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-rw-r--r--src/plugins/unittest/session_test.c3
-rw-r--r--src/vnet/sctp/sctp_error.def3
-rw-r--r--src/vnet/sctp/sctp_input.c10
-rw-r--r--src/vnet/session/session_lookup.c34
-rw-r--r--src/vnet/session/session_lookup.h7
-rw-r--r--src/vnet/tcp/tcp_error.def3
-rw-r--r--src/vnet/tcp/tcp_input.c10
7 files changed, 47 insertions, 23 deletions
diff --git a/src/plugins/unittest/session_test.c b/src/plugins/unittest/session_test.c
index c504d8df15d..cc273321d32 100644
--- a/src/plugins/unittest/session_test.c
+++ b/src/plugins/unittest/session_test.c
@@ -1194,7 +1194,8 @@ session_test_rules (vlib_main_t * vm, unformat_input_t * input)
&is_filtered);
SESSION_TEST ((tc == 0), "lookup for 1.2.3.4/32 1234 5.6.7.8/16 4321 "
"should fail (deny rule)");
- SESSION_TEST ((is_filtered == 1), "lookup should be filtered (deny)");
+ SESSION_TEST ((is_filtered == SESSION_LOOKUP_RESULT_FILTERED),
+ "lookup should be filtered (deny)");
handle = session_lookup_local_endpoint (local_ns_index, &sep);
SESSION_TEST ((handle == SESSION_DROP_HANDLE), "lookup for 1.2.3.4/32 1234 "
diff --git a/src/vnet/sctp/sctp_error.def b/src/vnet/sctp/sctp_error.def
index 7326301e862..b95b71a9417 100644
--- a/src/vnet/sctp/sctp_error.def
+++ b/src/vnet/sctp/sctp_error.def
@@ -13,6 +13,8 @@
* limitations under the License.
*/
sctp_error (NONE, "no error")
+sctp_error (WRONG_WORKER, "Wrong worker thread")
+sctp_error (FILTERED, "Packets filtered")
sctp_error (PKTS_SENT, "Packets sent")
sctp_error (INVALID_CONNECTION, "Invalid connection")
sctp_error (INVALID_TAG, "Invalid verification tag")
@@ -47,5 +49,4 @@ sctp_error (EVENT_FIFO_FULL, "Events not sent for lack of event fifo space")
sctp_error (UNKNOWN_CHUNK, "Unrecognized / unknown chunk or chunk-state mismatch")
sctp_error (BUNDLING_VIOLATION, "Bundling not allowed")
sctp_error (PUNT, "Packets punted")
-sctp_error (FILTERED, "Packets filtered")
sctp_error (MAX_CONNECTIONS, "Reached max supported subconnection")
diff --git a/src/vnet/sctp/sctp_input.c b/src/vnet/sctp/sctp_input.c
index 4454f99e6bb..88e4eab754d 100644
--- a/src/vnet/sctp/sctp_input.c
+++ b/src/vnet/sctp/sctp_input.c
@@ -2114,7 +2114,7 @@ sctp46_input_dispatcher (vlib_main_t * vm, vlib_node_runtime_t * node,
{
u32 n_left_from, next_index, *from, *to_next;
u32 my_thread_index = vm->thread_index;
- u8 is_filtered;
+ u8 result;
sctp_main_t *tm = vnet_get_sctp_main ();
from = vlib_frame_vector_args (from_frame);
@@ -2175,7 +2175,7 @@ sctp46_input_dispatcher (vlib_main_t * vm, vlib_node_runtime_t * node,
sctp_hdr->src_port,
TRANSPORT_PROTO_SCTP,
my_thread_index,
- &is_filtered);
+ &result);
}
else
{
@@ -2198,7 +2198,7 @@ sctp46_input_dispatcher (vlib_main_t * vm, vlib_node_runtime_t * node,
sctp_hdr->src_port,
TRANSPORT_PROTO_SCTP,
my_thread_index,
- &is_filtered);
+ &result);
}
/* Length check */
@@ -2256,10 +2256,10 @@ sctp46_input_dispatcher (vlib_main_t * vm, vlib_node_runtime_t * node,
}
else
{
- if (is_filtered)
+ if (result)
{
next0 = SCTP_INPUT_NEXT_DROP;
- error0 = SCTP_ERROR_FILTERED;
+ error0 = SCTP_ERROR_NONE + result;
}
else if ((is_ip4 && tm->punt_unknown4) ||
(!is_ip4 && tm->punt_unknown6))
diff --git a/src/vnet/session/session_lookup.c b/src/vnet/session/session_lookup.c
index c410dab121f..931c3d0f9e2 100644
--- a/src/vnet/session/session_lookup.c
+++ b/src/vnet/session/session_lookup.c
@@ -852,7 +852,7 @@ transport_connection_t *
session_lookup_connection_wt4 (u32 fib_index, ip4_address_t * lcl,
ip4_address_t * rmt, u16 lcl_port,
u16 rmt_port, u8 proto, u32 thread_index,
- u8 * is_filtered)
+ u8 * result)
{
session_table_t *st;
