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-rw-r--r--src/plugins/nat/nat44-ed/nat44_ed_out2in.c353
1 files changed, 209 insertions, 144 deletions
diff --git a/src/plugins/nat/nat44-ed/nat44_ed_out2in.c b/src/plugins/nat/nat44-ed/nat44_ed_out2in.c
index 5ad57a17098..cb21b0f62c5 100644
--- a/src/plugins/nat/nat44-ed/nat44_ed_out2in.c
+++ b/src/plugins/nat/nat44-ed/nat44_ed_out2in.c
@@ -25,6 +25,7 @@
#include <vnet/udp/udp_local.h>
#include <vppinfra/error.h>
+#include <nat/lib/nat_syslog.h>
#include <nat/lib/ipfix_logging.h>
#include <nat/nat44-ed/nat44_ed.h>
@@ -126,8 +127,8 @@ next_src_nat (snat_main_t *sm, ip4_header_t *ip, u16 src_port, u16 dst_port,
{
clib_bihash_kv_16_8_t kv, value;
- init_ed_k (&kv, ip->src_address.as_u32, src_port, ip->dst_address.as_u32,
- dst_port, rx_fib_index, ip->protocol);
+ init_ed_k (&kv, ip->src_address, src_port, ip->dst_address, dst_port,
+ rx_fib_index, ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
return 1;
@@ -141,8 +142,8 @@ static void create_bypass_for_fwd (snat_main_t *sm, vlib_buffer_t *b,
static snat_session_t *create_session_for_static_mapping_ed (
snat_main_t *sm, vlib_buffer_t *b, ip4_address_t i2o_addr, u16 i2o_port,
u32 i2o_fib_index, ip4_address_t o2i_addr, u16 o2i_port, u32 o2i_fib_index,
- ip_protocol_t proto, vlib_node_runtime_t *node, u32 thread_index,
- twice_nat_type_t twice_nat, lb_nat_type_t lb_nat, f64 now,
+ nat_protocol_t nat_proto, vlib_node_runtime_t *node, u32 rx_fib_index,
+ u32 thread_index, twice_nat_type_t twice_nat, lb_nat_type_t lb_nat, f64 now,
snat_static_mapping_t *mapping);
static inline u32
@@ -179,10 +180,10 @@ icmp_out2in_ed_slow_path (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
goto out;
}
- if (snat_static_mapping_match (vm, sm, ip->dst_address, lookup_sport,
- rx_fib_index, ip->protocol, &sm_addr,
- &sm_port, &sm_fib_index, 1, &is_addr_only, 0,
- 0, 0, &identity_nat, &m))
+ if (snat_static_mapping_match (
+ vm, sm, ip->dst_address, lookup_sport, rx_fib_index,
+ ip_proto_to_nat_proto (ip->protocol), &sm_addr, &sm_port,
+ &sm_fib_index, 1, &is_addr_only, 0, 0, 0, &identity_nat, &m))
{
// static mapping not matched
if (!sm->forwarding_enabled)
@@ -228,8 +229,8 @@ icmp_out2in_ed_slow_path (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
/* Create session initiated by host from external network */
s = create_session_for_static_mapping_ed (
sm, b, sm_addr, sm_port, sm_fib_index, ip->dst_address, lookup_sport,
- rx_fib_index, lookup_protocol, node, thread_index, 0, 0,
- vlib_time_now (vm), m);
+ rx_fib_index, ip_proto_to_nat_proto (lookup_protocol), node, rx_fib_index,
+ thread_index, 0, 0, vlib_time_now (vm), m);
if (!s)
next = NAT_NEXT_DROP;
@@ -264,29 +265,44 @@ out:
return next;
}
+// allocate exact address based on preference
static_always_inline int
-nat44_ed_alloc_i2o_port (snat_main_t *sm, snat_address_t *a, snat_session_t *s,
- ip4_address_t i2o_addr, u16 i2o_port,
- u32 i2o_fib_index, ip_protocol_t proto,
- u32 thread_index, u32 snat_thread_index,
- ip4_address_t *outside_addr, u16 *outside_port)
+nat_alloc_addr_and_port_exact (snat_address_t * a,
+ u32 thread_index,
+ nat_protocol_t proto,
+ ip4_address_t * addr,
+ u16 * port,
+ u16 port_per_thread, u32 snat_thread_index)
{
+ snat_main_t *sm = &snat_main;
u32 portnum;
- for (int i = 0; i < ED_PORT_ALLOC_ATTEMPTS; ++i)
+ switch (proto)
{
- portnum = (sm->port_per_thread * snat_thread_index) +
- snat_random_port (0, sm->port_per_thread - 1) + 1024;
- portnum = clib_host_to_net_u16 (portnum);
- nat_6t_i2o_flow_init (sm, thread_index, s, i2o_addr, i2o_port, a->addr,
