summaryrefslogtreecommitdiffstats
path: root/fs/cifs/cifssmb.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/cifs/cifssmb.c')
-rw-r--r--fs/cifs/cifssmb.c158
1 files changed, 59 insertions, 99 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 6f6fb3606a5d..0496934feecb 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -124,86 +124,6 @@ cifs_mark_open_files_invalid(struct cifs_tcon *tcon)
*/
}
-#ifdef CONFIG_CIFS_DFS_UPCALL
-static int __cifs_reconnect_tcon(const struct nls_table *nlsc,
- struct cifs_tcon *tcon)
-{
- int rc;
- struct dfs_cache_tgt_list tl;
- struct dfs_cache_tgt_iterator *it = NULL;
- char *tree;
- const char *tcp_host;
- size_t tcp_host_len;
- const char *dfs_host;
- size_t dfs_host_len;
-
- tree = kzalloc(MAX_TREE_SIZE, GFP_KERNEL);
- if (!tree)
- return -ENOMEM;
-
- if (tcon->ipc) {
- scnprintf(tree, MAX_TREE_SIZE, "\\\\%s\\IPC$",
- tcon->ses->server->hostname);
- rc = CIFSTCon(0, tcon->ses, tree, tcon, nlsc);
- goto out;
- }
-
- if (!tcon->dfs_path) {
- rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nlsc);
- goto out;
- }
-
- rc = dfs_cache_noreq_find(tcon->dfs_path + 1, NULL, &tl);
- if (rc)
- goto out;
-
- extract_unc_hostname(tcon->ses->server->hostname, &tcp_host,
- &tcp_host_len);
-
- for (it = dfs_cache_get_tgt_iterator(&tl); it;
- it = dfs_cache_get_next_tgt(&tl, it)) {
- const char *tgt = dfs_cache_get_tgt_name(it);
-
- extract_unc_hostname(tgt, &dfs_host, &dfs_host_len);
-
- if (dfs_host_len != tcp_host_len
- || strncasecmp(dfs_host, tcp_host, dfs_host_len) != 0) {
- cifs_dbg(FYI, "%s: skipping %.*s, doesn't match %.*s",
- __func__,
- (int)dfs_host_len, dfs_host,
- (int)tcp_host_len, tcp_host);
- continue;
- }
-
- scnprintf(tree, MAX_TREE_SIZE, "\\%s", tgt);
-
- rc = CIFSTCon(0, tcon->ses, tree, tcon, nlsc);
- if (!rc)
- break;
- if (rc == -EREMOTE)
- break;
- }
-
- if (!rc) {
- if (it)
- rc = dfs_cache_noreq_update_tgthint(tcon->dfs_path + 1,
- it);
- else
- rc = -ENOENT;
- }
- dfs_cache_free_tgts(&tl);
-out:
- kfree(tree);
- return rc;
-}
-#else
-static inline int __cifs_reconnect_tcon(const struct nls_table *nlsc,
- struct cifs_tcon *tcon)
-{
- return CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nlsc);
-}
-#endif
-
/* reconnect the socket, tcon, and smb session if needed */
static int
cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
@@ -251,8 +171,8 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
(server->tcpStatus != CifsNeedReconnect),
10 * HZ);
if (rc < 0) {
- cifs_dbg(FYI, "%s: aborting reconnect due to a received"
- " signal by the process\n", __func__);
+ cifs_dbg(FYI, "%s: aborting reconnect due to a received signal by the process\n",
+ __func__);
return -ERESTARTSYS;
}
@@ -308,19 +228,19 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
}
cifs_mark_open_files_invalid(tcon);
- rc = __cifs_reconnect_tcon(nls_codepage, tcon);
+ rc = cifs_tree_connect(0, tcon, nls_codepage);
mutex_unlock(&ses->session_mutex);
cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);
if (rc) {
- printk_once(KERN_WARNING "reconnect tcon failed rc = %d\n", rc);
+ pr_warn_once("reconnect tcon failed rc = %d\n", rc);
goto out;
}
atomic_inc(&tconInfoReconnectCount);
/* tell server Unix caps we support */
- if (ses->capabilities & CAP_UNIX)
+ if (cap_unix(ses))
reset_cifs_unix_caps(0, tcon, NULL, NULL);
/*
@@ -546,7 +466,7 @@ cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required)
/* If server requires signing, does client allow it? */
if (srv_sign_required) {
if (!mnt_sign_enabled) {
- cifs_dbg(VFS, "Server requires signing, but it's disabled in SecurityFlags!");
+ cifs_dbg(VFS, "Server requires signing, but it's disabled in SecurityFlags!\n");
return -ENOTSUPP;
}
server->sign = true;
@@ -555,14 +475,14 @@ cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required)
/* If client requires signing, does server allow it? */
if (mnt_sign_required) {
if (!srv_sign_enabled) {
- cifs_dbg(VFS, "Server does not support signing!");
+ cifs_dbg(VFS, "Server does not support signing!\n");
return -ENOTSUPP;
}
server->sign = true;
}
if (cifs_rdma_enabled(server) && server->sign)
- cifs_dbg(VFS, "Signing is enabled, and RDMA read/write will be disabled");
+ cifs_dbg(VFS, "Signing is enabled, and RDMA read/write will be disabled\n");
return 0;
}
@@ -583,6 +503,8 @@ decode_lanman_negprot_rsp(struct TCP_Server_Info *server, NEGOTIATE_RSP *pSMBr)
cifs_max_pending);
set_credits(server, server->maxReq);
server->maxBuf = le16_to_cpu(rsp->MaxBufSize);
+ /* set up max_read for readpages check */
+ server->max_read = server->maxBuf;
/* even though we do not use raw we might as well set this
accurately, in case we ever find a need for it */
if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) {
