CRYPTO: Remove support for ex_data fields when building the FIPS module

These fields are purely application data, and applications don't reach
into the bowels of the FIPS module, so these fields are never used
there.

Fixes #10835

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10837)

9 files changed, 30 insertions, 9 deletions

diff --git a/crypto/dh/dh_lib.c b/crypto/dh/dh_lib.c
index 670ba1f7fc..65c2154c26 100644
--- a/crypto/dh/dh_lib.c
+++ b/crypto/dh/dh_lib.c
@@ -78,8 +78,10 @@ DH *DH_new_method(ENGINE *engine)
 
     ret->flags = ret->meth->flags;
 
+#ifndef FIPS_MODE
     if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_DH, ret, &ret->ex_data))
         goto err;
+#endif
 
     if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
         DHerr(DH_F_DH_NEW_METHOD, ERR_R_INIT_FAIL);
@@ -112,7 +114,9 @@ void DH_free(DH *r)
     ENGINE_finish(r->engine);
 #endif
 
+#ifndef FIPS_MODE
     CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DH, r, &r->ex_data);
+#endif
 
     CRYPTO_THREAD_lock_free(r->lock);
 
@@ -139,6 +143,7 @@ int DH_up_ref(DH *r)
     return ((i > 1) ? 1 : 0);
 }
 
+#ifndef FIPS_MODE
 int DH_set_ex_data(DH *d, int idx, void *arg)
 {
     return CRYPTO_set_ex_data(&d->ex_data, idx, arg);
@@ -148,6 +153,7 @@ void *DH_get_ex_data(DH *d, int idx)
 {
     return CRYPTO_get_ex_data(&d->ex_data, idx);
 }
+#endif
 
 int DH_bits(const DH *dh)
 {
diff --git a/crypto/dh/dh_local.h b/crypto/dh/dh_local.h
index a9041e9462..378cf5c957 100644
--- a/crypto/dh/dh_local.h
+++ b/crypto/dh/dh_local.h
@@ -33,7 +33,9 @@ struct dh_st {
     int seedlen;
     BIGNUM *counter;
     CRYPTO_REF_COUNT references;
+#ifndef FIPS_MODE
     CRYPTO_EX_DATA ex_data;
+#endif
     const DH_METHOD *meth;
     ENGINE *engine;
     CRYPTO_RWLOCK *lock;
diff --git a/crypto/dsa/dsa_lib.c b/crypto/dsa/dsa_lib.c
index 2a97c0852c..10e88c16bf 100644
--- a/crypto/dsa/dsa_lib.c
+++ b/crypto/dsa/dsa_lib.c
@@ -19,11 +19,6 @@
 
 #ifndef FIPS_MODE
 
-DSA *DSA_new(void)
-{
-    return DSA_new_method(NULL);
-}
-
 int DSA_set_ex_data(DSA *d, int idx, void *arg)
 {
     return CRYPTO_set_ex_data(&d->ex_data, idx, arg);
@@ -215,8 +210,10 @@ static DSA *dsa_new_method(OPENSSL_CTX *libctx, ENGINE *engine)
 
     ret->flags = ret->meth->flags & ~DSA_FLAG_NON_FIPS_ALLOW;
 
+#ifndef FIPS_MODE
     if (!crypto_new_ex_data_ex(libctx, CRYPTO_EX_INDEX_DSA, ret, &ret->ex_data))
         goto err;
+#endif
 
     if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
         DSAerr(DSA_F_DSA_NEW_METHOD, ERR_R_INIT_FAIL);
@@ -235,9 +232,9 @@ DSA *DSA_new_method(ENGINE *engine)
     return dsa_new_method(NULL, engine);
 }
 
-DSA *dsa_new(OPENSSL_CTX *libctx)
+DSA *DSA_new(void)
 {
-    return dsa_new_method(libctx, NULL);
+    return DSA_new_method(NULL);
 }
 
 void DSA_free(DSA *r)
@@ -259,7 +256,9 @@ void DSA_free(DSA *r)
     ENGINE_finish(r->engine);
 #endif
 
+#ifndef FIPS_MODE
     CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DSA, r, &r->ex_data);
+#endif
 
     CRYPTO_THREAD_lock_free(r->lock);
 
diff --git a/crypto/dsa/dsa_local.h b/crypto/dsa/dsa_local.h
index 13a3007ff0..f0ec73410b 100644
--- a/crypto/dsa/dsa_local.h
+++ b/crypto/dsa/dsa_local.h
@@ -26,7 +26,9 @@ struct dsa_st {
     /* Normally used to cache montgomery values */
     BN_MONT_CTX *method_mont_p;
     CRYPTO_REF_COUNT references;
+#ifndef FIPS_MODE
     CRYPTO_EX_DATA ex_data;
+#endif
     const DSA_METHOD *meth;
     /* functional reference if 'meth' is ENGINE-provided */
     ENGINE *engine;
diff --git a/crypto/rand/drbg_lib.c b/crypto/rand/drbg_lib.c
index 52e6743230..2c9ed3fb6d 100644
--- a/crypto/rand/drbg_lib.c
+++ b/crypto/rand/drbg_lib.c
@@ -503,7 +503,9 @@ void RAND_DRBG_free(RAND_DRBG *drbg)
         drbg->meth->uninstantiate(drbg);
     rand_pool_free(drbg->adin_pool);
     CRYPTO_THREAD_lock_free(drbg->lock);
+#ifndef FIPS_MODE
     CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RAND_DRBG, drbg, &drbg->ex_data);
+#endif
 
     if (drbg->secure)
         OPENSSL_secure_clear_free(drbg, sizeof(*drbg));
@@ -1098,6 +1100,7 @@ int rand_drbg_enable_locking(RAND_DRBG *drbg)
     return 1;
 }
 
+#ifndef FIPS_MODE
 /*
  * Get and set the EXDATA
  */
@@ -1110,7 +1113,7 @@ void *RAND_DRBG_get_ex_data(const RAND_DRBG *drbg, int idx)
 {
     return CRYPTO_get_ex_data(&drbg->ex_data, idx);
 }
-
+#endif
 
 /*
  * The following functions provide a RAND_METHOD that works on the
diff --git a/crypto/rand/rand_local.h b/crypto/rand/rand_local.h
index 7817df80d0..310f03fc17 100644
--- a/crypto/rand/rand_local.h
+++ b/crypto/rand/rand_local.h
@@ -308,8 +308,10 @@ struct rand_drbg_st {
     size_t seedlen;
     DRBG_STATUS state;
 
+#ifndef FIPS_MODE
     /* Application data, mainly used in the KATs. */
     CRYPTO_EX_DATA ex_data;
+#endif
 
     /* Implementation specific data */
     union {
diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c
index bf47540b45..f538f72d14 100644
--- a/crypto/rsa/rsa_lib.c
+++ b/crypto/rsa/rsa_lib.c
@@ -88,9 +88,11 @@ RSA *RSA_new_method(ENGINE *engine)
 #endif
 
     ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
+#ifndef FIPS_MODE
     if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) {
         goto err;
     }
+#endif
 
     if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
         RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_INIT_FAIL);
@@ -123,7 +125,9 @@ void RSA_free(RSA *r)
     ENGINE_finish(r->engine);
 #endif
 
+#ifndef FIPS_MODE
     CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);
+#endif
 
     CRYPTO_THREAD_lock_free(r->lock);
 
@@ -155,6 +159,7 @@ int RSA_up_ref(RSA *r)
     return i > 1 ? 1 : 0;
 }
 
+#ifndef FIPS_MODE
 int RSA_set_ex_data(RSA *r, int idx, void *arg)
 {
     return CRYPTO_set_ex_data(&r->ex_data, idx, arg);
@@ -164,6 +169,7 @@ void *RSA_get_ex_data(const RSA *r, int idx)
 {
     return CRYPTO_get_ex_data(&r->ex_data, idx);
 }
+#endif
 
 /*
  * Define a scaling constant for our fixed point arithmetic.
diff --git a/crypto/rsa/rsa_local.h b/crypto/rsa/rsa_local.h
index ae71567f7a..9b55115e47 100644
--- a/crypto/rsa/rsa_local.h
+++ b/crypto/rsa/rsa_local.h
@@ -50,8 +50,10 @@ struct rsa_st {
     STACK_OF(RSA_PRIME_INFO) *prime_infos;
     /* If a PSS only key this contains the parameter restrictions */
     RSA_PSS_PARAMS *pss;
+#ifndef FIPS_MODE
     /* be careful using this if the RSA structure is shared */
     CRYPTO_EX_DATA ex_data;
+#endif
     CRYPTO_REF_COUNT references;
     int flags;
     /* Used to cache montgomery values */
diff --git a/include/crypto/dsa.h b/include/crypto/dsa.h
index efd4acf6fc..9afae37d2a 100644
--- a/include/crypto/dsa.h
+++ b/include/crypto/dsa.h
@@ -9,6 +9,5 @@
 
 #include <openssl/dsa.h>
 
-DSA *dsa_new(OPENSSL_CTX *libctx);
 int dsa_sign_int(OPENSSL_CTX *libctx, int type, const unsigned char *dgst,
                  int dlen, unsigned char *sig, unsigned int *siglen, DSA *dsa);