static struct ptunit_result from_user_null(void)
{
struct pt_asid user;
int errcode;
pt_asid_init(&user);
errcode = pt_asid_from_user(NULL, NULL);
ptu_int_eq(errcode, -pte_internal);
errcode = pt_asid_from_user(NULL, &user);
ptu_int_eq(errcode, -pte_internal);
return ptu_passed();
}
int pt_image_add_cached(struct pt_image *image,
struct pt_image_section_cache *iscache, int isid,
const struct pt_asid *uasid)
{
struct pt_section *section;
struct pt_asid asid;
uint64_t vaddr;
int errcode, status;
if (!image || !iscache)
return -pte_invalid;
errcode = pt_iscache_lookup(iscache, §ion, &vaddr, isid);
if (errcode < 0)
return errcode;
errcode = pt_asid_from_user(&asid, uasid);
if (errcode < 0)
return errcode;
status = pt_image_add(image, section, &asid, vaddr, isid);
/* We grab a reference when we add the section. Drop the one we
* obtained from cache lookup.
*/
errcode = pt_section_put(section);
if (errcode < 0)
return errcode;
return status;
}
int pt_image_add_file(struct pt_image *image, const char *filename,
uint64_t offset, uint64_t size,
const struct pt_asid *uasid, uint64_t vaddr)
{
struct pt_section *section;
struct pt_asid asid;
int errcode;
if (!image || !filename)
return -pte_invalid;
errcode = pt_asid_from_user(&asid, uasid);
if (errcode < 0)
return errcode;
section = pt_mk_section(filename, offset, size);
if (!section)
return -pte_invalid;
errcode = pt_image_add(image, section, &asid, vaddr, 0);
if (errcode < 0) {
(void) pt_section_put(section);
return errcode;
}
/* The image list got its own reference; let's drop ours. */
errcode = pt_section_put(section);
if (errcode < 0)
return errcode;
return 0;
}
static struct ptunit_result from_user_default(void)
{
struct pt_asid asid;
int errcode;
errcode = pt_asid_from_user(&asid, NULL);
ptu_int_eq(errcode, 0);
ptu_uint_eq(asid.size, sizeof(asid));
ptu_uint_eq(asid.cr3, pt_asid_no_cr3);
ptu_uint_eq(asid.vmcs, pt_asid_no_vmcs);
return ptu_passed();
}
int pt_image_remove_by_filename(struct pt_image *image, const char *filename,
const struct pt_asid *uasid)
{
struct pt_section_list **list;
struct pt_asid asid;
int errcode, removed;
if (!image || !filename)
return -pte_invalid;
errcode = pt_asid_from_user(&asid, uasid);
if (errcode < 0)
return errcode;
removed = 0;
for (list = &image->sections; *list;) {
struct pt_mapped_section *msec;
const struct pt_section *sec;
const struct pt_asid *masid;
struct pt_section_list *trash;
const char *tname;
trash = *list;
msec = &trash->section;
masid = pt_msec_asid(msec);
errcode = pt_asid_match(masid, &asid);
if (errcode < 0)
return errcode;
if (!errcode) {
list = &trash->next;
continue;
}
sec = pt_msec_section(msec);
tname = pt_section_filename(sec);
if (tname && (strcmp(tname, filename) == 0)) {
*list = trash->next;
pt_section_list_free(trash);
removed += 1;
} else
list = &trash->next;
}
return removed;
}
static struct ptunit_result from_user_small(void)
{
struct pt_asid asid, user;
int errcode;
user.size = sizeof(user.size);
errcode = pt_asid_from_user(&asid, &user);
ptu_int_eq(errcode, 0);
ptu_uint_eq(asid.size, sizeof(asid));
ptu_uint_eq(asid.cr3, pt_asid_no_cr3);
ptu_uint_eq(asid.vmcs, pt_asid_no_vmcs);
return ptu_passed();
}
static struct ptunit_result from_user_big(void)
{
struct pt_asid asid, user;
int errcode;
user.size = sizeof(user) + 4;
user.cr3 = 0x4200ull;
user.vmcs = 0x23000ull;
errcode = pt_asid_from_user(&asid, &user);
ptu_int_eq(errcode, 0);
ptu_uint_eq(asid.size, sizeof(asid));
ptu_uint_eq(asid.cr3, 0x4200ull);
ptu_uint_eq(asid.vmcs, 0x23000ull);
return ptu_passed();
}
int pt_image_remove_by_asid(struct pt_image *image,
const struct pt_asid *uasid)
{
struct pt_section_list **list;
struct pt_asid asid;
int errcode, removed;
if (!image)
return -pte_invalid;
errcode = pt_asid_from_user(&asid, uasid);
if (errcode < 0)
return errcode;
removed = 0;
for (list = &image->sections; *list;) {
struct pt_mapped_section *msec;
const struct pt_asid *masid;
struct pt_section_list *trash;
trash = *list;
msec = &trash->section;
masid = pt_msec_asid(msec);
errcode = pt_asid_match(masid, &asid);
if (errcode < 0)
return errcode;
if (!errcode) {
list = &trash->next;
continue;
}
*list = trash->next;
pt_section_list_free(trash);
removed += 1;
}
return removed;
}