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path: root/src/plugins/nat/out2in_ed.c
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Diffstat (limited to 'src/plugins/nat/out2in_ed.c')
-rw-r--r--src/plugins/nat/out2in_ed.c219
1 files changed, 120 insertions, 99 deletions
diff --git a/src/plugins/nat/out2in_ed.c b/src/plugins/nat/out2in_ed.c
index 5d759fbfad5..3d081e15313 100644
--- a/src/plugins/nat/out2in_ed.c
+++ b/src/plugins/nat/out2in_ed.c
@@ -103,8 +103,7 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg)
u32 fib_index;
clib_bihash_kv_16_8_t ed_kv;
int i;
- snat_address_t *a;
- snat_session_key_t key;
+ //snat_address_t *a;
snat_main_per_thread_data_t *tsm = vec_elt_at_index (sm->per_thread_data,
ctx->thread_index);
@@ -123,7 +122,7 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg)
}
else
{
- proto = nat_proto_to_ip_proto (s->in2out.protocol);
+ proto = nat_proto_to_ip_proto (s->nat_proto);
l_port = s->in2out.port;
r_port = s->ext_host_port;
}
@@ -132,8 +131,7 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg)
r_addr = &s->ext_host_nat_addr;
r_port = s->ext_host_nat_port;
}
- make_ed_kv (l_addr, r_addr, proto, fib_index, l_port, r_port, ~0, ~0,
- &ed_kv);
+ init_ed_k (&ed_kv, *l_addr, l_port, *r_addr, r_port, fib_index, proto);
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0))
nat_elog_warn ("in2out_ed key del failed");
@@ -143,7 +141,7 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg)
snat_ipfix_logging_nat44_ses_delete (ctx->thread_index,
s->in2out.addr.as_u32,
s->out2in.addr.as_u32,
- s->in2out.protocol,
+ s->nat_proto,
s->in2out.port,
s->out2in.port,
s->in2out.fib_index);
@@ -153,26 +151,27 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg)
&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->in2out.protocol, is_twice_nat_session (s));
+ s->nat_proto, is_twice_nat_session (s));
nat_ha_sdel (&s->out2in.addr, s->out2in.port, &s->ext_host_addr,
- s->ext_host_port, s->out2in.protocol, s->out2in.fib_index,
+ s->ext_host_port, s->nat_proto, s->out2in.fib_index,
ctx->thread_index);
if (is_twice_nat_session (s))
{
for (i = 0; i < vec_len (sm->twice_nat_addresses); i++)
{
- key.protocol = s->in2out.protocol;
- key.port = s->ext_host_nat_port;
- a = sm->twice_nat_addresses + i;
- if (a->addr.as_u32 == s->ext_host_nat_addr.as_u32)
- {
- snat_free_outside_address_and_port (sm->twice_nat_addresses,
- ctx->thread_index,
- &key);
- break;
- }
+ // FIXME TODO this is obviously wrong code ... needs fix!
