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-rw-r--r--fs/cifs/cifs_debug.c2
-rw-r--r--fs/cifs/cifs_debug.h9
-rw-r--r--fs/cifs/cifsfs.c87
-rw-r--r--fs/cifs/cifsfs.h6
-rw-r--r--fs/cifs/cifsglob.h16
-rw-r--r--fs/cifs/cifsproto.h5
-rw-r--r--fs/cifs/connect.c36
-rw-r--r--fs/cifs/file.c20
-rw-r--r--fs/cifs/inode.c24
-rw-r--r--fs/cifs/ioctl.c126
-rw-r--r--fs/cifs/link.c10
-rw-r--r--fs/cifs/misc.c2
-rw-r--r--fs/cifs/readdir.c1
-rw-r--r--fs/cifs/smb2misc.c36
-rw-r--r--fs/cifs/smb2ops.c13
-rw-r--r--fs/cifs/smb2pdu.c10
-rw-r--r--fs/cifs/smb2pdu.h8
-rw-r--r--fs/cifs/smb2proto.h3
-rw-r--r--fs/cifs/smb2transport.c102
-rw-r--r--fs/cifs/transport.c6
-rw-r--r--fs/cifs/xattr.c16
21 files changed, 389 insertions, 149 deletions
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 7febcf2475c5..50b268483302 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -50,7 +50,7 @@ void cifs_vfs_err(const char *fmt, ...)
vaf.fmt = fmt;
vaf.va = &args;
- pr_err("CIFS VFS: %pV", &vaf);
+ pr_err_ratelimited("CIFS VFS: %pV", &vaf);
va_end(args);
}
diff --git a/fs/cifs/cifs_debug.h b/fs/cifs/cifs_debug.h
index f40fbaca1b2a..66cf0f9fff89 100644
--- a/fs/cifs/cifs_debug.h
+++ b/fs/cifs/cifs_debug.h
@@ -51,14 +51,13 @@ __printf(1, 2) void cifs_vfs_err(const char *fmt, ...);
/* information message: e.g., configuration, major event */
#define cifs_dbg(type, fmt, ...) \
do { \
- if (type == FYI) { \
- if (cifsFYI & CIFS_INFO) { \
- pr_debug("%s: " fmt, __FILE__, ##__VA_ARGS__); \
- } \
+ if (type == FYI && cifsFYI & CIFS_INFO) { \
+ pr_debug_ratelimited("%s: " \
+ fmt, __FILE__, ##__VA_ARGS__); \
} else if (type == VFS) { \
cifs_vfs_err(fmt, ##__VA_ARGS__); \
} else if (type == NOISY && type != 0) { \
- pr_debug(fmt, ##__VA_ARGS__); \
+ pr_debug_ratelimited(fmt, ##__VA_ARGS__); \
} \
} while (0)
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index cbc0f4bca0c0..c48ca13673e3 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -507,6 +507,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
seq_printf(s, ",rsize=%u", cifs_sb->rsize);
seq_printf(s, ",wsize=%u", cifs_sb->wsize);
+ seq_printf(s, ",echo_interval=%lu",
+ tcon->ses->server->echo_interval / HZ);
/* convert actimeo and display it in seconds */
seq_printf(s, ",actimeo=%lu", cifs_sb->actimeo / HZ);
@@ -640,9 +642,9 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
while (*s && *s != sep)
s++;
- mutex_lock(&dir->i_mutex);
+ inode_lock(dir);
child = lookup_one_len(p, dentry, s - p);
- mutex_unlock(&dir->i_mutex);
+ inode_unlock(dir);
dput(dentry);
dentry = child;
} while (!IS_ERR(dentry));
@@ -752,6 +754,9 @@ cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter)
ssize_t rc;
struct inode *inode = file_inode(iocb->ki_filp);
+ if (iocb->ki_filp->f_flags & O_DIRECT)
+ return cifs_user_readv(iocb, iter);
+
rc = cifs_revalidate_mapping(inode);
if (rc)
return rc;
@@ -766,6 +771,18 @@ static ssize_t cifs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
ssize_t written;
int rc;
+ if (iocb->ki_filp->f_flags & O_DIRECT) {
+ written = cifs_user_writev(iocb, from);
+ if (written > 0 && CIFS_CACHE_READ(cinode)) {
+ cifs_zap_mapping(inode);
+ cifs_dbg(FYI,
+ "Set no oplock for inode=%p after a write operation\n",
+ inode);
+ cinode->oplock = 0;
+ }
+ return written;
+ }
+
written = cifs_get_writer(cinode);
if (written)
return written;
@@ -900,8 +917,7 @@ const struct inode_operations cifs_file_inode_ops = {
const struct inode_operations cifs_symlink_inode_ops = {
.readlink = generic_readlink,
- .follow_link = cifs_follow_link,
- .put_link = kfree_put_link,
+ .get_link = cifs_get_link,
.permission = cifs_permission,
/* BB add the following two eventually */
/* revalidate: cifs_revalidate,
@@ -914,6 +930,59 @@ const struct inode_operations cifs_symlink_inode_ops = {
#endif
};
+static int cifs_clone_file_range(struct file *src_file, loff_t off,
+ struct file *dst_file, loff_t destoff, u64 len)
+{
+ struct inode *src_inode = file_inode(src_file);
+ struct inode *target_inode = file_inode(dst_file);
+ struct cifsFileInfo *smb_file_src = src_file->private_data;
+ struct cifsFileInfo *smb_file_target = dst_file->private_data;
+ struct cifs_tcon *target_tcon = tlink_tcon(smb_file_target->tlink);
+ unsigned int xid;
+ int rc;
+
+ cifs_dbg(FYI, "clone range\n");
+
+ xid = get_xid();
+
+ if (!src_file->private_data || !dst_file->private_data) {
+ rc = -EBADF;
+ cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");
+ goto out;
+ }
+
+ /*
+ * Note: cifs case is easier than btrfs since server responsible for
+ * checks for proper open modes and file type and if it wants
+ * server could even support copy of range where source = target
+ */
+ lock_two_nondirectories(target_inode, src_inode);
+
+ if (len == 0)
+ len = src_inode->i_size - off;
+
+ cifs_dbg(FYI, "about to flush pages\n");
+ /* should we flush first and last page first */
