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From patch attached to http://krbdev.mit.edu/rt/Ticket/Display.html?id=3349,
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at http://krbdev.mit.edu/rt/Ticket/Attachment/23851/13214/kvno.diff, adjusted
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as needed to apply to 1.10. FIXME: I'd like to better handle cases where we
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have a new key with the right version stored later in the keytab file.
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Currently, we're setting up to overlook that possibility.
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Note that this only affects the path taken when krb5_rd_rep() is passed a
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server principal name, as without a server principal name it already tries
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all of the keys it finds in the keytab, regardless of version numbers.
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Index: krb5/src/kadmin/ktutil/ktutil.c
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===================================================================
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--- krb5/src/kadmin/ktutil/ktutil.c (revision 3367)
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+++ krb5/src/kadmin/ktutil/ktutil.c (working copy)
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@@ -155,7 +155,7 @@
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char *princ = NULL;
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char *enctype = NULL;
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krb5_kvno kvno = 0;
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- int use_pass = 0, use_key = 0, i;
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+ int use_pass = 0, use_key = 0, use_kvno = 0, i;
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for (i = 1; i < argc; i++) {
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if ((strlen(argv[i]) == 2) && !strncmp(argv[i], "-p", 2)) {
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@@ -164,6 +164,7 @@
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}
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if ((strlen(argv[i]) == 2) && !strncmp(argv[i], "-k", 2)) {
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kvno = (krb5_kvno) atoi(argv[++i]);
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+ use_kvno++;
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continue;
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}
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if ((strlen(argv[i]) == 2) && !strncmp(argv[i], "-e", 2)) {
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@@ -180,7 +181,7 @@
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}
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}
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- if (argc != 8 || !(princ && kvno && enctype) || (use_pass+use_key != 1)) {
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+ if (argc != 8 || !(princ && use_kvno && enctype) || (use_pass+use_key != 1)) {
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fprintf(stderr, _("usage: %s (-key | -password) -p principal "
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"-k kvno -e enctype\n"), argv[0]);
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return;
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Index: krb5/src/lib/krb5/keytab/kt_file.c
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===================================================================
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--- krb5/src/lib/krb5/keytab/kt_file.c (revision 3367)
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+++ krb5/src/lib/krb5/keytab/kt_file.c (working copy)
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@@ -349,7 +349,7 @@
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higher than that. Short-term workaround: only compare
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the low 8 bits. */
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- if (new_entry.vno == (kvno & 0xff)) {
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+ if (new_entry.vno == (kvno & 0xff) || new_entry.vno == IGNORE_VNO) {
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krb5_kt_free_entry(context, &cur_entry);
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cur_entry = new_entry;
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break;
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