--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ SMB composite request interfaces
+
+ Copyright (C) Andrew Tridgell 2005
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ this defines the structures associated with "composite"
+ requests. Composite requests are libcli requests that are internally
+ implemented as multiple libcli/raw/ calls, but can be treated as a
+ single call via these composite calls. The composite calls are
+ particularly designed to be used in async applications
+*/
+
+
+struct smbcli_composite {
+ /* the external state - will be queried by the caller */
+ enum smbcli_request_state state;
+
+ /* the internal stage */
+ uint16_t stage;
+
+ /* the currently running sub-request */
+ struct smbcli_request *req;
+
+ /* the current requests parameter block */
+ void *req_parms;
+
+ /* the parameters of the whole composite function */
+ void *composite_parms;
+
+ /* status code when finished */
+ NTSTATUS status;
+
+ /* information on what to do on completion */
+ struct {
+ void (*fn)(struct smbcli_composite *);
+ void *private;
+ } async;
+
+};
+
+
+/*
+ a composite open/read(s)/close request that loads a whole file
+ into memory. Used as a demo of the composite system.
+*/
+struct smb_composite_loadfile {
+ struct {
+ const char *fname;
+ } in;
+ struct {
+ uint8_t *data;
+ uint32_t size;
+ } out;
+};
--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Copyright (C) Andrew Tridgell 2005
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+/*
+ a composite API for loading a whole file into memory
+*/
+
+#include "includes.h"
+#include "libcli/raw/libcliraw.h"
+#include "libcli/composite/composite.h"
+#include "librpc/gen_ndr/ndr_security.h"
+
+/* the stages of this call */
+enum loadfile_stage {LOADFILE_OPEN, LOADFILE_READ, LOADFILE_CLOSE};
+
+
+static void loadfile_handler(struct smbcli_request *req);
+
+
+/*
+ setup for the close
+*/
+static NTSTATUS setup_close(struct smbcli_composite *c,
+ struct smbcli_tree *tree, uint16_t fnum)
+{
+ union smb_close *io_close;
+
+ /* nothing to read, setup the close */
+ io_close = talloc(c, union smb_close);
+ NT_STATUS_HAVE_NO_MEMORY(io_close);
+
+ io_close->close.level = RAW_CLOSE_CLOSE;
+ io_close->close.in.fnum = fnum;
+ io_close->close.in.write_time = 0;
+
+ c->req = smb_raw_close_send(tree, io_close);
+ NT_STATUS_HAVE_NO_MEMORY(c->req);
+
+ /* call the handler again when the close is done */
+ c->stage = LOADFILE_CLOSE;
+ c->req->async.fn = loadfile_handler;
+ c->req->async.private = c;
+ c->req_parms = io_close;
+
+ return NT_STATUS_OK;
+}
+
+/*
+ called when the open is done - pull the results and setup for the
+ first readx, or close if the file is zero size
+*/
+static NTSTATUS loadfile_open(struct smbcli_composite *c,
+ struct smb_composite_loadfile *io)
+{
+ union smb_open *io_open = c->req_parms;
+ struct smbcli_tree *tree = c->req->tree;
+ union smb_read *io_read;
+ NTSTATUS status;
+
+ status = smb_raw_open_recv(c->req, c, io_open);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ /* don't allow stupidly large loads */
+ if (io_open->ntcreatex.out.size > 100*1000*1000) {
+ return NT_STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* allocate space for the file data */
+ io->out.size = io_open->ntcreatex.out.size;
+ io->out.data = talloc_array(c, uint8_t, io->out.size);
