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fwu: v1: do a version check for the metadata

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Do a sanity check that the version of the FWU metadata that has been
read aligns with the version enabled in the image. This allows to
indicate an early failure as part of the FWU module initialisation.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Tested-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Sughosh Ganu
2024-09-09 16:50:17 +05:30
committed by Ilias Apalodimas
parent 5e9feeed8a
commit 36811ff827
1 changed files with 8 additions and 1 deletions
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9
lib/fwu_updates/fwu_v1.c
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@@ -146,6 +146,7 @@ int fwu_init(void)
{
int ret;
uint32_t mdata_size;
struct fwu_mdata mdata = {0};
fwu_get_mdata_size(&mdata_size);
@@ -157,10 +158,16 @@ int fwu_init(void)
* Now read the entire structure, both copies, and
* validate that the copies.
*/
ret = fwu_get_mdata(NULL);
ret = fwu_get_mdata(&mdata);
if (ret)
return ret;
if (mdata.version != 0x1) {
log_err("FWU metadata version %u. Expected value of %u\n",
mdata.version, FWU_MDATA_VERSION);
return -EINVAL;
}
fwu_data_init();
return 0;