_header()  local
320 	cursor.buffer = (uint8_t *)bufferp;  in efx_check_signed_image_header()
321 	cursor.length = buffer_size;  in efx_check_signed_image_header()
324 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_SEQUENCE);  in efx_check_signed_image_header()
329 	rc = efx_asn1_match_tag_value(&cursor, ASN1_TAG_OBJ_ID,  in efx_check_signed_image_header()
335 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_CONS_CONTEXT(0));  in efx_check_signed_image_header()
340 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_SEQUENCE);  in efx_check_signed_image_header()
345 	rc = efx_asn1_match_tag_value(&cursor, ASN1_TAG_INTEGER,  in efx_check_signed_image_header()
351 	rc = efx_asn1_skip_tag(&cursor, ASN1_TAG_SET);  in efx_check_signed_image_header()
356 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_SEQUENCE);  in efx_check_signed_image_header()
361 	rc = efx_asn1_match_tag_value(&cursor, ASN1_TAG_OBJ_ID,  in efx_check_signed_image_header()
367 	rc = efx_asn1_enter_tag(&cursor, ASN1_TAG_CONS_CONTEXT(0));  in efx_check_signed_image_header()
377 	rc = efx_asn1_get_tag_value(&cursor, ASN1_TAG_OCTET_STRING,  in efx_check_signed_image_header()