- import of strongswan-2.7.0
- applied patch for charon
This commit is contained in:
Martin Willi
@@ -0,0 +1,255 @@
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/*
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* Copyright (C) 2000, 2001 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
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* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id: lwres_noop.c,v 1.1 2004/03/15 20:35:25 as Exp $ */
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#include <config.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <lwres/lwbuffer.h>
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#include <lwres/lwpacket.h>
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#include <lwres/lwres.h>
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#include <lwres/result.h>
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#include "context_p.h"
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#include "assert_p.h"
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lwres_result_t
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lwres_nooprequest_render(lwres_context_t *ctx, lwres_nooprequest_t *req,
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lwres_lwpacket_t *pkt, lwres_buffer_t *b)
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{
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unsigned char *buf;
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size_t buflen;
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int ret;
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size_t payload_length;
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REQUIRE(ctx != NULL);
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REQUIRE(req != NULL);
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REQUIRE(pkt != NULL);
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REQUIRE(b != NULL);
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payload_length = sizeof(lwres_uint16_t) + req->datalength;
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buflen = LWRES_LWPACKET_LENGTH + payload_length;
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buf = CTXMALLOC(buflen);
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if (buf == NULL)
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return (LWRES_R_NOMEMORY);
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lwres_buffer_init(b, buf, buflen);
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pkt->length = buflen;
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pkt->version = LWRES_LWPACKETVERSION_0;
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pkt->pktflags &= ~LWRES_LWPACKETFLAG_RESPONSE;
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pkt->opcode = LWRES_OPCODE_NOOP;
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pkt->result = 0;
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pkt->authtype = 0;
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pkt->authlength = 0;
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ret = lwres_lwpacket_renderheader(b, pkt);
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if (ret != LWRES_R_SUCCESS) {
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lwres_buffer_invalidate(b);
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CTXFREE(buf, buflen);
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return (ret);
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}
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INSIST(SPACE_OK(b, payload_length));
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/*
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* Put the length and the data. We know this will fit because we
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* just checked for it.
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*/
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lwres_buffer_putuint16(b, req->datalength);
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lwres_buffer_putmem(b, req->data, req->datalength);
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INSIST(LWRES_BUFFER_AVAILABLECOUNT(b) == 0);
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return (LWRES_R_SUCCESS);
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}
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lwres_result_t
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lwres_noopresponse_render(lwres_context_t *ctx, lwres_noopresponse_t *req,
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lwres_lwpacket_t *pkt, lwres_buffer_t *b)
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{
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unsigned char *buf;
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size_t buflen;
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int ret;
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size_t payload_length;
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REQUIRE(ctx != NULL);
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REQUIRE(req != NULL);
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REQUIRE(pkt != NULL);
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REQUIRE(b != NULL);
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payload_length = sizeof(lwres_uint16_t) + req->datalength;
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buflen = LWRES_LWPACKET_LENGTH + payload_length;
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buf = CTXMALLOC(buflen);
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if (buf == NULL)
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return (LWRES_R_NOMEMORY);
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lwres_buffer_init(b, buf, buflen);
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pkt->length = buflen;
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pkt->version = LWRES_LWPACKETVERSION_0;
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pkt->pktflags |= LWRES_LWPACKETFLAG_RESPONSE;
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pkt->opcode = LWRES_OPCODE_NOOP;
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pkt->authtype = 0;
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pkt->authlength = 0;
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ret = lwres_lwpacket_renderheader(b, pkt);
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if (ret != LWRES_R_SUCCESS) {
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lwres_buffer_invalidate(b);
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CTXFREE(buf, buflen);
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return (ret);
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}
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INSIST(SPACE_OK(b, payload_length));
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/*
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* Put the length and the data. We know this will fit because we
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* just checked for it.
