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* introduce new option restrict-namespacesLibravatar smitsohu2022-07-23
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* protocol filter: add x32 ABI handlingLibravatar smitsohu2022-07-19
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* makefiles: add generated files as dependenciesLibravatar Kelvin M. Klann2022-06-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the previous commit ("makefiles: stop failing when config.mk does not exist", 2022-06-23), make will not immediately fail when trying to build a target without having the proper compile-time flags (which are defined on common.mk). For example, when running the command below: make distclean && make It will throw an error only after (mis-)compiling multiple objects. So add a dependency on config.mk on every target that uses output variables (such as @NAME@ / $(NAME)) on its recipe. And add a dependency on config.sh on targets that call shell scripts that use output variables (such as @NAME@ / $NAME). Also, add a recipe for config.mk / config.sh telling to run ./configure, to make it a bit more obvious just in case. With this commit, make will abort earlier, by detecting that the config.mk / config.sh dependency does not exist. This happens before trying to execute the recipe. This also makes the dependencies more accurate, since if config.mk (which defines some CFLAGS) is changed, the CFLAGS may also have changed, so a target that uses CFLAGS should probably be considered out of date in this case anyway. Relates to #5140.
* build: reduce autoconf input files from 32 to 2Libravatar Kelvin M. Klann2022-06-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Configure summary: autoconf essentially only parses configure.ac and generates the configure script (that is, the "./configure" shell script). The latter is what actually checks what is available on the system and internally sets the value of the output variables. It then, for every filename foo in AC_CONFIG_FILES (and for every output variable name BAR in AC_SUBST), reads foo.in, replaces every occurrence of `@BAR@` with the value of the shell variable `$BAR` and generates the file foo from the result. After this, configure is finished and `make` could be executed to start the build. Now that (as of #5140) all output variables are only defined on config.mk.in and on config.sh.in, there is no need to generate any makefile nor any other mkfile or shell script at configure time. So rename every "Makefile.in" to "Makefile", mkdeb.sh.in to mkdeb.sh, src/common.mk.in to src/common.mk and leave just config.mk and config.sh as the files to be generated at configure time. This allows editing and committing all makefiles directly, without potentially having to run ./configure in between. Commands used to rename the makefiles: $ git ls-files -z -- '*Makefile.in' | xargs -0 -I '{}' sh -c \ "git mv '{}' \"\$(dirname '{}')/Makefile\"" Additionally, from my (rudimentary) testing, this commit reduces the time it takes to run ./configure by about 20~25% compared to commit 72ece92ea ("Transmission fixes: drop private-lib (#5213)", 2022-06-22). Environment: dash 0.5.11.5-1, gcc 12.1.0-2, Artix Linux, ext4 on an HDD. Commands used for benchmarking each commit: $ : >time_configure && ./configure && make distclean && for i in $(seq 1 10); do { time -p ./configure; } 2>>time_configure; done $ grep real time_configure | awk '{ total += $2 } END { print total/NR }'
* makefiles: define root dir and include relative to itLibravatar Kelvin M. Klann2022-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A non-absolute path on an include command is always treated as being relative to the directory in which "make" was started in, rather than being relative to the makefile that contains the command. For example, given the following project structure and file contents: * Makefile: include src/foo.mk * src/foo.mk: include bar.mk * src/bar.mk: Running "make" on the root project directory (that is, where "Makefile" is) yields the following: src/foo.mk:1: bar.mk: No such file or directory As "bar.mk" in "include bar.mk" is relative to the current (process) directory (that is, "./bar.mk") and not to where foo.mk is located in ("./src/bar.mk"). So on every makefile that contains an include command, define the root project directory in the ROOT variable and always include relative to it, to later enable any included mkfiles to include other mkfiles without having to worry about the correct path. Commands used to search and replace: $ git grep -Flz 'include ../common.mk' -- src | xargs -0 -I '{}' sh -c \ "printf '%s\n' \"\`sed 's|include ../common.mk|ROOT = ../..\ninclude \$(ROOT)/src/common.mk|' '{}'\`\" >'{}'" Environment: GNU make 4.3-3.1 on Artix Linux
* netlink - fixing the fixLibravatar netblue302022-01-22
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* adding netlink to --protocol list (#4605)Libravatar netblue2022-01-21
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* 2022 copyright updateLibravatar netblue302022-01-07
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* makefiles: make all, clean and distclean PHONYLibravatar Kelvin M. Klann2021-03-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid a stat() call for each affected target and also potentially speed up parallel builds. From the GNU make manual[1]: > Phony targets are also useful in conjunction with recursive > invocations of make (see Recursive Use of make). In this situation > the makefile will often contain a variable which lists a number of > sub-directories to be built. [...] > The implicit rule search (see Implicit Rules) is skipped for .PHONY > targets. This is why declaring a target as .PHONY is good for > performance, even if you are not worried about the actual file > existing. Commands used to search, replace and cleanup: $ find -type f -name '*Makefile.in' -exec sed -i.bak \ -e 's/^all:/.PHONY: all\nall:/' \ -e 's/^clean:/.PHONY: clean\nclean:/' \ -e 's/^distclean:/.PHONY: distclean\ndistclean:/' '{}' + $ find -type f -name '*Makefile.in.bak' -exec rm '{}' + [1]: https://www.gnu.org/software/make/manual/html_node/Phony-Targets.html
* copyright updateLibravatar startx20172021-02-15
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* Seccomp error action fixesLibravatar Topi Miettinen2021-02-01
| | | | | | | | | | | | | | fsec-optimize: Optimize BPF with current seccomp error action, not just KILL fseccomp: use correct BPF code for errno action firejail: honor seccomp error action for X32 and secondary filters, rebuild filters if the error action is changed Closes: #3933 Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
* non-dumpable pluginsLibravatar smitsohu2021-01-04
| | | | | (hopefully) fixes the issues that led to reverting commits 6abb65d328af61d67361890743190bd4c57f8e3c and 98e42dc6da4e4b1e47ed2aa020012d4dedc1e80e
* added bluetooth to the list of protocols allowed by seccompLibravatar netblue302020-10-28
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* Merge pull request #3572 from smitsohu/dumpableLibravatar netblue302020-08-22
|\ | | | | hardening: run plugins with dumpable flag cleared
| * cleanupLibravatar smitsohu2020-08-17
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| * add dumpable warningsLibravatar smitsohu2020-08-17
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* | seccomp: loggingLibravatar Topi Miettinen2020-08-05
|/ | | | | | | Allow `log` as an alternative seccomp error action instead of killing or returning an errno code. Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
* Fix (fatal-warnings) warning by adding bracesLibravatar Topi Miettinen2020-04-11
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* Allow changing error action in seccomp filtersLibravatar Topi Miettinen2020-04-06
| | | | | | | | | | | | | | Let user specify the action when seccomp filters trigger: - errno name like EPERM (default) or ENOSYS: return errno and let the process continue. - 'kill': kill the process as previous versions The default action is EPERM, but killing can still be specified with syscall:kill syntax or globally with seccomp-error-action=kill. The action can be also overridden /etc/firejail/firejail.config file. Not killing the process weakens Firejail slightly when trying to contain intrusion, but it may also allow tighter filters if the only alternative is to allow a system call.
