]>
Commit | Line | Data |
---|---|---|
1 | /* $Id$ | |
2 | * | |
3 | * This code handles the actual distribution of data files | |
4 | * to servers in the Moira server-update program. | |
5 | * | |
6 | * Copyright (C) 1987-1998 by the Massachusetts Institute of Technology. | |
7 | * For copying and distribution information, please see the file | |
8 | * <mit-copyright.h>. | |
9 | */ | |
10 | ||
11 | #include <mit-copyright.h> | |
12 | #include <moira.h> | |
13 | #include "update.h" | |
14 | ||
15 | #include <errno.h> | |
16 | #include <stdio.h> | |
17 | #include <stdlib.h> | |
18 | #include <string.h> | |
19 | ||
20 | #ifdef HAVE_KRB4 | |
21 | #include <des.h> | |
22 | #include <krb.h> | |
23 | #endif | |
24 | #include <krb5.h> | |
25 | ||
26 | RCSID("$Header$"); | |
27 | ||
28 | #ifdef HAVE_KRB4 | |
29 | extern des_cblock session; | |
30 | #endif | |
31 | extern char *whoami; | |
32 | extern krb5_context context; | |
33 | ||
34 | int mr_send_krb5_auth(int conn, char *host_name) | |
35 | { | |
36 | krb5_data auth; | |
37 | int code; | |
38 | long response; | |
39 | ||
40 | memset(&auth, 0, sizeof(auth)); | |
41 | ||
42 | code = get_mr_krb5_update_ticket(host_name, &auth); | |
43 | if (code) | |
44 | goto out; | |
45 | code = send_string(conn, "AUTH_003", 9); | |
46 | if (code) | |
47 | goto out; | |
48 | code = recv_int(conn, &response); | |
49 | if (code) | |
50 | goto out; | |
51 | if (response) | |
52 | { | |
53 | /* Talking to a server that doesn't do AUTH_003 */ | |
54 | krb5_free_data_contents(context, &auth); | |
55 | return response; | |
56 | } | |
57 | code = send_string(conn, (char *)auth.data, auth.length); | |
58 | if (code) | |
59 | goto out; | |
60 | code = recv_int(conn, &response); | |
61 | if (code) | |
62 | goto out; | |
63 | if (response) | |
64 | { | |
65 | krb5_free_data_contents(context, &auth); | |
66 | return response; | |
67 | } | |
68 | ||
69 | return MR_SUCCESS; | |
70 | ||
71 | out: | |
72 | krb5_free_data_contents(context, &auth); | |
73 | return code; | |
74 | } | |
75 | ||
76 | int mr_send_auth(int conn, char *host_name) | |
77 | { | |
78 | #ifdef HAVE_KRB4 | |
79 | KTEXT_ST ticket_st; | |
80 | int code, auth_version = 2; | |
81 | long response; | |
82 | ||
83 | code = get_mr_update_ticket(host_name, &ticket_st); | |
84 | if (code) | |
85 | return code; | |
86 | code = send_string(conn, "AUTH_002", 9); | |
87 | if (code) | |
88 | return code; | |
89 | code = recv_int(conn, &response); | |
90 | if (code) | |
91 | return code; | |
92 | if (response) | |
93 | { | |
94 | code = send_string(conn, "AUTH_001", 9); | |
95 | if (code) | |
96 | return code; | |
97 | code = recv_int(conn, &response); | |
98 | if (code) | |
99 | return code; | |
100 | if (response) | |
101 | return response; | |
102 | auth_version = 1; | |
103 | } | |
104 | code = send_string(conn, (char *)ticket_st.dat, ticket_st.length); | |
105 | if (code) | |
106 | return code; | |
107 | code = recv_int(conn, &response); | |
108 | if (code) | |
109 | return code; | |
110 | if (response) | |
111 | return response; | |
112 | ||
113 | if (auth_version == 2) | |
114 | { | |
115 | des_key_schedule sched; | |
116 | C_Block enonce; | |
117 | char *data; | |
118 | size_t size; | |
119 | ||
120 | code = recv_string(conn, &data, &size); | |
121 | if (code) | |
122 | return code; | |
123 | des_key_sched(session, sched); | |
124 | des_ecb_encrypt(data, enonce, sched, 1); | |
125 | free(data); | |
126 | code = send_string(conn, (char *)enonce, sizeof(enonce)); | |
127 | if (code) | |
128 | return code; | |
129 | code = recv_int(conn, &response); | |
130 | if (code) | |
131 | return code; | |
132 | if (response) | |
133 | return response; | |
134 | } | |
135 | ||
136 | return MR_SUCCESS; | |
137 | #else | |
138 | return MR_NO_KRB4; | |
139 | #endif | |
140 | } | |
141 | ||
142 | int mr_execute(int conn, char *path) | |
143 | { | |
144 | long response; | |
145 | char *data; | |
146 | int code; | |
147 | ||
148 | data = malloc(10 + strlen(path)); | |
149 | if (!data) | |
150 | return ENOMEM; | |
151 | sprintf(data, "EXEC_002 %s", path); | |
152 | code = send_string(conn, data, strlen(data) + 1); | |
153 | free(data); | |
154 | if (code) | |
155 | return code; | |
156 | code = recv_int(conn, &response); | |
157 | if (code) | |
158 | return code; | |
159 | if (response) | |
160 | return response; | |
161 | ||
162 | return MR_SUCCESS; | |
163 | } | |
164 | ||
165 | void mr_send_quit(int conn) | |
166 | { | |
167 | send_string(conn, "quit", 5); | |
168 | } | |
169 | ||
170 | void fail(int conn, int err, char *msg) | |
171 | { | |
172 | com_err(whoami, err, msg); | |
173 | return; | |
174 | } |