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17 smb3 client fixes
-----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmo9mPQACgkQiiy9cAdy T1HWIQv+IV73XayJX9VoeEqulKAksrH4oW2/IjPw93JqlwGSXkzTwdkl8lE+wkKf vxmjRNpJmqMLoyPxLq07/MvuiDowqnlz/Vb5qOrsDLjjpSCegECKyejnmAOU+yVU W1+6RKOpMgWqcADzJcvKpWQJsMwpVXOquLragsWQL3bOG6RSqYAnFYhufmsGFJly +Xsbm7CazFd+T3LSG3A74mN+ip18uTnmOijLwMZ1wdIkwOV/eFkCtyAbwQzxM424 dF7dScw+jV6jtKFiHe4QPSfQRBwEUNdSMUlvOGlzLDm7JmzXLeqM4rY6p3zK7syD lXJ0ZCBRo9Jy2ibJleFuJCoTyeb+whlx2A+T78o8t/Grw0gMPsFyk5m7DOCeFEIM PdtG4VYgf6byB5vRYMXwJt+FVp4cj/pLF9+Hoi3E5lUHe2ZFnFf7BdRVW9Xk+Nzj z8xknYMl8GlNpIQFEPTRQ355zTNSceco+tWydjOCiav4gkKwNrj4L8/SVF61IsQ6 GxrnaiI6 =vIzG -----END PGP SIGNATURE----- Merge tag 'v7.2-rc-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 Pull smb client fixes from Steve French: - fix potential double frees - fix potential memory leak in receiving compound response - querydir improvement - fix chown with smb311 posix extensions - ACL setting fixes - minor debug improvement and cleanup - add some missing protocol defines - sparse file fixes * tag 'v7.2-rc-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: define variable sized buffer for querydir responses smb/client: do not account EOF extension as allocation smb/client: preserve errors from smb2_set_sparse() smb: client: Fix next buffer leak in receive_encrypted_standard() smb/client: use %pe to print error pointer smb/client: name the default fallocate mode smb common: add missing AAPL defines smb/client: fix chown/chgrp with SMB3 POSIX Extensions smb/client: fix security flag calculation when setting security descriptors smb: client: refactor ACL setting control flow in id_mode_to_cifs_acl() smb: client: fix query directory replay double-free smb: client: fix change notify replay double-free smb: client: fix query_info() replay double-free smb: client: fix double-free in SMB2_close() replay smb: client: fix double-free in SMB2_ioctl() replay smb: client: fix double-free in SMB2_open() replay smb: client: fix double-free in SMB2_flush() replay
This commit is contained in:
Linus Torvalds
commit
ad054be811
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@ -1185,7 +1185,8 @@ static void populate_new_aces(char *nacl_base,
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static __u16 replace_sids_and_copy_aces(struct smb_acl *pdacl, struct smb_acl *pndacl,
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struct smb_sid *pownersid, struct smb_sid *pgrpsid,
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struct smb_sid *pnownersid, struct smb_sid *pngrpsid)
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struct smb_sid *pnownersid, struct smb_sid *pngrpsid,
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int *aclflag)
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{
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int i;
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u16 size = 0;
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@ -1209,12 +1210,15 @@ static __u16 replace_sids_and_copy_aces(struct smb_acl *pdacl, struct smb_acl *p
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pntace = (struct smb_ace *) (acl_base + size);
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pnntace = (struct smb_ace *) (nacl_base + nsize);
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if (pnownersid && compare_sids(&pntace->sid, pownersid) == 0)
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if (pnownersid && compare_sids(&pntace->sid, pownersid) == 0) {
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ace_size = cifs_copy_ace(pnntace, pntace, pnownersid);
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else if (pngrpsid && compare_sids(&pntace->sid, pgrpsid) == 0)
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*aclflag |= CIFS_ACL_DACL;
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} else if (pngrpsid && compare_sids(&pntace->sid, pgrpsid) == 0) {
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ace_size = cifs_copy_ace(pnntace, pntace, pngrpsid);
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else
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*aclflag |= CIFS_ACL_DACL;
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} else {
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ace_size = cifs_copy_ace(pnntace, pntace, NULL);
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}
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size += le16_to_cpu(pntace->size);
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nsize += ace_size;
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@ -1521,7 +1525,8 @@ static int build_sec_desc(struct smb_ntsd *pntsd, struct smb_ntsd *pnntsd,
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/* Replace ACEs for old owner with new one */
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size = replace_sids_and_copy_aces(dacl_ptr, ndacl_ptr,
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owner_sid_ptr, group_sid_ptr,
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nowner_sid_ptr, ngroup_sid_ptr);
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nowner_sid_ptr, ngroup_sid_ptr,
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aclflag);
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ndacl_ptr->size = cpu_to_le16(size);
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}
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@ -1738,7 +1743,7 @@ id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,
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kuid_t uid, kgid_t gid)
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{
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int rc = 0;
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int aclflag = CIFS_ACL_DACL; /* default flag to set */
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int aclflag = 0;
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__u32 secdesclen = 0;
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__u32 nsecdesclen = 0;
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__u32 dacloffset = 0;
