void test_cos_with_l2_priority(void)
{
odp_packet_t pkt;
odph_ethhdr_t *ethhdr;
odph_vlanhdr_t *vlan;
odp_queue_t queue;
uint32_t seq;
uint8_t i;
for (i = 0; i < CLS_L2_QOS_MAX; i++) {
pkt = create_packet(true);
seq = cls_pkt_get_seq(pkt);
ethhdr = (odph_ethhdr_t *)odp_packet_l2_ptr(pkt, NULL);
vlan = (odph_vlanhdr_t *)(ðhdr->type);
vlan->tci = odp_cpu_to_be_16(i << 13);
enqueue_loop_interface(pkt);
pkt = receive_packet(&queue, ODP_TIME_SEC);
CU_ASSERT(queue == queue_list[CLS_L2_QOS_0 + i]);
CU_ASSERT(seq == cls_pkt_get_seq(pkt));
odp_packet_free(pkt);
}
}
static void test_packet_size_is_less_then_mtu(void)
{
odp_packet_t pkt_orig, pkt_sent;
odp_event_t ev;
int res;
struct ofp_ether_header *eth;
if (create_odp_packet_ip4(&pkt_orig, pkt1_frag1,
sizeof(pkt1_frag1), 0)) {
CU_FAIL("Fail to create packet");
return;
}
res = ofp_ip_output(pkt_orig, &nexthop);
CU_ASSERT_EQUAL(res, OFP_PKT_PROCESSED);
res = ofp_send_pending_pkt();
CU_ASSERT_EQUAL(res, OFP_PKT_PROCESSED);
ev = odp_queue_deq(dev->outq_def);
CU_ASSERT_NOT_EQUAL_FATAL(ev, ODP_EVENT_INVALID);
CU_ASSERT_EQUAL_FATAL(odp_queue_deq(dev->outq_def), ODP_EVENT_INVALID);
pkt_sent = odp_packet_from_event(ev);
CU_ASSERT_EQUAL_FATAL(odp_packet_len(pkt_sent), sizeof(pkt1_frag1));
eth = odp_packet_l2_ptr(pkt_sent, NULL);
if (memcmp(eth->ether_dhost, dst_mac, OFP_ETHER_ADDR_LEN))
CU_FAIL("Bad destination mac address.");
if (memcmp(eth->ether_shost, dev->mac, OFP_ETHER_ADDR_LEN))
CU_FAIL("Bad source mac address.");
if (memcmp(odp_packet_l3_ptr(pkt_sent, NULL),
&orig_pkt_data[OFP_ETHER_HDR_LEN],
sizeof(pkt1_frag1) - OFP_ETHER_HDR_LEN))
CU_FAIL("corrupt l3 + data forwarded");
CU_PASS("Correct packet");
odp_packet_free(pkt_sent);
}
static void
test_send_frame_novlan_to_vlan(void)
{
odp_packet_t pkt = ODP_PACKET_INVALID;
odp_event_t ev;
struct ofp_ether_vlan_header *eth_vlan;
uint8_t *buf;
int res;
if (create_odp_packet_ip4(&pkt, test_frame, sizeof(test_frame), 0)) {
CU_FAIL("Fail to create packet");
return;
}
res = ofp_send_frame(dev_vlan, pkt);
CU_ASSERT_EQUAL(res, OFP_PKT_PROCESSED);
ev = odp_queue_deq(dev->outq_def);
CU_ASSERT_NOT_EQUAL_FATAL(ev, ODP_EVENT_INVALID);
pkt = odp_packet_from_event(ev);
CU_ASSERT_EQUAL_FATAL(odp_packet_len(pkt), sizeof(test_frame) + 4);
eth_vlan = odp_packet_l2_ptr(pkt, NULL);
if (memcmp(eth_vlan, test_frame, 2 * OFP_ETHER_ADDR_LEN))
CU_FAIL("Frame data mismatch.");
CU_ASSERT_EQUAL(eth_vlan->evl_encap_proto,
odp_cpu_to_be_16(OFP_ETHERTYPE_VLAN));
CU_ASSERT_EQUAL(eth_vlan->evl_tag,
odp_cpu_to_be_16(dev_vlan->vlan));
buf = (uint8_t *)eth_vlan;
if (memcmp(&buf[16], &test_frame[12],
sizeof(test_frame) - 2 * OFP_ETHER_ADDR_LEN))
CU_FAIL("Frame data mismatch.");
}
enum ofp_return_code ofp_send_frame(struct ofp_ifnet *dev, odp_packet_t pkt)
{
struct ofp_ether_header *eth, eth_tmp;
struct ofp_ether_vlan_header *eth_vlan, eth_vlan_tmp;
uint32_t pkt_len, eth_hdr_len;
enum ofp_return_code rc;
if (ofp_if_type(dev) == OFP_IFT_GRE) {
OFP_ERR("Send frame on GRE port");
return OFP_PKT_DROP;
}
ofp_packet_user_area_reset(pkt);
/* Contsruct ethernet header */
eth = odp_packet_l2_ptr(pkt, NULL);
eth_vlan = odp_packet_l2_ptr(pkt, NULL);
if (odp_be_to_cpu_16(eth->ether_type) == OFP_ETHERTYPE_VLAN) {
if (dev->vlan) {
/* change vlan */
