X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/0fb8e69adbc9711a7fdbebf95b9f700fb52d2dd0..f152c1268f28fc84d15d364b742f500e12374b33:/netdissect.h

diff --git a/netdissect.h b/netdissect.h
index 0e9c06a6..ed1a6842 100644
--- a/netdissect.h
+++ b/netdissect.h
@@ -34,14 +34,52 @@
 #define __attribute__(x)
 #endif
 
+/*
+ * Data types corresponding to multi-byte integral values within data
+ * structures.  These are defined as arrays of octets, so that they're
+ * not aligned on their "natural" boundaries, and so that you *must*
+ * use the EXTRACT_ macros to extract them (which you should be doing
+ * *anyway*, so as not to assume a particular byte order or alignment
+ * in your code).
+ */
+typedef unsigned char nd_uint16_t[2];
+typedef unsigned char nd_uint24_t[3];
+typedef unsigned char nd_uint32_t[4];
+typedef unsigned char nd_uint40_t[5];
+typedef unsigned char nd_uint48_t[6];
+typedef unsigned char nd_uint56_t[7];
+typedef unsigned char nd_uint64_t[8];
+
+/*
+ * Use this for IPv4 addresses.  It's defined as an array of octets, so
+ * that it's not aligned on its "natural" boundary, and it's defined as
+ * a structure in the hopes that this makes it harder to naively use
+ * EXTRACT_32BITS() to extract the value - in many cases you just want
+ * to use UNALIGNED_MEMCPY() to copy its value, so that it remains in
+ * network byte order.
+ */
+typedef struct {
+	unsigned char bytes[4];
+} nd_ipv4;
+
+/*
+ * Data types corresponding to single-byte integral values, for
+ * completeness.
+ */
+typedef unsigned char nd_uint8_t;
+typedef signed char nd_int8_t;
+
 /* snprintf et al */
 
 #include <stdarg.h>
 #include <pcap.h>
 
 #include "ip.h" /* struct ip for nextproto4_cksum() */
+#include "ip6.h" /* struct ip6 for nextproto6_cksum() */
 
 extern int32_t thiszone;	/* seconds offset from gmt to local time */
+/* invalid string to print '(invalid)' for malformed or corrupted packets */
+extern const char istr[];
 
 #if !defined(HAVE_SNPRINTF)
 int snprintf (char *str, size_t sz, const char *format, ...)
@@ -87,6 +125,20 @@ extern const char *tok2str(const struct tok *, const char *, u_int);
 extern char *bittok2str(const struct tok *, const char *, u_int);
 extern char *bittok2str_nosep(const struct tok *, const char *, u_int);
 
+/* Initialize netdissect. */
+extern int nd_init(char *, size_t);
+/* Clean up netdissect. */
+extern void nd_cleanup(void);
+
+/* Do we have libsmi support? */
+extern int nd_have_smi_support(void);
+/* Load an SMI module. */
+extern int nd_load_smi_module(const char *, char *, size_t);
+/* Flag indicating whether an SMI module has been loaded. */
+extern int nd_smi_module_loaded;
+/* Version number of the SMI library, or NULL if we don't have libsmi support. */
+extern const char *nd_smi_version_string(void);
+
 typedef struct netdissect_options netdissect_options;
 
 #define IF_PRINTER_ARGS (netdissect_options *, const struct pcap_pkthdr *, const u_char *)
@@ -101,7 +153,6 @@ struct netdissect_options {
   int ndo_nflag;		/* leave addresses as numbers */
   int ndo_Nflag;		/* remove domains from printed host names */
   int ndo_qflag;		/* quick (shorter) output */
-  int ndo_mflag;		/* use the libsmi to translate OIDs */
   int ndo_Sflag;		/* print raw TCP sequence numbers */
   int ndo_tflag;		/* print packet arrival time */
   int ndo_uflag;		/* Print undecoded NFS handles */
@@ -180,6 +231,7 @@ struct netdissect_options {
 #define PT_PGM		14	/* [UDP-encapsulated] Pragmatic General Multicast */
 #define PT_PGM_ZMTP1	15	/* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */
 #define PT_LMP		16	/* Link Management Protocol */
+#define PT_RESP		17	/* RESP */
 
 #ifndef min
 #define min(a,b) ((a)>(b)?(b):(a))
@@ -188,6 +240,9 @@ struct netdissect_options {
 #define max(a,b) ((b)>(a)?(b):(a))
 #endif
 
