pyldb: avoid segfault when adding an element with no name
[nivanova/samba-autobuild/.git] / examples / VFS / skel_transparent.c
index 9592c17414a4a845f2974fd6461792e2cf9f9207..fc892a23208276f4e7aa9adb481b966bdae5c2f0 100644 (file)
@@ -182,11 +182,6 @@ static int skel_closedir(vfs_handle_struct *handle, DIR *dir)
        return SMB_VFS_NEXT_CLOSEDIR(handle, dir);
 }
 
-static void skel_init_search_op(struct vfs_handle_struct *handle, DIR *dirp)
-{
-       SMB_VFS_NEXT_INIT_SEARCH_OP(handle, dirp);
-}
-
 static int skel_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
                     files_struct *fsp, int flags, mode_t mode)
 {
@@ -234,12 +229,6 @@ static int skel_close_fn(vfs_handle_struct *handle, files_struct *fsp)
        return SMB_VFS_NEXT_CLOSE(handle, fsp);
 }
 
-static ssize_t skel_vfs_read(vfs_handle_struct *handle, files_struct *fsp,
-                            void *data, size_t n)
-{
-       return SMB_VFS_NEXT_READ(handle, fsp, data, n);
-}
-
 static ssize_t skel_pread(vfs_handle_struct *handle, files_struct *fsp,
                          void *data, size_t n, off_t offset)
 {
@@ -300,12 +289,6 @@ static ssize_t skel_pread_recv(struct tevent_req *req,
        return state->ret;
 }
 
-static ssize_t skel_write(vfs_handle_struct *handle, files_struct *fsp,
-                         const void *data, size_t n)
-{
-       return SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
-}
-
 static ssize_t skel_pwrite(vfs_handle_struct *handle, files_struct *fsp,
                           const void *data, size_t n, off_t offset)
 {
@@ -393,11 +376,6 @@ static int skel_rename(vfs_handle_struct *handle,
        return SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
 }
 
-static int skel_fsync(vfs_handle_struct *handle, files_struct *fsp)
-{
-       return SMB_VFS_NEXT_FSYNC(handle, fsp);
-}
-
 struct skel_fsync_state {
        int ret;
        struct vfs_aio_state vfs_aio_state;
@@ -856,11 +834,11 @@ static bool skel_brl_cancel_windows(struct vfs_handle_struct *handle,
        return SMB_VFS_NEXT_BRL_CANCEL_WINDOWS(handle, br_lck, plock);
 }
 
-static bool skel_strict_lock(struct vfs_handle_struct *handle,
-                            struct files_struct *fsp,
-                            struct lock_struct *plock)
+static bool skel_strict_lock_check(struct vfs_handle_struct *handle,
+                                  struct files_struct *fsp,
+                                  struct lock_struct *plock)
 {
-       return SMB_VFS_NEXT_STRICT_LOCK(handle, fsp, plock);
+       return SMB_VFS_NEXT_STRICT_LOCK_CHECK(handle, fsp, plock);
 }
 
 static NTSTATUS skel_translate_name(struct vfs_handle_struct *handle,
@@ -908,6 +886,85 @@ static NTSTATUS skel_get_dos_attributes(struct vfs_handle_struct *handle,
                                dosmode);
 }
 
