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-rw-r--r--lib_generic/Makefile1
-rw-r--r--lib_generic/display_options.c36
-rw-r--r--lib_generic/lmb.c152
-rw-r--r--lib_generic/md5.c4
-rw-r--r--lib_generic/sha1.c4
-rw-r--r--lib_generic/sha256.c262
6 files changed, 394 insertions, 65 deletions
diff --git a/lib_generic/Makefile b/lib_generic/Makefile
index dca3a6c..4f6ce73 100644
--- a/lib_generic/Makefile
+++ b/lib_generic/Makefile
@@ -38,6 +38,7 @@ COBJS-y += lmb.o
COBJS-y += ldiv.o
COBJS-$(CONFIG_MD5) += md5.o
COBJS-y += sha1.o
+COBJS-$(CONFIG_SHA256) += sha256.o
COBJS-y += string.o
COBJS-y += vsprintf.o
COBJS-y += zlib.o
diff --git a/lib_generic/display_options.c b/lib_generic/display_options.c
index 5ddd94f..2dc2567 100644
--- a/lib_generic/display_options.c
+++ b/lib_generic/display_options.c
@@ -39,27 +39,35 @@ int display_options (void)
}
/*
- * print sizes as "xxx kB", "xxx.y kB", "xxx MB" or "xxx.y MB" as needed;
- * allow for optional trailing string (like "\n")
+ * print sizes as "xxx kB", "xxx.y kB", "xxx MB", "xxx.y MB",
+ * xxx GB, or xxx.y GB as needed; allow for optional trailing string
+ * (like "\n")
*/
-void print_size (ulong size, const char *s)
+void print_size (phys_size_t size, const char *s)
{
- ulong m, n;
- ulong d = 1 << 20; /* 1 MB */
- char c = 'M';
-
- if (size < d) { /* print in kB */
- c = 'k';
- d = 1 << 10;
+ ulong m = 0, n;
+ phys_size_t d = 1 << 30; /* 1 GB */
+ char c = 'G';
+
+ if (size < d) { /* try MB */
+ c = 'M';
+ d = 1 << 20;
+ if (size < d) { /* print in kB */
+ c = 'k';
+ d = 1 << 10;
+ }
}
n = size / d;
- m = (10 * (size - (n * d)) + (d / 2) ) / d;
+ /* If there's a remainder, deal with it */
+ if(size % d) {
+ m = (10 * (size - (n * d)) + (d / 2) ) / d;
- if (m >= 10) {
- m -= 10;
- n += 1;
+ if (m >= 10) {
+ m -= 10;
+ n += 1;
+ }
}
printf ("%2ld", n);
diff --git a/lib_generic/lmb.c b/lib_generic/lmb.c
index 3b8c805..6b46fa8 100644
--- a/lib_generic/lmb.c
+++ b/lib_generic/lmb.c
@@ -22,33 +22,34 @@ void lmb_dump_all(struct lmb *lmb)
debug("lmb_dump_all:\n");
debug(" memory.cnt = 0x%lx\n", lmb->memory.cnt);
- debug(" memory.size = 0x%08x\n", lmb->memory.size);
+ debug(" memory.size = 0x%llx\n",
+ (unsigned long long)lmb->memory.size);
for (i=0; i < lmb->memory.cnt ;i++) {
- debug(" memory.reg[0x%x].base = 0x%08x\n", i,
+ debug(" memory.reg[0x%x].base = 0x%llx\n", i,
lmb->memory.region[i].base);
- debug(" .size = 0x%08x\n",
+ debug(" .size = 0x%llx\n",
lmb->memory.region[i].size);
}
debug("\n reserved.cnt = 0x%lx\n", lmb->reserved.cnt);
- debug(" reserved.size = 0x%08x\n", lmb->reserved.size);
+ debug(" reserved.size = 0x%llx\n", lmb->reserved.size);
for (i=0; i < lmb->reserved.cnt ;i++) {
- debug(" reserved.reg[0x%x].base = 0x%08x\n", i,
+ debug(" reserved.reg[0x%x].base = 0x%llx\n", i,
lmb->reserved.region[i].base);
- debug(" .size = 0x%08x\n",
+ debug(" .size = 0x%llx\n",
lmb->reserved.region[i].size);
}
#endif /* DEBUG */
}
-static unsigned long lmb_addrs_overlap(ulong base1,
- ulong size1, ulong base2, ulong size2)
+static long lmb_addrs_overlap(phys_addr_t base1,
+ phys_size_t size1, phys_addr_t base2, phys_size_t size2)
{