session_kv4_t kv4;
@@ -871,7 +871,11 @@ session_lookup_connection_wt4 (u32 fib_index, ip4_address_t * lcl,
rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
if (rv == 0)
{
- ASSERT ((u32) (kv4.value >> 32) == thread_index);
+ if (PREDICT_FALSE ((u32) (kv4.value >> 32) != thread_index))
+ {
+ *result = SESSION_LOOKUP_RESULT_WRONG_THREAD;
+ return 0;
+ }
s = session_get (kv4.value & 0xFFFFFFFFULL, thread_index);
return tp_vfts[proto].get_connection (s->connection_index,
thread_index);
@@ -891,8 +895,11 @@ session_lookup_connection_wt4 (u32 fib_index, ip4_address_t * lcl,
rmt, lcl_port, rmt_port);
if (session_lookup_action_index_is_valid (action_index))
{
- if ((*is_filtered = (action_index == SESSION_RULES_TABLE_ACTION_DROP)))
- return 0;
+ if (action_index == SESSION_RULES_TABLE_ACTION_DROP)
+ {
+ *result = SESSION_LOOKUP_RESULT_FILTERED;
+ return 0;
+ }
if ((s = session_lookup_action_to_session (action_index,
FIB_PROTOCOL_IP4, proto)))
return tp_vfts[proto].get_listener (s->connection_index);
@@ -912,9 +919,8 @@ session_lookup_connection_wt4 (u32 fib_index, ip4_address_t * lcl,
/**
* Lookup connection with ip4 and transport layer information
*
- * Not optimized. This is used on the fast path so it needs to be fast.
- * Thereby, duplication of code and 'hacks' allowed. Lookup logic is identical
- * to that of @ref session_lookup_connection_wt4
+ * Not optimized. Lookup logic is identical to that of
+ * @ref session_lookup_connection_wt4
*
* @param fib_index index of the fib wherein the connection was received
* @param lcl local ip4 address
@@ -1070,7 +1076,7 @@ transport_connection_t *
session_lookup_connection_wt6 (u32 fib_index, ip6_address_t * lcl,
ip6_address_t * rmt, u16 lcl_port,
u16 rmt_port, u8 proto, u32 thread_index,
- u8 * is_filtered)
+ u8 * result)
{
session_table_t *st;
stream_session_t *s;
@@ -1087,6 +1093,11 @@ session_lookup_connection_wt6 (u32 fib_index, ip6_address_t * lcl,
if (rv == 0)
{
ASSERT ((u32) (kv6.value >> 32) == thread_index);
+ if (PREDICT_FALSE ((u32) (kv6.value >> 32) != thread_index))
+ {
+ *result = SESSION_LOOKUP_RESULT_WRONG_THREAD;
+ return 0;
+ }
s = session_get (kv6.value & 0xFFFFFFFFULL, thread_index);
return tp_vfts[proto].get_connection (s->connection_index,
thread_index);
@@ -1102,8 +1113,11 @@ session_lookup_connection_wt6 (u32 fib_index, ip6_address_t * lcl,
rmt, lcl_port, rmt_port);
if (session_lookup_action_index_is_valid (action_index))
{
- if ((*is_filtered = (action_index == SESSION_RULES_TABLE_ACTION_DROP)))
- return 0;
+ if (action_index == SESSION_RULES_TABLE_ACTION_DROP)
+ {
+ *result = SESSION_LOOKUP_RESULT_FILTERED;
+ return 0;
+ }
if ((s = session_lookup_action_to_session (action_index,
FIB_PROTOCOL_IP6, proto)))
return tp_vfts[proto].get_listener (s->connection_index);
diff --git a/src/vnet/session/session_lookup.h b/src/vnet/session/session_lookup.h
index 1acf923831d..212a11833a3 100644
--- a/src/vnet/session/session_lookup.h
+++ b/src/vnet/session/session_lookup.h
@@ -21,6 +21,13 @@
#include <vnet/session/transport.h>
#include <vnet/session/application_namespace.h>
+typedef enum session_lookup_result_
+{
+ SESSION_LOOKUP_RESULT_NONE,
+ SESSION_LOOKUP_RESULT_WRONG_THREAD,
+ SESSION_LOOKUP_RESULT_FILTERED
+} session_lookup_result_t;
+
stream_session_t *session_lookup_safe4 (u32 fib_index, ip4_address_t * lcl,
ip4_address_t * rmt, u16 lcl_port,
u16 rmt_port, u8 proto);
diff --git a/src/vnet/tcp/tcp_error.def b/src/vnet/tcp/tcp_error.def
index 141ca515995..0d6c44b5402 100644
--- a/src/vnet/tcp/tcp_error.def
+++ b/src/vnet/tcp/tcp_error.def
@@ -13,6 +13,8 @@
* limitations under the License.
