#include "../../include/bpf_api.h" /* Cyclic dependency example to test the kernel's runtime upper * bound on loops. Also demonstrates on how to use direct-actions, * loaded as: tc filter add [...] bpf da obj [...] */ #define JMP_MAP_ID 0xabccba BPF_PROG_ARRAY(jmp_tc, JMP_MAP_ID, PIN_OBJECT_NS, 1); __section_tail(JMP_MAP_ID, 0) int cls_loop(struct __sk_buff *skb) { printt("cb: %u\n", skb->cb[0]++); tail_call(skb, &jmp_tc, 0); skb->tc_classid = TC_H_MAKE(1, 42); return TC_ACT_OK; } __section_cls_entry int cls_entry(struct __sk_buff *skb) { tail_call(skb, &jmp_tc, 0); return TC_ACT_SHOT; } BPF_LICENSE("GPL");