initial/final commitHEADmaster

1 files changed, 459 insertions, 0 deletions

diff --git a/openssl-1.1.0h/crypto/x509/x509_cmp.c b/openssl-1.1.0h/crypto/x509/x509_cmp.c
new file mode 100644
index 0000000..0105635
--- /dev/null
+++ b/openssl-1.1.0h/crypto/x509/x509_cmp.c
@@ -0,0 +1,459 @@
+/*
+ * Copyright 1995-2016 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 <ctype.h>
+#include "internal/cryptlib.h"
+#include <openssl/asn1.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+#include "internal/x509_int.h"
+
+int X509_issuer_and_serial_cmp(const X509 *a, const X509 *b)
+{
+    int i;
+    const X509_CINF *ai, *bi;
+
+    ai = &a->cert_info;
+    bi = &b->cert_info;
+    i = ASN1_INTEGER_cmp(&ai->serialNumber, &bi->serialNumber);
+    if (i)
+        return (i);
+    return (X509_NAME_cmp(ai->issuer, bi->issuer));
+}
+
+#ifndef OPENSSL_NO_MD5
+unsigned long X509_issuer_and_serial_hash(X509 *a)
+{
+    unsigned long ret = 0;
+    EVP_MD_CTX *ctx = EVP_MD_CTX_new();
+    unsigned char md[16];
+    char *f;
+
+    if (ctx == NULL)
+        goto err;
+    f = X509_NAME_oneline(a->cert_info.issuer, NULL, 0);
+    if (!EVP_DigestInit_ex(ctx, EVP_md5(), NULL))
+        goto err;
+    if (!EVP_DigestUpdate(ctx, (unsigned char *)f, strlen(f)))
+        goto err;
+    OPENSSL_free(f);
+    if (!EVP_DigestUpdate
+        (ctx, (unsigned char *)a->cert_info.serialNumber.data,
+         (unsigned long)a->cert_info.serialNumber.length))
+        goto err;
+    if (!EVP_DigestFinal_ex(ctx, &(md[0]), NULL))
+        goto err;
+    ret = (((unsigned long)md[0]) | ((unsigned long)md[1] << 8L) |
+           ((unsigned long)md[2] << 16L) | ((unsigned long)md[3] << 24L)
+        ) & 0xffffffffL;
+ err:
+    EVP_MD_CTX_free(ctx);
+    return (ret);
+}
+#endif
+
+int X509_issuer_name_cmp(const X509 *a, const X509 *b)
+{
+    return (X509_NAME_cmp(a->cert_info.issuer, b->cert_info.issuer));
+}
+
+int X509_subject_name_cmp(const X509 *a, const X509 *b)
+{
+    return (X509_NAME_cmp(a->cert_info.subject, b->cert_info.subject));
+}
+
+int X509_CRL_cmp(const X509_CRL *a, const X509_CRL *b)
+{
+    return (X509_NAME_cmp(a->crl.issuer, b->crl.issuer));
+}
+
+int X509_CRL_match(const X509_CRL *a, const X509_CRL *b)
+{
+    return memcmp(a->sha1_hash, b->sha1_hash, 20);
+}
+
+X509_NAME *X509_get_issuer_name(const X509 *a)
+{
+    return (a->cert_info.issuer);
+}
+
+unsigned long X509_issuer_name_hash(X509 *x)
+{
+    return (X509_NAME_hash(x->cert_info.issuer));
+}
+
+#ifndef OPENSSL_NO_MD5
+unsigned long X509_issuer_name_hash_old(X509 *x)
+{
+    return (X509_NAME_hash_old(x->cert_info.issuer));
+}
+#endif
+
+X509_NAME *X509_get_subject_name(const X509 *a)
+{
+    return (a->cert_info.subject);
+}
+
+ASN1_INTEGER *X509_get_serialNumber(X509 *a)
+{
+    return &a->cert_info.serialNumber;
+}
+
+const ASN1_INTEGER *X509_get0_serialNumber(const X509 *a)
+{
+    return &a->cert_info.serialNumber;
+}
+
+unsigned long X509_subject_name_hash(X509 *x)
+{
+    return (X509_NAME_hash(x->cert_info.subject));
+}
+
+#ifndef OPENSSL_NO_MD5
+unsigned long X509_subject_name_hash_old(X509 *x)
+{
+    return (X509_NAME_hash_old(x->cert_info.subject));
+}
+#endif
+
+/*
+ * Compare two certificates: they must be identical for this to work. NB:
+ * Although "cmp" operations are generally prototyped to take "const"
+ * arguments (eg. for use in STACKs), the way X509 handling is - these
+ * operations may involve ensuring the hashes are up-to-date and ensuring
+ * certain cert information is cached. So this is the point where the
+ * "depth-first" constification tree has to halt with an evil cast.
