diff options
Diffstat (limited to 'boot')
-rw-r--r-- | boot/bootmeth_script.c | 2 | ||||
-rw-r--r-- | boot/image-board.c | 159 |
2 files changed, 160 insertions, 1 deletions
diff --git a/boot/bootmeth_script.c b/boot/bootmeth_script.c index 6c84721d1c..5799c89a46 100644 --- a/boot/bootmeth_script.c +++ b/boot/bootmeth_script.c @@ -101,7 +101,7 @@ static int script_boot(struct udevice *dev, struct bootflow *bflow) log_debug("mmc_bootdev: %s\n", env_get("mmc_bootdev")); addr = map_to_sysmem(bflow->buf); - ret = image_source_script(addr, NULL, NULL); + ret = cmd_source_script(addr, NULL, NULL); if (ret) return log_msg_ret("boot", ret); diff --git a/boot/image-board.c b/boot/image-board.c index 0fd63291d3..e5d71a3d54 100644 --- a/boot/image-board.c +++ b/boot/image-board.c @@ -971,3 +971,162 @@ void genimg_print_time(time_t timestamp) tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec); } + +/** + * get_default_image() - Return default property from /images + * + * Return: Pointer to value of default property (or NULL) + */ +static const char *get_default_image(const void *fit) +{ + int images_noffset; + + images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); + if (images_noffset < 0) + return NULL; + + return fdt_getprop(fit, images_noffset, FIT_DEFAULT_PROP, NULL); +} + +int image_locate_script(void *buf, int size, const char *fit_uname, + const char *confname, char **datap, uint *lenp) +{ + const struct legacy_img_hdr *hdr; + const void *fit_data; + const void *fit_hdr; + size_t fit_len; + int noffset; + int verify; + ulong len; + u32 *data; + + verify = env_get_yesno("verify"); + + switch (genimg_get_format(buf)) { + case IMAGE_FORMAT_LEGACY: + if (IS_ENABLED(CONFIG_LEGACY_IMAGE_FORMAT)) { + hdr = buf; + + if (!image_check_magic(hdr)) { + puts("Bad magic number\n"); + return 1; + } + + if (!image_check_hcrc(hdr)) { + puts("Bad header crc\n"); + return 1; + } + + if (verify) { + if (!image_check_dcrc(hdr)) { + puts("Bad data crc\n"); + return 1; + } + } + + if (!image_check_type(hdr, IH_TYPE_SCRIPT)) { + puts("Bad image type\n"); + return 1; + } + + /* get length of script */ + data = (u32 *)image_get_data(hdr); + + len = uimage_to_cpu(*data); + if (!len) { + puts("Empty Script\n"); + return 1; + } + + /* + * scripts are just multi-image files with one + * component, so seek past the zero-terminated sequence + * of image lengths to get to the actual image data + */ + while (*data++); + } + break; + case IMAGE_FORMAT_FIT: + if (IS_ENABLED(CONFIG_FIT)) { + fit_hdr = buf; + if (fit_check_format(fit_hdr, IMAGE_SIZE_INVAL)) { + puts("Bad FIT image format\n"); + return 1; + } + + if (!fit_uname) { + /* If confname is empty, use the default */ + if (confname && *confname) + noffset = fit_conf_get_node(fit_hdr, confname); + else + noffset = fit_conf_get_node(fit_hdr, NULL); + if (noffset < 0) { + if (!confname) + goto fallback; + printf("Could not find config %s\n", confname); + return 1; + } + + if (verify && fit_config_verify(fit_hdr, noffset)) + return 1; + + noffset = fit_conf_get_prop_node(fit_hdr, + noffset, + FIT_SCRIPT_PROP, + IH_PHASE_NONE); + if (noffset < 0) { + if (!confname) + goto fallback; + printf("Could not find script in %s\n", confname); + return 1; + } + } else { +fallback: + if (!fit_uname || !*fit_uname) + fit_uname = get_default_image(fit_hdr); + if (!fit_uname) { + puts("No FIT subimage unit name\n"); + return 1; + } + + /* get script component image node offset */ + noffset = fit_image_get_node(fit_hdr, fit_uname); + if (noffset < 0) { + printf("Can't find '%s' FIT subimage\n", + fit_uname); + return 1; + } + } + + if (!fit_image_check_type(fit_hdr, noffset, + IH_TYPE_SCRIPT)) { + puts("Not a image image\n"); + return 1; + } + + /* verify integrity */ + if (verify && !fit_image_verify(fit_hdr, noffset)) { + puts("Bad Data Hash\n"); + return 1; + } + + /* get script subimage data address and length */ + if (fit_image_get_data(fit_hdr, noffset, &fit_data, &fit_len)) { + puts("Could not find script subimage data\n"); + return 1; + } + + data = (u32 *)fit_data; + len = (ulong)fit_len; + } + break; + default: + puts("Wrong image format for \"source\" command\n"); + return -EPERM; + } + + *datap = (char *)data; + *lenp = len; + + return 0; +} |