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Commit efd3eac0 authored by Florian Fainelli's avatar Florian Fainelli
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Update libpcap to 0.9.8 (#3571) 

SVN-Revision: 11742
parent c4f83e0b
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package/libpcap/Makefile
+ 3
− 3
View file @ efd3eac0
......@@ -9,12 +9,12 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=libpcap
PKG_VERSION:=0.9.4
PKG_VERSION:=0.9.8
PKG_RELEASE:=1
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=http://www.tcpdump.org/release/
PKG_MD5SUM:=79025766e8027df154cb1f32de8a7974
PKG_MD5SUM:=5208f24d0328ee7c20b52c43eaa9aa0e
include $(INCLUDE_DIR)/package.mk
......@@ -26,7 +26,7 @@ define Package/libpcap
endef
define Package/libpcap/description
This package contains a system-independent library for user-level network
This package contains a system-independent library for user-level network
packet capture.
endef
......
package/libpcap/patches/100-shared-lib.patch
+ 10
− 12
View file @ efd3eac0
Index: libpcap-0.9.4/Makefile.in
===================================================================
--- libpcap-0.9.4.orig/Makefile.in 2007-06-04 13:22:03.547316008 +0200
+++ libpcap-0.9.4/Makefile.in 2007-06-04 13:22:03.614305824 +0200
--- a/Makefile.in
+++ b/Makefile.in
@@ -37,6 +37,15 @@
srcdir = @srcdir@
VPATH = @srcdir@
+# some defines for shared library compilation
+MAJ=0.9
+MIN=4
+MIN=8
+VERSION=$(MAJ).$(MIN)
+LIBNAME=pcap
+LIBRARY=lib$(LIBNAME).a
......@@ -18,7 +16,7 @@ Index: libpcap-0.9.4/Makefile.in
#
# You shouldn't need to edit anything below.
#
@@ -50,6 +59,7 @@
@@ -52,6 +61,7 @@
# Standard CFLAGS
CFLAGS = $(CCOPT) $(INCLS) $(DEFS)
......@@ -26,7 +24,7 @@ Index: libpcap-0.9.4/Makefile.in
INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
@@ -70,7 +80,12 @@
@@ -72,7 +82,12 @@
.c.o:
@rm -f $@
$(CC) $(CFLAGS) -c $(srcdir)/$*.c
......@@ -39,7 +37,7 @@ Index: libpcap-0.9.4/Makefile.in
PSRC = pcap-@V_PCAP@.c
FSRC = fad-@V_FINDALLDEVS@.c
SSRC = @SSRC@
@@ -84,6 +99,7 @@
@@ -86,6 +101,7 @@
# We would like to say "OBJ = $(SRC:.c=.o)" but Ultrix's make cannot
# hack the extra indirection
OBJ = $(PSRC:.c=.o) $(FSRC:.c=.o) $(CSRC:.c=.o) $(SSRC:.c=.o) $(GENSRC:.c=.o) $(LIBOBJS)
......@@ -47,7 +45,7 @@ Index: libpcap-0.9.4/Makefile.in
HDR = pcap.h pcap-int.h pcap-namedb.h pcap-nit.h pcap-pf.h \
ethertype.h gencode.h gnuc.h
GENHDR = \
@@ -95,15 +111,23 @@
@@ -97,15 +113,23 @@
TAGFILES = \
$(SRC) $(HDR) $(TAGHDR)
......@@ -73,7 +71,7 @@ Index: libpcap-0.9.4/Makefile.in
shared: libpcap.$(DYEXT)
#
@@ -129,6 +153,10 @@
@@ -131,6 +155,10 @@
scanner.o: scanner.c tokdefs.h
$(CC) $(CFLAGS) -c scanner.c
......@@ -84,7 +82,7 @@ Index: libpcap-0.9.4/Makefile.in
pcap.o: version.h
tokdefs.h: grammar.c
@@ -142,9 +170,16 @@
@@ -144,9 +172,16 @@
@rm -f $@
$(CC) $(CFLAGS) -Dyylval=pcap_lval -c grammar.c
......@@ -101,7 +99,7 @@ Index: libpcap-0.9.4/Makefile.in
snprintf.o: $(srcdir)/missing/snprintf.c
$(CC) $(CFLAGS) -o $@ -c $(srcdir)/missing/snprintf.c
@@ -170,10 +205,17 @@
@@ -172,10 +207,17 @@
bpf_filter.o: bpf_filter.c
$(CC) $(CFLAGS) -c bpf_filter.c
......
