void oo_os_sock_release(ci_netif* ni, oo_os_file fd)
{
int rc = ci_sys_close(fd);
oo_rwlock_unlock_read(&citp_dup2_lock);
if( rc != 0 )
LOG_E(ci_log("%s: [%d] ci_sys_close returned %d (errno=%d)",
__FUNCTION__, NI_ID(ni), rc, errno));
}
static int fdtable_fd_move(ci_fd_t sock_fd, int op)
{
ci_uint32 io_fd = sock_fd;
int rc;
oo_rwlock_lock_read(&citp_dup2_lock);
rc = oo_resource_op(sock_fd, op, &io_fd);
if( rc != 0 || io_fd == sock_fd ) {
oo_rwlock_unlock_read(&citp_dup2_lock);
return rc;
}
/* Kernel failed to hand over, but there is no epoll here - let's dup */
rc = ci_sys_dup2(io_fd, sock_fd);
ci_tcp_helper_close_no_trampoline(io_fd);
oo_rwlock_unlock_read(&citp_dup2_lock);
if( rc == sock_fd )
return 0;
else if( rc >= 0 )
return -EINVAL;
return rc;
}
void citp_passthrough_init(citp_alien_fdi* epi)
{
int rc = oo_os_sock_get(epi->netif, epi->ep->bufid, &epi->os_socket);
/* No sensible way to handle oo_os_sock_get failure. Just record it. */
if( rc != 0 ) {
Log_U(ci_log("%s: oo_os_sock_get([%d:%d]) returned %d",
__func__, NI_ID(epi->netif), epi->ep->bufid, rc));
epi->os_socket = -1;
return;
}
__citp_fdtable_reserve(epi->os_socket, 1);
/* ci_tcp_helper_get_sock_fd gets the citp_dup2_lock lock: release it */
oo_rwlock_unlock_read(&citp_dup2_lock);
}
int oo_os_sock_get(ci_netif* ni, oo_sp sock_p, oo_os_file* os_sock_out)
{
oo_os_sock_fd_get_t op;
int rc;
oo_rwlock_lock_read(&citp_dup2_lock);
op.sock_id = OO_SP_TO_INT(sock_p);
rc = oo_resource_op(ci_netif_get_driver_handle(ni),
OO_IOC_OS_SOCK_FD_GET, &op);
if( rc == 0 )
*os_sock_out = op.fd_out;
else
oo_rwlock_unlock_read (&citp_dup2_lock);
return rc;
}
int oo_os_sock_sendmsg_raw(ci_netif* ni, oo_sp sock_p,
const struct msghdr* msg, int flags)
{
unsigned long socketcall_args[8];
oo_os_sock_sendmsg_raw_t op;
int rc;
op.sock_id = OO_SP_TO_INT(sock_p);
op.sizeof_ptr = sizeof(void*);
op.flags = flags;
CI_USER_PTR_SET(op.msg, msg);
CI_USER_PTR_SET(op.socketcall_args, socketcall_args);
oo_rwlock_lock_read(&citp_dup2_lock);
rc = oo_resource_op(ci_netif_get_driver_handle(ni),
OO_IOC_OS_SOCK_SENDMSG_RAW, &op);
oo_rwlock_unlock_read (&citp_dup2_lock);
return rc;
}
