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/* Copyright (C) 2003 Stephane Thiell |
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* |
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* This file is part of libopas (from pxys) |
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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, USA. |
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* |
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*/ |
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#define RCSID "$Id: opas.c,v 1.1.1.2 2004/01/15 14:18:23 mbuna Exp $" |
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|
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#include "opas.h" |
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|
| 24 |
#ifdef HAVE_ALLOCA_H |
| 25 |
#include <alloca.h> |
| 26 |
#endif |
| 27 |
#include <assert.h> |
| 28 |
#include <stdio.h> |
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#include <stdlib.h> |
| 30 |
#include <string.h> |
| 31 |
|
| 32 |
/* Internal includes */ |
| 33 |
#include "opas_msg.h" |
| 34 |
|
| 35 |
#define OPAS_VERSION (((OPAS_MAJOR) << 24) + ((OPAS_MINOR) << 16)) |
| 36 |
|
| 37 |
#define MSG_USER_MAXSMALL (1024 - 12) |
| 38 |
|
| 39 |
#define OPAS_HEADER_MAKE(serv, ping, ipv6, umsg, repl, prox, cach, erro) \ |
| 40 |
(OPAS_VERSION + ((serv) << 15) + ((ping) << 14) + ((ipv6) << 13) \ |
| 41 |
+ ((umsg) << 12) + ((repl) << 11) + ((prox) << 10) \ |
| 42 |
+ ((cach) << 9) + ((erro) << 8)) |
| 43 |
|
| 44 |
#define OPAS_HEADER_SETSIZE(h, siz) do { \ |
| 45 |
h = (h & ~0xff) + (unsigned char)(siz); } while (0) |
| 46 |
|
| 47 |
/* After ntohl conversion: |
| 48 |
*/ |
| 49 |
#define OPAS_GET_VERSION(h) ((h) & 0xffff0000) |
| 50 |
#define OPAS_GET_MSGSIZE(h) (4 + ((h) & 0xff)) |
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#define OPAS_OK_VERSION(h) (((h) & 0xff000000) == ((OPAS_MAJOR) << 24) \ |
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&& (((h) & 0x00ff0000) >= ((OPAS_MINOR) << 16))) |
| 53 |
|
| 54 |
/* Conversion macros |
| 55 |
*/ |
| 56 |
#define OPAS_QUERY_NTOH(qp) do { \ |
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(qp)->head = ntohl((qp)->head); } while (0) |
| 58 |
|
| 59 |
#define OPAS_QUERY_HTON(qp) do { \ |
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(qp)->head = htonl((qp)->head); } while (0) |
| 61 |
|
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#define OPAS_REPLY_ERROR_NTOH(re) do { \ |
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(re)->head = ntohl((re)->head); \ |
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(re)->error = ntohl((re)->error); } while (0) |
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|
| 66 |
#define OPAS_REPLY_ERROR_HTON(re) do { \ |
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(re)->head = htonl((re)->head); \ |
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(re)->error = htonl((re)->error); } while (0) |
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|
| 70 |
#define OPAS_REPLY_PROXY_NTOH(rp) do { \ |
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(rp)->head = ntohl((rp)->head); \ |
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(rp)->timestamp = ntohl((rp)->timestamp); \ |
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(rp)->proxy_type = ntohs((rp)->proxy_type); \ |
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(rp)->proxy_port = ntohs((rp)->proxy_port); } while (0) |
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|
| 76 |
#define OPAS_REPLY_PROXY_HTON(rp) do { \ |
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(rp)->head = htonl((rp)->head); \ |
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(rp)->timestamp = htonl((rp)->timestamp); \ |
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(rp)->proxy_type = htons((rp)->proxy_type); \ |
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(rp)->proxy_port = htons((rp)->proxy_port); } while (0) |
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|
| 82 |
#define OPAS_MSG_USER_NTOH(mu) do { \ |
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(mu)->head = ntohl((mu)->head); \ |
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(mu)->data_length = ntohl((mu)->data_length); } while (0) |
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|
| 86 |
#define OPAS_MSG_USER_HTON(mu) do { \ |
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(mu)->head = htonl((mu)->head); \ |
