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-rw-r--r--source3/rpc_server/mdssvc/srv_mdssvc_nt.c319
1 files changed, 319 insertions, 0 deletions
diff --git a/source3/rpc_server/mdssvc/srv_mdssvc_nt.c b/source3/rpc_server/mdssvc/srv_mdssvc_nt.c
new file mode 100644
index 0000000..9a16624
--- /dev/null
+++ b/source3/rpc_server/mdssvc/srv_mdssvc_nt.c
@@ -0,0 +1,319 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * RPC Pipe client / server routines for mdssvc
+ * Copyright (C) Ralph Boehme 2014
+ *
+ * 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 "messages.h"
+#include "ntdomain.h"
+#include "rpc_server/rpc_server.h"
+#include "rpc_server/rpc_config.h"
+#include "rpc_server/mdssvc/srv_mdssvc_nt.h"
+#include "libcli/security/security_token.h"
+#include "libcli/security/dom_sid.h"
+#include "gen_ndr/auth.h"
+#include "mdssvc.h"
+#include "smbd/globals.h"
+
+#include "librpc/rpc/dcesrv_core.h"
+#include "librpc/gen_ndr/ndr_mdssvc.h"
+#include "librpc/gen_ndr/ndr_mdssvc_scompat.h"
+#include "lib/global_contexts.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_RPC_SRV
+
+static NTSTATUS create_mdssvc_policy_handle(TALLOC_CTX *mem_ctx,
+ struct pipes_struct *p,
+ int snum,
+ const char *sharename,
+ const char *path,
+ struct policy_handle *handle)
+{
+ struct dcesrv_call_state *dce_call = p->dce_call;
+ struct auth_session_info *session_info =
+ dcesrv_call_session_info(dce_call);
+ struct mds_ctx *mds_ctx;
+ NTSTATUS status;
+
+ ZERO_STRUCTP(handle);
+
+ status = mds_init_ctx(mem_ctx,
+ messaging_tevent_context(p->msg_ctx),
+ p->msg_ctx,
+ session_info,
+ snum,
+ sharename,
+ path,
+ &mds_ctx);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_DEBUG("mds_init_ctx() path [%s] failed: %s\n",
+ path, nt_errstr(status));
+ return status;
+ }
+
+ if (!create_policy_hnd(p, handle, 0, mds_ctx)) {
+ talloc_free(mds_ctx);
+ ZERO_STRUCTP(handle);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ return NT_STATUS_OK;
+}
+
+void _mdssvc_open(struct pipes_struct *p, struct mdssvc_open *r)
+{
+ const struct loadparm_substitution *lp_sub =
+ loadparm_s3_global_substitution();
+ int snum;
+ char *outpath = discard_const_p(char, r->out.share_path);
+ char *fake_path = NULL;
+ char *path;
+ NTSTATUS status;
+
+ DBG_DEBUG("[%s]\n", r->in.share_name);
+
+ *r->out.device_id = *r->in.device_id;
+ *r->out.unkn2 = *r->in.unkn2;
+ *r->out.unkn3 = *r->in.unkn3;
+ outpath[0] = '\0';
+
+ snum = lp_servicenumber(r->in.share_name);
+ if (!VALID_SNUM(snum)) {
+ return;
+ }
+
+ path = lp_path(talloc_tos(), lp_sub, snum);
+ if (path == NULL) {
+ DBG_ERR("Couldn't create path for %s\n",
+ r->in.share_name);
+ p->fault_state = DCERPC_FAULT_CANT_PERFORM;
+ return;
+ }
+
+ fake_path = talloc_asprintf(p->mem_ctx, "/%s", r->in.share_name);
+ if (fake_path == NULL) {
+ DBG_ERR("Couldn't create fake share path for %s\n",
+ r->in.share_name);
+ talloc_free(path);
+ p->fault_state = DCERPC_FAULT_CANT_PERFORM;
+ return;
+ }
+
+ status = create_mdssvc_policy_handle(p->mem_ctx, p,
+ snum,
+ r->in.share_name,
+ path,
+ r->out.handle);
+ if (NT_STATUS_EQUAL(status, NT_STATUS_WRONG_VOLUME)) {
+ ZERO_STRUCTP(r->out.handle);
+ talloc_free(path);
+ talloc_free(fake_path);
+ return;
+ }
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_ERR("Couldn't create policy handle for %s\n",
+ r->in.share_name);
+ talloc_free(path);
+ talloc_free(fake_path);
+ p->fault_state = DCERPC_FAULT_CANT_PERFORM;
+ return;
+ }
+
+ strlcpy(outpath, fake_path, 1024);
+ talloc_free(path);
+ talloc_free(fake_path);
+ return;
+}
+
+void _mdssvc_unknown1(struct pipes_struct *p, struct mdssvc_unknown1 *r)
+{
+ struct mds_ctx *mds_ctx;
+ NTSTATUS status;
+
+ mds_ctx = find_policy_by_hnd(p,
+ r->in.handle,
+ DCESRV_HANDLE_ANY,
+ struct mds_ctx,
+ &status);
+ if (!NT_STATUS_IS_OK(status)) {
+ if (ndr_policy_handle_empty(r->in.handle)) {
+ p->fault_state = 0;
+ } else {
+ p->fault_state = DCERPC_NCA_S_PROTO_ERROR;
+ }
+ *r->out.status = 0;
+ *r->out.flags = 0;
