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#! /usr/bin/python -Es # Copyright (C) 2012 Red Hat # see file 'COPYING' for use and warranty information # # setrans is a tool for analyzing process transistions in SELinux policy # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License as # published by the Free Software Foundation; either version 2 of # the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA # 02111-1307 USA # # import sepolicy search = sepolicy.search info = sepolicy.info def get_types(src, tclass, perm, check_bools=False): allows = search([sepolicy.ALLOW], {sepolicy.SOURCE: src, sepolicy.CLASS: tclass, sepolicy.PERMS: perm}) nlist = [] if allows: for i in [y[sepolicy.TARGET] for y in [x for x in allows if set(perm).issubset(x[sepolicy.PERMS]) and (not check_bools or x["enabled"])]]: if i not in nlist: nlist.append(i) return nlist def get_network_connect(src, protocol, perm, check_bools=False): portrecs, portrecsbynum = sepolicy.gen_port_dict() d = {} tlist = get_types(src, "%s_socket" % protocol, [perm], check_bools) if len(tlist) > 0: d[(src, protocol, perm)] = [] for i in tlist: if i == "ephemeral_port_type": if "unreserved_port_type" in tlist: continue i = "ephemeral_port_t" if i == "unreserved_port_t": if "unreserved_port_type" in tlist: continue if "port_t" in tlist: continue if i == "port_t": d[(src, protocol, perm)].append((i, ["all ports with out defined types"])) if i == "port_type": d[(src, protocol, perm)].append((i, ["all ports"])) elif i == "unreserved_port_type": d[(src, protocol, perm)].append((i, ["all ports > 1024"])) elif i == "reserved_port_type": d[(src, protocol, perm)].append((i, ["all ports < 1024"])) elif i == "rpc_port_type": d[(src, protocol, perm)].append((i, ["all ports > 500 and < 1024"])) else: try: d[(src, protocol, perm)].append((i, portrecs[(i, protocol)])) except KeyError: pass return d