[SCM] Samba Shared Repository - branch master updated

Jeremy Allison jra at samba.org
Tue Jul 25 23:34:02 UTC 2017


The branch, master has been updated
       via  5005a3a libsmb: Enable "cli_notify" for SMB2+
       via  1801134 libsmb: Add cli_smb2_notify
       via  ad33964 libsmb: Add smb2cli_notify()
      from  e684658 messaging: Remove "struct messaging_backend"

https://git.samba.org/?p=samba.git;a=shortlog;h=master


- Log -----------------------------------------------------------------
commit 5005a3a6961d40fe349f76db67c980be7dc9f3ea
Author: Volker Lendecke <vl at samba.org>
Date:   Tue Jul 25 12:30:47 2017 +0200

    libsmb: Enable "cli_notify" for SMB2+
    
    Signed-off-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>
    
    Autobuild-User(master): Jeremy Allison <jra at samba.org>
    Autobuild-Date(master): Wed Jul 26 01:33:25 CEST 2017 on sn-devel-144

commit 18011343d80a28fb46894d712b22c84dce067342
Author: Volker Lendecke <vl at samba.org>
Date:   Tue Jul 25 12:12:02 2017 +0200

    libsmb: Add cli_smb2_notify
    
    We have to do the parsing manually. Looking at librpc/gen_ndr/ndr_notify.c we
    have the following code snippet:
    
      size_FileName1_0 = strlen_m(r->FileName1);
      NDR_CHECK(ndr_pull_charset(ndr, NDR_SCALARS, &r->FileName1,
                                 size_FileName1_0, sizeof(uint16_t),
                                 CH_UTF16));
    
    which means that we take strlen_m(r->FileName1) before we pull
    it off the wire. Not sure how to fix this, but that is clearly
    broken pidl output. Once that is fixed, we can convert this
    to ndr_pull_struct.
    
    Signed-off-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>

commit ad33964f8c85b67a2d2b451bece208d8bfb8cad6
Author: Volker Lendecke <vl at samba.org>
Date:   Tue Jul 25 12:11:37 2017 +0200

    libsmb: Add smb2cli_notify()
    
    Signed-off-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>

-----------------------------------------------------------------------

Summary of changes:
 ...{smb2cli_query_directory.c => smb2cli_notify.c} | 140 ++++++++-------------
 libcli/smb/smbXcli_base.h                          |  26 ++++
 libcli/smb/wscript                                 |   1 +
 source3/libsmb/cli_smb2_fnum.c                     |  92 ++++++++++++++
 source3/libsmb/cli_smb2_fnum.h                     |   5 +
 source3/libsmb/clifile.c                           |  10 +-
 6 files changed, 187 insertions(+), 87 deletions(-)
 copy libcli/smb/{smb2cli_query_directory.c => smb2cli_notify.c} (51%)


Changeset truncated at 500 lines:

diff --git a/libcli/smb/smb2cli_query_directory.c b/libcli/smb/smb2cli_notify.c
similarity index 51%
copy from libcli/smb/smb2cli_query_directory.c
copy to libcli/smb/smb2cli_notify.c
index e6321ff..0a23cf9 100644
--- a/libcli/smb/smb2cli_query_directory.c
+++ b/libcli/smb/smb2cli_notify.c
@@ -1,7 +1,7 @@
 /*
    Unix SMB/CIFS implementation.
    smb2 lib
-   Copyright (C) Volker Lendecke 2011
+   Copyright (C) Volker Lendecke 2017
 
    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
@@ -22,94 +22,69 @@
 #include "lib/util/tevent_ntstatus.h"
 #include "smb_common.h"
 #include "smbXcli_base.h"
+#include "librpc/gen_ndr/ndr_notify.h"
 
-struct smb2cli_query_directory_state {
+struct smb2cli_notify_state {
 	uint8_t fixed[32];
-	uint8_t dyn_pad[1];
+
 	struct iovec *recv_iov;
 	uint8_t *data;
 	uint32_t data_length;
 };
 
-static void smb2cli_query_directory_done(struct tevent_req *subreq);
-
-struct tevent_req *smb2cli_query_directory_send(TALLOC_CTX *mem_ctx,
-						struct tevent_context *ev,
-						struct smbXcli_conn *conn,
-						uint32_t timeout_msec,
-						struct smbXcli_session *session,
-						struct smbXcli_tcon *tcon,
-						uint8_t level,
-						uint8_t flags,
-						uint32_t file_index,
-						uint64_t fid_persistent,
-						uint64_t fid_volatile,
-						const char *mask,
-						uint32_t outbuf_len)
+static void smb2cli_notify_done(struct tevent_req *subreq);
+
+struct tevent_req *smb2cli_notify_send(TALLOC_CTX *mem_ctx,
+				       struct tevent_context *ev,
+				       struct smbXcli_conn *conn,
+				       uint32_t timeout_msec,
+				       struct smbXcli_session *session,
+				       struct smbXcli_tcon *tcon,
+				       uint32_t output_buffer_length,
+				       uint64_t fid_persistent,
+				       uint64_t fid_volatile,
+				       uint32_t completion_filter,
+				       bool recursive)
 {
 	struct tevent_req *req, *subreq;
-	struct smb2cli_query_directory_state *state;
+	struct smb2cli_notify_state *state;
 	uint8_t *fixed;
-	uint8_t *dyn;
-	size_t dyn_len;
 
