diff options
Diffstat (limited to 'system-linux.c')
| -rw-r--r-- | system-linux.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/system-linux.c b/system-linux.c index 8a1173c..e0cb5bc 100644 --- a/system-linux.c +++ b/system-linux.c @@ -38,6 +38,7 @@ #include <linux/ip6_tunnel.h> #include <linux/ethtool.h> #include <linux/fib_rules.h> +#include <linux/veth.h> #include <linux/version.h> #ifndef RTN_FAILED_POLICY @@ -1131,6 +1132,66 @@ int system_macvlan_del(struct device *macvlan) return system_link_del(macvlan->ifname); } +int system_veth_add(struct device *veth, struct veth_config *cfg) +{ + struct nl_msg *msg; + struct ifinfomsg empty_iim = {}; + struct nlattr *linkinfo, *data, *veth_info; + int rv; + + msg = nlmsg_alloc_simple(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL); + + if (!msg) + return -1; + + nlmsg_append(msg, &empty_iim, sizeof(empty_iim), 0); + + if (cfg->flags & VETH_OPT_MACADDR) + nla_put(msg, IFLA_ADDRESS, sizeof(cfg->macaddr), cfg->macaddr); + nla_put_string(msg, IFLA_IFNAME, veth->ifname); + + if (!(linkinfo = nla_nest_start(msg, IFLA_LINKINFO))) + goto nla_put_failure; + + nla_put_string(msg, IFLA_INFO_KIND, "veth"); + + if (!(data = nla_nest_start(msg, IFLA_INFO_DATA))) + goto nla_put_failure; + + if (!(veth_info = nla_nest_start(msg, VETH_INFO_PEER))) + goto nla_put_failure; + + nlmsg_append(msg, &empty_iim, sizeof(empty_iim), 0); + + if (cfg->flags & VETH_OPT_PEER_NAME) + nla_put_string(msg, IFLA_IFNAME, cfg->peer_name); + if (cfg->flags & VETH_OPT_PEER_MACADDR) + nla_put(msg, IFLA_ADDRESS, sizeof(cfg->peer_macaddr), cfg->peer_macaddr); + + nla_nest_end(msg, veth_info); + nla_nest_end(msg, data); + nla_nest_end(msg, linkinfo); + + rv = system_rtnl_call(msg); + if (rv) { + if (cfg->flags & VETH_OPT_PEER_NAME) + D(SYSTEM, "Error adding veth '%s' with peer '%s': %d\n", veth->ifname, cfg->peer_name, rv); + else + D(SYSTEM, "Error adding veth '%s': %d\n", veth->ifname, rv); + } + + return rv; + +nla_put_failure: + nlmsg_free(msg); + return -ENOMEM; +} + +int system_veth_del(struct device *veth) +{ + return system_link_del(veth->ifname); +} + static int system_vlan(struct device *dev, int id) { struct vlan_ioctl_args ifr = { |