1838b58c3f
Add drivers/block and arch/i386/interface/pcbios
2006-05-13 11:35:29 +00:00
568cad0ddc
(Redoing check-in lost by SourceForge's failure.)
2006-05-13 11:30:03 +00:00
8a229a16f6
(Redoing check-in lost by SourceForge's failure.)
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Moved to net/
2006-05-13 11:24:25 +00:00
847f38f4ac
(Redoing check-in lost by SourceForge's failure.)
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Add method for hooking real-mode interrupt vectors.
2006-05-13 11:19:06 +00:00
f7b963da51
(Redoing check-in lost by SourceForge's failure.)
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Use .text16.data section with "aw" attributes, to avoid section type
conflicts when placing both code and data into .text16.
Add __from_{text16,data16}.
2006-05-13 11:11:55 +00:00
97d265f8dc
(Redoing check-in lost by SourceForge's failure.)
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Avoid optimisation errors under -fstrict-aliasing.
2006-05-13 11:10:24 +00:00
fdb983d473
Preserve the whole of %esp across prot_call(). We have to split this
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between the low half stored in the static variable rm_sp, and the high
half stored on the prot_call() stack, because:
Just using the stack would screw up when a prot_call()ed routine
executes a real_call(); it would have no way to find the current top of
the RM stack.
Extending rm_sp to rm_esp would not be safe, because the guarantee that
rm_sp must return to the correct value by the time an external
real-mode call returns applies only to %sp, not to %esp.
2006-05-06 19:44:23 +00:00
f8e087767b
Allow access to variables in .text16 as well as .data16. Chained
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interrupt vectors, for example, will be easiest to handle if placed in
.text16.
2006-05-06 18:57:31 +00:00
c10d1aa9d7
Preserve GDT across prot_call().
2006-05-06 18:52:27 +00:00
dcc1b0054e
This line should not have been checked in
2006-05-04 23:22:42 +00:00
832807726a
Add infrastructure to support access to .data16 (and .text16) variables
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from protected-mode code.
Set up %ds to point to .data16 in prot_to_real, so that code specified
via REAL_EXEC() and friends can access variables in .data16.
Move most real-mode librm variables from .text16 to .data16.
2006-05-04 23:14:06 +00:00
f4429533a6
Added methods for efficiently declaring and accessing variables in
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.data16. librm will need to supply "char *data16", i.e. the virtual
address of the start of .data16.
2006-05-04 17:00:20 +00:00
f8f75cef5b
BSS is now zeroed by libprefix (along with the otherwise non-zeroable
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portions such as the stack) during the installation process.
init_fns() are called from main(). We need to think about initial
control flow some more.
2006-05-02 21:10:45 +00:00
cc23057b59
Typo
2006-05-02 21:09:29 +00:00
10c28a51bd
Create two easy-to-use entry points in libprefix: install and
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install_prealloc. I *think* these will suffice for all the 16-bit
prefixes.
2006-05-02 20:51:07 +00:00
9e1dd6402d
<name>_size variable is no longer needed, since we don't copy the code.
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However, it's worth adding a .size directive so that objdump reports the
correct sizes for the code fragments.
2006-05-02 16:38:46 +00:00
9fcded3d23
Towards a(nother) new real-mode infrastructure, in which we take
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advantage of the fact that we have to have a permanently-resident block
in base memory.
2006-05-02 15:41:21 +00:00
8f62b39c03
Move stack out to separate object, so that having a stack doesn't drag in
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setup.S.
2006-05-02 14:57:48 +00:00
5463169c1a
Verified as working
2006-05-02 14:04:21 +00:00
d081d65d48
This should be much more elegant: we use flat real mode for the
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highmem data, so decompress16 will be able to unpack blocks bigger
than 64kB.
2006-05-01 22:35:19 +00:00
cc8821a443
Checking in because I don't want to lose this rather neat code for
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running the decompresser in 16:16 protected mode using the real-mode
stack. However, there's an even simpler way to do it...
2006-05-01 21:26:44 +00:00
2462047128
Typo
2006-04-30 18:19:39 +00:00
9e1becaf8a
Merge TCP aborted(), timedout() and closed() methods into a single
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closed() method with a reason code.
2006-04-30 16:59:45 +00:00
8afb6303fb
Half-way tidy
2006-04-30 15:23:29 +00:00
04b6a1e004
Make all TCP methods optional; at least FTP data is a read-only
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connection and so legitimately ignores acked() and senddata().
2006-04-30 13:20:40 +00:00
aec0e127d2
Proof-of-concept FTP implementation
2006-04-30 12:02:07 +00:00
a42092d2a0
Add a temporary snprintf, so that safely-written code can at least
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compile, even if it won't yet be safe.
2006-04-30 12:01:31 +00:00
8df7e74990
Fix up prototype of strtoul() to match POSIX.
2006-04-30 11:45:38 +00:00
01bd78d62a
Created net/tcp and moved hello.c there
2006-04-30 09:34:11 +00:00
7af478b30d
Make tcp_connect() void; it will eventually have no failure case.
2006-04-30 02:13:52 +00:00
9c9208a132
Put the TCP connection periodic processing in tcp.c, where it belongs.
2006-04-30 02:08:42 +00:00
178b0a7e5e
Consistency
2006-04-30 01:35:01 +00:00
592a5a99c8
Moved uIP and tcp.c from proto/ to net/
2006-04-30 01:16:37 +00:00
352bf1bda2
Move init.h to gpxe/init.h.
