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tcpdump/print-arp.c

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Initial revision
1999-10-08 07:47:09 +08:00
/*
* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
Have the configure script arrange that the Makefile define _U_ appropriately, and that GNUmakefile and the MSVC++ project file define it apppriately, as we do with libpcap, rather than defining it in "interface.h". Undo the rcsid-shuffling and addition of extra #includes, as we no longer need to arrange that "interface.h" be included before using _U_ in an RCS ID or copyright.
2003-11-16 17:36:07 +08:00
#ifndef lint
static const char rcsid[] _U_ =
"@(#) $Header: /tcpdump/master/tcpdump/print-arp.c,v 1.63 2003-11-16 09:36:12 guy Exp $ (LBL)";
#endif
Switch to config.h instead of passing defines in DEFS.
1999-11-21 17:36:43 +08:00
#ifdef HAVE_CONFIG_H
#include "config.h"
Initial revision
1999-10-08 07:47:09 +08:00
#endif
Added support for Win32, based on WinPcap.
2002-08-01 16:52:55 +08:00
#include <tcpdump-stdinc.h>
Initial revision
1999-10-08 07:47:09 +08:00
#include <stdio.h>
#include <string.h>
#include "interface.h"
#include "addrtoname.h"
Add definitions of Ethernet types from "linux-includes/netinet/if_ether.h" to "ethertype.h". Move other stuff used by dissectors from <netinet/if_ether.h> to "ether.h", along the lines of "fddi.h" and "token.h". Move ARP declarations from BSD include files to "print-arp.c". Remove from dissectors includes of <netinet/if_ether.h>, and add includes of "ethertype.h" and/or "ether.h" as necessary. Get rid of configuration options that test declarations now made in "ether.h" or "print-arp.c", as those declarations are now under our control, not the OS's control.
2000-09-23 16:03:27 +08:00
#include "ether.h"
Initial revision
1999-10-08 07:47:09 +08:00
#include "ethertype.h"
#include "extract.h" /* must come after interface.h */
Add definitions of Ethernet types from "linux-includes/netinet/if_ether.h" to "ethertype.h". Move other stuff used by dissectors from <netinet/if_ether.h> to "ether.h", along the lines of "fddi.h" and "token.h". Move ARP declarations from BSD include files to "print-arp.c". Remove from dissectors includes of <netinet/if_ether.h>, and add includes of "ethertype.h" and/or "ether.h" as necessary. Get rid of configuration options that test declarations now made in "ether.h" or "print-arp.c", as those declarations are now under our control, not the OS's control.
2000-09-23 16:03:27 +08:00
/*
* Address Resolution Protocol.
*
* See RFC 826 for protocol description. ARP packets are variable
* in size; the arphdr structure defines the fixed-length portion.
* Protocol type values are the same as those for 10 Mb/s Ethernet.
* It is followed by the variable-sized fields ar_sha, arp_spa,
* arp_tha and arp_tpa in that order, according to the lengths
* specified. Field names used correspond to RFC 826.
*/
Call the ARP header structure we define "struct arp_pkthdr" rather than "struct arphdr"; on Tru64 UNIX 5.x, including <netinet/in.h> causes <net/if_arp.h> to be included, and that defines its own "struct arphdr", causing the compile to fail.
2002-02-25 17:40:32 +08:00
struct arp_pkthdr {
Add definitions of Ethernet types from "linux-includes/netinet/if_ether.h" to "ethertype.h". Move other stuff used by dissectors from <netinet/if_ether.h> to "ether.h", along the lines of "fddi.h" and "token.h". Move ARP declarations from BSD include files to "print-arp.c". Remove from dissectors includes of <netinet/if_ether.h>, and add includes of "ethertype.h" and/or "ether.h" as necessary. Get rid of configuration options that test declarations now made in "ether.h" or "print-arp.c", as those declarations are now under our control, not the OS's control.
