diff options
author | Volker Lendecke <vl@samba.org> | 2009-04-05 20:51:52 +0200 |
---|---|---|
committer | Volker Lendecke <vl@samba.org> | 2009-04-06 21:32:06 +0200 |
commit | 7ef78bd7b5b5d1b2c5c06d1170f80ea77f036353 (patch) | |
tree | 699ffaebaadd736b2097e5be8dce74d0ceb752c9 /source3/libsmb/clitrans.c | |
parent | dec928e884f492c7a5e5e8c87e2ff0c1944da5f1 (diff) | |
download | samba-7ef78bd7b5b5d1b2c5c06d1170f80ea77f036353.tar.gz samba-7ef78bd7b5b5d1b2c5c06d1170f80ea77f036353.tar.xz samba-7ef78bd7b5b5d1b2c5c06d1170f80ea77f036353.zip |
Convert cli_trans to tevent_req
Diffstat (limited to 'source3/libsmb/clitrans.c')
-rw-r--r-- | source3/libsmb/clitrans.c | 654 |
1 files changed, 272 insertions, 382 deletions
diff --git a/source3/libsmb/clitrans.c b/source3/libsmb/clitrans.c index ada2d86f76..3a6aa9e72c 100644 --- a/source3/libsmb/clitrans.c +++ b/source3/libsmb/clitrans.c @@ -704,6 +704,8 @@ struct cli_trans_state { uint16_t mid; uint32_t seqnum; const char *pipe_name; + uint8_t *pipe_name_conv; + size_t pipe_name_conv_len; uint16_t fid; uint16_t function; int flags; @@ -720,27 +722,131 @@ struct cli_trans_state { struct trans_recvblob rdata; TALLOC_CTX *secondary_request_ctx; + + struct iovec iov[4]; + uint8_t pad[4]; + uint16_t vwv[32]; }; -static void cli_trans_recv_helper(struct async_req *req); +static NTSTATUS cli_pull_trans(uint8_t *inbuf, + uint8_t wct, uint16_t *vwv, + uint16_t num_bytes, uint8_t *bytes, + uint8_t smb_cmd, bool expect_first_reply, + uint8_t *pnum_setup, uint16_t **psetup, + uint32_t *ptotal_param, uint32_t *pnum_param, + uint32_t *pparam_disp, uint8_t **pparam, + uint32_t *ptotal_data, uint32_t *pnum_data, + uint32_t *pdata_disp, uint8_t **pdata) +{ + uint32_t param_ofs, data_ofs; + + if (expect_first_reply) { + if ((wct != 0) || (num_bytes != 0)) { + return NT_STATUS_INVALID_NETWORK_RESPONSE; + } + return NT_STATUS_OK; + } + + switch (smb_cmd) { + case SMBtrans: + case SMBtrans2: + if (wct < 10) { + return NT_STATUS_INVALID_NETWORK_RESPONSE; + } + *ptotal_param = SVAL(vwv + 0, 0); + *ptotal_data = SVAL(vwv + 1, 0); + *pnum_param = SVAL(vwv + 3, 0); + param_ofs = SVAL(vwv + 4, 0); + *pparam_disp = SVAL(vwv + 5, 0); + *pnum_data = SVAL(vwv + 6, 0); + data_ofs = SVAL(vwv + 7, 0); + *pdata_disp = SVAL(vwv + 8, 0); + *pnum_setup = CVAL(vwv + 9, 0); + if (wct < 10 + (*pnum_setup)) { + return NT_STATUS_INVALID_NETWORK_RESPONSE; + } + *psetup = vwv + 10; -static struct async_req *cli_ship_trans(TALLOC_CTX *mem_ctx, - struct cli_trans_state *state) + break; + case SMBnttrans: + if (wct < 18) { + return NT_STATUS_INVALID_NETWORK_RESPONSE; + } + *ptotal_param = IVAL(vwv, 3); + *ptotal_data = IVAL(vwv, 7); + *pnum_param = IVAL(vwv, 11); + param_ofs = IVAL(vwv, 15); + *pparam_disp = IVAL(vwv, 19); + *pnum_data = IVAL(vwv, 23); + data_ofs = IVAL(vwv, 27); + *pdata_disp = IVAL(vwv, 31); + *pnum_setup = CVAL(vwv, 35); + *psetup = vwv + 18; + break; + + default: + return NT_STATUS_INTERNAL_ERROR; + } + + /* + * Check for buffer overflows. data_ofs needs to be checked against + * the incoming buffer length, data_disp against the total + * length. Likewise for param_ofs/param_disp. + */ + + if (trans_oob(smb_len(inbuf), param_ofs, *pnum_param) + || trans_oob(*ptotal_param, *pparam_disp, *pnum_param) + || trans_oob(smb_len(inbuf), data_ofs, *pnum_data) + || trans_oob(*ptotal_data, *pdata_disp, *pnum_data)) { + return