tor-commits April 2011

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[tor/release-0.2.2] Merge branch 'maint-0.2.2' into release-0.2.2
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit 80466eb21531c2d47e0cb6d7163492c16cf608ef Merge: 39cc300 4cbbb92 Author: Roger Dingledine <arma(a)torproject.org> Date: Fri Apr 8 17:01:24 2011 -0400 Merge branch 'maint-0.2.2' into release-0.2.2 changes/osx_forgotten_compilefix | 4 ++++ changes/win_tmp_dir | 4 ++++ src/common/log.c | 11 ++++++++++- src/or/rephist.c | 19 ++++++++++++++++--- src/test/test.c | 14 ++++++++++---- 5 files changed, 44 insertions(+), 8 deletions(-)

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[tor/release-0.2.2] Fix up some cell-queue stats issues in rephist.c
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit 71fb2af62c0a60fee94f984b782531a5d492b055 Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Apr 7 14:56:50 2011 -0400 Fix up some cell-queue stats issues in rephist.c - Document the structure and variables. - Make circuits_for_buffer_stats into a static variable. - Don't die horribly if interval_length is 0. - Remove the unused local_circ_id field. - Reorder the fields of circ_buffer_stats_t for cleaner alignment layout. --- src/or/rephist.c | 13 ++++++++++--- 1 files changed, 10 insertions(+), 3 deletions(-) diff --git a/src/or/rephist.c b/src/or/rephist.c index e56ce9e..74e156f 100644 --- a/src/or/rephist.c +++ b/src/or/rephist.c @@ -2330,14 +2330,19 @@ rep_hist_buffer_stats_init(time_t now) start_of_buffer_stats_interval = now; } +/** Statistics from a single circuit. Collected when the circuit closes, or + * when we flush statistics to disk. */ typedef struct circ_buffer_stats_t { - uint32_t processed_cells; + /** Average number of cells in the circuit's queue */ double mean_num_cells_in_queue; + /** Average time a cell waits in the queue. */ double mean_time_cells_in_queue; - uint32_t local_circ_id; + /** Total number of cells sent over this circuit */ + uint32_t processed_cells; } circ_buffer_stats_t; -smartlist_t *circuits_for_buffer_stats = NULL; +/** List of circ_buffer_stats_t. */ +static smartlist_t *circuits_for_buffer_stats = NULL; /** Remember cell statistics for circuit <b>circ</b> at time * <b>end_of_interval</b> and reset cell counters in case the circuit @@ -2361,6 +2366,8 @@ rep_hist_buffer_stats_add_circ(circuit_t *circ, time_t end_of_interval) circ->timestamp_created.tv_sec : start_of_buffer_stats_interval; interval_length = (int) (end_of_interval - start_of_interval); + if (interval_length <= 0) + return; stat = tor_malloc_zero(sizeof(circ_buffer_stats_t)); stat->processed_cells = orcirc->processed_cells; /* 1000.0 for s -> ms; 2.0 because of app-ward and exit-ward queues */

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[tor/release-0.2.2] Merge branch 'bug2373' into maint-0.2.2
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit e247705afefaa0f32ccbc43185f98fc65f041af1 Merge: 70e0291 1be1221 Author: Nick Mathewson <nickm(a)torproject.org> Date: Fri Apr 8 13:35:26 2011 -0400 Merge branch 'bug2373' into maint-0.2.2 src/common/log.c | 11 ++++++++++- src/or/rephist.c | 19 ++++++++++++++++--- 2 files changed, 26 insertions(+), 4 deletions(-)

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[tor/release-0.2.2] Free pending_cb_messages on exit
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit 1be12213857e3c5068107f4df047cea03b6462e8 Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Apr 7 15:25:33 2011 -0400 Free pending_cb_messages on exit --- src/common/log.c | 11 ++++++++++- 1 files changed, 10 insertions(+), 1 deletions(-) diff --git a/src/common/log.c b/src/common/log.c index 28d0029..d14563c 100644 --- a/src/common/log.c +++ b/src/common/log.c @@ -363,7 +363,7 @@ logv(int severity, log_domain_mask_t domain, const char *funcname, continue; } else if (lf->callback) { if (domain & LD_NOCB) { - if (!callbacks_deferred) { + if (!callbacks_deferred && pending_cb_messages) { pending_cb_message_t *msg = tor_malloc(sizeof(pending_cb_message_t)); msg->severity = severity; msg->domain = domain; @@ -512,9 +512,12 @@ void logs_free_all(void) { logfile_t *victim, *next; + smartlist_t *messages; LOCK_LOGS(); next = logfiles; logfiles = NULL; + messages = pending_cb_messages; + pending_cb_messages = NULL; UNLOCK_LOGS(); while (next) { victim = next; @@ -524,6 +527,12 @@ logs_free_all(void) } tor_free(appname); + SMARTLIST_FOREACH(messages, pending_cb_message_t *, msg, { + tor_free(msg->msg); + tor_free(msg); + }); + smartlist_free(messages); + /* We _could_ destroy the log mutex here, but that would screw up any logs * that happened between here and the end of execution. */ }

