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authorMatus Fabian <matfabia@cisco.com>2018-09-20 23:18:41 -0700
committerMatus Fabian <matfabia@cisco.com>2018-09-21 04:07:37 -0700
commitab395ec884d0ec9279893b1695379e97acd1f24d (patch)
treef04db4d5da24c6598fe3b2aae29d937fa267de9c /src/plugins/nat/nat.c
parent22030434ac9a3a7296617b996268e79dbf8bbffa (diff)
NAT: Refactoring / Housekeeping (VPP-1415)
Change-Id: Ia3ce24cc94f9b2fb331ad62a4181ddcd41bc78ca Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat.c')
-rwxr-xr-xsrc/plugins/nat/nat.c2701
1 files changed, 990 insertions, 1711 deletions
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c
index d4c266a2b16..efca4404ddd 100755
--- a/src/plugins/nat/nat.c
+++ b/src/plugins/nat/nat.c
@@ -36,6 +36,7 @@
snat_main_t snat_main;
+/* *INDENT-OFF* */
/* Hook up input features */
VNET_FEATURE_INIT (ip4_snat_in2out, static) = {
@@ -166,42 +167,12 @@ VNET_FEATURE_INIT (ip4_nat44_ed_hairpinning, static) =
};
-/* *INDENT-OFF* */
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
.description = "Network Address Translation",
};
/* *INDENT-ON* */
-vlib_node_registration_t nat44_classify_node;
-vlib_node_registration_t nat44_ed_classify_node;
-vlib_node_registration_t nat44_det_classify_node;
-vlib_node_registration_t nat44_handoff_classify_node;
-
-#define foreach_nat44_classify_error \
-_(MAX_REASS, "Maximum reassemblies exceeded") \
-_(MAX_FRAG, "Maximum fragments per reassembly exceeded")
-
-typedef enum {
-#define _(sym,str) NAT44_CLASSIFY_ERROR_##sym,
- foreach_nat44_classify_error
-#undef _
- NAT44_CLASSIFY_N_ERROR,
-} nat44_classify_error_t;
-
-static char * nat44_classify_error_strings[] = {
-#define _(sym,string) string,
- foreach_nat44_classify_error
-#undef _
-};
-
-typedef enum {
- NAT44_CLASSIFY_NEXT_IN2OUT,
- NAT44_CLASSIFY_NEXT_OUT2IN,
- NAT44_CLASSIFY_NEXT_DROP,
- NAT44_CLASSIFY_N_NEXT,
-} nat44_classify_next_t;
-
void
nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index)
{
@@ -223,7 +194,7 @@ nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index)
ed_kv.key[0] = ed_key.as_u64[0];
ed_kv.key[1] = ed_key.as_u64[1];
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0))
- nat_log_warn ("in2out_ed key del failed");
+ nat_log_warn ("in2out_ed key del failed");
return;
}
@@ -231,61 +202,60 @@ nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index)
if (is_ed_session (s))
{
if (is_affinity_sessions (s))
- nat_affinity_unlock (s->ext_host_addr, s->out2in.addr,
- s->in2out.protocol, s->out2in.port);
+ nat_affinity_unlock (s->ext_host_addr, s->out2in.addr,
+ s->in2out.protocol, s->out2in.port);
ed_key.l_addr = s->out2in.addr;
ed_key.r_addr = s->ext_host_addr;
ed_key.fib_index = s->out2in.fib_index;
if (snat_is_unk_proto_session (s))
- {
- ed_key.proto = s->in2out.port;
- ed_key.r_port = 0;
- ed_key.l_port = 0;
- }
+ {
+ ed_key.proto = s->in2out.port;
+ ed_key.r_port = 0;
+ ed_key.l_port = 0;
+ }
else
- {
- ed_key.proto = snat_proto_to_ip_proto (s->in2out.protocol);
- ed_key.l_port = s->out2in.port;
- ed_key.r_port = s->ext_host_port;
- }
+ {
+ ed_key.proto = snat_proto_to_ip_proto (s->in2out.protocol);
+ ed_key.l_port = s->out2in.port;
+ ed_key.r_port = s->ext_host_port;
+ }
ed_kv.key[0] = ed_key.as_u64[0];
ed_kv.key[1] = ed_key.as_u64[1];
if (clib_bihash_add_del_16_8 (&tsm->out2in_ed, &ed_kv, 0))
- nat_log_warn ("out2in_ed key del failed");
+ nat_log_warn ("out2in_ed key del failed");
ed_key.l_addr = s->in2out.addr;
ed_key.fib_index = s->in2out.fib_index;
if (!snat_is_unk_proto_session (s))
- ed_key.l_port = s->in2out.port;
+ ed_key.l_port = s->in2out.port;
if (is_twice_nat_session (s))
- {
- ed_key.r_addr = s->ext_host_nat_addr;
- ed_key.r_port = s->ext_host_nat_port;
- }
+ {
+ ed_key.r_addr = s->ext_host_nat_addr;
+ ed_key.r_port = s->ext_host_nat_port;
+ }
ed_kv.key[0] = ed_key.as_u64[0];
ed_kv.key[1] = ed_key.as_u64[1];
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0))
- nat_log_warn ("in2out_ed key del failed");
+ nat_log_warn ("in2out_ed key del failed");
}
else
{
kv.key = s->in2out.as_u64;
if (clib_bihash_add_del_8_8 (&tsm->in2out, &kv, 0))
- nat_log_warn ("in2out key del failed");
+ nat_log_warn ("in2out key del failed");
kv.key = s->out2in.as_u64;
if (clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 0))
- nat_log_warn ("out2in key del failed");
+ nat_log_warn ("out2in key del failed");
}
if (snat_is_unk_proto_session (s))
return;
/* log NAT event */
- snat_ipfix_logging_nat44_ses_delete(s->in2out.addr.as_u32,
- s->out2in.addr.as_u32,
- s->in2out.protocol,
- s->in2out.port,
- s->out2in.port,
- s->in2out.fib_index);
+ snat_ipfix_logging_nat44_ses_delete (s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->in2out.protocol,
+ s->in2out.port,
+ s->out2in.port, s->in2out.fib_index);
/* Twice NAT address and port for external host */
if (is_twice_nat_session (s))
@@ -294,26 +264,25 @@ nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index)
key.port = s->ext_host_nat_port;
key.addr.as_u32 = s->ext_host_nat_addr.as_u32;
snat_free_outside_address_and_port (sm->twice_nat_addresses,
- thread_index, &key);
+ thread_index, &key);
}
if (snat_is_session_static (s))
return;
- if (s->outside_address_index != ~0)
- snat_free_outside_address_and_port (sm->addresses, thread_index,
- &s->out2in);
+ snat_free_outside_address_and_port (sm->addresses, thread_index,
+ &s->out2in);
}
snat_user_t *
-nat_user_get_or_create (snat_main_t *sm, ip4_address_t *addr, u32 fib_index,
- u32 thread_index)
+nat_user_get_or_create (snat_main_t * sm, ip4_address_t * addr, u32 fib_index,
+ u32 thread_index)
{
snat_user_t *u = 0;
snat_user_key_t user_key;
clib_bihash_kv_8_8_t kv, value;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
- dlist_elt_t * per_user_list_head_elt;
+ dlist_elt_t *per_user_list_head_elt;
user_key.addr.as_u32 = addr->as_u32;
user_key.fib_index = fib_index;
@@ -331,7 +300,7 @@ nat_user_get_or_create (snat_main_t *sm, ip4_address_t *addr, u32 fib_index,
pool_get (tsm->list_pool, per_user_list_head_elt);
u->sessions_per_user_list_head_index = per_user_list_head_elt -
- tsm->list_pool;
+ tsm->list_pool;
clib_dlist_init (tsm->list_pool, u->sessions_per_user_list_head_index);
@@ -339,7 +308,7 @@ nat_user_get_or_create (snat_main_t *sm, ip4_address_t *addr, u32 fib_index,
/* add user */
if (clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 1))
- nat_log_warn ("user_hash keay add failed");
+ nat_log_warn ("user_hash keay add failed");
}
else
{
@@ -350,31 +319,32 @@ nat_user_get_or_create (snat_main_t *sm, ip4_address_t *addr, u32 fib_index,
}
snat_session_t *
-nat_session_alloc_or_recycle (snat_main_t *sm, snat_user_t *u, u32 thread_index)
+nat_session_alloc_or_recycle (snat_main_t * sm, snat_user_t * u,
+ u32 thread_index)
{
snat_session_t *s;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
u32 oldest_per_user_translation_list_index, session_index;
- dlist_elt_t * oldest_per_user_translation_list_elt;
- dlist_elt_t * per_user_translation_list_elt;
+ dlist_elt_t *oldest_per_user_translation_list_elt;
+ dlist_elt_t *per_user_translation_list_elt;
/* Over quota? Recycle the least recently used translation */
if ((u->nsessions + u->nstaticsessions) >= sm->max_translations_per_user)
{
oldest_per_user_translation_list_index =
- clib_dlist_remove_head (tsm->list_pool,
- u->sessions_per_user_list_head_index);
+ clib_dlist_remove_head (tsm->list_pool,
+ u->sessions_per_user_list_head_index);
ASSERT (oldest_per_user_translation_list_index != ~0);
/* Add it back to the end of the LRU list */
clib_dlist_addtail (tsm->list_pool,
- u->sessions_per_user_list_head_index,
- oldest_per_user_translation_list_index);
+ u->sessions_per_user_list_head_index,
+ oldest_per_user_translation_list_index);
/* Get the list element */
oldest_per_user_translation_list_elt =
- pool_elt_at_index (tsm->list_pool,
- oldest_per_user_translation_list_index);
+ pool_elt_at_index (tsm->list_pool,
+ oldest_per_user_translation_list_index);
/* Get the session index from the list element */
session_index = oldest_per_user_translation_list_elt->value;
@@ -382,11 +352,10 @@ nat_session_alloc_or_recycle (snat_main_t *sm, snat_user_t *u, u32 thread_index)
/* Get the session */
s = pool_elt_at_index (tsm->sessions, session_index);
nat_free_session_data (sm, s, thread_index);
- if (snat_is_session_static(s))
- u->nstaticsessions--;
+ if (snat_is_session_static (s))
+ u->nstaticsessions--;
else
- u->nsessions--;
- s->outside_address_index = ~0;
+ u->nsessions--;
s->flags = 0;
s->total_bytes = 0;
s->total_pkts = 0;
@@ -400,535 +369,92 @@ nat_session_alloc_or_recycle (snat_main_t *sm, snat_user_t *u, u32 thread_index)
{
pool_get (tsm->sessions, s);
memset (s, 0, sizeof (*s));
- s->outside_address_index = ~0;
/* Create list elts */
pool_get (tsm->list_pool, per_user_translation_list_elt);
clib_dlist_init (tsm->list_pool,
- per_user_translation_list_elt - tsm->list_pool);
+ per_user_translation_list_elt - tsm->list_pool);
per_user_translation_list_elt->value = s - tsm->sessions;
s->per_user_index = per_user_translation_list_elt - tsm->list_pool;
s->per_user_list_head_index = u->sessions_per_user_list_head_index;
clib_dlist_addtail (tsm->list_pool,
- s->per_user_list_head_index,
- per_user_translation_list_elt - tsm->list_pool);
+ s->per_user_list_head_index,
+ per_user_translation_list_elt - tsm->list_pool);
}
return s;
}
snat_session_t *
-nat_ed_session_alloc (snat_main_t *sm, snat_user_t *u, u32 thread_index)
+nat_ed_session_alloc (snat_main_t * sm, snat_user_t * u, u32 thread_index)
{
snat_session_t *s;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
- dlist_elt_t * per_user_translation_list_elt;
+ dlist_elt_t *per_user_translation_list_elt;
if ((u->nsessions + u->nstaticsessions) >= sm->max_translations_per_user)
{
- nat_log_warn ("max translations per user %U", format_ip4_address, &u->addr);
+ nat_log_warn ("max translations per user %U", format_ip4_address,
+ &u->addr);
snat_ipfix_logging_max_entries_per_user (sm->max_translations_per_user,
- u->addr.as_u32);
+ u->addr.as_u32);
return 0;
}
pool_get (tsm->sessions, s);
memset (s, 0, sizeof (*s));
- s->outside_address_index = ~0;
/* Create list elts */
pool_get (tsm->list_pool, per_user_translation_list_elt);
clib_dlist_init (tsm->list_pool,
- per_user_translation_list_elt - tsm->list_pool);
+ per_user_translation_list_elt - tsm->list_pool);
per_user_translation_list_elt->value = s - tsm->sessions;
s->per_user_index = per_user_translation_list_elt - tsm->list_pool;
s->per_user_list_head_index = u->sessions_per_user_list_head_index;
clib_dlist_addtail (tsm->list_pool,
- s->per_user_list_head_index,
- per_user_translation_list_elt - tsm->list_pool);
-
- return s;
-}
-
-typedef struct {
- u8 next_in2out;
- u8 cached;
-} nat44_classify_trace_t;
-
-static u8 * format_nat44_classify_trace (u8 * s, va_list * args)
-{
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- nat44_classify_trace_t *t = va_arg (*args, nat44_classify_trace_t *);
- char *next;
-
- if (t->cached)
- s = format (s, "nat44-classify: fragment cached");
- else
- {
- next = t->next_in2out ? "nat44-in2out" : "nat44-out2in";
- s = format (s, "nat44-classify: next %s", next);
- }
+ s->per_user_list_head_index,
+ per_user_translation_list_elt - tsm->list_pool);
return s;
}
-static inline uword
-nat44_classify_node_fn_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame,
- int is_ed)
-{
- u32 n_left_from, * from, * to_next;
- nat44_classify_next_t next_index;
- snat_main_t *sm = &snat_main;
- snat_static_mapping_t *m;
- u32 thread_index = vm->thread_index;
- snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
- u32 *fragments_to_drop = 0;
- u32 *fragments_to_loopback = 0;
-
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- next_index = node->cached_next_index;
-
- while (n_left_from > 0)
- {
- u32 n_left_to_next;
-
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- vlib_buffer_t *b0;
- u32 next0 = NAT44_CLASSIFY_NEXT_IN2OUT, sw_if_index0, rx_fib_index0;
- ip4_header_t *ip0;
- snat_address_t *ap;
- snat_session_key_t m_key0;
- clib_bihash_kv_8_8_t kv0, value0;
- clib_bihash_kv_16_8_t ed_kv0, ed_value0;
- udp_header_t *udp0;
- nat_reass_ip4_t *reass0;
- u8 cached0 = 0;
-
- /* speculatively enqueue b0 to the current next frame */
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
- ip0 = vlib_buffer_get_current (b0);
- udp0 = ip4_next_header (ip0);
-
- if (is_ed && ip0->protocol != IP_PROTOCOL_ICMP)
- {
- if (!ip4_is_fragment (ip0) || ip4_is_first_fragment (ip0))
- {
- /* process leading fragment/whole packet (with L4 header) */
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- rx_fib_index0 =
- fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
- sw_if_index0);
- make_ed_kv (&ed_kv0, &ip0->src_address, &ip0->dst_address,
- ip0->protocol, rx_fib_index0, udp0->src_port,
- udp0->dst_port);
- if (ip4_is_fragment (ip0))
- {
- reass0 = nat_ip4_reass_find_or_create (ip0->src_address,
- ip0->dst_address,
- ip0->fragment_id,
- ip0->protocol,
- 1,
- &fragments_to_drop);
- if (PREDICT_FALSE (!reass0))
- {
- next0 = NAT44_CLASSIFY_NEXT_DROP;
- b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS];
