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eCryptfs: Print FNEK sig properly in /proc/mounts
The filename encryption key signature is not properly displayed in /proc/mounts. The "ecryptfs_sig=" mount option name is displayed for all global authentication tokens, included those for filename keys. This patch checks the global authentication token flags to determine if the key is a FEKEK or FNEK and prints the appropriate mount option name before the signature. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
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@ -170,7 +170,10 @@ static int ecryptfs_show_options(struct seq_file *m, struct vfsmount *mnt)
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list_for_each_entry(walker,
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&mount_crypt_stat->global_auth_tok_list,
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mount_crypt_stat_list) {
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seq_printf(m, ",ecryptfs_sig=%s", walker->sig);
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if (walker->flags & ECRYPTFS_AUTH_TOK_FNEK)
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seq_printf(m, ",ecryptfs_fnek_sig=%s", walker->sig);
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else
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seq_printf(m, ",ecryptfs_sig=%s", walker->sig);
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}
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mutex_unlock(&mount_crypt_stat->global_auth_tok_list_mutex);
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