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(mu)->data_length = htonl((mu)->data_length); } while (0) |
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|
| 90 |
struct opas_session_s |
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{ |
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struct opas_callbacks cbs; |
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void *context; |
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void *ptr; |
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int size; |
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int end; |
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int minisize; |
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char minibuf[OPAS_MSG_MINSIZE]; |
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}; |
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|
| 101 |
#ifndef OPAS_VERSION_STRING |
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#define OPAS_VERSION_STRING "<Unknown>" |
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#endif |
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|
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const char * |
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opas_get_version() |
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{ |
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return OPAS_VERSION_STRING; |
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} |
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|
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opas_session_t |
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opas_open_session(const struct opas_callbacks *callbacks, void *context) |
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{ |
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opas_session_t session = |
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(opas_session_t)malloc(sizeof(struct opas_session_s)); |
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|
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if (session) |
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{ |
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session->cbs = *callbacks; |
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session->context = context; |
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session->ptr = NULL; |
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session->size = 0; |
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session->end = 0; |
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session->minisize = 0; |
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session->minibuf[0] = '\0'; |
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} |
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|
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return session; |
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} |
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|
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void |
| 132 |
opas_close_session(opas_session_t session) |
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{ |
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if (session->ptr) |
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free(session->ptr); |
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free(session); |
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} |
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|
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void * |
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opas_get_context(opas_session_t session) |
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{ |
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return session->context; |
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} |
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|
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void |
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opas_set_context(opas_session_t session, void *context) |
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{ |
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session->context = context; |
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} |
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|
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static int |
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__opas_callout(opas_session_t session, uint32_t head, uint32_t msgsize, |
