diff options
Diffstat (limited to 'source3/libsmb')
-rw-r--r-- | source3/libsmb/cliconnect.c | 147 |
1 files changed, 97 insertions, 50 deletions
diff --git a/source3/libsmb/cliconnect.c b/source3/libsmb/cliconnect.c index f34b38106a..b5287774f5 100644 --- a/source3/libsmb/cliconnect.c +++ b/source3/libsmb/cliconnect.c @@ -1241,59 +1241,69 @@ void cli_negprot_sendsync(struct cli_state *cli) Send a negprot command. ****************************************************************************/ -NTSTATUS cli_negprot(struct cli_state *cli) +struct async_req *cli_negprot_send(TALLOC_CTX *mem_ctx, + struct event_context *ev, + struct cli_state *cli) { - char *p; + struct async_req *result; + uint8_t *bytes = NULL; int numprots; - int plength; if (cli->protocol < PROTOCOL_NT1) cli->use_spnego = False; - memset(cli->outbuf,'\0',smb_size); - - plength = 0; - /* setup the protocol strings */ for (numprots=0; numprots < ARRAY_SIZE(prots); numprots++) { + uint8_t c = 2; if (prots[numprots].prot > cli->protocol) { break; } - plength += strlen(prots[numprots].name)+2; - } - - cli_set_message(cli->outbuf,0,plength,True); - - p = smb_buf(cli->outbuf); - for (numprots=0; numprots < ARRAY_SIZE(prots); numprots++) { - if (prots[numprots].prot > cli->protocol) { - break; + bytes = (uint8_t *)talloc_append_blob( + talloc_tos(), bytes, data_blob_const(&c, sizeof(c))); + if (bytes == NULL) { + return NULL; + } + bytes = smb_bytes_push_str(bytes, false, prots[numprots].name); + if (bytes == NULL) { + return NULL; } - *p++ = 2; - p += clistr_push(cli, p, prots[numprots].name, -1, STR_TERMINATE); } - SCVAL(cli->outbuf,smb_com,SMBnegprot); - cli_setup_packet(cli); + result = cli_request_send(mem_ctx, ev, cli, SMBnegprot, 0, 0, NULL, + talloc_get_size(bytes), bytes); + TALLOC_FREE(bytes); + return result; +} - SCVAL(smb_buf(cli->outbuf),0,2); +NTSTATUS cli_negprot_recv(struct async_req *req) +{ + struct cli_request *cli_req = talloc_get_type_abort( + req->private_data, struct cli_request); + struct cli_state *cli = cli_req->cli; + uint8_t wct; + uint16_t *vwv; + uint16_t num_bytes; + uint8_t *bytes; + NTSTATUS status; + uint16_t protnum; - cli_send_smb(cli); - if (!cli_receive_smb(cli)) { - return NT_STATUS_UNEXPECTED_IO_ERROR; + if (async_req_is_error(req, &status)) { + return status; } - show_msg(cli->inbuf); - - if (cli_is_error(cli)) { - return cli_nt_error(cli); + status = cli_pull_reply(req, &wct, &vwv, &num_bytes, &bytes); + if (!NT_STATUS_IS_OK(status)) { + return status; } - if ((int)SVAL(cli->inbuf,smb_vwv0) >= numprots) { + protnum = SVAL(vwv, 0); + + if ((protnum >= ARRAY_SIZE(prots)) + || (prots[protnum].prot > cli_req->cli->protocol)) { return NT_STATUS_INVALID_NETWORK_RESPONSE; } - cli->protocol = prots[SVAL(cli->inbuf,smb_vwv0)].prot; + cli->protocol = prots[protnum].prot; if ((cli->protocol < PROTOCOL_NT1) && cli->sign_info.mandatory_signing) { DEBUG(0,("cli_negprot: SMB signing is mandatory and the selected protocol level doesn't support it.