diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c index 65b3a1b5b88d..8ec9323e830a 100644 --- a/fs/jffs2/acl.c +++ b/fs/jffs2/acl.c @@ -176,7 +176,7 @@ static void jffs2_iset_acl(struct inode *inode, struct posix_acl **i_acl, struct spin_unlock(&inode->i_lock); } -static struct posix_acl *jffs2_get_acl(struct inode *inode, int type) +struct posix_acl *jffs2_get_acl(struct inode *inode, int type) { struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode); struct posix_acl *acl; @@ -247,8 +247,13 @@ static int jffs2_set_acl(struct inode *inode, int type, struct posix_acl *acl) if (rc < 0) return rc; if (inode->i_mode != mode) { - inode->i_mode = mode; - jffs2_dirty_inode(inode); + struct iattr attr; + + attr.ia_valid = ATTR_MODE; + attr.ia_mode = mode; + rc = jffs2_do_setattr(inode, &attr); + if (rc < 0) + return rc; } if (rc == 0) acl = NULL; @@ -307,22 +312,16 @@ int jffs2_permission(struct inode *inode, int mask, struct nameidata *nd) return generic_permission(inode, mask, jffs2_check_acl); } -int jffs2_init_acl(struct inode *inode, struct inode *dir) +int jffs2_init_acl(struct inode *inode, struct posix_acl *acl) { struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode); - struct posix_acl *acl = NULL, *clone; + struct posix_acl *clone; mode_t mode; int rc = 0; f->i_acl_access = JFFS2_ACL_NOT_CACHED; f->i_acl_default = JFFS2_ACL_NOT_CACHED; - if (!S_ISLNK(inode->i_mode)) { - acl = jffs2_get_acl(dir, ACL_TYPE_DEFAULT); - if (IS_ERR(acl)) - return PTR_ERR(acl); - if (!acl) - inode->i_mode &= ~current->fs->umask; - } + if (acl) { if (S_ISDIR(inode->i_mode)) { rc = jffs2_set_acl(inode, ACL_TYPE_DEFAULT, acl); diff --git a/fs/jffs2/acl.h b/fs/jffs2/acl.h index c84378cee82a..90a2dbf59051 100644 --- a/fs/jffs2/acl.h +++ b/fs/jffs2/acl.h @@ -28,9 +28,10 @@ struct jffs2_acl_header { #define JFFS2_ACL_NOT_CACHED ((void *)-1) +extern struct posix_acl *jffs2_get_acl(struct inode *inode, int type); extern int jffs2_permission(struct inode *, int, struct nameidata *); extern int jffs2_acl_chmod(struct inode *); -extern int jffs2_init_acl(struct inode *, struct inode *); +extern int jffs2_init_acl(struct inode *, struct posix_acl *); extern void jffs2_clear_acl(struct jffs2_inode_info *); extern struct xattr_handler jffs2_acl_access_xattr_handler; @@ -38,6 +39,7 @@ extern struct xattr_handler jffs2_acl_default_xattr_handler; #else +#define jffs2_get_acl(inode, type) (NULL) #define jffs2_permission NULL #define jffs2_acl_chmod(inode) (0) #define jffs2_init_acl(inode,dir) (0) diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c index d293a1fad6d6..8353eb9c1799 100644 --- a/fs/jffs2/dir.c +++ b/fs/jffs2/dir.c @@ -182,6 +182,7 @@ static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode, struct jffs2_inode_info *f, *dir_f; struct jffs2_sb_info *c; struct inode *inode; + struct posix_acl *acl; int ret; ri = jffs2_alloc_raw_inode(); @@ -192,7 +193,7 @@ static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode, D1(printk(KERN_DEBUG "jffs2_create()\n")); - inode = jffs2_new_inode(dir_i, mode, ri); + inode = jffs2_new_inode(dir_i, mode, ri, &acl); if (IS_ERR(inode)) { D1(printk(KERN_DEBUG "jffs2_new_inode() failed\n")); @@ -212,12 +213,12 @@ static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode, dentry->d_name.name, dentry->d_name.len); if (ret) - goto fail; + goto fail_acl; ret = jffs2_init_security(inode, dir_i); if (ret) - goto fail; - ret = jffs2_init_acl(inode, dir_i); + goto fail_acl; + ret = jffs2_init_acl(inode, acl); if (ret) goto fail; @@ -230,6 +231,8 @@ static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode, inode->i_ino, inode->i_mode, inode->i_nlink, f->inocache->nlink, inode->i_mapping->nrpages)); return 0; + fail_acl: + posix_acl_release(acl); fail: make_bad_inode(inode); iput(inode); @@ -306,6 +309,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char struct jffs2_full_dirent *fd; int namelen; uint32_t alloclen; + struct posix_acl *acl; int ret, targetlen = strlen(target); /* FIXME: If you care. We'd need to use frags for the target @@ -332,7 +336,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char return ret; } - inode = jffs2_new_inode(dir_i, S_IFLNK | S_IRWXUGO, ri); + inode = jffs2_new_inode(dir_i, S_IFLNK | S_IRWXUGO, ri, &acl); if (IS_ERR(inode)) { jffs2_free_raw_inode(ri); @@ -362,6 +366,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char up(&f->sem); jffs2_complete_reservation(c); jffs2_clear_inode(inode); + posix_acl_release(acl); return PTR_ERR(fn); } @@ -372,6 +377,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char up(&f->sem); jffs2_complete_reservation(c); jffs2_clear_inode(inode); + posix_acl_release(acl); return -ENOMEM; } @@ -389,9 +395,10 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char ret = jffs2_init_security(inode, dir_i); if (ret) { jffs2_clear_inode(inode); + posix_acl_release(acl); return ret; } - ret = jffs2_init_acl(inode, dir_i); + ret = jffs2_init_acl(inode, acl); if (ret) { jffs2_clear_inode(inode); return ret; @@ -469,6 +476,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode) struct jffs2_full_dirent *fd; int namelen; uint32_t alloclen; + struct posix_acl *acl; int ret; mode |= S_IFDIR; @@ -491,7 +499,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode) return ret; } - inode = jffs2_new_inode(dir_i, mode, ri); + inode = jffs2_new_inode(dir_i, mode, ri, &acl); if (IS_ERR(inode)) { jffs2_free_raw_inode(ri); @@ -518,6 +526,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode) up(&f->sem); jffs2_complete_reservation(c); jffs2_clear_inode(inode); + posix_acl_release(acl); return PTR_ERR(fn); } /* No data here. Only a metadata node, which will be @@ -531,9 +540,10 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode) ret = jffs2_init_security(inode, dir_i); if (ret) { jffs2_clear_inode(inode); + posix_acl_release(acl); return ret; } - ret = jffs2_init_acl(inode, dir_i); + ret = jffs2_init_acl(inode, acl); if (ret) { jffs2_clear_inode(inode); return ret; @@ -629,6 +639,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de union jffs2_device_node dev; int devlen = 0; uint32_t alloclen; + struct posix_acl *acl; int ret; if (!new_valid_dev(rdev)) @@ -655,7 +666,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de return ret; } - inode = jffs2_new_inode(dir_i, mode, ri); + inode = jffs2_new_inode(dir_i, mode, ri, &acl); if (IS_ERR(inode)) { jffs2_free_raw_inode(ri); @@ -684,6 +695,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de up(&f->sem); jffs2_complete_reservation(c); jffs2_clear_inode(inode); + posix_acl_release(acl); return PTR_ERR(fn); } /* No data here. Only a metadata node, which will be @@ -697,9 +709,10 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de ret = jffs2_init_security(inode, dir_i); if (ret) { jffs2_clear_inode(inode); + posix_acl_release(acl); return ret; } - ret = jffs2_init_acl(inode, dir_i); + ret = jffs2_init_acl(inode, acl); if (ret) { jffs2_clear_inode(inode); return ret; diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index 1d3b7a9fc828..dd64ddc11d43 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -24,7 +24,7 @@ static int jffs2_flash_setup(struct jffs2_sb_info *c); -static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr) +int jffs2_do_setattr (struct inode *inode, struct iattr *iattr) { struct jffs2_full_dnode *old_metadata, *new_metadata; struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode); @@ -36,10 +36,8 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr) unsigned int ivalid; uint32_t alloclen; int ret; + D1(printk(KERN_DEBUG "jffs2_setattr(): ino #%lu\n", inode->i_ino)); - ret = inode_change_ok(inode, iattr); - if (ret) - return ret; /* Special cases - we don't want more than one data node for these types on the medium at any time. So setattr @@ -183,9 +181,14 @@ int jffs2_setattr(struct dentry *dentry, struct iattr *iattr) { int rc; + rc = inode_change_ok(dentry->d_inode, iattr); + if (rc) + return rc; + rc = jffs2_do_setattr(dentry->d_inode, iattr); if (!rc && (iattr->ia_valid & ATTR_MODE)) rc = jffs2_acl_chmod(dentry->d_inode); + return rc; } @@ -399,7 +402,8 @@ void jffs2_write_super (struct super_block *sb) /* jffs2_new_inode: allocate a new inode and inocache, add it to the hash, fill in the raw_inode while you're at it. */ -struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_inode *ri) +struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_inode *ri, + struct posix_acl **acl) { struct inode *inode; struct super_block *sb = dir_i->i_sb; @@ -431,7 +435,23 @@ struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_i } else { ri->gid = cpu_to_je16(current->fsgid); } - ri->mode = cpu_to_jemode(mode); + + /* POSIX ACLs have to be processed now, at least partly. + The umask is only applied if there's no default ACL */ + if (!S_ISLNK(mode)) { + *acl = jffs2_get_acl(dir_i, ACL_TYPE_DEFAULT); + if (IS_ERR(*acl)) { + make_bad_inode(inode); + iput(inode); + inode = (void *)*acl; + *acl = NULL; + return inode; + } + if (!(*acl)) + mode &= ~current->fs->umask; + } else { + *acl = NULL; + } ret = jffs2_do_new_inode (c, f, mode, ri); if (ret) { make_bad_inode(inode); diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h index 80daea96bbc2..f6743a915cf3 100644 --- a/fs/jffs2/os-linux.h +++ b/fs/jffs2/os-linux.h @@ -173,12 +173,15 @@ int jffs2_ioctl(struct inode *, struct file *, unsigned int, unsigned long); extern const struct inode_operations jffs2_symlink_inode_operations; /* fs.c */ +struct posix_acl; + int jffs2_setattr (struct dentry *, struct iattr *); +int jffs2_do_setattr (struct inode *, struct iattr *); void jffs2_read_inode (struct inode *); void jffs2_clear_inode (struct inode *); void jffs2_dirty_inode(struct inode *inode); struct inode *jffs2_new_inode (struct inode *dir_i, int mode, - struct jffs2_raw_inode *ri); + struct jffs2_raw_inode *ri, struct posix_acl **acl); int jffs2_statfs (struct dentry *, struct kstatfs *); void jffs2_write_super (struct super_block *); int jffs2_remount_fs (struct super_block *, int *, char *);