Commit Graph

1592 Commits

Author SHA1 Message Date
Nick Mathewson
3c03e237ab Remove an erroneous 0.5 in compute_weighted_bandwidths()
Back in 0.2.4.3-alpha (e106812a77), when we switched from using
double to using uint64 for selecting by bandwidth, I got the math
wrong: I should have used llround(x), or (uint64_t)(x+0.5), but
instead I wrote llround(x+0.5).  That means we would always round
up, rather than rounding to the closest integer

Fixes bug 23318; bugfix on 0.2.4.3-alpha.
2017-11-08 10:45:18 -05:00
Nick Mathewson
b780e84f25 Merge branch 'maint-0.3.2' 2017-11-07 20:36:04 -05:00
Nick Mathewson
3dc61a5d71 Revert "Remove an erroneous 0.5 in compute_weighted_bandwidths()"
This reverts commit 01e984870a.
2017-11-07 20:35:19 -05:00
Nick Mathewson
3beb3dac2d Merge branch 'maint-0.3.2' 2017-11-06 09:49:06 -05:00
Nick Mathewson
c80293706f Merge remote-tracking branch 'public/bug23318_029' into maint-0.3.2 2017-11-06 09:48:51 -05:00
Nick Mathewson
35746a9ee7 Comment-only change: annotate exit() calls.
Sometimes when we call exit(), it's because the process is
completely hopeless: openssl has a broken AES-CTR implementation, or
the clock is in the 1960s, or something like that.

But sometimes, we should return cleanly from tor_main() instead, so
that embedders can keep embedding us and start another Tor process.

I've gone through all the exit() and _exit() calls to annotate them
with "exit ok" or "XXXX bad exit" -- the next step will be to fix
the bad exit()s.

First step towards 23848.
2017-10-19 13:42:28 -04:00
teor
eaf9c0f25a Describe what router_reset_descriptor_download_failures() actually does
Comment-only change.

Part of #23813.
2017-10-15 20:36:18 -04:00
Nick Mathewson
01e984870a Remove an erroneous 0.5 in compute_weighted_bandwidths()
Back in 0.2.4.3-alpha (e106812a77), when we switched from using
double to using uint64 for selecting by bandwidth, I got the math
wrong: I should have used llround(x), or (uint64_t)(x+0.5), but
instead I wrote llround(x+0.5).  That means we would always round
up, rather than rounding to the closest integer

Fixes bug 23318; bugfix on 0.2.4.3-alpha.
2017-09-22 15:29:15 -04:00
Nick Mathewson
f4af1919ab Replace accumulated C ;;s with ;s
I don't know where these came from.
2017-09-15 16:43:17 -04:00
Nick Mathewson
c1deabd3b0 Run our #else/#endif annotator on our source code. 2017-09-15 16:24:44 -04:00
Nick Mathewson
035fe2d208 Remove named_map and unnamed_map from networkstatus.c 2017-09-12 09:56:42 -04:00
Nick Mathewson
2df7f1d59d Merge branch 'ed25519_lookup' 2017-09-08 12:18:22 -04:00
David Goulet
c527cde82f prop224: Pick rendezvous point of protover HSRend=2
Version 3 hidden service needs rendezvous point that have the protocol version
HSRend >= 2 else the rendezvous cells are rejected.

Fixes #23361

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-09-07 08:35:28 -04:00
Nick Mathewson
d7a3e336ee Remove some support for nickname-based hexdigests
We once used $X=N to mean "A relay with RSA ID digest X with the
Named flag and the nickname N."  But authorities no longer assign
the Named flag.
2017-08-22 18:47:57 -04:00
Nick Mathewson
efbd4a33f4 Raise MIN_DL_PER_REQUEST to 32
This change should improve overhead for downloading small numbers of
descriptors and microdescriptors by improving compression
performance and lowering directory request overhead.

Closes ticket 23220.
2017-08-11 13:54:01 -04:00
Nick Mathewson
86eb63deb4 Merge remote-tracking branch 'public/bug19648' 2017-07-06 09:32:22 -04:00
huyvq
ad97714f22 Remove obsolete authdir_mode_any_nonhidserv()
- Replace it with authdir_mode()
2017-06-21 13:49:17 -04:00
huyvq
18cd1993ca Convert authdir_mode_handles_descs() to alternative wrappers
-authdir_mode_handles_descs(options, ROUTER_PURPOSE_BRIDGE) to authdir_mode_bridge(options).

- authdir_mode_handles_descs(options, ROUTER_PURPOSE_GENERAL) to authdir_mode_v3(options).
2017-06-21 13:49:17 -04:00
Nick Mathewson
6fcaf83c98 Cleanup MOCK_IMPL (etc) to be findable with etags
A fair number of our mock_impl declarations were messed up so that
even our special AM_ETAGSFLAGS couldn't find them.

This should be a whitespace-only patch.
2017-05-26 14:07:06 -04:00
Nick Mathewson
994595ae5d Don't say "downloading 1 descriptor, 4 at a time"
Fixes bug 19648, bugfix on 0.1.1.8-alpha.
2017-05-23 09:47:11 -04:00
George Kadianakis
e102ad60d0 Refactor directory_initiate_command() so that it accepts guard_state. 2017-05-22 15:45:46 +03:00
Roger Dingledine
466e27feae simplify functions now that they don't use options param 2017-05-10 17:57:35 -04:00
Nick Mathewson
2a1013948d Merge branch 'dgoulet_ticket22060_031_01_squashed' 2017-05-09 10:32:21 -04:00
David Goulet
09bc858dd5 config: Remove ExcludeSingleHopRelays option
Deprecated in 0.2.9.2-alpha, this commits changes it as OBSOLETE() and cleans
up the code associated with it.

Partially fixes #22060

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-05-09 10:30:52 -04:00
David Goulet
2b9823b310 config: Remove AllowInvalidNodes option
Deprecated in 0.2.9.2-alpha, this commits changes it as OBSOLETE() and cleans
up the code associated with it.

Partially fixes #22060

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-05-09 10:30:51 -04:00
Nick Mathewson
33a2fd065d Merge branch 'dirreq' 2017-04-27 10:08:32 -04:00
Nick Mathewson
b4fe0a6a03 Improve control flow in authority_certs_fetch_resource_impl 2017-04-27 09:30:08 -04:00
Taylor Yu
7bc636fdc9 Add regression test for #22304 2017-04-24 09:20:59 -04:00
Nick Mathewson
8aadd60eac Replace remaining directory_initiate_command_* instances 2017-04-21 15:08:28 -04:00
Nick Mathewson
7505f452c8 Run the copyright update script. 2017-03-15 16:13:17 -04:00
Nick Mathewson
76d79d597a Merge branch 'maint-0.2.9' 2017-02-15 07:48:42 -05:00
Nick Mathewson
1afc2ed956 Fix policies.c instance of the "if (r=(a-b)) return r" pattern
I think this one probably can't underflow, since the input ranges
are small.  But let's not tempt fate.

This patch also replaces the "cmp" functions here with just "eq"
functions, since nothing actually checked for anything besides 0 and
nonzero.

