diff options
Diffstat (limited to 'fs/cifs/cifs_debug.c')
| -rw-r--r-- | fs/cifs/cifs_debug.c | 941 |
1 files changed, 0 insertions, 941 deletions
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c deleted file mode 100644 index 593fb422d0f3..000000000000 --- a/fs/cifs/cifs_debug.c +++ /dev/null @@ -1,941 +0,0 @@ -/* - * 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_DFS_UPCALL -#include "dfs_cache.h" -#endif -#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, struct TCP_Server_Info *server) -{ -#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, - server->ops->calc_smb_size(smb, server)); -#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, server); - 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->nocase) - seq_printf(m, " nocase"); - 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 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, "\tSpeed: %zu bps\n", iface->speed); - seq_puts(m, "\t\tCapabilities: "); - if (iface->rdma_capable) - seq_puts(m, "rdma "); - if (iface->rss_capable) - seq_puts(m, "rss "); - seq_putc(m, '\n'); - if (iface->sockaddr.ss_family == AF_INET) - 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) -{ - 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_SMB_DIRECT - seq_printf(m, ",SMB_DIRECT"); -#endif -#ifdef CONFIG_CIFS_STATS2 - seq_printf(m, ",STATS2"); -#else - seq_printf(m, ",STATS"); -#endif -#ifdef CONFIG_CIFS_DEBUG2 - seq_printf(m, ",DEBUG2"); -#elif defined(CONFIG_CIFS_DEBUG) - seq_printf(m, ",DEBUG"); -#endif -#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY - seq_printf(m, ",ALLOW_INSECURE_LEGACY"); -#endif -#ifdef CONFIG_CIFS_WEAK_PW_HASH - seq_printf(m, ",WEAK_PW_HASH"); -#endif -#ifdef CONFIG_CIFS_POSIX - seq_printf(m, ",CIFS_POSIX"); -#endif -#ifdef CONFIG_CIFS_UPCALL - seq_printf(m, ",UPCALL(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"); - if (server->posix_ext_supported) - seq_printf(m, " posix"); - - 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 ", - 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 ", - 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 Instance: %d\n\tLocal Users To " - "Server: %d SecMode: 0x%x Req On Wire: %d", - 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:"); - 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_lock(&ses->iface_lock); - if (ses->iface_count) - seq_printf(m, "\n\tServer interfaces: %zu\n", - ses->iface_count); - for (j = 0; j < ses->iface_count; j++) { - seq_printf(m, "\t%d)", j); - cifs_dump_iface(m, &ses->iface_list[j]); - } - spin_unlock(&ses->iface_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 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 - int i; - - atomic_set(&totBufAllocCount, 0); - atomic_set(&totSmBufAllocCount, 0); -#endif /* CONFIG_CIFS_STATS2 */ - atomic_set(&tcpSesReconnectCount, 0); - atomic_set(&tconInfoReconnectCount, 0); - - spin_lock(&GlobalMid_Lock); - GlobalMaxActiveXid = 0; - GlobalCurrentXid = 0; - spin_unlock(&GlobalMid_Lock); - 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_STATS2 - for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) - atomic_set(&server->smb2slowcmd[i], 0); -#endif /* CONFIG_CIFS_STATS2 */ - 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); - spin_lock(&tcon->stat_lock); - tcon->bytes_read = 0; - tcon->bytes_written = 0; - spin_unlock(&tcon->stat_lock); - 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; -#ifdef CONFIG_CIFS_STATS2 - int j; -#endif /* STATS2 */ - 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); -#ifdef CONFIG_CIFS_STATS2 - 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", - atomic_read(&server->smb2slowcmd[j]), - server->hostname, j); -#endif /* STATS2 */ - 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, -}; - -#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_single("DebugData", 0, proc_fs_cifs, - cifs_debug_data_proc_show); - - proc_create_single("open_files", 0400, proc_fs_cifs, - cifs_debug_files_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("LinuxExtensionsEnabled", 0644, proc_fs_cifs, - &cifs_linux_ext_proc_fops); - proc_create("SecurityFlags", 0644, proc_fs_cifs, - &cifs_security_flags_proc_fops); - proc_create("LookupCacheEnabled", 0644, proc_fs_cifs, - &cifs_lookup_cache_proc_fops); - -#ifdef CONFIG_CIFS_DFS_UPCALL - proc_create("dfscache", 0644, proc_fs_cifs, &dfscache_proc_fops); -#endif - -#ifdef CONFIG_CIFS_SMB_DIRECT - proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs, - &cifs_rdma_readwrite_threshold_proc_fops); - proc_create("smbd_max_frmr_depth", 0644, proc_fs_cifs, - &cifs_smbd_max_frmr_depth_proc_fops); - proc_create("smbd_keep_alive_interval", 0644, proc_fs_cifs, - &cifs_smbd_keep_alive_interval_proc_fops); - proc_create("smbd_max_receive_size", 0644, proc_fs_cifs, - &cifs_smbd_max_receive_size_proc_fops); - proc_create("smbd_max_fragmented_recv_size", 0644, proc_fs_cifs, - &cifs_smbd_max_fragmented_recv_size_proc_fops); - proc_create("smbd_max_send_size", 0644, proc_fs_cifs, - &cifs_smbd_max_send_size_proc_fops); - proc_create("smbd_send_credit_target", 0644, proc_fs_cifs, - &cifs_smbd_send_credit_target_proc_fops); - proc_create("smbd_receive_credit_max", 0644, 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("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); - 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 */ - else - return -EINVAL; - - 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 */ |