Do the dump file Capsicum stuff in a common routine.

[tcpdump] / netdissect.h

diff --git a/netdissect.h b/netdissect.h
index 115d1c4ad408c8188c4745a0447ca05eeea602d6..4580e73dd26fda80b911028d96d97f01637a0d93 100644 (file)
--- a/netdissect.h
+++ b/netdissect.h
@@ -115,6 +115,7 @@ struct netdissect_options {
   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_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_Cflag;                /* rotate dump files after this many bytes */
   int ndo_Cflag_count;      /* Keep track of which file number we're writing */


@@ -124,7 +125,9 @@ struct netdissect_options {
   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_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_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;
   const char *ndo_dltname;
 
   char *ndo_espsecret;


@@ -154,14 +157,18 @@ struct netdissect_options {
   /* pointer to void function to output stuff */
   void (*ndo_default_print)(netdissect_options *,
                      register const u_char *bp, register u_int length);
   /* 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);
 
   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
                     ;
   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
   void (*ndo_error)(netdissect_options *,
                    const char *fmt, ...)
 #ifdef __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS


@@ -171,6 +178,7 @@ struct netdissect_options {
                     __attribute__ ((format (printf, 2, 3)))
 #endif /* __ATTRIBUTE___FORMAT_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
   void (*ndo_warning)(netdissect_options *,
                      const char *fmt, ...)
 #ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS


@@ -207,12 +215,26 @@ struct netdissect_options {
  * Maximum snapshot length.  This should be enough to capture the full
  * packet on most network interfaces.
  *
  * 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.
 
 /*
  * The default snapshot length is the maximum.


@@ -236,9 +258,21 @@ struct netdissect_options {
  * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows.
  *
  * The check is for <= rather than < because "l" might be 0.
  * "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) \
+       ((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))
 
 /* True if "var" was captured */
 #define ND_TTEST(var) ND_TTEST2(var, sizeof(var))


@@ -252,16 +286,22 @@ struct netdissect_options {
 #define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF
 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
 
 #define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF
 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
 

-#if 0
-extern void ts_print(netdissect_options *ipdo,
-                    const struct timeval *);
-extern void relts_print(int);
-#endif
+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);
 
 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 **);
 #if 0
 extern char *read_infile(netdissect_options *, char *);
 extern char *copy_argv(netdissect_options *, char **);


@@ -310,8 +350,6 @@ extern int unaligned_memcmp(const void *, const void *, size_t);
        (((n) != 1) ? "s" : "")
 
 #if 0
        (((n) != 1) ? "s" : "")
 
 #if 0

-extern const char *isonsap_string(netdissect_options *, const u_char *);
-extern const char *protoid_string(netdissect_options *, const u_char *);

 extern const char *dnname_string(netdissect_options *, u_short);
 extern const char *dnnum_string(netdissect_options *, u_short);
 #endif
 extern const char *dnname_string(netdissect_options *, u_short);
 extern const char *dnnum_string(netdissect_options *, u_short);
 #endif


@@ -320,6 +358,8 @@ extern const char *dnnum_string(netdissect_options *, u_short);
 
 #include <pcap.h>
 
 
 #include <pcap.h>
 

+extern char *q922_string(netdissect_options *ndo, const u_char *, u_int);
+

 typedef u_int (*if_ndo_printer)(struct netdissect_options *ndo,
                                const struct pcap_pkthdr *, const u_char *);
 typedef u_int (*if_printer)(const struct pcap_pkthdr *, const u_char *);
 typedef u_int (*if_ndo_printer)(struct netdissect_options *ndo,
                                const struct pcap_pkthdr *, const u_char *);
 typedef u_int (*if_printer)(const struct pcap_pkthdr *, const u_char *);


@@ -365,6 +405,7 @@ extern int ethertype_print(netdissect_options *,u_short, const u_char *,
                             u_int, u_int);
 
 extern int print_unknown_data(netdissect_options *,const u_char *, const char *,int);
                             u_int, u_int);
 
 extern int print_unknown_data(netdissect_options *,const u_char *, const char *,int);

