Use OpenSSL libctx for various BIO readers (#19448)

This converts mostly PEM readers but also DER for CMS

ext/openssl/openssl.c

@@ -2749,7 +2749,7 @@ PHP_FUNCTION(openssl_pkcs7_read)
 		goto clean_exit;
 	}
 
-	p7 = PEM_read_bio_PKCS7(bio_in, NULL, NULL, NULL);
+	p7 = php_openssl_pem_read_bio_pkcs7(bio_in);
 	if (p7 == NULL) {
 		php_openssl_store_errors();
 		goto clean_exit;
@@ -3071,19 +3071,19 @@ PHP_FUNCTION(openssl_cms_verify)
 
 	switch (encoding) {
 		case ENCODING_PEM:
-			cms = PEM_read_bio_CMS(sigbio, NULL, 0, NULL);
-				datain = in;
-				break;
-			case ENCODING_DER:
-				cms = d2i_CMS_bio(sigbio, NULL);
-				datain = in;
-				break;
-			case ENCODING_SMIME:
-				cms = SMIME_read_CMS(sigbio, &datain);
-				break;
-			default:
-				php_error_docref(NULL, E_WARNING, "Unknown encoding");
-				goto clean_exit;
+			cms = php_openssl_pem_read_bio_cms(sigbio);
+			datain = in;
+			break;
+		case ENCODING_DER:
+			cms = php_openssl_d2i_bio_cms(sigbio);
+			datain = in;
+			break;
+		case ENCODING_SMIME:
+			cms = php_openssl_smime_read_cms(sigbio, &datain);
+			break;
+		default:
+			php_error_docref(NULL, E_WARNING, "Unknown encoding");
+			goto clean_exit;
 	}
 	if (cms == NULL) {
 		php_openssl_store_errors();
@@ -3398,7 +3398,7 @@ PHP_FUNCTION(openssl_cms_read)
 		goto clean_exit;
 	}
 
-	cms = PEM_read_bio_CMS(bio_in, NULL, NULL, NULL);
+	cms = php_openssl_pem_read_bio_cms(bio_in);
 	if (cms == NULL) {
 		php_openssl_store_errors();
 		goto clean_exit;
@@ -3703,13 +3703,13 @@ PHP_FUNCTION(openssl_cms_decrypt)
 
 	switch (encoding) {
 		case ENCODING_DER:
-			cms = d2i_CMS_bio(in, NULL);
+			cms = php_openssl_d2i_bio_cms(in);
 			break;
 		case ENCODING_PEM:
-                        cms = PEM_read_bio_CMS(in, NULL, 0, NULL);
+			cms = php_openssl_pem_read_bio_cms(in);
 			break;
 		case ENCODING_SMIME:
-			cms = SMIME_read_CMS(in, &datain);
+			cms = php_openssl_smime_read_cms(in, &datain);
 			break;
 		default:
 			zend_argument_value_error(5, "must be an OPENSSL_ENCODING_* constant");

ext/openssl/openssl_backend_common.c

@@ -541,18 +541,14 @@ X509 *php_openssl_x509_from_str(
 			php_openssl_store_errors();
 			return NULL;
 		}
-		cert = PEM_read_bio_X509(in, NULL, NULL, NULL);
+		cert = php_openssl_pem_read_bio_x509(in);
 	} else {
 		in = BIO_new_mem_buf(ZSTR_VAL(cert_str), (int) ZSTR_LEN(cert_str));
 		if (in == NULL) {
 			php_openssl_store_errors();
 			return NULL;
 		}
-#ifdef TYPEDEF_D2I_OF
-		cert = (X509 *) PEM_ASN1_read_bio((d2i_of_void *)d2i_X509, PEM_STRING_X509, in, NULL, NULL, NULL);
-#else
-		cert = (X509 *) PEM_ASN1_read_bio((char *(*)())d2i_X509, PEM_STRING_X509, in, NULL, NULL, NULL);
-#endif
+		cert = php_openssl_pem_read_asn1_bio_x509(in);
 	}
 
 	if (!BIO_free(in)) {
@@ -1127,7 +1123,7 @@ X509_REQ *php_openssl_csr_from_str(zend_string *csr_str, uint32_t arg_num)
 		return NULL;
 	}
 
-	csr = PEM_read_bio_X509_REQ(in, NULL,NULL,NULL);
+	csr = php_openssl_pem_read_bio_x509_req(in);
 	if (csr == NULL) {
 		php_openssl_store_errors();
 	}
@@ -1158,7 +1154,7 @@ EVP_PKEY *php_openssl_extract_public_key(EVP_PKEY *priv_key)
 		return NULL;
 	}
 