2000-09-23 16:03:27 +08:00
u_short ar_hrd; /* format of hardware address */
#define ARPHRD_ETHER 1 /* ethernet hardware format */
#define ARPHRD_IEEE802 6 /* token-ring hardware format */
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
#define ARPHRD_ARCNET 7 /* arcnet hardware format */
Add definitions of Ethernet types from "linux-includes/netinet/if_ether.h" to "ethertype.h". Move other stuff used by dissectors from <netinet/if_ether.h> to "ether.h", along the lines of "fddi.h" and "token.h". Move ARP declarations from BSD include files to "print-arp.c". Remove from dissectors includes of <netinet/if_ether.h>, and add includes of "ethertype.h" and/or "ether.h" as necessary. Get rid of configuration options that test declarations now made in "ether.h" or "print-arp.c", as those declarations are now under our control, not the OS's control.
2000-09-23 16:03:27 +08:00
#define ARPHRD_FRELAY 15 /* frame relay hardware format */
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
#define ARPHRD_STRIP 23 /* Ricochet Starmode Radio hardware format */
#define ARPHRD_IEEE1394 24 /* IEEE 1394 (FireWire) hardware format */
Add definitions of Ethernet types from "linux-includes/netinet/if_ether.h" to "ethertype.h". Move other stuff used by dissectors from <netinet/if_ether.h> to "ether.h", along the lines of "fddi.h" and "token.h". Move ARP declarations from BSD include files to "print-arp.c". Remove from dissectors includes of <netinet/if_ether.h>, and add includes of "ethertype.h" and/or "ether.h" as necessary. Get rid of configuration options that test declarations now made in "ether.h" or "print-arp.c", as those declarations are now under our control, not the OS's control.
2000-09-23 16:03:27 +08:00
u_short ar_pro; /* format of protocol address */
u_char ar_hln; /* length of hardware address */
u_char ar_pln; /* length of protocol address */
u_short ar_op; /* one of: */
#define ARPOP_REQUEST 1 /* request to resolve address */
#define ARPOP_REPLY 2 /* response to previous request */
#define ARPOP_REVREQUEST 3 /* request protocol address given hardware */
#define ARPOP_REVREPLY 4 /* response giving protocol address */
#define ARPOP_INVREQUEST 8 /* request to identify peer */
#define ARPOP_INVREPLY 9 /* response identifying peer */
/*
* The remaining fields are variable in size,
* according to the sizes above.
*/
#ifdef COMMENT_ONLY
u_char ar_sha[]; /* sender hardware address */
u_char ar_spa[]; /* sender protocol address */
u_char ar_tha[]; /* target hardware address */
u_char ar_tpa[]; /* target protocol address */
#endif
Make "ar_sha()", "ar_spa()", "ar_tha()", and "ar_tpa()" return "const u_char *" rather than "const caddr_t", to avoid signed vs. unsigned complaints from various compilers.
2002-04-25 12:37:31 +08:00
#define ar_sha(ap) (((const u_char *)((ap)+1))+0)
#define ar_spa(ap) (((const u_char *)((ap)+1))+ (ap)->ar_hln)
#define ar_tha(ap) (((const u_char *)((ap)+1))+ (ap)->ar_hln+(ap)->ar_pln)
#define ar_tpa(ap) (((const u_char *)((ap)+1))+2*(ap)->ar_hln+(ap)->ar_pln)
The "__attribute__((packed))" tag on structures causes some files not to compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
2002-12-11 15:13:49 +08:00
};
Add definitions of Ethernet types from "linux-includes/netinet/if_ether.h" to "ethertype.h". Move other stuff used by dissectors from <netinet/if_ether.h> to "ether.h", along the lines of "fddi.h" and "token.h". Move ARP declarations from BSD include files to "print-arp.c". Remove from dissectors includes of <netinet/if_ether.h>, and add includes of "ethertype.h" and/or "ether.h" as necessary. Get rid of configuration options that test declarations now made in "ether.h" or "print-arp.c", as those declarations are now under our control, not the OS's control.
2000-09-23 16:03:27 +08:00
Some compilers may pad structures to a length that's a multiple of 2 or 4 bytes, even though no member in the structure requires such an alignment; don't use "sizeof (struct ether_arp), explicitly #define the header length and use that #defined value. We don't use "struct ether_addr" in any dissectors, so there's no need to define it in "ether.h" - and, if compilers pad it to a multiple of 4 bytes, you can't use it anyway, as it'll be 8 bytes long, not 6 bytes long.
