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t_basic.c revision 1.1 
      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