From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B79EC433E0 for ; Thu, 25 Jun 2020 17:13:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 01D0320706 for ; Thu, 25 Jun 2020 17:13:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="uBMK73OW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404214AbgFYRNX (ORCPT ); Thu, 25 Jun 2020 13:13:23 -0400 Received: from smtp-fw-4101.amazon.com ([72.21.198.25]:59033 "EHLO smtp-fw-4101.amazon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404083AbgFYRNT (ORCPT ); Thu, 25 Jun 2020 13:13:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1593105194; x=1624641194; h=date:from:to:cc:message-id:references:mime-version: in-reply-to:subject; bh=11AvrCyzNHji9lyGjPeiELhY3BM0IihpDFB+FpHECRs=; b=uBMK73OWKQQgR9BdvnXeW88cMsBzV6ek9iy70ec/HFbpDB8mylfOxTvu SZ2QA+kxanxKim5CsiSMSSUcTAe350oLNW4EEr9ztLJKy+vjU0Vm2xrxO PFT6x5Ws7Xp/FGI11esulHA7H+Lr7NgrZwT0sb95dWIU6gXMeJMKttfJP 4=; IronPort-SDR: BNxUfOxITTY69cTtYRuUFgG92kTneAt9tBmeseWFPFzaiiQ29Ny6EhcO9T2+HcZGEpbgPtlHzK wx2fQpb7XHDA== X-Amazon-filename: xattr.c X-IronPort-AV: E=Sophos;i="5.75,280,1589241600"; d="c'?scan'208";a="38552696" Subject: Re: [PATCH v3 00/10] server side user xattr support (RFC 8276) Received: from iad12-co-svc-p1-lb1-vlan3.amazon.com (HELO email-inbound-relay-1a-807d4a99.us-east-1.amazon.com) ([10.43.8.6]) by smtp-border-fw-out-4101.iad4.amazon.com with ESMTP; 25 Jun 2020 17:13:13 +0000 Received: from EX13MTAUEA002.ant.amazon.com (iad55-ws-svc-p15-lb9-vlan2.iad.amazon.com [10.40.159.162]) by email-inbound-relay-1a-807d4a99.us-east-1.amazon.com (Postfix) with ESMTPS id A0243A189E; Thu, 25 Jun 2020 17:13:11 +0000 (UTC) Received: from EX13MTAUEA001.ant.amazon.com (10.43.61.82) by EX13MTAUEA002.ant.amazon.com (10.43.61.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 25 Jun 2020 17:13:11 +0000 Received: from EX13MTAUEA002.ant.amazon.com (10.43.61.77) by EX13MTAUEA001.ant.amazon.com (10.43.61.243) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 25 Jun 2020 17:13:10 +0000 Received: from dev-dsk-fllinden-2c-c1893d73.us-west-2.amazon.com (172.23.141.97) by mail-relay.amazon.com (10.43.61.169) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 25 Jun 2020 17:13:10 +0000 Received: by dev-dsk-fllinden-2c-c1893d73.us-west-2.amazon.com (Postfix, from userid 6262777) id 6E9A5C3318; Thu, 25 Jun 2020 17:13:10 +0000 (UTC) Date: Thu, 25 Jun 2020 17:13:10 +0000 From: Frank van der Linden To: "J. Bruce Fields" CC: , Message-ID: <20200625171310.GA29600@dev-dsk-fllinden-2c-c1893d73.us-west-2.amazon.com> References: <20200623223927.31795-1-fllinden@amazon.com> <20200625165038.GA30655@fieldses.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="J/dobhs11T7y2rNN" Content-Disposition: inline In-Reply-To: <20200625165038.GA30655@fieldses.org> User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org --J/dobhs11T7y2rNN Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline On Thu, Jun 25, 2020 at 12:50:38PM -0400, J. Bruce Fields wrote: > > In general, these patches were, both server and client, tested as > > follows: > > * stress-ng-xattr with 1000 workers > > * Test all corner cases (XATTR_SIZE_*) > > * Test all failure cases (no xattr, setxattr with different or > > invalid flags, etc). > > * Verify the content of xattrs across several operations. > > Do you have some code to share for these tests? > > --b. Sure, my main piece of test code is attached. - Frank --J/dobhs11T7y2rNN Content-Type: text/plain; charset="us-ascii" Content-Disposition: attachment; filename="xattr.c" #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef XATTR_SIZE_MAX #define XATTR_SIZE_MAX 