int ndo_dlt; /* if != -1, ask libpcap for the DLT it names*/
int ndo_jflag; /* packet time stamp source */
int ndo_pflag; /* don't go promiscuous */
+ int ndo_immediate; /* use immediate mode */
int ndo_Cflag; /* rotate dump files after this many bytes */
int ndo_Cflag_count; /* Keep track of which file number we're writing */
int ndo_Wflag; /* recycle output files after this number of files */
int ndo_WflagChars;
int ndo_Hflag; /* dissect 802.11s draft mesh standard */
+ int ndo_packet_number; /* print a packet number in the beginning of line */
int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */
+ int ndo_tstamp_precision; /* requested time stamp precision */
const char *ndo_dltname;
char *ndo_espsecret;
/* pointer to void function to output stuff */
void (*ndo_default_print)(netdissect_options *,
register const u_char *bp, register u_int length);
+
+ /* pointer to function to print ^T output */
void (*ndo_info)(netdissect_options *, int verbose);
+ /* pointer to function to do regular output */
int (*ndo_printf)(netdissect_options *,
const char *fmt, ...)
#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
__attribute__ ((format (printf, 2, 3)))
#endif
;
+ /* pointer to function to output errors */
void (*ndo_error)(netdissect_options *,
const char *fmt, ...)
#ifdef __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS
__attribute__ ((format (printf, 2, 3)))
#endif /* __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS */
;
+ /* pointer to function to output warnings */
void (*ndo_warning)(netdissect_options *,
const char *fmt, ...)
#ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
* Maximum snapshot length. This should be enough to capture the full
* packet on most network interfaces.
*
- * XXX - could it be larger? If so, should it? Some applications might
- * use the snapshot length in a savefile header to control the size of
- * the buffer they allocate, so a size of, say, 2^31-1 might not work
- * well.
+ *
+ * Somewhat arbitrary, but chosen to be:
+ *
+ * 1) big enough for maximum-size Linux loopback packets (65549)
+ * and some USB packets captured with USBPcap:
+ *
+ * http://desowin.org/usbpcap/
+ *
+ * (> 131072, < 262144)
+ *
+ * and
+ *
+ * 2) small enough not to cause attempts to allocate huge amounts of
+ * memory; some applications might use the snapshot length in a
+ * savefile header to control the size of the buffer they allocate,
+ * so a size of, say, 2^31-1 might not work well.
+ *
+ * XXX - does it need to be bigger still?
*/
-#define MAXIMUM_SNAPLEN 65535
+#define MAXIMUM_SNAPLEN 262144
/*
* The default snapshot length is the maximum.
* "l" isn't so large that "ndo->ndo_snapend - (l)" underflows.
*
* The check is for <= rather than < because "l" might be 0.
+ *
+ * We cast the pointers to uintptr_t to make sure that the compiler
+ * doesn't optimize away any of these tests (which it is allowed to
+ * do, as adding an integer to, or subtracting an integer from, a
+ * pointer assumes that the pointer is a pointer to an element of an
+ * array and that the result of the addition or subtraction yields a
+ * pointer to another member of the array, so that, for example, if
+ * you subtract a positive integer from a pointer, the result is
+ * guaranteed to be less than the original pointer value). See
+ *
+ * http://www.kb.cert.org/vuls/id/162289
*/
-#define ND_TTEST2(var, l) (ndo->ndo_snapend - (l) <= ndo->ndo_snapend && \
- (const u_char *)&(var) <= ndo->ndo_snapend - (l))
+#define ND_TTEST2(var, l) \
+ ((l) >= 0 && \
+ ((uintptr_t)ndo->ndo_snapend - (l) <= (uintptr_t)ndo->ndo_snapend && \
+ (uintptr_t)&(var) <= (uintptr_t)ndo->ndo_snapend - (l)))
/* True if "var" was captured */
#define ND_TTEST(var) ND_TTEST2(var, sizeof(var))
extern void ts_print(netdissect_options *, const struct timeval *);
extern void relts_print(netdissect_options *, int);
-extern int fn_print(const u_char *, const u_char *);
-extern int fn_printn(const u_char *, u_int, const u_char *);
+extern int fn_print(netdissect_options *, const u_char *, 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 *);
extern const char *tok2str(const struct tok *, const char *, int);
+/*
+ * Flags for txtproto_print().
