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Cleanup Renesas RX default devId and improve logic for overflow check.

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This commit is contained in:
David Garske
2024-07-16 17:47:05 -07:00
parent 2b4acf5027
commit bbd8fdfc38
1 changed files with 10 additions and 8 deletions
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18
wolfcrypt/src/port/Renesas/renesas_common.c
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@ -55,8 +55,10 @@
#include <wolfssl/wolfcrypt/logging.h> #include <wolfssl/wolfcrypt/logging.h>
#include <wolfssl/wolfcrypt/port/Renesas/renesas_cmn.h> #include <wolfssl/wolfcrypt/port/Renesas/renesas_cmn.h>
#define INITIAL_DEVID 7890
uint32_t g_CAscm_Idx = (uint32_t)-1; /* index of CM table */ uint32_t g_CAscm_Idx = (uint32_t)-1; /* index of CM table */
static int gdevId = 7890; /* initial dev Id for Crypt Callback */ static int gdevId = INITIAL_DEVID; /* initial dev Id for Crypt Callback */
#ifdef WOLF_CRYPTO_CB #ifdef WOLF_CRYPTO_CB
/* store callback ctx by devId */ /* store callback ctx by devId */
@ -460,8 +462,8 @@ int Renesas_cmn_usable(const struct WOLFSSL* ssl, byte session_key_generated)
*/ */
WOLFSSL_LOCAL void *Renesas_cmn_GetCbCtxBydevId(int devId) WOLFSSL_LOCAL void *Renesas_cmn_GetCbCtxBydevId(int devId)
{ {
if (devId >= 7890 && devId <= (MAX_FSPSM_CBINDEX + 7890)) if (devId >= INITIAL_DEVID && devId <= (MAX_FSPSM_CBINDEX + INITIAL_DEVID))
return gCbCtx[devId - 7890]; return gCbCtx[devId - INITIAL_DEVID];
else else
return NULL; return NULL;
} }
@ -500,6 +502,10 @@ int wc_CryptoCb_CryptInitRenesasCmn(struct WOLFSSL* ssl, void* ctx)
} }
/* need exclusive control because of static variable */ /* need exclusive control because of static variable */
if ((cmn_hw_lock()) == 0) { if ((cmn_hw_lock()) == 0) {
/* sanity check for overflow */
if (gdevId < 0) {
gdevId = INITIAL_DEVID;
}
cbInfo->devId = gdevId++; cbInfo->devId = gdevId++;
cmn_hw_unlock(); cmn_hw_unlock();
} }
@ -521,12 +527,8 @@ int wc_CryptoCb_CryptInitRenesasCmn(struct WOLFSSL* ssl, void* ctx)
if (ssl) if (ssl)
wolfSSL_SetDevId(ssl, cbInfo->devId); wolfSSL_SetDevId(ssl, cbInfo->devId);
#endif #endif
/* sanity check for overflow */
if (gdevId < 0) {
gdevId = 7890;
}
gCbCtx[cbInfo->devId - 7890] = (void*)cbInfo; gCbCtx[cbInfo->devId - INITIAL_DEVID] = (void*)cbInfo;
return cbInfo->devId; return cbInfo->devId;
} }