[PATCH 7/9] tests: Some additional checks for ioctl_dm test
Eugene Syromyatnikov
evgsyr at gmail.com
Tue Oct 11 22:39:22 UTC 2016
---
tests/ioctl_dm.c | 505 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 505 insertions(+)
diff --git a/tests/ioctl_dm.c b/tests/ioctl_dm.c
index 24232b7..0b2c5a7 100644
--- a/tests/ioctl_dm.c
+++ b/tests/ioctl_dm.c
@@ -2,13 +2,26 @@
#ifdef HAVE_LINUX_DM_IOCTL_H
+# include <errno.h>
# include <inttypes.h>
+# include <stdbool.h>
# include <stdio.h>
# include <stddef.h>
# include <string.h>
# include <sys/ioctl.h>
# include <linux/dm-ioctl.h>
+# define STR32 "AbCdEfGhIjKlMnOpQrStUvWxYz012345"
+
+static const char str129[] = STR32 STR32 STR32 STR32 "6";
+
+static const __u64 dts_sector_base = (__u64) 0xdeadca75facef157ULL;
+static const __u64 dts_sector_step = (__u64) 0x100000001ULL;
+static const __u64 dts_length_base = (__u64) 0xbadc0dedda7a1057ULL;
+static const __u64 dts_length_step = (__u64) 0x700000007ULL;
+static const __s32 dts_status_base = (__s32) 3141592653U;
+static const __s32 dts_status_step = 0x1234;
+
static struct s {
struct dm_ioctl ioc;
union {
@@ -24,6 +37,43 @@ static struct s {
} u;
} s;
+struct dm_table_open_test {
+ struct dm_ioctl ioc;
+ struct dm_target_spec target0;
+ char param0[1];
+ struct dm_target_spec target1;
+ char param1[2];
+ struct dm_target_spec target2;
+ char param2[3];
+ struct dm_target_spec target3;
+ char param3[4];
+ struct dm_target_spec target4;
+ char param4[5];
+ struct dm_target_spec target5;
+ char param5[6];
+ struct dm_target_spec target6;
+ char param6[7];
+ struct dm_target_spec target7;
+ char param7[8];
+ struct dm_target_spec target8;
+ char param8[9];
+ struct dm_target_spec target9;
+ char param9[10];
+};
+
+struct dm_target_msg_test {
+ struct dm_ioctl ioc;
+ struct dm_target_msg msg;
+};
+
+struct args {
+ unsigned int arg;
+ const char *str;
+ bool has_params;
+ bool has_event_nr;
+};
+
+
static void
init_s(struct dm_ioctl *s, size_t size, size_t offs)
{
@@ -38,9 +88,147 @@ init_s(struct dm_ioctl *s, size_t size, size_t offs)
strcpy(s->uuid, "uuu");
}
+static void
+init_dm_target_spec(struct dm_target_spec *ptr, uint32_t id)
+{
+ ptr->sector_start = dts_sector_base + dts_sector_step * id;
+ ptr->length = dts_length_base + dts_length_step * id;
+ ptr->status = dts_status_base + dts_status_step * id;
+
+ strncpy(ptr->target_type, str129 +
+ id % (sizeof(str129) - sizeof(ptr->target_type)),
+ id % (sizeof(ptr->target_type) + 1));
+ if (id % (sizeof(ptr->target_type) + 1) < sizeof(ptr->target_type))
+ ptr->target_type[id % (sizeof(ptr->target_type) + 1)] = '\0';
