summaryrefslogtreecommitdiffstats
path: root/usr.sbin/tcpdump/print-gtp.c (follow)
Commit message (Collapse)AuthorAgeFilesLines
* Fix parsing GTP packets with invalid extended headers.jca2020-10-261-1/+6
| | | | | | | In GTP a zero extended header length is invalid, deal with this instead of looping forever. Report and fix by Peter J. Philipp, tweaked by me, ok kn@
* properly pass the number of strings in an array to gtp_print_str.dlg2020-05-201-10/+17
| | | | from miod
* Remove #ifdef INET6kn2018-10-221-17/+1
| | | | | | | | | | | | There's not reason to build without IPv6 support, `-U INET6' builds were broken anyway. Fix an empty redefine for IPPROTO_IPV6 in print-ip.c while here. No object change on amd64 and sparc64 with clang, gcc compiles differently but behaviour stays the same. OK denis deraadt
* Rework UDP parsing, particularly around IP addresses.dlg2018-07-061-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This originally started as trying to put a consistent space between the UDP header information and the payload parsing, but while doing that I noticed inconsistent IPv4 vs IPv6 handling. Apart from the default "srcip.srcport > dstip.dstpor" output, all the other places that IP addresses were printed assumed IPv4. It looks like it is possible that udp_print() can be called without an IP header, which made these blind IPv4 prints turn into NULL derefs. This fixes the problem above by only having a single place that prints the addresses out, and makes sure to get the difference between IPv4, IPv6 and no IP correct. This changes how the checksum is calculated. It incrementally builds the UDP checksum by feeding the IPv4 and v6 addresses in separately, then using common code for the rest of the pseudo header and actual payload. Lastly, this does make printing the space between the UDP header and its payload consistent. The UDP code is now responsible for adding a space after itself so the payload parsers don't have to. They got it wrong in some cases anyway, so this should be a lot more uniform. help and ok sthen@
* assign pointers to NULL rather than 0mmcc2015-12-221-2/+2
|
* Remove remaining instances of the register keyword.mmcc2015-11-161-27/+27
| | | | ok deraadt@
* Replace <sys/param.h> with <limits.h> and other less dirty headers wherederaadt2015-01-161-2/+1
| | | | | | | | | possible. Annotate <sys/param.h> lines with their current reasons. Switch to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1, LOGIN_NAME_MAX, etc. Change MIN() and MAX() to local definitions of MINIMUM() and MAXIMUM() where sensible to avoid pulling in the pollution. These are the files confirmed through binary verification. ok guenther, millert, doug (helped with the verification protocol)
* No use for <netinet/in_systm.h> nor <netinet/tcpip.h>.mpi2014-08-141-2/+1
|
* Fix whitespace.jsing2011-09-181-11/+11
|
* Avoid potential 64-bit unaligned access on strict alignment architectures.jsing2011-09-181-2/+4
| | | | Spotted by and ok naddy@
* Correctly decode and print access point names.jsing2010-08-191-21/+41
|
* Fix a usage of logical and where binary and was intended.jsg2010-08-031-2/+2
| | | | Spotted by Mike Belopuhov. ok jsing@ deraadt@
* Add support to tcpdump for decoding the GPRS Tunnelling Protocol (GTP),jsing2009-11-041-0/+1800
used to carry GPRS data over IP for GSM and UMTS networks. The decoder understands GTPv0, GTPv0', GTPv1-C, GTPv1-U and GTPv1' traffic, however at this stage not all TLV fields are fully decoded. This work has been kindly sponsored by SystemNet AS (www.systemnet.no). "commit" deraadt@
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.