// SPDX-License-Identifier: GPL-2.0

#include <linux/net.h>
#include <linux/uio.h>

#include "alloc_cache.h"

struct io_async_msghdr {
#if defined(CONFIG_NET)
	union {
		struct iovec		fast_iov[UIO_FASTIOV];
		struct {
			struct iovec	fast_iov_one;
			__kernel_size_t	controllen;
			int		namelen;
			__kernel_size_t	payloadlen;
		};
		struct io_cache_entry	cache;
	};
	/* points to an allocated iov, if NULL we use fast_iov instead */
	struct iovec			*free_iov;
	struct sockaddr __user		*uaddr;
	struct msghdr			msg;
	struct sockaddr_storage		addr;
#endif
};

#if defined(CONFIG_NET)

struct io_async_connect {
	struct sockaddr_storage		address;
};

int io_shutdown_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_shutdown(struct io_kiocb *req, unsigned int issue_flags);

int io_sendmsg_prep_async(struct io_kiocb *req);
void io_sendmsg_recvmsg_cleanup(struct io_kiocb *req);
int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags);

int io_send(struct io_kiocb *req, unsigned int issue_flags);
int io_sendrecv_prep_async(struct io_kiocb *req);

int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags);
int io_recv(struct io_kiocb *req, unsigned int issue_flags);

void io_sendrecv_fail(struct io_kiocb *req);

int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_accept(struct io_kiocb *req, unsigned int issue_flags);

int io_socket_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_socket(struct io_kiocb *req, unsigned int issue_flags);

int io_connect_prep_async(struct io_kiocb *req);
int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_connect(struct io_kiocb *req, unsigned int issue_flags);

int io_send_zc(struct io_kiocb *req, unsigned int issue_flags);
int io_sendmsg_zc(struct io_kiocb *req, unsigned int issue_flags);
int io_send_zc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
void io_send_zc_cleanup(struct io_kiocb *req);

void io_netmsg_cache_free(struct io_cache_entry *entry);
#else
static inline void io_netmsg_cache_free(struct io_cache_entry *entry)
{
}
#endif