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authorJorgen Lundman <lundman@lundman.net>2012-07-19 20:48:25 +0000
committerWolfgang Denk <wd@denx.de>2012-08-09 23:42:20 +0200
commit4d3c95f5ea7c737a21cd6b9c59435ee693b3f127 (patch)
treed11c09245a46d3b0a55c0937874fb2debcb96490 /common/cmd_zfs.c
parent753ac610880e6e563d0384bb114f8b41df89e520 (diff)
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zfs: Add ZFS filesystem support
U-Boot port is based on sources forked from GRUB-0.97 by Sun in 2004, which can be found here: http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/grub/grub-0.97/stage2/zfs-include/zfs.h Released by Sun for GRUB under the license: * This program 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 of the License, or * (at your option) any later version. GRUB official releases include ZFS in version: ftp://alpha.gnu.org/gnu/grub/grub-1.99~rc1.tar.gz And patched against GRUB Bazaar repository for ashift fixes (4KB HDDs) more conveniently found at github: https://github.com/pendor/grub-zfs/commit/e7b6ef3ac3b9685ac4c394c897b1d4221b7381f1 Signed-off-by: Jorgen Lundman <lundman@lundman.net>
Diffstat (limited to 'common/cmd_zfs.c')
-rw-r--r--common/cmd_zfs.c236
1 files changed, 236 insertions, 0 deletions
diff --git a/common/cmd_zfs.c b/common/cmd_zfs.c
new file mode 100644
index 0000000..a6ea2c0
--- /dev/null
+++ b/common/cmd_zfs.c
@@ -0,0 +1,236 @@
+/*
+ *
+ * ZFS filesystem porting to Uboot by
+ * Jorgen Lundman <lundman at lundman.net>
+ *
+ * zfsfs support
+ * made from existing GRUB Sources by Sun, GNU and others.
+ *
+ * This program 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 of
+ * the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <common.h>
+#include <part.h>
+#include <config.h>
+#include <command.h>
+#include <image.h>
+#include <linux/ctype.h>
+#include <asm/byteorder.h>
+#include <zfs_common.h>
+#include <linux/stat.h>
+#include <malloc.h>
+
+#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
+#include <usb.h>
+#endif
+
+#if !defined(CONFIG_DOS_PARTITION) && !defined(CONFIG_EFI_PARTITION)
+#error DOS or EFI partition support must be selected
+#endif
+
+#define DOS_PART_MAGIC_OFFSET 0x1fe
+#define DOS_FS_TYPE_OFFSET 0x36
+#define DOS_FS32_TYPE_OFFSET 0x52
+
+static int do_zfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ char *filename = NULL;
+ char *ep;
+ int dev;
+ unsigned long part = 1;
+ ulong addr = 0;
+ ulong part_length;
+ disk_partition_t info;
+ char buf[12];
+ unsigned long count;
+ const char *addr_str;
+ struct zfs_file zfile;
+ struct device_s vdev;
+
+ if (argc < 3)
+ return CMD_RET_USAGE;
+
+ count = 0;
+ addr = simple_strtoul(argv[3], NULL, 16);
+ filename = getenv("bootfile");
+ switch (argc) {
+ case 3:
+ addr_str = getenv("loadaddr");
+ if (addr_str != NULL)
+ addr = simple_strtoul(addr_str, NULL, 16);
+ else
+ addr = CONFIG_SYS_LOAD_ADDR;
+
+ break;
+ case 4:
+ break;
+ case 5:
+ filename = argv[4];
+ break;
+ case 6:
+ filename = argv[4];
+ count = simple_strtoul(argv[5], NULL, 16);
+ break;
+
+ default:
+ return cmd_usage(cmdtp);
+ }
+
+ if (!filename) {
+ puts("** No boot file defined **\n");
+ return 1;
+ }
+
+ dev = (int)simple_strtoul(argv[2], &ep, 16);
