Currently the following prog types don't fall back to bpf_base_func_proto() (instead they have cgroup_base_func_proto which has a limited set of helpers from bpf_base_func_proto): * BPF_PROG_TYPE_CGROUP_DEVICE * BPF_PROG_TYPE_CGROUP_SYSCTL * BPF_PROG_TYPE_CGROUP_SOCKOPT I don't see any specific reason why we shouldn't use bpf_base_func_proto(), every other type of program (except bpf-lirc and, understandably, tracing) use it, so let's fall back to bpf_base_func_proto for those prog types as well. This basically boils down to adding access to the following helpers: * BPF_FUNC_get_prandom_u32 * BPF_FUNC_get_smp_processor_id * BPF_FUNC_get_numa_node_id * BPF_FUNC_tail_call * BPF_FUNC_ktime_get_ns * BPF_FUNC_spin_lock (CAP_SYS_ADMIN) * BPF_FUNC_spin_unlock (CAP_SYS_ADMIN) * BPF_FUNC_jiffies64 (CAP_SYS_ADMIN) I've also added bpf_perf_event_output() because it's really handy for logging and debugging.
Showing the changes to include/linux (1 of 4 files). Show all
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| @@ -1523,6 +1523,7 @@ extern const struct bpf_func_proto bpf_strtoul_proto; · 1522 unmodified lines | ||
| 1523 | 1523 | extern const struct bpf_func_proto bpf_tcp_sock_proto; |
| 1524 | 1524 | extern const struct bpf_func_proto bpf_jiffies64_proto; |
| 1525 | 1525 | extern const struct bpf_func_proto bpf_get_ns_current_pid_tgid_proto; |
| 1526 | +extern const struct bpf_func_proto bpf_event_output_data_proto; | |
| 1526 | 1527 | |
| 1527 | 1528 | const struct bpf_func_proto *bpf_tracing_func_proto( |
| 1528 | 1529 | enum bpf_func_id func_id, const struct bpf_prog *prog); |