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-rw-r--r--fs/smb/client/cached_dir.c22
-rw-r--r--fs/smb/client/cached_dir.h6
-rw-r--r--fs/smb/client/cifs_debug.c55
-rw-r--r--fs/smb/client/cifs_ioctl.h2
-rw-r--r--fs/smb/client/cifsencrypt.c83
-rw-r--r--fs/smb/client/cifsfs.c16
-rw-r--r--fs/smb/client/cifsfs.h4
-rw-r--r--fs/smb/client/cifsglob.h17
-rw-r--r--fs/smb/client/cifsproto.h9
-rw-r--r--fs/smb/client/cifssmb.c162
-rw-r--r--fs/smb/client/connect.c83
-rw-r--r--fs/smb/client/dir.c6
-rw-r--r--fs/smb/client/file.c34
-rw-r--r--fs/smb/client/fs_context.c49
-rw-r--r--fs/smb/client/ioctl.c2
-rw-r--r--fs/smb/client/link.c13
-rw-r--r--fs/smb/client/misc.c6
-rw-r--r--fs/smb/client/readdir.c2
-rw-r--r--fs/smb/client/reparse.c59
-rw-r--r--fs/smb/client/reparse.h4
-rw-r--r--fs/smb/client/sess.c12
-rw-r--r--fs/smb/client/smb1ops.c31
-rw-r--r--fs/smb/client/smb2inode.c12
-rw-r--r--fs/smb/client/smb2ops.c20
-rw-r--r--fs/smb/client/smb2pdu.c37
-rw-r--r--fs/smb/client/smb2proto.h5
-rw-r--r--fs/smb/client/smbdirect.c166
-rw-r--r--fs/smb/client/trace.h24
28 files changed, 605 insertions, 336 deletions
diff --git a/fs/smb/client/cached_dir.c b/fs/smb/client/cached_dir.c
index 5200a0f3cafc..b69daeb1301b 100644
--- a/fs/smb/client/cached_dir.c
+++ b/fs/smb/client/cached_dir.c
@@ -195,6 +195,7 @@ replay_again:
* from @cfids->entries. Caller will put last reference if the latter.
*/
if (cfid->has_lease && cfid->time) {
+ cfid->last_access_time = jiffies;
spin_unlock(&cfids->cfid_list_lock);
*ret_cfid = cfid;
kfree(utf16_path);
@@ -363,6 +364,7 @@ replay_again:
cfid->file_all_info_is_valid = true;
cfid->time = jiffies;
+ cfid->last_access_time = jiffies;
spin_unlock(&cfids->cfid_list_lock);
/* At this point the directory handle is fully cached */
rc = 0;
@@ -509,8 +511,17 @@ void close_all_cached_dirs(struct cifs_sb_info *cifs_sb)
spin_lock(&cfids->cfid_list_lock);
list_for_each_entry(cfid, &cfids->entries, entry) {
tmp_list = kmalloc(sizeof(*tmp_list), GFP_ATOMIC);
- if (tmp_list == NULL)
- break;
+ if (tmp_list == NULL) {
+ /*
+ * If the malloc() fails, we won't drop all
+ * dentries, and unmounting is likely to trigger
+ * a 'Dentry still in use' error.
+ */
+ cifs_tcon_dbg(VFS, "Out of memory while dropping dentries\n");
+ spin_unlock(&cfids->cfid_list_lock);
+ spin_unlock(&cifs_sb->tlink_tree_lock);
+ goto done;
+ }
spin_lock(&cfid->fid_lock);
tmp_list->dentry = cfid->dentry;
cfid->dentry = NULL;
@@ -522,6 +533,7 @@ void close_all_cached_dirs(struct cifs_sb_info *cifs_sb)
}
spin_unlock(&cifs_sb->tlink_tree_lock);
+done:
list_for_each_entry_safe(tmp_list, q, &entry, entry) {
list_del(&tmp_list->entry);
dput(tmp_list->dentry);
@@ -607,7 +619,7 @@ static void cached_dir_put_work(struct work_struct *work)
queue_work(serverclose_wq, &cfid->close_work);
}
-int cached_dir_lease_break(struct cifs_tcon *tcon, __u8 lease_key[16])
+bool cached_dir_lease_break(struct cifs_tcon *tcon, __u8 lease_key[16])
{
struct cached_fids *cfids = tcon->cfids;
struct cached_fid *cfid;
@@ -720,8 +732,8 @@ static void cfids_laundromat_worker(struct work_struct *work)
spin_lock(&cfids->cfid_list_lock);
list_for_each_entry_safe(cfid, q, &cfids->entries, entry) {
- if (cfid->time &&
- time_after(jiffies, cfid->time + HZ * dir_cache_timeout)) {
+ if (cfid->last_access_time &&
+ time_after(jiffies, cfid->last_access_time + HZ * dir_cache_timeout)) {
cfid->on_list = false;
list_move(&cfid->entry, &entry);
cfids->num_entries--;
diff --git a/fs/smb/client/cached_dir.h b/fs/smb/client/cached_dir.h
index bc8a812ff95f..46b5a2fdf15b 100644
--- a/fs/smb/client/cached_dir.h
+++ b/fs/smb/client/cached_dir.h
@@ -14,7 +14,6 @@ struct cached_dirent {
char *name;
int namelen;
loff_t pos;
-
struct cifs_fattr fattr;
};
@@ -26,7 +25,7 @@ struct cached_dirents {
* open file instance.
*/
struct mutex de_mutex;
- int pos; /* Expected ctx->pos */
+ loff_t pos; /* Expected ctx->pos */
struct list_head entries;
};
@@ -39,6 +38,7 @@ struct cached_fid {
bool on_list:1;
bool file_all_info_is_valid:1;
unsigned long time; /* jiffies of when lease was taken */
+ unsigned long last_access_time; /* jiffies of when last accessed */
struct kref refcount;
struct cifs_fid fid;
spinlock_t fid_lock;
@@ -80,6 +80,6 @@ extern void drop_cached_dir_by_name(const unsigned int xid,
struct cifs_sb_info *cifs_sb);
extern void close_all_cached_dirs(struct cifs_sb_info *cifs_sb);
extern void invalidate_all_cached_dirs(struct cifs_tcon *tcon);
-extern int cached_dir_lease_break(struct cifs_tcon *tcon, __u8 lease_key[16]);
+extern bool cached_dir_lease_break(struct cifs_tcon *tcon, __u8 lease_key[16]);
#endif /* _CACHED_DIR_H */
diff --git a/fs/smb/client/cifs_debug.c b/fs/smb/client/cifs_debug.c
index c0196be0e65f..f1cea365b6f1 100644
--- a/fs/smb/client/cifs_debug.c
+++ b/fs/smb/client/cifs_debug.c
@@ -26,6 +26,7 @@
#include "smbdirect.h"
#endif
#include "cifs_swn.h"
+#include "cached_dir.h"
void
cifs_dump_mem(char *label, void *data, int length)
@@ -280,6 +281,54 @@ static int cifs_debug_files_proc_show(struct seq_file *m, void *v)
return 0;
}
+static int cifs_debug_dirs_proc_show(struct seq_file *m, void *v)
+{
+ struct list_head *stmp, *tmp, *tmp1;
+ struct TCP_Server_Info *server;
+ struct cifs_ses *ses;
+ struct cifs_tcon *tcon;
+ struct cached_fids *cfids;
+ struct cached_fid *cfid;
+ LIST_HEAD(entry);
+
+ seq_puts(m, "# Version:1\n");
+ seq_puts(m, "# Format:\n");
+ seq_puts(m, "# <tree id> <sess id> <persistent fid> <path>\n");
+
+ spin_lock(&cifs_tcp_ses_lock);
+ list_for_each(stmp, &cifs_tcp_ses_list) {
+ server = list_entry(stmp, struct TCP_Server_Info,
+ tcp_ses_list);
+ list_for_each(tmp, &server->smb_ses_list) {
+ ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
+ list_for_each(tmp1, &ses->tcon_list) {
+ tcon = list_entry(tmp1, struct cifs_tcon, tcon_list);
+ cfids = tcon->cfids;
+ spin_lock(&cfids->cfid_list_lock); /* check lock ordering */
+ seq_printf(m, "Num entries: %d\n", cfids->num_entries);
+ list_for_each_entry(cfid, &cfids->entries, entry) {
+ seq_printf(m, "0x%x 0x%llx 0x%llx %s",
+ tcon->tid,
+ ses->Suid,
+ cfid->fid.persistent_fid,
+ cfid->path);
+ if (cfid->file_all_info_is_valid)
+ seq_printf(m, "\tvalid file info");
+ if (cfid->dirents.is_valid)
+ seq_printf(m, ", valid dirents");
+ seq_printf(m, "\n");
+ }
+ spin_unlock(&cfids->cfid_list_lock);
+
+
+ }
+ }
+ }
+ spin_unlock(&cifs_tcp_ses_lock);
+ seq_putc(m, '\n');
+ return 0;
+}
+
static __always_inline const char *compression_alg_str(__le16 alg)
{
switch (alg) {
@@ -863,6 +912,9 @@ cifs_proc_init(void)
proc_create_single("open_files", 0400, proc_fs_cifs,
cifs_debug_files_proc_show);
+ proc_create_single("open_dirs", 0400, proc_fs_cifs,
+ cifs_debug_dirs_proc_show);
+
proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_ops);
proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_ops);
proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_ops);
@@ -907,6 +959,7 @@ cifs_proc_clean(void)
remove_proc_entry("DebugData", proc_fs_cifs);
remove_proc_entry("open_files", proc_fs_cifs);
+ remove_proc_entry("open_dirs", proc_fs_cifs);
remove_proc_entry("cifsFYI", proc_fs_cifs);
remove_proc_entry("traceSMB", proc_fs_cifs);
remove_proc_entry("Stats", proc_fs_cifs);
@@ -1105,7 +1158,7 @@ static ssize_t cifs_security_flags_proc_write(struct file *file,
if ((count < 1) || (count > 11))
return -EINVAL;
- memset(flags_string, 0, 12);
+ memset(flags_string, 0, sizeof(flags_string));
if (copy_from_user(flags_string, buffer, count))
return -EFAULT;
diff --git a/fs/smb/client/cifs_ioctl.h b/fs/smb/client/cifs_ioctl.h
index 26327442e383..b51ce64fcccf 100644
--- a/fs/smb/client/cifs_ioctl.h
+++ b/fs/smb/client/cifs_ioctl.h
@@ -61,7 +61,7 @@ struct smb_query_info {
struct smb3_key_debug_info {
__u64 Suid;
__u16 cipher_type;
- __u8 auth_key[16]; /* SMB2_NTLMV2_SESSKEY_SIZE */
+ __u8 auth_key[SMB2_NTLMV2_SESSKEY_SIZE];
__u8 smb3encryptionkey[SMB3_SIGN_KEY_SIZE];
__u8 smb3decryptionkey[SMB3_SIGN_KEY_SIZE];
} __packed;
diff --git a/fs/smb/client/cifsencrypt.c b/fs/smb/client/cifsencrypt.c
index 35892df7335c..3cc686246908 100644
--- a/fs/smb/client/cifsencrypt.c
+++ b/fs/smb/client/cifsencrypt.c
@@ -343,7 +343,7 @@ static struct ntlmssp2_name *find_next_av(struct cifs_ses *ses,
len = AV_LEN(av);
if (AV_TYPE(av) == NTLMSSP_AV_EOL)
return NULL;
- if (!len || (u8 *)av + sizeof(*av) + len > end)
+ if ((u8 *)av + sizeof(*av) + len > end)
return NULL;
return av;
}
@@ -363,7 +363,7 @@ static int find_av_name(struct cifs_ses *ses, u16 type, char **name, u16 maxlen)
av_for_each_entry(ses, av) {
len = AV_LEN(av);
- if (AV_TYPE(av) != type)
+ if (AV_TYPE(av) != type || !len)
continue;
if (!IS_ALIGNED(len, sizeof(__le16))) {
cifs_dbg(VFS | ONCE, "%s: bad length(%u) for type %u\n",
@@ -532,17 +532,67 @@ CalcNTLMv2_response(const struct cifs_ses *ses, char *ntlmv2_hash, struct shash_
return rc;
}
+/*
+ * Set up NTLMv2 response blob with SPN (cifs/<hostname>) appended to the
+ * existing list of AV pairs.
