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t_basic.c revision 1.3 
      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