#include "dynamic-string.h"
#include "ofpbuf.h"
#include "ovs-thread.h"
+#include "odp-util.h"
#include "unaligned.h"
const struct in6_addr in6addr_exact = IN6ADDR_EXACT_INIT;
if (ovsthread_once_start(&once)) {
hmap_init(&addrs);
for (node = nodes; node < &nodes[ARRAY_SIZE(nodes)]; node++) {
- hmap_insert(&addrs, &node->hmap_node,
- hash_2words(node->ea64, node->ea64 >> 32));
+ hmap_insert(&addrs, &node->hmap_node, hash_uint64(node->ea64));
}
ovsthread_once_done(&once);
}
ea64 = eth_addr_to_uint64(ea);
- HMAP_FOR_EACH_IN_BUCKET (node, hmap_node, hash_2words(ea64, ea64 >> 32),
- &addrs) {
+ HMAP_FOR_EACH_IN_BUCKET (node, hmap_node, hash_uint64(ea64), &addrs) {
if (node->ea64 == ea64) {
return true;
}
bool
eth_addr_from_string(const char *s, uint8_t ea[ETH_ADDR_LEN])
{
- if (sscanf(s, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(ea))
- == ETH_ADDR_SCAN_COUNT) {
+ if (ovs_scan(s, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(ea))) {
return true;
} else {
memset(ea, 0, ETH_ADDR_LEN);
*
* Also sets 'packet->l2' to point to the new Ethernet header. */
void
-eth_push_vlan(struct ofpbuf *packet, ovs_be16 tci)
+eth_push_vlan(struct ofpbuf *packet, ovs_be16 tpid, ovs_be16 tci)
{
struct eth_header *eh = packet->data;
struct vlan_eth_header *veh;
struct vlan_eth_header tmp;
memcpy(tmp.veth_dst, eh->eth_dst, ETH_ADDR_LEN);
memcpy(tmp.veth_src, eh->eth_src, ETH_ADDR_LEN);
- tmp.veth_type = htons(ETH_TYPE_VLAN);
+ tmp.veth_type = tpid;
tmp.veth_tci = tci & htons(~VLAN_CFI);
tmp.veth_next_type = eh->eth_type;
}
}
-/* Return depth of mpls stack.
- *
- * 'packet->l2_5' should initially point to 'packet''s outer-most MPLS header
- * or may be NULL if there are no MPLS headers. */
-uint16_t
-eth_mpls_depth(const struct ofpbuf *packet)
-{
- struct mpls_hdr *mh = packet->l2_5;
- uint16_t depth;
-
- if (!mh) {
- return 0;
- }
-
- depth = 0;
- while (packet->size >= ((char *)mh - (char *)packet->data) + sizeof *mh) {
- depth++;
- if (mh->mpls_lse & htonl(MPLS_BOS_MASK)) {
- break;
- }
- mh++;
- }
-
- return depth;
-}
-
/* Set ethertype of the packet. */
-void
+static void
set_ethertype(struct ofpbuf *packet, ovs_be16 eth_type)
{
struct eth_header *eh = packet->data;
return;
}
+ set_ethertype(packet, ethtype);
+
if (!is_mpls(packet)) {
- /* Set ethtype and MPLS label stack entry. */
- set_ethertype(packet, ethtype);
+ /* Set MPLS label stack entry. */
packet->l2_5 = packet->l3;
}
int
ip_count_cidr_bits(ovs_be32 netmask)
{
- return 32 - ctz(ntohl(netmask));
+ return 32 - ctz32(ntohl(netmask));
}
void
{
struct ip_header *nh = packet->l3;
ovs_be32 old_addr = get_16aligned_be32(addr);
+ size_t l4_size = ofpbuf_get_l4_size(packet);
- if (nh->ip_proto == IPPROTO_TCP && packet->l7) {
+ if (nh->ip_proto == IPPROTO_TCP && l4_size >= TCP_HEADER_LEN) {
struct tcp_header *th = packet->l4;
th->tcp_csum = recalc_csum32(th->tcp_csum, old_addr, new_addr);
- } else if (nh->ip_proto == IPPROTO_UDP && packet->l7) {
+ } else if (nh->ip_proto == IPPROTO_UDP && l4_size >= UDP_HEADER_LEN ) {
