diff options
Diffstat (limited to 'source3/smbd/nttrans.c')
| -rw-r--r-- | source3/smbd/nttrans.c | 2864 |
1 files changed, 2864 insertions, 0 deletions
diff --git a/source3/smbd/nttrans.c b/source3/smbd/nttrans.c new file mode 100644 index 0000000000..584399c86c --- /dev/null +++ b/source3/smbd/nttrans.c @@ -0,0 +1,2864 @@ +/* + Unix SMB/CIFS implementation. + SMB NT transaction handling + Copyright (C) Jeremy Allison 1994-2007 + Copyright (C) Stefan (metze) Metzmacher 2003 + + 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 3 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, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" + +extern int max_send; +extern enum protocol_types Protocol; + +static char *nttrans_realloc(char **ptr, size_t size) +{ + if (ptr==NULL) { + smb_panic("nttrans_realloc() called with NULL ptr"); + } + + *ptr = (char *)SMB_REALLOC(*ptr, size); + if(*ptr == NULL) { + return NULL; + } + memset(*ptr,'\0',size); + return *ptr; +} + +/**************************************************************************** + Send the required number of replies back. + We assume all fields other than the data fields are + set correctly for the type of call. + HACK ! Always assumes smb_setup field is zero. +****************************************************************************/ + +void send_nt_replies(connection_struct *conn, + struct smb_request *req, NTSTATUS nt_error, + char *params, int paramsize, + char *pdata, int datasize) +{ + int data_to_send = datasize; + int params_to_send = paramsize; + int useable_space; + char *pp = params; + char *pd = pdata; + int params_sent_thistime, data_sent_thistime, total_sent_thistime; + int alignment_offset = 3; + int data_alignment_offset = 0; + + /* + * If there genuinely are no parameters or data to send just send + * the empty packet. + */ + + if(params_to_send == 0 && data_to_send == 0) { + reply_outbuf(req, 18, 0); + show_msg((char *)req->outbuf); + return; + } + + /* + * When sending params and data ensure that both are nicely aligned. + * Only do this alignment when there is also data to send - else + * can cause NT redirector problems. + */ + + if (((params_to_send % 4) != 0) && (data_to_send != 0)) { + data_alignment_offset = 4 - (params_to_send % 4); + } + + /* + * Space is bufsize minus Netbios over TCP header minus SMB header. + * The alignment_offset is to align the param bytes on a four byte + * boundary (2 bytes for data len, one byte pad). + * NT needs this to work correctly. + */ + + useable_space = max_send - (smb_size + + 2 * 18 /* wct */ + + alignment_offset + + data_alignment_offset); + + if (useable_space < 0) { + DEBUG(0, ("send_nt_replies failed sanity useable_space " + "= %d!!!", useable_space)); + exit_server_cleanly("send_nt_replies: srv_send_smb failed."); + } + + while (params_to_send || data_to_send) { + + /* + * Calculate whether we will totally or partially fill this packet. + */ + + total_sent_thistime = params_to_send + data_to_send; + + /* + * We can never send more than useable_space. + */ + + total_sent_thistime = MIN(total_sent_thistime, useable_space); + + reply_outbuf(req, 18, + total_sent_thistime + alignment_offset + + data_alignment_offset); + + /* + * Set total params and data to be sent. + */ + + SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize); + SIVAL(req->outbuf,smb_ntr_TotalDataCount,datasize); + + /* + * Calculate how many parameters and data we can fit into + * this packet. Parameters get precedence. + */ + + params_sent_thistime = MIN(params_to_send,useable_space); + data_sent_thistime = useable_space - params_sent_thistime; + data_sent_thistime = MIN(data_sent_thistime,data_to_send); + + SIVAL(req->outbuf, smb_ntr_ParameterCount, + params_sent_thistime); + + if(params_sent_thistime == 0) { + SIVAL(req->outbuf,smb_ntr_ParameterOffset,0); + SIVAL(req->outbuf,smb_ntr_ParameterDisplacement,0); + } else { + /* + * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the + * parameter bytes, however the first 4 bytes of outbuf are + * the Netbios over TCP header. Thus use smb_base() to subtract + * them from the calculation. + */ + + SIVAL(req->outbuf,smb_ntr_ParameterOffset, + ((smb_buf(req->outbuf)+alignment_offset) + - smb_base(req->outbuf))); + /* + * Absolute displacement of param bytes sent in this packet. + */ + + SIVAL(req->outbuf, smb_ntr_ParameterDisplacement, + pp - params); + } + + /* + * Deal with the data portion. + */ + + SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime); + + if(data_sent_thistime == 0) { + SIVAL(req->outbuf,smb_ntr_DataOffset,0); + SIVAL(req->outbuf,smb_ntr_DataDisplacement, 0); + } else { + /* + * The offset of the data bytes is the offset of the + * parameter bytes plus the number of parameters being sent this time. + */ + + SIVAL(req->outbuf, smb_ntr_DataOffset, + ((smb_buf(req->outbuf)+alignment_offset) - + smb_base(req->outbuf)) + + params_sent_thistime + data_alignment_offset); + SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata); + } + + /* + * Copy the param bytes into the packet. + */ + + if(params_sent_thistime) { + if (alignment_offset != 0) { + memset(smb_buf(req->outbuf), 0, + alignment_offset); + } + memcpy((smb_buf(req->outbuf)+alignment_offset), pp, + params_sent_thistime); + } + + /* + * Copy in the data bytes + */ + + if(data_sent_thistime) { + if (data_alignment_offset != 0) { + memset((smb_buf(req->outbuf)+alignment_offset+ + params_sent_thistime), 0, + data_alignment_offset); + } + memcpy(smb_buf(req->outbuf)+alignment_offset + +params_sent_thistime+data_alignment_offset, + pd,data_sent_thistime); + } + + DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n", + params_sent_thistime, data_sent_thistime, useable_space)); + DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n", + params_to_send, data_to_send, paramsize, datasize)); + + if (NT_STATUS_V(nt_error)) { + error_packet_set((char *)req->outbuf, + 0, 0, nt_error, + __LINE__,__FILE__); + } + + /* Send the packet */ + show_msg((char *)req->outbuf); + if (!srv_send_smb(smbd_server_fd(), + (char *)req->outbuf, + IS_CONN_ENCRYPTED(conn))) { + exit_server_cleanly("send_nt_replies: srv_send_smb failed."); + } + + TALLOC_FREE(req->outbuf); + + pp += params_sent_thistime; + pd += data_sent_thistime; + + params_to_send -= params_sent_thistime; + data_to_send -= data_sent_thistime; + + /* + * Sanity check + */ + + if(params_to_send < 0 || data_to_send < 0) { + DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!", + params_to_send, data_to_send)); + exit_server_cleanly("send_nt_replies: internal error"); + } + } +} + +/**************************************************************************** + Is it an NTFS stream name ? + An NTFS file name is <path>.<extention>:<stream name>:<stream type> + $DATA can be used as both a stream name and a stream type. A missing stream + name or type implies $DATA. +****************************************************************************/ + +bool is_ntfs_stream_name(const char *fname) +{ + if (lp_posix_pathnames()) { + return False; + } + return (strchr_m(fname, ':') != NULL) ? True : False; +} + +/**************************************************************************** + Reply to an NT create and X call on a pipe +****************************************************************************/ + +static void nt_open_pipe(char *fname, connection_struct *conn, + struct smb_request *req, int *ppnum) +{ + smb_np_struct *p = NULL; + + DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname)); + + /* See if it is one we want to handle. */ + + if (!is_known_pipename(fname)) { + reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND, + ERRDOS, ERRbadpipe); + return; + } + + /* Strip \\ off the name. */ + fname++; + + DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname)); + + p = open_rpc_pipe_p(fname, conn, req->vuid); + if (!p) { + reply_doserror(req, ERRSRV, ERRnofids); + return; + } + + /* TODO: Add pipe to db */ + + if ( !store_pipe_opendb( p ) ) { + DEBUG(3,("nt_open_pipe: failed to store %s pipe open.