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[tor/release-0.2.2] Use GetTempDir instead of hardcoded path to c:\windows\tmp for unittests
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit 70e02914682eb1959d8b385f76b5acf7486158cc Author: Gisle Vanem <gvanem(a)broadpark.no> Date: Thu Apr 7 18:34:11 2011 -0400 Use GetTempDir instead of hardcoded path to c:\windows\tmp for unittests --- changes/win_tmp_dir | 4 ++++ src/test/test.c | 14 ++++++++++---- 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/changes/win_tmp_dir b/changes/win_tmp_dir new file mode 100644 index 0000000..13f6e7f --- /dev/null +++ b/changes/win_tmp_dir @@ -0,0 +1,4 @@ + o Unit tests: + - Use GetTempDir to find the proper temporary directory location on + Windows when generating temporary files for the unit tests. Patch + by Gisle Vanem. diff --git a/src/test/test.c b/src/test/test.c index f5b6a22..9b24a99 100644 --- a/src/test/test.c +++ b/src/test/test.c @@ -84,10 +84,16 @@ setup_directory(void) if (is_setup) return; #ifdef MS_WINDOWS - // XXXX - tor_snprintf(temp_dir, sizeof(temp_dir), - "c:\\windows\\temp\\tor_test_%d", (int)getpid()); - r = mkdir(temp_dir); + { + char buf[MAX_PATH]; + const char *tmp = buf; + /* If this fails, we're probably screwed anyway */ + if (!GetTempPath(sizeof(buf),buf)) + tmp = "c:\\windows\\temp"; + tor_snprintf(temp_dir, sizeof(temp_dir), + "%s\\tor_test_%d", tmp, (int)getpid()); + r = mkdir(temp_dir); + } #else tor_snprintf(temp_dir, sizeof(temp_dir), "/tmp/tor_test_%d", (int) getpid()); r = mkdir(temp_dir, 0700);

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[tor/release-0.2.2] Free circuits_for_buffer_stats on shutdown
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit 403b6cfdedee7ebc8fe0b5d1c187e8ae3611aec1 Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Apr 7 14:59:28 2011 -0400 Free circuits_for_buffer_stats on shutdown --- src/or/rephist.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/src/or/rephist.c b/src/or/rephist.c index 74e156f..9b7eefe 100644 --- a/src/or/rephist.c +++ b/src/or/rephist.c @@ -2545,5 +2545,11 @@ rep_hist_free_all(void) tor_free(exit_streams); built_last_stability_doc_at = 0; predicted_ports_free(); + if (circuits_for_buffer_stats) { + SMARTLIST_FOREACH(circuits_for_buffer_stats, circ_buffer_stats_t *, s, + tor_free(s)); + smartlist_free(circuits_for_buffer_stats); + circuits_for_buffer_stats = NULL; + } }

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[tor/maint-0.2.2] Add a changes file for the osx 10.6 compile fix
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit 4cbbb92e7fc7c9c4d374b35211c216a5419e3da2 Author: Sebastian Hahn <sebastian(a)torproject.org> Date: Fri Apr 8 22:56:28 2011 +0200 Add a changes file for the osx 10.6 compile fix We forgot to put it into 0.2.2.24-alpha. --- changes/osx_forgotten_compilefix | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/changes/osx_forgotten_compilefix b/changes/osx_forgotten_compilefix new file mode 100644 index 0000000..754e09c --- /dev/null +++ b/changes/osx_forgotten_compilefix @@ -0,0 +1,4 @@ + o Minor bugfixes: + - Added a forgotten cast that caused a compile warning on OS X 10.6. Bugfix + on 0.2.2.24-alpha. +

