From 2a79f17e4a641a2f463cb512cb0ec349844a147b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 9 Dec 2011 08:06:57 -0500 Subject: vfs: mnt_drop_write_file() new helper (wrapper around mnt_drop_write()) to be used in pair with mnt_want_write_file(). Signed-off-by: Al Viro --- fs/open.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/open.c') diff --git a/fs/open.c b/fs/open.c index 22c41b543f2d..4ef8d868a448 100644 --- a/fs/open.c +++ b/fs/open.c @@ -608,7 +608,7 @@ SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group) dentry = file->f_path.dentry; audit_inode(NULL, dentry); error = chown_common(&file->f_path, user, group); - mnt_drop_write(file->f_path.mnt); + mnt_drop_write_file(file); out_fput: fput(file); out: -- cgit From 49f0a0767211d3076974e59a26f36b567cbe8621 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 26 Jul 2011 04:22:01 -0400 Subject: switch sys_chmod()/sys_fchmod()/sys_fchmodat() to umode_t SYSCALLx magic should take care of things, according to Linus... Signed-off-by: Al Viro --- fs/open.c | 6 +++--- include/linux/syscalls.h | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) (limited to 'fs/open.c') diff --git a/fs/open.c b/fs/open.c index 4ef8d868a448..834e3e1adeb9 100644 --- a/fs/open.c +++ b/fs/open.c @@ -468,7 +468,7 @@ out_unlock: return error; } -SYSCALL_DEFINE2(fchmod, unsigned int, fd, mode_t, mode) +SYSCALL_DEFINE2(fchmod, unsigned int, fd, umode_t, mode) { struct file * file; int err = -EBADF; @@ -482,7 +482,7 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd, mode_t, mode) return err; } -SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, mode_t, mode) +SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode) { struct path path; int error; @@ -495,7 +495,7 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, mode_t, mode) return error; } -SYSCALL_DEFINE2(chmod, const char __user *, filename, mode_t, mode) +SYSCALL_DEFINE2(chmod, const char __user *, filename, umode_t, mode) { return sys_fchmodat(AT_FDCWD, filename, mode); } diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index b3c16d8a6383..e1a4b9b81cf2 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -483,8 +483,8 @@ asmlinkage long sys_symlink(const char __user *old, const char __user *new); asmlinkage long sys_unlink(const char __user *pathname); asmlinkage long sys_rename(const char __user *oldname, const char __user *newname); -asmlinkage long sys_chmod(const char __user *filename, mode_t mode); -asmlinkage long sys_fchmod(unsigned int fd, mode_t mode); +asmlinkage long sys_chmod(const char __user *filename, umode_t mode); +asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); #if BITS_PER_LONG == 32 @@ -769,7 +769,7 @@ asmlinkage long sys_futimesat(int dfd, const char __user *filename, struct timeval __user *utimes); asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); asmlinkage long sys_fchmodat(int dfd, const char __user * filename, - mode_t mode); + umode_t mode); asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group, int flag); asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, -- cgit From a218d0fdc5f9004164ff151d274487f6799907d0 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 21 Nov 2011 14:59:34 -0500 Subject: switch open and mkdir syscalls to umode_t Signed-off-by: Al Viro --- fs/compat.c | 4 ++-- fs/internal.h | 2 +- fs/namei.c | 6 +++--- fs/open.c | 12 ++++++------ include/linux/compat.h | 4 ++-- include/linux/fs.h | 4 ++-- include/linux/syscalls.h | 10 +++++----- 7 files changed, 21 insertions(+), 21 deletions(-) (limited to 'fs/open.c') diff --git a/fs/compat.c b/fs/compat.c index 9db5a6076610..fa9d721ecfee 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1281,7 +1281,7 @@ compat_sys_vmsplice(int fd, const struct compat_iovec __user *iov32, * O_LARGEFILE flag. */ asmlinkage long -compat_sys_open(const char __user *filename, int flags, int mode) +compat_sys_open(const char __user *filename, int flags, umode_t mode) { return