EVP,KDF: Add more error code along some return 0 in ...

methods :
 - EVP_PBE_scrypt
 - EVP_PKEY_meth_add0
 - EVP_PKEY_meth_new
 - EVP_PKEY_CTX_dup
Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NBernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: NMatthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/5783)

crypto/err/openssl.txt

@@ -702,6 +702,8 @@ EVP_F_EVP_PKEY_GET0_RSA:121:EVP_PKEY_get0_RSA
 EVP_F_EVP_PKEY_GET0_SIPHASH:172:EVP_PKEY_get0_siphash
 EVP_F_EVP_PKEY_KEYGEN:146:EVP_PKEY_keygen
 EVP_F_EVP_PKEY_KEYGEN_INIT:147:EVP_PKEY_keygen_init
+EVP_F_EVP_PKEY_METH_ADD0:194:EVP_PKEY_meth_add0
+EVP_F_EVP_PKEY_METH_NEW:195:EVP_PKEY_meth_new
 EVP_F_EVP_PKEY_NEW:106:EVP_PKEY_new
 EVP_F_EVP_PKEY_NEW_CMAC_KEY:193:EVP_PKEY_new_CMAC_key
 EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY:191:EVP_PKEY_new_raw_private_key
@@ -733,6 +735,8 @@ KDF_F_PKEY_HKDF_DERIVE:102:pkey_hkdf_derive
 KDF_F_PKEY_SCRYPT_CTRL_STR:104:pkey_scrypt_ctrl_str
 KDF_F_PKEY_SCRYPT_CTRL_UINT64:105:pkey_scrypt_ctrl_uint64
 KDF_F_PKEY_SCRYPT_DERIVE:109:pkey_scrypt_derive
+KDF_F_PKEY_SCRYPT_INIT:106:pkey_scrypt_init
+KDF_F_PKEY_SCRYPT_SET_MEMBUF:107:pkey_scrypt_set_membuf
 KDF_F_PKEY_TLS1_PRF_CTRL_STR:100:pkey_tls1_prf_ctrl_str
 KDF_F_PKEY_TLS1_PRF_DERIVE:101:pkey_tls1_prf_derive
 OBJ_F_OBJ_ADD_OBJECT:105:OBJ_add_object
@@ -2109,6 +2113,7 @@ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE:150:\
 	operation not supported for this keytype
 EVP_R_OPERATON_NOT_INITIALIZED:151:operaton not initialized
 EVP_R_PARTIALLY_OVERLAPPING:162:partially overlapping buffers
+EVP_R_PBKDF2_ERROR:181:pbkdf2 error
 EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED:179:\
 	pkey application asn1 method already registered
 EVP_R_PRIVATE_KEY_DECODE_ERROR:145:private key decode error

crypto/evp/evp_err.c

@@ -92,6 +92,8 @@ static const ERR_STRING_DATA EVP_str_functs[] = {
     {ERR_PACK(ERR_LIB_EVP, EVP_F_EVP_PKEY_KEYGEN, 0), "EVP_PKEY_keygen"},
     {ERR_PACK(ERR_LIB_EVP, EVP_F_EVP_PKEY_KEYGEN_INIT, 0),
      "EVP_PKEY_keygen_init"},
+    {ERR_PACK(ERR_LIB_EVP, EVP_F_EVP_PKEY_METH_ADD0, 0), "EVP_PKEY_meth_add0"},
+    {ERR_PACK(ERR_LIB_EVP, EVP_F_EVP_PKEY_METH_NEW, 0), "EVP_PKEY_meth_new"},
     {ERR_PACK(ERR_LIB_EVP, EVP_F_EVP_PKEY_NEW, 0), "EVP_PKEY_new"},
     {ERR_PACK(ERR_LIB_EVP, EVP_F_EVP_PKEY_NEW_CMAC_KEY, 0),
      "EVP_PKEY_new_CMAC_key"},
@@ -212,6 +214,7 @@ static const ERR_STRING_DATA EVP_str_reasons[] = {
     "operaton not initialized"},
     {ERR_PACK(ERR_LIB_EVP, 0, EVP_R_PARTIALLY_OVERLAPPING),
     "partially overlapping buffers"},
+    {ERR_PACK(ERR_LIB_EVP, 0, EVP_R_PBKDF2_ERROR), "pbkdf2 error"},
     {ERR_PACK(ERR_LIB_EVP, 0, EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED),
     "pkey application asn1 method already registered"},
     {ERR_PACK(ERR_LIB_EVP, 0, EVP_R_PRIVATE_KEY_DECODE_ERROR),

