static
DECL_CMD_FUNC2(setvxlan_port_range, arg1, arg2)
{
struct ifvxlancmd cmd;
u_long min, max;
if (get_val(arg1, &min) < 0 || min >= UINT16_MAX)
errx(1, "invalid port range minimum: %s", arg1);
if (get_val(arg2, &max) < 0 || max >= UINT16_MAX)
errx(1, "invalid port range maximum: %s", arg2);
if (max < min)
errx(1, "invalid port range");
if (!vxlan_exists(s)) {
params.vxlp_with |= VXLAN_PARAM_WITH_PORT_RANGE;
params.vxlp_min_port = min;
params.vxlp_max_port = max;
return;
}
bzero(&cmd, sizeof(cmd));
cmd.vxlcmd_port_min = min;
cmd.vxlcmd_port_max = max;
if (do_cmd(s, VXLAN_CMD_SET_PORT_RANGE, &cmd, sizeof(cmd), 1) < 0)
err(1, "VXLAN_CMD_SET_PORT_RANGE");
}
void
shutdown_vxlan()
{
red_log(REDD_DEBUG, "Shutting down VXLAN");
if (vxlan_exists() == 0) {
char *add_link_cmd[] = {"ip", "link", "del", server.vxlan_name, 0};
if (run_cmd(add_link_cmd) != 0) {
red_log(REDD_WARNING, "Failed to remove link %s", server.vxlan_name);
}
}
}
int
init_vxlan()
{
/*
* Run the following:
* ip link add vxlan0 type vxlan id 1 group 239.0.0.1 dev eth0
* ip link set vxlan0 up
*/
int retry;
int success = -1;
if (vxlan_exists() != 0) {
char *add_link_cmd[] = {"ip", "link", "add", server.vxlan_name, "type", "vxlan", "id", server.vxlan_vni, "dev", server.vxlan_interface, 0};
for (retry = 0; retry < server.vxlan_max_retries; retry++) {
if ((success = run_cmd(add_link_cmd)) == 0) {
break;
} else {
red_log(REDD_WARNING, "Failed to create link %s", server.vxlan_name);
sleep(1);
red_log(REDD_WARNING, "Retrying to create link %s", server.vxlan_name);
}
}
}
if (success == -1) return -1;
char *set_link_cmd[] = {"ip", "link", "set", server.vxlan_name, "up", 0};
for (retry = 0; retry < server.vxlan_max_retries; retry++) {
if ((success = run_cmd(set_link_cmd)) == 0) {
break;
} else {
red_log(REDD_WARNING, "Failed to set link %s up", server.vxlan_name);
sleep(1);
red_log(REDD_WARNING, "Retrying to set link %s up", server.vxlan_name);
}
}
if (success == -1) return -1;
char *set_route_cmd[] = {"bridge", "fdb", "add", "to", "00:00:00:00:00:00", "dst", server.vxlan_group, "via", server.tun_name, "dev", server.vxlan_name, 0};
for (retry = 0; retry < server.vxlan_max_retries; retry++) {
if ((success = run_cmd(set_route_cmd)) == 0) {
break;
} else {
red_log(REDD_WARNING, "Failed to set route %s", server.vxlan_name);
sleep(1);
red_log(REDD_WARNING, "Retrying to set route %s", server.vxlan_name);
}
}
return success;
}
static
DECL_CMD_FUNC(setvxlan_learn, arg, d)
{
struct ifvxlancmd cmd;
if (!vxlan_exists(s)) {
params.vxlp_with |= VXLAN_PARAM_WITH_LEARN;
params.vxlp_learn = d;
return;
}
bzero(&cmd, sizeof(cmd));
if (d != 0)
cmd.vxlcmd_flags |= VXLAN_CMD_FLAG_LEARN;
if (do_cmd(s, VXLAN_CMD_SET_LEARN, &cmd, sizeof(cmd), 1) < 0)
err(1, "VXLAN_CMD_SET_LEARN");
}
static
DECL_CMD_FUNC(setvxlan_dev, arg, d)
{
struct ifvxlancmd cmd;
if (!vxlan_exists(s)) {
params.vxlp_with |= VXLAN_PARAM_WITH_MULTICAST_IF;
strlcpy(params.vxlp_mc_ifname, arg,
sizeof(params.vxlp_mc_ifname));
return;
}
bzero(&cmd, sizeof(cmd));
strlcpy(cmd.vxlcmd_ifname, arg, sizeof(cmd.vxlcmd_ifname));
if (do_cmd(s, VXLAN_CMD_SET_MULTICAST_IF, &cmd, sizeof(cmd), 1) < 0)
