Add various 1.1.0 accessors.

This gets cURL building against both BoringSSL as it is and BoringSSL
with OPENSSL_VERSION_NUMBER set to 1.1.0.

BUG=91

Change-Id: I5be73b84df701fe76f3055b1239ae4704a931082
Reviewed-on: https://boringssl-review.googlesource.com/10180
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>

crypto/dh/dh.c

@@ -115,6 +115,29 @@ void DH_free(DH *dh) {
   OPENSSL_free(dh);
 }
 
+void DH_get0_key(const DH *dh, const BIGNUM **out_pub_key,
+                 const BIGNUM **out_priv_key) {
+  if (out_pub_key != NULL) {
+    *out_pub_key = dh->pub_key;
+  }
+  if (out_priv_key != NULL) {
+    *out_priv_key = dh->priv_key;
+  }
+}
+
+void DH_get0_pqg(const DH *dh, const BIGNUM **out_p, const BIGNUM **out_q,
+                 const BIGNUM **out_g) {
+  if (out_p != NULL) {
+    *out_p = dh->p;
+  }
+  if (out_q != NULL) {
+    *out_q = dh->q;
+  }
+  if (out_g != NULL) {
+    *out_g = dh->g;
+  }
+}
+
 int DH_generate_parameters_ex(DH *dh, int prime_bits, int generator, BN_GENCB *cb) {
   /* We generate DH parameters as follows
    * find a prime q which is prime_bits/2 bits long.

crypto/dsa/dsa.c

@@ -129,6 +129,29 @@ int DSA_up_ref(DSA *dsa) {
   return 1;
 }
 
+void DSA_get0_key(const DSA *dsa, const BIGNUM **out_pub_key,
+                  const BIGNUM **out_priv_key) {
+  if (out_pub_key != NULL) {
+    *out_pub_key = dsa->pub_key;
+  }
+  if (out_priv_key != NULL) {
+    *out_priv_key = dsa->priv_key;
+  }
+}
+
+void DSA_get0_pqg(const DSA *dsa, const BIGNUM **out_p, const BIGNUM **out_q,
+                  const BIGNUM **out_g) {
+  if (out_p != NULL) {
+    *out_p = dsa->p;
+  }
+  if (out_q != NULL) {
+    *out_q = dsa->q;
+  }
+  if (out_g != NULL) {
+    *out_g = dsa->g;
+  }
+}
+
 int DSA_generate_parameters_ex(DSA *dsa, unsigned bits, const uint8_t *seed_in,
                                size_t seed_len, int *out_counter,
                                unsigned long *out_h, BN_GENCB *cb) {

crypto/evp/evp.c

@@ -302,6 +302,8 @@ EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) {
   return ec_key;
 }
 
+DH *EVP_PKEY_get0_DH(EVP_PKEY *pkey) { return NULL; }
+
 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) {
   if (!EVP_PKEY_set_type(pkey, type)) {
     return 0;

crypto/rsa/rsa.c

@@ -169,6 +169,42 @@ int RSA_up_ref(RSA *rsa) {
   return 1;
 }
 
+void RSA_get0_key(const RSA *rsa, const BIGNUM **out_n, const BIGNUM **out_e,
+                  const BIGNUM **out_d) {
+  if (out_n != NULL) {
+    *out_n = rsa->n;
+  }
+  if (out_e != NULL) {
+    *out_e = rsa->e;
+  }
+  if (out_d != NULL) {
+    *out_d = rsa->d;
+  }
+}
+
+void RSA_get0_factors(const RSA *rsa, const BIGNUM **out_p,
+                      const BIGNUM **out_q) {
+  if (out_p != NULL) {
+    *out_p = rsa->p;
+  }
+  if (out_q != NULL) {
+    *out_q = rsa->q;
+  }
+}
+
+void RSA_get0_crt_params(const RSA *rsa, const BIGNUM **out_dmp1,
+                         const BIGNUM **out_dmq1, const BIGNUM **out_iqmp) {
+  if (out_dmp1 != NULL) {
+    *out_dmp1 = rsa->dmp1;
+  }
+  if (out_dmq1 != NULL) {
+    *out_dmq1 = rsa->dmq1;
+  }
+  if (out_iqmp != NULL) {
+    *out_iqmp = rsa->iqmp;
+  }
+}
+
 int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb) {
   if (rsa->meth->keygen) {
     return rsa->meth->keygen(rsa, bits, e_value, cb);

crypto/x509/x509_set.c

@@ -147,3 +147,8 @@ int X509_set_pubkey(X509 *x, EVP_PKEY *pkey)
         return (0);
     return (X509_PUBKEY_set(&(x->cert_info->key), pkey));
 }
+
+STACK_OF(X509_EXTENSION) *X509_get0_extensions(const X509 *x)
+{
+    return x->cert_info->extensions;
+}

include/openssl/dh.h

@@ -85,6 +85,20 @@ OPENSSL_EXPORT void DH_free(DH *dh);
 OPENSSL_EXPORT int DH_up_ref(DH *dh);
 
