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-rw-r--r--crypto/openssh/auth2.c307
1 files changed, 0 insertions, 307 deletions
diff --git a/crypto/openssh/auth2.c b/crypto/openssh/auth2.c
deleted file mode 100644
index 1b21eb2dab7b2..0000000000000
--- a/crypto/openssh/auth2.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/*
- * Copyright (c) 2000 Markus Friedl. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "includes.h"
-RCSID("$OpenBSD: auth2.c,v 1.96 2003/02/06 21:22:43 markus Exp $");
-
-#include "ssh2.h"
-#include "xmalloc.h"
-#include "packet.h"
-#include "log.h"
-#include "servconf.h"
-#include "compat.h"
-#include "auth.h"
-#include "dispatch.h"
-#include "pathnames.h"
-#include "monitor_wrap.h"
-
-/* import */
-extern ServerOptions options;
-extern u_char *session_id2;
-extern int session_id2_len;
-
-Authctxt *x_authctxt = NULL;
-
-/* methods */
-
-extern Authmethod method_none;
-extern Authmethod method_pubkey;
-extern Authmethod method_passwd;
-extern Authmethod method_kbdint;
-extern Authmethod method_hostbased;
-
-Authmethod *authmethods[] = {
- &method_none,
- &method_pubkey,
- &method_passwd,
- &method_kbdint,
- &method_hostbased,
- NULL
-};
-
-/* protocol */
-
-static void input_service_request(int, u_int32_t, void *);
-static void input_userauth_request(int, u_int32_t, void *);
-
-/* helper */
-static Authmethod *authmethod_lookup(const char *);
-static char *authmethods_get(void);
-int user_key_allowed(struct passwd *, Key *);
-int hostbased_key_allowed(struct passwd *, const char *, char *, Key *);
-
-/*
- * loop until authctxt->success == TRUE
- */
-
-Authctxt *
-do_authentication2(void)
-{
- Authctxt *authctxt = authctxt_new();
-
- x_authctxt = authctxt; /*XXX*/
-
- /* challenge-response is implemented via keyboard interactive */
- if (options.challenge_response_authentication)
- options.kbd_interactive_authentication = 1;
- if (options.pam_authentication_via_kbd_int)
- options.kbd_interactive_authentication = 1;
- if (use_privsep)
- options.pam_authentication_via_kbd_int = 0;
-
- dispatch_init(&dispatch_protocol_error);
- dispatch_set(SSH2_MSG_SERVICE_REQUEST, &input_service_request);
- dispatch_run(DISPATCH_BLOCK, &authctxt->success, authctxt);
-
- return (authctxt);
-}
-
-static void
-input_service_request(int type, u_int32_t seq, void *ctxt)
-{
- Authctxt *authctxt = ctxt;
- u_int len;
- int acceptit = 0;
- char *service = packet_get_string(&len);
- packet_check_eom();
-
- if (authctxt == NULL)
- fatal("input_service_request: no authctxt");
-
- if (strcmp(service, "ssh-userauth") == 0) {
- if (!authctxt->success) {
- acceptit = 1;
- /* now we can handle user-auth requests */
- dispatch_set(SSH2_MSG_USERAUTH_REQUEST, &input_userauth_request);
- }
- }
- /* XXX all other service requests are denied */
-
- if (acceptit) {
- packet_start(SSH2_MSG_SERVICE_ACCEPT);
- packet_put_cstring(service);
- packet_send();
- packet_write_wait();
- } else {
- debug("bad service request %s", service);
- packet_disconnect("bad service request %s", service);
- }
- xfree(service);
-}
-
-static void
-input_userauth_request(int type, u_int32_t seq, void *ctxt)
-{
- Authctxt *authctxt = ctxt;
- Authmethod *m = NULL;
- char *user, *service, *method, *style = NULL;
- int authenticated = 0;
-
- if (authctxt == NULL)
- fatal("input_userauth_request: no authctxt");
-
- user = packet_get_string(NULL);
- service = packet_get_string(NULL);
- method = packet_get_string(NULL);
- debug("userauth-request for user %s service %s method %s", user, service, method);
- debug("attempt %d failures %d", authctxt->attempt, authctxt->failures);
-
- if ((style = strchr(user, ':')) != NULL)
- *style++ = 0;
-
- if (authctxt->attempt++ == 0) {
- /* setup auth context */
- authctxt->pw = PRIVSEP(getpwnamallow(user));
- if (authctxt->pw && strcmp(service, "ssh-connection")==0) {
- authctxt->valid = 1;
