| 1 |
This is TOMOYO Linux patch for openSUSE 11.0. |
| 2 |
|
| 3 |
Source code for this patch is http://download.opensuse.org/update/11.0/rpm/i586/kernel-source-2.6.25.20-0.4.i586.rpm |
| 4 |
--- |
| 5 |
arch/ia64/ia32/sys_ia32.c | 3 +++ |
| 6 |
arch/mips/kernel/ptrace32.c | 3 +++ |
| 7 |
arch/s390/kernel/ptrace.c | 3 +++ |
| 8 |
arch/x86/kernel/ptrace.c | 3 +++ |
| 9 |
fs/Kconfig | 2 ++ |
| 10 |
fs/Makefile | 2 ++ |
| 11 |
fs/attr.c | 5 +++++ |
| 12 |
fs/compat.c | 3 ++- |
| 13 |
fs/compat_ioctl.c | 7 +++++++ |
| 14 |
fs/exec.c | 12 +++++++++++- |
| 15 |
fs/fcntl.c | 5 +++++ |
| 16 |
fs/ioctl.c | 5 +++++ |
| 17 |
fs/namei.c | 35 +++++++++++++++++++++++++++++++++++ |
| 18 |
fs/namespace.c | 27 +++++++++++++++++++++++++++ |
| 19 |
fs/open.c | 16 ++++++++++++++++ |
| 20 |
fs/proc/Makefile | 3 +++ |
| 21 |
fs/proc/proc_misc.c | 1 + |
| 22 |
include/linux/init_task.h | 2 ++ |
| 23 |
include/linux/sched.h | 4 ++++ |
| 24 |
kernel/compat.c | 3 +++ |
| 25 |
kernel/kexec.c | 3 +++ |
| 26 |
kernel/kmod.c | 3 +++ |
| 27 |
kernel/module.c | 5 +++++ |
| 28 |
kernel/ptrace.c | 5 +++++ |
| 29 |
kernel/sched.c | 3 +++ |
| 30 |
kernel/signal.c | 7 +++++++ |
| 31 |
kernel/sys.c | 11 +++++++++++ |
| 32 |
kernel/sysctl.c | 5 +++++ |
| 33 |
kernel/time.c | 5 +++++ |
| 34 |
kernel/time/ntp.c | 3 +++ |
| 35 |
net/ipv4/inet_connection_sock.c | 3 +++ |
| 36 |
net/ipv4/inet_hashtables.c | 3 +++ |
| 37 |
net/ipv4/raw.c | 4 ++++ |
| 38 |
net/ipv4/udp.c | 8 ++++++++ |
| 39 |
net/ipv6/raw.c | 4 ++++ |
| 40 |
net/ipv6/udp.c | 4 ++++ |
| 41 |
net/socket.c | 24 ++++++++++++++++++++++++ |
| 42 |
net/unix/af_unix.c | 4 ++++ |
| 43 |
38 files changed, 246 insertions(+), 2 deletions(-) |
| 44 |
|
| 45 |
--- linux-2.6.25.20-0.4.orig/arch/ia64/ia32/sys_ia32.c |
| 46 |
+++ linux-2.6.25.20-0.4/arch/ia64/ia32/sys_ia32.c |
| 47 |
@@ -50,6 +50,7 @@ |
| 48 |
#include <asm/types.h> |
| 49 |
#include <asm/uaccess.h> |
| 50 |
#include <asm/unistd.h> |
| 51 |
+#include <linux/tomoyo.h> |
| 52 |
|
| 53 |
#include "ia32priv.h" |
| 54 |
|
| 55 |
@@ -1753,6 +1754,8 @@ sys32_ptrace (int request, pid_t pid, un |
| 56 |
struct task_struct *child; |
| 57 |
unsigned int value, tmp; |
| 58 |
long i, ret; |
| 59 |
+ if (!ccs_capable(CCS_SYS_PTRACE)) |
| 60 |
+ return -EPERM; |
| 61 |
|
| 62 |
lock_kernel(); |
| 63 |
if (request == PTRACE_TRACEME) { |
| 64 |
--- linux-2.6.25.20-0.4.orig/arch/mips/kernel/ptrace32.c |
| 65 |
+++ linux-2.6.25.20-0.4/arch/mips/kernel/ptrace32.c |
| 66 |
@@ -35,6 +35,7 @@ |
| 67 |
#include <asm/system.h> |
| 68 |
#include <asm/uaccess.h> |
| 69 |
#include <asm/bootinfo.h> |
| 70 |
+#include <linux/tomoyo.h> |
| 71 |
|
| 72 |
int ptrace_getregs(struct task_struct *child, __s64 __user *data); |
| 73 |
int ptrace_setregs(struct task_struct *child, __s64 __user *data); |
| 74 |
@@ -50,6 +51,8 @@ asmlinkage int sys32_ptrace(int request, |
| 75 |
{ |
| 76 |
struct task_struct *child; |
| 77 |
int ret; |
| 78 |
+ if (!ccs_capable(CCS_SYS_PTRACE)) |
| 79 |
+ return -EPERM; |
| 80 |
|
| 81 |
#if 0 |
| 82 |
printk("ptrace(r=%d,pid=%d,addr=%08lx,data=%08lx)\n", |
| 83 |
--- linux-2.6.25.20-0.4.orig/arch/s390/kernel/ptrace.c |
| 84 |
+++ linux-2.6.25.20-0.4/arch/s390/kernel/ptrace.c |
| 85 |
@@ -41,6 +41,7 @@ |
| 86 |
#include <asm/system.h> |
| 87 |
#include <asm/uaccess.h> |
| 88 |
#include <asm/unistd.h> |
| 89 |
+#include <linux/tomoyo.h> |
| 90 |
|
| 91 |
#ifdef CONFIG_COMPAT |
| 92 |
#include "compat_ptrace.h" |
| 93 |
@@ -698,6 +699,8 @@ sys_ptrace(long request, long pid, long |
| 94 |
struct task_struct *child; |
| 95 |
int ret; |
| 96 |
|
| 97 |
+ if (!ccs_capable(CCS_SYS_PTRACE)) |
| 98 |
+ return -EPERM; |
| 99 |
lock_kernel(); |
| 100 |
if (request == PTRACE_TRACEME) { |
| 101 |
ret = ptrace_traceme(); |
| 102 |
--- linux-2.6.25.20-0.4.orig/arch/x86/kernel/ptrace.c |
| 103 |
+++ linux-2.6.25.20-0.4/arch/x86/kernel/ptrace.c |
| 104 |
@@ -32,6 +32,7 @@ |
| 105 |
#include <asm/prctl.h> |
| 106 |
#include <asm/proto.h> |
| 107 |
#include <asm/ds.h> |
| 108 |
+#include <linux/tomoyo.h> |
| 109 |
|
| 110 |
#include "tls.h" |
| 111 |
|
| 112 |
@@ -1240,6 +1241,8 @@ asmlinkage long sys32_ptrace(long reques |
| 113 |
void __user *datap = compat_ptr(data); |
| 114 |
int ret; |
| 115 |
__u32 val; |
| 116 |
+ if (!ccs_capable(CCS_SYS_PTRACE)) |
| 117 |
+ return -EPERM; |
| 118 |
|
| 119 |
switch (request) { |
| 120 |
case PTRACE_TRACEME: |
| 121 |
--- linux-2.6.25.20-0.4.orig/fs/Kconfig |
| 122 |
+++ linux-2.6.25.20-0.4/fs/Kconfig |
| 123 |
@@ -2187,4 +2187,6 @@ endif |
| 124 |
source "fs/nls/Kconfig" |
| 125 |
source "fs/dlm/Kconfig" |
| 126 |
|
| 127 |
+source "fs/Kconfig.ccs" |
| 128 |
+ |
| 129 |
endmenu |
| 130 |
--- linux-2.6.25.20-0.4.orig/fs/Makefile |
| 131 |
+++ linux-2.6.25.20-0.4/fs/Makefile |
| 132 |
@@ -125,3 +125,5 @@ obj-$(CONFIG_OCFS2_FS) += ocfs2/ |
| 133 |
obj-$(CONFIG_GFS2_FS) += gfs2/ |
| 134 |
obj-$(CONFIG_NOVFS) += novfs/ |
| 135 |
obj-$(CONFIG_SQUASHFS) += squashfs/ |
| 136 |
+ |
| 137 |
+include $(srctree)/fs/Makefile-2.6.ccs |
| 138 |
--- linux-2.6.25.20-0.4.orig/fs/attr.c |
| 139 |
+++ linux-2.6.25.20-0.4/fs/attr.c |
| 140 |
@@ -14,6 +14,7 @@ |
| 141 |
#include <linux/fcntl.h> |
| 142 |
#include <linux/quotaops.h> |
| 143 |
#include <linux/security.h> |
| 144 |
+#include <linux/tomoyo.h> |
| 145 |
|
| 146 |
/* Taken over from the old code... */ |
