Hello,
this two patches add blktap2 functionality to xen-utils. I backported
http://xenbits.xen.org/xen-unstable.hg?rev/ca2738f258f8 to remove
license issues.
First patch(xen-common.patch) is for xen-utils-common, second
patch(xen-utils.patch) is for xen-utils. To apply it just enter to
'debian' dir and run `patch -p2 <patch_name`
Regards,
--
Łukasz Oleś
diff --git a/debian/scripts/Makefile b/debian/scripts/Makefile
index 3223480..120c69a 100644
--- a/debian/scripts/Makefile
+++ b/debian/scripts/Makefile
@@ -12,7 +12,8 @@ GLOBAL_SCRIPTS = \
xentrace_format \
xentrace_setmask \
xentrace_setsize \
- xm
+ xm \
+ tapdisk2
PRIVATE_SCRIPTS = \
xen-version \
diff --git a/debian/patches/series b/debian/patches/series
index 01ec1a8..fdb8ef7 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -3,6 +3,7 @@ version.patch
config-prefix.diff
tools-blktap-prefix.diff
tools-blktap2-prefix.patch
+tools-blktap2-install.patch
tools-console-prefix.diff
tools-flask-prefix.diff
tools-libfsimage-prefix.diff
@@ -18,6 +19,8 @@ tools-xentrace-prefix.diff
tools-rpath.diff
tools-blktap-rpath.diff
tools-blktap2-libs.patch
+tools-blktap2-rpath.patch
+tools-blktap2-nossl.diff
tools-console-rpath.diff
tools-libfsimage-rpath.diff
tools-libxc-rpath.diff
diff --git a/debian/patches/tools-blktap2-install.patch b/debian/patches/tools-blktap2-install.patch
new file mode 100644
index 0000000..8668e70
--- /dev/null
+++ b/debian/patches/tools-blktap2-install.patch
@@ -0,0 +1,22 @@
+--- a/tools/blktap2/vhd/Makefile
++++ b/tools/blktap2/vhd/Makefile
+@@ -46,7 +48,7 @@
+ install: all
+ $(MAKE) subdirs-install
+ $(INSTALL_DIR) -p $(DESTDIR)$(INST_DIR)
+- $(INSTALL_PROG) $(IBIN) $(DESTDIR)$(INST_DIR)
++ $(INSTALL_PROG) $(IBIN) $(DESTDIR)$(PRIVATE_BINDIR)
+
+ clean: subdirs-clean
+ rm -rf *.o *~ $(DEPS) $(IBIN)
+--- a/tools/blktap2/drivers/Makefile
++++ b/tools/blktap2/drivers/Makefile
+@@ -126,7 +126,7 @@
+
+ install: all
+ $(INSTALL_DIR) -p $(DESTDIR)$(INST_DIR)
+- $(INSTALL_PROG) $(IBIN) $(LOCK_UTIL) $(QCOW_UTIL) $(DESTDIR)$(INST_DIR)
++ $(INSTALL_PROG) $(IBIN) $(LOCK_UTIL) $(QCOW_UTIL) $(DESTDIR)$(PRIVATE_BINDIR)
+
+ clean:
+ rm -rf *.o *~ xen TAGS $(IBIN) $(LIB) $(LOCK_UTIL) $(QCOW_UTIL)
diff --git a/debian/patches/tools-blktap2-nossl.diff b/debian/patches/tools-blktap2-nossl.diff
new file mode 100644
index 0000000..2608b8d
--- /dev/null
+++ b/debian/patches/tools-blktap2-nossl.diff
@@ -0,0 +1,401 @@
+--- a/tools/blktap2/drivers/Makefile
++++ b/tools/blktap2/drivers/Makefile
+@@ -26,18 +26,6 @@
+
+ LIBS += -lrt -lz
+
+-ifeq ($(CONFIG_Linux),y)
+-ifeq ($(shell . ./check_gcrypt $(CC)),yes)
+-CFLAGS += -DUSE_GCRYPT
+-CRYPT_LIB += -lgcrypt
+-else
+-CRYPT_LIB += -lcrypto
+-$(warning === libgcrypt not installed: falling back to libcrypto ===)
+-endif
+-else
+-CRYPT_LIB += -lcrypto
+-endif
+-
+ LDFLAGS_img := $(LDFLAGS_libxenctrl) $(CRYPT_LIB) -lpthread -lz -lm
+ LDFLAGS_img += $(call LDFLAGS_RPATH,../lib)
+
+@@ -99,6 +87,7 @@
+ BLK-OBJS-y += block-log.o
+ BLK-OBJS-y += block-qcow.o
+ BLK-OBJS-y += aes.o
++BLK-OBJS-y += md5.o
+ BLK-OBJS-y += $(PORTABLE-OBJS-y)
+ BLK-OBJS-y += $(REMUS-OBJS)
+
+--- a/tools/blktap2/drivers/block-qcow.c
++++ b/tools/blktap2/drivers/block-qcow.c
