When reloading tor, check if our the configured client authorization have
changed from what we previously had. If so, republish the updated descriptor.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Previously, the validation by decoding a created descriptor was disabled
because the interface had to be entirely changed and not implemented at the
time.
This commit re-enabled it because it is now implemented.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Parse the client authorization section from the descriptor, use the client
private key to decrypt the auth clients, and then use the descriptor cookie to
decrypt the descriptor.
Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit refactors the existing decryption code to make it compatible with
a new logic for when the client authorization is enabled.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Because this secret data building logic is not only used by the descriptor
encoding process but also by the descriptor decoding, refactor the function to
take both steps into account.
Signed-off-by: David Goulet <dgoulet@torproject.org>
The new ClientOnionAuthDir option is introduced which is where tor looks to
find the HS v3 client authorization files containing the client private key
material.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Previously, we encrypted the descriptor without the descriptor cookie. This
commit, when the client auth is enabled, the descriptor cookie is always used.
I also removed the code that is used to generate fake auth clients because it
will not be used anymore.
Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit tests that the descriptor building result, when the client
authorization is enabled, includes everything that is needed.
Signed-off-by: David Goulet <dgoulet@torproject.org>
We need to generate all the related keys when building the descriptor, so that
we can encrypt the descriptor.
Signed-off-by: David Goulet <dgoulet@torproject.org>
The OpenSSL "RSA" object is currently 408 bytes compares to the ASN.1 encoding
which is 140 for a 1024 RSA key.
We save 268 bytes per descriptor (routerinfo_t) *and* microdescriptor
(microdesc_t). Scaling this to 6000 relays, and considering client usually
only have microdescriptors, we save 1.608 MB of RAM which is considerable for
mobile client.
This commit makes it that we keep the RSA onion public key (used for TAP
handshake) in ASN.1 format instead of an OpenSSL RSA object.
Changes is done in both routerinfo_t and microdesc_t.
Closes#27246
Signed-off-by: David Goulet <dgoulet@torproject.org>
By removing Tor2Web, there is no way a client can be non anonymous so we
remove that function and the callsites.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Because we just removed Tor2web support, the need_specific_rp is not needed
anymore when cannibalizing a circuit.
Signed-off-by: David Goulet <dgoulet@torproject.org>
