diff options
Diffstat (limited to 'src/app/config/config.c')
| -rw-r--r-- | src/app/config/config.c | 220 |
1 files changed, 175 insertions, 45 deletions
diff --git a/src/app/config/config.c b/src/app/config/config.c index f8a140ad9f..e02bcf0387 100644 --- a/src/app/config/config.c +++ b/src/app/config/config.c @@ -1,7 +1,7 @@ /* Copyright (c) 2001 Matej Pfajfar. * Copyright (c) 2001-2004, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. - * Copyright (c) 2007-2020, The Tor Project, Inc. */ + * Copyright (c) 2007-2021, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** @@ -103,8 +103,6 @@ #include "feature/relay/routermode.h" #include "feature/relay/relay_config.h" #include "feature/relay/transport_config.h" -#include "feature/rend/rendclient.h" -#include "feature/rend/rendservice.h" #include "lib/geoip/geoip.h" #include "feature/stats/geoip_stats.h" #include "lib/compress/compress.h" @@ -195,6 +193,7 @@ static const config_abbrev_t option_abbrevs_[] = { PLURAL(AuthDirBadDirCC), PLURAL(AuthDirBadExitCC), PLURAL(AuthDirInvalidCC), + PLURAL(AuthDirMiddleOnlyCC), PLURAL(AuthDirRejectCC), PLURAL(EntryNode), PLURAL(ExcludeNode), @@ -333,6 +332,8 @@ static const config_var_t option_vars_[] = { V(AuthDirBadExitCCs, CSV, ""), V(AuthDirInvalid, LINELIST, NULL), V(AuthDirInvalidCCs, CSV, ""), + V(AuthDirMiddleOnly, LINELIST, NULL), + V(AuthDirMiddleOnlyCCs, CSV, ""), V(AuthDirReject, LINELIST, NULL), V(AuthDirRejectCCs, CSV, ""), OBSOLETE("AuthDirRejectUnlisted"), @@ -354,6 +355,7 @@ static const config_var_t option_vars_[] = { V(CacheDirectoryGroupReadable, AUTOBOOL, "auto"), V(CellStatistics, BOOL, "0"), V(PaddingStatistics, BOOL, "1"), + V(OverloadStatistics, BOOL, "1"), V(LearnCircuitBuildTimeout, BOOL, "1"), V(CircuitBuildTimeout, INTERVAL, "0"), OBSOLETE("CircuitIdleTimeout"), @@ -424,23 +426,11 @@ static const config_var_t option_vars_[] = { OBSOLETE("DynamicDHGroups"), VPORT(DNSPort), OBSOLETE("DNSListenAddress"), - V(DormantClientTimeout, INTERVAL, "24 hours"), - V(DormantTimeoutDisabledByIdleStreams, BOOL, "1"), + V(DormantClientTimeout, INTERVAL, "24 hours"), + V(DormantTimeoutEnabled, BOOL, "1"), + V(DormantTimeoutDisabledByIdleStreams, BOOL, "1"), V(DormantOnFirstStartup, BOOL, "0"), V(DormantCanceledByStartup, BOOL, "0"), - /* DoS circuit creation options. */ - V(DoSCircuitCreationEnabled, AUTOBOOL, "auto"), - V(DoSCircuitCreationMinConnections, POSINT, "0"), - V(DoSCircuitCreationRate, POSINT, "0"), - V(DoSCircuitCreationBurst, POSINT, "0"), - V(DoSCircuitCreationDefenseType, INT, "0"), - V(DoSCircuitCreationDefenseTimePeriod, INTERVAL, "0"), - /* DoS connection options. */ - V(DoSConnectionEnabled, AUTOBOOL, "auto"), - V(DoSConnectionMaxConcurrentCount, POSINT, "0"), - V(DoSConnectionDefenseType, INT, "0"), - /* DoS single hop client options. */ - V(DoSRefuseSingleHopClientRendezvous, AUTOBOOL, "auto"), V(DownloadExtraInfo, BOOL, "0"), V(TestingEnableConnBwEvent, BOOL, "0"), V(TestingEnableCellStatsEvent, BOOL, "0"), @@ -498,12 +488,13 @@ static const config_var_t