networkd: netdev - introduce vtable for netdev kinds

[elogind.git] / src / network / networkd-tuntap.c

diff --git a/src/network/networkd-tuntap.c b/src/network/networkd-tuntap.c
deleted file mode 100644 (file)
index ae2d5c1..0000000
--- a/src/network/networkd-tuntap.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-    This file is part of systemd.
-
-    Copyright 2014 Susant Sahani <susant@redhat.com>
-
-    systemd is free software; you can redistribute it and/or modify it
-    under the terms of the GNU Lesser General Public License as published by
-    the Free Software Foundation; either version 2.1 of the License, or
-    (at your option) any later version.
-
-    systemd is distributed in the hope that it will be useful, but
-    WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-    Lesser General Public License for more details.
-
-    You should have received a copy of the GNU Lesser General Public License
-    along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <sys/ioctl.h>
-#include <net/if.h>
-#include <linux/if_tun.h>
-
-#include "networkd.h"
-
-#define TUN_DEV "/dev/net/tun"
-
-
-static int netdev_fill_tuntap_message(NetDev *netdev, struct ifreq *ifr) {
-
-        assert(netdev);
-        assert(ifr);
-
-        memset(ifr, 0, sizeof(*ifr));
-
-        if (netdev->kind == NETDEV_KIND_TAP)
-                ifr->ifr_flags |= IFF_TAP;
-        else
-                ifr->ifr_flags |= IFF_TUN;
-
-        if (!netdev->packet_info)
-                ifr->ifr_flags |= IFF_NO_PI;
-
-        if (netdev->one_queue)
-                ifr->ifr_flags |= IFF_ONE_QUEUE;
-
-        if (netdev->multi_queue)
-                ifr->ifr_flags |= IFF_MULTI_QUEUE;
-
-        strncpy(ifr->ifr_name, netdev->ifname, IFNAMSIZ-1);
-
-        return 0;
-}
-
-static int netdev_tuntap_add(NetDev *netdev, struct ifreq *ifr) {
-        _cleanup_close_ int fd;
-        const char *user;
-        const char *group;
-        uid_t uid;
-        gid_t gid;
-        int r = 0;
-
-        fd = open(TUN_DEV, O_RDWR);
-        if (fd < 0) {
-                log_error_netdev(netdev,
-                                 "Failed to open tun dev: %s",
-                                 strerror(-r));
-                return r;
-        }
-
-        r = ioctl(fd, TUNSETIFF, ifr);
-        if (r < 0) {
-                log_error_netdev(netdev,
-                                 "TUNSETIFF failed on tun dev: %s",
-                                 strerror(-r));
-                return r;
-        }
-
-        if(netdev->user_name) {
-
-                user = netdev->user_name;
-
-                r = get_user_creds(&user, &uid, NULL, NULL, NULL);
-                if (r < 0) {
-                        log_error("Cannot resolve user name %s: %s",
-                                  netdev->user_name, strerror(-r));
-                        return 0;
-                }
-
-                r = ioctl(fd, TUNSETOWNER, uid);
-                if ( r < 0) {
-                        log_error_netdev(netdev,
-                                         "TUNSETOWNER failed on tun dev: %s",
-                                         strerror(-r));
-                }
-        }
-
-        if(netdev->group_name) {
-
-                group = netdev->group_name;
-
-                r = get_group_creds(&group, &gid);
-                if (r < 0) {
-                        log_error("Cannot resolve group name %s: %s",
-                                  netdev->group_name, strerror(-r));
-                        return 0;
-                }
-
-                r = ioctl(fd, TUNSETGROUP, gid);
-                if( r < 0) {
-                        log_error_netdev(netdev,
-                                         "TUNSETGROUP failed on tun dev: %s",
-                                         strerror(-r));
-                        return r;
-                }
-
-        }
-
-        r = ioctl(fd, TUNSETPERSIST, 1);
-        if (r < 0) {
-                log_error_netdev(netdev,
-                                 "TUNSETPERSIST failed on tun dev: %s",
-                                 strerror(-r));
-                return r;
-        }
-
-        return r;
-}
-
-int netdev_create_tuntap(NetDev *netdev) {
-        struct ifreq ifr;
-        int r;
-
-        assert(netdev);
-        assert(netdev->ifname);
-
-        switch(netdev->kind) {
-        case NETDEV_KIND_TUN:
-        case NETDEV_KIND_TAP:
-                break;
-        default:
-                return -ENOTSUP;
-        }
-
-        r = netdev_fill_tuntap_message(netdev, &ifr);
-        if(r < 0)
-                return r;
-
-        log_debug_netdev(netdev, "Creating tuntap netdev: %s",
-                         netdev_kind_to_string(netdev->kind));
-
-        return netdev_tuntap_add(netdev, &ifr);
-}