Check the return value of malloc() to avoid null pointer reference.
Signed-off-by: Huaxin Lu <luhuaxin1@huawei.com>
Acked-by: James Carter <jwcart2@gmail.com>
When specifying -o or -f more than once, the previous allocations leak.
Found by scan-build.
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Provide the option "-Q" or "--qualified-names" to indicate that the
policy is using qualified names.
Using qualified names means that declaration names can have "dots"
in them, but blocks, blockinherits, blockabstracts, and in-statements
are not allowed in the policy.
The libsepol function cil_set_qualified_names() is called with the
desired value for the CIL db's "qualified_names" field.
Signed-off-by: James Carter <jwcart2@gmail.com>
fread(3) returns zero if |size| is zero. This confuses secilc, and
causes it to fail with a "Failure reading file" error, even though there
is no error.
Add a shortcut that closes and skips an input file if file size is zero.
Signed-off-by: Yi-Yo Chiang <yochiang@google.com>
Add a command-line option -O/--optimize to optimize the final policydb
using sepol_policydb_optimize() before writing it out.
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Fix a situation where the secilc command line tool could return success
even though the compilation failed.
$ secilc /dev/null -o /dev/null -f /dev/null
Failure reading file: /dev/null
$ echo $?
0
Signed-off-by: Nick Kralevich <nnk@google.com>
Modify cil_gen_node() to check to see if the cil_db supports multiple
declarations, and if so, to check whether or not the
repeated symbol is eligible to share the existing, already-stored datum. The
only types considered so far are CIL_TYPE and CIL_TYPEATTRIBUTE, both of
which intall empty datums during AST building, so they automatically return
true.
Test: Build policy with multilpe type and attribute declarations, and
without. Policies are binary-identical.
Signed-off-by: Dan Cashman <dcashman@android.com>
Signed-off-by: James Carter <jwcart2@tycho.nsa.gov>
Added "-G, --expand_generated" option to specify that all automatically
generated attributes should be expanded and removed.
Added "-X, --expand_size <SIZE>" option to specify which attributes
are expanded when building a kernel policy. All attributes that have
less types assigned to it than SIZE will be expanded when writing AV
rules.
Signed-off-by: James Carter <jwcart2@tycho.nsa.gov>
The Android build does not like the symbol versioning introduced
by commit 8147bc7; the build fails with:
host SharedLib: libsepol (out/host/linux-x86/obj/lib/libsepol.so)
prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8//x86_64-linux/bin/ld: error: symbol cil_build_policydb has undefined version
prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8//x86_64-linux/bin/ld: error: symbol cil_build_policydb has undefined version LIBSEPOL_1.1
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Omit the versioned symbols and simply use the current interfaces
when building on Android.
Commit 36f62b7 also broke the Android build by moving secilc out of
libsepol, because the libsepol headers were not installed by the Android.mk
file.
Export the required libsepol headers for use by secilc and adjust secilc
to pick them up from the right location on Android.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Since the secilc compiler is independent of libsepol, move secilc out of
libsepol. Linke secilc dynamically rather than statically with libsepol.
- Move secilc source, test policies, docs, and secilc manpage to secilc
directory.
- Remove unneeded Makefile from libsepol/cil. To build secilc, run make
in the secilc directory.
- Add target to install the secilc binary to /usr/bin/.
- Create an Android makefile for secilc and move secilc out of libsepol
Android makefile.
- Add cil_set_mls to libsepol public API as it is needed by secilc.
- Remove policy.conf from testing since it is no longer used.
Signed-off-by: Yuli Khodorkovskiy <ykhodorkovskiy@tresys.com>
Huaxin Lu
Christian Göttsche
James Carter
Yi-Yo Chiang
Ondrej Mosnacek
Nick Kralevich via Selinux
Dan Cashman
James Carter
Nicolas Iooss
bowgotsai
Stephen Smalley
Yuli Khodorkovskiy