Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6: ecryptfs: remove unnecessary decrypt when extending a file ecryptfs: Fix ecryptfs_printk() size_t warnings fs/ecryptfs: Add printf format/argument verification and fix fallout ecryptfs: fixed testing of file descriptor flags ecryptfs: test lower_file pointer when lower_file_mutex is locked ecryptfs: missing initialization of the superblock 'magic' field ecryptfs: moved ECRYPTFS_SUPER_MAGIC definition to linux/magic.h ecryptfs: fix truncation error in ecryptfs_read_update_atime
This commit is contained in:
commit
9e8a462a01
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@ -348,7 +348,7 @@ static int encrypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,
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BUG_ON(!crypt_stat || !crypt_stat->tfm
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|| !(crypt_stat->flags & ECRYPTFS_STRUCT_INITIALIZED));
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if (unlikely(ecryptfs_verbosity > 0)) {
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ecryptfs_printk(KERN_DEBUG, "Key size [%d]; key:\n",
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ecryptfs_printk(KERN_DEBUG, "Key size [%zd]; key:\n",
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crypt_stat->key_size);
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ecryptfs_dump_hex(crypt_stat->key,
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crypt_stat->key_size);
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@ -413,10 +413,9 @@ static int ecryptfs_encrypt_extent(struct page *enc_extent_page,
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rc = ecryptfs_derive_iv(extent_iv, crypt_stat,
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(extent_base + extent_offset));
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if (rc) {
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ecryptfs_printk(KERN_ERR, "Error attempting to "
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"derive IV for extent [0x%.16x]; "
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"rc = [%d]\n", (extent_base + extent_offset),
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rc);
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ecryptfs_printk(KERN_ERR, "Error attempting to derive IV for "
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"extent [0x%.16llx]; rc = [%d]\n",
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(unsigned long long)(extent_base + extent_offset), rc);
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goto out;
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}
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if (unlikely(ecryptfs_verbosity > 0)) {
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@ -443,9 +442,9 @@ static int ecryptfs_encrypt_extent(struct page *enc_extent_page,
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}
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rc = 0;
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if (unlikely(ecryptfs_verbosity > 0)) {
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ecryptfs_printk(KERN_DEBUG, "Encrypt extent [0x%.16x]; "
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"rc = [%d]\n", (extent_base + extent_offset),
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rc);
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ecryptfs_printk(KERN_DEBUG, "Encrypt extent [0x%.16llx]; "
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"rc = [%d]\n",
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(unsigned long long)(extent_base + extent_offset), rc);
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ecryptfs_printk(KERN_DEBUG, "First 8 bytes after "
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"encryption:\n");
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ecryptfs_dump_hex((char *)(page_address(enc_extent_page)), 8);
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@ -540,10 +539,9 @@ static int ecryptfs_decrypt_extent(struct page *page,
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rc = ecryptfs_derive_iv(extent_iv, crypt_stat,
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(extent_base + extent_offset));
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if (rc) {
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ecryptfs_printk(KERN_ERR, "Error attempting to "
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"derive IV for extent [0x%.16x]; "
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"rc = [%d]\n", (extent_base + extent_offset),
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rc);
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ecryptfs_printk(KERN_ERR, "Error attempting to derive IV for "
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"extent [0x%.16llx]; rc = [%d]\n",
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(unsigned long long)(extent_base + extent_offset), rc);
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goto out;
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}
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if (unlikely(ecryptfs_verbosity > 0)) {
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@ -571,9 +569,9 @@ static int ecryptfs_decrypt_extent(struct page *page,
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}
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rc = 0;
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if (unlikely(ecryptfs_verbosity > 0)) {
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ecryptfs_printk(KERN_DEBUG, "Decrypt extent [0x%.16x]; "
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"rc = [%d]\n", (extent_base + extent_offset),