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[tor/release-0.2.2] fold in changes entries so far
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit 39cc300303993628afa1e067538cbd7d319f46b0 Author: Roger Dingledine <arma(a)torproject.org> Date: Fri Apr 8 16:54:50 2011 -0400 fold in changes entries so far --- ChangeLog | 36 ++++++++++++++++++++++++++++++++++++ changes/bug539_removal | 6 ------ changes/connect_err_reporting | 6 ------ changes/count_overflow | 5 ----- changes/feature2711 | 4 ---- changes/full_ap_circuits | 6 ------ changes/kill_ftime | 7 ------- changes/noroute | 5 ----- 8 files changed, 36 insertions(+), 39 deletions(-) diff --git a/ChangeLog b/ChangeLog index 70afe71..ce68ccb 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,39 @@ +Changes in version 0.2.2.25-alpha - 2011-04-?? + o Major features: + - Export GeoIP information on usage to bridge controller even if + we have not yet been running for 24 hours. + + o Minor bugfixes: + - Be more careful about reporting the correct error from a failed + connect() system call. Under some circumstances, it was possible to + look at an incorrect value for errno when sending the end reason. + Bugfix on 0.1.0.1-rc. + - Correctly handle an "impossible" overflow cases in connection + byte counting, where we write or read more than 4GB on an edge + connection in single second. Bugfix on 0.1.2.8-beta. + - When a client finds that an origin circuit has run out of 16-bit + stream IDs, we now mark it as unusable for new streams. Previously, + we would try to close the entire circuit. Bugfix on Tor 0.0.6. + + o Minor features: + - Send END_STREAM_REASON_NOROUTE in response to EHOSTUNREACH errors. + Clients before 0.2.1.27 didn't handle NOROUTE correctly, but such + clients are already deprecated because of security bugs. + + o Code simplification and refactoring: + - Removed workaround code to handle directory responses from + servers that had bug 539 (they would send HTTP status 503 + responses _and_ send a body too). Since only server versions before + 0.2.0.16-alpha/0.1.2.19 were affected, there is no longer reason + to keep the workaround in place. + - Remove the old 'fuzzy time' logic. It was supposed to be used + for handling calculations where we have a known amount of clock + skew and an allowed amount of unknown skew. But we only used it + in three places, and we never adjusted the known/unknown skew + values. This is still something we might want to do someday, + but if we do, we'll want to do it differently. + + Changes in version 0.2.2.24-alpha - 2011-04-08 Tor 0.2.2.24-alpha fixes a variety of bugs, including a big bug that prevented Tor clients from effectively using "multihomed" bridges, diff --git a/changes/bug539_removal b/changes/bug539_removal deleted file mode 100644 index dbff43d..0000000 --- a/changes/bug539_removal +++ /dev/null @@ -1,6 +0,0 @@ - o Removed code - - Removed workaround code to handle directory responses from - servers that had bug 539 (they would send HTTP status 503 - responses _and_ send a body too). Since only server versions - before 0.2.0.16-alpha/0.1.2.19 were affected, there is no longer - reason to keep the workaround in place. diff --git a/changes/connect_err_reporting b/changes/connect_err_reporting deleted file mode 100644 index 61a46b6..0000000 --- a/changes/connect_err_reporting +++ /dev/null @@ -1,6 +0,0 @@ - o Minor bugfixes: - - Be more careful about reporting the correct error from a failed - connect() operation. Under some circumstances, it was possible to - look at an incorrect value for errno when sending the end reason. - Bugfix on Tor-0.1.0.1-rc. - diff --git a/changes/count_overflow b/changes/count_overflow deleted file mode 100644 index f302ff2..0000000 --- a/changes/count_overflow +++ /dev/null @@ -1,5 +0,0 @@ - o Minor bugfixes: - - Correctly handle an "impossible" overflow cases in connection - byte counting, where we write or read more than 4GB on an edge - connection in single second. Bugfix on 0.1.2.8-beta. - diff --git a/changes/feature2711 b/changes/feature2711 deleted file mode 100644 index 7cdcfbf..0000000 --- a/changes/feature2711 +++ /dev/null @@ -1,4 +0,0 @@ - o Minor features - - Export GeoIP information on usage to bridge controller even if we have - not yet been running for 24 hours. - diff --git a/changes/full_ap_circuits b/changes/full_ap_circuits deleted file mode 100644 index 379a1a1..0000000 --- a/changes/full_ap_circuits +++ /dev/null @@ -1,6 +0,0 @@ - o Minor bugfixes - - When a client finds that an origin circuit has run out of 16-bit - stream IDs, we now mark it as unusable for new streams. - Previously, we would try to close the entire circuit. Bugfix on - Tor version 0.0.6. - diff --git a/changes/kill_ftime b/changes/kill_ftime deleted file mode 100644 index 47f4769..0000000 --- a/changes/kill_ftime +++ /dev/null @@ -1,7 +0,0 @@ - o Code simplification and refactoring - - Remove the old 'fuzzy time' logic. It was supposed to be used - for handling calculations where we have a known amount of clock - skew and an allowed amount of unknown skew. But we only used it - in three places, and we never adjusted the known/unknown skew - values. This is still something we might want to do someday, - but if we do, we'll want to do it differently. diff --git a/changes/noroute b/changes/noroute deleted file mode 100644 index 644deec..0000000 --- a/changes/noroute +++ /dev/null @@ -1,5 +0,0 @@ - - Minor features - - Send END_STREAM_REASON_NOROUTE in response to EHOSTUNREACH errors. - Clients before 0.2.1.27 didn't handle NOROUTE correctly, but - such clients are already deprecated because of security bugs. -