+ truncate_inode_pages_range(&target_inode->i_data, destoff,
+ PAGE_CACHE_ALIGN(destoff + len)-1);
+
+ if (target_tcon->ses->server->ops->duplicate_extents)
+ rc = target_tcon->ses->server->ops->duplicate_extents(xid,
+ smb_file_src, smb_file_target, off, len, destoff);
+ else
+ rc = -EOPNOTSUPP;
+
+ /* force revalidate of size and timestamps of target file now
+ that target is updated on the server */
+ CIFS_I(target_inode)->time = 0;
+ /* although unlocking in the reverse order from locking is not
+ strictly necessary here it is a little cleaner to be consistent */
+ unlock_two_nondirectories(src_inode, target_inode);
+out:
+ free_xid(xid);
+ return rc;
+}
+
const struct file_operations cifs_file_ops = {
.read_iter = cifs_loose_read_iter,
.write_iter = cifs_file_write_iter,
@@ -926,6 +995,7 @@ const struct file_operations cifs_file_ops = {
.splice_read = generic_file_splice_read,
.llseek = cifs_llseek,
.unlocked_ioctl = cifs_ioctl,
+ .clone_file_range = cifs_clone_file_range,
.setlease = cifs_setlease,
.fallocate = cifs_fallocate,
};
@@ -942,6 +1012,8 @@ const struct file_operations cifs_file_strict_ops = {
.splice_read = generic_file_splice_read,
.llseek = cifs_llseek,
.unlocked_ioctl = cifs_ioctl,
+ .clone_file_range = cifs_clone_file_range,
+ .clone_file_range = cifs_clone_file_range,
.setlease = cifs_setlease,
.fallocate = cifs_fallocate,
};
@@ -958,6 +1030,7 @@ const struct file_operations cifs_file_direct_ops = {
.mmap = cifs_file_mmap,
.splice_read = generic_file_splice_read,
.unlocked_ioctl = cifs_ioctl,
+ .clone_file_range = cifs_clone_file_range,
.llseek = cifs_llseek,
.setlease = cifs_setlease,
.fallocate = cifs_fallocate,
@@ -974,6 +1047,7 @@ const struct file_operations cifs_file_nobrl_ops = {
.splice_read = generic_file_splice_read,
.llseek = cifs_llseek,
.unlocked_ioctl = cifs_ioctl,
+ .clone_file_range = cifs_clone_file_range,
.setlease = cifs_setlease,
.fallocate = cifs_fallocate,
};
@@ -989,6 +1063,7 @@ const struct file_operations cifs_file_strict_nobrl_ops = {
.splice_read = generic_file_splice_read,
.llseek = cifs_llseek,
.unlocked_ioctl = cifs_ioctl,
+ .clone_file_range = cifs_clone_file_range,
.setlease = cifs_setlease,
.fallocate = cifs_fallocate,
};
@@ -1004,6 +1079,7 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
.mmap = cifs_file_mmap,
.splice_read = generic_file_splice_read,
.unlocked_ioctl = cifs_ioctl,
+ .clone_file_range = cifs_clone_file_range,
.llseek = cifs_llseek,
.setlease = cifs_setlease,
.fallocate = cifs_fallocate,
@@ -1014,6 +1090,7 @@ const struct file_operations cifs_dir_ops = {
.release = cifs_closedir,
.read = generic_read_dir,
.unlocked_ioctl = cifs_ioctl,
+ .clone_file_range = cifs_clone_file_range,
.llseek = generic_file_llseek,
};
@@ -1032,7 +1109,7 @@ cifs_init_inodecache(void)
cifs_inode_cachep = kmem_cache_create("cifs_inode_cache",
sizeof(struct cifsInodeInfo),
0, (SLAB_RECLAIM_ACCOUNT|
- SLAB_MEM_SPREAD),
+ SLAB_MEM_SPREAD|SLAB_ACCOUNT),
cifs_init_once);
if (cifs_inode_cachep == NULL)
return -ENOMEM;
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index c3cc1609025f..68c4547528c4 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -120,9 +120,8 @@ extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
#endif
/* Functions related to symlinks */
-extern const char *cifs_follow_link(struct dentry *direntry, void **cookie);
-extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
- int buflen);
+extern const char *cifs_get_link(struct dentry *, struct inode *,
+ struct delayed_call *);
extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
const char *symname);
extern int cifs_removexattr(struct dentry *, const char *);
@@ -131,7 +130,6 @@ extern int cifs_setxattr(struct dentry *, const char *, const void *,
extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
-
#ifdef CONFIG_CIFS_NFSD_EXPORT
extern const struct export_operations cifs_export_ops;
#endif /* CONFIG_CIFS_NFSD_EXPORT */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 2b510c537a0d..a25b2513f146 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -70,8 +70,10 @@
#define SERVER_NAME_LENGTH 40
#define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1)
-/* SMB echo "timeout" -- FIXME: tunable? */
-#define SMB_ECHO_INTERVAL (60 * HZ)
+/* echo interval in seconds */
+#define SMB_ECHO_INTERVAL_MIN 1
+#define SMB_ECHO_INTERVAL_MAX 600
+#define SMB_ECHO_INTERVAL_DEFAULT 60
#include "cifspdu.h"
@@ -225,7 +227,7 @@ struct smb_version_operations {
void (*print_stats)(struct seq_file *m, struct cifs_tcon *);
void (*dump_share_caps)(struct seq_file *, struct cifs_tcon *);
/* verify the message */
- int (*check_message)(char *, unsigned int);
+ int (*check_message)(char *, unsigned int, struct TCP_Server_Info *);
bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
void (*downgrade_oplock)(struct TCP_Server_Info *,
