[libvirt] [PATCH 8/9] LXC: use the new net devices gateway definition

When a gateway is set on a network device, a new default route via this gateway through the devoce will be added in the container. --- src/lxc/lxc_container.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index 62e9d76..4a373cb 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -479,6 +479,33 @@ lxcContainerGetNetDef(virDomainDefPtr vmDef, const char *devName) return NULL; } +static int +lxcContainerAddDefaultRoute(const char *ifname, const char *gateway) +{ + virSocketAddr address; + virSocketAddr network; + + VIR_DEBUG("Adding default route via %s on dev %s", gateway, ifname); + if (virSocketAddrParse(&address, gateway, AF_UNSPEC) < 0) + return -1; + + if (!strchr(gateway, ':')) { + if (virSocketAddrParseIPv4(&network, "0.0.0.0") < 0) + return -1; + } else { + if (virSocketAddrParseIPv6(&network, "::") < 0) + return -1; + } + + if (virNetDevAddRoute(ifname, &network, 0, &address, 0) < 0) { + virReportError(VIR_ERR_SYSTEM_ERROR, + _("Failed adding default route via %s on dev %s"), + gateway, ifname); + return -1; + } + return 0; +} + /** * lxcContainerRenameAndEnableInterfaces: * @nveths: number of interfaces @@ -539,6 +566,15 @@ static int lxcContainerRenameAndEnableInterfaces(virDomainDefPtr vmDef, if (rc < 0) goto error_out; + /* Set the gateways */ + if (netDef->gateway_ipv4 && + lxcContainerAddDefaultRoute(newname, netDef->gateway_ipv4) < 0) + goto error_out; + + if (netDef->gateway_ipv6 && + lxcContainerAddDefaultRoute(newname, netDef->gateway_ipv6) < 0) + goto error_out; + VIR_FREE(newname); } -- 1.8.4.5