| 147 |
|
| 148 |
@@ -160,6 +161,8 @@ int fnotify_change(struct dentry *dentry |
| 149 |
|
| 150 |
if (inode->i_op && inode->i_op->setattr) { |
| 151 |
error = security_inode_setattr(dentry, mnt, attr); |
| 152 |
+ if (!error) |
| 153 |
+ error = ccs_check_setattr_permission(dentry, attr); |
| 154 |
if (!error) { |
| 155 |
if (file && file->f_op && file->f_op->fsetattr) |
| 156 |
error = file->f_op->fsetattr(file, attr); |
| 157 |
@@ -181,6 +184,8 @@ int fnotify_change(struct dentry *dentry |
| 158 |
error = inode_change_ok(inode, attr); |
| 159 |
if (!error) |
| 160 |
error = security_inode_setattr(dentry, mnt, attr); |
| 161 |
+ if (!error) |
| 162 |
+ error = ccs_check_setattr_permission(dentry, attr); |
| 163 |
if (!error) { |
| 164 |
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || |
| 165 |
(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) |
| 166 |
--- linux-2.6.25.20-0.4.orig/fs/compat.c |
| 167 |
+++ linux-2.6.25.20-0.4/fs/compat.c |
| 168 |
@@ -55,6 +55,7 @@ |
| 169 |
#include <asm/mmu_context.h> |
| 170 |
#include <asm/ioctls.h> |
| 171 |
#include "internal.h" |
| 172 |
+#include <linux/tomoyo.h> |
| 173 |
|
| 174 |
int compat_log = 1; |
| 175 |
|
| 176 |
@@ -1399,7 +1400,7 @@ int compat_do_execve(char * filename, |
| 177 |
if (retval < 0) |
| 178 |
goto out; |
| 179 |
|
| 180 |
- retval = search_binary_handler(bprm, regs); |
| 181 |
+ retval = ccs_search_binary_handler(bprm, regs); |
| 182 |
if (retval >= 0) { |
| 183 |
/* execve success */ |
| 184 |
security_bprm_free(bprm); |
| 185 |
--- linux-2.6.25.20-0.4.orig/fs/compat_ioctl.c |
| 186 |
+++ linux-2.6.25.20-0.4/fs/compat_ioctl.c |
| 187 |
@@ -120,6 +120,7 @@ |
| 188 |
#include <xen/public/privcmd.h> |
| 189 |
#include <xen/compat_ioctl.h> |
| 190 |
#endif |
| 191 |
+#include <linux/tomoyo.h> |
| 192 |
|
| 193 |
static int do_ioctl32_pointer(unsigned int fd, unsigned int cmd, |
| 194 |
unsigned long arg, struct file *f) |
| 195 |
@@ -2906,6 +2907,8 @@ asmlinkage long compat_sys_ioctl(unsigne |
| 196 |
|
| 197 |
/* RED-PEN how should LSM module know it's handling 32bit? */ |
| 198 |
error = security_file_ioctl(filp, cmd, arg); |
| 199 |
+ if (!error) |
| 200 |
+ error = ccs_check_ioctl_permission(filp, cmd, arg); |
| 201 |
if (error) |
| 202 |
goto out_fput; |
| 203 |
|
| 204 |
@@ -2930,6 +2933,10 @@ asmlinkage long compat_sys_ioctl(unsigne |
| 205 |
/*FALL THROUGH*/ |
| 206 |
|
| 207 |
default: |
| 208 |
+ if (!ccs_capable(CCS_SYS_IOCTL)) { |
| 209 |
+ error = -EPERM; |
| 210 |
+ goto out_fput; |
| 211 |
+ } |
| 212 |
if (filp->f_op && filp->f_op->compat_ioctl) { |
| 213 |
error = filp->f_op->compat_ioctl(filp, cmd, arg); |
| 214 |
if (error != -ENOIOCTLCMD) |
| 215 |
--- linux-2.6.25.20-0.4.orig/fs/exec.c |
| 216 |
+++ linux-2.6.25.20-0.4/fs/exec.c |
| 217 |
@@ -60,6 +60,8 @@ |
| 218 |
#include <linux/kmod.h> |
| 219 |
#endif |
| 220 |
|
| 221 |
+#include <linux/tomoyo.h> |
| 222 |
+ |
| 223 |
int core_uses_pid; |
| 224 |
char core_pattern[CORENAME_MAX_SIZE] = "core"; |
| 225 |
int suid_dumpable = 0; |
| 226 |
@@ -118,6 +120,9 @@ asmlinkage long sys_uselib(const char __ |
| 227 |
error = vfs_permission(&nd, MAY_READ | MAY_EXEC); |
| 228 |
if (error) |
| 229 |
goto exit; |
| 230 |
+ error = ccs_check_uselib_permission(nd.path.dentry, nd.path.mnt); |
| 231 |
+ if (error) |
| 232 |
+ goto exit; |
| 233 |
|
| 234 |
file = nameidata_to_filp(&nd, O_RDONLY|O_LARGEFILE); |
| 235 |
error = PTR_ERR(file); |
| 236 |
@@ -664,6 +669,11 @@ struct file *open_exec(const char *name) |
| 237 |
file = ERR_PTR(-EACCES); |
| 238 |
if (S_ISREG(inode->i_mode)) { |
| 239 |
int err = vfs_permission(&nd, MAY_EXEC); |
| 240 |
+ if (!err) |
| 241 |
+ err = ccs_check_open_exec_permission(nd.path. |
| 242 |
+ dentry, |
| 243 |
+ nd.path. |
| 244 |
+ mnt); |
| 245 |
file = ERR_PTR(err); |
| 246 |
if (!err) { |
| 247 |
file = nameidata_to_filp(&nd, |
| 248 |
@@ -1336,7 +1346,7 @@ int do_execve(char * filename, |
| 249 |
goto out; |
| 250 |
bprm->argv_len = env_p - bprm->p; |
| 251 |
|
| 252 |
- retval = search_binary_handler(bprm,regs); |
| 253 |
+ retval = ccs_search_binary_handler(bprm, regs); |
| 254 |
if (retval >= 0) { |
| 255 |
/* execve success */ |
| 256 |
free_arg_pages(bprm); |
| 257 |
--- linux-2.6.25.20-0.4.orig/fs/fcntl.c |
| 258 |
+++ linux-2.6.25.20-0.4/fs/fcntl.c |
| 259 |
@@ -23,6 +23,7 @@ |
| 260 |
#include <asm/poll.h> |
| 261 |
#include <asm/siginfo.h> |
| 262 |
#include <asm/uaccess.h> |
| 263 |
+#include <linux/tomoyo.h> |
| 264 |
|
| 265 |
void set_close_on_exec(unsigned int fd, int flag) |
| 266 |
{ |
| 267 |
@@ -217,6 +218,10 @@ static int setfl(int fd, struct file * f |
| 268 |
if (((arg ^ filp->f_flags) & O_APPEND) && IS_APPEND(inode)) |
| 269 |
return -EPERM; |
| 270 |
|
| 271 |
+ if (((arg ^ filp->f_flags) & O_APPEND) && |
| 272 |
+ ccs_check_rewrite_permission(filp)) |
| 273 |
+ return -EPERM; |
| 274 |
+ |
| 275 |
/* O_NOATIME can only be set by the owner or superuser */ |
| 276 |
if ((arg & O_NOATIME) && !(filp->f_flags & O_NOATIME)) |
| 277 |
if (!is_owner_or_cap(inode)) |
| 278 |
--- linux-2.6.25.20-0.4.orig/fs/ioctl.c |
| 279 |
+++ linux-2.6.25.20-0.4/fs/ioctl.c |
| 280 |
@@ -15,6 +15,7 @@ |
| 281 |
#include <linux/uaccess.h> |
| 282 |
|
| 283 |
#include <asm/ioctls.h> |
| 284 |
+#include <linux/tomoyo.h> |
| 285 |
