X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/a36b3aeb877e4357918cfd99ddad5ce913a3a0b6..afe133ecef9a8593ecf7fcbb557276c05f2bc7ab:/netdissect.h diff --git a/netdissect.h b/netdissect.h index 644997d8..b744fe87 100644 --- a/netdissect.h +++ b/netdissect.h @@ -30,7 +30,10 @@ #endif #include #include +#include #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 @@ -127,10 +130,6 @@ extern size_t strlcat (char *, const char *, size_t); extern size_t strlcpy (char *, const char *, size_t); #endif -#ifndef HAVE_STRDUP -extern char *strdup (const char *str); -#endif - #ifndef HAVE_STRSEP extern char *strsep(char **, const char *); #endif @@ -140,9 +139,6 @@ struct tok { 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); @@ -178,7 +174,7 @@ typedef void (*if_printer) IF_PRINTER_ARGS; * 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 @@ -219,6 +215,7 @@ struct netdissect_options { 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_print_sampling; /* print every Nth packet */ int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */ int ndo_tstamp_precision; /* requested time stamp precision */ const char *program_name; /* Name of the program using the library */ @@ -263,13 +260,26 @@ struct 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 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 */ @@ -290,6 +300,7 @@ extern void nd_pop_all_packet_info(netdissect_options *); #define PT_PTP 18 /* PTP */ #define PT_SOMEIP 19 /* Autosar SOME/IP Protocol */ #define PT_DOMAIN 20 /* Domain Name System (DNS) */ +#define PT_QUIC 21 /* QUIC */ #define ND_MIN(a,b) ((a)>(b)?(b):(a)) #define ND_MAX(a,b) ((b)>(a)?(b):(a)) @@ -382,27 +393,39 @@ extern void nd_pop_all_packet_info(netdissect_options *); */ #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)); \ +/* + * Check (expression_1 operator expression_2) for invalid packet with + * a custom message, format %u + */ +#define ND_ICHECKMSG_U(message, expression_1, operator, expression_2) \ +if ((expression_1) operator (expression_2)) { \ +ND_PRINT(" [%s %u %s %u]", (message), (expression_1), (#operator), (expression_2)); \ 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 (expression_1 operator expression_2) for invalid packet with + * "expression_1" message, format %u + */ +#define ND_ICHECK_U(expression_1, operator, expression_2) \ +ND_ICHECKMSG_U((#expression_1), (expression_1), operator, (expression_2)) -/* 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)); \ +/* + * Check (expression_1 operator expression_2) for invalid packet with + * a custom message, format %zu + */ +#define ND_ICHECKMSG_ZU(message, expression_1, operator, expression_2) \ +if ((expression_1) operator (expression_2)) { \ +ND_PRINT(" [%s %u %s %zu]", (message), (expression_1), (#operator), (expression_2)); \ 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)) +/* + * Check (expression_1 operator expression_2) for invalid packet with + * "expression_1" message, format %zu + */ +#define ND_ICHECK_ZU(expression_1, operator, expression_2) \ +ND_ICHECKMSG_ZU((#expression_1), (expression_1), operator, (expression_2)) #define ND_PRINT(...) (ndo->ndo_printf)(ndo, __VA_ARGS__) #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length) @@ -411,6 +434,9 @@ extern void ts_print(netdissect_options *, const struct timeval *); extern void signed_relts_print(netdissect_options *, int32_t); extern void unsigned_relts_print(netdissect_options *, uint32_t); +extern const char *nd_format_time(char *buf, size_t bufsize, + const char *format, const struct tm *timeptr); + extern void fn_print_char(netdissect_options *, u_char); extern void fn_print_str(netdissect_options *, const u_char *); extern u_int nd_printztn(netdissect_options *, const u_char *, u_int, const u_char *); @@ -433,7 +459,7 @@ extern void txtproto_print(netdissect_options *, const u_char *, u_int, (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? @@ -492,9 +518,9 @@ extern void ap1394_if_print IF_PRINTER_ARGS; 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; @@ -509,8 +535,8 @@ extern void ieee802_11_radio_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; @@ -543,8 +569,8 @@ extern void prism_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; @@ -591,7 +617,7 @@ extern void calm_fast_print(netdissect_options *, const u_char *, u_int, const s extern void carp_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 chdlc_print(netdissect_options *, const u_char *, u_int); extern void cisco_autorp_print(netdissect_options *, const u_char *, u_int); extern void cnfp_print(netdissect_options *, const u_char *); extern void dccp_print(netdissect_options *, const u_char *, const u_char *, u_int); @@ -691,14 +717,16 @@ extern int print_unknown_data(netdissect_options *, const u_char *, const char * extern void ptp_print(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 int quic_detect(netdissect_options *, const u_char *, const u_int); +extern void quic_print(netdissect_options *, const u_char *, const 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, 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, uint16_t, uint16_t, const u_char *); extern void sctp_print(netdissect_options *, const u_char *, const u_char *, u_int); @@ -724,18 +752,18 @@ extern void udld_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 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 *, u_int); extern void zmtp1_datagram_print(netdissect_options *, const u_char *, const u_int); extern void zmtp1_print(netdissect_options *, const u_char *, u_int); /* checksum routines */ -extern void init_checksum(void); extern uint16_t verify_crc10_cksum(uint16_t, const u_char *, int); extern uint16_t create_osi_cksum(const uint8_t *, int, int);