* [PATCH] semanage: add auditing of changes in records
@ 2016-07-26 15:15 ` Miroslav Vadkerti
0 siblings, 0 replies; 6+ messages in thread
From: Miroslav Vadkerti @ 2016-07-26 15:15 UTC (permalink / raw)
To: selinux; +Cc: linux-audit
Common Criteria requirement FMT_MSA.1 needs any configuration change
that affect enforcement of policy to be audited. This patch adds
auditing of changes in security context mappings for network ports,
interfaces, nodes and file contexts.
A new function log_change is introduced that audits additions,
modification and removal of the mappings via the USER_MAC_CONFIG_CHANGE
audit event.
The format of the audit events was discussed with the audit userspace
maintainer.
This patch resolves: https://bugzilla.redhat.com/show_bug.cgi?id=829175
Signed-off-by: Miroslav Vadkerti <mvadkert@redhat.com>
---
policycoreutils/semanage/seobject.py | 75 ++++++++++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)
diff --git a/policycoreutils/semanage/seobject.py b/policycoreutils/semanage/seobject.py
index 3b0b108..7d6caa3 100644
--- a/policycoreutils/semanage/seobject.py
+++ b/policycoreutils/semanage/seobject.py
@@ -82,6 +82,21 @@ file_type_str_to_option = {"all files": "a",
"socket file": "s",
"symbolic link": "l",
"named pipe": "p"}
+
+proto_to_audit = {"tcp": 17,
+ "udp": 6,
+ "ipv4": 4,
+ "ipv6": 41}
+
+ftype_to_audit = {"": "any",
+ "b": "block",
+ "c": "char",
+ "d": "dir",
+ "f": "file",
+ "l": "symlink",
+ "p": "pipe",
+ "s": "socket"}
+
try:
import audit
@@ -90,6 +105,7 @@ try:
def __init__(self):
self.audit_fd = audit.audit_open()
self.log_list = []
+ self.log_change_list = []
def log(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
@@ -109,10 +125,17 @@ try:
def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
self.log_list.append([self.audit_fd, audit.AUDIT_ROLE_REMOVE, sys.argv[0], str(msg), name, 0, sename, serole, serange, oldsename, oldserole, oldserange, "", "", ""])
+ def log_change(self, msg):
+ self.log_change_list.append([self.audit_fd, audit.AUDIT_USER_MAC_CONFIG_CHANGE, str(msg), "semanage", "", "", ""])
+
def commit(self, success):
for l in self.log_list:
audit.audit_log_semanage_message(*(l + [success]))
+ for l in self.log_change_list:
+ audit.audit_log_user_comm_message(*(l + [success]))
+
self.log_list = []
+ self.log_change_list = []
except:
class logger:
@@ -138,6 +161,9 @@ except:
def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
self.log(msg, name, sename, serole, serange, oldsename, oldserole, oldserange)
+ def log_change(self, msg):
+ self.log_list.append(" %s" % msg)
+
def commit(self, success):
if success == 1:
message = "Successful: "
@@ -155,6 +181,9 @@ class nulllogger:
def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
pass
+ def log_change(self, msg):
+ pass
+
def commit(self, success):
pass
@@ -1109,6 +1138,8 @@ class portRecords(semanageRecords):
semanage_port_key_free(k)
semanage_port_free(p)
+ self.mylog.log_change("resrc=port op=add lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", type, serange))
+
def add(self, port, proto, serange, type):
self.begin()
self.__add(port, proto, serange, type)
@@ -1150,6 +1181,8 @@ class portRecords(semanageRecords):
semanage_port_key_free(k)
semanage_port_free(p)
+ self.mylog.log_change("resrc=port op=modify lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", setype, serange))
+
def modify(self, port, proto, serange, setype):
self.begin()
self.__modify(port, proto, serange, setype)
@@ -1168,6 +1201,7 @@ class portRecords(semanageRecords):
low = semanage_port_get_low(port)
high = semanage_port_get_high(port)
port_str = "%s-%s" % (low, high)
+
(k, proto_d, low, high) = self.__genkey(port_str, proto_str)
if rc < 0:
raise ValueError(_("Could not create a key for %s") % port_str)
@@ -1177,6 +1211,11 @@ class portRecords(semanageRecords):
raise ValueError(_("Could not delete the port %s") % port_str)
semanage_port_key_free(k)
+ if low == high:
+ port_str = low
+
+ self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port_str, proto_to_audit[proto_str]))
+
self.commit()
def __delete(self, port, proto):
@@ -1199,6 +1238,8 @@ class portRecords(semanageRecords):
semanage_port_key_free(k)
+ self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port, proto_to_audit[proto]))
+
def delete(self, port, proto):
self.begin()
self.__delete(port, proto)
@@ -1380,6 +1421,8 @@ class nodeRecords(semanageRecords):
semanage_node_key_free(k)
semanage_node_free(node)
+ self.mylog.log_change("resrc=node op=add laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", ctype, serange))
+
def add(self, addr, mask, proto, serange, ctype):
self.begin()
self.__add(addr, mask, proto, serange, ctype)
@@ -1421,6 +1464,8 @@ class nodeRecords(semanageRecords):
semanage_node_key_free(k)
semanage_node_free(node)
+ self.mylog.log_change("resrc=node op=modify laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", setype, serange))
+
def modify(self, addr, mask, proto, serange, setype):
self.begin()
self.__modify(addr, mask, proto, serange, setype)
@@ -1452,6 +1497,8 @@ class nodeRecords(semanageRecords):
semanage_node_key_free(k)
+ self.mylog.log_change("resrc=node op=delete laddr=%s netmask=%s proto=%s" % (addr, mask, proto_to_audit[self.protocol[proto]]))
+
def delete(self, addr, mask, proto):
self.begin()
self.__delete(addr, mask, proto)
@@ -1581,6 +1628,8 @@ class interfaceRecords(semanageRecords):
semanage_iface_key_free(k)
semanage_iface_free(iface)
+ self.mylog.log_change("resrc=interface op=add netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", ctype, serange))
+
def add(self, interface, serange, ctype):
self.begin()
self.__add(interface, serange, ctype)
@@ -1618,6 +1667,8 @@ class interfaceRecords(semanageRecords):
semanage_iface_key_free(k)
semanage_iface_free(iface)
+ self.mylog.log_change("resrc=interface op=modify netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", setype, serange))
+
def modify(self, interface, serange, setype):
self.begin()
self.__modify(interface, serange, setype)
@@ -1646,6 +1697,8 @@ class interfaceRecords(semanageRecords):
semanage_iface_key_free(k)
+ self.mylog.log_change("resrc=interface op=delete netif=%s" % interface)
+
