Author: tuexen
Date: Sun Jul 1 09:00:29 2012
New Revision: 237913
URL: http://svn.freebsd.org/changeset/base/237913
Log:
MFC r237230:
Add rate limitation for SCTP OOTB responses.
Modified:
stable/9/sys/netinet/icmp_var.h
stable/9/sys/netinet/ip_icmp.c
stable/9/sys/netinet/sctp_input.c
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/netinet/icmp_var.h
==============================================================================
--- stable/9/sys/netinet/icmp_var.h Sun Jul 1 08:57:28 2012
(r237912)
+++ stable/9/sys/netinet/icmp_var.h Sun Jul 1 09:00:29 2012
(r237913)
@@ -102,7 +102,8 @@ extern int badport_bandlim(int);
#define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */
#define BANDLIM_RST_OPENPORT 4 /* No connection, listener */
#define BANDLIM_ICMP6_UNREACH 5
-#define BANDLIM_MAX 5
+#define BANDLIM_SCTP_OOTB 6
+#define BANDLIM_MAX 6
#endif
#endif
Modified: stable/9/sys/netinet/ip_icmp.c
==============================================================================
--- stable/9/sys/netinet/ip_icmp.c Sun Jul 1 08:57:28 2012
(r237912)
+++ stable/9/sys/netinet/ip_icmp.c Sun Jul 1 09:00:29 2012
(r237913)
@@ -965,7 +965,8 @@ badport_bandlim(int which)
{ "icmp tstamp response" },
{ "closed port RST response" },
{ "open port RST response" },
- { "icmp6 unreach response" }
+ { "icmp6 unreach response" },
+ { "sctp ootb response" }
};
/*
Modified: stable/9/sys/netinet/sctp_input.c
==============================================================================
--- stable/9/sys/netinet/sctp_input.c Sun Jul 1 08:57:28 2012
(r237912)
+++ stable/9/sys/netinet/sctp_input.c Sun Jul 1 09:00:29 2012
(r237913)
@@ -5972,15 +5972,8 @@ sctp_skip_csum_4:
struct sctp_init_chunk *init_chk, chunk_buf;
SCTP_STAT_INCR(sctps_noport);
-#ifdef ICMP_BANDLIM
- /*
- * we use the bandwidth limiting to protect against sending
- * too many ABORTS all at once. In this case these count the
- * same as an ICMP message.
- */
- if (badport_bandlim(0) < 0)
+ if (badport_bandlim(BANDLIM_SCTP_OOTB) < 0)
goto bad;
-#endif /* ICMP_BANDLIM */
SCTPDBG(SCTP_DEBUG_INPUT1,
"Sending a ABORT from packet entry!\n");
if (ch->chunk_type == SCTP_INITIATION) {
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