Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Stub functions for the default security function pointers in case no |
| 3 | * security model is loaded. |
| 4 | * |
| 5 | * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> |
| 6 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> |
| 7 | * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | */ |
| 14 | |
| 15 | #undef DEBUG |
| 16 | |
Randy.Dunlap | c59ede7 | 2006-01-11 12:17:46 -0800 | [diff] [blame] | 17 | #include <linux/capability.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/kernel.h> |
| 19 | #include <linux/mman.h> |
| 20 | #include <linux/pagemap.h> |
| 21 | #include <linux/swap.h> |
| 22 | #include <linux/security.h> |
| 23 | #include <linux/skbuff.h> |
| 24 | #include <linux/netlink.h> |
| 25 | #include <net/sock.h> |
| 26 | #include <linux/xattr.h> |
| 27 | #include <linux/hugetlb.h> |
| 28 | #include <linux/ptrace.h> |
| 29 | #include <linux/file.h> |
Andrew G. Morgan | 8cdbc2b | 2008-06-12 15:21:33 -0700 | [diff] [blame^] | 30 | #include <linux/prctl.h> |
| 31 | #include <linux/securebits.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
| 33 | static int dummy_ptrace (struct task_struct *parent, struct task_struct *child) |
| 34 | { |
| 35 | return 0; |
| 36 | } |
| 37 | |
| 38 | static int dummy_capget (struct task_struct *target, kernel_cap_t * effective, |
| 39 | kernel_cap_t * inheritable, kernel_cap_t * permitted) |
| 40 | { |
Andrew Morgan | 72c2d58 | 2007-10-18 03:05:59 -0700 | [diff] [blame] | 41 | if (target->euid == 0) { |
Andrew Morgan | e338d26 | 2008-02-04 22:29:42 -0800 | [diff] [blame] | 42 | cap_set_full(*permitted); |
| 43 | cap_set_init_eff(*effective); |
| 44 | } else { |
| 45 | cap_clear(*permitted); |
| 46 | cap_clear(*effective); |
Andrew Morgan | 72c2d58 | 2007-10-18 03:05:59 -0700 | [diff] [blame] | 47 | } |
Andrew Morgan | e338d26 | 2008-02-04 22:29:42 -0800 | [diff] [blame] | 48 | |
| 49 | cap_clear(*inheritable); |
| 50 | |
| 51 | if (target->fsuid != 0) { |
| 52 | *permitted = cap_drop_fs_set(*permitted); |
| 53 | *effective = cap_drop_fs_set(*effective); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | } |
| 55 | return 0; |
| 56 | } |
| 57 | |
| 58 | static int dummy_capset_check (struct task_struct *target, |
| 59 | kernel_cap_t * effective, |
| 60 | kernel_cap_t * inheritable, |
| 61 | kernel_cap_t * permitted) |
| 62 | { |
| 63 | return -EPERM; |
| 64 | } |
| 65 | |
| 66 | static void dummy_capset_set (struct task_struct *target, |
| 67 | kernel_cap_t * effective, |
| 68 | kernel_cap_t * inheritable, |
| 69 | kernel_cap_t * permitted) |
| 70 | { |
| 71 | return; |
| 72 | } |
| 73 | |
| 74 | static int dummy_acct (struct file *file) |
| 75 | { |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | static int dummy_capable (struct task_struct *tsk, int cap) |
| 80 | { |
| 81 | if (cap_raised (tsk->cap_effective, cap)) |
| 82 | return 0; |
| 83 | return -EPERM; |
| 84 | } |
| 85 | |
| 86 | static int dummy_sysctl (ctl_table * table, int op) |
| 87 | { |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | static int dummy_quotactl (int cmds, int type, int id, struct super_block *sb) |
| 92 | { |
| 93 | return 0; |
| 94 | } |
| 95 | |
| 96 | static int dummy_quota_on (struct dentry *dentry) |
| 97 | { |
| 98 | return 0; |
| 99 | } |
| 100 | |
| 101 | static int dummy_syslog (int type) |
| 102 | { |
| 103 | if ((type != 3 && type != 10) && current->euid) |
| 104 | return -EPERM; |
| 105 | return 0; |
| 106 | } |
| 107 | |
| 108 | static int dummy_settime(struct timespec *ts, struct timezone *tz) |
| 109 | { |
| 110 | if (!capable(CAP_SYS_TIME)) |
| 111 | return -EPERM; |
| 112 | return 0; |
| 113 | } |
| 114 | |
Alan Cox | 34b4e4a | 2007-08-22 14:01:28 -0700 | [diff] [blame] | 115 | static int dummy_vm_enough_memory(struct mm_struct *mm, long pages) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | { |
| 117 | int cap_sys_admin = 0; |
| 118 | |
| 119 | if (dummy_capable(current, CAP_SYS_ADMIN) == 0) |
| 120 | cap_sys_admin = 1; |
Alan Cox | 34b4e4a | 2007-08-22 14:01:28 -0700 | [diff] [blame] | 121 | return __vm_enough_memory(mm, pages, cap_sys_admin); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | static int dummy_bprm_alloc_security (struct linux_binprm *bprm) |
| 125 | { |
| 126 | return 0; |
| 127 | } |
| 128 | |
| 129 | static void dummy_bprm_free_security (struct linux_binprm *bprm) |
| 130 | { |
| 131 | return; |
| 132 | } |
| 133 | |
| 134 | static void dummy_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) |
| 135 | { |
| 136 | if (bprm->e_uid != current->uid || bprm->e_gid != current->gid) { |
Kawai, Hidehiro | 6c5d523 | 2007-07-19 01:48:27 -0700 | [diff] [blame] | 137 | set_dumpable(current->mm, suid_dumpable); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
| 139 | if ((unsafe & ~LSM_UNSAFE_PTRACE_CAP) && !capable(CAP_SETUID)) { |
| 140 | bprm->e_uid = current->uid; |
| 141 | bprm->e_gid = current->gid; |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | current->suid = current->euid = current->fsuid = bprm->e_uid; |
| 146 | current->sgid = current->egid = current->fsgid = bprm->e_gid; |
| 147 | |
| 148 | dummy_capget(current, ¤t->cap_effective, ¤t->cap_inheritable, ¤t->cap_permitted); |
| 149 | } |
| 150 | |
| 151 | static void dummy_bprm_post_apply_creds (struct linux_binprm *bprm) |
| 152 | { |
| 153 | return; |
| 154 | } |
| 155 | |
| 156 | static int dummy_bprm_set_security (struct linux_binprm *bprm) |
| 157 | { |
| 158 | return 0; |
| 159 | } |
| 160 | |
| 161 | static int dummy_bprm_check_security (struct linux_binprm *bprm) |
| 162 | { |
| 163 | return 0; |
| 164 | } |
| 165 | |
| 166 | static int dummy_bprm_secureexec (struct linux_binprm *bprm) |
| 167 | { |
| 168 | /* The new userland will simply use the value provided |
| 169 | in the AT_SECURE field to decide whether secure mode |
| 170 | is required. Hence, this logic is required to preserve |
| 171 | the legacy decision algorithm used by the old userland. */ |
| 172 | return (current->euid != current->uid || |
| 173 | current->egid != current->gid); |
| 174 | } |
| 175 | |
| 176 | static int dummy_sb_alloc_security (struct super_block *sb) |
| 177 | { |
| 178 | return 0; |
| 179 | } |
| 180 | |
| 181 | static void dummy_sb_free_security (struct super_block *sb) |
| 182 | { |
| 183 | return; |
| 184 | } |
