The static arrays are supposed to be arrays of const pointers to int,
not arrays of non-const pointers to const int.
Fixing that means some bugs (scribbling on what's *supposed* to be a
const array) will be caught (see packet-ieee80211-radiotap.c for
examples, the first of which inspired this change and the second of
which was discovered while testing compiles with this change), and
removes the need for some annoying casts.
Also make some of those arrays static while we're at it.
Update documentation and dissector-generator tools.
Change-Id: I789da5fc60aadc15797cefecfd9a9fbe9a130ccc
Reviewed-on: https://code.wireshark.org/review/37517
Petri-Dish: Guy Harris <gharris@sonic.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
true_false_strings have no helper function to properly retrieve the
string representing the true or false value, much like unit_strings,
even though this is not uncommon in dissectors.
This change introduces the helper function and modifies the dissectors,
so that they use this helper i.s.o. their own expressions.
Change-Id: I477ed2d90a9a529fc5dcfef7e3ea42ec180d27ae
Reviewed-on: https://code.wireshark.org/review/36920
Reviewed-by: Jaap Keuter <jaap.keuter@xs4all.nl>
Petri-Dish: Jaap Keuter <jaap.keuter@xs4all.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Instead of guint8* the used type looks more precise. Moreover there
is no need to use local unions in the dissectors to switch between
the actual address and address bytes.
bgp, eigrp and isis-lsp dissectors have been updated accordingly.
Change-Id: I7785fe4c12913a09bd31cd6ef26e53027646d35c
Reviewed-on: https://code.wireshark.org/review/36836
Petri-Dish: Guy Harris <gharris@sonic.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <gharris@sonic.net>
Prefer:
- html (rather than txt)
- https
Also includes the script check_dissector_urls.py,
that can be used to find links in code and test them.
Change-Id: Iafd8bb8948674a38ad5232bf5b5432ffb2b1251b
Reviewed-on: https://code.wireshark.org/review/36821
Petri-Dish: Martin Mathieson <martin.r.mathieson@googlemail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Dissect MPLS label fields for EVPN Extented Community.
RFC7432 section-8.2.1 defines only a SHOULD for ESI label set to a MPLS
label when Single-Active redundancy mode is desired.
Therefore and not break current implemntation we only add the additional
dissection of the MPLS label bits.
Bug: 16313
Change-Id: Iad2561b90aeace212f79a874efb59af917aca3f1
Reviewed-on: https://code.wireshark.org/review/35692
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Add support for BGP Tunnel Encapsulation Attribute
(draft-ietf-idr-tunnel-encaps-15) and Advertising Segment
Routing Policies in BGP (draft-ietf-idr-segment-routing-te-policy-08).
Due to missing pcap file(s) most of the Segment List Sub-TLVs
are still missing.
Bug: 16294
Change-Id: I0d7524934d5c5f2458a3f9a68e1e49c95a030c32
Reviewed-on: https://code.wireshark.org/review/35587
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Add D-PATH Attribute as described in
draft-rabadan-sajassi-bess-evpn-ipvpn-interworking
Bug: 16238
Change-Id: If40699304fca1409a195b83075dd40c6769c2df4
Reviewed-on: https://code.wireshark.org/review/35223
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Add IP version to call the right decode_prefix function.
Bug: 16144
Change-Id: I06239863b98beeef9ff80e1a8b6e13b4113fb065
Reviewed-on: https://code.wireshark.org/review/34913
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Roland Knall <rknall@gmail.com>
RFC8205 specifies the BGPsec extension. The extended Wireshark dissector
consists of:
- BGPsec Capability
a capability that holds the BGPsec version, a direction and reserved
bits.
- BGPsec_PATH
a BGP path attribute. Such a path contains Secure Path Segments and
Signature Segments.
Change-Id: Iba5e17b9139bcac378adf2bcc2dfb369064f7a08
Reviewed-on: https://code.wireshark.org/review/34639
Reviewed-by: João Valverde <j@v6e.pt>
Petri-Dish: João Valverde <j@v6e.pt>
Tested-by: Petri Dish Buildbot
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Change all wireshark.org URLs to use https.
Fix some broken links while we're at it.
Change-Id: I161bf8eeca43b8027605acea666032da86f5ea1c
Reviewed-on: https://code.wireshark.org/review/34089
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Adding support for draft-ietf-bess-evpn-igmp-mld-proxy-03
Bug: 15911
Change-Id: I42c0cf4551a7669742457691cc820a4057faf697
Reviewed-on: https://code.wireshark.org/review/33951
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
RFC7432 defines MPLS label with a fixed size and not as a stack.
Each label has 3 bytes and we only decode the first 20 bits. The
remaining four bits are not defined. Therefore we ignore it at the
moment.
Bug: 15631
Change-Id: I27e34e91facb169b804993f2d3ac9c4a181454aa
Reviewed-on: https://code.wireshark.org/review/32578
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Adding support for RFC8571 (BGP - Link State (BGP-LS)
Advertisement of IGP Traffic Engineering Performance Metric Extensions)
Change-Id: I2f0b415a1a5c3e5f0eb79a6e3758b17c5beba851
Reviewed-on: https://code.wireshark.org/review/32497
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Adding RFC8538 (Notification Support for BGP GR).
