X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fgssd%2Fgss_util.c;fp=utils%2Fgssd%2Fgss_util.c;h=3493280acc050e05756f08f634b28639dccacad6;hp=0000000000000000000000000000000000000000;hb=f1bfe0916c04d93de7a4fae5315fff6e4ccac23f;hpb=981d25a37fe4a71eddd162672a658da223453985 diff --git a/utils/gssd/gss_util.c b/utils/gssd/gss_util.c new file mode 100644 index 0000000..3493280 --- /dev/null +++ b/utils/gssd/gss_util.c @@ -0,0 +1,212 @@ +/* + * Adapted in part from MIT Kerberos 5-1.2.1 slave/kprop.c and from + * http://docs.sun.com/?p=/doc/816-1331/6m7oo9sms&a=view + * + * Copyright (c) 2002 The Regents of the University of Michigan. + * All rights reserved. + * + * Andy Adamson + * J. Bruce Fields + * Marius Aamodt Eriksen + */ + +/* + * slave/kprop.c + * + * Copyright 1990,1991 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. + */ + +/* + * Copyright 1994 by OpenVision Technologies, 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 OpenVision not be used + * in advertising or publicity pertaining to distribution of the software + * without specific, written prior permission. OpenVision makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL OPENVISION 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. + */ +#include "config.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "gss_util.h" +#include "err_util.h" +#include "gssd.h" +#ifdef HAVE_UNISTD_H +#include +#endif +#include +#ifdef HAVE_COM_ERR_H +#include +#endif + +/* Global gssd_credentials handle */ +gss_cred_id_t gssd_creds; + +gss_OID g_mechOid = GSS_C_NULL_OID;; + +#if 0 +static void +display_status_1(char *m, u_int32_t code, int type, const gss_OID mech) +{ + u_int32_t maj_stat, min_stat; + gss_buffer_desc msg = GSS_C_EMPTY_BUFFER; + u_int32_t msg_ctx = 0; + char *typestr; + + switch (type) { + case GSS_C_GSS_CODE: + typestr = "GSS"; + break; + case GSS_C_MECH_CODE: + typestr = "mechanism"; + break; + default: + return; + /* NOTREACHED */ + } + + for (;;) { + maj_stat = gss_display_status(&min_stat, code, + type, mech, &msg_ctx, &msg); + if (maj_stat != GSS_S_COMPLETE) { + printerr(0, "ERROR: in call to " + "gss_display_status called from %s\n", m); + break; + } else { + printerr(0, "ERROR: GSS-API: (%s) error in %s(): %s\n", + typestr, m, (char *)msg.value); + } + + if (msg.length != 0) + (void) gss_release_buffer(&min_stat, &msg); + + if (msg_ctx == 0) + break; + } +} +#endif + +static void +display_status_2(char *m, u_int32_t major, u_int32_t minor, const gss_OID mech) +{ + u_int32_t maj_stat1, min_stat1; + u_int32_t maj_stat2, min_stat2; + gss_buffer_desc maj_gss_buf = GSS_C_EMPTY_BUFFER; + gss_buffer_desc min_gss_buf = GSS_C_EMPTY_BUFFER; + char maj_buf[30], min_buf[30]; + char *maj, *min; + u_int32_t msg_ctx = 0; + + /* Get major status message */ + maj_stat1 = gss_display_status(&min_stat1, major, + GSS_C_GSS_CODE, mech, &msg_ctx, &maj_gss_buf); + + if (maj_stat1 != GSS_S_COMPLETE) { + snprintf(maj_buf, sizeof(maj_buf), "(0x%08x)", major); + maj = &maj_buf[0]; + } else { + maj = maj_gss_buf.value; + } + + /* Get minor status message */ + maj_stat2 = gss_display_status(&min_stat2, minor, + GSS_C_MECH_CODE, mech, &msg_ctx, &min_gss_buf); + + if (maj_stat2 != GSS_S_COMPLETE) { + snprintf(min_buf, sizeof(min_buf), "(0x%08x)", minor); + min = &min_buf[0]; + } else { + min = min_gss_buf.value; + } + + printerr(0, "ERROR: GSS-API: error in %s(): %s - %s\n", + m, maj, min); + + if (maj_gss_buf.length != 0) + (void) gss_release_buffer(&min_stat1, &maj_gss_buf); + if (min_gss_buf.length != 0) + (void) gss_release_buffer(&min_stat2, &min_gss_buf); +} + +void +pgsserr(char *msg, u_int32_t maj_stat, u_int32_t min_stat, const gss_OID mech) +{ + display_status_2(msg, maj_stat, min_stat, mech); +} + +int +gssd_acquire_cred(char *server_name) +{ + gss_buffer_desc name; + gss_name_t target_name; + u_int32_t maj_stat, min_stat; + u_int32_t ignore_maj_stat, ignore_min_stat; + + name.value = (void *)server_name; + name.length = strlen(server_name); + + maj_stat = gss_import_name(&min_stat, &name, + (const gss_OID) GSS_C_NT_HOSTBASED_SERVICE, + &target_name); + + if (maj_stat != GSS_S_COMPLETE) { + pgsserr("gss_import_name", maj_stat, min_stat, g_mechOid); + return (FALSE); + } + + maj_stat = gss_acquire_cred(&min_stat, target_name, 0, + GSS_C_NULL_OID_SET, GSS_C_ACCEPT, + &gssd_creds, NULL, NULL); + + ignore_maj_stat = gss_release_name(&ignore_min_stat, &target_name); + + if (maj_stat != GSS_S_COMPLETE) + pgsserr("gss_acquire_cred", maj_stat, min_stat, g_mechOid); + + return (maj_stat == GSS_S_COMPLETE); +}