#include "os-proto.h"
#endif
#include <sys/types.h>
-
-#ifndef HAVE___ATTRIBUTE__
-#define __attribute__(x)
-#endif
+#include "status-exit-codes.h"
/*
* Data types corresponding to multi-byte integral values within data
typedef signed char nd_int8_t[1];
+/*
+ * "unsigned char" so that sign extension isn't done on the
+ * individual bytes while they're being assembled.
+ */
+typedef unsigned char nd_int32_t[4];
+typedef unsigned char nd_int64_t[8];
+
/*
* Use this for IPv4 addresses and netmasks.
*
* It's defined as an array of octets, so that it's not guaranteed to
* be aligned on its "natural" boundary (in some packet formats, it
- * *isn't* so aligned), and it's defined as a structure in the hopes
- * that this makes it harder to naively use EXTRACT_BE_U_4() 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.
+ * *isn't* so aligned). We have separate EXTRACT_ calls for them;
+ * sometimes you want the host-byte-order value, other times you want
+ * the network-byte-order value.
+ *
+ * Don't use EXTRACT_BE_U_4() on them, use EXTRACT_IPV4_TO_HOST_ORDER()
+ * if you want them in host byte order and EXTRACT_IPV4_TO_NETWORK_ORDER()
+ * if you want them in network byte order (which you want with system APIs
+ * that expect network-order IPv4 addresses, such as inet_ntop()).
*
- * (Among other things, we don't want somebody thinking "IPv4 addresses,
- * they're in network byte order, so we want EXTRACT_BE_U_4(), right?"
- * and then handing the result to system APIs that expect network-order
- * IPv4 addresses, such as inet_ntop(), on their little-endian PCs, getting
- * the wrong behavior, and concluding "oh, it must be in *little*-endian
- * order" and "fixing" it to use EXTRACT_LE_U_4(). Yes, people do this;
- * that's why Wireshark has tvb_get_ipv4(), to extract an IPv4 address from
- * a packet data buffer; it was introduced in reaction to somebody who
- * *had* done that.)
+ * If, on your little-endian machine (e.g., an "IBM-compatible PC", no matter
+ * what the OS, or an Intel Mac, no matter what the OS), you get the wrong
+ * answer, and you've used EXTRACT_BE_U_4(), do *N*O*T* "fix" this by using
+ * EXTRACT_LE_U_4(), fix it by using EXTRACT_IPV4_TO_NETWORK_ORDER(),
+ * otherwise you're breaking the result on big-endian machines (e.g.,
+ * most PowerPC/Power ISA machines, System/390 and z/Architecture, SPARC,
+ * etc.).
+ *
+ * Yes, people do this; that's why Wireshark has tvb_get_ipv4(), to extract
+ * an IPv4 address from a packet data buffer; it was introduced in reaction
+ * to somebody who *had* done that.
*/
-typedef struct {
- unsigned char bytes[4];
-} nd_ipv4;
+typedef unsigned char nd_ipv4[4];
/*
* Use this for IPv6 addresses and netmasks.
*/
-typedef struct {
- unsigned char bytes[16];
-} nd_ipv6;
+typedef unsigned char nd_ipv6[16];
/*
* Use this for MAC addresses.
*/
typedef unsigned char nd_byte;
-/* snprintf et al */
+/*
+ * Round up x to a multiple of y; y must be a power of 2.
+ */
+#ifndef roundup2
+#define roundup2(x, y) (((x)+((y)-1))&(~((y)-1)))
+#endif
+
+/* nd_snprintf et al */
#include <stdarg.h>
#include <pcap.h>
/* 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, FORMAT_STRING(const char *format), ...)
- PRINTFLIKE(3, 4);
-#endif /* !defined(HAVE_SNPRINTF) */
-
-#if !defined(HAVE_VSNPRINTF)
-int vsnprintf (char *str, size_t sz, FORMAT_STRING(const char *format),
- va_list ap) PRINTFLIKE(3, 0);
-#endif /* !defined(HAVE_VSNPRINTF) */
-
#ifndef HAVE_STRLCAT
extern size_t strlcat (char *, const char *, size_t);
#endif
* LF, CR and SPACE as graphical chars
*/
int ndo_Hflag; /* dissect 802.11s draft mesh standard */
+ const char *ndo_protocol; /* protocol */
+ void *ndo_last_mem_p; /* pointer to the last allocated memory chunk */
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 */
PRINTFLIKE_FUNCPTR(2, 3);
/* pointer to function to output errors */
void NORETURN_FUNCPTR (*ndo_error)(netdissect_options *,
+ status_exit_codes_t status,
const char *fmt, ...)
