Convert the codomain to a class, and the policy lists that store
codomains to stl containers instead of glibc twalk.
Signed-off-by: John Johansen <john.johansen@canonical.com>
[tyhicks: Merge with dbus changes and process_file_entries() cleanup]
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Acked-by: Steve Beattie <steve@nxnw.org>
The function new_dbus_entry() free()s the conds argument but not the
peer_conds argument.
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Tyler Hicks <tyhicks@canonical.com>
This patch moves the DUP_STRING macro to parser.h and modifies
it to accept a goto error target, that will be jumped to if the
call to strdup(3) fails. It also uses it in additional locations
where copying structures occurs, as well as detecting additional
cases where a structure duplication might have failed but not been
propagated outward.
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Tyler Hicks <tyhicks@canonical.com>
Bug: https://bugs.launchpad.net/bugs/1218099
This patch adds support for expanding variables with dbus rules.
Specifically, they can expanded within the bus, name, path, member,
interface, and peer label fields.
Parser test cases and regression test cases are added as well.
Patch history:
v1: initial version of patch
v2: add equality.sh tests to verify that the results of using
variable expansion is the same as what should be equivalent rules
Signed-off-by: Steve Beattie <sbeattie@ubuntu.com>
Acked-by: Tyler Hicks <tyhicks@canonical.com>
Acked-by: Seth Arnold <seth.arnold@canonical.com>
This patch implements the parsing of DBus rules.
It attempts to catch all corner cases, such as specifying a bind
permission with an interface conditional or specifying a subject name
conditional and a peer name conditional in the same rule.
It introduces the concept of conditional lists to the lexer and parser
in order to handle 'peer=(label=/usr/bin/foo name=com.foo.bar)', since
the existing list support in the lexer only supports a list of values.
The DBus rules are encoded as follows:
bus,name<bind_perm>,peer_label,path,interface,member<rw_perms>
Bind rules stop matching at name<bind_perm>. Note that name is used for
the subject name in bind rules and the peer name in rw rules. The
function new_dbus_entry() is what does the proper sanitization to make
sure that if a name conditional is specified, that it is the subject
name in the case of a bind rule or that it is the peer name in the case
of a rw rule.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Acked-by: Seth Arnold <seth.arnold@canonical.com>
