--- /dev/null
+/* ssl/kssl.c -*- mode: C; c-file-style: "eay" -*- */
+/* Written by Vern Staats <staatsvr@asc.hpc.mil> for the OpenSSL project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 2000 The OpenSSL Project. 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.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+
+/* ssl/kssl.c -- Routines to support (& debug) Kerberos5 auth for openssl
+**
+** 19990701 VRS Started.
+*/
+
+#ifndef NO_KRB5
+#include <string.h>
+#include <openssl/ssl.h>
+
+char
+*kstring(char *string)
+ {
+ static char *null = "[NULL]";
+
+ return ((string == NULL)? null: string);
+ }
+
+#define MAXKNUM 255
+char
+*knumber(int len, krb5_octet *contents)
+ {
+ static char buf[MAXKNUM+1];
+ int i;
+
+ BIO_snprintf(buf, MAXKNUM, "[%d] ", len);
+
+ for (i=0; i < len && MAXKNUM > strlen(buf)+3; i++)
+ {
+ BIO_snprintf(&buf[strlen(buf)], 3, "%02x", contents[i]);
+ }
+
+ return (buf);
+}
+
+
+/* Set kssl_err error info when reason text is a simple string
+** kssl_err = struct { int reason; char text[KSSL_ERR_MAX+1]; }
+*/
+void
+kssl_err_set(KSSL_ERR *kssl_err, int reason, char *text)
+ {
+ if (kssl_err == NULL) return;
+
+ kssl_err->reason = reason;
+ BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, text);
+ return;
+ }
+
+
+/* Display contents of krb5_data struct, for debugging
+*/
+void
+print_krb5_data(char *label, krb5_data *kdata)
+ {
+ int i;
+
+ printf("%s[%d] ", label, kdata->length);
+ for (i=0; i < kdata->length; i++)
+ {
+ if (isprint((int) kdata->data[i]))
+ printf( "%c ", kdata->data[i]);
+ else
+ printf( "%02x", kdata->data[i]);
+ }
+ printf("\n");
+ }
+
+
+/* Display contents of krb5_authdata struct, for debugging
+*/
+void
+print_krb5_authdata(char *label, krb5_authdata **adata)
+ {
+ if (adata == NULL)
+ {
+ printf("%s, authdata==0\n", label);
+ return;
+ }
+ printf("%s [%p]\n", label, adata);
+#if 0
+ {
+ int i;
+ printf("%s[at%d:%d] ", label, adata->ad_type, adata->length);
+ for (i=0; i < adata->length; i++)
+ {
+ printf((isprint(adata->contents[i]))? "%c ": "%02x",
+ adata->contents[i]);
+ }
+ printf("\n");
+ }
+#endif
+}
+
+
+/* Display contents of krb5_keyblock struct, for debugging
+*/
+void
+print_krb5_keyblock(char *label, krb5_keyblock *keyblk)
+ {
+ int i;
+
+ if (keyblk == NULL)
+ {
+ printf("%s, keyblk==0\n", label);
+ return;
+ }
+ printf("%s\n\t[et%d:%d]: ", label, keyblk->enctype, keyblk->length);
+ for (i=0; i < keyblk->length; i++)
+ {
+ printf("%02x",keyblk->contents[i]);
+ }
+ printf("\n");
+ }
+
+
+/* Given krb5 service (typically "kssl") and hostname in kssl_ctx,
+** Create Kerberos AP_REQ message for SSL Client.
+**
+** 19990628 VRS Started.
