path: root/sys-power/nut/files/nut-openssl-1.1-support.patch

From da1f5aa699f54e0f6977ab64a3bc2f90a51c3104 Mon Sep 17 00:00:00 2001
From: Arjen de Korte <build+lede@de-korte.org>
Date: Mon, 27 Nov 2017 21:10:13 +0100
Subject: [PATCH 1/7] Add support for openssl-1.1.0

---
 clients/upsclient.c        | 4 ++++
 m4/nut_check_libopenssl.m4 | 5 +++--
 server/netssl.c            | 4 ++++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/clients/upsclient.c b/clients/upsclient.c
index b90587b00..fc5e7523c 100644
--- a/clients/upsclient.c
+++ b/clients/upsclient.c
@@ -316,7 +316,11 @@ int upscli_init(int certverify, const char *certpath,
 	
 #ifdef WITH_OPENSSL
 	
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	SSL_library_init();
+#else
+	OPENSSL_init_ssl(0, NULL);
+#endif
 	SSL_load_error_strings();
 
 	ssl_method = TLSv1_client_method();
diff --git a/m4/nut_check_libopenssl.m4 b/m4/nut_check_libopenssl.m4
index 1b875077b..5f29f4a38 100644
--- a/m4/nut_check_libopenssl.m4
+++ b/m4/nut_check_libopenssl.m4
@@ -57,8 +57,9 @@ if test -z "${nut_have_libopenssl_seen}"; then
 	AC_MSG_RESULT([${LIBS}])
 
 	dnl check if openssl is usable
-	AC_CHECK_HEADERS(openssl/ssl.h, [nut_have_openssl=yes], [nut_have_openssl=no], [AC_INCLUDES_DEFAULT])
-	AC_CHECK_FUNCS(SSL_library_init, [], [nut_have_openssl=no])
+	AC_CHECK_FUNCS(OPENSSL_init_ssl, [nut_have_openssl=yes], [nut_have_openssl=no])
+	AC_CHECK_FUNCS(SSL_library_init, [nut_have_openssl=yes], [])
+	AC_CHECK_HEADERS(openssl/ssl.h, [], [nut_have_openssl=no], [AC_INCLUDES_DEFAULT])
 
 	if test "${nut_have_openssl}" = "yes"; then
 		nut_with_ssl="yes"
diff --git a/server/netssl.c b/server/netssl.c
index c2f409899..0f9a70acf 100644
--- a/server/netssl.c
+++ b/server/netssl.c
@@ -388,7 +388,11 @@ void ssl_init(void)
 #ifdef WITH_OPENSSL
 
 	SSL_load_error_strings();
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	SSL_library_init();
+#else
+	OPENSSL_init_ssl(0, NULL);
+#endif
 
 	if ((ssl_method = TLSv1_server_method()) == NULL) {
 		ssl_debug();

From b15656efb2575647ca0e0b6439b6380373767b8f Mon Sep 17 00:00:00 2001
From: Arjen de Korte <build+lede@de-korte.org>
Date: Tue, 28 Nov 2017 20:00:52 +0100
Subject: [PATCH 2/7] Allow TLSv1 and higher (not just TLSv1)

---
 clients/upsclient.c | 30 +++++++++++++++++-------------
 server/netssl.c     | 26 +++++++++++++++-----------
 2 files changed, 32 insertions(+), 24 deletions(-)

diff --git a/clients/upsclient.c b/clients/upsclient.c
index fc5e7523c..bd951e854 100644
--- a/clients/upsclient.c
+++ b/clients/upsclient.c
@@ -299,11 +299,6 @@ int upscli_init(int certverify, const char *certpath,
 {
 #ifdef WITH_OPENSSL
 	int ret, ssl_mode = SSL_VERIFY_NONE;
-#if OPENSSL_VERSION_NUMBER >= 0x10000000L
-	const SSL_METHOD	*ssl_method;
-#else
-	SSL_METHOD	*ssl_method;
-#endif
 #elif defined(WITH_NSS) /* WITH_OPENSSL */
 	SECStatus	status;
 #endif /* WITH_OPENSSL | WITH_NSS */
@@ -315,26 +310,35 @@ int upscli_init(int certverify, const char *certpath,
 	}
 	
 #ifdef WITH_OPENSSL
+
+	SSL_load_error_strings();
 	
 #if OPENSSL_VERSION_NUMBER < 0x10100000L
 	SSL_library_init();
+
+	ssl_ctx = SSL_CTX_new(SSLv23_client_method());
 #else
 	OPENSSL_init_ssl(0, NULL);
-#endif
-	SSL_load_error_strings();
 
