]> err.no Git - linux-2.6/blobdiff - fs/cifs/connect.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
[linux-2.6] / fs / cifs / connect.c
index 96505086759907056e3e84d32f2b1098577d6409..e8fa46c7cff21f82f245e41cbd2cda8f7336d4c7 100644 (file)
@@ -60,7 +60,7 @@ struct smb_vol {
        char *domainname;
        char *UNC;
        char *UNCip;
-       char *in6_addr;  /* ipv6 address as human readable form of in6_addr */
+       char *in6_addr;   /* ipv6 address as human readable form of in6_addr */
        char *iocharset;  /* local code page for mapping to and from Unicode */
        char source_rfc1001_name[16]; /* netbios name of client */
        char target_rfc1001_name[16]; /* netbios name of server for Win9x/ME */
@@ -75,19 +75,21 @@ struct smb_vol {
        bool setuids:1;
        bool override_uid:1;
        bool override_gid:1;
+       bool dynperm:1;
        bool noperm:1;
        bool no_psx_acl:1; /* set if posix acl support should be disabled */
        bool cifs_acl:1;
        bool no_xattr:1;   /* set if xattr (EA) support should be disabled*/
        bool server_ino:1; /* use inode numbers from server ie UniqueId */
        bool direct_io:1;
-       bool remap:1;     /* set to remap seven reserved chars in filenames */
-       bool posix_paths:1;   /* unset to not ask for posix pathnames. */
+       bool remap:1;      /* set to remap seven reserved chars in filenames */
+       bool posix_paths:1; /* unset to not ask for posix pathnames. */
        bool no_linux_ext:1;
        bool sfu_emul:1;
-       bool nullauth:1; /* attempt to authenticate with null user */
-       unsigned nocase;     /* request case insensitive filenames */
-       unsigned nobrl;      /* disable sending byte range locks to srv */
+       bool nullauth:1;   /* attempt to authenticate with null user */
+       bool nocase:1;     /* request case insensitive filenames */
+       bool nobrl:1;      /* disable sending byte range locks to srv */
+       bool seal:1;       /* request transport encryption on share */
        unsigned int rsize;
        unsigned int wsize;
        unsigned int sockopt;
@@ -348,7 +350,6 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
        int reconnect;
 
        current->flags |= PF_MEMALLOC;
-       server->tsk = current;  /* save process info to wake at shutdown */
        cFYI(1, ("Demultiplex PID: %d", task_pid_nr(current)));
        write_lock(&GlobalSMBSeslock);
        atomic_inc(&tcpSesAllocCount);
@@ -651,10 +652,21 @@ multi_t2_fnd:
 
        spin_lock(&GlobalMid_Lock);
        server->tcpStatus = CifsExiting;
-       server->tsk = NULL;
+       spin_unlock(&GlobalMid_Lock);
+       wake_up_all(&server->response_q);
+
+       /* don't exit until kthread_stop is called */
+       set_current_state(TASK_UNINTERRUPTIBLE);
+       while (!kthread_should_stop()) {
+               schedule();
+               set_current_state(TASK_UNINTERRUPTIBLE);
+       }
+       set_current_state(TASK_RUNNING);
+
        /* check if we have blocked requests that need to free */
        /* Note that cifs_max_pending is normally 50, but
        can be set at module install time to as little as two */
+       spin_lock(&GlobalMid_Lock);
        if (atomic_read(&server->inFlight) >= cifs_max_pending)
                atomic_set(&server->inFlight, cifs_max_pending - 1);
        /* We do not want to set the max_pending too low or we
@@ -1237,6 +1249,10 @@ cifs_parse_mount_options(char *options, const char *devname,
                        vol->setuids = 1;
                } else if (strnicmp(data, "nosetuids", 9) == 0) {
                        vol->setuids = 0;
+               } else if (strnicmp(data, "dynperm", 7) == 0) {
+                       vol->dynperm = true;
+               } else if (strnicmp(data, "nodynperm", 9) == 0) {
+                       vol->dynperm = false;
                } else if (strnicmp(data, "nohard", 6) == 0) {
                        vol->retry = 0;
                } else if (strnicmp(data, "nosoft", 6) == 0) {
@@ -1259,8 +1275,12 @@ cifs_parse_mount_options(char *options, const char *devname,
                        vol->no_psx_acl = 1;
                } else if (strnicmp(data, "sign", 4) == 0) {
                        vol->secFlg |= CIFSSEC_MUST_SIGN;
-/*             } else if (strnicmp(data, "seal",4) == 0) {
-                       vol->secFlg |= CIFSSEC_MUST_SEAL; */
+               } else if (strnicmp(data, "seal", 4) == 0) {
+                       /* we do not do the following in secFlags because seal
+                          is a per tree connection (mount) not a per socket
+                          or per-smb connection option in the protocol */
+                       /* vol->secFlg |= CIFSSEC_MUST_SEAL; */
+                       vol->seal = 1;
                } else if (strnicmp(data, "direct", 6) == 0) {
                        vol->direct_io = 1;
                } else if (strnicmp(data, "forcedirectio", 13) == 0) {
@@ -1404,27 +1424,6 @@ find_unc(__be32 new_target_ip_addr, char *uncName, char *userName)
        return NULL;
 }
 