struct cifsInodeInfo *, bool);
@@ -507,6 +509,7 @@ struct smb_vol {
struct sockaddr_storage dstaddr; /* destination address */
struct sockaddr_storage srcaddr; /* allow binding to a local IP */
struct nls_table *local_nls;
+ unsigned int echo_interval; /* echo interval in secs */
};
#define CIFS_MOUNT_MASK (CIFS_MOUNT_NO_PERM | CIFS_MOUNT_SET_UID | \
@@ -627,7 +630,9 @@ struct TCP_Server_Info {
#ifdef CONFIG_CIFS_SMB2
unsigned int max_read;
unsigned int max_write;
+ __u8 preauth_hash[512];
#endif /* CONFIG_CIFS_SMB2 */
+ unsigned long echo_interval;
};
static inline unsigned int
@@ -809,7 +814,10 @@ struct cifs_ses {
bool need_reconnect:1; /* connection reset, uid now invalid */
#ifdef CONFIG_CIFS_SMB2
__u16 session_flags;
- char smb3signingkey[SMB3_SIGN_KEY_SIZE]; /* for signing smb3 packets */
+ __u8 smb3signingkey[SMB3_SIGN_KEY_SIZE];
+ __u8 smb3encryptionkey[SMB3_SIGN_KEY_SIZE];
+ __u8 smb3decryptionkey[SMB3_SIGN_KEY_SIZE];
+ __u8 preauth_hash[512];
#endif /* CONFIG_CIFS_SMB2 */
};
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index c63fd1dde25b..eed7ff50faf0 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -102,7 +102,7 @@ extern int SendReceiveBlockingLock(const unsigned int xid,
struct smb_hdr *out_buf,
int *bytes_returned);
extern int cifs_reconnect(struct TCP_Server_Info *server);
-extern int checkSMB(char *buf, unsigned int length);
+extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
extern bool backup_cred(struct cifs_sb_info *);
extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
@@ -439,7 +439,8 @@ extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
extern int calc_seckey(struct cifs_ses *);
-extern int generate_smb3signingkey(struct cifs_ses *);
+extern int generate_smb30signingkey(struct cifs_ses *);
+extern int generate_smb311signingkey(struct cifs_ses *);
#ifdef CONFIG_CIFS_WEAK_PW_HASH
extern int calc_lanman_hash(const char *password, const char *cryptkey,
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index ecb0803bdb0e..4fbd92d2e113 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -95,6 +95,7 @@ enum {
Opt_cruid, Opt_gid, Opt_file_mode,
Opt_dirmode, Opt_port,
Opt_rsize, Opt_wsize, Opt_actimeo,
+ Opt_echo_interval,
/* Mount options which take string value */
Opt_user, Opt_pass, Opt_ip,
@@ -188,6 +189,7 @@ static const match_table_t cifs_mount_option_tokens = {
{ Opt_rsize, "rsize=%s" },
{ Opt_wsize, "wsize=%s" },
{ Opt_actimeo, "actimeo=%s" },
+ { Opt_echo_interval, "echo_interval=%s" },
{ Opt_blank_user, "user=" },
{ Opt_blank_user, "username=" },
@@ -368,7 +370,6 @@ cifs_reconnect(struct TCP_Server_Info *server)
server->session_key.response = NULL;
server->session_key.len = 0;
server->lstrp = jiffies;
- mutex_unlock(&server->srv_mutex);
/* mark submitted MIDs for retry and issue callback */
INIT_LIST_HEAD(&retry_list);
@@ -381,6 +382,7 @@ cifs_reconnect(struct TCP_Server_Info *server)
list_move(&mid_entry->qhead, &retry_list);
}
spin_unlock(&GlobalMid_Lock);
+ mutex_unlock(&server->srv_mutex);
cifs_dbg(FYI, "%s: issuing mid callbacks\n", __func__);
list_for_each_safe(tmp, tmp2, &retry_list) {
@@ -418,6 +420,7 @@ cifs_echo_request(struct work_struct *work)
int rc;
struct TCP_Server_Info *server = container_of(work,
struct TCP_Server_Info, echo.work);
+ unsigned long echo_interval = server->echo_interval;
/*
* We cannot send an echo if it is disabled or until the
@@ -427,7 +430,7 @@ cifs_echo_request(struct work_struct *work)
*/
if (!server->ops->need_neg || server->ops->need_neg(server) ||
(server->ops->can_echo && !server->ops->can_echo(server)) ||
- time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ))
+ time_before(jiffies, server->lstrp + echo_interval - HZ))
goto requeue_echo;
rc = server->ops->echo ? server->ops->echo(server) : -ENOSYS;
@@ -436,7 +439,7 @@ cifs_echo_request(struct work_struct *work)
server->hostname);
requeue_echo:
- queue_delayed_work(cifsiod_wq, &server->echo, SMB_ECHO_INTERVAL);
+ queue_delayed_work(cifsiod_wq, &server->echo, echo_interval);
}
static bool
@@ -487,9 +490,9 @@ server_unresponsive(struct TCP_Server_Info *server)
* a response in >60s.
*/
if (server->tcpStatus == CifsGood &&
- time_after(jiffies, server->lstrp + 2 * SMB_ECHO_INTERVAL)) {
- cifs_dbg(VFS, "Server %s has not responded in %d seconds. Reconnecting...\n",
- server->hostname, (2 * SMB_ECHO_INTERVAL) / HZ);
+ time_after(jiffies, server->lstrp + 2 * server->echo_interval)) {
+ cifs_dbg(VFS, "Server %s has not responded in %lu seconds. Reconnecting...\n",
+ server->hostname, (2 * server->echo_interval) / HZ);
cifs_reconnect(server);
wake_up(&server->response_q);
return true;
@@ -828,7 +831,7 @@ standard_receive3(struct TCP_Server_Info *server, struct mid_q_entry *mid)
* 48 bytes is enough to display the header and a little bit
* into the payload for debugging purposes.
