tests/fs/kernfs/t_basic.c

   1 /*      $NetBSD: t_basic.c,v 1.3 2010/05/31 23:44:54 pooka Exp $        */
   2
   3 #include <sys/types.h>
   4 #include <sys/mount.h>
   5 #include <sys/module.h>
   6 #include <sys/dirent.h>
   7 #include <sys/sysctl.h>
   8
   9 #include <atf-c.h>
  10 #include <err.h>
  11 #include <errno.h>
  12 #include <fcntl.h>
  13 #include <stdio.h>
  14 #include <unistd.h>
  15 #include <string.h>
  16 #include <stdlib.h>
  17
  18 #include <rump/rump.h>
  19 #include <rump/rump_syscalls.h>
  20
  21 #include <miscfs/kernfs/kernfs.h>
  22
  23 #include "../../h_macros.h"
  24
  25 ATF_TC(getdents);
  26 ATF_TC_HEAD(getdents, tc)
  27 {
  28
  29         atf_tc_set_md_var(tc, "descr", "kernfs directory contains files");
  30 }
  31
  32 static void
  33 mountkernfs(void)
  34 {
  35
  36         rump_init();
  37
  38         if (rump_sys_mkdir("/kern", 0777) == -1)
  39                 atf_tc_fail_errno("mkdir /kern");
  40         if (rump_sys_mount(MOUNT_KERNFS, "/kern", 0, NULL, 0) == -1)
  41                 atf_tc_fail_errno("could not mount kernfs");
  42 }
  43
  44 ATF_TC_BODY(getdents, tc)
  45 {
  46         struct dirent *dent;
  47         char buf[8192];
  48         int dfd;
  49
  50         mountkernfs();
  51
  52         if ((dfd = rump_sys_open("/kern", O_RDONLY)) == -1)
  53                 atf_tc_fail_errno("can't open directory");
  54         if (rump_sys_getdents(dfd, buf, sizeof(buf)) == -1)
  55                 atf_tc_fail_errno("getdents");
  56
  57         /*
  58          * Check that we get the first three values (., .., boottime).
  59          * Make more complete by autogenerating list from kernfs_vnops.c?
  60          */
  61         dent = (void *)buf;
  62         ATF_REQUIRE_STREQ(dent->d_name, ".");
  63         dent = _DIRENT_NEXT(dent);
  64         ATF_REQUIRE_STREQ(dent->d_name, "..");
  65         dent = _DIRENT_NEXT(dent);
  66         ATF_REQUIRE_STREQ(dent->d_name, "boottime");
  67
  68         /* done */
  69 }
  70
  71 ATF_TC(hostname);
  72 ATF_TC_HEAD(hostname, tc)
  73 {
  74
  75         atf_tc_set_md_var(tc, "descr", "/kern/hostname changes hostname");
  76 }
  77
  78 static char *
  79 getthehost(void)
  80 {
  81         static char buf[8192];
  82         int mib[2];
  83         size_t blen;
  84
  85         mib[0] = CTL_KERN;
  86         mib[1] = KERN_HOSTNAME;
  87         blen = sizeof(buf);
  88         if (rump_sys___sysctl(mib, 2, buf, &blen, NULL, 0) == -1)
  89                 atf_tc_fail_errno("sysctl gethostname");
  90
  91         return buf;
  92 }
  93
  94 #define NEWHOSTNAME "turboton roos-berg"
  95 ATF_TC_BODY(hostname, tc)
  96 {
  97         char buf[8192];
  98         char *shost, *p;
  99         int fd;
 100
 101         mountkernfs();
 102         if ((fd = rump_sys_open("/kern/hostname", O_RDWR)) == -1)
 103                 atf_tc_fail_errno("open hostname");
 104
 105         /* check initial match */
 106         shost = getthehost();
 107         buf[0] = '\0';
 108         if (rump_sys_read(fd, buf, sizeof(buf)) == -1)
 109                 atf_tc_fail_errno("read hostname");
 110         p = strchr(buf, '\n');
 111         if (p)
 112                  *p = '\0';
 113         ATF_REQUIRE_STREQ_MSG(buf, shost, "initial hostname mismatch");
 114
 115         /* check changing hostname works */
 116         if (rump_sys_pwrite(fd, NEWHOSTNAME, strlen(NEWHOSTNAME), 0)
 117             != strlen(NEWHOSTNAME)) {
 118                 atf_tc_fail_errno("write new hostname");
 119         }
 120
 121         shost = getthehost();
 122         ATF_REQUIRE_STREQ_MSG(NEWHOSTNAME, shost, "modified hostname mismatch");
 123
 124         /* done */
 125 }
 126
 127 ATF_TP_ADD_TCS(tp)
 128 {
 129         ATF_TP_ADD_TC(tp, hostname);
 130         ATF_TP_ADD_TC(tp, getdents);
 131
 132         return atf_no_error();
 133 }