+@@ -33,10 +33,10 @@
+ #include <zlib.h>
+ #include <inttypes.h>
+ #include <libaio.h>
+-#include <openssl/md5.h>
+ #include <limits.h>
+ #include "bswap.h"
+ #include "aes.h"
++#include "md5.h"
+
+ #include "tapdisk.h"
+ #include "tapdisk-driver.h"
+@@ -80,47 +80,17 @@
+
+ static int decompress_cluster(struct tdqcow_state *s, uint64_t cluster_offset);
+
+-#ifdef USE_GCRYPT
+-
+-#include <gcrypt.h>
+-
+ uint32_t gen_cksum(char *ptr, int len)
+ {
+ int i;
+ uint32_t md[4];
+
+ /* Generate checksum */
+- gcry_md_hash_buffer(GCRY_MD_MD5, md, ptr, len);
++ md5_sum((const uint8_t*)ptr, len, (uint8_t*)md);
+
+ return md[0];
+ }
+
+-#else /* use libcrypto */
+-
+-#include <openssl/md5.h>
+-
+-uint32_t gen_cksum(char *ptr, int len)
+-{
+- int i;
+- unsigned char *md;
+- uint32_t ret;
+-
+- md = malloc(MD5_DIGEST_LENGTH);
+- if(!md) return 0;
+-
+- /* Generate checksum */
+- if (MD5((unsigned char *)ptr, len, md) != md)
+- ret = 0;
+- else
+- memcpy(&ret, md, sizeof(uint32_t));
+-
+- free(md);
+- return ret;
+-}
+-
+-#endif
+-
+-
+ static void free_aio_state(struct tdqcow_state* s)
+ {
+ free(s->aio_requests);
+--- a/tools/blktap2/drivers/img2qcow.c
++++ b/tools/blktap2/drivers/img2qcow.c
+@@ -41,7 +41,6 @@
+ #include <zlib.h>
+ #include <inttypes.h>
+ #include <libaio.h>
+-#include <openssl/md5.h>
+
+ #include "bswap.h"
+ #include "aes.h"
+--- /dev/null
++++ b/tools/blktap2/drivers/md5.c
+@@ -0,0 +1,278 @@
++/* start - public domain MD5 implementation */
++/*
++ * This code implements the MD5 message-digest algorithm.
++ * The algorithm is due to Ron Rivest. This code was
++ * written by Colin Plumb in 1993, no copyright is claimed.
++ * This code is in the public domain; do with it what you wish.
++ *
++ * Equivalent code is available from RSA Data Security, Inc.
++ * This code has been tested against that, and is equivalent,
++ * except that you don't need to include two pages of legalese
++ * with every copy.
++ *
++ * To compute the message digest of a chunk of bytes, declare an
++ * MD5Context structure, pass it to MD5Init, call MD5Update as
++ * needed on buffers full of bytes, and then call MD5Final, which
++ * will fill a supplied 16-byte array with the digest.
++ */
++
++#include <string.h>
++#include <stdint.h>
++
++struct MD5Context {
++ uint32_t buf[4];
++ uint32_t bits[2];
++ uint8_t in[64];
++};
++
++static void MD5Init(struct MD5Context *context);
++static void MD5Update(struct MD5Context *context, unsigned char const *buf,
++ unsigned len);
++static void MD5Final(unsigned char digest[16], struct MD5Context *context);
++static void MD5Transform(uint32_t buf[4], uint32_t const in[16]);
++
++
++typedef struct MD5Context MD5_CTX;
++
++
++/**
++ * md5_sum - MD5 hash for a data block
++ * @addr: Pointers to the data area
++ * @len: Lengths of the data block
++ * @mac: Buffer for the hash
++ */
++void md5_sum(const uint8_t *addr, const size_t len, uint8_t *mac)
++{
++ MD5_CTX ctx;
++
++ MD5Init(&ctx);
++ MD5Update(&ctx, addr, len);
++ MD5Final(mac, &ctx);
++}
++
++
++#ifndef WORDS_BIGENDIAN
++#define byteReverse(buf, len) /* Nothing */
++#else
++/*
++ * Note: this code is harmless on little-endian machines.
