On Tue, Jun 21, 2022 at 3:28 AM KP Singh <kpsingh@xxxxxxxxxx> wrote: > > v1 -> v2 > > - Used kfuncs as suggested by Alexei > - Used Benjamin Tissoires' patch from the HID v4 series to add a > sleepable kfunc set (I sent the patch as a part of this series as it > seems to have been dropped from v5) and acked it. Hope this is okay. FWIW, this is perfectly OK with me. The reason I dropped the patch from the series is because I don't absolutely need it anymore: all of my sleepable kfuncs are now declared as SYSCALL type, which is by definition sleepable. I still believe it's valuable to be able to define sleepable kfuncs however. Cheers, Benjamin > - Added support for verifying string constants to kfuncs > > Foundation for building more complex security policies using the > BPF LSM as presented in LSF/MM/BPF: > > http://vger.kernel.org/bpfconf2022_material/lsfmmbpf2022-xattr.pdf > > Benjamin Tissoires (1): > btf: Add a new kfunc set which allows to mark a function to be > sleepable > > KP Singh (4): > bpf: kfunc support for ARG_PTR_TO_CONST_STR > bpf: Allow kfuncs to be used in LSM programs > bpf: Add a bpf_getxattr kfunc > bpf/selftests: Add a selftest for bpf_getxattr > > include/linux/bpf_verifier.h | 2 + > include/linux/btf.h | 2 + > kernel/bpf/btf.c | 42 ++++++++- > kernel/bpf/verifier.c | 85 +++++++++++-------- > kernel/trace/bpf_trace.c | 36 ++++++++ > .../testing/selftests/bpf/prog_tests/xattr.c | 58 +++++++++++++ > tools/testing/selftests/bpf/progs/xattr.c | 37 ++++++++ > 7 files changed, 223 insertions(+), 39 deletions(-) > create mode 100644 tools/testing/selftests/bpf/prog_tests/xattr.c > create mode 100644 tools/testing/selftests/bpf/progs/xattr.c > > -- > 2.37.0.rc0.104.g0611611a94-goog >