2000-10-09 11:24:24 +08:00
#define ARP_HDRLEN 8
The "__attribute__((packed))" tag on structures causes some files not to compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
2002-12-11 15:13:49 +08:00
#define HRD(ap) EXTRACT_16BITS(&(ap)->ar_hrd)
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
#define HLN(ap) ((ap)->ar_hln)
#define PLN(ap) ((ap)->ar_pln)
The "__attribute__((packed))" tag on structures causes some files not to compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
2002-12-11 15:13:49 +08:00
#define OP(ap) EXTRACT_16BITS(&(ap)->ar_op)
#define PRO(ap) EXTRACT_16BITS(&(ap)->ar_pro)
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
#define SHA(ap) (ar_sha(ap))
#define SPA(ap) (ar_spa(ap))
#define THA(ap) (ar_tha(ap))
#define TPA(ap) (ar_tpa(ap))
Initial revision
1999-10-08 07:47:09 +08:00
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
/*
* ATM Address Resolution Protocol.
*
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
* See RFC 2225 for protocol description. ATMARP packets are similar
* to ARP packets, except that there are no length fields for the
* protocol address - instead, there are type/length fields for
* the ATM number and subaddress - and the hardware addresses consist
* of an ATM number and an ATM subaddress.
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
*/
struct atmarp_pkthdr {
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
u_short aar_hrd; /* format of hardware address */
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
#define ARPHRD_ATM2225 19 /* ATM (RFC 2225) */
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
u_short aar_pro; /* format of protocol address */
u_char aar_shtl; /* length of source ATM number */
u_char aar_sstl; /* length of source ATM subaddress */
#define ATMARP_IS_E164 0x40 /* bit in type/length for E.164 format */
#define ATMARP_LEN_MASK 0x3F /* length of {sub}address in type/length */
u_short aar_op; /* same as regular ARP */
#define ATMARPOP_NAK 10 /* NAK */
u_char aar_spln; /* length of source protocol address */
u_char aar_thtl; /* length of target ATM number */
u_char aar_tstl; /* length of target ATM subaddress */
u_char aar_tpln; /* length of target protocol address */
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
/*
* The remaining fields are variable in size,
* according to the sizes above.
*/
#ifdef COMMENT_ONLY
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
u_char aar_sha[]; /* source ATM number */
u_char aar_ssa[]; /* source ATM subaddress */
u_char aar_spa[]; /* sender protocol address */
u_char aar_tha[]; /* target ATM number */
u_char aar_tsa[]; /* target ATM subaddress */
u_char aar_tpa[]; /* target protocol address */
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
#endif
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
The "__attribute__((packed))" tag on structures causes some files not to compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
2002-12-11 15:13:49 +08:00
#define ATMHRD(ap) EXTRACT_16BITS(&(ap)->aar_hrd)
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
#define ATMSHLN(ap) ((ap)->aar_shtl & ATMARP_LEN_MASK)
#define ATMSSLN(ap) ((ap)->aar_sstl & ATMARP_LEN_MASK)
#define ATMSPLN(ap) ((ap)->aar_spln)
The "__attribute__((packed))" tag on structures causes some files not to compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
2002-12-11 15:13:49 +08:00
#define ATMOP(ap) EXTRACT_16BITS(&(ap)->aar_op)
#define ATMPRO(ap) EXTRACT_16BITS(&(ap)->aar_pro)
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
#define ATMTHLN(ap) ((ap)->aar_thtl & ATMARP_LEN_MASK)
#define ATMTSLN(ap) ((ap)->aar_tstl & ATMARP_LEN_MASK)
#define ATMTPLN(ap) ((ap)->aar_tpln)
#define aar_sha(ap) ((const u_char *)((ap)+1))
#define aar_ssa(ap) (aar_sha(ap) + ATMSHLN(ap))
#define aar_spa(ap) (aar_ssa(ap) + ATMSSLN(ap))
#define aar_tha(ap) (aar_spa(ap) + ATMSPLN(ap))
#define aar_tsa(ap) (aar_tha(ap) + ATMTHLN(ap))
#define aar_tpa(ap) (aar_tsa(ap) + ATMTSLN(ap))
The "__attribute__((packed))" tag on structures causes some files not to compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
2002-12-11 15:13:49 +08:00
};
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
#define ATMSHA(ap) (aar_sha(ap))
#define ATMSSA(ap) (aar_ssa(ap))
#define ATMSPA(ap) (aar_spa(ap))
#define ATMTHA(ap) (aar_tha(ap))
#define ATMTSA(ap) (aar_tsa(ap))
#define ATMTPA(ap) (aar_tpa(ap))
Initial revision
1999-10-08 07:47:09 +08:00
static u_char ezero[6];
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
static void
Don't use "sa_len" as a variable name - it causes problems on Irix, where <sys/socket.h> #defines sa_len.
