810 строки
24 KiB
C
810 строки
24 KiB
C
/*
|
|
* fs/cifs_debug.c
|
|
*
|
|
* Copyright (C) International Business Machines Corp., 2000,2005
|
|
*
|
|
* Modified by Steve French (sfrench@us.ibm.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
|
|
* the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#include <linux/fs.h>
|
|
#include <linux/string.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/module.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/uaccess.h>
|
|
#include "cifspdu.h"
|
|
#include "cifsglob.h"
|
|
#include "cifsproto.h"
|
|
#include "cifs_debug.h"
|
|
#include "cifsfs.h"
|
|
#ifdef CONFIG_CIFS_SMB_DIRECT
|
|
#include "smbdirect.h"
|
|
#endif
|
|
|
|
void
|
|
cifs_dump_mem(char *label, void *data, int length)
|
|
{
|
|
pr_debug("%s: dump of %d bytes of data at 0x%p\n", label, length, data);
|
|
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 4,
|
|
data, length, true);
|
|
}
|
|
|
|
void cifs_dump_detail(void *buf)
|
|
{
|
|
#ifdef CONFIG_CIFS_DEBUG2
|
|
struct smb_hdr *smb = (struct smb_hdr *)buf;
|
|
|
|
cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d\n",
|
|
smb->Command, smb->Status.CifsError,
|
|
smb->Flags, smb->Flags2, smb->Mid, smb->Pid);
|
|
cifs_dbg(VFS, "smb buf %p len %u\n", smb, smbCalcSize(smb));
|
|
#endif /* CONFIG_CIFS_DEBUG2 */
|
|
}
|
|
|
|
void cifs_dump_mids(struct TCP_Server_Info *server)
|
|
{
|
|
#ifdef CONFIG_CIFS_DEBUG2
|
|
struct list_head *tmp;
|
|
struct mid_q_entry *mid_entry;
|
|
|
|
if (server == NULL)
|
|
return;
|
|
|
|
cifs_dbg(VFS, "Dump pending requests:\n");
|
|
spin_lock(&GlobalMid_Lock);
|
|
list_for_each(tmp, &server->pending_mid_q) {
|
|
mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
|
|
cifs_dbg(VFS, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %llu\n",
|
|
mid_entry->mid_state,
|
|
le16_to_cpu(mid_entry->command),
|
|
mid_entry->pid,
|
|
mid_entry->callback_data,
|
|
mid_entry->mid);
|
|
#ifdef CONFIG_CIFS_STATS2
|
|
cifs_dbg(VFS, "IsLarge: %d buf: %p time rcv: %ld now: %ld\n",
|
|
mid_entry->large_buf,
|
|
mid_entry->resp_buf,
|
|
mid_entry->when_received,
|
|
jiffies);
|
|
#endif /* STATS2 */
|
|
cifs_dbg(VFS, "IsMult: %d IsEnd: %d\n",
|
|
mid_entry->multiRsp, mid_entry->multiEnd);
|
|
if (mid_entry->resp_buf) {
|
|
cifs_dump_detail(mid_entry->resp_buf);
|
|
cifs_dump_mem("existing buf: ",
|
|
mid_entry->resp_buf, 62);
|
|
}
|
|
}
|
|
spin_unlock(&GlobalMid_Lock);
|
|
#endif /* CONFIG_CIFS_DEBUG2 */
|
|
}
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
static void cifs_debug_tcon(struct seq_file *m, struct cifs_tcon *tcon)
|
|
{
|
|
__u32 dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
|
|
|
|
seq_printf(m, "%s Mounts: %d ", tcon->treeName, tcon->tc_count);
|
|
if (tcon->nativeFileSystem)
|
|
seq_printf(m, "Type: %s ", tcon->nativeFileSystem);
|
|
seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x\n\tPathComponentMax: %d Status: %d",
|
|
le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics),
|
|
le32_to_cpu(tcon->fsAttrInfo.Attributes),
|
|
