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t_basic.c
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Editing: t_basic.c
/* $NetBSD: t_basic.c,v 1.5 2017/01/13 21:30:40 christos Exp $ */ #include <sys/types.h> #include <sys/param.h> #include <sys/mount.h> #include <atf-c.h> #include <err.h> #include <errno.h> #include <fcntl.h> #include <stdio.h> #include <unistd.h> #include <string.h> #include <stdlib.h> #include <rump/rump.h> #include <rump/rump_syscalls.h> #include <rump/rumpvfs_if_pub.h> #include <fs/tmpfs/tmpfs_args.h> #include <miscfs/umapfs/umap.h> #include "h_macros.h" ATF_TC(basic); ATF_TC_HEAD(basic, tc) { atf_tc_set_md_var(tc, "descr", "basic umapfs mapping"); } static void xtouch(const char *path) { int fd; fd = rump_sys_open(path, O_CREAT | O_RDWR, 0777); if (fd == -1) atf_tc_fail_errno("create %s", path); rump_sys_close(fd); } static void xchown(const char *path, uid_t uid, gid_t gid) { if (rump_sys_chown(path, uid, gid) == -1) atf_tc_fail_errno("chown %s failed", path); } static void testuidgid(const char *path, uid_t uid, gid_t gid) { struct stat sb; if (rump_sys_stat(path, &sb) == -1) atf_tc_fail_errno("stat %s", path); if (uid != (uid_t)-1) { if (sb.st_uid != uid) atf_tc_fail("%s: expected uid %d, got %d", path, uid, sb.st_uid); } if (gid != (gid_t)-1) { if (sb.st_gid != gid) atf_tc_fail("%s: expected gid %d, got %d", path, gid, sb.st_gid); } } ATF_TC_BODY(basic, tc) { struct umap_args umargs; struct tmpfs_args targs; u_long umaps[2][2]; u_long gmaps[2][2]; rump_init(); if (rump_sys_mkdir("/td1", 0777) == -1) atf_tc_fail_errno("mp1"); if (rump_sys_mkdir("/td2", 0777) == -1) atf_tc_fail_errno("mp1"); /* use tmpfs because rumpfs doesn't support ownership */ memset(&targs, 0, sizeof(targs)); targs.ta_version = TMPFS_ARGS_VERSION; targs.ta_root_mode = 0777; if (rump_sys_mount(MOUNT_TMPFS, "/td1", 0, &targs, sizeof(targs)) == -1) atf_tc_fail_errno("could not mount tmpfs td1"); memset(&umargs, 0, sizeof(umargs)); /* * Map td1 uid 555 to td2 uid 777 (yes, IMHO the umapfs * mapping format is counter-intuitive). */ umaps[0][0] = 777; umaps[0][1] = 555; umaps[1][0] = 0; umaps[1][1] = 0; gmaps[0][0] = 4321; gmaps[0][1] = 1234; gmaps[1][0] = 0; gmaps[1][1] = 0; umargs.umap_target = __UNCONST("/td1"); umargs.nentries = 2; umargs.gnentries = 2; umargs.mapdata = umaps; umargs.gmapdata = gmaps; if (rump_sys_mount(MOUNT_UMAP, "/td2", 0, &umargs,sizeof(umargs)) == -1) atf_tc_fail_errno("could not mount umapfs"); xtouch("/td1/noch"); testuidgid("/td1/noch", 0, 0); testuidgid("/td2/noch", 0, 0); xtouch("/td1/nomap"); xchown("/td1/nomap", 1, 2); testuidgid("/td1/nomap", 1, 2); testuidgid("/td2/nomap", -1, -1); xtouch("/td1/forwmap"); xchown("/td1/forwmap", 555, 1234); testuidgid("/td1/forwmap", 555, 1234); testuidgid("/td2/forwmap", 777, 4321); /* * this *CANNOT* be correct??? */ xtouch("/td1/revmap"); /* * should be 777 / 4321 (?), but makes first test fail since * it gets 777 / 4321, i.e. unmapped results. */ xchown("/td2/revmap", 555, 1234); testuidgid("/td1/revmap", 555, 1234); testuidgid("/td2/revmap", 777, 4321); } ATF_TP_ADD_TCS(tp) { ATF_TP_ADD_TC(tp, basic); return 0; /*XXX?*/ }
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