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-rw-r--r--security/selinux/hooks.c318
1 files changed, 230 insertions, 88 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 8d8b69c5664e..417f7c994522 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -13,8 +13,8 @@
13 * Eric Paris <eparis@redhat.com> 13 * Eric Paris <eparis@redhat.com>
14 * Copyright (C) 2004-2005 Trusted Computer Solutions, Inc. 14 * Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
15 * <dgoeddel@trustedcs.com> 15 * <dgoeddel@trustedcs.com>
16 * Copyright (C) 2006, 2007 Hewlett-Packard Development Company, L.P. 16 * Copyright (C) 2006, 2007, 2009 Hewlett-Packard Development Company, L.P.
17 * Paul Moore <paul.moore@hp.com> 17 * Paul Moore <paul.moore@hp.com>
18 * Copyright (C) 2007 Hitachi Software Engineering Co., Ltd. 18 * Copyright (C) 2007 Hitachi Software Engineering Co., Ltd.
19 * Yuichi Nakamura <ynakam@hitachisoft.jp> 19 * Yuichi Nakamura <ynakam@hitachisoft.jp>
20 * 20 *
@@ -448,6 +448,10 @@ static int sb_finish_set_opts(struct super_block *sb)
448 sbsec->behavior > ARRAY_SIZE(labeling_behaviors)) 448 sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
449 sbsec->flags &= ~SE_SBLABELSUPP; 449 sbsec->flags &= ~SE_SBLABELSUPP;
450 450
451 /* Special handling for sysfs. Is genfs but also has setxattr handler*/
452 if (strncmp(sb->s_type->name, "sysfs", sizeof("sysfs")) == 0)
453 sbsec->flags |= SE_SBLABELSUPP;
454
451 /* Initialize the root inode. */ 455 /* Initialize the root inode. */
452 rc = inode_doinit_with_dentry(root_inode, root); 456 rc = inode_doinit_with_dentry(root_inode, root);
453 457
@@ -1479,14 +1483,14 @@ static int task_has_capability(struct task_struct *tsk,
1479 const struct cred *cred, 1483 const struct cred *cred,
1480 int cap, int audit) 1484 int cap, int audit)
1481{ 1485{
1482 struct avc_audit_data ad; 1486 struct common_audit_data ad;
1483 struct av_decision avd; 1487 struct av_decision avd;
1484 u16 sclass; 1488 u16 sclass;
1485 u32 sid = cred_sid(cred); 1489 u32 sid = cred_sid(cred);
1486 u32 av = CAP_TO_MASK(cap); 1490 u32 av = CAP_TO_MASK(cap);
1487 int rc; 1491 int rc;
1488 1492
1489 AVC_AUDIT_DATA_INIT(&ad, CAP); 1493 COMMON_AUDIT_DATA_INIT(&ad, CAP);
1490 ad.tsk = tsk; 1494 ad.tsk = tsk;
1491 ad.u.cap = cap; 1495 ad.u.cap = cap;
1492 1496
@@ -1525,12 +1529,14 @@ static int task_has_system(struct task_struct *tsk,
1525static int inode_has_perm(const struct cred *cred, 1529static int inode_has_perm(const struct cred *cred,
1526 struct inode *inode, 1530 struct inode *inode,
1527 u32 perms, 1531 u32 perms,
1528 struct avc_audit_data *adp) 1532 struct common_audit_data *adp)
1529{ 1533{
1530 struct inode_security_struct *isec; 1534 struct inode_security_struct *isec;
1531 struct avc_audit_data ad; 1535 struct common_audit_data ad;
1532 u32 sid; 1536 u32 sid;
1533 1537
1538 validate_creds(cred);
1539
1534 if (unlikely(IS_PRIVATE(inode))) 1540 if (unlikely(IS_PRIVATE(inode)))
1535 return 0; 1541 return 0;
1536 1542
@@ -1539,7 +1545,7 @@ static int inode_has_perm(const struct cred *cred,
1539 1545
1540 if (!adp) { 1546 if (!adp) {
1541 adp = &ad; 1547 adp = &ad;
1542 AVC_AUDIT_DATA_INIT(&ad, FS); 1548 COMMON_AUDIT_DATA_INIT(&ad, FS);
1543 ad.u.fs.inode = inode; 1549 ad.u.fs.inode = inode;
1544 } 1550 }
1545 1551
@@ -1555,9 +1561,9 @@ static inline int dentry_has_perm(const struct cred *cred,
1555 u32 av) 1561 u32 av)
1556{ 1562{
1557 struct inode *inode = dentry->d_inode; 1563 struct inode *inode = dentry->d_inode;
1558 struct avc_audit_data ad; 1564 struct common_audit_data ad;
1559 1565
1560 AVC_AUDIT_DATA_INIT(&ad, FS); 1566 COMMON_AUDIT_DATA_INIT(&ad, FS);
1561 ad.u.fs.path.mnt = mnt; 1567 ad.u.fs.path.mnt = mnt;
1562 ad.u.fs.path.dentry = dentry; 1568 ad.u.fs.path.dentry = dentry;
1563 return inode_has_perm(cred, inode, av, &ad); 1569 return inode_has_perm(cred, inode, av, &ad);
@@ -1577,11 +1583,11 @@ static int file_has_perm(const struct cred *cred,
1577{ 1583{
1578 struct file_security_struct *fsec = file->f_security; 1584 struct file_security_struct *fsec = file->f_security;
1579 struct inode *inode = file->f_path.dentry->d_inode; 1585 struct inode *inode = file->f_path.dentry->d_inode;
1580 struct avc_audit_data ad; 1586 struct common_audit_data ad;
1581 u32 sid = cred_sid(cred); 1587 u32 sid = cred_sid(cred);
1582 int rc; 1588 int rc;
1583 1589
1584 AVC_AUDIT_DATA_INIT(&ad, FS); 1590 COMMON_AUDIT_DATA_INIT(&ad, FS);
1585 ad.u.fs.path = file->f_path; 1591 ad.u.fs.path = file->f_path;
1586 1592
1587 if (sid != fsec->sid) { 1593 if (sid != fsec->sid) {
@@ -1612,7 +1618,7 @@ static int may_create(struct inode *dir,
1612 struct inode_security_struct *dsec; 1618 struct inode_security_struct *dsec;
1613 struct superblock_security_struct *sbsec; 1619 struct superblock_security_struct *sbsec;
1614 u32 sid, newsid; 1620 u32 sid, newsid;
1615 struct avc_audit_data ad; 1621 struct common_audit_data ad;
1616 int rc; 1622 int rc;
1617 1623
1618 dsec = dir->i_security; 1624 dsec = dir->i_security;
@@ -1621,7 +1627,7 @@ static int may_create(struct inode *dir,
1621 sid = tsec->sid; 1627 sid = tsec->sid;
1622 newsid = tsec->create_sid; 1628 newsid = tsec->create_sid;
1623 1629
1624 AVC_AUDIT_DATA_INIT(&ad, FS); 1630 COMMON_AUDIT_DATA_INIT(&ad, FS);
1625 ad.u.fs.path.dentry = dentry; 1631 ad.u.fs.path.dentry = dentry;
1626 1632
1627 rc = avc_has_perm(sid, dsec->sid, SECCLASS_DIR, 1633 rc = avc_has_perm(sid, dsec->sid, SECCLASS_DIR,
@@ -1665,7 +1671,7 @@ static int may_link(struct inode *dir,
1665 1671
1666{ 1672{
1667 struct inode_security_struct *dsec, *isec; 1673 struct inode_security_struct *dsec, *isec;
1668 struct avc_audit_data ad; 1674 struct common_audit_data ad;