le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
|
|
tcon->tidStatus);
|
|
if (dev_type == FILE_DEVICE_DISK)
|
|
seq_puts(m, " type: DISK ");
|
|
else if (dev_type == FILE_DEVICE_CD_ROM)
|
|
seq_puts(m, " type: CDROM ");
|
|
else
|
|
seq_printf(m, " type: %d ", dev_type);
|
|
if (tcon->seal)
|
|
seq_printf(m, " Encrypted");
|
|
if (tcon->unix_ext)
|
|
seq_printf(m, " POSIX Extensions");
|
|
if (tcon->ses->server->ops->dump_share_caps)
|
|
tcon->ses->server->ops->dump_share_caps(m, tcon);
|
|
|
|
if (tcon->need_reconnect)
|
|
seq_puts(m, "\tDISCONNECTED ");
|
|
seq_putc(m, '\n');
|
|
}
|
|
|
|
static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
struct list_head *tmp1, *tmp2, *tmp3;
|
|
struct mid_q_entry *mid_entry;
|
|
struct TCP_Server_Info *server;
|
|
struct cifs_ses *ses;
|
|
struct cifs_tcon *tcon;
|
|
int i, j;
|
|
|
|
seq_puts(m,
|
|
"Display Internal CIFS Data Structures for Debugging\n"
|
|
"---------------------------------------------------\n");
|
|
seq_printf(m, "CIFS Version %s\n", CIFS_VERSION);
|
|
seq_printf(m, "Features:");
|
|
#ifdef CONFIG_CIFS_DFS_UPCALL
|
|
seq_printf(m, " dfs");
|
|
#endif
|
|
#ifdef CONFIG_CIFS_FSCACHE
|
|
seq_printf(m, " fscache");
|
|
#endif
|
|
#ifdef CONFIG_CIFS_WEAK_PW_HASH
|
|
seq_printf(m, " lanman");
|
|
#endif
|
|
#ifdef CONFIG_CIFS_POSIX
|
|
seq_printf(m, " posix");
|
|
#endif
|
|
#ifdef CONFIG_CIFS_UPCALL
|
|
seq_printf(m, " spnego");
|
|
#endif
|
|
#ifdef CONFIG_CIFS_XATTR
|
|
seq_printf(m, " xattr");
|
|
#endif
|
|
#ifdef CONFIG_CIFS_ACL
|
|
seq_printf(m, " acl");
|
|
#endif
|
|
seq_putc(m, '\n');
|
|
seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
|
|
seq_printf(m, "Servers:");
|
|
|
|
i = 0;
|
|
spin_lock(&cifs_tcp_ses_lock);
|
|
list_for_each(tmp1, &cifs_tcp_ses_list) {
|
|
server = list_entry(tmp1, struct TCP_Server_Info,
|
|
tcp_ses_list);
|
|
|
|
#ifdef CONFIG_CIFS_SMB_DIRECT
|
|
if (!server->rdma)
|
|
goto skip_rdma;
|
|
|
|
seq_printf(m, "\nSMBDirect (in hex) protocol version: %x "
|
|
"transport status: %x",
|
|
server->smbd_conn->protocol,
|
|
server->smbd_conn->transport_status);
|
|
seq_printf(m, "\nConn receive_credit_max: %x "
|
|
"send_credit_target: %x max_send_size: %x",
|
|
server->smbd_conn->receive_credit_max,
|
|
server->smbd_conn->send_credit_target,
|
|
server->smbd_conn->max_send_size);
|
|
seq_printf(m, "\nConn max_fragmented_recv_size: %x "
|
|
"max_fragmented_send_size: %x max_receive_size:%x",
|
|
server->smbd_conn->max_fragmented_recv_size,
|
|
server->smbd_conn->max_fragmented_send_size,
|
|
server->smbd_conn->max_receive_size);
|
|
seq_printf(m, "\nConn keep_alive_interval: %x "
|
|
"max_readwrite_size: %x rdma_readwrite_threshold: %x",
|
|
server->smbd_conn->keep_alive_interval,
|
|
server->smbd_conn->max_readwrite_size,
|
|
server->smbd_conn->rdma_readwrite_threshold);
|
|
seq_printf(m, "\nDebug count_get_receive_buffer: %x "
|
|
"count_put_receive_buffer: %x count_send_empty: %x",
|
|
server->smbd_conn->count_get_receive_buffer,
|
|
server->smbd_conn->count_put_receive_buffer,
|
|
