/*
* fs/cifs/cifssmb.c
*
- * Copyright (C) International Business Machines Corp., 2002,2008
+ * Copyright (C) International Business Machines Corp., 2002,2009
* Author(s): Steve French (sfrench@us.ibm.com)
*
* Contains the routines for constructing the SMB PDUs themselves
#endif /* CONFIG_CIFS_WEAK_PW_HASH */
#endif /* CIFS_POSIX */
-
/* Mark as invalid, all open files on tree connections since they
were closed when session to server was lost */
static void mark_open_files_invalid(struct cifsTconInfo *pTcon)
write_lock(&GlobalSMBSeslock);
list_for_each_safe(tmp, tmp1, &pTcon->openFileList) {
open_file = list_entry(tmp, struct cifsFileInfo, tlist);
- if (open_file)
- open_file->invalidHandle = true;
+ open_file->invalidHandle = true;
}
write_unlock(&GlobalSMBSeslock);
/* BB Add call to invalidate_inodes(sb) for all superblocks mounted
/* need to prevent multiple threads trying to
simultaneously reconnect the same SMB session */
down(&tcon->ses->sesSem);
- if (tcon->ses->status == CifsNeedReconnect)
+ if (tcon->ses->need_reconnect)
rc = cifs_setup_session(0, tcon->ses,
nls_codepage);
- if (!rc && (tcon->tidStatus == CifsNeedReconnect)) {
+ if (!rc && (tcon->need_reconnect)) {
mark_open_files_invalid(tcon);
rc = CIFSTCon(0, tcon->ses, tcon->treeName,
tcon, nls_codepage);
/* need to prevent multiple threads trying to
simultaneously reconnect the same SMB session */
down(&tcon->ses->sesSem);
- if (tcon->ses->status == CifsNeedReconnect)
+ if (tcon->ses->need_reconnect)
rc = cifs_setup_session(0, tcon->ses,
nls_codepage);
- if (!rc && (tcon->tidStatus == CifsNeedReconnect)) {
+ if (!rc && (tcon->need_reconnect)) {
mark_open_files_invalid(tcon);
rc = CIFSTCon(0, tcon->ses, tcon->treeName,
tcon, nls_codepage);
server->maxReq = le16_to_cpu(rsp->MaxMpxCount);
server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize),
(__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE);
+ server->max_vcs = le16_to_cpu(rsp->MaxNumberVcs);
GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey);
/* even though we do not use raw we might as well set this
accurately, in case we ever find a need for it */
if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) {
- server->maxRw = 0xFF00;
+ server->max_rw = 0xFF00;
server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE;
} else {
- server->maxRw = 0;/* we do not need to use raw anyway */
+ server->max_rw = 0;/* do not need to use raw anyway */
server->capabilities = CAP_MPX_MODE;
}
tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone);
/* probably no need to store and check maxvcs */
server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize),
(__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE);
- server->maxRw = le32_to_cpu(pSMBr->MaxRawSize);
+ server->max_rw = le32_to_cpu(pSMBr->MaxRawSize);
cFYI(DBG2, ("Max buf = %d", ses->server->maxBuf));
GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey);
server->capabilities = le32_to_cpu(pSMBr->Capabilities);
rc = -EIO;
goto neg_err_exit;
}
-
- if (server->socketUseCount.counter > 1) {
+ read_lock(&cifs_tcp_ses_lock);
+ if (server->srv_count > 1) {
+ read_unlock(&cifs_tcp_ses_lock);
if (memcmp(server->server_GUID,
pSMBr->u.extended_response.
GUID, 16) != 0) {
pSMBr->u.extended_response.GUID,
16);
}
- } else
+ } else {
+ read_unlock(&cifs_tcp_ses_lock);
memcpy(server->server_GUID,
pSMBr->u.extended_response.GUID, 16);
+ }
if (count == 16) {
server->secType = RawNTLMSSP;
SecurityBlob,
count - 16,
&server->secType);
- if (rc == 1) {
+ if (rc == 1)
rc = 0;
- } else {
+ else
rc = -EINVAL;
- }
}
} else
server->capabilities &= ~CAP_EXTENDED_SECURITY;
int rc = 0;
cFYI(1, ("In tree disconnect"));
- /*
- * If last user of the connection and
- * connection alive - disconnect it
- * If this is the last connection on the server session disconnect it
- * (and inside session disconnect we should check if tcp socket needs
- * to be freed and kernel thread woken up).
- */
- if (tcon)
- down(&tcon->tconSem);
- else
- return -EIO;
- atomic_dec(&tcon->useCount);
- if (atomic_read(&tcon->useCount) > 0) {
- up(&tcon->tconSem);
- return -EBUSY;
- }
+ /* BB: do we need to check this? These should never be NULL. */
+ if ((tcon->ses == NULL) || (tcon->ses->server == NULL))
+ return -EIO;
- /* No need to return error on this operation if tid invalidated and
- closed on server already e.g. due to tcp session crashing */
- if (tcon->tidStatus == CifsNeedReconnect) {
- up(&tcon->tconSem);
+ /*
+ * No need to return error on this operation if tid invalidated and
+ * closed on server already e.g. due to tcp session crashing. Also,
+ * the tcon is no longer on the list, so no need to take lock before
+ * checking this.
+ */
+ if (tcon->need_reconnect)
return 0;
- }
- if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) {
- up(&tcon->tconSem);
- return -EIO;
- }
rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon,
(void **)&smb_buffer);
- if (rc) {
- up(&tcon->tconSem);
+ if (rc)
return rc;
- }
rc = SendReceiveNoRsp(xid, tcon->ses, smb_buffer, 0);
if (rc)
cFYI(1, ("Tree disconnect failed %d", rc));
- up(&tcon->tconSem);
-
/* No need to return error on this operation if tid invalidated and
- closed on server already e.g. due to tcp session crashing */
+ closed on server already e.g. due to tcp session crashing */
if (rc == -EAGAIN)
rc = 0;
int rc = 0;
cFYI(1, ("In SMBLogoff for session disconnect"));
- if (ses)
- down(&ses->sesSem);
- else
+
+ /*
+ * BB: do we need to check validity of ses and server? They should
+ * always be valid since we have an active reference. If not, that
+ * should probably be a BUG()
+ */
+ if (!ses || !ses->server)
return -EIO;
- atomic_dec(&ses->inUse);
- if (atomic_read(&ses->inUse) > 0) {
- up(&ses->sesSem);
- return -EBUSY;
- }
+ down(&ses->sesSem);
+ if (ses->need_reconnect)
+ goto session_already_dead; /* no need to send SMBlogoff if uid
+ already closed due to reconnect */
rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB);
if (rc) {
up(&ses->sesSem);
return rc;
}
- if (ses->server) {
- pSMB->hdr.Mid = GetNextMid(ses->server);
+ pSMB->hdr.Mid = GetNextMid(ses->server);
- if (ses->server->secMode &
+ if (ses->server->secMode &
(SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
- }
pSMB->hdr.Uid = ses->Suid;
pSMB->AndXCommand = 0xFF;
rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0);
- if (ses->server) {
- atomic_dec(&ses->server->socketUseCount);
- if (atomic_read(&ses->server->socketUseCount) == 0) {
- spin_lock(&GlobalMid_Lock);
- ses->server->tcpStatus = CifsExiting;
- spin_unlock(&GlobalMid_Lock);
- rc = -ESHUTDOWN;
- }
- }
+session_already_dead:
up(&ses->sesSem);
/* if session dead then we do not need to do ulogoff,
cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile));
