+++ /dev/null
-/*
- * lib/gssapi/generic/oid_ops.c
- *
- * Copyright 1995 by the Massachusetts Institute of Technology.
- * All Rights Reserved.
- *
- * Export of this software from the United States of America may
- * require a specific license from the United States Government.
- * It is the responsibility of any person or organization contemplating
- * export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission. Furthermore if you modify this software you must label
- * your software as modified software and not distribute it in such a
- * fashion that it might be confused with the original M.I.T. software.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is" without express
- * or implied warranty.
- *
- */
-
-/*
- * oid_ops.c - GSS-API V2 interfaces to manipulate OIDs
- */
-
-#include "mglueP.h"
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-#include <ctype.h>
-
-OM_uint32
-generic_gss_release_oid(minor_status, oid)
- OM_uint32 *minor_status;
- gss_OID *oid;
-{
- *minor_status = 0;
-#ifdef DEBUG
- static int printed = 0;
-
- if (!printed++)
- fprintf(stderr, "gss_generic_release_oid (glue):\n"
- " GSS_C_NT_USER_NAME %p\n"
- " GSS_C_NT_MACHINE_UID_NAME %p\n"
- " GSS_C_NT_STRING_UID_NAME %p\n"
- " GSS_C_NT_HOSTBASED_SERVICE %p\n"
- " GSS_C_NT_ANONYMOUS %p\n"
- " GSS_C_NT_EXPORT_NAME %p\n",
- GSS_C_NT_USER_NAME, GSS_C_NT_MACHINE_UID_NAME,
- GSS_C_NT_STRING_UID_NAME, GSS_C_NT_HOSTBASED_SERVICE,
- GSS_C_NT_ANONYMOUS, GSS_C_NT_EXPORT_NAME);
-#endif
-
- if (*oid == GSS_C_NO_OID)
- return(GSS_S_COMPLETE);
-
- /*
- * The V2 API says the following!
- *
- * gss_release_oid[()] will recognize any of the GSSAPI's own OID values,
- * and will silently ignore attempts to free these OIDs; for other OIDs
- * it will call the C free() routine for both the OID data and the
- * descriptor. This allows applications to freely mix their own heap-
- * allocated OID values with OIDs returned by GSS-API.
- */
- if ((*oid != GSS_C_NT_USER_NAME) &&
- (*oid != GSS_C_NT_MACHINE_UID_NAME) &&
- (*oid != GSS_C_NT_STRING_UID_NAME) &&
- (*oid != GSS_C_NT_HOSTBASED_SERVICE) &&
- (*oid != GSS_C_NT_ANONYMOUS) &&
- (*oid != GSS_C_NT_EXPORT_NAME)) {
-#ifdef DEBUG
- fprintf(stderr, "generic_gss_release_oid (glue): freeing *oid at %p\n",
- *oid);
-#endif
- free((*oid)->elements);
- free(*oid);
- }
- *oid = GSS_C_NO_OID;
- return(GSS_S_COMPLETE);
-}
-
-OM_uint32
-mech_gss_release_oid(minor_status, oid, gss_mech)
- OM_uint32 *minor_status;
- gss_OID *oid;
- gss_mechanism gss_mech;
-{
- *minor_status = 0;
-
-#ifdef DEBUG
- fprintf(stderr, "mech_gss_release_oid: *oid %p, gss_mech %p\n",
- *oid, gss_mech);
-#endif
- if (*oid == GSS_C_NO_OID)
- return (GSS_S_COMPLETE);
-
- if (gss_mech == NULL) {
-#ifdef DEBUG
- fprintf(stderr, "mech_gss_release_oid: no gss_mech!\n");
-#endif
- return (generic_gss_release_oid(minor_status, oid));
- }
-
- if (!gss_mech->gss_internal_release_oid) {
-#ifdef DEBUG
- fprintf(stderr, "mech_gss_release_oid: mechanism has "
- "no gss_internal_release_oid function! using "
- "generic_gss_release_oid\n");
-#endif
- return (generic_gss_release_oid(minor_status, oid));
- }
-
-#ifdef DEBUG
- fprintf(stderr, "mech_gss_release_oid: calling mechanism's "
- "gss_internal_release_oid\n");
-#endif
- return (gss_mech->gss_internal_release_oid(minor_status, oid));
-}
-
-OM_uint32
-generic_gss_copy_oid(minor_status, oid, new_oid)
- OM_uint32 *minor_status;
- gss_OID oid, *new_oid;
-{
- gss_OID p;
-
- if (oid == GSS_C_NO_OID) {
- *new_oid = GSS_C_NO_OID;
- return (GSS_S_COMPLETE);
- }
-
- p = (gss_OID) malloc(sizeof(gss_OID_desc));
- if (!p) {
- *minor_status = ENOMEM;
- return GSS_S_FAILURE;
- }
- p->length = oid->length;
- p->elements = malloc(p->length);
- if (!p->elements) {
- free(p);
- *minor_status = ENOMEM;
- return GSS_S_FAILURE;
- }
- memcpy(p->elements, oid->elements, p->length);
- *new_oid = p;
- return (GSS_S_COMPLETE);
-}
-
-
-OM_uint32
-generic_gss_create_empty_oid_set(minor_status, oid_set)
- OM_uint32 *minor_status;
- gss_OID_set *oid_set;
-{
- if ((*oid_set = (gss_OID_set) malloc(sizeof(gss_OID_set_desc)))) {
- memset(*oid_set, 0, sizeof(gss_OID_set_desc));
- *minor_status = 0;
- return(GSS_S_COMPLETE);
- }
- else {
- *minor_status = ENOMEM;
- return(GSS_S_FAILURE);
- }
-}
-
-OM_uint32
-generic_gss_add_oid_set_member(minor_status, member_oid, oid_set)
- OM_uint32 *minor_status;
- gss_OID member_oid;
- gss_OID_set *oid_set;
-{
- gss_OID elist;
- gss_OID lastel;
-
- elist = (*oid_set)->elements;
- /* Get an enlarged copy of the array */
- if (((*oid_set)->elements = (gss_OID) malloc(((*oid_set)->count+1) *
- sizeof(gss_OID_desc)))) {
- /* Copy in the old junk */
- if (elist)
- memcpy((*oid_set)->elements,
- elist,
- ((*oid_set)->count * sizeof(gss_OID_desc)));
-
- /* Duplicate the input element */
- lastel = &(*oid_set)->elements[(*oid_set)->count];
- if ((lastel->elements =
- (void *) malloc((size_t) member_oid->length))) {
- /* Success - copy elements */
- memcpy(lastel->elements, member_oid->elements,
- (size_t) member_oid->length);
- /* Set length */
- lastel->length = member_oid->length;
-
- /* Update count */
- (*oid_set)->count++;
- if (elist)
- free(elist);
- *minor_status = 0;
- return(GSS_S_COMPLETE);
- }
- else
- free((*oid_set)->elements);
- }
- /* Failure - restore old contents of list */
- (*oid_set)->elements = elist;
- *minor_status = ENOMEM;
- return(GSS_S_FAILURE);
-}
-
-OM_uint32
-generic_gss_test_oid_set_member(minor_status, member, set, present)
- OM_uint32 *minor_status;
- gss_OID member;
- gss_OID_set set;
- int *present;
-{
- size_t i;
- int result;
-
- result = 0;
- for (i=0; i<set->count; i++) {
- if ((set->elements[i].length == member->length) &&
- !memcmp(set->elements[i].elements,
- member->elements,
- (size_t) member->length)) {
- result = 1;
- break;
- }
- }
- *present = result;
- *minor_status = 0;
- return(GSS_S_COMPLETE);
-}
-
-/*
- * OID<->string routines. These are uuuuugly.
- */
-OM_uint32
-generic_gss_oid_to_str(minor_status, oid, oid_str)
- OM_uint32 *minor_status;
- gss_OID oid;
- gss_buffer_t oid_str;
-{
- char numstr[128];
- unsigned long number;
- int numshift;
- size_t string_length;
- size_t i;
- unsigned char *cp;
- char *bp;
-
- /* Decoded according to krb5/gssapi_krb5.c */
-
- /* First determine the size of the string */
- string_length = 0;
- number = 0;
- numshift = 0;
- cp = (unsigned char *) oid->elements;
- number = (unsigned long) cp[0];
- sprintf(numstr, "%ld ", number/40);
- string_length += strlen(numstr);
- sprintf(numstr, "%ld ", number%40);
- string_length += strlen(numstr);
- for (i=1; i<oid->length; i++) {
- if ( (size_t) (numshift+7) < (sizeof(unsigned long)*8)) {
- number = (number << 7) | (cp[i] & 0x7f);
- numshift += 7;
- }
- else {
- *minor_status = EINVAL;
- return(GSS_S_FAILURE);
- }
- if ((cp[i] & 0x80) == 0) {
- sprintf(numstr, "%ld ", number);
- string_length += strlen(numstr);
- number = 0;
- numshift = 0;
- }
- }
- /*
- * If we get here, we've calculated the length of "n n n ... n ". Add 4
- * here for "{ " and "}\0".