NT_STATUS_INVALID_NETWORK_RESPONSE; + } + + *pparam = (uint8_t *)inbuf + 4 + param_ofs; + *pdata = (uint8_t *)inbuf + 4 + data_ofs; + + return NT_STATUS_OK; +} + +static NTSTATUS cli_trans_pull_blob(TALLOC_CTX *mem_ctx, + struct trans_recvblob *blob, + uint32_t total, uint32_t thistime, + uint8_t *buf, uint32_t displacement) { - TALLOC_CTX *frame; - struct async_req *result = NULL; - struct cli_request *cli_req; - uint8_t wct; - uint16_t *vwv; - uint8_t *bytes = NULL; + if (blob->data == NULL) { + if (total > blob->max) { + return NT_STATUS_INVALID_NETWORK_RESPONSE; + } + blob->total = total; + blob->data = TALLOC_ARRAY(mem_ctx, uint8_t, total); + if (blob->data == NULL) { + return NT_STATUS_NO_MEMORY; + } + } + + if (total > blob->total) { + return NT_STATUS_INVALID_NETWORK_RESPONSE; + } + + if (thistime) { + memcpy(blob->data + displacement, buf, thistime); + blob->received += thistime; + } + + return NT_STATUS_OK; +} + +static void cli_trans_format(struct cli_trans_state *state, uint8_t *pwct, + int *piov_count) +{ + uint8_t wct = 0; + struct iovec *iov = state->iov; + uint8_t *pad = state->pad; + uint16_t *vwv = state->vwv; uint16_t param_offset; uint16_t this_param = 0; uint16_t this_data = 0; uint32_t useable_space; uint8_t cmd; - uint8_t pad[3]; - - frame = talloc_stackframe(); cmd = state->cmd; @@ -751,39 +857,26 @@ static struct async_req *cli_ship_trans(TALLOC_CTX *mem_ctx, param_offset = smb_size - 4; - bytes = TALLOC_ARRAY(talloc_tos(), uint8_t, 0); /* padding */ - if (bytes == NULL) { - goto fail; - } - switch (cmd) { case SMBtrans: pad[0] = 0; - bytes = (uint8_t *)talloc_append_blob(talloc_tos(), bytes, - data_blob_const(pad, 1)); - if (bytes == NULL) { - goto fail; - } - bytes = smb_bytes_push_str(bytes, cli_ucs2(state->cli), - state->pipe_name, - strlen(state->pipe_name)+1, NULL); - if (bytes == NULL) { - goto fail; - } + iov[0].iov_base = pad; + iov[0].iov_len = 1; + iov[1].iov_base = state->pipe_name_conv; + iov[1].iov_len = state->pipe_name_conv_len; wct = 14 + state->num_setup; - param_offset += talloc_get_size(bytes); + param_offset += iov[0].iov_len + iov[1].iov_len; + iov += 2; break; case SMBtrans2: pad[0] = 0; pad[1] = 'D'; /* Copy this from "old" 3.0 behaviour */ pad[2] = ' '; - bytes = (uint8_t *)talloc_append_blob(talloc_tos(), bytes, - data_blob_const(pad, 3)); - if (bytes == NULL) { - goto fail; - } + iov[0].iov_base = pad; + iov[0].iov_len = 3; wct = 14 + state->num_setup; - param_offset += talloc_get_size(bytes); + param_offset += 3; + iov += 1; break; case SMBtranss: wct = 8; @@ -797,8 +890,6 @@ static struct async_req *cli_ship_trans(TALLOC_CTX *mem_ctx, case SMBnttranss: wct = 18; break; - default: - goto fail; } useable_space = state->cli->max_xmit - smb_size - sizeof(uint16_t)*wct; @@ -806,17 +897,19 @@ static struct async_req *cli_ship_trans(TALLOC_CTX *mem_ctx, if (state->param_sent < state->num_param) { this_param = MIN(state->num_param - state->param_sent, useable_space); + iov[0].iov_base = state->param + state->param_sent; + iov[0].iov_len = this_param; + iov += 1; } if (state->data_sent < state->num_data) { this_data = MIN(state->num_data - state->data_sent, useable_space - this_param); + iov[0].iov_base = state->data + state->data_sent; + iov[0].iov_len = this_data; + iov += 1; } - vwv = TALLOC_ARRAY(talloc_tos(), uint16_t, wct); - if (vwv == NULL) { - goto fail; - } param_offset += wct * sizeof(uint16_t); DEBUG(10, ("num_setup=%u, max_setup=%u, " @@ -897,209 +990,119 @@ static struct async_req *cli_ship_trans(TALLOC_CTX *mem_ctx, break; } - bytes = (uint8_t *)talloc_append_blob( - talloc_tos(), bytes, - data_blob_const(state->param + state->param_sent, this_param)); - if (bytes == NULL) { - goto fail; - } state->param_sent += this_param; - - bytes = (uint8_t *)talloc_append_blob( - talloc_tos(), bytes, - data_blob_const(state->data + state->data_sent, this_data)); - if (bytes == NULL) { - goto fail; - } state->data_sent += this_data; - if ((cmd == SMBtrans) || (cmd == SMBtrans2) || (cmd == SMBnttrans)) { - /* - * Primary request, retrieve our mid - */ - result = cli_request_send(mem_ctx, state->ev, state->cli, - cmd, 0, wct, vwv, 0, - talloc_get_size(bytes), bytes); - if (result == NULL) { - goto fail; - } - cli_req = talloc_get_type_abort(result->private_data, - struct cli_request); - state->mid = cli_req->mid; - state->seqnum = cli_req->seqnum; - } else { - uint16_t num_bytes = talloc_get_size(bytes); - /* - * Secondary request, we have to fix up the mid. Thus we do - * the chain_cork/chain/uncork ourselves. - */ - if (!cli_chain_cork(state->cli, state->ev, - wct * sizeof(uint16_t) + num_bytes + 3)) { - goto fail; - } - result = cli_request_send(mem_ctx, state->ev, state->cli, cmd, - 0, wct, vwv, 0, num_bytes, bytes); - if (result == NULL) { - goto fail; - } - cli_req = talloc_get_type_abort(result->private_data, - struct cli_request); - cli_req->recv_helper.fn = cli_trans_recv_helper; - cli_req->recv_helper.priv = state; - cli_req->mid = state->mid; - cli_chain_uncork(state->cli); - state->seqnum = cli_req->seqnum; - } - - fail: - TALLOC_FREE(frame); - return result; + *pwct = wct; + *piov_count = iov - state->iov; } -static void cli_trans_ship_rest(struct async_req *req, - struct cli_trans_state *state) +static void cli_trans_done(struct tevent_req *subreq); + +struct tevent_req *cli_trans_send( + TALLOC_CTX *mem_ctx, struct event_context *ev, + struct cli_state *cli, uint8_t cmd, + const char *pipe_name, uint16_t fid, uint16_t function, int flags, + uint16_t *setup, uint8_t num_setup, uint8_t max_setup, + uint8_t *param, uint32_t num_param, uint32_t max_param, + uint8_t *data, uint32_t num_data, uint32_t max_data) { - struct cli_request *cli_req; + struct tevent_req *req, *subreq; + struct cli_trans_state *state; + int iov_count; + uint8_t wct; - state->secondary_request_ctx = talloc_new(state); - if (state->secondary_request_ctx == NULL) { - async_req_nterror(req, NT_STATUS_NO_MEMORY); - return; + req = tevent_req_create(mem_ctx, &state, struct cli_trans_state); + if (req == NULL) { + return NULL; } - while ((state->param_sent < state->num_param) - || (state->data_sent < state->num_data)) { - struct async_req *subreq; - - subreq = cli_ship_trans(state->secondary_request_ctx, state); - if (subreq == NULL) { - async_req_nterror(req, NT_STATUS_NO_MEMORY); - return; + if ((cmd == SMBtrans) || (cmd == SMBtrans2)) { + if ((num_param > 0xffff) || (max_param > 0xffff) + || (num_data > 0xffff) || (max_data > 0xffff)) { + DEBUG(3, ("Attempt to send