+*/
+krb5_error_code
+kssl_cget_tkt( /* UPDATE */ KSSL_CTX *kssl_ctx,
+ /* OUT */ krb5_data *krb5_app_req, KSSL_ERR *kssl_err)
+{
+ krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
+ krb5_context krb5context = NULL;
+ krb5_auth_context krb5auth_context = NULL;
+ krb5_ccache krb5ccdef = NULL;
+ krb5_creds krb5creds, *krb5credsp = NULL;
+ krb5_data krb5in_data;
+
+ kssl_err_set(kssl_err, 0, "");
+ memset((char *)&krb5creds, 0, sizeof(krb5creds));
+
+ if (!kssl_ctx)
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
+ "No kssl_ctx defined.\n");
+ goto err;
+ }
+ else if (!kssl_ctx->service_host)
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
+ "kssl_ctx service_host undefined.\n");
+ goto err;
+ }
+
+ if ((krb5rc = krb5_init_context(&krb5context)) != 0)
+ {
+ BIO_snprintf(kssl_err->text,KSSL_ERR_MAX,
+ "krb5_init_context() fails: %d\n", krb5rc);
+ kssl_err->reason = SSL_R_KRB5_C_INIT;
+ goto err;
+ }
+
+ if ((krb5rc = krb5_sname_to_principal(krb5context,
+ kssl_ctx->service_host,
+ (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC,
+ KRB5_NT_SRV_HST, &krb5creds.server)) != 0)
+ {
+ BIO_snprintf(kssl_err->text,KSSL_ERR_MAX,
+ "krb5_sname_to_principal() fails for %s/%s\n",
+ kssl_ctx->service_host,
+ (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC);
+ kssl_err->reason = SSL_R_KRB5_C_INIT;
+ goto err;
+ }
+
+ if ((krb5rc = krb5_cc_default(krb5context, &krb5ccdef)) != 0)
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_C_CC_PRINC,
+ "krb5_cc_default fails.\n");
+ goto err;
+ }
+
+ if ((krb5rc = krb5_cc_get_principal(krb5context, krb5ccdef,
+ &krb5creds.client)) != 0)
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_C_CC_PRINC,
+ "krb5_cc_get_principal() fails.\n");
+ goto err;
+ }
+
+ if ((krb5rc = krb5_get_credentials(krb5context, 0, krb5ccdef,
+ &krb5creds, &krb5credsp)) != 0)
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_C_GET_CRED,
+ "krb5_get_credentials() fails.\n");
+ goto err;
+ }
+
+ krb5in_data.data = NULL;
+ krb5in_data.length = 0;
+
+ krb5rc = KRB5KRB_ERR_GENERIC;
+ /* caller should free data of krb5_app_req */
+ if ((krb5rc = krb5_mk_req_extended(krb5context, &krb5auth_context,
+ 0, &krb5in_data, krb5credsp, krb5_app_req)) != 0)
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_C_MK_REQ,
+ "krb5_mk_req_extended() fails.\n");
+ goto err;
+ }
+ else if (kssl_ctx_setkey(kssl_ctx, &krb5credsp->keyblock))
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_C_INIT,
+ "kssl_ctx_setkey() fails.\n");
+ }
+ else krb5rc = 0;
+
+ err:
+#ifdef KSSL_DEBUG
+ kssl_ctx_show(kssl_ctx);
+#endif /* KSSL_DEBUG */
+
+ if (krb5creds.client) krb5_free_principal(krb5context, krb5creds.client);
+ if (krb5creds.server) krb5_free_principal(krb5context, krb5creds.server);
+ if (krb5auth_context) krb5_auth_con_free(krb5context, krb5auth_context);
+ if (krb5context) krb5_free_context(krb5context);
+ return (krb5rc);
+}
+
+
+/* Given krb5 service name in KSSL_CTX *kssl_ctx (typically "kssl"),
+** and krb5 AP_REQ message & message length,
+** Return Kerberos session key and client principle
+** to SSL Server in KSSL_CTX *kssl_ctx.
+**
+** 19990702 VRS Started.
+*/
+krb5_error_code
+kssl_sget_tkt( /* UPDATE */ KSSL_CTX *kssl_ctx,
+ /* IN */ char *msg, int msglen,
+ /* OUT */ KSSL_ERR *kssl_err )
+ {
+ krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC;
+ static krb5_context krb5context = NULL;
+ static krb5_auth_context krb5auth_context = NULL;
+ krb5_ticket *krb5ticket = NULL;
+ krb5_keytab krb5keytab = NULL;
+ krb5_principal krb5server;
+ krb5_data krb5in_data;
+ krb5_flags ap_option;
+
+ kssl_err_set(kssl_err, 0, "");
+
+ if (!kssl_ctx)
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, "No kssl_ctx defined.\n");
+ goto err;
+ }
+
+#ifdef KSSL_DEBUG
+ printf("in kssl_sget_tkt(%s)\n", kstring(kssl_ctx->service_name));
+#endif /* KSSL_DEBUG */
+
+ if (!krb5context && (krb5rc = krb5_init_context(&krb5context)))
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
+ "krb5_init_context() fails.\n");
+ goto err;
+ }
+ if (krb5auth_context &&
+ (krb5rc = krb5_auth_con_free(krb5context, krb5auth_context)))
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
+ "krb5_auth_con_free() fails.\n");
+ goto err;
+ }
+ else krb5auth_context = NULL;
+ if (!krb5auth_context &&
+ (krb5rc = krb5_auth_con_init(krb5context, &krb5auth_context)))
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
+ "krb5_auth_con_init() fails.\n");
+ goto err;
+ }
+
+ if ((krb5rc = krb5_sname_to_principal(krb5context, NULL,
+ (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC,
+ KRB5_NT_SRV_HST, &krb5server)) != 0)
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT,
+ "krb5_sname_to_principal() fails.\n");
+ goto err;
+ }
+
+ if (kssl_ctx->keytab_file &&
+ ((krb5rc = krb5_kt_resolve(krb5context, kssl_ctx->keytab_file,
+ &krb5keytab))))
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, "krb5_kt_resolve() fails.\n");
+ goto err;
+ }
+ /* kssl_ctx->keytab_file == NULL ==> use Kerberos default /etc/krb5.keytab
+ */
+
+ /* Actual Kerberos5 krb5_recvauth() has initial conversation here
+ ** o check KRB5_SENDAUTH_BADAUTHVERS unless KRB5_RECVAUTH_SKIP_VERSION
+ ** o check KRB5_SENDAUTH_BADAPPLVERS
+ ** o send "0" msg if all OK
+ */
+
+ krb5in_data.data = msg;
+ krb5in_data.length = msglen;
+ if ((krb5rc = krb5_rd_req(krb5context, &krb5auth_context, &krb5in_data,
+ krb5server, krb5keytab, &ap_option, &krb5ticket))
+ != 0)
+ {
+ BIO_snprintf(kssl_err->text, KSSL_ERR_MAX,
+ "krb5_rd_req() fails with %x.\n", krb5rc);
+ kssl_err->reason = SSL_R_KRB5_S_RD_REQ;
+ goto err;
+ }
+
+ krb5rc = KRB5_NO_TKT_SUPPLIED;
+ if (!krb5ticket || !krb5ticket->enc_part2 ||
+ !krb5ticket->enc_part2->client ||
+ !krb5ticket->enc_part2->client->data ||
+ !krb5ticket->enc_part2->session)
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
+ "bad ticket from krb5_rd_req.\n");
+ }
+ else if (kssl_ctx_setprinc(kssl_ctx, KSSL_CLIENT,
+ &krb5ticket->enc_part2->client->realm,
+ krb5ticket->enc_part2->client->data))
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
+ "kssl_ctx_setprinc() fails.\n");
+ }
+ else if (kssl_ctx_setkey(kssl_ctx, krb5ticket->enc_part2->session))
+ {
+ kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET,
+ "kssl_ctx_setkey() fails.\n");
+ }
+ else krb5rc = 0;
+
+ err:
+#ifdef KSSL_DEBUG
+ kssl_ctx_show(kssl_ctx);
+#endif /* KSSL_DEBUG */
+
+ if (krb5ticket) krb5_free_ticket(krb5context, krb5ticket);
+ if (krb5server) krb5_free_principal(krb5context, krb5server);
+ return (krb5rc);
+ }
+
+
+/* Allocate & return a new kssl_ctx struct.
+*/
+KSSL_CTX *
+kssl_ctx_new(void)
+ {
+ return ((KSSL_CTX *) calloc(1, sizeof(KSSL_CTX)));
+ }
+
+
+/* Frees a kssl_ctx struct and any allocated memory it holds.
+** Returns NULL.
+*/
+KSSL_CTX *
+kssl_ctx_free(KSSL_CTX *kssl_ctx)
+ {
+ if (kssl_ctx == NULL) return kssl_ctx;
+
+ if (kssl_ctx->key) memset(kssl_ctx->key, 0, kssl_ctx->length);
+ if (kssl_ctx->key) free(kssl_ctx->key);
+ if (kssl_ctx->client_princ) free(kssl_ctx->client_princ);
+ if (kssl_ctx->service_host) free(kssl_ctx->service_host);
+ if (kssl_ctx->service_name) free(kssl_ctx->service_name);
+ if (kssl_ctx->keytab_file) free(kssl_ctx->keytab_file);
+
+ free(kssl_ctx);
+ return (KSSL_CTX *) NULL;
+ }
+
+
+/* Given a (krb5_data *) entity (and optional realm),
+** set the plain (char *) client_princ or service_host member
+** of the kssl_ctx struct.