+}
+
+static void
+print_dm_target_spec(struct dm_target_spec *ptr, uint32_t id)
+{
+ printf("{sector_start=%" PRI__u64 ", length=%" PRI__u64 ", "
+ "target_type=\"%.*s\", string=",
+ dts_sector_base + dts_sector_step * id,
+ dts_length_base + dts_length_step * id,
+ (int) (id % (sizeof(ptr->target_type) + 1)),
+ str129 + id % (sizeof(str129) - sizeof(ptr->target_type)));
+}
+
+# define ARG_STR(_arg) (_arg), #_arg
+
int
main(void)
{
+ /* We can't check these properly for now */
+ static struct args dummy_check_cmds_nodev[] = {
+ { ARG_STR(DM_REMOVE_ALL), false },
+ { ARG_STR(DM_LIST_DEVICES), true },
+ { ARG_STR(DM_LIST_VERSIONS), true },
+ };
+ static struct args dummy_check_cmds[] = {
+ { ARG_STR(DM_DEV_CREATE), false },
+ { ARG_STR(DM_DEV_REMOVE), false, true },
+ { ARG_STR(DM_DEV_STATUS), false },
+ { ARG_STR(DM_DEV_WAIT), true, true },
+ { ARG_STR(DM_TABLE_CLEAR), false },
+ { ARG_STR(DM_TABLE_DEPS), true },
+ { ARG_STR(DM_TABLE_STATUS), true },
+ };
+
+ struct dm_ioctl *dm_arg =
+ tail_alloc(sizeof(*dm_arg) - sizeof(dm_arg->data));
+ struct dm_table_open_test *dm_arg_open1 =
+ tail_alloc(offsetof(struct dm_table_open_test, target1));
+ struct dm_table_open_test *dm_arg_open2 =
+ tail_alloc(offsetof(struct dm_table_open_test, param1));
+ struct dm_table_open_test *dm_arg_open3 =
+ tail_alloc(offsetof(struct dm_table_open_test, target9));
+ struct dm_target_msg_test *dm_arg_msg =
+ tail_alloc(sizeof(*dm_arg_msg));
+
+ int saved_errno;
+ unsigned int i;
+
+
+ /* Incorrect operation */
+ ioctl(-1, _IOW(DM_IOCTL, 0xde, int), dm_arg);
+ printf("ioctl(-1, _IOC(_IOC_WRITE, %#04x, 0xde, %#04zx), %p) = "
+ "-1 EBADF (%m)\n",
+ DM_IOCTL, sizeof(int), dm_arg);
+
+
+ /* DM_VERSION */
+ /* Incorrect pointer */
+ ioctl(-1, DM_VERSION, dm_arg + 1);
+ printf("ioctl(-1, DM_VERSION, %p) = -1 EBADF (%m)\n", dm_arg + 1);
+
+ /* Incorrect data_size */
+ init_s(dm_arg, 0, 0);
+ ioctl(-1, DM_VERSION, &s);
+ printf("ioctl(-1, DM_VERSION, %p) = -1 EBADF (%m)\n", &s);
+
+ /* Incorrect version */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0);
+ dm_arg->version[0] = 0xbadc0ded;
+ dm_arg->version[1] = 0xbadc0dee;
+ dm_arg->version[2] = 0xbadc0def;
+ ioctl(-1, DM_VERSION, dm_arg);
+ printf("ioctl(-1, DM_VERSION, {version=%u.%u.%u, "
+ "/* Unsupported device mapper ABI version */ ...}) = "
+ "-1 EBADF (%m)\n", 0xbadc0ded, 0xbadc0dee, 0xbadc0def);
+
+ /* Incorrect data_size */
+ init_s(dm_arg, 14, 64);
+ ioctl(-1, DM_VERSION, dm_arg);
+ printf("ioctl(-1, DM_VERSION, {version=4.1.2, data_size=14, "