\n", fname)); + } + + *ppnum = p->pnum; + return; +} + +/**************************************************************************** + Reply to an NT create and X call for pipes. +****************************************************************************/ + +static void do_ntcreate_pipe_open(connection_struct *conn, + struct smb_request *req) +{ + char *fname = NULL; + int pnum = -1; + char *p = NULL; + uint32 flags = IVAL(req->inbuf,smb_ntcreate_Flags); + TALLOC_CTX *ctx = talloc_tos(); + + srvstr_pull_buf_talloc(ctx, (char *)req->inbuf, req->flags2, &fname, + smb_buf(req->inbuf), STR_TERMINATE); + + if (!fname) { + reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND, + ERRDOS, ERRbadpipe); + return; + } + nt_open_pipe(fname, conn, req, &pnum); + + if (req->outbuf) { + /* error reply */ + return; + } + + /* + * Deal with pipe return. + */ + + if (flags & EXTENDED_RESPONSE_REQUIRED) { + /* This is very strange. We + * return 50 words, but only set + * the wcnt to 42 ? It's definately + * what happens on the wire.... + */ + reply_outbuf(req, 50, 0); + SCVAL(req->outbuf,smb_wct,42); + } else { + reply_outbuf(req, 34, 0); + } + + p = (char *)req->outbuf + smb_vwv2; + p++; + SSVAL(p,0,pnum); + p += 2; + SIVAL(p,0,FILE_WAS_OPENED); + p += 4; + p += 32; + SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */ + p += 20; + /* File type. */ + SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE); + /* Device state. */ + SSVAL(p,2, 0x5FF); /* ? */ + p += 4; + + if (flags & EXTENDED_RESPONSE_REQUIRED) { + p += 25; + SIVAL(p,0,FILE_GENERIC_ALL); + /* + * For pipes W2K3 seems to return + * 0x12019B next. + * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA) + */ + SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA); + } + + DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname)); + + chain_reply(req); +} + +/**************************************************************************** + Reply to an NT create and X call. +****************************************************************************/ + +void reply_ntcreate_and_X(struct smb_request *req) +{ + connection_struct *conn = req->conn; + char *fname = NULL; + uint32 flags; + uint32 access_mask; + uint32 file_attributes; + uint32 share_access; + uint32 create_disposition; + uint32 create_options; + uint16 root_dir_fid; + SMB_BIG_UINT allocation_size; + /* Breakout the oplock request bits so we can set the + reply bits separately. */ + uint32 fattr=0; + SMB_OFF_T file_len = 0; + SMB_STRUCT_STAT sbuf; + int info = 0; + files_struct *fsp = NULL; + char *p = NULL; + struct timespec c_timespec; + struct timespec a_timespec; + struct timespec m_timespec; + NTSTATUS status; + int oplock_request; + uint8_t oplock_granted = NO_OPLOCK_RETURN; + TALLOC_CTX *ctx = talloc_tos(); + + START_PROFILE(SMBntcreateX); + + if (req->wct < 24) { + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + return; + } + + flags = IVAL(req->inbuf,smb_ntcreate_Flags); + access_mask = IVAL(req->inbuf,smb_ntcreate_DesiredAccess); + file_attributes = IVAL(req->inbuf,smb_ntcreate_FileAttributes); + share_access = IVAL(req->inbuf,smb_ntcreate_ShareAccess); + create_disposition = IVAL(req->inbuf,smb_ntcreate_CreateDisposition); + create_options = IVAL(req->inbuf,smb_ntcreate_CreateOptions); + root_dir_fid = (uint16)IVAL(req->inbuf,smb_ntcreate_RootDirectoryFid); + + allocation_size = (SMB_BIG_UINT)IVAL(req->inbuf, + smb_ntcreate_AllocationSize); +#ifdef LARGE_SMB_OFF_T + allocation_size |= (((SMB_BIG_UINT)IVAL( + req->inbuf, + smb_ntcreate_AllocationSize + 4)) << 32); +#endif + + srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname, + smb_buf(req->inbuf), 0, STR_TERMINATE, &status); + + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + END_PROFILE(SMBntcreateX); + return; + } + + DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x " + "file_attributes = 0x%x, share_access = 0x%x, " + "create_disposition = 0x%x create_options = 0x%x " + "root_dir_fid = 0x%x, fname = %s\n", + (unsigned int)flags, + (unsigned int)access_mask, + (unsigned int)file_attributes, + (unsigned int)share_access, + (unsigned int)create_disposition, + (unsigned int)create_options, + (unsigned int)root_dir_fid, + fname)); + + /* + * we need to remove ignored bits when they come directly from the client + * because we reuse some of them for internal stuff + */ + create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK; + + /* + * If it's an IPC, use the pipe handler. + */ + + if (IS_IPC(conn)) { + if (lp_nt_pipe_support()) { + do_ntcreate_pipe_open(conn, req); + END_PROFILE(SMBntcreateX); + return; + } + reply_doserror(req, ERRDOS, ERRnoaccess); + END_PROFILE(SMBntcreateX); + return; + } + + oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0; + if (oplock_request) { + oplock_request |= (flags & REQUEST_BATCH_OPLOCK) + ? BATCH_OPLOCK : 0; + } + + status = create_file(conn, req, root_dir_fid, fname, + access_mask, share_access, create_disposition, + create_options, file_attributes, oplock_request, + allocation_size, NULL, NULL, &fsp, &info, &sbuf); + + if (!NT_STATUS_IS_OK(status)) { + if (open_was_deferred(req->mid)) { + /* We have re-scheduled this call, no error. */ + END_PROFILE(SMBntcreateX); + return; + } + if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) { + reply_botherror(req, status, ERRDOS, ERRfilexists); + } + else { + reply_nterror(req, status); + } + END_PROFILE(SMBntcreateX); + return; + } + + /* + * If the caller set the extended oplock request bit + * and we granted one (by whatever means) - set the + * correct bit for extended oplock reply. + */ + + if (oplock_request && + (lp_fake_oplocks(SNUM(conn)) + || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) { + + /* + * Exclusive oplock granted + */ + + if (flags & REQUEST_BATCH_OPLOCK) { + oplock_granted = BATCH_OPLOCK_RETURN; + } else { + oplock_granted = EXCLUSIVE_OPLOCK_RETURN; + } + } else if (fsp->oplock_type == LEVEL_II_OPLOCK) { + oplock_granted = LEVEL_II_OPLOCK_RETURN; + } else { + oplock_granted = NO_OPLOCK_RETURN; + } + + file_len = sbuf.st_size; + fattr = dos_mode(conn,fsp->fsp_name,&sbuf); + if (fattr == 0) { + fattr = FILE_ATTRIBUTE_NORMAL; + } + + if (flags & EXTENDED_RESPONSE_REQUIRED) { + /* This is very strange. We + * return 50 words, but only set + * the wcnt to 42 ? It's definately + * what happens on the wire.... + */ + reply_outbuf(req, 50, 0); + SCVAL(req->outbuf,smb_wct,42); + } else { + reply_outbuf(req, 34, 0); + } + + p = (char *)req->outbuf + smb_vwv2; + + SCVAL(p, 0, oplock_granted); + + p++; + SSVAL(p,0,fsp->fnum); + p += 2; + if ((create_disposition == FILE_SUPERSEDE) + && (info == FILE_WAS_OVERWRITTEN)) { + SIVAL(p,0,FILE_WAS_SUPERSEDED); + } else { + SIVAL(p,0,info); + } + p += 4; + + /* Create time. */ + c_timespec = get_create_timespec( + &sbuf,lp_fake_dir_create_times(SNUM(conn))); + a_timespec = get_atimespec(&sbuf); + m_timespec = get_mtimespec(&sbuf); + + if (lp_dos_filetime_resolution(SNUM(conn))) { + dos_filetime_timespec(&c_timespec); + dos_filetime_timespec(&a_timespec); + dos_filetime_timespec(&m_timespec); + } + + put_long_date_timespec(p, c_timespec); /* create time. */ + p += 8; + put_long_date_timespec(p, a_timespec); /* access time */ + p += 8; + put_long_date_timespec(p, m_timespec); /* write time */ + p += 8; + put_long_date_timespec(p, m_timespec); /* change time */ + p += 8; + SIVAL(p,0,fattr); /* File Attributes. */ + p += 4; + SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf)); + p += 8; + SOFF_T(p,0,file_len); + p += 8; + if (flags & EXTENDED_RESPONSE_REQUIRED) { + SSVAL(p,2,0x7); + } + p += 4; + SCVAL(p,0,fsp->is_directory ? 1 : 0); + + if (flags & EXTENDED_RESPONSE_REQUIRED) { + uint32 perms = 0; + p += 25; + if (fsp->is_directory + || can_write_to_file(conn, fsp->fsp_name, &sbuf)) { + perms = FILE_GENERIC_ALL; + } else { + perms = FILE_GENERIC_READ|FILE_EXECUTE; + } + SIVAL(p,0,perms); + } + + DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n", + fsp->fnum, fsp->fsp_name)); + + chain_reply(req); + END_PROFILE(SMBntcreateX); + return; +} + +/**************************************************************************** + Reply to a NT_TRANSACT_CREATE call to open a pipe. +****************************************************************************/ + +static void do_nt_transact_create_pipe(connection_struct *conn, + struct smb_request *req, + uint16 **ppsetup, uint32 setup_count, + char **ppparams, uint32 parameter_count, + char **ppdata, uint32 data_count) +{ + char *fname = NULL; + char *params = *ppparams; + int pnum = -1; + char *p = NULL; + NTSTATUS status; + size_t param_len; + uint32 flags; + TALLOC_CTX *ctx = talloc_tos(); + + /* + * Ensure minimum number of parameters sent. + */ + + if(parameter_count < 54) { + DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count)); + reply_doserror(req, ERRDOS, ERRnoaccess); + return; + } + + flags = IVAL(params,0); + + srvstr_get_path(ctx, params, req->flags2, &fname, params+53, + parameter_count-53, STR_TERMINATE, + &status); + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + return; + } + + nt_open_pipe(fname, conn, req, &pnum); + + if (req->outbuf) { + /* Error return */ + return; + } + + /* Realloc the size of parameters and data we will return */ + if (flags & EXTENDED_RESPONSE_REQUIRED) { + /* Extended response is 32 more byyes. */ + param_len = 101; + } else { + param_len = 69; + } + params = nttrans_realloc(ppparams, param_len); + if(params == NULL) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + p = params; + SCVAL(p,0,NO_OPLOCK_RETURN); + + p += 2; + SSVAL(p,0,pnum); + p += 2; + SIVAL(p,0,FILE_WAS_OPENED); + p += 8; + + p += 32; + SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */ + p += 20; + /* File type. */ + SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE); + /* Device state. */ + SSVAL(p,2, 0x5FF); /* ? */ + p += 4; + + if (flags & EXTENDED_RESPONSE_REQUIRED) { + p += 25; + SIVAL(p,0,FILE_GENERIC_ALL); + /* + * For pipes W2K3 seems to return + * 0x12019B next. + * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA) + */ + SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA); + } + + DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname)); + + /* Send