+ */
+int X509_cmp(const X509 *a, const X509 *b)
+{
+    int rv;
+    /* ensure hash is valid */
+    X509_check_purpose((X509 *)a, -1, 0);
+    X509_check_purpose((X509 *)b, -1, 0);
+
+    rv = memcmp(a->sha1_hash, b->sha1_hash, SHA_DIGEST_LENGTH);
+    if (rv)
+        return rv;
+    /* Check for match against stored encoding too */
+    if (!a->cert_info.enc.modified && !b->cert_info.enc.modified) {
+        if (a->cert_info.enc.len < b->cert_info.enc.len)
+            return -1;
+        if (a->cert_info.enc.len > b->cert_info.enc.len)
+            return 1;
+        return memcmp(a->cert_info.enc.enc, b->cert_info.enc.enc,
+                      a->cert_info.enc.len);
+    }
+    return rv;
+}
+
+int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b)
+{
+    int ret;
+
+    /* Ensure canonical encoding is present and up to date */
+
+    if (!a->canon_enc || a->modified) {
+        ret = i2d_X509_NAME((X509_NAME *)a, NULL);
+        if (ret < 0)
+            return -2;
+    }
+
+    if (!b->canon_enc || b->modified) {
+        ret = i2d_X509_NAME((X509_NAME *)b, NULL);
+        if (ret < 0)
+            return -2;
+    }
+
+    ret = a->canon_enclen - b->canon_enclen;
+
+    if (ret)
+        return ret;
+
+    return memcmp(a->canon_enc, b->canon_enc, a->canon_enclen);
+
+}
+
+unsigned long X509_NAME_hash(X509_NAME *x)
+{
+    unsigned long ret = 0;
+    unsigned char md[SHA_DIGEST_LENGTH];
+
+    /* Make sure X509_NAME structure contains valid cached encoding */
+    i2d_X509_NAME(x, NULL);
+    if (!EVP_Digest(x->canon_enc, x->canon_enclen, md, NULL, EVP_sha1(),
+                    NULL))
+        return 0;
+
+    ret = (((unsigned long)md[0]) | ((unsigned long)md[1] << 8L) |
+           ((unsigned long)md[2] << 16L) | ((unsigned long)md[3] << 24L)
+        ) & 0xffffffffL;
+    return (ret);
+}
+
+#ifndef OPENSSL_NO_MD5
+/*
+ * I now DER encode the name and hash it.  Since I cache the DER encoding,
+ * this is reasonably efficient.