+*/
+krb5_error_code
+kssl_ctx_setprinc(KSSL_CTX *kssl_ctx, int which,
+ krb5_data *realm, krb5_data *entity)
+ {
+ char **princ;
+ int length;
+
+ if (kssl_ctx == NULL || entity == NULL) return KSSL_CTX_ERR;
+
+ switch (which)
+ {
+ case KSSL_CLIENT: princ = &kssl_ctx->client_princ; break;
+ case KSSL_SERVER: princ = &kssl_ctx->service_host; break;
+ default: return KSSL_CTX_ERR; break;
+ }
+ if (*princ) free(*princ);
+
+ length = entity->length + ((realm)? realm->length + 2: 1);
+ if ((*princ = calloc(1, length)) == NULL) return KSSL_CTX_ERR;
+ else
+ {
+ strncpy(*princ, entity->data, entity->length);
+ if (realm)
+ {
+ strcat (*princ, "@");
+ (void) strncat(*princ, realm->data, realm->length);
+ }
+ }
+
+ return KSSL_CTX_OK;
+ }
+
+
+/* Set one of the plain (char *) string members of the kssl_ctx struct.
+** Default values should be:
+** which == KSSL_SERVICE => "kssl" (KRB5SVC)
+** which == KSSL_KEYTAB => "/etc/krb5.keytab.kssl" (KRB5KEYTAB)
+*/
+krb5_error_code
+kssl_ctx_setstring(KSSL_CTX *kssl_ctx, int which, char *text)
+ {
+ char **string;
+
+ if (!kssl_ctx) return KSSL_CTX_ERR;
+
+ switch (which)
+ {
+ case KSSL_SERVICE: string = &kssl_ctx->service_name; break;
+ case KSSL_SERVER: string = &kssl_ctx->service_host; break;
+ case KSSL_CLIENT: string = &kssl_ctx->client_princ; break;
+ case KSSL_KEYTAB: string = &kssl_ctx->keytab_file; break;
+ default: return KSSL_CTX_ERR; break;
+ }
+ if (*string) free(*string);
+
+ if (!text)
+ {
+ *string = '\0';
+ return KSSL_CTX_OK;
+ }
+
+ if ((*string = calloc(1, strlen(text) + 1)) == NULL) return KSSL_CTX_ERR;
+ else strcpy(*string, text);
+
+ return KSSL_CTX_OK;
+ }
+
+
+/* Copy the Kerberos session key from a (krb5_keyblock *) to a kssl_ctx
+** struct. Clear kssl_ctx->key if Kerberos session key is NULL.
+*/
+krb5_error_code
+kssl_ctx_setkey(KSSL_CTX *kssl_ctx, krb5_keyblock *session)
+ {
+ if (!kssl_ctx) return KSSL_CTX_ERR;
+
+ if (kssl_ctx->key)
+ {
+ memset(kssl_ctx->key, 0, kssl_ctx->length);
+ free(kssl_ctx->key);
+ }
+
+ if (session)
+ {
+ kssl_ctx->enctype = session->enctype;
+ kssl_ctx->length = session->length;
+ }
+ else
+ {
+ kssl_ctx->enctype = ENCTYPE_UNKNOWN;
+ kssl_ctx->length = 0;
+ return KSSL_CTX_OK;
+ }
+
+ if ((kssl_ctx->key =
+ (krb5_octet FAR *) calloc(1, kssl_ctx->length)) == NULL)
+ {
+ kssl_ctx->length = 0;
+ return KSSL_CTX_ERR;
+ }
+ else memcpy(kssl_ctx->key, session->contents, session->length);
+
+ return KSSL_CTX_OK;
+ }
+
+
+/* Display contents of kssl_ctx struct
+*/
+void
+kssl_ctx_show(KSSL_CTX *kssl_ctx)
+ {
+ int i;
+
+ printf("kssl_ctx: ");
+ if (kssl_ctx == NULL)
+ {
+ printf("NULL\n");
+ return;
+ }
+ else printf("%p\n", kssl_ctx);
+
+ printf("\tservice:\t%s\n",
+ (kssl_ctx->service_name)? kssl_ctx->service_name: "NULL");
+ printf("\tclient:\t%s\n",
+ (kssl_ctx->client_princ)? kssl_ctx->client_princ: "NULL");
+ printf("\tserver:\t%s\n",
+ (kssl_ctx->service_host)? kssl_ctx->service_host: "NULL");
+ printf("\tkeytab:\t%s\n",
+ (kssl_ctx->keytab_file)? kssl_ctx->keytab_file: "NULL");
+ printf("\tkey [%d:%d]:\t",
+ kssl_ctx->enctype, kssl_ctx->length);
+
+ for (i=0; i < kssl_ctx->length && kssl_ctx->key; i++)
+ {
+ printf("%02x", kssl_ctx->key[i]);
+ }
+ printf("\n");
+ return;
+ }
+
+#endif /* NO_KRB5 */
+
--- /dev/null
+/* ssl/kssl.h -*- mode: C; c-file-style: "eay" -*- */
+/* Written by Vern Staats <staatsvr@asc.hpc.mil> for the OpenSSL project 2000.