@@ -659,7 +581,7 @@ should_set_ext_sec_flag(enum securityEnum sectype)
if (global_secflags &
(CIFSSEC_MAY_KRB5 | CIFSSEC_MAY_NTLMSSP))
return true;
- /* Fallthrough */
+ fallthrough;
default:
return false;
}
@@ -690,7 +612,7 @@ CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses)
pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS);
if (should_set_ext_sec_flag(ses->sectype)) {
- cifs_dbg(FYI, "Requesting extended security.");
+ cifs_dbg(FYI, "Requesting extended security\n");
pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC;
}
@@ -744,6 +666,8 @@ CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses)
set_credits(server, server->maxReq);
/* probably no need to store and check maxvcs */
server->maxBuf = le32_to_cpu(pSMBr->MaxBufferSize);
+ /* set up max_read for readpages check */
+ server->max_read = server->maxBuf;
server->max_rw = le32_to_cpu(pSMBr->MaxRawSize);
cifs_dbg(NOISY, "Max buf = %d\n", ses->server->maxBuf);
server->capabilities = le32_to_cpu(pSMBr->Capabilities);
@@ -1591,7 +1515,6 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
if (server->ops->is_session_expired &&
server->ops->is_session_expired(buf)) {
cifs_reconnect(server);
- wake_up(&server->response_q);
return -1;
}
@@ -2138,8 +2061,8 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
}
}
+ kref_put(&wdata2->refcount, cifs_writedata_release);
if (rc) {
- kref_put(&wdata2->refcount, cifs_writedata_release);
if (is_retryable_error(rc))
continue;
i += nr_pages;
@@ -2361,7 +2284,7 @@ int
CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
unsigned int *nbytes, struct kvec *iov, int n_vec)
{
- int rc = -EACCES;
+ int rc;
WRITE_REQ *pSMB = NULL;
int wct;
int smb_hdr_len;
@@ -3854,7 +3777,7 @@ GetExtAttrRetry:
struct file_chattr_info *pfinfo;
/* BB Do we need a cast or hash here ? */
if (count != 16) {
- cifs_dbg(FYI, "Illegal size ret in GetExtAttr\n");
+ cifs_dbg(FYI, "Invalid size ret in GetExtAttr\n");
rc = -EIO;
goto GetExtAttrOut;
}
@@ -4230,7 +4153,7 @@ QFileInfoRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cifs_dbg(FYI, "Send error in QFileInfo = %d", rc);
+ cifs_dbg(FYI, "Send error in QFileInfo = %d\n", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
@@ -4397,7 +4320,7 @@ UnixQFileInfoRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cifs_dbg(FYI, "Send error in UnixQFileInfo = %d", rc);
+ cifs_dbg(FYI, "Send error in UnixQFileInfo = %d\n", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
@@ -4479,7 +4402,7 @@ UnixQPathInfoRetry:
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cifs_dbg(FYI, "Send error in UnixQPathInfo = %d", rc);
+ cifs_dbg(FYI, "Send error in UnixQPathInfo = %d\n", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
@@ -4899,7 +4822,7 @@ GetInodeNumberRetry:
struct file_internal_info *pfinfo;
/* BB Do we need a cast or hash here ? */
if (count < 8) {
- cifs_dbg(FYI, "Illegal size ret in QryIntrnlInf\n");
+ cifs_dbg(FYI, "Invalid size ret in QryIntrnlInf\n");
rc = -EIO;
goto GetInodeNumOut;
}
@@ -5880,10 +5803,42 @@ CIFSSMBSetFileDisposition(const unsigned int xid, struct cifs_tcon *tcon,
return rc;
}
+static int
+CIFSSMBSetPathInfoFB(const unsigned int xid, struct cifs_tcon *tcon,
+ const char *fileName, const FILE_BASIC_INFO *data,
+ const struct nls_table *nls_codepage,
+ struct cifs_sb_info *cifs_sb)
+{
+ int oplock = 0;
+ struct cifs_open_parms oparms;
+ struct cifs_fid fid;
+ int rc;
+
+ oparms.tcon = tcon;
+ oparms.cifs_sb = cifs_sb;
+ oparms.desired_access = GENERIC_WRITE;
+ oparms.create_options = cifs_create_options(cifs_sb, 0);
+ oparms.disposition = FILE_OPEN;
+ oparms.path = fileName;
+ oparms.fid = &fid;
+ oparms.reconnect = false;
+
+ rc = CIFS_open(xid, &oparms, &oplock, NULL);
+ if (rc)
+ goto out;
+
+ rc = CIFSSMBSetFileInfo(xid, tcon, data, fid.netfid, current->tgid);
+ CIFSSMBClose(xid, tcon, fid.netfid);
+out:
+
+ return rc;
+}
+
int
CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
const char *fileName, const FILE_BASIC_INFO *data,
- const struct nls_table *nls_codepage, int remap)
+ const struct nls_table *nls_codepage,
+ struct cifs_sb_info *cifs_sb)
{
TRANSACTION2_SPI_REQ *pSMB = NULL;
TRANSACTION2_SPI_RSP *pSMBr = NULL;
@@ -5892,6 +5847,7 @@ CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
int bytes_returned = 0;
char *data_offset;
__u16 params, param_offset, offset, byte_count, count;
+ int remap = cifs_remap(cifs_sb);
cifs_dbg(FYI, "In SetTimes\n");
@@ -5954,6 +5910,10 @@ SetTimesRetry:
if (rc == -EAGAIN)
goto SetTimesRetry;
+ if (rc == -EOPNOTSUPP)
+ return CIFSSMBSetPathInfoFB(xid, tcon, fileName, data,
+ nls_codepage, cifs_sb);
+
return rc;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-21 00:41:04 +0000