r4242: added support for storing xattrs in a tdb. This allows all advanced NT
[kamenim/samba.git] / source4 / ntvfs / posix / vfs_posix.c
index 8269f9bba7d5ffd527363aa4309a9701fc8c9081..6f4de1e0388b4439ec199bb5ef0213d8531cf86c 100644 (file)
   This is the default backend
 */
 
-#include "include/includes.h"
+#include "includes.h"
 #include "vfs_posix.h"
 
 
+/*
+  setup config options for a posix share
+*/
+static void pvfs_setup_options(struct pvfs_state *pvfs)
+{
+       int snum = pvfs->tcon->service;
+       int delay;
+       const char *eadb;
+
+       if (lp_map_hidden(snum))     pvfs->flags |= PVFS_FLAG_MAP_HIDDEN;
+       if (lp_map_archive(snum))    pvfs->flags |= PVFS_FLAG_MAP_ARCHIVE;
+       if (lp_map_system(snum))     pvfs->flags |= PVFS_FLAG_MAP_SYSTEM;
+       if (lp_readonly(snum))       pvfs->flags |= PVFS_FLAG_READONLY;
+       if (lp_strict_sync(snum))    pvfs->flags |= PVFS_FLAG_STRICT_SYNC;
+       if (lp_strict_locking(snum)) pvfs->flags |= PVFS_FLAG_STRICT_LOCKING;
+       if (lp_ci_filesystem(snum))  pvfs->flags |= PVFS_FLAG_CI_FILESYSTEM;
+
+       if (lp_parm_bool(snum, "posix", "fakeoplocks", False)) {
+               pvfs->flags |= PVFS_FLAG_FAKE_OPLOCKS;
+       }
+
+#if HAVE_XATTR_SUPPORT
+       if (lp_parm_bool(snum, "posix", "xattr", True)) pvfs->flags |= PVFS_FLAG_XATTR_ENABLE;
+#endif
+
+       pvfs->sharing_violation_delay = 1000000;
+       delay = lp_parm_int(snum, "posix", "sharedelay");
+       if (delay != -1) {
+               pvfs->sharing_violation_delay = delay;
+       }
+
+       pvfs->share_name = talloc_strdup(pvfs, lp_servicename(snum));
+
+       pvfs->fs_attribs = 
+               FS_ATTR_CASE_SENSITIVE_SEARCH | 
+               FS_ATTR_CASE_PRESERVED_NAMES |
+               FS_ATTR_UNICODE_ON_DISK |
+               FS_ATTR_SPARSE_FILES;
+
+       /* allow xattrs to be stored in a external tdb */
+       eadb = lp_parm_string(snum, "posix", "eadb");
+       if (eadb != NULL) {
+               pvfs->ea_db = tdb_wrap_open(pvfs, eadb, 50000,  
+                                           TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
+               if (pvfs->ea_db != NULL) {
+                       pvfs->flags |= PVFS_FLAG_XATTR_ENABLE;
+               } else {
+                       DEBUG(0,("Failed to open eadb '%s' - %s\n",
+                                eadb, strerror(errno)));
+                       pvfs->flags &= ~PVFS_FLAG_XATTR_ENABLE;
+               }
+       }
+
+
+       if (pvfs->flags & PVFS_FLAG_XATTR_ENABLE) {
+               pvfs->fs_attribs |= FS_ATTR_NAMED_STREAMS;
+       }
+       if (pvfs->flags & PVFS_FLAG_XATTR_ENABLE) {
+               pvfs->fs_attribs |= FS_ATTR_PERSISTANT_ACLS;
+       }
+}
+
+
 /*
   connect to a share - used when a tree_connect operation comes
   in. For a disk based backend we needs to ensure that the base
   directory exists (tho it doesn't need to be accessible by the user,
   that comes later)
 */
-static NTSTATUS pvfs_connect(struct smbsrv_request *req, const char *sharename)
+static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs,
+                            struct smbsrv_request *req, const char *sharename)
 {
        struct smbsrv_tcon *tcon = req->tcon;
        struct pvfs_state *pvfs;
        struct stat st;
+       char *base_directory;
+       NTSTATUS status;
 
-       DEBUG(0,("WARNING: the posix vfs handler is incomplete - you probably want \"ntvfs handler = simple\"\n"));
-
-       pvfs = talloc_named(tcon, sizeof(struct pvfs_state), "pvfs_connect(%s)", sharename);
+       pvfs = talloc_zero_p(tcon, struct pvfs_state);
        if (pvfs == NULL) {
                return NT_STATUS_NO_MEMORY;
        }
 
-       pvfs->base_directory = talloc_strdup(pvfs, lp_pathname(tcon->service));
+       /* for simplicity of path construction, remove any trailing slash now */
+       base_directory = talloc_strdup(pvfs, lp_pathname(tcon->service));
+       trim_string(base_directory, NULL, "/");
+
+       pvfs->tcon = tcon;
+       pvfs->base_directory = base_directory;
 
        /* the directory must exist. Note that we deliberately don't
           check that it is readable */
@@ -60,17 +129,118 @@ static NTSTATUS pvfs_connect(struct smbsrv_request *req, const char *sharename)
        tcon->fs_type = talloc_strdup(tcon, "NTFS");
        tcon->dev_type = talloc_strdup(tcon, "A:");
 