invalid trans2 request " + "(setup %u, params %u/%u, data %u/%u)\n", + (unsigned)num_setup, + (unsigned)num_param, (unsigned)max_param, + (unsigned)num_data, (unsigned)max_data)); + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); } } - cli_req = talloc_get_type_abort(req->private_data, - struct cli_request); - - cli_req->seqnum = state->seqnum; -} - -static NTSTATUS cli_pull_trans(uint8_t *inbuf, - uint8_t wct, uint16_t *vwv, - uint16_t num_bytes, uint8_t *bytes, - uint8_t smb_cmd, bool expect_first_reply, - uint8_t *pnum_setup, uint16_t **psetup, - uint32_t *ptotal_param, uint32_t *pnum_param, - uint32_t *pparam_disp, uint8_t **pparam, - uint32_t *ptotal_data, uint32_t *pnum_data, - uint32_t *pdata_disp, uint8_t **pdata) -{ - uint32_t param_ofs, data_ofs; + /* + * The largest wct will be for nttrans (19+num_setup). Make sure we + * don't overflow state->vwv in cli_trans_format. + */ - if (expect_first_reply) { - if ((wct != 0) || (num_bytes != 0)) { - return NT_STATUS_INVALID_NETWORK_RESPONSE; - } - return NT_STATUS_OK; + if ((num_setup + 19) > ARRAY_SIZE(state->vwv)) { + tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); + return tevent_req_post(req, ev); } - switch (smb_cmd) { - case SMBtrans: - case SMBtrans2: - if (wct < 10) { - return NT_STATUS_INVALID_NETWORK_RESPONSE; - } - *ptotal_param = SVAL(vwv + 0, 0); - *ptotal_data = SVAL(vwv + 1, 0); - *pnum_param = SVAL(vwv + 3, 0); - param_ofs = SVAL(vwv + 4, 0); - *pparam_disp = SVAL(vwv + 5, 0); - *pnum_data = SVAL(vwv + 6, 0); - data_ofs = SVAL(vwv + 7, 0); - *pdata_disp = SVAL(vwv + 8, 0); - *pnum_setup = CVAL(vwv + 9, 0); - if (wct < 10 + (*pnum_setup)) { - return NT_STATUS_INVALID_NETWORK_RESPONSE; - } - *psetup = vwv + 10; - - break; - case SMBnttrans: - if (wct < 18) { - return NT_STATUS_INVALID_NETWORK_RESPONSE; - } - *ptotal_param = IVAL(vwv, 3); - *ptotal_data = IVAL(vwv, 7); - *pnum_param = IVAL(vwv, 11); - param_ofs = IVAL(vwv, 15); - *pparam_disp = IVAL(vwv, 19); - *pnum_data = IVAL(vwv, 23); - data_ofs = IVAL(vwv, 27); - *pdata_disp = IVAL(vwv, 31); - *pnum_setup = CVAL(vwv, 35); - *psetup = vwv + 18; - break; + state->cli = cli; + state->ev = ev; + state->cmd = cmd; + state->flags = flags; + state->num_rsetup = 0; + state->rsetup = NULL; + ZERO_STRUCT(state->rparam); + ZERO_STRUCT(state->rdata); - default: - return NT_STATUS_INTERNAL_ERROR; + if ((pipe_name != NULL) + && (!convert_string_allocate(state, CH_UNIX, + cli_ucs2(cli) ? CH_UTF16LE : CH_DOS, + pipe_name, strlen(pipe_name) + 1, + &state->pipe_name_conv, + &state->pipe_name_conv_len, true))) { + tevent_req_nterror(req, NT_STATUS_NO_MEMORY); + return tevent_req_post(req, ev); } + state->fid = fid; /* trans2 */ + state->function = function; /* nttrans */ - /* - * Check for buffer overflows. data_ofs needs to be checked against - * the incoming buffer length, data_disp against the total - * length. Likewise for param_ofs/param_disp. - */ - - if (trans_oob(smb_len(inbuf), param_ofs, *pnum_param) - || trans_oob(*ptotal_param, *pparam_disp, *pnum_param) - || trans_oob(smb_len(inbuf), data_ofs, *pnum_data) - || trans_oob(*ptotal_data, *pdata_disp, *pnum_data)) { - return NT_STATUS_INVALID_NETWORK_RESPONSE; - } + state->setup = setup; + state->num_setup = num_setup; + state->max_setup = max_setup; - *pparam = (uint8_t *)inbuf + 4 + param_ofs; - *pdata = (uint8_t *)inbuf + 4 + data_ofs; + state->param = param; + state->num_param = num_param; + state->param_sent = 0; + state->rparam.max = max_param; - return NT_STATUS_OK; -} + state->data = data; + state->num_data = num_data; + state->data_sent = 0; + state->rdata.max = max_data; -static NTSTATUS cli_trans_pull_blob(TALLOC_CTX *mem_ctx, - struct trans_recvblob *blob, - uint32_t total, uint32_t thistime, - uint8_t *buf, uint32_t displacement) -{ - if (blob->data == NULL) { - if (total > blob->max) { - return NT_STATUS_INVALID_NETWORK_RESPONSE; - } - blob->total = total; - blob->data = TALLOC_ARRAY(mem_ctx, uint8_t, total); - if (blob->data == NULL) { - return NT_STATUS_NO_MEMORY; - } - } + cli_trans_format(state, &wct, &iov_count); - if (total > blob->total) { - return NT_STATUS_INVALID_NETWORK_RESPONSE; + subreq = cli_smb_req_create(state, ev, cli, cmd, 0, wct, state->vwv, + iov_count, state->iov); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); } - - if (thistime) { - memcpy(blob->data + displacement, buf, thistime); - blob->received += thistime; + state->mid = cli_smb_req_mid(subreq); + if (!cli_smb_req_send(subreq)) { + tevent_req_nterror(req, NT_STATUS_NO_MEMORY); + return tevent_req_post(req, state->ev); } - - return NT_STATUS_OK; + cli_state_seqnum_persistent(cli, state->mid); + tevent_req_set_callback(subreq, cli_trans_done, req); + return req; } -static void cli_trans_recv_helper(struct async_req *req) +static void cli_trans_done(struct tevent_req *subreq) { - struct cli_request *cli_req = talloc_get_type_abort( - req->private_data, struct cli_request); - struct cli_trans_state *state = talloc_get_type_abort( - cli_req->recv_helper.priv, struct cli_trans_state); + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct cli_trans_state *state = tevent_req_data( + req, struct cli_trans_state); + NTSTATUS status; + bool sent_all; uint8_t wct; uint16_t *vwv; - uint16_t num_bytes; + uint32_t num_bytes; uint8_t *bytes; uint8_t num_setup = 0; uint16_t *setup = NULL; @@ -1111,13 +1114,8 @@ static void cli_trans_recv_helper(struct async_req *req) uint32_t data_disp = 0; uint8_t *param = NULL; uint8_t *data = NULL; - bool sent_all; - NTSTATUS status; - - sent_all = (state->param_sent == state->num_param) - && (state->data_sent == state->num_data); - status = cli_pull_reply(req, &wct, &vwv, &num_bytes, &bytes); + status = cli_smb_recv(subreq, 0, &wct, &vwv, &num_bytes, &bytes); /* * We can receive something like STATUS_MORE_ENTRIES, so don't use @@ -1125,46 +1123,43 @@ static void cli_trans_recv_helper(struct async_req *req) */ if (NT_STATUS_IS_ERR(status)) { - async_req_nterror(req, status); - return; + goto fail; } + sent_all = ((state->param_sent == state->num_param) + && (state->data_sent == state->num_data)); + status = cli_pull_trans( - (uint8_t *)cli_req->inbuf, wct, vwv, num_bytes, bytes, + cli_smb_inbuf(subreq), wct, vwv, num_bytes, bytes, state->cmd, !sent_all, &num_setup, &setup, &total_param, &num_param, ¶m_disp, ¶m, &total_data, &num_data, &data_disp, &data); - /* - * We can receive something like STATUS_MORE_ENTRIES, so don't use - * !NT_STATUS_IS_OK(status) here. - */ - - if (NT_STATUS_IS_ERR(status)) { - async_req_nterror(req, status); - return; + if (!NT_STATUS_IS_OK(status)) { + goto