fs/namei.c | 9 +++++---- include/linux/security.h | 11 +++++++---- security/dummy.c | 2 +- security/selinux/hooks.c | 7 ++++++- 4 files changed, 19 insertions(+), 10 deletions(-) Index: linux-2.6/fs/namei.c =================================================================== RCS file: /nfshome/pal/CVS/linux-2.6/fs/namei.c,v retrieving revision 1.13 diff -u -r1.13 namei.c --- linux-2.6/fs/namei.c 25 Aug 2003 15:29:19 -0000 1.13 +++ linux-2.6/fs/namei.c 24 Sep 2003 14:54:40 -0000 @@ -218,7 +218,7 @@ if (retval) return retval; - return security_inode_permission(inode, mask); + return security_inode_permission(inode, mask, nd); } /* @@ -302,7 +302,8 @@ * short-cut DAC fails, then call permission() to do more * complete permission check. */ -static inline int exec_permission_lite(struct inode *inode) +static inline int exec_permission_lite(struct inode *inode, + struct nameidata *nd) { umode_t mode = inode->i_mode; @@ -325,7 +326,7 @@ return -EACCES; ok: - return security_inode_permission(inode, MAY_EXEC); + return security_inode_permission(inode, MAY_EXEC, nd); } /* @@ -584,7 +585,7 @@ struct qstr this; unsigned int c; - err = exec_permission_lite(inode); + err = exec_permission_lite(inode, nd); if (err == -EAGAIN) { err = permission(inode, MAY_EXEC, nd); } Index: linux-2.6/include/linux/security.h =================================================================== RCS file: /nfshome/pal/CVS/linux-2.6/include/linux/security.h,v retrieving revision 1.25 diff -u -r1.25 security.h --- linux-2.6/include/linux/security.h 24 Jun 2003 14:55:43 -0000 1.25 +++ linux-2.6/include/linux/security.h 24 Sep 2003 14:55:17 -0000 @@ -334,6 +334,7 @@ * called when the actual read/write operations are performed. * @inode contains the inode structure to check. * @mask contains the permission mask. + * @nd contains the nameidata (may be NULL). * Return 0 if permission is granted. * @inode_setattr: * Check permission before setting file attributes. Note that the kernel @@ -1055,7 +1056,7 @@ struct dentry *new_dentry); int (*inode_readlink) (struct dentry *dentry); int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd); - int (*inode_permission) (struct inode *inode, int mask); + int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd); int (*inode_setattr) (struct dentry *dentry, struct iattr *attr); int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry); void (*inode_delete) (struct inode *inode); @@ -1474,9 +1475,10 @@ return security_ops->inode_follow_link (dentry, nd); } -static inline int security_inode_permission (struct inode *inode, int mask) +static inline int security_inode_permission (struct inode *inode, int mask, + struct nameidata *nd) { - return security_ops->inode_permission (inode, mask); + return security_ops->inode_permission (inode, mask, nd); } static inline int security_inode_setattr (struct dentry *dentry, @@ -2110,7 +2112,8 @@ return 0; } -static inline int security_inode_permission (struct inode *inode, int mask) +static inline int security_inode_permission (struct inode *inode, int mask, + struct nameidata *nd) { return 0; } Index: linux-2.6/security/dummy.c =================================================================== RCS file: /nfshome/pal/CVS/linux-2.6/security/dummy.c,v retrieving revision 1.22 diff -u -r1.22 dummy.c --- linux-2.6/security/dummy.c 3 Jul 2003 14:31:12 -0000 1.22 +++ linux-2.6/security/dummy.c 24 Sep 2003 14:54:40 -0000 @@ -364,7 +364,7 @@ return 0; } -static int dummy_inode_permission (struct inode *inode, int mask) +static int dummy_inode_permission (struct inode *inode, int mask, struct nameidata *nd) { return 0; } Index: linux-2.6/security/selinux/hooks.c =================================================================== RCS file: /nfshome/pal/CVS/linux-2.6/security/selinux/hooks.c,v retrieving revision 1.73 diff -u -r1.73 hooks.c --- linux-2.6/security/selinux/hooks.c 4 Sep 2003 18:23:49 -0000 1.73 +++ linux-2.6/security/selinux/hooks.c 24 Sep 2003 14:54:40 -0000 @@ -1730,12 +1730,17 @@ return dentry_has_perm(current, NULL, dentry, FILE__READ); } -static int selinux_inode_permission(struct inode *inode, int mask) +static int selinux_inode_permission(struct inode *inode, int mask, + struct nameidata *nd) { if (!mask) { /* No permission to check. Existence test. */ return 0; } + + if (nd && nd->dentry) + return dentry_has_perm(current, nd->mnt, nd->dentry, + file_mask_to_av(inode->i_mode, mask)); return inode_has_perm(current, inode, file_mask_to_av(inode->i_mode, mask), NULL, NULL);