an efi_devdesc structure. When we're netbooting, f->f_devdata holds
the address of the network socket variable. Dereferencing this caused
some very unpredictable behaviour, including proper functioning.
So, as a sanity check, we first make sure f->f_dev points to our
own devsw. If not, the open will fail before we use f->f_devdata.
This solves the netboot hangs I invariably got whenever I used the
latest toolchain to compile the EFI loader.
layer to signal transmission of the packet. This resolves the
problem I'm seeing that an immediate call to net->Receive
after calling net->Transmit returns EFI_DEVICE_ERROR. This
condition seems to be sufficiently persistent that BOOTP and
RARP fail.
o While here, unify all functions to have 'nif' defined. Some
have it as arguments. The others now have them as locals. We
now always get the protocol interface by using the 'nif' var.
The current status of netbooting is that even though we now reliably
have BOOTP working (again), opening a file (ie loading a kernel)
across the network causes the loader to hang. I'm working on that now.
(I'll be we know which compiler and platform they developed this on...)
Minimally change them to C89 comments to make GCC happy. (this is kinda funny
as the file has piece derived from FreeBDS 3.2)
Also fix FreeBSD id style.
page of the image to load section headers and if we let the text section
start at zero, it corrupts the section table when its loaded. With this
change, the loader gets as far as the 'ok' prompt.
