Specifically: Replace FALSE|0 and TRUE|1 by ENC_BIG_ENDIAN|ENC_LITTLE_ENDIAN as
the encoding parameter for proto_tree_add_item() calls which directly reference
an item in hf[] which has a type of:
FT_BOOLEAN
FT_IPv4
FT_EUI64
FT_GUID
FT_UINT_STRING
Also: For type FT_ITv6 use ENC_NA. (This was missed in SVN #39260)
svn path=/trunk/; revision=39328
Specifically: Replace FALSE|0 and TRUE|1 by ENC_BIG_ENDIAN|ENC_LITTLE_ENDIAN as
the encoding parameter for proto_tree_add_item() calls which directly reference
an item in hf[] which has a type of:
FT_UINT8
FT_UINT16
FT_UINT24
FT_UINT32
FT_UINT64
FT_INT8
FT_INT16
FT_INT24
FT_INT32
FT_INT64
FT_FLOAT
FT_DOUBLE
svn path=/trunk/; revision=39288
keys to have _uint in their names, to match the routines that handle
dissector tables with string keys. (Using _port can confuse people into
thinking they're intended solely for use with TCP/UDP/etc. ports when,
in fact, they work better for things such as Ethernet types, where the
binding of particular values to particular protocols are a lot
stronger.)
svn path=/trunk/; revision=35224
The attached patch improves NHRP dissection and encompasses the following
changes:
1) Now displays Request ID and CIE Reply code or Error code in Info column.
2) Added support for RFC 2520 and RFC 2735 extensions and error codes.
References:
-> http://www.ietf.org/rfc/rfc2520.txt?number=2520
-> http://www.ietf.org/rfc/rfc2735.txt?number=2735
Note: Cisco's NAT Address Extension conflicts with RFC 2735's published
Device Capabilities Extension. Both are assigned type 9. As such, I have had
to add some heuristics to differentiate between them. It should be reliable
though since the former carries a CIE with length > 8 bytes, and the latter a
fixed-length payload of 8 bytes.
3) A few fields previously not filterable now are: hf_nhrp_hdr_op_type,
hf_nhrp_hdr_version and hf_nhrp_error_code.
4) Added support for authentication and vendor-private extension header decode.
NOTE: The authentication extension has been added according to RFC 2332. In
practice, it seems that at least with certain Cisco equipment (I tested with
cisco 2851 IOS version 12.4(15)T), they use their own non-standard
authentication extension format. Because of this, Cisco's version of the
extension will likely either be displayed a little differently than one may
expect or be indicated as being mal-formed ... because in reality, it is.
5) Utilizes expert info in a couple more places to indicate mal-formed packets.
Cisco's Error Indication packet, for example, violates RFC 2332 Section 5.2.7
by including extensions in the Error Indication packet as well as by including
erroneous data following the End Extension. Both cases are reported via expert
info now. Previously, at least with the case of the erroneous data following
the End Extension, the packet would almost certainly have been marked
mal-formed anyway. I now just prevent Wireshark from even attempting to decode
the non-sensical mess.
svn path=/trunk/; revision=29833
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
An NHRP extension offset of 0 is not an error - it means there are no
extensions.
Start using the address family number to determine the type of
link-layer addresses in NHRP. Don't fetch IPv4 addresses and add them
to the tree - just use proto_tree_add_item().
svn path=/trunk/; revision=28286
a trailer.
Clean up the NHRP dissector's handling of the protocol ID to fully
implement RFC 2332 (and mention that 2332 is the RFC for NHRP). Don't
compute the checksum unless we have all the packet data, and don't use
the captured length as the actual packet length. Check for an invalid
extension offset value. Get rid of some unneeded
tvb_ensure_bytes_exist() calls. Dissect - and set the columns -
regardless of whether we're building the protocol tree. Mark the packet
in error reports as an error packet.
svn path=/trunk/; revision=28273
Patch to do the following:
1) Dissect CIE Lists in NHRP Extensions
2) Dissect original NHRP packet in Error Indication
3) Support for Cisco NAT extensions
4) Support for Cisco NHRP Traffic Indication packet
svn path=/trunk/; revision=23587
- if offset is 0, tvb_length is the same as tvb_length_remaining, just faster.
Replace
- col_append_fstr() with faster col_append_str()
- col_add_str() with col_set_str()
when it's safe
svn path=/trunk/; revision=23252
Chris Maynard