+ *r->out.unkn7 = 0;
+ return;
+ }
+
+ DEBUG(10, ("%s: path: %s\n", __func__, mds_ctx->spath));
+
+ *r->out.status = 0;
+ *r->out.flags = 0x6b000001;
+ *r->out.unkn7 = 0;
+
+ return;
+}
+
+void _mdssvc_cmd(struct pipes_struct *p, struct mdssvc_cmd *r)
+{
+ struct dcesrv_call_state *dce_call = p->dce_call;
+ struct auth_session_info *session_info =
+ dcesrv_call_session_info(dce_call);
+ bool ok;
+ struct mds_ctx *mds_ctx;
+ NTSTATUS status;
+
+ mds_ctx = find_policy_by_hnd(p,
+ r->in.handle,
+ DCESRV_HANDLE_ANY,
+ struct mds_ctx,
+ &status);
+ if (!NT_STATUS_IS_OK(status)) {
+ if (ndr_policy_handle_empty(r->in.handle)) {
+ p->fault_state = 0;
+ } else {
+ p->fault_state = DCERPC_NCA_S_PROTO_ERROR;
+ }
+ r->out.response_blob->size = 0;
+ *r->out.fragment = 0;
+ *r->out.unkn9 = 0;
+ return;
+ }
+
+ DEBUG(10, ("%s: path: %s\n", __func__, mds_ctx->spath));
+
+ ok = security_token_is_sid(session_info->security_token,
+ &mds_ctx->sid);
+ if (!ok) {
+ struct dom_sid_buf buf;
+ DBG_WARNING("not the same sid: %s\n",
+ dom_sid_str_buf(&mds_ctx->sid, &buf));
+ p->fault_state = DCERPC_FAULT_ACCESS_DENIED;
+ return;
+ }
+
+ if (geteuid() != mds_ctx->uid) {
+ DEBUG(0, ("uid mismatch: %d/%d\n", geteuid(), mds_ctx->uid));
+ smb_panic("uid mismatch");
+ }
+
+ if (r->in.request_blob.size > MAX_SL_FRAGMENT_SIZE) {
+ DEBUG(1, ("%s: request size too large\n", __func__));
+ p->fault_state = DCERPC_FAULT_CANT_PERFORM;
+ return;
+ }
+
+ if (r->in.request_blob.length > MAX_SL_FRAGMENT_SIZE) {
+ DEBUG(1, ("%s: request length too large\n", __func__));
+ p->fault_state = DCERPC_FAULT_CANT_PERFORM;
+ return;
+ }
+
+ if (r->in.max_fragment_size1 > MAX_SL_FRAGMENT_SIZE) {
+ DEBUG(1, ("%s: request fragment size too large: %u\n",
+ __func__, (unsigned)r->in.max_fragment_size1));
+ p->fault_state = DCERPC_FAULT_CANT_PERFORM;
+ return;
+ }
+
+ /* We currently don't use fragmentation at the mdssvc RPC layer */
+ *r->out.fragment = 0;
+
+ ok = mds_dispatch(mds_ctx,
+ &r->in.request_blob,
+ r->out.response_blob,
+ r->in.max_fragment_size1);
+ if (ok) {
+ *r->out.unkn9 = 0;
+ } else {
+ /* FIXME: just interpolating from AFP, needs verification */
+ *r->out.unkn9 = UINT32_MAX;
+ }
+
+ return;
+}
+
+void _mdssvc_close(struct pipes_struct *p, struct mdssvc_close *r)
+{
+ struct mds_ctx *mds_ctx;
+ NTSTATUS status;
+
+ mds_ctx = find_policy_by_hnd(p,
+ r->in.in_handle,
+ DCESRV_HANDLE_ANY,
+ struct mds_ctx,
+ &status);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_WARNING("invalid handle\n");
+ if (ndr_policy_handle_empty(r->in.in_handle)) {
+ p->fault_state = 0;
+ } else {
+ p->fault_state = DCERPC_NCA_S_PROTO_ERROR;
+ }
+ return;
+ }
+
+ DBG_DEBUG("Close mdssvc handle for path: %s\n", mds_ctx->spath);
+ TALLOC_FREE(mds_ctx);
+
+ *r->out.out_handle = *r->in.in_handle;
+ close_policy_hnd(p, r->in.in_handle);
+
+ *r->out.status = 0;
+
+ return;
+}
+
+static NTSTATUS mdssvc__op_init_server(struct dcesrv_context *dce_ctx,
+ const struct dcesrv_endpoint_server *ep_server);
+
+static NTSTATUS mdssvc__op_shutdown_server(struct dcesrv_context *dce_ctx,
+ const struct dcesrv_endpoint_server *ep_server);
+
+#define DCESRV_INTERFACE_MDSSVC_INIT_SERVER \
+ mdssvc_init_server
+
+#define DCESRV_INTERFACE_MDSSVC_SHUTDOWN_SERVER \
+ mdssvc_shutdown_server
+
+static NTSTATUS mdssvc_init_server(struct dcesrv_context *dce_ctx,
+ const struct dcesrv_endpoint_server *ep_server)
+{
+ struct messaging_context *msg_ctx = global_messaging_context();
+ bool ok;
+
+ ok = mds_init(msg_ctx);
+ if (!ok) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ return mdssvc__op_init_server(dce_ctx, ep_server);
+}
+
+static NTSTATUS mdssvc_shutdown_server(struct dcesrv_context *dce_ctx,
+ const struct dcesrv_endpoint_server *ep_server)
+{
+ mds_shutdown();
+
+ return mdssvc__op_shutdown_server(dce_ctx, ep_server);
+}
+
+/* include the generated boilerplate */
+#include "librpc/gen_ndr/ndr_mdssvc_scompat.c"
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-27 03:19:22 +0000