pfile_info->EndOfFile = pfile_info->AllocationSize;
pfile_info->NumberOfLinks = cpu_to_le32(1);
+ pfile_info->DeletePending = 0;
}
}
if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction)
*pOplock |= CIFS_CREATE_ACTION;
if (pfile_info) {
- memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime,
- 36 /* CreationTime to Attributes */);
- /* the file_info buf is endian converted by caller */
- pfile_info->AllocationSize = pSMBr->AllocationSize;
- pfile_info->EndOfFile = pSMBr->EndOfFile;
- pfile_info->NumberOfLinks = cpu_to_le32(1);
+ memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime,
+ 36 /* CreationTime to Attributes */);
+ /* the file_info buf is endian converted by caller */
+ pfile_info->AllocationSize = pSMBr->AllocationSize;
+ pfile_info->EndOfFile = pSMBr->EndOfFile;
+ pfile_info->NumberOfLinks = cpu_to_le32(1);
+ pfile_info->DeletePending = 0;
}
}
cFYI(1, ("Reading %d bytes on fid %d", count, netfid));
if (tcon->ses->capabilities & CAP_LARGE_FILES)
wct = 12;
- else
+ else {
wct = 10; /* old style read */
+ if ((lseek >> 32) > 0) {
+ /* can not handle this big offset for old */
+ return -EIO;
+ }
+ }
*nbytes = 0;
rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB);
pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF);
if (wct == 12)
pSMB->OffsetHigh = cpu_to_le32(lseek >> 32);
- else if ((lseek >> 32) > 0) /* can not handle this big offset for old */
- return -EIO;
pSMB->Remaining = 0;
pSMB->MaxCount = cpu_to_le16(count & 0xFFFF);
__u32 bytes_sent;
__u16 byte_count;
- /* cFYI(1,("write at %lld %d bytes",offset,count));*/
+ /* cFYI(1, ("write at %lld %d bytes", offset, count));*/
if (tcon->ses == NULL)
return -ECONNABORTED;
if (tcon->ses->capabilities & CAP_LARGE_FILES)
wct = 14;
- else
+ else {
wct = 12;
+ if ((offset >> 32) > 0) {
+ /* can not handle big offset for old srv */
+ return -EIO;
+ }
+ }
rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB,
(void **) &pSMBr);
pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF);
if (wct == 14)
pSMB->OffsetHigh = cpu_to_le32(offset >> 32);
- else if ((offset >> 32) > 0) /* can not handle big offset for old srv */
- return -EIO;
pSMB->Reserved = 0xFFFFFFFF;
pSMB->WriteMode = 0;
pSMB->DataOffset =
cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4);
if (buf)
- memcpy(pSMB->Data, buf, bytes_sent);
+ memcpy(pSMB->Data, buf, bytes_sent);
else if (ubuf) {
if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) {
cifs_buf_release(pSMB);
int smb_hdr_len;
int resp_buf_type = 0;
+ *nbytes = 0;
+
cFYI(1, ("write2 at %lld %d bytes", (long long)offset, count));
- if (tcon->ses->capabilities & CAP_LARGE_FILES)
+ if (tcon->ses->capabilities & CAP_LARGE_FILES) {
wct = 14;
- else
+ } else {
wct = 12;
+ if ((offset >> 32) > 0) {
+ /* can not handle big offset for old srv */
+ return -EIO;
+ }
+ }
rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB);
if (rc)
return rc;
pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF);
if (wct == 14)
pSMB->OffsetHigh = cpu_to_le32(offset >> 32);
- else if ((offset >> 32) > 0) /* can not handle big offset for old srv */
- return -EIO;
pSMB->Reserved = 0xFFFFFFFF;
pSMB->WriteMode = 0;
pSMB->Remaining = 0;
cifs_stats_inc(&tcon->num_writes);
if (rc) {
cFYI(1, ("Send error Write2 = %d", rc));
- *nbytes = 0;
} else if (resp_buf_type == 0) {
/* presumably this can not happen, but best to be safe */
rc = -EIO;
- *nbytes = 0;
} else {
WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base;
*nbytes = le16_to_cpu(pSMBr->CountHigh);
