65 static u32 check_ie(struct fsl_secboot_img_priv *img)  in check_ie()  argument
67 	if (img->hdr.ie_flag & IE_FLAG_MASK)  in check_ie()
183 static u32 check_srk(struct fsl_secboot_img_priv *img)  in check_srk()  argument
188 	return !check_ie(img);  in check_srk()
192 	if (img->hdr.len_kr.srk_table_flag & SRK_FLAG)  in check_srk()
220 static u32 read_validate_srk_tbl(struct fsl_secboot_img_priv *img)  in read_validate_srk_tbl()  argument
224 	struct fsl_secboot_img_hdr *hdr = &img->hdr;  in read_validate_srk_tbl()
225 	void *esbc = (u8 *)(uintptr_t)img->ehdrloc;  in read_validate_srk_tbl()
243 	memcpy(&img->srk_tbl, esbc + hdr->srk_tbl_off, size);  in read_validate_srk_tbl()
246 		if (!CHECK_KEY_LEN(img->srk_tbl[i].key_len))  in read_validate_srk_tbl()
250 	img->key_len = img->srk_tbl[key_num - 1].key_len;  in read_validate_srk_tbl()
252 	memcpy(&img->img_key, &(img->srk_tbl[key_num - 1].pkey),  in read_validate_srk_tbl()
253 	       img->key_len);  in read_validate_srk_tbl()
260 static u32 read_validate_single_key(struct fsl_secboot_img_priv *img)  in read_validate_single_key()  argument
262 	struct fsl_secboot_img_hdr *hdr = &img->hdr;  in read_validate_single_key()
263 	void *esbc = (u8 *)(uintptr_t)img->ehdrloc;  in read_validate_single_key()
269 	memcpy(&img->img_key, esbc + hdr->pkey, hdr->key_len);  in read_validate_single_key()
271 	img->key_len = hdr->key_len;  in read_validate_single_key()
280 		struct fsl_secboot_img_priv *img)  in install_ie_tbl()  argument
284 	img->ie_addr = (uintptr_t)&glb.ie_tbl;  in install_ie_tbl()
285 	glb.ie_addr = img->ie_addr;  in install_ie_tbl()
288 static u32 read_validate_ie_tbl(struct fsl_secboot_img_priv *img)  in read_validate_ie_tbl()  argument
290 	struct fsl_secboot_img_hdr *hdr = &img->hdr;  in read_validate_ie_tbl()
294 	if (!img->ie_addr) {  in read_validate_ie_tbl()
295 		if (get_ie_info_addr(&img->ie_addr))  in read_validate_ie_tbl()
298 			install_ie_tbl(img->ie_addr, img);  in read_validate_ie_tbl()
301 	ie_info = (struct ie_key_info *)(uintptr_t)img->ie_addr;  in read_validate_ie_tbl()
318 	memcpy(&img->img_key, &(ie_info->ie_key_tbl[ie_num - 1].pkey),  in read_validate_ie_tbl()
321 	img->key_len = ie_key_len;  in read_validate_ie_tbl()
328 static inline u32 get_key_len(struct fsl_secboot_img_priv *img)  in get_key_len()  argument
330 	return img->key_len;  in get_key_len()
486 static int calc_img_key_hash(struct fsl_secboot_img_priv *img)  in calc_img_key_hash()  argument
505 	if (check_srk(img)) {  in calc_img_key_hash()
507 		      (u8 *)(uintptr_t)(img->ehdrloc + img->hdr.srk_tbl_off),  in calc_img_key_hash()
508 		      img->hdr.len_kr.num_srk * sizeof(struct srk_table), 1);  in calc_img_key_hash()
514 			img->img_key, img->key_len, 1);  in calc_img_key_hash()
524 		img->img_key_hash[i] = hash_val[i];  in calc_img_key_hash()
534 static int calc_esbchdr_esbc_hash(struct fsl_secboot_img_priv *img)  in calc_esbchdr_esbc_hash()  argument
554 		(u8 *)&img->hdr, sizeof(struct fsl_secboot_img_hdr), 0);  in calc_esbchdr_esbc_hash()
564 	if (check_srk(img)) {  in calc_esbchdr_esbc_hash()
566 		      (u8 *)(uintptr_t)(img->ehdrloc + img->hdr.srk_tbl_off),  in calc_esbchdr_esbc_hash()
567 		      img->hdr.len_kr.num_srk * sizeof(struct srk_table), 0);  in calc_esbchdr_esbc_hash()
572 	if (!key_hash && check_ie(img))  in calc_esbchdr_esbc_hash()
579 			img->img_key, img->hdr.key_len, 0);  in calc_esbchdr_esbc_hash()
590 		(u8 *)(*(img->img_addr_ptr)), img->img_size, 1);  in calc_esbchdr_esbc_hash()
608 static void construct_img_encoded_hash_second(struct fsl_secboot_img_priv *img)  in construct_img_encoded_hash_second()  argument
