CHANGELOG.md

Changelog

avs_commons 5.4.7 (Nov 12th, 2024)

Improvements

• Improved the coverage script and switched to lcov.

Bugfixes

• Fixed command passed to popen() call in MbedTLS + TLS 1.3 tests to make it work on macOS

avs_commons 5.4.6 (Oct 24th, 2024)

Improvements

• devconfig script now additionally sets -Werror=implicit-function-declaration flag to ensure that missing function declarations are treated as error

Bugfixes

• Fixed default implementation of avs_condvar_create for pthreads in case pthread_condattr APIs are not available
• Fixed compilation warnings when building against Mbed TLS 3.6
• Added missing call to psa_crypto_init() if MBEDTLS_USE_PSA_CRYPTO is not defined, but MBEDTLS_PSA_CRYPTO_C is.
• Fixed DANE implementation to be compatible with TLS 1.3 implementation in Mbed TLS which ignores the authmode setting.
• Added a workaround to mimic MBEDTLS_SSL_VERIFY_NONE authmode when using TLS 1.3.
• Fixed a corner case with uninitialized variable in mbedtls_socket layer.

avs_commons 5.4.5 (May 28th, 2024)

Improvements

• Added support for Mbed TLS 3.6

avs_commons 5.4.4 (April 12th, 2024)

Features

• Added custom base64 encoding without null terminating
• Added API to modify extended attributes in Certificate Signing Request

avs_commons 5.4.3 (February 16th, 2024)

Improvements

• Optimized "Out of memory" logs in favor of a smaller flash memory footprint

Bugfixes

• Fixed "unused assignment" warning generated by static analyzers when compiling against Mbed TLS 3.x

avs_commons 5.4.2 (November 21st, 2023)

Features

• Refactored the PRNG integration in the Mbed TLS backend so that the PSA RNG API can be used if CTR-DRBG and/or entropy APIs are disabled

Bugfixes

• Additional validation in avs_persistence_string() to avoid restoring a string with superfluous data after the nullbyte

avs_commons 5.4.1 (October 9th, 2023)

Bugfixes

• Fixes in CMake scripts when searching for mbed TLS in the case when MBEDTLS_ROOT_DIR, CMAKE_FIND_ROOT_PATH and CMAKE_FIND_ROOT_PATH_MODE_* are all specified explicitly
• Fixes in some #ifdef directives that caused compilation failures when AVS_COMMONS_WITH_AVS_CRYPTO_PSK was disabled

avs_commons 5.4.0 (September 7th, 2023)

BREAKING CHANGES

• Default POSIX socket implementation now doesn't include errno.h if definition of EDOM (available by e.g. including lwIP's lwip/errno.h) is included in AVS_COMMONS_POSIX_COMPAT_HEADER.

Improvements

• Made MD5 length define publicly visible (for easier avs_stream_md5 usage)
• Made (D)TLS session resumption and persistence possible on Mbed TLS 3.0+ even when MBEDTLS_SSL_SRV_C is disabled

Bugfixes

• Added missing null guards in (D)TLS socket implementations so that all methods are now safe to call in any state
• When using lwIP, default POSIX socket implementation and appropriate compat header now include lwIP's lwip/errno.h instead of system errno.h

avs_commons 5.3.1 (June 12th, 2023)

Features

• Added AVS_NET_SOCKET_OPT_PREFERRED_ADDR_FAMILY and AVS_NET_SOCKET_OPT_FORCED_ADDR_FAMILY options that allow setting address family configuration of an already created socket
• Automatically upgrading IPv4 sockets to IPv6 when connecting is now possible
• Added AVS_UNIT_MOCK_DECLARE() and AVS_UNIT_MOCK_DEFINE() to facilitate declaring mocked functions with external linkage

Improvements

• Slightly changed the semantics of avs_sched_run(), to fix erroneous behavior on platforms with low-resolution system clocks

avs_commons 5.3.0 (March 10th, 2023)

Features

• Added the AVS_COMMONS_NET_POSIX_AVS_SOCKET_WITHOUT_IN6_V4MAPPED_SUPPORT configuration option that improves dual-stack IPv4+IPv6 connectivity on platforms that do not support IPv4-mapped IPv6 addresses (::ffff:0:0/96)

