linux-stable/io_uring/net.h
Breno Leitao e1fe7ee885 io_uring: Add KASAN support for alloc_caches
Add support for KASAN in the alloc_caches (apoll and netmsg_cache).
Thus, if something touches the unused caches, it will raise a KASAN
warning/exception.

It poisons the object when the object is put to the cache, and unpoisons
it when the object is gotten or freed.

Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/20230223164353.2839177-2-leitao@debian.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-04-03 07:16:14 -06:00

72 lines
2.2 KiB
C

// 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_send_prep_async(struct io_kiocb *req);
int io_recvmsg_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