Skip to content

L
linux
Commit a9bbd05d authored by Steve French's avatar Steve French
Browse files
Options

Merge bk://linux.bkbits.net/linux-2.5 

into hostme.bitkeeper.com:/repos/c/cifs/linux-2.5cifs
parents 740ba8b9 3ff276de
Show whitespace changes
Inline Side-by-side
Showing with 346 additions and 194 deletions
fs/cifs/AUTHORS
View file @ a9bbd05d
......@@ -20,6 +20,7 @@ Patch Contributors
Zwane Mwaikambo
Andi Kleen
Amrut Joshi
Shobhit Dayal
Test case and Bug Report contributors
-------------------------------------
......
fs/cifs/CHANGES
View file @ a9bbd05d
Version 0.94
------------
Fix to list processing in reopen_files. Fix reconnection when server hung
but tcpip session still alive. Set proper timeout on socket read.
Version 0.93
------------
Add missing mount options including iocharset. SMP fixes in write and open.
Fix errors in reconnecting after TCP session failure. Fix module unloading
of default nls codepage
Version 0.92
------------
Active smb transactions should never go negative (fix double FreeXid). Fix
list processing in file routines. Check return code on kmalloc in open.
Fix spinlock usage for SMP.
Version 0.91
------------
Fix oops in reopen_files when invalid dentry. drop dentry on server rename
......
fs/cifs/README
View file @ a9bbd05d
......@@ -127,6 +127,13 @@ A partial list of the supported mount options follows:
this overrides the default mode for directory inodes.
port attempt to contact the server on this tcp port, before
trying the usual ports (port 445, then 139).
iocharset Codepage used to convert local path names to and from
Unicode. Unicode is used by default for network path
names if the server supports it. If iocharset is
not specified then the nls_default specified
during the local client kernel build will be used.
If server does not support Unicode, this parameter is
unused.
rsize default read size
wsize default write size
rw mount the network share read-write (note that the
......
fs/cifs/cifs_debug.c
View file @ a9bbd05d
/*
* fs/cifs_debug.c
*
* Copyright (c) International Business Machines Corp., 2000,2002
* Copyright (C) International Business Machines Corp., 2000,2003
*
* Modified by Steve French (sfrench@us.ibm.com)
*
......@@ -84,12 +84,12 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
length =
sprintf(buf,
"\n%d) Name: %s Domain: %s Mounts: %d ServerOS: %s ServerNOS: %s\n\tCapabilities: 0x%x",
"\n%d) Name: %s Domain: %s Mounts: %d ServerOS: %s \n\tServerNOS: %s\tCapabilities: 0x%x\n\tSMB session status: %d\tTCP session status: %d",
i, ses->serverName, ses->serverDomain, atomic_read(&ses->inUse),
ses->serverOS, ses->serverNOS, ses->capabilities);
ses->serverOS, ses->serverNOS, ses->capabilities,ses->status,ses->server->tcpStatus);
buf += length;
if(ses->server)
buf += sprintf(buf, "\tLocal Users To Same Server: %d SecMode: 0x%x",
buf += sprintf(buf, "\n\tLocal Users To Same Server: %d SecMode: 0x%x",
atomic_read(&ses->server->socketUseCount),ses->server->secMode);
}
read_unlock(&GlobalSMBSeslock);
......@@ -106,13 +106,13 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
length =
sprintf(buf,
"\n%d) %s Uses: %d on FS: %s with characteristics: 0x%x Attributes: 0x%x\n\tPathComponentMax: %d",
"\n%d) %s Uses: %d on FS: %s with characteristics: 0x%x Attributes: 0x%x\n\tPathComponentMax: %d Status: %d",
i, tcon->treeName,
atomic_read(&tcon->useCount),
tcon->nativeFileSystem,
tcon->fsDevInfo.DeviceCharacteristics,
tcon->fsAttrInfo.Attributes,
tcon->fsAttrInfo.MaxPathNameComponentLength);
tcon->fsAttrInfo.MaxPathNameComponentLength,tcon->tidStatus);
buf += length;
if (tcon->fsDevInfo.DeviceType == FILE_DEVICE_DISK)
length = sprintf(buf, " type: DISK ");
......@@ -123,6 +123,8 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
sprintf(buf, " type: %d ",
tcon->fsDevInfo.DeviceType);
buf += length;
if(tcon->tidStatus == CifsNeedReconnect)
buf += sprintf(buf, "\tDISCONNECTED ");
}
read_unlock(&GlobalSMBSeslock);
length = sprintf(buf, "\n");
......
