/*
 * LLMNR (RFC 4705) packet format definitions
 *
 * Copyright (C) 2015 Tobias Klauser <tklauser@distanz.ch>
 *
 * This file is part of llmnrd.
 *
 * llmnrd is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 2 of the License.
 *
 * llmnrd is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with llmnrd.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef LLMNR_PACKET_H
#define LLMNR_PACKET_H

#include <stdint.h>

#include "compiler.h"

#define LLMNR_IPV4_MCAST_ADDR	"224.0.0.252"
#define LLMNR_IPV6_MCAST_ADDR	"ff02:0:0:0:0:0:1:3"

#define LLMNR_UDP_PORT		5355

/*
 * LLMNR packet header (RFC 4795, section 2.1.1)
 */
struct llmnr_hdr {
	uint16_t id;
	uint16_t flags;
#define LLMNR_F_QR	0x8000
#define LLMNR_F_OPCODE	0x7800
#define LLMNR_F_C	0x0400
#define LLMNR_F_TC	0x0200
#define LLMNR_F_T	0x0100
#define LLMNR_F_RCODE	0x000f
	uint16_t qdcount;
	uint16_t ancount;
	uint16_t nscount;
	uint16_t arcount;
} __packed;

/* Maximum label length according to RFC 1035 */
#define LLMNR_LABEL_MAX_SIZE	63

/* TYPE values according to RFC1035, section 3.2.2 */
#define LLMNR_TYPE_A		1
#define LLMNR_TYPE_NS		2
#define LLMNR_TYPE_CNAME	5
#define LLMNR_TYPE_SOA		6
#define LLMNR_TYPE_PTR		12
#define LLMNR_TYPE_HINFO	13
#define LLMNR_TYPE_MINFO	14
#define LLMNR_TYPE_MX		15
#define LLMNR_TYPE_TXT		16
#define LLMNR_TYPE_AAAA		28	/* RFC 3596 */

/* QTYPE values according to RFC1035, section 3.2.3 */
#define LLMNR_QTYPE_A		LLMNR_TYPE_A
#define LLMNR_QTYPE_AAAA	LLMNR_TYPE_AAAA
#define LLMNR_QTYPE_ANY		255

/* CLASS values */
#define LLMNR_CLASS_IN		1

/* QCLASS values */
#define LLMNR_QCLASS_IN		LLMNR_CLASS_IN

/* Default RR TTL in seconds (RFC 4795, section 2.8) */
#define LLMNR_TTL_DEFAULT	30

#endif /* LLMNR_PACKET_H */
i/linux/net-next.git/log/'>
<input type='hidden' name='id' value='6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7'/><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>Andrew Lutomirski &lt;luto@kernel.org&gt;</td><td class='right'>2016-10-17 10:06:27 -0700</td></tr>
<tr><th>committer</th><td>Herbert Xu &lt;herbert@gondor.apana.org.au&gt;</td><td class='right'>2016-10-19 11:20:21 +0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7'>6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7'>de7c243da39513abf015bca7993dff3245467729</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=1001354ca34179f3db924eb66672442a173147dc'>1001354ca34179f3db924eb66672442a173147dc</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7&amp;id2=1001354ca34179f3db924eb66672442a173147dc'>diff</a>)</td></tr></table>
<div class='commit-subject'>hwrng: core - Don't use a stack buffer in add_early_randomness()</div><div class='commit-msg'>hw_random carefully avoids using a stack buffer except in
add_early_randomness().  This causes a crash in virtio_rng if
CONFIG_VMAP_STACK=y.

Reported-by: Matt Mullins &lt;mmullins@mmlx.us&gt;
Tested-by: Matt Mullins &lt;mmullins@mmlx.us&gt;
Fixes: d3cc7996473a ("hwrng: fetch randomness only after device init")
Signed-off-by: Andy Lutomirski &lt;luto@kernel.org&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7'>Diffstat</a></div><table summary='diffstat' class='diffstat'>