2003-01-26 07:27:09 +08:00
atmarp_addr_print(const u_char *ha, u_int ha_len, const u_char *srca,
u_int srca_len)
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
{
Move the check for a zero-length hardware address into "atmarp_addr_print()".
2002-09-05 02:56:11 +08:00
if (ha_len == 0)
(void)printf("<No address>");
else {
(void)printf("%s", linkaddr_string(ha, ha_len));
Don't use "sa_len" as a variable name - it causes problems on Irix, where <sys/socket.h> #defines sa_len.
2003-01-26 07:27:09 +08:00
if (srca_len != 0)
(void)printf(",%s", linkaddr_string(srca, srca_len));
Move the check for a zero-length hardware address into "atmarp_addr_print()".
2002-09-05 02:56:11 +08:00
}
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
}
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
static void
atmarp_print(const u_char *bp, u_int length, u_int caplen)
{
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
const struct atmarp_pkthdr *ap;
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
u_short pro, hrd, op;
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
ap = (const struct atmarp_pkthdr *)bp;
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
TCHECK(*ap);
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
The "__attribute__((packed))" tag on structures causes some files not to compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
2002-12-11 15:13:49 +08:00
hrd = ATMHRD(ap);
pro = ATMPRO(ap);
op = ATMOP(ap);
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
if (!TTEST2(*aar_tpa(ap), ATMTPLN(ap))) {
(void)printf("truncated-atmarp");
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
default_print((const u_char *)ap, length);
return;
}
Do sanity checking on the hardware address and protocol address lengths; if the checks fail, treat it the same as we do for and unknown protocol (we require the hardware address length not to be zero, as "linkaddr_string()" can't handle that, and we require the protocol address length to be 4, as we only handle IP as a protocol type).
2002-09-04 18:11:44 +08:00
if ((pro != ETHERTYPE_IP && pro != ETHERTYPE_TRAIL) ||
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
ATMSPLN(ap) != 4 || ATMTPLN(ap) != 4) {
(void)printf("atmarp-#%d for proto #%d (%d/%d) hardware #%d",
op, pro, ATMSPLN(ap), ATMTPLN(ap), hrd);
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
return;
}
if (pro == ETHERTYPE_TRAIL)
(void)printf("trailer-");
switch (op) {
case ARPOP_REQUEST:
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
(void)printf("arp who-has %s", ipaddr_string(ATMTPA(ap)));
if (ATMTHLN(ap) != 0) {
(void)printf(" (");
atmarp_addr_print(ATMTHA(ap), ATMTHLN(ap),
ATMTSA(ap), ATMTSLN(ap));
(void)printf(")");
}
(void)printf(" tell %s", ipaddr_string(ATMSPA(ap)));
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
break;
case ARPOP_REPLY:
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
(void)printf("arp reply %s", ipaddr_string(ATMSPA(ap)));
(void)printf(" is-at ");
Move the check for a zero-length hardware address into "atmarp_addr_print()".
2002-09-05 02:56:11 +08:00
atmarp_addr_print(ATMSHA(ap), ATMSHLN(ap), ATMSSA(ap),
ATMSSLN(ap));
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
break;
case ARPOP_INVREQUEST:
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
(void)printf("invarp who-is ");
Move the check for a zero-length hardware address into "atmarp_addr_print()".