fs/cifs/cifsencrypt.c
View file @ a9bbd05d
/*
* fs/cifs/cifsencrypt.c
*
* Copyright (c) International Business Machines Corp., 2003
* Copyright (C) International Business Machines Corp., 2003
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
......@@ -64,13 +64,13 @@ int cifs_sign_smb(struct smb_hdr * cifs_pdu, struct cifsSesInfo * ses,
if((le32_to_cpu(cifs_pdu->Flags2) & SMBFLG2_SECURITY_SIGNATURE) == 0)
return rc;
write_lock(&GlobalMid_Lock);
spin_lock(&GlobalMid_Lock);
cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(ses->sequence_number);
cifs_pdu->Signature.Sequence.Reserved = 0;
*pexpected_response_sequence_number = ses->sequence_number++;
ses->sequence_number++;
write_unlock(&GlobalMid_Lock);
spin_unlock(&GlobalMid_Lock);
rc = cifs_calculate_signature(cifs_pdu, ses->mac_signing_key,smb_signature);
if(rc)
......
fs/cifs/cifsfs.c
View file @ a9bbd05d
/*
* fs/cifs/cifsfs.c
*
* Copyright (c) International Business Machines Corp., 2002
* Copyright (C) International Business Machines Corp., 2002,2003
* Author(s): Steve French (sfrench@us.ibm.com)
*
* Common Internet FileSystem (CIFS) client
......@@ -81,7 +81,6 @@ cifs_read_super(struct super_block *sb, void *data,
cifs_sb = CIFS_SB(sb);
if(cifs_sb == NULL)
return -ENOMEM;
cifs_sb->local_nls = load_nls_default(); /* needed for ASCII cp to Unicode converts */
rc = cifs_mount(sb, cifs_sb, data, devname);
......@@ -571,8 +570,6 @@ cifs_destroy_mids(void)
static int cifs_oplock_thread(void * dummyarg)
{
struct list_head * tmp;
struct list_head * tmp1;
struct oplock_q_entry * oplock_item;
struct cifsTconInfo *pTcon;
struct inode * inode;
......@@ -585,18 +582,21 @@ static int cifs_oplock_thread(void * dummyarg)
oplockThread = current;
do {
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(100*HZ);
/* BB add missing code */
write_lock(&GlobalMid_Lock);
list_for_each_safe(tmp, tmp1, &GlobalOplock_Q) {
oplock_item = list_entry(tmp, struct oplock_q_entry,
qhead);
schedule_timeout(39*HZ);
spin_lock(&GlobalMid_Lock);
if(list_empty(&GlobalOplock_Q)) {
spin_unlock(&GlobalMid_Lock);
schedule_timeout(39*HZ);
} else {
oplock_item = list_entry(GlobalOplock_Q.next,
struct oplock_q_entry, qhead);
if(oplock_item) {
pTcon = oplock_item->tcon;
inode = oplock_item->pinode;
netfid = oplock_item->netfid;
spin_unlock(&GlobalMid_Lock);
DeleteOplockQEntry(oplock_item);
write_unlock(&GlobalMid_Lock);
if (S_ISREG(inode->i_mode))
rc = filemap_fdatawrite(inode->i_mapping);
else
......@@ -609,11 +609,9 @@ static int cifs_oplock_thread(void * dummyarg)
0, LOCKING_ANDX_OPLOCK_RELEASE,
0 /* wait flag */);
cFYI(1,("Oplock release rc = %d ",rc));
write_lock(&GlobalMid_Lock);
} else
break;
spin_unlock(&GlobalMid_Lock);
}
write_unlock(&GlobalMid_Lock);
} while(!signal_pending(current));
complete_and_exit (&cifs_oplock_exited, 0);
}
......@@ -640,7 +638,7 @@ init_cifs(void)
GlobalTotalActiveXid = 0;
GlobalMaxActiveXid = 0;
GlobalSMBSeslock = RW_LOCK_UNLOCKED;
GlobalMid_Lock = RW_LOCK_UNLOCKED;
GlobalMid_Lock = SPIN_LOCK_UNLOCKED;
rc = cifs_init_inodecache();
if (!rc) {
......
fs/cifs/cifsglob.h
View file @ a9bbd05d
/*
* fs/cifs/cifsglob.h
*
* Copyright (c) International Business Machines Corp., 2002
* Copyright (C) International Business Machines Corp., 2002,2003
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
......@@ -212,6 +212,7 @@ struct cifsFileInfo {
int endOfSearch:1; /* we have reached end of search */
int closePend:1; /* file is marked to close */
int emptyDir:1;
int invalidHandle:1; /* file closed via session abend */
char * search_resume_name;
unsigned int resume_name_length;
__u32 resume_key;
......@@ -294,7 +295,27 @@ struct servers_not_supported { /* @z4a */
* following to be declared.
*/
/* BB Every global should have an associated mutex for safe update BB */
/****************************************************************************
* Locking notes. All updates to global variables and lists should be
* protected by spinlocks or semaphores.