+ NT_STATUS_HAVE_NO_MEMORY(io->out.data);
+
+ if (io->out.size == 0) {
+ return setup_close(c, tree, io_open->ntcreatex.out.fnum);
+ }
+
+ /* setup for the read */
+ io_read = talloc(c, union smb_read);
+ NT_STATUS_HAVE_NO_MEMORY(io_read);
+
+ io_read->readx.level = RAW_READ_READX;
+ io_read->readx.in.fnum = io_open->ntcreatex.out.fnum;
+ io_read->readx.in.offset = 0;
+ io_read->readx.in.mincnt = MIN(32768, io->out.size);
+ io_read->readx.in.maxcnt = io_read->readx.in.mincnt;
+ io_read->readx.in.remaining = 0;
+ io_read->readx.out.data = io->out.data;
+
+ c->req = smb_raw_read_send(tree, io_read);
+ NT_STATUS_HAVE_NO_MEMORY(c->req);
+
+ /* call the handler again when the first read is done */
+ c->stage = LOADFILE_READ;
+ c->req->async.fn = loadfile_handler;
+ c->req->async.private = c;
+ c->req_parms = io_read;
+ talloc_free(io_open);
+
+ return NT_STATUS_OK;
+}
+
+
+/*
+ called when a read is done - pull the results and setup for the
+ next read, or close if the file is all done
+*/
+static NTSTATUS loadfile_read(struct smbcli_composite *c,
+ struct smb_composite_loadfile *io)
+{
+ union smb_read *io_read = c->req_parms;
+ struct smbcli_tree *tree = c->req->tree;
+ NTSTATUS status;
+
+ status = smb_raw_read_recv(c->req, io_read);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ /* we might be done */
+ if (io_read->readx.in.offset +
+ io_read->readx.out.nread == io->out.size) {
+ return setup_close(c, tree, io_read->readx.in.fnum);
+ }
+
+ /* setup for the next read */
+ io_read->readx.in.offset += io_read->readx.out.nread;
+ io_read->readx.in.mincnt = MIN(32768, io->out.size - io_read->readx.in.offset);
+ io_read->readx.out.data = io->out.data + io_read->readx.in.offset;
+
+ c->req = smb_raw_read_send(tree, io_read);
+ NT_STATUS_HAVE_NO_MEMORY(c->req);
+
+ /* call the handler again when the read is done */
+ c->req->async.fn = loadfile_handler;
+ c->req->async.private = c;
+
+ return NT_STATUS_OK;
+}
+
+/*
+ called when the close is done, check the status and cleanup
+*/
+static NTSTATUS loadfile_close(struct smbcli_composite *c,
+ struct smb_composite_loadfile *io)
+{
+ NTSTATUS status;
+
+ status = smbcli_request_simple_recv(c->req);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ c->state = SMBCLI_REQUEST_DONE;
+ if (c->async.fn) {
+ c->async.fn(c);
+ }
+
+ return NT_STATUS_OK;
+}
+
+
+/*
+ handler for completion of a sub-request in loadfile
+*/
+static void loadfile_handler(struct smbcli_request *req)
+{
+ struct smbcli_composite *c = req->async.private;
+ struct smb_composite_loadfile *io = c->composite_parms;
+
+ /* when this handler is called, the stage indicates what
+ call has just finished */
+ switch (c->stage) {
+ case LOADFILE_OPEN:
+ c->status = loadfile_open(c, io);
+ break;
+
+ case LOADFILE_READ:
+ c->status = loadfile_read(c, io);
+ break;
+
+ case LOADFILE_CLOSE:
+ c->status = loadfile_close(c, io);
+ break;
+ }
+
+ if (!NT_STATUS_IS_OK(c->status)) {
+ c->state = SMBCLI_REQUEST_ERROR;
+ if (c->async.fn) {
+ c->async.fn(c);
+ }
+ }
+}
+
+/*
+ composite loadfile call - does an openx followed by a number of readx calls,
+ followed by a close
+*/
+struct smbcli_composite *smb_composite_loadfile_send(struct smbcli_tree *tree,
+ struct smb_composite_loadfile *io)
+{
+ struct smbcli_composite *c;
+ union smb_open *io_open;
