int KRB5_CALLCONV
krb_in_tkt (
char* pname,
char* pinst,
char* realm)
{
char principal [MAX_K_NAME_SZ + 1];
cc_int32 err = ccNoError;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_ccache_t ccache = NULL;
err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (err == ccNoError) {
sprintf (principal, "%s%s%s@%s", pname, (pinst [0] == '\0') ? "" : ".", pinst, realm);
}
if (err == ccNoError) {
err = cc_context_create_ccache (cc_context, TKT_FILE, cc_credentials_v4, principal, &ccache);
}
if (ccache != NULL)
cc_ccache_release (ccache);
if (cc_context != NULL)
cc_context_release (cc_context);
if (err != ccNoError)
return KFAILURE;
else
return KSUCCESS;
}
static krb5_error_code get_from_os(char *name_buf, unsigned int name_size)
{
krb5_error_code result = 0;
cc_context_t cc_context = NULL;
cc_string_t default_name = NULL;
cc_int32 ccerr = cc_initialize (&cc_context, ccapi_version_3, NULL, NULL);
if (ccerr == ccNoError) {
ccerr = cc_context_get_default_ccache_name (cc_context, &default_name);
}
if (ccerr == ccNoError) {
if (strlen (default_name -> data) + 5 > name_size) {
result = ENOMEM;
goto cleanup;
} else {
snprintf (name_buf, name_size, "API:%s",
default_name -> data);
}
}
cleanup:
if (cc_context != NULL) {
cc_context_release (cc_context);
}
if (default_name != NULL) {
cc_string_release (default_name);
}
return result;
}
/*
* Destroy credentials file
*
* Implementation in dest_tkt.c
*/
int KRB5_CALLCONV
dest_tkt (void)
{
cc_int32 cc_err = ccNoError;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_ccache_t ccache = NULL;
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
cc_err = cc_context_open_ccache (cc_context, TKT_FILE, &ccache);
}
if (cc_err == ccNoError) {
cc_ccache_destroy (ccache);
}
if (ccache != NULL)
cc_ccache_release (ccache);
if (cc_context != NULL)
cc_context_release (cc_context);
if (cc_err != ccNoError)
return RET_TKFIL;
else
return KSUCCESS;
}
/*
* Deletion from credentials file
*/
int KRB5_CALLCONV
krb_delete_cred (
char* sname,
char* sinstance,
char* srealm)
{
cc_credentials_t theCreds = NULL;
cc_credentials_iterator_t iterator = NULL;
cc_int32 cc_err = ccNoError;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_ccache_t ccache = NULL;
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
cc_err = cc_context_open_ccache (cc_context, TKT_FILE, &ccache);
}
if (cc_err == ccNoError) {
cc_err = cc_ccache_new_credentials_iterator (ccache, &iterator);
}
if (cc_err == ccNoError) {
for (;;) {
/* get next creds */
cc_err = cc_credentials_iterator_next (iterator, &theCreds);
if (cc_err != ccNoError) {
break;
}
if ((theCreds -> data -> version == cc_credentials_v4) &&
(strcmp (theCreds -> data -> credentials.credentials_v4 -> service, sname) == 0) &&
(strcmp (theCreds -> data -> credentials.credentials_v4 -> service_instance, sinstance) == 0) &&
(strcmp (theCreds -> data -> credentials.credentials_v4 -> realm, srealm) == 0)) {
cc_ccache_remove_credentials (ccache, theCreds);
cc_credentials_release (theCreds);
break;
}
cc_credentials_release (theCreds);
}
}
if (iterator != NULL)
cc_credentials_iterator_release (iterator);
if (ccache != NULL)
cc_ccache_release (ccache);
if (cc_context != NULL)
cc_context_release (cc_context);
if (cc_err != ccNoError)
return KFAILURE;
else
return KSUCCESS;
}
/*
* Destroy all credential caches
*
* Implementation in memcache.c
*/
int KRB5_CALLCONV
dest_all_tkts (void)
{
int count = 0;
cc_ccache_iterator_t iterator = NULL;
cc_int32 cc_err = ccNoError;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_ccache_t ccache = NULL;
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
cc_err = cc_context_new_ccache_iterator (cc_context, &iterator);
}
if (cc_err == ccNoError) {
for (;;) {
/* get next ccache */
cc_err = cc_ccache_iterator_next (iterator, &ccache);
if (cc_err != ccNoError)
break;
cc_ccache_destroy (ccache);
count++;
}
}
if (iterator != NULL)
cc_credentials_iterator_release (iterator);
if (cc_context != NULL)
cc_context_release (cc_context);
if ((cc_err == ccIteratorEnd) && (count == 0)) {
/* first time, nothing to destroy */
return KFAILURE;
} else {
if (cc_err == ccIteratorEnd) {
/* done */
return KSUCCESS;
} else {
/* error */
return KFAILURE;
}
}
}
/*
* Number of credentials in credentials cache
*/
int KRB5_CALLCONV
krb_get_num_cred (void)
{
cc_credentials_t theCreds = NULL;
int count = 0;
cc_credentials_iterator_t iterator = NULL;
cc_int32 cc_err = ccNoError;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_ccache_t ccache = NULL;
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
cc_err = cc_context_open_ccache (cc_context, TKT_FILE, &ccache);
}
if (cc_err == ccNoError) {
cc_err = cc_ccache_new_credentials_iterator (ccache, &iterator);
}
if (cc_err == ccNoError) {
for (;;) {
/* get next creds */
cc_err = cc_credentials_iterator_next (iterator, &theCreds);
if (cc_err != ccNoError)
break;
if (theCreds -> data -> version == cc_credentials_v4)
count++;
cc_credentials_release (theCreds);
}
}
if (iterator != NULL)
cc_credentials_iterator_release (iterator);
if (ccache != NULL)
cc_ccache_release (ccache);
if (cc_context != NULL)
cc_context_release (cc_context);
if (cc_err != ccNoError)
return 0;
else
return count;
}
/*
* Credentials file -> realm mapping
*
* Determine the realm by opening the named cache and parsing realm from the principal
*/
int KRB5_CALLCONV
krb_get_tf_realm (
const char* ticket_file,
char* realm)
{
cc_string_t principal;
char pname [ANAME_SZ];
char pinst [INST_SZ];
char prealm [REALM_SZ];
int kerr = KSUCCESS;
cc_int32 cc_err = ccNoError;
cc_context_t cc_context = NULL;
cc_int32 cc_version = 0;
cc_ccache_t ccache = NULL;
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
cc_err = cc_context_open_ccache (cc_context, ticket_file, &ccache);
}
if (cc_err == ccNoError) {
cc_err = cc_ccache_get_principal (ccache, cc_credentials_v4, &principal);
}
if (cc_err == ccNoError) {
/* found cache. get princiapl and parse it */
kerr = kname_parse (pname, pinst, prealm, (char*) principal -> data);
cc_string_release (principal);
}
if ((cc_err == ccNoError) && (kerr == KSUCCESS)) {
strcpy (realm, prealm);
}
if (ccache != NULL)
cc_ccache_release (ccache);
if (cc_context != NULL)
cc_context_release (cc_context);
if (kerr != KSUCCESS)
return kerr;
if (cc_err != ccNoError)
return GC_NOTKT;
else
return KSUCCESS;
}
/*
* Credentials file -> name, instance, realm mapping
*/
int KRB5_CALLCONV
krb_get_tf_fullname (
const char* ticket_file,
char* name,
char* instance,
char* realm)
{
cc_string_t principal;
int kerr = KSUCCESS;
cc_int32 cc_err = ccNoError;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_ccache_t ccache = NULL;
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
cc_err = cc_context_open_ccache (cc_context, ticket_file, &ccache);
}
if (cc_err == ccNoError) {
/* found cache. get principal and parse it */
cc_err = cc_ccache_get_principal (ccache, cc_credentials_v4, &principal);
}
if (cc_err == ccNoError) {
kerr = kname_parse (name, instance, realm, (char*) principal -> data);
cc_string_release (principal);
}
if (ccache != NULL)
cc_ccache_release (ccache);
if (cc_context != NULL)
cc_context_release (cc_context);
if (kerr != KSUCCESS)
return kerr;
if (cc_err != ccNoError)
return GC_NOTKT;
else
return KSUCCESS;
}
static void
UpdateDefaultCache (void)
{
cc_string_t name;
cc_int32 cc_err = ccNoError;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
cc_err = cc_context_get_default_ccache_name (cc_context, &name);
}
if (cc_err == ccNoError) {
krb_set_tkt_string ((char*) name -> data);
cc_string_release (name);
}
if (cc_context != NULL)
cc_context_release (cc_context);
}
int check_cc_ccache_iterator_next(void) {
cc_int32 err = 0;
cc_context_t context = NULL;
cc_ccache_t ccache = NULL;
cc_ccache_iterator_t iterator = NULL;
unsigned int i;
BEGIN_TEST("cc_ccache_iterator_next");
err = cc_initialize(&context, ccapi_version_3, NULL, NULL);
if (!err) {
err = destroy_all_ccaches(context);
}
// iterate with no ccaches
if (!err) {
err = cc_context_new_ccache_iterator(context, &iterator);
}
check_once_cc_ccache_iterator_next(iterator, 0, ccNoError, "iterating over an empty collection");
