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-rw-r--r--tests/virtio-9p-test.c294
1 files changed, 253 insertions, 41 deletions
diff --git a/tests/virtio-9p-test.c b/tests/virtio-9p-test.c
index 00f00f7246..54edcb9955 100644
--- a/tests/virtio-9p-test.c
+++ b/tests/virtio-9p-test.c
@@ -17,6 +17,7 @@
#include "standard-headers/linux/virtio_ids.h"
#include "standard-headers/linux/virtio_pci.h"
#include "hw/9pfs/9p.h"
+#include "hw/9pfs/9p-synth.h"
#define QVIRTIO_9P_TIMEOUT_US (10 * 1000 * 1000)
@@ -26,24 +27,19 @@ typedef struct {
QVirtioDevice *dev;
QOSState *qs;
QVirtQueue *vq;
- char *test_share;
- uint16_t p9_req_tag;
} QVirtIO9P;
static QVirtIO9P *qvirtio_9p_start(const char *driver)
{
const char *arch = qtest_get_arch();
- const char *cmd = "-fsdev local,id=fsdev0,security_model=none,path=%s "
+ const char *cmd = "-fsdev synth,id=fsdev0 "
"-device %s,fsdev=fsdev0,mount_tag=%s";
QVirtIO9P *v9p = g_new0(QVirtIO9P, 1);
- v9p->test_share = g_strdup("/tmp/qtest.XXXXXX");
- g_assert_nonnull(mkdtemp(v9p->test_share));
-
if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
- v9p->qs = qtest_pc_boot(cmd, v9p->test_share, driver, mount_tag);
+ v9p->qs = qtest_pc_boot(cmd, driver, mount_tag);
} else if (strcmp(arch, "ppc64") == 0) {
- v9p->qs = qtest_spapr_boot(cmd, v9p->test_share, driver, mount_tag);
+ v9p->qs = qtest_spapr_boot(cmd, driver, mount_tag);
} else {
g_printerr("virtio-9p tests are only available on x86 or ppc64\n");
exit(EXIT_FAILURE);
@@ -55,8 +51,6 @@ static QVirtIO9P *qvirtio_9p_start(const char *driver)
static void qvirtio_9p_stop(QVirtIO9P *v9p)
{
qtest_shutdown(v9p->qs);
- rmdir(v9p->test_share);
- g_free(v9p->test_share);
g_free(v9p);
}
@@ -156,6 +150,13 @@ static void v9fs_uint32_write(P9Req *req, uint32_t val)
v9fs_memwrite(req, &le_val, 4);
}
+static void v9fs_uint64_write(P9Req *req, uint64_t val)
+{
+ uint64_t le_val = cpu_to_le64(val);
+
+ v9fs_memwrite(req, &le_val, 8);
+}
+
static void v9fs_uint32_read(P9Req *req, uint32_t *val)
{
v9fs_memread(req, val, 4);
@@ -167,7 +168,7 @@ static uint16_t v9fs_string_size(const char *string)
{
size_t len = strlen(string);
- g_assert_cmpint(len, <=, UINT16_MAX);
+ g_assert_cmpint(len, <=, UINT16_MAX - 2);
return 2 + len;
}
@@ -208,17 +209,20 @@ static P9Req *v9fs_req_init(QVirtIO9P *v9p, uint32_t size, uint8_t id,
uint16_t tag)
{
P9Req *req = g_new0(P9Req, 1);
- uint32_t t_size = 7 + size; /* 9P header has well-known size of 7 bytes */
+ uint32_t total_size = 7; /* 9P header has well-known size of 7 bytes */
P9Hdr hdr = {
- .size = cpu_to_le32(t_size),
.id = id,
.tag = cpu_to_le16(tag)
};
- g_assert_cmpint(t_size, <=, P9_MAX_SIZE);
+ g_assert_cmpint(total_size, <=, UINT32_MAX - size);
+ total_size += size;
+ hdr.size = cpu_to_le32(total_size);
+
