Before this change, Aya supported only legacy BPF map definitions, which
are instances of the `bpf_map_def` struct and end up in the `maps` ELF
section.
This change introduces a BTF map definition for arrays, with custom
structs indicating the metadata of the map, which end up in the `.maps`
section.
Co-authored-by: Tamir Duberstein <tamird@gmail.com>
Cached probed for ProgramInfo fields instead of exposing it through
global FEATURE. Probing occurs on cache miss, which happens when first
accessing the field, *and* if the field is 0.
We have previously tried to import traits anonymously where possible but
enforcing this manually was hard.
Since Rust 1.83 clippy can now enforce this for us.
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
In practice this will forbid unused dependencies because we run clippy
with `--deny warnings`.
Workspace lints is a nice place to ratchet up lints through the codebase
all at once and consistently.
This can be done externally. Do so in CI.
This is an attempt to resolve the inconsistency between CI and local
rustfmt in the generated bindings.
Restore running CI on generated branches; the presence of a PR is
apparently not enough.
Change FromRawTracepointArgs::arg to return T rather than *const T which
seems to have been returning a dangling pointer.
Arguably this is not strictly necessary; edition 2024 seems to be
focused on increased strictness around unsafe code which doesn't unlock
new functionality for our users. That said, this work revealed an
apparent bug (see above) that we wouldn't otherwise catch due to
allow-by-default lints.
libbpf commit: d4a841a32b04d69194ab5bdac359a51938a206ce
Files changed:
M aya-obj/src/generated/linux_bindings_aarch64.rs
M aya-obj/src/generated/linux_bindings_armv7.rs
M aya-obj/src/generated/linux_bindings_mips.rs
M aya-obj/src/generated/linux_bindings_powerpc64.rs
M aya-obj/src/generated/linux_bindings_riscv64.rs
M aya-obj/src/generated/linux_bindings_s390x.rs
M aya-obj/src/generated/linux_bindings_x86_64.rs
M xtask/public-api/aya-obj.txt
libbpf commit: d4a841a32b04d69194ab5bdac359a51938a206ce
Files changed:
M aya-obj/src/generated/linux_bindings_aarch64.rs
M aya-obj/src/generated/linux_bindings_armv7.rs
M aya-obj/src/generated/linux_bindings_mips.rs
M aya-obj/src/generated/linux_bindings_powerpc64.rs
M aya-obj/src/generated/linux_bindings_riscv64.rs
M aya-obj/src/generated/linux_bindings_s390x.rs
M aya-obj/src/generated/linux_bindings_x86_64.rs
M xtask/public-api/aya-obj.txt
Update libbpf to 324f3c3846d99c8a1e1384a55591f893f0ae5de4
Files changed:
M aya-obj/src/generated/btf_internal_bindings.rs
M aya-obj/src/generated/linux_bindings_aarch64.rs
M aya-obj/src/generated/linux_bindings_armv7.rs
A aya-obj/src/generated/linux_bindings_mips.rs
M aya-obj/src/generated/linux_bindings_powerpc64.rs
M aya-obj/src/generated/linux_bindings_riscv64.rs
M aya-obj/src/generated/linux_bindings_s390x.rs
M aya-obj/src/generated/linux_bindings_x86_64.rs
M ebpf/aya-ebpf-bindings/src/aarch64/bindings.rs
M ebpf/aya-ebpf-bindings/src/armv7/bindings.rs
A ebpf/aya-ebpf-bindings/src/mips/bindings.rs
A ebpf/aya-ebpf-bindings/src/mips/helpers.rs
M ebpf/aya-ebpf-bindings/src/powerpc64/bindings.rs
M ebpf/aya-ebpf-bindings/src/riscv64/bindings.rs
M ebpf/aya-ebpf-bindings/src/s390x/bindings.rs
M ebpf/aya-ebpf-bindings/src/x86_64/bindings.rs
```
error: manual implementation of `ok`
--> aya/src/util.rs:261:28
|
261 | let addr = match u64::from_str_radix(addr, 16) {
| ____________________________^
262 | | Ok(addr) => Some(addr),
263 | | Err(ParseIntError { .. }) => None,
264 | | }?;
| |_________________^ help: replace with: `u64::from_str_radix(addr, 16).ok()`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_ok_err
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:1705:44
|
1705 | section: ProgramSection::KProbe { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
note: the lint level is defined here
--> aya-obj/src/lib.rs:68:9
|
68 | #![deny(clippy::all, missing_docs)]
| ^^^^^^^^^^^
