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tcpdump/print-lane.c

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print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
/*
whitespace cleanup
2002-06-12 01:08:37 +08:00
* Marko Kiiskila carnil@cs.tut.fi
*
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
* Tampere University of Technology - Telecommunications Laboratory
*
* Permission to use, copy, modify and distribute this
* software and its documentation is hereby granted,
* provided that both the copyright notice and this
* permission notice appear in all copies of the software,
* derivative works or modified versions, and any portions
* thereof, that both notices appear in supporting
* documentation, and that the use of this software is
* acknowledged in any publications resulting from using
* the software.
whitespace cleanup
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*
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
* TUT ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION AND DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS
* SOFTWARE.
whitespace cleanup
2002-06-12 01:08:37 +08:00
*
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
*/
Move the printer summaries from INSTALL.txt to each printer with the tag '\summary:' for greping. Remark: Currently some printers have no summary line. Moreover: Summarize all printers with a single line in INSTALL.txt
2016-08-14 21:42:19 +08:00
/* \summary: ATM LANE printer */
Always include <config.h> rather than "config.h". This can prevent bizarre failures if, for example, you've done a configuration in the top-level source directory, leaving behind one config.h file, and then do an out-of-tree build in another directory, with different configuration options. This way, we always pick up the same config.h, in the build directory.
2018-01-22 04:27:08 +08:00
#include <config.h>
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
Use quoted include netdissect-stdinc.h instead of angle-bracketed one
2018-01-20 22:59:49 +08:00
#include "netdissect-stdinc.h"
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
ATM LANE: Remove a redundant bounds check and add a bounds check Moreover: Define ND_LONGJMP_FROM_TCHECK. Update a comment. Fix indentation.
2020-10-25 23:03:49 +08:00
#define ND_LONGJMP_FROM_TCHECK
Printers must include 'netdissect.h', not 'interface.h'
2015-09-06 05:35:58 +08:00
#include "netdissect.h"
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
#include "extract.h"
Pull a bunch of headers into the only source file that includes them. For headers included in only one source file, put the header contents in the source file in question, and get rid of a bunch of stuff from the header not used in the source file.
2013-12-31 14:52:15 +08:00
struct lecdatahdr_8023 {
Use nd_ types, add EXTRACT_ calls.
2017-12-31 07:22:16 +08:00
nd_uint16_t le_header;
Speak of MAC-48s rather than MAC or Ethernet addresses. Not all MAC-48s are Ethernet addresses; a lot of them are IEEE 802.11 addresses, for example. Use the IEEE term.
2023-07-14 15:27:39 +08:00
nd_mac48 h_dest;
nd_mac48 h_source;
Use nd_ types, add EXTRACT_ calls.
2017-12-31 07:22:16 +08:00
nd_uint16_t h_type;
Pull a bunch of headers into the only source file that includes them. For headers included in only one source file, put the header contents in the source file in question, and get rid of a bunch of stuff from the header not used in the source file.
2013-12-31 14:52:15 +08:00
};
struct lane_controlhdr {
Use nd_ types, add EXTRACT_ calls.
2017-12-31 07:22:16 +08:00
nd_uint16_t lec_header;
nd_uint8_t lec_proto;
nd_uint8_t lec_vers;
nd_uint16_t lec_opcode;
Pull a bunch of headers into the only source file that includes them. For headers included in only one source file, put the header contents in the source file in question, and get rid of a bunch of stuff from the header not used in the source file.