 	req = tevent_req_create(mem_ctx, &state,
-				struct smb2cli_query_directory_state);
+				struct smb2cli_notify_state);
 	if (req == NULL) {
 		return NULL;
 	}
-
-	if (!convert_string_talloc(state, CH_UNIX, CH_UTF16,
-				   mask, strlen(mask),
-				   &dyn, &dyn_len)) {
-		tevent_req_oom(req);
-		return tevent_req_post(req, ev);
-	}
-
-	if (strlen(mask) == 0) {
-		TALLOC_FREE(dyn);
-		dyn_len = 0;
-	}
-
 	fixed = state->fixed;
-	SSVAL(fixed, 0, 33);
-	SCVAL(fixed, 2, level);
-	SCVAL(fixed, 3, flags);
-	SIVAL(fixed, 4, file_index);
+	SSVAL(fixed, 0, 32);
+	SSVAL(fixed, 2, recursive ? SMB2_WATCH_TREE : 0);
+	SIVAL(fixed, 4, output_buffer_length);
 	SBVAL(fixed, 8, fid_persistent);
 	SBVAL(fixed, 16, fid_volatile);
-	SSVAL(fixed, 24, SMB2_HDR_BODY + 32);
-	SSVAL(fixed, 26, dyn_len);
-	SIVAL(fixed, 28, outbuf_len);
-
-	if (dyn_len == 0) {
-		dyn = state->dyn_pad;
-		dyn_len = sizeof(state->dyn_pad);
-	}
+	SIVAL(fixed, 24, completion_filter);
+	SIVAL(fixed, 28, 0); 	/* reserved */
 
-	subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_QUERY_DIRECTORY,
+	subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_NOTIFY,
 				  0, 0, /* flags */
 				  timeout_msec,
 				  tcon,
 				  session,
 				  state->fixed, sizeof(state->fixed),
-				  dyn, dyn_len,
-				  outbuf_len); /* max_dyn_len */
+				  NULL, 0, /* dyn* */
+				  0); /* max_dyn_len */
 	if (tevent_req_nomem(subreq, req)) {
 		return tevent_req_post(req, ev);
 	}
-	tevent_req_set_callback(subreq, smb2cli_query_directory_done, req);
+	tevent_req_set_callback(subreq, smb2cli_notify_done, req);
 	return req;
 }
 
-static void smb2cli_query_directory_done(struct tevent_req *subreq)
+static void smb2cli_notify_done(struct tevent_req *subreq)
 {
-	struct tevent_req *req =
-		tevent_req_callback_data(subreq,
-		struct tevent_req);
-	struct smb2cli_query_directory_state *state =
-		tevent_req_data(req,
-		struct smb2cli_query_directory_state);
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct smb2cli_notify_state *state = tevent_req_data(
+		req, struct smb2cli_notify_state);
 	NTSTATUS status;
 	struct iovec *iov;
 	uint16_t data_offset;
@@ -141,14 +116,11 @@ static void smb2cli_query_directory_done(struct tevent_req *subreq)
 	tevent_req_done(req);
 }
 
-NTSTATUS smb2cli_query_directory_recv(struct tevent_req *req,
-				       TALLOC_CTX *mem_ctx,
-				       uint8_t **data,
-				       uint32_t *data_length)
+NTSTATUS smb2cli_notify_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+			     uint8_t **data, uint32_t *data_length)
 {
-	struct smb2cli_query_directory_state *state =
-		tevent_req_data(req,
-		struct smb2cli_query_directory_state);
+	struct smb2cli_notify_state *state = tevent_req_data(
+		req, struct smb2cli_notify_state);
 	NTSTATUS status;
 
 	if (tevent_req_is_nterror(req, &status)) {
@@ -160,20 +132,18 @@ NTSTATUS smb2cli_query_directory_recv(struct tevent_req *req,
 	return NT_STATUS_OK;
 }
 