def delete(self, interface):
self.begin()
self.__delete(interface)
@@ -1775,6 +1828,8 @@ class fcontextRecords(semanageRecords):
if i.startswith(target + "/"):
raise ValueError(_("File spec %s conflicts with equivalency rule '%s %s'") % (target, i, fdict[i]))
+ self.mylog.log_change("resrc=fcontext op=add-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
+
self.equiv[target] = substitute
self.equal_ind = True
self.commit()
@@ -1785,6 +1840,9 @@ class fcontextRecords(semanageRecords):
raise ValueError(_("Equivalence class for %s does not exists") % target)
self.equiv[target] = substitute
self.equal_ind = True
+
+ self.mylog.log_change("resrc=fcontext op=modify-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
+
self.commit()
def createcon(self, target, seuser="system_u"):
@@ -1879,6 +1937,11 @@ class fcontextRecords(semanageRecords):
semanage_fcontext_key_free(k)
semanage_fcontext_free(fcontext)
+ if not seuser:
+ seuser = "system_u"
+
+ self.mylog.log_change("resrc=fcontext op=add %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
+
def add(self, target, type, ftype="", serange="", seuser="system_u"):
self.begin()
self.__add(target, type, ftype, serange, seuser)
@@ -1939,6 +2002,11 @@ class fcontextRecords(semanageRecords):
semanage_fcontext_key_free(k)
semanage_fcontext_free(fcontext)
+ if not seuser:
+ seuser = "system_u"
+
+ self.mylog.log_change("resrc=fcontext op=modify %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
+
def modify(self, target, setype, ftype, serange, seuser):
self.begin()
self.__modify(target, setype, ftype, serange, seuser)
@@ -1964,6 +2032,8 @@ class fcontextRecords(semanageRecords):
raise ValueError(_("Could not delete the file context %s") % target)
semanage_fcontext_key_free(k)
+ self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype_str]))
+
self.equiv = {}
self.equal_ind = True
self.commit()
@@ -1972,6 +2042,9 @@ class fcontextRecords(semanageRecords):
if target in self.equiv.keys():
self.equiv.pop(target)
self.equal_ind = True
+
+ self.mylog.log_change("resrc=fcontext op=delete-equal %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
+
return
(rc, k) = semanage_fcontext_key_create(self.sh, target, file_types[ftype])
@@ -1996,6 +2069,8 @@ class fcontextRecords(semanageRecords):
semanage_fcontext_key_free(k)
+ self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
+
def delete(self, target, ftype):
self.begin()
self.__delete(target, ftype)
--
1.8.3.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH] semanage: add auditing of changes in records
@ 2016-08-09 20:21 ` James Carter
0 siblings, 0 replies; 6+ messages in thread
From: James Carter @ 2016-08-09 20:21 UTC (permalink / raw)
To: Miroslav Vadkerti, selinux; +Cc: linux-audit
On 07/26/2016 11:15 AM, Miroslav Vadkerti wrote:
> Common Criteria requirement FMT_MSA.1 needs any configuration change
> that affect enforcement of policy to be audited. This patch adds
> auditing of changes in security context mappings for network ports,
> interfaces, nodes and file contexts.
>
> A new function log_change is introduced that audits additions,
> modification and removal of the mappings via the USER_MAC_CONFIG_CHANGE
> audit event.
>
> The format of the audit events was discussed with the audit userspace
> maintainer.
>
> This patch resolves: https://bugzilla.redhat.com/show_bug.cgi?id=829175
>
> Signed-off-by: Miroslav Vadkerti <mvadkert@redhat.com>
Applied.
Thanks,
Jim
> ---
> policycoreutils/semanage/seobject.py | 75 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 75 insertions(+)
>
> diff --git a/policycoreutils/semanage/seobject.py b/policycoreutils/semanage/seobject.py
> index 3b0b108..7d6caa3 100644
> --- a/policycoreutils/semanage/seobject.py
> +++ b/policycoreutils/semanage/seobject.py
> @@ -82,6 +82,21 @@ file_type_str_to_option = {"all files": "a",
> "socket file": "s",
> "symbolic link": "l",
> "named pipe": "p"}
> +
> +proto_to_audit = {"tcp": 17,
> + "udp": 6,
> + "ipv4": 4,
> + "ipv6": 41}
> +
> +ftype_to_audit = {"": "any",
> + "b": "block",
> + "c": "char",
> + "d": "dir",
> + "f": "file",
> + "l": "symlink",
> + "p": "pipe",
> + "s": "socket"}
> +
> try:
> import audit
>
> @@ -90,6 +105,7 @@ try:
> def __init__(self):
> self.audit_fd = audit.audit_open()
> self.log_list = []
> + self.log_change_list = []
>
> def log(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
>
> @@ -109,10 +125,17 @@ try:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> self.log_list.append([self.audit_fd, audit.AUDIT_ROLE_REMOVE, sys.argv[0], str(msg), name, 0, sename, serole, serange, oldsename, oldserole, oldserange, "", "", ""])
>
> + def log_change(self, msg):
> + self.log_change_list.append([self.audit_fd, audit.AUDIT_USER_MAC_CONFIG_CHANGE, str(msg), "semanage", "", "", ""])
> +
> def commit(self, success):
> for l in self.log_list:
> audit.audit_log_semanage_message(*(l + [success]))
> + for l in self.log_change_list:
> + audit.audit_log_user_comm_message(*(l + [success]))
> +
> self.log_list = []
> + self.log_change_list = []
> except:
> class logger:
>
> @@ -138,6 +161,9 @@ except:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> self.log(msg, name, sename, serole, serange, oldsename, oldserole, oldserange)
>
> + def log_change(self, msg):
> + self.log_list.append(" %s" % msg)
> +
> def commit(self, success):
> if success == 1:
> message = "Successful: "
> @@ -155,6 +181,9 @@ class nulllogger:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> pass
>
> + def log_change(self, msg):
> + pass
> +
> def commit(self, success):
> pass
>
> @@ -1109,6 +1138,8 @@ class portRecords(semanageRecords):
> semanage_port_key_free(k)
> semanage_port_free(p)
>
> + self.mylog.log_change("resrc=port op=add lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", type, serange))
> +
> def add(self, port, proto, serange, type):
> self.begin()
> self.__add(port, proto, serange, type)
> @@ -1150,6 +1181,8 @@ class portRecords(semanageRecords):
> semanage_port_key_free(k)
> semanage_port_free(p)
>
> + self.mylog.log_change("resrc=port op=modify lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", setype, serange))
> +
> def modify(self, port, proto, serange, setype):
> self.begin()