2013-12-31 14:52:15 +08:00
};
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +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 const struct tok lecop2str[] = {
{ 0x0001, "configure request" },
{ 0x0101, "configure response" },
{ 0x0002, "join request" },
{ 0x0102, "join response" },
{ 0x0003, "ready query" },
{ 0x0103, "ready indication" },
{ 0x0004, "register request" },
{ 0x0104, "register response" },
{ 0x0005, "unregister request" },
{ 0x0105, "unregister response" },
{ 0x0006, "ARP request" },
{ 0x0106, "ARP response" },
{ 0x0007, "flush request" },
{ 0x0107, "flush response" },
{ 0x0008, "NARP request" },
{ 0x0009, "topology request" },
{ 0, NULL }
};
Process VLAN frames and Alteon jumbo frames in the Ethernet printer. Instead of having the Ethernet-type handler process the VLAN and Alteon jumbo frame Ethernet type values, process them in the Ethernet (and Linux cooked-mode) dissectors. This makes it easier for the right MAC addresses to be printed for those packets. As part of that, rename ether_encap_print() to ethertype_print() - it doesn't print encapsulated Ethernet frames, it prints payloads whose packet type is indicated by an Ethernet type field value - and remove the no-longer-needed "extracted Ethernet type" argument. That also lets us eliminate it from the SNAP print routine. Make ether_print() take a function, and an argument to pass to that function, as parameters, so that, for example, the ATM LANE printer can use it and put the LEC ID into the link-layer headeer printout.
2010-02-22 04:44:53 +08:00
static void
reworked print-ether to use netdissect
2010-10-08 02:36:49 +08:00
lane_hdr_print(netdissect_options *ndo, const u_char *bp)
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
{
Use the new GET_ macros instead of the EXTRACT_ ones The exceptions are currently: Some EXTRACT_ in print-juniper.c, not used on packet buffer pointer. An EXTRACT_BE_U_3 in addrtoname.c, not always used on packet buffer pointer.
2018-06-16 23:23:21 +08:00
ND_PRINT("lecid:%x ", GET_BE_U_2(bp));
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +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
* This assumes 802.3, not 802.5, LAN emulation.
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
*/
void
NDOize 5 more decoders Update Apple's IP over IEEE1394, Bluetooth, CALM/FAST, IPv6 fragments and LAN emulation decoders. Remove some stray passages while at it.
2014-03-07 21:52:45 +08:00
lane_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
{
Fix a bunch of de-constifications.
2015-04-27 08:24:42 +08:00
const struct lane_controlhdr *lec;
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
Add the ndo_protocol field in the netdissect_options structure Update this field in printer entry functions. It will be used for some printings.
2018-03-14 23:54:17 +08:00
ndo->ndo_protocol = "lane";
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
Fix a bunch of de-constifications.
2015-04-27 08:24:42 +08:00
lec = (const struct lane_controlhdr *)p;
Use the new GET_ macros instead of the EXTRACT_ ones The exceptions are currently: Some EXTRACT_ in print-juniper.c, not used on packet buffer pointer. An EXTRACT_BE_U_3 in addrtoname.c, not always used on packet buffer pointer.
2018-06-16 23:23:21 +08:00
if (GET_BE_U_2(lec->lec_header) == 0xff00) {
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
/*
* LE Control.
*/
Update ND_PRINT() as a variadic macro
2018-01-07 18:47:30 +08:00
ND_PRINT("lec: proto %x vers %x %s",
ATM LANE: Remove a redundant bounds check and add a bounds check Moreover: Define ND_LONGJMP_FROM_TCHECK. Update a comment. Fix indentation.
2020-10-25 23:03:49 +08:00
GET_U_1(lec->lec_proto),
GET_U_1(lec->lec_vers),
tok2str(lecop2str, "opcode-#%u", GET_BE_U_2(lec->lec_opcode)));
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
return;
}
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
Add a new routine "default_print_packet()", which takes a pointer to the beginning of the raw packet data, the captured length of the raw packet data, and the length of the link-layer header, and: if "-e" was specified, prints all the raw packet data; if "-e" was not specified, prints all the raw packet data past the link-layer header, if there is any. Use that routine in all the "xxx_if_print()" routines if "-x" was specified. Make "arcnet_encap_print()" static - it's not used outside "print-arcnet.c". Add missing info printing code to "atm_if_print()". Print the packet data in "lane_if_print()", not in "lane_print()", as "lane_print()" can be called from other "xxx_if_print()" routines, and those routines will also print the packet data if "-x" was specified - no need to print it twice.