2002-09-05 02:56:11 +08:00
atmarp_addr_print(ATMTHA(ap), ATMTHLN(ap), ATMTSA(ap),
ATMTSLN(ap));
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
(void)printf(" tell ");
Move the check for a zero-length hardware address into "atmarp_addr_print()".
2002-09-05 02:56:11 +08:00
atmarp_addr_print(ATMSHA(ap), ATMSHLN(ap), ATMSSA(ap),
ATMSSLN(ap));
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
break;
case ARPOP_INVREPLY:
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
(void)printf("invarp reply ");
Move the check for a zero-length hardware address into "atmarp_addr_print()".
2002-09-05 02:56:11 +08:00
atmarp_addr_print(ATMSHA(ap), ATMSHLN(ap), ATMSSA(ap),
ATMSSLN(ap));
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
(void)printf(" at %s", ipaddr_string(ATMSPA(ap)));
break;
case ATMARPOP_NAK:
(void)printf("nak reply for %s",
ipaddr_string(ATMSPA(ap)));
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
break;
default:
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
(void)printf("atmarp-#%d", op);
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
default_print((const u_char *)ap, caplen);
return;
}
return;
trunc:
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
(void)printf("[|atmarp]");
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
}
Initial revision
1999-10-08 07:47:09 +08:00
void
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
arp_print(const u_char *bp, u_int length, u_int caplen)
Initial revision
1999-10-08 07:47:09 +08:00
{
Call the ARP header structure we define "struct arp_pkthdr" rather than "struct arphdr"; on Tru64 UNIX 5.x, including <netinet/in.h> causes <net/if_arp.h> to be included, and that defines its own "struct arphdr", causing the compile to fail.
2002-02-25 17:40:32 +08:00
const struct arp_pkthdr *ap;
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
u_short pro, hrd, op;
Initial revision
1999-10-08 07:47:09 +08:00
Call the ARP header structure we define "struct arp_pkthdr" rather than "struct arphdr"; on Tru64 UNIX 5.x, including <netinet/in.h> causes <net/if_arp.h> to be included, and that defines its own "struct arphdr", causing the compile to fail.
2002-02-25 17:40:32 +08:00
ap = (const struct arp_pkthdr *)bp;
Eliminate some unused parameters. Use const more. Use EXTRACT_* macros more. Use TCHECK* more. Use tok2str() to replace some home-grown workalikes. smb: - Get rid of private types, use tcpdump-defined types - Rename fdata and fdata1 to smb_fdata and smb_fdata1 to avoid conflict with IRIX library function.
2001-09-18 05:57:50 +08:00
TCHECK(*ap);
The "__attribute__((packed))" tag on structures causes some files not to compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
2002-12-11 15:13:49 +08:00
hrd = HRD(ap);
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
if (hrd == ARPHRD_ATM2225) {
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
atmarp_print(bp, length, caplen);
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
return;
}
The "__attribute__((packed))" tag on structures causes some files not to compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
2002-12-11 15:13:49 +08:00
pro = PRO(ap);
op = OP(ap);
Initial revision
1999-10-08 07:47:09 +08:00
Fix the ATMARP dissector to correctly dissect RFC 2225 ATM ARP. Fix the ARP dissector to check the hardware type before checking whether the addresses are in the captured data, and call the ATMARP dissector if the hardware type is 19. Also fix it to return after the ATMARP dissector returns. Use "TTEST2()" to check whether the addresses are in the captured data.
2002-09-04 19:22:13 +08:00
if (!TTEST2(*ar_tpa(ap), PLN(ap))) {
(void)printf("truncated-arp");
default_print((const u_char *)ap, length);
return;
}
Do sanity checking on the hardware address and protocol address lengths; if the checks fail, treat it the same as we do for and unknown protocol (we require the hardware address length not to be zero, as "linkaddr_string()" can't handle that, and we require the protocol address length to be 4, as we only handle IP as a protocol type).