- PRINTFLIKE_FUNCPTR(2, 3);
+ PRINTFLIKE_FUNCPTR(3, 4);
/* pointer to function to output warnings */
void (*ndo_warning)(netdissect_options *,
const char *fmt, ...)
*/
#define MAXIMUM_SNAPLEN 262144
-#define ESRC(ep) ((ep)->ether_shost)
-#define EDST(ep) ((ep)->ether_dhost)
-
/*
* True if "l" bytes of "var" were captured.
*
*/
#define IS_NOT_NEGATIVE(x) (((x) > 0) || ((x) == 0))
-#define ND_TTEST2(var, l) \
- (IS_NOT_NEGATIVE(l) && \
- ((uintptr_t)ndo->ndo_snapend - (l) <= (uintptr_t)ndo->ndo_snapend && \
- (uintptr_t)&(var) <= (uintptr_t)ndo->ndo_snapend - (l)))
-
#define ND_TTEST_LEN(p, l) \
(IS_NOT_NEGATIVE(l) && \
((uintptr_t)ndo->ndo_snapend - (l) <= (uintptr_t)ndo->ndo_snapend && \
(uintptr_t)(p) <= (uintptr_t)ndo->ndo_snapend - (l)))
-/* True if "var" was captured */
-#define ND_TTEST(var) ND_TTEST2(var, sizeof(var))
-
-/* Bail if "l" bytes of "var" were not captured */
-#define ND_TCHECK2(var, l) if (!ND_TTEST2(var, l)) goto trunc
+/* True if "*(p)" was captured */
+#define ND_TTEST_SIZE(p) ND_TTEST_LEN(p, sizeof(*(p)))
+/* Bail out if "l" bytes from "p" were not captured */
#define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) goto trunc
-/* Bail if "var" was not captured */
-#define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var))
+/* Bail out if "*(p)" was not captured */
+#define ND_TCHECK_SIZE(p) ND_TCHECK_LEN(p, sizeof(*(p)))
-#define ND_PRINT(STUFF) (ndo->ndo_printf)STUFF
+#define ND_PRINT(...) (ndo->ndo_printf)(ndo, __VA_ARGS__)
#define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
extern void ts_print(netdissect_options *, const struct timeval *);
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 *);
+extern void fn_print_str(netdissect_options *, const u_char *);
+extern int nd_print(netdissect_options *, const u_char *, const u_char *);
+extern u_int nd_printztn(netdissect_options *ndo, const u_char *, u_int, const u_char *);
+extern int nd_printn(netdissect_options *, const u_char *, u_int, const u_char *);
+extern int nd_printzp(netdissect_options *, const u_char *, u_int, const u_char *);
/*
* Flags for txtproto_print().
#define ND_ISGRAPH(c) ((c) > 0x20 && (c) <= 0x7E)
#define ND_TOASCII(c) ((c) & 0x7F)
-extern void safeputchar(netdissect_options *, const u_char);
-extern void safeputs(netdissect_options *, const u_char *, const u_int);
-
#if (defined(__i386__) || defined(_M_IX86) || defined(__X86__) || defined(__x86_64__) || defined(_M_X64)) || \
(defined(__arm__) || defined(_M_ARM) || defined(__aarch64__)) || \
(defined(__m68k__) && (!defined(__mc68000__) && !defined(__mc68010__))) || \
extern u_int sl_bsdos_if_print IF_PRINTER_ARGS;
extern u_int sl_if_print IF_PRINTER_ARGS;
extern u_int sll_if_print IF_PRINTER_ARGS;
+extern u_int sll2_if_print IF_PRINTER_ARGS;
extern u_int sunatm_if_print IF_PRINTER_ARGS;
extern u_int symantec_if_print IF_PRINTER_ARGS;
extern u_int token_if_print IF_PRINTER_ARGS;
extern void beep_print(netdissect_options *, const u_char *, u_int);
extern void bfd_print(netdissect_options *, const u_char *, u_int, u_int);
extern void bgp_print(netdissect_options *, const u_char *, u_int);
-extern char *bgp_vpn_rd_print (netdissect_options *, const u_char *);
+extern const 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 *, u_int, const struct lladdr_info *);
-extern void carp_print(netdissect_options *, const u_char *, u_int, int);
+extern void carp_print(netdissect_options *, const u_char *, u_int, u_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);
extern u_int chdlc_print(netdissect_options *, const u_char *, u_int);
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 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 void ip_inner_print(netdissect_options *, const u_char *, u_int, u_int nh, const u_char *);
extern void ipcomp_print(netdissect_options *, 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 int mptcp_print(netdissect_options *, const u_char *, u_int, u_char);
extern void msdp_print(netdissect_options *, const u_char *, u_int);