eth_vlan->evl_tag = odp_cpu_to_be_16(dev->vlan);
} else {
/* remove existing vlan */
eth_vlan_tmp = *eth_vlan;
eth = odp_packet_pull_head(pkt, 4);
if (!eth) {
OFP_ERR("odp_packet_pull_head failed");
return OFP_PKT_DROP;
}
odp_packet_l3_offset_set(pkt,
odp_packet_l3_offset(pkt) - 4);
ofp_copy_mac(eth->ether_dhost, eth_vlan_tmp.evl_dhost);
ofp_copy_mac(eth->ether_shost, eth_vlan_tmp.evl_shost);
eth->ether_type = eth_vlan_tmp.evl_proto;
}
} else {
if (dev->vlan) {
/* insert vlan */
eth_tmp = *eth;
eth_vlan = odp_packet_push_head(pkt, 4);
if (!eth_vlan) {
OFP_ERR("odp_packet_push_head failed");
return OFP_PKT_DROP;
}
odp_packet_l3_offset_set(pkt,
odp_packet_l3_offset(pkt) + 4);
ofp_copy_mac(eth_vlan->evl_dhost, eth_tmp.ether_dhost);
ofp_copy_mac(eth_vlan->evl_shost, eth_tmp.ether_shost);
eth_vlan->evl_encap_proto =
odp_cpu_to_be_16(OFP_ETHERTYPE_VLAN);
eth_vlan->evl_tag = odp_cpu_to_be_16(dev->vlan);
eth_vlan->evl_proto = eth_tmp.ether_type;
}
}
if (dev->vlan)
eth_hdr_len = OFP_ETHER_HDR_LEN + OFP_ETHER_VLAN_ENCAP_LEN;
else
eth_hdr_len = OFP_ETHER_HDR_LEN;
pkt_len = odp_packet_len(pkt) - eth_hdr_len;
if (pkt_len > dev->if_mtu) {
OFP_ERR("Packet size bigger than MTU: %d %d", pkt_len,
dev->if_mtu);
return OFP_PKT_DROP;
}
rc = send_pkt_out(dev, pkt);
if (rc != OFP_PKT_PROCESSED)
return rc;
return ofp_send_pending_pkt();
}
enum ofp_return_code ofp_arp_processing(odp_packet_t *pkt)
{
struct ofp_arphdr *arp;
struct ofp_ifnet *dev = odp_packet_user_ptr(*pkt);
struct ofp_ifnet *outdev = dev;
uint16_t vlan = dev->vlan;
uint8_t inner_from_mac[OFP_ETHER_ADDR_LEN];
uint32_t is_ours;
arp = (struct ofp_arphdr *)odp_packet_l3_ptr(*pkt, NULL);
if (odp_unlikely(arp == NULL)) {
OFP_DBG("arp is NULL");
return OFP_PKT_DROP;
}
/* save the received arp info */
if (odp_be_to_cpu_16(arp->op) == OFP_ARPOP_REPLY)
ofp_add_mac(dev, arp->ip_src, arp->eth_src);
OFP_DBG("Device IP: %s, Packet Dest IP: %s",
ofp_print_ip_addr(dev->ip_addr),
ofp_print_ip_addr(arp->ip_dst));
/* Check for VXLAN interface */
if (odp_unlikely(ofp_if_type(dev) == OFP_IFT_VXLAN)) {
ofp_vxlan_update_devices(*pkt, arp, &vlan, &dev, &outdev,
inner_from_mac);
}
is_ours = dev->ip_addr && dev->ip_addr == (ofp_in_addr_t)(arp->ip_dst);
if (!is_ours && !global_param->arp.check_interface) {
/* This may be for some other local interface. */
uint32_t flags;
struct ofp_nh_entry *nh;
nh = ofp_get_next_hop(dev->vrf, arp->ip_dst, &flags);
if (nh)
is_ours = nh->flags & OFP_RTF_LOCAL;
}
/* on our interface an ARP request */
if (is_ours &&
odp_be_to_cpu_16(arp->op) == OFP_ARPOP_REQUEST) {
struct ofp_arphdr tmp;
struct ofp_ether_header tmp_eth;
struct ofp_ether_vlan_header tmp_eth_vlan;
void *l2_addr = odp_packet_l2_ptr(*pkt, NULL);
struct ofp_ether_header *eth =
(struct ofp_ether_header *)l2_addr;
struct ofp_ether_vlan_header *eth_vlan =
(struct ofp_ether_vlan_header *)l2_addr;
ofp_add_mac(dev, arp->ip_src, arp->eth_src);
if (vlan)
tmp_eth_vlan = *eth_vlan;
else
tmp_eth = *eth;
OFP_DBG("Reply to ARPOP_REQ from ip %s"
#ifdef SP
"on IF %d"
#endif
" mac %s ip %s",
ofp_print_ip_addr(arp->ip_src),
#ifdef SP
dev->linux_index,
#endif
ofp_print_mac(dev->mac),
ofp_print_ip_addr(arp->ip_dst));
tmp = *arp;
tmp.ip_dst = arp->ip_src;
tmp.ip_src = arp->ip_dst;
memcpy(&tmp.eth_dst, &arp->eth_src, OFP_ETHER_ADDR_LEN);
