diff options
| -rw-r--r-- | source4/include/structs.h | 13 | ||||
| -rw-r--r-- | source4/smb_server/config.mk | 5 | ||||
| -rw-r--r-- | source4/smb_server/smb2/config.mk | 14 | ||||
| -rw-r--r-- | source4/smb_server/smb2/fileio.c | 74 | ||||
| -rw-r--r-- | source4/smb_server/smb2/negprot.c | 177 | ||||
| -rw-r--r-- | source4/smb_server/smb2/receive.c | 269 | ||||
| -rw-r--r-- | source4/smb_server/smb2/sesssetup.c | 185 | ||||
| -rw-r--r-- | source4/smb_server/smb2/smb2_server.h | 50 | ||||
| -rw-r--r-- | source4/smb_server/smb2/tcon.c | 34 | ||||
| -rw-r--r-- | source4/smb_server/smb_server.c | 7 |
10 files changed, 823 insertions, 5 deletions
diff --git a/source4/include/structs.h b/source4/include/structs.h index 7a546f9056..68f7f9af14 100644 --- a/source4/include/structs.h +++ b/source4/include/structs.h @@ -146,14 +146,19 @@ struct reg_diff_file; struct rap_NetShareEnum; struct rap_NetServerEnum2; -struct smbsrv_request; -struct smbsrv_tcon; -struct smb_signing_context; -struct smbsrv_connection; struct auth_context; struct auth_method_context; + +struct smb_signing_context; + +struct smbsrv_session; +struct smbsrv_tcon; +struct smbsrv_connection; + +struct smbsrv_request; struct request_buffer; +struct smb2srv_request; struct smb2_request_buffer; struct ntvfs_context; diff --git a/source4/smb_server/config.mk b/source4/smb_server/config.mk index 1dd2632890..192692df5b 100644 --- a/source4/smb_server/config.mk +++ b/source4/smb_server/config.mk @@ -10,8 +10,11 @@ ADD_OBJ_FILES = \ session.o \ management.o REQUIRED_SUBSYSTEMS = \ - LIBPACKET SMB_PROTOCOL + LIBPACKET \ + SMB_PROTOCOL \ + SMB2_PROTOCOL # End SUBSYSTEM SMB ####################### include smb/config.mk +include smb2/config.mk diff --git a/source4/smb_server/smb2/config.mk b/source4/smb_server/smb2/config.mk new file mode 100644 index 0000000000..105b646e31 --- /dev/null +++ b/source4/smb_server/smb2/config.mk @@ -0,0 +1,14 @@ +####################### +# Start SUBSYSTEM SMB2_PROTOCOL +[SUBSYSTEM::SMB2_PROTOCOL] +INIT_OBJ_FILES = \ + receive.o +ADD_OBJ_FILES = \ + negprot.o \ + sesssetup.o \ + tcon.o \ + fileio.o +REQUIRED_SUBSYSTEMS = \ + NTVFS LIBPACKET LIBCLI_SMB2 +# End SUBSYSTEM SMB2_PROTOCOL +####################### diff --git a/source4/smb_server/smb2/fileio.c b/source4/smb_server/smb2/fileio.c new file mode 100644 index 0000000000..63b02de2c6 --- /dev/null +++ b/source4/smb_server/smb2/fileio.c @@ -0,0 +1,74 @@ +/* + Unix SMB2 implementation. + + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "libcli/smb2/smb2.h" +#include "libcli/smb2/smb2_calls.h" +#include "smb_server/smb2/smb2_server.h" + +void smb2srv_create_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_close_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_read_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_write_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_cancel_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_find_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_notify_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_getinfo_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_setinfo_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_break_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} diff --git a/source4/smb_server/smb2/negprot.c b/source4/smb_server/smb2/negprot.c new file mode 100644 index 0000000000..630f38b159 --- /dev/null +++ b/source4/smb_server/smb2/negprot.c @@ -0,0 +1,177 @@ +/* + Unix SMB2 implementation. + + Copyright (C) Andrew Bartlett 2001-2005 + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "auth/auth.h" +#include "libcli/smb2/smb2.h" +#include "libcli/smb2/smb2_calls.h" +#include "smb_server/smb_server.h" +#include "smb_server/smb2/smb2_server.h" +#include "smbd/service_stream.h" + +static NTSTATUS smb2srv_negprot_secblob(struct smb2srv_request *req, DATA_BLOB *_blob) +{ + struct gensec_security *gensec_security; + DATA_BLOB null_data_blob = data_blob(NULL, 0); + DATA_BLOB blob; + NTSTATUS nt_status; + struct cli_credentials *server_credentials; + + nt_status = gensec_server_start(req, &gensec_security, + req->smb_conn->connection->event.ctx); + if (!NT_STATUS_IS_OK(nt_status)) { + DEBUG(0, ("Failed to start GENSEC: %s\n", nt_errstr(nt_status))); + smbsrv_terminate_connection(req->smb_conn, "Failed to start GENSEC\n"); + return nt_status; + } + + server_credentials = cli_credentials_init(req); + if (!server_credentials) { + smbsrv_terminate_connection(req->smb_conn, "Failed to init server credentials\n"); + return NT_STATUS_NO_MEMORY; + } + + cli_credentials_set_conf(server_credentials); + nt_status = cli_credentials_set_machine_account(server_credentials); + if (!NT_STATUS_IS_OK(nt_status)) { + DEBUG(10, ("Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(nt_status))); + talloc_free(server_credentials); + server_credentials = NULL; + } + + req->smb_conn->negotiate.server_credentials = talloc_steal(req->smb_conn, server_credentials); + + gensec_set_target_service(gensec_security, "cifs"); + + gensec_set_credentials(gensec_security, server_credentials); + + nt_status = gensec_start_mech_by_oid(gensec_security, GENSEC_OID_SPNEGO); + if (!NT_STATUS_IS_OK(nt_status)) { + DEBUG(0, ("Failed to start SPNEGO: %s\n", nt_errstr(nt_status))); + smbsrv_terminate_connection(req->smb_conn, "Failed to start SPNEGO\n"); + return nt_status; + } + + nt_status = gensec_update(gensec_security, req, null_data_blob, &blob); + if (!NT_STATUS_IS_OK(nt_status) && !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) { + DEBUG(0, ("Failed to get SPNEGO to give us the first token: %s\n", nt_errstr(nt_status))); + smbsrv_terminate_connection(req->smb_conn, "Failed to start SPNEGO - no first token\n"); + return nt_status; + } + + *_blob = blob; + return NT_STATUS_OK; +} + +static NTSTATUS smb2srv_negprot_backend(struct smb2srv_request *req, struct smb2_negprot *io) +{ + NTSTATUS status; + struct timeval current_time; + struct timeval boot_time; + + current_time = timeval_current(); /* TODO: handle timezone?! */ + boot_time = timeval_current(); /* TODO: fix me */ + + io->out._pad = 0; + io->out.unknown2 = 0x06; + ZERO_STRUCT(io->out.sessid); + io->out.unknown3 = 0x0d; + io->out.unknown4 = 0x00; + io->out.unknown5 = 0x01; + io->out.unknown6 = 0x01; + io->out.unknown7 = 0x01; + io->out.current_time = timeval_to_nttime(¤t_time); + io->out.boot_time = timeval_to_nttime(&boot_time); + status = smb2srv_negprot_secblob(req, &io->out.secblob); + NT_STATUS_NOT_OK_RETURN(status); + io->out.unknown9 = 0x204d4c20; + + return NT_STATUS_OK; +} + +static void smb2srv_negprot_send(struct smb2srv_request *req, struct smb2_negprot *io) +{ + NTSTATUS status; + + if (NT_STATUS_IS_ERR(req->status)) { + smb2srv_send_error(req, req->status); /* TODO: is this correct? */ + return; + } + + status = smb2srv_setup_reply(req, 0x40, io->out.secblob.length); + if (!NT_STATUS_IS_OK(status)) { + smbsrv_terminate_connection(req->smb_conn, nt_errstr(status)); + talloc_free(req); + return; + } + + SIVAL(req->out.hdr, SMB2_HDR_STATUS, NT_STATUS_V(req->status)); + + SSVAL(req->out.body, 0x02, io->out._pad); + SIVAL(req->out.body, 0x04, io->out.unknown2); + memcpy(req->out.body+0x08, io->out.sessid, 16); + SIVAL(req->out.body, 0x18, io->out.unknown3); + SSVAL(req->out.body, 0x1C, io->out.unknown4); + SIVAL(req->out.body, 0x1E, io->out.unknown5); + SIVAL(req->out.body, 0x22, io->out.unknown6); + SSVAL(req->out.body, 0x26, io->out.unknown7); + push_nttime(req->out.body, 0x28, io->out.current_time); + push_nttime(req->out.body, 0x30, io->out.boot_time); + status = smb2_push_o16s16_blob(&req->out, 0x38, io->out.secblob); + if (!NT_STATUS_IS_OK(status)) { + smbsrv_terminate_connection(req->smb_conn, nt_errstr(status)); + talloc_free(req); + return; + } + + SIVAL(req->out.body, 0x3C, io->out.unknown9); + + smb2srv_send_reply(req); +} + +void smb2srv_negprot_recv(struct smb2srv_request *req) +{ + struct smb2_negprot *io; + + if (req->in.body_size < 0x26) { + smb2srv_send_error(req, NT_STATUS_FOOBAR); + return; + } + + io = talloc(req, struct smb2_negprot); + if (!io) { + smbsrv_terminate_connection(req->smb_conn, nt_errstr(NT_STATUS_NO_MEMORY)); + talloc_free(req); + return; + } + + io->in.unknown1 = SVAL(req->in.body, 0x02); + memcpy(io->in.unknown2, req->in.body + 0x04, 0x20); + io->in.unknown3 = SVAL(req->in.body, 0x24); + + req->status = smb2srv_negprot_backend(req, io); + + if (req->control_flags & SMB2SRV_REQ_CTRL_FLAG_NOT_REPLY) { + talloc_free(req); + return; + } + smb2srv_negprot_send(req, io); +} diff --git a/source4/smb_server/smb2/receive.c b/source4/smb_server/smb2/receive.c new file mode 100644 index 0000000000..87b480ee64 --- /dev/null +++ b/source4/smb_server/smb2/receive.c @@ -0,0 +1,269 @@ +/* + Unix SMB2 implementation. + + Copyright (C) Andrew Tridgell 2005 + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "system/time.h" +#include "smbd/service_stream.h" +#include "libcli/smb2/smb2.h" +#include "smb_server/smb_server.h" +#include "smb_server/smb2/smb2_server.h" +#include "lib/stream/packet.h" + + +static struct smb2srv_request *smb2srv_init_request(struct smbsrv_connection *smb_conn) +{ + struct smb2srv_request *req; + + req = talloc_zero(smb_conn, struct smb2srv_request); + if (!req) return NULL; + + req->smb_conn = smb_conn; + + return req; +} + +NTSTATUS smb2srv_setup_reply(struct smb2srv_request *req, uint_t body_fixed_size, uint_t body_dynamic_size) +{ + req->out.size = SMB2_HDR_BODY+NBT_HDR_SIZE+body_fixed_size; + + req->out.allocated = req->out.size + body_dynamic_size; + req->out.buffer = talloc_size(req, req->out.allocated); + NT_STATUS_HAVE_NO_MEMORY(req->out.buffer); + + req->out.hdr = req->out.buffer + NBT_HDR_SIZE; + req->out.body = req->out.hdr + SMB2_HDR_BODY; + req->out.body_size = body_fixed_size; + req->out.dynamic = (body_dynamic_size ? req->out.body + body_fixed_size : NULL); + + SIVAL(req->out.hdr, 0, SMB2_MAGIC); + SSVAL(req->out.hdr, SMB2_HDR_LENGTH, SMB2_HDR_BODY); + SSVAL(req->out.hdr, SMB2_HDR_PAD1, 0); + SIVAL(req->out.hdr, SMB2_HDR_STATUS, 0); + SSVAL(req->out.hdr, SMB2_HDR_OPCODE, SVAL(req->in.hdr, SMB2_HDR_OPCODE)); + SSVAL(req->out.hdr, SMB2_HDR_PAD2, 