do_sys_open(AT_FDCWD, filename, flags, mode); } @@ -1291,7 +1291,7 @@ compat_sys_open(const char __user *filename, int flags, int mode) * O_LARGEFILE flag. */ asmlinkage long -compat_sys_openat(unsigned int dfd, const char __user *filename, int flags, int mode) +compat_sys_openat(unsigned int dfd, const char __user *filename, int flags, umode_t mode) { return do_sys_open(dfd, filename, flags, mode); } diff --git a/fs/internal.h b/fs/internal.h index 7b1cb1528ac2..23599f88d1a5 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -88,7 +88,7 @@ extern struct file *nameidata_to_filp(struct nameidata *); extern void release_open_intent(struct nameidata *); struct open_flags { int open_flag; - int mode; + umode_t mode; int acc_mode; int intent; }; diff --git a/fs/namei.c b/fs/namei.c index e275dc36d7c5..afd5876cd072 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2177,7 +2177,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path, /* Negative dentry, just create the file */ if (!dentry->d_inode) { - int mode = op->mode; + umode_t mode = op->mode; if (!IS_POSIXACL(dir->d_inode)) mode &= ~current_umask(); /* @@ -2562,7 +2562,7 @@ int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) return error; } -SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, int, mode) +SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode) { struct dentry *dentry; struct path path; @@ -2590,7 +2590,7 @@ out_dput: return error; } -SYSCALL_DEFINE2(mkdir, const char __user *, pathname, int, mode) +SYSCALL_DEFINE2(mkdir, const char __user *, pathname, umode_t, mode) { return sys_mkdirat(AT_FDCWD, pathname, mode); } diff --git a/fs/open.c b/fs/open.c index 834e3e1adeb9..2659f596f4c5 100644 --- a/fs/open.c +++ b/fs/open.c @@ -877,7 +877,7 @@ void fd_install(unsigned int fd, struct file *file) EXPORT_SYMBOL(fd_install); -static inline int build_open_flags(int flags, int mode, struct open_flags *op) +static inline int build_open_flags(int flags, umode_t mode, struct open_flags *op) { int lookup_flags = 0; int acc_mode; @@ -948,7 +948,7 @@ static inline int build_open_flags(int flags, int mode, struct open_flags *op) * have to. But in generally you should not do this, so please move * along, nothing to see here.. */ -struct file *filp_open(const char *filename, int flags, int mode) +struct file *filp_open(const char *filename, int flags, umode_t mode) { struct open_flags op; int lookup = build_open_flags(flags, mode, &op); @@ -970,7 +970,7 @@ struct file *file_open_root(struct dentry *dentry, struct vfsmount *mnt, } EXPORT_SYMBOL(file_open_root); -long do_sys_open(int dfd, const char __user *filename, int flags, int mode) +long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode) { struct open_flags op; int lookup = build_open_flags(flags, mode, &op); @@ -994,7 +994,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, int mode) return fd; } -SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, int, mode) +SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, umode_t, mode) { long ret; @@ -1008,7 +1008,7 @@ SYSCALL_DEFINE3(open, const char __user *, filename, int, flags, int, mode) } SYSCALL_DEFINE4(openat, int, dfd, const char __user *, filename, int, flags, - int, mode) + umode_t, mode) { long ret; @@ -1027,7 +1027,7 @@ SYSCALL_DEFINE4(openat, int, dfd, const char __user *, filename, int, flags, * For backward compatibility? Maybe this should be moved * into arch/i386 instead? */ -SYSCALL_DEFINE2(creat, const char __user *, pathname, int, mode) +SYSCALL_DEFINE2(creat, const char __user *, pathname, umode_t, mode) { return sys_open(pathname, O_CREAT | O_WRONLY | O_TRUNC, mode); } diff --git a/include/linux/compat.h b/include/linux/compat.h index 66ed067fb729..41c9f6515f46 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -422,9 +422,9 @@ asmlinkage long compat_sys_getdents64(unsigned int fd, asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *, unsigned int nr_segs, unsigned int flags); asmlinkage long compat_sys_open(const char __user *filename, int flags, - int mode); + umode_t mode); asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename, - int flags, int mode); + int flags, umode_t mode); asmlinkage long compat_sys_open_by_handle_at(int mountdirfd, struct file_handle __user *handle, int flags); diff --git a/include/linux/fs.h b/include/linux/fs.h index 9d02fab420c6..f0e57b7e4297 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2054,8 +2054,8 @@ extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs, extern int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len); extern long do_sys_open(int dfd, const char __user *filename, int flags, - int mode); -extern struct file *filp_open(const char *, int, int); + umode_t mode); +extern struct file *filp_open(const char *, int, umode_t); extern struct file *file_open_root(struct dentry *, struct vfsmount *, const char *, int); extern struct file * dentry_open(struct dentry *, struct vfsmount *, int, diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index b25621476316..515669fa3c1d 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -517,9 +517,9 @@ asmlinkage long sys_sendfile64(int out_fd, int in_fd, loff_t __user *offset, size_t count); asmlinkage long sys_readlink(const char __user *path, char __user *buf, int bufsiz); -asmlinkage long sys_creat(const char __user *pathname, int mode); +asmlinkage long sys_creat(const char __user *pathname, umode_t mode); asmlinkage long sys_open(const char __user *filename, - int flags, int mode); + int flags, umode_t mode); asmlinkage long sys_close(unsigned int fd); asmlinkage long sys_access(const char __user *filename, int mode); asmlinkage long sys_vhangup(void); @@ -582,7 +582,7 @@ asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, unsigned long vlen, unsigned long pos_l, unsigned long pos_h); asmlinkage long sys_getcwd(char __user *buf, unsigned long size); -asmlinkage long sys_mkdir(const char __user *pathname, int mode); +asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); asmlinkage long sys_chdir(const char __user *filename); asmlinkage long sys_fchdir(unsigned int fd); asmlinkage long sys_rmdir(const char __user *pathname); @@ -757,7 +757,7 @@ asmlinkage long sys_spu_create(const char __user *name, asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, unsigned dev); -asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, int mode); +asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); asmlinkage long sys_symlinkat(const char __user * oldname, int newdfd, const char __user * newname); @@ -773,7 +773,7 @@ asmlinkage long sys_fchmodat(int dfd, const char __user * filename, asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group, int flag); asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, - int mode); + umode_t mode); asmlinkage long sys_newfstatat(int dfd, const char __user *filename, struct stat __user *statbuf, int flag); asmlinkage long sys_fstatat64(int dfd, const char __user *filename, -- cgit From cdcf116d44e78c7216ba9f8be9af1cdfca7af728 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 8 Dec 2011 10:51:53 -0500 Subject: switch security_path_chmod() to struct path * Signed-off-by: Al Viro --- fs/open.c | 2 +- include/linux/security.h | 10 +++------- security/apparmor/lsm.c | 7 +++---- security/capability.c | 3 +-- security/security.c | 7 +++---- security/tomoyo/tomoyo.c | 11 ++++------- 6 files changed, 15 insertions(+), 25 deletions(-) (limited to 'fs/open.c') diff --git a/fs/open.c b/fs/open.c index 2659f596f4c5..77becc041149 100644 --- a/fs/open.c +++ b/fs/open.c @@ -456,7 +456,7 @@ static int chmod_common(struct path *path, umode_t mode) if (error) return error; mutex_lock(&inode->i_mutex); - error = security_path_chmod(path->dentry, path->mnt, mode); + error = security_path_chmod(path, mode); if (error) goto out_unlock; newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO); diff --git a/include/linux/security.h b/include/linux/security.h index 535721cc374a..4298d2dbafa3 