From fc805c253c4ec40ae6f6b1b48eb6bbbfb82a4a1e Mon Sep 17 00:00:00 2001
From: Aomx <aomx@riseup.net>
Date: Wed, 13 Jul 2016 14:48:25 +0200
Subject: [PATCH] added pretty printing for forward_tsn_chunk
---
gtests/net/packetdrill/sctp_chunk_to_string.c | 43 +++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/gtests/net/packetdrill/sctp_chunk_to_string.c b/gtests/net/packetdrill/sctp_chunk_to_string.c
index 2cb43820..16b0af4d 100644
--- a/gtests/net/packetdrill/sctp_chunk_to_string.c
+++ b/gtests/net/packetdrill/sctp_chunk_to_string.c
@@ -1654,6 +1654,45 @@ static int sctp_reconfig_chunk_to_string(
return result;
}
+static u16 get_num_sid_blocks (u16 packet_length) {
+ return (packet_length - sizeof(struct sctp_forward_tsn_chunk)) / sizeof(struct sctp_stream_identifier_block);
+}
+
+static int sctp_forward_tsn_chunk_to_string(
+ FILE *s,
+ struct sctp_forward_tsn_chunk *chunk,
+ char **error)
+{
+ u16 length, i;
+ length = ntohs(chunk->length);
+ u16 num_sid_blocks = get_num_sid_blocks(length);
+
+ if (length < sizeof(struct sctp_forward_tsn_chunk)) {
+ asprintf(error, "FORWARD_TSN chunk too short (length=%u)", length);
+ return STATUS_ERR;
+ }
+
+ fputs("FORWARD_TSN[", s);
+ fprintf(s, "flgs=0x%02x, ", chunk->flags);
+ fprintf(s, "len=%u, ", length);
+ fprintf(s, "cum_tsn=%d, ", ntohl(chunk->cum_tsn));
+
+ fprintf(s, "sids=[");
+
+ for (i = 0; i < num_sid_blocks; i++) {
+ fprintf(s, "%u:%u",
+ ntohs(chunk->stream_identifier_blocks[i].stream),
+ ntohs(chunk->stream_identifier_blocks[i].stream_sequence));
+ if (i != num_sid_blocks-1) {
+ fprintf(s, ", ");
+ }
+ }
+
+ fprintf(s, "]");
+
+ return STATUS_OK;
+}
+
static int sctp_unknown_chunk_to_string(FILE *s,
struct sctp_chunk *chunk,
char **error)
@@ -1750,6 +1789,10 @@ int sctp_chunk_to_string(FILE *s, struct sctp_chunk *chunk, char **error)
result = sctp_reconfig_chunk_to_string(s,
(struct sctp_reconfig_chunk *)chunk, error);
break;
+ case SCTP_FORWARD_TSN_CHUNK_TYPE:
+ result = sctp_forward_tsn_chunk_to_string(s,
+ (struct sctp_forward_tsn_chunk *)chunk, error);
+ break;
default:
result = sctp_unknown_chunk_to_string(s, chunk, error);
break;
--
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