Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Capabilities Linux Security Module |
| 3 | * |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 4 | * This is the default security module in case no other module is loaded. |
| 5 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | */ |
| 12 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/security.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 15 | static int cap_acct(struct file *file) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | return 0; |
| 18 | } |
| 19 | |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 20 | static int cap_sysctl(ctl_table *table, int op) |
| 21 | { |
| 22 | return 0; |
| 23 | } |
| 24 | |
| 25 | static int cap_quotactl(int cmds, int type, int id, struct super_block *sb) |
| 26 | { |
| 27 | return 0; |
| 28 | } |
| 29 | |
| 30 | static int cap_quota_on(struct dentry *dentry) |
| 31 | { |
| 32 | return 0; |
| 33 | } |
| 34 | |
David Howells | a6f76f2 | 2008-11-14 10:39:24 +1100 | [diff] [blame] | 35 | static int cap_bprm_check_security (struct linux_binprm *bprm) |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 36 | { |
| 37 | return 0; |
| 38 | } |
| 39 | |
David Howells | a6f76f2 | 2008-11-14 10:39:24 +1100 | [diff] [blame] | 40 | static void cap_bprm_committing_creds(struct linux_binprm *bprm) |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 41 | { |
| 42 | } |
| 43 | |
David Howells | a6f76f2 | 2008-11-14 10:39:24 +1100 | [diff] [blame] | 44 | static void cap_bprm_committed_creds(struct linux_binprm *bprm) |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 45 | { |
| 46 | } |
| 47 | |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 48 | static int cap_sb_alloc_security(struct super_block *sb) |
| 49 | { |
| 50 | return 0; |
| 51 | } |
| 52 | |
| 53 | static void cap_sb_free_security(struct super_block *sb) |
| 54 | { |
| 55 | } |
| 56 | |
| 57 | static int cap_sb_copy_data(char *orig, char *copy) |
| 58 | { |
| 59 | return 0; |
| 60 | } |
| 61 | |
James Morris | 12204e2 | 2008-12-19 10:44:42 +1100 | [diff] [blame^] | 62 | static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data) |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 63 | { |
| 64 | return 0; |
| 65 | } |
| 66 | |
| 67 | static int cap_sb_show_options(struct seq_file *m, struct super_block *sb) |
| 68 | { |
| 69 | return 0; |
| 70 | } |
| 71 | |
| 72 | static int cap_sb_statfs(struct dentry *dentry) |
| 73 | { |
| 74 | return 0; |
| 75 | } |
| 76 | |
| 77 | static int cap_sb_mount(char *dev_name, struct path *path, char *type, |
| 78 | unsigned long flags, void *data) |
| 79 | { |
| 80 | return 0; |
| 81 | } |
| 82 | |
| 83 | static int cap_sb_check_sb(struct vfsmount *mnt, struct path *path) |
| 84 | { |
| 85 | return 0; |
| 86 | } |
| 87 | |
| 88 | static int cap_sb_umount(struct vfsmount *mnt, int flags) |
| 89 | { |
| 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | static void cap_sb_umount_close(struct vfsmount *mnt) |
| 94 | { |
| 95 | } |
| 96 | |
| 97 | static void cap_sb_umount_busy(struct vfsmount *mnt) |
| 98 | { |
| 99 | } |
| 100 | |
| 101 | static void cap_sb_post_remount(struct vfsmount *mnt, unsigned long flags, |
| 102 | void *data) |
| 103 | { |
| 104 | } |
| 105 | |
| 106 | static void cap_sb_post_addmount(struct vfsmount *mnt, struct path *path) |
| 107 | { |
| 108 | } |
| 109 | |
| 110 | static int cap_sb_pivotroot(struct path *old_path, struct path *new_path) |
| 111 | { |
| 112 | return 0; |
| 113 | } |
| 114 | |
| 115 | static void cap_sb_post_pivotroot(struct path *old_path, struct path *new_path) |
| 116 | { |
| 117 | } |
| 118 | |
| 119 | static int cap_sb_set_mnt_opts(struct super_block *sb, |
| 120 | struct security_mnt_opts *opts) |
| 121 | { |
| 122 | if (unlikely(opts->num_mnt_opts)) |
| 123 | return -EOPNOTSUPP; |
| 124 | return 0; |
| 125 | } |
| 126 | |
| 127 | static void cap_sb_clone_mnt_opts(const struct super_block *oldsb, |
| 128 | struct super_block *newsb) |
| 129 | { |
| 130 | } |
| 131 | |
| 132 | static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) |
| 133 | { |
| 134 | return 0; |
| 135 | } |
| 136 | |
| 137 | static int cap_inode_alloc_security(struct inode *inode) |
