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