| 185 | |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 186 | static int dummy_sb_copy_data (char *orig, char *copy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | { |
| 188 | return 0; |
| 189 | } |
| 190 | |
| 191 | static int dummy_sb_kern_mount (struct super_block *sb, void *data) |
| 192 | { |
| 193 | return 0; |
| 194 | } |
| 195 | |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 196 | static int dummy_sb_statfs (struct dentry *dentry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | { |
| 198 | return 0; |
| 199 | } |
| 200 | |
Al Viro | b5266eb | 2008-03-22 17:48:24 -0400 | [diff] [blame] | 201 | static int dummy_sb_mount (char *dev_name, struct path *path, char *type, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | unsigned long flags, void *data) |
| 203 | { |
| 204 | return 0; |
| 205 | } |
| 206 | |
Al Viro | b5266eb | 2008-03-22 17:48:24 -0400 | [diff] [blame] | 207 | static int dummy_sb_check_sb (struct vfsmount *mnt, struct path *path) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | { |
| 209 | return 0; |
| 210 | } |
| 211 | |
| 212 | static int dummy_sb_umount (struct vfsmount *mnt, int flags) |
| 213 | { |
| 214 | return 0; |
| 215 | } |
| 216 | |
| 217 | static void dummy_sb_umount_close (struct vfsmount *mnt) |
| 218 | { |
| 219 | return; |
| 220 | } |
| 221 | |
| 222 | static void dummy_sb_umount_busy (struct vfsmount *mnt) |
| 223 | { |
| 224 | return; |
| 225 | } |
| 226 | |
| 227 | static void dummy_sb_post_remount (struct vfsmount *mnt, unsigned long flags, |
| 228 | void *data) |
| 229 | { |
| 230 | return; |
| 231 | } |
| 232 | |
| 233 | |
Al Viro | b5266eb | 2008-03-22 17:48:24 -0400 | [diff] [blame] | 234 | static void dummy_sb_post_addmount (struct vfsmount *mnt, struct path *path) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | { |
| 236 | return; |
| 237 | } |
| 238 | |
Al Viro | b5266eb | 2008-03-22 17:48:24 -0400 | [diff] [blame] | 239 | static int dummy_sb_pivotroot (struct path *old_path, struct path *new_path) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | { |
| 241 | return 0; |
| 242 | } |
| 243 | |
Al Viro | b5266eb | 2008-03-22 17:48:24 -0400 | [diff] [blame] | 244 | static void dummy_sb_post_pivotroot (struct path *old_path, struct path *new_path) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | { |
| 246 | return; |
| 247 | } |
| 248 | |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 249 | static int dummy_sb_get_mnt_opts(const struct super_block *sb, |
| 250 | struct security_mnt_opts *opts) |
Eric Paris | c9180a5 | 2007-11-30 13:00:35 -0500 | [diff] [blame] | 251 | { |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 252 | security_init_mnt_opts(opts); |
Eric Paris | c9180a5 | 2007-11-30 13:00:35 -0500 | [diff] [blame] | 253 | return 0; |
| 254 | } |
| 255 | |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 256 | static int dummy_sb_set_mnt_opts(struct super_block *sb, |
| 257 | struct security_mnt_opts *opts) |
Eric Paris | c9180a5 | 2007-11-30 13:00:35 -0500 | [diff] [blame] | 258 | { |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 259 | if (unlikely(opts->num_mnt_opts)) |
Eric Paris | c9180a5 | 2007-11-30 13:00:35 -0500 | [diff] [blame] | 260 | return -EOPNOTSUPP; |
| 261 | return 0; |
| 262 | } |
| 263 | |
| 264 | static void dummy_sb_clone_mnt_opts(const struct super_block *oldsb, |
| 265 | struct super_block *newsb) |
| 266 | { |
| 267 | return; |
| 268 | } |
| 269 | |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 270 | static int dummy_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) |
| 271 | { |
| 272 | return 0; |
| 273 | } |
| 274 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | static int dummy_inode_alloc_security (struct inode *inode) |
| 276 | { |
| 277 | return 0; |
| 278 | } |
| 279 | |
| 280 | static void dummy_inode_free_security (struct inode *inode) |
| 281 | { |
| 282 | return; |
| 283 | } |
| 284 | |
Stephen Smalley | 5e41ff9 | 2005-09-09 13:01:35 -0700 | [diff] [blame] | 285 | static int dummy_inode_init_security (struct inode *inode, struct inode *dir, |
| 286 | char **name, void **value, size_t *len) |
| 287 | { |
| 288 | return -EOPNOTSUPP; |
| 289 | } |
| 290 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | static int dummy_inode_create (struct inode *inode, struct dentry *dentry, |
| 292 | int mask) |
| 293 | { |
| 294 | return 0; |
| 295 | } |
| 296 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | static int dummy_inode_link (struct dentry *old_dentry, struct inode *inode, |
| 298 | struct dentry *new_dentry) |
| 299 | { |
| 300 | return 0; |
| 301 | } |
| 302 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry) |
| 304 | { |
| 305 | return 0; |
| 306 | } |
| 307 | |
| 308 | static int dummy_inode_symlink (struct inode *inode, struct dentry *dentry, |
| 309 | const char *name) |
| 310 | { |
| 311 | return 0; |
| 312 | } |
| 313 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry, |
| 315 | int mask) |
| 316 | { |
| 317 | return 0; |
| 318 | } |
| 319 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | static int dummy_inode_rmdir (struct inode *inode, struct dentry *dentry) |
| 321 | { |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | static int dummy_inode_mknod (struct inode *inode, struct dentry *dentry, |
| 326 | int mode, dev_t dev) |
| 327 | { |
| 328 | return 0; |
| 329 | } |
| 330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | static int dummy_inode_rename (struct inode *old_inode, |
| 332 | struct dentry *old_dentry, |
| 333 | struct inode *new_inode, |
| 334 | struct dentry *new_dentry) |
| 335 | { |
| 336 | return 0; |
| 337 | } |
| 338 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | static int dummy_inode_readlink (struct dentry *dentry) |
| 340 | { |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | static int dummy_inode_follow_link (struct dentry *dentry, |
| 345 | struct nameidata *nameidata) |
| 346 | { |
| 347 | return 0; |
| 348 | } |
| 349 | |
| 350 | static int dummy_inode_permission (struct inode *inode, int mask, struct nameidata *nd) |
| 351 | { |
| 352 | return 0; |
| 353 | } |
| 354 | |
| 355 | static int dummy_inode_setattr (struct dentry *dentry, struct iattr *iattr) |
| 356 | { |
| 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | static int dummy_inode_getattr (struct vfsmount *mnt, struct dentry *dentry) |
| 361 | { |