> self.__modify(port, proto, serange, setype)
> @@ -1168,6 +1201,7 @@ class portRecords(semanageRecords):
> low = semanage_port_get_low(port)
> high = semanage_port_get_high(port)
> port_str = "%s-%s" % (low, high)
> +
> (k, proto_d, low, high) = self.__genkey(port_str, proto_str)
> if rc < 0:
> raise ValueError(_("Could not create a key for %s") % port_str)
> @@ -1177,6 +1211,11 @@ class portRecords(semanageRecords):
> raise ValueError(_("Could not delete the port %s") % port_str)
> semanage_port_key_free(k)
>
> + if low == high:
> + port_str = low
> +
> + self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port_str, proto_to_audit[proto_str]))
> +
> self.commit()
>
> def __delete(self, port, proto):
> @@ -1199,6 +1238,8 @@ class portRecords(semanageRecords):
>
> semanage_port_key_free(k)
>
> + self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port, proto_to_audit[proto]))
> +
> def delete(self, port, proto):
> self.begin()
> self.__delete(port, proto)
> @@ -1380,6 +1421,8 @@ class nodeRecords(semanageRecords):
> semanage_node_key_free(k)
> semanage_node_free(node)
>
> + self.mylog.log_change("resrc=node op=add laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", ctype, serange))
> +
> def add(self, addr, mask, proto, serange, ctype):
> self.begin()
> self.__add(addr, mask, proto, serange, ctype)
> @@ -1421,6 +1464,8 @@ class nodeRecords(semanageRecords):
> semanage_node_key_free(k)
> semanage_node_free(node)
>
> + self.mylog.log_change("resrc=node op=modify laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", setype, serange))
> +
> def modify(self, addr, mask, proto, serange, setype):
> self.begin()
> self.__modify(addr, mask, proto, serange, setype)
> @@ -1452,6 +1497,8 @@ class nodeRecords(semanageRecords):
>
> semanage_node_key_free(k)
>
> + self.mylog.log_change("resrc=node op=delete laddr=%s netmask=%s proto=%s" % (addr, mask, proto_to_audit[self.protocol[proto]]))
> +
> def delete(self, addr, mask, proto):
> self.begin()
> self.__delete(addr, mask, proto)
> @@ -1581,6 +1628,8 @@ class interfaceRecords(semanageRecords):
> semanage_iface_key_free(k)
> semanage_iface_free(iface)
>
> + self.mylog.log_change("resrc=interface op=add netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", ctype, serange))
> +
> def add(self, interface, serange, ctype):
> self.begin()
> self.__add(interface, serange, ctype)
> @@ -1618,6 +1667,8 @@ class interfaceRecords(semanageRecords):
> semanage_iface_key_free(k)
> semanage_iface_free(iface)
>
> + self.mylog.log_change("resrc=interface op=modify netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", setype, serange))
> +
> def modify(self, interface, serange, setype):
> self.begin()
> self.__modify(interface, serange, setype)
> @@ -1646,6 +1697,8 @@ class interfaceRecords(semanageRecords):
>
> semanage_iface_key_free(k)
>
> + self.mylog.log_change("resrc=interface op=delete netif=%s" % interface)
> +
> def delete(self, interface):
> self.begin()
> self.__delete(interface)
> @@ -1775,6 +1828,8 @@ class fcontextRecords(semanageRecords):
> if i.startswith(target + "/"):
> raise ValueError(_("File spec %s conflicts with equivalency rule '%s %s'") % (target, i, fdict[i]))
>
> + self.mylog.log_change("resrc=fcontext op=add-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
> +
> self.equiv[target] = substitute
> self.equal_ind = True
> self.commit()
> @@ -1785,6 +1840,9 @@ class fcontextRecords(semanageRecords):
> raise ValueError(_("Equivalence class for %s does not exists") % target)
> self.equiv[target] = substitute
> self.equal_ind = True
> +
> + self.mylog.log_change("resrc=fcontext op=modify-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
> +
> self.commit()
>
> def createcon(self, target, seuser="system_u"):
> @@ -1879,6 +1937,11 @@ class fcontextRecords(semanageRecords):
> semanage_fcontext_key_free(k)
> semanage_fcontext_free(fcontext)
>
> + if not seuser:
> + seuser = "system_u"
> +
> + self.mylog.log_change("resrc=fcontext op=add %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
> +
> def add(self, target, type, ftype="", serange="", seuser="system_u"):
> self.begin()
> self.__add(target, type, ftype, serange, seuser)
> @@ -1939,6 +2002,11 @@ class fcontextRecords(semanageRecords):
> semanage_fcontext_key_free(k)
> semanage_fcontext_free(fcontext)
>
> + if not seuser:
> + seuser = "system_u"
> +
> + self.mylog.log_change("resrc=fcontext op=modify %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
> +
> def modify(self, target, setype, ftype, serange, seuser):
> self.begin()
> self.__modify(target, setype, ftype, serange, seuser)
> @@ -1964,6 +2032,8 @@ class fcontextRecords(semanageRecords):
> raise ValueError(_("Could not delete the file context %s") % target)
> semanage_fcontext_key_free(k)
>
> + self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype_str]))
> +
> self.equiv = {}
> self.equal_ind = True
> self.commit()
> @@ -1972,6 +2042,9 @@ class fcontextRecords(semanageRecords):
> if target in self.equiv.keys():
> self.equiv.pop(target)
> self.equal_ind = True
> +
> + self.mylog.log_change("resrc=fcontext op=delete-equal %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
> +
> return
>
> (rc, k) = semanage_fcontext_key_create(self.sh, target, file_types[ftype])
> @@ -1996,6 +2069,8 @@ class fcontextRecords(semanageRecords):
>
> semanage_fcontext_key_free(k)
>
> + self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
> +
> def delete(self, target, ftype):
> self.begin()
> self.__delete(target, ftype)
>
--
James Carter <jwcart2@tycho.nsa.gov>
National Security Agency
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH] semanage: add auditing of changes in records
@ 2016-08-09 20:21 ` James Carter
0 siblings, 0 replies; 6+ messages in thread
From: James Carter @ 2016-08-09 20:21 UTC (permalink / raw)
To: Miroslav Vadkerti, selinux-+05T5uksL2qpZYMLLGbcSA
Cc: linux-audit-H+wXaHxf7aLQT0dZR+AlfA
On 07/26/2016 11:15 AM, Miroslav Vadkerti wrote:
> Common Criteria requirement FMT_MSA.1 needs any configuration change
> that affect enforcement of policy to be audited. This patch adds
> auditing of changes in security context mappings for network ports,
> interfaces, nodes and file contexts.
