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[tor/release-0.2.3] Don't include a router in an md consensus if we can't find a md for it.
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit 7143d112a69806bde4a29bf8da94704cfb435fe3 Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Jul 31 10:54:14 2012 -0400 Don't include a router in an md consensus if we can't find a md for it. The spec requires that every router in a microdesc consensus have an m line; we weren't obeying that spec. This creates a new consensus method (13) to allow voting to continue to work right. Partial fix for bug 6404; fix on 0.2.2.6-alpha. --- changes/bug6404 | 5 +++++ src/or/dirvote.c | 13 ++++++++++++- 2 files changed, 17 insertions(+), 1 deletions(-) diff --git a/changes/bug6404 b/changes/bug6404 index d01964d..64d4594 100644 --- a/changes/bug6404 +++ b/changes/bug6404 @@ -5,3 +5,8 @@ with complex policies or family declarations. Partial fix for bug 6404; fix on 0.2.2.6-alpha. + - Authorities no longer include any router in their + microdescriptor consensuses for which they couldn't generate or + agree on a microdescriptor. Partial fix for bug 6404; fix on + 0.2.2.6-alpha. + diff --git a/src/or/dirvote.c b/src/or/dirvote.c index 85ea85c..87af5be 100644 --- a/src/or/dirvote.c +++ b/src/or/dirvote.c @@ -54,7 +54,7 @@ static int dirvote_publish_consensus(void); static char *make_consensus_method_list(int low, int high, const char *sep); /** The highest consensus method that we currently support. */ -#define MAX_SUPPORTED_CONSENSUS_METHOD 12 +#define MAX_SUPPORTED_CONSENSUS_METHOD 13 /** Lowest consensus method that contains a 'directory-footer' marker */ #define MIN_METHOD_FOR_FOOTER 9 @@ -72,6 +72,10 @@ static char *make_consensus_method_list(int low, int high, const char *sep); * for a param. */ #define MIN_METHOD_FOR_MAJORITY_PARAMS 12 +/** Lowest consensus method where microdesc consensuses omit any entry + * with no microdesc. */ +#define MIN_METHOD_FOR_MANDATORY_MICRODESC 13 + /* ===== * Voting * =====*/ @@ -1935,6 +1939,13 @@ networkstatus_compute_consensus(smartlist_t *votes, } } + if (flavor == FLAV_MICRODESC && + consensus_method >= MIN_METHOD_FOR_MANDATORY_MICRODESC && + tor_digest256_is_zero(microdesc_digest)) { + /* With no microdescriptor digest, we omit the entry entirely. */ + continue; + } + { char buf[4096]; /* Okay!! Now we can write the descriptor... */

1 0

[tor/release-0.2.3] Warn at parse time for routerstatus entry missing a microdesc consensus
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit 063138e001d3608b1e8b6619661d906cfea74ae0 Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Jul 31 11:00:18 2012 -0400 Warn at parse time for routerstatus entry missing a microdesc consensus In 0.2.3.18-rc, we started warning on this case while building a list of missing microdescriptor digests. That turned out to spam the logs; instead let's warn at parse time. Partial fix for bug 6404. --- changes/bug6404 | 4 ++++ src/or/microdesc.c | 7 +------ src/or/routerparse.c | 5 +++++ 3 files changed, 10 insertions(+), 6 deletions(-) diff --git a/changes/bug6404 b/changes/bug6404 index 64d4594..7708148 100644 --- a/changes/bug6404 +++ b/changes/bug6404 @@ -10,3 +10,7 @@ agree on a microdescriptor. Partial fix for bug 6404; fix on 0.2.2.6-alpha. + - Move log message when unable to find a microdesc in a + routerstatus entry to parse time. Previously we'd spam this + warning every time we tried to figure out which microdescriptors + to download. Partial fix for bug 6404; fix on 0.2.3.18-rc. diff --git a/src/or/microdesc.c b/src/or/microdesc.c index 9395a9a..c1ac1c3 100644 --- a/src/or/microdesc.c +++ b/src/or/microdesc.c @@ -643,13 +643,8 @@ microdesc_list_missing_digest256(networkstatus_t *ns, microdesc_cache_t *cache, continue; if (skip && digestmap_get(skip, rs->descriptor_digest)) continue; - if (tor_mem_is_zero(rs->descriptor_digest, DIGEST256_LEN)) { - log_info(LD_BUG, "Found an entry in networkstatus with no " - "microdescriptor digest. (Router %s=%s at %s:%d.)", - rs->nickname, hex_str(rs->identity_digest, DIGEST_LEN), - fmt_addr32(rs->addr), rs->or_port); + if (tor_mem_is_zero(rs->descriptor_digest, DIGEST256_LEN)) continue; - } /* XXXX Also skip if we're a noncache and wouldn't use this router. * XXXX NM Microdesc */ diff --git a/src/or/routerparse.c b/src/or/routerparse.c index 4231a17..8b69ad1 100644 --- a/src/or/routerparse.c +++ b/src/or/routerparse.c @@ -2201,6 +2201,11 @@ routerstatus_parse_entry_from_string(memarea_t *area, escaped(tok->args[0])); goto err; } + } else { + log_info(LD_BUG, "Found an entry in networkstatus with no " + "microdescriptor digest. (Router %s=%s at %s:%d.)", + rs->nickname, hex_str(rs->identity_digest, DIGEST_LEN), + fmt_addr32(rs->addr), rs->or_port); } }