Improvements

• Trivial fixes to silence warnings on certain commercial compilers (contributed by Flonidan A/S)
• Removed usages of most deprecated Mbed TLS and OpenSSL APIs

avs_commons 5.2.0 (February 20th, 2023)

BREAKING CHANGES

• Removed avs_unit_memstream that is now unused

Features

• Added persistence of DTLS context state related to the Connection ID extension and the related AVS_NET_SOCKET_OPT_CONNECTION_ID_RESUMED option
• Added option to set avs_log logging level in compile time. If AVS_COMMONS_WITH_EXTERNAL_LOG_LEVELS_HEADER is specified, inactive logs will be removed during compile time
• Added option to disable log level check in runtime, if active the macros avs_log_set_level and avs_log_set_default_level are not available

Improvements

• Avoid calling avs_net_socket_send() with zero-length buffers when using avs_stream_netbuf

Bugfixes

• Fixed out_message_finished and out_bytes_read not being set when read is called with a NULL buffer in avs_stream_inbuf

avs_commons 5.1.3 (December 7th, 2022)

Improvements

• Added support for setting MTU in the Mbed TLS backend
• Added the "alignfix" alternate memory allocator

Bugfixes

• Fixed tls session persistence flag
• Removed calling mbedtls_ssl_ciphersuite_uses_psk() if PSK is disabled in Mbed TLS

avs_commons 5.1.2 (August 24th, 2022)

Bugfixes

• Fixed definition and usages of avs_realloc()

avs_commons 5.1.1 (July 22nd, 2022)

Improvements

• Improved compatibility with older versions of Mbed TLS

avs_commons 5.1.0 (July 6th, 2022)

Features

• Support for TLS 1.3 using the OpenSSL and Mbed TLS backends, as well as for DTLS 1.3 using the Mbed TLS backend (if built against a TLS library version that supports it)
• Added new AVS_SORTED_SET API which mirrors AVS_RBTREE, but can be implemented either using AVS_RBTREE (better complexity, but bigger code) or AVS_LIST (slower, but smaller code)
• DTLS handshake timeouts can now be changed for existing sockets using the avs_net_socket_set_opt() function

Bugfixes

• Fixed compilation of Mbed TLS-based variant of avs_net if MBEDTLS_PK_WRITE_C is disabled

avs_commons 5.0.0 (May 18th, 2022)

BREAKING CHANGES

• Removed the old avs_net_psk_info_t API and renamed avs_net_generic_psk_info_t to avs_net_psk_info_t

Features

• New AVS_NET_SOCKET_HAS_BUFFERED_DATA socket option that allows for checking internal socket buffer state in a more robust way
• Added support for OpenSSL 3

Bugfixes

• Fixed some CMake warnings

avs_commons 4.10.0 (April 8th, 2022)

BREAKING CHANGES

• New API for PSK security credentials, unified with avs_crypto_security_info_union_t

Features

• Added support for Mbed TLS 3.1
• Added support for using PSK security credentials through hardware security engines
• Added API for uploading software-based private keys onto hardware security engines

Improvements

• Added a AVS_COMMONS_WITHOUT_TLS macro public for easier checking of (D)TLS support
• Stopped using LOG macro in expression context for better compatibility with external logger implementations
• Lowered log level of the "scheduler already shut down" as that is not really a fatal condition

Bugfixes

• Failure to load DANE credentials if DANE is enforced is now properly a fatal error in OpenSSL backend
• Fixed support for PEM-formatted certificates and CRLs in Mbed TLS backend

avs_commons 4.9.1 (November 29th, 2021)

Improvements

• optimized avs_match_token() function (#308),
• optimized avs_url_percent_decode() function (#306),
• use the default PRNG when custom TLS is used.