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rc);
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ecryptfs_printk(KERN_DEBUG, "Decrypt extent [0x%.16llx]; "
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"rc = [%d]\n",
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(unsigned long long)(extent_base + extent_offset), rc);
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ecryptfs_printk(KERN_DEBUG, "First 8 bytes after "
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"decryption:\n");
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ecryptfs_dump_hex((char *)(page_address(page)
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@ -780,7 +778,7 @@ int ecryptfs_init_crypt_ctx(struct ecryptfs_crypt_stat *crypt_stat)
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}
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ecryptfs_printk(KERN_DEBUG,
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"Initializing cipher [%s]; strlen = [%d]; "
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"key_size_bits = [%d]\n",
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"key_size_bits = [%zd]\n",
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crypt_stat->cipher, (int)strlen(crypt_stat->cipher),
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crypt_stat->key_size << 3);
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if (crypt_stat->tfm) {
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|
|
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@ -192,7 +192,6 @@ ecryptfs_get_key_payload_data(struct key *key)
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(((struct user_key_payload*)key->payload.data)->data);
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}
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#define ECRYPTFS_SUPER_MAGIC 0xf15f
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#define ECRYPTFS_MAX_KEYSET_SIZE 1024
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#define ECRYPTFS_MAX_CIPHER_NAME_SIZE 32
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#define ECRYPTFS_MAX_NUM_ENC_KEYS 64
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@ -584,6 +583,7 @@ ecryptfs_set_dentry_lower_mnt(struct dentry *dentry, struct vfsmount *lower_mnt)
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#define ecryptfs_printk(type, fmt, arg...) \
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__ecryptfs_printk(type "%s: " fmt, __func__, ## arg);
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__attribute__ ((format(printf, 1, 2)))
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void __ecryptfs_printk(const char *fmt, ...);
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extern const struct file_operations ecryptfs_main_fops;
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@ -47,7 +47,7 @@ static ssize_t ecryptfs_read_update_atime(struct kiocb *iocb,
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const struct iovec *iov,
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unsigned long nr_segs, loff_t pos)
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{
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int rc;
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ssize_t rc;
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struct dentry *lower_dentry;
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struct vfsmount *lower_vfsmount;
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struct file *file = iocb->ki_filp;
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@ -191,18 +191,16 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
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| ECRYPTFS_ENCRYPTED);
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}
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mutex_unlock(&crypt_stat->cs_mutex);
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if (!ecryptfs_inode_to_private(inode)->lower_file) {
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rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
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if (rc) {
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printk(KERN_ERR "%s: Error attempting to initialize "
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"the persistent file for the dentry with name "
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"[%s]; rc = [%d]\n", __func__,
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ecryptfs_dentry->d_name.name, rc);
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goto out_free;
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}
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rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
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if (rc) {
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printk(KERN_ERR "%s: Error attempting to initialize "
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"the persistent file for the dentry with name "
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"[%s]; rc = [%d]\n", __func__,
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ecryptfs_dentry->d_name.name, rc);
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goto out_free;
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}
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if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY)
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&& !(file->f_flags & O_RDONLY)) {
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if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_ACCMODE)
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== O_RDONLY && (file->f_flags & O_ACCMODE) != O_RDONLY) {
