int do_seg6(int argc, char **argv)
{
if (argc < 1 || matches(*argv, "help") == 0)
usage();
memset(&opts, 0, sizeof(opts));
if (matches(*argv, "hmac") == 0) {
NEXT_ARG();
if (matches(*argv, "show") == 0) {
opts.cmd = SEG6_CMD_DUMPHMAC;
} else if (matches(*argv, "set") == 0) {
NEXT_ARG();
if (get_u32(&opts.keyid, *argv, 0) || opts.keyid == 0)
invarg("hmac KEYID value is invalid", *argv);
NEXT_ARG();
if (strcmp(*argv, "sha1") == 0) {
opts.alg_id = SEG6_HMAC_ALGO_SHA1;
} else if (strcmp(*argv, "sha256") == 0) {
opts.alg_id = SEG6_HMAC_ALGO_SHA256;
} else {
invarg("hmac ALGO value is invalid", *argv);
}
opts.cmd = SEG6_CMD_SETHMAC;
opts.pass = getpass(HMAC_KEY_PROMPT);
} else {
invarg("unknown", *argv);
}
} else if (matches(*argv, "tunsrc") == 0) {
NEXT_ARG();
if (matches(*argv, "show") == 0) {
opts.cmd = SEG6_CMD_GET_TUNSRC;
} else if (matches(*argv, "set") == 0) {
NEXT_ARG();
opts.cmd = SEG6_CMD_SET_TUNSRC;
if (!inet_get_addr(*argv, NULL, &opts.addr))
invarg("tunsrc ADDRESS value is invalid",
*argv);
} else {
invarg("unknown", *argv);
}
} else {
invarg("unknown", *argv);
}
return seg6_do_cmd();
}
static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
__u32 vni = 0;
__u32 gaddr = 0;
__u32 daddr = 0;
struct in6_addr gaddr6 = IN6ADDR_ANY_INIT;
struct in6_addr daddr6 = IN6ADDR_ANY_INIT;
__u8 learning = 1;
__u16 dstport = 0;
__u8 metadata = 0;
__u64 attrs = 0;
bool set_op = (n->nlmsg_type == RTM_NEWLINK &&
!(n->nlmsg_flags & NLM_F_CREATE));
while (argc > 0) {
if (!matches(*argv, "id") ||
!matches(*argv, "vni")) {
/* We will add ID attribute outside of the loop since we
* need to consider metadata information as well.
*/
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_ID, "id", *argv);
if (get_u32(&vni, *argv, 0) ||
vni >= 1u << 24)
invarg("invalid id", *argv);
} else if (!matches(*argv, "group")) {
if (daddr || !IN6_IS_ADDR_UNSPECIFIED(&daddr6)) {
fprintf(stderr, "vxlan: both group and remote");
fprintf(stderr, " cannot be specified\n");
return -1;
}
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_GROUP, "group", *argv);
if (!inet_get_addr(*argv, &gaddr, &gaddr6)) {
fprintf(stderr, "Invalid address \"%s\"\n", *argv);
return -1;
}
if (!IN6_IS_ADDR_MULTICAST(&gaddr6) && !IN_MULTICAST(ntohl(gaddr)))
invarg("invalid group address", *argv);
} else if (!matches(*argv, "remote")) {
if (gaddr || !IN6_IS_ADDR_UNSPECIFIED(&gaddr6)) {
fprintf(stderr, "vxlan: both group and remote");
fprintf(stderr, " cannot be specified\n");
return -1;
}
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_GROUP, "remote", *argv);
if (!inet_get_addr(*argv, &daddr, &daddr6)) {
fprintf(stderr, "Invalid address \"%s\"\n", *argv);
return -1;
}
if (IN6_IS_ADDR_MULTICAST(&daddr6) || IN_MULTICAST(ntohl(daddr)))
invarg("invalid remote address", *argv);
} else if (!matches(*argv, "local")) {
__u32 saddr = 0;
struct in6_addr saddr6 = IN6ADDR_ANY_INIT;
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_LOCAL, "local", *argv);
if (strcmp(*argv, "any")) {
if (!inet_get_addr(*argv, &saddr, &saddr6)) {
fprintf(stderr, "Invalid address \"%s\"\n", *argv);
return -1;
}
}
