dns: use global nameserver/domainname ...

nameserver and domainname are now globally available in the 'net' device.
use these variables.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dhcp: set global nameserver/domainname ...

The nameserver and domainname are now globally available using
the 'net' device. Use it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: register a 'net' device to store network specific variables ...

'nameserver' and 'domainname' should be globally available variables
specific to networking. Register a 'net' device to store these variables.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: use static string in string_to_ip ...

Simplify usage of ip_to_string by using a static string.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net dns: remove debug code ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

netconsole: bail out if console_register fails ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: dhcp: add private extention 224 to pass the oftree file via dhcp. ...

DHCP option 224 to 254 are for private use, so use one.

Export it via env dhcp_oftree_file.

E.g. the ISC dhcp server can be configured with

   | option oftree-path code 224 = string
   | class "at91sam9x5ek" {
   | match if substring (option vendor-class-identifier,0,20) = "barebox-at91sam9x5ek";
   |
   | filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage";
   | option tftp-server-name "192.168.200.98";
   | option root-path "192.168.200.98:/opt/work/buildroot/build/sam9x5/target";
   | option oftree-path "/tftpboot/atmel/at91sam9x5/sam9x5ek/sam9g25ek/dtb";
   | }

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: eth: don't say that MAC comes from EEPROM ...

Because it can also come in via other means.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: ping: do not retry endlessly ...

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: tftp: do not retry endlessly ...

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: arp_request: do not retry endlessly ...

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: tftp: check for error when retrying ...

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: ping: remove unneeded initialization ...

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: ping: send PING packets with 1-second interval ...

Like standard ping does by default.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: env: getenv_ip use resolv ...

Introduce getenv_ip_dns to be able to do not do the resolv when using it in
resolv for the nameserver (Do not loop).

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

net: dhcp: allow to set transmitted user class ...

For net boot setups it is useful to submit boot params like server or
bootfile over dhcp. To distinguish diffrent type of OS running on the same hardware,
a custom vendor id can be sent in dhcp discover/request messages.

E.g. the ISC dhcp server can be configured with

 | option client-uuid code 97 = { unsigned integer 8, string };
 | class "at91sam9x5ek" {
 |         match if substring (option vendor-class-identifier,0,20) = "barebox-at91sam9x5ek";
 |
 |         filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage";
 |         if substring (option dhcp-client-identifier,0,7) = "ser2net" {
 |                 filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage-ser2net";
 |         }
 |         if substring (option client-uuid,0,7) = "test" {
 |                 filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage-ser2net";
 |         }
 |         if substring (option user-class,0,4) = "toto" {
 |                 filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage-toto";
 |         }
 |         option tftp-server-name "192.168.200.98";
 |         option option-150 192.168.200.98;
 |         next-server 192.168.200.98;
 |         option root-path "192.168.200.98:/opt/work/buildroot/build/sam9x5/target";
 | }

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

net: dhcp: allow to set transmitted client uuid ...

For net boot setups it is useful to submit boot params like server or
bootfile over dhcp. To distinguish diffrent type of OS running on the same hardware,
a custom client uuid can be sent in dhcp discover/request messages.

E.g. the ISC dhcp server can be configured with

 | option client-uuid code 97 = { unsigned integer 8, string };
 | class "at91sam9x5ek" {
 |         match if substring (option vendor-class-identifier,0,20) = "barebox-at91sam9x5ek";
 |
 |         filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage";
 |         if substring (option dhcp-client-identifier,0,7) = "ser2net" {
 |                 filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage-ser2net";
 |         }
 |         if substring (option client-uuid,0,7) = "test" {
 |                 filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage-ser2net";
 |         }
 |         option tftp-server-name "192.168.200.98";
 |         option option-150 192.168.200.98;
 |         next-server 192.168.200.98;
 |         option root-path "192.168.200.98:/opt/work/buildroot/build/sam9x5/target";
 | }

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

net: dhcp: allow to set transmitted client id ...

For net boot setups it is useful to submit boot params like server or
bootfile over dhcp. To distinguish diffrent type of OS running on the same hardware,
a custom client id can be sent in dhcp discover/request messages.

E.g. the ISC dhcp server can be configured with

 | class "at91sam9x5ek" {
 |         match if substring (option vendor-class-identifier,0,20) = "barebox-at91sam9x5ek";
 |
 |         filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage";
 |         if substring (option dhcp-client-identifier,0,7) = "ser2net" {
 |                 filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage-ser2net";
 |         }
 |         option tftp-server-name "192.168.200.98";
 |         option option-150 192.168.200.98;
 |         next-server 192.168.200.98;
 |         option root-path "192.168.200.98:/opt/work/buildroot/build/sam9x5/target";
 | }

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

net: dhcp: factorise setting option code ...

This will allow to add more easly new option with less impact in the binary.

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

net: dhcp: add support of tftp name server ...

if the DNS is enable resolve it. The server ip will be set if no server ip it
is set in the bootp.
Export it via env dhcp_tftp_server_name.

E.g. the ISC dhcp server can be configured with

   | class "at91sam9x5ek" {
   |         match if substring (option vendor-class-identifier,0,20) = "barebox-at91sam9x
   |
   |         filename "/tftpboot/atmel/at91sam9x5/sam9x5ek/zImage";
   |         option tftp-server-name "192.168.200.98";
   |         option root-path "192.168.200.98:/opt/work/buildroot/build/sam9x5/target";
   |         }
   | }

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

net: dhcp: reset env variable before do a dhcp request ...

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

net: dhcp: factorise option recption handling ...

Instead of using a static switch case the handle the received option
use an array of supported option.

This will allow to unset the env var without duplicating the code.

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

net: dhcp: allow to set transmitted vendor id ...

For net boot setups it is useful to submit boot params like server or
bootfile over dhcp. To distinguish barebox from e.g. pxe machines,
a custom vendor id can be sent in dhcp discover/request messages.

E.g. the ISC dhcp server can be configured with

| if substring(option vendor-class-identifier,0,8) = "barebox:" {
|       next-server             192.168.3.24;
|       server-name             "192.168.3.24";
|       option tftp-server-name "192.168.3.24";
|       option root-path = concat("/srv/sysroots/by-mac/",
|          binary-to-ascii (16, 8, "-", substring (hardware, 1, 6)));
| }

to sent boot params which are valid for barebox hosts only.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Jean-Christophe PLAGNIOL-VILLARD:
 - update the use dhcp command option
 - support to set the vendor via env dhcp_vendor_id
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: remove struct command pointer from commands ...

This is unused in all commands and thus can be removed.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: use container_of instead of dev->type_data ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: set enetaddr to invalid address when an invalid string is passed ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: fix eth device unregistration ...

We register a device in eth_register, thus we have to unregister it in
eth_unregister. Also, if the device we unregister is the current device,
we have to set the current eth_device to NULL so that it isn't used anymore.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net/nfs: increase timeout to 15 seconds ...

On my laptop with avahi enabled (linux mdns implementation), the unmount
take quite long, because the avahi daemon tries to resolve the client's
host name. This leads to a delay of about 8 seconds of the unmount reply
messages, so that barebox runs into a timeout. This patch increases the
NFS timeout to 15 to work around the problem.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

remove unused watchdog header ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dhcp: Add magicvars ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>