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664 Commits

Author SHA1 Message Date
Michael Brown
4f2861a376 [image] Revert "clear LOADED flag" patch 
Clearing the LOADED flag actually prevents users from doing clever things
such as loading an image, then loading a patch image, then executing the
first image.  (image_exec() checks for IMAGE_LOADED, so this sequence of
operations will fail if the LOADED flag gets cleared.)

This reverts commit 14c080020f.
 2008-07-08 03:15:02 +01:00
Michael Brown
14c080020f [image] Clear LOADED flag on all other images when loading a new image 
Loading an image may overwrite part or all of any previously-loaded
images, so we should clear the LOADED flag for all images prior to
attempting to load a new image.
 2008-07-08 03:03:48 +01:00
Stefan Hajnoczi
e9e1da131a [GDB] Provide functions to manually enter GDB stub. 2008-06-30 19:19:48 +01:00
Stefan Hajnoczi
7eb555a8ae [GDB] Obey flow control when GDB connects. 2008-06-30 19:19:48 +01:00
Stefan Hajnoczi
578b056730 [GDB] UDP clean up and add netdev refcnt 2008-06-30 19:19:48 +01:00
Stefan Hajnoczi
19386ec2c8 [GDB] Add watch and rwatch hardware watchpoints 2008-06-30 19:19:48 +01:00
Stefan Hajnoczi
6e670b5f38 [GDB] Remote debugging over UDP 
This commit implements GDB over UDP.  Using UDP is more complex than
serial and has required some restructuring.

The GDB stub is now built using one or both of GDBSERIAL and GDBUDP
config.h options.

To enter the debugger, execute the gPXE shell command:
gdbstub <transport> [<options>...]

Where <transport> is "serial" or "udp".  For "udp", the name of a
configured network device is required:
gdbstub udp net0

The GDB stub listens on UDP port 43770 by default.
 2008-06-30 19:19:48 +01:00
Stefan Hajnoczi
9ec3ff95f0 [GDB] Atomic read/write for device memory 2008-06-30 19:19:48 +01:00
Stefan Hajnoczi
59b5465b30 [GDB] Handle kill and detach packets. 
This commit also includes a test to ensure that single stepping works,
since continue, kill, detach, and single step all share code.
 2008-06-30 19:19:48 +01:00
Michael Brown
50810955e9 [console] Call cpu_nap() only if there is no input waiting 
Avoid calling cpu_nap() until after we have determined that there is
no input ready to read.  This avoids delaying for one timer interrupt
(~50ms) in the case of

  if ( iskey() )
     char = getkey()

which happens to be present in monojob.c, which is where we spend most
of our time looping (e.g. during any download).

This should eliminate the irritating tendency of gPXE to lose
keypresses.

Discovered on a Dell system where the serial port seems to send in a
constant stream of 0xff characters; this wouldn't be a problem in
itself except that each one triggers the 50ms delay (as mentioned
above), which really kills performance.
 2008-06-11 12:06:10 +01:00
Michael Brown
77a5cc6b13 [ELF] Add ability to boot ELF images generated by wraplinux and mkelfImage 
Delete ELF as a generic image type.  The method for invoking an
ELF-based image (as well as any tables that must be set up to allow it
to boot) will always depend on the specific architecture.  core/elf.c
now only provides the elf_load() function, to avoid duplicating
functionality between ELF-based image types.

Add arch/i386/image/elfboot.c, to handle the generic case of 32-bit
x86 ELF images.  We don't currently set up any multiboot tables, ELF
notes, etc.  This seems to be sufficient for loading kernels generated
using both wraplinux and coreboot's mkelfImage.

Note that while Etherboot 5.4 allowed ELF images to return, we don't.
There is no callback mechanism for the loaded image to shut down gPXE,
which means that we have to shut down before invoking the image.  This
means that we lose device state, protection against being trampled on,
etc.  It is not safe to continue afterwards.
 2008-06-09 13:50:00 +01:00
Stefan Hajnoczi
04bc50f025 [GDB] Add GDB stub for remote debugging 
See http://etherboot.org/wiki/dev/gdbstub for documentation.
 2008-06-05 00:45:50 +01:00
Stefan Hajnoczi
831db76ff7 [Serial] Split serial console from serial driver 2008-06-05 00:45:43 +01:00
Stefan Hajnoczi
842165ef76 [GDBSYM] Remove unused gdbsym.c 
The GDBSYM config.h option was an attempt at QEMU GDB debugging.  I have
removed the code since it is unused and may confuse people wanting to
use the GDB stub.
 2008-06-05 00:45:32 +01:00
Michael Brown
30cd348689 [SMBIOS] Interpret UUIDs as being in network-endian order 
Various specification documents disagree about the byte ordering of
UUIDs.  However, SMBIOS seems to use the standard in which everything is
in network-endian order.

This doesn't affect anything sent on the wire; only what gets printed on
the screen when the "uuid" variable is displayed.
 2008-05-20 18:41:36 +01:00
Michael Brown
feade5da6e [Settings] Expose SMBIOS via settings API 
In particular, expose the system UUID as a setting ("smbios/uuid").
 2008-03-28 15:35:06 +00:00
Michael Brown
af466aedf1 [Settings] find_child_settings() accepts a NULL parent 2008-03-27 06:07:19 +00:00
Michael Brown
978996cdae [usr] Offer user a second chance to enter the shell on boot failure 2008-03-26 23:16:20 +00:00
Michael Brown
96edbd128f [PXEXT] Avoid queueing zero-length buffers in posix_io.c 
read_user() assumes that zero-length buffers don't exist, and optimises
around this.
 2008-03-25 21:10:21 +00:00
Michael Brown
92d15eff30 [Settings] Remove assumption that all settings have DHCP tag values 
Allow for settings to be described by something other than a DHCP option
tag if desirable.  Currently used only for the MAC address setting.