- nat_log_notice ("maximum reassemblies exceeded");
- goto enqueue0;
- }
- if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &ed_kv0,
- &ed_value0))
- {
- /* session exists so classify as IN2OUT,
- * save this information for future fragments and set
- * past fragments to be looped over and reprocessed */
- reass0->sess_index = ed_value0.value;
- reass0->classify_next = NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT;
- nat_ip4_reass_get_frags (reass0,
- &fragments_to_loopback);
- goto enqueue0;
- }
- else
- {
- /* session doesn't exist so continue in the code,
- * save this information for future fragments and set
- * past fragments to be looped over and reprocessed */
- reass0->flags |= NAT_REASS_FLAG_CLASSIFY_ED_CONTINUE;
- nat_ip4_reass_get_frags (reass0,
- &fragments_to_loopback);
- }
- }
- else
- {
- /* process whole packet */
- if (!clib_bihash_search_16_8 (&tsm->in2out_ed, &ed_kv0,
- &ed_value0))
- goto enqueue0;
- /* session doesn't exist so continue in code */
- }
- }
- else
- {
- /* process non-first fragment */
- reass0 = nat_ip4_reass_find_or_create (ip0->src_address,
- ip0->dst_address,
- ip0->fragment_id,
- ip0->protocol,
- 1,
- &fragments_to_drop);
- if (PREDICT_FALSE (!reass0))
- {
- next0 = NAT44_CLASSIFY_NEXT_DROP;
- b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS];
- nat_log_notice ("maximum reassemblies exceeded");
- goto enqueue0;
- }
- /* check if first fragment has arrived */
- if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NONE &&
- !(reass0->flags & NAT_REASS_FLAG_CLASSIFY_ED_CONTINUE))
- {
- /* first fragment still hasn't arrived, cache this fragment */
- if (nat_ip4_reass_add_fragment (reass0, bi0,
- &fragments_to_drop))
- {
- b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_FRAG];
- nat_log_notice ("maximum fragments per reassembly exceeded");
- next0 = NAT44_CLASSIFY_NEXT_DROP;
- goto enqueue0;
- }
- cached0 = 1;
- goto enqueue0;
- }
- if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT)
- goto enqueue0;
- /* flag NAT_REASS_FLAG_CLASSIFY_ED_CONTINUE is set
- * so keep the default next0 and continue in code to
- * potentially find other classification for this packet */
- }
- }
-
- vec_foreach (ap, sm->addresses)
- {
- if (ip0->dst_address.as_u32 == ap->addr.as_u32)
- {
- next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
- goto enqueue0;
- }
- }
-
- if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
- {
- m_key0.addr = ip0->dst_address;
- m_key0.port = 0;
- m_key0.protocol = 0;
- m_key0.fib_index = 0;
- kv0.key = m_key0.as_u64;
- /* try to classify the fragment based on IP header alone */
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external,
- &kv0, &value0))
- {
- m = pool_elt_at_index (sm->static_mappings, value0.value);
- if (m->local_addr.as_u32 != m->external_addr.as_u32)
- next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
- goto enqueue0;
- }
- if (!ip4_is_fragment (ip0) || ip4_is_first_fragment (ip0))
- {
- /* process leading fragment/whole packet (with L4 header) */
- m_key0.port = clib_net_to_host_u16 (udp0->dst_port);
- m_key0.protocol = ip_proto_to_snat_proto (ip0->protocol);
- kv0.key = m_key0.as_u64;
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external,
- &kv0, &value0))
- {
- m = pool_elt_at_index (sm->static_mappings, value0.value);
- if (m->local_addr.as_u32 != m->external_addr.as_u32)
- next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
- }
- if (ip4_is_fragment (ip0))
- {
- reass0 = nat_ip4_reass_find_or_create (ip0->src_address,
- ip0->dst_address,
- ip0->fragment_id,
- ip0->protocol,
- 1,
- &fragments_to_drop);
- if (PREDICT_FALSE (!reass0))
- {
- next0 = NAT44_CLASSIFY_NEXT_DROP;
- b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS];
- nat_log_notice ("maximum reassemblies exceeded");
- goto enqueue0;
- }
- /* save classification for future fragments and set past
- * fragments to be looped over and reprocessed */
- if (next0 == NAT44_CLASSIFY_NEXT_OUT2IN)
- reass0->classify_next = NAT_REASS_IP4_CLASSIFY_NEXT_OUT2IN;
- else
- reass0->classify_next = NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT;
- nat_ip4_reass_get_frags (reass0, &fragments_to_loopback);
- }
- }
- else
- {
- /* process non-first fragment */
- reass0 = nat_ip4_reass_find_or_create (ip0->src_address,
- ip0->dst_address,
- ip0->fragment_id,
- ip0->protocol,
- 1,
- &fragments_to_drop);
- if (PREDICT_FALSE (!reass0))
- {
- next0 = NAT44_CLASSIFY_NEXT_DROP;
- b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_REASS];
- nat_log_notice ("maximum reassemblies exceeded");
- goto enqueue0;
- }
- if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NONE)
- /* first fragment still hasn't arrived */
- {
- if (nat_ip4_reass_add_fragment (reass0, bi0,
- &fragments_to_drop))
- {
- b0->error = node->errors[NAT44_CLASSIFY_ERROR_MAX_FRAG];
- nat_log_notice ("maximum fragments per reassembly exceeded");
- next0 = NAT44_CLASSIFY_NEXT_DROP;
- goto enqueue0;
- }
- cached0 = 1;
- goto enqueue0;
- }
- else if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NEXT_OUT2IN)
- next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
- else if (reass0->classify_next == NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT)
- next0 = NAT44_CLASSIFY_NEXT_IN2OUT;
- }
- }
-
- enqueue0:
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- nat44_classify_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->cached = cached0;
- if (!cached0)
- t->next_in2out = next0 == NAT44_CLASSIFY_NEXT_IN2OUT ? 1 : 0;
- }
-
- if (cached0)
- {
- n_left_to_next++;
- to_next--;
- }
- else
- /* verify speculative enqueue, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, next0);
-
- if (n_left_from == 0 && vec_len (fragments_to_loopback))
- {
- from = vlib_frame_vector_args (frame);
- u32 len = vec_len (fragments_to_loopback);
- if (len <= VLIB_FRAME_SIZE)
- {
- clib_memcpy (from, fragments_to_loopback, sizeof (u32) * len);
- n_left_from = len;
- vec_reset_length (fragments_to_loopback);
- }
- else
- {
- clib_memcpy (from,
- fragments_to_loopback + (len - VLIB_FRAME_SIZE),
- sizeof (u32) * VLIB_FRAME_SIZE);
- n_left_from = VLIB_FRAME_SIZE;
- _vec_len (fragments_to_loopback) = len - VLIB_FRAME_SIZE;
- }
- }
- }
-
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
-
- nat_send_all_to_node (vm, fragments_to_drop, node, 0, NAT44_CLASSIFY_NEXT_DROP);
-
- vec_free (fragments_to_drop);
-
- return frame->n_vectors;
-}
-
-static uword
-nat44_classify_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return nat44_classify_node_fn_inline (vm, node, frame, 0);
-};
-
-VLIB_REGISTER_NODE (nat44_classify_node) = {
- .function = nat44_classify_node_fn,
- .name = "nat44-classify",
- .vector_size = sizeof (u32),
- .format_trace = format_nat44_classify_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN(nat44_classify_error_strings),
- .error_strings = nat44_classify_error_strings,
- .n_next_nodes = NAT44_CLASSIFY_N_NEXT,
- .next_nodes = {
- [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-in2out",
- [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-out2in",
- [NAT44_CLASSIFY_NEXT_DROP] = "error-drop",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (nat44_classify_node,
- nat44_classify_node_fn);
-static uword
-nat44_ed_classify_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return nat44_classify_node_fn_inline (vm, node, frame, 1);
-};
-
-VLIB_REGISTER_NODE (nat44_ed_classify_node) = {
- .function = nat44_ed_classify_node_fn,
- .name = "nat44-ed-classify",
- .vector_size = sizeof (u32),
- .format_trace = format_nat44_classify_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_next_nodes = NAT44_CLASSIFY_N_NEXT,
- .next_nodes = {
- [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-ed-in2out",
- [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-ed-out2in",
- [NAT44_CLASSIFY_NEXT_DROP] = "error-drop",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (nat44_ed_classify_node,
- nat44_ed_classify_node_fn);
-
-static uword
-nat44_det_classify_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return nat44_classify_node_fn_inline (vm, node, frame, 0);
-};
-
-VLIB_REGISTER_NODE (nat44_det_classify_node) = {
- .function = nat44_det_classify_node_fn,
- .name = "nat44-det-classify",
- .vector_size = sizeof (u32),
- .format_trace = format_nat44_classify_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_next_nodes = NAT44_CLASSIFY_N_NEXT,
- .next_nodes = {
- [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-det-in2out",
- [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-det-out2in",
- [NAT44_CLASSIFY_NEXT_DROP] = "error-drop",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (nat44_det_classify_node,
- nat44_det_classify_node_fn);
-
-static uword
-nat44_handoff_classify_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- return nat44_classify_node_fn_inline (vm, node, frame, 0);
-};
-
-VLIB_REGISTER_NODE (nat44_handoff_classify_node) = {
- .function = nat44_handoff_classify_node_fn,
- .name = "nat44-handoff-classify",
- .vector_size = sizeof (u32),
- .format_trace = format_nat44_classify_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_next_nodes = NAT44_CLASSIFY_N_NEXT,
- .next_nodes = {
- [NAT44_CLASSIFY_NEXT_IN2OUT] = "nat44-in2out-worker-handoff",
- [NAT44_CLASSIFY_NEXT_OUT2IN] = "nat44-out2in-worker-handoff",
- [NAT44_CLASSIFY_NEXT_DROP] = "error-drop",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (nat44_handoff_classify_node,
- nat44_handoff_classify_node_fn);
-
-/**
- * @brief Add/del NAT address to FIB.
- *
- * Add the external NAT address to the FIB as receive entries. This ensures
- * that VPP will reply to ARP for this address and we don't need to enable
- * proxy ARP on the outside interface.
- *
- * @param addr IPv4 address.
- * @param plen address prefix length
- * @param sw_if_index Interface.
- * @param is_add If 0 delete, otherwise add.
- */
void
snat_add_del_addr_to_fib (ip4_address_t * addr, u8 p_len, u32 sw_if_index,
- int is_add)
+ int is_add)
{
fib_prefix_t prefix = {
.fp_len = p_len,
.fp_proto = FIB_PROTOCOL_IP4,
.fp_addr = {
- .ip4.as_u32 = addr->as_u32,
- },
+ .ip4.as_u32 = addr->as_u32,
+ },
};
- u32 fib_index = ip4_fib_table_get_index_for_sw_if_index(sw_if_index);
+ u32 fib_index = ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
if (is_add)
- fib_table_entry_update_one_path(fib_index,
- &prefix,
- FIB_SOURCE_PLUGIN_LOW,
- (FIB_ENTRY_FLAG_CONNECTED |
- FIB_ENTRY_FLAG_LOCAL |
- FIB_ENTRY_FLAG_EXCLUSIVE),
- DPO_PROTO_IP4,
- NULL,
- sw_if_index,
- ~0,
- 1,
- NULL,
- FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_entry_update_one_path (fib_index,
+ &prefix,
+ FIB_SOURCE_PLUGIN_LOW,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL |
+ FIB_ENTRY_FLAG_EXCLUSIVE),
+ DPO_PROTO_IP4,
+ NULL,
+ sw_if_index,
+ ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE);
else
- fib_table_entry_delete(fib_index,
- &prefix,
- FIB_SOURCE_PLUGIN_LOW);
+ fib_table_entry_delete (fib_index, &prefix, FIB_SOURCE_PLUGIN_LOW);
}
-int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id,
- u8 twice_nat)
+int
+snat_add_address (snat_main_t * sm, ip4_address_t * addr, u32 vrf_id,
+ u8 twice_nat)
{
- snat_address_t * ap;
+ snat_address_t *ap;
snat_interface_t *i;
vlib_thread_main_t *tm = vlib_get_thread_main ();
@@ -936,11 +462,13 @@ int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id,
return VNET_API_ERROR_FEATURE_DISABLED;
/* Check if address already exists */
+ /* *INDENT-OFF* */
vec_foreach (ap, twice_nat ? sm->twice_nat_addresses : sm->addresses)
{
if (ap->addr.as_u32 == addr->as_u32)
return VNET_API_ERROR_VALUE_EXIST;
}
+ /* *INDENT-ON* */
if (twice_nat)
vec_add2 (sm->twice_nat_addresses, ap, 1);
@@ -951,7 +479,7 @@ int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id,
if (vrf_id != ~0)
ap->fib_index =
fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, vrf_id,
- FIB_SOURCE_PLUGIN_LOW);
+ FIB_SOURCE_PLUGIN_LOW);
else
ap->fib_index = ~0;
#define _(N, i, n, s) \
@@ -961,11 +489,11 @@ int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id,
vec_validate_init_empty (ap->busy_##n##_ports_per_thread, tm->n_vlib_mains - 1, 0);
foreach_snat_protocol
#undef _
-
- if (twice_nat)
+ if (twice_nat)
return 0;
/* Add external address to FIB */
+ /* *INDENT-OFF* */
pool_foreach (i, sm->interfaces,
({
if (nat_interface_is_inside(i) || sm->out2in_dpo)
@@ -982,42 +510,44 @@ int snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id,
snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1);
break;
}));
+ /* *INDENT-ON* */
return 0;
}
-static int is_snat_address_used_in_static_mapping (snat_main_t *sm,
- ip4_address_t addr)
+static int
+is_snat_address_used_in_static_mapping (snat_main_t * sm, ip4_address_t addr)
{
snat_static_mapping_t *m;
+ /* *INDENT-OFF* */
pool_foreach (m, sm->static_mappings,
({
if (m->external_addr.as_u32 == addr.as_u32)
return 1;
}));
+ /* *INDENT-ON* */
return 0;
}
-void increment_v4_address (ip4_address_t * a)
+void
+increment_v4_address (ip4_address_t * a)
{
u32 v;
- v = clib_net_to_host_u32(a->as_u32) + 1;
- a->as_u32 = clib_host_to_net_u32(v);
