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/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
#ifndef __MPTCP_BPF_H__
#define __MPTCP_BPF_H__
#include "bpf_experimental.h"
/* list helpers from include/linux/list.h */
static inline int list_is_head(const struct list_head *list,
const struct list_head *head)
{
return list == head;
}
#define list_entry(ptr, type, member) \
container_of(ptr, type, member)
#define list_first_entry(ptr, type, member) \
list_entry((ptr)->next, type, member)
#define list_next_entry(pos, member) \
list_entry((pos)->member.next, typeof(*(pos)), member)
#define list_entry_is_head(pos, head, member) \
list_is_head(&pos->member, (head))
/* small difference: 'can_loop' has been added in the conditions */
#define list_for_each_entry(pos, head, member) \
for (pos = list_first_entry(head, typeof(*pos), member); \
!list_entry_is_head(pos, head, member) && can_loop; \
pos = list_next_entry(pos, member))
/* mptcp helpers from protocol.h */
#define mptcp_for_each_subflow(__msk, __subflow) \
list_for_each_entry(__subflow, &((__msk)->conn_list), node)
static __always_inline struct sock *
mptcp_subflow_tcp_sock(const struct mptcp_subflow_context *subflow)
{
return subflow->tcp_sock;
}
#endif
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