mirror of
https://git.kernel.org/pub/scm/utils/kernel/kmod/kmod.git
synced 2024-12-11 20:53:53 +08:00
723 lines
24 KiB
Plaintext
723 lines
24 KiB
Plaintext
kmod 29
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=======
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- Improvements
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- Add support to use /usr/local as a place for configuration files. This makes it easier
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to install locally without overriding distro files.
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- Bug fixes
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- Fix `modinfo -F` when module is builtin: when we asked by a specific field from modinfo,
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it was not working correctly if the module was builtin
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- Documentation fixes on precedence order of /etc and /run: the correct order is
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/etc/modprobe.d, /run/modprobe.d, /lib/modprobe.d
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- Fix the priority order that we use for searching configuration files. The
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correct one is /etc, /run, /usr/local/lib, /lib, for both modprobe.d
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and depmo.d
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- Fix kernel command line parsing when there are quotes present. Grub
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mangles the command line and changes it from 'module.option="val with
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spaces"' to '"module.option=val with spaces"'. Although this is weird
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behavior and grub could have been fixed, the kernel understands it
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correctly for builtin modules. So change libkmod to also parse it
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correctly. This also brings another hidden behavior from the kernel:
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newline in the kernel command line is also allowed and can be used to
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separate options.
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- Fix a memory leak, overflow and double free on error path
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- Fix documentation for return value from kmod_module_get_info(): we
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return the number of entries we added to the list
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- Fix output of modules.builtin.alias.bin index: we were writing an empty file due to
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the misuse of kmod_module_get_info()
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- Infra/internal
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- Retire integration with semaphoreci
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- Declare the github mirror also as an official upstream source: now besides accepting
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patches via mailing list, PRs on github are also acceptable
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- Misc improvements to testsuite, so we can use it reliably regardless
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of the configuration used: now tests will skip if we don't have the
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build dependencies)
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kmod 28
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=======
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- Improvements
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- Add Zstandard to the supported compression formats using libzstd
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(pass --with-zstd to configure)
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- Bug fixes
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- Ignore ill-formed kernel command line, e.g. with "ivrs_acpihid[00:14.5]=AMD0020:0"
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option in it
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- Fix some memory leaks
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- Fix 0-length builtin.alias.bin: it needs at least the index header
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kmod 27
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=======
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- Improvements
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- Link to libcrypto rather than requiring openssl
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- Print a better error message when kernel doesn't support module unload
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- Use PKCS#7 instead of CMS for parsing module signature to be
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compatible with LibreSSL and OpenSSL < 1.1.0
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- Teach modinfo to parse modules.builtin.modinfo. When using Linux kernel
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>= v5.2-rc1 it's possible to get module information from this new file. Now
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modinfo is able to show it instead of an error message that the module is
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built-in:
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Before:
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$ modinfo ext4
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modinfo: ERROR: Module ext4 not found.
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After:
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$ modinfo ext4
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name: ext4
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filename: (builtin)
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softdep: pre: crc32c
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license: GPL
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description: Fourth Extended Filesystem
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author: Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others
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alias: fs-ext4
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alias: ext3
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alias: fs-ext3
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alias: ext2
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alias: fs-ext2
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- Bug fixes
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- Do not link python bindings with libpython to be compatible with
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python3.8
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- Fix module removal with `modprobe -r` when a dependency is built-in.
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Now it properly ignores them and proceed with removal of other
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dependencies
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- Fix propagation of return code from install/remove commands to the
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the probe function. The return values of kmod_module_probe_insert_module()
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have very specific meanings, do not confuse the caller by return codes
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from system()
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- Fix softdep config parsing leading to buffer overflow
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kmod 26
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=======
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- Improvements
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- Add more error-checking in library functions and remove warnings on newer
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toolchains
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- Depmod now handles parallel invoctions better by protecting the temporary
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files being used
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- Improvements to testsuite and added tests to check the our behavior
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regardless of the features enabled in the kernel, or libraries we link to
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- Teach the --show-exports option to modprobe. This works similarly to
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--show-modversions, but it reports the exported symbols from that module.
