[tor-bugs] #20451 [Obfuscation/meek]: The communication stream of managed proxy '/usr/bin/meek-client' is 'closed'

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Oct 26 18:22:31 UTC 2016


#20451: The communication stream of managed proxy '/usr/bin/meek-client' is
'closed'
------------------------------+---------------------
 Reporter:  tagener-noisu     |          Owner:  dcf
     Type:  defect            |         Status:  new
 Priority:  Medium            |      Milestone:
Component:  Obfuscation/meek  |        Version:
 Severity:  Normal            |     Resolution:
 Keywords:                    |  Actual Points:
Parent ID:                    |         Points:
 Reviewer:                    |        Sponsor:
------------------------------+---------------------

Comment (by tagener-noisu):

 Replying to [comment:5 dcf]:
 > Hm, I don't know what to suggest. You can try increasing the tor log
 verbosity from "notice" to "info":
 > {{{
 > Log info syslog
 > }}}
 >
 Still nothing usefull in the log.
 {{{
 Oct 26 23:54:13 laptop Tor[32547]: launch_managed_proxy(): Managed proxy
 at '/usr/bin/meek-client' has spawned with PID '32555'.
 Oct 26 23:54:13 laptop Tor[32547]: cell_ewma_set_scale_factor(): Disabled
 cell_ewma algorithm because of value in Default value
 Oct 26 23:54:13 laptop Tor[32547]: Parsing GEOIP IPv4 file
 /usr/share/tor/geoip.
 Oct 26 23:54:13 laptop Tor[32547]: Parsing GEOIP IPv6 file
 /usr/share/tor/geoip6.
 Oct 26 23:54:13 laptop Tor[32547]: crypto_global_init(): NOT using OpenSSL
 engine support.
 Oct 26 23:54:13 laptop Tor[32547]: evaluate_evp_for_aes(): This version of
 OpenSSL has a known-good EVP counter-mode implementation. Using it.
 Oct 26 23:54:13 laptop Tor[32547]: Bootstrapped 0%: Starting
 Oct 26 23:54:13 laptop Tor[32547]: trusted_dirs_load_certs_from_string():
 Adding cached certificate for directory authority Faravahar with signing
 key 81FFA14EDAECD6CD8167A81556643486A7D30077
 Oct 26 23:54:13 laptop Tor[32547]: trusted_dirs_load_certs_from_string():
 Not adding cached certificate for unrecognized directory authority with
 signing key 11160AE7FE48BEBE4716E8CD4ED9711FD9E3DDBF
 Oct 26 23:54:13 laptop Tor[32547]: trusted_dirs_load_certs_from_string():
 Adding cached certificate for directory authority tor26 with signing key
 30F18E63064ECEB50C4D6339F5F6B12F9D6671DA
 Oct 26 23:54:13 laptop Tor[32547]: trusted_dirs_load_certs_from_string():
 Adding cached certificate for directory authority longclaw with signing
 key B54530637B8E758C5CB008ADF2BDB4D86DD74946
 Oct 26 23:54:13 laptop Tor[32547]: trusted_dirs_load_certs_from_string():
 Adding cached certificate for directory authority maatuska with signing
 key E9E6767366FB9056675D7A99B1D3E4F712752C81
 Oct 26 23:54:13 laptop Tor[32547]: trusted_dirs_load_certs_from_string():
 Adding cached certificate for directory authority moria1 with signing key
 25EA246B93803795E871FBA60C1A4D6224A837F8
 Oct 26 23:54:13 laptop Tor[32547]: trusted_dirs_load_certs_from_string():
 Adding cached certificate for directory authority gabelmoo with signing
 key 9E5ECDF8D87A1B11C000A11B57AEB31D2EE48A72
 Oct 26 23:54:13 laptop Tor[32547]: trusted_dirs_load_certs_from_string():
 Adding cached certificate for directory authority dizum with signing key
 2FD3DEFEA7E7965FB10ABF316E188DDB638AD506
 Oct 26 23:54:13 laptop Tor[32547]: read_file_to_str(): Could not open
 "/var/lib/tor/cached-consensus": No such file or directory
 Oct 26 23:54:13 laptop Tor[32547]: read_file_to_str(): Could not open
