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Be carefull to preserve

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(issue_date, life) -> (StartTime, EndTime) -> (issue_date, life)


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@4477 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Björn Groenvall
1998-02-27 17:22:21 +00:00
parent b04a2fd389
commit bd465edee2
1 changed files with 19 additions and 5 deletions
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24
lib/kafs/common.c
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@@ -75,17 +75,31 @@ kafs_settoken(const char *cell, uid_t uid, CREDENTIALS *c)
*/ */
ct.AuthHandle = c->kvno; ct.AuthHandle = c->kvno;
memcpy (ct.HandShakeKey, c->session, sizeof(c->session)); memcpy (ct.HandShakeKey, c->session, sizeof(c->session));
ct.ViceId = uid; /* is this always valid? */ ct.ViceId = uid;
ct.BeginTimestamp = 1 + c->issue_date; ct.BeginTimestamp = c->issue_date;
ct.EndTimestamp = krb_life_to_time(c->issue_date, c->lifetime); ct.EndTimestamp = krb_life_to_time(c->issue_date, c->lifetime);
if(ct.EndTimestamp < time(NULL)) if(ct.EndTimestamp < time(NULL))
return 0; /* don't store tokens that has expired (and possibly return 0; /* don't store tokens that has expired (and possibly
overwriting valid tokens)*/ overwriting valid tokens)*/
#define ODD(x) ((x) & 1) #define ODD(x) ((x) & 1)
/* If we don't know the numerical ID lifetime should be even? */ /* According to Transarc conventions ViceId is valid iff
if (uid == 0 && ODD(ct.EndTimestamp - ct.BeginTimestamp)) * (EndTimestamp - BeginTimestamp) is odd. By decrementing EndTime
ct.BeginTimestamp--; * the transformations:
*
* (issue_date, life) -> (StartTime, EndTime) -> (issue_date, life)
* preserves the original values.
*/
if (uid != 0) /* valid ViceId */
{
if (!ODD(ct.EndTimestamp - ct.BeginTimestamp))
ct.EndTimestamp--;
}
else /* not valid ViceId */
{
if (ODD(ct.EndTimestamp - ct.BeginTimestamp))
ct.EndTimestamp--;
}
t = buf; t = buf;
/* /*