- if (a->fib_index == rx_fib_index) \
- { \
- s->o2i.match.daddr = a->addr; \
- /* first try port suggested by caller */ \
- u16 port = clib_net_to_host_u16 (*outside_port); \
- u16 port_offset = port - port_thread_offset; \
- if (port <= port_thread_offset || \
- port > port_thread_offset + port_per_thread) \
- { \
- /* need to pick a different port, suggested port doesn't fit in \
- * this thread's port range */ \
- port_offset = snat_random_port (0, port_per_thread - 1); \
- port = port_thread_offset + port_offset; \
- } \
- u16 attempts = ED_PORT_ALLOC_ATTEMPTS; \
- do \
- { \
- if (NAT_PROTOCOL_ICMP == nat_proto) \
- { \
- s->o2i.match.sport = clib_host_to_net_u16 (port); \
- } \
- s->o2i.match.dport = clib_host_to_net_u16 (port); \
- if (0 == \
- nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 2)) \
- { \
- ++a->busy_##n##_port_refcounts[port]; \
- a->busy_##n##_ports_per_thread[thread_index]++; \
- a->busy_##n##_ports++; \
- *outside_addr = a->addr; \
- *outside_port = clib_host_to_net_u16 (port); \
- return 0; \
- } \
- port_offset = snat_random_port (0, port_per_thread - 1); \
- port = port_thread_offset + port_offset; \
- --attempts; \
- } \
- while (attempts > 0); \
- } \
- else if (a->fib_index == ~0) \
- { \
- ga = a; \
- } \