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1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Copyright (c) 2019-2021 FUJITSU LIMITED. All rights reserved.
4  * Author: Yang Xu <xuyang2018.jy@fujitsu.com>
5  */
6 
7 /*\
8  * [Description]
9  *
10  * This testcase checks that quotactl(2) on ext4 filesystem succeeds to:
11  *
12  * - turn on quota with Q_QUOTAON flag for project
13  * - set disk quota limits with Q_SETQUOTA flag for project
14  * - get disk quota limits with Q_GETQUOTA flag for project
15  * - set information about quotafile with Q_SETINFO flag for project
16  * - get information about quotafile with Q_GETINFO flag for project
17  * - get quota format with Q_GETFMT flag for project
18  * - get disk quota limit greater than or equal to ID with Q_GETNEXTQUOTA flag for project
19  * - turn off quota with Q_QUOTAOFF flag for project
20  *
21  * Minimum e2fsprogs version required is 1.43.
22  */
23 
24 #include <errno.h>
25 #include <string.h>
26 #include <unistd.h>
27 #include <sys/stat.h>
28 #include <sys/mount.h>
29 #include "tst_test.h"
30 #include "quotactl_syscall_var.h"
31 
32 #define FMTID QFMT_VFS_V1
33 
34 static int32_t fmt_id = FMTID;
35 static int test_id, mount_flag;
36 static struct dqblk set_dq = {
37 	.dqb_bsoftlimit = 100,
38 	.dqb_valid = QIF_BLIMITS
39 };
40 static struct dqblk res_dq;
41 static struct dqinfo set_qf = {
42 	.dqi_bgrace = 80,
43 	.dqi_valid = IIF_BGRACE
44 };
45 
46 static struct dqinfo res_qf;
47 static int32_t fmt_buf;
48 
49 static struct if_nextdqblk res_ndq;
50 
51 static struct tcase {
52 	int cmd;
53 	int *id;
54 	void *addr;
55 	void *set_data;
56 	void *res_data;
57 	int sz;
58 	char *des;
59 	char *tname;
60 } tcases[] = {
61 	{QCMD(Q_QUOTAON, PRJQUOTA), &fmt_id, NULL,
62 	NULL, NULL, 0, "turn on quota for project",
63 	"QCMD(Q_QUOTAON, PRJQUOTA)"},
64 
65 	{QCMD(Q_SETQUOTA, PRJQUOTA), &test_id, &set_dq,
66 	NULL, NULL, 0, "set disk quota limit for project",
67 	"QCMD(Q_SETQUOTA, PRJQUOTA)"},
68 
69 	{QCMD(Q_GETQUOTA, PRJQUOTA), &test_id, &res_dq,
70 	&set_dq.dqb_bsoftlimit, &res_dq.dqb_bsoftlimit,
71 	sizeof(res_dq.dqb_bsoftlimit), "get disk quota limit for project",
72 	"QCMD(Q_GETQUOTA, PRJQUOTA)"},
73 
74 	{QCMD(Q_SETINFO, PRJQUOTA), &test_id, &set_qf,
75 	NULL, NULL, 0, "set information about quotafile for project",
76 	"QCMD(Q_SETINFO, PRJQUOTA"},
77 
78 	{QCMD(Q_GETINFO, PRJQUOTA), &test_id, &res_qf,
79 	&set_qf.dqi_bgrace, &res_qf.dqi_bgrace, sizeof(res_qf.dqi_bgrace),
80 	"get information about quotafile for project",
81 	"QCMD(Q_GETINFO, PRJQUOTA"},
82 
83 	{QCMD(Q_GETFMT, PRJQUOTA), &test_id, &fmt_buf,
84 	&fmt_id, &fmt_buf, sizeof(fmt_buf),
85 	"get quota format for project", "QCMD(Q_GETFMT, PRJQUOTA)"},
86 
87 	{QCMD(Q_GETNEXTQUOTA, PRJQUOTA), &test_id, &res_ndq,
88 	&test_id, &res_ndq.dqb_id, sizeof(res_ndq.dqb_id),
89 	"get next disk quota limit for project",
