Most people don't use the 'rarpboot' command, so only enable it when
CONFIG_CMD_RARP is defined.
Signed-off-by: NPeter Tyser <ptyser@xes-inc.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

TFTP'ing a file of size 1747851 bytes with CONFIG_IP_DEFRAG and
CONFIG_TFTP_BLOCKSIZE set to 4096 fails with a timeout, because
the last fragment is not taken into account. This patch fixes
IP fragments having less than 8 bytes of payload.
Signed-off-by: NStephane Fillod <stephane.fillod@grassvalley.com>
Acked-by: NAlessandro Rubini <rubini@gnudd.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

For some reason, (which I can't find any documentation on), if U-Boot
gives a port number higher than 17500 to a Microsoft DNS server, the
server will reply to port 17500, and U-Boot will ignore things (since
that isn't the port it asked the DNS server to reply to).

This fixes that by ensuring the random port number is less than 17500.
Signed-off-by: NRobin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

There are boards out there that do not have network support in
U-Boot (CONFIG_CMD_NET not set), but they do so in Linux. This
makes it desirable to be able to port network configuration (like
the IP address) to the Linux kernel.

We should not make the passing of the IP configuration to Linux
dependent on U-Boot features / settings.

For this, make getenv_IPaddr() global. This fixes build error

u-boot/lib_xxx/board.c:360: undefined reference to `getenv_IPaddr'

on various architectures.
Signed-off-by: NDirk Behme <dirk.behme@googlemail.com>
Acked-by: NBen Warren <biggerbadderben@gmail.com>

Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

'netretry = once' does the same as 'netretry = yes', because it is not stored
when it was tried once.
Signed-off-by: NRemy Bohmer <linux@bohmer.net>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

The defragmenting code is enabled by CONFIG_IP_DEFRAG; the code is
useful for TFTP and NFS transfers.  The user can specify the maximum
defragmented payload as CONFIG_NET_MAXDEFRAG (default 16k).
Since NFS has a bigger per-packet overhead than TFTP, the static
reassembly buffer can hold CONFIG_NET_MAXDEFRAG + the NFS overhead.

The packet buffer is used as an array of "hole" structures, acting as
a double-linked list. Each new fragment can split a hole in two,
reduce a hole or fill a hole. No support is there for a fragment
overlapping two diffrent holes (i.e., thre new fragment is across an
already-received fragment).
Signed-off-by: NAlessandro Rubini <rubini@gnudd.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

 Minor ./net cleanups - no functional changes
  - change #ifdef DEBUG printf(); #endif to just debug()
  - changed __FUNCTION__ to __func__
  - got rid of extra whitespace between function and opening brace
  - removed unnecessary braces on if statements

 gcc dead code elimination should make this functionally/size equivalent
 when DEBUG is not defined. (confirmed on Blackfin, with gcc 4.3.3).
Signed-off-by: NRobin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

Linux's netconsole works much better when you can pass it the MAC address of
the server. (otherwise it just uses broadcast, which everyone else on my
network complains about :)

This sets the env var "serveraddr" (to match ethaddr), so that you can pass
it to linux with whatever bootargs you want to....

addnetconsole=set bootargs $(bootargs) netconsole=@$(ipaddr)/eth0,@$(serverip)/$(serveraddr)
Signed-of-by: NRobin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

Fixed the DHCP/BOOTP/RARP regression introduced in u-boot-2009.06
by initializing our IP addr to 0 in order to accept any IP addr
assigned to us by the DHCP/BOOTP/RARP server.
Ack-by: NRobin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: NMichael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

On 04 Oct 2008 Pieter posted a dns implementation for U-Boot.

http://www.mail-archive.com/u-boot-users@lists.sourceforge.net/msg10216.html
>
> DNS can be enabled by setting CFG_CMD_DNS. After performing a query,
> the serverip environment var is updated.
>
> Probably there are some cosmetic issues with the patch. Unfortunatly I
> do not have the time to correct these. So if anybody else likes DNS
> support in U-Boot and has the time, feel free to patch it in the main tree.

