Revert "mkeficapsule: Remove dtb related options"
This reverts commit f86caab058.
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
parent
a7e4f905d2
commit
d428e81266
@ -4,17 +4,22 @@
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* Author: AKASHI Takahiro
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*/
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#include <errno.h>
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#include <getopt.h>
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#include <malloc.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <linux/types.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "fdt_host.h"
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typedef __u8 u8;
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typedef __u16 u16;
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typedef __u32 u32;
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@ -24,6 +29,9 @@ typedef __s32 s32;
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#define aligned_u64 __aligned_u64
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#define SIGNATURE_NODENAME "signature"
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#define OVERLAY_NODENAME "__overlay__"
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#ifndef __packed
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#define __packed __attribute__((packed))
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#endif
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@ -44,6 +52,9 @@ static struct option options[] = {
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{"raw", required_argument, NULL, 'r'},
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{"index", required_argument, NULL, 'i'},
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{"instance", required_argument, NULL, 'I'},
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{"dtb", required_argument, NULL, 'D'},
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{"public key", required_argument, NULL, 'K'},
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{"overlay", no_argument, NULL, 'O'},
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{"help", no_argument, NULL, 'h'},
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{NULL, 0, NULL, 0},
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};
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@ -57,10 +68,187 @@ static void print_usage(void)
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"\t-r, --raw <raw image> new raw image file\n"
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"\t-i, --index <index> update image index\n"
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"\t-I, --instance <instance> update hardware instance\n"
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"\t-K, --public-key <key file> public key esl file\n"
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"\t-D, --dtb <dtb file> dtb file\n"
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"\t-O, --overlay the dtb file is an overlay\n"
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"\t-h, --help print a help message\n",
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tool_name);
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}
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static int fdt_add_pub_key_data(void *sptr, void *dptr, size_t key_size,
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bool overlay)
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{
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int parent;
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int ov_node;
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int frag_node;
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int ret = 0;
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if (overlay) {
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/*
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* The signature would be stored in the
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* first fragment node of the overlay
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*/
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frag_node = fdt_first_subnode(dptr, 0);
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if (frag_node == -FDT_ERR_NOTFOUND) {
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fprintf(stderr,
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"Couldn't find the fragment node: %s\n",
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fdt_strerror(frag_node));
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goto done;
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}
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ov_node = fdt_subnode_offset(dptr, frag_node, OVERLAY_NODENAME);
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if (ov_node == -FDT_ERR_NOTFOUND) {
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fprintf(stderr,
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"Couldn't find the __overlay__ node: %s\n",
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fdt_strerror(ov_node));
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goto done;
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}
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} else {
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ov_node = 0;
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}
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parent = fdt_subnode_offset(dptr, ov_node, SIGNATURE_NODENAME);
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if (parent == -FDT_ERR_NOTFOUND) {
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parent = fdt_add_subnode(dptr, ov_node, SIGNATURE_NODENAME);
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if (parent < 0) {
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ret = parent;
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if (ret != -FDT_ERR_NOSPACE) {
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fprintf(stderr,
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"Couldn't create signature node: %s\n",
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fdt_strerror(parent));
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}
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}
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}
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if (ret)
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goto done;
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/* Write the key to the FDT node */
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ret = fdt_setprop(dptr, parent, "capsule-key",
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sptr, key_size);
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done:
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if (ret)
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ret = ret == -FDT_ERR_NOSPACE ? -ENOSPC : -EIO;
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return ret;
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}
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static int add_public_key(const char *pkey_file, const char *dtb_file,
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bool overlay)
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{
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int ret;
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int srcfd = -1;
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int destfd = -1;
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void *sptr = NULL;
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void *dptr = NULL;
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off_t src_size;
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struct stat pub_key;
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struct stat dtb;
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/* Find out the size of the public key */
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srcfd = open(pkey_file, O_RDONLY);
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if (srcfd == -1) {
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fprintf(stderr, "%s: Can't open %s: %s\n",
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__func__, pkey_file, strerror(errno));
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ret = -1;
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goto err;
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}
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ret = fstat(srcfd, &pub_key);
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if (ret == -1) {
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fprintf(stderr, "%s: Can't stat %s: %s\n",
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__func__, pkey_file, strerror(errno));
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ret = -1;
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goto err;
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}
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src_size = pub_key.st_size;
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/* mmap the public key esl file */
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sptr = mmap(0, src_size, PROT_READ, MAP_SHARED, srcfd, 0);
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if (sptr == MAP_FAILED) {
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fprintf(stderr, "%s: Failed to mmap %s:%s\n",
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__func__, pkey_file, strerror(errno));
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ret = -1;
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goto err;
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}
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/* Open the dest FDT */
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destfd = open(dtb_file, O_RDWR);
