trunk/ccs-patch/ccs-patch-2.6.16.27-0.6_SUSE.txt

diff -ubBpEr linux-2.6.16.27-0.6/Makefile linux-2.6.16.27-0.6-ccs/Makefile
--- linux-2.6.16.27-0.6/Makefile        2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/Makefile    2006-12-26 10:46:05.000000000 +0900
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 16
-EXTRAVERSION = .27
+EXTRAVERSION = .27-ccs
 NAME=Sliding Snow Leopard
 
 # *DOCUMENTATION*
diff -ubBpEr linux-2.6.16.27-0.6/fs/Kconfig linux-2.6.16.27-0.6-ccs/fs/Kconfig
--- linux-2.6.16.27-0.6/fs/Kconfig      2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/Kconfig  2006-12-26 10:45:19.000000000 +0900
@@ -1888,5 +1888,7 @@ endmenu
 
 source "fs/nls/Kconfig"
 
+source "fs/Kconfig.ccs"
+
 endmenu
 
diff -ubBpEr linux-2.6.16.27-0.6/fs/Makefile linux-2.6.16.27-0.6-ccs/fs/Makefile
--- linux-2.6.16.27-0.6/fs/Makefile     2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/Makefile 2006-12-26 10:45:19.000000000 +0900
@@ -106,3 +106,5 @@ obj-$(CONFIG_HPPFS)         += hppfs/
 obj-$(CONFIG_DEBUG_FS)         += debugfs/
 obj-$(CONFIG_CONFIGFS_FS)      += configfs/
 obj-$(CONFIG_OCFS2_FS)         += ocfs2/
+
+include $(srctree)/fs/Makefile-2.6.ccs
diff -ubBpEr linux-2.6.16.27-0.6/fs/attr.c linux-2.6.16.27-0.6-ccs/fs/attr.c
--- linux-2.6.16.27-0.6/fs/attr.c       2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/attr.c   2006-12-26 10:45:19.000000000 +0900
@@ -15,6 +15,9 @@
 #include <linux/fcntl.h>
 #include <linux/quotaops.h>
 #include <linux/security.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 /* Taken over from the old code... */
 
@@ -145,12 +148,20 @@ int notify_change(struct dentry * dentry
 
        if (inode->i_op && inode->i_op->setattr) {
                error = security_inode_setattr(dentry, attr);
+               /***** TOMOYO Linux start. *****/
+               if (!error && (ia_valid & ATTR_MODE)) error = CheckCapabilityACL(TOMOYO_SYS_CHMOD);
+               if (!error && (ia_valid & (ATTR_UID | ATTR_GID))) error = CheckCapabilityACL(TOMOYO_SYS_CHOWN);
+               /***** TOMOYO Linux end. *****/
                if (!error)
                        error = inode->i_op->setattr(dentry, attr);
        } else {
                error = inode_change_ok(inode, attr);
                if (!error)
                        error = security_inode_setattr(dentry, attr);
+               /***** TOMOYO Linux start. *****/
+               if (!error && (ia_valid & ATTR_MODE)) error = CheckCapabilityACL(TOMOYO_SYS_CHMOD);
+               if (!error && (ia_valid & (ATTR_UID | ATTR_GID))) error = CheckCapabilityACL(TOMOYO_SYS_CHOWN);
+               /***** TOMOYO Linux end. *****/
                if (!error) {
                        if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
                            (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid))
diff -ubBpEr linux-2.6.16.27-0.6/fs/compat.c linux-2.6.16.27-0.6-ccs/fs/compat.c
--- linux-2.6.16.27-0.6/fs/compat.c     2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/compat.c 2006-12-26 10:45:19.000000000 +0900
@@ -52,6 +52,9 @@
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
 #include <asm/ioctls.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
 
@@ -405,6 +408,9 @@ asmlinkage long compat_sys_ioctl(unsigne
                /*FALL THROUGH*/
 
        default:
+               /***** TOMOYO Linux start. *****/
+               if ((error = CheckCapabilityACL(TOMOYO_SYS_IOCTL)) < 0) goto out_fput;
+               /***** TOMOYO Linux end. *****/
                if (filp->f_op && filp->f_op->compat_ioctl) {
                        error = filp->f_op->compat_ioctl(filp, cmd, arg);
                        if (error != -ENOIOCTLCMD)
diff -ubBpEr linux-2.6.16.27-0.6/fs/exec.c linux-2.6.16.27-0.6-ccs/fs/exec.c
--- linux-2.6.16.27-0.6/fs/exec.c       2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/exec.c   2006-12-26 10:45:19.000000000 +0900
@@ -58,6 +58,13 @@
 #include <linux/kmod.h>
 #endif
 
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
+
 int core_uses_pid;
 char core_pattern[65] = "core";
 int suid_dumpable = 0;
@@ -140,6 +147,11 @@ asmlinkage long sys_uselib(const char __
        if (error)
                goto exit;
 
+       /***** TOMOYO Linux start. *****/
+       error = CheckOpenPermission(nd.dentry, nd.mnt, 01); /* 01 means "read". */
+       if (error) goto exit;
+       /***** TOMOYO Linux end. *****/
+
        file = nameidata_to_filp(&nd, O_RDONLY);
        error = PTR_ERR(file);
        if (IS_ERR(file))
@@ -1149,6 +1161,25 @@ int do_execve(char * filename,
        struct file *file;
        int retval;
        int i;
+       /***** TOMOYO Linux start. *****/
+#ifdef CONFIG_TOMOYO
+       struct domain_info *next_domain = NULL;
+#endif
+       /***** TOMOYO Linux end. *****/
+
+       /***** CCS Start. *****/
+#if defined(CONFIG_SAKURA) || defined(CONFIG_TOMOYO)
+       extern void CCS_LoadPolicy(const char *filename);
+       CCS_LoadPolicy(filename);
+#endif
+       /***** CCS end. *****/
+
+       /***** SAKURA Linux start. *****/
+#ifdef CONFIG_SAKURA_DROP_CAPABILITY_API
+       if (strcmp(filename, "\\\\disable") == 0) return DropTaskCapability(argv);
+       if (CheckTaskCapability(SAKURA_DISABLE_EXECVE) < 0) return -EPERM;
+#endif
+       /***** SAKURA Linux end. *****/
 
        retval = -ENOMEM;
        bprm = kmalloc(sizeof(*bprm), GFP_KERNEL);
@@ -1161,6 +1192,15 @@ int do_execve(char * filename,
        if (IS_ERR(file))
                goto out_kfree;
 
+       /***** TOMOYO Linux start. *****/
+#ifdef CONFIG_TOMOYO
+       retval = FindNextDomain(filename, file, &next_domain, argv);
+       if (retval < 0) {
+               allow_write_access(file); fput(file); goto out_kfree;
+       }
+#endif
+       /***** TOMOYO Linux end. *****/
+       
        sched_exec();
 
        bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
@@ -1207,6 +1247,19 @@ int do_execve(char * filename,
                goto out;
 
        retval = search_binary_handler(bprm,regs);
+
+       /***** TOMOYO Linux start. *****/
+#ifdef CONFIG_TOMOYO
+       if (retval >= 0) current->domain_info = next_domain;
+#endif
+       /***** TOMOYO Linux end. *****/
+
+       /***** SAKURA Linux start. *****/
+#ifdef CONFIG_SAKURA_DROP_CAPABILITY_API
+       if (retval >= 0) RestoreTaskCapability();
+#endif
+       /***** SAKURA Linux end. *****/
+
        if (retval >= 0) {
                free_arg_pages(bprm);
 
diff -ubBpEr linux-2.6.16.27-0.6/fs/fcntl.c linux-2.6.16.27-0.6-ccs/fs/fcntl.c
--- linux-2.6.16.27-0.6/fs/fcntl.c      2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/fcntl.c  2006-12-26 10:45:19.000000000 +0900
@@ -22,6 +22,9 @@
 #include <asm/poll.h>
 #include <asm/siginfo.h>
 #include <asm/uaccess.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 void fastcall set_close_on_exec(unsigned int fd, int flag)
 {
@@ -215,6 +218,10 @@ static int setfl(int fd, struct file * f
        if (((arg ^ filp->f_flags) & O_APPEND) && IS_APPEND(inode))
                return -EPERM;
 
