This question isn't directly Samba related, but Samba has helped me figure
out part of the problem. When I CreateFile on an existing file like so:
CreateFile(FileName, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_DELETE, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
Samba shows that I have the file opened with this type of lock
DENY_NONE 0x20089 RDONLY
When the file is locked in this manner, I am unable to rename the file.
However, Windows launches executables over Samba shares with the lock:
DENY_WRITE 0x20 RDONLY
I have tried to mimic this lock using GENERIC_READ with FILE_SHARE_READ:
DENY_WRITE 0x20089 RDONLY
and with GENERIC_EXECUTE with FILE_SHARE_READ
DENY_WRITE 0x200a0 RDONLY
and by simply putting the constant value FILE_EXECUTE
DENY_WRITE 0xa0 RDONLY
It seems like something is automatically ORing in FILE_READ_ATTRIBUTES into my
desired_access, since FILE_EXECUTE is 0x20 and FILE_READ_ATTRIBUTES is 0x80.
My goal is simply to open a file, read only, deny write, but allowing others to
rename the file. Windows does this when you open an EXE and the lock is
DENY_WRITE 0x20 RDONLY
then file renames are possible.
Thank you for any information you can provide.
________________________________________
Jeremiah Lee Gowdy
Senior Software Engineer
FreedomVOICE Systems
E-mail: jeremiah@freedomvoice.com
Phone: 800-477-1477 Ext. 804
________________________________________
