summaryrefslogtreecommitdiff
path: root/src/or/config.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/or/config.c')
-rw-r--r--src/or/config.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/or/config.c b/src/or/config.c
index cb0abab613..02b3477eaf 100644
--- a/src/or/config.c
+++ b/src/or/config.c
@@ -3173,6 +3173,20 @@ options_validate(or_options_t *old_options, or_options_t *options,
"http://freehaven.net/anonbib/#hs-attack06 for details.");
}
+ if (routerset_is_list(options->EntryNodes) &&
+ (routerset_len(options->EntryNodes) == 1) &&
+ (options->RendConfigLines != NULL)) {
+ tor_asprintf(msg,
+ "You have one single EntryNodes and at least one hidden service "
+ "configured. This is bad because it's very easy to locate your "
+ "entry guard which can then lead to the deanonymization of your "
+ "hidden service -- for more details, see "
+ "https://trac.torproject.org/projects/tor/ticket/14917. "
+ "For this reason, the use of one EntryNodes with an hidden "
+ "service is prohibited until a better solution is found.");
+ return -1;
+ }
+
if (!options->LearnCircuitBuildTimeout && options->CircuitBuildTimeout &&
options->CircuitBuildTimeout < RECOMMENDED_MIN_CIRCUIT_BUILD_TIMEOUT) {
log_warn(LD_CONFIG,