b913e6a53a9a27c0a68914daab494578fb332328
[jelmer/samba4-debian.git] / source / lib / cmdline / popt_credentials.c
1 /* 
2    Unix SMB/CIFS implementation.
3    Credentials popt routines
4
5    Copyright (C) Jelmer Vernooij 2002,2003,2005
6
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11    
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16    
17    You should have received a copy of the GNU General Public License
18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "lib/cmdline/popt_common.h"
23 #include "lib/cmdline/credentials.h"
24 #include "auth/credentials/credentials.h"
25 #include "auth/gensec/gensec.h"
26 #include "param/param.h"
27
28 /* Handle command line options:
29  *              -U,--user
30  *              -A,--authentication-file
31  *              -k,--use-kerberos
32  *              -N,--no-pass
33  *              -S,--signing
34  *              -P --machine-pass
35  *                 --simple-bind-dn
36  *                 --password
37  */
38
39
40 static BOOL dont_ask;
41
42 enum opt { OPT_SIMPLE_BIND_DN, OPT_PASSWORD, OPT_KERBEROS };
43
44 /*
45   disable asking for a password
46 */
47 void popt_common_dont_ask(void)
48 {
49         dont_ask = True;
50 }
51
52 static void popt_common_credentials_callback(poptContext con, 
53                                                 enum poptCallbackReason reason,
54                                                 const struct poptOption *opt,
55                                                 const char *arg, const void *data)
56 {
57         if (reason == POPT_CALLBACK_REASON_PRE) {
58                 cmdline_credentials = cli_credentials_init(talloc_autofree_context());
59                 return;
60         }
61         
62         if (reason == POPT_CALLBACK_REASON_POST) {
63                 cli_credentials_guess(cmdline_credentials);
64
65                 if (!dont_ask) {
66                         cli_credentials_set_cmdline_callbacks(cmdline_credentials);
67                 }
68                 return;
69         }
70
71         switch(opt->val) {
72         case 'U':
73         {
74                 char *lp;
75                 
76                 cli_credentials_parse_string(cmdline_credentials, arg, CRED_SPECIFIED);
77                 /* This breaks the abstraction, including the const above */
78                 if ((lp=strchr_m(arg,'%'))) {
79                         lp[0]='\0';
80                         lp++;
81                         /* Try to prevent this showing up in ps */
82                         memset(lp,0,strlen(lp));
83                 }
84         }
85         break;
86
87         case OPT_PASSWORD:
88                 cli_credentials_set_password(cmdline_credentials, arg, CRED_SPECIFIED);
89                 /* Try to prevent this showing up in ps */
90                 memset(discard_const(arg),0,strlen(arg));
91                 break;
92
93         case 'A':
94                 cli_credentials_parse_file(cmdline_credentials, arg, CRED_SPECIFIED);
95                 break;
96
97         case 'S':
98                 lp_set_cmdline(global_loadparm, "client signing", arg);
99                 break;
100
101         case 'P':
102                 /* Later, after this is all over, get the machine account details from the secrets.ldb */
103                 cli_credentials_set_machine_account_pending(cmdline_credentials);
104                 break;
105
106         case OPT_KERBEROS:
107         {
108                 BOOL use_kerberos = True;
109                 /* Force us to only use kerberos */
110                 if (arg) {
111                         if (!set_boolean(arg, &use_kerberos)) {
112                                 fprintf(stderr, "Error parsing -k %s\n", arg);
113                                 exit(1);
114                                 break;
115                         }
116                 }
117                 
118                 cli_credentials_set_kerberos_state(cmdline_credentials, 
119                                                    use_kerberos 
120                                                    ? CRED_MUST_USE_KERBEROS
121                                                    : CRED_DONT_USE_KERBEROS);
122                 break;
123         }
124                 
125         case OPT_SIMPLE_BIND_DN:
126                 cli_credentials_set_bind_dn(cmdline_credentials, arg);
127                 break;
128         }
129 }
130
131
132
133 struct poptOption popt_common_credentials[] = {
134         { NULL, 0, POPT_ARG_CALLBACK|POPT_CBFLAG_PRE|POPT_CBFLAG_POST, (void *)popt_common_credentials_callback },
135         { "user", 'U', POPT_ARG_STRING, NULL, 'U', "Set the network username", "[DOMAIN/]USERNAME[%PASSWORD]" },
136         { "no-pass", 'N', POPT_ARG_NONE, &dont_ask, 'N', "Don't ask for a password" },
137         { "password", 0, POPT_ARG_STRING, NULL, OPT_PASSWORD, "Password" },
138         { "authentication-file", 'A', POPT_ARG_STRING, NULL, 'A', "Get the credentials from a file", "FILE" },
139         { "signing", 'S', POPT_ARG_STRING, NULL, 'S', "Set the client signing state", "on|off|required" },
140         { "machine-pass", 'P', POPT_ARG_NONE, NULL, 'P', "Use stored machine account password (implies -k)" },
141         { "simple-bind-dn", 0, POPT_ARG_STRING, NULL, OPT_SIMPLE_BIND_DN, "DN to use for a simple bind" },
142         { "kerberos", 'k', POPT_ARG_STRING, NULL, OPT_KERBEROS, "Use Kerberos" },
143         { NULL }
144 };