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void *data) |
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{ |
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if (!(head & OPAS_FLAG_IPV6)) |
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{ |
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if (head & OPAS_FLAG_REPL) |
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{ |
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if (head & OPAS_FLAG_ERRO) |
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{ |
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if (msgsize == sizeof(struct opas_msg_reply_error)) |
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{ |
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struct opas_msg_reply_error *re = (struct opas_msg_reply_error*)data; |
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OPAS_REPLY_ERROR_NTOH(re); |
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if (session->cbs.reply_error_fun) |
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(*session->cbs.reply_error_fun)(re, session->context); |
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return 0; |
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} |
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} |
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else if (head & OPAS_FLAG_PROX) |
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{ |
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if (msgsize >= sizeof(struct opas_msg_reply_proxy)) |
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{ |
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struct opas_msg_reply_proxy *rp = (struct opas_msg_reply_proxy*)data; |
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OPAS_REPLY_PROXY_NTOH(rp); |
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if (session->cbs.reply_proxy_fun) |
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(*session->cbs.reply_proxy_fun)(rp, session->context); |
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return 0; |
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} |
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} |
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else /* not an error nor a proxy... cool ! */ |
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{ |
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if (msgsize == sizeof(struct opas_msg_query)) |
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{ |
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OPAS_QUERY_NTOH((struct opas_msg_query *)data); |
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if (session->cbs.reply_noproxy_fun) |
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(*session->cbs.reply_noproxy_fun)((struct opas_msg_query *)data, |
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session->context); |
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return 0; |
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} |
| 191 |
} |
| 192 |
} |
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else /* OPAS_FLAG_REPL */ |
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{ |
| 195 |
if (msgsize == sizeof(struct opas_msg_query)) |
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{ |
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OPAS_QUERY_NTOH((struct opas_msg_query *)data); |
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if (session->cbs.query_fun) |
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(*session->cbs.query_fun)((struct opas_msg_query *)data, |
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session->context); |
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return 0; |
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} |
| 203 |
} |
| 204 |
} |
| 205 |
else |
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{ |
| 207 |
if (head & OPAS_FLAG_REPL) |
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{ |
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if (head & OPAS_FLAG_ERRO) |
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{ |
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if (msgsize == sizeof(struct opas_msg_reply6_error)) |
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{ |
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struct opas_msg_reply6_error *re |
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= (struct opas_msg_reply6_error*)data; |
