swtpm/CHANGES

CHANGES - changes for swtpm

Note: Use swtpm >= 0.10.0 since it handles signing of SHA1 better.
      This version of swtpm requires OPENSSL_ENABLE_SHA1_SIGNATURES=1 env.
      variable to be set to be allowed to sign a SHA1!

version 0.9.0:
  Note: The SElinux policy for swtpm was completely redone. For systems
        with an SELinux policy the same policy (>= 40.17) as used in
        Fedora >= 40 is required due to changes in labels related to libvirt
        that made the re-development of the SELinux policy necessary.
  - swtpm:
    - Use umask() to create/truncated state file rather than fchmod()
    - Use fchmod to set mode bits provided by user
    - Replace mkstemp with g_mkstemp_full (Coverity)
    - fix typo in help message
    - cuse: Fix Coverity complaints regarding locks
    - Fix double free in error path
    - Close fd after main loop
    - Restore logging to stderr on log open failure
  - swtpm_setup:
    - Fail --pcr-banks without --tpm2
    - Fail --decryption or --allow-signing without --tpm2
    - Initialized @argv in get_swtpm_capabilities()
    - Flush spk after persisting to create room for another key
    - Refactor duplicate code into swtpm_tpm2_write_cert_nvram
    - Move persisting of certificate into tpm2_persist_certificate
    - Pass key_type to function creating filename for key
    - Add scheme parameter before curveid to createprimary_ecc
    - Rename is_ek to preserve for future extension
    - Mask-out EK and plaform certificate flags and set cert_flags
    - Move common code into new function read_certificate_file()
    - Exit with '0' upon --version rather than '1'
    - Close file descriptors passed to swtpm process on parent side
    - Make stdout unbuffered
    - Use medium duration on TSC_PhysicalPresence to avoid timeouts
    - Add poll() after write() and before read() to detect errors
  - swtpm_localca:
    - Add support for up to 20 bytes serial numbers
    - Introduce --key as more generic alias for --ek
    - Add missing NULL option to end of array
    - Make stdout unbuffered
  - swtpm_cert:
    - Add support for serial numbers up to 20 bytes long
  - swtpm_ioctl:
    - Separate return code from flags
    - Repeatedly call PTM_GET_INFO for long responses
  - selinux:
    - Re-add rule for svirt_tcg_t and user_tmp_t:sock_file (virt-install)
    - New SELinux policy that requires Fedora 40 or later
  - tests:
    - Fixed occurrences of stray '\' before '-'
    - Rearrange order of test cases to run some also as 'root'
    - Add tests for command line options and combinations of options
    - Add softhsm_setup to shellcheck'ed files and fix issues
    - Add missing 'exit 1' on unexpected file size on --reconfigure
    - Add test cases for swtpm_cert with max serial number
    - Fix spelling mistakes
    - reformat regexs for easier readability and extension
    - ibmtss2: Add patch to disable x509 test with older libtpms
    - Upgrade to ibmtss2 v2.0.1
    - Fixed several issues detected by shellcheck
  - build-sys:
    - Add support for --disable-tests to disable tests
    - Display GMP_LIBS and GMP_CFLAGS
    - Only display warning if pkg-config for gmp fails
    - Add gmp library and devel package as dependency
    - use PKG_CHECK_MODULES to check libtpms version
  - rpm:
    - Add gmp library and devel package as dependency
    - Split off SELinux files to build an selinux package
  - debian:
    - Sync AppArmor profile with what is used by Ubuntu
    - Add gmp library and devel package as dependency
    - Allow apparmor access to qemu session bus swtpm files

version 0.8.0:
  - swtpm:
    - Implement release-lock-outgoing parameter for --migration option
    - Introduce --migration option and 'incoming' parameter
    - Implement terminate parameter for ctrl channel loss
    - Add a chroot option
    - Introduce disable-auto-shutdown flag for --flags option
    - If necessary send TPM2_Shutdown() before TPMLIB_Terminate()
    - Add some more recent syscalls to seccomp profile
    - Disable OpenSSL FIPS mode to avoid libtpms failures
    - Avoid locking directory multiple times
    - Remove support for pre-v0.1 state files without header
    - Use uint64_t in tlv_data_append() to avoid integer overflows
    - Use uint64_t to avoid integer wrap-around when adding a uint32_t
    - Do not chdir(/) when using --daemon
    - Check header size indicator against expected size (CVE-2022-23645)
    - Fixes for gcc 12.2.1 -fanalyzer
  - build-sys:
    - Fix configure script to support _FORTIFY_SOURCE=3
    - Define __USE_LINUX_IOCTL_DEFS in header file (Cygwin)
  - swtpm-localca:
    - Re-implement variable resolution for swtpm-localca.conf
    - Test for available issuercert before creating CA
  - swtpm_setup:
    - Configure swtpm to log to stdout/err if needed (glib >=2.74)
  - tests:
    - Use ${WORKDIR} in config files to test env. var replacement
    - Patch IBM TSS2 test suite for OpenSSL 3.x
  - build-sys:
    - Add probing for -fstack-protector

