Fix SSP builds (Vladimir Kirillov)

fdoff is descriptive enough

Make fdoffset configurable. Also, enforce that host descriptors
are smaller than the offset.

Use rumphijack_dlsym() to figure out where __sysctl() is during
init. Otherwise powerpc dlsym() DTWT and returns NULL.
(now i have no idea why dlsym() it works from rcinit(), but i'll
opt to not car

Use rumphijack_dlsym() to figure out where __sysctl() is during
init. Otherwise powerpc dlsym() DTWT and returns NULL.
(now i have no idea why dlsym() it works from rcinit(), but i'll
opt to not care)

Hah, only took 15min to debug that crap this time around. I'm
quickly approaching zero-time with it.

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Revert 1.81 and do it in a saner way with an ifdef. Later, when
the naming crisis is resolved, we can probably support rump kernel
quotas from nb5 also.

Make getfh() a pathcall instead of a fhcall. while it does pertain
to file handles, it still gets passed a path and we can DTRT based
on that.

Make this compile/work on NetBSD 5 once again.

Add quotactl(2)

Fix last entries, make it work again.

Add a bunch of process-wide hijack calls. Among other things, it's
now possible to use unmodified userspace binaries (rpcbind, mountd,
nfsd) to start a rump nfs service and mount file systems from i

Add a bunch of process-wide hijack calls. Among other things, it's
now possible to use unmodified userspace binaries (rpcbind, mountd,
nfsd) to start a rump nfs service and mount file systems from it.

pain-rustique:42:~> mount
rumpfs on / type rumpfs (local)
10.1.1.1:/export on /mnt type nfs

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g/c unused global

Enforce that the path=/rump specifier specifies and actual path
prefix and doesn't accept e.g. /rumpdev (only /rump/dev).

Add ``blanket''. It acts like path, except that the prefix does
_not_ get removed if the call goes to the rump namespace.

So, now it's possible to use e.g. tcpdump (and most other utilities
which h

Add ``blanket''. It acts like path, except that the prefix does
_not_ get removed if the call goes to the rump namespace.

So, now it's possible to use e.g. tcpdump (and most other utilities
which hardcore a /dev pathname) on a rump kernel:

golem> setenv RUMPHIJACK blanket=/dev/bpf
golem> tcpdump -n -i virt0
tcpdump: WARNING: SIOCGIFADDR: virt0: Device not configured
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on virt0, link-type EN10MB (Ethernet), capture size 96 bytes
21:55:38.925596 IP 192.168.2.101 > 204.152.190.12: ICMP echo request, id 47811, seq 0, length 64
21:55:39.095596 IP 204.152.190.12 > 192.168.2.101: ICMP echo reply, id 47811, seq 0, length 64

(if you additionally set socket=all in RUMPHIJACK, tcpdump doesn't
whine about the "not configured" interface)

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another comment

comment

make compiler sign-happy

A simple dup2-enforced affine transformation isn't enough when
dealing with dup2() from a rump kernel fd to a host kernel fd.
Consider:

s1 = socket();
s2 = socket();
dup2(s2, 0);

Instead, maintain

A simple dup2-enforced affine transformation isn't enough when
dealing with dup2() from a rump kernel fd to a host kernel fd.
Consider:

s1 = socket();
s2 = socket();
dup2(s2, 0);

Instead, maintain a real mapping table (and get on my knees and
pray i don't have to touch this hair-splitting code ever again).

Apparently bourne shell scripts from a rump kernel fs work now
(sh script.sh; ./script.sh doesn't work for obvious "IT'S THE WRONG
FS NAMESPACE" reasons). No test regressions either, so I'm a
happy camper.

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make error messages sensible. from uwe

whoops, didn't mean to delete futimes in previous. also from riz

support mknod. from riz

Make the rumphijack dlsym trampoline call from rumpclient a "real"
function call instead of a call through a function pointer.
Apparently powerpc ld.elf_so gets __hackish_return_address() wrong
if th

Make the rumphijack dlsym trampoline call from rumpclient a "real"
function call instead of a call through a function pointer.
Apparently powerpc ld.elf_so gets __hackish_return_address() wrong
if the call is done through a function pointer (digging deeper into
that stuff is beyond my interest).

Thanks to riz for providing access to a macppc for debugging.
Unthanks to the broken toolchain in the default installation which
wasted approximately 4 hours of time last night.

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Return value audit: properly set errno and return -1.
Fixes at least cross-kernel mv(1).

+access(2)

Put the dlsym-from-this-object trampoline into a separate source
module which is compiled -fno-optimize-sibling-calls instead of
trying to fool the optimizer in various ways in the trampoline.

thank

Put the dlsym-from-this-object trampoline into a separate source
module which is compiled -fno-optimize-sibling-calls instead of
trying to fool the optimizer in various ways in the trampoline.

thanks to yamt for the tip

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If minfd for F_DUPFD is >= hijackoff, assume it means a minimum
value in the rump kernel and adjust accordingly.