-NTSTATUS smb2cli_query_directory(struct smbXcli_conn *conn,
-				 uint32_t timeout_msec,
-				 struct smbXcli_session *session,
-				 struct smbXcli_tcon *tcon,
-				 uint8_t level,
-				 uint8_t flags,
-				 uint32_t file_index,
-				 uint64_t fid_persistent,
-				 uint64_t fid_volatile,
-				 const char *mask,
-				 uint32_t outbuf_len,
-				 TALLOC_CTX *mem_ctx,
-				 uint8_t **data,
-				 uint32_t *data_length)
+NTSTATUS smb2cli_notify(struct smbXcli_conn *conn,
+			uint32_t timeout_msec,
+			struct smbXcli_session *session,
+			struct smbXcli_tcon *tcon,
+			uint32_t output_buffer_length,
+			uint64_t fid_persistent,
+			uint64_t fid_volatile,
+			uint32_t completion_filter,
+			bool recursive,
+			TALLOC_CTX *mem_ctx,
+			uint8_t **data,
+			uint32_t *data_length)
 {
 	TALLOC_CTX *frame = talloc_stackframe();
 	struct tevent_context *ev;
@@ -191,19 +161,17 @@ NTSTATUS smb2cli_query_directory(struct smbXcli_conn *conn,
 	if (ev == NULL) {
 		goto fail;
 	}
-	req = smb2cli_query_directory_send(frame, ev, conn, timeout_msec,
-					   session, tcon,
-					   level, flags,
-					   file_index, fid_persistent,
-					   fid_volatile, mask, outbuf_len);
+	req = smb2cli_notify_send(frame, ev, conn, timeout_msec,
+				  session, tcon, output_buffer_length,
+				  fid_persistent, fid_volatile,
+				  completion_filter, recursive);
 	if (req == NULL) {
 		goto fail;
 	}
 	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
 		goto fail;
 	}
-	status = smb2cli_query_directory_recv(req, mem_ctx,
-					      data, data_length);
+	status = smb2cli_notify_recv(req, mem_ctx, data, data_length);
  fail:
 	TALLOC_FREE(frame);
 	return status;
diff --git a/libcli/smb/smbXcli_base.h b/libcli/smb/smbXcli_base.h
index 52fec9a..338f0a4 100644
--- a/libcli/smb/smbXcli_base.h
+++ b/libcli/smb/smbXcli_base.h
@@ -806,6 +806,32 @@ NTSTATUS smb2cli_query_directory(struct smbXcli_conn *conn,
 				 uint8_t **data,
 				 uint32_t *data_length);
 