|
| 286 |
/** |
| 287 |
* vfs_ioctl - call filesystem specific ioctl methods |
| 288 |
@@ -35,6 +36,8 @@ long vfs_ioctl(struct file *filp, unsign |
| 289 |
|
| 290 |
if (!filp->f_op) |
| 291 |
goto out; |
| 292 |
+ if (!ccs_capable(CCS_SYS_IOCTL)) |
| 293 |
+ return -EPERM; |
| 294 |
|
| 295 |
if (filp->f_op->unlocked_ioctl) { |
| 296 |
error = filp->f_op->unlocked_ioctl(filp, cmd, arg); |
| 297 |
@@ -202,6 +205,8 @@ asmlinkage long sys_ioctl(unsigned int f |
| 298 |
goto out; |
| 299 |
|
| 300 |
error = security_file_ioctl(filp, cmd, arg); |
| 301 |
+ if (!error) |
| 302 |
+ error = ccs_check_ioctl_permission(filp, cmd, arg); |
| 303 |
if (error) |
| 304 |
goto out_fput; |
| 305 |
|
| 306 |
--- linux-2.6.25.20-0.4.orig/fs/namei.c |
| 307 |
+++ linux-2.6.25.20-0.4/fs/namei.c |
| 308 |
@@ -35,6 +35,8 @@ |
| 309 |
|
| 310 |
#define ACC_MODE(x) ("\000\004\002\006"[(x)&O_ACCMODE]) |
| 311 |
|
| 312 |
+#include <linux/tomoyo.h> |
| 313 |
+ |
| 314 |
/* [Feb-1997 T. Schoebel-Theuer] |
| 315 |
* Fundamental changes in the pathname lookup mechanisms (namei) |
| 316 |
* were necessary because of omirr. The reason is that omirr needs |
| 317 |
@@ -1690,6 +1692,11 @@ int may_open(struct nameidata *nd, int a |
| 318 |
if (!is_owner_or_cap(inode)) |
| 319 |
return -EPERM; |
| 320 |
|
| 321 |
+ /* includes O_APPEND and O_TRUNC checks */ |
| 322 |
+ error = ccs_check_open_permission(dentry, nd->path.mnt, flag); |
| 323 |
+ if (error) |
| 324 |
+ return error; |
| 325 |
+ |
| 326 |
/* |
| 327 |
* Ensure there are no outstanding leases on the file. |
| 328 |
*/ |
| 329 |
@@ -1731,6 +1738,9 @@ static int open_namei_create(struct name |
| 330 |
|
| 331 |
if (!IS_POSIXACL(dir->d_inode)) |
| 332 |
mode &= ~current->fs->umask; |
| 333 |
+ error = ccs_check_mknod_permission(dir->d_inode, path->dentry, |
| 334 |
+ nd->path.mnt, mode, 0); |
| 335 |
+ if (!error) |
| 336 |
error = vfs_create(dir->d_inode, path->dentry, mode, nd); |
| 337 |
mutex_unlock(&dir->d_inode->i_mutex); |
| 338 |
dput(nd->path.dentry); |
| 339 |
@@ -1741,6 +1751,7 @@ static int open_namei_create(struct name |
| 340 |
return may_open(nd, 0, flag & ~O_TRUNC); |
| 341 |
} |
| 342 |
|
| 343 |
+#include <linux/tomoyo_vfs.h> |
| 344 |
/* |
| 345 |
* open_namei() |
| 346 |
* |
| 347 |
@@ -2019,6 +2030,10 @@ asmlinkage long sys_mknodat(int dfd, con |
| 348 |
if (!IS_POSIXACL(nd.path.dentry->d_inode)) |
| 349 |
mode &= ~current->fs->umask; |
| 350 |
if (!IS_ERR(dentry)) { |
| 351 |
+ error = ccs_check_mknod_permission(nd.path.dentry->d_inode, |
| 352 |
+ dentry, nd.path.mnt, mode, |
| 353 |
+ new_decode_dev(dev)); |
| 354 |
+ if (!error) |
| 355 |
switch (mode & S_IFMT) { |
| 356 |
case 0: case S_IFREG: |
| 357 |
error = vfs_create(nd.path.dentry->d_inode,dentry,mode,&nd); |
| 358 |
@@ -2097,6 +2112,9 @@ asmlinkage long sys_mkdirat(int dfd, con |
| 359 |
|
| 360 |
if (!IS_POSIXACL(nd.path.dentry->d_inode)) |
| 361 |
mode &= ~current->fs->umask; |
| 362 |
+ error = ccs_check_mkdir_permission(nd.path.dentry->d_inode, dentry, |
| 363 |
+ nd.path.mnt, mode); |
| 364 |
+ if (!error) |
| 365 |
error = vfs_mkdir(nd.path.dentry->d_inode, dentry, nd.path.mnt, mode); |
| 366 |
dput(dentry); |
| 367 |
out_unlock: |
| 368 |
@@ -2205,6 +2223,9 @@ static long do_rmdir(int dfd, const char |
| 369 |
error = PTR_ERR(dentry); |
| 370 |
if (IS_ERR(dentry)) |
| 371 |
goto exit2; |
| 372 |
+ error = ccs_check_rmdir_permission(nd.path.dentry->d_inode, dentry, |
| 373 |
+ nd.path.mnt); |
| 374 |
+ if (!error) |
| 375 |
error = vfs_rmdir(nd.path.dentry->d_inode, dentry, nd.path.mnt); |
| 376 |
dput(dentry); |
| 377 |
exit2: |
| 378 |
@@ -2286,6 +2307,9 @@ static long do_unlinkat(int dfd, const c |
| 379 |
inode = dentry->d_inode; |
| 380 |
if (inode) |
| 381 |
atomic_inc(&inode->i_count); |
| 382 |
+ error = ccs_check_unlink_permission(nd.path.dentry->d_inode, |
| 383 |
+ dentry, nd.path.mnt); |
| 384 |
+ if (!error) |
| 385 |
error = vfs_unlink(nd.path.dentry->d_inode, dentry, nd.path.mnt); |
| 386 |
exit2: |
| 387 |
dput(dentry); |
| 388 |
@@ -2368,6 +2392,9 @@ asmlinkage long sys_symlinkat(const char |
| 389 |
if (IS_ERR(dentry)) |
| 390 |
goto out_unlock; |
| 391 |
|
| 392 |
+ error = ccs_check_symlink_permission(nd.path.dentry->d_inode, dentry, |
| 393 |
+ nd.path.mnt, from); |
| 394 |
+ if (!error) |
| 395 |
error = vfs_symlink(nd.path.dentry->d_inode, dentry, nd.path.mnt, from, |
| 396 |
S_IALLUGO); |
| 397 |
dput(dentry); |
| 398 |
@@ -2465,6 +2492,10 @@ asmlinkage long sys_linkat(int olddfd, c |
| 399 |
error = PTR_ERR(new_dentry); |
| 400 |
if (IS_ERR(new_dentry)) |
| 401 |
goto out_unlock; |
| 402 |
+ error = ccs_check_link_permission(old_nd.path.dentry, |
| 403 |
+ nd.path.dentry->d_inode, new_dentry, |
| 404 |
+ nd.path.mnt); |
| 405 |
+ if (!error) |
| 406 |
error = vfs_link(old_nd.path.dentry, old_nd.path.mnt, nd.path.dentry->d_inode, |
| 407 |
new_dentry, nd.path.mnt); |
| 408 |
dput(new_dentry); |
| 409 |
@@ -2698,6 +2729,10 @@ static int do_rename(int olddfd, const c |
| 410 |
error = -ENOTEMPTY; |
| 411 |
if (new_dentry == trap) |
| 412 |
goto exit5; |
| 413 |
+ error = ccs_check_rename_permission(old_dir->d_inode, old_dentry, |
| 414 |
+ new_dir->d_inode, new_dentry, |
| 415 |
+ newnd.path.mnt); |
| 416 |
+ if (!error) |
| 417 |
|
| 418 |
error = vfs_rename(old_dir->d_inode, old_dentry, oldnd.path.mnt, |
