+++ /dev/null
-/* #ident "@(#)gss_acquire_cred.c 1.19 95/08/07 SMI" */
-
-/*
- * Copyright 1996 by Sun Microsystems, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appears in all copies and
- * that both that copyright notice and this permission notice appear in
- * supporting documentation, and that the name of Sun Microsystems not be used
- * in advertising or publicity pertaining to distribution of the software
- * without specific, written prior permission. Sun Microsystems makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- *
- * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
- * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
- * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-/*
- * glue routine for gss_acquire_cred
- */
-
-#include "mglueP.h"
-#include <stdio.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#include <string.h>
-#include <errno.h>
-#include <time.h>
-
-#define g_OID_equal(o1,o2) \
- (((o1)->length == (o2)->length) && \
- (memcmp((o1)->elements,(o2)->elements,(int) (o1)->length) == 0))
-
-static gss_OID_set
-create_actual_mechs(creds)
- gss_union_cred_t creds;
-{
- gss_OID_set actual_mechs;
- int i;
-
- actual_mechs = (gss_OID_set) malloc(sizeof(gss_OID_set_desc));
- if (!actual_mechs)
- return NULL;
-
- actual_mechs->elements = (gss_OID)
- malloc(sizeof(gss_OID_desc) * creds->count);
- if (!actual_mechs->elements) {
- free(actual_mechs);
- return NULL;
- }
-
- actual_mechs->count = creds->count;
-
- for (i=0; i < creds->count; i++) {
- actual_mechs->elements[i].length = creds->mechs_array[i].length;
- actual_mechs->elements[i].elements = (void *)
- malloc(creds->mechs_array[i].length);
- memcpy(actual_mechs->elements[i].elements,
- creds->mechs_array[i].elements, creds->mechs_array[i].length);
- }
-
- return actual_mechs;
-}
-
-
-OM_uint32 KRB5_CALLCONV
-gss_acquire_cred(minor_status,
- desired_name,
- time_req,
- desired_mechs,
- cred_usage,
- output_cred_handle,
- actual_mechs,
- time_rec)
-
-OM_uint32 * minor_status;
-gss_name_t desired_name;
-OM_uint32 time_req;
-gss_OID_set desired_mechs;
-int cred_usage;
-gss_cred_id_t * output_cred_handle;
-gss_OID_set * actual_mechs;
-OM_uint32 * time_rec;
-
-{
- OM_uint32 status, temp_minor_status, temp_time_rec = ~0;
- unsigned int i, j, creds_acquired = 0;
- int k;
- gss_union_name_t union_name;
- gss_name_t internal_name;
- gss_union_cred_t creds;
- gss_OID_set_desc default_OID_set;
- gss_OID_desc default_OID;
- gss_OID specific_mech_type = 0;
- gss_mechanism mech;
-
- /*
- * This struct is used to keep track of which mech_types are
- * actually available and to store the credentials returned
- * from them by each mechanism specific gss_acquire_cred() call.
- * The results are used to construct the final union_cred
- * structure returned by the glue layer gss_acquire_cred() call
- * and the actual_mechs gss_OID_set returned.
- */
-
- struct creds_returned {
- unsigned char available;
- gss_cred_id_t cred;
- } *creds_returned;
-
- gss_initialize();
-
- /* Set this to NULL for now */
-
- if (actual_mechs)
- *actual_mechs = GSS_C_NULL_OID_SET;
-
- if (minor_status)
- *minor_status = 0;
-
- /* No need to continue if we don't have a place to store the creds */
- if (output_cred_handle == NULL)
- return GSS_S_COMPLETE;
-
- /* get desired_name cast as a union_name type */
-
- union_name = (gss_union_name_t) desired_name;
-
- if (union_name)
- specific_mech_type = union_name->mech_type;
-
- /*
- * if desired_mechs equals GSS_C_NULL_OID_SET, then pick an
- * appropriate default.
- */
- if(desired_mechs == GSS_C_NULL_OID_SET) {
- /*
- * If union_name->mech_type is NULL then we get the default
- * mechanism; otherwise, we get the mechanism for the
- * mechanism-specific name.
- */
- mech = __gss_get_mechanism(specific_mech_type);
- if (mech == NULL)
- return (GSS_S_BAD_MECH);
-
- desired_mechs = &default_OID_set;
- default_OID_set.count = 1 ;
- default_OID_set.elements = &default_OID;
- default_OID.length = mech->mech_type.length;
- default_OID.elements = mech->mech_type.elements;
- }
-
- /*
- * Now allocate the creds returned array. There is one element
- * for each member of the desired_mechs argument.
- */
-
- creds_returned = (struct creds_returned *)
- malloc(sizeof(struct creds_returned) * desired_mechs->count);
-
- /*
- * For each requested mechanism in desired_mechs, determine if it
- * is supported. If so, mark the corresponding element in
- * creds_returned->available as 1 and call the mechanism
- * specific gss_acquire_cred(), placing the returned cred in
- * creds_returned->cred. If not, mark creds_returned->available as
- * 0.
- */
- status = GSS_S_BAD_MECH;
- for (j=0; j < desired_mechs->count; j++) {
- creds_returned[j].available = 0;
-
- mech = __gss_get_mechanism (&desired_mechs->elements[j]);
- if (!mech || !mech->gss_acquire_cred)
- continue;
- /*
- * If this is a mechanism-specific name, then only use the
- * mechanism of the name.
- */
- if (specific_mech_type && !g_OID_equal(specific_mech_type,
- &mech->mech_type))
- continue;
- /*
- * If this is not a mechanism-specific name, then we need to
- * do an import the external name in union_name first.
- */
- if (union_name == 0)
- internal_name = (gss_name_t) 0;
- else if (!union_name->mech_type) {
- if (__gss_import_internal_name(&temp_minor_status,
- &mech->mech_type,
- union_name, &internal_name)) {
- continue;
- }
- } else
- internal_name = union_name->mech_name;
-
-#ifdef USE_MECH_CONTEXT
- status = mech->gss_acquire_cred(mech->context, minor_status,
-#else
- status = mech->gss_acquire_cred(minor_status,
-#endif
- internal_name, time_req,
- desired_mechs, cred_usage,
- &creds_returned[j].cred,
- NULL, &temp_time_rec);
-
- /* Release the internal name, if allocated above */
- if (union_name && !union_name->mech_type) {
- (void) __gss_release_internal_name(&temp_minor_status,
- &mech->mech_type,
- &internal_name);
- }
-
- if (status != GSS_S_COMPLETE)
- continue;
-
- /*
- * Add this into the creds_returned structure, if we got
- * a good credential for this mechanism.
- */
- if (time_rec) {
- *time_rec = *time_rec > temp_time_rec ? temp_time_rec : *time_rec;
- temp_time_rec = *time_rec;
- }
-
- creds_returned[j].available = 1;
- creds_acquired++;
-
- /*
- * If union_name is set, then we're done. Continue, and
- * declare success. Otherwise, if do an inquire credentials
- * from the first mechanism that succeeds and use that as the
- * union name.
- */
- if (union_name)
- continue;
-
-#ifdef USE_MECH_CONTEXT
- status = mech->gss_inquire_cred(mech->context, &temp_minor_status,
-#else
- status = mech->gss_inquire_cred(&temp_minor_status,
-#endif
- creds_returned[j].cred,
- &internal_name, 0, 0, 0);
- if (status) {
- /* Should never happen */
- creds_returned[j].available = 0;
- creds_acquired--;
- if (mech->gss_release_cred)
-#ifdef USE_MECH_CONTEXT
- mech->gss_release_cred(mech->context, minor_status,
-#else
- mech->gss_release_cred(minor_status,
-#endif
- &creds_returned[j].cred);
- continue;
- }
-
- status = __gss_convert_name_to_union_name(&temp_minor_status, mech,
- internal_name,
- (gss_name_t *) &union_name);
- }
-
- /*
- * Now allocate the creds struct, which will be cast as a gss_cred_id_t
- * and returned in the output_cred_handle argument. If there were
- * no credentials found, return an error. Also, allocate the
- * actual_mechs data.
- */
- if (creds_acquired == 0) {
- free (creds_returned);
- return (status);
- }
-
- creds = (gss_union_cred_t) malloc(sizeof(gss_union_cred_desc));
-
- creds->count = creds_acquired;
-
- creds->mechs_array = (gss_OID)
- malloc(sizeof(gss_OID_desc) * creds_acquired);
-
- creds->cred_array = (gss_cred_id_t *)
- malloc(sizeof(gss_cred_id_t) * creds_acquired);
-
- if(actual_mechs != NULL) {
- *actual_mechs = (gss_OID_set) malloc(sizeof(gss_OID_set_desc));
-
- (*actual_mechs)->count = creds_acquired;
-
- (*actual_mechs)->elements = (gss_OID)
- malloc(sizeof(gss_OID_desc) * creds_acquired);
- }
-
- /*
- * copy the mechanisms found and their allocated credentials into the
- * creds structure. At the same time, build up the actual_mechs
- * data.
- */
-
- j = 0;
-
- for (i=0; i<desired_mechs->count; i++) {
- if(creds_returned[i].available) {
-
- creds->mechs_array[j].length =
- desired_mechs->elements[i].length;
- creds->mechs_array[j].elements = (void *)
- malloc(desired_mechs->elements[i].length);
- memcpy(creds->mechs_array[j].elements,
- desired_mechs->elements[i].elements,
- desired_mechs->elements[i].length);
- creds->cred_array[j] = creds_returned[i].cred;
- if (actual_mechs) {
- (*actual_mechs)->elements[j].length =
- desired_mechs->elements[i].length;
- (*actual_mechs)->elements[j].elements = (void *)
- malloc(desired_mechs->elements[i].length);
- memcpy((*actual_mechs)->elements[j].elements,
- desired_mechs->elements[i].elements,
- desired_mechs->elements[i].length);
- }
- j++;
- }
- }
-
- /* free the creds_returned struct, since we are done with it. */
-
- free(creds_returned);
-
- /* record the information needed for gss_inquire_cred() */
-
- creds->auxinfo.creation_time = time(0);
- creds->auxinfo.time_rec = temp_time_rec;
- creds->auxinfo.cred_usage = cred_usage;
-
- /*
- * we can't just record the internal name, desired_name, since
- * it may be destroyed between now and the time gss_inquire_cred()
- * is called. So we must record the printable name in a
- * gss_buffer_t, calling gss_display_name() to fill it in. When
- * gss_inquire_name() is called, we must then call gss_import_name()
- * to get the internal name that is required at that point.
- */
- if (desired_name) {
- status = gss_display_name(&temp_minor_status, desired_name,
- &creds->auxinfo.name,
- &creds->auxinfo.name_type);
- if (status) {
- status = GSS_S_BAD_NAME;
- goto error_out;
- }
- } else {
- status = gss_display_name(&temp_minor_status, union_name,
- &creds->auxinfo.name,
- &creds->auxinfo.name_type);
- if (status) {
- status = GSS_S_BAD_NAME;
- goto error_out;
- }
- }
-
- *output_cred_handle = (gss_cred_id_t) creds;
- return(GSS_S_COMPLETE);
-
-error_out:
- for (k=0; k < creds->count; k++) {
- free(creds->mechs_array[k].elements);
- if (actual_mechs)
- free((*actual_mechs)->elements[k].elements);
- }
-
- if (actual_mechs) {
- free((*actual_mechs)->elements);
- free(*actual_mechs);
- *actual_mechs = GSS_C_NULL_OID_SET;
- }
- free(creds->cred_array);
- free(creds->mechs_array);
- free(creds);
-
- return(status);
-}
-
-/* V2 KRB5_CALLCONV */
-OM_uint32 KRB5_CALLCONV
-gss_add_cred(minor_status, input_cred_handle,
- desired_name, desired_mech, cred_usage,
- initiator_time_req, acceptor_time_req,
- output_cred_handle, actual_mechs,
- initiator_time_rec, acceptor_time_rec)
- OM_uint32 *minor_status;
- gss_cred_id_t input_cred_handle;
- gss_name_t desired_name;
- gss_OID desired_mech;
- gss_cred_usage_t cred_usage;
- OM_uint32 initiator_time_req;
- OM_uint32 acceptor_time_req;
- gss_cred_id_t *output_cred_handle;
- gss_OID_set *actual_mechs;
- OM_uint32 *initiator_time_rec;
- OM_uint32 *acceptor_time_rec;
-{
- OM_uint32 status, temp_minor_status;
- OM_uint32 time_req, time_rec;
- gss_union_name_t union_name;
- gss_union_cred_t new_union_cred, union_cred;
- gss_name_t internal_name;
- gss_mechanism mech;
- gss_cred_id_t cred;
- gss_OID new_mechs_array;
- gss_cred_id_t * new_cred_array;
-
- if (input_cred_handle == GSS_C_NO_CREDENTIAL)
- return GSS_S_NO_CRED;
-
- union_cred = (gss_union_cred_t) input_cred_handle;
-
- mech = __gss_get_mechanism(desired_mech);
- if (!mech)
- return GSS_S_BAD_MECH;
-
- if (__gss_get_mechanism_cred(union_cred, desired_mech) !=
- GSS_C_NO_CREDENTIAL)
- return GSS_S_DUPLICATE_ELEMENT;
-
- union_name = (gss_union_name_t) desired_name;
- if (union_name->mech_type) {
- if (!g_OID_equal(desired_mech, union_name->mech_type))
- return GSS_S_BAD_NAMETYPE;
- internal_name = union_name->mech_name;
- } else {
- if (__gss_import_internal_name(minor_status, desired_mech,
- union_name, &internal_name))
- return (GSS_S_BAD_NAME);
- }
-
- if (cred_usage == GSS_C_ACCEPT)
- time_req = acceptor_time_req;
- else if (cred_usage == GSS_C_INITIATE)
- time_req = initiator_time_req;
- else if (cred_usage == GSS_C_BOTH)
- time_req = (acceptor_time_req > initiator_time_req) ?
