user/sven/linux.git/tools/net, branch v4.8.6

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

tools: bpf_asm: cleanup vlan extension related token

2015-03-25T01:21:41Z

We now have K_VLANT, K_VLANP and K_VLANTPID. Clean them up into more descriptive token, namely K_VLAN_TCI, K_VLAN_AVAIL and K_VLAN_TPID. Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller

filter: introduce SKF_AD_VLAN_TPID BPF extension

2015-03-24T19:25:15Z

If vlan offloading takes place then vlan header is removed from frame and its contents, both vlan_tci and vlan_proto, is available to user space via TPACKET interface. However, only vlan_tci can be used in BPF filters. This commit introduces a new BPF extension. It makes possible to load the value of vlan_proto (vlan TPID) to register A. Support for classic BPF and eBPF is being added, analogous to skb->protocol. Cc: Daniel Borkmann Cc: Alexei Starovoitov Cc: Jiri Pirko Signed-off-by: Michal Sekletar Acked-by: Daniel Borkmann Acked-by: Alexei Starovoitov Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

tools: bpf_jit_disasm: increase image buffer size

2014-05-16T20:44:08Z

JITed seccomp filters can be quite large if they check a lot of syscalls Simply increase buffer size Signed-off-by: Alexei Starovoitov Acked-by: Daniel Borkmann Signed-off-by: David S. Miller