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[tor/release-0.2.3] Remove the upper limit on the size of MD we can generate.
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit d3e1e458e11715a9fea2fea2cb228ff925c72851 Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Jul 31 13:12:07 2012 -0400 Remove the upper limit on the size of MD we can generate. --- src/or/dirvote.c | 34 +++++++++++++++++----------------- 1 files changed, 17 insertions(+), 17 deletions(-) diff --git a/src/or/dirvote.c b/src/or/dirvote.c index 87af5be..dc1ba7e 100644 --- a/src/or/dirvote.c +++ b/src/or/dirvote.c @@ -3513,9 +3513,9 @@ dirvote_create_microdescriptor(const routerinfo_t *ri) { microdesc_t *result = NULL; char *key = NULL, *summary = NULL, *family = NULL; - char buf[2048]; size_t keylen; - char *out = buf, *end = buf+sizeof(buf); + smartlist_t *chunks = smartlist_new(); + char *output; if (crypto_pk_write_public_key_to_string(ri->onion_pkey, &key, &keylen)<0) goto done; @@ -3523,23 +3523,19 @@ dirvote_create_microdescriptor(const routerinfo_t *ri) if (ri->declared_family) family = smartlist_join_strings(ri->declared_family, " ", 0, NULL); - if (tor_snprintf(out, end-out, "onion-key\n%s", key)<0) - goto done; - out += strlen(out); - if (family) { - if (tor_snprintf(out, end-out, "family %s\n", family)<0) - goto done; - out += strlen(out); - } - if (summary && strcmp(summary, "reject 1-65535")) { - if (tor_snprintf(out, end-out, "p %s\n", summary)<0) - goto done; - out += strlen(out); - } - *out = '\0'; /* Make sure it's nul-terminated. This should be a no-op */ + smartlist_add_asprintf(chunks, "onion-key\n%s", key); + + if (family) + smartlist_add_asprintf(chunks, "family %s\n", family); + + if (summary && strcmp(summary, "reject 1-65535")) + smartlist_add_asprintf(chunks, "p %s\n", summary); + + output = smartlist_join_strings(chunks, "", 0, NULL); { - smartlist_t *lst = microdescs_parse_from_string(buf, out, 0, 1); + smartlist_t *lst = microdescs_parse_from_string(output, + output+strlen(output), 0, 1); if (smartlist_len(lst) != 1) { log_warn(LD_DIR, "We generated a microdescriptor we couldn't parse."); SMARTLIST_FOREACH(lst, microdesc_t *, md, microdesc_free(md)); @@ -3554,6 +3550,10 @@ dirvote_create_microdescriptor(const routerinfo_t *ri) tor_free(key); tor_free(summary); tor_free(family); + if (chunks) { + SMARTLIST_FOREACH(chunks, char *, cp, tor_free(cp)); + smartlist_free(chunks); + } return result; }

1 0

[tor/release-0.2.3] Defensive programming: clear rs_out between iterations.
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit 2d6d5db2fe4f8a4538c5bed903f7e1576e9eea40 Author: Nick Mathewson <nickm(a)torproject.org> Date: Wed Aug 1 17:25:34 2012 -0400 Defensive programming: clear rs_out between iterations. I can't currently find a bug here, but there are a couple of near-misses. Addresses ticket 6514; reported pseudonymously on IRC. --- changes/bug6514 | 5 +++++ src/or/dirvote.c | 1 + 2 files changed, 6 insertions(+), 0 deletions(-) diff --git a/changes/bug6514 b/changes/bug6514 new file mode 100644 index 0000000..84633bd --- /dev/null +++ b/changes/bug6514 @@ -0,0 +1,5 @@ + o Minor bugfixes: + - Add a (probably redundant) memory clear between iterations of + the router status voting loop, to prevent future coding errors + where data might leak between iterations of the loop. Resolves + ticket 6514. diff --git a/src/or/dirvote.c b/src/or/dirvote.c index 7995873..bc77973 100644 --- a/src/or/dirvote.c +++ b/src/or/dirvote.c @@ -1752,6 +1752,7 @@ networkstatus_compute_consensus(smartlist_t *votes, rs = compute_routerstatus_consensus(matching_descs, consensus_method, microdesc_digest); /* Copy bits of that into rs_out. */ + memset(&rs_out, 0, sizeof(rs_out)); tor_assert(fast_memeq(lowest_id, rs->status.identity_digest,DIGEST_LEN)); memcpy(rs_out.identity_digest, lowest_id, DIGEST_LEN); memcpy(rs_out.descriptor_digest, rs->status.descriptor_digest,

1 0

[tor/release-0.2.3] Merge remote-tracking branch 'public/bug6252_again' into maint-0.2.3
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit 91b52a259a271df7ceeea6d8bf7adbd4d7e15a6c Merge: 93be3a8 393944d Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Aug 9 10:50:11 2012 -0400 Merge remote-tracking branch 'public/bug6252_again' into maint-0.2.3 changes/bug6252_again | 11 +++++++++++ src/or/relay.c | 14 ++++++++++++++ 2 files changed, 25 insertions(+), 0 deletions(-)

1 0

[tor/release-0.2.3] Don't infer we have a FooPort from the presence of a FooPort line
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit dfe03d36c8749eb07e9bb2ea47e88ff05e9e3127 Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Aug 9 15:48:43 2012 -0400 Don't infer we have a FooPort from the presence of a FooPort line Thanks to the changes we started making with SocksPort and friends in 0.2.3.3-alpha, any of our code that did "if (options->Sockport)" became wrong, since "SocksPort 0" would make that test true whereas using the default SocksPort value would make it false. (We didn't actually do "if (options->SockPort)" but we did have tests for TransPort. When we moved DirPort, ORPort, and ControlPort over to the same system in 0.2.3.9-alpha, the problem got worse, since our code is littered with checks for DirPort and ORPort as booleans. This code renames the current linelist-based FooPort options to FooPort_lines, and adds new FooPort_set options which get set at parse-and-validate time on the or_options_t. FooPort_set is true iff we will actually try to open a listener of the given type. (I renamed the FooPort options rather than leave them alone so that every previous user of a FooPort would need to get inspected, and so that any new code that forgetfully uses FooPort will need fail to compile.) Fix for bug 6507. --- changes/bug6507 | 7 +++ src/or/config.c | 127 +++++++++++++++++++++++++++++++++----------------- src/or/directory.c | 2 +- src/or/directory.h | 2 +- src/or/dirserv.c | 12 ++-- src/or/or.h | 33 ++++++++++--- src/or/router.c | 5 +- src/or/routerparse.c | 2 +- 8 files changed, 129 insertions(+), 61 deletions(-) diff --git a/changes/bug6507 b/changes/bug6507 new file mode 100644 index 0000000..5ca0298 --- /dev/null +++ b/changes/bug6507 @@ -0,0 +1,7 @@ + o Major bugfixes: + - Detect 'ORPort 0' as meaning, uniformly, that we're not running + as a server. Previously, some of our code would treat the + presence of any ORPort line as meaning that we should act like a + server, even though our new listener code would correctly not + open any ORPorts for ORPort 0. Similar bugs in other Port + options are also fixed. Fixes bug 6507; bugfix on 0.2.3.3-alpha. diff --git a/src/or/config.c b/src/or/config.c index a369297..7e67895 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -168,6 +168,9 @@ typedef struct config_var_t { /** An entry for config_vars: "The option name is obsolete." */ #define OBSOLETE(name) { name, CONFIG_TYPE_OBSOLETE, 0, NULL } +#define VPORT(member,conftype,initvalue) \ + VAR(#member, conftype, member ## _lines, initvalue) + /** Array of configuration options. Until we disallow nonstandard * abbreviations, order is significant, since the first matching option will * be chosen first. @@ -229,7 +232,7 @@ static config_var_t _option_vars[] = { V(ConstrainedSockSize, MEMUNIT, "8192"), V(ContactInfo, STRING, NULL), V(ControlListenAddress, LINELIST, NULL), - V(ControlPort, LINELIST, NULL), + VPORT(ControlPort, LINELIST, NULL), V(ControlPortFileGroupReadable,BOOL, "0"), V(ControlPortWriteToFile, FILENAME, NULL), V(ControlSocket, LINELIST, NULL), @@ -246,7 +249,7 @@ static config_var_t _option_vars[] = { V(DirListenAddress, LINELIST, NULL), OBSOLETE("DirFetchPeriod"), V(DirPolicy, LINELIST, NULL), - V(DirPort, LINELIST, NULL), + VPORT(DirPort, LINELIST, NULL), V(DirPortFrontPage, FILENAME, NULL), OBSOLETE("DirPostPeriod"), OBSOLETE("DirRecordUsageByCountry"), @@ -259,7 +262,7 @@ static config_var_t _option_vars[] = { V(DisableDebuggerAttachment, BOOL, "1"), V(DisableIOCP, BOOL, "1"), V(DynamicDHGroups, BOOL, "0"), - V(DNSPort, LINELIST, NULL), + VPORT(DNSPort, LINELIST, NULL), V(DNSListenAddress, LINELIST, NULL), V(DownloadExtraInfo, BOOL, "0"), V(EnforceDistinctSubnets, BOOL, "1"), @@ -345,7 +348,7 @@ static config_var_t _option_vars[] = { V(NewCircuitPeriod, INTERVAL, "30 seconds"), VAR("NamingAuthoritativeDirectory",BOOL, NamingAuthoritativeDir, "0"), V(NATDListenAddress, LINELIST, NULL), - V(NATDPort, LINELIST, NULL), + VPORT(NATDPort, LINELIST, NULL), V(Nickname, STRING, NULL), V(WarnUnsafeSocks, BOOL, "1"), OBSOLETE("NoPublish"), @@ -353,7 +356,7 @@ static config_var_t _option_vars[] = { V(NumCPUs, UINT, "0"), V(NumEntryGuards, UINT, "3"), V(ORListenAddress, LINELIST, NULL), - V(ORPort, LINELIST, NULL), + VPORT(ORPort, LINELIST, NULL), V(OutboundBindAddress, STRING, NULL), V(PathBiasCircThreshold, INT, "-1"), @@ -406,7 +409,7 @@ static config_var_t _option_vars[] = { V(ShutdownWaitLength, INTERVAL, "30 seconds"), V(SocksListenAddress, LINELIST, NULL), V(SocksPolicy, LINELIST, NULL), - V(SocksPort, LINELIST, NULL), + VPORT(SocksPort, LINELIST, NULL), V(SocksTimeout, INTERVAL, "2 minutes"), OBSOLETE("StatusFetchPeriod"), V(StrictNodes, BOOL, "0"), @@ -419,7 +422,7 @@ static config_var_t _option_vars[] = { V(TrackHostExitsExpire, INTERVAL, "30 minutes"), OBSOLETE("TrafficShaping"), V(TransListenAddress, LINELIST, NULL), - V(TransPort, LINELIST, NULL), + VPORT(TransPort, LINELIST, NULL), V(TunnelDirConns, BOOL, "1"), V(UpdateBridgesFromAuthority, BOOL, "0"), V(UseBridges, BOOL, "0"), @@ -622,7 +625,7 @@ static int parse_dir_server_line(const char *line, dirinfo_type_t required_type, int validate_only); static void port_cfg_free(port_cfg_t *port); -static int parse_ports(const or_options_t *options, int validate_only, +static int parse_ports(or_options_t *options, int validate_only, char **msg_out, int *n_ports_out); static int check_server_ports(const smartlist_t *ports, const or_options_t *options); @@ -1167,7 +1170,7 @@ options_act_reversible(const or_options_t *old_options, char **msg) #if