return ((base1 < (base2+size2)) && (base2 < (base1+size1)));
}
-static long lmb_addrs_adjacent(ulong base1, ulong size1,
- ulong base2, ulong size2)
+static long lmb_addrs_adjacent(phys_addr_t base1, phys_size_t size1,
+ phys_addr_t base2, phys_size_t size2)
{
if (base2 == base1 + size1)
return 1;
@@ -61,10 +62,10 @@ static long lmb_addrs_adjacent(ulong base1, ulong size1,
static long lmb_regions_adjacent(struct lmb_region *rgn,
unsigned long r1, unsigned long r2)
{
- ulong base1 = rgn->region[r1].base;
- ulong size1 = rgn->region[r1].size;
- ulong base2 = rgn->region[r2].base;
- ulong size2 = rgn->region[r2].size;
+ phys_addr_t base1 = rgn->region[r1].base;
+ phys_size_t size1 = rgn->region[r1].size;
+ phys_addr_t base2 = rgn->region[r2].base;
+ phys_size_t size2 = rgn->region[r2].size;
return lmb_addrs_adjacent(base1, size1, base2, size2);
}
@@ -106,7 +107,7 @@ void lmb_init(struct lmb *lmb)
}
/* This routine called with relocation disabled. */
-static long lmb_add_region(struct lmb_region *rgn, ulong base, ulong size)
+static long lmb_add_region(struct lmb_region *rgn, phys_addr_t base, phys_size_t size)
{
unsigned long coalesced = 0;
long adjacent, i;
@@ -119,8 +120,8 @@ static long lmb_add_region(struct lmb_region *rgn, ulong base, ulong size)
/* First try and coalesce this LMB with another. */
for (i=0; i < rgn->cnt; i++) {
- ulong rgnbase = rgn->region[i].base;
- ulong rgnsize = rgn->region[i].size;
+ phys_addr_t rgnbase = rgn->region[i].base;
+ phys_size_t rgnsize = rgn->region[i].size;
if ((rgnbase == base) && (rgnsize == size))
/* Already have this region, so we're done */
@@ -173,28 +174,77 @@ static long lmb_add_region(struct lmb_region *rgn, ulong base, ulong size)
}
/* This routine may be called with relocation disabled. */
-long lmb_add(struct lmb *lmb, ulong base, ulong size)
+long lmb_add(struct lmb *lmb, phys_addr_t base, phys_size_t size)
{
struct lmb_region *_rgn = &(lmb->memory);
return lmb_add_region(_rgn, base, size);
}
-long lmb_reserve(struct lmb *lmb, ulong base, ulong size)
+long lmb_free(struct lmb *lmb, phys_addr_t base, phys_size_t size)
+{
+ struct lmb_region *rgn = &(lmb->reserved);
+ phys_addr_t rgnbegin, rgnend;
+ phys_addr_t end = base + size;
+ int i;
+
+ rgnbegin = rgnend = 0; /* supress gcc warnings */
+
+ /* Find the region where (base, size) belongs to */
+ for (i=0; i < rgn->cnt; i++) {
+ rgnbegin = rgn->region[i].base;
+ rgnend = rgnbegin + rgn->region[i].size;
+
+ if ((rgnbegin <= base) && (end <= rgnend))
+ break;
+ }
+
+ /* Didn't find the region */
+ if (i == rgn->cnt)
+ return -1;
+
+ /* Check to see if we are removing entire region */
+ if ((rgnbegin == base) && (rgnend == end)) {
+ lmb_remove_region(rgn, i);
+ return 0;
+ }
+
+ /* Check to see if region is matching at the front */
+ if (rgnbegin == base) {
+ rgn->region[i].base = end;
+ rgn->region[i].size -= size;
+ return 0;
+ }
+
+ /* Check to see if the region is matching at the end */
+ if (rgnend == end) {
+ rgn->region[i].size -= size;
+ return 0;
+ }
+
+ /*
+ * We need to split the entry - adjust the current one to the
+ * beginging of the hole and add the region after hole.