+ // key.protocol = s->nat_proto;
+ // key.port = s->ext_host_nat_port;
+ // a = sm->twice_nat_addresses + i;
+ // if (a->addr.as_u32 == s->ext_host_nat_addr.as_u32)
+ // {
+ // snat_free_outside_address_and_port (sm->twice_nat_addresses,
+ // ctx->thread_index,
+ // &key);
+ // break;
+ // }
}
}
@@ -180,7 +179,8 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg)
goto delete;
snat_free_outside_address_and_port (sm->addresses, ctx->thread_index,
- &s->out2in);
+ &s->out2in.addr, s->out2in.port,
+ s->nat_proto);
delete:
nat_ed_session_delete (sm, s, ctx->thread_index, 1);
return 1;
@@ -193,8 +193,13 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg)
static snat_session_t *
create_session_for_static_mapping_ed (snat_main_t * sm,
vlib_buffer_t * b,
- snat_session_key_t l_key,
- snat_session_key_t e_key,
+ ip4_address_t i2o_addr,
+ u16 i2o_port,
+ u32 i2o_fib_index,
+ ip4_address_t o2i_addr,
+ u16 o2i_port,
+ u32 o2i_fib_index,
+ nat_protocol_t nat_proto,
vlib_node_runtime_t * node,
u32 rx_fib_index,
u32 thread_index,
@@ -206,7 +211,6 @@ create_session_for_static_mapping_ed (snat_main_t * sm,
udp_header_t *udp;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
clib_bihash_kv_16_8_t kv;
- snat_session_key_t eh_key;
nat44_is_idle_session_ctx_t ctx;
if (PREDICT_FALSE
@@ -217,7 +221,7 @@ create_session_for_static_mapping_ed (snat_main_t * sm,
return 0;
}
- s = nat_ed_session_alloc (sm, thread_index, now, e_key.protocol);
+ s = nat_ed_session_alloc (sm, thread_index, now, nat_proto);
if (!s)
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_USER_SESS_EXCEEDED];
@@ -229,21 +233,24 @@ create_session_for_static_mapping_ed (snat_main_t * sm,
udp = ip4_next_header (ip);
s->ext_host_addr.as_u32 = ip->src_address.as_u32;
- s->ext_host_port = e_key.protocol == NAT_PROTOCOL_ICMP ? 0 : udp->src_port;
+ s->ext_host_port = nat_proto == NAT_PROTOCOL_ICMP ? 0 : udp->src_port;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
if (lb_nat)
s->flags |= SNAT_SESSION_FLAG_LOAD_BALANCING;
if (lb_nat == AFFINITY_LB_NAT)
s->flags |= SNAT_SESSION_FLAG_AFFINITY;
s->flags |= SNAT_SESSION_FLAG_ENDPOINT_DEPENDENT;
- s->out2in = e_key;
- s->in2out = l_key;
- s->in2out.protocol = s->out2in.protocol;
+ s->out2in.addr = o2i_addr;
+ s->out2in.port = o2i_port;
+ s->out2in.fib_index = o2i_fib_index;
+ s->in2out.addr = i2o_addr;
+ s->in2out.port = i2o_port;
+ s->in2out.fib_index = i2o_fib_index;
+ s->nat_proto = nat_proto;
/* Add to lookup tables */
- make_ed_kv (&e_key.addr, &s->ext_host_addr, ip->protocol,
- e_key.fib_index, e_key.port, s->ext_host_port, thread_index,
- s - tsm->sessions, &kv);
+ init_ed_kv (&kv, o2i_addr, o2i_port, s->ext_host_addr, s->ext_host_port,
+ o2i_fib_index, ip->protocol, thread_index, s - tsm->sessions);
ctx.now = now;
ctx.thread_index = thread_index;
if (clib_bihash_add_or_overwrite_stale_16_8 (&sm->out2in_ed, &kv,
@@ -252,11 +259,13 @@ create_session_for_static_mapping_ed (snat_main_t * sm,
nat_elog_notice ("out2in-ed key add failed");
if (twice_nat == TWICE_NAT || (twice_nat == TWICE_NAT_SELF &&
- ip->src_address.as_u32 == l_key.addr.as_u32))
+ ip->src_address.as_u32 == i2o_addr.as_u32))
{
- eh_key.protocol = e_key.protocol;
if (snat_alloc_outside_address_and_port (sm->twice_nat_addresses, 0,
- thread_index, &eh_key,
+ thread_index,
+ nat_proto,
+ &s->ext_host_nat_addr,
+ &s->ext_host_nat_port,
sm->port_per_thread,
tsm->snat_thread_index))
{
