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* tests/bpf.c (DEF_BPF_INIT_FIRST): New macro.
(init_BPF_MAP_CREATE_first, init_BPF_MAP_LOOKUP_ELEM_first,
init_BPF_PROG_LOAD_first, init_BPF_OBJ_PIN_first,
init_BPF_PROG_ATTACH_first, init_BPF_PROG_TEST_RUN_first,
init_BPF_PROG_GET_NEXT_ID_first, init_BPF_OBJ_GET_INFO_BY_FD_first):
Use it.
* configure.ac: Check for union bpf_attr.test.duration.
* bpf.c (decode_BPF_PROG_TEST_RUN): New function.
(SYS_FUNC(bpf)) <bpf_cmd_decoders>: Use it.
* NEWS: Mention this.
* tests/bpf.c: Include "print_fields.h".
Add macro guard for BPF_PROG_TEST_RUN decoder test.
[HAVE_UNION_BPF_ATTR_TEST_DURATION] (sample_BPF_PROG_TEST_RUN_attr):
New variable.
[HAVE_UNION_BPF_ATTR_TEST_DURATION] (init_BPF_PROG_TEST_RUN_first,
print_BPF_PROG_TEST_RUN_first, init_BPF_PROG_TEST_RUN_attr,
print_BPF_PROG_TEST_RUN_attr): New functions.
(main) [HAVE_UNION_BPF_ATTR_TEST_DURATION]: Use them.
Implement decoding of union bpf_attr.numa_node field for BPF_MAP_CREATE
command introduced by linux kernel commit v4.14-rc1~130^2~196^2~1.
* configure.ac: Check for numa_node member of union bpf_attr
instead of inner_map_fd.
(decode_BPF_MAP_CREATE): Add numa_node field to the structure, print it.
* NEWS: Mention this.
* tests/bpf.c: Update macro guards of BPF_MAP_CREATE decoder test.
(init_BPF_MAP_CREATE_first, print_BPF_MAP_CREATE_attr): Update expected
output.
(init_BPF_MAP_CREATE_attr): Initialize numa_node field, update offset.
Print union bpf_attr.value field of BPF_MAP_LOOKUP_ELEM command
and union bpf_attr.next_key field of BPF_MAP_GET_NEXT_KEY command
on entering syscall. These fields are addresses specified to the
kernel from userspace. The amount of data written by the kernel
to these addresses is specified at the map creation time
by BPF_MAP_CREATE command and is not available at this point.
* bpf.c (decode_BPF_MAP_LOOKUP_ELEM): Print union bpf_attr.value
on entering syscall.
(decode_BPF_MAP_GET_NEXT_KEY): Print union bpf_attr.next_key
on entering syscall.
(bpf_map_io): Remove.
* tests/bpf.c (print_BPF_MAP_DELETE_ELEM_first,
print_BPF_MAP_DELETE_ELEM_attr, print_BPF_MAP_GET_NEXT_KEY_first,
print_BPF_MAP_GET_NEXT_KEY_attr): Replace macro redirects with
new functions.
(print_BPF_MAP_LOOKUP_ELEM_first, print_BPF_MAP_LOOKUP_ELEM_attr,
Implement decoding of map_flags and inner_map_fd fields of union bpf_attr
for BPF_MAP_CREATE command introduced by linux kernel commits
v4.6-rc1~91^2~108^2~6 and v4.12-rc1~64^3~373^2~2, respectively.
* configure.ac: Check for inner_map_fd member of union bpf_attr
instead of max_entries.
* xlat/bpf_map_flags.in: New file.
* bpf.c: Include "xlat/bpf_map_flags.h".
(decode_BPF_MAP_CREATE): Add map_flags and inner_map_fd fields
to the structure, print them.
* tests/bpf.c: Update macro guards of BPF_MAP_CREATE decoder test.
(init_BPF_MAP_CREATE_first, print_BPF_MAP_CREATE_attr): Update expected
output.
(init_BPF_MAP_CREATE_attr): Initialize map_flags and inner_map_fd
fields, update offset.
