Tomas Hruby [Tue, 15 Sep 2009 10:01:06 +0000 (10:01 +0000)]
Some clean up of the segment selectors macros
- [ABCD]_INDEX are not used anywhere
- value of *_SELECTOR is now calculated using the *_INDEX value so changing the
index does not break the selector
- TSS is now the last of the global selectors. There will be TSS per CPU on SMP
and the number will vary depending on the maximal supported number of CPUs
configured
Tomas Hruby [Tue, 15 Sep 2009 09:57:22 +0000 (09:57 +0000)]
proc_addr() returns address based on location in proc array
- pproc_addr is not neccessary to get the address of a process if we know its
number
- local proc variables in system calls implementation (sys_task) conflicts with
the global proc array of all process, therefore the variable were renamed to
proc_nr as they hold the process number
Disabled check in test 28 which hard links a directory; this is nott required by POSIX and not supported (currently) by MINIX. Also corrected total number of tests.
Allow setuid tests 11 and 33 to run. The former still fails (but now with a meaningful error) while the latter succeeds. Only 2 tests are left borken on default MINIX, namely 11 and 28.
Thomas Veerman [Thu, 3 Sep 2009 09:38:27 +0000 (09:38 +0000)]
- Added netconf script which makes it a lot easier to change network settings.
- Modified the setup script to use the netconf script for the network
configuration:
- Moved step 2 to step 8 and renamed the steps in between.
- Autopart adapted to print step 3 instead of step 4.
Tomas Hruby [Sun, 30 Aug 2009 14:55:30 +0000 (14:55 +0000)]
system_init() renamed to arch_init()
- a better name for architecture specific init function
- some of x86 init code must execute in protected mode
- prot_init() removed from this function and still called in cstart() Imho this
should be called from the architecture specific assembly not cstart. cstart
perform Minix monitor specific tasks and will be touched once another
bootloader is in use, e.g. booting via tftp, therefore we keep it as is for
now.
- this is a backport from the SMP code which requires this. Merging will be simpler
Tomas Hruby [Sat, 29 Aug 2009 19:26:46 +0000 (19:26 +0000)]
saved_proc in exception() may be NULL
If an exception happens in kernel while the kernel is booting and no processes
are running yet, saved_proc == NULL and priting any process related information
results in dumping rubish.
This check is mostly useful when debugging kernel stuff. Should _never_ happen
on a production kernel.
Thomas Veerman [Tue, 18 Aug 2009 11:36:01 +0000 (11:36 +0000)]
Added a hack to start binaries from the boot image only. In particular, setting
bin_img=1 in the boot monitor will make sure that during the boot procedure the
mfs binary that is part of the boot image is the only binary that is used to
mount partitions. This is useful when for some reason the mfs binary on disk
malfunctions, rendering Minix unable to boot. By setting bin_img=1, the binary
on disk is ignored and the binary in the boot image is used instead.
- 'service' now accepts an additional flag -r. -r implies -c. -r instructs RS
to first look in memory if the binary has already been copied to memory and
execute that version, instead of loading the binary from disk. For example,
the first time a MFS is being started it is copied (-c) to memory and
executed from there. The second time MFS is being started this way, RS will
look in memory for a previously copied MFS binary and reuse it if it exists.
- The mount and newroot commands now accept an additional flag -i, which
instructs them to set the MS_REUSE flag in the mount flags.
- The mount system call now supports the MS_REUSE flag and invokes 'service'
with the -r flag when MS_REUSE is set.
- /etc/rc and the rc script that's included in the boot image check for the
existence of the bin_img flag in the boot monitor, and invoke mount and
newroot with the -i flag accordingly.
Thomas Veerman [Wed, 12 Aug 2009 19:57:37 +0000 (19:57 +0000)]
- Moved (u)mount prototypes from unistd.h to sys/mount.h.
- Prepared mount system call to accept multiple mount flags
instead of just read_only (however, it remains backwards
compatible).
- Updated the man mount(2) to reflect new header file usage.
- Updated badblocks, newroot, mount, and umount commands to use the
new header file.
Thomas Veerman [Tue, 14 Jul 2009 09:39:05 +0000 (09:39 +0000)]
Fixed a minor select bug:
- When one does a select on a file descriptor that is meaningless for that particular file type, select shall indicate that the file descriptor is ready for that particular operation and that the file descriptor has no exceptional condition pending.
Miscellaneous PM fixes:
o Don't call vm_willexit() more than once upon normal process exit
o Correct two cases of indenting of the no-discussion-possible kind
o Perform slightly stricter ptrace(2) checks:
- process calling ptrace must be target process's parent
- process must call wait/waitpid before using ptrace on stopped child
- no ptrace on zombies
o Allow user processes to use ptrace(T_STOP) to stop an active child
Kernel:
o Remove s_ipc_sendrec, instead using s_ipc_to for all send primitives
o Centralize s_ipc_to bit manipulation,
- disallowing assignment of bits pointing to unused priv structs;
- preventing send-to-self by not setting bit for own priv struct;
- preserving send mask matrix symmetry in all cases
o Add IPC send mask checks to SENDA, which were missing entirely somehow
o Slightly improve IPC stats accounting for SENDA
o Remove SYSTEM from user processes' send mask
o Half-fix the dependency between boot image order and process numbers,
- correcting the table order of the boot processes;
- documenting the order requirement needed for proper send masks;
- warning at boot time if the order is violated
RS:
o Add support in /etc/drivers.conf for servers that talk to user processes,
- disallowing IPC to user processes if no "ipc" field is present
- adding a special "USER" label to explicitly allow IPC to user processes
o Always apply IPC masks when specified; remove -i flag from service(8)
o Use kernel send mask symmetry to delay adding IPC permissions for labels
that do not exist yet, adding them to that label's process upon creation
o Add VM to ipc permissions list for rtl8139 and fxp in drivers.conf
Left to future fixes:
o Removal of the table order vs process numbers dependency altogether,
possibly using per-process send list structures as used for SYSTEM calls
o Proper assignment of send masks to boot processes;
some of the assigned (~0) masks are much wider than necessary
o Proper assignment of IPC send masks for many more servers in drivers.conf
o Removal of the debugging warning about the now legitimate case where RS's
add_forward_ipc cannot find the IPC destination's label yet
Arun Thomas [Sat, 30 May 2009 09:31:19 +0000 (09:31 +0000)]
Release.sh now uses packages.install and package_sources.install to
determine which packages and package sources to include on the
installation media, as opposed to including everything in the
PACKAGEDIR AND PACKAGESOURCEDIR directories.