diff options
Diffstat (limited to 'source3/smbd/open.c')
| -rw-r--r-- | source3/smbd/open.c | 144 |
1 files changed, 45 insertions, 99 deletions
diff --git a/source3/smbd/open.c b/source3/smbd/open.c index cee2b37184..d5521f7f47 100644 --- a/source3/smbd/open.c +++ b/source3/smbd/open.c @@ -228,6 +228,7 @@ static BOOL open_file(files_struct *fsp,connection_struct *conn, fsp->oplock_type = NO_OPLOCK; fsp->sent_oplock_break = NO_BREAK_SENT; fsp->is_directory = False; + fsp->is_stat = False; fsp->directory_delete_on_close = False; fsp->conn = conn; string_set(&fsp->fsp_name,fname); @@ -1255,6 +1256,7 @@ files_struct *open_directory(connection_struct *conn, char *fname, SMB_STRUCT_ST fsp->oplock_type = NO_OPLOCK; fsp->sent_oplock_break = NO_BREAK_SENT; fsp->is_directory = True; + fsp->is_stat = False; fsp->directory_delete_on_close = False; fsp->conn = conn; string_set(&fsp->fsp_name,fname); @@ -1271,118 +1273,62 @@ files_struct *open_directory(connection_struct *conn, char *fname, SMB_STRUCT_ST return fsp; } -#if 0 -Old code - I have replaced with correct desired_access checking. JRA. - -/******************************************************************* - Check if the share mode on a file allows it to be deleted or unlinked. - Return True if sharing doesn't prevent the operation. -********************************************************************/ +/**************************************************************************** + Open a pseudo-file (no locking checks - a 'stat' open). +****************************************************************************/ -BOOL check_file_sharing(connection_struct *conn,char *fname, BOOL rename_op) +files_struct *open_file_stat(connection_struct *conn, char *fname, SMB_STRUCT_STAT *psbuf) { - int i; - int ret = False; - share_mode_entry *old_shares = 0; - int num_share_modes; - SMB_STRUCT_STAT sbuf; - pid_t pid = sys_getpid(); - SMB_DEV_T dev; - SMB_INO_T inode; - - if (vfs_stat(conn,fname,&sbuf) == -1) - return(True); - - dev = sbuf.st_dev; - inode = sbuf.st_ino; - - lock_share_entry(conn, dev, inode); - num_share_modes = get_share_modes(conn, dev, inode, &old_shares); - - /* - * Check if the share modes will give us access. - */ - - if(num_share_modes != 0) { - BOOL broke_oplock; - - do { - - broke_oplock = False; - for(i = 0; i < num_share_modes; i++) { - share_mode_entry *share_entry = &old_shares[i]; - - /* - * Break oplocks before checking share modes. See comment in - * open_file_shared for details. - * Check if someone has an oplock on this file. If so we must - * break it before continuing. - */ - if(BATCH_OPLOCK_TYPE(share_entry->op_type)) { - - DEBUG(5,("check_file_sharing: breaking oplock (%x) on file %s, \ -dev = %x, inode = %.0f\n", share_entry->op_type, fname, (unsigned int)dev, (double)inode)); + extern struct current_user current_user; + BOOL got_stat = False; + files_struct *fsp = NULL; - /* Oplock break.... */ - unlock_share_entry(conn, dev, inode); + if (!VALID_STAT(*psbuf)) + return NULL; - if(request_oplock_break(share_entry) == False) { - DEBUG(0,("check_file_sharing: FAILED when breaking oplock (%x) on file %s, \ -dev = %x, inode = %.0f\n", old_shares[i].op_type, fname, (unsigned int)dev, (double)inode)); + /* Can't 'stat' open directories. */ + if(S_ISDIR(psbuf->st_mode)) + return NULL; - SAFE_FREE(old_shares); - return False; - } - lock_share_entry(conn, dev, inode); - broke_oplock = True; - break; - } + fsp = file_new(conn); + if(!fsp) + return NULL; - /* - * If this is a delete request and ALLOW_SHARE_DELETE is set then allow - * this to proceed. This takes precedence over share modes. - */ - - if(!rename_op && GET_ALLOW_SHARE_DELETE(share_entry->share_mode)) - continue; - - /* - * Someone else has a share lock on it, check to see - * if we can too. - */ - if ((GET_DENY_MODE(share_entry->share_mode) != DENY_DOS) || - (share_entry->pid != pid)) - goto free_and_exit; - - } /* end for */ + fsp->conn = conn; /* The vfs_fXXX() macros need this. */ - if(broke_oplock) { - SAFE_FREE(old_shares); - num_share_modes = get_share_modes(conn, dev, inode, &old_shares); - } - } while(broke_oplock); - } + DEBUG(5,("open_file_stat: 'opening' file %s\n", fname)); /* - * XXXX exactly what share mode combinations should be allowed for - * deleting/renaming? + * Setup the files_struct for it. */ - + + fsp->mode = psbuf->st_mode; /* - * If we got here then either there were no share modes or - * all share modes were DENY_DOS and the pid == getpid() or - * delete access was requested and all share modes had the - * ALLOW_SHARE_DELETE bit set (takes precedence over other - * share modes). + * Don't store dev or inode, we don't want any iterator + * to see this. */ + fsp->inode = (SMB_INO_T)0; + fsp->dev = (SMB_DEV_T)0; + fsp->size = psbuf->st_size; + fsp->vuid = current_user.vuid; + fsp->pos = -1; + fsp->can_lock = False; + fsp->can_read = False; + fsp->can_write = False; + fsp->share_mode = 0; + fsp->desired_access = 0; + fsp->print_file = False; + fsp->modified = False; + fsp->oplock_type = NO_OPLOCK; + fsp->sent_oplock_break = NO_BREAK_SENT; + fsp->is_directory = False; + fsp->is_stat = True; + fsp->directory_delete_on_close = False; + fsp->conn = conn; + string_set(&fsp->fsp_name,fname); - ret = True; - -free_and_exit: + conn->num_files_open++; - unlock_share_entry(conn, dev, inode); - SAFE_FREE(old_shares); - return(ret); + return fsp; } -#endif |