1669 u32 sid = current_sid(); 1675 u32 sid = current_sid();
1670 u32 av; 1676 u32 av;
1671 int rc; 1677 int rc;
@@ -1673,7 +1679,7 @@ static int may_link(struct inode *dir,
1673 dsec = dir->i_security; 1679 dsec = dir->i_security;
1674 isec = dentry->d_inode->i_security; 1680 isec = dentry->d_inode->i_security;
1675 1681
1676 AVC_AUDIT_DATA_INIT(&ad, FS); 1682 COMMON_AUDIT_DATA_INIT(&ad, FS);
1677 ad.u.fs.path.dentry = dentry; 1683 ad.u.fs.path.dentry = dentry;
1678 1684
1679 av = DIR__SEARCH; 1685 av = DIR__SEARCH;
@@ -1708,7 +1714,7 @@ static inline int may_rename(struct inode *old_dir,
1708 struct dentry *new_dentry) 1714 struct dentry *new_dentry)
1709{ 1715{
1710 struct inode_security_struct *old_dsec, *new_dsec, *old_isec, *new_isec; 1716 struct inode_security_struct *old_dsec, *new_dsec, *old_isec, *new_isec;
1711 struct avc_audit_data ad; 1717 struct common_audit_data ad;
1712 u32 sid = current_sid(); 1718 u32 sid = current_sid();
1713 u32 av; 1719 u32 av;
1714 int old_is_dir, new_is_dir; 1720 int old_is_dir, new_is_dir;
@@ -1719,7 +1725,7 @@ static inline int may_rename(struct inode *old_dir,
1719 old_is_dir = S_ISDIR(old_dentry->d_inode->i_mode); 1725 old_is_dir = S_ISDIR(old_dentry->d_inode->i_mode);
1720 new_dsec = new_dir->i_security; 1726 new_dsec = new_dir->i_security;
1721 1727
1722 AVC_AUDIT_DATA_INIT(&ad, FS); 1728 COMMON_AUDIT_DATA_INIT(&ad, FS);
1723 1729
1724 ad.u.fs.path.dentry = old_dentry; 1730 ad.u.fs.path.dentry = old_dentry;
1725 rc = avc_has_perm(sid, old_dsec->sid, SECCLASS_DIR, 1731 rc = avc_has_perm(sid, old_dsec->sid, SECCLASS_DIR,
@@ -1761,7 +1767,7 @@ static inline int may_rename(struct inode *old_dir,
1761static int superblock_has_perm(const struct cred *cred, 1767static int superblock_has_perm(const struct cred *cred,
1762 struct super_block *sb, 1768 struct super_block *sb,
1763 u32 perms, 1769 u32 perms,
1764 struct avc_audit_data *ad) 1770 struct common_audit_data *ad)
1765{ 1771{
1766 struct superblock_security_struct *sbsec; 1772 struct superblock_security_struct *sbsec;
1767 u32 sid = cred_sid(cred); 1773 u32 sid = cred_sid(cred);
@@ -1855,12 +1861,12 @@ static inline u32 open_file_to_av(struct file *file)
1855 1861
1856/* Hook functions begin here. */ 1862/* Hook functions begin here. */
1857 1863
1858static int selinux_ptrace_may_access(struct task_struct *child, 1864static int selinux_ptrace_access_check(struct task_struct *child,
1859 unsigned int mode) 1865 unsigned int mode)
1860{ 1866{
1861 int rc; 1867 int rc;
1862 1868
1863 rc = cap_ptrace_may_access(child, mode); 1869 rc = cap_ptrace_access_check(child, mode);
1864 if (rc) 1870 if (rc)
1865 return rc; 1871 return rc;
1866 1872
@@ -2101,7 +2107,7 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm)
2101 const struct task_security_struct *old_tsec; 2107 const struct task_security_struct *old_tsec;
2102 struct task_security_struct *new_tsec; 2108 struct task_security_struct *new_tsec;
2103 struct inode_security_struct *isec; 2109 struct inode_security_struct *isec;
2104 struct avc_audit_data ad; 2110 struct common_audit_data ad;
2105 struct inode *inode = bprm->file->f_path.dentry->d_inode; 2111 struct inode *inode = bprm->file->f_path.dentry->d_inode;
2106 int rc; 2112 int rc;
2107 2113
@@ -2139,7 +2145,7 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm)
2139 return rc; 2145 return rc;
2140 } 2146 }
2141 2147
2142 AVC_AUDIT_DATA_INIT(&ad, FS); 2148 COMMON_AUDIT_DATA_INIT(&ad, FS);
2143 ad.u.fs.path = bprm->file->f_path; 2149 ad.u.fs.path = bprm->file->f_path;
2144 2150
2145 if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID) 2151 if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID)
@@ -2232,7 +2238,7 @@ extern struct dentry *selinux_null;
2232static inline void flush_unauthorized_files(const struct cred *cred, 2238static inline void flush_unauthorized_files(const struct cred *cred,
2233 struct files_struct *files) 2239 struct files_struct *files)
2234{ 2240{
2235 struct avc_audit_data ad; 2241 struct common_audit_data ad;
2236 struct file *file, *devnull = NULL; 2242 struct file *file, *devnull = NULL;
2237 struct tty_struct *tty; 2243 struct tty_struct *tty;
2238 struct fdtable *fdt; 2244 struct fdtable *fdt;
@@ -2266,7 +2272,7 @@ static inline void flush_unauthorized_files(const struct cred *cred,
2266 2272
2267 /* Revalidate access to inherited open files. */ 2273 /* Revalidate access to inherited open files. */
2268 2274
2269 AVC_AUDIT_DATA_INIT(&ad, FS); 2275 COMMON_AUDIT_DATA_INIT(&ad, FS);
2270 2276
2271 spin_lock(&files->file_lock); 2277 spin_lock(&files->file_lock);
2272 for (;;) { 2278 for (;;) {
@@ -2515,7 +2521,7 @@ out:
2515static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data) 2521static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
2516{ 2522{
2517 const struct cred *cred = current_cred(); 2523 const struct cred *cred = current_cred();
2518 struct avc_audit_data ad; 2524 struct common_audit_data ad;
2519 int rc; 2525 int rc;
2520 2526
2521 rc = superblock_doinit(sb, data); 2527 rc = superblock_doinit(sb, data);
@@ -2526,7 +2532,7 @@ static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
2526 if (flags & MS_KERNMOUNT) 2532 if (flags & MS_KERNMOUNT)
2527 return 0; 2533 return 0;
2528 2534
2529 AVC_AUDIT_DATA_INIT(&ad, FS); 2535 COMMON_AUDIT_DATA_INIT(&ad, FS);
2530 ad.u.fs.path.dentry = sb->s_root; 2536 ad.u.fs.path.dentry = sb->s_root;
2531 return superblock_has_perm(cred, sb, FILESYSTEM__MOUNT, &ad); 2537 return superblock_has_perm(cred, sb, FILESYSTEM__MOUNT, &ad);
2532} 2538}
@@ -2534,9 +2540,9 @@ static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
2534static int selinux_sb_statfs(struct dentry *dentry) 2540static int selinux_sb_statfs(struct dentry *dentry)
