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add BPF_ filters for misc. IS-IS PDU Types

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commit bd4881668c87901ee50a4bf648a4bcc2b38ad5c0 1 parent 531a7bb
hannes authored
Showing with 116 additions and 9 deletions.
  1. +69 −4 gencode.c
  2. +13 −1 gencode.h
  3. +9 −2 grammar.y
  4. +16 −1 nlpid.h
  5. +9 −1 scanner.l
View
73 gencode.c
@@ -21,7 +21,7 @@
*/
#ifndef lint
static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.181 2002-12-04 21:40:13 hannes Exp $ (LBL)";
+ "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.182 2002-12-06 00:01:33 hannes Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
@@ -2694,10 +2694,8 @@ struct block *
gen_proto_abbrev(proto)
int proto;
{
-#ifdef INET6
struct block *b0;
-#endif
- struct block *b1;
+ struct block *b1;
switch (proto) {
@@ -2854,6 +2852,66 @@ gen_proto_abbrev(proto)
b1 = gen_proto(ISO10589_ISIS, Q_ISO, Q_DEFAULT);
break;
+ case Q_ISIS_L1: /* all IS-IS Level1 PDU-Types */
+ b0 = gen_proto(ISIS_L1_LAN_IIH, Q_ISIS, Q_DEFAULT);
+ b1 = gen_proto(ISIS_PTP_IIH, Q_ISIS, Q_DEFAULT); /* FIXME extract the circuit-type bits */
+ gen_or(b0, b1);
+ b0 = gen_proto(ISIS_L1_LSP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ b0 = gen_proto(ISIS_L1_CSNP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ b0 = gen_proto(ISIS_L1_PSNP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ break;
+
+ case Q_ISIS_L2: /* all IS-IS Level2 PDU-Types */
+ b0 = gen_proto(ISIS_L2_LAN_IIH, Q_ISIS, Q_DEFAULT);
+ b1 = gen_proto(ISIS_PTP_IIH, Q_ISIS, Q_DEFAULT); /* FIXME extract the circuit-type bits */
+ gen_or(b0, b1);
+ b0 = gen_proto(ISIS_L2_LSP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ b0 = gen_proto(ISIS_L2_CSNP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ b0 = gen_proto(ISIS_L2_PSNP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ break;
+
+ case Q_ISIS_IIH: /* all IS-IS Hello PDU-Types */
+ b0 = gen_proto(ISIS_L1_LAN_IIH, Q_ISIS, Q_DEFAULT);
+ b1 = gen_proto(ISIS_L2_LAN_IIH, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ b0 = gen_proto(ISIS_PTP_IIH, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ break;
+
+ case Q_ISIS_LSP:
+ b0 = gen_proto(ISIS_L1_LSP, Q_ISIS, Q_DEFAULT);
+ b1 = gen_proto(ISIS_L2_LSP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ break;
+
+ case Q_ISIS_SNP:
+ b0 = gen_proto(ISIS_L1_CSNP, Q_ISIS, Q_DEFAULT);
+ b1 = gen_proto(ISIS_L2_CSNP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ b0 = gen_proto(ISIS_L1_PSNP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ b0 = gen_proto(ISIS_L2_PSNP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ break;
+
+ case Q_ISIS_CSNP:
+ b0 = gen_proto(ISIS_L1_PSNP, Q_ISIS, Q_DEFAULT);
+ b1 = gen_proto(ISIS_L2_PSNP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ break;
+
+ case Q_ISIS_PSNP:
+ b0 = gen_proto(ISIS_L1_PSNP, Q_ISIS, Q_DEFAULT);
+ b1 = gen_proto(ISIS_L2_PSNP, Q_ISIS, Q_DEFAULT);
+ gen_or(b0, b1);
+ break;
+
case Q_CLNP:
b1 = gen_proto(ISO8473_CLNP, Q_ISO, Q_DEFAULT);
break;
@@ -3509,6 +3567,13 @@ gen_proto(v, proto, dir)
return b1;
}
+ case Q_ISIS:
+ b0 = gen_proto(ISO10589_ISIS, Q_ISO, Q_DEFAULT);
