Update NSS to NSS_3_15_1_BETA2.

patches/nss-rtlgenrandom.patch

-diff --git a/lib/freebl/win_rand.c b/lib/freebl/win_rand.c
---- a/lib/freebl/win_rand.c
-+++ b/lib/freebl/win_rand.c
-@@ -362,102 +362,37 @@ void RNG_FileForRNG(const char *filename
-     }
- 
-     nBytes = RNG_GetNoise(buffer, 20);  // get up to 20 bytes
-     RNG_RandomUpdate(buffer, nBytes);
- }
- 
- 
- /*
-- * CryptoAPI requires Windows NT 4.0 or Windows 95 OSR2 and later.
-- * Until we drop support for Windows 95, we need to emulate some
-- * definitions and declarations in <wincrypt.h> and look up the
-- * functions in advapi32.dll at run time.
-- */
--
--#ifndef WIN64
--typedef unsigned long HCRYPTPROV;
--#endif
--
--#define CRYPT_VERIFYCONTEXT 0xF0000000
--
--#define PROV_RSA_FULL 1
--
--typedef BOOL
--(WINAPI *CryptAcquireContextAFn)(
--    HCRYPTPROV *phProv,
--    LPCSTR pszContainer,
--    LPCSTR pszProvider,
--    DWORD dwProvType,
--    DWORD dwFlags);
--
--typedef BOOL
--(WINAPI *CryptReleaseContextFn)(
--    HCRYPTPROV hProv,
--    DWORD dwFlags);
--
--typedef BOOL
--(WINAPI *CryptGenRandomFn)(
--    HCRYPTPROV hProv,
--    DWORD dwLen,
--    BYTE *pbBuffer);
--
--/*
-  * Windows XP and Windows Server 2003 and later have RtlGenRandom,
-  * which must be looked up by the name SystemFunction036.
-  */
- typedef BOOLEAN
- (APIENTRY *RtlGenRandomFn)(
-     PVOID RandomBuffer,
-     ULONG RandomBufferLength);
- 
- size_t RNG_SystemRNG(void *dest, size_t maxLen)
- {
-     HMODULE hModule;
-     RtlGenRandomFn pRtlGenRandom;
--    CryptAcquireContextAFn pCryptAcquireContextA;
--    CryptReleaseContextFn pCryptReleaseContext;
--    CryptGenRandomFn pCryptGenRandom;
--    HCRYPTPROV hCryptProv;
-     size_t bytes = 0;
- 
-     usedWindowsPRNG = PR_FALSE;
-     hModule = LoadLibrary("advapi32.dll");
-     if (hModule == NULL) {
--       return rng_systemFromNoise(dest,maxLen);
-+       return bytes;
-     }
-     pRtlGenRandom = (RtlGenRandomFn)
-        GetProcAddress(hModule, "SystemFunction036");
--    if (pRtlGenRandom) {
--       if (pRtlGenRandom(dest, maxLen)) {
--           bytes = maxLen;
--           usedWindowsPRNG = PR_TRUE;
--       } else {
--           bytes = rng_systemFromNoise(dest,maxLen);
--       }
--       goto done;
-+    if (pRtlGenRandom && pRtlGenRandom(dest, maxLen)) {
-+       bytes = maxLen;
-+       usedWindowsPRNG = PR_TRUE;
-     }
--    pCryptAcquireContextA = (CryptAcquireContextAFn)
--       GetProcAddress(hModule, "CryptAcquireContextA");
--    pCryptReleaseContext = (CryptReleaseContextFn)
--       GetProcAddress(hModule, "CryptReleaseContext");
--    pCryptGenRandom = (CryptGenRandomFn)
--       GetProcAddress(hModule, "CryptGenRandom");
--    if (!pCryptAcquireContextA || !pCryptReleaseContext || !pCryptGenRandom) {
--       bytes = rng_systemFromNoise(dest,maxLen);
--       goto done;
--    }
--    if (pCryptAcquireContextA(&hCryptProv, NULL, NULL,
--       PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
--       if (pCryptGenRandom(hCryptProv, maxLen, dest)) {
--           bytes = maxLen;
--           usedWindowsPRNG = PR_TRUE;
--       }
--       pCryptReleaseContext(hCryptProv, 0);
--    }
--    if (bytes == 0) {
--       bytes = rng_systemFromNoise(dest,maxLen);
--    }
--done:
-     FreeLibrary(hModule);
-     return bytes;
- }
- #endif  /* is XP_WIN */