if (iterator) {
cc_ccache_iterator_release(iterator);
iterator = NULL;
}
// iterate with one ccache
if (!err) {
destroy_all_ccaches(context);
err = cc_context_create_new_ccache(context, cc_credentials_v5, "*****@*****.**", &ccache);
}
if (ccache) {
cc_ccache_release(ccache);
ccache = NULL;
}
if (!err) {
err = cc_context_new_ccache_iterator(context, &iterator);
}
check_once_cc_ccache_iterator_next(iterator, 1, ccNoError, "iterating over a collection of 1 ccache");
if (iterator) {
cc_ccache_iterator_release(iterator);
iterator = NULL;
}
// iterate with several ccaches
if (!err) {
destroy_all_ccaches(context);
}
for(i = 0; !err && (i < 1000); i++)
{
if (i%100 == 0) fprintf(stdout, ".");
err = cc_context_create_new_ccache(context, cc_credentials_v5, "*****@*****.**", &ccache);
if (ccache) {
cc_ccache_release(ccache);
ccache = NULL;
}
}
if (!err) {
err = cc_context_new_ccache_iterator(context, &iterator);
}
check_once_cc_ccache_iterator_next(iterator, 1000, ccNoError, "iterating over a collection of 1000 ccache");
if (iterator) {
cc_ccache_iterator_release(iterator);
iterator = NULL;
}
if (ccache) { cc_ccache_release(ccache); }
if (iterator) { cc_ccache_iterator_release(iterator); }
if (context) {
destroy_all_ccaches(context);
cc_context_release(context);
}
END_TEST_AND_RETURN
}
/* krb5_stdcc_shutdown is exported; use the old name */
void krb5_stdcc_shutdown()
{
if (gCntrlBlock) { cc_context_release(gCntrlBlock); }
gCntrlBlock = NULL;
gCCVersion = 0;
}
/*
* Retrieval from credentials file
* This function is _not_!! well-defined under CCache API, because
* there is no guarantee about order of credentials remaining the same.
*/
int KRB5_CALLCONV
krb_get_nth_cred (
char* sname,
char* sinstance,
char* srealm,
int n)
{
cc_credentials_t theCreds = NULL;
int count = 0;
cc_credentials_iterator_t iterator = NULL;
cc_int32 cc_err = ccNoError;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_ccache_t ccache = NULL;
if (n < 1)
return KFAILURE;
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
cc_err = cc_context_open_ccache (cc_context, TKT_FILE, &ccache);
}
if (cc_err == ccNoError) {
cc_err = cc_ccache_new_credentials_iterator (ccache, &iterator);
}
if (cc_err == ccNoError) {
for (count = 0; count < n;) {
/* get next creds */
cc_err = cc_credentials_iterator_next (iterator, &theCreds);
if (cc_err != ccNoError)
break;
if (theCreds -> data -> version == cc_credentials_v4)
count++;
if (count < n - 1)
cc_credentials_release (theCreds);
}
}
if (cc_err == ccNoError) {
strcpy (sname, theCreds -> data -> credentials.credentials_v4 -> service);
strcpy (sinstance, theCreds -> data -> credentials.credentials_v4 -> service_instance);
strcpy (srealm, theCreds -> data -> credentials.credentials_v4 -> realm);
}
if (theCreds != NULL)
cc_credentials_release (theCreds);
if (iterator != NULL)
cc_credentials_iterator_release (iterator);
if (ccache != NULL)
cc_ccache_release (ccache);
if (cc_context != NULL)
cc_context_release (cc_context);
if (cc_err != ccNoError)
return KFAILURE;
else
return KSUCCESS;
}
/*
* Retrieval from credentials cache
*/
int KRB5_CALLCONV
krb_get_cred (
char* service,
char* instance,
char* realm,
CREDENTIALS* creds)
{
int kerr = KSUCCESS;
cc_int32 cc_err = ccNoError;
cc_credentials_t theCreds = NULL;
cc_credentials_iterator_t iterator = NULL;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_ccache_t ccache = NULL;
#ifdef USE_LOGIN_LIBRARY
// If we are requesting a tgt, prompt for it
if (strncmp (service, KRB_TICKET_GRANTING_TICKET, ANAME_SZ) == 0) {
OSStatus err;
char *cacheName;
KLPrincipal outPrincipal;
err = __KLInternalAcquireInitialTicketsForCache (TKT_FILE, kerberosVersion_V4, NULL,
&outPrincipal, &cacheName);
if (err == klNoErr) {
krb_set_tkt_string (cacheName); // Tickets for the krb4 principal went here
KLDisposeString (cacheName);
KLDisposePrincipal (outPrincipal);
} else {
return GC_NOTKT;
}
}
#endif /* USE_LOGIN_LIBRARY */
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
cc_err = cc_context_open_ccache (cc_context, TKT_FILE, &ccache);