+ */
+ rgn->region[i].size = base - rgn->region[i].base;
+ return lmb_add_region(rgn, end, rgnend - end);
+}
+
+long lmb_reserve(struct lmb *lmb, phys_addr_t base, phys_size_t size)
{
struct lmb_region *_rgn = &(lmb->reserved);
return lmb_add_region(_rgn, base, size);
}
-long lmb_overlaps_region(struct lmb_region *rgn, ulong base,
- ulong size)
+long lmb_overlaps_region(struct lmb_region *rgn, phys_addr_t base,
+ phys_size_t size)
{
unsigned long i;
for (i=0; i < rgn->cnt; i++) {
- ulong rgnbase = rgn->region[i].base;
- ulong rgnsize = rgn->region[i].size;
+ phys_addr_t rgnbase = rgn->region[i].base;
+ phys_size_t rgnsize = rgn->region[i].size;
if ( lmb_addrs_overlap(base,size,rgnbase,rgnsize) ) {
break;
}
@@ -203,14 +253,14 @@ long lmb_overlaps_region(struct lmb_region *rgn, ulong base,
return (i < rgn->cnt) ? i : -1;
}
-ulong lmb_alloc(struct lmb *lmb, ulong size, ulong align)
+phys_addr_t lmb_alloc(struct lmb *lmb, phys_size_t size, ulong align)
{
return lmb_alloc_base(lmb, size, align, LMB_ALLOC_ANYWHERE);
}
-ulong lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr)
+phys_addr_t lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phys_addr_t max_addr)
{
- ulong alloc;
+ phys_addr_t alloc;
alloc = __lmb_alloc_base(lmb, size, align, max_addr);
@@ -221,25 +271,28 @@ ulong lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr)
return alloc;
}
-static ulong lmb_align_down(ulong addr, ulong size)
+static phys_addr_t lmb_align_down(phys_addr_t addr, phys_size_t size)
{
return addr & ~(size - 1);
}
-static ulong lmb_align_up(ulong addr, ulong size)
+static phys_addr_t lmb_align_up(phys_addr_t addr, ulong size)
{
return (addr + (size - 1)) & ~(size - 1);
}
-ulong __lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr)
+phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phys_addr_t max_addr)
{
long i, j;
- ulong base = 0;
+ phys_addr_t base = 0;
+ phys_addr_t res_base;
for (i = lmb->memory.cnt-1; i >= 0; i--) {
- ulong lmbbase = lmb->memory.region[i].base;
- ulong lmbsize = lmb->memory.region[i].size;
+ phys_addr_t lmbbase = lmb->memory.region[i].base;
+ phys_size_t lmbsize = lmb->memory.region[i].size;
+ if (lmbsize < size)
+ continue;
if (max_addr == LMB_ALLOC_ANYWHERE)
base = lmb_align_down(lmbbase + lmbsize - size, align);
else if (lmbbase < max_addr) {
@@ -248,30 +301,31 @@ ulong __lmb_alloc_base(struct lmb *lmb, ulong size, ulong align, ulong max_addr)
} else
continue;
- while ((lmbbase <= base) &&
- ((j = lmb_overlaps_region(&(lmb->reserved), base, size)) >= 0) )
- base = lmb_align_down(lmb->reserved.region[j].base - size,
- align);
-
- if ((base != 0) && (lmbbase <= base))
- break;
+ while (base && lmbbase <= base) {
+ j = lmb_overlaps_region(&lmb->reserved, base, size);
+ if (j < 0) {
+ /* This area isn't reserved, take it */
+ if (lmb_add_region(&lmb->reserved, base,
+ lmb_align_up(size,
+ align)) < 0)
+ return 0;
+ return base;