2535{ 2541{
2536 const struct cred *cred = current_cred(); 2542 const struct cred *cred = current_cred();
2537 struct avc_audit_data ad; 2543 struct common_audit_data ad;
2538 2544
2539 AVC_AUDIT_DATA_INIT(&ad, FS); 2545 COMMON_AUDIT_DATA_INIT(&ad, FS);
2540 ad.u.fs.path.dentry = dentry->d_sb->s_root; 2546 ad.u.fs.path.dentry = dentry->d_sb->s_root;
2541 return superblock_has_perm(cred, dentry->d_sb, FILESYSTEM__GETATTR, &ad); 2547 return superblock_has_perm(cred, dentry->d_sb, FILESYSTEM__GETATTR, &ad);
2542} 2548}
@@ -2711,12 +2717,18 @@ static int selinux_inode_permission(struct inode *inode, int mask)
2711static int selinux_inode_setattr(struct dentry *dentry, struct iattr *iattr) 2717static int selinux_inode_setattr(struct dentry *dentry, struct iattr *iattr)
2712{ 2718{
2713 const struct cred *cred = current_cred(); 2719 const struct cred *cred = current_cred();
2720 unsigned int ia_valid = iattr->ia_valid;
2721
2722 /* ATTR_FORCE is just used for ATTR_KILL_S[UG]ID. */
2723 if (ia_valid & ATTR_FORCE) {
2724 ia_valid &= ~(ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_MODE |
2725 ATTR_FORCE);
2726 if (!ia_valid)
2727 return 0;
2728 }
2714 2729
2715 if (iattr->ia_valid & ATTR_FORCE) 2730 if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID |
2716 return 0; 2731 ATTR_ATIME_SET | ATTR_MTIME_SET | ATTR_TIMES_SET))
2717
2718 if (iattr->ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID |
2719 ATTR_ATIME_SET | ATTR_MTIME_SET))
2720 return dentry_has_perm(cred, NULL, dentry, FILE__SETATTR); 2732 return dentry_has_perm(cred, NULL, dentry, FILE__SETATTR);
2721 2733
2722 return dentry_has_perm(cred, NULL, dentry, FILE__WRITE); 2734 return dentry_has_perm(cred, NULL, dentry, FILE__WRITE);
@@ -2756,7 +2768,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name,
2756 struct inode *inode = dentry->d_inode; 2768 struct inode *inode = dentry->d_inode;
2757 struct inode_security_struct *isec = inode->i_security; 2769 struct inode_security_struct *isec = inode->i_security;
2758 struct superblock_security_struct *sbsec; 2770 struct superblock_security_struct *sbsec;
2759 struct avc_audit_data ad; 2771 struct common_audit_data ad;
2760 u32 newsid, sid = current_sid(); 2772 u32 newsid, sid = current_sid();
2761 int rc = 0; 2773 int rc = 0;
2762 2774
@@ -2770,7 +2782,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name,
2770 if (!is_owner_or_cap(inode)) 2782 if (!is_owner_or_cap(inode))
2771 return -EPERM; 2783 return -EPERM;
2772 2784
2773 AVC_AUDIT_DATA_INIT(&ad, FS); 2785 COMMON_AUDIT_DATA_INIT(&ad, FS);
2774 ad.u.fs.path.dentry = dentry; 2786 ad.u.fs.path.dentry = dentry;
2775 2787
2776 rc = avc_has_perm(sid, isec->sid, isec->sclass, 2788 rc = avc_has_perm(sid, isec->sid, isec->sclass,
@@ -2915,6 +2927,7 @@ static int selinux_inode_setsecurity(struct inode *inode, const char *name,
2915 return rc; 2927 return rc;
2916 2928
2917 isec->sid = newsid; 2929 isec->sid = newsid;
2930 isec->initialized = 1;
2918 return 0; 2931 return 0;
2919} 2932}
2920 2933
@@ -2939,11 +2952,6 @@ static int selinux_revalidate_file_permission(struct file *file, int mask)
2939 const struct cred *cred = current_cred(); 2952 const struct cred *cred = current_cred();
2940 struct inode *inode = file->f_path.dentry->d_inode; 2953 struct inode *inode = file->f_path.dentry->d_inode;
2941 2954
2942 if (!mask) {
2943 /* No permission to check. Existence test. */
2944 return 0;
2945 }
2946
2947 /* file_mask_to_av won't add FILE__WRITE if MAY_APPEND is set */ 2955 /* file_mask_to_av won't add FILE__WRITE if MAY_APPEND is set */
2948 if ((file->f_flags & O_APPEND) && (mask & MAY_WRITE)) 2956 if ((file->f_flags & O_APPEND) && (mask & MAY_WRITE))
2949 mask |= MAY_APPEND; 2957 mask |= MAY_APPEND;
@@ -2954,10 +2962,20 @@ static int selinux_revalidate_file_permission(struct file *file, int mask)
2954 2962
2955static int selinux_file_permission(struct file *file, int mask) 2963static int selinux_file_permission(struct file *file, int mask)
2956{ 2964{
2965 struct inode *inode = file->f_path.dentry->d_inode;
2966 struct file_security_struct *fsec = file->f_security;
2967 struct inode_security_struct *isec = inode->i_security;
2968 u32 sid = current_sid();
2969
2957 if (!mask) 2970 if (!mask)
2958 /* No permission to check. Existence test. */ 2971 /* No permission to check. Existence test. */
2959 return 0; 2972 return 0;
2960 2973
2974 if (sid == fsec->sid && fsec->isid == isec->sid &&
2975 fsec->pseqno == avc_policy_seqno())
2976 /* No change since dentry_open check. */
2977 return 0;
2978
2961 return selinux_revalidate_file_permission(file, mask); 2979 return selinux_revalidate_file_permission(file, mask);
2962} 2980}
2963 2981
@@ -3220,12 +3238,29 @@ static int selinux_task_create(unsigned long clone_flags)
3220} 3238}
3221 3239
3222/* 3240/*
3241 * allocate the SELinux part of blank credentials
3242 */
3243static int selinux_cred_alloc_blank(struct cred *cred, gfp_t gfp)
3244{
3245 struct task_security_struct *tsec;
3246
3247 tsec = kzalloc(sizeof(struct task_security_struct), gfp);
3248 if (!tsec)
3249 return -ENOMEM;
3250
3251 cred->security = tsec;
3252 return 0;
3253}
3254
3255/*
3223 * detach and free the LSM part of a set of credentials 3256 * detach and free the LSM part of a set of credentials
3224 */ 3257 */
3225static void selinux_cred_free(struct cred *cred) 3258static void selinux_cred_free(struct cred *cred)
3226{ 3259{
3227 struct task_security_struct *tsec = cred->security; 3260 struct task_security_struct *tsec = cred->security;
3228 cred->security = NULL; 3261
3262 BUG_ON((unsigned long) cred->security < PAGE_SIZE);
3263 cred->security = (void *) 0x7UL;