- portnum, i2o_fib_index, proto);
- if (!nat_ed_ses_i2o_flow_hash_add_del (sm, thread_index, s,
- 1 /* is_add */))
- {
- *outside_addr = a->addr;
- *outside_port = portnum;
- return 0;
- }
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \
+ { \
+ while (1) \
+ { \
+ portnum = (port_per_thread * \
+ snat_thread_index) + \
+ snat_random_port(0, port_per_thread - 1) + 1024; \
+ if (a->busy_##n##_port_refcounts[portnum]) \
+ continue; \
+ --a->busy_##n##_port_refcounts[portnum]; \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
+ a->busy_##n##_ports++; \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16(portnum); \
+ return 0; \
+ } \
+ } \
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ return 1;
}
/* Totally out of translations to use... */
@@ -295,56 +311,80 @@ nat44_ed_alloc_i2o_port (snat_main_t *sm, snat_address_t *a, snat_session_t *s,
}
static_always_inline int
-nat44_ed_alloc_i2o_addr_and_port (snat_main_t *sm, snat_address_t *addresses,
- snat_session_t *s, ip4_address_t i2o_addr,
- u16 i2o_port, u32 i2o_fib_index,
- ip_protocol_t proto, u32 thread_index,
- u32 snat_thread_index,
- ip4_address_t *outside_addr,
- u16 *outside_port)
+nat44_ed_alloc_outside_addr_and_port (snat_address_t *addresses, u32 fib_index,
+ u32 thread_index, nat_protocol_t proto,
+ ip4_address_t *addr, u16 *port,
+ u16 port_per_thread,
+ u32 snat_thread_index)
{
+ snat_main_t *sm = &snat_main;
snat_address_t *a, *ga = 0;
+ u32 portnum;
int i;
- if (vec_len (addresses) > 0)
+ for (i = 0; i < vec_len (addresses); i++)
{
- int s_addr_offset = i2o_addr.as_u32 % vec_len (addresses);
-
- for (i = s_addr_offset; i < vec_len (addresses); ++i)
+ a = addresses + i;
+ switch (proto)
{
- a = addresses + i;
- if (a->fib_index == i2o_fib_index)
- {
- return nat44_ed_alloc_i2o_port (
- sm, a, s, i2o_addr, i2o_port, i2o_fib_index, proto,
- thread_index, snat_thread_index, outside_addr, outside_port);
- }
- else if (a->fib_index == ~0)
- {
- ga = a;
- }
- }
-
- for (i = 0; i < s_addr_offset; ++i)
- {
- a = addresses + i;
- if (a->fib_index == i2o_fib_index)
- {
- return nat44_ed_alloc_i2o_port (
- sm, a, s, i2o_addr, i2o_port, i2o_fib_index, proto,
- thread_index, snat_thread_index, outside_addr, outside_port);
- }
- else if (a->fib_index == ~0)
- {
- ga = a;
- }
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \
+ { \
+ if (a->fib_index == fib_index) \
+ { \
+ while (1) \
+ { \
+ portnum = (port_per_thread * snat_thread_index) + \
+ snat_random_port (0, port_per_thread - 1) + 1024; \
+ if (a->busy_##n##_port_refcounts[portnum]) \
+ continue; \
+ --a->busy_##n##_port_refcounts[portnum]; \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
+ a->busy_##n##_ports++; \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16 (portnum); \
+ return 0; \
+ } \
+ } \
+ else if (a->fib_index == ~0) \
+ { \
+ ga = a; \
+ } \
+ } \
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ return 1;
}
+ }
- if (ga)
+ if (ga)
+ {
+ a = ga;
+ switch (proto)
{
- return nat44_ed_alloc_i2o_port (
- sm, a, s, i2o_addr, i2o_port, i2o_fib_index, proto, thread_index,
- snat_thread_index, outside_addr, outside_port);
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ while (1) \
+ { \
+ portnum = (port_per_thread * snat_thread_index) + \
+ snat_random_port (0, port_per_thread - 1) + 1024; \
+ if (a->busy_##n##_port_refcounts[portnum]) \
+ continue; \
+ ++a->busy_##n##_port_refcounts[portnum]; \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
+ a->busy_##n##_ports++; \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16 (portnum); \
+ return 0; \
+ }
