zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/pkcs7/pk7_doit.c b/ap/lib/libssl/openssl-1.1.1o/crypto/pkcs7/pk7_doit.c
new file mode 100644
index 0000000..f63fbc5
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/pkcs7/pk7_doit.c
@@ -0,0 +1,1184 @@
+/*
+ * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/rand.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+#include <openssl/err.h>
+
+static int add_attribute(STACK_OF(X509_ATTRIBUTE) **sk, int nid, int atrtype,
+ void *value);
+static ASN1_TYPE *get_attribute(STACK_OF(X509_ATTRIBUTE) *sk, int nid);
+
+static int PKCS7_type_is_other(PKCS7 *p7)
+{
+ int isOther = 1;
+
+ int nid = OBJ_obj2nid(p7->type);
+
+ switch (nid) {
+ case NID_pkcs7_data:
+ case NID_pkcs7_signed:
+ case NID_pkcs7_enveloped:
+ case NID_pkcs7_signedAndEnveloped:
+ case NID_pkcs7_digest:
+ case NID_pkcs7_encrypted:
+ isOther = 0;
+ break;
+ default:
+ isOther = 1;
+ }
+
+ return isOther;
+
+}
+
+static ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7)
+{
+ if (PKCS7_type_is_data(p7))
+ return p7->d.data;
+ if (PKCS7_type_is_other(p7) && p7->d.other
+ && (p7->d.other->type == V_ASN1_OCTET_STRING))
+ return p7->d.other->value.octet_string;
+ return NULL;
+}
+
+static int PKCS7_bio_add_digest(BIO **pbio, X509_ALGOR *alg)
+{
+ BIO *btmp;
+ const EVP_MD *md;
+ if ((btmp = BIO_new(BIO_f_md())) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST, ERR_R_BIO_LIB);
+ goto err;
+ }
+
+ md = EVP_get_digestbyobj(alg->algorithm);
+ if (md == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST, PKCS7_R_UNKNOWN_DIGEST_TYPE);
+ goto err;
+ }
+
+ BIO_set_md(btmp, md);
+ if (*pbio == NULL)
+ *pbio = btmp;
+ else if (!BIO_push(*pbio, btmp)) {
+ PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST, ERR_R_BIO_LIB);
+ goto err;
+ }
+ btmp = NULL;
+
+ return 1;
+
+ err:
+ BIO_free(btmp);
+ return 0;
+
+}
+
+static int pkcs7_encode_rinfo(PKCS7_RECIP_INFO *ri,
+ unsigned char *key, int keylen)
+{
+ EVP_PKEY_CTX *pctx = NULL;
+ EVP_PKEY *pkey = NULL;
+ unsigned char *ek = NULL;
+ int ret = 0;
+ size_t eklen;
+
+ pkey = X509_get0_pubkey(ri->cert);
+
+ if (!pkey)
+ return 0;
+
+ pctx = EVP_PKEY_CTX_new(pkey, NULL);
+ if (!pctx)
+ return 0;
+
+ if (EVP_PKEY_encrypt_init(pctx) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_ENCRYPT,
+ EVP_PKEY_CTRL_PKCS7_ENCRYPT, 0, ri) <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_ENCODE_RINFO, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ if (EVP_PKEY_encrypt(pctx, NULL, &eklen, key, keylen) <= 0)
+ goto err;
+
+ ek = OPENSSL_malloc(eklen);
+
+ if (ek == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_ENCODE_RINFO, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (EVP_PKEY_encrypt(pctx, ek, &eklen, key, keylen) <= 0)
+ goto err;
+
+ ASN1_STRING_set0(ri->enc_key, ek, eklen);
+ ek = NULL;
+
+ ret = 1;
+
+ err:
+ EVP_PKEY_CTX_free(pctx);
+ OPENSSL_free(ek);
+ return ret;
+
+}
+
+static int pkcs7_decrypt_rinfo(unsigned char **pek, int *peklen,
+ PKCS7_RECIP_INFO *ri, EVP_PKEY *pkey,
+ size_t fixlen)
+{
+ EVP_PKEY_CTX *pctx = NULL;
+ unsigned char *ek = NULL;
+ size_t eklen;
+
+ int ret = -1;
+
+ pctx = EVP_PKEY_CTX_new(pkey, NULL);
+ if (!pctx)
+ return -1;
+
+ if (EVP_PKEY_decrypt_init(pctx) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DECRYPT,
+ EVP_PKEY_CTRL_PKCS7_DECRYPT, 0, ri) <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ if (EVP_PKEY_decrypt(pctx, NULL, &eklen,
+ ri->enc_key->data, ri->enc_key->length) <= 0)
+ goto err;
+
+ ek = OPENSSL_malloc(eklen);
+
+ if (ek == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (EVP_PKEY_decrypt(pctx, ek, &eklen,
+ ri->enc_key->data, ri->enc_key->length) <= 0
+ || eklen == 0
+ || (fixlen != 0 && eklen != fixlen)) {
+ ret = 0;
+ PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, ERR_R_EVP_LIB);
+ goto err;
+ }
+
+ ret = 1;
+
+ OPENSSL_clear_free(*pek, *peklen);
+ *pek = ek;
+ *peklen = eklen;
+
+ err:
+ EVP_PKEY_CTX_free(pctx);
+ if (!ret)
+ OPENSSL_free(ek);
+
+ return ret;
+}
+
+BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio)
+{
+ int i;
+ BIO *out = NULL, *btmp = NULL;
+ X509_ALGOR *xa = NULL;
+ const EVP_CIPHER *evp_cipher = NULL;
+ STACK_OF(X509_ALGOR) *md_sk = NULL;
+ STACK_OF(PKCS7_RECIP_INFO) *rsk = NULL;
+ X509_ALGOR *xalg = NULL;
+ PKCS7_RECIP_INFO *ri = NULL;
+ ASN1_OCTET_STRING *os = NULL;
+
+ if (p7 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_INVALID_NULL_POINTER);
+ return NULL;
+ }
+ /*
+ * The content field in the PKCS7 ContentInfo is optional, but that really
+ * only applies to inner content (precisely, detached signatures).