3229 kfree(tsec); 3264 kfree(tsec);
3230} 3265}
3231 3266
@@ -3249,6 +3284,17 @@ static int selinux_cred_prepare(struct cred *new, const struct cred *old,
3249} 3284}
3250 3285
3251/* 3286/*
3287 * transfer the SELinux data to a blank set of creds
3288 */
3289static void selinux_cred_transfer(struct cred *new, const struct cred *old)
3290{
3291 const struct task_security_struct *old_tsec = old->security;
3292 struct task_security_struct *tsec = new->security;
3293
3294 *tsec = *old_tsec;
3295}
3296
3297/*
3252 * set the security data for a kernel service 3298 * set the security data for a kernel service
3253 * - all the creation contexts are set to unlabelled 3299 * - all the creation contexts are set to unlabelled
3254 */ 3300 */
@@ -3292,6 +3338,11 @@ static int selinux_kernel_create_files_as(struct cred *new, struct inode *inode)
3292 return 0; 3338 return 0;
3293} 3339}
3294 3340
3341static int selinux_kernel_module_request(void)
3342{
3343 return task_has_system(current, SYSTEM__MODULE_REQUEST);
3344}
3345
3295static int selinux_task_setpgid(struct task_struct *p, pid_t pgid) 3346static int selinux_task_setpgid(struct task_struct *p, pid_t pgid)
3296{ 3347{
3297 return current_has_perm(p, PROCESS__SETPGID); 3348 return current_has_perm(p, PROCESS__SETPGID);
@@ -3409,7 +3460,7 @@ static void selinux_task_to_inode(struct task_struct *p,
3409 3460
3410/* Returns error only if unable to parse addresses */ 3461/* Returns error only if unable to parse addresses */
3411static int selinux_parse_skb_ipv4(struct sk_buff *skb, 3462static int selinux_parse_skb_ipv4(struct sk_buff *skb,
3412 struct avc_audit_data *ad, u8 *proto) 3463 struct common_audit_data *ad, u8 *proto)
3413{ 3464{
3414 int offset, ihlen, ret = -EINVAL; 3465 int offset, ihlen, ret = -EINVAL;
3415 struct iphdr _iph, *ih; 3466 struct iphdr _iph, *ih;
@@ -3490,7 +3541,7 @@ out:
3490 3541
3491/* Returns error only if unable to parse addresses */ 3542/* Returns error only if unable to parse addresses */
3492static int selinux_parse_skb_ipv6(struct sk_buff *skb, 3543static int selinux_parse_skb_ipv6(struct sk_buff *skb,
3493 struct avc_audit_data *ad, u8 *proto) 3544 struct common_audit_data *ad, u8 *proto)
3494{ 3545{
3495 u8 nexthdr; 3546 u8 nexthdr;
3496 int ret = -EINVAL, offset; 3547 int ret = -EINVAL, offset;
@@ -3561,7 +3612,7 @@ out:
3561 3612
3562#endif /* IPV6 */ 3613#endif /* IPV6 */
3563 3614
3564static int selinux_parse_skb(struct sk_buff *skb, struct avc_audit_data *ad, 3615static int selinux_parse_skb(struct sk_buff *skb, struct common_audit_data *ad,
3565 char **_addrp, int src, u8 *proto) 3616 char **_addrp, int src, u8 *proto)
3566{ 3617{
3567 char *addrp; 3618 char *addrp;
@@ -3643,7 +3694,7 @@ static int socket_has_perm(struct task_struct *task, struct socket *sock,
3643 u32 perms) 3694 u32 perms)
3644{ 3695{
3645 struct inode_security_struct *isec; 3696 struct inode_security_struct *isec;
3646 struct avc_audit_data ad; 3697 struct common_audit_data ad;
3647 u32 sid; 3698 u32 sid;
3648 int err = 0; 3699 int err = 0;
3649 3700
@@ -3653,7 +3704,7 @@ static int socket_has_perm(struct task_struct *task, struct socket *sock,
3653 goto out; 3704 goto out;
3654 sid = task_sid(task); 3705 sid = task_sid(task);
3655 3706
3656 AVC_AUDIT_DATA_INIT(&ad, NET); 3707 COMMON_AUDIT_DATA_INIT(&ad, NET);
3657 ad.u.net.sk = sock->sk; 3708 ad.u.net.sk = sock->sk;
3658 err = avc_has_perm(sid, isec->sid, isec->sclass, perms, &ad); 3709 err = avc_has_perm(sid, isec->sid, isec->sclass, perms, &ad);
3659 3710
@@ -3740,7 +3791,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
3740 if (family == PF_INET || family == PF_INET6) { 3791 if (family == PF_INET || family == PF_INET6) {
3741 char *addrp; 3792 char *addrp;
3742 struct inode_security_struct *isec; 3793 struct inode_security_struct *isec;
3743 struct avc_audit_data ad; 3794 struct common_audit_data ad;
3744 struct sockaddr_in *addr4 = NULL; 3795 struct sockaddr_in *addr4 = NULL;
3745 struct sockaddr_in6 *addr6 = NULL; 3796 struct sockaddr_in6 *addr6 = NULL;
3746 unsigned short snum; 3797 unsigned short snum;
@@ -3769,7 +3820,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
3769 snum, &sid); 3820 snum, &sid);
3770 if (err) 3821 if (err)
3771 goto out; 3822 goto out;
3772 AVC_AUDIT_DATA_INIT(&ad, NET); 3823 COMMON_AUDIT_DATA_INIT(&ad, NET);
3773 ad.u.net.sport = htons(snum); 3824 ad.u.net.sport = htons(snum);
3774 ad.u.net.family = family; 3825 ad.u.net.family = family;
3775 err = avc_has_perm(isec->sid, sid, 3826 err = avc_has_perm(isec->sid, sid,
@@ -3802,7 +3853,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
3802 if (err) 3853 if (err)
3803 goto out; 3854 goto out;
3804 3855
3805 AVC_AUDIT_DATA_INIT(&ad, NET); 3856 COMMON_AUDIT_DATA_INIT(&ad, NET);
3806 ad.u.net.sport = htons(snum); 3857 ad.u.net.sport = htons(snum);
3807 ad.u.net.family = family; 3858 ad.u.net.family = family;
3808 3859
@@ -3836,7 +3887,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address,
3836 isec = SOCK_INODE(sock)->i_security; 3887 isec = SOCK_INODE(sock)->i_security;
3837 if (isec->sclass == SECCLASS_TCP_SOCKET || 3888 if (isec->sclass == SECCLASS_TCP_SOCKET ||
3838 isec->sclass == SECCLASS_DCCP_SOCKET) { 3889 isec->sclass == SECCLASS_DCCP_SOCKET) {
3839 struct avc_audit_data ad; 3890 struct common_audit_data ad;
3840 struct sockaddr_in *addr4 = NULL; 3891 struct sockaddr_in *addr4 = NULL;
3841 struct sockaddr_in6 *addr6 = NULL; 3892 struct sockaddr_in6 *addr6 = NULL;
3842 unsigned short snum; 3893 unsigned short snum;
@@ -3861,7 +3912,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address,
3861 perm = (isec->sclass == SECCLASS_TCP_SOCKET) ? 3912 perm = (isec->sclass == SECCLASS_TCP_SOCKET) ?
