diff options
Diffstat (limited to 'tests/qtest/libqos/virtio-9p-client.c')
| -rw-r--r-- | tests/qtest/libqos/virtio-9p-client.c | 1049 |
1 files changed, 1049 insertions, 0 deletions
diff --git a/tests/qtest/libqos/virtio-9p-client.c b/tests/qtest/libqos/virtio-9p-client.c new file mode 100644 index 0000000000..e4a368e036 --- /dev/null +++ b/tests/qtest/libqos/virtio-9p-client.c @@ -0,0 +1,1049 @@ +/* + * 9P network client for VirtIO 9P test cases (based on QTest) + * + * 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. + */ + +/* + * Not so fast! You might want to read the 9p developer docs first: + * https://wiki.qemu.org/Documentation/9p + */ + +#include "qemu/osdep.h" +#include "virtio-9p-client.h" + +#define QVIRTIO_9P_TIMEOUT_US (10 * 1000 * 1000) +static QGuestAllocator *alloc; + +void v9fs_set_allocator(QGuestAllocator *t_alloc) +{ + alloc = t_alloc; +} + +/* + * Used to auto generate new fids. Start with arbitrary high value to avoid + * collision with hard coded fids in basic test code. + */ +static uint32_t fid_generator = 1000; + +static uint32_t genfid(void) +{ + return fid_generator++; +} + +/** + * Splits the @a in string by @a delim into individual (non empty) strings + * and outputs them to @a out. The output array @a out is NULL terminated. + * + * Output array @a out must be freed by calling split_free(). + * + * @returns number of individual elements in output array @a out (without the + * final NULL terminating element) + */ +static int split(const char *in, const char *delim, char ***out) +{ + int n = 0, i = 0; + char *tmp, *p; + + tmp = g_strdup(in); + for (p = strtok(tmp, delim); p != NULL; p = strtok(NULL, delim)) { + if (strlen(p) > 0) { + ++n; + } + } + g_free(tmp); + + *out = g_new0(char *, n + 1); /* last element NULL delimiter */ + + tmp = g_strdup(in); + for (p = strtok(tmp, delim); p != NULL; p = strtok(NULL, delim)) { + if (strlen(p) > 0) { + (*out)[i++] = g_strdup(p); + } + } + g_free(tmp); + + return n; +} + +static void split_free(char ***out) +{ + int i; + if (!*out) { + return; + } + for (i = 0; (*out)[i]; ++i) { + g_free((*out)[i]); + } + g_free(*out); + *out = NULL; +} + +void v9fs_memwrite(P9Req *req, const void *addr, size_t len) +{ + qtest_memwrite(req->qts, req->t_msg + req->t_off, addr, len); + req->t_off += len; +} + +void v9fs_memskip(P9Req *req, size_t len) +{ + req->r_off += len; +} + +void v9fs_memread(P9Req *req, void *addr, size_t len) +{ + qtest_memread(req->qts, req->r_msg + req->r_off, addr, len); + req->r_off += len; +} + +void v9fs_uint8_read(P9Req *req, uint8_t *val) +{ + v9fs_memread(req, val, 1); +} + +void v9fs_uint16_write(P9Req *req, uint16_t val) +{ + uint16_t le_val = cpu_to_le16(val); + + v9fs_memwrite(req, &le_val, 2); +} + +void v9fs_uint16_read(P9Req *req, uint16_t *val) +{ + v9fs_memread(req, val, 2); + le16_to_cpus(val); +} + +void v9fs_uint32_write(P9Req *req, uint32_t val) +{ + uint32_t le_val = cpu_to_le32(val); + + v9fs_memwrite(req, &le_val, 4); +} + +void v9fs_uint64_write(P9Req *req, uint64_t val) +{ + uint64_t le_val = cpu_to_le64(val); + + v9fs_memwrite(req, &le_val, 8); +} + +void v9fs_uint32_read(P9Req *req, uint32_t *val) +{ + v9fs_memread(req, val, 4); + le32_to_cpus(val); +} + +void v9fs_uint64_read(P9Req *req, uint64_t *val) +{ + v9fs_memread(req, val, 8); + le64_to_cpus(val); +} + +/* len[2] string[len] */ +uint16_t v9fs_string_size(const char *string) +{ + size_t len = strlen(string); + + g_assert_cmpint(len, <=, UINT16_MAX - 2); + + return 2 + len; +} + +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); +} + +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 + 1); + v9fs_memread(req, *string, local_len); + (*string)[local_len] = 0; + } else { + v9fs_memskip(req, local_len); + } +} + +typedef struct { + uint32_t size; + uint8_t id; + uint16_t tag; +} QEMU_PACKED P9Hdr; + +P9Req *v9fs_req_init(QVirtio9P *v9p, uint32_t size, uint8_t id, + uint16_t tag) +{ + P9Req *req = g_new0(P9Req, 1); + uint32_t total_size = 7; /* 9P header has well-known size of 7 bytes */ + P9Hdr hdr = { + .id = id, + .tag = cpu_to_le16(tag) + }; + + 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->qts = global_qtest; + req->v9p = v9p; + req->t_size = total_size; + req->t_msg = guest_alloc(alloc, req->t_size); + v9fs_memwrite(req, &hdr, 7); + req->tag = tag; + return req; +} + +void v9fs_req_send(P9Req *req) +{ + QVirtio9P *v9p = req->v9p; + + req->r_msg = guest_alloc(alloc, P9_MAX_SIZE); + req->free_head = qvirtqueue_add(req->qts, v9p->vq, req->t_msg, req->t_size, + false, true); + qvirtqueue_add(req->qts, v9p->vq, req->r_msg, P9_MAX_SIZE, true, false); + qvirtqueue_kick(req->qts, v9p->vdev, 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" : + id == P9_RWRITE ? "RWRITE" : + id == P9_RMKDIR ? "RMKDIR" : + id == P9_RLCREATE ? "RLCREATE" : + id == P9_RSYMLINK ? "RSYMLINK" : + id == P9_RLINK ? "RLINK" : + id == P9_RUNLINKAT ? "RUNLINKAT" : + id == P9_RFLUSH ? "RFLUSH" : + id == P9_RREADDIR ? "READDIR" : + "<unknown>"; +} + +void v9fs_req_wait_for_reply(P9Req *req, uint32_t *len) +{ + QVirtio9P *v9p = req->v9p; + + qvirtio_wait_used_elem(req->qts, v9p->vdev, v9p->vq, req->free_head, len, + QVIRTIO_9P_TIMEOUT_US); +} + +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); +} + +void v9fs_req_free(P9Req *req) +{ + guest_free(alloc, req->t_msg); + guest_free(alloc, req->r_msg); + g_free(req); +} + +/* size[4] Rlerror tag[2] ecode[4] */ +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] */ +TVersionRes v9fs_tversion(TVersionOpt opt) +{ + P9Req *req; + uint32_t err; + uint32_t body_size = 4; + 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(opt.client, body_size, P9_TVERSION, opt.tag); + + v9fs_uint32_write(req, opt.msize); + v9fs_string_write(req, opt.version); + v9fs_req_send(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] */ +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] */ +TAttachRes v9fs_tattach(TAttachOpt opt) +{ + uint32_t err; + const char *uname = ""; /* ignored by QEMU */ + const char *aname = ""; /* ignored by QEMU */ + + g_assert(opt.client); + /* expecting either Rattach or Rlerror, but obviously not both */ + g_assert(!opt.expectErr || !opt.rattach.qid); + + if (!opt.requestOnly) { + v9fs_tversion((TVersionOpt) { .client = opt.client }); + } + + if (!opt.n_uname) { + opt.n_uname = getuid(); + } + + P9Req *req = v9fs_req_init(opt.client, 4 + 4 + 2 + 2 + 4, P9_TATTACH, + opt.tag); + + v9fs_uint32_write(req, opt.fid); + v9fs_uint32_write(req, P9_NOFID); + v9fs_string_write(req, uname); + v9fs_string_write(req, aname); + v9fs_uint32_write(req, opt.n_uname); + v9fs_req_send(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_rattach(req, opt.rattach.qid); + } + req = NULL; /* request was freed */ + } + + return (TAttachRes) { + .req = req, + }; +} + +/* size[4] Rattach tag[2] qid[13] */ +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]) */ +TWalkRes v9fs_twalk(TWalkOpt opt) +{ + P9Req *req; + int i; + uint32_t body_size = 4 + 4 + 2; + uint32_t err; + char **wnames = NULL; + + g_assert(opt.client); + /* expecting either high- or low-level path, both not both */ + g_assert(!opt.path || !