+ */
+static int set_auth_key_response(struct cifs_ses *ses)
+{
+ size_t baselen = CIFS_SESS_KEY_SIZE + sizeof(struct ntlmv2_resp);
+ size_t len, spnlen, tilen = 0, num_avs = 2 /* SPN + EOL */;
+ struct TCP_Server_Info *server = ses->server;
+ char *spn __free(kfree) = NULL;
+ struct ntlmssp2_name *av;
+ char *rsp = NULL;
+ int rc;
+
+ spnlen = strlen(server->hostname);
+ len = sizeof("cifs/") + spnlen;
+ spn = kmalloc(len, GFP_KERNEL);
+ if (!spn) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ spnlen = scnprintf(spn, len, "cifs/%.*s",
+ (int)spnlen, server->hostname);
+
+ av_for_each_entry(ses, av)
+ tilen += sizeof(*av) + AV_LEN(av);
+
+ len = baselen + tilen + spnlen * sizeof(__le16) + num_avs * sizeof(*av);
+ rsp = kmalloc(len, GFP_KERNEL);
+ if (!rsp) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ memcpy(rsp + baselen, ses->auth_key.response, tilen);
+ av = (void *)(rsp + baselen + tilen);
+ av->type = cpu_to_le16(NTLMSSP_AV_TARGET_NAME);
+ av->length = cpu_to_le16(spnlen * sizeof(__le16));
+ cifs_strtoUTF16((__le16 *)av->data, spn, spnlen, ses->local_nls);
+ av = (void *)((__u8 *)av + sizeof(*av) + AV_LEN(av));
+ av->type = cpu_to_le16(NTLMSSP_AV_EOL);
+ av->length = 0;
+
+ rc = 0;
+ ses->auth_key.len = len;
+out:
+ ses->auth_key.response = rsp;
+ return rc;
+}
+
int
setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
{
struct shash_desc *hmacmd5 = NULL;
- int rc;
- int baselen;
- unsigned int tilen;
+ unsigned char *tiblob = NULL; /* target info blob */
struct ntlmv2_resp *ntlmv2;
char ntlmv2_hash[16];
- unsigned char *tiblob = NULL; /* target info blob */
__le64 rsp_timestamp;
+ __u64 cc;
+ int rc;
if (nls_cp == NULL) {
cifs_dbg(VFS, "%s called with nls_cp==NULL\n", __func__);
@@ -588,32 +638,25 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
* (as Windows 7 does)
*/
rsp_timestamp = find_timestamp(ses);
+ get_random_bytes(&cc, sizeof(cc));
- baselen = CIFS_SESS_KEY_SIZE + sizeof(struct ntlmv2_resp);
- tilen = ses->auth_key.len;
- tiblob = ses->auth_key.response;
+ cifs_server_lock(ses->server);
- ses->auth_key.response = kmalloc(baselen + tilen, GFP_KERNEL);
- if (!ses->auth_key.response) {
- rc = -ENOMEM;
+ tiblob = ses->auth_key.response;
+ rc = set_auth_key_response(ses);
+ if (rc) {
ses->auth_key.len = 0;
- goto setup_ntlmv2_rsp_ret;
+ goto unlock;
}
- ses->auth_key.len += baselen;
ntlmv2 = (struct ntlmv2_resp *)
(ses->auth_key.response + CIFS_SESS_KEY_SIZE);
ntlmv2->blob_signature = cpu_to_le32(0x00000101);
ntlmv2->reserved = 0;
ntlmv2->time = rsp_timestamp;
-
- get_random_bytes(&ntlmv2->client_chal, sizeof(ntlmv2->client_chal));
+ ntlmv2->client_chal = cc;
ntlmv2->reserved2 = 0;
- memcpy(ses->auth_key.response + baselen, tiblob, tilen);
-
- cifs_server_lock(ses->server);
-
rc = cifs_alloc_hash("hmac(md5)", &hmacmd5);
if (rc) {
cifs_dbg(VFS, "Could not allocate HMAC-MD5, rc=%d\n", rc);
diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index 0a5266ecfd15..0fdadd668a81 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -260,9 +260,9 @@ cifs_read_super(struct super_block *sb)
}
if (tcon->nocase)
- sb->s_d_op = &cifs_ci_dentry_ops;
+ set_default_d_op(sb, &cifs_ci_dentry_ops);
else
- sb->s_d_op = &cifs_dentry_ops;
+ set_default_d_op(sb, &cifs_dentry_ops);
sb->s_root = d_make_root(inode);
if (!sb->s_root) {
@@ -1525,7 +1525,7 @@ const struct file_operations cifs_file_ops = {
.flock = cifs_flock,
.fsync = cifs_fsync,
.flush = cifs_flush,
- .mmap = cifs_file_mmap,
+ .mmap_prepare = cifs_file_mmap_prepare,
.splice_read = filemap_splice_read,
.splice_write = iter_file_splice_write,
.llseek = cifs_llseek,
@@ -1545,7 +1545,7 @@ const struct file_operations cifs_file_strict_ops = {
.flock = cifs_flock,
.fsync = cifs_strict_fsync,
.flush = cifs_flush,
- .mmap = cifs_file_strict_mmap,
+ .mmap_prepare = cifs_file_strict_mmap_prepare,
.splice_read = filemap_splice_read,
.splice_write = iter_file_splice_write,
.llseek = cifs_llseek,
@@ -1565,7 +1565,7 @@ const struct file_operations cifs_file_direct_ops = {
.flock = cifs_flock,
.fsync = cifs_fsync,
.flush = cifs_flush,
- .mmap = cifs_file_mmap,
+ .mmap_prepare = cifs_file_mmap_prepare,
.splice_read = copy_splice_read,
.splice_write = iter_file_splice_write,
.unlocked_ioctl = cifs_ioctl,
@@ -1583,7 +1583,7 @@ const struct file_operations cifs_file_nobrl_ops = {
.release = cifs_close,
.fsync = cifs_fsync,
.flush = cifs_flush,
- .mmap = cifs_file_mmap,
+ .mmap_prepare = cifs_file_mmap_prepare,
.splice_read = filemap_splice_read,
.splice_write = iter_file_splice_write,
.llseek = cifs_llseek,
@@ -1601,7 +1601,7 @@ const struct file_operations cifs_file_strict_nobrl_ops = {
.release = cifs_close,
.fsync = cifs_strict_fsync,
.flush = cifs_flush,
- .mmap = cifs_file_strict_mmap,
+ .mmap_prepare = cifs_file_strict_mmap_prepare,
.splice_read = filemap_splice_read,
.splice_write = iter_file_splice_write,
.llseek = cifs_llseek,
@@ -1619,7 +1619,7 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
.release = cifs_close,
.fsync = cifs_fsync,
.flush = cifs_flush,
- .mmap = cifs_file_mmap,
+ .mmap_prepare = cifs_file_mmap_prepare,
.splice_read = copy_splice_read,
.splice_write = iter_file_splice_write,
.unlocked_ioctl = cifs_ioctl,
diff --git a/fs/smb/client/cifsfs.h b/fs/smb/client/cifsfs.h
index b9ec9fe16a98..487f39cff77e 100644
--- a/fs/smb/client/cifsfs.h
+++ b/fs/smb/client/cifsfs.h
@@ -103,8 +103,8 @@ extern int cifs_lock(struct file *, int, struct file_lock *);
extern int cifs_fsync(struct file *, loff_t, loff_t, int);
extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
extern int cifs_flush(struct file *, fl_owner_t id);
-extern int cifs_file_mmap(struct file *file, struct vm_area_struct *vma);
-extern int cifs_file_strict_mmap(struct file *file, struct vm_area_struct *vma);
+int cifs_file_mmap_prepare(struct vm_area_desc *desc);
+int cifs_file_strict_mmap_prepare(struct vm_area_desc *desc);
extern const struct file_operations cifs_dir_ops;
extern int cifs_readdir(struct file *file, struct dir_context *ctx);
diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index 45e94e18f4d5..19dd901fe8ab 100644
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -627,12 +627,14 @@ struct smb_version_operations {
bool (*is_network_name_deleted)(char *buf, struct TCP_Server_Info *srv);
struct reparse_data_buffer * (*get_reparse_point_buffer)(const struct kvec *rsp_iov,
u32 *plen);
- int (*create_reparse_symlink)(const unsigned int xid,
- struct inode *inode,
- struct dentry *dentry,
- struct cifs_tcon *tcon,
- const char *full_path,
- const char *symname);
+ struct inode * (*create_reparse_inode)(struct cifs_open_info_data *data,
+ struct super_block *sb,
+ const unsigned int xid,
+ struct cifs_tcon *tcon,
+ const char *full_path,
+ bool directory,
+ struct kvec *reparse_iov,
+ struct kvec *xattr_iov);
};
struct smb_version_values {
@@ -709,6 +711,7 @@ inc_rfc1001_len(void *buf, int count)
struct TCP_Server_Info {
struct list_head tcp_ses_list;
struct list_head smb_ses_list;
+ struct list_head rlist; /* reconnect list */
spinlock_t srv_lock; /* protect anything here that is not protected */
__u64 conn_id; /* connection identifier (useful for debugging) */
int srv_count; /* reference counter */
@@ -776,6 +779,7 @@ struct TCP_Server_Info {
__le32 session_key_id; /* retrieved from negotiate response and send in session setup request */
struct session_key session_key;
unsigned long lstrp; /* when we got last response from this server */
+ unsigned long neg_start; /* when negotiate started (jiffies) */
struct cifs_secmech secmech; /* crypto sec mech functs, descriptors */
#define CIFS_NEGFLAVOR_UNENCAP 1 /* wct == 17, but no ext_sec */
#define CIFS_NEGFLAVOR_EXTENDED 2 /* wct == 17, ext_sec bit set */
@@ -1302,6 +1306,7 @@ struct cifs_tcon {
bool use_persistent:1; /* use persistent instead of durable handles */
bool no_lease:1; /* Do not request leases on files or directories */
bool use_witness:1; /* use witness protocol */
+ bool dummy:1; /* dummy tcon used for reconnecting channels */
__le32 capabilities;
__u32 share_flags;
__u32 maximal_access;
diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h
index 66093fa78aed..40ec0634377f 100644
--- a/fs/smb/client/cifsproto.h
+++ b/fs/smb/client/cifsproto.h
@@ -136,6 +136,7 @@ extern int SendReceiveBlockingLock(const unsigned int xid,
