mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-11 05:33:47 +01:00
Merge remote-tracking branch 'origin/maint-0.2.2'
Conflicts: src/common/compat.h src/or/circuitlist.c src/or/circuituse.c src/or/or.h src/or/rephist.c
This commit is contained in:
commit
ee871e7a0e
7
changes/cbt_hi_res
Normal file
7
changes/cbt_hi_res
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@ -0,0 +1,7 @@
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o Minor features
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- When expiring circuits, use microsecond timers rather than one-second
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timers. This can avoid an unpleasant situation where a circuit is
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launched near the end of one second and expired right near the
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beginning of the next, and prevent fluctuations in circuit timeout
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values.
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4
changes/cbt_parallel_intro
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4
changes/cbt_parallel_intro
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@ -0,0 +1,4 @@
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o Minor features
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- Use computed circuit-build timeouts to decide when to launch
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parallel introdution circuits. (Previously, we would retry
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after 15 seconds.)
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3
changes/zlib_aint_openssl
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3
changes/zlib_aint_openssl
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@ -0,0 +1,3 @@
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o Minor bugfixes
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- When warning about missing zlib development packages, give the
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correct package names. Bugfix on 0.2.0.1-alpha.
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@ -492,10 +492,10 @@ AC_SUBST(TOR_OPENSSL_LIBS)
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dnl ------------------------------------------------------
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dnl Where do you live, zlib? And how do we call you?
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tor_openssl_pkg_redhat="zlib"
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tor_openssl_pkg_debian="zlib1g"
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tor_openssl_devpkg_redhat="zlib-devel"
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tor_openssl_devpkg_debian="zlib1g-dev"
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tor_zlib_pkg_redhat="zlib"
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tor_zlib_pkg_debian="zlib1g"
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tor_zlib_devpkg_redhat="zlib-devel"
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tor_zlib_devpkg_debian="zlib1g-dev"
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TOR_SEARCH_LIBRARY(zlib, $tryzlibdir, [-lz],
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[#include <zlib.h>],
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@ -335,12 +335,47 @@ struct tm *tor_localtime_r(const time_t *timep, struct tm *result);
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struct tm *tor_gmtime_r(const time_t *timep, struct tm *result);
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#endif
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/** Return true iff the tvp is related to uvp according to the relational
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* operator cmp. Recognized values for cmp are ==, <=, <, >=, and >. */
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#define tor_timercmp(tvp, uvp, cmp) \
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(((tvp)->tv_sec == (uvp)->tv_sec) ? \
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((tvp)->tv_usec cmp (uvp)->tv_usec) : \
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((tvp)->tv_sec cmp (uvp)->tv_sec))
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#ifndef timeradd
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/** Replacement for timeradd on platforms that do not have it: sets tvout to
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* the sum of tv1 and tv2. */
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#define timeradd(tv1,tv2,tvout) \
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do { \
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(tvout)->tv_sec = (tv1)->tv_sec + (tv2)->tv_sec; \
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(tvout)->tv_usec = (tv2)->tv_usec + (tv2)->tv_usec; \
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if ((tvout)->tv_usec >= 1000000) { \
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(tvout)->tv_usec -= 1000000; \
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(tvout)->tv_sec++; \
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} \
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} while (0)
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#endif
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#ifndef timersub
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/** Replacement for timersub on platforms that do not have it: sets tvout to
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* tv1 minus tv2. */
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#define timersub(tv1,tv2,tvout) \
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do { \
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(tvout)->tv_sec = (tv1)->tv_sec - (tv2)->tv_sec; \
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(tvout)->tv_usec = (tv2)->tv_usec - (tv2)->tv_usec; \
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if ((tvout)->tv_usec < 0) { \
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(tvout)->tv_usec += 1000000; \
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(tvout)->tv_sec--; \
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} \
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} while (0)
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#endif
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#ifndef timercmp
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/** Replacement for timersub on platforms that do not have it: returns true
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* iff the relational operator "op" makes the expression tv1 op tv2 true.
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*
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* Note that while this definition should work for all boolean opeators, some
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* platforms' native timercmp definitions do not support >=, <=, or ==. So
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* don't use those.
