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Author SHA1 Message Date
Ben Gras
5c55d94007 Bigger BUFSIZ for bigger fs block size. 2006-07-06 10:02:25 +00:00
Ben Gras
1561067ee4 Grant system dynamic-only. 2006-06-30 14:40:29 +00:00
Ben Gras
b654c02f55 Give pm its own brk() so malloc() works in pm. pm needs more stack for this. 2006-06-30 14:36:11 +00:00
Ben Gras
b5179d7025 Split do_brk in a stub and a function that does the real work, so that 
the real work can be called from elsewhere too. Specifically, to allow PM
its own brk().
 2006-06-30 14:35:38 +00:00
Ben Gras
0323892f71 3rd fix for improper behaviour on crashing driver with safe_io_conversion 2006-06-29 14:24:07 +00:00
Ben Gras
407eefe63a Compile fix 2006-06-29 14:23:33 +00:00
Ben Gras
f1222a09a6 Make stack traces on exceptions possible. 2006-06-29 13:35:27 +00:00
Ben Gras
bfca7d68ba Fix another bug related to trying i/o more than once 2006-06-28 12:20:30 +00:00
Ben Gras
46646a49a8 Don't print cloexec 2006-06-28 10:04:32 +00:00
Ben Gras
f9fb0ff546 Fix bug where safe conversion doesn't happen after 1st time in loop 2006-06-28 10:03:18 +00:00
Ben Gras
6b1f8de38a Added _select() stub for select(). 2006-06-27 18:28:33 +00:00
Ben Gras
bd535a120b . satisfy some gcc warnings (uninitialized/unused variables) 
. change cloexec mask from long to fd_set to remove 32 fd's per
   process restriction (from cloexec at least)
 2006-06-27 16:47:35 +00:00
Ben Gras
a0f8161fe7 Stopgap for tar creating insane group ownerships due to tiny gid_t. 2006-06-27 16:30:46 +00:00
Ben Gras
59bedc2074 let dynamic allocation of table work 2006-06-27 14:15:47 +00:00
Ben Gras
607fb6bf7f Add a flag to grants system indicating a slot is VALID; so a slot 
can be reserved (USED), while toggling VALID on and off.
 2006-06-27 12:19:45 +00:00
Ben Gras
a587273c56 . expanded grant manipulation interface to more direct 
manipulation
. made fs allocate a grant for every ioctl, even if no data
  is being copied, in order to disambiguate concurrent ioctls
  on the same minor
 2006-06-26 16:08:42 +00:00
Philip Homburg
2f50f92eb3 Move inet to safe copies. 2006-06-26 16:03:35 +00:00
Ben Gras
961a173573 Fix to let elle understand window size. 2006-06-26 15:15:40 +00:00
Philip Homburg
de07a562d1 Vectored safe copies for inet. 2006-06-26 14:20:11 +00:00
Philip Homburg
14c9743ecf First cut at safe copies for inet. Breaks tcpstat. 2006-06-26 11:17:19 +00:00
Ben Gras
48a6203ae7 A backup of the readclock command that shouldn't have been imported into cvs. 2006-06-26 08:58:11 +00:00
Ben Gras
3b814d36d1 Rename paramctl to setgrant. 2006-06-23 15:35:05 +00:00
Philip Homburg
add4be444f get_sys_bits 2006-06-23 15:32:24 +00:00
Ben Gras
002922fa4c New kernel call, SYS_PARAMCTL, that sets parameters of the caller 
and is therefore unprivileged. Used to set grant tables.
 2006-06-23 15:07:41 +00:00
Philip Homburg
8dfac43a75 Print ipc_to in hex. Also print the 'system' call mask. 2006-06-23 13:27:03 +00:00
Ben Gras
777dbbe3f7 Everyone's endpoint number 2006-06-23 12:16:22 +00:00
Ben Gras
0e9c6932c4 use malloc() + copy + free() instead of realloc() 2006-06-23 12:07:41 +00:00
Ben Gras
3ffa1684ae New option -E for ps that prints endpoint numbers instead of pids. 2006-06-23 11:59:20 +00:00
Ben Gras
31318a8ce5 library interface for vectored safecopy variant. 2006-06-23 11:54:35 +00:00
Ben Gras
d402047222 Added vectored variant of sys_safecopy*. 2006-06-23 11:54:03 +00:00
Ben Gras
82855e9cf5 . leave out dead code from device.c 
. don't loop doing a receive() after sendrec() - chance of recovering is not
  high, and can lead to receive()ing a notify() (which can't happen in sendrec()),
  which is terrible
. return status from device when DEV_CANCEL is done on a signal; hardcode EAGAIN to
  become EINTR though
 2006-06-23 11:51:56 +00:00
Philip Homburg
08bb0f7708 No longer build Michael Temari's httpd. Install a httpd from ports. 2006-06-22 11:53:03 +00:00
Philip Homburg
529ca8a4df Added strlcat and strlcpy. 2006-06-22 11:47:18 +00:00
Philip Homburg
bd783b901f Added prototype for inet_aton. 2006-06-22 11:45:59 +00:00
Philip Homburg
20a9ca246d Added __minix3 to make it easier to figure out that we are compiling on/for 
Minix 3.
 2006-06-22 11:44:17 +00:00
Ben Gras
ed9be75384 <minix/safecopies> 2006-06-20 14:25:42 +00:00
Ben Gras
7b6a1e5f59 More space for rs 2006-06-20 10:59:45 +00:00
Ben Gras
0d39b17655 Changed order of -lsys and -lsysutil for printf() 2006-06-20 10:50:29 +00:00
Ben Gras
705f1039d9 order changed for printf() 2006-06-20 10:47:25 +00:00
Ben Gras
cef426ee54 There is no lex. 2006-06-20 10:14:25 +00:00
Ben Gras
848b96a9a4 Fixes for usb and bios. 2006-06-20 10:13:56 +00:00
Ben Gras
223a0e7b60 Fix for KERNEL definition. 2006-06-20 10:13:32 +00:00
Ben Gras
150c964b49 Fix for losing REVIVE 2006-06-20 10:12:30 +00:00
Ben Gras
2384a85296 FS support for grant-based i/o. 
For character device i/o, FS does a so-called 'magic' grant to let the
driver copy from or to user space. As this is done in FS address space,
the driver is told to do this in FS address space. The redirection to
the right user process then happens at copy-time in the kernel, using the
FS grant table. This also happens for DEV_READ and DEV_WRITE on block
devices.