+ *
+ * When reading content, missing outer content is therefore treated as an
+ * error.
+ *
+ * When creating content, PKCS7_content_new() must be called before
+ * calling this method, so a NULL p7->d is always an error.
+ */
+ if (p7->d.ptr == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_NO_CONTENT);
+ return NULL;
+ }
+
+ i = OBJ_obj2nid(p7->type);
+ p7->state = PKCS7_S_HEADER;
+
+ switch (i) {
+ case NID_pkcs7_signed:
+ md_sk = p7->d.sign->md_algs;
+ os = PKCS7_get_octet_string(p7->d.sign->contents);
+ break;
+ case NID_pkcs7_signedAndEnveloped:
+ rsk = p7->d.signed_and_enveloped->recipientinfo;
+ md_sk = p7->d.signed_and_enveloped->md_algs;
+ xalg = p7->d.signed_and_enveloped->enc_data->algorithm;
+ evp_cipher = p7->d.signed_and_enveloped->enc_data->cipher;
+ if (evp_cipher == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_CIPHER_NOT_INITIALIZED);
+ goto err;
+ }
+ break;
+ case NID_pkcs7_enveloped:
+ rsk = p7->d.enveloped->recipientinfo;
+ xalg = p7->d.enveloped->enc_data->algorithm;
+ evp_cipher = p7->d.enveloped->enc_data->cipher;
+ if (evp_cipher == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_CIPHER_NOT_INITIALIZED);
+ goto err;
+ }
+ break;
+ case NID_pkcs7_digest:
+ xa = p7->d.digest->md;
+ os = PKCS7_get_octet_string(p7->d.digest->contents);
+ break;
+ case NID_pkcs7_data:
+ break;
+ default:
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
+ goto err;
+ }
+
+ for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++)
+ if (!PKCS7_bio_add_digest(&out, sk_X509_ALGOR_value(md_sk, i)))
+ goto err;
+
+ if (xa && !PKCS7_bio_add_digest(&out, xa))
+ goto err;
+
+ if (evp_cipher != NULL) {
+ unsigned char key[EVP_MAX_KEY_LENGTH];
+ unsigned char iv[EVP_MAX_IV_LENGTH];
+ int keylen, ivlen;
+ EVP_CIPHER_CTX *ctx;
+
+ if ((btmp = BIO_new(BIO_f_cipher())) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAINIT, ERR_R_BIO_LIB);
+ goto err;
+ }
+ BIO_get_cipher_ctx(btmp, &ctx);
+ keylen = EVP_CIPHER_key_length(evp_cipher);
+ ivlen = EVP_CIPHER_iv_length(evp_cipher);
+ xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_type(evp_cipher));
+ if (ivlen > 0)
+ if (RAND_bytes(iv, ivlen) <= 0)
+ goto err;
+ if (EVP_CipherInit_ex(ctx, evp_cipher, NULL, NULL, NULL, 1) <= 0)
+ goto err;
+ if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
+ goto err;
+ if (EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, 1) <= 0)
+ goto err;
+
+ if (ivlen > 0) {
+ if (xalg->parameter == NULL) {
+ xalg->parameter = ASN1_TYPE_new();
+ if (xalg->parameter == NULL)
+ goto err;
+ }
+ if (EVP_CIPHER_param_to_asn1(ctx, xalg->parameter) < 0)
+ goto err;
+ }
+
+ /* Lets do the pub key stuff :-) */
+ for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
+ ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
+ if (pkcs7_encode_rinfo(ri, key, keylen) <= 0)
+ goto err;
+ }
+ OPENSSL_cleanse(key, keylen);
+
+ if (out == NULL)
+ out = btmp;
+ else
+ BIO_push(out, btmp);
+ btmp = NULL;
+ }
+
+ if (bio == NULL) {
+ if (PKCS7_is_detached(p7)) {
+ bio = BIO_new(BIO_s_null());
+ } else if (os && os->length > 0) {
+ bio = BIO_new_mem_buf(os->data, os->length);
+ } else {
+ bio = BIO_new(BIO_s_mem());
+ if (bio == NULL)
+ goto err;
+ BIO_set_mem_eof_return(bio, 0);
+ }
+ if (bio == NULL)
+ goto err;
+ }
+ if (out)
+ BIO_push(out, bio);
+ else
+ out = bio;
+ return out;
+
+ err:
+ BIO_free_all(out);
+ BIO_free_all(btmp);
+ return NULL;
+}
+
+static int pkcs7_cmp_ri(PKCS7_RECIP_INFO *ri, X509 *pcert)
+{
+ int ret;
+ ret = X509_NAME_cmp(ri->issuer_and_serial->issuer,
+ X509_get_issuer_name(pcert));
+ if (ret)
+ return ret;
+ return ASN1_INTEGER_cmp(X509_get_serialNumber(pcert),
+ ri->issuer_and_serial->serial);
+}
+
+/* int */
+BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert)
+{