package/libpcap/patches/101-cross-compile-fix.patch
+ 3
− 5
View file @ efd3eac0
Index: libpcap-0.9.4/Makefile.in
===================================================================
--- libpcap-0.9.4.orig/Makefile.in 2007-06-04 13:22:03.614305824 +0200
+++ libpcap-0.9.4/Makefile.in 2007-06-04 13:22:03.799277704 +0200
@@ -117,7 +117,7 @@
--- a/Makefile.in
+++ b/Makefile.in
@@ -119,7 +119,7 @@
libpcap.a: $(OBJ)
@rm -f $@
......
package/libpcap/patches/102-alt-ether.patch
+ 8
− 12
View file @ efd3eac0
Index: libpcap-0.9.4/nametoaddr.c
===================================================================
--- libpcap-0.9.4.orig/nametoaddr.c 2007-06-04 13:22:03.499323304 +0200
+++ libpcap-0.9.4/nametoaddr.c 2007-06-04 13:22:03.986249280 +0200
--- a/nametoaddr.c
+++ b/nametoaddr.c
@@ -410,7 +410,7 @@
e = ep = (u_char *)malloc(6);
......@@ -11,19 +9,17 @@ Index: libpcap-0.9.4/nametoaddr.c
s += 1;
d = xdtoi(*s++);
if (isxdigit((unsigned char)*s)) {
Index: libpcap-0.9.4/scanner.l
===================================================================
--- libpcap-0.9.4.orig/scanner.l 2007-06-04 13:22:03.506322240 +0200
+++ libpcap-0.9.4/scanner.l 2007-06-04 13:22:03.987249128 +0200
--- a/scanner.l
+++ b/scanner.l
@@ -80,6 +80,7 @@
N ([0-9]+|(0X|0x)[0-9A-Fa-f]+)
B ([0-9A-Fa-f][0-9A-Fa-f]?)
W ([0-9A-Fa-f][0-9A-Fa-f]?[0-9A-Fa-f]?[0-9A-Fa-f]?)
+X [0-9A-Fa-f]
%a 16000
%o 19000
@@ -306,7 +307,7 @@
%a 18400
%o 21500
@@ -310,7 +311,7 @@
{N} { yylval.i = stoi((char *)yytext); return NUM; }
({N}\.{N})|({N}\.{N}\.{N})|({N}\.{N}\.{N}\.{N}) {
yylval.s = sdup((char *)yytext); return HID; }
......@@ -32,7 +28,7 @@ Index: libpcap-0.9.4/scanner.l
return EID; }
{V6} {
#ifdef INET6
@@ -324,6 +325,7 @@
@@ -328,6 +329,7 @@
#endif /*INET6*/
}
{B}:+({B}:+)+ { bpf_error("bogus ethernet address %s", yytext); }
......
