-/*
- * $Source$
- * $Author$
- * $Header$
+/* $Id$
+ *
+ * Handle server side of authentication
*
- * Copyright (C) 1987 by the Massachusetts Institute of Technology
- * For copying and distribution information, please see the file
- * <mit-copyright.h>.
+ * Copyright (C) 1987-1998 by the Massachusetts Institute of Technology
+ * For copying and distribution information, please see the file
+ * <mit-copyright.h>.
*
*/
-#ifndef lint
-static char *rcsid_sms_sauth_c = "$Header$";
-#endif lint
-
#include <mit-copyright.h>
-#include <string.h>
#include "mr_server.h"
-#include <ctype.h>
-#include <krb_et.h>
-#include <moira.h>
-#include <time.h>
+
+#include <sys/types.h>
+
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+RCSID("$Header$");
extern char *whoami, *host;
+extern int proxy_acl;
-/* from libmoira */
-char *kname_unparse(char *, char *, char *);
+static int set_client(client *cl, char *kname,
+ char *name, char *inst, char *realm);
typedef struct _replay_cache {
KTEXT_ST auth;
{
KTEXT_ST auth;
AUTH_DAT ad;
- int status, ok;
- extern int errno;
+ int status;
replay_cache *rc, *rcnew;
time_t now;
- auth.length = cl->args->mr_argl[0];
- memcpy(auth.dat, cl->args->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,
- cl->haddr.sin_addr.s_addr, &ad, "")))
+ if ((status = krb_rd_req(&auth, MOIRA_SNAME, host,
+ cl->haddr.sin_addr.s_addr, &ad, "")))
{
status += ERROR_TABLE_BASE_krb;
- cl->reply.mr_status = status;
- if (log_flags & LOG_RES)
- com_err(whoami, status, " (authentication failed)");
+ client_reply(cl, status);
+ com_err(whoami, status, " (authentication failed)");
return;
}
if (!rcache)
{
- rcache = malloc(sizeof(replay_cache));
+ rcache = xmalloc(sizeof(replay_cache));
memset(rcache, 0, sizeof(replay_cache));
}
inet_ntoa(cl->haddr.sin_addr),
kname_unparse(ad.pname, ad.pinst, ad.prealm));
com_err(whoami, KE_RD_AP_REPEAT, " (authentication failed)");
- cl->reply.mr_status = KE_RD_AP_REPEAT;
+ client_reply(cl, KE_RD_AP_REPEAT);
return;
}
}
/* add new entry */
time(&now);
- rcnew = malloc(sizeof(replay_cache));
+ rcnew = xmalloc(sizeof(replay_cache));
memcpy(&(rcnew->auth), &auth, sizeof(KTEXT_ST));
rcnew->expires = now + 2 * CLOCK_SKEW;
rcnew->next = rcache->next;
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);
- strcpy(cl->clname, kname_unparse(ad.pname, ad.pinst, ad.prealm));
+ status = set_client(cl, kname_unparse(ad.pname, ad.pinst, ad.prealm),
+ ad.pname, ad.pinst, ad.prealm);
- if (ad.pinst[0] == 0 && !strcmp(ad.prealm, krb_realm))
- ok = 1;
+ 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
- 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);
+ client_reply(cl, MR_USER_AUTH);
+}
+
+void do_proxy(client *cl)
+{
+ char name[ANAME_SZ], inst[INST_SZ], realm[REALM_SZ];
+ char kname[MAX_K_NAME_SZ];
- if (cl->args->mr_version_no == MR_VERSION_2)
+ if (cl->proxy_id)
{
- strncpy(cl->entity, cl->args->mr_argv[1], 8);
- cl->entity[8] = 0;
+ com_err(whoami, MR_PERM, "Cannot re-proxy");
+ client_reply(cl, MR_PERM);
+ return;
+ }
+
+ if (kname_parse(name, inst, realm, cl->req.mr_argv[0]) != KSUCCESS)
+ {
+ com_err(whoami, KE_KNAME_FMT, "while parsing proxy name %s",
+ cl->req.mr_argv);
+ client_reply(cl, KE_KNAME_FMT);
+ return;
}
- else
- strcpy(cl->entity, "???");
- memset(&ad, 0, sizeof(ad)); /* Clean up session key, etc. */
- if (log_flags & LOG_RES)
+ 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, 0, "Auth to %s using %s, uid %d cid %d",
- cl->clname, cl->entity, cl->users_id, cl->client_id);
+ com_err(whoami, MR_PERM, "Proxy authentication denied");
+ client_reply(cl, MR_PERM);
}
- if (status != MR_SUCCESS)
- cl->reply.mr_status = status;
- else if (cl->users_id == 0)
- cl->reply.mr_status = MR_USER_AUTH;
+}
+
+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 (inst[0] == 0 && !strcmp(realm, krb_realm))
+ ok = 1;
+ else
+ ok = 0;
+ /* this is in a separate function because it accesses the database */
+ return set_krb_mapping(cl->clname, name, ok, &cl->client_id, &cl->users_id);
}
andersk / moira.git / blobdiff