version 0.7.0:
  - swtpm:
    - Support for linear file storage backend (file://)
    - Report 'tpm-1.2' & 'tpm-2.0' in --print-capabilities depending what
      libtpms supports
    - Add implementation of SWTPM_HMAC using OpenSSL 3.0 APIs
    - Wipe keys from stack and heap
    - Many other small changes
    - Make --daemon not racy
  - swtpm_setup:
    - Only activate SHA256 PCR bank, not SHA1 bank anymore by default
    - Support for linear file storage backend (file://)
    - Implement option --create-config-files to create config files
    - Use non-deprecated APIs to contruct RSA key (OSSL 3)
    - Report stderr as returned by external tool (swtpm-localcal)
    - Replace '+' and ',' characters in VMId's to make work with
      common name in X509 subject
    - Add support for --reconfigure flag to change active PCR banks
  - swtpm_localca:
    - Created certificates for CAs and TPM that do not expire
  - swtpm_cert:
    - Allow passing -1 for days to get a non-expiring certificate
  - test:
    - ASAN-related test changes and skipping of tests if ASAN is used
    - Fix tests using tpm2-abrmd by preventing concurrency
    - Skip chardev related tests after checking for chardev support
    - exit with error code if mktemp fails
    - OSSL 3: Make TPM 1.2 test compile; skip IBM TSS 2 test
  - build-sys:
    - Introduce --enable-sanitizers to configure
    - Remove check for pip3 that was used by python swtpm_setup
    - Allow passing of aditional CFLAGS during build

version 0.6.0:
  - swtpm:
    - Fix --print-capabilities for 'swtpm chardev'
    - Various cleanups and fixes (coverity)
    - Addressed potential symlink attack issue (CVE-2020-28407)
  - swtpm_setup:
    - Rewritten in 'C'; needs json-glib
    - Addressed potential symlink attack issue (CVE-2020-28407)
  - swtpm_ioctl:
    - Use timeouts for communicating with swtpm (Unix socket)
  - swtpm-localca:
    - Rewritten in 'C'
  - tests:
    - Use the IBM TSS2 v1.6.0's test suite
    - Store and also restore the volatile state at every step when running
      IBM TSS2 test suite
    - Various cleanup
  - build-sys:
    - Add HARDENING_CFLAGS and _LDFLAGS to all C programs

version 0.5.0:
  - swtpm:
    - Write files atomically using a temp file and then renaming
  - swtpm_setup:
    - Removed remaining 'c' wrapper program
    - Do not truncate logfile when testing write-access (regression)
    - Remove TPM state file in case error occurred
  - swtpm-localca:
    - Rewrite in python
    - Allow passing pkcs11 PIN using signingkey_password
    - Allow passing environment variables needed for pkcs11 modules using
      swtpm-localca.conf and format 'env:VARNAME=VALUE'.
  - build-sys:
    - Add python-install and python-uninstall targets
    - Add configure option to disable installation of Python module
    - Use -Wl,-z,relro and -Wl,-z,now only when linking (clang)
    - Use AC_LINK_IFELSE to check whether support for hardening flags

version 0.4.0:
  - swtpm:
    - Invoke print capabilities after choosing TPM version
    - Add some recent syscalls to seccomp blacklist
  - swtpm_cert:
    - Support --ecc-curveid option to pass curve id
  - swtpm_setup & related scripts:
    - Rewrite swtpm_setup.sh in python with TPM 1.2 not requiring tcsd
      and TPM tools anymore; new dependencies:
      - python3: pip, cryptography, setuptools
      dropped dependencies for swtpm_setup:
      - tcsd, expect, tpm-tools (some still needed for pkcs11 tests)
    - Added support for RSA 3072 keys (for libtpms-0.8.0) and moved to
      ECC NIST P384 curve; default RSA key size is still 2048
    - Added support for --rsa-keysize option
    - Extend script to create a CA using a TPM 2 for signing
  - tests:
    - Use the IBM TSS2 v1.5.0's test suite
    - Add test case for loading of an NVRAM completely full with keys
    - Have softhsm_setup use temporary directory for softhsm config & state
    - various other improvements
  - man pages:
    - Improvements
  - build-sys:
    - clang: properly test for linker flag 'now' and 'relro'
    - Gentoo: explicitly link libswtpm_libtpms with -lcrypto
    - Ownership of /var/lib/swtpm-localca is now tss:root and
      mode flags 0750.

version 0.3.0:
  - swtpm:
      - Support for applying 'TPM Startup' command during initialization
      - Use writev_full rather than writev; fixes --vtpm-proxy EIO error
      - Only accept() new client ctrl connection if we have none (bugfix)
  - swtpm_setup & related scripts:
      - Support whitespaces in filenames and paths
      - Do not fail on future PCR banks' hashes
  - swtpm_cert:
      - Fix OIDs for TPM 2 platforms data
      - Option parsing cleanup
      - Support for passing password in various forms
      - Use gnutls_x509_crt_get_subject_key_id API call for subj keyId
      - Support 64bit serial numbers read from command line
  - swtpm_ioctl:
      - Block SIGPIPE so we can get EPIPE on write()
  - swtpm_bios:
      - Block SIGPIPE so we can get EPIPE on write()
  - tests:
      - Increased timeouts and better support for running tests with
        executables run by valgrind
      - Allow running tests with choice of seccomp profile option
        (SWTPM_TEST_SECCOMP_OPT) to enable building for Ubuntu
      - Various cleanups & fixes
  - SELinux:
      - More rules added for support on F30

version 0.2.0:
  - Linux: swtpm now runs with a seccomp profile (blacklist) if compiled with
           libseccomp support
  - Added subpport for passing key and passphrase via file descriptor
  - TPM 2 commands can now be prefixed by 'the TCG header' and responses will
    have a 4-byte prefix and 4-byte suffix.
  - Added --print-capabilities command line option
  - Proper handling on EINTR on read, poll, and write

version 0.1.0:
  first public release