Changeset 740 for vendor/current/source3/smbd/vfs.c

Timestamp:

Nov 14, 2012, 12:59:34 PM (13 years ago)

Author:

Silvan Scherrer

Message:

Samba Server: update vendor to 3.6.0

File:

• vendor/current/source3/smbd/vfs.c (modified) (28 diffs)

vendor/current/source3/smbd/vfs.c

@@ -25 +25 @@
 
 #include "includes.h"
+#include "system/filesys.h"
+#include "smbd/smbd.h"
 #include "smbd/globals.h"
+#include "memcache.h"
+#include "transfer_file.h"
+#include "ntioctl.h"
 
 #undef DBGC_CLASS
@@ -112 +117 @@
 
         if (!conn||!vfs_object||!vfs_object[0]) {
-                DEBUG(0,("vfs_init_custon() called with NULL pointer or emtpy vfs_object!\n"));
+                DEBUG(0, ("vfs_init_custom() called with NULL pointer or "
+                          "empty vfs_object!\n"));
                 return False;
         }
@@ -393 +399 @@
                  * before returning. */
                 req->unread_bytes = 0;
-                return SMB_VFS_RECVFILE(smbd_server_fd(),
+                return SMB_VFS_RECVFILE(req->sconn->sock,
                                         fsp,
                                         (SMB_OFF_T)-1,
@@ -426 +432 @@
                  * before returning. */
                 req->unread_bytes = 0;
-                return SMB_VFS_RECVFILE(smbd_server_fd(),
+                return SMB_VFS_RECVFILE(req->sconn->sock,
                                         fsp,
                                         offset,
@@ -454 +460 @@
 {
         int ret;
-        SMB_STRUCT_STAT st;
         connection_struct *conn = fsp->conn;
         uint64_t space_avail;
         uint64_t bsize,dfree,dsize;
+        NTSTATUS status;
 
         /*
@@ -473 +479 @@
         }
 
-        ret = SMB_VFS_FSTAT(fsp, &st);
-        if (ret == -1)
-                return ret;
-
-        if (len == (uint64_t)st.st_ex_size)
+        status = vfs_stat_fsp(fsp);
+        if (!NT_STATUS_IS_OK(status)) {
+                return -1;
+        }
+
+        if (len == (uint64_t)fsp->fsp_name->st.st_ex_size)
                 return 0;
 
-        if (len < (uint64_t)st.st_ex_size) {
+        if (len < (uint64_t)fsp->fsp_name->st.st_ex_size) {
                 /* Shrink - use ftruncate. */
 
                 DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
                           "size %.0f\n", fsp_str_dbg(fsp),
-                          (double)st.st_ex_size));
+                          (double)fsp->fsp_name->st.st_ex_size));
 
                 contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
@@ -499 +506 @@
         }
 
-        /* Grow - we need to test if we have enough space. */
-
-        contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
-        contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
-
         if (!lp_strict_allocate(SNUM(fsp->conn)))
                 return 0;
 
-        len -= st.st_ex_size;
+        /* Grow - we need to test if we have enough space. */
+
+        contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
+
+        /* See if we have a syscall that will allocate beyond end-of-file
+           without changing EOF. */
+        ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_KEEP_SIZE, 0, len);
+
+        contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
+
+        if (ret == 0) {
+                /* We changed the allocation size on disk, but not
+                   EOF - exactly as required. We're done ! */
+                return 0;
+        }
+
+        len -= fsp->fsp_name->st.st_ex_size;
         len /= 1024; /* Len is now number of 1k blocks needed. */
         space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
@@ -517 +535 @@
         DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
                   "needed blocks = %.0f, space avail = %.0f\n",
-                  fsp_str_dbg(fsp), (double)st.st_ex_size, (double)len,
+                  fsp_str_dbg(fsp), (double)fsp->fsp_name->st.st_ex_size, (double)len,
                   (double)space_avail));
 