+struct skel_get_dos_attributes_state {
+       struct vfs_aio_state aio_state;
+       uint32_t dosmode;
+};
+
+static void skel_get_dos_attributes_done(struct tevent_req *subreq);
+
+static struct tevent_req *skel_get_dos_attributes_send(
+                       TALLOC_CTX *mem_ctx,
+                       struct tevent_context *ev,
+                       struct vfs_handle_struct *handle,
+                       files_struct *dir_fsp,
+                       struct smb_filename *smb_fname)
+{
+       struct tevent_req *req = NULL;
+       struct skel_get_dos_attributes_state *state = NULL;
+       struct tevent_req *subreq = NULL;
+
+       req = tevent_req_create(mem_ctx, &state,
+                               struct skel_get_dos_attributes_state);
+       if (req == NULL) {
+               return NULL;
+       }
+
+       subreq = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_SEND(mem_ctx,
+                                                     ev,
+                                                     handle,
+                                                     dir_fsp,
+                                                     smb_fname);
+       if (tevent_req_nomem(subreq, req)) {
+               return tevent_req_post(req, ev);
+       }
+       tevent_req_set_callback(subreq, skel_get_dos_attributes_done, req);
+
+       return req;
+}
+
+static void skel_get_dos_attributes_done(struct tevent_req *subreq)
+{
+       struct tevent_req *req =
+               tevent_req_callback_data(subreq,
+               struct tevent_req);
+       struct skel_get_dos_attributes_state *state =
+               tevent_req_data(req,
+               struct skel_get_dos_attributes_state);
+       NTSTATUS status;
+
+       status = SMB_VFS_NEXT_GET_DOS_ATTRIBUTES_RECV(subreq,
+                                                     &state->aio_state,
+                                                     &state->dosmode);
+       TALLOC_FREE(subreq);
+       if (tevent_req_nterror(req, status)) {
+               return;
+       }
+
+       tevent_req_done(req);
+       return;
+}
+
+static NTSTATUS skel_get_dos_attributes_recv(struct tevent_req *req,
+                                            struct vfs_aio_state *aio_state,
+                                            uint32_t *dosmode)
+{
+       struct skel_get_dos_attributes_state *state =
+               tevent_req_data(req,
+               struct skel_get_dos_attributes_state);
+       NTSTATUS status;
+
+       if (tevent_req_is_nterror(req, &status)) {
+               tevent_req_received(req);
+               return status;
+       }
+
+       *aio_state = state->aio_state;
+       *dosmode = state->dosmode;
+       tevent_req_received(req);
+       return NT_STATUS_OK;
+}
+
 static NTSTATUS skel_fget_dos_attributes(struct vfs_handle_struct *handle,
                                struct files_struct *fsp,
                                uint32_t *dosmode)
@@ -964,19 +1021,6 @@ static NTSTATUS skel_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
        return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
 }
 
-static int skel_chmod_acl(vfs_handle_struct *handle,
-                       const struct smb_filename *smb_fname,
-                       mode_t mode)
-{
-       return SMB_VFS_NEXT_CHMOD_ACL(handle, smb_fname, mode);
-}
-
-static int skel_fchmod_acl(vfs_handle_struct *handle, files_struct *fsp,
-                          mode_t mode)
-{
-       return SMB_VFS_NEXT_FCHMOD_ACL(handle, fsp, mode);
-}
-
 static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle,
                                       const struct smb_filename *smb_fname,
                                       SMB_ACL_TYPE_T type,
@@ -1039,6 +1083,92 @@ static ssize_t skel_getxattr(vfs_handle_struct *handle,
        return SMB_VFS_NEXT_GETXATTR(handle, smb_fname, name, value, size);
 }
 