{
int rc = 0;
LOCK_REQ *pSMB = NULL;
- LOCK_RSP *pSMBr = NULL;
+/* LOCK_RSP *pSMBr = NULL; */ /* No response data other than rc to parse */
int bytes_returned;
int timeout = 0;
__u16 count;
if (rc)
return rc;
- pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */
-
if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) {
timeout = CIFS_ASYNC_OP; /* no response expected */
pSMB->Timeout = 0;
if (waitFlag) {
rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned);
+ (struct smb_hdr *) pSMB, &bytes_returned);
cifs_small_buf_release(pSMB);
} else {
rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB,
rc = -EIO; /* bad smb */
goto plk_err_exit;
}
- if (pLockData == NULL) {
- rc = -EINVAL;
- goto plk_err_exit;
- }
data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
data_count = le16_to_cpu(pSMBr->t2.DataCount);
if (data_count < sizeof(struct cifs_posix_lock)) {
}
int
+CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon, int smb_file_id)
+{
+ int rc = 0;
+ FLUSH_REQ *pSMB = NULL;
+ cFYI(1, ("In CIFSSMBFlush"));
+
+ rc = small_smb_init(SMB_COM_FLUSH, 1, tcon, (void **) &pSMB);
+ if (rc)
+ return rc;
+
+ pSMB->FileID = (__u16) smb_file_id;
+ pSMB->ByteCount = 0;
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
+ cifs_stats_inc(&tcon->num_flushes);
+ if (rc)
+ cERROR(1, ("Send error in Flush = %d", rc));
+
+ return rc;
+}
+
+int
CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
const char *fromName, const char *toName,
const struct nls_table *nls_codepage, int remap)
}
int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
- int netfid, char *target_name,
+ int netfid, const char *target_name,
const struct nls_table *nls_codepage, int remap)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
remap);
}
rename_info->target_name_len = cpu_to_le32(2 * len_of_str);
- count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2;
+ count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str);
byte_count += count;
pSMB->DataCount = cpu_to_le16(count);
pSMB->TotalDataCount = pSMB->DataCount;
cFYI(1, ("Send error in copy = %d with %d files copied",
rc, le16_to_cpu(pSMBr->CopyCount)));
}
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto copyRetry;
if (rc)
cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc));
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto createSymLinkRetry;
PATH_MAX, nls_codepage, remap);
name_len++; /* trailing null */
name_len *= 2;
- pSMB->OldFileName[name_len] = 0; /* pad */
- pSMB->OldFileName[name_len + 1] = 0x04;
+
+ /* protocol specifies ASCII buffer format (0x04) for unicode */
+ pSMB->OldFileName[name_len] = 0x04;
+ pSMB->OldFileName[name_len + 1] = 0x00; /* pad */
name_len2 =
cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2],
toName, PATH_MAX, nls_codepage, remap);
int
CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName,
- char *symlinkinfo, const int buflen,
+ const unsigned char *searchName, char **symlinkinfo,
const struct nls_table *nls_codepage)
{
/* SMB_QUERY_FILE_UNIX_LINK */
int bytes_returned;
int name_len;
__u16 params, byte_count;
+ char *data_start;
cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName));
/* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 2))
/* BB also check enough total bytes returned */
- rc = -EIO; /* bad smb */
+ if (rc || (pSMBr->ByteCount < 2))
+ rc = -EIO;
else {
- __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- __u16 count = le16_to_cpu(pSMBr->t2.DataCount);
+ bool is_unicode;
+ u16 count = le16_to_cpu(pSMBr->t2.DataCount);
