linux-stable.git/tools/bpf, branch v4.16.2

tools: bpftool: don't use hex numbers in JSON output

2018-03-24T17:38:59+00:00

JSON does not accept hex numbers with 0x prefix.  Simply print
as decimal numbers, JSON should be primarily machine-readable.

Signed-off-by: Jakub Kicinski 
Reviewed-by: Quentin Monnet 
Fixes: 831a0aafe5c3 ("tools: bpftool: add JSON output for `bpftool map *` commands")
Signed-off-by: Alexei Starovoitov

tools: bpftool: fix compilation with older headers

2018-03-06T21:51:00+00:00

Compilation of bpftool on a distro that lacks eBPF support in the installed
kernel headers fails with:

common.c: In function ‘is_bpffs’:
common.c:96:40: error: ‘BPF_FS_MAGIC’ undeclared (first use in this function)
  return (unsigned long)st_fs.f_type == BPF_FS_MAGIC;
                                        ^
Fix this the same way it is already in tools/lib/bpf/libbpf.c and
tools/lib/api/fs/fs.c.

Signed-off-by: Jiri Benc 
Signed-off-by: Daniel Borkmann

tools: bpftool: preserve JSON output on errors on batch file parsing

2018-02-15T09:01:05+00:00

Before this patch, perror() function is used in some cases when bpftool
fails to parse its input file in batch mode. This function does not
integrate well with the rest of the output when JSON is used, so we
replace it by something that is compliant.

Most calls to perror() had already been replaced in a previous patch,
this one is a leftover.

Fixes: d319c8e101c5 ("tools: bpftool: preserve JSON output on errors on batch file parsing")
Signed-off-by: Quentin Monnet 
Acked-by: Jakub Kicinski 
Signed-off-by: Daniel Borkmann

tools: bpftool: preserve JSON for batch mode when dumping insns to file

2018-02-15T09:01:05+00:00

Print a "null" JSON object to standard output when bpftool is used to
print program instructions to a file, so as to avoid breaking JSON
output on batch mode.

This null object was added for most commands in a previous commit, but
this specific case had been omitted.

Fixes: 004b45c0e51a ("tools: bpftool: provide JSON output for all possible commands")
Signed-off-by: Quentin Monnet 
Acked-by: Jakub Kicinski 
Signed-off-by: Daniel Borkmann

tools: bpftool: add bash completion for cgroup commands

2018-02-08T10:59:50+00:00

Add bash completion for "bpftool cgroup" command family. While at it,
also fix the formatting of some keywords in the man page for cgroups.

Fixes: 5ccda64d38cc ("bpftool: implement cgroup bpf operations")
Signed-off-by: Quentin Monnet 
Reviewed-by: Jakub Kicinski 
Signed-off-by: Daniel Borkmann

tools: bpftool: add bash completion for `bpftool prog load`

2018-02-08T10:59:50+00:00

Add bash completion for bpftool command `prog load`. Completion for this
command is easy, as it only takes existing file paths as arguments.

Fixes: 49a086c201a9 ("bpftool: implement prog load command")
Signed-off-by: Quentin Monnet 
Reviewed-by: Jakub Kicinski 
Signed-off-by: Daniel Borkmann

tools: bpftool: make syntax for program map update explicit in man page

2018-02-08T10:59:50+00:00

Specify in the documentation that when using bpftool to update a map of
type BPF_MAP_TYPE_PROG_ARRAY, the syntax for the program used as a value
should use the "id|tag|pinned" keywords convention, as used with
"bpftool prog" commands.

Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")
Signed-off-by: Quentin Monnet 
Reviewed-by: Jakub Kicinski 
Signed-off-by: Daniel Borkmann

tools: bpftool: exit doc Makefile early if rst2man is not available

2018-02-08T10:59:50+00:00

If rst2man is not available on the system, running `make doc` from the
bpftool directory fails with an error message. However, it creates empty
manual pages (.8 files in this case). A subsequent call to `make
doc-install` would then succeed and install those empty man pages on the
system.

To prevent this, raise a Makefile error and exit immediately if rst2man
is not available before generating the pages from the rst documentation.

Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")
Reported-by: Jason van Aaardt 
Signed-off-by: Quentin Monnet 
Reviewed-by: Jakub Kicinski 
Signed-off-by: Daniel Borkmann

bpftool: recognize BPF_MAP_TYPE_CPUMAP maps

2018-01-19T22:16:52+00:00

Add BPF_MAP_TYPE_CPUMAP map type to the list
of map type recognized by bpftool and define
corresponding text representation.

Signed-off-by: Roman Gushchin 
Cc: Quentin Monnet 
Cc: Jakub Kicinski 
Cc: Daniel Borkmann 
Cc: Alexei Starovoitov 
Acked-by: Quentin Monnet 
Signed-off-by: Daniel Borkmann

tools: bpftool: report device information for offloaded maps

2018-01-18T21:54:25+00:00

Print the information about device on which map is created.

Signed-off-by: Jakub Kicinski 
Signed-off-by: Daniel Borkmann