+/* For source or destination ports tests (UDP, TCP, ...) */
+#define IS_SRC_OR_DST_PORT(p) (sport == (p) || dport == (p))
+
 /*
  * Maximum snapshot length.  This should be enough to capture the full
  * packet on most network interfaces.
@@ -273,9 +328,12 @@ struct netdissect_options {
 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
 
 extern void ts_print(netdissect_options *, const struct timeval *);
-extern void relts_print(netdissect_options *, int);
+extern void signed_relts_print(netdissect_options *, int32_t);
+extern void unsigned_relts_print(netdissect_options *, uint32_t);
 
+extern void fn_print_char(netdissect_options *, u_char);
 extern int fn_print(netdissect_options *, const u_char *, const u_char *);
+extern u_int fn_printztn(netdissect_options *ndo, const u_char *, u_int, const u_char *);
 extern int fn_printn(netdissect_options *, const u_char *, u_int, const u_char *);
 extern int fn_printzp(netdissect_options *, const u_char *, u_int, const u_char *);
 
@@ -393,6 +451,21 @@ extern u_int token_if_print IF_PRINTER_ARGS;
 extern u_int usb_linux_48_byte_print IF_PRINTER_ARGS;
 extern u_int usb_linux_64_byte_print IF_PRINTER_ARGS;
 
+/*
+ * Structure passed to some printers to allow them to print
+ * link-layer address information if ndo_eflag isn't set
+ * (because they are for protocols that don't have their
+ * own addresses, so that we'd want to report link-layer
+ * address information).
+ *
+ * This contains a pointer to an address and a pointer to a routine
+ * to which we pass that pointer in order to get a string.
+ */
+struct lladdr_info {
+	const char *(*addr_string)(netdissect_options *, const u_char *);
+	const u_char *addr;
+};
+
 /* The printer routines. */
 
