1/* 2 Unix SMB/CIFS implementation. 3 4 handling for browsing dgram requests 5 6 Copyright (C) Jelmer Vernooij 2005 7 Heavily based on ntlogon.c 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. 21*/ 22 23#include "includes.h" 24#include "libcli/dgram/libdgram.h" 25#include "lib/socket/socket.h" 26#include "libcli/resolve/resolve.h" 27#include "librpc/gen_ndr/ndr_nbt.h" 28#include "param/param.h" 29 30NTSTATUS dgram_mailslot_browse_send(struct nbt_dgram_socket *dgmsock, 31 struct nbt_name *dest_name, 32 struct socket_address *dest, 33 struct nbt_name *src_name, 34 struct nbt_browse_packet *request) 35{ 36 NTSTATUS status; 37 enum ndr_err_code ndr_err; 38 DATA_BLOB blob; 39 TALLOC_CTX *tmp_ctx = talloc_new(dgmsock); 40 41 ndr_err = ndr_push_struct_blob(&blob, tmp_ctx, dgmsock->iconv_convenience, request, 42 (ndr_push_flags_fn_t)ndr_push_nbt_browse_packet); 43 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { 44 talloc_free(tmp_ctx); 45 return ndr_map_error2ntstatus(ndr_err); 46 } 47 48 status = dgram_mailslot_send(dgmsock, DGRAM_DIRECT_UNIQUE, 49 NBT_MAILSLOT_BROWSE, 50 dest_name, dest, 51 src_name, &blob); 52 talloc_free(tmp_ctx); 53 return status; 54} 55 56NTSTATUS dgram_mailslot_browse_reply(struct nbt_dgram_socket *dgmsock, 57 struct nbt_dgram_packet *request, 58 const char *mailslot_name, 59 const char *my_netbios_name, 60 struct nbt_browse_packet *reply) 61{ 62 NTSTATUS status; 63 enum ndr_err_code ndr_err; 64 DATA_BLOB blob; 65 TALLOC_CTX *tmp_ctx = talloc_new(dgmsock); 66 struct nbt_name myname; 67 struct socket_address *dest; 68 69 ndr_err = ndr_push_struct_blob(&blob, tmp_ctx, dgmsock->iconv_convenience, reply, 70 (ndr_push_flags_fn_t)ndr_push_nbt_browse_packet); 71 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { 72 talloc_free(tmp_ctx); 73 return ndr_map_error2ntstatus(ndr_err); 74 } 75 76 make_nbt_name_client(&myname, my_netbios_name); 77 78 dest = socket_address_from_strings(tmp_ctx, dgmsock->sock->backend_name, 79 request->src_addr, request->src_port); 80 if (!dest) { 81 talloc_free(tmp_ctx); 82 return NT_STATUS_NO_MEMORY; 83 } 84 85 status = dgram_mailslot_send(dgmsock, DGRAM_DIRECT_UNIQUE, 86 mailslot_name, 87 &request->data.msg.source_name, 88 dest, 89 &myname, &blob); 90 talloc_free(tmp_ctx); 91 return status; 92} 93 94NTSTATUS dgram_mailslot_browse_parse(struct dgram_mailslot_handler *dgmslot, 95 TALLOC_CTX *mem_ctx, 96 struct nbt_dgram_packet *dgram, 97 struct nbt_browse_packet *pkt) 98{ 99 DATA_BLOB data = dgram_mailslot_data(dgram); 100 enum ndr_err_code ndr_err; 101 102 ndr_err = ndr_pull_struct_blob(&data, mem_ctx, dgmslot->dgmsock->iconv_convenience, pkt, 103 (ndr_pull_flags_fn_t)ndr_pull_nbt_browse_packet); 104 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { 105 NTSTATUS status = ndr_map_error2ntstatus(ndr_err); 106 DEBUG(0,("Failed to parse browse packet of length %d: %s\n", 107 (int)data.length, nt_errstr(status))); 108 if (DEBUGLVL(10)) { 109 file_save("browse.dat", data.data, data.length); 110 } 111 return status; 112 } 113 return NT_STATUS_OK; 114} 115