Related to 21278.
2017-02-14 16:31:11 -05:00
Nick Mathewson
5b97d7e110 Remove PDS_FOR_GUARD 2017-01-18 15:42:28 -05:00
Nick Mathewson
472b277207 Remove the (no longer compiled) code for legacy guard selection.
Part of 20830.
2017-01-18 15:27:10 -05:00
Nick Mathewson
fa00f2dce5 Merge branch 'ahf_bugs_17847_2_squashed' 2017-01-18 11:04:58 -05:00
Alexander Færøy
46ef32ba22 Refactor duplicated extrainfo checks into a common macro.
This patch refactors duplicated code, to check if a given router
supports fetching the extra-info document, into a common macro called
SKIP_MISSING_TRUSTED_EXTRAINFO.
2017-01-18 11:04:49 -05:00
Alexander Færøy
0ff9ea2afd Generalize router_is_already_dir_fetching_{rs,ds}.
This patch generalizes the two functions
router_is_already_dir_fetching_rs and router_is_already_dir_fetching_ds
into a single function, router_is_already_dir_fetching_, by lifting the
passing of the IPv4 & IPv6 addresses and the directory port number to
the caller.
2017-01-18 11:04:49 -05:00
Nick Mathewson
94e8f60901 Merge branch 'ipv6-only-client_squashed' 2017-01-13 16:49:48 -05:00
teor
0417dae580 When IPv6 addresses have not been downloaded, use hard-coded address info
The microdesc consensus does not contain any IPv6 addresses.
When a client has a microdesc consensus but no microdescriptor, make it
use the hard-coded IPv6 address for the node (if available).

(Hard-coded addresses can come from authorities, fallback directories,
or configured bridges.)

If there is no hard-coded address, log a BUG message, and fail the
connection attempt. (All existing code checks for a hard-coded address
before choosing a node address.)

Fixes 20996, fix on b167e82 from 19608 in 0.2.8.5-alpha.
2017-01-13 16:49:33 -05:00
Roger Dingledine
51ee549a90 fix typos and trivial syntax problems 2016-12-18 04:06:02 -05:00
Nick Mathewson
2cee38f76a Merge branch 'prop271_030_v1_squashed' 2016-12-16 11:20:59 -05:00
Nick Mathewson
6867950432 Wrap all of the legacy guard code, and its users, in #ifdefs
This will make it easier to see what we remove down the line.
2016-12-16 11:06:22 -05:00
Nick Mathewson
55d02c004c Remove AuthDirMaxServersPerAuthAddr
Back when Roger had do do most of our testing on the moria host, we
needed a higher limit for the number of relays running on a single
IP address when that limit was shared with an authority. Nowadays,
the idea is pretty obsolete.

Also remove the router_addr_is_trusted_dir() function, which served
no other purpose.

Closes ticket 20960.
2016-12-13 13:09:27 -05:00
Nick Mathewson
1bd562f1c4 Merge branch 'people-to-node-type' 2016-12-12 09:50:31 -05:00
J. Ryan Stinnett
d5df9fa235 Replace "people" with the appropriate network component in comments
Fixes #18145.
2016-12-12 09:50:21 -05:00
Nick Mathewson
a3b8286b0e Merge branch 'maint-0.2.9' 2016-12-09 08:30:55 -05:00
David Goulet
9bb3bcbc41 router: Fix memory leak in signed_descriptor_move()
The signed_descriptor_move() was not releasing memory inside the destination
object before overwriting it with the source object. This commit adds a reset
function that free that memory inside a signed descriptor object and zero it.

Closes #20715.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2016-12-09 08:30:46 -05:00
Nick Mathewson
dbbaa51518 Use the new guard notification/selection APIs throughout Tor
This patch doesn't cover every case; omitted cases are marked with
"XXXX prop271", as usual.  It leaves both the old interface and the
new interface for guard status notification, since they don't
actually work in the same way: the new API wants to be told when a
circuit has failed or succeeded, whereas the old API wants to know
when a channel has failed or succeeded.

I ran into some trouble with directory guard stuff, since when we
pick the directory guard, we don't actually have a circuit to
associate it with.  I solved that by allowing guard states to be
associated with directory connections, not just circuits.
2016-11-30 14:42:53 -05:00
Nick Mathewson
8da24c99bd Split bridge functions into a new module.
This patch is just:
   * Code movement
   * Adding headers here and there as needed
   * Adding a bridges_free_all() with a call to it.

It breaks compilation, since the bridge code needed to make exactly
2 calls into entrynodes.c internals.  I'll fix those in the next
commit.
2016-11-30 14:42:52 -05:00
teor
04f7944891
Stop discarding downloaded full descriptors when using microdescs for circuits
This affects clients with FetchUselessDescriptors 1.