Separate out fake DHCP packet creation code from dhcp.c to fakedhcp.c.

Remove notion of settings from dhcppkt.c.

Rationalise dhcp.c to use settings API only for final registration of the
DHCP options, rather than using {store,fetch}_setting throughout.
 2008-03-25 20:46:16 +00:00
Michael Brown
ee5bdb0d75 [PXEXT] Avoid returning a false EOF when we have an empty buffer queued 2008-03-25 20:29:42 +00:00
Michael Brown
8f00c84828 [Settings] Add named setting for next-server 
It's probably easier to have a named setting for next-server, rather
than to explain to people why they need to pretend it is option 175.3.
 2008-03-24 00:48:06 +00:00
Michael Brown
23e077666b [Settings] copy_settings() should not fail if some settings are missing! 2008-03-23 23:28:21 +00:00
Michael Brown
65c0974d1f [Settings] Bugfix: store_setting() now applies changes even on root block 2008-03-22 00:40:33 +00:00
Michael Brown
e5cea13e51 [Settings] Implement simple_settings backed with extensible DHCP options 2008-03-22 00:31:08 +00:00
Michael Brown
a462c96ffc [Settings] DHCP is now working using the new settings API. 2008-03-21 22:55:59 +00:00
Michael Brown
8afb36c3bc [Settings] Migrate DHCP and NVO code to the new settings API (untested) 2008-03-21 22:15:31 +00:00
Michael Brown
a9b62cfe8c [Settings] Use a settings applicator in ibft.c 2008-03-21 00:49:44 +00:00
Michael Brown
0fbe484566 [IPv4] Add a config option for IPv4 
IPv4 may not always be dragged into the link, so add a specific
configuration option for it.
 2008-03-21 00:06:28 +00:00
Michael Brown
eae6ac3d0b [Settings] Convert code in src/usr to use settings API. 2008-03-20 23:42:11 +00:00
Michael Brown
cf03304620 [Settings] Introduce settings applicators. 
Convert DHCP option applicators in dns.c and iscsi.c to settings
applicators.

Kill off DHCP option applicators.
 2008-03-20 23:15:48 +00:00
Michael Brown
260b93bb72 [Settings] Add settings hierarchy 
Add the notion of the settings hierarchy, complete with
register/unregister routines.

Rename set->store and get->fetch to avoid naming conflicts with get/put
as used in reference counting.
 2008-03-20 21:01:32 +00:00
Michael Brown
a48b4d9948 [Settings] Start revamping the configuration settings API. 
Add the concept of an abstract configuration setting, comprising a (DHCP)
tag value and an associated byte sequence.

Add the concept of a settings namespace.

Add functions for extracting string, IPv4 address, and signed and
unsigned integer values from configuration settings (analogous to
dhcp_snprintf(), dhcp_ipv4_option(), etc.).

Update functions for parsing and formatting named/typed options to work
with new settings API.

Update NVO commands and config UI to use new settings API.
 2008-03-20 04:06:07 +00:00
Michael Brown
af1c6b869c [Settings] Allow named settings to have their type specified explicitly 
Allow setting names such as "ip:hex".
 2008-03-18 15:51:03 +00:00
Michael Brown
070cbebc26 [Timers] Initialise timers on first use 
Timers are sometimes required before the call to initialise(), so we
cannot rely on initialise() to set up the timers before use.

Also fix a potential integer overflow issue in generic_currticks_udelay()
 2008-03-18 15:23:10 +00:00
Michael Brown
2652abdc5f [Timers] Miscellaneous timer system fixes 
Add missing comments to timer code.

Lock system if no suitable timer source is found.

Fix initialisation order so that timers are initialised before code that
needs to use them.
 2008-03-18 14:48:28 +00:00
Michael Brown
03398e3389 [Settings] Allow encapsulated options to be specified as named settings 
Allow encapsulated options to be specified as e.g. "175.3".  As a
side-effect, change the separator character for the type field from "." to
":"; for example, the IP address pseudo-option is now "175.3:ipv4".
 2008-03-18 04:13:11 +00:00
Michael Brown
e2613e8896 [Settings] Add int16, int32 and hex-string configuration setting types 
Add parse and display routines for 16-bit and 32-bit integer configuration
settings.

Add parse and display routines for hex-string configuration settings.

