Add OEM command to request flash size
The BMC flash is `/dev/mtd0` and the size can found in
`/sys/class/mtd/mtd0/size`. This OEM command will request that
information with MTDINFO.
Tested:
Successfully requested the flash size information with ipmitool.
```
cat /sys/class/mtd/mtd0/size
67108864
```
67108864 / 1024 / 1024 = 64MB flash
```
ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x09
79 2b 00 09 00 00 00 04
```
Output in little endian.
0x04000000 -> 67108864
Change-Id: Iec1b33503d1166a42ceef4b8491e5c19c3a077fe
Signed-off-by: Willy Tu <wltu@google.com>
diff --git a/handler.hpp b/handler.hpp
index 2db83df..1a2cbae 100644
--- a/handler.hpp
+++ b/handler.hpp
@@ -74,6 +74,14 @@
std::uint8_t instance) = 0;
/**
+ * Return the flash size of bmc chip.
+ *
+ * @return the flash size of bmc chip
+ * @throw IpmiException on failure.
+ */
+ virtual uint32_t getFlashSize() = 0;
+
+ /**
* Return the name of the machine, parsed from release information.
*
* @return the machine name