Author: ae
Date: Wed Mar 2 13:54:43 2016
New Revision: 296312
URL: https://svnweb.freebsd.org/changeset/base/296312
Log:
MFC r295969:
Fix bug in filling and handling ipfw's O_DSCP opcode.
Due to integer overflow CS4 token was handled as BE.
PR: 207459
Modified:
stable/9/sbin/ipfw/ipfw2.c
stable/9/sys/netpfil/ipfw/ip_fw2.c
Directory Properties:
stable/9/sbin/ipfw/ (props changed)
stable/9/sys/ (props changed)
stable/9/sys/netpfil/ (props changed)
Modified: stable/9/sbin/ipfw/ipfw2.c
==============================================================================
--- stable/9/sbin/ipfw/ipfw2.c Wed Mar 2 13:38:21 2016 (r296311)
+++ stable/9/sbin/ipfw/ipfw2.c Wed Mar 2 13:54:43 2016 (r296312)
@@ -779,7 +779,7 @@ fill_dscp(ipfw_insn *cmd, char *av, int
errx(EX_DATAERR, "Invalid DSCP value");
}
- if (code > 32)
+ if (code >= 32)
*high |= 1 << (code - 32);
else
*low |= 1 << code;
Modified: stable/9/sys/netpfil/ipfw/ip_fw2.c
==============================================================================
--- stable/9/sys/netpfil/ipfw/ip_fw2.c Wed Mar 2 13:38:21 2016
(r296311)
+++ stable/9/sys/netpfil/ipfw/ip_fw2.c Wed Mar 2 13:54:43 2016
(r296312)
@@ -1679,7 +1679,7 @@ do {
\
break;
/* DSCP bitmask is stored as low_u32 high_u32 */
- if (x > 32)
+ if (x >= 32)
match = *(p + 1) & (1 << (x - 32));
else
match = *p & (1 << x);
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