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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:20:00 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:20:00 +0000
commit8daa83a594a2e98f39d764422bfbdbc62c9efd44 (patch)
tree4099e8021376c7d8c05bdf8503093d80e9c7bad0 /source3/smbd/smb2_glue.c
parentInitial commit. (diff)
downloadsamba-8daa83a594a2e98f39d764422bfbdbc62c9efd44.tar.xz
samba-8daa83a594a2e98f39d764422bfbdbc62c9efd44.zip
Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'source3/smbd/smb2_glue.c')
-rw-r--r--source3/smbd/smb2_glue.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/source3/smbd/smb2_glue.c b/source3/smbd/smb2_glue.c
new file mode 100644
index 0000000..563aaf8
--- /dev/null
+++ b/source3/smbd/smb2_glue.c
@@ -0,0 +1,118 @@
+/*
+ Unix SMB/CIFS implementation.
+ Core SMB2 server
+
+ Copyright (C) Stefan Metzmacher 2009
+
+ 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/>.
+*/
+
+#include "includes.h"
+#include "smbd/smbd.h"
+#include "smbd/globals.h"
+#include "../libcli/smb/smb_common.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_SMB2
+
+struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req,
+ struct files_struct *fsp)
+{
+ struct smb_request *smbreq;
+ const uint8_t *inhdr = SMBD_SMB2_IN_HDR_PTR(req);
+
+ if (req->smb1req) {
+ smbreq = req->smb1req;
+ } else {
+ smbreq = talloc_zero(req, struct smb_request);
+ if (smbreq == NULL) {
+ return NULL;
+ }
+ }
+
+ smbreq->request_time = req->request_time;
+ if (req->session != NULL) {
+ smbreq->vuid = req->session->global->session_wire_id;
+ }
+ if (req->tcon != NULL) {
+ smbreq->tid = req->tcon->compat->cnum;
+ smbreq->conn = req->tcon->compat;
+ }
+ smbreq->sconn = req->sconn;
+ smbreq->xconn = req->xconn;
+ smbreq->session = req->session;
+ smbreq->smbpid = (uint16_t)IVAL(inhdr, SMB2_HDR_PID);
+ smbreq->flags2 = FLAGS2_UNICODE_STRINGS |
+ FLAGS2_32_BIT_ERROR_CODES |
+ FLAGS2_LONG_PATH_COMPONENTS |
+ FLAGS2_IS_LONG_NAME;
+
+ /* Only set FLAGS2_DFS_PATHNAMES if it's really a DFS share */
+ if (smbreq->conn != NULL &&
+ lp_host_msdfs() &&
+ lp_msdfs_root(SNUM(smbreq->conn))) {
+ if (IVAL(inhdr, SMB2_HDR_FLAGS) & SMB2_HDR_FLAG_DFS) {
+ smbreq->flags2 |= FLAGS2_DFS_PATHNAMES;
+ }
+ }
+ smbreq->mid = BVAL(inhdr, SMB2_HDR_MESSAGE_ID);
+ smbreq->chain_fsp = req->compat_chain_fsp;
+ if (fsp != NULL) {
+ smbreq->posix_pathnames =
+ (fsp->fsp_name->flags & SMB_FILENAME_POSIX_PATH);
+ }
+ smbreq->smb2req = req;
+ req->smb1req = smbreq;
+
+ return smbreq;
+}
+
+/*********************************************************
+ Are there unread bytes for recvfile ?
+*********************************************************/
+
+size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req)
+{
+ if (req->smb1req) {
+ return req->smb1req->unread_bytes;
+ }
+ return 0;
+}
+
+/*********************************************************
+ Called from file_free() to remove any chained fsp pointers.
+*********************************************************/
+
+void remove_smb2_chained_fsp(files_struct *fsp)
+{
+ struct smbd_server_connection *sconn = fsp->conn->sconn;
+ struct smbXsrv_connection *xconn = NULL;
+
+ if (sconn->client != NULL) {
+ xconn = sconn->client->connections;
+ }
+
+ for (; xconn != NULL; xconn = xconn->next) {
+ struct smbd_smb2_request *smb2req;
+
+ for (smb2req = xconn->smb2.requests; smb2req; smb2req = smb2req->next) {
+ if (smb2req->compat_chain_fsp == fsp) {
+ smb2req->compat_chain_fsp = NULL;
+ }
+ if (smb2req->smb1req && smb2req->smb1req->chain_fsp == fsp) {
+ smb2req->smb1req->chain_fsp = NULL;
+ }
+ }
+ }
+}