Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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at master 33 lines 509 B view raw
1// SPDX-License-Identifier: GPL-2.0 2 3#include <vmlinux.h> 4#include <bpf/bpf_helpers.h> 5 6SEC("?freplace") 7long changes_pkt_data(struct __sk_buff *sk) 8{ 9 return bpf_skb_pull_data(sk, 0); 10} 11 12SEC("?freplace") 13long does_not_change_pkt_data(struct __sk_buff *sk) 14{ 15 return 0; 16} 17 18SEC("?freplace") 19long might_sleep(struct pt_regs *ctx) 20{ 21 int i; 22 23 bpf_copy_from_user(&i, sizeof(i), NULL); 24 return i; 25} 26 27SEC("?freplace") 28long does_not_sleep(struct pt_regs *ctx) 29{ 30 return 0; 31} 32 33char _license[] SEC("license") = "GPL";