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if (destfd == -1) {
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fprintf(stderr, "%s: Can't open %s: %s\n",
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__func__, dtb_file, strerror(errno));
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ret = -1;
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goto err;
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}
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ret = fstat(destfd, &dtb);
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if (ret == -1) {
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fprintf(stderr, "%s: Can't stat %s: %s\n",
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__func__, dtb_file, strerror(errno));
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goto err;
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}
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dtb.st_size += src_size + 0x30;
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if (ftruncate(destfd, dtb.st_size)) {
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fprintf(stderr, "%s: Can't expand %s: %s\n",
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__func__, dtb_file, strerror(errno));
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ret = -1;
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goto err;
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}
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errno = 0;
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/* mmap the dtb file */
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dptr = mmap(0, dtb.st_size, PROT_READ | PROT_WRITE, MAP_SHARED,
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destfd, 0);
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if (dptr == MAP_FAILED) {
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fprintf(stderr, "%s: Failed to mmap %s:%s\n",
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__func__, dtb_file, strerror(errno));
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ret = -1;
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goto err;
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}
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if (fdt_check_header(dptr)) {
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fprintf(stderr, "%s: Invalid FDT header\n", __func__);
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ret = -1;
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goto err;
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}
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ret = fdt_open_into(dptr, dptr, dtb.st_size);
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if (ret) {
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fprintf(stderr, "%s: Cannot expand FDT: %s\n",
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__func__, fdt_strerror(ret));
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ret = -1;
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goto err;
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}
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/* Copy the esl file to the expanded FDT */
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ret = fdt_add_pub_key_data(sptr, dptr, src_size, overlay);
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if (ret < 0) {
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fprintf(stderr, "%s: Unable to add public key to the FDT\n",
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__func__);
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ret = -1;
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goto err;
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}
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ret = 0;
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err:
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if (sptr)
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munmap(sptr, src_size);
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if (dptr)
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munmap(dptr, dtb.st_size);
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if (srcfd != -1)
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close(srcfd);
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if (destfd != -1)
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close(destfd);
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return ret;
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}
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static int create_fwbin(char *path, char *bin, efi_guid_t *guid,
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unsigned long index, unsigned long instance)
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{
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@ -178,16 +366,22 @@ err_1:
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int main(int argc, char **argv)
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{
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char *file;
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char *pkey_file;
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char *dtb_file;
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efi_guid_t *guid;
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unsigned long index, instance;
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int c, idx;
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int ret;
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bool overlay = false;
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file = NULL;
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pkey_file = NULL;
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dtb_file = NULL;
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guid = NULL;
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index = 0;
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instance = 0;
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for (;;) {
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c = getopt_long(argc, argv, "f:r:i:I:v:h", options, &idx);
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c = getopt_long(argc, argv, "f:r:i:I:v:D:K:Oh", options, &idx);
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if (c == -1)
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break;
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@ -214,22 +408,43 @@ int main(int argc, char **argv)
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case 'I':
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instance = strtoul(optarg, NULL, 0);
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break;
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case 'K':
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if (pkey_file) {
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printf("Public Key already specified\n");
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return -1;
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}
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pkey_file = optarg;
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break;
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case 'D':
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if (dtb_file) {
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printf("DTB file already specified\n");
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return -1;
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}
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dtb_file = optarg;
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break;
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case 'O':
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overlay = true;
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break;
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case 'h':
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print_usage();
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return 0;
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}
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}
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/* need an output file */
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if (argc != optind + 1) {
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/* need a fit image file or raw image file */
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if (!file && !pkey_file && !dtb_file) {
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print_usage();
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exit(EXIT_FAILURE);
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}
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/* need a fit image file or raw image file */
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if (!file) {
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print_usage();
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exit(EXIT_SUCCESS);
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if (pkey_file && dtb_file) {
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ret = add_public_key(pkey_file, dtb_file, overlay);
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if (ret == -1) {
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printf("Adding public key to the dtb failed\n");
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exit(EXIT_FAILURE);
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} else {
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exit(EXIT_SUCCESS);
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}
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}
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if (create_fwbin(argv[optind], file, guid, index, instance)
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