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-rw-r--r--fs/cifs/CHANGES3
-rw-r--r--fs/cifs/cifsencrypt.c55
-rw-r--r--fs/cifs/cifsproto.h6
-rw-r--r--fs/cifs/cifssmb.c5
-rw-r--r--fs/cifs/file.c6
-rw-r--r--fs/cifs/transport.c19
6 files changed, 71 insertions, 23 deletions
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 8bef2f3a413..1d2137561c5 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,6 +1,7 @@
Version 1.40
------------
-Use fsuid (fsgid) more consistently instead of uid (gid).
+Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
+of readpages by eliminating one extra memcpy.
Version 1.39
------------
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index fe2bb7c4c91..a2c24858d40 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/cifsencrypt.c
*
- * Copyright (C) International Business Machines Corp., 2003
+ * Copyright (C) International Business Machines Corp., 2005
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -82,6 +82,59 @@ int cifs_sign_smb(struct smb_hdr * cifs_pdu, struct TCP_Server_Info * server,
return rc;
}
+static int cifs_calc_signature2(const struct kvec * iov, int n_vec,
+ const char * key, char * signature)
+{
+ struct MD5Context context;
+
+ if((iov == NULL) || (signature == NULL))
+ return -EINVAL;
+
+ MD5Init(&context);
+ MD5Update(&context,key,CIFS_SESSION_KEY_SIZE+16);
+
+/* MD5Update(&context,cifs_pdu->Protocol,cifs_pdu->smb_buf_length); */ /* BB FIXME BB */
+
+ MD5Final(signature,&context);
+
+ return -EOPNOTSUPP;
+/* return 0; */
+}
+
+
+int cifs_sign_smb2(struct kvec * iov, int n_vec, struct TCP_Server_Info *server,
+ __u32 * pexpected_response_sequence_number)
+{
+ int rc = 0;
+ char smb_signature[20];
+ struct smb_hdr * cifs_pdu = iov[0].iov_base;
+
+ if((cifs_pdu == NULL) || (server == NULL))
+ return -EINVAL;
+
+ if((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0)
+ return rc;
+
+ spin_lock(&GlobalMid_Lock);
+ cifs_pdu->Signature.Sequence.SequenceNumber =
+ cpu_to_le32(server->sequence_number);
+ cifs_pdu->Signature.Sequence.Reserved = 0;
+
+ *pexpected_response_sequence_number = server->sequence_number++;
+ server->sequence_number++;
+ spin_unlock(&GlobalMid_Lock);
+
+ rc = cifs_calc_signature2(iov, n_vec, server->mac_signing_key,
+ smb_signature);
+ if(rc)
+ memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
+ else
+ memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8);
+
+ return rc;
+
+}
+
int cifs_verify_signature(struct smb_hdr * cifs_pdu, const char * mac_key,
__u32 expected_sequence_number)
{
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 1b73f4f4c5c..c058f8a45b2 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -48,7 +48,7 @@ extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
struct smb_hdr * /* out */ ,
int * /* bytes returned */ , const int long_op);
extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
- struct kvec *, int /* nvec */,
+ struct kvec *, int /* nvec to send */,
int * /* bytes returned */ , const int long_op);
extern int checkSMBhdr(struct smb_hdr *smb, __u16 mid);
extern int checkSMB(struct smb_hdr *smb, __u16 mid, int length);
@@ -237,12 +237,10 @@ extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
const __u64 lseek, unsigned int *nbytes,
const char *buf, const char __user *ubuf,
const int long_op);
-#ifdef CONFIG_CIFS_EXPERIMENTAL
extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
const int netfid, const unsigned int count,
const __u64 offset, unsigned int *nbytes,
struct kvec *iov, const int nvec, const int long_op);
-#endif /* CONFIG_CIFS_EXPERIMENTAL */
extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName, __u64 * inode_number,
const struct nls_table *nls_codepage,
@@ -269,6 +267,8 @@ extern void tconInfoFree(struct cifsTconInfo *);
extern int cifs_reconnect(struct TCP_Server_Info *server);
extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *,__u32 *);
+extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
+ __u32 *);
extern int cifs_verify_signature(struct smb_hdr *, const char * mac_key,
__u32 expected_sequence_number);
extern int cifs_calculate_mac_key(char * key,const char * rn,const char * pass);
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 6867e556d37..3565d3bf2e3 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1155,7 +1155,6 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
return rc;
}
-#ifdef CONFIG_CIFS_EXPERIMENTAL
int
CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
const int netfid, const unsigned int count,
@@ -1223,7 +1222,7 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
*nbytes = le16_to_cpu(pSMBr->CountHigh);
*nbytes = (*nbytes) << 16;
*nbytes += le16_to_cpu(pSMBr->Count);
- }
+ }
cifs_small_buf_release(pSMB);
@@ -1234,8 +1233,6 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
}
-#endif /* CIFS_EXPERIMENTAL */
-
int
CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
const __u16 smb_file_id, const __u64 len,
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 14a1c72ced9..b67be3d8c01 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -870,7 +870,6 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
if (rc != 0)
break;
}
-#ifdef CONFIG_CIFS_EXPERIMENTAL
/* BB FIXME We can not sign across two buffers yet */
if((experimEnabled) && ((pTcon->ses->server->secMode &
(SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) == 0)) {
@@ -889,7 +888,6 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
iov, 1, long_op);
} else
/* BB FIXME fixup indentation of line below */
-#endif
rc = CIFSSMBWrite(xid, pTcon,
open_file->netfid,
min_t(const int, cifs_sb->wsize,
@@ -1026,7 +1024,6 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to)
return rc;
}
-#ifdef CONFIG_CIFS_EXPERIMENTAL
static int cifs_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
@@ -1229,7 +1226,6 @@ retry:
return rc;
}
-#endif
static int cifs_writepage(struct page* page, struct writeback_control *wbc)
{
@@ -1875,9 +1871,7 @@ struct address_space_operations cifs_addr_ops = {
.readpage = cifs_readpage,
.readpages = cifs_readpages,
.writepage = cifs_writepage,
-#ifdef CONFIG_CIFS_EXPERIMENTAL
.writepages = cifs_writepages,
-#endif
.prepare_write = cifs_prepare_write,
.commit_write = cifs_commit_write,
.set_page_dirty = __set_page_dirty_nobuffers,
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index f8871196098..0abfbf4e4a4 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -206,7 +206,6 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer,
return rc;
}
-#ifdef CONFIG_CIFS_EXPERIMENTAL
static int
smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec,
struct sockaddr *sin)
@@ -392,8 +391,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
return -ENOMEM;
}
-/* BB FIXME */
-/* rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number); */
+ rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number);
midQ->midState = MID_REQUEST_SUBMITTED;
#ifdef CONFIG_CIFS_STATS2
@@ -492,11 +490,17 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
if (midQ->resp_buf &&
(midQ->midState == MID_RESPONSE_RECEIVED)) {
+
in_buf->smb_buf_length = receive_len;
- /* BB verify that length would not overrun small buf */
- memcpy((char *)in_buf + 4,
- (char *)midQ->resp_buf + 4,
- receive_len);
+ if(receive_len > 500) {
+ /* use multiple buffers on way out */
+ } else {
+ memcpy((char *)in_buf + 4,
+ (char *)midQ->resp_buf + 4,
+ receive_len);
+ iov[0].iov_len = receive_len + 4;
+ iov[1].iov_len = 0;
+ }
dump_smb(in_buf, 80);
/* convert the length into a more usable form */
@@ -549,7 +553,6 @@ out_unlock2:
return rc;
}
-#endif /* CIFS_EXPERIMENTAL */
int
SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-22 11:44:01 +0000