| 362 | return 0; |
| 363 | } |
| 364 | |
| 365 | static void dummy_inode_delete (struct inode *ino) |
| 366 | { |
| 367 | return; |
| 368 | } |
| 369 | |
David Howells | 8f0cfa5 | 2008-04-29 00:59:41 -0700 | [diff] [blame] | 370 | static int dummy_inode_setxattr (struct dentry *dentry, const char *name, |
| 371 | const void *value, size_t size, int flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | { |
| 373 | if (!strncmp(name, XATTR_SECURITY_PREFIX, |
| 374 | sizeof(XATTR_SECURITY_PREFIX) - 1) && |
| 375 | !capable(CAP_SYS_ADMIN)) |
| 376 | return -EPERM; |
| 377 | return 0; |
| 378 | } |
| 379 | |
David Howells | 8f0cfa5 | 2008-04-29 00:59:41 -0700 | [diff] [blame] | 380 | static void dummy_inode_post_setxattr (struct dentry *dentry, const char *name, |
| 381 | const void *value, size_t size, |
| 382 | int flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | { |
| 384 | } |
| 385 | |
David Howells | 8f0cfa5 | 2008-04-29 00:59:41 -0700 | [diff] [blame] | 386 | static int dummy_inode_getxattr (struct dentry *dentry, const char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | { |
| 388 | return 0; |
| 389 | } |
| 390 | |
| 391 | static int dummy_inode_listxattr (struct dentry *dentry) |
| 392 | { |
| 393 | return 0; |
| 394 | } |
| 395 | |
David Howells | 8f0cfa5 | 2008-04-29 00:59:41 -0700 | [diff] [blame] | 396 | static int dummy_inode_removexattr (struct dentry *dentry, const char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | { |
| 398 | if (!strncmp(name, XATTR_SECURITY_PREFIX, |
| 399 | sizeof(XATTR_SECURITY_PREFIX) - 1) && |
| 400 | !capable(CAP_SYS_ADMIN)) |
| 401 | return -EPERM; |
| 402 | return 0; |
| 403 | } |
| 404 | |
Serge E. Hallyn | b537677 | 2007-10-16 23:31:36 -0700 | [diff] [blame] | 405 | static int dummy_inode_need_killpriv(struct dentry *dentry) |
| 406 | { |
| 407 | return 0; |
| 408 | } |
| 409 | |
| 410 | static int dummy_inode_killpriv(struct dentry *dentry) |
| 411 | { |
| 412 | return 0; |
| 413 | } |
| 414 | |
David P. Quigley | 4249259 | 2008-02-04 22:29:39 -0800 | [diff] [blame] | 415 | static int dummy_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | { |
| 417 | return -EOPNOTSUPP; |
| 418 | } |
| 419 | |
| 420 | static int dummy_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) |
| 421 | { |
| 422 | return -EOPNOTSUPP; |
| 423 | } |
| 424 | |
| 425 | static int dummy_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) |
| 426 | { |
| 427 | return 0; |
| 428 | } |
| 429 | |
Ahmed S. Darwish | 8a07619 | 2008-03-01 21:51:09 +0200 | [diff] [blame] | 430 | static void dummy_inode_getsecid(const struct inode *inode, u32 *secid) |
| 431 | { |
| 432 | *secid = 0; |
| 433 | } |
| 434 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | static int dummy_file_permission (struct file *file, int mask) |
| 436 | { |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | static int dummy_file_alloc_security (struct file *file) |
| 441 | { |
| 442 | return 0; |
| 443 | } |
| 444 | |
| 445 | static void dummy_file_free_security (struct file *file) |
| 446 | { |
| 447 | return; |
| 448 | } |
| 449 | |
| 450 | static int dummy_file_ioctl (struct file *file, unsigned int command, |
| 451 | unsigned long arg) |
| 452 | { |
| 453 | return 0; |
| 454 | } |
| 455 | |
| 456 | static int dummy_file_mmap (struct file *file, unsigned long reqprot, |
| 457 | unsigned long prot, |
Eric Paris | ed03218 | 2007-06-28 15:55:21 -0400 | [diff] [blame] | 458 | unsigned long flags, |
| 459 | unsigned long addr, |
| 460 | unsigned long addr_only) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | { |
Eric Paris | ab5a91a | 2007-11-26 18:47:46 -0500 | [diff] [blame] | 462 | if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO)) |
Eric Paris | ed03218 | 2007-06-28 15:55:21 -0400 | [diff] [blame] | 463 | return -EACCES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | return 0; |
| 465 | } |
| 466 | |
| 467 | static int dummy_file_mprotect (struct vm_area_struct *vma, |
| 468 | unsigned long reqprot, |
| 469 | unsigned long prot) |
| 470 | { |
| 471 | return 0; |
| 472 | } |
| 473 | |
| 474 | static int dummy_file_lock (struct file *file, unsigned int cmd) |
| 475 | { |
| 476 | return 0; |
| 477 | } |
| 478 | |
| 479 | static int dummy_file_fcntl (struct file *file, unsigned int cmd, |
| 480 | unsigned long arg) |
| 481 | { |
| 482 | return 0; |
| 483 | } |
| 484 | |
| 485 | static int dummy_file_set_fowner (struct file *file) |
| 486 | { |
| 487 | return 0; |
| 488 | } |
| 489 | |
| 490 | static int dummy_file_send_sigiotask (struct task_struct *tsk, |
| 491 | struct fown_struct *fown, int sig) |
| 492 | { |
| 493 | return 0; |
| 494 | } |
| 495 | |
| 496 | static int dummy_file_receive (struct file *file) |
| 497 | { |
| 498 | return 0; |
| 499 | } |
| 500 | |
Yuichi Nakamura | 788e7dd | 2007-09-14 09:27:07 +0900 | [diff] [blame] | 501 | static int dummy_dentry_open (struct file *file) |
| 502 | { |
| 503 | return 0; |
| 504 | } |
| 505 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | static int dummy_task_create (unsigned long clone_flags) |
| 507 | { |
| 508 | return 0; |
| 509 | } |
| 510 | |
| 511 | static int dummy_task_alloc_security (struct task_struct *p) |
| 512 | { |
| 513 | return 0; |
| 514 | } |
| 515 | |
| 516 | static void dummy_task_free_security (struct task_struct *p) |
| 517 | { |
| 518 | return; |
| 519 | } |
| 520 | |
| 521 | static int dummy_task_setuid (uid_t id0, uid_t id1, uid_t id2, int flags) |
| 522 | { |
| 523 | return 0; |
| 524 | } |
| 525 | |
| 526 | static int dummy_task_post_setuid (uid_t id0, uid_t id1, uid_t id2, int flags) |
| 527 | { |
| 528 | dummy_capget(current, ¤t->cap_effective, ¤t->cap_inheritable, ¤t->cap_permitted); |
| 529 | return 0; |
| 530 | } |
| 531 | |
| 532 | static int dummy_task_setgid (gid_t id0, gid_t id1, gid_t id2, int flags) |
| 533 | { |
| 534 | return 0; |
| 535 | } |
| 536 | |
| 537 | static int dummy_task_setpgid (struct task_struct *p, pid_t pgid) |
| 538 | { |
| 539 | return 0; |
| 540 | } |
| 541 | |
| 542 | static int dummy_task_getpgid (struct task_struct *p) |
| 543 | { |
| 544 | return 0; |
| 545 | } |
| 546 | |
| 547 | static int dummy_task_getsid (struct task_struct *p) |
| 548 | { |
| 549 | return 0; |
| 550 | } |
| 551 | |
David Quigley | f9008e4 | 2006-06-30 01:55:46 -0700 | [diff] [blame] | 552 | static void dummy_task_getsecid (struct task_struct *p, u32 *secid) |
