Squashed 'third_party/lksctp-tools/' content from commit 200eca7f1
Change-Id: I8f7575513f114b205178cac5c6b3706f3d725cb5
git-subtree-dir: third_party/lksctp-tools
git-subtree-split: 200eca7f1419b1ae53958b51e8551f7e7f6cd467
diff --git a/src/func_tests/test_recvmsg.c b/src/func_tests/test_recvmsg.c
new file mode 100644
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--- /dev/null
+++ b/src/func_tests/test_recvmsg.c
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+/* SCTP kernel Implementation
+ * (C) Copyright IBM Corp. 2002, 2003
+ * Copyright (c) 1999-2001 Motorola, Inc.
+ *
+ * This file is part of the SCTP kernel Implementation
+ *
+ * The SCTP implementation is free software;
+ * you can redistribute it and/or modify it under the terms of
+ * the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * The SCTP implementation is distributed in the hope that it
+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
+ * ************************
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU CC; see the file COPYING. If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Please send any bug reports or fixes you make to the
+ * email address(es):
+ * lksctp developers <lksctp-developers@lists.sourceforge.net>
+ *
+ * Or submit a bug report through the following website:
+ * http://www.sf.net/projects/lksctp
+ *
+ * Written or modified by:
+ * Sridhar Samudrala <sri@us.ibm.com>
+ *
+ * Any bugs reported to us we will try to fix... any fixes shared will
+ * be incorporated into the next SCTP release.
+ */
+
+/* This is a kernel test to verify
+ * 1. MSG_EOR flag is set correctly when a single message is read using multiple
+ * recvmsg() calls.
+ * 2. MSG_PEEK support.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <netinet/in.h>
+#include <errno.h>
+#include <netinet/sctp.h>
+#include <sctputil.h>
+
+char *TCID = __FILE__;
+int TST_TOTAL = 2;
+int TST_CNT = 0;
+
+int
+main(int argc, char *argv[])
+{
+ int svr_sk, clt_sk;
+ struct sockaddr_in svr_loop, clt_loop;
+ struct iovec iov, out_iov;
+ struct msghdr inmessage, outmessage;
+ char incmsg[CMSG_SPACE(sizeof(sctp_cmsg_data_t))];
+ int error, msglen, i;
+ char *big_buffer;
+ void *msg_buf;
+
+ /* Rather than fflush() throughout the code, set stdout to
+ * be unbuffered.
+ */
+ setvbuf(stdout, NULL, _IONBF, 0);
+
+ /* Initialize the server and client addresses. */
+ svr_loop.sin_family = AF_INET;
+ svr_loop.sin_addr.s_addr = SCTP_IP_LOOPBACK;
+ svr_loop.sin_port = htons(SCTP_TESTPORT_1);
+ clt_loop.sin_family = AF_INET;
+ clt_loop.sin_addr.s_addr = SCTP_IP_LOOPBACK;
+ clt_loop.sin_port = htons(SCTP_TESTPORT_2);
+
+ /* Create and bind the server socket. */
+ svr_sk = test_socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
+ test_bind(svr_sk, (struct sockaddr *)&svr_loop, sizeof(svr_loop));
+
+ /* Mark server socket as being able to accept new associations. */
+ test_listen(svr_sk, 1);
+
+ /* Create and bind the client sockets. */
+ clt_sk = test_socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
+ test_bind(clt_sk, (struct sockaddr *)&clt_loop, sizeof(clt_loop));
+
+ /* Enable ASSOC_CHANGE and SNDRCVINFO notifications. */
+ test_enable_assoc_change(svr_sk);
+ test_enable_assoc_change(clt_sk);
+
+ /* Send a message. This will create the association. */
+ memset(&outmessage, 0, sizeof(outmessage));
+ outmessage.msg_name = &svr_loop;
+ outmessage.msg_namelen = sizeof(svr_loop);
+ outmessage.msg_iov = &out_iov;
+ outmessage.msg_iovlen = 1;
+ msg_buf = test_build_msg(30000);
+ outmessage.msg_iov->iov_base = msg_buf;
+ outmessage.msg_iov->iov_len = 30000;
+ test_sendmsg(clt_sk, &outmessage, 0, 30000);
+
+ /* Initialize inmessage for all receives. */
+ big_buffer = test_malloc(REALLY_BIG);
+ memset(&inmessage, 0, sizeof(inmessage));
+ iov.iov_base = big_buffer;
+ iov.iov_len = 2000;
+ inmessage.msg_iov = &iov;
+ inmessage.msg_iovlen = 1;
+ inmessage.msg_control = incmsg;
+
+ /* Receive COMM_UP on clt_sk. */
+ inmessage.msg_controllen = sizeof(incmsg);
+ error = test_recvmsg(clt_sk, &inmessage, 0);
+ test_check_msg_notification(&inmessage, error,
+ sizeof(struct sctp_assoc_change),
+ SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
+
+ /* Receive COMM_UP on svr_sk. */
+ inmessage.msg_controllen = sizeof(incmsg);
+ error = test_recvmsg(svr_sk, &inmessage, MSG_WAITALL);
+ test_check_msg_notification(&inmessage, error,
+ sizeof(struct sctp_assoc_change),
+ SCTP_ASSOC_CHANGE, SCTP_COMM_UP);
+
+ /* Read the 30000 byte message using multiple recvmsg() calls in a
+ * loop with 2000 bytes per read.
+ */
+ for (i = 0, msglen = 30000; i < 15; i++, msglen-=2000) {
+ iov.iov_len = REALLY_BIG;
+ inmessage.msg_controllen = sizeof(incmsg);
+ error = test_recvmsg(svr_sk, &inmessage, MSG_PEEK);
+ test_check_msg_data(&inmessage, error, msglen,
+ MSG_EOR, 0, 0);
+
+ iov.iov_len = 2000;
+ inmessage.msg_controllen = sizeof(incmsg);
+ error = test_recvmsg(svr_sk, &inmessage, MSG_WAITALL);
+ test_check_msg_data(&inmessage, error, 2000,
+ ((i==14)?MSG_EOR:0), 0, 0);
+ }
+
+ tst_resm(TPASS, "recvmsg with MSG_PEEK flag");
+ tst_resm(TPASS, "MSG_EOR in msg_flags set correctly");
+
+ close(svr_sk);
+ close(clt_sk);
+
+ /* Indicate successful completion. */
+ return 0;
+}