2002-09-04 18:11:44 +08:00
if ((pro != ETHERTYPE_IP && pro != ETHERTYPE_TRAIL) ||
PLN(ap) != 4 || HLN(ap) == 0) {
Initial revision
1999-10-08 07:47:09 +08:00
(void)printf("arp-#%d for proto #%d (%d) hardware #%d (%d)",
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
op, pro, PLN(ap), hrd, HLN(ap));
Initial revision
1999-10-08 07:47:09 +08:00
return;
}
if (pro == ETHERTYPE_TRAIL)
(void)printf("trailer-");
switch (op) {
case ARPOP_REQUEST:
(void)printf("arp who-has %s", ipaddr_string(TPA(ap)));
Eliminate some unused parameters. Use const more. Use EXTRACT_* macros more. Use TCHECK* more. Use tok2str() to replace some home-grown workalikes. smb: - Get rid of private types, use tcpdump-defined types - Rename fdata and fdata1 to smb_fdata and smb_fdata1 to avoid conflict with IRIX library function.
2001-09-18 05:57:50 +08:00
if (memcmp((const char *)ezero, (const char *)THA(ap), HLN(ap)) != 0)
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
(void)printf(" (%s)",
linkaddr_string(THA(ap), HLN(ap)));
Initial revision
1999-10-08 07:47:09 +08:00
(void)printf(" tell %s", ipaddr_string(SPA(ap)));
break;
case ARPOP_REPLY:
(void)printf("arp reply %s", ipaddr_string(SPA(ap)));
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
(void)printf(" is-at %s", linkaddr_string(SHA(ap), HLN(ap)));
Initial revision
1999-10-08 07:47:09 +08:00
break;
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
case ARPOP_REVREQUEST:
Initial revision
1999-10-08 07:47:09 +08:00
(void)printf("rarp who-is %s tell %s",
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
linkaddr_string(THA(ap), HLN(ap)),
linkaddr_string(SHA(ap), HLN(ap)));
Initial revision
1999-10-08 07:47:09 +08:00
break;
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
case ARPOP_REVREPLY:
Initial revision
1999-10-08 07:47:09 +08:00
(void)printf("rarp reply %s at %s",
make arp_print() L2 neutral. from netbsd TODO: recover portions that peep L2 src/dst, by passing more args from L2 printing to arp_print(). the current code can bomb when L2 = arcnet (because the code assumes that L2 address len == 6), for example.
2001-06-18 17:12:27 +08:00
linkaddr_string(THA(ap), HLN(ap)),
Initial revision
1999-10-08 07:47:09 +08:00
ipaddr_string(TPA(ap)));
break;
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
case ARPOP_INVREQUEST:
(void)printf("invarp who-is %s tell %s",
linkaddr_string(THA(ap), HLN(ap)),
linkaddr_string(SHA(ap), HLN(ap)));
break;
case ARPOP_INVREPLY:
(void)printf("invarp reply %s at %s",
linkaddr_string(THA(ap), HLN(ap)),
ipaddr_string(TPA(ap)));
break;
Initial revision
1999-10-08 07:47:09 +08:00
default:
(void)printf("arp-#%d", op);
Eliminate some unused parameters. Use const more. Use EXTRACT_* macros more. Use TCHECK* more. Use tok2str() to replace some home-grown workalikes. smb: - Get rid of private types, use tcpdump-defined types - Rename fdata and fdata1 to smb_fdata and smb_fdata1 to avoid conflict with IRIX library function.
2001-09-18 05:57:50 +08:00
default_print((const u_char *)ap, caplen);
Initial revision
1999-10-08 07:47:09 +08:00
return;
}
if (hrd != ARPHRD_ETHER)
printf(" hardware #%d", hrd);
Eliminate some unused parameters. Use const more. Use EXTRACT_* macros more. Use TCHECK* more. Use tok2str() to replace some home-grown workalikes. smb: - Get rid of private types, use tcpdump-defined types - Rename fdata and fdata1 to smb_fdata and smb_fdata1 to avoid conflict with IRIX library function.
2001-09-18 05:57:50 +08:00
return;
trunc:
(void)printf("[|arp]");
Initial revision
1999-10-08 07:47:09 +08:00
}
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