Ahmed S. Darwish | 8a07619 | 2008-03-01 21:51:09 +0200 | [diff] [blame] | 553 | { |
| 554 | *secid = 0; |
| 555 | } |
David Quigley | f9008e4 | 2006-06-30 01:55:46 -0700 | [diff] [blame] | 556 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | static int dummy_task_setgroups (struct group_info *group_info) |
| 558 | { |
| 559 | return 0; |
| 560 | } |
| 561 | |
| 562 | static int dummy_task_setnice (struct task_struct *p, int nice) |
| 563 | { |
| 564 | return 0; |
| 565 | } |
| 566 | |
James Morris | 03e6806 | 2006-06-23 02:03:58 -0700 | [diff] [blame] | 567 | static int dummy_task_setioprio (struct task_struct *p, int ioprio) |
| 568 | { |
| 569 | return 0; |
| 570 | } |
| 571 | |
David Quigley | a1836a4 | 2006-06-30 01:55:49 -0700 | [diff] [blame] | 572 | static int dummy_task_getioprio (struct task_struct *p) |
| 573 | { |
| 574 | return 0; |
| 575 | } |
| 576 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | static int dummy_task_setrlimit (unsigned int resource, struct rlimit *new_rlim) |
| 578 | { |
| 579 | return 0; |
| 580 | } |
| 581 | |
| 582 | static int dummy_task_setscheduler (struct task_struct *p, int policy, |
| 583 | struct sched_param *lp) |
| 584 | { |
| 585 | return 0; |
| 586 | } |
| 587 | |
| 588 | static int dummy_task_getscheduler (struct task_struct *p) |
| 589 | { |
| 590 | return 0; |
| 591 | } |
| 592 | |
David Quigley | 3560154 | 2006-06-23 02:04:01 -0700 | [diff] [blame] | 593 | static int dummy_task_movememory (struct task_struct *p) |
| 594 | { |
| 595 | return 0; |
| 596 | } |
| 597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | static int dummy_task_wait (struct task_struct *p) |
| 599 | { |
| 600 | return 0; |
| 601 | } |
| 602 | |
| 603 | static int dummy_task_kill (struct task_struct *p, struct siginfo *info, |
David Quigley | f9008e4 | 2006-06-30 01:55:46 -0700 | [diff] [blame] | 604 | int sig, u32 secid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | { |
| 606 | return 0; |
| 607 | } |
| 608 | |
| 609 | static int dummy_task_prctl (int option, unsigned long arg2, unsigned long arg3, |
Andrew G. Morgan | 3898b1b | 2008-04-28 02:13:40 -0700 | [diff] [blame] | 610 | unsigned long arg4, unsigned long arg5, long *rc_p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | { |
Andrew G. Morgan | 8cdbc2b | 2008-06-12 15:21:33 -0700 | [diff] [blame^] | 612 | switch (option) { |
| 613 | case PR_CAPBSET_READ: |
| 614 | *rc_p = (cap_valid(arg2) ? 1 : -EINVAL); |
| 615 | break; |
| 616 | case PR_GET_KEEPCAPS: |
| 617 | *rc_p = issecure(SECURE_KEEP_CAPS); |
| 618 | break; |
| 619 | case PR_SET_KEEPCAPS: |
| 620 | if (arg2 > 1) |
| 621 | *rc_p = -EINVAL; |
| 622 | else if (arg2) |
| 623 | current->securebits |= issecure_mask(SECURE_KEEP_CAPS); |
| 624 | else |
| 625 | current->securebits &= |
| 626 | ~issecure_mask(SECURE_KEEP_CAPS); |
| 627 | break; |
| 628 | default: |
| 629 | return 0; |
| 630 | } |
| 631 | |
| 632 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | } |
| 634 | |
| 635 | static void dummy_task_reparent_to_init (struct task_struct *p) |
| 636 | { |
| 637 | p->euid = p->fsuid = 0; |
| 638 | return; |
| 639 | } |
| 640 | |
| 641 | static void dummy_task_to_inode(struct task_struct *p, struct inode *inode) |
| 642 | { } |
| 643 | |
| 644 | static int dummy_ipc_permission (struct kern_ipc_perm *ipcp, short flag) |
| 645 | { |
| 646 | return 0; |
| 647 | } |
| 648 | |
Ahmed S. Darwish | 8a07619 | 2008-03-01 21:51:09 +0200 | [diff] [blame] | 649 | static void dummy_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
| 650 | { |
| 651 | *secid = 0; |
| 652 | } |
| 653 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | static int dummy_msg_msg_alloc_security (struct msg_msg *msg) |
| 655 | { |
| 656 | return 0; |
| 657 | } |
| 658 | |
| 659 | static void dummy_msg_msg_free_security (struct msg_msg *msg) |
| 660 | { |
| 661 | return; |
| 662 | } |
| 663 | |
| 664 | static int dummy_msg_queue_alloc_security (struct msg_queue *msq) |
| 665 | { |
| 666 | return 0; |
| 667 | } |
| 668 | |
| 669 | static void dummy_msg_queue_free_security (struct msg_queue *msq) |
| 670 | { |
| 671 | return; |
| 672 | } |
| 673 | |
| 674 | static int dummy_msg_queue_associate (struct msg_queue *msq, |
| 675 | int msqflg) |
| 676 | { |
| 677 | return 0; |
| 678 | } |
| 679 | |
| 680 | static int dummy_msg_queue_msgctl (struct msg_queue *msq, int cmd) |
| 681 | { |
| 682 | return 0; |
| 683 | } |
| 684 | |
| 685 | static int dummy_msg_queue_msgsnd (struct msg_queue *msq, struct msg_msg *msg, |
| 686 | int msgflg) |
| 687 | { |
| 688 | return 0; |
| 689 | } |
| 690 | |
| 691 | static int dummy_msg_queue_msgrcv (struct msg_queue *msq, struct msg_msg *msg, |
| 692 | struct task_struct *target, long type, |
| 693 | int mode) |
| 694 | { |
| 695 | return 0; |
| 696 | } |
| 697 | |
| 698 | static int dummy_shm_alloc_security (struct shmid_kernel *shp) |
| 699 | { |
| 700 | return 0; |
| 701 | } |
| 702 | |
| 703 | static void dummy_shm_free_security (struct shmid_kernel *shp) |
| 704 | { |
| 705 | return; |
| 706 | } |
| 707 | |
| 708 | static int dummy_shm_associate (struct shmid_kernel *shp, int shmflg) |
| 709 | { |
| 710 | return 0; |
| 711 | } |
| 712 | |
| 713 | static int dummy_shm_shmctl (struct shmid_kernel *shp, int cmd) |
| 714 | { |
| 715 | return 0; |
| 716 | } |
| 717 | |
| 718 | static int dummy_shm_shmat (struct shmid_kernel *shp, char __user *shmaddr, |
| 719 | int shmflg) |
| 720 | { |
| 721 | return 0; |
| 722 | } |
| 723 | |
| 724 | static int dummy_sem_alloc_security (struct sem_array *sma) |
| 725 | { |
| 726 | return 0; |
| 727 | } |
| 728 | |
| 729 | static void dummy_sem_free_security (struct sem_array *sma) |
| 730 | { |
| 731 | return; |
| 732 | } |
| 733 | |
| 734 | static int dummy_sem_associate (struct sem_array *sma, int semflg) |
| 735 | { |
| 736 | return 0; |
| 737 | } |
| 738 | |
| 739 | static int dummy_sem_semctl (struct sem_array *sma, int cmd) |
| 740 | { |
| 741 | return 0; |
| 742 | } |
| 743 | |
| 744 | static int dummy_sem_semop (struct sem_array *sma, |
| 745 | struct sembuf *sops, unsigned nsops, int alter) |
| 746 | { |
| 747 | return 0; |
| 748 | } |
| 749 | |
| 750 | static int dummy_netlink_send (struct sock *sk, struct sk_buff *skb) |
| 751 | { |
| 752 | NETLINK_CB(skb).eff_cap = current->cap_effective; |