| 138 | { |
| 139 | return 0; |
| 140 | } |
| 141 | |
| 142 | static void cap_inode_free_security(struct inode *inode) |
| 143 | { |
| 144 | } |
| 145 | |
| 146 | static int cap_inode_init_security(struct inode *inode, struct inode *dir, |
| 147 | char **name, void **value, size_t *len) |
| 148 | { |
| 149 | return -EOPNOTSUPP; |
| 150 | } |
| 151 | |
| 152 | static int cap_inode_create(struct inode *inode, struct dentry *dentry, |
| 153 | int mask) |
| 154 | { |
| 155 | return 0; |
| 156 | } |
| 157 | |
| 158 | static int cap_inode_link(struct dentry *old_dentry, struct inode *inode, |
| 159 | struct dentry *new_dentry) |
| 160 | { |
| 161 | return 0; |
| 162 | } |
| 163 | |
| 164 | static int cap_inode_unlink(struct inode *inode, struct dentry *dentry) |
| 165 | { |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | static int cap_inode_symlink(struct inode *inode, struct dentry *dentry, |
| 170 | const char *name) |
| 171 | { |
| 172 | return 0; |
| 173 | } |
| 174 | |
| 175 | static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry, |
| 176 | int mask) |
| 177 | { |
| 178 | return 0; |
| 179 | } |
| 180 | |
| 181 | static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry) |
| 182 | { |
| 183 | return 0; |
| 184 | } |
| 185 | |
| 186 | static int cap_inode_mknod(struct inode *inode, struct dentry *dentry, |
| 187 | int mode, dev_t dev) |
| 188 | { |
| 189 | return 0; |
| 190 | } |
| 191 | |
| 192 | static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry, |
| 193 | struct inode *new_inode, struct dentry *new_dentry) |
| 194 | { |
| 195 | return 0; |
| 196 | } |
| 197 | |
| 198 | static int cap_inode_readlink(struct dentry *dentry) |
| 199 | { |
| 200 | return 0; |
| 201 | } |
| 202 | |
| 203 | static int cap_inode_follow_link(struct dentry *dentry, |
| 204 | struct nameidata *nameidata) |
| 205 | { |
| 206 | return 0; |
| 207 | } |
| 208 | |
Al Viro | b77b064 | 2008-07-17 09:37:02 -0400 | [diff] [blame] | 209 | static int cap_inode_permission(struct inode *inode, int mask) |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 210 | { |
| 211 | return 0; |
| 212 | } |
| 213 | |
| 214 | static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr) |
| 215 | { |
| 216 | return 0; |
| 217 | } |
| 218 | |
| 219 | static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) |
| 220 | { |
| 221 | return 0; |
| 222 | } |
| 223 | |
| 224 | static void cap_inode_delete(struct inode *ino) |
| 225 | { |
| 226 | } |
| 227 | |
| 228 | static void cap_inode_post_setxattr(struct dentry *dentry, const char *name, |
| 229 | const void *value, size_t size, int flags) |
| 230 | { |
| 231 | } |
| 232 | |
| 233 | static int cap_inode_getxattr(struct dentry *dentry, const char *name) |
| 234 | { |
| 235 | return 0; |
| 236 | } |
| 237 | |
| 238 | static int cap_inode_listxattr(struct dentry *dentry) |
| 239 | { |
| 240 | return 0; |
| 241 | } |
| 242 | |
| 243 | static int cap_inode_getsecurity(const struct inode *inode, const char *name, |
| 244 | void **buffer, bool alloc) |
| 245 | { |
| 246 | return -EOPNOTSUPP; |
| 247 | } |
| 248 | |
| 249 | static int cap_inode_setsecurity(struct inode *inode, const char *name, |
| 250 | const void *value, size_t size, int flags) |
| 251 | { |
| 252 | return -EOPNOTSUPP; |
| 253 | } |
| 254 | |
| 255 | static int cap_inode_listsecurity(struct inode *inode, char *buffer, |
| 256 | size_t buffer_size) |
| 257 | { |
| 258 | return 0; |
| 259 | } |
| 260 | |
| 261 | static void cap_inode_getsecid(const struct inode *inode, u32 *secid) |
| 262 | { |
| 263 | *secid = 0; |
| 264 | } |
| 265 | |
| 266 | static int cap_file_permission(struct file *file, int mask) |
| 267 | { |
| 268 | return 0; |
| 269 | } |
| 270 | |
| 271 | static int cap_file_alloc_security(struct file *file) |
| 272 | { |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | static void cap_file_free_security(struct file *file) |
| 277 | { |
| 278 | } |
| 279 | |
| 280 | static int cap_file_ioctl(struct file *file, unsigned int command, |
| 281 | unsigned long arg) |
| 282 | { |
| 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | static int cap_file_mmap(struct file *file, unsigned long reqprot, |