the required number of replies */ + send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0); + + return; +} + +/**************************************************************************** + Internal fn to set security descriptors. +****************************************************************************/ + +static NTSTATUS set_sd(files_struct *fsp, uint8 *data, uint32 sd_len, + uint32 security_info_sent) +{ + SEC_DESC *psd = NULL; + NTSTATUS status; + + if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) { + return NT_STATUS_OK; + } + + status = unmarshall_sec_desc(talloc_tos(), data, sd_len, &psd); + + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + if (psd->owner_sid==0) { + security_info_sent &= ~OWNER_SECURITY_INFORMATION; + } + if (psd->group_sid==0) { + security_info_sent &= ~GROUP_SECURITY_INFORMATION; + } + if (psd->sacl==0) { + security_info_sent &= ~SACL_SECURITY_INFORMATION; + } + if (psd->dacl==0) { + security_info_sent &= ~DACL_SECURITY_INFORMATION; + } + + status = SMB_VFS_FSET_NT_ACL(fsp, security_info_sent, psd); + + TALLOC_FREE(psd); + + return status; +} + +/**************************************************************************** + Read a list of EA names and data from an incoming data buffer. Create an ea_list with them. +****************************************************************************/ + +static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size) +{ + struct ea_list *ea_list_head = NULL; + size_t offset = 0; + + if (data_size < 4) { + return NULL; + } + + while (offset + 4 <= data_size) { + size_t next_offset = IVAL(pdata,offset); + struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL); + + if (!eal) { + return NULL; + } + + DLIST_ADD_END(ea_list_head, eal, struct ea_list *); + if (next_offset == 0) { + break; + } + offset += next_offset; + } + + return ea_list_head; +} + +/**************************************************************************** + Reply to a NT_TRANSACT_CREATE call (needs to process SD's). +****************************************************************************/ + +static void call_nt_transact_create(connection_struct *conn, + struct smb_request *req, + uint16 **ppsetup, uint32 setup_count, + char **ppparams, uint32 parameter_count, + char **ppdata, uint32 data_count, + uint32 max_data_count) +{ + char *fname = NULL; + char *params = *ppparams; + char *data = *ppdata; + /* Breakout the oplock request bits so we can set the reply bits separately. */ + uint32 fattr=0; + SMB_OFF_T file_len = 0; + SMB_STRUCT_STAT sbuf; + int info = 0; + files_struct *fsp = NULL; + char *p = NULL; + uint32 flags; + uint32 access_mask; + uint32 file_attributes; + uint32 share_access; + uint32 create_disposition; + uint32 create_options; + uint32 sd_len; + struct security_descriptor *sd = NULL; + uint32 ea_len; + uint16 root_dir_fid; + struct timespec c_timespec; + struct timespec a_timespec; + struct timespec m_timespec; + struct ea_list *ea_list = NULL; + NTSTATUS status; + size_t param_len; + SMB_BIG_UINT allocation_size; + int oplock_request; + uint8_t oplock_granted; + TALLOC_CTX *ctx = talloc_tos(); + + DEBUG(5,("call_nt_transact_create\n")); + + /* + * If it's an IPC, use the pipe handler. + */ + + if (IS_IPC(conn)) { + if (lp_nt_pipe_support()) { + do_nt_transact_create_pipe( + conn, req, + ppsetup, setup_count, + ppparams, parameter_count, + ppdata, data_count); + return; + } + reply_doserror(req, ERRDOS, ERRnoaccess); + return; + } + + /* + * Ensure minimum number of parameters sent. + */ + + if(parameter_count < 54) { + DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count)); + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + return; + } + + flags = IVAL(params,0); + access_mask = IVAL(params,8); + file_attributes = IVAL(params,20); + share_access = IVAL(params,24); + create_disposition = IVAL(params,28); + create_options = IVAL(params,32); + sd_len = IVAL(params,36); + ea_len = IVAL(params,40); + root_dir_fid = (uint16)IVAL(params,4); + allocation_size = (SMB_BIG_UINT)IVAL(params,12); +#ifdef LARGE_SMB_OFF_T + allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32); +#endif + + /* + * we need to remove ignored bits when they come directly from the client + * because we reuse some of them for internal stuff + */ + create_options &= ~NTCREATEX_OPTIONS_MUST_IGNORE_MASK; + + /* Ensure the data_len is correct for the sd and ea values given. */ + if ((ea_len + sd_len > data_count) + || (ea_len > data_count) || (sd_len > data_count) + || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) { + DEBUG(10, ("call_nt_transact_create - ea_len = %u, sd_len = " + "%u, data_count = %u\n", (unsigned int)ea_len, + (unsigned int)sd_len, (unsigned int)data_count)); + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + return; + } + + if (sd_len) { + DEBUG(10, ("call_nt_transact_create - sd_len = %d\n", + sd_len)); + + status = unmarshall_sec_desc(ctx, (uint8_t *)data, sd_len, + &sd); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(10, ("call_nt_transact_create: " + "unmarshall_sec_desc failed: %s\n", + nt_errstr(status))); + reply_nterror(req, status); + return; + } + } + + if (ea_len) { + if (!lp_ea_support(SNUM(conn))) { + DEBUG(10, ("call_nt_transact_create - ea_len = %u but " + "EA's not supported.\n", + (unsigned int)ea_len)); + reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED); + return; + } + + if (ea_len < 10) { + DEBUG(10,("call_nt_transact_create - ea_len = %u - " + "too small (should be more than 10)\n", + (unsigned int)ea_len )); + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + return; + } + + /* We have already checked that ea_len <= data_count here. */ + ea_list = read_nttrans_ea_list(talloc_tos(), data + sd_len, + ea_len); + if (ea_list == NULL) { + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + return; + } + } + + srvstr_get_path(ctx, params, req->flags2, &fname, + params+53, parameter_count-53, + STR_TERMINATE, &status); + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + return; + } + + oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0; + if (oplock_request) { + oplock_request |= (flags & REQUEST_BATCH_OPLOCK) + ? BATCH_OPLOCK : 0; + } + + status = create_file(conn, req, root_dir_fid, fname, + access_mask, share_access, create_disposition, + create_options, file_attributes, oplock_request, + allocation_size, sd, ea_list, &fsp, &info, &sbuf); + + if(!NT_STATUS_IS_OK(status)) { + if (open_was_deferred(req->mid)) { + /* We have re-scheduled this call, no error. */ + return; + } + reply_openerror(req, status); + return; + } + + /* + * If the caller set the extended oplock request bit + * and we granted one (by whatever means) - set the + * correct bit for extended oplock reply. + */ + + if (oplock_request && + (lp_fake_oplocks(SNUM(conn)) + || EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type))) { + + /* + * Exclusive oplock granted + */ + + if (flags & REQUEST_BATCH_OPLOCK) { + oplock_granted = BATCH_OPLOCK_RETURN; + } else { + oplock_granted = EXCLUSIVE_OPLOCK_RETURN; + } + } else if (fsp->oplock_type == LEVEL_II_OPLOCK) { + oplock_granted = LEVEL_II_OPLOCK_RETURN; + } else { + oplock_granted = NO_OPLOCK_RETURN; + } + + file_len = sbuf.st_size; + fattr = dos_mode(conn,fsp->fsp_name,&sbuf); + if (fattr == 0) { + fattr = FILE_ATTRIBUTE_NORMAL; + } + + /* Realloc the size of parameters and data we will return */ + if (flags & EXTENDED_RESPONSE_REQUIRED) { + /* Extended response is 32 more byyes. */ + param_len = 101; + } else { + param_len = 69; + } + params = nttrans_realloc(ppparams, param_len); + if(params == NULL) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + p = params; + SCVAL(p, 0, oplock_granted); + + p += 2; + SSVAL(p,0,fsp->fnum); + p += 2; + if ((create_disposition == FILE_SUPERSEDE) + && (info == FILE_WAS_OVERWRITTEN)) { + SIVAL(p,0,FILE_WAS_SUPERSEDED); + } else { + SIVAL(p,0,info); + } + p += 8; + + /* Create time. */ + c_timespec = get_create_timespec( + &sbuf,lp_fake_dir_create_times(SNUM(conn))); + a_timespec = get_atimespec(&sbuf); + m_timespec = get_mtimespec(&sbuf); + + if (lp_dos_filetime_resolution(SNUM(conn))) { + dos_filetime_timespec(&c_timespec); + dos_filetime_timespec(&a_timespec); + dos_filetime_timespec(&m_timespec); + } + + put_long_date_timespec(p, c_timespec); /* create time. */ + p += 8; + put_long_date_timespec(p, a_timespec); /* access time */ + p += 8; + put_long_date_timespec(p, m_timespec); /* write time */ + p += 8; + put_long_date_timespec(p, m_timespec); /* change time */ + p += 8; + SIVAL(p,0,fattr); /* File Attributes. */ + p += 4; + SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf)); + p += 8; + SOFF_T(p,0,file_len); + p += 8; + if (flags & EXTENDED_RESPONSE_REQUIRED) { + SSVAL(p,2,0x7); + } + p += 4; + SCVAL(p,0,fsp->is_directory ? 