uu_client.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 RCSID("$Id$"); 36 37 krb5_context context; 38 39 static int 40 proto (int sock, const char *hostname, const char *service) 41 { 42 struct sockaddr_in remote, local; 43 socklen_t addrlen; 44 krb5_address remote_addr, local_addr; 45 krb5_context context; 46 krb5_ccache ccache; 47 krb5_auth_context auth_context; 48 krb5_error_code status; 49 krb5_principal client; 50 krb5_data data; 51 krb5_data packet; 52 krb5_creds mcred, cred; 53 krb5_ticket *ticket; 54 55 addrlen = sizeof(local); 56 if (getsockname (sock, (struct sockaddr *)&local, &addrlen) < 0 57 || addrlen != sizeof(local)) 58 err (1, "getsockname(%s)", hostname); 59 60 addrlen = sizeof(remote); 61 if (getpeername (sock, (struct sockaddr *)&remote, &addrlen) < 0 62 || addrlen != sizeof(remote)) 63 err (1, "getpeername(%s)", hostname); 64 65 status = krb5_init_context(&context); 66 if (status) 67 errx(1, "krb5_init_context failed: %d", status); 68 69 status = krb5_cc_default (context, &ccache); 70 if (status) 71 krb5_err(context, 1, status, "krb5_cc_default"); 72 73 status = krb5_auth_con_init (context, &auth_context); 74 if (status) 75 krb5_err(context, 1, status, "krb5_auth_con_init"); 76 77 local_addr.addr_type = AF_INET; 78 local_addr.address.length = sizeof(local.sin_addr); 79 local_addr.address.data = &local.sin_addr; 80 81 remote_addr.addr_type = AF_INET; 82 remote_addr.address.length = sizeof(remote.sin_addr); 83 remote_addr.address.data = &remote.sin_addr; 84 85 status = krb5_auth_con_setaddrs (context, 86 auth_context, 87 &local_addr, 88 &remote_addr); 89 if (status) 90 krb5_err(context, 1, status, "krb5_auth_con_setaddr"); 91 92 krb5_cc_clear_mcred(&mcred); 93 94 status = krb5_cc_get_principal(context, ccache, &client); 95 if(status) 96 krb5_err(context, 1, status, "krb5_cc_get_principal"); 97 status = krb5_make_principal(context, &mcred.server, 98 krb5_principal_get_realm(context, client), 99 "krbtgt", 100 krb5_principal_get_realm(context, client), 101 NULL); 102 if(status) 103 krb5_err(context, 1, status, "krb5_make_principal"); 104 mcred.client = client; 105 106 status = krb5_cc_retrieve_cred(context, ccache, 0, &mcred, &cred); 107 if(status) 108 krb5_err(context, 1, status, "krb5_cc_retrieve_cred"); 109 110 { 111 char *client_name; 112 krb5_data data; 113 status = krb5_unparse_name(context, cred.client, &client_name); 114 if(status) 115 krb5_err(context, 1, status, "krb5_unparse_name"); 116 data.data = client_name; 117 data.length = strlen(client_name) + 1; 118 status = krb5_write_message(context, &sock, &data); 119 if(status) 120 krb5_err(context, 1, status, "krb5_write_message"); 121 free(client_name); 122 } 123 124 status = krb5_write_message(context, &sock, &cred.ticket); 125 if(status) 126 krb5_err(context, 1, status, "krb5_write_message"); 127 128 status = krb5_auth_con_setuserkey(context, auth_context, &cred.session); 129 if(status) 130 krb5_err(context, 1, status, "krb5_auth_con_setuserkey"); 131 132 status = krb5_recvauth(context, &auth_context, &sock, 133 VERSION, client, 0, NULL, &ticket); 134 135 if (status) 136 krb5_err(context, 1, status, "krb5_recvauth"); 137 138 if (ticket->ticket.authorization_data) { 139 AuthorizationData *authz; 140 int i; 141 142 printf("Authorization data:\n"); 143 144 authz = ticket->ticket.authorization_data; 145 for (i = 0; i < authz->len; i++) { 146 printf("\ttype %d, length %lu\n", 147 authz->val[i].ad_type, 148 (unsigned long)authz->val[i].ad_data.length); 149 } 150 } 151 152 data.data = "hej"; 153 data.length = 3; 154 155 krb5_data_zero (&packet); 156 157 status = krb5_mk_safe (context, 158 auth_context, 159 &data, 160 &packet, 161 NULL); 162 if (status) 163 krb5_err(context, 1, status, "krb5_mk_safe"); 164 165 status = krb5_write_message(context, &sock, &packet); 166 if(status) 167 krb5_err(context, 1, status, "krb5_write_message"); 168 169 data.data = "hemligt"; 170 data.length = 7; 171 172 krb5_data_free (&packet); 173 174 status = krb5_mk_priv (context, 175 auth_context, 176 &data, 177 &packet, 178 NULL); 179 if (status) 180 krb5_err(context, 1, status, "krb5_mk_priv"); 181 182 status = krb5_write_message(context, &sock, &packet); 183 if(status) 184 krb5_err(context, 1, status, "krb5_write_message"); 185 return 0; 186 } 187 188 int 189 main(int argc, char **argv) 190 { 191 int port = client_setup(&context, &argc, argv); 192 return client_doit (argv[argc], port, service_str, proto); 193 }