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OPAS_REPLY_ERROR_NTOH(re); |
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if (session->cbs.reply6_error_fun) |
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(*session->cbs.reply6_error_fun)(re, session->context); |
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return 0; |
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} |
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} |
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else if (head & OPAS_FLAG_PROX) |
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{ |
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if (msgsize >= sizeof(struct opas_msg_reply6_proxy)) |
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{ |
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OPAS_REPLY_PROXY_NTOH((struct opas_msg_reply6_proxy *)data); |
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if (session->cbs.reply6_proxy_fun) |
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(*session->cbs.reply6_proxy_fun)( |
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(struct opas_msg_reply6_proxy *)data, |
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session->context); |
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return 0; |
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} |
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} |
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else /* OPAS_FLAG_ERRO, OPAS_FLAG_PROX */ |
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{ |
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if (msgsize == sizeof(struct opas_msg_query6)) |
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{ |
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OPAS_QUERY_NTOH((struct opas_msg_query6 *)data); |
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if (session->cbs.reply6_noproxy_fun) |
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(*session->cbs.reply6_noproxy_fun)((struct opas_msg_query6 *)data, |
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session->context); |
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return 0; |
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} |
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} |
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} |
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else /* OPAS_FLAG_REPL */ |
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{ |
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if (msgsize == sizeof(struct opas_msg_query6)) |
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{ |
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OPAS_QUERY_NTOH((struct opas_msg_query6 *)data); |
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if (session->cbs.query6_fun) |
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(*session->cbs.query6_fun)((struct opas_msg_query6 *)data, |
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session->context); |
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return 0; |
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} |
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} |
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} |
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return -1; |
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} |
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|
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static void |
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__opas_pong(opas_session_t session) |
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{ |
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uint32_t head = htonl(OPAS_HEADER_MAKE(0,1,0,0,1,0,0,0)); |
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(*session->cbs.send_fun)(&head, sizeof(head), session->context); |
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} |
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|
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#define FEED_ERROR do { fprintf(stderr, "%s:%d feed error\n", \ |
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__FILE__, __LINE__); \ |
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result = -1; goto feed_error; } while (0) |
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|
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#define VERIFY_HEADER(h) if (!OPAS_OK_VERSION(h)) FEED_ERROR |
