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// SPDX-License-Identifier: GPL-2.0-or-later
/* seitan - Syscall Expressive Interpreter, Transformer and Notifier
*
* cooker/calls/fs.c - Description of known filesystem-related system calls
*
* Copyright 2023 Red Hat GmbH
* Author: Stefano Brivio <sbrivio@redhat.com>
*/
/*
stat ?
fstat ?
lstat ?
lseek ?
fcntl ?
flock ~
fsync
fdatasync
truncate
ftruncate
getdents
getcwd
chdir
fchdir
mkdir
rmdir
rename
creat
link
unlink
symlink
readlink
chmod
fchmod
chown
fchown
fchownat
lchown
umask
mknod
mknodat
mount
umount2
swapon
swapoff
*/
#include <asm-generic/unistd.h>
#include <sys/syscall.h>
#define _GNU_SOURCE
#include <sys/stat.h>
#include <fcntl.h>
#include <linux/limits.h>
#include "../cooker.h"
#include "../calls.h"
static struct num modes[] = {
{ "S_ISUID", S_ISUID },
{ "S_ISGID", S_ISGID },
{ "S_IRWXU", S_IRWXU },
{ "S_IRUSR", S_IRUSR },
{ "S_IWUSR", S_IWUSR },
{ "S_IXUSR", S_IXUSR },
{ "S_IRWXG", S_IRWXG },
{ "S_IRGRP", S_IRGRP },
{ "S_IWGRP", S_IWGRP },
{ "S_IXGRP", S_IXGRP },
{ "S_IRWXO", S_IRWXO },
{ "S_IROTH", S_IROTH },
{ "S_IWOTH", S_IWOTH },
{ "S_IXOTH", S_IXOTH },
{ "S_ISVTX", S_ISVTX },
{ 0 },
};
static struct num types[] = {
{ "S_IFSOCK", S_IFSOCK },
{ "S_IFLNK", S_IFLNK },
{ "S_IFREG", S_IFREG },
{ "S_IFBLK", S_IFBLK },
{ "S_IFDIR", S_IFDIR },
{ "S_IFCHR", S_IFCHR },
{ "S_IFIFO", S_IFIFO },
{ 0 },
};
static struct arg mknod_args[] = {
{ 0,
{
"path", STRING, 0,
0, PATH_MAX,
{ 0 }
}
},
{ 1,
{
"mode", INT, FLAGS | MASK,
0, 0,
{ .d_num = modes },
}
},
{ 1,
{
"type", INT, FLAGS | MASK,
0, 0,
{ .d_num = types },
}
},
{ 2,
{
"major", GNU_DEV_MAJOR, 0,
0, 0,
{ 0 },
}
},
{ 2,
{
"minor", GNU_DEV_MINOR, 0,
0, 0,
{ 0 },
}
},
{ 0 }
};
static struct arg mknodat_args[] = {
/* No dirfd: we only support absolute paths at the moment */
{ 1,
{
"path", STRING, 0,
0, PATH_MAX,
{ 0 }
}
},
{ 2,
{
"mode", INT, FLAGS | MASK,
0, 0,
{ .d_num = modes },
}
},
{ 2,
{
"type", INT, FLAGS | MASK,
0, 0,
{ .d_num = types },
}
},
{ 3,
{
"major", GNU_DEV_MAJOR, 0,
0, 0,
{ 0 },
}
},
{ 3,
{
"minor", GNU_DEV_MINOR, 0,
0, 0,
{ 0 },
}
},
{ 0 }
};
static struct arg chown_args[] = {
{ 0,
{
"path", STRING, 0,
0, PATH_MAX,
{ 0 }
}
},
{ 1,
{
"uid", UID_T, 0,
0, 0,
{ .d_num = modes },
}
},
{ 2,
{
"gid", GID_T, 0,
0, 0,
{ 0 },
}
},
{ 0 }
};
struct call syscalls_fs[] = {
{ __NR_mknod, "mknod", mknod_args },
{ __NR_mknodat, "mknodat", mknodat_args },
{ __NR_chown, "chown", chown_args },
{ __NR_lchown, "lchown", chown_args },
{ 0 },
};
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