1# Changelog 2 3All notable changes to this project will be documented in this file. 4 5The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), 6and this project adheres to 7[Semantic Versioning](https://semver.org/spec/v2.0.0.html). 8 9Change categories: 10 11- Added 12- Changed 13- Deprecated 14- Removed 15- Fixed 16- Security 17 18## [Unreleased] 19 20### Added 21 221. oem: meta: Add decode_oem_meta_file_io_write_req() 232. oem: meta: Add decode_oem_meta_file_io_read_req() 243. oem: meta: Add encode_oem_meta_file_io_read_resp() 254. pdr: Add pldm_entity_association_pdr_remove_contained_entity() 265. pdr: Add pldm_pdr_remove_fru_record_set_by_rsi() 276. pldm_entity_association_tree_copy_root_check() 287. oem: ibm: Add topology related state set and enum 29 307. base: Add size and buffer macros for struct pldm_msg 31 32 Together these macros reduce the need for use of reinterpret_cast<>() in C++. 33 34### Changed 35 361. dsp: bios_table: Null check for pldm_bios_table_iter_is_end() 37 38 pldm_bios_table_iter_is_end() now returns true if the provided argument is 39 NULL. 40 412. ABI break for pldm_pdr_find_record() 42 43 Register assignment for function parameters was changed with the removal of 44 some asserts in related implementations. 45 463. ABI break for pldm_pdr_get_next_record() 47 48 Register assignment for function parameters was changed with the removal of 49 some asserts in related implementations. 50 51### Deprecated 52 531. oem: meta: Deprecate `decode_oem_meta_file_io_req()` 54 55 Users should switch to `decode_oem_meta_file_io_write_req()`. Modify this 56 function to make it safer. 57 58 Modification: 59 60 - The meaning of the returned result. 61 - Change parameters from individual pointers to a struct. 62 - Check the length provided in the message won't exceed the buffer. 63 642. pldm_entity_association_tree_copy_root() 65 66 The implementation allocates, but gives no indication to the caller if an 67 allocation (and hence the copy) has failed. Users should migrate to 68 pldm_entity_association_tree_copy_root_check(). 69 70### Removed 71 721. Deprecated functions with the `_check` suffix 73 74 - `get_fru_record_by_option_check()` 75 - `pldm_bios_table_append_pad_checksum_check()` 76 - `pldm_bios_table_attr_entry_enum_decode_def_num_check()` 77 - `pldm_bios_table_attr_entry_enum_decode_pv_hdls_check()` 78 - `pldm_bios_table_attr_entry_enum_decode_pv_num_check()` 79 - `pldm_bios_table_attr_entry_enum_encode_check()` 80 - `pldm_bios_table_attr_entry_integer_encode_check()` 81 - `pldm_bios_table_attr_entry_string_decode_def_string_length_check()` 82 - `pldm_bios_table_attr_entry_string_encode_check()` 83 - `pldm_bios_table_attr_value_entry_encode_enum_check()` 84 - `pldm_bios_table_attr_value_entry_encode_integer_check()` 85 - `pldm_bios_table_attr_value_entry_encode_string_check()` 86 - `pldm_bios_table_string_entry_decode_string_check()` 87 - `pldm_bios_table_string_entry_encode_check()` 88 - `pldm_entity_association_pdr_add_check()` 89 - `pldm_entity_association_pdr_add_from_node_check()` 90 - `pldm_pdr_add_check()` 91 - `pldm_pdr_add_fru_record_set_check()` 92 93### Fixed 94 951. dsp: bios_table: Null check for pldm_bios_table_iter_is_end() 96 97 Avoid a caller-controlled NULL pointer dereference in the library 98 implementation. 