memcpy(&tmp.eth_src, dev->mac, OFP_ETHER_ADDR_LEN);
tmp.op = odp_cpu_to_be_16(OFP_ARPOP_REPLY);
*arp = tmp;
if (vlan) {
memcpy(tmp_eth_vlan.evl_dhost, &arp->eth_dst,
OFP_ETHER_ADDR_LEN);
memcpy(tmp_eth_vlan.evl_shost, &arp->eth_src,
OFP_ETHER_ADDR_LEN);
*eth_vlan = tmp_eth_vlan;
} else {
memcpy(tmp_eth.ether_dhost, &arp->eth_dst,
OFP_ETHER_ADDR_LEN);
memcpy(tmp_eth.ether_shost, &arp->eth_src,
OFP_ETHER_ADDR_LEN);
*eth = tmp_eth;
}
if (odp_unlikely(ofp_if_type(dev) == OFP_IFT_VXLAN)) {
/* Restore the original vxlan header and
update the addresses */
ofp_vxlan_restore_and_update_header
(*pkt, outdev, inner_from_mac);
}
return send_pkt_out(outdev, *pkt);
}
return OFP_PKT_CONTINUE;
}
static void
test_packet_output_ipv6_to_gre(void)
{
odp_packet_t pkt = ODP_PACKET_INVALID;
odp_event_t ev;
int res;
struct ofp_ether_header *eth;
struct ofp_ip6_hdr *ip6, *ip6_orig;
struct ofp_ip *ip;
struct ofp_greip *greip;
(void)tcp_frame;
(void)icmp_frame;
(void)arp_frame;
(void)icmp6_frame;
if (create_odp_packet_ip6(&pkt, ip6udp_frame, sizeof(ip6udp_frame))) {
CU_FAIL("Fail to create packet");
return;
}
ip6 = odp_packet_l3_ptr(pkt, NULL);
ofp_set_route6_params(OFP_ROUTE6_ADD, 0 /*vrf*/, 100 /*vlan*/, GRE_PORTS,
ip6->ip6_dst.__u6_addr.__u6_addr8, 64 /*masklen*/,
0 /*gw*/, OFP_RTF_NET /* flags */);
res = ofp_ip6_output(pkt, NULL);
CU_ASSERT_EQUAL(res, OFP_PKT_PROCESSED);
res = ofp_send_pending_pkt();
CU_ASSERT_EQUAL(res, OFP_PKT_PROCESSED);
ev = odp_queue_deq(dev->outq_def);
CU_ASSERT_NOT_EQUAL_FATAL(ev, ODP_EVENT_INVALID);
pkt = odp_packet_from_event(ev);
CU_ASSERT_EQUAL_FATAL(odp_packet_len(pkt),
sizeof(ip6udp_frame) + 20 + 4);
eth = odp_packet_l2_ptr(pkt, NULL);
if (memcmp(eth->ether_dhost, tun_rem_mac, OFP_ETHER_ADDR_LEN))
CU_FAIL("Bad destination mac address.");
if (memcmp(eth->ether_shost, dev->mac, OFP_ETHER_ADDR_LEN))
CU_FAIL("Bad source mac address.");
ip = odp_packet_l3_ptr(pkt, NULL);
CU_ASSERT_EQUAL(ip->ip_src.s_addr, dev_ip);
CU_ASSERT_EQUAL(ip->ip_dst.s_addr, tun_rem_ip);
CU_ASSERT_EQUAL(ip->ip_p, OFP_IPPROTO_GRE);
greip = (struct ofp_greip *)ip;
CU_ASSERT_EQUAL(greip->gi_g.flags, 0);
CU_ASSERT_EQUAL(greip->gi_g.ptype,
odp_cpu_to_be_16(OFP_ETHERTYPE_IPV6));
/* inner ip */
ip6 = (struct ofp_ip6_hdr *)(greip + 1);
ip6_orig = (struct ofp_ip6_hdr *)
(&orig_pkt_data[OFP_ETHER_HDR_LEN]);
if (memcmp(ip6, ip6_orig,
odp_be_to_cpu_16(ip6_orig->ofp_ip6_plen) + sizeof(*ip6)))
CU_FAIL("Inner IP packet error.");
}
odp_packet_t create_packet(odp_pool_t pool, bool vlan,
odp_atomic_u32_t *seq, bool flag_udp)
{
uint32_t seqno;
odph_ethhdr_t *ethhdr;
odph_udphdr_t *udp;
odph_tcphdr_t *tcp;
odph_ipv4hdr_t *ip;
uint8_t payload_len;
char src_mac[ODPH_ETHADDR_LEN] = {0};
char dst_mac[ODPH_ETHADDR_LEN] = {0};
uint32_t addr = 0;
uint32_t mask;
int offset;
odp_packet_t pkt;
int packet_len = 0;
payload_len = sizeof(cls_test_packet_t);
packet_len += ODPH_ETHHDR_LEN;
packet_len += ODPH_IPV4HDR_LEN;
if (flag_udp)
packet_len += ODPH_UDPHDR_LEN;
else
packet_len += ODPH_TCPHDR_LEN;
packet_len += payload_len;
if (vlan)
packet_len += ODPH_VLANHDR_LEN;
pkt = odp_packet_alloc(pool, packet_len);
CU_ASSERT_FATAL(pkt != ODP_PACKET_INVALID);
/* Ethernet Header */
offset = 0;
odp_packet_l2_offset_set(pkt, offset);
ethhdr = (odph_ethhdr_t *)odp_packet_l2_ptr(pkt, NULL);