struct smb_hdr *out_buf,
int *bytes_returned);
+void smb2_query_server_interfaces(struct work_struct *work);
void
cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server,
bool all_channels);
@@ -482,6 +483,14 @@ extern int cifs_query_reparse_point(const unsigned int xid,
const char *full_path,
u32 *tag, struct kvec *rsp,
int *rsp_buftype);
+extern struct inode *cifs_create_reparse_inode(struct cifs_open_info_data *data,
+ struct super_block *sb,
+ const unsigned int xid,
+ struct cifs_tcon *tcon,
+ const char *full_path,
+ bool directory,
+ struct kvec *reparse_iov,
+ struct kvec *xattr_iov);
extern int CIFSSMB_set_compression(const unsigned int xid,
struct cifs_tcon *tcon, __u16 fid);
extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
diff --git a/fs/smb/client/cifssmb.c b/fs/smb/client/cifssmb.c
index 7216fcec79e8..6c890db06593 100644
--- a/fs/smb/client/cifssmb.c
+++ b/fs/smb/client/cifssmb.c
@@ -1334,7 +1334,12 @@ cifs_readv_callback(struct mid_q_entry *mid)
cifs_stats_bytes_read(tcon, rdata->got_bytes);
break;
case MID_REQUEST_SUBMITTED:
+ trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_req_submitted);
+ goto do_retry;
case MID_RETRY_NEEDED:
+ trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_retry_needed);
+do_retry:
+ __set_bit(NETFS_SREQ_NEED_RETRY, &rdata->subreq.flags);
rdata->result = -EAGAIN;
if (server->sign && rdata->got_bytes)
/* reset bytes number since we can not check a sign */
@@ -1343,8 +1348,14 @@ cifs_readv_callback(struct mid_q_entry *mid)
task_io_account_read(rdata->got_bytes);
cifs_stats_bytes_read(tcon, rdata->got_bytes);
break;
+ case MID_RESPONSE_MALFORMED:
+ trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_malformed);
+ rdata->result = -EIO;
+ break;
default:
+ trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_unknown);
rdata->result = -EIO;
+ break;
}
if (rdata->result == -ENODATA) {
@@ -1713,10 +1724,21 @@ cifs_writev_callback(struct mid_q_entry *mid)
}
break;
case MID_REQUEST_SUBMITTED:
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_req_submitted);
+ __set_bit(NETFS_SREQ_NEED_RETRY, &wdata->subreq.flags);
+ result = -EAGAIN;
+ break;
case MID_RETRY_NEEDED:
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_retry_needed);
+ __set_bit(NETFS_SREQ_NEED_RETRY, &wdata->subreq.flags);
result = -EAGAIN;
break;
+ case MID_RESPONSE_MALFORMED:
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_malformed);
+ result = -EIO;
+ break;
default:
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_unknown);
result = -EIO;
break;
}
@@ -2829,6 +2851,134 @@ error:
return rc;
}
+struct inode *cifs_create_reparse_inode(struct cifs_open_info_data *data,
+ struct super_block *sb,
+ const unsigned int xid,
+ struct cifs_tcon *tcon,
+ const char *full_path,
+ bool directory,
+ struct kvec *reparse_iov,
+ struct kvec *xattr_iov)
+{
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+ struct cifs_open_parms oparms;
+ TRANSACT_IOCTL_REQ *io_req;
+ struct inode *new = NULL;
+ struct kvec in_iov[2];
+ struct kvec out_iov;
+ struct cifs_fid fid;
+ int io_req_len;
+ int oplock = 0;
+ int buf_type = 0;
+ int rc;
+
+ cifs_tcon_dbg(FYI, "%s: path=%s\n", __func__, full_path);
+
+ /*
+ * If server filesystem does not support reparse points then do not
+ * attempt to create reparse point. This will prevent creating unusable
+ * empty object on the server.
+ */
+ if (!(le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS))
+ return ERR_PTR(-EOPNOTSUPP);
+
+#ifndef CONFIG_CIFS_XATTR
+ if (xattr_iov)
+ return ERR_PTR(-EOPNOTSUPP);
+#endif
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
+ FILE_READ_ATTRIBUTES | FILE_WRITE_DATA | FILE_WRITE_EA,
+ FILE_CREATE,
+ (directory ? CREATE_NOT_FILE : CREATE_NOT_DIR) | OPEN_REPARSE_POINT,
+ ACL_NO_MODE);
+ oparms.fid = &fid;
+
+ rc = CIFS_open(xid, &oparms, &oplock, NULL);
+ if (rc)
+ return ERR_PTR(rc);
+
+#ifdef CONFIG_CIFS_XATTR
+ if (xattr_iov) {
+ struct smb2_file_full_ea_info *ea;
+
+ ea = &((struct smb2_create_ea_ctx *)xattr_iov->iov_base)->ea;
+ while (1) {
+ rc = CIFSSMBSetEA(xid,
+ tcon,
+ full_path,
+ &ea->ea_data[0],
+ &ea->ea_data[ea->ea_name_length+1],
+ le16_to_cpu(ea->ea_value_length),
+ cifs_sb->local_nls,
+ cifs_sb);
+ if (rc)
+ goto out_close;
+ if (le32_to_cpu(ea->next_entry_offset) == 0)
+ break;
+ ea = (struct smb2_file_full_ea_info *)((u8 *)ea +
+ le32_to_cpu(ea->next_entry_offset));
+ }
+ }
+#endif
+
+ rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **)&io_req, NULL);
+ if (rc)
+ goto out_close;
+
+ inc_rfc1001_len(io_req, sizeof(io_req->Pad));
+
+ io_req_len = be32_to_cpu(io_req->hdr.smb_buf_length) + sizeof(io_req->hdr.smb_buf_length);
+
+ /* NT IOCTL response contains one-word long output setup buffer with size of output data. */
+ io_req->MaxSetupCount = 1;
+ /* NT IOCTL response does not contain output parameters. */
+ io_req->MaxParameterCount = cpu_to_le32(0);
+ /* FSCTL_SET_REPARSE_POINT response contains empty output data. */
+ io_req->MaxDataCount = cpu_to_le32(0);
+
+ io_req->TotalParameterCount = cpu_to_le32(0);
+ io_req->TotalDataCount = cpu_to_le32(reparse_iov->iov_len);
+ io_req->ParameterCount = io_req->TotalParameterCount;
+ io_req->ParameterOffset = cpu_to_le32(0);
+ io_req->DataCount = io_req->TotalDataCount;
+ io_req->DataOffset = cpu_to_le32(offsetof(typeof(*io_req), Data) -
+ sizeof(io_req->hdr.smb_buf_length));
+ io_req->SetupCount = 4;
+ io_req->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL);
+ io_req->FunctionCode = cpu_to_le32(FSCTL_SET_REPARSE_POINT);
+ io_req->Fid = fid.netfid;
+ io_req->IsFsctl = 1;
+ io_req->IsRootFlag = 0;
+ io_req->ByteCount = cpu_to_le16(le32_to_cpu(io_req->DataCount) + sizeof(io_req->Pad));
+
+ inc_rfc1001_len(io_req, reparse_iov->iov_len);
+
+ in_iov[0].iov_base = (char *)io_req;
+ in_iov[0].iov_len = io_req_len;
+ in_iov[1] = *reparse_iov;
+ rc = SendReceive2(xid, tcon->ses, in_iov, ARRAY_SIZE(in_iov), &buf_type,
+ CIFS_NO_RSP_BUF, &out_iov);
+
+ cifs_buf_release(io_req);
+
+ if (!rc)
+ rc = cifs_get_inode_info(&new, full_path, data, sb, xid, NULL);
+
+out_close:
+ CIFSSMBClose(xid, tcon, fid.netfid);
+
+ /*
+ * If CREATE was successful but FSCTL_SET_REPARSE_POINT failed then
+ * remove the intermediate object created by CREATE. Otherwise
+ * empty object stay on the server when reparse call failed.
+ */
+ if (rc)
+ CIFSSMBDelFile(xid, tcon, full_path, cifs_sb, NULL);
+
+ return rc ? ERR_PTR(rc) : new;
+}
+
int
CIFSSMB_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
__u16 fid)
@@ -3998,6 +4148,12 @@ findFirstRetry:
pSMB->FileName[name_len] = 0;
pSMB->FileName[name_len+1] = 0;
name_len += 2;
+ } else if (!searchName[0]) {
+ pSMB->FileName[0] = CIFS_DIR_SEP(cifs_sb);
+ pSMB->FileName[1] = 0;
+ pSMB->FileName[2] = 0;
+ pSMB->FileName[3] = 0;
+ name_len = 4;
}
} else {
name_len = copy_path_name(pSMB->FileName, searchName);
@@ -4009,6 +4165,10 @@ findFirstRetry:
pSMB->FileName[name_len] = '*';
pSMB->FileName[name_len+1] = 0;
name_len += 2;
+ } else if (!searchName[0]) {
+ pSMB->FileName[0] = CIFS_DIR_SEP(cifs_sb);
+ pSMB->FileName[1] = 0;
+ name_len = 2;
}
}
@@ -4035,7 +4195,7 @@ findFirstRetry:
pSMB->SearchAttributes =
cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM |
ATTR_DIRECTORY);
- pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO));
+ pSMB->SearchCount = cpu_to_le16(msearch ? CIFSMaxBufSize/sizeof(FILE_UNIX_INFO) : 1);
pSMB->SearchFlags = cpu_to_le16(search_flags);
pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level);
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index c4fb80b37738..5eec8957f2a9 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -97,7 +97,7 @@ static int reconn_set_ipaddr_from_hostname(struct TCP_Server_Info *server)
return rc;
}
-static void smb2_query_server_interfaces(struct work_struct *work)
+void smb2_query_server_interfaces(struct work_struct *work)
{
int rc;
int xid;
@@ -124,6 +124,14 @@ static void smb2_query_server_interfaces(struct work_struct *work)
(SMB_INTERFACE_POLL_INTERVAL * HZ));
}
+#define set_need_reco(server) \
+do { \
+ spin_lock(&server->srv_lock); \
+ if (server->tcpStatus != CifsExiting) \
+ server->tcpStatus = CifsNeedReconnect; \
+ spin_unlock(&server->srv_lock); \
+} while (0)
+
/*
* Update the tcpStatus for the server.
