diff options
Diffstat (limited to 'src/plugins/gtpu/gtpu_decap.c')
| -rw-r--r-- | src/plugins/gtpu/gtpu_decap.c | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/src/plugins/gtpu/gtpu_decap.c b/src/plugins/gtpu/gtpu_decap.c index 4193e89c008..5e737d1560f 100644 --- a/src/plugins/gtpu/gtpu_decap.c +++ b/src/plugins/gtpu/gtpu_decap.c @@ -1212,6 +1212,7 @@ VLIB_INIT_FUNCTION (ip6_gtpu_bypass_init); #define foreach_gtpu_flow_error \ _(NONE, "no error") \ + _(PAYLOAD_ERROR, "Payload type errors") \ _(IP_CHECKSUM_ERROR, "Rx ip checksum errors") \ _(IP_HEADER_ERROR, "Rx ip header errors") \ _(UDP_CHECKSUM_ERROR, "Rx udp checksum errors") \ @@ -1428,7 +1429,16 @@ gtpu_flow_input (vlib_main_t * vm, /* Pop gtpu header */ vlib_buffer_advance (b0, gtpu_hdr_len0); - next0 = GTPU_INPUT_NEXT_IP4_INPUT; + /* assign the next node */ + if (PREDICT_FALSE (t0->decap_next_index != GTPU_INPUT_NEXT_IP4_INPUT) && + (t0->decap_next_index != GTPU_INPUT_NEXT_IP6_INPUT)) + { + error0 = GTPU_FLOW_ERROR_PAYLOAD_ERROR; + next0 = GTPU_INPUT_NEXT_DROP; + goto trace0; + } + next0 = t0->decap_next_index; + sw_if_index0 = t0->sw_if_index; /* Set packet input sw_if_index to unicast GTPU tunnel for learning */ @@ -1500,7 +1510,16 @@ trace0: /* Pop gtpu header */ vlib_buffer_advance (b1, gtpu_hdr_len1); - next1 = GTPU_INPUT_NEXT_IP4_INPUT; + /* assign the next node */ + if (PREDICT_FALSE (t1->decap_next_index != GTPU_INPUT_NEXT_IP4_INPUT) && + (t1->decap_next_index != GTPU_INPUT_NEXT_IP6_INPUT)) + { + next1 = GTPU_FLOW_ERROR_PAYLOAD_ERROR; + next1 = GTPU_INPUT_NEXT_DROP; + goto trace1; + } + next1 = t1->decap_next_index; + sw_if_index1 = t1->sw_if_index; /* Required to make the l2 tag push / pop code work on l2 subifs */ @@ -1620,7 +1639,16 @@ trace1: /* Pop gtpu header */ vlib_buffer_advance (b0, gtpu_hdr_len0); - next0 = GTPU_INPUT_NEXT_IP4_INPUT; + /* assign the next node */ + if (PREDICT_FALSE (t0->decap_next_index != GTPU_INPUT_NEXT_IP4_INPUT) && + (t0->decap_next_index != GTPU_INPUT_NEXT_IP6_INPUT)) + { + next0 = GTPU_FLOW_ERROR_PAYLOAD_ERROR; + next0 = GTPU_INPUT_NEXT_DROP; + goto trace00; + } + next0 = t0->decap_next_index; + sw_if_index0 = t0->sw_if_index; /* Set packet input sw_if_index to unicast GTPU tunnel for learning */ |