+ v = clib_net_to_host_u32 (a->as_u32) + 1;
+ a->as_u32 = clib_host_to_net_u32 (v);
}
static void
snat_add_static_mapping_when_resolved (snat_main_t * sm,
- ip4_address_t l_addr,
- u16 l_port,
- u32 sw_if_index,
- u16 e_port,
- u32 vrf_id,
- snat_protocol_t proto,
- int addr_only,
- int is_add,
- u8 * tag)
+ ip4_address_t l_addr,
+ u16 l_port,
+ u32 sw_if_index,
+ u16 e_port,
+ u32 vrf_id,
+ snat_protocol_t proto,
+ int addr_only, int is_add, u8 * tag)
{
snat_static_map_resolve_t *rp;
@@ -1032,16 +562,19 @@ snat_add_static_mapping_when_resolved (snat_main_t * sm,
rp->is_add = is_add;
rp->tag = vec_dup (tag);
}
-
-static u32 get_thread_idx_by_port(u16 e_port)
+
+static u32
+get_thread_idx_by_port (u16 e_port)
{
- snat_main_t * sm = &snat_main;
- u32 thread_idx = sm->num_workers;
- if (sm->num_workers > 1)
+ snat_main_t *sm = &snat_main;
+ u32 thread_idx = sm->num_workers;
+ if (sm->num_workers > 1)
{
- thread_idx = sm->first_worker_index + sm->workers[(e_port - 1024) / sm->port_per_thread];
- }
- return thread_idx;
+ thread_idx =
+ sm->first_worker_index +
+ sm->workers[(e_port - 1024) / sm->port_per_thread];
+ }
+ return thread_idx;
}
/**
@@ -1067,103 +600,104 @@ static u32 get_thread_idx_by_port(u16 e_port)
*
* @returns
*/
-int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
- u16 l_port, u16 e_port, u32 vrf_id, int addr_only,
- u32 sw_if_index, snat_protocol_t proto, int is_add,
- twice_nat_type_t twice_nat, u8 out2in_only,
- u8 * tag)
+int
+snat_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
+ u16 l_port, u16 e_port, u32 vrf_id, int addr_only,
+ u32 sw_if_index, snat_protocol_t proto, int is_add,
+ twice_nat_type_t twice_nat, u8 out2in_only, u8 * tag)
{
- snat_main_t * sm = &snat_main;
+ snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
snat_session_key_t m_key;
clib_bihash_kv_8_8_t kv, value;
snat_address_t *a = 0;
u32 fib_index = ~0;
- uword * p;
+ uword *p;
snat_interface_t *interface;
int i;
snat_main_per_thread_data_t *tsm;
snat_user_key_t u_key;
snat_user_t *u;
- dlist_elt_t * head, * elt;
+ dlist_elt_t *head, *elt;
u32 elt_index, head_index;
u32 ses_index;
u64 user_index;
- snat_session_t * s;
+ snat_session_t *s;
snat_static_map_resolve_t *rp, *rp_match = 0;
if (!sm->endpoint_dependent)
{
if (twice_nat || out2in_only)
- return VNET_API_ERROR_FEATURE_DISABLED;
+ return VNET_API_ERROR_FEATURE_DISABLED;
}
/* If the external address is a specific interface address */
if (sw_if_index != ~0)
{
- ip4_address_t * first_int_addr;
+ ip4_address_t *first_int_addr;
for (i = 0; i < vec_len (sm->to_resolve); i++)
- {
- rp = sm->to_resolve + i;
- if (rp->sw_if_index != sw_if_index ||
- rp->l_addr.as_u32 != l_addr.as_u32 ||
- rp->vrf_id != vrf_id || rp->addr_only != addr_only)
- continue;
+ {
+ rp = sm->to_resolve + i;
+ if (rp->sw_if_index != sw_if_index ||
+ rp->l_addr.as_u32 != l_addr.as_u32 ||
+ rp->vrf_id != vrf_id || rp->addr_only != addr_only)
+ continue;
- if (!addr_only)
- {
- if (rp->l_port != l_port || rp->e_port != e_port || rp->proto != proto)
- continue;
- }
+ if (!addr_only)
+ {
+ if (rp->l_port != l_port || rp->e_port != e_port
+ || rp->proto != proto)
+ continue;
+ }
- rp_match = rp;
- break;
- }
+ rp_match = rp;
+ break;
+ }
/* Might be already set... */
first_int_addr = ip4_interface_first_address
- (sm->ip4_main, sw_if_index, 0 /* just want the address*/);
+ (sm->ip4_main, sw_if_index, 0 /* just want the address */ );
if (is_add)
- {
- if (rp_match)
- return VNET_API_ERROR_VALUE_EXIST;
+ {
+ if (rp_match)
+ return VNET_API_ERROR_VALUE_EXIST;
- snat_add_static_mapping_when_resolved
- (sm, l_addr, l_port, sw_if_index, e_port, vrf_id, proto,
- addr_only, is_add, tag);
+ snat_add_static_mapping_when_resolved
+ (sm, l_addr, l_port, sw_if_index, e_port, vrf_id, proto,
+ addr_only, is_add, tag);
- /* DHCP resolution required? */
- if (first_int_addr == 0)
- {
- return 0;
- }
- else
- {
- e_addr.as_u32 = first_int_addr->as_u32;
- /* Identity mapping? */
- if (l_addr.as_u32 == 0)
- l_addr.as_u32 = e_addr.as_u32;
- }
- }
+ /* DHCP resolution required? */
+ if (first_int_addr == 0)
+ {
+ return 0;
+ }
+ else
+ {
+ e_addr.as_u32 = first_int_addr->as_u32;
+ /* Identity mapping? */
+ if (l_addr.as_u32 == 0)
+ l_addr.as_u32 = e_addr.as_u32;
+ }
+ }
else
- {
- if (!rp_match)
- return VNET_API_ERROR_NO_SUCH_ENTRY;
+ {
+ if (!rp_match)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
- vec_del1 (sm->to_resolve, i);
+ vec_del1 (sm->to_resolve, i);
- if (first_int_addr)
- {
- e_addr.as_u32 = first_int_addr->as_u32;
- /* Identity mapping? */
- if (l_addr.as_u32 == 0)
- l_addr.as_u32 = e_addr.as_u32;
- }
- else
- return 0;
- }
+ if (first_int_addr)
+ {
+ e_addr.as_u32 = first_int_addr->as_u32;
+ /* Identity mapping? */
+ if (l_addr.as_u32 == 0)
+ l_addr.as_u32 = e_addr.as_u32;
+ }
+ else
+ return 0;
+ }
}
m_key.addr = e_addr;
@@ -1179,49 +713,50 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
if (is_add)
{
if (m)
- return VNET_API_ERROR_VALUE_EXIST;
+ return VNET_API_ERROR_VALUE_EXIST;
if (twice_nat && addr_only)
- return VNET_API_ERROR_UNSUPPORTED;
+ return VNET_API_ERROR_UNSUPPORTED;
/* Convert VRF id to FIB index */
if (vrf_id != ~0)
- {
- p = hash_get (sm->ip4_main->fib_index_by_table_id, vrf_id);
- if (!p)
- return VNET_API_ERROR_NO_SUCH_FIB;
- fib_index = p[0];
- }
+ {
+ p = hash_get (sm->ip4_main->fib_index_by_table_id, vrf_id);
+ if (!p)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+ fib_index = p[0];
+ }
/* If not specified use inside VRF id from SNAT plugin startup config */
else
- {
- fib_index = sm->inside_fib_index;
- vrf_id = sm->inside_vrf_id;
- }
+ {
+ fib_index = sm->inside_fib_index;
+ vrf_id = sm->inside_vrf_id;
+ }
if (!out2in_only)
- {
- m_key.addr = l_addr;
- m_key.port = addr_only ? 0 : l_port;
- m_key.protocol = addr_only ? 0 : proto;
- m_key.fib_index = fib_index;
- kv.key = m_key.as_u64;
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_local, &kv, &value))
- return VNET_API_ERROR_VALUE_EXIST;
- }
+ {
+ m_key.addr = l_addr;
+ m_key.port = addr_only ? 0 : l_port;
+ m_key.protocol = addr_only ? 0 : proto;
+ m_key.fib_index = fib_index;
+ kv.key = m_key.as_u64;
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_local, &kv, &value))
+ return VNET_API_ERROR_VALUE_EXIST;
+ }
/* Find external address in allocated addresses and reserve port for
address and port pair mapping when dynamic translations enabled */
if (!(addr_only || sm->static_mapping_only || out2in_only))
- {
- for (i = 0; i < vec_len (sm->addresses); i++)
- {
- if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
- {
- a = sm->addresses + i;
- /* External port must be unused */
- switch (proto)
- {
+ {
+ for (i = 0; i < vec_len (sm->addresses); i++)
+ {
+ if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
+ {
+ a = sm->addresses + i;
+ /* External port must be unused */
+ switch (proto)
+ {
#define _(N, j, n, s) \
case SNAT_PROTOCOL_##N: \
if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, e_port)) \
@@ -1233,38 +768,38 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
a->busy_##n##_ports_per_thread[get_thread_idx_by_port(e_port)]++; \
} \
break;
- foreach_snat_protocol
+ foreach_snat_protocol
#undef _
- default:
- nat_log_info ("unknown protocol");
- return VNET_API_ERROR_INVALID_VALUE_2;
- }
- break;
- }
- }
- /* External address must be allocated */
- if (!a && (l_addr.as_u32 != e_addr.as_u32))
- {
- if (sw_if_index != ~0)
- {
- for (i = 0; i < vec_len (sm->to_resolve); i++)
- {
- rp = sm->to_resolve + i;
- if (rp->addr_only)
- continue;
- if (rp->sw_if_index != sw_if_index &&
- rp->l_addr.as_u32 != l_addr.as_u32 &&
- rp->vrf_id != vrf_id && rp->l_port != l_port &&
- rp->e_port != e_port && rp->proto != proto)
- continue;
-
- vec_del1 (sm->to_resolve, i);
- break;
- }
- }
- return VNET_API_ERROR_NO_SUCH_ENTRY;
- }
- }
+ default:
+ nat_log_info ("unknown protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
+ }
+ break;
+ }
+ }
+ /* External address must be allocated */
+ if (!a && (l_addr.as_u32 != e_addr.as_u32))
+ {
+ if (sw_if_index != ~0)
+ {
+ for (i = 0; i < vec_len (sm->to_resolve); i++)
+ {
+ rp = sm->to_resolve + i;
+ if (rp->addr_only)
+ continue;
+ if (rp->sw_if_index != sw_if_index &&
+ rp->l_addr.as_u32 != l_addr.as_u32 &&
+ rp->vrf_id != vrf_id && rp->l_port != l_port &&
+ rp->e_port != e_port && rp->proto != proto)
+ continue;
+
+ vec_del1 (sm->to_resolve, i);
+ break;
+ }
+ }
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
+ }
pool_get (sm->static_mappings, m);
memset (m, 0, sizeof (*m));
@@ -1277,22 +812,22 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
m->twice_nat = twice_nat;
m->out2in_only = out2in_only;
if (!addr_only)
- {
- m->local_port = l_port;
- m->external_port = e_port;
- m->proto = proto;
- }
+ {
+ m->local_port = l_port;
+ m->external_port = e_port;
+ m->proto = proto;
+ }
if (sm->num_workers > 1)
- {
- ip4_header_t ip = {
- .src_address = m->local_addr,
- };
- vec_add1 (m->workers, sm->worker_in2out_cb (&ip, m->fib_index));
- tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]);
- }
+ {
+ ip4_header_t ip = {
+ .src_address = m->local_addr,
+ };
+ vec_add1 (m->workers, sm->worker_in2out_cb (&ip, m->fib_index));
+ tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]);
+ }
else
- tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
m_key.addr = m->local_addr;
m_key.port = m->local_port;
@@ -1301,74 +836,77 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
kv.key = m_key.as_u64;
kv.value = m - sm->static_mappings;
if (!out2in_only)
- clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 1);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
m_key.addr = m->external_addr;
m_key.port = m->external_port;
m_key.fib_index = 0;
kv.key = m_key.as_u64;
kv.value = m - sm->static_mappings;
- clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1);
/* Delete dynamic sessions matching local address (+ local port) */
if (!(sm->static_mapping_only))
- {
- u_key.addr = m->local_addr;
- u_key.fib_index = m->fib_index;
- kv.key = u_key.as_u64;
- if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
- {
- user_index = value.value;
- u = pool_elt_at_index (tsm->users, user_index);
- if (u->nsessions)
- {
- head_index = u->sessions_per_user_list_head_index;
- head = pool_elt_at_index (tsm->list_pool, head_index);
- elt_index = head->next;
- elt = pool_elt_at_index (tsm->list_pool, elt_index);
- ses_index = elt->value;
- while (ses_index != ~0)
- {
- s = pool_elt_at_index (tsm->sessions, ses_index);
- elt = pool_elt_at_index (tsm->list_pool, elt->next);
- ses_index = elt->value;
-
- if (snat_is_session_static (s))
- continue;
-
- if (!addr_only && (clib_net_to_host_u16 (s->in2out.port) != m->local_port))
- continue;
-
- nat_free_session_data (sm, s, tsm - sm->per_thread_data);
- nat44_delete_session (sm, s, tsm - sm->per_thread_data);
-
- if (!addr_only && !sm->endpoint_dependent)
- break;
- }
- }
- }
- }
+ {
+ u_key.addr = m->local_addr;
+ u_key.fib_index = m->fib_index;
+ kv.key = u_key.as_u64;
+ if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ {
+ user_index = value.value;
+ u = pool_elt_at_index (tsm->users, user_index);
+ if (u->nsessions)
+ {
+ head_index = u->sessions_per_user_list_head_index;
+ head = pool_elt_at_index (tsm->list_pool, head_index);
+ elt_index = head->next;
+ elt = pool_elt_at_index (tsm->list_pool, elt_index);
+ ses_index = elt->value;
+ while (ses_index != ~0)
+ {
+ s = pool_elt_at_index (tsm->sessions, ses_index);
+ elt = pool_elt_at_index (tsm->list_pool, elt->next);
+ ses_index = elt->value;
+
+ if (snat_is_session_static (s))
+ continue;
+
+ if (!addr_only
+ && (clib_net_to_host_u16 (s->in2out.port) !=
+ m->local_port))
+ continue;
+
+ nat_free_session_data (sm, s,
+ tsm - sm->per_thread_data);
+ nat44_delete_session (sm, s, tsm - sm->per_thread_data);
+
+ if (!addr_only && !sm->endpoint_dependent)
+ break;
+ }
+ }
+ }
+ }
}
else
{
if (!m)
- {
- if (sw_if_index != ~0)
- return 0;
- else
- return VNET_API_ERROR_NO_SUCH_ENTRY;
- }
+ {
+ if (sw_if_index != ~0)
+ return 0;
+ else
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
/* Free external address port */
if (!(addr_only || sm->static_mapping_only || out2in_only))
- {
- for (i = 0; i < vec_len (sm->addresses); i++)
- {
- if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
- {
- a = sm->addresses + i;
- switch (proto)
- {
+ {
+ for (i = 0; i < vec_len (sm->addresses); i++)
+ {
+ if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
+ {
+ a = sm->addresses + i;
+ switch (proto)
+ {
#define _(N, j, n, s) \
case SNAT_PROTOCOL_##N: \
clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \
@@ -1378,21 +916,21 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
a->busy_##n##_ports_per_thread[get_thread_idx_by_port(e_port)]--; \
} \
break;
- foreach_snat_protocol
+ foreach_snat_protocol
#undef _
- default:
- nat_log_info ("unknown protocol");
- return VNET_API_ERROR_INVALID_VALUE_2;
- }
- break;
- }
- }
- }
+ default:
+ nat_log_info ("unknown protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
+ }
+ break;
+ }
+ }
+ }
if (sm->num_workers > 1)
- tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]);
+ tsm = vec_elt_at_index (sm->per_thread_data, m->workers[0]);
else
- tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
+ tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
m_key.addr = m->local_addr;
m_key.port = m->local_port;
@@ -1400,60 +938,62 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
m_key.fib_index = m->fib_index;
kv.key = m_key.as_u64;
if (!out2in_only)
- clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 0);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0);
m_key.addr = m->external_addr;
m_key.port = m->external_port;
m_key.fib_index = 0;
kv.key = m_key.as_u64;
- clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 0);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0);
/* Delete session(s) for static mapping if exist */
if (!(sm->static_mapping_only) ||
- (sm->static_mapping_only && sm->static_mapping_connection_tracking))
- {
- u_key.addr = m->local_addr;
- u_key.fib_index = m->fib_index;
- kv.key = u_key.as_u64;
- if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
- {
- user_index = value.value;
- u = pool_elt_at_index (tsm->users, user_index);
- if (u->nstaticsessions)
- {
- head_index = u->sessions_per_user_list_head_index;
- head = pool_elt_at_index (tsm->list_pool, head_index);
- elt_index = head->next;
- elt = pool_elt_at_index (tsm->list_pool, elt_index);
- ses_index = elt->value;
- while (ses_index != ~0)
- {
- s = pool_elt_at_index (tsm->sessions, ses_index);
- elt = pool_elt_at_index (tsm->list_pool, elt->next);
- ses_index = elt->value;
-
- if (!addr_only)
- {
- if ((s->out2in.addr.as_u32 != e_addr.as_u32) ||
- (clib_net_to_host_u16 (s->out2in.port) != e_port))
- continue;
- }
-
- if (is_lb_session (s))
- continue;
-
- if (!snat_is_session_static (s))
- continue;
-
- nat_free_session_data (sm, s, tsm - sm->per_thread_data);
- nat44_delete_session (sm, s, tsm - sm->per_thread_data);
-
- if (!addr_only && !sm->endpoint_dependent)
- break;
- }
- }
- }
- }
+ (sm->static_mapping_only && sm->static_mapping_connection_tracking))
+ {
+ u_key.addr = m->local_addr;
+ u_key.fib_index = m->fib_index;
+ kv.key = u_key.as_u64;
+ if (!clib_bihash_search_8_8 (&tsm->user_hash, &kv, &value))
+ {
+ user_index = value.value;
+ u = pool_elt_at_index (tsm->users, user_index);
+ if (u->nstaticsessions)
+ {
+ head_index = u->sessions_per_user_list_head_index;
+ head = pool_elt_at_index (tsm->list_pool, head_index);
+ elt_index = head->next;
+ elt = pool_elt_at_index (tsm->list_pool, elt_index);
+ ses_index = elt->value;
+ while (ses_index != ~0)
+ {
+ s = pool_elt_at_index (tsm->sessions, ses_index);
+ elt = pool_elt_at_index (tsm->list_pool, elt->next);
+ ses_index = elt->value;
+
+ if (!addr_only)
+ {
+ if ((s->out2in.addr.as_u32 != e_addr.as_u32) ||
+ (clib_net_to_host_u16 (s->out2in.port) !=
+ e_port))
+ continue;
+ }
+
+ if (is_lb_session (s))
+ continue;
+
+ if (!snat_is_session_static (s))
+ continue;
+
+ nat_free_session_data (sm, s,
+ tsm - sm->per_thread_data);
+ nat44_delete_session (sm, s, tsm - sm->per_thread_data);
+
+ if (!addr_only && !sm->endpoint_dependent)
+ break;
+ }
+ }
+ }
+ }
vec_free (m->tag);
vec_free (m->workers);
@@ -1465,6 +1005,7 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
return 0;
/* Add/delete external address to FIB */
+ /* *INDENT-OFF* */
pool_foreach (interface, sm->interfaces,
({
if (nat_interface_is_inside(interface) || sm->out2in_dpo)
@@ -1481,17 +1022,19 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add);
break;
}));
+ /* *INDENT-ON* */
return 0;
}
-int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- snat_protocol_t proto,
- nat44_lb_addr_port_t *locals, u8 is_add,
- twice_nat_type_t twice_nat, u8 out2in_only,
- u8 *tag, u32 affinity)
+int
+nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
+ snat_protocol_t proto,
+ nat44_lb_addr_port_t * locals, u8 is_add,
+ twice_nat_type_t twice_nat, u8 out2in_only,
+ u8 * tag, u32 affinity)
{
- snat_main_t * sm = &snat_main;
+ snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
snat_session_key_t m_key;
clib_bihash_kv_8_8_t kv, value;
@@ -1502,8 +1045,8 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
snat_main_per_thread_data_t *tsm;
snat_user_key_t u_key;
snat_user_t *u;
- snat_session_t * s;
- dlist_elt_t * head, * elt;
+ snat_session_t *s;
+ dlist_elt_t *head, *elt;
uword *bitmap = 0;
if (!sm->endpoint_dependent)
@@ -1522,23 +1065,23 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
if (is_add)
{
if (m)
- return VNET_API_ERROR_VALUE_EXIST;
+ return VNET_API_ERROR_VALUE_EXIST;
if (vec_len (locals) < 2)
- return VNET_API_ERROR_INVALID_VALUE;
+ return VNET_API_ERROR_INVALID_VALUE;
/* Find external address in allocated addresses and reserve port for
address and port pair mapping when dynamic translations enabled */
if (!(sm->static_mapping_only || out2in_only))
- {
- for (i = 0; i < vec_len (sm->addresses); i++)
- {
- if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
- {
- a = sm->addresses + i;
- /* External port must be unused */
- switch (proto)
- {
+ {
+ for (i = 0; i < vec_len (sm->addresses); i++)
+ {
+ if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
+ {
+ a = sm->addresses + i;
+ /* External port must be unused */
+ switch (proto)
+ {
#define _(N, j, n, s) \
case SNAT_PROTOCOL_##N: \
if (clib_bitmap_get_no_check (a->busy_##n##_port_bitmap, e_port)) \
@@ -1550,19 +1093,19 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
a->busy_##n##_ports_per_thread[get_thread_idx_by_port(e_port)]++; \
} \
break;
- foreach_snat_protocol
+ foreach_snat_protocol
#undef _
- default:
- nat_log_info ("unknown protocol");
- return VNET_API_ERROR_INVALID_VALUE_2;
- }
- break;
- }
- }
- /* External address must be allocated */
- if (!a)
- return VNET_API_ERROR_NO_SUCH_ENTRY;
- }
+ default:
+ nat_log_info ("unknown protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
+ }
+ break;
+ }
+ }
+ /* External address must be allocated */
+ if (!a)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+ }
pool_get (sm->static_mappings, m);
memset (m, 0, sizeof (*m));
@@ -1576,10 +1119,10 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
m->affinity = affinity;
if (affinity)
- m->affinity_per_service_list_head_index =
- nat_affinity_get_per_service_list_head_index();
+ m->affinity_per_service_list_head_index =
+ nat_affinity_get_per_service_list_head_index ();
else
- m->affinity_per_service_list_head_index = ~0;
+ m->affinity_per_service_list_head_index = ~0;
m_key.addr = m->external_addr;
m_key.port = m->external_port;
@@ -1587,63 +1130,68 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
m_key.fib_index = 0;
kv.key = m_key.as_u64;
kv.value = m - sm->static_mappings;
- if (clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 1))
- {
- nat_log_err ("static_mapping_by_external key add failed");
- return VNET_API_ERROR_UNSPECIFIED;
- }
+ if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1))
+ {
+ nat_log_err ("static_mapping_by_external key add failed");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
m_key.fib_index = m->fib_index;
for (i = 0; i < vec_len (locals); i++)
- {
- locals[i].fib_index = fib_table_find_or_create_and_lock (
- FIB_PROTOCOL_IP4, locals[i].vrf_id, FIB_SOURCE_PLUGIN_LOW);
- m_key.addr = locals[i].addr;
- m_key.fib_index = locals[i].fib_index;
- if (!out2in_only)
- {
- m_key.port = locals[i].port;
- kv.key = m_key.as_u64;
- kv.value = m - sm->static_mappings;
- clib_bihash_add_del_8_8(&sm->static_mapping_by_local, &kv, 1);
- }
- locals[i].prefix = (i == 0) ? locals[i].probability :\
- (locals[i - 1].prefix + locals[i].probability);
- vec_add1 (m->locals, locals[i]);
- if (sm->num_workers > 1)
- {
- ip4_header_t ip = {
- .src_address = locals[i].addr,
- };
- bitmap = clib_bitmap_set (
- bitmap, sm->worker_in2out_cb (&ip, m->fib_index), 1);
- }
- }
+ {
+ locals[i].fib_index =
+ fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
+ locals[i].vrf_id,
+ FIB_SOURCE_PLUGIN_LOW);
+ m_key.addr = locals[i].addr;
+ m_key.fib_index = locals[i].fib_index;
+ if (!out2in_only)
+ {
+ m_key.port = locals[i].port;
+ kv.key = m_key.as_u64;
+ kv.value = m - sm->static_mappings;
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
+ }
+ locals[i].prefix = (i == 0) ? locals[i].probability :
+ (locals[i - 1].prefix + locals[i].probability);
+ vec_add1 (m->locals, locals[i]);
+ if (sm->num_workers > 1)
+ {
+ ip4_header_t ip = {
+ .src_address = locals[i].addr,
+ };
+ bitmap =
+ clib_bitmap_set (bitmap,
+ sm->worker_in2out_cb (&ip, m->fib_index), 1);
+ }
+ }
/* Assign workers */
if (sm->num_workers > 1)
- {
+ {
+ /* *INDENT-OFF* */
clib_bitmap_foreach (i, bitmap,
({
vec_add1(m->workers, i);
}));
- }
+ /* *INDENT-ON* */
+ }
}
else
{
if (!m)
- return VNET_API_ERROR_NO_SUCH_ENTRY;
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
/* Free external address port */
if (!(sm->static_mapping_only || out2in_only))
- {
- for (i = 0; i < vec_len (sm->addresses); i++)
- {
- if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
- {
- a = sm->addresses + i;
- switch (proto)
- {
+ {
+ for (i = 0; i < vec_len (sm->addresses); i++)
+ {
+ if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
+ {
+ a = sm->addresses + i;
+ switch (proto)
+ {
#define _(N, j, n, s) \
case SNAT_PROTOCOL_##N: \
clib_bitmap_set_no_check (a->busy_##n##_port_bitmap, e_port, 0); \
@@ -1653,28 +1201,29 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
a->busy_##n##_ports_per_thread[get_thread_idx_by_port(e_port)]--; \
} \
break;
- foreach_snat_protocol
+ foreach_snat_protocol
#undef _
- default:
- nat_log_info ("unknown protocol");
- return VNET_API_ERROR_INVALID_VALUE_2;
- }
- break;
- }
- }
- }
+ default:
+ nat_log_info ("unknown protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
+ }
+ break;
+ }
+ }
+ }
m_key.addr = m->external_addr;
m_key.port = m->external_port;
m_key.protocol = m->proto;
m_key.fib_index = 0;
kv.key = m_key.as_u64;
- if (clib_bihash_add_del_8_8(&sm->static_mapping_by_external, &kv, 0))
- {
- nat_log_err ("static_mapping_by_external key del failed");
- return VNET_API_ERROR_UNSPECIFIED;
- }
+ if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0))
+ {
+ nat_log_err ("static_mapping_by_external key del failed");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
+ /* *INDENT-OFF* */
vec_foreach (local, m->locals)
{
fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4,
@@ -1736,11 +1285,12 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
}
}
}
+ /* *INDENT-ON* */
if (m->affinity)
- nat_affinity_flush_service (m->affinity_per_service_list_head_index);
- vec_free(m->locals);
- vec_free(m->tag);
- vec_free(m->workers);
+ nat_affinity_flush_service (m->affinity_per_service_list_head_index);
+ vec_free (m->locals);
+ vec_free (m->tag);
+ vec_free (m->workers);
pool_put (sm->static_mappings, m);
}
@@ -1749,8 +1299,8 @@ int nat44_add_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
}
int
-snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm,
- u8 twice_nat)
+snat_del_address (snat_main_t * sm, ip4_address_t addr, u8 delete_sm,
+ u8 twice_nat)
{
snat_address_t *a = 0;
snat_session_t *ses;
@@ -1759,22 +1309,24 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm,
snat_static_mapping_t *m;
snat_interface_t *interface;
int i;
- snat_address_t *addresses = twice_nat ? sm->twice_nat_addresses : sm->addresses;
+ snat_address_t *addresses =
+ twice_nat ? sm->twice_nat_addresses : sm->addresses;
/* Find SNAT address */
- for (i=0; i < vec_len (addresses); i++)
+ for (i = 0; i < vec_len (addresses); i++)
{
if (addresses[i].addr.as_u32 == addr.as_u32)
- {
- a = addresses + i;
- break;
- }
+ {
+ a = addresses + i;
+ break;
+ }
}
if (!a)
return VNET_API_ERROR_NO_SUCH_ENTRY;
if (delete_sm)
{
+ /* *INDENT-OFF* */
pool_foreach (m, sm->static_mappings,
({
if (m->external_addr.as_u32 == addr.as_u32)
@@ -1784,30 +1336,30 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm,
m->proto, 0, m->twice_nat,
m->out2in_only, m->tag);
}));
+ /* *INDENT-ON* */
}
else
{
/* Check if address is used in some static mapping */
- if (is_snat_address_used_in_static_mapping(sm, addr))
- {
- nat_log_notice ("address used in static mapping");
- return VNET_API_ERROR_UNSPECIFIED;
- }
+ if (is_snat_address_used_in_static_mapping (sm, addr))
+ {
+ nat_log_notice ("address used in static mapping");
+ return VNET_API_ERROR_UNSPECIFIED;
+ }
}
if (a->fib_index != ~0)
- fib_table_unlock(a->fib_index, FIB_PROTOCOL_IP4,
- FIB_SOURCE_PLUGIN_LOW);
+ fib_table_unlock (a->fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_PLUGIN_LOW);
/* Delete sessions using address */
if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports)
{
+ /* *INDENT-OFF* */
vec_foreach (tsm, sm->per_thread_data)
{
pool_foreach (ses, tsm->sessions, ({
if (ses->out2in.addr.as_u32 == addr.as_u32)
{
- ses->outside_address_index = ~0;
nat_free_session_data (sm, ses, tsm - sm->per_thread_data);
vec_add1 (ses_to_be_removed, ses - tsm->sessions);
}
@@ -1820,7 +1372,8 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm,
}
vec_free (ses_to_be_removed);
- }
+ }
+ /* *INDENT-ON* */
}
