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Merged MAP and VIRTMEM/PHYSMEM capabilities into one.

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VIRTMEM and PHYSMEM are theoretically separate resources to be
protected than a MAP resource, which is meant to protect the syscall
privileges.

In practice MAP is always used together with a VIRTMEM and a PHYSMEM
resource, therefore reach VIRTMEM/PHYSMEM resource is now merged with
the MAP capability, combining the micro-permission bits.
This commit is contained in:
Bahadir Balban
2009-11-04 15:26:47 +02:00
parent b7e575817d
commit db57c598b0
5 changed files with 51 additions and 47 deletions
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10
src/generic/resource.c
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@@ -746,7 +746,7 @@ int process_cap_info(struct cap_info *cap,
{
int ret = 0;
switch (cap->type & CAP_RTYPE_MASK) {
switch (cap_rtype(cap)) {
case CAP_RTYPE_THREADPOOL:
bootres->nthreads += cap->size;
break;
@@ -768,8 +768,10 @@ int process_cap_info(struct cap_info *cap,
/* Specifies how many new caps can be created */
bootres->ncaps += cap->size;
break;
}
case CAP_RTYPE_VIRTMEM:
switch (cap_type(cap)) {
case CAP_TYPE_MAP_VIRTMEM:
if ((ret = memcap_unmap(&kres->virtmem_free,
cap->start, cap->end))) {
if (ret < 0)
@@ -787,7 +789,7 @@ int process_cap_info(struct cap_info *cap,
}
break;
case CAP_RTYPE_PHYSMEM:
case CAP_TYPE_MAP_PHYSMEM:
if ((ret = memcap_unmap(&kres->physmem_free,
cap->start, cap->end))) {
if (ret < 0)
@@ -804,8 +806,8 @@ int process_cap_info(struct cap_info *cap,
BUG();
}
break;
}
}
return ret;
}