Bugfixes

• prevent using unchecked __GNUC__ macro.

avs_commons 4.9.0 (October 1st, 2021)

Features

• Support for completely replacing the avs_log implementation
• Better support for integrating with custom TLS compatibility layers
• (commercial version only) Support for PSA API for hardware-based security

Improvements

• Added support for Mbed TLS 3.0

Bugfixes

• Fixed compatibility some platforms, including ESP-IDF and MinGW (winpthreads)

avs_commons 4.8.1 (July 19th, 2021)

Features

• Added support for MBEDTLS_SSL_KEEP_PEER_CERTIFICATE flag in Mbed TLS 2.17

Bugfixes

• Fixed call to avs_hexlify() in connection ID handling in avs_mbedtls_socket

avs_commons 4.8.0 (June 29th, 2021)

Features

• Added extended log handler API, it allows creation of log handlers with custom message format including module, file and line number parameters.

Improvements

• Handle case where PKCS#11 implementation uses null-terminated strings against the specification. (commercial version only)

avs_commons 4.7.2 (June 2nd, 2021)

Improvements

• When using custom ciphersuite settings, they are now properly filtered according to the security mode in use (PSK vs. certificates) in all backends
• Made avs_compat_pthread preferred over avs_compat_atomic_spinlock when both are enabled

avs_commons 4.7.1 (April 29th, 2021)

Improvements

• Added suppressions for memory leaks originating from OpenSSL and libp11 when running under LeakSanitizer (relevant mostly for commercial version)
• (commercial version only) Fixed a compilation warning in PKCS#11 integration

Bugfixes

• Added missing #ifdefs to avs_stream_common.c, that prevented compilation when avs_stream component was disabled (contributed by https://github.com/anuar2k)
• Fixed implementations of avs_stream_read_t that did not handle NULL output pointers properly - this fixes some potential crashes in the HTTP client

avs_commons 4.7.0 (March 19th, 2021)

Features

• Rewritten PKCS#11-based hardware security support; the new version is included only in commercial version, includes support for both OpenSSL and Mbed TLS backends, and uses ECDSA for key generation in both backends (the OpenSSL version previously generated RSA keys)

Improvements

• Made some linting checks (visibility, header and code duplication verification) more generic so that the code can be reused by other projects

Bugfixes

• Fixed a problem with compiling the Mbed TLS backend when AVS_COMMONS_WITH_AVS_CRYPTO_PKI or WITH_DANE_SUPPORT is disabled
• Fixed logic of detecting cryptographic file formats, which prevented PEM files with comments from being loaded
• Added some missing NULL checks in atomic spinlock-based threading backend and Mbed TLS crypto backend

avs_commons 4.6.0 (January 11th, 2021)

BREAKING CHANGES

• Refactored avs_net_local_address_for_target_host() in a way that may be breaking for users who maintain their own socket integration code

Improvements

• Additional tests for the avs_stream module

Bugfixes

• Fixed erroneous bounds check in _avs_crypto_get_data_source_definition()
• Made removal of PKCS#11 objects more resilient to errors (relevant mostly for commercial Anjay users)
• Fixed CMake code for importing the libp11 library (relevant mostly for commercial Anjay users)

avs_commons 4.5.0 (November 23rd, 2020)

BREAKING CHANGES

• Moved URL handling routines to a separate avs_url component
• Implementation of avs_net_validate_ip_address() is no longer required when writing custom socket integration layer
• Hardware Security Module support has been reorganized to allow easier implementation of third-party engines

Features

• Support for private key generation and removal on Hardware Security Modules via PKCS#11 engine
• Support for storing and removing certificates stored on Hardware Security Modules via PKCS#11 engine
• Support for certificate chain reconstruction based on trust store when performing (D)TLS handshake
• New AVS_DOUBLE_AS_STRING() API and AVS_COMMONS_WITHOUT_FLOAT_FORMAT_SPECIFIERS configuration options, making it possible to stringify floating point numbers on libc implementations that don't support printf("%g")

Improvements

• Simplified URL hostname validation - it is now somewhat more lenient, but no longer depends on avs_net_validate_ip_address()
• Removed internal usage of avs_net_validate_ip_address() and reimplemented it as an inline function that wraps avs_net_addrinfo_resolve_ex()
• Better CMake-level dependencies and compile-time error handling for compile-time configuration options
• PEM-formatted security objects can now be loaded from buffer in the Mbed TLS backend

Bugfixes

• Fixed conditional compilation clauses for avs_crypto global initialization
• Additional NULL checks when loading security information
• Removed duplicate file names that could prevent building with some embedded IDEs

avs_commons 4.4.0 (October 6th, 2020)

