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a8edc9f1e3
The ng_ksocket(4) functionality is very fragile as it interfaces with kernel socket code in unusual way. It definitely needs a test suite. Start one with a test that tests UDP over IPv4.
116 lines
3.5 KiB
C
116 lines
3.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2024 Gleb Smirnoff <glebius@FreeBSD.org>
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netgraph.h>
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#include <netgraph/ng_socket.h>
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#include <netgraph/ng_ksocket.h>
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#include <errno.h>
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#include <atf-c.h>
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static void
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hellocheck(int wr, int rd)
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{
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char sbuf[] = "Hello, peer!", rbuf[sizeof(sbuf)];
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ATF_REQUIRE(send(wr, sbuf, sizeof(sbuf), 0) == sizeof(sbuf));
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ATF_REQUIRE(recv(rd, rbuf, sizeof(rbuf), 0) == sizeof(sbuf));
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ATF_REQUIRE(strcmp(sbuf, rbuf) == 0);
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}
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#define OURHOOK "ks"
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ATF_TC_WITHOUT_HEAD(udp_connect);
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ATF_TC_BODY(udp_connect, tc)
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{
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struct sockaddr sa = {
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.sa_family = AF_INET,
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};
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socklen_t slen = sizeof(sa);
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int ds, cs, us;
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ATF_REQUIRE((us = socket(PF_INET, SOCK_DGRAM, 0)) > 0);
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ATF_REQUIRE(bind(us, &sa, sizeof(sa)) == 0);
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ATF_REQUIRE(getsockname(us, &sa, &slen) == 0);
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struct ngm_mkpeer mkp = {
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.type = NG_KSOCKET_NODE_TYPE,
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.ourhook = OURHOOK,
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.peerhook = "inet/dgram/udp",
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};
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ATF_REQUIRE(NgMkSockNode(NULL, &cs, &ds) == 0);
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ATF_REQUIRE(NgSendMsg(cs, ".", NGM_GENERIC_COOKIE, NGM_MKPEER, &mkp,
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sizeof(mkp)) >= 0);
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ATF_REQUIRE(NgSendMsg(cs, ".:" OURHOOK, NGM_KSOCKET_COOKIE,
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NGM_KSOCKET_CONNECT, &sa, sizeof(sa)) >= 0);
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hellocheck(ds, us);
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}
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ATF_TC_WITHOUT_HEAD(udp_bind);
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ATF_TC_BODY(udp_bind, tc)
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{
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struct sockaddr_in sin = {
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.sin_family = AF_INET,
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.sin_len = sizeof(sin),
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};
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struct ng_mesg *rep;
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int ds, cs, us;
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struct ngm_mkpeer mkp = {
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.type = NG_KSOCKET_NODE_TYPE,
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.ourhook = OURHOOK,
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.peerhook = "inet/dgram/udp",
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};
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ATF_REQUIRE(NgMkSockNode(NULL, &cs, &ds) == 0);
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ATF_REQUIRE(NgSendMsg(cs, ".", NGM_GENERIC_COOKIE, NGM_MKPEER, &mkp,
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sizeof(mkp)) >= 0);
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ATF_REQUIRE(NgSendMsg(cs, ".:" OURHOOK, NGM_KSOCKET_COOKIE,
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NGM_KSOCKET_BIND, &sin, sizeof(sin)) >= 0);
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ATF_REQUIRE(NgSendMsg(cs, ".:" OURHOOK, NGM_KSOCKET_COOKIE,
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NGM_KSOCKET_GETNAME, NULL, 0) >= 0);
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ATF_REQUIRE(NgAllocRecvMsg(cs, &rep, NULL) == sizeof(struct ng_mesg) +
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sizeof(struct sockaddr_in));
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ATF_REQUIRE((us = socket(PF_INET, SOCK_DGRAM, 0)) > 0);
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ATF_REQUIRE(connect(us, (struct sockaddr *)rep->data,
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sizeof(struct sockaddr_in)) == 0);
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hellocheck(us, ds);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, udp_connect);
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ATF_TP_ADD_TC(tp, udp_bind);
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return (atf_no_error());
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}
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