defined(HAVE_NET_IF_H) && defined(HAVE_NET_PFVAR_H) /* Open /dev/pf before dropping privileges. */ - if (options->TransPort) { + if (options->TransPort_set) { if (get_pf_socket() < 0) { *msg = tor_strdup("Unable to open /dev/pf for transparent proxy."); goto rollback; @@ -1650,7 +1653,7 @@ options_act(const or_options_t *old_options) int was_relay = 0; if (options->BridgeRelay) { time_t int_start = time(NULL); - if (config_lines_eq(old_options->ORPort, options->ORPort)) { + if (config_lines_eq(old_options->ORPort_lines, options->ORPort_lines)) { int_start += RELAY_BRIDGE_STATS_DELAY; was_relay = 1; } @@ -1734,7 +1737,7 @@ options_act(const or_options_t *old_options) } else { options->DirReqStatistics = 0; /* Don't warn Tor clients, they don't use statistics */ - if (options->ORPort) + if (options->ORPort_set) log_notice(LD_CONFIG, "Configured to measure directory request " "statistics, but no GeoIP database found. " "Please specify a GeoIP database using the " @@ -3448,7 +3451,8 @@ options_validate(or_options_t *old_options, or_options_t *options, "Tor will still run, but probably won't do anything."); #ifndef USE_TRANSPARENT - if (options->TransPort || options->TransListenAddress) + /* XXXX024 I think we can remove this TransListenAddress */ + if (options->TransPort_set || options->TransListenAddress) REJECT("TransPort and TransListenAddress are disabled in this build."); #endif @@ -3518,10 +3522,10 @@ options_validate(or_options_t *old_options, or_options_t *options, } } - if (options->AuthoritativeDir && !options->DirPort) + if (options->AuthoritativeDir && !options->DirPort_set) REJECT("Running as authoritative directory, but no DirPort set."); - if (options->AuthoritativeDir && !options->ORPort) + if (options->AuthoritativeDir && !options->ORPort_set) REJECT("Running as authoritative directory, but no ORPort set."); if (options->AuthoritativeDir && options->ClientOnly) @@ -3708,11 +3712,12 @@ options_validate(or_options_t *old_options, or_options_t *options, "PublishServerDescriptor line."); } - if (options->BridgeRelay && options->DirPort) { + if (options->BridgeRelay && options->DirPort_set) { log_warn(LD_CONFIG, "Can't set a DirPort on a bridge relay; disabling " "DirPort"); - config_free_lines(options->DirPort); - options->DirPort = NULL; + config_free_lines(options->DirPort_lines); + options->DirPort_lines = NULL; + options->DirPort_set = 0; } if (options->MinUptimeHidServDirectoryV2 < 0) { @@ -3987,7 +3992,7 @@ options_validate(or_options_t *old_options, or_options_t *options, } } - if (options->ControlPort && !options->HashedControlPassword && + if (options->ControlPort_set && !options->HashedControlPassword && !options->HashedControlSessionPassword && !options->CookieAuthentication) { log_warn(LD_CONFIG, "ControlPort is open, but no authentication method " @@ -4067,7 +4072,7 @@ options_validate(or_options_t *old_options, or_options_t *options, MIN_CONSTRAINED_TCP_BUFFER, MAX_CONSTRAINED_TCP_BUFFER); return -1; } - if (options->DirPort) { + if (options->DirPort_set) { /* Providing cached directory entries while system TCP buffers are scarce * will exacerbate the socket errors. Suggest that this be disabled. */ COMPLAIN("You have requested constrained socket buffers while also " @@ -4226,7 +4231,7 @@ options_validate(or_options_t *old_options, or_options_t *options, } }); - if (options->BridgeRelay == 1 && ! options->ORPort) + if (options->BridgeRelay == 1 && ! options->ORPort_set) REJECT("BridgeRelay is 1, ORPort is not set. This is an invalid " "combination."); @@ -4326,7 +4331,7 @@ options_transition_affects_workers(const or_options_t *old_options, { if (!opt_streq(old_options->DataDirectory, new_options->DataDirectory) || old_options->NumCPUs != new_options->NumCPUs || - !config_lines_eq(old_options->ORPort, new_options->ORPort) || + !config_lines_eq(old_options->ORPort_lines, new_options->ORPort_lines) || old_options->ServerDNSSearchDomains != new_options->ServerDNSSearchDomains || old_options->_SafeLogging != new_options->_SafeLogging || @@ -4356,8 +4361,8 @@ options_transition_affects_descriptor(const or_options_t *old_options, !config_lines_eq(old_options->ExitPolicy,new_options->ExitPolicy) || old_options->ExitPolicyRejectPrivate != new_options->ExitPolicyRejectPrivate || - !config_lines_eq(old_options->ORPort, new_options->ORPort) || - !config_lines_eq(old_options->DirPort, new_options->DirPort) || + !config_lines_eq(old_options->ORPort_lines, new_options->ORPort_lines) || + !config_lines_eq(old_options->DirPort_lines, new_options->DirPort_lines) || old_options->ClientOnly != new_options->ClientOnly || old_options->DisableNetwork != new_options->DisableNetwork || old_options->_PublishServerDescriptor != @@ -5643,13 +5648,13 @@ warn_nonlocal_controller_ports(smartlist_t *ports, unsigned forbid) */ static int parse_port_config(smartlist_t *out, - const config_line_t *ports, - const config_line_t *listenaddrs, - const char *portname, - int listener_type, - const char *defaultaddr, - int defaultport, - unsigned flags) + const config_line_t *ports, + const config_line_t *listenaddrs, + const char *portname, + int listener_type, + const char *defaultaddr, + int defaultport, + unsigned flags) { smartlist_t *elts; int retval = -1; @@ -5687,7 +5692,7 @@ parse_port_config(smartlist_t *out, if (mainport == 0) { if (allow_spurious_listenaddr) - return 1; + return 1; /*DOCDOC*/ log_warn(LD_CONFIG, "%sPort must be defined if %sListenAddress is used", portname, portname); return -1; @@ -5968,16 +5973,34 @@ parse_unix_socket_config(smartlist_t *out, const config_line_t *cfg, return 0; } +/** Return the number of ports which are actually going to listen