2002-12-18 17:41:13 +08:00
/*
Process VLAN frames and Alteon jumbo frames in the Ethernet printer. Instead of having the Ethernet-type handler process the VLAN and Alteon jumbo frame Ethernet type values, process them in the Ethernet (and Linux cooked-mode) dissectors. This makes it easier for the right MAC addresses to be printed for those packets. As part of that, rename ether_encap_print() to ethertype_print() - it doesn't print encapsulated Ethernet frames, it prints payloads whose packet type is indicated by an Ethernet type field value - and remove the no-longer-needed "extracted Ethernet type" argument. That also lets us eliminate it from the SNAP print routine. Make ether_print() take a function, and an argument to pass to that function, as parameters, so that, for example, the ATM LANE printer can use it and put the LEC ID into the link-layer headeer printout.
2010-02-22 04:44:53 +08:00
* Go past the LE header.
Add a new routine "default_print_packet()", which takes a pointer to the beginning of the raw packet data, the captured length of the raw packet data, and the length of the link-layer header, and: if "-e" was specified, prints all the raw packet data; if "-e" was not specified, prints all the raw packet data past the link-layer header, if there is any. Use that routine in all the "xxx_if_print()" routines if "-x" was specified. Make "arcnet_encap_print()" static - it's not used outside "print-arcnet.c". Add missing info printing code to "atm_if_print()". Print the packet data in "lane_if_print()", not in "lane_print()", as "lane_print()" can be called from other "xxx_if_print()" routines, and those routines will also print the packet data if "-x" was specified - no need to print it twice.
2002-12-18 17:41:13 +08:00
*/
ATM LANE: Remove a redundant bounds check and add a bounds check Moreover: Define ND_LONGJMP_FROM_TCHECK. Update a comment. Fix indentation.
2020-10-25 23:03:49 +08:00
ND_TCHECK_2(p); /* Needed */
Process VLAN frames and Alteon jumbo frames in the Ethernet printer. Instead of having the Ethernet-type handler process the VLAN and Alteon jumbo frame Ethernet type values, process them in the Ethernet (and Linux cooked-mode) dissectors. This makes it easier for the right MAC addresses to be printed for those packets. As part of that, rename ether_encap_print() to ethertype_print() - it doesn't print encapsulated Ethernet frames, it prints payloads whose packet type is indicated by an Ethernet type field value - and remove the no-longer-needed "extracted Ethernet type" argument. That also lets us eliminate it from the SNAP print routine. Make ether_print() take a function, and an argument to pass to that function, as parameters, so that, for example, the ATM LANE printer can use it and put the LEC ID into the link-layer headeer printout.
2010-02-22 04:44:53 +08:00
length -= 2;
caplen -= 2;
p += 2;
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
/*
Process VLAN frames and Alteon jumbo frames in the Ethernet printer. Instead of having the Ethernet-type handler process the VLAN and Alteon jumbo frame Ethernet type values, process them in the Ethernet (and Linux cooked-mode) dissectors. This makes it easier for the right MAC addresses to be printed for those packets. As part of that, rename ether_encap_print() to ethertype_print() - it doesn't print encapsulated Ethernet frames, it prints payloads whose packet type is indicated by an Ethernet type field value - and remove the no-longer-needed "extracted Ethernet type" argument. That also lets us eliminate it from the SNAP print routine. Make ether_print() take a function, and an argument to pass to that function, as parameters, so that, for example, the ATM LANE printer can use it and put the LEC ID into the link-layer headeer printout.
2010-02-22 04:44:53 +08:00
* Now print the encapsulated frame, under the assumption
* that it's an Ethernet frame.
print of ATM LanEmulation. From Marko Kiiskila <carnil@cs.tut.fi> by way of <kuznet@ms2.inr.ac.ru>
1999-11-21 11:52:11 +08:00
*/
Rework "Update more link-layer dissectors to void functions" It's a follow-up to commit 81dbf4a0b05092760d0ff0cdd48c692e4769ba99. There is no need to update ether_print(), ether_common_print() and ether_switch_tag_print() to void functions: back to u_int functions. There is also no need to add a flag parameter to ether_print(), ether_common_print() and ether_switch_tag_print(): Remove it.
2020-08-01 20:05:59 +08:00
ether_print(ndo, p, length, caplen, lane_hdr_print, p - 2);
Add SunATM support, based on code from Yen Yen Lim at North Dakota State University.
2002-07-11 17:17:21 +08:00
}
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