- debug2("input_userauth_request: setting up authctxt for %s", user);
-#ifdef USE_PAM
- PRIVSEP(start_pam(authctxt->pw->pw_name));
-#endif
- } else {
- log("input_userauth_request: illegal user %s", user);
-#ifdef USE_PAM
- PRIVSEP(start_pam("NOUSER"));
-#endif
- }
- setproctitle("%s%s", authctxt->pw ? user : "unknown",
- use_privsep ? " [net]" : "");
- authctxt->user = xstrdup(user);
- authctxt->service = xstrdup(service);
- authctxt->style = style ? xstrdup(style) : NULL;
- if (use_privsep)
- mm_inform_authserv(service, style);
- } else if (strcmp(user, authctxt->user) != 0 ||
- strcmp(service, authctxt->service) != 0) {
- packet_disconnect("Change of username or service not allowed: "
- "(%s,%s) -> (%s,%s)",
- authctxt->user, authctxt->service, user, service);
- }
- /* reset state */
- auth2_challenge_stop(authctxt);
- authctxt->postponed = 0;
-
- /* try to authenticate user */
- m = authmethod_lookup(method);
- if (m != NULL) {
- debug2("input_userauth_request: try method %s", method);
- authenticated = m->userauth(authctxt);
- }
- userauth_finish(authctxt, authenticated, method);
-
- xfree(service);
- xfree(user);
- xfree(method);
-}
-
-void
-userauth_finish(Authctxt *authctxt, int authenticated, char *method)
-{
- char *methods;
-
- if (!authctxt->valid && authenticated)
- fatal("INTERNAL ERROR: authenticated invalid user %s",
- authctxt->user);
-
- /* Special handling for root */
- if (authenticated && authctxt->pw->pw_uid == 0 &&
- !auth_root_allowed(method))
- authenticated = 0;
-
-#ifdef USE_PAM
- if (!use_privsep && authenticated && authctxt->user &&
- !do_pam_account(authctxt->user, NULL))
- authenticated = 0;
-#endif /* USE_PAM */
-
-#ifdef _UNICOS
- if (authenticated && cray_access_denied(authctxt->user)) {
- authenticated = 0;
- fatal("Access denied for user %s.",authctxt->user);
- }
-#endif /* _UNICOS */
-
- /* Log before sending the reply */
- auth_log(authctxt, authenticated, method, " ssh2");
-
- if (authctxt->postponed)
- return;
-
- /* XXX todo: check if multiple auth methods are needed */
- if (authenticated == 1) {
- /* turn off userauth */
- dispatch_set(SSH2_MSG_USERAUTH_REQUEST, &dispatch_protocol_ignore);
- packet_start(SSH2_MSG_USERAUTH_SUCCESS);
- packet_send();
- packet_write_wait();
- /* now we can break out */
- authctxt->success = 1;
- } else {
- if (authctxt->failures++ > AUTH_FAIL_MAX) {
- packet_disconnect(AUTH_FAIL_MSG, authctxt->user);
- }
-#ifdef _UNICOS
- if (strcmp(method, "password") == 0)
- cray_login_failure(authctxt->user, IA_UDBERR);
-#endif /* _UNICOS */
- methods = authmethods_get();
- packet_start(SSH2_MSG_USERAUTH_FAILURE);
- packet_put_cstring(methods);
- packet_put_char(0); /* XXX partial success, unused */
- packet_send();
- packet_write_wait();
- xfree(methods);
- }
-}
-
-/* get current user */
-
-struct passwd*
-auth_get_user(void)
-{
- return (x_authctxt != NULL && x_authctxt->valid) ? x_authctxt->pw : NULL;
-}
-
-#define DELIM ","
-
-static char *
-authmethods_get(void)
-{
- Buffer b;
- char *list;
- int i;
-
- buffer_init(&b);
- for (i = 0; authmethods[i] != NULL; i++) {
- if (strcmp(authmethods[i]->name, "none") == 0)
- continue;
- if (authmethods[i]->enabled != NULL &&
- *(authmethods[i]->enabled) != 0) {
- if (buffer_len(&b) > 0)
- buffer_append(&b, ",", 1);
- buffer_append(&b, authmethods[i]->name,
- strlen(authmethods[i]->name));
- }
- }
- buffer_append(&b, "\0", 1);
- list = xstrdup(buffer_ptr(&b));
- buffer_free(&b);
- return list;
-}
-
-static Authmethod *
-authmethod_lookup(const char *name)
-{
- int i;
-
- if (name != NULL)
- for (i = 0; authmethods[i] != NULL; i++)
- if (authmethods[i]->enabled != NULL &&
- *(authmethods[i]->enabled) != 0 &&
- strcmp(name, authmethods[i]->name) == 0)
- return authmethods[i];
- debug2("Unrecognized authentication method name: %s",
- name ? name : "NULL");
- return NULL;
-}
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