| 753 | return 0; |
| 754 | } |
| 755 | |
Darrel Goeddel | c7bdb54 | 2006-06-27 13:26:11 -0700 | [diff] [blame] | 756 | static int dummy_netlink_recv (struct sk_buff *skb, int cap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | { |
Darrel Goeddel | c7bdb54 | 2006-06-27 13:26:11 -0700 | [diff] [blame] | 758 | if (!cap_raised (NETLINK_CB (skb).eff_cap, cap)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | return -EPERM; |
| 760 | return 0; |
| 761 | } |
| 762 | |
| 763 | #ifdef CONFIG_SECURITY_NETWORK |
| 764 | static int dummy_unix_stream_connect (struct socket *sock, |
| 765 | struct socket *other, |
| 766 | struct sock *newsk) |
| 767 | { |
| 768 | return 0; |
| 769 | } |
| 770 | |
| 771 | static int dummy_unix_may_send (struct socket *sock, |
| 772 | struct socket *other) |
| 773 | { |
| 774 | return 0; |
| 775 | } |
| 776 | |
| 777 | static int dummy_socket_create (int family, int type, |
| 778 | int protocol, int kern) |
| 779 | { |
| 780 | return 0; |
| 781 | } |
| 782 | |
Venkat Yekkirala | 7420ed2 | 2006-08-04 23:17:57 -0700 | [diff] [blame] | 783 | static int dummy_socket_post_create (struct socket *sock, int family, int type, |
| 784 | int protocol, int kern) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | { |
Venkat Yekkirala | 7420ed2 | 2006-08-04 23:17:57 -0700 | [diff] [blame] | 786 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | } |
| 788 | |
| 789 | static int dummy_socket_bind (struct socket *sock, struct sockaddr *address, |
| 790 | int addrlen) |
| 791 | { |
| 792 | return 0; |
| 793 | } |
| 794 | |
| 795 | static int dummy_socket_connect (struct socket *sock, struct sockaddr *address, |
| 796 | int addrlen) |
| 797 | { |
| 798 | return 0; |
| 799 | } |
| 800 | |
| 801 | static int dummy_socket_listen (struct socket *sock, int backlog) |
| 802 | { |
| 803 | return 0; |
| 804 | } |
| 805 | |
| 806 | static int dummy_socket_accept (struct socket *sock, struct socket *newsock) |
| 807 | { |
| 808 | return 0; |
| 809 | } |
| 810 | |
| 811 | static void dummy_socket_post_accept (struct socket *sock, |
| 812 | struct socket *newsock) |
| 813 | { |
| 814 | return; |
| 815 | } |
| 816 | |
| 817 | static int dummy_socket_sendmsg (struct socket *sock, struct msghdr *msg, |
| 818 | int size) |
| 819 | { |
| 820 | return 0; |
| 821 | } |
| 822 | |
| 823 | static int dummy_socket_recvmsg (struct socket *sock, struct msghdr *msg, |
| 824 | int size, int flags) |
| 825 | { |
| 826 | return 0; |
| 827 | } |
| 828 | |
| 829 | static int dummy_socket_getsockname (struct socket *sock) |
| 830 | { |
| 831 | return 0; |
| 832 | } |
| 833 | |
| 834 | static int dummy_socket_getpeername (struct socket *sock) |
| 835 | { |
| 836 | return 0; |
| 837 | } |
| 838 | |
| 839 | static int dummy_socket_setsockopt (struct socket *sock, int level, int optname) |
| 840 | { |
| 841 | return 0; |
| 842 | } |
| 843 | |
| 844 | static int dummy_socket_getsockopt (struct socket *sock, int level, int optname) |
| 845 | { |
| 846 | return 0; |
| 847 | } |
| 848 | |
| 849 | static int dummy_socket_shutdown (struct socket *sock, int how) |
| 850 | { |
| 851 | return 0; |
| 852 | } |
| 853 | |
| 854 | static int dummy_socket_sock_rcv_skb (struct sock *sk, struct sk_buff *skb) |
| 855 | { |
| 856 | return 0; |
| 857 | } |
| 858 | |
Catherine Zhang | 2c7946a | 2006-03-20 22:41:23 -0800 | [diff] [blame] | 859 | static int dummy_socket_getpeersec_stream(struct socket *sock, char __user *optval, |
| 860 | int __user *optlen, unsigned len) |
| 861 | { |
| 862 | return -ENOPROTOOPT; |
| 863 | } |
| 864 | |
Catherine Zhang | dc49c1f | 2006-08-02 14:12:06 -0700 | [diff] [blame] | 865 | static int dummy_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | { |
| 867 | return -ENOPROTOOPT; |
| 868 | } |
| 869 | |
Al Viro | 7d877f3 | 2005-10-21 03:20:43 -0400 | [diff] [blame] | 870 | static inline int dummy_sk_alloc_security (struct sock *sk, int family, gfp_t priority) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 871 | { |
| 872 | return 0; |
| 873 | } |
| 874 | |
| 875 | static inline void dummy_sk_free_security (struct sock *sk) |
| 876 | { |
| 877 | } |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 878 | |
Venkat Yekkirala | 892c141 | 2006-08-04 23:08:56 -0700 | [diff] [blame] | 879 | static inline void dummy_sk_clone_security (const struct sock *sk, struct sock *newsk) |
| 880 | { |
| 881 | } |
| 882 | |
Venkat Yekkirala | beb8d13 | 2006-08-04 23:12:42 -0700 | [diff] [blame] | 883 | static inline void dummy_sk_getsecid(struct sock *sk, u32 *secid) |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 884 | { |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 885 | } |
Venkat Yekkirala | 4237c75 | 2006-07-24 23:32:50 -0700 | [diff] [blame] | 886 | |
| 887 | static inline void dummy_sock_graft(struct sock* sk, struct socket *parent) |
| 888 | { |
| 889 | } |
| 890 | |
| 891 | static inline int dummy_inet_conn_request(struct sock *sk, |
| 892 | struct sk_buff *skb, struct request_sock *req) |
| 893 | { |
| 894 | return 0; |
| 895 | } |
| 896 | |
| 897 | static inline void dummy_inet_csk_clone(struct sock *newsk, |
| 898 | const struct request_sock *req) |
| 899 | { |
| 900 | } |
| 901 | |
Venkat Yekkirala | 6b87769 | 2006-11-08 17:04:09 -0600 | [diff] [blame] | 902 | static inline void dummy_inet_conn_established(struct sock *sk, |
| 903 | struct sk_buff *skb) |
| 904 | { |
| 905 | } |
| 906 | |
Venkat Yekkirala | 4237c75 | 2006-07-24 23:32:50 -0700 | [diff] [blame] | 907 | static inline void dummy_req_classify_flow(const struct request_sock *req, |
| 908 | struct flowi *fl) |
| 909 | { |
| 910 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | #endif /* CONFIG_SECURITY_NETWORK */ |
| 912 | |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 913 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
Paul Moore | 03e1ad7 | 2008-04-12 19:07:52 -0700 | [diff] [blame] | 914 | static int dummy_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp, |
| 915 | struct xfrm_user_sec_ctx *sec_ctx) |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 916 | { |
| 917 | return 0; |
| 918 | } |
| 919 | |
Paul Moore | 03e1ad7 | 2008-04-12 19:07:52 -0700 | [diff] [blame] | 920 | static inline int dummy_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx, |
| 921 | struct xfrm_sec_ctx **new_ctxp) |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 922 | { |