server->smbd_conn->count_send_empty);
|
|
seq_printf(m, "\nRead Queue count_reassembly_queue: %x "
|
|
"count_enqueue_reassembly_queue: %x "
|
|
"count_dequeue_reassembly_queue: %x "
|
|
"fragment_reassembly_remaining: %x "
|
|
"reassembly_data_length: %x "
|
|
"reassembly_queue_length: %x",
|
|
server->smbd_conn->count_reassembly_queue,
|
|
server->smbd_conn->count_enqueue_reassembly_queue,
|
|
server->smbd_conn->count_dequeue_reassembly_queue,
|
|
server->smbd_conn->fragment_reassembly_remaining,
|
|
server->smbd_conn->reassembly_data_length,
|
|
server->smbd_conn->reassembly_queue_length);
|
|
seq_printf(m, "\nCurrent Credits send_credits: %x "
|
|
"receive_credits: %x receive_credit_target: %x",
|
|
atomic_read(&server->smbd_conn->send_credits),
|
|
atomic_read(&server->smbd_conn->receive_credits),
|
|
server->smbd_conn->receive_credit_target);
|
|
seq_printf(m, "\nPending send_pending: %x send_payload_pending:"
|
|
" %x smbd_send_pending: %x smbd_recv_pending: %x",
|
|
atomic_read(&server->smbd_conn->send_pending),
|
|
atomic_read(&server->smbd_conn->send_payload_pending),
|
|
server->smbd_conn->smbd_send_pending,
|
|
server->smbd_conn->smbd_recv_pending);
|
|
seq_printf(m, "\nReceive buffers count_receive_queue: %x "
|
|
"count_empty_packet_queue: %x",
|
|
server->smbd_conn->count_receive_queue,
|
|
server->smbd_conn->count_empty_packet_queue);
|
|
seq_printf(m, "\nMR responder_resources: %x "
|
|
"max_frmr_depth: %x mr_type: %x",
|
|
server->smbd_conn->responder_resources,
|
|
server->smbd_conn->max_frmr_depth,
|
|
server->smbd_conn->mr_type);
|
|
seq_printf(m, "\nMR mr_ready_count: %x mr_used_count: %x",
|
|
atomic_read(&server->smbd_conn->mr_ready_count),
|
|
atomic_read(&server->smbd_conn->mr_used_count));
|
|
skip_rdma:
|
|
#endif
|
|
seq_printf(m, "\nNumber of credits: %d Dialect 0x%x",
|
|
server->credits, server->dialect);
|
|
if (server->sign)
|
|
seq_printf(m, " signed");
|
|
i++;
|
|
list_for_each(tmp2, &server->smb_ses_list) {
|
|
ses = list_entry(tmp2, struct cifs_ses,
|
|
smb_ses_list);
|
|
if ((ses->serverDomain == NULL) ||
|
|
(ses->serverOS == NULL) ||
|
|
(ses->serverNOS == NULL)) {
|
|
seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d\t",
|
|
i, ses->serverName, ses->ses_count,
|
|
ses->capabilities, ses->status);
|
|
if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST)
|
|
seq_printf(m, "Guest\t");
|
|
else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL)
|
|
seq_printf(m, "Anonymous\t");
|
|
} else {
|
|
seq_printf(m,
|
|
"\n%d) Name: %s Domain: %s Uses: %d OS:"
|
|
" %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB"
|
|
" session status: %d\t",
|
|
i, ses->serverName, ses->serverDomain,
|
|
ses->ses_count, ses->serverOS, ses->serverNOS,
|
|
ses->capabilities, ses->status);
|
|
}
|
|
if (server->rdma)
|
|
seq_printf(m, "RDMA\n\t");
|
|
seq_printf(m, "TCP status: %d\n\tLocal Users To "
|
|
"Server: %d SecMode: 0x%x Req On Wire: %d",
|
|
server->tcpStatus, server->srv_count,
|
|
server->sec_mode, in_flight(server));
|
|
|
|
#ifdef CONFIG_CIFS_STATS2
|
|
