From 46da4bc6fc908c47eab980f5972f4a31fa321726 Mon Sep 17 00:00:00 2001
From: Bill Fenner <fenner@FreeBSD.org>
Date: Tue, 31 Jul 2001 23:27:06 +0000
Subject: [PATCH] Update our bpf.h with tcpdump.org's new DLT_ types. Use our
 bpf.h instead of tcpdump.org's to build libpcap.

---
 lib/libpcap/Makefile |  2 +-
 sys/net/bpf.h        | 84 ++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 83 insertions(+), 3 deletions(-)

diff --git a/lib/libpcap/Makefile b/lib/libpcap/Makefile
index f18f899623c8..a2c9be6e7917 100644
--- a/lib/libpcap/Makefile
+++ b/lib/libpcap/Makefile
@@ -21,7 +21,7 @@ SHLIB_MINOR=5
 # Magic to grab sources out of src/contrib
 #
 PCAP_DISTDIR?=${.CURDIR}/../../contrib/libpcap
-CFLAGS+=-I${PCAP_DISTDIR} -I${PCAP_DISTDIR}/lbl -I${PCAP_DISTDIR}/bpf
+CFLAGS+=-I${PCAP_DISTDIR}
 .PATH:	${PCAP_DISTDIR}
 .PATH:	${PCAP_DISTDIR}/bpf/net
 
diff --git a/sys/net/bpf.h b/sys/net/bpf.h
index a173b0a8594f..ed3ebf45a31d 100644
--- a/sys/net/bpf.h
+++ b/sys/net/bpf.h
@@ -152,8 +152,88 @@ struct bpf_hdr {
 #define DLT_FDDI	10	/* FDDI */
 #define DLT_ATM_RFC1483	11	/* LLC/SNAP encapsulated atm */
 #define DLT_RAW		12	/* raw IP */
-#define DLT_SLIP_BSDOS	13	/* BSD/OS Serial Line IP */
-#define DLT_PPP_BSDOS	14	/* BSD/OS Point-to-point Protocol */
+
+/*
+ * These are values from BSD/OS's "bpf.h".
+ * These are not the same as the values from the traditional libpcap
+ * "bpf.h"; however, these values shouldn't be generated by any
+ * OS other than BSD/OS, so the correct values to use here are the
+ * BSD/OS values.
+ *
+ * Platforms that have already assigned these values to other
+ * DLT_ codes, however, should give these codes the values
+ * from that platform, so that programs that use these codes will
+ * continue to compile - even though they won't correctly read
+ * files of these types.
+ */
+#define DLT_SLIP_BSDOS	15	/* BSD/OS Serial Line IP */
+#define DLT_PPP_BSDOS	16	/* BSD/OS Point-to-point Protocol */
+
+#define DLT_ATM_CLIP	19	/* Linux Classical-IP over ATM */
+
+/*
+ * This value is defined by NetBSD; other platforms should refrain from
+ * using it for other purposes, so that NetBSD savefiles with a link
+ * type of 50 can be read as this type on all platforms.
+ */
+#define DLT_PPP_SERIAL	50	/* PPP over serial with HDLC encapsulation */
+
+/*
+ * This value was defined by libpcap 0.5; platforms that have defined
+ * it with a different value should define it here with that value -
+ * a link type of 104 in a save file will be mapped to DLT_C_HDLC,
+ * whatever value that happens to be, so programs will correctly
+ * handle files with that link type regardless of the value of
+ * DLT_C_HDLC.
+ *
+ * The name DLT_C_HDLC was used by BSD/OS; we use that name for source
+ * compatibility with programs written for BSD/OS.
+ *
+ * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well,
+ * for source compatibility with programs written for libpcap 0.5.
+ */
+#define DLT_C_HDLC	104	/* Cisco HDLC */
+#define DLT_CHDLC	DLT_C_HDLC
+
+/*
+ * Reserved for future use.
+ * Do not pick other numerical value for these unless you have also
+ * picked up the tcpdump.org top-of-CVS-tree version of "savefile.c",
+ * which will arrange that capture files for these DLT_ types have
+ * the same "network" value on all platforms, regardless of what
+ * value is chosen for their DLT_ type (thus allowing captures made
+ * on one platform to be read on other platforms, even if the two
+ * platforms don't use the same numerical values for all DLT_ types).
+ */
+#define DLT_IEEE802_11	105	/* IEEE 802.11 wireless */
+
+/*
+ * Values between 106 and 107 are used in capture file headers as
+ * link-layer types corresponding to DLT_ types that might differ
+ * between platforms; don't use those values for new DLT_ new types.
+ */
+
+/*
+ * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except
+ * that the AF_ type in the link-layer header is in network byte order.
+ *
+ * OpenBSD defines it as 12, but that collides with DLT_RAW, so we
+ * define it as 108 here.  If OpenBSD picks up this file, it should
+ * define DLT_LOOP as 12 in its version, as per the comment above -
+ * and should not use 108 for any purpose.
+ */
+#define DLT_LOOP	108
+
+/*
+ * Values between 109 and 112 are used in capture file headers as
+ * link-layer types corresponding to DLT_ types that might differ
+ * between platforms; don't use those values for new DLT_ new types.
+ */
+
+/*
+ * This is for Linux cooked sockets.
+ */
+#define DLT_LINUX_SLL	113
 
 /*
  * The instruction encodings.