*
* Spinlocks
* ---------
* GlobalMid_Lock protects:
* list operations on pending_mid_q and oplockQ
* updates to XID counters, multiplex id and SMB sequence numbers
* GlobalSMBSesLock protects:
* list operations on tcp and SMB session lists and tCon lists
* f_owner.lock protects certain per file struct operations
* mapping->page_lock protects certain per page operations
*
* Semaphores
* ----------
* sesSem operations on smb session
* tconSem operations on tree connection
* i_sem inode operations
*
****************************************************************************/
#ifdef DECLARE_GLOBALS_HERE
#define GLOBAL_EXTERN
......@@ -327,7 +348,7 @@ GLOBAL_EXTERN struct list_head GlobalOplock_Q;
GLOBAL_EXTERN unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */
GLOBAL_EXTERN unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */
GLOBAL_EXTERN unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */
GLOBAL_EXTERN rwlock_t GlobalMid_Lock; /* protects above and list operations */
GLOBAL_EXTERN spinlock_t GlobalMid_Lock; /* protects above and list operations */
/* on midQ entries */
GLOBAL_EXTERN char Local_System_Name[15];
......
fs/cifs/cifssmb.c
View file @ a9bbd05d
......@@ -62,6 +62,7 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
if(!rc)
reopen_files(tcon,nls_codepage);
}
unload_nls(nls_codepage);
}
}
if(rc)
......@@ -821,7 +822,6 @@ int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon,
} else {
len_of_str = cifs_strtoUCS((wchar_t *) rename_info->target_name, target_name, 530, nls_codepage);
}
cFYI(1,("len of str: %d", len_of_str)); /* BB removeme BB */
rename_info->target_name_len = cpu_to_le32(2 * len_of_str);
pSMB->DataCount = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2;
pSMB->ByteCount += pSMB->DataCount;
......
fs/cifs/connect.c
View file @ a9bbd05d
/*
* fs/cifs/connect.c
*
* Copyright (c) International Business Machines Corp., 2002
* Copyright (C) International Business Machines Corp., 2002,2003
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
......@@ -52,6 +52,8 @@ struct smb_vol {
char *domainname;
char *UNC;
char *UNCip;
char *iocharset; /* local code page for mapping to and from Unicode */
char *source_rfc1001_name; /* netbios name of client */
uid_t linux_uid;
gid_t linux_gid;
mode_t file_mode;
......@@ -59,6 +61,7 @@ struct smb_vol {
int rw;
unsigned int rsize;
unsigned int wsize;
unsigned int sockopt;
unsigned short int port;
};
......@@ -82,6 +85,8 @@ cifs_reconnect(struct TCP_Server_Info *server)
struct cifsSesInfo *ses;
struct cifsTconInfo *tcon;
if(server->tcpStatus == CifsExiting)
return rc;
server->tcpStatus = CifsNeedReconnect;
server->maxBuf = 0;
......@@ -182,23 +187,26 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
sizeof (struct smb_hdr) -
1 /* RFC1001 header and SMB header */ ,
MSG_PEEK /* flags see socket.h */ );
if (length < 0) {
if (length == -ECONNRESET) {
cERROR(1, ("Connection reset by peer "));
if(server->tcpStatus == CifsExiting) {
break;
} else if (server->tcpStatus == CifsNeedReconnect) {
cFYI(1,("Reconnecting after server stopped responding"));
cifs_reconnect(server);
csocket = server->ssocket;
continue;
} else { /* find define for the -512 returned at unmount time */
cFYI(1,("Error on sock_recvmsg(peek) length = %d",
length));
}
break;
} else if (length == 0) {
cFYI(1,("Zero length peek received - dead session?"));
} else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) {
schedule_timeout(1); /* minimum sleep to prevent looping
allowing socket to clear and app threads to set
tcpStatus CifsNeedReconnect if server hung */
continue;
} else if (length <= 0) {
cFYI(1,("Reconnecting after unexpected rcvmsg error "));
cifs_reconnect(server);
csocket = server->ssocket;
continue;
}
pdu_length = 4 + ntohl(smb_buffer->smb_buf_length);
cFYI(1, ("Peek length rcvd: %d with smb length: %d", length, pdu_length));
......@@ -222,7 +230,9 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
cERROR(1,
("Unknown RFC 1001 frame received not 0x00 nor 0x85"));
cifs_dump_mem(" Received Data is: ", temp, length);
break;
cifs_reconnect(server);
csocket = server->ssocket;
continue;
} else {
if ((length != sizeof (struct smb_hdr) - 1)
|| (pdu_length >
......@@ -236,11 +246,12 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
("Invalid size or format for SMB found with length %d and pdu_lenght %d",
length, pdu_length));
cifs_dump_mem("Received Data is: ",temp,sizeof(struct smb_hdr));