seq_printf(m, " In Send: %d In MaxReq Wait: %d",
|
|
atomic_read(&server->in_send),
|
|
atomic_read(&server->num_waiters));
|
|
#endif
|
|
|
|
seq_puts(m, "\n\tShares:");
|
|
j = 0;
|
|
|
|
seq_printf(m, "\n\t%d) IPC: ", j);
|
|
if (ses->tcon_ipc)
|
|
cifs_debug_tcon(m, ses->tcon_ipc);
|
|
else
|
|
seq_puts(m, "none\n");
|
|
|
|
list_for_each(tmp3, &ses->tcon_list) {
|
|
tcon = list_entry(tmp3, struct cifs_tcon,
|
|
tcon_list);
|
|
++j;
|
|
seq_printf(m, "\n\t%d) ", j);
|
|
cifs_debug_tcon(m, tcon);
|
|
}
|
|
|
|
seq_puts(m, "\n\tMIDs:\n");
|
|
|
|
spin_lock(&GlobalMid_Lock);
|
|
list_for_each(tmp3, &server->pending_mid_q) {
|
|
mid_entry = list_entry(tmp3, struct mid_q_entry,
|
|
qhead);
|
|
seq_printf(m, "\tState: %d com: %d pid:"
|
|
" %d cbdata: %p mid %llu\n",
|
|
mid_entry->mid_state,
|
|
le16_to_cpu(mid_entry->command),
|
|
mid_entry->pid,
|
|
mid_entry->callback_data,
|
|
mid_entry->mid);
|
|
}
|
|
spin_unlock(&GlobalMid_Lock);
|
|
}
|
|
}
|
|
spin_unlock(&cifs_tcp_ses_lock);
|
|
seq_putc(m, '\n');
|
|
|
|
/* BB add code to dump additional info such as TCP session info now */
|
|
return 0;
|
|
}
|
|
|
|
static int cifs_debug_data_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, cifs_debug_data_proc_show, NULL);
|
|
}
|
|
|
|
static const struct file_operations cifs_debug_data_proc_fops = {
|
|
.open = cifs_debug_data_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
#ifdef CONFIG_CIFS_STATS
|
|
static ssize_t cifs_stats_proc_write(struct file *file,
|
|
const char __user *buffer, size_t count, loff_t *ppos)
|
|
{
|
|
bool bv;
|
|
int rc;
|
|
struct list_head *tmp1, *tmp2, *tmp3;
|
|
struct TCP_Server_Info *server;
|
|
struct cifs_ses *ses;
|
|
struct cifs_tcon *tcon;
|
|
|
|
rc = kstrtobool_from_user(buffer, count, &bv);
|
|
if (rc == 0) {
|
|
#ifdef CONFIG_CIFS_STATS2
|
|
atomic_set(&totBufAllocCount, 0);
|
|
atomic_set(&totSmBufAllocCount, 0);
|
|
#endif /* CONFIG_CIFS_STATS2 */
|
|
spin_lock(&cifs_tcp_ses_lock);
|
|
list_for_each(tmp1, &cifs_tcp_ses_list) {
|
|
server = list_entry(tmp1, struct TCP_Server_Info,
|
|
tcp_ses_list);
|
|
list_for_each(tmp2, &server->smb_ses_list) {
|
|
ses = list_entry(tmp2, struct cifs_ses,
|
|
smb_ses_list);
|
|
list_for_each(tmp3, &ses->tcon_list) {
|
|
tcon = list_entry(tmp3,
|
|
struct cifs_tcon,
|
|
tcon_list);
|
|
atomic_set(&tcon->num_smbs_sent, 0);
|
|
if (server->ops->clear_stats)
|
|
server->ops->clear_stats(tcon);
|
|
}
|
|
}
|
|
}
|
|
spin_unlock(&cifs_tcp_ses_lock);
|
|
} else {
|
|
return rc;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static int cifs_stats_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
int i;
|
|
struct list_head *tmp1, *tmp2, *tmp3;
|
|
struct TCP_Server_Info *server;
|
|
struct cifs_ses *ses;
|
|
struct cifs_tcon *tcon;
|
|
|
|
seq_printf(m,
|
|
"Resources in use\nCIFS Session: %d\n",
|
|
sesInfoAllocCount.counter);
|
|
seq_printf(m, "Share (unique mount targets): %d\n",
|
|
tconInfoAllocCount.counter);
|
|
seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n",
|
|
bufAllocCount.counter,
|