+ }
+ res_base = lmb->reserved.region[j].base;
+ if (res_base < size)
+ break;
+ base = lmb_align_down(res_base - size, align);
+ }
}
-
- if (i < 0)
- return 0;
-
- if (lmb_add_region(&(lmb->reserved), base, lmb_align_up(size, align)) < 0)
- return 0;
-
- return base;
+ return 0;
}
-int lmb_is_reserved(struct lmb *lmb, ulong addr)
+int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr)
{
int i;
for (i = 0; i < lmb->reserved.cnt; i++) {
- ulong upper = lmb->reserved.region[i].base +
+ phys_addr_t upper = lmb->reserved.region[i].base +
lmb->reserved.region[i].size - 1;
if ((addr >= lmb->reserved.region[i].base) && (addr <= upper))
return 1;
diff --git a/lib_generic/md5.c b/lib_generic/md5.c
index 78ef475..9150510 100644
--- a/lib_generic/md5.c
+++ b/lib_generic/md5.c
@@ -27,10 +27,12 @@
#ifndef USE_HOSTCC
#include <common.h>
+#include <linux/string.h>
+#else
+#include <string.h>
#endif /* USE_HOSTCC */
#include <watchdog.h>
#include <linux/types.h>
-#include <linux/string.h>
#include <u-boot/md5.h>
static void
diff --git a/lib_generic/sha1.c b/lib_generic/sha1.c
index c8ef4d2..da5bc16 100644
--- a/lib_generic/sha1.c
+++ b/lib_generic/sha1.c
@@ -31,9 +31,11 @@
#ifndef USE_HOSTCC
#include <common.h>
+#include <linux/string.h>
+#else
+#include <string.h>
#endif /* USE_HOSTCC */
#include <watchdog.h>
-#include <linux/string.h>
#include "sha1.h"
/*
diff --git a/lib_generic/sha256.c b/lib_generic/sha256.c
new file mode 100644
index 0000000..deb63a4
--- /dev/null
+++ b/lib_generic/sha256.c
@@ -0,0 +1,262 @@
+/*
+ * FIPS-180-2 compliant SHA-256 implementation
+ *
+ * Copyright (C) 2001-2003 Christophe Devine
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef USE_HOSTCC
+#include <common.h>
+#endif /* USE_HOSTCC */
+#include <watchdog.h>
+#include <linux/string.h>
+#include <sha256.h>
+
+/*
+ * 32-bit integer manipulation macros (big endian)
+ */
+#ifndef GET_UINT32_BE
+#define GET_UINT32_BE(n,b,i) { \
+ (n) = ( (unsigned long) (b)[(i) ] << 24 ) \
+ | ( (unsigned long) (b)[(i) + 1] << 16 ) \
+ | ( (unsigned long) (b)[(i) + 2] << 8 ) \
+ | ( (unsigned long) (b)[(i) + 3] ); \
+}
+#endif
+#ifndef PUT_UINT32_BE
+#define PUT_UINT32_BE(n,b,i) { \
+ (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
+ (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
+ (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
+ (b)[(i) + 3] = (unsigned char) ( (n) ); \
+}
+#endif
+
+void sha256_starts(sha256_context * ctx)
+{
+ ctx->total[0] = 0;
+ ctx->total[1] = 0;
+
+ 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;
+}
+
+void sha256_process(sha256_context * ctx, uint8_t data[64])
+{
+ uint32_t temp1, temp2;
+ uint32_t W[64];
+ uint32_t A, B, C, D, E, F, G, H;
+
+ GET_UINT32_BE(W[0], data, 0);
+ GET_UINT32_BE(W[1], data, 4);
+ GET_UINT32_BE(W[2], data, 8);
+ GET_UINT32_BE(W[3], data, 12);
+ GET_UINT32_BE(W[4], data, 16);
+ GET_UINT32_BE(W[5], data, 20);
