1 /* 2 * Copyright (c) 1997 - 2000 Kungliga Tekniska H�gskolan 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.h> 36 #include "gss_common.h" 37 RCSID("$Id: gss_common.c 19937 2007-01-16 21:56:01Z lha $"); 38 39 void 40 write_token (int sock, gss_buffer_t buf) 41 { 42 uint32_t len, net_len; 43 OM_uint32 min_stat; 44 45 len = buf->length; 46 47 net_len = htonl(len); 48 49 if (net_write (sock, &net_len, 4) != 4) 50 err (1, "write"); 51 if (net_write (sock, buf->value, len) != len) 52 err (1, "write"); 53 54 gss_release_buffer (&min_stat, buf); 55 } 56 57 static void 58 enet_read(int fd, void *buf, size_t len) 59 { 60 ssize_t ret; 61 62 ret = net_read (fd, buf, len); 63 if (ret == 0) 64 errx (1, "EOF in read"); 65 else if (ret < 0) 66 errx (1, "read"); 67 } 68 69 void 70 read_token (int sock, gss_buffer_t buf) 71 { 72 uint32_t len, net_len; 73 74 enet_read (sock, &net_len, 4); 75 len = ntohl(net_len); 76 buf->length = len; 77 buf->value = emalloc(len); 78 enet_read (sock, buf->value, len); 79 } 80 81 void 82 gss_print_errors (int min_stat) 83 { 84 OM_uint32 new_stat; 85 OM_uint32 msg_ctx = 0; 86 gss_buffer_desc status_string; 87 OM_uint32 ret; 88 89 do { 90 ret = gss_display_status (&new_stat, 91 min_stat, 92 GSS_C_MECH_CODE, 93 GSS_C_NO_OID, 94 &msg_ctx, 95 &status_string); 96 fprintf (stderr, "%.*s\n", (int)status_string.length, 97 (char *)status_string.value); 98 gss_release_buffer (&new_stat, &status_string); 99 } while (!GSS_ERROR(ret) && msg_ctx != 0); 100 } 101 102 void 103 gss_verr(int exitval, int status, const char *fmt, va_list ap) 104 { 105 vwarnx (fmt, ap); 106 gss_print_errors (status); 107 exit (exitval); 108 } 109 110 void 111 gss_err(int exitval, int status, const char *fmt, ...) 112 { 113 va_list args; 114 115 va_start(args, fmt); 116 gss_verr (exitval, status, fmt, args); 117 va_end(args); 118 } 119 120 gss_OID 121 select_mech(const char *mech) 122 { 123 if (strcasecmp(mech, "krb5") == 0) 124 return GSS_KRB5_MECHANISM; 125 else if (strcasecmp(mech, "spnego") == 0) 126 return GSS_SPNEGO_MECHANISM; 127 else if (strcasecmp(mech, "no-oid") == 0) 128 return GSS_C_NO_OID; 129 else 130 errx (1, "Unknown mechanism '%s' (spnego, krb5, no-oid)", mech); 131 } 132 133 void 134 print_gss_name(const char *prefix, gss_name_t name) 135 { 136 OM_uint32 maj_stat, min_stat; 137 gss_buffer_desc name_token; 138 139 maj_stat = gss_display_name (&min_stat, 140 name, 141 &name_token, 142 NULL); 143 if (GSS_ERROR(maj_stat)) 144 gss_err (1, min_stat, "gss_display_name"); 145 146 fprintf (stderr, "%s `%.*s'\n", prefix, 147 (int)name_token.length, 148 (char *)name_token.value); 149 150 gss_release_buffer (&min_stat, &name_token); 151 152 } 153