From: Jakub Kicinski <jakub.kicinski@netronome.com>
To: alexei.starovoitov@gmail.com, daniel@iogearbox.net
Cc: oss-drivers@netronome.com, netdev@vger.kernel.org,
Jakub Kicinski <jakub.kicinski@netronome.com>
Subject: [PATCH bpf-next 06/11] tools: bpftool: allow users to specify program type for prog load
Date: Tue, 3 Jul 2018 19:54:12 -0700 [thread overview]
Message-ID: <20180704025417.8848-7-jakub.kicinski@netronome.com> (raw)
In-Reply-To: <20180704025417.8848-1-jakub.kicinski@netronome.com>
Sometimes program section names don't match with libbpf's expectation.
In particular XDP's default section names differ between libbpf and
iproute2. Allow users to pass program type on command line. Name
the types like the libbpf expected section names.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
---
.../bpftool/Documentation/bpftool-prog.rst | 15 ++++++-
tools/bpf/bpftool/bash-completion/bpftool | 6 +++
tools/bpf/bpftool/prog.c | 44 +++++++++++++++++--
3 files changed, 60 insertions(+), 5 deletions(-)
diff --git a/tools/bpf/bpftool/Documentation/bpftool-prog.rst b/tools/bpf/bpftool/Documentation/bpftool-prog.rst
index 41723c6acaa6..e53e1ad2caf0 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-prog.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-prog.rst
@@ -24,10 +24,19 @@ MAP COMMANDS
| **bpftool** **prog dump xlated** *PROG* [{**file** *FILE* | **opcodes** | **visual**}]
| **bpftool** **prog dump jited** *PROG* [{**file** *FILE* | **opcodes**}]
| **bpftool** **prog pin** *PROG* *FILE*
-| **bpftool** **prog load** *OBJ* *FILE* [**dev** *NAME*]
+| **bpftool** **prog load** *OBJ* *FILE* [**type** *TYPE*] [**dev** *NAME*]
| **bpftool** **prog help**
|
| *PROG* := { **id** *PROG_ID* | **pinned** *FILE* | **tag** *PROG_TAG* }
+| *TYPE* := {
+| **socket** | **kprobe** | **kretprobe** | **classifier** | **action** |
+| **tracepoint** | **raw_tracepoint** | **xdp** | **perf_event** | **cgroup/skb** |
+| **cgroup/sock** | **cgroup/dev** | **lwt_in** | **lwt_out** | **lwt_xmit** |
+| **lwt_seg6local** | **sockops** | **sk_skb** | **sk_msg** | **lirc_mode2** |
+| **cgroup/bind4** | **cgroup/bind6** | **cgroup/post_bind4** | **cgroup/post_bind6** |
+| **cgroup/connect4** | **cgroup/connect6** | **cgroup/sendmsg4** | **cgroup/sendmsg6**
+| }
+
DESCRIPTION
===========
@@ -64,8 +73,10 @@ DESCRIPTION
Note: *FILE* must be located in *bpffs* mount.
- **bpftool prog load** *OBJ* *FILE* [**dev** *NAME*]
+ **bpftool prog load** *OBJ* *FILE* [**type** *TYPE*] [**dev** *NAME*]
Load bpf program from binary *OBJ* and pin as *FILE*.
+ **type** is optional, if not specified program type will be
+ inferred from section names.
If **dev** *NAME* is specified program will be loaded onto
given networking device (offload).
diff --git a/tools/bpf/bpftool/bash-completion/bpftool b/tools/bpf/bpftool/bash-completion/bpftool
index ab044f528a85..9ae33a73d732 100644
--- a/tools/bpf/bpftool/bash-completion/bpftool
+++ b/tools/bpf/bpftool/bash-completion/bpftool
@@ -274,11 +274,17 @@ _bpftool()
fi
case $prev in
+ type)
+ COMPREPLY=( $( compgen -W "socket kprobe kretprobe classifier action tracepoint raw_tracepoint xdp perf_event cgroup/skb cgroup/sock cgroup/dev lwt_in lwt_out lwt_xmit lwt_seg6local sockops sk_skb sk_msg lirc_mode2 cgroup/bind4 cgroup/bind6 cgroup/connect4 cgroup/connect6 cgroup/sendmsg4 cgroup/sendmsg6 cgroup/post_bind4 cgroup/post_bind6" -- \
+ "$cur" ) )
+ return 0
+ ;;
dev)
_sysfs_get_netdevs
return 0
;;
*)
+ _bpftool_once_attr 'type'
_bpftool_once_attr 'dev'
return 0
;;
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index 21c74de7156f..7a06fd4c5d27 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -688,6 +688,7 @@ static int do_load(int argc, char **argv)
const char *objfile, *pinfile;
struct bpf_object *obj;
