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. base: Provide pldm_msg_hdr_correlate_response()
  2. transport: af-mctp: Add pldm_transport_af_mctp_bind()
  3. oem: ibm: Add chapdata file type support

Changed

  1. base: Stabilise pldm_msg_hdr_correlate_response()
  2. transport: af-mctp: Stabilise pldm_transport_af_mctp_bind()
  3. libpldm: Fix header use

[0.7.0] - 2023-08-29

Added

  1. state-set: Add new enum for Operational Fault Status enum

Changed

  1. transport: Match specified metadata in pldm_transport_send_recv_msg()

  2. transport: mctp-demux: Drop ABI annotation for internal symbols

  3. transport: Stabilise core transport and implementation APIs

    This stabilisation covers the following headers and functions:

    • libpldm/transport.h

      • pldm_transport_poll()
      • pldm_transport_send_msg()
      • pldm_transport_recv_msg()
      • pldm_transport_send_recv_msg()
    • libpldm/transport/af-mctp.h

      • pldm_transport_af_mctp_init()
      • pldm_transport_af_mctp_destroy()
      • pldm_transport_af_mctp_core()
      • pldm_transport_af_mctp_init_pollfd()
      • pldm_transport_af_mctp_map_tid()
      • pldm_transport_af_mctp_unmap_tid()
    • libpldm/transport/mctp-demux.h

      • pldm_transport_mctp_demux_init()
      • pldm_transport_mctp_demux_destroy()
      • pldm_transport_mctp_demux_core()
      • pldm_transport_mctp_demux_init_pollfd()
      • pldm_transport_mctp_demux_map_tid()
      • pldm_transport_mctp_demux_unmap_tid()

Deprecated

  1. All the existing "requester" APIs from libpldm/pldm.h (also known as libpldm/requester/pldm.h):

    • pldm_open()
    • pldm_send_recv()
    • pldm_send()
    • pldm_recv()
    • pldm_recv_any()
    • pldm_close()

    Users should migrate to the newer "transport" APIs instead.

Fixed

  1. tests: Exclude transport tests when build excludes testing ABIs
  2. abi: Capture deprecation of pldm_close()

[0.6.0] - 2023-08-22

Changed

  1. pdr: Avoid ID overflow in pldm_entity_association_tree_add_entity()
  2. meson: Apply b_ndebug=if-release by default
  3. pdr : Stabilize pldm_entity_association_tree_add_entity()
  4. pdr: Stabilise pldm_entity_association_tree_find_with_locality()
  5. pdr: Stabilize pldm_entity_node_get_remote_container_id()
  6. transport: af-mctp: Assign out-params on success in *_recv()
  7. transport: Generalise the pldm_transport_recv_msg() API

Removed

  1. pdr: Remove pldm_entity_association_pdr_add()
  2. state-set: Remove enum pldm_state_set_operational_fault_status_values

Fixed

  1. transport: register init_pollfd callback for af-mctp
  2. transport: fix init_pollfd function parameter
  3. transport: Fix doxygen and variables for send and recv functions
  4. transport: af-mctp: Ensure malloc() succeeds in *_recv()

[0.5.0] - 2023-08-09

Added

  1. pdr: Introduce pldm_entity_association_pdr_add_check()

Changed

  1. pdr: Allow record_handle to be NULL for pldm_pdr_add_check()
  2. transport: pldm_transport_poll(): Adjust return value semantics
  3. transport: free un-wanted responses in pldm_transport_send_recv_msg()

Deprecated

  1. state-set: Enum pldm_state_set_operational_fault_status_values

    The enum operational_fault_status is defined with wrong members and will eventually be replaced with the correct members. Any uses of pldm_state_set_operational_fault_status_values members should move to equivalent pldm_state_set_operational_stress_status_values members if needed.

  2. platform: Struct field name in fru_record_set PDR

    References to entity_instance_num should be changed to entity_instance

  3. platform: Struct field name in numeric sensor value PDR

    References to entity_instance_num should be changed to entity_instance

Removed

  1. bios_table: Remove pldm_bios_table_attr_entry_integer_encode_length()
  2. bios_table: Remove pldm_bios_table_attr_value_entry_encode_enum()
  3. bios_table: Remove pldm_bios_table_attr_value_entry_encode_string()
  4. bios_table: Remove pldm_bios_table_attr_value_entry_encode_integer()
  5. bios_table: Remove pldm_bios_table_append_pad_checksum()
  6. fru: Remove get_fru_record_by_option()
  7. pdr: Make is_present() static
  8. pdr: Remove pldm_pdr_add()
  9. pdr: Remove pldm_pdr_add_fru_record_set()
  10. pdr: Remove pldm_entity_association_pdr_add_from_node()
  11. pdr: Make find_entity_ref_in_tree() static
  12. pdr: Make entity_association_tree_find() static

Fixed

  1. requester: Fix response buffer cast in pldm_send_recv()
  2. pdr: Hoist record handle overflow test to avoid memory leak
  3. transport: Correct comparison in while loop condition

[0.4.0] - 2023-07-14

Added

  1. bios_table: Introduce pldm_bios_table_append_pad_checksum_check()
  2. fru: Introduce get_fru_record_by_option_check()
  3. pdr: Introduce pldm_entity_association_pdr_add_from_node_check()
  4. pdr: Introduce pldm_pdr_add_check()
  5. pdr: Introduce pldm_pdr_add_fru_record_set_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

  17. pdr: pldm_entity_association_pdr_add(): Exit early on bad arguments

  18. pdr: pldm_find_entity_ref_in_tree(): Exit early on bad arguments

  19. pdr: pldm_entity_association_tree_find(): Early exit on bad arguments

  20. pdr: pldm_entity_association_tree_destroy_root(): Exit early on bad arg

  21. pdr: pldm_entity_association_pdr_extract(): Early exit on bad arguments

  22. pdr: pldm_entity_association_pdr_extract(): Assign out params at exit

  23. pdr: pldm_entity_get_num_children(): Don't return invalid values

  24. libpldm: Lift or remove asserts where a subsequent check exists

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.

  6. pdr: Deprecate find_entity_ref_in_tree()

    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.

  7. pdr: Deprecate entity_association_tree_find()

    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.

  8. bios_table: Stabilise pldm_bios_table_append_pad_checksum_check()

    pldm_bios_table_append_pad_checksum() is deprecated by this change. Users of pldm_bios_table_append_pad_checksum() should migrate to pldm_bios_table_append_pad_checksum_check()

  9. fru: Stabilise get_fru_record_by_option_check()

    get_fru_record_by_option() is deprecated by this change. Users of get_fru_record_by_option() should migrate to get_fru_record_by_option_check()

  10. pdr: Stabilise pldm_entity_association_pdr_add_from_node_check()

    pldm_entity_association_pdr_add_from_node() is deprecated by this change. Users of pldm_entity_association_pdr_add_from_node() should migrate to pldm_entity_association_pdr_add_from_node_check()

  11. pdr: Stabilise pldm_pdr_add_check()

    pldm_pdr_add() is deprecated by this change. Users of pldm_pdr_add() should migrate to pldm_pdr_add_check()

  12. pdr: Stabilise pldm_pdr_add_fru_record_set_check()

    pldm_pdr_add_fru_record_set() is deprecated by this change. Users of pldm_pdr_add_fru_record_set() should migrate to pldm_pdr_add_fru_record_set_check()

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
  6. transport: Fix possible NULL ptr deref in pldm_socket_sndbuf_init()
  7. abi: Update to remove pldm_close() from reference dumps
  8. bios_table: Annotate pldm_bios_table_attr_value_entry_encode_integer()

[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