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1660 Commits (b1755462ab344ff758c3a1e6ae0d10a729d96d1b)

Author SHA1 Message Date
Michael Brown ebb00e032c Misread the definition of the type_of_loader field; it should include a 
version.
 2007-01-19 15:40:01 +00:00
Michael Brown 92a78c8e15 Added SIGKILL handler 2007-01-19 15:19:52 +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 cde6d776e3 Handle structured error codes. 2007-01-19 13:52:50 +00:00
Michael Brown 18f9f939a8 Introduce structured error codes. 2007-01-19 13:15:26 +00:00
Michael Brown c2352dc8de Add POSIX prototypes for time functions, to allow external code to build 
more easily within gPXE.

Note that we don't have function bodies for these functions yet.
 2007-01-19 03:09:22 +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 06475f7b69 Finally move the prototypes for printf() and friends to stdio.h 2007-01-19 00:58:49 +00:00
Michael Brown 1a0ca661c2 4.3BSD says that bcopy and bzero are defined in strings.h, not string.h 2007-01-19 00:51:13 +00:00
Michael Brown a213876382 Typo 2007-01-19 00:48:13 +00:00
Michael Brown b02a564297 Add missing prerequisite include 2007-01-19 00:39:12 +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 075f8144ff Have DHCP set the nameserver, rather than DNS read the DHCP nameserver 
value.
 2007-01-18 21:22:03 +00:00
Michael Brown c014f607a8 Use total free memory as advertised window. This seems to be sufficient 
to avoid drops even on slow NICs.
 2007-01-18 20:39:17 +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 5ff23aa406 Include stdlib.h rather than malloc.h 2007-01-18 20:06:03 +00:00
Michael Brown d12770e254 console.h is no longer needed for debugging 2007-01-18 19:13:25 +00:00
Michael Brown 37f1b12587 Allow truly arbitrary debug levels to be specified via DEBUG= 2007-01-18 19:00:09 +00:00
Michael Brown 5d57cd47a2 Declaring the CPU architecture in the middle of an assembly file is 
somewhat redundant, and also causes gas to complain when we include
the profiling code (which uses an i586 instruction).
 2007-01-18 18:53:32 +00:00
Michael Brown f781a98ac4 Add DBGLVL_PROFILE 2007-01-18 17:59:59 +00:00
Michael Brown 05f4c3d176 Remove the one-packet-per-poll-cycle limit; it seems to no longer be 
needed now that performance is up.
 2007-01-18 16:50:35 +00:00
Michael Brown 5b00fbade3 Increase window size to 64kB. Line rate downloads on a 100Mbps link, 
anyone?
 2007-01-18 16:39:55 +00:00
Michael Brown bd95927386 Accelerate memcpy() by around 32% on large, dword-aligned copies. 2007-01-18 15:18:02 +00:00
Michael Brown c8b3e969a0 Allow buffers to be pre-expanded on demand. 2007-01-18 15:13:41 +00:00
Michael Brown 6c72bf13a1 Presize the download buffer when we see the Content-Length header; 
this saves around 70us per received packet (which is around 50% of the
overall packet processing time).
 2007-01-18 13:26:57 +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 06630a3036 Switch from calloc() to malloc()+memset() to match the practices used 
almost everywhere else.
 2007-01-18 12:45:58 +00:00
Michael Brown 48fe701716 Respect the RX quota. This improves poll time by about 0.7us when the 
quota is 1.
 2007-01-18 12:34:12 +00:00
Michael Brown dd6d94004f HTTP/DNS now working fully asynchronously. HTTP/IP addresses and any 
other protocol won't work at the moment.
 2007-01-18 03:39:45 +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 99e58865c7 Use struct sockaddr rather than struct sockaddr_tcpip 
Tidy up code
 2007-01-18 03:35:00 +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 8ffbbebf11 Ensure that struct sockaddr is long enough... 2007-01-18 03:28:29 +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 ff8528ea9a Create and use async_block() macro; it cuts down on the visual overhead 
of blocking on asynchronous operations, when that isn't an important
aspect of the code.
