+++ /dev/null
-/*
- * QTest testcase for VirtIO 9P
- *
- * Copyright (c) 2014 SUSE LINUX Products GmbH
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "libqtest.h"
-#include "qemu-common.h"
-#include "libqos/libqos-pc.h"
-#include "libqos/libqos-spapr.h"
-#include "libqos/virtio.h"
-#include "libqos/virtio-pci.h"
-#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)
-
-static const char mount_tag[] = "qtest";
-
-typedef struct {
- QVirtioDevice *dev;
- QOSState *qs;
- QVirtQueue *vq;
-} QVirtIO9P;
-
-static QVirtIO9P *qvirtio_9p_start(const char *driver)
-{
- const char *arch = qtest_get_arch();
- const char *cmd = "-fsdev synth,id=fsdev0 "
- "-device %s,fsdev=fsdev0,mount_tag=%s";
- QVirtIO9P *v9p = g_new0(QVirtIO9P, 1);
-
- if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
- v9p->qs = qtest_pc_boot(cmd, driver, mount_tag);
- } else if (strcmp(arch, "ppc64") == 0) {
- 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);
- }
-
- return v9p;
-}
-
-static void qvirtio_9p_stop(QVirtIO9P *v9p)
-{
- qtest_shutdown(v9p->qs);
- g_free(v9p);
-}
-
-static QVirtIO9P *qvirtio_9p_pci_start(void)
-{
- QVirtIO9P *v9p = qvirtio_9p_start("virtio-9p-pci");
- QVirtioPCIDevice *dev = qvirtio_pci_device_find(v9p->qs->pcibus,
- VIRTIO_ID_9P);
- g_assert_nonnull(dev);
- g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_9P);
- v9p->dev = (QVirtioDevice *) dev;
-
- qvirtio_pci_device_enable(dev);
- qvirtio_reset(v9p->dev);
- qvirtio_set_acknowledge(v9p->dev);
- qvirtio_set_driver(v9p->dev);
-
- v9p->vq = qvirtqueue_setup(v9p->dev, v9p->qs->alloc, 0);
-
- qvirtio_set_driver_ok(v9p->dev);
-
- return v9p;
-}
-
-static void qvirtio_9p_pci_stop(QVirtIO9P *v9p)
-{
- qvirtqueue_cleanup(v9p->dev->bus, v9p->vq, v9p->qs->alloc);
- qvirtio_pci_device_disable(container_of(v9p->dev, QVirtioPCIDevice, vdev));
- qvirtio_pci_device_free((QVirtioPCIDevice *)v9p->dev);
- qvirtio_9p_stop(v9p);
-}
-
-static void pci_config(QVirtIO9P *v9p)
-{
- size_t tag_len = qvirtio_config_readw(v9p->dev, 0);
- char *tag;
- int i;
-
- g_assert_cmpint(tag_len, ==, strlen(mount_tag));
-
- tag = g_malloc(tag_len);
- for (i = 0; i < tag_len; i++) {
- tag[i] = qvirtio_config_readb(v9p->dev, i + 2);
- }
- g_assert_cmpmem(tag, tag_len, mount_tag, tag_len);
- g_free(tag);
-}
-
-#define P9_MAX_SIZE 4096 /* Max size of a T-message or R-message */
-
-typedef struct {
- QVirtIO9P *v9p;
- uint16_t tag;
- uint64_t t_msg;
- uint32_t t_size;
- uint64_t r_msg;
- /* No r_size, it is hardcoded to P9_MAX_SIZE */
- size_t t_off;
- size_t r_off;
- uint32_t free_head;
-} P9Req;
-
-static void v9fs_memwrite(P9Req *req, const void *addr, size_t len)
-{
- memwrite(req->t_msg + req->t_off, addr, len);
- req->t_off += len;
-}
-
-static void v9fs_memskip(P9Req *req, size_t len)
-{
- req->r_off += len;
-}
-
