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File libbpf.changes of Package libbpf (Revision 13e3b08497d674e0b1930095b2003620)

Currently displaying revision 13e3b08497d674e0b1930095b2003620 , Show latest

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Tue Jun  4 06:10:48 UTC 2024 - Shung-Hsi Yu <shung-hsi.yu@suse.com>

- update to 1.4.3:
  * Fix libbpf unintentionally dropping FD_CLOEXEC flag when (internally)
    duping FDs

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Sat May 11 07:03:51 UTC 2024 - Fredrik Lönnegren <fredrik.lonnegren@suse.com>

- update to 1.4.2:
  * Another struct_ops-focused bug fix release. It addresses a few more corner
    cases when dealing with SEC("struct_ops") programs.
  * It also improves error messaging around common use case of declaring
    struct_ops BPF program and not referencing it from SEC(".struct_ops")
    variable (backed by struct_ops BPF map).
  * This release should improve overall experience of using BPF struct_ops
    functionality.

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Thu May  2 08:19:03 UTC 2024 - Fredrik Lönnegren <fredrik.lonnegren@suse.com>

- update to 1.4.1:
  * Bug fix release fixing logic around determining whether to autoload
    SEC("struct_ops") programs in cases when old kernel doesn't support some
    optional callbacks and user reset them to NULL from BPF skeleton.

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Wed Apr  3 10:50:11 UTC 2024 - Shung-Hsi Yu <shung-hsi.yu@suse.com>

- update to 1.4.0:
  * support for BPF token throughout low-level and high-level APIs
    (see also LIBBPF_BPF_TOKEN_PATH envvar)
  * struct_ops functionality around handling multi-kernel
    compatibility using BPF CO-RE principles and approaches
  * BPF arena map support
  * support __arena tagged global variables, which are automatically
    put into BPF arena map
  * BPF cookie support for raw tracepoint BPF programs in attach APIs
    loaded or created, respectively
  * add SEC("sk_skb/verdict") support
  * support global subprog argument tagging for for kprobe/uprobe,
    and perf_event BPF program with newly added __arg_ctx,
    __arg_nonnull, __arg_nullable, __arg_trusted, and __arg_arena
    annotations
  * add bpf_core_cast() macro, improving ergonomics of
    bpf_rdonly_cast() BPF helper
  * __long() macro added for specifying 64-bit values when declaring
    BTF-defined maps
  * better GCC-BPF support in BPF CO-RE macros in bpf_core_read.h header
  * show specific error messages when attempting to
    use struct bpf_program/bpf_map instances there were not loaded or
    created
  * fix inner map's max_entries setting logic
  * btf_ext__raw_data() and btf__new_split() APIs are added back
  * ignore DWARF sections in BPF linker sanity checks, improving
    handling of some corner cases
  * fix potential NULL dereference when handling corrupted ELF files.

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Sat Nov 25 09:45:41 UTC 2023 - Dirk Müller <dmueller@suse.com>

