mirror of https://github.com/hak5/openwrt.git
Florian Fainelli
parent
c4f83e0b0c
commit
efd3eac055
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@ -9,12 +9,12 @@
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include $(TOPDIR)/rules.mk
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PKG_NAME:=libpcap
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PKG_VERSION:=0.9.4
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PKG_VERSION:=0.9.8
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PKG_RELEASE:=1
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PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
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PKG_SOURCE_URL:=http://www.tcpdump.org/release/
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PKG_MD5SUM:=79025766e8027df154cb1f32de8a7974
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PKG_MD5SUM:=5208f24d0328ee7c20b52c43eaa9aa0e
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include $(INCLUDE_DIR)/package.mk
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@ -26,7 +26,7 @@ define Package/libpcap
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endef
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define Package/libpcap/description
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This package contains a system-independent library for user-level network
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This package contains a system-independent library for user-level network
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packet capture.
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endef
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@ -1,14 +1,12 @@
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Index: libpcap-0.9.4/Makefile.in
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===================================================================
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--- libpcap-0.9.4.orig/Makefile.in 2007-06-04 13:22:03.547316008 +0200
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+++ libpcap-0.9.4/Makefile.in 2007-06-04 13:22:03.614305824 +0200
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--- a/Makefile.in
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+++ b/Makefile.in
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@@ -37,6 +37,15 @@
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srcdir = @srcdir@
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VPATH = @srcdir@
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+# some defines for shared library compilation
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+MAJ=0.9
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+MIN=4
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+MIN=8
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+VERSION=$(MAJ).$(MIN)
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+LIBNAME=pcap
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+LIBRARY=lib$(LIBNAME).a
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@ -18,7 +16,7 @@ Index: libpcap-0.9.4/Makefile.in
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#
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# You shouldn't need to edit anything below.
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#
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@@ -50,6 +59,7 @@
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@@ -52,6 +61,7 @@
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# Standard CFLAGS
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CFLAGS = $(CCOPT) $(INCLS) $(DEFS)
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@ -26,7 +24,7 @@ Index: libpcap-0.9.4/Makefile.in
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INSTALL = @INSTALL@
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INSTALL_PROGRAM = @INSTALL_PROGRAM@
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@@ -70,7 +80,12 @@
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@@ -72,7 +82,12 @@
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.c.o:
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@rm -f $@
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$(CC) $(CFLAGS) -c $(srcdir)/$*.c
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@ -39,7 +37,7 @@ Index: libpcap-0.9.4/Makefile.in
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PSRC = pcap-@V_PCAP@.c
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FSRC = fad-@V_FINDALLDEVS@.c
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SSRC = @SSRC@
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@@ -84,6 +99,7 @@
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@@ -86,6 +101,7 @@
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# We would like to say "OBJ = $(SRC:.c=.o)" but Ultrix's make cannot
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# hack the extra indirection
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OBJ = $(PSRC:.c=.o) $(FSRC:.c=.o) $(CSRC:.c=.o) $(SSRC:.c=.o) $(GENSRC:.c=.o) $(LIBOBJS)
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@ -47,7 +45,7 @@ Index: libpcap-0.9.4/Makefile.in
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HDR = pcap.h pcap-int.h pcap-namedb.h pcap-nit.h pcap-pf.h \
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ethertype.h gencode.h gnuc.h
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GENHDR = \
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@@ -95,15 +111,23 @@
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@@ -97,15 +113,23 @@
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TAGFILES = \
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$(SRC) $(HDR) $(TAGHDR)
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@ -73,7 +71,7 @@ Index: libpcap-0.9.4/Makefile.in
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shared: libpcap.$(DYEXT)
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#
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@@ -129,6 +153,10 @@
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@@ -131,6 +155,10 @@
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scanner.o: scanner.c tokdefs.h
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$(CC) $(CFLAGS) -c scanner.c
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@ -84,7 +82,7 @@ Index: libpcap-0.9.4/Makefile.in
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pcap.o: version.h
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tokdefs.h: grammar.c
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@@ -142,9 +170,16 @@
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@@ -144,9 +172,16 @@
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@rm -f $@
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$(CC) $(CFLAGS) -Dyylval=pcap_lval -c grammar.c
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@ -101,7 +99,7 @@ Index: libpcap-0.9.4/Makefile.in
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snprintf.o: $(srcdir)/missing/snprintf.c
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$(CC) $(CFLAGS) -o $@ -c $(srcdir)/missing/snprintf.c
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@@ -170,10 +205,17 @@
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@@ -172,10 +207,17 @@
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bpf_filter.o: bpf_filter.c
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$(CC) $(CFLAGS) -c bpf_filter.c
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@ -1,8 +1,6 @@
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Index: libpcap-0.9.4/Makefile.in
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===================================================================
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--- libpcap-0.9.4.orig/Makefile.in 2007-06-04 13:22:03.614305824 +0200
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+++ libpcap-0.9.4/Makefile.in 2007-06-04 13:22:03.799277704 +0200
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@@ -117,7 +117,7 @@
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--- a/Makefile.in
