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path: root/src/or/dnsserv.c
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2016-05-04Merge branch 'maint-0.2.8'Nick Mathewson
2016-05-04Merge branch 'bug18710_025' into maint-0.2.8Nick Mathewson
2016-05-04Fix dnsserv.c assertion when no supported questions are requested.Scott Dial
The problem is that "q" is always set on the first iteration even if the question is not a supported question. This set of "q" is not necessary, and will be handled after exiting the loop if there if a supported q->type was found. [Changes file by nickm] lease enter the commit message for your changes. Lines starting
2016-03-28Rename tor_dup_addr to tor_addr_to_str_dup.Nick Mathewson
Patch from icanhasaccount; closes 18462.
2016-02-27Update the copyright year.Nick Mathewson
2016-02-27Make sure that every module in src/or has a brief description.Nick Mathewson
2015-11-27More fixes/debugging attempts for 17659Nick Mathewson
2015-01-16Move entry_port_cfg_t fields in entry_connection_tNick Mathewson
Also rename some options for uniformity, and apply this script: @@ entry_connection_t *conn; @@ conn-> +entry_cfg. \( isolation_flags \| session_group \| socks_prefer_no_auth \| ipv4_traffic \| ipv6_traffic \| prefer_ipv6 \| cache_ipv4_answers \| cache_ipv6_answers \| use_cached_ipv4_answers \| use_cached_ipv6_answers \| prefer_ipv6_virtaddr \)
2015-01-16Combine entry_port_cfg_t fields in listener_connection_tNick Mathewson
Also, revise the code using these options with this cocci script: @@ listener_connection_t *conn; @@ conn-> +entry_cfg. \( isolation_flags \| session_group \| socks_prefer_no_auth \| ipv4_traffic \| ipv6_traffic \| prefer_ipv6 \| cache_ipv4_answers \| cache_ipv6_answers \| use_cached_ipv4_answers \| use_cached_ipv6_answers \| prefer_ipv6_virtaddr \)
2015-01-02Bump copyright dates to 2015, in case someday this matters.Nick Mathewson
2014-10-28Add another year to our copyright dates.Nick Mathewson
Because in 95 years, we or our successors will surely care about enforcing the BSD license terms on this code. Right?
2014-04-07Give no answer, not NOTIMPL, for unsupported DNS query typesNick Mathewson
According to reports, most programs degrade somewhat gracefully on getting no answer for an MX or a CERT for www.example.com, but many flip out completely on a NOTIMPL error. Also, treat a QTYPE_ALL query as just asking for an A record. The real fix here is to implement proposal 219 or something like it. Fixes bug 10268; bugfix on 0.2.0.1-alpha. Based on a patch from "epoch".
2014-03-27Respond to AAAA requests on DNSPort with AAAA automapsNick Mathewson
Other DNS+IPv6 problems remain, but at least this fixes the automapping. Fixes bug 10468; bugfix on 0.2.4.7-alpha.
2013-05-31When launching a resolve request on behalf of an AF_UNIX control, omit the ↵Andrea Shepard
address field of the new entry connection. Fixes bug 8639.
2013-03-18Fix some wide linesNick Mathewson
2013-03-18Make stream events for RESOLVE lookups more consistentNick Mathewson
Fixes 8203; patch by Desoxy
2013-01-16Update the copyright date to 201.Nick Mathewson
2012-11-14Initial support for AAAA requests on DNSPort.Nick Mathewson
This is imperfect, since it sends back whatever we would send to a socks RESOLVE request, when in reality we should send back whatever was asked for.
