tree 9077b4c124506408e448b46be3fdd3d698538180
parent 0af165b9378bb5cb544c26a7936142335d52257b
author Gunnar Mills <gmills@us.ibm.com> 1528140213 -0500
committer Gunnar Mills <gmills@us.ibm.com> 1528982359 -0500

Add IPV4 properties parameter validation

Added parameter validation for the IPV4 properties: IP Address,
Gateway, and Netmask prefix length.
This is important since we delete the IPV4 interface before adding
the new one (i.e. if the add is unsuccessful we are down an IPV4
interface). This validation helps to prevent some of the
unsuccessful adds.

Took the logic from the network manager valid parameter checks:
https://github.com/openbmc/phosphor-networkd/blob/master/util.cpp#L217

Moved "Netmask Prefix Length" to a "number" to do this. It should
have been a number.

Tested: A variety of good and bad values.
Change-Id: Idf4486489097bc426164b9543ea8c05eb54a2bf8
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>