| 923 | return 0; |
| 924 | } |
| 925 | |
Paul Moore | 03e1ad7 | 2008-04-12 19:07:52 -0700 | [diff] [blame] | 926 | static void dummy_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx) |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 927 | { |
| 928 | } |
| 929 | |
Paul Moore | 03e1ad7 | 2008-04-12 19:07:52 -0700 | [diff] [blame] | 930 | static int dummy_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx) |
Catherine Zhang | c8c05a8 | 2006-06-08 23:39:49 -0700 | [diff] [blame] | 931 | { |
| 932 | return 0; |
| 933 | } |
| 934 | |
Venkat Yekkirala | e0d1caa | 2006-07-24 23:29:07 -0700 | [diff] [blame] | 935 | static int dummy_xfrm_state_alloc_security(struct xfrm_state *x, |
Venkat Yekkirala | c1a856c | 2006-11-08 17:03:44 -0600 | [diff] [blame] | 936 | struct xfrm_user_sec_ctx *sec_ctx, u32 secid) |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 937 | { |
| 938 | return 0; |
| 939 | } |
| 940 | |
| 941 | static void dummy_xfrm_state_free_security(struct xfrm_state *x) |
| 942 | { |
| 943 | } |
| 944 | |
Catherine Zhang | c8c05a8 | 2006-06-08 23:39:49 -0700 | [diff] [blame] | 945 | static int dummy_xfrm_state_delete_security(struct xfrm_state *x) |
| 946 | { |
| 947 | return 0; |
| 948 | } |
| 949 | |
Paul Moore | 03e1ad7 | 2008-04-12 19:07:52 -0700 | [diff] [blame] | 950 | static int dummy_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, |
| 951 | u32 sk_sid, u8 dir) |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 952 | { |
| 953 | return 0; |
| 954 | } |
Venkat Yekkirala | e0d1caa | 2006-07-24 23:29:07 -0700 | [diff] [blame] | 955 | |
| 956 | static int dummy_xfrm_state_pol_flow_match(struct xfrm_state *x, |
| 957 | struct xfrm_policy *xp, struct flowi *fl) |
| 958 | { |
| 959 | return 1; |
| 960 | } |
| 961 | |
Venkat Yekkirala | beb8d13 | 2006-08-04 23:12:42 -0700 | [diff] [blame] | 962 | static int dummy_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall) |
Venkat Yekkirala | e0d1caa | 2006-07-24 23:29:07 -0700 | [diff] [blame] | 963 | { |
| 964 | return 0; |
| 965 | } |
| 966 | |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 967 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | static int dummy_register_security (const char *name, struct security_operations *ops) |
| 969 | { |
| 970 | return -EINVAL; |
| 971 | } |
| 972 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 973 | static void dummy_d_instantiate (struct dentry *dentry, struct inode *inode) |
| 974 | { |
| 975 | return; |
| 976 | } |
| 977 | |
Al Viro | 04ff970 | 2007-03-12 16:17:58 +0000 | [diff] [blame] | 978 | static int dummy_getprocattr(struct task_struct *p, char *name, char **value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 979 | { |
| 980 | return -EINVAL; |
| 981 | } |
| 982 | |
| 983 | static int dummy_setprocattr(struct task_struct *p, char *name, void *value, size_t size) |
| 984 | { |
| 985 | return -EINVAL; |
| 986 | } |
| 987 | |
Catherine Zhang | dc49c1f | 2006-08-02 14:12:06 -0700 | [diff] [blame] | 988 | static int dummy_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
| 989 | { |
| 990 | return -EOPNOTSUPP; |
| 991 | } |
| 992 | |
David Howells | 7bf570d | 2008-04-29 20:52:51 +0100 | [diff] [blame] | 993 | static int dummy_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) |
David Howells | 63cb344 | 2008-01-15 23:47:35 +0000 | [diff] [blame] | 994 | { |
| 995 | return -EOPNOTSUPP; |
| 996 | } |
| 997 | |
Catherine Zhang | dc49c1f | 2006-08-02 14:12:06 -0700 | [diff] [blame] | 998 | static void dummy_release_secctx(char *secdata, u32 seclen) |
| 999 | { |
| 1000 | } |
| 1001 | |
David Howells | 29db919 | 2005-10-30 15:02:44 -0800 | [diff] [blame] | 1002 | #ifdef CONFIG_KEYS |
David Howells | 7e047ef | 2006-06-26 00:24:50 -0700 | [diff] [blame] | 1003 | static inline int dummy_key_alloc(struct key *key, struct task_struct *ctx, |
| 1004 | unsigned long flags) |
David Howells | 29db919 | 2005-10-30 15:02:44 -0800 | [diff] [blame] | 1005 | { |
| 1006 | return 0; |
| 1007 | } |
| 1008 | |
| 1009 | static inline void dummy_key_free(struct key *key) |
| 1010 | { |
| 1011 | } |
| 1012 | |
| 1013 | static inline int dummy_key_permission(key_ref_t key_ref, |
| 1014 | struct task_struct *context, |
| 1015 | key_perm_t perm) |
| 1016 | { |
| 1017 | return 0; |
| 1018 | } |
David Howells | 70a5bb7 | 2008-04-29 01:01:26 -0700 | [diff] [blame] | 1019 | |
| 1020 | static int dummy_key_getsecurity(struct key *key, char **_buffer) |
| 1021 | { |
| 1022 | *_buffer = NULL; |
| 1023 | return 0; |
| 1024 | } |
| 1025 | |
David Howells | 29db919 | 2005-10-30 15:02:44 -0800 | [diff] [blame] | 1026 | #endif /* CONFIG_KEYS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | |
Ahmed S. Darwish | 03d37d2 | 2008-03-01 22:00:05 +0200 | [diff] [blame] | 1028 | #ifdef CONFIG_AUDIT |
| 1029 | static inline int dummy_audit_rule_init(u32 field, u32 op, char *rulestr, |
| 1030 | void **lsmrule) |
| 1031 | { |
| 1032 | return 0; |
| 1033 | } |
| 1034 | |
| 1035 | static inline int dummy_audit_rule_known(struct audit_krule *krule) |
| 1036 | { |
| 1037 | return 0; |
| 1038 | } |
| 1039 | |
| 1040 | static inline int dummy_audit_rule_match(u32 secid, u32 field, u32 op, |
| 1041 | void *lsmrule, |
| 1042 | struct audit_context *actx) |
| 1043 | { |
| 1044 | return 0; |
| 1045 | } |
| 1046 | |
| 1047 | static inline void dummy_audit_rule_free(void *lsmrule) |
| 1048 | { } |
| 1049 | |
| 1050 | #endif /* CONFIG_AUDIT */ |
| 1051 | |
Ahmed S. Darwish | 076c54c | 2008-03-06 18:09:10 +0200 | [diff] [blame] | 1052 | struct security_operations dummy_security_ops = { |
| 1053 | .name = "dummy", |
| 1054 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1055 | |
| 1056 | #define set_to_dummy_if_null(ops, function) \ |
| 1057 | do { \ |
| 1058 | if (!ops->function) { \ |
| 1059 | ops->function = dummy_##function; \ |
| 1060 | pr_debug("Had to override the " #function \ |
| 1061 | " security operation with the dummy one.\n");\ |
| 1062 | } \ |
| 1063 | } while (0) |
| 1064 | |
| 1065 | void security_fixup_ops (struct security_operations *ops) |
| 1066 | { |
| 1067 | set_to_dummy_if_null(ops, ptrace); |
| 1068 | set_to_dummy_if_null(ops, capget); |
| 1069 | set_to_dummy_if_null(ops, capset_check); |
| 1070 | set_to_dummy_if_null(ops, capset_set); |
| 1071 | set_to_dummy_if_null(ops, acct); |
| 1072 | set_to_dummy_if_null(ops, capable); |