+
+ data_start = ((char *) &pSMBr->hdr.Protocol) +
+ le16_to_cpu(pSMBr->t2.DataOffset);
+
+ if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
+ is_unicode = true;
+ else
+ is_unicode = false;
- if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len = UniStrnlen((wchar_t *) ((char *)
- &pSMBr->hdr.Protocol + data_offset),
- min_t(const int, buflen, count) / 2);
/* BB FIXME investigate remapping reserved chars here */
- cifs_strfromUCS_le(symlinkinfo,
- (__le16 *) ((char *)&pSMBr->hdr.Protocol
- + data_offset),
- name_len, nls_codepage);
- } else {
- strncpy(symlinkinfo,
- (char *) &pSMBr->hdr.Protocol +
- data_offset,
- min_t(const int, buflen, count));
- }
- symlinkinfo[buflen] = 0;
- /* just in case so calling code does not go off the end of buffer */
+ *symlinkinfo = cifs_strndup_from_ucs(data_start, count,
+ is_unicode, nls_codepage);
+ if (!symlinkinfo)
+ rc = -ENOMEM;
}
}
cifs_buf_release(pSMB);
/* BB remember to free buffer if error BB */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc == 0) {
+ unsigned int lnoff;
+
if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
psrch_inf->unicode = true;
else
le16_to_cpu(parms->SearchCount);
psrch_inf->index_of_last_entry = 2 /* skip . and .. */ +
psrch_inf->entries_in_buffer;
+ lnoff = le16_to_cpu(parms->LastNameOffset);
+ if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE <
+ lnoff) {
+ cERROR(1, ("ignoring corrupt resume name"));
+ psrch_inf->last_entry = NULL;
+ return rc;
+ }
+
+ psrch_inf->last_entry = psrch_inf->srch_entries_start +
+ lnoff;
+
*pnetfid = parms->SearchHandle;
} else {
cifs_buf_release(pSMB);
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc == 0) {
+ unsigned int lnoff;
+
/* BB fixme add lock for file (srch_info) struct here */
if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
psrch_inf->unicode = true;
le16_to_cpu(parms->SearchCount);
psrch_inf->index_of_last_entry +=
psrch_inf->entries_in_buffer;
+ lnoff = le16_to_cpu(parms->LastNameOffset);
+ if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE <
+ lnoff) {
+ cERROR(1, ("ignoring corrupt resume name"));
+ psrch_inf->last_entry = NULL;
+ return rc;
+ } else
+ psrch_inf->last_entry =
+ psrch_inf->srch_entries_start + lnoff;
+
/* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",
psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry)); */
}
pfinfo = (struct file_internal_info *)
(data_offset + (char *) &pSMBr->hdr.Protocol);
- *inode_number = pfinfo->UniqueId;
+ *inode_number = le64_to_cpu(pfinfo->UniqueId);
}
}
GetInodeNumOut:
return rc;
}
+/* parses DFS refferal V3 structure
+ * caller is responsible for freeing target_nodes
+ * returns:
+ * on success - 0
+ * on failure - errno
+ */
+static int
+parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr,
+ unsigned int *num_of_nodes,
+ struct dfs_info3_param **target_nodes,
+ const struct nls_table *nls_codepage, int remap,
+ const char *searchName)
+{
+ int i, rc = 0;
+ char *data_end;
+ bool is_unicode;
+ struct dfs_referral_level_3 *ref;
+
+ if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
+ is_unicode = true;
+ else
+ is_unicode = false;
+ *num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals);
+
+ if (*num_of_nodes < 1) {
+ cERROR(1, ("num_referrals: must be at least > 0,"
+ "but we get num_referrals = %d\n", *num_of_nodes));
+ rc = -EINVAL;
+ goto parse_DFS_referrals_exit;
+ }
+
+ ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals);
+ if (ref->VersionNumber != cpu_to_le16(3)) {
+ cERROR(1, ("Referrals of V%d version are not supported,"
