bug in networkstatus.c using 0.2.1.20

Here is the config from the Tor client where the crash is happening:

TestingTorNetwork 1 DirServer bridgedirauth v3ident=3C1DA30FB6C8760E43C89ED36A700F429C5763E5 orport=443 172.16.234.136:995 B8F4F6B623E787C47A70111E7E5DE4A53A7A1840 DataDirectory /root/.tor/ UseBridges 1 Bridge 172.16.234.136:443 ClientOnly 1

Here is the output from Tor when the bug happens:

(gdb) run -f torrc log info Starting program: /root/tor-0.2.1.20/src/or/tor -f torrc log info Oct 31 19:18:12.716 [notice] Tor v0.2.1.20. This is experimental software. Do not rely on it for strong anonymity. (Running on OpenBSD amd64) Oct 31 19:18:12.720 [warn] You have used DirServer or AlternateDirAuthority to specify alternate directory authorities in your configuration. This is potentially dangerous: it can make you look different from all other Tor users, and hurt your anonymity. Even if you've specified the same authorities as Tor uses by default, the defaults could change in the future. Be sure you know what you're doing. Oct 31 19:18:12.720 [warn] TestingTorNetwork is set. This will make your node almost unusable in the public Tor network, and is therefore only advised if you are building a testing Tor network! Oct 31 19:18:12.721 [notice] Initialized libevent version 1.3e using method kqueue. Good. Oct 31 19:18:12.721 [notice] Opening Socks listener on 127.0.0.1:9050 Oct 31 19:18:12.723 [info] tor_lockfile_lock(): Locking "/root/.tor//lock" Oct 31 19:18:12.723 [info] or_state_load(): Loaded state from "/root/.tor//state" Oct 31 19:18:12.724 [info] read_file_to_str(): Could not open "/root/.tor//router-stability": No such file or directory Oct 31 19:18:12.725 [info] geoip_load_file(): Failed to open GEOIP file /usr/local/share/tor/geoip.
Oct 31 19:18:12.725 [warn] You are running Tor as root. You don't need to, and you probably shouldn't. Oct 31 19:18:12.744 [info] crypto_seed_rng(): Seeding RNG from "/dev/srandom" Oct 31 19:18:12.798 [info] Bootstrapped 0%: Starting. Oct 31 19:18:12.800 [info] trusted_dirs_load_certs_from_string(): Adding cached certificate for directory authority bridgedirauth with signing key F554586AA4C6DFB571A33EEBA89D9D48A94B618B Oct 31 19:18:12.800 [info] read_file_to_str(): Could not open "/root/.tor//cached-consensus": No such file or directory Oct 31 19:18:12.800 [info] read_file_to_str(): Could not open "/root/.tor//unverified-consensus": No such file or directory Oct 31 19:18:12.800 [info] read_file_to_str(): Could not open "/usr/local/share/tor/fallback-consensus": No such file or directory Oct 31 19:18:12.801 [info] should_delay_dir_fetches(): delaying dir fetches (no running bridges known) Oct 31 19:18:12.801 [info] router_load_routers_from_string(): 1 elements to add Oct 31 19:18:12.801 [info] add_an_entry_guard(): Chose 'bridgedirauth' as new entry guard. Oct 31 19:18:12.802 [info] log_entry_guards(): bridgedirauth (down never-contacted) Oct 31 19:18:12.802 [notice] new bridge descriptor 'bridgedirauth' (cached) Oct 31 19:18:12.802 [info] update_consensus_networkstatus_downloads(): Launching networkstatus consensus download. Oct 31 19:18:12.802 [info] connection_ap_make_link(): Making internal direct tunnel to [scrubbed]:443 ... Oct 31 19:18:12.803 [info] onion_pick_cpath_exit(): Using requested exit node 'bridgedirauth' Oct 31 19:18:12.803 [info] circuit_handle_first_hop(): Next router is [scrubbed]: Router not connected (nothing is). Connecting. Oct 31 19:18:12.803 [notice] Bootstrapped 5%: Connecting to directory server. Oct 31 19:18:12.803 [info] get_interface_address6(): connect() failed: Invalid argument Oct 31 19:18:12.804 [info] get_interface_address6(): connect() failed: Invalid argument Oct 31 19:18:12.804 [info] connection_ap_make_link(): ... application connection created and linked. Oct 31 19:18:12.804 [info] directory_send_command(): Downloading consensus from 172.16.234.136:443 using /tor/status-vote/current/consensus.z Oct 31 19:18:12.805 [info] router_load_routers_from_string(): 0 elements to add Oct 31 19:18:12.805 [info] tor_mmap_file(): Could not open "/root/.tor//cached-extrainfo" for mmap(): No such file or directory Oct 31 19:18:12.805 [notice] I learned some more directory information, but not enough to build a circuit: We have no network-status consensus. Oct 31 19:18:12.806 [info] connection_ap_make_link(): Making internal direct tunnel to [scrubbed]:443 ... Oct 31 19:18:12.806 [info] onion_pick_cpath_exit(): Using requested exit node '0000000000000000000000000000000000000000' Oct 31 19:18:12.806 [info] circuit_handle_first_hop(): Next