+ */
+
+unsigned long X509_NAME_hash_old(X509_NAME *x)
+{
+    EVP_MD_CTX *md_ctx = EVP_MD_CTX_new();
+    unsigned long ret = 0;
+    unsigned char md[16];
+
+    if (md_ctx == NULL)
+        return ret;
+
+    /* Make sure X509_NAME structure contains valid cached encoding */
+    i2d_X509_NAME(x, NULL);
+    EVP_MD_CTX_set_flags(md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
+    if (EVP_DigestInit_ex(md_ctx, EVP_md5(), NULL)
+        && EVP_DigestUpdate(md_ctx, x->bytes->data, x->bytes->length)
+        && EVP_DigestFinal_ex(md_ctx, md, NULL))
+        ret = (((unsigned long)md[0]) | ((unsigned long)md[1] << 8L) |
+               ((unsigned long)md[2] << 16L) | ((unsigned long)md[3] << 24L)
+            ) & 0xffffffffL;
+    EVP_MD_CTX_free(md_ctx);
+
+    return (ret);
+}
+#endif
+
+/* Search a stack of X509 for a match */
+X509 *X509_find_by_issuer_and_serial(STACK_OF(X509) *sk, X509_NAME *name,
+                                     ASN1_INTEGER *serial)
+{
+    int i;
+    X509 x, *x509 = NULL;
+
+    if (!sk)
+        return NULL;
+
+    x.cert_info.serialNumber = *serial;
+    x.cert_info.issuer = name;
+
+    for (i = 0; i < sk_X509_num(sk); i++) {
+        x509 = sk_X509_value(sk, i);
+        if (X509_issuer_and_serial_cmp(x509, &x) == 0)
+            return (x509);
+    }
+    return (NULL);
+}
+
+X509 *X509_find_by_subject(STACK_OF(X509) *sk, X509_NAME *name)
+{
+    X509 *x509;
+    int i;
+
+    for (i = 0; i < sk_X509_num(sk); i++) {
+        x509 = sk_X509_value(sk, i);
+        if (X509_NAME_cmp(X509_get_subject_name(x509), name) == 0)
+            return (x509);
+    }
+    return (NULL);
+}
+
+EVP_PKEY *X509_get0_pubkey(const X509 *x)
+{
+    if (x == NULL)
+        return NULL;
+    return X509_PUBKEY_get0(x->cert_info.key);
+}
+
+EVP_PKEY *X509_get_pubkey(X509 *x)
+{
+    if (x == NULL)
+        return NULL;
+    return X509_PUBKEY_get(x->cert_info.key);
+}
+
+int X509_check_private_key(const X509 *x, const EVP_PKEY *k)
+{
+    const EVP_PKEY *xk;
+    int ret;
+
+    xk = X509_get0_pubkey(x);
+
+    if (xk)
+        ret = EVP_PKEY_cmp(xk, k);
+    else
+        ret = -2;
+
+    switch (ret) {
+    case 1:
+        break;
+    case 0:
+        X509err(X509_F_X509_CHECK_PRIVATE_KEY, X509_R_KEY_VALUES_MISMATCH);
+        break;
+    case -1:
+        X509err(X509_F_X509_CHECK_PRIVATE_KEY, X509_R_KEY_TYPE_MISMATCH);
+        break;
+    case -2:
+        X509err(X509_F_X509_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE);
+    }
+    if (ret > 0)
+        return 1;
+    return 0;
+}
+
+/*
+ * Check a suite B algorithm is permitted: pass in a public key and the NID
+ * of its signature (or 0 if no signature). The pflags is a pointer to a
+ * flags field which must contain the suite B verification flags.
+ */
+
+#ifndef OPENSSL_NO_EC
+
+static int check_suite_b(EVP_PKEY *pkey, int sign_nid, unsigned long *pflags)
+{
+    const EC_GROUP *grp = NULL;
+    int curve_nid;
+    if (pkey && EVP_PKEY_id(pkey) == EVP_PKEY_EC)
+        grp = EC_KEY_get0_group(EVP_PKEY_get0_EC_KEY(pkey));
+    if (!grp)
+        return X509_V_ERR_SUITE_B_INVALID_ALGORITHM;
+    curve_nid = EC_GROUP_get_curve_name(grp);
+    /* Check curve is consistent with LOS */
+    if (curve_nid == NID_secp384r1) { /* P-384 */
+        /*
+         * Check signature algorithm is consistent with curve.
