1 /* $NetBSD: t_basic.c,v 1.1 2010/03/30 01:05:28 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 #include <rump/rumpvfs_if_pub.h> 18 19 #include <fs/tmpfs/tmpfs_args.h> 20 #include <miscfs/umapfs/umap.h> 21 22 #define USE_ATF 23 #include "../../h_macros.h" 24 25 #ifdef USE_ATF 26 ATF_TC(basic); 27 ATF_TC_HEAD(basic, tc) 28 { 29 atf_tc_set_md_var(tc, "descr", "basic umapfs mapping"); 30 } 31 #else 32 #define atf_tc_fail(...) errx(1, __VA_ARGS__) 33 #endif 34 35 /* deal with time_t change for running this on 5.0 */ 36 #if __NetBSD_Prereq__(5,99,7) 37 #define statfn rump_sys_stat 38 #else 39 #define statfn rump_pub_sys___stat30 40 #endif 41 42 static void 43 xtouch(const char *path) 44 { 45 int fd; 46 47 fd = rump_sys_open(path, O_CREAT | O_RDWR, 0777); 48 if (fd == -1) 49 atf_tc_fail_errno("create %s", path); 50 rump_sys_close(fd); 51 } 52 53 static void 54 xchown(const char *path, uid_t uid, gid_t gid) 55 { 56 57 if (rump_sys_chown(path, uid, gid) == -1) 58 atf_tc_fail_errno("chown %s failed", path); 59 } 60 61 static void 62 testuidgid(const char *path, uid_t uid, gid_t gid) 63 { 64 struct stat sb; 65 66 if (statfn(path, &sb) == -1) 67 atf_tc_fail_errno("stat %s", path); 68 if (uid != (uid_t)-1) { 69 if (sb.st_uid != uid) 70 atf_tc_fail("%s: expected uid %d, got %d", 71 path, uid, sb.st_uid); 72 } 73 if (gid != (gid_t)-1) { 74 if (sb.st_gid != gid) 75 atf_tc_fail("%s: expected gid %d, got %d", 76 path, gid, sb.st_gid); 77 } 78 } 79 80 #ifdef USE_ATF 81 ATF_TC_BODY(basic, tc) 82 #else 83 int main(int argc, char *argv[]) 84 #endif 85 { 86 struct umap_args umargs; 87 struct tmpfs_args targs; 88 u_long umaps[2][2]; 89 u_long gmaps[2][2]; 90 91 rump_init(); 92 if (rump_sys_mkdir("/td1", 0777) == -1) 93 atf_tc_fail_errno("mp1"); 94 if (rump_sys_mkdir("/td2", 0777) == -1) 95 atf_tc_fail_errno("mp1"); 96 97 /* use tmpfs because rumpfs doesn't support ownership */ 98 memset(&targs, 0, sizeof(targs)); 99 targs.ta_version = TMPFS_ARGS_VERSION; 100 targs.ta_root_mode = 0777; 101 if (rump_sys_mount(MOUNT_TMPFS, "/td1", 0, &targs, sizeof(targs)) == -1) 102 atf_tc_fail_errno("could not mount tmpfs td1"); 103 104 memset(&umargs, 0, sizeof(umargs)); 105 106 /* 107 * Map td1 uid 555 to td2 uid 777 (yes, IMHO the umapfs 108 * mapping format is counter-intuitive). 109 */ 110 umaps[0][0] = 777; 111 umaps[0][1] = 555; 112 umaps[1][0] = 0; 113 umaps[1][1] = 0; 114 gmaps[0][0] = 4321; 115 gmaps[0][1] = 1234; 116 gmaps[1][0] = 0; 117 gmaps[1][1] = 0; 118 119 umargs.umap_target = __UNCONST("/td1"); 120 umargs.nentries = 2; 121 umargs.gnentries = 2; 122 umargs.mapdata = umaps; 123 umargs.gmapdata = gmaps; 124 125 if (rump_sys_mount(MOUNT_UMAP, "/td2", 0, &umargs,sizeof(umargs)) == -1) 126 atf_tc_fail_errno("could not mount umapfs"); 127 128 xtouch("/td1/noch"); 129 testuidgid("/td1/noch", 0, 0); 130 testuidgid("/td2/noch", 0, 0); 131 132 xtouch("/td1/nomap"); 133 xchown("/td1/nomap", 1, 2); 134 testuidgid("/td1/nomap", 1, 2); 135 testuidgid("/td2/nomap", -1, -1); 136 137 xtouch("/td1/forwmap"); 138 xchown("/td1/forwmap", 555, 1234); 139 testuidgid("/td1/forwmap", 555, 1234); 140 testuidgid("/td2/forwmap", 777, 4321); 141 142 /* 143 * this *CANNOT* be correct??? 144 */ 145 xtouch("/td1/revmap"); 146 /* 147 * should be 777 / 4321 (?), but makes first test fail since 148 * it gets 777 / 4321, i.e. unmapped results. 149 */ 150 xchown("/td2/revmap", 555, 1234); 151 testuidgid("/td1/revmap", 555, 1234); 152 testuidgid("/td2/revmap", 777, 4321); 153 154 } 155 156 #ifdef USE_ATF 157 ATF_TP_ADD_TCS(tp) 158 { 159 ATF_TP_ADD_TC(tp, basic); 160 return 0; /*XXX?*/ 161 } 162 #endif 163