There are new chunks added in Linux SCTP not being traced by iptables.
This patch introduces the following chunks for tracing:
I_DATA, I_FORWARD_TSN (RFC8260), RE_CONFIG(RFC6525) and PAD(RFC4820)
Signed-off-by: Yuxuan Luo <luoyuxuan.carl@xxxxxxxxx>
---
extensions/libxt_sctp.c | 4 ++++
extensions/libxt_sctp.man | 4 +++-
extensions/libxt_sctp.t | 4 ++++
3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/extensions/libxt_sctp.c b/extensions/libxt_sctp.c
index a4c5415f..3fb6cf1a 100644
--- a/extensions/libxt_sctp.c
+++ b/extensions/libxt_sctp.c
@@ -112,9 +112,13 @@ static const struct sctp_chunk_names sctp_chunk_names[]
{ .name = "ECN_ECNE", .chunk_type = 12, .valid_flags = "--------", .nftname = "ecne" },
{ .name = "ECN_CWR", .chunk_type = 13, .valid_flags = "--------", .nftname = "cwr" },
{ .name = "SHUTDOWN_COMPLETE", .chunk_type = 14, .valid_flags = "-------T", .nftname = "shutdown-complete" },
+ { .name = "I_DATA", .chunk_type = 64, .valid_flags = "----IUBE", .nftname = "i-data"},
+ { .name = "RE_CONFIG", .chunk_type = 130, .valid_flags = "--------", .nftname = "re-config"},
+ { .name = "PAD", .chunk_type = 132, .valid_flags = "--------", .nftname = "pad"},
{ .name = "ASCONF", .chunk_type = 193, .valid_flags = "--------", .nftname = "asconf" },
{ .name = "ASCONF_ACK", .chunk_type = 128, .valid_flags = "--------", .nftname = "asconf-ack" },
{ .name = "FORWARD_TSN", .chunk_type = 192, .valid_flags = "--------", .nftname = "forward-tsn" },
+ { .name = "I_FORWARD_TSN", .chunk_type = 194, .valid_flags = "--------", .nftname = "i-forward-tsn" },
};
static void
diff --git a/extensions/libxt_sctp.man b/extensions/libxt_sctp.man
index 3e5ffa09..06da04f8 100644
--- a/extensions/libxt_sctp.man
+++ b/extensions/libxt_sctp.man
@@ -19,12 +19,14 @@ Match if any of the given chunk types is present with given flags.
only
Match if only the given chunk types are present with given flags and none are missing.
-Chunk types: DATA INIT INIT_ACK SACK HEARTBEAT HEARTBEAT_ACK ABORT SHUTDOWN SHUTDOWN_ACK ERROR COOKIE_ECHO COOKIE_ACK ECN_ECNE ECN_CWR SHUTDOWN_COMPLETE ASCONF ASCONF_ACK FORWARD_TSN
+Chunk types: DATA INIT INIT_ACK SACK HEARTBEAT HEARTBEAT_ACK ABORT SHUTDOWN SHUTDOWN_ACK ERROR COOKIE_ECHO COOKIE_ACK ECN_ECNE ECN_CWR SHUTDOWN_COMPLETE I_DATA RE_CONFIG PAD ASCONF ASCONF_ACK FORWARD_TSN I_FORWARD_TSN
chunk type available flags
.br
DATA I U B E i u b e
.br
+I_DATA I U B E i u b e
+.br
ABORT T t
.br
SHUTDOWN_COMPLETE T t
diff --git a/extensions/libxt_sctp.t b/extensions/libxt_sctp.t
index 4016e4fb..4d3b113d 100644
--- a/extensions/libxt_sctp.t
+++ b/extensions/libxt_sctp.t
@@ -27,3 +27,7 @@
-p sctp -m sctp --chunk-types all ASCONF_ACK;=;OK
-p sctp -m sctp --chunk-types all FORWARD_TSN;=;OK
-p sctp -m sctp --chunk-types all SHUTDOWN_COMPLETE;=;OK
+-p sctp -m sctp --chunk-types all I_DATA;=;OK
+-p sctp -m sctp --chunk-types all RE_CONFIG;=;OK
+-p sctp -m sctp --chunk-types all PAD;=;OK
+-p sctp -m sctp --chunk-types all I_FORWARD_TSN;=;OK
--
2.31.1