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[tor/release-0.2.2] Fix a compile warning on OS X 10.6
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit 286d44402e829488abe802efd1607eabbc98f1d1 Author: Sebastian Hahn <sebastian(a)torproject.org> Date: Thu Apr 7 05:30:49 2011 +0200 Fix a compile warning on OS X 10.6 --- src/or/circuituse.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/or/circuituse.c b/src/or/circuituse.c index 447ec84..3d5db98 100644 --- a/src/or/circuituse.c +++ b/src/or/circuituse.c @@ -291,7 +291,7 @@ circuit_expire_building(void) long ms = tor_lround(msec); \ struct timeval diff; \ diff.tv_sec = ms / 1000; \ - diff.tv_usec = (ms % 1000) * 1000; \ + diff.tv_usec = (int)((ms % 1000) * 1000); \ timersub(&now, &diff, &target); \ } while (0)

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[tor/release-0.2.2] Allow controllers a more up-to-date view of bridge usage.
by arma＠torproject.org 08 Apr '11

08 Apr '11

commit 118d8ffdcb74137a36d22928ce6f46897809391e Author: Nick Mathewson <nickm(a)torproject.org> Date: Tue Mar 15 22:39:22 2011 -0400 Allow controllers a more up-to-date view of bridge usage. Instead of answering GETINFO requests about our geoip usage only after running for 24 hours, this patch makes us answer GETINFO requests immediately. We still round and quantize as before. Implements bug2711. Also, refactor the heck out of the bridge usage formatting code. No longer should we need to do a generate-parse-and-regenerate cycle to get the controller string, and that lets us simplify the code a lot. --- changes/feature2711 | 4 + src/or/control.c | 4 +- src/or/geoip.c | 172 ++++++++++++++++++++++++++++----------------------- src/or/geoip.h | 2 +- 4 files changed, 101 insertions(+), 81 deletions(-) diff --git a/changes/feature2711 b/changes/feature2711 new file mode 100644 index 0000000..7cdcfbf --- /dev/null +++ b/changes/feature2711 @@ -0,0 +1,4 @@ + o Minor features + - Export GeoIP information on usage to bridge controller even if we have + not yet been running for 24 hours. + diff --git a/src/or/control.c b/src/or/control.c index fb9c1ae..8f3af0b 100644 --- a/src/or/control.c +++ b/src/or/control.c @@ -1785,12 +1785,12 @@ getinfo_helper_events(control_connection_t *control_conn, "information", question); } } else if (!strcmp(question, "status/clients-seen")) { - const char *bridge_stats = geoip_get_bridge_stats_controller(time(NULL)); + char *bridge_stats = geoip_get_bridge_stats_controller(time(NULL)); if (!bridge_stats) { *errmsg = "No bridge-client stats available"; return -1; } - *answer = tor_strdup(bridge_stats); + *answer = bridge_stats; } else { return 0; } diff --git a/src/or/geoip.c b/src/or/geoip.c index 654241c..28f570a 100644 --- a/src/or/geoip.c +++ b/src/or/geoip.c @@ -1083,14 +1083,14 @@ geoip_bridge_stats_term(void) start_of_bridge_stats_interval = 0; } -/** Parse the bridge statistics as they are written to extra-info - * descriptors for being returned to controller clients. Return the - * controller string if successful, or NULL otherwise. */ -static char * -parse_bridge_stats_controller(const char *stats_str, time_t now) +/** Validate a bridge statistics string as it would be written to a + * current extra-info descriptor. Return 1 if the string is valid and + * recent enough, or 0 otherwise. */ +static int +validate_bridge_stats(const char *stats_str, time_t now) { char stats_end_str[ISO_TIME_LEN+1], stats_start_str[ISO_TIME_LEN+1], - *controller_str, *eos, *eol, *summary; + *eos; const char *BRIDGE_STATS_END = "bridge-stats-end "; const char *BRIDGE_IPS = "bridge-ips "; @@ -1104,63 +1104,90 @@ parse_bridge_stats_controller(const char *stats_str, time_t