CIFS: Add new mount option to set owner uid and gid from special sids in acl

[cascardo/linux.git] / fs / cifs / cifsfs.c

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 14ae4b8..15261ba 100644 (file)
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -64,15 +64,15 @@ unsigned int global_secflags = CIFSSEC_DEF;
 unsigned int sign_CIFS_PDUs = 1;
 static const struct super_operations cifs_super_ops;
 unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE;
-module_param(CIFSMaxBufSize, uint, 0);
+module_param(CIFSMaxBufSize, uint, 0444);
 MODULE_PARM_DESC(CIFSMaxBufSize, "Network buffer size (not including header). "
                                 "Default: 16384 Range: 8192 to 130048");
 unsigned int cifs_min_rcv = CIFS_MIN_RCV_POOL;
-module_param(cifs_min_rcv, uint, 0);
+module_param(cifs_min_rcv, uint, 0444);
 MODULE_PARM_DESC(cifs_min_rcv, "Network buffers in pool. Default: 4 Range: "
                                "1 to 64");
 unsigned int cifs_min_small = 30;
-module_param(cifs_min_small, uint, 0);
+module_param(cifs_min_small, uint, 0444);
 MODULE_PARM_DESC(cifs_min_small, "Small network buffers in pool. Default: 30 "
                                 "Range: 2 to 256");
 unsigned int cifs_max_pending = CIFS_MAX_REQ;
@@ -271,7 +271,7 @@ cifs_alloc_inode(struct super_block *sb)
        cifs_inode->createtime = 0;
        cifs_inode->epoch = 0;
 #ifdef CONFIG_CIFS_SMB2
-       get_random_bytes(cifs_inode->lease_key, SMB2_LEASE_KEY_SIZE);
+       generate_random_uuid(cifs_inode->lease_key);
 #endif
        /*
         * Can not set i_flags here - they get immediately overwritten to zero
@@ -469,6 +469,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
                seq_puts(s, ",posixpaths");
        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)
                seq_puts(s, ",setuids");
+       if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UID_FROM_ACL)
+               seq_puts(s, ",idsfromsid");
        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
                seq_puts(s, ",serverino");
        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
@@ -896,35 +898,26 @@ const struct inode_operations cifs_dir_inode_ops = {
        .link = cifs_hardlink,
        .mkdir = cifs_mkdir,
        .rmdir = cifs_rmdir,
-       .rename2 = cifs_rename2,
+       .rename = cifs_rename2,
        .permission = cifs_permission,
        .setattr = cifs_setattr,
        .symlink = cifs_symlink,
        .mknod   = cifs_mknod,
-       .setxattr = generic_setxattr,
-       .getxattr = generic_getxattr,
        .listxattr = cifs_listxattr,
-       .removexattr = generic_removexattr,
 };
 
 const struct inode_operations cifs_file_inode_ops = {
        .setattr = cifs_setattr,
        .getattr = cifs_getattr,
        .permission = cifs_permission,
-       .setxattr = generic_setxattr,
-       .getxattr = generic_getxattr,
        .listxattr = cifs_listxattr,
-       .removexattr = generic_removexattr,
 };
 
 const struct inode_operations cifs_symlink_inode_ops = {
        .readlink = generic_readlink,
        .get_link = cifs_get_link,
        .permission = cifs_permission,
-       .setxattr = generic_setxattr,
-       .getxattr = generic_getxattr,
        .listxattr = cifs_listxattr,
-       .removexattr = generic_removexattr,
 };
 
 static int cifs_clone_file_range(struct file *src_file, loff_t off,
@@ -1271,7 +1264,6 @@ init_cifs(void)
        GlobalTotalActiveXid = 0;
        GlobalMaxActiveXid = 0;
        spin_lock_init(&cifs_tcp_ses_lock);
-       spin_lock_init(&cifs_file_list_lock);
        spin_lock_init(&GlobalMid_Lock);
 
        get_random_bytes(&cifs_lock_secret, sizeof(cifs_lock_secret));