option_vars_[] = { V(MainloopStats, BOOL, "0"), V(HashedControlPassword, LINELIST, NULL), OBSOLETE("HidServDirectoryV2"), + OBSOLETE("HiddenServiceAuthorizeClient"), + OBSOLETE("HidServAuth"), VAR("HiddenServiceDir", LINELIST_S, RendConfigLines, NULL), VAR("HiddenServiceDirGroupReadable", LINELIST_S, RendConfigLines, NULL), VAR("HiddenServiceOptions",LINELIST_V, RendConfigLines, NULL), VAR("HiddenServicePort", LINELIST_S, RendConfigLines, NULL), VAR("HiddenServiceVersion",LINELIST_S, RendConfigLines, NULL), - VAR("HiddenServiceAuthorizeClient",LINELIST_S,RendConfigLines, NULL), VAR("HiddenServiceAllowUnknownPorts",LINELIST_S, RendConfigLines, NULL), VAR("HiddenServiceMaxStreams",LINELIST_S, RendConfigLines, NULL), VAR("HiddenServiceMaxStreamsCloseCircuit",LINELIST_S, RendConfigLines, NULL), @@ -517,7 +508,6 @@ static const config_var_t option_vars_[] = { VAR("HiddenServiceOnionBalanceInstance", LINELIST_S, RendConfigLines, NULL), VAR("HiddenServiceStatistics", BOOL, HiddenServiceStatistics_option, "1"), - V(HidServAuth, LINELIST, NULL), V(ClientOnionAuthDir, FILENAME, NULL), OBSOLETE("CloseHSClientCircuitsImmediatelyOnTimeout"), OBSOLETE("CloseHSServiceRendCircuitsImmediatelyOnTimeout"), @@ -559,7 +549,7 @@ static const config_var_t option_vars_[] = { V(MaxConsensusAgeForDiffs, INTERVAL, "0 seconds"), VAR("MaxMemInQueues", MEMUNIT, MaxMemInQueues_raw, "0"), OBSOLETE("MaxOnionsPending"), - V(MaxOnionQueueDelay, MSEC_INTERVAL, "1750 msec"), + V(MaxOnionQueueDelay, MSEC_INTERVAL, "0"), V(MaxUnparseableDescSizeToLog, MEMUNIT, "10 MB"), VPORT(MetricsPort), V(MetricsPortPolicy, LINELIST, NULL), @@ -629,11 +619,12 @@ static const config_var_t option_vars_[] = { V(ConnectionPadding, AUTOBOOL, "auto"), V(RefuseUnknownExits, AUTOBOOL, "auto"), V(CircuitPadding, BOOL, "1"), + V(ReconfigDropsBridgeDescs, BOOL, "0"), V(ReducedCircuitPadding, BOOL, "0"), V(RejectPlaintextPorts, CSV, ""), V(RelayBandwidthBurst, MEMUNIT, "0"), V(RelayBandwidthRate, MEMUNIT, "0"), - V(RendPostPeriod, INTERVAL, "1 hour"), + V(RendPostPeriod, INTERVAL, "1 hour"), /* Used internally. */ V(RephistTrackTime, INTERVAL, "24 hours"), V_IMMUTABLE(RunAsDaemon, BOOL, "0"), V(ReducedExitPolicy, BOOL, "0"), @@ -681,8 +672,11 @@ static const config_var_t option_vars_[] = { VAR("UseEntryGuards", BOOL, UseEntryGuards_option, "1"), OBSOLETE("UseEntryGuardsAsDirGuards"), V(UseGuardFraction, AUTOBOOL, "auto"), + V(VanguardsLiteEnabled, AUTOBOOL, "auto"), V(UseMicrodescriptors, AUTOBOOL, "auto"), OBSOLETE("UseNTorHandshake"), + VAR("__AlwaysCongestionControl", BOOL, AlwaysCongestionControl, "0"), + VAR("__SbwsExit", BOOL, SbwsExit, "0"), V_IMMUTABLE(User, STRING, NULL), OBSOLETE("UserspaceIOCPBuffers"), OBSOLETE("V1AuthoritativeDirectory"), @@ -2104,7 +2098,7 @@ options_act,(const or_options_t *old_options)) return -1; } - if (rend_non_anonymous_mode_enabled(options)) { + if (hs_service_non_anonymous_mode_enabled(options)) { log_warn(LD_GENERAL, "This copy of Tor was compiled or configured to run " "in a non-anonymous mode. It will provide NO ANONYMITY."); } @@ -2322,6 +2316,8 @@ options_act,(const or_options_t *old_options)) } if (transition_affects_guards) { + if (options->ReconfigDropsBridgeDescs) + routerlist_drop_bridge_descriptors(); if (guards_update_all()) { abandon_circuits = 1; } @@ -2446,6 +2442,8 @@ typedef enum { static const struct { /** The string that the user has to provide. */ const char *name; + /** Optional short name. */ + const char *short_name; /** Does this option accept an argument? */ takes_argument_t takes_argument; /** If not CMD_RUN_TOR, what should Tor do when it starts? */ @@ -2453,7 +2451,8 @@ static const struct { /** If nonzero, set the quiet level to this. 1 is "hush", 2 is "quiet" */ int quiet; } CMDLINE_ONLY_OPTIONS[] = { - { .name="-f", + { .name="--torrc-file", + .short_name="-f", .takes_argument=ARGUMENT_NECESSARY }, { .name="--allow-missing-torrc" }, { .name="--defaults-torrc", @@ -2467,6 +2466,7 @@ static const struct { .command=CMD_DUMP_CONFIG, .quiet=QUIET_SILENT }, { .name="--list-fingerprint", + .takes_argument=ARGUMENT_OPTIONAL, .command=CMD_LIST_FINGERPRINT }, { .name="--keygen", .command=CMD_KEYGEN }, @@ -2495,10 +2495,8 @@ static const struct { { .name="--library-versions", .command=CMD_IMMEDIATE, .quiet=QUIET_HUSH }, - { .name="-h", - .command=CMD_IMMEDIATE, - .quiet=QUIET_HUSH }, { .name="--help", + .short_name="-h", .command=CMD_IMMEDIATE, .quiet=QUIET_HUSH }, { .name="--list-torrc-options", @@ -2542,7 +2540,9 @@ config_parse_commandline(int argc, char **argv, int ignore_errors) bool is_a_command = false; for (j = 0; CMDLINE_ONLY_OPTIONS[j].name != NULL; ++j) { - if (!strcmp(argv[i], CMDLINE_ONLY_OPTIONS[j].name)) { + if (!strcmp(argv[i], CMDLINE_ONLY_OPTIONS[j].name) || + (CMDLINE_ONLY_OPTIONS[j].short_name && + !strcmp(argv[i], CMDLINE_ONLY_OPTIONS[j].short_name))) { is_cmdline = 1; want_arg = CMDLINE_ONLY_OPTIONS[j].takes_argument; if (CMDLINE_ONLY_OPTIONS[j].command != CMD_RUN_TOR) { @@ -2585,8 +2585,11 @@ config_parse_commandline(int argc, char **argv, int ignore_errors) parsed_cmdline_free(result); return NULL; } - } else if (want_arg == ARGUMENT_OPTIONAL && is_last) { + } else if (want_arg == ARGUMENT_OPTIONAL && + /* optional arguments may never start with '-'. */ + (is_last || argv[i+1][0] == '-')) { arg = tor_strdup(""); + want_arg = ARGUMENT_NONE; // prevent skipping the next flag. } else { arg = (want_arg != ARGUMENT_NONE) ? tor_strdup(argv[i+1]) : tor_strdup(""); @@ -2685,7 +2688,7 @@ print_usage(void) printf( "Copyright (c) 2001-2004, Roger Dingledine\n" "Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson\n" -"Copyright (c) 2007-2020, The Tor Project, Inc.\n\n" +"Copyright (c) 2007-2021, The Tor Project, Inc.\n\n" "tor -f <torrc> [args]\n" "See man page for options, or https://www.torproject.org/ for " "documentation.\n"); @@ -3210,7 +3213,7 @@ options_validate_single_onion(or_options_t *options, char **msg) } /* Now that we've checked that the two options are consistent, we can safely - * call the rend_service_* functions that abstract these options. */ + * call the hs_service_* functions that abstract these options. */ /* If you run an anonymous client with an active Single Onion service, the * client loses anonymity. */ @@ -3219,13 +3222,13 @@ options_validate_single_onion(or_options_t *options, char **msg) options->NATDPort_set || options->DNSPort_set || options->HTTPTunnelPort_set); - if (rend_service_non_anonymous_mode_enabled(options) && client_port_set) { + if (hs_service_non_anonymous_mode_enabled(options) && client_port_set) { REJECT("HiddenServiceNonAnonymousMode is incompatible with using Tor as " "an anonymous client. Please set Socks/Trans/NATD/DNSPort to 0, or " "revert HiddenServiceNonAnonymousMode to 0."); } - if (rend_service_allow_non_anonymous_connection(options) + if (hs_service_allow_non_anonymous_connection(options) && options->UseEntryGuards) { /* Single Onion services only use entry guards when uploading descriptors; * all other connections are one-hop. Further, Single Onions causes the @@ -3275,7 +3278,7 @@ options_validate_cb(const void *old_options_, void *options_, char **msg) } #else /* defined(HAVE_SYS_UN_H) */ if (options->ControlSocketsGroupWritable && !options->ControlSocket) { - *msg = tor_strdup("Setting ControlSocketGroupWritable without setting " + *msg = tor_strdup("Setting ControlSocketsGroupWritable without setting " "a ControlSocket makes no sense."); return -1; } @@ -3575,7 +3578,7 @@ options_validate_cb(const void *old_options_, void *options_, char **msg) if (!(options->UseEntryGuards) && (options->RendConfigLines != NULL) && - !rend_service_allow_non_anonymous_connection(options)) { + !hs_service_allow_non_anonymous_connection(options)) { log_warn(LD_CONFIG, "UseEntryGuards is disabled, but you have configured one or more " "hidden services on this Tor instance. Your hidden services " @@ -3618,7 +3621,7 @@ options_validate_cb(const void *old_options_, void *options_, char **msg) } /* Single Onion Services: non-anonymous hidden services */ - if (rend_service_non_anonymous_mode_enabled(options)) { + if (hs_service_non_anonymous_mode_enabled(options)) { log_warn(LD_CONFIG, "HiddenServiceNonAnonymousMode is set. Every hidden service on " "this tor instance is NON-ANONYMOUS. If " @@ -4318,16 +4321,21 @@ find_torrc_filename(const config_line_t *cmd_arg, char *fname=NULL; const config_line_t *p_index; const char *fname_opt = defaults_file ? "--defaults-torrc" : "-f"; + const char *fname_long_opt = defaults_file ? "--defaults-torrc" : + "--torrc-file"; const char *ignore_opt = defaults_file ? NULL : "--ignore-missing-torrc"; + const char *keygen_opt = "--keygen"; if (defaults_file) *ignore_missing_torrc = 1; for (p_index = cmd_arg; p_index; p_index = p_index->next) { - if (!strcmp(p_index->key, fname_opt)) { + // options_init_from_torrc ensures only the short or long name is present + if (!strcmp(p_index->key, fname_opt) || + !strcmp(p_index->key, fname_long_opt)) { if (fname) { log_warn(LD_CONFIG, "Duplicate %s options on command line.", - fname_opt); + p_index->key); tor_free(fname); } fname = expand_filename(p_index->value); @@ -4340,7 +4348,8 @@ find_torrc_filename(const config_line_t *cmd_arg, } *using_default_fname = 0; - } else if (ignore_opt && !strcmp(p_index->key,ignore_opt)) { + } else if ((ignore_opt && !strcmp(p_index->key, ignore_opt)) || + (keygen_opt && !strcmp(p_index->key, keygen_opt))) { *ignore_missing_torrc = 1; } } @@ -4487,6 +4496,25 @@ options_init_from_torrc(int argc, char **argv) if (config_line_find(cmdline_only_options, "--version")) { printf("Tor version %s.