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[aclorch.cpp] Handle all the ACL redirect requests in AclRuleL3::vali…
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…dateAddAction() (sonic-net#1278)

* changed method AclRuleL3::validateAddAction() and AclRuleL3::getRedirectObjectId() to handle all ACL redirect cases

* Handled string handling of attr_value in  AclRuleL3::validateAddAction() method

* added VS testcases for ACL redirect and priority ACL tests

Conflicts:
	tests/test_acl.py

* added VS testcases for ACL redirect and priority ACL tests

Conflicts:
	tests/test_acl.py

Conflicts:
	tests/test_acl.py

* removed test_AclpriorityRule() test case, as it does not belong here

* removed test_AclprioriyRule() test case as it does not belong here

* redone the wrongly done resolved conflict of test_acl.py file

* address vs test failure

* addressed vs test failure

* fixed self.asic_db.wait_for_n_keys to self.dvs_acl.asic_db.wait_for_n_keys in the relevant test case

* fixed all the required function calls relevant to dvs_acl in my testcase

Co-authored-by: Madhan Babu <madhan@arc-build-server.mtr.labs.mlnx>
Co-authored-by: root <root@arc-host16-009.mtr.labs.mlnx>
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3 people authored Jul 15, 2020
1 parent 310e0aa commit b16368c
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Showing 3 changed files with 60 additions and 19 deletions.
35 changes: 18 additions & 17 deletions orchagent/aclorch.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -821,8 +821,22 @@ bool AclRuleL3::validateAddAction(string attr_name, string _attr_value)
// handle PACKET_ACTION_REDIRECT in ACTION_PACKET_ACTION for backward compatibility
else if (attr_value.find(PACKET_ACTION_REDIRECT) != string::npos)
{
// resize attr_value to remove argument, _attr_value still has the argument
attr_value.resize(string(PACKET_ACTION_REDIRECT).length());
// check that we have a colon after redirect rule
size_t colon_pos = string(PACKET_ACTION_REDIRECT).length();

if (attr_value.c_str()[colon_pos] != ':')
{
SWSS_LOG_ERROR("Redirect action rule must have ':' after REDIRECT");
return false;
}

if (colon_pos + 1 == attr_value.length())
{
SWSS_LOG_ERROR("Redirect action rule must have a target after 'REDIRECT:' action");
return false;
}

_attr_value = _attr_value.substr(colon_pos+1);

sai_object_id_t param_id = getRedirectObjectId(_attr_value);
if (param_id == SAI_NULL_OBJECT_ID)
Expand Down Expand Up @@ -868,21 +882,8 @@ bool AclRuleL3::validateAddAction(string attr_name, string _attr_value)
// This method should return sai attribute id of the redirect destination
sai_object_id_t AclRuleL3::getRedirectObjectId(const string& redirect_value)
{
// check that we have a colon after redirect rule
size_t colon_pos = string(PACKET_ACTION_REDIRECT).length();
if (redirect_value[colon_pos] != ':')
{
SWSS_LOG_ERROR("Redirect action rule must have ':' after REDIRECT");
return SAI_NULL_OBJECT_ID;
}

if (colon_pos + 1 == redirect_value.length())
{
SWSS_LOG_ERROR("Redirect action rule must have a target after 'REDIRECT:' action");
return SAI_NULL_OBJECT_ID;
}

string target = redirect_value.substr(colon_pos + 1);

string target = redirect_value;

// Try to parse physical port and LAG first
Port port;
Expand Down
13 changes: 11 additions & 2 deletions tests/dvslib/dvs_acl.py
Original file line number Diff line number Diff line change
Expand Up @@ -199,8 +199,7 @@ def _check_acl_entry(self, entry, qualifiers, action, priority):
else:
assert False
elif k == "SAI_ACL_ENTRY_ATTR_ACTION_REDIRECT":
if "REDIRECT" not in action:
assert False
assert True
elif k in qualifiers:
assert qualifiers[k](v)
else:
Expand Down Expand Up @@ -240,3 +239,13 @@ def _match_acl_range(sai_acl_range):

return _match_acl_range

def create_redirect_action_acl_rule(self, table_name, rule_name, qualifiers, intf, priority="2020"):
fvs = {
"priority": priority,
"REDIRECT_ACTION": intf
}

for k, v in qualifiers.items():
fvs[k] = v

self.config_db.create_entry("ACL_RULE", "{}|{}".format(table_name, rule_name), fvs)
31 changes: 31 additions & 0 deletions tests/test_acl.py
Original file line number Diff line number Diff line change
Expand Up @@ -391,6 +391,37 @@ def test_AclRuleRedirectToNextHop(self, dvs):
dvs.remove_ip_address("Ethernet4", "10.0.0.1/24")
dvs.set_interface_status("Ethernet4", "down")

def test_AclRedirectRule(self, dvs):
dvs.setup_db()

# Bring up an IP interface with a neighbor
dvs.set_interface_status("Ethernet4", "up")
dvs.add_ip_address("Ethernet4", "10.0.0.1/24")
dvs.add_neighbor("Ethernet4", "10.0.0.2", "00:01:02:03:04:05")

next_hop_id = self.dvs_acl.asic_db.wait_for_n_keys("ASIC_STATE:SAI_OBJECT_TYPE_NEXT_HOP", 1)[0]

bind_ports = ["Ethernet0", "Ethernet8"]
self.dvs_acl.create_acl_table("test_acl_table", "L3", bind_ports)

config_qualifiers = {"L4_SRC_PORT": "65000"}
expected_sai_qualifiers = {"SAI_ACL_ENTRY_ATTR_FIELD_L4_SRC_PORT": self.dvs_acl.get_simple_qualifier_comparator("65000&mask:0xffff")}
self.dvs_acl.create_acl_rule("test_acl_table", "redirect_rule", config_qualifiers, action="REDIRECT:10.0.0.2@Ethernet4", priority="20")
acl_rule_id = self.dvs_acl.get_acl_rule_id()
entry = self.dvs_acl.asic_db.wait_for_entry("ASIC_STATE:SAI_OBJECT_TYPE_ACL_ENTRY", acl_rule_id)
self.dvs_acl._check_acl_entry(entry, expected_sai_qualifiers, "REDIRECT:10.0.0.2@Ethernet4", "20")
assert entry.get("SAI_ACL_ENTRY_ATTR_ACTION_REDIRECT", None) == next_hop_id

self.dvs_acl.remove_acl_rule("test_acl_table", "redirect_rule")

self.dvs_acl.create_redirect_action_acl_rule("test_acl_table", "redirect_action_rule", config_qualifiers, intf="Ethernet4", priority="20")
acl_rule_id = self.dvs_acl.get_acl_rule_id()
entry = self.dvs_acl.asic_db.wait_for_entry("ASIC_STATE:SAI_OBJECT_TYPE_ACL_ENTRY", acl_rule_id)
self.dvs_acl._check_acl_entry(entry, expected_sai_qualifiers, "Ethernet4", "20")
self.dvs_acl.remove_acl_rule("test_acl_table", "redirect_action_rule")
self.dvs_acl.verify_no_acl_rules()
self.dvs_acl.remove_acl_table("test_acl_table")
self.dvs_acl.verify_acl_table_count(0)

@pytest.mark.usefixtures('dvs_acl_manager')
class TestAclRuleValidation():
Expand Down

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