0); + SIVAL(req->out.hdr, SMB2_HDR_FLAGS, 0x00000001); + SIVAL(req->out.hdr, SMB2_HDR_UNKNOWN, 0); + SBVAL(req->out.hdr, SMB2_HDR_SEQNUM, req->seqnum); + SIVAL(req->out.hdr, SMB2_HDR_PID, IVAL(req->in.hdr, SMB2_HDR_PID)); + SIVAL(req->out.hdr, SMB2_HDR_TID, IVAL(req->in.hdr, SMB2_HDR_TID)); + SBVAL(req->out.hdr, SMB2_HDR_UID, BVAL(req->in.hdr, SMB2_HDR_UID)); + memset(req->out.hdr+SMB2_HDR_SIG, 0, 16); + + /* set the length of the fixed body part and +1 if there's a dynamic part also */ + SSVAL(req->out.body, 0, body_fixed_size + (body_dynamic_size?1:0)); + + /* + * if we have a dynamic part, make sure the first byte + * which is always be part of the packet is initialized + */ + if (body_dynamic_size) { + SCVAL(req->out.dynamic, 0, 0); + } + + return NT_STATUS_OK; +} + +void smb2srv_send_reply(struct smb2srv_request *req) +{ + DATA_BLOB blob; + NTSTATUS status; + + if (req->out.size > NBT_HDR_SIZE) { + _smb_setlen(req->out.buffer, req->out.size - NBT_HDR_SIZE); + } + + blob = data_blob_const(req->out.buffer, req->out.size); + status = packet_send(req->smb_conn->packet, blob); + if (!NT_STATUS_IS_OK(status)) { + smbsrv_terminate_connection(req->smb_conn, nt_errstr(status)); + } + talloc_free(req); +} + +void smb2srv_send_error(struct smb2srv_request *req, NTSTATUS error) +{ + NTSTATUS status; + + status = smb2srv_setup_reply(req, 8, 1); + if (!NT_STATUS_IS_OK(status)) { + smbsrv_terminate_connection(req->smb_conn, nt_errstr(status)); + talloc_free(req); + return; + } + + SIVAL(req->out.hdr, SMB2_HDR_STATUS, NT_STATUS_V(error)); + + SSVAL(req->out.body, 0x02, 0); + SIVAL(req->out.body, 0x04, 0); + + smb2srv_send_reply(req); +} + +static NTSTATUS smb2srv_reply(struct smb2srv_request *req) +{ + uint16_t opcode; + + opcode = SVAL(req->in.hdr, SMB2_HDR_OPCODE); + req->seqnum = BVAL(req->in.hdr, SMB2_HDR_SEQNUM); + + errno = 0; + + switch (opcode) { + case SMB2_OP_NEGPROT: + smb2srv_negprot_recv(req); + return NT_STATUS_OK; + case SMB2_OP_SESSSETUP: + smb2srv_sesssetup_recv(req); + return NT_STATUS_OK; + case SMB2_OP_TCON: + smb2srv_tcon_recv(req); + return NT_STATUS_OK; + case SMB2_OP_TDIS: + smb2srv_tdis_recv(req); + return NT_STATUS_OK; + case SMB2_OP_CREATE: + smb2srv_create_recv(req); + return NT_STATUS_OK; + case SMB2_OP_CLOSE: + smb2srv_close_recv(req); + return NT_STATUS_OK; + case SMB2_OP_READ: + smb2srv_read_recv(req); + return NT_STATUS_OK; + case SMB2_OP_WRITE: + smb2srv_write_recv(req); + return NT_STATUS_OK; + case SMB2_OP_CANCEL: + smb2srv_cancel_recv(req); + return NT_STATUS_OK; + case SMB2_OP_FIND: + smb2srv_find_recv(req); + return NT_STATUS_OK; + case SMB2_OP_NOTIFY: + smb2srv_notify_recv(req); + return NT_STATUS_OK; + case SMB2_OP_GETINFO: + smb2srv_getinfo_recv(req); + return NT_STATUS_OK; + case SMB2_OP_SETINFO: + smb2srv_setinfo_recv(req); + return NT_STATUS_OK; + case SMB2_OP_BREAK: + smb2srv_break_recv(req); + return NT_STATUS_OK; + } + + DEBUG(1,("Invalid SMB2 opcode: 0x%04X\n", opcode)); + smbsrv_terminate_connection(req->smb_conn, "Invalid SMB2 opcode"); + return NT_STATUS_OK; +} + +NTSTATUS smbsrv_recv_smb2_request(void *private, DATA_BLOB blob) +{ + struct smbsrv_connection *smb_conn = talloc_get_type(private, struct smbsrv_connection); + struct smb2srv_request *req; + uint32_t protocol_version; + uint16_t buffer_code; + uint32_t dynamic_size; + + /* see if its a