[CIFS] Finish cifs mount option which requests case insensitive path
[firefly-linux-kernel-4.4.55.git] / fs / cifs / connect.c
index bef5d6f30975aaee0541e360181d34138a146358..ac2c8bdc8e55a41812701c711e7b071bb0a48adc 100644 (file)
@@ -29,6 +29,7 @@
 #include <linux/utsname.h>
 #include <linux/mempool.h>
 #include <linux/delay.h>
+#include <linux/completion.h>
 #include <asm/uaccess.h>
 #include <asm/processor.h>
 #include "cifspdu.h"
@@ -44,6 +45,8 @@
 #define CIFS_PORT 445
 #define RFC1001_PORT 139
 
+static DECLARE_COMPLETION(cifsd_complete);
+
 extern void SMBencrypt(unsigned char *passwd, unsigned char *c8,
                       unsigned char *p24);
 extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8,
@@ -75,6 +78,9 @@ struct smb_vol {
        unsigned direct_io:1;
        unsigned remap:1;   /* set to remap seven reserved chars in filenames */
        unsigned posix_paths:1;   /* unset to not ask for posix pathnames. */
+       unsigned sfu_emul:1;
+       unsigned nocase;     /* request case insensitive filenames */
+       unsigned nobrl;      /* disable sending byte range locks to srv */
        unsigned int rsize;
        unsigned int wsize;
        unsigned int sockopt;
@@ -338,6 +344,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
        atomic_inc(&tcpSesAllocCount);
        length = tcpSesAllocCount.counter;
        write_unlock(&GlobalSMBSeslock);
+       complete(&cifsd_complete);
        if(length  > 1) {
                mempool_resize(cifs_req_poolp,
                        length + cifs_min_rcv,
@@ -675,7 +682,7 @@ multi_t2_fnd:
                msleep(125);
        }
 
-       if (list_empty(&server->pending_mid_q)) {
+       if (!list_empty(&server->pending_mid_q)) {
                /* mpx threads have not exited yet give them 
                at least the smb send timeout time for long ops */
                /* due to delays on oplock break requests, we need
@@ -712,7 +719,7 @@ multi_t2_fnd:
                        GFP_KERNEL);
        }
        
-       msleep(250);
+       complete_and_exit(&cifsd_complete, 0);
        return 0;
 }
 
@@ -1027,10 +1034,25 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
                        vol->remap = 1;
                } else if (strnicmp(data, "nomapchars", 10) == 0) {
                        vol->remap = 0;
+                } else if (strnicmp(data, "sfu", 3) == 0) {
+                        vol->sfu_emul = 1;
+                } else if (strnicmp(data, "nosfu", 5) == 0) {
+                        vol->sfu_emul = 0;
                } else if (strnicmp(data, "posixpaths", 10) == 0) {
                        vol->posix_paths = 1;
                } else if (strnicmp(data, "noposixpaths", 12) == 0) {
                        vol->posix_paths = 0;
+                } else if (strnicmp(data, "nocase", 6) == 0) {
+                        vol->nocase = 1;
+               } else if (strnicmp(data, "brl", 3) == 0) {
+                       vol->nobrl =  0;
+               } else if (strnicmp(data, "nobrl", 5) == 0) {
+                       vol->nobrl =  1;
+                       /* turn off mandatory locking in mode
+                       if remote locking is turned off since the
+                       local vfs will do advisory */
+                       if(vol->file_mode == (S_IALLUGO & ~(S_ISUID | S_IXGRP)))
+                               vol->file_mode = S_IALLUGO;
                } else if (strnicmp(data, "setuids", 7) == 0) {
                        vol->setuids = 1;
                } else if (strnicmp(data, "nosetuids", 9) == 0) {
@@ -1612,8 +1634,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                                        kfree(volume_info.password);
                                FreeXid(xid);
                                return rc;
-                       } else
-                               rc = 0;
+                       }
+                       wait_for_completion(&cifsd_complete);
+                       rc = 0;
                        memcpy(srvTcp->workstation_RFC1001_name, volume_info.source_rfc1001_name,16);
                        srvTcp->sequence_number = 0;
                }
@@ -1687,9 +1710,13 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                        cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SPECIAL_CHR;
                if(volume_info.no_xattr)
                        cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR;
+               if(volume_info.sfu_emul)
+                       cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UNX_EMUL;
+               if(volume_info.nobrl)
+                       cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_BRL;
 
                if(volume_info.direct_io) {
-                       cERROR(1,("mounting share using direct i/o"));
+                       cFYI(1,("mounting share using direct i/o"));
                        cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
                }
 
