| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * 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 |
| */ |
| |
| /* |
| * Test Name: recvmsg01 |
| * |
| * Test Description: |
| * Verify that recvmsg() returns the proper errno for various failure cases |
| * |
| * Usage: <for command-line> |
| * recvmsg01 [-c n] [-e] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * HISTORY |
| * 07/2001 Ported by Wayne Boyer |
| * |
| * RESTRICTIONS: |
| * None. |
| * |
| */ |
| |
| /* The #ifndef code below is for 2.5 64-bit kernels, where */ |
| /* the MSG_CMSG_COMPAT flag must be 0 in order for the syscall */ |
| /* and this test to function correctly. */ |
| #ifndef MSG_CMSG_COMPAT |
| |
| #if defined (__powerpc64__) || defined (__mips64) || defined (__x86_64__) || defined (__sparc64__) |
| #define MSG_CMSG_COMPAT 0x80000000 |
| #else |
| #define MSG_CMSG_COMPAT 0 |
| #endif |
| |
| #endif |
| /***************************************************/ |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <sys/signal.h> |
| #include <sys/uio.h> |
| #include <sys/un.h> |
| #include <sys/file.h> |
| |
| #include <netinet/in.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| char *TCID = "recvmsg01"; /* Test program identifier. */ |
| int testno; |
| |
| char buf[1024], cbuf[1024]; |
| int s; /* socket descriptor */ |
| int passed_fd = -1; /* rights-passing test descriptor */ |
| struct sockaddr_in sin1, from; |
| struct sockaddr_un sun1; |
| struct msghdr msgdat; |
| struct cmsghdr *control = 0; |
| int controllen = 0; |
| struct iovec iov[1]; |
| static int sfd; /* shared between do_child and start_server */ |
| static int ufd; /* shared between do_child and start_server */ |
| |
| void setup(void); |
| void setup0(void); |
| void setup1(void); |
| void setup2(void); |
| void setup3(void); |
| void setup4(void); |
| void cleanup(void); |
| void cleanup0(void); |
| void cleanup1(void); |
| void cleanup2(void); |
| void do_child(void); |
| |
| void sender(int); |
| pid_t start_server(struct sockaddr_in *, struct sockaddr_un *); |
| |
| struct test_case_t { /* test case structure */ |
| int domain; /* PF_INET, PF_UNIX, ... */ |
| int type; /* SOCK_STREAM, SOCK_DGRAM ... */ |
| int proto; /* protocol number (usually 0 = default) */ |
| struct iovec *iov; |
| int iovcnt; |
| void *buf; /* recv data buffer */ |
| int buflen; /* recv buffer length */ |
| struct msghdr *msg; |
| unsigned flags; |
| struct sockaddr *from; /* from address */ |
| int fromlen; /* from address value/result buffer length */ |
| int retval; /* syscall return value */ |
| int experrno; /* expected errno */ |
| void (*setup) (void); |
| void (*cleanup) (void); |
| char *desc; |
| } tdat[] = { |
| /* 1 */ |
| { |
| PF_INET, SOCK_STREAM, 0, iov, 1, buf, sizeof(buf), &msgdat, 0, |
| (struct sockaddr *)&from, sizeof(from), |
| -1, EBADF, setup0, cleanup0, "bad file descriptor"} |
| , |
| /* 2 */ |
| { |
| 0, 0, 0, iov, 1, (void *)buf, sizeof(buf), &msgdat, 0, |
| (struct sockaddr *)&from, sizeof(from), |
| -1, ENOTSOCK, setup0, cleanup0, "invalid socket"} |
| , |
| /* 3 */ |
| { |
| PF_INET, SOCK_STREAM, 0, iov, 1, (void *)buf, sizeof(buf), |
| &msgdat, 0, (struct sockaddr *)-1, sizeof(from), 0, |
| ENOTSOCK, setup1, cleanup1, "invalid socket buffer"} |
| , |
| /* 4 */ |
| { |
| PF_INET, SOCK_STREAM, 0, iov, 1, (void *)buf, sizeof(buf), |