+ g_assert_cmpint(total_size, <=, P9_MAX_SIZE);
req->v9p = v9p;
- req->t_size = t_size;
+ req->t_size = total_size;
req->t_msg = guest_alloc(v9p->qs->alloc, req->t_size);
v9fs_memwrite(req, &hdr, 7);
req->tag = tag;
@@ -244,16 +248,23 @@ static const char *rmessage_name(uint8_t id)
id == P9_RVERSION ? "RVERSION" :
id == P9_RATTACH ? "RATTACH" :
id == P9_RWALK ? "RWALK" :
+ id == P9_RLOPEN ? "RLOPEN" :
+ id == P9_RWRITE ? "RWRITE" :
+ id == P9_RFLUSH ? "RFLUSH" :
"<unknown>";
}
-static void v9fs_req_recv(P9Req *req, uint8_t id)
+static void v9fs_req_wait_for_reply(P9Req *req, uint32_t *len)
{
QVirtIO9P *v9p = req->v9p;
- P9Hdr hdr;
- qvirtio_wait_used_elem(v9p->dev, v9p->vq, req->free_head,
+ qvirtio_wait_used_elem(v9p->dev, v9p->vq, req->free_head, len,
QVIRTIO_9P_TIMEOUT_US);
+}
+
+static void v9fs_req_recv(P9Req *req, uint8_t id)
+{
+ P9Hdr hdr;
v9fs_memread(req, &hdr, 7);
hdr.size = ldl_le_p(&hdr.size);
@@ -294,10 +305,16 @@ static void v9fs_rlerror(P9Req *req, uint32_t *err)
}
/* size[4] Tversion tag[2] msize[4] version[s] */
-static P9Req *v9fs_tversion(QVirtIO9P *v9p, uint32_t msize, const char *version)
+static P9Req *v9fs_tversion(QVirtIO9P *v9p, uint32_t msize, const char *version,
+ uint16_t tag)
{
- P9Req *req = v9fs_req_init(v9p, 4 + v9fs_string_size(version), P9_TVERSION,
- P9_NOTAG);
+ P9Req *req;
+ uint32_t body_size = 4;
+ uint16_t string_size = v9fs_string_size(version);
+
+ g_assert_cmpint(body_size, <=, UINT32_MAX - string_size);
+ body_size += string_size;
+ req = v9fs_req_init(v9p, body_size, P9_TVERSION, tag);
v9fs_uint32_write(req, msize);
v9fs_string_write(req, version);
@@ -323,12 +340,12 @@ static void v9fs_rversion(P9Req *req, uint16_t *len, char **version)
}
/* size[4] Tattach tag[2] fid[4] afid[4] uname[s] aname[s] n_uname[4] */
-static P9Req *v9fs_tattach(QVirtIO9P *v9p, uint32_t fid, uint32_t n_uname)
+static P9Req *v9fs_tattach(QVirtIO9P *v9p, uint32_t fid, uint32_t n_uname,
+ uint16_t tag)
{
const char *uname = ""; /* ignored by QEMU */
const char *aname = ""; /* ignored by QEMU */
- P9Req *req = v9fs_req_init(v9p, 4 + 4 + 2 + 2 + 4, P9_TATTACH,
- ++(v9p->p9_req_tag));
+ P9Req *req = v9fs_req_init(v9p, 4 + 4 + 2 + 2 + 4, P9_TATTACH, tag);
v9fs_uint32_write(req, fid);
v9fs_uint32_write(req, P9_NOFID);
@@ -353,16 +370,19 @@ static void v9fs_rattach(P9Req *req, v9fs_qid *qid)
/* size[4] Twalk tag[2] fid[4] newfid[4] nwname[2] nwname*(wname[s]) */
static P9Req *v9fs_twalk(QVirtIO9P *v9p, uint32_t fid, uint32_t newfid,
- uint16_t nwname, char *const wnames[])
+ uint16_t nwname, char *const wnames[], uint16_t tag)
{
P9Req *req;
int i;
- uint32_t size = 4 + 4 + 2;
+ uint32_t body_size = 4 + 4 + 2;
for (i = 0; i < nwname; i++) {
- size += v9fs_string_size(wnames[i]);
+ uint16_t wname_size = v9fs_string_size(wnames[i]);