+       ntvfs->private_data = pvfs;
+
+       pvfs->brl_context = brl_init(pvfs, 
+                                    pvfs->tcon->smb_conn->connection->server_id,  
+                                    pvfs->tcon->service,
+                                    pvfs->tcon->smb_conn->connection->messaging_ctx);
+       if (pvfs->brl_context == NULL) {
+               return NT_STATUS_INTERNAL_DB_CORRUPTION;
+       }
+
+       pvfs->odb_context = odb_init(pvfs, 
+                                    pvfs->tcon->smb_conn->connection->server_id,  
+                                    pvfs->tcon->smb_conn->connection->messaging_ctx);
+       if (pvfs->odb_context == NULL) {
+               return NT_STATUS_INTERNAL_DB_CORRUPTION;
+       }
+
+       pvfs->sidmap = sidmap_open(pvfs);
+       if (pvfs->sidmap == NULL) {
+               return NT_STATUS_INTERNAL_DB_CORRUPTION;
+       }
+
+       /* allocate the fnum id -> ptr tree */
+       pvfs->idtree_fnum = idr_init(pvfs);
+       if (pvfs->idtree_fnum == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       /* allocate the search handle -> ptr tree */
+       pvfs->idtree_search = idr_init(pvfs);
+       if (pvfs->idtree_search == NULL) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       status = pvfs_mangle_init(pvfs);
+       if (!NT_STATUS_IS_OK(status)) {
+               return status;
+       }
+
+       pvfs_setup_options(pvfs);
+
+#ifdef SIGXFSZ
+       /* who had the stupid idea to generate a signal on a large
+          file write instead of just failing it!? */
+       BlockSignals(True, SIGXFSZ);
+#endif
+
        return NT_STATUS_OK;
 }
 
 /*
   disconnect from a share
 */
-static NTSTATUS pvfs_disconnect(struct smbsrv_tcon *tcon)
+static NTSTATUS pvfs_disconnect(struct ntvfs_module_context *ntvfs,
+                               struct smbsrv_tcon *tcon)
 {
        return NT_STATUS_OK;
 }
 
+/*
+  check if a directory exists
+*/
+static NTSTATUS pvfs_chkpath(struct ntvfs_module_context *ntvfs,
+                            struct smbsrv_request *req, struct smb_chkpath *cp)
+{
+       struct pvfs_state *pvfs = ntvfs->private_data;
+       struct pvfs_filename *name;
+       NTSTATUS status;
+
+       /* resolve the cifs name to a posix name */
+       status = pvfs_resolve_name(pvfs, req, cp->in.path, 0, &name);
+       if (!NT_STATUS_IS_OK(status)) {
+               return status;
+       }
+
+       if (!name->exists) {
+               return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+       }
+
+       if (!S_ISDIR(name->st.st_mode)) {
+               return NT_STATUS_NOT_A_DIRECTORY;
+       }
+
+       return NT_STATUS_OK;
+}
+
+/*
+  copy a set of files
+*/
+static NTSTATUS pvfs_copy(struct ntvfs_module_context *ntvfs,
+                         struct smbsrv_request *req, struct smb_copy *cp)
+{
+       DEBUG(0,("pvfs_copy not implemented\n"));
+       return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  return print queue info
+*/
+static NTSTATUS pvfs_lpq(struct ntvfs_module_context *ntvfs,
+                        struct smbsrv_request *req, union smb_lpq *lpq)
+{
+       return NT_STATUS_NOT_SUPPORTED;
+}
+
+/* SMBtrans - not used on file shares */
+static NTSTATUS pvfs_trans(struct ntvfs_module_context *ntvfs,
+                          struct smbsrv_request *req, struct smb_trans2 *trans2)
+{
+       return NT_STATUS_ACCESS_DENIED;
+}
+
 /*
   initialialise the POSIX disk backend, registering ourselves with the ntvfs subsystem
  */
@@ -81,16 +251,48 @@ NTSTATUS ntvfs_posix_init(void)
 
        ZERO_STRUCT(ops);
 
-       ops.name = "default";
        ops.type = NTVFS_DISK;
        
        /* fill in all the operations */
        ops.connect = pvfs_connect;
        ops.disconnect = pvfs_disconnect;
+       ops.unlink = pvfs_unlink;
+       ops.chkpath = pvfs_chkpath;
+       ops.qpathinfo = pvfs_qpathinfo;
+       ops.setpathinfo = pvfs_setpathinfo;
+       ops.openfile = pvfs_open;
+       ops.mkdir = pvfs_mkdir;
+       ops.rmdir = pvfs_rmdir;
+       ops.rename = pvfs_rename;
+       ops.copy = pvfs_copy;
+       ops.ioctl = pvfs_ioctl;
+       ops.read = pvfs_read;
+       ops.write = pvfs_write;
+       ops.seek = pvfs_seek;
+       ops.flush = pvfs_flush; 
+       ops.close = pvfs_close;
+       ops.exit = pvfs_exit;
+       ops.lock = pvfs_lock;
+       ops.setfileinfo = pvfs_setfileinfo;
+       ops.qfileinfo = pvfs_qfileinfo;
+       ops.fsinfo = pvfs_fsinfo;
+       ops.lpq = pvfs_lpq;
+       ops.search_first = pvfs_search_first;
+       ops.search_next = pvfs_search_next;
+       ops.search_close = pvfs_search_close;
+       ops.trans = pvfs_trans;
+       ops.logoff = pvfs_logoff;
+       ops.async_setup = pvfs_async_setup;
+       ops.cancel = pvfs_cancel;
+
+       /* register ourselves with the NTVFS subsystem. We register
+          under the name 'default' as we wish to be the default
+          backend, and also register as 'posix' */
+       ops.name = "default";
+       ret = ntvfs_register(&ops);
 
-       /* register ourselves with the NTVFS subsystem. We register under the name 'default'
-          as we wish to be the default backend */
-       ret = register_backend("ntvfs", &ops);
+       ops.name = "posix";
+       ret = ntvfs_register(&ops);
 
        if (!NT_STATUS_IS_OK(ret)) {
                DEBUG(0,("Failed to register POSIX backend!\n"));