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rc = -EPERM;
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printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs "
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"file must hence be opened RO\n", __func__);
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@ -243,9 +241,9 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
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}
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}
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mutex_unlock(&crypt_stat->cs_mutex);
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ecryptfs_printk(KERN_DEBUG, "inode w/ addr = [0x%p], i_ino = [0x%.16x] "
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"size: [0x%.16x]\n", inode, inode->i_ino,
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i_size_read(inode));
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ecryptfs_printk(KERN_DEBUG, "inode w/ addr = [0x%p], i_ino = "
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"[0x%.16lx] size: [0x%.16llx]\n", inode, inode->i_ino,
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(unsigned long long)i_size_read(inode));
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goto out;
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out_free:
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kmem_cache_free(ecryptfs_file_info_cache,
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@ -185,15 +185,13 @@ static int ecryptfs_initialize_file(struct dentry *ecryptfs_dentry)
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"context; rc = [%d]\n", rc);
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goto out;
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}
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if (!ecryptfs_inode_to_private(ecryptfs_dentry->d_inode)->lower_file) {
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rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
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if (rc) {
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printk(KERN_ERR "%s: Error attempting to initialize "
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"the persistent file for the dentry with name "
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"[%s]; rc = [%d]\n", __func__,
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ecryptfs_dentry->d_name.name, rc);
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goto out;
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}
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rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
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if (rc) {
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printk(KERN_ERR "%s: Error attempting to initialize "
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"the persistent file for the dentry with name "
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"[%s]; rc = [%d]\n", __func__,
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ecryptfs_dentry->d_name.name, rc);
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goto out;
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}
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rc = ecryptfs_write_metadata(ecryptfs_dentry);
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if (rc) {
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@ -302,15 +300,13 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry,
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rc = -ENOMEM;
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goto out;
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}
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if (!ecryptfs_inode_to_private(ecryptfs_dentry->d_inode)->lower_file) {
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rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
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if (rc) {
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printk(KERN_ERR "%s: Error attempting to initialize "
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"the persistent file for the dentry with name "
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"[%s]; rc = [%d]\n", __func__,
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ecryptfs_dentry->d_name.name, rc);
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goto out_free_kmem;
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}
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rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
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if (rc) {
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printk(KERN_ERR "%s: Error attempting to initialize "
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"the persistent file for the dentry with name "
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"[%s]; rc = [%d]\n", __func__,
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ecryptfs_dentry->d_name.name, rc);
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goto out_free_kmem;
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}
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crypt_stat = &ecryptfs_inode_to_private(
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ecryptfs_dentry->d_inode)->crypt_stat;
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|
|
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@ -59,7 +59,7 @@ static int process_request_key_err(long err_code)
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break;
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default:
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ecryptfs_printk(KERN_WARNING, "Unknown error code: "
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"[0x%.16x]\n", err_code);
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"[0x%.16lx]\n", err_code);
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rc = -EINVAL;
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}
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return rc;
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@ -130,7 +130,7 @@ int ecryptfs_write_packet_length(char *dest, size_t size,
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} else {
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rc = -EINVAL;
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ecryptfs_printk(KERN_WARNING,
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"Unsupported packet size: [%d]\n", size);
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"Unsupported packet size: [%zd]\n", size);
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}
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return rc;
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}
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@ -1672,7 +1672,7 @@ decrypt_passphrase_encrypted_session_key(struct ecryptfs_auth_tok *auth_tok,
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auth_tok->session_key.decrypted_key_size);
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crypt_stat->flags |= ECRYPTFS_KEY_VALID;
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if (unlikely(ecryptfs_verbosity > 0)) {
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ecryptfs_printk(KERN_DEBUG, "FEK of size [%d]:\n",
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ecryptfs_printk(KERN_DEBUG, "FEK of size [%zd]:\n",
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crypt_stat->key_size);
|
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ecryptfs_dump_hex(crypt_stat->key,
|
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crypt_stat->key_size);
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|
@ -1754,7 +1754,7 @@ int ecryptfs_parse_packet_set(struct ecryptfs_crypt_stat *crypt_stat,
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if (ECRYPTFS_SIG_SIZE != tag_11_contents_size) {
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ecryptfs_printk(KERN_ERR, "Expected "
|
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"signature of size [%d]; "
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"read size [%d]\n",
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"read size [%zd]\n",
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ECRYPTFS_SIG_SIZE,
|
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tag_11_contents_size);
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rc = -EIO;
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|
@ -1787,8 +1787,8 @@ int ecryptfs_parse_packet_set(struct ecryptfs_crypt_stat *crypt_stat,
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goto out_wipe_list;
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||||
break;
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||||
default:
|
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ecryptfs_printk(KERN_DEBUG, "No packet at offset "
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"[%d] of the file header; hex value of "
|
||||
ecryptfs_printk(KERN_DEBUG, "No packet at offset [%zd] "
|
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"of the file header; hex value of "
|
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"character is [0x%.2x]\n", i, src[i]);
|
||||
next_packet_is_auth_tok_packet = 0;
|
||||
}
|
||||
|
@ -1864,8 +1864,8 @@ found_matching_auth_tok:
|
|||
"session key for authentication token with sig "
|
||||
"[%.*s]; rc = [%d]. Removing auth tok "
|
||||
"candidate from the list and searching for "
|
||||
"the next match.\n", candidate_auth_tok_sig,
|
||||
ECRYPTFS_SIG_SIZE_HEX, rc);
|
||||
"the next match.\n", ECRYPTFS_SIG_SIZE_HEX,
|
||||
candidate_auth_tok_sig, rc);
|
||||
list_for_each_entry_safe(auth_tok_list_item,
|
||||
auth_tok_list_item_tmp,
|
||||
&auth_tok_list, list) {
|
||||
|
@ -2168,7 +2168,7 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes,
|
|||
if (encrypted_session_key_valid) {
|
||||
ecryptfs_printk(KERN_DEBUG, "encrypted_session_key_valid != 0; "
|
||||
"using auth_tok->session_key.encrypted_key, "
|
||||
"where key_rec->enc_key_size = [%d]\n",
|
||||
"where key_rec->enc_key_size = [%zd]\n",
|
||||
key_rec->enc_key_size);
|
||||
memcpy(key_rec->enc_key,
|
||||
auth_tok->session_key.encrypted_key,
|
||||
|
@ -2198,7 +2198,7 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes,
|
|||
if (rc < 1 || rc > 2) {
|
||||
ecryptfs_printk(KERN_ERR, "Error generating scatterlist "
|
||||
"for crypt_stat session key; expected rc = 1; "
|
||||
"got rc = [%d]. key_rec->enc_key_size = [%d]\n",
|
||||
"got rc = [%d]. key_rec->enc_key_size = [%zd]\n",
|
||||
rc, key_rec->enc_key_size);
|
||||
rc = -ENOMEM;
|
||||
goto out;
|
||||
|
@ -2209,7 +2209,7 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes,
|
|||
ecryptfs_printk(KERN_ERR, "Error generating scatterlist "
|
||||
"for crypt_stat encrypted session key; "
|
||||
"expected rc = 1; got rc = [%d]. "
|
||||
"key_rec->enc_key_size = [%d]\n", rc,
|
||||
"key_rec->enc_key_size = [%zd]\n", rc,
|
||||
key_rec->enc_key_size);
|
||||
rc = -ENOMEM;
|
||||
goto out;
|
||||
|
@ -2224,7 +2224,7 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes,
|
|||
goto out;
|
||||
}
|
||||
rc = 0;
|
||||
ecryptfs_printk(KERN_DEBUG, "Encrypting [%d] bytes of the key\n",
|
||||
ecryptfs_printk(KERN_DEBUG, "Encrypting [%zd] bytes of the key\n",