router is [scrubbed]: Not connected. Connecting. Oct 31 19:18:12.806 [info] get_interface_address6(): connect() failed: Invalid argument Oct 31 19:18:12.807 [info] get_interface_address6(): connect() failed: Invalid argument Oct 31 19:18:12.807 [info] connection_ap_make_link(): ... application connection created and linked. Oct 31 19:18:12.809 [info] or_state_save(): Saved state to "/root/.tor//state" Oct 31 19:18:12.809 [info] connection_edge_process_inbuf(): data from edge while in 'waiting for circuit' state. Leaving it on buffer. Oct 31 19:18:12.810 [info] connection_edge_process_inbuf(): data from edge while in 'waiting for circuit' state. Leaving it on buffer. Oct 31 19:18:12.810 [info] connection_edge_process_inbuf(): data from edge while in 'waiting for circuit' state. Leaving it on buffer. Oct 31 19:18:12.810 [info] connection_edge_process_inbuf(): data from edge while in 'waiting for circuit' state. Leaving it on buffer. Oct 31 19:18:12.810 [notice] Bootstrapped 10%: Finishing handshake with directory server. Oct 31 19:18:12.866 [info] connection_or_check_valid_tls_handshake(): Connected to router $B8F4F6B623E787C47A70111E7E5DE4A53A7A1840 at 172.16.234.136:443 without knowing its key. Hoping for the best. Oct 31 19:18:12.867 [info] command_process_versions_cell(): Negotiated version 2 with [scrubbed]:443; sending NETINFO. Oct 31 19:18:12.868 [notice] Bootstrapped 15%: Establishing an encrypted directory connection. Oct 31 19:18:12.868 [info] circuit_send_next_onion_skin(): First hop: finished sending CREATE_FAST cell to 'bridgedirauth' Oct 31 19:18:12.868 [info] circuit_send_next_onion_skin(): First hop: finished sending CREATE_FAST cell to 'bridgedirauth' Oct 31 19:18:12.868 [info] command_process_netinfo_cell(): Got good NETINFO cell from [scrubbed]:443; OR connection is now open, using protocol version 2 Oct 31 19:18:12.869 [info] command_process_versions_cell(): Negotiated version 2 with [scrubbed]:443; sending NETINFO. Oct 31 19:18:12.869 [info] command_process_netinfo_cell(): Got good NETINFO cell from [scrubbed]:443; OR connection is now open, using protocol version 2 Oct 31 19:18:12.910 [info] circuit_finish_handshake(): Finished building fast circuit hop: Oct 31 19:18:12.910 [info] exit circ (length 1, exit bridgedirauth): $B8F4F6B623E787C47A70111E7E5DE4A53A7A1840(open) Oct 31 19:18:12.910 [info] circuit_send_next_onion_skin(): circuit built! Oct 31 19:18:12.910 [notice] Bootstrapped 20%: Asking for networkstatus consensus. Oct 31 19:18:12.910 [info] exit circ (length 1): $B8F4F6B623E787C47A70111E7E5DE4A53A7A1840(open) Oct 31 19:18:12.911 [info] connection_ap_handshake_send_begin(): Address/port sent, ap socket -1, n_circ_id 23920 Oct 31 19:18:12.911 [info] circuit_finish_handshake(): Finished building fast circuit hop: Oct 31 19:18:12.911 [info] exit circ (length 1, exit 0000000000000000000000000000000000000000): $0000000000000000000000000000000000000000(open) Oct 31 19:18:12.912 [info] circuit_send_next_onion_skin(): circuit built! Oct 31 19:18:12.912 [info] exit circ (length 1): $0000000000000000000000000000000000000000(open) Oct 31 19:18:12.912 [info] connection_ap_handshake_send_begin(): Address/port sent, ap socket -1, n_circ_id 23921 Oct 31 19:18:12.913 [info] connection_edge_process_relay_cell_not_open(): 'connected' received after 0 seconds. Oct 31 19:18:12.914 [info] exit circ (length 1): $B8F4F6B623E787C47A70111E7E5DE4A53A7A1840(open) Oct 31 19:18:12.914 [notice] Bootstrapped 25%: Loading networkstatus consensus. Oct 31 19:18:12.915 [info] connection_edge_process_relay_cell_not_open(): 'connected' received after 0 seconds. Oct 31 19:18:12.915 [info] exit circ (length 1): $0000000000000000000000000000000000000000(open) Oct 31 19:18:12.915 [notice] Bootstrapped 50%: Loading relay descriptors. Oct 31 19:18:12.916 [info] connection_edge_process_relay_cell(): -1: end cell (closed normally) for stream 44628. Removing stream. Oct 31 19:18:12.917 [info] _connection_free(): Freeing linked Socks connection [open] with 0 bytes on inbuf, 0 on outbuf. Oct 31 19:18:12.918 [info] connection_dir_client_reached_eof(): Received consensus directory (size 1367) from server '172.16.234.136:443' Oct 31 19:18:12.918 [info] 0 unknown, 0 missing key, 1 good, 0 bad, 0 no signature, 1 required Oct 31 19:18:12.919 [err] Bug: networkstatus.c:1164: update_consensus_networkstatus_fetch_time: Assertion start+dl_interval < c->valid_until failed; aborting. networkstatus.c:1164 update_consensus_networkstatus_fetch_time: Assertion start+dl_interval < c->valid_until failed; aborting.

