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Make mg_random() fallible. Abort TLS on weak RNG

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Sergey Lyubka authored and Sergio R. Caprile committed 2024-09-02 11:06:10 -03:00
1 parent 44b3d60692
commit 683f65f8ac
62 files changed
+253 -111
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examples/nxp/frdm-mcxn947-make-baremetal-builtin/hal.c
+2 -1
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@@ -9,11 +9,12 @@ void SysTick_Handler(void) { // SyStick IRQ handler, triggered every 1ms
}
#if 0
void mg_random(void *buf, size_t len) { // Use on-board RNG
bool mg_random(void *buf, size_t len) { // Use on-board RNG
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
uint32_t r = rng_read();
memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
}
return true;
}
#endif
examples/nxp/frdm-mcxn947-make-freertos-builtin/hal.c
+2 -1
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@@ -9,11 +9,12 @@ void SysTick_Handler(void) { // SyStick IRQ handler, triggered every 1ms
s_ticks++;
}
void mg_random(void *buf, size_t len) { // Use on-board RNG
bool mg_random(void *buf, size_t len) { // Use on-board RNG
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
uint32_t r = rng_read();
memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
}
return true;
}
uint64_t mg_millis(void) { // Let Mongoose use our uptime function
examples/nxp/frdm-mcxn947-xpresso-baremetal-builtin/source/hal.c
+2 -1
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@@ -9,11 +9,12 @@ void SysTick_Handler(void) { // SyStick IRQ handler, triggered every 1ms
}
#if 0
void mg_random(void *buf, size_t len) { // Use on-board RNG
bool mg_random(void *buf, size_t len) { // Use on-board RNG
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
uint32_t r = rng_read();
memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
}
return true;
}
#endif
examples/nxp/frdm-mcxn947-xpresso-freertos-builtin/source/hal.c
+2 -1
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@@ -9,11 +9,12 @@ void SysTick_Handler(void) { // SyStick IRQ handler, triggered every 1ms
s_ticks++;
}
void mg_random(void *buf, size_t len) { // Use on-board RNG
bool mg_random(void *buf, size_t len) { // Use on-board RNG
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
uint32_t r = rng_read();
memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
}
return true;
}
uint64_t mg_millis(void) { // Let Mongoose use our uptime function
examples/nxp/rt1020-evk-make-baremetal-builtin/main.c
+2 -1
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@@ -16,11 +16,12 @@ uint64_t mg_millis(void) { // Let Mongoose use our uptime function
return s_ticks; // Return number of milliseconds since boot
}
void mg_random(void *buf, size_t len) { // Use on-board RNG
bool mg_random(void *buf, size_t len) { // Use on-board RNG
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
uint32_t r = rng_read();
memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
}
return true;
}
static void timer_fn(void *arg) {
gpio_toggle(LED); // Blink LED
examples/nxp/rt1020-evk-make-freertos-builtin/main.c
+2 -1
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@@ -7,11 +7,12 @@
#define BLINK_PERIOD_MS 1000 // LED blinking period in millis
void mg_random(void *buf, size_t len) { // Use on-board RNG
bool mg_random(void *buf, size_t len) { // Use on-board RNG
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
uint32_t r = rng_read();
memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
}
return true;
}
static void timer_fn(void *arg) {
examples/nxp/rt1060-evk-make-baremetal-builtin/main.c
+3 -1
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@@ -16,12 +16,14 @@ uint64_t mg_millis(void) { // Let Mongoose use our uptime function
return s_ticks; // Return number of milliseconds since boot
}
void mg_random(void *buf, size_t len) { // Use on-board RNG
bool mg_random(void *buf, size_t len) { // Use on-board RNG
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
uint32_t r = rng_read();
memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
}
return true;
}
static void timer_fn(void *arg) {
gpio_toggle(LED); // Blink LED
struct mg_tcpip_if *ifp = arg; // And show
examples/nxp/rt1060-evk-make-freertos-builtin/main.c
+2 -1
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@@ -15,11 +15,12 @@ void SysTick_Handler(void) {
xPortSysTickHandler();
}
void mg_random(void *buf, size_t len) { // Use on-board RNG
bool mg_random(void *buf, size_t len) { // Use on-board RNG
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
uint32_t r = rng_read();
memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
}
return true;
}
static void timer_fn(void *arg) {
examples/nxp/rt1060-evk-xpresso-baremetal-builtin/source/main.c
+2 -1
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@@ -33,8 +33,9 @@ uint64_t mg_millis(void) { // Let Mongoose use our uptime function
return s_ticks; // Return number of milliseconds since boot
}
void mg_random(void *buf, size_t len) { // Use on-board RNG
bool mg_random(void *buf, size_t len) { // Use on-board RNG
TRNG_GetRandomData(TRNG, buf, len); // Init by BOARD_InitBootPeripherals()
return true;
}
static void timer_fn(void *arg) {