Commit graph

350 commits

Author SHA1 Message Date
Philip Homburg
56a68dc32b Hack in service to use RS_START instead of RS_UP. RS reports the use of RS_UP. 2007-05-02 15:20:28 +00:00
Philip Homburg
33d31720a5 Use ds_retrieve_u32 to get the endpoint of inet and of the ethernet drivers. 2007-05-02 11:30:16 +00:00
Philip Homburg
02a229f14d Publish endpoints in ds. 2007-04-27 13:03:33 +00:00
Philip Homburg
93f9bb4a57 Restrict access to rs to root's processes. 2007-04-27 12:27:40 +00:00
Philip Homburg
69ca935251 getpeuid implementation. Get the uid of a process (by endpoint) 2007-04-27 12:21:06 +00:00
Ben Gras
8eb09f6ddc . readall: use lseek64() to read more than 4GB of a device
. vfs: 64-bit offset support for character device i/o
   (also remove unused dev_bio function)
 . memory: /dev/null and /dev/zero are infinitely large, don't stop
   reading/writing at 4GB
2007-04-24 13:27:33 +00:00
Philip Homburg
0bd4c5ee7d Initial convertion to asynchronous sends for communicating with ethernet
drivers.
2007-04-23 14:49:20 +00:00
Philip Homburg
b613f5cb4b Report and detect exec failures using a pipe.
XXX Hardcoded values for s_ipc_to and s_ipc_sendrec.
2007-04-23 14:47:04 +00:00
Philip Homburg
727ce18aa8 Initialize exec_pipe. 2007-04-23 14:43:25 +00:00
Philip Homburg
849285f66d Diagnostics from service go to standard error. 2007-04-23 14:42:58 +00:00
Philip Homburg
e68a2b4d6a Extra flags RS_SIGNALED and RS_EXECFAILED. Pipe for detecting exec failures. 2007-04-23 14:42:08 +00:00
Philip Homburg
b4a88a3705 Removed ECHO from dump, added SENDA. Also dump s_ipc_sendrec. 2007-04-23 14:40:13 +00:00
Philip Homburg
77f5b40141 Round memory size up for VM. 2007-04-23 14:38:55 +00:00
Philip Homburg
b5e6319ae7 Removed some indentation. 2007-04-23 14:33:42 +00:00
Ben Gras
1d7cea10ed str[] is too small - reported by Erik van der Kouwe <vdkouwe@cs.vu.nl>. 2007-04-23 13:36:13 +00:00
Ben Gras
dc67b37a10 more removing of warning and debug messages. 2007-04-13 14:00:31 +00:00
Ben Gras
6b2ad6fdfd verbose message out 2007-04-12 17:01:54 +00:00
Ben Gras
a2b1a5134b . leave out hardware-fp code from library
. minor packman usage tweaks
 . kernel feature for printing version number
 . removed some verbose debug messages from vfs/mfs
2007-04-12 16:45:00 +00:00
Ben Gras
2958815463 leave out debug message 2007-04-12 15:24:45 +00:00
Ben Gras
647d1496f3 fix for warning 2007-04-02 14:45:56 +00:00
Ben Gras
52b71b2396 Minor change to path lookup that fixes the bug that creating a file
as a first component of an absolute path failed (e.g. 'touch /file'),
due to leading slashes not being skipped in the processed path counter
in that case, causing create to fail.
2007-02-28 13:13:39 +00:00
Ben Gras
3b08825d85 . service tells you which device it couldn't stat
. bigger rs and ramdisk for drivers
. sanity check for pv_set macro for oversized arguments
2007-02-23 18:22:46 +00:00
Ben Gras
448376ee7e . use library function to parse memory string
. remove unused variables and some other gcc warnings
2007-02-16 15:55:20 +00:00
Ben Gras
b267d42531 removed or optionalized verbose/debugging messages 2007-02-16 15:50:30 +00:00
Ben Gras
bd27c5240b Typo's. 2007-02-12 12:27:43 +00:00
Ben Gras
9f2f3dd488 don't call mkdep with an absolute path 2007-02-08 16:26:20 +00:00
Ben Gras
a12c7ad963 Start a 2nd copy of at_wini, for /dev/c1*. This requires a slightly
larger rs.
2007-02-08 14:04:59 +00:00
Ben Gras
8ea438ae93 Retired DEV_{READ,WRITE,GATHER,SCATTER,IOCTL} (safe versions *_S are to
be used and drivers should never receieve these 'unsafe' variants
any more).
2007-02-07 16:22:19 +00:00
Ben Gras
41e9fedf87 Mostly bugfixes of bugs triggered by the test set.
bugfixes:
 SYSTEM:
 . removed
        rc->p_priv->s_flags = 0;
   for the priv struct shared by all user processes in get_priv(). this
   should only be done once. doing a SYS_PRIV_USER in sys_privctl()
   caused the flags of all user processes to be reset, so they were no
   longer PREEMPTIBLE. this happened when RS executed a policy script.
   (this broke test1 in the test set)