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Under the hood this reads the .symtab and .strtab section rather than
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__versions so it shows useful data even if kernel is configured without
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modversions (CONFIG_MODVERSIONS)
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- Teach pkcs7 parsing to modinfo by using openssl. This allows modinfo to
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correctly parse the signature appended to a module by the kernel build
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system when configured with CONFIG_MODULE_SIG_ALL, or when externally
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signed by the distro. Traditionally modules were signed and a struct
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was appended together with the signature to the end of the module.
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This has changed on the kernel for pkcs#7 and now the structure isn't
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filled out with useful information. So we have to parse the signature
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block in order to return useful data to the user.
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If kmod is linked with openssl we parse the signature and return the
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fields as we do for other signatures. An example of the relevant part
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on the output of modinfo is below:
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Before:
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sig_id: PKCS#7
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signer:
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sig_key:
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sig_hashalgo: md4
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After:
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sig_id: PKCS#7
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signer: Fedora kernel signing key
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sig_key: 51:C4:0C:6D:7E:A5:6C:D8:8F:B4:3A:DF:91:78:4F:18:BC:D5:E4:C5
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sig_hashalgo: sha256
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If kmod is not linked to openssl we just start printing "unknonwn" in the
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sig_hashalgo field rather than the bogus value.
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kmod 25
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=======
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- Improvements
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- Add module signature to modinfo output
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- Add support for external directories in depmod: now there's a new
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"external" keyword parsed by depmod when calculating the dependencies.
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It allows to add modules to other directories which are not relative
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to where the modules are commonly installed. This results in
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modules.dep and friends now understanding absolute paths rather than
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relative paths only. For more information see depmod.d(1).
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- Add support for CONFIG_MODULE_REL_CRCS
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- Add missing documentation references in man pages
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- Handle the case in which module has a .TOC symbol already while
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calculating dependencies
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- Improve testsuite and allow to use mkosi to run testsuite in different
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distros
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kmod 24
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=======
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- Improvements:
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- Add more information on dependency loop
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- Sanitize use of strcpy and allow to grow from small strings on stack
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(common case) to bigger strings on heap when needed
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- Bug fixes
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- Fix wrong dependency loops being reported by depmod
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- Fix crashes when reporting dependency loops
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- Fix parsing kernel command line containing quotes
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- Fix leaks on error paths
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kmod 23
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=======
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- Improvements:
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- Don't add comment to modules.devname if it would otherwise be empty
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to play nice with tools detecting empty files
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- Allow building with BSD sed, that doesn't have -E flag
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- Ignore .TOC. symbols in depmod parsing as it's for PPC64 the
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equivalent of _GLOBAL_OFFSET_TABLE_
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- Teach modinfo about PKCS#7 module signatures: it doesn't add any
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other info besides telling the user the module is signed since
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kernel doesn't add other info on the module section
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- Bug fixes
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- Fix -s and -p compat options to insmod triggering force flag
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- Fix long lines from /proc/modules not being handled correctly by
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kmod_module_new_from_loaded() and kmod_module_get_size() and several
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other library functions that use them
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- Fix crash on modinfo while checking for available signature of
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unknown type
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- Fix documentation generation with gtk-doc
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kmod 22
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=======
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- Tools:
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- Change defaul log level for tools to WARNING rather than ERROR and update
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some log levels for current messages
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- depmod doesn't fallback to uname if a bad version is passed in the command
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line anymore. We just exit with an error.
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- insmod was taught the -f flag, just like in modprobe. It was previously
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silently ignoring it.
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- libkmod
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- New kmod_get_dirname() API to get the module directory set in the
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context
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- Bug fixes:
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- Fix return code in error path of kmod_module_insert_module(). We were
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previously returning ENOSYS rather than ENOENT.
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kmod 21
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=======
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- New features:
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- kmod tool started to learn the "insert" and "remove" commands that
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are the simplified versions of the older modprobe tool. These
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commands are still work in progress so they are hidden behind a
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--enable-experimental flag during build. It should not be enabled
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unless you know what you're doing.
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- kmod tool now prints the relevant configuration options it was built
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with when the "--version" argument is passed. This helps to mitigate
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problems for example when the user is trying to load a compressed
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module but kmod was built without support for the compression method.
