Michael Brown
bac97eb979
Change semantics of network API so that packet-absorbing calls *always*
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take ownership of the packet, rather than doing so only if they return
success. This breaks semantic compatibility with Linux's
hard_start_xmit() method, but means that we don't have to worry so much
about error cases.
Split mechanism of processing received packets (net_rx_process()) out
from policy (net_step()), preparatory to putting net_step() in a separate
object.
2006-04-29 17:17:43 +00:00
Michael Brown
23c494d14e
Added basic code for implementing co-operative multitasking.
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Yes, you really can do it in 65 bytes.
2006-04-29 16:42:09 +00:00
Michael Brown
129c6c3968
Network layer now works as a proof of concept
2006-04-28 14:13:50 +00:00
Michael Brown
1488cd3b73
Fix a couple of broken assertions, and align the buffer correctly.
2006-04-28 14:09:31 +00:00
Michael Brown
d8e99bf28f
Gave up on adding POSIX errno's as required, and just added (almost) all
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of them in one go.
EBADIMG has been replaced by ENOEXEC, and EIMGRET by ECANCELED.
2006-04-28 13:44:34 +00:00
Michael Brown
cf3783b4ca
Actually, it's probably a good idea to have packet buffers avoid 4kB
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crossings.
2006-04-25 12:11:36 +00:00
Michael Brown
b601a7d355
Updated memory allocator to improve support for unaligned or partially
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aligned blocks.
Moved header to include/malloc.h, since we now also provide the
POSIX-like malloc()/free() pair.
Not yet tested.
2006-04-25 03:30:46 +00:00
Michael Brown
2f0d412210
Add __constant_flsl(), because it's useful for finding out the next
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power-of-two up from a given constant via
( 1 << fls ( constant - 1 ) )
fls(), flsl(), ffs() and ffsl() appear in strings.h according to
POSIX.
2006-04-24 23:00:32 +00:00
Michael Brown
455b76980f
Added pkb_reserve().
2006-04-24 19:34:51 +00:00
Michael Brown
832e86246b
gcc is rather over-aggressive about optimising out static data structures
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even when __atribute__ (( unused )) is correctly set...
2006-04-24 18:31:37 +00:00
Michael Brown
824d6ffa7f
Header rearrangement.
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I want to get to the point where any header in include/ reflects a
standard user-level header (e.g. a POSIX header), while everything that's
specific to gPXE lives in include/gpxe/. Headers that reflect a Linux
header (e.g. if_ether.h) should also be in include/gpxe/, with the same
name as the Linux header and, preferably, the same names used for the
definitions.
2006-04-24 15:42:49 +00:00
Michael Brown
53f78346bf
Network API now allows for multiple network devices (although the
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implementation allows for only one, and does so without compromising on
the efficiency of static allocation).
Link-layer protocols are cleanly separated from the device drivers.
Network-layer protocols are cleanly separated from individual network
devices.
Link-layer and network-layer protocols are cleanly separated from each
other.
2006-04-24 15:38:53 +00:00
Michael Brown
fdc2ee79db
Network API now allows for multiple network devices (although the
...
implementation allows for only one, and does so without compromising on
the efficiency of static allocation).
Link-layer protocols are cleanly separated from the device drivers.
Network-layer protocols are cleanly separated from individual network
devices.
Link-layer and network-layer protocols are cleanly separated from each
other.
2006-04-24 15:33:06 +00:00
Michael Brown
5423f876fb
Don't bother poisoning lists; it costs code size.
2006-04-24 15:28:56 +00:00
Michael Brown
1d7cfd5acf
Prototype now clashes with the macro in arch/i386.
2006-04-24 15:27:58 +00:00
Michael Brown
b6b6a0b5fe
First draft of a dynamic memory allocator
2006-04-24 15:21:18 +00:00
Michael Brown
6209bd873a
First sketch of a new net device API.
2006-04-19 12:07:46 +00:00
Michael Brown
bdc8190c8d
Remove the concept of the media-independent link-layer header and replace
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it with metadata in the pkb structure. This is required since UNDI will
want to be able to parse the link-layer header without destroying it.
2006-04-19 11:32:24 +00:00
Michael Brown
3ca7dbe7ca
Added the concept of a network interface (a network-layer concept) as
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separate from a network device (a link-layer concept).
2006-04-19 02:09:08 +00:00
Michael Brown
d65a66606b
Typo
2006-04-19 02:08:27 +00:00
Michael Brown
2558439ce4
First version, based on include/linux/list.h, stripped down to just
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those functions we are likely to need.
Still need to come up with a way of getting the linker to create
static lists using this linking mechanism.