BREAKING CHANGES

• Significant refactor of avs_crypto_security_info_union_t family of types (compatibility aliases are available)

Features

• Initial support for PKCS11-based hardware security
• New APIs:
  • avs_crypto_certificate_chain_info_array_persistence()
  • avs_crypto_certificate_chain_info_from_engine()
  • avs_crypto_certificate_chain_info_list_persistence()
  • avs_crypto_certificate_chain_info_persist()
  • avs_crypto_cert_revocation_list_info_array_persistence()
  • avs_crypto_cert_revocation_list_info_list_persistence()
  • avs_crypto_cert_revocation_list_info_persist()
  • avs_crypto_private_key_info_copy()
  • avs_crypto_private_key_info_from_engine()
  • avs_crypto_private_key_info_persistence()
  • avs_net_socket_dane_tlsa_array_copy()
  • avs_stream_copy()
  • avs_stream_offset()
• Added scripts simplifying unit test code coverage calculation

avs_commons 4.3.1 (August 31st, 2020)

Improvements

• Replaced the test PKCS#7 file in unit tests with a more modern one, that can be loaded properly with newest releases of Mbed TLS

Bugfixes

• Made the library compile again with Mbed TLS configured without CRL support or without file system support
• Fixed some testing code to make it work on macOS and Raspberry Pi OS again
• Added __odr_asan to the list of permitted symbols so that "make check" succeeds when the library is built with AddressSanitizer enabled

avs_commons 4.3.0 (August 24th, 2020)

Features

• Improved trust store handling, including:
  • Support for configuring usage of system-wide trust store
  • Support for trusted certificate arrays and lists in addition to single entries
  • Support for CRLs
• Support for DANE TLSA entries
• Support for loading certs-only PKCS#7 files
• New avs_crypto_client_cert_expiration_date() API
• Removed dtls_echo_server tool that has been unused since version 4.1

Bugfixes

• Fixed a bug that prevented compiling avs_commons without TLS support
• Fixed missing error handling in avs_persistence_sized_buffer()
• Fixed a bug in safe_add_int64_t() that could cause a crash if the result of addition was INT64_MIN
• Fixed various compilation warnings

avs_commons 4.2.1 (July 7th, 2020)

Bugfixes

• Further fixed problems with installing the library via CMake
• Fixed various missing #includes and CMake settings

avs_commons 4.2.0 (July 1st, 2020)

Features

• Added avs_crypto_pki_csr_create()
• Made WITH_AVS_CRYPTO_ADVANCED_FEATURES a configurable CMake option instead of relying on autodetection alone

Improvements

• avs_net_socket_receive_from() can now be called with the source address argument set to NULL
• Moved certificate and key handling to avs_crypto and made it a dependency of avs_net

Bugfixes

• Fixed problems with using installed library due to aliased CMake target names

avs_commons 4.1.3 (May 28th, 2020)

Bugfixes

• Fixes in CMake scripts for corner cases when searching for mbed TLS
• Fix for allowing compilation on platforms that define macros that conflict with avs_log verbosity levels (DEBUG, ERROR etc.)

avs_commons 4.1.2 (May 22nd, 2020)

Bugfixes

• Fixed interoperability problem with CMake versions older than 3.11

avs_commons 4.1.1 (May 21st, 2020)

Bugfixes

• Fixed a bug in CMake scripts that caused link errors when using statically linked versions of mbed TLS

avs_commons 4.1.0 (April 23rd, 2020)

BREAKING CHANGES

• Renamed public header files for better uniqueness
• Redesigned socket creation and in-place decoration APIs, including the addition of a requirement to provide PRNG context
• Renamed some public configuration macros, to unify with the updated compile-time configuration pattern
• Removed the legacy avs_coap component (the version used by Anjay 1.x)
• Removed the mbed TLS custom entropy initializer pattern in favor of the new PRNG framework

Features

• Building without CMake is now officially supported
• Added idiomatic C++ wrapper for AVS_LIST
• New API for cryptographically safe PRNGs in avs_crypto
• File-based streams and default log handler can now be disabled at compile time

