From 7e6cf43756b7643e2f0ee7ada5076f36f3a24bb7 Mon Sep 17 00:00:00 2001 From: Stefan Metzmacher Date: Thu, 8 Jan 2004 22:55:27 +0000 Subject: This patch adds a better dcerpc server infastructure. 1.) We now register endpoint servers add startup via register_backend() and later use the smb.conf 'dcerpc endpoint servers' parameter to setup the dcesrv_context 2.) each endpoint server can register at context creation time as much interfaces as it wants (multiple interfaces on one endpoint are supported!) (NOTE: there's a difference between 'endpoint server' and 'endpoint'! for details look at rpc_server/dcesrv_server.h) 3.) one endpoint can have a security descriptor registered to it self this will be checked in the future when a client wants to connect to an smb pipe endpoint. 4.) we now have a 'remote' endpoint server, which works like the ntvfs_cifs module it takes this options in the [globals] section: dcerpc remote:interfaces = srvsvc, winreg, w32time, epmapper dcerpc remote:binding = ... dcerpc remote:user = ... dcerpc remote:password = ... 5.) we currently have tree endpoint servers: epmapper, rpcecho and remote the default for the 'dcerpc endpiont servers = epmapper, rpcecho' for testing you can also do dcerpc endpoint servers = rpcecho, remote, epmapper dcerpc remote:interfaces = srvsvc, samr, netlogon 6,) please notice the the epmapper now only returns NO_ENTRIES (but I think we'll find a solution for this too:-) 7.) also there're some other stuff left, but step by step :-) This patch also includes updates for the register_subsystem() , ntvfs_init(), and some other funtions to check for duplicate subsystem registration metze (hmmm, my first large commit...I hope it works as supposed :-) (This used to be commit 917e45dafd5be4c2cd90ff425b8d6f8403122349) --- source4/rpc_server/remote/dcesrv_remote.c | 198 ++++++++++++++++++++++++++++++ 1 file changed, 198 insertions(+) create mode 100644 source4/rpc_server/remote/dcesrv_remote.c (limited to 'source4/rpc_server/remote/dcesrv_remote.c') diff --git a/source4/rpc_server/remote/dcesrv_remote.c b/source4/rpc_server/remote/dcesrv_remote.c new file mode 100644 index 0000000000..381c79135c --- /dev/null +++ b/source4/rpc_server/remote/dcesrv_remote.c @@ -0,0 +1,198 @@ +/* + Unix SMB/CIFS implementation. + remote dcerpc operations + + Copyright (C) Stefan (metze) Metzmacher 2004 + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +struct dcesrv_remote_private { + struct dcerpc_pipe *c_pipe; + void *private; +}; + +static NTSTATUS remote_op_bind(struct dcesrv_call_state *dce_call, const struct dcesrv_interface *iface) +{ + NTSTATUS status; + struct dcesrv_remote_private *private; + const char *binding = lp_parm_string(-1, "dcerpc_remote", "binding"); + const char *print_debug = lp_parm_string(-1, "dcerpc_remote", "print_debug"); + + if (!binding) { + printf("You must specify a ncacn binding string\n"); + return NT_STATUS_INVALID_PARAMETER; + } + + private = talloc_p(dce_call->conn->mem_ctx, struct dcesrv_remote_private); + if (!private) { + return NT_STATUS_NO_MEMORY; + } + + status = dcerpc_pipe_connect(&(private->c_pipe), binding, iface->ndr->uuid, iface->ndr->if_version, + lp_workgroup(), + lp_parm_string(-1, "dcerpc_remote", "username"), + lp_parm_string(-1, "dcerpc_remote", "password")); + + if (print_debug && strcasecmp("yes",print_debug) == 0) { + private->c_pipe->flags |= DCERPC_DEBUG_PRINT_BOTH; + } + + dce_call->conn->private = private; + + return NT_STATUS_OK; +} + +static void remote_op_unbind(struct dcesrv_connection *dce_conn, const struct dcesrv_interface *iface) +{ + struct dcesrv_remote_private *private = dce_conn->private; + + dcerpc_pipe_close(private->c_pipe); + + return; +} + +static NTSTATUS remote_op_dispatch(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx, void *r) +{ + struct dcesrv_remote_private *private = dce_call->conn->private; + NTSTATUS status; + uint16 opnum = dce_call->pkt.u.request.opnum; + ndr_push_flags_fn_t ndr_push_fn = dce_call->conn->iface->ndr->calls[opnum].ndr_push; + ndr_pull_flags_fn_t ndr_pull_fn = dce_call->conn->iface->ndr->calls[opnum].ndr_pull; + size_t struct_size = dce_call->conn->iface->ndr->calls[opnum].struct_size; + + status = dcerpc_ndr_request(private->c_pipe, opnum, mem_ctx, + (ndr_push_flags_fn_t) ndr_push_fn, + (ndr_pull_flags_fn_t) ndr_pull_fn, + r, struct_size); + + return status; +} + +static NTSTATUS remote_register_one_iface(struct dcesrv_context *dce_ctx, const struct dcesrv_interface *iface) +{ + int i; + + for (i=0;indr->endpoints->count;i++) { + NTSTATUS ret; + const char *name = iface->ndr->endpoints->names[i]; + + ret = dcesrv_interface_register(dce_ctx, name, iface, NULL); + if (!NT_STATUS_IS_OK(ret)) { + DEBUG(1,("remote_op_init_server: failed to register endpoint '%s'\n",name)); + return ret; + } + } + + return NT_STATUS_OK; +} + +static NTSTATUS remote_op_init_server(struct dcesrv_context *dce_ctx, const struct dcesrv_endpoint_server *ep_server) +{ + int i; + char **ifaces = str_list_make(lp_parm_string(-1,"dcerpc_remote","interfaces"),NULL); + + if (!ifaces) { + DEBUG(3,("remote_op_init_server: no interfaces configured\n")); + return NT_STATUS_OK; + } + + for (i=0;ifaces[i];i++) { + NTSTATUS ret; + struct dcesrv_interface iface; + + if (!ep_server->interface_by_name(&iface, ifaces[i])) { + DEBUG(0,("remote_op_init_server: failed to find interface = '%s'\n", ifaces[i])); + str_list_free(&ifaces); + return NT_STATUS_UNSUCCESSFUL; + } + + ret = remote_register_one_iface(dce_ctx, &iface); + if (!NT_STATUS_IS_OK(ret)) { + DEBUG(0,("remote_op_init_server: failed to register interface = '%s'\n", ifaces[i])); + str_list_free(&ifaces); + return ret; + } + } + + str_list_free(&ifaces); + return NT_STATUS_OK; +} + +static BOOL remote_fill_interface(struct dcesrv_interface *iface, const struct dcerpc_interface_table *if_tabl) +{ + iface->ndr = if_tabl; + + iface->bind = remote_op_bind; + iface->unbind = remote_op_unbind; + iface->dispatch = remote_op_dispatch; + + return True; +} + +static BOOL remote_op_interface_by_uuid(struct dcesrv_interface *iface, const char *uuid, uint32 if_version) +{ + int i; + + for (i=0;dcerpc_pipes[i];i++) { + if (dcerpc_pipes[i]->if_version == if_version && + strcmp(dcerpc_pipes[i]->uuid, uuid)==0) { + return remote_fill_interface(iface, dcerpc_pipes[i]); + } + } + + return False; +} + +static BOOL remote_op_interface_by_name(struct dcesrv_interface *iface, const char *name) +{ + int i; + + for (i=0;dcerpc_pipes[i];i++) { + if (strcmp(dcerpc_pipes[i]->name, name)==0) { + return remote_fill_interface(iface, dcerpc_pipes[i]); + } + } + + return False; +} + +NTSTATUS dcerpc_remote_init(void) +{ + NTSTATUS ret; + struct dcesrv_endpoint_server ep_server; + + ZERO_STRUCT(ep_server); + + /* fill in our name */ + ep_server.name = "remote"; + + /* fill in all the operations */ + ep_server.init_server = remote_op_init_server; + + ep_server.interface_by_uuid = remote_op_interface_by_uuid; + ep_server.interface_by_name = remote_op_interface_by_name; + + /* register ourselves with the NTVFS subsystem. */ + ret = register_backend("dcerpc", &ep_server); + if (!NT_STATUS_IS_OK(ret)) { + DEBUG(0,("Failed to register 'remote' endpoint server!\n")); + return ret; + } + + return ret; +} -- cgit