mrouted v4.6

This release is a major refactor of the internal timer and socket handling, it also contains a major speedup of the peering of DVMRP routers at startup.

Fixes

• Issue #56: ensure group timers are stopped when stopping interfaces
• Issue #56: replace homegrown timer and socket handling with pev v2.0. The existing timer implementation was too imprecise and jittered several seconds between query intervals
• Issue #64: fix compiler warnings when building with 64-bit time_t targeting 32-bit platforms (only affects logging and status output)
• Fix mroutectl show routes, locally connected routes never expire
• Skip timeout of subordinates at startup
• Minor compiler warnings on non-Linux systems

Changes

• Check interface status and update internal state on more error codes instead of logging sendto() or sendmsg() failure
• Revert change in TIMER_INTERVAL from v4.0, 4159022, update interval is now 5 seconds instead of 2
• Removed internal log rate limiter, demystifies behavior and greatly simplifies the code
• Log interface names with their assigned VIF number to ease debugging
• Speed up peering by sending route reports as soon as one-way peering has been established
• Updates to logging, clarifying source 0.0.0.0 of routes as "us", and add logging when adding and discarding groups to/from interfaces
• Use (S, G) format for all logging
• Silence bogus Failed MRT_DEL_MFC warnings for routes never added to the MRIB due to missing reverse path

mrouted v4.5

Fixes

• Ignore IGMP proxy querys (src ip: 0.0.0.0), they must never win a
  querier election.
• Fix compat read location and new location for mrouted.genid
• Fix "non-decreasing" generation id, must increment on each restart

Changes

• Add support for configurable IGMP query response interval
• Add support for configurable IGMP querier timeout
• New join-group <group> phyint option for cases where an IGMP
  snooping switch blocks flooding of multicast to the port where
  mrouted is connected
• On startup and reconf, log why we skip disabled interfaces
• Change to always log when assuming the IGMP querier role

mrouted v4.4

Changes

• Rename tunnel vifs, from base interface, to use the Linux kernel
  naming; dvmrpN, where N is the VIF number. Other kernels may
  handle this differently, patches to support other nomenclatures are
  most welcome!
• Logging to stdout now always prefixes messages with the daemon ident
• If adding a tunnel VIF and Linux does not have ipip.ko loaded,
  mrouted logs this as a warning message
• Add test for IPIP tunnels
• Add Docker container image, see https://ghcr.io/troglobit/mrouted
• Update mping testing tool to v1.6 (internal)
• Refactored linked-list handling in unicast route engine (internal)
• Drop experimental RSRR feature. It is very likely unused these days,
  seeing as the draft memo never made it into widespread use. It is
  also not working properly with multiple instances of mrouted

Fixes

• Issue #52: IP-IP tunnels don't work anymore. Somewhere in the big
  refactor for the mrouted v4.x series, the tunnel directive in the
  .conf parser was never adapted to the new internals
• Fix a 10 year old regression after a linked-list refactor, causing
  off-by-one (loss of one) in unicast route distribution. Which in
  turn cause VIF tunnels to malfunction

Packages for Debian 10, or later, and compatible Ubuntu releases, available at https://deb.troglobit.com/

mrouted v4.3

Changes

• Add support for -i,--ident=NAME to change identity of an instance
• Add support for -p,--pidfile=FILE to override default PID file
• Touch PID file at SIGHUP to acknowledge done reloading .conf file
• Add support for -t,--table-id=ID, multicast routing tables (Linux)
• Add support for -u,--ipc=FILE to override /var/run/mrouted.sock
  file, used for communication with mroutectl

Fixes

• Fix segfault when parsing phyint lines in .conf file interface
  cannot be found, e.g., phyint eth1 static-group 225.1.2.5
• Prevent cascading warnings when phyint interface names cannot be found

Packages for Debian 10, or later, and compatible Ubuntu releases, available at https://deb.troglobit.com/

mrouted v4.2

Major bug fix and feature release. Support for static routes and improved configuration support for IGMP.