crypto/evp/pbe_scrypt.c

@@ -170,8 +170,10 @@ int EVP_PBE_scrypt(const char *pass, size_t passlen,
     if (r == 0 || p == 0 || N < 2 || (N & (N - 1)))
         return 0;
     /* Check p * r < SCRYPT_PR_MAX avoiding overflow */
-    if (p > SCRYPT_PR_MAX / r)
+    if (p > SCRYPT_PR_MAX / r) {
+        EVPerr(EVP_F_EVP_PBE_SCRYPT, EVP_R_MEMORY_LIMIT_EXCEEDED);
         return 0;
+    }
 
     /*
      * Need to check N: if 2^(128 * r / 8) overflows limit this is
@@ -179,8 +181,10 @@ int EVP_PBE_scrypt(const char *pass, size_t passlen,
      */
 
     if (16 * r <= LOG2_UINT64_MAX) {
-        if (N >= (((uint64_t)1) << (16 * r)))
+        if (N >= (((uint64_t)1) << (16 * r))) {
+            EVPerr(EVP_F_EVP_PBE_SCRYPT, EVP_R_MEMORY_LIMIT_EXCEEDED);
             return 0;
+        }
     }
 
     /* Memory checks: check total allocated buffer size fits in uint64_t */
@@ -205,13 +209,17 @@ int EVP_PBE_scrypt(const char *pass, size_t passlen,
      * This is combined size V, X and T (section 4)
      */
     i = UINT64_MAX / (32 * sizeof(uint32_t));
-    if (N + 2 > i / r)
+    if (N + 2 > i / r) {
+        EVPerr(EVP_F_EVP_PBE_SCRYPT, EVP_R_MEMORY_LIMIT_EXCEEDED);
         return 0;
+    }
     Vlen = 32 * r * (N + 2) * sizeof(uint32_t);
 
     /* check total allocated size fits in uint64_t */
-    if (Blen > UINT64_MAX - Vlen)
+    if (Blen > UINT64_MAX - Vlen) {
+        EVPerr(EVP_F_EVP_PBE_SCRYPT, EVP_R_MEMORY_LIMIT_EXCEEDED);
         return 0;
+    }
 
     if (maxmem == 0)
         maxmem = SCRYPT_MAX_MEM;
@@ -230,8 +238,10 @@ int EVP_PBE_scrypt(const char *pass, size_t passlen,
         return 1;
 
     B = OPENSSL_malloc((size_t)(Blen + Vlen));
-    if (B == NULL)
+    if (B == NULL) {
+        EVPerr(EVP_F_EVP_PBE_SCRYPT, ERR_R_MALLOC_FAILURE);
         return 0;
+    }
     X = (uint32_t *)(B + Blen);
     T = X + 32 * r;
     V = T + 32 * r;
@@ -247,6 +257,9 @@ int EVP_PBE_scrypt(const char *pass, size_t passlen,
         goto err;
     rv = 1;
  err:
+    if (rv == 0)
+        EVPerr(EVP_F_EVP_PBE_SCRYPT, EVP_R_PBKDF2_ERROR);
+
     OPENSSL_clear_free(B, (size_t)(Blen + Vlen));
     return rv;
 }

crypto/evp/pmeth_lib.c

@@ -123,7 +123,6 @@ static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
      * If an ENGINE handled this method look it up. Otherwise use internal
      * tables.
      */
-
     if (e)
         pmeth = ENGINE_get_pkey_meth(e, id);
     else
@@ -169,8 +168,10 @@ EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
     EVP_PKEY_METHOD *pmeth;
 
     pmeth = OPENSSL_zalloc(sizeof(*pmeth));
-    if (pmeth == NULL)
+    if (pmeth == NULL) {
+        EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
         return NULL;
+    }
 
     pmeth->pkey_id = id;
     pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
@@ -258,8 +259,10 @@ EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *pctx)
     }
 #endif
     rctx = OPENSSL_malloc(sizeof(*rctx));
-    if (rctx == NULL)
+    if (rctx == NULL) {
+        EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
         return NULL;
+    }
 