with type + * listenertype. Do not count no_listen ports. Do not count unix + * sockets. */ +static int +count_real_listeners(const smartlist_t *ports, int listenertype) +{ + int n = 0; + SMARTLIST_FOREACH_BEGIN(ports, port_cfg_t *, port) { + if (port->no_listen || port->is_unix_addr) + continue; + if (port->type != listenertype) + continue; + ++n; + } SMARTLIST_FOREACH_END(port); + return n; +} + /** Parse all client port types (Socks, DNS, Trans, NATD) from - * options. On success, set *n_ports_out to the number of - * ports that are listed and return 0. On failure, set *msg to a + * options. On success, set *n_ports_out to the number + * of ports that are listed, update the *Port_set values in + * options, and return 0. On failure, set *msg to a * description of the problem and return -1. * * If validate_only is false, set configured_client_ports to the * new list of ports parsed from options. **/ static int -parse_ports(const or_options_t *options, int validate_only, +parse_ports(or_options_t *options, int validate_only, char **msg, int *n_ports_out) { smartlist_t *ports; @@ -5988,7 +6011,7 @@ parse_ports(const or_options_t *options, int validate_only, *n_ports_out = 0; if (parse_port_config(ports, - options->SocksPort, options->SocksListenAddress, + options->SocksPort_lines, options->SocksListenAddress, "Socks", CONN_TYPE_AP_LISTENER, "127.0.0.1", 9050, CL_PORT_WARN_NONLOCAL|CL_PORT_ALLOW_EXTRA_LISTENADDR) < 0) { @@ -5996,7 +6019,7 @@ parse_ports(const or_options_t *options, int validate_only, goto err; } if (parse_port_config(ports, - options->DNSPort, options->DNSListenAddress, + options->DNSPort_lines, options->DNSListenAddress, "DNS", CONN_TYPE_AP_DNS_LISTENER, "127.0.0.1", 0, CL_PORT_WARN_NONLOCAL) < 0) { @@ -6004,7 +6027,7 @@ parse_ports(const or_options_t *options, int validate_only, goto err; } if (parse_port_config(ports, - options->TransPort, options->TransListenAddress, + options->TransPort_lines, options->TransListenAddress, "Trans", CONN_TYPE_AP_TRANS_LISTENER, "127.0.0.1", 0, CL_PORT_WARN_NONLOCAL) < 0) { @@ -6012,7 +6035,7 @@ parse_ports(const or_options_t *options, int validate_only, goto err; } if (parse_port_config(ports, - options->NATDPort, options->NATDListenAddress, + options->NATDPort_lines, options->NATDListenAddress, "NATD", CONN_TYPE_AP_NATD_LISTENER, "127.0.0.1", 0, CL_PORT_WARN_NONLOCAL) < 0) { @@ -6028,7 +6051,7 @@ parse_ports(const or_options_t *options, int validate_only, control_port_flags |= CL_PORT_FORBID_NONLOCAL; if (parse_port_config(ports, - options->ControlPort, options->ControlListenAddress, + options->ControlPort_lines, options->ControlListenAddress, "Control", CONN_TYPE_CONTROL_LISTENER, "127.0.0.1", 0, control_port_flags) < 0) { @@ -6045,7 +6068,7 @@ parse_ports(const or_options_t *options, int validate_only, } if (! options->ClientOnly) { if (parse_port_config(ports, - options->ORPort, options->ORListenAddress, + options->ORPort_lines, options->ORListenAddress, "OR", CONN_TYPE_OR_LISTENER, "0.0.0.0", 0, CL_PORT_SERVER_OPTIONS) < 0) { @@ -6053,7 +6076,7 @@ parse_ports(const or_options_t *options, int validate_only, goto err; } if (parse_port_config(ports, - options->DirPort, options->DirListenAddress, + options->DirPort_lines, options->DirListenAddress, "Dir", CONN_TYPE_DIR_LISTENER, "0.0.0.0", 0, CL_PORT_SERVER_OPTIONS) < 0) { @@ -6069,6 +6092,25 @@ parse_ports(const or_options_t *options, int validate_only, *n_ports_out = smartlist_len(ports); + retval = 0; + + /* Update the *Port_set options. The !! here is to force a boolean out of + an integer. */ + options->ORPort_set = + !! count_real_listeners(ports, CONN_TYPE_OR_LISTENER); + options->SocksPort_set = + !! count_real_listeners(ports, CONN_TYPE_AP_LISTENER); + options->TransPort_set = + !! count_real_listeners(ports, CONN_TYPE_AP_TRANS_LISTENER); + options->NATDPort_set = + !! count_real_listeners(ports, CONN_TYPE_AP_NATD_LISTENER); + options->ControlPort_set = + !! count_real_listeners(ports, CONN_TYPE_CONTROL_LISTENER); + options->DirPort_set = + !! count_real_listeners(ports, CONN_TYPE_DIR_LISTENER); + options->DNSPort_set = + !! count_real_listeners(ports, CONN_TYPE_AP_DNS_LISTENER); + if (!validate_only) { if (configured_ports) { SMARTLIST_FOREACH(configured_ports, @@ -6079,7 +6121,6 @@ parse_ports(const or_options_t *options, int validate_only, ports = NULL; /* prevent free below. */ } - retval = 0; err: if (ports) { SMARTLIST_FOREACH(ports, port_cfg_t *, p, port_cfg_free(p)); @@ -6620,7 +6661,7 @@ init_libevent(const or_options_t *options) suppress_libevent_log_msg(NULL); tor_check_libevent_version(tor_libevent_get_method(), - get_options()->ORPort != NULL, + server_mode(get_options()), &badness); if (badness) { const char *v = tor_libevent_get_version_str(); diff --git a/src/or/directory.c b/src/or/directory.c index f58aab2..40344e6 100644 --- a/src/or/directory.c +++ b/src/or/directory.c @@ -3732,7 +3732,7 @@ download_status_reset(download_status_t *dls) const int *schedule; size_t schedule_len; - find_dl_schedule_and_len(dls, get_options()->DirPort != NULL, + find_dl_schedule_and_len(dls, get_options()->DirPort_set, &schedule, &schedule_len); dls->n_download_failures = 0; diff --git a/src/or/directory.h b/src/or/directory.h index 584fe84..1ca1c5a 100644 --- a/src/or/directory.h +++ b/src/or/directory.h @@ -80,7 +80,7 @@ time_t download_status_increment_failure(download_status_t *dls, * the optional status code sc. */ #define download_status_failed(dls, sc) \ download_status_increment_failure((dls), (sc), NULL, \ - get_options()->DirPort!