[krbdev.mit.edu #8479] git commit

[Greg Hudson via RT]

<URL: https://krbdev.mit.edu/rt/Ticket/Display.html?id=8479 >


Add RBCD client support

When making S4U2Proxy requests, include a PA-PAC-OPTIONS pa-data
element advertising resource-based constrained delegation support.  If
the KDC returns a referral TGT for the initial request and advertises
RBCD support, chase referrals to the target realm with both a regular
and proxy TGT, and make an S4U2Proxy request to the target realm with
the proxy TGT as evidence ticket.

Because cross-realm S4U2Proxy requests must use referrals, an explicit
foreign realm in the server name cannot be honored.  In the GSSAPI
krb5 mech, if a host-based server name is used, omit the realm (if one
was obtained from [domain_realm] or similar) when calling
krb5_get_credentials() for constrained delegation.

[ghudson at mit.edu: rewrote commit message; made style changes]

https://github.com/krb5/krb5/commit/c426ef2ca2ba45dbf96f5380cf7d153ec0679424
Author: Isaac Boukris <iboukris at gmail.com>
Committer: Greg Hudson <ghudson at mit.edu>
Commit: c426ef2ca2ba45dbf96f5380cf7d153ec0679424
Branch: master
 src/include/k5-int.h                   |   13 ++
 src/include/krb5/krb5.hin              |    1 +
 src/lib/gssapi/krb5/init_sec_context.c |    9 +-
 src/lib/krb5/asn.1/asn1_k_encode.c     |   22 +++
 src/lib/krb5/krb/gc_via_tkt.c          |    9 +-
 src/lib/krb5/krb/s4u_creds.c           |  306 ++++++++++++++++++++++++++++++--
 src/lib/krb5/libkrb5.exports           |    2 +
 7 files changed, 345 insertions(+), 17 deletions(-)