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ return 1;
}
}
@@ -357,23 +397,23 @@ static snat_session_t *
create_session_for_static_mapping_ed (
snat_main_t *sm, vlib_buffer_t *b, ip4_address_t i2o_addr, u16 i2o_port,
u32 i2o_fib_index, ip4_address_t o2i_addr, u16 o2i_port, u32 o2i_fib_index,
- ip_protocol_t proto, vlib_node_runtime_t *node, u32 thread_index,
- twice_nat_type_t twice_nat, lb_nat_type_t lb_nat, f64 now,
+ nat_protocol_t nat_proto, vlib_node_runtime_t *node, u32 rx_fib_index,
+ u32 thread_index, twice_nat_type_t twice_nat, lb_nat_type_t lb_nat, f64 now,
snat_static_mapping_t *mapping)
{
snat_session_t *s;
ip4_header_t *ip;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
- if (PREDICT_FALSE (
- nat44_ed_maximum_sessions_exceeded (sm, o2i_fib_index, thread_index)))
+ if (PREDICT_FALSE
+ (nat44_ed_maximum_sessions_exceeded (sm, rx_fib_index, thread_index)))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_SESSIONS_EXCEEDED];
nat_elog_notice (sm, "maximum sessions exceeded");
return 0;
}
- s = nat_ed_session_alloc (sm, thread_index, now, proto);
+ s = nat_ed_session_alloc (sm, thread_index, now, nat_proto);
if (!s)
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_SESSIONS_EXCEEDED];
@@ -385,7 +425,7 @@ create_session_for_static_mapping_ed (
s->ext_host_addr.as_u32 = ip->src_address.as_u32;
s->ext_host_port =
- proto == IP_PROTOCOL_ICMP ? 0 : vnet_buffer (b)->ip.reass.l4_src_port;
+ nat_proto == NAT_PROTOCOL_ICMP ? 0 : vnet_buffer (b)->ip.reass.l4_src_port;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
if (lb_nat)
s->flags |= SNAT_SESSION_FLAG_LOAD_BALANCING;
@@ -397,9 +437,9 @@ create_session_for_static_mapping_ed (
s->in2out.addr = i2o_addr;
s->in2out.port = i2o_port;
s->in2out.fib_index = i2o_fib_index;
- s->proto = proto;
+ s->nat_proto = nat_proto;
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_o2i_flow_init (sm, thread_index, s, s->ext_host_addr, o2i_port,
o2i_addr, o2i_port, o2i_fib_index, ip->protocol);
@@ -445,23 +485,33 @@ create_session_for_static_mapping_ed (
if (filter)
{
- rc = nat44_ed_alloc_i2o_port (
- sm, filter, s, i2o_addr, i2o_port, i2o_fib_index, proto,
- thread_index, tsm->snat_thread_index, &s->ext_host_nat_addr,
- &s->ext_host_nat_port);
+ rc = nat_alloc_addr_and_port_exact (filter,
+ thread_index,
+ nat_proto,
+ &s->ext_host_nat_addr,
+ &s->ext_host_nat_port,
+ sm->port_per_thread,
+ tsm->snat_thread_index);
s->flags |= SNAT_SESSION_FLAG_EXACT_ADDRESS;
}
else
{
- rc = nat44_ed_alloc_i2o_addr_and_port (
- sm, sm->twice_nat_addresses, s, i2o_addr, i2o_port, i2o_fib_index,
- proto, thread_index, tsm->snat_thread_index, &s->ext_host_nat_addr,
- &s->ext_host_nat_port);
+ rc = nat44_ed_alloc_outside_addr_and_port (
+ sm->twice_nat_addresses, 0, thread_index, nat_proto,
+ &s->ext_host_nat_addr, &s->ext_host_nat_port, sm->port_per_thread,
+ tsm->snat_thread_index);
}
if (rc)
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_OUT_OF_PORTS];
+ if (nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 0))
+ {
+ nat_elog_warn (sm, "out2in flow hash del failed");
+ }
+ snat_free_outside_address_and_port (
+ sm->twice_nat_addresses, thread_index, &s->ext_host_nat_addr,
+ s->ext_host_nat_port, s->nat_proto);
nat_ed_session_delete (sm, s, thread_index, 1);
return 0;
}
@@ -469,7 +519,7 @@ create_session_for_static_mapping_ed (
s->flags |= SNAT_SESSION_FLAG_TWICE_NAT;
nat_6t_flow_saddr_rewrite_set (&s->o2i, s->ext_host_nat_addr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->o2i, s->ext_host_nat_port);
}
@@ -480,8 +530,11 @@ create_session_for_static_mapping_ed (