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- Improvements to testsuite:
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- Cache built modules so it is easier to run "make check" on build
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servers by distro maintainers. If kmod is configured with
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--disable-test-modules the modules from cache will be used by
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"make check". No changes to the tests are needed and all of them
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can run fine.
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kmod 20
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=======
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- Bug fixes:
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- Handle bogus values from ELF, making sure they don't overflow while
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parsing the file
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- Fix leak in depmod when -b flag is passed multiple times
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- Multiple minor fixes from static analysis by coverity and
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clang-analyze
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- Fix race between loading modules and checking if it's loaded in the
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kernel
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- New features:
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- There's a change in behavior regarding builtin modules: we now only
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consider as builtin those that are present in modules.builtin index.
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Previously we were also checking the presence of
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/sys/module/<module-name>, but this is racy and only modules that
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contain parameters are the ones creating a directory in sysfs.
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Now some commands will start to fail, e.g. "modprobe vt". Since vt
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can't be compiled as a module it's not present in modules.builtin
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index. Previously we would report at as builtin, but now we fail
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because we couldn't find the module.
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- Improvements:
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- Integration of gcov into the build. Currently libkmod is at ~70%
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covered and tools at ~50% by tests in the testsuite. Utility
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functions and structures in shared have more than 90% of coverage.
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- Upload build to coverity
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- Improvements to testsuite:
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- Fix parsing return codes of init_module() calls
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- Add tests for utility functions in shared/
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- Add tests for kmod_module_remove_module()
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- Add playground, in which our own modules are compiled
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- Port all tests to use modules from module-playground instead of
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copying prebuilt modules to the repository
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- Properly handle binaries that exit with no output
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- Besides comparing the output of commands, allow to copy to
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stdout/stderr
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kmod 19
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=======
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- Bug fixes:
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- Fix missing CLOEXEC in library
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- Fix error message while opening kmod's index
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- New features:
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- Add kmod(8) man page
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- Allow to build with libc's without be32toh()
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- Move code around separating common code and data structures into a
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shared directory. This allows to share more code between library and
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tools, making the binary size of tools smaller.
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- Clarify tools vs library licenses
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- static-nodes: when writing in tmpfiles format, indicate that
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creation of static nodes should only happen at boot. This is used and
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required by systemd-217+.
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- Improvements to testsuite:
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- Add tests for newly created shared/ code
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- Improve how tests are declared so there's less boilerplate code for
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each test.
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kmod 18
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=======
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- Bug fixes:
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- Fix leaks in error paths
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- Fix use-after-free in hash implementation causing a wrong index to be
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generated by depmod with out-of-tree modules
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- New features:
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- Calling depmod with modules creating a dependency loop will now make
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depmod return an error and not update the indexes. This is to protect
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the current index not being overridden by another index that may cause
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a boot failure, depending on the buggy module. It's a necessary
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change in behavior regarding previous kmod releases and
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module-init-tools. The error message was also improved to output
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the modules that caused the dependency cycle.
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- Improvements to testsuite:
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- Fix and improve expected-fail test
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- Add tests for hashmap implementation
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kmod 17
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=======
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- Bug fixes:
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- Fix matching a "." in kernel cmdline, making garbage in the command
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line be parsed as kmod options
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- Fix man pages to clarify we don't fallback to parsing modules.dep
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but instead we depend on modules.dep.bin (generated by depmod) to
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be present
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- Fix ELF parsing on 32 bit systems assigning the wrong class.
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- Fix partial matches of search directives in depmod. Previously having
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a line in depmod.conf such as "search foo foobar built-in" would cause
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unpretictable results because foo is a partial match of foobar as well.