*/
- length = server->ops->check_message(buf, server->total_read);
+ length = server->ops->check_message(buf, server->total_read, server);
if (length != 0)
cifs_dump_mem("Bad SMB: ", buf,
min_t(unsigned int, server->total_read, 48));
@@ -1624,6 +1627,14 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
goto cifs_parse_mount_err;
}
break;
+ case Opt_echo_interval:
+ if (get_option_ul(args, &option)) {
+ cifs_dbg(VFS, "%s: Invalid echo interval value\n",
+ __func__);
+ goto cifs_parse_mount_err;
+ }
+ vol->echo_interval = option;
+ break;
/* String Arguments */
@@ -2089,6 +2100,9 @@ static int match_server(struct TCP_Server_Info *server, struct smb_vol *vol)
if (!match_security(server, vol))
return 0;
+ if (server->echo_interval != vol->echo_interval)
+ return 0;
+
return 1;
}
@@ -2208,6 +2222,12 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
tcp_ses->tcpStatus = CifsNew;
++tcp_ses->srv_count;
+ if (volume_info->echo_interval >= SMB_ECHO_INTERVAL_MIN &&
+ volume_info->echo_interval <= SMB_ECHO_INTERVAL_MAX)
+ tcp_ses->echo_interval = volume_info->echo_interval * HZ;
+ else
+ tcp_ses->echo_interval = SMB_ECHO_INTERVAL_DEFAULT * HZ;
+
rc = ip_connect(tcp_ses);
if (rc < 0) {
cifs_dbg(VFS, "Error connecting to socket. Aborting operation.\n");
@@ -2237,7 +2257,7 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
cifs_fscache_get_client_cookie(tcp_ses);
/* queue echo request delayed work */
- queue_delayed_work(cifsiod_wq, &tcp_ses->echo, SMB_ECHO_INTERVAL);
+ queue_delayed_work(cifsiod_wq, &tcp_ses->echo, tcp_ses->echo_interval);
return tcp_ses;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 0068e82217c3..ff882aeaccc6 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2267,7 +2267,7 @@ int cifs_strict_fsync(struct file *file, loff_t start, loff_t end,
rc = filemap_write_and_wait_range(inode->i_mapping, start, end);
if (rc)
return rc;
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
xid = get_xid();
@@ -2292,7 +2292,7 @@ int cifs_strict_fsync(struct file *file, loff_t start, loff_t end,
}
free_xid(xid);
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
return rc;
}
@@ -2309,7 +2309,7 @@ int cifs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
rc = filemap_write_and_wait_range(inode->i_mapping, start, end);
if (rc)
return rc;
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
xid = get_xid();
@@ -2326,7 +2326,7 @@ int cifs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
}
free_xid(xid);
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
return rc;
}
@@ -2672,7 +2672,7 @@ cifs_writev(struct kiocb *iocb, struct iov_iter *from)
* with a brlock that prevents writing.
*/
down_read(&cinode->lock_sem);
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
rc = generic_write_checks(iocb, from);
if (rc <= 0)
@@ -2685,7 +2685,7 @@ cifs_writev(struct kiocb *iocb, struct iov_iter *from)
else
rc = -EACCES;
out:
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
if (rc > 0) {
ssize_t err = generic_write_sync(file, iocb->ki_pos - rc, rc);
@@ -3391,13 +3391,13 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list,
* should have access to this page, we're safe to simply set
* PG_locked without checking it first.
*/
- __set_page_locked(page);
+ __SetPageLocked(page);
rc = add_to_page_cache_locked(page, mapping,
page->index, gfp);
/* give up if we can't stick it in the cache */
if (rc) {
- __clear_page_locked(page);
+ __ClearPageLocked(page);
return rc;
}
@@ -3418,9 +3418,9 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list,
if (*bytes + PAGE_CACHE_SIZE > rsize)
break;
- __set_page_locked(page);
+ __SetPageLocked(page);
if (add_to_page_cache_locked(page, mapping, page->index, gfp)) {
- __clear_page_locked(page);
+ __ClearPageLocked(page);
break;
}
list_move_tail(&page->lru, tmplist);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index a329f5ba35aa..aeb26dbfa1bf 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -814,8 +814,21 @@ cifs_get_inode_info(struct inode **inode, const char *full_path,
}
} else
fattr.cf_uniqueid = iunique(sb, ROOT_I);
- } else
- fattr.cf_uniqueid = CIFS_I(*inode)->uniqueid;
+ } else {
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) &&
+ validinum == false && server->ops->get_srv_inum) {
+ /*
+ * Pass a NULL tcon to ensure we don't make a round
+ * trip to the server. This only works for SMB2+.