Bugfixes

• Fixed a bug in the default socket implementation that prevented compiling on platforms without the IP_TOS socket option support
• Fixed improper parsing of empty host in URLs
• Some previously missed log messages now properly respect WITH_AVS_MICRO_LOGS
• Fixed a bug in netbuf stream's error handling

avs_commons 4.0.3 (February 7th, 2020)

Bugfixes

• Fix for scope of avs_net_mbedtls_entropy_init() declaration in deps.h
• Fix that prevented net_impl.c from compiling when IP_TOS is not available

avs_commons 4.0.2 (January 28th, 2020)

Features

• Support for proper RFC 6125-compliant validation of certificates against hostnames in the OpenSSL backend

Bugfixes

• Fix to TLS backend data loader unit tests

avs_commons 4.0.1 (December 20th, 2019)

Bugfixes

• Prevented certificate-based ciphersuites from being sent in Client Hello when PSK is used over the OpenSSL backend

Features

• Introduced "micro log" feature and AVS_DISPOSABLE_LOG() macro

avs_commons 4.0.0 (November 28th, 2019)

BREAKING CHANGES

• Refactored error handling, introducing the new avs_error_t concept
• Renamed avs_stream_abstract_t to avs_stream_t
• Renamed avs_net_abstract_socket_t to avs_net_socket_t

Features

• avs_net
  • Added support for Server Name Identification (D)TLS extension when using OpenSSL, and ability to enable or disable it explicitly
  • Added support for DTLS Connection ID extension if using a development version of mbed TLS that supports it
  • Added possibility to use custom mbed TLS entropy pool configuration
  • Added ability to configure (D)TLS ciphersuites
  • Added propagation of (D)TLS handshake alert codes to user code
  • Implemented accept() call for UDP sockets
  • Added avs_url_parse_lenient function and separate validation functions
• avs_stream
  • Added avs_stream_membuf_take_ownership function
  • Added avs_stream_membuf_reserve function
• avs_utils
  • Added avs_unhexlify function
• avs_algorithm
  • Refactored base64 to support alternate alphabets and padding settings
• avs_unit
  • Added support for and_then callbacks in mock sockets

Improvements

• Made logs render "..." at the end if truncated
• Improved compatibility with various platforms, including Zephyr
• Improved structure of CMake stage configuration, removed unused definitions
• Reformatted entire codebase

Bugfixes

• Fixed some improperly propagated error cases in HTTP client
• Fixed problems with avs_net sockets not working for localhost if no non-loopback network interfaces are available
• Fixed some potential NULL dereferences, assertion errors and various other fixes

avs_commons 3.11.0 (October 1st, 2019)

NOTE: avs_commons 3.11 is a one-off release that backported some avs_commons 4.0 features onto the 3.10.1 branch. It does not include all changes from avs_commons 3.10.2.

Features

• Added DTLS session resumption and handshake timeouts support in the OpenSSL backend

avs_commons 3.10.2 (July 2nd, 2019)

BREAKING CHANGES

• Removed ignoring context feature from avs_persistence

Features

• Added support for Server Name Identification (SNI) TLS extension (available only in the Mbed TLS backend)
• Added avs_crypto module
• Added avs_persistence_magic() and avs_persistence_version() APIs
• Added support for SNI in the OpenSSL backend

Improvements

• Added support for signed char in AVS_UNIT_ASSERT_EQUAL()
• Sanitized dependencies between avs_commons modules
• Various compatibility improvements
• Added extern "C" clauses missing in some files, added regression testing for that, fixed some other C++ incompatibilities

Bugfixes

• Added various missing NULL checks

avs_commons 3.10.1 (April 30th, 2019)

Bugfixes

• Fixed inconsisted include guard name in stream_membuf.h

avs_commons 3.10.0 (April 23rd, 2019)

Features

• Made avs_persistence contexts stack-allocatable
• Added statistical counters in avs_net

Bugfixes

• Fixed results of avs_coap_exchange_lifetime(). Previously the results were not in line with RFC7252 requirements, an order of magnitude off in some cases
• Various compatibility fixes

avs_commons 3.9.1 (March 26th, 2019)

