Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Jiayuan Chen |
206 |
85.48% |
3 |
60.00% |
| Xingwang Xiang |
30 |
12.45% |
1 |
20.00% |
| Jakub Sitnicki |
5 |
2.07% |
1 |
20.00% |
| Total |
241 |
|
5 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_endian.h>
int cork_byte;
int push_start;
int push_end;
int apply_bytes;
int pop_start;
int pop_end;
struct {
__uint(type, BPF_MAP_TYPE_SOCKMAP);
__uint(max_entries, 20);
__type(key, int);
__type(value, int);
} sock_map SEC(".maps");
struct {
__uint(type, BPF_MAP_TYPE_SOCKMAP);
__uint(max_entries, 2);
__type(key, int);
__type(value, int);
} sock_map_verdict SEC(".maps");
SEC("sk_msg")
int prog_sk_policy(struct sk_msg_md *msg)
{
if (cork_byte > 0)
bpf_msg_cork_bytes(msg, cork_byte);
if (push_start > 0 && push_end > 0)
bpf_msg_push_data(msg, push_start, push_end, 0);
if (pop_start >= 0 && pop_end > 0)
bpf_msg_pop_data(msg, pop_start, pop_end, 0);
return SK_PASS;
}
SEC("sk_msg")
int prog_sk_policy_redir(struct sk_msg_md *msg)
{
int two = 2;
bpf_msg_apply_bytes(msg, apply_bytes);
return bpf_msg_redirect_map(msg, &sock_map, two, 0);
}
/*
* Verdict program for the reverse-order TLS/sockmap regression test.
* Returns SK_PASS so tcp_read_skb() drains the receive queue via
* sk_psock_verdict_recv() without calling tcp_eat_skb(), which is
* the precondition for the KTLS strparser frag_list UAF.
*/
SEC("sk_skb/verdict")
int prog_skb_verdict_pass(struct __sk_buff *skb)
{
return SK_PASS;
}
char _license[] SEC("license") = "GPL";