As with libpcap, get rid of autom4te.cache when doing "make distclean".

[tcpdump] / interface.h

diff --git a/interface.h b/interface.h
index 852bfb7fb4f1a6144a6dc24373826de284c2e4b8..b8acc7d9b5cb78459835d6e09aa9e2f921c324f7 100644 (file)
--- a/interface.h
+++ b/interface.h
@@ -32,6 +32,39 @@
 #define __attribute__(x)
 #endif
 
+/*
+ * Used to declare a structure unaligned, so that the C compiler,
+ * if necessary, generates code that doesn't assume alignment.
+ * This is required because there is no guarantee that the packet
+ * data we get from libpcap/WinPcap is properly aligned.
+ *
+ * This assumes that, for all compilers that support __attribute__:
+ *
+ *     1) they support __attribute__((packed));
+ *
+ *     2) for all instruction set architectures requiring strict
+ *        alignment, declaring a structure with that attribute
+ *        causes the compiler to generate code that handles
+ *        misaligned 2-byte, 4-byte, and 8-byte integral
+ *        quantities.
+ *
+ * It does not (yet) handle compilers where you can get the compiler
+ * to generate code of that sort by some other means.
+ *
+ * This is required in order to, for example, keep the compiler from
+ * generating, for
+ *
+ *     if (bp->bp_htype == 1 && bp->bp_hlen == 6 && bp->bp_op == BOOTPREQUEST) {
+ *
+ * in print-bootp.c, code that loads the first 4-byte word of a
+ * "struct bootp", masking out the bp_hops field, and comparing the result
+ * against 0x01010600.
+ *
+ * Note: this also requires that padding be put into the structure,
+ * at least for compilers where it's implemented as __attribute__((packed)).
+ */
+#define UNALIGNED      __attribute__((packed))
+
 /* snprintf et al */
 
 #include <stdarg.h>
@@ -82,11 +115,6 @@ extern char *strsep(char **, const char *);
 #define max(a,b) ((b)>(a)?(b):(a))
 #endif
 
-#ifndef BIG_ENDIAN
-#define BIG_ENDIAN 4321
-#define LITTLE_ENDIAN 1234
-#endif
-
 #define ESRC(ep) ((ep)->ether_shost)
 #define EDST(ep) ((ep)->ether_dhost)
 
@@ -171,10 +199,10 @@ extern void hex_and_ascii_print(const char *, const u_char *, u_int);
 extern void hex_print_with_offset(const char *, const u_char *, u_int, u_int);
 extern void hex_print(const char *, const u_char *, u_int);
 extern void telnet_print(const u_char *, u_int);
-extern int ether_encap_print(u_short, const u_char *, u_int, u_int, u_short *);
+extern int ethertype_print(u_short, const u_char *, u_int, u_int);
 extern int llc_print(const u_char *, u_int, u_int, const u_char *,
        const u_char *, u_short *);
-extern int snap_print(const u_char *, u_int, u_int, u_short *, u_int);
+extern int snap_print(const u_char *, u_int, u_int, u_int);
 extern void aarp_print(const u_char *, u_int);
 extern void aodv_print(const u_char *, u_int, int);
 extern void atalk_print(const u_char *, u_int);
@@ -194,7 +222,8 @@ extern u_int enc_if_print(const struct pcap_pkthdr *, const u_char *);
 extern u_int pflog_if_print(const struct pcap_pkthdr *, const u_char *);
 extern u_int arcnet_if_print(const struct pcap_pkthdr *, const u_char *);
 extern u_int arcnet_linux_if_print(const struct pcap_pkthdr *, const u_char *);
-extern void ether_print(const u_char *, u_int, u_int);
+extern void ether_print(const u_char *, u_int, u_int,
+    void (*)(const u_char *), const u_char *);
 extern u_int ether_if_print(const struct pcap_pkthdr *, const u_char *);
 extern u_int token_print(const u_char *, u_int, u_int);
 extern u_int token_if_print(const struct pcap_pkthdr *, const u_char *);
@@ -314,6 +343,7 @@ extern void lwres_print(const u_char *, u_int);
 extern void pptp_print(const u_char *);
 extern void dccp_print(const u_char *, const u_char *, u_int);
 extern void sctp_print(const u_char *, const u_char *, u_int);
+extern void forces_print(const u_char *, u_int);
 extern void mpls_print(const u_char *, u_int);
 extern void mpls_lsp_ping_print(const u_char *, u_int);
 extern void zephyr_print(const u_char *, int);
@@ -322,8 +352,8 @@ extern void bfd_print(const u_char *, u_int, u_int);
 extern void sip_print(const u_char *, u_int);
 extern void syslog_print(const u_char *, u_int);
 extern u_int bt_if_print(const struct pcap_pkthdr *, const u_char *);
-extern u_int usb_linux_print(const struct pcap_pkthdr *, const u_char *);
-extern u_int ipnet_if_print(const struct pcap_pkthdr *, const u_char *);
+extern u_int usb_linux_48_byte_print(const struct pcap_pkthdr *, const u_char *);
+extern u_int usb_linux_64_byte_print(const struct pcap_pkthdr *, const u_char *);
 
 #ifdef INET6
 extern void ip6_print(const u_char *, u_int);
@@ -359,6 +389,7 @@ extern netdissect_options *gndo;
 #define bflag gndo->ndo_bflag 
 #define eflag gndo->ndo_eflag 
 #define fflag gndo->ndo_fflag 
+#define jflag gndo->ndo_jflag
 #define Kflag gndo->ndo_Kflag 
 #define nflag gndo->ndo_nflag 
 #define Nflag gndo->ndo_Nflag 
@@ -387,6 +418,7 @@ extern netdissect_options *gndo;
 #define Cflag_count gndo->ndo_Cflag_count
 #define Gflag_count gndo->ndo_Gflag_count
 #define Gflag_time gndo->ndo_Gflag_time 
+#define hflag gndo->ndo_hflag
 #define snaplen     gndo->ndo_snaplen
 #define snapend     gndo->ndo_snapend