r11786: move all SMB protocol specific stuff to smb_server/smb/

metze
(This used to be commit 5fea278cb65076cea71bb6c921e51c4feffc37d7)

1 files changed, 285 insertions, 0 deletions

diff --git a/source4/smb_server/smb/search.c b/source4/smb_server/smb/search.c
new file mode 100644
index 0000000000..3ec66a0f33
--- /dev/null
+++ b/source4/smb_server/smb/search.c
@@ -0,0 +1,285 @@
+/* 
+   Unix SMB/CIFS implementation.
+   SMBsearch handling
+   Copyright (C) Andrew Tridgell 2003
+   Copyright (C) James J Myers 2003 <myersjj@samba.org>
+
+   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 file handles the parsing of transact2 requests
+*/
+
+#include "includes.h"
+#include "smb_server/smb_server.h"
+
+
+/* check req->async.status and if not OK then send an error reply */
+#define CHECK_ASYNC_STATUS do { \
+	if (!NT_STATUS_IS_OK(req->async_states->status)) { \
+		req_reply_error(req, req->async_states->status); \
+		return; \
+	}} while (0)
+	
+/* 
+   check if the backend wants to handle the request asynchronously.
+   if it wants it handled synchronously then call the send function
+   immediately
+*/
+#define REQ_ASYNC_TAIL do { \
+	if (!(req->async_states->state & NTVFS_ASYNC_STATE_ASYNC)) { \
+		req->async_states->send_fn(req); \
+	}} while (0)
+
+/* useful wrapper for talloc with NO_MEMORY reply */
+#define REQ_TALLOC(ptr) do { \
+	ptr = talloc_size(req, sizeof(*(ptr))); \
+	if (!ptr) { \
+		req_reply_error(req, NT_STATUS_NO_MEMORY); \
+		return; \
+	}} while (0)
+		
+#define CHECK_MIN_BLOB_SIZE(blob, size) do { \
+	if ((blob)->length < (size)) { \
+		return NT_STATUS_INFO_LENGTH_MISMATCH; \
+	}} while (0)
+
+/* a structure to encapsulate the state information about 
+ * an in-progress search first/next operation */
+struct search_state {
+	struct smbsrv_request *req;
+	union smb_search_data *file;
+	uint16_t last_entry_offset;
+};
+
+/*
+  fill a single entry in a search find reply 
+*/
+static BOOL find_fill_info(struct smbsrv_request *req,
+			   union smb_search_data *file)
+{
+	uint8_t *p;
+
+	if (req->out.data_size + 43 > req_max_data(req)) {
+		return False;
+	}
+	
+	req_grow_data(req, req->out.data_size + 43);
+	p = req->out.data + req->out.data_size - 43;
+
+	SCVAL(p,  0, file->search.id.reserved);
+	memcpy(p+1, file->search.id.name, 11);
+	SCVAL(p, 12, file->search.id.handle);
+	SIVAL(p, 13, file->search.id.server_cookie);
+	SIVAL(p, 17, file->search.id.client_cookie);
+	SCVAL(p, 21, file->search.attrib);
+	srv_push_dos_date(req->smb_conn, p, 22, file->search.write_time);
+	SIVAL(p, 26, file->search.size);
+	memset(p+30, ' ', 12);
+	memcpy(p+30, file->search.name, MIN(strlen(file->search.name)+1, 12));
+	SCVAL(p,42,0);
+
+	return True;
+}
+
+/* callback function for search first/next */
+static BOOL find_callback(void *private, union smb_search_data *file)
+{
+	struct search_state *state = (struct search_state *)private;
+
+	return find_fill_info(state->req, file);
+}
+
+/****************************************************************************
+ Reply to a search.
+****************************************************************************/
+void reply_search(struct smbsrv_request *req)
+{
+	union smb_search_first *sf;
+	union smb_search_next *sn;
+	uint16_t resume_key_length;
+	struct search_state state;
+	uint8_t *p;
+	NTSTATUS status;
+	enum smb_search_level level = RAW_SEARCH_SEARCH;
+	uint8_t op = CVAL(req->in.hdr,HDR_COM);
+
+	if (op == SMBffirst) {
+		level = RAW_SEARCH_FFIRST;
+	} else if (op == SMBfunique) {
+		level = RAW_SEARCH_FUNIQUE;
+	}
+
+	REQ_TALLOC(sf);
+	
+	/* parse request */
+	if (req->in.wct != 2) {
+		req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	
+	p = req->in.data;
+	p += req_pull_ascii4(req, &sf->search_first.in.pattern, 
+			     p, STR_TERMINATE);
+	if (!sf->search_first.in.pattern) {
+		req_reply_error(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+		return;
+	}
+