 extern void aarp_print(netdissect_options *, const u_char *, u_int);
@@ -410,7 +483,7 @@ extern void bfd_print(netdissect_options *, const u_char *, u_int, u_int);
 extern void bgp_print(netdissect_options *, const u_char *, int);
 extern char *bgp_vpn_rd_print (netdissect_options *, const u_char *);
 extern void bootp_print(netdissect_options *, const u_char *, u_int);
-extern void calm_fast_print(netdissect_options *, const u_char *, const u_char *, u_int);
+extern void calm_fast_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *);
 extern void carp_print(netdissect_options *, const u_char *, u_int, int);
 extern void cdp_print(netdissect_options *, const u_char *, u_int, u_int);
 extern void cfm_print(netdissect_options *, const u_char *, u_int);
@@ -428,20 +501,21 @@ extern void egp_print(netdissect_options *, const u_char *, u_int);
 extern void eigrp_print(netdissect_options *, const u_char *, u_int);
 extern int esp_print(netdissect_options *, const u_char *, const int, const u_char *, int *, int *);
 extern u_int ether_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), const u_char *);
-extern int ethertype_print(netdissect_options *, u_short, const u_char *, u_int, u_int);
+extern int ethertype_print(netdissect_options *, u_short, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *);
 extern u_int fddi_print(netdissect_options *, const u_char *, u_int, u_int);
 extern void forces_print(netdissect_options *, const u_char *, u_int);
 extern u_int fr_print(netdissect_options *, register const u_char *, u_int);
 extern int frag6_print(netdissect_options *, const u_char *, const u_char *);
 extern void ftp_print(netdissect_options *, const u_char *, u_int);
 extern void geneve_print(netdissect_options *, const u_char *, u_int);
-extern void geonet_print(netdissect_options *, const u_char *, const u_char *, u_int);
+extern void geonet_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *);
 extern void gre_print(netdissect_options *, const u_char *, u_int);
 extern int hbhopt_print(netdissect_options *, const u_char *);
 extern void hex_and_ascii_print(netdissect_options *, const char *, const u_char *, u_int);
 extern void hex_and_ascii_print_with_offset(netdissect_options *, const char *, const u_char *, u_int, u_int);
 extern void hex_print(netdissect_options *, const char *ident, const u_char *cp, u_int);
 extern void hex_print_with_offset(netdissect_options *, const char *ident, const u_char *cp, u_int, u_int);
+extern void hncp_print(netdissect_options *, const u_char *, u_int);
 extern void hsrp_print(netdissect_options *, const u_char *, u_int);
 extern void http_print(netdissect_options *, const u_char *, u_int);
 extern void icmp6_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
@@ -452,7 +526,7 @@ extern void ip6_print(netdissect_options *, const u_char *, u_int);
 extern void ipN_print(netdissect_options *, const u_char *, u_int);
 extern void ip_print(netdissect_options *, const u_char *, u_int);
 extern void ip_print_inner(netdissect_options *, const u_char *, u_int, u_int nh, const u_char *);
-extern int ipcomp_print(netdissect_options *, register const u_char *, int *);
+extern void ipcomp_print(netdissect_options *, register const u_char *);
 extern void ipx_netbios_print(netdissect_options *, const u_char *, u_int);
 extern void ipx_print(netdissect_options *, const u_char *, u_int);
 extern void isakmp_print(netdissect_options *, const u_char *, u_int, const u_char *);
@@ -462,8 +536,9 @@ extern void krb_print(netdissect_options *, const u_char *);
 extern void l2tp_print(netdissect_options *, const u_char *, u_int);
 extern void lane_print(netdissect_options *, const u_char *, u_int, u_int);
 extern void ldp_print(netdissect_options *, const u_char *, u_int);
+extern void lisp_print(netdissect_options *, const u_char *, u_int);
 extern u_int llap_print(netdissect_options *, const u_char *, u_int);
-extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const u_char *, const u_char *);
+extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *);
 extern void lldp_print(netdissect_options *, const u_char *, u_int);
 extern void lmp_print(netdissect_options *, const u_char *, u_int);
 extern void loopback_print(netdissect_options *, const u_char *, const u_int);
@@ -490,8 +565,9 @@ extern void nfsreply_print_noaddr(netdissect_options *, const u_char *, u_int, c
 extern void nfsreq_print_noaddr(netdissect_options *, const u_char *, u_int, const u_char *);
 extern const u_char * ns_nprint (netdissect_options *, register const u_char *, register const u_char *);
 extern void ns_print(netdissect_options *, const u_char *, u_int, int);
+extern void nsh_print(netdissect_options *ndo, const u_char *bp, u_int len);
 extern void ntp_print(netdissect_options *, const u_char *, u_int);
-extern int oam_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void oam_print(netdissect_options *, const u_char *, u_int, u_int);
 extern void olsr_print(netdissect_options *, const u_char *, u_int, int);
 extern void openflow_print(netdissect_options *, const u_char *, const u_int);
 extern void ospf6_print(netdissect_options *, const u_char *, u_int);
@@ -509,10 +585,11 @@ extern int print_unknown_data(netdissect_options *, const u_char *, const char *
 extern char *q922_string(netdissect_options *, const u_char *, u_int);
 extern void q933_print(netdissect_options *, const u_char *, u_int);
 extern void radius_print(netdissect_options *, const u_char *, u_int);
+extern void resp_print(netdissect_options *, const u_char *, u_int);
 extern void rip_print(netdissect_options *, const u_char *, u_int);
 extern void ripng_print(netdissect_options *, const u_char *, unsigned int);
 extern void rpki_rtr_print(netdissect_options *, const u_char *, u_int);
-extern void rrcp_print(netdissect_options *, const u_char *, u_int);
+extern void rrcp_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *, const struct lladdr_info *);
 extern void rsvp_print(netdissect_options *, const u_char *, u_int);
 extern int rt6_print(netdissect_options *, const u_char *, const u_char *);
 extern void rtsp_print(netdissect_options *, const u_char *, u_int);
@@ -524,7 +601,7 @@ extern void slow_print(netdissect_options *, const u_char *, u_int);
 extern void smb_print_data(netdissect_options *, const unsigned char *, int);
 extern void smb_tcp_print(netdissect_options *, const u_char *, int);
 extern void smtp_print(netdissect_options *, const u_char *, u_int);
-extern int snap_print(netdissect_options *, const u_char *, u_int, u_int, const u_char *, const u_char *, u_int);
+extern int snap_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *, u_int);
 extern void snmp_print(netdissect_options *, const u_char *, u_int);
 extern void stp_print(netdissect_options *, const u_char *, u_int);
 extern void sunrpcrequest_print(netdissect_options *, const u_char *, u_int, const u_char *);
@@ -541,6 +618,7 @@ extern int vjc_print(netdissect_options *, register const char *, u_short);
 extern void vqp_print(netdissect_options *, register const u_char *, register u_int);
 extern void vrrp_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
 extern void vtp_print(netdissect_options *, const u_char *, u_int);
+extern void vxlan_gpe_print(netdissect_options *ndo, const u_char *bp, u_int len);
 extern void vxlan_print(netdissect_options *, const u_char *, u_int);
 extern void wb_print(netdissect_options *, const void *, u_int);
 extern void zephyr_print(netdissect_options *, const u_char *, int);
@@ -561,6 +639,9 @@ extern uint16_t in_cksum_shouldbe(uint16_t, uint16_t);
 
 extern int nextproto4_cksum(netdissect_options *, const struct ip *, const uint8_t *, u_int, u_int, u_int);
 
+/* in print-ip6.c */
+extern int nextproto6_cksum(netdissect_options *, const struct ip6_hdr *, const uint8_t *, u_int, u_int, u_int);
+
 /* Utilities */
 extern int mask2plen(uint32_t);
 extern int mask62plen(const u_char *);