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Commit Graph

311 Commits

Author SHA1 Message Date
Michael Brown
6858b14a34 Add pkb_available() 2006-07-19 18:16:48 +00:00
Michael Brown
6d9d48537e Added some debug messages and DHCP test code 2006-07-19 17:49:31 +00:00
Michael Brown
317b962b65 Proof of concept: transmit a single DHCPDISCOVER and dump out any
parsed DHCP responses.
2006-07-19 17:32:13 +00:00
Michael Brown
76070cd226 Added missing prototype 2006-07-19 17:29:18 +00:00
Michael Brown
bf0cdd42cf Add some DHCP options that we are likely to use 2006-07-19 17:00:32 +00:00
Michael Brown
e0668ad8df Correct typo 2006-07-19 16:58:44 +00:00
Nikhil Chandru Rao
ab577e1a3a The following edits were made: \
1. Updated UDP send data code\
2. Corrected internet checksum\
3. Moved udp_buffer() and udp_buflen() to udp.c from udp.h
2006-07-19 16:25:23 +00:00
Michael Brown
b8d619e822 Added macros for generating static DHCP options 2006-07-19 16:16:51 +00:00
Michael Brown
254fe6e00e Split DHCP packet creation into two parts: creating the basic packet
structure, and populating it with options.  This should allow us to
use the same basic options list for both DHCPDISCOVER and DHCPREQUEST,
plus making it much easier to set the non-constant parameters
(e.g. requested IP address) in request packets.
2006-07-19 12:12:45 +00:00
Michael Brown
e40ebb67de Allow for calling find_dhcp_option() with "options" set to NULL, in order
to search through all registered option blocks.

Move some static inlines that are likely to be used frequently into
dhcpopts.c as normal functions, to save space.
2006-07-19 11:05:38 +00:00
Michael Brown
6c01d3bb95 Fix creation of the htype field; the ll_proto field from which it is
derived is a 16-bit big-endian field, but htype is only 8 bits wide.
2006-07-17 13:07:14 +00:00
Michael Brown
b24947f0c0 Add sketch code to reassemble a DHCP packet from our internal "everything
is a DHCP option" data structures.

We need this code in order to be able to return a DHCP packet to a PXE NBP
which reflects options from our multiple sources (e.g. NVS and DHCP
server).  This is expensive, but necessary.  Having paid this cost, we may
as well try to use the same code to generate our DHCP request packets,
since the process is similar.
2006-07-17 12:47:22 +00:00
Michael Brown
12da7ea475 Add (untested) code for parsing a received DHCP packet and constructing a
DHCP options block from the contents.
2006-07-15 19:24:55 +00:00
Michael Brown
19e8b41562 Add code to modify DHCP option values within a block. 2006-07-13 20:49:04 +00:00
Nikhil Chandru Rao
5f651f8622 Added fragment reassembly code 2006-06-30 08:52:03 +00:00
Nikhil Chandru Rao
8de630c62b Removing net/interface.c and include/gpxe/interface.h 2006-06-29 06:51:11 +00:00
Michael Brown
51d62d1a3c Provide a mechanism for returning the encapsulator as well as the
encapsulated option; this will be needed for modifications to the options
block.
2006-06-28 18:59:54 +00:00
Nikhil Chandru Rao
c9ea710930 Renamed net/interface.c and include/gpxe/interface.h to net/tcpip_if.c and include/gpxe/tcpip_if.h respectively. Made changes in the other files. 2006-06-28 15:43:08 +00:00
Michael Brown
291f072b82 Add priority mechanism 2006-06-28 13:48:02 +00:00
Dan Lynch
d8b51332c6 typo in macro fixed 2006-06-28 11:53:41 +00:00
Nikhil Chandru Rao
6e2c97b0c0 Added ipv4_pseudo_header structure 2006-06-28 09:59:27 +00:00
Nikhil Chandru Rao
e60817fa7a IP6 specifications 2006-06-28 09:44:41 +00:00
Nikhil Chandru Rao
a6c6b3d739 Fixed whitespaces; updated UDP code 2006-06-28 07:46:28 +00:00
Michael Brown
0bcaa8a21f First stab at DHCP option handling in a way that will allow us to have
multiple option sources (e.g. multiple DHCP replies, non-volatile
storage etc.)
2006-06-27 17:24:07 +00:00
Dan Lynch
e442447f37 - multiple static inline definitions added
- changes made to some constants and macros
- changes made to _curses_screen struct
- identified and removed prototypes for yet more unsupportable functions
2006-06-27 10:38:57 +00:00
Nikhil Chandru Rao
f5ebf067c4 added generalized sockaddr structure and ip6 sockaddr 2006-06-25 05:18:24 +00:00
Nikhil Chandru Rao
90fbff8f34 added support for processing and transmitting without uIP 2006-06-25 05:16:54 +00:00
Nikhil Chandru Rao
74339b3c6e updated UDP interface 2006-06-25 05:13:17 +00:00
Nikhil Chandru Rao
fdc05e2664 created interface for transport-network interface 2006-06-25 05:12:07 +00:00
Michael Brown
3a660f9b25 Update ftp.c and hello.c to use the generic async_operations API. 2006-06-19 15:46:58 +00:00
Michael Brown
15397db2b4 Placeholder 2006-06-17 23:34:48 +00:00
Michael Brown
8637834031 Made the temporary buffer part of the TCP senddata() API, to ease the
transition away from uIP.