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+++ b/Makefile.in
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@@ -119,7 +119,7 @@
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libpcap.a: $(OBJ)
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@rm -f $@
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@ -1,7 +1,5 @@
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Index: libpcap-0.9.4/nametoaddr.c
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===================================================================
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--- libpcap-0.9.4.orig/nametoaddr.c 2007-06-04 13:22:03.499323304 +0200
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+++ libpcap-0.9.4/nametoaddr.c 2007-06-04 13:22:03.986249280 +0200
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--- a/nametoaddr.c
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+++ b/nametoaddr.c
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@@ -410,7 +410,7 @@
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e = ep = (u_char *)malloc(6);
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@ -11,19 +9,17 @@ Index: libpcap-0.9.4/nametoaddr.c
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s += 1;
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d = xdtoi(*s++);
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if (isxdigit((unsigned char)*s)) {
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Index: libpcap-0.9.4/scanner.l
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===================================================================
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--- libpcap-0.9.4.orig/scanner.l 2007-06-04 13:22:03.506322240 +0200
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+++ libpcap-0.9.4/scanner.l 2007-06-04 13:22:03.987249128 +0200
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--- a/scanner.l
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+++ b/scanner.l
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@@ -80,6 +80,7 @@
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N ([0-9]+|(0X|0x)[0-9A-Fa-f]+)
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B ([0-9A-Fa-f][0-9A-Fa-f]?)
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W ([0-9A-Fa-f][0-9A-Fa-f]?[0-9A-Fa-f]?[0-9A-Fa-f]?)
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+X [0-9A-Fa-f]
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%a 16000
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%o 19000
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@@ -306,7 +307,7 @@
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%a 18400
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%o 21500
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@@ -310,7 +311,7 @@
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{N} { yylval.i = stoi((char *)yytext); return NUM; }
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({N}\.{N})|({N}\.{N}\.{N})|({N}\.{N}\.{N}\.{N}) {
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yylval.s = sdup((char *)yytext); return HID; }
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@ -32,7 +28,7 @@ Index: libpcap-0.9.4/scanner.l
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return EID; }
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{V6} {
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#ifdef INET6
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@@ -324,6 +325,7 @@
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@@ -328,6 +329,7 @@
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#endif /*INET6*/
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}
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{B}:+({B}:+)+ { bpf_error("bogus ethernet address %s", yytext); }
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@ -1,10 +1,8 @@
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Copyright (C) 2006 Markus Wigge
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Index: libpcap-0.9.4/Makefile.in
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===================================================================
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--- libpcap-0.9.4.orig/Makefile.in 2007-06-04 13:22:03.799277704 +0200
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+++ libpcap-0.9.4/Makefile.in 2007-06-04 13:22:04.181219640 +0200
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--- a/Makefile.in
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+++ b/Makefile.in
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@@ -53,7 +53,7 @@
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CC = @CC@
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CCOPT = @V_CCOPT@
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@ -12,5 +10,5 @@ Index: libpcap-0.9.4/Makefile.in
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-DEFS = @DEFS@ @V_DEFS@
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+DEFS = -D_BSD_SOURCE @DEFS@ @V_DEFS@
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LIBS = @V_LIBS@
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DAGLIBS = @DAGLIBS@
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DYEXT = @DYEXT@
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@ -0,0 +1,469 @@
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diff -urN libpcap-0.9.8/gencode.c.rej libpcap-0.9.8.new/gencode.c.rej
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--- libpcap-0.9.8/gencode.c.rej 2007-07-10 21:38:15.000000000 +0200
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+++ libpcap-0.9.8.new/gencode.c.rej 1970-01-01 01:00:00.000000000 +0100
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@@ -1,465 +0,0 @@
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-***************
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-*** 24,29 ****
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- "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.221.2.51 2007/06/14 20:54:12 gianluca Exp $ (LBL)";
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- #endif
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-
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- #ifdef HAVE_CONFIG_H
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- #include "config.h"
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- #endif
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---- 24,31 ----
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- "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.221.2.51 2007/06/14 20:54:12 gianluca Exp $ (LBL)";
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- #endif
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-
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-+ #define ENABLE_WLAN_FILTERING_PATCH
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-+
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- #ifdef HAVE_CONFIG_H
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- #include "config.h"
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- #endif
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-***************
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-*** 144,150 ****
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- OR_NET, /* relative to the network-layer header */
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- OR_NET_NOSNAP, /* relative to the network-layer header, with no SNAP header at the link layer */
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- OR_TRAN_IPV4, /* relative to the transport-layer header, with IPv4 network layer */
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-- OR_TRAN_IPV6 /* relative to the transport-layer header, with IPv6 network layer */
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- };
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-
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- /*
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---- 146,153 ----
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- OR_NET, /* relative to the network-layer header */