memcpy(ethhdr->src.addr, src_mac, ODPH_ETHADDR_LEN);
memcpy(ethhdr->dst.addr, dst_mac, ODPH_ETHADDR_LEN);
offset += sizeof(odph_ethhdr_t);
if (vlan) {
/* Default vlan header */
uint8_t *parseptr;
odph_vlanhdr_t *vlan;
vlan = (odph_vlanhdr_t *)(ðhdr->type);
parseptr = (uint8_t *)vlan;
vlan->tci = odp_cpu_to_be_16(0);
vlan->tpid = odp_cpu_to_be_16(ODPH_ETHTYPE_VLAN);
offset += sizeof(odph_vlanhdr_t);
parseptr += sizeof(odph_vlanhdr_t);
uint16be_t *type = (uint16be_t *)(void *)parseptr;
*type = odp_cpu_to_be_16(ODPH_ETHTYPE_IPV4);
} else {
ethhdr->type = odp_cpu_to_be_16(ODPH_ETHTYPE_IPV4);
}
odp_packet_l3_offset_set(pkt, offset);
/* ipv4 */
ip = (odph_ipv4hdr_t *)odp_packet_l3_ptr(pkt, NULL);
parse_ipv4_string(CLS_DEFAULT_SADDR, &addr, &mask);
ip->dst_addr = odp_cpu_to_be_32(addr);
parse_ipv4_string(CLS_DEFAULT_DADDR, &addr, &mask);
ip->src_addr = odp_cpu_to_be_32(addr);
ip->ver_ihl = ODPH_IPV4 << 4 | ODPH_IPV4HDR_IHL_MIN;
if (flag_udp)
ip->tot_len = odp_cpu_to_be_16(ODPH_UDPHDR_LEN + payload_len +
ODPH_IPV4HDR_LEN);
else
ip->tot_len = odp_cpu_to_be_16(ODPH_TCPHDR_LEN + payload_len +
ODPH_IPV4HDR_LEN);
ip->ttl = 128;
if (flag_udp)
ip->proto = ODPH_IPPROTO_UDP;
else
ip->proto = ODPH_IPPROTO_TCP;
seqno = odp_atomic_fetch_inc_u32(seq);
ip->id = odp_cpu_to_be_16(seqno);
ip->chksum = 0;
ip->chksum = odph_ipv4_csum_update(pkt);
offset += ODPH_IPV4HDR_LEN;
/* udp */
if (flag_udp) {
odp_packet_l4_offset_set(pkt, offset);
udp = (odph_udphdr_t *)odp_packet_l4_ptr(pkt, NULL);
udp->src_port = odp_cpu_to_be_16(CLS_DEFAULT_SPORT);
udp->dst_port = odp_cpu_to_be_16(CLS_DEFAULT_DPORT);
udp->length = odp_cpu_to_be_16(payload_len + ODPH_UDPHDR_LEN);
udp->chksum = 0;
} else {
odp_packet_l4_offset_set(pkt, offset);
tcp = (odph_tcphdr_t *)odp_packet_l4_ptr(pkt, NULL);
tcp->src_port = odp_cpu_to_be_16(CLS_DEFAULT_SPORT);
tcp->dst_port = odp_cpu_to_be_16(CLS_DEFAULT_DPORT);
tcp->hl = ODPH_TCPHDR_LEN / 4;
/* TODO: checksum field has to be updated */
tcp->cksm = 0;
}
/* set pkt sequence number */
cls_pkt_set_seq(pkt);
return pkt;
}
static void test_fragment_fragmented_to_two(void)
{
odp_packet_t pkt_orig, pkt_sent;
odp_event_t ev;
int res;
struct ofp_ether_header *eth;
struct ofp_ip *ip;
struct ofp_ip *ip_orig;
uint16_t pl_pos, pl_len, orig_pl_len, pktlen, start_offset;
dev->if_mtu = 620;
if (create_odp_packet_ip4(&pkt_orig, pkt1_frag2,
sizeof(pkt1_frag2), 0)) {
CU_FAIL("Fail to create packet");
return;
}
res = ofp_ip_output(pkt_orig, &nexthop);
CU_ASSERT_EQUAL(res, OFP_PKT_PROCESSED);
res = ofp_send_pending_pkt();
CU_ASSERT_EQUAL(res, OFP_PKT_PROCESSED);
/* ASSERT 1st fragment */
ev = odp_queue_deq(dev->outq_def);
CU_ASSERT_NOT_EQUAL_FATAL(ev, ODP_EVENT_INVALID);
pkt_sent = odp_packet_from_event(ev);
CU_ASSERT_EQUAL_FATAL(odp_packet_len(pkt_sent),
dev->if_mtu + OFP_ETHER_HDR_LEN);
eth = odp_packet_l2_ptr(pkt_sent, NULL);
if (memcmp(eth->ether_dhost, dst_mac, OFP_ETHER_ADDR_LEN))
CU_FAIL("Bad destination mac address.");
if (memcmp(eth->ether_shost, dev->mac, OFP_ETHER_ADDR_LEN))
CU_FAIL("Bad source mac address.");
ip = odp_packet_l3_ptr(pkt_sent, NULL);
ip_orig = (struct ofp_ip *)(&orig_pkt_data[OFP_ETHER_HDR_LEN]);
orig_pl_len = odp_be_to_cpu_16(ip_orig->ip_len) - (ip_orig->ip_hl<<2);