-static void v9fs_memread(P9Req *req, void *addr, size_t len)
-{
- memread(req->r_msg + req->r_off, addr, len);
- req->r_off += len;
-}
-
-static void v9fs_uint16_write(P9Req *req, uint16_t val)
-{
- uint16_t le_val = cpu_to_le16(val);
-
- v9fs_memwrite(req, &le_val, 2);
-}
-
-static void v9fs_uint16_read(P9Req *req, uint16_t *val)
-{
- v9fs_memread(req, val, 2);
- le16_to_cpus(val);
-}
-
-static void v9fs_uint32_write(P9Req *req, uint32_t val)
-{
- uint32_t le_val = cpu_to_le32(val);
-
- v9fs_memwrite(req, &le_val, 4);
-}
-
-static void v9fs_uint32_read(P9Req *req, uint32_t *val)
-{
- v9fs_memread(req, val, 4);
- le32_to_cpus(val);
-}
-
-/* len[2] string[len] */
-static uint16_t v9fs_string_size(const char *string)
-{
- size_t len = strlen(string);
-
- g_assert_cmpint(len, <=, UINT16_MAX);
-
- return 2 + len;
-}
-
-static void v9fs_string_write(P9Req *req, const char *string)
-{
- int len = strlen(string);
-
- g_assert_cmpint(len, <=, UINT16_MAX);
-
- v9fs_uint16_write(req, (uint16_t) len);
- v9fs_memwrite(req, string, len);
-}
-
-static void v9fs_string_read(P9Req *req, uint16_t *len, char **string)
-{
- uint16_t local_len;
-
- v9fs_uint16_read(req, &local_len);
- if (len) {
- *len = local_len;
- }
- if (string) {
- *string = g_malloc(local_len);
- v9fs_memread(req, *string, local_len);
- } else {
- v9fs_memskip(req, local_len);
- }
-}
-
- typedef struct {
- uint32_t size;
- uint8_t id;
- uint16_t tag;
-} QEMU_PACKED P9Hdr;
-
-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 */
- P9Hdr hdr = {
- .size = cpu_to_le32(t_size),
- .id = id,
- .tag = cpu_to_le16(tag)
- };
-
- g_assert_cmpint(t_size, <=, P9_MAX_SIZE);
-
- req->v9p = v9p;
- req->t_size = t_size;
- req->t_msg = guest_alloc(v9p->qs->alloc, req->t_size);
- v9fs_memwrite(req, &hdr, 7);
- req->tag = tag;
- return req;
-}
-
-static void v9fs_req_send(P9Req *req)
-{
- QVirtIO9P *v9p = req->v9p;
-
- req->r_msg = guest_alloc(v9p->qs->alloc, P9_MAX_SIZE);
- req->free_head = qvirtqueue_add(v9p->vq, req->t_msg, req->t_size, false,
- true);
- qvirtqueue_add(v9p->vq, req->r_msg, P9_MAX_SIZE, true, false);
- qvirtqueue_kick(v9p->dev, v9p->vq, req->free_head);
- req->t_off = 0;
-}
-
-static const char *rmessage_name(uint8_t id)
-{
- return
- id == P9_RLERROR ? "RLERROR" :
- id == P9_RVERSION ? "RVERSION" :
- id == P9_RATTACH ? "RATTACH" :
- id == P9_RWALK ? "RWALK" :
- id == P9_RLOPEN ? "RLOPEN" :
- "<unknown>";
-}
-
-static void v9fs_req_wait_for_reply(P9Req *req)
-{
- QVirtIO9P *v9p = req->v9p;
-
- qvirtio_wait_used_elem(v9p->dev, v9p->vq, req->free_head,
- 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);
- hdr.tag = lduw_le_p(&hdr.tag);
-
- g_assert_cmpint(hdr.size, >=, 7);
- g_assert_cmpint(hdr.size, <=, P9_MAX_SIZE);
- g_assert_cmpint(hdr.tag, ==, req->tag);
-
- if (hdr.id != id) {
