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1 | /* $Id$ | |
2 | * | |
3 | * Handles the client side of the sending of authenticators to the moira server | |
4 | * | |
5 | * Copyright (C) 1987-1998 by the Massachusetts Institute of Technology | |
6 | * For copying and distribution information, please see the file | |
7 | * <mit-copyright.h>. | |
8 | */ | |
9 | ||
10 | #include <mit-copyright.h> | |
11 | #include <moira.h> | |
12 | #include "mr_private.h" | |
13 | ||
14 | #include <ctype.h> | |
15 | #include <stdio.h> | |
16 | #include <string.h> | |
17 | ||
18 | #ifdef HAVE_KRB4 | |
19 | #include <krb.h> | |
20 | #endif | |
21 | #include <krb5.h> | |
22 | ||
23 | krb5_context context = NULL; | |
24 | krb5_auth_context auth_con = NULL; | |
25 | ||
26 | RCSID("$Header$"); | |
27 | ||
28 | /* Authenticate this client with the Moira server. prog is the name of the | |
29 | * client program, and will be recorded in the database. | |
30 | */ | |
31 | ||
32 | int mr_auth(char *prog) | |
33 | { | |
34 | #ifdef HAVE_KRB4 | |
35 | int status; | |
36 | mr_params params, reply; | |
37 | char *args[2]; | |
38 | int argl[2]; | |
39 | char realm[REALM_SZ], host[BUFSIZ], *p; | |
40 | KTEXT_ST auth; | |
41 | ||
42 | CHECK_CONNECTED; | |
43 | ||
44 | if ((status = mr_host(host, sizeof(host) - 1))) | |
45 | return status; | |
46 | ||
47 | strcpy(realm, krb_realmofhost(host)); | |
48 | for (p = host; *p && *p != '.'; p++) | |
49 | { | |
50 | if (isupper(*p)) | |
51 | *p = tolower(*p); | |
52 | } | |
53 | *p = '\0'; | |
54 | ||
55 | status = krb_mk_req(&auth, MOIRA_SNAME, host, realm, 0); | |
56 | if (status != KSUCCESS) | |
57 | { | |
58 | status += ERROR_TABLE_BASE_krb; | |
59 | return status; | |
60 | } | |
61 | params.u.mr_procno = MR_AUTH; | |
62 | params.mr_argc = 2; | |
63 | params.mr_argv = args; | |
64 | params.mr_argl = argl; | |
65 | params.mr_argv[0] = (char *)auth.dat; | |
66 | params.mr_argl[0] = auth.length; | |
67 | params.mr_argv[1] = prog; | |
68 | params.mr_argl[1] = strlen(prog) + 1; | |
69 | ||
70 | if ((status = mr_do_call(¶ms, &reply)) == MR_SUCCESS) | |
71 | status = reply.u.mr_status; | |
72 | ||
73 | mr_destroy_reply(reply); | |
74 | ||
75 | return status; | |
76 | #else | |
77 | return MR_NO_KRB4; | |
78 | #endif | |
79 | } | |
80 | ||
81 | int mr_proxy(char *principal, char *orig_authtype) | |
82 | { | |
83 | int status; | |
84 | mr_params params, reply; | |
85 | char *args[2]; | |
86 | ||
87 | CHECK_CONNECTED; | |
88 | ||
89 | params.u.mr_procno = MR_PROXY; | |
90 | params.mr_argc = 2; | |
91 | params.mr_argv = args; | |
92 | params.mr_argv[0] = principal; | |
93 | params.mr_argv[1] = orig_authtype; | |
94 | params.mr_argl = NULL; | |
95 | ||
96 | if ((status = mr_do_call(¶ms, &reply)) == MR_SUCCESS) | |
97 | status = reply.u.mr_status; | |
98 | ||
99 | mr_destroy_reply(reply); | |
100 | ||
101 | return status; | |
102 | } | |
103 | ||
104 | int mr_krb5_auth(char *prog) | |
105 | { | |
106 | mr_params params, reply; | |
107 | char host[BUFSIZ], *p; | |
108 | char *args[2]; | |
109 | int argl[2]; | |
110 | krb5_ccache ccache = NULL; | |
111 | krb5_data auth; | |
112 | krb5_error_code problem = 0; | |
113 | ||
114 | CHECK_CONNECTED; | |
115 | ||
116 | memset(&auth, 0, sizeof(auth)); | |
117 | ||
118 | if ((problem = mr_host(host, sizeof(host) - 1))) | |
119 | return problem; | |
120 | ||
121 | if (!context) | |
122 | { | |
123 | problem = krb5_init_context(&context); | |
124 | if (problem) | |
125 | goto out; | |
126 | } | |
127 | ||
128 | problem = krb5_auth_con_init(context, &auth_con); | |
129 | if (problem) | |
130 | goto out; | |
131 | ||
132 | problem = krb5_cc_default(context, &ccache); | |
133 | if (problem) | |
134 | goto out; | |
135 | ||
136 | problem = krb5_mk_req(context, &auth_con, 0, MOIRA_SNAME, host, NULL, | |
137 | ccache, &auth); | |
138 | if (problem) | |
139 | goto out; | |
140 | ||
141 | params.u.mr_procno = MR_KRB5_AUTH; | |
142 | params.mr_argc = 2; | |
143 | params.mr_argv = args; | |
144 | params.mr_argl = argl; | |
145 | params.mr_argv[0] = (char *)auth.data; | |
146 | params.mr_argl[0] = auth.length; | |
147 | params.mr_argv[1] = prog; | |
148 | params.mr_argl[1] = strlen(prog) + 1; | |
149 | ||
150 | if ((problem = mr_do_call(¶ms, &reply)) == MR_SUCCESS) | |
151 | problem = reply.u.mr_status; | |
152 | ||
153 | mr_destroy_reply(reply); | |
154 | ||
155 | out: | |
156 | if (ccache) | |
157 | krb5_cc_close(context, ccache); | |
158 | krb5_free_data_contents(context, &auth); | |
159 | if (auth_con) | |
160 | krb5_auth_con_free(context, auth_con); | |
161 | auth_con = NULL; | |
162 | ||
163 | return problem; | |
164 | } | |
165 |