633 	len = (get_key_len(img) / 2) - 1;  in construct_img_encoded_hash_second()
634 	representative = img->img_encoded_hash_second;  in construct_img_encoded_hash_second()
664 static int read_validate_esbc_client_header(struct fsl_secboot_img_priv *img)  in read_validate_esbc_client_header()  argument
666 	struct fsl_secboot_img_hdr *hdr = &img->hdr;  in read_validate_esbc_client_header()
667 	void *esbc = (u8 *)(uintptr_t)img->ehdrloc;  in read_validate_esbc_client_header()
680 	if (*(img->img_addr_ptr) == 0) {  in read_validate_esbc_client_header()
682 		*(img->img_addr_ptr) = hdr->pimg64;  in read_validate_esbc_client_header()
684 		*(img->img_addr_ptr) = hdr->pimg;  in read_validate_esbc_client_header()
691 	img->img_size = hdr->img_size;  in read_validate_esbc_client_header()
695 	if (check_srk(img)) {  in read_validate_esbc_client_header()
696 		ret = read_validate_srk_tbl(img);  in read_validate_esbc_client_header()
704 	if (!key_found && check_ie(img)) {  in read_validate_esbc_client_header()
705 		ret = read_validate_ie_tbl(img);  in read_validate_esbc_client_header()
714 		ret = read_validate_single_key(img);  in read_validate_esbc_client_header()
724 	if (get_key_len(img) == 2 * hdr->sign_len) {  in read_validate_esbc_client_header()
734 	memcpy(&img->img_sign, esbc + hdr->psign, hdr->sign_len);  in read_validate_esbc_client_header()
743 	k = (u8 *)&img->img_key;  in read_validate_esbc_client_header()
749 	if ((k[get_key_len(img) / 2 - 1] & 0x1) == 0)  in read_validate_esbc_client_header()
753 	s = (u8 *)&img->img_sign;  in read_validate_esbc_client_header()
783 static int calculate_cmp_img_sig(struct fsl_secboot_img_priv *img)  in calculate_cmp_img_sig()  argument
791 	ret = calc_esbchdr_esbc_hash(img);  in calculate_cmp_img_sig()
796 	construct_img_encoded_hash_second(img);  in calculate_cmp_img_sig()
800 	key_len = get_key_len(img) / 2;  in calculate_cmp_img_sig()
801 	prop.modulus = img->img_key;  in calculate_cmp_img_sig()
802 	prop.public_exponent = img->img_key + key_len;  in calculate_cmp_img_sig()
812 	ret = rsa_mod_exp(mod_exp_dev, img->img_sign, img->hdr.sign_len,  in calculate_cmp_img_sig()
813 			  &prop, img->img_encoded_hash);  in calculate_cmp_img_sig()
822 	ret = memcmp(&img->img_encoded_hash_second, &img->img_encoded_hash,  in calculate_cmp_img_sig()
823 		img->hdr.sign_len);  in calculate_cmp_img_sig()
830 /* Function to initialize img priv and global data structure
836 	struct fsl_secboot_img_priv *img = *img_ptr;  in secboot_init()  local
838 	if (!img)  in secboot_init()
840 	memset(img, 0, sizeof(struct fsl_secboot_img_priv));  in secboot_init()
844 		img->ie_addr = glb.ie_addr;  in secboot_init()
865 	struct fsl_secboot_img_priv *img;  in fsl_secboot_validate()  local
903 	ret = secboot_init(&img);  in fsl_secboot_validate()
908 	hdr = &img->hdr;  in fsl_secboot_validate()
909 	img->ehdrloc = haddr;  in fsl_secboot_validate()
910 	img->img_addr_ptr = img_addr_ptr;  in fsl_secboot_validate()
911 	esbc = (u8 *)img->ehdrloc;  in fsl_secboot_validate()
916 	ret = read_validate_esbc_client_header(img);  in fsl_secboot_validate()
931 	ret = calc_img_key_hash(img);  in fsl_secboot_validate()
939 		ret = memcmp(&hash, &img->img_key_hash, SHA256_BYTES);  in fsl_secboot_validate()
941 		ret = memcmp(srk_hash, img->img_key_hash, SHA256_BYTES);  in fsl_secboot_validate()
944 	if (!hash_cmd && check_ie(img))  in fsl_secboot_validate()
953 	ret = calculate_cmp_img_sig(img);  in fsl_secboot_validate()
960 	/* Free Img as it was malloc'ed*/  in fsl_secboot_validate()
961 	free(img);  in fsl_secboot_validate()