now) "bridge-stats-end YYYY-MM-DD HH:MM:SS (N s)" */ tmp = find_str_at_start_of_line(stats_str, BRIDGE_STATS_END); if (!tmp) - return NULL; + return 0; tmp += strlen(BRIDGE_STATS_END); if (strlen(tmp) < ISO_TIME_LEN + 6) - return NULL; + return 0; strlcpy(stats_end_str, tmp, sizeof(stats_end_str)); if (parse_iso_time(stats_end_str, &stats_end_time) < 0) - return NULL; + return 0; if (stats_end_time < now - (25*60*60) || stats_end_time > now + (1*60*60)) - return NULL; + return 0; seconds = (int)strtol(tmp + ISO_TIME_LEN + 2, &eos, 10); if (!eos || seconds < 23*60*60) - return NULL; + return 0; format_iso_time(stats_start_str, stats_end_time - seconds); /* Parse: "bridge-ips CC=N,CC=N,..." */ tmp = find_str_at_start_of_line(stats_str, BRIDGE_IPS); - if (tmp) { - tmp += strlen(BRIDGE_IPS); - tmp = eat_whitespace_no_nl(tmp); - eol = strchr(tmp, '\n'); - if (eol) - summary = tor_strndup(tmp, eol-tmp); - else - summary = tor_strdup(tmp); - } else { + if (!tmp) { /* Look if there is an empty "bridge-ips" line */ tmp = find_str_at_start_of_line(stats_str, BRIDGE_IPS_EMPTY_LINE); if (!tmp) - return NULL; - summary = tor_strdup(""); + return 0; } - tor_asprintf(&controller_str, - "TimeStarted=\"%s\" CountrySummary=%s", - stats_start_str, summary); - tor_free(summary); - return controller_str; + return 1; } /** Most recent bridge statistics formatted to be written to extra-info * descriptors. */ static char *bridge_stats_extrainfo = NULL; -/** Most recent bridge statistics formatted to be returned to controller - * clients. */ -static char *bridge_stats_controller = NULL; +/** Return a newly allocated string holding our bridge usage stats by country + * in a format suitable for inclusion in an extrainfo document. Return NULL on + * failure. */ +static char * +format_bridge_stats_extrainfo(time_t now) +{ + char *out = NULL, *data = NULL; + long duration = now - start_of_bridge_stats_interval; + char written[ISO_TIME_LEN+1]; + + if (duration < 0) + return NULL; + + format_iso_time(written, now); + data = geoip_get_client_history(GEOIP_CLIENT_CONNECT); + + tor_asprintf(&out, + "bridge-stats-end %s (%ld s)\n" + "bridge-ips %s\n", + written, duration, + data ? data : ""); + tor_free(data); + + return out; +} + +/** Return a newly allocated string holding our bridge usage stats by country + * in a format suitable for the answer to a controller request. Return NULL on + * failure. */ +static char * +format_bridge_stats_controller(time_t now) +{ + char *out = NULL, *data = NULL; + char started[ISO_TIME_LEN+1]; + (void) now; + + format_iso_time(started, start_of_bridge_stats_interval); + data = geoip_get_client_history(GEOIP_CLIENT_CONNECT); + + tor_asprintf(&out, + "TimeStarted=\"%s\" CountrySummary=%s", + started, data ? data : ""); + tor_free(data); + return out; +} /** Write bridge statistics to $DATADIR/stats/bridge-stats and return * when we should next try to write statistics. */ time_t geoip_bridge_stats_write(time_t now) { - char *statsdir = NULL, *filename = NULL, *data = NULL, - written[ISO_TIME_LEN+1], *out = NULL, *controller_str; - size_t len; + char *filename = NULL, *val = NULL, *statsdir = NULL; /* Check if 24 hours have passed since starting measurements. */ if (now < start_of_bridge_stats_interval + WRITE_STATS_INTERVAL) @@ -1169,64 +1196,54 @@ geoip_bridge_stats_write(time_t now) /* Discard all items in the client history that are too old. */ geoip_remove_old_clients(start_of_bridge_stats_interval); + /* Generate formatted string */ + val = format_bridge_stats_extrainfo(now); + if (val == NULL) + goto done; + + /* Update the stored value. */ + tor_free(bridge_stats_extrainfo); + bridge_stats_extrainfo = val; + start_of_bridge_stats_interval = now; + + /* Write it to disk. */ statsdir = get_datadir_fname("stats"); if (check_private_dir(statsdir, CPD_CREATE) < 0) goto done; filename = get_datadir_fname2("stats", "bridge-stats"); - data = geoip_get_client_history(GEOIP_CLIENT_CONNECT); - format_iso_time(written, now); - len = strlen("bridge-stats-end (999999 s)\nbridge-ips \n") + - ISO_TIME_LEN + (data ? strlen(data) : 0) + 42; - out = tor_malloc(len); - if (tor_snprintf(out, len, "bridge-stats-end %s (%u s)\nbridge-ips %s\n", - written, (unsigned) (now - start_of_bridge_stats_interval), - data ? data : "") < 0) - goto done; - write_str_to_file(filename, out, 0); - controller_str = parse_bridge_stats_controller(out, now); - if (!controller_str) - goto done; - start_of_bridge_stats_interval = now; - tor_free(bridge_stats_extrainfo); - tor_free(bridge_stats_controller); - bridge_stats_extrainfo = out; - out = NULL; - bridge_stats_controller = controller_str; - control_event_clients_seen(controller_str); + + write_str_to_file(filename, bridge_stats_extrainfo, 0); + + /* Tell the controller, "hey, there are clients!" */ + { + char *controller_str = format_bridge_stats_controller(now); + if (controller_str) + control_event_clients_seen(controller_str); + tor_free(controller_str); + } done: tor_free(filename); tor_free(statsdir); - tor_free(data); - tor_free(out); - return start_of_bridge_stats_interval + - WRITE_STATS_INTERVAL; + + return start_of_bridge_stats_interval + WRITE_STATS_INTERVAL; } /** Try to load the most recent bridge statistics from disk, unless we - * have finished a measurement interval lately. */ + * have finished a measurement interval lately, and check whether they + * are still recent enough. */ static void load_bridge_stats(time_t now) { - char *statsdir, *fname=NULL, *contents, *controller_str; + char *fname, *contents; if (bridge_stats_extrainfo) return; - statsdir = get_datadir_fname("stats"); - if (check_private_dir(statsdir, CPD_CREATE) < 0) - goto done; + fname = get_datadir_fname2("stats", "bridge-stats"); contents = read_file_to_str(fname, RFTS_IGNORE_MISSING, NULL); - if (contents) { - controller_str = parse_bridge_stats_controller(contents, now); - if (controller_str) { - bridge_stats_extrainfo = contents; - bridge_stats_controller = controller_str; - } else { - tor_free(contents); - } - } - done: + if (contents && validate_bridge_stats(contents, now)) + bridge_stats_extrainfo = contents; + tor_free(fname); - tor_free(statsdir); } /** Return most recent bridge statistics for inclusion in extra-info @@ -1238,13 +1255,12 @@ geoip_get_bridge_stats_extrainfo(time_t now) return bridge_stats_extrainfo; } -/** Return most recent bridge statistics to be returned to controller - * clients, or NULL if we don't have recent bridge statistics. */ -const char * +/** Return a new string containing the recent bridge statistics to be returned + * to controller clients, or NULL if we don't have any bridge statistics. */ +char * geoip_get_bridge_stats_controller(time_t now) { - load_bridge_stats(now); - return bridge_stats_controller; + return format_bridge_stats_controller(now); } /** Start time of entry stats or 0 if we're not collecting entry diff --git a/src/or/geoip.h b/src/or/geoip.h index bafbeea..24f7c5b 100644 --- a/src/or/geoip.h +++ b/src/or/geoip.h @@ -51,7 +51,7 @@ void geoip_bridge_stats_init(time_t now); time_t geoip_bridge_stats_write(time_t now); void geoip_bridge_stats_term(void); const char *geoip_get_bridge_stats_extrainfo(time_t); -const char *geoip_get_bridge_stats_controller(time_t); +char *geoip_get_bridge_stats_controller(time_t); #endif

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tor-commits April 2011