| 287 | unsigned long prot, unsigned long flags, |
| 288 | unsigned long addr, unsigned long addr_only) |
| 289 | { |
| 290 | if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO)) |
| 291 | return -EACCES; |
| 292 | return 0; |
| 293 | } |
| 294 | |
| 295 | static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, |
| 296 | unsigned long prot) |
| 297 | { |
| 298 | return 0; |
| 299 | } |
| 300 | |
| 301 | static int cap_file_lock(struct file *file, unsigned int cmd) |
| 302 | { |
| 303 | return 0; |
| 304 | } |
| 305 | |
| 306 | static int cap_file_fcntl(struct file *file, unsigned int cmd, |
| 307 | unsigned long arg) |
| 308 | { |
| 309 | return 0; |
| 310 | } |
| 311 | |
| 312 | static int cap_file_set_fowner(struct file *file) |
| 313 | { |
| 314 | return 0; |
| 315 | } |
| 316 | |
| 317 | static int cap_file_send_sigiotask(struct task_struct *tsk, |
| 318 | struct fown_struct *fown, int sig) |
| 319 | { |
| 320 | return 0; |
| 321 | } |
| 322 | |
| 323 | static int cap_file_receive(struct file *file) |
| 324 | { |
| 325 | return 0; |
| 326 | } |
| 327 | |
David Howells | 745ca24 | 2008-11-14 10:39:22 +1100 | [diff] [blame] | 328 | static int cap_dentry_open(struct file *file, const struct cred *cred) |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 329 | { |
| 330 | return 0; |
| 331 | } |
| 332 | |
| 333 | static int cap_task_create(unsigned long clone_flags) |
| 334 | { |
| 335 | return 0; |
| 336 | } |
| 337 | |
David Howells | d84f4f9 | 2008-11-14 10:39:23 +1100 | [diff] [blame] | 338 | static void cap_cred_free(struct cred *cred) |
| 339 | { |
| 340 | } |
| 341 | |
| 342 | static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp) |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 343 | { |
| 344 | return 0; |
| 345 | } |
| 346 | |
David Howells | d84f4f9 | 2008-11-14 10:39:23 +1100 | [diff] [blame] | 347 | static void cap_cred_commit(struct cred *new, const struct cred *old) |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 348 | { |
| 349 | } |
| 350 | |
David Howells | 3a3b7ce | 2008-11-14 10:39:28 +1100 | [diff] [blame] | 351 | static int cap_kernel_act_as(struct cred *new, u32 secid) |
| 352 | { |
| 353 | return 0; |
| 354 | } |
| 355 | |
| 356 | static int cap_kernel_create_files_as(struct cred *new, struct inode *inode) |
| 357 | { |
| 358 | return 0; |
| 359 | } |
| 360 | |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 361 | static int cap_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags) |
| 362 | { |
| 363 | return 0; |
| 364 | } |
| 365 | |
| 366 | static int cap_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags) |
| 367 | { |
| 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | static int cap_task_setpgid(struct task_struct *p, pid_t pgid) |
| 372 | { |
| 373 | return 0; |
| 374 | } |
| 375 | |
| 376 | static int cap_task_getpgid(struct task_struct *p) |
| 377 | { |
| 378 | return 0; |
| 379 | } |
| 380 | |
| 381 | static int cap_task_getsid(struct task_struct *p) |
| 382 | { |
| 383 | return 0; |
| 384 | } |
| 385 | |
| 386 | static void cap_task_getsecid(struct task_struct *p, u32 *secid) |
| 387 | { |
| 388 | *secid = 0; |
| 389 | } |
| 390 | |
| 391 | static int cap_task_setgroups(struct group_info *group_info) |
| 392 | { |
| 393 | return 0; |
| 394 | } |
| 395 | |
| 396 | static int cap_task_getioprio(struct task_struct *p) |
| 397 | { |
| 398 | return 0; |
| 399 | } |
| 400 | |
| 401 | static int cap_task_setrlimit(unsigned int resource, struct rlimit *new_rlim) |
| 402 | { |
| 403 | return 0; |
| 404 | } |
| 405 | |
| 406 | static int cap_task_getscheduler(struct task_struct *p) |
| 407 | { |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | static int cap_task_movememory(struct task_struct *p) |
| 412 | { |
| 413 | return 0; |
| 414 | } |
| 415 | |
| 416 | static int cap_task_wait(struct task_struct *p) |
| 417 | { |
| 418 | return 0; |
| 419 | } |
| 420 | |
| 421 | static int cap_task_kill(struct task_struct *p, struct siginfo *info, |
| 422 | int sig, u32 secid) |
| 423 | { |
| 424 | return 0; |
| 425 | } |
| 426 | |
| 427 | static void cap_task_to_inode(struct task_struct *p, struct inode *inode) |
| 428 | { |
| 429 | } |
| 430 | |
