Commit graph

1052 commits

Author SHA1 Message Date
Ben Gras
b480472a76 vm: full memory view
for user-space processes, increase text segment so it reaches the full
address space, so code can be executed anywhere.
2012-04-12 02:58:39 +02:00
Ben Gras
660e15b2d1 vm: break: allow brk() on any region
use the user-supplied point to lookup which region to perform brk() on,
and if it's a reasonable one, do it, no matter what vm's notion of the
heap region is.
2012-04-12 02:57:59 +02:00
David van Moolenbroek
928d76dbe8 Add VBFS: VirtualBox Shared Folder File System
Refer to "man vbfs" on how to mount it.
2012-04-11 00:27:48 +02:00
David van Moolenbroek
ef7b484e5c Create SFFS library out of HGFS
This Shared Folders File System library (libsffs) now contains all the
file system logic originally in HGFS. The actual HGFS server code is
now a stub that passes on all the work to libsffs. The libhgfs library
is changed accordingly.
2012-04-09 18:08:26 +02:00
David van Moolenbroek
09b327b042 HGFS: move all VMware-specific code into libhgfs 2012-04-09 17:32:36 +02:00
David van Moolenbroek
fa805ebd1e Kernel/servers/drivers: resolve a few warnings
Flagged by clang 3.1.
2012-03-30 16:55:06 +02:00
David van Moolenbroek
638ce89250 hgfs: subsecond timestamp precision
Slightly cleaned up version of patch contributed by Antoine Leca.
2012-03-30 01:40:07 +02:00
Ben Gras
204ae72525 retire _ANSI and <minix/ansi.h> 2012-03-25 21:58:27 +02:00
Ben Gras
db242ed39d retire _CONST, _VOLATILE, _SIZET, _ARGS, _VOID 2012-03-25 21:58:20 +02:00
Ben Gras
7336a67dfe retire PUBLIC, PRIVATE and FORWARD 2012-03-25 21:58:14 +02:00
Ben Gras
6a73e85ad1 retire _PROTOTYPE
. only good for obsolete K&R support
	. also remove a stray ansi.h and the proto cmd
2012-03-25 16:17:10 +02:00
David van Moolenbroek
b91295a8d2 vm: if mmap address is given, try that first
Previously, the mmap address (if given) was merely used as a lower
bound, and then possibly overriden with a hint. Now, the mapping is
first tried at the exact given address. If that fails, the start of
the mmap range is used as lower bound (which is then still overridden
by the hint for efficiency).

This allows two pages to be mapped in at predefined addresses, where
the second address is lower than the first. That was not possible.
2012-03-24 19:51:14 +01:00
Ben Gras
6af9856d4a libcompat_minix-centric cleanup
remove some old minix-userland-specific stuff

	. /etc/ttytab as a file, and minix-compat function (fftyslot()),
	  replaced by /etc/ttys and new libc functions
	. also remove minix-specific nlist(), cuserid(), fttyslot(), v8 regex
	  functions and <compat/regex.h>
	. and remaining minix-only utilities that use them
	. also unused <compat/pwd.h> and <compat/syslog.h> and
	  redundant <sys/sigcontext.h>
2012-03-16 17:06:24 +01:00
David van Moolenbroek
e8d2d2f6b6 libminc-related updates
- add files needed for acpi, ahci, fbd, vfs to libminc
- remove "-lc" from their respective makefiles
- remove setenv from libminc (requires initialization)
2012-03-12 23:16:45 +01:00
David van Moolenbroek
fecfd07997 mfs: more accurate stat.st_blocks estimation
On MFS file systems, the stat(2) call now counts indirect blocks as
part of the st_blocks calculation, in addition to proper initial
rounding of the file size. The returned value is now a true upper
bound on the actual number of 512-byte blocks allocated to the file.
As before, it is not accurate for sparse files.
2012-03-05 22:32:33 +01:00
David van Moolenbroek
075f839810 mfs: remove legacy stat code 2012-03-05 22:32:32 +01:00
Tomas Hruby
fb31513b00 LWIP,NETSOCK - lwip uses asynchronous protocol
- libnetsock - internal implementation of a socket on the lwip
  server side. it encapsulates the asynchronous protocol

- lwip server - uses libnetsock to work with the asynchronous
  protocol
2012-03-02 15:44:48 +00:00
Tomas Hruby
199e9c1907 LWIP fixed Makefile 2012-03-02 15:44:48 +00:00
Tomas Hruby
72b7abd1a1 VFS - no CANCEL for async non-blocking operations
- if an operation (R, W, IOCTL) is non blocking, a flag is set
  and sent to the device.