#define _(N, i, n, s) \
@@ -1828,8 +1381,7 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm,
vec_free (a->busy_##n##_ports_per_thread);
foreach_snat_protocol
#undef _
-
- if (twice_nat)
+ if (twice_nat)
{
vec_del1 (sm->twice_nat_addresses, i);
return 0;
@@ -1838,6 +1390,7 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm,
vec_del1 (sm->addresses, i);
/* Delete external address from FIB */
+ /* *INDENT-OFF* */
pool_foreach (interface, sm->interfaces,
({
if (nat_interface_is_inside(interface) || sm->out2in_dpo)
@@ -1854,55 +1407,62 @@ snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm,
snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0);
break;
}));
+ /* *INDENT-ON* */
return 0;
}
-int snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
+int
+snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
{
snat_main_t *sm = &snat_main;
snat_interface_t *i;
- const char * feature_name, *del_feature_name;
- snat_address_t * ap;
- snat_static_mapping_t * m;
- snat_det_map_t * dm;
+ const char *feature_name, *del_feature_name;
+ snat_address_t *ap;
+ snat_static_mapping_t *m;
+ snat_det_map_t *dm;
nat_outside_fib_t *outside_fib;
u32 fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
- sw_if_index);
+ sw_if_index);
if (sm->out2in_dpo && !is_inside)
return VNET_API_ERROR_UNSUPPORTED;
+ /* *INDENT-OFF* */
pool_foreach (i, sm->output_feature_interfaces,
({
if (i->sw_if_index == sw_if_index)
return VNET_API_ERROR_VALUE_EXIST;
}));
+ /* *INDENT-ON* */
if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
- feature_name = is_inside ? "nat44-in2out-fast" : "nat44-out2in-fast";
+ feature_name = is_inside ? "nat44-in2out-fast" : "nat44-out2in-fast";
else
{
if (sm->num_workers > 1 && !sm->deterministic)
- feature_name = is_inside ? "nat44-in2out-worker-handoff" : "nat44-out2in-worker-handoff";
+ feature_name =
+ is_inside ? "nat44-in2out-worker-handoff" :
+ "nat44-out2in-worker-handoff";
else if (sm->deterministic)
- feature_name = is_inside ? "nat44-det-in2out" : "nat44-det-out2in";
+ feature_name = is_inside ? "nat44-det-in2out" : "nat44-det-out2in";
else if (sm->endpoint_dependent)
- feature_name = is_inside ? "nat44-ed-in2out" : "nat44-ed-out2in";
+ feature_name = is_inside ? "nat44-ed-in2out" : "nat44-ed-out2in";
else
- feature_name = is_inside ? "nat44-in2out" : "nat44-out2in";
+ feature_name = is_inside ? "nat44-in2out" : "nat44-out2in";
}
if (sm->fq_in2out_index == ~0 && !sm->deterministic && sm->num_workers > 1)
sm->fq_in2out_index = vlib_frame_queue_main_init (sm->in2out_node_index,
- NAT_FQ_NELTS);
+ NAT_FQ_NELTS);
if (sm->fq_out2in_index == ~0 && !sm->deterministic && sm->num_workers > 1)
sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index,
- NAT_FQ_NELTS);
+ NAT_FQ_NELTS);
if (!is_inside)
{
+ /* *INDENT-OFF* */
vec_foreach (outside_fib, sm->outside_fibs)
{
if (outside_fib->fib_index == fib_index)
@@ -1918,14 +1478,16 @@ int snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
goto feature_set;
}
}
+ /* *INDENT-ON* */
if (!is_del)
- {
- vec_add2 (sm->outside_fibs, outside_fib, 1);
- outside_fib->refcount = 1;
- outside_fib->fib_index = fib_index;
- }
+ {
+ vec_add2 (sm->outside_fibs, outside_fib, 1);
+ outside_fib->refcount = 1;
+ outside_fib->fib_index = fib_index;
+ }
}
feature_set:
+ /* *INDENT-OFF* */
pool_foreach (i, sm->interfaces,
({
if (i->sw_if_index == sw_if_index)
@@ -2046,6 +1608,7 @@ feature_set:
goto fib;
}
}));
+ /* *INDENT-ON* */
if (is_del)
return VNET_API_ERROR_NO_SUCH_ENTRY;
@@ -2053,16 +1616,17 @@ feature_set:
pool_get (sm->interfaces, i);
i->sw_if_index = sw_if_index;
i->flags = 0;
- vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1, 0, 0);
+ vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, 1, 0,
+ 0);
if (is_inside && !sm->out2in_dpo)
{
if (sm->endpoint_dependent)
- vnet_feature_enable_disable ("ip4-local", "nat44-ed-hairpinning",
- sw_if_index, 1, 0, 0);
+ vnet_feature_enable_disable ("ip4-local", "nat44-ed-hairpinning",
+ sw_if_index, 1, 0, 0);
else if (!sm->deterministic)
- vnet_feature_enable_disable ("ip4-local", "nat44-hairpinning",
- sw_if_index, 1, 0, 0);
+ vnet_feature_enable_disable ("ip4-local", "nat44-hairpinning",
+ sw_if_index, 1, 0, 0);
}
set_flags:
@@ -2076,6 +1640,7 @@ set_flags:
/* Add/delete external addresses to FIB */
fib:
+ /* *INDENT-OFF* */
vec_foreach (ap, sm->addresses)
snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del);
@@ -2091,73 +1656,76 @@ fib:
({
snat_add_del_addr_to_fib(&dm->out_addr, dm->out_plen, sw_if_index, !is_del);
}));
+ /* *INDENT-ON* */
return 0;
}
-int snat_interface_add_del_output_feature (u32 sw_if_index,
- u8 is_inside,
- int is_del)
+int
+snat_interface_add_del_output_feature (u32 sw_if_index,
+ u8 is_inside, int is_del)
{
snat_main_t *sm = &snat_main;
snat_interface_t *i;
- snat_address_t * ap;
- snat_static_mapping_t * m;
+ snat_address_t *ap;
+ snat_static_mapping_t *m;
if (sm->deterministic ||
(sm->static_mapping_only && !(sm->static_mapping_connection_tracking)))
return VNET_API_ERROR_UNSUPPORTED;
+ /* *INDENT-OFF* */
pool_foreach (i, sm->interfaces,
({
if (i->sw_if_index == sw_if_index)
return VNET_API_ERROR_VALUE_EXIST;
}));
+ /* *INDENT-ON* */
if (is_inside)
{
if (sm->endpoint_dependent)
- {
- vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-hairpin-dst",
- sw_if_index, !is_del, 0, 0);
- vnet_feature_enable_disable ("ip4-output", "nat44-ed-hairpin-src",
- sw_if_index, !is_del, 0, 0);
- }
+ {
+ vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-hairpin-dst",
+ sw_if_index, !is_del, 0, 0);
+ vnet_feature_enable_disable ("ip4-output", "nat44-ed-hairpin-src",
+ sw_if_index, !is_del, 0, 0);
+ }
else
- {
- vnet_feature_enable_disable ("ip4-unicast", "nat44-hairpin-dst",
- sw_if_index, !is_del, 0, 0);
- vnet_feature_enable_disable ("ip4-output", "nat44-hairpin-src",
- sw_if_index, !is_del, 0, 0);
- }
+ {
+ vnet_feature_enable_disable ("ip4-unicast", "nat44-hairpin-dst",
+ sw_if_index, !is_del, 0, 0);
+ vnet_feature_enable_disable ("ip4-output", "nat44-hairpin-src",
+ sw_if_index, !is_del, 0, 0);
+ }
goto fq;
}
if (sm->num_workers > 1)
{
vnet_feature_enable_disable ("ip4-unicast",
- "nat44-out2in-worker-handoff",
- sw_if_index, !is_del, 0, 0);
+ "nat44-out2in-worker-handoff",
+ sw_if_index, !is_del, 0, 0);
vnet_feature_enable_disable ("ip4-output",
- "nat44-in2out-output-worker-handoff",
- sw_if_index, !is_del, 0, 0);
+ "nat44-in2out-output-worker-handoff",
+ sw_if_index, !is_del, 0, 0);
}
else
{
if (sm->endpoint_dependent)
- {
- vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-out2in",
- sw_if_index, !is_del, 0, 0);
- vnet_feature_enable_disable ("ip4-output", "nat44-ed-in2out-output",
- sw_if_index, !is_del, 0, 0);
- }
+ {
+ vnet_feature_enable_disable ("ip4-unicast", "nat44-ed-out2in",
+ sw_if_index, !is_del, 0, 0);
+ vnet_feature_enable_disable ("ip4-output", "nat44-ed-in2out-output",
+ sw_if_index, !is_del, 0, 0);
+ }
else
- {
- vnet_feature_enable_disable ("ip4-unicast", "nat44-out2in",
- sw_if_index, !is_del, 0, 0);
- vnet_feature_enable_disable ("ip4-output", "nat44-in2out-output",
- sw_if_index, !is_del, 0, 0);
- }
+ {
+ vnet_feature_enable_disable ("ip4-unicast", "nat44-out2in",
+ sw_if_index, !is_del, 0, 0);
+ vnet_feature_enable_disable ("ip4-output", "nat44-in2out-output",
+ sw_if_index, !is_del, 0, 0);
+ }
}
fq:
@@ -2166,8 +1734,10 @@ fq:
vlib_frame_queue_main_init (sm->in2out_output_node_index, 0);
if (sm->fq_out2in_index == ~0 && sm->num_workers > 1)
- sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index, 0);
+ sm->fq_out2in_index =
+ vlib_frame_queue_main_init (sm->out2in_node_index, 0);
+ /* *INDENT-OFF* */
pool_foreach (i, sm->output_feature_interfaces,
({
if (i->sw_if_index == sw_if_index)
@@ -2180,6 +1750,7 @@ fq:
goto fib;
}
}));
+ /* *INDENT-ON* */
if (is_del)
return VNET_API_ERROR_NO_SUCH_ENTRY;
@@ -2197,6 +1768,7 @@ fib:
if (is_inside)
return 0;
+ /* *INDENT-OFF* */
vec_foreach (ap, sm->addresses)
snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del);
@@ -2207,11 +1779,13 @@ fib:
snat_add_del_addr_to_fib(&m->external_addr, 32, sw_if_index, !is_del);
}));
+ /* *INDENT-ON* */
return 0;
}
-int snat_set_workers (uword * bitmap)
+int
+snat_set_workers (uword * bitmap)
{
snat_main_t *sm = &snat_main;
int i, j = 0;
@@ -2223,12 +1797,14 @@ int snat_set_workers (uword * bitmap)
return VNET_API_ERROR_INVALID_WORKER;
vec_free (sm->workers);
+ /* *INDENT-OFF* */
clib_bitmap_foreach (i, bitmap,
({
vec_add1(sm->workers, i);
sm->per_thread_data[sm->first_worker_index + i].snat_thread_index = j;
j++;
}));
+ /* *INDENT-ON* */
sm->port_per_thread = (0xffff - 1024) / _vec_len (sm->workers);
sm->num_snat_thread = _vec_len (sm->workers);
@@ -2239,47 +1815,44 @@ int snat_set_workers (uword * bitmap)
static void
snat_ip4_add_del_interface_address_cb (ip4_main_t * im,
- uword opaque,
- u32 sw_if_index,
- ip4_address_t * address,
- u32 address_length,
- u32 if_address_index,
- u32 is_delete);
+ uword opaque,
+ u32 sw_if_index,
+ ip4_address_t * address,
+ u32 address_length,
+ u32 if_address_index, u32 is_delete);
static void
nat_ip4_add_del_addr_only_sm_cb (ip4_main_t * im,
- uword opaque,
- u32 sw_if_index,
- ip4_address_t * address,
- u32 address_length,
- u32 if_address_index,
- u32 is_delete);
+ uword opaque,
+ u32 sw_if_index,
+ ip4_address_t * address,
+ u32 address_length,
+ u32 if_address_index, u32 is_delete);
static int
nat_alloc_addr_and_port_default (snat_address_t * addresses,
- u32 fib_index,
- u32 thread_index,
- snat_session_key_t * k,
- u32 * address_indexp,
- u16 port_per_thread,
- u32 snat_thread_index);
-
-static clib_error_t * snat_init (vlib_main_t * vm)
+ u32 fib_index,
+ u32 thread_index,
+ snat_session_key_t * k,
+ u16 port_per_thread, u32 snat_thread_index);
+
+static clib_error_t *
+snat_init (vlib_main_t * vm)
{
- snat_main_t * sm = &snat_main;
- clib_error_t * error = 0;
- ip4_main_t * im = &ip4_main;
- ip_lookup_main_t * lm = &im->lookup_main;
+ snat_main_t *sm = &snat_main;
+ clib_error_t *error = 0;
+ ip4_main_t *im = &ip4_main;
+ ip_lookup_main_t *lm = &im->lookup_main;
uword *p;
vlib_thread_registration_t *tr;
vlib_thread_main_t *tm = vlib_get_thread_main ();
uword *bitmap = 0;
u32 i;
ip4_add_del_interface_address_callback_t cb4;
- vlib_node_t * error_drop_node;
+ vlib_node_t *error_drop_node;
sm->vlib_main = vm;
- sm->vnet_main = vnet_get_main();
+ sm->vnet_main = vnet_get_main ();
sm->ip4_main = im;
sm->ip4_lookup_main = lm;
sm->api_main = &api_main;
@@ -2307,10 +1880,10 @@ static clib_error_t * snat_init (vlib_main_t * vm)
{
tr = (vlib_thread_registration_t *) p[0];
if (tr)
- {
- sm->num_workers = tr->count;
- sm->first_worker_index = tr->first_index;
- }
+ {
+ sm->num_workers = tr->count;
+ sm->first_worker_index = tr->first_index;
+ }
}
vec_validate (sm->per_thread_data, tm->n_vlib_mains - 1);
@@ -2318,9 +1891,9 @@ static clib_error_t * snat_init (vlib_main_t * vm)
/* Use all available workers by default */
if (sm->num_workers > 1)
{
- for (i=0; i < sm->num_workers; i++)
- bitmap = clib_bitmap_set (bitmap, i, 1);
- snat_set_workers(bitmap);
+ for (i = 0; i < sm->num_workers; i++)
+ bitmap = clib_bitmap_set (bitmap, i, 1);
+ snat_set_workers (bitmap);
clib_bitmap_free (bitmap);
}
else
@@ -2328,7 +1901,7 @@ static clib_error_t * snat_init (vlib_main_t * vm)
sm->per_thread_data[0].snat_thread_index = 0;
}
- error = snat_api_init(vm, sm);
+ error = snat_api_init (vm, sm);
if (error)
return error;
@@ -2346,35 +1919,36 @@ static clib_error_t * snat_init (vlib_main_t * vm)
nat_dpo_module_init ();
/* Init IPFIX logging */
- snat_ipfix_logging_init(vm);
+ snat_ipfix_logging_init (vm);
/* Init NAT64 */
- error = nat64_init(vm);
+ error = nat64_init (vm);
if (error)
return error;
- dslite_init(vm);
+ dslite_init (vm);
- nat66_init();
+ nat66_init ();
/* Init virtual fragmenentation reassembly */
- return nat_reass_init(vm);
+ return nat_reass_init (vm);
}
VLIB_INIT_FUNCTION (snat_init);
-void snat_free_outside_address_and_port (snat_address_t * addresses,
- u32 thread_index,
- snat_session_key_t * k)
+void
+snat_free_outside_address_and_port (snat_address_t * addresses,
+ u32 thread_index, snat_session_key_t * k)
{
snat_address_t *a;
u32 address_index;
u16 port_host_byte_order = clib_net_to_host_u16 (k->port);
- for (address_index = 0; address_index < vec_len (addresses); address_index++)
+ for (address_index = 0; address_index < vec_len (addresses);
+ address_index++)
{
if (addresses[address_index].addr.as_u32 == k->addr.as_u32)
- break;
+ break;
}
ASSERT (address_index < vec_len (addresses));
@@ -2400,28 +1974,14 @@ void snat_free_outside_address_and_port (snat_address_t * addresses,
}
}
-/**
- * @brief Match NAT44 static mapping.
- *
- * @param sm NAT main.
- * @param match Address and port to match.
- * @param mapping External or local address and port of the matched mapping.
- * @param by_external If 0 match by local address otherwise match by external
- * address.
- * @param is_addr_only If matched mapping is address only
- * @param twice_nat If matched mapping is twice NAT.
- * @param lb If matched mapping is load-balanced.
- *
- * @returns 0 if match found otherwise 1.
- */
-int snat_static_mapping_match (snat_main_t * sm,
- snat_session_key_t match,
- snat_session_key_t * mapping,
- u8 by_external,
- u8 *is_addr_only,
- twice_nat_type_t *twice_nat,
- lb_nat_type_t *lb,
- ip4_address_t * ext_host_addr)
+int
+snat_static_mapping_match (snat_main_t * sm,
+ snat_session_key_t match,
+ snat_session_key_t * mapping,
+ u8 by_external,
+ u8 * is_addr_only,
+ twice_nat_type_t * twice_nat,
+ lb_nat_type_t * lb, ip4_address_t * ext_host_addr)
{
clib_bihash_kv_8_8_t kv, value;
snat_static_mapping_t *m;
@@ -2450,7 +2010,7 @@ int snat_static_mapping_match (snat_main_t * sm,
m_key.protocol = 0;
kv.key = m_key.as_u64;
if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
- return 1;
+ return 1;
}
m = pool_elt_at_index (sm->static_mappings, value.value);
@@ -2458,59 +2018,63 @@ int snat_static_mapping_match (snat_main_t * sm,
if (by_external)
{
if (vec_len (m->locals))
- {
- if (PREDICT_FALSE(lb != 0))
- *lb = m->affinity ? AFFINITY_LB_NAT : LB_NAT;
- if (m->affinity)
- {
- if (nat_affinity_find_and_lock (ext_host_addr[0], match.addr,
- match.protocol, match.port, &backend_index))
- goto get_local;
-
- mapping->addr = m->locals[backend_index].addr;
- mapping->port = clib_host_to_net_u16 (m->locals[backend_index].port);
- mapping->fib_index = m->locals[backend_index].fib_index;
- goto end;
- }
-get_local:
- hi = vec_len (m->locals) - 1;
- rand = 1 + (random_u32 (&sm->random_seed) % m->locals[hi].prefix);
- while (lo < hi)
- {
- mid = ((hi - lo) >> 1) + lo;
- (rand > m->locals[mid].prefix) ? (lo = mid + 1) : (hi = mid);
- }
- if (!(m->locals[lo].prefix >= rand))
- return 1;
- if (PREDICT_FALSE (sm->num_workers > 1))
- {
- ip4_header_t ip = {
- .src_address = m->locals[lo].addr,
- };
- if (sm->worker_in2out_cb (&ip, m->fib_index) != vlib_get_thread_index ())
- goto get_local;
- }
- mapping->addr = m->locals[lo].addr;
- mapping->port = clib_host_to_net_u16 (m->locals[lo].port);
- mapping->fib_index = m->locals[lo].fib_index;
- if (m->affinity)
- {
- if (nat_affinity_create_and_lock (ext_host_addr[0], match.addr,
- match.protocol, match.port, lo, m->affinity,
- m->affinity_per_service_list_head_index))
- nat_log_info ("create affinity record failed");
- }
- }
+ {
+ if (PREDICT_FALSE (lb != 0))
+ *lb = m->affinity ? AFFINITY_LB_NAT : LB_NAT;
+ if (m->affinity)
+ {
+ if (nat_affinity_find_and_lock (ext_host_addr[0], match.addr,
+ match.protocol, match.port,
+ &backend_index))
+ goto get_local;
+
+ mapping->addr = m->locals[backend_index].addr;
+ mapping->port =
+ clib_host_to_net_u16 (m->locals[backend_index].port);
+ mapping->fib_index = m->locals[backend_index].fib_index;
+ goto end;
+ }
+ get_local:
+ hi = vec_len (m->locals) - 1;
+ rand = 1 + (random_u32 (&sm->random_seed) % m->locals[hi].prefix);
+ while (lo < hi)
+ {
+ mid = ((hi - lo) >> 1) + lo;
+ (rand > m->locals[mid].prefix) ? (lo = mid + 1) : (hi = mid);
+ }
+ if (!(m->locals[lo].prefix >= rand))
+ return 1;
+ if (PREDICT_FALSE (sm->num_workers > 1))
+ {
+ ip4_header_t ip = {
+ .src_address = m->locals[lo].addr,
+ };
+ if (sm->worker_in2out_cb (&ip, m->fib_index) !=
+ vlib_get_thread_index ())
+ goto get_local;
+ }
+ mapping->addr = m->locals[lo].addr;
+ mapping->port = clib_host_to_net_u16 (m->locals[lo].port);
+ mapping->fib_index = m->locals[lo].fib_index;
+ if (m->affinity)
+ {
+ if (nat_affinity_create_and_lock (ext_host_addr[0], match.addr,
+ match.protocol, match.port,
+ lo, m->affinity,
+ m->affinity_per_service_list_head_index))
+ nat_log_info ("create affinity record failed");
+ }
+ }
else
- {
- if (PREDICT_FALSE(lb != 0))
- *lb = NO_LB_NAT;
- mapping->fib_index = m->fib_index;
- mapping->addr = m->local_addr;
- /* Address only mapping doesn't change port */
- mapping->port = m->addr_only ? match.port
- : clib_host_to_net_u16 (m->local_port);
- }
+ {
+ if (PREDICT_FALSE (lb != 0))
+ *lb = NO_LB_NAT;
+ mapping->fib_index = m->fib_index;
+ mapping->addr = m->local_addr;
+ /* Address only mapping doesn't change port */
+ mapping->port = m->addr_only ? match.port
+ : clib_host_to_net_u16 (m->local_port);
+ }
mapping->protocol = m->proto;
}
else
@@ -2518,15 +2082,15 @@ get_local:
mapping->addr = m->external_addr;
/* Address only mapping doesn't change port */
mapping->port = m->addr_only ? match.port
- : clib_host_to_net_u16 (m->external_port);
+ : clib_host_to_net_u16 (m->external_port);
mapping->fib_index = sm->outside_fib_index;
}
end:
- if (PREDICT_FALSE(is_addr_only != 0))
+ if (PREDICT_FALSE (is_addr_only != 0))
*is_addr_only = m->addr_only;
- if (PREDICT_FALSE(twice_nat != 0))
+ if (PREDICT_FALSE (twice_nat != 0))
*twice_nat = m->twice_nat;
return 0;
@@ -2537,35 +2101,31 @@ snat_random_port (u16 min, u16 max)
{
snat_main_t *sm = &snat_main;
return min + random_u32 (&sm->random_seed) /
- (random_u32_max() / (max - min + 1) + 1);
+ (random_u32_max () / (max - min + 1) + 1);
}
int
snat_alloc_outside_address_and_port (snat_address_t * addresses,
- u32 fib_index,
- u32 thread_index,
- snat_session_key_t * k,
- u32 * address_indexp,
- u16 port_per_thread,
- u32 snat_thread_index)
+ u32 fib_index,
+ u32 thread_index,
+ snat_session_key_t * k,
+ u16 port_per_thread,
+ u32 snat_thread_index)
{
snat_main_t *sm = &snat_main;
- return sm->alloc_addr_and_port(addresses, fib_index, thread_index, k,
- address_indexp, port_per_thread,
- snat_thread_index);
+ return sm->alloc_addr_and_port (addresses, fib_index, thread_index, k,
+ port_per_thread, snat_thread_index);
}
static int
nat_alloc_addr_and_port_default (snat_address_t * addresses,
- u32 fib_index,
- u32 thread_index,
- snat_session_key_t * k,
- u32 * address_indexp,
- u16 port_per_thread,
- u32 snat_thread_index)
+ u32 fib_index,
+ u32 thread_index,
+ snat_session_key_t * k,
+ u16 port_per_thread, u32 snat_thread_index)
{
- int i, gi = 0;
+ int i;
snat_address_t *a, *ga = 0;
u32 portnum;
@@ -2573,7 +2133,7 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses,
{
a = addresses + i;
switch (k->protocol)
- {
+ {
#define _(N, j, n, s) \
case SNAT_PROTOCOL_##N: \
if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \
@@ -2592,23 +2152,21 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses,
a->busy_##n##_ports++; \
k->addr = a->addr; \
k->port = clib_host_to_net_u16(portnum); \
- *address_indexp = i; \
return 0; \
} \
} \
else if (a->fib_index == ~0) \
{ \
ga = a; \
- gi = i; \
} \
} \
break;
- foreach_snat_protocol
+ foreach_snat_protocol
#undef _
- default:
- nat_log_info ("unknown protocol");
- return 1;
- }
+ default:
+ nat_log_info ("unknown protocol");
+ return 1;
+ }
}
@@ -2631,7 +2189,6 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses,
a->busy_##n##_ports++; \
k->addr = a->addr; \
k->port = clib_host_to_net_u16(portnum); \
- *address_indexp = gi; \
return 0; \
}
break;
@@ -2644,18 +2201,16 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses,
}
/* Totally out of translations to use... */
- snat_ipfix_logging_addresses_exhausted(0);
+ snat_ipfix_logging_addresses_exhausted (0);
return 1;
}
static int
nat_alloc_addr_and_port_mape (snat_address_t * addresses,
- u32 fib_index,
- u32 thread_index,
- snat_session_key_t * k,
- u32 * address_indexp,
- u16 port_per_thread,
- u32 snat_thread_index)
+ u32 fib_index,
+ u32 thread_index,
+ snat_session_key_t * k,
+ u16 port_per_thread, u32 snat_thread_index)
{
snat_main_t *sm = &snat_main;
snat_address_t *a = addresses;
@@ -2683,7 +2238,6 @@ nat_alloc_addr_and_port_mape (snat_address_t * addresses,
a->busy_##n##_ports++; \
k->addr = a->addr; \
k->port = clib_host_to_net_u16 (portnum); \
- *address_indexp = i; \
return 0; \
} \
} \
@@ -2697,18 +2251,16 @@ nat_alloc_addr_and_port_mape (snat_address_t * addresses,
exhausted:
/* Totally out of translations to use... */
- snat_ipfix_logging_addresses_exhausted(0);
+ snat_ipfix_logging_addresses_exhausted (0);
return 1;
}
static int
nat_alloc_addr_and_port_range (snat_address_t * addresses,
- u32 fib_index,
- u32 thread_index,
- snat_session_key_t * k,
- u32 * address_indexp,
- u16 port_per_thread,
- u32 snat_thread_index)
+ u32 fib_index,
+ u32 thread_index,
+ snat_session_key_t * k,
+ u16 port_per_thread, u32 snat_thread_index)
{
snat_main_t *sm = &snat_main;
snat_address_t *a = addresses;
@@ -2734,7 +2286,6 @@ nat_alloc_addr_and_port_range (snat_address_t * addresses,
a->busy_##n##_ports++; \
k->addr = a->addr; \
k->port = clib_host_to_net_u16 (portnum); \
- *address_indexp = i; \
return 0; \
} \
} \
@@ -2748,7 +2299,7 @@ nat_alloc_addr_and_port_range (snat_address_t * addresses,
exhausted:
/* Totally out of translations to use... */
- snat_ipfix_logging_addresses_exhausted(0);
+ snat_ipfix_logging_addresses_exhausted (0);
return 1;
}
@@ -2766,7 +2317,7 @@ nat44_add_del_address_dpo (ip4_address_t addr, u8 is_add)
{
nat_dpo_create (DPO_PROTO_IP4, 0, &dpo_v4);
fib_table_entry_special_dpo_add (0, &pfx, FIB_SOURCE_PLUGIN_HI,
- FIB_ENTRY_FLAG_EXCLUSIVE, &dpo_v4);
+ FIB_ENTRY_FLAG_EXCLUSIVE, &dpo_v4);
dpo_reset (&dpo_v4);
}
else
@@ -2775,61 +2326,6 @@ nat44_add_del_address_dpo (ip4_address_t addr, u8 is_add)
}
}
-uword
-unformat_snat_protocol (unformat_input_t * input, va_list * args)
-{
- u32 *r = va_arg (*args, u32 *);
-
- if (0);
-#define _(N, i, n, s) else if (unformat (input, s)) *r = SNAT_PROTOCOL_##N;
- foreach_snat_protocol
-#undef _
- else
- return 0;
- return 1;
-}
-
-u8 *
-format_snat_protocol (u8 * s, va_list * args)
-{
- u32 i = va_arg (*args, u32);
- u8 *t = 0;
-
- switch (i)
- {
-#define _(N, j, n, str) case SNAT_PROTOCOL_##N: t = (u8 *) str; break;
- foreach_snat_protocol
-#undef _
- default:
- s = format (s, "unknown");
- return s;
- }
- s = format (s, "%s", t);
- return s;
-}
-
-u8 *
-format_nat_addr_and_port_alloc_alg (u8 * s, va_list * args)
-{
- u32 i = va_arg (*args, u32);
- u8 *t = 0;
-
- switch (i)
- {
-#define _(v, N, s) case NAT_ADDR_AND_PORT_ALLOC_ALG_##N: t = (u8 *) s; break;
- foreach_nat_addr_and_port_alloc_alg
-#undef _
- default:
- s = format (s, "unknown");
- return s;
- }
- s = format (s, "%s", t);
- return s;
-}
-
-u8 * format_snat_key (u8 * s, va_list * args);
-u8 * format_static_mapping_key (u8 * s, va_list * args);
-
u8 *
format_session_kvp (u8 * s, va_list * args)
{
@@ -2852,7 +2348,7 @@ format_static_mapping_kvp (u8 * s, va_list * args)
k.as_u64 = v->key;
s = format (s, "%U static-mapping-index %llu",
- format_static_mapping_key, &k, v->value);
+ format_static_mapping_key, &k, v->value);
return s;
}
@@ -2866,7 +2362,7 @@ format_user_kvp (u8 * s, va_list * args)
k.as_u64 = v->key;
s = format (s, "%U fib %d user-index %llu", format_ip4_address, &k.addr,
- k.fib_index, v->value);
+ k.fib_index, v->value);
return s;
}
@@ -2880,10 +2376,11 @@ format_ed_session_kvp (u8 * s, va_list * args)
k.as_u64[0] = v->key[0];
k.as_u64[1] = v->key[1];
- s = format (s, "local %U:%d remote %U:%d proto %U fib %d session-index %llu",
- format_ip4_address, &k.l_addr, clib_net_to_host_u16 (k.l_port),
- format_ip4_address, &k.r_addr, clib_net_to_host_u16 (k.r_port),
- format_ip_protocol, k.proto, k.fib_index, v->value);
+ s =
+ format (s, "local %U:%d remote %U:%d proto %U fib %d session-index %llu",
+ format_ip4_address, &k.l_addr, clib_net_to_host_u16 (k.l_port),
+ format_ip4_address, &k.r_addr, clib_net_to_host_u16 (k.r_port),
+ format_ip_protocol, k.proto, k.fib_index, v->value);
return s;
}
@@ -2897,7 +2394,7 @@ snat_get_worker_in2out_cb (ip4_header_t * ip0, u32 rx_fib_index0)
next_worker_index = sm->first_worker_index;
hash = ip0->src_address.as_u32 + (ip0->src_address.as_u32 >> 8) +
- (ip0->src_address.as_u32 >> 16) + (ip0->src_address.as_u32 >>24);
+ (ip0->src_address.as_u32 >> 16) + (ip0->src_address.as_u32 >> 24);
if (PREDICT_TRUE (is_pow2 (_vec_len (sm->workers))))
next_worker_index += sm->workers[hash & (_vec_len (sm->workers) - 1)];
@@ -2927,11 +2424,12 @@ snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0)
m_key.protocol = 0;
m_key.fib_index = rx_fib_index0;
kv.key = m_key.as_u64;
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
- {
- m = pool_elt_at_index (sm->static_mappings, value.value);
- return m->workers[0];
- }
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_external, &kv, &value))
+ {
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+ return m->workers[0];
+ }
}
proto = ip_proto_to_snat_proto (ip0->protocol);
@@ -2951,7 +2449,7 @@ snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0)
ip0->fragment_id, ip0->protocol);
if (reass && (reass->thread_index != (u32) ~ 0))
- return reass->thread_index;
+ return reass->thread_index;
else
return vlib_get_thread_index ();
}
@@ -2966,30 +2464,30 @@ snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0)
if (PREDICT_FALSE (ip0->protocol == IP_PROTOCOL_ICMP))
{
- icmp46_header_t * icmp = (icmp46_header_t *) udp;
- icmp_echo_header_t *echo = (icmp_echo_header_t *)(icmp + 1);
+ icmp46_header_t *icmp = (icmp46_header_t *) udp;
+ icmp_echo_header_t *echo = (icmp_echo_header_t *) (icmp + 1);
if (!icmp_is_error_message (icmp))
- port = echo->identifier;
+ port = echo->identifier;
else
- {
- ip4_header_t *inner_ip = (ip4_header_t *)(echo + 1);
- proto = ip_proto_to_snat_proto (inner_ip->protocol);
- void *l4_header = ip4_next_header (inner_ip);
- switch (proto)
- {
- case SNAT_PROTOCOL_ICMP:
- icmp = (icmp46_header_t*)l4_header;
- echo = (icmp_echo_header_t *)(icmp + 1);
- port = echo->identifier;
- break;
- case SNAT_PROTOCOL_UDP:
- case SNAT_PROTOCOL_TCP:
- port = ((tcp_udp_header_t*)l4_header)->src_port;
- break;
- default:
- return vlib_get_thread_index ();
- }
- }
+ {
+ ip4_header_t *inner_ip = (ip4_header_t *) (echo + 1);
+ proto = ip_proto_to_snat_proto (inner_ip->protocol);
+ void *l4_header = ip4_next_header (inner_ip);
+ switch (proto)
+ {
+ case SNAT_PROTOCOL_ICMP:
+ icmp = (icmp46_header_t *) l4_header;
+ echo = (icmp_echo_header_t *) (icmp + 1);
+ port = echo->identifier;
+ break;
+ case SNAT_PROTOCOL_UDP:
+ case SNAT_PROTOCOL_TCP:
+ port = ((tcp_udp_header_t *) l4_header)->src_port;
+ break;
+ default:
+ return vlib_get_thread_index ();
+ }
+ }
}