| 431 | static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag) |
| 432 | { |
| 433 | return 0; |
| 434 | } |
| 435 | |
| 436 | static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
| 437 | { |
| 438 | *secid = 0; |
| 439 | } |
| 440 | |
| 441 | static int cap_msg_msg_alloc_security(struct msg_msg *msg) |
| 442 | { |
| 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | static void cap_msg_msg_free_security(struct msg_msg *msg) |
| 447 | { |
| 448 | } |
| 449 | |
| 450 | static int cap_msg_queue_alloc_security(struct msg_queue *msq) |
| 451 | { |
| 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | static void cap_msg_queue_free_security(struct msg_queue *msq) |
| 456 | { |
| 457 | } |
| 458 | |
| 459 | static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg) |
| 460 | { |
| 461 | return 0; |
| 462 | } |
| 463 | |
| 464 | static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd) |
| 465 | { |
| 466 | return 0; |
| 467 | } |
| 468 | |
| 469 | static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg, |
| 470 | int msgflg) |
| 471 | { |
| 472 | return 0; |
| 473 | } |
| 474 | |
| 475 | static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, |
| 476 | struct task_struct *target, long type, int mode) |
| 477 | { |
| 478 | return 0; |
| 479 | } |
| 480 | |
| 481 | static int cap_shm_alloc_security(struct shmid_kernel *shp) |
| 482 | { |
| 483 | return 0; |
| 484 | } |
| 485 | |
| 486 | static void cap_shm_free_security(struct shmid_kernel *shp) |
| 487 | { |
| 488 | } |
| 489 | |
| 490 | static int cap_shm_associate(struct shmid_kernel *shp, int shmflg) |
| 491 | { |
| 492 | return 0; |
| 493 | } |
| 494 | |
| 495 | static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd) |
| 496 | { |
| 497 | return 0; |
| 498 | } |
| 499 | |
| 500 | static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, |
| 501 | int shmflg) |
| 502 | { |
| 503 | return 0; |
| 504 | } |
| 505 | |
| 506 | static int cap_sem_alloc_security(struct sem_array *sma) |
| 507 | { |
| 508 | return 0; |
| 509 | } |
| 510 | |
| 511 | static void cap_sem_free_security(struct sem_array *sma) |
| 512 | { |
| 513 | } |
| 514 | |
| 515 | static int cap_sem_associate(struct sem_array *sma, int semflg) |
| 516 | { |
| 517 | return 0; |
| 518 | } |
| 519 | |
| 520 | static int cap_sem_semctl(struct sem_array *sma, int cmd) |
| 521 | { |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops, |
| 526 | unsigned nsops, int alter) |
| 527 | { |
| 528 | return 0; |
| 529 | } |
| 530 | |
| 531 | #ifdef CONFIG_SECURITY_NETWORK |
| 532 | static int cap_unix_stream_connect(struct socket *sock, struct socket *other, |
| 533 | struct sock *newsk) |
| 534 | { |
| 535 | return 0; |
| 536 | } |
| 537 | |
| 538 | static int cap_unix_may_send(struct socket *sock, struct socket *other) |
| 539 | { |
| 540 | return 0; |
| 541 | } |
| 542 | |
| 543 | static int cap_socket_create(int family, int type, int protocol, int kern) |
| 544 | { |
| 545 | return 0; |
| 546 | } |
| 547 | |
| 548 | static int cap_socket_post_create(struct socket *sock, int family, int type, |
| 549 | int protocol, int kern) |
| 550 | { |
| 551 | return 0; |
| 552 | } |
| 553 | |
| 554 | static int cap_socket_bind(struct socket *sock, struct sockaddr *address, |
| 555 | int addrlen) |
| 556 | { |
| 557 | return 0; |
| 558 | } |
| 559 | |
| 560 | static int cap_socket_connect(struct socket *sock, struct sockaddr *address, |
| 561 | int addrlen) |
| 562 | { |
| 563 | return 0; |
| 564 | } |
| 565 | |
| 566 | static int cap_socket_listen(struct socket *sock, int backlog) |
| 567 | { |
| 568 | return 0; |
| 569 | } |
| 570 | |
| 571 | static int cap_socket_accept(struct socket *sock, struct socket *newsock) |
| 572 | { |
| 573 | return 0; |
| 574 | } |
| 575 | |
| 576 | static void cap_socket_post_accept(struct socket *sock, struct socket *newsock) |
| 577 | { |
| 578 | } |
| 579 | |
| 580 | static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) |
| 581 | { |
| 582 | return 0; |
| 583 | } |
| 584 | |
| 585 | static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg, |
| 586 | int size, int flags) |
| 587 | { |
| 588 | return 0; |
| 589 | } |
| 590 | |
