Author: jra Date: 2007-07-17 18:48:39 +0000 (Tue, 17 Jul 2007) New Revision: 23935
WebSVN: http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=23935 Log: We were lying to the client in the case of POSIX_UNLINK if a Windows client had the file open. We were setting delete on close and returning "ok". The POSIX client then believed the file was gone (and it wasn't). Fix this to return SHARING_VIOLATION if there is an existing NTcreateX open on the file and someone calls POSIX_UNLINK. Still one more Cthon test to fix but getting closer now. Should be in 3.0.25c also. Jeremy. Modified: branches/SAMBA_3_0_25/source/smbd/trans2.c branches/SAMBA_3_2/source/smbd/trans2.c branches/SAMBA_3_2_0/source/smbd/trans2.c Changeset: Modified: branches/SAMBA_3_0_25/source/smbd/trans2.c =================================================================== --- branches/SAMBA_3_0_25/source/smbd/trans2.c 2007-07-17 14:29:05 UTC (rev 23934) +++ branches/SAMBA_3_0_25/source/smbd/trans2.c 2007-07-17 18:48:39 UTC (rev 23935) @@ -5542,7 +5542,10 @@ NTSTATUS status = NT_STATUS_OK; files_struct *fsp = NULL; uint16 flags = 0; + char del = 1; int info = 0; + int i; + struct share_mode_lock *lck = NULL; if (total_data < 2) { return NT_STATUS_INVALID_PARAMETER; @@ -5570,12 +5573,11 @@ DELETE_ACCESS, FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, FILE_OPEN, - FILE_DELETE_ON_CLOSE, + 0, FILE_FLAG_POSIX_SEMANTICS|0777, - &info, + &info, &fsp); } else { - char del = 1; status = open_file_ntcreate(conn, fname, @@ -5588,26 +5590,59 @@ 0, /* No oplock, but break existing ones. */ &info, &fsp); - /* - * For file opens we must set the delete on close - * after the open. - */ + } - if (!NT_STATUS_IS_OK(status)) { - return status; - } + if (!NT_STATUS_IS_OK(status)) { + return status; + } - status = smb_set_file_disposition_info(conn, - &del, - 1, - fsp, - fname, - psbuf); + /* + * Don't lie to client. If we can't really delete due to + * non-POSIX opens return SHARING_VIOLATION. + */ + + lck = get_share_mode_lock(NULL, fsp->file_id, NULL, NULL); + if (lck == NULL) { + DEBUG(0, ("smb_posix_unlink: Could not get share mode " + "lock for file %s\n", fsp->fsp_name)); + close_file(fsp, NORMAL_CLOSE); + return NT_STATUS_INVALID_PARAMETER; } + /* + * See if others still have the file open. If this is the case, then + * don't delete. If all opens are POSIX delete we can set the delete + * on close disposition. + */ + for (i=0; i<lck->num_share_modes; i++) { + struct share_mode_entry *e = &lck->share_modes[i]; + if (is_valid_share_mode_entry(e)) { + if (e->flags & SHARE_MODE_FLAG_POSIX_OPEN) { + continue; + } + /* Fail with sharing violation. */ + close_file(fsp, NORMAL_CLOSE); + TALLOC_FREE(lck); + return NT_STATUS_SHARING_VIOLATION; + } + } + + /* + * Set the delete on close. + */ + status = smb_set_file_disposition_info(conn, + &del, + 1, + fsp, + fname, + psbuf); + if (!NT_STATUS_IS_OK(status)) { + close_file(fsp, NORMAL_CLOSE); + TALLOC_FREE(lck); return status; } + TALLOC_FREE(lck); return close_file(fsp, NORMAL_CLOSE); } Modified: branches/SAMBA_3_2/source/smbd/trans2.c =================================================================== --- branches/SAMBA_3_2/source/smbd/trans2.c 2007-07-17 14:29:05 UTC (rev 23934) +++ branches/SAMBA_3_2/source/smbd/trans2.c 2007-07-17 18:48:39 UTC (rev 23935) @@ -5723,7 +5723,10 @@ NTSTATUS status = NT_STATUS_OK; files_struct *fsp = NULL; uint16 flags = 0; + char del = 1; int info = 0; + int i; + struct share_mode_lock *lck = NULL; if (total_data < 2) { return NT_STATUS_INVALID_PARAMETER; @@ -5751,12 +5754,11 @@ DELETE_ACCESS, FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, FILE_OPEN, - FILE_DELETE_ON_CLOSE, + 0, FILE_FLAG_POSIX_SEMANTICS|0777, - &info, + &info, &fsp); } else { - char del = 1; status = open_file_ntcreate(conn, req, fname, @@ -5769,26 +5771,59 @@ 0, /* No oplock, but break existing ones. */ &info, &fsp); - /* - * For file opens we must set the delete on close - * after the open. - */ + } - if (!NT_STATUS_IS_OK(status)) { - return status; - } + if (!NT_STATUS_IS_OK(status)) { + return status; + } - status = smb_set_file_disposition_info(conn, - &del, - 1, - fsp, - fname, - psbuf); + /* + * Don't lie to client. If we can't really delete due to + * non-POSIX opens return SHARING_VIOLATION. + */ + + lck = get_share_mode_lock(NULL, fsp->file_id, NULL, NULL); + if (lck == NULL) { + DEBUG(0, ("smb_posix_unlink: Could not get share mode " + "lock for file %s\n", fsp->fsp_name)); + close_file(fsp, NORMAL_CLOSE); + return NT_STATUS_INVALID_PARAMETER; } + /* + * See if others still have the file open. If this is the case, then + * don't delete. If all opens are POSIX delete we can set the delete + * on close disposition. + */ + for (i=0; i<lck->num_share_modes; i++) { + struct share_mode_entry *e = &lck->share_modes[i]; + if (is_valid_share_mode_entry(e)) { + if (e->flags & SHARE_MODE_FLAG_POSIX_OPEN) { + continue; + } + /* Fail with sharing violation. */ + close_file(fsp, NORMAL_CLOSE); + TALLOC_FREE(lck); + return NT_STATUS_SHARING_VIOLATION; + } + } + + /* + * Set the delete on close. + */ + status = smb_set_file_disposition_info(conn, + &del, + 1, + fsp, + fname, + psbuf); + if (!NT_STATUS_IS_OK(status)) { + close_file(fsp, NORMAL_CLOSE); + TALLOC_FREE(lck); return status; } + TALLOC_FREE(lck); return close_file(fsp, NORMAL_CLOSE); } Modified: branches/SAMBA_3_2_0/source/smbd/trans2.c =================================================================== --- branches/SAMBA_3_2_0/source/smbd/trans2.c 2007-07-17 14:29:05 UTC (rev 23934) +++ branches/SAMBA_3_2_0/source/smbd/trans2.c 2007-07-17 18:48:39 UTC (rev 23935) @@ -5669,7 +5669,10 @@ NTSTATUS status = NT_STATUS_OK; files_struct *fsp = NULL; uint16 flags = 0; + char del = 1; int info = 0; + int i; + struct share_mode_lock *lck = NULL; if (total_data < 2) { return NT_STATUS_INVALID_PARAMETER; @@ -5697,12 +5700,11 @@ DELETE_ACCESS, FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, FILE_OPEN, - FILE_DELETE_ON_CLOSE, + 0, FILE_FLAG_POSIX_SEMANTICS|0777, - &info, + &info, &fsp); } else { - char del = 1; status = open_file_ntcreate(conn, req, fname, @@ -5715,26 +5717,59 @@ 0, /* No oplock, but break existing ones. */ &info, &fsp); - /* - * For file opens we must set the delete on close - * after the open. - */ + } - if (!NT_STATUS_IS_OK(status)) { - return status; - } + if (!NT_STATUS_IS_OK(status)) { + return status; + } - status = smb_set_file_disposition_info(conn, - &del, - 1, - fsp, - fname, - psbuf); + /* + * Don't lie to client. If we can't really delete due to + * non-POSIX opens return SHARING_VIOLATION. + */ + + lck = get_share_mode_lock(NULL, fsp->file_id, NULL, NULL); + if (lck == NULL) { + DEBUG(0, ("smb_posix_unlink: Could not get share mode " + "lock for file %s\n", fsp->fsp_name)); + close_file(fsp, NORMAL_CLOSE); + return NT_STATUS_INVALID_PARAMETER; } + /* + * See if others still have the file open. If this is the case, then + * don't delete. If all opens are POSIX delete we can set the delete + * on close disposition. + */ + for (i=0; i<lck->num_share_modes; i++) { + struct share_mode_entry *e = &lck->share_modes[i]; + if (is_valid_share_mode_entry(e)) { + if (e->flags & SHARE_MODE_FLAG_POSIX_OPEN) { + continue; + } + /* Fail with sharing violation. */ + close_file(fsp, NORMAL_CLOSE); + TALLOC_FREE(lck); + return NT_STATUS_SHARING_VIOLATION; + } + } + + /* + * Set the delete on close. + */ + status = smb_set_file_disposition_info(conn, + &del, + 1, + fsp, + fname, + psbuf); + if (!NT_STATUS_IS_OK(status)) { + close_file(fsp, NORMAL_CLOSE); + TALLOC_FREE(lck); return status; } + TALLOC_FREE(lck); return close_file(fsp, NORMAL_CLOSE); }