=NULL, time(NULL)) + get_options()->DirPort_set, time(NULL)) void download_status_reset(download_status_t *dls); static int download_status_is_ready(download_status_t *dls, time_t now, diff --git a/src/or/dirserv.c b/src/or/dirserv.c index e21f511..f1c9c62 100644 --- a/src/or/dirserv.c +++ b/src/or/dirserv.c @@ -1214,7 +1214,7 @@ directory_fetches_from_authorities(const or_options_t *options) return 1; /* we don't know our IP address; ask an authority. */ refuseunknown = ! router_my_exit_policy_is_reject_star() && should_refuse_unknown_exits(options); - if (options->DirPort == NULL && !refuseunknown) + if (!options->DirPort_set && !refuseunknown) return 0; if (!server_mode(options) || !advertised_server_mode()) return 0; @@ -1250,7 +1250,7 @@ directory_fetches_dir_info_later(const or_options_t *options) int directory_caches_v2_dir_info(const or_options_t *options) { - return options->DirPort != NULL; + return options->DirPort_set; } /** Return true iff we want to fetch and keep certificates for authorities @@ -1259,7 +1259,7 @@ directory_caches_v2_dir_info(const or_options_t *options) int directory_caches_unknown_auth_certs(const or_options_t *options) { - return options->DirPort || options->BridgeRelay; + return options->DirPort_set || options->BridgeRelay; } /** Return 1 if we want to keep descriptors, networkstatuses, etc around @@ -1268,7 +1268,7 @@ directory_caches_unknown_auth_certs(const or_options_t *options) int directory_caches_dir_info(const or_options_t *options) { - if (options->BridgeRelay || options->DirPort) + if (options->BridgeRelay || options->DirPort_set) return 1; if (!server_mode(options) || !advertised_server_mode()) return 0; @@ -1284,7 +1284,7 @@ directory_caches_dir_info(const or_options_t *options) int directory_permits_begindir_requests(const or_options_t *options) { - return options->BridgeRelay != 0 || options->DirPort != NULL; + return options->BridgeRelay != 0 || options->DirPort_set; } /** Return 1 if we want to allow controllers to ask us directory @@ -1293,7 +1293,7 @@ directory_permits_begindir_requests(const or_options_t *options) int directory_permits_controller_requests(const or_options_t *options) { - return options->DirPort != NULL; + return options->DirPort_set; } /** Return 1 if we have no need to fetch new descriptors. This generally diff --git a/src/or/or.h b/src/or/or.h index 3a53e5e..bb9d340 100644 --- a/src/or/or.h +++ b/src/or/or.h @@ -3012,19 +3012,38 @@ typedef struct { int DirAllowPrivateAddresses; char *User; /**< Name of user to run Tor as. */ char *Group; /**< Name of group to run Tor as. */ - config_line_t *ORPort; /**< Ports to listen on for OR connections. */ - config_line_t *SocksPort; /**< Ports to listen on for SOCKS connections. */ + config_line_t *ORPort_lines; /**< Ports to listen on for OR connections. */ + config_line_t *SocksPort_lines; /**< Ports to listen on for SOCKS connections. */ /** Ports to listen on for transparent pf/netfilter connections. */ - config_line_t *TransPort; - config_line_t *NATDPort; /**< Ports to listen on for transparent natd + config_line_t *TransPort_lines; + config_line_t *NATDPort_lines; /**< Ports to listen on for transparent natd * connections. */ - config_line_t *ControlPort; /**< Port to listen on for control + config_line_t *ControlPort_lines; /**< Port to listen on for control * connections. */ config_line_t *ControlSocket; /**< List of Unix Domain Sockets to listen on * for control connections. */ + int ControlSocketsGroupWritable; /**< Boolean: Are control sockets g+rw? */ - config_line_t *DirPort; /**< Port to listen on for directory connections. */ - config_line_t *DNSPort; /**< Port to listen on for DNS requests. */ + config_line_t *DirPort_lines; /**< Port to listen on for directory connections. */ + config_line_t *DNSPort_lines; /**< Port to listen on for DNS requests. */ + + /** @name port booleans + * + * Derived booleans: True iff there is a non-listener port on an AF_INET or + * AF_INET6 address of the given type configured in one of the _lines + * options above. + * + * @{ + */ + unsigned int ORPort_set : 1; + unsigned int SocksPort_set : 1; + unsigned int TransPort_set : 1; + unsigned int NATDPort_set : 1; + unsigned int ControlPort_set : 1; + unsigned int DirPort_set : 1; + unsigned int DNSPort_set : 1; + /**@}*/ + int AssumeReachable; /**< Whether to publish our descriptor regardless. */ int AuthoritativeDir; /**< Boolean: is this an authoritative directory? */ int V1AuthoritativeDir; /**< Boolean: is this an authoritative directory diff --git a/src/or/router.c b/src/or/router.c index 352c456..38f1cdd 100644 --- a/src/or/router.c +++ b/src/or/router.c @@ -797,7 +797,7 @@ int check_whether_dirport_reachable(void) { const or_options_t *options = get_options(); - return !options->DirPort || + return !options->DirPort_set || options->AssumeReachable || net_is_disabled() || can_reach_dir_port; @@ -1115,7 +1115,8 @@ int server_mode(const or_options_t *options) { if (options->ClientOnly) return 0; - return (options->ORPort || options->ORListenAddress); + /* XXXX024 I believe we can kill off ORListenAddress here.*/ + return (options->ORPort_set || options->ORListenAddress); } /** Return true iff we are trying to be a non-bridge server. diff --git a/src/or/routerparse.c b/src/or/routerparse.c index 970353a..3875198 100644 --- a/src/or/routerparse.c +++ b/src/or/routerparse.c @@ -962,7 +962,7 @@ router_parse_runningrouters(const char *str) /* Now that we know the signature is okay, and we have a * publication time, cache the list. */ - if (get_options()->DirPort && !authdir_mode_v1(get_options())) + if (get_options()->DirPort_set && !authdir_mode_v1(get_options())) dirserv_set_cached_directory(str, published_on, 1); r = 0;