| 591 | static int cap_socket_getsockname(struct socket *sock) |
| 592 | { |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | static int cap_socket_getpeername(struct socket *sock) |
| 597 | { |
| 598 | return 0; |
| 599 | } |
| 600 | |
| 601 | static int cap_socket_setsockopt(struct socket *sock, int level, int optname) |
| 602 | { |
| 603 | return 0; |
| 604 | } |
| 605 | |
| 606 | static int cap_socket_getsockopt(struct socket *sock, int level, int optname) |
| 607 | { |
| 608 | return 0; |
| 609 | } |
| 610 | |
| 611 | static int cap_socket_shutdown(struct socket *sock, int how) |
| 612 | { |
| 613 | return 0; |
| 614 | } |
| 615 | |
| 616 | static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) |
| 617 | { |
| 618 | return 0; |
| 619 | } |
| 620 | |
| 621 | static int cap_socket_getpeersec_stream(struct socket *sock, |
| 622 | char __user *optval, |
| 623 | int __user *optlen, unsigned len) |
| 624 | { |
| 625 | return -ENOPROTOOPT; |
| 626 | } |
| 627 | |
| 628 | static int cap_socket_getpeersec_dgram(struct socket *sock, |
| 629 | struct sk_buff *skb, u32 *secid) |
| 630 | { |
| 631 | return -ENOPROTOOPT; |
| 632 | } |
| 633 | |
| 634 | static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority) |
| 635 | { |
| 636 | return 0; |
| 637 | } |
| 638 | |
| 639 | static void cap_sk_free_security(struct sock *sk) |
| 640 | { |
| 641 | } |
| 642 | |
| 643 | static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk) |
| 644 | { |
| 645 | } |
| 646 | |
| 647 | static void cap_sk_getsecid(struct sock *sk, u32 *secid) |
| 648 | { |
| 649 | } |
| 650 | |
| 651 | static void cap_sock_graft(struct sock *sk, struct socket *parent) |
| 652 | { |
| 653 | } |
| 654 | |
| 655 | static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb, |
| 656 | struct request_sock *req) |
| 657 | { |
| 658 | return 0; |
| 659 | } |
| 660 | |
| 661 | static void cap_inet_csk_clone(struct sock *newsk, |
| 662 | const struct request_sock *req) |
| 663 | { |
| 664 | } |
| 665 | |
| 666 | static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb) |
| 667 | { |
| 668 | } |
| 669 | |
| 670 | static void cap_req_classify_flow(const struct request_sock *req, |
| 671 | struct flowi *fl) |
| 672 | { |
| 673 | } |
| 674 | #endif /* CONFIG_SECURITY_NETWORK */ |
| 675 | |
| 676 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
| 677 | static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp, |
| 678 | struct xfrm_user_sec_ctx *sec_ctx) |
| 679 | { |
| 680 | return 0; |
| 681 | } |
| 682 | |
| 683 | static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx, |
| 684 | struct xfrm_sec_ctx **new_ctxp) |
| 685 | { |
| 686 | return 0; |
| 687 | } |
| 688 | |
| 689 | static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx) |
| 690 | { |
| 691 | } |
| 692 | |
| 693 | static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx) |
| 694 | { |
| 695 | return 0; |
| 696 | } |
| 697 | |
| 698 | static int cap_xfrm_state_alloc_security(struct xfrm_state *x, |
| 699 | struct xfrm_user_sec_ctx *sec_ctx, |
| 700 | u32 secid) |
| 701 | { |
| 702 | return 0; |
| 703 | } |
| 704 | |
| 705 | static void cap_xfrm_state_free_security(struct xfrm_state *x) |
| 706 | { |
| 707 | } |
| 708 | |
| 709 | static int cap_xfrm_state_delete_security(struct xfrm_state *x) |
| 710 | { |
| 711 | return 0; |
| 712 | } |
| 713 | |
| 714 | static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir) |
| 715 | { |
| 716 | return 0; |
| 717 | } |
| 718 | |
| 719 | static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x, |
| 720 | struct xfrm_policy *xp, |
| 721 | struct flowi *fl) |
| 722 | { |
| 723 | return 1; |
| 724 | } |
| 725 | |
| 726 | static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall) |
| 727 | { |
| 728 | return 0; |
| 729 | } |
| 730 | |
| 731 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 732 | static void cap_d_instantiate(struct dentry *dentry, struct inode *inode) |
| 733 | { |
| 734 | } |
| 735 | |
| 736 | static int cap_getprocattr(struct task_struct *p, char *name, char **value) |
| 737 | { |
| 738 | return -EINVAL; |
| 739 | } |
| 740 | |
| 741 | static int cap_setprocattr(struct task_struct *p, char *name, void *value, |
