)]}'
{
  "commit": "953d10936be8d64fd66f09098d3a342bbb2756f8",
  "tree": "dd5f4b48bd1cc95e0e08710d6d1c418a1c91a67a",
  "parents": [
    "32ad607145dca23d28ca714ef0845c8170d3fc06"
  ],
  "author": {
    "name": "Alexei Starovoitov",
    "email": "ast@plumgrid.com",
    "time": "Tue Jun 24 18:00:41 2014 -0700"
  },
  "committer": {
    "name": "Alexei Starovoitov",
    "email": "ast@plumgrid.com",
    "time": "Thu Sep 25 21:58:02 2014 -0700"
  },
  "message": "samples: bpf: example of stateful socket filtering\n\nthis socket filter example does:\n\n- creates a hashtable in kernel with key 4 bytes and value 8 bytes\n\n- populates map[6] \u003d 0; map[17] \u003d 0;  // 6 - tcp_proto, 17 - udp_proto\n\n- loads eBPF program:\n  r0 \u003d skb[14 + 9]; // load one byte of ip-\u003eproto\n  *(u32*)(fp - 4) \u003d r0;\n  value \u003d bpf_map_lookup_elem(map_fd, fp - 4);\n  if (value)\n       (*(u64*)value) +\u003d 1;\n\n- attaches this program to eth0 raw socket\n\n- every second user space reads map[6] and map[17] to see how many\n  TCP and UDP packets were seen on eth0\n\nSigned-off-by: Alexei Starovoitov \u003cast@plumgrid.com\u003e\n",
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      "new_path": "samples/bpf/sock_example.c"
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}