It might also cause subtle bugs on directory mirrors and authorities,
causing them to consider all full descriptors as failed or old.
2016-11-30 12:20:28 +11:00
teor
65d793fab2
Fetch unknown certificates if FetchUselessDescriptors is true 2016-11-30 11:07:48 +11:00
teor
e5c608e535
Stop discarding consensus flavors and descriptors we wanted to fetch
Instead, fetch and store consensus flavors and descriptors we wanted to
fetch.

And serve them if we are a directory cache (or authority).
2016-11-30 11:06:36 +11:00
Nick Mathewson
cb35a7c271 Merge branch 'maint-0.2.9' 2016-11-01 13:05:45 -04:00
teor
3158777d35
Rename routerstatus_version_supports_ntor to *_supports_extend2_cells
This helps avoid the confusion that caused bug 20472.
Bugfix on commit 10aa913 from #19163 in tor-0.2.9.3-alpha.
2016-10-31 17:02:21 +11:00
overcaffeinated
265d5446fa Automated change to use smartlist_add_strdup
Use the following coccinelle script to change uses of
smartlist_add(sl, tor_strdup(str)) to
smartlist_add_strdup(sl, string) (coccinelle script from nickm
via bug 20048):

@@
expression a;
expression b;
@@
- smartlist_add
+ smartlist_add_strdup
   (a,
- tor_strdup(
   b
- )
  )
2016-10-27 10:26:06 +01:00
Nick Mathewson
8cc528c750 Allow asking a bridge's own descriptor over one-hop connection
When we refactored purpose_needs_anonymity(), we made it so _all_
bridge requests required anonymity.  But that missed the case
that we are allowed to ask a bridge for its own descriptor.

With this patch, we consider the resource, and allow "authority.z"
("your own descriptor, compressed") for a bridge's server descriptor
to be non-anonymous.

Fix for bug 20410; bug not in any released Tor.
2016-10-26 08:32:48 -04:00
Nick Mathewson
12cf73c451 Merge remote-tracking branch 'andrea/ticket19858_v2'
Conflict in entrynodes.c: any_bridge_supports_microdescriptors was
removed in master, and modified in 19858_v2
2016-10-19 17:11:47 -04:00
Nick Mathewson
aae034d13e Write a bunch of module documentation.
This commit adds or improves the module-level documenation for:

  buffers.c circuitstats.c command.c connection_edge.c control.c
  cpuworker.c crypto_curve25519.c crypto_curve25519.h
  crypto_ed25519.c crypto_format.c dircollate.c dirserv.c dns.c
  dns_structs.h fp_pair.c geoip.c hibernate.c keypin.c ntmain.c
  onion.c onion_fast.c onion_ntor.c onion_tap.c periodic.c
  protover.c protover.h reasons.c rephist.c replaycache.c
  routerlist.c routerparse.c routerset.c statefile.c status.c
  tor_main.c workqueue.c

In particular, I've tried to explain (for each documented module)
what each module does, what's in it, what the big idea is, why it
belongs in Tor, and who calls it.  In a few cases, I've added TODO
notes about refactoring opportunities.

I've also renamed an argument, and fixed a few DOCDOC comments.
2016-10-17 10:16:59 -04:00
Nick Mathewson
1ab641a70e Remove version_known, and subtly change the meaning of protocols_known 2016-09-26 10:56:53 -07:00
Nick Mathewson
e525f5697f Use protocols to see when EXTEND2 support exists.
(Technically, we could just remove extend2 cell checking entirely,
since all Tor versions on our network are required to have it, but
let's keep this around as an example of How To Do It.)
2016-09-26 10:56:51 -07:00
Nick Mathewson
4df12239f6 Emit and parse protocol lists in router descriptors 2016-09-26 10:56:49 -07:00
Andrea Shepard
006c26f54f Abolish globals in entrynodes.c; relativize guard context to new guard_selection_t structure 2016-09-25 02:11:44 +00:00
Nick Mathewson
bbaa7d09a0 Merge remote-tracking branch 'teor/reject-tap-v6' 2016-08-29 15:02:11 -04:00
Nick Mathewson
5132905419 Merge branch 'maint-0.2.8' 2016-08-24 10:45:11 -04:00
teor
b1ad024d30 Fix path selection on firewalled clients
Signed-off-by: teor <teor2345@gmail.com>
2016-08-24 10:07:47 -04:00
Nick Mathewson
62b239dd9c Merge branch 'maint-0.2.8' 2016-08-22 10:19:15 -04:00
Nick Mathewson
0ba05313d5 Do not pass NULL to log(%s) in dir_server_new.
This bug had existed since 0.2.4.7-alpha, but now that we have
FallbackDirs by default, it actually matters.