+       /***** TOMOYO Linux start. *****/
+       if (!(arg & O_APPEND) && CheckReWritePermission(filp)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
+
        /* O_NOATIME can only be set by the owner or superuser */
        if ((arg & O_NOATIME) && !(filp->f_flags & O_NOATIME))
                if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
diff -ubBpEr linux-2.6.16.27-0.6/fs/ioctl.c linux-2.6.16.27-0.6-ccs/fs/ioctl.c
--- linux-2.6.16.27-0.6/fs/ioctl.c      2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/ioctl.c  2006-12-26 10:45:19.000000000 +0900
@@ -16,6 +16,9 @@
 
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 static long do_ioctl(struct file *filp, unsigned int cmd,
                unsigned long arg)
@@ -24,6 +27,9 @@ static long do_ioctl(struct file *filp, 
 
        if (!filp->f_op)
                goto out;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_IOCTL) < 0) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        if (filp->f_op->unlocked_ioctl) {
                error = filp->f_op->unlocked_ioctl(filp, cmd, arg);
diff -ubBpEr linux-2.6.16.27-0.6/fs/namei.c linux-2.6.16.27-0.6-ccs/fs/namei.c
--- linux-2.6.16.27-0.6/fs/namei.c      2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/namei.c  2006-12-26 10:45:19.000000000 +0900
@@ -37,6 +37,13 @@
 
 #define ACC_MODE(x) ("\000\004\002\006"[(x)&O_ACCMODE])
 
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
+
 /* [Feb-1997 T. Schoebel-Theuer]
  * Fundamental changes in the pathname lookup mechanisms (namei)
  * were necessary because of omirr.  The reason is that omirr needs
@@ -783,6 +790,13 @@ static fastcall int __link_path_walk(con
        int err;
        unsigned int lookup_flags = nd->flags;
        
+       /***** SAKURA Linux start. *****/
+       if (CheckEUID() < 0) {
+               path_release(nd);
+               return -EPERM;
+       }
+       /***** SAKURA Linux end. *****/
+
        while (*name=='/')
                name++;
        if (!*name)
@@ -1470,6 +1484,9 @@ int vfs_create(struct inode *dir, struct
        error = security_inode_create(dir, dentry, mode);
        if (error)
                return error;
+       /***** TOMOYO Linux start. *****/
+       if (nd && (error = CheckSingleWritePermission(TYPE_CREATE_ACL, dentry, nd->mnt)) < 0) return error;
+       /***** TOMOYO Linux end. *****/
        DQUOT_INIT(dir);
        error = dir->i_op->create(dir, dentry, mode, nd);
        if (!error)
@@ -1509,7 +1526,7 @@ int may_open(struct nameidata *nd, int a
 
                flag &= ~O_TRUNC;
        } else if (IS_RDONLY(inode) && (flag & FMODE_WRITE))
-               return -EROFS;
+               { ROFS_Log_from_dentry(nd->dentry, nd->mnt, "may_open"); return -EROFS; } /***** ReadOnly Tracer *****/
        /*
         * An append-only file must be opened in append mode for writing.
         */
@@ -1525,6 +1542,11 @@ int may_open(struct nameidata *nd, int a
                if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
                        return -EPERM;
 
+       /***** TOMOYO Linux start. *****/
+       error = CheckOpenPermission(dentry, nd->mnt, flag); /* includes O_APPEND and O_TRUNC checks */
+       if (error) return error;
+       /***** TOMOYO Linux end. *****/
+
        /*
         * Ensure there are no outstanding leases on the file.
         */
@@ -1556,6 +1578,9 @@ int may_open(struct nameidata *nd, int a
        return 0;
 }
 
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo_vfs.h>
+/***** TOMOYO Linux end. *****/
 /*
  *     open_namei()
  *
@@ -1684,6 +1709,7 @@ ok:
 exit_dput:
        dput_path(&path, nd);
 exit:
+       if (error == -EROFS) ROFS_Log_from_dentry(nd->dentry, nd->mnt, "open_namei"); /***** ReadOnly Tracer *****/
        if (!IS_ERR(nd->intent.open.file))
                release_open_intent(nd);
        path_release(nd);
@@ -1814,6 +1840,12 @@ asmlinkage long sys_mknodat(int dfd, con
 
