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6lowpan: nhc: add other known rfc6282 compressions

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This patch adds other known rfc6282 compression formats to the nhc
framework. These compression formats are known but not implemented yet.
For now this is useful to printout a warning which compression format
isn't supported.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Martin Townsend <mtownsend1973@gmail.com>
Reviewed-by: Stefan Schmidt <s.schmidt@samsung.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alexander Aring 2015-01-09 16:42:59 +01:00 committed by Marcel Holtmann
parent cc6ed26847
commit ff0fcc2987
9 changed files with 213 additions and 0 deletions
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38
net/6lowpan/Kconfig
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@ -14,6 +14,44 @@ menuconfig 6LOWPAN_NHC
if 6LOWPAN_NHC
config 6LOWPAN_NHC_DEST
tristate "Destination Options Header Support"
default y
---help---
6LoWPAN IPv6 Destination Options Header compression according to
RFC6282.
config 6LOWPAN_NHC_FRAGMENT
tristate "Fragment Header Support"
default y
---help---
6LoWPAN IPv6 Fragment Header compression according to RFC6282.
config 6LOWPAN_NHC_HOP
tristate "Hop-by-Hop Options Header Support"
default y
---help---
6LoWPAN IPv6 Hop-by-Hop Options Header compression according to
RFC6282.
config 6LOWPAN_NHC_IPV6
tristate "IPv6 Header Support"
default y
---help---
6LoWPAN IPv6 Header compression according to RFC6282.
config 6LOWPAN_NHC_MOBILITY
tristate "Mobility Header Support"
default y
---help---
6LoWPAN IPv6 Mobility Header compression according to RFC6282.
config 6LOWPAN_NHC_ROUTING
tristate "Routing Header Support"
default y
---help---
6LoWPAN IPv6 Routing Header compression according to RFC6282.
config 6LOWPAN_NHC_UDP
tristate "UDP Header Support"
default y

6
net/6lowpan/Makefile
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@ -3,4 +3,10 @@ obj-$(CONFIG_6LOWPAN) += 6lowpan.o
6lowpan-y := iphc.o nhc.o
#rfc6282 nhcs
obj-$(CONFIG_6LOWPAN_NHC_DEST) += nhc_dest.o
obj-$(CONFIG_6LOWPAN_NHC_FRAGMENT) += nhc_fragment.o
obj-$(CONFIG_6LOWPAN_NHC_HOP) += nhc_hop.o
obj-$(CONFIG_6LOWPAN_NHC_IPV6) += nhc_ipv6.o
obj-$(CONFIG_6LOWPAN_NHC_MOBILITY) += nhc_mobility.o
obj-$(CONFIG_6LOWPAN_NHC_ROUTING) += nhc_routing.o
obj-$(CONFIG_6LOWPAN_NHC_UDP) += nhc_udp.o

6
net/6lowpan/iphc.c
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@ -613,6 +613,12 @@ EXPORT_SYMBOL_GPL(lowpan_header_compress);
static int __init lowpan_module_init(void)
{
request_module_nowait("nhc_dest");
request_module_nowait("nhc_fragment");
request_module_nowait("nhc_hop");
request_module_nowait("nhc_ipv6");
request_module_nowait("nhc_mobility");
request_module_nowait("nhc_routing");
request_module_nowait("nhc_udp");
return 0;

28
net/6lowpan/nhc_dest.c Normal file
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@ -0,0 +1,28 @@
/*
* 6LoWPAN IPv6 Destination Options Header compression according to
* RFC6282
*
* This program 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; either version
* 2 of the License, or (at your option) any later version.
*/
#include "nhc.h"
#define LOWPAN_NHC_DEST_IDLEN 1
#define LOWPAN_NHC_DEST_ID_0 0xe6
#define LOWPAN_NHC_DEST_MASK_0 0xfe
static void dest_nhid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_NHC_DEST_ID_0;
nhc->idmask[0] = LOWPAN_NHC_DEST_MASK_0;
}
LOWPAN_NHC(nhc_dest, "RFC6282 Destination Options", NEXTHDR_DEST, 0,
dest_nhid_setup, LOWPAN_NHC_DEST_IDLEN, NULL, NULL);
module_lowpan_nhc(nhc_dest);
MODULE_DESCRIPTION("6LoWPAN next header RFC6282 Destination Options compression");
MODULE_LICENSE("GPL");