@@ -557 +575 @@
 
 /****************************************************************************
+ A slow version of fallocate. Fallback code if SMB_VFS_FALLOCATE
+ fails. Needs to be outside of the default version of SMB_VFS_FALLOCATE
+ as this is also called from the default SMB_VFS_FTRUNCATE code.
+ Always extends the file size.
+ Returns 0 on success, errno on failure.
+****************************************************************************/
+
+#define SPARSE_BUF_WRITE_SIZE (32*1024)
+
+int vfs_slow_fallocate(files_struct *fsp, SMB_OFF_T offset, SMB_OFF_T len)
+{
+        ssize_t pwrite_ret;
+        size_t total = 0;
+
+        if (!sparse_buf) {
+                sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
+                if (!sparse_buf) {
+                        errno = ENOMEM;
+                        return ENOMEM;
+                }
+        }
+
+        while (total < len) {
+                size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (len - total));
+
+                pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
+                if (pwrite_ret == -1) {
+                        DEBUG(10,("vfs_slow_fallocate: SMB_VFS_PWRITE for file "
+                                  "%s failed with error %s\n",
+                                  fsp_str_dbg(fsp), strerror(errno)));
+                        return errno;
+                }
+                total += pwrite_ret;
+        }
+
+        return 0;
+}
+
+/****************************************************************************
  A vfs fill sparse call.
  Writes zeros from the end of file to len, if len is greater than EOF.
@@ -563 +620 @@
 ****************************************************************************/
 
-#define SPARSE_BUF_WRITE_SIZE (32*1024)
-
 int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
 {
         int ret;
-        SMB_STRUCT_STAT st;
+        NTSTATUS status;
         SMB_OFF_T offset;
-        size_t total;
         size_t num_to_write;
-        ssize_t pwrite_ret;
-
-        ret = SMB_VFS_FSTAT(fsp, &st);
-        if (ret == -1) {
-                return ret;
-        }
-
-        if (len <= st.st_ex_size) {
+
+        status = vfs_stat_fsp(fsp);
+        if (!NT_STATUS_IS_OK(status)) {
+                return -1;
+        }
+
+        if (len <= fsp->fsp_name->st.st_ex_size) {
                 return 0;
         }
 
 #ifdef S_ISFIFO
-        if (S_ISFIFO(st.st_ex_mode)) {
+        if (S_ISFIFO(fsp->fsp_name->st.st_ex_mode)) {
                 return 0;
         }
@@ -591 +644 @@
         DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
                   "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
-                  (double)st.st_ex_size, (double)len,
-                  (double)(len - st.st_ex_size)));
+                  (double)fsp->fsp_name->st.st_ex_size, (double)len,
+                  (double)(len - fsp->fsp_name->st.st_ex_size)));
 
         contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
@@ -598 +651 @@
         flush_write_cache(fsp, SIZECHANGE_FLUSH);
 
-
-        offset = st.st_ex_size;
-        num_to_write = len - st.st_ex_size;
+        offset = fsp->fsp_name->st.st_ex_size;
+        num_to_write = len - fsp->fsp_name->st.st_ex_size;
 
         /* Only do this on non-stream file handles. */
         if (fsp->base_fsp == NULL) {
-                /* for allocation try posix_fallocate first. This can fail on some
+                /* for allocation try fallocate first. This can fail on some
                  * platforms e.g. when the filesystem doesn't support it and no
                  * emulation is being done by the libc (like on AIX with JFS1). In that
-                 * case we do our own emulation. posix_fallocate implementations can
+                 * case we do our own emulation. fallocate implementations can
                  * return ENOTSUP or EINVAL in cases like that. */
-                ret = sys_posix_fallocate(fsp->fh->fd, offset, num_to_write);
+                ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_EXTEND_SIZE,
+                                offset, num_to_write);
                 if (ret == ENOSPC) {
                         errno = ENOSPC;
@@ -616 +669 @@
                 }
                 if (ret == 0) {
-                        set_filelen_write_cache(fsp, len);
                         goto out;
                 }
-
-                DEBUG(10,("vfs_fill_sparse: sys_posix_fallocate failed with "
+                DEBUG(10,("vfs_fill_sparse: SMB_VFS_FALLOCATE failed with "
                         "error %d. Falling back to slow manual allocation\n", ret));
         }
 