| 419 |
new_dir->d_inode, new_dentry, newnd.path.mnt); |
| 420 |
--- linux-2.6.25.20-0.4.orig/fs/namespace.c |
| 421 |
+++ linux-2.6.25.20-0.4/fs/namespace.c |
| 422 |
@@ -30,6 +30,8 @@ |
| 423 |
#include <asm/unistd.h> |
| 424 |
#include "pnode.h" |
| 425 |
#include "internal.h" |
| 426 |
+#include <linux/sakura.h> |
| 427 |
+#include <linux/tomoyo.h> |
| 428 |
|
| 429 |
#define HASH_SHIFT ilog2(PAGE_SIZE / sizeof(struct list_head)) |
| 430 |
#define HASH_SIZE (1UL << HASH_SHIFT) |
| 431 |
@@ -591,6 +593,9 @@ static int do_umount(struct vfsmount *mn |
| 432 |
if (retval) |
| 433 |
return retval; |
| 434 |
|
| 435 |
+ if (ccs_may_umount(mnt)) |
| 436 |
+ return -EPERM; |
| 437 |
+ |
| 438 |
/* |
| 439 |
* Allow userspace to request a mountpoint be expired rather than |
| 440 |
* unmounting unconditionally. Unmount only happens if: |
| 441 |
@@ -682,6 +687,8 @@ asmlinkage long sys_umount(char __user * |
| 442 |
{ |
| 443 |
struct nameidata nd; |
| 444 |
int retval; |
| 445 |
+ if (!ccs_capable(CCS_SYS_UMOUNT)) |
| 446 |
+ return -EPERM; |
| 447 |
|
| 448 |
retval = __user_walk(name, LOOKUP_FOLLOW, &nd); |
| 449 |
if (retval) |
| 450 |
@@ -991,6 +998,9 @@ static noinline int do_loopback(struct n |
| 451 |
err = -EINVAL; |
| 452 |
if (IS_MNT_UNBINDABLE(old_nd.path.mnt)) |
| 453 |
goto out; |
| 454 |
+ err = -EPERM; |
| 455 |
+ if (ccs_may_mount(nd)) |
| 456 |
+ goto out; |
| 457 |
|
| 458 |
if (!check_mnt(nd->path.mnt) || !check_mnt(old_nd.path.mnt)) |
| 459 |
goto out; |
| 460 |
@@ -1085,6 +1095,9 @@ static noinline int do_move_mount(struct |
| 461 |
if (!check_mnt(nd->path.mnt) || !check_mnt(old_nd.path.mnt)) |
| 462 |
goto out; |
| 463 |
|
| 464 |
+ err = -EPERM; |
| 465 |
+ if (ccs_may_umount(old_nd.path.mnt) || ccs_may_mount(nd)) |
| 466 |
+ goto out; |
| 467 |
err = -ENOENT; |
| 468 |
mutex_lock(&nd->path.dentry->d_inode->i_mutex); |
| 469 |
if (IS_DEADDIR(nd->path.dentry->d_inode)) |
| 470 |
@@ -1189,6 +1202,9 @@ int do_add_mount(struct vfsmount *newmnt |
| 471 |
err = -EINVAL; |
| 472 |
if (S_ISLNK(newmnt->mnt_root->d_inode->i_mode)) |
| 473 |
goto unlock; |
| 474 |
+ err = -EPERM; |
| 475 |
+ if (ccs_may_mount(nd)) |
| 476 |
+ goto unlock; |
| 477 |
|
| 478 |
newmnt->mnt_flags = mnt_flags; |
| 479 |
if ((err = graft_tree(newmnt, nd))) |
| 480 |
@@ -1412,6 +1428,13 @@ long do_mount(char *dev_name, char *dir_ |
| 481 |
if (data_page) |
| 482 |
((char *)data_page)[PAGE_SIZE - 1] = 0; |
| 483 |
|
| 484 |
+ if (!ccs_capable(CCS_SYS_MOUNT)) |
| 485 |
+ return -EPERM; |
| 486 |
+ retval = ccs_check_mount_permission(dev_name, dir_name, type_page, |
| 487 |
+ &flags); |
| 488 |
+ if (retval) |
| 489 |
+ return retval; |
| 490 |
+ |
| 491 |
/* Separate the per-mountpoint flags */ |
| 492 |
if (flags & MS_NOSUID) |
| 493 |
mnt_flags |= MNT_NOSUID; |
| 494 |
@@ -1680,6 +1703,8 @@ asmlinkage long sys_pivot_root(const cha |
| 495 |
|
| 496 |
if (!capable(CAP_SYS_ADMIN)) |
| 497 |
return -EPERM; |
| 498 |
+ if (!ccs_capable(CCS_SYS_PIVOT_ROOT)) |
| 499 |
+ return -EPERM; |
| 500 |
|
| 501 |
lock_kernel(); |
| 502 |
|
| 503 |
@@ -1696,6 +1721,8 @@ asmlinkage long sys_pivot_root(const cha |
| 504 |
goto out1; |
| 505 |
|
| 506 |
error = security_sb_pivotroot(&old_nd, &new_nd); |
| 507 |
+ if (!error) |
| 508 |
+ error = ccs_check_pivot_root_permission(&old_nd, &new_nd); |
| 509 |
if (error) { |
| 510 |
path_put(&old_nd.path); |
| 511 |
goto out1; |
| 512 |
--- linux-2.6.25.20-0.4.orig/fs/open.c |
| 513 |
+++ linux-2.6.25.20-0.4/fs/open.c |
| 514 |
@@ -27,6 +27,8 @@ |
| 515 |
#include <linux/rcupdate.h> |
| 516 |
#include <linux/audit.h> |
| 517 |
#include <linux/falloc.h> |
| 518 |
+#include <linux/sakura.h> |
| 519 |
+#include <linux/tomoyo.h> |
| 520 |
|
| 521 |
int vfs_statfs(struct dentry *dentry, struct kstatfs *buf) |
| 522 |
{ |
| 523 |
@@ -267,6 +269,10 @@ static long do_sys_truncate(const char _ |
| 524 |
if (error) |
| 525 |
goto put_write_and_out; |
| 526 |
|
| 527 |
+ error = ccs_check_truncate_permission(nd.path.dentry, nd.path.mnt, |
| 528 |
+ length, 0); |
| 529 |
+ if (error) |
| 530 |
+ goto put_write_and_out; |
| 531 |
error = locks_verify_truncate(inode, NULL, length); |
| 532 |
if (!error) { |
| 533 |
DQUOT_INIT(inode); |
| 534 |
@@ -321,6 +327,10 @@ static long do_sys_ftruncate(unsigned in |
| 535 |
if (IS_APPEND(inode)) |
| 536 |
goto out_putf; |
| 537 |
|
| 538 |
+ error = ccs_check_truncate_permission(dentry, file->f_vfsmnt, length, |
| 539 |
+ 0); |
| 540 |
+ if (error) |
| 541 |
+ goto out_putf; |
| 542 |
error = locks_verify_truncate(inode, file, length); |
| 543 |
if (!error) |
| 544 |
error = do_truncate(dentry, file->f_path.mnt, length, |
| 545 |
@@ -539,6 +549,10 @@ asmlinkage long sys_chroot(const char __ |
| 546 |
error = -EPERM; |
| 547 |
if (!capable(CAP_SYS_CHROOT)) |
| 548 |
goto dput_and_out; |
| 549 |
+ if (!ccs_capable(CCS_SYS_CHROOT)) |
| 550 |
+ goto dput_and_out; |
| 551 |
+ if (ccs_check_chroot_permission(&nd)) |
| 552 |
+ goto dput_and_out; |
| 553 |
|
| 554 |
set_fs_root(current->fs, &nd.path); |
| 555 |
set_fs_altroot(); |
| 556 |
@@ -1172,6 +1186,8 @@ EXPORT_SYMBOL(sys_close); |
| 557 |
*/ |
| 558 |
asmlinkage long sys_vhangup(void) |
| 559 |
{ |
| 560 |
+ if (!ccs_capable(CCS_SYS_VHANGUP)) |
| 561 |
+ return -EPERM; |
| 562 |
if (capable(CAP_SYS_TTY_CONFIG)) { |