27
net/6lowpan/nhc_fragment.c Normal file
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@ -0,0 +1,27 @@
/*
* 6LoWPAN IPv6 Fragment Header compression according to RFC6282
*
* This program 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; either version
* 2 of the License, or (at your option) any later version.
*/
#include "nhc.h"
#define LOWPAN_NHC_FRAGMENT_IDLEN 1
#define LOWPAN_NHC_FRAGMENT_ID_0 0xe4
#define LOWPAN_NHC_FRAGMENT_MASK_0 0xfe
static void fragment_nhid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_NHC_FRAGMENT_ID_0;
nhc->idmask[0] = LOWPAN_NHC_FRAGMENT_MASK_0;
}
LOWPAN_NHC(nhc_fragment, "RFC6282 Fragment", NEXTHDR_FRAGMENT, 0,
fragment_nhid_setup, LOWPAN_NHC_FRAGMENT_IDLEN, NULL, NULL);
module_lowpan_nhc(nhc_fragment);
MODULE_DESCRIPTION("6LoWPAN next header RFC6282 Fragment compression");
MODULE_LICENSE("GPL");

27
net/6lowpan/nhc_hop.c Normal file
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@ -0,0 +1,27 @@
/*
* 6LoWPAN IPv6 Hop-by-Hop Options Header compression according to RFC6282
*
* This program 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; either version
* 2 of the License, or (at your option) any later version.
*/
#include "nhc.h"
#define LOWPAN_NHC_HOP_IDLEN 1
#define LOWPAN_NHC_HOP_ID_0 0xe0
#define LOWPAN_NHC_HOP_MASK_0 0xfe
static void hop_nhid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_NHC_HOP_ID_0;
nhc->idmask[0] = LOWPAN_NHC_HOP_MASK_0;
}
LOWPAN_NHC(nhc_hop, "RFC6282 Hop-by-Hop Options", NEXTHDR_HOP, 0,
hop_nhid_setup, LOWPAN_NHC_HOP_IDLEN, NULL, NULL);
module_lowpan_nhc(nhc_hop);
MODULE_DESCRIPTION("6LoWPAN next header RFC6282 Hop-by-Hop Options compression");
MODULE_LICENSE("GPL");

27
net/6lowpan/nhc_ipv6.c Normal file
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@ -0,0 +1,27 @@
/*
* 6LoWPAN IPv6 Header compression according to RFC6282
*
* This program 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; either version
* 2 of the License, or (at your option) any later version.
*/
#include "nhc.h"
#define LOWPAN_NHC_IPV6_IDLEN 1
#define LOWPAN_NHC_IPV6_ID_0 0xee
#define LOWPAN_NHC_IPV6_MASK_0 0xfe
static void ipv6_nhid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_NHC_IPV6_ID_0;
nhc->idmask[0] = LOWPAN_NHC_IPV6_MASK_0;
}
LOWPAN_NHC(nhc_ipv6, "RFC6282 IPv6", NEXTHDR_IPV6, 0, ipv6_nhid_setup,
LOWPAN_NHC_IPV6_IDLEN, NULL, NULL);
module_lowpan_nhc(nhc_ipv6);
MODULE_DESCRIPTION("6LoWPAN next header RFC6282 IPv6 compression");
MODULE_LICENSE("GPL");

27
net/6lowpan/nhc_mobility.c Normal file
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@ -0,0 +1,27 @@
/*
* 6LoWPAN IPv6 Mobility Header compression according to RFC6282
*
* This program 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; either version
* 2 of the License, or (at your option) any later version.
*/
#include "nhc.h"
#define LOWPAN_NHC_MOBILITY_IDLEN 1
#define LOWPAN_NHC_MOBILITY_ID_0 0xe8
#define LOWPAN_NHC_MOBILITY_MASK_0 0xfe
static void mobility_nhid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_NHC_MOBILITY_ID_0;
nhc->idmask[0] = LOWPAN_NHC_MOBILITY_MASK_0;
}
LOWPAN_NHC(nhc_mobility, "RFC6282 Mobility", NEXTHDR_MOBILITY, 0,
mobility_nhid_setup, LOWPAN_NHC_MOBILITY_IDLEN, NULL, NULL);
module_lowpan_nhc(nhc_mobility);
MODULE_DESCRIPTION("6LoWPAN next header RFC6282 Mobility compression");
MODULE_LICENSE("GPL");

27
net/6lowpan/nhc_routing.c Normal file
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@ -0,0 +1,27 @@
/*
* 6LoWPAN IPv6 Routing Header compression according to RFC6282
*
* This program 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; either version
* 2 of the License, or (at your option) any later version.
*/
#include "nhc.h"
#define LOWPAN_NHC_ROUTING_IDLEN 1
#define LOWPAN_NHC_ROUTING_ID_0 0xe2
#define LOWPAN_NHC_ROUTING_MASK_0 0xfe
static void routing_nhid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_NHC_ROUTING_ID_0;
nhc->idmask[0] = LOWPAN_NHC_ROUTING_MASK_0;
}
LOWPAN_NHC(nhc_routing, "RFC6282 Routing", NEXTHDR_ROUTING, 0,
routing_nhid_setup, LOWPAN_NHC_ROUTING_IDLEN, NULL, NULL);
module_lowpan_nhc(nhc_routing);
MODULE_DESCRIPTION("6LoWPAN next header RFC6282 Routing compression");
MODULE_LICENSE("GPL");