3862 TCP_SOCKET__NAME_CONNECT : DCCP_SOCKET__NAME_CONNECT; 3913 TCP_SOCKET__NAME_CONNECT : DCCP_SOCKET__NAME_CONNECT;
3863 3914
3864 AVC_AUDIT_DATA_INIT(&ad, NET); 3915 COMMON_AUDIT_DATA_INIT(&ad, NET);
3865 ad.u.net.dport = htons(snum); 3916 ad.u.net.dport = htons(snum);
3866 ad.u.net.family = sk->sk_family; 3917 ad.u.net.family = sk->sk_family;
3867 err = avc_has_perm(isec->sid, sid, isec->sclass, perm, &ad); 3918 err = avc_has_perm(isec->sid, sid, isec->sclass, perm, &ad);
@@ -3951,13 +4002,13 @@ static int selinux_socket_unix_stream_connect(struct socket *sock,
3951 struct sk_security_struct *ssec; 4002 struct sk_security_struct *ssec;
3952 struct inode_security_struct *isec; 4003 struct inode_security_struct *isec;
3953 struct inode_security_struct *other_isec; 4004 struct inode_security_struct *other_isec;
3954 struct avc_audit_data ad; 4005 struct common_audit_data ad;
3955 int err; 4006 int err;
3956 4007
3957 isec = SOCK_INODE(sock)->i_security; 4008 isec = SOCK_INODE(sock)->i_security;
3958 other_isec = SOCK_INODE(other)->i_security; 4009 other_isec = SOCK_INODE(other)->i_security;
3959 4010
3960 AVC_AUDIT_DATA_INIT(&ad, NET); 4011 COMMON_AUDIT_DATA_INIT(&ad, NET);
3961 ad.u.net.sk = other->sk; 4012 ad.u.net.sk = other->sk;
3962 4013
3963 err = avc_has_perm(isec->sid, other_isec->sid, 4014 err = avc_has_perm(isec->sid, other_isec->sid,
@@ -3983,13 +4034,13 @@ static int selinux_socket_unix_may_send(struct socket *sock,
3983{ 4034{
3984 struct inode_security_struct *isec; 4035 struct inode_security_struct *isec;
3985 struct inode_security_struct *other_isec; 4036 struct inode_security_struct *other_isec;
3986 struct avc_audit_data ad; 4037 struct common_audit_data ad;
3987 int err; 4038 int err;
3988 4039
3989 isec = SOCK_INODE(sock)->i_security; 4040 isec = SOCK_INODE(sock)->i_security;
3990 other_isec = SOCK_INODE(other)->i_security; 4041 other_isec = SOCK_INODE(other)->i_security;
3991 4042
3992 AVC_AUDIT_DATA_INIT(&ad, NET); 4043 COMMON_AUDIT_DATA_INIT(&ad, NET);
3993 ad.u.net.sk = other->sk; 4044 ad.u.net.sk = other->sk;
3994 4045
3995 err = avc_has_perm(isec->sid, other_isec->sid, 4046 err = avc_has_perm(isec->sid, other_isec->sid,
@@ -4002,7 +4053,7 @@ static int selinux_socket_unix_may_send(struct socket *sock,
4002 4053
4003static int selinux_inet_sys_rcv_skb(int ifindex, char *addrp, u16 family, 4054static int selinux_inet_sys_rcv_skb(int ifindex, char *addrp, u16 family,
4004 u32 peer_sid, 4055 u32 peer_sid,
4005 struct avc_audit_data *ad) 4056 struct common_audit_data *ad)
4006{ 4057{
4007 int err; 4058 int err;
4008 u32 if_sid; 4059 u32 if_sid;
@@ -4030,10 +4081,10 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
4030 struct sk_security_struct *sksec = sk->sk_security; 4081 struct sk_security_struct *sksec = sk->sk_security;
4031 u32 peer_sid; 4082 u32 peer_sid;
4032 u32 sk_sid = sksec->sid; 4083 u32 sk_sid = sksec->sid;
4033 struct avc_audit_data ad; 4084 struct common_audit_data ad;
4034 char *addrp; 4085 char *addrp;
4035 4086
4036 AVC_AUDIT_DATA_INIT(&ad, NET); 4087 COMMON_AUDIT_DATA_INIT(&ad, NET);
4037 ad.u.net.netif = skb->iif; 4088 ad.u.net.netif = skb->iif;
4038 ad.u.net.family = family; 4089 ad.u.net.family = family;
4039 err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL); 4090 err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL);
@@ -4071,7 +4122,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
4071 struct sk_security_struct *sksec = sk->sk_security; 4122 struct sk_security_struct *sksec = sk->sk_security;
4072 u16 family = sk->sk_family; 4123 u16 family = sk->sk_family;
4073 u32 sk_sid = sksec->sid; 4124 u32 sk_sid = sksec->sid;
4074 struct avc_audit_data ad; 4125 struct common_audit_data ad;
4075 char *addrp; 4126 char *addrp;
4076 u8 secmark_active; 4127 u8 secmark_active;
4077 u8 peerlbl_active; 4128 u8 peerlbl_active;
@@ -4095,7 +4146,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
4095 if (!secmark_active && !peerlbl_active) 4146 if (!secmark_active && !peerlbl_active)
4096 return 0; 4147 return 0;
4097 4148
4098 AVC_AUDIT_DATA_INIT(&ad, NET); 4149 COMMON_AUDIT_DATA_INIT(&ad, NET);
4099 ad.u.net.netif = skb->iif; 4150 ad.u.net.netif = skb->iif;
4100 ad.u.net.family = family; 4151 ad.u.net.family = family;
4101 err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL); 4152 err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL);
@@ -4309,6 +4360,59 @@ static void selinux_req_classify_flow(const struct request_sock *req,
4309 fl->secid = req->secid; 4360 fl->secid = req->secid;
4310} 4361}
4311 4362
4363static int selinux_tun_dev_create(void)
4364{
4365 u32 sid = current_sid();
4366
4367 /* we aren't taking into account the "sockcreate" SID since the socket
4368 * that is being created here is not a socket in the traditional sense,
4369 * instead it is a private sock, accessible only to the kernel, and
4370 * representing a wide range of network traffic spanning multiple
4371 * connections unlike traditional sockets - check the TUN driver to
4372 * get a better understanding of why this socket is special */
4373
4374 return avc_has_perm(sid, sid, SECCLASS_TUN_SOCKET, TUN_SOCKET__CREATE,
4375 NULL);
4376}
4377
4378static void selinux_tun_dev_post_create(struct sock *sk)
4379{
4380 struct sk_security_struct *sksec = sk->sk_security;
4381
4382 /* we don't currently perform any NetLabel based labeling here and it
4383 * isn't clear that we would want to do so anyway; while we could apply
4384 * labeling without the support of the TUN user the resulting labeled
4385 * traffic from the other end of the connection would almost certainly
4386 * cause confusion to the TUN user that had no idea network labeling
4387 * protocols were being used */
4388