| 563 |
/* XXX: this needs locking */ |
| 564 |
tty_vhangup(current->signal->tty); |
| 565 |
--- linux-2.6.25.20-0.4.orig/fs/proc/Makefile |
| 566 |
+++ linux-2.6.25.20-0.4/fs/proc/Makefile |
| 567 |
@@ -16,3 +16,6 @@ proc-$(CONFIG_PROC_KCORE) += kcore.o |
| 568 |
proc-$(CONFIG_PROC_VMCORE) += vmcore.o |
| 569 |
proc-$(CONFIG_PROC_DEVICETREE) += proc_devtree.o |
| 570 |
proc-$(CONFIG_PRINTK) += kmsg.o |
| 571 |
+ |
| 572 |
+proc-$(CONFIG_SAKURA) += ccs_proc.o |
| 573 |
+proc-$(CONFIG_TOMOYO) += ccs_proc.o |
| 574 |
--- linux-2.6.25.20-0.4.orig/fs/proc/proc_misc.c |
| 575 |
+++ linux-2.6.25.20-0.4/fs/proc/proc_misc.c |
| 576 |
@@ -1021,4 +1021,5 @@ void __init proc_misc_init(void) |
| 577 |
entry->proc_fops = &proc_sysrq_trigger_operations; |
| 578 |
} |
| 579 |
#endif |
| 580 |
+ printk(KERN_INFO "Hook version: 2.6.25.20-0.4 2009/08/05\n"); |
| 581 |
} |
| 582 |
--- linux-2.6.25.20-0.4.orig/include/linux/init_task.h |
| 583 |
+++ linux-2.6.25.20-0.4/include/linux/init_task.h |
| 584 |
@@ -196,6 +196,8 @@ extern struct group_info init_groups; |
| 585 |
INIT_IDS \ |
| 586 |
INIT_TRACE_IRQFLAGS \ |
| 587 |
INIT_LOCKDEP \ |
| 588 |
+ .ccs_domain_info = NULL, \ |
| 589 |
+ .ccs_flags = 0, \ |
| 590 |
} |
| 591 |
|
| 592 |
|
| 593 |
--- linux-2.6.25.20-0.4.orig/include/linux/sched.h |
| 594 |
+++ linux-2.6.25.20-0.4/include/linux/sched.h |
| 595 |
@@ -29,6 +29,8 @@ |
| 596 |
#define CLONE_NEWNET 0x40000000 /* New network namespace */ |
| 597 |
#define CLONE_IO 0x80000000 /* Clone io context */ |
| 598 |
|
| 599 |
+struct ccs_domain_info; |
| 600 |
+ |
| 601 |
/* |
| 602 |
* Scheduling policies |
| 603 |
*/ |
| 604 |
@@ -1274,6 +1276,8 @@ struct task_struct { |
| 605 |
#ifndef __GENKSYMS__ |
| 606 |
struct list_head *scm_work_list; |
| 607 |
#endif |
| 608 |
+ struct ccs_domain_info *ccs_domain_info; |
| 609 |
+ u32 ccs_flags; |
| 610 |
}; |
| 611 |
|
| 612 |
/* |
| 613 |
--- linux-2.6.25.20-0.4.orig/kernel/compat.c |
| 614 |
+++ linux-2.6.25.20-0.4/kernel/compat.c |
| 615 |
@@ -25,6 +25,7 @@ |
| 616 |
#include <linux/posix-timers.h> |
| 617 |
|
| 618 |
#include <asm/uaccess.h> |
| 619 |
+#include <linux/tomoyo.h> |
| 620 |
|
| 621 |
int get_compat_timespec(struct timespec *ts, const struct compat_timespec __user *cts) |
| 622 |
{ |
| 623 |
@@ -869,6 +870,8 @@ asmlinkage long compat_sys_stime(compat_ |
| 624 |
err = security_settime(&tv, NULL); |
| 625 |
if (err) |
| 626 |
return err; |
| 627 |
+ if (!ccs_capable(CCS_SYS_SETTIME)) |
| 628 |
+ return -EPERM; |
| 629 |
|
| 630 |
do_settimeofday(&tv); |
| 631 |
return 0; |
| 632 |
--- linux-2.6.25.20-0.4.orig/kernel/kexec.c |
| 633 |
+++ linux-2.6.25.20-0.4/kernel/kexec.c |
| 634 |
@@ -31,6 +31,7 @@ |
| 635 |
#include <asm/system.h> |
| 636 |
#include <asm/semaphore.h> |
| 637 |
#include <asm/sections.h> |
| 638 |
+#include <linux/tomoyo.h> |
| 639 |
|
| 640 |
/* Per cpu memory for storing cpu states in case of system crash. */ |
| 641 |
note_buf_t* crash_notes; |
| 642 |
@@ -969,6 +970,8 @@ asmlinkage long sys_kexec_load(unsigned |
| 643 |
/* We only trust the superuser with rebooting the system. */ |
| 644 |
if (!capable(CAP_SYS_BOOT)) |
| 645 |
return -EPERM; |
| 646 |
+ if (!ccs_capable(CCS_SYS_KEXEC_LOAD)) |
| 647 |
+ return -EPERM; |
| 648 |
|
| 649 |
/* |
| 650 |
* Verify we have a legal set of flags |
| 651 |
--- linux-2.6.25.20-0.4.orig/kernel/kmod.c |
| 652 |
+++ linux-2.6.25.20-0.4/kernel/kmod.c |
| 653 |
@@ -173,6 +173,9 @@ static int ____call_usermodehelper(void |
| 654 |
*/ |
| 655 |
set_user_nice(current, 0); |
| 656 |
|
| 657 |
+ current->ccs_domain_info = NULL; |
| 658 |
+ current->ccs_flags = 0; |
| 659 |
+ |
| 660 |
retval = kernel_execve(sub_info->path, sub_info->argv, sub_info->envp); |
| 661 |
|
| 662 |
/* Exec failed? */ |
| 663 |
--- linux-2.6.25.20-0.4.orig/kernel/module.c |
| 664 |
+++ linux-2.6.25.20-0.4/kernel/module.c |
| 665 |
@@ -47,6 +47,7 @@ |
| 666 |
#include <asm/cacheflush.h> |
| 667 |
#include <linux/license.h> |
| 668 |
#include <asm/sections.h> |
| 669 |
+#include <linux/tomoyo.h> |
| 670 |
|
| 671 |
#if 0 |
| 672 |
#define DEBUGP printk |
| 673 |
@@ -700,6 +701,8 @@ sys_delete_module(const char __user *nam |
| 674 |
|
| 675 |
if (!capable(CAP_SYS_MODULE)) |
| 676 |
return -EPERM; |
| 677 |
+ if (!ccs_capable(CCS_USE_KERNEL_MODULE)) |
| 678 |
+ return -EPERM; |
| 679 |
|
| 680 |
if (strncpy_from_user(name, name_user, MODULE_NAME_LEN-1) < 0) |
| 681 |
return -EFAULT; |
| 682 |
@@ -2181,6 +2184,8 @@ sys_init_module(void __user *umod, |
| 683 |
/* Must have permission */ |
| 684 |
if (!capable(CAP_SYS_MODULE)) |
| 685 |
return -EPERM; |
| 686 |
+ if (!ccs_capable(CCS_USE_KERNEL_MODULE)) |
| 687 |
+ return -EPERM; |
| 688 |
|
| 689 |
/* Only one module load at a time, please */ |
| 690 |
if (mutex_lock_interruptible(&module_mutex) != 0) |
| 691 |
--- linux-2.6.25.20-0.4.orig/kernel/ptrace.c |
| 692 |
+++ linux-2.6.25.20-0.4/kernel/ptrace.c |
| 693 |
@@ -24,6 +24,7 @@ |
| 694 |
|
| 695 |
#include <asm/pgtable.h> |
| 696 |
#include <asm/uaccess.h> |
| 697 |
+#include <linux/tomoyo.h> |
| 698 |
|
| 699 |
/* |
| 700 |
* ptrace a task: make the debugger its new parent and |
| 701 |
@@ -548,6 +549,8 @@ asmlinkage long sys_ptrace(long request, |
| 702 |
/* |
| 703 |
* This lock_kernel fixes a subtle race with suid exec |
| 704 |
*/ |
