Mailing List Archive

The vtpm2 ABI supports packets of up to 4088 bytes by default; expose
this property though the TPM's interface so clients do not attempt to
send larger packets.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
---
stubdom/Makefile | 1 +
stubdom/vtpm-bufsize.patch | 13 +++++++++++++
2 files changed, 14 insertions(+)
create mode 100644 stubdom/vtpm-bufsize.patch

diff --git a/stubdom/Makefile b/stubdom/Makefile
index 709b71e..12f8a6f 100644
--- a/stubdom/Makefile
+++ b/stubdom/Makefile
@@ -207,6 +207,7 @@ tpm_emulator-$(XEN_TARGET_ARCH): tpm_emulator-$(TPMEMU_VERSION).tar.gz
tar xzf $<
mv tpm_emulator-$(TPMEMU_VERSION) $@
patch -d $@ -p1 < tpmemu-$(TPMEMU_VERSION).patch;
+ patch -d $@ -p1 < vtpm-bufsize.patch
mkdir $@/build
cd $@/build; $(CMAKE) .. -DCMAKE_C_COMPILER=${CC} -DCMAKE_C_FLAGS="-std=c99 -DTPM_NO_EXTERN $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) -Wno-declaration-after-statement"
touch $@
diff --git a/stubdom/vtpm-bufsize.patch b/stubdom/vtpm-bufsize.patch
new file mode 100644
index 0000000..9c9304c
--- /dev/null
+++ b/stubdom/vtpm-bufsize.patch
@@ -0,0 +1,13 @@
+diff --git a/config.h.in b/config.h.in
+index d16a997..8088a2a 100644
+--- a/config.h.in
++++ b/config.h.in
+@@ -27,7 +27,7 @@
+ #define TPM_STORAGE_NAME "${TPM_STORAGE_NAME}"
+ #define TPM_DEVICE_NAME "${TPM_DEVICE_NAME}"
+ #define TPM_LOG_FILE "${TPM_LOG_FILE}"
+-#define TPM_CMD_BUF_SIZE 4096
++#define TPM_CMD_BUF_SIZE 4088
+
+ #endif /* _CONFIG_H_ */
+
--
1.7.11.7


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