struct udp_header *uh = packet->l4;
if (uh->udp_csum) {
packet_update_csum128(struct ofpbuf *packet, uint8_t proto,
ovs_16aligned_be32 addr[4], const ovs_be32 new_addr[4])
{
- if (proto == IPPROTO_TCP && packet->l7) {
+ size_t l4_size = ofpbuf_get_l4_size(packet);
+
+ if (proto == IPPROTO_TCP && l4_size >= TCP_HEADER_LEN) {
struct tcp_header *th = packet->l4;
th->tcp_csum = recalc_csum128(th->tcp_csum, addr, new_addr);
- } else if (proto == IPPROTO_UDP && packet->l7) {
+ } else if (proto == IPPROTO_UDP && l4_size >= UDP_HEADER_LEN) {
struct udp_header *uh = packet->l4;
if (uh->udp_csum) {
static void
packet_set_ipv6_addr(struct ofpbuf *packet, uint8_t proto,
- ovs_16aligned_be32 *addr, const ovs_be32 new_addr[4],
+ ovs_16aligned_be32 addr[4], const ovs_be32 new_addr[4],
bool recalculate_csum)
{
if (recalculate_csum) {
packet_update_csum128(packet, proto, addr, new_addr);
}
- memcpy(addr, new_addr, sizeof(*addr));
+ memcpy(addr, new_addr, sizeof(ovs_be32[4]));
}
static void
sh->sctp_csum = old_csum ^ old_correct_csum ^ new_csum;
}
-/* If 'packet' is a TCP packet, returns the TCP flags. Otherwise, returns 0.
- *
- * 'flow' must be the flow corresponding to 'packet' and 'packet''s header
- * pointers must be properly initialized (e.g. with flow_extract()). */
-uint8_t
-packet_get_tcp_flags(const struct ofpbuf *packet, const struct flow *flow)
-{
- if (dl_type_is_ip_any(flow->dl_type) &&
- flow->nw_proto == IPPROTO_TCP && packet->l7) {
- const struct tcp_header *tcp = packet->l4;
- return TCP_FLAGS(tcp->tcp_ctl);
- } else {
- return 0;
+const char *
+packet_tcp_flag_to_string(uint32_t flag)
+{
+ switch (flag) {
+ case TCP_FIN:
+ return "fin";
+ case TCP_SYN:
+ return "syn";
+ case TCP_RST:
+ return "rst";
+ case TCP_PSH:
+ return "psh";
+ case TCP_ACK:
+ return "ack";
+ case TCP_URG:
+ return "urg";
+ case TCP_ECE:
+ return "ece";
+ case TCP_CWR:
+ return "cwr";
+ case TCP_NS:
+ return "ns";
+ case 0x200:
+ return "[200]";
+ case 0x400:
+ return "[400]";
+ case 0x800:
+ return "[800]";
+ default:
+ return NULL;
}
}
/* Appends a string representation of the TCP flags value 'tcp_flags'
- * (e.g. obtained via packet_get_tcp_flags() or TCP_FLAGS) to 's', in the
+ * (e.g. from struct flow.tcp_flags or obtained via TCP_FLAGS) to 's', in the
* format used by tcpdump. */
void
-packet_format_tcp_flags(struct ds *s, uint8_t tcp_flags)
+packet_format_tcp_flags(struct ds *s, uint16_t tcp_flags)
{
if (!tcp_flags) {
ds_put_cstr(s, "none");
if (tcp_flags & TCP_ACK) {
ds_put_char(s, '.');
}
- if (tcp_flags & 0x40) {
- ds_put_cstr(s, "[40]");
+ if (tcp_flags & TCP_ECE) {
+ ds_put_cstr(s, "E");
+ }
+ if (tcp_flags & TCP_CWR) {
+ ds_put_cstr(s, "C");
+ }
+ if (tcp_flags & TCP_NS) {
+ ds_put_cstr(s, "N");
+ }
+ if (tcp_flags & 0x200) {
+ ds_put_cstr(s, "[200]");
+ }
+ if (tcp_flags & 0x400) {
+ ds_put_cstr(s, "[400]");
}
- if (tcp_flags & 0x80) {
- ds_put_cstr(s, "[80]");
+ if (tcp_flags & 0x800) {
+ ds_put_cstr(s, "[800]");
}
}