+ /* 4 is the offset of the PDU type relative to the IS-IS header */
+ b1 = gen_cmp(off_nl_nosnap+4, BPF_B, (long)v);
+ gen_and(b0, b1);
+ return b1;
+
case Q_ARP:
bpf_error("arp does not encapsulate another protocol");
/* NOTREACHED */
View
14 gencode.h
@@ -18,7 +18,7 @@
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
- * @(#) $Header: /tcpdump/master/libpcap/gencode.h,v 1.55 2002-07-11 09:06:34 guy Exp $ (LBL)
+ * @(#) $Header: /tcpdump/master/libpcap/gencode.h,v 1.56 2002-12-06 00:01:34 hannes Exp $ (LBL)
*/
/*
@@ -107,6 +107,18 @@
#define Q_NETBEUI 30
+/* IS-IS Levels */
+#define Q_ISIS_L1 31
+#define Q_ISIS_L2 32
+/* PDU types */
+#define Q_ISIS_IIH 33
+#define Q_ISIS_LAN_IIH 34
+#define Q_ISIS_PTP_IIH 35
+#define Q_ISIS_SNP 36
+#define Q_ISIS_CSNP 37
+#define Q_ISIS_PSNP 38
+#define Q_ISIS_LSP 39
+
/* Directional qualifiers. */
#define Q_SRC 1
View
11 grammar.y
@@ -22,7 +22,7 @@
*/
#ifndef lint
static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/libpcap/grammar.y,v 1.77 2002-08-11 18:27:14 guy Exp $ (LBL)";
+ "@(#) $Header: /tcpdump/master/libpcap/grammar.y,v 1.78 2002-12-06 00:01:34 hannes Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
@@ -126,7 +126,7 @@ pcap_parse()
%token LEN
%token IPV6 ICMPV6 AH ESP
%token VLAN
-%token ISO ESIS ISIS CLNP
+%token ISO ESIS CLNP ISIS L1 L2 IIH LSP SNP CSNP PSNP
%token STP
%token IPX
%token NETBEUI
@@ -300,6 +300,13 @@ pname: LINK { $$ = Q_LINK; }
| ISO { $$ = Q_ISO; }
| ESIS { $$ = Q_ESIS; }
| ISIS { $$ = Q_ISIS; }
+ | L1 { $$ = Q_ISIS_L1; }
+ | L2 { $$ = Q_ISIS_L2; }
+ | IIH { $$ = Q_ISIS_IIH; }
+ | LSP { $$ = Q_ISIS_LSP; }
+ | SNP { $$ = Q_ISIS_SNP; }
+ | PSNP { $$ = Q_ISIS_PSNP; }
+ | CSNP { $$ = Q_ISIS_CSNP; }
| CLNP { $$ = Q_CLNP; }
| STP { $$ = Q_STP; }
| IPX { $$ = Q_IPX; }
View
17 nlpid.h
@@ -15,7 +15,7 @@
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
- * @(#) $Header: /tcpdump/master/libpcap/nlpid.h,v 1.1 2000-10-28 09:30:22 guy Exp $ (Juniper)
+ * @(#) $Header: /tcpdump/master/libpcap/nlpid.h,v 1.2 2002-12-06 00:01:34 hannes Exp $ (Juniper)
*/
/* Types missing from some systems */
@@ -35,6 +35,21 @@
#ifndef ISO10589_ISIS
#define ISO10589_ISIS 0x83
#endif
+/*
+ * this does not really belong in the nlpid.h file
+ * however we need it for generating nice
+ * IS-IS related BPF filters
+ */
+#define ISIS_L1_LAN_IIH 15
+#define ISIS_L2_LAN_IIH 16
+#define ISIS_PTP_IIH 17
+#define ISIS_L1_LSP 18
+#define ISIS_L2_LSP 20
+#define ISIS_L1_CSNP 24
+#define ISIS_L2_CSNP 25
+#define ISIS_L1_PSNP 26
+#define ISIS_L2_PSNP 27
+
#ifndef ISO8878A_CONS
#define ISO8878A_CONS 0x84
#endif
View
10 scanner.l
@@ -22,7 +22,7 @@
#ifndef lint
static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/libpcap/scanner.l,v 1.90 2002-08-08 08:22:47 guy Exp $ (LBL)";
+ "@(#) $Header: /tcpdump/master/libpcap/scanner.l,v 1.91 2002-12-06 00:01:35 hannes Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
@@ -214,6 +214,14 @@ esis return ESIS;
es-is return ESIS;
isis return ISIS;
is-is return ISIS;
+l1 return L1;
+l2 return L2;
+iih return IIH;
+lsp return LSP;
+snp return SNP;
+csnp return CSNP;
+psnp return PSNP;
+
clnp return CLNP;
stp return STP;
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