search for: get_nt_acl

Two attached patches for samba 2.2.7a and 3.0-alfa22, that I've made today, fix 3 bugs mentioned in my previous e-mail. 1) For each file in addition to ALLOW ACE proper DENY ACE is created. 2) "Take ownership" is shown DENIED for all except root ACEs 3) Read Permissions and read attributes are always shown as allowed, as they are actually allowed. -- Zhitomirsky

Hello , the described bellow happens both in samba 2.2.7a and 3.0-alfa22. First bug: As it is easy to check smbd , when asked about ACL entry of a file never sends to the client OS DENY Access Control Entries , only ALLOW. so for example for a XFS file with acl: # owner: a user::r-- group::rwx other::rwx Win2K security tab shows for user "a": Read & exec =

...cking.c:print_share_mode_table(498) print_share_mode_table: share_mode_entry[0]: pid = 10924, share_access = 0x3, private_options = 0x0, access_mask = 0x20000, mid = 0x0, type= 0x0, file_id = 15253, uid = 501, flags = 2, dev = 0xfd02, inode = 212042139 [2015/02/02 18:34:15, 10] smbd/posix_acls.c:get_nt_acl(2768) get_nt_acl: called for file tax/2014/gttsc [2015/02/02 18:34:15, 5] smbd/posix_acls.c:get_nt_acl(2805) get_nt_acl : file ACL absent, directory ACL absent [2015/02/02 18:34:15, 10] smbd/posix_acls.c:canonicalise_acl(2244) canonicalise_acl: Access ace entries before arrange : [2015/02/02...

...ranted. > [2005/07/16 00:57:12, 5] smbd/files.c:file_new(129) > allocated file structure 4497, fnum = 8593 (1 used) > [2005/07/16 00:57:12, 5] smbd/open.c:open_file_stat(1707) > open_file_stat: 'opening' file .//SambaDomain.reg > [2005/07/16 00:57:12, 5] smbd/posix_acls.c:get_nt_acl(2693) > get_nt_acl : file ACL absent, directory ACL absent > [2005/07/16 00:57:12, 3] > passdb/lookup_sid.c:fetch_sid_from_uid_cache(159) > fetch sid from uid cache 501 -> > S-1-5-21-*********-*********-*********-2002 > [2005/07/16 00:57:12, 3] > passdb/lookup_sid.c:fetc...

...ess this is > > caused by an mechanism to derive an NT ACL from the mode. Is there any > > possibility to skip Samba's permission checks? > > Not really anymore. What you could do is provide a vfs module that > returns a "Everyone is allowed everything" ACL in the get_nt_acl call. > It would of course be much better to get a proper mapping. What do > your ACLs look like? > Thanks for clarifying. We use NFSv4 compliant ACLs that can be accessed via the nfs4-acl-tools. I found the existing NFSv4 ACL VFS module in Samba (nfs4acl_xattr), which seems to be build...

...h=<./> dontdescend=<> [2006/01/31 20:03:42, 5] smbd/files.c:file_new(139) allocated file structure 990, fnum = 5086 (1 used) [2006/01/31 20:03:42, 5] smbd/open.c:open_file_stat(2111) open_file_stat: 'opening' file .//txtfile???.txt [2006/01/31 20:03:42, 10] smbd/posix_acls.c:get_nt_acl(2732) get_nt_acl: called for file .//txtfile???.txt [2006/01/31 20:03:42, 5] lib/util_seaccess.c:se_access_check(308) se_access_check: access (1) granted. [2006/01/31 20:03:42, 8] smbd/trans2.c:get_lanman2_dir_entry(1076) get_lanman2_dir_entry:readdir on dirptr 0x8380b28 now at offset -1 [200...