Changes

• Support for controlling IGMP Last Member Query Count using the igmp-robustness setting in mrouted.conf, default 2
• Support for tuning the IGMP Last Member Query Interval using a new setting igmp-query-last-member-interval <1-1024>. Issue #44
• Support for static multicast routing (*,G), similar to SMCRoute. New phyint static-group GROUP setting in mrouted.conf, multiple
  statements supported, but no ranges (yet). Issue #31
• Proper tracking of lower-version host members (IGMP), when a lower version host is detected for a group, a timer is set according to
  RFC3376, and while in this compat mode higher-version IGMP is not allowed to change state. E.g., in IGMPv1 compat, IGMPv2 LEAVE is
  ignored for the group, similar to the phyint being in igmpv1 mode
• Allow IGMP reports from source address 0.0.0.0, required as per RFC3376, sec. 4.2.13, not supported until now. This should greatly
  improve interop with IGMP snooping switches and DHCP clients that have not yet received a lease
• Improved support for running mroutectl under watch(1). No more artifacts due to unknown ANSI escape sequences to probe width
• Delayed PID file creation until after initial startup delay, there is nobody home until after that delay, so no point in announcing
  availability until after that

Fixes

• Issue #43: IGMPv3 membership reports were parsed incorrectly. The problem affects users that use source specific multicast join, i.e., (S,G) join/leave using IGMPv3. Support for IGMPv3 was introduced in mrouted v4.0
• Issue #46: Malformed group-specific IGMP query. The IGMP header no longer had the group field set, despite the query being addressed to
  a specific group. Regression introduced in[v4.0
• Issue #47: The optional phyint flag igmpv3 did not work.
• Fix buffer overrun in descriptor poll() handling
• Fix double-close on SIGHUP, Linux systems only
• Various non-critical memory leak fixes, critical for no-MMU systems

Packages for Debian 10, or later, and compatible Ubuntu releases, available at https://deb.troglobit.com/

mrouted v4.1

Minor feature and bug fix release.

Changes

• Issue #40: Automatically detect and add altnet to interfaces with multiple addresses, possible thanks to work on #36
• Reduce number of exposed aliases to debug sub-systems in online help text and man page. Only primary name, as of mrouted v3.9-beta3
• Removed noisy timer sub-system from -d all, use -d all, timer
• Document a lot of mrouted.conf options available in this version of mrouted since before v3.9, but not in the OpenBSD, based on v3.8:
  • prune-lifetime
  • rexmit-prunes
  • phyint and tunnel interface flags:
    - advert-metric
    - allow-nonpruners
    - blaster
    - force-leaf
    - noflood
    • passive
      • prune-lifetime
      • rexmit-prunes
  • The tunnel option beside off
  • Router filtering options with accept, deny, and notransit

Fixes

• Fix update of mrouted.genid on SIGHUP and reboot. mrouted replaced contents with the value zero (0), causing a zero genid in DVMRP as well, which likely caused peering issues with some implementations
• Fix build warning on Clang 3.4.1 (FreeBSD 10.3)
• Workaround for older autoconf without --runstatedir support
• Fix double free in pidfile()
• Fix #35: Cannot disable multicast routing in kernel: Permission denied when starting up.
• Fix #36: Refactor interface probing and bringup. Fixes issue with the no phyint config option not working, introduced in v4.0
• Fix #37: Fix bad path for mrouted.genid, should be in /var/lib/misc on Linux and /var/db on *BSD
• Fix #38: Document and improve error message when running out of IGMP groups on Linux. When running with many interfaces
• Fix #40: Detect and warn if multicast ingresses an unknown vif

Packages for Debian 10, and compatible Ubuntu releases, available at https://deb.troglobit.com/

mrouted v4.0

Major release with full IGMPv3 (ASM) support and a new mroutectl tool.

Note: command line options have been changed!

Changes

• Support for IGMPv3, both sending queries and accepting membership reports, issue #16

• Support for configurable IGMP query interval, issue #26

• Support for configurable IGMP robustness variable, issue #27

• Incompatible command line option refactor

• New directive in mrouted.conf: no phyint, reverses the default behavior of mrouted. Interfaces can then selectively be enabled

    no phyint
    phyint eth1 enable
    phyint eth2 enable
  

• Support for disabling the IP router-alert option:

    no router-alert
  

• Add systemd unit file

• Introduce mroutectl, a helpful tool to interact with mrouted. This completely replaces mrouted.cache and mrouted.dump, including SIGUSR1 and SIGUSR2 signals, which are now ignored, issue #24

• The mrouted.pid file, and the new mrouted.sock file, are now located in /var/run

• Major cleanup of logging directives read from the command line, and from mroutectl. Use -d ?, and -l ? to list alternatives

• GNU Configure & Build system, use ./autogen.sh only when building directly from GIT sources, otherwise use ./configure from tarball