++ */
++static void byteReverse(unsigned char *buf, unsigned longs)
++{
++ uint32_t t;
++ do {
++ t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
++ ((unsigned) buf[1] << 8 | buf[0]);
++ *(uint32_t *) buf = t;
++ buf += 4;
++ } while (--longs);
++}
++#endif
++
++/*
++ * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
++ * initialization constants.
++ */
++void MD5Init(struct MD5Context *ctx)
++{
++ ctx->buf[0] = 0x67452301;
++ ctx->buf[1] = 0xefcdab89;
++ ctx->buf[2] = 0x98badcfe;
++ ctx->buf[3] = 0x10325476;
++
++ ctx->bits[0] = 0;
++ ctx->bits[1] = 0;
++}
++
++/*
++ * Update context to reflect the concatenation of another buffer full
++ * of bytes.
++ */
++void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len)
++{
++ uint32_t t;
++
++ /* Update bitcount */
++
++ t = ctx->bits[0];
++ if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
++ ctx->bits[1]++; /* Carry from low to high */
++ ctx->bits[1] += len >> 29;
++
++ t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
++
++ /* Handle any leading odd-sized chunks */
++
++ if (t) {
++ unsigned char *p = (unsigned char *) ctx->in + t;
++
++ t = 64 - t;
++ if (len < t) {
++ memcpy(p, buf, len);
++ return;
++ }
++ memcpy(p, buf, t);
++ byteReverse(ctx->in, 16);
++ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
++ buf += t;
++ len -= t;
++ }
++ /* Process data in 64-byte chunks */
++
++ while (len >= 64) {
++ memcpy(ctx->in, buf, 64);
++ byteReverse(ctx->in, 16);
++ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
++ buf += 64;
++ len -= 64;
++ }
++
++ /* Handle any remaining bytes of data. */
++
++ memcpy(ctx->in, buf, len);
++}
++
++/*
++ * Final wrapup - pad to 64-byte boundary with the bit pattern
++ * 1 0* (64-bit count of bits processed, MSB-first)
++ */
++void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
++{
++ unsigned count;
++ unsigned char *p;
++
++ /* Compute number of bytes mod 64 */
++ count = (ctx->bits[0] >> 3) & 0x3F;
++
++ /* Set the first char of padding to 0x80. This is safe since there is
++ always at least one byte free */
++ p = ctx->in + count;
++ *p++ = 0x80;
++
++ /* Bytes of padding needed to make 64 bytes */
++ count = 64 - 1 - count;
++
++ /* Pad out to 56 mod 64 */
++ if (count < 8) {
++ /* Two lots of padding: Pad the first block to 64 bytes */
++ memset(p, 0, count);
++ byteReverse(ctx->in, 16);
++ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
++
++ /* Now fill the next block with 56 bytes */
++ memset(ctx->in, 0, 56);
++ } else {
++ /* Pad block to 56 bytes */
++ memset(p, 0, count - 8);
++ }
++ byteReverse(ctx->in, 14);
++
++ /* Append length in bits and transform */
++ ((uint32_t *) ctx->in)[14] = ctx->bits[0];
++ ((uint32_t *) ctx->in)[15] = ctx->bits[1];
++
++ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
++ byteReverse((unsigned char *) ctx->buf, 4);
++ memcpy(digest, ctx->buf, 16);
++ memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */
++}
++
++/* The four core functions - F1 is optimized somewhat */
++
++/* #define F1(x, y, z) (x & y | ~x & z) */
++#define F1(x, y, z) (z ^ (x & (y ^ z)))
++#define F2(x, y, z) F1(z, x, y)
++#define F3(x, y, z) (x ^ y ^ z)
++#define F4(x, y, z) (y ^ (x | ~z))
++
++/* This is the central step in the MD5 algorithm. */
++#define MD5STEP(f, w, x, y, z, data, s) \
++ ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
++
++/*
++ * The core of the MD5 algorithm, this alters an existing MD5 hash to
++ * reflect the addition of 16 longwords of new data. MD5Update blocks
++ * the data and converts bytes into longwords for this routine.
++ */
++static void MD5Transform(uint32_t buf[4], uint32_t const in[16])
++{
++ register uint32_t a, b, c, d;
++
++ a = buf[0];
++ b = buf[1];
++ c = buf[2];
++ d = buf[3];
++
++ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
++ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
++ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
++ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
++ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
++ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
++ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
++ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
++ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
++ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
++ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
++ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
++ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
++ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
++ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
++ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
++
++ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
++ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
++ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
++ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
++ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
++ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
++ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
++ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
++ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
++ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
++ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
++ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
++ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
++ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
++ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
++ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
++
++ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
++ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
++ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
++ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
++ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
++ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
++ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
++ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
++ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
++ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
++ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
++ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
++ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
++ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
++ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
++ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
++
++ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
++ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
++ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
++ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
++ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
++ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
++ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
++ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
++ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
++ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
++ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
++ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
++ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
++ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
++ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
++ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
++
++ buf[0] += a;
++ buf[1] += b;
++ buf[2] += c;
++ buf[3] += d;
++}
+--- /dev/null
++++ b/tools/blktap2/drivers/md5.h
+@@ -0,0 +1,15 @@
++#ifndef MD5_H
++#define MD5_H
++
++#include <stdint.h>
++#include <stddef.h>
++
++/**
++ * md5_sum - MD5 hash for a data block
++ * @addr: Pointers to the data area
++ * @len: Lengths of the data block
++ * @mac: Buffer for the hash
++ */
++void md5_sum(const uint8_t *addr, const size_t len, uint8_t *mac);
++
++#endif
diff --git a/debian/patches/tools-blktap2-rpath.patch b/debian/patches/tools-blktap2-rpath.patch
new file mode 100644
index 0000000..f2b628d
--- /dev/null
+++ b/debian/patches/tools-blktap2-rpath.patch
@@ -0,0 +1,22 @@
+--- a/tools/blktap2/drivers/Makefile
++++ b/tools/blktap2/drivers/Makefile
+@@ -39,6 +39,8 @@
+ endif
+
+ LDFLAGS_img := $(LDFLAGS_libxenctrl) $(CRYPT_LIB) -lpthread -lz -lm
++LDFLAGS_img += $(call LDFLAGS_RPATH,../lib)
++
+
+ LIBS += -L$(LIBVHDDIR) -lvhd
+
+--- a/tools/blktap2/vhd/Makefile
++++ b/tools/blktap2/vhd/Makefile
+@@ -27,6 +27,8 @@
+ LIBS += -luuid
+ endif
+
++LDFLAGS += $(call LDFLAGS_RPATH,../lib)
++
+ # Get gcc to generate the dependencies for us.
+ CFLAGS += -Wp,-MD,.$(@F).d
+ DEPS = .*.d
diff --git a/debian/patches/tools-disable.diff b/debian/patches/tools-disable.diff
index 82bd969..09dbde0 100644
--- a/debian/patches/tools-disable.diff
+++ b/debian/patches/tools-disable.diff
@@ -1,17 +1,14 @@
--- a/tools/Makefile
+++ b/tools/Makefile
-@@ -20,10 +20,7 @@
- SUBDIRS-$(VTPM_TOOLS) += vtpm_manager
- SUBDIRS-$(VTPM_TOOLS) += vtpm
+@@ -22,7 +22,6 @@
SUBDIRS-y += xenstat
--SUBDIRS-$(CONFIG_Linux) += libaio
+ SUBDIRS-$(CONFIG_Linux) += libaio
SUBDIRS-$(CONFIG_Linux) += memshr
-SUBDIRS-$(CONFIG_Linux) += blktap
--SUBDIRS-$(CONFIG_Linux) += blktap2
+ SUBDIRS-$(CONFIG_Linux) += blktap2
SUBDIRS-$(CONFIG_NetBSD) += libaio
SUBDIRS-$(CONFIG_NetBSD) += blktap2
- SUBDIRS-$(CONFIG_NetBSD) += xenbackendd
-@@ -31,7 +28,6 @@
+@@ -31,7 +30,6 @@
SUBDIRS-$(LIBXENAPI_BINDINGS) += libxen
SUBDIRS-$(CONFIG_Linux) += fs-back
SUBDIRS-$(CONFIG_NetBSD) += fs-back
