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1639 Commits (c302f8370d34568df513a80036c3c5c44d41dad4)
 

Author SHA1 Message Date
Alessandro Decina 95a24c6f8b perf_map: implement AsRawFd
Alessandro Decina 5d6fe8bdf4 Add IOError variants to PerfMapError and PerfBufferError
Alessandro Decina b9be2f1a9b Make aya::maps::perf_map public
Alessandro Decina 160e0be6d6 Change the suffix of errors from *Failed to *Error
Alessandro Decina d4e282535b bpf, perf_map: make maps usable from multiple threads 
Change PerfMap API so that individual buffers can be read from multiple
threads.

Change the way maps are stored in the `Bpf` struct from RefCell to a
custom RwLock.
Alessandro Decina d7c91efb2d Make online_cpus() util public
Alessandro Decina 2215e202f4 Generate arch specific bindings 
Currently x86_64 and aarch64 are supported
Alessandro Decina 1de392964b Add src/generated/netlink_bindings.rs to repo
Alessandro Decina af8f769b50 Turn the project into a workspace, move code under aya/
Alessandro Decina c110394aaa xdp: add netlink based implementation for kernels < 5.7 
bpf_link_create was introduced in linux 5.7, so use netlink to configure
XDP on older kernels.
Alessandro Decina 9614132724 Implement detaching from socket filters
Alessandro Decina 4bd0cde199 sys: add kernel_version() util to get the running kernel version
Alessandro Decina 8f5a17b542 Rename the syscalls module to sys
Alessandro Decina e83a26b307 probe: sysfs helpers don't need to be public
Alessandro Decina 54637eab04 Improve relocation errors 
Use BpfError::RelocationError for both maps and BTF relocations. The
error includes the name of the program that failed, and the source error
stored as Box<dyn Error>.

This hides the implementation details of the source errors - which are
unrecoverable anyway - while still allowing fine grained error messages.
Alessandro Decina 37c3a198c4 Rework the error hierarchy 
Add BpfError::IO and BpfError::BtfError and remove the nested IO and
BtfError variants inside ParseError and RelocationError
Alessandro Decina 96db24e285 Untangle map relocation from BTF relocation
Alessandro Decina 88d49927c2 btf: rename BtfRelocationError to RelocationError
Alessandro Decina 3b668d9274 Fix some warnings
Alessandro Decina 65d520bbd7 Support non-native endianness
Alessandro Decina 5b8def7b69 Refactor ELF parser a bit and add more tests
Alessandro Decina fd0ba2355d btf: remove object::pod usage
Alessandro Decina 4b65da66ea btf: check array bounds while doing candidate matching
Alessandro Decina b49a627cac btf: implement candidate matching for enums
Alessandro Decina 08d5fa6059 Initial BTF support 
Still missing a couple of things but the bulk is there
Alessandro Decina b75efc8efe bpf: fix loading socket filters from obj files
Alessandro Decina a8c212377f bpf: make program() and program_mut() return inner program types 
program() and program_mut() are now generic and can return the inner
program type, which is what you want 99.999% of the time, eg:

    let prog = bpf.program_mut::<&mut Xdp>("foo")?.unwrap();
    prog.load()?;
    prog.attach("eth0")?;

The methods will fail if the requested program is not of the expected
type (eg if you try to retrieve a kprobe as an xdp program).
Alessandro Decina 4dc01f64dd bpf: make map() and map_mut() optionally return concrete map types 
map() and map_mut() used to return Ref<Map>, then to convert to a concrete
type you had to:

    let mut perf_map: PerfMap<_> = bpf.map_mut("PERF_MAP").unwrap().try_into()?;;

But the base Map type is pretty much only useful internally. This change
makes map() and map_mut() use TryInto internally, so that now
conversions can can be done with:

    let mut perf_map: PerfMap<_> = bpf.map_mut("PERF_MAP")?.unwrap();
Alessandro Decina a41edbca2c maps: add ProgramArray 
ProgramArray is a wrapper around BPF_MAP_TYPE_PROG_ARRAY maps. Can be
used to setup jump tables for bpf_tail_call().
Alessandro Decina f7cdd2e059 maps: move maps inside RefCells
Alessandro Decina 77fa7d857c syscalls: add Pod bound on keys
Alessandro Decina 83f57447dc maps: move MapsIter/MapsKeys from hash_map.rs to the parent module
Alessandro Decina 72e43aae1a maps: hash_map: make MapKeys and MapIter generic 
Introduce IterableMap trait and make MapKeys/MapIter use that.
Alessandro Decina 70fab20193 maps: hash map: remove Clone bound
Alessandro Decina b0b83cbd8c Use own Pod trait
Alessandro Decina 561b0015bb programs: xdp: support detaching with FdLink
Alessandro Decina 0f0bc795e3 programs: add FdLink 
FdLink is a generic Link impl that calls close() on the given fd.
Alessandro Decina 84afa318c8 Formatting fixes
Alessandro Decina 15be301f8c Initial commit