= note: `#[deny(clippy::unneeded_struct_pattern)]` implied by `#[deny(clippy::all)]`
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:1769:44
|
1769 | section: ProgramSection::KProbe { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:1787:44
|
1787 | section: ProgramSection::KProbe { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:1919:48
|
1919 | section: ProgramSection::KProbe { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2041:52
|
2041 | section: ProgramSection::TracePoint { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2058:52
|
2058 | section: ProgramSection::TracePoint { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2081:54
|
2081 | section: ProgramSection::SocketFilter { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2151:55
|
2151 | section: ProgramSection::RawTracePoint { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2168:55
|
2168 | section: ProgramSection::RawTracePoint { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2243:55
|
2243 | section: ProgramSection::BtfTracePoint { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2266:59
|
2266 | section: ProgramSection::SkSkbStreamParser { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2289:59
|
2289 | section: ProgramSection::SkSkbStreamParser { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2410:58
|
2410 | section: ProgramSection::CgroupSkbIngress { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2433:58
|
2433 | section: ProgramSection::CgroupSkbIngress { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2456:51
|
2456 | section: ProgramSection::CgroupSkb { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: struct pattern is not needed for a unit variant
--> aya-obj/src/obj.rs:2479:51
|
2479 | section: ProgramSection::CgroupSkb { .. },
| ^^^^^^^ help: remove the struct pattern
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_struct_pattern
error: manual implementation of `ok`
--> aya-log-common/src/lib.rs:168:36
|
168 | let wire_len: LogValueLength = match value.len().try_into() {
| ____________________________________^
169 | | Ok(wire_len) => Some(wire_len),
170 | | Err(TryFromIntError { .. }) => None,
171 | | }?;
| |_____^ help: replace with: `value.len().try_into().ok()`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_ok_err
error: manual implementation of `err`
--> init/src/main.rs:141:30
|
141 | .filter_map(|result| match result {
| ______________________________^
142 | | Ok(()) => None,
143 | | Err(err) => Some(err),
144 | | })
| |_________^ help: replace with: `result.err()`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_ok_err
error: manual implementation of `err`
--> xtask/src/public_api.rs:80:30
|
80 | .filter_map(|result| match result {
| ______________________________^
81 | | Ok(()) => None,
82 | | Err(err) => Some(err),
83 | | })
| |_________^ help: replace with: `result.err()`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_ok_err
```
BPF iterators[0] are a way to dump kernel data into user-space and an
alternative to `/proc` filesystem.
This change adds support for BPF iterators on the user-space side. It
provides a possibility to retrieve the outputs of BPF iterator programs
both from sync and async Rust code.
[0] https://docs.kernel.org/bpf/bpf_iterators.html
This removes the fake std module in aya-obj which is no longer needed as
thiserror now properly supports no_std.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
The loader should fill bss maps with zeros according to the size of the
ELF section.
Failure to do so yields weird verifier messages as follows:
```
cannot access ptr member ops with moff 0 in struct bpf_map with off 0 size 4
```
Reference to this in the cilium/ebpf code is here [1].
I could not find a reference in libbpf.
1: d0c8fc1937/elf_reader.go (L1159-L1165)
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Tamir Duberstein
Altug Bozkurt
Michal R
tamird
Tyrone Wu
dave-tucker
Dave Tucker
tamird
dave-tucker
Ishan Jain
Michal Rostecki