Here it is again - slightly modified & smaller:
  - update to 2009-06 (Pieter's patch was for U-Boot 1.2.0)
  - README.dns is added
  - syntax is changed (now takes a third option, the env var to store
    the result in)
  - add a random port() function in net.c
  - sort Makefile in ./net/Makefile
  - dns just returns unless a env var is given
  - run through checkpatch, and clean up style issues
  - remove packet from stack
  - cleaned up some comments
  - failure returns much faster (if server responds, don't wait for
    timeout)
  - use built in functions (memcpy) rather than byte copy.
Signed-off-by: NRobin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: NPieter Voorthuijsen <pieter.voorthuijsen@prodrive.nl>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

The net code is mostly consistent in using 'Packet' rather than 'Pkt', so
rename the minor detractor to follow suite.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

Fix some issues introduced from commit:
2f70c49e
suggested by Mike Frysinger.

- added some comment for the env_id variable in common_cmd_nvedit.c
- moved some variables in fn scope instead of file scope
- NetInitLoop now static void
Signed-off-by: NHeiko Schocher <hs@denx.de>
Acked-by: NBen Warren <biggerbadderben@gmail.com>

The patch fixes the bug of partial initialization of global network
parameters.

Upon u-boot's start up the first ping command causes a failure of the
consequent TFTP command. It happens in the recently added mechanism of
the NetLoop initialization where initialization of global network
parameters is separated in the NetInitLoop routine which is called per
env_id change. Thus, ping request will initialize the network parameters
necessary for ping operation only, afterwards the env_changed_id will be
set to the env_id that will prevent all following initialization requests
from other protocols.
The problem is that the initialized by ping subset of network parameters
is not sufficient for other protocols and particularly for TFTP which
requires the NetServerIp also.
Signed-off-by: NMichael Zaidman <michael.zaidman@gmail.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

Signed-off-by: NMike Frysinger <vapier@gentoo.org>
CC: Ben Warren <biggerbadderben@gmail.com>

Now that our printf functions support the %pI4 modifier like the kernel,
let's drop the inflexible print_IPaddr() function and covert over to the
%pI4 modifier.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
CC: Ben Warren <biggerbadderben@gmail.com>

NetLoop polls every cycle with getenv some environment variables.
This is horribly slow, especially when the environment is big.

This patch reads only the environment variables in NetLoop,
when they were changed.

Also moved the init part of the NetLoop function in a seperate
function.
Signed-off-by: NHeiko Schocher <hs@denx.de>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

This patch removes volatile from:
volatile IP_t *ip = (IP_t *)xip;

Due to a bug, avr32-gcc will assume that ip is aligned on a word boundary when
using volatile, which causes an exception since xip isn't aligned on a word
boundary.
Signed-off-by: NGunnar Rangoy <gunnar@rangoy.com>
Signed-off-by: NPaul Driveklepp <pauldriveklepp@gmail.com>
Signed-off-by: NOlav Morken <olavmrk@gmail.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

Use the GNU 'date' command to auto-generate a new U-Boot
timestamp on every compile.
Signed-off-by: NPeter Tyser <ptyser@xes-inc.com>

Ignore IP packets which have the "more fragments" flag bit
set.  This flag indicates the IP packet is fragmented and
must be ignored by U-Boot.
Signed-off-by: NPeter Tyser <ptyser@xes-inc.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

These defines were pulled from the "Add simple
IP/UDP fragmentation support" patch from Frank
Haverkamp <haver@vnet.ibm.com>.
Signed-off-by: NPeter Tyser <ptyser@xes-inc.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Enforce millisecond semantics of the first argument to NetSetTimeout() --
the change is transparent for well-behaving boards (CFG_HZ == 1000 and
get_timer() countiing in milliseconds).

Rationale for this patch is to enable millisecond granularity for
network-related timeouts, which is needed for the upcoming automatic
software update feature.