err(1, "VXLAN_CMD_SET_MULTICAST_IF");
}
static
DECL_CMD_FUNC(setvxlan_ttl, arg, d)
{
struct ifvxlancmd cmd;
u_long val;
if (get_val(arg, &val) < 0 || val > 256)
errx(1, "invalid TTL value: %s", arg);
if (!vxlan_exists(s)) {
params.vxlp_with |= VXLAN_PARAM_WITH_TTL;
params.vxlp_ttl = val;
return;
}
bzero(&cmd, sizeof(cmd));
cmd.vxlcmd_ttl = val;
if (do_cmd(s, VXLAN_CMD_SET_TTL, &cmd, sizeof(cmd), 1) < 0)
err(1, "VXLAN_CMD_SET_TTL");
}
static
DECL_CMD_FUNC(setvxlan_maxaddr, arg, d)
{
struct ifvxlancmd cmd;
u_long val;
if (get_val(arg, &val) < 0 || (val & ~0xFFFFFFFF) != 0)
errx(1, "invalid maxaddr value: %s", arg);
if (!vxlan_exists(s)) {
params.vxlp_with |= VXLAN_PARAM_WITH_FTABLE_MAX;
params.vxlp_ftable_max = val & 0xFFFFFFFF;
return;
}
bzero(&cmd, sizeof(cmd));
cmd.vxlcmd_ftable_max = val & 0xFFFFFFFF;
if (do_cmd(s, VXLAN_CMD_SET_FTABLE_MAX, &cmd, sizeof(cmd), 1) < 0)
err(1, "VXLAN_CMD_SET_FTABLE_MAX");
}
static
DECL_CMD_FUNC(setvxlan_remote_port, arg, d)
{
struct ifvxlancmd cmd;
u_long val;
if (get_val(arg, &val) < 0 || val >= UINT16_MAX)
errx(1, "invalid remote port: %s", arg);
if (!vxlan_exists(s)) {
params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_PORT;
params.vxlp_remote_port = val;
return;
}
bzero(&cmd, sizeof(cmd));
cmd.vxlcmd_port = val;
if (do_cmd(s, VXLAN_CMD_SET_REMOTE_PORT, &cmd, sizeof(cmd), 1) < 0)
err(1, "VXLAN_CMD_SET_REMOTE_PORT");
}
static
DECL_CMD_FUNC(setvxlan_vni, arg, d)
{
struct ifvxlancmd cmd;
u_long val;
if (get_val(arg, &val) < 0 || val >= VXLAN_VNI_MAX)
errx(1, "invalid network identifier: %s", arg);
if (!vxlan_exists(s)) {
params.vxlp_with |= VXLAN_PARAM_WITH_VNI;
params.vxlp_vni = val;
return;
}
bzero(&cmd, sizeof(cmd));
cmd.vxlcmd_vni = val;
if (do_cmd(s, VXLAN_CMD_SET_VNI, &cmd, sizeof(cmd), 1) < 0)
err(1, "VXLAN_CMD_SET_VNI");
}
static
DECL_CMD_FUNC(setvxlan_group, addr, d)
{
struct ifvxlancmd cmd;
struct addrinfo *ai;
struct sockaddr *sa;
int error;
bzero(&cmd, sizeof(cmd));
if ((error = getaddrinfo(addr, NULL, NULL, &ai)) != 0)
errx(1, "error in parsing group address string: %s",
gai_strerror(error));
sa = ai->ai_addr;
switch (ai->ai_family) {
#ifdef INET
case AF_INET: {
struct in_addr addr = ((struct sockaddr_in *)sa)->sin_addr;
if (!IN_MULTICAST(ntohl(addr.s_addr)))
errx(1, "group address must be multicast");
cmd.vxlcmd_sa.in4.sin_family = AF_INET;
cmd.vxlcmd_sa.in4.sin_addr = addr;
break;
}
#endif
#ifdef INET6
case AF_INET6: {
struct in6_addr *addr = &((struct sockaddr_in6 *)sa)->sin6_addr;
if (!IN6_IS_ADDR_MULTICAST(addr))
errx(1, "group address must be multicast");
cmd.vxlcmd_sa.in6.sin6_family = AF_INET6;
cmd.vxlcmd_sa.in6.sin6_addr = *addr;
break;
}
#endif
default:
errx(1, "group address %s not supported", addr);
}
freeaddrinfo(ai);
if (!vxlan_exists(s)) {
if (cmd.vxlcmd_sa.sa.sa_family == AF_INET) {
params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR4;
params.vxlp_remote_in4 = cmd.vxlcmd_sa.in4.sin_addr;
} else {
params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR6;
params.vxlp_remote_in6 = cmd.vxlcmd_sa.in6.sin6_addr;
}
return;
}
if (do_cmd(s, VXLAN_CMD_SET_REMOTE_ADDR, &cmd, sizeof(cmd), 1) < 0)
err(1, "VXLAN_CMD_SET_REMOTE_ADDR");
}
