diff options
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/kern_ioctl.c | 72 | ||||
| -rw-r--r-- | sys/kern/kern_syscall.c | 4 |
2 files changed, 75 insertions, 1 deletions
diff --git a/sys/kern/kern_ioctl.c b/sys/kern/kern_ioctl.c new file mode 100644 index 0000000..4b81983 --- /dev/null +++ b/sys/kern/kern_ioctl.c @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/system.h> +#include <sys/vnode.h> +#include <sys/filedesc.h> +#include <sys/syscall.h> +#include <sys/errno.h> +#include <sys/sched.h> +#include <fs/devfs.h> + +static int +do_ioctl(int fd, uint32_t cmd, uintptr_t arg) +{ + struct proc *td = this_td(); + struct filedesc *filedes; + struct vnode *vp; + struct device *dev; + int status; + + filedes = fd_from_fdnum(td, fd); + + /* Fetch the vnode */ + if (filedes == NULL) + return -EBADF; + if ((vp = filedes->vnode) == NULL) + return -EIO; + + if ((status = devfs_get_dev(vp, &dev)) != 0) + return status; + if (dev->ioctl == NULL) + return -EIO; + + return dev->ioctl(dev, cmd, arg); +} + +/* + * Arg0: Fd. + * Arg1: Cmd. + * Arg2: Arg. + */ +uint64_t +sys_ioctl(struct syscall_args *args) +{ + return do_ioctl(args->arg0, args->arg1, args->arg2); +} diff --git a/sys/kern/kern_syscall.c b/sys/kern/kern_syscall.c index b4a86f3..e892c39 100644 --- a/sys/kern/kern_syscall.c +++ b/sys/kern/kern_syscall.c @@ -32,6 +32,7 @@ #include <sys/cdefs.h> #include <sys/types.h> #include <sys/filedesc.h> +#include <sys/system.h> #include <vm/map.h> __noreturn static uint64_t @@ -49,5 +50,6 @@ uint64_t(*g_syscall_table[__MAX_SYSCALLS])(struct syscall_args *args) = { sys_read, sys_lseek, sys_mmap, - sys_munmap + sys_munmap, + sys_ioctl, }; |