+ int i, j;
+ BIO *out = NULL, *btmp = NULL, *etmp = NULL, *bio = NULL;
+ X509_ALGOR *xa;
+ ASN1_OCTET_STRING *data_body = NULL;
+ const EVP_MD *evp_md;
+ const EVP_CIPHER *evp_cipher = NULL;
+ EVP_CIPHER_CTX *evp_ctx = NULL;
+ X509_ALGOR *enc_alg = NULL;
+ STACK_OF(X509_ALGOR) *md_sk = NULL;
+ STACK_OF(PKCS7_RECIP_INFO) *rsk = NULL;
+ PKCS7_RECIP_INFO *ri = NULL;
+ unsigned char *ek = NULL, *tkey = NULL;
+ int eklen = 0, tkeylen = 0;
+
+ if (p7 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_INVALID_NULL_POINTER);
+ return NULL;
+ }
+
+ if (p7->d.ptr == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
+ return NULL;
+ }
+
+ i = OBJ_obj2nid(p7->type);
+ p7->state = PKCS7_S_HEADER;
+
+ switch (i) {
+ case NID_pkcs7_signed:
+ /*
+ * p7->d.sign->contents is a PKCS7 structure consisting of a contentType
+ * field and optional content.
+ * data_body is NULL if that structure has no (=detached) content
+ * or if the contentType is wrong (i.e., not "data").
+ */
+ data_body = PKCS7_get_octet_string(p7->d.sign->contents);
+ if (!PKCS7_is_detached(p7) && data_body == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_INVALID_SIGNED_DATA_TYPE);
+ goto err;
+ }
+ md_sk = p7->d.sign->md_algs;
+ break;
+ case NID_pkcs7_signedAndEnveloped:
+ rsk = p7->d.signed_and_enveloped->recipientinfo;
+ md_sk = p7->d.signed_and_enveloped->md_algs;
+ /* data_body is NULL if the optional EncryptedContent is missing. */
+ data_body = p7->d.signed_and_enveloped->enc_data->enc_data;
+ enc_alg = p7->d.signed_and_enveloped->enc_data->algorithm;
+ evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
+ if (evp_cipher == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
+ goto err;
+ }
+ break;
+ case NID_pkcs7_enveloped:
+ rsk = p7->d.enveloped->recipientinfo;
+ enc_alg = p7->d.enveloped->enc_data->algorithm;
+ /* data_body is NULL if the optional EncryptedContent is missing. */
+ data_body = p7->d.enveloped->enc_data->enc_data;
+ evp_cipher = EVP_get_cipherbyobj(enc_alg->algorithm);
+ if (evp_cipher == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
+ goto err;
+ }
+ break;
+ default:
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
+ goto err;
+ }
+
+ /* Detached content must be supplied via in_bio instead. */
+ if (data_body == NULL && in_bio == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, PKCS7_R_NO_CONTENT);
+ goto err;
+ }
+
+ /* We will be checking the signature */
+ if (md_sk != NULL) {
+ for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) {
+ xa = sk_X509_ALGOR_value(md_sk, i);
+ if ((btmp = BIO_new(BIO_f_md())) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, ERR_R_BIO_LIB);
+ goto err;
+ }
+
+ j = OBJ_obj2nid(xa->algorithm);
+ evp_md = EVP_get_digestbynid(j);
+ if (evp_md == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_UNKNOWN_DIGEST_TYPE);
+ goto err;
+ }
+
+ BIO_set_md(btmp, evp_md);
+ if (out == NULL)
+ out = btmp;
+ else
+ BIO_push(out, btmp);
+ btmp = NULL;
+ }
+ }
+
+ if (evp_cipher != NULL) {
+ if ((etmp = BIO_new(BIO_f_cipher())) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE, ERR_R_BIO_LIB);
+ goto err;
+ }
+
+ /*
+ * It was encrypted, we need to decrypt the secret key with the
+ * private key
+ */
+
+ /*
+ * Find the recipientInfo which matches the passed certificate (if
+ * any)
+ */
+
+ if (pcert) {
+ for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
+ ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
+ if (!pkcs7_cmp_ri(ri, pcert))
+ break;
+ ri = NULL;
+ }
+ if (ri == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE);
+ goto err;
+ }
+ }
+
+ /* If we haven't got a certificate try each ri in turn */
+ if (pcert == NULL) {
+ /*
+ * Always attempt to decrypt all rinfo even after success as a
+ * defence against MMA timing attacks.
+ */
+ for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) {
+ ri = sk_PKCS7_RECIP_INFO_value(rsk, i);
+
+ if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey,
+ EVP_CIPHER_key_length(evp_cipher)) < 0)
+ goto err;
+ ERR_clear_error();
+ }
+ } else {
+ /* Only exit on fatal errors, not decrypt failure */
+ if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey, 0) < 0)
+ goto err;
+ ERR_clear_error();
+ }
+
+ evp_ctx = NULL;
+ BIO_get_cipher_ctx(etmp, &evp_ctx);
+ if (EVP_CipherInit_ex(evp_ctx, evp_cipher, NULL, NULL, NULL, 0) <= 0)
+ goto err;
+ if (EVP_CIPHER_asn1_to_param(evp_ctx, enc_alg->parameter) < 0)
+ goto err;
+ /* Generate random key as MMA defence */
+ tkeylen = EVP_CIPHER_CTX_key_length(evp_ctx);
+ tkey = OPENSSL_malloc(tkeylen);
+ if (tkey == NULL)
+ goto err;
+ if (EVP_CIPHER_CTX_rand_key(evp_ctx, tkey) <= 0)
+ goto err;
+ if (ek == NULL) {
+ ek = tkey;
+ eklen = tkeylen;
+ tkey = NULL;
+ }
+
+ if (eklen != EVP_CIPHER_CTX_key_length(evp_ctx)) {
+ /*
+ * Some S/MIME clients don't use the same key and effective key
+ * length. The key length is determined by the size of the
+ * decrypted RSA key.
+ */
+ if (!EVP_CIPHER_CTX_set_key_length(evp_ctx, eklen)) {
+ /* Use random key as MMA defence */
+ OPENSSL_clear_free(ek, eklen);
+ ek = tkey;
+ eklen = tkeylen;
+ tkey = NULL;
+ }
+ }
+ /* Clear errors so we don't leak information useful in MMA */
+ ERR_clear_error();
+ if (EVP_CipherInit_ex(evp_ctx, NULL, NULL, ek, NULL, 0) <= 0)
+ goto err;
+
+ OPENSSL_clear_free(ek, eklen);
+ ek = NULL;
+ OPENSSL_clear_free(tkey, tkeylen);
+ tkey = NULL;
+
+ if (out == NULL)
+ out = etmp;
+ else
+ BIO_push(out, etmp);
+ etmp = NULL;
+ }
+ if (in_bio != NULL) {
+ bio = in_bio;
+ } else {
+ if (data_body->length > 0)
+ bio = BIO_new_mem_buf(data_body->data, data_body->length);
+ else {
+ bio = BIO_new(BIO_s_mem());
+ if (bio == NULL)
+ goto err;
+ BIO_set_mem_eof_return(bio, 0);
+ }
+ if (bio == NULL)
+ goto err;
+ }
+ BIO_push(out, bio);
+ bio = NULL;
+ return out;
+
+ err:
+ OPENSSL_clear_free(ek, eklen);
+ OPENSSL_clear_free(tkey, tkeylen);
+ BIO_free_all(out);
+ BIO_free_all(btmp);
+ BIO_free_all(etmp);
+ BIO_free_all(bio);
+ return NULL;
+}
+
+static BIO *PKCS7_find_digest(EVP_MD_CTX **pmd, BIO *bio, int nid)
+{
+ for (;;) {
+ bio = BIO_find_type(bio, BIO_TYPE_MD);
+ if (bio == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_FIND_DIGEST,
+ PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
+ return NULL;
+ }
+ BIO_get_md_ctx(bio, pmd);
+ if (*pmd == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_FIND_DIGEST, ERR_R_INTERNAL_ERROR);
+ return NULL;
+ }
+ if (EVP_MD_CTX_type(*pmd) == nid)
+ return bio;
+ bio = BIO_next(bio);
+ }
+ return NULL;
+}
+
+static int do_pkcs7_signed_attrib(PKCS7_SIGNER_INFO *si, EVP_MD_CTX *mctx)
+{
+ unsigned char md_data[EVP_MAX_MD_SIZE];
+ unsigned int md_len;
+
+ /* Add signing time if not already present */
+ if (!PKCS7_get_signed_attribute(si, NID_pkcs9_signingTime)) {