| 742 | size_t size) |
| 743 | { |
| 744 | return -EINVAL; |
| 745 | } |
| 746 | |
| 747 | static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
| 748 | { |
| 749 | return -EOPNOTSUPP; |
| 750 | } |
| 751 | |
| 752 | static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) |
| 753 | { |
| 754 | return -EOPNOTSUPP; |
| 755 | } |
| 756 | |
| 757 | static void cap_release_secctx(char *secdata, u32 seclen) |
| 758 | { |
| 759 | } |
| 760 | |
| 761 | #ifdef CONFIG_KEYS |
David Howells | d84f4f9 | 2008-11-14 10:39:23 +1100 | [diff] [blame] | 762 | static int cap_key_alloc(struct key *key, const struct cred *cred, |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 763 | unsigned long flags) |
| 764 | { |
| 765 | return 0; |
| 766 | } |
| 767 | |
| 768 | static void cap_key_free(struct key *key) |
| 769 | { |
| 770 | } |
| 771 | |
David Howells | d84f4f9 | 2008-11-14 10:39:23 +1100 | [diff] [blame] | 772 | static int cap_key_permission(key_ref_t key_ref, const struct cred *cred, |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 773 | key_perm_t perm) |
| 774 | { |
| 775 | return 0; |
| 776 | } |
| 777 | |
| 778 | static int cap_key_getsecurity(struct key *key, char **_buffer) |
| 779 | { |
| 780 | *_buffer = NULL; |
| 781 | return 0; |
| 782 | } |
| 783 | |
| 784 | #endif /* CONFIG_KEYS */ |
| 785 | |
| 786 | #ifdef CONFIG_AUDIT |
| 787 | static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) |
| 788 | { |
| 789 | return 0; |
| 790 | } |
| 791 | |
| 792 | static int cap_audit_rule_known(struct audit_krule *krule) |
| 793 | { |
| 794 | return 0; |
| 795 | } |
| 796 | |
| 797 | static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, |
| 798 | struct audit_context *actx) |
| 799 | { |
| 800 | return 0; |
| 801 | } |
| 802 | |
| 803 | static void cap_audit_rule_free(void *lsmrule) |
| 804 | { |
| 805 | } |
| 806 | #endif /* CONFIG_AUDIT */ |
| 807 | |
| 808 | struct security_operations default_security_ops = { |
| 809 | .name = "default", |
| 810 | }; |
| 811 | |
| 812 | #define set_to_cap_if_null(ops, function) \ |
| 813 | do { \ |
| 814 | if (!ops->function) { \ |
| 815 | ops->function = cap_##function; \ |
| 816 | pr_debug("Had to override the " #function \ |
| 817 | " security operation with the default.\n");\ |
| 818 | } \ |
| 819 | } while (0) |
| 820 | |
| 821 | void security_fixup_ops(struct security_operations *ops) |
| 822 | { |
David Howells | 5cd9c58 | 2008-08-14 11:37:28 +0100 | [diff] [blame] | 823 | set_to_cap_if_null(ops, ptrace_may_access); |
| 824 | set_to_cap_if_null(ops, ptrace_traceme); |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 825 | set_to_cap_if_null(ops, capget); |
David Howells | d84f4f9 | 2008-11-14 10:39:23 +1100 | [diff] [blame] | 826 | set_to_cap_if_null(ops, capset); |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 827 | set_to_cap_if_null(ops, acct); |
| 828 | set_to_cap_if_null(ops, capable); |
| 829 | set_to_cap_if_null(ops, quotactl); |
| 830 | set_to_cap_if_null(ops, quota_on); |
| 831 | set_to_cap_if_null(ops, sysctl); |
| 832 | set_to_cap_if_null(ops, syslog); |
| 833 | set_to_cap_if_null(ops, settime); |
| 834 | set_to_cap_if_null(ops, vm_enough_memory); |
David Howells | a6f76f2 | 2008-11-14 10:39:24 +1100 | [diff] [blame] | 835 | set_to_cap_if_null(ops, bprm_set_creds); |
| 836 | set_to_cap_if_null(ops, bprm_committing_creds); |
| 837 | set_to_cap_if_null(ops, bprm_committed_creds); |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 838 | set_to_cap_if_null(ops, bprm_check_security); |
| 839 | set_to_cap_if_null(ops, bprm_secureexec); |
| 840 | set_to_cap_if_null(ops, sb_alloc_security); |
| 841 | set_to_cap_if_null(ops, sb_free_security); |
| 842 | set_to_cap_if_null(ops, sb_copy_data); |
| 843 | set_to_cap_if_null(ops, sb_kern_mount); |
| 844 | set_to_cap_if_null(ops, sb_show_options); |
| 845 | set_to_cap_if_null(ops, sb_statfs); |
| 846 | set_to_cap_if_null(ops, sb_mount); |
| 847 | set_to_cap_if_null(ops, sb_check_sb); |
| 848 | set_to_cap_if_null(ops, sb_umount); |
| 849 | set_to_cap_if_null(ops, sb_umount_close); |
| 850 | set_to_cap_if_null(ops, sb_umount_busy); |
| 851 | set_to_cap_if_null(ops, sb_post_remount); |
