appl/test/gss_common.c

   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 }