[GIT SERIES v3] secnet: polypath

[Ian Jackson]

The following series is available for review here:
  http://www.chiark.greenend.org.uk/ucgi/~ian/git/secnet.git/
  git://git.chiark.greenend.org.uk/~ian/secnet.git
in the following rev-list:
  base.polypath.v3..proposed.polypath.v3

Compared to v2, this contains many important bugfixes, stylistic and
logging improvements, and an entirely new privsep arrangement (which
means that it can be used with a secnet which drops privilege).

    1  hackypar: Fix coding style
    2  udp: Use <bsd/sys/queue.h> for notify lists
    3  main loop: Use <bsd/sys/queue.h> for poll interest list
    4  poll: Introduce and use BEFOREPOLL_WANT_FDS
    5  realloc: Provide safe_realloc_ary
    6  poll: Make handling of fds array actually dynamic
    7  poll: Abolish max_nfds
    8  poll: Support deregistration from the main event loop
    9  poll: Document reentrancy restriction on before()
   10  logging: Provide lg_perror and lg_vperror
   11  comm: Rename a lot of state pointer variables
   12  comm: Use BUF_GET_BYTES
   13  comm: Break out common code in comm
   14  comm: Break out some common udp parts
   15  comm: Formalise interface to udp sockets
   16  comm: Make udp_make_socket be able to tolerate failures
   17  comm: Provide udp_socks_deregister
   18  logging: Provide lg_exitstatus
   19  logging: Use lg_exitstatus
   20  udp: Break out udp_destroy_socket
   21  process: Introduce afterfork()
   22  Introduce setnonblock()
   23  fds: Make many fds nonblocking
   24  util: Provide async_linebuf_read
   25  slip: Remove an incorrect XXX comment
   26  cleanup: Replace a few calls to malloc/realloc with safe_malloc
   27  udp: Introduce some `us' convenience variables, etc.
   28  udp: Log transmission and reception errors, at least some of the tim
   29  Makefile.in: Move settings of various directories above CFLAGS etc.
   30  transform-cbcmac: Move max_[seq]_skew into params struct
   31  transform: Break out SEQNUM_KEYED_FIELDS and SEQNUM_PARAMS_FIELDS
   32  transform: Discard previously-received packets
   33  secnet: provide will_droppriv
   34  util: Use BSD queue.h for phase hook lists
   35  buffer: Provide buffer_destroy
   36  util: Break out pollbadbit()
   37  polypath: Provide polypath comm module
   38  polypath: Provide Linux interface monitor
   39  test-example: Provide a polypath test
   40  polypath: Reorganise to break up ifaddr handling
   41  process: Clear SHUTDOWN hooks in afterfork()
   42  polypath: Break up child process handling
   43  polypath: Close parent's socket in child
   44  fds etc.: Support non-forking persistent children
   45  logging: Persistent children include pid in their log messages
   46  polypath: Log pid of long-running interface monitor
   47  test-example: Reorder a config to better test CHILDPERSIST
   48  polypath: Provide privsep mode
   49  test-example: Set `system/userid'
   50  udp, polypath: Make specifying port optional
   51  test-example: Test not specifying a port
   52  udp, polypath: Log `experiencing success receiving', etc.

 Makefile.in                       |   21 +-
 README                            |   63 ++-
 comm-common.c                     |   55 +++
 comm-common.h                     |  110 +++++
 hackypar.c                        |  134 +++---
 ipaddr.c                          |   10 +-
 log.c                             |   90 +++-
 modules.c                         |    1 +
 polypath-interface-monitor-linux  |   84 ++++
 polypath.c                        |  846 +++++++++++++++++++++++++++++++++++++
 process.c                         |   51 +--
 resolver.c                        |    2 +-
 secnet.c                          |   93 ++--
 secnet.h                          |   80 +++-
 site.c                            |   27 +-
 slip.c                            |   63 +--
 test-example/common.conf          |    1 +
 test-example/inside-polypath.conf |   20 +
 transform-cbcmac.c                |   31 +-
 transform-common.h                |   64 ++-
 transform-eax.c                   |   17 +-
 tun.c                             |    8 +-
 udp.c                             |  411 ++++++++++--------
 util.c                            |  153 ++++++-
 util.h                            |   48 ++-
 25 files changed, 2059 insertions(+), 424 deletions(-)

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