Add KDC support for X.509 S4U2Self requests Add a KDB function krb5_db_get_s4u_x509_principal() and an associated method in the DAL, bumping the minor version and cleaning up a leftover comment in the table from major version 6. When processing an AS-REQ, look up the client principal by certificate if the request contains a non-empty PA-S4U-X509-USER value. When processing an S4U2Self TGS-REQ, allow requests with certificates, and look up the client principal by certificate if one is presented. [ghudson@mit.edu: factored out lookup_client() in AS code; rewrote commit message and some comments; adjusted flow control changes in kdc_process_s4u_x509_user()] https://github.com/krb5/krb5/commit/0fbfffbef2c266fedac557e00108b944e31e8d50 Author: Isaac Boukris Committer: Greg Hudson Commit: 0fbfffbef2c266fedac557e00108b944e31e8d50 Branch: master src/include/kdb.h | 31 ++++++++++++++++++++++++++++--- src/kdc/do_as_req.c | 23 +++++++++++++++++++++-- src/kdc/kdc_util.c | 34 +++++++++++++++++++++++++++------- src/lib/kdb/kdb5.c | 32 ++++++++++++++++++++++++++++++++ src/lib/kdb/libkdb5.exports | 1 + 5 files changed, 109 insertions(+), 12 deletions(-)