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 1.15 2006/10/14 09:53:19 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 /* It is not an error if nothing in here, that is reported by *found */
111 /* Setting a default error causes found to be set to FALSE, on
112 * recursion to an second embedded authz data even if the first
113 * element contains the required type */
114 krb5_error_code ret = 0;
118 krb5_set_error_string(context, "Authorization data nested deeper "
119 "then %d levels, stop searching", level);
120 ret = ENOENT; /* XXX */
125 * Only copy out the element the first time we get to it, we need
126 * to run over the whole authorization data fields to check if
127 * there are any container clases we need to care about.
129 for (i = 0; i < ad->len; i++) {
130 if (!*found && ad->val[i].ad_type == type) {
131 ret = der_copy_octet_string(&ad->val[i].ad_data, data);
133 krb5_set_error_string(context, "malloc - out of memory");
139 switch (ad->val[i].ad_type) {
140 case KRB5_AUTHDATA_IF_RELEVANT: {
141 AuthorizationData child;
142 ret = decode_AuthorizationData(ad->val[i].ad_data.data,
143 ad->val[i].ad_data.length,
147 krb5_set_error_string(context, "Failed to decode "
148 "IF_RELEVANT with %d", ret);
151 ret = find_type_in_ad(context, type, data, found, 0, sessionkey,
153 free_AuthorizationData(&child);
159 case KRB5_AUTHDATA_KDC_ISSUED: {
162 ret = decode_AD_KDCIssued(ad->val[i].ad_data.data,
163 ad->val[i].ad_data.length,
167 krb5_set_error_string(context, "Failed to decode "
168 "AD_KDCIssued with %d", ret);
176 ASN1_MALLOC_ENCODE(AuthorizationData, buf.data, buf.length,
177 &child.elements, &len, ret);
179 free_AD_KDCIssued(&child);
180 krb5_clear_error_string(context);
183 if(buf.length != len)
184 krb5_abortx(context, "internal error in ASN.1 encoder");
186 ret = krb5_c_verify_checksum(context, sessionkey, 19, &buf,
187 &child.ad_checksum, &valid);
188 krb5_data_free(&buf);
190 free_AD_KDCIssued(&child);
194 krb5_clear_error_string(context);
196 free_AD_KDCIssued(&child);
200 ret = find_type_in_ad(context, type, data, found, failp, sessionkey,
201 &child.elements, level + 1);
202 free_AD_KDCIssued(&child);
208 case KRB5_AUTHDATA_AND_OR:
211 krb5_set_error_string(context, "Authorization data contains "
212 "AND-OR element that is unknown to the "
214 ret = ENOENT; /* XXX */
219 krb5_set_error_string(context, "Authorization data contains "
220 "unknown type (%d) ", ad->val[i].ad_type);
221 ret = ENOENT; /* XXX */
228 krb5_data_free(data);
236 _krb5_find_type_in_ad(krb5_context context,
240 krb5_keyblock *sessionkey,
241 const AuthorizationData *ad)
243 krb5_data_zero(data);
244 return find_type_in_ad(context, type, data, found, TRUE, sessionkey, ad, 0);
249 * Extract the authorization data type of `type' from the
250 * 'ticket'. Store the field in `data'. This function is to use for
251 * kerberos applications.
254 krb5_error_code KRB5_LIB_FUNCTION
255 krb5_ticket_get_authorization_data_type(krb5_context context,
260 AuthorizationData *ad;
262 krb5_boolean found = 0;
264 ad = ticket->ticket.authorization_data;
265 if (ticket->ticket.authorization_data == NULL) {
266 krb5_set_error_string(context, "Ticket have not authorization data");
267 return ENOENT; /* XXX */
270 ret = _krb5_find_type_in_ad(context, type, data, &found, &ticket->ticket.key,
271 ticket->ticket.authorization_data);
275 krb5_set_error_string(context, "Ticket have not authorization "
276 "data of type %d", type);
277 return ENOENT; /* XXX */