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Date: Fri, 30 Jul 2021 11:52:13 -0700
From: Andrii Nakryiko <andrii.nakryiko@...il.com>
To: Quentin Monnet <quentin@...valent.com>
Cc: Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Andrii Nakryiko <andrii@...nel.org>,
Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>
Subject: Re: [PATCH bpf-next 3/7] tools: bpftool: complete and synchronise
attach or map types
On Thu, Jul 29, 2021 at 9:29 AM Quentin Monnet <quentin@...valent.com> wrote:
>
> Update bpftool's list of attach type names to tell it about the latest
> attach types, or the "ringbuf" map. Also update the documentation, help
> messages, and bash completion when relevant.
>
> These missing items were reported by the newly added Python script used
> to help maintain consistency in bpftool.
>
> Signed-off-by: Quentin Monnet <quentin@...valent.com>
> ---
> .../bpftool/Documentation/bpftool-prog.rst | 2 +-
> tools/bpf/bpftool/bash-completion/bpftool | 5 +-
> tools/bpf/bpftool/common.c | 76 ++++++++++---------
> tools/bpf/bpftool/prog.c | 4 +-
> 4 files changed, 47 insertions(+), 40 deletions(-)
>
> diff --git a/tools/bpf/bpftool/Documentation/bpftool-prog.rst b/tools/bpf/bpftool/Documentation/bpftool-prog.rst
> index fe1b38e7e887..abf5f4cd7d3e 100644
> --- a/tools/bpf/bpftool/Documentation/bpftool-prog.rst
> +++ b/tools/bpf/bpftool/Documentation/bpftool-prog.rst
> @@ -48,7 +48,7 @@ PROG COMMANDS
> | **struct_ops** | **fentry** | **fexit** | **freplace** | **sk_lookup**
> | }
> | *ATTACH_TYPE* := {
> -| **msg_verdict** | **stream_verdict** | **stream_parser** | **flow_dissector**
> +| **msg_verdict** | **skb_verdict** | **stream_verdict** | **stream_parser** | **flow_dissector**
> | }
> | *METRICs* := {
> | **cycles** | **instructions** | **l1d_loads** | **llc_misses**
> diff --git a/tools/bpf/bpftool/bash-completion/bpftool b/tools/bpf/bpftool/bash-completion/bpftool
> index b2e33a2d8524..69d018474537 100644
> --- a/tools/bpf/bpftool/bash-completion/bpftool
> +++ b/tools/bpf/bpftool/bash-completion/bpftool
> @@ -405,7 +405,8 @@ _bpftool()
> ;;
> 5)
> local BPFTOOL_PROG_ATTACH_TYPES='msg_verdict \
> - stream_verdict stream_parser flow_dissector'
> + skb_verdict stream_verdict stream_parser \
> + flow_dissector'
> COMPREPLY=( $( compgen -W \
> "$BPFTOOL_PROG_ATTACH_TYPES" -- "$cur" ) )
> return 0
> @@ -708,7 +709,7 @@ _bpftool()
> hash_of_maps devmap devmap_hash sockmap cpumap \
> xskmap sockhash cgroup_storage reuseport_sockarray \
> percpu_cgroup_storage queue stack sk_storage \
> - struct_ops inode_storage task_storage'
> + struct_ops inode_storage task_storage ringbuf'
> COMPREPLY=( $( compgen -W \
> "$BPFTOOL_MAP_CREATE_TYPES" -- "$cur" ) )
> return 0
> diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
> index 1828bba19020..b47797cac64f 100644
> --- a/tools/bpf/bpftool/common.c
> +++ b/tools/bpf/bpftool/common.c
> @@ -31,42 +31,48 @@
> #endif
>
> const char * const attach_type_name[__MAX_BPF_ATTACH_TYPE] = {
> - [BPF_CGROUP_INET_INGRESS] = "ingress",
> - [BPF_CGROUP_INET_EGRESS] = "egress",
> - [BPF_CGROUP_INET_SOCK_CREATE] = "sock_create",
> - [BPF_CGROUP_INET_SOCK_RELEASE] = "sock_release",
> - [BPF_CGROUP_SOCK_OPS] = "sock_ops",
> - [BPF_CGROUP_DEVICE] = "device",
> - [BPF_CGROUP_INET4_BIND] = "bind4",
> - [BPF_CGROUP_INET6_BIND] = "bind6",
> - [BPF_CGROUP_INET4_CONNECT] = "connect4",
> - [BPF_CGROUP_INET6_CONNECT] = "connect6",
> - [BPF_CGROUP_INET4_POST_BIND] = "post_bind4",
> - [BPF_CGROUP_INET6_POST_BIND] = "post_bind6",
> - [BPF_CGROUP_INET4_GETPEERNAME] = "getpeername4",
> - [BPF_CGROUP_INET6_GETPEERNAME] = "getpeername6",
> - [BPF_CGROUP_INET4_GETSOCKNAME] = "getsockname4",
> - [BPF_CGROUP_INET6_GETSOCKNAME] = "getsockname6",
> - [BPF_CGROUP_UDP4_SENDMSG] = "sendmsg4",