-	ssl_method = TLSv1_client_method();
-
-	if (!ssl_method) {
-		return 0;
-	}
+	ssl_ctx = SSL_CTX_new(TLS_client_method());
+#endif
 
-	ssl_ctx = SSL_CTX_new(ssl_method);
 	if (!ssl_ctx) {
 		upslogx(LOG_ERR, "Can not initialize SSL context");
 		return -1;
 	}
 	
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+	/* set minimum protocol TLSv1 */
+	SSL_CTX_set_options(ssl_ctx, SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3);
+#else
+	ret = SSL_CTX_set_min_proto_version(ssl_ctx, TLS1_VERSION);
+	if (ret != 1) {
+		upslogx(LOG_ERR, "Can not set minimum protocol to TLSv1");
+		return -1;
+	}
+#endif
+
 	if (!certpath) {
 		if (certverify == 1) {
 			upslogx(LOG_ERR, "Can not verify certificate if any is specified");
diff --git a/server/netssl.c b/server/netssl.c
index 0f9a70acf..98680d25e 100644
--- a/server/netssl.c
+++ b/server/netssl.c
@@ -371,13 +371,7 @@ void ssl_init(void)
 {
 #ifdef WITH_NSS
 	SECStatus status;
-#elif defined(WITH_OPENSSL)
-#if OPENSSL_VERSION_NUMBER >= 0x10000000L
-	const SSL_METHOD	*ssl_method;
-#else
-	SSL_METHOD	*ssl_method;
-#endif
-#endif /* WITH_NSS|WITH_OPENSSL */
+#endif /* WITH_NSS */
 
 	if (!certfile) {
 		return;
@@ -388,21 +382,31 @@ void ssl_init(void)
 #ifdef WITH_OPENSSL
 
 	SSL_load_error_strings();
+
 #if OPENSSL_VERSION_NUMBER < 0x10100000L
 	SSL_library_init();
+
+	ssl_ctx = SSL_CTX_new(SSLv23_server_method());
 #else
 	OPENSSL_init_ssl(0, NULL);
+
+	ssl_ctx = SSL_CTX_new(TLS_server_method());
 #endif
 
-	if ((ssl_method = TLSv1_server_method()) == NULL) {
+	if (!ssl_ctx) {
 		ssl_debug();
-		fatalx(EXIT_FAILURE, "TLSv1_server_method failed");
+		fatalx(EXIT_FAILURE, "SSL_CTX_new failed");
 	}
 
-	if ((ssl_ctx = SSL_CTX_new(ssl_method)) == NULL) {
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
+	/* set minimum protocol TLSv1 */
+	SSL_CTX_set_options(ssl_ctx, SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3);
+#else
+	if (SSL_CTX_set_min_proto_version(ssl_ctx, TLS1_VERSION) != 1) {
 		ssl_debug();
-		fatalx(EXIT_FAILURE, "SSL_CTX_new failed");
+		fatalx(EXIT_FAILURE, "SSL_CTX_set_min_proto_version(TLS1_VERSION)");
 	}
+#endif
 
 	if (SSL_CTX_use_certificate_chain_file(ssl_ctx, certfile) != 1) {
 		ssl_debug();

From 5a8308aef9884017754fb70620c8ded34fa44290 Mon Sep 17 00:00:00 2001
From: Arjen de Korte <build+lede@de-korte.org>
Date: Tue, 28 Nov 2017 22:01:41 +0100
Subject: [PATCH 3/7] Fix check for empty string

---
 clients/upssched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clients/upssched.c b/clients/upssched.c
index 97b3ed42d..3fdf118ed 100644
--- a/clients/upssched.c
+++ b/clients/upssched.c
@@ -794,7 +794,7 @@ static void parse_at(const char *ntype, const char *un, const char *cmd,
 	}
 
 	if (!strcmp(cmd, "EXECUTE")) {
-		if (ca1 == '\0') {
+		if (ca1[0] == '\0') {
 			upslogx(LOG_ERR, "Empty EXECUTE command argument");
 			return;
 		}

From 5ecfb0ffe3d89a5116dd287ff2c3f60de67ecbb9 Mon Sep 17 00:00:00 2001
From: Arjen de Korte <build+github@de-korte.org>
Date: Fri, 1 Dec 2017 12:24:00 +0100
Subject: [PATCH 4/7] Report TLS handshake in debug mode