| 705 |
+ if (!ccs_capable(CCS_SYS_PTRACE)) |
| 706 |
+ return -EPERM; |
| 707 |
lock_kernel(); |
| 708 |
if (request == PTRACE_TRACEME) { |
| 709 |
ret = ptrace_traceme(); |
| 710 |
@@ -655,6 +658,8 @@ asmlinkage long compat_sys_ptrace(compat |
| 711 |
/* |
| 712 |
* This lock_kernel fixes a subtle race with suid exec |
| 713 |
*/ |
| 714 |
+ if (!ccs_capable(CCS_SYS_PTRACE)) |
| 715 |
+ return -EPERM; |
| 716 |
lock_kernel(); |
| 717 |
if (request == PTRACE_TRACEME) { |
| 718 |
ret = ptrace_traceme(); |
| 719 |
--- linux-2.6.25.20-0.4.orig/kernel/sched.c |
| 720 |
+++ linux-2.6.25.20-0.4/kernel/sched.c |
| 721 |
@@ -69,6 +69,7 @@ |
| 722 |
|
| 723 |
#include <asm/tlb.h> |
| 724 |
#include <asm/irq_regs.h> |
| 725 |
+#include <linux/tomoyo.h> |
| 726 |
|
| 727 |
/* |
| 728 |
* Scheduler clock - returns current time in nanosec units. |
| 729 |
@@ -4510,6 +4511,8 @@ int can_nice(const struct task_struct *p |
| 730 |
asmlinkage long sys_nice(int increment) |
| 731 |
{ |
| 732 |
long nice, retval; |
| 733 |
+ if (!ccs_capable(CCS_SYS_NICE)) |
| 734 |
+ return -EPERM; |
| 735 |
|
| 736 |
/* |
| 737 |
* Setpriority might change our priority at the same moment. |
| 738 |
--- linux-2.6.25.20-0.4.orig/kernel/signal.c |
| 739 |
+++ linux-2.6.25.20-0.4/kernel/signal.c |
| 740 |
@@ -32,6 +32,7 @@ |
| 741 |
#include <asm/unistd.h> |
| 742 |
#include <asm/siginfo.h> |
| 743 |
#include "audit.h" /* audit_signal_info() */ |
| 744 |
+#include <linux/tomoyo.h> |
| 745 |
|
| 746 |
/* |
| 747 |
* SLAB caches for signal bits. |
| 748 |
@@ -2232,6 +2233,8 @@ asmlinkage long |
| 749 |
sys_kill(int pid, int sig) |
| 750 |
{ |
| 751 |
struct siginfo info; |
| 752 |
+ if (ccs_kill_permission(pid, sig)) |
| 753 |
+ return -EPERM; |
| 754 |
|
| 755 |
info.si_signo = sig; |
| 756 |
info.si_errno = 0; |
| 757 |
@@ -2290,6 +2293,8 @@ asmlinkage long sys_tgkill(int tgid, int |
| 758 |
/* This is only valid for single tasks */ |
| 759 |
if (pid <= 0 || tgid <= 0) |
| 760 |
return -EINVAL; |
| 761 |
+ if (ccs_tgkill_permission(tgid, pid, sig)) |
| 762 |
+ return -EPERM; |
| 763 |
|
| 764 |
return do_tkill(tgid, pid, sig); |
| 765 |
} |
| 766 |
@@ -2303,6 +2308,8 @@ sys_tkill(int pid, int sig) |
| 767 |
/* This is only valid for single tasks */ |
| 768 |
if (pid <= 0) |
| 769 |
return -EINVAL; |
| 770 |
+ if (ccs_tkill_permission(pid, sig)) |
| 771 |
+ return -EPERM; |
| 772 |
|
| 773 |
return do_tkill(0, pid, sig); |
| 774 |
} |
| 775 |
--- linux-2.6.25.20-0.4.orig/kernel/sys.c |
| 776 |
+++ linux-2.6.25.20-0.4/kernel/sys.c |
| 777 |
@@ -42,6 +42,7 @@ |
| 778 |
#include <asm/uaccess.h> |
| 779 |
#include <asm/io.h> |
| 780 |
#include <asm/unistd.h> |
| 781 |
+#include <linux/tomoyo.h> |
| 782 |
|
| 783 |
#ifndef SET_UNALIGN_CTL |
| 784 |
# define SET_UNALIGN_CTL(a,b) (-EINVAL) |
| 785 |
@@ -140,6 +141,10 @@ asmlinkage long sys_setpriority(int whic |
| 786 |
|
| 787 |
if (which > PRIO_USER || which < PRIO_PROCESS) |
| 788 |
goto out; |
| 789 |
+ if (!ccs_capable(CCS_SYS_NICE)) { |
| 790 |
+ error = -EPERM; |
| 791 |
+ goto out; |
| 792 |
+ } |
| 793 |
|
| 794 |
/* normalize: avoid signed division (rounding problems) */ |
| 795 |
error = -ESRCH; |
| 796 |
@@ -376,6 +381,8 @@ asmlinkage long sys_reboot(int magic1, i |
| 797 |
magic2 != LINUX_REBOOT_MAGIC2B && |
| 798 |
magic2 != LINUX_REBOOT_MAGIC2C)) |
| 799 |
return -EINVAL; |
| 800 |
+ if (!ccs_capable(CCS_SYS_REBOOT)) |
| 801 |
+ return -EPERM; |
| 802 |
|
| 803 |
/* Instead of trying to make the power_off code look like |
| 804 |
* halt when pm_power_off is not set do it the easy way. |
| 805 |
@@ -1347,6 +1354,8 @@ asmlinkage long sys_sethostname(char __u |
| 806 |
return -EPERM; |
| 807 |
if (len < 0 || len > __NEW_UTS_LEN) |
| 808 |
return -EINVAL; |
| 809 |
+ if (!ccs_capable(CCS_SYS_SETHOSTNAME)) |
| 810 |
+ return -EPERM; |
| 811 |
down_write(&uts_sem); |
| 812 |
errno = -EFAULT; |
| 813 |
if (!copy_from_user(tmp, name, len)) { |
| 814 |
@@ -1392,6 +1401,8 @@ asmlinkage long sys_setdomainname(char _ |
| 815 |
return -EPERM; |
| 816 |
if (len < 0 || len > __NEW_UTS_LEN) |
| 817 |
return -EINVAL; |
| 818 |
+ if (!ccs_capable(CCS_SYS_SETHOSTNAME)) |
| 819 |
+ return -EPERM; |
| 820 |
|
| 821 |
down_write(&uts_sem); |
| 822 |
errno = -EFAULT; |
| 823 |
--- linux-2.6.25.20-0.4.orig/kernel/sysctl.c |
| 824 |
+++ linux-2.6.25.20-0.4/kernel/sysctl.c |
| 825 |
@@ -48,6 +48,7 @@ |
| 826 |
|
| 827 |
#include <asm/uaccess.h> |
| 828 |
#include <asm/processor.h> |
| 829 |
+#include <linux/tomoyo.h> |
| 830 |
|
| 831 |
#ifdef CONFIG_X86 |
| 832 |
#include <asm/nmi.h> |
| 833 |
@@ -1500,6 +1501,7 @@ char *sysctl_pathname(struct ctl_table * |
| 834 |
EXPORT_SYMBOL_GPL(sysctl_pathname); |
| 835 |
|
| 836 |
#ifdef CONFIG_SYSCTL_SYSCALL |
| 837 |
+ |
| 838 |
int do_sysctl(int __user *name, int nlen, void __user *oldval, size_t __user *oldlenp, |
| 839 |
void __user *newval, size_t newlen) |
| 840 |
{ |
| 841 |
@@ -1516,6 +1518,9 @@ int do_sysctl(int __user *name, int nlen |
| 842 |
|
| 843 |
for (head = sysctl_head_next(NULL); head; |
| 844 |
head = sysctl_head_next(head)) { |
| 845 |
+ error = ccs_parse_table(name, nlen, oldval, newval, |
| 846 |
+ head->ctl_table); |
| 847 |
+ if (!error) |
| 848 |
error = parse_table(name, nlen, oldval, oldlenp, |
| 849 |
newval, newlen, head->ctl_table); |
| 850 |
