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-rw-r--r--source4/libcli/smb2/util.c363
1 files changed, 363 insertions, 0 deletions
diff --git a/source4/libcli/smb2/util.c b/source4/libcli/smb2/util.c
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+++ b/source4/libcli/smb2/util.c
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+/*
+ Unix SMB/CIFS implementation.
+
+ SMB2 client utility functions
+
+ 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 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 "libcli/raw/libcliraw.h"
+#include "libcli/raw/raw_proto.h"
+#include "libcli/smb2/smb2.h"
+#include "libcli/smb2/smb2_calls.h"
+#include "libcli/smb_composite/smb_composite.h"
+#include "librpc/gen_ndr/ndr_security.h"
+
+/*
+ simple close wrapper with SMB2
+*/
+NTSTATUS smb2_util_close(struct smb2_tree *tree, struct smb2_handle h)
+{
+ struct smb2_close c;
+
+ ZERO_STRUCT(c);
+ c.in.file.handle = h;
+
+ return smb2_close(tree, &c);
+}
+
+/*
+ unlink a file with SMB2
+*/
+NTSTATUS smb2_util_unlink(struct smb2_tree *tree, const char *fname)
+{
+ union smb_unlink io;
+
+ ZERO_STRUCT(io);
+ io.unlink.in.pattern = fname;
+
+ return smb2_composite_unlink(tree, &io);
+}
+
+
+/*
+ rmdir with SMB2
+*/
+NTSTATUS smb2_util_rmdir(struct smb2_tree *tree, const char *dname)
+{
+ struct smb_rmdir io;
+
+ ZERO_STRUCT(io);
+ io.in.path = dname;
+
+ return smb2_composite_rmdir(tree, &io);
+}
+
+
+/*
+ mkdir with SMB2
+*/
+NTSTATUS smb2_util_mkdir(struct smb2_tree *tree, const char *dname)
+{
+ union smb_mkdir io;
+
+ ZERO_STRUCT(io);
+ io.mkdir.level = RAW_MKDIR_MKDIR;
+ io.mkdir.in.path = dname;
+
+ return smb2_composite_mkdir(tree, &io);
+}
+
+
+/*
+ set file attribute with SMB2
+*/
+NTSTATUS smb2_util_setatr(struct smb2_tree *tree, const char *name, uint32_t attrib)
+{
+ struct smb2_create cr = {0};
+ struct smb2_handle h1 = {{0}};
+ union smb_setfileinfo setinfo;
+ NTSTATUS status;
+
+ cr = (struct smb2_create) {
+ .in.desired_access = SEC_FILE_WRITE_ATTRIBUTE,
+ .in.share_access = NTCREATEX_SHARE_ACCESS_MASK,
+ .in.create_disposition = FILE_OPEN,
+ .in.fname = name,
+ };
+ status = smb2_create(tree, tree, &cr);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ h1 = cr.out.file.handle;
+
+ setinfo = (union smb_setfileinfo) {
+ .basic_info.level = RAW_SFILEINFO_BASIC_INFORMATION,
+ .basic_info.in.file.handle = h1,
+ .basic_info.in.attrib = attrib,
+ };
+
+ status = smb2_setinfo_file(tree, &setinfo);
+ if (!NT_STATUS_IS_OK(status)) {
+ smb2_util_close(tree, h1);
+ return status;
+ }
+
+ smb2_util_close(tree, h1);
+ return NT_STATUS_OK;
+}
+
+
+/*
+ get file attribute with SMB2
+*/
+NTSTATUS smb2_util_getatr(struct smb2_tree *tree, const char *fname,
+ uint16_t *attr, size_t *size, time_t *t)
+{
+ union smb_fileinfo parms;
+ NTSTATUS status;
+ struct smb2_create create_io = {0};
+
+ create_io.in.desired_access = SEC_FILE_READ_ATTRIBUTE;
+ create_io.in.share_access = NTCREATEX_SHARE_ACCESS_NONE;
+ create_io.in.create_disposition = FILE_OPEN;
+ create_io.in.fname = fname;
+ status = smb2_create(tree, tree, &create_io);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ ZERO_STRUCT(parms);
+ parms.all_info2.level = RAW_FILEINFO_SMB2_ALL_INFORMATION;
+ parms.all_info2.in.file.handle = create_io.out.file.handle;
+ status = smb2_getinfo_file(tree, tree, &parms);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ status = smb2_util_close(tree, create_io.out.file.handle);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ if (size) {
+ *size = parms.all_info2.out.size;
+ }
+
+ if (t) {
+ *t = parms.all_info2.out.write_time;
+ }
+
+ if (attr) {
+ *attr = parms.all_info2.out.attrib;
+ }
+
+ return status;
+}
+
+
+/*
+ recursively descend a tree deleting all files
+ returns the number of files deleted, or -1 on error
+*/
+int smb2_deltree(struct smb2_tree *tree, const char *dname)
+{
+ NTSTATUS status;
+ uint32_t total_deleted = 0;
+ unsigned int count, i;
+ union smb_search_data *list;
+ TALLOC_CTX *tmp_ctx = talloc_new(tree);
+ struct smb2_find f;
+ struct smb2_create create_parm;
+ bool did_delete;
+
+ /* it might be a file */
+ status = smb2_util_unlink(tree, dname);
+ if (NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return 1;
+ }
+ if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND) ||
+ NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_PATH_NOT_FOUND) ||
+ NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_FILE)) {