1 : 0); + + if (flags & EXTENDED_RESPONSE_REQUIRED) { + uint32 perms = 0; + p += 25; + if (fsp->is_directory + || can_write_to_file(conn, fsp->fsp_name, &sbuf)) { + perms = FILE_GENERIC_ALL; + } else { + perms = FILE_GENERIC_READ|FILE_EXECUTE; + } + SIVAL(p,0,perms); + } + + DEBUG(5,("call_nt_transact_create: open name = %s\n", fsp->fsp_name)); + + /* Send the required number of replies */ + send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, *ppdata, 0); + + return; +} + +/**************************************************************************** + Reply to a NT CANCEL request. + conn POINTER CAN BE NULL HERE ! +****************************************************************************/ + +void reply_ntcancel(struct smb_request *req) +{ + /* + * Go through and cancel any pending change notifies. + */ + + START_PROFILE(SMBntcancel); + remove_pending_change_notify_requests_by_mid(req->mid); + remove_pending_lock_requests_by_mid(req->mid); + srv_cancel_sign_response(req->mid); + + DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid)); + + END_PROFILE(SMBntcancel); + return; +} + +/**************************************************************************** + Copy a file. +****************************************************************************/ + +static NTSTATUS copy_internals(TALLOC_CTX *ctx, + connection_struct *conn, + struct smb_request *req, + const char *oldname_in, + const char *newname_in, + uint32 attrs) +{ + SMB_STRUCT_STAT sbuf1, sbuf2; + char *oldname = NULL; + char *newname = NULL; + char *last_component_oldname = NULL; + char *last_component_newname = NULL; + files_struct *fsp1,*fsp2; + uint32 fattr; + int info; + SMB_OFF_T ret=-1; + NTSTATUS status = NT_STATUS_OK; + + ZERO_STRUCT(sbuf1); + ZERO_STRUCT(sbuf2); + + if (!CAN_WRITE(conn)) { + return NT_STATUS_MEDIA_WRITE_PROTECTED; + } + + status = unix_convert(ctx, conn, oldname_in, False, &oldname, + &last_component_oldname, &sbuf1); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + status = check_name(conn, oldname); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + /* Source must already exist. */ + if (!VALID_STAT(sbuf1)) { + return NT_STATUS_OBJECT_NAME_NOT_FOUND; + } + /* Ensure attributes match. */ + fattr = dos_mode(conn,oldname,&sbuf1); + if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) { + return NT_STATUS_NO_SUCH_FILE; + } + + status = unix_convert(ctx, conn, newname_in, False, &newname, + &last_component_newname, &sbuf2); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + status = check_name(conn, newname); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + /* Disallow if newname already exists. */ + if (VALID_STAT(sbuf2)) { + return NT_STATUS_OBJECT_NAME_COLLISION; + } + + /* No links from a directory. */ + if (S_ISDIR(sbuf1.st_mode)) { + return NT_STATUS_FILE_IS_A_DIRECTORY; + } + + /* Ensure this is within the share. */ + status = check_reduced_name(conn, oldname); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + DEBUG(10,("copy_internals: doing file copy %s to %s\n", + oldname, newname)); + + status = open_file_ntcreate(conn, req, oldname, &sbuf1, + FILE_READ_DATA, /* Read-only. */ + FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, + FILE_OPEN, + 0, /* No create options. */ + FILE_ATTRIBUTE_NORMAL, + NO_OPLOCK, + &info, &fsp1); + + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + status = open_file_ntcreate(conn, req, newname, &sbuf2, + FILE_WRITE_DATA, /* Read-only. */ + FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, + FILE_CREATE, + 0, /* No create options. */ + fattr, + NO_OPLOCK, + &info, &fsp2); + + if (!NT_STATUS_IS_OK(status)) { + close_file(fsp1,ERROR_CLOSE); + return status; + } + + if (sbuf1.st_size) { + ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size); + } + + /* + * As we are opening fsp1 read-only we only expect + * an error on close on fsp2 if we are out of space. + * Thus we don't look at the error return from the + * close of fsp1. + */ + close_file(fsp1,NORMAL_CLOSE); + + /* Ensure the modtime is set correctly on the destination file. */ + set_close_write_time(fsp2, get_mtimespec(&sbuf1)); + + status = close_file(fsp2,NORMAL_CLOSE); + + /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it + creates the file. This isn't the correct thing to do in the copy + case. JRA */ + file_set_dosmode(conn, newname, fattr, &sbuf2, + parent_dirname(newname),false); + + if (ret < (SMB_OFF_T)sbuf1.st_size) { + return NT_STATUS_DISK_FULL; + } + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(3,("copy_internals: Error %s copy file %s to %s\n", + nt_errstr(status), oldname, newname)); + } + return status; +} + +/**************************************************************************** + Reply to a NT rename request. +****************************************************************************/ + +void reply_ntrename(struct smb_request *req) +{ + connection_struct *conn = req->conn; + char *oldname = NULL; + char *newname = NULL; + char *p; + NTSTATUS status; + bool src_has_wcard = False; + bool dest_has_wcard = False; + uint32 attrs; + uint16 rename_type; + TALLOC_CTX *ctx = talloc_tos(); + + START_PROFILE(SMBntrename); + + if (req->wct < 4) { + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + END_PROFILE(SMBntrename); + return; + } + + attrs = SVAL(req->inbuf,smb_vwv0); + rename_type = SVAL(req->inbuf,smb_vwv1); + + p = smb_buf(req->inbuf) + 1; + p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &oldname, p, + 0, STR_TERMINATE, &status, + &src_has_wcard); + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + END_PROFILE(SMBntrename); + return; + } + + if( is_ntfs_stream_name(oldname)) { + /* Can't rename a stream. */ + reply_nterror(req, NT_STATUS_ACCESS_DENIED); + END_PROFILE(SMBntrename); + return; + } + + if (ms_has_wild(oldname)) { + reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD); + END_PROFILE(SMBntrename); + return; + } + + p++; + p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p, + 0, STR_TERMINATE, &status, + &dest_has_wcard); + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + END_PROFILE(SMBntrename); + return; + } + + status = resolve_dfspath(ctx, conn, + req->flags2 & FLAGS2_DFS_PATHNAMES, + oldname, + &oldname); + if (!NT_STATUS_IS_OK(status)) { + if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { + reply_botherror(req, NT_STATUS_PATH_NOT_COVERED, + ERRSRV, ERRbadpath); + END_PROFILE(SMBntrename); + return; + } + reply_nterror(req, status); + END_PROFILE(SMBntrename); + return; + } + + status = resolve_dfspath(ctx, conn, + req->flags2 & FLAGS2_DFS_PATHNAMES, + newname, + &newname); + if (!NT_STATUS_IS_OK(status)) { + if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { + reply_botherror(req, NT_STATUS_PATH_NOT_COVERED, + ERRSRV, ERRbadpath); + END_PROFILE(SMBntrename); + return; + } + reply_nterror(req, status); + END_PROFILE(SMBntrename); + return; + } + + DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname)); + + switch(rename_type) { + case RENAME_FLAG_RENAME: + status = rename_internals(ctx, conn, req, oldname, + newname, attrs, False, src_has_wcard, + dest_has_wcard, DELETE_ACCESS); + break; + case RENAME_FLAG_HARD_LINK: + if (src_has_wcard || dest_has_wcard) { + /* No wildcards. */ + status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD; + } else { + status = hardlink_internals(ctx, + conn, + oldname, + newname); + } + break; + case RENAME_FLAG_COPY: + if (src_has_wcard || dest_has_wcard) { + /* No wildcards. */ + status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD; + } else { + status = copy_internals(ctx, conn, req, oldname, + newname, attrs); + } + break; + case RENAME_FLAG_MOVE_CLUSTER_INFORMATION: + status = NT_STATUS_INVALID_PARAMETER; + break; + default: + status = NT_STATUS_ACCESS_DENIED; /* Default error. */ + break; + } + + if (!NT_STATUS_IS_OK(status)) { + if (open_was_deferred(req->mid)) { + /* We have re-scheduled this call. */ + END_PROFILE(SMBntrename); + return; + } + + reply_nterror(req, status); + END_PROFILE(SMBntrename); + return; + } + + reply_outbuf(req, 0, 0); + + END_PROFILE(SMBntrename); + return; +} + +/**************************************************************************** + Reply to a notify change - queue the request and + don't allow a directory to be opened. +****************************************************************************/ + +static void call_nt_transact_notify_change(connection_struct *conn, + struct smb_request *req, + uint16 **ppsetup, + uint32 setup_count, + char **ppparams, + uint32 parameter_count, + char **ppdata, uint32 data_count, + uint32 max_data_count, + uint32 max_param_count) +{ + uint16 *setup = *ppsetup; + files_struct *fsp; + uint32 filter; + NTSTATUS status; + bool recursive; + + if(setup_count < 6) { + reply_doserror(req, ERRDOS, ERRbadfunc); + return; + } + + fsp = file_fsp(SVAL(setup,4)); + filter = IVAL(setup, 0); + recursive = (SVAL(setup, 6) != 0) ? True : False; + + DEBUG(3,("call_nt_transact_notify_change\n")); + + if(!fsp) { + reply_doserror(req, ERRDOS, ERRbadfid); + return; + } + + { + char *filter_string; + + if (!