#compdef netsniff-ng
#
# netsniff-ng.zsh -- zsh completion function for netsniff-ng
#
# Copyright (C) 2013 Hideo Hattori <hhatto.jp@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.

typeset -A opt_args
local context state line

_cpu () {
    _cpus=(${${(f)"$(grep processor /proc/cpuinfo | awk '{print $3}')"}})
    compadd -a _cpus
}

_user_info () {
    user_info=(${${(f)"$(awk -F':' '{print $3":"$1}' /etc/passwd)"}})
    _describe -t usr "user info" user_info && ret=0
}

_group_info () {
    group_info=(${${(f)"$(awk -F':' '{print $4":"$1}' /etc/passwd)"}})
    _describe -t usr "group info" group_info && ret=0
}

_interfaces () {
    _wanted interfaces expl 'network interface' \
    _net_interfaces
    _values "Pseudo-device that captures on all interfaces" "any"
}

_arguments -s -S \
    "(-i -d --dev --in)"{-i,-d,--dev,--in}"[Input source as netdev, pcap or pcap stdin]:input:_interfaces" \
    "(-o --out)"{-o,--out}"[Output sink as netdev, pcap, directory, trafgen, or stdout]::_gnu_generic" \
    "(-f --filter)"{-f,--filter}"[Use BPF filter file from bpfc or tcpdump-like expression]" \
    "(-t --type)"{-t,--type}"[Filter type]:filter:(host broadcast multicast others outgoing)" \
    "(-F --interval)"{-F,--interval}"[Dump interval if -o is a dir: <num>KiB/MiB/GiB/s/sec/min/hrs]:interval:_gnu_generic" \
    "(-J --jumbo-support)"{-J,--jumbo-support}"[Support for 64KB Super Jumbo Frames (def: 2048B)]" \
    "(-R --rfraw)"{-R,--rfraw}"[Capture or inject raw 802.11 frames]" \
    "(-n --num)"{-n,--num}"[Number of packets until exit (def: 0)]" \
    "(-P --prefix)"{-P,--prefix}"[Prefix for pcaps stored in directory]" \
    "(-T --magic)"{-T,--magic}"[Pcap magic number/pcap format to store, see -D]" \
    "(-D --dump-pcap-types)"{-D,--dump-pcap-types}"[Dump pcap types and magic numbers and quit]" \
    "(-B --dump-bpf)"{-B,--dump-bpf}"[Dump generated BPF assembly]" \
    "(-r --rand)"{-r,--rand}"[Randomize packet forwarding order (dev->dev)]" \
    "(-M --no-promisc)"{-M,--no-promisc}"[No promiscuous mode for netdev]" \
    "(-A --no-sock-mem)"{-A,--no-sock-mem}"[Don\'t tune core socket memory]" \
    "(-m --mmap)"{-m,--mmap}"[Mmap(2) pcap file i.e., for replaying pcaps]" \
    "(-G --sg)"{-G,--sg}"[Scatter/gather pcap file I/O]" \
    "(-c --clrw)"{-c,--clrw}"[Use slower read(2)/write(2) I/O]" \
    "(-S --ring-size)"{-S,--ring-size}"[Specify ring size to: <num>KiB/MiB/GiB]:ringsize:" \
    "(-k --kernel-pull)"{-k,--kernel-pull}"[Kernel pull from user interval in us (def: 10us)]:kernelpull:_gnu_generic" \
    "(-b --bind-cpu)"{-b,--bind-cpu}"[Bind to specific CPU]:cpunum:_cpu" \
    "(-u --user)"{-u,--user}"[Drop privileges and change to userid]:user:_user_info" \
    "(-g --group)"{-g,--group}"[Drop privileges and change to groupid]:group:_group_info" \
    "(-H --prio-high)"{-H,--prio-high}"[Make this high priority process]" \
    "(-Q --notouch-irq)"{-Q,--notouch-irq}"[Do not touch IRQ CPU affinity of NIC]" \
    "(-s --silent)"{-s,--silent}"[Do not print captured packets]" \
    "(-q --less)"{-q,--less}"[Print less-verbose packet information]" \
    "(-X --hex)"{-X,--hex}"[Print packet data in hex format]" \
    "(-l --ascii)"{-l,--ascii}"[Print human-readable packet data]" \
    "(-U --update)"{-U,--update}"[Update GeoIP databases]" \
    "(-V --verbose)"{-V,--verbose}"[Be more verbose]" \
    {-v,--version}"[Show version]:" \
    {-h,--help}"[Guess what?!]:" \
    "*::args:_gnu_generic"
>7</td><td><span class='deletions'>-48</span>/<span class='insertions'>+641</span></td></tr>
<tr><td><span title='2017-02-03 15:16:46 -0500'>2017-02-03</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=295a6e06d21e1f469c9f38b00125a13b60ad4e7c'>net/sched: act_ife: Change to use ife module</a></td><td>Yotam Gigi</td><td>2</td><td><span class='deletions'>-78</span>/<span class='insertions'>+33</span></td></tr>
<tr><td><span title='2017-02-03 15:16:45 -0500'>2017-02-03</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=1ce8460496c05379c66edc178c3c55ca4e953044'>net: Introduce ife encapsulation module</a></td><td>Yotam Gigi</td><td>5</td><td><span class='deletions'>-0</span>/<span class='insertions'>+165</span></td></tr>
<tr><td><span title='2017-02-03 15:16:45 -0500'>2017-02-03</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=1d5e7c859e81a66674d194c346119d154d31e9dc'>net/sched: act_ife: Unexport ife_tlv_meta_encode</a></td><td>Yotam Gigi</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+2</span></td></tr>