+ zfs_dev_desc = get_dev(argv[1], dev);
+ if (zfs_dev_desc == NULL) {
+ printf("** Block device %s %d not supported\n", argv[1], dev);
+ return 1;
+ }
+
+ if (*ep) {
+ if (*ep != ':') {
+ puts("** Invalid boot device, use `dev[:part]' **\n");
+ return 1;
+ }
+ part = simple_strtoul(++ep, NULL, 16);
+ }
+
+ if (part != 0) {
+ if (get_partition_info(zfs_dev_desc, part, &info)) {
+ printf("** Bad partition %lu **\n", part);
+ return 1;
+ }
+
+ if (strncmp((char *)info.type, BOOT_PART_TYPE,
+ strlen(BOOT_PART_TYPE)) != 0) {
+ printf("** Invalid partition type \"%s\" (expect \"" BOOT_PART_TYPE "\")\n",
+ info.type);
+ return 1;
+ }
+ printf("Loading file \"%s\" "
+ "from %s device %d:%lu %s\n",
+ filename, argv[1], dev, part, info.name);
+ } else {
+ printf("Loading file \"%s\" from %s device %d\n",
+ filename, argv[1], dev);
+ }
+
+ part_length = zfs_set_blk_dev(zfs_dev_desc, part);
+ if (part_length == 0) {
+ printf("**Bad partition - %s %d:%lu **\n", argv[1], dev, part);
+ return 1;
+ }
+
+ vdev.part_length = part_length;
+
+ memset(&zfile, 0, sizeof(zfile));
+ zfile.device = &vdev;
+ if (zfs_open(&zfile, filename)) {
+ printf("** File not found %s\n", filename);
+ return 1;
+ }
+
+ if ((count < zfile.size) && (count != 0))
+ zfile.size = (uint64_t)count;
+
+ if (zfs_read(&zfile, (char *)addr, zfile.size) != zfile.size) {
+ printf("** Unable to read \"%s\" from %s %d:%lu **\n",
+ filename, argv[1], dev, part);
+ zfs_close(&zfile);
+ return 1;
+ }
+
+ zfs_close(&zfile);
+
+ /* Loading ok, update default load address */
+ load_addr = addr;
+
+ printf("%llu bytes read\n", zfile.size);
+ sprintf(buf, "%llX", zfile.size);
+ setenv("filesize", buf);
+
+ return 0;
+}
+
+
+int zfs_print(const char *entry, const struct zfs_dirhook_info *data)
+{
+ printf("%s %s\n",
+ data->dir ? "<DIR> " : " ",
+ entry);
+ return 0; /* 0 continue, 1 stop */
+}
+
+
+
+static int do_zfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ const char *filename = "/";
+ int dev;
+ unsigned long part = 1;
+ char *ep;
+ int part_length;
+ struct device_s vdev;
+
+ if (argc < 3)
+ return cmd_usage(cmdtp);
+
+ dev = (int)simple_strtoul(argv[2], &ep, 16);
+ zfs_dev_desc = get_dev(argv[1], dev);
+
+ if (zfs_dev_desc == NULL) {
+ printf("\n** Block device %s %d not supported\n", argv[1], dev);
+ return 1;
+ }
+
+ if (*ep) {
+ if (*ep != ':') {
+ puts("\n** Invalid boot device, use `dev[:part]' **\n");
+ return 1;
+ }
+ part = simple_strtoul(++ep, NULL, 16);
+ }
+
+ if (argc == 4)
+ filename = argv[3];
+
+ part_length = zfs_set_blk_dev(zfs_dev_desc, part);
+ if (part_length == 0) {
+ printf("** Bad partition - %s %d:%lu **\n", argv[1], dev, part);
+ return 1;
+ }
+
+ vdev.part_length = part_length;
+
+ zfs_ls(&vdev, filename,
+ zfs_print);
+
+ return 0;
+}
+
+
+U_BOOT_CMD(zfsls, 4, 1, do_zfs_ls,
+ "list files in a directory (default /)",
+ "<interface> <dev[:part]> [directory]\n"
+ " - list files from 'dev' on 'interface' in a '/DATASET/@/$dir/'");
+
+U_BOOT_CMD(zfsload, 6, 0, do_zfs_load,
+ "load binary file from a ZFS filesystem",
+ "<interface> <dev[:part]> [addr] [filename] [bytes]\n"
+ " - load binary file '/DATASET/@/$dir/$file' from 'dev' on 'interface'\n"
+ " to address 'addr' from ZFS filesystem");