@@ -266,18 +275,16 @@ create_session_for_static_mapping_ed (snat_main_t * sm,
nat_elog_notice ("out2in-ed key del failed");
return 0;
}
- s->ext_host_nat_addr.as_u32 = eh_key.addr.as_u32;
- s->ext_host_nat_port = eh_key.port;
s->flags |= SNAT_SESSION_FLAG_TWICE_NAT;
- make_ed_kv (&l_key.addr, &s->ext_host_nat_addr, ip->protocol,
- l_key.fib_index, l_key.port, s->ext_host_nat_port,
- thread_index, s - tsm->sessions, &kv);
+ init_ed_kv (&kv, i2o_addr, i2o_port, s->ext_host_nat_addr,
+ s->ext_host_nat_port, i2o_fib_index, ip->protocol,
+ thread_index, s - tsm->sessions);
}
else
{
- make_ed_kv (&l_key.addr, &s->ext_host_addr, ip->protocol,
- l_key.fib_index, l_key.port, s->ext_host_port, thread_index,
- s - tsm->sessions, &kv);
+ init_ed_kv (&kv, i2o_addr, i2o_port, s->ext_host_addr,
+ s->ext_host_port, i2o_fib_index, ip->protocol,
+ thread_index, s - tsm->sessions);
}
if (clib_bihash_add_or_overwrite_stale_16_8 (&tsm->in2out_ed, &kv,
nat44_i2o_ed_is_idle_session_cb,
@@ -287,7 +294,7 @@ create_session_for_static_mapping_ed (snat_main_t * sm,
snat_ipfix_logging_nat44_ses_create (thread_index,
s->in2out.addr.as_u32,
s->out2in.addr.as_u32,
- s->in2out.protocol,
+ s->nat_proto,
s->in2out.port,
s->out2in.port, s->in2out.fib_index);
@@ -296,13 +303,12 @@ create_session_for_static_mapping_ed (snat_main_t * sm,
&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->in2out.protocol, is_twice_nat_session (s));
+ s->nat_proto, is_twice_nat_session (s));
nat_ha_sadd (&s->in2out.addr, s->in2out.port, &s->out2in.addr,
s->out2in.port, &s->ext_host_addr, s->ext_host_port,
&s->ext_host_nat_addr, s->ext_host_nat_port,
- s->in2out.protocol, s->in2out.fib_index, s->flags,
- thread_index, 0);
+ s->nat_proto, s->in2out.fib_index, s->flags, thread_index, 0);
return s;
}
@@ -314,8 +320,8 @@ next_src_nat (snat_main_t * sm, ip4_header_t * ip, u16 src_port,
clib_bihash_kv_16_8_t kv, value;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
- make_ed_kv (&ip->src_address, &ip->dst_address, ip->protocol,
- rx_fib_index, src_port, dst_port, ~0, ~0, &kv);
+ 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 (&tsm->in2out_ed, &kv, &value))
return 1;
@@ -353,8 +359,8 @@ create_bypass_for_fwd (snat_main_t * sm, vlib_buffer_t * b, ip4_header_t * ip,
l_port = 0;
r_port = 0;
}
- make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol,
- rx_fib_index, l_port, r_port, ~0, ~0, &kv);
+ init_ed_k (&kv, ip->dst_address, l_port, ip->src_address, r_port,
+ rx_fib_index, ip->protocol);
}
if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &kv, &value))
@@ -387,14 +393,16 @@ create_bypass_for_fwd (snat_main_t * sm, vlib_buffer_t * b, ip4_header_t * ip,
s->flags |= SNAT_SESSION_FLAG_FWD_BYPASS;
s->out2in.addr = ip->dst_address;
s->out2in.port = l_port;
- s->out2in.protocol = proto;
+ 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 = 0;
- s->in2out = s->out2in;
+ s->in2out.addr = s->out2in.addr;
+ s->in2out.port = s->out2in.port;
+ s->in2out.fib_index = s->out2in.fib_index;
kv.value = s - tsm->sessions;
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &kv, 1))
@@ -431,24 +439,28 @@ create_bypass_for_fwd_worker (snat_main_t * sm, vlib_buffer_t * b,
#ifndef CLIB_MARCH_VARIANT
u32
icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node,
- u32 thread_index, vlib_buffer_t * b, ip4_header_t * ip,
- u8 * p_proto, snat_session_key_t * p_value,
- u8 * p_dont_translate, void *d, void *e)