+ if (!PKCS7_add0_attrib_signing_time(si, NULL)) {
+ PKCS7err(PKCS7_F_DO_PKCS7_SIGNED_ATTRIB, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ }
+
+ /* Add digest */
+ if (!EVP_DigestFinal_ex(mctx, md_data, &md_len)) {
+ PKCS7err(PKCS7_F_DO_PKCS7_SIGNED_ATTRIB, ERR_R_EVP_LIB);
+ return 0;
+ }
+ if (!PKCS7_add1_attrib_digest(si, md_data, md_len)) {
+ PKCS7err(PKCS7_F_DO_PKCS7_SIGNED_ATTRIB, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ /* Now sign the attributes */
+ if (!PKCS7_SIGNER_INFO_sign(si))
+ return 0;
+
+ return 1;
+}
+
+int PKCS7_dataFinal(PKCS7 *p7, BIO *bio)
+{
+ int ret = 0;
+ int i, j;
+ BIO *btmp;
+ PKCS7_SIGNER_INFO *si;
+ EVP_MD_CTX *mdc, *ctx_tmp;
+ STACK_OF(X509_ATTRIBUTE) *sk;
+ STACK_OF(PKCS7_SIGNER_INFO) *si_sk = NULL;
+ ASN1_OCTET_STRING *os = NULL;
+
+ if (p7 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_INVALID_NULL_POINTER);
+ return 0;
+ }
+
+ if (p7->d.ptr == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_NO_CONTENT);
+ return 0;
+ }
+
+ ctx_tmp = EVP_MD_CTX_new();
+ if (ctx_tmp == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ i = OBJ_obj2nid(p7->type);
+ p7->state = PKCS7_S_HEADER;
+
+ switch (i) {
+ case NID_pkcs7_data:
+ os = p7->d.data;
+ break;
+ case NID_pkcs7_signedAndEnveloped:
+ /* XXXXXXXXXXXXXXXX */
+ si_sk = p7->d.signed_and_enveloped->signer_info;
+ os = p7->d.signed_and_enveloped->enc_data->enc_data;
+ if (os == NULL) {
+ os = ASN1_OCTET_STRING_new();
+ if (os == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ p7->d.signed_and_enveloped->enc_data->enc_data = os;
+ }
+ break;
+ case NID_pkcs7_enveloped:
+ /* XXXXXXXXXXXXXXXX */
+ os = p7->d.enveloped->enc_data->enc_data;
+ if (os == NULL) {
+ os = ASN1_OCTET_STRING_new();
+ if (os == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ p7->d.enveloped->enc_data->enc_data = os;
+ }
+ break;
+ case NID_pkcs7_signed:
+ si_sk = p7->d.sign->signer_info;
+ os = PKCS7_get_octet_string(p7->d.sign->contents);
+ /* If detached data then the content is excluded */
+ if (PKCS7_type_is_data(p7->d.sign->contents) && p7->detached) {
+ ASN1_OCTET_STRING_free(os);
+ os = NULL;
+ p7->d.sign->contents->d.data = NULL;
+ }
+ break;
+
+ case NID_pkcs7_digest:
+ os = PKCS7_get_octet_string(p7->d.digest->contents);
+ /* If detached data then the content is excluded */
+ if (PKCS7_type_is_data(p7->d.digest->contents) && p7->detached) {
+ ASN1_OCTET_STRING_free(os);
+ os = NULL;
+ p7->d.digest->contents->d.data = NULL;
+ }
+ break;
+
+ default:
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
+ goto err;
+ }
+
+ if (si_sk != NULL) {
+ for (i = 0; i < sk_PKCS7_SIGNER_INFO_num(si_sk); i++) {
+ si = sk_PKCS7_SIGNER_INFO_value(si_sk, i);
+ if (si->pkey == NULL)
+ continue;
+
+ j = OBJ_obj2nid(si->digest_alg->algorithm);
+
+ btmp = bio;
+
+ btmp = PKCS7_find_digest(&mdc, btmp, j);
+
+ if (btmp == NULL)
+ goto err;
+
+ /*
+ * We now have the EVP_MD_CTX, lets do the signing.
