Update ZTS to work on FreeBSD

Update the common ZTS scripts and individual test cases as needed 
in order to allow them to be run on FreeBSD.  The high level goal
is to provide compatibility wrappers whenever possible to minimize
changes to individual test cases.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Signed-off-by: Ryan Moeller <ryan@ixsystems.com>
Closes #9692

tests/zfs-tests/cmd/Makefile.am

@@ -2,7 +2,6 @@ EXTRA_DIST = file_common.h
 
 SUBDIRS = \
 	chg_usr_exec \
-	user_ns_exec \
 	devname2devid \
 	dir_rd_update \
 	file_check \
@@ -19,11 +18,16 @@ SUBDIRS = \
 	mmap_libaio \
 	mmapwrite \
 	nvlist_to_lua \
-	randfree_file \
 	randwritecomp \
 	readmmap \
 	rename_dir \
 	rm_lnkcnt_zero_file \
-	threadsappend \
-	xattrtest \
-	stride_dd
+	stride_dd \
+	threadsappend
+
+if BUILD_LINUX
+SUBDIRS += \
+	randfree_file \
+	user_ns_exec \
+	xattrtest
+endif

tests/zfs-tests/cmd/mkfile/Makefile.am

@@ -4,3 +4,6 @@ pkgexecdir = $(datadir)/@PACKAGE@/zfs-tests/bin
 
 pkgexec_PROGRAMS = mkfile
 mkfile_SOURCES = mkfile.c
+if BUILD_FREEBSD
+mkfile_LDADD = -L/usr/local/lib -lintl
+endif

tests/zfs-tests/cmd/mkfile/mkfile.c

@@ -137,8 +137,17 @@ main(int argc, char **argv)
 			argv++;
 			argc--;
 			continue;
-		}
-		if (lseek(fd, (off_t)size-1, SEEK_SET) < 0) {
+		} else if (fchown(fd, getuid(), getgid()) < 0) {
+			saverr = errno;
+			(void) fprintf(stderr, gettext(
+			    "Could not set owner/group of %s: %s\n"),
+			    argv[1], strerror(saverr));
+			(void) close(fd);
+			errors++;
+			argv++;
+			argc--;
+			continue;
+		} else if (lseek(fd, (off_t)size-1, SEEK_SET) < 0) {
 			saverr = errno;
 			(void) fprintf(stderr, gettext(
 			    "Could not seek to offset %ld in %s: %s\n"),

tests/zfs-tests/cmd/mkfiles/mkfiles.c

@@ -55,6 +55,10 @@ main(int argc, char **argv)
 			(void) fprintf(stderr, "Failed to create %s %s\n", buf,
 			    strerror(errno));
 			return (-4);
+		} else if (fchown(fd, getuid(), getgid()) < 0) {
+			(void) fprintf(stderr, "Failed to chown %s %s\n", buf,
+			    strerror(errno));
+			return (-5);
 		}
 		(void) close(fd);
 	}

tests/zfs-tests/cmd/mktree/mktree.c

@@ -30,7 +30,9 @@
 #include <unistd.h>
 #include <string.h>
 #include <fcntl.h>
+#ifdef __linux__
 #include <sys/xattr.h>
+#endif
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/param.h>
@@ -176,11 +178,13 @@ crtfile(char *pname)
 		exit(errno);
 	}
 
+#ifdef __linux__
 	if (fsetxattr(fd, "user.xattr", pbuf, 1024, 0) < 0) {
 		(void) fprintf(stderr, "fsetxattr(fd, \"xattr\", pbuf, "
 		    "1024, 0) failed.\n[%d]: %s.\n", errno, strerror(errno));
 		exit(errno);
 	}
+#endif
 
 	(void) close(fd);
 	free(pbuf);