[DEBUG] DO NOT MERGE: dump corrupted buffer

Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>
kronosnet · Oct 13, 2019 · fbc01fe · fbc01fe
1 parent e981fdd
commit fbc01fe
Showing 1 changed file with 15 additions and 3 deletions.
diff --git a/libknet/threads_rx.c b/libknet/threads_rx.c
@@ -229,6 +229,16 @@ static int pckt_defrag(knet_handle_t knet_h, struct knet_header *inbuf, ssize_t
 	return 1;
 }
 
+static void dump_hex(const unsigned char *buf, ssize_t len)
+{
+	int i = 0;
+	printf("Dumping: %zd len\n", len);
+	for (i = 0; i < len; i++) {
+		printf("%x ", buf[i]);
+	}
+	printf("Dumped: %d\n", i);
+}
+
 static void _parse_recv_from_links(knet_handle_t knet_h, int sockfd, const struct knet_mmsghdr *msg)
 {
 	int err = 0, savederrno = 0;
@@ -360,7 +370,7 @@ static void _parse_recv_from_links(knet_handle_t knet_h, int sockfd, const struc
 
 		if (!_seq_num_lookup(src_host, inbuf->khp_data_seq_num, 0, 0)) {
 			if (src_host->link_handler_policy != KNET_LINK_POLICY_ACTIVE) {
-				log_debug(knet_h, KNET_SUB_RX, "Packet has already been delivered");
+				log_debug(knet_h, KNET_SUB_RX, "Packet has already been delivered: %u", inbuf->khp_data_seq_num);
 			}
 			return;
 		}
@@ -386,14 +396,16 @@ static void _parse_recv_from_links(knet_handle_t knet_h, int sockfd, const struc
 		}
 
 		if (inbuf->khp_data_len != len - KNET_HEADER_DATA_SIZE) {
-			log_debug(knet_h, KNET_SUB_RX, "BAD LEN ON RX AFTER DEFRAG: EXPECTED: %zu RECEIVED: %u (frags: %u)!!!", len - KNET_HEADER_DATA_SIZE, inbuf->khp_data_len, inbuf->khp_data_frag_num);
+			log_debug(knet_h, KNET_SUB_RX, "BAD LEN ON RX AFTER DEFRAG: EXPECTED: %zu RECEIVED: %u (frags: %u) seq: %u!!!", len - KNET_HEADER_DATA_SIZE, inbuf->khp_data_len, inbuf->khp_data_frag_num, inbuf->khp_data_seq_num);
 			sleep(1);
 			assert(0);
 		}
 
 		chksum = compute_chsum(inbuf->khp_data_userdata, len - KNET_HEADER_DATA_SIZE);
 		if (chksum != inbuf->khp_data_chksum) {
-			log_debug(knet_h, KNET_SUB_RX, "BAD CHECKSUM ON RX AFTER DEFRAG: CALCULATED: %u RECEIVED: %u len: %u (frags: %u)!!!", chksum, inbuf->khp_data_chksum, inbuf->khp_data_len, inbuf->khp_data_frag_num);
+			log_debug(knet_h, KNET_SUB_RX, "BAD CHECKSUM ON RX AFTER DEFRAG: CALCULATED: %u RECEIVED: %u len: %u (frags: %u) seq: %u!!!", chksum, inbuf->khp_data_chksum, inbuf->khp_data_len, inbuf->khp_data_frag_num, inbuf->khp_data_seq_num);
+			sleep(1);
+			dump_hex(inbuf->khp_data_userdata, len - KNET_HEADER_DATA_SIZE);
 			sleep(1);
 			assert(0);
 		}