(opt.nwname || opt.wnames)); + /* expecting either Rwalk or Rlerror, but obviously not both */ + g_assert(!opt.expectErr || !(opt.rwalk.nwqid || opt.rwalk.wqid)); + + if (!opt.newfid) { + opt.newfid = genfid(); + } + + if (opt.path) { + opt.nwname = split(opt.path, "/", &wnames); + opt.wnames = wnames; + } + + for (i = 0; i < opt.nwname; i++) { + uint16_t wname_size = v9fs_string_size(opt.wnames[i]); + + g_assert_cmpint(body_size, <=, UINT32_MAX - wname_size); + body_size += wname_size; + } + req = v9fs_req_init(opt.client, body_size, P9_TWALK, opt.tag); + v9fs_uint32_write(req, opt.fid); + v9fs_uint32_write(req, opt.newfid); + v9fs_uint16_write(req, opt.nwname); + for (i = 0; i < opt.nwname; i++) { + v9fs_string_write(req, opt.wnames[i]); + } + v9fs_req_send(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_rwalk(req, opt.rwalk.nwqid, opt.rwalk.wqid); + } + req = NULL; /* request was freed */ + } + + split_free(&wnames); + + return (TWalkRes) { + .newfid = opt.newfid, + .req = req, + }; +} + +/* size[4] Rwalk tag[2] nwqid[2] nwqid*(wqid[13]) */ +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] Tgetattr tag[2] fid[4] request_mask[8] */ +TGetAttrRes v9fs_tgetattr(TGetAttrOpt opt) +{ + P9Req *req; + uint32_t err; + + g_assert(opt.client); + /* expecting either Rgetattr or Rlerror, but obviously not both */ + g_assert(!opt.expectErr || !opt.rgetattr.attr); + + if (!opt.request_mask) { + opt.request_mask = P9_GETATTR_ALL; + } + + req = v9fs_req_init(opt.client, 4 + 8, P9_TGETATTR, opt.tag); + v9fs_uint32_write(req, opt.fid); + v9fs_uint64_write(req, opt.request_mask); + v9fs_req_send(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_rgetattr(req, opt.rgetattr.attr); + } + req = NULL; /* request was freed */ + } + + return (TGetAttrRes) { .req = req }; +} + +/* + * size[4] Rgetattr tag[2] valid[8] qid[13] mode[4] uid[4] gid[4] nlink[8] + * rdev[8] size[8] blksize[8] blocks[8] + * atime_sec[8] atime_nsec[8] mtime_sec[8] mtime_nsec[8] + * ctime_sec[8] ctime_nsec[8] btime_sec[8] btime_nsec[8] + * gen[8] data_version[8] + */ +void v9fs_rgetattr(P9Req *req, v9fs_attr *attr) +{ + v9fs_req_recv(req, P9_RGETATTR); + + v9fs_uint64_read(req, &attr->valid); + v9fs_memread(req, &attr->qid, 13); + v9fs_uint32_read(req, &attr->mode); + v9fs_uint32_read(req, &attr->uid); + v9fs_uint32_read(req, &attr->gid); + v9fs_uint64_read(req, &attr->nlink); + v9fs_uint64_read(req, &attr->rdev); + v9fs_uint64_read(req, &attr->size); + v9fs_uint64_read(req, &attr->blksize); + v9fs_uint64_read(req, &attr->blocks); + v9fs_uint64_read(req, &attr->atime_sec); + v9fs_uint64_read(req, &attr->atime_nsec); + v9fs_uint64_read(req, &attr->mtime_sec); + v9fs_uint64_read(req, &attr->mtime_nsec); + v9fs_uint64_read(req, &attr->ctime_sec); + v9fs_uint64_read(req, &attr->ctime_nsec); + v9fs_uint64_read(req, &attr->btime_sec); + v9fs_uint64_read(req, &attr->btime_nsec); + v9fs_uint64_read(req, &attr->gen); + v9fs_uint64_read(req, &attr->data_version); + + v9fs_req_free(req); +} + +/* size[4] Treaddir tag[2] fid[4] offset[8] count[4] */ +TReadDirRes v9fs_treaddir(TReadDirOpt opt) +{ + P9Req *req; + uint32_t err; + + g_assert(opt.client); + /* expecting either Rreaddir or Rlerror, but obviously not both */ + g_assert(!opt.expectErr || !