On 10/21, Tycho Andersen wrote: > > > And this leads to another question... If we expect that this interface > > can change later, then perhaps PTRACE_SECCOMP_GET_FILTER should also > > dump some header before copy_to_user(fprog->filter) ? Say, just > > "unsigned long version" == 0 for now. So that we can avoid > > PTRACE_SECCOMP_GET_FILTER_V2 in future. > > So this is interesting. Like Kees mentioned, the bulk of the work > would be done by the bpf syscall. We'd still need some way to get > access to the fd itself, which we could (ab)use > PTRACE_SECCOMP_GET_FILTER for, by returning the fd + BPF_MAXINSNS (so > that it doesn't conflict with length) or something like that. Or add a > _V2 as you say. If there is some change we can make to have a nicer > interface than fd + BPF_MAXINSNS to future proof, I'm fine with making > it. Can't comment, this is up to you/Kees ;) So, just in case, let me repeat I am fine with this patch. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
