2 * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
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34 #include "krb5_locl.h"
36 RCSID("$Id: ticket.c,v 1.14 2005/10/27 13:21:42 lha Exp $");
38 krb5_error_code KRB5_LIB_FUNCTION
39 krb5_free_ticket(krb5_context context,
42 free_EncTicketPart(&ticket->ticket);
43 krb5_free_principal(context, ticket->client);
44 krb5_free_principal(context, ticket->server);
49 krb5_error_code KRB5_LIB_FUNCTION
50 krb5_copy_ticket(krb5_context context,
51 const krb5_ticket *from,
58 tmp = malloc(sizeof(*tmp));
60 krb5_set_error_string (context, "malloc: out of memory");
63 if((ret = copy_EncTicketPart(&from->ticket, &tmp->ticket))){
67 ret = krb5_copy_principal(context, from->client, &tmp->client);
69 free_EncTicketPart(&tmp->ticket);
73 ret = krb5_copy_principal(context, from->server, &tmp->server);
75 krb5_free_principal(context, tmp->client);
76 free_EncTicketPart(&tmp->ticket);
84 krb5_error_code KRB5_LIB_FUNCTION
85 krb5_ticket_get_client(krb5_context context,
86 const krb5_ticket *ticket,
87 krb5_principal *client)
89 return krb5_copy_principal(context, ticket->client, client);
92 krb5_error_code KRB5_LIB_FUNCTION
93 krb5_ticket_get_server(krb5_context context,
94 const krb5_ticket *ticket,
95 krb5_principal *server)
97 return krb5_copy_principal(context, ticket->server, server);
101 find_type_in_ad(krb5_context context,
106 krb5_keyblock *sessionkey,
107 const AuthorizationData *ad,
110 krb5_error_code ret = ENOENT;
114 krb5_set_error_string(context, "Authorization data nested deeper "
115 "then %d levels, stop searching", level);
116 ret = ENOENT; /* XXX */
121 * Only copy out the element the first time we get to it, we need
122 * to run over the whole authorization data fields to check if
123 * there are any container clases we need to care about.
125 for (i = 0; i < ad->len; i++) {
126 if (!*found && ad->val[i].ad_type == type) {
127 ret = copy_octet_string(&ad->val[i].ad_data, data);
129 krb5_set_error_string(context, "malloc - out of memory");
135 switch (ad->val[i].ad_type) {
136 case KRB5_AUTHDATA_IF_RELEVANT: {
137 AuthorizationData child;
138 ret = decode_AuthorizationData(ad->val[i].ad_data.data,
139 ad->val[i].ad_data.length,
143 krb5_set_error_string(context, "Failed to decode "
144 "IF_RELEVANT with %d", ret);
147 ret = find_type_in_ad(context, type, data, found, 0, sessionkey,
149 free_AuthorizationData(&child);
155 case KRB5_AUTHDATA_KDC_ISSUED: {
158 ret = decode_AD_KDCIssued(ad->val[i].ad_data.data,
159 ad->val[i].ad_data.length,
163 krb5_set_error_string(context, "Failed to decode "
164 "AD_KDCIssued with %d", ret);
172 ASN1_MALLOC_ENCODE(AuthorizationData, buf.data, buf.length,
173 &child.elements, &len, ret);
175 free_AD_KDCIssued(&child);
176 krb5_clear_error_string(context);
179 if(buf.length != len)
180 krb5_abortx(context, "internal error in ASN.1 encoder");
182 ret = krb5_c_verify_checksum(context, sessionkey, 19, &buf,
183 &child.ad_checksum, &valid);
184 krb5_data_free(&buf);
186 free_AD_KDCIssued(&child);
190 krb5_clear_error_string(context);
192 free_AD_KDCIssued(&child);
196 ret = find_type_in_ad(context, type, data, found, failp, sessionkey,
197 &child.elements, level + 1);
198 free_AD_KDCIssued(&child);
204 case KRB5_AUTHDATA_AND_OR:
207 krb5_set_error_string(context, "Authorization data contains "
208 "AND-OR element that is unknown to the "
210 ret = ENOENT; /* XXX */
215 krb5_set_error_string(context, "Authorization data contains "
216 "unknown type (%d) ", ad->val[i].ad_type);
217 ret = ENOENT; /* XXX */
224 krb5_data_free(data);
232 _krb5_find_type_in_ad(krb5_context context,
236 krb5_keyblock *sessionkey,
237 const AuthorizationData *ad)
239 krb5_data_zero(data);
240 return find_type_in_ad(context, type, data, found, TRUE, sessionkey, ad, 0);
245 * Extract the authorization data type of `type' from the
246 * 'ticket'. Store the field in `data'. This function is to use for
247 * kerberos applications.
250 krb5_error_code KRB5_LIB_FUNCTION
251 krb5_ticket_get_authorization_data_type(krb5_context context,
256 AuthorizationData *ad;
258 krb5_boolean found = 0;
260 ad = ticket->ticket.authorization_data;
261 if (ticket->ticket.authorization_data == NULL) {
262 krb5_set_error_string(context, "Ticket have not authorization data");
263 return ENOENT; /* XXX */
266 ret = _krb5_find_type_in_ad(context, type, data, &found, &ticket->ticket.key,
267 ticket->ticket.authorization_data);
271 krb5_set_error_string(context, "Ticket have not authorization "
272 "data of type %d", type);
273 return ENOENT; /* XXX */