if (IN_MULTICAST(ntohl(saddr)) || IN6_IS_ADDR_MULTICAST(&saddr6))
invarg("invalid local address", *argv);
if (saddr)
addattr_l(n, 1024, IFLA_VXLAN_LOCAL, &saddr, 4);
else if (!IN6_IS_ADDR_UNSPECIFIED(&saddr6))
addattr_l(n, 1024, IFLA_VXLAN_LOCAL6, &saddr6,
sizeof(struct in6_addr));
} else if (!matches(*argv, "dev")) {
unsigned int link;
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_LINK, "dev", *argv);
link = if_nametoindex(*argv);
if (link == 0) {
fprintf(stderr, "Cannot find device \"%s\"\n",
*argv);
exit(-1);
}
addattr32(n, 1024, IFLA_VXLAN_LINK, link);
} else if (!matches(*argv, "ttl") ||
!matches(*argv, "hoplimit")) {
unsigned int uval;
__u8 ttl = 0;
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_TTL, "ttl", *argv);
if (strcmp(*argv, "inherit") != 0) {
if (get_unsigned(&uval, *argv, 0))
invarg("invalid TTL", *argv);
if (uval > 255)
invarg("TTL must be <= 255", *argv);
ttl = uval;
}
addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
} else if (!matches(*argv, "tos") ||
!matches(*argv, "dsfield")) {
__u32 uval;
__u8 tos;
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_TOS, "tos", *argv);
if (strcmp(*argv, "inherit") != 0) {
if (rtnl_dsfield_a2n(&uval, *argv))
invarg("bad TOS value", *argv);
tos = uval;
} else
tos = 1;
addattr8(n, 1024, IFLA_VXLAN_TOS, tos);
} else if (!matches(*argv, "label") ||
!matches(*argv, "flowlabel")) {
__u32 uval;
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_LABEL, "flowlabel",
*argv);
if (get_u32(&uval, *argv, 0) ||
(uval & ~LABEL_MAX_MASK))
invarg("invalid flowlabel", *argv);
addattr32(n, 1024, IFLA_VXLAN_LABEL, htonl(uval));
} else if (!matches(*argv, "ageing")) {
__u32 age;
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_AGEING, "ageing",
*argv);
if (strcmp(*argv, "none") == 0)
age = 0;
else if (get_u32(&age, *argv, 0))
invarg("ageing timer", *argv);
addattr32(n, 1024, IFLA_VXLAN_AGEING, age);
} else if (!matches(*argv, "maxaddress")) {
__u32 maxaddr;
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_LIMIT,
"maxaddress", *argv);
if (strcmp(*argv, "unlimited") == 0)
maxaddr = 0;
else if (get_u32(&maxaddr, *argv, 0))
invarg("max addresses", *argv);
addattr32(n, 1024, IFLA_VXLAN_LIMIT, maxaddr);
} else if (!matches(*argv, "port") ||
!matches(*argv, "srcport")) {
struct ifla_vxlan_port_range range = { 0, 0 };
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_PORT_RANGE, "srcport",
*argv);
if (get_be16(&range.low, *argv, 0))
invarg("min port", *argv);
NEXT_ARG();
if (get_be16(&range.high, *argv, 0))
invarg("max port", *argv);
if (range.low || range.high) {
addattr_l(n, 1024, IFLA_VXLAN_PORT_RANGE,
&range, sizeof(range));
}
} else if (!matches(*argv, "dstport")) {
NEXT_ARG();
check_duparg(&attrs, IFLA_VXLAN_PORT, "dstport", *argv);
if (get_u16(&dstport, *argv, 0))
invarg("dst port", *argv);
} else if (!matches(*argv, "nolearning")) {
check_duparg(&attrs, IFLA_VXLAN_LEARNING, *argv, *argv);
learning = 0;
} else if (!matches(*argv, "learning")) {
check_duparg(&attrs, IFLA_VXLAN_LEARNING, *argv, *argv);
learning = 1;
} else if (!matches(*argv, "noproxy")) {
