Commit a5494df2 authored by Stephen Hemminger's avatar Stephen Hemminger

vxlan support

parent 27bca615
......@@ -270,6 +270,22 @@ enum macvlan_mode {
#define MACVLAN_FLAG_NOPROMISC 1
/* VXLAN section */
enum {
IFLA_VXLAN_UNSPEC,
IFLA_VXLAN_ID,
IFLA_VXLAN_GROUP,
IFLA_VXLAN_LINK,
IFLA_VXLAN_LOCAL,
IFLA_VXLAN_TTL,
IFLA_VXLAN_TOS,
IFLA_VXLAN_LEARNING,
IFLA_VXLAN_AGEING,
IFLA_VXLAN_LIMIT,
__IFLA_VXLAN_MAX
};
#define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1)
/* SR-IOV virtual function management section */
enum {
......@@ -384,4 +400,15 @@ struct ifla_port_vsi {
__u8 pad[3];
};
/* IPoIB section */
enum {
IFLA_IPOIB_UNSPEC,
IFLA_IPOIB_PKEY,
__IFLA_IPOIB_MAX
};
#define IFLA_IPOIB_MAX (__IFLA_IPOIB_MAX - 1)
#endif /* _LINUX_IF_LINK_H */
......@@ -3,7 +3,8 @@ IPOBJ=ip.o ipaddress.o ipaddrlabel.o iproute.o iprule.o ipnetns.o \
ipmaddr.o ipmonitor.o ipmroute.o ipprefix.o iptuntap.o \
ipxfrm.o xfrm_state.o xfrm_policy.o xfrm_monitor.o \
iplink_vlan.o link_veth.o link_gre.o iplink_can.o \
iplink_macvlan.o iplink_macvtap.o ipl2tp.o link_vti.o
iplink_macvlan.o iplink_macvtap.o ipl2tp.o link_vti.o \
iplink_vxlan.o
RTMONOBJ=rtmon.o
......
/*
* iplink_vxlan.c VXLAN device support
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Authors: Stephen Hemminger <shemminger@vyatta.com
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <net/if.h>
#include <linux/ip.h>
#include <linux/if_link.h>
#include <arpa/inet.h>
#include "rt_names.h"
#include "utils.h"
#include "ip_common.h"
static void explain(void)
{
fprintf(stderr, "Usage: ... vxlan id VNI [ group ADDR ] [ local ADDR ]\n");
fprintf(stderr, " [ ttl TTL ] [ tos TOS ] [ [no]learning ] [ dev PHYS_DEV ]\n");
fprintf(stderr, "\n");
fprintf(stderr, "Where: VNI := 0-16777215\n");
fprintf(stderr, " ADDR := { IP_ADDRESS | any }\n");
fprintf(stderr, " TOS := { NUMBER | inherit }\n");
fprintf(stderr, " TTL := { 1..255 | inherit }\n");
}
static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
__u32 vni = 0;
int vni_set = 0;
__u32 saddr = 0;
__u32 gaddr = 0;
unsigned link = 0;
__u8 tos = 0;
__u8 ttl = 0;
__u8 learning = 1;
__u8 noage = 0;
__u32 age = 0;
__u32 maxaddr = 0;
while (argc > 0) {
if (!matches(*argv, "id") ||
!matches(*argv, "vni")) {
NEXT_ARG();
if (get_u32(&vni, *argv, 0) ||
vni >= 1u << 24)
invarg("invalid id", *argv);
vni_set = 1;
} else if (!matches(*argv, "group")) {
NEXT_ARG();
gaddr = get_addr32(*argv);
if (!IN_MULTICAST(ntohl(gaddr)))
invarg("invald group address", *argv);
} else if (!matches(*argv, "local")) {
NEXT_ARG();
if (strcmp(*argv, "any"))
saddr = get_addr32(*argv);
if (IN_MULTICAST(ntohl(saddr)))
invarg("invalid local address", *argv);
} else if (!matches(*argv, "dev")) {
NEXT_ARG();
link = if_nametoindex(*argv);
if (link == 0)
exit(-1);
} else if (!matches(*argv, "ttl") ||
!matches(*argv, "hoplimit")) {
unsigned uval;
NEXT_ARG();
if (strcmp(*argv, "inherit") != 0) {
if (get_unsigned(&uval, *argv, 0))
invarg("invalid TTL\n", *argv);
if (uval > 255)
invarg("TTL must be <= 255\n", *argv);
ttl = uval;
}
} else if (!matches(*argv, "tos") ||
!matches(*argv, "dsfield")) {