>
> A new function log_change is introduced that audits additions,
> modification and removal of the mappings via the USER_MAC_CONFIG_CHANGE
> audit event.
>
> The format of the audit events was discussed with the audit userspace
> maintainer.
>
> This patch resolves: https://bugzilla.redhat.com/show_bug.cgi?id=829175
>
> Signed-off-by: Miroslav Vadkerti <mvadkert-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Applied.
Thanks,
Jim
> ---
> policycoreutils/semanage/seobject.py | 75 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 75 insertions(+)
>
> diff --git a/policycoreutils/semanage/seobject.py b/policycoreutils/semanage/seobject.py
> index 3b0b108..7d6caa3 100644
> --- a/policycoreutils/semanage/seobject.py
> +++ b/policycoreutils/semanage/seobject.py
> @@ -82,6 +82,21 @@ file_type_str_to_option = {"all files": "a",
> "socket file": "s",
> "symbolic link": "l",
> "named pipe": "p"}
> +
> +proto_to_audit = {"tcp": 17,
> + "udp": 6,
> + "ipv4": 4,
> + "ipv6": 41}
> +
> +ftype_to_audit = {"": "any",
> + "b": "block",
> + "c": "char",
> + "d": "dir",
> + "f": "file",
> + "l": "symlink",
> + "p": "pipe",
> + "s": "socket"}
> +
> try:
> import audit
>
> @@ -90,6 +105,7 @@ try:
> def __init__(self):
> self.audit_fd = audit.audit_open()
> self.log_list = []
> + self.log_change_list = []
>
> def log(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
>
> @@ -109,10 +125,17 @@ try:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> self.log_list.append([self.audit_fd, audit.AUDIT_ROLE_REMOVE, sys.argv[0], str(msg), name, 0, sename, serole, serange, oldsename, oldserole, oldserange, "", "", ""])
>
> + def log_change(self, msg):
> + self.log_change_list.append([self.audit_fd, audit.AUDIT_USER_MAC_CONFIG_CHANGE, str(msg), "semanage", "", "", ""])
> +
> def commit(self, success):
> for l in self.log_list:
> audit.audit_log_semanage_message(*(l + [success]))
> + for l in self.log_change_list:
> + audit.audit_log_user_comm_message(*(l + [success]))
> +
> self.log_list = []
> + self.log_change_list = []
> except:
> class logger:
>
> @@ -138,6 +161,9 @@ except:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> self.log(msg, name, sename, serole, serange, oldsename, oldserole, oldserange)
>
> + def log_change(self, msg):
> + self.log_list.append(" %s" % msg)
> +
> def commit(self, success):
> if success == 1:
> message = "Successful: "
> @@ -155,6 +181,9 @@ class nulllogger:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> pass
>
> + def log_change(self, msg):
> + pass
> +
> def commit(self, success):
> pass
>
> @@ -1109,6 +1138,8 @@ class portRecords(semanageRecords):
> semanage_port_key_free(k)
> semanage_port_free(p)
>
> + self.mylog.log_change("resrc=port op=add lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", type, serange))
> +
> def add(self, port, proto, serange, type):
> self.begin()
> self.__add(port, proto, serange, type)
> @@ -1150,6 +1181,8 @@ class portRecords(semanageRecords):
> semanage_port_key_free(k)
> semanage_port_free(p)
>
> + self.mylog.log_change("resrc=port op=modify lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", setype, serange))
> +
> def modify(self, port, proto, serange, setype):
> self.begin()
> self.__modify(port, proto, serange, setype)
> @@ -1168,6 +1201,7 @@ class portRecords(semanageRecords):
> low = semanage_port_get_low(port)
> high = semanage_port_get_high(port)
> port_str = "%s-%s" % (low, high)
> +
> (k, proto_d, low, high) = self.__genkey(port_str, proto_str)
> if rc < 0:
> raise ValueError(_("Could not create a key for %s") % port_str)
> @@ -1177,6 +1211,11 @@ class portRecords(semanageRecords):
> raise ValueError(_("Could not delete the port %s") % port_str)
> semanage_port_key_free(k)
>
> + if low == high:
> + port_str = low
> +
> + self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port_str, proto_to_audit[proto_str]))
> +
> self.commit()
>
> def __delete(self, port, proto):
> @@ -1199,6 +1238,8 @@ class portRecords(semanageRecords):
>
> semanage_port_key_free(k)
>
> + self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port, proto_to_audit[proto]))
> +
> def delete(self, port, proto):
> self.begin()
> self.__delete(port, proto)
> @@ -1380,6 +1421,8 @@ class nodeRecords(semanageRecords):
> semanage_node_key_free(k)
> semanage_node_free(node)
>
> + self.mylog.log_change("resrc=node op=add laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", ctype, serange))
> +
> def add(self, addr, mask, proto, serange, ctype):
> self.begin()
> self.__add(addr, mask, proto, serange, ctype)
> @@ -1421,6 +1464,8 @@ class nodeRecords(semanageRecords):
> semanage_node_key_free(k)
> semanage_node_free(node)
>
> + self.mylog.log_change("resrc=node op=modify laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", setype, serange))
> +
> def modify(self, addr, mask, proto, serange, setype):
> self.begin()