+         */
+        if (sign_nid != -1 && sign_nid != NID_ecdsa_with_SHA384)
+            return X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM;
+        if (!(*pflags & X509_V_FLAG_SUITEB_192_LOS))
+            return X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED;
+        /* If we encounter P-384 we cannot use P-256 later */
+        *pflags &= ~X509_V_FLAG_SUITEB_128_LOS_ONLY;
+    } else if (curve_nid == NID_X9_62_prime256v1) { /* P-256 */
+        if (sign_nid != -1 && sign_nid != NID_ecdsa_with_SHA256)
+            return X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM;
+        if (!(*pflags & X509_V_FLAG_SUITEB_128_LOS_ONLY))
+            return X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED;
+    } else
+        return X509_V_ERR_SUITE_B_INVALID_CURVE;
+
+    return X509_V_OK;
+}
+
+int X509_chain_check_suiteb(int *perror_depth, X509 *x, STACK_OF(X509) *chain,
+                            unsigned long flags)
+{
+    int rv, i, sign_nid;
+    EVP_PKEY *pk;
+    unsigned long tflags = flags;
+
+    if (!(flags & X509_V_FLAG_SUITEB_128_LOS))
+        return X509_V_OK;
+
+    /* If no EE certificate passed in must be first in chain */
+    if (x == NULL) {
+        x = sk_X509_value(chain, 0);
+        i = 1;
+    } else
+        i = 0;
+
+    pk = X509_get0_pubkey(x);
+
+    /*
+     * With DANE-EE(3) success, or DANE-EE(3)/PKIX-EE(1) failure we don't build
+     * a chain all, just report trust success or failure, but must also report
+     * Suite-B errors if applicable.  This is indicated via a NULL chain
+     * pointer.  All we need to do is check the leaf key algorithm.
+     */
+    if (chain == NULL)
+        return check_suite_b(pk, -1, &tflags);
+
+    if (X509_get_version(x) != 2) {
+        rv = X509_V_ERR_SUITE_B_INVALID_VERSION;
+        /* Correct error depth */
+        i = 0;
+        goto end;
+    }
+
+    /* Check EE key only */
+    rv = check_suite_b(pk, -1, &tflags);
+    if (rv != X509_V_OK) {
+        /* Correct error depth */
+        i = 0;
+        goto end;
+    }
+    for (; i < sk_X509_num(chain); i++) {
+        sign_nid = X509_get_signature_nid(x);
+        x = sk_X509_value(chain, i);
+        if (X509_get_version(x) != 2) {
+            rv = X509_V_ERR_SUITE_B_INVALID_VERSION;
+            goto end;
+        }
+        pk = X509_get0_pubkey(x);
+        rv = check_suite_b(pk, sign_nid, &tflags);
+        if (rv != X509_V_OK)
+            goto end;
+    }
+
+    /* Final check: root CA signature */
+    rv = check_suite_b(pk, X509_get_signature_nid(x), &tflags);
+ end:
+    if (rv != X509_V_OK) {
+        /* Invalid signature or LOS errors are for previous cert */
+        if ((rv == X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM
+             || rv == X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED) && i)
+            i--;
+        /*
+         * If we have LOS error and flags changed then we are signing P-384
+         * with P-256. Use more meaningful error.
+         */
+        if (rv == X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED && flags != tflags)
+            rv = X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256;
+        if (perror_depth)
+            *perror_depth = i;
+    }
+    return rv;
+}
+
+int X509_CRL_check_suiteb(X509_CRL *crl, EVP_PKEY *pk, unsigned long flags)
+{
+    int sign_nid;
+    if (!(flags & X509_V_FLAG_SUITEB_128_LOS))
+        return X509_V_OK;
+    sign_nid = OBJ_obj2nid(crl->crl.sig_alg.algorithm);
+    return check_suite_b(pk, sign_nid, &flags);
+}
+
+#else
+int X509_chain_check_suiteb(int *perror_depth, X509 *x, STACK_OF(X509) *chain,
+                            unsigned long flags)
+{
+    return 0;
+}
+
+int X509_CRL_check_suiteb(X509_CRL *crl, EVP_PKEY *pk, unsigned long flags)
+{
+    return 0;
+}
+
+#endif
+/*
+ * Not strictly speaking an "up_ref" as a STACK doesn't have a reference
+ * count but it has the same effect by duping the STACK and upping the ref of
+ * each X509 structure.
+ */
+STACK_OF(X509) *X509_chain_up_ref(STACK_OF(X509) *chain)
+{
+    STACK_OF(X509) *ret;
+    int i;
+    ret = sk_X509_dup(chain);
+    for (i = 0; i < sk_X509_num(ret); i++) {
+        X509 *x = sk_X509_value(ret, i);
+        X509_up_ref(x);
+    }
+    return ret;
+}