-        if (!sparse_buf) {
-                sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
-                if (!sparse_buf) {
-                        errno = ENOMEM;
-                        ret = -1;
-                        goto out;
-                }
-        }
-
-        total = 0;
-
-        while (total < num_to_write) {
-                size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
-
-                pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
-                if (pwrite_ret == -1) {
-                        DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
-                                  "%s failed with error %s\n",
-                                  fsp_str_dbg(fsp), strerror(errno)));
-                        ret = -1;
-                        goto out;
-                }
-                if (pwrite_ret == 0) {
-                        ret = 0;
-                        goto out;
-                }
-
-                total += pwrite_ret;
-        }
-
-        set_filelen_write_cache(fsp, len);
-
-        ret = 0;
+        ret = vfs_slow_fallocate(fsp, offset, num_to_write);
+        if (ret != 0) {
+                errno = ret;
+                ret = -1;
+        }
+
  out:
+
+        if (ret == 0) {
+                set_filelen_write_cache(fsp, len);
+        }
+
         contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
         return ret;
@@ -870 +899 @@
 NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
 {
-#ifdef REALPATH_TAKES_NULL
-        bool free_resolved_name = True;
-#else
-        char resolved_name_buf[PATH_MAX+1];
-        bool free_resolved_name = False;
-#endif
         char *resolved_name = NULL;
-        char *p = NULL;
+        bool allow_symlinks = true;
+        bool allow_widelinks = false;
 
         DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
 
-#ifdef REALPATH_TAKES_NULL
-        resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
-#else
-        resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
-#endif
+        resolved_name = SMB_VFS_REALPATH(conn,fname);
 
         if (!resolved_name) {
@@ -897 +917 @@
                         {
                                 TALLOC_CTX *ctx = talloc_tos();
-                                char *tmp_fname = NULL;
-                                char *last_component = NULL;
-                                /* Last component didn't exist. Remove it and try and canonicalise the directory. */
-
-                                tmp_fname = talloc_strdup(ctx, fname);
-                                if (!tmp_fname) {
+                                char *dir_name = NULL;
+                                const char *last_component = NULL;
+                                char *new_name = NULL;
+
+                                /* Last component didn't exist.
+                                   Remove it and try and canonicalise
+                                   the directory name. */
+                                if (!parent_dirname(ctx, fname,
+                                                &dir_name,
+                                                &last_component)) {
                                         return NT_STATUS_NO_MEMORY;
                                 }
-                                p = strrchr_m(tmp_fname, '/');
-                                if (p) {
-                                        *p++ = '\0';
-                                        last_component = p;
-                                } else {
-                                        last_component = tmp_fname;
-                                        tmp_fname = talloc_strdup(ctx,
-                                                        ".");
-                                        if (!tmp_fname) {
-                                                return NT_STATUS_NO_MEMORY;
-                                        }
-                                }
-
-#ifdef REALPATH_TAKES_NULL
-                                resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
-#else
-                                resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
-#endif
+
+                                resolved_name = SMB_VFS_REALPATH(conn,dir_name);
                                 if (!resolved_name) {
                                         NTSTATUS status = map_nt_error_from_unix(errno);
@@ -930 +938 @@
                                         }
 