Assume hex-string as a configuration setting type if no type is explicitly
specified.
 2008-03-18 03:23:36 +00:00
Michael Brown
6fe585642a [libc] Fix a validation bug in strtoul() 
strtoul() was accepting the characters immediately above ASCII 0..9 as
valid hex digits, due to a missing comparison.
 2008-03-18 03:14:05 +00:00
Michael Brown
5a08b434c7 [Settings] show_setting() functions return snprintf()-style length. 
show_setting() and related functions now return an "actual length" in the
style of snprintf().  This is to allow consumers to allocate buffers large
enough to hold the formatted setting.
 2008-03-18 00:48:23 +00:00
Michael Brown
3e781eb87f Merge branch 'xl0-timer' 2008-03-10 13:02:53 +00:00
Michael Brown
b08a6f5300 [Command] Add "sanboot" command. 2008-03-04 17:59:26 +00:00
Alexey Zaytsev
1935439f86 fix the rdtsc namimg 2008-03-02 05:19:29 +03:00
Alexey Zaytsev
379c37bafb Cleanups 
Replace a printf with a DBG in timer_rtdsc.c
Replace a printf in timer.c with assert
Return proper error codes from timer drivers

Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
 2008-03-02 04:36:50 +03:00
Alexey Zaytsev
a1572e0ab0 Modify gPXE core and drivers to work with the new timer subsystem 
Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
 2008-03-02 03:41:10 +03:00
Alexey Zaytsev
4006d229e5 Introduce the new timer subsystem. 
Timer subsystem initialization code in core/timer.c

	Split the BIOS and RTDSC timer drivers from i386_timer.c

	Split arch/i386/firmware/pcbios/bios.c into the RTSDC
	timer driver and arch/i386/core/nap.c

	Split the headers properly:
		include/unistd.h - delay functions to be used by the
					gPXE core and drivers.

		include/gpxe/timer.h - the fimer subsystem interface
					to be used by the timer drivers
					and currticks() to be used by
					the code gPXE subsystems.

		include/latch.h	- removed
		include/timer.h - scheduled for removal. Some driver
					are using currticks, which is
					only for core subsystems.

Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
 2008-03-02 03:15:07 +03:00
Michael Brown
b87904ab20 Remove reference to COFF support. I can find no trace of ever having supported it. 2008-02-21 04:11:56 +00:00
Michael Brown
c1006ffdb7 If no shell was requested via Ctrl-B, exit immediately if boot fails. 2008-02-11 17:51:44 +00:00
Michael Brown
a2b4252d5a Add XFER_INIT() macro. 2008-01-22 18:48:47 +00:00
Michael Brown
f6a8158eed Make seek information part of the xfer metadata, rather than an entirely 
separate xfer method.

Add missing .alloc_iob entries to several xfer_interface_operations
structures.
 2008-01-08 16:46:55 +00:00
Michael Brown
698b5bc887 Fix a minor logical error in posix_io.c 2007-12-07 00:52:48 +00:00
Michael Brown
be6ada2b7b Add missing format qualifier 2007-12-06 21:38:23 +00:00
Michael Brown
1de705e30f Reallocate memory for bitmaps only when necessary. 2007-11-29 19:10:10 +00:00
Michael Brown
3b1efba864 Add RFC2090 TFTP multicast support. 2007-11-28 10:57:26 +00:00
Michael Brown
899f5b8ab2 Added definition of a UUID and uuid_ntoa() (for debugging), and 
implemented smbios_get_uuid().
 2007-11-21 02:27:07 +00:00
Michael Brown
7e3527a658 Don't get stuck in an infinite loop on negative integers! 2007-09-21 01:14:44 +01:00
Michael Brown
db124b1255 Add fls() for non-constant values. 2007-09-21 01:14:38 +01:00
Michael Brown
746d0f8feb Merge commit 'holger/strings' 2007-08-23 21:51:57 +01:00
Michael Brown
54bf2621ed Add iBFT code derived from IBM document. 
No Microsoft intellectual property was harmed in the production of
this code.
 2007-08-09 17:44:20 -07:00
Michael Brown
cfcc41d407 Set current working URI to be that of the executable image when 
executing any image, not just a script.  (This will enable pxelinux to
use relative URIs, should it wish to.)
 2007-08-07 06:50:12 -07:00
Michael Brown
07f84566d5 Make read_user() non-blocking, and add select() call. 2007-08-04 01:22:52 +01:00
Michael Brown
218651e125 Display name and status of each file as it is downloaded. 2007-08-03 12:49:21 +01:00
Michael Brown
49009a4c1b uri_get(NULL) and uri_put(NULL) are explicitly allowed. 2007-08-02 20:26:49 +01:00
Michael Brown
d4947c05b2 Allow images to hold references to the originating URI. 
Some shuffling around of the image management code; this needs tidying up.
 2007-08-02 20:18:32 +01:00
Holger Lubitz
bb94c143d9 move strndup back to string.c - used by strdup 2007-08-02 01:48:20 +02:00
Holger Lubitz
6b6dbe5600 move strndup back to string.c - used by strdup 2007-08-02 01:47:31 +02:00
Holger Lubitz
d0d044443d memscan does not alter the mem pointer - make it const 2007-08-02 00:52:04 +02:00
Holger Lubitz
c9c97b3444 stripped down version of string.c containing only the used functions 2007-08-02 00:27:37 +02:00
Holger Lubitz
c7ad6778ac put unused functions from string.c into separate file 2007-08-02 00:27:19 +02:00
Holger Lubitz
58f5565eb0 Merge branch 'master' into strings 2007-08-02 00:13:40 +02:00
Michael Brown
726e366e8f Add code for constructing single-file cpio archives on the fly 2007-08-01 23:10:30 +01:00
Michael Brown
291d69d7fd Added support for draft version of the AoE Boot Firmware Table. 2007-07-31 14:05:03 +01:00
Michael Brown
bf3d8fb1aa Allowed HTTPS to be a separately configurable feature. 2007-07-30 03:01:04 +01:00
Michael Brown
4ce8d61a5c Import various libgcc functions from syslinux. 
Experimentation reveals that gcc ignores -mrtd for the implicit
arithmetic functions (e.g. __udivdi3), but not for the implicit
memcpy() and memset() functions.  Mark the implicit arithmetic
functions with __attribute__((cdecl)) to compensate for this.