+ "/* Incorrect data_size */ ...}) = -1 EBADF (%m)\n");
+
+ /* Unterminated name/uuid */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0);
+ strncpy(dm_arg->name, str129, sizeof(dm_arg->name));
+ strncpy(dm_arg->uuid, str129, sizeof(dm_arg->uuid));
+ ioctl(-1, DM_VERSION, dm_arg);
+ printf("ioctl(-1, DM_VERSION, {version=4.1.2, data_size=%zu, "
+ "dev=makedev(18, 52), name=\"%.127s\", uuid=\"%.128s\", "
+ "flags=0}) = -1 EBADF (%m)\n",
+ sizeof(*dm_arg) - sizeof(dm_arg->data), str129, str129);
+
+ /* Normal call */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0);
+ ioctl(-1, DM_VERSION, dm_arg);
+ printf("ioctl(-1, DM_VERSION, "
+ "{version=4.1.2, data_size=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", flags=0}) = "
+ "-1 EBADF (%m)\n", sizeof(*dm_arg) - sizeof(dm_arg->data));
+
+ /* Zero dev, name, uuid */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0);
+ dm_arg->data_size = 0xfacefeed;
+ dm_arg->dev = 0;
+ dm_arg->name[0] = '\0';
+ dm_arg->uuid[0] = '\0';
+ ioctl(-1, DM_VERSION, dm_arg);
+ printf("ioctl(-1, DM_VERSION, "
+ "{version=4.1.2, data_size=%u, flags=0}) = "
+ "-1 EBADF (%m)\n", 0xfacefeed);
+
+ /* Flag */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0);
+ dm_arg->flags = 0xffffffff;
+ ioctl(-1, DM_VERSION, dm_arg);
+ printf("ioctl(-1, DM_VERSION, "
+ "{version=4.1.2, data_size=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", flags="
+ "DM_READONLY_FLAG|DM_SUSPEND_FLAG|DM_EXISTS_FLAG|"
+ "DM_PERSISTENT_DEV_FLAG|DM_STATUS_TABLE_FLAG|"
+ "DM_ACTIVE_PRESENT_FLAG|DM_INACTIVE_PRESENT_FLAG|"
+ "DM_BUFFER_FULL_FLAG|DM_SKIP_BDGET_FLAG|DM_SKIP_LOCKFS_FLAG|"
+ "DM_NOFLUSH_FLAG|DM_QUERY_INACTIVE_TABLE_FLAG|"
+ "DM_UEVENT_GENERATED_FLAG|DM_UUID_FLAG|DM_SECURE_DATA_FLAG|"
+ "DM_DATA_OUT_FLAG|DM_DEFERRED_REMOVE|DM_INTERNAL_SUSPEND_FLAG|"
+ "0xfff80080}) = -1 EBADF (%m)\n",
+ sizeof(*dm_arg) - sizeof(dm_arg->data));
+
+ /* Normal call */
init_s(&s.ioc, sizeof(s.ioc), 0);
ioctl(-1, DM_VERSION, &s);
printf("ioctl(-1, DM_VERSION, "
@@ -48,6 +236,61 @@ main(void)
"dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", flags=0}) = "
"-1 EBADF (%m)\n", sizeof(s.ioc));
+
+ /* DM_REMOVE_ALL */
+ /* DM_LIST_DEVICES */
+ /* DM_LIST_VERSIONS */
+ for (i = 0; i < ARRAY_SIZE(dummy_check_cmds_nodev); i++) {
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0);
+ ioctl(-1, dummy_check_cmds_nodev[i].arg, dm_arg);
+ printf("ioctl(-1, %s, {version=4.1.2, data_size=%zu%s, "
+ "flags=0}) = -1 EBADF (%m)\n",
+ dummy_check_cmds_nodev[i].str,
+ sizeof(*dm_arg) - sizeof(dm_arg->data),
+ dummy_check_cmds_nodev[i].has_params ?