        if (S_ISDIR(mode))
                return -EPERM;
+       /***** TOMOYO Linux start. *****/
+       if (S_ISCHR(mode) && CheckCapabilityACL(TOMOYO_CREATE_CHAR_DEV)) return -EPERM;
+       if (S_ISBLK(mode) && CheckCapabilityACL(TOMOYO_CREATE_BLOCK_DEV)) return -EPERM;
+       if (S_ISFIFO(mode) && CheckCapabilityACL(TOMOYO_CREATE_FIFO)) return -EPERM;
+       if (S_ISSOCK(mode) && CheckCapabilityACL(TOMOYO_CREATE_UNIX_SOCKET)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
        tmp = getname(filename);
        if (IS_ERR(tmp))
                return PTR_ERR(tmp);
@@ -1832,10 +1864,16 @@ asmlinkage long sys_mknodat(int dfd, con
                        error = vfs_create(nd.dentry->d_inode,dentry,mode,&nd);
                        break;
                case S_IFCHR: case S_IFBLK:
+                       /***** TOMOYO Linux start. *****/
+                       if ((error = pre_vfs_mknod(nd.dentry->d_inode, dentry, mode)) == 0 && (error = CheckSingleWritePermission(S_ISCHR(mode) ? TYPE_MKCHAR_ACL : TYPE_MKBLOCK_ACL, dentry, nd.mnt)) == 0)
+                       /***** TOMOYO Linux end. *****/
                        error = vfs_mknod(nd.dentry->d_inode,dentry,mode,
                                        new_decode_dev(dev));
                        break;
                case S_IFIFO: case S_IFSOCK:
+                       /***** TOMOYO Linux start. *****/
+                       if ((error = pre_vfs_mknod(nd.dentry->d_inode, dentry, mode)) == 0 && (error = CheckSingleWritePermission(S_ISFIFO(mode) ? TYPE_MKFIFO_ACL : TYPE_MKSOCK_ACL, dentry, nd.mnt)) == 0)
+                       /***** TOMOYO Linux end. *****/
                        error = vfs_mknod(nd.dentry->d_inode,dentry,mode,0);
                        break;
                case S_IFDIR:
@@ -1844,6 +1882,7 @@ asmlinkage long sys_mknodat(int dfd, con
                default:
                        error = -EINVAL;
                }
+               if (error == -EROFS) ROFS_Log_from_dentry(dentry, nd.mnt, "sys_mknod"); /***** ReadOnly Tracer *****/
                dput(dentry);
        }
        mutex_unlock(&nd.dentry->d_inode->i_mutex);
@@ -1900,7 +1939,11 @@ asmlinkage long sys_mkdirat(int dfd, con
                if (!IS_ERR(dentry)) {
                        if (!IS_POSIXACL(nd.dentry->d_inode))
                                mode &= ~current->fs->umask;
+                       /***** TOMOYO Linux start. *****/
+                       if ((error = pre_vfs_mkdir(nd.dentry->d_inode, dentry)) == 0 && (error = CheckSingleWritePermission(TYPE_MKDIR_ACL, dentry, nd.mnt)) == 0)
+                       /***** TOMOYO Linux end. *****/
                        error = vfs_mkdir(nd.dentry->d_inode, dentry, mode);
+                       if (error == -EROFS) ROFS_Log_from_dentry(dentry, nd.mnt, "sys_mkdir"); /***** ReadOnly Tracer *****/
                        dput(dentry);
                }
                mutex_unlock(&nd.dentry->d_inode->i_mutex);
@@ -2008,7 +2051,11 @@ static long do_rmdir(int dfd, const char
        dentry = lookup_hash(&nd);
        error = PTR_ERR(dentry);
        if (!IS_ERR(dentry)) {
+               /***** TOMOYO Linux start. *****/
+               if ((error = pre_vfs_rmdir(nd.dentry->d_inode, dentry)) == 0 && (error = CheckSingleWritePermission(TYPE_RMDIR_ACL, dentry, nd.mnt)) == 0)
+               /***** TOMOYO Linux end. *****/
                error = vfs_rmdir(nd.dentry->d_inode, dentry);
+               if (error == -EROFS) ROFS_Log_from_dentry(dentry, nd.mnt, "sys_rmdir"); /***** ReadOnly Tracer *****/
                dput(dentry);
        }
        mutex_unlock(&nd.dentry->d_inode->i_mutex);
@@ -2067,6 +2114,9 @@ static long do_unlinkat(int dfd, const c
        struct dentry *dentry;
        struct nameidata nd;
        struct inode *inode = NULL;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_UNLINK)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        name = getname(pathname);
        if(IS_ERR(name))
@@ -2088,7 +2138,11 @@ static long do_unlinkat(int dfd, const c
                inode = dentry->d_inode;
                if (inode)
                        atomic_inc(&inode->i_count);
+               /***** TOMOYO Linux start. *****/
+               if ((error = pre_vfs_unlink(nd.dentry->d_inode, dentry)) == 0 && (error = CheckSingleWritePermission(TYPE_UNLINK_ACL, dentry, nd.mnt)) == 0)
+               /***** TOMOYO Linux end. *****/
                error = vfs_unlink(nd.dentry->d_inode, dentry);
+               if (error == -EROFS) ROFS_Log_from_dentry(dentry, nd.mnt, "sys_unlink"); /***** ReadOnly Tracer *****/
        exit2:
                dput(dentry);
        }
@@ -2150,6 +2204,9 @@ asmlinkage long sys_symlinkat(const char
        int error = 0;
        char * from;
        char * to;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_SYMLINK)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        from = getname(oldname);
        if(IS_ERR(from))
@@ -2166,7 +2223,11 @@ asmlinkage long sys_symlinkat(const char
                dentry = lookup_create(&nd, 0);
                error = PTR_ERR(dentry);
                if (!IS_ERR(dentry)) {
+                       /***** TOMOYO Linux start. *****/
+                       if ((error = pre_vfs_symlink(nd.dentry->d_inode, dentry)) == 0 && (error = CheckSingleWritePermission(TYPE_SYMLINK_ACL, dentry, nd.mnt)) == 0)
+                       /***** TOMOYO Linux end. *****/
                        error = vfs_symlink(nd.dentry->d_inode, dentry, from, S_IALLUGO);
+                       if (error == -EROFS) ROFS_Log_from_dentry(dentry, nd.mnt, "vfs_symlink"); /***** ReadOnly Tracer *****/
                        dput(dentry);
                }
                mutex_unlock(&nd.dentry->d_inode->i_mutex);
@@ -2238,6 +2299,9 @@ asmlinkage long sys_linkat(int olddfd, c
        struct nameidata nd, old_nd;
        int error;
        char * to;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_LINK)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        if (flags != 0)
                return -EINVAL;
@@ -2258,7 +2322,11 @@ asmlinkage long sys_linkat(int olddfd, c
        new_dentry = lookup_create(&nd, 0);
        error = PTR_ERR(new_dentry);
        if (!IS_ERR(new_dentry)) {
+               /***** TOMOYO Linux start. *****/
+               if ((error = pre_vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry)) == 0 && (error = CheckDoubleWritePermission(TYPE_LINK_ACL, old_nd.dentry, old_nd.mnt, new_dentry, nd.mnt)) == 0)
+               /***** TOMOYO Linux end. *****/
                error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry);
+               if (error == -EROFS) ROFS_Log_from_dentry(new_dentry, nd.mnt, "vfs_link"); /***** ReadOnly Tracer *****/
                dput(new_dentry);
        }
        mutex_unlock(&nd.dentry->d_inode->i_mutex);
@@ -2484,6 +2552,13 @@ static int do_rename(int olddfd, const c
        if (new_dentry == trap)
                goto exit5;
 
+       /***** TOMOYO Linux start. *****/
+       if ((error = pre_vfs_rename(old_dir->d_inode, old_dentry, new_dir->d_inode, new_dentry)) < 0 ||
+               (error = CheckDoubleWritePermission(TYPE_RENAME_ACL, old_dentry, oldnd.mnt, new_dentry, newnd.mnt)) < 0) {
+               goto exit5;
+       }
+       /***** TOMOYO Linux end. *****/
+ 
        error = vfs_rename(old_dir->d_inode, old_dentry,
                                   new_dir->d_inode, new_dentry);
 exit5:
@@ -2497,6 +2572,7 @@ exit2:
 exit1:
        path_release(&oldnd);
 exit:
+       if (error == -EROFS) ROFS_Log(oldname, "do_rename"); /***** ReadOnly Tracer *****/
        return error;
 }
 
@@ -2506,6 +2582,9 @@ asmlinkage long sys_renameat(int olddfd,
        int error;
        char * from;
        char * to;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_RENAME)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        from = getname(oldname);
        if(IS_ERR(from))
diff -ubBpEr linux-2.6.16.27-0.6/fs/namespace.c linux-2.6.16.27-0.6-ccs/fs/namespace.c
--- linux-2.6.16.27-0.6/fs/namespace.c  2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/namespace.c      2006-12-26 10:45:19.000000000 +0900
@@ -26,6 +26,12 @@
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 #include "pnode.h"
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 extern int __init init_rootfs(void);
 
@@ -510,6 +516,10 @@ static int do_umount(struct vfsmount *mn
        if (retval)
                return retval;
 
+       /***** SAKURA Linux start. *****/
+       if (SAKURA_MayUmount(mnt) < 0) return -EPERM;
+       /***** SAKURA Linux end. *****/
+
        /*
         * Allow userspace to request a mountpoint be expired rather than
         * unmounting unconditionally. Unmount only happens if:
@@ -598,6 +608,9 @@ asmlinkage long sys_umount(char __user *
 {
        struct nameidata nd;
        int retval;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_UMOUNT)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        retval = __user_walk(name, LOOKUP_FOLLOW, &nd);
        if (retval)
@@ -882,6 +895,10 @@ static int do_loopback(struct nameidata 
 
        if (!check_mnt(nd->mnt) || !check_mnt(old_nd.mnt))
                goto out;
+       /***** SAKURA Linux start. *****/
+       err = -EPERM;
+       if (SAKURA_MayMount(nd) < 0 || CheckTaskCapability(SAKURA_DISABLE_MOUNT) < 0) goto out;
+       /***** SAKURA Linux end. *****/
 
        err = -ENOMEM;
        if (recurse)
@@ -966,7 +983,10 @@ static int do_move_mount(struct nameidat
        err = -EINVAL;
        if (!check_mnt(nd->mnt) || !check_mnt(old_nd.mnt))
                goto out;
-
+       /***** SAKURA Linux start. *****/
+       err = -EPERM;
+       if (SAKURA_MayUmount(old_nd.mnt) < 0 || SAKURA_MayMount(nd) < 0 || CheckTaskCapability(SAKURA_DISABLE_MOUNT) < 0) goto out;
+       /***** SAKURA Linux end. *****/
        err = -ENOENT;
        mutex_lock(&nd->dentry->d_inode->i_mutex);
        if (IS_DEADDIR(nd->dentry->d_inode))
@@ -1068,6 +1088,10 @@ int do_add_mount(struct vfsmount *newmnt
        err = -EINVAL;
        if (S_ISLNK(newmnt->mnt_root->d_inode->i_mode))
                goto unlock;
+       /***** SAKURA Linux start. *****/
+       err = -EPERM;
+       if (SAKURA_MayMount(nd) < 0 || CheckTaskCapability(SAKURA_DISABLE_MOUNT) < 0) goto unlock;
+       /***** SAKURA Linux end. *****/
 
        newmnt->mnt_flags = mnt_flags;
        if ((err = graft_tree(newmnt, nd)))
@@ -1438,6 +1462,9 @@ asmlinkage long sys_mount(char __user * 
        unsigned long type_page;
        unsigned long dev_page;
        char *dir_page;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_MOUNT)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        retval = copy_mount_options(type, &type_page);
        if (retval < 0)
@@ -1456,6 +1483,15 @@ asmlinkage long sys_mount(char __user * 
        if (retval < 0)
                goto out3;
 