start_offset = odp_be_to_cpu_16(ip_orig->ip_off) & OFP_IP_OFFMASK;
assert_ip_header(ip, ip_orig, dev->if_mtu, 1, start_offset);
pl_len = dev->if_mtu - (ip->ip_hl<<2);
if (memcmp((uint8_t *)ip + (ip->ip_hl<<2),
(uint8_t *)ip_orig + (ip_orig->ip_hl<<2),
pl_len))
CU_FAIL("corrupt l3 + data forwarded");
pl_pos = pl_len;
CU_PASS("Correct packet");
odp_packet_free(pkt_sent);
/* ASSERT 2nd fragment */
ev = odp_queue_deq(dev->outq_def);
CU_ASSERT_NOT_EQUAL_FATAL(ev, ODP_EVENT_INVALID);
pkt_sent = odp_packet_from_event(ev);
pl_len = orig_pl_len - pl_pos;
pktlen = pl_len + OFP_ETHER_HDR_LEN + sizeof(struct ofp_ip);
CU_ASSERT_EQUAL_FATAL(odp_packet_len(pkt_sent), pktlen);
eth = odp_packet_l2_ptr(pkt_sent, NULL);
if (memcmp(eth->ether_dhost, dst_mac, OFP_ETHER_ADDR_LEN))
CU_FAIL("Bad destination mac address.");
if (memcmp(eth->ether_shost, dev->mac, OFP_ETHER_ADDR_LEN))
CU_FAIL("Bad source mac address.");
ip = odp_packet_l3_ptr(pkt_sent, NULL);
assert_ip_header(ip, ip_orig, pl_len + sizeof(struct ofp_ip),
0, start_offset + pl_pos/8);
if (memcmp((uint8_t *)ip + (ip->ip_hl<<2),
(uint8_t *)ip_orig + (ip_orig->ip_hl<<2) + pl_pos,
pl_len))
CU_FAIL("corrupt l3 + data forwarded");
CU_PASS("Correct packet");
odp_packet_free(pkt_sent);
/* no more fragments */
ev = odp_queue_deq(dev->outq_def);
CU_ASSERT_EQUAL(ev, ODP_EVENT_INVALID);
dev->if_mtu = def_mtu;
}
enum ofp_return_code ofp_nd6_ns_output(struct ofp_ifnet *dev,
uint8_t *daddr6, uint8_t *taddr6)
{
size_t size = 0;
size_t iter = 0;
struct ofp_ether_header *e1;
struct ofp_ether_vlan_header *e2;
struct ofp_ip6_hdr *ip6hdr;
struct ofp_icmp6_hdr *icmp;
odp_packet_t pkt;
if (dev->vlan)
size = sizeof(struct ofp_ether_vlan_header);
else
size = sizeof(struct ofp_ether_header);
size += sizeof(struct ofp_ip6_hdr) + sizeof(struct ofp_icmp6_hdr) +
16 /*target addr*/ + 8; /* option*/
pkt = ofp_packet_alloc(size);
if (pkt == ODP_PACKET_INVALID)
return OFP_PKT_DROP;
odp_packet_has_eth_set(pkt, 1);
odp_packet_l2_offset_set(pkt, iter);
if (dev->vlan) {
e2 = (struct ofp_ether_vlan_header *)odp_packet_l2_ptr(pkt,
NULL);
iter += sizeof(*e2);
memset(e2->evl_dhost, 0xff, OFP_ETHER_ADDR_LEN);
memcpy(e2->evl_shost, dev->mac, OFP_ETHER_ADDR_LEN);
e2->evl_encap_proto = odp_cpu_to_be_16(OFP_ETHERTYPE_VLAN);
e2->evl_tag = odp_cpu_to_be_16(dev->vlan);
e2->evl_proto = odp_cpu_to_be_16(OFP_ETHERTYPE_IPV6);
} else {
e1 = (struct ofp_ether_header *)odp_packet_l2_ptr(pkt, NULL);
iter += sizeof(*e1);
memset(e1->ether_dhost, 0xff, OFP_ETHER_ADDR_LEN);
memcpy(e1->ether_shost, dev->mac, OFP_ETHER_ADDR_LEN);
e1->ether_type = odp_cpu_to_be_16(OFP_ETHERTYPE_IPV6);
}
odp_packet_l3_offset_set(pkt, iter);
ip6hdr = (struct ofp_ip6_hdr *)odp_packet_l3_ptr(pkt, NULL);
iter += sizeof(*ip6hdr);
ip6hdr->ofp_ip6_flow = 0;
ip6hdr->ofp_ip6_vfc = OFP_IPV6_VERSION;
ip6hdr->ofp_ip6_plen = odp_cpu_to_be_16(32);
/*sizeof(*icmp) + sizeof taddr + 8*/
/* for checksum calculation */
ip6hdr->ofp_ip6_nxt = 0;
ip6hdr->ofp_ip6_hlim = OFP_IPPROTO_ICMPV6;
/* XXX should be multicast address*/
memcpy(ip6hdr->ip6_src.ofp_s6_addr, dev->ip6_addr, 16);
if (ofp_ip6_is_set(daddr6))
memcpy(ip6hdr->ip6_dst.ofp_s6_addr, daddr6, 16);
else {
/* Solicited-node multicast address */
ip6hdr->ip6_dst.ofp_s6_addr16[0] = OFP_IPV6_ADDR_INT16_MLL;
ip6hdr->ip6_dst.ofp_s6_addr16[1] = 0;
