55 lines
1 KiB
C
55 lines
1 KiB
C
/*
|
|
pci_set_acl.c
|
|
*/
|
|
|
|
#include "pci.h"
|
|
#include "syslib.h"
|
|
#include <unistd.h>
|
|
#include <minix/rs.h>
|
|
#include <minix/ds.h>
|
|
#include <minix/sysutil.h>
|
|
|
|
/*===========================================================================*
|
|
* pci_set_acl *
|
|
*===========================================================================*/
|
|
PUBLIC int pci_set_acl(rs_pci)
|
|
struct rs_pci *rs_pci;
|
|
{
|
|
int r;
|
|
cp_grant_id_t gid;
|
|
message m;
|
|
u32_t u32;
|
|
|
|
if (pci_procnr == ANY)
|
|
{
|
|
r= ds_retrieve_label_num("pci", &u32);
|
|
if (r != 0)
|
|
{
|
|
panic("syslib/" __FILE__,
|
|
"pci_set_acl: ds_retrieve_label_num failed for 'pci'",
|
|
r);
|
|
}
|
|
pci_procnr = u32;
|
|
}
|
|
|
|
|
|
gid= cpf_grant_direct(pci_procnr, (vir_bytes)rs_pci, sizeof(*rs_pci),
|
|
CPF_READ);
|
|
if (gid == -1)
|
|
{
|
|
printf("pci_set_acl: cpf_grant_direct failed: %d\n",
|
|
errno);
|
|
return EINVAL;
|
|
}
|
|
|
|
m.m_type= BUSC_PCI_SET_ACL;
|
|
m.m1_i1= gid;
|
|
|
|
r= sendrec(pci_procnr, &m);
|
|
cpf_revoke(gid);
|
|
if (r != 0)
|
|
panic("syslib/" __FILE__, "pci_set_acl: can't talk to PCI", r);
|
|
|
|
return m.m_type;
|
|
}
|
|
|