check_duparg(&attrs, IFLA_VXLAN_PROXY, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_PROXY, 0);
} else if (!matches(*argv, "proxy")) {
check_duparg(&attrs, IFLA_VXLAN_PROXY, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_PROXY, 1);
} else if (!matches(*argv, "norsc")) {
check_duparg(&attrs, IFLA_VXLAN_RSC, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_RSC, 0);
} else if (!matches(*argv, "rsc")) {
check_duparg(&attrs, IFLA_VXLAN_RSC, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_RSC, 1);
} else if (!matches(*argv, "nol2miss")) {
check_duparg(&attrs, IFLA_VXLAN_L2MISS, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_L2MISS, 0);
} else if (!matches(*argv, "l2miss")) {
check_duparg(&attrs, IFLA_VXLAN_L2MISS, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_L2MISS, 1);
} else if (!matches(*argv, "nol3miss")) {
check_duparg(&attrs, IFLA_VXLAN_L3MISS, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_L3MISS, 0);
} else if (!matches(*argv, "l3miss")) {
check_duparg(&attrs, IFLA_VXLAN_L3MISS, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_L3MISS, 1);
} else if (!matches(*argv, "udpcsum")) {
check_duparg(&attrs, IFLA_VXLAN_UDP_CSUM, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_UDP_CSUM, 1);
} else if (!matches(*argv, "noudpcsum")) {
check_duparg(&attrs, IFLA_VXLAN_UDP_CSUM, *argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_UDP_CSUM, 0);
} else if (!matches(*argv, "udp6zerocsumtx")) {
check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
*argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, 1);
} else if (!matches(*argv, "noudp6zerocsumtx")) {
check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
*argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, 0);
} else if (!matches(*argv, "udp6zerocsumrx")) {
check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
*argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 1);
} else if (!matches(*argv, "noudp6zerocsumrx")) {
check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
*argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 0);
} else if (!matches(*argv, "remcsumtx")) {
check_duparg(&attrs, IFLA_VXLAN_REMCSUM_TX,
*argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_REMCSUM_TX, 1);
} else if (!matches(*argv, "noremcsumtx")) {
check_duparg(&attrs, IFLA_VXLAN_REMCSUM_TX,
*argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_REMCSUM_TX, 0);
} else if (!matches(*argv, "remcsumrx")) {
check_duparg(&attrs, IFLA_VXLAN_REMCSUM_RX,
*argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_REMCSUM_RX, 1);
} else if (!matches(*argv, "noremcsumrx")) {
check_duparg(&attrs, IFLA_VXLAN_REMCSUM_RX,
*argv, *argv);
addattr8(n, 1024, IFLA_VXLAN_REMCSUM_RX, 0);
} else if (!matches(*argv, "external")) {
check_duparg(&attrs, IFLA_VXLAN_COLLECT_METADATA,
*argv, *argv);
metadata = 1;
learning = 0;
/* we will add LEARNING attribute outside of the loop */
addattr8(n, 1024, IFLA_VXLAN_COLLECT_METADATA,
metadata);
} else if (!matches(*argv, "noexternal")) {
check_duparg(&attrs, IFLA_VXLAN_COLLECT_METADATA,
*argv, *argv);
metadata = 0;
addattr8(n, 1024, IFLA_VXLAN_COLLECT_METADATA,
metadata);