- nothing changes for sync devices

- asyn devices should reply asap if an operation is non-blocking.
  We must trust the devices, but we had to trust them anyway to
  reply to CANCEL correctly

- we safe sending CANCEL commands to asyn devices. This greatly
  simplifies the protocol. Asynchronous devices can always reply
  when a reply is ready and do not need to deal with other
  situations

- currently, none of our drivers use the flags since they drive
  virtual devices which do not block
2012-03-02 15:44:48 +00:00
Tomas Hruby
f19d8df184 VFS : simplification of handling asyn selects
- select_request_async() returns no ops by default

- wantops in do_select() always set correctly, do_select() does
  not need a special case for SUSPEND (and ugly code)
2012-03-02 15:44:48 +00:00
Tomas Hruby
369a12704f VFS - dev_style_asyn()
- dev_style_asyn() tests whether a device is asynchronous

 - simplifies code and helps readability
2012-03-02 15:44:47 +00:00
Tomas Hruby
35eb88461d VFS - cancel_nblock()
- duplicate code in dev_io() which sends CANCEL in case of a
  non-blocking operation moved to cancel_nblock()
2012-03-02 15:44:47 +00:00
Thomas Veerman
eb4096ccd1 iso9660: link with libc
Prevents assert("inited") in _env.c (libc) from triggering.
2012-02-22 15:17:20 +00:00
Thomas Veerman
1efb51b1de VFS: improve crashed FS resource cleanup
When VFS detects that an FS has crashed and tries to clean up
resources, it marks fairly late in the process that a vmnt is not
to be used again (to send requests to). This allows a thread to
become blocked on a vmnt after all blocked threads were stopped, but
before it finds out it shouldn't try to send to that vmnt.
2012-02-22 13:54:35 +00:00
Thomas Veerman
5ff845212e VFS: remove unused variables 2012-02-21 10:21:05 +00:00
Thomas Veerman
0c1cd8720a VFS: fix last_dir not returning last directory
If the provided path was only a single component (i.e., without
slashes), then last_dir would return early and skip the symlink
detection (i.e., check whether the path ends in a symlink and resolve
that first before returning). This bug triggered an assert in open
which expects that an advance after an last_dir (with VMNT_WRITE lock)
does not yield another vmnt lock.
2012-02-21 10:21:05 +00:00
Thomas Veerman
230ea1ce13 VFS: remove erroneous assert
The assert was meant as an additional check to the assert in link.c:198.
The reasoning behind the assert in link.c:198 is that once you've
obtained a write lock on a vmnt, you can't get an additional read lock
on the same vmnt. However, that does not always hold for the assert in
path.c:281 where the situation could be that you've obtained a read lock
and managed to get another read lock (this is possible). In other words,
the assert in path.c:281 is not the right place to check for that
situation.
2012-02-20 09:17:42 +00:00
Thomas Veerman
c540bcb001 VFS: various select fixes
- Fix locking bug when unable to send DEV_SELECT request. Upon failure
  VFS tried to cancel the select operation, but this failed due to trying
  to lock a filp that was already locked to send the request in the first
  place. Do_select_request now handles locking of filps itself instead of
  relying on the caller to do it.  This fixes a crash when killing INET.
- Fix failure to revive a process after a non-blocking select operation
  yielded no ready select operations when replying DEV_SEL_REPL1.
- Improve readability by using OK, SUSPEND, and standard error values as
  results instead of having separate macros in select.
- Don't print not having a driver for a major device; after killing a driver
  select will trigger this printf.
2012-02-17 21:09:07 +00:00
Arun Thomas
5d958f894f servers: fix clang warnings in iso9660fs and vm 2012-02-17 16:48:40 +01:00
Arun Thomas
ff56906879 Remove obsolete INSTALLFLAGS from makefiles 2012-02-16 23:26:38 +01:00
Antoine Leca
3fb8cb760c More cleaning up 2012-02-15 19:04:58 +00:00
Ben Gras
47c1f10835 re-enable update-superblock check
This reverts commit cdbc4bfb13.
2012-02-15 03:46:01 +01:00
Ben Gras
2fe8fb192f Full switch to clang/ELF. Drop ack. Simplify.
There is important information about booting non-ack images in
docs/UPDATING. ack/aout-format images can't be built any more, and
booting clang/ELF-format ones is a little different. Updating to the
new boot monitor is recommended.