\n")); @@ -1303,17 +1313,17 @@ NTSTATUS cli_negprot(struct cli_state *cli) if (cli->protocol >= PROTOCOL_NT1) { struct timespec ts; /* NT protocol */ - cli->sec_mode = CVAL(cli->inbuf,smb_vwv1); - cli->max_mux = SVAL(cli->inbuf, smb_vwv1+1); - cli->max_xmit = IVAL(cli->inbuf,smb_vwv3+1); - cli->sesskey = IVAL(cli->inbuf,smb_vwv7+1); - cli->serverzone = SVALS(cli->inbuf,smb_vwv15+1); + cli->sec_mode = CVAL(vwv + 1, 0); + cli->max_mux = SVAL(vwv + 1, 1); + cli->max_xmit = IVAL(vwv + 3, 1); + cli->sesskey = IVAL(vwv + 7, 1); + cli->serverzone = SVALS(vwv + 15, 1); cli->serverzone *= 60; /* this time arrives in real GMT */ - ts = interpret_long_date(cli->inbuf+smb_vwv11+1); + ts = interpret_long_date(((char *)(vwv+11))+1); cli->servertime = ts.tv_sec; - cli->secblob = data_blob(smb_buf(cli->inbuf),smb_buflen(cli->inbuf)); - cli->capabilities = IVAL(cli->inbuf,smb_vwv9+1); + cli->secblob = data_blob(bytes, num_bytes); + cli->capabilities = IVAL(vwv + 9, 1); if (cli->capabilities & CAP_RAW_MODE) { cli->readbraw_supported = True; cli->writebraw_supported = True; @@ -1321,9 +1331,10 @@ NTSTATUS cli_negprot(struct cli_state *cli) /* work out if they sent us a workgroup */ if (!(cli->capabilities & CAP_EXTENDED_SECURITY) && smb_buflen(cli->inbuf) > 8) { - clistr_pull(cli, cli->server_domain, - smb_buf(cli->inbuf)+8, sizeof(cli->server_domain), - smb_buflen(cli->inbuf)-8, STR_UNICODE|STR_NOALIGN); + clistr_pull(cli, cli->server_domain, + bytes+8, sizeof(cli->server_domain), + num_bytes-8, + STR_UNICODE|STR_NOALIGN); } /* @@ -1361,17 +1372,18 @@ NTSTATUS cli_negprot(struct cli_state *cli) } else if (cli->protocol >= PROTOCOL_LANMAN1) { cli->use_spnego = False; - cli->sec_mode = SVAL(cli->inbuf,smb_vwv1); - cli->max_xmit = SVAL(cli->inbuf,smb_vwv2); - cli->max_mux = SVAL(cli->inbuf, smb_vwv3); - cli->sesskey = IVAL(cli->inbuf,smb_vwv6); - cli->serverzone = SVALS(cli->inbuf,smb_vwv10); + cli->sec_mode = SVAL(vwv + 1, 0); + cli->max_xmit = SVAL(vwv + 2, 0); + cli->max_mux = SVAL(vwv + 3, 0); + cli->sesskey = IVAL(vwv + 6, 0); + cli->serverzone = SVALS(vwv + 10, 0); cli->serverzone *= 60; /* this time is converted to GMT by make_unix_date */ - cli->servertime = cli_make_unix_date(cli,cli->inbuf+smb_vwv8); - cli->readbraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x1) != 0); - cli->writebraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x2) != 0); - cli->secblob = data_blob(smb_buf(cli->inbuf),smb_buflen(cli->inbuf)); + cli->servertime = cli_make_unix_date( + cli, (char *)(vwv + 8)); + cli->readbraw_supported = ((SVAL(vwv + 5, 0) & 0x1) != 0); + cli->writebraw_supported = ((SVAL(vwv + 5, 0) & 0x2) != 0); + cli->secblob = data_blob(bytes, num_bytes); } else { /* the old core protocol */ cli->use_spnego = False; @@ -1388,6 +1400,41 @@ NTSTATUS cli_negprot(struct cli_state *cli) return NT_STATUS_OK; } +NTSTATUS cli_negprot(struct cli_state *cli) +{ + TALLOC_CTX *frame = talloc_stackframe(); + struct event_context *ev; + struct async_req *req; + NTSTATUS status = NT_STATUS_NO_MEMORY; + + if (cli->fd_event != NULL) { + /* + * Can't use sync call while an async call is in flight + */ + cli_set_error(cli, NT_STATUS_INVALID_PARAMETER); + goto fail; + } + + ev = event_context_init(frame); + if (ev == NULL) { + goto fail; + } + + req = cli_negprot_send(frame, ev, cli); + if (req == NULL) { + goto fail; + } + + while (req->state < ASYNC_REQ_DONE) { + event_loop_once(ev); + } + + status = cli_negprot_recv(req); + fail: + TALLOC_FREE(frame); + return status; +} + /**************************************************************************** Send a session request. See rfc1002.txt 4.3 and 4.3.2. ****************************************************************************/ |