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 2000 The OpenSSL Project. 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.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+/*
+** 19990701 VRS Started.
+*/
+
+#ifndef KSSL_H
+#define KSSL_H
+
+#ifndef NO_KRB5
+
+#include <stdio.h>
+#include <ctype.h>
+#include <krb5.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Uncomment this to debug kssl problems or
+** to trace usage of the Kerberos session key
+**
+** #define KSSL_DEBUG
+*/
+
+#ifndef KRB5SVC
+#define KRB5SVC "host"
+#endif
+
+#ifndef KRB5KEYTAB
+#define KRB5KEYTAB "/etc/krb5.keytab"
+#endif
+
+
+#define KSSL_ERR_MAX 255
+typedef struct kssl_err_st {
+ int reason;
+ char text[KSSL_ERR_MAX+1];
+ } KSSL_ERR;
+
+
+/* Context for passing
+** (1) Kerberos session key to SSL, and
+** (2) Config data between application and SSL lib
+*/
+typedef struct kssl_ctx_st
+ {
+ /* used by: disposition: */
+ char *service_name; /* C,S default ok (kssl) */
+ char *service_host; /* C input, REQUIRED */
+ char *client_princ; /* S output from krb5 ticket */
+ char *keytab_file; /* S NULL (/etc/krb5.keytab) */
+ krb5_enctype enctype;
+ int length;
+ krb5_octet FAR *key;
+ } KSSL_CTX;
+
+#define KSSL_CLIENT 1
+#define KSSL_SERVER 2
+#define KSSL_SERVICE 3
+#define KSSL_KEYTAB 4
+
+#define KSSL_CTX_OK 0
+#define KSSL_CTX_ERR 1
+#define KSSL_NOMEM 2
+
+
+void print_krb5_data(char *label, krb5_data *kdata);
+void print_krb5_authdata(char *label, krb5_authdata **adata);
+void print_krb5_keyblock(char *label, krb5_keyblock *keyblk);
+
+char *kstring(char *string);
+char *knumber(int len, krb5_octet *contents);
+
+
+void kssl_err_set(KSSL_ERR *kssl_err, int reason, char *text);
+
+KSSL_CTX *kssl_ctx_new(void);
+KSSL_CTX *kssl_ctx_free(KSSL_CTX *kssl_ctx);
+void kssl_ctx_show(KSSL_CTX *kssl_ctx);
+krb5_error_code kssl_ctx_setkey(KSSL_CTX *kssl_ctx, krb5_keyblock *session);
+krb5_error_code kssl_ctx_setstring(KSSL_CTX *kssl_ctx, int which, char *text);
+krb5_error_code kssl_ctx_setprinc(KSSL_CTX *kssl_ctx, int which,
+ krb5_data *realm, krb5_data *entity);
+
+krb5_error_code kssl_cget_tkt(KSSL_CTX *kssl_ctx, krb5_data *ap_req,
+ KSSL_ERR *kssl_err);
+krb5_error_code kssl_sget_tkt(KSSL_CTX *kssl_ctx, char *msg, int msglen,
+ KSSL_ERR *kssl_err);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* NO_KRB5 */
+#endif /* KSSL_H */
projects / openssl.git / commitdiff