[16780] in Kerberos-V5-bugs
[krbdev.mit.edu #7707] git commit
daemon@ATHENA.MIT.EDU (Greg Hudson via RT)
Wed Aug 25 12:14:07 2021
From: "Greg Hudson via RT" <rt@krbdev.mit.edu>
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Date: Wed, 25 Aug 2021 12:13:50 -0400
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<URL: https://krbdev.mit.edu/rt/Ticket/Display.html?id=7707 >
Perform atomic ccache refreshes when possible
Allow ccache types to implement atomic replacement via a new replace
method (replacing the unused "move" vtable slot). Make krb5_cc_move()
use this method when possible, falling back to non-atomic replacement.
Implement atomic replacement for FILE, DIR, MEMORY, and KCM (using a
new opcode, falling back when it is not implemented).
Use krb5_cc_move() in get_in_tkt.c when an output ccache is specified,
in kinit for ticket validation and renewal, and in kvno --out-cache.
Add a test program to exercise concurrent krb5_get_credentials() and
cache refresh.
This commit does not implement atomic replacement for KEYRING or for
gss_store_creds().
https://github.com/krb5/krb5/commit/371f09d4bf4ca0c7ba15c5ef909bc35307ed9cc3
Author: Greg Hudson <ghudson@mit.edu>
Commit: 371f09d4bf4ca0c7ba15c5ef909bc35307ed9cc3
Branch: master
src/clients/kinit/kinit.c | 22 ++++-
src/clients/kvno/kvno.c | 24 ++++-
src/include/kcm.h | 2 +
src/lib/krb5/ccache/cc-int.h | 8 +-
src/lib/krb5/ccache/cc_dir.c | 11 ++-
src/lib/krb5/ccache/cc_file.c | 110 ++++++++++++++++++-----
src/lib/krb5/ccache/cc_kcm.c | 39 ++++++++-
src/lib/krb5/ccache/cc_memory.c | 100 +++++++++++++-------
src/lib/krb5/ccache/ccbase.c | 119 +++++++++++++++++-------
src/lib/krb5/krb/get_in_tkt.c | 83 ++++++++++++-----
src/lib/krb5/krb/t_vfy_increds.c | 15 ++-
src/tests/Makefile.in | 23 +++--
src/tests/conccache.c | 190 ++++++++++++++++++++++++++++++++++++++
src/tests/kcmserver.py | 74 ++++++++++-----
src/tests/t_ccache.py | 5 +
15 files changed, 661 insertions(+), 164 deletions(-)
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