|
cifs_min_rcv + tcpSesAllocCount.counter);
|
|
seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n",
|
|
smBufAllocCount.counter, cifs_min_small);
|
|
#ifdef CONFIG_CIFS_STATS2
|
|
seq_printf(m, "Total Large %d Small %d Allocations\n",
|
|
atomic_read(&totBufAllocCount),
|
|
atomic_read(&totSmBufAllocCount));
|
|
#endif /* CONFIG_CIFS_STATS2 */
|
|
|
|
seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
|
|
seq_printf(m,
|
|
"\n%d session %d share reconnects\n",
|
|
tcpSesReconnectCount.counter, tconInfoReconnectCount.counter);
|
|
|
|
seq_printf(m,
|
|
"Total vfs operations: %d maximum at one time: %d\n",
|
|
GlobalCurrentXid, GlobalMaxActiveXid);
|
|
|
|
i = 0;
|
|
spin_lock(&cifs_tcp_ses_lock);
|
|
list_for_each(tmp1, &cifs_tcp_ses_list) {
|
|
server = list_entry(tmp1, struct TCP_Server_Info,
|
|
tcp_ses_list);
|
|
list_for_each(tmp2, &server->smb_ses_list) {
|
|
ses = list_entry(tmp2, struct cifs_ses,
|
|
smb_ses_list);
|
|
list_for_each(tmp3, &ses->tcon_list) {
|
|
tcon = list_entry(tmp3,
|
|
struct cifs_tcon,
|
|
tcon_list);
|
|
i++;
|
|
seq_printf(m, "\n%d) %s", i, tcon->treeName);
|
|
if (tcon->need_reconnect)
|
|
seq_puts(m, "\tDISCONNECTED ");
|
|
seq_printf(m, "\nSMBs: %d",
|
|
atomic_read(&tcon->num_smbs_sent));
|
|
if (server->ops->print_stats)
|
|
server->ops->print_stats(m, tcon);
|
|
}
|
|
}
|
|
}
|
|
spin_unlock(&cifs_tcp_ses_lock);
|
|
|
|
seq_putc(m, '\n');
|
|
return 0;
|
|
}
|
|
|
|
static int cifs_stats_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, cifs_stats_proc_show, NULL);
|
|
}
|
|
|
|
static const struct file_operations cifs_stats_proc_fops = {
|
|
.open = cifs_stats_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = cifs_stats_proc_write,
|
|
};
|
|
#endif /* STATS */
|
|
|
|
#ifdef CONFIG_CIFS_SMB_DIRECT
|
|
#define PROC_FILE_DEFINE(name) \
|
|
static ssize_t name##_write(struct file *file, const char __user *buffer, \
|
|
size_t count, loff_t *ppos) \
|
|
{ \
|
|
int rc; \
|
|
rc = kstrtoint_from_user(buffer, count, 10, & name); \
|
|
if (rc) \
|
|
return rc; \
|
|
return count; \
|
|
} \
|
|
static int name##_proc_show(struct seq_file *m, void *v) \
|
|
{ \
|
|
seq_printf(m, "%d\n", name ); \
|
|
return 0; \
|
|
} \
|
|
static int name##_open(struct inode *inode, struct file *file) \
|
|
{ \
|
|
return single_open(file, name##_proc_show, NULL); \
|
|
} \
|
|
\
|
|
static const struct file_operations cifs_##name##_proc_fops = { \
|
|
.open = name##_open, \
|
|
.read = seq_read, \
|
|
.llseek = seq_lseek, \
|
|
.release = single_release, \
|
|
.write = name##_write, \
|
|
}
|
|
|
|
PROC_FILE_DEFINE(rdma_readwrite_threshold);
|
|
PROC_FILE_DEFINE(smbd_max_frmr_depth);
|
|
PROC_FILE_DEFINE(smbd_keep_alive_interval);
|
|
PROC_FILE_DEFINE(smbd_max_receive_size);
|
|
PROC_FILE_DEFINE(smbd_max_fragmented_recv_size);
|
|
PROC_FILE_DEFINE(smbd_max_send_size);
|
|
PROC_FILE_DEFINE(smbd_send_credit_target);
|
|
PROC_FILE_DEFINE(smbd_receive_credit_max);
|
|
#endif
|
|
|
|
static struct proc_dir_entry *proc_fs_cifs;
|
|
