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[tor-commits] [tor/master] test: Unit tests HS DoS torrc options



commit cbe5f9571f006a919a16b437c3e13ad5f6c7bf98
Author: David Goulet <dgoulet@xxxxxxxxxxxxxx>
Date:   Tue Aug 20 09:51:30 2019 -0400

    test: Unit tests HS DoS torrc options
    
    Signed-off-by: David Goulet <dgoulet@xxxxxxxxxxxxxx>
---
 src/test/test_hs_config.c | 109 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)

diff --git a/src/test/test_hs_config.c b/src/test/test_hs_config.c
index c2c556307..2b3afbb6e 100644
--- a/src/test/test_hs_config.c
+++ b/src/test/test_hs_config.c
@@ -489,6 +489,111 @@ test_staging_service_v3(void *arg)
   hs_free_all();
 }
 
+static void
+test_dos_parameters(void *arg)
+{
+  int ret;
+
+  (void) arg;
+
+  hs_init();
+
+  /* Valid configuration. */
+  {
+    const char *conf =
+      "HiddenServiceDir /tmp/tor-test-hs-RANDOM/hs3\n"
+      "HiddenServiceVersion 3\n"
+      "HiddenServicePort 22 1.1.1.1:22\n"
+      "HiddenServiceEnableIntroDoSDefense 1\n"
+      "HiddenServiceEnableIntroDoSRatePerSec 42\n"
+      "HiddenServiceEnableIntroDoSBurstPerSec 87\n";
+
+    setup_full_capture_of_logs(LOG_INFO);
+    ret = helper_config_service(conf, 0);
+    tt_int_op(ret, OP_EQ, 0);
+    expect_log_msg_containing("Service INTRO2 DoS defenses rate set to: 42");
+    expect_log_msg_containing("Service INTRO2 DoS defenses burst set to: 87");
+    teardown_capture_of_logs();
+  }
+
+  /* Invalid rate. Value of 2^37. Max allowed is 2^31. */
+  {
+    const char *conf =
+      "HiddenServiceDir /tmp/tor-test-hs-RANDOM/hs3\n"
+      "HiddenServiceVersion 3\n"
+      "HiddenServicePort 22 1.1.1.1:22\n"
+      "HiddenServiceEnableIntroDoSDefense 1\n"
+      "HiddenServiceEnableIntroDoSRatePerSec 137438953472\n"
+      "HiddenServiceEnableIntroDoSBurstPerSec 87\n";
+
+    setup_full_capture_of_logs(LOG_WARN);
+    ret = helper_config_service(conf, 0);
+    tt_int_op(ret, OP_EQ, -1);
+    expect_log_msg_containing("HiddenServiceEnableIntroDoSRatePerSec must "
+                              "be between 0 and 2147483647, "
+                              "not 137438953472");
+    teardown_capture_of_logs();
+  }
+
+  /* Invalid burst. Value of 2^38. Max allowed is 2^31. */
+  {
+    const char *conf =
+      "HiddenServiceDir /tmp/tor-test-hs-RANDOM/hs3\n"
+      "HiddenServiceVersion 3\n"
+      "HiddenServicePort 22 1.1.1.1:22\n"
+      "HiddenServiceEnableIntroDoSDefense 1\n"
+      "HiddenServiceEnableIntroDoSRatePerSec 42\n"
+      "HiddenServiceEnableIntroDoSBurstPerSec 274877906944\n";
+
+    setup_full_capture_of_logs(LOG_WARN);
+    ret = helper_config_service(conf, 0);
+    tt_int_op(ret, OP_EQ, -1);
+    expect_log_msg_containing("HiddenServiceEnableIntroDoSBurstPerSec must "
+                              "be between 0 and 2147483647, "
+                              "not 274877906944");
+    teardown_capture_of_logs();
+  }
+
+  /* Burst is smaller than rate. */
+  {
+    const char *conf =
+      "HiddenServiceDir /tmp/tor-test-hs-RANDOM/hs3\n"
+      "HiddenServiceVersion 3\n"
+      "HiddenServicePort 22 1.1.1.1:22\n"
+      "HiddenServiceEnableIntroDoSDefense 1\n"
+      "HiddenServiceEnableIntroDoSRatePerSec 42\n"
+      "HiddenServiceEnableIntroDoSBurstPerSec 27\n";
+
+    setup_full_capture_of_logs(LOG_WARN);
+    ret = helper_config_service(conf, 0);
+    tt_int_op(ret, OP_EQ, -1);
+    expect_log_msg_containing("Hidden service DoS defenses burst (27) can "
+                              "not be smaller than the rate value (42).");
+    teardown_capture_of_logs();
+  }
+
+  /* Negative value. */
+  {
+    const char *conf =
+      "HiddenServiceDir /tmp/tor-test-hs-RANDOM/hs3\n"
+      "HiddenServiceVersion 3\n"
+      "HiddenServicePort 22 1.1.1.1:22\n"
+      "HiddenServiceEnableIntroDoSDefense 1\n"
+      "HiddenServiceEnableIntroDoSRatePerSec -1\n"
+      "HiddenServiceEnableIntroDoSBurstPerSec 42\n";
+
+    setup_full_capture_of_logs(LOG_WARN);
+    ret = helper_config_service(conf, 0);
+    tt_int_op(ret, OP_EQ, -1);
+    expect_log_msg_containing("HiddenServiceEnableIntroDoSRatePerSec must be "
+                              "between 0 and 2147483647, not -1");
+    teardown_capture_of_logs();
+  }
+
+ done:
+  hs_free_all();
+}
+
 struct testcase_t hs_config_tests[] = {
   /* Invalid service not specific to any version. */
   { "invalid_service", test_invalid_service, TT_FORK,
@@ -512,6 +617,10 @@ struct testcase_t hs_config_tests[] = {
   { "staging_service_v3", test_staging_service_v3, TT_FORK,
     NULL, NULL },
 
+  /* Test HS DoS parameters. */
+  { "dos_parameters", test_dos_parameters, TT_FORK,
+    NULL, NULL },
+
   END_OF_TESTCASES
 };
 



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