- acceptor_time_req : initiator_time_req;
-
-#ifdef USE_MECH_CONTEXT
- status = mech->gss_acquire_cred(mech->context, minor_status,
-#else
- status = mech->gss_acquire_cred(minor_status,
-#endif
- internal_name, time_req,
- GSS_C_NULL_OID_SET, cred_usage,
- &cred, NULL, &time_rec);
- if (status != GSS_S_COMPLETE)
- goto errout;
-
- new_mechs_array = (gss_OID)
- malloc(sizeof(gss_OID_desc) * (union_cred->count+1));
-
- new_cred_array = (gss_cred_id_t *)
- malloc(sizeof(gss_cred_id_t) * (union_cred->count+1));
-
- if (!new_mechs_array || !new_cred_array) {
- *minor_status = ENOMEM;
- status = GSS_S_FAILURE;
- goto errout;
- }
-
-
- if (acceptor_time_rec)
- if (cred_usage == GSS_C_ACCEPT || cred_usage == GSS_C_BOTH)
- *acceptor_time_rec = time_rec;
- if (initiator_time_rec)
- if (cred_usage == GSS_C_INITIATE || cred_usage == GSS_C_BOTH)
- *initiator_time_rec = time_rec;
-
- /*
- * OK, expand the mechanism array in the union credentials
- * (Look for the union label...)
- */
- memcpy(new_mechs_array, union_cred->mechs_array,
- sizeof(gss_OID_desc) * union_cred->count);
- memcpy(new_cred_array, union_cred->cred_array,
- sizeof(gss_cred_id_t) * union_cred->count);
-
- new_cred_array[union_cred->count] = cred;
- new_mechs_array[union_cred->count].length = desired_mech->length;
- new_mechs_array[union_cred->count].elements = malloc(desired_mech->length);
- if (!new_mechs_array[union_cred->count].elements) {
- *minor_status = ENOMEM;
- goto errout;
- }
- memcpy(new_mechs_array[union_cred->count].elements, desired_mech->elements,
- desired_mech->length);
-
- if (output_cred_handle == NULL) {
- free(union_cred->mechs_array);
- free(union_cred->cred_array);
- new_union_cred = union_cred;
- } else {
- new_union_cred = malloc(sizeof(gss_union_cred_desc));
- if (new_union_cred == NULL) {
- *minor_status = ENOMEM;
- goto errout;
- }
- *new_union_cred = *union_cred;
- *output_cred_handle = new_union_cred;
- }
- new_union_cred->mechs_array = new_mechs_array;
- new_union_cred->cred_array = new_cred_array;
- new_union_cred->count++;
- new_mechs_array = 0;
- new_cred_array = 0;
-
- if (actual_mechs)
- *actual_mechs = create_actual_mechs(new_union_cred);
-
- status = GSS_S_COMPLETE;
-
-errout:
- if (new_mechs_array)
- free(new_mechs_array);
- if (new_cred_array)
- free(new_cred_array);
- if (!union_name->mech_type) {
- (void) __gss_release_internal_name(&temp_minor_status,
- desired_mech, &internal_name);
- }
-
- return(status);
-}
projects / nfs-utils.git / blobdiff