Add an inline helper function that indicates if the cached object contains a
decrypted descriptor or not.
The descriptor object is NULL if tor is unable to decrypt it (lacking client
authorization) and some actions need to be done only when we have a decrypted
object.
This improves code semantic.
Fixes#33458
Signed-off-by: David Goulet <dgoulet@torproject.org>
Given that ed25519 public key validity checks are usually not needed
and (so far) they are only necessary for onion addesses in the Tor
protocol, we decided to fix this specific bug instance without
modifying the rest of the codebase (see below for other fix
approaches).
In our minimal fix we check that the pubkey in
hs_service_add_ephemeral() is valid and error out otherwise.
When a service can not upload its descriptor(s), we have no logs on why. This
adds logging for each possible reason for each descriptors.
That logging is emitted every second so it is rate limited for each reason and
per descriptor.
Closes#33400
Signed-off-by: David Goulet <dgoulet@torproject.org>
When the ONION_CLIENT_AUTH_REMOVE command is given to tor, now also remove the
descriptor associated with the client authorization credentials.
Fixes#33148
Signed-off-by: David Goulet <dgoulet@torproject.org>
Now we use the exact same INTRO2 decrypt logic regardless of whether the
service is an OB instance or not.
The new get_subcredential_for_handling_intro2_cell() function is responsible
for loading the right subcredentials in either case.
This approach saves us a pair of curve25519 operations for every
subcredential but the first. It is not yet constant-time.
I've noted a few places where IMO we should refactor the code so
that the complete list of subcredentials is passed in earlier.
At this commit, the service reads the config file and parse it to finally set
the service config object with the options.
Part of #32709
Signed-off-by: David Goulet <dgoulet@torproject.org>
The hs_parse_address() can not be used without an options_t object existing
since on error it uses the escaped_safe_str() that looks at the options.
This new function won't log and returns an error message in case of failure
that can then be used to log.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Some ".c" files define *_PRIVATE macros, but those macros are
not used in any header file. Delete them.
These changes were created using the "make autostyle" from
32522, and then split into commits.
With v3, the "pending_final_cpath" of a circuit is always NULL which means
that for v3, established client rendezvous circuit waiting for the intro point
to ACK, will always end up timing out quickly.
This can increase the delays to which you connect to a service since in order
to succeed, the rendezvous circuit needs to fully established
(CIRCUIT_PURPOSE_C_REND_JOINED) within the cutoff of the introduction circuit
as well which is these days around 2-3 seconds.
Fixes#32021
Signed-off-by: David Goulet <dgoulet@torproject.org>