|
||||
crypt_stat->key_size);
|
||||
rc = crypto_blkcipher_encrypt(&desc, dst_sg, src_sg,
|
||||
(*key_rec).enc_key_size);
|
||||
|
@ -2235,7 +2235,7 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes,
|
|||
}
|
||||
ecryptfs_printk(KERN_DEBUG, "This should be the encrypted key:\n");
|
||||
if (ecryptfs_verbosity > 0) {
|
||||
ecryptfs_printk(KERN_DEBUG, "EFEK of size [%d]:\n",
|
||||
ecryptfs_printk(KERN_DEBUG, "EFEK of size [%zd]:\n",
|
||||
key_rec->enc_key_size);
|
||||
ecryptfs_dump_hex(key_rec->enc_key,
|
||||
key_rec->enc_key_size);
|
||||
|
|
|
@ -36,6 +36,7 @@
|
|||
#include <linux/parser.h>
|
||||
#include <linux/fs_stack.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/magic.h>
|
||||
#include "ecryptfs_kernel.h"
|
||||
|
||||
/**
|
||||
|
@ -564,6 +565,7 @@ static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags
|
|||
ecryptfs_set_superblock_lower(s, path.dentry->d_sb);
|
||||
s->s_maxbytes = path.dentry->d_sb->s_maxbytes;
|
||||
s->s_blocksize = path.dentry->d_sb->s_blocksize;
|
||||
s->s_magic = ECRYPTFS_SUPER_MAGIC;
|
||||
|
||||
inode = ecryptfs_get_inode(path.dentry->d_inode, s);
|
||||
rc = PTR_ERR(inode);
|
||||
|
@ -808,9 +810,10 @@ static int __init ecryptfs_init(void)
|
|||
ecryptfs_printk(KERN_ERR, "The eCryptfs extent size is "
|
||||
"larger than the host's page size, and so "
|
||||
"eCryptfs cannot run on this system. The "
|
||||
"default eCryptfs extent size is [%d] bytes; "
|
||||
"the page size is [%d] bytes.\n",
|
||||
ECRYPTFS_DEFAULT_EXTENT_SIZE, PAGE_CACHE_SIZE);
|
||||
"default eCryptfs extent size is [%u] bytes; "
|
||||
"the page size is [%lu] bytes.\n",
|
||||
ECRYPTFS_DEFAULT_EXTENT_SIZE,
|
||||
(unsigned long)PAGE_CACHE_SIZE);
|
||||
goto out;
|
||||
}
|
||||
rc = ecryptfs_init_kmem_caches();
|
||||
|
|
|
@ -65,7 +65,7 @@ static int ecryptfs_writepage(struct page *page, struct writeback_control *wbc)
|
|||
rc = ecryptfs_encrypt_page(page);
|
||||
if (rc) {
|
||||
ecryptfs_printk(KERN_WARNING, "Error encrypting "
|
||||
"page (upper index [0x%.16x])\n", page->index);
|
||||
"page (upper index [0x%.16lx])\n", page->index);
|
||||
ClearPageUptodate(page);
|
||||
goto out;
|
||||
}
|
||||
|
@ -237,7 +237,7 @@ out:
|
|||
ClearPageUptodate(page);
|
||||
else
|
||||
SetPageUptodate(page);
|
||||
ecryptfs_printk(KERN_DEBUG, "Unlocking page with index = [0x%.16x]\n",
|
||||
ecryptfs_printk(KERN_DEBUG, "Unlocking page with index = [0x%.16lx]\n",
|
||||
page->index);
|
||||
unlock_page(page);
|
||||
return rc;
|
||||
|
@ -290,6 +290,7 @@ static int ecryptfs_write_begin(struct file *file,
|
|||
return -ENOMEM;
|
||||
*pagep = page;
|
||||
|
||||
prev_page_end_size = ((loff_t)index << PAGE_CACHE_SHIFT);
|
||||
if (!PageUptodate(page)) {
|
||||
struct ecryptfs_crypt_stat *crypt_stat =
|
||||
&ecryptfs_inode_to_private(mapping->host)->crypt_stat;
|
||||
|
@ -335,18 +336,23 @@ static int ecryptfs_write_begin(struct file *file,
|
|||
SetPageUptodate(page);
|
||||
}
|
||||
} else {
|
||||
rc = ecryptfs_decrypt_page(page);
|
||||
if (rc) {
|
||||
printk(KERN_ERR "%s: Error decrypting page "
|
||||
"at index [%ld]; rc = [%d]\n",
|
||||
__func__, page->index, rc);
|
||||
ClearPageUptodate(page);
|
||||
goto out;
|
||||
if (prev_page_end_size
|
||||
>= i_size_read(page->mapping->host)) {
|
||||
zero_user(page, 0, PAGE_CACHE_SIZE);
|
||||
} else {
|
||||
rc = ecryptfs_decrypt_page(page);
|
||||
if (rc) {
|
||||
printk(KERN_ERR "%s: Error decrypting "
|
||||
"page at index [%ld]; "
|
||||
"rc = [%d]\n",
|
||||
__func__, page->index, rc);
|
||||
ClearPageUptodate(page);
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
SetPageUptodate(page);
|
||||
}
|
||||
}
|
||||
prev_page_end_size = ((loff_t)index << PAGE_CACHE_SHIFT);
|
||||
/* If creating a page or more of holes, zero them out via truncate.
|
||||
* Note, this will increase i_size. */
|
||||
if (index != 0) {
|
||||
|
@ -488,7 +494,7 @@ static int ecryptfs_write_end(struct file *file,
|
|||
} else
|
||||
ecryptfs_printk(KERN_DEBUG, "Not a new file\n");
|
||||
ecryptfs_printk(KERN_DEBUG, "Calling fill_zeros_to_end_of_page"
|
||||
"(page w/ index = [0x%.16x], to = [%d])\n", index, to);
|
||||
"(page w/ index = [0x%.16lx], to = [%d])\n", index, to);
|
||||
if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
|
||||
rc = ecryptfs_write_lower_page_segment(ecryptfs_inode, page, 0,
|
||||
to);
|
||||
|
@ -503,19 +509,20 @@ static int ecryptfs_write_end(struct file *file,
|
|||
rc = fill_zeros_to_end_of_page(page, to);
|
||||
if (rc) {
|
||||
ecryptfs_printk(KERN_WARNING, "Error attempting to fill "
|
||||
"zeros in page with index = [0x%.16x]\n", index);
|
||||
"zeros in page with index = [0x%.16lx]\n", index);
|
||||
goto out;
|
||||
}
|
||||
rc = ecryptfs_encrypt_page(page);
|
||||
if (rc) {
|
||||
ecryptfs_printk(KERN_WARNING, "Error encrypting page (upper "
|
||||
"index [0x%.16x])\n", index);
|
||||
"index [0x%.16lx])\n", index);
|
||||
goto out;
|
||||
}
|
||||
if (pos + copied > i_size_read(ecryptfs_inode)) {
|
||||
i_size_write(ecryptfs_inode, pos + copied);
|
||||
ecryptfs_printk(KERN_DEBUG, "Expanded file size to "
|
||||
"[0x%.16x]\n", i_size_read(ecryptfs_inode));
|
||||
"[0x%.16llx]\n",
|
||||
(unsigned long long)i_size_read(ecryptfs_inode));
|
||||
}
|
||||
rc = ecryptfs_write_inode_size_to_metadata(ecryptfs_inode);
|
||||
if (rc)
|
||||
|
|
|
@ -16,6 +16,7 @@
|
|||
#define TMPFS_MAGIC 0x01021994
|
||||
#define HUGETLBFS_MAGIC 0x958458f6 /* some random number */
|
||||
#define SQUASHFS_MAGIC 0x73717368
|
||||
#define ECRYPTFS_SUPER_MAGIC 0xf15f
|
||||
#define EFS_SUPER_MAGIC 0x414A53
|
||||
#define EXT2_SUPER_MAGIC 0xEF53
|
||||
#define EXT3_SUPER_MAGIC 0xEF53
|
||||
|
|
Loading…
Reference in New Issue