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@ -1834,14 +1839,23 @@ id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,
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cifs_dbg(NOISY, "build_sec_desc rc: %d\n", rc);
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if (ops->set_acl == NULL)
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rc = -EOPNOTSUPP;
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if (rc != 0)
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goto id_mode_to_cifs_acl_exit;
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if (!rc) {
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/* Set the security descriptor */
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rc = ops->set_acl(pnntsd, nsecdesclen, inode, path, aclflag);
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cifs_dbg(NOISY, "set_cifs_acl rc: %d\n", rc);
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if (aclflag == 0) {
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cifs_dbg(FYI, "set_cifs_acl aclflag=0, no change mapped\n");
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goto id_mode_to_cifs_acl_exit;
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}
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if (ops->set_acl == NULL) {
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rc = -EOPNOTSUPP;
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goto id_mode_to_cifs_acl_exit;
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}
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/* Set the security descriptor */
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rc = ops->set_acl(pnntsd, nsecdesclen, inode, path, aclflag);
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cifs_dbg(NOISY, "set_cifs_acl rc: %d\n", rc);
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id_mode_to_cifs_acl_exit:
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cifs_put_tlink(tlink);
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@ -1393,6 +1393,7 @@ struct cifs_search_info {
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bool emptyDir:1;
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bool unicode:1;
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bool smallBuf:1; /* so we know which buf_release function to call */
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bool is_dynamic_buf:1; /* dynamically allocated buffer - can be variable size */
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};
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#define ACL_NO_MODE ((umode_t)(-1))
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@ -1906,6 +1907,7 @@ enum cifs_find_flags {
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#define CIFS_NO_BUFFER 0 /* Response buffer not returned */
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#define CIFS_SMALL_BUFFER 1
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#define CIFS_LARGE_BUFFER 2
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#define CIFS_DYNAMIC_BUFFER 3 /* Dynamically allocated buffer */
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#define CIFS_IOVEC 4 /* array of response buffers */
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/* Type of Request to SendReceive2 */
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@ -457,8 +457,8 @@ static int __reconnect_target_locked(struct TCP_Server_Info *server,
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server->hostname = hostname;
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spin_unlock(&server->srv_lock);
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} else {
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cifs_dbg(FYI, "%s: couldn't extract hostname or address from dfs target: %ld\n",
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__func__, PTR_ERR(hostname));
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cifs_dbg(FYI, "%s: couldn't extract hostname or address from dfs target: %pe\n",
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__func__, hostname);
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cifs_dbg(FYI, "%s: default to last target server: %s\n", __func__,
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server->hostname);
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}
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@ -1563,6 +1563,8 @@ int cifs_closedir(struct inode *inode, struct file *file)
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cfile->srch_inf.ntwrk_buf_start = NULL;
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if (cfile->srch_inf.smallBuf)
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cifs_small_buf_release(buf);
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else if (cfile->srch_inf.is_dynamic_buf)
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kfree(buf);
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else
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cifs_buf_release(buf);
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}
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@ -3038,13 +3038,20 @@ int cifs_fiemap(struct inode *inode, struct fiemap_extent_info *fei, u64 start,
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void cifs_setsize(struct inode *inode, loff_t offset)
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{
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loff_t old_size;
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u64 blocks = CIFS_INO_BLOCKS(offset);
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spin_lock(&inode->i_lock);
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old_size = i_size_read(inode);
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i_size_write(inode, offset);
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/*
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* Until we can query the server for actual allocation size,
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* this is best estimate we have for blocks allocated for a file.
