Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Change categories:

  • Added
  • Changed
  • Deprecated
  • Removed
  • Fixed
  • Security

[Unreleased]

Added

  1. bios_table: Introduce pldm_bios_table_append_pad_checksum_check()
  2. fru: Introduce get_fru_record_by_option_check()

Changed

  1. requester: Mark pldm_close() as LIBPLDM_ABI_TESTING

  2. requester: Expose pldm_close() in header

  3. bios_table: pldm_bios_table_string_entry_encode_check(): Handle overflow

  4. bios_table: pldm_bios_table_iter_create(): Return NULL on failed alloc

  5. bios_table: pldm_bios_table_iter_next(): Invalid entry halts iteration

  6. pdr: pldm_pdr_init(): Return NULL on allocation failure

  7. pdr: pldm_pdr_destroy(): Exit early if repo is NULL

  8. pdr: Document preconditions for trivial accessor functions

    A trivial accessor function is one that exposes properties of an object in a way can't result in an error, beyond passing an invalid argument to the function. For APIs meeting this definition we define a precondition that struct pointers must point to valid objects to avoid polluting the function prototypes. The following APIs now have this precondition explicitly defined:

    • pldm_entity_extract()
    • pldm_entity_get_parent()
    • pldm_entity_is_exist_parent()
    • pldm_entity_is_node_parent()
    • pldm_is_current_parent_child
    • pldm_is_empty_entity_assoc_tree()
    • pldm_pdr_get_record_count()
    • pldm_pdr_get_record_handle()
    • pldm_pdr_get_repo_size()
    • pldm_pdr_record_is_remote()
  9. pdr: pldm_entity_node_get_remote_container_id() is a trivial accessor

  10. pdr: pldm_pdr_fru_record_set_find_by_rsi(): Exit early on NULL arguments

  11. pdr: pldm_entity_association_tree_init(): Return NULL on failed alloc

  12. pdr: pldm_entity_association_tree_visit(): Document preconditions

  13. pdr: pldm_entity_association_tree_visit(): Exit early on failure

  14. pdr: pldm_entity_association_tree_destroy(): Exit early on bad argument

  15. pdr: pldm_entity_get_num_children(): Return zero for invalid arguments

  16. pdr: pldm_is_current_parent_child(): Return false for invalid arguments

Deprecated

  1. pldm_bios_table_attr_entry_integer_encode()

    Migrate to pldm_bios_table_attr_entry_integer_encode_check()

  2. bios_table: Deprecate pldm_bios_table_attr_value_entry_encode_enum()

    Migrate to pldm_bios_table_attr_value_entry_encode_enum_check()

  3. bios_table: Deprecate pldm_bios_table_attr_value_entry_encode_string()

    Migrate to pldm_bios_table_attr_value_entry_encode_string_check()

  4. bios_table: Deprecate pldm_bios_table_attr_value_entry_encode_integer()

    Migrate to pldm_bios_table_attr_value_entry_encode_integer_check()

  5. pdr: Deprecate is_present()

    There should be no users of this symbol. If you are a user, you should figure out how to stop, or get in touch. This symbol will be marked static the release after deprecation.

Removed

  1. bios_table: Remove deprecated APIs sanitized by assert():

    • pldm_bios_table_string_entry_encode()
    • pldm_bios_table_string_entry_decode_string()
    • pldm_bios_table_attr_entry_enum_encode()
    • pldm_bios_table_attr_entry_enum_decode_pv_num()
    • pldm_bios_table_attr_entry_enum_decode_def_num()
    • pldm_bios_table_attr_entry_enum_decode_pv_hdls()
    • pldm_bios_table_attr_entry_string_encode()
    • pldm_bios_table_attr_entry_string_decode_def_string_length()

Fixed

  1. pdr: Return success for pldm_pdr_find_child_container_id_range_exclude() API
  2. pdr: Rework pldm_pdr_find_container_id_range_exclude() API
  3. transport: mctp-demux: Don't test socket for non-zero value
  4. requester: Return PLDM_REQUESTER_OPEN_FAIL from pldm_open() on error
  5. pdr: pldm_pdr_fru_record_set_find_by_rsi(): Document reality of return

[0.3.0] - 2023-06-23

Added

  1. Add encode/decode pldmMessagePollEvent data
  2. README: Add a section on working with libpldm
  3. pdr: Introduce remote_container_id and associated APIs
  4. pdr: Add APIs for creating and locating remote PDRs
  5. pdr: Add pldm_pdr_find_last_in_range()
  6. pdr: Add pldm_entity_association_pdr_add_from_node_with_record_handle()
  7. pdr: Add pldm_pdr_find_container_id_range_exclude()

Changed

  1. include: Move installed transport.h under libpldm/

  2. libpldm: Explicit deprecated, stable and testing ABI classes

  3. meson: Reduce strength of oem-ibm requirements from enabled to allowed

    The oem-ibm feature is now enabled by the default meson configuration, for CI purposes. oem-ibm is still disabled by default in the libpldm bitbake recipe:

    https://github.com/openbmc/openbmc/blob/master/meta-phosphor/recipes-phosphor/libpldm/libpldm_git.bb#L10

    To disable oem-ibm in your development builds, pass -Doem-ibm=disabled when invoking meson setup

  4. bios_table: Relax pldm_bios_table_string_entry_decode_string_check()

  5. bios_table: Relax pldm_bios_table_attr_entry_enum_decode_pv_hdls_check()

Deprecated

  1. bios_table: Deprecate APIs with arguments sanitized using assert()

    C provides enough foot-guns without us encoding them into library APIs. Specifically, deprecate the following in favour of their *_check() variants which ensure assertions won't fail or otherwise invoke UB:

    • pldm_bios_table_string_entry_encode()
    • pldm_bios_table_string_entry_decode_string()
    • pldm_bios_table_attr_entry_enum_encode()
    • pldm_bios_table_attr_entry_enum_decode_pv_num()
    • pldm_bios_table_attr_entry_enum_decode_def_num()
    • pldm_bios_table_attr_entry_enum_decode_pv_hdls()
    • pldm_bios_table_attr_entry_string_encode()
    • pldm_bios_table_attr_entry_string_decode_def_string_length()

Removed

  1. libpldm: Remove the requester-api option

Fixed

  1. requester: Make pldm_open() return existing fd
  2. transport: Prevent sticking in waiting for response
  3. transport: Match on response in pldm_transport_send_recv_msg()
  4. requester: Add check before accessing hdr in pldm_recv()
  5. bios_table: pldm_bios_table_attr_entry_string_info_check() NULL deref