+
+ g_assert_cmpint(body_size, <=, UINT32_MAX - wname_size);
+ body_size += wname_size;
}
- req = v9fs_req_init(v9p, size, P9_TWALK, ++(v9p->p9_req_tag));
+ req = v9fs_req_init(v9p, body_size, P9_TWALK, tag);
v9fs_uint32_write(req, fid);
v9fs_uint32_write(req, newfid);
v9fs_uint16_write(req, nwname);
@@ -390,6 +410,80 @@ static void v9fs_rwalk(P9Req *req, uint16_t *nwqid, v9fs_qid **wqid)
v9fs_req_free(req);
}
+/* size[4] Tlopen tag[2] fid[4] flags[4] */
+static P9Req *v9fs_tlopen(QVirtIO9P *v9p, uint32_t fid, uint32_t flags,
+ uint16_t tag)
+{
+ P9Req *req;
+
+ req = v9fs_req_init(v9p, 4 + 4, P9_TLOPEN, tag);
+ v9fs_uint32_write(req, fid);
+ v9fs_uint32_write(req, flags);
+ v9fs_req_send(req);
+ return req;
+}
+
+/* size[4] Rlopen tag[2] qid[13] iounit[4] */
+static void v9fs_rlopen(P9Req *req, v9fs_qid *qid, uint32_t *iounit)
+{
+ v9fs_req_recv(req, P9_RLOPEN);
+ if (qid) {
+ v9fs_memread(req, qid, 13);
+ } else {
+ v9fs_memskip(req, 13);
+ }
+ if (iounit) {
+ v9fs_uint32_read(req, iounit);
+ }
+ v9fs_req_free(req);
+}
+
+/* size[4] Twrite tag[2] fid[4] offset[8] count[4] data[count] */
+static P9Req *v9fs_twrite(QVirtIO9P *v9p, uint32_t fid, uint64_t offset,
+ uint32_t count, const void *data, uint16_t tag)
+{
+ P9Req *req;
+ uint32_t body_size = 4 + 8 + 4;
+
+ g_assert_cmpint(body_size, <=, UINT32_MAX - count);
+ body_size += count;
+ req = v9fs_req_init(v9p, body_size, P9_TWRITE, tag);
+ v9fs_uint32_write(req, fid);
+ v9fs_uint64_write(req, offset);
+ v9fs_uint32_write(req, count);
+ v9fs_memwrite(req, data, count);
+ v9fs_req_send(req);
+ return req;
+}
+
+/* size[4] Rwrite tag[2] count[4] */
+static void v9fs_rwrite(P9Req *req, uint32_t *count)
+{
+ v9fs_req_recv(req, P9_RWRITE);
+ if (count) {
+ v9fs_uint32_read(req, count);
+ }
+ v9fs_req_free(req);
+}
+
+/* size[4] Tflush tag[2] oldtag[2] */
+static P9Req *v9fs_tflush(QVirtIO9P *v9p, uint16_t oldtag, uint16_t tag)
+{
+ P9Req *req;
+
+ req = v9fs_req_init(v9p, 2, P9_TFLUSH, tag);
+ v9fs_uint32_write(req, oldtag);
+ v9fs_req_send(req);
+ return req;
+}
+
+/* size[4] Rflush tag[2] */
+static void v9fs_rflush(P9Req *req)
+{
+ v9fs_req_recv(req, P9_RFLUSH);
+ v9fs_req_free(req);
+}
+
static void fs_version(QVirtIO9P *v9p)
{
const char *version = "9P2000.L";
@@ -397,7 +491,8 @@ static void fs_version(QVirtIO9P *v9p)
char *server_version;
P9Req *req;
- req = v9fs_tversion(v9p, P9_MAX_SIZE, version);
+ req = v9fs_tversion(v9p, P9_MAX_SIZE, version, P9_NOTAG);
+ v9fs_req_wait_for_reply(req, NULL);
v9fs_rversion(req, &server_len, &server_version);
g_assert_cmpmem(server_version, server_len, version, strlen(version));
@@ -410,34 +505,31 @@ static void fs_attach(QVirtIO9P *v9p)
P9Req *req;
fs_version(v9p);
- req = v9fs_tattach(v9p, 0, getuid());
