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Code based on networking/zcip.c in busybox
commit 8531d76a15890c2c535908ce888b2e2aed35b172
Signed-off-by: Joe Hershberger <[email protected]>
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Link-local support will need to send ARP packets, but needs more
fine-grained control over the contents. Split the implementation
into 2 parts so link-local can share the code.
Signed-off-by: Joe Hershberger <[email protected]>
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Use the NetArpTxPacket for the ARP packet, not to hold what used to
be in NetTxPacket.
This saves a copy and makes the code easier to understand.
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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A new non-static function net_init() will initialize buffers and
read from the environment. Only update from the env on each entry
to NetLoop().
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Noone uses it.
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Don't force ARP clients to return the MAC address if they don't care
(such as ping)
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
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This is useful if you want to look for a DHCP server, but try some
other settings if not available.
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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If CONFIG_BOOTP_SERVERIP is not defined, unused variable warning is
reported. This was fixed upstream using a compiler feature instead
of a simple reorder of the statements.
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
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When the network is VLAN or SNAP, net_update_ether() will preserve
the original Ethernet packet header and simply replace the src and
dest MACs and the protocol
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Call a built-in dummy if none is registered... don't require
protocols to register a handler (eliminating dummies)
NetConsole now uses the ARP handler when waiting on arp
(instead of needing a #define hack in arp.c)
Clear handlers at the end of net loop
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Changes to NetState now go through an accessor function called
net_set_state()
Signed-off-by: Joe Hershberger <[email protected]>
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Use this entry-point consistently across the net/ code
Use a static inline function to preserve code size
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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There is no need to call through the handler... inline it
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
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Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Eliminate pointer subtraction that recovers values computed earlier
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Save the length when it is computed instead of forgetting it and
subtracting pointers to figure it out again.
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
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Share more of the code that is common between ARP vs not.
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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ICMP (ping) was reimplementing IP header code... it now shares code.
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
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Use field names and sizes when accessing ARP packets
Signed-off-by: Joe Hershberger <[email protected]>
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Renamed for clarity
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Easier to find when alphabetized
Signed-off-by: Joe Hershberger <[email protected]>
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Clearer constant name.
Also remove related BOOTP_SIZE which was unused and doesn't take
into account VLAN packets.
Signed-off-by: Joe Hershberger <[email protected]>
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This is not called as a handler, so don't name it that way
Signed-off-by: Joe Hershberger <[email protected]>
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x is a poor variable name
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Make the comment more accurate about the header including SNAP
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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This name more explicitly claims that it does not include the
header size
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Remove typedef and lower-case name
Signed-off-by: Joe Hershberger <[email protected]>
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Remove typedef and lower-case letters
Signed-off-by: Joe Hershberger <[email protected]>
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Eliminate the typedef and remove capital letters
Signed-off-by: Joe Hershberger <[email protected]>
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Separate the Ethernet header from the 802 header.
Base the size constants on the structs.
Signed-off-by: Joe Hershberger <[email protected]>
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Add a structure that only contains IP header fields to be used by
functions that don't need UDP
Rename IP_HDR_SIZE_NO_UDP to IP_HDR_SIZE
Signed-off-by: Joe Hershberger <[email protected]>
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Rename IP header related things to IP_UDP. The existing definition
of IP_t includes UDP header, so name it to accurately describe the
structure.
Signed-off-by: Joe Hershberger <[email protected]>
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Separate this functionality out of the net.c behemoth
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
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Separate this functionality out of the net.c behemoth
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Separate this functionality out of the net.c behemoth
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
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Checking for CDP packets should be encapsulated, not copied code.
Signed-off-by: Joe Hershberger <[email protected]>
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Separate this functionality out of the net.c behemoth
Signed-off-by: Joe Hershberger <[email protected]>
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Make the MAC-seeded random number generator available to /net in
general. MAC-seeded rand will be needed by link-local as well, so
give it an interface.
Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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All arches init this the same way, so move the logic into the core
net code to avoid duplicating it everywhere else.
Signed-off-by: Mike Frysinger <[email protected]>
Reviewed-by: Joe Hershberger <[email protected]>
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This field gets read in one place (by "bdinfo"), and we can replace
that with getenv("ipaddr"). After all, the bi_ip_addr field is kept
up-to-date implicitly with the value of the ipaddr env var.
Signed-off-by: Mike Frysinger <[email protected]>
Reviewed-by: Joe Hershberger <[email protected]>
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Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Signed-off-by: Joe Hershberger <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Ignore the return value of eth_getenv_enetaddr_by_index(), and if it
fails, fall back to use dev->enetaddr, which could be filled up by
the ethernet device driver:
With the current code, introduced with below commit, eth_write_hwaddr()
will fail immediately if there is no eth<n>addr in the environment variables.
However, e.g. for an overo based product that uses the SMSC911x ethernet
chip (with the MAC address set via EEPROM connected to the SMSC911x chip),
the MAC address is still OK.
On mx28 boards that are depending on the OCOTP bits to set the MAC address
(like the Denx m28 board), the OCOTP bits should be used instead of
failing on the environment variables.
Actually, this was the original behavior, and was later changed by
commit 7616e7850804c7c69e0a22c179dfcba9e8f3f587.
Signed-off-by: Eric Miao <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Dirk Behme <[email protected]>
CC: Stefan Roese <[email protected]>
CC: Eric Miao <[email protected]>
CC: Wolfgang Denk <[email protected]>
CC: Philip Balister <[email protected]>
CC: Zach Sadecki <[email protected]>
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This inserts bootstage calls into tftp, usb start and bootm. We
could go further, but this is a reasonable start to illustrate
the concept.
Signed-off-by: Simon Glass <[email protected]>
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