/* try static mappings with port */
@@ -3000,11 +2498,12 @@ snat_get_worker_out2in_cb (ip4_header_t * ip0, u32 rx_fib_index0)
m_key.protocol = proto;
m_key.fib_index = rx_fib_index0;
kv.key = m_key.as_u64;
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
- {
- m = pool_elt_at_index (sm->static_mappings, value.value);
- return m->workers[0];
- }
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_external, &kv, &value))
+ {
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+ return m->workers[0];
+ }
}
/* worker by outside port */
@@ -3029,11 +2528,12 @@ nat44_ed_get_worker_out2in_cb (ip4_header_t * ip, u32 rx_fib_index)
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
make_sm_kv (&kv, &ip->dst_address, 0, rx_fib_index, 0);
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
- {
- m = pool_elt_at_index (sm->static_mappings, value.value);
- return m->workers[0];
- }
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_external, &kv, &value))
+ {
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+ return m->workers[0];
+ }
}
proto = ip_proto_to_snat_proto (ip->protocol);
@@ -3050,51 +2550,52 @@ nat44_ed_get_worker_out2in_cb (ip4_header_t * ip, u32 rx_fib_index)
if (PREDICT_FALSE (ip->protocol == IP_PROTOCOL_ICMP))
{
- icmp46_header_t * icmp = (icmp46_header_t *) udp;
- icmp_echo_header_t *echo = (icmp_echo_header_t *)(icmp + 1);
+ icmp46_header_t *icmp = (icmp46_header_t *) udp;
+ icmp_echo_header_t *echo = (icmp_echo_header_t *) (icmp + 1);
if (!icmp_is_error_message (icmp))
- port = echo->identifier;
+ port = echo->identifier;
else
- {
- ip4_header_t *inner_ip = (ip4_header_t *)(echo + 1);
- proto = ip_proto_to_snat_proto (inner_ip->protocol);
- void *l4_header = ip4_next_header (inner_ip);
- switch (proto)
- {
- case SNAT_PROTOCOL_ICMP:
- icmp = (icmp46_header_t*)l4_header;
- echo = (icmp_echo_header_t *)(icmp + 1);
- port = echo->identifier;
- break;
- case SNAT_PROTOCOL_UDP:
- case SNAT_PROTOCOL_TCP:
- port = ((tcp_udp_header_t*)l4_header)->src_port;
- break;
- default:
- return vlib_get_thread_index ();
- }
- }
+ {
+ ip4_header_t *inner_ip = (ip4_header_t *) (echo + 1);
+ proto = ip_proto_to_snat_proto (inner_ip->protocol);
+ void *l4_header = ip4_next_header (inner_ip);
+ switch (proto)
+ {
+ case SNAT_PROTOCOL_ICMP:
+ icmp = (icmp46_header_t *) l4_header;
+ echo = (icmp_echo_header_t *) (icmp + 1);
+ port = echo->identifier;
+ break;
+ case SNAT_PROTOCOL_UDP:
+ case SNAT_PROTOCOL_TCP:
+ port = ((tcp_udp_header_t *) l4_header)->src_port;
+ break;
+ default:
+ return vlib_get_thread_index ();
+ }
+ }
}
/* try static mappings with port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
make_sm_kv (&kv, &ip->dst_address, proto, rx_fib_index,
- clib_net_to_host_u16 (port));
- if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
- {
- m = pool_elt_at_index (sm->static_mappings, value.value);
- if (!vec_len(m->locals))
- return m->workers[0];
+ clib_net_to_host_u16 (port));
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_external, &kv, &value))
+ {
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+ if (!vec_len (m->locals))
+ return m->workers[0];
- hash = ip->src_address.as_u32 + (ip->src_address.as_u32 >> 8) +
- (ip->src_address.as_u32 >> 16) + (ip->src_address.as_u32 >>24);
+ hash = ip->src_address.as_u32 + (ip->src_address.as_u32 >> 8) +
+ (ip->src_address.as_u32 >> 16) + (ip->src_address.as_u32 >> 24);
- if (PREDICT_TRUE (is_pow2 (_vec_len (m->workers))))
- return m->workers[hash & (_vec_len (m->workers) - 1)];
- else
- return m->workers[hash % _vec_len (m->workers)];
- }
+ if (PREDICT_TRUE (is_pow2 (_vec_len (m->workers))))
+ return m->workers[hash & (_vec_len (m->workers) - 1)];
+ else
+ return m->workers[hash % _vec_len (m->workers)];
+ }
}
/* worker by outside port */
@@ -3108,18 +2609,18 @@ nat44_ed_get_worker_out2in_cb (ip4_header_t * ip, u32 rx_fib_index)
static clib_error_t *
snat_config (vlib_main_t * vm, unformat_input_t * input)
{
- snat_main_t * sm = &snat_main;
- nat66_main_t * nm = &nat66_main;
+ snat_main_t *sm = &snat_main;
+ nat66_main_t *nm = &nat66_main;
u32 translation_buckets = 1024;
- u32 translation_memory_size = 128<<20;
+ u32 translation_memory_size = 128 << 20;
u32 user_buckets = 128;
- u32 user_memory_size = 64<<20;
+ u32 user_memory_size = 64 << 20;
u32 max_translations_per_user = 100;
u32 outside_vrf_id = 0;
u32 outside_ip6_vrf_id = 0;
u32 inside_vrf_id = 0;
u32 static_mapping_buckets = 1024;
- u32 static_mapping_memory_size = 64<<20;
+ u32 static_mapping_memory_size = 64 << 20;
u32 nat64_bib_buckets = 1024;
u32 nat64_bib_memory_size = 128 << 20;
u32 nat64_st_buckets = 2048;
@@ -3127,7 +2628,7 @@ snat_config (vlib_main_t * vm, unformat_input_t * input)
u8 static_mapping_only = 0;
u8 static_mapping_connection_tracking = 0;
snat_main_per_thread_data_t *tsm;
- dslite_main_t * dm = &dslite_main;
+ dslite_main_t *dm = &dslite_main;
sm->deterministic = 0;
sm->out2in_dpo = 0;
@@ -3135,68 +2636,66 @@ snat_config (vlib_main_t * vm, unformat_input_t * input)
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "translation hash buckets %d", &translation_buckets))
- ;
+ if (unformat
+ (input, "translation hash buckets %d", &translation_buckets))
+ ;
else if (unformat (input, "translation hash memory %d",
- &translation_memory_size));
+ &translation_memory_size));
else if (unformat (input, "user hash buckets %d", &user_buckets))
- ;
- else if (unformat (input, "user hash memory %d",
- &user_memory_size))
- ;
+ ;
+ else if (unformat (input, "user hash memory %d", &user_memory_size))
+ ;
else if (unformat (input, "max translations per user %d",
- &max_translations_per_user))
- ;
- else if (unformat (input, "outside VRF id %d",
- &outside_vrf_id))
- ;
- else if (unformat (input, "outside ip6 VRF id %d",
- &outside_ip6_vrf_id))
- ;
- else if (unformat (input, "inside VRF id %d",
- &inside_vrf_id))
- ;
+ &max_translations_per_user))
+ ;
+ else if (unformat (input, "outside VRF id %d", &outside_vrf_id))
+ ;
+ else if (unformat (input, "outside ip6 VRF id %d", &outside_ip6_vrf_id))
+ ;
+ else if (unformat (input, "inside VRF id %d", &inside_vrf_id))
+ ;
else if (unformat (input, "static mapping only"))
- {
- static_mapping_only = 1;
- if (unformat (input, "connection tracking"))
- static_mapping_connection_tracking = 1;
- }
+ {
+ static_mapping_only = 1;
+ if (unformat (input, "connection tracking"))
+ static_mapping_connection_tracking = 1;
+ }
else if (unformat (input, "deterministic"))
- sm->deterministic = 1;
+ sm->deterministic = 1;
else if (unformat (input, "nat64 bib hash buckets %d",
- &nat64_bib_buckets))
- ;
+ &nat64_bib_buckets))
+ ;
else if (unformat (input, "nat64 bib hash memory %d",
- &nat64_bib_memory_size))
- ;
- else if (unformat (input, "nat64 st hash buckets %d", &nat64_st_buckets))
- ;
+ &nat64_bib_memory_size))
+ ;
+ else
+ if (unformat (input, "nat64 st hash buckets %d", &nat64_st_buckets))
+ ;
else if (unformat (input, "nat64 st hash memory %d",
- &nat64_st_memory_size))
- ;
+ &nat64_st_memory_size))
+ ;
else if (unformat (input, "out2in dpo"))
- sm->out2in_dpo = 1;
+ sm->out2in_dpo = 1;
else if (unformat (input, "dslite ce"))
- dslite_set_ce(dm, 1);
+ dslite_set_ce (dm, 1);
else if (unformat (input, "endpoint-dependent"))
- sm->endpoint_dependent = 1;
+ sm->endpoint_dependent = 1;
else
return clib_error_return (0, "unknown input '%U'",
format_unformat_error, input);
}
if (sm->deterministic && sm->endpoint_dependent)
- return clib_error_return (
- 0, "deterministic and endpoint-dependent modes are mutually exclusive");
+ return clib_error_return (0,
+ "deterministic and endpoint-dependent modes are mutually exclusive");
if (static_mapping_only && (sm->deterministic || sm->endpoint_dependent))
- return clib_error_return (
- 0, "static mapping only mode available only for simple nat");
+ return clib_error_return (0,
+ "static mapping only mode available only for simple nat");
if (sm->out2in_dpo && (sm->deterministic || sm->endpoint_dependent))
- return clib_error_return (
- 0, "out2in dpo mode available only for simple nat");
+ return clib_error_return (0,
+ "out2in dpo mode available only for simple nat");
/* for show commands, etc. */
sm->translation_buckets = translation_buckets;
@@ -3208,21 +2707,21 @@ snat_config (vlib_main_t * vm, unformat_input_t * input)
sm->max_translations_per_user = max_translations_per_user;
sm->outside_vrf_id = outside_vrf_id;
sm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
- outside_vrf_id,
- FIB_SOURCE_PLUGIN_HI);
+ outside_vrf_id,
+ FIB_SOURCE_PLUGIN_HI);
nm->outside_vrf_id = outside_ip6_vrf_id;
nm->outside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6,
- outside_ip6_vrf_id,
- FIB_SOURCE_PLUGIN_HI);
+ outside_ip6_vrf_id,
+ FIB_SOURCE_PLUGIN_HI);
sm->inside_vrf_id = inside_vrf_id;
sm->inside_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
- inside_vrf_id,
- FIB_SOURCE_PLUGIN_HI);
+ inside_vrf_id,
+ FIB_SOURCE_PLUGIN_HI);
sm->static_mapping_only = static_mapping_only;
sm->static_mapping_connection_tracking = static_mapping_connection_tracking;
- nat64_set_hash(nat64_bib_buckets, nat64_bib_memory_size, nat64_st_buckets,
- nat64_st_memory_size);
+ nat64_set_hash (nat64_bib_buckets, nat64_bib_memory_size, nat64_st_buckets,
+ nat64_st_memory_size);
if (sm->deterministic)
{
@@ -3235,29 +2734,30 @@ snat_config (vlib_main_t * vm, unformat_input_t * input)
else
{
if (sm->endpoint_dependent)
- {
- sm->worker_in2out_cb = snat_get_worker_in2out_cb;
- sm->worker_out2in_cb = nat44_ed_get_worker_out2in_cb;
- sm->in2out_node_index = nat44_ed_in2out_node.index;
- sm->in2out_output_node_index = nat44_ed_in2out_output_node.index;
- sm->out2in_node_index = nat44_ed_out2in_node.index;
- sm->icmp_match_in2out_cb = icmp_match_in2out_ed;
- sm->icmp_match_out2in_cb = icmp_match_out2in_ed;
- nat_affinity_init (vm);
- }
+ {
+ sm->worker_in2out_cb = snat_get_worker_in2out_cb;
+ sm->worker_out2in_cb = nat44_ed_get_worker_out2in_cb;
+ sm->in2out_node_index = nat44_ed_in2out_node.index;
+ sm->in2out_output_node_index = nat44_ed_in2out_output_node.index;
+ sm->out2in_node_index = nat44_ed_out2in_node.index;
+ sm->icmp_match_in2out_cb = icmp_match_in2out_ed;
+ sm->icmp_match_out2in_cb = icmp_match_out2in_ed;
+ nat_affinity_init (vm);
+ }
else
- {
- sm->worker_in2out_cb = snat_get_worker_in2out_cb;
- sm->worker_out2in_cb = snat_get_worker_out2in_cb;
- sm->in2out_node_index = snat_in2out_node.index;
- sm->in2out_output_node_index = snat_in2out_output_node.index;
- sm->out2in_node_index = snat_out2in_node.index;
- sm->icmp_match_in2out_cb = icmp_match_in2out_slow;
- sm->icmp_match_out2in_cb = icmp_match_out2in_slow;
- }
+ {
+ sm->worker_in2out_cb = snat_get_worker_in2out_cb;
+ sm->worker_out2in_cb = snat_get_worker_out2in_cb;
+ sm->in2out_node_index = snat_in2out_node.index;
+ sm->in2out_output_node_index = snat_in2out_output_node.index;
+ sm->out2in_node_index = snat_out2in_node.index;
+ sm->icmp_match_in2out_cb = icmp_match_in2out_slow;
+ sm->icmp_match_out2in_cb = icmp_match_out2in_slow;
+ }
if (!static_mapping_only ||
- (static_mapping_only && static_mapping_connection_tracking))
- {
+ (static_mapping_only && static_mapping_connection_tracking))
+ {
+ /* *INDENT-OFF* */
vec_foreach (tsm, sm->per_thread_data)
{
if (sm->endpoint_dependent)
@@ -3294,24 +2794,26 @@ snat_config (vlib_main_t * vm, unformat_input_t * input)
clib_bihash_set_kvp_format_fn_8_8 (&tsm->user_hash,
format_user_kvp);
}
+ /* *INDENT-ON* */
- }
+ }
else
- {
- sm->icmp_match_in2out_cb = icmp_match_in2out_fast;
- sm->icmp_match_out2in_cb = icmp_match_out2in_fast;
- }
+ {
+ sm->icmp_match_in2out_cb = icmp_match_in2out_fast;
+ sm->icmp_match_out2in_cb = icmp_match_out2in_fast;
+ }
clib_bihash_init_8_8 (&sm->static_mapping_by_local,
- "static_mapping_by_local", static_mapping_buckets,
- static_mapping_memory_size);
+ "static_mapping_by_local", static_mapping_buckets,
+ static_mapping_memory_size);
clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_local,
- format_static_mapping_kvp);
+ format_static_mapping_kvp);
clib_bihash_init_8_8 (&sm->static_mapping_by_external,
- "static_mapping_by_external", static_mapping_buckets,
- static_mapping_memory_size);
+ "static_mapping_by_external",
+ static_mapping_buckets,
+ static_mapping_memory_size);
clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_external,
- format_static_mapping_kvp);
+ format_static_mapping_kvp);
}
return 0;
@@ -3319,240 +2821,13 @@ snat_config (vlib_main_t * vm, unformat_input_t * input)
VLIB_CONFIG_FUNCTION (snat_config, "nat");
-u8 * format_snat_session_state (u8 * s, va_list * args)
-{
- u32 i = va_arg (*args, u32);
- u8 *t = 0;
-
- switch (i)
- {
-#define _(v, N, str) case SNAT_SESSION_##N: t = (u8 *) str; break;
- foreach_snat_session_state
-#undef _
- default:
- t = format (t, "unknown");
- }
- s = format (s, "%s", t);
- return s;
-}
-
-u8 * format_snat_key (u8 * s, va_list * args)
-{
- snat_session_key_t * key = va_arg (*args, snat_session_key_t *);
-
- s = format (s, "%U proto %U port %d fib %d",
- format_ip4_address, &key->addr,
- format_snat_protocol, key->protocol,
- clib_net_to_host_u16 (key->port), key->fib_index);
- return s;
-}
-
-u8 * format_static_mapping_key (u8 * s, va_list * args)
-{
- snat_session_key_t * key = va_arg (*args, snat_session_key_t *);
-
- s = format (s, "%U proto %U port %d fib %d",
- format_ip4_address, &key->addr,
- format_snat_protocol, key->protocol,
- key->port, key->fib_index);
- return s;
-}
-
-u8 * format_snat_session (u8 * s, va_list * args)
-{
- snat_main_per_thread_data_t * sm = va_arg (*args, snat_main_per_thread_data_t *);
- snat_session_t * sess = va_arg (*args, snat_session_t *);
-
- if (snat_is_unk_proto_session (sess))
- {
- s = format (s, " i2o %U proto %u fib %u\n",
- format_ip4_address, &sess->in2out.addr,
- clib_net_to_host_u16 (sess->in2out.port),
- sess->in2out.fib_index);
- s = format (s, " o2i %U proto %u fib %u\n",
- format_ip4_address, &sess->out2in.addr,
- clib_net_to_host_u16 (sess->out2in.port),
- sess->out2in.fib_index);