Prepared ipv4.c for transition away from uIP.
2006-06-17 23:20:54 +00:00
Michael Brown
3c8aafa209 Simplify RX data path.
Kill off the static single net device and move to proper dynamic
registration (which we need with the new device model).

Break the (flawed) assumption that all network-layer protocols can use
ARP; such network-layer protocols (i.e. IPv4) must now register as an ARP
protocol using ARP_NET_PROTOCOL() and provide a single method for checking
the existence of a local network-layer address.
2006-06-17 22:36:27 +00:00
Michael Brown
bbd9e28061 Simplify TX datapath. 2006-06-16 00:19:46 +00:00
Michael Brown
cce2e47ff4 Added iSCSI boot test code 2006-06-14 17:00:25 +00:00
Michael Brown
3b51c719d3 Generalise three-wire interface to generic SPI interface.
Update rtl8139 driver to instantiate an SPI interface with a three-wire
device attached.
2006-06-14 00:22:50 +00:00
Michael Brown
ab4f96e525 Move per-transition delays from generic bit-bashing layer to i2c layer
(since SPI bit-bashing will require different delay semantics).
2006-06-14 00:20:35 +00:00
Michael Brown
51a36f1cfb Change read_bit() to return 0 or -1UL, rather than 0 or 1. 2006-06-12 19:29:50 +00:00
Michael Brown
3ed40686c9 Added bit-bashing i2c interface code 2006-06-11 00:57:00 +00:00
Michael Brown
e90b64d625 Added sketch of bit-bashing interface common code 2006-06-08 19:47:09 +00:00
Michael Brown
286bf68faf Added a very quick and dirty compatibility layer, to allow
not-yet-updated drivers to at least function.
2006-06-05 15:45:21 +00:00
Michael Brown
d78581297b Improve tcpdump legibility. 2006-06-01 19:23:52 +00:00
Michael Brown
48fb6c6dc2 Updated retry timer mechanism to incorporate smoothed RTT estimation.
AoE now uses the retry timer mechanism.
2006-06-01 14:33:52 +00:00
Michael Brown
50415b3aca Make DBG_DISCARD correct 2006-06-01 12:11:09 +00:00
Michael Brown
1f394c2f7c Backing out last change; no immediate plans to make the whole block-device
layer asynchronous, so keeping the sync/async boundary within aoedev.c
seems cleanest for now.
2006-06-01 11:14:59 +00:00
Michael Brown
99ef98d0bf ATA devices are now asynchronous. The ATA layer itself now performs the
async_wait(), though we may wish to move this higher up the stack, and
consider making the block device model asynchronous.  (There is only a
marginal cost for synchronous devices, since they can simply call
async_done() before returning; async_wait() will work seamlessly in this
situation).
2006-05-31 18:57:11 +00:00
Michael Brown
68125bc441 Added generic asynchronous operations code.
Removed data_in_len and data_out_len from ata_command structure; the
lengths are implied by the sector count and the presence of the data_in
or data_out pointers.

Changed AoE code to use subcommands by default, and made aoe_issue()
nonblocking (with completion via async_wait()).
2006-05-31 14:34:17 +00:00
Michael Brown
1db1a6dad3 Added first sketch of a generic retry timer mechanism. The idea is to use
these timer objects in AoE and UDP protocols (where there is no underlying
retransmission mechanism) without requiring each protocol to implement its
own individual retry logic.  Eventually, we should be able to use the same
timer code for TCP retransmissions as well.
2006-05-29 14:55:07 +00:00
Michael Brown
6541338897 Handle multi-sector reads by splitting them into subcommands. 2006-05-29 08:25:31 +00:00
Michael Brown
9a2a52693d Initial AoE implementation. Limitations are:
Cannot yet handle reads of more than two sectors

  No retransmission

  No way to find out a target's MAC address (this proof of concept uses
  broadcasts)

These limitations shall not last long!  :)
2006-05-28 23:29:43 +00:00