(Note: we cannot mark with with __cdecl, because we define __cdecl to
incorporate regparm(0) as well.)
 2007-07-30 02:43:43 +01:00
Holger Lubitz
f397fc443c make bcopy use memmove 2007-07-29 17:35:38 +02:00
Michael Brown
a6467c99a0 Added a simple pass-through filter layer for data transfer interfaces. 2007-07-29 16:05:14 +01:00
Michael Brown
a6a1052096 Applied a modified version of holger's regparm patches. 2007-07-29 00:17:25 +01:00
Michael Brown
2c7ffa8c27 Added two lines of code that were completely missing! 2007-07-25 13:32:02 +01:00
Michael Brown
9aa61ad5a2 Add per-file error identifiers 2007-07-24 17:11:31 +01:00
Marty Connor
767a3cef77 Changed #warning to FIXME for nvo hack warning. 2007-07-22 20:52:32 -04:00
Michael Brown
7df3d4a177 Obsolete code removal 2007-07-17 01:19:35 +01:00
Michael Brown
7e3a8f5e10 Remove more obsolete files 2007-07-14 23:16:01 +01:00
Michael Brown
e330db3c74 Dead code removal. 
Kill off use of etherboot.h outside drivers/net.
 2007-07-14 15:42:26 +01:00
Michael Brown
4075f7596b Unplug before sending close() message, to avoid screwing up interfaces 
which respond to close with a reopen() (e.g. iSCSI).
 2007-07-10 06:25:30 +01:00
Michael Brown
d3ad76bc74 Add debug messages to process.c 2007-07-10 06:24:30 +01:00
Michael Brown
f0c44f2f71 Remove xfer_ready() (it has been replaced by xfer_window()) 2007-07-09 03:58:46 +01:00
Michael Brown
7137c20ed1 Add strcspn() and strndup() 2007-07-08 22:03:12 +01:00
Michael Brown
ed20fee0cf Make ref_get() return the reference, for cleaner code. 2007-07-08 22:02:45 +01:00
Michael Brown
b34d4d0449 Separate the "is data ready" function of xfer_seek() into an 
xfer_window() function, which can return a scalar rather than a
boolean.
 2007-07-08 14:11:07 +01:00
Michael Brown
ca4c6f9eee Kill off unused request() method in data-xfer interface. 2007-07-08 02:10:54 +01:00
Holger Lubitz
1ccb6f9dc6 convert to zalloc 2007-07-06 21:08:21 +02:00
Holger Lubitz
6def8592ed convert to zalloc 2007-07-06 20:42:05 +02:00
Holger Lubitz
75ff85441b convert to zalloc 2007-07-06 20:42:05 +02:00
Holger Lubitz
f77d9469a4 convert to zalloc 2007-07-06 20:19:55 +02:00
Holger Lubitz
aca232c973 convert to zalloc 2007-07-06 20:19:55 +02:00
Holger Lubitz
6d0332b5b3 convert to zalloc 2007-07-06 20:19:55 +02:00
Michael Brown
89349d7fad Separated out initialisation functions from startup/shutdown functions. 2007-07-03 23:09:56 +01:00
Michael Brown
cbd4542dc0 Merge branch 'master' of rom.etherboot.org:/pub/scm/gpxe 2007-07-03 21:09:26 +01:00
Marty Connor
6be8cdbb6f Merge branch 'master' of /pub/scm/gpxe 2007-07-03 16:02:26 -04:00
Marty Connor
9b3c4e4d79 Warnings purge: src/arch/i386, src/core/disk.c, ramdisk, autoboot 2007-07-03 16:02:15 -04:00
Michael Brown
438d1cc0b9 Should be using the generic device probe mechanism, when (if) they 
eventually get updated.
 2007-07-03 20:39:30 +01:00
Michael Brown
fae10a7ca1 We don't actually use the reset functions anywhere, and nothing really 
provides them.
 2007-07-03 20:34:51 +01:00
Michael Brown
fd86c819ba Use a linker-table based system to automatically mark and start up 
permanent processes, rather than requiring each one to have its own
initialisation function.
 2007-07-03 20:09:14 +01:00
Marty Connor
bf871c4d03 Warnings purge of src/core 2007-07-02 15:26:40 -04:00
Michael Brown
15f8323055 Removing obsolete files. 2007-07-01 15:30:12 +01:00
Michael Brown
8f6a4e8140 Add gdbsym.c object to help with running gdb-to-qemu 2007-06-30 22:43:31 +01:00
Michael Brown
dffdc285b3 Obsoleted by downloader.c 2007-06-28 19:28:26 +01:00
Michael Brown
f13baeb330 Added missing config.[ch] lines for FTP protocol 2007-06-28 18:49:57 +01:00
Michael Brown
6209d20779 Added monojob controller in lieu of a full working shell. 2007-06-28 14:53:12 +01:00
Michael Brown
73fe1ba9dd Kill off job::start() (it was only ever added as part of an aborted 
attempt at triggering TCP-related protocols to start).
 2007-06-28 01:09:45 +01:00
Michael Brown
07dc294de8 Update DHCP to use data-xfer interface (not yet tested). 2007-06-27 23:20:36 +01:00
Michael Brown
f77815f2b1 Kill off hotplug.h and just make net devices normal reference-counted 
structures.