- }
- else
- {
- s = format (s, " i2o %U\n", format_snat_key, &sess->in2out);
- s = format (s, " o2i %U\n", format_snat_key, &sess->out2in);
- }
- if (is_ed_session (sess) || is_fwd_bypass_session (sess))
- {
- if (is_twice_nat_session (sess))
- {
- s = format (s, " external host o2i %U:%d i2o %U:%d\n",
- format_ip4_address, &sess->ext_host_addr,
- clib_net_to_host_u16 (sess->ext_host_port),
- format_ip4_address, &sess->ext_host_nat_addr,
- clib_net_to_host_u16 (sess->ext_host_nat_port));
- }
- else
- {
- if (sess->ext_host_addr.as_u32)
- s = format (s, " external host %U:%u\n",
- format_ip4_address, &sess->ext_host_addr,
- clib_net_to_host_u16 (sess->ext_host_port));
- }
- }
- s = format (s, " index %llu\n", sess - sm->sessions);
- s = format (s, " last heard %.2f\n", sess->last_heard);
- s = format (s, " total pkts %d, total bytes %lld\n",
- sess->total_pkts, sess->total_bytes);
- if (snat_is_session_static (sess))
- s = format (s, " static translation\n");
- else
- s = format (s, " dynamic translation\n");
- if (is_fwd_bypass_session (sess))
- s = format (s, " forwarding-bypass\n");
- if (is_lb_session (sess))
- s = format (s, " load-balancing\n");
- if (is_twice_nat_session (sess))
- s = format (s, " twice-nat\n");
-
- return s;
-}
-
-u8 * format_snat_user (u8 * s, va_list * args)
-{
- snat_main_per_thread_data_t * sm = va_arg (*args, snat_main_per_thread_data_t *);
- snat_user_t * u = va_arg (*args, snat_user_t *);
- int verbose = va_arg (*args, int);
- dlist_elt_t * head, * elt;
- u32 elt_index, head_index;
- u32 session_index;
- snat_session_t * sess;
-
- s = format (s, "%U: %d dynamic translations, %d static translations\n",
- format_ip4_address, &u->addr, u->nsessions, u->nstaticsessions);
-
- if (verbose == 0)
- return s;
-
- if (u->nsessions || u->nstaticsessions)
- {
- head_index = u->sessions_per_user_list_head_index;
- head = pool_elt_at_index (sm->list_pool, head_index);
-
- elt_index = head->next;
- elt = pool_elt_at_index (sm->list_pool, elt_index);
- session_index = elt->value;
-
- while (session_index != ~0)
- {
- sess = pool_elt_at_index (sm->sessions, session_index);
-
- s = format (s, " %U\n", format_snat_session, sm, sess);
-
- elt_index = elt->next;
- elt = pool_elt_at_index (sm->list_pool, elt_index);
- session_index = elt->value;
- }
- }
-
- return s;
-}
-
-u8 * format_snat_static_mapping (u8 * s, va_list * args)
-{
- snat_static_mapping_t *m = va_arg (*args, snat_static_mapping_t *);
- nat44_lb_addr_port_t *local;
-
- if (m->addr_only)
- s = format (s, "local %U external %U vrf %d %s %s",
- format_ip4_address, &m->local_addr,
- format_ip4_address, &m->external_addr,
- m->vrf_id,
- m->twice_nat == TWICE_NAT ? "twice-nat" :
- m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
- m->out2in_only ? "out2in-only" : "");
- else
- {
- if (vec_len (m->locals))
- {
- s = format (s, "%U external %U:%d %s %s",
- format_snat_protocol, m->proto,
- format_ip4_address, &m->external_addr, m->external_port,
- m->twice_nat == TWICE_NAT ? "twice-nat" :
- m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
- m->out2in_only ? "out2in-only" : "");
- vec_foreach (local, m->locals)
- s = format (s, "\n local %U:%d vrf %d probability %d\%",
- format_ip4_address, &local->addr, local->port,
- local->vrf_id, local->probability);
- }
- else
- s = format (s, "%U local %U:%d external %U:%d vrf %d %s %s",
- format_snat_protocol, m->proto,
- format_ip4_address, &m->local_addr, m->local_port,
- format_ip4_address, &m->external_addr, m->external_port,
- m->vrf_id,
- m->twice_nat == TWICE_NAT ? "twice-nat" :
- m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
- m->out2in_only ? "out2in-only" : "");
- }
- return s;
-}
-
-u8 * format_snat_static_map_to_resolve (u8 * s, va_list * args)
-{
- snat_static_map_resolve_t *m = va_arg (*args, snat_static_map_resolve_t *);
- vnet_main_t *vnm = vnet_get_main();
-
- if (m->addr_only)
- s = format (s, "local %U external %U vrf %d",
- format_ip4_address, &m->l_addr,
- format_vnet_sw_if_index_name, vnm, m->sw_if_index,
- m->vrf_id);
- else
- s = format (s, "%U local %U:%d external %U:%d vrf %d",
- format_snat_protocol, m->proto,
- format_ip4_address, &m->l_addr, m->l_port,
- format_vnet_sw_if_index_name, vnm, m->sw_if_index,
- m->e_port, m->vrf_id);
-
- return s;
-}
-
-u8 * format_det_map_ses (u8 * s, va_list * args)
-{
- snat_det_map_t * det_map = va_arg (*args, snat_det_map_t *);
- ip4_address_t in_addr, out_addr;
- u32 in_offset, out_offset;
- snat_det_session_t * ses = va_arg (*args, snat_det_session_t *);
- u32 * i = va_arg (*args, u32 *);
-
- u32 user_index = *i / SNAT_DET_SES_PER_USER;
- in_addr.as_u32 = clib_host_to_net_u32 (
- clib_net_to_host_u32(det_map->in_addr.as_u32) + user_index);
- in_offset = clib_net_to_host_u32(in_addr.as_u32) -
- clib_net_to_host_u32(det_map->in_addr.as_u32);
- out_offset = in_offset / det_map->sharing_ratio;
- out_addr.as_u32 = clib_host_to_net_u32(
- clib_net_to_host_u32(det_map->out_addr.as_u32) + out_offset);
- s = format (s, "in %U:%d out %U:%d external host %U:%d state: %U expire: %d\n",
- format_ip4_address, &in_addr,
- clib_net_to_host_u16 (ses->in_port),
- format_ip4_address, &out_addr,
- clib_net_to_host_u16 (ses->out.out_port),
- format_ip4_address, &ses->out.ext_host_addr,
- clib_net_to_host_u16 (ses->out.ext_host_port),
- format_snat_session_state, ses->state,
- ses->expire);
-
- return s;
-}
-
static void
nat_ip4_add_del_addr_only_sm_cb (ip4_main_t * im,
- uword opaque,
- u32 sw_if_index,
- ip4_address_t * address,
- u32 address_length,
- u32 if_address_index,
- u32 is_delete)
+ uword opaque,
+ u32 sw_if_index,
+ ip4_address_t * address,
+ u32 address_length,
+ u32 if_address_index, u32 is_delete)
{
snat_main_t *sm = &snat_main;
snat_static_map_resolve_t *rp;
@@ -3566,9 +2841,9 @@ nat_ip4_add_del_addr_only_sm_cb (ip4_main_t * im,
{
rp = sm->to_resolve + i;
if (rp->addr_only == 0)
- continue;
+ continue;
if (rp->sw_if_index == sw_if_index)
- goto match;
+ goto match;
}
return;
@@ -3588,12 +2863,12 @@ match:
{
/* Don't trip over lease renewal, static config */
if (m)
- return;
+ return;
}
else
{
if (!m)
- return;
+ return;
}
/* Indetity mapping? */
@@ -3603,27 +2878,23 @@ match:
l_addr.as_u32 = rp->l_addr.as_u32;
/* Add the static mapping */
rv = snat_add_static_mapping (l_addr,
- address[0],
- rp->l_port,
- rp->e_port,
- rp->vrf_id,
- rp->addr_only,
- ~0 /* sw_if_index */,
- rp->proto,
- !is_delete,
- 0, 0, rp->tag);
+ address[0],
+ rp->l_port,
+ rp->e_port,
+ rp->vrf_id,
+ rp->addr_only, ~0 /* sw_if_index */ ,
+ rp->proto, !is_delete, 0, 0, rp->tag);
if (rv)
nat_log_notice ("snat_add_static_mapping returned %d", rv);
}
static void
snat_ip4_add_del_interface_address_cb (ip4_main_t * im,
- uword opaque,
- u32 sw_if_index,
- ip4_address_t * address,
- u32 address_length,
- u32 if_address_index,
- u32 is_delete)
+ uword opaque,
+ u32 sw_if_index,
+ ip4_address_t * address,
+ u32 address_length,
+ u32 if_address_index, u32 is_delete)
{
snat_main_t *sm = &snat_main;
snat_static_map_resolve_t *rp;
@@ -3633,18 +2904,18 @@ snat_ip4_add_del_interface_address_cb (ip4_main_t * im,
u8 twice_nat = 0;
snat_address_t *addresses = sm->addresses;
- for (i = 0; i < vec_len(sm->auto_add_sw_if_indices); i++)
+ for (i = 0; i < vec_len (sm->auto_add_sw_if_indices); i++)
{
if (sw_if_index == sm->auto_add_sw_if_indices[i])
- goto match;
+ goto match;
}
- for (i = 0; i < vec_len(sm->auto_add_sw_if_indices_twice_nat); i++)
+ for (i = 0; i < vec_len (sm->auto_add_sw_if_indices_twice_nat); i++)
{
twice_nat = 1;
addresses = sm->twice_nat_addresses;
if (sw_if_index == sm->auto_add_sw_if_indices_twice_nat[i])
- goto match;
+ goto match;
}
return;
@@ -3653,98 +2924,99 @@ match:
if (!is_delete)
{
/* Don't trip over lease renewal, static config */
- for (j = 0; j < vec_len(addresses); j++)
- if (addresses[j].addr.as_u32 == address->as_u32)
- return;
+ for (j = 0; j < vec_len (addresses); j++)
+ if (addresses[j].addr.as_u32 == address->as_u32)
+ return;
(void) snat_add_address (sm, address, ~0, twice_nat);
/* Scan static map resolution vector */
for (j = 0; j < vec_len (sm->to_resolve); j++)
- {
- rp = sm->to_resolve + j;
- if (rp->addr_only)
- continue;
- /* On this interface? */
- if (rp->sw_if_index == sw_if_index)
- {
- /* Indetity mapping? */
- if (rp->l_addr.as_u32 == 0)
- l_addr.as_u32 = address[0].as_u32;
- else
- l_addr.as_u32 = rp->l_addr.as_u32;
- /* Add the static mapping */
- rv = snat_add_static_mapping (l_addr,
- address[0],
- rp->l_port,
- rp->e_port,
- rp->vrf_id,
- rp->addr_only,
- ~0 /* sw_if_index */,
- rp->proto,
- rp->is_add,
- 0, 0, rp->tag);
- if (rv)
- nat_log_notice ("snat_add_static_mapping returned %d", rv);
- }
- }
+ {
+ rp = sm->to_resolve + j;
+ if (rp->addr_only)
+ continue;
+ /* On this interface? */
+ if (rp->sw_if_index == sw_if_index)
+ {
+ /* Indetity mapping? */
+ if (rp->l_addr.as_u32 == 0)
+ l_addr.as_u32 = address[0].as_u32;
+ else
+ l_addr.as_u32 = rp->l_addr.as_u32;
+ /* Add the static mapping */
+ rv = snat_add_static_mapping (l_addr,
+ address[0],
+ rp->l_port,
+ rp->e_port,
+ rp->vrf_id,
+ rp->addr_only,
+ ~0 /* sw_if_index */ ,
+ rp->proto,
+ rp->is_add, 0, 0, rp->tag);
+ if (rv)
+ nat_log_notice ("snat_add_static_mapping returned %d", rv);
+ }
+ }
return;
}
else
{
- (void) snat_del_address(sm, address[0], 1, twice_nat);
+ (void) snat_del_address (sm, address[0], 1, twice_nat);
return;
}
}
-int snat_add_interface_address (snat_main_t *sm, u32 sw_if_index, int is_del,
- u8 twice_nat)
+int
+snat_add_interface_address (snat_main_t * sm, u32 sw_if_index, int is_del,
+ u8 twice_nat)
{
- ip4_main_t * ip4_main = sm->ip4_main;
- ip4_address_t * first_int_addr;
+ ip4_main_t *ip4_main = sm->ip4_main;
+ ip4_address_t *first_int_addr;
snat_static_map_resolve_t *rp;
u32 *indices_to_delete = 0;
int i, j;
u32 *auto_add_sw_if_indices =
- twice_nat ? sm->auto_add_sw_if_indices_twice_nat : sm->auto_add_sw_if_indices;
+ twice_nat ? sm->
+ auto_add_sw_if_indices_twice_nat : sm->auto_add_sw_if_indices;
- first_int_addr = ip4_interface_first_address (ip4_main, sw_if_index,
- 0 /* just want the address*/);
+ first_int_addr = ip4_interface_first_address (ip4_main, sw_if_index, 0 /* just want the address */
+ );
- for (i = 0; i < vec_len(auto_add_sw_if_indices); i++)
+ for (i = 0; i < vec_len (auto_add_sw_if_indices); i++)
{
if (auto_add_sw_if_indices[i] == sw_if_index)
- {
- if (is_del)
- {
- /* if have address remove it */
- if (first_int_addr)
- (void) snat_del_address (sm, first_int_addr[0], 1, twice_nat);
- else
- {
- for (j = 0; j < vec_len (sm->to_resolve); j++)
- {
- rp = sm->to_resolve + j;
- if (rp->sw_if_index == sw_if_index)
- vec_add1 (indices_to_delete, j);
- }
- if (vec_len(indices_to_delete))
- {
- for (j = vec_len(indices_to_delete)-1; j >= 0; j--)
- vec_del1(sm->to_resolve, j);
- vec_free(indices_to_delete);
- }
- }
- if (twice_nat)
- vec_del1(sm->auto_add_sw_if_indices_twice_nat, i);
- else
- vec_del1(sm->auto_add_sw_if_indices, i);
- }
- else
- return VNET_API_ERROR_VALUE_EXIST;
+ {
+ if (is_del)
+ {
+ /* if have address remove it */
+ if (first_int_addr)
+ (void) snat_del_address (sm, first_int_addr[0], 1, twice_nat);
+ else
+ {
+ for (j = 0; j < vec_len (sm->to_resolve); j++)
+ {
+ rp = sm->to_resolve + j;
+ if (rp->sw_if_index == sw_if_index)
+ vec_add1 (indices_to_delete, j);
+ }
+ if (vec_len (indices_to_delete))
+ {
+ for (j = vec_len (indices_to_delete) - 1; j >= 0; j--)
+ vec_del1 (sm->to_resolve, j);
+ vec_free (indices_to_delete);
+ }
+ }
+ if (twice_nat)
+ vec_del1 (sm->auto_add_sw_if_indices_twice_nat, i);
+ else
+ vec_del1 (sm->auto_add_sw_if_indices, i);
+ }
+ else
+ return VNET_API_ERROR_VALUE_EXIST;
- return 0;
- }
+ return 0;
+ }
}
if (is_del)
@@ -3752,20 +3024,20 @@ int snat_add_interface_address (snat_main_t *sm, u32 sw_if_index, int is_del,
/* add to the auto-address list */
if (twice_nat)
- vec_add1(sm->auto_add_sw_if_indices_twice_nat, sw_if_index);
+ vec_add1 (sm->auto_add_sw_if_indices_twice_nat, sw_if_index);
else
- vec_add1(sm->auto_add_sw_if_indices, sw_if_index);
+ vec_add1 (sm->auto_add_sw_if_indices, sw_if_index);
/* If the address is already bound - or static - add it now */
if (first_int_addr)
- (void) snat_add_address (sm, first_int_addr, ~0, twice_nat);
+ (void) snat_add_address (sm, first_int_addr, ~0, twice_nat);
return 0;
}
int
-nat44_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port,
- snat_protocol_t proto, u32 vrf_id, int is_in)
+nat44_del_session (snat_main_t * sm, ip4_address_t * addr, u16 port,
+ snat_protocol_t proto, u32 vrf_id, int is_in)
{
snat_main_per_thread_data_t *tsm;
clib_bihash_kv_8_8_t kv, value;
@@ -3795,7 +3067,7 @@ nat44_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port,
if (!clib_bihash_search_8_8 (t, &kv, &value))
{
if (pool_is_free_index (tsm->sessions, value.value))
- return VNET_API_ERROR_UNSPECIFIED;
+ return VNET_API_ERROR_UNSPECIFIED;
s = pool_elt_at_index (tsm->sessions, value.value);
nat_free_session_data (sm, s, tsm - sm->per_thread_data);
@@ -3807,9 +3079,9 @@ nat44_del_session (snat_main_t *sm, ip4_address_t *addr, u16 port,
}
int
-nat44_del_ed_session (snat_main_t *sm, ip4_address_t *addr, u16 port,
- ip4_address_t *eh_addr, u16 eh_port, u8 proto,
- u32 vrf_id, int is_in)
+nat44_del_ed_session (snat_main_t * sm, ip4_address_t * addr, u16 port,
+ ip4_address_t * eh_addr, u16 eh_port, u8 proto,
+ u32 vrf_id, int is_in)
{
ip4_header_t ip;
clib_bihash_16_8_t *t;
@@ -3836,7 +3108,7 @@ nat44_del_ed_session (snat_main_t *sm, ip4_address_t *addr, u16 port,
key.l_port = clib_host_to_net_u16 (port);
key.r_port = clib_host_to_net_u16 (eh_port);
key.proto = proto;
- key.fib_index = clib_host_to_net_u32 (fib_index);
+ key.fib_index = fib_index;
kv.key[0] = key.as_u64[0];
kv.key[1] = key.as_u64[1];
if (clib_bihash_search_16_8 (t, &kv, &value))
@@ -3882,3 +3154,10 @@ nat_set_alloc_addr_and_port_default (void)
sm->alloc_addr_and_port = nat_alloc_addr_and_port_default;
}
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */