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)
60 kvno = KAFS_RXKAD_2B_KVNO;
62 ret = decode_Ticket(cred->ticket.data, cred->ticket.length, &t, &len);
68 ASN1_MALLOC_ENCODE(EncryptedData, buf, buf_len, &t.enc_part,
75 return KRB5KRB_ERR_GENERIC;
79 kt->ticket_len = buf_len;
82 kvno = KAFS_RXKAD_K5_KVNO;
83 kt->ticket = malloc(cred->ticket.length);
84 if (kt->ticket == NULL)
86 kt->ticket_len = cred->ticket.length;
87 memcpy(kt->ticket, cred->ticket.data, kt->ticket_len);
94 * Build a struct ClearToken
97 ret = _kafs_derive_des_key(cred->session.keytype,
98 cred->session.keyvalue.data,
99 cred->session.keyvalue.length,
100 kt->ct.HandShakeKey);
106 kt->ct.AuthHandle = kvno;
108 kt->ct.BeginTimestamp = cred->times.starttime;
109 kt->ct.EndTimestamp = cred->times.endtime;
111 _kafs_fixup_viceid(&kt->ct, uid);
116 static krb5_error_code
117 v5_convert(krb5_context context, krb5_ccache id,
118 krb5_creds *cred, uid_t uid,
120 struct kafs_token *kt)
129 krb5_appdefault_string (context, "libkafs",
131 "afs-use-524", "2b", &val);
134 if (strcasecmp(val, "local") == 0 ||
135 strcasecmp(val, "2b") == 0)
136 ret = v5_to_kt(cred, uid, kt, 1);
138 ret = v5_to_kt(cred, uid, kt, 0);
150 get_cred(struct kafs_data *data, const char *name, const char *inst,
151 const char *realm, uid_t uid, struct kafs_token *kt)
154 krb5_creds in_creds, *out_creds;
155 struct krb5_kafs_data *d = data->data;
158 memset(&in_creds, 0, sizeof(in_creds));
160 ret = krb5_make_principal(d->context, &in_creds.server,
161 realm, name, inst, NULL);
164 ret = krb5_cc_get_principal(d->context, d->id, &in_creds.client);
166 krb5_free_principal(d->context, in_creds.server);
170 /* check if des is disable, and in that case enable it for afs */
171 invalid = krb5_enctype_valid(d->context, ETYPE_DES_CBC_CRC);
173 krb5_enctype_enable(d->context, ETYPE_DES_CBC_CRC);
175 ret = krb5_get_credentials(d->context, 0, d->id, &in_creds, &out_creds);
178 krb5_enctype_disable(d->context, ETYPE_DES_CBC_CRC);
180 krb5_free_principal(d->context, in_creds.server);
181 krb5_free_principal(d->context, in_creds.client);
185 ret = v5_convert(d->context, d->id, out_creds, uid,
186 (inst != NULL && inst[0] != '\0') ? inst : realm, kt);
187 krb5_free_creds(d->context, out_creds);
193 get_error(struct kafs_data *data, int error)
195 struct krb5_kafs_data *d = data->data;
196 return krb5_get_error_message(d->context, error);
200 free_error(struct kafs_data *data, const char *str)
202 struct krb5_kafs_data *d = data->data;
203 krb5_free_error_message(d->context, str);
206 static krb5_error_code
207 afslog_uid_int(struct kafs_data *data, const char *cell, const char *rh,
208 uid_t uid, const char *homedir)
211 struct kafs_token kt;
212 krb5_principal princ;
213 const char *trealm; /* ticket realm */
214 struct krb5_kafs_data *d = data->data;
216 if (cell == 0 || cell[0] == 0)
217 return _kafs_afslog_all_local_cells (data, uid, homedir);
219 ret = krb5_cc_get_principal (d->context, d->id, &princ);
223 trealm = krb5_principal_get_realm (d->context, princ);
226 ret = _kafs_get_cred(data, cell, d->realm, trealm, uid, &kt);
227 krb5_free_principal (d->context, princ);
230 ret = kafs_settoken_rxkad(cell, &kt.ct, kt.ticket, kt.ticket_len);
237 get_realm(struct kafs_data *data, const char *host)
239 struct krb5_kafs_data *d = data->data;
242 if(krb5_get_host_realm(d->context, host, &realms))
244 r = strdup(realms[0]);
245 krb5_free_host_realm(d->context, realms);
250 krb5_afslog_uid_home(krb5_context context,
253 krb5_const_realm realm,
258 struct krb5_kafs_data d;
262 kd.afslog_uid = afslog_uid_int;
263 kd.get_cred = get_cred;
264 kd.get_realm = get_realm;
265 kd.get_error = get_error;
266 kd.free_error = free_error;
268 if (context == NULL) {
269 ret = krb5_init_context(&d.context);
275 ret = krb5_cc_default(d.context, &d.id);
281 ret = afslog_uid_int(&kd, cell, 0, uid, homedir);
283 krb5_cc_close(context, d.id);
286 krb5_free_context(d.context);
291 krb5_afslog_uid(krb5_context context,
294 krb5_const_realm realm,
297 return krb5_afslog_uid_home (context, id, cell, realm, uid, NULL);
301 krb5_afslog(krb5_context context,
304 krb5_const_realm realm)
306 return krb5_afslog_uid (context, id, cell, realm, getuid());
310 krb5_afslog_home(krb5_context context,
313 krb5_const_realm realm,
316 return krb5_afslog_uid_home (context, id, cell, realm, getuid(), homedir);
324 krb5_realm_of_cell(const char *cell, char **realm)
329 kd.get_realm = get_realm;
330 kd.get_error = get_error;
331 kd.free_error = free_error;
332 return _kafs_realm_of_cell(&kd, cell, realm);
340 kafs_settoken5(krb5_context context, const char *cell, uid_t uid,
343 struct kafs_token kt;
346 ret = v5_convert(context, NULL, cred, uid, cell, &kt);
350 ret = kafs_settoken_rxkad(cell, &kt.ct, kt.ticket, kt.ticket_len);