[a1bae3e] | 1 | /* ssl/kssl.h -*- mode: C; c-file-style: "eay" -*- */ |
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| 2 | /* Written by Vern Staats <staatsvr@asc.hpc.mil> for the OpenSSL project 2000. |
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| 3 | * project 2000. |
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| 4 | */ |
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| 5 | /* ==================================================================== |
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| 6 | * Copyright (c) 2000 The OpenSSL Project. All rights reserved. |
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| 7 | * |
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| 8 | * Redistribution and use in source and binary forms, with or without |
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| 9 | * modification, are permitted provided that the following conditions |
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| 10 | * are met: |
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| 11 | * |
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| 12 | * 1. Redistributions of source code must retain the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer. |
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| 14 | * |
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 16 | * notice, this list of conditions and the following disclaimer in |
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| 17 | * the documentation and/or other materials provided with the |
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| 18 | * distribution. |
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| 19 | * |
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| 20 | * 3. All advertising materials mentioning features or use of this |
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| 21 | * software must display the following acknowledgment: |
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| 22 | * "This product includes software developed by the OpenSSL Project |
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| 23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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| 24 | * |
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| 25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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| 26 | * endorse or promote products derived from this software without |
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| 27 | * prior written permission. For written permission, please contact |
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| 28 | * licensing@OpenSSL.org. |
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| 29 | * |
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| 30 | * 5. Products derived from this software may not be called "OpenSSL" |
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| 31 | * nor may "OpenSSL" appear in their names without prior written |
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| 32 | * permission of the OpenSSL Project. |
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| 33 | * |
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| 34 | * 6. Redistributions of any form whatsoever must retain the following |
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| 35 | * acknowledgment: |
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| 36 | * "This product includes software developed by the OpenSSL Project |
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| 37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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| 38 | * |
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| 39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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| 40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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| 43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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| 46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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| 48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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| 50 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 51 | * ==================================================================== |
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| 52 | * |
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| 53 | * This product includes cryptographic software written by Eric Young |
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| 54 | * (eay@cryptsoft.com). This product includes software written by Tim |
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| 55 | * Hudson (tjh@cryptsoft.com). |
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| 56 | * |
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| 57 | */ |
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| 58 | |
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| 59 | /* |
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| 60 | ** 19990701 VRS Started. |
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| 61 | */ |
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| 62 | |
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| 63 | #ifndef KSSL_H |
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| 64 | #define KSSL_H |
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| 65 | |
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| 66 | #include <openssl/opensslconf.h> |
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| 67 | |
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| 68 | #ifndef OPENSSL_NO_KRB5 |
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| 69 | |
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| 70 | #include <stdio.h> |
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| 71 | #include <ctype.h> |
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| 72 | #include <krb5.h> |
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| 73 | |
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| 74 | #ifdef __cplusplus |
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| 75 | extern "C" { |
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| 76 | #endif |
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| 77 | |
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| 78 | /* |
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| 79 | ** Depending on which KRB5 implementation used, some types from |
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| 80 | ** the other may be missing. Resolve that here and now |
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| 81 | */ |
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| 82 | #ifdef KRB5_HEIMDAL |
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| 83 | typedef unsigned char krb5_octet; |
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| 84 | #define FAR |
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| 85 | #else |
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| 86 | |
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| 87 | #ifndef FAR |
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| 88 | #define FAR |
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| 89 | #endif |
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| 90 | |
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| 91 | #endif |
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| 92 | |
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| 93 | /* Uncomment this to debug kssl problems or |
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| 94 | ** to trace usage of the Kerberos session key |