Summary of changes:
- do not scale the first argument to NetSetTimeout() by CFG_HZ
- change timeout values used in the networking code to milliseconds
Signed-off-by: NRafal Czubak <rcz@semihalf.com>
Signed-off-by: NBartlomiej Sieka <tur@semihalf.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

Signed-off-by: NWolfgang Denk <wd@denx.de>

Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Signed-off-by: NWolfgang Denk <wd@denx.de>

U-boot can complain a lot about 'checksum bad' when it is attached to the network.
It is annoying for ordinary users who start to doubt the network connection
in general when they see messages like this.

This is caused by the routine NetCksumOk() which cannot handle IP-headers longer
than 20 bytes. Those packages can be ignored anyway by U-boot, so we trash them
now before checking the checksum.
Signed-off-by: NRemy Bohmer <linux@bohmer.net>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).

Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.
Signed-off-by: NWolfgang Denk <wd@denx.de>

Currently the timeout waiting for an ARP reply is hard set to 5 seconds.
On i.MX31ADS due to a hardware "strangeness" up to four first IP packets
to the boards get lost, which typically are ARP replies. By configuring
the timeout to a lower value we significantly improve the first network
transfer time on this board. The timeout is specified in milliseconds,
later internally it is converted to deciseconds, because it has to be
converted to hardware ticks, and CFG_HZ ranges from 900 to 27000000 on
different boards.
Signed-off-by: NGuennadi Liakhovetski <lg@denx.de>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

When CONFIG_NET_DO_NOT_TRY_ANOTHER is defined U-Boot's
networking stack does not automatically switch to
another interface. This patch does not touch the default
behavior.
Signed-off-by: NMatthias Fuchs <matthias.fuchs@esd-electronics.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

The purpose of this routine is receiving a single network frame, outside of
U-Boot's NetLoop(). Exporting it to standalone programs that run on top of
U-Boot will let them utilise networking facilities. For sending a raw frame
the already existing eth_send() can be used.

The direct consumer of this routine is the newly introduced API layer for
external applications (enabled with CONFIG_API).
Signed-off-by: NRafal Jaworowski <raj@semihalf.com>
Signed-off-by: NPiotr Kruszynski <ppk@semihalf.com>
Signed-off-by: NBen Warren <biggerbadderben@gmail.com>

Signed-off-by: NWolfgang Denk <wd@denx.de>

Implemented IETF RFC2090, Multicast TFTP.  Initial implementation
on Realtek RTL8139 and Freescale TSEC.
Signed-off-by: NDavid Updegraff <dave@cray.com>
Signed-off-by: NBen Warren <bwarren@qstreams.com>

Fixed some broken instances of "#ifdef CMD_CFG_IDE" too.
Those always evaluated TRUE, and thus were always compiled
even when IDE really wasn't defined/wanted.
Signed-off-by: NJon Loeliger <jdl@freescale.com>

All of the choices for CONFIG_BOOTP_ are now documented in
the README file.  You must now individually select exactly
the set that you want using a series of
    #define CONFIG_BOOTP_<x>
statements in the board port config files now.
Signed-off-by: NJon Loeliger <jdl@freescale.com>

Signed-off-by: NJon Loeliger <jdl@freescale.com>

This is a compatibility step that allows both the older form
and the new form to co-exist for a while until the older can
be removed entirely.

All transformations are of the form:
Before:
    #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT)
After:
    #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT) || defined(CONFIG_CMD_AUTOSCRIPT)
Signed-off-by: NJon Loeliger <jdl@freescale.com>

Add ICMP_ECHO_REQUEST packet support by responding with a ICMP_ECHO_REPLY.

This permits the ping command to test the phy interface when the phy
is put in loopback mode (typically by setting register 0 bit 14).

It also allows the port to respond to an external ping when u-boot is
processing some other net command (such as tftp).  This is useful when
tftp appears to hang.
Signed-off-by: NEd Swarthout <Ed.Swarthout@freescale.com>
Signed-off-by: NBen Warren <bwarren@qstreams.com>