@@ -1703,6 +1730,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                           to the same server share the last value passed in 
                           for the retry flag is used */
                        tcon->retry = volume_info.retry;
+                       tcon->nocase = volume_info.nocase;
                } else {
                        tcon = tconInfoAlloc();
                        if (tcon == NULL)
@@ -1731,6 +1759,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                                if (!rc) {
                                        atomic_inc(&pSesInfo->inUse);
                                        tcon->retry = volume_info.retry;
+                                       tcon->nocase = volume_info.nocase;
                                }
                        }
                }
@@ -1752,8 +1781,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                        spin_lock(&GlobalMid_Lock);
                        srvTcp->tcpStatus = CifsExiting;
                        spin_unlock(&GlobalMid_Lock);
-                       if(srvTcp->tsk)
+                       if(srvTcp->tsk) {
                                send_sig(SIGKILL,srvTcp->tsk,1);
+                               wait_for_completion(&cifsd_complete);
+                       }
                }
                 /* If find_unc succeeded then rc == 0 so we can not end */
                if (tcon)  /* up accidently freeing someone elses tcon struct */
@@ -1766,8 +1797,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                                        temp_rc = CIFSSMBLogoff(xid, pSesInfo);
                                        /* if the socketUseCount is now zero */
                                        if((temp_rc == -ESHUTDOWN) &&
-                                          (pSesInfo->server->tsk))
+                                          (pSesInfo->server->tsk)) {
                                                send_sig(SIGKILL,pSesInfo->server->tsk,1);
+                                               wait_for_completion(&cifsd_complete);
+                                       }
                                } else
                                        cFYI(1, ("No session or bad tcon"));
                                sesInfoFree(pSesInfo);
@@ -1794,7 +1827,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                                /* Try and negotiate POSIX pathnames if we can. */
                                if (volume_info.posix_paths && (CIFS_UNIX_POSIX_PATHNAMES_CAP &
                                    le64_to_cpu(tcon->fsUnixInfo.Capability))) {
-                                       if (!CIFSSMBSETFSUnixInfo(xid, tcon, CIFS_UNIX_POSIX_PATHNAMES_CAP, 0))  {
+                                       if (!CIFSSMBSetFSUnixInfo(xid, tcon, CIFS_UNIX_POSIX_PATHNAMES_CAP))  {
                                                cFYI(1,("negotiated posix pathnames support"));
                                                cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_POSIX_PATHS;
                                        } else {
@@ -1850,6 +1883,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses,
        header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
                        NULL /* no tCon exists yet */ , 13 /* wct */ );
 
+       smb_buffer->Mid = GetNextMid(ses->server);
        pSMB->req_no_secext.AndXCommand = 0xFF;
        pSMB->req_no_secext.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
        pSMB->req_no_secext.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
@@ -2125,6 +2159,8 @@ CIFSSpnegoSessSetup(unsigned int xid, struct cifsSesInfo *ses,
        /* send SMBsessionSetup here */
        header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
                        NULL /* no tCon exists yet */ , 12 /* wct */ );
+
+       smb_buffer->Mid = GetNextMid(ses->server);
        pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
        pSMB->req.AndXCommand = 0xFF;
        pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
@@ -2391,6 +2427,8 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
        /* send SMBsessionSetup here */
        header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
                        NULL /* no tCon exists yet */ , 12 /* wct */ );
+
+       smb_buffer->Mid = GetNextMid(ses->server);
        pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
        pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
 
@@ -2733,6 +2771,8 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
        /* send SMBsessionSetup here */
        header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
                        NULL /* no tCon exists yet */ , 12 /* wct */ );
+
+       smb_buffer->Mid = GetNextMid(ses->server);
        pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
        pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
        pSMB->req.AndXCommand = 0xFF;
@@ -3104,6 +3144,8 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
 
        header_assemble(smb_buffer, SMB_COM_TREE_CONNECT_ANDX,
                        NULL /*no tid */ , 4 /*wct */ );
+
+       smb_buffer->Mid = GetNextMid(ses->server);
        smb_buffer->Uid = ses->Suid;
        pSMB = (TCONX_REQ *) smb_buffer;
        pSMBr = (TCONX_RSP *) smb_buffer_response;
@@ -3225,8 +3267,10 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
                                return 0;
                        } else if (rc == -ESHUTDOWN) {
                                cFYI(1,("Waking up socket by sending it signal"));
-                               if(cifsd_task)
+                               if(cifsd_task) {
                                        send_sig(SIGKILL,cifsd_task,1);
+                                       wait_for_completion(&cifsd_complete);
+                               }
                                rc = 0;
                        } /* else - we have an smb session
                                left on this socket do not kill cifsd */