Add ubiupdatevol command. This is to update static
and dynamic volumes.
Signed-off-by: Teresa Remmet <t.remmet@xxxxxxxxx>
---
Changes in v2:
- instead of using read_file, used a smaller
buffer and read/write in a loop
commands/ubi.c | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 81 insertions(+)
diff --git a/commands/ubi.c b/commands/ubi.c
index dc2b4b5..b8b3f38 100644
--- a/commands/ubi.c
+++ b/commands/ubi.c
@@ -7,10 +7,91 @@
#include <getopt.h>
#include <linux/mtd/mtd.h>
#include <linux/kernel.h>
+#include <linux/stat.h>
#include <linux/mtd/mtd-abi.h>
#include <mtd/ubi-user.h>
#include <mtd/ubi-media.h>
+static int do_ubiupdatevol(int argc, char *argv[])
+{
+ int fd_img, fd_vol, ret = 0;
+ uint64_t size = 0;
+ struct stat st;
+ unsigned int count;
+ void *buf;
+
+ if (argc - optind < 2)
+ return COMMAND_ERROR_USAGE;
+
+ if (stat(argv[optind+1], &st)) {
+ perror("stat image");
+ return 1;
+ }
+
+ size = st.st_size;
+
+ fd_img = open(argv[optind+1], O_RDONLY);
+ if (fd_img < 0) {
+ perror("open image");
+ return 1;
+ }
+
+ fd_vol = open(argv[optind], O_WRONLY);
+ if (fd_vol < 0) {
+ perror("open volume");
+ ret = 1;
+ goto error_img;
+ }
+
+ ret = ioctl(fd_vol, UBI_IOCVOLUP, &size);
+ if (ret) {
+ printf("failed to start update: %s\n", strerror(-ret));
+ goto error;
+ }
+
+ buf = xmalloc(RW_BUF_SIZE);
+
+ while (size) {
+
+ count = read(fd_img, buf, RW_BUF_SIZE);
+ if (count < 0) {
+ perror("read");
+ ret = 1;
+ break;
+ }
+
+ ret = write(fd_vol, buf, count);
+ if (ret < 0) {
+ perror("write");
+ break;
+ }
+
+ size -= count;
+ }
+
+ free(buf);
+
+error:
+ close(fd_vol);
+error_img:
+ close(fd_img);
+ return ret;
+}
+
+
+BAREBOX_CMD_HELP_START(ubiupdatevol)
+BAREBOX_CMD_HELP_TEXT("Update UBI volume with an image.")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(ubiupdatevol)
+ .cmd = do_ubiupdatevol,
+ BAREBOX_CMD_DESC("Update an UBI volume")
+ BAREBOX_CMD_OPTS("UBIVOL IMAGE")
+ BAREBOX_CMD_GROUP(CMD_GRP_PART)
+ BAREBOX_CMD_HELP(cmd_ubiupdatevol_help)
+BAREBOX_CMD_END
+
+
static int do_ubimkvol(int argc, char *argv[])
{
int opt;
--
1.9.1
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