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*/
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#define timercmp(tv1,tv2,op) \
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(((tv1)->tv_sec == (tv2)->tv_sec) ? \
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((tv1)->tv_usec op (tv2)->tv_usec) : \
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((tv1)->tv_sec op (tv2)->tv_sec))
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#endif
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/* ===== File compatibility */
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int tor_open_cloexec(const char *path, int flags, unsigned mode);
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@ -606,10 +606,10 @@ circuit_dump_details(int severity, circuit_t *circ, int conn_array_index,
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const char *type, int this_circid, int other_circid)
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{
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log(severity, LD_CIRC, "Conn %d has %s circuit: circID %d (other side %d), "
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"state %d (%s), born %d:",
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"state %d (%s), born %ld:",
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conn_array_index, type, this_circid, other_circid, circ->state,
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circuit_state_to_string(circ->state),
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(int)circ->timestamp_created.tv_sec);
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(long)circ->timestamp_created.tv_sec);
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if (CIRCUIT_IS_ORIGIN(circ)) { /* circ starts at this node */
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circuit_log_path(severity, LD_CIRC, TO_ORIGIN_CIRCUIT(circ));
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}
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@ -32,7 +32,7 @@ extern circuit_t *global_circuitlist; /* from circuitlist.c */
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/********* END VARIABLES ************/
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static void circuit_expire_old_circuits_clientside(time_t now);
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static void circuit_expire_old_circuits_clientside(void);
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static void circuit_increment_failure_count(void);
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/** Return 1 if <b>circ</b> could be returned by circuit_get_best().
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@ -163,7 +163,7 @@ circuit_is_better(circuit_t *a, circuit_t *b, uint8_t purpose)
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return 1;
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} else {
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if (a->timestamp_dirty ||
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tor_timercmp(&a->timestamp_created, &b->timestamp_created, >))
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timercmp(&a->timestamp_created, &b->timestamp_created, >))
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return 1;
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if (CIRCUIT_IS_ORIGIN(b) &&
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TO_ORIGIN_CIRCUIT(b)->build_state->is_internal)
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@ -205,7 +205,7 @@ circuit_get_best(edge_connection_t *conn, int must_be_open, uint8_t purpose,
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int need_uptime, int need_internal)
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{
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circuit_t *circ, *best=NULL;
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time_t now = time(NULL);
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struct timeval now;
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int intro_going_on_but_too_old = 0;
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tor_assert(conn);
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@ -214,17 +214,16 @@ circuit_get_best(edge_connection_t *conn, int must_be_open, uint8_t purpose,
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purpose == CIRCUIT_PURPOSE_C_INTRODUCE_ACK_WAIT ||
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purpose == CIRCUIT_PURPOSE_C_REND_JOINED);
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tor_gettimeofday(&now);
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for (circ=global_circuitlist;circ;circ = circ->next) {
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if (!circuit_is_acceptable(circ,conn,must_be_open,purpose,
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need_uptime,need_internal,now))
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need_uptime,need_internal,now.tv_sec))
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continue;
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/* XXX022 make this 15 be a function of circuit finishing times we've
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* seen lately, a la Fallon Chen's GSoC work -RD */
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#define REND_PARALLEL_INTRO_DELAY 15
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if (purpose == CIRCUIT_PURPOSE_C_INTRODUCE_ACK_WAIT &&
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!must_be_open && circ->state != CIRCUIT_STATE_OPEN &&
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circ->timestamp_created.tv_sec + REND_PARALLEL_INTRO_DELAY < now) {
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tv_mdiff(&now, &circ->timestamp_created) > circ_times.timeout_ms) {
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intro_going_on_but_too_old = 1;
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continue;
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}
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@ -276,22 +275,38 @@ circuit_conforms_to_options(const origin_circuit_t *circ,
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* at least CircuitBuildTimeout seconds ago.