2012-11-14Let tor-resolve generate PTR requests for IPv6 addressesNick Mathewson
2012-10-12Rename all reserved C identifiers we definedNick Mathewson
For everything we declare that starts with _, make it end with _ instead. This is a machine-generated patch. To make it, start by getting the list of reserved identifiers using: git ls-tree -r --name-only HEAD | grep '\.[ch]$' | \ xargs ctags --c-kinds=defglmpstuvx -o - | grep '^_' | \ cut -f 1 | sort| uniq You might need gnu ctags. Then pipe the output through this script: ============================== use strict; BEGIN { print "#!/usr/bin/perl -w -i -p\n\n"; } chomp; next if ( /^__attribute__/ or /^__func__/ or /^_FILE_OFFSET_BITS/ or /^_FORTIFY_SOURCE/ or /^_GNU_SOURCE/ or /^_WIN32/ or /^_DARWIN_UNLIMITED/ or /^_FILE_OFFSET_BITS/ or /^_LARGEFILE64_SOURCE/ or /^_LFS64_LARGEFILE/ or /^__cdecl/ or /^__attribute__/ or /^__func__/ or /^_WIN32_WINNT/); my $ident = $_; my $better = $ident; $better =~ s/^_//; $better = "${better}_"; print "s/(?<![A-Za-z0-9_])$ident(?![A-Za-z0-9_])/$better/g;\n"; ============================== Then run the resulting script on all the files you want to change. (That is, all the C except that in src/ext.) The resulting script was: ============================== s/(?<![A-Za-z0-9_])_address(?![A-Za-z0-9_])/address_/g; s/(?<![A-Za-z0-9_])_aes_fill_buf(?![A-Za-z0-9_])/aes_fill_buf_/g; s/(?<![A-Za-z0-9_])_AllowInvalid(?![A-Za-z0-9_])/AllowInvalid_/g; s/(?<![A-Za-z0-9_])_AP_CONN_STATE_MAX(?![A-Za-z0-9_])/AP_CONN_STATE_MAX_/g; s/(?<![A-Za-z0-9_])_AP_CONN_STATE_MIN(?![A-Za-z0-9_])/AP_CONN_STATE_MIN_/g; s/(?<![A-Za-z0-9_])_assert_cache_ok(?![A-Za-z0-9_])/assert_cache_ok_/g; s/(?<![A-Za-z0-9_])_A_UNKNOWN(?![A-Za-z0-9_])/A_UNKNOWN_/g; s/(?<![A-Za-z0-9_])_base(?![A-Za-z0-9_])/base_/g; s/(?<![A-Za-z0-9_])_BridgePassword_AuthDigest(?![A-Za-z0-9_])/BridgePassword_AuthDigest_/g; s/(?<![A-Za-z0-9_])_buffer_stats_compare_entries(?![A-Za-z0-9_])/buffer_stats_compare_entries_/g; s/(?<![A-Za-z0-9_])_chan_circid_entries_eq(?![A-Za-z0-9_])/chan_circid_entries_eq_/g; s/(?<![A-Za-z0-9_])_chan_circid_entry_hash(?![A-Za-z0-9_])/chan_circid_entry_hash_/g; s/(?<![A-Za-z0-9_])_check_no_tls_errors(?![A-Za-z0-9_])/check_no_tls_errors_/g; s/(?<![A-Za-z0-9_])_c_hist_compare(?![A-Za-z0-9_])/c_hist_compare_/g; s/(?<![A-Za-z0-9_])_circ(?![A-Za-z0-9_])/circ_/g; s/(?<![A-Za-z0-9_])_circuit_get_global_list(?![A-Za-z0-9_])/circuit_get_global_list_/g; s/(?<![A-Za-z0-9_])_circuit_mark_for_close(?![A-Za-z0-9_])/circuit_mark_for_close_/g; s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_C_MAX(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_C_MAX_/g; s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_MAX(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_MAX_/g; s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_MIN(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_MIN_/g; s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_OR_MAX(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_OR_MAX_/g; s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_OR_MIN(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_OR_MIN_/g; s/(?<![A-Za-z0-9_])_cmp_int_strings(?![A-Za-z0-9_])/cmp_int_strings_/g; s/(?<![A-Za-z0-9_])_compare_cached_resolves_by_expiry(?![A-Za-z0-9_])/compare_cached_resolves_by_expiry_/g; s/(?<![A-Za-z0-9_])_compare_digests(?![A-Za-z0-9_])/compare_digests_/g; s/(?