| Age | Commit message (Collapse) | Author | Files | Lines | |
|---|---|---|---|---|---|
| 2012-04-19 | samples/seccomp: fix dependencies on arch macros | Will Drewry | 2 | -11/+19 | |
| This change fixes the compilation error triggered here for i386 allmodconfig in linux-next: http://kisskb.ellerman.id.au/kisskb/buildresult/6123842/ Logic attempting to predict the host architecture has been removed from the Makefile. Instead, the bpf-direct sample should now compile on any architecture, but if the architecture is not supported, it will compile a minimal main() function. This change also ensures the samples are not compiled when there is no seccomp filter support. (Note, I wasn't able to reproduce the error locally, but the existing approach was clearly flawed. This tweak should resolve your issue and avoid other future weirdness.) Reported-by: Paul Gortmaker <[email protected]> Suggested-by: Kees Cook <[email protected]> Signed-off-by: Will Drewry <[email protected]> Signed-off-by: James Morris <[email protected]> | |||||
| 2012-04-14 | Documentation: prctl/seccomp_filter | Will Drewry | 6 | -0/+711 | |
| Documents how system call filtering using Berkeley Packet Filter programs works and how it may be used. Includes an example for x86 and a semi-generic example using a macro-based code generator. Acked-by: Eric Paris <[email protected]> Signed-off-by: Will Drewry <[email protected]> Acked-by: Kees Cook <[email protected]> v18: - added acked by - update no new privs numbers v17: - remove @compat note and add Pitfalls section for arch checking ([email protected]) v16: - v15: - v14: - rebase/nochanges v13: - rebase on to 88ebdda6159ffc15699f204c33feb3e431bf9bdc v12: - comment on the ptrace_event use - update arch support comment - note the behavior of SECCOMP_RET_DATA when there are multiple filters ([email protected]) - lots of samples/ clean up incl 64-bit bpf-direct support ([email protected]) - rebase to linux-next v11: - overhaul return value language, updates ([email protected]) - comment on do_exit(SIGSYS) v10: - update for SIGSYS - update for new seccomp_data layout - update for ptrace option use v9: - updated bpf-direct.c for SIGILL v8: - add PR_SET_NO_NEW_PRIVS to the samples. v7: - updated for all the new stuff in v7: TRAP, TRACE - only talk about PR_SET_SECCOMP now - fixed bad JLE32 check ([email protected]) - adds dropper.c: a simple system call disabler v6: - tweak the language to note the requirement of PR_SET_NO_NEW_PRIVS being called prior to use. ([email protected]) v5: - update sample to use system call arguments - adds a "fancy" example using a macro-based generator - cleaned up bpf in the sample - update docs to mention arguments - fix prctl value ([email protected]) - language cleanup ([email protected]) v4: - update for no_new_privs use - minor tweaks v3: - call out BPF <-> Berkeley Packet Filter ([email protected]) - document use of tentative always-unprivileged - guard sample compilation for i386 and x86_64 v2: - move code to samples ([email protected]) Signed-off-by: James Morris <[email protected]> | |||||