2 * Copyright (c) 1995-2003 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
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34 #include "kafs_locl.h"
36 struct krb5_kafs_data {
39 krb5_const_realm realm;
43 KAFS_RXKAD_2B_KVNO = 213,
44 KAFS_RXKAD_K5_KVNO = 256
48 v5_to_kt(krb5_creds *cred, uid_t uid, struct kafs_token *kt, int local524)
54 /* check if des key */
55 if (cred->session.keyvalue.length != 8)
64 kvno = KAFS_RXKAD_2B_KVNO;
66 ret = decode_Ticket(cred->ticket.data, cred->ticket.length, &t, &len);
72 ASN1_MALLOC_ENCODE(EncryptedData, buf, buf_len, &t.enc_part,
79 return KRB5KRB_ERR_GENERIC;
83 kt->ticket_len = buf_len;
86 kvno = KAFS_RXKAD_K5_KVNO;
87 kt->ticket = malloc(cred->ticket.length);
88 if (kt->ticket == NULL)
90 kt->ticket_len = cred->ticket.length;
91 memcpy(kt->ticket, cred->ticket.data, kt->ticket_len);
98 * Build a struct ClearToken
101 kt->ct.AuthHandle = kvno;
102 memcpy(kt->ct.HandShakeKey, cred->session.keyvalue.data, 8);
104 kt->ct.BeginTimestamp = cred->times.starttime;
105 kt->ct.EndTimestamp = cred->times.endtime;
107 _kafs_fixup_viceid(&kt->ct, uid);
112 static krb5_error_code
113 v5_convert(krb5_context context, krb5_ccache id,
114 krb5_creds *cred, uid_t uid,
116 struct kafs_token *kt)
125 krb5_appdefault_string (context, "libkafs",
127 "afs-use-524", "2b", &val);
130 if (strcasecmp(val, "local") == 0 ||
131 strcasecmp(val, "2b") == 0)
132 ret = v5_to_kt(cred, uid, kt, 1);
134 ret = v5_to_kt(cred, uid, kt, 0);
146 get_cred(struct kafs_data *data, const char *name, const char *inst,
147 const char *realm, uid_t uid, struct kafs_token *kt)
150 krb5_creds in_creds, *out_creds;
151 struct krb5_kafs_data *d = data->data;
154 memset(&in_creds, 0, sizeof(in_creds));
156 ret = krb5_make_principal(d->context, &in_creds.server,
157 realm, name, inst, NULL);
160 ret = krb5_cc_get_principal(d->context, d->id, &in_creds.client);
162 krb5_free_principal(d->context, in_creds.server);
166 in_creds.session.keytype = ETYPE_DES_CBC_CRC;
168 /* check if des is disable, and in that case enable it for afs */
169 invalid = krb5_enctype_valid(d->context, in_creds.session.keytype);
171 krb5_enctype_enable(d->context, in_creds.session.keytype);
173 ret = krb5_get_credentials(d->context, 0, d->id, &in_creds, &out_creds);
175 in_creds.session.keytype = ETYPE_DES_CBC_MD5;
176 ret = krb5_get_credentials(d->context, 0, d->id, &in_creds, &out_creds);
180 krb5_enctype_disable(d->context, in_creds.session.keytype);
182 krb5_free_principal(d->context, in_creds.server);
183 krb5_free_principal(d->context, in_creds.client);
187 ret = v5_convert(d->context, d->id, out_creds, uid,
188 (inst != NULL && inst[0] != '\0') ? inst : realm, kt);
189 krb5_free_creds(d->context, out_creds);
195 get_error(struct kafs_data *data, int error)
197 struct krb5_kafs_data *d = data->data;
198 return krb5_get_error_message(d->context, error);
202 free_error(struct kafs_data *data, const char *str)
204 struct krb5_kafs_data *d = data->data;
205 krb5_free_error_message(d->context, str);
208 static krb5_error_code
209 afslog_uid_int(struct kafs_data *data, const char *cell, const char *rh,
210 uid_t uid, const char *homedir)
213 struct kafs_token kt;
214 krb5_principal princ;
215 const char *trealm; /* ticket realm */
216 struct krb5_kafs_data *d = data->data;
218 if (cell == 0 || cell[0] == 0)
219 return _kafs_afslog_all_local_cells (data, uid, homedir);
221 ret = krb5_cc_get_principal (d->context, d->id, &princ);
225 trealm = krb5_principal_get_realm (d->context, princ);
228 ret = _kafs_get_cred(data, cell, d->realm, trealm, uid, &kt);
229 krb5_free_principal (d->context, princ);
232 ret = kafs_settoken_rxkad(cell, &kt.ct, kt.ticket, kt.ticket_len);
239 get_realm(struct kafs_data *data, const char *host)
241 struct krb5_kafs_data *d = data->data;
244 if(krb5_get_host_realm(d->context, host, &realms))
246 r = strdup(realms[0]);
247 krb5_free_host_realm(d->context, realms);
252 krb5_afslog_uid_home(krb5_context context,
255 krb5_const_realm realm,
260 struct krb5_kafs_data d;
264 kd.afslog_uid = afslog_uid_int;
265 kd.get_cred = get_cred;
266 kd.get_realm = get_realm;
267 kd.get_error = get_error;
268 kd.free_error = free_error;
270 if (context == NULL) {
271 ret = krb5_init_context(&d.context);
277 ret = krb5_cc_default(d.context, &d.id);
283 ret = afslog_uid_int(&kd, cell, 0, uid, homedir);
285 krb5_cc_close(context, d.id);
288 krb5_free_context(d.context);
293 krb5_afslog_uid(krb5_context context,
296 krb5_const_realm realm,
299 return krb5_afslog_uid_home (context, id, cell, realm, uid, NULL);
303 krb5_afslog(krb5_context context,
306 krb5_const_realm realm)
308 return krb5_afslog_uid (context, id, cell, realm, getuid());
312 krb5_afslog_home(krb5_context context,
315 krb5_const_realm realm,
318 return krb5_afslog_uid_home (context, id, cell, realm, getuid(), homedir);
326 krb5_realm_of_cell(const char *cell, char **realm)
331 kd.get_realm = get_realm;
332 kd.get_error = get_error;
333 kd.free_error = free_error;
334 return _kafs_realm_of_cell(&kd, cell, realm);
342 kafs_settoken5(krb5_context context, const char *cell, uid_t uid,
345 struct kafs_token kt;
348 ret = v5_convert(context, NULL, cred, uid, cell, &kt);
352 ret = kafs_settoken_rxkad(cell, &kt.ct, kt.ticket, kt.ticket_len);