#include <sys/types.h>
#include <setjmp.h>
#include "status-exit-codes.h"
+#include "funcattrs.h" /* for PRINTFLIKE_FUNCPTR() */
+#include "diag-control.h" /* for ND_UNREACHABLE */
/*
* Data types corresponding to multi-byte integral values within data
/*
* Use this for MAC addresses.
*/
-#define MAC_ADDR_LEN 6 /* length of MAC addresses */
+#define MAC_ADDR_LEN 6U /* length of MAC addresses */
typedef unsigned char nd_mac_addr[MAC_ADDR_LEN];
/*
const char *s; /* string */
};
-extern const char *tok2strbuf(const struct tok *, const char *, u_int,
- char *buf, size_t bufsize);
-
/* tok2str is deprecated */
extern const char *tok2str(const struct tok *, const char *, u_int);
extern char *bittok2str(const struct tok *, const char *, u_int);
#define IF_PRINTER_ARGS (netdissect_options *, const struct pcap_pkthdr *, const u_char *)
-typedef u_int (*uint_if_printer) IF_PRINTER_ARGS;
-typedef void (*void_if_printer) IF_PRINTER_ARGS;
-
-/* pointer to the uint_if_printer or the void_if_printer function */
-typedef union {
- uint_if_printer uint_printer;
- void_if_printer void_printer;
- void* printer; /* generic when testing if NULL or not */
-} if_printer_t;
+typedef void (*if_printer) IF_PRINTER_ARGS;
/*
* In case the data in a buffer needs to be processed by being decrypted,
* buffer, we free the current buffer and pop the previous one off the
* stack.
*
- * A buffer has a beginnning and end pointer, and a link to the previous
+ * A buffer has a beginning and end pointer, and a link to the previous
* buffer on the stack.
*
* In other cases, we temporarily adjust the snapshot end to reflect a
struct netdissect_saved_packet_info *ndspi_prev; /* previous buffer on the stack */
};
+/* 'val' value(s) for longjmp */
+#define ND_TRUNCATED 1
+
struct netdissect_options {
int ndo_bflag; /* print 4 byte ASes in ASDOT notation */
int ndo_eflag; /* print ethernet header */
*/
int ndo_Hflag; /* dissect 802.11s draft mesh standard */
const char *ndo_protocol; /* protocol */
- jmp_buf ndo_truncated; /* jmp_buf for setjmp()/longjmp() */
+ jmp_buf ndo_early_end; /* jmp_buf for setjmp()/longjmp() */
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 */
/* stack of saved packet boundary and buffer information */
struct netdissect_saved_packet_info *ndo_packet_info_stack;
- /* pointer to the uint_if_printer or the void_if_printer function */
- if_printer_t ndo_if_printer;
- int ndo_void_printer; /* void_if_printer ? (FALSE/TRUE) */
+ /* pointer to the if_printer function */
+ if_printer ndo_if_printer;
/* pointer to void function to output stuff */
void (*ndo_default_print)(netdissect_options *,
PRINTFLIKE_FUNCPTR(2, 3);
};
-extern int nd_push_buffer(netdissect_options *, u_char *, const u_char *,
- const u_char *);
-extern int nd_push_snapend(netdissect_options *, const u_char *);
-extern void nd_change_snapend(netdissect_options *, const u_char *);
+extern WARN_UNUSED_RESULT int nd_push_buffer(netdissect_options *, u_char *, const u_char *, const u_int);
+extern WARN_UNUSED_RESULT int nd_push_snaplen(netdissect_options *, const u_char *, const u_int);
+extern void nd_change_snaplen(netdissect_options *, const u_char *, const u_int);
extern void nd_pop_packet_info(netdissect_options *);
extern void nd_pop_all_packet_info(netdissect_options *);
+static inline NORETURN void
+nd_trunc_longjmp(netdissect_options *ndo)
+{
+ longjmp(ndo->ndo_early_end, ND_TRUNCATED);
+#ifdef _AIX
+ /*
+ * In AIX <setjmp.h> decorates longjmp() with "#pragma leaves", which tells
+ * XL C that the function is noreturn, but GCC remains unaware of that and
+ * yields a "'noreturn' function does return" warning.