+ req = v9fs_tattach(v9p, 0, getuid(), 0);
+ v9fs_req_wait_for_reply(req, NULL);
v9fs_rattach(req, NULL);
}
static void fs_walk(QVirtIO9P *v9p)
{
- char *wnames[P9_MAXWELEM], *paths[P9_MAXWELEM];
- char *last_path = v9p->test_share;
+ char *wnames[P9_MAXWELEM];
uint16_t nwqid;
v9fs_qid *wqid;
int i;
P9Req *req;
for (i = 0; i < P9_MAXWELEM; i++) {
- wnames[i] = g_strdup_printf("%s%d", __func__, i);
- last_path = paths[i] = g_strdup_printf("%s/%s", last_path, wnames[i]);
- g_assert(!mkdir(paths[i], 0700));
+ wnames[i] = g_strdup_printf(QTEST_V9FS_SYNTH_WALK_FILE, i);
}
fs_attach(v9p);
- req = v9fs_twalk(v9p, 0, 1, P9_MAXWELEM, wnames);
+ req = v9fs_twalk(v9p, 0, 1, P9_MAXWELEM, wnames, 0);
+ v9fs_req_wait_for_reply(req, NULL);
v9fs_rwalk(req, &nwqid, &wqid);
g_assert_cmpint(nwqid, ==, P9_MAXWELEM);
for (i = 0; i < P9_MAXWELEM; i++) {
- rmdir(paths[P9_MAXWELEM - i - 1]);
- g_free(paths[P9_MAXWELEM - i - 1]);
g_free(wnames[i]);
}
@@ -451,7 +543,8 @@ static void fs_walk_no_slash(QVirtIO9P *v9p)
uint32_t err;
fs_attach(v9p);
- req = v9fs_twalk(v9p, 0, 1, 1, wnames);
+ req = v9fs_twalk(v9p, 0, 1, 1, wnames, 0);
+ v9fs_req_wait_for_reply(req, NULL);
v9fs_rlerror(req, &err);
g_assert_cmpint(err, ==, ENOENT);
@@ -466,10 +559,12 @@ static void fs_walk_dotdot(QVirtIO9P *v9p)
P9Req *req;
fs_version(v9p);
- req = v9fs_tattach(v9p, 0, getuid());
+ req = v9fs_tattach(v9p, 0, getuid(), 0);
+ v9fs_req_wait_for_reply(req, NULL);
v9fs_rattach(req, &root_qid);
- req = v9fs_twalk(v9p, 0, 1, 1, wnames);
+ req = v9fs_twalk(v9p, 0, 1, 1, wnames, 0);
+ v9fs_req_wait_for_reply(req, NULL);
v9fs_rwalk(req, NULL, &wqid); /* We now we'll get one qid */
g_assert_cmpmem(&root_qid, 13, wqid[0], 13);
@@ -478,6 +573,119 @@ static void fs_walk_dotdot(QVirtIO9P *v9p)
g_free(wnames[0]);
}
+static void fs_lopen(QVirtIO9P *v9p)
+{
+ char *const wnames[] = { g_strdup(QTEST_V9FS_SYNTH_LOPEN_FILE) };
+ P9Req *req;
+
+ fs_attach(v9p);
+ req = v9fs_twalk(v9p, 0, 1, 1, wnames, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rwalk(req, NULL, NULL);
+
+ req = v9fs_tlopen(v9p, 1, O_WRONLY, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rlopen(req, NULL, NULL);
+
+ g_free(wnames[0]);
+}
+
+static void fs_write(QVirtIO9P *v9p)
+{
+ static const uint32_t write_count = P9_MAX_SIZE / 2;
+ char *const wnames[] = { g_strdup(QTEST_V9FS_SYNTH_WRITE_FILE) };
+ char *buf = g_malloc0(write_count);
+ uint32_t count;
+ P9Req *req;
+
+ fs_attach(v9p);
+ req = v9fs_twalk(v9p, 0, 1, 1, wnames, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rwalk(req, NULL, NULL);
+
+ req = v9fs_tlopen(v9p, 1, O_WRONLY, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rlopen(req, NULL, NULL);
+
+ req = v9fs_twrite(v9p, 1, 0, write_count, buf, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rwrite(req, &count);