- update to 1.3.0:
  * support for `netfilter` programs is added
    `SEC("netfilter")` is now available
  * API function `bpf_program__attach_netfilter()` is now
    available
  * support for `tcx` BPF programs is added:
  * the following new SEC definitions are now available:
    SEC("tc/egress"), SEC("tc/ingress"), SEC("tcx/egress"),
    SEC("tcx/ingress")
  * the following SEC definitions are now considered legacy:
    SEC("tc"), SEC("action"), SEC("classifier")
  * functions `bpf_prog_attach_opts()` and
    `bpf_prog_query_opts()` are extended to work with `tcx`
    programs, plus two new API functions are added:
  * the following new SEC definitions are now available:
    SEC("uprobe.multi"), SEC("uprobe.multi.s"),
    SEC("uretprobe.multi"), SEC("uretprobe.multi.s")
  * support for section `SEC("usdt.s")` is added for sleepable
    `usdt` programs;
  * support for Unix domain socket cgroup BPF programs is added
    the following new SEC definitions are now available:
     SEC("cgroup/connect_unix"),SEC("cgroup/sendmsg_unix"),
     SEC("cgroup/recvmsg_unix"), SEC("cgroup/getpeername_unix"),
     SEC("cgroup/getsockname_unix")
  * new `LIBBPF_OPTS_RESET()` utility macro;
  * new `bpf_object__unpin()` function to complement existing
    `bpf_object__pin()`;
  * new API functions for work with ring buffers
  * uprobe SEC matcher extended to allow golang symbols;
  * uprobe support for symbols versioning;
  * `bpf_map__set_value_size()` can now be used to resize memory
    mapped region for memory mapped maps;
  * `struct bpf_xdp_query_opts` extended with `xdp_zc_max_segs`
    output field;
  * basic BTF sanity check pass added to reject bogus BTF.
  * fix for btf_dump__dump_type_data() when type contains
    bitfields;
  * fix for correct work of offsetof() and container_of() macro
    with CO-RE;
  * no longer attempt to load modules BTF when resolving CO-RE
    relocations if CAP_SYS_ADMIN are absent;
  * regex based function search for "kprobe.multi/" programs no
    longer attempts to trace functions that cannot be traced;
  * bpf_program__set_type() no longer resets sec_def if it is set
    to a custom fallback SEC handler;
  * fix for memory leak possible after
    bpf_program__set_attach_target() call;

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Fri Jul 14 05:04:50 UTC 2023 - Shung-Hsi Yu <shung-hsi.yu@suse.com>

- update to v1.2.2:
  * fix a regression in perf tool caused by libbpf resetting its custom
    catch-all SEC() handler on explicit bpf_program__set_type() call
  * fix possible double-free in USDT-related libbpf code, which happens when
    libbpf runs out of space in __bpf_usdt_specs map due to having too many
    unique USDT specs

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Tue May  2 08:03:30 UTC 2023 - Dirk Müller <dmueller@suse.com>

- update to 1.2.0:
  * completely overhauled "Libbpf overview" landing documentation
    page;
  * support for BPF link-based `struct_ops` programs:
      * `SEC(".struct_ops.link")` annotations;
      * `bpf_map__attach_struct_ops()` attach API;
      * `bpf_link__update_map()` link update API;
  * support sleepable `SEC("struct_ops.s")` programs
  * improved thread-safety of libbpf print callbacks and
    `libbpf_set_print()`
  * improve handling and reporting of missing BPF kfuncs
  * `bpf_{btf,link,map,prog}_get_info_by_fd()` APIs
  * `bpf_xdp_query_opts()` supports fetching XDP/XSK supported
     features;
  * `perf_buffer__new()` allows customizing notification/sampling
    period now;
  * BPF verifier logging improvements:
    * pass-through BPF verifier log level and flags to kernel as
      is
     * support `log_true_size` for getting required log buffer size
       to fit BPF verifier log completely;
     * allow precise control over kprobe/uprobe attach mode: legacy,
       perf-based, link-based.
  * fix legacy kprobe events names sanitization;
  * fix clobbering errno in some cases;
  * fix BPF map's `BPF_F_MMAPABLE` flag sanitization;
  * fix BPF-side USDT support code on s390x architecture;
  * fix `BPF_PROBE_READ{_STR}_INTO()` on s390x architecture;
  * fix kernel version setting for Debian kernels;
  * fix netlink protocol handling in some cases;
  * improve robustness of attaching to legacy kprobes and
    uprobes;
  * fix double-free during static linking empty ELF sections;
  * a bunch of other small fixes here and there.

