You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
2.5 KiB
Diff
75 lines
2.5 KiB
Diff
From 930e57ecb64bbab75c2b71d0d1ba07451fec4567 Mon Sep 17 00:00:00 2001
|
|
From: Fam Zheng <famcool@gmail.com>
|
|
Date: Tue, 12 Jul 2011 19:56:30 +0800
|
|
Subject: [PATCH 04/12] VMDK: probe for monolithicFlat images
|
|
|
|
Probe as the same behavior as VMware does.
|
|
Recognize image as monolithicFlat descriptor file when the file is text
|
|
and the first effective line (not '#' leaded comment or space line) is
|
|
either 'version=1' or 'version=2'. No space or upper case charactors
|
|
accepted.
|
|
|
|
Signed-off-by: Fam Zheng <famcool@gmail.com>
|
|
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
|
|
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
|
|
---
|
|
block/vmdk.c | 45 +++++++++++++++++++++++++++++++++++++++++++--
|
|
1 file changed, 43 insertions(+), 2 deletions(-)
|
|
|
|
--- a/block/vmdk.c
|
|
+++ b/block/vmdk.c
|
|
@@ -103,10 +103,51 @@ static int vmdk_probe(const uint8_t *buf
|
|
return 0;
|
|
magic = be32_to_cpu(*(uint32_t *)buf);
|
|
if (magic == VMDK3_MAGIC ||
|
|
- magic == VMDK4_MAGIC)
|
|
+ magic == VMDK4_MAGIC) {
|
|
return 100;
|
|
- else
|
|
+ } else {
|
|
+ const char *p = (const char *)buf;
|
|
+ const char *end = p + buf_size;
|
|
+ while (p < end) {
|
|
+ if (*p == '#') {
|
|
+ /* skip comment line */
|
|
+ while (p < end && *p != '\n') {
|
|
+ p++;
|
|
+ }
|
|
+ p++;
|
|
+ continue;
|
|
+ }
|
|
+ if (*p == ' ') {
|
|
+ while (p < end && *p == ' ') {
|
|
+ p++;
|
|
+ }
|
|
+ /* skip '\r' if windows line endings used. */
|
|
+ if (p < end && *p == '\r') {
|
|
+ p++;
|
|
+ }
|
|
+ /* only accept blank lines before 'version=' line */
|
|
+ if (p == end || *p != '\n') {
|
|
+ return 0;
|
|
+ }
|
|
+ p++;
|
|
+ continue;
|
|
+ }
|
|
+ if (end - p >= strlen("version=X\n")) {
|
|
+ if (strncmp("version=1\n", p, strlen("version=1\n")) == 0 ||
|
|
+ strncmp("version=2\n", p, strlen("version=2\n")) == 0) {
|
|
+ return 100;
|
|
+ }
|
|
+ }
|
|
+ if (end - p >= strlen("version=X\r\n")) {
|
|
+ if (strncmp("version=1\r\n", p, strlen("version=1\r\n")) == 0 ||
|
|
+ strncmp("version=2\r\n", p, strlen("version=2\r\n")) == 0) {
|
|
+ return 100;
|
|
+ }
|
|
+ }
|
|
+ return 0;
|
|
+ }
|
|
return 0;
|
|
+ }
|
|
}
|
|
|
|
#define CHECK_CID 1
|