 VFS/MFS:
 . chown can change the mode of a file, and chmod arguments are only
   part of the full file mode so the full filemode is slightly magic.
   changed these calls so that the final modes are returned to VFS, so
   that the vnode can be kept up-to-date.
   (this broke test11 in the test set)

 MFS:
 . lookup() checked for sizeof(string) instead of sizeof(user_path),
   truncating long path names
   (caught by test 23)
 . truncate functions neglected to update ctime
   (this broke test16)

 VFS:
 . corner case of an empty filename lookup caused fields of a request
   not to be filled in in the lookup functions, not making it clear
   that the lookup had failed, causing messages to garbage processes,
   causing strange failures.
   (caught by test 30)
 . trust v_size in vnode when doing reads or writes on non-special
   files, truncating i/o where necessary; this is necessary for pipes,
   as MFS can't tell when a pipe has been truncated without it being
   told explicitly each time.
   when the last reader/writer on a pipe closes, tell FS about
   the new size using truncate_vn().
   (this broke test 25, among others)
 . permission check for chdir() had disappeared; added a
   forbidden() call
   (caught by test 23)

new code, shouldn't change anything:
 . introduced RTS_SET, RTS_UNSET, and RTS_ISSET macro's, and their
   LOCK variants. These macros set and clear the p_rts_flags field,
   causing a lot of duplicated logic like

       old_flags = rp->p_rts_flags;            /* save value of the flags */
       rp->p_rts_flags &= ~NO_PRIV;
       if (old_flags != 0 && rp->p_rts_flags == 0) lock_enqueue(rp);

   to change into the simpler

       RTS_LOCK_UNSET(rp, NO_PRIV);

   so the macros take care of calling dequeue() and enqueue() (or lock_*()),
   as the case may be). This makes the code a bit more readable and a
   bit less fragile.
 . removed return code from do_clocktick in CLOCK as it currently
   never replies
 . removed some debug code from VFS
 . fixed grant debug message in device.c
 
preemptive checks, tests, changes:
 . added return code checks of receive() to SYSTEM and CLOCK
 . O_TRUNC should never arrive at MFS (added sanity check and removed
   O_TRUNC code)
 . user_path declared with PATH_MAX+1 to let it be null-terminated
 . checks in MFS to see if strings passed by VFS are null-terminated
 
 IS:
 . static irq name table thrown out
2007-02-01 17:50:02 +00:00
Ben Gras
73e4e31376 Don't reply to the caller on RS_DOWN until process is actually dead -
otherwise (e.g.) mounts right after an unmount of the same device don't
work (duplicate label).
2007-01-22 16:44:03 +00:00
Ben Gras
2194bc0310 vfs/mount/rs/service changes:
. changed umount() and mount() to call 'service', so that it can include
   a custom label, so that umount() works again (RS slot gets freed now).
   merged umount() and mount() into one file to encode keep this label
   knowledge in one file.
 . removed obsolete RS_PID field and RS_RESCUE rescue command
 . added label to RS_START struct
 . vfs no longer does kill of fs process on unmount (which was failing
   due to RS_PID request not working)
 . don't assume that if error wasn't one of three errors, that no error
   occured in vfs/request.c
mfs changes:
 . added checks to copy statements to truncate copies at buffer sizes
   (left in debug code for now)
 . added checks for null-terminatedness, if less than NAME_MAX was copied
 . added checks for copy function success
is changes: 
 . dump rs label
drivers.conf changes:
 . added acl for mfs so that mfs can be started with 'service start',
   so that a custom label can be provided
2007-01-22 15:25:41 +00:00
Ben Gras
722f1b2b9f . added checks for buffer sizes in sys_datacopy() functions in mfs,
print debug message if copy is truncated
. increased buffer in lookup() to be PATH_MAX instead of NAME_MAX
. sanity check in fetch_name() in vfs to see if name fits, and
  is null-terminated
. first check i < NAME_MAX, then string[i] in search_dir, as we're
  not supposed to look at string[NAME_MAX]
2007-01-16 14:50:10 +00:00
Ben Gras
94b936d7c1 . added super-user check for mount
. corrected device match for unmount (otherwise unmount would
  proceed with bogus mount slot, often sending messages to 0 (PM))
. added some sanity checking to fs process number
. made fs_sendrec PRIVATE to request.c
2007-01-16 13:57:35 +00:00
Ben Gras
bcbac65a07 Don't panic if opening a block device fails. 2007-01-12 17:16:51 +00:00
Philip Homburg
9092146be7 VFS cleanup (mostly open). 2007-01-05 16:36:55 +00:00
Ben Gras
6f77685609 Split of architecture-dependent and -independent functions for i386,
mainly in the kernel and headers. This split based on work by
Ingmar Alting <iaalting@cs.vu.nl> done for his Minix PowerPC architecture
port.

