59315b183d
[kernel] Fix reading from empty board buffer (sf63.2)
...
Syscall 63.2, reading from the board buffer, was overwriting registers
edx and ebp when the buffer was empty. Now it sets eax and ebx according
to the kernel API.
Because of this ancient bug BOARD checks the status of sf63.2 syscall
this way:
mcall 63, 2
cmp ebx, 1
jne no_data
; when the buffer is empty, ebx is untouched, i.e. still 2, haha
; edx and ebp are destroyed, the code is lucky not to use them
By the way, the bug was found using umka tool.
git-svn-id: svn://kolibrios.org@9897 a494cfbc-eb01-0410-851d-a64ba20cac60
2023-01-30 03:33:03 +00:00
a9d195b964
Rename fields in SYSCALL_STACK struct: _eax -> eax, etc
...
git-svn-id: svn://kolibrios.org@9831 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-06-05 14:41:51 +00:00
Doczom
4b862c1c0b
KERNEL: reducing the use of current_slot_idx
...
git-svn-id: svn://kolibrios.org@9828 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-06-03 23:34:04 +00:00
aa4154894c
[kernel] Add is_string_userspace func, like is_region_userspace
...
git-svn-id: svn://kolibrios.org@9823 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-05-31 07:27:00 +00:00
Doczom
0e38558cb0
fix bug in free group of port(46 sysf) in deleting thread
...
git-svn-id: svn://kolibrios.org@9743 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-03-19 16:20:29 +00:00
Doczom
8708293b8f
small update 46 system function(no tested!)
...
git-svn-id: svn://kolibrios.org@9742 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-03-18 04:09:59 +00:00
Doczom
182f6ade61
small update copyright year in kernel
...
git-svn-id: svn://kolibrios.org@9715 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-02-12 17:27:41 +00:00
Doczom
39780d1f65
delete APPDATA.mem_start
...
git-svn-id: svn://kolibrios.org@9710 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-02-09 18:09:54 +00:00
Doczom
707dc7c2e6
delete TASKDATA
...
git-svn-id: svn://kolibrios.org@9709 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-02-09 17:07:51 +00:00
Doczom
19347417f0
replacing TASK DATA.pid with APPDATA.tid
...
git-svn-id: svn://kolibrios.org@9692 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-02-06 20:33:29 +00:00
Doczom
4afc0dd84b
replacing TASKDATA.event_mask with APPDATA.event_mask and cleared code
...
git-svn-id: svn://kolibrios.org@9614 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-01-11 20:38:19 +00:00
Doczom
df70a59fd5
add APPDATA.state for delete TASKDATA
...
git-svn-id: svn://kolibrios.org@9613 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-01-11 10:50:30 +00:00
Doczom
2470cf023c
add APPDATA.state for delete TASKDATA
...
git-svn-id: svn://kolibrios.org@9612 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-01-10 22:29:14 +00:00
Doczom
b1621a3797
add APPDATA.wnd_number
...
git-svn-id: svn://kolibrios.org@9608 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-01-10 16:52:37 +00:00
Doczom
2aee4bdf6a
replacing TASKDATA.mem_start with APPDATA.memstart
...
git-svn-id: svn://kolibrios.org@9605 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-01-09 11:37:32 +00:00
Doczom
2db4916440
fix cpu_usage
...
git-svn-id: svn://kolibrios.org@9592 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-01-08 01:28:53 +00:00
Doczom
3d6209fb37
fix cpu_usage
...
git-svn-id: svn://kolibrios.org@9591 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-01-07 23:03:51 +00:00
Doczom
bb2c454ebe
replacing TASKDATA.cpu_usage with APPDATA.cpu_usage
...
git-svn-id: svn://kolibrios.org@9590 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-01-07 21:53:56 +00:00
Doczom
db7f673018
add 3 constants
...
git-svn-id: svn://kolibrios.org@9571 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-01-04 18:51:19 +00:00
f12d4adc7d
[KERNEL] - removed commented outdated read_floppy_file function
...
- removed setmouse function that doesnt do anything
- redmousepos moved from kernel.asm to gui/mouse.inc
- small style fixes
git-svn-id: svn://kolibrios.org@9514 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-12-28 15:19:24 +00:00
c0671d602c
[KERNEL] kernel.asm: clean commented outdated stuff, fix prior
...
git-svn-id: svn://kolibrios.org@9488 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-12-27 15:42:05 +00:00
c8ddc27015
[KERNEL] Sysfn 15, 25, 39 (working with background graphics) moved from kernel.asm to gui/background.inc file
...
git-svn-id: svn://kolibrios.org@9486 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-12-27 15:34:18 +00:00
f7761a485b
[KERNEL] Move sysfn 1, 4, 13, 38 implementations from kernel.asm to window.inc
...
Fix comments style in window.inc
Cleanup some outdated & unused commented stuff in data32.inc
git-svn-id: svn://kolibrios.org@9477 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-12-26 13:18:33 +00:00
d92af710b5
[KERNEL] Use common stub undefined_syscall instead of paleholder
...
git-svn-id: svn://kolibrios.org@9476 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-12-26 11:12:56 +00:00
3d99a055b8
[KERNEL] Add sysfn 39.3 - copy rect of background image to buffer.
...
Previously was only 39.2 that reads one pixel from background image.