(filter_string = notify_filter_string(NULL, filter))) { + reply_nterror(req,NT_STATUS_NO_MEMORY); + return; + } + + DEBUG(3,("call_nt_transact_notify_change: notify change " + "called on %s, filter = %s, recursive = %d\n", + fsp->fsp_name, filter_string, recursive)); + + TALLOC_FREE(filter_string); + } + + if((!fsp->is_directory) || (conn != fsp->conn)) { + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + return; + } + + if (fsp->notify == NULL) { + + status = change_notify_create(fsp, filter, recursive); + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(10, ("change_notify_create returned %s\n", + nt_errstr(status))); + reply_nterror(req, status); + return; + } + } + + if (fsp->notify->num_changes != 0) { + + /* + * We've got changes pending, respond immediately + */ + + /* + * TODO: write a torture test to check the filtering behaviour + * here. + */ + + change_notify_reply(fsp->conn, req->inbuf, max_param_count, fsp->notify); + + /* + * change_notify_reply() above has independently sent its + * results + */ + return; + } + + /* + * No changes pending, queue the request + */ + + status = change_notify_add_request(req, + max_param_count, + filter, + recursive, fsp); + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + } + return; +} + +/**************************************************************************** + Reply to an NT transact rename command. +****************************************************************************/ + +static void call_nt_transact_rename(connection_struct *conn, + struct smb_request *req, + uint16 **ppsetup, uint32 setup_count, + char **ppparams, uint32 parameter_count, + char **ppdata, uint32 data_count, + uint32 max_data_count) +{ + char *params = *ppparams; + char *new_name = NULL; + files_struct *fsp = NULL; + bool dest_has_wcard = False; + NTSTATUS status; + TALLOC_CTX *ctx = talloc_tos(); + + if(parameter_count < 5) { + reply_doserror(req, ERRDOS, ERRbadfunc); + return; + } + + fsp = file_fsp(SVAL(params, 0)); + if (!check_fsp(conn, req, fsp)) { + return; + } + srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4, + parameter_count - 4, + STR_TERMINATE, &status, &dest_has_wcard); + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + return; + } + + /* + * W2K3 ignores this request as the RAW-RENAME test + * demonstrates, so we do. + */ + send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0); + + DEBUG(3,("nt transact rename from = %s, to = %s ignored!\n", + fsp->fsp_name, new_name)); + + return; +} + +/****************************************************************************** + Fake up a completely empty SD. +*******************************************************************************/ + +static NTSTATUS get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd) +{ + size_t sd_size; + + *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size); + if(!*ppsd) { + DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n")); + return NT_STATUS_NO_MEMORY; + } + + return NT_STATUS_OK; +} + +/**************************************************************************** + Reply to query a security descriptor. +****************************************************************************/ + +static void call_nt_transact_query_security_desc(connection_struct *conn, + struct smb_request *req, + uint16 **ppsetup, + uint32 setup_count, + char **ppparams, + uint32 parameter_count, + char **ppdata, + uint32 data_count, + uint32 max_data_count) +{ + char *params = *ppparams; + char *data = *ppdata; + SEC_DESC *psd = NULL; + size_t sd_size; + uint32 security_info_wanted; + files_struct *fsp = NULL; + NTSTATUS status; + DATA_BLOB blob; + + if(parameter_count < 8) { + reply_doserror(req, ERRDOS, ERRbadfunc); + return; + } + + fsp = file_fsp(SVAL(params,0)); + if(!fsp) { + reply_doserror(req, ERRDOS, ERRbadfid); + return; + } + + security_info_wanted = IVAL(params,4); + + DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name, + (unsigned int)security_info_wanted )); + + params = nttrans_realloc(ppparams, 4); + if(params == NULL) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + /* + * Get the permissions to return. + */ + + if (!lp_nt_acl_support(SNUM(conn))) { + status = get_null_nt_acl(talloc_tos(), &psd); + } else { + status = SMB_VFS_FGET_NT_ACL( + fsp, security_info_wanted, &psd); + } + + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + return; + } + + sd_size = ndr_size_security_descriptor(psd, 0); + + DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size)); + + SIVAL(params,0,(uint32)sd_size); + + if (max_data_count < sd_size) { + send_nt_replies(conn, req, NT_STATUS_BUFFER_TOO_SMALL, + params, 4, *ppdata, 0); + return; + } + + /* + * Allocate the data we will point this at. + */ + + data = nttrans_realloc(ppdata, sd_size); + if(data == NULL) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + status = marshall_sec_desc(talloc_tos(), psd, + &blob.data, &blob.length); + + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + return; + } + + SMB_ASSERT(sd_size == blob.length); + memcpy(data, blob.data, sd_size); + + send_nt_replies(conn, req, NT_STATUS_OK, params, 4, data, (int)sd_size); + + return; +} + +/**************************************************************************** + Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs. +****************************************************************************/ + +static void call_nt_transact_set_security_desc(connection_struct *conn, + struct smb_request *req, + uint16 **ppsetup, + uint32 setup_count, + char **ppparams, + uint32 parameter_count, + char **ppdata, + uint32 data_count, + uint32 max_data_count) +{ + char *params= *ppparams; + char *data = *ppdata; + files_struct *fsp = NULL; + uint32 security_info_sent = 0; + NTSTATUS status; + + if(parameter_count < 8) { + reply_doserror(req, ERRDOS, ERRbadfunc); + return; + } + + if((fsp = file_fsp(SVAL(params,0))) == NULL) { + reply_doserror(req, ERRDOS, ERRbadfid); + return; + } + + if(!lp_nt_acl_support(SNUM(conn))) { + goto done; + } + + security_info_sent = IVAL(params,4); + + DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name, + (unsigned int)security_info_sent )); + + if (data_count == 0) { + reply_doserror(req, ERRDOS, ERRnoaccess); + return; + } + + status = set_sd(fsp, (uint8 *)data, data_count, security_info_sent); + + if (!NT_STATUS_IS_OK(status)) { + reply_nterror(req, status); + return; + } + + done: + send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0); + return; +} + +/**************************************************************************** + Reply to NT IOCTL +****************************************************************************/ + +static void call_nt_transact_ioctl(connection_struct *conn, + struct smb_request *req, + uint16 **ppsetup, uint32 setup_count, + char **ppparams, uint32 parameter_count, + char **ppdata, uint32 data_count, + uint32 max_data_count) +{ + uint32 function; + uint16 fidnum; + files_struct *fsp; + uint8 isFSctl; + uint8 compfilter; + static bool logged_message; + char *pdata = *ppdata; + + if (setup_count != 8) { + DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count)); + reply_nterror(req, NT_STATUS_NOT_SUPPORTED); + return; + } + + function = IVAL(*ppsetup, 0); + fidnum = SVAL(*ppsetup, 4); + isFSctl = CVAL(*ppsetup, 6); + compfilter = CVAL(*ppsetup, 7); + + DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n", + function, fidnum, isFSctl, compfilter)); + + fsp=file_fsp(fidnum); + /* this check is done in each implemented function case for now + because I don't want to break anything... --metze + FSP_BELONGS_CONN(fsp,conn);*/ + + switch (function) { + case FSCTL_SET_SPARSE: + /* pretend this succeeded - tho strictly we should + mark the file sparse (if the local fs supports it) + so we can know if we need to pre-allocate or not */ + + DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum)); + send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0); + return; + + case FSCTL_CREATE_OR_GET_OBJECT_ID: + { + unsigned char objid[16]; + + /* This should return the object-id on this file. + * I think I'll make this be the inode+dev. JRA. + */ + + DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum)); + + if (!fsp_belongs_conn(conn, req, fsp)) { + return; + } + + data_count = 64; + pdata = nttrans_realloc(ppdata, data_count); + if (pdata == NULL) { + reply_nterror(req, NT_STATUS_NO_MEMORY); + return; + } + push_file_id_16(pdata, &fsp->file_id); + memcpy(pdata+16,create_volume_objectid(conn,objid),16); + push_file_id_16(pdata+32, &fsp->file_id); + send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, + pdata, data_count); + return; + } + + case FSCTL_GET_REPARSE_POINT: + /* pretend this fail - my winXP does it like this + * --metze + */ + + DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum)); + reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT); + return; + + case FSCTL_SET_REPARSE_POINT: + /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case. + * --metze + */ + + DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum)); + reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT); + return; + + case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/ + { + /* + * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots) + * and return their volume names. If max_data_count is 16, then it is just + * asking for the number of volumes and length of the combined names. + * + * pdata is the data allocated by our caller, but that uses + * total_data_count (which is 0 in our case) rather than max_data_count. + * Allocate the correct amount and return the pointer to let + * it be deallocated when we return. + */ + SHADOW_COPY_DATA *shadow_data = NULL; + TALLOC_CTX *shadow_mem_ctx = NULL; + bool labels = False; + uint32 labels_data_count = 0; + uint32 i; + char *cur_pdata; + + if (!fsp_belongs_conn(conn, req, fsp)) { + return; + } + + if (max_data_count < 16) { + DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n", + max_data_count)); + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + return; + } + + if (max_data_count > 16) { + labels = True; + } + + shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA"); + if (shadow_mem_ctx == NULL) { + DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n")); + reply_nterror(req, NT_STATUS_NO_MEMORY); + return; + } + + shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA); + if (shadow_data == NULL) { + DEBUG(0,("TALLOC_ZERO() failed!