> - [BPF_CGROUP_UDP6_SENDMSG] = "sendmsg6",
> - [BPF_CGROUP_SYSCTL] = "sysctl",
> - [BPF_CGROUP_UDP4_RECVMSG] = "recvmsg4",
> - [BPF_CGROUP_UDP6_RECVMSG] = "recvmsg6",
> - [BPF_CGROUP_GETSOCKOPT] = "getsockopt",
> - [BPF_CGROUP_SETSOCKOPT] = "setsockopt",
> + [BPF_CGROUP_INET_INGRESS] = "ingress",
> + [BPF_CGROUP_INET_EGRESS] = "egress",
> + [BPF_CGROUP_INET_SOCK_CREATE] = "sock_create",
> + [BPF_CGROUP_INET_SOCK_RELEASE] = "sock_release",
> + [BPF_CGROUP_SOCK_OPS] = "sock_ops",
> + [BPF_CGROUP_DEVICE] = "device",
> + [BPF_CGROUP_INET4_BIND] = "bind4",
> + [BPF_CGROUP_INET6_BIND] = "bind6",
> + [BPF_CGROUP_INET4_CONNECT] = "connect4",
> + [BPF_CGROUP_INET6_CONNECT] = "connect6",
> + [BPF_CGROUP_INET4_POST_BIND] = "post_bind4",
> + [BPF_CGROUP_INET6_POST_BIND] = "post_bind6",
> + [BPF_CGROUP_INET4_GETPEERNAME] = "getpeername4",
> + [BPF_CGROUP_INET6_GETPEERNAME] = "getpeername6",
> + [BPF_CGROUP_INET4_GETSOCKNAME] = "getsockname4",
> + [BPF_CGROUP_INET6_GETSOCKNAME] = "getsockname6",
> + [BPF_CGROUP_UDP4_SENDMSG] = "sendmsg4",
> + [BPF_CGROUP_UDP6_SENDMSG] = "sendmsg6",
> + [BPF_CGROUP_SYSCTL] = "sysctl",
> + [BPF_CGROUP_UDP4_RECVMSG] = "recvmsg4",
> + [BPF_CGROUP_UDP6_RECVMSG] = "recvmsg6",
> + [BPF_CGROUP_GETSOCKOPT] = "getsockopt",
> + [BPF_CGROUP_SETSOCKOPT] = "setsockopt",
>
> - [BPF_SK_SKB_STREAM_PARSER] = "sk_skb_stream_parser",
> - [BPF_SK_SKB_STREAM_VERDICT] = "sk_skb_stream_verdict",
> - [BPF_SK_SKB_VERDICT] = "sk_skb_verdict",
> - [BPF_SK_MSG_VERDICT] = "sk_msg_verdict",
> - [BPF_LIRC_MODE2] = "lirc_mode2",
> - [BPF_FLOW_DISSECTOR] = "flow_dissector",
> - [BPF_TRACE_RAW_TP] = "raw_tp",
> - [BPF_TRACE_FENTRY] = "fentry",
> - [BPF_TRACE_FEXIT] = "fexit",
> - [BPF_MODIFY_RETURN] = "mod_ret",
> - [BPF_LSM_MAC] = "lsm_mac",
> - [BPF_SK_LOOKUP] = "sk_lookup",
> + [BPF_SK_SKB_STREAM_PARSER] = "sk_skb_stream_parser",
> + [BPF_SK_SKB_STREAM_VERDICT] = "sk_skb_stream_verdict",
> + [BPF_SK_SKB_VERDICT] = "sk_skb_verdict",
> + [BPF_SK_MSG_VERDICT] = "sk_msg_verdict",
> + [BPF_LIRC_MODE2] = "lirc_mode2",
> + [BPF_FLOW_DISSECTOR] = "flow_dissector",
> + [BPF_TRACE_RAW_TP] = "raw_tp",
> + [BPF_TRACE_FENTRY] = "fentry",
> + [BPF_TRACE_FEXIT] = "fexit",
> + [BPF_MODIFY_RETURN] = "mod_ret",
> + [BPF_LSM_MAC] = "lsm_mac",
> + [BPF_SK_LOOKUP] = "sk_lookup",
> + [BPF_TRACE_ITER] = "trace_iter",
> + [BPF_XDP_DEVMAP] = "xdp_devmap",
> + [BPF_XDP_CPUMAP] = "xdp_cpumap",
> + [BPF_XDP] = "xdp",
> + [BPF_SK_REUSEPORT_SELECT] = "sk_skb_reuseport_select",
> + [BPF_SK_REUSEPORT_SELECT_OR_MIGRATE] = "sk_skb_reuseport_select_or_migrate",
> };
>
you are ruining Git blaming abilities for purely aesthetic reasons,
which are not good enough reasons, IMO. Please don't do this, this
nice alignment is nice, but definitely not necessary. So whatever is
longer then the "default indentation", just add another tab or two and
be done with it. That way we can actually see what was added in this
patch, btw.
> void p_err(const char *fmt, ...)
> diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
> index cc48726740ad..1ee87225543b 100644
> --- a/tools/bpf/bpftool/prog.c
> +++ b/tools/bpf/bpftool/prog.c
> @@ -2245,8 +2245,8 @@ static int do_help(int argc, char **argv)
> " cgroup/sendmsg6 | cgroup/recvmsg4 | cgroup/recvmsg6 |\n"
> " cgroup/getsockopt | cgroup/setsockopt | cgroup/sock_release |\n"
> " struct_ops | fentry | fexit | freplace | sk_lookup }\n"
> - " ATTACH_TYPE := { msg_verdict | stream_verdict | stream_parser |\n"
> - " flow_dissector }\n"
> + " ATTACH_TYPE := { msg_verdict | skb_verdict | stream_verdict |\n"
> + " stream_parser | flow_dissector }\n"
> " METRIC := { cycles | instructions | l1d_loads | llc_misses | itlb_misses | dtlb_misses }\n"
> " " HELP_SPEC_OPTIONS "\n"
> "",
> --
> 2.30.2
>
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