fail; } if (!sent_all) { - cli_trans_ship_rest(req, state); - return; - } + int iov_count; - /* - * We've just received a real response. This means that we don't need - * the secondary cli_request structures anymore, they have all been - * shipped to the server. - */ - TALLOC_FREE(state->secondary_request_ctx); + TALLOC_FREE(subreq); - if (num_setup != 0) { - TALLOC_FREE(state->rsetup); - state->rsetup = (uint16_t *)TALLOC_MEMDUP( - state, setup, sizeof(uint16_t) * num_setup); - if (state->rsetup == NULL) { - async_req_nterror(req, NT_STATUS_NO_MEMORY); + cli_trans_format(state, &wct, &iov_count); + + subreq = cli_smb_req_create(state, state->ev, state->cli, + state->cmd + 1, 0, wct, state->vwv, + iov_count, state->iov); + if (tevent_req_nomem(subreq, req)) { return; } + cli_smb_req_set_mid(subreq, state->mid); + + if (!cli_smb_req_send(subreq)) { + status = NT_STATUS_NO_MEMORY; + goto fail; + } + tevent_req_set_callback(subreq, cli_trans_done, req); + return; } status = cli_trans_pull_blob( @@ -1173,8 +1168,7 @@ static void cli_trans_recv_helper(struct async_req *req) if (!NT_STATUS_IS_OK(status)) { DEBUG(10, ("Pulling params failed: %s\n", nt_errstr(status))); - async_req_nterror(req, status); - return; + goto fail; } status = cli_trans_pull_blob( @@ -1183,149 +1177,39 @@ static void cli_trans_recv_helper(struct async_req *req) if (!NT_STATUS_IS_OK(status)) { DEBUG(10, ("Pulling data failed: %s\n", nt_errstr(status))); - async_req_nterror(req, status); - return; + goto fail; } if ((state->rparam.total == state->rparam.received) && (state->rdata.total == state->rdata.received)) { - async_req_done(req); - } -} - -struct async_req *cli_trans_send( - TALLOC_CTX *mem_ctx, struct event_context *ev, - struct cli_state *cli, uint8_t trans_cmd, - const char *pipe_name, uint16_t fid, uint16_t function, int flags, - uint16_t *setup, uint8_t num_setup, uint8_t max_setup, - uint8_t *param, uint32_t num_param, uint32_t max_param, - uint8_t *data, uint32_t num_data, uint32_t max_data) -{ - struct async_req *req; - struct cli_request *cli_req; - struct cli_trans_state *state; - - /* - * We can't use it in a chained request chain, we'd get the offset - * calculations wrong. - */ - - if (cli_in_chain(cli)) { - return NULL; - } - - if ((trans_cmd == SMBtrans) || (trans_cmd == SMBtrans2)) { - if ((num_param > 0xffff) || (max_param > 0xffff) - || (num_data > 0xffff) || (max_data > 0xffff)) { - DEBUG(3, ("Attempt to send invalid trans2 request " - "(setup %u, params %u/%u, data %u/%u)\n", - (unsigned)num_setup, - (unsigned)num_param, (unsigned)max_param, - (unsigned)num_data, (unsigned)max_data)); - return NULL; - } - } - - state = talloc(mem_ctx, struct cli_trans_state); - if (state == NULL) { - goto nomem; - } - - state->cli = cli; - state->ev = ev; - state->cmd = trans_cmd; - state->num_rsetup = 0; - state->rsetup = NULL; - ZERO_STRUCT(state->rparam); - ZERO_STRUCT(state->rdata); - state->secondary_request_ctx = NULL; - - if (trans_cmd == SMBtrans) { - state->pipe_name = talloc_strdup(state, pipe_name); - if (state->pipe_name == NULL) { - goto nomem; - } - } - if (trans_cmd == SMBtrans2) { - state->fid = fid; - } - if (trans_cmd == SMBnttrans) { - state->function = function; - } - - state->flags = flags; - - if (setup != NULL) { - state->setup = (uint16_t *)TALLOC_MEMDUP( - state, setup, sizeof(*setup) * num_setup); - if (state->setup == NULL) { - goto nomem; - } - state->num_setup = num_setup; - } else { - state->setup = NULL; - state->num_setup = 0; - } - - state->max_setup = max_setup; - - if (param != NULL) { - state->param = (uint8_t *)TALLOC_MEMDUP(state, param, - num_param); - if (state->param == NULL) { - goto nomem; - } - state->num_param = num_param; - } else { - state->param = NULL; - state->num_param = 0; - } - - state->param_sent = 0; - state->rparam.max = max_param; - - if (data != NULL) { - state->data = (uint8_t *)TALLOC_MEMDUP(state, data, num_data); - if (state->data == NULL) { - goto nomem; - } - state->num_data = num_data; - } else { - state->data = NULL; - state->num_data = 0; + TALLOC_FREE(subreq); + cli_state_seqnum_remove(state->cli, state->mid); + tevent_req_done(req); + return; } - state->data_sent = 0; - state->rdata.max = max_data; - - req = cli_ship_trans(state, state); - if (req == NULL) { - goto nomem; + if (!cli_smb_req_set_pending(subreq)) { + status = NT_STATUS_NO_MEMORY; + goto fail; } + return; - cli_req = talloc_get_type_abort(req->private_data, struct cli_request); - cli_req->recv_helper.fn = cli_trans_recv_helper; - cli_req->recv_helper.priv = state; - - return req; - - nomem: - TALLOC_FREE(state); - return NULL; + fail: + cli_state_seqnum_remove(state->cli, state->mid); + TALLOC_FREE(subreq); + tevent_req_nterror(req, status); } -NTSTATUS cli_trans_recv(struct async_req *req, TALLOC_CTX *mem_ctx, +NTSTATUS cli_trans_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx, uint16_t **setup, uint8_t *num_setup, uint8_t **param, uint32_t *num_param, uint8_t **data, uint32_t *num_data) { - struct cli_request *cli_req = talloc_get_type_abort( - req->private_data, struct cli_request); - struct cli_trans_state *state = talloc_get_type_abort( - cli_req->recv_helper.priv, struct cli_trans_state); + struct cli_trans_state *state = tevent_req_data( + req, struct cli_trans_state); NTSTATUS status; - if (async_req_is_nterror(req, &status)) { + if (tevent_req_is_nterror(req, &status)) { return status; } @@ -1366,19 +1250,20 @@ NTSTATUS cli_trans(TALLOC_CTX *mem_ctx, struct cli_state *cli, { TALLOC_CTX *frame = talloc_stackframe(); struct event_context *ev; - struct async_req *req; - NTSTATUS status = NT_STATUS_NO_MEMORY; + struct tevent_req *req; + NTSTATUS status = NT_STATUS_OK; - if (cli->fd_event != NULL) { + if (cli_has_async_calls(cli)) { /* * Can't use sync call while an async call is in flight */ - cli_set_error(cli, NT_STATUS_INVALID_PARAMETER); + status = NT_STATUS_INVALID_PARAMETER; goto fail; } ev = event_context_init(frame); if (ev == NULL) { + status = NT_STATUS_NO_MEMORY; goto fail; } @@ -1388,16 +1273,21 @@ NTSTATUS cli_trans(TALLOC_CTX *mem_ctx, struct cli_state *cli, param, num_param, max_param, data, num_data, max_data); if (req == NULL) { + status = NT_STATUS_NO_MEMORY; goto fail; } - while (req->state < ASYNC_REQ_DONE) { - event_loop_once(ev); + if (!tevent_req_poll(req, ev)) { + status = map_nt_error_from_unix(errno); + goto fail; } status = cli_trans_recv(req, mem_ctx, rsetup, num_rsetup, rparam, num_rparam, rdata, num_rdata); fail: TALLOC_FREE(frame); + if (!NT_STATUS_IS_OK(status)) { + cli_set_error(cli, status); + } return status; } |