Subrata Modak wrote:
This is an incomplete patch, which adds only the source code for the test case. It does not add the sequence for running the tests in:http://ltp.cvs.sourceforge.net/viewvc/ltp/ltp/testcases/kernel/containers/sysvipc/runipcnstest.sh, Please resend this. Regards-- Subrata
Hi Subrata Sending the new patch along with the batch file to run the tests. Also made small modifications in the mesgq_nstest.c to fix a) the warnings on tst_exit(). b) to remove the global var. And to return correct error num in the batch file runipcnstest.sh. Regards Veerendra C
Signed-off-by: Veerendra C <[email protected]> Index: ltp-full-20081231/testcases/kernel/containers/sysvipc/mesgq_nstest.c =================================================================== --- /dev/null +++ ltp-full-20081231/testcases/kernel/containers/sysvipc/mesgq_nstest.c @@ -0,0 +1,162 @@ +/* ************************************************************************* +* Copyright (c) International Business Machines Corp., 2009 +* This program 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 of the License, or +* (at your option) any later version. +* +* This program 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 this program; if not, write to the Free Software +* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +* +* Author: Veerendra C <[email protected]> +* +* In Parent Process , create mesgq with key 154326L +* Now create container by passing 1 of the flag values.. +* Flag = clone, clone(CLONE_NEWIPC), or unshare(CLONE_NEWIPC) +* In cloned process, try to access the created mesgq +* Test PASS: If the mesgq is readable when flag is None. +* Test FAIL: If the mesgq is readable when flag is Unshare or Clone. +***************************************************************************/ + +#define _GNU_SOURCE 1 +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <sys/ipc.h> +#include <sys/msg.h> +#include <libclone.h> +#include <test.h> + +#define KEY_VAL 154326L +#define UNSHARESTR "unshare" +#define CLONESTR "clone" +#define NONESTR "none" + +char *TCID = "mesgq_nstest"; +int TST_TOTAL = 1; +int p1[2]; +int p2[2]; +struct msg_buf { + long int mtype; /* type of received/sent message */ + char mtext[80]; /* text of the message */ + } msg; + +void mesgq_read(id) +{ + int READMAX = 80; + int n; + /* read msg type 5 on the Q; msgtype, flags are last 2 params..*/ + + n = msgrcv(id, &msg, READMAX, 5, 0); + if (n == -1) + perror("msgrcv"), tst_exit(); + + tst_resm(TINFO, "Mesg read of %d bytes; Type %ld: Msg: %.*s\n", + n, msg.mtype, n, msg.mtext); +} + +int check_mesgq(void *vtest) +{ + char buf[3]; + int id; + + close(p1[1]); + close(p2[0]); + + read(p1[0], buf, 3); + id = msgget(KEY_VAL, 0); + if (id == -1) + write(p2[1], "notfnd", 7); + else { + write(p2[1], "exists", 7); + mesgq_read(id); + } + tst_exit(); + + /* NOT REACHED */ + return 0; +} + +int main(int argc, char *argv[]) +{ + int ret, use_clone = T_NONE, id, n; + char *tsttype = NONESTR; + char buf[7]; + + if (argc != 2) { + tst_resm(TFAIL, "Usage: %s <clone|unshare|none>\n", argv[0]); + tst_resm(TFAIL, " where clone, unshare, or fork specifies" + " unshare method."); + tst_exit(); + } + + /* Using PIPE's to sync between container and Parent */ + if (pipe(p1) == -1) { perror("pipe"); exit(EXIT_FAILURE); } + if (pipe(p2) == -1) { perror("pipe"); exit(EXIT_FAILURE); } + + tsttype = NONESTR; + + if (strcmp(argv[1], "clone") == 0) { + use_clone = T_CLONE; + tsttype = CLONESTR; + } else if (strcmp(argv[1], "unshare") == 0) { + use_clone = T_UNSHARE; + tsttype = UNSHARESTR; + } + + id = msgget(KEY_VAL, IPC_CREAT | IPC_EXCL | 0600); + if (id == -1) { + perror("msgget"); + /* Retry without attempting to create the MQ */ + id = msgget(KEY_VAL, 0); + if (id == -1) perror("msgget failure"), exit(1); + } + + msg.mtype = 5; + strcpy(msg.mtext, "Message of type 5!"); + n = msgsnd(id, &msg, strlen( msg.mtext), 0); + if (n == -1) + perror("msgsnd"), tst_exit(); + + tst_resm(TINFO, "mesgq namespaces test : %s\n", tsttype); + /* fire off the test */ + ret = do_clone_unshare_test(use_clone, CLONE_NEWIPC, check_mesgq, NULL); + if (ret < 0) { + tst_resm(TFAIL, "%s failed\n", tsttype); + tst_exit(); + } + + close(p1[0]); + close(p2[1]); + write(p1[1], "go", 3); + + read(p2[0], buf, 7); + if (strcmp(buf, "exists") == 0) { + if (use_clone == T_NONE) + tst_resm(TPASS, "Plain cloned process found mesgq " + "inside container\n"); + else + tst_resm(TFAIL, "%s: Container init process found mesgq\n", + tsttype); + } else { + if (use_clone == T_NONE) + tst_resm(TFAIL, "Plain cloned process didn't find mesgq\n"); + else + tst_resm(TPASS, "%s: Container didn't find mesgq", tsttype); + } + + /* Delete the mesgQ */ + id = msgget(KEY_VAL, 0); + msgctl(id, IPC_RMID, NULL); + + tst_exit(); + + /* NOT REACHED */ + return 0; +} Index: ltp-full-20081231/testcases/kernel/containers/sysvipc/runipcnstest.sh =================================================================== --- ltp-full-20081231.orig/testcases/kernel/containers/sysvipc/runipcnstest.sh +++ ltp-full-20081231/testcases/kernel/containers/sysvipc/runipcnstest.sh @@ -20,12 +20,23 @@ ################################################################################ exit_code=0 -echo "sysvipc tests" +ret=0 +echo "****************** sysvipc tests ******************" for type in none clone unshare; do - echo "**sysvipc $type" + echo "sysvipc: SharedMemory $type" shmnstest $type - if [ $? -ne 0 ]; then - exit_code=$? + ret=$? + if [ $ret -ne 0 ]; then + exit_code=$ret + fi +done +echo +for type in none clone unshare; do + echo "sysvipc: MesgQ $type" + mesgq_nstest $type + ret=$? + if [ $exit_code -ne 0 ]; then + exit_code=$ret fi done exit $exit_code
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