/* BB fix by finding next smb signature - and reading off data until next smb ? BB */
/* BB add reconnect here */
break;
/* could we fix this network corruption by finding next
smb header (instead of killing the session) and
restart reading from next valid SMB found? */
cifs_reconnect(server);
csocket = server->ssocket;
continue;
} else { /* length ok */
length = 0;
......@@ -248,18 +259,15 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
iov.iov_len = pdu_length;
for (total_read = 0; total_read < pdu_length; total_read += length) {
/* Should improve check for buffer overflow with bad pdu_length */
/* iov.iov_base = smb_buffer+total_read;
iov.iov_len = pdu_length-total_read; */
length = sock_recvmsg(csocket, &smb_msg,
pdu_length - total_read, 0);
/* cERROR(1,("For iovlen %d Length received: %d with total read %d",
iov.iov_len, length,total_read)); */
if (length == 0) {
cERROR(1,
("Zero length receive when expecting %d ",
pdu_length - total_read));
/* BB add reconnect here */
break;
cifs_reconnect(server);
csocket = server->ssocket;
continue;
}
}
}
......@@ -272,7 +280,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
}
task_to_wake = NULL;
read_lock(&GlobalMid_Lock);
spin_lock(&GlobalMid_Lock);
list_for_each(tmp, &server->pending_mid_q) {
mid_entry = list_entry(tmp, struct
mid_q_entry,
......@@ -288,7 +296,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
MID_RESPONSE_RECEIVED;
}
}
read_unlock(&GlobalMid_Lock);
spin_unlock(&GlobalMid_Lock);
if (task_to_wake) {
smb_buffer = NULL; /* will be freed by users thread after he is done */
wake_up_process(task_to_wake);
......@@ -432,6 +440,20 @@ parse_mount_options(char *options, const char *devname, struct smb_vol *vol)
printk(KERN_WARNING "CIFS: domain name too long\n");
return 1;
}
} else if (strnicmp(data, "iocharset", 9) == 0) {
if (!value || !*value) {
printk(KERN_WARNING "CIFS: invalid iocharset specified\n");
return 1; /* needs_arg; */
}
if (strnlen(value, 65) < 65) {
if(strnicmp(value,"default",7))
vol->iocharset = value;
/* if iocharset not set load_nls_default used by caller */
cFYI(1, ("iocharset set to %s",value));
} else {
printk(KERN_WARNING "CIFS: iocharset name too long.\n");
return 1;
}
} else if (strnicmp(data, "uid", 3) == 0) {
if (value && *value) {
vol->linux_uid =
......@@ -467,6 +489,19 @@ parse_mount_options(char *options, const char *devname, struct smb_vol *vol)
vol->wsize =
simple_strtoul(value, &value, 0);
}
} else if (strnicmp(data, "sockopt", 5) == 0) {
if (value && *value) {
vol->sockopt =
simple_strtoul(value, &value, 0);
}
} else if (strnicmp(data, "netbiosname", 4) == 0) {
if (!value || !*value) {
vol->source_rfc1001_name = NULL;
} else if (strnlen(value, 17) < 17) {
vol->source_rfc1001_name = value;
} else {
printk(KERN_WARNING "CIFS: netbiosname too long (more than 15)\n");
}
} else if (strnicmp(data, "version", 3) == 0) {
/* ignore */
} else if (strnicmp(data, "rw", 2) == 0) {
......@@ -728,7 +763,7 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket)
*csocket = NULL;
return rc;
} else {
/* BB other socket options to set KEEPALIVE, timeouts? NODELAY? */
/* BB other socket options to set KEEPALIVE, NODELAY? */
cFYI(1,("Socket created"));
}
}
......@@ -763,6 +798,11 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket)
}
}
/* Eventually check for other socket options to change from
the default. sock_setsockopt not used because it expects
user space buffer */
(*csocket)->sk->sk_rcvtimeo = 8 * HZ;
return rc;
}
......@@ -863,6 +903,19 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
return -EINVAL;
}
/* this is needed for ASCII cp to Unicode converts */
if(volume_info.iocharset == NULL) {
cifs_sb->local_nls = load_nls_default();
/* load_nls_default can not return null */
} else {
cifs_sb->local_nls = load_nls(volume_info.iocharset);
if(cifs_sb->local_nls == NULL) {
cERROR(1,("CIFS mount error: iocharset %s not found",volume_info.iocharset));
FreeXid(xid);
return -ELIBACC;
}
}
existingCifsSes =
find_tcp_session(sin_server.sin_addr.s_addr,
volume_info.username, &srvTcp);
......@@ -999,6 +1052,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
/* on error free sesinfo and tcon struct if needed */
if (rc) {
if(atomic_read(&srvTcp->socketUseCount) == 0)
srvTcp->tcpStatus = CifsExiting;
/* If find_unc succeeded then rc == 0 so we can not end */
if (tcon) /* up here accidently freeing someone elses tcon struct */
tconInfoFree(tcon);
......
