diff --git a/ChangeLog b/ChangeLog index acc6e141b0..5871ddfbfc 100644 --- a/ChangeLog +++ b/ChangeLog @@ -32,6 +32,12 @@ Changes in version 0.2.2.1-alpha - 2009-07-2? - Time and memory units in the configuration file can now be set to fractional units. For example, "2.5 MB" is now a valid value for AccountingMax. + - Certain Tor clients (such as those behind check.torproject.org) may + want to fetch the consensus in an extra early manner. To enable this + a user may now set FetchDirInfoExtraEarly to 1. This also depends on + setting FetchDirInfoEarly to 1. Previous behavior will stay the same + as only certain clients who must have this information sooner should + set this option. o Deprecated and removed features: - The controller no longer accepts the old obsolete "addr-mappings/" diff --git a/doc/tor.1.in b/doc/tor.1.in index 3ac0f92fe2..b6e22310f2 100644 --- a/doc/tor.1.in +++ b/doc/tor.1.in @@ -241,6 +241,13 @@ fetching early. Normal users should leave it off. (Default: 0) .LP .TP +\fBFetchDirInfoExtraEarly \fR\fB0\fR|\fB1\fR\fP +If set to 1, Tor will fetch directory information before other +directory caches. It will attempt to download directory information closer to +the start of the consensus period. Normal users should leave it off. +(Default: 0) +.LP +.TP \fBFetchHidServDescriptors \fR\fB0\fR|\fB1\fR\fP If set to 0, Tor will never fetch any hidden service descriptors from the rendezvous directories. This option is only useful if you're using diff --git a/src/or/config.c b/src/or/config.c index 46d147090b..4590c4eab7 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -215,6 +215,7 @@ static config_var_t _option_vars[] = { V(FirewallPorts, CSV, ""), V(FastFirstHopPK, BOOL, "1"), V(FetchDirInfoEarly, BOOL, "0"), + V(FetchDirInfoExtraEarly, BOOL, "0"), V(FetchServerDescriptors, BOOL, "1"), V(FetchHidServDescriptors, BOOL, "1"), V(FetchUselessDescriptors, BOOL, "0"), @@ -3195,6 +3196,10 @@ options_validate(or_options_t *old_options, or_options_t *options, REJECT("HSAuthorityRecordStats is set but we're not running as " "a hidden service authority."); + if (options->FetchDirInfoExtraEarly && !options->FetchDirInfoEarly) + REJECT("FetchDirInfoExtraEarly requires that you also set " + "FetchDirInfoEarly"); + if (options->ConnLimit <= 0) { r = tor_snprintf(buf, sizeof(buf), "ConnLimit must be greater than 0, but was set to %d", diff --git a/src/or/networkstatus.c b/src/or/networkstatus.c index e78aefc5fa..97353c01da 100644 --- a/src/or/networkstatus.c +++ b/src/or/networkstatus.c @@ -1133,8 +1133,13 @@ update_consensus_networkstatus_fetch_time(time_t now) /* We want to cache the next one at some point after this one * is no longer fresh... */ start = c->fresh_until + CONSENSUS_MIN_SECONDS_BEFORE_CACHING; - /* But only in the first half-interval after that. */ - dl_interval = interval/2; + /* Some clients may need the consensus sooner than others. */ + if (options->FetchDirInfoExtraEarly) { + dl_interval = 60; + } else { + /* But only in the first half-interval after that. */ + dl_interval = interval/2; + } } else { /* We're an ordinary client or a bridge. Give all the caches enough * time to download the consensus. */ diff --git a/src/or/or.h b/src/or/or.h index 445df4d78e..be72750a7b 100644 --- a/src/or/or.h +++ b/src/or/or.h @@ -2452,6 +2452,9 @@ typedef struct { * means directly from the authorities) no matter our other config? */ int FetchDirInfoEarly; + /** Should we fetch our dir info at the start of the consensus period? */ + int FetchDirInfoExtraEarly; + char *VirtualAddrNetwork; /**< Address and mask to hand out for virtual * MAPADDRESS requests. */ int ServerDNSSearchDomains; /**< Boolean: If set, we don't force exit