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|
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int |
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opas_feed(opas_session_t session, void *data, uint32_t size) |
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{ |
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int result = 0; |
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uint32_t head, msgsize, umlen; |
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char *d = (char *)data; |
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char *dsave = NULL; |
| 280 |
|
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if (session->minisize > 0) |
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{ |
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if (session->minisize + size < OPAS_MSG_MINSIZE) |
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{ |
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memcpy(session->minibuf + session->minisize, data, size); |
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session->minisize += size; |
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return 0; |
| 288 |
} |
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else |
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{ |
| 291 |
d = dsave = malloc(session->minisize + size); |
| 292 |
if (!d) |
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return -1; |
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memcpy(d, session->minibuf, session->minisize); |
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memcpy((char *)d + session->minisize, data, size); |
| 296 |
size += session->minisize; |
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session->minisize = 0; |
| 298 |
} |
| 299 |
} |
| 300 |
|
| 301 |
while (size > 0) |
| 302 |
{ |
| 303 |
if (session->end == 0) |
| 304 |
{ |
| 305 |
if (size < OPAS_MSG_MINSIZE) |
| 306 |
{ |
| 307 |
if (size >= sizeof(uint32_t)) |
| 308 |
{ |
| 309 |
head = ntohl(*((uint32_t *)d)); |
| 310 |
VERIFY_HEADER(head); |
| 311 |
if (head & OPAS_FLAG_PING) |
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{ |
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if (!(head & OPAS_FLAG_REPL)) |
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__opas_pong(session); |
| 315 |
size -= sizeof(uint32_t); |
| 316 |
d += sizeof(uint32_t); |
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continue; |
| 318 |
} |
| 319 |
} |
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memcpy(session->minibuf, d, size); |
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session->minisize = size; |
| 322 |
size = 0; |
| 323 |
} |
| 324 |
else |
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{ |
| 326 |
head = ntohl(*((uint32_t *)d)); |
| 327 |
VERIFY_HEADER(head); |
| 328 |
if (head & OPAS_FLAG_PING) |
| 329 |
{ |
| 330 |
if (!(head & OPAS_FLAG_REPL)) |
| 331 |
__opas_pong(session); |
| 332 |
size -= sizeof(uint32_t); |
| 333 |
d += sizeof(uint32_t); |
| 334 |
continue; |
| 335 |
} |
| 336 |
msgsize = OPAS_GET_MSGSIZE(head); |
| 337 |
if (!(head & OPAS_FLAG_UMSG)) |
| 338 |
{ |
| 339 |
if (msgsize <= size) |
| 340 |
{ |
| 341 |
if (__opas_callout(session, head, msgsize, d) == -1) |
| 342 |
FEED_ERROR; |
| 343 |
size -= msgsize; |
| 344 |
d += msgsize; |
| 345 |
} |
| 346 |
else |
| 347 |
{ |
| 348 |
assert(msgsize <= OPAS_MSG_MAXSIZE); |
| 349 |
if (session->size < OPAS_MSG_MAXSIZE) |
| 350 |
{ |
| 351 |
if (session->ptr) |
| 352 |
free(session->ptr); |
| 353 |
session->ptr = malloc(OPAS_MSG_MAXSIZE); |
| 354 |
if (!session->ptr) |
| 355 |
return -1; |
| 356 |
session->size = OPAS_MSG_MAXSIZE; |
| 357 |
} |
| 358 |
memcpy(session->ptr, d, size); |
| 359 |
session->end = size; |
| 360 |
size = 0; |
| 361 |
} |
| 362 |
} |
| 363 |
else |
| 364 |
{ |
| 365 |
/* User msg ! */ |
| 366 |
if (msgsize != sizeof(struct opas_msg_user_header)) |
| 367 |
FEED_ERROR; |
| 368 |
|
| 369 |
umlen = ntohl(*((uint32_t *)((char *)d + 8))); |
| 370 |
if (umlen > OPAS_UMSG_MAXSIZE) |
| 371 |
FEED_ERROR; |
| 372 |
|
| 373 |
if (msgsize + umlen <= size) |
| 374 |
{ |
| 375 |
/* We are lucky */ |
| 376 |
OPAS_MSG_USER_NTOH((struct opas_msg_user_header *)d); |
| 377 |
if (session->cbs.msg_user_fun) |
| 378 |
(*session->cbs.msg_user_fun)((struct opas_msg_user_header *)d, |
| 379 |
(void *)((char *)d + 12), |
| 380 |
session->context); |
| 381 |
size -= msgsize + umlen; |
| 382 |
d += msgsize + umlen; |
| 383 |
} |
| 384 |
else |
