RCSID("$Header$");
extern char *whoami, *host;
+extern int proxy_acl;
+extern krb5_context context;
+static int set_client(client *cl, char *kname,
+ char *name, char *inst, char *realm);
+
+#ifdef HAVE_KRB4
typedef struct _replay_cache {
KTEXT_ST auth;
time_t expires;
} replay_cache;
replay_cache *rcache = NULL;
+#endif
/*
* Handle a MOIRA_AUTH RPC request.
* cl->cl_name.
*/
-void do_auth(client *cl, mr_params req)
+void do_auth(client *cl)
{
+#ifdef HAVE_KRB4
KTEXT_ST auth;
AUTH_DAT ad;
- int status, ok;
+ int status;
replay_cache *rc, *rcnew;
time_t now;
- auth.length = req.mr_argl[0];
- memcpy(auth.dat, req.mr_argv[0], auth.length);
+ auth.length = cl->req.mr_argl[0];
+ memcpy(auth.dat, cl->req.mr_argv[0], auth.length);
auth.mbz = 0;
if ((status = krb_rd_req(&auth, MOIRA_SNAME, host,
com_err(whoami, 0,
"Authenticator replay from %s using authenticator for %s",
inet_ntoa(cl->haddr.sin_addr),
- kname_unparse(ad.pname, ad.pinst, ad.prealm));
+ mr_kname_unparse(ad.pname, ad.pinst, ad.prealm));
com_err(whoami, KE_RD_AP_REPEAT, " (authentication failed)");
client_reply(cl, KE_RD_AP_REPEAT);
return;
rc = rc->next;
}
- memcpy(cl->kname.name, ad.pname, ANAME_SZ);
- memcpy(cl->kname.inst, ad.pinst, INST_SZ);
- memcpy(cl->kname.realm, ad.prealm, REALM_SZ);
- strncpy(cl->clname, kname_unparse(ad.pname, ad.pinst, ad.prealm),
- sizeof(cl->clname));
+ status = set_client(cl, mr_kname_unparse(ad.pname, ad.pinst, ad.prealm),
+ ad.pname, ad.pinst, ad.prealm);
+
+ strncpy(cl->entity, cl->req.mr_argv[1], sizeof(cl->entity) - 1);
+ cl->entity[sizeof(cl->entity) - 1] = 0;
+
+ memset(&ad, 0, sizeof(ad)); /* Clean up session key, etc. */
+
+ com_err(whoami, 0, "Auth to %s using %s, uid %d cid %d",
+ cl->clname, cl->entity, cl->users_id, cl->client_id);
+
+ if (status != MR_SUCCESS || cl->users_id != 0)
+ client_reply(cl, status);
+ else
+ client_reply(cl, MR_USER_AUTH);
+#else
+ client_reply(cl, MR_NO_KRB4);
+#endif
+}
+
+void do_proxy(client *cl)
+{
+ char name[ANAME_SZ] = "\0", inst[INST_SZ] = "\0", realm[REALM_SZ] = "\0";
+ char kname[MAX_K_NAME_SZ];
+
+ if (cl->proxy_id)
+ {
+ com_err(whoami, MR_PERM, "Cannot re-proxy");
+ client_reply(cl, MR_PERM);
+ return;
+ }
+
+ if (mr_kname_parse(name, inst, realm, cl->req.mr_argv[0]) != 0)
+ {
+ com_err(whoami, KE_KNAME_FMT, "while parsing proxy name %s",
+ cl->req.mr_argv);
+ client_reply(cl, KE_KNAME_FMT);
+ return;
+ }
+
+ if (!*realm)
+ {
+ strcpy(realm, krb_realm);
+ sprintf(kname, "%s@%s", cl->req.mr_argv[0], realm);
+ }
+ else
+ strcpy(kname, cl->req.mr_argv[0]);
+
+ if (find_member("LIST", proxy_acl, cl))
+ {
+ cl->proxy_id = cl->client_id;
+ set_client(cl, kname, name, inst, realm);
+ com_err(whoami, 0, "Proxy authentication as %s (uid %d cid %d) via %s",
+ kname, cl->users_id, cl->client_id, cl->req.mr_argv[1]);
+ client_reply(cl, MR_SUCCESS);
+ }
+ else
+ {
+ com_err(whoami, MR_PERM, "Proxy authentication denied");
