tequilaOS/platform_hardware_libhardware
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Treat all tags as unsigned when comparing them

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All tags are presumed to be unsigned, but some of them have signed
representations that are negative.  This caused problems in
AuthorizationSet.Deduplicate, where TAG_APPLICATION_DATA (signed rep
of -1879047492) was being sorted before TAG_INVALID (0), which was
presumed to always be first in the list.

BUG: 30701680
Change-Id: I67047cee21fd7617248022a4674779fe80d5ddfd
This commit is contained in:
Tucker Sylvestro 2016-10-05 14:39:39 -04:00
parent 5982d8f27f
commit 28a872eb79
1 changed files with 1 additions and 1 deletions
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2
include/hardware/keymaster_defs.h
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@ -518,7 +518,7 @@ inline keymaster_key_param_t keymaster_param_date(keymaster_tag_t tag, uint64_t
#define KEYMASTER_SIMPLE_COMPARE(a, b) (a < b) ? -1 : ((a > b) ? 1 : 0)
inline int keymaster_param_compare(const keymaster_key_param_t* a, const keymaster_key_param_t* b) {
int retval = KEYMASTER_SIMPLE_COMPARE(a->tag, b->tag);
int retval = KEYMASTER_SIMPLE_COMPARE((uint32_t)a->tag, (uint32_t)b->tag);
if (retval != 0)
return retval;