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/*
* Copyright (c) 2025 Ian Marco Moffett and L5 engineers
* 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 the project 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/syscall.h>
#include <sys/limits.h>
#include <sys/syslog.h>
#include <sys/mount.h>
#include <sys/errno.h>
#include <sys/types.h>
#include <os/systm.h>
#include <os/filedesc.h>
#include <compat/unix/syscall.h>
/*
* Write syscall
*
* ARG0: (int)fd
* ARG1: (const void *)buf
* ARG2: (size_t)count
*/
scret_t
sys_write(struct syscall_args *scargs)
{
int fd = SCARG(scargs, int, 0);
int error;
const void *buf = SCARG(scargs, const void *, 1);
size_t count = SCARG(scargs, size_t, 2);
char kbuf[1024];
error = copyin(buf, kbuf, MIN(count, sizeof(kbuf)));
if (error < 0) {
printf("sys_write: copyin() bad pointer\n");
return -EFAULT;
}
return write(fd, kbuf, count);
}
/*
* ARG0: Source
* ARG1: Target
* ARG2: Filesystem type
* ARG3: Mountflags
* ARG4: Data
*/
scret_t
sys_mount(struct syscall_args *scargs)
{
struct mount_args args;
char source[NAME_MAX];
char target[NAME_MAX];
char fstype[FSNAME_MAX];
const char *u_source = SCARG(scargs, const char *, 0);
const char *u_target = SCARG(scargs, const char *, 1);
const char *u_fstype = SCARG(scargs, const char *, 2);
unsigned long u_mountflags = SCARG(scargs, unsigned long, 3);
int error;
/* Get the filesystem source */
error = copyinstr(u_source, source, sizeof(source));
if (error < 0) {
source[0] = '\0';
}
/* Get the filesystem target */
error = copyinstr(u_target, target, sizeof(target));
if (error < 0) {
return error;
}
/* Get the filesystem type */
error = copyinstr(u_fstype, fstype, sizeof(u_fstype));
if (error < 0) {
return error;
}
args.source = source;
args.target = target;
args.fstype = fstype;
return kmount(&args, u_mountflags);
}
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