KRB5_LIB_FUNCTION void KRB5_LIB_CALL
krb5_generate_random_block(void *buf, size_t len)
{
int ret = krb5_generate_random(buf, len);
if (ret)
krb5_abortx(NULL, "Failed to generate random block");
}
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_init_context(krb5_context *context)
{
static heim_base_once_t init_context = HEIM_BASE_ONCE_INIT;
krb5_context p;
krb5_error_code ret;
char **files;
uint8_t rnd;
*context = NULL;
/**
* krb5_init_context() will get one random byte to make sure our
* random is alive. Assumption is that once the non blocking
* source allows us to pull bytes, its all seeded and allows us to
* pull more bytes.
*
* Most Kerberos users calls krb5_init_context(), so this is
* useful point where we can do the checking.
*/
ret = krb5_generate_random(&rnd, sizeof(rnd));
if (ret)
return ret;
p = calloc(1, sizeof(*p));
if(!p)
return ENOMEM;
p->mutex = malloc(sizeof(HEIMDAL_MUTEX));
if (p->mutex == NULL) {
free(p);
return ENOMEM;
}
HEIMDAL_MUTEX_init(p->mutex);
p->flags |= KRB5_CTX_F_HOMEDIR_ACCESS;
ret = krb5_get_default_config_files(&files);
if(ret)
goto out;
ret = krb5_set_config_files(p, files);
krb5_free_config_files(files);
if(ret)
goto out;
/* done enough to load plugins */
heim_base_once_f(&init_context, p, init_context_once);
/* init error tables */
krb5_init_ets(p);
cc_ops_register(p);
kt_ops_register(p);
#ifdef PKINIT
ret = hx509_context_init(&p->hx509ctx);
if (ret)
goto out;
#endif
if (rk_SOCK_INIT())
p->flags |= KRB5_CTX_F_SOCKETS_INITIALIZED;
out:
if(ret) {
krb5_free_context(p);
p = NULL;
}
*context = p;
return ret;
}