Fixes bug 19947; bugfix on 0.2.4.7-alpha or maybe 0.2.8.1-alpha.

Rubiate wrote the patch; teor wrote the changes file.
2016-08-22 01:22:19 -04:00
Andrea Shepard
05853485a4 Debug logging for router/consensus descriptor download resets 2016-08-10 03:34:54 +00:00
Nick Mathewson
a8676b1ede Merge branch 'bug18902_squashed' 2016-07-28 06:59:03 -04:00
Nick Mathewson
4757303873 Fix all -Wshadow warnings on Linux
This is a partial fix for 18902.
2016-07-28 06:58:44 -04:00
teor (Tim Wilson-Brown)
64bf6b70a8 Check that extend_info_from_router is never called on a client 2016-07-26 19:31:05 -04:00
teor (Tim Wilson-Brown)
579a80d4ae
Clients avoid choosing nodes that can't do ntor
If we know a node's version, and it can't do ntor, consider it not running.
If we have a node's descriptor, and it doesn't have a valid ntor key,
consider it not running.

Refactor these checks so they're consistent between authorities and clients.
2016-07-15 09:55:49 +10:00
Nick Mathewson
aaa3129043 Merge remote-tracking branch 'dgoulet/ticket16943_029_05-squashed'
Trivial Conflicts:
	src/or/or.h
	src/or/routerparse.c
2016-07-01 15:29:05 -04:00
David Goulet
d43646e191 prop250: Fix unit tests about the RSA fingerprint check
Code has been changed so every RSA fingerprint for a commit in our state is
validated before being used. This fixes the unit tests by mocking one of the
key function and updating the hardcoded state string.

Also, fix a time parsing overflow on platforms with 32bit time_t

Signed-off-by: David Goulet <dgoulet@torproject.org>
Signed-off-by: George Kadianakis <desnacked@riseup.net>
2016-07-01 14:01:41 -04:00
Nick Mathewson
0531d5155e Merge remote-tracking branch 'teor/bug19530-v2' 2016-07-01 10:00:37 -04:00
Nick Mathewson
903ec20c0b Merge branch 'maint-0.2.8' 2016-07-01 09:54:08 -04:00
teor (Tim Wilson-Brown)
744077dd15
When tor can't find a directory, log less 2016-07-01 14:26:00 +10:00
teor (Tim Wilson-Brown)
516c02b178
Make authority_certs_fetch_missing support bridge hints
This also fixes an issue where bridge clients may have found a
routerstatus for a directory mirror, and connected to it directly.
2016-07-01 14:01:25 +10:00
teor (Tim Wilson-Brown)
f90bfaae8d
Refactor duplicate code in authority_certs_fetch_missing 2016-07-01 14:00:25 +10:00
teor (Tim Wilson-Brown)
d3ca6fe475
Call purpose_needs_anonymity in authority_certs_fetch_missing 2016-07-01 14:00:20 +10:00
teor (Tim Wilson-Brown)
b4dcf56768
Hex-encode raw digest before printing in authority_certs_fetch_missing 2016-07-01 14:00:07 +10:00
teor (Tim Wilson-Brown)
596ccbf839
Refactor authority_certs_fetch_missing to call get_options once 2016-07-01 09:35:27 +10:00
Nick Mathewson
cb54390e0f Merge remote-tracking branch 'andrea/ticket19323_squashed' 2016-06-30 11:44:58 -04:00
Andrea Shepard
657eaee6ae Expose GETINFO download status statics for test suite and make things mockable 2016-06-29 05:55:42 +00:00
Andrea Shepard
18c6e13993 Expose authority certificate download statuses on the control port 2016-06-29 05:55:42 +00:00
Nick Mathewson
d793a988cd Merge branch 'maint-0.2.8' 2016-06-28 11:22:48 -04:00
Nick Mathewson
bc9a0f82b3 whitespace fixes 2016-06-28 11:14:42 -04:00
Nick Mathewson
f87aa4555d Merge remote-tracking branch 'teor/bug18812' into maint-0.2.8 2016-06-28 11:12:51 -04:00
teor (Tim Wilson-Brown)
812fd416ef
Make it clear that fallbacks include authorities
Comment-only change
2016-06-28 14:14:04 +10:00
Nick Mathewson
703254a832 Merge remote-tracking branch 'public/bug15942_v2_alternative' 2016-06-23 09:01:24 -04:00
nikkolasg
568dc27a19 Make base16_decodes return number of decoded bytes
base16_decodes() now returns the number of decoded bytes. It's interface
changes from returning a "int" to a "ssize_t". Every callsite now checks the
returned value.