* seccomp: allow defining separate filters for 32-bit archLibravatar Topi Miettinen2020-03-28
| | | | | | | | | | | | | | | | | | | | | System calls (names and numbers) are not exactly the same for 32 bit and 64 bit architectures. Let's allow defining separate filters for 32-bit arch using seccomp.32, seccomp.32.drop, seccomp.32.keep. This is useful for mixed 64/32 bit application environments like Steam and Wine. Implement protocol and mdwx filtering also for 32 bit arch. It's still better to block secondary archs completely if not needed. Lists of supported system calls are also updated. Warn if preload libraries would be needed due to trace, tracelog or postexecseccomp (seccomp.drop=execve etc), because a 32-bit dynamic linker does not understand the 64 bit preload libraries. Closes #3267. Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
* move copyright to 2020 (part 2) (#3181)Libravatar glitsj162020-01-24
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* cleanup after scan-buildLibravatar netblue302019-10-31
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* Revert changes in #2928 to seccomp group @defaultLibravatar Topi Miettinen2019-09-04
| | | | | Reconstruct @default by not relying on the changed system call groups @privileged and @resources.
* Merge pull request #2928 from topimiettinen/seccomp-more-groupsLibravatar netblue302019-08-29
|\ | | | | Add further seccomp groups
| * Add further seccomp groupsLibravatar Topi Miettinen2019-08-28
| | | | | | | | Get further seccomp group definitions from systemd.
* | Allow exceptions to seccomp listsLibravatar Topi Miettinen2019-08-25
|/ | | | | | | Prefix ! can be used to make exceptions to system call blacklists and whitelists used by seccomp, seccomp.drop and seccomp.keep. Closes #1366
* mdwx: block memfd_createLibravatar Topi Miettinen2019-03-05
| | | | | Some profiles may need adjusting if app uses memfd_create(2) and memory-deny-write-execute was enabled.
* move copyright statement to 2019Libravatar smitsohu2019-02-07
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* fix small memleakLibravatar Reiner Herrmann2019-02-05
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* removed mincore syscall from default seccomp filterLibravatar netblue302019-01-23
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* adding mincore syscall to the default seccomp filter and some independent ↵Libravatar netblue302019-01-14
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* remove seccomp warningLibravatar netblue302018-09-09
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* Add personality to allow-debuggers (see #2021)Libravatar ಚಿರಾಗ್ ನಟರಾಜ್2018-07-09
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* reverted commit 5a3eefa6e70e824f545add9169202f788a9ce14d, issue #1948Libravatar netblue302018-05-20
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* tentative fix for issue #1948Libravatar netblue302018-05-19
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* remove 64bit seccomp filter from 32bit architecturesLibravatar netblue302018-05-06
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* consolidate makefilesLibravatar netblue302018-03-31
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* support Spectre mitigation patch for gcc compilerLibravatar netblue302018-03-23
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* move copyright statement to 2018Libravatar startx20172018-01-14
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* replacing seccomp printing with a seccomp disassemblerLibravatar netblue302017-12-28
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* strip trailing whitespaceLibravatar Fred-Barclay2017-11-19
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* seccomp mdwx: block pkey_mprotect like mprotectLibravatar Topi Miettinen2017-11-11
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* Improve seccomp architecture supportLibravatar Topi Miettinen2017-09-10
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* "module" is already included in "privileged"Libravatar smitsohu2017-09-04
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* Improve seccomp support for non-x86 architecturesLibravatar Topi Miettinen2017-09-02
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* Workaround for build problems, but correct problem this timeLibravatar Topi Miettinen2017-09-02
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* Workaround for build problems on arm64, s390x and sparc64Libravatar Topi Miettinen2017-09-01
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* Improve cross-platform buildLibravatar Topi Miettinen2017-08-30
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* fix seccomp secondary filter printing on i386 platformLibravatar netblue302017-08-30
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* tentative fix for Debian cross-platform buildLibravatar netblue302017-08-30
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