| &msgdat, -1, (struct sockaddr *)&from, -1, -1, |
| EINVAL, setup1, cleanup1, "invalid socket length"}, |
| /* 5 */ |
| { |
| PF_INET, SOCK_STREAM, 0, iov, 1, (void *)-1, sizeof(buf), |
| &msgdat, 0, (struct sockaddr *)&from, sizeof(from), |
| -1, EFAULT, setup1, cleanup1, "invalid recv buffer"} |
| , |
| /* 6 */ |
| { |
| PF_INET, SOCK_STREAM, 0, 0, 1, (void *)buf, sizeof(buf), |
| &msgdat, 0, (struct sockaddr *)&from, sizeof(from), |
| -1, EFAULT, setup1, cleanup1, "invalid iovec buffer"} |
| , |
| /* 7 */ |
| { |
| PF_INET, SOCK_STREAM, 0, iov, -1, (void *)buf, sizeof(buf), |
| &msgdat, 0, (struct sockaddr *)&from, sizeof(from), |
| -1, EMSGSIZE, setup1, cleanup1, "invalid iovec count"} |
| , |
| /* 8 */ |
| { |
| PF_UNIX, SOCK_STREAM, 0, iov, 1, (void *)buf, sizeof(buf), |
| &msgdat, 0, (struct sockaddr *)&from, sizeof(from), |
| 0, 0, setup2, cleanup2, "rights reception"} |
| , |
| /* 9 */ |
| { |
| PF_INET, SOCK_STREAM, 0, iov, 1, (void *)buf, sizeof(buf), |
| &msgdat, ~MSG_CMSG_COMPAT, (struct sockaddr *)&from, |
| sizeof(from), -1, EINVAL, setup1, cleanup1, |
| "invalid flags set"} |
| , |
| /* 10 */ |
| { |
| PF_UNIX, SOCK_STREAM, 0, iov, 1, (void *)buf, sizeof(buf), |
| &msgdat, 0, (struct sockaddr *)&from, sizeof(from), |
| 0, EINVAL, setup3, cleanup2, "invalid cmsg length"} |
| , |
| /* 11 */ |
| { |
| PF_UNIX, SOCK_STREAM, 0, iov, 1, (void *)buf, sizeof(buf), |
| &msgdat, 0, (struct sockaddr *)&from, sizeof(from), |
| 0, 0, setup4, cleanup2, "large cmesg length"} |
| ,}; |
| |
| int TST_TOTAL = sizeof(tdat) / sizeof(tdat[0]); /* Total number of test cases. */ |
| |
| int exp_enos[] = { EBADF, ENOTSOCK, EFAULT, EINVAL, 0 }; |
| |
| extern int Tst_count; |
| |
| #ifdef UCLINUX |
| static char *argv0; |
| #endif |
| |
| int main(int argc, char *argv[]) |
| { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| |
| /* Parse standard options given to run the test. */ |
| msg = parse_opts(argc, argv, NULL, NULL); |
| if (msg != NULL) { |
| tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg); |
| } |
| #ifdef UCLINUX |
| argv0 = argv[0]; |
| maybe_run_child(&do_child, "dd", &sfd, &ufd); |
| #endif |
| |
| setup(); |
| |
| TEST_EXP_ENOS(exp_enos); |
| |
| /* Check looping state if -i option given */ |
| for (lc = 0; TEST_LOOPING(lc); ++lc) { |
| Tst_count = 0; |
| for (testno = 0; testno < TST_TOTAL; ++testno) { |
| tdat[testno].setup(); |
| |
| /* setup common to all tests */ |
| |
| iov[0].iov_base = tdat[testno].buf; |
| iov[0].iov_len = tdat[testno].buflen; |
| msgdat.msg_name = tdat[testno].from; |
| msgdat.msg_namelen = tdat[testno].fromlen; |
| msgdat.msg_iov = tdat[testno].iov; |
| msgdat.msg_iovlen = tdat[testno].iovcnt; |
| msgdat.msg_control = control; |
| msgdat.msg_controllen = controllen; |
| msgdat.msg_flags = 0; |
| |
| TEST(recvmsg(s, tdat[testno].msg, tdat[testno].flags)); |
| if (TEST_RETURN >= 0) |
| TEST_RETURN = 0; /* all nonzero equal here */ |
| if (TEST_RETURN != tdat[testno].retval || |
| (TEST_RETURN < 0 && |
| TEST_ERRNO != tdat[testno].experrno)) { |
| tst_resm(TFAIL, "%s ; returned" |
| " %ld (expected %d), errno %d (expected" |
| " %d)", tdat[testno].desc, |
| TEST_RETURN, tdat[testno].retval, |
| TEST_ERRNO, tdat[testno].experrno); |
| } else { |
| TEST_ERROR_LOG(TEST_ERRNO); |
| tst_resm(TPASS, "%s successful", |
