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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-07-22 23:17:41 -04:00
899bea8248
This adds custom filtering for IORING_OP_CONNECT, where the target family is always exposed, and (for AF_INET / AF_INET6) port and address are exposed. port and v4_addr are in network byte order so filter authors can compare against on-wire constants. Skip population unless addr_len covers the populated fields, to avoid leaking stale io_async_msghdr data on short connects. Signed-off-by: Shouvik Kar <auxcorelabs@gmail.com> Link: https://patch.msgid.link/20260512110242.26219-1-auxcorelabs@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/net.h>
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#include <linux/uio.h>
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#include <linux/io_uring_types.h>
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#include <uapi/linux/io_uring/bpf_filter.h>
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struct io_async_msghdr {
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#if defined(CONFIG_NET)
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struct iou_vec vec;
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struct_group(clear,
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int namelen;
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struct iovec fast_iov;
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__kernel_size_t controllen;
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__kernel_size_t payloadlen;
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struct sockaddr __user *uaddr;
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struct msghdr msg;
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struct sockaddr_storage addr;
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);
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#else
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struct_group(clear);
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#endif
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};
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#if defined(CONFIG_NET)
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int io_shutdown_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_shutdown(struct io_kiocb *req, unsigned int issue_flags);
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void io_sendmsg_recvmsg_cleanup(struct io_kiocb *req);
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int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags);
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int io_send(struct io_kiocb *req, unsigned int issue_flags);
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int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags);
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int io_recv(struct io_kiocb *req, unsigned int issue_flags);
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void io_sendrecv_fail(struct io_kiocb *req);
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int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_accept(struct io_kiocb *req, unsigned int issue_flags);
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int io_socket_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_socket(struct io_kiocb *req, unsigned int issue_flags);
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void io_socket_bpf_populate(struct io_uring_bpf_ctx *bctx, struct io_kiocb *req);
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void io_connect_bpf_populate(struct io_uring_bpf_ctx *bctx, struct io_kiocb *req);
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int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_connect(struct io_kiocb *req, unsigned int issue_flags);
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int io_sendmsg_zc(struct io_kiocb *req, unsigned int issue_flags);
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int io_send_zc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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void io_send_zc_cleanup(struct io_kiocb *req);
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int io_bind_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_bind(struct io_kiocb *req, unsigned int issue_flags);
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int io_listen_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_listen(struct io_kiocb *req, unsigned int issue_flags);
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void io_netmsg_cache_free(const void *entry);
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#else
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static inline void io_netmsg_cache_free(const void *entry)
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{
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}
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static inline void io_socket_bpf_populate(struct io_uring_bpf_ctx *bctx,
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struct io_kiocb *req)
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{
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}
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static inline void io_connect_bpf_populate(struct io_uring_bpf_ctx *bctx,
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struct io_kiocb *req)
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{
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}
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#endif
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