Fix merge conflicts and update for 4.4 kitkat
Make a copy of libmincrypt in TWRP source so we do not have to
ifdef verifier.cpp for various versions of mincrypt.
Remove reboot tool from toolbox (it was removed from 4.4 and did
not compile properly on some devices in older trees)
diff --git a/libmincrypt/sha256.c b/libmincrypt/sha256.c
new file mode 100644
index 0000000..eb6e308
--- /dev/null
+++ b/libmincrypt/sha256.c
@@ -0,0 +1,184 @@
+/* sha256.c
+**
+** Copyright 2013, The Android Open Source Project
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in the
+** documentation and/or other materials provided with the distribution.
+** * Neither the name of Google Inc. nor the names of its contributors may
+** be used to endorse or promote products derived from this software
+** without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+** EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+// Optimized for minimal code size.
+
+#include "mincrypt/sha256.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+
+#define ror(value, bits) (((value) >> (bits)) | ((value) << (32 - (bits))))
+#define shr(value, bits) ((value) >> (bits))
+
+static const uint32_t K[64] = {
+ 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+ 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+ 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+ 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+ 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+ 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+ 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+ 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+ 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+ 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+ 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+ 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+ 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+ 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+ 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+ 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 };
+
+static void SHA256_Transform(SHA256_CTX* ctx) {
+ uint32_t W[64];
+ uint32_t A, B, C, D, E, F, G, H;
+ uint8_t* p = ctx->buf;
+ int t;
+
+ for(t = 0; t < 16; ++t) {
+ uint32_t tmp = *p++ << 24;
+ tmp |= *p++ << 16;
+ tmp |= *p++ << 8;
+ tmp |= *p++;
+ W[t] = tmp;
+ }
+
+ for(; t < 64; t++) {
+ uint32_t s0 = ror(W[t-15], 7) ^ ror(W[t-15], 18) ^ shr(W[t-15], 3);
+ uint32_t s1 = ror(W[t-2], 17) ^ ror(W[t-2], 19) ^ shr(W[t-2], 10);
+ W[t] = W[t-16] + s0 + W[t-7] + s1;
+ }
+
+ A = ctx->state[0];
+ B = ctx->state[1];
+ C = ctx->state[2];
+ D = ctx->state[3];
+ E = ctx->state[4];
+ F = ctx->state[5];
+ G = ctx->state[6];
+ H = ctx->state[7];
+
+ for(t = 0; t < 64; t++) {
+ uint32_t s0 = ror(A, 2) ^ ror(A, 13) ^ ror(A, 22);
+ uint32_t maj = (A & B) ^ (A & C) ^ (B & C);
+ uint32_t t2 = s0 + maj;
+ uint32_t s1 = ror(E, 6) ^ ror(E, 11) ^ ror(E, 25);
+ uint32_t ch = (E & F) ^ ((~E) & G);
+ uint32_t t1 = H + s1 + ch + K[t] + W[t];
+
+ H = G;
+ G = F;
+ F = E;
+ E = D + t1;
+ D = C;
+ C = B;
+ B = A;
+ A = t1 + t2;
+ }
+
+ ctx->state[0] += A;
+ ctx->state[1] += B;
+ ctx->state[2] += C;
+ ctx->state[3] += D;
+ ctx->state[4] += E;
+ ctx->state[5] += F;
+ ctx->state[6] += G;
+ ctx->state[7] += H;
+}
+
+static const HASH_VTAB SHA256_VTAB = {
+ SHA256_init,
+ SHA256_update,
+ SHA256_final,
+ SHA256_hash,
+ SHA256_DIGEST_SIZE
+};
+
+void SHA256_init(SHA256_CTX* ctx) {
+ ctx->f = &SHA256_VTAB;
+ ctx->state[0] = 0x6a09e667;
+ ctx->state[1] = 0xbb67ae85;
+ ctx->state[2] = 0x3c6ef372;
+ ctx->state[3] = 0xa54ff53a;
+ ctx->state[4] = 0x510e527f;
+ ctx->state[5] = 0x9b05688c;
+ ctx->state[6] = 0x1f83d9ab;
+ ctx->state[7] = 0x5be0cd19;
+ ctx->count = 0;
+}
+
+
+void SHA256_update(SHA256_CTX* ctx, const void* data, int len) {
+ int i = (int) (ctx->count & 63);
+ const uint8_t* p = (const uint8_t*)data;
+
+ ctx->count += len;
+
+ while (len--) {
+ ctx->buf[i++] = *p++;
+ if (i == 64) {
+ SHA256_Transform(ctx);
+ i = 0;
+ }
+ }
+}
+
+
+const uint8_t* SHA256_final(SHA256_CTX* ctx) {
+ uint8_t *p = ctx->buf;
+ uint64_t cnt = ctx->count * 8;
+ int i;
+
+ SHA256_update(ctx, (uint8_t*)"\x80", 1);
+ while ((ctx->count & 63) != 56) {
+ SHA256_update(ctx, (uint8_t*)"\0", 1);
+ }
+ for (i = 0; i < 8; ++i) {
+ uint8_t tmp = (uint8_t) (cnt >> ((7 - i) * 8));
+ SHA256_update(ctx, &tmp, 1);
+ }
+
+ for (i = 0; i < 8; i++) {
+ uint32_t tmp = ctx->state[i];
+ *p++ = tmp >> 24;
+ *p++ = tmp >> 16;
+ *p++ = tmp >> 8;
+ *p++ = tmp >> 0;
+ }
+
+ return ctx->buf;
+}
+
+/* Convenience function */
+const uint8_t* SHA256_hash(const void* data, int len, uint8_t* digest) {
+ SHA256_CTX ctx;
+ SHA256_init(&ctx);
+ SHA256_update(&ctx, data, len);
+ memcpy(digest, SHA256_final(&ctx), SHA256_DIGEST_SIZE);
+ return digest;
+}