+ u32 thread_index, vlib_buffer_t * b,
+ ip4_header_t * ip, ip4_address_t * addr,
+ u16 * port, u32 * fib_index, nat_protocol_t * proto,
+ void *d, void *e, u8 * dont_translate)
{
u32 next = ~0, sw_if_index, rx_fib_index;
clib_bihash_kv_16_8_t kv, value;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
snat_session_t *s = 0;
- u8 dont_translate = 0, is_addr_only, identity_nat;
- snat_session_key_t e_key, l_key;
+ u8 is_addr_only, identity_nat;
u16 l_port, r_port;
vlib_main_t *vm = vlib_get_main ();
+ ip4_address_t sm_addr;
+ u16 sm_port;
+ u32 sm_fib_index;
+ *dont_translate = 0;
sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
rx_fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
if (get_icmp_o2i_ed_key
- (b, ip, rx_fib_index, ~0, ~0, p_proto, &l_port, &r_port, &kv))
+ (b, ip, rx_fib_index, ~0, ~0, proto, &l_port, &r_port, &kv))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_UNSUPPORTED_PROTOCOL];
next = NAT_NEXT_DROP;
@@ -458,12 +470,10 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node,
if (clib_bihash_search_16_8 (&sm->out2in_ed, &kv, &value))
{
/* Try to match static mapping */
- e_key.addr = ip->dst_address;
- e_key.port = l_port;
- e_key.protocol = ip_proto_to_nat_proto (ip->protocol);
- e_key.fib_index = rx_fib_index;
if (snat_static_mapping_match
- (sm, e_key, &l_key, 1, &is_addr_only, 0, 0, 0, &identity_nat))
+ (sm, ip->dst_address, l_port, 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))
{
if (!sm->forwarding_enabled)
{
@@ -471,7 +481,7 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node,
if (PREDICT_FALSE (is_interface_addr (sm, node, sw_if_index,
ip->dst_address.as_u32)))
{
- dont_translate = 1;
+ *dont_translate = 1;
goto out;
}
b->error = node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION];
@@ -480,7 +490,7 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node,
}
else
{
- dont_translate = 1;
+ *dont_translate = 1;
if (next_src_nat (sm, ip, l_port, r_port,
thread_index, rx_fib_index))
{
@@ -508,14 +518,18 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node,
if (PREDICT_FALSE (identity_nat))
{
- dont_translate = 1;
+ *dont_translate = 1;
goto out;
}
/* Create session initiated by host from external network */
- s = create_session_for_static_mapping_ed (sm, b, l_key, e_key, node,
- rx_fib_index, thread_index, 0,
- 0, vlib_time_now (vm));
+ s =
+ create_session_for_static_mapping_ed (sm, b, sm_addr, sm_port,
+ sm_fib_index, ip->dst_address,
+ l_port, rx_fib_index, *proto,
+ node, rx_fib_index,
+ thread_index, 0, 0,
+ vlib_time_now (vm));
if (!s)
{
@@ -545,8 +559,11 @@ icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node,
}
out:
if (s)
- *p_value = s->in2out;
- *p_dont_translate = dont_translate;
+ {
+ *addr = s->in2out.addr;
+ *port = s->in2out.port;
+ *fib_index = s->in2out.fib_index;
+ }
if (d)
*(snat_session_t **) d = s;
return next;
@@ -572,8 +589,8 @@ nat44_ed_out2in_unknown_proto (snat_main_t * sm,
old_addr = ip->dst_address.as_u32;
- make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol, rx_fib_index,
- 0, 0, ~0, ~0, &s_kv);
+ init_ed_k (&s_kv, ip->dst_address, 0, ip->src_address, 0, rx_fib_index,
+ ip->protocol);
if (!clib_bihash_search_16_8 (&sm->out2in_ed, &s_kv, &s_value))
{
@@ -594,7 +611,7 @@ nat44_ed_out2in_unknown_proto (snat_main_t * sm,
return 0;
}
- make_sm_kv (&kv, &ip->dst_address, 0, 0, 0);
+ init_nat_k (&kv, ip->dst_address, 0, 0, 0);
if (clib_bihash_search_8_8