DHCP still broken and #if 0'd out.
 2007-06-27 14:48:31 +01:00
Michael Brown
4f309ff0c7 Treat URIs opened via xfer_open() and friends as relative to the 
current working URI.
 2007-06-13 16:28:32 +01:00
Michael Brown
15dae1e042 Add concept of "current working URI". 2007-06-11 23:54:51 +01:00
Michael Brown
a74ecf3057 Merge branch 'master' into mcb-tcp-xfer 2007-06-11 21:36:22 +01:00
Michael Brown
058b200529 Renamed _calloc() to zalloc(), ready to be used as a standalone function. 2007-06-11 21:36:10 +01:00
Michael Brown
95adce0ce1 Add concept of transfer metadata, to be used by UDP in order to 
implement sendto()/recvfrom() equivalents.
 2007-06-11 15:04:39 +01:00
Michael Brown
b256900d4f Scripts temporarily deregister themselves while executing. This 
allows us to avoid execution loops without having to hack around the
image registration order.
 2007-06-09 19:00:34 +01:00
Michael Brown
2c569fb240 Allow xfer_open() to take a struct uri as well as a URI string. 2007-06-09 18:20:08 +01:00
Michael Brown
7c8cc3ef6c Use standard xfer_open() argument list for downloader instantiator 2007-06-09 17:42:46 +01:00
Michael Brown
08e286714f Add reference counting to register/unregister procedure. 2007-06-09 17:32:27 +01:00
Michael Brown
6f0a6c09db Merge branch 'master' into mcb-tcp-xfer 2007-06-08 16:33:24 +01:00
Michael Brown
6a5cc3533f Added missing va_end() 2007-06-03 02:11:25 +00:00
Michael Brown
a6f0a098da Add facility for resolving base+relative URIs (and paths). 2007-06-03 02:01:02 +00:00
Michael Brown
182e3ed61d Added dirname() 2007-06-03 01:51:10 +00:00
Michael Brown
816c8f3b89 Added [v]asprintf() 2007-06-03 01:50:03 +00:00
Michael Brown
335b99a39d Move [v]ssnprintf() from iscsi.c into vsprintf.c; we need them 
elsewhere as well.
 2007-05-31 13:26:50 +00:00
Michael Brown
735e07268e Update HTTP to use data-xfer interface. 2007-05-29 15:37:09 +00:00
Michael Brown
a6a18ae9af Add xfer_[v]printf() functions. 2007-05-28 20:09:44 +00:00
Michael Brown
656485c1f1 Make URI structures reference-counted. 2007-05-28 17:35:15 +00:00
Michael Brown
63719deea9 Introduce name resolution interface and named socket opener. 2007-05-27 01:07:00 +00:00
Michael Brown
bc694ec768 Move increment/decrement debug messages to DBG2 level 2007-05-27 01:04:52 +00:00
Michael Brown
a1210e4fca Eliminate PF_INET; just use the AF_INET from the struct sockaddr instead. 2007-05-26 20:41:23 +00:00
Michael Brown
10d0a1f8c7 Modify data-xfer semantics: it is no longer necessary to call one of 
request(), seek() or deliver_xxx() in order to start the data flow.
Autonomous generators must be genuinely autonomous (having their own
process), or otherwise arrange to be called.  TCP does this by
starting the retry timer immediately.

Add some debugging statements.
 2007-05-26 15:04:36 +00:00
Michael Brown
3601103381 Modify process semantics; rescheduling is now automatic. 
Add reference-counting to processes.

Add timer_running() test.
 2007-05-26 15:00:56 +00:00
Michael Brown
6006bed530 Free I/O buffers when we are finished with them! 2007-05-25 16:01:31 +00:00
Michael Brown
54138f28f6 Use list_for_each_entry_safe() when flushing queue. 2007-05-19 22:05:16 +00:00
Michael Brown
5e25a89e74 Add local address to socket openers. 2007-05-19 20:14:18 +00:00
Michael Brown
7c0a069f42 Add explicit "freeing" debug messages. 2007-05-18 15:42:02 +00:00
Michael Brown
7d2535779c Must request data before anything actually happens... 2007-05-18 15:36:11 +00:00
Michael Brown
b63b14ff32 Add debugging 2007-05-18 15:26:44 +00:00
Michael Brown
68dd826b86 Add alloc_iob() and free_iob(). (Direct search-and-replace 
equivalents for alloc_pkb() and free_pkb(), which will be retired in
due course).
 2007-05-18 14:45:16 +00:00
Michael Brown
86a948ccbe Added POSIX-style blocking I/O calls, for use by PXE TFTP API. 2007-05-18 14:19:22 +00:00
Michael Brown
59e738d756 Prefix all the open()-family routines with xfer_, to disambiguate them 
from the normal POSIX-style open()
 2007-05-18 14:16:06 +00:00
Michael Brown
b1755462ab Do not hold self-references. This then avoids the problem of having to 
ensure that we only drop our self-reference exactly once.