2006-04-19 02:05:50 +00:00
Michael Brown
d24042f0bb
Update now that if_ether.h has moved.
2006-04-19 01:56:10 +00:00
Michael Brown
4f3581e99c
Added ENOENT and EAFNOSUPPORT
2006-04-19 01:54:53 +00:00
Michael Brown
ab139ceda9
Added pkb_unput() and pkb_len().
2006-04-19 01:54:24 +00:00
Michael Brown
744b895077
Make flags more efficient.
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Add 'raw' net_addr facility (needed for ARP).
2006-04-19 01:53:49 +00:00
Michael Brown
49f933fbc3
Moved if_ether.h and if_arp.h to include/gpxe, for consistency with Linux
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kernel.
Removed obsolete struct arprequest from if_arp.h and put it in nic.c so
that nic.c will still compile. ARP will very shortly be handled by
net/arp.c instead.
2006-04-19 01:52:41 +00:00
Michael Brown
363905e1b6
Add missing prototype
2006-04-19 01:42:33 +00:00
Michael Brown
02d342f38f
First version
2006-04-19 01:42:03 +00:00
Michael Brown
0b561ce972
First sketch
2006-04-18 17:52:51 +00:00
Michael Brown
42b659f926
First version
2006-04-18 17:49:51 +00:00
Michael Brown
0864a73347
First version, based on the concepts in linux/skbuff.h
2006-04-18 17:47:01 +00:00
Michael Brown
6446767258
First draft of iSCSI protocol support. Is capable of retrieving disk
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blocks.
2006-04-05 11:44:56 +00:00
Michael Brown
c8a7133e9f
Added tcp_buffer, to give applications a zero-cost place to build data to
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be transmitted.
2006-04-05 11:43:01 +00:00
Michael Brown
988bb50979
Added set_netmask() and set_gateway()
2006-04-05 11:41:15 +00:00
Michael Brown
b44332eb7d
Split non-TCP portions of the stack out into ip.[ch].
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Added set_ipaddr().
2006-03-24 17:22:09 +00:00
Michael Brown
7e61f38799
Moved "hello world" protocol implementation out of prototester.c and into
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the first standalong uIP-based protocol module.
2006-03-23 22:37:05 +00:00
Michael Brown
508dcdb303
Added container_of(). This seems about the best place to put it, since
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the definition of it uses offsetof(), and the two concepts are related.
2006-03-23 22:07:21 +00:00
Michael Brown
2299435f1c
Added prototype for inet_ntoa, even though we don't have the function
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yet, in order to allow prototester.c to compile. It might be worth
changing all the uses of "%@" in printf to use "%s" and inet_ntoa
instead, in order to improve the portability of our code.
2006-03-23 21:34:25 +00:00
Michael Brown
a4a0244aa3
Moved uIP wrapper out of prototester.c and into proto/tcp.c.
2006-03-23 21:32:03 +00:00
Michael Brown
05b284399e
Moved old tcp.h to old_tcp.h, to avoid name clash with new (uIP-based)
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tcp.h.
2006-03-23 20:34:08 +00:00
Michael Brown
af23ff8a24
Assertions are now handled via the POSIX-like <assert.h>.
2006-03-23 19:33:57 +00:00
Michael Brown
55497b3402
Added missing #endif
2006-03-23 19:23:25 +00:00
Michael Brown
cb8e89de15
Added assert.h, with assert() defined (almost) as per POSIX, and
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linker_assert() defined as gPXE-specific.
2006-03-23 17:28:51 +00:00
Michael Brown
dde1c5ad18
Moved include/in.h to include/gpxe/in.h, so that it can be included by
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prototester.
2006-03-23 16:45:01 +00:00
Michael Brown
708bbc43bc
Merge from Etherboot 5.4
2006-03-16 17:40:55 +00:00
Michael Brown
9c8a69b673
Merge from Etherboot 5.4
2006-03-16 17:31:29 +00:00
Michael Brown
5d28bae0f1
Fix up building with gcc 4.0.1 / gas 2.16.91
2006-01-17 01:47:41 +00:00
Michael Brown
33dbdda28e
Allow data blocks to be less than sizeof ( struct buffer_free_block ) in
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size. (The restriction on the size of free blocks remains.)
2005-06-06 11:42:14 +00:00
Michael Brown
7d8adc25bc
In multicast operation, the client still has a unicast local port.
2005-06-02 10:15:40 +00:00
Michael Brown
be7897523d
IGMP protocol now uses the generic background protocol mechanism.
2005-06-01 22:22:14 +00:00
