[Sanitizers] intercept md5 and sha* apis on FreeBSD.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D110989

compiler-rt/lib/sanitizer_common/sanitizer_platform_interceptors.h

@@ -548,10 +548,10 @@
 #define SANITIZER_INTERCEPT_SHA1 SI_NETBSD
 #define SANITIZER_INTERCEPT_MD4 SI_NETBSD
 #define SANITIZER_INTERCEPT_RMD160 SI_NETBSD
-#define SANITIZER_INTERCEPT_MD5 SI_NETBSD
+#define SANITIZER_INTERCEPT_MD5 (SI_NETBSD || SI_FREEBSD)
 #define SANITIZER_INTERCEPT_FSEEK (SI_NETBSD || SI_FREEBSD)
 #define SANITIZER_INTERCEPT_MD2 SI_NETBSD
-#define SANITIZER_INTERCEPT_SHA2 SI_NETBSD
+#define SANITIZER_INTERCEPT_SHA2 (SI_NETBSD || SI_FREEBSD)
 #define SANITIZER_INTERCEPT_CDB SI_NETBSD
 #define SANITIZER_INTERCEPT_VIS (SI_NETBSD || SI_FREEBSD)
 #define SANITIZER_INTERCEPT_POPEN SI_POSIX

compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.cpp

@@ -69,6 +69,11 @@
 #include <semaphore.h>
 #include <signal.h>
 #include <stddef.h>
+#include <md5.h>
+#include <sha224.h>
+#include <sha256.h>
+#include <sha384.h>
+#include <sha512.h>
 #include <stdio.h>
 #include <stringlist.h>
 #include <term.h>
@@ -361,6 +366,22 @@ const int si_SEGV_MAPERR = SEGV_MAPERR;
 const int si_SEGV_ACCERR = SEGV_ACCERR;
 const int unvis_valid = UNVIS_VALID;
 const int unvis_validpush = UNVIS_VALIDPUSH;
+
+const unsigned MD5_CTX_sz = sizeof(MD5_CTX);
+const unsigned MD5_return_length = MD5_DIGEST_STRING_LENGTH;
+
+#define SHA2_CONST(LEN)                                                      \
+  const unsigned SHA##LEN##_CTX_sz = sizeof(SHA##LEN##_CTX);                 \
+  const unsigned SHA##LEN##_return_length = SHA##LEN##_DIGEST_STRING_LENGTH; \
+  const unsigned SHA##LEN##_block_length = SHA##LEN##_BLOCK_LENGTH;          \
+  const unsigned SHA##LEN##_digest_length = SHA##LEN##_DIGEST_LENGTH
+
+SHA2_CONST(224);
+SHA2_CONST(256);
+SHA2_CONST(384);
+SHA2_CONST(512);
+
+#undef SHA2_CONST
 }  // namespace __sanitizer
 
 using namespace __sanitizer;

compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.h

@@ -647,6 +647,22 @@ extern unsigned IOCTL_KDSKBMODE;
 extern const int si_SEGV_MAPERR;
 extern const int si_SEGV_ACCERR;
 
+extern const unsigned MD5_CTX_sz;
+extern const unsigned MD5_return_length;
+
+#define SHA2_EXTERN(LEN)                          \
+  extern const unsigned SHA##LEN##_CTX_sz;        \
+  extern const unsigned SHA##LEN##_return_length; \
+  extern const unsigned SHA##LEN##_block_length;  \
+  extern const unsigned SHA##LEN##_digest_length
+
+SHA2_EXTERN(224);
+SHA2_EXTERN(256);
+SHA2_EXTERN(384);
+SHA2_EXTERN(512);
+
+#undef SHA2_EXTERN
+
 struct __sanitizer_cap_rights {
   u64 cr_rights[2];
 };