To maintain the guarantee that an object won't go out of scope
unexpectedly while one of its event handlers is being called, the
event-calling functions now automatically obtain and drop extra
references.
 2007-05-15 16:53:46 +00:00
Michael Brown
5471bfbbbe Data-transfer interface should now be functionally complete. 2007-05-15 15:23:09 +00:00
Michael Brown
53da1f1402 Initial sketch for a downloader object 2007-05-01 00:09:19 +00:00
Michael Brown
e3dcb9a1ad Add start() event 
Add "xfer" to all xfer functions and "job" to all job functions.
 2007-05-01 00:07:57 +00:00
Michael Brown
a90a9adbd7 Clarify behaviour of plug() by using intf_put() and intf_get(). 2007-05-01 00:06:21 +00:00
Michael Brown
31f1bf4426 D'oh 2007-04-30 01:24:52 +00:00
Michael Brown
0898b0b3b1 Added plug_plug() 2007-04-30 01:23:01 +00:00
Michael Brown
d40761d725 Add (and use) generic reference counter, to improve signal:noise ratio 
in code defining reference-counted objects.
 2007-04-29 23:53:39 +00:00
Michael Brown
36bfb6edbb Skeleton job control interface 2007-04-29 02:08:39 +00:00
Michael Brown
280160139d Add seek() 
Dehyphenate "data-transfer".
 2007-04-29 02:03:58 +00:00
Michael Brown
ff1222a8d3 Preliminary support for opening data-transfer interfaces 2007-04-28 20:56:24 +00:00
Michael Brown
1c765b3988 Added deliver-as-iobuf/deliver-as-raw concepts. 2007-04-27 00:02:23 +00:00
Michael Brown
2575ddc889 Initial sketch for the generic data-transfer interface. 2007-04-26 22:44:52 +00:00
Anselm Martin Hoffmeister
ed7dc02a95 hoffmeis: Preparations for syslog support (LOGSERVER in DHCP, linewise 
output buffering defintions and the like)
 2007-04-09 18:01:43 +00:00
Michael Brown
abccb8b63c SSL requires inordinately large data storage 2007-02-01 07:22:13 +00:00
Michael Brown
2cf1e33df1 Split bootsector execution code out into bootsector.c. 
Added basic El Torito ISO image boot capability
 2007-01-29 04:21:38 +00:00
Michael Brown
bde8878eef Keep HTTP progress updated, and display a progress indicator during the 
download
 2007-01-29 04:19:45 +00:00
Michael Brown
1a79437888 Added async_block_progress() and default SIGUPDATE handler. 2007-01-29 04:15:24 +00:00
Michael Brown
c42a384709 Moved most buffer debug messages to DBG2. 
Make expand_buffer() a non-inline function, so that we can add debug
messages.

Expandable buffers now don't *always* round up to the next power of two.
This allows e.g. loading a 137MB ISO image on a machine with only 256MB
RAM...
 2007-01-29 04:12:29 +00:00
Michael Brown
6417a6adf0 Avoid barfing on gcc's implicit memcpy()s 2007-01-26 04:14:25 +00:00
Michael Brown
afe4e011ac Move tolower() etc to ctype.h as per ISO C 2007-01-26 03:25:19 +00:00
Michael Brown
13d9a660ca Zeroing out memory before using it can be so important. 2007-01-19 14:44:59 +00:00
Michael Brown
d6909f65f0 Actually, it's probably safer *not* to leave child processes hanging 
around which still hold pointers to variables belonging to our parent...
 2007-01-19 14:20:41 +00:00
Michael Brown
b6194b8cb9 Note that the SIGCHLD handler could be re-entered. 2007-01-19 14:10:13 +00:00
Michael Brown
1411876e26 Propagate return status code from last child to fail. 2007-01-19 14:00:51 +00:00
Michael Brown
4256b3338a Split random number generation out into core/random.c, and create the 
correct prototypes for srandom(), rand() and srand().
 2007-01-19 02:02:59 +00:00
Michael Brown
f4c1e564a1 vsprintf.h is gPXE-specific; move it to include/gpxe 2007-01-19 01:17:23 +00:00
Michael Brown
73b09ecba6 Use stdio.h instead of vsprintf.h 2007-01-19 01:13:12 +00:00
Michael Brown
4e3976711d A working name resolution framework 2007-01-18 22:38:13 +00:00
Michael Brown
8bb9f726a0 When an async operation dies, orphan its children. 2007-01-18 22:36:57 +00:00
Michael Brown
6d4e37cf42 Move include/malloc.h to include/gpxe/malloc.h, since everything in there 
is now gPXE-specific.  (The standard malloc() et al have been in stdlib.h
for a while).

Add free memory counter.
 2007-01-18 20:11:04 +00:00
Michael Brown
c8b3e969a0 Allow buffers to be pre-expanded on demand. 2007-01-18 15:13:41 +00:00
Michael Brown
08da93a311 Reorder functions to more closely reflect the flow of control 2007-01-18 13:10:26 +00:00
Michael Brown
35776f481c Don't always zero memory in malloc(). This saves around 2us on a 
full-length PKB allocation.
 2007-01-18 12:54:18 +00:00
Michael Brown
0b11733b75 Replacement for fetch() which operates asynchronously and identifies 
protocols by URI scheme.
 2007-01-18 03:37:05 +00:00
Michael Brown
6601a7da6a Added async_uninit() to simplify failure paths. 2007-01-18 03:29:40 +00:00
Michael Brown
5a807994d8 Add utility function to parse port from URI 2007-01-18 03:28:55 +00:00
Michael Brown
9828181e3b Obsolete 2007-01-18 01:05:09 +00:00
Michael Brown
544fa25928 Rename e{malloc,realloc,free} to u{malloc,realloc,free}, to more obviously 
reflect the fact that they allocate and deallocate user memory (i.e.
things reached through a userptr_t).
 2007-01-16 08:36:42 +00:00
Michael Brown
4e20d73bb5 Gave asynchronous operations approximate POSIX signal semantics. This 
will enable us to cascade async operations, which is necessary in order to
properly support DNS.  (For example, an HTTP request may have to redirect
to a new location and will have to perform a new DNS lookup, so we can't
just rely on doing the name lookup at the time of parsing the initial
URL).

