source3/lib/netapi/cm.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  NetApi Support
   4  *  Copyright (C) Guenther Deschner 2008
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "includes.h"
  21 #include "popt_common.h"
  22
  23 #include "lib/netapi/netapi.h"
  24 #include "lib/netapi/netapi_private.h"
  25
  26 /********************************************************************
  27 ********************************************************************/
  28
  29 static WERROR libnetapi_open_ipc_connection(struct libnetapi_ctx *ctx,
  30                                             const char *server_name,
  31                                             struct cli_state **cli)
  32 {
  33         struct user_auth_info *auth_info = NULL;
  34         struct cli_state *cli_ipc = NULL;
  35
  36         if (!ctx || !cli || !server_name) {
  37                 return WERR_INVALID_PARAM;
  38         }
  39
  40         auth_info = user_auth_info_init(NULL);
  41         if (!auth_info) {
  42                 return WERR_NOMEM;
  43         }
  44         auth_info->signing_state = Undefined;
  45         set_cmdline_auth_info_use_kerberos(auth_info, ctx->use_kerberos);
  46         set_cmdline_auth_info_username(auth_info, ctx->username);
  47         if (ctx->password) {
  48                 set_cmdline_auth_info_password(auth_info, ctx->password);
  49         } else {
  50                 set_cmdline_auth_info_getpass(auth_info);
  51         }
  52
  53         if (ctx->username && ctx->username[0] &&
  54             ctx->password && ctx->password[0] &&
  55             ctx->use_kerberos) {
  56                 set_cmdline_auth_info_fallback_after_kerberos(auth_info, true);
  57         }
  58
  59         if (ctx->use_ccache) {
  60                 set_cmdline_auth_info_use_ccache(auth_info, true);
  61         }
  62
  63         cli_ipc = cli_cm_open(ctx, NULL,
  64                                 server_name, "IPC$",
  65                                 auth_info,
  66                                 false, false,
  67                                 PROTOCOL_NT1,
  68                                 0, 0x20);
  69         if (cli_ipc) {
  70                 cli_set_username(cli_ipc, ctx->username);
  71                 cli_set_password(cli_ipc, ctx->password);
  72                 cli_set_domain(cli_ipc, ctx->workgroup);
  73         }
  74         TALLOC_FREE(auth_info);
  75
  76         if (!cli_ipc) {
  77                 libnetapi_set_error_string(ctx,
  78                         "Failed to connect to IPC$ share on %s", server_name);
  79                 return WERR_CAN_NOT_COMPLETE;
  80         }
  81
  82         *cli = cli_ipc;
  83
  84         return WERR_OK;
  85 }
  86
  87 /********************************************************************
  88 ********************************************************************/
  89
  90 struct client_pipe_connection {
  91         struct client_pipe_connection *prev, *next;
  92         struct rpc_pipe_client *pipe;
  93         struct cli_state *cli;
  94 };
  95
  96 static struct client_pipe_connection *pipe_connections;
  97
  98 /********************************************************************
  99 ********************************************************************/
 100
 101 WERROR libnetapi_shutdown_cm(struct libnetapi_ctx *ctx)
 102 {
 103         struct client_pipe_connection *p;
 104
 105         for (p = pipe_connections; p; p = p->next) {
 106                 cli_shutdown(p->cli);
 107         }
 108
 109         return WERR_OK;
 110 }
 111
 112 /********************************************************************
 113 ********************************************************************/
 114
 115 static NTSTATUS pipe_cm_find(struct cli_state *cli,
 116                              const struct ndr_syntax_id *interface,
 117                              struct rpc_pipe_client **presult)
 118 {
 119         struct client_pipe_connection *p;
 120
 121         for (p = pipe_connections; p; p = p->next) {
 122
 123                 if (!rpc_pipe_np_smb_conn(p->pipe)) {
 124                         return NT_STATUS_PIPE_EMPTY;
 125                 }
 126
 127                 if (strequal(cli->desthost, p->pipe->desthost)
 128                     && ndr_syntax_id_equal(&p->pipe->abstract_syntax,
 129                                            interface)) {
 130                         *presult = p->pipe;
 131                         return NT_STATUS_OK;
 132                 }
 133         }
 134
 135         return NT_STATUS_PIPE_NOT_AVAILABLE;
 136 }
 137
 138 /********************************************************************
 139 ********************************************************************/
 140
 141 static NTSTATUS pipe_cm_connect(TALLOC_CTX *mem_ctx,
 142                                 struct cli_state *cli,
 143                                 const struct ndr_syntax_id *interface,
 144                                 struct rpc_pipe_client **presult)
 145 {
 146         struct client_pipe_connection *p;
 147         NTSTATUS status;
 148
 149         p = TALLOC_ZERO_ARRAY(mem_ctx, struct client_pipe_connection, 1);
 150         if (!p) {
 151                 return NT_STATUS_NO_MEMORY;
 152         }
 153
 154         status = cli_rpc_pipe_open_noauth(cli, interface, &p->pipe);
 155         if (!NT_STATUS_IS_OK(status)) {
 156                 TALLOC_FREE(p);
 157                 return status;
 158         }
 159
 160         p->cli = cli;
 161         DLIST_ADD(pipe_connections, p);
 162
 163         *presult = p->pipe;
 164         return NT_STATUS_OK;
 165 }
 166
 167 /********************************************************************
 168 ********************************************************************/
 169
 170 static NTSTATUS pipe_cm_open(TALLOC_CTX *ctx,
 171                              struct cli_state *cli,
 172                              const struct ndr_syntax_id *interface,
 173                              struct rpc_pipe_client **presult)
 174 {
 175         if (NT_STATUS_IS_OK(pipe_cm_find(cli, interface, presult))) {
 176                 return NT_STATUS_OK;
 177         }
 178
 179         return pipe_cm_connect(ctx, cli, interface, presult);
 180 }
 181
 182 /********************************************************************
 183 ********************************************************************/
 184
 185 WERROR libnetapi_open_pipe(struct libnetapi_ctx *ctx,
 186                            const char *server_name,
 187                            const struct ndr_syntax_id *interface,
 188                            struct rpc_pipe_client **presult)
 189 {
 190         struct rpc_pipe_client *result = NULL;
 191         NTSTATUS status;
 192         WERROR werr;
 193         struct cli_state *cli = NULL;
 194
 195         if (!presult) {
 196                 return WERR_INVALID_PARAM;
 197         }
 198
 199         werr = libnetapi_open_ipc_connection(ctx, server_name, &cli);
 200         if (!W_ERROR_IS_OK(werr)) {
 201                 return werr;
 202         }
 203
 204         status = pipe_cm_open(ctx, cli, interface, &result);
 205         if (!NT_STATUS_IS_OK(status)) {
 206                 libnetapi_set_error_string(ctx, "failed to open PIPE %s: %s",
 207                         get_pipe_name_from_syntax(talloc_tos(), interface),
 208                         get_friendly_nt_error_msg(status));
 209                 return WERR_DEST_NOT_FOUND;
 210         }
 211
 212         *presult = result;
 213
 214         return WERR_OK;
 215 }