+
+ c = talloc_zero(tree, struct smbcli_composite);
+ if (c == NULL) goto failed;
+
+ c->state = SMBCLI_REQUEST_SEND;
+ c->stage = LOADFILE_OPEN;
+ c->composite_parms = io;
+
+ /* setup for the open */
+ io_open = talloc_zero(c, union smb_open);
+ if (io_open == NULL) goto failed;
+
+ io_open->ntcreatex.level = RAW_OPEN_NTCREATEX;
+ io_open->ntcreatex.in.flags = NTCREATEX_FLAGS_EXTENDED;
+ io_open->ntcreatex.in.access_mask = SEC_FILE_READ_DATA;
+ io_open->ntcreatex.in.file_attr = FILE_ATTRIBUTE_NORMAL;
+ io_open->ntcreatex.in.share_access = NTCREATEX_SHARE_ACCESS_READ | NTCREATEX_SHARE_ACCESS_WRITE;
+ io_open->ntcreatex.in.open_disposition = NTCREATEX_DISP_OPEN;
+ io_open->ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_ANONYMOUS;
+ io_open->ntcreatex.in.fname = io->in.fname;
+
+ /* send the open on its way */
+ c->req = smb_raw_open_send(tree, io_open);
+ if (c->req == NULL) goto failed;
+
+ /* setup the callback handler */
+ c->req->async.fn = loadfile_handler;
+ c->req->async.private = c;
+ c->req_parms = io_open;
+
+ return c;
+
+failed:
+ talloc_free(c);
+ return NULL;
+}
+
+
+/*
+ composite loadfile call - recv side
+*/
+NTSTATUS smb_composite_loadfile_recv(struct smbcli_composite *c, TALLOC_CTX *mem_ctx)
+{
+ NTSTATUS status;
+
+ if (!c) return NT_STATUS_NO_MEMORY;
+
+ while (c->state < SMBCLI_REQUEST_DONE) {
+ if (event_loop_once(c->req->transport->event.ctx) != 0) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ }
+
+ if (NT_STATUS_IS_OK(c->status)) {
+ struct smb_composite_loadfile *io = c->composite_parms;
+ talloc_steal(mem_ctx, io->out.data);
+ }
+
+ status = c->status;
+ talloc_free(c);
+
+ return status;
+}
+
+
+/*
+ composite loadfile call - sync interface
+*/
+NTSTATUS smb_composite_loadfile(struct smbcli_tree *tree,
+ TALLOC_CTX *mem_ctx,
+ struct smb_composite_loadfile *io)
+{
+ struct smbcli_composite *c = smb_composite_loadfile_send(tree, io);
+ return smb_composite_loadfile_recv(c, mem_ctx);
+}
--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ libcli composite function testing
+
+ Copyright (C) Andrew Tridgell 2005
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "libcli/raw/libcliraw.h"
+#include "libcli/composite/composite.h"
+
+#define BASEDIR "\\composite"
+
+static BOOL test_loadfile(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
+{
+ const char *fname = BASEDIR "\\test.txt";
+ int fnum;
+ NTSTATUS status;
+ struct smb_composite_loadfile io;
+
+ fnum = create_complex_file(cli, mem_ctx, fname);
+ smbcli_close(cli->tree, fnum);
+
+ io.in.fname = fname;
+
+ status = smb_composite_loadfile(cli->tree, mem_ctx, &io);
+ if (!NT_STATUS_IS_OK(status)) {
+ printf("Loadfile failed: %s\n", nt_errstr(status));
+ return False;
+ }
+
+ return True;
+}
+
+/*
+ basic testing of libcli composite calls
+*/
+BOOL torture_raw_composite(void)
+{
+ struct smbcli_state *cli;
+ BOOL ret = True;
+ TALLOC_CTX *mem_ctx;
+
+ if (!torture_open_connection(&cli)) {
+ return False;
+ }
+
+ mem_ctx = talloc_init("torture_raw_composite");
+
+ if (!torture_setup_dir(cli, BASEDIR)) {
+ return False;
+ }
+
+ ret &= test_loadfile(cli, mem_ctx);
+
+ smb_raw_exit(cli->session);
+ smbcli_deltree(cli->tree, BASEDIR);
+
+ torture_close_connection(cli);
+ talloc_destroy(mem_ctx);
+ return ret;
+}
git.samba.org / kai / samba.git / commitdiff