diff options
Diffstat (limited to 'io_uring/uring_cmd.c')
| -rw-r--r-- | io_uring/uring_cmd.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c index 00a5e5621a288..acbc2924ecd21 100644 --- a/io_uring/uring_cmd.c +++ b/io_uring/uring_cmd.c @@ -175,6 +175,8 @@ int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags) issue_flags |= IO_URING_F_SQE128; if (ctx->flags & IORING_SETUP_CQE32) issue_flags |= IO_URING_F_CQE32; + if (ctx->compat) + issue_flags |= IO_URING_F_COMPAT; if (ctx->flags & IORING_SETUP_IOPOLL) { if (!file->f_op->uring_cmd_iopoll) return -EOPNOTSUPP; @@ -212,6 +214,52 @@ int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw, } EXPORT_SYMBOL_GPL(io_uring_cmd_import_fixed); +static inline int io_uring_cmd_getsockopt(struct socket *sock, + struct io_uring_cmd *cmd, + unsigned int issue_flags) +{ + bool compat = !!(issue_flags & IO_URING_F_COMPAT); + int optlen, optname, level, err; + void __user *optval; + + level = READ_ONCE(cmd->sqe->level); + if (level != SOL_SOCKET) + return -EOPNOTSUPP; + + optval = u64_to_user_ptr(READ_ONCE(cmd->sqe->optval)); + optname = READ_ONCE(cmd->sqe->optname); + optlen = READ_ONCE(cmd->sqe->optlen); + + err = do_sock_getsockopt(sock, compat, level, optname, + USER_SOCKPTR(optval), + KERNEL_SOCKPTR(&optlen)); + if (err) + return err; + + /* On success, return optlen */ + return optlen; +} + +static inline int io_uring_cmd_setsockopt(struct socket *sock, + struct io_uring_cmd *cmd, + unsigned int issue_flags) +{ + bool compat = !!(issue_flags & IO_URING_F_COMPAT); + int optname, optlen, level; + void __user *optval; + sockptr_t optval_s; + + optval = u64_to_user_ptr(READ_ONCE(cmd->sqe->optval)); + optname = READ_ONCE(cmd->sqe->optname); + optlen = READ_ONCE(cmd->sqe->optlen); + level = READ_ONCE(cmd->sqe->level); + optval_s = USER_SOCKPTR(optval); + + return do_sock_setsockopt(sock, compat, level, optname, optval_s, + optlen); +} + +#if defined(CONFIG_NET) int io_uring_cmd_sock(struct io_uring_cmd *cmd, unsigned int issue_flags) { struct socket *sock = cmd->file->private_data; @@ -233,8 +281,13 @@ int io_uring_cmd_sock(struct io_uring_cmd *cmd, unsigned int issue_flags) if (ret) return ret; return arg; + case SOCKET_URING_OP_GETSOCKOPT: + return io_uring_cmd_getsockopt(sock, cmd, issue_flags); + case SOCKET_URING_OP_SETSOCKOPT: + return io_uring_cmd_setsockopt(sock, cmd, issue_flags); default: return -EOPNOTSUPP; } } EXPORT_SYMBOL_GPL(io_uring_cmd_sock); +#endif |