static const struct file_operations cifsFYI_proc_fops;
|
|
static const struct file_operations cifs_lookup_cache_proc_fops;
|
|
static const struct file_operations traceSMB_proc_fops;
|
|
static const struct file_operations cifs_security_flags_proc_fops;
|
|
static const struct file_operations cifs_linux_ext_proc_fops;
|
|
|
|
void
|
|
cifs_proc_init(void)
|
|
{
|
|
proc_fs_cifs = proc_mkdir("fs/cifs", NULL);
|
|
if (proc_fs_cifs == NULL)
|
|
return;
|
|
|
|
proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops);
|
|
|
|
#ifdef CONFIG_CIFS_STATS
|
|
proc_create("Stats", 0, proc_fs_cifs, &cifs_stats_proc_fops);
|
|
#endif /* STATS */
|
|
proc_create("cifsFYI", 0, proc_fs_cifs, &cifsFYI_proc_fops);
|
|
proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops);
|
|
proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs,
|
|
&cifs_linux_ext_proc_fops);
|
|
proc_create("SecurityFlags", 0, proc_fs_cifs,
|
|
&cifs_security_flags_proc_fops);
|
|
proc_create("LookupCacheEnabled", 0, proc_fs_cifs,
|
|
&cifs_lookup_cache_proc_fops);
|
|
#ifdef CONFIG_CIFS_SMB_DIRECT
|
|
proc_create("rdma_readwrite_threshold", 0, proc_fs_cifs,
|
|
&cifs_rdma_readwrite_threshold_proc_fops);
|
|
proc_create("smbd_max_frmr_depth", 0, proc_fs_cifs,
|
|
&cifs_smbd_max_frmr_depth_proc_fops);
|
|
proc_create("smbd_keep_alive_interval", 0, proc_fs_cifs,
|
|
&cifs_smbd_keep_alive_interval_proc_fops);
|
|
proc_create("smbd_max_receive_size", 0, proc_fs_cifs,
|
|
&cifs_smbd_max_receive_size_proc_fops);
|
|
proc_create("smbd_max_fragmented_recv_size", 0, proc_fs_cifs,
|
|
&cifs_smbd_max_fragmented_recv_size_proc_fops);
|
|
proc_create("smbd_max_send_size", 0, proc_fs_cifs,
|
|
&cifs_smbd_max_send_size_proc_fops);
|
|
proc_create("smbd_send_credit_target", 0, proc_fs_cifs,
|
|
&cifs_smbd_send_credit_target_proc_fops);
|
|
proc_create("smbd_receive_credit_max", 0, proc_fs_cifs,
|
|
&cifs_smbd_receive_credit_max_proc_fops);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
cifs_proc_clean(void)
|
|
{
|
|
if (proc_fs_cifs == NULL)
|
|
return;
|
|
|
|
remove_proc_entry("DebugData", proc_fs_cifs);
|
|
remove_proc_entry("cifsFYI", proc_fs_cifs);
|
|
remove_proc_entry("traceSMB", proc_fs_cifs);
|
|
#ifdef CONFIG_CIFS_STATS
|
|
remove_proc_entry("Stats", proc_fs_cifs);
|
|
#endif
|
|
remove_proc_entry("SecurityFlags", proc_fs_cifs);
|
|
remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
|
|
remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
|
|
#ifdef CONFIG_CIFS_SMB_DIRECT
|
|
remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs);
|
|
remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs);
|
|
remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs);
|
|
remove_proc_entry("smbd_max_receive_size", proc_fs_cifs);
|
|
remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs);
|
|
remove_proc_entry("smbd_max_send_size", proc_fs_cifs);
|
|
remove_proc_entry("smbd_send_credit_target", proc_fs_cifs);
|
|
remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs);
|
|
#endif
|
|
remove_proc_entry("fs/cifs", NULL);
|
|
}
|
|
|
|