+ ", data_start=0" : "");
+ }
+
+
+ /* DM_DEV_CREATE */
+ /* DM_DEV_REMOVE */
+ /* DM_DEV_STATUS */
+ /* DM_DEV_WAIT */
+ /* DM_TABLE_CLEAR */
+ /* DM_TABLE_DEPS */
+ /* DM_TABLE_STATUS */
+ for (i = 0; i < ARRAY_SIZE(dummy_check_cmds); i++) {
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0);
+ ioctl(-1, dummy_check_cmds[i].arg, dm_arg);
+ printf("ioctl(-1, %s, {version=4.1.2, data_size=%zu%s, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\"%s, "
+ "flags=0}) = -1 EBADF (%m)\n", dummy_check_cmds[i].str,
+ sizeof(*dm_arg) - sizeof(dm_arg->data),
+ dummy_check_cmds[i].has_params ? ", data_start=0" : "",
+ dummy_check_cmds[i].has_event_nr ? ", event_nr=0" : "");
+ }
+
+
+ /* DM_DEV_SUSPEND */
+ init_s(&s.ioc, sizeof(s.ioc), 0);
+ s.ioc.flags = DM_SUSPEND_FLAG;
+ s.ioc.event_nr = 0xbadc0ded;
+ ioctl(-1, DM_DEV_SUSPEND, &s);
+ printf("ioctl(-1, DM_DEV_SUSPEND, "
+ "{version=4.1.2, data_size=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", "
+ "flags=DM_SUSPEND_FLAG}) = -1 EBADF (%m)\n", sizeof(s.ioc));
+
+ init_s(&s.ioc, sizeof(s.ioc), 0);
+ s.ioc.event_nr = 0xbadc0ded;
+ ioctl(-1, DM_DEV_SUSPEND, &s);
+ printf("ioctl(-1, DM_DEV_SUSPEND, "
+ "{version=4.1.2, data_size=%zu, dev=makedev(18, 52), "
+ "name=\"nnn\", uuid=\"uuu\", event_nr=3134983661, "
+ "flags=0}) = -1 EBADF (%m)\n", sizeof(s.ioc));
+
+
+ /* DM_TABLE_LOAD */
init_s(&s.ioc, sizeof(s), offsetof(struct s, u));
s.ioc.target_count = 1;
s.u.ts.target_spec.sector_start = 0x10;
@@ -64,6 +307,164 @@ main(void)
"length=32, target_type=\"tgt\", string=\"tparams\"}}) = "
"-1 EBADF (%m)\n", s.ioc.data_size, s.ioc.data_start);
+ /* No targets */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data),
+ sizeof(*dm_arg) - sizeof(dm_arg->data));
+ dm_arg->data_size = sizeof(*dm_arg);
+ dm_arg->target_count = 0;
+ ioctl(-1, DM_TABLE_LOAD, dm_arg);
+ printf("ioctl(-1, DM_TABLE_LOAD, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", "
+ "target_count=0, flags=0}) = -1 EBADF (%m)\n", sizeof(*dm_arg),
+ sizeof(*dm_arg) - sizeof(dm_arg->data));
+
+ /* Invalid data_start */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0xfffffff8);
+ dm_arg->data_size = sizeof(*dm_arg);
+ dm_arg->target_count = 1234;
+ ioctl(-1, DM_TABLE_LOAD, dm_arg);
+ printf("ioctl(-1, DM_TABLE_LOAD, "
+ "{version=4.1.2, data_size=%zu, data_start=%u, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", "
+ "target_count=1234, flags=0, "
+ "/* misplaced struct dm_target_spec */ ...}) = -1 EBADF (%m)\n",
+ sizeof(*dm_arg), 0xfffffff8);
+
+ /* Inaccessible pointer */
+ init_s(&dm_arg_open1->ioc, offsetof(struct dm_table_open_test, target1),
+ offsetof(struct dm_table_open_test, target1));
+ dm_arg_open1->ioc.data_size = sizeof(*dm_arg_open1);
+ dm_arg_open1->ioc.target_count = 0xdeaddea1;
+ ioctl(-1, DM_TABLE_LOAD, dm_arg_open1);
+ printf("ioctl(-1, DM_TABLE_LOAD, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", "
+ "target_count=3735936673, flags=0, %p}) = -1 EBADF (%m)\n",