+ */
+ ND_UNREACHABLE
+#endif /* _AIX */
+}
+
#define PT_VAT 1 /* Visual Audio Tool */
#define PT_WB 2 /* distributed White Board */
#define PT_RPC 3 /* Remote Procedure Call */
#define PT_SOMEIP 19 /* Autosar SOME/IP Protocol */
#define PT_DOMAIN 20 /* Domain Name System (DNS) */
-#ifndef min
-#define min(a,b) ((a)>(b)?(b):(a))
-#endif
-#ifndef max
-#define max(a,b) ((b)>(a)?(b):(a))
-#endif
+#define ND_MIN(a,b) ((a)>(b)?(b):(a))
+#define ND_MAX(a,b) ((b)>(a)?(b):(a))
/* For source or destination ports tests (UDP, TCP, ...) */
#define IS_SRC_OR_DST_PORT(p) (sport == (p) || dport == (p))
#define ND_TTEST_SIZE(p) ND_TTEST_LEN(p, sizeof(*(p)))
/* Bail out if "l" bytes from "p" were not captured */
+#ifdef ND_LONGJMP_FROM_TCHECK
+#define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) nd_trunc_longjmp(ndo)
+#else
#define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) goto trunc
+#endif
/* Bail out if "*(p)" was not captured */
#define ND_TCHECK_SIZE(p) ND_TCHECK_LEN(p, sizeof(*(p)))
*/
#define ND_BYTES_AVAILABLE_AFTER(p) ND_BYTES_BETWEEN(ndo->ndo_snapend, (p))
+/* Check length < minimum for invalid packet with a custom message, format %u */
+#define ND_LCHECKMSG_U(length, minimum, what) \
+if ((length) < (minimum)) { \
+ND_PRINT(" [%s %u < %u]", (what), (length), (minimum)); \
+goto invalid; \
+}
+
+/* Check length < minimum for invalid packet with #length message, format %u */
+#define ND_LCHECK_U(length, minimum) \
+ND_LCHECKMSG_U((length), (minimum), (#length))
+
+/* Check length < minimum for invalid packet with a custom message, format %zu */
+#define ND_LCHECKMSG_ZU(length, minimum, what) \
+if ((length) < (minimum)) { \
+ND_PRINT(" [%s %u < %zu]", (what), (length), (minimum)); \
+goto invalid; \
+}
+
+/* Check length < minimum for invalid packet with #length message, format %zu */
+#define ND_LCHECK_ZU(length, minimum) \
+ND_LCHECKMSG_ZU((length), (minimum), (#length))
+
#define ND_PRINT(...) (ndo->ndo_printf)(ndo, __VA_ARGS__)
#define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
extern void fn_print_char(netdissect_options *, 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 *, 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 *);
+extern void nd_printjnp(netdissect_options *, const u_char *, u_int);
/*
* Flags for txtproto_print().
(defined(__s390__) || defined(__s390x__) || defined(__zarch__)) || \
defined(__vax__)
/*
- * The procesor natively handles unaligned loads, so just use memcpy()
+ * The processor natively handles unaligned loads, so just use memcpy()
* and memcmp(), to enable those optimizations.
*
* XXX - are those all the x86 tests we need?
