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/param.h> 5 #include <sys/mount.h> 6 7 #include <atf-c.h> 8 #include <err.h> 9 #include <errno.h> 10 #include <fcntl.h> 11 #include <stdio.h> 12 #include <unistd.h> 13 #include <string.h> 14 #include <stdlib.h> 15 16 #include <rump/rump.h> 17 #include <rump/rump_syscalls.h> 18 #include <rump/rumpvfs_if_pub.h> 19 20 #include <fs/tmpfs/tmpfs_args.h> 21 #include <miscfs/umapfs/umap.h> 22 23 #include "../../h_macros.h" 24 25 ATF_TC(basic); 26 ATF_TC_HEAD(basic, tc) 27 { 28 atf_tc_set_md_var(tc, "descr", "basic umapfs mapping"); 29 } 30 31 /* deal with time_t change for running this on 5.0 */ 32 #if __NetBSD_Prereq__(5,99,7) 33 #define statfn rump_sys_stat 34 #else 35 #define statfn rump_pub_sys___stat30 36 #endif 37 38 static void 39 xtouch(const char *path) 40 { 41 int fd; 42 43 fd = rump_sys_open(path, O_CREAT | O_RDWR, 0777); 44 if (fd == -1) 45 atf_tc_fail_errno("create %s", path); 46 rump_sys_close(fd); 47 } 48 49 static void 50 xchown(const char *path, uid_t uid, gid_t gid) 51 { 52 53 if (rump_sys_chown(path, uid, gid) == -1) 54 atf_tc_fail_errno("chown %s failed", path); 55 } 56 57 static void 58 testuidgid(const char *path, uid_t uid, gid_t gid) 59 { 60 struct stat sb; 61 62 if (statfn(path, &sb) == -1) 63 atf_tc_fail_errno("stat %s", path); 64 if (uid != (uid_t)-1) { 65 if (sb.st_uid != uid) 66 atf_tc_fail("%s: expected uid %d, got %d", 67 path, uid, sb.st_uid); 68 } 69 if (gid != (gid_t)-1) { 70 if (sb.st_gid != gid) 71 atf_tc_fail("%s: expected gid %d, got %d", 72 path, gid, sb.st_gid); 73 } 74 } 75 76 ATF_TC_BODY(basic, tc) 77 { 78 struct umap_args umargs; 79 struct tmpfs_args targs; 80 u_long umaps[2][2]; 81 u_long gmaps[2][2]; 82 83 rump_init(); 84 if (rump_sys_mkdir("/td1", 0777) == -1) 85 atf_tc_fail_errno("mp1"); 86 if (rump_sys_mkdir("/td2", 0777) == -1) 87 atf_tc_fail_errno("mp1"); 88 89 /* use tmpfs because rumpfs doesn't support ownership */ 90 memset(&targs, 0, sizeof(targs)); 91 targs.ta_version = TMPFS_ARGS_VERSION; 92 targs.ta_root_mode = 0777; 93 if (rump_sys_mount(MOUNT_TMPFS, "/td1", 0, &targs, sizeof(targs)) == -1) 94 atf_tc_fail_errno("could not mount tmpfs td1"); 95 96 memset(&umargs, 0, sizeof(umargs)); 97 98 /* 99 * Map td1 uid 555 to td2 uid 777 (yes, IMHO the umapfs 100 * mapping format is counter-intuitive). 101 */ 102 umaps[0][0] = 777; 103 umaps[0][1] = 555; 104 umaps[1][0] = 0; 105 umaps[1][1] = 0; 106 gmaps[0][0] = 4321; 107 gmaps[0][1] = 1234; 108 gmaps[1][0] = 0; 109 gmaps[1][1] = 0; 110 111 umargs.umap_target = __UNCONST("/td1"); 112 umargs.nentries = 2; 113 umargs.gnentries = 2; 114 umargs.mapdata = umaps; 115 umargs.gmapdata = gmaps; 116 117 if (rump_sys_mount(MOUNT_UMAP, "/td2", 0, &umargs,sizeof(umargs)) == -1) 118 atf_tc_fail_errno("could not mount umapfs"); 119 120 xtouch("/td1/noch"); 121 testuidgid("/td1/noch", 0, 0); 122 testuidgid("/td2/noch", 0, 0); 123 124 xtouch("/td1/nomap"); 125 xchown("/td1/nomap", 1, 2); 126 testuidgid("/td1/nomap", 1, 2); 127 testuidgid("/td2/nomap", -1, -1); 128 129 xtouch("/td1/forwmap"); 130 xchown("/td1/forwmap", 555, 1234); 131 testuidgid("/td1/forwmap", 555, 1234); 132 testuidgid("/td2/forwmap", 777, 4321); 133 134 /* 135 * this *CANNOT* be correct??? 136 */ 137 xtouch("/td1/revmap"); 138 /* 139 * should be 777 / 4321 (?), but makes first test fail since 140 * it gets 777 / 4321, i.e. unmapped results. 141 */ 142 xchown("/td2/revmap", 555, 1234); 143 testuidgid("/td1/revmap", 555, 1234); 144 testuidgid("/td2/revmap", 777, 4321); 145 146 } 147 148 ATF_TP_ADD_TCS(tp) 149 { 150 ATF_TP_ADD_TC(tp, basic); 151 return 0; /*XXX?*/ 152 } 153