1 0

[tor/release-0.2.3] Fix spaces from last patch
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit e1fb3b8d65080c9583451085b43c04e2f7adefcb Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Aug 9 16:02:57 2012 -0400 Fix spaces from last patch --- src/or/config.c | 35 +++++++++++++++++++---------------- src/or/or.h | 10 ++++++---- 2 files changed, 25 insertions(+), 20 deletions(-) diff --git a/src/or/config.c b/src/or/config.c index 7e67895..6163599 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -1653,7 +1653,7 @@ options_act(const or_options_t *old_options) int was_relay = 0; if (options->BridgeRelay) { time_t int_start = time(NULL); - if (config_lines_eq(old_options->ORPort_lines, options->ORPort_lines)) { + if (config_lines_eq(old_options->ORPort_lines,options->ORPort_lines)) { int_start += RELAY_BRIDGE_STATS_DELAY; was_relay = 1; } @@ -4361,8 +4361,10 @@ options_transition_affects_descriptor(const or_options_t *old_options, !config_lines_eq(old_options->ExitPolicy,new_options->ExitPolicy) || old_options->ExitPolicyRejectPrivate != new_options->ExitPolicyRejectPrivate || - !config_lines_eq(old_options->ORPort_lines, new_options->ORPort_lines) || - !config_lines_eq(old_options->DirPort_lines, new_options->DirPort_lines) || + !config_lines_eq(old_options->ORPort_lines, + new_options->ORPort_lines) || + !config_lines_eq(old_options->DirPort_lines, + new_options->DirPort_lines) || old_options->ClientOnly != new_options->ClientOnly || old_options->DisableNetwork != new_options->DisableNetwork || old_options->_PublishServerDescriptor != @@ -6019,26 +6021,26 @@ parse_ports(or_options_t *options, int validate_only, goto err; } if (parse_port_config(ports, - options->DNSPort_lines, options->DNSListenAddress, - "DNS", CONN_TYPE_AP_DNS_LISTENER, - "127.0.0.1", 0, - CL_PORT_WARN_NONLOCAL) < 0) { + options->DNSPort_lines, options->DNSListenAddress, + "DNS", CONN_TYPE_AP_DNS_LISTENER, + "127.0.0.1", 0, + CL_PORT_WARN_NONLOCAL) < 0) { *msg = tor_strdup("Invalid DNSPort/DNSListenAddress configuration"); goto err; } if (parse_port_config(ports, - options->TransPort_lines, options->TransListenAddress, - "Trans", CONN_TYPE_AP_TRANS_LISTENER, - "127.0.0.1", 0, - CL_PORT_WARN_NONLOCAL) < 0) { + options->TransPort_lines, options->TransListenAddress, + "Trans", CONN_TYPE_AP_TRANS_LISTENER, + "127.0.0.1", 0, + CL_PORT_WARN_NONLOCAL) < 0) { *msg = tor_strdup("Invalid TransPort/TransListenAddress configuration"); goto err; } if (parse_port_config(ports, - options->NATDPort_lines, options->NATDListenAddress, - "NATD", CONN_TYPE_AP_NATD_LISTENER, - "127.0.0.1", 0, - CL_PORT_WARN_NONLOCAL) < 0) { + options->NATDPort_lines, options->NATDListenAddress, + "NATD", CONN_TYPE_AP_NATD_LISTENER, + "127.0.0.1", 0, + CL_PORT_WARN_NONLOCAL) < 0) { *msg = tor_strdup("Invalid NatdPort/NatdListenAddress configuration"); goto err; } @@ -6051,7 +6053,8 @@ parse_ports(or_options_t *options, int validate_only, control_port_flags |= CL_PORT_FORBID_NONLOCAL; if (parse_port_config(ports, - options->ControlPort_lines, options->ControlListenAddress, + options->ControlPort_lines, + options->ControlListenAddress, "Control", CONN_TYPE_CONTROL_LISTENER, "127.0.0.1", 0, control_port_flags) < 0) { diff --git a/src/or/or.h b/src/or/or.h index bb9d340..55ad58f 100644 --- a/src/or/or.h +++ b/src/or/or.h @@ -3013,19 +3013,21 @@ typedef struct { char *User; /**< Name of user to run Tor as. */ char *Group; /**< Name of group to run Tor as. */ config_line_t *ORPort_lines; /**< Ports to listen on for OR connections. */ - config_line_t *SocksPort_lines; /**< Ports to listen on for SOCKS connections. */ + /** Ports to listen on for SOCKS connections. */ + config_line_t *SocksPort_lines; /** Ports to listen on for transparent pf/netfilter connections. */ config_line_t *TransPort_lines; config_line_t *NATDPort_lines; /**< Ports to listen on for transparent natd * connections. */ - config_line_t *ControlPort_lines; /**< Port to listen on for control + config_line_t *ControlPort_lines; /**< Ports to listen on for control * connections. */ config_line_t *ControlSocket; /**< List of Unix Domain Sockets to listen on * for control connections. */ int ControlSocketsGroupWritable; /**< Boolean: Are control sockets g+rw? */ - config_line_t *DirPort_lines; /**< Port to listen on for directory connections. */ - config_line_t *DNSPort_lines; /**< Port to listen on for DNS requests. */ + /** Ports to listen on for directory connections. */ + config_line_t *DirPort_lines; + config_line_t *DNSPort_lines; /**< Ports to listen on for DNS requests. */ /** @name port booleans *