4389 /* see the comments in selinux_tun_dev_create() about why we don't use
4390 * the sockcreate SID here */
4391
4392 sksec->sid = current_sid();
4393 sksec->sclass = SECCLASS_TUN_SOCKET;
4394}
4395
4396static int selinux_tun_dev_attach(struct sock *sk)
4397{
4398 struct sk_security_struct *sksec = sk->sk_security;
4399 u32 sid = current_sid();
4400 int err;
4401
4402 err = avc_has_perm(sid, sksec->sid, SECCLASS_TUN_SOCKET,
4403 TUN_SOCKET__RELABELFROM, NULL);
4404 if (err)
4405 return err;
4406 err = avc_has_perm(sid, sid, SECCLASS_TUN_SOCKET,
4407 TUN_SOCKET__RELABELTO, NULL);
4408 if (err)
4409 return err;
4410
4411 sksec->sid = sid;
4412
4413 return 0;
4414}
4415
4312static int selinux_nlmsg_perm(struct sock *sk, struct sk_buff *skb) 4416static int selinux_nlmsg_perm(struct sock *sk, struct sk_buff *skb)
4313{ 4417{
4314 int err = 0; 4418 int err = 0;
@@ -4353,7 +4457,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex,
4353 int err; 4457 int err;
4354 char *addrp; 4458 char *addrp;
4355 u32 peer_sid; 4459 u32 peer_sid;
4356 struct avc_audit_data ad; 4460 struct common_audit_data ad;
4357 u8 secmark_active; 4461 u8 secmark_active;
4358 u8 netlbl_active; 4462 u8 netlbl_active;
4359 u8 peerlbl_active; 4463 u8 peerlbl_active;
@@ -4370,7 +4474,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex,
4370 if (selinux_skb_peerlbl_sid(skb, family, &peer_sid) != 0) 4474 if (selinux_skb_peerlbl_sid(skb, family, &peer_sid) != 0)
4371 return NF_DROP; 4475 return NF_DROP;
4372 4476
4373 AVC_AUDIT_DATA_INIT(&ad, NET); 4477 COMMON_AUDIT_DATA_INIT(&ad, NET);
4374 ad.u.net.netif = ifindex; 4478 ad.u.net.netif = ifindex;
4375 ad.u.net.family = family; 4479 ad.u.net.family = family;
4376 if (selinux_parse_skb(skb, &ad, &addrp, 1, NULL) != 0) 4480 if (selinux_parse_skb(skb, &ad, &addrp, 1, NULL) != 0)
@@ -4458,7 +4562,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
4458{ 4562{
4459 struct sock *sk = skb->sk; 4563 struct sock *sk = skb->sk;
4460 struct sk_security_struct *sksec; 4564 struct sk_security_struct *sksec;
4461 struct avc_audit_data ad; 4565 struct common_audit_data ad;
4462 char *addrp; 4566 char *addrp;
4463 u8 proto; 4567 u8 proto;
4464 4568
@@ -4466,7 +4570,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
4466 return NF_ACCEPT; 4570 return NF_ACCEPT;
4467 sksec = sk->sk_security; 4571 sksec = sk->sk_security;
4468 4572
4469 AVC_AUDIT_DATA_INIT(&ad, NET); 4573 COMMON_AUDIT_DATA_INIT(&ad, NET);
4470 ad.u.net.netif = ifindex; 4574 ad.u.net.netif = ifindex;
4471 ad.u.net.family = family; 4575 ad.u.net.family = family;
4472 if (selinux_parse_skb(skb, &ad, &addrp, 0, &proto)) 4576 if (selinux_parse_skb(skb, &ad, &addrp, 0, &proto))
@@ -4490,7 +4594,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
4490 u32 secmark_perm; 4594 u32 secmark_perm;
4491 u32 peer_sid; 4595 u32 peer_sid;
4492 struct sock *sk; 4596 struct sock *sk;
4493 struct avc_audit_data ad; 4597 struct common_audit_data ad;
4494 char *addrp; 4598 char *addrp;
4495 u8 secmark_active; 4599 u8 secmark_active;
4496 u8 peerlbl_active; 4600 u8 peerlbl_active;
@@ -4549,7 +4653,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
4549 secmark_perm = PACKET__SEND; 4653 secmark_perm = PACKET__SEND;
4550 } 4654 }
4551 4655
4552 AVC_AUDIT_DATA_INIT(&ad, NET); 4656 COMMON_AUDIT_DATA_INIT(&ad, NET);
4553 ad.u.net.netif = ifindex; 4657 ad.u.net.netif = ifindex;
4554 ad.u.net.family = family; 4658 ad.u.net.family = family;
4555 if (selinux_parse_skb(skb, &ad, &addrp, 0, NULL)) 4659 if (selinux_parse_skb(skb, &ad, &addrp, 0, NULL))
@@ -4619,13 +4723,13 @@ static int selinux_netlink_send(struct sock *sk, struct sk_buff *skb)
4619static int selinux_netlink_recv(struct sk_buff *skb, int capability) 4723static int selinux_netlink_recv(struct sk_buff *skb, int capability)
4620{ 4724{
4621 int err; 4725 int err;
4622 struct avc_audit_data ad; 4726 struct common_audit_data ad;
4623 4727
4624 err = cap_netlink_recv(skb, capability); 4728 err = cap_netlink_recv(skb, capability);
4625 if (err) 4729 if (err)
4626 return err; 4730 return err;
4627 4731
4628 AVC_AUDIT_DATA_INIT(&ad, CAP); 4732 COMMON_AUDIT_DATA_INIT(&ad, CAP);
4629 ad.u.cap = capability; 4733 ad.u.cap = capability;
4630 4734
4631 return avc_has_perm(NETLINK_CB(skb).sid, NETLINK_CB(skb).sid, 4735 return avc_has_perm(NETLINK_CB(skb).sid, NETLINK_CB(skb).sid,
@@ -4684,12 +4788,12 @@ static int ipc_has_perm(struct kern_ipc_perm *ipc_perms,
4684 u32 perms) 4788 u32 perms)
4685{ 4789{
4686 struct ipc_security_struct *isec; 4790 struct ipc_security_struct *isec;
4687 struct avc_audit_data ad; 4791 struct common_audit_data ad;
4688 u32 sid = current_sid(); 4792 u32 sid = current_sid();
4689 4793
4690 isec = ipc_perms->security; 4794 isec = ipc_perms->security;
4691 4795
4692 AVC_AUDIT_DATA_INIT(&ad, IPC); 4796 COMMON_AUDIT_DATA_INIT(&ad, IPC);
4693 ad.u.ipc_id = ipc_perms->key; 4797 ad.u.ipc_id = ipc_perms->key;
4694 4798
4695 return avc_has_perm(sid, isec->sid, isec->sclass, perms, &ad); 4799 return avc_has_perm(sid, isec->sid, isec->sclass, perms, &ad);
@@ -4709,7 +4813,7 @@ static void selinux_msg_msg_free_security(struct msg_msg *msg)
4709static int selinux_msg_queue_alloc_security(struct msg_queue *msq) 4813static int selinux_msg_queue_alloc_security(struct msg_queue *msq)
4710{ 4814{
4711 struct ipc_security_struct *isec; 4815 struct ipc_security_struct *isec;
4712 struct avc_audit_data ad; 4816 struct common_audit_data ad;
4713 u32 sid = current_sid(); 4817 u32 sid = current_sid();
4714 int rc; 4818 int rc;
4715 4819
@@ -4719,7 +4823,7 @@ static int selinux_msg_queue_alloc_security(struct msg_queue *msq)
4719 4823
4720 isec = msq->q_perm.security; 4824 isec = msq->q_perm.security;
4721 4825