+ "should be V3", le16_to_cpu(ref->VersionNumber)));
+ rc = -EINVAL;
+ goto parse_DFS_referrals_exit;
+ }
+
+ /* get the upper boundary of the resp buffer */
+ data_end = (char *)(&(pSMBr->PathConsumed)) +
+ le16_to_cpu(pSMBr->t2.DataCount);
+
+ cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n",
+ *num_of_nodes,
+ le32_to_cpu(pSMBr->DFSFlags)));
+
+ *target_nodes = kzalloc(sizeof(struct dfs_info3_param) *
+ *num_of_nodes, GFP_KERNEL);
+ if (*target_nodes == NULL) {
+ cERROR(1, ("Failed to allocate buffer for target_nodes\n"));
+ rc = -ENOMEM;
+ goto parse_DFS_referrals_exit;
+ }
+
+ /* collect neccessary data from referrals */
+ for (i = 0; i < *num_of_nodes; i++) {
+ char *temp;
+ int max_len;
+ struct dfs_info3_param *node = (*target_nodes)+i;
+
+ node->flags = le32_to_cpu(pSMBr->DFSFlags);
+ if (is_unicode) {
+ __le16 *tmp = kmalloc(strlen(searchName)*2 + 2,
+ GFP_KERNEL);
+ cifsConvertToUCS((__le16 *) tmp, searchName,
+ PATH_MAX, nls_codepage, remap);
+ node->path_consumed = cifs_ucs2_bytes(tmp,
+ le16_to_cpu(pSMBr->PathConsumed),
+ nls_codepage);
+ kfree(tmp);
+ } else
+ node->path_consumed = le16_to_cpu(pSMBr->PathConsumed);
+
+ node->server_type = le16_to_cpu(ref->ServerType);
+ node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags);
+
+ /* copy DfsPath */
+ temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset);
+ max_len = data_end - temp;
+ node->path_name = cifs_strndup_from_ucs(temp, max_len,
+ is_unicode, nls_codepage);
+ if (IS_ERR(node->path_name)) {
+ rc = PTR_ERR(node->path_name);
+ node->path_name = NULL;
+ goto parse_DFS_referrals_exit;
+ }
+
+ /* copy link target UNC */
+ temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset);
+ max_len = data_end - temp;
+ node->node_name = cifs_strndup_from_ucs(temp, max_len,
+ is_unicode, nls_codepage);
+ if (IS_ERR(node->node_name)) {
+ rc = PTR_ERR(node->node_name);
+ node->node_name = NULL;
+ goto parse_DFS_referrals_exit;
+ }
+ }
+
+parse_DFS_referrals_exit:
+ if (rc) {
+ free_dfs_info_array(*target_nodes, *num_of_nodes);
+ *target_nodes = NULL;
+ *num_of_nodes = 0;
+ }
+ return rc;
+}
+
int
CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
const unsigned char *searchName,
/* TRANS2_GET_DFS_REFERRAL */
TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL;
TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL;
- struct dfs_referral_level_3 *referrals = NULL;
int rc = 0;
int bytes_returned;
int name_len;
- unsigned int i;
- char *temp;
__u16 params, byte_count;
*num_of_nodes = 0;
*target_nodes = NULL;
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
/* BB Also check if enough total bytes returned? */
- if (rc || (pSMBr->ByteCount < 17))
+ if (rc || (pSMBr->ByteCount < 17)) {
rc = -EIO; /* bad smb */
- else {
- __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount);
-
- cFYI(1, ("Decoding GetDFSRefer response BCC: %d Offset %d",
- pSMBr->ByteCount, data_offset));
- referrals =
- (struct dfs_referral_level_3 *)
- (8 /* sizeof start of data block */ +
- data_offset +
- (char *) &pSMBr->hdr.Protocol);
- cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n"
- "for referral one refer size: 0x%x srv "
- "type: 0x%x refer flags: 0x%x ttl: 0x%x",
- le16_to_cpu(pSMBr->NumberOfReferrals),
- le16_to_cpu(pSMBr->DFSFlags),
- le16_to_cpu(referrals->ReferralSize),
- le16_to_cpu(referrals->ServerType),
- le16_to_cpu(referrals->ReferralFlags),
- le16_to_cpu(referrals->TimeToLive)));
- /* BB This field is actually two bytes in from start of