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*/
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void
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circuit_expire_building(time_t now)
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circuit_expire_building(void)
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{
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circuit_t *victim, *next_circ = global_circuitlist;
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/* circ_times.timeout_ms and circ_times.close_ms are from
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* circuit_build_times_get_initial_timeout() if we haven't computed
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* custom timeouts yet */
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time_t general_cutoff = now - tor_lround(circ_times.timeout_ms/1000);
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time_t begindir_cutoff = now - tor_lround(circ_times.timeout_ms/2000);
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time_t fourhop_cutoff = now - tor_lround(4*circ_times.timeout_ms/3000);
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time_t cannibalize_cutoff = now - tor_lround(circ_times.timeout_ms/2000);
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time_t close_cutoff = now - tor_lround(circ_times.close_ms/1000);
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time_t introcirc_cutoff = begindir_cutoff;
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struct timeval general_cutoff, begindir_cutoff, fourhop_cutoff,
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cannibalize_cutoff, close_cutoff, extremely_old_cutoff;
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struct timeval now;
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struct timeval introcirc_cutoff;
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cpath_build_state_t *build_state;
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tor_gettimeofday(&now);
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#define SET_CUTOFF(target, msec) do { \
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long ms = tor_lround(msec); \
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struct timeval diff; \
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diff.tv_sec = ms / 1000; \
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diff.tv_usec = (ms % 1000) * 1000; \
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timersub(&now, &diff, &target); \
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} while (0)
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SET_CUTOFF(general_cutoff, circ_times.timeout_ms);
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SET_CUTOFF(begindir_cutoff, circ_times.timeout_ms / 2.0);
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SET_CUTOFF(fourhop_cutoff, circ_times.timeout_ms * (4/3.0));
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SET_CUTOFF(cannibalize_cutoff, circ_times.timeout_ms / 2.0);
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SET_CUTOFF(close_cutoff, circ_times.close_ms);
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SET_CUTOFF(extremely_old_cutoff, circ_times.close_ms*2 + 1000);
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introcirc_cutoff = begindir_cutoff;
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while (next_circ) {
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time_t cutoff;
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struct timeval cutoff;
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victim = next_circ;
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next_circ = next_circ->next;
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if (!CIRCUIT_IS_ORIGIN(victim) || /* didn't originate here */
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@ -313,7 +328,7 @@ circuit_expire_building(time_t now)
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else
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cutoff = general_cutoff;
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if (victim->timestamp_created.tv_sec > cutoff)
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if (timercmp(&victim->timestamp_created, &cutoff, >))
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continue; /* it's still young, leave it alone */
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#if 0
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@ -359,7 +374,7 @@ circuit_expire_building(time_t now)
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* because that's set when they switch purposes
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*/
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if (TO_ORIGIN_CIRCUIT(victim)->rend_data ||
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victim->timestamp_dirty > cutoff)
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victim->timestamp_dirty > cutoff.tv_sec)
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continue;
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break;
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case CIRCUIT_PURPOSE_C_REND_READY_INTRO_ACKED:
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@ -368,7 +383,7 @@ circuit_expire_building(time_t now)
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* make an introduction attempt. so timestamp_dirty
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* will reflect the time since the last attempt.
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*/
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if (victim->timestamp_dirty > cutoff)
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if (victim->timestamp_dirty > cutoff.tv_sec)
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continue;
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break;
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}
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@ -408,16 +423,15 @@ circuit_expire_building(time_t now)
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* it off at, we probably had a suspend event along this codepath,
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* and we should discard the value.
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*/
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if (now - victim->timestamp_created.tv_sec >
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2*circ_times.close_ms/1000+1) {
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if (timercmp(&victim->timestamp_created, &extremely_old_cutoff, <)) {
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log_notice(LD_CIRC,
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"Extremely large value for circuit build timeout: %lds. "
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"Assuming clock jump. Purpose %d",
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(long)(now - victim->timestamp_created.tv_sec),
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(long)(now.tv_sec - victim->timestamp_created.tv_sec),
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victim->purpose);
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} else if (circuit_build_times_count_close(&circ_times,
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first_hop_succeeded,
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victim->timestamp_created.tv_sec)) {
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first_hop_succeeded,
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victim->timestamp_created.tv_sec)) {
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circuit_build_times_set_timeout(&circ_times);
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}
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}
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@ -638,7 +652,7 @@ circuit_build_needed_circs(time_t now)
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time_to_new_circuit = now + options->NewCircuitPeriod;
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if (proxy_mode(get_options()))
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addressmap_clean(now);
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circuit_expire_old_circuits_clientside(now);
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circuit_expire_old_circuits_clientside();
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#if 0 /* disable for now, until predict-and-launch-new can cull leftovers */
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circ = circuit_get_youngest_clean_open(CIRCUIT_PURPOSE_C_GENERAL);
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@ -727,17 +741,20 @@ circuit_detach_stream(circuit_t *circ, edge_connection_t *conn)
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* for too long and has no streams on it: mark it for close.
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*/
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static void
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circuit_expire_old_circuits_clientside(time_t now)
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circuit_expire_old_circuits_clientside(void)
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{
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circuit_t *circ;
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time_t cutoff;
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struct timeval cutoff, now;
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tor_gettimeofday(&now);
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cutoff = now;
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if (circuit_build_times_needs_circuits(&circ_times)) {
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/* Circuits should be shorter lived if we need more of them
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* for learning a good build timeout */
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cutoff = now - IDLE_TIMEOUT_WHILE_LEARNING;
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cutoff.tv_sec -= IDLE_TIMEOUT_WHILE_LEARNING;
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} else {
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cutoff = now - get_options()->CircuitIdleTimeout;
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cutoff.tv_sec -= get_options()->CircuitIdleTimeout;
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}
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for (circ = global_circuitlist; circ; circ = circ->next) {
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@ -747,15 +764,15 @@ circuit_expire_old_circuits_clientside(time_t now)
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* on it, mark it for close.