<![A-Za-z0-9_])_compare_digests256(?![A-Za-z0-9_])/compare_digests256_/g; 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s/(?<![A-Za-z0-9_])_ExcludeExitNodesUnion(?![A-Za-z0-9_])/ExcludeExitNodesUnion_/g; s/(?<![A-Za-z0-9_])_EXIT_CONN_STATE_MAX(?![A-Za-z0-9_])/EXIT_CONN_STATE_MAX_/g; s/(?<![A-Za-z0-9_])_EXIT_CONN_STATE_MIN(?![A-Za-z0-9_])/EXIT_CONN_STATE_MIN_/g; s/(?<![A-Za-z0-9_])_EXIT_PURPOSE_MAX(?![A-Za-z0-9_])/EXIT_PURPOSE_MAX_/g; s/(?<![A-Za-z0-9_])_EXIT_PURPOSE_MIN(?![A-Za-z0-9_])/EXIT_PURPOSE_MIN_/g; s/(?<![A-Za-z0-9_])_extrainfo_free(?![A-Za-z0-9_])/extrainfo_free_/g; s/(?<![A-Za-z0-9_])_find_by_keyword(?![A-Za-z0-9_])/find_by_keyword_/g; s/(?<![A-Za-z0-9_])_free_cached_dir(?![A-Za-z0-9_])/free_cached_dir_/g; s/(?<![A-Za-z0-9_])_free_cached_resolve(?![A-Za-z0-9_])/free_cached_resolve_/g; s/(?<![A-Za-z0-9_])_free_duplicate_routerstatus_entry(?![A-Za-z0-9_])/free_duplicate_routerstatus_entry_/g; s/(?<![A-Za-z0-9_])_free_link_history(?![A-Za-z0-9_])/free_link_history_/g; s/(?<![A-Za-z0-9_])_geoip_compare_entries(?![A-Za-z0-9_])/geoip_compare_entries_/g; s/(?<![A-Za-z0-9_])_geoip_compare_key_to_entry(?![A-Za-z0-9_])/geoip_compare_key_to_entry_/g; 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2012-06-15Triage the XXX023 and XXX022 comments: postpone many.Nick Mathewson
2012-06-04Update copyright dates to 2012; add a few missing copyright statementsNick Mathewson
2011-09-07Merge remote-tracking branch 'public/split_entry_conn'Nick Mathewson
Conflicts: src/or/connection.c src/or/connection_edge.c src/or/connection_edge.h src/or/dnsserv.c Some of these were a little tricky, since they touched code that changed because of the prop171 fixes.
2011-08-02Implement protocol-type isolation correctly.Nick Mathewson
Previously we'd just looked at the connection type, but that's always CONN_TYPE_AP. Instead, we should be looking at the type of the listener that created the connection. Spotted by rransom; fixes bug 3636.
2011-07-21Move entry-only fields from edge_connection_t to entry_connection_tNick Mathewson
Also, refactor the code accordingly.
2011-07-21Add a new type entry_connection_t for entry connectionsNick Mathewson
No fields have moved there yet; for now, it's just a placeholder type.
2011-07-19Stick controller-originated resolves in their own session groupNick Mathewson
2011-07-19Implement destaddr-based isolationNick Mathewson
The new candidate rule, which arma suggested and I like, is that the original address as received from the client connection or as rewritten by the controller is the address that counts.
2011-07-19Add a new isolation type and field: "nym epoch"Nick Mathewson
The "nym epoch" of a stream is defined as the number of times that NEWNYM had been called before the stream was opened. All streams are isolated by nym epoch. This feature should be redundant with existing signewnym stuff, but it provides a good belt-and-suspenders way for us to avoid ever letting any circuit type bypass signewnym.
2011-07-19(Unused) backend logic for stream isolationNick Mathewson
This patch adds fields to track how streams should be isolated, and ensures that those fields are set correctly. It also adds fields to track what streams can go on a circuit, and adds functions to see whether a streams can go on a circuit and update the circuit accordingly. Those functions aren't yet called.