Anything other than HTTP is probably broken right now; I'll fix the others
up asap.
 2007-01-15 08:49:10 +00:00
Michael Brown
ec75b269d3 Add missing include 2007-01-15 08:44:05 +00:00
Michael Brown
26166cf5e0 Added a URI parser that should be standards conformant. (It can certainly 
handle something as convoluted as

  ftp://joe:secret@insecure.org:8081/hidden/path/to?what=is#this
 2007-01-14 23:48:31 +00:00
Michael Brown
c1fd6e8dc7 Once image type has been set, do not autoprobe further 2007-01-14 15:25:23 +00:00
Michael Brown
7dc50167bb Allow load() and exec() methods to be NULL. 2007-01-14 14:59:36 +00:00
Michael Brown
b07161f397 Placeholder bzImage support 2007-01-14 04:27:25 +00:00
Michael Brown
98240d99f0 Do not go past the end of the argv[] array. 
This bug found by setting read and write watchpoints at NULL in bochs.
 2007-01-14 02:01:26 +00:00
Michael Brown
dca369ddc3 Call hide_etherboot() from startup(), rather than requiring the prefix to 
do it.
 2007-01-14 00:53:56 +00:00
Michael Brown
c2708df14a Make shutdown functions callable by OS image's exec methods. 2007-01-14 00:16:41 +00:00
Michael Brown
beb941ed81 Rename "boot" to "autoboot" 2007-01-14 00:06:23 +00:00
Michael Brown
f11900a9c6 I prefer IMAGE_XXX to XXX_IMAGE. 
Add IMAGE_PXE to use the new image format framework.  "kernel pxelinux.0"
now works.
 2007-01-13 17:28:51 +00:00
Michael Brown
3b77c7aa1b Hex dumps are now integrated into the DBG() framework. 2007-01-13 16:49:38 +00:00
Michael Brown
ca3db0bf11 Added isspace() and made strtoul() accept whitespace, as per POSIX. 2007-01-12 19:11:28 +00:00
Michael Brown
83b7933f8a Damn it; my lovely resilient scheme falls down when you have a protocol 
that switches from line-oriented to byte-oriented partway through, such as
HTTP.
 2007-01-12 18:09:14 +00:00
Michael Brown
996b091b50 Added generic line-buffering code (a la stdio) 2007-01-12 17:08:37 +00:00
Michael Brown
5c72d9c4e0 Print image physical location in registration message. 2007-01-12 16:20:51 +00:00
Michael Brown
9952df9b52 Add "dhcp" command 2007-01-12 09:53:28 +00:00
Michael Brown
e2c0055e23 Let ifmgmt.c take care of calling efree(), since it's the once which 
took out the contract to eventually call efree() when it called fetch().

Maintain the most recently loaded image at the start of the list, so that
imgautoselect() will pick it.
 2007-01-12 09:46:10 +00:00
Michael Brown
67aedf34fa Use systematic names for XXX_IMAGE. 
Add scripts as an image format (since it's trivial to do).
 2007-01-12 09:00:48 +00:00
Michael Brown
eba3609e7f Add debug message 2007-01-12 08:57:51 +00:00
Michael Brown
5162f30028 Ignore comment lines. 
Avoid returning errors for comments and empty lines.
 2007-01-12 08:56:48 +00:00
Michael Brown
475d6d1f7c fetch() now knows nothing about struct image; it simply loads a file and 
returns the allocated buffer.
 2007-01-12 08:02:27 +00:00
Michael Brown
742f242863 Add free_image 2007-01-12 06:26:59 +00:00
Michael Brown
9817f93094 Add basic "fetch" and "imgstat" commands. 2007-01-12 06:05:27 +00:00
Michael Brown
b9fea9cbac Added IMAGE_LOADED flag and find_image() 2007-01-12 06:03:02 +00:00
Michael Brown
f15482d85f Added basename() to make automatically naming images easier. 2007-01-12 05:24:51 +00:00
Michael Brown
29dadc5ec6 Build automatically expanding buffers from struct buffer and erealloc(). 2007-01-12 03:51:04 +00:00
Michael Brown
6c894c2a2e Fix typo 2007-01-12 01:37:38 +00:00
Michael Brown
7bf94b5ad6 Allow for named images. 2007-01-11 23:45:18 +00:00
Michael Brown
f59ad50504 Provide registration mechanism for loaded images, so that we can e.g. 
refer to them by name from the command line, or build them into a
multiboot module list.