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*/
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if (circ->timestamp_dirty &&
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circ->timestamp_dirty + get_options()->MaxCircuitDirtiness < now &&
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circ->timestamp_dirty + get_options()->MaxCircuitDirtiness < now.tv_sec &&
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!TO_ORIGIN_CIRCUIT(circ)->p_streams /* nothing attached */ ) {
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log_debug(LD_CIRC, "Closing n_circ_id %d (dirty %d secs ago, "
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log_debug(LD_CIRC, "Closing n_circ_id %d (dirty %ld sec ago, "
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"purpose %d)",
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circ->n_circ_id, (int)(now - circ->timestamp_dirty),
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circ->n_circ_id, (long)(now.tv_sec - circ->timestamp_dirty),
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circ->purpose);
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circuit_mark_for_close(circ, END_CIRC_REASON_FINISHED);
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} else if (!circ->timestamp_dirty && circ->state == CIRCUIT_STATE_OPEN) {
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if (circ->timestamp_created.tv_sec < cutoff) {
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if (timercmp(&circ->timestamp_created, &cutoff, <)) {
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if (circ->purpose == CIRCUIT_PURPOSE_C_GENERAL ||
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circ->purpose == CIRCUIT_PURPOSE_C_MEASURE_TIMEOUT ||
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circ->purpose == CIRCUIT_PURPOSE_S_ESTABLISH_INTRO ||
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@ -764,8 +781,8 @@ circuit_expire_old_circuits_clientside(time_t now)
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circ->purpose <= CIRCUIT_PURPOSE_C_REND_READY_INTRO_ACKED) ||
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circ->purpose == CIRCUIT_PURPOSE_S_CONNECT_REND) {
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log_debug(LD_CIRC,
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"Closing circuit that has been unused for %ld seconds.",
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(long)(now - circ->timestamp_created.tv_sec));
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"Closing circuit that has been unused for %ld msec.",
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tv_mdiff(&circ->timestamp_created, &now));
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circuit_mark_for_close(circ, END_CIRC_REASON_FINISHED);
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} else if (!TO_ORIGIN_CIRCUIT(circ)->is_ancient) {
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/* Server-side rend joined circuits can end up really old, because
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@ -777,9 +794,9 @@ circuit_expire_old_circuits_clientside(time_t now)
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circ->purpose != CIRCUIT_PURPOSE_S_INTRO) {
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log_notice(LD_CIRC,
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"Ancient non-dirty circuit %d is still around after "
|
||||
"%ld seconds. Purpose: %d",
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"%ld milliseconds. Purpose: %d",
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||||
TO_ORIGIN_CIRCUIT(circ)->global_identifier,
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||||
(long)(now - circ->timestamp_created.tv_sec),
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tv_mdiff(&circ->timestamp_created, &now),
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circ->purpose);
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||||
/* FFFF implement a new circuit_purpose_to_string() so we don't
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* just print out a number for circ->purpose */
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||||
|
@ -12,7 +12,7 @@
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#ifndef _TOR_CIRCUITUSE_H
|
||||
#define _TOR_CIRCUITUSE_H
|
||||
|
||||
void circuit_expire_building(time_t now);
|
||||
void circuit_expire_building(void);
|
||||
void circuit_remove_handled_ports(smartlist_t *needed_ports);
|
||||
int circuit_stream_is_being_handled(edge_connection_t *conn, uint16_t port,
|
||||
int min);
|
||||
|
@ -1344,7 +1344,9 @@ run_scheduled_events(time_t now)
|
||||
* We do this before step 4, so it can try building more if
|
||||
* it's not comfortable with the number of available circuits.
|
||||
*/
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||||
circuit_expire_building(now);
|
||||
/* XXXX022 If our circuit build timeout is much lower than a second, maybe
|
||||
we should do this more often? */
|
||||
circuit_expire_building();
|
||||
|
||||
/** 3b. Also look at pending streams and prune the ones that 'began'
|
||||
* a long time ago but haven't gotten a 'connected' yet.
|
||||
|
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