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- Fix unaligned access in modinfo when getting the signature from a
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module
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- Make sure softdeps are treated as optional dependencies
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- New features:
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- Accept special files given to "-C" switch in modprobe. This way it's
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possible to skip system configuration with "modprobe -C /dev/null"
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- Do not require xsltproc on released tarballs
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- Don't use Werror anymore
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- Add experimental python bindings, merged from python-kmod repository
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(https://github.com/agrover/python-kmod)
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- Parse softdeps exported by the kernel as
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/lib/modules/`uname -r`/modules.softdep
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- Improvements to testsuite:
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- Check the list of loaded modules after a test
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kmod 16
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=======
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- Bug fixes:
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- Fix usage of readdir_r()
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- Add some missing checks for memory allocation errors
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- New features:
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- Remove option from libkmod to allow waiting on module removal if
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the module is being used. It's dangerous since it can block the
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caller indefinitely.
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- Improve compatibility with musl libc
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- Add fallback implementation for compilers without _Static_assert(),
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e.g. gcc < 4.6
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- Minor optimizations to the hash table
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- Make depmod warn if a module has incorrect devname specification
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- Use cleanup attribute
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kmod 15
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=======
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- Bug fixes:
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- kmod static-nodes doesn't fail if modules.devname isn't available
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- Fix getting boolean parameter from kernel cmdline in case the value
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is omitted
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- Fix some mkdir_p() corner cases (used in testsuite and static-nodes)
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- New features:
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- kmod static-nodes creates parent directories if given a -o option
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- kmod binary statically links to libkmod - if distro is only interested
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in the kmod tool (for example in an initrd) it can refrain from
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installing the library
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- Add shell completion for kmod tool
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kmod 14
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=======
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- Bug fixes:
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- Fix some format strings
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- Protect against NULL being passed around to index
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- Avoid calling syscall() with -1 when finit_module() is not available,
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since this doesn't always work
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- Fix not being able to remove alias due to checking the module's
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refcount
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- Minor fixes and refactors
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- New features:
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- Improve libkmod documentation, particularly on how flags are dealt
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with.
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- Remove ability to build a static libkmod
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- Add static-nodes command to kmod that parses modules.devname
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generating output in useful formats
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kmod 13
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=======
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- Bug fixes:
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- Add the long option --symbol-prefix option to depmod (it was absent)
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and fix its behavior
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- Don't abort if there's a bogus line in configuration file like "alias
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psmouse off". Some distros are carrying this since the days of
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modutils
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- New features:
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- Add support for finit_module(2). If the module is load straight from
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the disk and without compression we use finit_module() syscall when
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available, falling back to init_module() otherwise
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- kmod_module_get_info() also returns the signature if the module is
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signed and modinfo uses it
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- Use secure_getenv if available
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- rmmod understands builtin modules, just like modprobe does
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- Improve compatibility with musl-libc
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- Test cases exit with success when receiving a signal if they are
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xfail tests
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kmod 12
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=======
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- Bug fixes:
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- Fix removing vermagic from module when told to force load a module
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- Fix removing __versions section when told to force load a module: we
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need to mangle the section header, not the section.
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- modinfo no longer fails while loading a module from file when path
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contains ".ko" substring
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kmod 11
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=======
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- Improvements to testsuite:
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- Fix testsuite defining symbols twice on 32 bit systems
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- Allow to check generated files against correct ones
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- New features:
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- libkmod now keeps a file opened after the first call to
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kmod_module_get_{info,versions,symbols,dependency_symbols}. This
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reduces significantly the amount of time depmod tool takes to
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execute. Particularly if compressed modules are used.
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- Remove --with-rootprefix from build system. It was not a great idea
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after all and should not be use since it causes more harm then
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benefits.
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- Hide --wait option on rmmod. This feature is being targeted for
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removal from kernel. rmmod still accepts this option, but it's hidden
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now: man page and usage() say nothing about it and if it's used,
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user will get a 10s sleep. This way we can check and help if anyone
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is using this feature.
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- Refactor message logging on all tools, giving proper prefix, routing
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everything to syslog when asked for, etc.
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- Bug fixes:
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- Fix parsing of modules.order when using compressed modules
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- Usage messages go to stdout instead of stderr
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- Fix memory leak in hash implementation
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kmod 10
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=======
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- New features:
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- Read coresize from /sys if supported
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- Add flag to kmod_module_probe_insert() to apply blacklisting during
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probe only if mod is an alias. Now modprobe uses this flag by default.
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This is needed to fix a change in behavior regarding module-init-tools
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and ultimately makes us loading a blacklisted module.
