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-rw-r--r--fs/nls/nls_base.c4
-rw-r--r--fs/smb/client/cifsglob.h1
-rw-r--r--fs/smb/client/cifssmb.c3
-rw-r--r--fs/smb/client/connect.c5
-rw-r--r--fs/smb/client/ioctl.c5
-rw-r--r--fs/smb/client/misc.c1
-rw-r--r--fs/smb/client/sess.c4
-rw-r--r--fs/smb/client/smb2pdu.c3
-rw-r--r--include/linux/nls.h2
9 files changed, 20 insertions, 8 deletions
diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
index 52ccd34b1e79..a026dbd3593f 100644
--- a/fs/nls/nls_base.c
+++ b/fs/nls/nls_base.c
@@ -272,7 +272,7 @@ int unregister_nls(struct nls_table * nls)
return -EINVAL;
}
-static struct nls_table *find_nls(char *charset)
+static struct nls_table *find_nls(const char *charset)
{
struct nls_table *nls;
spin_lock(&nls_lock);
@@ -288,7 +288,7 @@ static struct nls_table *find_nls(char *charset)
return nls;
}
-struct nls_table *load_nls(char *charset)
+struct nls_table *load_nls(const char *charset)
{
return try_then_request_module(find_nls(charset), "nls_%s", charset);
}
diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index e5eec6d38d02..657dee4b2c8c 100644
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -1062,6 +1062,7 @@ struct cifs_ses {
unsigned long chans_need_reconnect;
/* ========= end: protected by chan_lock ======== */
struct cifs_ses *dfs_root_ses;
+ struct nls_table *local_nls;
};
static inline bool
diff --git a/fs/smb/client/cifssmb.c b/fs/smb/client/cifssmb.c
index 9dee267f1893..25503f1a4fd2 100644
--- a/fs/smb/client/cifssmb.c
+++ b/fs/smb/client/cifssmb.c
@@ -129,7 +129,7 @@ again:
}
spin_unlock(&server->srv_lock);
- nls_codepage = load_nls_default();
+ nls_codepage = ses->local_nls;
/*
* need to prevent multiple threads trying to simultaneously
@@ -200,7 +200,6 @@ out:
rc = -EAGAIN;
}
- unload_nls(nls_codepage);
return rc;
}
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index 9280e253bf09..238538dde4e3 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -1842,6 +1842,10 @@ static int match_session(struct cifs_ses *ses, struct smb3_fs_context *ctx)
CIFS_MAX_PASSWORD_LEN))
return 0;
}
+
+ if (strcmp(ctx->local_nls->charset, ses->local_nls->charset))
+ return 0;
+
return 1;
}
@@ -2286,6 +2290,7 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx)
ses->sectype = ctx->sectype;
ses->sign = ctx->sign;
+ ses->local_nls = load_nls(ctx->local_nls->charset);
/* add server as first channel */
spin_lock(&ses->chan_lock);
diff --git a/fs/smb/client/ioctl.c b/fs/smb/client/ioctl.c
index e1904b86ed96..f7160003e0ed 100644
--- a/fs/smb/client/ioctl.c
+++ b/fs/smb/client/ioctl.c
@@ -478,6 +478,11 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
}
cifs_sb = CIFS_SB(inode->i_sb);
tlink = cifs_sb_tlink(cifs_sb);
+ if (IS_ERR(tlink)) {
+ rc = PTR_ERR(tlink);
+ break;
+ }
+
tcon = tlink_tcon(tlink);
rc = cifs_dump_full_key(tcon, (void __user *)arg);
cifs_put_tlink(tlink);
diff --git a/fs/smb/client/misc.c b/fs/smb/client/misc.c
index 70dbfe6584f9..d7e85d9a2655 100644
--- a/fs/smb/client/misc.c
+++ b/fs/smb/client/misc.c
@@ -95,6 +95,7 @@ sesInfoFree(struct cifs_ses *buf_to_free)
return;
}
+ unload_nls(buf_to_free->local_nls);
atomic_dec(&sesInfoAllocCount);
kfree(buf_to_free->serverOS);
kfree(buf_to_free->serverDomain);
diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c
index 335c078c42fb..c57ca2050b73 100644
--- a/fs/smb/client/sess.c
+++ b/fs/smb/client/sess.c
@@ -1013,6 +1013,7 @@ setup_ntlm_smb3_neg_ret:
}
+/* See MS-NLMP 2.2.1.3 */
int build_ntlmssp_auth_blob(unsigned char **pbuffer,
u16 *buflen,
struct cifs_ses *ses,
@@ -1047,7 +1048,8 @@ int build_ntlmssp_auth_blob(unsigned char **pbuffer,
flags = ses->ntlmssp->server_flags | NTLMSSP_REQUEST_TARGET |
NTLMSSP_NEGOTIATE_TARGET_INFO | NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED;
-
+ /* we only send version information in ntlmssp negotiate, so do not set this flag */
+ flags = flags & ~NTLMSSP_NEGOTIATE_VERSION;
tmp = *pbuffer + sizeof(AUTHENTICATE_MESSAGE);
sec_blob->NegotiateFlags = cpu_to_le32(flags);
diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index e04766fe6f80..a457f07f820d 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -242,7 +242,7 @@ again:
}
spin_unlock(&server->srv_lock);
- nls_codepage = load_nls_default();
+ nls_codepage = ses->local_nls;
/*
* need to prevent multiple threads trying to simultaneously
@@ -324,7 +324,6 @@ out:
rc = -EAGAIN;
}
failed:
- unload_nls(nls_codepage);
return rc;
}
diff --git a/include/linux/nls.h b/include/linux/nls.h
index 499e486b3722..e0bf8367b274 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -47,7 +47,7 @@ enum utf16_endian {
/* nls_base.c */
extern int __register_nls(struct nls_table *, struct module *);
extern int unregister_nls(struct nls_table *);
-extern struct nls_table *load_nls(char *);
+extern struct nls_table *load_nls(const char *charset);
extern void unload_nls(struct nls_table *);
extern struct nls_table *load_nls_default(void);
#define register_nls(nls) __register_nls((nls), THIS_MODULE)