4722 AVC_AUDIT_DATA_INIT(&ad, IPC); 4826 COMMON_AUDIT_DATA_INIT(&ad, IPC);
4723 ad.u.ipc_id = msq->q_perm.key; 4827 ad.u.ipc_id = msq->q_perm.key;
4724 4828
4725 rc = avc_has_perm(sid, isec->sid, SECCLASS_MSGQ, 4829 rc = avc_has_perm(sid, isec->sid, SECCLASS_MSGQ,
@@ -4739,12 +4843,12 @@ static void selinux_msg_queue_free_security(struct msg_queue *msq)
4739static int selinux_msg_queue_associate(struct msg_queue *msq, int msqflg) 4843static int selinux_msg_queue_associate(struct msg_queue *msq, int msqflg)
4740{ 4844{
4741 struct ipc_security_struct *isec; 4845 struct ipc_security_struct *isec;
4742 struct avc_audit_data ad; 4846 struct common_audit_data ad;
4743 u32 sid = current_sid(); 4847 u32 sid = current_sid();
4744 4848
4745 isec = msq->q_perm.security; 4849 isec = msq->q_perm.security;
4746 4850
4747 AVC_AUDIT_DATA_INIT(&ad, IPC); 4851 COMMON_AUDIT_DATA_INIT(&ad, IPC);
4748 ad.u.ipc_id = msq->q_perm.key; 4852 ad.u.ipc_id = msq->q_perm.key;
4749 4853
4750 return avc_has_perm(sid, isec->sid, SECCLASS_MSGQ, 4854 return avc_has_perm(sid, isec->sid, SECCLASS_MSGQ,
@@ -4783,7 +4887,7 @@ static int selinux_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
4783{ 4887{
4784 struct ipc_security_struct *isec; 4888 struct ipc_security_struct *isec;
4785 struct msg_security_struct *msec; 4889 struct msg_security_struct *msec;
4786 struct avc_audit_data ad; 4890 struct common_audit_data ad;
4787 u32 sid = current_sid(); 4891 u32 sid = current_sid();
4788 int rc; 4892 int rc;
4789 4893
@@ -4804,7 +4908,7 @@ static int selinux_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
4804 return rc; 4908 return rc;
4805 } 4909 }
4806 4910
4807 AVC_AUDIT_DATA_INIT(&ad, IPC); 4911 COMMON_AUDIT_DATA_INIT(&ad, IPC);
4808 ad.u.ipc_id = msq->q_perm.key; 4912 ad.u.ipc_id = msq->q_perm.key;
4809 4913
4810 /* Can this process write to the queue? */ 4914 /* Can this process write to the queue? */
@@ -4828,14 +4932,14 @@ static int selinux_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
4828{ 4932{
4829 struct ipc_security_struct *isec; 4933 struct ipc_security_struct *isec;
4830 struct msg_security_struct *msec; 4934 struct msg_security_struct *msec;
4831 struct avc_audit_data ad; 4935 struct common_audit_data ad;
4832 u32 sid = task_sid(target); 4936 u32 sid = task_sid(target);
4833 int rc; 4937 int rc;
4834 4938
4835 isec = msq->q_perm.security; 4939 isec = msq->q_perm.security;
4836 msec = msg->security; 4940 msec = msg->security;
4837 4941
4838 AVC_AUDIT_DATA_INIT(&ad, IPC); 4942 COMMON_AUDIT_DATA_INIT(&ad, IPC);
4839 ad.u.ipc_id = msq->q_perm.key; 4943 ad.u.ipc_id = msq->q_perm.key;
4840 4944
4841 rc = avc_has_perm(sid, isec->sid, 4945 rc = avc_has_perm(sid, isec->sid,
@@ -4850,7 +4954,7 @@ static int selinux_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
4850static int selinux_shm_alloc_security(struct shmid_kernel *shp) 4954static int selinux_shm_alloc_security(struct shmid_kernel *shp)
4851{ 4955{
4852 struct ipc_security_struct *isec; 4956 struct ipc_security_struct *isec;
4853 struct avc_audit_data ad; 4957 struct common_audit_data ad;
4854 u32 sid = current_sid(); 4958 u32 sid = current_sid();
4855 int rc; 4959 int rc;
4856 4960
@@ -4860,7 +4964,7 @@ static int selinux_shm_alloc_security(struct shmid_kernel *shp)
4860 4964
4861 isec = shp->shm_perm.security; 4965 isec = shp->shm_perm.security;
4862 4966
4863 AVC_AUDIT_DATA_INIT(&ad, IPC); 4967 COMMON_AUDIT_DATA_INIT(&ad, IPC);
4864 ad.u.ipc_id = shp->shm_perm.key; 4968 ad.u.ipc_id = shp->shm_perm.key;
4865 4969
4866 rc = avc_has_perm(sid, isec->sid, SECCLASS_SHM, 4970 rc = avc_has_perm(sid, isec->sid, SECCLASS_SHM,
@@ -4880,12 +4984,12 @@ static void selinux_shm_free_security(struct shmid_kernel *shp)
4880static int selinux_shm_associate(struct shmid_kernel *shp, int shmflg) 4984static int selinux_shm_associate(struct shmid_kernel *shp, int shmflg)
4881{ 4985{
4882 struct ipc_security_struct *isec; 4986 struct ipc_security_struct *isec;
4883 struct avc_audit_data ad; 4987 struct common_audit_data ad;
4884 u32 sid = current_sid(); 4988 u32 sid = current_sid();
4885 4989
4886 isec = shp->shm_perm.security; 4990 isec = shp->shm_perm.security;
4887 4991
4888 AVC_AUDIT_DATA_INIT(&ad, IPC); 4992 COMMON_AUDIT_DATA_INIT(&ad, IPC);
4889 ad.u.ipc_id = shp->shm_perm.key; 4993 ad.u.ipc_id = shp->shm_perm.key;
4890 4994
4891 return avc_has_perm(sid, isec->sid, SECCLASS_SHM, 4995 return avc_has_perm(sid, isec->sid, SECCLASS_SHM,
@@ -4942,7 +5046,7 @@ static int selinux_shm_shmat(struct shmid_kernel *shp,
4942static int selinux_sem_alloc_security(struct sem_array *sma) 5046static int selinux_sem_alloc_security(struct sem_array *sma)
4943{ 5047{
4944 struct ipc_security_struct *isec; 5048 struct ipc_security_struct *isec;
4945 struct avc_audit_data ad; 5049 struct common_audit_data ad;
4946 u32 sid = current_sid(); 5050 u32 sid = current_sid();
4947 int rc; 5051 int rc;
4948 5052
@@ -4952,7 +5056,7 @@ static int selinux_sem_alloc_security(struct sem_array *sma)
4952 5056
4953 isec = sma->sem_perm.security; 5057 isec = sma->sem_perm.security;
4954 5058
4955 AVC_AUDIT_DATA_INIT(&ad, IPC); 5059 COMMON_AUDIT_DATA_INIT(&ad, IPC);
4956 ad.u.ipc_id = sma->sem_perm.key; 5060 ad.u.ipc_id = sma->sem_perm.key;
4957 5061
4958 rc = avc_has_perm(sid, isec->sid, SECCLASS_SEM, 5062 rc = avc_has_perm(sid, isec->sid, SECCLASS_SEM,
@@ -4972,12 +5076,12 @@ static void selinux_sem_free_security(struct sem_array *sma)
4972static int selinux_sem_associate(struct sem_array *sma, int semflg) 5076static int selinux_sem_associate(struct sem_array *sma, int semflg)
4973{ 5077{
4974 struct ipc_security_struct *isec; 5078 struct ipc_security_struct *isec;
4975 struct avc_audit_data ad; 5079 struct common_audit_data ad;
