Link layer header was incorrectly taken into account when
calculating the checksum.
Change-Id: If09612145b87ed266998341d380eb6d5ecdde7cf
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The print about packet length is the data part of the length
and does not include the ll header.
Change-Id: Ia66eb830796a572ffa416df1e6d0badcbe9f9aac
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Now uses net_nbuf_ll() to point to link layer header.
Also the ARP req test passes properly.
Change-Id: If649ff19a064490bff33d03b4ce70ef11bfa7cd5
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This is shorter to write and less error prone.
Change-Id: I67d3b75e0b39f58a4ea655e91530dff6f9fcc6e0
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Use 192.0.2.0/24 address space that is specified in RFC 5737.
Change-Id: Iff2545f5b0f4817c99813c986d57801e166967a3
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This helps to prevent ARP cache poisoning.
Change-Id: I3cc2adcc3d06520fecfdccc3b415575bb714e27b
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If user is setting the IPv4 address to a given network interface
manually and if lifetime is set to infinite, then set the
state of the address to preferred.
Change-Id: If6e331ac5655d0df0d3b67bb07bcf8cd06351e3d
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If CONFIG_SLIP_TAP is defined, then ethernet link layer header is
added before the packet.
Change-Id: I3d266017f85683999d3c67de49b75b60686d7ba7
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This implements a small IPv4 ARP cache that is used in
Ethernet networks.
Change-Id: I9ab38ee14a799f8573f4d4e0eade1be107d42f1a
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The network device driver can specify what kind of functionality
it supports. Currently there exists one flag that can be used
in ethernet devices that tells if ARP should be enabled or not.
Change-Id: Ieaaefcfc7cdd65f44190248f507ac3cb512a323e
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Now making sure we are doing the IP address assignment correctly.
Change-Id: I8bf9233b932321a14df99ce49a39581f1343d004
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The fix prevents the net_nbuf_unref() from removing fragment
list if the top level net_buf is not removed.
Change-Id: Ice580c25bd74f3239c01321f2b9d61cc8c0c9c1d
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Instead of using hard coded net_if, get the default network
interface using net_if_get_default() function.
Change-Id: I6248555ce57ae5196adea7baa9db325660a71255
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Call ICMPv4 handler when receiving ICMP v4 packet.
Currently only echo-request msg is handled.
Change-Id: Ib59c65b38f13c484f1842485118dad32fb6a6f36
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Call ICMPv6 handler when receiving such a network packet.
Change-Id: I2ebe612bd4a4615e8cd1c8b323507c6a03f6008d
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The host will be able to respond to ICMPv6 messages.
An echo-request handler is implemented and it will send
echo-reply when needed.
Change-Id: I08f4703bab5cf3e95d3ae722ebc7a386d22fe17e
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Right now there are tests for IP packet checksum calculation.
Change-Id: I1e9e72d01d4690728269c4484f8628350cf95729
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Various network utility routines can debug print after this.
The Kconfig option is called CONFIG_NETWORK_IP_STACK_DEBUG_UTILS
Change-Id: I8384f974bd3c4965a6ef401bff8060389fab51ad
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Added function that is used when calculating various IP
protocol checksums. The function works with fragmented
net_buf data.
Change-Id: Icaef707ba15ac2729608929e52e235e6e8a154dc
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Only usable if network debugging is activated.
Change-Id: Id7d70d88b5ddca772603e5d2c567b8df23cf084e
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Each network interface needs its own stack for TX fiber.
Change-Id: I9647c2b945a3d36bc77c00dad11badb0d5f851e5
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This function is not meant to be used by applications as it
requires that the IP headers etc. are already in place.
Change-Id: I9099671111a029cdf630d131d7af09b147486f64
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Renamed net_recv() to net_recv_data() so that the more generic
name can be used by applications. The net_recv_data() is only
meant to be used when L2 layer feeds data into L3 (IP) layer.
Change-Id: Iba155d51f81e3b99964fa916fe87a05a8bf8766a
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
A default hop limit can be configured via Kconfig.
Change-Id: I5cbd130882e043e24488c4501e86fce0f91d48df
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Making all big IP address print functions inline will increase
the code space too much. So moving the big functions to utils.c
and just leaving the stubs to be inline. These functions are
available only when debugging is activated.
Change-Id: Ib76846d282a821e99885ec1801df4302bb0c9b42
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Add a macro to get and cast the ICMP protocol header.
Change-Id: Ief3f69d1b3dbe9dd55bc0a032b3506c8e0370563
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Some API functions that check IP addresses were not documented
properly.
Change-Id: I0e7361447db55037888c62ada6b55e3cf5f410f7
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Check if we have received IPv4 packet and call a handler
function to process it.
Change-Id: I9f9e5f0888d2c3b91401c98f4925647ddce09962
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Make sure that the net_if.c compiles correctly when IPv6 and IPv4
are activated in config file.
Change-Id: Icaeba2c2ac7003ffaba516afd476991bf150165d
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Added more functions to get proper IPv6 address from
a given network interface.
Change-Id: I5aecdb35eb549a0781949134ab4821dcb8ce9e7b
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
These tests will check that caller is able to set IPv4 address
to a network interface and check if an address is one of the
assigned to a network interface.
Change-Id: I8aa748c40fbc02eef50ccf76d10a0057ef29021b
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Allow user to assign IPv4 addresses to a network interface.
Change-Id: I77be4ed5eb0231eb12b4ad47cb6076c8f4238124
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The caller is able to add and lookup network interface IPv6
addresses.
Change-Id: I7f43e18bd1fa69c7dcd2f6b46ad33043c28b92e9
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
IPv6 utility functions that check if a given IPv6 address
belongs to one of host network interfaces, and whether
the address is a given type.
Change-Id: If251534ae0af41963d45e305e7ba505a940d2fdc
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If the source address is multicast, then drop the IPv6 packet.
Change-Id: Ibe733161d67f047469a25a5955c41c335e472945
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Check if we have received IPv6 packet and call a handler
function to process it.
Change-Id: I1226729685ae2a805128b587e2a37e0016d53ecc
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
