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--- stunnel-5.56/src/prototypes.h.default-tls-version 2020-04-06 11:22:24.480280384 +0200
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+++ stunnel-5.56/src/prototypes.h 2020-04-06 11:21:05.407597053 +0200
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@@ -897,6 +897,9 @@ ICON_IMAGE load_icon_default(ICON_TYPE);
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ICON_IMAGE load_icon_file(const char *);
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#endif
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+#define USE_DEFAULT_TLS_VERSION ((int)-2) /* Use defaults in OpenSSL
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+ crypto policies */
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+
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#endif /* defined PROTOTYPES_H */
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/* end of prototypes.h */
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--- stunnel-5.56/src/options.c.default-tls-version 2020-04-06 18:58:48.947214149 +0200
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+++ stunnel-5.56/src/options.c 2020-04-08 15:45:18.093520780 +0200
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@@ -3123,8 +3123,9 @@ NOEXPORT char *parse_service_option(CMD
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return "Invalid protocol version";
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return NULL; /* OK */
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case CMD_INITIALIZE:
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- if(section->max_proto_version && section->min_proto_version &&
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- section->max_proto_version<section->min_proto_version)
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+ if(section->max_proto_version != USE_DEFAULT_TLS_VERSION
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+ && section->min_proto_version != USE_DEFAULT_TLS_VERSION
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72fc89 |
+ && section->max_proto_version<section->min_proto_version)
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return "Invalid protocol version range";
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72fc89 |
break;
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case CMD_PRINT_DEFAULTS:
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@@ -3142,7 +3143,10 @@ NOEXPORT char *parse_service_option(CMD
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/* sslVersionMax */
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switch(cmd) {
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case CMD_SET_DEFAULTS:
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- section->max_proto_version=0; /* highest supported */
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+ section->max_proto_version=USE_DEFAULT_TLS_VERSION; /* use defaults in
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+ OpenSSL crypto
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+ policies.Do not
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+ override it */
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break;
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case CMD_SET_COPY:
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section->max_proto_version=new_service_options.max_proto_version;
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@@ -3173,7 +3177,10 @@ NOEXPORT char *parse_service_option(CMD
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72fc89 |
/* sslVersionMin */
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72fc89 |
switch(cmd) {
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case CMD_SET_DEFAULTS:
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- section->min_proto_version=TLS1_VERSION;
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+ section->min_proto_version=USE_DEFAULT_TLS_VERSION; /* use defaults in
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+ OpenSSL crypto
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72fc89 |
+ policies. Do not
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72fc89 |
+ override it */
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72fc89 |
break;
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case CMD_SET_COPY:
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72fc89 |
section->min_proto_version=new_service_options.min_proto_version;
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--- stunnel-5.56/src/ctx.c.default-tls-version 2019-10-24 10:48:11.000000000 +0200
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72fc89 |
+++ stunnel-5.56/src/ctx.c 2020-04-06 11:16:48.406406794 +0200
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72fc89 |
@@ -143,17 +143,29 @@ int context_init(SERVICE_OPTIONS *sectio
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72fc89 |
section->ctx=SSL_CTX_new(TLS_client_method());
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72fc89 |
else /* server mode */
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72fc89 |
section->ctx=SSL_CTX_new(TLS_server_method());
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72fc89 |
- if(!SSL_CTX_set_min_proto_version(section->ctx,
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72fc89 |
- section->min_proto_version)) {
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72fc89 |
- s_log(LOG_ERR, "Failed to set the minimum protocol version 0x%X",
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72fc89 |
- section->min_proto_version);
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72fc89 |
- return 1; /* FAILED */
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|
72fc89 |
+
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72fc89 |
+ if (section->min_proto_version == USE_DEFAULT_TLS_VERSION) {
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|
72fc89 |
+ s_log(LOG_INFO, "Using the default TLS version as specified in \
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|
72fc89 |
+ OpenSSL crypto policies. Not setting explicitly.");
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|
72fc89 |
+ } else {
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|
72fc89 |
+ if(!SSL_CTX_set_min_proto_version(section->ctx,
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72fc89 |
+ section->min_proto_version)) {
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72fc89 |
+ s_log(LOG_ERR, "Failed to set the minimum protocol version 0x%X",
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72fc89 |
+ section->min_proto_version);
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72fc89 |
+ return 1; /* FAILED */
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|
72fc89 |
+ }
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|
72fc89 |
}
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|
72fc89 |
- if(!SSL_CTX_set_max_proto_version(section->ctx,
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|
72fc89 |
- section->max_proto_version)) {
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|
72fc89 |
- s_log(LOG_ERR, "Failed to set the maximum protocol version 0x%X",
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72fc89 |
- section->max_proto_version);
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|
72fc89 |
- return 1; /* FAILED */
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|
72fc89 |
+
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|
72fc89 |
+ if (section->max_proto_version == USE_DEFAULT_TLS_VERSION) {
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|
|
72fc89 |
+ s_log(LOG_INFO, "Using the default TLS version as specified in \
|
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|
72fc89 |
+ OpenSSL crypto policies. Not setting explicitly");
|
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|
72fc89 |
+ } else {
|
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|
72fc89 |
+ if(!SSL_CTX_set_max_proto_version(section->ctx,
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|
72fc89 |
+ section->max_proto_version)) {
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|
72fc89 |
+ s_log(LOG_ERR, "Failed to set the maximum protocol version 0x%X",
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|
72fc89 |
+ section->max_proto_version);
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|
72fc89 |
+ return 1; /* FAILED */
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|
72fc89 |
+ }
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|
72fc89 |
}
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|
72fc89 |
#else /* OPENSSL_VERSION_NUMBER<0x10100000L */
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|
72fc89 |
if(section->option.client)
|