#include <vlibmemory/api.h>
#include <cnat/cnat_node.h>
#include <cnat/cnat_translation.h>
+#include <cnat/cnat_inline.h>
+#include <cnat/cnat_src_policy.h>
#include <vnet/dpo/load_balance.h>
#include <vnet/dpo/load_balance_map.h>
+#include <vnet/ip/ip4_inlines.h>
+#include <vnet/ip/ip6_inlines.h>
+
typedef struct cnat_translation_trace_t_
{
cnat_session_t session;
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- cnat_translation_trace_t *t =
- va_arg (*args, cnat_translation_trace_t *);
+ cnat_translation_trace_t *t = va_arg (*args, cnat_translation_trace_t *);
if (t->found_session)
s = format (s, "found: %U", format_cnat_session, &t->session, 1);
else if (t->created_session)
s = format (s, "created: %U\n tr: %U",
format_cnat_session, &t->session, 1,
- format_cnat_translation,
- &t->tr, 0);
+ format_cnat_translation, &t->tr, 0);
else if (t->has_tr)
- s = format (s, "tr pass: %U", format_cnat_translation,
- &t->tr, 0);
+ s = format (s, "tr pass: %U", format_cnat_translation, &t->tr, 0);
else
s = format (s, "not found");
return s;
}
/* CNat sub for NAT behind a fib entry (VIP or interposed real IP) */
-always_inline uword
-cnat_vip_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_buffer_t * b,
- cnat_node_ctx_t * ctx, int rv, cnat_session_t * session)
+static uword
+cnat_vip_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_buffer_t * b,
+ cnat_node_ctx_t * ctx, int rv, cnat_session_t * session)
{
vlib_combined_counter_main_t *cntm = &cnat_translation_counters;
const cnat_translation_t *ct = NULL;
u16 next0;
index_t cti;
int created_session = 0;
+ cnat_src_policy_main_t *cspm = &cnat_src_policy_main;
if (AF_IP4 == ctx->af)
{
ip4 = vlib_buffer_get_current (b);
goto trace;
}
- ct = cnat_find_translation (cc->parent_cci,
- clib_host_to_net_u16 (udp0->dst_port),
- iproto);
-
if (!rv)
{
/* session table hit */
cnat_timestamp_update (session->value.cs_ts_index, ctx->now);
- if (NULL != ct)
+ if (INDEX_INVALID != session->value.cs_lbi)
{
/* Translate & follow the translation given LB */
+ ct = cnat_translation_get (session->value.ct_index);
next0 = ct->ct_lb.dpoi_next_node;
vnet_buffer (b)->ip.adj_index[VLIB_TX] = session->value.cs_lbi;
}
}
else
{
+ ct =
+ cnat_find_translation (cc->parent_cci,
+ clib_host_to_net_u16 (udp0->dst_port), iproto);
if (NULL == ct)
{
/* Dont translate & Follow the fib programming */
hash_c0 = (AF_IP4 == ctx->af ?
ip4_compute_flow_hash (ip4, lb0->lb_hash_config) :
ip6_compute_flow_hash (ip6, lb0->lb_hash_config));
- bucket0 = hash_c0 & lb0->lb_n_buckets_minus_1;
+ bucket0 = hash_c0 % lb0->lb_n_buckets;
dpo0 = load_balance_get_fwd_bucket (lb0, bucket0);
/* add the session */
session->value.cs_port[VLIB_RX] =
clib_host_to_net_u16 (trk0->ct_ep[VLIB_RX].ce_port);
- session->value.flags = 0;
- if (!session->value.cs_port[VLIB_RX])
- {
- u16 sport;
- sport = udp0->src_port;
- /* Allocate a port only if asked and if we actually sNATed */
- if ((ct->flags & CNAT_TRANSLATION_FLAG_ALLOCATE_PORT)
- && (rsession_flags & CNAT_SESSION_FLAG_HAS_SNAT)) {
- sport = 0; /* force allocation */
- session->value.flags |= CNAT_SESSION_FLAG_ALLOC_PORT;
- rv = cnat_allocate_port (&sport, iproto);
- if (rv)
- {
- vlib_node_increment_counter (vm, cnat_vip_ip4_node.index,
- CNAT_ERROR_EXHAUSTED_PORTS, 1);
- next0 = CNAT_TRANSLATION_NEXT_DROP;
- goto trace;
- }
- }
+ session->value.ct_index = ct - cnat_translation_pool;
+ session->value.cs_lbi = dpo0->dpoi_index;
- session->value.cs_port[VLIB_RX] = sport;
+ rv = cspm->vip_policy (vm, b, session, &rsession_flags, ct, ctx);
+ if (CNAT_SOURCE_ERROR_USE_DEFAULT == rv)
+ rv = cspm->default_policy (vm, b, session, &rsession_flags, ct, ctx);
+ if (rv)
+ {
+ if (CNAT_SOURCE_ERROR_EXHAUSTED_PORTS == rv)
+ vlib_node_increment_counter (vm, cnat_vip_ip4_node.index,
+ CNAT_ERROR_EXHAUSTED_PORTS, 1);
+ next0 = CNAT_TRANSLATION_NEXT_DROP;
+ goto trace;
}
- session->value.cs_lbi = dpo0->dpoi_index;
/* refcnt session in current client */
cnat_client_cnt_session (cc);
{
cti = ct - cnat_translation_pool;
vlib_increment_combined_counter (cntm, ctx->thread_index, cti, 1,
- vlib_buffer_length_in_chain (vm, b));
+ vlib_buffer_length_in_chain (vm, b));
}
trace:
}
VLIB_NODE_FN (cnat_vip_ip4_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
- return cnat_node_inline (vm, node, frame, cnat_vip_inline, AF_IP4,
- 1 /* do_trace */ );
- return cnat_node_inline (vm, node, frame, cnat_vip_inline, AF_IP4,
- 0 /* do_trace */ );
+ return cnat_node_inline (vm, node, frame, cnat_vip_node_fn, AF_IP4,
+ 1 /* do_trace */ );
+ return cnat_node_inline (vm, node, frame, cnat_vip_node_fn, AF_IP4,
+ 0 /* do_trace */ );
}
VLIB_NODE_FN (cnat_vip_ip6_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
- return cnat_node_inline (vm, node, frame, cnat_vip_inline, AF_IP6,
- 1 /* do_trace */ );
- return cnat_node_inline (vm, node, frame, cnat_vip_inline, AF_IP6,
- 0 /* do_trace */ );
+ return cnat_node_inline (vm, node, frame, cnat_vip_node_fn, AF_IP6,
+ 1 /* do_trace */ );
+ return cnat_node_inline (vm, node, frame, cnat_vip_node_fn, AF_IP6,
+ 0 /* do_trace */ );
}
/* *INDENT-OFF* */
};
/* *INDENT-ON* */
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff