We found this in #40076, after we started using buf_move_all() in
more places. Fixes bug #40076; bugfix on 0.3.3.1-alpha. As far as
I know, the crash only affects master, but I think this warrants a
backport, "just in case".
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.
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>
The need for casting negative syscall arguments depends on the
glibc version. This affects the rules for the openat syscall which
uses the constant AT_FDCWD that is defined as a negative number.
This commit adds logic to only apply the cast when necessary, on
glibc versions from 2.27 onwards.
Different versions of glibc use either open or openat for the
opendir function. This commit adds logic to use the correct rule
for each glibc version, namely:
- Until 2.14 open is used
- From 2.15 to to 2.21 openat is used
- From 2.22 to 2.26 open is used
- From 2.27 onwards openat is used
The need for casting negative syscall arguments depends on the
glibc version. This affects the rules for the openat syscall which
uses the constant AT_FDCWD that is defined as a negative number.
This commit adds logic to only apply the cast when necessary, on
glibc versions from 2.27 onwards.
Instead of replacing connection_t.{addr,port} with a canonical
orport, and tracking the truth in real_addr, we now leave
connection_t.addr alone, and put the canonical address in
canonical_orport.
Closes#40042Closes#33898
(This is not fully general yet: we only pick randomly among
_supported_ addresses, and each extendinfo contains at most one IPv4
address and at most one IPv6 address, no matter what the extend cell
had.)
This change will help dual-stack relays do IPv6 reachability tests,
in theory, by having them sometimes do IPv4 connections and
sometimes do ipv6 connections.
Closes ticket 33220.
Create a doc/tracing/ directory to contain a top level README.md which is the
previously named Tracing.md and add the EventsCircuit.md which describes the
circuit subsystem tracing events in depth.
Closes#40036
Signed-off-by: David Goulet <dgoulet@torproject.org>
This patch ensures that we strip "\r" characters on both Windows as well
as Unix when we read text files. This should prevent the issue where
some Tor state files have been moved from a Windows machine, and thus
contains CRLF line ending, to a Unix machine where only \n is needed.
We add a test-case to ensure that we handle this properly on all our
platforms.
See: https://bugs.torproject.org/tpo/core/tor/33781