} else if (!matches(*argv, "gbp")) {
check_duparg(&attrs, IFLA_VXLAN_GBP, *argv, *argv);
addattr_l(n, 1024, IFLA_VXLAN_GBP, NULL, 0);
} else if (!matches(*argv, "gpe")) {
check_duparg(&attrs, IFLA_VXLAN_GPE, *argv, *argv);
addattr_l(n, 1024, IFLA_VXLAN_GPE, NULL, 0);
} else if (matches(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "vxlan: unknown command \"%s\"?\n", *argv);
explain();
return -1;
}
argc--, argv++;
}
if (metadata && VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID)) {
fprintf(stderr, "vxlan: both 'external' and vni cannot be specified\n");
return -1;
}
if (!metadata && !VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID)) {
fprintf(stderr, "vxlan: missing virtual network identifier\n");
return -1;
}
if ((gaddr || !IN6_IS_ADDR_UNSPECIFIED(&gaddr6)) &&
!VXLAN_ATTRSET(attrs, IFLA_VXLAN_LINK)) {
fprintf(stderr, "vxlan: 'group' requires 'dev' to be specified\n");
return -1;
}
if (!VXLAN_ATTRSET(attrs, IFLA_VXLAN_PORT) &&
VXLAN_ATTRSET(attrs, IFLA_VXLAN_GPE)) {
dstport = 4790;
} else if (!VXLAN_ATTRSET(attrs, IFLA_VXLAN_PORT) && !set_op) {
fprintf(stderr, "vxlan: destination port not specified\n"
"Will use Linux kernel default (non-standard value)\n");
fprintf(stderr,
"Use 'dstport 4789' to get the IANA assigned value\n"
"Use 'dstport 0' to get default and quiet this message\n");
}
addattr32(n, 1024, IFLA_VXLAN_ID, vni);
if (gaddr)
addattr_l(n, 1024, IFLA_VXLAN_GROUP, &gaddr, 4);
else if (daddr)
addattr_l(n, 1024, IFLA_VXLAN_GROUP, &daddr, 4);
else if (!IN6_IS_ADDR_UNSPECIFIED(&gaddr6))
addattr_l(n, 1024, IFLA_VXLAN_GROUP6, &gaddr6, sizeof(struct in6_addr));
else if (!IN6_IS_ADDR_UNSPECIFIED(&daddr6))
addattr_l(n, 1024, IFLA_VXLAN_GROUP6, &daddr6, sizeof(struct in6_addr));
else if (preferred_family == AF_INET)
addattr_l(n, 1024, IFLA_VXLAN_GROUP, &daddr, 4);
else if (preferred_family == AF_INET6)
addattr_l(n, 1024, IFLA_VXLAN_GROUP6, &daddr6, sizeof(struct in6_addr));
if (!set_op || VXLAN_ATTRSET(attrs, IFLA_VXLAN_LEARNING))
addattr8(n, 1024, IFLA_VXLAN_LEARNING, learning);
if (dstport)
addattr16(n, 1024, IFLA_VXLAN_PORT, htons(dstport));
return 0;
}
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;
__u32 daddr = 0;
struct in6_addr saddr6 = IN6ADDR_ANY_INIT;
struct in6_addr gaddr6 = IN6ADDR_ANY_INIT;
struct in6_addr daddr6 = IN6ADDR_ANY_INIT;
unsigned int link = 0;
__u8 tos = 0;
__u8 ttl = 0;
__u32 label = 0;
__u8 learning = 1;
__u8 proxy = 0;
__u8 rsc = 0;
__u8 l2miss = 0;
__u8 l3miss = 0;
__u8 noage = 0;
__u32 age = 0;
__u32 maxaddr = 0;
__u16 dstport = 0;
__u8 udpcsum = 0;
bool udpcsum_set = false;
__u8 udp6zerocsumtx = 0;
bool udp6zerocsumtx_set = false;
__u8 udp6zerocsumrx = 0;
bool udp6zerocsumrx_set = false;
__u8 remcsumtx = 0;
__u8 remcsumrx = 0;
__u8 metadata = 0;
__u8 gbp = 0;
__u8 gpe = 0;
int dst_port_set = 0;
struct ifla_vxlan_port_range range = { 0, 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();
if (!inet_get_addr(*argv, &gaddr, &gaddr6)) {
fprintf(stderr, "Invalid address \"%s\"\n", *argv);
return -1;
}
if (!IN6_IS_ADDR_MULTICAST(&gaddr6) && !IN_MULTICAST(ntohl(gaddr)))
invarg("invalid group address", *argv);