ip6hdr->ip6_dst.ofp_s6_addr32[1] = 0;
ip6hdr->ip6_dst.ofp_s6_addr32[2] = OFP_IPV6_ADDR_INT32_ONE;
ip6hdr->ip6_dst.ofp_s6_addr32[3] = *((uint32_t *)taddr6 + 3);
ip6hdr->ip6_dst.ofp_s6_addr[12] = 0xff;
}
odp_packet_l4_offset_set(pkt, iter);
icmp = (struct ofp_icmp6_hdr *)odp_packet_l4_ptr(pkt, NULL);
iter += sizeof(*icmp) + 8 /* option */;
icmp->icmp6_type = OFP_ND_NEIGHBOR_SOLICIT;
icmp->icmp6_code = 0;
icmp->icmp6_cksum = 0;
icmp->ofp_icmp6_data32[0] = 0; /* Reserved */
memcpy(&icmp->ofp_icmp6_data8[4], taddr6, 16);
/* Option: Source link-layer address */
icmp->ofp_icmp6_data8[20] = OFP_ND_OPT_SOURCE_LINKADDR;
icmp->ofp_icmp6_data8[21] = 1; /* 8 octets */
memcpy(&icmp->ofp_icmp6_data8[22], dev->mac, 6);
icmp->icmp6_cksum = ofp_cksum_buffer(&ip6hdr->ofp_ip6_plen, 68);
ip6hdr->ofp_ip6_nxt = OFP_IPPROTO_ICMPV6;
ip6hdr->ofp_ip6_hlim = 255;
if (send_pkt_out(dev, pkt) == OFP_PKT_DROP) {
OFP_ERR("Drop packet");
odp_packet_free(pkt);
return OFP_PKT_DROP;
}
return OFP_PKT_PROCESSED;
}
static enum ofp_return_code ofp_fragment_pkt(odp_packet_t pkt,
struct ofp_ifnet *dev_out,
uint8_t is_local_address)
{
struct ofp_ip *ip, *ip_new;
uint16_t vlan = dev_out->vlan;
int tot_len, pl_len, seg_len, pl_pos, flen, hwlen;
uint16_t frag, frag_new;
uint8_t *payload_new;
uint32_t payload_offset;
odp_pool_t pkt_pool;
odp_packet_t pkt_new;
struct ofp_ether_header *eth, *eth_new;
struct ofp_ether_vlan_header *eth_vlan, *eth_new_vlan;
int ret = OFP_PKT_PROCESSED;
if (!vlan)
eth = odp_packet_l2_ptr(pkt, NULL);
else
eth_vlan = odp_packet_l2_ptr(pkt, NULL);
ip = (struct ofp_ip *)odp_packet_l3_ptr(pkt, NULL);
pkt_pool = ofp_packet_pool;
tot_len = odp_be_to_cpu_16(ip->ip_len);
pl_len = tot_len - (ip->ip_hl<<2);
seg_len = (dev_out->if_mtu - sizeof(struct ofp_ip)) & 0xfff8;
pl_pos = 0;
frag = odp_be_to_cpu_16(ip->ip_off);
payload_offset = odp_packet_l3_offset(pkt) + (ip->ip_hl<<2);
OFP_UPDATE_PACKET_STAT(tx_eth_frag, 1);
while (pl_pos < pl_len) {
flen = (pl_len - pl_pos) > seg_len ?
seg_len : (pl_len - pl_pos);
hwlen = flen + sizeof(struct ofp_ip) +
(vlan ? sizeof(struct ofp_ether_vlan_header) :
sizeof(struct ofp_ether_header));
pkt_new = odp_packet_alloc(pkt_pool, hwlen);
if (pkt_new == ODP_PACKET_INVALID) {
OFP_ERR("odp_packet_alloc failed");
return OFP_PKT_DROP;
}
odp_packet_user_ptr_set(pkt_new, odp_packet_user_ptr(pkt));
odp_packet_l2_offset_set(pkt_new, 0);
if (vlan) {
eth_new_vlan = odp_packet_l2_ptr(pkt_new, NULL);
*eth_new_vlan = *eth_vlan;
ip_new = (struct ofp_ip *)(eth_new_vlan + 1);
odp_packet_l3_offset_set(pkt_new,
OFP_ETHER_HDR_LEN +
OFP_ETHER_VLAN_ENCAP_LEN);
} else {
eth_new = odp_packet_l2_ptr(pkt_new, NULL);
*eth_new = *eth;
ip_new = (struct ofp_ip *)(eth_new + 1);
odp_packet_l3_offset_set(pkt_new,
OFP_ETHER_HDR_LEN);
}
*ip_new = *ip;
payload_new = (uint8_t *)(ip_new + 1);
if (odp_packet_copydata_out(pkt, payload_offset + pl_pos,
flen, payload_new) < 0) {
OFP_ERR("odp_packet_copydata_out failed");
return OFP_PKT_DROP;
};
ip_new->ip_len = odp_cpu_to_be_16(flen + sizeof(*ip_new));
frag_new = frag + pl_pos/8;
pl_pos += flen;
if (pl_pos < pl_len)
frag_new |= OFP_IP_MF;
ip_new->ip_off = odp_cpu_to_be_16(frag_new);
ip_new->ip_sum = 0;
ip_new->ip_sum = ofp_cksum_buffer((uint16_t *)ip_new,
sizeof(*ip_new));
if (is_local_address)