nat_6t_l3_l4_csum_calc (&s->o2i);
+ nat_6t_i2o_flow_init (sm, thread_index, s, i2o_addr, i2o_port,
+ s->ext_host_nat_addr, s->ext_host_nat_port,
+ i2o_fib_index, ip->protocol);
nat_6t_flow_daddr_rewrite_set (&s->i2o, s->ext_host_addr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->i2o, s->ext_host_port);
}
@@ -489,21 +542,10 @@ create_session_for_static_mapping_ed (
{
nat_6t_flow_dport_rewrite_set (&s->i2o, s->ext_host_port);
}
-
- nat_6t_flow_saddr_rewrite_set (&s->i2o, o2i_addr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
- {
- nat_6t_flow_icmp_id_rewrite_set (&s->i2o, o2i_port);
- }
- else
- {
- nat_6t_flow_sport_rewrite_set (&s->i2o, o2i_port);
- }
- nat_6t_l3_l4_csum_calc (&s->i2o);
}
else
{
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_i2o_flow_init (sm, thread_index, s, i2o_addr, i2o_port,
s->ext_host_addr, i2o_port, i2o_fib_index,
@@ -515,9 +557,10 @@ create_session_for_static_mapping_ed (
s->ext_host_addr, s->ext_host_port,
i2o_fib_index, ip->protocol);
}
+ }
nat_6t_flow_saddr_rewrite_set (&s->i2o, o2i_addr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->i2o, o2i_port);
}
@@ -536,15 +579,18 @@ create_session_for_static_mapping_ed (
nat_ed_session_delete (sm, s, thread_index, 1);
return 0;
}
- }
- nat_ipfix_logging_nat44_ses_create (
- thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, s->proto,
- s->in2out.port, s->out2in.port, s->in2out.fib_index);
+
+ nat_ipfix_logging_nat44_ses_create (thread_index,
+ s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->nat_proto,
+ s->in2out.port,
+ s->out2in.port, s->in2out.fib_index);
nat_syslog_nat44_sadd (0, s->in2out.fib_index, &s->in2out.addr,
s->in2out.port, &s->ext_host_nat_addr,
s->ext_host_nat_port, &s->out2in.addr, s->out2in.port,
- &s->ext_host_addr, s->ext_host_port, s->proto,
+ &s->ext_host_addr, s->ext_host_port, s->nat_proto,
nat44_ed_is_twice_nat_session (s));
per_vrf_sessions_register_session (s, thread_index);
@@ -588,8 +634,8 @@ create_bypass_for_fwd (snat_main_t *sm, vlib_buffer_t *b, snat_session_t *s,
lookup_protocol = ip->protocol;
}
- init_ed_k (&kv, lookup_saddr.as_u32, lookup_sport, lookup_daddr.as_u32,
- lookup_dport, rx_fib_index, lookup_protocol);
+ init_ed_k (&kv, lookup_saddr, lookup_sport, lookup_daddr, lookup_dport,
+ rx_fib_index, lookup_protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
{
@@ -606,6 +652,8 @@ create_bypass_for_fwd (snat_main_t *sm, vlib_buffer_t *b, snat_session_t *s,
}
else
{
+ u32 proto;
+
if (PREDICT_FALSE
(nat44_ed_maximum_sessions_exceeded
(sm, rx_fib_index, thread_index)))
@@ -618,12 +666,19 @@ create_bypass_for_fwd (snat_main_t *sm, vlib_buffer_t *b, snat_session_t *s,
return;
}
+ proto = ip_proto_to_nat_proto (ip->protocol);
+
s->ext_host_addr = ip->src_address;
s->ext_host_port = lookup_dport;
s->flags |= SNAT_SESSION_FLAG_FWD_BYPASS;
s->out2in.addr = ip->dst_address;
s->out2in.port = lookup_sport;
- s->proto = ip->protocol;
+ s->nat_proto = proto;
+ if (proto == NAT_PROTOCOL_OTHER)
+ {
+ s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO;
+ s->out2in.port = ip->protocol;
+ }
s->out2in.fib_index = rx_fib_index;
s->in2out.addr = s->out2in.addr;
s->in2out.port = s->out2in.port;
@@ -664,6 +719,7 @@ nat44_ed_out2in_slowpath_unknown_proto (snat_main_t *sm, vlib_buffer_t *b,
vlib_main_t *vm,
vlib_node_runtime_t *node)
{
+ clib_bihash_kv_8_8_t kv, value;
snat_static_mapping_t *m;
snat_session_t *s;
@@ -675,13 +731,15 @@ nat44_ed_out2in_slowpath_unknown_proto (snat_main_t *sm, vlib_buffer_t *b,
return 0;
}
- m = nat44_ed_sm_o2i_lookup (sm, ip->dst_address, 0, 0, ip->protocol);