* This is used to signal the cifsd thread to call cifs_reconnect
@@ -137,39 +145,45 @@ void
cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server,
bool all_channels)
{
- struct TCP_Server_Info *pserver;
+ struct TCP_Server_Info *nserver;
struct cifs_ses *ses;
+ LIST_HEAD(reco);
int i;
- /* If server is a channel, select the primary channel */
- pserver = SERVER_IS_CHAN(server) ? server->primary_server : server;
-
/* if we need to signal just this channel */
if (!all_channels) {
- spin_lock(&server->srv_lock);
- if (server->tcpStatus != CifsExiting)
- server->tcpStatus = CifsNeedReconnect;
- spin_unlock(&server->srv_lock);
+ set_need_reco(server);
return;
}
- spin_lock(&cifs_tcp_ses_lock);
- list_for_each_entry(ses, &pserver->smb_ses_list, smb_ses_list) {
- if (cifs_ses_exiting(ses))
- continue;
- spin_lock(&ses->chan_lock);
- for (i = 0; i < ses->chan_count; i++) {
- if (!ses->chans[i].server)
+ if (SERVER_IS_CHAN(server))
+ server = server->primary_server;
+ scoped_guard(spinlock, &cifs_tcp_ses_lock) {
+ set_need_reco(server);
+ list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
+ spin_lock(&ses->ses_lock);
+ if (ses->ses_status == SES_EXITING) {
+ spin_unlock(&ses->ses_lock);
continue;
-
- spin_lock(&ses->chans[i].server->srv_lock);
- if (ses->chans[i].server->tcpStatus != CifsExiting)
- ses->chans[i].server->tcpStatus = CifsNeedReconnect;
- spin_unlock(&ses->chans[i].server->srv_lock);
+ }
+ spin_lock(&ses->chan_lock);
+ for (i = 1; i < ses->chan_count; i++) {
+ nserver = ses->chans[i].server;
+ if (!nserver)
+ continue;
+ nserver->srv_count++;
+ list_add(&nserver->rlist, &reco);
+ }
+ spin_unlock(&ses->chan_lock);
+ spin_unlock(&ses->ses_lock);
}
- spin_unlock(&ses->chan_lock);
}
- spin_unlock(&cifs_tcp_ses_lock);
+
+ list_for_each_entry_safe(server, nserver, &reco, rlist) {
+ list_del_init(&server->rlist);
+ set_need_reco(server);
+ cifs_put_tcp_session(server, 0);
+ }
}
/*
@@ -665,12 +679,12 @@ server_unresponsive(struct TCP_Server_Info *server)
/*
* If we're in the process of mounting a share or reconnecting a session
* and the server abruptly shut down (e.g. socket wasn't closed, packet
- * had been ACK'ed but no SMB response), don't wait longer than 20s to
- * negotiate protocol.
+ * had been ACK'ed but no SMB response), don't wait longer than 20s from
+ * when negotiate actually started.
*/
spin_lock(&server->srv_lock);
if (server->tcpStatus == CifsInNegotiate &&
- time_after(jiffies, server->lstrp + 20 * HZ)) {
+ time_after(jiffies, server->neg_start + 20 * HZ)) {
spin_unlock(&server->srv_lock);
cifs_reconnect(server, false);
return true;
@@ -2866,20 +2880,14 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
tcon->max_cached_dirs = ctx->max_cached_dirs;
tcon->nodelete = ctx->nodelete;
tcon->local_lease = ctx->local_lease;
- INIT_LIST_HEAD(&tcon->pending_opens);
tcon->status = TID_GOOD;
- INIT_DELAYED_WORK(&tcon->query_interfaces,
- smb2_query_server_interfaces);
if (ses->server->dialect >= SMB30_PROT_ID &&
(ses->server->capabilities & SMB2_GLOBAL_CAP_MULTI_CHANNEL)) {
/* schedule query interfaces poll */
queue_delayed_work(cifsiod_wq, &tcon->query_interfaces,
(SMB_INTERFACE_POLL_INTERVAL * HZ));
}
-#ifdef CONFIG_CIFS_DFS_UPCALL
- INIT_DELAYED_WORK(&tcon->dfs_cache_work, dfs_cache_refresh);
-#endif
spin_lock(&cifs_tcp_ses_lock);
list_add(&tcon->tcon_list, &ses->tcon_list);
spin_unlock(&cifs_tcp_ses_lock);
@@ -3354,18 +3362,15 @@ generic_ip_connect(struct TCP_Server_Info *server)
struct net *net = cifs_net_ns(server);
struct sock *sk;
- rc = __sock_create(net, sfamily, SOCK_STREAM,
- IPPROTO_TCP, &server->ssocket, 1);
+ rc = sock_create_kern(net, sfamily, SOCK_STREAM,
+ IPPROTO_TCP, &server->ssocket);
if (rc < 0) {
cifs_server_dbg(VFS, "Error %d creating socket\n", rc);
return rc;
}
sk = server->ssocket->sk;
- __netns_tracker_free(net, &sk->ns_tracker, false);
- sk->sk_net_refcnt = 1;
- get_net_track(net, &sk->ns_tracker, GFP_KERNEL);
- sock_inuse_add(net, 1);
+ sk_net_refcnt_upgrade(sk);
/* BB other socket options to set KEEPALIVE, NODELAY? */
cifs_dbg(FYI, "Socket created\n");
@@ -4199,7 +4204,9 @@ retry:
return 0;
}
+ server->lstrp = jiffies;
server->tcpStatus = CifsInNegotiate;
+ server->neg_start = jiffies;
spin_unlock(&server->srv_lock);
rc = server->ops->negotiate(xid, ses, server);
diff --git a/fs/smb/client/dir.c b/fs/smb/client/dir.c
index 1c6e5389c51f..5223edf6d11a 100644
--- a/fs/smb/client/dir.c
+++ b/fs/smb/client/dir.c
@@ -190,6 +190,7 @@ static int cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned
int disposition;
struct TCP_Server_Info *server = tcon->ses->server;
struct cifs_open_parms oparms;
+ struct cached_fid *parent_cfid = NULL;
int rdwr_for_fscache = 0;
__le32 lease_flags = 0;
@@ -313,10 +314,10 @@ static int cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned
if (!tcon->unix_ext && (mode & S_IWUGO) == 0)
create_options |= CREATE_OPTION_READONLY;
+
retry_open:
if (tcon->cfids && direntry->d_parent && server->dialect >= SMB30_PROT_ID) {
- struct cached_fid *parent_cfid;
-
+ parent_cfid = NULL;
spin_lock(&tcon->cfids->cfid_list_lock);
list_for_each_entry(parent_cfid, &tcon->cfids->entries, entry) {
if (parent_cfid->dentry == direntry->d_parent) {
@@ -327,6 +328,7 @@ retry_open:
memcpy(fid->parent_lease_key,
parent_cfid->fid.lease_key,
SMB2_LEASE_KEY_SIZE);
+ parent_cfid->dirents.is_valid = false;
}
break;
}
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 9835672267d2..186e061068be 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -52,6 +52,7 @@ static void cifs_prepare_write(struct netfs_io_subrequest *subreq)
struct netfs_io_stream *stream = &req->rreq.io_streams[subreq->stream_nr];
struct TCP_Server_Info *server;
struct cifsFileInfo *open_file = req->cfile;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(wdata->rreq->inode->i_sb);
size_t wsize = req->rreq.wsize;
int rc;
@@ -63,6 +64,10 @@ static void cifs_prepare_write(struct netfs_io_subrequest *subreq)
server = cifs_pick_channel(tlink_tcon(open_file->tlink)->ses);
wdata->server = server;
+ if (cifs_sb->ctx->wsize == 0)
+ cifs_negotiate_wsize(server, cifs_sb->ctx,
+ tlink_tcon(req->cfile->tlink));
+
retry:
if (open_file->invalidHandle) {
rc = cifs_reopen_file(open_file, false);
@@ -160,10 +165,9 @@ static int cifs_prepare_read(struct netfs_io_subrequest *subreq)
server = cifs_pick_channel(tlink_tcon(req->cfile->tlink)->ses);
rdata->server = server;
- if (cifs_sb->ctx->rsize == 0) {
+ if (cifs_sb->ctx->rsize == 0)
cifs_negotiate_rsize(server, cifs_sb->ctx,
tlink_tcon(req->cfile->tlink));
- }
rc = server->ops->wait_mtu_credits(server, cifs_sb->ctx->rsize,
&size, &rdata->credits);
@@ -2995,38 +2999,38 @@ static const struct vm_operations_struct cifs_file_vm_ops = {
.page_mkwrite = cifs_page_mkwrite,
};
-int cifs_file_strict_mmap(struct file *file, struct vm_area_struct *vma)
+int cifs_file_strict_mmap_prepare(struct vm_area_desc *desc)
{
int xid, rc = 0;
- struct inode *inode = file_inode(file);
+ struct inode *inode = file_inode(desc->file);
xid = get_xid();
if (!CIFS_CACHE_READ(CIFS_I(inode)))
rc = cifs_zap_mapping(inode);
if (!rc)
- rc = generic_file_mmap(file, vma);
+ rc = generic_file_mmap_prepare(desc);
if (!rc)
- vma->vm_ops = &cifs_file_vm_ops;
+ desc->vm_ops = &cifs_file_vm_ops;
free_xid(xid);
return rc;
}
-int cifs_file_mmap(struct file *file, struct vm_area_struct *vma)
+int cifs_file_mmap_prepare(struct vm_area_desc *desc)
{
int rc, xid;
xid = get_xid();
- rc = cifs_revalidate_file(file);
+ rc = cifs_revalidate_file(desc->file);
if (rc)
cifs_dbg(FYI, "Validation prior to mmap failed, error=%d\n",
rc);
if (!rc)
- rc = generic_file_mmap(file, vma);
+ rc = generic_file_mmap_prepare(desc);
if (!rc)
- vma->vm_ops = &cifs_file_vm_ops;
+ desc->vm_ops = &cifs_file_vm_ops;
free_xid(xid);
return rc;
@@ -3084,7 +3088,8 @@ void cifs_oplock_break(struct work_struct *work)
struct cifsFileInfo *cfile = container_of(work, struct cifsFileInfo,
oplock_break);
struct inode *inode = d_inode(cfile->dentry);
- struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct super_block *sb = inode->i_sb;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
struct cifsInodeInfo *cinode = CIFS_I(inode);
struct cifs_tcon *tcon;
struct TCP_Server_Info *server;
@@ -3094,6 +3099,12 @@ void cifs_oplock_break(struct work_struct *work)
__u64 persistent_fid, volatile_fid;
__u16 net_fid;
+ /*
+ * Hold a reference to the superblock to prevent it and its inodes from
+ * being freed while we are accessing cinode. Otherwise, _cifsFileInfo_put()
+ * may release the last reference to the sb and trigger inode eviction.
+ */
+ cifs_sb_active(sb);
wait_on_bit(&cinode->flags, CIFS_INODE_PENDING_WRITERS,
TASK_UNINTERRUPTIBLE);
@@ -3166,6 +3177,7 @@ oplock_break_ack:
cifs_put_tlink(tlink);
out:
cifs_done_oplock_break(cinode);
+ cifs_sb_deactive(sb);
}
static int cifs_swap_activate(struct swap_info_struct *sis,
diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
index a634a34d4086..3f34bb07997b 100644
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -1475,35 +1475,21 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
pr_warn("username too long\n");
goto cifs_parse_mount_err;
}
- ctx->username = kstrdup(param->string, GFP_KERNEL);
- if (ctx->username == NULL) {
- cifs_errorf(fc, "OOM when copying username string\n");
- goto cifs_parse_mount_err;
- }
+ ctx->username = no_free_ptr(param->string);
break;
case Opt_pass:
kfree_sensitive(ctx->password);
ctx->password = NULL;
if (strlen(param->string) == 0)
break;
-
- ctx->password = kstrdup(param->string, GFP_KERNEL);
- if (ctx->password == NULL) {
- cifs_errorf(fc, "OOM when copying password string\n");
- goto cifs_parse_mount_err;
- }
+ ctx->password = no_free_ptr(param->string);
break;
case Opt_pass2:
kfree_sensitive(ctx->password2);
ctx->password2 = NULL;
if (strlen(param->string) == 0)
break;
-
- ctx->password2 = kstrdup(param->string, GFP_KERNEL);
- if (ctx->password2 == NULL) {
- cifs_errorf(fc, "OOM when copying password2 string\n");
- goto cifs_parse_mount_err;
- }
+ ctx->password2 = no_free_ptr(param->string);
break;
case Opt_ip:
if (strlen(param->string) == 0) {
@@ -1526,11 +1512,7 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
}
kfree(ctx->domainname);
- ctx->domainname = kstrdup(param->string, GFP_KERNEL);
- if (ctx->domainname == NULL) {
- cifs_errorf(fc, "OOM when copying domainname string\n");
- goto cifs_parse_mount_err;
- }
+ ctx->domainname = no_free_ptr(param->string);
cifs_dbg(FYI, "Domain name set\n");
break;
case Opt_srcaddr:
@@ -1550,11 +1532,7 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
if (strncasecmp(param->string, "default", 7) != 0) {
kfree(ctx->iocharset);
- ctx->iocharset = kstrdup(param->string, GFP_KERNEL);
- if (ctx->iocharset == NULL) {
- cifs_errorf(fc, "OOM when copying iocharset string\n");
- goto cifs_parse_mount_err;
- }
+ ctx->iocharset = no_free_ptr(param->string);
}
/* if iocharset not set then load_nls_default
* is used by caller
@@ -1824,10 +1802,14 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
cifs_errorf(fc, "symlinkroot mount options must be absolute path\n");
goto cifs_parse_mount_err;
}
- kfree(ctx->symlinkroot);
- ctx->symlinkroot = kstrdup(param->string, GFP_KERNEL);
- if (!ctx->symlinkroot)
+ if (strnlen(param->string, PATH_MAX) == PATH_MAX) {
+ cifs_errorf(fc, "symlinkroot path too long (max path length: %u)\n",
+ PATH_MAX - 1);
goto cifs_parse_mount_err;
+ }
+ kfree(ctx->symlinkroot);
+ ctx->symlinkroot = param->string;
+ param->string = NULL;
break;
}
/* case Opt_ignore: - is ignored as expected ... */
@@ -1837,13 +1819,6 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
goto cifs_parse_mount_err;
}
- /*
- * By default resolve all native absolute symlinks relative to "/mnt/".
- * Same default has drvfs driver running in WSL for resolving SMB shares.
- */
- if (!ctx->symlinkroot)
- ctx->symlinkroot = kstrdup("/mnt/", GFP_KERNEL);
-
return 0;
cifs_parse_mount_err:
diff --git a/fs/smb/client/ioctl.c b/fs/smb/client/ioctl.c
index 56439da4f119..0a9935ce05a5 100644
--- a/fs/smb/client/ioctl.c
+++ b/fs/smb/client/ioctl.c
@@ -506,7 +506,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
le16_to_cpu(tcon->ses->server->cipher_type);
pkey_inf.Suid = tcon->ses->Suid;
memcpy(pkey_inf.auth_key, tcon->ses->auth_key.response,
- 16 /* SMB2_NTLMV2_SESSKEY_SIZE */);
+ SMB2_NTLMV2_SESSKEY_SIZE);
memcpy(pkey_inf.smb3decryptionkey,
tcon->ses->smb3decryptionkey, SMB3_SIGN_KEY_SIZE);
memcpy(pkey_inf.smb3encryptionkey,
diff --git a/fs/smb/client/link.c b/fs/smb/client/link.c
index 769752ad2c5c..2ecd705e9e8c 100644
--- a/fs/smb/client/link.c
+++ b/fs/smb/client/link.c
@@ -19,6 +19,7 @@
#include "smb2proto.h"
#include "cifs_ioctl.h"
#include "fs_context.h"
+#include "reparse.h"
/*
* M-F Symlink Functions - Begin
@@ -570,7 +571,6 @@ cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,
int rc = -EOPNOTSUPP;
unsigned int xid;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
- struct TCP_Server_Info *server;
struct tcon_link *tlink;
struct cifs_tcon *pTcon;
const char *full_path;
@@ -593,7 +593,6 @@ cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,
goto symlink_exit;
}
pTcon = tlink_tcon(tlink);
- server = cifs_pick_channel(pTcon->ses);
full_path = build_path_from_dentry(direntry, page);
if (IS_ERR(full_path)) {
@@ -643,13 +642,9 @@ cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,
case CIFS_SYMLINK_TYPE_NATIVE:
case CIFS_SYMLINK_TYPE_NFS:
case CIFS_SYMLINK_TYPE_WSL:
- if (server->ops->create_reparse_symlink &&
- (le32_to_cpu(pTcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS)) {
- rc = server->ops->create_reparse_symlink(xid, inode,
- direntry,
- pTcon,
- full_path,
- symname);
+ if (le32_to_cpu(pTcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS) {
+ rc = create_reparse_symlink(xid, inode, direntry, pTcon,
+ full_path, symname);
goto symlink_exit;
}
break;
diff --git a/fs/smb/client/misc.c b/fs/smb/client/misc.c
index e77017f47084..da23cc12a52c 100644
--- a/fs/smb/client/misc.c
+++ b/fs/smb/client/misc.c
@@ -151,6 +151,12 @@ tcon_info_alloc(bool dir_leases_enabled, enum smb3_tcon_ref_trace trace)
#ifdef CONFIG_CIFS_DFS_UPCALL
INIT_LIST_HEAD(&ret_buf->dfs_ses_list);
#endif
+ INIT_LIST_HEAD(&ret_buf->pending_opens);
+ INIT_DELAYED_WORK(&ret_buf->query_interfaces,
+ smb2_query_server_interfaces);
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ INIT_DELAYED_WORK(&ret_buf->dfs_cache_work, dfs_cache_refresh);
+#endif
return ret_buf;
}
diff --git a/fs/smb/client/readdir.c b/fs/smb/client/readdir.c
index ba0193cf9033..4e5460206397 100644
--- a/fs/smb/client/readdir.c
+++ b/fs/smb/client/readdir.c
@@ -264,7 +264,7 @@ cifs_posix_to_fattr(struct cifs_fattr *fattr, struct smb2_posix_info *info,
/* The Mode field in the response can now include the file type as well */
fattr->cf_mode = wire_mode_to_posix(le32_to_cpu(info->Mode),
fattr->cf_cifsattrs & ATTR_DIRECTORY);
- fattr->cf_dtype = S_DT(le32_to_cpu(info->Mode));
+ fattr->cf_dtype = S_DT(fattr->cf_mode);
switch (fattr->cf_mode & S_IFMT) {
case S_IFLNK:
diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c
index bb25e77c5540..33c1d970747c 100644
--- a/fs/smb/client/reparse.c
+++ b/fs/smb/client/reparse.c
@@ -34,7 +34,7 @@ static int detect_directory_symlink_target(struct cifs_sb_info *cifs_sb,
const char *symname,
bool *directory);
-int smb2_create_reparse_symlink(const unsigned int xid, struct inode *inode,
+int create_reparse_symlink(const unsigned int xid, struct inode *inode,
struct dentry *dentry, struct cifs_tcon *tcon,
const char *full_path, const char *symname)
{
@@ -57,6 +57,7 @@ static int create_native_symlink(const unsigned int xid, struct inode *inode,
struct reparse_symlink_data_buffer *buf = NULL;
struct cifs_open_info_data data = {};
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ const char *symroot = cifs_sb->ctx->symlinkroot;
struct inode *new;
struct kvec iov;
__le16 *path = NULL;
@@ -82,7 +83,8 @@ static int create_native_symlink(const unsigned int xid, struct inode *inode,
.symlink_target = symlink_target,
};
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) && symname[0] == '/') {
+ if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) &&
+ symroot && symname[0] == '/') {
/*
* This is a request to create an absolute symlink on the server
* which does not support POSIX paths, and expects symlink in
@@ -92,7 +94,7 @@ static int create_native_symlink(const unsigned int xid, struct inode *inode,
* ensure compatibility of this symlink stored in absolute form
* on the SMB server.
*/
- if (!strstarts(symname, cifs_sb->ctx->symlinkroot)) {
+ if (!strstarts(symname, symroot)) {
/*
* If the absolute Linux symlink target path is not
* inside "symlinkroot" location then there is no way
@@ -101,12 +103,12 @@ static int create_native_symlink(const unsigned int xid, struct inode *inode,
cifs_dbg(VFS,
"absolute symlink '%s' cannot be converted to NT format "
"because it is outside of symlinkroot='%s'\n",
- symname, cifs_sb->ctx->symlinkroot);
+ symname, symroot);
rc = -EINVAL;
goto out;
}
- len = strlen(cifs_sb->ctx->symlinkroot);
- if (cifs_sb->ctx->symlinkroot[len-1] != '/')
+ len = strlen(symroot);
+ if (symroot[len - 1] != '/')
len++;
if (symname[len] >= 'a' && symname[len] <= 'z' &&
(symname[len+1] == '/' || symname[len+1] == '\0')) {
@@ -225,7 +227,8 @@ static int create_native_symlink(const unsigned int xid, struct inode *inode,
iov.iov_base = buf;
iov.iov_len = len;
- new = smb2_get_reparse_inode(&data, inode->i_sb, xid,
+ new = tcon->ses->server->ops->create_reparse_inode(
+ &data, inode->i_sb, xid,
tcon, full_path, directory,
&iov, NULL);
if (!IS_ERR(new))
@@ -397,7 +400,8 @@ static int create_native_socket(const unsigned int xid, struct inode *inode,
struct inode *new;
int rc = 0;
- new = smb2_get_reparse_inode(&data, inode->i_sb, xid,
+ new = tcon->ses->server->ops->create_reparse_inode(
+ &data, inode->i_sb, xid,
tcon, full_path, false, &iov, NULL);
if (!IS_ERR(new))
d_instantiate(dentry, new);
@@ -490,7 +494,8 @@ static int mknod_nfs(unsigned int xid, struct inode *inode,
.symlink_target = kstrdup(symname, GFP_KERNEL),
};
- new = smb2_get_reparse_inode(&data, inode->i_sb, xid,
+ new = tcon->ses->server->ops->create_reparse_inode(
+ &data, inode->i_sb, xid,
tcon, full_path, false, &iov, NULL);
if (!IS_ERR(new))
d_instantiate(dentry, new);
@@ -683,7 +688,8 @@ static int mknod_wsl(unsigned int xid, struct inode *inode,
memcpy(data.wsl.eas, &cc->ea, len);
data.wsl.eas_len = len;
- new = smb2_get_reparse_inode(&data, inode->i_sb,
+ new = tcon->ses->server->ops->create_reparse_inode(
+ &data, inode->i_sb,
xid, tcon, full_path, false,
&reparse_iov, &xattr_iov);
if (!IS_ERR(new))
@@ -696,7 +702,7 @@ static int mknod_wsl(unsigned int xid, struct inode *inode,
return rc;
}
-int smb2_mknod_reparse(unsigned int xid, struct inode *inode,
+int mknod_reparse(unsigned int xid, struct inode *inode,
struct dentry *dentry, struct cifs_tcon *tcon,
const char *full_path, umode_t mode, dev_t dev)
{
@@ -782,6 +788,7 @@ int smb2_parse_native_symlink(char **target, const char *buf, unsigned int len,
const char *full_path,
struct cifs_sb_info *cifs_sb)
{
+ const char *symroot = cifs_sb->ctx->symlinkroot;
char sep = CIFS_DIR_SEP(cifs_sb);
char *linux_target = NULL;
char *smb_target = NULL;
@@ -815,7 +822,8 @@ int smb2_parse_native_symlink(char **target, const char *buf, unsigned int len,
goto out;
}
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) && !relative) {
+ if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) &&
+ symroot && !relative) {
/*
* This is an absolute symlink from the server which does not
* support POSIX paths, so the symlink is in NT-style path.
