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author | Teresa Remmet <t.remmet@phytec.de> | 2016-06-27 13:42:19 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-06-28 07:34:27 +0200 |
commit | f5205bd0922c579959353a56e8e522d40377f74d (patch) | |
tree | 13d4183f4d13d9ba3b514645298f1ca5c1d88cd8 | |
parent | c087e0804f0290e9886899e8a3cccb07c4ce088b (diff) | |
download | barebox-f5205bd0922c579959353a56e8e522d40377f74d.tar.gz barebox-f5205bd0922c579959353a56e8e522d40377f74d.tar.xz |
commands: ubi: Add ubiupdatevol command
Add ubiupdatevol command. This is to update static
and dynamic volumes.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r-- | commands/ubi.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/commands/ubi.c b/commands/ubi.c index dc2b4b502d..65d2d256a8 100644 --- a/commands/ubi.c +++ b/commands/ubi.c @@ -7,10 +7,97 @@ #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; + + if (size == FILESIZE_MAX) { + printf("%s has unknown filesize, this is not supported\n", + argv[optind + 1]); + return 1; + } + + 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; |