ret = send_pkt_loop(dev_out, pkt_new);
else
ret = send_pkt_out(dev_out, pkt_new);
if (ret == OFP_PKT_DROP) {
odp_packet_free(pkt_new);
return OFP_PKT_DROP;
}
}
odp_packet_free(pkt);
return OFP_PKT_PROCESSED;
}
enum ofp_return_code ofp_eth_vlan_processing(odp_packet_t pkt)
{
uint16_t vlan = 0, ethtype;
struct ofp_ether_header *eth;
struct ofp_ifnet *ifnet = odp_packet_user_ptr(pkt);
eth = (struct ofp_ether_header *)odp_packet_l2_ptr(pkt, NULL);
#ifndef OFP_PERFORMANCE
if (odp_unlikely(eth == NULL)) {
OFP_DBG("eth is NULL");
return OFP_PKT_DROP;
}
if (odp_unlikely(odp_packet_l3_ptr(pkt, NULL) == NULL ||
(uintptr_t) odp_packet_l3_ptr(pkt, NULL) !=
(uintptr_t)odp_packet_l2_ptr(pkt, NULL) +
sizeof(struct ofp_ether_header))) {
OFP_DBG("odp_packet_l3_offset_set");
odp_packet_l3_offset_set(pkt, sizeof(struct ofp_ether_header));
}
#endif
ethtype = odp_be_to_cpu_16(eth->ether_type);
if (ethtype == OFP_ETHERTYPE_VLAN) {
struct ofp_ether_vlan_header *vlan_hdr;
vlan_hdr = (struct ofp_ether_vlan_header *)eth;
vlan = OFP_EVL_VLANOFTAG(odp_be_to_cpu_16(vlan_hdr->evl_tag));
ethtype = odp_be_to_cpu_16(vlan_hdr->evl_proto);
ifnet = ofp_get_ifnet(ifnet->port, vlan);
if (!ifnet)
return OFP_PKT_DROP;
if (odp_likely(ifnet->port != VXLAN_PORTS))
odp_packet_user_ptr_set(pkt, ifnet);
#ifndef OFP_PERFORMANCE
odp_packet_l3_offset_set(pkt, sizeof(struct ofp_ether_vlan_header));
#endif
}
OFP_DBG("ETH TYPE = %04x", ethtype);
/* network layer classifier */
switch (ethtype) {
/* STUB: except for ARP, just terminate all traffic to slowpath.
* FIXME: test/implement other cases */
#ifdef INET
case OFP_ETHERTYPE_IP:
return ofp_ipv4_processing(pkt);
#endif /* INET */
#ifdef INET6
case OFP_ETHERTYPE_IPV6:
return ofp_ipv6_processing(pkt);
#endif /* INET6 */
#if 0
case OFP_ETHERTYPE_MPLS:
return OFP_PKT_DROP;
#endif
case OFP_ETHERTYPE_ARP:
return ofp_arp_processing(pkt);
default:
return OFP_PKT_CONTINUE;
}
}
static void
test_ofp_packet_input_forwarding_to_output(void)
{
odp_packet_t pkt;
odp_event_t ev;
int res;
/* Call ofp_packet_input using a pkt with destination ip
* that does NOT match the local ip on ifnet and a route is found.
* ARP is found for gateway IP.
* Function returns OFP_PKT_PROCESSED and
* packet is forwarded to ofp_ip_output.*/
unsigned char ll_addr[13] = "123456789012";
my_test_val = TEST_FORWARD_HOOK;
CU_ASSERT_EQUAL(
ofp_ipv4_lookup_mac(dst_ipaddr + 1, ll_addr, ifnet), -1);
CU_ASSERT_EQUAL(
ofp_arp_ipv4_insert(dst_ipaddr + 1, ll_addr, ifnet), 0);
if (create_odp_packet_ip4(&pkt, test_frame, sizeof(test_frame),
dst_ipaddr, 0)) {
CU_FAIL("Fail to create packet");
return;
}
res = ofp_packet_input(pkt, interface_queue[port],
ofp_eth_vlan_processing);
CU_ASSERT_EQUAL(res, OFP_PKT_PROCESSED);
CU_ASSERT_NOT_EQUAL(ev = odp_queue_deq(ifnet->outq_def),
ODP_EVENT_INVALID);
CU_ASSERT_EQUAL(odp_queue_deq(ifnet->outq_def), ODP_EVENT_INVALID);
#ifdef SP
CU_ASSERT_EQUAL(odp_queue_deq(ifnet->spq_def), ODP_EVENT_INVALID);
#endif /* SP */
CU_ASSERT_EQUAL(odp_packet_len(pkt), sizeof(test_frame));
pkt = odp_packet_from_event(ev);
struct ofp_ip *ip_in_pkt_data =
(struct ofp_ip *)(in_pkt_data + OFP_ETHER_HDR_LEN);
ip_in_pkt_data->ip_ttl--;
#ifdef OFP_PERFORMANCE
/*checksum is not filled on ip_output*/
ip_in_pkt_data->ip_sum =