} else if (!matches(*argv, "remote")) {
NEXT_ARG();
if (!inet_get_addr(*argv, &daddr, &daddr6)) {
fprintf(stderr, "Invalid address \"%s\"\n", *argv);
return -1;
}
if (IN6_IS_ADDR_MULTICAST(&daddr6) || IN_MULTICAST(ntohl(daddr)))
invarg("invalid remote address", *argv);
} else if (!matches(*argv, "local")) {
NEXT_ARG();
if (strcmp(*argv, "any")) {
if (!inet_get_addr(*argv, &saddr, &saddr6)) {
fprintf(stderr, "Invalid address \"%s\"\n", *argv);
return -1;
}
}
if (IN_MULTICAST(ntohl(saddr)) || IN6_IS_ADDR_MULTICAST(&saddr6))
invarg("invalid local address", *argv);
} else if (!matches(*argv, "dev")) {
NEXT_ARG();
link = if_nametoindex(*argv);
if (link == 0) {
fprintf(stderr, "Cannot find device \"%s\"\n",
*argv);
exit(-1);
}
} else if (!matches(*argv, "ttl") ||
!matches(*argv, "hoplimit")) {
unsigned int uval;
NEXT_ARG();
if (strcmp(*argv, "inherit") != 0) {
if (get_unsigned(&uval, *argv, 0))
invarg("invalid TTL", *argv);
if (uval > 255)
invarg("TTL must be <= 255", *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, "label") ||
!matches(*argv, "flowlabel")) {
__u32 uval;
NEXT_ARG();
if (get_u32(&uval, *argv, 0) ||
(uval & ~LABEL_MAX_MASK))
invarg("invalid flowlabel", *argv);
label = htonl(uval);
} else if (!matches(*argv, "ageing")) {
NEXT_ARG();
if (strcmp(*argv, "none") == 0)
noage = 1;
else if (get_u32(&age, *argv, 0))
invarg("ageing timer", *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", *argv);
} else if (!matches(*argv, "port") ||
!matches(*argv, "srcport")) {
NEXT_ARG();
if (get_be16(&range.low, *argv, 0))
invarg("min port", *argv);
NEXT_ARG();
if (get_be16(&range.high, *argv, 0))
invarg("max port", *argv);
} else if (!matches(*argv, "dstport")) {
NEXT_ARG();
if (get_u16(&dstport, *argv, 0))
invarg("dst port", *argv);
dst_port_set = 1;
} else if (!matches(*argv, "nolearning")) {
learning = 0;
} else if (!matches(*argv, "learning")) {
learning = 1;
} else if (!matches(*argv, "noproxy")) {
proxy = 0;
} else if (!matches(*argv, "proxy")) {
proxy = 1;
} else if (!matches(*argv, "norsc")) {
rsc = 0;
} else if (!matches(*argv, "rsc")) {
rsc = 1;
} else if (!matches(*argv, "nol2miss")) {
l2miss = 0;
} else if (!matches(*argv, "l2miss")) {
l2miss = 1;
} else if (!matches(*argv, "nol3miss")) {
l3miss = 0;
} else if (!matches(*argv, "l3miss")) {
l3miss = 1;
} else if (!matches(*argv, "udpcsum")) {
udpcsum = 1;
udpcsum_set = true;
} else if (!matches(*argv, "noudpcsum")) {
udpcsum = 0;
udpcsum_set = true;
} else if (!matches(*argv, "udp6zerocsumtx")) {
udp6zerocsumtx = 1;
udp6zerocsumtx_set = true;
} else if (!matches(*argv, "noudp6zerocsumtx")) {
udp6zerocsumtx = 0;
udp6zerocsumtx_set = true;
} else if (!matches(*argv, "udp6zerocsumrx")) {
udp6zerocsumrx = 1;
udp6zerocsumrx_set = true;
} else if (!matches(*argv, "noudp6zerocsumrx")) {
udp6zerocsumrx = 0;
udp6zerocsumrx_set = true;
} else if (!matches(*argv, "remcsumtx")) {
remcsumtx = 1;
} else if (!matches(*argv, "noremcsumtx")) {
remcsumtx = 0;
} else if (!matches(*argv, "remcsumrx")) {
remcsumrx = 1;
} else if (!matches(*argv, "noremcsumrx")) {
remcsumrx = 0;
} else if (!matches(*argv, "external")) {