> self.__modify(addr, mask, proto, serange, setype)
> @@ -1452,6 +1497,8 @@ class nodeRecords(semanageRecords):
>
> semanage_node_key_free(k)
>
> + self.mylog.log_change("resrc=node op=delete laddr=%s netmask=%s proto=%s" % (addr, mask, proto_to_audit[self.protocol[proto]]))
> +
> def delete(self, addr, mask, proto):
> self.begin()
> self.__delete(addr, mask, proto)
> @@ -1581,6 +1628,8 @@ class interfaceRecords(semanageRecords):
> semanage_iface_key_free(k)
> semanage_iface_free(iface)
>
> + self.mylog.log_change("resrc=interface op=add netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", ctype, serange))
> +
> def add(self, interface, serange, ctype):
> self.begin()
> self.__add(interface, serange, ctype)
> @@ -1618,6 +1667,8 @@ class interfaceRecords(semanageRecords):
> semanage_iface_key_free(k)
> semanage_iface_free(iface)
>
> + self.mylog.log_change("resrc=interface op=modify netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", setype, serange))
> +
> def modify(self, interface, serange, setype):
> self.begin()
> self.__modify(interface, serange, setype)
> @@ -1646,6 +1697,8 @@ class interfaceRecords(semanageRecords):
>
> semanage_iface_key_free(k)
>
> + self.mylog.log_change("resrc=interface op=delete netif=%s" % interface)
> +
> def delete(self, interface):
> self.begin()
> self.__delete(interface)
> @@ -1775,6 +1828,8 @@ class fcontextRecords(semanageRecords):
> if i.startswith(target + "/"):
> raise ValueError(_("File spec %s conflicts with equivalency rule '%s %s'") % (target, i, fdict[i]))
>
> + self.mylog.log_change("resrc=fcontext op=add-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
> +
> self.equiv[target] = substitute
> self.equal_ind = True
> self.commit()
> @@ -1785,6 +1840,9 @@ class fcontextRecords(semanageRecords):
> raise ValueError(_("Equivalence class for %s does not exists") % target)
> self.equiv[target] = substitute
> self.equal_ind = True
> +
> + self.mylog.log_change("resrc=fcontext op=modify-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
> +
> self.commit()
>
> def createcon(self, target, seuser="system_u"):
> @@ -1879,6 +1937,11 @@ class fcontextRecords(semanageRecords):
> semanage_fcontext_key_free(k)
> semanage_fcontext_free(fcontext)
>
> + if not seuser:
> + seuser = "system_u"
> +
> + self.mylog.log_change("resrc=fcontext op=add %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
> +
> def add(self, target, type, ftype="", serange="", seuser="system_u"):
> self.begin()
> self.__add(target, type, ftype, serange, seuser)
> @@ -1939,6 +2002,11 @@ class fcontextRecords(semanageRecords):
> semanage_fcontext_key_free(k)
> semanage_fcontext_free(fcontext)
>
> + if not seuser:
> + seuser = "system_u"
> +
> + self.mylog.log_change("resrc=fcontext op=modify %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
> +
> def modify(self, target, setype, ftype, serange, seuser):
> self.begin()
> self.__modify(target, setype, ftype, serange, seuser)
> @@ -1964,6 +2032,8 @@ class fcontextRecords(semanageRecords):
> raise ValueError(_("Could not delete the file context %s") % target)
> semanage_fcontext_key_free(k)
>
> + self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype_str]))
> +
> self.equiv = {}
> self.equal_ind = True
> self.commit()
> @@ -1972,6 +2042,9 @@ class fcontextRecords(semanageRecords):
> if target in self.equiv.keys():
> self.equiv.pop(target)
> self.equal_ind = True
> +
> + self.mylog.log_change("resrc=fcontext op=delete-equal %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
> +
> return
>
> (rc, k) = semanage_fcontext_key_create(self.sh, target, file_types[ftype])
> @@ -1996,6 +2069,8 @@ class fcontextRecords(semanageRecords):
>
> semanage_fcontext_key_free(k)
>
> + self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
> +
> def delete(self, target, ftype):
> self.begin()
> self.__delete(target, ftype)
>
--
James Carter <jwcart2-+05T5uksL2qpZYMLLGbcSA@public.gmane.org>
National Security Agency
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] semanage: add auditing of changes in records
@ 2016-08-17 18:50 ` Stephen Smalley
0 siblings, 0 replies; 6+ messages in thread
From: Stephen Smalley @ 2016-08-17 18:50 UTC (permalink / raw)
To: Miroslav Vadkerti, selinux; +Cc: linux-audit
On 07/26/2016 11:15 AM, Miroslav Vadkerti wrote:
> Common Criteria requirement FMT_MSA.1 needs any configuration change
> that affect enforcement of policy to be audited. This patch adds
> auditing of changes in security context mappings for network ports,
> interfaces, nodes and file contexts.
>
> A new function log_change is introduced that audits additions,
> modification and removal of the mappings via the USER_MAC_CONFIG_CHANGE
> audit event.
>
> The format of the audit events was discussed with the audit userspace
> maintainer.
This broke semanage fcontext -D.
#semanage fcontext -a -t httpd_sys_content_t "/web(/.*)?"
