3a624bf7e8d453970cb2ea81d48b68670af5e5ae
[nivanova/samba-autobuild/.git] / 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
22 #include "lib/netapi/netapi.h"
23 #include "lib/netapi/netapi_private.h"
24
25 /********************************************************************
26 ********************************************************************/
27
28 static WERROR libnetapi_open_ipc_connection(struct libnetapi_ctx *ctx,
29                                             const char *server_name,
30                                             struct cli_state **cli)
31 {
32         struct user_auth_info *auth_info = NULL;
33         struct cli_state *cli_ipc = NULL;
34
35         if (!ctx || !cli || !server_name) {
36                 return WERR_INVALID_PARAM;
37         }
38
39         auth_info = user_auth_info_init(NULL);
40         if (!auth_info) {
41                 return WERR_NOMEM;
42         }
43         auth_info->signing_state = Undefined;
44         set_cmdline_auth_info_use_kerberos(auth_info, ctx->use_kerberos);
45         set_cmdline_auth_info_username(auth_info, ctx->username);
46         if (ctx->password) {
47                 set_cmdline_auth_info_password(auth_info, ctx->password);
48         } else {
49                 set_cmdline_auth_info_getpass(auth_info);
50         }
51
52         if (ctx->username && ctx->username[0] &&
53             ctx->password && ctx->password[0] &&
54             ctx->use_kerberos) {
55                 set_cmdline_auth_info_fallback_after_kerberos(auth_info, true);
56         }
57
58         if (ctx->use_ccache) {
59                 set_cmdline_auth_info_use_ccache(auth_info, true);
60         }
61
62         cli_ipc = cli_cm_open(ctx, NULL,
63                                 server_name, "IPC$",
64                                 auth_info,
65                                 false, false,
66                                 PROTOCOL_NT1,
67                                 0, 0x20);
68         if (cli_ipc) {
69                 cli_set_username(cli_ipc, ctx->username);
70                 cli_set_password(cli_ipc, ctx->password);
71                 cli_set_domain(cli_ipc, ctx->workgroup);
72         }
73         TALLOC_FREE(auth_info);
74
75         if (!cli_ipc) {
76                 libnetapi_set_error_string(ctx,
77                         "Failed to connect to IPC$ share on %s", server_name);
78                 return WERR_CAN_NOT_COMPLETE;
79         }
80
81         *cli = cli_ipc;
82
83         return WERR_OK;
84 }
85
86 /********************************************************************
87 ********************************************************************/
88
89 struct client_pipe_connection {
90         struct client_pipe_connection *prev, *next;
91         struct rpc_pipe_client *pipe;
92         struct cli_state *cli;
93 };
94
95 static struct client_pipe_connection *pipe_connections;
96
97 /********************************************************************
98 ********************************************************************/
99
100 WERROR libnetapi_shutdown_cm(struct libnetapi_ctx *ctx)
101 {
102         struct client_pipe_connection *p;
103
104         for (p = pipe_connections; p; p = p->next) {
105                 cli_shutdown(p->cli);
106         }
107
108         return WERR_OK;
109 }
110
111 /********************************************************************
112 ********************************************************************/
113
114 static NTSTATUS pipe_cm_find(struct cli_state *cli,
115                              const struct ndr_syntax_id *interface,
116                              struct rpc_pipe_client **presult)
117 {
118         struct client_pipe_connection *p;
119
120         for (p = pipe_connections; p; p = p->next) {
121
122                 if (!rpc_pipe_np_smb_conn(p->pipe)) {
123                         return NT_STATUS_PIPE_EMPTY;
124                 }
125
126                 if (strequal(cli->desthost, p->pipe->desthost)
127                     && ndr_syntax_id_equal(&p->pipe->abstract_syntax,
128                                            interface)) {
129                         *presult = p->pipe;
130                         return NT_STATUS_OK;
131                 }
132         }
133
134         return NT_STATUS_PIPE_NOT_AVAILABLE;
135 }
136
137 /********************************************************************
138 ********************************************************************/
139
140 static NTSTATUS pipe_cm_connect(TALLOC_CTX *mem_ctx,
141                                 struct cli_state *cli,
142                                 const struct ndr_syntax_id *interface,
143                                 struct rpc_pipe_client **presult)
144 {
145         struct client_pipe_connection *p;
146         NTSTATUS status;
147
148         p = TALLOC_ZERO_ARRAY(mem_ctx, struct client_pipe_connection, 1);
149         if (!p) {
150                 return NT_STATUS_NO_MEMORY;
151         }
152
153         status = cli_rpc_pipe_open_noauth(cli, interface, &p->pipe);
154         if (!NT_STATUS_IS_OK(status)) {
155                 TALLOC_FREE(p);
156                 return status;
157         }
158
159         p->cli = cli;
160         DLIST_ADD(pipe_connections, p);
161
162         *presult = p->pipe;
163         return NT_STATUS_OK;
164 }
165
166 /********************************************************************
167 ********************************************************************/
168
169 static NTSTATUS pipe_cm_open(TALLOC_CTX *ctx,
170                              struct cli_state *cli,
171                              const struct ndr_syntax_id *interface,
172                              struct rpc_pipe_client **presult)
173 {
174         if (NT_STATUS_IS_OK(pipe_cm_find(cli, interface, presult))) {
175                 return NT_STATUS_OK;
176         }
177
178         return pipe_cm_connect(ctx, cli, interface, presult);
179 }
180
181 /********************************************************************
182 ********************************************************************/
183
184 WERROR libnetapi_open_pipe(struct libnetapi_ctx *ctx,
185                            const char *server_name,
186                            const struct ndr_syntax_id *interface,
187                            struct rpc_pipe_client **presult)
188 {
189         struct rpc_pipe_client *result = NULL;
190         NTSTATUS status;
191         WERROR werr;
192         struct cli_state *cli = NULL;
193
194         if (!presult) {
195                 return WERR_INVALID_PARAM;
196         }
197
198         werr = libnetapi_open_ipc_connection(ctx, server_name, &cli);
199         if (!W_ERROR_IS_OK(werr)) {
200                 return werr;
201         }
202
203         status = pipe_cm_open(ctx, cli, interface, &result);
204         if (!NT_STATUS_IS_OK(status)) {
205                 libnetapi_set_error_string(ctx, "failed to open PIPE %s: %s",
206                         get_pipe_name_from_syntax(talloc_tos(), interface),
207                         get_friendly_nt_error_msg(status));
208                 return WERR_DEST_NOT_FOUND;
209         }
210
211         *presult = result;
212
213         return WERR_OK;
214 }