stunnel/stunnel-5.61-default-tls-ve...

96 lines
4.7 KiB
Diff

diff -up stunnel-5.61/src/ctx.c.default-tls-version stunnel-5.61/src/ctx.c
--- stunnel-5.61/src/ctx.c.default-tls-version 2021-12-13 09:43:22.000000000 +0100
+++ stunnel-5.61/src/ctx.c 2022-01-10 19:27:49.913243127 +0100
@@ -149,18 +149,28 @@ int context_init(SERVICE_OPTIONS *sectio
section->ctx=SSL_CTX_new(section->option.client ?
TLS_client_method() : TLS_server_method());
#endif /* OPENSSL_VERSION_NUMBER>=0x30000000L */
- if(!SSL_CTX_set_min_proto_version(section->ctx,
- section->min_proto_version)) {
- s_log(LOG_ERR, "Failed to set the minimum protocol version 0x%X",
- section->min_proto_version);
- return 1; /* FAILED */
- }
- if(!SSL_CTX_set_max_proto_version(section->ctx,
- section->max_proto_version)) {
- s_log(LOG_ERR, "Failed to set the maximum protocol version 0x%X",
- section->max_proto_version);
- return 1; /* FAILED */
+ if (section->min_proto_version == USE_DEFAULT_TLS_VERSION) {
+ s_log(LOG_INFO, "Using the default TLS version as specified in "
+ "OpenSSL crypto policies. Not setting explicitly.");
+ } else {
+ if(!SSL_CTX_set_min_proto_version(section->ctx,
+ section->min_proto_version)) {
+ s_log(LOG_ERR, "Failed to set the minimum protocol version 0x%X",
+ section->min_proto_version);
+ return 1; /* FAILED */
+ }
}
+ if (section->max_proto_version == USE_DEFAULT_TLS_VERSION) {
+ s_log(LOG_INFO, "Using the default TLS version as specified in "
+ "OpenSSL crypto policies. Not setting explicitly");
+ } else {
+ if(!SSL_CTX_set_max_proto_version(section->ctx,
+ section->max_proto_version)) {
+ s_log(LOG_ERR, "Failed to set the maximum protocol version 0x%X",
+ section->max_proto_version);
+ return 1; /* FAILED */
+ }
+ }
#else /* OPENSSL_VERSION_NUMBER<0x10100000L */
if(section->option.client)
section->ctx=SSL_CTX_new(section->client_method);
diff -up stunnel-5.61/src/options.c.default-tls-version stunnel-5.61/src/options.c
--- stunnel-5.61/src/options.c.default-tls-version 2022-01-10 19:23:15.096254067 +0100
+++ stunnel-5.61/src/options.c 2022-01-10 19:23:15.098254103 +0100
@@ -3297,8 +3297,9 @@ NOEXPORT char *parse_service_option(CMD
return "Invalid protocol version";
return NULL; /* OK */
case CMD_INITIALIZE:
- if(section->max_proto_version && section->min_proto_version &&
- section->max_proto_version<section->min_proto_version)
+ if(section->max_proto_version != USE_DEFAULT_TLS_VERSION
+ && section->min_proto_version != USE_DEFAULT_TLS_VERSION
+ && section->max_proto_version<section->min_proto_version)
return "Invalid protocol version range";
break;
case CMD_PRINT_DEFAULTS:
@@ -3316,7 +3317,10 @@ NOEXPORT char *parse_service_option(CMD
/* sslVersionMax */
switch(cmd) {
case CMD_SET_DEFAULTS:
- section->max_proto_version=0; /* highest supported */
+ section->max_proto_version=USE_DEFAULT_TLS_VERSION; /* use defaults in
+ OpenSSL crypto
+ policies.Do not
+ override it */
break;
case CMD_SET_COPY:
section->max_proto_version=new_service_options.max_proto_version;
@@ -3347,7 +3351,10 @@ NOEXPORT char *parse_service_option(CMD
/* sslVersionMin */
switch(cmd) {
case CMD_SET_DEFAULTS:
- section->min_proto_version=TLS1_VERSION;
+ section->min_proto_version=USE_DEFAULT_TLS_VERSION; /* use defaults in
+ OpenSSL crypto
+ policies. Do not
+ override it */
break;
case CMD_SET_COPY:
section->min_proto_version=new_service_options.min_proto_version;
diff -up stunnel-5.61/src/prototypes.h.default-tls-version stunnel-5.61/src/prototypes.h
--- stunnel-5.61/src/prototypes.h.default-tls-version 2021-12-13 09:43:22.000000000 +0100
+++ stunnel-5.61/src/prototypes.h 2022-01-10 19:23:15.099254121 +0100
@@ -932,6 +932,9 @@ ICON_IMAGE load_icon_default(ICON_TYPE);
ICON_IMAGE load_icon_file(const char *);
#endif
+#define USE_DEFAULT_TLS_VERSION ((int)-2) /* Use defaults in OpenSSL
+ crypto policies */
+
#endif /* defined PROTOTYPES_H */
/* end of prototypes.h */