package/libpcap/patches/103-flex_workaround.patch
+ 3
− 5
View file @ efd3eac0
Copyright (C) 2006 Markus Wigge
Index: libpcap-0.9.4/Makefile.in
===================================================================
--- libpcap-0.9.4.orig/Makefile.in 2007-06-04 13:22:03.799277704 +0200
+++ libpcap-0.9.4/Makefile.in 2007-06-04 13:22:04.181219640 +0200
--- a/Makefile.in
+++ b/Makefile.in
@@ -53,7 +53,7 @@
CC = @CC@
CCOPT = @V_CCOPT@
......@@ -12,5 +10,5 @@ Index: libpcap-0.9.4/Makefile.in
-DEFS = @DEFS@ @V_DEFS@
+DEFS = -D_BSD_SOURCE @DEFS@ @V_DEFS@
LIBS = @V_LIBS@
DAGLIBS = @DAGLIBS@
DYEXT = @DYEXT@
package/libpcap/patches/104-no_rej_files.patch 0 → 100644
+ 469
− 0
View file @ efd3eac0
diff -urN libpcap-0.9.8/gencode.c.rej libpcap-0.9.8.new/gencode.c.rej
--- libpcap-0.9.8/gencode.c.rej 2007-07-10 21:38:15.000000000 +0200
+++ libpcap-0.9.8.new/gencode.c.rej 1970-01-01 01:00:00.000000000 +0100
@@ -1,465 +0,0 @@
-***************
-*** 24,29 ****
- "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.221.2.51 2007/06/14 20:54:12 gianluca Exp $ (LBL)";
- #endif
-
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
---- 24,31 ----
- "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.221.2.51 2007/06/14 20:54:12 gianluca Exp $ (LBL)";
- #endif
-
-+ #define ENABLE_WLAN_FILTERING_PATCH
-+
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-***************
-*** 144,150 ****
- OR_NET, /* relative to the network-layer header */
- OR_NET_NOSNAP, /* relative to the network-layer header, with no SNAP header at the link layer */
- OR_TRAN_IPV4, /* relative to the transport-layer header, with IPv4 network layer */
-- OR_TRAN_IPV6 /* relative to the transport-layer header, with IPv6 network layer */
- };
-
- /*
---- 146,153 ----
- OR_NET, /* relative to the network-layer header */
- OR_NET_NOSNAP, /* relative to the network-layer header, with no SNAP header at the link layer */
- OR_TRAN_IPV4, /* relative to the transport-layer header, with IPv4 network layer */
-+ OR_TRAN_IPV6, /* relative to the transport-layer header, with IPv6 network layer */
-+ OR_LINK_AFTER_WIRELESS_HDR /* After the 802.11 variable length header */
- };
-
- /*
-***************
-*** 199,204 ****
- static struct block *gen_linktype(int);
- static struct block *gen_snap(bpf_u_int32, bpf_u_int32, u_int);
- static struct block *gen_llc_linktype(int);
- static struct block *gen_hostop(bpf_u_int32, bpf_u_int32, int, int, u_int, u_int);
- #ifdef INET6
- static struct block *gen_hostop6(struct in6_addr *, struct in6_addr *, int, int, u_int, u_int);
---- 202,208 ----
- static struct block *gen_linktype(int);
- static struct block *gen_snap(bpf_u_int32, bpf_u_int32, u_int);
- static struct block *gen_llc_linktype(int);
-+ static struct block *gen_802_11_llc_linktype(int);
- static struct block *gen_hostop(bpf_u_int32, bpf_u_int32, int, int, u_int, u_int);
- #ifdef INET6
- static struct block *gen_hostop6(struct in6_addr *, struct in6_addr *, int, int, u_int, u_int);
-***************
-*** 242,247 ****
- static struct slist *xfer_to_a(struct arth *);
- static struct block *gen_mac_multicast(int);
- static struct block *gen_len(int, int);
-
- static struct block *gen_ppi_dlt_check();
- static struct block *gen_msg_abbrev(int type);
---- 246,252 ----
- static struct slist *xfer_to_a(struct arth *);
- static struct block *gen_mac_multicast(int);
- static struct block *gen_len(int, int);
-+ static struct block *gen_check_802_11_data_frame();
-
- static struct block *gen_ppi_dlt_check();
- static struct block *gen_msg_abbrev(int type);
-***************
-*** 1345,1350 ****
- return s;
- }
-
-
- /*
- * Load a value relative to the beginning of the specified header.
---- 1350,1487 ----
- return s;
- }
-
-+ /*
-+ * Load a value relative to the beginning of the link-layer header after the 802.11
-+ * header, i.e. LLC_SNAP.
-+ * The link-layer header doesn't necessarily begin at the beginning
-+ * of the packet data; there might be a variable-length prefix containing
-+ * radio information.
-+ */
-+ static struct slist *
-+ gen_load_ll_after_802_11_rel(offset, size)
-+ u_int offset, size;
-+ {
-+ struct slist *s, *s_load_fc;
-+ struct slist *sjset_qos;
-+ struct slist *s_load;
-+ struct slist *s_ld_a_2;
-+ struct slist *s_add_a_x;
-+ struct slist *s_a_to_x;
-+ struct slist *sjset_data_frame_1;
-+ struct slist *sjset_data_frame_2;
-+ struct slist *s_load_x_0;
-+
-+ /*
-+ * This code is not compatible with the optimizer, as
-+ * we are generating jmp instructions within a normal
-+ * slist of instructions
-+ *
-+ */
-+ no_optimize = 1;
-+
-+ s = gen_llprefixlen();
-+
-+ /*
-+ * If "s" is non-null, it has code to arrange that the X register
-+ * contains the length of the prefix preceding the link-layer
-+ * header.