static int cifsFYI_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
seq_printf(m, "%d\n", cifsFYI);
|
|
return 0;
|
|
}
|
|
|
|
static int cifsFYI_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, cifsFYI_proc_show, NULL);
|
|
}
|
|
|
|
static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char c[2] = { '\0' };
|
|
bool bv;
|
|
int rc;
|
|
|
|
rc = get_user(c[0], buffer);
|
|
if (rc)
|
|
return rc;
|
|
if (strtobool(c, &bv) == 0)
|
|
cifsFYI = bv;
|
|
else if ((c[0] > '1') && (c[0] <= '9'))
|
|
cifsFYI = (int) (c[0] - '0'); /* see cifs_debug.h for meanings */
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations cifsFYI_proc_fops = {
|
|
.open = cifsFYI_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = cifsFYI_proc_write,
|
|
};
|
|
|
|
static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
seq_printf(m, "%d\n", linuxExtEnabled);
|
|
return 0;
|
|
}
|
|
|
|
static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, cifs_linux_ext_proc_show, NULL);
|
|
}
|
|
|
|
static ssize_t cifs_linux_ext_proc_write(struct file *file,
|
|
const char __user *buffer, size_t count, loff_t *ppos)
|
|
{
|
|
int rc;
|
|
|
|
rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations cifs_linux_ext_proc_fops = {
|
|
.open = cifs_linux_ext_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = cifs_linux_ext_proc_write,
|
|
};
|
|
|
|
static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
seq_printf(m, "%d\n", lookupCacheEnabled);
|
|
return 0;
|
|
}
|
|
|
|
static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, cifs_lookup_cache_proc_show, NULL);
|
|
}
|
|
|
|
static ssize_t cifs_lookup_cache_proc_write(struct file *file,
|
|
const char __user *buffer, size_t count, loff_t *ppos)
|
|
{
|
|
int rc;
|
|
|
|
rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations cifs_lookup_cache_proc_fops = {
|
|
.open = cifs_lookup_cache_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = cifs_lookup_cache_proc_write,
|
|
};
|
|
|
|
static int traceSMB_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
seq_printf(m, "%d\n", traceSMB);
|
|
return 0;
|
|
}
|
|
|
|
static int traceSMB_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, traceSMB_proc_show, NULL);
|
|
}
|
|
|
|
static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
int rc;
|
|
|
|
rc = kstrtobool_from_user(buffer, count, &traceSMB);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations traceSMB_proc_fops = {
|
|
.open = traceSMB_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = traceSMB_proc_write,
|
|
};
|
|
|
|
static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
seq_printf(m, "0x%x\n", global_secflags);
|
|
return 0;
|
|
}
|
|
|
|
static int cifs_security_flags_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, cifs_security_flags_proc_show, NULL);
|
|
}
|
|
|
|
/*
|
|
* Ensure that if someone sets a MUST flag, that we disable all other MAY
|
|
* flags except for the ones corresponding to the given MUST flag. If there are
|
|
* multiple MUST flags, then try to prefer more secure ones.