99 100## [0.9.1] - 2024-09-07 101 102### Changed 103 1041. Moved evolutions intended for v0.9.0 into place 105 106 Evolutions for the release have been moved from `evolutions/current` to 107 `evolutions/v0.9.1`. Library users can apply them to migrate off of 108 deprecated APIs. 109 110## [0.9.0] - 2024-09-07 111 112### Added 113 1141. base: Define macros for reserved TIDs 1152. pdr: Add pldm_entity_association_pdr_add_contained_entity_to_remote_pdr() 1163. pdr: Add pldm_entity_association_pdr_create_new() 1174. platform: Define macros for the responded transferflags 1185. pdr: Add pldm_pdr_get_terminus_handle() API 1196. pdr: Add related decode_entity_auxiliary_names_pdr() APIs 1207. fw_update: Add encode req & decode resp for get_downstream_fw_params 1218. platform: Add decode_pldm_platform_cper_event() API 1229. decode_get_pdr_repository_info_resp_safe() 123 124 Replaces decode_get_pdr_repository_info_resp() as discussed in the 125 `Deprecated` section below 126 12710. decode_get_pdr_resp_safe() 128 129 Replaces decode_get_pdr_resp() as discussed in the `Deprecated` section 130 below 131 132### Changed 133 1341. pdr: Stabilise related decode_entity_auxiliary_names_pdr() APIs 1352. platform: Rework decode/encode_pldm_message_poll_event_data() APIs 1363. platform: Stabilise decode_pldm_message_poll_event_data() APIs 1374. ABI break for decode_sensor_op_data() 138 139 Applying LIBPLDM_CC_NONNULL to the internal msgbuf APIs caused 140 abi-compliance-checker to flag a change in the register containing the 141 parameter `previous_op_state`. 142 1435. platform: Stabilise decode_pldm_platform_cper_event() API 1446. oem: meta: Stabilise decode_oem_meta_file_io_write_req() API 1457. oem: meta: Stabilise decode_oem_meta_file_io_read_req() API 1468. oem: meta: Stabilise encode_oem_meta_file_io_read_resp() API 147 148### Deprecated 149 1501. Rename and deprecate functions with the `_check` suffix 151 152 All library function return values always need to be checked. The `_check` 153 suffix is redundant, so remove it. Migration to the non-deprecated 154 equivalents without the `_check` suffix can be performed using 155 `scripts/ apply-renames` and the [clang-rename][] configurations under 156 `evolutions/` 157 158 The deprecated functions: 159 160 - `get_fru_record_by_option_check()` 161 - `pldm_bios_table_append_pad_checksum_check()` 162 - `pldm_bios_table_attr_entry_enum_decode_def_num_check()` 163 - `pldm_bios_table_attr_entry_enum_decode_pv_hdls_check()` 164 - `pldm_bios_table_attr_entry_enum_decode_pv_num_check()` 165 - `pldm_bios_table_attr_entry_enum_encode_check()` 166 - `pldm_bios_table_attr_entry_integer_encode_check()` 167 - `pldm_bios_table_attr_entry_string_decode_def_string_length_check()` 168 - `pldm_bios_table_attr_entry_string_encode_check()` 169 - `pldm_bios_table_attr_value_entry_encode_enum_check()` 170 - `pldm_bios_table_attr_value_entry_encode_integer_check()` 171 - `pldm_bios_table_attr_value_entry_encode_string_check()` 172 - `pldm_bios_table_string_entry_decode_string_check()` 173 - `pldm_bios_table_string_entry_encode_check()` 174 - `pldm_entity_association_pdr_add_check()` 175 - `pldm_entity_association_pdr_add_from_node_check()` 176 - `pldm_pdr_add_check()` 177 - `pldm_pdr_add_fru_record_set_check()` 178 179[clang-rename]: https://clang.llvm.org/extra/clang-rename.html 180 1812. `decode_get_pdr_repository_info_resp()` 182 183 Users should move to `decode_get_pdr_repository_info_resp_safe()` which 184 eliminates the opportunity for buffer overruns when extracting objects from 185 the message. 186 1873. `decode_get_pdr_resp()` 188 189 Users should move to `decode_get_pdr_resp_safe()` which reduces the 190 invocation tedium and improves memory safety over `decode_get_pdr_resp()`. 191 192### Removed 193 1941. IBM OEM header compatibility symlinks. 195 196 Anyone left using the deprecated paths can migrate using the coccinelle patch 197 at `evolutions/current/oem-ibm-header-compat.cocci`. 198 199### Fixed 200 2011. requester: instance-id: Release read lock on conflict 2022. pdr: Error propagation for 203 pldm_entity_association_pdr_add_from_node_with_record_handle() 204 205## [0.8.0] - 2024-05-23 206 207### Added 208 2091. base: Provide pldm_msg_hdr_correlate_response() 2102. transport: af-mctp: Add pldm_transport_af_mctp_bind() 2113. oem: ibm: Add chapdata file type support 2124. base: Added PLDM_SMBIOS & PLDM_RDE message types 2135. oem: meta: Add decode_oem_meta_file_io_req() 2146. state-set: Add all state set values to system power state enum as per DSP0249 2157. platform: Add alias members to the enum 216 pldm_pdr_repository_chg_event_change_record_event_data_operation. 