+ */
+ if (!EVP_MD_CTX_copy_ex(ctx_tmp, mdc))
+ goto err;
+
+ sk = si->auth_attr;
+
+ /*
+ * If there are attributes, we add the digest attribute and only
+ * sign the attributes
+ */
+ if (sk_X509_ATTRIBUTE_num(sk) > 0) {
+ if (!do_pkcs7_signed_attrib(si, ctx_tmp))
+ goto err;
+ } else {
+ unsigned char *abuf = NULL;
+ unsigned int abuflen;
+ abuflen = EVP_PKEY_size(si->pkey);
+ abuf = OPENSSL_malloc(abuflen);
+ if (abuf == NULL)
+ goto err;
+
+ if (!EVP_SignFinal(ctx_tmp, abuf, &abuflen, si->pkey)) {
+ OPENSSL_free(abuf);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, ERR_R_EVP_LIB);
+ goto err;
+ }
+ ASN1_STRING_set0(si->enc_digest, abuf, abuflen);
+ }
+ }
+ } else if (i == NID_pkcs7_digest) {
+ unsigned char md_data[EVP_MAX_MD_SIZE];
+ unsigned int md_len;
+ if (!PKCS7_find_digest(&mdc, bio,
+ OBJ_obj2nid(p7->d.digest->md->algorithm)))
+ goto err;
+ if (!EVP_DigestFinal_ex(mdc, md_data, &md_len))
+ goto err;
+ if (!ASN1_OCTET_STRING_set(p7->d.digest->digest, md_data, md_len))
+ goto err;
+ }
+
+ if (!PKCS7_is_detached(p7)) {
+ /*
+ * NOTE(emilia): I think we only reach os == NULL here because detached
+ * digested data support is broken.
+ */
+ if (os == NULL)
+ goto err;
+ if (!(os->flags & ASN1_STRING_FLAG_NDEF)) {
+ char *cont;
+ long contlen;
+ btmp = BIO_find_type(bio, BIO_TYPE_MEM);
+ if (btmp == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL, PKCS7_R_UNABLE_TO_FIND_MEM_BIO);
+ goto err;
+ }
+ contlen = BIO_get_mem_data(btmp, &cont);
+ /*
+ * Mark the BIO read only then we can use its copy of the data
+ * instead of making an extra copy.
+ */
+ BIO_set_flags(btmp, BIO_FLAGS_MEM_RDONLY);
+ BIO_set_mem_eof_return(btmp, 0);
+ ASN1_STRING_set0(os, (unsigned char *)cont, contlen);
+ }
+ }
+ ret = 1;
+ err:
+ EVP_MD_CTX_free(ctx_tmp);
+ return ret;
+}
+
+int PKCS7_SIGNER_INFO_sign(PKCS7_SIGNER_INFO *si)
+{
+ EVP_MD_CTX *mctx;
+ EVP_PKEY_CTX *pctx = NULL;
+ unsigned char *abuf = NULL;
+ int alen;
+ size_t siglen;
+ const EVP_MD *md = NULL;
+
+ md = EVP_get_digestbyobj(si->digest_alg->algorithm);
+ if (md == NULL)
+ return 0;
+
+ mctx = EVP_MD_CTX_new();
+ if (mctx == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SIGN, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (EVP_DigestSignInit(mctx, &pctx, md, NULL, si->pkey) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
+ EVP_PKEY_CTRL_PKCS7_SIGN, 0, si) <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SIGN, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ alen = ASN1_item_i2d((ASN1_VALUE *)si->auth_attr, &abuf,
+ ASN1_ITEM_rptr(PKCS7_ATTR_SIGN));
+ if (!abuf)
+ goto err;
+ if (EVP_DigestSignUpdate(mctx, abuf, alen) <= 0)
+ goto err;
+ OPENSSL_free(abuf);
+ abuf = NULL;
+ if (EVP_DigestSignFinal(mctx, NULL, &siglen) <= 0)
+ goto err;
+ abuf = OPENSSL_malloc(siglen);
+ if (abuf == NULL)
+ goto err;
+ if (EVP_DigestSignFinal(mctx, abuf, &siglen) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
+ EVP_PKEY_CTRL_PKCS7_SIGN, 1, si) <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SIGN, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ EVP_MD_CTX_free(mctx);
+
+ ASN1_STRING_set0(si->enc_digest, abuf, siglen);
+
+ return 1;
+
+ err:
+ OPENSSL_free(abuf);
+ EVP_MD_CTX_free(mctx);
+ return 0;
+
+}
+
+int PKCS7_dataVerify(X509_STORE *cert_store, X509_STORE_CTX *ctx, BIO *bio,
+ PKCS7 *p7, PKCS7_SIGNER_INFO *si)
+{
+ PKCS7_ISSUER_AND_SERIAL *ias;
+ int ret = 0, i;
+ STACK_OF(X509) *cert;
+ X509 *x509;
+
+ if (p7 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, PKCS7_R_INVALID_NULL_POINTER);
+ return 0;
+ }
+