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Thu Jan  5 07:02:19 UTC 2023 - Shung-Hsi Yu <shung-hsi.yu@suse.com>

- Remove requirement of linux-glibc-devel >= 5.16 for devel package

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Thu Dec 22 07:08:39 UTC 2022 - Dirk Müller <dmueller@suse.com>

- update to v1.1.0:
  User space-side features and APIs:
  * user-space ring buffer (BPF_MAP_TYPE_USER_RINGBUF) support;
  * new documentation page listing all recognized SEC() definitions;
  * BTF dedup improvements:
  * unambiguous fwd declaration resolution for structs and unions;
  * better handling of some corner cases with identical structs and arrays;
  * mixed enum and enum64 forward declaration resolution logic;
  * bpf_{link,btf,pro,mapg}_get_fd_by_id_opts() and bpf_get_fd_by_id_opts()
    APIs;
  * libbpf supports loading raw BTF for BPF CO-RE from known search paths;
  * support for new cgroup local storage (BPF_MAP_TYPE_CGRP_STORAGE);
  * libbpf will only add BPF_F_MMAPABLE flag for data maps with global
    (i.e., non-static) vars;
  * latest Linux UAPI headers with lots of changes synced into
    include/uapi/linux.
  BPF-side features and APIs;
  * BPF_PROG2() macro added that supports struct-by-value arguments;
  * new BPF helpers:
  * bpf_user_ringbuf_drain();
  * cgrp_storage_get() and cgrp_storage_delete().
  Bug fixes
  * better handling of padding corner cases;
  * btf__align_of() determines packed structs better now;
  * improved handling of enums of non-standard sizes;
  * USDT spec parsing improvements;
  * overflow handling fixes for ringbufs;
  * Makefile fixes to support cross-compilation for 32-bit targets;
  * fix crash if SEC("freplace") programs don't have attach_prog_fd set;
  * better handling of file existence checks when running as non-root with
    enhanced capabilities;
  * a bunch of small fixes:
  * ELF handling improvements;
  * fix memory leak in USDT argument parsing logic;
  * fix NULL dereferences in few corner cases;
  * improved netlink attribute iteration handling.
- drop libbpf-Use-elf_getshdrnum-instead-of-e_shnum.patch,
  libbpf-Fix-use-after-free-in-btf_dump_name_dups.patch,
  libbpf-Fix-memory-leak-in-parse_usdt_arg.patch
  libbpf-Fix-null-pointer-dereference-in-find_prog_by_.patch (upstream)

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Tue Nov  8 06:03:55 UTC 2022 - Shung-Hsi Yu <shung-hsi.yu@suse.com>

- Fix out-of-bound heap write (boo#1194248 boo#1194249 CVE-2021-45940 CVE-2021-45941)
  + libbpf-Use-elf_getshdrnum-instead-of-e_shnum.patch
- Fix use-after-free in btf_dump_name_dups (boo#1204391 CVE-2022-3534)
  + libbpf-Fix-use-after-free-in-btf_dump_name_dups.patch
- Fix memory leak in parse_usdt_arg() (boo#1204393 CVE-2022-3533)
  + libbpf-Fix-memory-leak-in-parse_usdt_arg.patch
- Fix null pointer dereference in find_prog_by_sec_insn() (boo#1204502 CVE-2022-3606)
  + libbpf-Fix-null-pointer-dereference-in-find_prog_by_.patch

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Tue Oct  4 17:22:08 UTC 2022 - Dirk Müller <dmueller@suse.com>