extern const char *tok2strary_internal(const char **, int, const char *, int);
#define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i)
-extern uint_if_printer lookup_uint_printer(int);
-extern void_if_printer lookup_void_printer(int);
-extern if_printer_t lookup_printer(netdissect_options *, int);
+struct uint_tokary
+{
+ u_int uintval;
+ const struct tok *tokary;
+};
+
+extern const struct tok *uint2tokary_internal(const struct uint_tokary[], const size_t, const u_int);
+#define uint2tokary(a, i) uint2tokary_internal(a, sizeof(a)/sizeof(a[0]), i)
-#define ND_DEBUG {printf(" [%s:%d %s] ", __FILE__, __LINE__, __FUNCTION__); fflush(stdout);}
+extern if_printer lookup_printer(int);
+
+#define ND_DEBUG {printf(" [%s:%d %s] ", __FILE__, __LINE__, __func__); fflush(stdout);}
/* The DLT printer routines */
extern void arcnet_if_print IF_PRINTER_ARGS;
extern void arcnet_linux_if_print IF_PRINTER_ARGS;
extern void atm_if_print IF_PRINTER_ARGS;
-extern void bt_if_print IF_PRINTER_ARGS;
extern void brcm_tag_if_print IF_PRINTER_ARGS;
extern void brcm_tag_prepend_if_print IF_PRINTER_ARGS;
+extern void bt_if_print IF_PRINTER_ARGS;
extern void chdlc_if_print IF_PRINTER_ARGS;
extern void cip_if_print IF_PRINTER_ARGS;
extern void dsa_if_print IF_PRINTER_ARGS;
extern void ieee802_15_4_if_print IF_PRINTER_ARGS;
extern void ieee802_15_4_tap_if_print IF_PRINTER_ARGS;
extern void ipfc_if_print IF_PRINTER_ARGS;
-extern void ipoib_if_print IF_PRINTER_ARGS;
extern void ipnet_if_print IF_PRINTER_ARGS;
+extern void ipoib_if_print IF_PRINTER_ARGS;
extern void juniper_atm1_if_print IF_PRINTER_ARGS;
extern void juniper_atm2_if_print IF_PRINTER_ARGS;
extern void juniper_chdlc_if_print IF_PRINTER_ARGS;
extern void raw_if_print IF_PRINTER_ARGS;
extern void sl_bsdos_if_print IF_PRINTER_ARGS;
extern void sl_if_print IF_PRINTER_ARGS;
-extern void sll_if_print IF_PRINTER_ARGS;
extern void sll2_if_print IF_PRINTER_ARGS;
+extern void sll_if_print IF_PRINTER_ARGS;
extern void sunatm_if_print IF_PRINTER_ARGS;
extern void symantec_if_print IF_PRINTER_ARGS;
extern void token_if_print IF_PRINTER_ARGS;
extern void aarp_print(netdissect_options *, const u_char *, u_int);
extern int ah_print(netdissect_options *, const u_char *);
-extern void ahcp_print(netdissect_options *, const u_char *, const u_int);
+extern void ahcp_print(netdissect_options *, const u_char *, u_int);
extern void aodv_print(netdissect_options *, const u_char *, u_int, int);
extern void aoe_print(netdissect_options *, const u_char *, const u_int);
extern int arista_ethertype_print(netdissect_options *,const u_char *, u_int);
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, u_int);
-extern void cdp_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void cdp_print(netdissect_options *, const u_char *, 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 cisco_autorp_print(netdissect_options *, const u_char *, u_int);
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);
+extern void loopback_print(netdissect_options *, const u_char *, u_int);
extern void lspping_print(netdissect_options *, const u_char *, u_int);
extern void lwapp_control_print(netdissect_options *, const u_char *, u_int, int);
extern void lwapp_data_print(netdissect_options *, const u_char *, u_int);
extern void ntp_print(netdissect_options *, const u_char *, 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 openflow_print(netdissect_options *, const u_char *, 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_grace_lsa_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, 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 rtl_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *, const struct lladdr_info *);
extern void rtsp_print(netdissect_options *, const u_char *, u_int);
-extern void rx_print(netdissect_options *, const u_char *, u_int, u_int, u_int, const u_char *);
+extern void rx_print(netdissect_options *, const u_char *, u_int, uint16_t, uint16_t, const u_char *);
extern void sctp_print(netdissect_options *, const u_char *, const u_char *, u_int);
extern void sflow_print(netdissect_options *, const u_char *, u_int);
extern void ssh_print(netdissect_options *, const u_char *, u_int);
extern void udp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, u_int);
extern int vjc_print(netdissect_options *, const u_char *, u_short);
extern void vqp_print(netdissect_options *, const u_char *, 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 vrrp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int);
+extern void vtp_print(netdissect_options *, const u_char *, const u_int);
extern void vxlan_gpe_print(netdissect_options *, const u_char *, u_int);
extern void vxlan_print(netdissect_options *, const u_char *, u_int);
extern void wb_print(netdissect_options *, const u_char *, u_int);
+extern void whois_print(netdissect_options *, const u_char *, u_int);
extern void zep_print(netdissect_options *, const u_char *, u_int);
-extern void zephyr_print(netdissect_options *, const u_char *, int);
+extern void zephyr_print(netdissect_options *, const u_char *, u_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 void someip_print(netdissect_options *, const u_char *, const u_int);
projects / tcpdump / blobdiff