+ if (p7->d.ptr == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, PKCS7_R_NO_CONTENT);
+ return 0;
+ }
+
+ if (PKCS7_type_is_signed(p7)) {
+ cert = p7->d.sign->cert;
+ } else if (PKCS7_type_is_signedAndEnveloped(p7)) {
+ cert = p7->d.signed_and_enveloped->cert;
+ } else {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, PKCS7_R_WRONG_PKCS7_TYPE);
+ goto err;
+ }
+ /* XXXXXXXXXXXXXXXXXXXXXXX */
+ ias = si->issuer_and_serial;
+
+ x509 = X509_find_by_issuer_and_serial(cert, ias->issuer, ias->serial);
+
+ /* were we able to find the cert in passed to us */
+ if (x509 == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY,
+ PKCS7_R_UNABLE_TO_FIND_CERTIFICATE);
+ goto err;
+ }
+
+ /* Lets verify */
+ if (!X509_STORE_CTX_init(ctx, cert_store, x509, cert)) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, ERR_R_X509_LIB);
+ goto err;
+ }
+ X509_STORE_CTX_set_purpose(ctx, X509_PURPOSE_SMIME_SIGN);
+ i = X509_verify_cert(ctx);
+ if (i <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY, ERR_R_X509_LIB);
+ X509_STORE_CTX_cleanup(ctx);
+ goto err;
+ }
+ X509_STORE_CTX_cleanup(ctx);
+
+ return PKCS7_signatureVerify(bio, p7, si, x509);
+ err:
+ return ret;
+}
+
+int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si,
+ X509 *x509)
+{
+ ASN1_OCTET_STRING *os;
+ EVP_MD_CTX *mdc_tmp, *mdc;
+ int ret = 0, i;
+ int md_type;
+ STACK_OF(X509_ATTRIBUTE) *sk;
+ BIO *btmp;
+ EVP_PKEY *pkey;
+
+ mdc_tmp = EVP_MD_CTX_new();
+ if (mdc_tmp == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (!PKCS7_type_is_signed(p7) && !PKCS7_type_is_signedAndEnveloped(p7)) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, PKCS7_R_WRONG_PKCS7_TYPE);
+ goto err;
+ }
+
+ md_type = OBJ_obj2nid(si->digest_alg->algorithm);
+
+ btmp = bio;
+ for (;;) {
+ if ((btmp == NULL) ||
+ ((btmp = BIO_find_type(btmp, BIO_TYPE_MD)) == NULL)) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
+ PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
+ goto err;
+ }
+ BIO_get_md_ctx(btmp, &mdc);
+ if (mdc == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+ if (EVP_MD_CTX_type(mdc) == md_type)
+ break;
+ /*
+ * Workaround for some broken clients that put the signature OID
+ * instead of the digest OID in digest_alg->algorithm
+ */
+ if (EVP_MD_pkey_type(EVP_MD_CTX_md(mdc)) == md_type)
+ break;
+ btmp = BIO_next(btmp);
+ }
+
+ /*
+ * mdc is the digest ctx that we want, unless there are attributes, in
+ * which case the digest is the signed attributes
+ */
+ if (!EVP_MD_CTX_copy_ex(mdc_tmp, mdc))
+ goto err;
+
+ sk = si->auth_attr;
+ if ((sk != NULL) && (sk_X509_ATTRIBUTE_num(sk) != 0)) {
+ unsigned char md_dat[EVP_MAX_MD_SIZE], *abuf = NULL;
+ unsigned int md_len;
+ int alen;
+ ASN1_OCTET_STRING *message_digest;
+
+ if (!EVP_DigestFinal_ex(mdc_tmp, md_dat, &md_len))
+ goto err;
+ message_digest = PKCS7_digest_from_attributes(sk);
+ if (!message_digest) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
+ PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
+ goto err;
+ }
+ if ((message_digest->length != (int)md_len) ||
+ (memcmp(message_digest->data, md_dat, md_len))) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, PKCS7_R_DIGEST_FAILURE);
+ ret = -1;
+ goto err;
+ }
+
+ if (!EVP_VerifyInit_ex(mdc_tmp, EVP_get_digestbynid(md_type), NULL))
+ goto err;
+
+ alen = ASN1_item_i2d((ASN1_VALUE *)sk, &abuf,
+ ASN1_ITEM_rptr(PKCS7_ATTR_VERIFY));
+ if (alen <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, ERR_R_ASN1_LIB);
+ ret = -1;
+ goto err;
+ }
+ if (!EVP_VerifyUpdate(mdc_tmp, abuf, alen))
+ goto err;
+
+ OPENSSL_free(abuf);
+ }
+
+ os = si->enc_digest;
+ pkey = X509_get0_pubkey(x509);
+ if (!pkey) {
