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-rw-r--r--fs/cifs/cifssmb.c14
-rw-r--r--fs/cifs/connect.c23
-rw-r--r--fs/cifs/link.c87
-rw-r--r--fs/cifs/readdir.c37
4 files changed, 58 insertions, 103 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index df5276e628b..b968e5bd7df 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -2451,16 +2451,20 @@ querySymLinkRetry:
if (rc || (pSMBr->ByteCount < 2))
rc = -EIO;
else {
+ 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;
+
/* BB FIXME investigate remapping reserved chars here */
*symlinkinfo = cifs_strndup_from_ucs(data_start, count,
- pSMBr->hdr.Flags2 &
- SMBFLG2_UNICODE,
- nls_codepage);
+ is_unicode, nls_codepage);
if (!symlinkinfo)
rc = -ENOMEM;
}
@@ -3930,7 +3934,7 @@ parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr,
cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n",
*num_of_nodes,
- le16_to_cpu(pSMBr->DFSFlags)));
+ le32_to_cpu(pSMBr->DFSFlags)));
*target_nodes = kzalloc(sizeof(struct dfs_info3_param) *
*num_of_nodes, GFP_KERNEL);
@@ -3946,7 +3950,7 @@ parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr,
int max_len;
struct dfs_info3_param *node = (*target_nodes)+i;
- node->flags = le16_to_cpu(pSMBr->DFSFlags);
+ node->flags = le32_to_cpu(pSMBr->DFSFlags);
if (is_unicode) {
__le16 *tmp = kmalloc(strlen(searchName)*2 + 2,
GFP_KERNEL);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 5bce2778163..9dcdb0c707e 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2681,8 +2681,6 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
/* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128;
if (sign_CIFS_PDUs)
negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN;
-/* if (ntlmv2_support)
- negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;*/
/* setup pointers to domain name and workstation name */
bcc_ptr += SecurityBlobLength;
@@ -2780,9 +2778,10 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
memcpy(ses->server->cryptKey,
SecurityBlob2->Challenge,
CIFS_CRYPTO_KEY_SIZE);
- if (SecurityBlob2->NegotiateFlags &
+/* NTLMV2 flag is not for NTLMv2 password hash */
+/* if (SecurityBlob2->NegotiateFlags &
cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2))
- *pNTLMv2_flag = true;
+ *pNTLMv2_flag = true; */ /* BB wrong */
if ((SecurityBlob2->NegotiateFlags &
cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN))
@@ -3012,11 +3011,10 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
bcc_ptr += SecurityBlobLength;
negotiate_flags = NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET |
NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO |
- 0x80000000 | NTLMSSP_NEGOTIATE_128;
+ NTLMSSP_NEGOTIATE_56 | NTLMSSP_NEGOTIATE_128 |
+ NTLMSSP_NEGOTIATE_EXTENDED_SEC;
if (sign_CIFS_PDUs)
negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN;
- if (ntlmv2_flag)
- negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;
/* setup pointers to domain name and workstation name */
@@ -3438,12 +3436,19 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
/* above now done in SendReceive */
if ((rc == 0) && (tcon != NULL)) {
+ bool is_unicode;
+
tcon->tidStatus = CifsGood;
tcon->need_reconnect = false;
tcon->tid = smb_buffer_response->Tid;
bcc_ptr = pByteArea(smb_buffer_response);
bytes_left = BCC(smb_buffer_response);
length = strnlen(bcc_ptr, bytes_left - 2);
+ if (smb_buffer->Flags2 & SMBFLG2_UNICODE)
+ is_unicode = true;
+ else
+ is_unicode = false;
+
/* skip service field (NB: this field is always ASCII) */
if (length == 3) {
@@ -3464,9 +3469,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
/* mostly informational -- no need to fail on error here */
tcon->nativeFileSystem = cifs_strndup_from_ucs(bcc_ptr,
- bytes_left,
- smb_buffer->Flags2 &
- SMBFLG2_UNICODE,
+ bytes_left, is_unicode,
nls_codepage);
cFYI(1, ("nativeFileSystem=%s", tcon->nativeFileSystem));
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index eb2fbbe865d..ea9d11e3dcb 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -212,93 +212,6 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname)
