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Changing MaxAdvertisedBW may not need a republish

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Relays no longer publish a new server descriptor if they change
their MaxAdvertisedBandwidth config option but it doesn't end up
changing their advertised bandwidth numbers. Bugfix on 0.2.0.28-rc;
fixes bug 1026. Patch from Sebastian.
This commit is contained in:
Sebastian Hahn 2009-07-07 18:04:00 +02:00 committed by Roger Dingledine
parent a73acdd46f
commit 3e45445104
4 changed files with 37 additions and 17 deletions
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4
ChangeLog
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@ -10,6 +10,10 @@ Changes in version 0.2.1.19 - 2009-07-??
and confuse fewer users.
o Minor bugfixes:
- Relays no longer publish a new server descriptor if they change
their MaxAdvertisedBandwidth config option but it doesn't end up
changing their advertised bandwidth numbers. Bugfix on 0.2.0.28-rc;
fixes bug 1026. Patch from Sebastian.
- Avoid leaking memory every time we get a create cell but we have
so many already queued that we refuse it. Bugfix on 0.2.0.19-alpha;
fixes bug 1034. Reported by BarkerJr.

35
src/or/config.c
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@ -1222,6 +1222,30 @@ options_need_geoip_info(or_options_t *options, const char **reason_out)
return bridge_usage || routerset_usage;
}
/** Return the bandwidthrate that we are going to report to the authorities
* based on the config options. */
int
get_effective_bwrate(or_options_t *options)
{
int bw = (int)options->BandwidthRate;
if (bw > options->MaxAdvertisedBandwidth)
bw = (int)options->MaxAdvertisedBandwidth;
if (options->RelayBandwidthRate > 0 && bw > options->RelayBandwidthRate)
bw = (int)options->RelayBandwidthRate;
return bw;
}
/** Return the bandwidthburst that we are going to report to the authorities
* based on the config options. */
int
get_effective_bwburst(or_options_t *options)
{
int bw = (int)options->BandwidthBurst;
if (options->RelayBandwidthBurst > 0 && bw > options->RelayBandwidthBurst)
bw = (int)options->RelayBandwidthBurst;
return bw;
}
/** Fetch the active option list, and take actions based on it. All of the
* things we do should survive being done repeatedly. If present,
* <b>old_options</b> contains the previous value of the options.
@ -3744,9 +3768,7 @@ options_transition_affects_descriptor(or_options_t *old_options,
or_options_t *new_options)
{
/* XXX We can be smarter here. If your DirPort isn't being
* published and you just turned it off, no need to republish. If
* you changed your bandwidthrate but maxadvertisedbandwidth still
* trumps, no need to republish. Etc. */
* published and you just turned it off, no need to republish. Etc. */
if (!opt_streq(old_options->DataDirectory, new_options->DataDirectory) ||
!opt_streq(old_options->Nickname,new_options->Nickname) ||
!opt_streq(old_options->Address,new_options->Address) ||
@ -3759,10 +3781,9 @@ options_transition_affects_descriptor(or_options_t *old_options,
old_options->NoPublish != new_options->NoPublish ||
old_options->_PublishServerDescriptor !=
new_options->_PublishServerDescriptor ||
old_options->BandwidthRate != new_options->BandwidthRate ||
old_options->BandwidthBurst != new_options->BandwidthBurst ||
old_options->MaxAdvertisedBandwidth !=
new_options->MaxAdvertisedBandwidth ||
get_effective_bwrate(old_options) != get_effective_bwrate(new_options) ||
get_effective_bwburst(old_options) !=
get_effective_bwburst(new_options) ||
!opt_streq(old_options->ContactInfo, new_options->ContactInfo) ||
!opt_streq(old_options->MyFamily, new_options->MyFamily) ||
!opt_streq(old_options->AccountingStart, new_options->AccountingStart) ||

3
src/or/or.h
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@ -2926,6 +2926,9 @@ int options_need_geoip_info(or_options_t *options, const char **reason_out);
int getinfo_helper_config(control_connection_t *conn,
const char *question, char **answer);
int get_effective_bwrate(or_options_t *options);
int get_effective_bwburst(or_options_t *options);
#ifdef CONFIG_PRIVATE
/* Used only by config.c and test.c */
or_options_t *options_new(void);

12
src/or/router.c
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@ -1300,18 +1300,10 @@ router_rebuild_descriptor(int force)
ri->platform = tor_strdup(platform);
/* compute ri->bandwidthrate as the min of various options */
ri->bandwidthrate = (int)options->BandwidthRate;
if (ri->bandwidthrate > options->MaxAdvertisedBandwidth)
ri->bandwidthrate = (int)options->MaxAdvertisedBandwidth;
if (options->RelayBandwidthRate > 0 &&
ri->bandwidthrate > options->RelayBandwidthRate)
ri->bandwidthrate = (int)options->RelayBandwidthRate;
ri->bandwidthrate = get_effective_bwrate(options);
/* and compute ri->bandwidthburst similarly */
ri->bandwidthburst = (int)options->BandwidthBurst;
if (options->RelayBandwidthBurst > 0 &&
ri->bandwidthburst > options->RelayBandwidthBurst)
ri->bandwidthburst = (int)options->RelayBandwidthBurst;
ri->bandwidthburst = get_effective_bwburst(options);
ri->bandwidthcapacity = hibernating ? 0 : rep_hist_bandwidth_assess();