For other block device i/o, which happens from/to FS buffers, FS does
a 'direct' grant to its own address space for the driver.

After the i/o returns, this access has to be K-I-L-L-E-D, revoked.
Sometimes this is after a SUSPEND and DEV_REVIVE, in which case the
revoking happens in pipe.c.

This conversion happens in safe_io_conversion() in device.c, called
by dev_io and dev_bio.

FS has to pre-allocate its own space for these grant tables. This happens
in main.c.
 2006-06-20 10:12:09 +00:00
Ben Gras
54f1e6d3d4 Use endpoint_t 2006-06-20 10:04:33 +00:00
Ben Gras
7a76a7a495 Rename protected to prot 
Also print size of grant table known in system
 2006-06-20 10:03:48 +00:00
Ben Gras
3061d7b17a Changed do_devio not to require DIO_TYPE, but to extract type 
from DIO_REQUEST. Also do_vdevio. Also do_sdevio, but this
function also supports grant id's and offsets.

do_segctl: rename protected to prot.

do_umap: support for GRANT_SEG umap.

do_privctl: support SYS_PRIV_SET_GRANTS, which sets location and size
of in-own-address-space grant table.

do_safecopy: functions to verify and perform 'safe' (grant-based) copies.
 2006-06-20 10:03:10 +00:00
Ben Gras
ada6592af9 Prototype of do_safecopy 2006-06-20 09:59:50 +00:00
Ben Gras
bf6fa2acd0 Introduced global sys_call_code to check in called kernel call 
implementation functions.

Changed check in system.c to check compile-time-sized bitmap of
kernel calls.

Added SYS_SAFECOPYFROM and SYS_SAFECOPYTO, both mapping to
do_safecopy (that's what sys_call_code is used for).
 2006-06-20 09:58:58 +00:00
Ben Gras
b89c6634f5 Use endpoint_t. New prototypes for related to grants and safecopy functions. 2006-06-20 09:57:00 +00:00