(opt.rreaddir.count || + opt.rreaddir.nentries || opt.rreaddir.entries)); + + req = v9fs_req_init(opt.client, 4 + 8 + 4, P9_TREADDIR, opt.tag); + v9fs_uint32_write(req, opt.fid); + v9fs_uint64_write(req, opt.offset); + v9fs_uint32_write(req, opt.count); + v9fs_req_send(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_rreaddir(req, opt.rreaddir.count, opt.rreaddir.nentries, + opt.rreaddir.entries); + } + req = NULL; /* request was freed */ + } + + return (TReadDirRes) { .req = req }; +} + +/* size[4] Rreaddir tag[2] count[4] data[count] */ +void v9fs_rreaddir(P9Req *req, uint32_t *count, uint32_t *nentries, + struct V9fsDirent **entries) +{ + uint32_t local_count; + struct V9fsDirent *e = NULL; + uint16_t slen; + uint32_t n = 0; + + v9fs_req_recv(req, P9_RREADDIR); + v9fs_uint32_read(req, &local_count); + + if (count) { + *count = local_count; + } + + for (int32_t togo = (int32_t)local_count; + togo >= 13 + 8 + 1 + 2; + togo -= 13 + 8 + 1 + 2 + slen, ++n) + { + if (!e) { + e = g_new(struct V9fsDirent, 1); + if (entries) { + *entries = e; + } + } else { + e = e->next = g_new(struct V9fsDirent, 1); + } + e->next = NULL; + /* qid[13] offset[8] type[1] name[s] */ + v9fs_memread(req, &e->qid, 13); + v9fs_uint64_read(req, &e->offset); + v9fs_uint8_read(req, &e->type); + v9fs_string_read(req, &slen, &e->name); + } + + if (nentries) { + *nentries = n; + } + + v9fs_req_free(req); +} + +void v9fs_free_dirents(struct V9fsDirent *e) +{ + struct V9fsDirent *next = NULL; + + for (; e; e = next) { + next = e->next; + g_free(e->name); + g_free(e); + } +} + +/* size[4] Tlopen tag[2] fid[4] flags[4] */ +TLOpenRes v9fs_tlopen(TLOpenOpt opt) +{ + P9Req *req; + uint32_t err; + + g_assert(opt.client); + /* expecting either Rlopen or Rlerror, but obviously not both */ + g_assert(!opt.expectErr || !(opt.rlopen.qid || opt.rlopen.iounit)); + + req = v9fs_req_init(opt.client, 4 + 4, P9_TLOPEN, opt.tag); + v9fs_uint32_write(req, opt.fid); + v9fs_uint32_write(req, opt.flags); + v9fs_req_send(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_rlopen(req, opt.rlopen.qid, opt.rlopen.iounit); + } + req = NULL; /* request was freed */ + } + + return (TLOpenRes) { .req = req }; +} + +/* size[4] Rlopen tag[2] qid[13] iounit[4] */ +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] */ +TWriteRes v9fs_twrite(TWriteOpt opt) +{ + P9Req *req; + uint32_t err; + uint32_t body_size = 4 + 8 + 4; + uint32_t written = 0; + + g_assert(opt.client); + + g_assert_cmpint(body_size, <=, UINT32_MAX - opt.count); + body_size += opt.count; + req = v9fs_req_init(opt.client, body_size, P9_TWRITE, opt.tag); + v9fs_uint32_write(req, opt.fid); + v9fs_uint64_write(req, opt.offset); + v9fs_uint32_write(req, opt.count); + v9fs_memwrite(req, opt.data, opt.count); + v9fs_req_send(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_rwrite(req, &written); + } + req = NULL; /* request was freed */ + } + + return (TWriteRes) { + .req = req, + .count = written + }; +} + +/* size[4] Rwrite tag[2] count[4] */ +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] */ +TFlushRes v9fs_tflush(TFlushOpt opt) +{ + P9Req *req; + uint32_t err; + + g_assert(opt.client); + + req = v9fs_req_init(opt.client, 