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997f779a7f
This will give relay operators the ability of disabling the caching of directory data. In general, this should not be necessary, but on some lower-resource systems it may beneficial.
276 lines
7.8 KiB
C
276 lines
7.8 KiB
C
/* Copyright (c) 2001-2004, Roger Dingledine.
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2015, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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#define CONFIG_PRIVATE
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#include "or.h"
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#include "confparse.h"
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#include "config.h"
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#include "test.h"
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typedef struct {
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int severity;
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uint32_t domain;
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char *msg;
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} logmsg_t;
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static smartlist_t *messages = NULL;
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static void
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log_cback(int severity, uint32_t domain, const char *msg)
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{
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logmsg_t *x = tor_malloc(sizeof(*x));
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x->severity = severity;
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x->domain = domain;
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x->msg = tor_strdup(msg);
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if (!messages)
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messages = smartlist_new();
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smartlist_add(messages, x);
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}
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static void
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setup_log_callback(void)
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{
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log_severity_list_t lst;
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memset(&lst, 0, sizeof(lst));
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lst.masks[LOG_ERR - LOG_ERR] = ~0;
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lst.masks[LOG_WARN - LOG_ERR] = ~0;
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lst.masks[LOG_NOTICE - LOG_ERR] = ~0;
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add_callback_log(&lst, log_cback);
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}
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static char *
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dump_logs(void)
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{
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smartlist_t *msgs;
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char *out;
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if (! messages)
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return tor_strdup("");
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msgs = smartlist_new();
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SMARTLIST_FOREACH_BEGIN(messages, logmsg_t *, x) {
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smartlist_add_asprintf(msgs, "[%s] %s",
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log_level_to_string(x->severity), x->msg);
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} SMARTLIST_FOREACH_END(x);
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out = smartlist_join_strings(msgs, "", 0, NULL);
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SMARTLIST_FOREACH(msgs, char *, cp, tor_free(cp));
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smartlist_free(msgs);
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return out;
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}
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static void
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clear_log_messages(void)
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{
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if (!messages)
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return;
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SMARTLIST_FOREACH(messages, logmsg_t *, m,
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{ tor_free(m->msg); tor_free(m); });
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smartlist_free(messages);
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messages = NULL;
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}
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#define setup_options(opt,dflt) \
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do { \
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opt = options_new(); \
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opt->command = CMD_RUN_TOR; \
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options_init(opt); \
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\
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dflt = config_dup(&options_format, opt); \
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clear_log_messages(); \
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} while (0)
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static void
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test_options_validate_impl(const char *configuration,
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const char *expect_errmsg,
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int expect_log_severity,
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const char *expect_log)
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{
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or_options_t *opt=NULL;
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or_options_t *dflt;
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config_line_t *cl=NULL;
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char *msg=NULL;
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int r;
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setup_options(opt, dflt);
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r = config_get_lines(configuration, &cl, 1);
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tt_int_op(r, OP_EQ, 0);
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r = config_assign(&options_format, opt, cl, 0, 0, &msg);
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tt_int_op(r, OP_EQ, 0);
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r = options_validate(NULL, opt, dflt, 0, &msg);
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if (expect_errmsg && !msg) {
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TT_DIE(("Expected error message <%s> from <%s>, but got none.",
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expect_errmsg, configuration));
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} else if (expect_errmsg && !strstr(msg, expect_errmsg)) {
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TT_DIE(("Expected error message <%s> from <%s>, but got <%s>.",
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expect_errmsg, configuration, msg));
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} else if (!expect_errmsg && msg) {
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TT_DIE(("Expected no error message from <%s> but got <%s>.",
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configuration, msg));
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}
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tt_int_op((r == 0), OP_EQ, (msg == NULL));
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if (expect_log) {
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int found = 0;
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if (messages) {
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SMARTLIST_FOREACH_BEGIN(messages, logmsg_t *, m) {
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if (m->severity == expect_log_severity &&
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strstr(m->msg, expect_log)) {
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found = 1;
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break;
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}
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} SMARTLIST_FOREACH_END(m);
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}
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if (!found) {
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tor_free(msg);
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msg = dump_logs();
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TT_DIE(("Expected log message [%s] %s from <%s>, but got <%s>.",
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log_level_to_string(expect_log_severity), expect_log,
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configuration, msg));
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}
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}
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done:
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config_free_lines(cl);
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or_options_free(opt);
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or_options_free(dflt);
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tor_free(msg);
