1 files changed, 32 insertions, 36 deletions

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index f428bf3bf1a9..023434f72c15 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -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;
@@ -1246,6 +1248,10 @@ 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) {
@@ -1268,8 +1274,12 @@ 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) {
@@ -1414,34 +1424,12 @@ find_unc(__be32 new_target_ip_addr, char *uncName, char *userName)
 }
 
 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,
              struct dfs_info3_param **preferrals, int remap)
 {
         char *temp_unc;
         int rc = 0;
-        unsigned char *targetUNCs;
 
         *pnum_referrals = 0;
         *preferrals = NULL;
@@ -1464,7 +1452,7 @@ 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 */
@@ -1815,7 +1803,7 @@ convert_delimiter(char *path, char delim)
         if (path == NULL)
                 return;
 
-        if (delim == '/') 
+        if (delim == '/')
                 old_delim = '\\';
         else
                 old_delim = '/';
@@ -2125,6 +2113,8 @@ 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;
@@ -2141,6 +2131,9 @@ 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)
@@ -2154,10 +2147,11 @@ 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 {
@@ -2173,6 +2167,7 @@ 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;
                                 }
                         }
                 }
@@ -2314,9 +2309,10 @@ 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;