int zfsfuse_ioctl(int fd, int32_t request, void *arg)
{
printf("zfsfuse_ioctl => gonna crash sooner or later !!!\n");
abort();
zfsfuse_cmd_t cmd;
int ret;
cmd.cmd_type = IOCTL_REQ;
cmd.cmd_u.ioctl_req.cmd = request;
cmd.cmd_u.ioctl_req.arg = (uint64_t)(uintptr_t) arg;
cmd.uid = getuid();
cmd.gid = getgid();
if((ret=write(fd, &cmd, sizeof(zfsfuse_cmd_t)) != sizeof(zfsfuse_cmd_t)))
return -1;
for(;;) {
if(zfsfuse_ioctl_read_loop(fd, &cmd, sizeof(zfsfuse_cmd_t)) != 0)
return -1;
switch(cmd.cmd_type) {
case IOCTL_ANS:
errno = cmd.cmd_u.ioctl_ans_ret;
return errno;
case COPYIN_REQ:
if((ret=write(fd, (void *)(uintptr_t) cmd.cmd_u.copy_req.ptr, cmd.cmd_u.copy_req.size) != cmd.cmd_u.copy_req.size))
return -1;
break;
case COPYINSTR_REQ: ;
zfsfuse_cmd_t ans = { 0 };
ans.cmd_type = COPYINSTR_ANS;
size_t length = strlen((char *)(uintptr_t) cmd.cmd_u.copy_req.ptr);
if(length >= cmd.cmd_u.copy_req.size) {
ans.cmd_u.copy_ans.ret = ENAMETOOLONG;
ans.cmd_u.copy_ans.lencopied = cmd.cmd_u.copy_req.size - 1;
} else
ans.cmd_u.copy_ans.lencopied = length;
if(((ret=write(fd, &ans, sizeof(zfsfuse_cmd_t))) != sizeof(zfsfuse_cmd_t)))
return -1;
if((ret=write(fd, (void *)(uintptr_t) cmd.cmd_u.copy_req.ptr, ans.cmd_u.copy_ans.lencopied)) != ans.cmd_u.copy_ans.lencopied)
return -1;
break;
case COPYOUT_REQ:
if(zfsfuse_ioctl_read_loop(fd, (void *)(uintptr_t) cmd.cmd_u.copy_req.ptr, cmd.cmd_u.copy_req.size) != 0)
return -1;
break;
case GETF_REQ:
if(zfsfuse_sendfd(fd, cmd.cmd_u.getf_req_fd) != 0)
return -1;
break;
default:
abort();
break;
}
}
}
/* If you change this, check _sol_mount in lib/libsolcompat/include/sys/mount.h */
int zfsfuse_mount(libzfs_handle_t *hdl, const char *spec, const char *dir, int mflag, char *fstype, char *dataptr, int datalen, char *optptr, int optlen)
{
assert(dataptr == NULL);
assert(datalen == 0);
assert(mflag == 0);
assert(strcmp(fstype, MNTTYPE_ZFS) == 0);
zfsfuse_cmd_t cmd;
uint32_t speclen = strlen(spec);
uint32_t dirlen = strlen(dir);
int ret;
cmd.cmd_type = MOUNT_REQ;
cmd.cmd_u.mount_req.speclen = speclen;
cmd.cmd_u.mount_req.dirlen = dirlen;
cmd.cmd_u.mount_req.mflag = mflag;
cmd.cmd_u.mount_req.optlen = optlen;
if((ret=write(hdl->libzfs_fd, &cmd, sizeof(zfsfuse_cmd_t))) != sizeof(zfsfuse_cmd_t))
return -1;
if((ret=write(hdl->libzfs_fd, spec, speclen)) != speclen)
return -1;
if((ret=write(hdl->libzfs_fd, dir, dirlen)) != dirlen)
return -1;
if((ret=write(hdl->libzfs_fd, optptr, optlen)) != optlen)
return -1;
uint32_t error;
if(zfsfuse_ioctl_read_loop(hdl->libzfs_fd, &error, sizeof(uint32_t)) != 0)
return -1;
if(error == 0)
return error;
errno = error;
return -1;
}
int zfsfuse_ioctl(int fd, int32_t request, void *arg)
{
zfsfuse_cmd_t cmd;
cmd.cmd_type = IOCTL_REQ;
cmd.cmd_u.ioctl_req.cmd = request;
cmd.cmd_u.ioctl_req.arg = (uint64_t)(uintptr_t) arg;
#ifdef __native_client__
if ( request == ZFS_IOC_POOL_CREATE ){
int ioctl_ret = zfsdev_ioctl(NULL, request, (uintptr_t) cmd.cmd_u.ioctl_req.arg, 0, NULL, NULL);
ASSERT(!ioctl_ret);
}
#else
if(write(fd, &cmd, sizeof(zfsfuse_cmd_t)) != sizeof(zfsfuse_cmd_t))
return -1;
for(;;) {
if(zfsfuse_ioctl_read_loop(fd, &cmd, sizeof(zfsfuse_cmd_t)) != 0)
return -1;
switch(cmd.cmd_type) {
case IOCTL_ANS:
errno = cmd.cmd_u.ioctl_ans_ret;
return errno;
case COPYIN_REQ:
if(write(fd, (void *)(uintptr_t) cmd.cmd_u.copy_req.ptr, cmd.cmd_u.copy_req.size) != cmd.cmd_u.copy_req.size)
return -1;
break;
case COPYINSTR_REQ: ;
zfsfuse_cmd_t ans = { 0 };
ans.cmd_type = COPYINSTR_ANS;
size_t length = strlen((char *)(uintptr_t) cmd.cmd_u.copy_req.ptr);
if(length >= cmd.cmd_u.copy_req.size) {
ans.cmd_u.copy_ans.ret = ENAMETOOLONG;
ans.cmd_u.copy_ans.lencopied = cmd.cmd_u.copy_req.size - 1;
} else
ans.cmd_u.copy_ans.lencopied = length;
if(write(fd, &ans, sizeof(zfsfuse_cmd_t)) != sizeof(zfsfuse_cmd_t))
return -1;
if(write(fd, (void *)(uintptr_t) cmd.cmd_u.copy_req.ptr, ans.cmd_u.copy_ans.lencopied) != ans.cmd_u.copy_ans.lencopied)
return -1;
break;
case COPYOUT_REQ:
if(zfsfuse_ioctl_read_loop(fd, (void *)(uintptr_t) cmd.cmd_u.copy_req.ptr, cmd.cmd_u.copy_req.size) != 0)
return -1;
break;
case GETF_REQ:
if(zfsfuse_sendfd(fd, cmd.cmd_u.getf_req_fd) != 0)
return -1;
break;
default:
abort();
break;
}
}
#endif //__native_client__
}