(39.2 is shomehow useless due to big context switching overhead if you trying to read some area of pixels using 39.2)
git-svn-id: svn://kolibrios.org@9458 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-12-22 17:10:59 +00:00
Doczom
4003f26194
delete 43 sysfunction
...
git-svn-id: svn://kolibrios.org@9279 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-11-16 18:54:17 +00:00
Doczom
7fa9473c69
small clean code
...
git-svn-id: svn://kolibrios.org@9268 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-11-14 19:15:56 +00:00
Magomed Kostoev (mkostoevr)
0b73fe657f
[KERNEL] Add test framework
...
git-svn-id: svn://kolibrios.org@9249 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-11-04 23:52:56 +00:00
Doczom
4f072de650
update
...
git-svn-id: svn://kolibrios.org@9224 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-10-23 17:11:57 +00:00
Doczom
4f59e32470
fix bug in my fix bug
...
git-svn-id: svn://kolibrios.org@9223 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-10-23 16:05:08 +00:00
Doczom
bb36197cd2
fix bug http://bugs.kolibrios.org/view.php?id=145 in sf 4
...
git-svn-id: svn://kolibrios.org@9222 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-10-23 15:53:35 +00:00
83176ac8ef
kernel: Fix window redraw after 1px move.
...
If
- window A is above window B, and
- window A has been moved,
then window B receives a redraw event.
But if that move was 1px right or down, window B didn't receive an event
because of off-by-one error. Now it's fixed.
git-svn-id: svn://kolibrios.org@9221 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-10-18 16:23:18 +00:00
954246b1b7
Merge kolibri-ahci into trunk
...
git-svn-id: svn://kolibrios.org@9183 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-09-09 11:38:38 +00:00
b6f769987c
kernel: Check for base+len overflow in is_region_userspace
...
git-svn-id: svn://kolibrios.org@9045 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-07-09 09:22:44 +00:00
Magomed Kostoev (mkostoevr)
a7ae55240b
[asmxygen] Test doxygen generation on is_region_userspace() function
...
git-svn-id: svn://kolibrios.org@8962 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-06-29 09:37:40 +00:00
0f675e4534
[KERNEL] use constants instead of hardcoded values, other small fixes
...
git-svn-id: svn://kolibrios.org@8876 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-06-19 08:41:09 +00:00
2359531a17
[KERNEL] #3 Preparing to merge legacy TASKDATA into APPDATA:
...
- get rid of CURRENT_TASK
- to APPDATA added new fields which will be used instead of TASKDATA's
- other small fixes
git-svn-id: svn://kolibrios.org@8869 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-06-17 09:41:16 +00:00
d4bf03befc
[KERNEL] #2 Preparing to merge legacy TASKDATA into APPDATA:
...
- rename event_mask in APPDATA to occured_events, cause TASKDATA already has event_mask and they have different meaning and usage
- small fixes
git-svn-id: svn://kolibrios.org@8867 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-06-16 13:57:17 +00:00
9cdec89085
[KERNEL] Preparing to merge legacy TASKDATA into APPDATA:
...
- now doesnt use TASK_COUNT, now uses [thread_count] global instead of it
- update come copyrights
git-svn-id: svn://kolibrios.org@8866 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-06-16 10:04:10 +00:00
f3f40df401
[KERNEL] Refactoring:
...
- optimize struct zeroing in sys32.inc
- set_app_param: delete setting completely unused APPDATA.event_filter (also make this field reserved)
- update some copyringhs
- other small fixes
git-svn-id: svn://kolibrios.org@8858 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-06-15 16:24:33 +00:00
Doczom
c080568a52
fixed vulnerability (kernel memory rewrite) in sysfn 4
...
git-svn-id: svn://kolibrios.org@8715 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-05-09 14:17:55 +00:00
Doczom
5376120685
fixed vulnerability (reading kernel memory from userspace) in sysfn 7, 15.5 and 65
...
git-svn-id: svn://kolibrios.org@8714 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-05-09 14:02:32 +00:00
Doczom
da3163d11b
fixed vulnerability (reading kernel memory from userspace) in sysfn 47
...
git-svn-id: svn://kolibrios.org@8713 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-05-09 13:27:00 +00:00
c7a8498e42
fixed vulnerability (reading kernel memory from userspace) in sysfn25
...
git-svn-id: svn://kolibrios.org@8675 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-04-22 19:59:52 +00:00
d82e0a30b4
fixed vulnerabilities in sysfn 18.11 and 36, now user applications cannot corrupt kernel memory via invalid buffer address
...
git-svn-id: svn://kolibrios.org@8598 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-02-21 09:59:47 +00:00
906e6d8dce
is_region_userspace: removed extra condition which caused incorrect behavior of boxlib menu in hexedit and rtfread (cuz it uses address 0 i didnt know:D )
...
git-svn-id: svn://kolibrios.org@8493 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-12-29 13:45:08 +00:00
7b4bf97ec8
is_region_userspace: refactoring and fix
...
git-svn-id: svn://kolibrios.org@8329 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-12-05 19:56:25 +00:00
673259b909
kernel: Protect OS threads from terminating by sf18.2.
...
git-svn-id: svn://kolibrios.org@8270 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-11-28 12:57:10 +00:00
af4695e15c
fix return value from .addr_error in sysfn 26.2 , 9
...
git-svn-id: svn://kolibrios.org@8249 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-11-24 14:20:23 +00:00
2a0073bdfb
fix prior
...
git-svn-id: svn://kolibrios.org@8248 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-11-24 13:27:11 +00:00