+	if (req_data_oob(req, p, 3)) {
+		req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	if (*p != 5) {
+		req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	resume_key_length = SVAL(p, 1);
+	p += 3;
+	
+	/* setup state for callback */
+	state.req = req;
+	state.file = NULL;
+	state.last_entry_offset = 0;
+	
+	/* construct reply */
+	req_setup_reply(req, 1, 0);
+	req_append_var_block(req, NULL, 0);
+
+	if (resume_key_length != 0) {
+		if (resume_key_length != 21 || 
+		    req_data_oob(req, p, 21) ||
+		    level == RAW_SEARCH_FUNIQUE) {
+			req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+			return;
+		}
+
+		/* do a search next operation */
+		REQ_TALLOC(sn);
+
+		sn->search_next.in.id.reserved      = CVAL(p, 0);
+		memcpy(sn->search_next.in.id.name,    p+1, 11);
+		sn->search_next.in.id.handle        = CVAL(p, 12);
+		sn->search_next.in.id.server_cookie = IVAL(p, 13);
+		sn->search_next.in.id.client_cookie = IVAL(p, 17);
+
+		sn->search_next.level = level;
+		sn->search_next.in.max_count     = SVAL(req->in.vwv, VWV(0));
+		sn->search_next.in.search_attrib = SVAL(req->in.vwv, VWV(1));
+		
+		/* call backend */
+		status = ntvfs_search_next(req, sn, &state, find_callback);
+		SSVAL(req->out.vwv, VWV(0), sn->search_next.out.count);
+	} else {
+		/* do a search first operation */
+		sf->search_first.level = level;
+		sf->search_first.in.search_attrib = SVAL(req->in.vwv, VWV(1));
+		sf->search_first.in.max_count     = SVAL(req->in.vwv, VWV(0));
+		
+		/* call backend */
+		status = ntvfs_search_first(req, sf, &state, find_callback);
+		SSVAL(req->out.vwv, VWV(0), sf->search_first.out.count);
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		req_reply_error(req, status);
+		return;
+	}
+
+	req_send_reply(req);
+}
+
+
+/****************************************************************************
+ Reply to a fclose (async reply)
+****************************************************************************/
+static void reply_fclose_send(struct smbsrv_request *req)
+{
+	CHECK_ASYNC_STATUS;
+	
+	/* construct reply */
+	req_setup_reply(req, 1, 0);
+
+	SSVAL(req->out.vwv, VWV(0), 0);
+
+	req_send_reply(req);
+}
+
+
+/****************************************************************************
+ Reply to fclose (stop directory search).
+****************************************************************************/
+void reply_fclose(struct smbsrv_request *req)
+{
+	union smb_search_close *sc;
+	uint16_t resume_key_length;
+	uint8_t *p;
+	const char *pattern;
+
+	REQ_TALLOC(sc);
+
+	/* parse request */
+	if (req->in.wct != 2) {
+		req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	
+	p = req->in.data;
+	p += req_pull_ascii4(req, &pattern, p, STR_TERMINATE);
+	if (pattern && *pattern) {
+		req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	
+	if (req_data_oob(req, p, 3)) {
+		req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	if (*p != 5) {
+		req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	resume_key_length = SVAL(p, 1);
+	p += 3;
+
+	if (resume_key_length != 21) {
+		req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+
+	if (req_data_oob(req, p, 21)) {
+		req_reply_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+
+	sc->fclose.level               = RAW_FINDCLOSE_FCLOSE;
+	sc->fclose.in.max_count        = SVAL(req->in.vwv, VWV(0));
+	sc->fclose.in.search_attrib    = SVAL(req->in.vwv, VWV(1));
+	sc->fclose.in.id.reserved      = CVAL(p, 0);
+	memcpy(sc->fclose.in.id.name,    p+1, 11);
+	sc->fclose.in.id.handle        = CVAL(p, 12);
+	sc->fclose.in.id.server_cookie = IVAL(p, 13);
+	sc->fclose.in.id.client_cookie = IVAL(p, 17);
+
+	/* do a search close operation */
+	req->async_states->state |= NTVFS_ASYNC_STATE_MAY_ASYNC;
+	req->async_states->send_fn = reply_fclose_send;
+	req->async_states->private_data = sc;
+
+	/* call backend */
+	req->async_states->status = ntvfs_search_close(req, sc);
+
+	REQ_ASYNC_TAIL;
+}