+ */
+ tmprc = server->ops->get_srv_inum(xid,
+ NULL, cifs_sb, full_path,
+ &fattr.cf_uniqueid, data);
+ if (tmprc)
+ fattr.cf_uniqueid = CIFS_I(*inode)->uniqueid;
+ } else
+ fattr.cf_uniqueid = CIFS_I(*inode)->uniqueid;
+ }
/* query for SFU type info if supported and needed */
if (fattr.cf_cifsattrs & ATTR_SYSTEM &&
@@ -856,6 +869,13 @@ cifs_get_inode_info(struct inode **inode, const char *full_path,
} else {
/* we already have inode, update it */
+ /* if uniqueid is different, return error */
+ if (unlikely(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM &&
+ CIFS_I(*inode)->uniqueid != fattr.cf_uniqueid)) {
+ rc = -ESTALE;
+ goto cgii_exit;
+ }
+
/* if filetype is different, return error */
if (unlikely(((*inode)->i_mode & S_IFMT) !=
(fattr.cf_mode & S_IFMT))) {
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 35cf990f87d3..7a3b84e300f8 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -34,73 +34,36 @@
#include "cifs_ioctl.h"
#include <linux/btrfs.h>
-static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
- unsigned long srcfd, u64 off, u64 len, u64 destoff,
- bool dup_extents)
+static int cifs_file_clone_range(unsigned int xid, struct file *src_file,
+ struct file *dst_file)
{
- int rc;
- struct cifsFileInfo *smb_file_target = dst_file->private_data;
+ struct inode *src_inode = file_inode(src_file);
struct inode *target_inode = file_inode(dst_file);
- struct cifs_tcon *target_tcon;
- struct fd src_file;
struct cifsFileInfo *smb_file_src;
- struct inode *src_inode;
+ struct cifsFileInfo *smb_file_target;
struct cifs_tcon *src_tcon;
+ struct cifs_tcon *target_tcon;
+ int rc;
cifs_dbg(FYI, "ioctl clone range\n");
- /* the destination must be opened for writing */
- if (!(dst_file->f_mode & FMODE_WRITE)) {
- cifs_dbg(FYI, "file target not open for write\n");
- return -EINVAL;
- }
- /* check if target volume is readonly and take reference */
- rc = mnt_want_write_file(dst_file);
- if (rc) {
- cifs_dbg(FYI, "mnt_want_write failed with rc %d\n", rc);
- return rc;
- }
-
- src_file = fdget(srcfd);
- if (!src_file.file) {
- rc = -EBADF;
- goto out_drop_write;
- }
-
- if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) {
- rc = -EBADF;
- cifs_dbg(VFS, "src file seems to be from a different filesystem type\n");
- goto out_fput;
- }
-
- if ((!src_file.file->private_data) || (!dst_file->private_data)) {
+ if (!src_file->private_data || !dst_file->private_data) {
rc = -EBADF;
cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");
- goto out_fput;
+ goto out;
}
rc = -EXDEV;
smb_file_target = dst_file->private_data;
- smb_file_src = src_file.file->private_data;
+ smb_file_src = src_file->private_data;
src_tcon = tlink_tcon(smb_file_src->tlink);
target_tcon = tlink_tcon(smb_file_target->tlink);
- /* check source and target on same server (or volume if dup_extents) */
- if (dup_extents && (src_tcon != target_tcon)) {
- cifs_dbg(VFS, "source and target of copy not on same share\n");
- goto out_fput;
- }
-
- if (!dup_extents && (src_tcon->ses != target_tcon->ses)) {
+ if (src_tcon->ses != target_tcon->ses) {
cifs_dbg(VFS, "source and target of copy not on same server\n");
- goto out_fput;
+ goto out;
}
- src_inode = file_inode(src_file.file);
- rc = -EINVAL;
- if (S_ISDIR(src_inode->i_mode))
- goto out_fput;
-
/*
* Note: cifs case is easier than btrfs since server responsible for
* checks for proper open modes and file type and if it wants
@@ -108,34 +71,66 @@ static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
*/
lock_two_nondirectories(target_inode, src_inode);
- /* determine range to clone */
- rc = -EINVAL;
- if (off + len > src_inode->i_size || off + len < off)
- goto out_unlock;
- if (len == 0)
- len = src_inode->i_size - off;
-
cifs_dbg(FYI, "about to flush pages\n");
/* should we flush first and last page first */
- truncate_inode_pages_range(&target_inode->i_data, destoff,
- PAGE_CACHE_ALIGN(destoff + len)-1);
+ truncate_inode_pages(&target_inode->i_data, 0);
- if (dup_extents && target_tcon->ses->server->ops->duplicate_extents)
- rc = target_tcon->ses->server->ops->duplicate_extents(xid,
- smb_file_src, smb_file_target, off, len, destoff);
- else if (!dup_extents && target_tcon->ses->server->ops->clone_range)
+ if (target_tcon->ses->server->ops->clone_range)
rc = target_tcon->ses->server->ops->clone_range(xid,
- smb_file_src, smb_file_target, off, len, destoff);
+ smb_file_src, smb_file_target, 0, src_inode->i_size, 0);
else
rc = -EOPNOTSUPP;
/* force revalidate of size and timestamps of target file now
that target is updated on the server */
CIFS_I(target_inode)->time = 0;
-out_unlock:
/* although unlocking in the reverse order from locking is not
strictly necessary here it is a little cleaner to be consistent */
unlock_two_nondirectories(src_inode, target_inode);
+out:
+ return rc;
+}
+
+static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
+ unsigned long srcfd)
+{
+ int rc;
+ struct fd src_file;
+ struct inode *src_inode;
+
+ cifs_dbg(FYI, "ioctl clone range\n");
+ /* the destination must be opened for writing */
+ if (!(dst_file->f_mode & FMODE_WRITE)) {
+ cifs_dbg(FYI, "file target not open for write\n");
+ return -EINVAL;
+ }
+
+ /* check if target volume is readonly and take reference */
+ rc = mnt_want_write_file(dst_file);
+ if (rc) {
+ cifs_dbg(FYI, "mnt_want_write failed with rc %d\n", rc);
+ return rc;
+ }
+
+ src_file = fdget(srcfd);
+ if (!src_file.file) {
+ rc = -EBADF;
+ goto out_drop_write;
+ }
+
+ if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) {
+ rc = -EBADF;
+ cifs_dbg(VFS, "src file seems to be from a different filesystem type\n");
+ goto out_fput;
+ }
+
+ src_inode = file_inode(src_file.file);
+ rc = -EINVAL;
+ if (S_ISDIR(src_inode->i_mode))
+ goto out_fput;
+
+ rc = cifs_file_clone_range(xid, src_file.file, dst_file);
+
out_fput:
fdput(src_file);
out_drop_write:
@@ -256,10 +251,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
}
break;
case CIFS_IOC_COPYCHUNK_FILE:
- rc = cifs_ioctl_clone(xid, filep, arg, 0, 0, 0, false);
- break;
- case BTRFS_IOC_CLONE:
- rc = cifs_ioctl_clone(xid, filep, arg, 0, 0, 0, true);
+ rc = cifs_ioctl_clone(xid, filep, arg);
break;
case CIFS_IOC_SET_INTEGRITY:
if (pSMBFile == NULL)
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index e3548f73bdea..062c2375549a 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -627,9 +627,9 @@ cifs_hl_exit:
}
const char *
-cifs_follow_link(struct dentry *direntry, void **cookie)
+cifs_get_link(struct dentry *direntry, struct inode *inode,
+ struct delayed_call *done)
{
- struct inode *inode = d_inode(direntry);
int rc = -ENOMEM;
unsigned int xid;
char *full_path = NULL;
@@ -639,6 +639,9 @@ cifs_follow_link(struct dentry *direntry, void **cookie)
struct cifs_tcon *tcon;
struct TCP_Server_Info *server;
+ if (!direntry)
+ return ERR_PTR(-ECHILD);
+
xid = get_xid();
tlink = cifs_sb_tlink(cifs_sb);
@@ -678,7 +681,8 @@ cifs_follow_link(struct dentry *direntry, void **cookie)
kfree(target_path);
return ERR_PTR(rc);
}
- return *cookie = target_path;
+ set_delayed_call(done, kfree_link, target_path);
+ return target_path;
}
int
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 8442b8b8e0be..813fe13c2ae1 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -310,7 +310,7 @@ check_smb_hdr(struct smb_hdr *smb)
}
int
-checkSMB(char *buf, unsigned int total_read)
+checkSMB(char *buf, unsigned int total_read, struct TCP_Server_Info *server)
{
struct smb_hdr *smb = (struct smb_hdr *)buf;
__u32 rfclen = be32_to_cpu(smb->smb_buf_length);
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 0557c45e9c33..b30a4a6d98a0 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -847,6 +847,7 @@ int cifs_readdir(struct file *file, struct dir_context *ctx)
* if buggy server returns . and .. late do we want to
* check for that here?
*/
+ *tmp_buf = 0;
rc = cifs_filldir(current_entry, file, ctx,
tmp_buf, max_len);
if (rc) {
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 1c5907019045..389fb9f8c84e 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -38,7 +38,7 @@ check_smb2_hdr(struct smb2_hdr *hdr, __u64 mid)
* Make sure that this really is an SMB, that it is a response,
* and that the message ids match.
*/
- if ((*(__le32 *)hdr->ProtocolId == SMB2_PROTO_NUMBER) &&
+ if ((hdr->ProtocolId == SMB2_PROTO_NUMBER) &&
(mid == wire_mid)) {
if (hdr->Flags & SMB2_FLAGS_SERVER_TO_REDIR)
return 0;
@@ -50,9 +50,9 @@ check_smb2_hdr(struct smb2_hdr *hdr, __u64 mid)
cifs_dbg(VFS, "Received Request not response\n");
}
} else { /* bad signature or mid */
- if (*(__le32 *)hdr->ProtocolId != SMB2_PROTO_NUMBER)
+ if (hdr->ProtocolId != SMB2_PROTO_NUMBER)
cifs_dbg(VFS, "Bad protocol string signature header %x\n",
- *(unsigned int *) hdr->ProtocolId);
+ le32_to_cpu(hdr->ProtocolId));
if (mid != wire_mid)
cifs_dbg(VFS, "Mids do not match: %llu and %llu\n",
mid, wire_mid);
@@ -93,11 +93,11 @@ static const __le16 smb2_rsp_struct_sizes[NUMBER_OF_SMB2_COMMANDS] = {
};
int
-smb2_check_message(char *buf, unsigned int length)
+smb2_check_message(char *buf, unsigned int length, struct TCP_Server_Info *srvr)
{
struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
struct smb2_pdu *pdu = (struct smb2_pdu *)hdr;
- __u64 mid = le64_to_cpu(hdr->MessageId);
+ __u64 mid;
__u32 len = get_rfc1002_length(buf);
__u32 clc_len; /* calculated length */
int command;
@@ -111,6 +111,30 @@ smb2_check_message(char *buf, unsigned int length)
* ie Validate the wct via smb2_struct_sizes table above
*/
+ if (hdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) {
+ struct smb2_transform_hdr *thdr =
+ (struct smb2_transform_hdr *)buf;
+ struct cifs_ses *ses = NULL;
+ struct list_head *tmp;
+
+ /* decrypt frame now that it is completely read in */
+ spin_lock(&cifs_tcp_ses_lock);
+ list_for_each(tmp, &srvr->smb_ses_list) {
+ ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
+ if (ses->Suid == thdr->SessionId)
+ break;
+
+ ses = NULL;
+ }
+ spin_unlock(&cifs_tcp_ses_lock);
+ if (ses == NULL) {
+ cifs_dbg(VFS, "no decryption - session id not found\n");
+ return 1;
+ }
+ }
+
+
+ mid = le64_to_cpu(hdr->MessageId);
if (length < sizeof(struct smb2_pdu)) {
if ((length >= sizeof(struct smb2_hdr)) && (hdr->Status != 0)) {
pdu->StructureSize2 = 0;
@@ -322,7 +346,7 @@ 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 (char *)(&hdr->ProtocolId[0]) + *off;
+ return (char *)(&hdr->ProtocolId) + *off;
else
return NULL;
}
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 53ccdde6ff18..3525ed756173 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -182,6 +182,11 @@ smb2_find_mid(struct TCP_Server_Info *server, char *buf)
struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
__u64 wire_mid = le64_to_cpu(hdr->MessageId);
+ if (hdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) {
+ cifs_dbg(VFS, "encrypted frame parsing not supported yet");
+ return NULL;
+ }
+
spin_lock(&GlobalMid_Lock);
list_for_each_entry(mid, &server->pending_mid_q, qhead) {
if ((mid->mid == wire_mid) &&
@@ -1692,7 +1697,7 @@ struct smb_version_operations smb30_operations = {
.get_lease_key = smb2_get_lease_key,
.set_lease_key = smb2_set_lease_key,
.new_lease_key = smb2_new_lease_key,
- .generate_signingkey = generate_smb3signingkey,
+ .generate_signingkey = generate_smb30signingkey,
.calc_signature = smb3_calc_signature,
.set_integrity = smb3_set_integrity,
.is_read_op = smb21_is_read_op,
@@ -1779,7 +1784,7 @@ struct smb_version_operations smb311_operations = {
.get_lease_key = smb2_get_lease_key,
.set_lease_key = smb2_set_lease_key,
.new_lease_key = smb2_new_lease_key,
- .generate_signingkey = generate_smb3signingkey,
+ .generate_signingkey = generate_smb311signingkey,
.calc_signature = smb3_calc_signature,
.set_integrity = smb3_set_integrity,
.is_read_op = smb21_is_read_op,
@@ -1838,7 +1843,7 @@ struct smb_version_values smb21_values = {
struct smb_version_values smb30_values = {
.version_string = SMB30_VERSION_STRING,
.protocol_id = SMB30_PROT_ID,
- .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES,
+ .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
.large_lock_type = 0,
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
@@ -1858,7 +1863,7 @@ struct smb_version_values smb30_values = {
struct smb_version_values smb302_values = {
.version_string = SMB302_VERSION_STRING,
.protocol_id = SMB302_PROT_ID,
- .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES,