#semanage fcontext -D
KeyError: all files
>
> This patch resolves: https://bugzilla.redhat.com/show_bug.cgi?id=829175
>
> Signed-off-by: Miroslav Vadkerti <mvadkert@redhat.com>
> ---
> policycoreutils/semanage/seobject.py | 75 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 75 insertions(+)
>
> diff --git a/policycoreutils/semanage/seobject.py b/policycoreutils/semanage/seobject.py
> index 3b0b108..7d6caa3 100644
> --- a/policycoreutils/semanage/seobject.py
> +++ b/policycoreutils/semanage/seobject.py
> @@ -82,6 +82,21 @@ file_type_str_to_option = {"all files": "a",
> "socket file": "s",
> "symbolic link": "l",
> "named pipe": "p"}
> +
> +proto_to_audit = {"tcp": 17,
> + "udp": 6,
> + "ipv4": 4,
> + "ipv6": 41}
> +
> +ftype_to_audit = {"": "any",
> + "b": "block",
> + "c": "char",
> + "d": "dir",
> + "f": "file",
> + "l": "symlink",
> + "p": "pipe",
> + "s": "socket"}
> +
> try:
> import audit
>
> @@ -90,6 +105,7 @@ try:
> def __init__(self):
> self.audit_fd = audit.audit_open()
> self.log_list = []
> + self.log_change_list = []
>
> def log(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
>
> @@ -109,10 +125,17 @@ try:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> self.log_list.append([self.audit_fd, audit.AUDIT_ROLE_REMOVE, sys.argv[0], str(msg), name, 0, sename, serole, serange, oldsename, oldserole, oldserange, "", "", ""])
>
> + def log_change(self, msg):
> + self.log_change_list.append([self.audit_fd, audit.AUDIT_USER_MAC_CONFIG_CHANGE, str(msg), "semanage", "", "", ""])
> +
> def commit(self, success):
> for l in self.log_list:
> audit.audit_log_semanage_message(*(l + [success]))
> + for l in self.log_change_list:
> + audit.audit_log_user_comm_message(*(l + [success]))
> +
> self.log_list = []
> + self.log_change_list = []
> except:
> class logger:
>
> @@ -138,6 +161,9 @@ except:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> self.log(msg, name, sename, serole, serange, oldsename, oldserole, oldserange)
>
> + def log_change(self, msg):
> + self.log_list.append(" %s" % msg)
> +
> def commit(self, success):
> if success == 1:
> message = "Successful: "
> @@ -155,6 +181,9 @@ class nulllogger:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> pass
>
> + def log_change(self, msg):
> + pass
> +
> def commit(self, success):
> pass
>
> @@ -1109,6 +1138,8 @@ class portRecords(semanageRecords):
> semanage_port_key_free(k)
> semanage_port_free(p)
>
> + self.mylog.log_change("resrc=port op=add lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", type, serange))
> +
> def add(self, port, proto, serange, type):
> self.begin()
> self.__add(port, proto, serange, type)
> @@ -1150,6 +1181,8 @@ class portRecords(semanageRecords):
> semanage_port_key_free(k)
> semanage_port_free(p)
>
> + self.mylog.log_change("resrc=port op=modify lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", setype, serange))
> +
> def modify(self, port, proto, serange, setype):
> self.begin()
> self.__modify(port, proto, serange, setype)
> @@ -1168,6 +1201,7 @@ class portRecords(semanageRecords):
> low = semanage_port_get_low(port)
> high = semanage_port_get_high(port)
> port_str = "%s-%s" % (low, high)
> +
> (k, proto_d, low, high) = self.__genkey(port_str, proto_str)
> if rc < 0:
> raise ValueError(_("Could not create a key for %s") % port_str)
> @@ -1177,6 +1211,11 @@ class portRecords(semanageRecords):
> raise ValueError(_("Could not delete the port %s") % port_str)
> semanage_port_key_free(k)
>
> + if low == high:
> + port_str = low
> +
> + self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port_str, proto_to_audit[proto_str]))
> +
> self.commit()
>
> def __delete(self, port, proto):
> @@ -1199,6 +1238,8 @@ class portRecords(semanageRecords):
>
> semanage_port_key_free(k)
>
> + self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port, proto_to_audit[proto]))
> +
> def delete(self, port, proto):
> self.begin()
> self.__delete(port, proto)
> @@ -1380,6 +1421,8 @@ class nodeRecords(semanageRecords):
> semanage_node_key_free(k)
> semanage_node_free(node)
>
> + self.mylog.log_change("resrc=node op=add laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", ctype, serange))
> +
> def add(self, addr, mask, proto, serange, ctype):
> self.begin()
> self.__add(addr, mask, proto, serange, ctype)
> @@ -1421,6 +1464,8 @@ class nodeRecords(semanageRecords):
> semanage_node_key_free(k)
> semanage_node_free(node)
>
> + self.mylog.log_change("resrc=node op=modify laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", setype, serange))
> +
> def modify(self, addr, mask, proto, serange, setype):
> self.begin()
> self.__modify(addr, mask, proto, serange, setype)
> @@ -1452,6 +1497,8 @@ class nodeRecords(semanageRecords):
>
> semanage_node_key_free(k)
>
> + self.mylog.log_change("resrc=node op=delete laddr=%s netmask=%s proto=%s" % (addr, mask, proto_to_audit[self.protocol[proto]]))
> +
> def delete(self, addr, mask, proto):
> self.begin()
> self.__delete(addr, mask, proto)
> @@ -1581,6 +1628,8 @@ class interfaceRecords(semanageRecords):
> semanage_iface_key_free(k)
> semanage_iface_free(iface)
>
> + self.mylog.log_change("resrc=interface op=add netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", ctype, serange))
> +
> def add(self, interface, serange, ctype):
> self.begin()
> self.__add(interface, serange, ctype)
> @@ -1618,6 +1667,8 @@ class interfaceRecords(semanageRecords):
> semanage_iface_key_free(k)
> semanage_iface_free(iface)
>
> + self.mylog.log_change("resrc=interface op=modify netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", setype, serange))
> +
> def modify(self, interface, serange, setype):
> self.begin()
> self.__modify(interface, serange, setype)
> @@ -1646,6 +1697,8 @@ class interfaceRecords(semanageRecords):
>
> semanage_iface_key_free(k)
>
> + self.mylog.log_change("resrc=interface op=delete netif=%s" % interface)
> +
> def delete(self, interface):
> self.begin()
> self.__delete(interface)
> @@ -1775,6 +1828,8 @@ class fcontextRecords(semanageRecords):
> if i.startswith(target + "/"):
> raise ValueError(_("File spec %s conflicts with equivalency rule '%s %s'") % (target, i, fdict[i]))
>