+ sizeof(*dm_arg_open1),
+ offsetof(struct dm_table_open_test, target1),
+ (char *) dm_arg_open1 +
+ offsetof(struct dm_table_open_test, target1));
+
+ /* Inaccessible string */
+ init_s(&dm_arg_open2->ioc, offsetof(struct dm_table_open_test, param1),
+ offsetof(struct dm_table_open_test, target1));
+ dm_arg_open2->ioc.data_size = sizeof(*dm_arg_open2);
+ dm_arg_open2->ioc.target_count = 2;
+ init_dm_target_spec(&dm_arg_open2->target1, 7);
+ dm_arg_open2->target1.next =
+ offsetof(struct dm_table_open_test, target3) -
+ offsetof(struct dm_table_open_test, target1);
+ ioctl(-1, DM_TABLE_LOAD, dm_arg_open2);
+ saved_errno = errno;
+ printf("ioctl(-1, DM_TABLE_LOAD, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", "
+ "target_count=2, flags=0, ",
+ sizeof(*dm_arg_open2),
+ offsetof(struct dm_table_open_test, target1));
+ print_dm_target_spec(&dm_arg_open2->target1, 7);
+ errno = saved_errno;
+ printf("%p}, %p}) = -1 EBADF (%m)\n",
+ (char *) dm_arg_open2 +
+ offsetof(struct dm_table_open_test, param1),
+ (char *) dm_arg_open2 +
+ offsetof(struct dm_table_open_test, target3));
+
+ /* Incorrect next */
+ init_s(&dm_arg_open3->ioc, offsetof(struct dm_table_open_test, target5),
+ offsetof(struct dm_table_open_test, target0));
+ dm_arg_open3->ioc.target_count = 4;
+
+ init_dm_target_spec(&dm_arg_open3->target0, 9);
+ dm_arg_open3->target0.next =
+ offsetof(struct dm_table_open_test, target1) -
+ offsetof(struct dm_table_open_test, target0);
+ dm_arg_open3->param0[0] = '\0';
+
+ init_dm_target_spec(&dm_arg_open3->target1, 15);
+ dm_arg_open3->target1.next =
+ offsetof(struct dm_table_open_test, target3) -
+ offsetof(struct dm_table_open_test, target1);
+ dm_arg_open3->param1[0] = '\377';
+ dm_arg_open3->param1[1] = '\0';
+
+ init_dm_target_spec(&dm_arg_open3->target3, 42);
+ dm_arg_open3->target3.next = 0xdeadbeef;
+ dm_arg_open3->param3[0] = '\1';
+ dm_arg_open3->param3[1] = '\2';
+ dm_arg_open3->param1[2] = '\0';
+
+ ioctl(-1, DM_TABLE_LOAD, dm_arg_open3);
+ saved_errno = errno;
+ printf("ioctl(-1, DM_TABLE_LOAD, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", "
+ "target_count=4, flags=0, ",
+ offsetof(struct dm_table_open_test, target5),
+ offsetof(struct dm_table_open_test, target0));
+ print_dm_target_spec(&dm_arg_open3->target0, 9);
+ printf("\"\"}, ");
+ print_dm_target_spec(&dm_arg_open3->target1, 15);
+ printf("\"\\377\"}, ");
+ print_dm_target_spec(&dm_arg_open3->target1, 42);
+ errno = saved_errno;
+ printf("\"\\1\\2\"}, /* misplaced struct dm_target_spec */ ...}) = "
+ "-1 EBADF (%m)\n");
+
+ #define FILL_DM_TARGET(id, id_next) \
+ do { \
+ init_dm_target_spec(&dm_arg_open3->target##id, id); \
+ dm_arg_open3->target##id.next = \
+ offsetof(struct dm_table_open_test, \
+ target##id_next) - \
+ offsetof(struct dm_table_open_test, \
+ target##id); \
+ strncpy(dm_arg_open3->param##id, str129 + id * 2, id); \
+ dm_arg_open3->param##id[id] = '\0'; \
+ } while (0)
+ #define PRINT_DM_TARGET(id) \
+ do { \