- update to 1.0.1:
  * fix inadvertently changed struct bpf_object_open_opts memory layout;
  * fix btf.h header relying on struct enum64 type defined in kernel UAPI headers;
  * fix NULL pointer exception in API btf_dump__dump_type_data;
  * remove struct btf_map_def accidentally left in bpf_helpers.h header.
  * All deprecated APIs and features removed!
  * support for syscall-specific kprobe/kretprobe
    (SEC("ksyscall/<syscall_name>") and SEC("kretsyscall/<syscall_name>"));
  * support for sleepable uprobe BPF programs (SEC("uprobe.s"));
  * support for per-cgroup LSM BPF programs (SEC("lsm_cgroup"));
  * support for new BPF CO-RE relocation TYPE_MATCHES;
  * bpf_prog_load() and bpf_map_create() are now smarter about handling program
    and map name on old kernels (it will be ignored if kernel doesn't support
    names);
  * BTF_KIND_ENUM64 support;
  * increase tracing attachment (kprobe/uprobe/tracepoint) robustness by using
    tracefs or debugfs, whichever is mounted;
  * new APIs for converting BPF enums to their string representation:
  * libbpf_bpf_prog_type_str();
  * libbpf_bpf_map_type_str();
  * libbpf_bpf_link_type_str();
  * libbpf_bpf_attach_type_str();
  * bpf_program__set_autoattach() and bpf_program__autoattach() to allow opting
    out from auto-attaching of BPF program by BPF skeleton;
  * perf_buffer__buffer() API to give access to underlying per-CPU buffer for BPF ringbuf;
  * bpf_obj_get_opts() API for more flexible fetching of BPF kernel objects' information.
- see https://github.com/libbpf/libbpf/releases/tag/v1.0.0 for detailed changelog

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Wed Aug  3 13:55:13 UTC 2022 - Callum Farmer <gmbr3@opensuse.org>

- Update to release 0.8.1:
  * make shared xsk creation network namespace aware

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Thu May 19 03:00:36 UTC 2022 - Shung-Hsi Yu <shung-hsi.yu@suse.com>

- Update to release 0.8.0
  * New features and APIs:
    - support auto-resolution of binaries and shared libraries from PATH, if necessary;
    - support attaching by function names (only by IP was supported before);
    - support attaching to USDTs (SEC("usdt/...") and
      bpf_program__attach_usdt()) with initially supported architectures:
      x86-64 (amd64); x86 (i386); s390x; ARM64 (aarch64); RISC V (riscv);
    - improved BPF verifier log reporting for CO-RE relocation failures (no
      more obscure "invalid func unknown#195896080" errors);
    - auto-adjust BPF ringbuf size according to host kernel's page size requirements;
    - high-level BPF map APIs: bpf_map__lookup_elem(), bpf_map__update_elem(),
      etc that validate key/value buffer sizes;
    - bpf_link_create() can create all bpf_link-based (including raw_tp,
      fentry/fexit, etc), falling back to bpf_raw_tracepoint_open() on old
      kernels transparently;
    - support opting out from auto-loading BPF programs declaratively with
      SEC("?...");
    - support opting out from auto-creation of declarative BPF maps with
      bpf_map__set_autocreate();
    - support multi-kprobes (SEC("kprobe.multi/...") and
      bpf_program__attach_kprobe_multi_opts());
    - support target-less SEC() programs (e.g., SEC("kprobe"), SEC("tp"), etc);
    - support BPF sub-skeletons for "incomplete" BPF object files (requires
      matching bpftool to generate .subskel.h);
    - BPF cookie support for fentry/fexit/fmod_ret BPF programs
      (bpf_program__attach_trace_opts());
    - support for custom SEC() handlers (libbpf_register_prog_handler()).
  * BPF-side API
    - BPF-side USDT APIs. See new usdt.bpf.h header:
      * BPF_USDT() program wrapper macro; bpf_usdt_arg(), bpf_usdt_arg_cnt(),
      * bpf_usdt_cookie() helpers;
    - new bpf_core_field_offset() CO-RE helper and support
      bpf_core_field_size(type, field) forms;
    - barrier() and barrier_var() macros for improving BPF code generation;
    - __kptr and __kptr_ref tags added;
    - ARC architecture support in bpf_tracing.h header;
    - new BPF helpers:
      * bpf_skb_set_tstamp();
      * bpf_ima_file_hash();
      * bpf_kptr_xchg();
      * bpf_map_lookup_percpu_elem().
  * Bug fixes
    - netlink bug fixes;
    - libbpf.pc fixes to support patch releases properly;
    - BPF_MAP_TYPE_PERF_EVENT_ARRAY map auto-pinning fix;
    - minor CO-RE fixes and improvements for some corner cases;
    - various other small fixes and improvements.

