Partially working upgrade paths

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The one-way upgrade from Samba3 to Samba4 is now partially working! There are both a web-frontend and a console utility that can do an upgrade, given a libdir (usually /var/lib/samba) and a configuration file (usually in /etc/samba/smb.conf).

Last night, I rewrote most of the conversion code to be in EJS rather then in C. One of the positive things about this is that I can use embedded LDIF inside of the JavaScript code and that I can build on the existing Samba4 provisioning code (which is in EJS as well). Writing EJS wrappers for my existing C code was easier then I had thought.

One of the other things I did today is add a fallback mechanism for ldb_map where it can store the data that could not be mapped. There are now two types of records in ldb_map: those that are partially mapped (mapped, but might have one or two attributes stored in the fallback database) and those that are completely stored in the fallback database.

Below are some screenshots of the upgrade procedure in SWAT: /blog/uploads/screenshots/upgr1.png /blog/uploads/screenshots/upgr2.png /blog/uploads/screenshots/upgr3.png
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