\n",get_version()); + printf("Tor is running on %s with Libevent %s, " + "%s %s, Zlib %s, Liblzma %s, Libzstd %s and %s %s as libc.\n", + get_uname(), + tor_libevent_get_version_str(), + crypto_get_library_name(), + crypto_get_library_version_string(), + tor_compress_supports_method(ZLIB_METHOD) ? + tor_compress_version_str(ZLIB_METHOD) : "N/A", + tor_compress_supports_method(LZMA_METHOD) ? + tor_compress_version_str(LZMA_METHOD) : "N/A", + tor_compress_supports_method(ZSTD_METHOD) ? + tor_compress_version_str(ZSTD_METHOD) : "N/A", + tor_libc_get_name() ? + tor_libc_get_name() : "Unknown", + tor_libc_get_version_str()); + printf("Tor compiled with %s version %s\n", + strcmp(COMPILER_VENDOR, "gnu") == 0? + COMPILER:COMPILER_VENDOR, COMPILER_VERSION); + return 1; } @@ -4511,6 +4539,16 @@ options_init_from_torrc(int argc, char **argv) } else { cf_defaults = load_torrc_from_disk(cmdline_only_options, 1); const config_line_t *f_line = config_line_find(cmdline_only_options, "-f"); + const config_line_t *f_line_long = config_line_find(cmdline_only_options, + "--torrc-file"); + if (f_line && f_line_long) { + log_err(LD_CONFIG, "-f and --torrc-file cannot be used together."); + retval = -1; + goto err; + } else if (f_line_long) { + f_line = f_line_long; + } + const int read_torrc_from_stdin = (f_line != NULL && strcmp(f_line->value, "-") == 0); @@ -4803,7 +4841,7 @@ addressmap_register_auto(const char *from, const char *to, } addressmap_register(from, tor_strdup(to), expires, addrmap_source, - from_wildcard, to_wildcard); + from_wildcard, to_wildcard, 0); return 0; } @@ -4950,9 +4988,9 @@ options_init_logs(const or_options_t *old_options, const or_options_t *options, if (!validate_only) { add_syslog_log(severity, options->SyslogIdentityTag); } -#else +#else /* !defined(HAVE_SYSLOG_H) */ log_warn(LD_CONFIG, "The android logging API is no longer supported."); -#endif +#endif /* defined(HAVE_SYSLOG_H) */ goto cleanup; } } @@ -5439,6 +5477,77 @@ pt_parse_transport_line(const or_options_t *options, return r; } +/** + * Parse a flag describing an extra dirport for a directory authority. + * + * Right now, the supported format is exactly: + * `{upload,download,voting}=http://[IP:PORT]/`. + * Other URL schemes, and other suffixes, might be supported in the future. + * + * Only call this function if `flag` starts with one of the above strings. + * + * Return 0 on success, and -1 on failure. + * + * If `ds` is provided, then add any parsed dirport to `ds`. If `ds` is NULL, + * take no action other than parsing. + **/ +static int +parse_dirauth_dirport(dir_server_t *ds, const char *flag) +{ + tor_assert(flag); + + auth_dirport_usage_t usage; + + if (!strcasecmpstart(flag, "upload=")) { + usage = AUTH_USAGE_UPLOAD; + } else if (!strcasecmpstart(flag, "download=")) { + usage = AUTH_USAGE_DOWNLOAD; + } else if (!strcasecmpstart(flag, "vote=")) { + usage = AUTH_USAGE_VOTING; + } else { + // We shouldn't get called with a flag that we don't recognize. + tor_assert_nonfatal_unreached(); + return -1; + } + + const char *eq = strchr(flag, '='); + tor_assert(eq); + const char *target = eq + 1; + + // Find the part inside the http://{....