(&sm->static_mapping_by_external, &kv, &value))
{
@@ -630,8 +647,8 @@ nat44_ed_out2in_unknown_proto (snat_main_t * sm,
if (clib_bihash_add_del_16_8 (&sm->out2in_ed, &s_kv, 1))
nat_elog_notice ("out2in key add failed");
- make_ed_kv (&ip->dst_address, &ip->src_address, ip->protocol,
- m->fib_index, 0, 0, thread_index, s - tsm->sessions, &s_kv);
+ init_ed_kv (&s_kv, ip->dst_address, 0, ip->src_address, 0, m->fib_index,
+ ip->protocol, thread_index, s - tsm->sessions);
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &s_kv, 1))
nat_elog_notice ("in2out key add failed");
}
@@ -738,10 +755,10 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
goto trace0;
}
- make_ed_kv (&ip0->dst_address, &ip0->src_address,
- ip0->protocol, rx_fib_index0,
- vnet_buffer (b0)->ip.reass.l4_dst_port,
- vnet_buffer (b0)->ip.reass.l4_src_port, ~0, ~0, &kv0);
+ init_ed_k (&kv0, ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_dst_port, ip0->src_address,
+ vnet_buffer (b0)->ip.reass.l4_src_port, rx_fib_index0,
+ ip0->protocol);
/* there is a stashed index in vnet_buffer2 from handoff node,
* see if we can use it */
@@ -757,8 +774,7 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
(s0->out2in.addr.as_u32 == ip0->dst_address.as_u32
&& s0->out2in.port ==
vnet_buffer (b0)->ip.reass.l4_dst_port
- && s0->out2in.protocol ==
- ip_proto_to_nat_proto (ip0->protocol)
+ && s0->nat_proto == ip_proto_to_nat_proto (ip0->protocol)
&& s0->out2in.fib_index == rx_fib_index0
&& s0->ext_host_addr.as_u32 == ip0->src_address.as_u32
&& s0->ext_host_port ==
@@ -991,10 +1007,12 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
snat_session_t *s0 = 0;
clib_bihash_kv_16_8_t kv0, value0;
ip_csum_t sum0;
- snat_session_key_t e_key0, l_key0;
lb_nat_type_t lb_nat0;
twice_nat_type_t twice_nat0;
u8 identity_nat0;
+ ip4_address_t sm_addr;
+ u16 sm_port;
+ u32 sm_fib_index;
/* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
@@ -1053,10 +1071,10 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
goto trace0;
}
- make_ed_kv (&ip0->dst_address, &ip0->src_address,
- ip0->protocol, rx_fib_index0,
- vnet_buffer (b0)->ip.reass.l4_dst_port,
- vnet_buffer (b0)->ip.reass.l4_src_port, ~0, ~0, &kv0);
+ init_ed_k (&kv0, ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_dst_port, ip0->src_address,
+ vnet_buffer (b0)->ip.reass.l4_src_port, rx_fib_index0,
+ ip0->protocol);
s0 = NULL;
if (!clib_bihash_search_16_8 (&sm->out2in_ed, &kv0, &value0))
@@ -1078,15 +1096,12 @@ nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t * vm,
{
/* Try to match static mapping by external address and port,
destination address and port in packet */
- e_key0.addr = ip0->dst_address;
- e_key0.port = vnet_buffer (b0)->ip.reass.l4_dst_port;
- e_key0.protocol = proto0;
- e_key0.fib_index = rx_fib_index0;
-
- if (snat_static_mapping_match (sm, e_key0, &l_key0, 1, 0,
- &twice_nat0, &lb_nat0,
- &ip0->src_address,
- &identity_nat0))
+
+ if (snat_static_mapping_match
+ (sm, ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0,
+ proto0, &sm_addr, &sm_port, &sm_fib_index, 1, 0,
+ &twice_nat0, &lb_nat0, &ip0->src_address, &identity_nat0))
{
/*
* Send DHCP packets to the ipv4 stack, or we won't
@@ -1140,12 +1155,18 @@ 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, l_key0,
- e_key0, node,
+ 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);
+ twice_nat0, lb_nat0,
+ now);
if (!s0)
{
next0 = NAT_NEXT_DROP;