> + self.mylog.log_change("resrc=fcontext op=add-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
> +
> self.equiv[target] = substitute
> self.equal_ind = True
> self.commit()
> @@ -1785,6 +1840,9 @@ class fcontextRecords(semanageRecords):
> raise ValueError(_("Equivalence class for %s does not exists") % target)
> self.equiv[target] = substitute
> self.equal_ind = True
> +
> + self.mylog.log_change("resrc=fcontext op=modify-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
> +
> self.commit()
>
> def createcon(self, target, seuser="system_u"):
> @@ -1879,6 +1937,11 @@ class fcontextRecords(semanageRecords):
> semanage_fcontext_key_free(k)
> semanage_fcontext_free(fcontext)
>
> + if not seuser:
> + seuser = "system_u"
> +
> + self.mylog.log_change("resrc=fcontext op=add %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
> +
> def add(self, target, type, ftype="", serange="", seuser="system_u"):
> self.begin()
> self.__add(target, type, ftype, serange, seuser)
> @@ -1939,6 +2002,11 @@ class fcontextRecords(semanageRecords):
> semanage_fcontext_key_free(k)
> semanage_fcontext_free(fcontext)
>
> + if not seuser:
> + seuser = "system_u"
> +
> + self.mylog.log_change("resrc=fcontext op=modify %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
> +
> def modify(self, target, setype, ftype, serange, seuser):
> self.begin()
> self.__modify(target, setype, ftype, serange, seuser)
> @@ -1964,6 +2032,8 @@ class fcontextRecords(semanageRecords):
> raise ValueError(_("Could not delete the file context %s") % target)
> semanage_fcontext_key_free(k)
>
> + self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype_str]))
> +
> self.equiv = {}
> self.equal_ind = True
> self.commit()
> @@ -1972,6 +2042,9 @@ class fcontextRecords(semanageRecords):
> if target in self.equiv.keys():
> self.equiv.pop(target)
> self.equal_ind = True
> +
> + self.mylog.log_change("resrc=fcontext op=delete-equal %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
> +
> return
>
> (rc, k) = semanage_fcontext_key_create(self.sh, target, file_types[ftype])
> @@ -1996,6 +2069,8 @@ class fcontextRecords(semanageRecords):
>
> semanage_fcontext_key_free(k)
>
> + self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
> +
> def delete(self, target, ftype):
> self.begin()
> self.__delete(target, ftype)
>
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH] semanage: add auditing of changes in records
@ 2016-08-17 18:50 ` Stephen Smalley
0 siblings, 0 replies; 6+ messages in thread
From: Stephen Smalley @ 2016-08-17 18:50 UTC (permalink / raw)
To: Miroslav Vadkerti, selinux-+05T5uksL2qpZYMLLGbcSA
Cc: linux-audit-H+wXaHxf7aLQT0dZR+AlfA
On 07/26/2016 11:15 AM, Miroslav Vadkerti wrote:
> Common Criteria requirement FMT_MSA.1 needs any configuration change
> that affect enforcement of policy to be audited. This patch adds
> auditing of changes in security context mappings for network ports,
> interfaces, nodes and file contexts.
>
> A new function log_change is introduced that audits additions,
> modification and removal of the mappings via the USER_MAC_CONFIG_CHANGE
> audit event.
>
> The format of the audit events was discussed with the audit userspace
> maintainer.
This broke semanage fcontext -D.
#semanage fcontext -a -t httpd_sys_content_t "/web(/.*)?"
#semanage fcontext -D
KeyError: all files
>
> This patch resolves: https://bugzilla.redhat.com/show_bug.cgi?id=829175
>
> Signed-off-by: Miroslav Vadkerti <mvadkert-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
> policycoreutils/semanage/seobject.py | 75 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 75 insertions(+)
>
> diff --git a/policycoreutils/semanage/seobject.py b/policycoreutils/semanage/seobject.py
> index 3b0b108..7d6caa3 100644
> --- a/policycoreutils/semanage/seobject.py
> +++ b/policycoreutils/semanage/seobject.py
> @@ -82,6 +82,21 @@ file_type_str_to_option = {"all files": "a",
> "socket file": "s",
> "symbolic link": "l",
> "named pipe": "p"}
> +
> +proto_to_audit = {"tcp": 17,
> + "udp": 6,
> + "ipv4": 4,
> + "ipv6": 41}
> +
> +ftype_to_audit = {"": "any",
> + "b": "block",
> + "c": "char",
> + "d": "dir",
> + "f": "file",
> + "l": "symlink",
> + "p": "pipe",
> + "s": "socket"}
> +
> try:
> import audit
>
> @@ -90,6 +105,7 @@ try:
> def __init__(self):
> self.audit_fd = audit.audit_open()
> self.log_list = []
> + self.log_change_list = []
>
> def log(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
>
> @@ -109,10 +125,17 @@ try:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> self.log_list.append([self.audit_fd, audit.AUDIT_ROLE_REMOVE, sys.argv[0], str(msg), name, 0, sename, serole, serange, oldsename, oldserole, oldserange, "", "", ""])
>
> + def log_change(self, msg):
> + self.log_change_list.append([self.audit_fd, audit.AUDIT_USER_MAC_CONFIG_CHANGE, str(msg), "semanage", "", "", ""])
> +
> def commit(self, success):
> for l in self.log_list:
> audit.audit_log_semanage_message(*(l + [success]))
> + for l in self.log_change_list:
> + audit.audit_log_user_comm_message(*(l + [success]))
> +
> self.log_list = []
> + self.log_change_list = []
> except:
> class logger:
>
> @@ -138,6 +161,9 @@ except:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> self.log(msg, name, sename, serole, serange, oldsename, oldserole, oldserange)
>
> + def log_change(self, msg):
> + self.log_list.append(" %s" % msg)
> +
> def commit(self, success):
> if success == 1:
> message = "Successful: "
> @@ -155,6 +181,9 @@ class nulllogger:
> def log_remove(self, msg, name="", sename="", serole="", serange="", oldsename="", oldserole="", oldserange=""):
> pass
>
> + def log_change(self, msg):
> + pass
> +
> def commit(self, success):
> pass
>
> @@ -1109,6 +1138,8 @@ class portRecords(semanageRecords):
> semanage_port_key_free(k)
> semanage_port_free(p)
>
> + self.mylog.log_change("resrc=port op=add lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", type, serange))
> +
> def add(self, port, proto, serange, type):
> self.begin()
> self.__add(port, proto, serange, type)
> @@ -1150,6 +1181,8 @@ class portRecords(semanageRecords):
> semanage_port_key_free(k)
> semanage_port_free(p)
>