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*/
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lwres_buffer_putuint16(b, req->datalength);
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lwres_buffer_putmem(b, req->data, req->datalength);
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INSIST(LWRES_BUFFER_AVAILABLECOUNT(b) == 0);
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return (LWRES_R_SUCCESS);
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}
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lwres_result_t
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lwres_nooprequest_parse(lwres_context_t *ctx, lwres_buffer_t *b,
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lwres_lwpacket_t *pkt, lwres_nooprequest_t **structp)
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{
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int ret;
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lwres_nooprequest_t *req;
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REQUIRE(ctx != NULL);
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REQUIRE(b != NULL);
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REQUIRE(pkt != NULL);
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REQUIRE(structp != NULL && *structp == NULL);
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if ((pkt->pktflags & LWRES_LWPACKETFLAG_RESPONSE) != 0)
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return (LWRES_R_FAILURE);
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req = CTXMALLOC(sizeof(lwres_nooprequest_t));
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if (req == NULL)
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return (LWRES_R_NOMEMORY);
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if (!SPACE_REMAINING(b, sizeof(lwres_uint16_t))) {
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ret = LWRES_R_UNEXPECTEDEND;
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goto out;
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}
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req->datalength = lwres_buffer_getuint16(b);
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if (!SPACE_REMAINING(b, req->datalength)) {
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ret = LWRES_R_UNEXPECTEDEND;
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goto out;
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}
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req->data = b->base + b->current;
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lwres_buffer_forward(b, req->datalength);
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if (LWRES_BUFFER_REMAINING(b) != 0) {
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ret = LWRES_R_TRAILINGDATA;
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goto out;
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}
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/* success! */
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*structp = req;
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return (LWRES_R_SUCCESS);
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/* Error return */
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out:
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CTXFREE(req, sizeof(lwres_nooprequest_t));
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return (ret);
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}
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lwres_result_t
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lwres_noopresponse_parse(lwres_context_t *ctx, lwres_buffer_t *b,
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lwres_lwpacket_t *pkt, lwres_noopresponse_t **structp)
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{
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int ret;
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lwres_noopresponse_t *req;
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REQUIRE(ctx != NULL);
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REQUIRE(b != NULL);
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REQUIRE(pkt != NULL);
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REQUIRE(structp != NULL && *structp == NULL);
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if ((pkt->pktflags & LWRES_LWPACKETFLAG_RESPONSE) == 0)
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return (LWRES_R_FAILURE);
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req = CTXMALLOC(sizeof(lwres_noopresponse_t));
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if (req == NULL)
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return (LWRES_R_NOMEMORY);
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if (!SPACE_REMAINING(b, sizeof(lwres_uint16_t))) {
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ret = LWRES_R_UNEXPECTEDEND;
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goto out;
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}
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req->datalength = lwres_buffer_getuint16(b);
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if (!SPACE_REMAINING(b, req->datalength)) {
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ret = LWRES_R_UNEXPECTEDEND;
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goto out;
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}
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req->data = b->base + b->current;
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lwres_buffer_forward(b, req->datalength);
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if (LWRES_BUFFER_REMAINING(b) != 0) {
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ret = LWRES_R_TRAILINGDATA;
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goto out;
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}
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/* success! */
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*structp = req;
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return (LWRES_R_SUCCESS);
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/* Error return */
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out:
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CTXFREE(req, sizeof(lwres_noopresponse_t));
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return (ret);
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}
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void
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lwres_noopresponse_free(lwres_context_t *ctx, lwres_noopresponse_t **structp)
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{
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lwres_noopresponse_t *noop;
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REQUIRE(ctx != NULL);
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REQUIRE(structp != NULL && *structp != NULL);
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noop = *structp;
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*structp = NULL;
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CTXFREE(noop, sizeof(lwres_noopresponse_t));
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}
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void
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lwres_nooprequest_free(lwres_context_t *ctx, lwres_nooprequest_t **structp)
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{
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lwres_nooprequest_t *noop;
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REQUIRE(ctx != NULL);
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REQUIRE(structp != NULL && *structp != NULL);
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noop = *structp;
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*structp = NULL;
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CTXFREE(noop, sizeof(lwres_nooprequest_t));
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}
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