Fixes #14013

Signed-off-by: David Goulet <dgoulet@torproject.org>
2016-06-20 08:44:58 -04:00
Andrea Shepard
36d45a9f64 Use exponential backoffs for certificate downloads 2016-06-18 16:32:17 +00:00
Andrea Shepard
695b0bd1d5 Implement DL_SCHED_RANDOM_EXPONENTIAL support for download_status_t 2016-06-18 16:32:16 +00:00
Nick Mathewson
4c90cdc0e7 Coverity dislikes (double) (int/int).
When you divide an int by an int and get a fraction and _then_ cast
to double, coverity assumes that you meant to cast to a double
first.

In my fix for -Wfloat-conversion in 493499a339, I
did something like this that coverity didn't like.

Instead, I'm taking another approach here.

Fixes CID 1232089, I hope.
2016-06-13 11:25:19 -04:00
Roger Dingledine
0616fd6fb6 typo/comment/log fixes i found in my sandbox from montreal 2016-06-12 16:14:15 -04:00
Nick Mathewson
d6b2af7a3a Merge branch 'bug19180_easy_squashed' 2016-06-11 10:15:40 -04:00
Nick Mathewson
493499a339 Add -Wfloat-conversion for GCC >= 4.9
This caught quite a few minor issues in our unit tests and elsewhere
in our code.
2016-06-11 10:11:52 -04:00
Nick Mathewson
c19a3d1bf8 Merge branch 'maint-0.2.8' 2016-06-06 10:18:07 -04:00
Nick Mathewson
6eeedc02d8 Use directory_must_use_begindir to predict we'll surely use begindir
Previously, we used !directory_fetches_from_authorities() to predict
that we would tunnel connections.  But the rules have changed
somewhat over the course of 0.2.8
2016-06-02 10:40:39 -04:00
Nick Mathewson
4f1a04ff9c Replace nearly all XXX0vv comments with smarter ones
So, back long ago, XXX012 meant, "before Tor 0.1.2 is released, we
had better revisit this comment and fix it!"

But we have a huge pile of such comments accumulated for a large
number of released versions!  Not cool.

So, here's what I tried to do:

  * 0.2.9 and 0.2.8 are retained, since those are not yet released.

  * XXX+ or XXX++ or XXX++++ or whatever means, "This one looks
    quite important!"

  * The others, after one-by-one examination, are downgraded to
    plain old XXX.  Which doesn't mean they aren't a problem -- just
    that they cannot possibly be a release-blocking problem.
2016-05-30 16:18:16 -04:00