2006-04-30 01:08:52 +00:00
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
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
5fe31f1014
Give uIP a static IP address for proof-of-concept testing
2006-04-28 14:15:21 +00:00
129c6c3968
Network layer now works as a proof of concept
2006-04-28 14:13:50 +00:00
1488cd3b73
Fix a couple of broken assertions, and align the buffer correctly.
2006-04-28 14:09:31 +00:00
79f64eea55
Transmit the buffer contents, not the buffer descriptor...
2006-04-28 14:08:41 +00:00
51feeab445
Add an explicit failure debug message
2006-04-28 14:07:41 +00:00
084f6b18f7
Exclude bin directory from tags generation.
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Create something that might be usable as a symbol list for bochs'
internal debugger.
2006-04-28 14:07:08 +00:00
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
cfae86f6c8
Glenn managed to shrink .text by 5 more bytes.
2006-04-25 21:48:16 +00:00
fee8b91015
D'oh
2006-04-25 12:56:18 +00:00
7a82c3eca3
Added missing ssize_t
2006-04-25 12:55:23 +00:00
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
00a1de964d
Update to use POSIX-like API.
2006-04-25 12:04:07 +00:00
face774c4c
Fixed erroneous comparison
2006-04-25 11:54:58 +00:00
95f8a42930
Removed incorrect comment; malloc() is inefficient only when the
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alignment and size are both powers of two, and there's no way to
specify an alignment through the malloc() interface anyway.
2006-04-25 10:41:49 +00:00
4e92f29c9e
Now passes trivial tests. free_memblock() needs neatening up.
2006-04-25 04:01:58 +00:00
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
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
a81f96998b
Added missing headers required for compilation in Etherboot.
2006-04-24 19:35:10 +00:00
455b76980f
Added pkb_reserve().
2006-04-24 19:34:51 +00:00
26749951dc
We have our own ARP layer now.
2006-04-24 19:19:13 +00:00
fcf765e42d
Add missing {register,free}_netdev().
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Tie into existing driver API; we'll fix that up soon.
2006-04-24 18:44:50 +00:00
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
4c4e4de18f
(librm_base-1b) is already an offset; no need to apply OFFSET().
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Doing so, in fact, seems to expose an assembler bug; (a-b-0) is
apparently not the same as (a-b). Go figure.
2006-04-24 18:29:47 +00:00
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
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
fdc2ee79db
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 15:33:06 +00:00
0d97f0d482
Obviate uip_init(); our bss is zeroed at startup already.
2006-04-24 15:31:02 +00:00
5423f876fb
Don't bother poisoning lists; it costs code size.
2006-04-24 15:28:56 +00:00
1d7cfd5acf
Prototype now clashes with the macro in arch/i386.
2006-04-24 15:27:58 +00:00
510ccb2900
Added __constant_memcpy() based on version in Linux's string.h.
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Added memswap().
2006-04-24 15:25:25 +00:00
b6b6a0b5fe
First draft of a dynamic memory allocator
2006-04-24 15:21:18 +00:00
e323d1a29b
Add "net" directory.
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Avoid including debug information in bin/%.s output, since the whole
point is to have easy-to-read assembler.
2006-04-24 15:20:01 +00:00
6209bd873a
First sketch of a new net device API.
2006-04-19 12:07:46 +00:00
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
b89ccac02d
Updated to remove obsolete constants
2006-04-19 02:11:56 +00:00
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
d65a66606b
Typo
2006-04-19 02:08:27 +00:00
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
d24042f0bb
Update now that if_ether.h has moved.
2006-04-19 01:56:10 +00:00
4f3581e99c
Added ENOENT and EAFNOSUPPORT
2006-04-19 01:54:53 +00:00
ab139ceda9
Added pkb_unput() and pkb_len().
2006-04-19 01:54:24 +00:00
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
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
9f67ad9db0
First version. ARP protocol independence in less than the size of uIP's
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Ethernet-and-IPv4-only ARP module. :)
2006-04-19 01:43:56 +00:00
363905e1b6
Add missing prototype
2006-04-19 01:42:33 +00:00
02d342f38f
First version
2006-04-19 01:42:03 +00:00
0b561ce972
First sketch
2006-04-18 17:52:51 +00:00
42b659f926
First version
2006-04-18 17:49:51 +00:00
0864a73347
First version, based on the concepts in linux/skbuff.h
2006-04-18 17:47:01 +00:00
1a60444fe4
Added netmask and gateway global options.
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Added iSCSI testing.
2006-04-05 11:46:18 +00:00
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
9ea782d339
Make pcap_inject non-static, so that its prototype doesn't conflict with
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the real pcap_inject in the case where we do have it.
2006-04-05 11:44:05 +00:00
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
988bb50979
Added set_netmask() and set_gateway()
2006-04-05 11:41:15 +00:00
ee058362fa
We don't need to know anything about ARP
2006-03-24 17:39:05 +00:00
90892d5ec7
Allow specifying the local IP address via --from.
2006-03-24 17:28:40 +00:00
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
1c607470e3
Put in a substitute pcap_inject() function, since earlier versions of
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libpcap are lacking the function. For now, we always use the
substitute version, since there's no easy way to determine whether or
not we need it.
2006-03-24 16:43:12 +00:00
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
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
99032becce
Pick up the gPXE include files when building prototester.
2006-03-23 21:35:20 +00:00
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
a4a0244aa3
Moved uIP wrapper out of prototester.c and into proto/tcp.c.
2006-03-23 21:32:03 +00:00
17c0253ca0
Add include/gpxe as a directory to scan.
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Exclude proto/uip, since uip.c and uip_arp.c both have global variables
called "c", which screws up doxygen's auto-generation of links to file
documentation when it encounters a file name such as "hello.c".
2006-03-23 21:06:36 +00:00
Michael Brown