summaryrefslogtreecommitdiffstats
path: root/fs/cifs
diff options
context:
space:
mode:
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/cifsencrypt.c6
-rw-r--r--fs/cifs/connect.c15
-rw-r--r--fs/cifs/file.c36
-rw-r--r--fs/cifs/inode.c4
-rw-r--r--fs/cifs/smb2misc.c2
-rw-r--r--fs/cifs/smb2ops.c3
-rw-r--r--fs/cifs/smb2pdu.c17
7 files changed, 47 insertions, 36 deletions
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 4ac7445e6ec7..aa0dc2573374 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -1,6 +1,9 @@
/*
* fs/cifs/cifsencrypt.c
*
+ * Encryption and hashing operations relating to NTLM, NTLMv2. See MS-NLMP
+ * for more detailed information
+ *
* Copyright (C) International Business Machines Corp., 2005,2013
* Author(s): Steve French (sfrench@us.ibm.com)
*
@@ -515,7 +518,8 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
__func__);
return rc;
}
- } else if (ses->serverName) {
+ } else {
+ /* We use ses->serverName if no domain name available */
len = strlen(ses->serverName);
server = kmalloc(2 + (len * 2), GFP_KERNEL);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 2a772da16b83..480cf9c81d50 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1599,6 +1599,8 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
pr_warn("CIFS: username too long\n");
goto cifs_parse_mount_err;
}
+
+ kfree(vol->username);
vol->username = kstrdup(string, GFP_KERNEL);
if (!vol->username)
goto cifs_parse_mount_err;
@@ -1700,6 +1702,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
goto cifs_parse_mount_err;
}
+ kfree(vol->domainname);
vol->domainname = kstrdup(string, GFP_KERNEL);
if (!vol->domainname) {
pr_warn("CIFS: no memory for domainname\n");
@@ -1731,6 +1734,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
}
if (strncasecmp(string, "default", 7) != 0) {
+ kfree(vol->iocharset);
vol->iocharset = kstrdup(string,
GFP_KERNEL);
if (!vol->iocharset) {
@@ -2913,8 +2917,7 @@ ip_rfc1001_connect(struct TCP_Server_Info *server)
* calling name ends in null (byte 16) from old smb
* convention.
*/
- if (server->workstation_RFC1001_name &&
- server->workstation_RFC1001_name[0] != 0)
+ if (server->workstation_RFC1001_name[0] != 0)
rfc1002mangle(ses_init_buf->trailer.
session_req.calling_name,
server->workstation_RFC1001_name,
@@ -3446,7 +3449,7 @@ cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *volume_info)
int referral_walks_count = 0;
#endif
- rc = bdi_setup_and_register(&cifs_sb->bdi, "cifs", BDI_CAP_MAP_COPY);
+ rc = bdi_setup_and_register(&cifs_sb->bdi, "cifs");
if (rc)
return rc;
@@ -3692,6 +3695,12 @@ CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
#endif /* CIFS_WEAK_PW_HASH */
rc = SMBNTencrypt(tcon->password, ses->server->cryptkey,
bcc_ptr, nls_codepage);
+ if (rc) {
+ cifs_dbg(FYI, "%s Can't generate NTLM rsp. Error: %d\n",
+ __func__, rc);
+ cifs_buf_release(smb_buffer);
+ return rc;
+ }
bcc_ptr += CIFS_AUTH_RESP_SIZE;
if (ses->capabilities & CAP_UNICODE) {
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 74f12877493a..ca30c391a894 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1113,11 +1113,6 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile)
return rc;
}
-/* copied from fs/locks.c with a name change */
-#define cifs_for_each_lock(inode, lockp) \
- for (lockp = &inode->i_flock; *lockp != NULL; \
- lockp = &(*lockp)->fl_next)
-
struct lock_to_push {
struct list_head llist;
__u64 offset;
@@ -1132,8 +1127,9 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile)
{
struct inode *inode = cfile->dentry->d_inode;
struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
- struct file_lock *flock, **before;
- unsigned int count = 0, i = 0;
+ struct file_lock *flock;
+ struct file_lock_context *flctx = inode->i_flctx;
+ unsigned int count = 0, i;
int rc = 0, xid, type;
struct list_head locks_to_send, *el;
struct lock_to_push *lck, *tmp;
@@ -1141,12 +1137,14 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile)
xid = get_xid();
- spin_lock(&inode->i_lock);
- cifs_for_each_lock(inode, before) {
- if ((*before)->fl_flags & FL_POSIX)
- count++;
+ if (!flctx)
+ goto out;
+
+ spin_lock(&flctx->flc_lock);
+ list_for_each(el, &flctx->flc_posix) {
+ count++;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&flctx->flc_lock);
INIT_LIST_HEAD(&locks_to_send);
@@ -1155,7 +1153,7 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile)
* added to the list while we are holding cinode->lock_sem that
* protects locking operations of this inode.
