From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/fs/cifs/cifs_debug.c | 302 +++++++++++++++++++++++++++++++++++--------------
1 files changed, 214 insertions(+), 88 deletions(-)
diff --git a/kernel/fs/cifs/cifs_debug.c b/kernel/fs/cifs/cifs_debug.c
index a85aeff..53588d7 100644
--- a/kernel/fs/cifs/cifs_debug.c
+++ b/kernel/fs/cifs/cifs_debug.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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>
@@ -30,6 +17,9 @@
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifsfs.h"
+#ifdef CONFIG_CIFS_DFS_UPCALL
+#include "dfs_cache.h"
+#endif
#ifdef CONFIG_CIFS_SMB_DIRECT
#include "smbdirect.h"
#endif
@@ -112,7 +102,12 @@
seq_puts(m, " type: CDROM ");
else
seq_printf(m, " type: %d ", dev_type);
- if (tcon->seal)
+
+ seq_printf(m, "Serial Number: 0x%x", tcon->vol_serial_number);
+
+ if ((tcon->seal) ||
+ (tcon->ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) ||
+ (tcon->share_flags & SHI1005_FLAGS_ENCRYPT_DATA))
seq_printf(m, " Encrypted");
if (tcon->nocase)
seq_printf(m, " nocase");
@@ -127,12 +122,33 @@
}
static void
+cifs_dump_channel(struct seq_file *m, int i, struct cifs_chan *chan)
+{
+ struct TCP_Server_Info *server = chan->server;
+
+ seq_printf(m, "\t\tChannel %d Number of credits: %d Dialect 0x%x "
+ "TCP status: %d Instance: %d Local Users To Server: %d "
+ "SecMode: 0x%x Req On Wire: %d In Send: %d "
+ "In MaxReq Wait: %d\n",
+ i+1,
+ server->credits,
+ server->dialect,
+ server->tcpStatus,
+ server->reconnect_instance,
+ server->srv_count,
+ server->sec_mode,
+ in_flight(server),
+ atomic_read(&server->in_send),
+ atomic_read(&server->num_waiters));
+}
+
+static void
cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface)
{
struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr;
struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr;
- seq_printf(m, "\t\tSpeed: %zu bps\n", iface->speed);
+ seq_printf(m, "\tSpeed: %zu bps\n", iface->speed);
seq_puts(m, "\t\tCapabilities: ");
if (iface->rdma_capable)
seq_puts(m, "rdma ");
@@ -143,6 +159,58 @@
seq_printf(m, "\t\tIPv4: %pI4\n", &ipv4->sin_addr);
else if (iface->sockaddr.ss_family == AF_INET6)
seq_printf(m, "\t\tIPv6: %pI6\n", &ipv6->sin6_addr);
+}
+
+static int cifs_debug_files_proc_show(struct seq_file *m, void *v)
+{
+ struct list_head *stmp, *tmp, *tmp1, *tmp2;
+ struct TCP_Server_Info *server;
+ struct cifs_ses *ses;
+ struct cifs_tcon *tcon;
+ struct cifsFileInfo *cfile;
+
+ seq_puts(m, "# Version:1\n");
+ seq_puts(m, "# Format:\n");
+ seq_puts(m, "# <tree id> <persistent fid> <flags> <count> <pid> <uid>");
+#ifdef CONFIG_CIFS_DEBUG2
+ seq_printf(m, " <filename> <mid>\n");
+#else
+ seq_printf(m, " <filename>\n");
+#endif /* CIFS_DEBUG2 */
+ 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);
+ spin_lock(&tcon->open_file_lock);
+ list_for_each(tmp2, &tcon->openFileList) {
+ cfile = list_entry(tmp2, struct cifsFileInfo,
+ tlist);
+ seq_printf(m,
+ "0x%x 0x%llx 0x%x %d %d %d %s",
+ tcon->tid,
+ cfile->fid.persistent_fid,
+ cfile->f_flags,
+ cfile->count,
+ cfile->pid,
+ from_kuid(&init_user_ns, cfile->uid),
+ cfile->dentry->d_name.name);
+#ifdef CONFIG_CIFS_DEBUG2
+ seq_printf(m, " 0x%llx\n", cfile->fid.mid);
+#else
+ seq_printf(m, "\n");
+#endif /* CIFS_DEBUG2 */
+ }
+ spin_unlock(&tcon->open_file_lock);
+ }
+ }
+ }
+ spin_unlock(&cifs_tcp_ses_lock);
+ seq_putc(m, '\n');
+ return 0;
}
static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
@@ -193,10 +261,9 @@
#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, "CIFSMaxBufSize: %d\n", CIFSMaxBufSize);
seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
seq_printf(m, "Servers:");
@@ -256,12 +323,8 @@
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, "\nPending send_pending: %x ",
+ atomic_read(&server->smbd_conn->send_pending));
seq_printf(m, "\nReceive buffers count_receive_queue: %x "
"count_empty_packet_queue: %x",
server->smbd_conn->count_receive_queue,
@@ -278,6 +341,12 @@
#endif
seq_printf(m, "\nNumber of credits: %d Dialect 0x%x",
server->credits, server->dialect);
+ if (server->compress_algorithm == SMB3_COMPRESS_LZNT1)
+ seq_printf(m, " COMPRESS_LZNT1");