+       /***** SAKURA Linux start. *****/
+       retval = -EPERM;
+       if (CheckMountPermission((char *) dev_page, dir_page, (char *) type_page, &flags) < 0 ||
+               CheckTaskCapability(SAKURA_DISABLE_MOUNT) < 0) {
+               free_page(data_page);
+               goto out3;
+       }
+       /***** SAKURA Linux end. *****/
+
        lock_kernel();
        retval = do_mount((char *)dev_page, dir_page, (char *)type_page,
                          flags, (void *)data_page);
@@ -1575,6 +1611,10 @@ asmlinkage long sys_pivot_root(const cha
        if (!capable(CAP_SYS_ADMIN))
                return -EPERM;
 
+       /***** SAKURA Linux start. *****/
+       if (CheckPivotRootPermission() < 0 || CheckTaskCapability(SAKURA_DISABLE_PIVOTROOT) < 0) return -EPERM;
+       /***** SAKURA Linux end. *****/
+
        lock_kernel();
 
        error = __user_walk(new_root, LOOKUP_FOLLOW | LOOKUP_DIRECTORY,
diff -ubBpEr linux-2.6.16.27-0.6/fs/open.c linux-2.6.16.27-0.6-ccs/fs/open.c
--- linux-2.6.16.27-0.6/fs/open.c       2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/open.c   2006-12-26 10:45:19.000000000 +0900
@@ -30,6 +30,13 @@
 
 #include <asm/unistd.h>
 
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
+
 int vfs_statfs(struct super_block *sb, struct kstatfs *buf)
 {
        int retval = -ENODEV;
@@ -266,6 +273,9 @@ static long do_sys_truncate(const char _
        if (error)
                goto dput_and_out;
 
+       /***** TOMOYO Linux start. *****/
+       if ((error = CheckSingleWritePermission(TYPE_TRUNCATE_ACL, nd.dentry, nd.mnt)) == 0)
+       /***** TOMOYO Linux end. *****/
        error = locks_verify_truncate(inode, NULL, length);
        if (!error) {
                DQUOT_INIT(inode);
@@ -274,6 +284,7 @@ static long do_sys_truncate(const char _
        put_write_access(inode);
 
 dput_and_out:
+       if (error == -EROFS) ROFS_Log_from_dentry(nd.dentry, nd.mnt, "do_sys_truncate"); /***** ReadOnly Tracer *****/
        path_release(&nd);
 out:
        return error;
@@ -318,11 +329,14 @@ static long do_sys_ftruncate(unsigned in
        error = -EPERM;
        if (IS_APPEND(inode))
                goto out_putf;
-
+       /***** TOMOYO Linux start. *****/
+       if ((error = CheckSingleWritePermission(TYPE_TRUNCATE_ACL, dentry, file->f_vfsmnt)) == 0)
+       /***** TOMOYO Linux end. *****/
        error = locks_verify_truncate(inode, file, length);
        if (!error)
                error = do_truncate(dentry, length, 0, file);
 out_putf:
+       if (error == -EROFS) ROFS_Log_from_dentry(file->f_dentry, file->f_vfsmnt, "do_sys_ftruncate"); /***** ReadOnly Tracer *****/
        fput(file);
 out:
        return error;
@@ -410,6 +424,7 @@ asmlinkage long sys_utime(char __user * 
        error = notify_change(nd.dentry, &newattrs);
        mutex_unlock(&inode->i_mutex);
 dput_and_out:
+       if (error == -EROFS) ROFS_Log_from_dentry(nd.dentry, nd.mnt, "sys_utime"); /***** ReadOnly Tracer *****/
        path_release(&nd);
 out:
        return error;
@@ -463,6 +478,7 @@ long do_utimes(int dfd, char __user *fil
        error = notify_change(nd.dentry, &newattrs);
        mutex_unlock(&inode->i_mutex);
 dput_and_out:
+       if (error == -EROFS) ROFS_Log_from_dentry(nd.dentry, nd.mnt, "sys_utimes"); /***** ReadOnly Tracer *****/
        path_release(&nd);
 out:
        return error;
@@ -525,6 +541,9 @@ asmlinkage long sys_faccessat(int dfd, c
                if(!res && (mode & S_IWOTH) && IS_RDONLY(nd.dentry->d_inode)
                   && !special_file(nd.dentry->d_inode->i_mode))
                        res = -EROFS;
+#if 0
+               if (res == -EROFS) ROFS_Log_from_dentry(nd.dentry, nd.mnt, "sys_access"); /***** ReadOnly Tracer *****/
+#endif
                path_release(&nd);
        }
 
@@ -595,6 +614,9 @@ asmlinkage long sys_chroot(const char __
 {
        struct nameidata nd;
        int error;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_CHROOT)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        error = __user_walk(filename, LOOKUP_FOLLOW | LOOKUP_DIRECTORY | LOOKUP_NOALT, &nd);
        if (error)
@@ -608,6 +630,19 @@ asmlinkage long sys_chroot(const char __
        if (!capable(CAP_SYS_CHROOT))
                goto dput_and_out;
 
+       /***** SAKURA Linux start. *****/
+    {
+        char *name = getname(filename);
+        if (!IS_ERR(name)) {
+            error = CheckChRootPermission(name) | CheckTaskCapability(SAKURA_DISABLE_CHROOT);
+            putname(name);
+        } else {
+            error = PTR_ERR(name);
+        }
+        if (error < 0) goto dput_and_out;
+    }
+       /***** SAKURA Linux end. *****/
+
        set_fs_root(current->fs, nd.mnt, nd.dentry);
        set_fs_altroot();
        error = 0;
@@ -647,6 +682,7 @@ asmlinkage long sys_fchmod(unsigned int 
        mutex_unlock(&inode->i_mutex);
 
 out_putf:
+       if (err == -EROFS) ROFS_Log_from_dentry(file->f_dentry, file->f_vfsmnt, "sys_fchmod"); /***** ReadOnly Tracer *****/
        fput(file);
 out:
        return err;
@@ -682,6 +718,7 @@ asmlinkage long sys_fchmodat(int dfd, co
        mutex_unlock(&inode->i_mutex);
 