Changes in this commit:

	. drop boot monitor -> allowing dropping ack support
	. facility to copy ELF boot files to /boot so that old boot monitor
	  can still boot fairly easily, see UPDATING
	. no more ack-format libraries -> single-case libraries
	. some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases
	. drop several ack toolchain commands, but not all support
	  commands (e.g. aal is gone but acksize is not yet).
	. a few libc files moved to netbsd libc dir
	. new /bin/date as minix date used code in libc/
	. test compile fix
	. harmonize includes
	. /usr/lib is no longer special: without ack, /usr/lib plays no
	  kind of special bootstrapping role any more and bootstrapping
	  is done exclusively through packages, so releases depend even
	  less on the state of the machine making them now.
	. rename nbsd_lib* to lib*
	. reduce mtree
2012-02-14 14:52:02 +01:00
Thomas Veerman
80c4685324 VFS: replace VFS with AVFS 2012-02-13 16:53:21 +00:00
Thomas Veerman
0c99f4f4b7 AVFS: reinitialize lookup object before reuse 2012-02-10 09:50:21 +00:00
Thomas Veerman
972a791882 AVFS/APFS: small cleanup 2012-02-09 16:33:24 +00:00
Thomas Veerman
abd6043a2f AVFS: fix various system call interruption issues
- When cancelling ioctls, VFS did not remember which file descriptor
   to cancel and sent bogus to the driver.
 - Select state was not cleaned up when select()ing process was
   interrupted.
 - Process trying to do a system call at the exact same time as a user
   trying to interrupt the process, could cause the system call worker
   thread to overwrite state belonging to the worker thread trying to
   exit the process. This led to hanging threads and eventual system hang
   when this happens often enough.
2012-02-09 14:24:28 +00:00
Thomas Veerman
4498750810 libchardriver: fix open reply for async devices 2012-02-09 14:17:54 +00:00
Ben Gras
cc1ae59c9b -lminixutil link fixes
. not available and not needed for clang
2012-02-06 16:08:29 +01:00
Ben Gras
1eea0f5680 inet: strncmp() fix 2012-02-03 14:49:18 +01:00
Ben Gras
cdbc4bfb13 temporarily disable update-superblock check
. incompatible with installboot -d FSDEV on mounted filesystems
	. should be re-enabled when netbsd boot loader is default
2012-02-02 15:04:51 +01:00
Thomas Veerman
b33f504e8f APFS: fix link issue when compiling with Clang 2012-02-02 15:00:01 +00:00
Thomas Veerman
a65ff8a1aa INET: fix 'improved' assert 2012-02-02 11:53:52 +00:00
Thomas Veerman
224a0f6e90 INET: fix a few GCC compilation warnings 2012-02-01 13:24:28 +00:00
Thomas Veerman
4d3a0887b4 AVFS: only put mount point when it was used as one
When a mount operation fails and the FS exits, free_proc could try and
clean up resources associated with the mount point before the mount
thread itself can do that. However, the clean up procedure should only
clean up resources that were actually in use.
2012-02-01 13:22:53 +00:00
Thomas Veerman
a87ec6840f INET: remove erroneous assert
The queue may contain established connections which have
tc_connInprogress clear.
2012-01-30 16:09:08 +00:00
Thomas Veerman
1ff24e3f2f Don't panic on a misconfigured machine 2012-01-30 15:16:20 +00:00
Thomas Veerman
1fc399a5c1 Add permission test for bind and socket
Also, apply forbidden patch to VFS from AVFS (fixes hanging test56 if
it has the permission test).
2012-01-30 15:16:20 +00:00
Thomas Veerman
9330d92639 INET: drop privileges upon startup 2012-01-30 15:16:20 +00:00
Thomas Veerman
becf700bc2 APFS: drop privileges upon startup
Move SERVICE_LOGIN to rs.h global header so it's accessible for all.
2012-01-30 15:16:20 +00:00