diff options
Diffstat (limited to 'include/uapi/linux/io_uring')
| -rw-r--r-- | include/uapi/linux/io_uring/bpf_filter.h | 68 | ||||
| -rw-r--r-- | include/uapi/linux/io_uring/query.h | 6 |
2 files changed, 73 insertions, 1 deletions
diff --git a/include/uapi/linux/io_uring/bpf_filter.h b/include/uapi/linux/io_uring/bpf_filter.h new file mode 100644 index 000000000000..1b461d792a7b --- /dev/null +++ b/include/uapi/linux/io_uring/bpf_filter.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */ +/* + * Header file for the io_uring BPF filters. + */ +#ifndef LINUX_IO_URING_BPF_FILTER_H +#define LINUX_IO_URING_BPF_FILTER_H + +#include <linux/types.h> + +/* + * Struct passed to filters. + */ +struct io_uring_bpf_ctx { + __u64 user_data; + __u8 opcode; + __u8 sqe_flags; + __u8 pdu_size; /* size of aux data for filter */ + __u8 pad[5]; + union { + struct { + __u32 family; + __u32 type; + __u32 protocol; + } socket; + struct { + __u64 flags; + __u64 mode; + __u64 resolve; + } open; + }; +}; + +enum { + /* + * If set, any currently unset opcode will have a deny filter attached + */ + IO_URING_BPF_FILTER_DENY_REST = 1, + /* + * If set, if kernel and application don't agree on pdu_size for + * the given opcode, fail the registration of the filter. + */ + IO_URING_BPF_FILTER_SZ_STRICT = 2, +}; + +struct io_uring_bpf_filter { + __u32 opcode; /* io_uring opcode to filter */ + __u32 flags; + __u32 filter_len; /* number of BPF instructions */ + __u8 pdu_size; /* expected pdu size for opcode */ + __u8 resv[3]; + __u64 filter_ptr; /* pointer to BPF filter */ + __u64 resv2[5]; +}; + +enum { + IO_URING_BPF_CMD_FILTER = 1, +}; + +struct io_uring_bpf { + __u16 cmd_type; /* IO_URING_BPF_* values */ + __u16 cmd_flags; /* none so far */ + __u32 resv; + union { + struct io_uring_bpf_filter filter; + }; +}; + +#endif diff --git a/include/uapi/linux/io_uring/query.h b/include/uapi/linux/io_uring/query.h index 2456e6c5ebb5..95500759cc13 100644 --- a/include/uapi/linux/io_uring/query.h +++ b/include/uapi/linux/io_uring/query.h @@ -1,6 +1,9 @@ /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */ /* * Header file for the io_uring query interface. + * + * Copyright (C) 2026 Pavel Begunkov <asml.silence@gmail.com> + * Copyright (C) Meta Platforms, Inc. */ #ifndef LINUX_IO_URING_QUERY_H #define LINUX_IO_URING_QUERY_H @@ -50,7 +53,8 @@ struct io_uring_query_zcrx { __u64 area_flags; /* The number of supported ZCRX_CTRL_* opcodes */ __u32 nr_ctrl_opcodes; - __u32 __resv1; + /* Bitmask of ZCRX_FEATURE_* indicating which features are available */ + __u32 features; /* The refill ring header size */ __u32 rq_hdr_size; /* The alignment for the header */ |