| 1073 | set_to_dummy_if_null(ops, quotactl); |
| 1074 | set_to_dummy_if_null(ops, quota_on); |
| 1075 | set_to_dummy_if_null(ops, sysctl); |
| 1076 | set_to_dummy_if_null(ops, syslog); |
| 1077 | set_to_dummy_if_null(ops, settime); |
| 1078 | set_to_dummy_if_null(ops, vm_enough_memory); |
| 1079 | set_to_dummy_if_null(ops, bprm_alloc_security); |
| 1080 | set_to_dummy_if_null(ops, bprm_free_security); |
| 1081 | set_to_dummy_if_null(ops, bprm_apply_creds); |
| 1082 | set_to_dummy_if_null(ops, bprm_post_apply_creds); |
| 1083 | set_to_dummy_if_null(ops, bprm_set_security); |
| 1084 | set_to_dummy_if_null(ops, bprm_check_security); |
| 1085 | set_to_dummy_if_null(ops, bprm_secureexec); |
| 1086 | set_to_dummy_if_null(ops, sb_alloc_security); |
| 1087 | set_to_dummy_if_null(ops, sb_free_security); |
| 1088 | set_to_dummy_if_null(ops, sb_copy_data); |
| 1089 | set_to_dummy_if_null(ops, sb_kern_mount); |
| 1090 | set_to_dummy_if_null(ops, sb_statfs); |
| 1091 | set_to_dummy_if_null(ops, sb_mount); |
| 1092 | set_to_dummy_if_null(ops, sb_check_sb); |
| 1093 | set_to_dummy_if_null(ops, sb_umount); |
| 1094 | set_to_dummy_if_null(ops, sb_umount_close); |
| 1095 | set_to_dummy_if_null(ops, sb_umount_busy); |
| 1096 | set_to_dummy_if_null(ops, sb_post_remount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | set_to_dummy_if_null(ops, sb_post_addmount); |
| 1098 | set_to_dummy_if_null(ops, sb_pivotroot); |
| 1099 | set_to_dummy_if_null(ops, sb_post_pivotroot); |
Eric Paris | c9180a5 | 2007-11-30 13:00:35 -0500 | [diff] [blame] | 1100 | set_to_dummy_if_null(ops, sb_get_mnt_opts); |
| 1101 | set_to_dummy_if_null(ops, sb_set_mnt_opts); |
| 1102 | set_to_dummy_if_null(ops, sb_clone_mnt_opts); |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 1103 | set_to_dummy_if_null(ops, sb_parse_opts_str); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | set_to_dummy_if_null(ops, inode_alloc_security); |
| 1105 | set_to_dummy_if_null(ops, inode_free_security); |
Stephen Smalley | 5e41ff9 | 2005-09-09 13:01:35 -0700 | [diff] [blame] | 1106 | set_to_dummy_if_null(ops, inode_init_security); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | set_to_dummy_if_null(ops, inode_create); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | set_to_dummy_if_null(ops, inode_link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | set_to_dummy_if_null(ops, inode_unlink); |
| 1110 | set_to_dummy_if_null(ops, inode_symlink); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1111 | set_to_dummy_if_null(ops, inode_mkdir); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | set_to_dummy_if_null(ops, inode_rmdir); |
| 1113 | set_to_dummy_if_null(ops, inode_mknod); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1114 | set_to_dummy_if_null(ops, inode_rename); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | set_to_dummy_if_null(ops, inode_readlink); |
| 1116 | set_to_dummy_if_null(ops, inode_follow_link); |
| 1117 | set_to_dummy_if_null(ops, inode_permission); |
| 1118 | set_to_dummy_if_null(ops, inode_setattr); |
| 1119 | set_to_dummy_if_null(ops, inode_getattr); |
| 1120 | set_to_dummy_if_null(ops, inode_delete); |
| 1121 | set_to_dummy_if_null(ops, inode_setxattr); |
| 1122 | set_to_dummy_if_null(ops, inode_post_setxattr); |
| 1123 | set_to_dummy_if_null(ops, inode_getxattr); |
| 1124 | set_to_dummy_if_null(ops, inode_listxattr); |
| 1125 | set_to_dummy_if_null(ops, inode_removexattr); |
Serge E. Hallyn | b537677 | 2007-10-16 23:31:36 -0700 | [diff] [blame] | 1126 | set_to_dummy_if_null(ops, inode_need_killpriv); |
| 1127 | set_to_dummy_if_null(ops, inode_killpriv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | set_to_dummy_if_null(ops, inode_getsecurity); |
| 1129 | set_to_dummy_if_null(ops, inode_setsecurity); |
| 1130 | set_to_dummy_if_null(ops, inode_listsecurity); |
Ahmed S. Darwish | 8a07619 | 2008-03-01 21:51:09 +0200 | [diff] [blame] | 1131 | set_to_dummy_if_null(ops, inode_getsecid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1132 | set_to_dummy_if_null(ops, file_permission); |
| 1133 | set_to_dummy_if_null(ops, file_alloc_security); |
| 1134 | set_to_dummy_if_null(ops, file_free_security); |
| 1135 | set_to_dummy_if_null(ops, file_ioctl); |
| 1136 | set_to_dummy_if_null(ops, file_mmap); |
| 1137 | set_to_dummy_if_null(ops, file_mprotect); |
| 1138 | set_to_dummy_if_null(ops, file_lock); |
| 1139 | set_to_dummy_if_null(ops, file_fcntl); |
| 1140 | set_to_dummy_if_null(ops, file_set_fowner); |
| 1141 | set_to_dummy_if_null(ops, file_send_sigiotask); |
| 1142 | set_to_dummy_if_null(ops, file_receive); |
Yuichi Nakamura | 788e7dd | 2007-09-14 09:27:07 +0900 | [diff] [blame] | 1143 | set_to_dummy_if_null(ops, dentry_open); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | set_to_dummy_if_null(ops, task_create); |
| 1145 | set_to_dummy_if_null(ops, task_alloc_security); |
| 1146 | set_to_dummy_if_null(ops, task_free_security); |
| 1147 | set_to_dummy_if_null(ops, task_setuid); |
| 1148 | set_to_dummy_if_null(ops, task_post_setuid); |
| 1149 | set_to_dummy_if_null(ops, task_setgid); |
| 1150 | set_to_dummy_if_null(ops, task_setpgid); |
| 1151 | set_to_dummy_if_null(ops, task_getpgid); |
| 1152 | set_to_dummy_if_null(ops, task_getsid); |
David Quigley | f9008e4 | 2006-06-30 01:55:46 -0700 | [diff] [blame] | 1153 | set_to_dummy_if_null(ops, task_getsecid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | set_to_dummy_if_null(ops, task_setgroups); |
| 1155 | set_to_dummy_if_null(ops, task_setnice); |
James Morris | 03e6806 | 2006-06-23 02:03:58 -0700 | [diff] [blame] | 1156 | set_to_dummy_if_null(ops, task_setioprio); |
David Quigley | a1836a4 | 2006-06-30 01:55:49 -0700 | [diff] [blame] | 1157 | set_to_dummy_if_null(ops, task_getioprio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | set_to_dummy_if_null(ops, task_setrlimit); |
| 1159 | set_to_dummy_if_null(ops, task_setscheduler); |
| 1160 | set_to_dummy_if_null(ops, task_getscheduler); |
David Quigley | 3560154 | 2006-06-23 02:04:01 -0700 | [diff] [blame] | 1161 | set_to_dummy_if_null(ops, task_movememory); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1162 | set_to_dummy_if_null(ops, task_wait); |
| 1163 | set_to_dummy_if_null(ops, task_kill); |
| 1164 | set_to_dummy_if_null(ops, task_prctl); |
| 1165 | set_to_dummy_if_null(ops, task_reparent_to_init); |
