Fix crash introduced in #40020. On startup, tor calls
check_private_dir on the data and key directories. This function
uses open instead of opendir on the received directory. Data and
key directoryes are only opened here, so the seccomp rule added
should be for open instead of opendir, despite the fact that they
are directories.
On an IPv6 reachability failure test, if the address was configured, don't
publish the descriptor and log warn. If the address was auto discovered, still
publish the descriptor.
Closes#33247.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Enum allows us to easily compare what is being returned but also better
semantic to the code.
Related #33247
Signed-off-by: David Goulet <dgoulet@torproject.org>
Now support IPv4 _and_ IPv6.
This also cleans up nicely the function that was moving IPv4 addresses from
uint32_t to tor_addr_t.
Fixes#40058
Signed-off-by: David Goulet <dgoulet@torproject.org>
Without this fix, if an PT forgets to send a USERADDR command, that
results in a connection getting treated as local for the purposes of
rate-limiting.
If the PT _does_ use USERADDR, we still believe it.
Closes ticket 33747.
Previously we tolerated up to 1.5 connections for every relay we
were connected to, and didn't warn if we had fewer than 5
connections total.
Now we tolerate up to 1.5 connections per relay, and up to 4
connections per authority, and we don't warn at all when we have
fewer than 25 connections total.
Fixes bug 33880, which seems to have been provoked by our #17592
change in 0.3.5.
In routerconf_find_ipv6_or_ap(), we check if the returned ORPort is internal
but not for listening. This means that IPv6 [::] is considered internal.
Thus, we can't use it, we have to look directly at the configured address and
port and if they are valid, we do consider that we have a valid IPv6 ORPort
and that we can thus extend in IPv6.
Related #33246
Signed-off-by: David Goulet <dgoulet@torproject.org>
Now that tor automatically binds to IPv4 _and_ IPv6, in order to avoid
breaking configurations, we sanitize the parsed lists for duplicate ORPorts.
It is possible to happen because we still allow this configuration;
ORPort 9888
ORPort [4242::1]:9888
Meaning that the first ORPort value will bind to 0.0.0.0:9888 _and_ [::]:9888
which would lead to an error when attempting to bind on [4242::1]:9888.
However, that configuration is accepted today and thus we must not break it.
To remedy, we now sanitize the parsed list and prioritize an ORPort that has
an explicit address over the global one.
A warning is emitted if such configuration pattern is found. This is only for
the ORPort.
Related to #33246
Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit makes it that if the ORPort is set with a single port, it will
bind to both global listen IPv4 and IPv6 addresses.
To pin an "ORPort <PORT>" to be IPv4 or IPv6, the IPv4Only/IPv6Only flags are
honored thus this will _only_ bind on IPv6 for that port value:
ORPort 9050 IPv6Only
Results in: [::]:9050
ORPort 9051 IPv4Only
Results in: [0.0.0.0]:9051
Attempting to configure an explicit IPv4 address with IPv6Only flag is an
error and vice versa.
Closes#33246
Signed-off-by: David Goulet <dgoulet@torproject.org>
These now (or_port and dir_port) now have "find" names, since they
look at the portcfg first, then at the actual ports from the
listeners.
This is an automated commit, generated by this command:
./scripts/maint/rename_c_identifier.py \
router_get_advertised_or_port routerconf_find_or_port \
router_get_advertised_ipv6_or_ap routerconf_find_ipv6_or_ap \
router_has_advertised_ipv6_orport routerconf_has_ipv6_orport \
router_get_advertised_dir_port routerconf_find_dir_port