compiler-rt/test/sanitizer_common/TestCases/FreeBSD/md5.cpp

+// RUN: %clangxx -O0 -g %s -o %t -lmd && %run %t 2>&1 | FileCheck %s
+
+#include <sys/param.h>
+
+#include <assert.h>
+#include <md5.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void test1() {
+  MD5_CTX ctx;
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  uint8_t digest[MD5_DIGEST_LENGTH];
+  size_t entropysz = sizeof(entropy);
+  size_t digestsz = sizeof(digest);
+
+  MD5Init(&ctx);
+  MD5Update(&ctx, entropy, entropysz);
+  MD5Final(digest, &ctx);
+
+  printf("test1: '");
+  for (size_t i = 0; i < digestsz; i++)
+    printf("%02x", digest[i]);
+  printf("'\n");
+}
+
+void test2() {
+  MD5_CTX ctx;
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  char digest[MD5_DIGEST_STRING_LENGTH];
+  size_t entropysz = sizeof(entropy);
+
+  MD5Init(&ctx);
+  MD5Update(&ctx, entropy, entropysz);
+  char *p = MD5End(&ctx, digest);
+  assert(p);
+
+  printf("test2: '%s'\n", digest);
+}
+
+void test3() {
+  MD5_CTX ctx;
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  size_t entropysz = sizeof(entropy);
+
+  MD5Init(&ctx);
+  MD5Update(&ctx, entropy, entropysz);
+  char *p = MD5End(&ctx, NULL);
+  assert(strlen(p) == MD5_DIGEST_STRING_LENGTH - 1);
+
+  printf("test3: '%s'\n", p);
+
+  free(p);
+}
+
+void test4() {
+  char digest[MD5_DIGEST_STRING_LENGTH];
+
+  char *p = MD5File("/etc/fstab", digest);
+  assert(p == digest);
+
+  printf("test4: '%s'\n", p);
+}
+
+void test5() {
+  char *p = MD5File("/etc/fstab", NULL);
+  assert(strlen(p) == MD5_DIGEST_STRING_LENGTH - 1);
+
+  printf("test5: '%s'\n", p);
+
+  free(p);
+}
+
+void test6() {
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  char digest[MD5_DIGEST_STRING_LENGTH];
+  size_t entropysz = sizeof(entropy);
+
+  char *p = MD5Data(entropy, entropysz, digest);
+  assert(p == digest);
+
+  printf("test6: '%s'\n", p);
+}
+
+void test7() {
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  size_t entropysz = sizeof(entropy);
+
+  char *p = MD5Data(entropy, entropysz, NULL);
+  assert(strlen(p) == MD5_DIGEST_STRING_LENGTH - 1);
+
+  printf("test7: '%s'\n", p);
+
+  free(p);
+}
+
+int main(void) {
+  printf("MD5\n");
+
+  test1();
+  test2();
+  test3();
+  test4();
+  test5();
+  test6();
+  test7();
+
+  // CHECK: MD5
+  // CHECK: test1: '86e65b1ef4a830af347ac05ab4f0e999'
+  // CHECK: test2: '86e65b1ef4a830af347ac05ab4f0e999'
+  // CHECK: test3: '86e65b1ef4a830af347ac05ab4f0e999'
+  // CHECK: test4: '{{.*}}'
+  // CHECK: test5: '{{.*}}'
+  // CHECK: test6: '86e65b1ef4a830af347ac05ab4f0e999'
+  // CHECK: test7: '86e65b1ef4a830af347ac05ab4f0e999'
+
+  return 0;
+}

