re-organize
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@9036 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
204
kdc/524.c
204
kdc/524.c
@@ -37,13 +37,133 @@ RCSID("$Id$");
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#ifdef KRB4
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/*
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* fetch the server from `t', returning the name in malloced memory in
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* `spn' and the entry itself in `server'
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*/
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static krb5_error_code
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fetch_server (const Ticket *t,
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char **spn,
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hdb_entry **server,
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const char *from)
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{
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krb5_error_code ret;
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krb5_principal sprinc;
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ret = principalname2krb5_principal(&sprinc, t->sname, t->realm);
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if (ret) {
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kdc_log(0, "principalname2krb5_principal: %s",
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krb5_get_err_text(context, ret));
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return ret;
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}
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ret = krb5_unparse_name(context, sprinc, spn);
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if (ret) {
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krb5_free_principal(context, sprinc);
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kdc_log(0, "krb5_unparse_name: %s", krb5_get_err_text(context, ret));
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return ret;
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}
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*server = db_fetch(sprinc);
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krb5_free_principal(context, sprinc);
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if(*server == NULL){
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kdc_log(0, "Request to convert ticket from %s for unknown principal %s",
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from, *spn);
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return KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN;
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}
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return 0;
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}
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static krb5_error_code
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log_524 (const EncTicketPart *et,
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const char *from,
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const char *spn)
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{
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krb5_principal client;
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char *cpn;
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krb5_error_code ret;
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ret = principalname2krb5_principal(&client, et->cname, et->crealm);
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if (ret) {
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kdc_log(0, "principalname2krb5_principal: %s",
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krb5_get_err_text (context, ret));
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return ret;
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}
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ret = krb5_unparse_name(context, client, &cpn);
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if (ret) {
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krb5_free_principal(context, client);
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kdc_log(0, "krb5_unparse_name: %s",
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krb5_get_err_text (context, ret));
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return ret;
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}
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kdc_log(1, "524-REQ %s from %s for %s", cpn, from, spn);
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free(cpn);
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krb5_free_principal(context, client);
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return 0;
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}
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static krb5_error_code
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verify_flags (const EncTicketPart *et,
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const char *spn)
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{
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if(et->endtime < kdc_time){
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kdc_log(0, "Ticket expired (%s)", spn);
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return KRB5KRB_AP_ERR_TKT_EXPIRED;
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}
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if(et->flags.invalid){
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kdc_log(0, "Ticket not valid (%s)", spn);
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return KRB5KRB_AP_ERR_TKT_NYV;
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}
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return 0;
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}
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/*
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* set the `et->caddr' to the most appropriate address to use, where
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* `addr' is the address the request was received from. */
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static krb5_error_code
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set_address (EncTicketPart *et,
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struct sockaddr *addr,
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const char *from)
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{
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krb5_error_code ret;
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krb5_address v4_addr;
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ret = krb5_sockaddr2address(addr, &v4_addr);
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if(ret) {
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kdc_log(0, "Failed to convert address (%s)", from);
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return ret;
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}
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if (et->caddr && !krb5_address_search (context, &v4_addr, et->caddr)) {
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kdc_log(0, "Incorrect network address (%s)", from);
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krb5_free_address(context, &v4_addr);
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return KRB5KRB_AP_ERR_BADADDR;
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}
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if(v4_addr.addr_type == KRB5_ADDRESS_INET) {
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/* we need to collapse the addresses in the ticket to a
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single address; best guess is to use the address the
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connection came from */
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free_HostAddresses(et->caddr);
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et->caddr->val = &v4_addr;
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et->caddr->len = 1;
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} else
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krb5_free_address(context, &v4_addr);
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return 0;
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}
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/*
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* process a 5->4 request, based on `t', and received `from, addr',
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* returning the reply in `reply'
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*/
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krb5_error_code
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do_524(Ticket *t, krb5_data *reply, const char *from, struct sockaddr *addr)
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do_524(const Ticket *t, krb5_data *reply,
