130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/*
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* Copyright (C) 2017 THL A29 Limited, a Tencent company.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <string.h>
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#include "ff_ipc.h"
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static int
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ipfw_ctl(int cmd, int level, int optname, void *optval, socklen_t *optlen)
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{
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struct ff_msg *msg, *retmsg = NULL;
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int len;
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switch (cmd) {
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case FF_IPFW_GET:
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if (optval == NULL || optlen == NULL) {
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return EINVAL;
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}
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break;
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case FF_IPFW_SET:
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break;
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default:
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return EINVAL;
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}
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msg = ff_ipc_msg_alloc();
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if (msg == NULL) {
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errno = ENOMEM;
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return -1;
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}
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len = sizeof(struct ff_ipfw_args) + *optlen + sizeof(socklen_t);
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if (len > msg->buf_len) {
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errno = EINVAL;
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ff_ipc_msg_free(msg);
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return -1;
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}
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msg->msg_type = FF_IPFW_CTL;
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msg->ipfw.cmd = cmd;
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msg->ipfw.level = level;
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msg->ipfw.optname = optname;
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msg->ipfw.optval = (void *)msg->buf_addr;
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msg->ipfw.optlen = (socklen_t *)(msg->buf_addr + (*optlen));
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memcpy(msg->ipfw.optval, optval, *optlen);
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memcpy(msg->ipfw.optlen, optlen, sizeof(socklen_t));
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int ret = ff_ipc_send(msg);
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if (ret < 0) {
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errno = EPIPE;
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ff_ipc_msg_free(msg);
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return -1;
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}
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do {
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if (retmsg != NULL) {
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ff_ipc_msg_free(retmsg);
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}
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ret = ff_ipc_recv(&retmsg, msg->msg_type);
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if (ret < 0) {
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errno = EPIPE;
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ff_ipc_msg_free(msg);
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return -1;
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}
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} while (msg != retmsg);
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if (retmsg->result != 0) {
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ret = -1;
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errno = retmsg->result;
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} else {
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ret = 0;
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if (cmd == FF_IPFW_GET) {
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memcpy(optval, retmsg->ipfw.optval, *(retmsg->ipfw.optlen));
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memcpy(optlen, retmsg->ipfw.optlen, sizeof(socklen_t));
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}
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}
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ff_ipc_msg_free(msg);
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return ret;
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}
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int
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ff_socket(int domain, int type, int protocol)
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{
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return 0;
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}
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int ff_getsockopt(int sockfd, int level, int optname,
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void *optval, socklen_t *optlen)
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{
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return ipfw_ctl(FF_IPFW_GET, level, optname, optval, optlen);
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}
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int ff_setsockopt(int sockfd, int level, int optname,
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const void *optval, socklen_t optlen)
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{
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return ipfw_ctl(FF_IPFW_SET, level, optname, (void *)optval, &optlen);
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}
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