217 218 enum constants with inconsistent names are deprecated with this change. 219 remove old inconsistent enum members after backward compatibility cleanup is 220 done 221 2228. oem-ibm: Alias `pldm_oem_ibm_fru_field_type` members as `PLDM_OEM_IBM_*` 2239. oem: ibm: Add Firmware Update Access Key(UAK) as a FRU field type 22410. platform: Add 3 PDR type enum for Redfish Device Enablement per 225 DSP0248_1.2.0 22611. state_set: Add CONNECTED and DISCONNECTED enum for Link State set 22712. entity: Add enum for Network Interface Connectors and Network Ports 228 Connection Types 22913. pdr: Add decode_numeric_effecter_pdr_data() 23014. oem: ibm: Support for the Real SAI entity id 23115. fw_update: Add encode req & decode resp for query_downstream_devices 23216. fw_update: Add encode req & decode resp for query_downstream_identifiers 23317. platform: Add support for GetStateEffecterStates command 234 235### Changed 236 2371. base: Stabilise pldm_msg_hdr_correlate_response() 2382. transport: af-mctp: Stabilise pldm_transport_af_mctp_bind() 2393. libpldm: Fix header use 2404. libpldm: More fixes for header use 2415. pdr: Stabilise pldm_pdr_find_last_in_range() API 2426. pdr: Stabilise pldm_entity_association_pdr_add_from_node_with_record_handle() 2437. oem: meta: stabilise decode_oem_meta_file_io_req() 2448. pdr: pldm_entity_association_tree_copy_root(): Document preconditions 245 246### Deprecated 247 2481. Deprecate `pldm_oem_ibm_fru_field_type` members that that are not prefixed 249 with `PLDM_OEM_IBM_` 250 251### Fixed 252 2531. libpldm: Rationalise the local and installed path of pldm.h 2542. pdr: Assign record_handle in entity_association_pdr_add_children() 2553. msgbuf: Require sensor data enum in pldm_msgbuf_extract_sensor_value() 2564. pdr: Remove redundant constant for minimum numeric sensor PDR length 2575. tests: oem: meta: Fix fileio use of msgbuf 258 259## [0.7.0] - 2023-08-29 260 261### Added 262 2631. state-set: Add new enum for Operational Fault Status enum 264 265### Changed 266 2671. transport: Match specified metadata in pldm_transport_send_recv_msg() 2682. transport: mctp-demux: Drop ABI annotation for internal symbols 2693. transport: Stabilise core transport and implementation APIs 270 271 This stabilisation covers the following headers and functions: 272 273 - libpldm/transport.h 274 275 - pldm_transport_poll() 276 - pldm_transport_send_msg() 277 - pldm_transport_recv_msg() 278 - pldm_transport_send_recv_msg() 279 280 - libpldm/transport/af-mctp.h 281 282 - pldm_transport_af_mctp_init() 283 - pldm_transport_af_mctp_destroy() 284 - pldm_transport_af_mctp_core() 285 - pldm_transport_af_mctp_init_pollfd() 286 - pldm_transport_af_mctp_map_tid() 287 - pldm_transport_af_mctp_unmap_tid() 288 289 - libpldm/transport/mctp-demux.h 290 - pldm_transport_mctp_demux_init() 291 - pldm_transport_mctp_demux_destroy() 292 - pldm_transport_mctp_demux_core() 293 - pldm_transport_mctp_demux_init_pollfd() 294 - pldm_transport_mctp_demux_map_tid() 295 - pldm_transport_mctp_demux_unmap_tid() 296 297### Deprecated 298 2991. All the existing "requester" APIs from `libpldm/pldm.h` (also known as 300 `libpldm/requester/pldm.h`): 301 302 - pldm_open() 303 - pldm_send_recv() 304 - pldm_send() 305 - pldm_recv() 306 - pldm_recv_any() 307 - pldm_close() 308 309 Users should migrate to the newer "transport" APIs instead. 