- data block so we could do safety check that DataBlock
- begins at address of pSMBr->NumberOfReferrals */
- *num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals);
-
- /* BB Fix below so can return more than one referral */
- if (*num_of_nodes > 1)
- *num_of_nodes = 1;
-
- /* get the length of the strings describing refs */
- name_len = 0;
- for (i = 0; i < *num_of_nodes; i++) {
- /* make sure that DfsPathOffset not past end */
- __u16 offset = le16_to_cpu(referrals->DfsPathOffset);
- if (offset > data_count) {
- /* if invalid referral, stop here and do
- not try to copy any more */
- *num_of_nodes = i;
- break;
- }
- temp = ((char *)referrals) + offset;
+ goto GetDFSRefExit;
+ }
- if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len += UniStrnlen((wchar_t *)temp,
- data_count);
- } else {
- name_len += strnlen(temp, data_count);
- }
- referrals++;
- /* BB add check that referral pointer does
- not fall off end PDU */
- }
- /* BB add check for name_len bigger than bcc */
- *target_nodes =
- kmalloc(name_len+1+(*num_of_nodes),
- GFP_KERNEL);
- if (*target_nodes == NULL) {
- rc = -ENOMEM;
- goto GetDFSRefExit;
- }
+ cFYI(1, ("Decoding GetDFSRefer response BCC: %d Offset %d",
+ pSMBr->ByteCount,
+ le16_to_cpu(pSMBr->t2.DataOffset)));
- referrals = (struct dfs_referral_level_3 *)
- (8 /* sizeof data hdr */ + data_offset +
- (char *) &pSMBr->hdr.Protocol);
+ /* parse returned result into more usable form */
+ rc = parse_DFS_referrals(pSMBr, num_of_nodes,
+ target_nodes, nls_codepage, remap,
+ searchName);
- for (i = 0; i < *num_of_nodes; i++) {
- temp = ((char *)referrals) +
- le16_to_cpu(referrals->DfsPathOffset);
- /* BB update target_uncs pointers */
- referrals++;
- }
- }
GetDFSRefExit:
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto getDFSRetry;
time and resort to the original setpathinfo level which takes the ancient
DOS time format with 2 second granularity */
int
-CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
- const FILE_BASIC_INFO *data, __u16 fid)
+CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
+ const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
char *data_offset;
if (rc)
return rc;
- /* At this point there is no need to override the current pid
- with the pid of the opener, but that could change if we someday
- use an existing handle (rather than opening one on the fly) */
- /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
- pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/
+ pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
+ pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));
params = 6;
pSMB->MaxSetupCount = 0;
return rc;
}
+int
+CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon,
+ bool delete_file, __u16 fid, __u32 pid_of_opener)
+{
+ struct smb_com_transaction2_sfi_req *pSMB = NULL;
+ char *data_offset;
+ int rc = 0;
+ __u16 params, param_offset, offset, byte_count, count;
+
+ cFYI(1, ("Set File Disposition (via SetFileInfo)"));
+ rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB);
+
+ if (rc)
+ return rc;
+
+ pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
+ pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));
+
+ params = 6;
+ pSMB->MaxSetupCount = 0;
+ pSMB->Reserved = 0;
+ pSMB->Flags = 0;
+ pSMB->Timeout = 0;
+ pSMB->Reserved2 = 0;
+ param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
+ offset = param_offset + params;
+
+ data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
+
+ count = 1;
+ pSMB->MaxParameterCount = cpu_to_le16(2);