+ else if (server->compress_algorithm == SMB3_COMPRESS_LZ77)
+ seq_printf(m, " COMPRESS_LZ77");
+ else if (server->compress_algorithm == SMB3_COMPRESS_LZ77_HUFF)
+ seq_printf(m, " COMPRESS_LZ77_HUFF");
if (server->sign)
seq_printf(m, " signed");
if (server->posix_ext_supported)
@@ -290,7 +359,7 @@
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",
+ seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d ",
i, ses->serverName, ses->ses_count,
ses->capabilities, ses->status);
if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST)
@@ -301,25 +370,47 @@
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",
+ " session status: %d ",
i, ses->serverName, ses->serverDomain,
ses->ses_count, ses->serverOS, ses->serverNOS,
ses->capabilities, ses->status);
}
+
+ seq_printf(m,"Security type: %s\n",
+ get_security_type_str(server->ops->select_sectype(server, ses->sectype)));
+
if (server->rdma)
seq_printf(m, "RDMA\n\t");
- seq_printf(m, "TCP status: %d\n\tLocal Users To "
+ seq_printf(m, "TCP status: %d Instance: %d\n\tLocal Users To "
"Server: %d SecMode: 0x%x Req On Wire: %d",
- server->tcpStatus, server->srv_count,
+ server->tcpStatus,
+ server->reconnect_instance,
+ 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:");
+ /* dump session id helpful for use with network trace */
+ seq_printf(m, " SessionId: 0x%llx", ses->Suid);
+ if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)
+ seq_puts(m, " encrypted");
+ if (ses->sign)
+ seq_puts(m, " signed");
+
+ seq_printf(m, "\n\tUser: %d Cred User: %d",
+ from_kuid(&init_user_ns, ses->linux_uid),
+ from_kuid(&init_user_ns, ses->cred_uid));
+
+ if (ses->chan_count > 1) {
+ seq_printf(m, "\n\n\tExtra Channels: %zu\n",
+ ses->chan_count-1);
+ for (j = 1; j < ses->chan_count; j++)
+ cifs_dump_channel(m, j, &ses->chans[j]);
+ }
+
+ seq_puts(m, "\n\n\tShares:");
j = 0;
seq_printf(m, "\n\t%d) IPC: ", j);
@@ -357,8 +448,13 @@
seq_printf(m, "\n\tServer interfaces: %zu\n",
ses->iface_count);
for (j = 0; j < ses->iface_count; j++) {
- seq_printf(m, "\t%d)\n", j);
- cifs_dump_iface(m, &ses->iface_list[j]);
+ struct cifs_server_iface *iface;
+
+ iface = &ses->iface_list[j];
+ seq_printf(m, "\t%d)", j);
+ cifs_dump_iface(m, iface);
+ if (is_ses_using_iface(ses, iface))
+ seq_puts(m, "\t\t[CONNECTED]\n");
}
spin_unlock(&ses->iface_lock);
}
@@ -399,9 +495,15 @@
list_for_each(tmp1, &cifs_tcp_ses_list) {
server = list_entry(tmp1, struct TCP_Server_Info,
tcp_ses_list);
+ server->max_in_flight = 0;
#ifdef CONFIG_CIFS_STATS2
- for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++)
+ for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
+ atomic_set(&server->num_cmds[i], 0);
atomic_set(&server->smb2slowcmd[i], 0);
+ server->time_per_cmd[i] = 0;
+ server->slowest_cmd[i] = 0;
+ server->fastest_cmd[0] = 0;
+ }
#endif /* CONFIG_CIFS_STATS2 */
list_for_each(tmp2, &server->smb_ses_list) {
ses = list_entry(tmp2, struct cifs_ses,
@@ -468,10 +570,21 @@
list_for_each(tmp1, &cifs_tcp_ses_list) {
server = list_entry(tmp1, struct TCP_Server_Info,
tcp_ses_list);
+ seq_printf(m, "\nMax requests in flight: %d", server->max_in_flight);
#ifdef CONFIG_CIFS_STATS2
+ seq_puts(m, "\nTotal time spent processing by command. Time ");
+ seq_printf(m, "units are jiffies (%d per second)\n", HZ);
+ seq_puts(m, " SMB3 CMD\tNumber\tTotal Time\tFastest\tSlowest\n");
+ seq_puts(m, " --------\t------\t----------\t-------\t-------\n");
+ for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++)
+ seq_printf(m, " %d\t\t%d\t%llu\t\t%u\t%u\n", j,
+ atomic_read(&server->num_cmds[j]),
+ server->time_per_cmd[j],
+ server->fastest_cmd[j],
+ server->slowest_cmd[j]);
for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++)
if (atomic_read(&server->smb2slowcmd[j]))
- seq_printf(m, "%d slow responses from %s for command %d\n",
+ seq_printf(m, " %d slow responses from %s for command %d\n",
atomic_read(&server->smb2slowcmd[j]),
server->hostname, j);
#endif /* STATS2 */
@@ -504,12 +617,12 @@
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,
+static const struct proc_ops cifs_stats_proc_ops = {
+ .proc_open = cifs_stats_proc_open,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = single_release,
