tests/9p: merge v9fs_tversion() and do_version()

As with previous patches, unify functions v9fs_tversion() and do_version()
into a single function v9fs_tversion() by using a declarative function
arguments approach.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <2d253491aaffd267ec295f056dda47456692cd0c.1664917004.git.qemu_oss@crudebyte.com>
This commit is contained in:
Christian Schoenebeck 2022-10-04 22:53:33 +02:00
parent 3f3e923220
commit bee8fda2f9
3 changed files with 68 additions and 27 deletions

View File

@ -291,21 +291,54 @@ void v9fs_rlerror(P9Req *req, uint32_t *err)
}
/* size[4] Tversion tag[2] msize[4] version[s] */
P9Req *v9fs_tversion(QVirtio9P *v9p, uint32_t msize, const char *version,
uint16_t tag)
TVersionRes v9fs_tversion(TVersionOpt opt)
{
P9Req *req;
uint32_t err;
uint32_t body_size = 4;
uint16_t string_size = v9fs_string_size(version);
uint16_t string_size;
uint16_t server_len;
g_autofree char *server_version = NULL;
g_assert(opt.client);
if (!opt.msize) {
opt.msize = P9_MAX_SIZE;
}
if (!opt.tag) {
opt.tag = P9_NOTAG;
}
if (!opt.version) {
opt.version = "9P2000.L";
}
string_size = v9fs_string_size(opt.version);
g_assert_cmpint(body_size, <=, UINT32_MAX - string_size);
body_size += string_size;
req = v9fs_req_init(v9p, body_size, P9_TVERSION, tag);
req = v9fs_req_init(opt.client, body_size, P9_TVERSION, opt.tag);
v9fs_uint32_write(req, msize);
v9fs_string_write(req, version);
v9fs_uint32_write(req, opt.msize);
v9fs_string_write(req, opt.version);
v9fs_req_send(req);
return req;
if (!opt.requestOnly) {
v9fs_req_wait_for_reply(req, NULL);
if (opt.expectErr) {
v9fs_rlerror(req, &err);
g_assert_cmpint(err, ==, opt.expectErr);
} else {
v9fs_rversion(req, &server_len, &server_version);
g_assert_cmpmem(server_version, server_len,
opt.version, strlen(opt.version));
}
req = NULL; /* request was freed */
}
return (TVersionRes) {
.req = req,
};
}
/* size[4] Rversion tag[2] msize[4] version[s] */

View File

@ -106,6 +106,28 @@ typedef struct TWalkRes {
P9Req *req;
} TWalkRes;
/* options for 'Tversion' 9p request */
typedef struct TVersionOpt {
/* 9P client being used (mandatory) */
QVirtio9P *client;
/* user supplied tag number being returned with response (optional) */
uint16_t tag;
/* maximum message size that can be handled by client (optional) */
uint32_t msize;
/* protocol version (optional) */
const char *version;
/* only send Tversion request but not wait for a reply? (optional) */
bool requestOnly;
/* do we expect an Rlerror response, if yes which error code? (optional) */
uint32_t expectErr;
} TVersionOpt;
/* result of 'Tversion' 9p request */
typedef struct TVersionRes {
/* if requestOnly was set: request object for further processing */
P9Req *req;
} TVersionRes;
void v9fs_set_allocator(QGuestAllocator *t_alloc);
void v9fs_memwrite(P9Req *req, const void *addr, size_t len);
void v9fs_memskip(P9Req *req, size_t len);
@ -127,8 +149,7 @@ void v9fs_req_wait_for_reply(P9Req *req, uint32_t *len);
void v9fs_req_recv(P9Req *req, uint8_t id);
void v9fs_req_free(P9Req *req);
void v9fs_rlerror(P9Req *req, uint32_t *err);
P9Req *v9fs_tversion(QVirtio9P *v9p, uint32_t msize, const char *version,
uint16_t tag);
TVersionRes v9fs_tversion(TVersionOpt);
void v9fs_rversion(P9Req *req, uint16_t *len, char **version);
P9Req *v9fs_tattach(QVirtio9P *v9p, uint32_t fid, uint32_t n_uname,
uint16_t tag);

View File

@ -17,6 +17,7 @@
#include "libqos/virtio-9p-client.h"
#define twalk(...) v9fs_twalk((TWalkOpt) __VA_ARGS__)
#define tversion(...) v9fs_tversion((TVersionOpt) __VA_ARGS__)
static void pci_config(void *obj, void *data, QGuestAllocator *t_alloc)
{
@ -41,31 +42,17 @@ static inline bool is_same_qid(v9fs_qid a, v9fs_qid b)
return a[0] == b[0] && memcmp(&a[5], &b[5], 8) == 0;
}
static void do_version(QVirtio9P *v9p)
{
const char *version = "9P2000.L";
uint16_t server_len;
g_autofree char *server_version = NULL;
P9Req *req;
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));
}
static void fs_version(void *obj, void *data, QGuestAllocator *t_alloc)
{
v9fs_set_allocator(t_alloc);
do_version(obj);
tversion({ .client = obj });
}
static void do_attach_rqid(QVirtio9P *v9p, v9fs_qid *qid)
{
P9Req *req;
do_version(v9p);
tversion({ .client = v9p });
req = v9fs_tattach(v9p, 0, getuid(), 0);
v9fs_req_wait_for_reply(req, NULL);
v9fs_rattach(req, qid);
@ -328,7 +315,7 @@ static void fs_walk_none(void *obj, void *data, QGuestAllocator *t_alloc)
P9Req *req;
struct v9fs_attr attr;
do_version(v9p);
tversion({ .client = v9p });
req = v9fs_tattach(v9p, 0, getuid(), 0);
v9fs_req_wait_for_reply(req, NULL);
v9fs_rattach(req, &root_qid);
@ -357,7 +344,7 @@ static void fs_walk_dotdot(void *obj, void *data, QGuestAllocator *t_alloc)
g_autofree v9fs_qid *wqid = NULL;
P9Req *req;
do_version(v9p);
tversion({ .client = v9p });
req = v9fs_tattach(v9p, 0, getuid(), 0);
v9fs_req_wait_for_reply(req, NULL);
v9fs_rattach(req, &root_qid);