}/ + if (strcmpstart(target, "http://")) { + log_warn(LD_CONFIG, "Unsupported URL scheme in authority flag %s", flag); + return -1; + } + const char *addr = target + strlen("http://"); + + const char *eos = strchr(addr, '/'); + size_t addr_len; + if (eos && strcmp(eos, "/")) { + log_warn(LD_CONFIG, "Unsupported URL prefix in authority flag %s", flag); + return -1; + } else if (eos) { + addr_len = eos - addr; + } else { + addr_len = strlen(addr); + } + + // Finally, parse the addr:port part. + char *addr_string = tor_strndup(addr, addr_len); + tor_addr_port_t dirport; + memset(&dirport, 0, sizeof(dirport)); + int rv = tor_addr_port_parse(LOG_WARN, addr_string, + &dirport.addr, &dirport.port, -1); + if (ds != NULL && rv == 0) { + trusted_dir_server_add_dirport(ds, usage, &dirport); + } else if (rv == -1) { + log_warn(LD_CONFIG, "Unable to parse address in authority flag %s",flag); + } + + tor_free(addr_string); + return rv; +} + /** Read the contents of a DirAuthority line from <b>line</b>. If * <b>validate_only</b> is 0, and the line is well-formed, and it * shares any bits with <b>required_type</b> or <b>required_type</b> @@ -5459,6 +5568,7 @@ parse_dir_authority_line(const char *line, dirinfo_type_t required_type, char v3_digest[DIGEST_LEN]; dirinfo_type_t type = 0; double weight = 1.0; + smartlist_t *extra_dirports = smartlist_new(); memset(v3_digest, 0, sizeof(v3_digest)); @@ -5527,6 +5637,12 @@ parse_dir_authority_line(const char *line, dirinfo_type_t required_type, } ipv6_addrport_ptr = &ipv6_addrport; } + } else if (!strcasecmpstart(flag, "upload=") || + !strcasecmpstart(flag, "download=") || + !strcasecmpstart(flag, "vote=")) { + // We'll handle these after creating the authority object. + smartlist_add(extra_dirports, flag); + flag = NULL; // prevent double-free. } else { log_warn(LD_CONFIG, "Unrecognized flag '%s' on DirAuthority line", flag); @@ -5570,6 +5686,13 @@ parse_dir_authority_line(const char *line, dirinfo_type_t required_type, goto err; } + if (validate_only) { + SMARTLIST_FOREACH_BEGIN(extra_dirports, const char *, cp) { + if (parse_dirauth_dirport(NULL, cp) < 0) + goto err; + } SMARTLIST_FOREACH_END(cp); + } + if (!validate_only && (!required_type || required_type & type)) { dir_server_t *ds; if (required_type) @@ -5581,16 +5704,23 @@ parse_dir_authority_line(const char *line, dirinfo_type_t required_type, ipv6_addrport_ptr, digest, v3_digest, type, weight))) goto err; + + SMARTLIST_FOREACH_BEGIN(extra_dirports, const char *, cp) { + if (parse_dirauth_dirport(ds, cp) < 0) + goto err; + } SMARTLIST_FOREACH_END(cp); dir_server_add(ds); } r = 0; goto done; - err: + err: r = -1; - done: + done: + SMARTLIST_FOREACH(extra_dirports, char*, s, tor_free(s)); + smartlist_free(extra_dirports); SMARTLIST_FOREACH(items, char*, s, tor_free(s)); smartlist_free(items); tor_free(addrport); @@ -6032,7 +6162,7 @@ port_parse_config(smartlist_t *out, tor_free(addrtmp); } else { /* Try parsing integer port before address, because, who knows? - "9050" might be a valid address. */ + * "9050" might be a valid address. */ port = (int) tor_parse_long(addrport, 10, 0, 65535, &ok, NULL); if (ok) { tor_addr_copy(&addr, &default_addr); |