 "/var/lib/tor/unverified-consensus": No such file or directory
 Oct 26 23:54:13 laptop Tor[32547]: read_file_to_str(): Could not open
 "/var/lib/tor/unverified-microdesc-consensus": No such file or directory
 Oct 26 23:54:13 laptop Tor[32547]: microdesc_cache_reload(): Reloaded
 microdescriptor cache. Found 7906 descriptors.
 Oct 26 23:54:13 laptop Tor[32547]: tor_mmap_file(): Could not open
 "/var/lib/tor/cached-descriptors" for mmap(): No such file or directory
 Oct 26 23:54:13 laptop Tor[32547]: tor_mmap_file(): Could not open
 "/var/lib/tor/cached-extrainfo" for mmap(): No such file or directory
 Oct 26 23:54:13 laptop Tor[32547]: compute_weighted_bandwidths(): Empty
 routerlist passed in to consensus weight node selection for rule weight as
 guard
 Oct 26 23:54:13 laptop Tor[32547]: should_delay_dir_fetches(): Delaying
 dir fetches (no running bridges known)
 Oct 26 23:54:13 laptop Tor[32547]: Delaying directory fetches: No running
 bridges
 Oct 26 23:54:13 laptop Tor[32547]: I learned some more directory
 information, but not enough to build a circuit: No running bridges
 Oct 26 23:54:13 laptop Tor[32547]: compute_weighted_bandwidths(): Empty
 routerlist passed in to consensus weight node selection for rule weight as
 guard
 Oct 26 23:54:13 laptop Tor[32547]: should_delay_dir_fetches(): Delaying
 dir fetches (no running bridges known)
 Oct 26 23:54:13 laptop Tor[32547]: compute_weighted_bandwidths(): Empty
 routerlist passed in to consensus weight node selection for rule weight as
 guard
 Oct 26 23:54:13 laptop Tor[32547]: should_delay_dir_fetches(): Delaying
 dir fetches (no running bridges known)
 Oct 26 23:54:14 laptop Tor[32547]: compute_weighted_bandwidths(): Empty
 routerlist passed in to consensus weight node selection for rule weight as
 guard
 Oct 26 23:54:14 laptop Tor[32547]: should_delay_dir_fetches(): Delaying
 dir fetches (no running bridges known)
 Oct 26 23:54:14 laptop Tor[32547]: compute_weighted_bandwidths(): Empty
 routerlist passed in to consensus weight node selection for rule weight as
 guard
 Oct 26 23:54:14 laptop Tor[32547]: should_delay_dir_fetches(): Delaying
 dir fetches (no running bridges known)
 Oct 26 23:54:14 laptop Tor[32547]: compute_weighted_bandwidths(): Empty
 routerlist passed in to consensus weight node selection for rule weight as
 guard
 Oct 26 23:54:14 laptop Tor[32547]: should_delay_dir_fetches(): Delaying
 dir fetches (no running bridges known)
 Oct 26 23:54:14 laptop Tor[32547]: or_state_save(): Saved state to
 "/var/lib/tor/state"
 Oct 26 23:54:14 laptop Tor[32547]: The communication stream of managed
 proxy '/usr/bin/meek-client' is 'closed'. Most probably the managed proxy
 stopped running. This might be a bug of the managed proxy, a bug of Tor,
 or a misconfiguration. Please enable logging on your managed proxy and
 check the logs for errors.
 }}}
 > Is it possible you have some kind of hardening like seccomp or apparmor
 that applies to tor? That might be restricting what it can do with its
 child processes. Are you able to use an obfs4 bridge with obfs4proxy?
 No I don't have anything like that. obfs-proxies don't work anymore in my
 country - that's why I'm trying to use meek. I've left a message on AUR's
 page of the my package, I will try to figure out what's wrong.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20451#comment:6>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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