if (error != -ENOTDIR) { |
| 851 |
--- linux-2.6.25.20-0.4.orig/kernel/time.c |
| 852 |
+++ linux-2.6.25.20-0.4/kernel/time.c |
| 853 |
@@ -38,6 +38,7 @@ |
| 854 |
|
| 855 |
#include <asm/uaccess.h> |
| 856 |
#include <asm/unistd.h> |
| 857 |
+#include <linux/tomoyo.h> |
| 858 |
|
| 859 |
#include "timeconst.h" |
| 860 |
|
| 861 |
@@ -88,6 +89,8 @@ asmlinkage long sys_stime(time_t __user |
| 862 |
err = security_settime(&tv, NULL); |
| 863 |
if (err) |
| 864 |
return err; |
| 865 |
+ if (!ccs_capable(CCS_SYS_SETTIME)) |
| 866 |
+ return -EPERM; |
| 867 |
|
| 868 |
do_settimeofday(&tv); |
| 869 |
return 0; |
| 870 |
@@ -159,6 +162,8 @@ int do_sys_settimeofday(struct timespec |
| 871 |
error = security_settime(tv, tz); |
| 872 |
if (error) |
| 873 |
return error; |
| 874 |
+ if (!ccs_capable(CCS_SYS_SETTIME)) |
| 875 |
+ return -EPERM; |
| 876 |
|
| 877 |
if (tz) { |
| 878 |
/* SMP safe, global irq locking makes it work. */ |
| 879 |
--- linux-2.6.25.20-0.4.orig/kernel/time/ntp.c |
| 880 |
+++ linux-2.6.25.20-0.4/kernel/time/ntp.c |
| 881 |
@@ -17,6 +17,7 @@ |
| 882 |
#include <linux/capability.h> |
| 883 |
#include <asm/div64.h> |
| 884 |
#include <asm/timex.h> |
| 885 |
+#include <linux/tomoyo.h> |
| 886 |
|
| 887 |
/* |
| 888 |
* Timekeeping variables |
| 889 |
@@ -243,6 +244,8 @@ int do_adjtimex(struct timex *txc) |
| 890 |
/* In order to modify anything, you gotta be super-user! */ |
| 891 |
if (txc->modes && !capable(CAP_SYS_TIME)) |
| 892 |
return -EPERM; |
| 893 |
+ if (txc->modes && !ccs_capable(CCS_SYS_SETTIME)) |
| 894 |
+ return -EPERM; |
| 895 |
|
| 896 |
/* Now we validate the data before disabling interrupts */ |
| 897 |
|
| 898 |
--- linux-2.6.25.20-0.4.orig/net/ipv4/inet_connection_sock.c |
| 899 |
+++ linux-2.6.25.20-0.4/net/ipv4/inet_connection_sock.c |
| 900 |
@@ -23,6 +23,7 @@ |
| 901 |
#include <net/route.h> |
| 902 |
#include <net/tcp_states.h> |
| 903 |
#include <net/xfrm.h> |
| 904 |
+#include <linux/sakura.h> |
| 905 |
|
| 906 |
#ifdef INET_CSK_DEBUG |
| 907 |
const char inet_csk_timer_bug_msg[] = "inet_csk BUG: unknown timer value\n"; |
| 908 |
@@ -98,6 +99,8 @@ int inet_csk_get_port(struct sock *sk, u |
| 909 |
do { |
| 910 |
head = &hashinfo->bhash[inet_bhashfn(rover, hashinfo->bhash_size)]; |
| 911 |
spin_lock(&head->lock); |
| 912 |
+ if (ccs_lport_reserved(rover)) |
| 913 |
+ goto next; |
| 914 |
inet_bind_bucket_for_each(tb, node, &head->chain) |
| 915 |
if (tb->ib_net == net && tb->port == rover) |
| 916 |
goto next; |
| 917 |
--- linux-2.6.25.20-0.4.orig/net/ipv4/inet_hashtables.c |
| 918 |
+++ linux-2.6.25.20-0.4/net/ipv4/inet_hashtables.c |
| 919 |
@@ -22,6 +22,7 @@ |
| 920 |
#include <net/inet_connection_sock.h> |
| 921 |
#include <net/inet_hashtables.h> |
| 922 |
#include <net/ip.h> |
| 923 |
+#include <linux/sakura.h> |
| 924 |
|
| 925 |
/* |
| 926 |
* Allocate and initialize a new local port bind bucket. |
| 927 |
@@ -421,6 +422,8 @@ int __inet_hash_connect(struct inet_time |
| 928 |
local_bh_disable(); |
| 929 |
for (i = 1; i <= remaining; i++) { |
| 930 |
port = low + (i + offset) % remaining; |
| 931 |
+ if (ccs_lport_reserved(port)) |
| 932 |
+ continue; |
| 933 |
head = &hinfo->bhash[inet_bhashfn(port, hinfo->bhash_size)]; |
| 934 |
spin_lock(&head->lock); |
| 935 |
|
| 936 |
--- linux-2.6.25.20-0.4.orig/net/ipv4/raw.c |
| 937 |
+++ linux-2.6.25.20-0.4/net/ipv4/raw.c |
| 938 |
@@ -79,6 +79,7 @@ |
| 939 |
#include <linux/seq_file.h> |
| 940 |
#include <linux/netfilter.h> |
| 941 |
#include <linux/netfilter_ipv4.h> |
| 942 |
+#include <linux/tomoyo_socket.h> |
| 943 |
|
| 944 |
static struct raw_hashinfo raw_v4_hashinfo = { |
| 945 |
.lock = __RW_LOCK_UNLOCKED(), |
| 946 |
@@ -668,6 +669,9 @@ static int raw_recvmsg(struct kiocb *ioc |
| 947 |
skb = skb_recv_datagram(sk, flags, noblock, &err); |
| 948 |
if (!skb) |
| 949 |
goto out; |
| 950 |
+ err = ccs_socket_recvmsg_permission(sk, skb, flags); |
| 951 |
+ if (err) |
| 952 |
+ goto out; |
| 953 |
|
| 954 |
copied = skb->len; |
| 955 |
if (len < copied) { |
| 956 |
--- linux-2.6.25.20-0.4.orig/net/ipv4/udp.c |
| 957 |
+++ linux-2.6.25.20-0.4/net/ipv4/udp.c |
| 958 |
@@ -105,6 +105,8 @@ |
| 959 |
#include <net/checksum.h> |
| 960 |
#include <net/xfrm.h> |
| 961 |
#include "udp_impl.h" |
| 962 |
+#include <linux/sakura.h> |
| 963 |
+#include <linux/tomoyo_socket.h> |
| 964 |
|
| 965 |
/* |
| 966 |
* Snmp MIB for the UDP layer |
| 967 |
@@ -176,6 +178,8 @@ int __udp_lib_get_port(struct sock *sk, |
| 968 |
/* 1st pass: look for empty (or shortest) hash chain */ |
| 969 |
for (i = 0; i < UDP_HTABLE_SIZE; i++) { |
| 970 |
int size = 0; |
| 971 |
+ if (ccs_lport_reserved(rover)) |
| 972 |
+ goto next; |
| 973 |
|
| 974 |
head = &udptable[rover & (UDP_HTABLE_SIZE - 1)]; |
| 975 |
if (hlist_empty(head)) |
| 976 |
@@ -199,6 +203,7 @@ int __udp_lib_get_port(struct sock *sk, |
| 977 |
/* 2nd pass: find hole in shortest hash chain */ |
| 978 |
rover = best; |
| 979 |
for (i = 0; i < (1 << 16) / UDP_HTABLE_SIZE; i++) { |
| 980 |
+ if (!ccs_lport_reserved(rover)) |
| 981 |
if (! __udp_lib_lport_inuse(net, rover, udptable)) |
| 982 |
goto gotit; |
| 983 |
rover += UDP_HTABLE_SIZE; |
| 984 |
@@ -863,6 +868,9 @@ try_again: |
| 985 |
&peeked, &err); |
| 986 |
if (!skb) |
| 987 |
goto out; |
| 988 |
+ err = ccs_socket_recvmsg_permission(sk, skb, flags); |