- g_printerr("Received response %d (%s) instead of %d (%s)\n",
- hdr.id, rmessage_name(hdr.id), id, rmessage_name(id));
-
- if (hdr.id == P9_RLERROR) {
- uint32_t err;
- v9fs_uint32_read(req, &err);
- g_printerr("Rlerror has errno %d (%s)\n", err, strerror(err));
- }
- }
- g_assert_cmpint(hdr.id, ==, id);
-}
-
-static void v9fs_req_free(P9Req *req)
-{
- QVirtIO9P *v9p = req->v9p;
-
- guest_free(v9p->qs->alloc, req->t_msg);
- guest_free(v9p->qs->alloc, req->r_msg);
- g_free(req);
-}
-
-/* size[4] Rlerror tag[2] ecode[4] */
-static void v9fs_rlerror(P9Req *req, uint32_t *err)
-{
- v9fs_req_recv(req, P9_RLERROR);
- v9fs_uint32_read(req, err);
- v9fs_req_free(req);
-}
-
-/* size[4] Tversion tag[2] msize[4] version[s] */
-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,
- tag);
-
- v9fs_uint32_write(req, msize);
- v9fs_string_write(req, version);
- v9fs_req_send(req);
- return req;
-}
-
-/* size[4] Rversion tag[2] msize[4] version[s] */
-static void v9fs_rversion(P9Req *req, uint16_t *len, char **version)
-{
- uint32_t msize;
-
- v9fs_req_recv(req, P9_RVERSION);
- v9fs_uint32_read(req, &msize);
-
- g_assert_cmpint(msize, ==, P9_MAX_SIZE);
-
- if (len || version) {
- v9fs_string_read(req, len, version);
- }
-
- v9fs_req_free(req);
-}
-
-/* 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,
- 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, tag);
-
- v9fs_uint32_write(req, fid);
- v9fs_uint32_write(req, P9_NOFID);
- v9fs_string_write(req, uname);
- v9fs_string_write(req, aname);
- v9fs_uint32_write(req, n_uname);
- v9fs_req_send(req);
- return req;
-}
-
-typedef char v9fs_qid[13];
-
-/* size[4] Rattach tag[2] qid[13] */
-static void v9fs_rattach(P9Req *req, v9fs_qid *qid)
-{
- v9fs_req_recv(req, P9_RATTACH);
- if (qid) {
- v9fs_memread(req, qid, 13);
- }
- v9fs_req_free(req);
-}
-
-/* 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 tag)
-{
- P9Req *req;
- int i;
- uint32_t size = 4 + 4 + 2;
-
- for (i = 0; i < nwname; i++) {
- size += v9fs_string_size(wnames[i]);
- }
- req = v9fs_req_init(v9p, size, P9_TWALK, tag);
- v9fs_uint32_write(req, fid);
- v9fs_uint32_write(req, newfid);
- v9fs_uint16_write(req, nwname);
- for (i = 0; i < nwname; i++) {
- v9fs_string_write(req, wnames[i]);
- }
- v9fs_req_send(req);
- return req;
-}
-
-/* size[4] Rwalk tag[2] nwqid[2] nwqid*(wqid[13]) */
-static void v9fs_rwalk(P9Req *req, uint16_t *nwqid, v9fs_qid **wqid)
-{
- uint16_t local_nwqid;
-
- v9fs_req_recv(req, P9_RWALK);
- v9fs_uint16_read(req, &local_nwqid);
- if (nwqid) {
- *nwqid = local_nwqid;
- }
- if (wqid) {
- *wqid = g_malloc(local_nwqid * 13);
- v9fs_memread(req, *wqid, local_nwqid * 13);
- }
- 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);
-}
-
-static void fs_version(QVirtIO9P *v9p)
-{
- const char *version = "9P2000.L";