 2007-01-16 08:10:54 +00:00
Michael Brown f11da20f25 When a network device is specified to tcpip_tx() or it's children, treat 
it as a fallback network device rather than an explicitly forced network
device.

Clear routing table entries before re-attempting DHCP.
 2007-01-16 04:09:13 +00:00
Michael Brown 1a1fc23417 Improve debugging 2007-01-16 03:29:15 +00:00
Michael Brown bcdb6fad3e Improve debug messages 2007-01-16 03:19:40 +00:00
Michael Brown 835d35749f Improved debugging 2007-01-16 03:10:37 +00:00
Michael Brown 143d14614d Quickly hack in DNS resolution as a proof of concept 2007-01-15 17:32:52 +00:00
Michael Brown 9af12d5fba A working DNS resolver (not yet tied in to anything) 2007-01-15 17:31:35 +00:00
Michael Brown df0397f334 Update TFTP and FTP to take the same temporary URI scheme as HTTP 2007-01-15 09:58:26 +00:00
Michael Brown afa752f5fb Protocol's get() method no longer takes ownership of the URI. HTTP is the 
exception rather than the rule; we may as well keep things clean for other
protocols.
 2007-01-15 09:18:06 +00:00
Michael Brown 1f92c6b3e8 Must free http on the error path; nothing else will do it 2007-01-15 09:08:40 +00:00
Michael Brown c676591cd1 Unmaintained example code is probably worse than useless. 2007-01-15 09:06:12 +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 90d859c34b Add ETIMEDOUT 2007-01-15 02:46:56 +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 a5a330339b Split DBG() statement containing two inet_ntoa() statements; they 
return a static buffer.
 2007-01-14 19:58:41 +00:00
Michael Brown ce7289a766 Dump buffer and packet information in PXENV_UDP_READ as well 2007-01-14 18:22:37 +00:00
Michael Brown 76aa9ad07d Make TCP give up immediately when it receives -ENETUNREACH from 
tcpip_tx().  This avoids the irritating wait when you accidentally type
"kernel pxelinux.0" before bringing up the network interface.

Add ENETUNREACH to strerror()'s list.
 2007-01-14 16:47:03 +00:00
Michael Brown c953c1a1c3 Use -ENETUNREACH to mean "no reachable network device exists, don't bother 
retrying".
 2007-01-14 16:22:10 +00:00
Michael Brown 8edf8f6fa8 Add the "initrd" command 2007-01-14 16:09:48 +00:00
Michael Brown a5f6408d8e We can now load an initrd as well as a kernel 2007-01-14 16:09:01 +00:00
Michael Brown b9f99858ab Make the getmemsize() prototype available in memsizes.h, for code that 
doesn't want to go to the hassle of processing a full memory map.
 2007-01-14 15:32:25 +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 99272f958b Typo 2007-01-14 15:13:33 +00:00
Michael Brown 10c9b03cdb Actually, the initrd image should be architecture-independent. 2007-01-14 15:07:11 +00:00
Michael Brown f92e04dea4 Add dummy "initrd" image format, just so that images can be marked as 
initrds.
 2007-01-14 15:03:39 +00:00
Michael Brown 7dc50167bb Allow load() and exec() methods to be NULL. 2007-01-14 14:59:36 +00:00
Michael Brown 8a490146bf Copy command line at execution time rather than load time. 
Parse command line for "vga=" and "mem=" parameters
 2007-01-14 14:29:30 +00:00
Michael Brown 3ccd7335f0 Split bzimage_load into separate functions 2007-01-14 13:36:33 +00:00
Michael Brown 97a3037f76 Can start a Linux kernel directly (albeit with no initrd support) 2007-01-14 12:34:35 +00:00
Michael Brown 3cbf0db0a3 Remove some references to no-longer-existent source files. 
Add a path for isolinux.bin that is correct on my system; hopefully it
will work on others too.