extern void msnlb_print(netdissect_options *, const u_char *);
-extern void nbt_tcp_print(netdissect_options *, const u_char *, int);
-extern void nbt_udp137_print(netdissect_options *, const u_char *, int);
-extern void nbt_udp138_print(netdissect_options *, const u_char *, int);
-extern void netbeui_print(netdissect_options *, u_short, const u_char *, int);
+extern void nbt_tcp_print(netdissect_options *, const u_char *, u_int);
+extern void nbt_udp137_print(netdissect_options *, const u_char *, u_int);
+extern void nbt_udp138_print(netdissect_options *, const u_char *, u_int);
+extern void netbeui_print(netdissect_options *, u_short, const u_char *, u_int);
extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern void nfsreply_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern void nfsreq_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *);
-extern const u_char * ns_nprint (netdissect_options *, const u_char *, const u_char *);
+extern const u_char * ns_nprint(netdissect_options *, const u_char *, const u_char *);
extern void domain_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 void openflow_print(netdissect_options *, const u_char *, const u_int);
extern void ospf6_print(netdissect_options *, const u_char *, u_int);
extern void ospf_print(netdissect_options *, const u_char *, u_int, const u_char *);
-extern int ospf_print_grace_lsa(netdissect_options *, const uint8_t *, u_int);
-extern int ospf_print_te_lsa(netdissect_options *, const uint8_t *, u_int);
+extern int ospf_grace_lsa_print(netdissect_options *, const u_char *, u_int);
+extern int ospf_te_lsa_print(netdissect_options *, const u_char *, u_int);
extern void otv_print(netdissect_options *, const u_char *, u_int);
extern void pgm_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern void pim_print(netdissect_options *, const u_char *, u_int, const u_char *);
extern u_int pppoe_print(netdissect_options *, const u_char *, u_int);
extern void pptp_print(netdissect_options *, const u_char *);
extern int print_unknown_data(netdissect_options *, const u_char *, const char *, int);
-extern char *q922_string(netdissect_options *, const u_char *, u_int);
+extern const 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 sflow_print(netdissect_options *, const u_char *, u_int);
extern void sip_print(netdissect_options *, const u_char *, u_int);
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 smb_data_print(netdissect_options *, const u_char *, u_int);
+extern void smb_tcp_print(netdissect_options *, const u_char *, u_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 struct lladdr_info *, const struct lladdr_info *, u_int);
extern void snmp_print(netdissect_options *, const u_char *, u_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 wb_print(netdissect_options *, const u_char *, u_int);
extern void zephyr_print(netdissect_options *, const u_char *, int);
extern void zmtp1_print(netdissect_options *, const u_char *, u_int);
extern void zmtp1_datagram_print(netdissect_options *, const u_char *, const u_int);
extern int nextproto6_cksum(netdissect_options *, const struct ip6_hdr *, const uint8_t *, u_int, u_int, u_int);
/* Utilities */
+extern void nd_print_trunc(netdissect_options *);
+
extern int mask2plen(uint32_t);
extern int mask62plen(const u_char *);
extern const char *dnname_string(netdissect_options *, u_short);
extern const char *dnnum_string(netdissect_options *, u_short);
-extern char *smb_errstr(int, int);
-extern const char *nt_errstr(uint32_t);
-
extern int decode_prefix4(netdissect_options *, const u_char *, u_int, char *, u_int);
extern int decode_prefix6(netdissect_options *, const u_char *, u_int, char *, u_int);
extern void esp_print_decodesecret(netdissect_options *);
extern int esp_print_decrypt_buffer_by_ikev2(netdissect_options *, int,
- u_char spii[8], u_char spir[8],
+ const u_char spii[8],
+ const u_char spir[8],
const u_char *, const u_char *);
#endif /* netdissect_h */
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