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- OR_NET_NOSNAP, /* relative to the network-layer header, with no SNAP header at the link layer */
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- OR_TRAN_IPV4, /* relative to the transport-layer header, with IPv4 network layer */
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-+ OR_TRAN_IPV6, /* relative to the transport-layer header, with IPv6 network layer */
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-+ OR_LINK_AFTER_WIRELESS_HDR /* After the 802.11 variable length header */
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- };
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-
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- /*
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-***************
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-*** 199,204 ****
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- static struct block *gen_linktype(int);
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- static struct block *gen_snap(bpf_u_int32, bpf_u_int32, u_int);
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- static struct block *gen_llc_linktype(int);
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- static struct block *gen_hostop(bpf_u_int32, bpf_u_int32, int, int, u_int, u_int);
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- #ifdef INET6
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- static struct block *gen_hostop6(struct in6_addr *, struct in6_addr *, int, int, u_int, u_int);
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---- 202,208 ----
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- static struct block *gen_linktype(int);
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- static struct block *gen_snap(bpf_u_int32, bpf_u_int32, u_int);
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- static struct block *gen_llc_linktype(int);
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-+ static struct block *gen_802_11_llc_linktype(int);
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- static struct block *gen_hostop(bpf_u_int32, bpf_u_int32, int, int, u_int, u_int);
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- #ifdef INET6
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- static struct block *gen_hostop6(struct in6_addr *, struct in6_addr *, int, int, u_int, u_int);
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-***************
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-*** 242,247 ****
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- static struct slist *xfer_to_a(struct arth *);
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- static struct block *gen_mac_multicast(int);
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- static struct block *gen_len(int, int);
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-
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- static struct block *gen_ppi_dlt_check();
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- static struct block *gen_msg_abbrev(int type);
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---- 246,252 ----
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- static struct slist *xfer_to_a(struct arth *);
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- static struct block *gen_mac_multicast(int);
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- static struct block *gen_len(int, int);
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-+ static struct block *gen_check_802_11_data_frame();
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-
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- static struct block *gen_ppi_dlt_check();
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- static struct block *gen_msg_abbrev(int type);
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-***************
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-*** 1345,1350 ****
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- return s;
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- }
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-
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-
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- /*
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- * Load a value relative to the beginning of the specified header.
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---- 1350,1487 ----
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- return s;
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- }
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-
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-+ /*
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-+ * Load a value relative to the beginning of the link-layer header after the 802.11
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-+ * header, i.e. LLC_SNAP.
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-+ * The link-layer header doesn't necessarily begin at the beginning
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-+ * of the packet data; there might be a variable-length prefix containing
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-+ * radio information.
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-+ */
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-+ static struct slist *
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-+ gen_load_ll_after_802_11_rel(offset, size)
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-+ u_int offset, size;
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-+ {
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-+ struct slist *s, *s_load_fc;
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-+ struct slist *sjset_qos;
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-+ struct slist *s_load;
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-+ struct slist *s_ld_a_2;
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-+ struct slist *s_add_a_x;
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-+ struct slist *s_a_to_x;
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-+ struct slist *sjset_data_frame_1;
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-+ struct slist *sjset_data_frame_2;
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-+ struct slist *s_load_x_0;
|
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-+
|
||||
-+ /*
|
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-+ * This code is not compatible with the optimizer, as
|
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-+ * we are generating jmp instructions within a normal
|
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-+ * slist of instructions
|
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-+ *
|
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-+ */
|
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-+ no_optimize = 1;
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-+
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-+ s = gen_llprefixlen();
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-+
|
||||
-+ /*
|
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-+ * If "s" is non-null, it has code to arrange that the X register
|
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-+ * contains the length of the prefix preceding the link-layer
|
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-+ * header.
|
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-+ *
|
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-+ * Otherwise, the length of the prefix preceding the link-layer
|
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-+ * header is "off_ll".
|
||||
-+ */
|
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-+ if (s != NULL) {
|
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-+ /*
|
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-+ * There's a variable-length prefix preceding the
|
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-+ * link-layer header. "s" points to a list of statements
|
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-+ * 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
|
||||
Loading…
Reference in New Issue