*/
tcp_error (NONE, "no error")
+tcp_error (WRONG_THREAD, "Wrong worker thread")
+tcp_error (FILTERED, "Packets filtered")
tcp_error (LENGTH, "inconsistent ip/tcp lengths")
tcp_error (NO_LISTENER, "no listener for dst port")
tcp_error (LOOKUP_DROPS, "lookup drops")
@@ -40,7 +42,6 @@ tcp_error (INVALID_CONNECTION, "Invalid connection")
tcp_error (CONNECTION_CLOSED, "Connection closed")
tcp_error (CREATE_EXISTS, "Connection already exists")
tcp_error (PUNT, "Packets punted")
-tcp_error (FILTERED, "Packets filtered")
tcp_error (OPTIONS, "Could not parse options")
tcp_error (PAWS, "PAWS check failed")
tcp_error (RCV_WND, "Segment not in receive window")
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index 4358bd30d88..82ab817430f 100644
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -3295,7 +3295,7 @@ tcp_input_trace_frame (vlib_main_t * vm, vlib_node_runtime_t * node,
static void
tcp_input_set_error_next (tcp_main_t * tm, u16 * next, u32 * error, u8 is_ip4)
{
- if (*error == TCP_ERROR_FILTERED)
+ if (*error == TCP_ERROR_FILTERED || *error == TCP_ERROR_WRONG_THREAD)
{
*next = TCP_INPUT_NEXT_DROP;
}
@@ -3319,7 +3319,7 @@ tcp_input_lookup_buffer (vlib_buffer_t * b, u8 thread_index, u32 * error,
int n_advance_bytes, n_data_bytes;
transport_connection_t *tc;
tcp_header_t *tcp;
- u8 is_filtered = 0;
+ u8 result = 0;
if (is_ip4)
{
@@ -3345,7 +3345,7 @@ tcp_input_lookup_buffer (vlib_buffer_t * b, u8 thread_index, u32 * error,
tc = session_lookup_connection_wt4 (fib_index, &ip4->dst_address,
&ip4->src_address, tcp->dst_port,
tcp->src_port, TRANSPORT_PROTO_TCP,
- thread_index, &is_filtered);
+ thread_index, &result);
}
else
{
@@ -3371,7 +3371,7 @@ tcp_input_lookup_buffer (vlib_buffer_t * b, u8 thread_index, u32 * error,
tc = session_lookup_connection_wt6 (fib_index, &ip6->dst_address,
&ip6->src_address, tcp->dst_port,
tcp->src_port, TRANSPORT_PROTO_TCP,
- thread_index, &is_filtered);
+ thread_index, &result);
}
vnet_buffer (b)->tcp.seq_number = clib_net_to_host_u32 (tcp->seq_number);
@@ -3382,7 +3382,7 @@ tcp_input_lookup_buffer (vlib_buffer_t * b, u8 thread_index, u32 * error,
+ n_data_bytes;
vnet_buffer (b)->tcp.flags = 0;
- *error = is_filtered ? TCP_ERROR_FILTERED : *error;
+ *error = result ? TCP_ERROR_NONE + result : *error;
return tcp_get_connection_from_transport (tc);
}