 dput_and_out:
+       if (error == -EROFS) ROFS_Log_from_dentry(nd.dentry, nd.mnt, "sys_chmod"); /***** ReadOnly Tracer *****/
        path_release(&nd);
 out:
        return error;
@@ -735,6 +772,7 @@ asmlinkage long sys_chown(const char __u
        error = user_path_walk(filename, &nd);
        if (!error) {
                error = chown_common(nd.dentry, user, group);
+               if (error == -EROFS) ROFS_Log_from_dentry(nd.dentry, nd.mnt, "sys_chown"); /***** ReadOnly Tracer *****/
                path_release(&nd);
        }
        return error;
@@ -768,6 +806,7 @@ asmlinkage long sys_lchown(const char __
        error = user_path_walk_link(filename, &nd);
        if (!error) {
                error = chown_common(nd.dentry, user, group);
+               if (error == -EROFS) ROFS_Log_from_dentry(nd.dentry, nd.mnt, "sys_lchown"); /***** ReadOnly Tracer *****/
                path_release(&nd);
        }
        return error;
@@ -782,6 +821,7 @@ asmlinkage long sys_fchown(unsigned int 
        file = fget(fd);
        if (file) {
                error = chown_common(file->f_dentry, user, group);
+               if (error == -EROFS) ROFS_Log_from_dentry(file->f_dentry, file->f_vfsmnt, "sys_fchown"); /***** ReadOnly Tracer *****/
                fput(file);
        }
        return error;
@@ -1190,6 +1230,9 @@ EXPORT_SYMBOL(sys_close);
  */
 asmlinkage long sys_vhangup(void)
 {
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_VHANGUP) == 0)
+       /***** TOMOYO Linux end. *****/
        if (capable(CAP_SYS_TTY_CONFIG)) {
                tty_vhangup(current->signal->tty);
                return 0;
diff -ubBpEr linux-2.6.16.27-0.6/fs/proc/Makefile linux-2.6.16.27-0.6-ccs/fs/proc/Makefile
--- linux-2.6.16.27-0.6/fs/proc/Makefile        2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/proc/Makefile    2006-12-26 10:45:19.000000000 +0900
@@ -13,3 +13,6 @@ proc-y       += inode.o root.o base.o ge
 proc-$(CONFIG_PROC_KCORE)      += kcore.o
 proc-$(CONFIG_PROC_VMCORE)     += vmcore.o
 proc-$(CONFIG_PROC_DEVICETREE) += proc_devtree.o
+
+proc-$(CONFIG_SAKURA) += ccs_proc.o
+proc-$(CONFIG_TOMOYO) += ccs_proc.o
diff -ubBpEr linux-2.6.16.27-0.6/fs/proc/proc_misc.c linux-2.6.16.27-0.6-ccs/fs/proc/proc_misc.c
--- linux-2.6.16.27-0.6/fs/proc/proc_misc.c     2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/fs/proc/proc_misc.c 2006-12-26 10:46:26.000000000 +0900
@@ -782,4 +782,13 @@ void __init proc_misc_init(void)
        if (entry)
                entry->proc_fops = &proc_sysrq_trigger_operations;
 #endif
+       /***** CCS start. *****/
+#if defined(CONFIG_SAKURA) || defined(CONFIG_TOMOYO)
+       {
+               extern void __init CCSProc_Init(void);
+               CCSProc_Init();
+               printk("Hook version: 2.6.16.27-0.6_SUSE 2006/12/26\n");
+       }
+#endif
+       /***** CCS end. *****/
 }
diff -ubBpEr linux-2.6.16.27-0.6/include/linux/init_task.h linux-2.6.16.27-0.6-ccs/include/linux/init_task.h
--- linux-2.6.16.27-0.6/include/linux/init_task.h       2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/include/linux/init_task.h   2006-12-26 10:45:19.000000000 +0900
@@ -123,6 +123,12 @@ extern struct group_info init_groups;
        .map_base       = __TASK_UNMAPPED_BASE,                         \
        .cpu_timers     = INIT_CPU_TIMERS(tsk.cpu_timers),              \
        .fs_excl        = ATOMIC_INIT(0),                               \
+       /***** TOMOYO Linux start. *****/        \
+       .domain_info = &KERNEL_DOMAIN,           \
+       /***** TOMOYO Linux end. *****/          \
+       /***** SAKURA Linux start. *****/        \
+       .dropped_capability = 0,                 \
+       /***** SAKURA Linux end. *****/          \
        INIT_TASK_PAGG(tsk)                                             \
 }
 
diff -ubBpEr linux-2.6.16.27-0.6/include/linux/sched.h linux-2.6.16.27-0.6-ccs/include/linux/sched.h
--- linux-2.6.16.27-0.6/include/linux/sched.h   2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/include/linux/sched.h       2006-12-26 10:45:19.000000000 +0900
@@ -40,6 +40,11 @@
 
 struct exec_domain;
 
+/***** TOMOYO Linux start. *****/
+struct domain_info;
+extern struct domain_info KERNEL_DOMAIN;
+/***** TOMOYO Linux end. *****/
+
 /*
  * cloning flags:
  */
@@ -904,6 +909,12 @@ struct task_struct {
 #endif
        atomic_t fs_excl;       /* holding fs exclusive resources */
        struct rcu_head rcu;
+       /***** TOMOYO Linux start. *****/
+       struct domain_info *domain_info;
+       /***** TOMOYO Linux end. *****/
+       /***** SAKURA Linux start. *****/
+       unsigned int dropped_capability;
+       /***** SAKURA Linux end. *****/
 #ifdef CONFIG_PAGG
 /* List of pagg (process aggregate) attachments */
        struct list_head pagg_list;
diff -ubBpEr linux-2.6.16.27-0.6/kernel/kexec.c linux-2.6.16.27-0.6-ccs/kernel/kexec.c
--- linux-2.6.16.27-0.6/kernel/kexec.c  2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/kernel/kexec.c      2006-12-26 10:45:19.000000000 +0900
@@ -26,6 +26,9 @@
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/semaphore.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 /* Per cpu memory for storing cpu states in case of system crash. */
 note_buf_t* crash_notes;
@@ -922,6 +925,9 @@ asmlinkage long sys_kexec_load(unsigned 
        /* We only trust the superuser with rebooting the system. */
        if (!capable(CAP_SYS_BOOT))
                return -EPERM;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_KEXEC_LOAD)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        /*
         * Verify we have a legal set of flags
diff -ubBpEr linux-2.6.16.27-0.6/kernel/kmod.c linux-2.6.16.27-0.6-ccs/kernel/kmod.c
--- linux-2.6.16.27-0.6/kernel/kmod.c   2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/kernel/kmod.c       2006-12-26 10:45:19.000000000 +0900
@@ -149,6 +149,13 @@ static int ____call_usermodehelper(void 
        /* We can run anywhere, unlike our parent keventd(). */
        set_cpus_allowed(current, CPU_MASK_ALL);
 
+       /***** TOMOYO Linux start. *****/
+       current->domain_info = &KERNEL_DOMAIN;
+       /***** TOMOYO Linux start. *****/
+       /***** SAKURA Linux start. *****/
+       current->dropped_capability = 0;
+       /***** SAKURA Linux end. *****/
+
        retval = -EPERM;
        if (current->fs->root)
                retval = execve(sub_info->path, sub_info->argv,sub_info->envp);
diff -ubBpEr linux-2.6.16.27-0.6/kernel/module.c linux-2.6.16.27-0.6-ccs/kernel/module.c
--- linux-2.6.16.27-0.6/kernel/module.c 2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/kernel/module.c     2006-12-26 10:45:19.000000000 +0900
@@ -42,6 +42,9 @@
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
 #include <asm/cacheflush.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 #if 0
 #define DEBUGP printk
@@ -624,7 +627,9 @@ sys_delete_module(const char __user *nam
 
        if (!capable(CAP_SYS_MODULE))
                return -EPERM;
-
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_USE_KERNEL_MODULE)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
        if (strncpy_from_user(name, name_user, MODULE_NAME_LEN-1) < 0)
                return -EFAULT;
        name[MODULE_NAME_LEN-1] = '\0';
@@ -1860,7 +1865,9 @@ sys_init_module(void __user *umod,
        /* Must have permission */
        if (!capable(CAP_SYS_MODULE))
                return -EPERM;
-
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_USE_KERNEL_MODULE)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
        /* Only one module load at a time, please */
        if (down_interruptible(&module_mutex) != 0)
                return -EINTR;
diff -ubBpEr linux-2.6.16.27-0.6/kernel/sched.c linux-2.6.16.27-0.6-ccs/kernel/sched.c
--- linux-2.6.16.27-0.6/kernel/sched.c  2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/kernel/sched.c      2006-12-26 10:45:19.000000000 +0900
@@ -54,6 +54,9 @@
 #include <asm/tlb.h>
 