Hi all, I am wondering if there is a way to bypass Samba's ACL checks and delegate access control completely to the underlying file system. My problem arises from the following scenario: Our file system implements ACLs that are to the best of my knowledge currently not readable by any of the existing VFS modules. When trying to access a file with an ACL going beyond the file's POSIX

Whenever I try to read or modify ACLs from my Windows 2000 PDC, my Samba Domain Member Server (Security = ADS) does not allow setting ACLs, nor does it display the existing ACLs. - I have setup ACLs in my Kernel - I have translated and installed libacl and libattr - I can see and modify ACLs with getfacl and setfacl. - I have translated Samba 3.0.23d with --with-acl-support=yes - I have enabled

...smbd(unbecome_root+0xb) [0x80ad84b] Sep 21 07:40:51 server smbd[8525]: #7 smbd(local_uid_to_sid+0x10b) [0x816c26b] Sep 21 07:40:51 server smbd[8525]: #8 smbd(uid_to_sid+0x10a) [0x817194a] Sep 21 07:40:51 server smbd[8525]: #9 smbd [0x80b8a6f] Sep 21 07:40:51 server smbd[8525]: #10 smbd(get_nt_acl+0x28a) [0x80bc06a] Sep 21 07:40:51 server smbd[8525]: #11 smbd [0x8095045] Sep 21 07:40:51 server smbd[8525]: #12 smbd(reply_nttrans+0x927) [0x80970b7] Sep 21 07:40:51 server smbd[8525]: #13 smbd [0x80be5da] Sep 21 07:40:51 server smbd[8525]: #14 smbd [0x80be68e] Sep 21 07:40:51 server...

...mba/sbin/smbd(unbecome_root+0xb) [0x80db843] #8 /usr/local/samba/sbin/smbd [0x82055db] #9 /usr/local/samba/sbin/smbd(pdb_uid_to_rid+0x25) [0x8204f7c] #10 /usr/local/samba/sbin/smbd(uid_to_sid+0x10a) [0x820a7d5] #11 /usr/local/samba/sbin/smbd [0x80ebee8] #12 /usr/local/samba/sbin/smbd(get_nt_acl+0x386) [0x80f0c88] #13 /usr/local/samba/sbin/smbd(vfswrap_fget_nt_acl+0x17) [0x80e98e7] #14 /usr/local/samba/sbin/smbd [0x80b273b] #15 /usr/local/samba/sbin/smbd [0x80b4b36] #16 /usr/local/samba/sbin/smbd(reply_nttrans+0x85f) [0x80b54e4] #17 /usr/local/samba/sbin/smbd [0x80f716e]...

...0x5d) [0xb7d7d8cd] #2 /usr/sbin/smbd [0xb7d83d9e] #3 /usr/sbin/smbd [0xb7beed2c] #4 /usr/sbin/smbd(pop_sec_ctx+0xa2) [0xb7beeec2] #5 /usr/sbin/smbd(unbecome_root+0x17) [0xb7be2587] #6 /usr/sbin/smbd(gid_to_sid+0x15c) [0xb7d339bc] #7 /usr/sbin/smbd [0xb7bf58fc] #8 /usr/sbin/smbd(get_nt_acl+0x4ac) [0xb7bfc0cc] #9 /usr/sbin/smbd [0xb7c123bb] #10 /usr/sbin/smbd(is_visible_file+0x2a0) [0xb7b9a030] #11 /usr/sbin/smbd [0xb7b9a75d] #12 /usr/sbin/smbd(dptr_ReadDirName+0x51) [0xb7b9a7c1] #13 /usr/sbin/smbd [0xb7bd3a71] #14 /usr/sbin/smbd [0xb7bd7e45] #15 /usr/sbin/smbd(ha...

...to derive an NT ACL from the mode. Is there > any > > > > possibility to skip Samba's permission checks? > > > > > > Not really anymore. What you could do is provide a vfs module that > > > returns a "Everyone is allowed everything" ACL in the get_nt_acl call. > > > It would of course be much better to get a proper mapping. What do > > > your ACLs look like? > > > > > > > Thanks for clarifying. We use NFSv4 compliant ACLs that can be accessed > via > > the nfs4-acl-tools. > > So the only support...

...echanism to derive an NT ACL from the mode. Is > > > there any > > > possibility to skip Samba's permission checks? > > > > Not really anymore. What you could do is provide a vfs module that > > returns a "Everyone is allowed everything" ACL in the get_nt_acl > > call. > > It would of course be much better to get a proper mapping. What do > > your ACLs look like? > > > > Thanks for clarifying. We use NFSv4 compliant ACLs that can be > accessed via > the nfs4-acl-tools. > > I found the existing NFSv4 ACL VFS m...

