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/*
Unix SMB/CIFS implementation.
Wrapper for krb5_init_context
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "system/kerberos.h"
#include "auth/kerberos/kerberos.h"
static int smb_krb5_context_destroy_1(void *ptr)
{
struct smb_krb5_context *ctx = ptr;
krb5_free_context(ctx->krb5_context);
return 0;
}
static int smb_krb5_context_destroy_2(void *ptr)
{
struct smb_krb5_context *ctx = ptr;
/* Otherwise krb5_free_context will try and close what we have already free()ed */
krb5_set_warn_dest(ctx->krb5_context, NULL);
krb5_closelog(ctx->krb5_context, ctx->logf);
smb_krb5_context_destroy_1(ptr);
return 0;
}
/* We never close down the DEBUG system, and no need to unreference the use */
static void smb_krb5_debug_close(void *private) {
return;
}
static void smb_krb5_debug_wrapper(const char *timestr, const char *msg, void *private)
{
DEBUG(3, ("Kerberos: %s\n", msg));
}
krb5_error_code smb_krb5_init_context(void *parent_ctx,
struct smb_krb5_context **smb_krb5_context)
{
krb5_error_code ret;
TALLOC_CTX *tmp_ctx;
initialize_krb5_error_table();
tmp_ctx = talloc_new(parent_ctx);
*smb_krb5_context = talloc(tmp_ctx, struct smb_krb5_context);
if (!*smb_krb5_context || !tmp_ctx) {
talloc_free(*smb_krb5_context);
talloc_free(tmp_ctx);
return ENOMEM;
}
ret = krb5_init_context(&(*smb_krb5_context)->krb5_context);
if (ret) {
DEBUG(1,("krb5_init_context failed (%s)\n",
error_message(ret)));
return ret;
}
talloc_set_destructor(*smb_krb5_context, smb_krb5_context_destroy_1);
if (lp_realm() && *lp_realm()) {
char *upper_realm = strupper_talloc(tmp_ctx, lp_realm());
if (!upper_realm) {
DEBUG(1,("gensec_krb5_start: could not uppercase realm: %s\n", lp_realm()));
talloc_free(tmp_ctx);
return ENOMEM;
}
ret = krb5_set_default_realm((*smb_krb5_context)->krb5_context, lp_realm());
if (ret) {
DEBUG(1,("krb5_set_default_realm failed (%s)\n",
smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
talloc_free(tmp_ctx);
return ret;
}
}
/* TODO: Should we have a different name here? */
ret = krb5_initlog((*smb_krb5_context)->krb5_context, "Samba", &(*smb_krb5_context)->logf);
if (ret) {
DEBUG(1,("krb5_initlog failed (%s)\n",
smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
talloc_free(tmp_ctx);
return ret;
}
talloc_set_destructor(*smb_krb5_context, smb_krb5_context_destroy_2);
ret = krb5_addlog_func((*smb_krb5_context)->krb5_context, (*smb_krb5_context)->logf, 0 /* min */, -1 /* max */,
smb_krb5_debug_wrapper, smb_krb5_debug_close, NULL);
if (ret) {
DEBUG(1,("krb5_addlog_func failed (%s)\n",
smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
talloc_free(tmp_ctx);
return ret;
}
krb5_set_warn_dest((*smb_krb5_context)->krb5_context, (*smb_krb5_context)->logf);
talloc_steal(parent_ctx, *smb_krb5_context);
talloc_free(tmp_ctx);
/* Set options in kerberos */
(*smb_krb5_context)->krb5_context->fdns = FALSE;
return 0;
}
void smb_krb5_free_context(struct smb_krb5_context *smb_krb5_context)
{
talloc_free(smb_krb5_context);
}
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