 2007-01-14 11:52:22 +00:00
Michael Brown b04b0ddc31 .lilo and derived targets (e.g. .iso) now load properly. 2007-01-14 11:50:44 +00:00
Michael Brown 77d280968a Obsoleted by arch/i386/image/multiboot.c 2007-01-14 11:45:28 +00:00
Michael Brown 784e10635a Can almost start a kernel now. It dies with "No setup signature found" 2007-01-14 06:36:20 +00:00
Michael Brown 698bbe0155 Obsolete 2007-01-14 04:28:42 +00:00
Michael Brown b07161f397 Placeholder bzImage support 2007-01-14 04:27:25 +00:00
Michael Brown 797edf28b7 Replace image->entry with image->priv. 2007-01-14 04:04:28 +00:00
Michael Brown 3bdbfe1f00 Mostly updated. Won't work yet. 2007-01-14 03:49:07 +00:00
Michael Brown 644f3674e6 Obsolete for some time 2007-01-14 02:24:41 +00:00
Michael Brown 6dcb182aee Fill in BufferSize in PXENV_GET_CACHED_INFO 2007-01-14 02:21:02 +00:00
Michael Brown 7bc03d37a2 Select a PXE network device before starting PXE NBP. 
Move pxe_boot() code to pxe_image.c
 2007-01-14 02:20:10 +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 55e6d7b70c Use debug autocolourisation. 
Shut down before jumping to the multiboot image.
 2007-01-14 00:57:43 +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 c088ecf042 Make "boot" a synonym for "imgexec", to match grub 2007-01-14 00:08:13 +00:00
Michael Brown beb941ed81 Rename "boot" to "autoboot" 2007-01-14 00:06:23 +00:00
Michael Brown ece4ff929e Use _text, rather than assuming _text==0. 2007-01-14 00:03:07 +00:00
Michael Brown f547f148d3 Use {get,set}_fbms() so that allocated base memory is correctly hidden. 2007-01-14 00:01:16 +00:00
Michael Brown 0b0e34e667 Provide {get,set}_fbms() in basemem.h. 
set_fbms() will also update the E820 hidden region.
 2007-01-13 23:57:31 +00:00
Michael Brown aaed3d50a8 Some operating systems get a nasty shock if a region of the E820 map seems 
to start on a non-page boundary.  Make life safer by rounding out our
edited regions.
 2007-01-13 23:38:33 +00:00
Michael Brown d0f4e9a54b Add some trace messages for important events 2007-01-13 17:54:41 +00:00
Michael Brown 526d314266 Advertise a larger MSS to improve TCP performance. 2007-01-13 17:36:17 +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 bd863e4112 Add header for pxe_boot() 2007-01-13 17:23:44 +00:00
Michael Brown 4b77061881 Pick up the return status code from the correct place now that we 
don't overwrite the parameter block until *after* the debug code.
 2007-01-13 16:55:57 +00:00
Michael Brown 5817c9f114 When an UNDI API call fails, print everything there is to know about it. 2007-01-13 16:53:55 +00:00
Michael Brown 3b77c7aa1b Hex dumps are now integrated into the DBG() framework. 2007-01-13 16:49:38 +00:00
Michael Brown 6a3c76c8e0 Always send EOI. We can't feasibly share interrupts (since we have no 
clue what the "previous" interrupt handler will do, which could range
from "just an iret" to "disable the interrupt"), and that means that
we have to take responsibility for ACKing all interrupts.  Joy.
 2007-01-13 14:45:26 +00:00
Michael Brown 86171c53f4 Damn Broadcom and their damned incorrect assumptions about x86 memory 
allocation.
 2007-01-13 01:48:12 +00:00
Michael Brown 341c0b9cfb Add HTTP test support 2007-01-12 19:19:59 +00:00
Michael Brown 497c3a5aad Fixed HTTP 2007-01-12 19:18:13 +00:00
Michael Brown 369754f959 Whitespace fix 2007-01-12 19:17:25 +00:00
Michael Brown 63386f4455 Added ENOENT, since HTTP 404 translates to it 2007-01-12 19:14:01 +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 ad22cccc09 No need to maintain a received byte count; we always fill in sequential 
order so we can just use buffer->fill.