1 0

[tor/release-0.2.3] Fix memory leak in dirvote_create_microdescriptor
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit a9eed33111173d9f7c7fbff74ab1573c4c12e634 Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Aug 14 03:06:47 2012 -0400 Fix memory leak in dirvote_create_microdescriptor Found by George, who gets a cookie. --- src/or/dirvote.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/src/or/dirvote.c b/src/or/dirvote.c index dc1ba7e..a7fea0a 100644 --- a/src/or/dirvote.c +++ b/src/or/dirvote.c @@ -3515,7 +3515,7 @@ dirvote_create_microdescriptor(const routerinfo_t *ri) char *key = NULL, *summary = NULL, *family = NULL; size_t keylen; smartlist_t *chunks = smartlist_new(); - char *output; + char *output = NULL; if (crypto_pk_write_public_key_to_string(ri->onion_pkey, &key, &keylen)<0) goto done; @@ -3547,6 +3547,7 @@ dirvote_create_microdescriptor(const routerinfo_t *ri) } done: + tor_free(output); tor_free(key); tor_free(summary); tor_free(family);

1 0

[tor/release-0.2.3] Update description of what we did to upper limit on md size
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit a4fbfa81b3fb732687efcefce851e2cd089ea6c1 Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Aug 14 03:10:14 2012 -0400 Update description of what we did to upper limit on md size Spotted by asn --- changes/bug6404 | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/changes/bug6404 b/changes/bug6404 index 7708148..948f00b 100644 --- a/changes/bug6404 +++ b/changes/bug6404 @@ -1,7 +1,7 @@ o Minor bugfixes: - - Increase the maximum length of microdescriptor we are willing to - generate from 1K to 2K. Occasionally this is needed for routers + - Remove the maximum length of microdescriptor we are willing to + generate. Occasionally this is needed for routers with complex policies or family declarations. Partial fix for bug 6404; fix on 0.2.2.6-alpha.

1 0

[tor/release-0.2.3] Reject attempts to say FooPort and FooPort 0 in the same cfg domain
by arma＠torproject.org 04 Sep '12

04 Sep '12

commit d993b0448508d910be0c26096fe710b13e8af4e7 Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Aug 9 16:13:03 2012 -0400 Reject attempts to say FooPort and FooPort 0 in the same cfg domain --- changes/bug6507 | 8 ++++++++ src/or/config.c | 13 +++++++++++++ 2 files changed, 21 insertions(+), 0 deletions(-) diff --git a/changes/bug6507 b/changes/bug6507 index 5ca0298..89940cb 100644 --- a/changes/bug6507 +++ b/changes/bug6507 @@ -5,3 +5,11 @@ server, even though our new listener code would correctly not open any ORPorts for ORPort 0. Similar bugs in other Port options are also fixed. Fixes bug 6507; bugfix on 0.2.3.3-alpha. + + o Minor features: + + - Detect and reject attempts to specify both 'FooPort' and + 'FooPort 0' in the same configuration domain. (It's still okay + to have a FooPort in your configuration file,and use 'FooPort 0' + on the command line to disable it.) Fixes another case of + bug6507; bugfix on 0.2.3.3-alpha. diff --git a/src/or/config.c b/src/or/config.c index 6163599..639abcd 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -5667,6 +5667,7 @@ parse_port_config(smartlist_t *out, const unsigned forbid_nonlocal = flags & CL_PORT_FORBID_NONLOCAL; const unsigned allow_spurious_listenaddr = flags & CL_PORT_ALLOW_EXTRA_LISTENADDR; + int got_zero_port=0, got_nonzero_port=0; /* FooListenAddress is deprecated; let's make it work like it used to work, * though. */ @@ -5919,6 +5920,11 @@ parse_port_config(smartlist_t *out, } SMARTLIST_FOREACH_END(elt); } + if (port) + got_nonzero_port = 1; + else + got_zero_port = 1; + if (out && port) { port_cfg_t *cfg = tor_malloc_zero(sizeof(port_cfg_t)); tor_addr_copy(&cfg->addr, &addr); @@ -5945,6 +5951,13 @@ parse_port_config(smartlist_t *out, warn_nonlocal_client_ports(out, portname); } + if (got_zero_port && got_nonzero_port) { + log_warn(LD_CONFIG, "You specified a nonzero %sPort along with '%sPort 0' " + "in the same configuration. Did you mean to disable %sPort or " + "not?", portname, portname, portname); + goto err; + } + retval = 0; err: SMARTLIST_FOREACH(elts, char *, cp, tor_free(cp));

1 0