 #include <asm/unistd.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 #if defined(CONFIG_LKCD_DUMP) || defined(CONFIG_LKCD_DUMP_MODULE)
 /* used to soft spin in sched while dump is in progress */
@@ -3579,6 +3582,9 @@ asmlinkage long sys_nice(int increment)
 {
        int retval;
        long nice;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_NICE)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        /*
         * Setpriority might change our priority at the same moment.
diff -ubBpEr linux-2.6.16.27-0.6/kernel/signal.c linux-2.6.16.27-0.6-ccs/kernel/signal.c
--- linux-2.6.16.27-0.6/kernel/signal.c 2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/kernel/signal.c     2006-12-26 10:45:19.000000000 +0900
@@ -30,6 +30,9 @@
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 #include <asm/siginfo.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 /*
  * SLAB caches for signal bits.
@@ -2337,6 +2340,10 @@ asmlinkage long
 sys_kill(int pid, int sig)
 {
        struct siginfo info;
+       /***** TOMOYO Linux start. *****/
+       if (sig && CheckCapabilityACL(TOMOYO_SYS_KILL) < 0) return -EPERM;
+       if (sig && CheckSignalACL(sig, pid) < 0) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        info.si_signo = sig;
        info.si_errno = 0;
@@ -2395,6 +2402,10 @@ asmlinkage long sys_tgkill(int tgid, int
        /* This is only valid for single tasks */
        if (pid <= 0 || tgid <= 0)
                return -EINVAL;
+       /***** TOMOYO Linux start. *****/
+       if (sig && CheckCapabilityACL(TOMOYO_SYS_KILL) < 0) return -EPERM;
+       if (sig && CheckSignalACL(sig, pid) < 0) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        return do_tkill(tgid, pid, sig);
 }
@@ -2408,6 +2419,10 @@ sys_tkill(int pid, int sig)
        /* This is only valid for single tasks */
        if (pid <= 0)
                return -EINVAL;
+       /***** TOMOYO Linux start. *****/
+       if (sig && CheckCapabilityACL(TOMOYO_SYS_KILL) < 0) return -EPERM;
+       if (sig && CheckSignalACL(sig, pid) < 0) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        return do_tkill(0, pid, sig);
 }
diff -ubBpEr linux-2.6.16.27-0.6/kernel/sys.c linux-2.6.16.27-0.6-ccs/kernel/sys.c
--- linux-2.6.16.27-0.6/kernel/sys.c    2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/kernel/sys.c        2006-12-26 10:45:19.000000000 +0900
@@ -38,6 +38,9 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/unistd.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 #ifndef SET_UNALIGN_CTL
 # define SET_UNALIGN_CTL(a,b)  (-EINVAL)
@@ -269,6 +272,9 @@ asmlinkage long sys_setpriority(int whic
 
        if (which > 2 || which < 0)
                goto out;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_NICE)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        /* normalize: avoid signed division (rounding problems) */
        error = -ESRCH;
@@ -496,6 +502,9 @@ asmlinkage long sys_reboot(int magic1, i
                        magic2 != LINUX_REBOOT_MAGIC2B &&
                        magic2 != LINUX_REBOOT_MAGIC2C))
                return -EINVAL;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_REBOOT)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        /* Instead of trying to make the power_off code look like
         * halt when pm_power_off is not set do it the easy way.
@@ -1533,6 +1542,9 @@ asmlinkage long sys_sethostname(char __u
                return -EPERM;
        if (len < 0 || len > __NEW_UTS_LEN)
                return -EINVAL;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_SETHOSTNAME)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
        down_write(&uts_sem);
        errno = -EFAULT;
        if (!copy_from_user(tmp, name, len)) {
@@ -1578,6 +1590,9 @@ asmlinkage long sys_setdomainname(char _
                return -EPERM;
        if (len < 0 || len > __NEW_UTS_LEN)
                return -EINVAL;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_SETHOSTNAME)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        down_write(&uts_sem);
        errno = -EFAULT;
diff -ubBpEr linux-2.6.16.27-0.6/kernel/sysctl.c linux-2.6.16.27-0.6-ccs/kernel/sysctl.c
--- linux-2.6.16.27-0.6/kernel/sysctl.c 2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/kernel/sysctl.c     2006-12-26 10:45:19.000000000 +0900
@@ -49,6 +49,9 @@
 
 #include <asm/uaccess.h>
 #include <asm/processor.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 extern int proc_nr_files(ctl_table *table, int write, struct file *filp,
                      void __user *buffer, size_t *lenp, loff_t *ppos);
@@ -1150,6 +1153,87 @@ void __init sysctl_init(void)
 #endif
 }
 
+/***** TOMOYO Linux start. *****/
+static int try_parse_table(int __user *name, int nlen, void __user *oldval, void __user *newval, ctl_table *table)
+{
+       int n;
+       int error = -ENOMEM;
+       int op = 0;
+       char *buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
+       if (oldval) op |= 004;
+       if (newval) op |= 002;
+       if (!op) { /* Neither read nor write */
+               error = 0;
+               goto out;
+       }
+       if (!buffer) goto out;
+       memset(buffer, 0, PAGE_SIZE);
+       snprintf(buffer, PAGE_SIZE - 1, "/proc/sys");
+ repeat:
+       if (!nlen) {
+               error = -ENOTDIR;
+               goto out;
+       }
+       if (get_user(n, name)) {
+               error = -EFAULT;
+               goto out;
+       }
+       for ( ; table->ctl_name; table++) {
+               if (n == table->ctl_name || table->ctl_name == CTL_ANY) {
+                       int pos = strlen(buffer);
+                       const char *cp = table->procname;
+                       error = -ENOMEM;
+                       if (cp) {
+                               if (pos + 1 >= PAGE_SIZE - 1) goto out;
+                               buffer[pos++] = '/';
+                               while (*cp) {
+                                       const unsigned char c = * (const unsigned char *) cp;
+                                       if (c == '\\') {
+                                               if (pos + 2 >= PAGE_SIZE - 1) goto out;
+                                               buffer[pos++] = '\\';
+                                               buffer[pos++] = '\\';
+                                       } else if (c > ' ' && c < 127) {
+                                               if (pos + 1 >= PAGE_SIZE - 1) goto out;
+                                               buffer[pos++] = c;
+                                       } else {
+                                               if (pos + 4 >= PAGE_SIZE - 1) goto out;
+                                               buffer[pos++] = '\\';
+                                               buffer[pos++] = (c >> 6) + '0';
+                                               buffer[pos++] = ((c >> 3) & 7) + '0';
+                                               buffer[pos++] = (c & 7) + '0';
+                                       }
+                                       cp++;
+                               }
+                       } else {
+                               /* Assume nobody assigns "=\$=" for procname. */
+                               snprintf(buffer + pos, PAGE_SIZE - pos - 1, "/=%d=", table->ctl_name);
+                               if (memchr(buffer, '\0', PAGE_SIZE - 2) == NULL) goto out;
+                       }
+                       if (table->child) {
+                               if (table->strategy) {
+                                       /* printk("sysctl='%s'\n", buffer); */
+                                       if (CheckFilePerm(buffer, op, "sysctl")) {
+                                               error = -EPERM;
+                                               goto out;
+                                       }
+                               }
+                               name++;
+                               nlen--;
+                               table = table->child;
+                               goto repeat;
+                       }
+                       /* printk("sysctl='%s'\n", buffer); */
+                       error = CheckFilePerm(buffer, op, "sysctl");
+                       goto out;
+               }
+       }
+       error = -ENOTDIR;
+ out:
+       kfree(buffer);
+       return error;
+}
+/***** TOMOYO Linux end. *****/
+
 int do_sysctl(int __user *name, int nlen, void __user *oldval, size_t __user *oldlenp,
               void __user *newval, size_t newlen)
 {
@@ -1175,6 +1259,9 @@ int do_sysctl(int __user *name, int nlen
 
                spin_unlock(&sysctl_lock);
 