Fixes

• Fix #20: Replace obsolete gethostbyname() w/ getaddrinfo()
• Fix #25: Save mrouted.genid to persistent store in /var/lib instead of /var/run
• Fixed libc portability issues, e.g. GNU:isms like %m etc.
• Import OpenBSD fix to daemon() equivalent, use /dev/null for stdin, stdout and stderr
• Use clock_gettime(), with monotonic clock, instead of the unsafe gethostbyname(), for all non-date-printing code paths. Only for mrouted, other tools have not been changed
• Fix lots of invalid format specifiers, found by Coverity Scan and clang on FreeBSD
• Fix detection of netinet/igmp.h on FreeBSD
• Fix memory leaks in mrouted on SIGHUP

Packages for Debian 10, and compatible Ubuntu releases, available at https://deb.troglobit.com/

mrouted v4.0-rc1

Major release with full IGMPv3 (ASM) support and a new mroutectl tool.

Note: command line options have been changed!

Changes

• Support for IGMPv3, both sending queries and accepting membership reports, issue #16
• Support for configurable IGMP query interval, issue #26
• Support for configurable IGMP robustness variable, issue #27
• Incompatible command line option refactor
• Add systemd unit file
• Introduce mroutectl, a helpful tool to interact with mrouted. This completely replaces mrouted.cache and mrouted.dump, including SIGUSR1 and SIGUSR2 signals, which are now ignored, issue #24
• The mrouted.pid file, and the new mrouted.sock file, are now located in /var/run
• Major cleanup of logging directives take from command line, and now also from mroutectl. Use -d ?, and -l ? to list alternatives
• GNU Configure & Build system, use ./autogen.sh only when building directly from GIT sources, otherwise use ./configure from tarball

Fixes

• Fix #20: Replace obsolete gethostbyname() w/ getaddrinfo()
• Fix #25: Save mrouted.genid to persistent store in /var/lib instead of /var/run
• Fixed libc portability issues, e.g. GNU:isms like %m etc.
• Import OpenBSD fix to daemon() equivalent, use /dev/null for stdin, stdout and stderr
• Use clock_gettime(), with monotonic clock, instead of the unsafe gethostbyname(), for all non-date-printing code paths. Only for mrouted, other tools have not been changed
• Fix lots of invalid format specifiers, found by Coverity Scan and clang on FreeBSD
• Fix detection of netinet/igmp.h on FreeBSD

mrouted v3.9.8

Changes & New Features

• New option -D or --startup-delay to tune the initial delay during which routes are exchanged, but not applied.
• The mrouted man page has been cleaned up and sections clarfied.
• Add -D_DEFAULT_SOURCE for building on GLIBC v2.20, and later.
• Sync with OpenBSD mrouted

Bug Fixes

• Matt Weber found and fixed a serious bug with DVMRP reports missing subnet (off by one error) which seems to have been introduced in v3.9.5. Issue #14
• Fix mtrace compilation with Clang 3.5, fix courtesy of FreeBSD. https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196166 by Dimitry Andric (@DimitryAndric), heads-up by Olivier Cochard-Labbé (@ocochard)
• Minor warnings from scan-build (clang) also fixed. See the GIT log for more details.

mrouted v3.9.7

Changes & New Features

• SNMP Support removed. It never compiled and would have likely
  needed a complete refactor to support modern AgentX.
• Replaced static config.mk with configure script from pimd
• RSRR Support disabled by default, use --enable-rsrr to configure script
• Add support for starting with mrouted disabled on all interfaces, or with
  some interfaces missing at startup. Use 'enable' to phyint directive and
  -M/-N command line options to control this behavior. Feature thanks to
  Joseph Gooch (@goochjj)
• Add David Waitzman and Craig Partridge to list of original authors
  after being contacted by Mr Waitzman :)
• Change to use stdint.h types instead of type unsafe homegrown types

Bug Fixes

• Fix issue with older BSD kernels, mainly for current FreeBSD 10 and
  older, that don't really give RAW sockets but byte swap ip_len
  field, Olivier Cochard-Labbé (@ocochard)
• Build fixes for FreeBSD, should make maintaining ports easier :)
• Change from select() to poll() due to descriptor limits, e.g.,
  on BSD.
• UNIX 2038 first audit, inspired by OpenBSD. Cleanup type confusion
  int/u_long where it should be time_t. Also, clarify that genid
  is OK, since it's used and stored as unsigned 32-bit integer.
• Lots of minor fixes detected by Coverity Scan and Clang scan-build
  https://scan.coverity.com/projects/3320