return rc;
}
-int
-cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
-{
- struct inode *inode = direntry->d_inode;
- int rc = -EACCES;
- int xid;
- int oplock = 0;
- struct cifs_sb_info *cifs_sb;
- struct cifsTconInfo *pTcon;
- char *full_path = NULL;
- char *tmpbuffer;
- int len;
- __u16 fid;
-
- xid = GetXid();
- cifs_sb = CIFS_SB(inode->i_sb);
- pTcon = cifs_sb->tcon;
-
-/* BB would it be safe against deadlock to grab this sem
- even though rename itself grabs the sem and calls lookup? */
-/* mutex_lock(&inode->i_sb->s_vfs_rename_mutex);*/
- full_path = build_path_from_dentry(direntry);
-/* mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);*/
-
- if (full_path == NULL) {
- FreeXid(xid);
- return -ENOMEM;
- }
-
- cFYI(1,
- ("Full path: %s inode = 0x%p pBuffer = 0x%p buflen = %d",
- full_path, inode, pBuffer, buflen));
- if (buflen > PATH_MAX)
- len = PATH_MAX;
- else
- len = buflen;
- tmpbuffer = kmalloc(len, GFP_KERNEL);
- if (tmpbuffer == NULL) {
- kfree(full_path);
- FreeXid(xid);
- return -ENOMEM;
- }
-
-/* BB add read reparse point symlink code and
- Unix extensions symlink code here BB */
-
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
- cERROR(1, ("SFU style symlinks not implemented yet"));
- /* add open and read as in fs/cifs/inode.c */
- } else {
- rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, GENERIC_READ,
- OPEN_REPARSE_POINT, &fid, &oplock, NULL,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (!rc) {
- rc = CIFSSMBQueryReparseLinkInfo(xid, pTcon, full_path,
- tmpbuffer,
- len - 1,
- fid,
- cifs_sb->local_nls);
- if (CIFSSMBClose(xid, pTcon, fid)) {
- cFYI(1, ("Error closing junction point "
- "(open for ioctl)"));
- }
- /* If it is a DFS junction earlier we would have gotten
- PATH_NOT_COVERED returned from server so we do
- not need to request the DFS info here */
- }
- }
- /* BB Anything else to do to handle recursive links? */
- /* BB Should we be using page ops here? */
-
- /* BB null terminate returned string in pBuffer? BB */
- if (rc == 0) {
- rc = vfs_readlink(direntry, pBuffer, len, tmpbuffer);
- cFYI(1,
- ("vfs_readlink called from cifs_readlink returned %d",
- rc));
- }
-
- kfree(tmpbuffer);
- kfree(full_path);
- FreeXid(xid);
- return rc;
-}
-
void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie)
{
char *p = nd_get_link(nd);
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 5bc9ab7586b..df003fe3710 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -445,6 +445,38 @@ static void unix_fill_in_inode(struct inode *tmp_inode,
}
}
+/* BB eventually need to add the following helper function to
+ resolve NT_STATUS_STOPPED_ON_SYMLINK return code when
+ we try to do FindFirst on (NTFS) directory symlinks */
+/*
+int get_symlink_reparse_path(char *full_path, struct cifs_sb_info *cifs_sb,
+ int xid)
+{
+ __u16 fid;
+ int len;
+ int oplock = 0;
+ int rc;
+ struct cifsTconInfo *ptcon = cifs_sb->tcon;
+ char *tmpbuffer;
+
+ rc = CIFSSMBOpen(xid, ptcon, full_path, FILE_OPEN, GENERIC_READ,
+ OPEN_REPARSE_POINT, &fid, &oplock, NULL,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (!rc) {
+ tmpbuffer = kmalloc(maxpath);
+ rc = CIFSSMBQueryReparseLinkInfo(xid, ptcon, full_path,
+ tmpbuffer,
+ maxpath -1,
+ fid,
+ cifs_sb->local_nls);
+ if (CIFSSMBClose(xid, ptcon, fid)) {
+ cFYI(1, ("Error closing temporary reparsepoint open)"));
+ }
+ }
+}
+ */
+
static int initiate_cifs_search(const int xid, struct file *file)
{
int rc = 0;
@@ -500,7 +532,10 @@ ffirst_retry:
CIFS_MOUNT_MAP_SPECIAL_CHR, CIFS_DIR_SEP(cifs_sb));
if (rc == 0)
cifsFile->invalidHandle = false;
- if ((rc == -EOPNOTSUPP) &&
+ /* BB add following call to handle readdir on new NTFS symlink errors
+ else if STATUS_STOPPED_ON_SYMLINK
+ call get_symlink_reparse_path and retry with new path */
+ else if ((rc == -EOPNOTSUPP) &&
(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SERVER_INUM;
goto ffirst_retry;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 10:07:48 +0000