On two Samba 4.4.2/4.4.3 member servers, "samba-tool ntacl get --as-sddl" gives the following error: ERROR: Unable to read domain SID from configuration files Which configuration files is it referring to? Without "--as-sddl" the command gives a correct output. It would be nice to get the permissions in sddl format... The same command works as expected on two AC DCs.

...3) PANIC: internal error [2004/11/29 21:44:52, 0] lib/util.c:smb_panic2(1411) BACKTRACE: 14 stack frames: #0 /usr/sbin/smbd(smb_panic2+0x111) [0x81d8541] #1 /usr/sbin/smbd(smb_panic+0x1a) [0x81d842a] #2 /usr/sbin/smbd [0x81c5f58] #3 /lib/tls/libc.so.6 [0xc06f48] #4 /usr/sbin/smbd(get_nt_acl+0xba9) [0x80cf089] #5 /usr/sbin/smbd [0x809bad4] #6 /usr/sbin/smbd(reply_nttrans+0x9df) [0x809e00f] #7 /usr/sbin/smbd [0x80d1a76] #8 /usr/sbin/smbd [0x80d1d00] #9 /usr/sbin/smbd(process_smb+0x8c) [0x80d1f0c] #10 /usr/sbin/smbd(smbd_process+0x168) [0x80d2c48] #11 /usr/sbin/smbd(...

...pop_sec_ctx+0xa2) [0x800a6ac2] Sep 9 10:32:29 SOS14UF smbd[27889]: #5 smbd(unbecome_root+0x17) [0x8009bc97] Sep 9 10:32:29 SOS14UF smbd[27889]: #6 smbd(gid_to_sid+0x10e) [0x801dfcde] Sep 9 10:32:29 SOS14UF smbd[27889]: #7 smbd [0x800af1cc] Sep 9 10:32:29 SOS14UF smbd[27889]: #8 smbd(get_nt_acl+0x4c0) [0x800b5470] Sep 9 10:32:29 SOS14UF smbd[27889]: #9 smbd(vfswrap_fget_nt_acl+0x2b) [0x800aa45b] Sep 9 10:32:29 SOS14UF smbd[27889]: #10 smbd(is_visible_file+0x2ca) [0x8005910a] Sep 9 10:32:29 SOS14UF smbd[27889]: #11 smbd [0x8005966d] Sep 9 10:32:29 SOS14UF smbd[27889]: #12 s...

...8 sys_acl_get_entry 19 sys_acl_get_tag_type 20 sys_acl_get_permset 21 sys_acl_get_perm 22 sys_acl_get_perm 23 sys_acl_get_entry 24 sys_acl_get_tag_type 25 sys_acl_get_permset 26 sys_acl_get_perm 27 sys_acl_get_perm 28 sys_acl_get_entry 29 sys_acl_free_acl 30 fget_nt_acl T01/T01.ini 31 getxattr T01/T01.ini:user.DOSATTRIB 32 closedir 33 stat T01/T01.ini 34 stat T01 35 getxattr T01/T01.ini:user.DOSATTRIB 36 open r T01/T01.ini 37 ke...

...fchmod */ NULL, /* chown */ NULL, /* fchown */ NULL, /* chdir */ NULL, /* getwd */ NULL, /* utime */ NULL, /* ftruncate */ NULL, /* lock */ NULL, /* symlink */ NULL, /* readlink */ NULL, /* link */ NULL, /* mknod */ NULL, /* realpath */ NULL, /* fget_nt_acl */ NULL, /* get_nt_acl */ NULL, /* fset_nt_acl */ NULL, /* set_nt_acl */ NULL, /* chmod_acl */ NULL, /* fchmod_acl */ NULL, /* sys_acl_get_entry */ NULL, /* sys_acl_get_tag_type */ NULL, /* sys_acl_get_permset */ NULL, /* sys_acl_get_qualifier */ NULL, /* s...