From f9379c776e786ca412b32d6f2bcd81015bba47c4 Mon Sep 17 00:00:00 2001 From: Dmitry Vyukov Date: Thu, 6 Jan 2022 18:34:45 +0100 Subject: sys/linux: don't use len/flags/const/proc types in out fields Remove all uses of len/flags/const/proc types in explicitly marked out fields. Use of these types for out fields does not make sense: a len[b, int32] (out) b flags[foo, int32] (out) Since kernel fills these fields, that's unnecessary details or bugs in descriptions. In particular all of these are actually bugs: ioctl$TUNSETQUEUE(fd fd_tun, cmd const[TUNSETQUEUE], arg ptr[in, ifreq_t[flags[tun_queue_flags, int16]]]) ioctl$TUNSETIFF(fd fd_tun, cmd const[TUNSETIFF], arg ptr[in, ifreq_t[flags[tun_setiff_flags, int16]]]) ioctl$SIOCSIFHWADDR(fd fd_tun, cmd const[SIOCSIFHWADDR], arg ptr[in, ifreq_t[mac_addr]]) ioctl$sock_inet_SIOCSIFADDR(fd sock, cmd const[SIOCSIFADDR], arg ptr[inout, ifreq_t[sockaddr_in]]) ioctl$sock_inet_SIOCSIFBRDADDR(fd sock, cmd const[SIOCSIFBRDADDR], arg ptr[inout, ifreq_t[sockaddr_in]]) ioctl$sock_inet_SIOCSIFNETMASK(fd sock, cmd const[SIOCSIFNETMASK], arg ptr[inout, ifreq_t[sockaddr_in]]) ioctl$sock_inet_SIOCSIFDSTADDR(fd sock, cmd const[SIOCSIFDSTADDR], arg ptr[inout, ifreq_t[sockaddr_in]]) ioctl$sock_inet_SIOCSIFPFLAGS(fd sock, cmd const[SIOCSIFPFLAGS], arg ptr[inout, ifreq_t[int32]]) ioctl$SIOCSIFMTU(fd sock_pppl2tp, cmd const[SIOCSIFMTU], arg ptr[in, ifreq_t[int32]]) ioctl$sock_SIOCETHTOOL(fd sock, cmd const[SIOCETHTOOL], arg ptr[inout, ifreq_t[ptr[inout, ethtool_cmd_u]]]) We pretend that we pass in some flags or addresses, but the ifreq field was marked as (out), so we actually did not pass anything in. --- sys/linux/socket_netlink_generic_wireguard.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sys/linux/socket_netlink_generic_wireguard.txt') diff --git a/sys/linux/socket_netlink_generic_wireguard.txt b/sys/linux/socket_netlink_generic_wireguard.txt index c315b9a5b..6de53d1d5 100644 --- a/sys/linux/socket_netlink_generic_wireguard.txt +++ b/sys/linux/socket_netlink_generic_wireguard.txt @@ -22,7 +22,7 @@ sendmsg$WG_CMD_SET_DEVICE(fd sock_nl_generic, msg ptr[in, msghdr_wireguard[WG_CM setsockopt$SO_BINDTODEVICE_wg(fd sock, level const[SOL_SOCKET], optname const[SO_BINDTODEVICE], optval ptr[in, string[wireguard_devname]], optlen len[optval]) -ioctl$ifreq_SIOCGIFINDEX_wireguard(fd sock, cmd const[SIOCGIFINDEX], arg ptr[inout, ifreq_dev_t[wireguard_devname, wireguard_ifindex]]) +ioctl$ifreq_SIOCGIFINDEX_wireguard(fd sock, cmd const[SIOCGIFINDEX], arg ptr[out, ifreq_dev_t[wireguard_devname, wireguard_ifindex]]) device_policy [ WGDEVICE_A_IFINDEX nlattr[WGDEVICE_A_IFINDEX, wireguard_ifindex] -- cgit mrf-deployment