((struct ofp_ip *)odp_packet_l3_ptr(pkt, NULL))->ip_sum;
#else
ip_in_pkt_data->ip_sum = 0;
ip_in_pkt_data->ip_sum = ofp_cksum_buffer((uint16_t *)ip_in_pkt_data,
ip_in_pkt_data->ip_hl<<2);
#endif
if (memcmp((uint8_t *)odp_packet_data(pkt) + odp_packet_l3_offset(pkt),
in_pkt_data + OFP_ETHER_HDR_LEN,
sizeof(test_frame) - OFP_ETHER_HDR_LEN))
CU_FAIL("corrupt l3 + data forwarded");
struct ofp_ether_header *eth =
(struct ofp_ether_header *)odp_packet_l2_ptr(pkt, NULL);
if (memcmp(eth->ether_dhost, ll_addr, OFP_ETHER_ADDR_LEN))
CU_FAIL("Bad destination mac address on the forwarded packet");
CU_ASSERT_EQUAL(eth->ether_type, odp_cpu_to_be_16(OFP_ETHERTYPE_IP));
CU_PASS("ofp_packet_input_forwarding_to_output");
}
enum ofp_return_code ofp_arp_processing(odp_packet_t pkt)
{
struct ofp_arphdr *arp;
struct ofp_ifnet *dev = odp_packet_user_ptr(pkt);
struct ofp_ifnet *outdev = dev;
uint16_t vlan = dev->vlan;
uint8_t inner_from_mac[OFP_ETHER_ADDR_LEN];
arp = (struct ofp_arphdr *)odp_packet_l3_ptr(pkt, NULL);
if (odp_unlikely(arp == NULL)) {
OFP_DBG("arp is NULL");
return OFP_PKT_DROP;
}
/* save the received arp info */
if (odp_be_to_cpu_16(arp->op) == OFP_ARPOP_REPLY)
ofp_add_mac(dev, arp->ip_src, arp->eth_src);
OFP_DBG("Device IP: %s, Packet Dest IP: %s",
ofp_print_ip_addr(dev->ip_addr),
ofp_print_ip_addr(arp->ip_dst));
/* Check for VXLAN interface */
if (odp_unlikely(!PHYS_PORT(dev->port))) {
switch (dev->port) {
case GRE_PORTS:
/* Never happens. */
break;
case VXLAN_PORTS: {
ofp_vxlan_update_devices(arp, &vlan, &dev, &outdev,
inner_from_mac);
break;
}
} /* switch */
}
/* on our interface an ARP request */
if ((dev->ip_addr) && dev->ip_addr == (ofp_in_addr_t)(arp->ip_dst) &&
odp_be_to_cpu_16(arp->op) == OFP_ARPOP_REQUEST) {
struct ofp_arphdr tmp;
struct ofp_ether_header tmp_eth;
struct ofp_ether_vlan_header tmp_eth_vlan;
void *l2_addr = odp_packet_l2_ptr(pkt, NULL);
struct ofp_ether_header *eth =
(struct ofp_ether_header *)l2_addr;
struct ofp_ether_vlan_header *eth_vlan =
(struct ofp_ether_vlan_header *)l2_addr;
ofp_add_mac(dev, arp->ip_src, arp->eth_src);
if (vlan)
tmp_eth_vlan = *eth_vlan;
else
tmp_eth = *eth;
OFP_DBG("Reply to ARPOP_REQ from ip %s"
#ifdef SP
"on IF %d"
#endif
" mac %s ip %s",
ofp_print_ip_addr(arp->ip_src),
#ifdef SP
dev->linux_index,
#endif
ofp_print_mac(dev->mac),
ofp_print_ip_addr(arp->ip_dst));
tmp = *arp;
tmp.ip_dst = arp->ip_src;
tmp.ip_src = arp->ip_dst;
memcpy(&tmp.eth_dst, &arp->eth_src, OFP_ETHER_ADDR_LEN);
memcpy(&tmp.eth_src, dev->mac, OFP_ETHER_ADDR_LEN);
tmp.op = odp_cpu_to_be_16(OFP_ARPOP_REPLY);
*arp = tmp;
if (vlan) {
memcpy(tmp_eth_vlan.evl_dhost, &arp->eth_dst,
OFP_ETHER_ADDR_LEN);
memcpy(tmp_eth_vlan.evl_shost, &arp->eth_src,
OFP_ETHER_ADDR_LEN);
*eth_vlan = tmp_eth_vlan;
} else {
memcpy(tmp_eth.ether_dhost, &arp->eth_dst,
OFP_ETHER_ADDR_LEN);
memcpy(tmp_eth.ether_shost, &arp->eth_src,
OFP_ETHER_ADDR_LEN);
*eth = tmp_eth;
}
if (odp_unlikely(!PHYS_PORT(dev->port))) {
switch (dev->port) {
case GRE_PORTS:
/* Never happens. */
break;
case VXLAN_PORTS: {
/* Restore the original vxlan header and
update the addresses */
ofp_vxlan_restore_and_update_header
(pkt, outdev, inner_from_mac);
break;
}
} /* switch */
} /* not phys port */
return send_pkt_out(outdev, pkt);
}
return OFP_PKT_CONTINUE;
}