-                                        DEBUG(3,("check_reduce_named: "
+                                        DEBUG(3,("check_reduce_name: "
                                                  "couldn't get realpath for "
                                                  "%s (%s)\n",
@@ -937 +945 @@
                                         return status;
                                 }
-                                tmp_fname = talloc_asprintf(ctx,
+                                new_name = talloc_asprintf(ctx,
                                                 "%s/%s",
                                                 resolved_name,
                                                 last_component);
-                                if (!tmp_fname) {
+                                if (!new_name) {
                                         return NT_STATUS_NO_MEMORY;
                                 }
-#ifdef REALPATH_TAKES_NULL
                                 SAFE_FREE(resolved_name);
-                                resolved_name = SMB_STRDUP(tmp_fname);
+                                resolved_name = SMB_STRDUP(new_name);
                                 if (!resolved_name) {
-                                        DEBUG(0, ("check_reduced_name: malloc "
-                                                  "fail for %s\n", tmp_fname));
                                         return NT_STATUS_NO_MEMORY;
                                 }
-#else
-                                safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
-                                resolved_name = resolved_name_buf;
-#endif
                                 break;
                         }
@@ -971 +972 @@
                 DEBUG(0,("check_reduced_name: realpath doesn't return "
                          "absolute paths !\n"));
-                if (free_resolved_name) {
+                SAFE_FREE(resolved_name);
+                return NT_STATUS_OBJECT_NAME_INVALID;
+        }
+
+        allow_widelinks = lp_widelinks(SNUM(conn));
+        allow_symlinks = lp_symlinks(SNUM(conn));
+
+        /* Common widelinks and symlinks checks. */
+        if (!allow_widelinks || !allow_symlinks) {
+                const char *conn_rootdir;
+                size_t rootdir_len;
+
+                conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
+                if (conn_rootdir == NULL) {
+                        DEBUG(2, ("check_reduced_name: Could not get "
+                                "conn_rootdir\n"));
                         SAFE_FREE(resolved_name);
-                }
-                return NT_STATUS_OBJECT_NAME_INVALID;
-        }
-
-        /* Check for widelinks allowed. */
-        if (!lp_widelinks(SNUM(conn))) {
-                    const char *conn_rootdir;
-
-                    conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
-                    if (conn_rootdir == NULL) {
-                            DEBUG(2, ("check_reduced_name: Could not get "
-                                      "conn_rootdir\n"));
-                            if (free_resolved_name) {
-                                    SAFE_FREE(resolved_name);
-                            }
-                            return NT_STATUS_ACCESS_DENIED;
-                    }
-
-                    if (strncmp(conn_rootdir, resolved_name,
-                                strlen(conn_rootdir)) != 0) {
-                            DEBUG(2, ("check_reduced_name: Bad access "
-                                      "attempt: %s is a symlink outside the "
-                                      "share path\n", fname));
-                            if (free_resolved_name) {
-                                    SAFE_FREE(resolved_name);
-                            }
-                            return NT_STATUS_ACCESS_DENIED;
-                    }
-        }
-
-        /* Check if we are allowing users to follow symlinks */
-        /* Patch from David Clerc <David.Clerc@cui.unige.ch>
-                University of Geneva */
-
-#ifdef S_ISLNK
-        if (!lp_symlinks(SNUM(conn))) {
-                struct smb_filename *smb_fname = NULL;
-                NTSTATUS status;
-
-                status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
-                                                    NULL, &smb_fname);
-                if (!NT_STATUS_IS_OK(status)) {
-                        if (free_resolved_name) {
+                        return NT_STATUS_ACCESS_DENIED;
+                }
+
+                rootdir_len = strlen(conn_rootdir);
+                if (strncmp(conn_rootdir, resolved_name,
+                                rootdir_len) != 0) {
+                        DEBUG(2, ("check_reduced_name: Bad access "
+                                "attempt: %s is a symlink outside the "
+                                "share path\n", fname));
+                        DEBUGADD(2, ("conn_rootdir =%s\n", conn_rootdir));
+                        DEBUGADD(2, ("resolved_name=%s\n", resolved_name));
+                        SAFE_FREE(resolved_name);
+                        return NT_STATUS_ACCESS_DENIED;
+                }
+
+                /* Extra checks if all symlinks are disallowed. */
+                if (!allow_symlinks) {
+                        /* fname can't have changed in resolved_path. */
+                        const char *p = &resolved_name[rootdir_len];
+
+                        /* *p can be '\0' if fname was "." */
+                        if (*p == '\0' && ISDOT(fname)) {
+                                goto out;
+                        }
+
+                        if (*p != '/') {
+                                DEBUG(2, ("check_reduced_name: logic error (%c) "
+                                        "in resolved_name: %s\n",
+                                        *p,
+                                        fname));
                                 SAFE_FREE(resolved_name);
+                                return NT_STATUS_ACCESS_DENIED;
                         }
-                        return status;
-                }
-
-                if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
-                                (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
-                        if (free_resolved_name) {
+
+                        p++;
+                        if (strcmp(fname, p)!=0) {
+                                DEBUG(2, ("check_reduced_name: Bad access "
+                                        "attempt: %s is a symlink\n",
+                                        fname));
                                 SAFE_FREE(resolved_name);
+                                return NT_STATUS_ACCESS_DENIED;
                         }
-                        DEBUG(3,("check_reduced_name: denied: file path name "
-                                 "%s is a symlink\n",resolved_name));
-                        TALLOC_FREE(smb_fname);
-                        return NT_STATUS_ACCESS_DENIED;
-                }
-                TALLOC_FREE(smb_fname);
-        }
-#endif
+                }
+        }
+
+  out:
 
         DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
                  resolved_name));
-        if (free_resolved_name) {
-                SAFE_FREE(resolved_name);
-        }
+        SAFE_FREE(resolved_name);
         return NT_STATUS_OK;
 }
@@ -1110 +1109 @@
         int ret;
 
-        if(fsp->is_directory || fsp->fh->fd == -1) {
+        if(fsp->fh->fd == -1) {
                 if (fsp->posix_open) {
                         ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
@@ -1176 +1175 @@
 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
                                       struct files_struct *fsp,
-                                      SHADOW_COPY_DATA *shadow_copy_data,
+                                      struct shadow_copy_data *shadow_copy_data,
                                       bool labels)
 {
@@ -1205 +1204 @@
 }
 
+SMB_STRUCT_DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
+                                        struct files_struct *fsp,
+                                        const char *mask,
+                                        uint32 attributes)
+{
+        VFS_FIND(fdopendir);
+        return handle->fns->fdopendir(handle, fsp, mask, attributes);
+}
+
 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
                                               SMB_STRUCT_DIR *dirp,
@@ -1265 +1273 @@
                       int flags, mode_t mode)
 {
-        VFS_FIND(open);
-        return handle->fns->open(handle, smb_fname, fsp, flags, mode);
+        VFS_FIND(open_fn);
+        return handle->fns->open_fn(handle, smb_fname, fsp, flags, mode);
 }
 
@@ -1280 +1288 @@
                                   uint32_t oplock_request,
                                   uint64_t allocation_size,
+                                  uint32_t private_flags,
                                   struct security_descriptor *sd,
                                   struct ea_list *ea_list,
@@ -1289 +1298 @@
                 handle, req, root_dir_fid, smb_fname, access_mask,
                 share_access, create_disposition, create_options,
-                file_attributes, oplock_request, allocation_size, sd, ea_list,
+                file_attributes, oplock_request, allocation_size,
+                private_flags, sd, ea_list,
                 result, pinfo);
 }
@@ -1442 +1452 @@
 }
 