-+ *
-+ * Otherwise, the length of the prefix preceding the link-layer
-+ * header is "off_ll".
-+ */
-+ if (s != NULL) {
-+ /*
-+ * There's a variable-length prefix preceding the
-+ * link-layer header. "s" points to a list of statements
-+ * that put the length of that prefix into the X register.
-+ * do an indirect load, to use the X register as an offset.
-+ */
-+
-+ /*
-+ * Load the Frame Control field
-+ */
-+ s_load_fc = new_stmt(BPF_LD|BPF_IND|BPF_B);
-+ s_load_fc->s.k = 0;
-+ } else {
-+ /*
-+ * There is no variable-length header preceding the
-+ * link-layer header; add in off_ll, which, if there's
-+ * a fixed-length header preceding the link-layer header,
-+ * is the length of that header.
-+ */
-+
-+ /*
-+ * We need to load the Frame control directly, and
-+ * then load X with a fake 0, i.e. the length of the
-+ * non-existing prepended header
-+ */
-+
-+ /*
-+ * TODO GV: I'm not sure if 0 is the right constant in this
-+ * case. If the link layer has a fixed length prepended header,
-+ * that should be the value that we put here
-+ */
-+
-+ /* Load 0 into X */
-+ s_load_x_0 = new_stmt(BPF_LDX|BPF_IMM);
-+ s_load_x_0->s.k = 0;
-+
-+ /*
-+ * TODO GV: I'm not sure if 0 is the right constant in this
-+ * case. If the link layer has a fixed length prepended header,
-+ * that should be the value that we put here
-+ */
-+
-+ /*
-+ * load the Frame Control with absolute access
-+ */
-+ s_load_fc = new_stmt(BPF_LD|BPF_ABS|BPF_B);
-+ s_load_fc->s.k = 0;
-+ s = s_load_x_0;
-+ }
-+
-+ /*
-+ * Generate the common instructions to check if it's a data frame
-+ * and if so compute the 802.11 header length
-+ */
-+ sjset_data_frame_1 = new_stmt(JMP(BPF_JSET)); // b3 should be 1
-+ sjset_data_frame_1->s.k = 0x8;
-+
-+ sjset_data_frame_2 = new_stmt(JMP(BPF_JSET)); // b2 should be 0
-+ sjset_data_frame_2->s.k = 0x04;
-+
-+ sjset_qos = new_stmt(JMP(BPF_JSET));
-+ sjset_qos->s.k = 0x80; //QOS bit
-+
-+ s_ld_a_2 = new_stmt(BPF_LD|BPF_IMM);
-+ s_ld_a_2->s.k = 2;
-+
-+ s_add_a_x = new_stmt(BPF_ALU|BPF_ADD|BPF_X);
-+ s_a_to_x = new_stmt(BPF_MISC|BPF_TAX);
-+
-+ s_load = new_stmt(BPF_LD|BPF_IND|size);
-+ s_load->s.k = offset;
-+
-+ sjset_data_frame_1->s.jt = sjset_data_frame_2;
-+ sjset_data_frame_1->s.jf = s_load;
-+
-+ sjset_data_frame_2->s.jt = s_load;
-+ sjset_data_frame_2->s.jf = sjset_qos;
-+
-+ sjset_qos->s.jt = s_ld_a_2;
-+ sjset_qos->s.jf = s_load;
-+
-+ sappend(s, s_load_fc);
-+ sappend(s_load_fc, sjset_data_frame_1);
-+ sappend(sjset_data_frame_1, sjset_data_frame_2);
-+ sappend(sjset_data_frame_2, sjset_qos);
-+ sappend(sjset_qos, s_ld_a_2);
-+ sappend(s_ld_a_2, s_add_a_x);
-+ sappend(s_add_a_x,s_a_to_x);
-+ sappend(s_a_to_x, s_load);
-+
-+ return s;
-+ }
-
- /*
- * Load a value relative to the beginning of the specified header.
