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Fixes #21715
Signed-off-by: David Goulet <dgoulet@torproject.org>
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OS X's ar(1) doesn't allow us to create an archive with no object files.
This patch adds a stub file with a stub function in it to make OS X
happy again.
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Also, fix two instances of runaway LCOV_EXCL_START lines.
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Since we have a streaming API for each compression backend, we don't
need a non-streaming API for each: we can build a common
non-streaming API at the front-end.
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This commit adds the src/trace directory containing the basics for our tracing
subsystem. It is not used in the code base. The "src/trace/debug.h" file
contains an example on how we can map our tor trace events to log_debug().
The tracing subsystem can only be enabled by tracing framework at compile
time. This commit introduces the "--enable-tracing-debug" option that will
make all "tor_trace()" function be maped to "log_debug()".
Closes #13802
Signed-off-by: David Goulet <dgoulet@torproject.org>
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That log statement can be triggered if somebody on the Internet behaves badly
which is possible with buggy implementation for instance.
Fixes #21293
Signed-off-by: David Goulet <dgoulet@torproject.org>
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This patch renames the `compress` parameter of the
`tor_zlib_compress_new()` function to `_compress` to avoid shadowing the
`compress()` function in zlib.h.
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See: https://bugs.torproject.org/21662
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This patch splits up `tor_compress_memory_level()` into static functions
in the individual compression backends, which allows us to tune the
values per compression backend rather than globally.
See: https://bugs.torproject.org/21662
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Use a switch-statement in `tor_compress()` and `tor_uncompress()` for
the given `compress_method_t` parameter. This allows us to have the
compiler detect if we forgot add a handler in these functions for a
newly added enumeration value.
See: https://bugs.torproject.org/21662
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This patch ensures that Tor checks if a given compression method is
supported before printing the version string when calling `tor
--library-versions`.
Additionally, we use the `tor_compress_supports_method()` to check if a
given version is supported for Tor's start-up version string, but here
we print "N/A" if a given compression method is unavailable.
See: https://bugs.torproject.org/21662
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This patch adds `tor_compress_version_str()` and
`tor_compress_header_version_str()` to get the version strings of the
different compression schema providers. Both functions returns `NULL` in
case a given `compress_method_t` is unknown or unsupported.
See: https://bugs.torproject.org/21662
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This patch adds support for checking if a given `compress_method_t` is
supported by the currently running Tor instance using
`tor_compress_supports_method()`.
See: https://bugs.torproject.org/21662
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This patch adds the `tor_compress_get_total_allocation()` which returns
an approximate number of bytes currently in use by all the different
compression backends.
See: https://bugs.torproject.org/21662
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See: https://bugs.torproject.org/21662
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See: https://bugs.torproject.org/21662
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See: https://bugs.torproject.org/21662
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This patch adds support for enabling support for Zstandard to our configure
script. By default, the --enable-zstd option is set to "auto" which means if
libzstd is available we'll build Tor with Zstandard support.
See: https://bugs.torproject.org/21662
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See: https://bugs.torproject.org/21662
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This patch adds support for enabling support for LZMA to our configure
script. By default, the --enable-lzma option is set to "auto" which
means if liblzma is available we'll build Tor with LZMA support.
See: https://bugs.torproject.org/21662
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This patch changes the way `tor_compress_new()`,
`tor_compress_process()`, and `tor_compress_free()` handles different
compression methods. This should give us compiler warnings in case an
additional compression method is added, but the developer forgets to add
handlers in the three aforementioned functions.
See https://bugs.torproject.org/21663
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See https://bugs.torproject.org/21663
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See https://bugs.torproject.org/21663
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This patch refactors the `torgzip` module to allow us to extend a common
compression API to support multiple compression backends.
Additionally we move the gzip/zlib code into its own module under the
name `compress_zlib`.
See https://bugs.torproject.org/21664
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The item referred to the cdm_ht_set_status() case where the item was
not already in the hashtable. But that already happens naturally
when we scan the directory on startup... and we already have a test
for that.
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This brings us back up to ~94% coverage
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Found by previous test.
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