-	EVP_PKEY *pub_key = PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL);
+	EVP_PKEY *pub_key = php_openssl_pem_read_bio_public_key(bio);
 	BIO_free(bio);
 	return pub_key;
 }
@@ -1290,7 +1286,7 @@ EVP_PKEY *php_openssl_pkey_from_zval(
 					zend_string_release_ex(val_str, false);
 					TMP_CLEAN;
 				}
-				key = PEM_read_bio_PUBKEY(in, NULL,NULL, NULL);
+				key = php_openssl_pem_read_bio_public_key(in);
 				BIO_free(in);
 			}
 		} else {
@@ -1308,12 +1304,12 @@ EVP_PKEY *php_openssl_pkey_from_zval(
 				TMP_CLEAN;
 			}
 			if (passphrase == NULL) {
-				key = PEM_read_bio_PrivateKey(in, NULL, NULL, NULL);
+				key = php_openssl_pem_read_bio_private_key(in, NULL, NULL);
 			} else {
 				struct php_openssl_pem_password password;
 				password.key = passphrase;
 				password.len = passphrase_len;
-				key = PEM_read_bio_PrivateKey(in, NULL, php_openssl_pem_password_cb, &password);
+				key = php_openssl_pem_read_bio_private_key(in, php_openssl_pem_password_cb, &password);
 			}
 			BIO_free(in);
 		}

ext/openssl/openssl_backend_v1.c

@@ -692,4 +692,49 @@ CONF *php_openssl_nconf_new(void)
 	return NCONF_new(NULL);
 }
 
+X509 *php_openssl_pem_read_asn1_bio_x509(BIO *in)
+{
+	return PEM_ASN1_read_bio((d2i_of_void *)d2i_X509, PEM_STRING_X509, in, NULL, NULL, NULL);
+}
+
+X509 *php_openssl_pem_read_bio_x509(BIO *in)
+{
+	return PEM_read_bio_X509(in, NULL, NULL, NULL);
+}
+
+X509_REQ *php_openssl_pem_read_bio_x509_req(BIO *in)
+{
+	return PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
+}
+
+EVP_PKEY *php_openssl_pem_read_bio_public_key(BIO *in)
+{
+	return PEM_read_bio_PUBKEY(in, NULL, NULL, NULL);
+}
+
+EVP_PKEY *php_openssl_pem_read_bio_private_key(BIO *in, pem_password_cb *cb, void *u)
+{
+	return PEM_read_bio_PrivateKey(in, NULL, cb, u);
+}
+
+PKCS7 *php_openssl_pem_read_bio_pkcs7(BIO *in)
+{
+	return PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
+}
+
+CMS_ContentInfo *php_openssl_pem_read_bio_cms(BIO *in)
+{
+	return PEM_read_bio_CMS(in, NULL, NULL, NULL);
+}
+
+CMS_ContentInfo *php_openssl_d2i_bio_cms(BIO *in)
+{
+	return d2i_CMS_bio(in, NULL);
+}
+
+CMS_ContentInfo *php_openssl_smime_read_cms(BIO *bio, BIO **bcont)
+{
+	return SMIME_read_CMS(bio, bcont);
+}
+
 #endif

ext/openssl/openssl_backend_v3.c

@@ -843,4 +843,126 @@ CONF *php_openssl_nconf_new(void)
 	return NCONF_new_ex(PHP_OPENSSL_LIBCTX, NULL);
 }
 
+X509 *php_openssl_pem_read_asn1_bio_x509(BIO *in)
+{
+	X509 *x = X509_new_ex(PHP_OPENSSL_LIBCTX, PHP_OPENSSL_PROPQ);
+
+	if (x == NULL) {
+		return NULL;
+	}
+
+	if (PEM_ASN1_read_bio((d2i_of_void *)d2i_X509, PEM_STRING_X509, in, (void **) &x, NULL, NULL) == NULL) {
+		X509_free(x);
+		return NULL;
+	}
+
+	return x;
+}
+
+X509 *php_openssl_pem_read_bio_x509(BIO *in)
+{
+	X509 *x = X509_new_ex(PHP_OPENSSL_LIBCTX, PHP_OPENSSL_PROPQ);
+
+	if (x == NULL) {
+		return NULL;
+	}
+
+	if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) {
+		X509_free(x);
+		return NULL;
+	}
+
+	return x;
+}
+
+X509_REQ *php_openssl_pem_read_bio_x509_req(BIO *in)
+{
+	X509_REQ *xr = X509_REQ_new_ex(PHP_OPENSSL_LIBCTX, PHP_OPENSSL_PROPQ);
+
+	if (xr == NULL) {
+		return NULL;
+	}
+
+	if (PEM_read_bio_X509_REQ(in, &xr, NULL, NULL) == NULL) {
+		X509_REQ_free(xr);
+		return NULL;
+	}
+
+	return xr;
+}
+
+EVP_PKEY *php_openssl_pem_read_bio_public_key(BIO *in)
+{
+	return PEM_read_bio_PUBKEY_ex(in, NULL, NULL, NULL, PHP_OPENSSL_LIBCTX, PHP_OPENSSL_PROPQ);
+}
+
+EVP_PKEY *php_openssl_pem_read_bio_private_key(BIO *in, pem_password_cb *cb, void *u)
+{
+	return PEM_read_bio_PrivateKey_ex(in, NULL, cb, u, PHP_OPENSSL_LIBCTX, PHP_OPENSSL_PROPQ);
+}
+
+PKCS7 *php_openssl_pem_read_bio_pkcs7(BIO *in)
+{
+	PKCS7 *p = PKCS7_new_ex(PHP_OPENSSL_LIBCTX, PHP_OPENSSL_PROPQ);
+
+	if (p == NULL) {
+		return NULL;
+	}
+
+	if (PEM_read_bio_PKCS7(in, &p, NULL, NULL) == NULL) {
+		PKCS7_free(p);
+		return NULL;
+	}
+
+	return p;
+}
+
+CMS_ContentInfo *php_openssl_pem_read_bio_cms(BIO *in)
+{
+	CMS_ContentInfo *ci = CMS_ContentInfo_new_ex(PHP_OPENSSL_LIBCTX, PHP_OPENSSL_PROPQ);
+
+	if (ci == NULL) {
+		return NULL;
+	}
+
+	if (PEM_read_bio_CMS(in, &ci, NULL, NULL) == NULL) {
+		CMS_ContentInfo_free(ci);
+		return NULL;
+	}
+
+	return ci;
+}
+
+CMS_ContentInfo *php_openssl_d2i_bio_cms(BIO *in)
+{
+	CMS_ContentInfo *ci = CMS_ContentInfo_new_ex(PHP_OPENSSL_LIBCTX, PHP_OPENSSL_PROPQ);
+
+	if (ci == NULL) {
+		return NULL;
+	}
+
+	if (d2i_CMS_bio(in, &ci) == NULL) {
+		CMS_ContentInfo_free(ci);
+		return NULL;
+	}
+
+	return ci;
+}
+
+CMS_ContentInfo *php_openssl_smime_read_cms(BIO *bio, BIO **bcont)
+{
+	CMS_ContentInfo *ci = CMS_ContentInfo_new_ex(PHP_OPENSSL_LIBCTX, PHP_OPENSSL_PROPQ);
+
+	if (ci == NULL) {
+		return NULL;
+	}
+
+	if (SMIME_read_CMS_ex(bio, 0, bcont, &ci) == NULL) {
+		CMS_ContentInfo_free(ci);
+		return NULL;
+	}
+
+	return ci;
+}
+
 #endif

ext/openssl/php_openssl_backend.h

@@ -192,6 +192,16 @@ STACK_OF(X509) * php_openssl_load_all_certs_from_file(
 EVP_PKEY * php_openssl_generate_private_key(struct php_x509_request * req);
 zend_string *php_openssl_pkey_derive(EVP_PKEY *key, EVP_PKEY *peer_key, size_t requested_key_size);
 
+X509 *php_openssl_pem_read_asn1_bio_x509(BIO *in);
+X509 *php_openssl_pem_read_bio_x509(BIO *in);
+X509_REQ *php_openssl_pem_read_bio_x509_req(BIO *in);
+EVP_PKEY *php_openssl_pem_read_bio_public_key(BIO *in);
+EVP_PKEY *php_openssl_pem_read_bio_private_key(BIO *in, pem_password_cb *cb, void *u);
+PKCS7 *php_openssl_pem_read_bio_pkcs7(BIO *in);
+CMS_ContentInfo *php_openssl_pem_read_bio_cms(BIO *in);
+CMS_ContentInfo *php_openssl_d2i_bio_cms(BIO *in);
+CMS_ContentInfo *php_openssl_smime_read_cms(BIO *bio, BIO **bcont);
+
 #define PHP_SSL_REQ_INIT(req)		memset(req, 0, sizeof(*req))
 #define PHP_SSL_REQ_DISPOSE(req)	php_openssl_dispose_config(req)
 #define PHP_SSL_REQ_PARSE(req, zval)	php_openssl_parse_config(req, zval)

ext/openssl/xp_ssl.c

@@ -27,6 +27,7 @@
 #include "streams/php_streams_int.h"
 #include "zend_smart_str.h"
 #include "php_openssl.h"
+#include "php_openssl_backend.h"
 #include "php_network.h"
 #include <openssl/ssl.h>
 #include <openssl/rsa.h>
@@ -850,7 +851,7 @@ static long php_openssl_load_stream_cafile(X509_STORE *cert_store, const char *c
 	add_cert: {
 		BIO_puts(buffer, line);
 		efree(line);
-		cert = PEM_read_bio_X509(buffer, NULL, 0, NULL);
+		cert = php_openssl_pem_read_bio_x509(buffer);
 		BIO_free(buffer);
 		buffer_active = 0;
 		if (cert && X509_STORE_add_cert(cert_store, cert)) {