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Date: Fri, 7 Aug 2020 10:35:28 +0200 From: Jiri Olsa <jolsa@...hat.com> To: KP Singh <kpsingh@...omium.org> Cc: Jiri Olsa <jolsa@...nel.org>, Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andriin@...com>, Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>, Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>, Martin KaFai Lau <kafai@...com>, David Miller <davem@...hat.com>, John Fastabend <john.fastabend@...il.com>, Wenbo Zhang <ethercflow@...il.com>, Brendan Gregg <bgregg@...flix.com>, Florent Revest <revest@...omium.org>, Al Viro <viro@...iv.linux.org.uk> Subject: Re: [PATCH v9 bpf-next 10/14] bpf: Add d_path helper On Fri, Aug 07, 2020 at 02:31:52AM +0200, KP Singh wrote: > On Sat, Aug 1, 2020 at 7:04 PM Jiri Olsa <jolsa@...nel.org> wrote: > > > > Adding d_path helper function that returns full path for > > [...] > > > +} > > + > > +BTF_SET_START(btf_allowlist_d_path) > > +BTF_ID(func, vfs_truncate) > > +BTF_ID(func, vfs_fallocate) > > +BTF_ID(func, dentry_open) > > +BTF_ID(func, vfs_getattr) > > +BTF_ID(func, filp_close) > > +BTF_SET_END(btf_allowlist_d_path) > > + > > > +static bool bpf_d_path_allowed(const struct bpf_prog *prog) > > +{ > > + return btf_id_set_contains(&btf_allowlist_d_path, prog->aux->attach_btf_id); > > +} > > Can we allow it for LSM programs too? yes, that's why I used struct bpf_prog as argument, so we could reach the program type.. but I was hoping we could do that in follow up patchset, because I assume there might be still some discussion about that? I plan to post new version today jirka > > - KP > > > + > > +BTF_ID_LIST(bpf_d_path_btf_ids) > > +BTF_ID(struct, path) > > + > > [...] > > > > > /* integer value in 'imm' field of BPF_CALL instruction selects which helper > > -- > > 2.25.4 > > >
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