310 311## Fixed 312 3131. tests: Exclude transport tests when build excludes testing ABIs 3142. abi: Capture deprecation of pldm_close() 315 316## [0.6.0] - 2023-08-22 317 318### Changed 319 3201. pdr: Avoid ID overflow in pldm_entity_association_tree_add_entity() 3212. meson: Apply `b_ndebug=if-release` by default 3223. pdr : Stabilize pldm_entity_association_tree_add_entity() 3234. pdr: Stabilise pldm_entity_association_tree_find_with_locality() 3245. pdr: Stabilize pldm_entity_node_get_remote_container_id() 3256. transport: af-mctp: Assign out-params on success in \*\_recv() 3267. transport: Generalise the pldm_transport_recv_msg() API 327 328### Removed 329 3301. pdr: Remove pldm_entity_association_pdr_add() 3312. state-set: Remove enum pldm_state_set_operational_fault_status_values 332 333### Fixed 334 3351. transport: register init_pollfd callback for af-mctp 3362. transport: fix init_pollfd function parameter 3373. transport: Fix doxygen and variables for send and recv functions 3384. transport: af-mctp: Ensure malloc() succeeds in \*\_recv() 339 340## [0.5.0] - 2023-08-09 341 342### Added 343 3441. pdr: Introduce pldm_entity_association_pdr_add_check() 345 346### Changed 347 3481. pdr: Allow record_handle to be NULL for pldm_pdr_add_check() 3492. transport: pldm_transport_poll(): Adjust return value semantics 3503. transport: free un-wanted responses in pldm_transport_send_recv_msg() 351 352### Deprecated 353 3541. state-set: Enum pldm_state_set_operational_fault_status_values 355 356 The enum operational_fault_status is defined with wrong members and will 357 eventually be replaced with the correct members. Any uses of 358 pldm_state_set_operational_fault_status_values members should move to 359 equivalent pldm_state_set_operational_stress_status_values members if needed. 360 3612. platform: Struct field name in fru_record_set PDR 362 363 References to entity_instance_num should be changed to entity_instance 364 3653. platform: Struct field name in numeric sensor value PDR 366 367 References to entity_instance_num should be changed to entity_instance 368 369### Removed 370 3711. bios_table: Remove pldm_bios_table_attr_entry_integer_encode_length() 3722. bios_table: Remove pldm_bios_table_attr_value_entry_encode_enum() 3733. bios_table: Remove pldm_bios_table_attr_value_entry_encode_string() 3744. bios_table: Remove pldm_bios_table_attr_value_entry_encode_integer() 3755. bios_table: Remove pldm_bios_table_append_pad_checksum() 3766. fru: Remove get_fru_record_by_option() 3777. pdr: Make is_present() static 3788. pdr: Remove pldm_pdr_add() 3799. pdr: Remove pldm_pdr_add_fru_record_set() 38010. pdr: Remove pldm_entity_association_pdr_add_from_node() 38111. pdr: Make find_entity_ref_in_tree() static 38212. pdr: Make entity_association_tree_find() static 383 384### Fixed 385 3861. requester: Fix response buffer cast in pldm_send_recv() 3872. pdr: Hoist record handle overflow test to avoid memory leak 3883. transport: Correct comparison in while loop condition 389 390## [0.4.0] - 2023-07-14 391 392### Added 393 3941. bios_table: Introduce pldm_bios_table_append_pad_checksum_check() 3952. fru: Introduce get_fru_record_by_option_check() 3963. pdr: Introduce pldm_entity_association_pdr_add_from_node_check() 3974. pdr: Introduce pldm_pdr_add_check() 3985. pdr: Introduce pldm_pdr_add_fru_record_set_check() 399 400### Changed 401 4021. requester: Mark pldm_close() as LIBPLDM_ABI_TESTING 4032. requester: Expose pldm_close() in header 4043. bios_table: pldm_bios_table_string_entry_encode_check(): Handle overflow 4054. bios_table: pldm_bios_table_iter_create(): Return NULL on failed alloc 4065. bios_table: pldm_bios_table_iter_next(): Invalid entry halts iteration 4076. pdr: pldm_pdr_init(): Return NULL on allocation failure 4087. pdr: pldm_pdr_destroy(): Exit early if repo is NULL 4098. pdr: Document preconditions for trivial accessor functions 410 411 A trivial accessor function is one that exposes properties of an object in a 412 way can't result in an error, beyond passing an invalid argument to the 413 function. For APIs meeting this definition we define a precondition