+ GET_UINT32_BE(W[6], data, 24);
+ GET_UINT32_BE(W[7], data, 28);
+ GET_UINT32_BE(W[8], data, 32);
+ GET_UINT32_BE(W[9], data, 36);
+ GET_UINT32_BE(W[10], data, 40);
+ GET_UINT32_BE(W[11], data, 44);
+ GET_UINT32_BE(W[12], data, 48);
+ GET_UINT32_BE(W[13], data, 52);
+ GET_UINT32_BE(W[14], data, 56);
+ GET_UINT32_BE(W[15], data, 60);
+
+#define SHR(x,n) ((x & 0xFFFFFFFF) >> n)
+#define ROTR(x,n) (SHR(x,n) | (x << (32 - n)))
+
+#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3))
+#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10))
+
+#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22))
+#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25))
+
+#define F0(x,y,z) ((x & y) | (z & (x | y)))
+#define F1(x,y,z) (z ^ (x & (y ^ z)))
+
+#define R(t) \
+( \
+ W[t] = S1(W[t - 2]) + W[t - 7] + \
+ S0(W[t - 15]) + W[t - 16] \
+)
+
+#define P(a,b,c,d,e,f,g,h,x,K) { \
+ temp1 = h + S3(e) + F1(e,f,g) + K + x; \
+ temp2 = S2(a) + F0(a,b,c); \
+ d += temp1; h = temp1 + temp2; \
+}
+
+ 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];
+
+ P(A, B, C, D, E, F, G, H, W[0], 0x428A2F98);
+ P(H, A, B, C, D, E, F, G, W[1], 0x71374491);
+ P(G, H, A, B, C, D, E, F, W[2], 0xB5C0FBCF);
+ P(F, G, H, A, B, C, D, E, W[3], 0xE9B5DBA5);
+ P(E, F, G, H, A, B, C, D, W[4], 0x3956C25B);
+ P(D, E, F, G, H, A, B, C, W[5], 0x59F111F1);
+ P(C, D, E, F, G, H, A, B, W[6], 0x923F82A4);
+ P(B, C, D, E, F, G, H, A, W[7], 0xAB1C5ED5);
+ P(A, B, C, D, E, F, G, H, W[8], 0xD807AA98);
+ P(H, A, B, C, D, E, F, G, W[9], 0x12835B01);
+ P(G, H, A, B, C, D, E, F, W[10], 0x243185BE);
+ P(F, G, H, A, B, C, D, E, W[11], 0x550C7DC3);
+ P(E, F, G, H, A, B, C, D, W[12], 0x72BE5D74);
+ P(D, E, F, G, H, A, B, C, W[13], 0x80DEB1FE);
+ P(C, D, E, F, G, H, A, B, W[14], 0x9BDC06A7);
+ P(B, C, D, E, F, G, H, A, W[15], 0xC19BF174);
+ P(A, B, C, D, E, F, G, H, R(16), 0xE49B69C1);
+ P(H, A, B, C, D, E, F, G, R(17), 0xEFBE4786);
+ P(G, H, A, B, C, D, E, F, R(18), 0x0FC19DC6);
+ P(F, G, H, A, B, C, D, E, R(19), 0x240CA1CC);
+ P(E, F, G, H, A, B, C, D, R(20), 0x2DE92C6F);
+ P(D, E, F, G, H, A, B, C, R(21), 0x4A7484AA);
+ P(C, D, E, F, G, H, A, B, R(22), 0x5CB0A9DC);
+ P(B, C, D, E, F, G, H, A, R(23), 0x76F988DA);
+ P(A, B, C, D, E, F, G, H, R(24), 0x983E5152);
+ P(H, A, B, C, D, E, F, G, R(25), 0xA831C66D);
+ P(G, H, A, B, C, D, E, F, R(26), 0xB00327C8);
+ P(F, G, H, A, B, C, D, E, R(27), 0xBF597FC7);
+ P(E, F, G, H, A, B, C, D, R(28), 0xC6E00BF3);
+ P(D, E, F, G, H, A, B, C, R(29), 0xD5A79147);
+ P(C, D, E, F, G, H, A, B, R(30), 0x06CA6351);
+ P(B, C, D, E, F, G, H, A, R(31), 0x14292967);
+ P(A, B, C, D, E, F, G, H, R(32), 0x27B70A85);
+ P(H, A, B, C, D, E, F, G, R(33), 0x2E1B2138);
+ P(G, H, A, B, C, D, E, F, R(34), 0x4D2C6DFC);
+ P(F, G, H, A, B, C, D, E, R(35), 0x53380D13);
+ P(E, F, G, H, A, B, C, D, R(36), 0x650A7354);
+ P(D, E, F, G, H, A, B, C, R(37), 0x766A0ABB);