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- Better formatting in man pages
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- Add option to disable building man pages at build time
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- Fixes in the testsuite and refactoring of LDPRELOAD'ed libraries
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- Re-licensing testsuite as LGPL
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kmod 9
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======
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- Improvements to the testsuite:
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- Check for correct handling of softdep loops
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- Check for correct handling of install command loops
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- Bug fixes:
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- Fix build with compilers that don't support --gc-sections
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- Handle errors when dealing with gzipped modules
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- depmod now handles errors while writing indices, so it doesn't end up
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with a corrupted index without telling the user
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kmod 8
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|
======
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- No new features, small bug fixes only.
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|
- Fix a bug in "modprobe -c" output: be compatible with
|
|
module-init-tools
|
|
|
|
- Give a useful error message when init_module fails due to bad
|
|
parameter or unknown symbols
|
|
|
|
- Fix doc generation
|
|
|
|
kmod 7
|
|
======
|
|
|
|
- Re-order dirs for configuration files to match the change in systemd and
|
|
udev: now the priority is:
|
|
1. /etc/modprobe.d
|
|
2. /run/modprobe.d
|
|
3. /lib/modprobe.d
|
|
|
|
- Fix setting CFLAGS/LDFLAGS in build system. This prevented us from not
|
|
allowing the user to set his preferences.
|
|
|
|
- Bug fixes:
|
|
- Return same error codes of module-init-tools when removing modules
|
|
with modprobe
|
|
- Fix builtin output in "--show-depends" when target kernel is not the
|
|
same of the running kernel
|
|
- 'modprobe -r' always look at all command line arguments
|
|
- Fix '-q' usage in modprobe
|
|
|
|
kmod 6
|
|
======
|
|
|
|
- New API in libkmod:
|
|
- kmod_module_apply_filter(): a generic function to apply filters in a
|
|
list of modules. This deprecates the use of
|
|
kmod_module_get_filtered_blacklist()
|
|
|
|
- More tests in testsuite
|
|
|
|
- Add compatibility with uClibc again
|
|
|
|
- Lookup modules.builtin.bin to decide if a module is built in kernel
|
|
|
|
- Downgrade some log messages so we don't annoy people with useless messages
|
|
|
|
- Bug fixes:
|
|
- Flag --ignore-loaded was not being properly handled
|
|
- Infinite loop with softdeps
|
|
- Infinite loop with dumb user configuration with install commands
|
|
- Fix leak in index when there's a partial match
|
|
|
|
- Move repository and tarballs to kernel.org
|
|
|
|
kmod 5
|
|
======
|
|
|
|
- Break libkmod's API to insert a module like modprobe does. It now accepts
|
|
extra an extra argument to print its action and acceptable flags were
|
|
sanitized.
|
|
|
|
- Share more code between modprobe and libkmod: using the new version of
|
|
kmod_module_probe_insert_module() it's possible to share a great amount of
|
|
code between modprobe and libkmod
|
|
|
|
- modprobe no longer works with paths: it only accepts module names and/or
|
|
aliases now.
|
|
|
|
- testsuite was added to repository, allowing automated tests to be run and
|
|
easing the way bugs are reproduced.
|
|
|
|
- modprobe: when dumping configuration ('-c' option) separate config
|
|
and indexes by adding a commented line between them.
|
|
|
|
- Fix bugs wrt normalizing aliases and module names
|
|
|
|
- Fix bug wrt inserting an alias that resolves to multiple modules: we should
|
|
not stop on the first error, but rather continue to try loading other
|
|
modules.
|
|
|
|
- Fix unaligned memory access in hash function, causing depmod to output wrong
|
|
information in ARMv5
|
|
|
|
- Fix man page build and install: now they are only installed if tools are
|
|
enabled
|
|
|
|
kmod 4
|
|
======
|
|
|
|
- New APIs in libkmod to:
|
|
- Get configuration lists: blacklists, install commands, remove
|
|
commands, aliases, options and softdeps
|
|
- Dump indexes
|
|
|
|
- Several bugs fixed in libkmod, modprobe, depmod and modinfo
|
|
|
|
- API documentation: if configure with run with --enable-gtk-doc, the API doc
|
|
will be generated by make. Gtk-doc is required for that.