*/
- for (; i < count; i++) {
+ for (i = 0; i < count; i++) {
lck = kmalloc(sizeof(struct lock_to_push), GFP_KERNEL);
if (!lck) {
rc = -ENOMEM;
@@ -1165,11 +1163,8 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile)
}
el = locks_to_send.next;
- spin_lock(&inode->i_lock);
- cifs_for_each_lock(inode, before) {
- flock = *before;
- if ((flock->fl_flags & FL_POSIX) == 0)
- continue;
+ spin_lock(&flctx->flc_lock);
+ list_for_each_entry(flock, &flctx->flc_posix, fl_list) {
if (el == &locks_to_send) {
/*
* The list ended. We don't have enough allocated
@@ -1189,9 +1184,8 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile)
lck->length = length;
lck->type = type;
lck->offset = flock->fl_start;
- el = el->next;
}
- spin_unlock(&inode->i_lock);
+ spin_unlock(&flctx->flc_lock);
list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) {
int stored_rc;
@@ -1829,6 +1823,7 @@ refind_writable:
cifsFileInfo_put(inv_file);
spin_lock(&cifs_file_list_lock);
++refind;
+ inv_file = NULL;
goto refind_writable;
}
}
@@ -3248,7 +3243,6 @@ static struct vm_operations_struct cifs_file_vm_ops = {
.fault = filemap_fault,
.map_pages = filemap_map_pages,
.page_mkwrite = cifs_page_mkwrite,
- .remap_pages = generic_file_remap_pages,
};
int cifs_file_strict_mmap(struct file *file, struct vm_area_struct *vma)
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 0c3ce464cae4..3e126d7bb2ea 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -771,6 +771,8 @@ cifs_get_inode_info(struct inode **inode, const char *full_path,
cifs_buf_release(srchinf->ntwrk_buf_start);
}
kfree(srchinf);
+ if (rc)
+ goto cgii_exit;
} else
goto cgii_exit;
@@ -937,8 +939,6 @@ retry_iget5_locked:
inode->i_flags |= S_NOATIME | S_NOCMTIME;
if (inode->i_state & I_NEW) {
inode->i_ino = hash;
- if (S_ISREG(inode->i_mode))
- inode->i_data.backing_dev_info = sb->s_bdi;
#ifdef CONFIG_CIFS_FSCACHE
/* initialize per-inode cache cookie pointer */
CIFS_I(inode)->fscache = NULL;
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 689f035915cf..22dfdf17d065 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -322,7 +322,7 @@ smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr)
/* return pointer to beginning of data area, ie offset from SMB start */
if ((*off != 0) && (*len != 0))
- return hdr->ProtocolId + *off;
+ return (char *)(&hdr->ProtocolId[0]) + *off;
else
return NULL;
}
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 96b5d40a2ece..eab05e1aa587 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -684,7 +684,8 @@ smb2_clone_range(const unsigned int xid,
/* No need to change MaxChunks since already set to 1 */
chunk_sizes_updated = true;
- }
+ } else
+ goto cchunk_out;
}
cchunk_out:
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 3417340bf89e..65cd7a84c8bc 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1218,7 +1218,7 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
struct smb2_ioctl_req *req;
struct smb2_ioctl_rsp *rsp;
struct TCP_Server_Info *server;
- struct cifs_ses *ses = tcon->ses;
+ struct cifs_ses *ses;
struct kvec iov[2];
int resp_buftype;
int num_iovecs;
@@ -1233,6 +1233,11 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
if (plen)
*plen = 0;
+ if (tcon)
+ ses = tcon->ses;
+ else
+ return -EIO;
+
if (ses && (ses->server))
server = ses->server;
else
@@ -1296,14 +1301,12 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
rsp = (struct smb2_ioctl_rsp *)iov[0].iov_base;
if ((rc != 0) && (rc != -EINVAL)) {
- if (tcon)
- cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
+ cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
goto ioctl_exit;
} else if (rc == -EINVAL) {
if ((opcode != FSCTL_SRV_COPYCHUNK_WRITE) &&
(opcode != FSCTL_SRV_COPYCHUNK)) {
- if (tcon)
- cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
+ cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
goto ioctl_exit;
}
}
@@ -1629,7 +1632,7 @@ SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
rc = SendReceive2(xid, ses, iov, 1, &resp_buftype, 0);
- if ((rc != 0) && tcon)
+ if (rc != 0)
cifs_stats_fail_inc(tcon, SMB2_FLUSH_HE);
free_rsp_buf(resp_buftype, iov[0].iov_base);
@@ -2114,7 +2117,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
struct kvec iov[2];
int rc = 0;
int len;
- int resp_buftype;
+ int resp_buftype = CIFS_NO_BUFFER;
unsigned char *bufptr;
struct TCP_Server_Info *server;
struct cifs_ses *ses = tcon->ses;
OpenPOWER on IntegriCloud