| 385 |
{ |
| 386 |
if (session->size < msgsize + umlen) |
| 387 |
{ |
| 388 |
if (session->ptr) |
| 389 |
free(session->ptr); |
| 390 |
session->ptr = malloc(msgsize + umlen); |
| 391 |
if (!session->ptr) |
| 392 |
return -1; |
| 393 |
session->size = msgsize + umlen; |
| 394 |
} |
| 395 |
memcpy(session->ptr, d, size); |
| 396 |
session->end = size; |
| 397 |
size = 0; |
| 398 |
} |
| 399 |
} |
| 400 |
} |
| 401 |
} |
| 402 |
else /* if (session->end == 0) */ |
| 403 |
{ |
| 404 |
head = ntohl(*((uint32_t *)session->ptr)); |
| 405 |
VERIFY_HEADER(head); |
| 406 |
msgsize = OPAS_GET_MSGSIZE(head); |
| 407 |
umlen = ntohl(*((uint32_t *)((char *)session->ptr + 8))); |
| 408 |
|
| 409 |
if (!(head & OPAS_FLAG_UMSG)) |
| 410 |
{ |
| 411 |
if (msgsize - session->end <= size) |
| 412 |
{ |
| 413 |
/* full message */ |
| 414 |
memcpy((char *)session->ptr + session->end, d, |
| 415 |
msgsize - session->end); |
| 416 |
|
| 417 |
if (__opas_callout(session, head, msgsize, session->ptr) == -1) |
| 418 |
FEED_ERROR; |
| 419 |
size -= msgsize - session->end; |
| 420 |
d += msgsize - session->end; |
| 421 |
session->end = 0; /* flushed */ |
| 422 |
} |
| 423 |
else |
| 424 |
{ |
| 425 |
/* still partial */ |
| 426 |
memcpy((char *)session->ptr + session->end, d, size); |
| 427 |
session->end += size; |
| 428 |
size = 0; |
| 429 |
} |
| 430 |
} |
| 431 |
else |
| 432 |
{ |
| 433 |
/* User msg ! */ |
| 434 |
if (umlen - session->end <= size) |
| 435 |
{ |
| 436 |
memcpy((char *)session->ptr + session->end, d, umlen - session->end); |
| 437 |
|
| 438 |
OPAS_MSG_USER_NTOH((struct opas_msg_user_header *)session->ptr); |
| 439 |
if (session->cbs.msg_user_fun) |
| 440 |
(*session->cbs.msg_user_fun)( |
| 441 |
(struct opas_msg_user_header *)session->ptr, |
| 442 |
(void *)((char *)session->ptr + 12), |
| 443 |
session->context); |
| 444 |
size -= umlen - session->end; |
| 445 |
d += umlen - session->end; |
| 446 |
session->end = 0; /* flushed */ |
| 447 |
} |
| 448 |
else |
| 449 |
{ |
| 450 |
memcpy((char *)session->ptr + session->end, d, size); |
| 451 |
session->end += size; |
| 452 |
size = 0; |
| 453 |
} |
| 454 |
} |
| 455 |
} |
| 456 |
} /* while */ |
| 457 |
|
| 458 |
feed_error: |
| 459 |
if (dsave) |
| 460 |
free(dsave); |
| 461 |
return result; |
| 462 |
} |
| 463 |
|
| 464 |
void |
| 465 |
opas_ping(opas_session_t session) |
| 466 |
{ |
| 467 |
uint32_t head = htonl(OPAS_HEADER_MAKE(0,1,0,0,0,0,0,0)); |
| 468 |
(*session->cbs.send_fun)(&head, sizeof(head), session->context); |
| 469 |
} |
| 470 |
|
| 471 |
void |
| 472 |
opas_query(opas_session_t session, const struct in_addr *addr, |
| 473 |
uint32_t user_data) |
| 474 |
{ |
| 475 |
struct opas_msg_query msg; |
| 476 |
|
| 477 |
msg.head = OPAS_HEADER_MAKE(0,0,0,0,0,0,0,0); |
| 478 |
msg.user_data = user_data; |
| 479 |
msg.addr = *addr; |
| 480 |
OPAS_HEADER_SETSIZE(msg.head, 8); |
| 481 |
|
| 482 |
OPAS_QUERY_HTON(&msg); |
| 483 |
(*session->cbs.send_fun)(&msg, sizeof(msg), session->context); |
| 484 |
} |
| 485 |
|
| 486 |
void |
| 487 |
opas_query6(opas_session_t session, const struct in6_addr *addr, |
| 488 |
uint32_t user_data) |
| 489 |
{ |
| 490 |
struct opas_msg_query6 msg; |
| 491 |
|
| 492 |
msg.head = OPAS_HEADER_MAKE(0,0,1,0,0,0,0,0); |
| 493 |
msg.user_data = user_data; |
| 494 |
msg.addr = *addr; |
| 495 |
OPAS_HEADER_SETSIZE(msg.head, 20); |
| 496 |
|
| 497 |
OPAS_QUERY_HTON(&msg); |
| 498 |
(*session->cbs.send_fun)(&msg, sizeof(msg), session->context); |
| 499 |
} |
| 500 |
|
| 501 |
void |
| 502 |
opas_reply_noproxy(opas_session_t session, struct opas_msg_query *queryp, |
| 503 |
int from_cache) |
| 504 |
{ |
| 505 |
queryp->head |= OPAS_FLAG_REPL; /* Set reply bit */ |
| 506 |
if (from_cache) |
| 507 |
queryp->head |= OPAS_FLAG_CACH; |
| 508 |
OPAS_QUERY_HTON(queryp); |
| 509 |
(*session->cbs.send_fun)(queryp, sizeof(*queryp), session->context); |
| 510 |
} |
| 511 |
|
| 512 |
void |
| 513 |
opas_reply6_noproxy(opas_session_t session, struct opas_msg_query6 *queryp, |
| 514 |
int from_cache) |
| 515 |
{ |
| 516 |
queryp->head |= OPAS_FLAG_REPL; /* Reply bit */ |
| 517 |
if (from_cache) |
| 518 |
queryp->head |= OPAS_FLAG_CACH; |
| 519 |
OPAS_QUERY_HTON(queryp); |
| 520 |
(*session->cbs.send_fun)(queryp, sizeof(*queryp), session->context); |
| 521 |
} |
| 522 |
|
| 523 |
void |
| 524 |
opas_reply_proxy(opas_session_t session, struct opas_msg_query *queryp, |
| 525 |
int from_cache, time_t ts, uint16_t type, uint16_t port, |
| 526 |