2011-07-19Refactor listener_connection_t into its own type.Nick Mathewson
This will allow us to add more fields to listener_connection_t without bloating the other connection types.
2011-06-13client-side DNS proxy server: reply NOTIMPL to unsupported queriesintrigeri
Fix for bug 3369.
2011-05-23Use a 64-bit type to hold sockets on win64.Nick Mathewson
On win64, sockets are of type UINT_PTR; on win32 they're u_int; elsewhere they're int. The correct windows way to check a socket for being set is to compare it with INVALID_SOCKET; elsewhere you see if it is negative. On Libevent 2, all callbacks take sockets as evutil_socket_t; we've been passing them int. This patch should fix compilation and correctness when built for 64-bit windows. Fixes bug 3270.
2011-04-26Merge remote-tracking branch 'public/bug2332' into maint-0.2.2Nick Mathewson
2011-03-25Triage the XXX022 and XXX021 comments remaining in the codeNick Mathewson
Remove some, postpone others, leave some alone. Now the only remaining XXX022s are ones that seem important to fix or investigate.
2011-01-15Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2Nick Mathewson
2011-01-15Add missing check for hostname answer_len in dnsserv sizeNick Mathewson
This is checked elsewhere too, but let's be RFC-conformant.
2011-01-15Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2Nick Mathewson
Conflicts: src/or/config.c src/or/networkstatus.c src/or/rendcommon.c src/or/routerparse.c src/or/test.c
2011-01-15Always nul-terminate the result passed to evdns_server_add_ptr_replyNick Mathewson
In dnsserv_resolved(), we carefully made a nul-terminated copy of the answer in a PTR RESOLVED cell... then never used that nul-terminated copy. Ouch. Surprisingly this one isn't as huge a security problem as it could be. The only place where the input to dnsserv_resolved wasn't necessarily nul-terminated was when it was called indirectly from relay.c with the contents of a relay cell's payload. If the end of the payload was filled with junk, eventdns.c would take the strdup() of the name [This part is bad; we might crash there if the cell is in a bad part of the stack or the heap] and get a name of at least length 495[*]. eventdns.c then rejects any name of length over 255, so the bogus data would be neither transmitted nor altered. [*] If the name was less than 495 bytes long, the client wouldn't actually be reading off the end of the cell. Nonetheless this is a reasonably annoying bug. Better fix it. Found while looking at bug 2332, reported by doorss. Bugfix on 0.2.0.1-alpha.
2011-01-10Make eventdns server functions const void* to match libeventNick Mathewson
partial fix for bug 2332
2011-01-03Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2Nick Mathewson
Conflicts: src/common/test.h src/or/test.c
2011-01-03Bump copyright statements to 2011Nick Mathewson
2010-08-08Ensure controller RESOLVE commands respect __LeaveStreamsUnattachedRobert Hogan
https://trac.torproject.org/projects/tor/ticket/1525 "The codepath taken by the control port "RESOLVE" command to create a synthetic SOCKS resolve request isn't the same as the path taken by a real SOCKS request from 'tor-resolve'. This prevents controllers who set LeaveStreamsUnattached=1 from being able to attach RESOLVE streams to circuits of their choosing." Create a new function connection_ap_rewrite_and_attach_if_allowed() and call that when Tor needs to attach a stream to a circuit but needs to know if the controller permits it. No tests added.
2010-07-27Create policies.hSebastian Hahn
2010-07-27Create main.hSebastian Hahn
2010-07-27Create control.hSebastian Hahn
2010-07-27Create connection_edge.hSebastian Hahn
2010-07-27Create connection.hSebastian Hahn
2010-07-27Create config.hSebastian Hahn
2010-07-27Split headers for dnsserv.c functions out of or.hSebastian Hahn
The next series of commits begins addressing the issue that we're currently including the complete or.h file in all of our source files. To change that, we're splitting function definitions into new header files (one header file per source file).
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