travis: download, compile, and install a swTPM

Verifying the "boot_aggregate" requires reading the TPM PCRs for each of
the TPM banks.  In test environments without a physical TPM, a software
TPM may be used.

Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

.travis.yml

@@ -11,6 +11,8 @@ addons:
    - xsltproc
    - docbook-xsl
    - docbook-xml
+install:
+   - ./tests/install-swtpm.sh
 script:
    - autoreconf -i && ./configure && make -j$(nproc) && sudo make install && VERBOSE=1 make check TESTS="ima_hash.test sign_verify.test";
 

tests/install-swtpm.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -ex
+wget https://sourceforge.net/projects/ibmswtpm2/files/ibmtpm1332.tar.gz/download
+mkdir ibmtpm1332
+cd ibmtpm1332
+tar -xvzf ../download
+cd src
+make -j$(nproc)
+sudo cp tpm_server /usr/local/bin/
+cd ../..