\n")); + talloc_destroy(shadow_mem_ctx); + reply_nterror(req, NT_STATUS_NO_MEMORY); + return; + } + + shadow_data->mem_ctx = shadow_mem_ctx; + + /* + * Call the VFS routine to actually do the work. + */ + if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) { + talloc_destroy(shadow_data->mem_ctx); + if (errno == ENOSYS) { + DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n", + conn->connectpath)); + reply_nterror(req, NT_STATUS_NOT_SUPPORTED); + return; + } else { + DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n", + conn->connectpath)); + reply_nterror(req, NT_STATUS_UNSUCCESSFUL); + return; + } + } + + labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2; + + if (!labels) { + data_count = 16; + } else { + data_count = 12+labels_data_count+4; + } + + if (max_data_count<data_count) { + DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) too small (%u) bytes needed!\n", + max_data_count,data_count)); + talloc_destroy(shadow_data->mem_ctx); + reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL); + return; + } + + pdata = nttrans_realloc(ppdata, data_count); + if (pdata == NULL) { + talloc_destroy(shadow_data->mem_ctx); + reply_nterror(req, NT_STATUS_NO_MEMORY); + return; + } + + cur_pdata = pdata; + + /* num_volumes 4 bytes */ + SIVAL(pdata,0,shadow_data->num_volumes); + + if (labels) { + /* num_labels 4 bytes */ + SIVAL(pdata,4,shadow_data->num_volumes); + } + + /* needed_data_count 4 bytes */ + SIVAL(pdata,8,labels_data_count); + + cur_pdata+=12; + + DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n", + shadow_data->num_volumes,fsp->fsp_name)); + if (labels && shadow_data->labels) { + for (i=0;i<shadow_data->num_volumes;i++) { + srvstr_push(pdata, req->flags2, + cur_pdata, shadow_data->labels[i], + 2*sizeof(SHADOW_COPY_LABEL), + STR_UNICODE|STR_TERMINATE); + cur_pdata+=2*sizeof(SHADOW_COPY_LABEL); + DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i])); + } + } + + talloc_destroy(shadow_data->mem_ctx); + + send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, + pdata, data_count); + + return; + } + + case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */ + { + /* pretend this succeeded - + * + * we have to send back a list with all files owned by this SID + * + * but I have to check that --metze + */ + DOM_SID sid; + uid_t uid; + size_t sid_len = MIN(data_count-4,SID_MAX_SIZE); + + DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum)); + + if (!fsp_belongs_conn(conn, req, fsp)) { + return; + } + + /* unknown 4 bytes: this is not the length of the sid :-( */ + /*unknown = IVAL(pdata,0);*/ + + sid_parse(pdata+4,sid_len,&sid); + DEBUGADD(10, ("for SID: %s\n", sid_string_dbg(&sid))); + + if (!sid_to_uid(&sid, &uid)) { + DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n", + sid_string_dbg(&sid), + (unsigned long)sid_len)); + uid = (-1); + } + + /* we can take a look at the find source :-) + * + * find ./ -uid $uid -name '*' is what we need here + * + * + * and send 4bytes len and then NULL terminated unicode strings + * for each file + * + * but I don't know how to deal with the paged results + * (maybe we can hang the result anywhere in the fsp struct) + * + * we don't send all files at once + * and at the next we should *not* start from the beginning, + * so we have to cache the result + * + * --metze + */ + + /* this works for now... */ + send_nt_replies(conn, req, NT_STATUS_OK, NULL, 0, NULL, 0); + return; + } + default: + if (!logged_message) { + logged_message = True; /* Only print this once... */ + DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n", + function)); + } + } + + reply_nterror(req, NT_STATUS_NOT_SUPPORTED); +} + + +#ifdef HAVE_SYS_QUOTAS +/**************************************************************************** + Reply to get user quota +****************************************************************************/ + +static void call_nt_transact_get_user_quota(connection_struct *conn, + struct smb_request *req, + uint16 **ppsetup, + uint32 setup_count, + char **ppparams, + uint32 parameter_count, + char **ppdata, + uint32 data_count, + uint32 max_data_count) +{ + NTSTATUS nt_status = NT_STATUS_OK; + char *params = *ppparams; + char *pdata = *ppdata; + char *entry; + int data_len=0,param_len=0; + int qt_len=0; + int entry_len = 0; + files_struct *fsp = NULL; + uint16 level = 0; + size_t sid_len; + DOM_SID sid; + bool start_enum = True; + SMB_NTQUOTA_STRUCT qt; + SMB_NTQUOTA_LIST *tmp_list; + SMB_NTQUOTA_HANDLE *qt_handle = NULL; + + ZERO_STRUCT(qt); + + /* access check */ + if (conn->server_info->utok.uid != 0) { + DEBUG(1,("get_user_quota: access_denied service [%s] user " + "[%s]\n", lp_servicename(SNUM(conn)), + conn->server_info->unix_name)); + reply_doserror(req, ERRDOS, ERRnoaccess); + return; + } + + /* + * Ensure minimum number of parameters sent. + */ + + if (parameter_count < 4) { + DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count)); + reply_doserror(req, ERRDOS, ERRinvalidparam); + return; + } + + /* maybe we can check the quota_fnum */ + fsp = file_fsp(SVAL(params,0)); + if (!check_fsp_ntquota_handle(conn, req, fsp)) { + DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n")); + reply_nterror(req, NT_STATUS_INVALID_HANDLE); + return; + } + + /* the NULL pointer checking for fsp->fake_file_handle->pd + * is done by CHECK_NTQUOTA_HANDLE_OK() + */ + qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->private_data; + + level = SVAL(params,2); + + /* unknown 12 bytes leading in params */ + + switch (level) { + case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE: + /* seems that we should continue with the enum here --metze */ + + if (qt_handle->quota_list!=NULL && + qt_handle->tmp_list==NULL) { + + /* free the list */ + free_ntquota_list(&(qt_handle->quota_list)); + + /* Realloc the size of parameters and data we will return */ + param_len = 4; + params = nttrans_realloc(ppparams, param_len); + if(params == NULL) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + data_len = 0; + SIVAL(params,0,data_len); + + break; + } + + start_enum = False; + + case TRANSACT_GET_USER_QUOTA_LIST_START: + + if (qt_handle->quota_list==NULL && + qt_handle->tmp_list==NULL) { + start_enum = True; + } + + if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) { + reply_doserror(req, ERRSRV, ERRerror); + return; + } + + /* Realloc the size of parameters and data we will return */ + param_len = 4; + params = nttrans_realloc(ppparams, param_len); + if(params == NULL) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + /* we should not trust the value in max_data_count*/ + max_data_count = MIN(max_data_count,2048); + + pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/ + if(pdata == NULL) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + entry = pdata; + + /* set params Size of returned Quota Data 4 bytes*/ + /* but set it later when we know it */ + + /* for each entry push the data */ + + if (start_enum) { + qt_handle->tmp_list = qt_handle->quota_list; + } + + tmp_list = qt_handle->tmp_list; + + for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)<max_data_count)); + tmp_list=tmp_list->next,entry+=entry_len,qt_len+=entry_len) { + + sid_len = ndr_size_dom_sid( + &tmp_list->quotas->sid, 0); + entry_len = 40 + sid_len; + + /* nextoffset entry 4 bytes */ + SIVAL(entry,0,entry_len); + + /* then the len of the SID 4 bytes */ + SIVAL(entry,4,sid_len); + + /* unknown data 8 bytes SMB_BIG_UINT */ + SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/ + + /* the used disk space 8 bytes SMB_BIG_UINT */ + SBIG_UINT(entry,16,tmp_list->quotas->usedspace); + + /* the soft quotas 8 bytes SMB_BIG_UINT */ + SBIG_UINT(entry,24,tmp_list->quotas->softlim); + + /* the hard quotas 8 bytes SMB_BIG_UINT */ + SBIG_UINT(entry,32,tmp_list->quotas->hardlim); + + /* and now the SID */ + sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid); + } + + qt_handle->tmp_list = tmp_list; + + /* overwrite the offset of the last entry */ + SIVAL(entry-entry_len,0,0); + + data_len = 4+qt_len; + /* overwrite the params quota_data_len */ + SIVAL(params,0,data_len); + + break; + + case TRANSACT_GET_USER_QUOTA_FOR_SID: + + /* unknown 4 bytes IVAL(pdata,0) */ + + if (data_count < 8) { + DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8)); + reply_doserror(req, ERRDOS, ERRunknownlevel); + return; + } + + sid_len = IVAL(pdata,4); + /* Ensure this is less than 1mb. */ + if (sid_len > (1024*1024)) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + if (data_count < 8+sid_len) { + DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len))); + reply_doserror(req, ERRDOS, ERRunknownlevel); + return; + } + + data_len = 4+40+sid_len; + + if (max_data_count < data_len) { + DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n", + max_data_count, data_len)); + param_len = 4; + SIVAL(params,0,data_len); + data_len = 0; + nt_status = NT_STATUS_BUFFER_TOO_SMALL; + break; + } + + sid_parse(pdata+8,sid_len,&sid); + + if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) { + ZERO_STRUCT(qt); + /* + * we have to return zero's in all fields + * instead of returning an error here + * --metze + */ + } + + /* Realloc the size of parameters and data we will return */ + param_len = 4; + params = nttrans_realloc(ppparams, param_len); + if(params == NULL) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + pdata = nttrans_realloc(ppdata, data_len); + if(pdata == NULL) { + reply_doserror(req, ERRDOS, ERRnomem); + return; + } + + entry = pdata; + + /* set params Size of returned Quota Data 4 bytes*/ + SIVAL(params,0,data_len); + + /* nextoffset entry 4 bytes */ + SIVAL(entry,0,0); + + /* then the len of the SID 4 bytes */ + SIVAL(entry,4,sid_len); + + /* unknown data 8 bytes SMB_BIG_UINT */ + SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/ + + /* the used disk space 8 bytes SMB_BIG_UINT */ + SBIG_UINT(entry,16,qt.usedspace); + + /* the soft quotas 8 bytes SMB_BIG_UINT */ + SBIG_UINT(entry,24,qt.softlim); + + /* the hard quotas 8 bytes SMB_BIG_UINT */ + SBIG_UINT(entry,32,qt.hardlim); + + /* and now the SID */ + sid_linearize(entry+40, sid_len, &sid); + + break; + + default: + DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level)); + reply_doserror(req, ERRSRV, ERRerror); + return; + break; + } + + send_nt_replies(conn, req, nt_status, params, param_len, + pdata, data_len); +} + +/**************************************************************************** + Reply to set user quota +****************************************************************************/ + +static void call_nt_transact_set_user_quota(connection_struct *conn, + struct smb_request *req, + uint16 **ppsetup, + uint32 setup_count, + char **ppparams, + uint32 parameter_count, + char **ppdata, + uint32 data_count, + uint32 max_data_count) +{ + char *params = *ppparams; + char *pdata = *ppdata; + int data_len=0,param_len=0; + SMB_NTQUOTA_STRUCT qt; + size_t sid_len; + DOM_SID sid; + files_struct *fsp = NULL; + + ZERO_STRUCT(qt); + + /* access check */ + if (conn->server_info->utok.uid != 0) { + DEBUG(1,("set_user_quota: access_denied service [%s] user " + "[%s]\n", lp_servicename(SNUM(conn)), + conn->server_info->unix_name)); + reply_doserror(req, ERRDOS, ERRnoaccess); + return; + } + + /* + * Ensure minimum number of parameters sent. + */ + + if (parameter_count < 2) { + DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count)); + reply_doserror(req, ERRDOS, ERRinvalidparam); + return; + } + + /* maybe we can check the quota_fnum */ + fsp = file_fsp(SVAL(params,0)); + if (!check_fsp_ntquota_handle(conn, req, fsp)) { + DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n")); + reply_nterror(req, NT_STATUS_INVALID_HANDLE); + return; + } + + if (data_count < 40) { + DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40)); + reply_doserror(req, ERRDOS, ERRunknownlevel); + return; + } + + /* offset to next quota record. + * 4 bytes IVAL(pdata,0) + * unused here... + */ + + /* sid len */ + sid_len = IVAL(pdata,4); + + if (data_count < 40+sid_len) { + DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len)); + reply_doserror(req, ERRDOS, ERRunknownlevel); + return; + } + + /* unknown 8 bytes in pdata + * maybe its the change time in NTTIME + */ + + /* the used space 8 bytes (SMB_BIG_UINT)*/ + qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16); +#ifdef LARGE_SMB_OFF_T + qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32); +#else /* LARGE_SMB_OFF_T */ + if ((IVAL(pdata,20) != 0)&& + ((qt.usedspace != 0xFFFFFFFF)|| + (IVAL(pdata,20)!=0xFFFFFFFF))) { + /* more than 32 bits? */ + reply_doserror(req, ERRDOS, ERRunknownlevel); + return; + } +#endif /* LARGE_SMB_OFF_T */ + + /* the soft quotas 8 bytes (SMB_BIG_UINT)*/ + qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24); +#ifdef LARGE_SMB_OFF_T + qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32); +#else /* LARGE_SMB_OFF_T */ + if ((IVAL(pdata,28) != 0)&& + ((qt.softlim != 0xFFFFFFFF)|| + (IVAL(pdata,28)!=0xFFFFFFFF))) { + /* more than 32 bits? */ + reply_doserror(req, ERRDOS, ERRunknownlevel); + return; + } +#endif /* LARGE_SMB_OFF_T */ + + /* the hard quotas 8 bytes (SMB_BIG_UINT)*/ + qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32); +#ifdef LARGE_SMB_OFF_T + qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32); +#else /* LARGE_SMB_OFF_T */ + if ((IVAL(pdata,36) != 0)&& + ((qt.hardlim != 0xFFFFFFFF)|| + (IVAL(pdata,36)!=0xFFFFFFFF))) { + /* more than 32 bits? */ + reply_doserror(req, ERRDOS, ERRunknownlevel); + return; + } +#endif /* LARGE_SMB_OFF_T */ + + sid_parse(pdata+40,sid_len,&sid); + DEBUGADD(8,("SID: %s\n", sid_string_dbg(&sid))); + + /* 44 unknown bytes left... */ + + if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) { + reply_doserror(req, ERRSRV, ERRerror); + return; + } + + send_nt_replies(conn, req, NT_STATUS_OK, params, param_len, + pdata, data_len); +} +#endif /* HAVE_SYS_QUOTAS */ + +static void handle_nttrans(connection_struct *conn, + struct trans_state *state, + struct smb_request *req) +{ + if (Protocol >= PROTOCOL_NT1) { + req->flags2 |= 0x40; /* IS_LONG_NAME */ + SSVAL(req->inbuf,smb_flg2,req->flags2); + } + + /* Now we must call the relevant NT_TRANS function */ + switch(state->call) { + case NT_TRANSACT_CREATE: + { + START_PROFILE(NT_transact_create); + call_nt_transact_create( + conn, req, + &state->setup, state->setup_count, + &state->param, state->total_param, + &state->data, state->total_data, + state->max_data_return); + END_PROFILE(NT_transact_create); + break; + } + + case NT_TRANSACT_IOCTL: + { + START_PROFILE(NT_transact_ioctl); + call_nt_transact_ioctl( + conn, req, + &state->setup, state->setup_count, + &state->param, state->total_param, + &state->data, state->total_data, + state->max_data_return); + END_PROFILE(NT_transact_ioctl); + break; + } + + case NT_TRANSACT_SET_SECURITY_DESC: + { + START_PROFILE(NT_transact_set_security_desc); + call_nt_transact_set_security_desc( + conn, req, + &state->setup, state->setup_count, + &state->param, state->total_param, + &state->data, state->total_data, + state->max_data_return); + END_PROFILE(NT_transact_set_security_desc); + break; + } + + case NT_TRANSACT_NOTIFY_CHANGE: + { + START_PROFILE(NT_transact_notify_change); + call_nt_transact_notify_change( + conn, req, + &state->setup, state->setup_count, + &state->param, state->total_param, + &state->data, state->total_data, + state->max_data_return, + state->max_param_return); + END_PROFILE(NT_transact_notify_change); + break; + } + + case NT_TRANSACT_RENAME: + { + START_PROFILE(NT_transact_rename); + call_nt_transact_rename( + conn, req, + &state->setup, state->setup_count, + &state->param, state->total_param, + &state->data, state->total_data, + state->max_data_return); + END_PROFILE(NT_transact_rename); + break; + } + + case NT_TRANSACT_QUERY_SECURITY_DESC: + { + START_PROFILE(NT_transact_query_security_desc); + call_nt_transact_query_security_desc( + conn, req, + &state->setup, state->setup_count, + &state->param, state->total_param, + &state->data, state->total_data, + state->max_data_return); + END_PROFILE(NT_transact_query_security_desc); + break; + } + +#ifdef HAVE_SYS_QUOTAS + case NT_TRANSACT_GET_USER_QUOTA: + { + START_PROFILE(NT_transact_get_user_quota); + call_nt_transact_get_user_quota( + conn, req, + &state->setup, state->setup_count, + &state->param, state->total_param, + &state->data, state->total_data, + state->max_data_return); + END_PROFILE(NT_transact_get_user_quota); + break; + } + + case NT_TRANSACT_SET_USER_QUOTA: + { + START_PROFILE(NT_transact_set_user_quota); + call_nt_transact_set_user_quota( + conn, req, + &state->setup, state->setup_count, + &state->param, state->total_param, + &state->data, state->total_data, + state->max_data_return); + END_PROFILE(NT_transact_set_user_quota); + break; + } +#endif /* HAVE_SYS_QUOTAS */ + + default: + /* Error in request */ + DEBUG(0,("handle_nttrans: Unknown request %d in " + "nttrans call\n", state->call)); + reply_doserror(req, ERRSRV, ERRerror); + return; + } + return; +} + +/**************************************************************************** + Reply to a