Implement decoding of union bpf_attr.prog_flags field for BPF_PROG_LOAD
command introduced by linux kernel commit v4.12-rc2~34^2~29^2~2.
* configure.ac: Check for prog_flags member of union bpf_attr
instead of kern_version.
* xlat/bpf_prog_flags.in: New file.
* bpf.c: Include "xlat/bpf_prog_flags.h".
(decode_BPF_PROG_LOAD): Add prog_flags field to the structure, print it.
* tests/bpf.c: Update macro guards of BPF_PROG_LOAD decoder test.
(init_BPF_PROG_LOAD_first, print_BPF_PROG_LOAD_attr): Update expected
output.
(init_BPF_PROG_LOAD_attr): Initialize prog_flags field, update offset.
When the size argument specifies more data than necessary for the given
command, kernel checks that all unused fields of union bpf_attr are
zero. Print this extra data when it contains non-zero bytes to enhance
debugging experience.
* bpf.c (decode_attr_extra_data): New function.
(decode_BPF_MAP_CREATE, decode_BPF_MAP_UPDATE_ELEM,
decode_BPF_MAP_DELETE_ELEM, bpf_map_io, decode_BPF_PROG_LOAD,
decode_BPF_OBJ_PIN, decode_BPF_OBJ_GET, decode_BPF_PROG_ATTACH,
decode_BPF_PROG_DETACH): Use it to print extra data passed
via bpf_attr pointer.
(bpf_obj_manage, bpf_prog_attach_detach): Remove.
* tests/bpf.c (map_delete_elem): New function.
(main): Use it.
Implement decoding of BPF_F_ALLOW_OVERRIDE flag of BPF_PROG_ATTACH
command introduced by linux kernel commit v4.10-rc7-174-g7f67763.
* configure.ac: Check for union bpf_attr.attach_flags
instead of union bpf_attr.attach_type.
* xlat/bpf_attach_flags.in: New file.
* bpf.c: Include "xlat/bpf_attach_flags.h".
(bpf_prog_attach_detach): Rename print_attach_bpf_fd argument
to print_attach. Add attach_flags field to the structure,
print it in case of BPF_PROG_ATTACH.
* tests/bpf.c: Check for HAVE_UNION_BPF_ATTR_ATTACH_FLAGS
instead of HAVE_UNION_BPF_ATTR_ATTACH_TYPE.
(prog_cgroup): Initialize attach_flags field.
(main): Update expected output.
* tests/bpf.c (errstr): New variable.
(sys_bpf): New function.
(map_create, map_any, prog_load, obj_manage, prog_cgroup): Use it.
(main): Update expected output.
* tests/bpf.test: Use run_strace_match_diff.
Implement decoding of BPF_OBJ_PIN, BPF_OBJ_GET, BPF_PROG_ATTACH,
and BPF_PROG_DETACH commands.
* bpf.c: Include "xlat/bpf_attach_type.h".
(bpf_obj_manage, bpf_prog_attach, bpf_prog_detach): New functions.
(SYS_FUNC(bpf)): Use them.
* configure.ac: Check for union bpf_attr.bpf_fd and union
bpf_attr.attach_type.
* xlat/bpf_attach_type.in: New file.
* xlat/bpf_commands.in: Update list of BPF_* command constants.
* xlat/bpf_map_types.in: Update list of BPF_MAP_TYPE_* constants.
* xlat/bpf_prog_types.in: Update list of BPF_PROG_TYPE_* constants.
* tests/bpf.c [HAVE_UNION_BPF_ATTR_BPF_FD] (obj_manage): New function.
[HAVE_UNION_BPF_ATTR_ATTACH_TYPE] (prog_cgroup): Likewise.
(main): Use them.
Before this change, all files that exist since 20th century had
copyright headers, while most files that appeared later didn't. This
change fixes the inconsistency by adding missing copyright headers.
It doesn't mean that copyright headers became maintained. In my view,
git history provides much better information on this subject and is much
more accurate than copyright headers.
