1 /* $NetBSD: t_pr.c,v 1.7 2010/07/03 13:37:22 pooka Exp $ */ 2 3 #include <sys/types.h> 4 #include <sys/mount.h> 5 6 #include <atf-c.h> 7 #include <err.h> 8 #include <errno.h> 9 #include <fcntl.h> 10 #include <stdio.h> 11 #include <unistd.h> 12 #include <string.h> 13 #include <stdlib.h> 14 15 #include <rump/rump.h> 16 #include <rump/rump_syscalls.h> 17 18 #include <miscfs/union/union.h> 19 20 #include "../../h_macros.h" 21 22 ATF_TC(multilayer); 23 ATF_TC_HEAD(multilayer, tc) 24 { 25 atf_tc_set_md_var(tc, "descr", "mount_union -b twice"); 26 } 27 28 ATF_TC_BODY(multilayer, tc) 29 { 30 struct union_args unionargs; 31 32 rump_init(); 33 34 if (rump_sys_mkdir("/Tunion", 0777) == -1) 35 atf_tc_fail_errno("mkdir mp1"); 36 if (rump_sys_mkdir("/Tunion2", 0777) == -1) 37 atf_tc_fail_errno("mkdir mp2"); 38 if (rump_sys_mkdir("/Tunion2/A", 0777) == -1) 39 atf_tc_fail_errno("mkdir A"); 40 if (rump_sys_mkdir("/Tunion2/B", 0777) == -1) 41 atf_tc_fail_errno("mkdir B"); 42 43 unionargs.target = __UNCONST("/Tunion2/A"); 44 unionargs.mntflags = UNMNT_BELOW; 45 46 if (rump_sys_mount(MOUNT_UNION, "/Tunion", 0, 47 &unionargs, sizeof(unionargs)) == -1) 48 atf_tc_fail_errno("union mount"); 49 50 unionargs.target = __UNCONST("/Tunion2/B"); 51 unionargs.mntflags = UNMNT_BELOW; 52 53 /* atf_tc_expect_signal(-1, "PR kern/23986"); */ 54 rump_sys_mount(MOUNT_UNION, "/Tunion", 0,&unionargs,sizeof(unionargs)); 55 } 56 57 ATF_TC(devnull1); 58 ATF_TC_HEAD(devnull1, tc) 59 { 60 atf_tc_set_md_var(tc, "descr", "mount_union -b and " 61 "'echo x > /un/null'"); 62 } 63 64 ATF_TC_BODY(devnull1, tc) 65 { 66 struct union_args unionargs; 67 int fd; 68 69 rump_init(); 70 71 if (rump_sys_mkdir("/mp", 0777) == -1) 72 atf_tc_fail_errno("mkdir mp"); 73 74 unionargs.target = __UNCONST("/dev"); 75 unionargs.mntflags = UNMNT_BELOW; 76 77 if (rump_sys_mount(MOUNT_UNION, "/mp", 0, 78 &unionargs, sizeof(unionargs)) == -1) 79 atf_tc_fail_errno("union mount"); 80 81 fd = rump_sys_open("/mp/null", O_WRONLY | O_CREAT | O_TRUNC); 82 83 atf_tc_expect_fail("PR kern/43560"); 84 if (fd == -1 && errno == EROFS) { 85 atf_tc_fail("open returned EROFS"); 86 } else if (fd == -1) { 87 atf_tc_expect_pass(); 88 atf_tc_fail_errno("open fail"); 89 } 90 91 } 92 93 ATF_TC(devnull2); 94 ATF_TC_HEAD(devnull2, tc) 95 { 96 atf_tc_set_md_var(tc, "descr", "mount_union -b and " 97 "'echo x >> /un/null'"); 98 } 99 100 ATF_TC_BODY(devnull2, tc) 101 { 102 struct union_args unionargs; 103 int fd; 104 105 rump_init(); 106 107 if (rump_sys_mkdir("/mp", 0777) == -1) 108 atf_tc_fail_errno("mkdir mp"); 109 110 unionargs.target = __UNCONST("/dev"); 111 unionargs.mntflags = UNMNT_BELOW; 112 113 if (rump_sys_mount(MOUNT_UNION, "/mp", 0, 114 &unionargs, sizeof(unionargs)) == -1) 115 atf_tc_fail_errno("union mount"); 116 117 fd = rump_sys_open("/mp/null", O_WRONLY | O_CREAT | O_APPEND); 118 if (fd == -1) 119 atf_tc_fail_errno("open"); 120 121 atf_tc_expect_signal(-1, "PR kern/43560"); 122 rump_sys_write(fd, &fd, sizeof(fd)); 123 } 124 125 ATF_TP_ADD_TCS(tp) 126 { 127 ATF_TP_ADD_TC(tp, multilayer); 128 ATF_TP_ADD_TC(tp, devnull1); 129 ATF_TP_ADD_TC(tp, devnull2); 130 131 return atf_no_error(); 132 } 133