+ talloc_free(tmp_ctx);
+ return 0;
+ }
+
+ if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
+ /* it could be read-only */
+ smb2_util_setatr(tree, dname, FILE_ATTRIBUTE_NORMAL);
+ status = smb2_util_unlink(tree, dname);
+ }
+ if (NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return 1;
+ }
+
+ ZERO_STRUCT(create_parm);
+ create_parm.in.desired_access = SEC_FILE_READ_DATA;
+ create_parm.in.share_access =
+ NTCREATEX_SHARE_ACCESS_READ|
+ NTCREATEX_SHARE_ACCESS_WRITE;
+ create_parm.in.create_options = NTCREATEX_OPTIONS_DIRECTORY;
+ create_parm.in.create_disposition = NTCREATEX_DISP_OPEN;
+ create_parm.in.fname = dname;
+
+ status = smb2_create(tree, tmp_ctx, &create_parm);
+ if (NT_STATUS_IS_ERR(status)) {
+ DEBUG(2,("Failed to open %s - %s\n", dname, nt_errstr(status)));
+ talloc_free(tmp_ctx);
+ return -1;
+ }
+
+
+ do {
+ did_delete = false;
+
+ ZERO_STRUCT(f);
+ f.in.file.handle = create_parm.out.file.handle;
+ f.in.max_response_size = 0x10000;
+ f.in.level = SMB2_FIND_NAME_INFO;
+ f.in.pattern = "*";
+
+ status = smb2_find_level(tree, tmp_ctx, &f, &count, &list);
+ if (NT_STATUS_IS_ERR(status)) {
+ DEBUG(2,("Failed to list %s - %s\n",
+ dname, nt_errstr(status)));
+ smb2_util_close(tree, create_parm.out.file.handle);
+ talloc_free(tmp_ctx);
+ return -1;
+ }
+
+ for (i=0;i<count;i++) {
+ char *name;
+ if (strcmp(".", list[i].name_info.name.s) == 0 ||
+ strcmp("..", list[i].name_info.name.s) == 0) {
+ continue;
+ }
+ name = talloc_asprintf(tmp_ctx, "%s\\%s", dname, list[i].name_info.name.s);
+ status = smb2_util_unlink(tree, name);
+ if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
+ /* it could be read-only */
+ smb2_util_setatr(tree, name, FILE_ATTRIBUTE_NORMAL);
+ status = smb2_util_unlink(tree, name);
+ }
+
+ if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) {
+ int ret;
+ ret = smb2_deltree(tree, name);
+ if (ret > 0) total_deleted += ret;
+ }
+ talloc_free(name);
+ if (NT_STATUS_IS_OK(status)) {
+ total_deleted++;
+ did_delete = true;
+ }
+ }
+ } while (did_delete);
+
+ smb2_util_close(tree, create_parm.out.file.handle);
+
+ status = smb2_util_rmdir(tree, dname);
+ if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
+ /* it could be read-only */
+ smb2_util_setatr(tree, dname, FILE_ATTRIBUTE_NORMAL);
+ status = smb2_util_rmdir(tree, dname);
+ }
+
+ if (NT_STATUS_IS_ERR(status)) {
+ DEBUG(2,("Failed to delete %s - %s\n",
+ dname, nt_errstr(status)));
+ talloc_free(tmp_ctx);
+ return -1;
+ }
+
+ talloc_free(tmp_ctx);
+
+ return total_deleted;
+}
+
+/*
+ check if two SMB2 file handles are the same
+*/
+bool smb2_util_handle_equal(const struct smb2_handle h1,
+ const struct smb2_handle h2)
+{
+ return (h1.data[0] == h2.data[0]) && (h1.data[1] == h2.data[1]);
+}
+
+bool smb2_util_handle_empty(const struct smb2_handle h)
+{
+ struct smb2_handle empty;
+
+ ZERO_STRUCT(empty);
+
+ return smb2_util_handle_equal(h, empty);
+}
+
+/****************************************************************************
+send a qpathinfo SMB_QUERY_FILE_ALT_NAME_INFO call
+****************************************************************************/
+NTSTATUS smb2_qpathinfo_alt_name(TALLOC_CTX *ctx, struct smb2_tree *tree,
+ const char *fname, const char **alt_name)
+{
+ union smb_fileinfo parms;
+ TALLOC_CTX *mem_ctx;
+ NTSTATUS status;
+ struct smb2_create create_io = {0};
+
+ mem_ctx = talloc_new(ctx);
+ if (!mem_ctx) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ create_io.in.desired_access = SEC_FILE_READ_ATTRIBUTE;
+ create_io.in.share_access = NTCREATEX_SHARE_ACCESS_NONE;
+ create_io.in.create_disposition = FILE_OPEN;
+ create_io.in.fname = fname;
+ status = smb2_create(tree, mem_ctx, &create_io);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(mem_ctx);
+ return status;
+ }
+
+ parms.alt_name_info.level = RAW_FILEINFO_SMB2_ALT_NAME_INFORMATION;
+ parms.alt_name_info.in.file.handle = create_io.out.file.handle;
+
+ status = smb2_getinfo_file(tree, mem_ctx, &parms);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(mem_ctx);
+ return status;
+ }
+
+ status = smb2_util_close(tree, create_io.out.file.handle);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(mem_ctx);
+ return status;
+ }
+
+ if (!parms.alt_name_info.out.fname.s) {
+ *alt_name = talloc_strdup(ctx, "");
+ } else {
+ *alt_name = talloc_strdup(ctx,
+ parms.alt_name_info.out.fname.s);
+ }
+
+ talloc_free(mem_ctx);
+
+ return NT_STATUS_OK;
+}