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* Extending EOF does not allocate the intervening range. Only clamp
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* i_blocks on shrink; allocation growth comes from writes or from the
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* server-reported AllocationSize.
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*/
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inode->i_blocks = CIFS_INO_BLOCKS(offset);
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if (offset < old_size && (u64)inode->i_blocks > blocks)
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inode->i_blocks = blocks;
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spin_unlock(&inode->i_lock);
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inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
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truncate_pagecache(inode, offset);
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@ -3376,7 +3383,8 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
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if (attrs->ia_valid & ATTR_GID)
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gid = attrs->ia_gid;
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if (sbflags & (CIFS_MOUNT_CIFS_ACL | CIFS_MOUNT_MODE_FROM_SID)) {
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if ((sbflags & (CIFS_MOUNT_CIFS_ACL | CIFS_MOUNT_MODE_FROM_SID)) ||
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cifs_sb_master_tcon(cifs_sb)->posix_extensions) {
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if (uid_valid(uid) || gid_valid(gid)) {
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mode = NO_CHANGE_64;
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rc = id_mode_to_cifs_acl(inode, full_path, &mode,
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@ -732,6 +732,8 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon, loff_t pos,
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if (cfile->srch_inf.smallBuf)
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cifs_small_buf_release(cfile->srch_inf.
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ntwrk_buf_start);
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else if (cfile->srch_inf.is_dynamic_buf)
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kfree(cfile->srch_inf.ntwrk_buf_start);
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else
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cifs_buf_release(cfile->srch_inf.
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ntwrk_buf_start);
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@ -2117,8 +2117,9 @@ smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid,
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}
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/* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */
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static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon,
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struct cifsFileInfo *cfile, struct inode *inode, __u8 setsparse)
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static int smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon,
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struct cifsFileInfo *cfile, struct inode *inode,
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__u8 setsparse)
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{
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struct cifsInodeInfo *cifsi;
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int rc;
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@ -2127,31 +2128,31 @@ static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon,
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/* if file already sparse don't bother setting sparse again */
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if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && setsparse)
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return true; /* already sparse */
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return 0; /* already sparse */
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if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && !setsparse)
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return true; /* already not sparse */
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return 0; /* already not sparse */
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/*
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* Can't check for sparse support on share the usual way via the
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* FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share
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* since Samba server doesn't set the flag on the share, yet
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* supports the set sparse FSCTL and returns sparse correctly
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* in the file attributes. If we fail setting sparse though we
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* mark that server does not support sparse files for this share
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* to avoid repeatedly sending the unsupported fsctl to server
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* if the file is repeatedly extended.
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* in the file attributes. If the server returns EOPNOTSUPP, mark
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* that sparse files are not supported on this share to avoid
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* repeatedly sending the unsupported FSCTL.
