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-rw-r--r--io_uring/net.c66
1 files changed, 40 insertions, 26 deletions
diff --git a/io_uring/net.c b/io_uring/net.c
index 32fc3da04e41..6d71748e2c5a 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -70,13 +70,14 @@ struct io_sendzc {
unsigned flags;
unsigned addr_len;
void __user *addr;
+ size_t done_io;
};
#define IO_APOLL_MULTI_POLLED (REQ_F_APOLL_MULTISHOT | REQ_F_POLLED)
int io_shutdown_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- struct io_shutdown *shutdown = io_kiocb_to_cmd(req);
+ struct io_shutdown *shutdown = io_kiocb_to_cmd(req, struct io_shutdown);
if (unlikely(sqe->off || sqe->addr || sqe->rw_flags ||
sqe->buf_index || sqe->splice_fd_in))
@@ -88,7 +89,7 @@ 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)
{
- struct io_shutdown *shutdown = io_kiocb_to_cmd(req);
+ struct io_shutdown *shutdown = io_kiocb_to_cmd(req, struct io_shutdown);
struct socket *sock;
int ret;
@@ -173,7 +174,7 @@ static int io_setup_async_msg(struct io_kiocb *req,
static int io_sendmsg_copy_hdr(struct io_kiocb *req,
struct io_async_msghdr *iomsg)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
iomsg->msg.msg_name = &iomsg->addr;
iomsg->free_iov = iomsg->fast_iov;
@@ -200,7 +201,7 @@ void io_sendmsg_recvmsg_cleanup(struct io_kiocb *req)
int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
if (unlikely(sqe->file_index || sqe->addr2))
return -EINVAL;
@@ -224,7 +225,7 @@ 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)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct io_async_msghdr iomsg, *kmsg;
struct socket *sock;
unsigned flags;
@@ -283,7 +284,7 @@ int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags)
int io_send(struct io_kiocb *req, unsigned int issue_flags)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct msghdr msg;
struct iovec iov;
struct socket *sock;
@@ -357,7 +358,7 @@ static bool io_recvmsg_multishot_overflow(struct io_async_msghdr *iomsg)
static int __io_recvmsg_copy_hdr(struct io_kiocb *req,
struct io_async_msghdr *iomsg)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct user_msghdr msg;
int ret;
@@ -404,7 +405,7 @@ static int __io_recvmsg_copy_hdr(struct io_kiocb *req,
static int __io_compat_recvmsg_copy_hdr(struct io_kiocb *req,
struct io_async_msghdr *iomsg)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct compat_msghdr msg;
struct compat_iovec __user *uiov;
int ret;
@@ -482,7 +483,7 @@ int io_recvmsg_prep_async(struct io_kiocb *req)
int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
if (unlikely(sqe->file_index || sqe->addr2))
return -EINVAL;
@@ -517,7 +518,7 @@ int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
static inline void io_recv_prep_retry(struct io_kiocb *req)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
sr->done_io = 0;
sr->len = 0; /* get from the provided buffer */
@@ -575,12 +576,12 @@ static int io_recvmsg_prep_multishot(struct io_async_msghdr *kmsg,
if (kmsg->controllen) {
unsigned long control = ubuf + hdr - kmsg->controllen;
- kmsg->msg.msg_control_user = (void *) control;
+ kmsg->msg.msg_control_user = (void __user *) control;
kmsg->msg.msg_controllen = kmsg->controllen;
}
sr->buf = *buf; /* stash for later copy */
- *buf = (void *) (ubuf + hdr);
+ *buf = (void __user *) (ubuf + hdr);
kmsg->payloadlen = *len = *len - hdr;
return 0;
}
@@ -646,7 +647,7 @@ static int io_recvmsg_multishot(struct socket *sock, struct io_sr_msg *io,
int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct io_async_msghdr iomsg, *kmsg;
struct socket *sock;
unsigned int cflags;
@@ -758,7 +759,7 @@ retry_multishot:
int io_recv(struct io_kiocb *req, unsigned int issue_flags)
{
- struct io_sr_msg *sr = io_kiocb_to_cmd(req);
+ struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct msghdr msg;