+ */
+#define RESP_CODE_SECOND_TOKEN 0x00000001 /* response code is second token in response line */
+
+extern void txtproto_print(netdissect_options *, const u_char *, u_int,
+ const char *, const char **, u_int);
+
#if 0
extern char *read_infile(netdissect_options *, char *);
extern char *copy_argv(netdissect_options *, char **);
#include <pcap.h>
-typedef u_int (*if_ndo_printer)(struct netdissect_options *ndo,
+extern char *q922_string(netdissect_options *ndo, const u_char *, u_int);
+
+typedef u_int (*if_printer)(struct netdissect_options *ndo,
const struct pcap_pkthdr *, const u_char *);
-typedef u_int (*if_printer)(const struct pcap_pkthdr *, const u_char *);
-extern if_ndo_printer lookup_ndo_printer(int);
extern if_printer lookup_printer(int);
extern void eap_print(netdissect_options *,const u_char *, u_int);
extern void loopback_print(netdissect_options *, const u_char *, const u_int);
extern void carp_print(netdissect_options *, const u_char *, u_int, int);
-extern void ether_print(netdissect_options *,
- const u_char *, u_int, u_int,
- void (*)(netdissect_options *, const u_char *),
- const u_char *);
+extern u_int ether_print(netdissect_options *,
+ const u_char *, u_int, u_int,
+ void (*)(netdissect_options *, const u_char *),
+ const u_char *);
extern u_int ether_if_print(netdissect_options *,
const struct pcap_pkthdr *,const u_char *);
extern u_int token_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void vqp_print(netdissect_options *, register const u_char *, register u_int);
extern void zephyr_print(netdissect_options *, const u_char *, int);
-extern void fddi_print(netdissect_options *, const u_char *, u_int, u_int);
+extern u_int fddi_print(netdissect_options *, const u_char *, u_int, u_int);
extern u_int fddi_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void mpcp_print(netdissect_options *, const u_char *, u_int);
extern void rpki_rtr_print(netdissect_options *, const u_char *, u_int);
extern u_int sll_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void dccp_print(netdissect_options *, const u_char *, const u_char *, u_int);
-extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const u_char *, const u_char *, u_short *);
-extern int snap_print(netdissect_options *, const u_char *, u_int, u_int, u_int);
+extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const u_char *, const u_char *);
+extern int snap_print(netdissect_options *, const u_char *, u_int, u_int,
+ const u_char *, const u_char *, u_int);
extern void eigrp_print(netdissect_options *, const u_char *, u_int);
extern void stp_print(netdissect_options *, const u_char *, u_int);
extern void l2tp_print(netdissect_options *, const u_char *, u_int);
extern void vtp_print(netdissect_options *, const u_char *, u_int);
extern int mptcp_print(netdissect_options *, const u_char *, u_int, u_char);
extern void ntp_print(netdissect_options *, const u_char *, u_int);
-extern void cnfp_print(netdissect_options *, const u_char *, const u_char *);
+extern void cnfp_print(netdissect_options *, const u_char *);
extern void dvmrp_print(netdissect_options *, const u_char *, u_int);
extern void egp_print(netdissect_options *, const u_char *, u_int);
extern u_int enc_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void decnet_print(netdissect_options *, const u_char *, u_int, u_int);
extern void tcp_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
extern void ospf_print(netdissect_options *, const u_char *, u_int, const u_char *);
-extern int ospf_print_te_lsa(netdissect_options *, const u_int8_t *, u_int);
-extern int ospf_print_grace_lsa(netdissect_options *, const u_int8_t *, u_int);
+extern int ospf_print_te_lsa(netdissect_options *, const uint8_t *, u_int);
+extern int ospf_print_grace_lsa(netdissect_options *, const uint8_t *, u_int);
extern u_int ppp_print(netdissect_options *, register const u_char *, u_int);
extern u_int ppp_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int ppp_hdlc_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern void lldp_print(netdissect_options *, const u_char *, u_int);
extern void rsvp_print(netdissect_options *, const u_char *, u_int);
extern void timed_print(netdissect_options *, const u_char *);
+extern void m3ua_print(netdissect_options *, const u_char *, const u_int);
+extern void aoe_print(netdissect_options *, const u_char *, const u_int);
+extern void ftp_print(netdissect_options *, const u_char *, u_int);
+extern void http_print(netdissect_options *, const u_char *, u_int);
+extern void rtsp_print(netdissect_options *, const u_char *, u_int);
+extern void smtp_print(netdissect_options *, const u_char *, u_int);
+extern void geneve_print(netdissect_options *, const u_char *, u_int);
/* stuff that has not yet been rototiled */
extern void ascii_print(netdissect_options *,u_int);
extern void default_print(netdissect_options *,const u_char *, u_int);
extern char *smb_errstr(netdissect_options *,int, int);
-extern const char *nt_errstr(netdissect_options *, u_int32_t);
+extern const char *nt_errstr(netdissect_options *, uint32_t);
#endif
extern u_int ipnet_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
extern u_int ieee802_11_radio_avs_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
extern u_int prism_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
-#ifdef INET6
extern void ip6_print(netdissect_options *,const u_char *, u_int);
+#ifdef INET6
extern int frag6_print(netdissect_options *, const u_char *, const u_char *);
extern int rt6_print(netdissect_options *, const u_char *, const u_char *);
extern int hbhopt_print(netdissect_options *, const u_char *);
#if 0
struct cksum_vec {
- const u_int8_t *ptr;
+ const uint8_t *ptr;
int len;
};
-extern u_int16_t in_cksum(const struct cksum_vec *, int);
-extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t);
+extern uint16_t in_cksum(const struct cksum_vec *, int);
+extern uint16_t in_cksum_shouldbe(uint16_t, uint16_t);
#endif
-extern int nextproto4_cksum(netdissect_options *ndo, const struct ip *, const u_int8_t *, u_int, u_int, u_int);
+extern int nextproto4_cksum(netdissect_options *ndo, const struct ip *, const uint8_t *, u_int, u_int, u_int);
extern int decode_prefix4(netdissect_options *ndo, const u_char *, u_int, char *, u_int);
#ifdef INET6
extern int decode_prefix6(netdissect_options *ndo, const u_char *, u_int, char *, u_int);
extern void geonet_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *geo_pck, u_int len);
extern void calm_fast_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *calm_pck, u_int len);
+extern netdissect_options *gndo;
+
#endif /* netdissect_h */
projects / tcpdump / blobdiff