4976 u32 sid = current_sid(); 5080 u32 sid = current_sid();
4977 5081
4978 isec = sma->sem_perm.security; 5082 isec = sma->sem_perm.security;
4979 5083
4980 AVC_AUDIT_DATA_INIT(&ad, IPC); 5084 COMMON_AUDIT_DATA_INIT(&ad, IPC);
4981 ad.u.ipc_id = sma->sem_perm.key; 5085 ad.u.ipc_id = sma->sem_perm.key;
4982 5086
4983 return avc_has_perm(sid, isec->sid, SECCLASS_SEM, 5087 return avc_has_perm(sid, isec->sid, SECCLASS_SEM,
@@ -5195,7 +5299,7 @@ static int selinux_setprocattr(struct task_struct *p,
5195 5299
5196 /* Only allow single threaded processes to change context */ 5300 /* Only allow single threaded processes to change context */
5197 error = -EPERM; 5301 error = -EPERM;
5198 if (!is_single_threaded(p)) { 5302 if (!current_is_single_threaded()) {
5199 error = security_bounded_transition(tsec->sid, sid); 5303 error = security_bounded_transition(tsec->sid, sid);
5200 if (error) 5304 if (error)
5201 goto abort_change; 5305 goto abort_change;
@@ -5252,6 +5356,32 @@ static void selinux_release_secctx(char *secdata, u32 seclen)
5252 kfree(secdata); 5356 kfree(secdata);
5253} 5357}
5254 5358
5359/*
5360 * called with inode->i_mutex locked
5361 */
5362static int selinux_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
5363{
5364 return selinux_inode_setsecurity(inode, XATTR_SELINUX_SUFFIX, ctx, ctxlen, 0);
5365}
5366
5367/*
5368 * called with inode->i_mutex locked
5369 */
5370static int selinux_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
5371{
5372 return __vfs_setxattr_noperm(dentry, XATTR_NAME_SELINUX, ctx, ctxlen, 0);
5373}
5374
5375static int selinux_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
5376{
5377 int len = 0;
5378 len = selinux_inode_getsecurity(inode, XATTR_SELINUX_SUFFIX,
5379 ctx, true);
5380 if (len < 0)
5381 return len;
5382 *ctxlen = len;
5383 return 0;
5384}
5255#ifdef CONFIG_KEYS 5385#ifdef CONFIG_KEYS
5256 5386
5257static int selinux_key_alloc(struct key *k, const struct cred *cred, 5387static int selinux_key_alloc(struct key *k, const struct cred *cred,
@@ -5323,7 +5453,7 @@ static int selinux_key_getsecurity(struct key *key, char **_buffer)
5323static struct security_operations selinux_ops = { 5453static struct security_operations selinux_ops = {
5324 .name = "selinux", 5454 .name = "selinux",
5325 5455
5326 .ptrace_may_access = selinux_ptrace_may_access, 5456 .ptrace_access_check = selinux_ptrace_access_check,
5327 .ptrace_traceme = selinux_ptrace_traceme, 5457 .ptrace_traceme = selinux_ptrace_traceme,
5328 .capget = selinux_capget, 5458 .capget = selinux_capget,
5329 .capset = selinux_capset, 5459 .capset = selinux_capset,
@@ -5396,10 +5526,13 @@ static struct security_operations selinux_ops = {
5396 .dentry_open = selinux_dentry_open, 5526 .dentry_open = selinux_dentry_open,
5397 5527
5398 .task_create = selinux_task_create, 5528 .task_create = selinux_task_create,
5529 .cred_alloc_blank = selinux_cred_alloc_blank,
5399 .cred_free = selinux_cred_free, 5530 .cred_free = selinux_cred_free,
5400 .cred_prepare = selinux_cred_prepare, 5531 .cred_prepare = selinux_cred_prepare,
5532 .cred_transfer = selinux_cred_transfer,
5401 .kernel_act_as = selinux_kernel_act_as, 5533 .kernel_act_as = selinux_kernel_act_as,
5402 .kernel_create_files_as = selinux_kernel_create_files_as, 5534 .kernel_create_files_as = selinux_kernel_create_files_as,
5535 .kernel_module_request = selinux_kernel_module_request,
5403 .task_setpgid = selinux_task_setpgid, 5536 .task_setpgid = selinux_task_setpgid,
5404 .task_getpgid = selinux_task_getpgid, 5537 .task_getpgid = selinux_task_getpgid,
5405 .task_getsid = selinux_task_getsid, 5538 .task_getsid = selinux_task_getsid,
@@ -5448,6 +5581,9 @@ static struct security_operations selinux_ops = {
5448 .secid_to_secctx = selinux_secid_to_secctx, 5581 .secid_to_secctx = selinux_secid_to_secctx,
5449 .secctx_to_secid = selinux_secctx_to_secid, 5582 .secctx_to_secid = selinux_secctx_to_secid,
5450 .release_secctx = selinux_release_secctx, 5583 .release_secctx = selinux_release_secctx,
5584 .inode_notifysecctx = selinux_inode_notifysecctx,
5585 .inode_setsecctx = selinux_inode_setsecctx,
5586 .inode_getsecctx = selinux_inode_getsecctx,
5451 5587
5452 .unix_stream_connect = selinux_socket_unix_stream_connect, 5588 .unix_stream_connect = selinux_socket_unix_stream_connect,
5453 .unix_may_send = selinux_socket_unix_may_send, 5589 .unix_may_send = selinux_socket_unix_may_send,
@@ -5477,6 +5613,9 @@ static struct security_operations selinux_ops = {
5477 .inet_csk_clone = selinux_inet_csk_clone, 5613 .inet_csk_clone = selinux_inet_csk_clone,
5478 .inet_conn_established = selinux_inet_conn_established, 5614 .inet_conn_established = selinux_inet_conn_established,
5479 .req_classify_flow = selinux_req_classify_flow, 5615 .req_classify_flow = selinux_req_classify_flow,
5616 .tun_dev_create = selinux_tun_dev_create,
5617 .tun_dev_post_create = selinux_tun_dev_post_create,
5618 .tun_dev_attach = selinux_tun_dev_attach,
5480 5619
5481#ifdef CONFIG_SECURITY_NETWORK_XFRM 5620#ifdef CONFIG_SECURITY_NETWORK_XFRM
5482 .xfrm_policy_alloc_security = selinux_xfrm_policy_alloc, 5621 .xfrm_policy_alloc_security = selinux_xfrm_policy_alloc,
@@ -5691,6 +5830,9 @@ int selinux_disable(void)
5691 selinux_disabled = 1; 5830 selinux_disabled = 1;
5692 selinux_enabled = 0; 5831 selinux_enabled = 0;
5693 5832
5833 /* Try to destroy the avc node cache */
5834 avc_disable();
5835
5694 /* Reset security_ops to the secondary module, dummy or capability. */ 5836 /* Reset security_ops to the secondary module, dummy or capability. */
5695 security_ops = secondary_ops; 5837 security_ops = secondary_ops;
5696 5838
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-25 15:24:55 -0500