e0d86f9a33
Added validation of NAT access strings in the various NAT modes in libfko. This applies to both the client and server, and test suite support was added as well.
106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
/*
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*****************************************************************************
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*
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* File: fko_nat_access.c
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*
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* Author: Damien S. Stuart
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*
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* Purpose: Set/Get the spa nat access request data.
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*
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* Copyright 2009-2010 Damien Stuart (dstuart@dstuart.org)
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*
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* License (GNU Public License):
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*
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*****************************************************************************
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*/
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#include "fko_common.h"
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#include "fko.h"
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/* Set the SPA Nat Access data
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*/
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int
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fko_set_spa_nat_access(fko_ctx_t ctx, const char *msg)
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{
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int res = FKO_SUCCESS;
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/* Context must be initialized.
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*/
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if(!CTX_INITIALIZED(ctx))
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return FKO_ERROR_CTX_NOT_INITIALIZED;
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/* Gotta have a valid string.
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*/
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if(msg == NULL || strnlen(msg, MAX_SPA_NAT_ACCESS_SIZE) == 0)
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return(FKO_ERROR_INVALID_DATA);
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/* --DSS XXX: Bail out for now. But consider just
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* truncating in the future...
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*/
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if(strnlen(msg, MAX_SPA_NAT_ACCESS_SIZE) == MAX_SPA_NAT_ACCESS_SIZE)
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return(FKO_ERROR_DATA_TOO_LARGE);
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if((res = validate_nat_access_msg(msg)) != FKO_SUCCESS)
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return(res);
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/* Just in case this is a subsquent call to this function. We
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* do not want to be leaking memory.
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*/
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if(ctx->nat_access != NULL)
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free(ctx->nat_access);
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ctx->nat_access = strdup(msg);
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ctx->state |= FKO_DATA_MODIFIED;
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if(ctx->nat_access == NULL)
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return(FKO_ERROR_MEMORY_ALLOCATION);
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/* If we set the nat_access message Then we force the message_type
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* as well. Technically, the message type should be set already.
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* This will serve a half-protective measure.
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* --DSS XXX: should do this better.
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*/
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if(ctx->client_timeout > 0)
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{
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if(ctx->message_type != FKO_CLIENT_TIMEOUT_LOCAL_NAT_ACCESS_MSG)
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ctx->message_type = FKO_CLIENT_TIMEOUT_NAT_ACCESS_MSG;
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}
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else
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if(ctx->message_type != FKO_LOCAL_NAT_ACCESS_MSG)
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ctx->message_type = FKO_NAT_ACCESS_MSG;
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return(FKO_SUCCESS);
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}
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/* Return the SPA message data.
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*/
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int
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fko_get_spa_nat_access(fko_ctx_t ctx, char **nat_access)
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{
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/* Must be initialized
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*/
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if(!CTX_INITIALIZED(ctx))
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return(FKO_ERROR_CTX_NOT_INITIALIZED);
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*nat_access = ctx->nat_access;
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return(FKO_SUCCESS);
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}
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/***EOF***/
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