Here is the backtrace from this crashed process:

(gdb) backtrace #0 0x000000020c37137a in kill () from /usr/lib/libc.so.51.0 #1 0x000000020c3bd765 in abort () at /usr/src/lib/libc/stdlib/abort.c:68 #2 (closed) 0x000000000045cb81 in update_consensus_networkstatus_fetch_time (now=1257016692) at networkstatus.c:1183 #3 (closed) 0x000000000045d29d in networkstatus_set_current_consensus ( consensus=0x20f769800 "network-status-version 3\nvote-status consensus\nconsensus-method 5\nvalid-after 2009-10-31 19:15:00\nfresh-until 2009-10-31 19:20:00\nvalid-until 2009-10-31 19:30:00\nvoting-delay 20 20\nclient-versions \nse"..., flags=0) at networkstatus.c:1527 #4 (closed) 0x000000000043feac in connection_dir_client_reached_eof (conn=0x2088f0d00) at directory.c:1638 #5 (closed) 0x000000000044061e in connection_dir_reached_eof (conn=0x2088f0d00) at directory.c:2040 #6 (closed) 0x000000000042626f in connection_handle_read (conn=0x2088f0d00) at connection.c:2037 #7 (closed) 0x0000000000457b91 in conn_read_callback (fd=8833, event=6, _conn=0x37b7) at main.c:456 #8 (closed) 0x000000020377f2e2 in event_process_active (base=0x201cfdc00) at /usr/src/lib/libevent/event.c:333 #9 (closed) 0x000000020377f501 in event_base_loop (base=0x201cfdc00, flags=1) at /usr/src/lib/libevent/event.c:450 #10 (closed) 0x000000020377f3b5 in event_loop (flags=8833) at /usr/src/lib/libevent/event.c:383 #11 (closed) 0x0000000000459726 in do_main_loop () at main.c:1444 #12 (closed) 0x000000000045a88b in tor_main (argc=5, argv=0x7f7fffff1850) at main.c:2070 #13 (closed) 0x000000000040702c in ___start () #14 (closed) 0x0000000000000005 in ?? () #15 (closed) 0x00007f7fffff1d00 in ?? () #16 (closed) 0x00007f7fffff1d1e in ?? () #17 (closed) 0x00007f7fffff1d21 in ?? () #18 (closed) 0x00007f7fffff1d27 in ?? () #19 (closed) 0x00007f7fffff1d2b in ?? () #20 (closed) 0x0000000000000000 in ?? ()

The configs used for the servers in this network can be found here: http://pastebin.com/m65b5da00

I'd also be keen to hear if the configs I have for such a network actually make sense, and that I haven't forgotten something crucial when testing Tor.

Thanks

mikeb

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