+struct skel_getxattrat_state {
+       struct vfs_aio_state aio_state;
+       ssize_t xattr_size;
+       uint8_t *xattr_value;
+};
+
+static void skel_getxattrat_done(struct tevent_req *subreq);
+
+static struct tevent_req *skel_getxattrat_send(
+                       TALLOC_CTX *mem_ctx,
+                       struct tevent_context *ev,
+                       struct vfs_handle_struct *handle,
+                       files_struct *dir_fsp,
+                       const struct smb_filename *smb_fname,
+                       const char *xattr_name,
+                       size_t alloc_hint)
+{
+       struct tevent_req *req = NULL;
+       struct skel_getxattrat_state *state = NULL;
+       struct tevent_req *subreq = NULL;
+
+       req = tevent_req_create(mem_ctx, &state,
+                               struct skel_getxattrat_state);
+       if (req == NULL) {
+               return NULL;
+       }
+
+       subreq = SMB_VFS_NEXT_GETXATTRAT_SEND(state,
+                                             ev,
+                                             handle,
+                                             dir_fsp,
+                                             smb_fname,
+                                             xattr_name,
+                                             alloc_hint);
+       if (tevent_req_nomem(subreq, req)) {
+               return tevent_req_post(req, ev);
+       }
+       tevent_req_set_callback(subreq, skel_getxattrat_done, req);
+
+       return req;
+}
+
+static void skel_getxattrat_done(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(
+               subreq, struct tevent_req);
+       struct skel_getxattrat_state *state = tevent_req_data(
+               req, struct skel_getxattrat_state);
+
+       state->xattr_size = SMB_VFS_NEXT_GETXATTRAT_RECV(subreq,
+                                                        &state->aio_state,
+                                                        state,
+                                                        &state->xattr_value);
+       TALLOC_FREE(subreq);
+       if (state->xattr_size == -1) {
+               tevent_req_error(req, state->aio_state.error);
+               return;
+       }
+
+       tevent_req_done(req);
+}
+
+static ssize_t skel_getxattrat_recv(struct tevent_req *req,
+                                   struct vfs_aio_state *aio_state,
+                                   TALLOC_CTX *mem_ctx,
+                                   uint8_t **xattr_value)
+{
+       struct skel_getxattrat_state *state = tevent_req_data(
+               req, struct skel_getxattrat_state);
+       ssize_t xattr_size;
+
+       if (tevent_req_is_unix_error(req, &aio_state->error)) {
+               tevent_req_received(req);
+               return -1;
+       }
+
+       *aio_state = state->aio_state;
+       xattr_size = state->xattr_size;
+       if (xattr_value != NULL) {
+               *xattr_value = talloc_move(mem_ctx, &state->xattr_value);
+       }
+
+       tevent_req_received(req);
+       return xattr_size;
+}
+
 static ssize_t skel_fgetxattr(vfs_handle_struct *handle,
                              struct files_struct *fsp, const char *name,
                              void *value, size_t size)
@@ -1098,9 +1228,63 @@ static bool skel_aio_force(struct vfs_handle_struct *handle,
        return SMB_VFS_NEXT_AIO_FORCE(handle, fsp);
 }
 
+static NTSTATUS skel_audit_file(struct vfs_handle_struct *handle,
+                               struct smb_filename *file,
+                               struct security_acl *sacl,
+                               uint32_t access_requested,
+                               uint32_t access_denied)
+{
+       return SMB_VFS_NEXT_AUDIT_FILE(handle,
+                                      file,
+                                      sacl,
+                                      access_requested,
+                                      access_denied);
+}
+
+static NTSTATUS skel_durable_cookie(struct vfs_handle_struct *handle,
+                                   struct files_struct *fsp,
+                                   TALLOC_CTX *mem_ctx,
+                                   DATA_BLOB *cookie)
+{
+       return SMB_VFS_NEXT_DURABLE_COOKIE(handle,
+                                          fsp,
+                                          mem_ctx,
+                                          cookie);
+}
+
+static NTSTATUS skel_durable_disconnect(struct vfs_handle_struct *handle,
+                                       struct files_struct *fsp,
+                                       const DATA_BLOB old_cookie,
+                                       TALLOC_CTX *mem_ctx,
+                                       DATA_BLOB *new_cookie)
+{
+       return SMB_VFS_NEXT_DURABLE_DISCONNECT(handle,
+                                              fsp,
+                                              old_cookie,
+                                              mem_ctx,
+                                              new_cookie);
+}
+
+static NTSTATUS skel_durable_reconnect(struct vfs_handle_struct *handle,
+                                      struct smb_request *smb1req,
+                                      struct smbXsrv_open *op,
+                                      const DATA_BLOB old_cookie,
+                                      TALLOC_CTX *mem_ctx,
+                                      struct files_struct **fsp,
+                                      DATA_BLOB *new_cookie)
+{
+       return SMB_VFS_NEXT_DURABLE_RECONNECT(handle,
+                                             smb1req,
+                                             op,
+                                             old_cookie,
+                                             mem_ctx,
+                                             fsp,
+                                             new_cookie);
+}
+
 /* VFS operations structure */
 
-struct vfs_fn_pointers skel_transparent_fns = {
+static struct vfs_fn_pointers skel_transparent_fns = {
        /* Disk operations */
 
        .connect_fn = skel_connect,
@@ -1127,18 +1311,15 @@ struct vfs_fn_pointers skel_transparent_fns = {
        .mkdir_fn = skel_mkdir,
        .rmdir_fn = skel_rmdir,
        .closedir_fn = skel_closedir,
-       .init_search_op_fn = skel_init_search_op,
 