SMBNTtrans. +****************************************************************************/ + +void reply_nttrans(struct smb_request *req) +{ + connection_struct *conn = req->conn; + uint32_t pscnt; + uint32_t psoff; + uint32_t dscnt; + uint32_t dsoff; + uint16 function_code; + NTSTATUS result; + struct trans_state *state; + uint32_t size; + uint32_t av_size; + + START_PROFILE(SMBnttrans); + + if (req->wct < 19) { + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + END_PROFILE(SMBnttrans); + return; + } + + size = smb_len(req->inbuf) + 4; + av_size = smb_len(req->inbuf); + pscnt = IVAL(req->inbuf,smb_nt_ParameterCount); + psoff = IVAL(req->inbuf,smb_nt_ParameterOffset); + dscnt = IVAL(req->inbuf,smb_nt_DataCount); + dsoff = IVAL(req->inbuf,smb_nt_DataOffset); + function_code = SVAL(req->inbuf, smb_nt_Function); + + if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) { + reply_doserror(req, ERRSRV, ERRaccess); + END_PROFILE(SMBnttrans); + return; + } + + result = allow_new_trans(conn->pending_trans, req->mid); + if (!NT_STATUS_IS_OK(result)) { + DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result))); + reply_nterror(req, result); + END_PROFILE(SMBnttrans); + return; + } + + if ((state = TALLOC_P(conn, struct trans_state)) == NULL) { + reply_doserror(req, ERRSRV, ERRaccess); + END_PROFILE(SMBnttrans); + return; + } + + state->cmd = SMBnttrans; + + state->mid = req->mid; + state->vuid = req->vuid; + state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount); + state->data = NULL; + state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount); + state->param = NULL; + state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount); + state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount); + + /* setup count is in *words* */ + state->setup_count = 2*CVAL(req->inbuf,smb_nt_SetupCount); + state->setup = NULL; + state->call = function_code; + + DEBUG(10, ("num_setup=%u, " + "param_total=%u, this_param=%u, max_param=%u, " + "data_total=%u, this_data=%u, max_data=%u, " + "param_offset=%u, data_offset=%u\n", + (unsigned)state->setup_count, + (unsigned)state->total_param, (unsigned)pscnt, + (unsigned)state->max_param_return, + (unsigned)state->total_data, (unsigned)dscnt, + (unsigned)state->max_data_return, + (unsigned)psoff, (unsigned)dsoff)); + + /* + * All nttrans messages we handle have smb_wct == 19 + + * state->setup_count. Ensure this is so as a sanity check. + */ + + if(req->wct != 19 + (state->setup_count/2)) { + DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n", + req->wct, 19 + (state->setup_count/2))); + goto bad_param; + } + + /* Don't allow more than 128mb for each value. */ + if ((state->total_data > (1024*1024*128)) || + (state->total_param > (1024*1024*128))) { + reply_doserror(req, ERRDOS, ERRnomem); + END_PROFILE(SMBnttrans); + return; + } + + if ((dscnt > state->total_data) || (pscnt > state->total_param)) + goto bad_param; + + if (state->total_data) { + /* Can't use talloc here, the core routines do realloc on the + * params and data. */ + if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) { + DEBUG(0,("reply_nttrans: data malloc fail for %u " + "bytes !\n", (unsigned int)state->total_data)); + TALLOC_FREE(state); + reply_doserror(req, ERRDOS, ERRnomem); + END_PROFILE(SMBnttrans); + return; + } + + if (dscnt > state->total_data || + dsoff+dscnt < dsoff) { + goto bad_param; + } + + if (dsoff > av_size || + dscnt > av_size || + dsoff+dscnt > av_size) { + goto bad_param; + } + + memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt); + } + + if (state->total_param) { + /* Can't use talloc here, the core routines do realloc on the + * params and data. */ + if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) { + DEBUG(0,("reply_nttrans: param malloc fail for %u " + "bytes !\n", (unsigned int)state->total_param)); + SAFE_FREE(state->data); + TALLOC_FREE(state); + reply_doserror(req, ERRDOS, ERRnomem); + END_PROFILE(SMBnttrans); + return; + } + + if (pscnt > state->total_param || + psoff+pscnt < psoff) { + goto bad_param; + } + + if (psoff > av_size || + pscnt > av_size || + psoff+pscnt > av_size) { + goto bad_param; + } + + memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt); + } + + state->received_data = dscnt; + state->received_param = pscnt; + + if(state->setup_count > 0) { + DEBUG(10,("reply_nttrans: state->setup_count = %d\n", + state->setup_count)); + state->setup = (uint16 *)TALLOC(state, state->setup_count); + if (state->setup == NULL) { + DEBUG(0,("reply_nttrans : Out of memory\n")); + SAFE_FREE(state->data); + SAFE_FREE(state->param); + TALLOC_FREE(state); + reply_doserror(req, ERRDOS, ERRnomem); + END_PROFILE(SMBnttrans); + return; + } + + if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) || + (smb_nt_SetupStart + state->setup_count < state->setup_count)) { + goto bad_param; + } + if (smb_nt_SetupStart + state->setup_count > size) { + goto bad_param; + } + + memcpy( state->setup, &req->inbuf[smb_nt_SetupStart], + state->setup_count); + dump_data(10, (uint8 *)state->setup, state->setup_count); + } + + if ((state->received_data == state->total_data) && + (state->received_param == state->total_param)) { + handle_nttrans(conn, state, req); + SAFE_FREE(state->param); + SAFE_FREE(state->data); + TALLOC_FREE(state); + END_PROFILE(SMBnttrans); + return; + } + + DLIST_ADD(conn->pending_trans, state); + + /* We need to send an interim response then receive the rest + of the parameter/data bytes */ + reply_outbuf(req, 0, 0); + show_msg((char *)req->outbuf); + END_PROFILE(SMBnttrans); + return; + + bad_param: + + DEBUG(0,("reply_nttrans: invalid trans parameters\n")); + SAFE_FREE(state->data); + SAFE_FREE(state->param); + TALLOC_FREE(state); + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + END_PROFILE(SMBnttrans); + return; +} + +/**************************************************************************** + Reply to a SMBnttranss + ****************************************************************************/ + +void reply_nttranss(struct smb_request *req) +{ + connection_struct *conn = req->conn; + uint32_t pcnt,poff,dcnt,doff,pdisp,ddisp; + struct trans_state *state; + uint32_t av_size; + uint32_t size; + + START_PROFILE(SMBnttranss); + + show_msg((char *)req->inbuf); + + if (req->wct < 18) { + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + END_PROFILE(SMBnttranss); + return; + } + + for (state = conn->pending_trans; state != NULL; + state = state->next) { + if (state->mid == req->mid) { + break; + } + } + + if ((state == NULL) || (state->cmd != SMBnttrans)) { + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + END_PROFILE(SMBnttranss); + return; + } + + /* Revise state->total_param and state->total_data in case they have + changed downwards */ + if (IVAL(req->inbuf, smb_nts_TotalParameterCount) + < state->total_param) { + state->total_param = IVAL(req->inbuf, + smb_nts_TotalParameterCount); + } + if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) { + state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount); + } + + size = smb_len(req->inbuf) + 4; + av_size = smb_len(req->inbuf); + + pcnt = IVAL(req->inbuf,smb_nts_ParameterCount); + poff = IVAL(req->inbuf, smb_nts_ParameterOffset); + pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement); + + dcnt = IVAL(req->inbuf, smb_nts_DataCount); + ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement); + doff = IVAL(req->inbuf, smb_nts_DataOffset); + + state->received_param += pcnt; + state->received_data += dcnt; + + if ((state->received_data > state->total_data) || + (state->received_param > state->total_param)) + goto bad_param; + + if (pcnt) { + if (pdisp > state->total_param || + pcnt > state->total_param || + pdisp+pcnt > state->total_param || + pdisp+pcnt < pdisp) { + goto bad_param; + } + + if (poff > av_size || + pcnt > av_size || + poff+pcnt > av_size || + poff+pcnt < poff) { + goto bad_param; + } + + memcpy(state->param+pdisp, smb_base(req->inbuf)+poff, + pcnt); + } + + if (dcnt) { + if (ddisp > state->total_data || + dcnt > state->total_data || + ddisp+dcnt > state->total_data || + ddisp+dcnt < ddisp) { + goto bad_param; + } + + if (ddisp > av_size || + dcnt > av_size || + ddisp+dcnt > av_size || + ddisp+dcnt < ddisp) { + goto bad_param; + } + + memcpy(state->data+ddisp, smb_base(req->inbuf)+doff, + dcnt); + } + + if ((state->received_param < state->total_param) || + (state->received_data < state->total_data)) { + END_PROFILE(SMBnttranss); + return; + } + + /* + * construct_reply_common will copy smb_com from inbuf to + * outbuf. SMBnttranss is wrong here. + */ + SCVAL(req->inbuf,smb_com,SMBnttrans); + + handle_nttrans(conn, state, req); + + DLIST_REMOVE(conn->pending_trans, state); + SAFE_FREE(state->data); + SAFE_FREE(state->param); + TALLOC_FREE(state); + END_PROFILE(SMBnttranss); + return; + + bad_param: + + DEBUG(0,("reply_nttranss: invalid trans parameters\n")); + DLIST_REMOVE(conn->pending_trans, state); + SAFE_FREE(state->data); + SAFE_FREE(state->param); + TALLOC_FREE(state); + reply_nterror(req, NT_STATUS_INVALID_PARAMETER); + END_PROFILE(SMBnttranss); + return; +} |