+               /***** TOMOYO Linux start. *****/
+               if ((error = try_parse_table(name, nlen, oldval, newval, head->ctl_table)) == 0)
+               /***** TOMOYO Linux end. *****/
                error = parse_table(name, nlen, oldval, oldlenp, 
                                        newval, newlen, head->ctl_table,
                                        &context);
@@ -1247,6 +1334,12 @@ repeat:
                                if (ctl_perm(table, 001))
                                        return -EPERM;
                                if (table->strategy) {
+                                       /***** TOMOYO Linux start. *****/
+                                       int op = 0;
+                                       if (oldval) op |= 004;
+                                       if (newval) op |= 002;
+                                       if (ctl_perm(table, op)) return -EPERM;
+                                       /***** TOMOYO Linux end. *****/
                                        error = table->strategy(
                                                table, name, nlen,
                                                oldval, oldlenp,
diff -ubBpEr linux-2.6.16.27-0.6/kernel/time.c linux-2.6.16.27-0.6-ccs/kernel/time.c
--- linux-2.6.16.27-0.6/kernel/time.c   2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/kernel/time.c       2006-12-26 10:45:19.000000000 +0900
@@ -39,6 +39,9 @@
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 /* 
  * The timezone where the local system is located.  Used as a default by some
@@ -91,6 +94,9 @@ asmlinkage long sys_stime(time_t __user 
        err = security_settime(&tv, NULL);
        if (err)
                return err;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_SETTIME)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        do_settimeofday(&tv);
        return 0;
@@ -161,6 +167,9 @@ int do_sys_settimeofday(struct timespec 
        error = security_settime(tv, tz);
        if (error)
                return error;
+       /***** TOMOYO Linux start. *****/
+       if (CheckCapabilityACL(TOMOYO_SYS_SETTIME)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
 
        if (tz) {
                /* SMP safe, global irq locking makes it work. */
@@ -239,6 +248,9 @@ int do_adjtimex(struct timex *txc)
        /* In order to modify anything, you gotta be super-user! */
        if (txc->modes && !capable(CAP_SYS_TIME))
                return -EPERM;
+       /***** TOMOYO Linux start. *****/
+       if (txc->modes && CheckCapabilityACL(TOMOYO_SYS_SETTIME)) return -EPERM;
+       /***** TOMOYO Linux end. *****/
                
        /* Now we validate the data before disabling interrupts */
 
diff -ubBpEr linux-2.6.16.27-0.6/net/ipv4/inet_connection_sock.c linux-2.6.16.27-0.6-ccs/net/ipv4/inet_connection_sock.c
--- linux-2.6.16.27-0.6/net/ipv4/inet_connection_sock.c 2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/net/ipv4/inet_connection_sock.c     2006-12-26 10:45:19.000000000 +0900
@@ -24,6 +24,9 @@
 #include <net/route.h>
 #include <net/tcp_states.h>
 #include <net/xfrm.h>
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
 
 #ifdef INET_CSK_DEBUG
 const char inet_csk_timer_bug_msg[] = "inet_csk BUG: unknown timer value\n";
@@ -88,6 +91,9 @@ int inet_csk_get_port(struct inet_hashin
                do {
                        head = &hashinfo->bhash[inet_bhashfn(rover, hashinfo->bhash_size)];
                        spin_lock(&head->lock);
+                       /***** SAKURA Linux start. *****/
+                       if (SAKURA_MayAutobind(rover) < 0) goto next;
+                       /***** SAKURA Linux end. *****/
                        inet_bind_bucket_for_each(tb, node, &head->chain)
                                if (tb->port == rover)
                                        goto next;
diff -ubBpEr linux-2.6.16.27-0.6/net/ipv4/inet_hashtables.c linux-2.6.16.27-0.6-ccs/net/ipv4/inet_hashtables.c
--- linux-2.6.16.27-0.6/net/ipv4/inet_hashtables.c      2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/net/ipv4/inet_hashtables.c  2006-12-26 10:45:19.000000000 +0900
@@ -23,6 +23,9 @@
 #include <net/inet_connection_sock.h>
 #include <net/inet_hashtables.h>
 #include <net/ip.h>
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
 
 /*
  * Allocate and initialize a new local port bind bucket.
@@ -268,6 +271,9 @@ int inet_hash_connect(struct inet_timewa
                local_bh_disable();
                for (i = 1; i <= range; i++) {
                        port = low + (i + offset) % range;
+                       /***** SAKURA Linux start. *****/
+                       if (SAKURA_MayAutobind(port) < 0) continue;
+                       /***** SAKURA Linux end. *****/
                        head = &hinfo->bhash[inet_bhashfn(port, hinfo->bhash_size)];
                        spin_lock(&head->lock);
 
diff -ubBpEr linux-2.6.16.27-0.6/net/ipv4/udp.c linux-2.6.16.27-0.6-ccs/net/ipv4/udp.c
--- linux-2.6.16.27-0.6/net/ipv4/udp.c  2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/net/ipv4/udp.c      2006-12-26 10:45:19.000000000 +0900
@@ -109,6 +109,9 @@
 #include <net/inet_common.h>
 #include <net/checksum.h>
 #include <net/xfrm.h>
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
 
 /*
  *     Snmp MIB for the UDP layer
@@ -140,6 +143,9 @@ static int udp_v4_get_port(struct sock *
                for (i = 0; i < UDP_HTABLE_SIZE; i++, result++) {
                        struct hlist_head *list;
                        int size;
+                       /***** SAKURA Linux start. *****/
+                       if (SAKURA_MayAutobind(result) < 0) continue;
+                       /***** SAKURA Linux end. *****/
 
                        list = &udp_hash[result & (UDP_HTABLE_SIZE - 1)];
                        if (hlist_empty(list)) {
@@ -163,6 +169,9 @@ static int udp_v4_get_port(struct sock *
                                result = sysctl_local_port_range[0]
                                        + ((result - sysctl_local_port_range[0]) &
                                           (UDP_HTABLE_SIZE - 1));
+                       /***** SAKURA Linux start. *****/
+                       if (SAKURA_MayAutobind(result) < 0) continue;
+                       /***** SAKURA Linux end. *****/
                        if (!udp_lport_inuse(result))
                                break;
                }
diff -ubBpEr linux-2.6.16.27-0.6/net/ipv6/inet6_hashtables.c linux-2.6.16.27-0.6-ccs/net/ipv6/inet6_hashtables.c
--- linux-2.6.16.27-0.6/net/ipv6/inet6_hashtables.c     2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/net/ipv6/inet6_hashtables.c 2006-12-26 10:45:19.000000000 +0900
@@ -22,6 +22,9 @@
 #include <net/inet_hashtables.h>
 #include <net/inet6_hashtables.h>
 #include <net/ip.h>
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
 
 struct sock *inet6_lookup_listener(struct inet_hashinfo *hashinfo,
                                   const struct in6_addr *daddr,
@@ -187,6 +190,9 @@ int inet6_hash_connect(struct inet_timew
                local_bh_disable();
                for (i = 1; i <= range; i++) {
                        port = low + (i + offset) % range;
+                       /***** SAKURA Linux start. *****/
+                       if (SAKURA_MayAutobind(port) < 0) continue;
+                       /***** SAKURA Linux end. *****/
                        head = &hinfo->bhash[inet_bhashfn(port, hinfo->bhash_size)];
                        spin_lock(&head->lock);
 
diff -ubBpEr linux-2.6.16.27-0.6/net/ipv6/udp.c linux-2.6.16.27-0.6-ccs/net/ipv6/udp.c
--- linux-2.6.16.27-0.6/net/ipv6/udp.c  2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/net/ipv6/udp.c      2006-12-26 10:45:19.000000000 +0900
@@ -59,6 +59,9 @@
 
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
 
 DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6) __read_mostly;
 
@@ -82,6 +85,9 @@ static int udp_v6_get_port(struct sock *
                for (i = 0; i < UDP_HTABLE_SIZE; i++, result++) {
                        int size;
                        struct hlist_head *list;
+                       /***** SAKURA Linux start. *****/
+                       if (SAKURA_MayAutobind(result) < 0) continue;
+                       /***** SAKURA Linux end. *****/
 
                        list = &udp_hash[result & (UDP_HTABLE_SIZE - 1)];
                        if (hlist_empty(list)) {
@@ -105,6 +111,9 @@ static int udp_v6_get_port(struct sock *
                                result = sysctl_local_port_range[0]
                                        + ((result - sysctl_local_port_range[0]) &
                                           (UDP_HTABLE_SIZE - 1));
+                       /***** SAKURA Linux start. *****/
+                       if (SAKURA_MayAutobind(result) < 0) continue;
+                       /***** SAKURA Linux end. *****/
                        if (!udp_lport_inuse(result))
                                break;
                }
diff -ubBpEr linux-2.6.16.27-0.6/net/socket.c linux-2.6.16.27-0.6-ccs/net/socket.c
--- linux-2.6.16.27-0.6/net/socket.c    2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/net/socket.c        2006-12-26 10:45:19.000000000 +0900
@@ -97,6 +97,11 @@
 #include <net/sock.h>
 #include <linux/netfilter.h>
 
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+#include <linux/tomoyo_socket.h>
+/***** TOMOYO Linux end. *****/
+
 static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
 static ssize_t sock_aio_read(struct kiocb *iocb, char __user *buf,
                         size_t size, loff_t pos);
@@ -547,7 +552,9 @@ static inline int __sock_sendmsg(struct 
        err = security_socket_sendmsg(sock, msg, size);
        if (err)
                return err;
-
+       /***** TOMOYO Linux start. *****/
+       if (CheckSocketSendMsgPermission(sock, (struct sockaddr *) msg->msg_name, msg->msg_namelen)) return -EPERM;
+       /***** TOMOYO Linux start. *****/
        return sock->ops->sendmsg(iocb, sock, msg, size);
 }
 
@@ -614,6 +621,11 @@ int sock_recvmsg(struct socket *sock, st
        ret = __sock_recvmsg(&iocb, sock, msg, size, flags);
        if (-EIOCBQUEUED == ret)
                ret = wait_on_sync_kiocb(&iocb);
+       /***** TOMOYO Linux start. *****/
+       if (ret >= 0 && CheckSocketRecvMsgPermission(sock, (struct sockaddr *) msg->msg_name, msg->msg_namelen)) {
+               ret = -EAGAIN; /* Hope less harmful than -EPERM. */
+       }
+       /***** TOMOYO Linux end. *****/
        return ret;
 }
 
@@ -1103,6 +1115,10 @@ static int __sock_create(int family, int
                family = PF_PACKET;
        }
 
+       /***** TOMOYO Linux start. *****/
+       if ((err = CheckSocketCreatePermission(family, type, protocol)) < 0) return err;
+       /***** TOMOYO Linux end. *****/
+
        err = security_socket_create(family, type, protocol, kern);
        if (err)
                return err;
@@ -1300,6 +1316,9 @@ asmlinkage long sys_bind(int fd, struct 
                                sockfd_put(sock);
                                return err;
                        }
+                       /***** TOMOYO Linux start. *****/
+                       if ((err = CheckSocketBindPermission(sock, (struct sockaddr *) address, addrlen)) == 0)
+                       /***** TOMOYO Linux end. *****/
                        err = sock->ops->bind(sock, (struct sockaddr *)address, addrlen);
                }
                sockfd_put(sock);
@@ -1330,7 +1349,9 @@ asmlinkage long sys_listen(int fd, int b
                        sockfd_put(sock);
                        return err;
                }
-
+               /***** TOMOYO Linux start. *****/
+               if ((err = CheckSocketListenPermission(sock)) == 0)
+               /***** TOMOYO Linux end. *****/
                err=sock->ops->listen(sock, backlog);
                sockfd_put(sock);
        }
@@ -1381,6 +1402,12 @@ asmlinkage long sys_accept(int fd, struc
        if (err < 0)
                goto out_release;
 
+       /***** TOMOYO Linux start. *****/
+       if (CheckSocketAcceptPermission(newsock, (struct sockaddr *) address)) {
+               err = -ECONNABORTED; /* Hope less harmful than -EPERM. */
+               goto out_release;
+       }
+       /***** TOMOYO Linux end. *****/
        if (upeer_sockaddr) {
                if(newsock->ops->getname(newsock, (struct sockaddr *)address, &len, 2)<0) {
                        err = -ECONNABORTED;
@@ -1436,7 +1463,9 @@ asmlinkage long sys_connect(int fd, stru
        err = security_socket_connect(sock, (struct sockaddr *)address, addrlen);
        if (err)
                goto out_put;
-
+       /***** TOMOYO Linux start. *****/
+       if ((err = CheckSocketConnectPermission(sock, (struct sockaddr *) address, addrlen)) == 0)
+       /***** TOMOYO Linux end. *****/
        err = sock->ops->connect(sock, (struct sockaddr *) address, addrlen,
                                 sock->file->f_flags);
 out_put:
diff -ubBpEr linux-2.6.16.27-0.6/net/unix/af_unix.c linux-2.6.16.27-0.6-ccs/net/unix/af_unix.c
--- linux-2.6.16.27-0.6/net/unix/af_unix.c      2006-12-26 10:45:12.000000000 +0900
+++ linux-2.6.16.27-0.6-ccs/net/unix/af_unix.c  2006-12-26 10:45:19.000000000 +0900
@@ -117,6 +117,12 @@
 #include <linux/mount.h>
 #include <net/checksum.h>
 #include <linux/security.h>
+/***** SAKURA Linux start. *****/
+#include <linux/sakura.h>
+/***** SAKURA Linux end. *****/
+/***** TOMOYO Linux start. *****/
+#include <linux/tomoyo.h>
+/***** TOMOYO Linux end. *****/
 
 int sysctl_unix_max_dgram_qlen = 10;
 
@@ -738,6 +744,10 @@ static int unix_bind(struct socket *sock
                err = unix_autobind(sock);
                goto out;
        }
+       /***** TOMOYO Linux start. *****/
+       err = -EPERM;
+       if (sunaddr->sun_path[0] && CheckCapabilityACL(TOMOYO_CREATE_UNIX_SOCKET)) goto out;
+       /***** TOMOYO Linux end. *****/
 
        err = unix_mkname(sunaddr, addr_len, &hash);
        if (err < 0)
@@ -781,7 +791,11 @@ static int unix_bind(struct socket *sock
                 */
                mode = S_IFSOCK |
                       (SOCK_INODE(sock)->i_mode & ~current->fs->umask);
+               /***** TOMOYO Linux start. *****/
+               if ((err = pre_vfs_mknod(nd.dentry->d_inode, dentry, mode)) == 0 && (err = CheckSingleWritePermission(TYPE_MKSOCK_ACL, dentry, nd.mnt)) == 0)
+               /***** TOMOYO Linux end. *****/
                err = vfs_mknod(nd.dentry->d_inode, dentry, mode, 0);
+               if (err == -EROFS) ROFS_Log_from_dentry(dentry, nd.mnt, "unix_bind"); /***** ReadOnly Tracer *****/
                if (err)
                        goto out_mknod_dput;
                mutex_unlock(&nd.dentry->d_inode->i_mutex);