- if (!m)
+ init_nat_k (&kv, ip->dst_address, 0, 0, 0);
+ if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION];
return 0;
}
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+
/* Create a new session */
s = nat_ed_session_alloc (sm, thread_index, now, ip->protocol);
if (!s)
@@ -692,6 +750,7 @@ nat44_ed_out2in_slowpath_unknown_proto (snat_main_t *sm, vlib_buffer_t *b,
}
s->ext_host_addr.as_u32 = ip->src_address.as_u32;
+ s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
s->out2in.addr.as_u32 = ip->dst_address.as_u32;
s->out2in.fib_index = rx_fib_index;
@@ -754,7 +813,7 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
{
vlib_buffer_t *b0;
u32 sw_if_index0, rx_fib_index0;
- ip_protocol_t proto0;
+ nat_protocol_t proto0;
ip4_header_t *ip0;
snat_session_t *s0 = 0;
clib_bihash_kv_16_8_t kv0, value0;
@@ -803,9 +862,9 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
goto trace0;
}
- proto0 = ip0->protocol;
+ proto0 = ip_proto_to_nat_proto (ip0->protocol);
- if (PREDICT_FALSE (proto0 == IP_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
{
if (vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags !=
ICMP4_echo_request &&
@@ -854,8 +913,8 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
s0 = NULL;
}
- init_ed_k (&kv0, lookup.saddr.as_u32, lookup.sport, lookup.daddr.as_u32,
- lookup.dport, lookup.fib_index, lookup.proto);
+ init_ed_k (&kv0, lookup.saddr, lookup.sport, lookup.daddr, lookup.dport,
+ lookup.fib_index, lookup.proto);
// lookup flow
if (clib_bihash_search_16_8 (&sm->flow_hash, &kv0, &value0))
@@ -876,7 +935,7 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
if (PREDICT_FALSE (per_vrf_sessions_is_expired (s0, thread_index)))
{
// session is closed, go slow path
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
slow_path_reason = NAT_ED_SP_REASON_VRF_EXPIRED;
next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
@@ -907,7 +966,7 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
if (now >= sess_timeout_time)
{
// session is closed, go slow path
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
slow_path_reason = NAT_ED_SP_SESS_EXPIRED;
next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
@@ -930,7 +989,7 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
* be able to use dhcp client on the outside interface
*/
if (PREDICT_FALSE (
- proto0 == IP_PROTOCOL_UDP &&
+ proto0 == NAT_PROTOCOL_UDP &&
(vnet_buffer (b0)->ip.reass.l4_dst_port ==
clib_host_to_net_u16 (UDP_DST_PORT_dhcp_to_client))))
{
@@ -955,7 +1014,7 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
// create_bypass_for_fwd (sm, b0, s0, ip0, rx_fib_index0,
// thread_index);
translation_error = NAT_ED_TRNSL_ERR_FLOW_MISMATCH;
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_TRNSL_FAILED];
@@ -975,7 +1034,7 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
switch (proto0)
{
- case IP_PROTOCOL_TCP:
+ case NAT_PROTOCOL_TCP:
vlib_increment_simple_counter (&sm->counters.fastpath.out2in.tcp,
thread_index, sw_if_index0, 1);
nat44_set_tcp_session_state_o2i (sm, now, s0,
@@ -987,15 +1046,15 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
reass.tcp_seq_number,
thread_index);
break;
- case IP_PROTOCOL_UDP:
+ case NAT_PROTOCOL_UDP:
vlib_increment_simple_counter (&sm->counters.fastpath.out2in.udp,
thread_index, sw_if_index0, 1);
break;
- case IP_PROTOCOL_ICMP:
+ case NAT_PROTOCOL_ICMP:
vlib_increment_simple_counter (&sm->counters.fastpath.out2in.icmp,
thread_index, sw_if_index0, 1);
break;
- default:
+ case NAT_PROTOCOL_OTHER:
vlib_increment_simple_counter (&sm->counters.fastpath.out2in.other,