@@ -875,15 +883,8 @@ globalroot:
abs_path += sizeof("\\DosDevices\\")-1;
else if (strstarts(abs_path, "\\GLOBAL??\\"))
abs_path += sizeof("\\GLOBAL??\\")-1;
- else {
- /* Unhandled absolute symlink, points outside of DOS/Win32 */
- cifs_dbg(VFS,
- "absolute symlink '%s' cannot be converted from NT format "
- "because points to unknown target\n",
- smb_target);
- rc = -EIO;
- goto out;
- }
+ else
+ goto out_unhandled_target;
/* Sometimes path separator after \?? is double backslash */
if (abs_path[0] == '\\')
@@ -910,25 +911,19 @@ globalroot:
abs_path++;
abs_path[0] = drive_letter;
} else {
- /* Unhandled absolute symlink. Report an error. */
- cifs_dbg(VFS,
- "absolute symlink '%s' cannot be converted from NT format "
- "because points to unknown target\n",
- smb_target);
- rc = -EIO;
- goto out;
+ goto out_unhandled_target;
}
abs_path_len = strlen(abs_path)+1;
- symlinkroot_len = strlen(cifs_sb->ctx->symlinkroot);
- if (cifs_sb->ctx->symlinkroot[symlinkroot_len-1] == '/')
+ symlinkroot_len = strlen(symroot);
+ if (symroot[symlinkroot_len - 1] == '/')
symlinkroot_len--;
linux_target = kmalloc(symlinkroot_len + 1 + abs_path_len, GFP_KERNEL);
if (!linux_target) {
rc = -ENOMEM;
goto out;
}
- memcpy(linux_target, cifs_sb->ctx->symlinkroot, symlinkroot_len);
+ memcpy(linux_target, symroot, symlinkroot_len);
linux_target[symlinkroot_len] = '/';
memcpy(linux_target + symlinkroot_len + 1, abs_path, abs_path_len);
} else if (smb_target[0] == sep && relative) {
@@ -966,6 +961,7 @@ globalroot:
* These paths have same format as Linux symlinks, so no
* conversion is needed.
*/
+out_unhandled_target:
linux_target = smb_target;
smb_target = NULL;
}
@@ -1172,7 +1168,6 @@ out:
if (!have_xattr_dev && (tag == IO_REPARSE_TAG_LX_CHR || tag == IO_REPARSE_TAG_LX_BLK))
return false;
- fattr->cf_dtype = S_DT(fattr->cf_mode);
return true;
}
diff --git a/fs/smb/client/reparse.h b/fs/smb/client/reparse.h
index 08de853b36a8..66269c10beba 100644
--- a/fs/smb/client/reparse.h
+++ b/fs/smb/client/reparse.h
@@ -129,10 +129,10 @@ static inline bool cifs_open_data_reparse(struct cifs_open_info_data *data)
bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb,
struct cifs_fattr *fattr,
struct cifs_open_info_data *data);
-int smb2_create_reparse_symlink(const unsigned int xid, struct inode *inode,
+int create_reparse_symlink(const unsigned int xid, struct inode *inode,
struct dentry *dentry, struct cifs_tcon *tcon,
const char *full_path, const char *symname);
-int smb2_mknod_reparse(unsigned int xid, struct inode *inode,
+int mknod_reparse(unsigned int xid, struct inode *inode,
struct dentry *dentry, struct cifs_tcon *tcon,
const char *full_path, umode_t mode, dev_t dev);
struct reparse_data_buffer *smb2_get_reparse_point_buffer(const struct kvec *rsp_iov, u32 *len);
diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c
index ec0db32c7d98..0a8c2fcc9ded 100644
--- a/fs/smb/client/sess.c
+++ b/fs/smb/client/sess.c
@@ -332,6 +332,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
struct cifs_server_iface *old_iface = NULL;
struct cifs_server_iface *last_iface = NULL;
struct sockaddr_storage ss;
+ int retry = 0;
spin_lock(&ses->chan_lock);
chan_index = cifs_ses_get_chan_index(ses, server);
@@ -360,6 +361,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
return;
}
+try_again:
last_iface = list_last_entry(&ses->iface_list, struct cifs_server_iface,
iface_head);
iface_min_speed = last_iface->speed;
@@ -397,6 +399,13 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server)
}
if (list_entry_is_head(iface, &ses->iface_list, iface_head)) {
+ list_for_each_entry(iface, &ses->iface_list, iface_head)
+ iface->weight_fulfilled = 0;
+
+ /* see if it can be satisfied in second attempt */
+ if (!retry++)
+ goto try_again;
+
iface = NULL;
cifs_dbg(FYI, "unable to find a suitable iface\n");
}
@@ -498,8 +507,7 @@ cifs_ses_add_channel(struct cifs_ses *ses,
ctx->domainauto = ses->domainAuto;
ctx->domainname = ses->domainName;
- /* no hostname for extra channels */
- ctx->server_hostname = "";
+ ctx->server_hostname = ses->server->hostname;
ctx->username = ses->user_name;
ctx->password = ses->password;
diff --git a/fs/smb/client/smb1ops.c b/fs/smb/client/smb1ops.c
index b27a182629ec..e364b6515af3 100644
--- a/fs/smb/client/smb1ops.c
+++ b/fs/smb/client/smb1ops.c
@@ -16,6 +16,7 @@
#include "fs_context.h"
#include "nterr.h"
#include "smberr.h"
+#include "reparse.h"
/*
* An NT cancel request header looks just like the original request except:
@@ -1263,17 +1264,26 @@ cifs_make_node(unsigned int xid, struct inode *inode,
if (rc == 0)
d_instantiate(dentry, newinode);
return rc;
+ } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+ /*
+ * Check if mounted with mount parm 'sfu' mount parm.
+ * SFU emulation should work with all servers
+ * and was used by default in earlier versions of Windows.
+ */
+ return cifs_sfu_make_node(xid, inode, dentry, tcon,
+ full_path, mode, dev);
+ } else if (le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS) {
+ /*
+ * mknod via reparse points requires server support for
+ * storing reparse points, which is available since
+ * Windows 2000, but was not widely used until release
+ * of Windows Server 2012 by the Windows NFS server.
+ */
+ return mknod_reparse(xid, inode, dentry, tcon,
+ full_path, mode, dev);
+ } else {
+ return -EOPNOTSUPP;
}
- /*
- * Check if mounted with mount parm 'sfu' mount parm.
- * SFU emulation should work with all servers, but only
- * supports block and char device, socket & fifo,
- * and was used by default in earlier versions of Windows
- */
- if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL))
- return -EPERM;
- return cifs_sfu_make_node(xid, inode, dentry, tcon,
- full_path, mode, dev);
}
static bool
@@ -1370,6 +1380,7 @@ struct smb_version_operations smb1_operations = {
.create_hardlink = CIFSCreateHardLink,
.query_symlink = cifs_query_symlink,
.get_reparse_point_buffer = cifs_get_reparse_point_buffer,
+ .create_reparse_inode = cifs_create_reparse_inode,
.open = cifs_open_file,
.set_fid = cifs_set_fid,
.close = cifs_close_file,
diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c
index 2a3e46b8e15a..69d251726c02 100644
--- a/fs/smb/client/smb2inode.c
+++ b/fs/smb/client/smb2inode.c
@@ -1058,10 +1058,11 @@ int smb2_query_path_info(const unsigned int xid,
* Skip SMB2_OP_GET_REPARSE if symlink already parsed in create
* response.
*/
- if (data->reparse.tag != IO_REPARSE_TAG_SYMLINK)
+ if (data->reparse.tag != IO_REPARSE_TAG_SYMLINK) {
cmds[num_cmds++] = SMB2_OP_GET_REPARSE;
- if (!tcon->posix_extensions)
- cmds[num_cmds++] = SMB2_OP_QUERY_WSL_EA;
+ if (!tcon->posix_extensions)
+ cmds[num_cmds++] = SMB2_OP_QUERY_WSL_EA;
+ }
oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
FILE_READ_ATTRIBUTES |
@@ -1320,7 +1321,7 @@ smb2_set_file_info(struct inode *inode, const char *full_path,
return rc;
}
-struct inode *smb2_get_reparse_inode(struct cifs_open_info_data *data,
+struct inode *smb2_create_reparse_inode(struct cifs_open_info_data *data,
struct super_block *sb,
const unsigned int xid,
struct cifs_tcon *tcon,
@@ -1346,7 +1347,8 @@ struct inode *smb2_get_reparse_inode(struct cifs_open_info_data *data,
* empty object on the server.
