Change License from GPLv2 only to GPLv2+ ("or any later").

[platform/upstream/cryptsetup.git] / src / cryptsetup_reencrypt.c

diff --git a/src/cryptsetup_reencrypt.c b/src/cryptsetup_reencrypt.c
index 16ab100..8bf064c 100644 (file)
--- a/src/cryptsetup_reencrypt.c
+++ b/src/cryptsetup_reencrypt.c
@@ -6,7 +6,8 @@
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -348,38 +349,27 @@ static void close_log(struct reenc_ctx *rc)
 
 static int open_log(struct reenc_ctx *rc)
 {
-       int flags, create_new;
-       struct stat st;
+       int flags = opt_directio ? O_DIRECT : 0;
 
-       if (!stat(rc->log_file, &st))
-               create_new = 0;
-       else if (errno == ENOENT)
-               create_new = 1;
-       else
-               return -EINVAL;
-
-       if (create_new) {
-               log_dbg("Creating LUKS reencryption log file %s.", rc->log_file);
-               flags = opt_directio ? O_RDWR|O_CREAT|O_DIRECT : O_RDWR|O_CREAT;
-               rc->log_fd = open(rc->log_file, flags, S_IRUSR|S_IWUSR);
-               if (rc->log_fd == -1)
-                       return -EINVAL;
-       } else {
+       rc->log_fd = open(rc->log_file, O_RDWR|O_EXCL|O_CREAT|flags, S_IRUSR|S_IWUSR);
+       if (rc->log_fd != -1) {
+               log_dbg("Created LUKS reencryption log file %s.", rc->log_file);
+       } else if (errno == EEXIST) {
                log_std(_("Log file %s exists, resuming reencryption.\n"), rc->log_file);
-               flags = opt_directio ? O_RDWR|O_DIRECT : O_RDWR;
-               rc->log_fd = open(rc->log_file, flags);
-               if (rc->log_fd == -1)
-                       return -EINVAL;
+               rc->log_fd = open(rc->log_file, O_RDWR|flags);
                rc->in_progress = 1;
        }
 
+       if (rc->log_fd == -1)
+               return -EINVAL;
+
        if (posix_memalign((void *)&rc->log_buf, alignment(rc->log_fd), SECTOR_SIZE)) {
                log_err(_("Allocation of aligned memory failed.\n"));
                close_log(rc);
                return -ENOMEM;
        }
 
-       if (create_new && write_log(rc) < 0) {
+       if (!rc->in_progress && write_log(rc) < 0) {
                close_log(rc);
                return -EIO;
        }
@@ -400,6 +390,7 @@ static int activate_luks_headers(struct reenc_ctx *rc)
            (r = crypt_set_data_device(cd, rc->device)))
                goto out;
 
+       log_verbose(_("Activating temporary device using old LUKS header.\n"));
        if ((r = crypt_activate_by_passphrase(cd, rc->header_file_org,
                opt_key_slot, rc->p[rc->keyslot].password, rc->p[rc->keyslot].passwordLen,
                CRYPT_ACTIVATE_READONLY|CRYPT_ACTIVATE_PRIVATE)) < 0)
@@ -410,6 +401,7 @@ static int activate_luks_headers(struct reenc_ctx *rc)
            (r = crypt_set_data_device(cd_new, rc->device)))
                goto out;
 
+       log_verbose(_("Activating temporary device using new LUKS header.\n"));
        if ((r = crypt_activate_by_passphrase(cd_new, rc->header_file_new,
                opt_key_slot, rc->p[rc->keyslot].password, rc->p[rc->keyslot].passwordLen,
                CRYPT_ACTIVATE_SHARED|CRYPT_ACTIVATE_PRIVATE)) < 0)
@@ -629,6 +621,7 @@ static void print_progress(struct reenc_ctx *rc, uint64_t bytes, int final)
        if (!mib)
                return;
 
+       /* FIXME: calculate this from last minute only and remaining space */
        eta = (unsigned long long)(rc->device_size / 1024 / 1024 / mib - tdiff);
 
        /* vt100 code clear line */