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -1435,8 +1435,7 @@ struct security_operations { struct dentry *new_dentry); int (*path_rename) (struct path *old_dir, struct dentry *old_dentry, struct path *new_dir, struct dentry *new_dentry); - int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt, - umode_t mode); + int (*path_chmod) (struct path *path, umode_t mode); int (*path_chown) (struct path *path, uid_t uid, gid_t gid); int (*path_chroot) (struct path *path); #endif @@ -2866,8 +2865,7 @@ int security_path_link(struct dentry *old_dentry, struct path *new_dir, struct dentry *new_dentry); int security_path_rename(struct path *old_dir, struct dentry *old_dentry, struct path *new_dir, struct dentry *new_dentry); -int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt, - umode_t mode); +int security_path_chmod(struct path *path, umode_t mode); int security_path_chown(struct path *path, uid_t uid, gid_t gid); int security_path_chroot(struct path *path); #else /* CONFIG_SECURITY_PATH */ @@ -2919,9 +2917,7 @@ static inline int security_path_rename(struct path *old_dir, return 0; } -static inline int security_path_chmod(struct dentry *dentry, - struct vfsmount *mnt, - umode_t mode) +static inline int security_path_chmod(struct path *path, umode_t mode) { return 0; } diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c index c0a399ec1df9..2c0a0ff41399 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -344,13 +344,12 @@ static int apparmor_path_rename(struct path *old_dir, struct dentry *old_dentry, return error; } -static int apparmor_path_chmod(struct dentry *dentry, struct vfsmount *mnt, - umode_t mode) +static int apparmor_path_chmod(struct path *path, umode_t mode) { - if (!mediated_filesystem(dentry->d_inode)) + if (!mediated_filesystem(path->dentry->d_inode)) return 0; - return common_perm_mnt_dentry(OP_CHMOD, mnt, dentry, AA_MAY_CHMOD); + return common_perm_mnt_dentry(OP_CHMOD, path->mnt, path->dentry, AA_MAY_CHMOD); } static int apparmor_path_chown(struct path *path, uid_t uid, gid_t gid) diff --git a/security/capability.c b/security/capability.c index 156816d451ba..3b5883b7179f 100644 --- a/security/capability.c +++ b/security/capability.c @@ -279,8 +279,7 @@ static int cap_path_truncate(struct path *path) return 0; } -static int cap_path_chmod(struct dentry *dentry, struct vfsmount *mnt, - umode_t mode) +static int cap_path_chmod(struct path *path, umode_t mode) { return 0; } diff --git a/security/security.c b/security/security.c index 151152de1a0a..214502c772ab 100644 --- a/security/security.c +++ b/security/security.c @@ -454,12 +454,11 @@ int security_path_truncate(struct path *path) return security_ops->path_truncate(path); } -int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt, - umode_t mode) +int security_path_chmod(struct path *path, umode_t mode) { - if (unlikely(IS_PRIVATE(dentry->d_inode))) + if (unlikely(IS_PRIVATE(path->dentry->d_inode))) return 0; - return security_ops->path_chmod(dentry, mnt, mode); + return security_ops->path_chmod(path, mode); } int security_path_chown(struct path *path, uid_t uid, gid_t gid) diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c index 75c956a51e75..620d37c159a3 100644 --- a/security/tomoyo/tomoyo.c +++ b/security/tomoyo/tomoyo.c @@ -353,17 +353,14 @@ static int tomoyo_file_ioctl(struct file *file, unsigned int cmd, /** * tomoyo_path_chmod - Target for security_path_chmod(). * - * @dentry: Pointer to "struct dentry". - * @mnt: Pointer to "struct vfsmount". - * @mode: DAC permission mode. + * @path: Pointer to "struct path". + * @mode: DAC permission mode. * * Returns 0 on success, negative value otherwise. */ -static int tomoyo_path_chmod(struct dentry *dentry, struct vfsmount *mnt, - umode_t mode) +static int tomoyo_path_chmod(struct path *path, umode_t mode) { - struct path path = { mnt, dentry }; - return tomoyo_path_number_perm(TOMOYO_TYPE_CHMOD, &path, + return tomoyo_path_number_perm(TOMOYO_TYPE_CHMOD, path, mode & S_IALLUGO); } -- cgit