 . kernel does not program the interrupt controller directly, do any
   other architecture-dependent operations, or contain assembly any more,
   but uses architecture-dependent functions in arch/$(ARCH)/.
 . architecture-dependent constants and types defined in arch/$(ARCH)/include.
 . <ibm/portio.h> moved to <minix/portio.h>, as they have become, for now,
   architecture-independent functions.
 . int86, sdevio, readbios, and iopenable are now i386-specific kernel calls
   and live in arch/i386/do_* now.
 . i386 arch now supports even less 86 code; e.g. mpx86.s and klib86.s have
   gone, and 'machine.protected' is gone (and always taken to be 1 in i386).
   If 86 support is to return, it should be a new architecture.
 . prototypes for the architecture-dependent functions defined in
   kernel/arch/$(ARCH)/*.c but used in kernel/ are in kernel/proto.h
 . /etc/make.conf included in makefiles and shell scripts that need to
   know the building architecture; it defines ARCH=<arch>, currently only
   i386.
 . some basic per-architecture build support outside of the kernel (lib)
 . in clock.c, only dequeue a process if it was ready
 . fixes for new include files

files deleted:
 . mpx/klib.s - only for choosing between mpx/klib86 and -386
 . klib86.s - only for 86

i386-specific files files moved (or arch-dependent stuff moved) to arch/i386/:
 . mpx386.s (entry point)
 . klib386.s
 . sconst.h
 . exception.c
 . protect.c
 . protect.h
 . i8269.c
2006-12-22 15:22:27 +00:00
Ben Gras
da42185e1c Removed verbose statements from vfs and mfs 2006-12-22 11:54:42 +00:00
Philip Homburg
8a2a957d49 Some 64-bit file offset changes that were left out accidentally in the first
commit.
2006-12-06 15:21:27 +00:00
Philip Homburg
bafc45a309 First cut at 64-bit file offsets in block devices for mkfs/fsck. 2006-11-27 14:21:43 +00:00
Philip Homburg
ca448f0b0f Getdents implementation in library/vfs/mfs.
Changed readdir, etc. to use getdents
2006-11-09 16:22:54 +00:00
Ben Gras
64dbdd855d obsolete server. 2006-11-01 16:53:45 +00:00
Ben Gras
86303b3024 Explicit conversion from O_ACCMODE to minix [RW]_BIT is clearer
and catches bogus values (such as 3).
2006-11-01 14:17:47 +00:00
Philip Homburg
0c1d433f60 rs changes (also use driver configurations in the image ramdisk) 2006-10-31 13:35:04 +00:00
Ben Gras
7195fe3325 System statistical and call profiling
support by Rogier Meurs <rogier@meurs.org>.
2006-10-30 15:53:38 +00:00
Ben Gras
fa0ba56bc9 Merge of VFS by Balasz Gerofi with Minix trunk. 2006-10-25 13:40:36 +00:00
Philip Homburg
7c0fda0932 Include kernel/priv.h for rs/manager.h 2006-10-25 13:07:58 +00:00
Ben Gras
1e656b349d . processes stay ZOMBIE, even after wait(), to avoid wrongly seeing them
as living processes  before they are cleaned up (fixes
  wait()/waitpid() hanging forever on previously-ZOMBIE processes)

. stop processes from running using sys_nice() with PRIO_STOP
  when a handled signal is delivered, before computing 
  stack locations for sys_sigsend(). (fixes race condition
  when runnable processes get signals, and e.g. get scheduled
  before FS sends a reply to unpause(), which can make the
  signal stack location wrong.)
2006-10-25 11:29:43 +00:00
Philip Homburg
f9ccfca2a1 (Incomplete) support for access control in PCI (pci_set_acl).
-script argument to service for crash recovery scripts
-config argument to service for driver resource configuration
restart command in service to restart a driver after a crash (for use in
crash recovery scripts).
down and refresh now take labels instead of pids.
verious changes in rs to make this work.
2006-10-20 15:01:32 +00:00
Philip Homburg
1ce2f75627 Additional ptrace commands for fault injection. 2006-10-20 14:14:08 +00:00
Ben Gras
cbfa0f4fb8 Change select() so that only as many words as necessary for the 'nfds'
argument from the fd bitmasks are copied from and back to userspace. This
solves an ABI dependency on OPEN_MAX. If nfds is too big for the current
OPEN_MAX, select() fails (but that's relatively easy to fix by 'just'
recompiling the system and not the application binaries), but if it's
smaller, binaries keep working.
2006-10-04 13:28:38 +00:00