thread_index, sw_if_index0, 1);
break;
@@ -1073,7 +1132,7 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
{
vlib_buffer_t *b0;
u32 sw_if_index0, rx_fib_index0;
- ip_protocol_t proto0;
+ nat_protocol_t proto0;
ip4_header_t *ip0;
udp_header_t *udp0;
icmp46_header_t *icmp0;
@@ -1109,9 +1168,9 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
udp0 = ip4_next_header (ip0);
icmp0 = (icmp46_header_t *) udp0;
- proto0 = ip0->protocol;
+ proto0 = ip_proto_to_nat_proto (ip0->protocol);
- if (PREDICT_FALSE (nat44_ed_is_unk_proto (proto0)))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_OTHER))
{
s0 = nat44_ed_out2in_slowpath_unknown_proto (
sm, b0, ip0, rx_fib_index0, thread_index, now, vm, node);
@@ -1136,7 +1195,7 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
goto trace0;
}
- if (PREDICT_FALSE (proto0 == IP_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
{
next[0] = icmp_out2in_ed_slow_path
(sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
@@ -1158,10 +1217,10 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
goto trace0;
}
- init_ed_k (
- &kv0, ip0->src_address.as_u32, vnet_buffer (b0)->ip.reass.l4_src_port,
- ip0->dst_address.as_u32, vnet_buffer (b0)->ip.reass.l4_dst_port,
- rx_fib_index0, ip0->protocol);
+ init_ed_k (&kv0, ip0->src_address,
+ vnet_buffer (b0)->ip.reass.l4_src_port, ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0,
+ ip0->protocol);
s0 = NULL;
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv0, &value0))
@@ -1173,7 +1232,7 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
if (s0->tcp_closed_timestamp && now >= s0->tcp_closed_timestamp)
{
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
s0 = NULL;
}
@@ -1194,10 +1253,10 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
* Send DHCP packets to the ipv4 stack, or we won't
* be able to use dhcp client on the outside interface
*/
- if (PREDICT_FALSE (
- proto0 == IP_PROTOCOL_UDP &&
- (vnet_buffer (b0)->ip.reass.l4_dst_port ==
- clib_host_to_net_u16 (UDP_DST_PORT_dhcp_to_client))))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_UDP
+ && (vnet_buffer (b0)->ip.reass.l4_dst_port ==
+ clib_host_to_net_u16
+ (UDP_DST_PORT_dhcp_to_client))))
{
goto trace0;
}
@@ -1228,9 +1287,9 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
if (PREDICT_FALSE (identity_nat0))
goto trace0;
- if ((proto0 == IP_PROTOCOL_TCP) &&
- !tcp_flags_is_init (
- vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags))
+ if ((proto0 == NAT_PROTOCOL_TCP)
+ && !tcp_flags_is_init (vnet_buffer (b0)->ip.
+ reass.icmp_type_or_tcp_flags))
{
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_NON_SYN];
next[0] = NAT_NEXT_DROP;
@@ -1238,10 +1297,16 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
}
/* Create session initiated by host from external network */
- s0 = create_session_for_static_mapping_ed (
- sm, b0, sm_addr, sm_port, sm_fib_index, ip0->dst_address,
- vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0, proto0,
- node, thread_index, twice_nat0, lb_nat0, now, m);
+ s0 = create_session_for_static_mapping_ed (sm, b0,
+ sm_addr, sm_port,
+ sm_fib_index,
+ ip0->dst_address,
+ vnet_buffer (b0)->
+ ip.reass.l4_dst_port,
+ rx_fib_index0, proto0,
+ node, rx_fib_index0,
+ thread_index, twice_nat0,
+ lb_nat0, now, m);
if (!s0)
{
next[0] = NAT_NEXT_DROP;
@@ -1257,7 +1322,7 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
goto trace0;
}
- if (PREDICT_TRUE (proto0 == IP_PROTOCOL_TCP))
+ if (PREDICT_TRUE (proto0 == NAT_PROTOCOL_TCP))
{
vlib_increment_simple_counter (&sm->counters.slowpath.out2in.tcp,
thread_index, sw_if_index0, 1);