[krbdev.mit.edu #8930] git commit

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[krbdev.mit.edu #8930] git commit

Greg Hudson via RT

Fri Aug 07 18:49:07 2020: Request 8930 was acted upon.
 Transaction: Ticket created by [hidden email]
       Queue: krb5
     Subject: git commit
       Owner: [hidden email]
  Requestors:
      Status: new
 Ticket <URL: https://krbdev.mit.edu/rt/Ticket/Display.html?id=8930 >



Expand dns_canonicalize_host=fallback support

In krb5_sname_to_principal(), when using fallback, defer realm lookup
and any kind of hostname canonicalization until use.  Add a
lightweight iterator k5_canonprinc() to yield the one or two possible
candidates for a principal.  In the iterator, don't yield the same
hostname part twice.

Add fallback processing to the stepwise TGS state machine, and remove
it from krb5_get_credentials().  Add fallback processing to
k5_get_proxy_cred_from_kdc().

Add fallback processing to krb5_init_creds_set_keytab(), and use the
principal we find in the keytab as the request client principal.
Defer restart_init_creds_loop() to the first step call so that server
principal is built using the correct realm.

Add fallback processing to krb5_rd_req().

https://github.com/krb5/krb5/commit/3fcc365a6f049730b3f47168f7112c03997c5c0b
Author: Greg Hudson <[hidden email]>
Commit: 3fcc365a6f049730b3f47168f7112c03997c5c0b
Branch: master
 src/include/k5-trace.h            |    4 +-
 src/kprop/kprop_util.c            |   26 ++---
 src/lib/krb5/krb/deps             |   41 ++++----
 src/lib/krb5/krb/get_creds.c      |  151 ++++++++++++---------------
 src/lib/krb5/krb/get_in_tkt.c     |    7 +-
 src/lib/krb5/krb/gic_keytab.c     |   29 +++++-
 src/lib/krb5/krb/init_creds_ctx.h |    1 +
 src/lib/krb5/krb/rd_req_dec.c     |   36 ++++++-
 src/lib/krb5/krb/s4u_creds.c      |   62 ++++++++---
 src/lib/krb5/os/os-proto.h        |   30 +++++
 src/lib/krb5/os/sn2princ.c        |  213 +++++++++++++++++++++++++-----------
 src/tests/icred.c                 |   39 +++++--
 src/tests/t_sn2princ.py           |   55 +++++++---
 13 files changed, 459 insertions(+), 235 deletions(-)

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