     rctx->pmeth = pctx->pmeth;
 #ifndef OPENSSL_NO_ENGINE
@@ -293,11 +296,15 @@ int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
 {
     if (app_pkey_methods == NULL) {
         app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
-        if (app_pkey_methods == NULL)
+        if (app_pkey_methods == NULL){
+            EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
             return 0;
+        }
     }
-    if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth))
+    if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
+        EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
         return 0;
+    }
     sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
     return 1;
 }

crypto/kdf/kdf_err.c

 /*
  * Generated by util/mkerr.pl DO NOT EDIT
- * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2018 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
@@ -21,6 +21,9 @@ static const ERR_STRING_DATA KDF_str_functs[] = {
     {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_UINT64, 0),
      "pkey_scrypt_ctrl_uint64"},
     {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_DERIVE, 0), "pkey_scrypt_derive"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_INIT, 0), "pkey_scrypt_init"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_SET_MEMBUF, 0),
+     "pkey_scrypt_set_membuf"},
     {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_CTRL_STR, 0),
      "pkey_tls1_prf_ctrl_str"},
     {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_DERIVE, 0),

crypto/kdf/scrypt.c

@@ -58,8 +58,10 @@ static int pkey_scrypt_init(EVP_PKEY_CTX *ctx)
     SCRYPT_PKEY_CTX *kctx;
 
     kctx = OPENSSL_zalloc(sizeof(*kctx));
-    if (kctx == NULL)
+    if (kctx == NULL) {
+        KDFerr(KDF_F_PKEY_SCRYPT_INIT, ERR_R_MALLOC_FAILURE);
         return 0;
+    }
 
     /* Default values are the most conservative recommendation given in the
      * original paper of C. Percival. Derivation uses roughly 1 GiB of memory
@@ -102,8 +104,10 @@ static int pkey_scrypt_set_membuf(unsigned char **buffer, size_t *buflen,
     } else {
         *buffer = OPENSSL_malloc(1);
     }
-    if (*buffer == NULL)
+    if (*buffer == NULL) {
+        KDFerr(KDF_F_PKEY_SCRYPT_SET_MEMBUF, ERR_R_MALLOC_FAILURE);
         return 0;
+    }
 
     *buflen = new_buflen;
     return 1;

include/openssl/evperr.h

@@ -77,6 +77,8 @@ int ERR_load_EVP_strings(void);
 # define EVP_F_EVP_PKEY_GET0_SIPHASH                      172
 # define EVP_F_EVP_PKEY_KEYGEN                            146
 # define EVP_F_EVP_PKEY_KEYGEN_INIT                       147
+# define EVP_F_EVP_PKEY_METH_ADD0                         194
+# define EVP_F_EVP_PKEY_METH_NEW                          195
 # define EVP_F_EVP_PKEY_NEW                               106
 # define EVP_F_EVP_PKEY_NEW_CMAC_KEY                      193
 # define EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY               191
@@ -155,6 +157,7 @@ int ERR_load_EVP_strings(void);
 # define EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE   150
 # define EVP_R_OPERATON_NOT_INITIALIZED                   151
 # define EVP_R_PARTIALLY_OVERLAPPING                      162
+# define EVP_R_PBKDF2_ERROR                               181
 # define EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED 179
 # define EVP_R_PRIVATE_KEY_DECODE_ERROR                   145
 # define EVP_R_PRIVATE_KEY_ENCODE_ERROR                   146

include/openssl/kdferr.h

@@ -24,6 +24,8 @@ int ERR_load_KDF_strings(void);
 # define KDF_F_PKEY_SCRYPT_CTRL_STR                       104
 # define KDF_F_PKEY_SCRYPT_CTRL_UINT64                    105
 # define KDF_F_PKEY_SCRYPT_DERIVE                         109
+# define KDF_F_PKEY_SCRYPT_INIT                           106
+# define KDF_F_PKEY_SCRYPT_SET_MEMBUF                     107
 # define KDF_F_PKEY_TLS1_PRF_CTRL_STR                     100
 # define KDF_F_PKEY_TLS1_PRF_DERIVE                       101