Am Freitag, dem 21.10.2022 um 18:50 +0800 schrieb Herbert Xu: > > + if (rtcr_check_fallback(areq)) > > + return crypto_ahash_import(freq, fexp); > > + > > + memcpy(hreq, hexp, sizeof(struct rtcr_ahash_req)); > > + > > + return 0; > > +} > > What happens when you import a fallback export but > rtcr_check_fallback > returns false? Hi Herbert, rtcr_ahash_export() will always generate a consistent state prior to export because it calls rtcr_check_fallback() too. So the export state will be one of the following: - fallback active flag not set + normal state data - fallback active flag set + fallback state data Thus said a fallback export will always have the fallback active flag set. So rtcr_check_fallback() cannot return false in this case. Best regards. Markus