struct socket *sock;
struct iovec iov;
@@ -849,7 +850,7 @@ out_free:
int io_sendzc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- struct io_sendzc *zc = io_kiocb_to_cmd(req);
+ struct io_sendzc *zc = io_kiocb_to_cmd(req, struct io_sendzc);
struct io_ring_ctx *ctx = req->ctx;
if (READ_ONCE(sqe->__pad2[0]) || READ_ONCE(sqe->addr3))
@@ -878,6 +879,7 @@ int io_sendzc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
zc->addr = u64_to_user_ptr(READ_ONCE(sqe->addr2));
zc->addr_len = READ_ONCE(sqe->addr_len);
+ zc->done_io = 0;
#ifdef CONFIG_COMPAT
if (req->ctx->compat)
@@ -944,7 +946,7 @@ int io_sendzc(struct io_kiocb *req, unsigned int issue_flags)
{
struct sockaddr_storage address;
struct io_ring_ctx *ctx = req->ctx;
- struct io_sendzc *zc = io_kiocb_to_cmd(req);
+ struct io_sendzc *zc = io_kiocb_to_cmd(req, struct io_sendzc);
struct io_notif_slot *notif_slot;
struct io_kiocb *notif;
struct msghdr msg;
@@ -1012,18 +1014,30 @@ int io_sendzc(struct io_kiocb *req, unsigned int issue_flags)
if (unlikely(ret < min_ret)) {
if (ret == -EAGAIN && (issue_flags & IO_URING_F_NONBLOCK))
return -EAGAIN;
- return ret == -ERESTARTSYS ? -EINTR : ret;
+ if (ret > 0 && io_net_retry(sock, msg.msg_flags)) {
+ zc->len -= ret;
+ zc->buf += ret;
+ zc->done_io += ret;
+ req->flags |= REQ_F_PARTIAL_IO;
+ return -EAGAIN;
+ }
+ if (ret == -ERESTARTSYS)
+ ret = -EINTR;
+ } else if (zc->flags & IORING_RECVSEND_NOTIF_FLUSH) {
+ io_notif_slot_flush_submit(notif_slot, 0);
}
- if (zc->flags & IORING_RECVSEND_NOTIF_FLUSH)
- io_notif_slot_flush_submit(notif_slot, 0);
+ if (ret >= 0)
+ ret += zc->done_io;
+ else if (zc->done_io)
+ ret = zc->done_io;
io_req_set_res(req, ret, 0);
return IOU_OK;
}
int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- struct io_accept *accept = io_kiocb_to_cmd(req);
+ struct io_accept *accept = io_kiocb_to_cmd(req, struct io_accept);
unsigned flags;
if (sqe->len || sqe->buf_index)
@@ -1057,7 +1071,7 @@ 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)
{
struct io_ring_ctx *ctx = req->ctx;
- struct io_accept *accept = io_kiocb_to_cmd(req);
+ struct io_accept *accept = io_kiocb_to_cmd(req, struct io_accept);
bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;
unsigned int file_flags = force_nonblock ? O_NONBLOCK : 0;
bool fixed = !!accept->file_slot;
@@ -1115,7 +1129,7 @@ retry:
int io_socket_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- struct io_socket *sock = io_kiocb_to_cmd(req);
+ struct io_socket *sock = io_kiocb_to_cmd(req, struct io_socket);
if (sqe->addr || sqe->rw_flags || sqe->buf_index)
return -EINVAL;
@@ -1136,7 +1150,7 @@ 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)
{
- struct io_socket *sock = io_kiocb_to_cmd(req);
+ struct io_socket *sock = io_kiocb_to_cmd(req, struct io_socket);
bool fixed = !!sock->file_slot;
struct file *file;
int ret, fd;
@@ -1170,14 +1184,14 @@ int io_socket(struct io_kiocb *req, unsigned int issue_flags)
int io_connect_prep_async(struct io_kiocb *req)
{
struct io_async_connect *io = req->async_data;
- struct io_connect *conn = io_kiocb_to_cmd(req);
+ struct io_connect *conn = io_kiocb_to_cmd(req, struct io_connect);
return move_addr_to_kernel(conn->addr, conn->addr_len, &io->address);
}
int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- struct io_connect *conn = io_kiocb_to_cmd(req);
+ struct io_connect *conn = io_kiocb_to_cmd(req, struct io_connect);
if (sqe->len || sqe->buf_index || sqe->rw_flags || sqe->splice_fd_in)
return -EINVAL;
@@ -1189,7 +1203,7 @@ 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)
{
- struct io_connect *connect = io_kiocb_to_cmd(req);
+ struct io_connect *connect = io_kiocb_to_cmd(req, struct io_connect);
struct io_async_connect __io, *io;
unsigned file_flags;
int ret;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.