Re: [PATCH v2 0/3] nfs-utils: gssd support for KRB5_AP_ERR_BAD_INTEGRITY

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On 10/4/23 1:32 PM, Olga Kornievskaia wrote:
From: Olga Kornievskaia <kolga@xxxxxxxxxx>

Together with libtirpc patch this series attempts to provide
support for handling KRB5_AP_ERR_BAD_INTEGRITY.

Such error can be returned by the server when it has changed
its key material and the client is still using the service
ticket that was issues prior to the change.

Upon calling authgss_create_default() and receiving a NULL
context, we can inspect the returned structure to see
if gss major/minor error code was set. If the client
determines that it received KRB5_AP_ERR_BAD_INTEGRITY error,
it will proceed to handle it based on what type of credentials
were used for context establishement. If machine credentials
were used, the client can call into a routine and force
credential renewal. If user credentials were used, the client
needs to remove the existing service ticket and then retry
the request.

-- fix compile warning in libtirpc patch

Olga Kornievskaia (3):
   gssd: enable forcing cred renewal using the keytab
   gssd: handle KRB5_AP_ERR_BAD_INTEGRITY for machine credentials
   gssd: handle KRB5_AP_ERR_BAD_INTEGRITY for user credentials
Committed... (tag: nfs-utils-2-6-4-rc4)

steved.


  utils/gssd/gssd_proc.c | 20 ++++++++++++--
  utils/gssd/krb5_util.c | 62 ++++++++++++++++++++++++++++++++++++------
  utils/gssd/krb5_util.h |  4 ++-
  3 files changed, 75 insertions(+), 11 deletions(-)





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