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(krb5_compare_creds): add more matching options

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@13785 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
2004-04-25 16:12:04 +00:00
parent 851f04f5e0
commit b24e10c46b
1 changed files with 74 additions and 19 deletions
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93
lib/krb5/creds.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 1997 - 2001 Kungliga Tekniska H<>gskolan
* Copyright (c) 1997 - 2004 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
@@ -125,34 +125,89 @@ krb5_free_creds (krb5_context context, krb5_creds *c)
return 0;
}
/* XXX these do not belong here */
static krb5_boolean
krb5_data_equal(const krb5_data *a, const krb5_data *b)
{
if(a->length != b->length)
return FALSE;
return memcmp(a->data, b->data, a->length) == 0;
}
static krb5_boolean
krb5_times_equal(const krb5_times *a, const krb5_times *b)
{
return a->starttime == b->starttime &&
a->authtime == b->authtime &&
a->endtime == b->endtime &&
a->renew_till == b->renew_till;
}
/*
* Return TRUE if `mcreds' and `creds' are equal (`whichfields'
* determines what equal means).
*/
krb5_boolean
krb5_compare_creds(krb5_context context, krb5_flags whichfields,
const krb5_creds *mcreds, const krb5_creds *creds)
krb5_compare_creds(krb5_context context, krb5_flags whichfields,
const krb5_creds * mcreds, const krb5_creds * creds)
{
krb5_boolean match;
krb5_error_code (*matchfun)(krb5_context,
krb5_const_principal,
krb5_const_principal);
krb5_boolean match = TRUE;
if (match && mcreds->server) {
if (whichfields & (KRB5_TC_DONT_MATCH_REALM | KRB5_TC_MATCH_SRV_NAMEONLY))
match = krb5_principal_compare_any_realm (context, mcreds->server,
creds->server);
else
match = krb5_principal_compare (context, mcreds->server,
creds->server);
}
if(whichfields & KRB5_TC_DONT_MATCH_REALM)
matchfun = krb5_principal_compare_any_realm;
else
matchfun = krb5_principal_compare;
if (match && mcreds->client) {
if(whichfields & KRB5_TC_DONT_MATCH_REALM)
match = krb5_principal_compare_any_realm (context, mcreds->client,
creds->client);
else
match = krb5_principal_compare (context, mcreds->client,
creds->client);
}
if (match && (whichfields & KRB5_TC_MATCH_KEYTYPE))
match = krb5_enctypes_compatible_keys(context,
mcreds->session.keytype,
creds->session.keytype);
match = (*matchfun)(context, mcreds->server, creds->server);
if (match && (whichfields & KRB5_TC_MATCH_FLAGS_EXACT))
match = mcreds->flags.i == creds->flags.i;
if (match && mcreds->client)
match = (*matchfun)(context, mcreds->client, creds->client);
if (match && (whichfields & KRB5_TC_MATCH_FLAGS))
match = (creds->flags.i & mcreds->flags.i) == mcreds->flags.i;
if (match && (whichfields & KRB5_TC_MATCH_TIMES_EXACT))
match = krb5_times_equal(&mcreds->times, &creds->times);
if (match && (whichfields & KRB5_TC_MATCH_TIMES))
/* compare only expiration times */
match = (mcreds->times.renew_till <= creds->times.renew_till) &&
(mcreds->times.endtime <= creds->times.endtime);
if (match && (whichfields & KRB5_TC_MATCH_AUTHDATA)) {
unsigned int i;
if(mcreds->authdata.len != creds->authdata.len)
match = FALSE;
else
for(i = 0; match && i < mcreds->authdata.len; i++)
match = (mcreds->authdata.val[i].ad_type ==
creds->authdata.val[i].ad_type) &&
krb5_data_equal(&mcreds->authdata.val[i].ad_data,
&creds->authdata.val[i].ad_data);
}
if (match && (whichfields & KRB5_TC_MATCH_2ND_TKT))
match = krb5_data_equal(&mcreds->second_ticket, &creds->second_ticket);
if (match && (whichfields & KRB5_TC_MATCH_IS_SKEY))
match = ((mcreds->second_ticket.length == 0) ==
(creds->second_ticket.length == 0));
if(match && (whichfields & KRB5_TC_MATCH_KEYTYPE) &&
!krb5_enctypes_compatible_keys (context,
mcreds->session.keytype,
creds->session.keytype))
match = FALSE;
return match;
}