+extern void ascii_print(netdissect_options *, const u_char *, u_int);

 extern void hex_print_with_offset(netdissect_options *, const char *ident, const u_char *cp,
                                  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 hex_print(netdissect_options *,const char *ident, const u_char *cp,u_int);


@@ -452,7 +493,7 @@ extern u_int atm_if_print(netdissect_options *, const struct pcap_pkthdr *, cons
 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 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 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 *);


@@ -500,7 +541,6 @@ extern void snmp_print(netdissect_options *, const u_char *, u_int);
 extern void rx_print(netdissect_options *, register const u_char *, int, int, int, u_char *);
 extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *);
 extern void nfsreply_print_noaddr(netdissect_options *, const u_char *, u_int, const u_char *);
 extern void rx_print(netdissect_options *, register const u_char *, int, int, int, u_char *);
 extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *);
 extern void nfsreply_print_noaddr(netdissect_options *, const u_char *, u_int, const u_char *);

-extern void nfsreq_print(netdissect_options *, const u_char *, u_int, const u_char *);

 extern void nfsreq_print_noaddr(netdissect_options *, const u_char *, u_int, const u_char *);
 extern void sip_print(netdissect_options *, const u_char *, u_int);
 extern void syslog_print(netdissect_options *, const u_char *, u_int);
 extern void nfsreq_print_noaddr(netdissect_options *, const u_char *, u_int, const u_char *);
 extern void sip_print(netdissect_options *, const u_char *, u_int);
 extern void syslog_print(netdissect_options *, const u_char *, u_int);


@@ -516,33 +556,30 @@ extern void print_data(netdissect_options *, const unsigned char *, int);
 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 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 u_int ppp_bsdos_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 */
 
 #if 0
 extern void ascii_print(netdissect_options *,u_int);
 extern void default_print(netdissect_options *,const u_char *, u_int);
 
 /* stuff that has not yet been rototiled */
 
 #if 0
 extern void ascii_print(netdissect_options *,u_int);
 extern void default_print(netdissect_options *,const u_char *, u_int);

-
-extern const char *linkaddr_string(netdissect_options *ndo,
-                                  const u_char *ep, const unsigned int len);
-extern void nfsreply_print(netdissect_options *,const u_char *,
-                          u_int, const u_char *);
-extern void nfsreq_print(netdissect_options *,const u_char *,
-                        u_int, const u_char *);
-extern void ppp_print(netdissect_options *,
-                     register const u_char *, u_int);
-
-extern void ppp_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
-extern void ppp_hdlc_if_print(u_char *,
-                             const struct pcap_pkthdr *, const u_char *);
-extern void ppp_bsdos_if_print(u_char *,
-                              const struct pcap_pkthdr *, const u_char *);
-
-extern void timed_print(netdissect_options *,const u_char *, u_int);

 extern char *smb_errstr(netdissect_options *,int, 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 *);
 #endif
 
 extern u_int ipnet_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);


@@ -555,8 +592,8 @@ extern u_int ieee802_11_if_print(netdissect_options *, const struct pcap_pkthdr
 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 *);
 
 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);
 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 *);
 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 *);


@@ -565,17 +602,18 @@ extern void ripng_print(netdissect_options *, const u_char *, unsigned int);
 extern int mobility_print(netdissect_options *, const u_char *, const u_char *);
 extern void dhcp6_print(netdissect_options *, const u_char *, u_int);
 extern void ospf6_print(netdissect_options *, const u_char *, u_int);
 extern int mobility_print(netdissect_options *, const u_char *, const u_char *);
 extern void dhcp6_print(netdissect_options *, const u_char *, u_int);
 extern void ospf6_print(netdissect_options *, const u_char *, u_int);

+extern void babel_print(netdissect_options *, const u_char *, u_int);

 #endif /*INET6*/
 
 #if 0
 struct cksum_vec {
 #endif /*INET6*/
 
 #if 0
 struct cksum_vec {

-       const u_int8_t  *ptr;
+       const uint8_t   *ptr;

        int             len;
 };
        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
 #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 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);