metadata = 1;
learning = 0;
} else if (!matches(*argv, "noexternal")) {
metadata = 0;
} else if (!matches(*argv, "gbp")) {
gbp = 1;
} else if (!matches(*argv, "gpe")) {
gpe = 1;
} else if (matches(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "vxlan: unknown command \"%s\"?\n", *argv);
explain();
return -1;
}
argc--, argv++;
}
if (metadata && vni_set) {
fprintf(stderr, "vxlan: both 'external' and vni cannot be specified\n");
return -1;
}
if (!metadata && !vni_set) {
fprintf(stderr, "vxlan: missing virtual network identifier\n");
return -1;
}
if ((gaddr && daddr) ||
(!IN6_IS_ADDR_UNSPECIFIED(&gaddr6) &&
!IN6_IS_ADDR_UNSPECIFIED(&daddr6))) {
fprintf(stderr, "vxlan: both group and remote cannot be specified\n");
return -1;
}
if ((gaddr || !IN6_IS_ADDR_UNSPECIFIED(&gaddr6)) && !link) {
fprintf(stderr, "vxlan: 'group' requires 'dev' to be specified\n");
return -1;
}
if (!dst_port_set && gpe) {
dstport = 4790;
} else if (!dst_port_set) {
fprintf(stderr, "vxlan: destination port not specified\n"
"Will use Linux kernel default (non-standard value)\n");
fprintf(stderr,
"Use 'dstport 4789' to get the IANA assigned value\n"
"Use 'dstport 0' to get default and quiet this message\n");
}
addattr32(n, 1024, IFLA_VXLAN_ID, vni);
if (gaddr)
addattr_l(n, 1024, IFLA_VXLAN_GROUP, &gaddr, 4);
else if (daddr)
addattr_l(n, 1024, IFLA_VXLAN_GROUP, &daddr, 4);
if (!IN6_IS_ADDR_UNSPECIFIED(&gaddr6))
addattr_l(n, 1024, IFLA_VXLAN_GROUP6, &gaddr6, sizeof(struct in6_addr));
else if (!IN6_IS_ADDR_UNSPECIFIED(&daddr6))
addattr_l(n, 1024, IFLA_VXLAN_GROUP6, &daddr6, sizeof(struct in6_addr));
if (saddr)
addattr_l(n, 1024, IFLA_VXLAN_LOCAL, &saddr, 4);
else if (!IN6_IS_ADDR_UNSPECIFIED(&saddr6))
addattr_l(n, 1024, IFLA_VXLAN_LOCAL6, &saddr6, sizeof(struct in6_addr));
if (link)
addattr32(n, 1024, IFLA_VXLAN_LINK, link);
addattr32(n, 1024, IFLA_VXLAN_LABEL, label);
addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
addattr8(n, 1024, IFLA_VXLAN_TOS, tos);
addattr8(n, 1024, IFLA_VXLAN_LEARNING, learning);
addattr8(n, 1024, IFLA_VXLAN_PROXY, proxy);
addattr8(n, 1024, IFLA_VXLAN_RSC, rsc);
addattr8(n, 1024, IFLA_VXLAN_L2MISS, l2miss);
addattr8(n, 1024, IFLA_VXLAN_L3MISS, l3miss);
addattr8(n, 1024, IFLA_VXLAN_REMCSUM_TX, remcsumtx);
addattr8(n, 1024, IFLA_VXLAN_REMCSUM_RX, remcsumrx);
addattr8(n, 1024, IFLA_VXLAN_COLLECT_METADATA, metadata);
if (udpcsum_set)
addattr8(n, 1024, IFLA_VXLAN_UDP_CSUM, udpcsum);
if (udp6zerocsumtx_set)
addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, udp6zerocsumtx);
if (udp6zerocsumrx_set)
addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, udp6zerocsumrx);
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);
if (range.low || range.high)
addattr_l(n, 1024, IFLA_VXLAN_PORT_RANGE,
&range, sizeof(range));
if (dstport)
addattr16(n, 1024, IFLA_VXLAN_PORT, htons(dstport));
if (gbp)
addattr_l(n, 1024, IFLA_VXLAN_GBP, NULL, 0);
if (gpe)
addattr_l(n, 1024, IFLA_VXLAN_GPE, NULL, 0);
return 0;
}
static int geneve_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
__u32 vni = 0;
int vni_set = 0;
__u32 daddr = 0;
struct in6_addr daddr6 = IN6ADDR_ANY_INIT;