that 414 struct pointers must point to valid objects to avoid polluting the function 415 prototypes. The following APIs now have this precondition explicitly defined: 416 417 - pldm_entity_extract() 418 - pldm_entity_get_parent() 419 - pldm_entity_is_exist_parent() 420 - pldm_entity_is_node_parent() 421 - pldm_is_current_parent_child 422 - pldm_is_empty_entity_assoc_tree() 423 - pldm_pdr_get_record_count() 424 - pldm_pdr_get_record_handle() 425 - pldm_pdr_get_repo_size() 426 - pldm_pdr_record_is_remote() 427 4289. pdr: pldm_entity_node_get_remote_container_id() is a trivial accessor 42910. pdr: pldm_pdr_fru_record_set_find_by_rsi(): Exit early on NULL arguments 43011. pdr: pldm_entity_association_tree_init(): Return NULL on failed alloc 43112. pdr: pldm_entity_association_tree_visit(): Document preconditions 43213. pdr: pldm_entity_association_tree_visit(): Exit early on failure 43314. pdr: pldm_entity_association_tree_destroy(): Exit early on bad argument 43415. pdr: pldm_entity_get_num_children(): Return zero for invalid arguments 43516. pdr: pldm_is_current_parent_child(): Return false for invalid arguments 43617. pdr: pldm_entity_association_pdr_add(): Exit early on bad arguments 43718. pdr: pldm_find_entity_ref_in_tree(): Exit early on bad arguments 43819. pdr: pldm_entity_association_tree_find(): Early exit on bad arguments 43920. pdr: pldm_entity_association_tree_destroy_root(): Exit early on bad arg 44021. pdr: pldm_entity_association_pdr_extract(): Early exit on bad arguments 44122. pdr: pldm_entity_association_pdr_extract(): Assign out params at exit 44223. pdr: pldm_entity_get_num_children(): Don't return invalid values 44324. libpldm: Lift or remove asserts where a subsequent check exists 444 445### Deprecated 446 4471. pldm_bios_table_attr_entry_integer_encode() 448 449 Migrate to pldm_bios_table_attr_entry_integer_encode_check() 450 4512. bios_table: Deprecate pldm_bios_table_attr_value_entry_encode_enum() 452 453 Migrate to pldm_bios_table_attr_value_entry_encode_enum_check() 454 4553. bios_table: Deprecate pldm_bios_table_attr_value_entry_encode_string() 456 457 Migrate to pldm_bios_table_attr_value_entry_encode_string_check() 458 4594. bios_table: Deprecate pldm_bios_table_attr_value_entry_encode_integer() 460 461 Migrate to pldm_bios_table_attr_value_entry_encode_integer_check() 462 4635. pdr: Deprecate is_present() 464 465 There should be no users of this symbol. If you are a user, you should figure 466 out how to stop, or get in touch. This symbol will be marked static the 467 release after deprecation. 468 4696. pdr: Deprecate find_entity_ref_in_tree() 470 471 There should be no users of this symbol. If you are a user, you should figure 472 out how to stop, or get in touch. This symbol will be marked static the 473 release after deprecation. 474 4757. pdr: Deprecate entity_association_tree_find() 476 477 There should be no users of this symbol. If you are a user, you should figure 478 out how to stop, or get in touch. This symbol will be marked static the 479 release after deprecation. 480 4818. bios_table: Stabilise pldm_bios_table_append_pad_checksum_check() 482 483 pldm_bios_table_append_pad_checksum() is deprecated by this change. Users of 484 pldm_bios_table_append_pad_checksum() should migrate to 485 pldm_bios_table_append_pad_checksum_check() 486 4879. fru: Stabilise get_fru_record_by_option_check() 488 489 get_fru_record_by_option() is deprecated by this change. Users of 490 get_fru_record_by_option() should migrate to get_fru_record_by_option_check() 491 49210. pdr: Stabilise pldm_entity_association_pdr_add_from_node_check() 493 494 pldm_entity_association_pdr_add_from_node() is deprecated by this change. 