|
|
|
|
- Man pages are built, which replace man pages from module-init-tools
|
|
|
|
- 'include' and 'config' options in *.conf files were deprecated
|
|
|
|
- configure is not run by autogen.sh. Instead, a common set of options is
|
|
printed. If you are hacking on kmod, consider using bootstrap-configure
|
|
script.
|
|
|
|
- 'modprobe -c' works as expected now. As opposed to module-init-tools, it
|
|
dumps the parsed configuration, not only the file contents.
|
|
|
|
kmod 3
|
|
======
|
|
|
|
- New APIs in libkmod to:
|
|
- Get symbols from module, parsing the ELF section
|
|
- Get dependency symbols
|
|
- Check if resources are still valid or if libkmod must be reloaded
|
|
- Insert module like modprobe, checking (soft-)dependencies, commands,
|
|
blacklist. It can run commands by itself and to call a callback
|
|
function.
|
|
|
|
- Support to load modules compressed with xz
|
|
|
|
- Tools are now bundled together in a single tool called kmod. It can be
|
|
called using symlinks with the same names as tools from module-init-tools.
|
|
E.g: /usr/bin/lsmod -> /usr/bin/kmod. With this we are aiming to complete a
|
|
1:1 replacement of module-init-tools.
|
|
|
|
- The only missing tool, depmod, was added to kmod together with the necessary
|
|
APIs in libkmod.
|
|
|
|
- If a program using libkmod runs for a long time, as for example udev, it must
|
|
check if it doesn't have to re-load libkmod. A new helper function was added
|
|
in libkmod to check if context is still valid and udev is already using it.
|
|
|
|
- An 'unaligned access' bug was fixed. So those architecture that does not
|
|
handle unaligned access can use kmod, too.
|
|
|
|
kmod 2
|
|
======
|
|
|
|
Some bugs fixed: the worst of them was with an infinite loop when an alias
|
|
matched more than one module.
|
|
|
|
- New APIs in libkmod to:
|
|
- Get soft dependencies
|
|
- Get info from module files parsing ELF
|
|
- Get modversions from files parsing ELF
|
|
|
|
- Support to load gzipped kernel modules: kmod can be compiled with support to
|
|
gzipped modules by giving the --enable-zlib flag
|
|
|
|
- Support to forcefully load modules, both vermagic and modversion
|
|
|
|
- Support to force and nowait removal flags
|
|
|
|
- Configuration files are parsed in the same order as modprobe: files are
|
|
sorted alphabetically (independently of their dir) and files with the same
|
|
name obey a precedence order
|
|
|
|
- New tool: kmod-modinfo
|
|
|
|
- kmod-modprobe gained several features to be a 1:1 replacement for modprobe.
|
|
The only missing things are the options '--showconfig' and '-t / -l'. These
|
|
last ones have been deprecated long ago and they will be removed from
|
|
modprobe. A lot of effort has been put on kmod-modprobe to ensure it
|
|
maintains compabitility with modprobe.
|
|
|
|
- linux-modules@vger.kernel.org became the official mailing list for kmod
|
|
|
|
kmod 1
|
|
======
|
|
|
|
First version of kmod and its library, libkmod.
|
|
|
|
In the libkmod it's currently possible to:
|
|
- List modules currently loaded
|
|
- Get information about loaded modules such as initstate, refcount,
|
|
holders, sections, address and size
|
|
- Lookup modules by alias, module name or path
|
|
- Insert modules: options from configuration and extra options can be
|
|
passed, but flags are not implemented, yet
|
|
- Remove modules
|
|
- Filter list of modules using blacklist
|
|
- For each module, get the its list of options and install/remove
|
|
commands
|
|
- Indexes can be loaded on startup to speedup lookups later
|
|
|
|
Tools provided with the same set of options as in module-init-tools:
|
|
- kmod-lsmod
|
|
- kmod-insmod
|
|
- kmod-rmmod
|
|
- kmod-modprobe, with some functionality still missing (use of softdep,
|
|
dump configuration, show modversions)
|