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Thu Mar 10 18:28:17 UTC 2022 - Jeff Mahoney <jeffm@suse.com>

- Enable building and packaging of static library.
  Explicitly enable fat LTO objects.

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Mon Mar  7 11:52:14 UTC 2022 - Jan Engelhardt <jengelh@inai.de>

- Python is not used during build; remove it and help break
  a cycle.

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Fri Mar  4 10:18:54 UTC 2022 - Jan Engelhardt <jengelh@inai.de>

- Update to release 0.7.0
  * legacy BPF map definitions (using struct bpf_map_def) are
    deprecated when LIBBPF_STRICT_MAP_DEFINITIONS is passed to
    libbpf_set_strict_mode(). Please use BTF-defined map
    definitions.
  * ability to control and capture BPF verifier log output on
    per-object and per-program level
  * CO-RE support and other improvements for "light skeleton"
  * improved compilation when system BTF UAPI headers are outdated

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Sat Dec 11 10:37:27 UTC 2021 - Jan Engelhardt <jengelh@inai.de>

- Update to release 0.6.1
  * Introduce legacy kprobe events support
  * Add legacy uprobe attaching support
  * Support uniform BTF-defined key/value specification across
    all BPF maps
  * Support kernel module function calls
  * Support detecting and attaching of writable tracepoint
    program
  * Add bloom filter map implementation
  * Add typeless and weak ksym support to gen_loader
  * Add RISC-V (RV64) support to bpf_tracing.h
  * Deprecate AF_XDP support
  * Support BTF_KIND_TYPE_TAG

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Mon Sep 27 11:02:49 UTC 2021 - Shung-Hsi Yu <shung-hsi.yu@suse.com>

- Update to 0.5.0:
  + New features and user-space APIs:
    - libbpf_set_strict_mode() allowing to opt-in into backwards incompatible libbpf-1.0 changes. See "Libbpf: the road to 1.0" and "Libbpf 1.0 migration guide" for more details.
    - streamlined error reporting for low-level APIs, high-level error-returning APIs, and pointer-returning APIs (as a libbpf-1.0 opt-in);
    - "Light" BPF skeleton support;
    - BPF_PROG_TYPE_SYSCALL support;
    - BPF perf link support for kprobe, uprobe, tracepoint, and perf_event BPF programs;
    - BPF cookie support for kprobe, uprobe, tracepoint, and perf_event BPF programs through bpf_program__attach_[ku]probe_opts() APIs;
    - allow to specify ref_ctr_off for USDT semaphores through bpf_program__attach_uprobe_opts() API;
    - btf_custom_path support in bpf_object_open_opts, allowing to specify custom BTF for CO-RE relocations;
    - sk_reuseport/migrate program type support;
    - btf_dump__dump_type_data() API, allowing to dump binary data according to BTF type description;
    - btf__load_into_kernel() and btf__load_from_kernel_by_id(), and split BTF variants of them;
    - btf__load_vmlinux_btf() and btf__load_module_btf() APIs;
    - bpf_map__initial_value() API to get initial value of mmap-ed BPF maps;
    - bpf_map_lookup_and_delete_elem_flags() API.
  + BPF-side APIs and features:
    - support for weak typed __ksym externs;
    - BPF timer helpers: bpf_timer_init(), bpf_timer_set_callback(), bpf_timer_start(), bpf_timer_cancel();
    - bpf_get_attach_cookie() helper to get BPF cookie from BPF program side;
    - bpf_get_func_ip() helper;
    - bpf_sys_bpf() helper;
    - bpf_task_pt_regs() helper;
    - bpf_btf_find_by_name_kind() helper;
    - usability improvements for bpf_tracing.h when target architecture is missing.
  + Bug fixes and compatibility improvements:
    - improve BPF support detection on old Red Hat kernels with backported BPF patches;
    - improvements for LTO builds with GCC 10+;
    - pass NLM_F_EXCL when creating TC qdisc;
    - better support of BPF map reuse on old kernels;
    - fix the bug resulting in sometimes closing FD 0, which wasn't created and owned by libbpf itself.
- Remove patches merged upstream
  + libdir.patch
  + libbpf-Fix-build-with-latest-gcc-binutils-with-LTO.patch