+struct tevent_req *smb2cli_notify_send(TALLOC_CTX *mem_ctx,
+				       struct tevent_context *ev,
+				       struct smbXcli_conn *conn,
+				       uint32_t timeout_msec,
+				       struct smbXcli_session *session,
+				       struct smbXcli_tcon *tcon,
+				       uint32_t output_buffer_length,
+				       uint64_t fid_persistent,
+				       uint64_t fid_volatile,
+				       uint32_t completion_filter,
+				       bool recursive);
+NTSTATUS smb2cli_notify_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+			     uint8_t **data, uint32_t *data_length);
+NTSTATUS smb2cli_notify(struct smbXcli_conn *conn,
+			uint32_t timeout_msec,
+			struct smbXcli_session *session,
+			struct smbXcli_tcon *tcon,
+			uint32_t output_buffer_length,
+			uint64_t fid_persistent,
+			uint64_t fid_volatile,
+			uint32_t completion_filter,
+			bool recursive,
+			TALLOC_CTX *mem_ctx,
+			uint8_t **data,
+			uint32_t *data_length);
+
 struct tevent_req *smb2cli_ioctl_send(TALLOC_CTX *mem_ctx,
 				      struct tevent_context *ev,
 				      struct smbXcli_conn *conn,
diff --git a/libcli/smb/wscript b/libcli/smb/wscript
index e662826..53a5c21 100644
--- a/libcli/smb/wscript
+++ b/libcli/smb/wscript
@@ -39,6 +39,7 @@ def build(bld):
            smb2cli_flush.c
            smb2cli_set_info.c
            smb2cli_query_info.c
+           smb2cli_notify.c
            smb2cli_query_directory.c
            smb2cli_ioctl.c
            smb2cli_echo.c
diff --git a/source3/libsmb/cli_smb2_fnum.c b/source3/libsmb/cli_smb2_fnum.c
index 8ee97ca..2d2667e 100644
--- a/source3/libsmb/cli_smb2_fnum.c
+++ b/source3/libsmb/cli_smb2_fnum.c
@@ -3817,3 +3817,95 @@ NTSTATUS cli_smb2_ftruncate(struct cli_state *cli,
 	TALLOC_FREE(frame);
 	return status;
 }
+
+NTSTATUS cli_smb2_notify(struct cli_state *cli, uint16_t fnum,
+			 uint32_t buffer_size, uint32_t completion_filter,
+			 bool recursive, TALLOC_CTX *mem_ctx,
+			 struct notify_change **pchanges,
+			 uint32_t *pnum_changes)
+{
+	NTSTATUS status;
+	struct smb2_hnd *ph = NULL;
+	TALLOC_CTX *frame = talloc_stackframe();
+	uint8_t *base;
+	uint32_t len, ofs;
+	struct notify_change *changes = NULL;
+	size_t num_changes = 0;
+
+	if (smbXcli_conn_has_async_calls(cli->conn)) {
+		/*
+		 * Can't use sync call while an async call is in flight
+		 */
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto fail;
+	}
+
+	if (smbXcli_conn_protocol(cli->conn) < PROTOCOL_SMB2_02) {
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto fail;
+	}
+
+	status = map_fnum_to_smb2_handle(cli, fnum, &ph);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto fail;
+	}
+
+	status = smb2cli_notify(cli->conn, cli->timeout,
+				cli->smb2.session, cli->smb2.tcon,
+				buffer_size,
+				ph->fid_persistent, ph->fid_volatile,
+				completion_filter, recursive,
+				frame, &base, &len);
+
+	ofs = 0;
+
+	while (len - ofs >= 12) {
+		struct notify_change *tmp;
+		struct notify_change *c;
+		uint32_t next_ofs = IVAL(base, ofs);
+		uint32_t file_name_length = IVAL(base, ofs+8);
+		size_t namelen;
+		bool ok;
+
+		tmp = talloc_realloc(frame, changes, struct notify_change,
+				     num_changes + 1);
+		if (tmp == NULL) {
+			status = NT_STATUS_NO_MEMORY;
+			goto fail;
+		}
+		changes = tmp;
+		c = &changes[num_changes];
+		num_changes += 1;
+
+		if (smb_buffer_oob(len, ofs, next_ofs) ||
+		    smb_buffer_oob(len, ofs+12, file_name_length)) {
+			status = NT_STATUS_INVALID_NETWORK_RESPONSE;
+			goto fail;
+		}
+
+		c->action = IVAL(base, ofs+4);
+
+		ok = convert_string_talloc(changes, CH_UTF16LE, CH_UNIX,
+					   base + ofs + 12, file_name_length,
+					   &c->name, &namelen);
+		if (!ok) {
+			status = NT_STATUS_INVALID_NETWORK_RESPONSE;
+			goto fail;
+		}
+
+		if (next_ofs == 0) {
+			break;
+		}
+		ofs += next_ofs;
+	}
+
+	*pchanges = talloc_move(mem_ctx, &changes);
+	*pnum_changes = num_changes;
+	status = NT_STATUS_OK;
+
+fail:
+	cli->raw_status = status;
+
+	TALLOC_FREE(frame);
+	return status;
+}
diff --git a/source3/libsmb/cli_smb2_fnum.h b/source3/libsmb/cli_smb2_fnum.h
index 8e240c6..402801b 100644
--- a/source3/libsmb/cli_smb2_fnum.h
+++ b/source3/libsmb/cli_smb2_fnum.h
@@ -224,4 +224,9 @@ NTSTATUS cli_smb2_shadow_copy_data(TALLOC_CTX *mem_ctx,
 NTSTATUS cli_smb2_ftruncate(struct cli_state *cli,
 			uint16_t fnum,
 			uint64_t newsize);
+NTSTATUS cli_smb2_notify(struct cli_state *cli, uint16_t fnum,
+			 uint32_t buffer_size, uint32_t completion_filter,
+			 bool recursive, TALLOC_CTX *mem_ctx,
+			 struct notify_change **pchanges,
+			 uint32_t *pnum_changes);
 #endif /* __SMB2CLI_FNUM_H__ */
diff --git a/source3/libsmb/clifile.c b/source3/libsmb/clifile.c
index 1455fbd..828448f 100644
--- a/source3/libsmb/clifile.c
+++ b/source3/libsmb/clifile.c
@@ -5602,11 +5602,19 @@ NTSTATUS cli_notify(struct cli_state *cli, uint16_t fnum, uint32_t buffer_size,
 		    TALLOC_CTX *mem_ctx, uint32_t *pnum_changes,
 		    struct notify_change **pchanges)
 {
-	TALLOC_CTX *frame = talloc_stackframe();
+	TALLOC_CTX *frame;
 	struct tevent_context *ev;
 	struct tevent_req *req;
 	NTSTATUS status = NT_STATUS_NO_MEMORY;
 
+	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
+		return cli_smb2_notify(cli, fnum, buffer_size,
+				       completion_filter, recursive,
+				       mem_ctx, pchanges, pnum_changes);
+	}
+
+	frame = talloc_stackframe();
+
 	if (smbXcli_conn_has_async_calls(cli->conn)) {
 		/*
 		 * Can't use sync call while an async call is in flight


-- 
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