From 2bafcef318d4885c129168a4e4fe5e58a2c21330 Mon Sep 17 00:00:00 2001 From: hartkopp Date: Sat, 9 Jul 2011 18:00:41 +0000 Subject: [PATCH] Added new programm to test the CAN filters in af_can.c . As the formerly test bench consisting of - tst-filter-master.c - tst-filter-server.c - tst-filter-server.result is pretty hard to use, this new tst-filter tool is intended to replace these tools in the Linux test project LTP. Together with tst-rcv-own-msgs, tst-filter is a complete new test bench then. Signed-off-by: Oliver Hartkopp git-svn-id: svn://svn.berlios.de//socketcan/trunk@1263 030b6a49-0b11-0410-94ab-b0dab22257f2 --- test/Makefile | 1 + test/tst-filter.c | 244 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 245 insertions(+) create mode 100644 test/tst-filter.c diff --git a/test/Makefile b/test/Makefile index 46c0060..812e455 100644 --- a/test/Makefile +++ b/test/Makefile @@ -53,6 +53,7 @@ PROGRAMS = tst-raw \ tst-err \ tst-raw-sendto \ tst-packet \ + tst-filter \ tst-filter-master \ tst-filter-server \ tst-rcv-own-msgs \ diff --git a/test/tst-filter.c b/test/tst-filter.c new file mode 100644 index 0000000..21c2593 --- /dev/null +++ b/test/tst-filter.c @@ -0,0 +1,244 @@ +/* + * $Id$ + */ + +/* + * tst-filter.c + * + * Copyright (c) 2011 Volkswagen Group Electronic Research + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Volkswagen nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * Alternatively, provided that this notice is retained in full, this + * software may be distributed under the terms of the GNU General + * Public License ("GPL") version 2, in which case the provisions of the + * GPL apply INSTEAD OF those given above. + * + * The provided data structures and external interfaces from this code + * are not restricted to be used by modules with a GPL compatible license. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + * Send feedback to + * + */ + +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include +#include + +#define ID 0x123 +#define TC 18 /* # of testcases */ + +const int rx_res[TC] = {4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1}; +const int rxbits_res[TC] = {4369, 4369, 4369, 4369, 17, 4352, 17, 4352, 257, 257, 4112, 4112, 1, 256, 16, 4096, 1, 256}; + +canid_t calc_id(int testcase) +{ + canid_t id = ID; + + if (testcase & 1) + id |= CAN_EFF_FLAG; + if (testcase & 2) + id |= CAN_RTR_FLAG; + + return id; +} + +canid_t calc_mask(int testcase) +{ + canid_t mask = CAN_SFF_MASK; + + if (testcase > 15) + return (CAN_EFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG); + + if (testcase & 4) + mask |= CAN_EFF_FLAG; + if (testcase & 8) + mask |= CAN_RTR_FLAG; + + return mask; +} + +int main(int argc, char **argv) +{ + fd_set rdfs; + struct timeval tv; + int s; + struct sockaddr_can addr; + struct can_filter rfilter; + struct can_frame frame; + int testcase; + int have_rx; + int rx; + int rxbits, rxbitval; + int ret; + int recv_own_msgs = 1; + struct ifreq ifr; + + /* check command line options */ + if (argc != 2) { + fprintf(stderr, "Usage: %s \n", argv[0]); + return 1; + } + + if ((s = socket(PF_CAN, SOCK_RAW, CAN_RAW)) < 0) { + perror("socket"); + return 1; + } + + strcpy(ifr.ifr_name, argv[1]); + if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) { + perror("SIOCGIFINDEX"); + return 1; + } + addr.can_family = AF_CAN; + addr.can_ifindex = ifr.ifr_ifindex; + + setsockopt(s, SOL_CAN_RAW, CAN_RAW_RECV_OWN_MSGS, + &recv_own_msgs, sizeof(recv_own_msgs)); + + if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) { + perror("bind"); + return 1; + } + + printf("---\n"); + + for (testcase = 0; testcase < TC; testcase++) { + + rfilter.can_id = calc_id(testcase); + rfilter.can_mask = calc_mask(testcase); + setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, + &rfilter, sizeof(rfilter)); + + printf("testcase %2d filters : can_id = 0x%08X can_mask = 0x%08X\n", + testcase, rfilter.can_id, rfilter.can_mask); + + printf("testcase %2d sending patterns ... ", testcase); + + frame.can_dlc = 1; + frame.data[0] = testcase; + + frame.can_id = ID; + if (write(s, &frame, sizeof(frame)) < 0) { + perror("write"); + exit(1); + } + frame.can_id = (ID | CAN_RTR_FLAG); + if (write(s, &frame, sizeof(frame)) < 0) { + perror("write"); + exit(1); + } + frame.can_id = (ID | CAN_EFF_FLAG); + if (write(s, &frame, sizeof(frame)) < 0) { + perror("write"); + exit(1); + } + frame.can_id = (ID | CAN_EFF_FLAG | CAN_RTR_FLAG); + if (write(s, &frame, sizeof(frame)) < 0) { + perror("write"); + exit(1); + } + + printf("ok\n"); + + have_rx = 1; + rx = 0; + rxbits = 0; + + while (have_rx) { + + have_rx = 0; + FD_ZERO(&rdfs); + FD_SET(s, &rdfs); + tv.tv_sec = 0; + tv.tv_usec = 50000; /* 50ms timeout */ + + ret = select(s+1, &rdfs, NULL, NULL, &tv); + if (ret < 0) { + perror("select"); + exit(1); + } + + if (FD_ISSET(s, &rdfs)) { + have_rx = 1; + ret = read(s, &frame, sizeof(struct can_frame)); + if (ret < 0) { + perror("read"); + exit(1); + } + if ((frame.can_id & CAN_SFF_MASK) != ID) { + fprintf(stderr, "received wrong can_id!\n"); + exit(1); + } + if (frame.data[0] != testcase) { + fprintf(stderr, "received wrong testcase!\n"); + exit(1); + } + + /* test & calc rxbits */ + rxbitval = 1 << ((frame.can_id & (CAN_EFF_FLAG|CAN_RTR_FLAG|CAN_ERR_FLAG)) >> 28); + + /* only receive a rxbitval once */ + if ((rxbits & rxbitval) == rxbitval) { + fprintf(stderr, "received rxbitval %d twice!\n", rxbitval); + exit(1); + } + rxbits |= rxbitval; + rx++; + + printf("testcase %2d rx : can_id = 0x%08X rx = %d rxbits = %d\n", + testcase, frame.can_id, rx, rxbits); + } + } + /* rx timed out -> check the received results */ + if (rx_res[testcase] != rx) { + fprintf(stderr, "wrong rx value in testcase %d : %d (expected %d)\n", + testcase, rx, rx_res[testcase]); + exit(1); + } + if (rxbits_res[testcase] != rxbits) { + fprintf(stderr, "wrong rxbits value in testcase %d : %d (expected %d)\n", + testcase, rxbits, rxbits_res[testcase]); + exit(1); + } + printf("testcase %2d ok\n---\n", testcase); + } + + close(s); + + return 0; +} -- 2.39.2