- uint16_t server_len;
- char *server_version;
- P9Req *req;
-
- req = v9fs_tversion(v9p, P9_MAX_SIZE, version, P9_NOTAG);
- v9fs_req_wait_for_reply(req);
- v9fs_rversion(req, &server_len, &server_version);
-
- g_assert_cmpmem(server_version, server_len, version, strlen(version));
-
- g_free(server_version);
-}
-
-static void fs_attach(QVirtIO9P *v9p)
-{
- P9Req *req;
-
- fs_version(v9p);
- req = v9fs_tattach(v9p, 0, getuid(), 0);
- v9fs_req_wait_for_reply(req);
- v9fs_rattach(req, NULL);
-}
-
-static void fs_walk(QVirtIO9P *v9p)
-{
- 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(QTEST_V9FS_SYNTH_WALK_FILE, i);
- }
-
- fs_attach(v9p);
- req = v9fs_twalk(v9p, 0, 1, P9_MAXWELEM, wnames, 0);
- v9fs_req_wait_for_reply(req);
- v9fs_rwalk(req, &nwqid, &wqid);
-
- g_assert_cmpint(nwqid, ==, P9_MAXWELEM);
-
- for (i = 0; i < P9_MAXWELEM; i++) {
- g_free(wnames[i]);
- }
-
- g_free(wqid);
-}
-
-static void fs_walk_no_slash(QVirtIO9P *v9p)
-{
- char *const wnames[] = { g_strdup(" /") };
- P9Req *req;
- uint32_t err;
-
- fs_attach(v9p);
- req = v9fs_twalk(v9p, 0, 1, 1, wnames, 0);
- v9fs_req_wait_for_reply(req);
- v9fs_rlerror(req, &err);
-
- g_assert_cmpint(err, ==, ENOENT);
-
- g_free(wnames[0]);
-}
-
-static void fs_walk_dotdot(QVirtIO9P *v9p)
-{
- char *const wnames[] = { g_strdup("..") };
- v9fs_qid root_qid, *wqid;
- P9Req *req;
-
- fs_version(v9p);
- req = v9fs_tattach(v9p, 0, getuid(), 0);
- v9fs_req_wait_for_reply(req);
- v9fs_rattach(req, &root_qid);
-
- req = v9fs_twalk(v9p, 0, 1, 1, wnames, 0);
- v9fs_req_wait_for_reply(req);
- v9fs_rwalk(req, NULL, &wqid); /* We now we'll get one qid */
-
- g_assert_cmpmem(&root_qid, 13, wqid[0], 13);
-
- g_free(wqid);
- 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);
- v9fs_rwalk(req, NULL, NULL);
-
- req = v9fs_tlopen(v9p, 1, O_WRONLY, 0);
- v9fs_req_wait_for_reply(req);
- v9fs_rlopen(req, NULL, NULL);
-
- g_free(wnames[0]);
-}
-
-typedef void (*v9fs_test_fn)(QVirtIO9P *v9p);
-
-static void v9fs_run_pci_test(gconstpointer data)
-{
- v9fs_test_fn fn = data;
- QVirtIO9P *v9p = qvirtio_9p_pci_start();
-
- if (fn) {
- fn(v9p);
- }
- qvirtio_9p_pci_stop(v9p);
-}
-
-static void v9fs_qtest_pci_add(const char *path, v9fs_test_fn fn)
-{
- qtest_add_data_func(path, fn, v9fs_run_pci_test);
-}
-
-int main(int argc, char **argv)
-{
- g_test_init(&argc, &argv, NULL);
- v9fs_qtest_pci_add("/virtio/9p/pci/nop", NULL);
- v9fs_qtest_pci_add("/virtio/9p/pci/config", pci_config);
- v9fs_qtest_pci_add("/virtio/9p/pci/fs/version/basic", fs_version);
- v9fs_qtest_pci_add("/virtio/9p/pci/fs/attach/basic", fs_attach);
- v9fs_qtest_pci_add("/virtio/9p/pci/fs/walk/basic", fs_walk);
- 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);
-
- return g_test_run();
-}
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