kernel/linux.git/tools/bpf/bpftool/bash-completion, branch v5.4.185

tools: bpftool: add "bpftool map freeze" subcommand

2019-08-21T19:17:27+00:00

Add a new subcommand to freeze maps from user space. Signed-off-by: Quentin Monnet Reviewed-by: Jakub Kicinski Signed-off-by: Daniel Borkmann

tools: bpftool: implement "bpftool btf show|list"

2019-08-20T16:51:06+00:00

Add a "btf list" (alias: "btf show") subcommand to bpftool in order to dump all BTF objects loaded on a system. When running the command, hash tables are built in bpftool to retrieve all the associations between BTF objects and BPF maps and programs. This allows for printing all such associations when listing the BTF objects. The command is added at the top of the subcommands for "bpftool btf", so that typing only "bpftool btf" also comes down to listing the programs. We could not have this with the previous command ("dump"), which required a BTF object id, so it should not break any previous behaviour. This also makes the "btf" command behaviour consistent with "prog" or "map". Bash completion is updated to use "bpftool btf" instead of "bpftool prog" to list the BTF ids, as it looks more consistent. Example output (plain): # bpftool btf show 9: size 2989B prog_ids 21 map_ids 15 17: size 2847B prog_ids 36 map_ids 30,29,28 26: size 2847B Signed-off-by: Quentin Monnet Reviewed-by: Jakub Kicinski Signed-off-by: Alexei Starovoitov

tools: bpftool: add bash-completion for net attach/detach

2019-08-16T00:00:33+00:00

This commit adds bash-completion for new "net attach/detach" subcommand for attaching XDP program on interface. Signed-off-by: Daniel T. Lee Signed-off-by: Alexei Starovoitov

tools: bpftool: add support for reporting the effective cgroup progs

2019-07-31T04:15:02+00:00

Takshak said in the original submission: With different bpf attach_flags available to attach bpf programs specially with BPF_F_ALLOW_OVERRIDE and BPF_F_ALLOW_MULTI, the list of effective bpf-programs available to any sub-cgroups really needs to be available for easy debugging. Using BPF_F_QUERY_EFFECTIVE flag, one can get the list of not only attached bpf-programs to a cgroup but also the inherited ones from parent cgroup. So a new option is introduced to use BPF_F_QUERY_EFFECTIVE query flag here to list all the effective bpf-programs available for execution at a specified cgroup. Reused modified test program test_cgroup_attach from tools/testing/selftests/bpf: # ./test_cgroup_attach With old bpftool: # bpftool cgroup show /sys/fs/cgroup/cgroup-test-work-dir/cg1/ ID AttachType AttachFlags Name 271 egress multi pkt_cntr_1 272 egress multi pkt_cntr_2 Attached new program pkt_cntr_4 in cg2 gives following: # bpftool cgroup show /sys/fs/cgroup/cgroup-test-work-dir/cg1/cg2 ID AttachType AttachFlags Name 273 egress override pkt_cntr_4 And with new "effective" option it shows all effective programs for cg2: # bpftool cgroup show /sys/fs/cgroup/cgroup-test-work-dir/cg1/cg2 effective ID AttachType AttachFlags Name 273 egress override pkt_cntr_4 271 egress override pkt_cntr_1 272 egress override pkt_cntr_2 Compared to original submission use a local flag instead of global option. We need to clear query_flags on every command, in case batch mode wants to use varying settings. v2: (Takshak) - forbid duplicated flags; - fix cgroup path freeing. Signed-off-by: Takshak Chahande Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Reviewed-by: Takshak Chahande Signed-off-by: Alexei Starovoitov

tools: Add definitions for devmap_hash map type

2019-07-29T20:50:48+00:00

This adds selftest and bpftool updates for the devmap_hash map type. Signed-off-by: Toke Høiland-Jørgensen Acked-by: Jesper Dangaard Brouer Signed-off-by: Alexei Starovoitov

tools: bpftool: add completion for bpftool prog "loadall"

2019-07-08T15:20:34+00:00

Bash completion for proposing the "loadall" subcommand is missing. Let's add it to the completion script. Add a specific case to propose "load" and "loadall" for completing: $ bpftool prog load ^ cursor is here Otherwise, completion considers that $command is in load|loadall and starts making related completions (file or directory names, as the number of words on the command line is below 6), when the only suggested keywords should be "load" and "loadall" until one has been picked and a space entered after that to move to the next word. Signed-off-by: Quentin Monnet Reviewed-by: Jakub Kicinski Signed-off-by: Daniel Borkmann

tools: bpftool: add "prog run" subcommand to test-run programs

2019-07-05T21:48:07+00:00

Add a new "bpftool prog run" subcommand to run a loaded program on input data (and possibly with input context) passed by the user. Print output data (and output context if relevant) into a file or into the console. Print return value and duration for the test run into the console. A "repeat" argument can be passed to run the program several times in a row. The command does not perform any kind of verification based on program type (Is this program type allowed to use an input context?) or on data consistency (Can I work with empty input data?), this is left to the kernel. Example invocation: # perl -e 'print "\x0" x 14' | ./bpftool prog run \ pinned /sys/fs/bpf/sample_ret0 \ data_in - data_out - repeat 5 0000000 0000 0000 0000 0000 0000 0000 0000 | ........ ...... Return value: 0, duration (average): 260ns When one of data_in or ctx_in is "-", bpftool reads from standard input, in binary format. Other formats (JSON, hexdump) might be supported (via an optional command line keyword like "data_fmt_in") in the future if relevant, but this would require doing more parsing in bpftool. v2: - Fix argument names for function check_single_stdin(). (Yonghong) Signed-off-by: Quentin Monnet Reviewed-by: Jakub Kicinski Acked-by: Yonghong Song Signed-off-by: Daniel Borkmann

bpftool: support cgroup sockopt

2019-06-27T22:25:17+00:00

Support sockopt prog type and cgroup hooks in the bpftool. Cc: Andrii Nakryiko Cc: Martin Lau Acked-by: Jakub Kicinski Signed-off-by: Stanislav Fomichev Signed-off-by: Alexei Starovoitov

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2019-06-18T03:20:36+00:00

Honestly all the conflicts were simple overlapping changes, nothing really interesting to report. Signed-off-by: David S. Miller

bpf, bpftool: enable recvmsg attach types

2019-06-06T23:53:12+00:00

Trivial patch to bpftool in order to complete enabling attaching programs to BPF_CGROUP_UDP{4,6}_RECVMSG. Signed-off-by: Daniel Borkmann Acked-by: Andrey Ignatov Acked-by: Martin KaFai Lau Signed-off-by: Alexei Starovoitov