[Samba] /proc/self open fails with proc_owner Was: Time-machine replies with 17: File Exists

[Jorgen Lundman]

Digging deeper, I’ve found that basic SMB access does not work well, in that I can copy a file to smb, which writes OK, then it renames it into place, but eventually fail with ACCESS_DENIED.

fruit_close: Path [Pictures/iphonejorgen/2021/05/IMG_6011.MOV] fd [11]
streams_xattr_close: streams_xattr_close called [Pictures/iphonejorgen/2021/05/IMG_6011.MOV] fd [11]
delete_lock_ref_count for file Pictures/iphonejorgen/2021/05/IMG_6011.MOV
Error opening file Pictures/iphonejorgen/2021/05/IMG_6011.MOV (NT_STATUS_ACCESS_DENIED) (local_flags=129) (flags=129)
create_file_unixpath: NT_STATUS_ACCESS_DENIED
dbwrap_lock_order_lock: check lock order 1 for /usr/local/samba/var/lock/smbXsrv_open_global.tdb
lock order:  1:/usr/local/samba/var/lock/smbXsrv_open_global.tdb 2:<none> 3:<none> 4:<none>
db_tdb_log_key: Locking key BBF82F32
db_tdb_fetch_locked_internal: Allocated locked data 57d210
db_tdb_log_key: Unlocking key BBF82F32
dbwrap_lock_order_unlock: release lock order 1 for /usr/local/samba/var/lock/smbXsrv_open_global.tdb
freed files structure 1684966950 (0 used)
create_file: NT_STATUS_ACCESS_DENIED

Running truss on smb to find out what actually goes wrong, it appears to be:

streams_xattr_open called for /proc/self/fd/11 with flags 0x81
6036/1:         write(1, " s t r e a m s _ x a t t".., 63)      = 63
6036/1:         open("/proc/self/fd/11", O_WRONLY|O_NONBLOCK)   Err#13 EACCES [proc_owner]
catia_fetch_fsp_post_next: Called from [catia_openat]
6036/1:         write(1, " c a t i a _ f e t c h _".., 54)      = 54

Which is presumably OmniOS related, in that it is trying to open the /proc/self/ as a different uid to the process. Can I tell
Smb to not use /proc/self, and instead use regular paths?

If I comment out catia, then the next module (streams_xattr) has the same problem.


Lund