Change-Id: I3af5a008fbaa4fb288b55e2837ffeb368423d4e9
Reviewed-on: https://code.wireshark.org/review/32395
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Due to a incorrect check the details of MCAST-VPN NLRI were
never dissected. Also the Originating Router's IP Addr of a
S-PMSI A-D Route was not dissected.
Bug: 15307
Change-Id: Ic7481ed034e4cbf0dcab4aa150f05da2f5aac508
Signed-off-by: Jaap Keuter <jaap.keuter@xs4all.nl>
Reviewed-on: https://code.wireshark.org/review/30796
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Bug 13741 showed a case where the BGP dissector's failure to validate the
length of the Path Attribute record allowed a pathological BGP UPDATE packet to
generate more than one million items in the protocol tree by repeatedly
dissecting certain segments of the packet.
It's easy enough to detect when the Path Attribute length cannot be valid, so
let's do so. When the condition arises, let's raise an Expert Info error in
the same style and format as used elsewhere in the same routine, and abandon
dissection of the Path Attributes list.
With this check in place, an incorrect length computation is revealed at a
callsite. This would only have prevented a small (less than 5 bytes) Path
Attribute from being dissected if it was at the very end of the Path Attributes
list, but the bounds checking added in this change makes this problem much more
apparent, so we fix the length computation while we're here.
Testing Done: Built wireshark on Linux amd64. Using bgp.pcap from the Sample
Captures page on the wiki, verified that the dissection of the UPDATE
packets were unaltered by this fix. Using the capture attached to bug 13741
(clusterfuzz-testcase-minimized-6689222578667520.pcap), verified that the
packet no longer triggers the "too many items" exception, instead we see
an Expert Info for each oversized Path Attribute length, and eventually an
exception for "length of contained item exceeds length of containing item".
30,000 iterations of fuzz test with bgp.pcap as input, and many iterations
of randpkt-test too. Crafted a packet with a 3-byte ATOMIC_AGGREGATE Path
Attribute at the end of the Path Attributes list; Before this change, an
exception is raised during dissection, but after this change it is dissected
correctly.
Bug: 13741
Change-Id: I80f506b114a61e5b060d93b59bed6b94fb188b3e
Reviewed-on: https://code.wireshark.org/review/27466
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
https://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtmlhttps://tools.ietf.org/html/rfc4893
-------------------------------------------
NEW BGP speakers carry AS path information expressed in terms of 4-
octet Autonomous Systems numbers by using the existing AS_PATH
attribute, except that each AS number in this attribute is encoded
not as a 2-octet, but as a 4-octet entity. The same applies to the
AGGREGATOR attribute - NEW BGP speakers use the same attribute,
except that the AS carried in this attribute is encoded as a 4-octet
entity.
-------------------------------------------
Change-Id: I4ccfc2c18e8777a800211dd285550723ac0da872
Reviewed-on: https://code.wireshark.org/review/26647
Petri-Dish: Graham Bloice <graham.bloice@trihedral.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
NLRIs can contain path identifiers as defined in RFC7911.
This commit adopts the IPv4 heuristic to IPv6 to detect usage
of additional path identifier.
Bug: 14241
Change-Id: I6b99c079b12d1f9a3e05b152a5540a621076e965
Reviewed-on: https://code.wireshark.org/review/26157
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
AS23456 is reserved in RFC6793 for 32-bit AS number range as AS_TRANS.
Add an additional text "(AS_TRANS)" to AS 23456 items.
Bug: 14305
Change-Id: I1a0ea9e07c74b7e409cb32e2da55dbf233a2348d
Reviewed-on: https://code.wireshark.org/review/25172
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
According to RFC 5492 [1], paragraph 5, Data field of BGP
notification for Open message error/unsupported capability must
list the set of unsupported capabilities
Bug: 14274
Change-Id: Iacd33b5c83bc234652d2a5444f0029640d33e1c5
Reviewed-on: https://code.wireshark.org/review/24829
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Bug: 14200
Change-Id: I6d8ac6aae952db21e69fa323fb1e74782d95d1c4
Reviewed-on: https://code.wireshark.org/review/24362
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Michael Mann <mmann78@netscape.net>
Bug: 14241
Change-Id: I5e66b034cf5cd14e2557e5b7bfa3045c2232d1ae
Reviewed-on: https://code.wireshark.org/review/24553
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Roland Knall <rknall@gmail.com>
Display LACP Port Key/root Bridge Priority in Dec and Hex
mSTP => MSTP
Change-Id: I7079250da134e4bb60d2d5373bfdf2f31235f07a
Ping-Bug: 14200
Reviewed-on: https://code.wireshark.org/review/24401
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Michael Mann <mmann78@netscape.net>
That allows a parallel typedef of ws_in4_addr for guint32.
Change-Id: I03b230247065e0e3840eb87635315a8e523ef562
Reviewed-on: https://code.wireshark.org/review/24073
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Passing multiple labels information with BGP has come to be used
together with segment routing.
Change-Id: Ifd45eb0a875ed4a166e44441955e5e42ce84a7ca
Reviewed-on: https://code.wireshark.org/review/22944
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Issue reported by Kura
Bug: 13872
Change-Id: I054839a9e141fa4a882114b150842366c090d012
Reviewed-on: https://code.wireshark.org/review/22537
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Bug: 12296
Change-Id: Ib49396e2822f6ee0082aedd39ed8636379bbd75a
Reviewed-on: https://code.wireshark.org/review/21726
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Guy Harris