- */
- string_length += 4;
- if ((bp = (char *) malloc(string_length))) {
- strcpy(bp, "{ ");
- number = (unsigned long) cp[0];
- sprintf(numstr, "%ld ", number/40);
- strcat(bp, numstr);
- sprintf(numstr, "%ld ", number%40);
- strcat(bp, numstr);
- number = 0;
- cp = (unsigned char *) oid->elements;
- for (i=1; i<oid->length; i++) {
- number = (number << 7) | (cp[i] & 0x7f);
- if ((cp[i] & 0x80) == 0) {
- sprintf(numstr, "%ld ", number);
- strcat(bp, numstr);
- number = 0;
- }
- }
- strcat(bp, "}");
- oid_str->length = strlen(bp)+1;
- oid_str->value = (void *) bp;
- *minor_status = 0;
- return(GSS_S_COMPLETE);
- }
- *minor_status = ENOMEM;
- return(GSS_S_FAILURE);
-}
-
-OM_uint32
-generic_gss_str_to_oid(minor_status, oid_str, oid)
- OM_uint32 *minor_status;
- gss_buffer_t oid_str;
- gss_OID *oid;
-{
- char *cp, *bp, *startp;
- int brace;
- long numbuf;
- long onumbuf;
- OM_uint32 nbytes;
- int index;
- unsigned char *op;
-
- brace = 0;
- bp = (char *) oid_str->value;
- cp = bp;
- /* Skip over leading space */
- while ((bp < &cp[oid_str->length]) && isspace(*bp))
- bp++;
- if (*bp == '{') {
- brace = 1;
- bp++;
- }
- while ((bp < &cp[oid_str->length]) && isspace(*bp))
- bp++;
- startp = bp;
- nbytes = 0;
-
- /*
- * The first two numbers are chewed up by the first octet.
- */
- if (sscanf(bp, "%ld", &numbuf) != 1) {
- *minor_status = EINVAL;
- return(GSS_S_FAILURE);
- }
- while ((bp < &cp[oid_str->length]) && isdigit(*bp))
- bp++;
- while ((bp < &cp[oid_str->length]) && isspace(*bp))
- bp++;
- if (sscanf(bp, "%ld", &numbuf) != 1) {
- *minor_status = EINVAL;
- return(GSS_S_FAILURE);
- }
- while ((bp < &cp[oid_str->length]) && isdigit(*bp))
- bp++;
- while ((bp < &cp[oid_str->length]) && isspace(*bp))
- bp++;
- nbytes++;
- while (isdigit(*bp)) {
- if (sscanf(bp, "%ld", &numbuf) != 1) {
- *minor_status = EINVAL;
- return(GSS_S_FAILURE);
- }
- while (numbuf) {
- nbytes++;
- numbuf >>= 7;
- }
- while ((bp < &cp[oid_str->length]) && isdigit(*bp))
- bp++;
- while ((bp < &cp[oid_str->length]) && isspace(*bp))
- bp++;
- }
- if (brace && (*bp != '}')) {
- *minor_status = EINVAL;
- return(GSS_S_FAILURE);
- }
-
- /*
- * Phew! We've come this far, so the syntax is good.
- */
- if ((*oid = (gss_OID) malloc(sizeof(gss_OID_desc)))) {
- if (((*oid)->elements = (void *) malloc((size_t) nbytes))) {
- (*oid)->length = nbytes;
- op = (unsigned char *) (*oid)->elements;
- bp = startp;
- sscanf(bp, "%ld", &numbuf);
- while (isdigit(*bp))
- bp++;
- while (isspace(*bp))
- bp++;
- onumbuf = 40*numbuf;
- sscanf(bp, "%ld", &numbuf);
- onumbuf += numbuf;
- *op = (unsigned char) onumbuf;
- op++;
- while (isdigit(*bp))
- bp++;
- while (isspace(*bp))
- bp++;
- while (isdigit(*bp)) {
- sscanf(bp, "%ld", &numbuf);
- nbytes = 0;
- /* Have to fill in the bytes msb-first */
- onumbuf = numbuf;
- while (numbuf) {
- nbytes++;
- numbuf >>= 7;
- }
- numbuf = onumbuf;
- op += nbytes;
- index = -1;
- while (numbuf) {
- op[index] = (unsigned char) numbuf & 0x7f;
- if (index != -1)
- op[index] |= 0x80;
- index--;
- numbuf >>= 7;
- }
- while (isdigit(*bp))
- bp++;
- while (isspace(*bp))
- bp++;
- }
- *minor_status = 0;
- return(GSS_S_COMPLETE);
- }
- else {
- free(*oid);
- *oid = GSS_C_NO_OID;
- }
- }
- *minor_status = ENOMEM;
- return(GSS_S_FAILURE);
-}
-
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