| 852 | set_to_cap_if_null(ops, sb_post_addmount); |
| 853 | set_to_cap_if_null(ops, sb_pivotroot); |
| 854 | set_to_cap_if_null(ops, sb_post_pivotroot); |
| 855 | set_to_cap_if_null(ops, sb_set_mnt_opts); |
| 856 | set_to_cap_if_null(ops, sb_clone_mnt_opts); |
| 857 | set_to_cap_if_null(ops, sb_parse_opts_str); |
| 858 | set_to_cap_if_null(ops, inode_alloc_security); |
| 859 | set_to_cap_if_null(ops, inode_free_security); |
| 860 | set_to_cap_if_null(ops, inode_init_security); |
| 861 | set_to_cap_if_null(ops, inode_create); |
| 862 | set_to_cap_if_null(ops, inode_link); |
| 863 | set_to_cap_if_null(ops, inode_unlink); |
| 864 | set_to_cap_if_null(ops, inode_symlink); |
| 865 | set_to_cap_if_null(ops, inode_mkdir); |
| 866 | set_to_cap_if_null(ops, inode_rmdir); |
| 867 | set_to_cap_if_null(ops, inode_mknod); |
| 868 | set_to_cap_if_null(ops, inode_rename); |
| 869 | set_to_cap_if_null(ops, inode_readlink); |
| 870 | set_to_cap_if_null(ops, inode_follow_link); |
| 871 | set_to_cap_if_null(ops, inode_permission); |
| 872 | set_to_cap_if_null(ops, inode_setattr); |
| 873 | set_to_cap_if_null(ops, inode_getattr); |
| 874 | set_to_cap_if_null(ops, inode_delete); |
| 875 | set_to_cap_if_null(ops, inode_setxattr); |
| 876 | set_to_cap_if_null(ops, inode_post_setxattr); |
| 877 | set_to_cap_if_null(ops, inode_getxattr); |
| 878 | set_to_cap_if_null(ops, inode_listxattr); |
| 879 | set_to_cap_if_null(ops, inode_removexattr); |
| 880 | set_to_cap_if_null(ops, inode_need_killpriv); |
| 881 | set_to_cap_if_null(ops, inode_killpriv); |
| 882 | set_to_cap_if_null(ops, inode_getsecurity); |
| 883 | set_to_cap_if_null(ops, inode_setsecurity); |
| 884 | set_to_cap_if_null(ops, inode_listsecurity); |
| 885 | set_to_cap_if_null(ops, inode_getsecid); |
| 886 | set_to_cap_if_null(ops, file_permission); |
| 887 | set_to_cap_if_null(ops, file_alloc_security); |
| 888 | set_to_cap_if_null(ops, file_free_security); |
| 889 | set_to_cap_if_null(ops, file_ioctl); |
| 890 | set_to_cap_if_null(ops, file_mmap); |
| 891 | set_to_cap_if_null(ops, file_mprotect); |
| 892 | set_to_cap_if_null(ops, file_lock); |
| 893 | set_to_cap_if_null(ops, file_fcntl); |
| 894 | set_to_cap_if_null(ops, file_set_fowner); |
| 895 | set_to_cap_if_null(ops, file_send_sigiotask); |
| 896 | set_to_cap_if_null(ops, file_receive); |
| 897 | set_to_cap_if_null(ops, dentry_open); |
| 898 | set_to_cap_if_null(ops, task_create); |
David Howells | f1752ee | 2008-11-14 10:39:17 +1100 | [diff] [blame] | 899 | set_to_cap_if_null(ops, cred_free); |
David Howells | d84f4f9 | 2008-11-14 10:39:23 +1100 | [diff] [blame] | 900 | set_to_cap_if_null(ops, cred_prepare); |
| 901 | set_to_cap_if_null(ops, cred_commit); |
David Howells | 3a3b7ce | 2008-11-14 10:39:28 +1100 | [diff] [blame] | 902 | set_to_cap_if_null(ops, kernel_act_as); |
| 903 | set_to_cap_if_null(ops, kernel_create_files_as); |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 904 | set_to_cap_if_null(ops, task_setuid); |
David Howells | d84f4f9 | 2008-11-14 10:39:23 +1100 | [diff] [blame] | 905 | set_to_cap_if_null(ops, task_fix_setuid); |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 906 | set_to_cap_if_null(ops, task_setgid); |
| 907 | set_to_cap_if_null(ops, task_setpgid); |
| 908 | set_to_cap_if_null(ops, task_getpgid); |
| 909 | set_to_cap_if_null(ops, task_getsid); |
| 910 | set_to_cap_if_null(ops, task_getsecid); |
| 911 | set_to_cap_if_null(ops, task_setgroups); |
| 912 | set_to_cap_if_null(ops, task_setnice); |
| 913 | set_to_cap_if_null(ops, task_setioprio); |
| 914 | set_to_cap_if_null(ops, task_getioprio); |
| 915 | set_to_cap_if_null(ops, task_setrlimit); |
| 916 | set_to_cap_if_null(ops, task_setscheduler); |
| 917 | set_to_cap_if_null(ops, task_getscheduler); |
| 918 | set_to_cap_if_null(ops, task_movememory); |
| 919 | set_to_cap_if_null(ops, task_wait); |
| 920 | set_to_cap_if_null(ops, task_kill); |
| 921 | set_to_cap_if_null(ops, task_prctl); |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 922 | set_to_cap_if_null(ops, task_to_inode); |
| 923 | set_to_cap_if_null(ops, ipc_permission); |
| 924 | set_to_cap_if_null(ops, ipc_getsecid); |
| 925 | set_to_cap_if_null(ops, msg_msg_alloc_security); |