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clear_log_messages();
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}
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#define WANT_ERR(config, msg) \
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test_options_validate_impl((config), (msg), 0, NULL)
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#define WANT_LOG(config, severity, msg) \
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test_options_validate_impl((config), NULL, (severity), (msg))
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#define WANT_ERR_LOG(config, msg, severity, logmsg) \
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test_options_validate_impl((config), (msg), (severity), (logmsg))
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#define OK(config) \
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test_options_validate_impl((config), NULL, 0, NULL)
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static void
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test_options_validate(void *arg)
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{
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(void)arg;
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setup_log_callback();
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WANT_ERR("ExtORPort 500000", "Invalid ExtORPort");
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WANT_ERR_LOG("ServerTransportOptions trebuchet",
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"ServerTransportOptions did not parse",
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LOG_WARN, "Too few arguments");
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OK("ServerTransportOptions trebuchet sling=snappy");
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OK("ServerTransportOptions trebuchet sling=");
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WANT_ERR_LOG("ServerTransportOptions trebuchet slingsnappy",
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"ServerTransportOptions did not parse",
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LOG_WARN, "\"slingsnappy\" is not a k=v");
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WANT_ERR("DirPort 8080\nDirCache 0",
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"DirPort configured but DirCache disabled.");
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WANT_ERR("BridgeRelay 1\nDirCache 0",
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"We're a bridge but DirCache is disabled.");
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clear_log_messages();
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return;
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}
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#define MEGABYTEIFY(mb) (U64_LITERAL(mb) << 20)
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static void
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test_have_enough_mem_for_dircache(void *arg)
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{
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(void)arg;
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or_options_t *opt=NULL;
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or_options_t *dflt;
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config_line_t *cl=NULL;
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char *msg=NULL;;
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int r;
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const char *configuration = "ORPort 8080\nDirCache 1", *expect_errmsg;
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setup_options(opt, dflt);
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setup_log_callback();
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(void)dflt;
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r = config_get_lines(configuration, &cl, 1);
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tt_int_op(r, OP_EQ, 0);
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r = config_assign(&options_format, opt, cl, 0, 0, &msg);
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tt_int_op(r, OP_EQ, 0);
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/* 300 MB RAM available, DirCache enabled */
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r = have_enough_mem_for_dircache(opt, MEGABYTEIFY(300), &msg);
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tt_int_op(r, OP_EQ, 0);
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tt_assert(!msg);
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/* 200 MB RAM available, DirCache enabled */
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r = have_enough_mem_for_dircache(opt, MEGABYTEIFY(200), &msg);
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tt_int_op(r, OP_EQ, -1);
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expect_errmsg = "Being a directory cache (default) with less than ";
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if (!strstr(msg, expect_errmsg)) {
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TT_DIE(("Expected error message <%s> from <%s>, but got <%s>.",
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expect_errmsg, configuration, msg));
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}
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tor_free(msg);
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configuration = "ORPort 8080\nDirCache 1\nBridgeRelay 1";
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r = config_get_lines(configuration, &cl, 1);
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tt_int_op(r, OP_EQ, 0);
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r = config_assign(&options_format, opt, cl, 0, 0, &msg);
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tt_int_op(r, OP_EQ, 0);
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/* 300 MB RAM available, DirCache enabled, Bridge */
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r = have_enough_mem_for_dircache(opt, MEGABYTEIFY(300), &msg);
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tt_int_op(r, OP_EQ, 0);
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tt_assert(!msg);
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/* 200 MB RAM available, DirCache enabled, Bridge */
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r = have_enough_mem_for_dircache(opt, MEGABYTEIFY(200), &msg);
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tt_int_op(r, OP_EQ, -1);
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expect_errmsg = "Running a Bridge with less than ";
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if (!strstr(msg, expect_errmsg)) {
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TT_DIE(("Expected error message <%s> from <%s>, but got <%s>.",
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expect_errmsg, configuration, msg));
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}
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tor_free(msg);
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configuration = "ORPort 8080\nDirCache 0";
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r = config_get_lines(configuration, &cl, 1);
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tt_int_op(r, OP_EQ, 0);
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r = config_assign(&options_format, opt, cl, 0, 0, &msg);
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tt_int_op(r, OP_EQ, 0);
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/* 200 MB RAM available, DirCache disabled */
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r = have_enough_mem_for_dircache(opt, MEGABYTEIFY(200), &msg);
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tt_int_op(r, OP_EQ, 0);
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tt_assert(!msg);
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/* 300 MB RAM available, DirCache disabled */
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r = have_enough_mem_for_dircache(opt, MEGABYTEIFY(300), &msg);
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tt_int_op(r, OP_EQ, -1);
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expect_errmsg = "DirCache is disabled and we are configured as a ";
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if (!strstr(msg, expect_errmsg)) {
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TT_DIE(("Expected error message <%s> from <%s>, but got <%s>.",
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expect_errmsg, configuration, msg));
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}
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tor_free(msg);
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clear_log_messages();
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done:
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if (msg)
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tor_free(msg);
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tor_free(dflt);
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tor_free(opt);
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tor_free(cl);
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return;
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}
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struct testcase_t options_tests[] = {
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{ "validate", test_options_validate, TT_FORK, NULL, NULL },
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{ "mem_dircache", test_have_enough_mem_for_dircache, TT_FORK, NULL, NULL },
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END_OF_TESTCASES
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};
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