+ .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
.large_lock_type = 0,
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 767555518d40..10f8d5cf5681 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -97,10 +97,7 @@ smb2_hdr_assemble(struct smb2_hdr *hdr, __le16 smb2_cmd /* command */ ,
hdr->smb2_buf_length = cpu_to_be32(parmsize + sizeof(struct smb2_hdr)
- 4 /* RFC 1001 length field itself not counted */);
- hdr->ProtocolId[0] = 0xFE;
- hdr->ProtocolId[1] = 'S';
- hdr->ProtocolId[2] = 'M';
- hdr->ProtocolId[3] = 'B';
+ hdr->ProtocolId = SMB2_PROTO_NUMBER;
hdr->StructureSize = cpu_to_le16(64);
hdr->Command = smb2_cmd;
hdr->CreditRequest = cpu_to_le16(2); /* BB make this dynamic */
@@ -1573,7 +1570,8 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
goto ioctl_exit;
}
- memcpy(*out_data, rsp->hdr.ProtocolId + le32_to_cpu(rsp->OutputOffset),
+ memcpy(*out_data,
+ (char *)&rsp->hdr.ProtocolId + le32_to_cpu(rsp->OutputOffset),
*plen);
ioctl_exit:
free_rsp_buf(resp_buftype, rsp);
@@ -2093,7 +2091,7 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
}
if (*buf) {
- memcpy(*buf, (char *)rsp->hdr.ProtocolId + rsp->DataOffset,
+ memcpy(*buf, (char *)&rsp->hdr.ProtocolId + rsp->DataOffset,
*nbytes);
free_rsp_buf(resp_buftype, iov[0].iov_base);
} else if (resp_buftype != CIFS_NO_BUFFER) {
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 4af52780ec35..ff88d9feb01e 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -86,6 +86,7 @@
#define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */
#define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
+#define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
/*
* SMB2 Header Definition
@@ -102,7 +103,7 @@ struct smb2_hdr {
__be32 smb2_buf_length; /* big endian on wire */
/* length is only two or three bytes - with
one or two byte type preceding it that MBZ */
- __u8 ProtocolId[4]; /* 0xFE 'S' 'M' 'B' */
+ __le32 ProtocolId; /* 0xFE 'S' 'M' 'B' */
__le16 StructureSize; /* 64 */
__le16 CreditCharge; /* MBZ */
__le32 Status; /* Error from server */
@@ -128,11 +129,10 @@ struct smb2_transform_hdr {
one or two byte type preceding it that MBZ */
__u8 ProtocolId[4]; /* 0xFD 'S' 'M' 'B' */
__u8 Signature[16];
- __u8 Nonce[11];
- __u8 Reserved[5];
+ __u8 Nonce[16];
__le32 OriginalMessageSize;
__u16 Reserved1;
- __le16 EncryptionAlgorithm;
+ __le16 Flags; /* EncryptionAlgorithm */
__u64 SessionId;
} __packed;
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 79dc650c18b2..4f07dc93608d 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -34,7 +34,8 @@ struct smb_rqst;
*****************************************************************
*/
extern int map_smb2_to_linux_error(char *buf, bool log_err);
-extern int smb2_check_message(char *buf, unsigned int length);
+extern int smb2_check_message(char *buf, unsigned int length,
+ struct TCP_Server_Info *server);
extern unsigned int smb2_calc_size(void *buf);
extern char *smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr);
extern __le16 *cifs_convert_path_to_utf16(const char *from,
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index d4c5b6f109a7..8732a43b1008 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -222,8 +222,8 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
return rc;
}
-int
-generate_smb3signingkey(struct cifs_ses *ses)
+static int generate_key(struct cifs_ses *ses, struct kvec label,
+ struct kvec context, __u8 *key, unsigned int key_size)
{
unsigned char zero = 0x0;
__u8 i[4] = {0, 0, 0, 1};
@@ -233,7 +233,7 @@ generate_smb3signingkey(struct cifs_ses *ses)
unsigned char *hashptr = prfhash;
memset(prfhash, 0x0, SMB2_HMACSHA256_SIZE);
- memset(ses->smb3signingkey, 0x0, SMB3_SIGNKEY_SIZE);
+ memset(key, 0x0, key_size);
rc = smb3_crypto_shash_allocate(ses->server);
if (rc) {
@@ -262,7 +262,7 @@ generate_smb3signingkey(struct cifs_ses *ses)
}
rc = crypto_shash_update(&ses->server->secmech.sdeschmacsha256->shash,
- "SMB2AESCMAC", 12);
+ label.iov_base, label.iov_len);
if (rc) {
cifs_dbg(VFS, "%s: Could not update with label\n", __func__);
goto smb3signkey_ret;
@@ -276,7 +276,7 @@ generate_smb3signingkey(struct cifs_ses *ses)
}
rc = crypto_shash_update(&ses->server->secmech.sdeschmacsha256->shash,
- "SmbSign", 8);
+ context.iov_base, context.iov_len);
if (rc) {
cifs_dbg(VFS, "%s: Could not update with context\n", __func__);
goto smb3signkey_ret;
@@ -296,12 +296,102 @@ generate_smb3signingkey(struct cifs_ses *ses)
goto smb3signkey_ret;
}
- memcpy(ses->smb3signingkey, hashptr, SMB3_SIGNKEY_SIZE);
+ memcpy(key, hashptr, key_size);
smb3signkey_ret:
return rc;
}
+struct derivation {