Use setting image->type to disambiguate between "not my image" and "bad
image"; this avoids relying on specific values of the error code.
 2007-01-11 23:43:29 +00:00
Michael Brown
4fc9333159 Move include/image.h to include/gpxe/image.h 2007-01-11 16:04:36 +00:00
Michael Brown
d9204ef676 Use physical address in debug messages; they make more sense to read. 2007-01-11 15:08:58 +00:00
Michael Brown
3634e705b7 Remove osloader.c and replace with a prep_segment() that uses userptr_t 
and get_memmap() in image/segment.c
 2007-01-11 14:32:26 +00:00
Michael Brown
fbfed96965 buffer.c should be using copy_{to,from}_user, rather than 
copy_{to,from}_phys.
 2007-01-11 05:42:06 +00:00
Michael Brown
c0ef730ec4 Fix bug in buffer.c, add buffer mini-unit test. 2007-01-11 04:46:41 +00:00
Michael Brown
e2dcd05b67 Update buffer-handling code to enable expandable buffers. 2007-01-11 03:50:47 +00:00
Michael Brown
bb2024c6d6 Move include/buffer.h to include/gpxe/buffer.h 2007-01-11 01:47:26 +00:00
Michael Brown
d45c5e7ce7 Add "route" command (which currently only displays the routing table; it 
can't modify it).
 2007-01-10 20:51:14 +00:00
Michael Brown
77bb7b13a7 Having forced __table() to natural structure alignment, it now seems 
that we *can* place arrays in tables, which means we can force the
order within a table without having to resort to explicitly numbered
sections on everything.
 2007-01-10 05:08:05 +00:00
Michael Brown
dad5274522 Add "name" field to struct device to allow human-readable hardware device 
names.

Add "dev" pointer in struct net_device to tie network interfaces back to a
hardware device.

Force natural alignment of data types in __table() macros.  This seems to
prevent gcc from taking the unilateral decision to occasionally increase
their alignment (which screws up the table packing).
 2007-01-10 04:22:09 +00:00
Michael Brown
55e590ab3a Move header file for usr/autoboot.c to include/usr 2007-01-10 02:03:20 +00:00
Michael Brown
d24b80acf2 Added network interface management commands 2007-01-10 01:55:07 +00:00
Michael Brown
7b9617f5df Add device to hierarchy before calling the driver's probe() function; this 
way everything remains consistent if the probe() ends up creating child
devices.
 2007-01-08 01:29:51 +00:00
Michael Brown
0063725d28 Minimal hotplug support: provide a facility for notifying persistent 
reference holders that their reference is about to become invalid.
 2007-01-04 03:08:16 +00:00
Michael Brown
2494625702 Added auto-colourising DBGC() macro 2006-12-29 03:05:21 +00:00
Michael Brown
b6def29f2b Keep running the main processing loop while waiting for input. 2006-12-27 22:59:40 +00:00
Michael Brown
73e3e02367 Fix prototype of random() and move to stdlib.h 2006-12-22 01:44:51 +00:00
Michael Brown
fbc7b4dfa8 Add iSCSI initiator IQN as a setting 2006-12-21 16:08:37 +00:00
Michael Brown
839d425c6e Added missing header 2006-12-20 23:43:44 +00:00
Michael Brown
ae728f8d23 Some key sequences seem to end with a tilde 2006-12-20 22:12:25 +00:00
Michael Brown
791c7d3bf4 Added code to interpret ANSI keypress sequences into KEY_XXX constants. 2006-12-20 21:56:50 +00:00
Michael Brown
c21502acad No longer needed 2006-12-20 07:13:46 +00:00
Michael Brown
84202d89f0 Split the (quick hack) boot logic out from main.c to autoboot.c, add a 
"boot" command to attempt booting from within the command shell, fall back
to shell if boot fails for any reason.
 2006-12-20 07:04:08 +00:00
Michael Brown
8f9336e0c1 Add "config" command to access config UI 2006-12-20 05:37:33 +00:00
Michael Brown
2b97d2ebc5 8-bit integers are 1 byte long, not 8... 2006-12-20 05:04:17 +00:00
Michael Brown
b93ff48173 Added descriptive text for settings and setting types, and display it in 
the option config UI.
 2006-12-20 04:58:26 +00:00
Michael Brown
35edecac34 Move {show,set,clear}_setting() to {show,set,clear}_named_setting(). 
Introduce new {show,set,clear}_setting() that take a struct setting *
rather than a const char *.

set_setting() handles calling clear_setting() when appropriate, so that
individual setting types don't have to check for empty strings.
 2006-12-20 04:20:13 +00:00
Michael Brown
7766e34ed1 Split strerror() out from errno.c 2006-12-20 03:49:36 +00:00
Michael Brown
84a2b886e1 Split error-message table portions of errno.h out to gpxe/errortab.h 2006-12-20 03:40:48 +00:00
Michael Brown
4f506328ad Use -ENOSPC rather than -ENOMEM, to distinguish the cases "generic out of 
memory" and "no space left for DHCP options"
 2006-12-20 03:33:37 +00:00
Michael Brown
637a891264 Fix prototype of sleep() and move it to unistd.h 2006-12-20 03:14:59 +00:00
Michael Brown
ec5789bf0c Select required commands via config.h 2006-12-20 00:39:06 +00:00
Michael Brown
38ad706b08 Use new minimal shell 2006-12-20 00:26:01 +00:00
Michael Brown
19e1d674d3 Catch attempts to print NULL strings 2006-12-19 22:33:42 +00:00
Michael Brown
70d20c4e7a Use common symbols to avoid dragging in getopt.o unless a getopt-using 
command is linked in.
 2006-12-19 16:27:15 +00:00
Michael Brown
1cd45decc4 Added support for interpreting ANSI escape sequences on behalf of 
non-ANSI-capable consoles.
 2006-12-18 00:01:30 +00:00
Michael Brown
007ca97f25 Added clear_setting() 2006-12-12 15:49:46 +00:00