__u32 label = 0;
__u8 ttl = 0;
__u8 tos = 0;
__u16 dstport = 0;
bool metadata = 0;
__u8 udpcsum = 0;
bool udpcsum_set = false;
__u8 udp6zerocsumtx = 0;
bool udp6zerocsumtx_set = false;
__u8 udp6zerocsumrx = 0;
bool udp6zerocsumrx_set = false;
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, "remote")) {
NEXT_ARG();
if (!inet_get_addr(*argv, &daddr, &daddr6)) {
fprintf(stderr, "Invalid address \"%s\"\n", *argv);
return -1;
}
if (IN6_IS_ADDR_MULTICAST(&daddr6) || IN_MULTICAST(ntohl(daddr)))
invarg("invalid remote address", *argv);
} else if (!matches(*argv, "ttl") ||
!matches(*argv, "hoplimit")) {
unsigned int uval;
NEXT_ARG();
if (strcmp(*argv, "inherit") != 0) {
if (get_unsigned(&uval, *argv, 0))
invarg("invalid TTL", *argv);
if (uval > 255)
invarg("TTL must be <= 255", *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, "label") ||
!matches(*argv, "flowlabel")) {
__u32 uval;
NEXT_ARG();
if (get_u32(&uval, *argv, 0) ||
(uval & ~LABEL_MAX_MASK))
invarg("invalid flowlabel", *argv);
label = htonl(uval);
} else if (!matches(*argv, "dstport")) {
NEXT_ARG();
if (get_u16(&dstport, *argv, 0))
invarg("dstport", *argv);
} else if (!matches(*argv, "external")) {
metadata = true;
} else if (!matches(*argv, "noexternal")) {
metadata = false;
} else if (!matches(*argv, "udpcsum")) {
udpcsum = 1;
udpcsum_set = true;
} else if (!matches(*argv, "noudpcsum")) {
udpcsum = 0;
udpcsum_set = true;
} else if (!matches(*argv, "udp6zerocsumtx")) {
udp6zerocsumtx = 1;
udp6zerocsumtx_set = true;
} else if (!matches(*argv, "noudp6zerocsumtx")) {
udp6zerocsumtx = 0;
udp6zerocsumtx_set = true;
} else if (!matches(*argv, "udp6zerocsumrx")) {
udp6zerocsumrx = 1;
udp6zerocsumrx_set = true;
} else if (!matches(*argv, "noudp6zerocsumrx")) {
udp6zerocsumrx = 0;
udp6zerocsumrx_set = true;
} else if (matches(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "geneve: unknown command \"%s\"?\n", *argv);
explain();
return -1;
}
argc--, argv++;
}
if (metadata && vni_set) {
fprintf(stderr, "geneve: both 'external' and vni cannot be specified\n");
return -1;
}
if (!metadata) {
/* parameter checking make sense only for full geneve tunnels */
if (!vni_set) {
fprintf(stderr, "geneve: missing virtual network identifier\n");
return -1;
}
if (!daddr && IN6_IS_ADDR_UNSPECIFIED(&daddr6)) {
fprintf(stderr, "geneve: remote link partner not specified\n");
return -1;
}
}
addattr32(n, 1024, IFLA_GENEVE_ID, vni);
if (daddr)
addattr_l(n, 1024, IFLA_GENEVE_REMOTE, &daddr, 4);
if (!IN6_IS_ADDR_UNSPECIFIED(&daddr6))
addattr_l(n, 1024, IFLA_GENEVE_REMOTE6, &daddr6, sizeof(struct in6_addr));
addattr32(n, 1024, IFLA_GENEVE_LABEL, label);
addattr8(n, 1024, IFLA_GENEVE_TTL, ttl);
addattr8(n, 1024, IFLA_GENEVE_TOS, tos);
if (dstport)
addattr16(n, 1024, IFLA_GENEVE_PORT, htons(dstport));
if (metadata)
addattr(n, 1024, IFLA_GENEVE_COLLECT_METADATA);
if (udpcsum_set)
addattr8(n, 1024, IFLA_GENEVE_UDP_CSUM, udpcsum);
if (udp6zerocsumtx_set)
addattr8(n, 1024, IFLA_GENEVE_UDP_ZERO_CSUM6_TX, udp6zerocsumtx);
if (udp6zerocsumrx_set)
addattr8(n, 1024, IFLA_GENEVE_UDP_ZERO_CSUM6_RX, udp6zerocsumrx);
return 0;
}