90 	"QCMD(Q_GETNEXTQUOTA, PRJQUOTA)"},
91 
92 	{QCMD(Q_QUOTAOFF, PRJQUOTA), &test_id, NULL,
93 	NULL, NULL, 0, "turn off quota for project",
94 	"QCMD(Q_QUOTAOFF, PRJQUOTA)"},
95 
96 };
97 
do_mount(const char * source,const char * target,const char * filesystemtype,unsigned long mountflags,const void * data)98 static void do_mount(const char *source, const char *target,
99 	const char *filesystemtype, unsigned long mountflags,
100 	const void *data)
101 {
102 	TEST(mount(source, target, filesystemtype, mountflags, data));
103 
104 	if (TST_RET == -1 && TST_ERR == ESRCH)
105 		tst_brk(TCONF, "Kernel or device does not support FS quotas");
106 
107 	if (TST_RET == -1) {
108 		tst_brk(TBROK | TTERRNO, "mount(%s, %s, %s, %lu, %p) failed",
109 			source, target, filesystemtype, mountflags, data);
110 	}
111 
112 	if (TST_RET) {
113 		tst_brk(TBROK | TTERRNO, "mount(%s, %s, %s, %lu, %p) failed",
114 			source, target, filesystemtype, mountflags, data);
115 	}
116 
117 	mount_flag = 1;
118 }
119 
setup(void)120 static void setup(void)
121 {
122 	const char *const fs_opts[] = {"-I 256", "-O quota,project", NULL};
123 
124 	quotactl_info();
125 	SAFE_MKFS(tst_device->dev, tst_device->fs_type, fs_opts, NULL);
126 	do_mount(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, NULL);
127 	fd = SAFE_OPEN(MNTPOINT, O_RDONLY);
128 }
129 
cleanup(void)130 static void cleanup(void)
131 {
132 	if (fd > -1)
133 		SAFE_CLOSE(fd);
134 	if (mount_flag && tst_umount(MNTPOINT))
135 		tst_res(TWARN | TERRNO, "umount(%s)", MNTPOINT);
136 }
137 
verify_quota(unsigned int n)138 static void verify_quota(unsigned int n)
139 {
140 	struct tcase *tc = &tcases[n];
141 
142 	res_dq.dqb_bsoftlimit = 0;
143 	res_qf.dqi_igrace = 0;
144 	fmt_buf = 0;
145 
146 	tst_res(TINFO, "Test #%d: %s", n, tc->tname);
147 
148 	TST_EXP_PASS_SILENT(do_quotactl(fd, tc->cmd, tst_device->dev, *tc->id, tc->addr),
149 			"do_quotactl to %s", tc->des);
150 	if (!TST_PASS)
151 		return;
152 
153 	if (memcmp(tc->res_data, tc->set_data, tc->sz)) {
154 		tst_res(TFAIL, "quotactl failed to %s", tc->des);
155 		tst_res_hexd(TINFO, tc->res_data, tc->sz, "retval:   ");
156 		tst_res_hexd(TINFO, tc->set_data, tc->sz, "expected: ");
157 		return;
158 	}
159 
160 	tst_res(TPASS, "quotactl succeeded to %s", tc->des);
161 }
162 
163 static struct tst_test test = {
164 	.needs_root = 1,
165 	.needs_kconfigs = (const char *[]) {
166 		"CONFIG_QFMT_V2",
167 		NULL
168 	},
169 	.min_kver = "4.10", /* commit 689c958cbe6b (ext4: add project quota support) */
170 	.test = verify_quota,
171 	.tcnt = ARRAY_SIZE(tcases),
172 	.setup = setup,
173 	.cleanup = cleanup,
174 	.needs_device = 1,
175 	.dev_fs_type = "ext4",
176 	.mntpoint = MNTPOINT,
177 	.test_variants = QUOTACTL_SYSCALL_VARIANTS,
178 	.needs_cmds = (const char *[]) {
179 		"mkfs.ext4 >= 1.43.0",
180 		NULL
181 	}
182 };
183