const char *descr) |
| 527 |
{ |
| 528 |
struct opas_msg_reply_proxy *replyp; |
| 529 |
size_t len = sizeof(struct opas_msg_reply_proxy) + strlen(descr); |
| 530 |
|
| 531 |
#ifdef HAVE_ALLOCA |
| 532 |
replyp = (struct opas_msg_reply_proxy *)alloca(len); |
| 533 |
#else |
| 534 |
replyp = (struct opas_msg_reply_proxy *)malloc(len); |
| 535 |
#endif |
| 536 |
|
| 537 |
replyp->head = OPAS_HEADER_MAKE(0,0,0,0,1,1,from_cache,0); |
| 538 |
replyp->user_data = queryp->user_data; |
| 539 |
replyp->addr = queryp->addr; |
| 540 |
replyp->timestamp = ts; |
| 541 |
replyp->proxy_type = type; |
| 542 |
replyp->proxy_port = port; |
| 543 |
strcpy(replyp->proxy_descr, descr); |
| 544 |
OPAS_HEADER_SETSIZE(replyp->head, len - 4); |
| 545 |
OPAS_REPLY_PROXY_HTON(replyp); |
| 546 |
(*session->cbs.send_fun)(replyp, len, session->context); |
| 547 |
|
| 548 |
#ifndef HAVE_ALLOCA |
| 549 |
free(replyp); |
| 550 |
#endif |
| 551 |
} |
| 552 |
|
| 553 |
void |
| 554 |
opas_reply6_proxy(opas_session_t session, struct opas_msg_query6 *queryp, |
| 555 |
int from_cache, time_t ts, uint16_t type, uint16_t port, |
| 556 |
const char *descr) |
| 557 |
{ |
| 558 |
struct opas_msg_reply6_proxy *replyp; |
| 559 |
size_t len = sizeof(struct opas_msg_reply6_proxy) + strlen(descr); |
| 560 |
|
| 561 |
#ifdef HAVE_ALLOCA |
| 562 |
replyp = (struct opas_msg_reply6_proxy *)alloca(len); |
| 563 |
#else |
| 564 |
replyp = (struct opas_msg_reply6_proxy *)malloc(len); |
| 565 |
#endif |
| 566 |
|
| 567 |
replyp->head = OPAS_HEADER_MAKE(0,0,1,0,1,1,from_cache,0); |
| 568 |
replyp->user_data = queryp->user_data; |
| 569 |
replyp->addr = queryp->addr; |
| 570 |
replyp->timestamp = ts; |
| 571 |
replyp->proxy_type = type; |
| 572 |
replyp->proxy_port = port; |
| 573 |
strcpy(replyp->proxy_descr, descr); |
| 574 |
OPAS_HEADER_SETSIZE(replyp->head, len - 4); |
| 575 |
OPAS_REPLY_PROXY_HTON(replyp); |
| 576 |
(*session->cbs.send_fun)(replyp, len, session->context); |
| 577 |
|
| 578 |
#ifndef HAVE_ALLOCA |
| 579 |
free(replyp); |
| 580 |
#endif |
| 581 |
} |
| 582 |
|
| 583 |
void |
| 584 |
opas_reply_error(opas_session_t session, struct opas_msg_query *queryp, |
| 585 |
uint32_t error) |
| 586 |
{ |
| 587 |
struct opas_msg_reply_error reply; |
| 588 |
|
| 589 |
reply.head = queryp->head | OPAS_FLAG_REPL | OPAS_FLAG_ERRO; |
| 590 |
reply.user_data = queryp->user_data; |
| 591 |
reply.addr = queryp->addr; |
| 592 |
reply.error = error; |
| 593 |
OPAS_HEADER_SETSIZE(reply.head, 12); |
| 594 |
|
| 595 |
OPAS_REPLY_ERROR_HTON(&reply); |
| 596 |
(*session->cbs.send_fun)(&reply, sizeof(reply), session->context); |
| 597 |
} |
| 598 |
|
| 599 |
void |
| 600 |
opas_reply6_error(opas_session_t session, struct opas_msg_query6 *queryp, |
| 601 |
uint32_t error) |
| 602 |
{ |
| 603 |
struct opas_msg_reply6_error reply; |
| 604 |
|
| 605 |
reply.head = queryp->head | OPAS_FLAG_REPL | OPAS_FLAG_ERRO; |
| 606 |
reply.user_data = queryp->user_data; |
| 607 |
reply.addr = queryp->addr; |
| 608 |
reply.error = error; |
| 609 |
OPAS_HEADER_SETSIZE(reply.head, 24); |
| 610 |
|
| 611 |
OPAS_REPLY_ERROR_HTON(&reply); |
| 612 |
(*session->cbs.send_fun)(&reply, sizeof(reply), session->context); |
| 613 |
} |
| 614 |
|
| 615 |
void |
| 616 |
opas_send_msg_user(opas_session_t session, const void *msg_data, |
| 617 |
uint32_t msg_length, int reply, uint32_t user_data) |
| 618 |
{ |
| 619 |
struct opas_msg_user_header *ucheadp; |
| 620 |
|
| 621 |
#ifdef HAVE_ALLOCA |
| 622 |
if (msg_length <= MSG_USER_MAXSMALL) |
| 623 |
{ |
| 624 |
ucheadp = (struct opas_msg_user_header *)alloca(sizeof(*ucheadp) |
| 625 |
+ msg_length); |
| 626 |
} |
| 627 |
else |
| 628 |
{ |
| 629 |
#endif |
| 630 |
ucheadp = (struct opas_msg_user_header *)malloc(sizeof(*ucheadp) |
| 631 |
+ msg_length); |
| 632 |
#ifdef HAVE_ALLOCA |
| 633 |
} |
| 634 |
#endif |
| 635 |
|
| 636 |
ucheadp->head = OPAS_HEADER_MAKE(0,0,0,1,reply,0,0,0); |
| 637 |
ucheadp->user_data = user_data; |
| 638 |
ucheadp->data_length = msg_length; |
| 639 |
OPAS_HEADER_SETSIZE(ucheadp->head, 8); |
| 640 |
|
| 641 |
if (msg_length > 0) |
| 642 |
memcpy(ucheadp + 1, msg_data, msg_length); |
| 643 |
|
| 644 |
OPAS_MSG_USER_HTON(ucheadp); |
| 645 |
(*session->cbs.send_fun)(ucheadp, sizeof(*ucheadp) + msg_length, |
| 646 |
session->context); |
| 647 |
|
| 648 |
#ifdef HAVE_ALLOCA |
| 649 |
if (msg_length > MSG_USER_MAXSMALL) |
| 650 |
#endif |
| 651 |
free(ucheadp); |
| 652 |
} |
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