| tdat[testno].desc); |
| } |
| tdat[testno].cleanup(); |
| } |
| } |
| cleanup(); |
| /*NOT REACHED */ |
| return 0; |
| } /* End main */ |
| |
| pid_t pid; |
| char tmpsunpath[1024]; |
| |
| void setup(void) |
| { |
| int tfd; |
| TEST_PAUSE; /* if -P option specified */ |
| |
| /* initialize sockaddr's */ |
| sin1.sin_family = AF_INET; |
| sin1.sin_port = htons((getpid() % 32768) + 11000); |
| sin1.sin_addr.s_addr = INADDR_ANY; |
| tst_tmpdir(); |
| (void)strcpy(tmpsunpath, "udsockXXXXXX"); |
| tfd = mkstemp(tmpsunpath); |
| close(tfd); |
| unlink(tmpsunpath); |
| sun1.sun_family = AF_UNIX; |
| (void)strcpy(sun1.sun_path, tmpsunpath); |
| |
| signal(SIGPIPE, SIG_IGN); |
| |
| pid = start_server(&sin1, &sun1); |
| } |
| |
| void cleanup(void) |
| { |
| (void)kill(pid, SIGKILL); /* kill server */ |
| if (tmpsunpath[0] != '\0') |
| (void)unlink(tmpsunpath); |
| TEST_CLEANUP; |
| tst_rmdir(); |
| tst_exit(); |
| } |
| |
| void setup0(void) |
| { |
| if (tdat[testno].experrno == EBADF) |
| s = 400; /* anything not an open file */ |
| else if ((s = open("/dev/null", O_WRONLY)) == -1) |
| tst_brkm(TBROK|TERRNO, cleanup, "open(/dev/null) failed"); |
| } |
| |
| void cleanup0(void) |
| { |
| s = -1; |
| } |
| |
| void setup1(void) |
| { |
| fd_set rdfds; |
| struct timeval timeout; |
| int n; |
| |
| s = socket(tdat[testno].domain, tdat[testno].type, tdat[testno].proto); |
| if (s < 0) |
| tst_brkm(TBROK|TERRNO, cleanup, "socket setup failed"); |
| if (tdat[testno].type == SOCK_STREAM) { |
| if (tdat[testno].domain == PF_INET) { |
| if (connect(s, (struct sockaddr *)&sin1, sizeof(sin1)) < |
| 0) |
| tst_brkm(TBROK|TERRNO, cleanup, "connect failed"); |
| /* Wait for something to be readable, else we won't detect EFAULT on recv */ |
| FD_ZERO(&rdfds); |
| FD_SET(s, &rdfds); |
| timeout.tv_sec = 2; |
| timeout.tv_usec = 0; |
| n = select(s + 1, &rdfds, 0, 0, &timeout); |
| if (n != 1 || !FD_ISSET(s, &rdfds)) |
| tst_brkm(TBROK, cleanup, |
| "client setup1 failed - no message ready in 2 sec"); |
| } else if (tdat[testno].domain == PF_UNIX) { |
| if (connect(s, (struct sockaddr *)&sun1, sizeof(sun1)) < |
| 0) |
| tst_brkm(TBROK|TERRNO, cleanup, "UD connect failed"); |
| } |
| } |
| } |
| |
| void setup2(void) |
| { |
| setup1(); |
| if (write(s, "R", 1) < 0) |
| tst_brkm(TBROK|TERRNO, cleanup, "test setup failed: write:"); |
| control = (struct cmsghdr *)cbuf; |
| controllen = control->cmsg_len = sizeof(cbuf); |
| } |
| |
| void setup3(void) |
| { |
| setup2(); |
| controllen = sizeof(struct cmsghdr) - 1; |
| } |
| |
| void setup4(void) |
| { |
| setup2(); |
| controllen = 128 * 1024; |
| } |
| |
| void cleanup1(void) |
| { |
| (void)close(s); |
| close(ufd); |
| close(sfd); |
| s = -1; |
| } |
| |
| void cleanup2(void) |
| { |
| close(ufd); |
| close(sfd); |
| (void)close(s); |
| s = -1; |
| |
| if (passed_fd >= 0) |
| (void)close(passed_fd); |
| passed_fd = -1; |
| control = 0; |
| controllen = 0; |
| } |
| |
| pid_t start_server(struct sockaddr_in *ssin, struct sockaddr_un *ssun) |
| { |
| pid_t pid; |
| |
| /* set up inet socket */ |
| sfd = socket(PF_INET, SOCK_STREAM, 0); |
| if (sfd < 0) { |
| tst_brkm(TBROK|TERRNO, cleanup, "server socket failed"); |
| return -1; |
| } |
| if (bind(sfd, (struct sockaddr *)ssin, sizeof(*ssin)) < 0) { |
| tst_brkm(TBROK|TERRNO, cleanup, "server bind failed"); |