fs/cifs/dir.c
View file @ a9bbd05d
......@@ -218,6 +218,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
pCifsFile->netfid = fileHandle;
pCifsFile->pid = current->tgid;
pCifsFile->pInode = newinode;
pCifsFile->invalidHandle = FALSE;
pCifsFile->closePend = FALSE;
/* pCifsFile->pfile = file; */ /* put in at open time */
write_lock(&GlobalSMBSeslock);
list_add(&pCifsFile->tlist,&pTcon->openFileList);
......
fs/cifs/file.c
View file @ a9bbd05d
......@@ -122,6 +122,12 @@ cifs_open(struct inode *inode, struct file *file)
and calling get_inode_info with returned buf (at least
helps non-Unix server case */
buf = kmalloc(sizeof(FILE_ALL_INFO),GFP_KERNEL);
if(buf==0) {
if (full_path)
kfree(full_path);
FreeXid(xid);
return -ENOMEM;
}
rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, desiredAccess,
CREATE_NOT_DIR, &netfid, &oplock, buf, cifs_sb->local_nls);
if (rc) {
......@@ -138,6 +144,8 @@ cifs_open(struct inode *inode, struct file *file)
pCifsFile->pid = current->pid;
pCifsFile->pfile = file; /* needed for writepage */
pCifsFile->pInode = inode;
pCifsFile->invalidHandle = FALSE;
pCifsFile->closePend = FALSE;
write_lock(&file->f_owner.lock);
write_lock(&GlobalSMBSeslock);
list_add(&pCifsFile->tlist,&pTcon->openFileList);
......@@ -200,36 +208,143 @@ int relock_files(struct cifsFileInfo * cifsFile)
return rc;
}
static int cifs_reopen_file(struct inode *inode, struct file *file)
{
int rc = -EACCES;
int xid, oplock;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
struct cifsFileInfo *pCifsFile;
struct cifsInodeInfo *pCifsInode;
char *full_path = NULL;
int desiredAccess = 0x20197;
int disposition = FILE_OPEN;
__u16 netfid;
FILE_ALL_INFO * buf = NULL;
xid = GetXid();
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
full_path = build_path_from_dentry(file->f_dentry);
cFYI(1, (" inode = 0x%p file flags are 0x%x for %s", inode, file->f_flags,full_path));
if ((file->f_flags & O_ACCMODE) == O_RDONLY)
desiredAccess = GENERIC_READ;
else if ((file->f_flags & O_ACCMODE) == O_WRONLY)
desiredAccess = GENERIC_WRITE;
else if ((file->f_flags & O_ACCMODE) == O_RDWR)
desiredAccess = GENERIC_ALL;
if (oplockEnabled)
oplock = REQ_OPLOCK;
else
oplock = FALSE;
/* BB pass O_SYNC flag through on file attributes .. BB */
/* Also refresh inode by passing in file_info buf returned by SMBOpen
and calling get_inode_info with returned buf (at least
helps non-Unix server case */
buf = kmalloc(sizeof(FILE_ALL_INFO),GFP_KERNEL);
if(buf==0) {
if (full_path)
kfree(full_path);
FreeXid(xid);
return -ENOMEM;
}
rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, desiredAccess,
CREATE_NOT_DIR, &netfid, &oplock, buf, cifs_sb->local_nls);
if (rc) {
cFYI(1, ("cifs_open returned 0x%x ", rc));
cFYI(1, ("oplock: %d ", oplock));
} else {
if (file->private_data) {
pCifsFile = (struct cifsFileInfo *) file->private_data;
pCifsFile->netfid = netfid;
pCifsFile->invalidHandle = FALSE;
pCifsInode = CIFS_I(file->f_dentry->d_inode);
if(pCifsInode) {
if (pTcon->ses->capabilities & CAP_UNIX)
rc = cifs_get_inode_info_unix(&file->f_dentry->d_inode,
full_path, inode->i_sb);
else
rc = cifs_get_inode_info(&file->f_dentry->d_inode,
full_path, buf, inode->i_sb);
if(oplock == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = TRUE;
pCifsInode->clientCanCacheRead = TRUE;
cFYI(1,("Exclusive Oplock granted on inode %p",file->f_dentry->d_inode));
} else if(oplock == OPLOCK_READ) {
pCifsInode->clientCanCacheRead = TRUE;
pCifsInode->clientCanCacheAll = FALSE;
} else {
pCifsInode->clientCanCacheRead = FALSE;
pCifsInode->clientCanCacheAll = FALSE;
}
}
} else
rc = -EBADF;
}
if (buf)
kfree(buf);
if (full_path)
kfree(full_path);
FreeXid(xid);
return rc;
}
/* Try to reopen files that were closed when session to server was lost */
int reopen_files(struct cifsTconInfo * pTcon, struct nls_table * nlsinfo)
{
int rc = 0;
struct cifsFileInfo *open_file = NULL;
struct file * file = NULL;
struct list_head *tmp;
struct list_head *tmp1;
struct list_head invalid_file_list;
struct list_head * tmp;
struct list_head * tmp1;
/* list all files open on tree connection */