*/
if (!(le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS))
- return ERR_PTR(-EOPNOTSUPP);
+ if (!tcon->posix_extensions)
+ return ERR_PTR(-EOPNOTSUPP);
oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
SYNCHRONIZE | DELETE |
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index 1468c16ea9b8..1b4a31894f43 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -4316,6 +4316,7 @@ crypt_message(struct TCP_Server_Info *server, int num_rqst,
u8 key[SMB3_ENC_DEC_KEY_SIZE];
struct aead_request *req;
u8 *iv;
+ DECLARE_CRYPTO_WAIT(wait);
unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize);
void *creq;
size_t sensitive_size;
@@ -4366,7 +4367,11 @@ crypt_message(struct TCP_Server_Info *server, int num_rqst,
aead_request_set_crypt(req, sg, sg, crypt_len, iv);
aead_request_set_ad(req, assoc_data_len);
- rc = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
+ aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ crypto_req_done, &wait);
+
+ rc = crypto_wait_req(enc ? crypto_aead_encrypt(req)
+ : crypto_aead_decrypt(req), &wait);
if (!rc && enc)
memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE);
@@ -5255,8 +5260,9 @@ static int smb2_make_node(unsigned int xid, struct inode *inode,
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
rc = cifs_sfu_make_node(xid, inode, dentry, tcon,
full_path, mode, dev);
- } else if (le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS) {
- rc = smb2_mknod_reparse(xid, inode, dentry, tcon,
+ } else if ((le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS)
+ || (tcon->posix_extensions)) {
+ rc = mknod_reparse(xid, inode, dentry, tcon,
full_path, mode, dev);
}
return rc;
@@ -5315,7 +5321,7 @@ struct smb_version_operations smb20_operations = {
.get_reparse_point_buffer = smb2_get_reparse_point_buffer,
.query_mf_symlink = smb3_query_mf_symlink,
.create_mf_symlink = smb3_create_mf_symlink,
- .create_reparse_symlink = smb2_create_reparse_symlink,
+ .create_reparse_inode = smb2_create_reparse_inode,
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
@@ -5418,7 +5424,7 @@ struct smb_version_operations smb21_operations = {
.get_reparse_point_buffer = smb2_get_reparse_point_buffer,
.query_mf_symlink = smb3_query_mf_symlink,
.create_mf_symlink = smb3_create_mf_symlink,
- .create_reparse_symlink = smb2_create_reparse_symlink,
+ .create_reparse_inode = smb2_create_reparse_inode,
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
@@ -5525,7 +5531,7 @@ struct smb_version_operations smb30_operations = {
.get_reparse_point_buffer = smb2_get_reparse_point_buffer,
.query_mf_symlink = smb3_query_mf_symlink,
.create_mf_symlink = smb3_create_mf_symlink,
- .create_reparse_symlink = smb2_create_reparse_symlink,
+ .create_reparse_inode = smb2_create_reparse_inode,
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
@@ -5641,7 +5647,7 @@ struct smb_version_operations smb311_operations = {
.get_reparse_point_buffer = smb2_get_reparse_point_buffer,
.query_mf_symlink = smb3_query_mf_symlink,
.create_mf_symlink = smb3_create_mf_symlink,
- .create_reparse_symlink = smb2_create_reparse_symlink,
+ .create_reparse_inode = smb2_create_reparse_inode,
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index a717be1626a3..2df93a75e3b8 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -424,9 +424,9 @@ skip_sess_setup:
free_xid(xid);
ses->flags &= ~CIFS_SES_FLAGS_PENDING_QUERY_INTERFACES;
- /* regardless of rc value, setup polling */
- queue_delayed_work(cifsiod_wq, &tcon->query_interfaces,
- (SMB_INTERFACE_POLL_INTERVAL * HZ));
+ if (!tcon->ipc && !tcon->dummy)
+ queue_delayed_work(cifsiod_wq, &tcon->query_interfaces,
+ (SMB_INTERFACE_POLL_INTERVAL * HZ));
mutex_unlock(&ses->session_mutex);
@@ -4229,10 +4229,8 @@ void smb2_reconnect_server(struct work_struct *work)
}
goto done;
}
-
tcon->status = TID_GOOD;
- tcon->retry = false;
- tcon->need_reconnect = false;
+ tcon->dummy = true;
/* now reconnect sessions for necessary channels */
list_for_each_entry_safe(ses, ses2, &tmp_ses_list, rlist) {
@@ -4567,7 +4565,11 @@ smb2_readv_callback(struct mid_q_entry *mid)
cifs_stats_bytes_read(tcon, rdata->got_bytes);
break;
case MID_REQUEST_SUBMITTED:
+ trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_req_submitted);
+ goto do_retry;
case MID_RETRY_NEEDED:
+ trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_retry_needed);
+do_retry:
__set_bit(NETFS_SREQ_NEED_RETRY, &rdata->subreq.flags);
rdata->result = -EAGAIN;
if (server->sign && rdata->got_bytes)
@@ -4578,11 +4580,15 @@ smb2_readv_callback(struct mid_q_entry *mid)
cifs_stats_bytes_read(tcon, rdata->got_bytes);
break;
case MID_RESPONSE_MALFORMED:
+ trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_malformed);
credits.value = le16_to_cpu(shdr->CreditRequest);
credits.instance = server->reconnect_instance;
- fallthrough;
+ rdata->result = -EIO;
+ break;
default:
+ trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_unknown);
rdata->result = -EIO;
+ break;
}
#ifdef CONFIG_CIFS_SMB_DIRECT
/*
@@ -4835,11 +4841,14 @@ smb2_writev_callback(struct mid_q_entry *mid)
switch (mid->mid_state) {
case MID_RESPONSE_RECEIVED:
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_progress);
credits.value = le16_to_cpu(rsp->hdr.CreditRequest);
credits.instance = server->reconnect_instance;
result = smb2_check_receive(mid, server, 0);
- if (result != 0)
+ if (result != 0) {
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_bad);
break;
+ }
written = le32_to_cpu(rsp->DataLength);
/*
@@ -4861,14 +4870,23 @@ smb2_writev_callback(struct mid_q_entry *mid)
}
break;
case MID_REQUEST_SUBMITTED:
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_req_submitted);
+ __set_bit(NETFS_SREQ_NEED_RETRY, &wdata->subreq.flags);
+ result = -EAGAIN;
+ break;
case MID_RETRY_NEEDED:
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_retry_needed);
+ __set_bit(NETFS_SREQ_NEED_RETRY, &wdata->subreq.flags);
result = -EAGAIN;
break;
case MID_RESPONSE_MALFORMED:
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_malformed);
credits.value = le16_to_cpu(rsp->hdr.CreditRequest);
credits.instance = server->reconnect_instance;
- fallthrough;
+ result = -EIO;
+ break;
default:
+ trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_unknown);
result = -EIO;
break;
}
@@ -4908,7 +4926,6 @@ smb2_writev_callback(struct mid_q_entry *mid)
server->credits, server->in_flight,
0, cifs_trace_rw_credits_write_response_clear);
wdata->credits.value = 0;
- trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_progress);
cifs_write_subrequest_terminated(wdata, result ?: written);
release_mid(mid);
trace_smb3_rw_credits(rreq_debug_id, subreq_debug_index, 0,
diff --git a/fs/smb/client/smb2proto.h b/fs/smb/client/smb2proto.h
index 035aa1624053..6e805ece6a7b 100644
--- a/fs/smb/client/smb2proto.h
+++ b/fs/smb/client/smb2proto.h
@@ -54,7 +54,7 @@ extern int smb3_handle_read_data(struct TCP_Server_Info *server,
extern int smb2_query_reparse_tag(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb, const char *path,
__u32 *reparse_tag);
-struct inode *smb2_get_reparse_inode(struct cifs_open_info_data *data,
+struct inode *smb2_create_reparse_inode(struct cifs_open_info_data *data,
struct super_block *sb,
const unsigned int xid,
struct cifs_tcon *tcon,
@@ -314,9 +314,6 @@ int smb311_posix_query_path_info(const unsigned int xid,
int posix_info_parse(const void *beg, const void *end,
struct smb2_posix_info_parsed *out);
int posix_info_sid_size(const void *beg, const void *end);
-int smb2_create_reparse_symlink(const unsigned int xid, struct inode *inode,
- struct dentry *dentry, struct cifs_tcon *tcon,
- const char *full_path, const char *symname);
int smb2_make_nfs_node(unsigned int xid, struct inode *inode,
struct dentry *dentry, struct cifs_tcon *tcon,
const char *full_path, umode_t mode, dev_t dev);
diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c
index 5ae847919da5..754e94a0e07f 100644
--- a/fs/smb/client/smbdirect.c
+++ b/fs/smb/client/smbdirect.c
@@ -907,8 +907,10 @@ wait_send_queue:
.local_dma_lkey = sc->ib.pd->local_dma_lkey,
.direction = DMA_TO_DEVICE,
};
+ size_t payload_len = umin(*_remaining_data_length,
+ sp->max_send_size - sizeof(*packet));
- rc = smb_extract_iter_to_rdma(iter, *_remaining_data_length,
+ rc = smb_extract_iter_to_rdma(iter, payload_len,
&extract);
if (rc < 0)
goto err_dma;
@@ -1013,6 +1015,27 @@ static int smbd_post_send_empty(struct smbd_connection *info)
return smbd_post_send_iter(info, NULL, &remaining_data_length);
}
+static int smbd_post_send_full_iter(struct smbd_connection *info,
+ struct iov_iter *iter,
+ int *_remaining_data_length)
+{
+ int rc = 0;
+
+ /*
+ * smbd_post_send_iter() respects the
+ * negotiated max_send_size, so we need to
+ * loop until the full iter is posted
+ */
+
+ while (iov_iter_count(iter) > 0) {
+ rc = smbd_post_send_iter(info, iter, _remaining_data_length);
+ if (rc < 0)
+ break;
+ }
+
+ return rc;
+}
+
/*
* Post a receive request to the transport
* The remote peer can only send data when a receive request is posted
@@ -1452,6 +1475,9 @@ static int allocate_caches_and_workqueue(struct smbd_connection *info)
char name[MAX_NAME_LEN];
int rc;
+ if (WARN_ON_ONCE(sp->max_recv_size < sizeof(struct smbdirect_data_transfer)))
+ return -ENOMEM;
+
scnprintf(name, MAX_NAME_LEN, "smbd_request_%p", info);
info->request_cache =
kmem_cache_create(
@@ -1469,12 +1495,17 @@ static int allocate_caches_and_workqueue(struct smbd_connection *info)
goto out1;
scnprintf(name, MAX_NAME_LEN, "smbd_response_%p", info);
+
+ struct kmem_cache_args response_args = {
+ .align = __alignof__(struct smbd_response),
+ .useroffset = (offsetof(struct smbd_response, packet) +
+ sizeof(struct smbdirect_data_transfer)),
+ .usersize = sp->max_recv_size - sizeof(struct smbdirect_data_transfer),
+ };
info->response_cache =
- kmem_cache_create(
- name,
- sizeof(struct smbd_response) +
- sp->max_recv_size,
- 0, SLAB_HWCACHE_ALIGN, NULL);
+ kmem_cache_create(name,
+ sizeof(struct smbd_response) + sp->max_recv_size,
+ &response_args, SLAB_HWCACHE_ALIGN);
if (!info->response_cache)
goto out2;
@@ -1747,35 +1778,39 @@ try_again:
}
/*
- * Receive data from receive reassembly queue
+ * Receive data from the transport's receive reassembly queue
* All the incoming data packets are placed in reassembly queue
- * buf: the buffer to read data into
+ * iter: the buffer to read data into
* size: the length of data to read
* return value: actual data read
- * Note: this implementation copies the data from reassebmly queue to receive
+ *
+ * Note: this implementation copies the data from reassembly queue to receive
* buffers used by upper layer. This is not the optimal code path. A better way
* to do it is to not have upper layer allocate its receive buffers but rather
* borrow the buffer from reassembly queue, and return it after data is
* consumed. But this will require more changes to upper layer code, and also
* need to consider packet boundaries while they still being reassembled.
