/* Returns true if 'wc' is exact-match, false if 'wc' wildcards any bits or
* fields. */
bool
flow_wildcards_is_exact(const struct flow_wildcards *wc)
{
int i;
BUILD_ASSERT_DECL(FLOW_WC_SEQ == 14);
if (wc->wildcards
|| wc->tun_id_mask != htonll(UINT64_MAX)
|| wc->nw_src_mask != htonl(UINT32_MAX)
|| wc->nw_dst_mask != htonl(UINT32_MAX)
|| wc->tp_src_mask != htons(UINT16_MAX)
|| wc->tp_dst_mask != htons(UINT16_MAX)
|| wc->vlan_tci_mask != htons(UINT16_MAX)
|| wc->metadata_mask != htonll(UINT64_MAX)
|| !eth_mask_is_exact(wc->dl_src_mask)
|| !eth_mask_is_exact(wc->dl_dst_mask)
|| !eth_mask_is_exact(wc->arp_sha_mask)
|| !eth_mask_is_exact(wc->arp_tha_mask)
|| !ipv6_mask_is_exact(&wc->ipv6_src_mask)
|| !ipv6_mask_is_exact(&wc->ipv6_dst_mask)
|| wc->ipv6_label_mask != htonl(UINT32_MAX)
|| !ipv6_mask_is_exact(&wc->nd_target_mask)
|| wc->nw_frag_mask != UINT8_MAX) {
return false;
}
for (i = 0; i < FLOW_N_REGS; i++) {
if (wc->reg_masks[i] != UINT32_MAX) {
return false;
}
}
return true;
}
void
eth_format_masked(const uint8_t eth[ETH_ADDR_LEN],
const uint8_t mask[ETH_ADDR_LEN], struct ds *s)
{
ds_put_format(s, ETH_ADDR_FMT, ETH_ADDR_ARGS(eth));
if (mask && !eth_mask_is_exact(mask)) {
ds_put_format(s, "/"ETH_ADDR_FMT, ETH_ADDR_ARGS(mask));
}
}
static void
nxm_put_eth_masked(struct ofpbuf *b, uint32_t header,
const uint8_t value[ETH_ADDR_LEN],
const uint8_t mask[ETH_ADDR_LEN])
{
if (!eth_addr_is_zero(mask)) {
if (eth_mask_is_exact(mask)) {
nxm_put_eth(b, header, value);
} else {
nxm_put_header(b, NXM_MAKE_WILD_HEADER(header));
ofpbuf_put(b, value, ETH_ADDR_LEN);
ofpbuf_put(b, mask, ETH_ADDR_LEN);
}
}
}