read_lock(&GlobalSMBSeslock);
INIT_LIST_HEAD(&invalid_file_list);
/* list all files open on tree connection and mark them invalid */
write_lock(&GlobalSMBSeslock);
list_for_each_safe(tmp, tmp1, &pTcon->openFileList) {
open_file = list_entry(tmp,struct cifsFileInfo, tlist);
if(open_file) {
if(open_file->search_resume_name) {
kfree(open_file->search_resume_name);
open_file->invalidHandle = TRUE;
list_move(&open_file->tlist,&invalid_file_list);
}
}
/* reopen files */
list_for_each_safe(tmp,tmp1, &invalid_file_list) {
/* BB need to fix above to check list end and skip entries we do not need to reopen */
open_file = list_entry(tmp,struct cifsFileInfo, tlist);
if(open_file == NULL) {
break;
} else {
if((open_file->invalidHandle == FALSE) &&
(open_file->closePend == FALSE)) {
list_move(&open_file->tlist,&pTcon->openFileList);
continue;
}
file = open_file->pfile;
list_del(&open_file->flist);
list_del(&open_file->tlist);
kfree(open_file);
if(file) {
file->private_data = NULL;
read_unlock(&GlobalSMBSeslock);
if(file->f_dentry == 0) {
cFYI(1,("Null dentry for file %p",file));
read_lock(&GlobalSMBSeslock);
} else {
rc = cifs_open(file->f_dentry->d_inode,file);
read_lock(&GlobalSMBSeslock);
write_unlock(&GlobalSMBSeslock);
rc = cifs_reopen_file(file->f_dentry->d_inode,file);
write_lock(&GlobalSMBSeslock);
if(file->private_data == NULL) {
tmp = invalid_file_list.next;
tmp1 = tmp->next;
continue;
}
list_move(&open_file->tlist,&pTcon->openFileList);
if(rc) {
cFYI(1,("reconnecting file %s failed with %d",
file->f_dentry->d_name.name,rc));
......@@ -240,8 +355,7 @@ int reopen_files(struct cifsTconInfo * pTcon, struct nls_table * nlsinfo)
}
}
}
}
read_unlock(&GlobalSMBSeslock);
write_unlock(&GlobalSMBSeslock);
return rc;
}
......@@ -260,11 +374,20 @@ cifs_close(struct inode *inode, struct file *file)
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
if (pSMBFile) {
pSMBFile->closePend = TRUE;
write_lock(&file->f_owner.lock);
if(pTcon) {
/* no sense reconnecting to close a file that is
already closed */
if (pTcon->tidStatus != CifsNeedReconnect) {
write_unlock(&file->f_owner.lock);
rc = CIFSSMBClose(xid,pTcon,pSMBFile->netfid);
write_lock(&file->f_owner.lock);
}
}
list_del(&pSMBFile->flist);
list_del(&pSMBFile->tlist);
write_unlock(&file->f_owner.lock);
rc = CIFSSMBClose(xid, pTcon, pSMBFile->netfid);
if(pSMBFile->search_resume_name)
kfree(pSMBFile->search_resume_name);
kfree(file->private_data);
......@@ -447,7 +570,6 @@ cifs_write(struct file * file, const char *write_data,
&bytes_written,
write_data + total_written, long_op);
if (rc || (bytes_written == 0)) {
FreeXid(xid);
if (total_written)
break;
else {
......@@ -492,7 +614,6 @@ cifs_partialpagewrite(struct page *page,unsigned from, unsigned to)
/* figure out which file struct to use
if (file->private_data == NULL) {
kunmap(page);
FreeXid(xid);
return -EBADF;
}
......@@ -546,6 +667,13 @@ cifs_partialpagewrite(struct page *page,unsigned from, unsigned to)
} else if(bytes_written < 0) {
rc = bytes_written;
}
break; /* now that we found a valid file handle
and tried to write to it we are done, no
sense continuing to loop looking for another */
}
if(tmp->next == NULL) {
cFYI(1,("File instance %p removed",tmp));
break;
}
}
read_unlock(&GlobalSMBSeslock);
......@@ -836,6 +964,7 @@ cifs_readpages(struct file *file, struct address_space *mapping,
for(i = 0;i<num_pages;) {
spin_lock(&mapping->page_lock);
if(list_empty(page_list)) {
spin_unlock(&mapping->page_lock);
break;
}
page = list_entry(page_list->prev, struct page, list);
......@@ -1236,8 +1365,10 @@ cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
rc = 0;
break;
}
} else
} else {
cifsFile->invalidHandle = TRUE;
CIFSFindClose(xid, pTcon, cifsFile->netfid);
}
if(cifsFile->search_resume_name) {
kfree(cifsFile->search_resume_name);
cifsFile->search_resume_name = NULL;
......@@ -1261,6 +1392,7 @@ cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
cifsFile =
(struct cifsFileInfo *) file->private_data;
cifsFile->netfid = searchHandle;
cifsFile->invalidHandle = FALSE;
} else {
rc = -ENOMEM;
break;
......
fs/cifs/misc.c
View file @ a9bbd05d
/*
* fs/cifs/misc.c
*
* Copyright (c) International Business Machines Corp., 2002,2003
* Copyright (C) International Business Machines Corp., 2002,2003
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
......@@ -42,23 +42,23 @@ _GetXid(void)
{
unsigned int xid;
write_lock(&GlobalMid_Lock);
spin_lock(&GlobalMid_Lock);
GlobalTotalActiveXid++;
if (GlobalTotalActiveXid > GlobalMaxActiveXid)
GlobalMaxActiveXid = GlobalTotalActiveXid; /* keep high water mark for number of simultaneous vfs ops in our filesystem */
xid = GlobalCurrentXid++;
write_unlock(&GlobalMid_Lock);
spin_unlock(&GlobalMid_Lock);
return xid;
}
void
_FreeXid(unsigned int xid)
{
write_lock(&GlobalMid_Lock);
spin_lock(&GlobalMid_Lock);
/* if(GlobalTotalActiveXid == 0)
BUG(); */
GlobalTotalActiveXid--;
write_unlock(&GlobalMid_Lock);
spin_unlock(&GlobalMid_Lock);
}
struct cifsSesInfo *
......@@ -217,10 +217,10 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ ,
buffer->Pid = tmp & 0xFFFF;
tmp >>= 16;
buffer->PidHigh = tmp & 0xFFFF;
write_lock(&GlobalMid_Lock);
spin_lock(&GlobalMid_Lock);
GlobalMid++;
buffer->Mid = GlobalMid;
write_unlock(&GlobalMid_Lock);
spin_unlock(&GlobalMid_Lock);
if (treeCon) {
buffer->Tid = treeCon->tid;
if (treeCon->ses) {
......
fs/cifs/smbdes.c
View file @ a9bbd05d
......@@ -6,7 +6,7 @@
SMB authentication protocol
Copyright (C) Andrew Tridgell 1998
Modified by Steve French (sfrench@us.ibm.com) 2002
Modified by Steve French (sfrench@us.ibm.com) 2002,2003
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
......@@ -376,41 +376,3 @@ cred_hash3(unsigned char *out, unsigned char *in, unsigned char *key, int forw)
key2[0] = key[7];
smbhash(out + 8, in + 8, key2, forw);
}
void
SamOEMhash(unsigned char *data, unsigned char *key, int val)
{
unsigned char s_box[256];
unsigned char index_i = 0;
unsigned char index_j = 0;
unsigned char j = 0;
int ind;
for (ind = 0; ind < 256; ind++) {
s_box[ind] = (unsigned char) ind;
}
for (ind = 0; ind < 256; ind++) {
unsigned char tc;
j += (s_box[ind] + key[ind % 16]);
tc = s_box[ind];
s_box[ind] = s_box[j];
s_box[j] = tc;
}
for (ind = 0; ind < val; ind++) {
unsigned char tc;
unsigned char t;
index_i++;
index_j += s_box[index_i];
tc = s_box[index_i];
s_box[index_i] = s_box[index_j];
s_box[index_j] = tc;
t = s_box[index_i] + s_box[index_j];
data[ind] = data[ind] ^ s_box[t];
}
}
fs/cifs/smbencrypt.c
View file @ a9bbd05d
......@@ -63,7 +63,6 @@ void cred_hash1(unsigned char *out, unsigned char *in, unsigned char *key);
void cred_hash2(unsigned char *out, unsigned char *in, unsigned char *key);
void cred_hash3(unsigned char *out, unsigned char *in, unsigned char *key,
int forw);
void SamOEMhash(unsigned char *data, unsigned char *key, int val);
/*The following definitions come from libsmb/smbencrypt.c */
......@@ -75,8 +74,6 @@ void SMBOWFencrypt(unsigned char passwd[16], unsigned char *c8,
void NTLMSSPOWFencrypt(unsigned char passwd[8],
unsigned char *ntlmchalresp, unsigned char p24[24]);
void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24);
int make_oem_passwd_hash(char data[516], const char *passwd,
unsigned char old_pw_hash[16], int unicode);
int decode_pw_buffer(char in_buffer[516], char *new_pwrd,
int new_pwrd_size, __u32 * new_pw_len);
......@@ -346,46 +343,6 @@ static struct data_blob LMv2_generate_response(const unsigned char ntlm_v2_hash[
return final_response;
}
int make_oem_passwd_hash(char data[516], const char *passwd,
unsigned char old_pw_hash[16], int unicode)
{
int new_pw_len = strlen(passwd) * (unicode ? 2 : 1);
if (new_pw_len > 512) {
cERROR(1,
("CIFS make_oem_passwd_hash: new password is too long."));
return FALSE;
}
/*
* Now setup the data area.
* We need to generate a random fill
* for this area to make it harder to
* decrypt. JRA.
*
*/
get_random_bytes(data, sizeof (data));
if (unicode) {
/* Note that passwd should be in DOS oem character set. */
/* dos_struni2( &data[512 - new_pw_len], passwd, 512); */
cifs_strtoUCS((wchar_t *) & data[512 - new_pw_len], passwd, 512, /* struct nls_table */
load_nls_default());
/* BB call unload_nls now or get nls differntly */
} else {
/* Note that passwd should be in DOS oem character set. */
strcpy(&data[512 - new_pw_len], passwd);
}
SIVAL(data, 512, new_pw_len);
#ifdef DEBUG_PASSWORD
DEBUG(100, ("make_oem_passwd_hash\n"));
dump_data(100, data, 516);
#endif
SamOEMhash((unsigned char *) data, (unsigned char *) old_pw_hash, 516);
return TRUE;
}
void
SMBsesskeygen_ntv2(const unsigned char kr[16],
const unsigned char *nt_resp, __u8 sess_key[16])
......
fs/cifs/transport.c
View file @ a9bbd05d
/*
* fs/cifs/transport.c
*
* Copyright (c) International Business Machines Corp., 2002
* Copyright (C) International Business Machines Corp., 2002,2003
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
......@@ -39,7 +39,6 @@ AllocMidQEntry(struct smb_hdr *smb_buffer, struct cifsSesInfo *ses)
struct mid_q_entry *temp;
int timeout = 10 * HZ;
/* BB add spinlock to protect midq for each session BB */
if (ses == NULL) {
cERROR(1, ("Null session passed in to AllocMidQEntry "));
return NULL;
......@@ -72,11 +71,11 @@ AllocMidQEntry(struct smb_hdr *smb_buffer, struct cifsSesInfo *ses)
}
if (ses->server->tcpStatus == CifsGood) {
write_lock(&GlobalMid_Lock);
spin_lock(&GlobalMid_Lock);
list_add_tail(&temp->qhead, &ses->server->pending_mid_q);
atomic_inc(&midCount);
temp->midState = MID_REQUEST_ALLOCATED;
write_unlock(&GlobalMid_Lock);
spin_unlock(&GlobalMid_Lock);
} else {
cERROR(1,("Need to reconnect after session died to server"));
if (temp)
......@@ -89,12 +88,11 @@ AllocMidQEntry(struct smb_hdr *smb_buffer, struct cifsSesInfo *ses)
void
DeleteMidQEntry(struct mid_q_entry *midEntry)
{
/* BB add spinlock to protect midq for each session BB */
write_lock(&GlobalMid_Lock);
spin_lock(&GlobalMid_Lock);
midEntry->midState = MID_FREE;
list_del(&midEntry->qhead);
atomic_dec(&midCount);
write_unlock(&GlobalMid_Lock);
spin_unlock(&GlobalMid_Lock);
buf_release(midEntry->resp_buf);
kmem_cache_free(cifs_mid_cachep, midEntry);
}
......@@ -115,9 +113,9 @@ AllocOplockQEntry(struct inode * pinode, __u16 fid, struct cifsTconInfo * tcon)
temp->pinode = pinode;
temp->tcon = tcon;
temp->netfid = fid;
write_lock(&GlobalMid_Lock);
spin_lock(&GlobalMid_Lock);
list_add_tail(&temp->qhead, &GlobalOplock_Q);
write_unlock(&GlobalMid_Lock);
spin_unlock(&GlobalMid_Lock);
}
return temp;
......@@ -125,11 +123,10 @@ AllocOplockQEntry(struct inode * pinode, __u16 fid, struct cifsTconInfo * tcon)
void DeleteOplockQEntry(struct oplock_q_entry * oplockEntry)
{
/* BB add spinlock to protect midq for each session BB */
write_lock(&GlobalMid_Lock);
spin_lock(&GlobalMid_Lock);
/* should we check if list empty first? */
list_del(&oplockEntry->qhead);
write_unlock(&GlobalMid_Lock);
spin_unlock(&GlobalMid_Lock);
kmem_cache_free(cifs_oplock_cachep, oplockEntry);
}
......@@ -240,6 +237,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
else {
cFYI(1,("No response buffer"));
DeleteMidQEntry(midQ);
ses->server->tcpStatus = CifsNeedReconnect;
return -EIO;
}
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7