crypto/asymmetric_keys/pkcs7_parser.c

117 	struct pkcs7_parse_context *ctx;
121 	ctx = kzalloc(sizeof(struct pkcs7_parse_context), GFP_KERNEL);
122 	if (!ctx)
124 	ctx->msg = kzalloc(sizeof(struct pkcs7_message), GFP_KERNEL);
125 	if (!ctx->msg)
127 	ctx->sinfo = kzalloc(sizeof(struct pkcs7_signed_info), GFP_KERNEL);
128 	if (!ctx->sinfo)
130 	ctx->sinfo->sig = kzalloc(sizeof(struct public_key_signature),
132 	if (!ctx->sinfo->sig)
135 	ctx->data = (unsigned long)data;
136 	ctx->ppcerts = &ctx->certs;
137 	ctx->ppsinfo = &ctx->msg->signed_infos;
140 	ret = asn1_ber_decoder(&pkcs7_decoder, ctx, data, datalen);
146 	ret = pkcs7_check_authattrs(ctx->msg);
152 	msg = ctx->msg;
153 	ctx->msg = NULL;
156 	while (ctx->certs) {
157 		struct x509_certificate *cert = ctx->certs;
158 		ctx->certs = cert->next;
162 	pkcs7_free_signed_info(ctx->sinfo);
164 	pkcs7_free_message(ctx->msg);
166 	kfree(ctx);
208 	struct pkcs7_parse_context *ctx = context;
210 	ctx->last_oid = look_up_OID(value, vlen);
211 	if (ctx->last_oid == OID__NR) {
215 		       (unsigned long)value - ctx->data, buffer);
227 	struct pkcs7_parse_context *ctx = context;
229 	switch (ctx->last_oid) {
231 		ctx->sinfo->sig->hash_algo = "sha1";
234 		ctx->sinfo->sig->hash_algo = "sha256";
237 		ctx->sinfo->sig->hash_algo = "sha384";
240 		ctx->sinfo->sig->hash_algo = "sha512";
243 		ctx->sinfo->sig->hash_algo = "sha224";
246 		ctx->sinfo->sig->hash_algo = "sm3";
249 		ctx->sinfo->sig->hash_algo = "streebog256";
252 		ctx->sinfo->sig->hash_algo = "streebog512";
255 		ctx->sinfo->sig->hash_algo = "sha3-256";
258 		ctx->sinfo->sig->hash_algo = "sha3-384";
261 		ctx->sinfo->sig->hash_algo = "sha3-512";
264 		printk("Unsupported digest algo: %u\n", ctx->last_oid);
277 	struct pkcs7_parse_context *ctx = context;
279 	switch (ctx->last_oid) {
281 		ctx->sinfo->sig->pkey_algo = "rsa";
282 		ctx->sinfo->sig->encoding = "pkcs1";
292 		ctx->sinfo->sig->pkey_algo = "ecdsa";
293 		ctx->sinfo->sig->encoding = "x962";
296 		ctx->sinfo->sig->pkey_algo = "sm2";
297 		ctx->sinfo->sig->encoding = "raw";
301 		ctx->sinfo->sig->pkey_algo = "ecrdsa";
302 		ctx->sinfo->sig->encoding = "raw";
305 		printk("Unsupported pkey algo: %u\n", ctx->last_oid);
318 	struct pkcs7_parse_context *ctx = context;
320 	if (ctx->last_oid != OID_signed_data) {
335 	struct pkcs7_parse_context *ctx = context;
341 	ctx->msg->version = version = *(const u8 *)value;
369 	struct pkcs7_parse_context *ctx = context;
381 		if (ctx->msg->version != 1)
383 		ctx->expect_skid = false;
387 		if (ctx->msg->version == 1)
389 		ctx->expect_skid = true;
412 	struct pkcs7_parse_context *ctx = context;
417 			 tag, (unsigned long)ctx - ctx->data);
436 	x509->index = ++ctx->x509_index;
440 	*ctx->ppcerts = x509;
441 	ctx->ppcerts = &x509->next;
452 	struct pkcs7_parse_context *ctx = context;
456 	*ctx->ppcerts = ctx->msg->certs;
457 	ctx->msg->certs = ctx->certs;
458 	ctx->certs = NULL;
459 	ctx->ppcerts = &ctx->certs;
470 	struct pkcs7_parse_context *ctx = context;
472 	if (ctx->last_oid != OID_data &&
473 	    ctx->last_oid != OID_msIndirectData) {
474 		pr_warn("Unsupported data type %d\n", ctx->last_oid);
478 	ctx->msg->data_type = ctx->last_oid;
490 	struct pkcs7_parse_context *ctx = context;
494 	ctx->msg->data = value;
495 	ctx->msg->data_len = vlen;
496 	ctx->msg->data_hdrlen = hdrlen;
507 	struct pkcs7_parse_context *ctx = context;
508 	struct pkcs7_signed_info *sinfo = ctx->sinfo;
513 	switch (ctx->last_oid) {
518 		if (content_type != ctx->msg->data_type) {
520 				ctx->msg->data_type, sinfo->index,
547 		if (ctx->msg->data_type != OID_msIndirectData) {
567 		if (ctx->msg->data_type != OID_msIndirectData) {
590 	struct pkcs7_parse_context *ctx = context;
591 	struct pkcs7_signed_info *sinfo = ctx->sinfo;
599 	if (ctx->msg->data_type != OID_msIndirectData &&
618 	struct pkcs7_parse_context *ctx = context;
619 	ctx->raw_serial = value;
620 	ctx->raw_serial_size = vlen;
631 	struct pkcs7_parse_context *ctx = context;
632 	ctx->raw_issuer = value;
633 	ctx->raw_issuer_size = vlen;
644 	struct pkcs7_parse_context *ctx = context;
648 	ctx->raw_skid = value;
649 	ctx->raw_skid_size = vlen;
660 	struct pkcs7_parse_context *ctx = context;
662 	ctx->sinfo->sig->s = kmemdup(value, vlen, GFP_KERNEL);
663 	if (!ctx->sinfo->sig->s)
666 	ctx->sinfo->sig->s_size = vlen;
677 	struct pkcs7_parse_context *ctx = context;
678 	struct pkcs7_signed_info *sinfo = ctx->sinfo;
681 	if (ctx->msg->data_type == OID_msIndirectData && !sinfo->authattrs) {
687 	if (!ctx->expect_skid) {
688 		kid = asymmetric_key_generate_id(ctx->raw_serial,
689 						 ctx->raw_serial_size,
690 						 ctx->raw_issuer,
691 						 ctx->raw_issuer_size);
693 		kid = asymmetric_key_generate_id(ctx->raw_skid,
694 						 ctx->raw_skid_size,
703 	sinfo->index = ++ctx->sinfo_index;
704 	*ctx->ppsinfo = sinfo;
705 	ctx->ppsinfo = &sinfo->next;
706 	ctx->sinfo = kzalloc(sizeof(struct pkcs7_signed_info), GFP_KERNEL);
707 	if (!ctx->sinfo)
709 	ctx->sinfo->sig = kzalloc(sizeof(struct public_key_signature),
711 	if (!ctx->sinfo->sig)