> + self.mylog.log_change("resrc=port op=modify lport=%s proto=%s tcontext=%s:%s:%s:%s" % (port, proto_to_audit[proto], "system_u", "object_r", setype, serange))
> +
> def modify(self, port, proto, serange, setype):
> self.begin()
> self.__modify(port, proto, serange, setype)
> @@ -1168,6 +1201,7 @@ class portRecords(semanageRecords):
> low = semanage_port_get_low(port)
> high = semanage_port_get_high(port)
> port_str = "%s-%s" % (low, high)
> +
> (k, proto_d, low, high) = self.__genkey(port_str, proto_str)
> if rc < 0:
> raise ValueError(_("Could not create a key for %s") % port_str)
> @@ -1177,6 +1211,11 @@ class portRecords(semanageRecords):
> raise ValueError(_("Could not delete the port %s") % port_str)
> semanage_port_key_free(k)
>
> + if low == high:
> + port_str = low
> +
> + self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port_str, proto_to_audit[proto_str]))
> +
> self.commit()
>
> def __delete(self, port, proto):
> @@ -1199,6 +1238,8 @@ class portRecords(semanageRecords):
>
> semanage_port_key_free(k)
>
> + self.mylog.log_change("resrc=port op=delete lport=%s proto=%s" % (port, proto_to_audit[proto]))
> +
> def delete(self, port, proto):
> self.begin()
> self.__delete(port, proto)
> @@ -1380,6 +1421,8 @@ class nodeRecords(semanageRecords):
> semanage_node_key_free(k)
> semanage_node_free(node)
>
> + self.mylog.log_change("resrc=node op=add laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", ctype, serange))
> +
> def add(self, addr, mask, proto, serange, ctype):
> self.begin()
> self.__add(addr, mask, proto, serange, ctype)
> @@ -1421,6 +1464,8 @@ class nodeRecords(semanageRecords):
> semanage_node_key_free(k)
> semanage_node_free(node)
>
> + self.mylog.log_change("resrc=node op=modify laddr=%s netmask=%s proto=%s tcontext=%s:%s:%s:%s" % (addr, mask, proto_to_audit[self.protocol[proto]], "system_u", "object_r", setype, serange))
> +
> def modify(self, addr, mask, proto, serange, setype):
> self.begin()
> self.__modify(addr, mask, proto, serange, setype)
> @@ -1452,6 +1497,8 @@ class nodeRecords(semanageRecords):
>
> semanage_node_key_free(k)
>
> + self.mylog.log_change("resrc=node op=delete laddr=%s netmask=%s proto=%s" % (addr, mask, proto_to_audit[self.protocol[proto]]))
> +
> def delete(self, addr, mask, proto):
> self.begin()
> self.__delete(addr, mask, proto)
> @@ -1581,6 +1628,8 @@ class interfaceRecords(semanageRecords):
> semanage_iface_key_free(k)
> semanage_iface_free(iface)
>
> + self.mylog.log_change("resrc=interface op=add netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", ctype, serange))
> +
> def add(self, interface, serange, ctype):
> self.begin()
> self.__add(interface, serange, ctype)
> @@ -1618,6 +1667,8 @@ class interfaceRecords(semanageRecords):
> semanage_iface_key_free(k)
> semanage_iface_free(iface)
>
> + self.mylog.log_change("resrc=interface op=modify netif=%s tcontext=%s:%s:%s:%s" % (interface, "system_u", "object_r", setype, serange))
> +
> def modify(self, interface, serange, setype):
> self.begin()
> self.__modify(interface, serange, setype)
> @@ -1646,6 +1697,8 @@ class interfaceRecords(semanageRecords):
>
> semanage_iface_key_free(k)
>
> + self.mylog.log_change("resrc=interface op=delete netif=%s" % interface)
> +
> def delete(self, interface):
> self.begin()
> self.__delete(interface)
> @@ -1775,6 +1828,8 @@ class fcontextRecords(semanageRecords):
> if i.startswith(target + "/"):
> raise ValueError(_("File spec %s conflicts with equivalency rule '%s %s'") % (target, i, fdict[i]))
>
> + self.mylog.log_change("resrc=fcontext op=add-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
> +
> self.equiv[target] = substitute
> self.equal_ind = True
> self.commit()
> @@ -1785,6 +1840,9 @@ class fcontextRecords(semanageRecords):
> raise ValueError(_("Equivalence class for %s does not exists") % target)
> self.equiv[target] = substitute
> self.equal_ind = True
> +
> + self.mylog.log_change("resrc=fcontext op=modify-equal %s %s" % (audit.audit_encode_nv_string("sglob", target, 0), audit.audit_encode_nv_string("tglob", substitute, 0)))
> +
> self.commit()
>
> def createcon(self, target, seuser="system_u"):
> @@ -1879,6 +1937,11 @@ class fcontextRecords(semanageRecords):
> semanage_fcontext_key_free(k)
> semanage_fcontext_free(fcontext)
>
> + if not seuser:
> + seuser = "system_u"
> +
> + self.mylog.log_change("resrc=fcontext op=add %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
> +
> def add(self, target, type, ftype="", serange="", seuser="system_u"):
> self.begin()
> self.__add(target, type, ftype, serange, seuser)
> @@ -1939,6 +2002,11 @@ class fcontextRecords(semanageRecords):
> semanage_fcontext_key_free(k)
> semanage_fcontext_free(fcontext)
>
> + if not seuser:
> + seuser = "system_u"
> +
> + self.mylog.log_change("resrc=fcontext op=modify %s ftype=%s tcontext=%s:%s:%s:%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype], seuser, "object_r", type, serange))
> +
> def modify(self, target, setype, ftype, serange, seuser):
> self.begin()
> self.__modify(target, setype, ftype, serange, seuser)
> @@ -1964,6 +2032,8 @@ class fcontextRecords(semanageRecords):
> raise ValueError(_("Could not delete the file context %s") % target)
> semanage_fcontext_key_free(k)
>
> + self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype_str]))
> +
> self.equiv = {}
> self.equal_ind = True
> self.commit()
> @@ -1972,6 +2042,9 @@ class fcontextRecords(semanageRecords):
> if target in self.equiv.keys():
> self.equiv.pop(target)
> self.equal_ind = True
> +
> + self.mylog.log_change("resrc=fcontext op=delete-equal %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
> +
> return
>
> (rc, k) = semanage_fcontext_key_create(self.sh, target, file_types[ftype])
> @@ -1996,6 +2069,8 @@ class fcontextRecords(semanageRecords):
>
> semanage_fcontext_key_free(k)
>
> + self.mylog.log_change("resrc=fcontext op=delete %s ftype=%s" % (audit.audit_encode_nv_string("tglob", target, 0), ftype_to_audit[ftype]))
> +
> def delete(self, target, ftype):
> self.begin()
> self.__delete(target, ftype)
>
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^ permalink raw reply [flat|nested] 6+ messages in thread