Bugfixes

• Fix of usage of select() on platforms that do not support poll()
• Added new AVS_RESCHED_* APIs
• Fixes for various compilation warnings

avs_commons 3.9.0 (February 14th, 2019)

BREAKING CHANGES

• Extracted avs_stream_net library to break a dependency cycle between components. Applications that do not use CMake need to manually add libavs_stream_net.a to the linker command line.
• Various renames and refactors for better API consistency

Features

• Added condition variables to compat_threading
• Added avs_sched
• Added avs_shared_buffer
• Added various utility APIs
• Added support for CoAP FETCH and iPATCH codes

Improvements

• Further improved C++ compatibility
• Prevented http_close() from unnecessarily downloading the data to end

avs_commons 3.8.3 (October 24th, 2018)

Features

• Reimplemented avs_coap_opt_u*_value() and avs_coap_msg_get_option_u*(); removed the _uint() variants

avs_commons 3.8.2 (October 3rd, 2018)

Improvements

• Improved logs from the IP address stringification code.

Bugfixes

• Fixes for proper propagation of avs_stream_close() errors.
• Fixes for external library dependency checking.
• Fixes for various compilation warnings.

avs_commons 3.8.1 (September 21st, 2018)

Bugfixes

• Fixed include directory settings when custom compat_threading is used

avs_commons 3.8.0 (September 13th, 2018)

BREAKING CHANGES

• avs_commons now requires CMake 3.4.0 or higher.

avs_commons 3.7.1 (September 4th, 2018)

Bugfixes

• Fixed a problem that unit tests didn't compile with OpenSSL versions that do not support DTLS 1.2

avs_commons 3.7.0 (August 27th, 2018)

Features

• Added equality comparators for avs_time primitives
• Support for avs_net_socket_decorate() in more socket states
• Added avs_stream_simple_output_create(), avs_stream_simple_input_create() and avs_stream_buffered_create() APIs

Improvements

• Improved compatibility with various OSes, like Arch Linux

avs_commons 3.6.2 (July 10th, 2018)

Bugfixes

• a more restrictive approach to symbols from POSIX or C standard library that should not be used in embedded environments
• a fix of compilation on ARMCC
• a fix of compile time warning on IAR

avs_commons 3.6.1 (June 29th, 2018)

Bugfixes

• Fixed compatibility issues in tests.

avs_commons 3.6.0 (June 28th, 2018)

Features

• avs_compat_threading module, implementing necessary synchronization primitives used across AvsCommons such as mutexes
• avs_cleanup_global_state() method, allowing to (optionally) free any global state implicitly instantiated in avs_commons
• Support for previously missing functions in the mock socket in avs_unit

Improvements

• Further compatibility fixes for FreeBSD

avs_commons 3.5.0 (June 15th, 2018)

BREAKING CHANGES

• Support for AVS_LIST_CONFIG_ALLOC and AVS_LIST_CONFIG_FREE has been removed in favour of the new library-wide allocator setting

Features

• Added support for custom heap allocators (avs_malloc, avs_calloc, avs_realloc, avs_free)

Improvements

• removal of use of all time() calls,
• removal of use of variable length array language feature,
• default socket implementation refactor to use a nonblocking socket API,

avs_commons 3.4.3 (May 29th, 2018)

Features

• Added AVS_ASSERT() and AVS_UNREACHABLE() APIs

Improvements

• Further improvements to handling of POSIX-compatibility headers

avs_commons 3.4.2 (May 28th, 2018)

BREAKING CHANGES

• Refactored global state management - if you are providing your own network stack integration, you will need provide two additional functions: _avs_net_initialize_global_compat_state and _avs_net_cleanup_global_compat_state

Features

• New avs_list APIs: AVS_LIST_ADVANCE(), AVS_LIST_ADVANCE_PTR()
• Initial support for Windows

Improvements

• Various compatibility improvements

avs_commons 3.4.1 (May 17th, 2018)

Bugfixes

• Fixed bug in avs_http that prevented digest authentication from working
• Fixed conditional compilation bugs in avs_net that made it impossible to disable certain features
• Fixed bugs in avs_net unit tests that prevented them from passing on systems without JDK installed and when ran as root