int prog_fd;
+ int err;
if (!REQ_ARGS(2))
return -1;
@@ -695,7 +696,37 @@ static int do_load(int argc, char **argv)
pinfile = GET_ARG();
while (argc) {
- if (is_prefix(*argv, "dev")) {
+ if (is_prefix(*argv, "type")) {
+ char *type;
+
+ NEXT_ARG();
+
+ if (attr.prog_type != BPF_PROG_TYPE_UNSPEC) {
+ p_err("program type already specified");
+ return -1;
+ }
+ if (!REQ_ARGS(1))
+ return -1;
+
+ /* Put a '/' at the end of type to appease libbpf */
+ type = malloc(strlen(*argv) + 2);
+ if (!type) {
+ p_err("mem alloc failed");
+ return -1;
+ }
+ *type = 0;
+ strcat(type, *argv);
+ strcat(type, "/");
+
+ err = libbpf_prog_type_by_string(type, &attr.prog_type,
+ &attr.expected_attach_type);
+ free(type);
+ if (err < 0) {
+ p_err("unknown program type '%s'", *argv);
+ return err;
+ }
+ NEXT_ARG();
+ } else if (is_prefix(*argv, "dev")) {
NEXT_ARG();
if (attr.ifindex) {
@@ -713,7 +744,7 @@ static int do_load(int argc, char **argv)
}
NEXT_ARG();
} else {
- p_err("expected no more arguments or 'dev', got: '%s'?",
+ p_err("expected no more arguments, 'type' or 'dev', got: '%s'?",
*argv);
return -1;
}
@@ -753,10 +784,17 @@ static int do_help(int argc, char **argv)
" %s %s dump xlated PROG [{ file FILE | opcodes | visual }]\n"
" %s %s dump jited PROG [{ file FILE | opcodes }]\n"
" %s %s pin PROG FILE\n"
- " %s %s load OBJ FILE [dev NAME]\n"
+ " %s %s load OBJ FILE [type TYPE] [dev NAME]\n"
" %s %s help\n"
"\n"
" " HELP_SPEC_PROGRAM "\n"
+ " TYPE := { socket | kprobe | kretprobe | classifier | action |\n"
+ " tracepoint | raw_tracepoint | xdp | perf_event | cgroup/skb |\n"
+ " cgroup/sock | cgroup/dev | lwt_in | lwt_out | lwt_xmit |\n"
+ " lwt_seg6local | sockops | sk_skb | sk_msg | lirc_mode2 |\n"
+ " cgroup/bind4 | cgroup/bind6 | cgroup/post_bind4 |\n"
+ " cgroup/post_bind6 | cgroup/connect4 | cgroup/connect6 |\n"
+ " cgroup/sendmsg4 | cgroup/sendmsg6 }\n"
" " HELP_SPEC_OPTIONS "\n"
"",
bin_name, argv[-2], bin_name, argv[-2], bin_name, argv[-2],
--
2.17.1
next prev parent reply other threads:[~2018-07-04 2:54 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-04 2:54 [PATCH bpf-next 00/11] tools: bpf: extend bpftool prog load Jakub Kicinski
2018-07-04 2:54 ` [PATCH bpf-next 01/11] selftests/bpf: remove duplicated word from test offloads Jakub Kicinski
2018-07-04 2:54 ` [PATCH bpf-next 02/11] selftests/bpf: add Error: prefix in check_extack helper Jakub Kicinski
2018-07-04 2:54 ` [PATCH bpf-next 03/11] tools: bpftool: refactor argument parsing for prog load Jakub Kicinski
2018-07-04 2:54 ` [PATCH bpf-next 04/11] tools: bpftool: add support for loading programs for offload Jakub Kicinski
2018-07-04 2:54 ` [PATCH bpf-next 05/11] tools: libbpf: expose the prog type guessing from section name logic Jakub Kicinski
2018-07-04 2:54 ` Jakub Kicinski [this message]
2018-07-04 2:54 ` [PATCH bpf-next 07/11] tools: libbpf: recognize offload neutral maps Jakub Kicinski
2018-07-04 2:54 ` [PATCH bpf-next 08/11] tools: libbpf: add extended attributes version of bpf_object__open() Jakub Kicinski
2018-07-04 2:54 ` [PATCH bpf-next 09/11] tools: bpftool: reimplement bpf_prog_load() for prog load Jakub Kicinski
2018-07-04 2:54 ` [PATCH bpf-next 10/11] tools: libbpf: allow map reuse Jakub Kicinski
2018-07-04 2:54 ` [PATCH bpf-next 11/11] tools: bpftool: allow reuse of maps with bpftool prog load Jakub Kicinski
2018-07-05 8:35 ` Daniel Borkmann
2018-07-05 22:57 ` Jakub Kicinski
2018-07-06 7:16 ` Daniel Borkmann
2018-07-06 15:30 ` Jakub Kicinski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180704025417.8848-7-jakub.kicinski@netronome.com \
--to=jakub.kicinski@netronome.com \
--cc=alexei.starovoitov@gmail.com \
--cc=daniel@iogearbox.net \
--cc=netdev@vger.kernel.org \
--cc=oss-drivers@netronome.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox