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 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 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 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 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 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 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 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 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