+ .proc_write = cifs_stats_proc_write,
};
#ifdef CONFIG_CIFS_SMB_DIRECT
@@ -533,12 +646,12 @@
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, \
+static const struct proc_ops cifs_##name##_proc_fops = { \
+ .proc_open = name##_open, \
+ .proc_read = seq_read, \
+ .proc_lseek = seq_lseek, \
+ .proc_release = single_release, \
+ .proc_write = name##_write, \
}
PROC_FILE_DEFINE(rdma_readwrite_threshold);
@@ -552,11 +665,11 @@
#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;
+static const struct proc_ops cifsFYI_proc_ops;
+static const struct proc_ops cifs_lookup_cache_proc_ops;
+static const struct proc_ops traceSMB_proc_ops;
+static const struct proc_ops cifs_security_flags_proc_ops;
+static const struct proc_ops cifs_linux_ext_proc_ops;
void
cifs_proc_init(void)
@@ -568,15 +681,23 @@
proc_create_single("DebugData", 0, proc_fs_cifs,
cifs_debug_data_proc_show);
- proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_fops);
- proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_fops);
- proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_fops);
+ proc_create_single("open_files", 0400, proc_fs_cifs,
+ cifs_debug_files_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);
proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs,
- &cifs_linux_ext_proc_fops);
+ &cifs_linux_ext_proc_ops);
proc_create("SecurityFlags", 0644, proc_fs_cifs,
- &cifs_security_flags_proc_fops);
+ &cifs_security_flags_proc_ops);
proc_create("LookupCacheEnabled", 0644, proc_fs_cifs,
- &cifs_lookup_cache_proc_fops);
+ &cifs_lookup_cache_proc_ops);
+
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ proc_create("dfscache", 0644, proc_fs_cifs, &dfscache_proc_ops);
+#endif
+
#ifdef CONFIG_CIFS_SMB_DIRECT
proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs,
&cifs_rdma_readwrite_threshold_proc_fops);
@@ -604,12 +725,17 @@
return;
remove_proc_entry("DebugData", proc_fs_cifs);
+ remove_proc_entry("open_files", proc_fs_cifs);
remove_proc_entry("cifsFYI", proc_fs_cifs);
remove_proc_entry("traceSMB", proc_fs_cifs);
remove_proc_entry("Stats", proc_fs_cifs);
remove_proc_entry("SecurityFlags", proc_fs_cifs);
remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
+
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ remove_proc_entry("dfscache", proc_fs_cifs);
+#endif
#ifdef CONFIG_CIFS_SMB_DIRECT
remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs);
remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs);
@@ -654,12 +780,12 @@
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 const struct proc_ops cifsFYI_proc_ops = {
+ .proc_open = cifsFYI_proc_open,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = single_release,
+ .proc_write = cifsFYI_proc_write,
};
static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
@@ -685,12 +811,12 @@
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 const struct proc_ops cifs_linux_ext_proc_ops = {
+ .proc_open = cifs_linux_ext_proc_open,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = single_release,
+ .proc_write = cifs_linux_ext_proc_write,
};
static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v)
@@ -716,12 +842,12 @@
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 const struct proc_ops cifs_lookup_cache_proc_ops = {
+ .proc_open = cifs_lookup_cache_proc_open,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = single_release,
+ .proc_write = cifs_lookup_cache_proc_write,
};
static int traceSMB_proc_show(struct seq_file *m, void *v)
@@ -747,12 +873,12 @@
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 const struct proc_ops traceSMB_proc_ops = {
+ .proc_open = traceSMB_proc_open,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = single_release,
+ .proc_write = traceSMB_proc_write,
};
static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
@@ -858,12 +984,12 @@
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,
+static const struct proc_ops cifs_security_flags_proc_ops = {
+ .proc_open = cifs_security_flags_proc_open,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = single_release,
+ .proc_write = cifs_security_flags_proc_write,
};
#else
inline void cifs_proc_init(void)
--
Gitblit v1.6.2