1 /*
2 * Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #include "test_locl.h"
35 #include <gssapi/gssapi.h>
36 #include <gssapi/gssapi_krb5.h>
37 #include <gssapi/gssapi_spnego.h>
38 #include "gss_common.h"
39 RCSID("$Id$");
40
41 void
write_token(int sock,gss_buffer_t buf)42 write_token (int sock, gss_buffer_t buf)
43 {
44 uint32_t len, net_len;
45 OM_uint32 min_stat;
46
47 len = buf->length;
48
49 net_len = htonl(len);
50
51 if (net_write (sock, &net_len, 4) != 4)
52 err (1, "write");
53 if (net_write (sock, buf->value, len) != len)
54 err (1, "write");
55
56 gss_release_buffer (&min_stat, buf);
57 }
58
59 static void
enet_read(int fd,void * buf,size_t len)60 enet_read(int fd, void *buf, size_t len)
61 {
62 ssize_t ret;
63
64 ret = net_read (fd, buf, len);
65 if (ret == 0)
66 errx (1, "EOF in read");
67 else if (ret < 0)
68 errx (1, "read");
69 }
70
71 void
read_token(int sock,gss_buffer_t buf)72 read_token (int sock, gss_buffer_t buf)
73 {
74 uint32_t len, net_len;
75
76 enet_read (sock, &net_len, 4);
77 len = ntohl(net_len);
78 buf->length = len;
79 buf->value = emalloc(len);
80 enet_read (sock, buf->value, len);
81 }
82
83 void
gss_print_errors(int min_stat)84 gss_print_errors (int min_stat)
85 {
86 OM_uint32 new_stat;
87 OM_uint32 msg_ctx = 0;
88 gss_buffer_desc status_string;
89 OM_uint32 ret;
90
91 do {
92 ret = gss_display_status (&new_stat,
93 min_stat,
94 GSS_C_MECH_CODE,
95 GSS_C_NO_OID,
96 &msg_ctx,
97 &status_string);
98 fprintf (stderr, "%.*s\n", (int)status_string.length,
99 (char *)status_string.value);
100 gss_release_buffer (&new_stat, &status_string);
101 } while (!GSS_ERROR(ret) && msg_ctx != 0);
102 }
103
104 void
gss_verr(int exitval,int status,const char * fmt,va_list ap)105 gss_verr(int exitval, int status, const char *fmt, va_list ap)
106 {
107 vwarnx (fmt, ap);
108 gss_print_errors (status);
109 exit (exitval);
110 }
111
112 void
gss_err(int exitval,int status,const char * fmt,...)113 gss_err(int exitval, int status, const char *fmt, ...)
114 {
115 va_list args;
116
117 va_start(args, fmt);
118 gss_verr (exitval, status, fmt, args);
119 va_end(args);
120 }
121
122 gss_OID
select_mech(const char * mech)123 select_mech(const char *mech)
124 {
125 if (strcasecmp(mech, "krb5") == 0)
126 return GSS_KRB5_MECHANISM;
127 else if (strcasecmp(mech, "spnego") == 0)
128 return GSS_SPNEGO_MECHANISM;
129 else if (strcasecmp(mech, "no-oid") == 0)
130 return GSS_C_NO_OID;
131 else
132 errx (1, "Unknown mechanism '%s' (spnego, krb5, no-oid)", mech);
133 }
134
135 void
print_gss_name(const char * prefix,gss_name_t name)136 print_gss_name(const char *prefix, gss_name_t name)
137 {
138 OM_uint32 maj_stat, min_stat;
139 gss_buffer_desc name_token;
140
141 maj_stat = gss_display_name (&min_stat,
142 name,
143 &name_token,
144 NULL);
145 if (GSS_ERROR(maj_stat))
146 gss_err (1, min_stat, "gss_display_name");
147
148 fprintf (stderr, "%s `%.*s'\n", prefix,
149 (int)name_token.length,
150 (char *)name_token.value);
151
152 gss_release_buffer (&min_stat, &name_token);
153
154 }
155