return 0;
}
+
+int fec_verity_set_status(struct fec_handle *f, bool enabled)
+{
+ check(f);
+
+ if (!(f->mode & O_RDWR)) {
+ error("cannot update verity magic: read-only handle");
+ errno = EBADF;
+ return -1;
+ }
+
+ verity_info *v = &f->verity;
+
+ if (!v->metadata_start) {
+ error("cannot update verity magic: no metadata found");
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (v->disabled == !enabled) {
+ return 0; /* nothing to do */
+ }
+
+ uint32_t magic = enabled ? VERITY_MAGIC : VERITY_MAGIC_DISABLE;
+
+ if (!raw_pwrite(f, &magic, sizeof(magic), v->metadata_start)) {
+ error("failed to update verity magic to %08x: %s", magic,
+ strerror(errno));
+ return -1;
+ }
+
+ warn("updated verity magic to %08x (%s)", magic,
+ enabled ? "enabled" : "disabled");
+ v->disabled = !enabled;
+
+ return 0;
+}
extern int fec_close(struct fec_handle *f);
+extern int fec_verity_set_status(struct fec_handle *f, bool enabled);
+
extern int fec_verity_get_metadata(struct fec_handle *f,
struct fec_verity_metadata *data);
return get_ecc_metadata(data) && data.valid;
}
+ bool set_verity_status(bool enabled) {
+ return !fec_verity_set_status(handle_.get(), enabled);
+ }
+
private:
handle handle_;
};