+ struct kvec label;
+ struct kvec context;
+};
+
+struct derivation_triplet {
+ struct derivation signing;
+ struct derivation encryption;
+ struct derivation decryption;
+};
+
+static int
+generate_smb3signingkey(struct cifs_ses *ses,
+ const struct derivation_triplet *ptriplet)
+{
+ int rc;
+
+ rc = generate_key(ses, ptriplet->signing.label,
+ ptriplet->signing.context, ses->smb3signingkey,
+ SMB3_SIGN_KEY_SIZE);
+ if (rc)
+ return rc;
+
+ rc = generate_key(ses, ptriplet->encryption.label,
+ ptriplet->encryption.context, ses->smb3encryptionkey,
+ SMB3_SIGN_KEY_SIZE);
+ if (rc)
+ return rc;
+
+ return generate_key(ses, ptriplet->decryption.label,
+ ptriplet->decryption.context,
+ ses->smb3decryptionkey, SMB3_SIGN_KEY_SIZE);
+}
+
+int
+generate_smb30signingkey(struct cifs_ses *ses)
+
+{
+ struct derivation_triplet triplet;
+ struct derivation *d;
+
+ d = &triplet.signing;
+ d->label.iov_base = "SMB2AESCMAC";
+ d->label.iov_len = 12;
+ d->context.iov_base = "SmbSign";
+ d->context.iov_len = 8;
+
+ d = &triplet.encryption;
+ d->label.iov_base = "SMB2AESCCM";
+ d->label.iov_len = 11;
+ d->context.iov_base = "ServerIn ";
+ d->context.iov_len = 10;
+
+ d = &triplet.decryption;
+ d->label.iov_base = "SMB2AESCCM";
+ d->label.iov_len = 11;
+ d->context.iov_base = "ServerOut";
+ d->context.iov_len = 10;
+
+ return generate_smb3signingkey(ses, &triplet);
+}
+
+int
+generate_smb311signingkey(struct cifs_ses *ses)
+
+{
+ struct derivation_triplet triplet;
+ struct derivation *d;
+
+ d = &triplet.signing;
+ d->label.iov_base = "SMB2AESCMAC";
+ d->label.iov_len = 12;
+ d->context.iov_base = "SmbSign";
+ d->context.iov_len = 8;
+
+ d = &triplet.encryption;
+ d->label.iov_base = "SMB2AESCCM";
+ d->label.iov_len = 11;
+ d->context.iov_base = "ServerIn ";
+ d->context.iov_len = 10;
+
+ d = &triplet.decryption;
+ d->label.iov_base = "SMB2AESCCM";
+ d->label.iov_len = 11;
+ d->context.iov_base = "ServerOut";
+ d->context.iov_len = 10;
+
+ return generate_smb3signingkey(ses, &triplet);
+}
+
int
smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
{
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 2a24c524fb9a..87abe8ed074c 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -576,14 +576,16 @@ cifs_call_async(struct TCP_Server_Info *server, struct smb_rqst *rqst,
cifs_in_send_dec(server);
cifs_save_when_sent(mid);
- if (rc < 0)
+ if (rc < 0) {
server->sequence_number -= 2;
+ cifs_delete_mid(mid);
+ }
+
mutex_unlock(&server->srv_mutex);
if (rc == 0)
return 0;
- cifs_delete_mid(mid);
add_credits_and_wake_if(server, credits, optype);
return rc;
}
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index ff9e1f8b16a4..f5dc2f0df4ad 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -190,8 +190,8 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
#endif /* CONFIG_CIFS_ACL */
} else {
int temp;
- temp = strncmp(ea_name, POSIX_ACL_XATTR_ACCESS,
- strlen(POSIX_ACL_XATTR_ACCESS));
+ temp = strncmp(ea_name, XATTR_NAME_POSIX_ACL_ACCESS,
+ strlen(XATTR_NAME_POSIX_ACL_ACCESS));
if (temp == 0) {
#ifdef CONFIG_CIFS_POSIX
if (sb->s_flags & MS_POSIXACL)
@@ -203,8 +203,8 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
#else
cifs_dbg(FYI, "set POSIX ACL not supported\n");
#endif
- } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT,
- strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) {
+ } else if (strncmp(ea_name, XATTR_NAME_POSIX_ACL_DEFAULT,
+ strlen(XATTR_NAME_POSIX_ACL_DEFAULT)) == 0) {
#ifdef CONFIG_CIFS_POSIX
if (sb->s_flags & MS_POSIXACL)
rc = CIFSSMBSetPosixACL(xid, pTcon, full_path,
@@ -292,8 +292,8 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
full_path, ea_name, ea_value, buf_size,
cifs_sb->local_nls, cifs_remap(cifs_sb));
- } else if (strncmp(ea_name, POSIX_ACL_XATTR_ACCESS,
- strlen(POSIX_ACL_XATTR_ACCESS)) == 0) {
+ } else if (strncmp(ea_name, XATTR_NAME_POSIX_ACL_ACCESS,
+ strlen(XATTR_NAME_POSIX_ACL_ACCESS)) == 0) {
#ifdef CONFIG_CIFS_POSIX
if (sb->s_flags & MS_POSIXACL)
rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
@@ -303,8 +303,8 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
#else
cifs_dbg(FYI, "Query POSIX ACL not supported yet\n");
#endif /* CONFIG_CIFS_POSIX */
- } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT,
- strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) {
+ } else if (strncmp(ea_name, XATTR_NAME_POSIX_ACL_DEFAULT,
+ strlen(XATTR_NAME_POSIX_ACL_DEFAULT)) == 0) {
#ifdef CONFIG_CIFS_POSIX
if (sb->s_flags & MS_POSIXACL)
rc = CIFSSMBGetPosixACL(xid, pTcon, full_path,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 13:40:05 +0100