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Fri Aug 27 06:20:53 UTC 2021 - Michal Suchanek <msuchanek@suse.com>

- Fix LTO build (bsc#1188749).
  + libbpf-Fix-build-with-latest-gcc-binutils-with-LTO.patch

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Fri Aug 20 08:47:47 UTC 2021 - Michal Suchanek <msuchanek@suse.com>

- Depend on new enough Linux headers.

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Mon Aug  2 11:00:28 UTC 2021 - Callum Farmer <gmbr3@opensuse.org>

- Create libbpf0-32bit needed by libdwarves1-32bit

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Sat Jul 17 15:38:52 UTC 2021 - Michal Suchanek <msuchanek@suse.com>

- libbpf is now a separate project, stop building from the kernel
  (bsc#1188419 jsc#SLE-17288 jsc#SLE-18805).
- Fix LIBSUBDIR
  + libdir.patch

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Mon Jun  8 23:52:39 UTC 2020 - Michał Rostecki <mrostecki@suse.com>

- Add python3 as a build dependency.

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Sun Feb  2 19:50:55 UTC 2020 - Michał Rostecki <mrostecki@opensuse.org>

- Build libbpf from kernel sources, not from github sources, for
  consistency with bpftool package.

-------------------------------------------------------------------
Tue Jan  7 14:36:44 UTC 2020 - Tomáš Chvátal <tchvatal@suse.com>

- Reflect SUSE CFLAGS
- Do not bother with obscpio if we are fetching direct releases
- Remove patch 0001-makefile-Fix-install-target.patch seems
  to build/install without it just fine
- Update to 0.0.6:
  + New features
    - new extensible bpf_object__open_{file,mem} APIs and
      DECLARE_LIBBPF_OPTS() macro to go with them
    - bpf_helpers.h, bpf_endian.h, and bpf_tracing.h are now
      distributed with libbpf
    - BPF CO-RE: added field size, field existence, and bitfield
      relocation support
    - BPF CO-RE: BPF_CORE_READ(), bpf_core_field_exists(),
      bpf_core_field_size() and other BPF CO-RE related helpers
      available through bpf_core_read.h header
    - bpf_object__open() API now auto-detects program type from
      its section name
    - BPF_PROG_TRACING programs support (incuding BTF-typed raw
      tracepoints, fentry/fexit programs)
    - mmap() support for BPF global variables
    - declarative map pinning support added
    - probe_read_{user,kernel}[_str]() BPF helpers added
    - bpf_get_link_xdp_info() function to get more XDP information
      added
    - a bunch of other AF_XDP changes
  + Usability improvements
    - no need for int version SEC('version') = 1; anymore
    - raw_tp/tp and uprobe/uretprobe section prefixes added
    - new bpf_program__get_{type,expected_attach_type} getters
    - preserve error code on program load failure
  + Fixes
    - btf_dump padding handling
    - bpf_object__name() returning name, not path
    - ELF section handling off-by-one bug fix
    - mem leak/double free fix in BPF program relocation code

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Tue Oct  1 09:15:18 UTC 2019 - Michał Rostecki <mrostecki@opensuse.org>

- Initial release

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File libbpf.changes of Package libbpf (Revision 13e3b08497d674e0b1930095b2003620)

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