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*/
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if (tcon->broken_sparse_sup)
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return false;
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return -EOPNOTSUPP;
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rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
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cfile->fid.volatile_fid, FSCTL_SET_SPARSE,
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&setsparse, 1, CIFSMaxBufSize, NULL, NULL);
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if (rc) {
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tcon->broken_sparse_sup = true;
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if (rc == -EOPNOTSUPP)
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tcon->broken_sparse_sup = true;
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cifs_dbg(FYI, "set sparse rc = %d\n", rc);
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return false;
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return rc;
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}
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if (setsparse)
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@ -2159,7 +2160,7 @@ static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon,
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else
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cifsi->cifsAttrs &= (~FILE_ATTRIBUTE_SPARSE_FILE);
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return true;
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return 0;
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}
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static int
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@ -3483,10 +3484,9 @@ static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon,
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/* Need to make file sparse, if not already, before freeing range. */
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/* Consider adding equivalent for compressed since it could also work */
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if (!smb2_set_sparse(xid, tcon, cfile, inode, set_sparse)) {
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rc = -EOPNOTSUPP;
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rc = smb2_set_sparse(xid, tcon, cfile, inode, set_sparse);
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if (rc)
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goto out;
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}
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filemap_invalidate_lock(inode->i_mapping);
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/*
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@ -4071,7 +4071,7 @@ static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode,
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return smb3_collapse_range(file, tcon, off, len);
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else if (mode == FALLOC_FL_INSERT_RANGE)
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return smb3_insert_range(file, tcon, off, len);
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else if (mode == 0)
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else if (mode == FALLOC_FL_ALLOCATE_RANGE)
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return smb3_simple_falloc(file, tcon, off, len, false);
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return -EOPNOTSUPP;
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@ -5111,6 +5111,12 @@ receive_encrypted_standard(struct TCP_Server_Info *server,
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one_more:
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shdr = (struct smb2_hdr *)buf;
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next_cmd = le32_to_cpu(shdr->NextCommand);
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if (*num_mids >= MAX_COMPOUND) {
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cifs_server_dbg(VFS, "too many PDUs in compound\n");
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return -1;
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}
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if (next_cmd) {
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if (WARN_ON_ONCE(next_cmd > pdu_length))
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return -1;
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@ -5134,10 +5140,6 @@ receive_encrypted_standard(struct TCP_Server_Info *server,
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mid_entry->resp_buf_size = server->pdu_size;
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}
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if (*num_mids >= MAX_COMPOUND) {
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cifs_server_dbg(VFS, "too many PDUs in compound\n");
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return -1;
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}
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bufs[*num_mids] = buf;
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mids[(*num_mids)++] = mid_entry;
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@ -3305,6 +3305,8 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
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replay_again:
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/* reinitialize for possible replay */
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resp_buftype = CIFS_NO_BUFFER;
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memset(&rsp_iov, 0, sizeof(rsp_iov));
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flags = 0;
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server = cifs_pick_channel(ses);
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oparms->replay = !!(retries);
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@ -3530,6 +3532,8 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
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replay_again:
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/* reinitialize for possible replay */
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resp_buftype = CIFS_NO_BUFFER;
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memset(&rsp_iov, 0, sizeof(rsp_iov));