<tr><td><span title='2017-02-03 11:19:34 -0500'>2017-02-03</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=3541f9e8bdebce02458882b66b638d7302c1f616'>tcp: add tcp_mss_clamp() helper</a></td><td>Eric Dumazet</td><td>4</td><td><span class='deletions'>-23</span>/<span class='insertions'>+8</span></td></tr>
<tr><td><span title='2017-02-02 23:34:19 -0500'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>net: add LINUX_MIB_PFMEMALLOCDROP counter</a></td><td>Eric Dumazet</td><td>2</td><td><span class='deletions'>-2</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2017-02-02 23:09:08 -0500'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=661091093918657ab544fb8ca91a5ab172a986dc'>net: ipv4: remove fib_lookup.h from devinet.c include list</a></td><td>David Ahern</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+0</span></td></tr>
<tr><td><span title='2017-02-02 23:03:05 -0500'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=b9ea2a7be758f2c07a0c044645edc409a8a388fd'>net: remove useless pfmemalloc setting</a></td><td>Eric Dumazet</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+0</span></td></tr>
<tr><td><span title='2017-02-02 21:58:02 -0500'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=ba94f3088b792b16ea576a256a6030feddc87f24'>unix: add ioctl to open a unix socket file with O_PATH</a></td><td>Andrey Vagin</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+41</span></td></tr>
<tr><td><span title='2017-02-02 16:54:00 -0500'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=e2160156bf2a7d5018e99a9993fbcdda0abac09b'>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</a></td><td>David S. Miller</td><td>12</td><td><span class='deletions'>-104</span>/<span class='insertions'>+93</span></td></tr>
<tr><td><span title='2017-02-01 11:52:27 -0800'>2017-02-01</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=6d04dfc8966019b8b0977b2cb942351f13d2b178'>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</a></td><td>Linus Torvalds</td><td>10</td><td><span class='deletions'>-103</span>/<span class='insertions'>+86</span></td></tr>
<tr><td><span title='2017-02-01 14:10:03 -0500'>2017-02-01</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=f3b20313aef93f9cfda76fec2c05625f88510f18'>net/sched: act_psample: Remove unnecessary ASSERT_RTNL</a></td><td>Yotam Gigi</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+0</span></td></tr>
<tr><td><span title='2017-02-01 14:10:03 -0500'>2017-02-01</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=cadb9c9fdbc6a624d57b5ecdfd412b5800848703'>net/sched: act_sample: Fix error path in init</a></td><td>Yotam Gigi</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2017-02-01 12:55:42 -0500'>2017-02-01</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=06425c308b92eaf60767bc71d359f4cbc7a561f8'>tcp: fix 0 divide in __tcp_select_window()</a></td><td>Eric Dumazet</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2017-02-01 12:27:33 -0500'>2017-02-01</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=63117f09c768be05a0bf465911297dc76394f686'>ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()</a></td><td>Dan Carpenter</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2017-02-01 12:13:52 -0500'>2017-02-01</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=1f5e29ce7989eb75652774004b962ee1eb6e56ca'>net: ipv6: add NLM_F_APPEND in notifications when applicable</a></td><td>David Ahern</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+3</span></td></tr>
<tr><td><span title='2017-02-01 12:02:48 -0500'>2017-02-01</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=b2504a5dbef3305ef41988ad270b0e8ec289331c'>net: reduce skb_warn_bad_offload() noise</a></td><td>Eric Dumazet</td><td>1</td><td><span class='deletions'>-3</span>/<span class='insertions'>+9</span></td></tr>
<tr><td><span title='2017-02-01 11:57:33 -0500'>2017-02-01</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=fd62d9f5c575f0792f150109f1fd24a0d4b3f854'>net/sched: matchall: Fix configuration race</a></td><td>Yotam Gigi</td><td>1</td><td><span class='deletions'>-82</span>/<span class='insertions'>+45</span></td></tr>
<tr><td><span title='2017-02-01 11:53:23 -0500'>2017-02-01</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=160ca0142431c19386db976302fd4b07c587f651'>rtnetlink: Handle IFLA_MASTER parameter when processing rtnl_newlink</a></td><td>Theuns Verwoerd</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+6</span></td></tr>