 
+/* Properties. */
+
+/* DH_get0_key sets |*out_pub_key| and |*out_priv_key|, if non-NULL, to |dh|'s
+ * public and private key, respectively. If |dh| is a public key, the private
+ * key will be set to NULL. */
+OPENSSL_EXPORT void DH_get0_key(const DH *dh, const BIGNUM **out_pub_key,
+                                const BIGNUM **out_priv_key);
+
+/* DH_get0_pqg sets |*out_p|, |*out_q|, and |*out_g|, if non-NULL, to |dh|'s p,
+ * q, and g parameters, respectively. */
+OPENSSL_EXPORT void DH_get0_pqg(const DH *dh, const BIGNUM **out_p,
+                                const BIGNUM **out_q, const BIGNUM **out_g);
+
+
 /* Standard parameters.
  *
  * These functions return new DH objects with standard parameters. They return

include/openssl/dsa.h

@@ -88,6 +88,20 @@ OPENSSL_EXPORT void DSA_free(DSA *dsa);
 OPENSSL_EXPORT int DSA_up_ref(DSA *dsa);
 
 
+/* Properties. */
+
+/* DSA_get0_key sets |*out_pub_key| and |*out_priv_key|, if non-NULL, to |dsa|'s
+ * public and private key, respectively. If |dsa| is a public key, the private
+ * key will be set to NULL. */
+OPENSSL_EXPORT void DSA_get0_key(const DSA *dsa, const BIGNUM **out_pub_key,
+                                 const BIGNUM **out_priv_key);
+
+/* DSA_get0_pqg sets |*out_p|, |*out_q|, and |*out_g|, if non-NULL, to |dsa|'s
+ * p, q, and g parameters, respectively. */
+OPENSSL_EXPORT void DSA_get0_pqg(const DSA *dsa, const BIGNUM **out_p,
+                                 const BIGNUM **out_q, const BIGNUM **out_g);
+
+
 /* Parameter generation. */
 
 /* DSA_generate_parameters_ex generates a set of DSA parameters by following

include/openssl/evp.h

@@ -721,6 +721,9 @@ OPENSSL_EXPORT EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **out,
 OPENSSL_EXPORT EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **out, const uint8_t **inp,
                                             long len);
 
+/* EVP_PKEY_get0_DH returns NULL. */
+OPENSSL_EXPORT DH *EVP_PKEY_get0_DH(EVP_PKEY *pkey);
+
 
 /* Private structures. */
 

include/openssl/rsa.h

@@ -87,6 +87,30 @@ OPENSSL_EXPORT void RSA_free(RSA *rsa);
 OPENSSL_EXPORT int RSA_up_ref(RSA *rsa);
 
 
+/* Properties. */
+
+/* RSA_get0_key sets |*out_n|, |*out_e|, and |*out_d|, if non-NULL, to |rsa|'s
+ * modulus, public exponent, and private exponent, respectively. If |rsa| is a
+ * public key, the private exponent will be set to NULL. */
+OPENSSL_EXPORT void RSA_get0_key(const RSA *rsa, const BIGNUM **out_n,
+                                 const BIGNUM **out_e, const BIGNUM **out_d);
+
+/* RSA_get0_factors sets |*out_p| and |*out_q|, if non-NULL, to |rsa|'s prime
+ * factors. If |rsa| is a public key, they will be set to NULL. If |rsa| is a
+ * multi-prime key, only the first two prime factors will be reported. */
+OPENSSL_EXPORT void RSA_get0_factors(const RSA *rsa, const BIGNUM **out_p,
+                                     const BIGNUM **out_q);
+
+/* RSA_get0_crt_params sets |*out_dmp1|, |*out_dmq1|, and |*out_iqmp|, if
+ * non-NULL, to |rsa|'s CRT parameters. These are d (mod p-1), d (mod q-1) and
+ * q^-1 (mod p), respectively. If |rsa| is a public key, each parameter will be
+ * set to NULL. If |rsa| is a multi-prime key, only the CRT parameters for the
+ * first two primes will be reported. */
+OPENSSL_EXPORT void RSA_get0_crt_params(const RSA *rsa, const BIGNUM **out_dmp1,
+                                        const BIGNUM **out_dmq1,
+                                        const BIGNUM **out_iqmp);
+
+
 /* Key generation. */
 
 /* RSA_generate_key_ex generates a new RSA key where the modulus has size

include/openssl/x509.h

@@ -858,6 +858,7 @@ OPENSSL_EXPORT int 		X509_set_pubkey(X509 *x, EVP_PKEY *pkey);
 OPENSSL_EXPORT EVP_PKEY *	X509_get_pubkey(X509 *x);
 OPENSSL_EXPORT ASN1_BIT_STRING * X509_get0_pubkey_bitstr(const X509 *x);
 OPENSSL_EXPORT int		X509_certificate_type(X509 *x,EVP_PKEY *pubkey /* optional */);
+OPENSSL_EXPORT STACK_OF(X509_EXTENSION) *X509_get0_extensions(const X509 *x);
 
 OPENSSL_EXPORT int		X509_REQ_set_version(X509_REQ *x,long version);
 OPENSSL_EXPORT int		X509_REQ_set_subject_name(X509_REQ *req,X509_NAME *name);