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const char *from, struct sockaddr *addr)
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{
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krb5_error_code ret = 0;
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krb5_principal sprinc = NULL;
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krb5_crypto crypto;
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hdb_entry *server;
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hdb_entry *server = NULL;
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Key *skey;
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krb5_data et_data;
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EncTicketPart et;
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@@ -59,18 +179,14 @@ do_524(Ticket *t, krb5_data *reply, const char *from, struct sockaddr *addr)
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goto out;
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}
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principalname2krb5_principal(&sprinc, t->sname, t->realm);
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krb5_unparse_name(context, sprinc, &spn);
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server = db_fetch(sprinc);
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if(server == NULL){
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ret = KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN;
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kdc_log(0, "Request to convert ticket from %s for unknown principal %s",
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from, spn);
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ret = fetch_server (t, &spn, &server, from);
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if (ret) {
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goto out;
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}
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ret = hdb_enctype2key(context, server, t->enc_part.etype, &skey);
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if(ret){
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kdc_log(0, "No suitable key found for server (%s) "
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kdc_log(0, "No suitable key found for server (%s) from %s "
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"when converting ticket from ", spn, from);
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goto out;
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}
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@@ -97,60 +213,26 @@ do_524(Ticket *t, krb5_data *reply, const char *from, struct sockaddr *addr)
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kdc_log(0, "Failed to decode ticket from %s for %s", from, spn);
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goto out;
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}
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{
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krb5_principal client;
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char *cpn;
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principalname2krb5_principal(&client, et.cname, et.crealm);
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krb5_unparse_name(context, client, &cpn);
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kdc_log(1, "524-REQ %s from %s for %s", cpn, from, spn);
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free(cpn);
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krb5_free_principal(context, client);
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}
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if(et.endtime < kdc_time){
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kdc_log(0, "Ticket expired (%s)", spn);
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ret = log_524 (&et, from, spn);
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if (ret) {
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free_EncTicketPart(&et);
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ret = KRB5KRB_AP_ERR_TKT_EXPIRED;
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goto out;
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}
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if(et.flags.invalid){
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kdc_log(0, "Ticket not valid (%s)", spn);
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ret = verify_flags (&et, spn);
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if (ret) {
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free_EncTicketPart(&et);
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ret = KRB5KRB_AP_ERR_TKT_NYV;
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goto out;
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}
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{
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krb5_addresses *save_caddr, new_addr;
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krb5_address v4_addr;
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ret = krb5_sockaddr2address(addr, &v4_addr);
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if(ret) {
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kdc_log(0, "Failed to convert address (%s)", spn);
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free_EncTicketPart(&et);
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goto out;
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}
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if (et.caddr && !krb5_address_search (context, &v4_addr, et.caddr)) {
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kdc_log(0, "Incorrect network address (%s)", spn);
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free_EncTicketPart(&et);
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krb5_free_address(context, &v4_addr);
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ret = KRB5KRB_AP_ERR_BADADDR;
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goto out;
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}
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if(v4_addr.addr_type == KRB5_ADDRESS_INET) {
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/* we need to collapse the addresses in the ticket to a
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single address; best guess is to use the address the
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connection came from */
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save_caddr = et.caddr;
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new_addr.len = 1;
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new_addr.val = &v4_addr;
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et.caddr = &new_addr;
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}
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ret = encode_v4_ticket(buf + sizeof(buf) - 1, sizeof(buf),
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&et, &t->sname, &len);
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if(v4_addr.addr_type == KRB5_ADDRESS_INET)
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et.caddr = save_caddr;
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ret = set_address (&et, addr, from);
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if (ret) {
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free_EncTicketPart(&et);
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goto out;
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}
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ret = encode_v4_ticket(buf + sizeof(buf) - 1, sizeof(buf),
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&et, &t->sname, &len);
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free_EncTicketPart(&et);
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if(ret){
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kdc_log(0, "Failed to encode v4 ticket (%s)", spn);
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@@ -185,13 +267,9 @@ out:
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if(spn)
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free(spn);
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if(sprinc)
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krb5_free_principal(context, sprinc);
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if(server) {
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hdb_free_entry(context, server);
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free(server);
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}
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if(server)
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free_ent (server);
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return ret;
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}
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#endif
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#endif /* KRB4 */
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