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-rw-r--r--testprogs/win32/midltests/midltests_tcp.c25
1 files changed, 21 insertions, 4 deletions
diff --git a/testprogs/win32/midltests/midltests_tcp.c b/testprogs/win32/midltests/midltests_tcp.c
index 41a698c3a9..306a23b377 100644
--- a/testprogs/win32/midltests/midltests_tcp.c
+++ b/testprogs/win32/midltests/midltests_tcp.c
@@ -168,6 +168,11 @@ static void change_packet(const char *ctx, BOOL ndr64,
unsigned char *buf, int len)
{
struct dcerpc_header *hdr = (struct dcerpc_header *)buf;
+ BOOL is_ndr64 = FALSE;
+ const unsigned char ndr64_buf[] = {
+ 0x33, 0x05, 0x71, 0x71, 0xBA, 0xBE, 0x37, 0x49,
+ 0x83, 0x19, 0xB5, 0xDB, 0xEF, 0x9C, 0xCC, 0x36
+ };
if (len < sizeof(struct dcerpc_header)) {
printf("%s: invalid dcerpc pdu len(%d)\n",
@@ -193,18 +198,30 @@ static void change_packet(const char *ctx, BOOL ndr64,
switch (hdr->ptype) {
case 11: /* bind */
- if (buf[24] == 3 && !ndr64) {
+ case 14: /* alter_req */
+
+ if (buf[24] >= 2) {
+ int ret;
+
+ ret = memcmp(&buf[0x60], ndr64_buf, 16);
+ if (ret == 0) {
+ is_ndr64 = TRUE;
+ }
+ }
+
+ if (is_ndr64 && !ndr64) {
buf[24+0x48] = 0xFF;
+ memset(&buf[0x60], 0xFF, 16);
printf("%s: disable NDR64\n\n", ctx);
- } else if (buf[24] < 3 && ndr64) {
+ } else if (!is_ndr64 && ndr64) {
printf("\n%s: got NDR32 downgrade\n\n", ctx);
#ifndef DONOT_FORCE_NDR64
printf("\n\tERROR!!!\n\n");
- buf[24] = 0x00;
+ memset(&buf[0x34], 0xFF, 16);
printf("You may need to run 'vcvarsall.bat amd64' before 'nmake tcp'\n");
#endif
printf("\n");
- } else if (buf[24] == 3 && ndr64) {
+ } else if (is_ndr64) {
printf("%s: got NDR64\n\n", ctx);
} else {
printf("%s: got NDR32\n\n", ctx);