+ ret = -1;
+ goto err;
+ }
+
+ i = EVP_VerifyFinal(mdc_tmp, os->data, os->length, pkey);
+ if (i <= 0) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY, PKCS7_R_SIGNATURE_FAILURE);
+ ret = -1;
+ goto err;
+ }
+ ret = 1;
+ err:
+ EVP_MD_CTX_free(mdc_tmp);
+ return ret;
+}
+
+PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx)
+{
+ STACK_OF(PKCS7_RECIP_INFO) *rsk;
+ PKCS7_RECIP_INFO *ri;
+ int i;
+
+ i = OBJ_obj2nid(p7->type);
+ if (i != NID_pkcs7_signedAndEnveloped)
+ return NULL;
+ if (p7->d.signed_and_enveloped == NULL)
+ return NULL;
+ rsk = p7->d.signed_and_enveloped->recipientinfo;
+ if (rsk == NULL)
+ return NULL;
+ if (sk_PKCS7_RECIP_INFO_num(rsk) <= idx)
+ return NULL;
+ ri = sk_PKCS7_RECIP_INFO_value(rsk, idx);
+ return ri->issuer_and_serial;
+}
+
+ASN1_TYPE *PKCS7_get_signed_attribute(PKCS7_SIGNER_INFO *si, int nid)
+{
+ return get_attribute(si->auth_attr, nid);
+}
+
+ASN1_TYPE *PKCS7_get_attribute(PKCS7_SIGNER_INFO *si, int nid)
+{
+ return get_attribute(si->unauth_attr, nid);
+}
+
+static ASN1_TYPE *get_attribute(STACK_OF(X509_ATTRIBUTE) *sk, int nid)
+{
+ int idx;
+ X509_ATTRIBUTE *xa;
+ idx = X509at_get_attr_by_NID(sk, nid, -1);
+ xa = X509at_get_attr(sk, idx);
+ return X509_ATTRIBUTE_get0_type(xa, 0);
+}
+
+ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK_OF(X509_ATTRIBUTE) *sk)
+{
+ ASN1_TYPE *astype;
+ if ((astype = get_attribute(sk, NID_pkcs9_messageDigest)) == NULL)
+ return NULL;
+ return astype->value.octet_string;
+}
+
+int PKCS7_set_signed_attributes(PKCS7_SIGNER_INFO *p7si,
+ STACK_OF(X509_ATTRIBUTE) *sk)
+{
+ int i;
+
+ sk_X509_ATTRIBUTE_pop_free(p7si->auth_attr, X509_ATTRIBUTE_free);
+ p7si->auth_attr = sk_X509_ATTRIBUTE_dup(sk);
+ if (p7si->auth_attr == NULL)
+ return 0;
+ for (i = 0; i < sk_X509_ATTRIBUTE_num(sk); i++) {
+ if ((sk_X509_ATTRIBUTE_set(p7si->auth_attr, i,
+ X509_ATTRIBUTE_dup(sk_X509_ATTRIBUTE_value
+ (sk, i))))
+ == NULL)
+ return 0;
+ }
+ return 1;
+}
+
+int PKCS7_set_attributes(PKCS7_SIGNER_INFO *p7si,
+ STACK_OF(X509_ATTRIBUTE) *sk)
+{
+ int i;
+
+ sk_X509_ATTRIBUTE_pop_free(p7si->unauth_attr, X509_ATTRIBUTE_free);
+ p7si->unauth_attr = sk_X509_ATTRIBUTE_dup(sk);
+ if (p7si->unauth_attr == NULL)
+ return 0;
+ for (i = 0; i < sk_X509_ATTRIBUTE_num(sk); i++) {
+ if ((sk_X509_ATTRIBUTE_set(p7si->unauth_attr, i,
+ X509_ATTRIBUTE_dup(sk_X509_ATTRIBUTE_value
+ (sk, i))))
+ == NULL)
+ return 0;
+ }
+ return 1;
+}
+
+int PKCS7_add_signed_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int atrtype,
+ void *value)
+{
+ return add_attribute(&(p7si->auth_attr), nid, atrtype, value);
+}
+
+int PKCS7_add_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int atrtype,
+ void *value)
+{
+ return add_attribute(&(p7si->unauth_attr), nid, atrtype, value);
+}
+
+static int add_attribute(STACK_OF(X509_ATTRIBUTE) **sk, int nid, int atrtype,
+ void *value)
+{
+ X509_ATTRIBUTE *attr = NULL;
+
+ if (*sk == NULL) {
+ if ((*sk = sk_X509_ATTRIBUTE_new_null()) == NULL)
+ return 0;
+ new_attrib:
+ if ((attr = X509_ATTRIBUTE_create(nid, atrtype, value)) == NULL)
+ return 0;
+ if (!sk_X509_ATTRIBUTE_push(*sk, attr)) {
+ X509_ATTRIBUTE_free(attr);
+ return 0;
+ }
+ } else {
+ int i;
+
+ for (i = 0; i < sk_X509_ATTRIBUTE_num(*sk); i++) {
+ attr = sk_X509_ATTRIBUTE_value(*sk, i);
+ if (OBJ_obj2nid(X509_ATTRIBUTE_get0_object(attr)) == nid) {
+ X509_ATTRIBUTE_free(attr);
+ attr = X509_ATTRIBUTE_create(nid, atrtype, value);
+ if (attr == NULL)
+ return 0;
+ if (!sk_X509_ATTRIBUTE_set(*sk, i, attr)) {
+ X509_ATTRIBUTE_free(attr);
+ return 0;
+ }
+ goto end;
+ }
+ }
+ goto new_attrib;
+ }
+ end:
+ return 1;
+}