65536 #endif #ifndef XATTR_LIST_MAX #define XATR_LIST_MAX 65536 #endif #define XATTR_TEST_ATTRLEN (5 + 4 + 1) /* "user.NNNN\0" */ #define XATTR_TEST_NATTR_MAX (XATTR_LIST_MAX / XATTR_TEST_ATTRLEN) static const char *xt_dir; typedef struct xattr_test_handle { const char *xt_test; char xt_filename[256]; char xt_attrkey[2 * 256]; /* Long to test limit */ char *xt_attrbuf; ssize_t xt_attrlen; char xt_fillc; ssize_t xt_failoff; int xt_fd; char *xt_listbuf; ssize_t xt_listlen; } xt_hdl; #define xt_value_len(xth) ((xth)->xt_attrlen) #define xt_value_failoff(xth) ((xth)->xt_failoff) #define xt_fillc(xth) ((xth)->xt_fillc) #define xt_filename(xth) ((xth)->xt_filename) #define PAGE_SIZE sysconf(_SC_PAGE_SIZE) static void usage(void) { fprintf(stderr, "usage: xattr \n"); exit(1); } static void fail(xt_hdl *xth, const char *fmt, ...) { va_list ap; printf("%-24s FAIL: ", xth->xt_test); va_start(ap, fmt); vprintf(fmt, ap); va_end(ap); printf("\n"); } static void pass(xt_hdl *xth, const char *fmt, ...) { va_list ap; printf("%-24s PASS: ", xth->xt_test); va_start(ap, fmt); vprintf(fmt, ap); va_end(ap); printf("\n"); } static int xt_set_fs(const char *dir) { int ret; struct stat st; ret = stat(dir, &st); if (ret < 0) return ret; if (!S_ISDIR(st.st_mode)) return -ENOTDIR; xt_dir = dir; return 0; } static xt_hdl * xt_init(const char *test) { xt_hdl *xth; if (xt_dir == NULL) { errno = EINVAL; return NULL; } xth = calloc(1, sizeof (xt_hdl)); if (xth == NULL) return NULL; xth->xt_test = test; snprintf(xth->xt_filename, sizeof xth->xt_filename, "%s/%sXXXXXX", xt_dir, test); /* * Default value, can be changed. */ snprintf(xth->xt_attrkey, sizeof xth->xt_attrkey, "user.%s", test); return xth; } static int xt_file_create(xt_hdl *xth) { int fd; int ret; fd = mkostemp(xth->xt_filename, O_TRUNC); if (fd < 0) return -errno; close(fd); return 0; } static void xt_file_remove(xt_hdl *xth) { unlink(xth->xt_filename); } static int xt_file_open(xt_hdl *xth, int flags) { int fd; fd = open(xth->xt_filename, flags); if (fd < 0) return errno; xth->xt_fd = fd; return fd; } static int xt_file_close(xt_hdl *xth) { if (xth->xt_fd != -1) { close(xth->xt_fd); xth->xt_fd = -1; } } static void xt_value_fill(xt_hdl *xth) { char c; char *p; ssize_t i; if (xth->xt_attrlen == 0) return; p = xth->xt_attrbuf; c = random() & 0xff; if (c == 0) c++; for (i = 0; i < xth->xt_attrlen; i++) p[i] = c; xth->xt_fillc = c; } static void xt_value_free(xt_hdl *xth) { if (xth->xt_attrbuf != NULL) { free(xth->xt_attrbuf); xth->xt_attrbuf = NULL; xth->xt_attrlen = 0; } } static int xt_value_alloc(xt_hdl *xth, ssize_t len) { char *p; xt_value_free(xth); if (len == 0) return 0; p = malloc(len); if (p == NULL) return ENOMEM; xth->xt_attrbuf = p; xth->xt_attrlen = len; xth->xt_failoff = 0; xth->xt_fd = -1; xt_value_fill(xth); return 0; } static int __xt_value_check(xt_hdl *xth, ssize_t len, char c) { ssize_t i; for (i = 0; i < len; i++) { if (xth->xt_attrbuf[i] != c) { xth->xt_failoff = i; return -EINVAL; } } return 0; } static int xt_value_check(xt_hdl *xth, ssize_t len) { return __xt_value_check(xth, len, xth->xt_fillc); } static int xt_list_alloc(xt_hdl *xth, ssize_t size) { char *p; p = calloc(1, size); if (p == NULL) return -ENOMEM; xth->xt_listbuf = p; xth->xt_listlen = size; return 0; } static void xt_value_clear(xt_hdl *xth) { memset(xth->xt_attrbuf, 0, xth->xt_attrlen); } static void xt_list_free(xt_hdl *xth) { if (xth->xt_attrbuf != NULL) { free(xth->xt_listbuf); xth->xt_listbuf = NULL; xth->xt_listlen = 0; } } static void xt_free(xt_hdl *xth) { xt_value_free(xth); xt_list_free(xth); free(xth); } static int xt_set_attr_name(xt_hdl *xth, const char *name) { if (strlen(name) > (sizeof xth->xt_attrkey) - 1) return -EINVAL; strcpy(xth->xt_attrkey, name); return 0; } static int xt_getxattr(xt_hdl *xth) { ssize_t ret; ret = getxattr(xth->xt_filename, xth->xt_attrkey, xth->xt_attrbuf, xth->xt_attrlen); return ret < 0 ? -errno : ret; } static int xt_fgetxattr(xt_hdl *xth) { ssize_t ret; ret = fgetxattr(xth->xt_fd, xth->xt_attrkey, xth->xt_attrbuf, xth->xt_attrlen); return ret < 0 ? -errno : ret; } static int xt_setxattr(xt_hdl *xth, int flags) { int ret; ret = setxattr(xth->xt_filename, xth->xt_attrkey, xth->xt_attrbuf, xth->xt_attrlen, flags); return ret < 0 ? -errno : 0; } static int xt_fsetxattr(xt_hdl *xth, int flags) { int ret; ret = fsetxattr(xth->xt_fd, xth->xt_attrkey, xth->xt_attrbuf, xth->xt_attrlen, flags); return ret < 0 ? -errno : 0; } static int xt_removexattr(xt_hdl *xth) { int ret; ret = removexattr(xth->xt_filename, xth->xt_attrkey); return ret < 0 ? -errno : 0; } static int xt_fremovexattr(xt_hdl *xth) { int ret; ret = fremovexattr(xth->xt_fd, xth->xt_attrkey); return ret < 0 ? -errno : 0; } static int cmpstr(const void *p1, const void *p2) { char *s1, *s2; s1 = *(char * const *) p1; s2 = *(char * const *) p2; if (s1 == s2) return 0; if (s1 == NULL) return 1; if (s2 == NULL) return -1; return strcmp(s1, s2); } static void xattrs_sort(char **list, ssize_t count) { qsort(list, count, sizeof (char *), cmpstr); } static int xattrs_alloc(char ***listp, ssize_t count, ssize_t *lenp) { ssize_t i, n, len, j; size_t slen; char **list; n = count; len = 0; #ifdef LIST_MAX_CHECK if (n > (XATTR_LIST_MAX / 6)) return -EINVAL; #endif list = calloc(n, sizeof (char *)); if (list == NULL) return -ENOMEM; for (i = 0; i < n; i++) { #ifdef LIST_MAX_CHECK if ((len + 10) > XATTR_LIST_MAX) break; #endif len += 10; if (asprintf(&list[i], "user.%04d", (int)i) < 0) break; } if (i < n) { for (j = 0; j < i; j++) { free(list[j]); } free(list); return -ENOMEM; } if (lenp) *lenp = len; *listp = list; return 0; } static int xattrs_free(char **list, ssize_t count) { ssize_t i; for (i = 0; i < count; i++) { if (list[i] != NULL) free(list[i]); } free(list); } static int xattrs_buf2list(char *buf, ssize_t buflen, char ***listp, ssize_t *countp) { ssize_t slen, count, len, i; char *p; char **list; p = buf; len = buflen; count = 0; while (len > 0) { slen = strlen(p) + 1; if (!strncmp(p, "user.", 5)) count++; p += slen; len -= slen; } if (count == 0) { list = NULL; goto out; } p = buf; len = buflen; list = calloc(count, sizeof (char *)); if (list == NULL) return -ENOMEM; i = 0; while (len > 0) { slen = strlen(p) + 1; if (!strncmp(p, "user.", 5)) list[i++] = strdup(p); p += slen; len -= slen; } xattrs_sort(list, count); out: *listp = list; *countp = count; return 0; } static int xattrs_file2list(const char *filename, char ***listp, ssize_t *countp) { ssize_t len, ret; int error; char *buf; len = listxattr(filename, NULL, 0); if (len < 0) return -errno; buf = malloc(len); if (buf == NULL) return -ENOMEM; ret = listxattr(filename, buf, len); if (ret < 0) { error = errno; *listp = NULL; free(buf); return -error; } error = xattrs_buf2list(buf, ret, listp, countp); free(buf); return error; } /* * Compare two string arrays that may have NULL entries. Counts are * the number of entries that include possible NULL entries. */ static int xattrs_cmplists(char **list1, ssize_t count1, char **list2, ssize_t count2) { ssize_t n1, n2; for (n1 = n2 = 0; n1 < count1 && n2 < count2;) { while (n1 < count1 && list1[n1] == NULL) n1++; while (n2 < count2 && list2[n2] == NULL) n2++; if (n1 >= count1) { if (n2 >= count2) return 0; return -1; } if (n2 >= count2) { if (n1 >= count1) return 0; return -1; } if (strcmp(list1[n1++], list2[n2++])) return -1; } return 0; } static int xattrs_listset(const char *filename, char **list, ssize_t len) { ssize_t i; int ret; for (i = 0; i < len; i++) { if (list[i] == NULL) continue; ret = setxattr(filename, list[i], NULL, 0, 0); if (ret < 0) { ret = -errno; fprintf(stderr, "%s: failed at %d (%s)\n", __func__, i, strerror(ret)); return ret; } } return 0; } static int xattrs_listrm(const char *filename, char **list, ssize_t len) { ssize_t i; int ret; for (i = 0; i < len; i++) { if (list[i] == NULL) continue; ret = removexattr(filename, list[i]); if (ret < 0) return -errno; } return 0; } static void __test_xattr_len(xt_hdl *xth, ssize_t len) { int ret; ssize_t xlen; ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } ret = xt_value_alloc(xth, len); if (ret < 0) { fail(xth, "value alloc errno %d (%s)", errno, strerror(errno)); goto cleanup; } ret = xt_setxattr(xth, 0); if (ret < 0) { fail(xth, "setxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } xt_value_clear(xth); xlen = xt_getxattr(xth); if (xlen < 0) { fail(xth, "getxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } if (xlen != xt_value_len(xth)) { fail(xth, "getxattr length mismatch (expected %lld got %lld)", (long long)xt_value_len(xth), (long long)xlen); goto cleanup; } ret = xt_value_check(xth, len); if (ret < 0) { fail(xth, "value check failed at offset %lld", xt_value_failoff(xth)); goto cleanup; } pass(xth, "success setting / getting %lld length xattr", (long long)len); cleanup: xt_file_remove(xth); } void test_xattr_probe() { int ret; xt_hdl *xth; ssize_t xlen; char c; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } ret = xt_value_alloc(xth, 37); if (ret < 0) { fail(xth, "value alloc failure"); goto cleanup; } c = xt_fillc(xth); ret = xt_setxattr(xth, 0); if (ret < 0) { fail(xth, "setxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } ret = xt_value_alloc(xth, 0); if (ret < 0) { fail(xth, "value reset failure"); goto cleanup; } xlen = xt_getxattr(xth); if (xlen < 0) { fail(xth, "getxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } if (xlen != 37) { fail(xth, "getxattr length mismatch (expected 37, got %lld)", (long long)xlen); goto cleanup; } ret = xt_value_alloc(xth, 37); if (ret < 0) { fail(xth, "value realloc failure"); goto cleanup; } xlen = xt_getxattr(xth); if (xlen < 0) { fail(xth, "getxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } if (__xt_value_check(xth, 37, c) < 0) { fail(xth, "value check failed at offset %lld", xt_value_failoff(xth)); goto cleanup; } pass(xth, "getxattr length probe works correctly"); cleanup: xt_file_remove(xth); xt_free(xth); } void test_xattr_0() { int ret; xt_hdl *xth; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } __test_xattr_len(xth, 0); xt_free(xth); } void test_xattr_1() { xt_hdl *xth; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } __test_xattr_len(xth, 1); xt_free(xth); } void test_xattr_256() { xt_hdl *xth; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } __test_xattr_len(xth, 256); xt_free(xth); } void test_xattr_1page() { xt_hdl *xth; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } __test_xattr_len(xth, PAGE_SIZE); xt_free(xth); } void test_xattr_2pages() { xt_hdl *xth; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } __test_xattr_len(xth, 2 * PAGE_SIZE); xt_free(xth); } void test_xattr_max() { xt_hdl *xth; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } __test_xattr_len(xth, 65536); xt_free(xth); } void test_xattr_toolarge() { xt_hdl *xth; ssize_t ret; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } ret = xt_value_alloc(xth, XATTR_SIZE_MAX + 1); if (ret < 0) { fail(xth, "value alloc errno %d (%s)", errno, strerror(errno)); goto cleanup; } ret = xt_setxattr(xth, 0); if (ret != -E2BIG) { fail(xth, "expected %d got %d (%s)", E2BIG, -ret, ret == 0 ? "no error" : strerror(-ret)); goto cleanup; } pass(xth, "setxattr beyond max length fails as expected"); cleanup: xt_file_remove(xth); xt_free(xth); } void test_setxattr_create() { xt_hdl *xth; int ret; ssize_t xlen; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } ret = xt_value_alloc(xth, 16); if (ret < 0) { fail(xth, "value alloc errno %d (%s)", errno, strerror(errno)); goto cleanup; } /* * XATTR_CREATE for a non-existing xattr ==> OK */ ret = xt_setxattr(xth, XATTR_CREATE); if (ret < 0) { fail(xth, "setxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } /* * XATTR_CREATE for an existing xattr ==> EEXIST */ ret = xt_setxattr(xth, XATTR_CREATE); if (ret != -EEXIST) { fail(xth, "expected %d got %d (%s)", EEXIST, -ret, ret == 0 ? "no error" : strerror(-ret)); goto cleanup; } /* * Verify value (xattr should still exist). */ xt_value_clear(xth); xlen = xt_getxattr(xth); if (xlen < 0) { fail(xth, "getxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } if (xlen != xt_value_len(xth)) { fail(xth, "getxattr length mismatch (expected %lld got %lld)", (long long)xt_value_len(xth), (long long)xlen); goto cleanup; } ret = xt_value_check(xth, 16); if (ret < 0) { fail(xth, "value check failed at offset %lld", xt_value_failoff(xth)); goto cleanup; } pass(xth, "setxattr with XATTR_CREATE behaves correctly"); cleanup: xt_file_remove(xth); xt_free(xth); } void test_setxattr_replace() { xt_hdl *xth; int ret; ssize_t xlen; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } ret = xt_value_alloc(xth, 16); if (ret < 0) { fail(xth, "value alloc errno %d (%s)", errno, strerror(errno)); goto cleanup; } /* * XATTR_REPLACE for a non-existing xattr ==> ENODATA */ ret = xt_setxattr(xth, XATTR_REPLACE); if (ret != -ENODATA) { fail(xth, "expected %d got %d (%s)", ENODATA, -ret, ret == 0 ? "no error" : strerror(-ret)); goto cleanup; } /* * Create it, try to replace it afterwards. */ ret = xt_setxattr(xth, 0); if (ret < 0) { fail(xth, "setxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } xt_value_fill(xth); /* * XATTR_REPLACE should work. */ ret = xt_setxattr(xth, XATTR_REPLACE); if (ret < 0) { fail(xth, "setxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } /* * Verify value (xattr should still exist). */ xt_value_clear(xth); xlen = xt_getxattr(xth); if (xlen < 0) { fail(xth, "getxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } if (xlen != xt_value_len(xth)) { fail(xth, "getxattr length mismatch (expected %lld got %lld)", (long long)xt_value_len(xth), (long long)xlen); goto cleanup; } ret = xt_value_check(xth, 16); if (ret < 0) { fail(xth, "value check failed at offset %lld", xt_value_failoff(xth)); goto cleanup; } pass(xth, "setxattr with XATTR_REPLACE behaves correctly"); cleanup: xt_file_remove(xth); xt_free(xth); } void test_setxattr_badflag() { xt_hdl *xth; int ret; ssize_t xlen; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } ret = xt_value_alloc(xth, 16); if (ret < 0) { fail(xth, "value alloc errno %d (%s)", errno, strerror(errno)); goto cleanup; } /* * XATTR_REPLACE for a non-existing xattr ==> ENODATA */ ret = xt_setxattr(xth, XATTR_REPLACE); if (ret != -ENODATA) { fail(xth, "expected %d got %d (%s)", ENODATA, -ret, ret == 0 ? "no error" : strerror(-ret)); goto cleanup; } ret = xt_setxattr(xth, -1); if (ret != -EINVAL) { fail(xth, "setxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } pass(xth, "setxattr with a