+ g_assert_cmpint(count, ==, write_count);
+
+ g_free(buf);
+ g_free(wnames[0]);
+}
+
+static void fs_flush_success(QVirtIO9P *v9p)
+{
+ char *const wnames[] = { g_strdup(QTEST_V9FS_SYNTH_FLUSH_FILE) };
+ P9Req *req, *flush_req;
+ uint32_t reply_len;
+ uint8_t should_block;
+
+ fs_attach(v9p);
+ req = v9fs_twalk(v9p, 0, 1, 1, wnames, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rwalk(req, NULL, NULL);
+
+ req = v9fs_tlopen(v9p, 1, O_WRONLY, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rlopen(req, NULL, NULL);
+
+ /* This will cause the 9p server to try to write data to the backend,
+ * until the write request gets cancelled.
+ */
+ should_block = 1;
+ req = v9fs_twrite(v9p, 1, 0, sizeof(should_block), &should_block, 0);
+
+ flush_req = v9fs_tflush(v9p, req->tag, 1);
+
+ /* The write request is supposed to be flushed: the server should just
+ * mark the write request as used and reply to the flush request.
+ */
+ v9fs_req_wait_for_reply(req, &reply_len);
+ g_assert_cmpint(reply_len, ==, 0);
+ v9fs_req_free(req);
+ v9fs_rflush(flush_req);
+
+ g_free(wnames[0]);
+}
+
+static void fs_flush_ignored(QVirtIO9P *v9p)
+{
+ char *const wnames[] = { g_strdup(QTEST_V9FS_SYNTH_FLUSH_FILE) };
+ P9Req *req, *flush_req;
+ uint32_t count;
+ uint8_t should_block;
+
+ fs_attach(v9p);
+ req = v9fs_twalk(v9p, 0, 1, 1, wnames, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rwalk(req, NULL, NULL);
+
+ req = v9fs_tlopen(v9p, 1, O_WRONLY, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rlopen(req, NULL, NULL);
+
+ /* This will cause the write request to complete right away, before it
+ * could be actually cancelled.
+ */
+ should_block = 0;
+ req = v9fs_twrite(v9p, 1, 0, sizeof(should_block), &should_block, 0);
+
+ flush_req = v9fs_tflush(v9p, req->tag, 1);
+
+ /* The write request is supposed to complete. The server should
+ * reply to the write request and the flush request.
+ */
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rwrite(req, &count);
+ g_assert_cmpint(count, ==, sizeof(should_block));
+ v9fs_rflush(flush_req);
+
+ g_free(wnames[0]);
+}
+
typedef void (*v9fs_test_fn)(QVirtIO9P *v9p);
static void v9fs_run_pci_test(gconstpointer data)
@@ -507,6 +715,10 @@ int main(int argc, char **argv)
v9fs_qtest_pci_add("/virtio/9p/pci/fs/walk/no_slash", fs_walk_no_slash);
v9fs_qtest_pci_add("/virtio/9p/pci/fs/walk/dotdot_from_root",
fs_walk_dotdot);
+ v9fs_qtest_pci_add("/virtio/9p/pci/fs/lopen/basic", fs_lopen);
+ v9fs_qtest_pci_add("/virtio/9p/pci/fs/write/basic", fs_write);
+ v9fs_qtest_pci_add("/virtio/9p/pci/fs/flush/success", fs_flush_success);
+ v9fs_qtest_pci_add("/virtio/9p/pci/fs/flush/ignored", fs_flush_ignored);
return g_test_run();
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-10 04:35:37 +0000