        /* File operations */
 
        .open_fn = skel_open,
        .create_file_fn = skel_create_file,
        .close_fn = skel_close_fn,
-       .read_fn = skel_vfs_read,
        .pread_fn = skel_pread,
        .pread_send_fn = skel_pread_send,
        .pread_recv_fn = skel_pread_recv,
-       .write_fn = skel_write,
        .pwrite_fn = skel_pwrite,
        .pwrite_send_fn = skel_pwrite_send,
        .pwrite_recv_fn = skel_pwrite_recv,
@@ -1146,7 +1327,6 @@ struct vfs_fn_pointers skel_transparent_fns = {
        .sendfile_fn = skel_sendfile,
        .recvfile_fn = skel_recvfile,
        .rename_fn = skel_rename,
-       .fsync_fn = skel_fsync,
        .fsync_send_fn = skel_fsync_send,
        .fsync_recv_fn = skel_fsync_recv,
        .stat_fn = skel_stat,
@@ -1188,13 +1368,16 @@ struct vfs_fn_pointers skel_transparent_fns = {
        .brl_lock_windows_fn = skel_brl_lock_windows,
        .brl_unlock_windows_fn = skel_brl_unlock_windows,
        .brl_cancel_windows_fn = skel_brl_cancel_windows,
-       .strict_lock_fn = skel_strict_lock,
+       .strict_lock_check_fn = skel_strict_lock_check,
        .translate_name_fn = skel_translate_name,
        .fsctl_fn = skel_fsctl,
        .readdir_attr_fn = skel_readdir_attr,
+       .audit_file_fn = skel_audit_file,
 
        /* DOS attributes. */
        .get_dos_attributes_fn = skel_get_dos_attributes,
+       .get_dos_attributes_send_fn = skel_get_dos_attributes_send,
+       .get_dos_attributes_recv_fn = skel_get_dos_attributes_recv,
        .fget_dos_attributes_fn = skel_fget_dos_attributes,
        .set_dos_attributes_fn = skel_set_dos_attributes,
        .fset_dos_attributes_fn = skel_fset_dos_attributes,
@@ -1207,9 +1390,6 @@ struct vfs_fn_pointers skel_transparent_fns = {
 
        /* POSIX ACL operations. */
 
-       .chmod_acl_fn = skel_chmod_acl,
-       .fchmod_acl_fn = skel_fchmod_acl,
-
        .sys_acl_get_file_fn = skel_sys_acl_get_file,
        .sys_acl_get_fd_fn = skel_sys_acl_get_fd,
        .sys_acl_blob_get_file_fn = skel_sys_acl_blob_get_file,
@@ -1220,6 +1400,8 @@ struct vfs_fn_pointers skel_transparent_fns = {
 
        /* EA operations. */
        .getxattr_fn = skel_getxattr,
+       .getxattrat_send_fn = skel_getxattrat_send,
+       .getxattrat_recv_fn = skel_getxattrat_recv,
        .fgetxattr_fn = skel_fgetxattr,
        .listxattr_fn = skel_listxattr,
        .flistxattr_fn = skel_flistxattr,
@@ -1230,11 +1412,24 @@ struct vfs_fn_pointers skel_transparent_fns = {
 
        /* aio operations */
        .aio_force_fn = skel_aio_force,
+
+       /* durable handle operations */
+       .durable_cookie_fn = skel_durable_cookie,
+       .durable_disconnect_fn = skel_durable_disconnect,
+       .durable_reconnect_fn = skel_durable_reconnect,
 };
 
 static_decl_vfs;
 NTSTATUS vfs_skel_transparent_init(TALLOC_CTX *ctx)
 {
+       /*
+        * smb_vfs_assert_all_fns() is only needed in
+        * order to have a complete example.
+        *
+        * A transparent vfs module typically don't
+        * need to implement every calls.
+        */
+       smb_vfs_assert_all_fns(&skel_transparent_fns, "skel_transparent");
        return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "skel_transparent",
                                &skel_transparent_fns);
 }