| 926 | set_to_cap_if_null(ops, msg_msg_free_security); |
| 927 | set_to_cap_if_null(ops, msg_queue_alloc_security); |
| 928 | set_to_cap_if_null(ops, msg_queue_free_security); |
| 929 | set_to_cap_if_null(ops, msg_queue_associate); |
| 930 | set_to_cap_if_null(ops, msg_queue_msgctl); |
| 931 | set_to_cap_if_null(ops, msg_queue_msgsnd); |
| 932 | set_to_cap_if_null(ops, msg_queue_msgrcv); |
| 933 | set_to_cap_if_null(ops, shm_alloc_security); |
| 934 | set_to_cap_if_null(ops, shm_free_security); |
| 935 | set_to_cap_if_null(ops, shm_associate); |
| 936 | set_to_cap_if_null(ops, shm_shmctl); |
| 937 | set_to_cap_if_null(ops, shm_shmat); |
| 938 | set_to_cap_if_null(ops, sem_alloc_security); |
| 939 | set_to_cap_if_null(ops, sem_free_security); |
| 940 | set_to_cap_if_null(ops, sem_associate); |
| 941 | set_to_cap_if_null(ops, sem_semctl); |
| 942 | set_to_cap_if_null(ops, sem_semop); |
| 943 | set_to_cap_if_null(ops, netlink_send); |
| 944 | set_to_cap_if_null(ops, netlink_recv); |
Miklos Szeredi | 5915eb5 | 2008-07-03 20:56:05 +0200 | [diff] [blame] | 945 | set_to_cap_if_null(ops, d_instantiate); |
| 946 | set_to_cap_if_null(ops, getprocattr); |
| 947 | set_to_cap_if_null(ops, setprocattr); |
| 948 | set_to_cap_if_null(ops, secid_to_secctx); |
| 949 | set_to_cap_if_null(ops, secctx_to_secid); |
| 950 | set_to_cap_if_null(ops, release_secctx); |
| 951 | #ifdef CONFIG_SECURITY_NETWORK |
| 952 | set_to_cap_if_null(ops, unix_stream_connect); |
| 953 | set_to_cap_if_null(ops, unix_may_send); |
| 954 | set_to_cap_if_null(ops, socket_create); |
| 955 | set_to_cap_if_null(ops, socket_post_create); |
| 956 | set_to_cap_if_null(ops, socket_bind); |
| 957 | set_to_cap_if_null(ops, socket_connect); |
| 958 | set_to_cap_if_null(ops, socket_listen); |
| 959 | set_to_cap_if_null(ops, socket_accept); |
| 960 | set_to_cap_if_null(ops, socket_post_accept); |
| 961 | set_to_cap_if_null(ops, socket_sendmsg); |
| 962 | set_to_cap_if_null(ops, socket_recvmsg); |
| 963 | set_to_cap_if_null(ops, socket_getsockname); |
| 964 | set_to_cap_if_null(ops, socket_getpeername); |
| 965 | set_to_cap_if_null(ops, socket_setsockopt); |
| 966 | set_to_cap_if_null(ops, socket_getsockopt); |
| 967 | set_to_cap_if_null(ops, socket_shutdown); |
| 968 | set_to_cap_if_null(ops, socket_sock_rcv_skb); |
| 969 | set_to_cap_if_null(ops, socket_getpeersec_stream); |
| 970 | set_to_cap_if_null(ops, socket_getpeersec_dgram); |
| 971 | set_to_cap_if_null(ops, sk_alloc_security); |
| 972 | set_to_cap_if_null(ops, sk_free_security); |
| 973 | set_to_cap_if_null(ops, sk_clone_security); |
| 974 | set_to_cap_if_null(ops, sk_getsecid); |
| 975 | set_to_cap_if_null(ops, sock_graft); |
| 976 | set_to_cap_if_null(ops, inet_conn_request); |
| 977 | set_to_cap_if_null(ops, inet_csk_clone); |
| 978 | set_to_cap_if_null(ops, inet_conn_established); |
| 979 | set_to_cap_if_null(ops, req_classify_flow); |
| 980 | #endif /* CONFIG_SECURITY_NETWORK */ |
| 981 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
| 982 | set_to_cap_if_null(ops, xfrm_policy_alloc_security); |
| 983 | set_to_cap_if_null(ops, xfrm_policy_clone_security); |
| 984 | set_to_cap_if_null(ops, xfrm_policy_free_security); |
| 985 | set_to_cap_if_null(ops, xfrm_policy_delete_security); |
| 986 | set_to_cap_if_null(ops, xfrm_state_alloc_security); |
| 987 | set_to_cap_if_null(ops, xfrm_state_free_security); |
| 988 | set_to_cap_if_null(ops, xfrm_state_delete_security); |
| 989 | set_to_cap_if_null(ops, xfrm_policy_lookup); |
| 990 | set_to_cap_if_null(ops, xfrm_state_pol_flow_match); |
| 991 | set_to_cap_if_null(ops, xfrm_decode_session); |
| 992 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
| 993 | #ifdef CONFIG_KEYS |
| 994 | set_to_cap_if_null(ops, key_alloc); |
| 995 | set_to_cap_if_null(ops, key_free); |
| 996 | set_to_cap_if_null(ops, key_permission); |
| 997 | set_to_cap_if_null(ops, key_getsecurity); |
| 998 | #endif /* CONFIG_KEYS */ |
| 999 | #ifdef CONFIG_AUDIT |
| 1000 | set_to_cap_if_null(ops, audit_rule_init); |
| 1001 | set_to_cap_if_null(ops, audit_rule_known); |
| 1002 | set_to_cap_if_null(ops, audit_rule_match); |
| 1003 | set_to_cap_if_null(ops, audit_rule_free); |
| 1004 | #endif |
| 1005 | } |