Improvements

• Simplified TLS session persistence logic (removed dependency on mbed TLS session cache)
• Fixed compilation warnings on mbed TLS >= 2.7
• Worked around false positive warnings from scan-build 6.0

avs_commons 3.4.0 (May 10th, 2018)

Features

• Moved persistence subsystem from Anjay and improved upon it:
  • Added support for persisting additional integer types
  • Added support for persisting containers with variable size elements
  • Added ability to check the type of persistence context

Improvements

• BREAKING API CHANGE: Changed TLS session resumption API so that it is now serialized to and deserialized from user-provided buffer
• BREAKING API CHANGE: Simplified certificate and key configuration API
  • Note that this change dropped support for some libraries that implement "fake" OpenSSL API
• Refactored avs_log() so that compiler will always parse TRACE-level logs, even if code generation for them is disabled
• Fixed various compilation warnings and compatibility with different compilers
• Fixed warnings when compiling with mbed TLS 2.3 and newer

Bugfixes

• Fixed critical bugs in CoAP option handling:
  • Potential integer overflow
  • Erroneous operation on big-endian machines
• Added various missing NULL checks

avs_commons 3.3.2 (March 9th, 2018)

Features

• Added new avs_hexlify_some() API

Bugfixes

• Added missing #include in the Mbed TLS backend

avs_commons 3.3.1 (February 28th, 2018)

Bugfixes

• Further fixes for C++ compatibility of avs_list
• Proper handling of message truncation in DTLS
• Allowed ACK_RANDOM_FACTOR equal to 1.0 in avs_coap

avs_commons 3.3.0 (February 15th, 2018)

Features

• Added WITH_X509 configuration option to allow disabling certificate-based security support

Improvements

• Improvements to interoperability with C++ code and various C compilers of macro-based data structures such as AVS_LIST()

avs_commons 3.2.5 (January 31st, 2018)

Bugfixes

• Fix of the "preferred endpoint" feature, which prevented the CWMP requirement for ACS node affinity from working properly.
• Fixed problems that prevented binding sockets on ephemeral ports on some platforms (e.g. lwIP).
• Fixed problems that prevented SSL/TLS from working on platforms that don't support the atexit() function (mostly embedded environments).
• Fixed problems with linking Mbed libraries properly.

avs_commons 3.2.4 (January 8th, 2018)

Bugfixes

• Fixed sending the Cookie HTTP header (multiple cookies are sent in a single header) in line with the RFC requirements.

avs_commons 3.2.3 (January 8th, 2018)

Improvements

• Ran shellcheck on scripts within the project

avs_commons 3.2.2 (December 18th, 2017)

Improvements

• Unified errno handling across all modules

Bugfixes

• Workaround for strict aliasing issues in avs_list

avs_commons 3.2.1 (December 11th, 2017)

Features

• Added possibility to disable unit tests even if avs_unit is being compiled

Improvements

• Fixed interoperability with HTTP servers that unexpectedly close connection
• Various compatibility fixes for FreeBSD

Bugfixes

• Fixed undefined behavior in CoAP message cache
• Fixed compatibility with compilers that don't support either stdatomic.h or GCC-style _sync* builtins
• Prevented CoAP back-off timer randomization from occasionally using negative numbers
• Fixed minor error handling problems
• Fixed link commands for TinyDTLS interoperability

avs_commons 3.2.0 (November 24th, 2017)

Features

• Added new API: avs_http_set_header_storage()

Improvements

• Changed lifetime of Mbed TLS RNG structures to improve memory footprint

Bugfixes

• Fixed error handling in avs_http
• Fixed erroneous random range handling in avs_coap
• Added support for URLs without path but with query string, and with tildes

avs_commons 3.1.0 (October 5th, 2017)

BREAKING CHANGES

• Refactored time handling, including separate data types for absolute and relative time values

Improvements

• Further isolated compatibility with non-POSIX platforms

Bugfixes

• Fixed TRACE logs not being compiled in some

avs_commons 3.0.3 (September 19th, 2017)

Improvements

• Made all source file names unique project-wide, to improve compatibility with some embedded IDEs

avs_commons 3.0.2 (September 14th, 2017)

