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Allocate BSSL stack for SigningVerifier (#7291)

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The BearSSL SigningVerifier was moved to the 2nd stack because some uses
required much more stack than available on the normal stack.

Add a reference to the second stack on object creation (which will
allocate it, if there is no BSSL stack already allocated), and delete
that reference on exit.

Fixes #7288
This commit is contained in:
Earle F. Philhower, III 2020-05-15 20:21:50 -07:00 committed by GitHub
parent 157ce57996
commit c5f60e31cd
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 1 deletions
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4
libraries/ESP8266WiFi/src/BearSSLHelpers.h
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@ -24,6 +24,7 @@
#define _BEARSSLHELPERS_H #define _BEARSSLHELPERS_H
#include <bearssl/bearssl.h> #include <bearssl/bearssl.h>
#include <StackThunk.h>
#include <Updater.h> #include <Updater.h>
// Internal opaque structures, not needed by user applications // Internal opaque structures, not needed by user applications
@ -157,7 +158,8 @@ class SigningVerifier : public UpdaterVerifyClass {
virtual bool verify(UpdaterHashClass *hash, const void *signature, uint32_t signatureLen) override; virtual bool verify(UpdaterHashClass *hash, const void *signature, uint32_t signatureLen) override;
public: public:
SigningVerifier(PublicKey *pubKey) { _pubKey = pubKey; } SigningVerifier(PublicKey *pubKey) { _pubKey = pubKey; stack_thunk_add_ref(); }
~SigningVerifier() { stack_thunk_del_ref(); }
private: private:
PublicKey *_pubKey; PublicKey *_pubKey;