special NBT packet */ + if (CVAL(blob.data,0) != 0) { + DEBUG(2,("Special NBT packet on SMB2 connection")); + smbsrv_terminate_connection(smb_conn, "Special NBT packet on SMB2 connection"); + return NT_STATUS_OK; + } + + if (blob.length < (NBT_HDR_SIZE + SMB2_MIN_SIZE)) { + DEBUG(2,("Invalid SMB2 packet length count %d\n", blob.length)); + smbsrv_terminate_connection(smb_conn, "Invalid SMB2 packet"); + return NT_STATUS_OK; + } + + protocol_version = IVAL(blob.data, NBT_HDR_SIZE); + + if (protocol_version != SMB2_MAGIC) { + DEBUG(2,("Invalid SMB packet: protocl prefix: 0x%08X\n", protocol_version)); + smbsrv_terminate_connection(smb_conn, "NON-SMB2 packet"); + return NT_STATUS_OK; + } + + req = smb2srv_init_request(smb_conn); + NT_STATUS_HAVE_NO_MEMORY(req); + + req->in.buffer = talloc_steal(req, blob.data); + req->in.size = blob.length; + req->request_time = timeval_current(); + req->in.allocated = req->in.size; + + req->in.hdr = req->in.buffer+ NBT_HDR_SIZE; + req->in.body = req->in.hdr + SMB2_HDR_BODY; + req->in.body_size = req->in.size - (SMB2_HDR_BODY+NBT_HDR_SIZE); + req->in.dynamic = NULL; + + buffer_code = SVAL(req->in.body, 0); + dynamic_size = req->in.body_size - (buffer_code & ~1); + + if (dynamic_size != 0 && (buffer_code & 1)) { + req->in.dynamic = req->in.body + (buffer_code & ~1); + if (smb2_oob(&req->in, req->in.dynamic, dynamic_size)) { + DEBUG(1,("SMB2 request invalid dynamic size 0x%x\n", + dynamic_size)); + smb2srv_send_error(req, NT_STATUS_INVALID_PARAMETER); + return NT_STATUS_OK; + } + } + + /* + * TODO: - make sure the length field is 64 + * - make sure it's a request + */ + + return smb2srv_reply(req); +} + +/* + * init the SMB2 protocol related stuff + */ +NTSTATUS smbsrv_init_smb2_connection(struct smbsrv_connection *smb_conn) +{ + NTSTATUS status; + + /* now initialise a few default values associated with this smb socket */ + smb_conn->negotiate.max_send = 0xFFFF; + + /* this is the size that w2k uses, and it appears to be important for + good performance */ + smb_conn->negotiate.max_recv = lp_max_xmit(); + + smb_conn->negotiate.zone_offset = get_time_zone(time(NULL)); + + smb_conn->config.security = SEC_USER; + smb_conn->config.nt_status_support = True; + + status = smbsrv_init_sessions(smb_conn, UINT64_MAX); + NT_STATUS_NOT_OK_RETURN(status); + + status = smbsrv_init_tcons(smb_conn, UINT32_MAX); + NT_STATUS_NOT_OK_RETURN(status); + + return NT_STATUS_OK; + +} diff --git a/source4/smb_server/smb2/sesssetup.c b/source4/smb_server/smb2/sesssetup.c new file mode 100644 index 0000000000..af0c074dac --- /dev/null +++ b/source4/smb_server/smb2/sesssetup.c @@ -0,0 +1,185 @@ +/* + Unix SMB2 implementation. + + Copyright (C) Andrew Bartlett 2001-2005 + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "auth/auth.h" +#include "libcli/smb2/smb2.h" +#include "libcli/smb2/smb2_calls.h" +#include "smb_server/smb_server.h" +#include "smb_server/smb2/smb2_server.h" +#include "smbd/service_stream.h" + +struct smb2srv_session { + struct smb2srv_session *prev,*next; + uint64_t uid; + struct gensec_security *gensec_ctx; + struct auth_session_info *session_info; +}; + +static NTSTATUS smb2srv_sesssetup_backend(struct smb2srv_request *req, struct smb2_session_setup *io) +{ + NTSTATUS status = NT_STATUS_ACCESS_DENIED; + struct smbsrv_session *smb_sess = NULL; + struct auth_session_info *session_info = NULL; + uint64_t vuid; + + io->out._pad = 0; + io->out.uid = 0; + io->out.secblob = data_blob(NULL, 0); + + vuid = BVAL(req->in.hdr, SMB2_HDR_UID); + + /* TODO: we're stricter than the SMB version till we have + * SMB2-CONTEXT test + */ + if (vuid == 0) { + struct gensec_security *gensec_ctx; + + status = gensec_server_start(req, &gensec_ctx, + req->smb_conn->connection->event.ctx); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(1, ("Failed to start GENSEC server code: %s\n", nt_errstr(status))); + return status; + } + + gensec_set_credentials(gensec_ctx, req->smb_conn->negotiate.server_credentials); + + gensec_set_target_service(gensec_ctx, "cifs"); + + gensec_want_feature(gensec_ctx, GENSEC_FEATURE_SESSION_KEY); + + status = gensec_start_mech_by_oid(gensec_ctx, GENSEC_OID_SPNEGO); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(1, ("Failed to start GENSEC SPNEGO server code: %s\n", nt_errstr(status))); + return status; + } + + /* allocate a new session */ + smb_sess = smbsrv_session_new(req->smb_conn, gensec_ctx); + } else { + /* lookup an existing session */ + smb_sess = smbsrv_session_find_sesssetup(req->smb_conn, vuid); + } + + if (!smb_sess) { + return NT_STATUS_ACCESS_DENIED; + } + + if (!smb_sess->gensec_ctx) { + status = NT_STATUS_INTERNAL_ERROR; + DEBUG(1, ("Internal ERROR: no gensec_ctx on session: %s\n", nt_errstr(status))); + goto failed; + } + + status = gensec_update(smb_sess->gensec_ctx, req, io->in.secblob, &io->out.secblob); + if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) { + io->out.uid = smb_sess->vuid; + return status; + } else if (!NT_STATUS_IS_OK(status)) { + goto failed; + } + + status = gensec_session_info(smb_sess->gensec_ctx, &session_info); + if (!NT_STATUS_IS_OK(status)) { + goto failed; + } + + /* Ensure this is marked as a 'real' vuid, not one + * simply valid for the session setup leg */ + status = smbsrv_session_sesssetup_finished(smb_sess, session_info); + if (!NT_STATUS_IS_OK(status)) { + goto failed; + } + req->session = smb_sess; + + io->out.uid = smb_sess->vuid; + return status; + +failed: + talloc_free(smb_sess); + return auth_nt_status_squash(status); +} + +static void smb2srv_sesssetup_send(struct smb2srv_request *req, struct smb2_session_setup *io) +{ + NTSTATUS status; + + if (NT_STATUS_IS_ERR(req->status) && !NT_STATUS_EQUAL(req->status, NT_STATUS_MORE_PROCESSING_REQUIRED)) { + smb2srv_send_error(req, req->status); + return; + } + + status = smb2srv_setup_reply(req, 0x08, io->out.secblob.length); + if (!NT_STATUS_IS_OK(status)) { + smbsrv_terminate_connection(req->smb_conn, nt_errstr(status)); + talloc_free(req); + return; + } + + SIVAL(req->out.hdr, SMB2_HDR_STATUS, NT_STATUS_V(req->status)); + SBVAL(req->out.hdr, SMB2_HDR_UID, io->out.uid); + + SSVAL(req->out.body, 0x02, io->out._pad); + status = smb2_push_o16s16_blob(&req->out, 0x04, io->out.secblob); + if (!NT_STATUS_IS_OK(status)) { + smbsrv_terminate_connection(req->smb_conn, nt_errstr(status)); + talloc_free(req); + return; + } + + smb2srv_send_reply(req); +} + +void smb2srv_sesssetup_recv(struct smb2srv_request *req) +{ + struct smb2_session_setup *io; + NTSTATUS status; + + if (req->in.body_size < 0x10) { + smb2srv_send_error(req, NT_STATUS_FOOBAR); + return; + } + + io = talloc(req, struct smb2_session_setup); + if (!io) { + smbsrv_terminate_connection(req->smb_conn, nt_errstr(NT_STATUS_NO_MEMORY)); + talloc_free(req); + return; + } + + io->in._pad = SVAL(req->in.body, 0x02); + io->in.unknown2 = IVAL(req->in.body, 0x04); + io->in.unknown3 = IVAL(req->in.body, 0x08); + status = smb2_pull_o16s16_blob(&req->in, io, req->in.body+0x0C, &io->in.secblob); + if (!NT_STATUS_IS_OK(status)) { + smbsrv_terminate_connection(req->smb_conn, nt_errstr(status)); + talloc_free(req); + return; + } + + req->status = smb2srv_sesssetup_backend(req, io); + + if (req->control_flags & SMB2SRV_REQ_CTRL_FLAG_NOT_REPLY) { + talloc_free(req); + return; + } + smb2srv_sesssetup_send(req, io); +} diff --git a/source4/smb_server/smb2/smb2_server.h b/source4/smb_server/smb2/smb2_server.h new file mode 100644 index 0000000000..913c7f2eab --- /dev/null +++ b/source4/smb_server/smb2/smb2_server.h @@ -0,0 +1,50 @@ +/* + Unix SMB2 implementation. + + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +/* the context for a single SMB2 request. This is passed to any request-context + functions */ +struct smb2srv_request { + /* the smbsrv_connection needs a list of requests queued for send */ + struct smb2srv_request *next, *prev; + + /* the server_context contains all context specific to this SMB socket */ + struct smbsrv_connection *smb_conn; + + /* the smbsrv_session for the request */ + struct smbsrv_session *session; + + /* the smbsrv_tcon for the request */ + struct smbsrv_tcon *tcon; + + /* the system time when the request arrived */ + struct timeval request_time; + + /* for matching request and reply */ + uint64_t seqnum; + + /* the status the backend returned */ + NTSTATUS status; + +#define SMB2SRV_REQ_CTRL_FLAG_NOT_REPLY (1<<0) + uint32_t control_flags; + + struct smb2_request_buffer in; + struct smb2_request_buffer out; +}; diff --git a/source4/smb_server/smb2/tcon.c b/source4/smb_server/smb2/tcon.c new file mode 100644 index 0000000000..af9632eadc --- /dev/null +++ b/source4/smb_server/smb2/tcon.c @@ -0,0 +1,34 @@ +/* + Unix SMB2 implementation. + + Copyright (C) Stefan Metzmacher 2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "libcli/smb2/smb2.h" +#include "libcli/smb2/smb2_calls.h" +#include "smb_server/smb2/smb2_server.h" + +void smb2srv_tcon_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} + +void smb2srv_tdis_recv(struct smb2srv_request *req) +{ + smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED); +} diff --git a/source4/smb_server/smb_server.c b/source4/smb_server/smb_server.c index 3385e88d4a..f439bce061 100644 --- a/source4/smb_server/smb_server.c +++ b/source4/smb_server/smb_server.c @@ -27,6 +27,7 @@ #include "smb_server/smb_server.h" #include "lib/messaging/irpc.h" #include "lib/stream/packet.h" +#include "libcli/smb2/smb2.h" static NTSTATUS smbsrv_recv_generic_request(void *private, DATA_BLOB blob) { @@ -56,6 +57,12 @@ static NTSTATUS smbsrv_recv_generic_request(void *private, DATA_BLOB blob) NT_STATUS_NOT_OK_RETURN(status); packet_set_callback(smb_conn->packet, smbsrv_recv_smb_request); return smbsrv_recv_smb_request(smb_conn, blob); + case SMB2_MAGIC: + if (!lp_parm_bool(-1, "smbsrv", "enable smb2", False)) break; + status = smbsrv_init_smb2_connection(smb_conn); + NT_STATUS_NOT_OK_RETURN(status); + packet_set_callback(smb_conn->packet, smbsrv_recv_smb2_request); + return smbsrv_recv_smb2_request(smb_conn, blob); } DEBUG(2,("Invalid SMB packet: protocl prefix: 0x%08X\n", protocol_version)); |