__u32 uval;
NEXT_ARG();
if (strcmp(*argv, "inherit") != 0) {
if (rtnl_dsfield_a2n(&uval, *argv))
invarg("bad TOS value", *argv);
tos = uval;
} else
tos = 1;
} else if (!matches(*argv, "ageing")) {
NEXT_ARG();
if (strcmp(*argv, "none") == 0)
noage = 1;
else if (get_u32(&age, *argv, 0))
invarg("ageing timer\n", *argv);
} else if (!matches(*argv, "maxaddress")) {
NEXT_ARG();
if (strcmp(*argv, "unlimited") == 0)
maxaddr = 0;
else if (get_u32(&maxaddr, *argv, 0))
invarg("max addresses\n", *argv);
} else if (!matches(*argv, "nolearning")) {
learning = 0;
} else if (!matches(*argv, "learning")) {
learning = 1;
} else if (matches(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "vxlan: what is \"%s\"?\n", *argv);
explain();
return -1;
}
argc--, argv++;
}
if (!vni_set) {
fprintf(stderr, "vxlan: missing virtual network identifier\n");
return -1;
}
addattr32(n, 1024, IFLA_VXLAN_ID, vni);
addattr_l(n, 1024, IFLA_VXLAN_GROUP, &gaddr, 4);
addattr_l(n, 1024, IFLA_VXLAN_LOCAL, &saddr, 4);
if (link)
addattr32(n, 1024, IFLA_VXLAN_LINK, link);
addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
addattr8(n, 1024, IFLA_VXLAN_TOS, tos);
addattr8(n, 1024, IFLA_VXLAN_LEARNING, learning);
if (noage)
addattr32(n, 1024, IFLA_VXLAN_AGEING, 0);
else if (age)
addattr32(n, 1024, IFLA_VXLAN_AGEING, age);
if (maxaddr)
addattr32(n, 1024, IFLA_VXLAN_LIMIT, maxaddr);
return 0;
}
static void vxlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
__u32 vni;
unsigned link;
char s1[1024];
char s2[64];
if (!tb)
return;
if (!tb[IFLA_VXLAN_ID] ||
RTA_PAYLOAD(tb[IFLA_VXLAN_ID]) < sizeof(__u32))
return;
vni = rta_getattr_u32(tb[IFLA_VXLAN_ID]);
fprintf(f, "id %u ", vni);
if (tb[IFLA_VXLAN_GROUP]) {
__u32 addr = rta_getattr_u32(tb[IFLA_VXLAN_GROUP]);
if (addr)
fprintf(f, "group %s ",
format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
}
if (tb[IFLA_VXLAN_LOCAL]) {
unsigned addr = rta_getattr_u32(tb[IFLA_VXLAN_LOCAL]);
if (addr)
fprintf(f, "local %s ",
format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
}
if (tb[IFLA_VXLAN_LINK] &&
(link = rta_getattr_u32(tb[IFLA_VXLAN_LINK]))) {
const char *n = if_indextoname(link, s2);
if (n)
fprintf(f, "dev %s ", n);
else
fprintf(f, "dev %u ", link);
}
if (tb[IFLA_VXLAN_LEARNING] &&
!rta_getattr_u8(tb[IFLA_VXLAN_LEARNING]))
fputs("nolearning ", f);
if (tb[IFLA_VXLAN_TOS]) {
__u8 tos = rta_getattr_u8(tb[IFLA_VXLAN_TOS]);
if (tos == 1)
fprintf(f, "tos inherit ");
else
fprintf(f, "tos %#x ", tos);
}
if (tb[IFLA_VXLAN_TTL]) {
__u8 ttl = rta_getattr_u8(tb[IFLA_VXLAN_TTL]);
if (ttl)
fprintf(f, "ttl %d ", ttl);
}
if (tb[IFLA_VXLAN_AGEING]) {
__u32 age = rta_getattr_u32(tb[IFLA_VXLAN_AGEING]);
if (age == 0)
fprintf(f, "ageing none ");
else
fprintf(f, "ageing %u ", age);
}
if (tb[IFLA_VXLAN_LIMIT]) {
__u32 maxaddr = rta_getattr_u32(tb[IFLA_VXLAN_LIMIT]);
if (maxaddr == 0)
fprintf(f, "maxaddr unlimited ");
else
fprintf(f, "maxaddr %u ", maxaddr);
}
}
struct link_util vxlan_link_util = {
.id = "vxlan",
.maxattr = IFLA_VXLAN_MAX,
.parse_opt = vxlan_parse_opt,
.print_opt = vxlan_print_opt,
};
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