+ client_reply(cl, MR_PERM);
+ }
+}
+
+static int set_client(client *cl, char *kname,
+ char *name, char *inst, char *realm)
+{
+ int ok;
+
+ strncpy(cl->clname, kname, sizeof(cl->clname));
cl->clname[sizeof(cl->clname) - 1] = '\0';
- if (ad.pinst[0] == 0 && !strcmp(ad.prealm, krb_realm))
+ if ((!inst || inst[0] == 0) && !strcmp(realm, krb_realm))
ok = 1;
else
ok = 0;
/* this is in a separate function because it accesses the database */
- status = set_krb_mapping(cl->clname, ad.pname, ok,
- &cl->client_id, &cl->users_id);
+ return set_krb_mapping(cl->clname, name, ok, &cl->client_id, &cl->users_id);
+}
- strncpy(cl->entity, req.mr_argv[1], 8);
- cl->entity[8] = 0;
+void do_krb5_auth(client *cl)
+{
+ krb5_data auth;
+ krb5_auth_context auth_con = NULL;
+ krb5_principal server = NULL, client = NULL;
+ krb5_ticket *ticket;
+ char name[ANAME_SZ], inst[INST_SZ], realm[REALM_SZ];
+ int status;
- memset(&ad, 0, sizeof(ad)); /* Clean up session key, etc. */
+ ticket = NULL;
- com_err(whoami, 0, "Auth to %s using %s, uid %d cid %d",
+ status = krb5_auth_con_init(context, &auth_con);
+ if (status)
+ {
+ client_reply(cl, status);
+ com_err(whoami, status, "(krb5 auth context init failed)");
+ goto out;
+ }
+
+ status = krb5_sname_to_principal(context, host, MOIRA_SNAME,
+ KRB5_NT_SRV_HST, &server);
+ if (status)
+ {
+ client_reply(cl, status);
+ com_err(whoami, status, "(krb5_sname_to_principal failed)");
+ goto out;
+ }
+
+ auth.length = cl->req.mr_argl[0];
+ auth.data = cl->req.mr_argv[0];
+
+ status = krb5_rd_req(context, &auth_con, &auth, server, NULL, NULL,
+ &ticket);
+ if (status)
+ {
+ client_reply(cl, status);
+ com_err(whoami, status, " (krb5 authentication failed)");
+ goto out;
+ }
+
+ status = krb5_copy_principal(context, ticket->enc_part2->client, &client);
+ if (status)
+ {
+ client_reply(cl, status);
+ com_err(whoami, status, " (krb5_copy_principal failed)");
+ goto out;
+ }
+
+ /* Always convert to krb4 style principal name for now. */
+ status = krb5_524_conv_principal(context, client, name, inst, realm);
+ if (status)
+ {
+ client_reply(cl, status);
+ com_err(whoami, status, " (krb5_524_conv_principal failed)");
+ goto out;
+ }
+ status = set_client(cl, mr_kname_unparse(name, inst, realm), name, inst,
+ realm);
+
+ strncpy(cl->entity, cl->req.mr_argv[1], sizeof(cl->entity) - 1);
+ cl->entity[sizeof(cl->entity) - 1] = 0;
+
+ com_err(whoami, 0, "krb5 auth to %s using %s, uid %d cid %d",
cl->clname, cl->entity, cl->users_id, cl->client_id);
if (status != MR_SUCCESS || cl->users_id != 0)
client_reply(cl, status);
else
client_reply(cl, MR_USER_AUTH);
+
+ out:
+ if (client)
+ krb5_free_principal(context, client);
+ if (server)
+ krb5_free_principal(context, server);
+ if (ticket)
+ krb5_free_ticket(context, ticket);
+ if (auth_con)
+ krb5_auth_con_free(context, auth_con);
+ return;
}
andersk / moira.git / blobdiff