| return -1; |
| } |
| if (listen(sfd, 10) < 0) { |
| tst_brkm(TBROK|TERRNO, cleanup, "server listen failed"); |
| return -1; |
| } |
| /* set up UNIX-domain socket */ |
| ufd = socket(PF_UNIX, SOCK_STREAM, 0); |
| if (ufd < 0) { |
| tst_brkm(TBROK|TERRNO, cleanup, "server UD socket failed"); |
| return -1; |
| } |
| if (bind(ufd, (struct sockaddr *)ssun, sizeof(*ssun))) { |
| tst_brkm(TBROK|TERRNO, cleanup, "server UD bind failed"); |
| return -1; |
| } |
| if (listen(ufd, 10) < 0) { |
| tst_brkm(TBROK|TERRNO, cleanup, "server UD listen failed"); |
| return -1; |
| } |
| |
| switch ((pid = FORK_OR_VFORK())) { |
| case 0: /* child */ |
| #ifdef UCLINUX |
| if (self_exec(argv0, "dd", sfd, ufd) < 0) |
| tst_brkm(TBROK|TERRNO, cleanup, "server self_exec failed"); |
| #else |
| do_child(); |
| #endif |
| break; |
| case -1: |
| tst_brkm(TBROK|TERRNO, cleanup, "server fork failed"); |
| /* fall through */ |
| default: /* parent */ |
| (void)close(sfd); |
| (void)close(ufd); |
| return pid; |
| } |
| /*NOTREACHED*/ exit(1); |
| } |
| |
| void do_child() |
| { |
| struct sockaddr_in fsin; |
| struct sockaddr_un fsun; |
| fd_set afds, rfds; |
| int nfds, cc, fd; |
| |
| FD_ZERO(&afds); |
| FD_SET(sfd, &afds); |
| FD_SET(ufd, &afds); |
| |
| nfds = getdtablesize(); |
| |
| /* accept connections until killed */ |
| while (1) { |
| socklen_t fromlen; |
| |
| memcpy(&rfds, &afds, sizeof(rfds)); |
| |
| if (select(nfds, &rfds, (fd_set *) 0, (fd_set *) 0, |
| (struct timeval *)0) < 0) { |
| if (errno != EINTR) { |
| perror("server select"); |
| exit(1); |
| } |
| continue; |
| } |
| if (FD_ISSET(sfd, &rfds)) { |
| int newfd; |
| |
| fromlen = sizeof(fsin); |
| newfd = accept(sfd, (struct sockaddr *)&fsin, &fromlen); |
| if (newfd >= 0) { |
| FD_SET(newfd, &afds); |
| /* send something back */ |
| (void)write(newfd, "hoser\n", 6); |
| } |
| } |
| if (FD_ISSET(ufd, &rfds)) { |
| int newfd; |
| |
| fromlen = sizeof(fsun); |
| newfd = accept(ufd, (struct sockaddr *)&fsun, &fromlen); |
| if (newfd >= 0) |
| FD_SET(newfd, &afds); |
| } |
| for (fd = 0; fd < nfds; ++fd) |
| if (fd != sfd && fd != ufd && FD_ISSET(fd, &rfds)) { |
| char rbuf[1024]; |
| |
| cc = read(fd, rbuf, sizeof(rbuf)); |
| if (cc && rbuf[0] == 'R') |
| sender(fd); |
| if (cc == 0 || (cc < 0 && errno != EINTR)) { |
| (void)close(fd); |
| FD_CLR(fd, &afds); |
| } |
| } |
| } |
| } |
| |
| #define TM "from recvmsg01 server" |
| |
| /* special for rights-passing test */ |
| void sender(int fd) |
| { |
| struct msghdr mh; |
| struct cmsghdr *control; |
| char tmpfn[1024], snd_cbuf[1024]; |
| int tfd; |
| |
| (void)strcpy(tmpfn, "smtXXXXXX"); |
| tfd = mkstemp(tmpfn); |
| if (tfd < 0) |
| return; |
| |
| memset(&mh, 0x00, sizeof(mh)); |
| |
| /* set up cmsghdr */ |
| control = (struct cmsghdr *)snd_cbuf; |
| memset(control, 0x00, sizeof(struct cmsghdr)); |
| control->cmsg_len = sizeof(struct cmsghdr) + 4; |
| control->cmsg_level = SOL_SOCKET; |
| control->cmsg_type = SCM_RIGHTS; |
| *(int *)CMSG_DATA(control) = tfd; |
| |
| /* set up msghdr */ |
| iov[0].iov_base = TM; |
| iov[0].iov_len = sizeof(TM); |
| mh.msg_iov = iov; |
| mh.msg_iovlen = 1; |
| mh.msg_flags = 0; |
| mh.msg_control = control; |
| mh.msg_controllen = control->cmsg_len; |
| |
| /* do it */ |
| (void)sendmsg(fd, &mh, 0); |
| (void)close(tfd); |
| (void)unlink(tmpfn); |
| } |