Features

• Added preferred_family field in avs_net_socket_configuration_t and prevented the library from performing unnecessary DNS queries.
• Added option for detailed logging from the Mbed TLS backend

Improvements

• Sanitized usages of GCC visibility pragmas
• Fixed support for platforms without CLOCK_MONOTONIC

avs_commons 3.0.1 (September 8th, 2017)

Improvements

• Fixed compatibility with lwIP 2.0
• Improved compatibility with various operating systems including CentOS and macOS
• Improved compatibility with IAR Embedded Workbench
• Improved compatibility with platforms that do not have getifaddrs()

Bugfixes

• Fixed buffer overflow in msg_cache test in avs_coap
• Fixed handling of empty username/password in the HTTP client
• Fixed license_check make target in out-of-source builds

avs_commons 3.0.0 (August 30th, 2017)

BREAKING CHANGES

• Open source license of avs_commons changed from MIT to Apache 2.0
• Refactored the write method in avs_stream so that the vtable entry now may support short writes and is called write_some
• Added avs_net_socket_get_local_host() method
• Removed support for short writes in avs_net_socket_send_to()
• OPENSSL_CUSTOM_CIPHERS_ENABLED and WITH_OPENSSL_CUSTOM_CIPHERS CMake flags are no longer set by default. Use WITH_OPENSSL_CUSTOM_CIPHERS=DEFAULT:!ECDSA to restore previous defaults

Features

• CoAP client component, based on code previously written for Anjay, has been added
• HTTP client component, based on code previously written for libCWMP, has been added
• Added URL parsing routines
• Added time handling routines
• Various new utility functions
• POSIX dependencies are now better isolated to ease porting onto non-POSIX platforms

Bugfixes

• Fixed case where SSLv2_OR_3 is used in OpenSSL >= 1.1.0
• Fixed various possible compilation warnings
• Sanitized error handling for avs_net_socket_accept()

avs_commons 2.0.7 (July 24th, 2017)

Features

• Made DTLS handshake timeout configurable

Improvements

• Added CMake logic for properly finding the TinyDTLS library
• Minor refactors in PSK data ownership handling

Bugfixes

• Fixed a typo in FindMbedTLS.cmake
• Fixed minor compilation warnings in the OpenSSL backend

avs_commons 2.0.6 (July 12th, 2017)

Features

• Added fallback implementation of rand_r() for systems that don't have one

Improvements

• Changed asserts in avs_unit to use more natural comparisons
• Added extra casts to silence static analysis warnings
• Various improvements to mock socket implementation

Bugfixes

• Fixed data type conversions in SSL integration
• Fixed a possible undefined behavior in AVS_RBTREE_SIMPLE_CLONE()
• Sanitized error checking in system_socket_net()

avs_commons 2.0.5 (June 19th, 2017)

Improvements

• Made AVS_LIST_MERGE and AVS_LIST_SORT stable
• Added possibility to specify default mocked MTU in avs_unit mock sockets

Bugfixes

• Fixed Mbed TLS detection in out-of-source builds
• Fixed a problem that the library was not compiling with minimal flags
• Made sure that avs_buffer data is properly aligned
• Fixed a bug in AVS_ALIGN_POINTER_INTERNAL__

avs_commons 2.0.4 (April 3rd, 2017)

Improvements

• Made DTLS and PSK support state configurable, and disabled those by default
• Improved compatibility with different versions of OpenSSL

avs_commons 2.0.3 (March 23rd, 2017)

Bugfixes

• Fixed a bug in integration with mbed TLS which sometimes caused failures during receiving

avs_commons 2.0.2 (March 14th, 2017)

Bugfixes

• Fixed compatibility with OpenSSL 0.9.7

avs_commons 2.0.1 (March 14th, 2017)

Improvements

• Prevented calling SSL_shutdown after socket shutdown

avs_commons 2.0.0 (March 8th, 2017)

Features (partial list)

• Added base64 codec implementation
• Added logging subsystem
• Added networking subsystem, including SSL library integration
• Added red-black tree implementation
• Added streaming API
• Added vector implementation

avs_commons 1.0.0 (February 13th, 2014)

Initial release.

NOTE: Before 2.0.0, avs_commons was a rolling release, and had no explicit version numbers.