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aya-log-ebpf-v0.1.0
aya-log-ebpf-macros-v0.1.0
aya-log-parser-v0.1.13
aya-ebpf-v0.1.0
aya-ebpf-macros-v0.1.0
aya-ebpf-bindings-v0.1.0
aya-ebpf-cty-v0.2.1
aya-log-v0.2.0
aya-log-common-v0.1.14
aya-v0.12.0
aya-obj-v0.1.0
aya-log-common-v0.1.13
aya-log-v0.1.13
aya-log-common-v0.1.11
aya-log-v0.1.11
aya-log-common-v0.1.10
aya-log-v0.1.10
aya-v0.11.0
aya-log-common-v0.1.9
aya-log-v0.1.9
aya-v0.10.7
aya-v0.10.6
aya-log-v0.1.1
aya-v0.10.5
aya-v0.10.4
aya-v0.10.3
aya-v0.10.2
aya-v0.10.1
aya-v0.10.0
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1061 Commits (18b3d75d096e3c90f8c5b2f7292637a3369f96a6)
 

Author SHA1 Message Date
Dave Tucker 0038b43627 Add CI 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
 2 years ago
Dave Tucker c1bb790c0d Add vim/vscode rust-analyzer settings 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
 2 years ago
Dave Tucker 3f0085195f Add rustfmt.toml 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
 2 years ago
Dave Tucker 5789585994 ebpf: Add example 
This ensures that macro expansion works properly and that expanded code
compiles

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
 2 years ago
Dave Tucker 5d82d9a73e Add Tests 
This moves a large chunk of code from ebpf to shared so we can re-use
write_record_header and write_record_message and friends so that we
can write test cases to ensure that logs are properly formatted
given certain input.

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
 2 years ago
Michal Rostecki 628b473e09 ebpf: Ensure the bounds of log buffer 
eBPF verifier rejects programs which are not checking the bounds of the
log buffer before writing any arguments. This change ensures that
written log arguments.

In practice, it means that doing this kind of checks is not going to be
needed in eBPF program code anymore:

33a1aee2ea/echo-ebpf/src/main.rs (L47)

Tested on:

876f8b4551

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
 2 years ago
Michal Rostecki 70b4e68130 common: Bump the buffer size 
1024 is too small for many kernel string limits (i.e. PATH_MAX, which is
4096).

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
 2 years ago
Alessandro Decina bd9a5c8fdf aya-log, aya-log-common: start next development iteration 0.1.10-dev.0 2 years ago
Alessandro Decina 8bc1bbb3ab aya-log, aya-log-common: release version 0.1.9 2 years ago
Alessandro Decina a8d133f6b0 Add cargo-release config 2 years ago
Alessandro Decina d1a0ce51ee xtask: do not release 2 years ago
Alessandro Decina c4d89fa13c aya-log: use stricter version for the aya-log-common dep 2 years ago
Alessandro Decina bdb2750e66 ebpf: inline write_record_header 
This seems to help the verifier keep track of where we're writing into
LOG_BUF
 2 years ago
Michal Rostecki 81befa0661 Update aya to 0.10.7 
Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
 2 years ago
Michal Rostecki ca1fe7e05f Format arguments in userspace 
This change moves away argument formatting from eBPF to the userspace.
eBPF part of aya-log writes unformatted log message and all arguments to
the perf buffer and the userspace part of aya-log is formatting the
message after receiving all arguments.

Aya-based project to test this change:

https://github.com/vadorovsky/aya-log-example

Fixes: #4
Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
Signed-off-by: Tuetuopay <tuetuopay@me.com>
Co-authored-by: Tuetuopay <tuetuopay@me.com>
 2 years ago
Alessandro Decina 9b229d00e1 Don't recompute the record length 2 years ago
Alessandro Decina 7f8d7057df ebpf: initialize AYA_LOGS with max_entries=0 
This way aya will create one perf buffer for each cpu
 2 years ago
Alessandro Decina 2800454763 Fix clippy warning 2 years ago
Alessandro Decina 8bde15dad7 Add copy of README.md inside aya-log/ 
Needed for crates.io
 2 years ago
Alessandro Decina 5e18a715b2 Add missing manifest fields 2 years ago
Alessandro Decina 31e71f8db5 (cargo-release) version 0.1.1 2 years ago
Alessandro Decina 29955b2287 (cargo-release) version 0.1.1 2 years ago
Alessandro Decina 6d14a16d8e git add .cargo and xtask 2 years ago
Alessandro Decina cced3da5c8 Update to aya 0.10.5 2 years ago
Alessandro Decina 9ab9c80183 Simplify BpfLogger::init 
Make BpfLogger::init(bpf) log using the default logger. Add
BpfLoger::init_with_logger(bpf, logger) for logging using a custom
logger instance.
 2 years ago
Alessandro Decina 2ac433449c Minor tweaks to make the verifier's job easier 2 years ago
Alessandro Decina b14d4bab2f Switch to aya-ufmt 2 years ago
Alessandro Decina 22d8f86fbb Use aya_bpf::maps::PerfEventByteArray to output logs 2 years ago
Alessandro Decina 741957f945 Use aya_log_ebpf::ufmt instead of ::ufmt 2 years ago
Alessandro Decina 0d7ac3eb3e Add ufmt to readme 2 years ago
Alessandro Decina 5df853cfb0 Update readme 2 years ago
Alessandro Decina b29a061bce Initial commit 2 years ago
Alessandro Decina f9588a9daa
Merge pull request #348 from athre0z/printk 
bpf: add `bpf_printk!` helper
 2 years ago
Joel Höner bfb5536f12 bpf: avoid stack-alloc for `fmt` in `bpf_printk!` 2 years ago
Joel Höner da13143c05 bpf: add `bpf_printk!` helper 
The `bpf_printk!` macro is a helper providing a convenient way to invoke the
`bpf_trace_printk` and `bpf_trace_vprintk` BPF helpers. It is implemented as
a macro because it requires variadic arguments.
 2 years ago
Michal Rostecki 6c9d814860
Merge pull request #345 from vadorovsky/bpf-get-current-comm-u8 
bpf: Change the result type of bpf_get_current_comm helper
 2 years ago
Dave Tucker 73ee3cff70
Merge pull request #140 from dave-tucker/btf-maps 
Support Parsing of BTF Maps
 2 years ago
Dave Tucker f976229477 Support BTF Maps 
This commit allows for BTF maps in the .maps ELF section to be parsed.
It reads the necessary information from the BTF section of the ELF file.
While the btf_ids of Keys and Values types are stored, they are not (yet)
used.

When creating a BTF map, we pass the btf_key_type_id and
btf_value_type_id.

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
 2 years ago
Michal Rostecki 480f6180f5
Merge pull request #346 from vadorovsky/skb-load-bytes 
bpf: Add `load_bytes` method to SKB context
 2 years ago
Michal Rostecki c6e1d56684 bpf: Add `load_bytes` method to SKB context 
This new method allows to load bytes into the given bytes slice, not
requiring to alloate the memory on stack. It can be used with
PerCpuArrays.

Example:

https://github.com/vadorovsky/aya-examples/blob/main/tc-bytes/tc-bytes-ebpf/src/main.rs

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
 2 years ago
Michal Rostecki f08bb022f7
Merge pull request #347 from vadorovsky/fix-lint 
bpf: Use `then_some` instead of `then(|| [...])`
 2 years ago
Michal Rostecki ee15fbbbc5 bpf: Use `then_some` instead of `then(|| [...])` 
This change fixes the `unnecessary_lazy_evaluations` clippy warning.

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
 2 years ago
Michal Rostecki a3a96b8415 bpf: Change the result type of bpf_get_current_comm helper 
Change it from `[i8; 16]` to `[u8; 18]`. `i8` arrays cannot be easily used in
Rust for converting to string (i.e. with `core::str::from_utf8_unchecked`)
and developers have to convert them themselves with unsafe code.

Using u8 arrays lets developers to just convert it with
`core::str::from_utf8_unchecked` without any limitations.

Example:

https://github.com/vadorovsky/aya-examples/blob/main/clone/clone-ebpf/src/main.rs

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
 2 years ago
Alessandro Decina 6f301ac9ca
Merge pull request #284 from vadorovsky/str 
bpf(helpers): Add *_str_bytes helpers
 2 years ago
Alessandro Decina fa4347aae4
Merge pull request #344 from vadorovsky/rlimit-v2 
aya: Raise the RLIMIT_MEMLOCK warning only if failed to create a map
 2 years ago
Michal Rostecki 3d592d0f29 aya: Raise the RLIMIT_MEMLOCK warning only if failed to create a map 
Also, mention that setting the RLIMIT_MEMLOCK to a higher value is an
option.

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
 2 years ago
Dave Tucker a7fa938f1e
Merge pull request #342 from vadorovsky/rlimit 
aya: Raise the warning when RMILIT_MEMLOCK is not RLIM_INFINITY
 2 years ago
Michal Rostecki bebe98e670 aya: Raise the warning when RMILIT_MEMLOCK is not RLIM_INFINITY 
Kernels before 5.11 don't use cgroup accounting, so they might reach the
RLIMIT_MEMLOCK when creating maps. After this change, we raise a warning
recommending to raise the RLIMIT_MEMLOCK.
 2 years ago
Dave Tucker 555833a79a
Merge pull request #335 from dave-tucker/rust-runner 
test: Replace RTF with Rust
 2 years ago
Dave Tucker 79101e748a test: Replace RTF with Rust 
This commit replaces the existing RTF test runner with a simple rust
binary package called - integration-test.

integration-test depends on integration-ebpf, which contains test eBPF
code written in Rust and C. `cargo xtask build-integration-test-ebpf`
can be used to build this code and supress rust-analyzer warnings. It
does require `bpf-linker`, but that is highly likely to be available to
developers of Aya. It also requires a checkout of `libbpf` to extract
headers like bpf-helpers.h.

Since everything is compiled into a single binary, it can be run
be run locally using `cargo xtask integration-test` or remotely using
`./run.sh` which re-uses the bash script from the old test framework
to spawn a VM in which to run the tests.

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
 2 years ago