mirror of
https://github.com/cloud-hypervisor/cloud-hypervisor.git
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dce82a34d0
Allow tap interfaces to be configured with an IPv6 address. The change is fairly straightforward: we need to update the API types and CLI parsing to accept either an IPv6 or IPv4 and then match on the IP address type when the tap device is configured. For IPv6 addresses, the netmask (prefix) must be provided at the same time as the address itself (in the SIOCSIFADDR ioctl). They cannot be configured separately. So we remove the separate "set_netmask" function and convert "set_ip_addr" to also accept a netmask. For IPv4 addresses, the IP address and netmask were already always set together, so this should have no functional impact for users of IPv4 addresses. Signed-off-by: Gregory Anders <ganders@cloudflare.com>
69 lines
3.3 KiB
Rust
69 lines
3.3 KiB
Rust
// Copyright TUNTAP, 2017 The Chromium OS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the THIRD-PARTY file.
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//
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// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause
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#![allow(non_upper_case_globals)]
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#![allow(non_camel_case_types)]
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#![allow(non_snake_case)]
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#[macro_use]
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extern crate vmm_sys_util;
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// generated with bindgen /usr/include/linux/if.h --no-unstable-rust
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// --constified-enum '*' --with-derive-default -- -D __UAPI_DEF_IF_IFNAMSIZ -D
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// __UAPI_DEF_IF_NET_DEVICE_FLAGS -D __UAPI_DEF_IF_IFREQ -D __UAPI_DEF_IF_IFMAP
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// Name is "iff" to avoid conflicting with "if" keyword.
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// Generated against Linux 4.11 to include fix "uapi: fix linux/if.h userspace
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// compilation errors".
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// Manual fixup of ifrn_name to be of type c_uchar instead of c_char.
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pub mod iff;
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// generated with bindgen /usr/include/linux/if_tun.h --no-unstable-rust
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// --constified-enum '*' --with-derive-default
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pub mod if_tun;
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// generated with bindgen /usr/include/linux/in.h --no-unstable-rust
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// --constified-enum '*' --with-derive-default
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// Name is "inn" to avoid conflicting with "in" keyword.
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pub mod inn;
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// generated with bindgen /usr/include/linux/ipv6.h --no-layout-tests --constified-enum '*'
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// --allowlist-type 'sockaddr_in6|in6_ifreq'
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pub mod ipv6;
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// generated with bindgen /usr/include/linux/sockios.h --no-unstable-rust
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// --constified-enum '*' --with-derive-default
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pub mod sockios;
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pub use if_tun::{
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sock_fprog, IFF_MULTI_QUEUE, IFF_NO_PI, IFF_TAP, IFF_VNET_HDR, TUN_F_CSUM, TUN_F_TSO4,
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TUN_F_TSO6, TUN_F_TSO_ECN, TUN_F_UFO,
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};
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pub use iff::{ifreq, net_device_flags_IFF_UP, setsockopt, sockaddr, AF_INET};
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pub use inn::sockaddr_in;
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pub use ipv6::{in6_ifreq, sockaddr_in6};
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pub const TUNTAP: ::std::os::raw::c_uint = 84;
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ioctl_iow_nr!(TUNSETNOCSUM, TUNTAP, 200, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETDEBUG, TUNTAP, 201, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETIFF, TUNTAP, 202, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETPERSIST, TUNTAP, 203, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETOWNER, TUNTAP, 204, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETLINK, TUNTAP, 205, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETGROUP, TUNTAP, 206, ::std::os::raw::c_int);
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ioctl_ior_nr!(TUNGETFEATURES, TUNTAP, 207, ::std::os::raw::c_uint);
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ioctl_iow_nr!(TUNSETOFFLOAD, TUNTAP, 208, ::std::os::raw::c_uint);
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ioctl_iow_nr!(TUNSETTXFILTER, TUNTAP, 209, ::std::os::raw::c_uint);
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ioctl_ior_nr!(TUNGETIFF, TUNTAP, 210, ::std::os::raw::c_uint);
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ioctl_ior_nr!(TUNGETSNDBUF, TUNTAP, 211, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETSNDBUF, TUNTAP, 212, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNATTACHFILTER, TUNTAP, 213, sock_fprog);
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ioctl_iow_nr!(TUNDETACHFILTER, TUNTAP, 214, sock_fprog);
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ioctl_ior_nr!(TUNGETVNETHDRSZ, TUNTAP, 215, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETVNETHDRSZ, TUNTAP, 216, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETQUEUE, TUNTAP, 217, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETIFINDEX, TUNTAP, 218, ::std::os::raw::c_uint);
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ioctl_ior_nr!(TUNGETFILTER, TUNTAP, 219, sock_fprog);
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ioctl_iow_nr!(TUNSETVNETLE, TUNTAP, 220, ::std::os::raw::c_int);
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ioctl_ior_nr!(TUNGETVNETLE, TUNTAP, 221, ::std::os::raw::c_int);
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ioctl_iow_nr!(TUNSETVNETBE, TUNTAP, 222, ::std::os::raw::c_int);
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ioctl_ior_nr!(TUNGETVNETBE, TUNTAP, 223, ::std::os::raw::c_int);
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