2, P9_TFLUSH, opt.tag); + v9fs_uint32_write(req, opt.oldtag); + v9fs_req_send(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_rflush(req); + } + req = NULL; /* request was freed */ + } + + return (TFlushRes) { .req = req }; +} + +/* size[4] Rflush tag[2] */ +void v9fs_rflush(P9Req *req) +{ + v9fs_req_recv(req, P9_RFLUSH); + v9fs_req_free(req); +} + +/* size[4] Tmkdir tag[2] dfid[4] name[s] mode[4] gid[4] */ +TMkdirRes v9fs_tmkdir(TMkdirOpt opt) +{ + P9Req *req; + uint32_t err; + + g_assert(opt.client); + /* expecting either hi-level atPath or low-level dfid, but not both */ + g_assert(!opt.atPath || !opt.dfid); + /* expecting either Rmkdir or Rlerror, but obviously not both */ + g_assert(!opt.expectErr || !opt.rmkdir.qid); + + if (opt.atPath) { + opt.dfid = v9fs_twalk((TWalkOpt) { .client = opt.client, + .path = opt.atPath }).newfid; + } + + if (!opt.mode) { + opt.mode = 0750; + } + + uint32_t body_size = 4 + 4 + 4; + uint16_t string_size = v9fs_string_size(opt.name); + + g_assert_cmpint(body_size, <=, UINT32_MAX - string_size); + body_size += string_size; + + req = v9fs_req_init(opt.client, body_size, P9_TMKDIR, opt.tag); + v9fs_uint32_write(req, opt.dfid); + v9fs_string_write(req, opt.name); + v9fs_uint32_write(req, opt.mode); + v9fs_uint32_write(req, opt.gid); + v9fs_req_send(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_rmkdir(req, opt.rmkdir.qid); + } + req = NULL; /* request was freed */ + } + + return (TMkdirRes) { .req = req }; +} + +/* size[4] Rmkdir tag[2] qid[13] */ +void v9fs_rmkdir(P9Req *req, v9fs_qid *qid) +{ + v9fs_req_recv(req, P9_RMKDIR); + if (qid) { + v9fs_memread(req, qid, 13); + } else { + v9fs_memskip(req, 13); + } + v9fs_req_free(req); +} + +/* size[4] Tlcreate tag[2] fid[4] name[s] flags[4] mode[4] gid[4] */ +TlcreateRes v9fs_tlcreate(TlcreateOpt opt) +{ + P9Req *req; + uint32_t err; + + g_assert(opt.client); + /* expecting either hi-level atPath or low-level fid, but not both */ + g_assert(!opt.atPath || !opt.fid); + /* expecting either Rlcreate or Rlerror, but obviously not both */ + g_assert(!opt.expectErr || !(opt.rlcreate.qid || opt.rlcreate.iounit)); + + if (opt.atPath) { + opt.fid = v9fs_twalk((TWalkOpt) { .client = opt.client, + .path = opt.atPath }).newfid; + } + + if (!opt.mode) { + opt.mode = 0750; + } + + uint32_t body_size = 4 + 4 + 4 + 4; + uint16_t string_size = v9fs_string_size(opt.name); + + g_assert_cmpint(body_size, <=, UINT32_MAX - string_size); + body_size += string_size; + + req = v9fs_req_init(opt.client, body_size, P9_TLCREATE, opt.tag); + v9fs_uint32_write(req, opt.fid); + v9fs_string_write(req, opt.name); + v9fs_uint32_write(req, opt.flags); + v9fs_uint32_write(req, opt.mode); + v9fs_uint32_write(req, opt.gid); + v9fs_req_send(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_rlcreate(req, opt.rlcreate.qid, opt.rlcreate.iounit); + } + req = NULL; /* request was freed */ + } + + return (TlcreateRes) { .req = req }; +} + +/* size[4] Rlcreate tag[2] qid[13] iounit[4] */ +void v9fs_rlcreate(P9Req *req, v9fs_qid *qid, uint32_t *iounit) +{ + v9fs_req_recv(req, P9_RLCREATE); + 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] Tsymlink tag[2] fid[4] name[s] symtgt[s] gid[4] */ +TsymlinkRes v9fs_tsymlink(TsymlinkOpt opt) +{ + P9Req *req; + uint32_t err; + + g_assert(opt.client); + /* expecting either hi-level atPath or low-level fid, but not both */ + g_assert(!opt.atPath || !opt.fid); + /* expecting either Rsymlink or Rlerror, but obviously not both */ + g_assert(!opt.expectErr || !opt.rsymlink.qid); + + if (opt.atPath) { + opt.fid = v9fs_twalk((TWalkOpt) { .client = opt.client, + .path = opt.atPath }).newfid; + } + + uint32_t body_size = 4 + 4; + uint16_t string_size = v9fs_string_size(opt.name) + + v9fs_string_size(opt.symtgt); + + g_assert_cmpint(body_size, <=, UINT32_MAX - string_size); + body_size += string_size; + + req = v9fs_req_init(opt.client, body_size, P9_TSYMLINK, opt.tag); + v9fs_uint32_write(req, opt.fid); + v9fs_string_write(req, opt.name); + v9fs_string_write(req, opt.symtgt); + v9fs_uint32_write(req, opt.gid); + v9fs_req_send(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_rsymlink(req, opt.rsymlink.qid); + } + req = NULL; /* request was freed */ + } + + return (TsymlinkRes) { .req = req }; +} + +/* size[4] Rsymlink tag[2] qid[13] */ +void v9fs_rsymlink(P9Req *req, v9fs_qid *qid) +{ + v9fs_req_recv(req, P9_RSYMLINK); + if (qid) { + v9fs_memread(req, qid, 13); + } else { + v9fs_memskip(req, 13); + } + v9fs_req_free(req); +} + +/* size[4] Tlink tag[2] dfid[4] fid[4] name[s] */ +TlinkRes v9fs_tlink(TlinkOpt opt) +{ + P9Req *req; + uint32_t err; + + g_assert(opt.client); + /* expecting either hi-level atPath or low-level dfid, but not both */ + g_assert(!opt.atPath || !opt.dfid); + /* expecting either hi-level toPath or low-level fid, but not both */ + g_assert(!opt.toPath || !opt.fid); + + if (opt.atPath) { + opt.dfid = v9fs_twalk((TWalkOpt) { .client = opt.client, + .path = opt.atPath }).newfid; + } + if (opt.toPath) { + opt.fid = v9fs_twalk((TWalkOpt) { .client = opt.client, + .path = opt.toPath }).newfid; + } + + uint32_t body_size = 4 + 4; + uint16_t string_size = v9fs_string_size(opt.name); + + g_assert_cmpint(body_size, <=, UINT32_MAX - string_size); + body_size += string_size; + + req = v9fs_req_init(opt.client, body_size, P9_TLINK, opt.tag); + v9fs_uint32_write(req, opt.dfid); + v9fs_uint32_write(req, opt.fid); + v9fs_string_write(req, opt.name); + v9fs_req_send(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_rlink(req); + } + req = NULL; /* request was freed */ + } + + return (TlinkRes) { .req = req }; +} + +/* size[4] Rlink tag[2] */ +void v9fs_rlink(P9Req *req) +{ + v9fs_req_recv(req, P9_RLINK); + v9fs_req_free(req); +} + +/* size[4] Tunlinkat tag[2] dirfd[4] name[s] flags[4] */ +TunlinkatRes v9fs_tunlinkat(TunlinkatOpt opt) +{ + P9Req *req; + uint32_t err; + + g_assert(opt.client); + /* expecting either hi-level atPath or low-level dirfd, but not both */ + g_assert(!opt.atPath || !opt.dirfd); + + if (opt.atPath) { + opt.dirfd = v9fs_twalk((TWalkOpt) { .client = opt.client, + .path = opt.atPath }).newfid; + } + + uint32_t body_size = 4 + 4; + uint16_t string_size = v9fs_string_size(opt.name); + + g_assert_cmpint(body_size, <=, UINT32_MAX - string_size); + body_size += string_size; + + req = v9fs_req_init(opt.client, body_size, P9_TUNLINKAT, opt.tag); + v9fs_uint32_write(req, opt.dirfd); + v9fs_string_write(req, opt.name); + v9fs_uint32_write(req, opt.flags); + v9fs_req_send(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_runlinkat(req); + } + req = NULL; /* request was freed */ + } + + return (TunlinkatRes) { .req = req }; +} + +/* size[4] Runlinkat tag[2] */ +void v9fs_runlinkat(P9Req *req) +{ + v9fs_req_recv(req, P9_RUNLINKAT); + v9fs_req_free(req); +} |