u-boot/lib/optee/optee.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

65 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Linaro
* Bryan O'Donoghue <bryan.odonoghue@linaro.org>
*/
#include <common.h>
#include <tee/optee.h>
#define optee_hdr_err_msg \
"OPTEE verification error:" \
"\n\thdr=%p image=0x%08lx magic=0x%08x tzdram 0x%08lx-0x%08lx " \
"\n\theader lo=0x%08x hi=0x%08x size=0x%08lx arch=0x%08x" \
"\n\tuimage params 0x%08lx-0x%08lx\n"
int optee_verify_image(struct optee_header *hdr, unsigned long tzdram_start,
unsigned long tzdram_len, unsigned long image_len)
{
unsigned long tzdram_end = tzdram_start + tzdram_len;
uint32_t tee_file_size;
tee_file_size = hdr->init_size + hdr->paged_size +
sizeof(struct optee_header);
if (hdr->magic != OPTEE_MAGIC ||
hdr->version != OPTEE_VERSION ||
hdr->init_load_addr_hi > tzdram_end ||
hdr->init_load_addr_lo < tzdram_start ||
tee_file_size > tzdram_len ||
tee_file_size != image_len ||
(hdr->init_load_addr_lo + tee_file_size) > tzdram_end) {
return -EINVAL;
}
return 0;
}
int optee_verify_bootm_image(unsigned long image_addr,
unsigned long image_load_addr,
unsigned long image_len)
{
struct optee_header *hdr = (struct optee_header *)image_addr;
unsigned long tzdram_start = CONFIG_OPTEE_TZDRAM_BASE;
unsigned long tzdram_len = CONFIG_OPTEE_TZDRAM_SIZE;
int ret;
ret = optee_verify_image(hdr, tzdram_start, tzdram_len, image_len);
if (ret)
goto error;
if (image_load_addr + sizeof(*hdr) != hdr->init_load_addr_lo) {
ret = -EINVAL;
goto error;
}
return ret;
error:
printf(optee_hdr_err_msg, hdr, image_addr, hdr->magic, tzdram_start,
tzdram_start + tzdram_len, hdr->init_load_addr_lo,
hdr->init_load_addr_hi, image_len, hdr->arch, image_load_addr,
image_load_addr + image_len);
return ret;
}