compiler-rt/test/sanitizer_common/TestCases/FreeBSD/sha2.cpp

+// RUN: %clangxx -O0 -g %s -DSHASIZE=224 -o %t -lmd && %run %t 2>&1 | FileCheck %s -check-prefix=CHECK-224
+// RUN: %clangxx -O0 -g %s -DSHASIZE=256 -o %t -lmd && %run %t 2>&1 | FileCheck %s -check-prefix=CHECK-256
+// RUN: %clangxx -O0 -g %s -DSHASIZE=384 -o %t -lmd && %run %t 2>&1 | FileCheck %s -check-prefix=CHECK-384
+// RUN: %clangxx -O0 -g %s -DSHASIZE=512 -o %t -lmd && %run %t 2>&1 | FileCheck %s -check-prefix=CHECK-512
+
+#include <sys/param.h>
+
+#include <assert.h>
+#include <sha224.h>
+#include <sha256.h>
+#include <sha384.h>
+#include <sha512.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef SHASIZE
+#error SHASIZE must be defined
+#endif
+
+#define _SHA_CTX(x) SHA##x##_CTX
+#define SHA_CTX(x) _SHA_CTX(x)
+
+#define _SHA_DIGEST_LENGTH(x) SHA##x##_DIGEST_LENGTH
+#define SHA_DIGEST_LENGTH(x) _SHA_DIGEST_LENGTH(x)
+
+#define _SHA_DIGEST_STRING_LENGTH(x) SHA##x##_DIGEST_STRING_LENGTH
+#define SHA_DIGEST_STRING_LENGTH(x) _SHA_DIGEST_STRING_LENGTH(x)
+
+#define _SHA_Init(x) SHA##x##_Init
+#define SHA_Init(x) _SHA_Init(x)
+
+#define _SHA_Update(x) SHA##x##_Update
+#define SHA_Update(x) _SHA_Update(x)
+
+#define _SHA_Final(x) SHA##x##_Final
+#define SHA_Final(x) _SHA_Final(x)
+
+#define _SHA_End(x) SHA##x##_End
+#define SHA_End(x) _SHA_End(x)
+
+#define _SHA_File(x) SHA##x##_File
+#define SHA_File(x) _SHA_File(x)
+
+#define _SHA_FileChunk(x) SHA##x##_FileChunk
+#define SHA_FileChunk(x) _SHA_FileChunk(x)
+
+#define _SHA_Data(x) SHA##x##_Data
+#define SHA_Data(x) _SHA_Data(x)
+
+void test1() {
+  SHA_CTX(SHASIZE) ctx;
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  uint8_t digest[SHA_DIGEST_LENGTH(SHASIZE)];
+  size_t entropysz = sizeof(entropy);
+  size_t digestsz = sizeof(digest);
+
+  SHA_Init(SHASIZE)(&ctx);
+  SHA_Update(SHASIZE)(&ctx, entropy, entropysz);
+  SHA_Final(SHASIZE)(digest, &ctx);
+
+  printf("test1: '");
+  for (size_t i = 0; i < digestsz; i++)
+    printf("%02x", digest[i]);
+  printf("'\n");
+}
+
+void test2() {
+  SHA_CTX(SHASIZE) ctx;
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  char digest[SHA_DIGEST_STRING_LENGTH(SHASIZE)];
+  size_t entropysz = sizeof(entropy);
+
+  SHA_Init(SHASIZE)(&ctx);
+  SHA_Update(SHASIZE)(&ctx, entropy, entropysz);
+  char *p = SHA_End(SHASIZE)(&ctx, digest);
+  assert(p == digest);
+
+  printf("test2: '%s'\n", digest);
+}
+
+void test3() {
+  SHA_CTX(SHASIZE) ctx;
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  size_t entropysz = sizeof(entropy);
+
+  SHA_Init(SHASIZE)(&ctx);
+  SHA_Update(SHASIZE)(&ctx, entropy, entropysz);
+  char *p = SHA_End(SHASIZE)(&ctx, NULL);
+  assert(strlen(p) == SHA_DIGEST_STRING_LENGTH(SHASIZE) - 1);
+
+  printf("test3: '%s'\n", p);
+
+  free(p);
+}
+
+void test4() {
+  char digest[SHA_DIGEST_STRING_LENGTH(SHASIZE)];
+
+  char *p = SHA_File(SHASIZE)("/etc/fstab", digest);
+  assert(p == digest);
+
+  printf("test4: '%s'\n", p);
+}
+
+void test5() {
+  char *p = SHA_File(SHASIZE)("/etc/fstab", NULL);
+  assert(strlen(p) == SHA_DIGEST_STRING_LENGTH(SHASIZE) - 1);
+
+  printf("test5: '%s'\n", p);
+
+  free(p);
+}
+
+void test6() {
+  char digest[SHA_DIGEST_STRING_LENGTH(SHASIZE)];
+
+  char *p = SHA_FileChunk(SHASIZE)("/etc/fstab", digest, 10, 20);
+  assert(p == digest);
+
+  printf("test6: '%s'\n", p);
+}
+
+void test7() {
+  char *p = SHA_FileChunk(SHASIZE)("/etc/fstab", NULL, 10, 20);
+  assert(strlen(p) == SHA_DIGEST_STRING_LENGTH(SHASIZE) - 1);
+
+  printf("test7: '%s'\n", p);
+
+  free(p);
+}
+
+void test8() {
