? 10
Index: gencode.c
===================================================================
RCS file: /cvs/src/lib/libpcap/gencode.c,v
retrieving revision 1.55
diff -u -p -r1.55 gencode.c
--- gencode.c	3 Aug 2020 03:40:02 -0000	1.55
+++ gencode.c	7 Dec 2020 11:31:12 -0000
@@ -1255,6 +1255,9 @@ gen_host(addr, mask, proto, dir)
 	case Q_STP:
 		bpf_error("'stp' modifier applied to host");
 
+	case Q_LACP:
+		bpf_error("'lacp' modifier applied to host");
+
 	case Q_ATALK:
 		bpf_error("ATALK host filtering not implemented");
 
@@ -1337,6 +1340,9 @@ gen_host6(addr, mask, proto, dir)
 	case Q_STP:
 		bpf_error("'stp' modifier applied to host");
 
+	case Q_LACP:
+		bpf_error("'lacp' modifier applied to host");
+
 	case Q_ATALK:
 		bpf_error("ATALK host filtering not implemented");
 
@@ -1512,6 +1518,22 @@ gen_proto_abbrev(proto)
 
 	case Q_STP:
 		b1 = gen_linktype(LLCSAP_8021D);
+		break;
+
+	case Q_LACP:
+		if (linktype != DLT_EN10MB) {
+			b1 = gen_false();
+			break;
+		}
+
+		/* SLOWPROTOCOLS_SUBTYPE_LACP */
+		b0 = gen_cmp(off_linktype + 2, BPF_B, 1);
+		/* SLOWPROTOCOLS_SUBTYPE_LACP_MARKER */
+		b1 = gen_cmp(off_linktype + 2, BPF_B, 2);
+		gen_or(b0, b1);
+
+		b0 = gen_cmp(off_linktype, BPF_H, ETHERTYPE_SLOW);
+		gen_and(b0, b1);
 		break;
 
 #ifdef INET6
Index: gencode.h
===================================================================
RCS file: /cvs/src/lib/libpcap/gencode.h,v
retrieving revision 1.21
diff -u -p -r1.21 gencode.h
--- gencode.h	3 Aug 2020 03:40:02 -0000	1.21
+++ gencode.h	7 Dec 2020 11:31:12 -0000
@@ -58,6 +58,7 @@
 
 #define Q_PIM		20
 #define Q_STP		21
+#define Q_LACP		22
 
 /* Directional qualifiers. */
 
Index: grammar.y
===================================================================
RCS file: /cvs/src/lib/libpcap/grammar.y,v
retrieving revision 1.22
diff -u -p -r1.22 grammar.y
--- grammar.y	3 Aug 2020 03:40:02 -0000	1.22
+++ grammar.y	7 Dec 2020 11:31:12 -0000
@@ -104,7 +104,7 @@ pcap_parse()
 %token  DST SRC HOST GATEWAY
 %token  NET MASK PORT LESS GREATER PROTO PROTOCHAIN BYTE
 %token  ARP RARP IP TCP UDP ICMP IGMP IGRP PIM
-%token  ATALK DECNET LAT SCA MOPRC MOPDL STP
+%token  ATALK DECNET LAT SCA MOPRC MOPDL STP LACP
 %token  TK_BROADCAST TK_MULTICAST
 %token  NUM INBOUND OUTBOUND
 %token  PF_IFNAME PF_RSET PF_RNR PF_SRNR PF_REASON PF_ACTION
@@ -269,6 +269,7 @@ pname:	  LINK			{ $$ = Q_LINK; }
 	| AH			{ $$ = Q_AH; }
 	| ESP			{ $$ = Q_ESP; }
 	| STP			{ $$ = Q_STP; }
+	| LACP			{ $$ = Q_LACP; }
 	;
 other:	  pqual TK_BROADCAST	{ $$ = gen_broadcast($1); }
 	| pqual TK_MULTICAST	{ $$ = gen_multicast($1); }
Index: scanner.l
===================================================================
RCS file: /cvs/src/lib/libpcap/scanner.l,v
retrieving revision 1.28
diff -u -p -r1.28 scanner.l
--- scanner.l	3 Aug 2020 03:40:02 -0000	1.28
+++ scanner.l	7 Dec 2020 11:31:12 -0000
@@ -193,6 +193,7 @@ sca		return SCA;
 moprc		return MOPRC;
 mopdl		return MOPDL;
 stp		return STP;
+lacp		return LACP;
 
 host		return HOST;
 net		return NET;