dccca82b1a
log.h really should only include the bare minimum of other headers, as it is really pulled into pretty much everything else and already in itself one of the most basic pieces of code we have. Let's hence drop inclusion of: 1. sd-id128.h because it's entirely unneeded in current log.h 2. errno.h, dito. 3. sys/signalfd.h which we can replace by a simple struct forward declaration 4. process-util.h which was needed for getpid_cached() which we now hide in a funciton log_emergency_level() instead, which nicely abstracts the details away. 5. sys/socket.h which was needed for struct iovec, but a simple struct forward declaration suffices for that too. Ultimately this actually makes our source tree larger (since users of the functionality above must now include it themselves, log.h won't do that for them), but I think it helps to untangle our web of includes a tiny bit. (Background: I'd like to isolate the generic bits of src/basic/ enough so that we can do a git submodule import into casync for it)
114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2014 Susant Sahani <susant@redhat.com>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include <linux/veth.h>
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#include <net/if.h>
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#include "sd-netlink.h"
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#include "netdev/veth.h"
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static int netdev_veth_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) {
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Veth *v;
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int r;
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assert(netdev);
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assert(!link);
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assert(m);
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v = VETH(netdev);
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assert(v);
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r = sd_netlink_message_open_container(m, VETH_INFO_PEER);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append VETH_INFO_PEER attribute: %m");
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if (v->ifname_peer) {
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r = sd_netlink_message_append_string(m, IFLA_IFNAME, v->ifname_peer);
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if (r < 0)
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return log_error_errno(r, "Failed to add netlink interface name: %m");
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}
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if (v->mac_peer) {
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r = sd_netlink_message_append_ether_addr(m, IFLA_ADDRESS, v->mac_peer);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append IFLA_ADDRESS attribute: %m");
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}
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r = sd_netlink_message_close_container(m);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m");
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return r;
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}
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static int netdev_veth_verify(NetDev *netdev, const char *filename) {
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Veth *v;
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int r;
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assert(netdev);
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assert(filename);
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v = VETH(netdev);
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assert(v);
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if (!v->ifname_peer) {
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log_warning("Veth NetDev without peer name configured in %s. Ignoring",
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filename);
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return -EINVAL;
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}
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if (!v->mac_peer) {
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r = netdev_get_mac(v->ifname_peer, &v->mac_peer);
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if (r < 0) {
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log_warning("Failed to generate predictable MAC address for %s. Ignoring",
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v->ifname_peer);
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return -EINVAL;
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}
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}
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return 0;
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}
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static void veth_done(NetDev *n) {
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Veth *v;
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assert(n);
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v = VETH(n);
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assert(v);
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free(v->ifname_peer);
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free(v->mac_peer);
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}
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const NetDevVTable veth_vtable = {
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.object_size = sizeof(Veth),
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.sections = "Match\0NetDev\0Peer\0",
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.done = veth_done,
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.fill_message_create = netdev_veth_fill_message_create,
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.create_type = NETDEV_CREATE_INDEPENDENT,
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.config_verify = netdev_veth_verify,
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};
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