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| 95 | ** |
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| 96 | ** #define KSSL_DEBUG |
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| 97 | */ |
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| 98 | |
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| 99 | #ifndef KRB5SVC |
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| 100 | #define KRB5SVC "host" |
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| 101 | #endif |
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| 102 | |
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| 103 | #ifndef KRB5KEYTAB |
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| 104 | #define KRB5KEYTAB "/etc/krb5.keytab" |
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| 105 | #endif |
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| 106 | |
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| 107 | #ifndef KRB5SENDAUTH |
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| 108 | #define KRB5SENDAUTH 1 |
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| 109 | #endif |
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| 110 | |
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| 111 | #ifndef KRB5CHECKAUTH |
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| 112 | #define KRB5CHECKAUTH 1 |
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| 113 | #endif |
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| 114 | |
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| 115 | #ifndef KSSL_CLOCKSKEW |
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| 116 | #define KSSL_CLOCKSKEW 300; |
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| 117 | #endif |
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| 118 | |
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| 119 | #define KSSL_ERR_MAX 255 |
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| 120 | typedef struct kssl_err_st { |
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| 121 | int reason; |
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| 122 | char text[KSSL_ERR_MAX+1]; |
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| 123 | } KSSL_ERR; |
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| 124 | |
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| 125 | |
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| 126 | /* Context for passing |
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| 127 | ** (1) Kerberos session key to SSL, and |
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| 128 | ** (2) Config data between application and SSL lib |
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| 129 | */ |
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| 130 | typedef struct kssl_ctx_st |
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| 131 | { |
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| 132 | /* used by: disposition: */ |
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| 133 | char *service_name; /* C,S default ok (kssl) */ |
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| 134 | char *service_host; /* C input, REQUIRED */ |
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| 135 | char *client_princ; /* S output from krb5 ticket */ |
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| 136 | char *keytab_file; /* S NULL (/etc/krb5.keytab) */ |
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| 137 | char *cred_cache; /* C NULL (default) */ |
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| 138 | krb5_enctype enctype; |
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| 139 | int length; |
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| 140 | krb5_octet FAR *key; |
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| 141 | } KSSL_CTX; |
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| 142 | |
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| 143 | #define KSSL_CLIENT 1 |
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| 144 | #define KSSL_SERVER 2 |
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| 145 | #define KSSL_SERVICE 3 |
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| 146 | #define KSSL_KEYTAB 4 |
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| 147 | |
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| 148 | #define KSSL_CTX_OK 0 |
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| 149 | #define KSSL_CTX_ERR 1 |
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| 150 | #define KSSL_NOMEM 2 |
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| 151 | |
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| 152 | /* Public (for use by applications that use OpenSSL with Kerberos 5 support */ |
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| 153 | krb5_error_code kssl_ctx_setstring(KSSL_CTX *kssl_ctx, int which, char *text); |
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| 154 | KSSL_CTX *kssl_ctx_new(void); |
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| 155 | KSSL_CTX *kssl_ctx_free(KSSL_CTX *kssl_ctx); |
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| 156 | void kssl_ctx_show(KSSL_CTX *kssl_ctx); |
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| 157 | krb5_error_code kssl_ctx_setprinc(KSSL_CTX *kssl_ctx, int which, |
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| 158 | krb5_data *realm, krb5_data *entity, int nentities); |
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| 159 | krb5_error_code kssl_cget_tkt(KSSL_CTX *kssl_ctx, krb5_data **enc_tktp, |
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| 160 | krb5_data *authenp, KSSL_ERR *kssl_err); |
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| 161 | krb5_error_code kssl_sget_tkt(KSSL_CTX *kssl_ctx, krb5_data *indata, |
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| 162 | krb5_ticket_times *ttimes, KSSL_ERR *kssl_err); |
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| 163 | krb5_error_code kssl_ctx_setkey(KSSL_CTX *kssl_ctx, krb5_keyblock *session); |
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| 164 | void kssl_err_set(KSSL_ERR *kssl_err, int reason, char *text); |
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| 165 | void kssl_krb5_free_data_contents(krb5_context context, krb5_data *data); |
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| 166 | krb5_error_code kssl_build_principal_2(krb5_context context, |
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| 167 | krb5_principal *princ, int rlen, const char *realm, |
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| 168 | int slen, const char *svc, int hlen, const char *host); |
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| 169 | krb5_error_code kssl_validate_times(krb5_timestamp atime, |
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| 170 | krb5_ticket_times *ttimes); |
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| 171 | krb5_error_code kssl_check_authent(KSSL_CTX *kssl_ctx, krb5_data *authentp, |
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| 172 | krb5_timestamp *atimep, KSSL_ERR *kssl_err); |
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| 173 | unsigned char *kssl_skip_confound(krb5_enctype enctype, unsigned char *authn); |
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| 174 | |
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| 175 | #ifdef __cplusplus |
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| 176 | } |
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| 177 | #endif |
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| 178 | #endif /* OPENSSL_NO_KRB5 */ |
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| 179 | #endif /* KSSL_H */ |
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