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Add support to ctx in runProgram.

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Programs of type raw_tp need the input to be passed in the ctx
instead of the data.

Test: with ag/33648187
Change-Id: I79ac0126d91c9eafd847a0c8709a47a0113a9430
This commit is contained in:
Alessio Cosenza 2025-05-27 15:59:13 +00:00
commit 69a9bbcee0
1 changed files with 14 additions and 9 deletions
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23
bpf/syscall_wrappers/include/BpfSyscallWrappers.h
View file

@ -235,15 +235,20 @@ inline int detachSingleProgram(bpf_attach_type type, const borrowed_fd& prog_fd,
}
// Available in 4.12 and later kernels.
inline int runProgram(const borrowed_fd& prog_fd, const void* data,
const uint32_t data_size) {
return bpf(BPF_PROG_RUN, {
.test = {
.prog_fd = static_cast<__u32>(prog_fd.get()),
.data_size_in = data_size,
.data_in = ptr_to_u64(data),
},
});
inline int runProgram(const borrowed_fd &prog_fd, const void *data,
const uint32_t data_size, const void *ctx = nullptr,
const uint32_t ctx_size = 0) {
return bpf(BPF_PROG_RUN,
{
.test =
{
.prog_fd = static_cast<__u32>(prog_fd.get()),
.data_size_in = data_size,
.data_in = ptr_to_u64(data),
.ctx_size_in = ctx_size,
.ctx_in = ptr_to_u64(ctx),
},
});
}
// BPF_OBJ_GET_INFO_BY_FD requires 4.14+ kernel