-***************
-*** 1367,1372 ****
- s = gen_load_llrel(offset, size);
- break;
-
- case OR_NET:
- s = gen_load_llrel(off_nl + offset, size);
- break;
---- 1504,1525 ----
- s = gen_load_llrel(offset, size);
- break;
-
-+ #ifdef ENABLE_WLAN_FILTERING_PATCH
-+
-+ case OR_LINK_AFTER_WIRELESS_HDR:
-+ if (linktype != DLT_IEEE802_11_RADIO
-+ && linktype != DLT_PPI
-+ && linktype != DLT_IEEE802_11
-+ && linktype != DLT_PRISM_HEADER
-+ && linktype != DLT_IEEE802_11_RADIO_AVS)
-+ {
-+ abort();
-+ return NULL;
-+ }
-+ s = gen_load_ll_after_802_11_rel(offset + 24, size);
-+ break;
-+ #endif /* ENABLE_WLAN_FILTERING_PATCH */
-+
- case OR_NET:
- s = gen_load_llrel(off_nl + offset, size);
- break;
-***************
-*** 2163,2173 ****
- break;
-
- case DLT_PPI:
- case DLT_FDDI:
- case DLT_IEEE802:
-- case DLT_IEEE802_11:
- case DLT_IEEE802_11_RADIO_AVS:
-- case DLT_IEEE802_11_RADIO:
- case DLT_PRISM_HEADER:
- case DLT_ATM_RFC1483:
- case DLT_ATM_CLIP:
---- 2316,2332 ----
- break;
-
- case DLT_PPI:
-+ case DLT_IEEE802_11_RADIO:
-+ case DLT_IEEE802_11:
-+ #ifdef ENABLE_WLAN_FILTERING_PATCH
-+ return gen_802_11_llc_linktype(proto);
-+ /*NOTREACHED*/
-+ break;
-+ #endif /* ENABLE_WLAN_FILTERING_PATCH */
-+
- case DLT_FDDI:
- case DLT_IEEE802:
- case DLT_IEEE802_11_RADIO_AVS:
- case DLT_PRISM_HEADER:
- case DLT_ATM_RFC1483:
- case DLT_ATM_CLIP:
-***************
-*** 2711,2716 ****
- }
- }
-
- static struct block *
- gen_hostop(addr, mask, dir, proto, src_off, dst_off)
- bpf_u_int32 addr;
---- 2870,2982 ----
- }
- }
-
-+ /*
-+ * Generate code to match a particular packet type, for link-layer types
-+ * using 802.2 LLC headers.
-+ *
-+ * This is *NOT* used for Ethernet; "gen_ether_linktype()" is used
-+ * for that - it handles the D/I/X Ethernet vs. 802.3+802.2 issues.
-+ *
-+ * "proto" is an Ethernet type value, if > ETHERMTU, or an LLC SAP
-+ * value, if <= ETHERMTU. We use that to determine whether to
-+ * match the DSAP or both DSAP and LSAP or to check the OUI and
-+ * protocol ID in a SNAP header.
-+ */
-+ static struct block *
-+ gen_802_11_llc_linktype(proto)
-+ int proto;
-+ {
-+ struct block *b_check_data_frame;
-+ struct block *b_check_linktype;
-+
-+ b_check_data_frame = gen_check_802_11_data_frame();
-+
-+ /*
-+ * XXX - generate the code that discards non data frames
-+ */
-+ switch (proto) {
-+
-+ case LLCSAP_IP:
-+ case LLCSAP_ISONS:
-+ case LLCSAP_NETBEUI:
-+ /*
-+ * XXX - should we check both the DSAP and the
-+ * SSAP, like this, or should we check just the
-+ * DSAP, as we do for other types <= ETHERMTU
-+ * (i.e., other SAP values)?
-+ */
-+ b_check_linktype = gen_cmp(OR_LINK_AFTER_WIRELESS_HDR, 0, BPF_H, (bpf_u_int32)
-+ ((proto << 8) | proto));
-+ break;
-+
-+ case LLCSAP_IPX:
-+ /*
-+ * XXX - are there ever SNAP frames for IPX on
-+ * non-Ethernet 802.x networks?