}
if (cc_err == ccNoError) {
cc_err = cc_ccache_new_credentials_iterator (ccache, &iterator);
}
if (cc_err == ccNoError) {
for (;;) {
/* get next creds */
cc_err = cc_credentials_iterator_next (iterator, &theCreds);
if (cc_err == ccIteratorEnd) {
kerr = GC_NOTKT;
break;
}
if (cc_err != ccNoError) {
kerr = KFAILURE;
break;
}
/* version, service, instance, realm check */
if ((theCreds -> data -> version == cc_credentials_v4) &&
(strcmp (theCreds -> data -> credentials.credentials_v4 -> service, service) == 0) &&
(strcmp (theCreds -> data -> credentials.credentials_v4 -> service_instance, instance) == 0) &&
(strcmp (theCreds -> data -> credentials.credentials_v4 -> realm, realm) == 0)) {
/* Match! */
strcpy (creds -> service, service);
strcpy (creds -> instance, instance);
strcpy (creds -> realm, realm);
memmove (creds -> session, theCreds -> data -> credentials.credentials_v4 -> session_key, sizeof (C_Block));
creds -> lifetime = theCreds -> data -> credentials.credentials_v4 -> lifetime;
creds -> kvno = theCreds -> data -> credentials.credentials_v4 -> kvno;
creds -> ticket_st.length = theCreds -> data -> credentials.credentials_v4 -> ticket_size;
memmove (creds -> ticket_st.dat, theCreds -> data -> credentials.credentials_v4 -> ticket, creds -> ticket_st.length);
creds -> issue_date = theCreds -> data -> credentials.credentials_v4 -> issue_date;
strcpy (creds -> pname, theCreds -> data -> credentials.credentials_v4 -> principal);
strcpy (creds -> pinst, theCreds -> data -> credentials.credentials_v4 -> principal_instance);
creds -> stk_type = theCreds -> data -> credentials.credentials_v4 -> string_to_key_type;
cc_credentials_release (theCreds);
kerr = KSUCCESS;
break;
} else {
cc_credentials_release (theCreds);
}
}
}
if (iterator != NULL)
cc_credentials_iterator_release (iterator);
if (ccache != NULL)
cc_ccache_release (ccache);
if (cc_context != NULL)
cc_context_release (cc_context);
if (kerr != KSUCCESS)
return kerr;
if (cc_err != ccNoError)
return GC_NOTKT;
else
return KSUCCESS;
}
/*
* Store a ticket into the default credentials cache
* cache must exist (if it didn't exist, it would have been created by in_tkt)
*/
int
krb4int_save_credentials_addr(
char* service,
char* instance,
char* realm,
C_Block session,
int lifetime,
int kvno,
KTEXT ticket,
KRB4_32 issue_date,
KRB_UINT32 local_address)
{
cc_int32 cc_err = ccNoError;
int kerr = KSUCCESS;
cc_credentials_v4_t v4creds;
cc_credentials_union creds;
cc_ccache_t ccache = NULL;
cc_string_t principal;
cc_context_t cc_context = NULL;
cc_int32 cc_version;
cc_err = cc_initialize (&cc_context, ccapi_version_3, &cc_version, NULL);
if (cc_err == ccNoError) {
/* First try existing cache */
cc_err = cc_context_open_ccache (cc_context, TKT_FILE, &ccache);
}
if (cc_err == ccNoError) {
/* Now we have a cache. Fill out the credentials and put them in the cache. */
/* To fill out the credentials, we need the principal */
cc_err = cc_ccache_get_principal (ccache, cc_credentials_v4, &principal);
}
if (cc_err == ccNoError) {
kerr = kname_parse (v4creds.principal, v4creds.principal_instance, v4creds.realm, (char*) principal -> data);
cc_string_release (principal);
}
if ((cc_err == ccNoError) && (kerr == KSUCCESS)) {
strncpy (v4creds.service, service, SNAME_SZ);
strncpy (v4creds.service_instance, instance, INST_SZ);
strncpy (v4creds.realm, realm, REALM_SZ);
memmove (v4creds.session_key, session, sizeof (C_Block));
v4creds.kvno = kvno;
v4creds.string_to_key_type = cc_v4_stk_unknown;
v4creds.issue_date = issue_date;
v4creds.address = local_address;
v4creds.lifetime = lifetime;
v4creds.ticket_size = ticket -> length;
memmove (v4creds.ticket, ticket -> dat, ticket -> length);
creds.version = cc_credentials_v4;
creds.credentials.credentials_v4 = &v4creds;
cc_err = cc_ccache_store_credentials (ccache, &creds);
}
if (ccache != NULL)
cc_ccache_release (ccache);
if (cc_context != NULL)
cc_context_release (cc_context);
if (kerr != KSUCCESS)
return kerr;
if (cc_err != ccNoError)
return KFAILURE;
else
return KSUCCESS;
}