Sorry, but this is still wrong. Some of these fields we're filling
completely, and tagging a NUL at the end just doesn't work. I suggest
replacing all the safe_strcpy()s with memcpy()s. Patch below. Thanks,
Alex
Signed-off-by: Alex Williamson <alex.williamson@xxxxxx>
---
diff -r b4121f051773 xen/arch/ia64/xen/dom_fw.c
--- a/xen/arch/ia64/xen/dom_fw.c Tue Jan 30 09:11:31 2007 -0700
+++ b/xen/arch/ia64/xen/dom_fw.c Tue Jan 30 10:18:14 2007 -0700
@@ -337,9 +337,9 @@ dom_fw_fake_acpi(struct domain *d, struc
/* XSDT points to both the FADT and the MADT, so add one entry */
xsdt->length = sizeof(struct xsdt_descriptor_rev2) + sizeof(u64);
xsdt->revision = 1;
- safe_strcpy(xsdt->oem_id, "XEN");
- safe_strcpy(xsdt->oem_table_id, "Xen/ia64");
- safe_strcpy(xsdt->asl_compiler_id, "XEN");
+ memcpy(xsdt->oem_id, "XEN", 3);
+ memcpy(xsdt->oem_table_id, "Xen/ia64", 8);
+ memcpy(xsdt->asl_compiler_id, "XEN", 3);
xsdt->asl_compiler_revision = (xen_major_version() << 16) |
xen_minor_version();
@@ -352,9 +352,9 @@ dom_fw_fake_acpi(struct domain *d, struc
memcpy(fadt->signature, FADT_SIG, sizeof(fadt->signature));
fadt->length = sizeof(struct fadt_descriptor_rev2);
fadt->revision = FADT2_REVISION_ID;
- safe_strcpy(fadt->oem_id, "XEN");
- safe_strcpy(fadt->oem_table_id, "Xen/ia64");
- safe_strcpy(fadt->asl_compiler_id, "XEN");
+ memcpy(fadt->oem_id, "XEN", 3);
+ memcpy(fadt->oem_table_id, "Xen/ia64", 8);
+ memcpy(fadt->asl_compiler_id, "XEN", 3);
fadt->asl_compiler_revision = (xen_major_version() << 16) |
xen_minor_version();
@@ -386,8 +386,8 @@ dom_fw_fake_acpi(struct domain *d, struc
fadt->checksum = generate_acpi_checksum(fadt, fadt->length);
/* setup RSDP */
- safe_strcpy(rsdp->signature, RSDP_SIG);
- safe_strcpy(rsdp->oem_id, "XEN");
+ memcpy(rsdp->signature, RSDP_SIG, strlen(RSDP_SIG));
+ memcpy(rsdp->oem_id, "XEN", 3);
rsdp->revision = 2; /* ACPI 2.0 includes XSDT */
rsdp->length = sizeof(struct acpi20_table_rsdp);
rsdp->xsdt_address = ACPI_TABLE_MPA(xsdt);
@@ -397,11 +397,11 @@ dom_fw_fake_acpi(struct domain *d, struc
rsdp->ext_checksum = generate_acpi_checksum(rsdp, rsdp->length);
/* setup DSDT with trivial namespace. */
- safe_strcpy(dsdt->signature, DSDT_SIG);
+ memcpy(dsdt->signature, DSDT_SIG, strlen(DSDT_SIG));
dsdt->revision = 1;
- safe_strcpy(dsdt->oem_id, "XEN");
- safe_strcpy(dsdt->oem_table_id, "Xen/ia64");
- safe_strcpy(dsdt->asl_compiler_id, "XEN");
+ memcpy(dsdt->oem_id, "XEN", 3);
+ memcpy(dsdt->oem_table_id, "Xen/ia64", 8);
+ memcpy(dsdt->asl_compiler_id, "XEN", 3);
dsdt->asl_compiler_revision = (xen_major_version() << 16) |
xen_minor_version();
@@ -439,9 +439,9 @@ dom_fw_fake_acpi(struct domain *d, struc
/* setup MADT */
memcpy(madt->header.signature, APIC_SIG,
sizeof(madt->header.signature));
madt->header.revision = 2;
- safe_strcpy(madt->header.oem_id, "XEN");
- safe_strcpy(madt->header.oem_table_id, "Xen/ia64");
- safe_strcpy(madt->header.asl_compiler_id, "XEN");
+ memcpy(madt->header.oem_id, "XEN", 3);
+ memcpy(madt->header.oem_table_id, "Xen/ia64", 8);
+ memcpy(madt->header.asl_compiler_id, "XEN", 3);
madt->header.asl_compiler_revision = (xen_major_version() << 16) |
xen_minor_version();
@@ -760,8 +760,8 @@ dom_fw_init(struct domain *d,
tables->sal_systab.sal_rev_major = 0;
tables->sal_systab.entry_count = 2;
- safe_strcpy((char *)tables->sal_systab.oem_id, "Xen/ia64");
- safe_strcpy((char *)tables->sal_systab.product_id, "Xen/ia64");
+ memcpy((char *)tables->sal_systab.oem_id, "Xen/ia64", 8);
+ memcpy((char *)tables->sal_systab.product_id, "Xen/ia64", 8);
/* PAL entry point: */
tables->sal_ed.type = SAL_DESC_ENTRY_POINT;
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