tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
2#ifndef __MPTCP_BPF_H__
3#define __MPTCP_BPF_H__
4
5#include "bpf_experimental.h"
6
7/* list helpers from include/linux/list.h */
8static inline int list_is_head(const struct list_head *list,
9 const struct list_head *head)
10{
11 return list == head;
12}
13
14#define list_entry(ptr, type, member) \
15 container_of(ptr, type, member)
16
17#define list_first_entry(ptr, type, member) \
18 list_entry((ptr)->next, type, member)
19
20#define list_next_entry(pos, member) \
21 list_entry((pos)->member.next, typeof(*(pos)), member)
22
23#define list_entry_is_head(pos, head, member) \
24 list_is_head(&pos->member, (head))
25
26/* small difference: 'can_loop' has been added in the conditions */
27#define list_for_each_entry(pos, head, member) \
28 for (pos = list_first_entry(head, typeof(*pos), member); \
29 !list_entry_is_head(pos, head, member) && can_loop; \
30 pos = list_next_entry(pos, member))
31
32/* mptcp helpers from protocol.h */
33#define mptcp_for_each_subflow(__msk, __subflow) \
34 list_for_each_entry(__subflow, &((__msk)->conn_list), node)
35
36static __always_inline struct sock *
37mptcp_subflow_tcp_sock(const struct mptcp_subflow_context *subflow)
38{
39 return subflow->tcp_sock;
40}
41
42#endif