This unit tests validates the use of IPv4 _and_ IPv6 together as in multiple
option Address lines both addresses and hostnames.
Closes#33235
Signed-off-by: David Goulet <dgoulet@torproject.org>
Replace it by find_my_address() everywhere. This changes many parts of the
code that uses it to use a tor_addr_t instead of a plain uint32_t for IPv4.
Many changes to the unit test to also use the new interface.
Part #33233
Signed-off-by: David Goulet <dgoulet@torproject.org>
Series of changes:
1. Rename function to reflect the namespace of the file.
2. Use the new last resolved cache instead of the unused
last_resolved_addr_v4 (which is also removed in this commit).
3. Make the entire code base use the new resolved_addr_is_local() function.
You will notice that this function uses /24 to differentiate subnets where the
rest of tor uses /16 (including documentation of EnforceDistinctSubnets).
Ticket #40009 has been opened for that.
But that the moment, the function keeps looking at /24.
Part of #33233
Signed-off-by: David Goulet <dgoulet@torproject.org>
In order to transition smoothly, maek resolve_my_address_v4() call the new
fancy find_my_address() with AF_INET.
Next commits should remove the use of resolve_my_address_v4() accross the code
to use find_my_address().
This commit is so the unit tests would be more easily fixed and port to the
new find_my_address() internals.
Part of #33233.
Signed-off-by: David Goulet <dgoulet@torproject.org>
With prop312, we want to support IPv4 and IPv6 thus multiple Address statement
(up to 2) will be accepted.
For this, "Address" option becomes a LINELIST so we can properly process the
IPv4 or/and IPv6.
Part of #33233
Signed-off-by: David Goulet <dgoulet@torproject.org>
Add tests for relays sending IPv6 extend cells in
circuit_send_next_onion_skin().
Clients also use this code, check that they can only extend over IPv4
(for now).
Part of 33222.
GCC added an implicit-fallthrough warning a while back, where it
would complain if you had a nontrivial "case:" block that didn't end
with break, return, or something like that. Clang recently added
the same thing.
GCC, however, would let you annotate a fall-through as intended by
any of various magic "/* fall through */" comments. Clang, however,
only seems to like "__attribute__((fallthrough))". Fortunately, GCC
accepts that too.
A previous commit in this branch defined a FALLTHROUGH macro to do
the right thing if GNUC is defined; here we replace all of our "fall
through" comments with uses of that macro.
This is an automated commit, made with the following perl one-liner:
#!/usr/bin/perl -i -p
s#/\* *falls? ?thr.*?\*/#FALLTHROUGH;#i;
(In order to avoid conflicts, I'm applying this script separately to
each maint branch. This is the 0.4.3 version.)
Move a series of function from config.c into that new file which is related to
address resolving.
Part of #33789
Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit moves router_pick_published_address() and the related helper
functions into the new file.
The log_addr_has_changed() function has been made public in router.h so we can
use it in relay_resolve_addr.c.
This is a refactoring as part of Sponsor 55. Only code movement at this
commit.
Part of #33789
Signed-off-by: David Goulet <dgoulet@torproject.org>
Split "can extend over IPv6" and "has advertised IPv6 ORPort" into
separate functions. They currently have the same result, but this may
change in 33818 with ExtendAllowIPv6Addresses.
Part of 33817.