495 Users of pldm_entity_association_pdr_add_from_node() should migrate to 496 pldm_entity_association_pdr_add_from_node_check() 497 49811. pdr: Stabilise pldm_pdr_add_check() 499 500 pldm_pdr_add() is deprecated by this change. Users of pldm_pdr_add() should 501 migrate to pldm_pdr_add_check() 502 50312. pdr: Stabilise pldm_pdr_add_fru_record_set_check() 504 505 pldm_pdr_add_fru_record_set() is deprecated by this change. Users of 506 pldm_pdr_add_fru_record_set() should migrate to 507 pldm_pdr_add_fru_record_set_check() 508 509### Removed 510 5111. bios_table: Remove deprecated APIs sanitized by assert(): 512 513 - pldm_bios_table_string_entry_encode() 514 - pldm_bios_table_string_entry_decode_string() 515 - pldm_bios_table_attr_entry_enum_encode() 516 - pldm_bios_table_attr_entry_enum_decode_pv_num() 517 - pldm_bios_table_attr_entry_enum_decode_def_num() 518 - pldm_bios_table_attr_entry_enum_decode_pv_hdls() 519 - pldm_bios_table_attr_entry_string_encode() 520 - pldm_bios_table_attr_entry_string_decode_def_string_length() 521 522### Fixed 523 5241. pdr: Return success for pldm_pdr_find_child_container_id_range_exclude() API 5252. pdr: Rework pldm_pdr_find_container_id_range_exclude() API 5263. transport: mctp-demux: Don't test socket for non-zero value 5274. requester: Return PLDM_REQUESTER_OPEN_FAIL from pldm_open() on error 5285. pdr: pldm_pdr_fru_record_set_find_by_rsi(): Document reality of return 5296. transport: Fix possible NULL ptr deref in pldm_socket_sndbuf_init() 5307. abi: Update to remove pldm_close() from reference dumps 5318. bios_table: Annotate pldm_bios_table_attr_value_entry_encode_integer() 532 533## [0.3.0] - 2023-06-23 534 535### Added 536 5371. Add encode/decode pldmMessagePollEvent data 5382. README: Add a section on working with libpldm 5393. pdr: Introduce remote_container_id and associated APIs 5404. pdr: Add APIs for creating and locating remote PDRs 5415. pdr: Add pldm_pdr_find_last_in_range() 5426. pdr: Add pldm_entity_association_pdr_add_from_node_with_record_handle() 5437. pdr: Add pldm_pdr_find_container_id_range_exclude() 544 545### Changed 546 5471. include: Move installed transport.h under libpldm/ 5482. libpldm: Explicit deprecated, stable and testing ABI classes 5493. meson: Reduce strength of oem-ibm requirements from enabled to allowed 550 551 The `oem-ibm` feature is now enabled by the default meson configuration, for 552 CI purposes. `oem-ibm` is still disabled by default in the `libpldm` bitbake 553 recipe: 554 555 <https://github.com/openbmc/openbmc/blob/master/meta-phosphor/recipes-phosphor/libpldm/libpldm_git.bb#L10> 556 557 To disable `oem-ibm` in your development builds, pass `-Doem-ibm=disabled` 558 when invoking `meson setup` 559 5604. bios_table: Relax pldm_bios_table_string_entry_decode_string_check() 5615. bios_table: Relax pldm_bios_table_attr_entry_enum_decode_pv_hdls_check() 562 563### Deprecated 564 5651. bios_table: Deprecate APIs with arguments sanitized using assert() 566 567 C provides enough foot-guns without us encoding them into library APIs. 568 Specifically, deprecate the following in favour of their `*_check()` variants 569 which ensure assertions won't fail or otherwise invoke UB: 570 571 - pldm_bios_table_string_entry_encode() 572 - pldm_bios_table_string_entry_decode_string() 573 - pldm_bios_table_attr_entry_enum_encode() 574 - pldm_bios_table_attr_entry_enum_decode_pv_num() 575 - pldm_bios_table_attr_entry_enum_decode_def_num() 576 - pldm_bios_table_attr_entry_enum_decode_pv_hdls() 577 - pldm_bios_table_attr_entry_string_encode() 578 - pldm_bios_table_attr_entry_string_decode_def_string_length() 579 580### Removed 581 5821. libpldm: Remove the requester-api option 583 584### Fixed 585 5861. requester: Make pldm_open() return existing fd 5872. transport: Prevent sticking in waiting for response 5883. transport: Match on response in pldm_transport_send_recv_msg() 5894. requester: Add check before accessing hdr in pldm_recv() 5905. bios_table: pldm_bios_table_attr_entry_string_info_check() NULL deref 591