|
|
*/
|
|
static void
|
|
cifs_security_flags_handle_must_flags(unsigned int *flags)
|
|
{
|
|
unsigned int signflags = *flags & CIFSSEC_MUST_SIGN;
|
|
|
|
if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5)
|
|
*flags = CIFSSEC_MUST_KRB5;
|
|
else if ((*flags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP)
|
|
*flags = CIFSSEC_MUST_NTLMSSP;
|
|
else if ((*flags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2)
|
|
*flags = CIFSSEC_MUST_NTLMV2;
|
|
else if ((*flags & CIFSSEC_MUST_NTLM) == CIFSSEC_MUST_NTLM)
|
|
*flags = CIFSSEC_MUST_NTLM;
|
|
else if (CIFSSEC_MUST_LANMAN &&
|
|
(*flags & CIFSSEC_MUST_LANMAN) == CIFSSEC_MUST_LANMAN)
|
|
*flags = CIFSSEC_MUST_LANMAN;
|
|
else if (CIFSSEC_MUST_PLNTXT &&
|
|
(*flags & CIFSSEC_MUST_PLNTXT) == CIFSSEC_MUST_PLNTXT)
|
|
*flags = CIFSSEC_MUST_PLNTXT;
|
|
|
|
*flags |= signflags;
|
|
}
|
|
|
|
static ssize_t cifs_security_flags_proc_write(struct file *file,
|
|
const char __user *buffer, size_t count, loff_t *ppos)
|
|
{
|
|
int rc;
|
|
unsigned int flags;
|
|
char flags_string[12];
|
|
bool bv;
|
|
|
|
if ((count < 1) || (count > 11))
|
|
return -EINVAL;
|
|
|
|
memset(flags_string, 0, 12);
|
|
|
|
if (copy_from_user(flags_string, buffer, count))
|
|
return -EFAULT;
|
|
|
|
if (count < 3) {
|
|
/* single char or single char followed by null */
|
|
if (strtobool(flags_string, &bv) == 0) {
|
|
global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF;
|
|
return count;
|
|
} else if (!isdigit(flags_string[0])) {
|
|
cifs_dbg(VFS, "Invalid SecurityFlags: %s\n",
|
|
flags_string);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
/* else we have a number */
|
|
rc = kstrtouint(flags_string, 0, &flags);
|
|
if (rc) {
|
|
cifs_dbg(VFS, "Invalid SecurityFlags: %s\n",
|
|
flags_string);
|
|
return rc;
|
|
}
|
|
|
|
cifs_dbg(FYI, "sec flags 0x%x\n", flags);
|
|
|
|
if (flags == 0) {
|
|
cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", flags_string);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (flags & ~CIFSSEC_MASK) {
|
|
cifs_dbg(VFS, "Unsupported security flags: 0x%x\n",
|
|
flags & ~CIFSSEC_MASK);
|
|
return -EINVAL;
|
|
}
|
|
|
|
cifs_security_flags_handle_must_flags(&flags);
|
|
|
|
/* flags look ok - update the global security flags for cifs module */
|
|
global_secflags = flags;
|
|
if (global_secflags & CIFSSEC_MUST_SIGN) {
|
|
/* requiring signing implies signing is allowed */
|
|
global_secflags |= CIFSSEC_MAY_SIGN;
|
|
cifs_dbg(FYI, "packet signing now required\n");
|
|
} else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) {
|
|
cifs_dbg(FYI, "packet signing disabled\n");
|
|
}
|
|
/* BB should we turn on MAY flags for other MUST options? */
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations cifs_security_flags_proc_fops = {
|
|
.open = cifs_security_flags_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = cifs_security_flags_proc_write,
|
|
};
|
|
#else
|
|
inline void cifs_proc_init(void)
|
|
{
|
|
}
|
|
|
|
inline void cifs_proc_clean(void)
|
|
{
|
|
}
|
|
#endif /* PROC_FS */
|