Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 283 insertions, 0 deletions

diff --git a/source4/smb_server/smb/search.c b/source4/smb_server/smb/search.c
new file mode 100644
index 0000000..bf47217
--- /dev/null
+++ b/source4/smb_server/smb/search.c
@@ -0,0 +1,283 @@
+/* 
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+/*
+   This file handles the parsing of transact2 requests
+*/
+
+#include "includes.h"
+#include "smb_server/smb_server.h"
+#include "ntvfs/ntvfs.h"
+
+
+/* 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,
+			   const 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_data, const union smb_search_data *file)
+{
+	struct search_state *state = (struct search_state *)private_data;
+
+	return find_fill_info(state->req, file);
+}
+
+/****************************************************************************
+ Reply to a search first (async reply)
+****************************************************************************/
+static void reply_search_first_send(struct ntvfs_request *ntvfs)
+{
+	struct smbsrv_request *req;
+	union smb_search_first *sf;
+
+	SMBSRV_CHECK_ASYNC_STATUS(sf, union smb_search_first);
+
+	SSVAL(req->out.vwv, VWV(0), sf->search_first.out.count);
+
+	smbsrv_send_reply(req);
+}
+
+/****************************************************************************
+ Reply to a search next (async reply)
+****************************************************************************/
+static void reply_search_next_send(struct ntvfs_request *ntvfs)
+{
+	struct smbsrv_request *req;
+	union smb_search_next *sn;
+	
+	SMBSRV_CHECK_ASYNC_STATUS(sn, union smb_search_next);
+
+	SSVAL(req->out.vwv, VWV(0), sn->search_next.out.count);
+
+	smbsrv_send_reply(req);
+}
+
+/****************************************************************************
+ Reply to a search.
+****************************************************************************/
+void smbsrv_reply_search(struct smbsrv_request *req)
+{
+	union smb_search_first *sf;
+	uint16_t resume_key_length;
+	struct search_state *state;
+	uint8_t *p;
+	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;
+	}
+
+	/* parse request */
+	if (req->in.wct != 2) {
+		smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+
+	SMBSRV_TALLOC_IO_PTR(sf, union smb_search_first);
+
+	p = req->in.data;
+	p += req_pull_ascii4(&req->in.bufinfo, &sf->search_first.in.pattern, 
+			     p, STR_TERMINATE);
+	if (!sf->search_first.in.pattern) {
+		smbsrv_send_error(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+		return;
+	}
+
+	if (req_data_oob(&req->in.bufinfo, p, 3)) {
+		smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	if (*p != 5) {
+		smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	resume_key_length = SVAL(p, 1);
+	p += 3;
+	
+	/* setup state for callback */
+	state = talloc(req, struct search_state);
+	if (!state) {
+		smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
+		return;
+	}
+
+	state->req = req;
+	state->file = NULL;
+	state->last_entry_offset = 0;
+
+	/* construct reply */
+	smbsrv_setup_reply(req, 1, 0);
+	SSVAL(req->out.vwv, VWV(0), 0);
+	req_append_var_block(req, NULL, 0);
+
+	if (resume_key_length != 0) {
+		union smb_search_next *sn;
+
+		if (resume_key_length != 21 || 
+		    req_data_oob(&req->in.bufinfo, p, 21) ||
+		    level == RAW_SEARCH_FUNIQUE) {
+			smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
+			return;
+		}
+
+		/* do a search next operation */
+		SMBSRV_TALLOC_IO_PTR(sn, union smb_search_next);
+		SMBSRV_SETUP_NTVFS_REQUEST(reply_search_next_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
+
+		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.data_level = RAW_SEARCH_DATA_SEARCH;
+		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 */
+		SMBSRV_CALL_NTVFS_BACKEND(ntvfs_search_next(req->ntvfs, sn, state, find_callback));
+	} else {
+		SMBSRV_SETUP_NTVFS_REQUEST(reply_search_first_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
+
+		/* do a search first operation */
+		sf->search_first.level = level;
+		sf->search_first.data_level = RAW_SEARCH_DATA_SEARCH;
+		sf->search_first.in.search_attrib = SVAL(req->in.vwv, VWV(1));
+		sf->search_first.in.max_count     = SVAL(req->in.vwv, VWV(0));
+
+		SMBSRV_CALL_NTVFS_BACKEND(ntvfs_search_first(req->ntvfs, sf, state, find_callback));
+	}
+}
+
+
+/****************************************************************************
+ Reply to a fclose (async reply)
+****************************************************************************/
+static void reply_fclose_send(struct ntvfs_request *ntvfs)
+{
+	struct smbsrv_request *req;
+
+	SMBSRV_CHECK_ASYNC_STATUS_SIMPLE;
+
+	/* construct reply */
+	smbsrv_setup_reply(req, 1, 0);
+
+	SSVAL(req->out.vwv, VWV(0), 0);
+
+	smbsrv_send_reply(req);
+}
+
+
+/****************************************************************************
+ Reply to fclose (stop directory search).
+****************************************************************************/
+void smbsrv_reply_fclose(struct smbsrv_request *req)
+{
+	union smb_search_close *sc;
+	uint16_t resume_key_length;
+	uint8_t *p;
+	const char *pattern;
+
+	/* parse request */
+	if (req->in.wct != 2) {
+		smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+
+	SMBSRV_TALLOC_IO_PTR(sc, union smb_search_close);
+	SMBSRV_SETUP_NTVFS_REQUEST(reply_fclose_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
+
+	p = req->in.data;
+	p += req_pull_ascii4(&req->in.bufinfo, &pattern, p, STR_TERMINATE);
+	if (pattern && *pattern) {
+		smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	
+	if (req_data_oob(&req->in.bufinfo, p, 3)) {
+		smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	if (*p != 5) {
+		smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+	resume_key_length = SVAL(p, 1);
+	p += 3;
+
+	if (resume_key_length != 21) {
+		smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
+		return;
+	}
+
+	if (req_data_oob(&req->in.bufinfo, p, 21)) {
+		smbsrv_send_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);
+
+	SMBSRV_CALL_NTVFS_BACKEND(ntvfs_search_close(req->ntvfs, sc));
+
+}