linux-dev/tools/net, branch master

tools: rename tools/net directory to tools/bpf

2017-10-05T04:45:05Z

We currently only have BPF tools in the tools/net directory. We are about to add more BPF tools there, not necessarily networking related, rename the directory and related Makefile targets to bpf. Suggested-by: Daniel Borkmann Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Acked-by: Daniel Borkmann Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller

tools: bpf_jit_disasm: Handle large images.

2017-06-14T19:03:22Z

Dynamically allocate memory so that JIT images larger than the size of the statically allocated array can be handled. Signed-off-by: David Daney Acked-by: Daniel Borkmann Signed-off-by: David S. Miller

tools: bpf_jit_disasm: Add option to dump JIT image to a file.

2017-04-13T17:04:03Z

When debugging the JIT on an embedded platform or cross build environment, libbfd may not be available, making it impossible to run bpf_jit_disasm natively. Add an option to emit a binary image of the JIT code to a file. This file can then be disassembled off line. Typical usage in this case might be (pasting mips64 dmesg output to cat command): $ cat > jit.raw $ bpf_jit_disasm -f jit.raw -O jit.bin $ mips64-linux-gnu-objdump -D -b binary -m mips:isa64r2 -EB jit.bin Signed-off-by: David Daney Acked-by: Daniel Borkmann Signed-off-by: David S. Miller

tools: bpf_jit_disasm: check for klogctl failure

2016-05-09T03:32:59Z

klogctl can fail and return -ve len, so check for this and return NULL to avoid passing a (size_t)-1 to malloc. Signed-off-by: Colin Ian King Acked-by: Daniel Borkmann Signed-off-by: David S. Miller

tools, bpf_asm: simplify parser rule for BPF extensions

2016-02-22T18:29:42Z

We can already use yylval in the lexer for encoding the BPF extension number, so that the parser rules can be further reduced to a single one for each B/H/W case. Signed-off-by: Ray Bellis Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller

bpf_dbg: do not initialise statics to 0

2016-02-11T09:24:45Z

This patch fixes the checkpatch.pl error to bpf_dbg.c: ERROR: do not initialise statics to 0 Signed-off-by: Wei Tang Signed-off-by: David S. Miller

tools/net: Use include/uapi with __EXPORTED_HEADERS__

2015-11-15T22:24:33Z

Use the local uapi headers to keep in sync with "recently" added #define's (e.g. SKF_AD_VLAN_TPID). Refactored CFLAGS, and bpf_asm doesn't need -I. Fixes: 3f356385e8a4 ("filter: bpf_asm: add minimal bpf asm tool") Signed-off-by: Kamal Mostafa Acked-by: Daniel Borkmann Signed-off-by: David S. Miller

tools: bpf_jit_disasm: make get_last_jit_image return unsigned

2015-09-29T05:18:01Z

The function returns always non-negative values. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2046107 Signed-off-by: Andrzej Hajda Signed-off-by: David S. Miller

bpf_jit_disasm: also support reading jit dump from file

2015-07-31T22:13:14Z

This patch adds support to read the dmesg BPF JIT dump also from a file instead of the klog buffer. I found this quite useful when going through some 'before/after patch' logs. It also fixes a regex leak found by valgrind when no image dump was found. Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller

tools: bpf_jit_disasm: fix segfault on disabled debugging log output

2015-05-27T04:24:10Z

With recent debugging, I noticed that bpf_jit_disasm segfaults when there's no debugging output from the JIT compiler to the kernel log. Reason is that when regexec(3) doesn't match on anything, start/end offsets are not being filled out and contain some uninitialized garbage from stack. Thus, we need zero out offsets first. Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller