From 083d3a2cff514c5301f3a043642940d4d5371b22 Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 3 Mar 2006 09:53:36 +0000 Subject: [PATCH] [CIFS] Workaround various server bugs found in testing at connectathon - slow down negprot 1ms during mount when RFC1001 over port 139 to give buggy servers time to clear sess_init - remap some plausible but incorrect SMB return codes to the right ones in truncate and hardlink paths Signed-off-by: Steve French --- fs/cifs/CHANGES | 3 ++- fs/cifs/cifsfs.h | 2 +- fs/cifs/connect.c | 8 ++++++++ fs/cifs/inode.c | 4 ++-- fs/cifs/link.c | 2 +- 5 files changed, 14 insertions(+), 5 deletions(-) diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index 25d7df4..6238da9 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -8,7 +8,8 @@ max smb buffer size when CIFSMaxBufSize over 64K. Fix oops in cifs_user_read and cifs_readpages (when EAGAIN on send of smb on socket is returned over and over). Add POSIX (advisory) byte range locking support (requires server with newest CIFS UNIX Extensions -to the protocol implemented). +to the protocol implemented). Slow down negprot slightly in port 139 +RFC1001 case to give session_init time on buggy servers. Version 1.40 ------------ diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index 4cf10f2..b4dcdc2 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -99,5 +99,5 @@ extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t); extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); extern int cifs_ioctl (struct inode * inode, struct file * filep, unsigned int command, unsigned long arg); -#define CIFS_VERSION "1.41" +#define CIFS_VERSION "1.42" #endif /* _CIFSFS_H */ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index b8f1baa..3651dec 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1476,6 +1476,14 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, rc = smb_send(*csocket, smb_buf, 0x44, (struct sockaddr *)psin_server); kfree(ses_init_buf); + msleep(1); /* RFC1001 layer in at least one server + requires very short break before negprot + presumably because not expecting negprot + to follow so fast. This is a simple + solution that works without + complicating the code and causes no + significant slowing down on mount + for everyone else */ } /* else the negprot may still work without this even though malloc failed */ diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 0a46a93..b21038b 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1166,7 +1166,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) nfid, npid, FALSE); atomic_dec(&open_file->wrtPending); cFYI(1,("SetFSize for attrs rc = %d", rc)); - if((rc == -EINVAL) ||(rc == -EOPNOTSUPP)) { + if((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { int bytes_written; rc = CIFSSMBWrite(xid, pTcon, nfid, 0, attrs->ia_size, @@ -1188,7 +1188,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); cFYI(1, ("SetEOF by path (setattrs) rc = %d", rc)); - if(rc == -EINVAL) { + if((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { __u16 netfid; int oplock = FALSE; diff --git a/fs/cifs/link.c b/fs/cifs/link.c index 0f99aae..ce86ec6 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -67,7 +67,7 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, cifs_sb_target->local_nls, cifs_sb_target->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if(rc == -EIO) + if((rc == -EIO) || (rc == -EINVAL)) rc = -EOPNOTSUPP; } -- 1.8.2.3