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flags = 0;
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server = cifs_pick_channel(ses);
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@ -3724,6 +3728,8 @@ __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
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replay_again:
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/* reinitialize for possible replay */
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resp_buftype = CIFS_NO_BUFFER;
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memset(&rsp_iov, 0, sizeof(rsp_iov));
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flags = 0;
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query_attrs = false;
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server = cifs_pick_channel(ses);
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@ -3936,6 +3942,8 @@ query_info(const unsigned int xid, struct cifs_tcon *tcon,
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replay_again:
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/* reinitialize for possible replay */
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resp_buftype = CIFS_NO_BUFFER;
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memset(&rsp_iov, 0, sizeof(rsp_iov));
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flags = 0;
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allocated = false;
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server = cifs_pick_channel(ses);
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|
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@ -4108,6 +4116,8 @@ SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon,
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replay_again:
|
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/* reinitialize for possible replay */
|
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resp_buftype = CIFS_NO_BUFFER;
|
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memset(&rsp_iov, 0, sizeof(rsp_iov));
|
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flags = 0;
|
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server = cifs_pick_channel(ses);
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|
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|
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@ -4450,6 +4460,8 @@ SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
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replay_again:
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/* reinitialize for possible replay */
|
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resp_buftype = CIFS_NO_BUFFER;
|
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memset(&rsp_iov, 0, sizeof(rsp_iov));
|
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flags = 0;
|
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server = cifs_pick_channel(ses);
|
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|
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|
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@ -5661,6 +5673,8 @@ smb2_parse_query_directory(struct cifs_tcon *tcon,
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if (srch_inf->ntwrk_buf_start) {
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if (srch_inf->smallBuf)
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cifs_small_buf_release(srch_inf->ntwrk_buf_start);
|
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else if (srch_inf->is_dynamic_buf)
|
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kfree(srch_inf->ntwrk_buf_start);
|
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else
|
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cifs_buf_release(srch_inf->ntwrk_buf_start);
|
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}
|
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|
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@ -5680,12 +5694,18 @@ smb2_parse_query_directory(struct cifs_tcon *tcon,
|
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cifs_dbg(FYI, "num entries %d last_index %lld srch start %p srch end %p\n",
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srch_inf->entries_in_buffer, srch_inf->index_of_last_entry,
|
||||
srch_inf->srch_entries_start, srch_inf->last_entry);
|
||||
if (resp_buftype == CIFS_LARGE_BUFFER)
|
||||
if (resp_buftype == CIFS_LARGE_BUFFER) {
|
||||
srch_inf->smallBuf = false;
|
||||
else if (resp_buftype == CIFS_SMALL_BUFFER)
|
||||
srch_inf->is_dynamic_buf = false;
|
||||
} else if (resp_buftype == CIFS_SMALL_BUFFER) {
|
||||
srch_inf->smallBuf = true;
|
||||
else
|
||||
srch_inf->is_dynamic_buf = false;
|
||||
} else if (resp_buftype == CIFS_DYNAMIC_BUFFER) {
|
||||
srch_inf->smallBuf = false;
|
||||
srch_inf->is_dynamic_buf = true;
|
||||
} else {
|
||||
cifs_tcon_dbg(VFS, "Invalid search buffer type\n");
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -5708,6 +5728,8 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
|
|||
|
||||
replay_again:
|
||||
/* reinitialize for possible replay */
|
||||
resp_buftype = CIFS_NO_BUFFER;
|
||||
memset(&rsp_iov, 0, sizeof(rsp_iov));
|
||||
flags = 0;
|
||||
server = cifs_pick_channel(ses);
|
||||
|
||||
|
|
|
|||
|
|
@ -1243,6 +1243,30 @@ struct create_mxac_req {
|
|||
__le64 Timestamp;
|
||||
} __packed;
|
||||
|
||||
/*
|
||||
* AAPL flags. See Samba libcli/smb/smb2_create_ctx.h
|
||||
*/
|
||||
|
||||
/* "AAPL" Context Command Codes */
|
||||
#define SMB2_CRTCTX_AAPL_SERVER_QUERY 1
|
||||
#define SMB2_CRTCTX_AAPL_RESOLVE_ID 2
|
||||
|
||||
/* "AAPL" Server Query request/response bitmap */
|
||||
#define SMB2_CRTCTX_AAPL_SERVER_CAPS 1
|
||||
#define SMB2_CRTCTX_AAPL_VOLUME_CAPS 2
|
||||
#define SMB2_CRTCTX_AAPL_MODEL_INFO 4
|
||||
|
||||
/* "AAPL" Client/Server Capabilities bitmap */
|
||||
#define SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR 1
|
||||
#define SMB2_CRTCTX_AAPL_SUPPORTS_OSX_COPYFILE 2
|
||||
#define SMB2_CRTCTX_AAPL_UNIX_BASED 4
|
||||
#define SMB2_CRTCTX_AAPL_SUPPORTS_NFS_ACE 8
|
||||
|
||||
/* "AAPL" Volume Capabilities bitmap */
|
||||
#define SMB2_CRTCTX_AAPL_SUPPORT_RESOLVE_ID 1
|
||||
#define SMB2_CRTCTX_AAPL_CASE_SENSITIVE 2
|
||||
#define SMB2_CRTCTX_AAPL_FULL_SYNC 4
|
||||
|
||||
/*
|
||||
* Flags
|
||||
* See MS-SMB2 2.2.13.2.11
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user