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  char digest[SHA_DIGEST_STRING_LENGTH(SHASIZE)];
+  size_t entropysz = sizeof(entropy);
+
+  char *p = SHA_Data(SHASIZE)(entropy, entropysz, digest);
+  assert(p == digest);
+
+  printf("test8: '%s'\n", p);
+}
+
+void test9() {
+  uint8_t entropy[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
+  size_t entropysz = sizeof(entropy);
+
+  char *p = SHA_Data(SHASIZE)(entropy, entropysz, NULL);
+  assert(strlen(p) == SHA_DIGEST_STRING_LENGTH(SHASIZE) - 1);
+
+  printf("test9: '%s'\n", p);
+
+  free(p);
+}
+
+int main(void) {
+  printf("SHA%d\n", SHASIZE);
+
+  test1();
+  test2();
+  test3();
+  test4();
+  test5();
+  test6();
+  test7();
+  test8();
+  test9();
+
+  // CHECK-224: SHA224
+  // CHECK-224: test1: '760dfb93100a6bf5996c90f678e529dc945bb2f74a211eedcf0f3a48'
+  // CHECK-224: test2: '760dfb93100a6bf5996c90f678e529dc945bb2f74a211eedcf0f3a48'
+  // CHECK-224: test3: '760dfb93100a6bf5996c90f678e529dc945bb2f74a211eedcf0f3a48'
+  // CHECK-224: test4: '{{.*}}'
+  // CHECK-224: test5: '{{.*}}'
+  // CHECK-224: test6: '{{.*}}'
+  // CHECK-224: test7: '{{.*}}'
+  // CHECK-224: test8: '760dfb93100a6bf5996c90f678e529dc945bb2f74a211eedcf0f3a48'
+  // CHECK-224: test9: '760dfb93100a6bf5996c90f678e529dc945bb2f74a211eedcf0f3a48'
+
+  // CHECK-256: SHA256
+  // CHECK-256: test1: 'bb000ddd92a0a2a346f0b531f278af06e370f86932ccafccc892d68d350f80f8'
+  // CHECK-256: test2: 'bb000ddd92a0a2a346f0b531f278af06e370f86932ccafccc892d68d350f80f8'
+  // CHECK-256: test3: 'bb000ddd92a0a2a346f0b531f278af06e370f86932ccafccc892d68d350f80f8'
+  // CHECK-256: test4: '{{.*}}'
+  // CHECK-256: test5: '{{.*}}'
+  // CHECK-256: test6: '{{.*}}'
+  // CHECK-256: test7: '{{.*}}'
+  // CHECK-256: test8: 'bb000ddd92a0a2a346f0b531f278af06e370f86932ccafccc892d68d350f80f8'
+  // CHECK-256: test9: 'bb000ddd92a0a2a346f0b531f278af06e370f86932ccafccc892d68d350f80f8'
+
+  // CHECK-384: SHA384
+  // CHECK-384: test1: 'f450c023b168ebd56ff916ca9b1f1f0010b8c592d28205cc91fa3056f629eed108e8bac864f01ca37a3edee596739e12'
+  // CHECK-384: test2: 'f450c023b168ebd56ff916ca9b1f1f0010b8c592d28205cc91fa3056f629eed108e8bac864f01ca37a3edee596739e12'
+  // CHECK-384: test3: 'f450c023b168ebd56ff916ca9b1f1f0010b8c592d28205cc91fa3056f629eed108e8bac864f01ca37a3edee596739e12'
+  // CHECK-384: test4: '{{.*}}'
+  // CHECK-384: test5: '{{.*}}'
+  // CHECK-384: test6: '{{.*}}'
+  // CHECK-384: test7: '{{.*}}'
+  // CHECK-384: test8: 'f450c023b168ebd56ff916ca9b1f1f0010b8c592d28205cc91fa3056f629eed108e8bac864f01ca37a3edee596739e12'
+  // CHECK-384: test9: 'f450c023b168ebd56ff916ca9b1f1f0010b8c592d28205cc91fa3056f629eed108e8bac864f01ca37a3edee596739e12'
+
+  // CHECK-512: SHA512
+  // CHECK-512: test1: '0e3f68731c0e2a6a4eab5d713c9a80dc78086b5fa7d2b5ab127277958e68d1b1dee1882b083b0106cd4319de42c0c8f452871364f5baa8a6379690612c6b844e'
+  // CHECK-512: test2: '0e3f68731c0e2a6a4eab5d713c9a80dc78086b5fa7d2b5ab127277958e68d1b1dee1882b083b0106cd4319de42c0c8f452871364f5baa8a6379690612c6b844e'
+  // CHECK-512: test3: '0e3f68731c0e2a6a4eab5d713c9a80dc78086b5fa7d2b5ab127277958e68d1b1dee1882b083b0106cd4319de42c0c8f452871364f5baa8a6379690612c6b844e'
+  // CHECK-512: test4: '{{.*}}'
+  // CHECK-512: test5: '{{.*}}'
+  // CHECK-512: test6: '{{.*}}'
+  // CHECK-512: test7: '{{.*}}'
+  // CHECK-512: test8: '0e3f68731c0e2a6a4eab5d713c9a80dc78086b5fa7d2b5ab127277958e68d1b1dee1882b083b0106cd4319de42c0c8f452871364f5baa8a6379690612c6b844e'
+  // CHECK-512: test9: '0e3f68731c0e2a6a4eab5d713c9a80dc78086b5fa7d2b5ab127277958e68d1b1dee1882b083b0106cd4319de42c0c8f452871364f5baa8a6379690612c6b844e'
+
+  return 0;
+}