+ /* BB find max SMB PDU from sess */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
+ pSMB->SetupCount = 1;
+ pSMB->Reserved3 = 0;
+ pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
+ byte_count = 3 /* pad */ + params + count;
+ pSMB->DataCount = cpu_to_le16(count);
+ pSMB->ParameterCount = cpu_to_le16(params);
+ pSMB->TotalDataCount = pSMB->DataCount;
+ pSMB->TotalParameterCount = pSMB->ParameterCount;
+ pSMB->ParameterOffset = cpu_to_le16(param_offset);
+ pSMB->DataOffset = cpu_to_le16(offset);
+ pSMB->Fid = fid;
+ pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_DISPOSITION_INFO);
+ pSMB->Reserved4 = 0;
+ pSMB->hdr.smb_buf_length += byte_count;
+ pSMB->ByteCount = cpu_to_le16(byte_count);
+ *data_offset = delete_file ? 1 : 0;
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
+ if (rc)
+ cFYI(1, ("Send error in SetFileDisposition = %d", rc));
+
+ return rc;
+}
int
-CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName,
- const FILE_BASIC_INFO *data,
- const struct nls_table *nls_codepage, int remap)
+CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
+ const char *fileName, const FILE_BASIC_INFO *data,
+ const struct nls_table *nls_codepage, int remap)
{
TRANSACTION2_SPI_REQ *pSMB = NULL;
TRANSACTION2_SPI_RSP *pSMBr = NULL;
#endif /* temporarily unneeded SetAttr legacy function */
int
-CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon,
- char *fileName, __u64 mode, __u64 uid, __u64 gid,
- dev_t device, const struct nls_table *nls_codepage,
- int remap)
+CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *tcon, char *fileName,
+ const struct cifs_unix_set_info_args *args,
+ const struct nls_table *nls_codepage, int remap)
{
TRANSACTION2_SPI_REQ *pSMB = NULL;
TRANSACTION2_SPI_RSP *pSMBr = NULL;
int bytes_returned = 0;
FILE_UNIX_BASIC_INFO *data_offset;
__u16 params, param_offset, offset, count, byte_count;
+ __u64 mode = args->mode;
cFYI(1, ("In SetUID/GID/Mode"));
setPermsRetry:
set file size and do not want to truncate file size to zero
accidently as happened on one Samba server beta by putting
zero instead of -1 here */
- data_offset->EndOfFile = NO_CHANGE_64;
- data_offset->NumOfBytes = NO_CHANGE_64;
- data_offset->LastStatusChange = NO_CHANGE_64;
- data_offset->LastAccessTime = NO_CHANGE_64;
- data_offset->LastModificationTime = NO_CHANGE_64;
- data_offset->Uid = cpu_to_le64(uid);
- data_offset->Gid = cpu_to_le64(gid);
+ data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64);
+ data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64);
+ data_offset->LastStatusChange = cpu_to_le64(args->ctime);
+ data_offset->LastAccessTime = cpu_to_le64(args->atime);
+ data_offset->LastModificationTime = cpu_to_le64(args->mtime);
+ data_offset->Uid = cpu_to_le64(args->uid);
+ data_offset->Gid = cpu_to_le64(args->gid);
/* better to leave device as zero when it is */
- data_offset->DevMajor = cpu_to_le64(MAJOR(device));
- data_offset->DevMinor = cpu_to_le64(MINOR(device));
+ data_offset->DevMajor = cpu_to_le64(MAJOR(args->device));
+ data_offset->DevMinor = cpu_to_le64(MINOR(args->device));
data_offset->Permissions = cpu_to_le64(mode);
if (S_ISREG(mode))
if (rc)
cFYI(1, ("SetPathInfo (perms) returned %d", rc));
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto setPermsRetry;
return rc;
}
}
}
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto QAllEAsRetry;
}
}
}
- if (pSMB)
- cifs_buf_release(pSMB);
+ cifs_buf_release(pSMB);
if (rc == -EAGAIN)
goto QEARetry;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff