diff options
Diffstat (limited to 'crypto/heimdal/lib/gssapi/krb5/set_sec_context_option.c')
| -rw-r--r-- | crypto/heimdal/lib/gssapi/krb5/set_sec_context_option.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/gssapi/krb5/set_sec_context_option.c b/crypto/heimdal/lib/gssapi/krb5/set_sec_context_option.c new file mode 100644 index 0000000..50441a1 --- /dev/null +++ b/crypto/heimdal/lib/gssapi/krb5/set_sec_context_option.c @@ -0,0 +1,192 @@ +/* + * Copyright (c) 2004, PADL Software Pty Ltd. + * 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. Neither the name of PADL Software nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``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 PADL SOFTWARE OR 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. + */ + +/* + * glue routine for _gsskrb5_inquire_sec_context_by_oid + */ + +#include "krb5/gsskrb5_locl.h" + +RCSID("$Id: set_sec_context_option.c 20384 2007-04-18 08:51:06Z lha $"); + +static OM_uint32 +get_bool(OM_uint32 *minor_status, + const gss_buffer_t value, + int *flag) +{ + if (value->value == NULL || value->length != 1) { + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + *flag = *((const char *)value->value) != 0; + return GSS_S_COMPLETE; +} + +static OM_uint32 +get_string(OM_uint32 *minor_status, + const gss_buffer_t value, + char **str) +{ + if (value == NULL || value->length == 0) { + *str = NULL; + } else { + *str = malloc(value->length + 1); + if (*str == NULL) { + *minor_status = 0; + return GSS_S_UNAVAILABLE; + } + memcpy(*str, value->value, value->length); + (*str)[value->length] = '\0'; + } + return GSS_S_COMPLETE; +} + +OM_uint32 +_gsskrb5_set_sec_context_option + (OM_uint32 *minor_status, + gss_ctx_id_t *context_handle, + const gss_OID desired_object, + const gss_buffer_t value) +{ + krb5_context context; + OM_uint32 maj_stat; + + GSSAPI_KRB5_INIT (&context); + + if (value == GSS_C_NO_BUFFER) { + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + + if (gss_oid_equal(desired_object, GSS_KRB5_COMPAT_DES3_MIC_X)) { + gsskrb5_ctx ctx; + int flag; + + if (*context_handle == GSS_C_NO_CONTEXT) { + *minor_status = EINVAL; + return GSS_S_NO_CONTEXT; + } + + maj_stat = get_bool(minor_status, value, &flag); + if (maj_stat != GSS_S_COMPLETE) + return maj_stat; + + ctx = (gsskrb5_ctx)*context_handle; + HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); + if (flag) + ctx->more_flags |= COMPAT_OLD_DES3; + else + ctx->more_flags &= ~COMPAT_OLD_DES3; + ctx->more_flags |= COMPAT_OLD_DES3_SELECTED; + HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); + return GSS_S_COMPLETE; + } else if (gss_oid_equal(desired_object, GSS_KRB5_SET_DNS_CANONICALIZE_X)) { + int flag; + + maj_stat = get_bool(minor_status, value, &flag); + if (maj_stat != GSS_S_COMPLETE) + return maj_stat; + + krb5_set_dns_canonicalize_hostname(context, flag); + return GSS_S_COMPLETE; + + } else if (gss_oid_equal(desired_object, GSS_KRB5_REGISTER_ACCEPTOR_IDENTITY_X)) { + char *str; + + maj_stat = get_string(minor_status, value, &str); + if (maj_stat != GSS_S_COMPLETE) + return maj_stat; + + _gsskrb5_register_acceptor_identity(str); + free(str); + + *minor_status = 0; + return GSS_S_COMPLETE; + + } else if (gss_oid_equal(desired_object, GSS_KRB5_SET_DEFAULT_REALM_X)) { + char *str; + + maj_stat = get_string(minor_status, value, &str); + if (maj_stat != GSS_S_COMPLETE) + return maj_stat; + if (str == NULL) { + *minor_status = 0; + return GSS_S_CALL_INACCESSIBLE_READ; + } + + krb5_set_default_realm(context, str); + free(str); + + *minor_status = 0; + return GSS_S_COMPLETE; + + } else if (gss_oid_equal(desired_object, GSS_KRB5_SEND_TO_KDC_X)) { + + if (value == NULL || value->length == 0) { + krb5_set_send_to_kdc_func(context, NULL, NULL); + } else { + struct gsskrb5_send_to_kdc c; + + if (value->length != sizeof(c)) { + *minor_status = EINVAL; + return GSS_S_FAILURE; + } + memcpy(&c, value->value, sizeof(c)); + krb5_set_send_to_kdc_func(context, + (krb5_send_to_kdc_func)c.func, + c.ptr); + } + + *minor_status = 0; + return GSS_S_COMPLETE; + } else if (gss_oid_equal(desired_object, GSS_KRB5_CCACHE_NAME_X)) { + char *str; + + maj_stat = get_string(minor_status, value, &str); + if (maj_stat != GSS_S_COMPLETE) + return maj_stat; + if (str == NULL) { + *minor_status = 0; + return GSS_S_CALL_INACCESSIBLE_READ; + } + + *minor_status = krb5_cc_set_default_name(context, str); + free(str); + if (*minor_status) + return GSS_S_FAILURE; + + return GSS_S_COMPLETE; + } + + *minor_status = EINVAL; + return GSS_S_FAILURE; +} |