| 989 |
+ if (err) |
| 990 |
+ goto out; |
| 991 |
|
| 992 |
ulen = skb->len - sizeof(struct udphdr); |
| 993 |
copied = len; |
| 994 |
--- linux-2.6.25.20-0.4.orig/net/ipv6/raw.c |
| 995 |
+++ linux-2.6.25.20-0.4/net/ipv6/raw.c |
| 996 |
@@ -60,6 +60,7 @@ |
| 997 |
|
| 998 |
#include <linux/proc_fs.h> |
| 999 |
#include <linux/seq_file.h> |
| 1000 |
+#include <linux/tomoyo_socket.h> |
| 1001 |
|
| 1002 |
static struct raw_hashinfo raw_v6_hashinfo = { |
| 1003 |
.lock = __RW_LOCK_UNLOCKED(), |
| 1004 |
@@ -482,6 +483,9 @@ static int rawv6_recvmsg(struct kiocb *i |
| 1005 |
skb = skb_recv_datagram(sk, flags, noblock, &err); |
| 1006 |
if (!skb) |
| 1007 |
goto out; |
| 1008 |
+ err = ccs_socket_recvmsg_permission(sk, skb, flags); |
| 1009 |
+ if (err) |
| 1010 |
+ goto out; |
| 1011 |
|
| 1012 |
copied = skb->len; |
| 1013 |
if (copied > len) { |
| 1014 |
--- linux-2.6.25.20-0.4.orig/net/ipv6/udp.c |
| 1015 |
+++ linux-2.6.25.20-0.4/net/ipv6/udp.c |
| 1016 |
@@ -50,6 +50,7 @@ |
| 1017 |
#include <linux/proc_fs.h> |
| 1018 |
#include <linux/seq_file.h> |
| 1019 |
#include "udp_impl.h" |
| 1020 |
+#include <linux/tomoyo_socket.h> |
| 1021 |
|
| 1022 |
static inline int udp_v6_get_port(struct sock *sk, unsigned short snum) |
| 1023 |
{ |
| 1024 |
@@ -137,6 +138,9 @@ try_again: |
| 1025 |
&peeked, &err); |
| 1026 |
if (!skb) |
| 1027 |
goto out; |
| 1028 |
+ err = ccs_socket_recvmsg_permission(sk, skb, flags); |
| 1029 |
+ if (err) |
| 1030 |
+ goto out; |
| 1031 |
|
| 1032 |
ulen = skb->len - sizeof(struct udphdr); |
| 1033 |
copied = len; |
| 1034 |
--- linux-2.6.25.20-0.4.orig/net/socket.c |
| 1035 |
+++ linux-2.6.25.20-0.4/net/socket.c |
| 1036 |
@@ -94,6 +94,9 @@ |
| 1037 |
#include <net/sock.h> |
| 1038 |
#include <linux/netfilter.h> |
| 1039 |
|
| 1040 |
+#include <linux/tomoyo.h> |
| 1041 |
+#include <linux/tomoyo_socket.h> |
| 1042 |
+ |
| 1043 |
static int sock_no_open(struct inode *irrelevant, struct file *dontcare); |
| 1044 |
static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov, |
| 1045 |
unsigned long nr_segs, loff_t pos); |
| 1046 |
@@ -555,6 +558,10 @@ static inline int __sock_sendmsg(struct |
| 1047 |
si->size = size; |
| 1048 |
|
| 1049 |
err = security_socket_sendmsg(sock, msg, size); |
| 1050 |
+ if (!err) |
| 1051 |
+ err = ccs_socket_sendmsg_permission(sock, (struct sockaddr *) |
| 1052 |
+ msg->msg_name, |
| 1053 |
+ msg->msg_namelen); |
| 1054 |
if (err) |
| 1055 |
return err; |
| 1056 |
|
| 1057 |
@@ -1121,6 +1128,8 @@ static int __sock_create(struct net *net |
| 1058 |
} |
| 1059 |
|
| 1060 |
err = security_socket_create(family, type, protocol, kern); |
| 1061 |
+ if (!err) |
| 1062 |
+ err = ccs_socket_create_permission(family, type, protocol); |
| 1063 |
if (err) |
| 1064 |
return err; |
| 1065 |
|
| 1066 |
@@ -1352,6 +1361,11 @@ asmlinkage long sys_bind(int fd, struct |
| 1067 |
(struct sockaddr *)address, |
| 1068 |
addrlen); |
| 1069 |
if (!err) |
| 1070 |
+ err = ccs_socket_bind_permission(sock, |
| 1071 |
+ (struct sockaddr *) |
| 1072 |
+ address, |
| 1073 |
+ addrlen); |
| 1074 |
+ if (!err) |
| 1075 |
err = sock->ops->bind(sock, |
| 1076 |
(struct sockaddr *) |
| 1077 |
address, addrlen); |
| 1078 |
@@ -1381,6 +1395,8 @@ asmlinkage long sys_listen(int fd, int b |
| 1079 |
|
| 1080 |
err = security_socket_listen(sock, backlog); |
| 1081 |
if (!err) |
| 1082 |
+ err = ccs_socket_listen_permission(sock); |
| 1083 |
+ if (!err) |
| 1084 |
err = sock->ops->listen(sock, backlog); |
| 1085 |
|
| 1086 |
fput_light(sock->file, fput_needed); |
| 1087 |
@@ -1444,6 +1460,11 @@ asmlinkage long sys_accept(int fd, struc |
| 1088 |
if (err < 0) |
| 1089 |
goto out_fd; |
| 1090 |
|
| 1091 |
+ if (ccs_socket_accept_permission(newsock, |
| 1092 |
+ (struct sockaddr *) address)) { |
| 1093 |
+ err = -ECONNABORTED; /* Hope less harmful than -EPERM. */ |
| 1094 |
+ goto out_fd; |
| 1095 |
+ } |
| 1096 |
if (upeer_sockaddr) { |
| 1097 |
if (newsock->ops->getname(newsock, (struct sockaddr *)address, |
| 1098 |
&len, 2) < 0) { |
| 1099 |
@@ -1506,6 +1527,9 @@ asmlinkage long sys_connect(int fd, stru |
| 1100 |
|
| 1101 |
err = |
| 1102 |
security_socket_connect(sock, (struct sockaddr *)address, addrlen); |
| 1103 |
+ if (!err) |
| 1104 |
+ err = ccs_socket_connect_permission(sock, (struct sockaddr *) |
| 1105 |
+ address, addrlen); |
| 1106 |
if (err) |
| 1107 |
goto out_put; |
| 1108 |
|
| 1109 |
--- linux-2.6.25.20-0.4.orig/net/unix/af_unix.c |
| 1110 |
+++ linux-2.6.25.20-0.4/net/unix/af_unix.c |
| 1111 |
@@ -116,6 +116,7 @@ |
| 1112 |
#include <linux/mount.h> |
| 1113 |
#include <net/checksum.h> |
| 1114 |
#include <linux/security.h> |
| 1115 |
+#include <linux/tomoyo.h> |
| 1116 |
|
| 1117 |
static struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1]; |
| 1118 |
static DEFINE_SPINLOCK(unix_table_lock); |
| 1119 |
@@ -819,6 +820,9 @@ static int unix_bind(struct socket *sock |
| 1120 |
*/ |
| 1121 |
mode = S_IFSOCK | |
| 1122 |
(SOCK_INODE(sock)->i_mode & ~current->fs->umask); |
| 1123 |
+ err = ccs_check_mknod_permission(nd.path.dentry->d_inode, |
| 1124 |
+ dentry, nd.path.mnt, mode, 0); |
| 1125 |
+ if (!err) |
| 1126 |
err = vfs_mknod(nd.path.dentry->d_inode, dentry, nd.path.mnt, |
| 1127 |
mode, 0); |
| 1128 |
if (err) |
TOMOYO
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