+ print_dm_target_spec(&dm_arg_open3->target##id, id); \
+ printf("\"%.*s\"}, ", id, str129 + id * 2); \
+ } while (0)
+
+ /* max_strlen limit */
+ init_s(&dm_arg_open3->ioc, offsetof(struct dm_table_open_test, target9),
+ offsetof(struct dm_table_open_test, target0));
+ dm_arg_open3->ioc.data_size = sizeof(*dm_arg_open3);
+ dm_arg_open3->ioc.target_count = 0xbadc0ded;
+ FILL_DM_TARGET(0, 1);
+ FILL_DM_TARGET(1, 2);
+ FILL_DM_TARGET(2, 3);
+ FILL_DM_TARGET(3, 4);
+ FILL_DM_TARGET(4, 5);
+ FILL_DM_TARGET(5, 6);
+ FILL_DM_TARGET(6, 7);
+ FILL_DM_TARGET(7, 8);
+ FILL_DM_TARGET(8, 9);
+ ioctl(-1, DM_TABLE_LOAD, dm_arg_open3);
+ saved_errno = errno;
+ printf("ioctl(-1, DM_TABLE_LOAD, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", "
+ "target_count=3134983661, flags=0, ",
+ sizeof(*dm_arg_open3),
+ offsetof(struct dm_table_open_test, target0));
+ PRINT_DM_TARGET(0);
+ PRINT_DM_TARGET(1);
+ PRINT_DM_TARGET(2);
+ PRINT_DM_TARGET(3);
+ PRINT_DM_TARGET(4);
+ PRINT_DM_TARGET(5);
+ PRINT_DM_TARGET(6);
+ PRINT_DM_TARGET(7);
+ PRINT_DM_TARGET(8);
+ errno = saved_errno;
+ printf("...}) = -1 EBADF (%m)\n");
+
+
+ /* DM_TARGET_MSG */
init_s(&s.ioc, sizeof(s), offsetof(struct s, u));
s.u.tm.target_msg.sector = 0x1234;
strcpy(s.u.string + offsetof(struct dm_target_msg, message),
@@ -75,6 +476,71 @@ main(void)
"{sector=4660, message=\"long targ\"...}}) = -1 EBADF (%m)\n",
s.ioc.data_size, s.ioc.data_start);
+ /* Invalid data_start */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data),
+ sizeof(*dm_arg) - sizeof(dm_arg->data));
+ dm_arg->data_size = sizeof(*dm_arg);
+ ioctl(-1, DM_TARGET_MSG, dm_arg);
+ printf("ioctl(-1, DM_TARGET_MSG, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", flags=0, "
+ "/* misplaced struct dm_target_msg */}) = -1 EBADF (%m)\n",
+ sizeof(*dm_arg), sizeof(*dm_arg) - sizeof(dm_arg->data));
+
+ /* Invalid data_start */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0xffffffff);
+ dm_arg->data_size = sizeof(*dm_arg);
+ ioctl(-1, DM_TARGET_MSG, dm_arg);
+ printf("ioctl(-1, DM_TARGET_MSG, "
+ "{version=4.1.2, data_size=%zu, data_start=%u, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", flags=0, "
+ "/* misplaced struct dm_target_msg */}) = -1 EBADF (%m)\n",
+ sizeof(*dm_arg), 0xffffffff);
+
+ /* Inaccessible pointer */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data), 0);
+ dm_arg->data_size = sizeof(*dm_arg) + sizeof(struct dm_target_msg);
+ dm_arg->data_start = sizeof(*dm_arg);
+ ioctl(-1, DM_TARGET_MSG, dm_arg);
+ printf("ioctl(-1, DM_TARGET_MSG, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", flags=0, %p}) "
+ "= -1 EBADF (%m)\n",
+ sizeof(*dm_arg) + sizeof(struct dm_target_msg),
+ sizeof(*dm_arg), (char *) dm_arg + sizeof(*dm_arg));
+
+ /* Inaccessible string */
+ init_s(&dm_arg_msg->ioc, sizeof(*dm_arg_msg),
+ offsetof(struct dm_target_msg_test, msg));
+ dm_arg_msg->ioc.data_size = sizeof(*dm_arg_msg) + 1;
+ dm_arg_msg->msg.sector = (__u64) 0xdeadbeeffacef157ULL;
+ ioctl(-1, DM_TARGET_MSG, dm_arg_msg);
