Imported Upstream version 3.7

[debian/elilo] / x86_64 / gzip_loader.c

diff --git a/x86_64/gzip_loader.c b/x86_64/gzip_loader.c
new file mode 100644 (file)
index 0000000..5bf97c7
--- /dev/null
+++ b/x86_64/gzip_loader.c
@@ -0,0 +1,83 @@
+/*
+ *  Copyright (C) 2001-2002 Hewlett-Packard Co.
+ *     Contributed by Stephane Eranian <eranian@hpl.hp.com>
+ *  Copyright (C) 2006-2009 Intel Corporation
+ *     Contributed by Fenghua Yu <fenghua.yu@intel.com>
+ *     Contributed by Bibo Mao <bibo.mao@intel.com>
+ *     Contributed by Chandramouli Narayanan <mouli@linux.intel.com>
+ *
+ * This file is part of the ELILO, the EFI Linux boot loader.
+ *
+ *  ELILO is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  ELILO is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with ELILO; see the file COPYING.  If not, write to the Free
+ *  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+ *  02111-1307, USA.
+ *
+ * Please check out the elilo.txt for complete documentation on how
+ * to use this program.
+ */
+
+#include <efi.h>
+#include <efilib.h>
+
+#include "elilo.h"
+#include "loader.h"
+#include "gzip.h"
+
+static INTN
+gzip_probe_format(CHAR16 *kname)
+{
+       UINT8 buf[4];
+       EFI_STATUS status;
+       INTN ret = -1;
+       UINTN size;
+       fops_fd_t fd;
+
+       status = fops_open(kname, &fd);
+       if (EFI_ERROR(status)) return -1;
+
+       size = sizeof(buf);
+       status = fops_read(fd, buf, &size);
+
+       if (EFI_ERROR(status) || size != sizeof(buf)) goto error;
+
+       ret = gzip_probe(buf, sizeof(buf));
+error:
+       fops_close(fd);
+       return ret;
+}
+
+
+static INTN
+gzip_load_kernel(CHAR16 *kname, kdesc_t *kd)
+{
+       EFI_STATUS status;
+       INT32 ret;
+       fops_fd_t fd;
+
+       status = fops_open(kname, &fd);
+       if (EFI_ERROR(status)) return ELILO_LOAD_ERROR;
+
+       ret = gunzip_kernel(fd, kd);
+       
+       fops_close(fd);
+
+       return ret; /* could be success, error, or abort */
+}
+
+loader_ops_t gzip_loader={
+       NULL,
+       LD_NAME,
+       gzip_probe_format,
+       gzip_load_kernel
+};