*/
-static int smbd_recv_buf(struct smbd_connection *info, char *buf,
- unsigned int size)
+int smbd_recv(struct smbd_connection *info, struct msghdr *msg)
{
struct smbdirect_socket *sc = &info->socket;
struct smbd_response *response;
struct smbdirect_data_transfer *data_transfer;
+ size_t size = iov_iter_count(&msg->msg_iter);
int to_copy, to_read, data_read, offset;
u32 data_length, remaining_data_length, data_offset;
int rc;
+ if (WARN_ON_ONCE(iov_iter_rw(&msg->msg_iter) == WRITE))
+ return -EINVAL; /* It's a bug in upper layer to get there */
+
again:
/*
* No need to hold the reassembly queue lock all the time as we are
* the only one reading from the front of the queue. The transport
* may add more entries to the back of the queue at the same time
*/
- log_read(INFO, "size=%d info->reassembly_data_length=%d\n", size,
+ log_read(INFO, "size=%zd info->reassembly_data_length=%d\n", size,
info->reassembly_data_length);
if (info->reassembly_data_length >= size) {
int queue_length;
@@ -1813,7 +1848,10 @@ again:
if (response->first_segment && size == 4) {
unsigned int rfc1002_len =
data_length + remaining_data_length;
- *((__be32 *)buf) = cpu_to_be32(rfc1002_len);
+ __be32 rfc1002_hdr = cpu_to_be32(rfc1002_len);
+ if (copy_to_iter(&rfc1002_hdr, sizeof(rfc1002_hdr),
+ &msg->msg_iter) != sizeof(rfc1002_hdr))
+ return -EFAULT;
data_read = 4;
response->first_segment = false;
log_read(INFO, "returning rfc1002 length %d\n",
@@ -1822,10 +1860,9 @@ again:
}
to_copy = min_t(int, data_length - offset, to_read);
- memcpy(
- buf + data_read,
- (char *)data_transfer + data_offset + offset,
- to_copy);
+ if (copy_to_iter((char *)data_transfer + data_offset + offset,
+ to_copy, &msg->msg_iter) != to_copy)
+ return -EFAULT;
/* move on to the next buffer? */
if (to_copy == data_length - offset) {
@@ -1891,90 +1928,6 @@ read_rfc1002_done:
}
/*
- * Receive a page from receive reassembly queue
- * page: the page to read data into
- * to_read: the length of data to read
- * return value: actual data read
- */
-static int smbd_recv_page(struct smbd_connection *info,
- struct page *page, unsigned int page_offset,
- unsigned int to_read)
-{
- struct smbdirect_socket *sc = &info->socket;
- int ret;
- char *to_address;
- void *page_address;
-
- /* make sure we have the page ready for read */
- ret = wait_event_interruptible(
- info->wait_reassembly_queue,
- info->reassembly_data_length >= to_read ||
- sc->status != SMBDIRECT_SOCKET_CONNECTED);
- if (ret)
- return ret;
-
- /* now we can read from reassembly queue and not sleep */
- page_address = kmap_atomic(page);
- to_address = (char *) page_address + page_offset;
-
- log_read(INFO, "reading from page=%p address=%p to_read=%d\n",
- page, to_address, to_read);
-
- ret = smbd_recv_buf(info, to_address, to_read);
- kunmap_atomic(page_address);
-
- return ret;
-}
-
-/*
- * Receive data from transport
- * msg: a msghdr point to the buffer, can be ITER_KVEC or ITER_BVEC
- * return: total bytes read, or 0. SMB Direct will not do partial read.
- */
-int smbd_recv(struct smbd_connection *info, struct msghdr *msg)
-{
- char *buf;
- struct page *page;
- unsigned int to_read, page_offset;
- int rc;
-
- if (iov_iter_rw(&msg->msg_iter) == WRITE) {
- /* It's a bug in upper layer to get there */
- cifs_dbg(VFS, "Invalid msg iter dir %u\n",
- iov_iter_rw(&msg->msg_iter));
- rc = -EINVAL;
- goto out;
- }
-
- switch (iov_iter_type(&msg->msg_iter)) {
- case ITER_KVEC:
- buf = msg->msg_iter.kvec->iov_base;
- to_read = msg->msg_iter.kvec->iov_len;
- rc = smbd_recv_buf(info, buf, to_read);
- break;
-
- case ITER_BVEC:
- page = msg->msg_iter.bvec->bv_page;
- page_offset = msg->msg_iter.bvec->bv_offset;
- to_read = msg->msg_iter.bvec->bv_len;
- rc = smbd_recv_page(info, page, page_offset, to_read);
- break;
-
- default:
- /* It's a bug in upper layer to get there */
- cifs_dbg(VFS, "Invalid msg type %d\n",
- iov_iter_type(&msg->msg_iter));
- rc = -EINVAL;
- }
-
-out:
- /* SMBDirect will read it all or nothing */
- if (rc > 0)
- msg->msg_iter.count = 0;
- return rc;
-}
-
-/*
* Send data to transport
* Each rqst is transported as a SMBDirect payload
* rqst: the data to write
@@ -2032,14 +1985,14 @@ int smbd_send(struct TCP_Server_Info *server,
klen += rqst->rq_iov[i].iov_len;
iov_iter_kvec(&iter, ITER_SOURCE, rqst->rq_iov, rqst->rq_nvec, klen);
- rc = smbd_post_send_iter(info, &iter, &remaining_data_length);
+ rc = smbd_post_send_full_iter(info, &iter, &remaining_data_length);
if (rc < 0)
break;
if (iov_iter_count(&rqst->rq_iter) > 0) {
/* And then the data pages if there are any */
- rc = smbd_post_send_iter(info, &rqst->rq_iter,
- &remaining_data_length);
+ rc = smbd_post_send_full_iter(info, &rqst->rq_iter,
+ &remaining_data_length);
if (rc < 0)
break;
}
@@ -2589,13 +2542,14 @@ static ssize_t smb_extract_folioq_to_rdma(struct iov_iter *iter,
size_t fsize = folioq_folio_size(folioq, slot);
if (offset < fsize) {
- size_t part = umin(maxsize - ret, fsize - offset);
+ size_t part = umin(maxsize, fsize - offset);
if (!smb_set_sge(rdma, folio_page(folio, 0), offset, part))
return -EIO;
offset += part;
ret += part;
+ maxsize -= part;
}
if (offset >= fsize) {
@@ -2610,7 +2564,7 @@ static ssize_t smb_extract_folioq_to_rdma(struct iov_iter *iter,
slot = 0;
}
}
- } while (rdma->nr_sge < rdma->max_sge || maxsize > 0);
+ } while (rdma->nr_sge < rdma->max_sge && maxsize > 0);
iter->folioq = folioq;
iter->folioq_slot = slot;
diff --git a/fs/smb/client/trace.h b/fs/smb/client/trace.h
index 52bcb55d9952..93e5b2bb9f28 100644
--- a/fs/smb/client/trace.h
+++ b/fs/smb/client/trace.h
@@ -140,7 +140,7 @@ DECLARE_EVENT_CLASS(smb3_rw_err_class,
__entry->len = len;
__entry->rc = rc;
),
- TP_printk("\tR=%08x[%x] xid=%u sid=0x%llx tid=0x%x fid=0x%llx offset=0x%llx len=0x%x rc=%d",
+ TP_printk("R=%08x[%x] xid=%u sid=0x%llx tid=0x%x fid=0x%llx offset=0x%llx len=0x%x rc=%d",
__entry->rreq_debug_id, __entry->rreq_debug_index,
__entry->xid, __entry->sesid, __entry->tid, __entry->fid,
__entry->offset, __entry->len, __entry->rc)
@@ -190,7 +190,7 @@ DECLARE_EVENT_CLASS(smb3_other_err_class,
__entry->len = len;
__entry->rc = rc;
),
- TP_printk("\txid=%u sid=0x%llx tid=0x%x fid=0x%llx offset=0x%llx len=0x%x rc=%d",
+ TP_printk("xid=%u sid=0x%llx tid=0x%x fid=0x%llx offset=0x%llx len=0x%x rc=%d",
__entry->xid, __entry->sesid, __entry->tid, __entry->fid,
__entry->offset, __entry->len, __entry->rc)
)
@@ -247,7 +247,7 @@ DECLARE_EVENT_CLASS(smb3_copy_range_err_class,
__entry->len = len;
__entry->rc = rc;
),
- TP_printk("\txid=%u sid=0x%llx tid=0x%x source fid=0x%llx source offset=0x%llx target fid=0x%llx target offset=0x%llx len=0x%x rc=%d",
+ TP_printk("xid=%u sid=0x%llx tid=0x%x source fid=0x%llx source offset=0x%llx target fid=0x%llx target offset=0x%llx len=0x%x rc=%d",
__entry->xid, __entry->sesid, __entry->tid, __entry->target_fid,
__entry->src_offset, __entry->target_fid, __entry->target_offset, __entry->len, __entry->rc)
)
@@ -298,7 +298,7 @@ DECLARE_EVENT_CLASS(smb3_copy_range_done_class,
__entry->target_offset = target_offset;
__entry->len = len;
),
- TP_printk("\txid=%u sid=0x%llx tid=0x%x source fid=0x%llx source offset=0x%llx target fid=0x%llx target offset=0x%llx len=0x%x",
+ TP_printk("xid=%u sid=0x%llx tid=0x%x source fid=0x%llx source offset=0x%llx target fid=0x%llx target offset=0x%llx len=0x%x",
__entry->xid, __entry->sesid, __entry->tid, __entry->target_fid,
__entry->src_offset, __entry->target_fid, __entry->target_offset, __entry->len)
)
@@ -482,7 +482,7 @@ DECLARE_EVENT_CLASS(smb3_fd_class,
__entry->tid = tid;
__entry->sesid = sesid;
),
- TP_printk("\txid=%u sid=0x%llx tid=0x%x fid=0x%llx",
+ TP_printk("xid=%u sid=0x%llx tid=0x%x fid=0x%llx",
__entry->xid, __entry->sesid, __entry->tid, __entry->fid)
)
@@ -521,7 +521,7 @@ DECLARE_EVENT_CLASS(smb3_fd_err_class,
__entry->sesid = sesid;
__entry->rc = rc;
),
- TP_printk("\txid=%u sid=0x%llx tid=0x%x fid=0x%llx rc=%d",
+ TP_printk("xid=%u sid=0x%llx tid=0x%x fid=0x%llx rc=%d",
__entry->xid, __entry->sesid, __entry->tid, __entry->fid,
__entry->rc)
)
@@ -794,7 +794,7 @@ DECLARE_EVENT_CLASS(smb3_cmd_err_class,
__entry->status = status;
__entry->rc = rc;
),
- TP_printk("\tsid=0x%llx tid=0x%x cmd=%u mid=%llu status=0x%x rc=%d",
+ TP_printk("sid=0x%llx tid=0x%x cmd=%u mid=%llu status=0x%x rc=%d",
__entry->sesid, __entry->tid, __entry->cmd, __entry->mid,
__entry->status, __entry->rc)
)
@@ -829,7 +829,7 @@ DECLARE_EVENT_CLASS(smb3_cmd_done_class,
__entry->cmd = cmd;
__entry->mid = mid;
),
- TP_printk("\tsid=0x%llx tid=0x%x cmd=%u mid=%llu",
+ TP_printk("sid=0x%llx tid=0x%x cmd=%u mid=%llu",
__entry->sesid, __entry->tid,
__entry->cmd, __entry->mid)
)
@@ -867,7 +867,7 @@ DECLARE_EVENT_CLASS(smb3_mid_class,
__entry->when_sent = when_sent;
__entry->when_received = when_received;
),
- TP_printk("\tcmd=%u mid=%llu pid=%u, when_sent=%lu when_rcv=%lu",
+ TP_printk("cmd=%u mid=%llu pid=%u, when_sent=%lu when_rcv=%lu",
__entry->cmd, __entry->mid, __entry->pid, __entry->when_sent,
__entry->when_received)
)
@@ -898,7 +898,7 @@ DECLARE_EVENT_CLASS(smb3_exit_err_class,
__assign_str(func_name);
__entry->rc = rc;
),
- TP_printk("\t%s: xid=%u rc=%d",
+ TP_printk("%s: xid=%u rc=%d",
__get_str(func_name), __entry->xid, __entry->rc)
)
@@ -924,7 +924,7 @@ DECLARE_EVENT_CLASS(smb3_sync_err_class,
__entry->ino = ino;
__entry->rc = rc;
),
- TP_printk("\tino=%lu rc=%d",
+ TP_printk("ino=%lu rc=%d",
__entry->ino, __entry->rc)
)
@@ -950,7 +950,7 @@ DECLARE_EVENT_CLASS(smb3_enter_exit_class,
__entry->xid = xid;
__assign_str(func_name);
),
- TP_printk("\t%s: xid=%u",
+ TP_printk("%s: xid=%u",
__get_str(func_name), __entry->xid)
)
generated by cgit (git 2.34.1) at 2025-08-01 06:02:59 +0000