---
 clients/upsclient.c | 2 +-
 server/netssl.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/clients/upsclient.c b/clients/upsclient.c
index bd951e854..b7dd8f424 100644
--- a/clients/upsclient.c
+++ b/clients/upsclient.c
@@ -745,7 +745,7 @@ static int upscli_sslinit(UPSCONN_t *ups, int verifycert)
 	switch(res)
 	{
 	case 1:
-		upsdebugx(3, "SSL connected");
+		upsdebugx(3, "SSL connected (%s)", SSL_get_version(ups->ssl));
 		break;
 	case 0:
 		upslog_with_errno(1, "SSL_connect do not accept handshake.");
diff --git a/server/netssl.c b/server/netssl.c
index 98680d25e..6ae13e8d3 100644
--- a/server/netssl.c
+++ b/server/netssl.c
@@ -275,7 +275,7 @@ void net_starttls(nut_ctype_t *client, int numarg, const char **arg)
 	{
 	case 1:
 		client->ssl_connected = 1;
-		upsdebugx(3, "SSL connected");
+		upsdebugx(3, "SSL connected (%s)", SSL_get_version(client->ssl));
 		break;
 		
 	case 0:

From ab0c8b41c0530d3706e4997257939026cfd29ccc Mon Sep 17 00:00:00 2001
From: Arjen de Korte <build+github@de-korte.org>
Date: Sun, 24 Feb 2019 18:31:21 +0100
Subject: [PATCH 5/7] Update nut_check_libopenssl.m4

---
 m4/nut_check_libopenssl.m4 | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/m4/nut_check_libopenssl.m4 b/m4/nut_check_libopenssl.m4
index 5f29f4a38..7eb401cd9 100644
--- a/m4/nut_check_libopenssl.m4
+++ b/m4/nut_check_libopenssl.m4
@@ -57,9 +57,8 @@ if test -z "${nut_have_libopenssl_seen}"; then
 	AC_MSG_RESULT([${LIBS}])
 
 	dnl check if openssl is usable
-	AC_CHECK_FUNCS(OPENSSL_init_ssl, [nut_have_openssl=yes], [nut_have_openssl=no])
-	AC_CHECK_FUNCS(SSL_library_init, [nut_have_openssl=yes], [])
-	AC_CHECK_HEADERS(openssl/ssl.h, [], [nut_have_openssl=no], [AC_INCLUDES_DEFAULT])
+	AC_CHECK_HEADERS(openssl/ssl.h, [nut_have_openssl=yes], [nut_have_openssl=no], [AC_INCLUDES_DEFAULT])
+	AC_CHECK_FUNCS(SSL_CTX_new, [], [nut_have_openssl=no])
 
 	if test "${nut_have_openssl}" = "yes"; then
 		nut_with_ssl="yes"

From 1dc34a5da7308f0f85537a6761fefb3ff3098863 Mon Sep 17 00:00:00 2001
From: Arjen de Korte <build+github@de-korte.org>
Date: Sun, 24 Feb 2019 18:34:53 +0100
Subject: [PATCH 6/7] Update upsclient.c

---
 clients/upsclient.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/clients/upsclient.c b/clients/upsclient.c
index b7dd8f424..541664f36 100644
--- a/clients/upsclient.c
+++ b/clients/upsclient.c
@@ -311,15 +311,12 @@ int upscli_init(int certverify, const char *certpath,
 	
 #ifdef WITH_OPENSSL
 
-	SSL_load_error_strings();
-	
 #if OPENSSL_VERSION_NUMBER < 0x10100000L
+	SSL_load_error_strings();
 	SSL_library_init();
 
 	ssl_ctx = SSL_CTX_new(SSLv23_client_method());
 #else
-	OPENSSL_init_ssl(0, NULL);
-
 	ssl_ctx = SSL_CTX_new(TLS_client_method());
 #endif
 

From 108c31c9b170da2ee34a25fd373d21837d4d10a3 Mon Sep 17 00:00:00 2001
From: Arjen de Korte <build+github@de-korte.org>
Date: Sun, 24 Feb 2019 18:37:42 +0100
Subject: [PATCH 7/7] Update netssl.c

---
 server/netssl.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/server/netssl.c b/server/netssl.c
index 6ae13e8d3..cf9419edf 100644
--- a/server/netssl.c
+++ b/server/netssl.c
@@ -381,15 +381,12 @@ void ssl_init(void)
 
 #ifdef WITH_OPENSSL
 
-	SSL_load_error_strings();
-
 #if OPENSSL_VERSION_NUMBER < 0x10100000L
+	SSL_load_error_strings();
 	SSL_library_init();
 
 	ssl_ctx = SSL_CTX_new(SSLv23_server_method());
 #else
-	OPENSSL_init_ssl(0, NULL);
-
 	ssl_ctx = SSL_CTX_new(TLS_server_method());
 #endif