Return to auth-bsdauth.c CVS log

Up to [local] / src / usr.bin / ssh

Annotation of src/usr.bin/ssh/auth-bsdauth.c, Revision 1.1

1.1     ! markus      1: /*
        !             2:  * Copyright (c) 2001 Markus Friedl.  All rights reserved.
        !             3:  *
        !             4:  * Redistribution and use in source and binary forms, with or without
        !             5:  * modification, are permitted provided that the following conditions
        !             6:  * are met:
        !             7:  * 1. Redistributions of source code must retain the above copyright
        !             8:  *    notice, this list of conditions and the following disclaimer.
        !             9:  * 2. Redistributions in binary form must reproduce the above copyright
        !            10:  *    notice, this list of conditions and the following disclaimer in the
        !            11:  *    documentation and/or other materials provided with the distribution.
        !            12:  *
        !            13:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            15:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            16:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            17:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            18:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            19:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            20:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            21:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            22:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            23:  */
        !            24: #include "includes.h"
        !            25: RCSID("$OpenBSD: auth2-chall.c,v 1.4 2001/03/28 22:43:31 markus Exp $");
        !            26:
        !            27: #ifdef BSD_AUTH
        !            28: #include "xmalloc.h"
        !            29: #include "auth.h"
        !            30: #include "log.h"
        !            31:
        !            32: static void *
        !            33: bsdauth_init_ctx(Authctxt *authctxt)
        !            34: {
        !            35:        return authctxt;
        !            36: }
        !            37:
        !            38: static int
        !            39: bsdauth_query(void *ctx, char **name, char **infotxt,
        !            40:    u_int *numprompts, char ***prompts, u_int **echo_on)
        !            41: {
        !            42:         Authctxt *authctxt = ctx;
        !            43:         char *challenge = NULL;
        !            44:
        !            45:         if (authctxt->as != NULL) {
        !            46:                 debug2("bsdauth_query: try reuse session");
        !            47:                 challenge = auth_getitem(authctxt->as, AUTHV_CHALLENGE);
        !            48:                 if (challenge == NULL) {
        !            49:                         auth_close(authctxt->as);
        !            50:                         authctxt->as = NULL;
        !            51:                 }
        !            52:         }
        !            53:
        !            54:         if (challenge == NULL) {
        !            55:                 debug2("bsdauth_query: new bsd auth session");
        !            56:                 debug3("bsdauth_query: style %s",
        !            57:                    authctxt->style ? authctxt->style : "<default>");
        !            58:                 authctxt->as = auth_userchallenge(authctxt->user,
        !            59:                     authctxt->style, "auth-ssh", &challenge);
        !            60:                 if (authctxt->as == NULL)
        !            61:                         challenge = NULL;
        !            62:                 debug2("bsdauth_query: <%s>", challenge ? challenge : "empty");
        !            63:         }
        !            64:
        !            65:         if (challenge == NULL)
        !            66:                 return -1;
        !            67:
        !            68:         *name       = xstrdup("");
        !            69:         *infotxt    = xstrdup("");
        !            70:         *numprompts = 1;
        !            71:         *prompts = xmalloc(*numprompts * sizeof(char*));
        !            72:         *echo_on = xmalloc(*numprompts * sizeof(u_int));
        !            73:         (*echo_on)[0] = 0;
        !            74:         (*prompts)[0] = xstrdup(challenge);
        !            75:
        !            76:         return 0;
        !            77: }
        !            78:
        !            79: static int
        !            80: bsdauth_respond(void *ctx, u_int numresponses, char **responses)
        !            81: {
        !            82:         Authctxt *authctxt = ctx;
        !            83:         int authok;
        !            84:
        !            85:         if (authctxt->as == 0)
        !            86:                 error("bsdauth_respond: no bsd auth session");
        !            87:
        !            88:         if (numresponses != 1)
        !            89:                 return -1;
        !            90:
        !            91:         authok = auth_userresponse(authctxt->as, responses[0], 0);
        !            92:         authctxt->as = NULL;
        !            93:         debug3("bsdauth_respond: <%s> = <%d>", responses[0], authok);
        !            94:
        !            95:         return (authok == 0) ? -1 : 0;
        !            96: }
        !            97:
        !            98: static void
        !            99: bsdauth_free_ctx(void *ctx)
        !           100: {
        !           101:         Authctxt *authctxt = ctx;
        !           102:
        !           103:         if (authctxt && authctxt->as) {
        !           104:                 auth_close(authctxt->as);
        !           105:                 authctxt->as = NULL;
        !           106:         }
        !           107: }
        !           108:
        !           109: KbdintDevice bsdauth_device = {
        !           110:        "bsdauth",
        !           111:        bsdauth_init_ctx,
        !           112:        bsdauth_query,
        !           113:        bsdauth_respond,
        !           114:        bsdauth_free_ctx
        !           115: };
        !           116: #endif