-+ */
-+ b_check_linktype = gen_cmp(OR_LINK_AFTER_WIRELESS_HDR, 0, BPF_B,
-+ (bpf_int32)LLCSAP_IPX);
-+
-+ break;
-+
-+ #if 0
-+ case ETHERTYPE_ATALK:
-+ /*
-+ * 802.2-encapsulated ETHERTYPE_ATALK packets are
-+ * SNAP packets with an organization code of
-+ * 0x080007 (Apple, for Appletalk) and a protocol
-+ * type of ETHERTYPE_ATALK (Appletalk).
-+ *
-+ * XXX - check for an organization code of
-+ * encapsulated Ethernet as well?
-+ */
-+ return gen_snap(0x080007, ETHERTYPE_ATALK, off_linktype);
-+ #endif
-+ default:
-+ /*
-+ * XXX - we don't have to check for IPX 802.3
-+ * here, but should we check for the IPX Ethertype?
-+ */
-+ if (proto <= ETHERMTU) {
-+ /*
-+ * This is an LLC SAP value, so check
-+ * the DSAP.
-+ */
-+ b_check_linktype = gen_cmp(OR_LINK_AFTER_WIRELESS_HDR, 0, BPF_B,
-+ (bpf_int32)proto);
-+ } else {
-+ /*
-+ * This is an Ethernet type; we assume that it's
-+ * unlikely that it'll appear in the right place
-+ * at random, and therefore check only the
-+ * location that would hold the Ethernet type
-+ * in a SNAP frame with an organization code of
-+ * 0x000000 (encapsulated Ethernet).
-+ *
-+ * XXX - if we were to check for the SNAP DSAP and
-+ * LSAP, as per XXX, and were also to check for an
-+ * organization code of 0x000000 (encapsulated
-+ * Ethernet), we'd do
-+ *
-+ * return gen_snap(0x000000, proto,
-+ * off_linktype);
-+ *
-+ * here; for now, we don't, as per the above.
-+ * I don't know whether it's worth the extra CPU
-+ * time to do the right check or not.
-+ */
-+ b_check_linktype = gen_cmp(OR_LINK_AFTER_WIRELESS_HDR, 0+6, BPF_H,
-+ (bpf_int32)proto);
-+ }
-+ }
-+
-+ gen_and(b_check_data_frame, b_check_linktype);
-+ return b_check_linktype;
-+
-+ }
-+
-+
-+
- static struct block *
- gen_hostop(addr, mask, dir, proto, src_off, dst_off)
- bpf_u_int32 addr;
-***************
-*** 2925,2930 ****
- register struct block *b0, *b1, *b2;
- register struct slist *s;
-
- switch (dir) {
- case Q_SRC:
- /*
---- 3191,3207 ----
- register struct block *b0, *b1, *b2;
- register struct slist *s;
-
-+ #ifdef ENABLE_WLAN_FILTERING_PATCH
-+ /*
-+ * TODO GV 20070613
-+ * We need to disable the optimizer because the optimizer is buggy
-+ * and wipes out some LD instructions generated by the below
-+ * code to validate the Frame Control bits
-+ *
-+ */
-+ no_optimize = 1;
-+ #endif /* ENABLE_WLAN_FILTERING_PATCH */
-+
- switch (dir) {
- case Q_SRC:
- /*
-***************
-*** 4713,4718 ****
- #endif
- }
-
-
- /*
- * Generate code that checks whether the packet is a packet for protocol
---- 4990,5021 ----
- #endif
- }
-
-+ static struct block *
-+ gen_check_802_11_data_frame()
-+ {
-+ struct slist *s;
-+ struct block *b0, *b1;
-+ /*
-+ * Now check for a data frame.
-+ * I.e, check "link[0] & 0x08".
-+ */
-+ s = gen_load_a(OR_LINK, 0, BPF_B);
-+ b0 = new_block(JMP(BPF_JSET));
-+ b0->s.k = 0x08;
-+ b0->stmts = s;
-+
-+ s = gen_load_a(OR_LINK, 0, BPF_B);
-+ b1 = new_block(JMP(BPF_JSET));
-+ b1->s.k = 0x04;
-+ b1->stmts = s;
-+ gen_not(b1);
-+
-+
-+ gen_and(b1, b0);
-+
-+ return b0;
-+ }
-+
-
- /*
- * Generate code that checks whether the packet is a packet for protocol
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