bad flag behaves correctly"); cleanup: xt_file_remove(xth); xt_free(xth); } void test_removexattr() { xt_hdl *xth; int ret; ssize_t xlen; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } ret = xt_value_alloc(xth, 16); if (ret < 0) { fail(xth, "value alloc errno %d (%s)", errno, strerror(errno)); goto cleanup; } ret = xt_removexattr(xth); if (ret != -ENODATA) { fail(xth, "expected %d got %d (%s)", ENODATA, -ret, ret == 0 ? "no error" : strerror(-ret)); goto cleanup; } /* * Create it, try to remove it afterwards. */ ret = xt_setxattr(xth, 0); if (ret < 0) { fail(xth, "setxattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } ret = xt_removexattr(xth); if (ret < 0) { fail(xth, "removexattr errno %d (%s)", errno, strerror(errno)); goto cleanup; } /* * See if it's actually gone. */ xlen = xt_getxattr(xth); if (xlen != -ENODATA) { fail(xth, "expected %d got %d (%s)", ENODATA, -xlen, xlen == 0 ? "no error" : strerror(xlen)); goto cleanup; } pass(xth, "removexattr behaves correctly"); cleanup: xt_file_remove(xth); xt_free(xth); } void __test_listxattr(xt_hdl *xth, ssize_t nattr) { ssize_t len, alen; char **list1, **list2; int ret; list1 = list2 = NULL; ret = xattrs_alloc(&list1, nattr, &alen); if (ret < 0) { fail(xth, "failed to allocate xattr names"); return; } ret = xattrs_listset(xt_filename(xth), list1, nattr); if (ret < 0) { fail(xth, "failed to set xattrs"); goto out; } ret = xattrs_file2list(xt_filename(xth), &list2, &len); if (ret < 0) { if (alen > XATTR_SIZE_MAX && ret == -E2BIG) { /* * Expected failure. */ goto rm; } fail(xth, "failed to get xattrs"); goto out; } if (xattrs_cmplists(list1, nattr, list2, len)) { ret = -EINVAL; /* XXX */ fail(xth, "list comparison failed"); goto out; } rm: ret = xattrs_listrm(xt_filename(xth), list1, nattr); if (ret < 0) { fail(xth, "failed to remove xattrs"); goto out; } pass(xth, "expected results listing and removing %lld xattrs", (long long)nattr); out: if (list2 != NULL) xattrs_free(list2, len); if (list1 != NULL) xattrs_free(list1, nattr); } void test_listxattr_1() { xt_hdl *xth; int ret; char **list1, **list2; ssize_t len; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } __test_listxattr(xth, 1); xt_file_remove(xth); xt_free(xth); } void test_listxattr_256() { xt_hdl *xth; int ret; char **list1, **list2; ssize_t len; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } __test_listxattr(xth, 256); xt_file_remove(xth); xt_free(xth); } void test_listxattr_large() { xt_hdl *xth; int ret; char **list1, **list2; ssize_t len; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } __test_listxattr(xth, XATTR_TEST_NATTR_MAX - 2); xt_file_remove(xth); xt_free(xth); } void test_listxattr_2big() { xt_hdl *xth; int ret; char **list1, **list2; ssize_t len; xth = xt_init(__func__); if (xth == NULL) { printf("%-24s FAIL: can't initialize handle", __func__); return; } ret = xt_file_create(xth); if (ret < 0) { fail(xth, "file create errno %d (%s)", errno, strerror(errno)); return; } __test_listxattr(xth, XATTR_TEST_NATTR_MAX + 1); xt_file_remove(xth); xt_free(xth); } int main(int argc, char **argv) { struct stat st; int fd, ret; if (argc < 2) usage(); ret = xt_set_fs(argv[1]); if (ret != 0) { fprintf(stderr, "xattr: set fs: %s\n", strerror(ret)); exit(1); } srandom(time(NULL)); test_xattr_probe(); test_xattr_0(); test_xattr_1(); test_xattr_256(); test_xattr_1page(); test_xattr_2pages(); test_xattr_max(); test_xattr_toolarge(); test_setxattr_create(); test_setxattr_replace(); test_setxattr_badflag(); test_removexattr(); test_listxattr_1(); test_listxattr_256(); test_listxattr_large(); test_listxattr_2big(); return 0; } --J/dobhs11T7y2rNN--