/*===========================================================================*
* test_label *
*===========================================================================*/
void test_label(void)
{
int r;
char get_label[DS_MAX_KEYLEN];
unsigned long num;
/* Publish and retrieve. */
r = ds_publish_label(key_label, 1234, 0);
assert(r == OK);
r = ds_retrieve_label_num(key_label, &num);
assert(r == OK && num == 1234);
/* Here are the differences w.r.t. U32. */
r = ds_publish_label("hello", 1234, 0);
assert(r == EEXIST);
r = ds_retrieve_label_name(get_label, 1234);
assert(r == OK && strcmp(key_label, get_label) == 0);
r = ds_delete_label(key_label);
assert(r == OK);
printf("DSTEST: LABEL test successful!\n");
}
/*===========================================================================*
* do_mapdriver *
*===========================================================================*/
PUBLIC int do_mapdriver()
{
int r, force, major, proc_nr_n;
unsigned long tasknr;
vir_bytes label_vir;
size_t label_len;
char label[LABEL_MAX];
if (!super_user)
{
printf("FS: unauthorized call of do_mapdriver by proc %d\n",
who_e);
return(EPERM); /* only su (should be only RS or some drivers)
* may call do_mapdriver.
*/
}
/* Get the label */
label_vir= (vir_bytes)m_in.md_label;
label_len= m_in.md_label_len;
if (label_len+1 > sizeof(label))
{
printf("vfs:do_mapdriver: label too long\n");
return EINVAL;
}
r= sys_vircopy(who_e, D, label_vir, SELF, D, (vir_bytes)label,
label_len);
if (r != OK)
{
printf("vfs:do_mapdriver: sys_vircopy failed: %d\n", r);
return EINVAL;
}
label[label_len]= '\0';
r= ds_retrieve_label_num(label, &tasknr);
if (r != OK)
{
printf("vfs:do_mapdriver: ds doesn't know '%s'\n", label);
return EINVAL;
}
if (isokendpt(tasknr, &proc_nr_n) != OK)
{
printf("vfs:do_mapdriver: bad endpoint %d\n", tasknr);
return(EINVAL);
}
/* Try to update device mapping. */
major= m_in.md_major;
force= m_in.md_force;
r= map_driver(label, major, tasknr, m_in.md_style, force);
if (r == OK)
{
/* If a driver has completed its exec(), it can be announced
* to be up.
*/
if(force || fproc[proc_nr_n].fp_execced) {
dev_up(major);
} else {
dmap[major].dmap_flags |= DMAP_BABY;
}
}
return(r);
}