+ printf("ioctl(-1, DM_TARGET_MSG, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", flags=0, "
+ "{sector=%" PRI__u64 ", message=%p}}) "
+ "= -1 EBADF (%m)\n",
+ sizeof(*dm_arg_msg) + 1,
+ offsetof(struct dm_target_msg_test, msg),
+ (__u64) 0xdeadbeeffacef157ULL,
+ (char *) dm_arg_msg +
+ offsetof(struct dm_target_msg_test, msg.message));
+
+ /* Zero-sied string */
+ init_s(&dm_arg_msg->ioc, sizeof(*dm_arg_msg),
+ offsetof(struct dm_target_msg_test, msg));
+ dm_arg_msg->msg.sector = (__u64) 0xdeadbeeffacef157ULL;
+ ioctl(-1, DM_TARGET_MSG, dm_arg_msg);
+ printf("ioctl(-1, DM_TARGET_MSG, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", flags=0, "
+ "{sector=%" PRI__u64 ", message=\"\"}}) "
+ "= -1 EBADF (%m)\n",
+ sizeof(*dm_arg_msg), offsetof(struct dm_target_msg_test, msg),
+ (__u64) 0xdeadbeeffacef157ULL);
+
+
+ /* DM_DEV_SET_GEOMETRY */
init_s(&s.ioc, sizeof(s), offsetof(struct s, u));
strcpy(s.u.string, "10 20 30 40");
ioctl(-1, DM_DEV_SET_GEOMETRY, &s);
@@ -84,6 +550,43 @@ main(void)
"string=\"10 20 30 \"...}) = -1 EBADF (%m)\n",
s.ioc.data_size, s.ioc.data_start);
+
+ /* DM_DEV_RENAME */
+ /* Inaccessible data */
+ init_s(dm_arg, sizeof(*dm_arg) - sizeof(dm_arg->data),
+ sizeof(*dm_arg) - sizeof(dm_arg->data));
+ dm_arg->data_size = sizeof(*dm_arg);
+ ioctl(-1, DM_DEV_RENAME, dm_arg);
+ printf("ioctl(-1, DM_DEV_RENAME, "
+ "{version=4.1.2, data_size=%zu, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", event_nr=0, "
+ "flags=0, string=%p}) = -1 EBADF (%m)\n",
+ sizeof(*dm_arg), sizeof(*dm_arg) - sizeof(dm_arg->data),
+ (char *) dm_arg + sizeof(*dm_arg) - sizeof(dm_arg->data));
+
+ /* Incorrect data_start data */
+ init_s(&s.ioc, sizeof(s), offsetof(struct s, u));
+ s.ioc.data_start = 0xdeadbeef;
+ ioctl(-1, DM_DEV_RENAME, &s);
+ printf("ioctl(-1, DM_DEV_RENAME, "
+ "{version=4.1.2, data_size=%u, data_start=3735928559, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", event_nr=0, "
+ "flags=0, /* misplaced string */}) = -1 EBADF (%m)\n",
+ s.ioc.data_size);
+
+ /* Strange but still valid data_start */
+ init_s(&s.ioc, sizeof(s), offsetof(struct s, u));
+ /* Curiously, this is a valid structure */
+ s.ioc.data_start = offsetof(struct dm_ioctl, name) + 1;
+ ioctl(-1, DM_DEV_RENAME, &s);
+ printf("ioctl(-1, DM_DEV_RENAME, "
+ "{version=4.1.2, data_size=%u, data_start=%zu, "
+ "dev=makedev(18, 52), name=\"nnn\", uuid=\"uuu\", event_nr=0, "
+ "flags=0, string=\"nn\"}) = -1 EBADF (%m)\n",
+ s.ioc.data_size,
+ offsetof(struct dm_ioctl, name) + 1);
+
+ /* Correct data */
init_s(&s.ioc, sizeof(s), offsetof(struct s, u));
strcpy(s.u.string, "new long name");
ioctl(-1, DM_DEV_RENAME, &s);
@@ -93,6 +596,8 @@ main(void)
"flags=0, string=\"new long \"...}) = -1 EBADF (%m)\n",
s.ioc.data_size, s.ioc.data_start);
+
+ /* DM_TABLE_LOAD */
init_s(&s.ioc, sizeof(s), offsetof(struct s, u));
s.ioc.target_count = -1U;
ioctl(-1, DM_TABLE_LOAD, &s);
--
1.7.10.4
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