+ P(C, D, E, F, G, H, A, B, R(38), 0x81C2C92E);
+ P(B, C, D, E, F, G, H, A, R(39), 0x92722C85);
+ P(A, B, C, D, E, F, G, H, R(40), 0xA2BFE8A1);
+ P(H, A, B, C, D, E, F, G, R(41), 0xA81A664B);
+ P(G, H, A, B, C, D, E, F, R(42), 0xC24B8B70);
+ P(F, G, H, A, B, C, D, E, R(43), 0xC76C51A3);
+ P(E, F, G, H, A, B, C, D, R(44), 0xD192E819);
+ P(D, E, F, G, H, A, B, C, R(45), 0xD6990624);
+ P(C, D, E, F, G, H, A, B, R(46), 0xF40E3585);
+ P(B, C, D, E, F, G, H, A, R(47), 0x106AA070);
+ P(A, B, C, D, E, F, G, H, R(48), 0x19A4C116);
+ P(H, A, B, C, D, E, F, G, R(49), 0x1E376C08);
+ P(G, H, A, B, C, D, E, F, R(50), 0x2748774C);
+ P(F, G, H, A, B, C, D, E, R(51), 0x34B0BCB5);
+ P(E, F, G, H, A, B, C, D, R(52), 0x391C0CB3);
+ P(D, E, F, G, H, A, B, C, R(53), 0x4ED8AA4A);
+ P(C, D, E, F, G, H, A, B, R(54), 0x5B9CCA4F);
+ P(B, C, D, E, F, G, H, A, R(55), 0x682E6FF3);
+ P(A, B, C, D, E, F, G, H, R(56), 0x748F82EE);
+ P(H, A, B, C, D, E, F, G, R(57), 0x78A5636F);
+ P(G, H, A, B, C, D, E, F, R(58), 0x84C87814);
+ P(F, G, H, A, B, C, D, E, R(59), 0x8CC70208);
+ P(E, F, G, H, A, B, C, D, R(60), 0x90BEFFFA);
+ P(D, E, F, G, H, A, B, C, R(61), 0xA4506CEB);
+ P(C, D, E, F, G, H, A, B, R(62), 0xBEF9A3F7);
+ P(B, C, D, E, F, G, H, A, R(63), 0xC67178F2);
+
+ 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;
+}
+
+void sha256_update(sha256_context * ctx, uint8_t * input, uint32_t length)
+{
+ uint32_t left, fill;
+
+ if (!length)
+ return;
+
+ left = ctx->total[0] & 0x3F;
+ fill = 64 - left;
+
+ ctx->total[0] += length;
+ ctx->total[0] &= 0xFFFFFFFF;
+
+ if (ctx->total[0] < length)
+ ctx->total[1]++;
+
+ if (left && length >= fill) {
+ memcpy((void *) (ctx->buffer + left), (void *) input, fill);
+ sha256_process(ctx, ctx->buffer);
+ length -= fill;
+ input += fill;
+ left = 0;
+ }
+
+ while (length >= 64) {
+ sha256_process(ctx, input);
+ length -= 64;
+ input += 64;
+ }
+
+ if (length)
+ memcpy((void *) (ctx->buffer + left), (void *) input, length);
+}
+
+static uint8_t sha256_padding[64] = {
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+void sha256_finish(sha256_context * ctx, uint8_t digest[32])
+{
+ uint32_t last, padn;
+ uint32_t high, low;
+ uint8_t msglen[8];
+
+ high = ((ctx->total[0] >> 29)
+ | (ctx->total[1] << 3));
+ low = (ctx->total[0] << 3);
+
+ PUT_UINT32_BE(high, msglen, 0);
+ PUT_UINT32_BE(low, msglen, 4);
+
+ last = ctx->total[0] & 0x3F;
+ padn = (last < 56) ? (56 - last) : (120 - last);
+
+ sha256_update(ctx, sha256_padding, padn);
+ sha256_update(ctx, msglen, 8);
+
+ PUT_UINT32_BE(ctx->state[0], digest, 0);
+ PUT_UINT32_BE(ctx->state[1], digest, 4);
+ PUT_UINT32_BE(ctx->state[2], digest, 8);
+ PUT_UINT32_BE(ctx->state[3], digest, 12);
+ PUT_UINT32_BE(ctx->state[4], digest, 16);
+ PUT_UINT32_BE(ctx->state[5], digest, 20);
+ PUT_UINT32_BE(ctx->state[6], digest, 24);
+ PUT_UINT32_BE(ctx->state[7], digest, 28);
+}
generated by cgit v1.1 at 2024-11-17 22:35:13 +0000