Commit Graph

83 Commits

Author SHA1 Message Date
hannes
a4ae930d9f fix compiler padding issue: struct cisco_slarp should be 18 bytes instead of 20 2005-04-07 23:07:33 +00:00
mcr
4189fb7df6 refactored ip_print() so that chained header parser (ESP/AH) can
more easily call the inner parts.
2005-04-06 21:32:38 +00:00
guy
d3d90f29e5 Add bounds checking. 2004-03-24 00:41:13 +00:00
guy
bbc1cfa669 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 09:36:07 +00:00
guy
3824a6c041 From Neil Spring:
use "_U_" in the definitions of "rcsid[]", to eliminate
	complaints about those variables being unused;

	move the definitions after the include of "interface.h", or add
	an include of "interface.h", so that "_U_" is defined.

Include "config.h" before including "tcpdump-stdinc.h" in
"missing/datalinks.c".
2003-11-15 00:39:12 +00:00
hannes
8f94d68a09 don't pass on src & dst MAC adresses to the isoclns decoder as MAC adresses
should be really printed in ether_print() using the eflag
2003-05-22 16:52:36 +00:00
guy
4bec97f457 Hoist a bunch of stuff that should be done by all if_print routines into
tcpdump.c.  Have if_print routines return the length of the link-layer
header, so that the common code knows how to skip the link-layer header
when printing the packet in hex/ASCII.
2002-12-19 09:39:10 +00:00
guy
cfabfb053b 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 09:41:13 +00:00
guy
e070cf232f We no longer use "packetp" for anything, so eliminate it. (If any
dissector really needs source and destination MAC addresses, we should
make global pointers to them - which would be null for packets lacking
MAC addresses, so dissectors that need them will need to do something
sensible if those pointers are null.)

Don't fake up an Ethernet header if there aren't any MAC addresses to
use when faking it up.

"bp_chaddr" in "print-bootp.c" is an array, so "bp->bp_chaddr" cannot be
null, and there's no need to test for it not being null.
2002-12-18 08:53:18 +00:00
guy
fcc82f451d 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 07:13:49 +00:00
hannes
676b2ceedb more robust checking of cisco fudge byte for OSI packets 2002-12-04 19:06:50 +00:00
itojun
10afb02ac8 put __attribute__((packed)) to packet headers. s/u_short/u_int16_t/ and so
forth while i'm here
2002-11-09 17:19:16 +00:00
hannes
fff180e074 MPLS support for CHDLC 2002-10-18 20:08:34 +00:00
hannes
2789e49986 more verbose printing for unknown SLARP options, misc. cleanups 2002-10-06 16:35:45 +00:00
hannes
f08624e03c support for C-HDLC ISO fudge byte 2002-10-04 08:15:35 +00:00
hannes
fce84474a7 be more verbose about unknown protocols in CHDLC 2002-09-23 11:18:08 +00:00
hannes
c7a6e750ac pass correct pointer to the isoclns_print() 2002-09-20 10:02:42 +00:00
hannes
72f3eb3b58 support for decoding IS-IS inside Cisco HDLC Frames 2002-09-11 22:15:16 +00:00
guy
c422d3ab0f Get rid of the "-Wno-unused" flag, and fix up most of the
unused-parameter problems reported by GCC.  Add an _U_ tag to label
parameters as unused if the function is called through a pointer (so
that you can't change its signature by removing parameters) or if there
are unused parameters only because the function isn't complete.

Add some additional bounds checks the necessity for which was revealed
while cleaning up unused-parameter problems.

Make some routines static.

"lcp_print()", defined in "print-lcp.c", isn't called anywhere -
"print-ppp.c" has the code to dissect LCP.  Get rid of "print-lcp.c".
2002-09-05 21:25:34 +00:00
risso
3d932490b8 Added support for Win32, based on WinPcap. 2002-08-01 08:52:55 +00:00
fenner
c672f00276 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.
2001-09-17 21:57:50 +00:00
guy
176a3e4986 Put the infodelay wrapping into the remaining "XXX_if_print()" routines.
Split the Cisco HDLC printer into "chdlc_if_print()", which does the
stuff expected of a low-level print routine (printing the time stamp,
printing the final newline, doing the infodelay stuff) and
"chdlc_print()", which doesn't do that stuff.  This lets us clean up
"ppp_hdlc_if_print()" a bit - it can just print the time stamp at the
beginning, and do the infodelay stuff at the end, without having to
treat Cisco HDLC specially by skipping the time stamp printing.  (This
also ensures that the time stamp is always printed, which wasn't the
case before.)

Print the missing final newline in "pppoe_if_print()".
2001-07-05 18:54:13 +00:00
guy
f685a42c3d Pull the "linux-include" versions of "slip.h" and "slcompress.h" up to
the top-level directory, remove from them all stuff not needed by
tcpdump, include them rather than the system's header files, and get rid
of assorted unnecessary include files.

This means you don't need to check for "slip.h" when building
"print-sl.c", stubbing it out on systems that don't have "slip.h".  We
also don't need to build the stuff in "print-vjc.c" only on BSD/OS.

Use "u_int32_t" and "u_int16_t" rather than "u_int" and "u_short" for
structure members in "print-chdlc.c".

Move PPP_HDRLEN from "print-ppp.c" to "ppp.h", as per the XXX comment in
"print-ppp.c".
2000-10-09 01:53:19 +00:00
guy
5bca6d30f4 Don't use "long" in structures that represent packet layouts - "long"
isn't necessarily 32 bits.

Use unsigned data types for unsigned values.
2000-09-29 05:33:48 +00:00
guy
cf53dc05f1 Get rid of includes of <netinet/in_systm.h>, and replace "n_short",
"n_long", and "n_time", defined in that file, with other types.
2000-09-29 04:58:33 +00:00
guy
8b67f77134 Get rid of unneeded includes of <net/if.h>. 2000-09-28 06:42:55 +00:00
guy
536f512583 Add an "ip.h" header, to declare the IP stuff needed by dissectors, and
have dissectors include them rather than <netinet/ip.h> or
<netinet/ip_var.h>, if they actually need that stuff.

Put the declarations of the ICMP stuff directly into "print-icmp.c".

Remove all unnecessary includes of <netinet/ip*.h> files.

Copy the byte-order stuff from "nameser.h" into "tcp.h".
2000-09-23 08:54:24 +00:00
guy
e894092542 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 08:03:27 +00:00
guy
6bd49d02af Add support for NetBSD DLT_PPP_SERIAL (PPP in HDLC-like framing, as per
RFC 1662, or Cisco point-to-point with HDLC framing, as per seciont
4.3.1 of RFC 1547; there's always an address and control octet at the
beginning of these packets, but they're not necessarily 0xff 0x03),
which we map to PCAP_ENCAP_PPP_HDLC.
2000-09-18 05:11:43 +00:00
assar
3cd171317f remove non-STDC code 2000-07-01 03:38:59 +00:00
itojun
c9c414df15 style. s/switch(/switch (/. 2000-04-24 12:59:39 +00:00
fenner
b9ac23ce92 Switch to config.h instead of passing defines in DEFS. 1999-11-21 09:36:43 +00:00
itojun
c9d84d15c5 Bring in KAME IPv6 tcpdump. replaces esp/ah/isakmp decoder.
Hope I did not break anything.  Portability on IPv4-only node needs checking,
I'll do this very soon.  (sorry for rather jumbo commit)

XXx what is _FAVOR_BSD?
1999-10-30 05:11:06 +00:00