-int
-connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
-                   const char *old_path, const struct nls_table *nls_codepage,
-                   int remap)
-{
-       struct dfs_info3_param *referrals = NULL;
-       unsigned int num_referrals;
-       int rc = 0;
-
-       rc = get_dfs_path(xid, pSesInfo, old_path, nls_codepage,
-                       &num_referrals, &referrals, remap);
-
-       /* BB Add in code to: if valid refrl, if not ip address contact
-               the helper that resolves tcp names, mount to it, try to
-               tcon to it unmount it if fail */
-
-       kfree(referrals);
-
-       return rc;
-}
-
 int
 get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path,
             const struct nls_table *nls_codepage, unsigned int *pnum_referrals,
@@ -1432,7 +1431,6 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path,
 {
        char *temp_unc;
        int rc = 0;
-       unsigned char *targetUNCs;
 
        *pnum_referrals = 0;
        *preferrals = NULL;
@@ -1455,7 +1453,7 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path,
                kfree(temp_unc);
        }
        if (rc == 0)
-               rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, &targetUNCs,
+               rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, preferrals,
                                     pnum_referrals, nls_codepage, remap);
        /* BB map targetUNCs to dfs_info3 structures, here or
                in CIFSGetDFSRefer BB */
@@ -1806,7 +1804,7 @@ convert_delimiter(char *path, char delim)
        if (path == NULL)
                return;
 
-       if (delim == '/') 
+       if (delim == '/')
                old_delim = '\\';
        else
                old_delim = '/';
@@ -2116,11 +2114,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                        cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_UID;
                if (volume_info.override_gid)
                        cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_GID;
+               if (volume_info.dynperm)
+                       cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DYNPERM;
                if (volume_info.direct_io) {
                        cFYI(1, ("mounting share using direct i/o"));
                        cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
                }
 
+               if ((volume_info.cifs_acl) && (volume_info.dynperm))
+                       cERROR(1, ("mount option dynperm ignored if cifsacl "
+                                  "mount option supported"));
+
                tcon =
                    find_unc(sin_server.sin_addr.s_addr, volume_info.UNC,
                             volume_info.username);
@@ -2132,6 +2136,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                           for the retry flag is used */
                        tcon->retry = volume_info.retry;
                        tcon->nocase = volume_info.nocase;
+                       if (tcon->seal != volume_info.seal)
+                               cERROR(1, ("transport encryption setting "
+                                          "conflicts with existing tid"));
                } else {
                        tcon = tconInfoAlloc();
                        if (tcon == NULL)
@@ -2145,10 +2152,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                                if ((strchr(volume_info.UNC + 3, '\\') == NULL)
                                    && (strchr(volume_info.UNC + 3, '/') ==
                                        NULL)) {
-                                       rc = connect_to_dfs_path(xid, pSesInfo,
+/*                                     rc = connect_to_dfs_path(xid, pSesInfo,
                                                "", cifs_sb->local_nls,
                                                cifs_sb->mnt_cifs_flags &
-                                                 CIFS_MOUNT_MAP_SPECIAL_CHR);
+                                                 CIFS_MOUNT_MAP_SPECIAL_CHR);*/
+                                       cFYI(1, ("DFS root not supported"));
                                        rc = -ENODEV;
                                        goto out;
                                } else {
@@ -2164,6 +2172,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                                        atomic_inc(&pSesInfo->inUse);
                                        tcon->retry = volume_info.retry;
                                        tcon->nocase = volume_info.nocase;
+                                       tcon->seal = volume_info.seal;
                                }
                        }
                }
@@ -2187,15 +2196,12 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                        srvTcp->tcpStatus = CifsExiting;
                        spin_unlock(&GlobalMid_Lock);
                        if (srvTcp->tsk) {
-                               struct task_struct *tsk;
                                /* If we could verify that kthread_stop would
                                   always wake up processes blocked in
                                   tcp in recv_mesg then we could remove the
                                   send_sig call */
                                force_sig(SIGKILL, srvTcp->tsk);
-                               tsk = srvTcp->tsk;
-                               if (tsk)
-                                       kthread_stop(tsk);
+                               kthread_stop(srvTcp->tsk);
                        }
                }
                 /* If find_unc succeeded then rc == 0 so we can not end */
@@ -2211,23 +2217,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                                        if ((temp_rc == -ESHUTDOWN) &&
                                            (pSesInfo->server) &&
                                            (pSesInfo->server->tsk)) {
-                                               struct task_struct *tsk;
                                                force_sig(SIGKILL,
                                                        pSesInfo->server->tsk);
-                                               tsk = pSesInfo->server->tsk;
-                                               if (tsk)
-                                                       kthread_stop(tsk);
+                                               kthread_stop(pSesInfo->server->tsk);
                                        }
                                } else {
                                        cFYI(1, ("No session or bad tcon"));
                                        if ((pSesInfo->server) &&
                                            (pSesInfo->server->tsk)) {
-                                               struct task_struct *tsk;
                                                force_sig(SIGKILL,
                                                        pSesInfo->server->tsk);
-                                               tsk = pSesInfo->server->tsk;
-                                               if (tsk)
-                                                       kthread_stop(tsk);
+                                               kthread_stop(pSesInfo->server->tsk);
                                        }
                                }
                                sesInfoFree(pSesInfo);
@@ -2314,9 +2314,10 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses,
        user = ses->userName;
        domain = ses->domainName;
        smb_buffer = cifs_buf_get();
-       if (smb_buffer == NULL) {
+
+       if (smb_buffer == NULL)
                return -ENOMEM;
-       }
+
        smb_buffer_response = smb_buffer;
        pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer;