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SSL: Ignore expired certificates on consoles when RTC isn't properly set

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This has been a relatively common issue experienced by users on older consoles, due to RTC not being set properly
This commit is contained in:
UnknownShadow200 2025-06-19 07:32:25 +10:00
parent 8dad7b377d
commit c8377c7797
2 changed files with 28 additions and 24 deletions
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9
src/Graphics_PS2.c
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@ -328,11 +328,10 @@ static int FindFreePalette(cc_uint8 flags) {
*---------------------------------------------------------Textures--------------------------------------------------------*
*#########################################################################################################################*/
typedef struct CCTexture_ {
cc_uint32 width, height;
cc_uint16 log2_width, log2_height;
cc_uint16 format, pal_index;
cc_uint32 pad[(64 - 16)/4];
BitmapCol pixels[]; // aligned to 64 bytes (only need 16?)
cc_uint32 width, height; // 8 bytes
cc_uint16 log2_width, log2_height; // 4 bytes
cc_uint16 format, pal_index; // 4 bytes
BitmapCol pixels[]; // must be aligned to 16 bytes
} CCTexture;
static void ConvertTexture_Palette(cc_uint8* dst, struct Bitmap* bmp, int rowWidth, BitmapCol* palette, int pal_count) {

43
src/SSL.c
View File

@ -411,10 +411,26 @@ cc_result SSL_Free(void* ctx_) {
// https://github.com/unkaktus/bearssl/blob/master/samples/client_basic.c#L283
#define SSL_ERROR_SHIFT 0xB5510000
static unsigned fake_minimal_end_chain(const br_x509_class** ctx) {
static br_x509_class cert_verifier_vtable;
static cc_bool _verifyCerts;
static unsigned cert_verifier_end_chain(const br_x509_class** ctx) {
unsigned r = br_x509_minimal_vtable.end_chain(ctx);
if (r == BR_ERR_X509_NOT_TRUSTED) r = 0;
if (r == BR_ERR_X509_EXPIRED) r = 0;
/* User selected to not care about certificate authenticity */
if (r == BR_ERR_X509_NOT_TRUSTED && !_verifyCerts) return 0;
/* It's fairly common for RTC on older consoles to not be set correctly */
#ifdef CC_BUILD_CONSOLE
if (r != BR_ERR_X509_EXPIRED) return r;
cc_uint64 cur = DateTime_CurrentUTC();
uint32_t days = (uint32_t)(cur / 86400) + 366;
/* Time earlier than August 2024 usually mean an improperly calibrated RTC */
if (days < 739464) return 0;
#endif
return r;
}
@ -427,11 +443,11 @@ typedef struct SSLContext {
cc_socket socket;
} SSLContext;
static cc_bool _verifyCerts;
void SSLBackend_Init(cc_bool verifyCerts) {
_verifyCerts = verifyCerts; // TODO support
_verifyCerts = verifyCerts;
cert_verifier_vtable = br_x509_minimal_vtable;
cert_verifier_vtable.end_chain = cert_verifier_end_chain;
}
cc_bool SSLBackend_DescribeError(cc_result res, cc_string* dst) {
@ -459,10 +475,6 @@ static void SetCurrentTime(SSLContext* ctx) {
uint32_t days = (uint32_t)(cur / 86400) + 366;
uint32_t secs = (uint32_t)(cur % 86400);
/* clamp min system time from RTC to start of August 2024 */
/* Times earlier than that usually mean an improperly calibrated RTC */
if (days < 739464) days = 739464;
br_x509_minimal_set_time(&ctx->xc, days, secs);
/* This matches bearssl's default time calculation
time_t x = time(NULL);
@ -517,20 +529,13 @@ cc_result SSL_Init(cc_socket socket, const cc_string* host_, void** out_ctx) {
br_ssl_engine_set_buffer(&ctx->sc.eng, ctx->iobuf, sizeof(ctx->iobuf), 1);
br_ssl_client_reset(&ctx->sc, host, 0);
ctx->xc.vtable = &cert_verifier_vtable;
/* Account login must be done over TLS 1.2 */
if (String_CaselessEqualsConst(host_, "www.classicube.net")) {
br_ssl_engine_set_versions(&ctx->sc.eng, BR_TLS12, BR_TLS12);
}
/* Override default certificate chain validation */
if (!_verifyCerts) {
static br_x509_class fake_minimal_vtable;
fake_minimal_vtable = br_x509_minimal_vtable;
fake_minimal_vtable.end_chain = fake_minimal_end_chain;
ctx->xc.vtable = &fake_minimal_vtable;
}
br_sslio_init(&ctx->ioc, &ctx->sc.eng,
sock_read, ctx,
sock_write, ctx);