| 1166 | set_to_dummy_if_null(ops, task_to_inode); |
| 1167 | set_to_dummy_if_null(ops, ipc_permission); |
Ahmed S. Darwish | 8a07619 | 2008-03-01 21:51:09 +0200 | [diff] [blame] | 1168 | set_to_dummy_if_null(ops, ipc_getsecid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1169 | set_to_dummy_if_null(ops, msg_msg_alloc_security); |
| 1170 | set_to_dummy_if_null(ops, msg_msg_free_security); |
| 1171 | set_to_dummy_if_null(ops, msg_queue_alloc_security); |
| 1172 | set_to_dummy_if_null(ops, msg_queue_free_security); |
| 1173 | set_to_dummy_if_null(ops, msg_queue_associate); |
| 1174 | set_to_dummy_if_null(ops, msg_queue_msgctl); |
| 1175 | set_to_dummy_if_null(ops, msg_queue_msgsnd); |
| 1176 | set_to_dummy_if_null(ops, msg_queue_msgrcv); |
| 1177 | set_to_dummy_if_null(ops, shm_alloc_security); |
| 1178 | set_to_dummy_if_null(ops, shm_free_security); |
| 1179 | set_to_dummy_if_null(ops, shm_associate); |
| 1180 | set_to_dummy_if_null(ops, shm_shmctl); |
| 1181 | set_to_dummy_if_null(ops, shm_shmat); |
| 1182 | set_to_dummy_if_null(ops, sem_alloc_security); |
| 1183 | set_to_dummy_if_null(ops, sem_free_security); |
| 1184 | set_to_dummy_if_null(ops, sem_associate); |
| 1185 | set_to_dummy_if_null(ops, sem_semctl); |
| 1186 | set_to_dummy_if_null(ops, sem_semop); |
| 1187 | set_to_dummy_if_null(ops, netlink_send); |
| 1188 | set_to_dummy_if_null(ops, netlink_recv); |
| 1189 | set_to_dummy_if_null(ops, register_security); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1190 | set_to_dummy_if_null(ops, d_instantiate); |
| 1191 | set_to_dummy_if_null(ops, getprocattr); |
| 1192 | set_to_dummy_if_null(ops, setprocattr); |
Catherine Zhang | dc49c1f | 2006-08-02 14:12:06 -0700 | [diff] [blame] | 1193 | set_to_dummy_if_null(ops, secid_to_secctx); |
David Howells | 63cb344 | 2008-01-15 23:47:35 +0000 | [diff] [blame] | 1194 | set_to_dummy_if_null(ops, secctx_to_secid); |
Catherine Zhang | dc49c1f | 2006-08-02 14:12:06 -0700 | [diff] [blame] | 1195 | set_to_dummy_if_null(ops, release_secctx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | #ifdef CONFIG_SECURITY_NETWORK |
| 1197 | set_to_dummy_if_null(ops, unix_stream_connect); |
| 1198 | set_to_dummy_if_null(ops, unix_may_send); |
| 1199 | set_to_dummy_if_null(ops, socket_create); |
| 1200 | set_to_dummy_if_null(ops, socket_post_create); |
| 1201 | set_to_dummy_if_null(ops, socket_bind); |
| 1202 | set_to_dummy_if_null(ops, socket_connect); |
| 1203 | set_to_dummy_if_null(ops, socket_listen); |
| 1204 | set_to_dummy_if_null(ops, socket_accept); |
| 1205 | set_to_dummy_if_null(ops, socket_post_accept); |
| 1206 | set_to_dummy_if_null(ops, socket_sendmsg); |
| 1207 | set_to_dummy_if_null(ops, socket_recvmsg); |
| 1208 | set_to_dummy_if_null(ops, socket_getsockname); |
| 1209 | set_to_dummy_if_null(ops, socket_getpeername); |
| 1210 | set_to_dummy_if_null(ops, socket_setsockopt); |
| 1211 | set_to_dummy_if_null(ops, socket_getsockopt); |
| 1212 | set_to_dummy_if_null(ops, socket_shutdown); |
| 1213 | set_to_dummy_if_null(ops, socket_sock_rcv_skb); |
Arnaldo Carvalho de Melo | c841aa0 | 2006-03-20 22:47:37 -0800 | [diff] [blame] | 1214 | set_to_dummy_if_null(ops, socket_getpeersec_stream); |
| 1215 | set_to_dummy_if_null(ops, socket_getpeersec_dgram); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1216 | set_to_dummy_if_null(ops, sk_alloc_security); |
| 1217 | set_to_dummy_if_null(ops, sk_free_security); |
Venkat Yekkirala | 892c141 | 2006-08-04 23:08:56 -0700 | [diff] [blame] | 1218 | set_to_dummy_if_null(ops, sk_clone_security); |
Venkat Yekkirala | beb8d13 | 2006-08-04 23:12:42 -0700 | [diff] [blame] | 1219 | set_to_dummy_if_null(ops, sk_getsecid); |
Venkat Yekkirala | 4237c75 | 2006-07-24 23:32:50 -0700 | [diff] [blame] | 1220 | set_to_dummy_if_null(ops, sock_graft); |
| 1221 | set_to_dummy_if_null(ops, inet_conn_request); |
| 1222 | set_to_dummy_if_null(ops, inet_csk_clone); |
Venkat Yekkirala | 6b87769 | 2006-11-08 17:04:09 -0600 | [diff] [blame] | 1223 | set_to_dummy_if_null(ops, inet_conn_established); |
Venkat Yekkirala | 4237c75 | 2006-07-24 23:32:50 -0700 | [diff] [blame] | 1224 | set_to_dummy_if_null(ops, req_classify_flow); |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 1225 | #endif /* CONFIG_SECURITY_NETWORK */ |
| 1226 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
| 1227 | set_to_dummy_if_null(ops, xfrm_policy_alloc_security); |
| 1228 | set_to_dummy_if_null(ops, xfrm_policy_clone_security); |
| 1229 | set_to_dummy_if_null(ops, xfrm_policy_free_security); |
Catherine Zhang | c8c05a8 | 2006-06-08 23:39:49 -0700 | [diff] [blame] | 1230 | set_to_dummy_if_null(ops, xfrm_policy_delete_security); |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 1231 | set_to_dummy_if_null(ops, xfrm_state_alloc_security); |
| 1232 | set_to_dummy_if_null(ops, xfrm_state_free_security); |
Catherine Zhang | c8c05a8 | 2006-06-08 23:39:49 -0700 | [diff] [blame] | 1233 | set_to_dummy_if_null(ops, xfrm_state_delete_security); |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 1234 | set_to_dummy_if_null(ops, xfrm_policy_lookup); |
Venkat Yekkirala | e0d1caa | 2006-07-24 23:29:07 -0700 | [diff] [blame] | 1235 | set_to_dummy_if_null(ops, xfrm_state_pol_flow_match); |
Venkat Yekkirala | e0d1caa | 2006-07-24 23:29:07 -0700 | [diff] [blame] | 1236 | set_to_dummy_if_null(ops, xfrm_decode_session); |
Trent Jaeger | df71837 | 2005-12-13 23:12:27 -0800 | [diff] [blame] | 1237 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
David Howells | 29db919 | 2005-10-30 15:02:44 -0800 | [diff] [blame] | 1238 | #ifdef CONFIG_KEYS |
| 1239 | set_to_dummy_if_null(ops, key_alloc); |
| 1240 | set_to_dummy_if_null(ops, key_free); |
| 1241 | set_to_dummy_if_null(ops, key_permission); |
David Howells | 70a5bb7 | 2008-04-29 01:01:26 -0700 | [diff] [blame] | 1242 | set_to_dummy_if_null(ops, key_getsecurity); |
David Howells | 29db919 | 2005-10-30 15:02:44 -0800 | [diff] [blame] | 1243 | #endif /* CONFIG_KEYS */ |
Ahmed S. Darwish | 03d37d2 | 2008-03-01 22:00:05 +0200 | [diff] [blame] | 1244 | #ifdef CONFIG_AUDIT |
| 1245 | set_to_dummy_if_null(ops, audit_rule_init); |
| 1246 | set_to_dummy_if_null(ops, audit_rule_known); |
| 1247 | set_to_dummy_if_null(ops, audit_rule_match); |
| 1248 | set_to_dummy_if_null(ops, audit_rule_free); |
| 1249 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | } |
| 1251 | |