 2007-01-12 17:16:46 +00:00
Michael Brown 996b091b50 Added generic line-buffering code (a la stdio) 2007-01-12 17:08:37 +00:00
Michael Brown bcd6ca3291 Place multiboot tables in base memory; at least some OSes won't see it 
if we don't.
 2007-01-12 16:25:05 +00:00
Michael Brown 5c72d9c4e0 Print image physical location in registration message. 2007-01-12 16:20:51 +00:00
Michael Brown 0f29e0e46e Ensure multiboot modules are in ascending order of memory start 
address, to work around OS bugs.
 2007-01-12 12:03:19 +00:00
Michael Brown 53e948bba8 Fix the memory map. 2007-01-12 11:38:04 +00:00
Michael Brown 112d7f9d79 Code used for load buffer and multiboot image testing 2007-01-12 10:12:11 +00:00
Michael Brown 49fc8dcdc3 Use dhcp(), imgfetch() etc. to boot rather than dhcp_test(). 2007-01-12 10:08:27 +00:00
Michael Brown b45a9bfa2d Added missing declaration. 2007-01-12 10:07:56 +00:00
Michael Brown a6afbe762c Make DEBUG=script echo the commands as they are executed 2007-01-12 10:06:59 +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 39ede8c7e8 Added dhcp() user-level command. 2007-01-12 09:20:11 +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 83559c668a Don't print "<NULL>" when we use imgautoselect(). 2007-01-12 08:59:25 +00:00
Michael Brown 2be2f3b205 Rearrange struct image to reflect usage of the fields 2007-01-12 08:58:16 +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 48e0fc3447 API change: the raw image will no longer be (hypothetically) discarded 
after a call to load().
 2007-01-12 08:15:25 +00:00
Michael Brown 6fdc6c81a6 Force probing of multiboot before ELF. 2007-01-12 08:10:35 +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 2876197306 Allow "imgexec" with no arguments to boot the file that was loaded with 
"kernel".
 2007-01-12 07:32:46 +00:00
Michael Brown f135a37f30 Cleaner separation between imgXXX() functions and image_cmd.c 2007-01-12 07:22:20 +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 8b6eaf3c82 Be silent if there are no network interfaces 2007-01-12 05:48:22 +00:00
Michael Brown e96041872e Added missing declaration. 2007-01-12 05:27:02 +00:00
Michael Brown 9debfed07a Place command-line inline, to save on memory allocation hassles. 2007-01-12 05:26:19 +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 77b7640af4 Fix the only bug (which was to use DBGC() in place of DBG()!) and add 4kB 
alignment.
 2007-01-12 03:28:03 +00:00
Michael Brown 132a8fe49d Quick and dirty test for emalloc() 2007-01-12 03:27:05 +00:00
Michael Brown 45ec9c907e First version of an external memory allocator (not tested) 2007-01-12 03:15:29 +00:00
Michael Brown 1d313234b3 Rename copy_user() to memcpy_user(). Add memmove_user() and 
userptr_add().
 2007-01-12 03:14:15 +00:00
Michael Brown 859da6bd32 Allow external code to update hidden memory regions. 2007-01-12 03:13:04 +00:00
Michael Brown 687c1e3227 Nothing (not even hidemem.c) uses this file! 2007-01-12 02:45:46 +00:00
Michael Brown 39a8ed827c Long since obsoleted by arch/i386/scripts/i386.lds 2007-01-12 02:43:10 +00:00
Michael Brown 2e088d9afc Obsoleted by arch/i386/interface/pxe/pxe_call.c 2007-01-12 02:42:14 +00:00
Michael Brown f81bf3bc52 We *do* have a __data16_array after all! 2007-01-12 02:37:47 +00:00
Michael Brown 2c66588f3e Add UNULL 2007-01-12 01:40:12 +00:00