+NTSTATUS vfs_chown_fsp(files_struct *fsp, uid_t uid, gid_t gid)
+{
+        int ret;
+        bool as_root = false;
+        const char *path;
+        char *saved_dir = NULL;
+        char *parent_dir = NULL;
+        NTSTATUS status;
+
+        if (fsp->fh->fd != -1) {
+                /* Try fchown. */
+                ret = SMB_VFS_FCHOWN(fsp, uid, gid);
+                if (ret == 0) {
+                        return NT_STATUS_OK;
+                }
+                if (ret == -1 && errno != ENOSYS) {
+                        return map_nt_error_from_unix(errno);
+                }
+        }
+
+        as_root = (geteuid() == 0);
+
+        if (as_root) {
+                /*
+                 * We are being asked to chown as root. Make
+                 * sure we chdir() into the path to pin it,
+                 * and always act using lchown to ensure we
+                 * don't deref any symbolic links.
+                 */
+                const char *final_component = NULL;
+                struct smb_filename local_fname;
+
+                saved_dir = vfs_GetWd(talloc_tos(),fsp->conn);
+                if (!saved_dir) {
+                        status = map_nt_error_from_unix(errno);
+                        DEBUG(0,("vfs_chown_fsp: failed to get "
+                                "current working directory. Error was %s\n",
+                                strerror(errno)));
+                        return status;
+                }
+
+                if (!parent_dirname(talloc_tos(),
+                                fsp->fsp_name->base_name,
+                                &parent_dir,
+                                &final_component)) {
+                        return NT_STATUS_NO_MEMORY;
+                }
+
+                /* cd into the parent dir to pin it. */
+                ret = SMB_VFS_CHDIR(fsp->conn, parent_dir);
+                if (ret == -1) {
+                        return map_nt_error_from_unix(errno);
+                }
+
+                ZERO_STRUCT(local_fname);
+                local_fname.base_name = CONST_DISCARD(char *,final_component);
+
+                /* Must use lstat here. */
+                ret = SMB_VFS_LSTAT(fsp->conn, &local_fname);
+                if (ret == -1) {
+                        return map_nt_error_from_unix(errno);
+                }
+
+                /* Ensure it matches the fsp stat. */
+                if (!check_same_stat(&local_fname.st, &fsp->fsp_name->st)) {
+                        return NT_STATUS_ACCESS_DENIED;
+                }
+                path = final_component;
+        } else {
+                path = fsp->fsp_name->base_name;
+        }
+
+        if (fsp->posix_open || as_root) {
+                ret = SMB_VFS_LCHOWN(fsp->conn,
+                        path,
+                        uid, gid);
+        } else {
+                ret = SMB_VFS_CHOWN(fsp->conn,
+                        path,
+                        uid, gid);
+        }
+
+        if (ret == 0) {
+                status = NT_STATUS_OK;
+        } else {
+                status = map_nt_error_from_unix(errno);
+        }
+
+        if (as_root) {
+                vfs_ChDir(fsp->conn,saved_dir);
+                TALLOC_FREE(saved_dir);
+                TALLOC_FREE(parent_dir);
+        }
+        return status;
+}
+
 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
 {
@@ -1469 +1575 @@
 }
 
+int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
+                                struct files_struct *fsp,
+                                enum vfs_fallocate_mode mode,
+                                SMB_OFF_T offset,
+                                SMB_OFF_T len)
+{
+        VFS_FIND(fallocate);
+        return handle->fns->fallocate(handle, fsp, mode, offset, len);
+}
+
 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
                               struct files_struct *fsp, uint32 share_mode,
@@ -1513 +1629 @@
 }
 
-char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
-                            const char *path, char *resolved_path)
+char *smb_vfs_call_realpath(struct vfs_handle_struct *handle, const char *path)
 {
         VFS_FIND(realpath);
-        return handle->fns->realpath(handle, path, resolved_path);
+        return handle->fns->realpath(handle, path);
 }
 
@@ -1961 +2076 @@
 
 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
-                             const char *path, SMB_STRUCT_STAT *sbuf)
+                             const struct smb_filename *fname,
+                             SMB_STRUCT_STAT *sbuf)
 {
         VFS_FIND(is_offline);
-        return handle->fns->is_offline(handle, path, sbuf);
+        return handle->fns->is_offline(handle, fname, sbuf);
 }
 
 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
-                             const char *path)
+                             const struct smb_filename *fname)
 {
         VFS_FIND(set_offline);
-        return handle->fns->set_offline(handle, path);
-}
+        return handle->fns->set_offline(handle, fname);
+}