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Now that the code does not refer to any libvirt headers,
except internal.h macros, it does not need to link to
any libvirt code, nor gnulib either. The only thing it
needs is yajl.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The virt-login-shell setuid program is now a tiny piece of code
that only uses standard libc functions, and santizes the execution
environment before invoking the real virt-login-shell-helper.
The latter is thus able to use the normal libvirt.so build,
allowing us to delete the special cut down setuid library build.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The previous bump to 4.4 was done in:
commit 24241c236e
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Wed Jul 5 10:35:32 2017 +0100
Require use of GCC 4.4 or CLang compilers
with 4.4 picked due to RHEL-6. Since we dropped RHEL-6, the
next oldest distro is RHEL-7 (4.8.5), and thus we pick 4.8
as the new min.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit 93fdc9e0b0.
Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.
https://bugzilla.redhat.com/show_bug.cgi?id=1614569
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit 1caf844160.
Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.
https://bugzilla.redhat.com/show_bug.cgi?id=1614569
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
There is no code using WITH_JANSSON yet, but once we add it,
it should not be compiled for the setuid_rpc_client.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Right-aligning backslashes when defining macros or using complex
commands in Makefiles looks cute, but as soon as any changes is
required to the code you end up with either distractingly broken
alignment or unnecessarily big diffs where most of the changes
are just pushing all backslashes a few characters to one side.
Generated using
$ git grep -El '[[:blank:]][[:blank:]]\\$' | \
grep -E '*\.([chx]|am|mk)$$' | \
while read f; do \
sed -Ei 's/[[:blank:]]*[[:blank:]]\\$/ \\/g' "$f"; \
done
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
We only ever test libvirt with GCC or CLang which provides a
GCC compatible compilation environment. Between them, these
compilers cover every important operating system platform,
even Windows.
Mandate their use to make it explicit that we don't care about
compilers like Microsoft VCC or other UNIX vendor C compilers.
GCC 4.4 was picked as the baseline, since RHEL-6 ships 4.4.7
and that lets us remove a large set of checks. There is a slight
issue that CLang reports itself as GCC 4.2, so we must also check
if __clang__ is defined. We could check a particular CLang version
too, but that would require someone to figure out a suitable min
version which is fun because OS-X reports totally different CLang
version numbers from CLang builds on Linux/BSD
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Back in this commit:
commit b436a8ae5c
Author: Fabian Freyer <fabian.freyer@physik.tu-berlin.de>
Date: Thu Jun 9 00:50:35 2016 +0000
gnulib: add getopt module
config-post.h was modified to define __GNUC_PREREQ, but the
original definition was never removed from internal.h, and
that is now dead code since config.h is always the first file
included.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Namely, virFileGetACLs, virFileSetACLs, virFileFreeACLs and
virFileCopyACLs. These functions are going to be required when we
are creating /dev for qemu. We have copy anything that's in
host's /dev exactly as is. Including ACLs.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Implement a new libssh transport, which uses libssh to communicate with
remote hosts, and add all the build system stuff (search of libssh,
private symbols, etc) to built it.
This new transport supports all the common ssh authentication methods,
making use of libvirt's auth callbacks for interaction with the user.
Unconditionally use gnulib's getopt module. This is needed by the bhyve driver
to provide a reentrant interface for getopt.
Several gnulib headers rely on features.h being included by ctype.h to provide
__GNUC_PREREQ, but on systems without glibc, this is not provided. In these
cases __GNUC_PREREQ gets redefined to 0, which causes build errors from checks
in src/internal.h.
Therefore, define __GNUC_PREREQ as early as possible. config-post.h is probably
the first header that is included, before any other headers.
Add the virDomainLxcEnterCGroup API to the libvirt-lxc.so
file. This method moves the calling process into the cgroups
associated with the container.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The implementation is pretty straightforward. Moreover, because
of the nature of things, gethostbyname_r and gethostbyname2_r can
be implemented at the same time too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
On systems where gnutls uses libgcrypt, I'm seeing the following
build failure
libvirt.c:314: error: variable 'virTLSThreadImpl' has initializer but incomplete type
libvirt.c:319: error: 'GCRY_THREAD_OPTION_PTHREAD' undeclared here (not in a function)
...
Fix by undefining WITH_GNUTLS_GCRYPT in config-post.h
The libvirt.so library has far too many library deps to allow
linking against it from setuid programs. Those libraries can
do stuff in __attribute__((constructor) functions which is
not setuid safe.
The virt-login-shell needs to link directly against individual
files that it uses, with all library deps turned off except
for libxml2 and libselinux.
Create a libvirt-setuid-rpc-client.la library which is linked
to by virt-login-shell. A config-post.h file allows this library
to disable all external deps except libselinux and libxml2.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
