/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009 - 2013 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>

#include "pcap_io.h"
#include "built_in.h"
#include "xutils.h"
#include "xio.h"
#include "die.h"
#include "iosched.h"

static ssize_t pcap_rw_write(int fd, pcap_pkthdr_t *phdr, enum pcap_type type,
			     const uint8_t *packet, size_t len)
{
	ssize_t ret, hdrsize = pcap_get_hdr_length(phdr, type), hdrlen = 0;

	ret = write_or_die(fd, &phdr->raw, hdrsize);
	if (unlikely(ret != hdrsize))
		panic("Failed to write pkt header!\n");

	hdrlen = pcap_get_length(phdr, type);
	if (unlikely(hdrlen != len))
		return -EINVAL;

	ret = write_or_die(fd, packet, hdrlen);
	if (unlikely(ret != hdrlen))
		panic("Failed to write pkt payload!\n");

	return hdrsize + hdrlen;
}

static ssize_t pcap_rw_read(int fd, pcap_pkthdr_t *phdr, enum pcap_type type,
			    uint8_t *packet, size_t len)
{
	ssize_t ret, hdrsize = pcap_get_hdr_length(phdr, type), hdrlen = 0;

	ret = read_or_die(fd, &phdr->raw, hdrsize);
	if (unlikely(ret != hdrsize))
		return -EIO;

	hdrlen = pcap_get_length(phdr, type);
	if (unlikely(hdrlen == 0 || hdrlen > len))
                return -EINVAL;

	ret = read(fd, packet, hdrlen);
	if (unlikely(ret != hdrlen))
		return -EIO;

	return hdrsize + hdrlen;
}

static void pcap_rw_init_once(void)
{
	set_ioprio_rt();
}

static void pcap_rw_fsync(int fd)
{
	fdatasync(fd);
}

const struct pcap_file_ops pcap_rw_ops = {
	.init_once_pcap = pcap_rw_init_once,
	.pull_fhdr_pcap = pcap_generic_pull_fhdr,
	.push_fhdr_pcap = pcap_generic_push_fhdr,
	.read_pcap = pcap_rw_read,
	.write_pcap = pcap_rw_write,
	.fsync_pcap = pcap_rw_fsync,
};
f4dd08b0fd2a8eba1694fd8e77ddb67'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/Documentation/input/gamepad.txt?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/Documentation/input/gamepad.txt'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>Documentation</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/input?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>input</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>gamepad.txt</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-01-14 16:20:42 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-01-14 16:20:42 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation/input/gamepad.txt?id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>8e84e3cc86074aabd3d2ea9c48e33221bc01d4fe</a> /<a href='/cgit.cgi/linux/net-next.git/tree/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>Documentation/input/gamepad.txt</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=75f26df6ae6f8787fc6198609c8be17400a69e25'>75f26df6ae6f8787fc6198609c8be17400a69e25</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67&amp;id2=75f26df6ae6f8787fc6198609c8be17400a69e25'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=83f1bfd6f57c422da70d1e296df1becc35c868be'>83f1bfd6f57c422da70d1e296df1becc35c868be</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/input/gamepad.txt?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67&amp;id2=83f1bfd6f57c422da70d1e296df1becc35c868be'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid</div><div class='commit-msg'>Pull HID updates from Jiri Kosina:

 - appoint Benjamin Tissoires as co-maintainer / designated reviewer

 - sysfs report_descriptor visibility fix for unclaimed devices, from
   Andy Lutomirski

 - suspend/resume fixes for Sony driver from Frank Praznik

 - IRQ deadlock fix from Ioan-Adrian Ratiu

 - hid-i2c fixes affecting (at least) Yoga 900 from Mika Westerberg and
   Srinivas Pandruvada

 - a lot of new device support (especially, but not limited to, Wacom)
   and assorted small misc fixes

 - almost complete G920 support; the only bit that is missing is
   switching the device to HID mode automatically; Simon Wood and Michal
   Maly are working on it.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (46 commits)
  Revert "INPUT: xpad: switch Logitech G920 Wheel into HID mode"
  HID: sensor-hub: Add quirk for Lenovo Yoga 900 with ITE Chips
  HID: Add new PID for Microchip Pick16F1454
  HID: wacom: Use correct report to query pen ID from INTUOSHT2 devices
  HID: i2c-hid: Prevent sending reports from racing with device reset
  HID: use kobj_to_dev()
  HID: wiimote: use dev_to_wii()
  HID: add a new helper to_hid_driver()
  HID: use to_hid_device()
  HID: move to_hid_device() to hid.h
  HID: usbhid: use to_usb_device
  HID: corsair: Convert to use module_hid_driver
  HID: input: ignore the battery in OKLICK Laser BTmouse
  HID: wacom: Fix pad button range for CINTIQ_COMPANION_2
  HID: wacom: Fix touchring value reporting
  HID: wacom: Report 'strip2' values in ABS_RY
  HID: wacom: Limit touchstrip data to 13 bits
  HID: wacom: bitwise vs logical ORs
  HID: wacom: Apply lowres quirk to BAMBOO_TOUCH devices
  HID: enable hid device to suspend/resume asynchronously
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=c2848f2eef4dd08b0fd2a8eba1694fd8e77ddb67'>Diffstat</a> (limited to 'Documentation/input/gamepad.txt')</div><table summary='diffstat' class='diffstat'>