[intfmgr]: Support configuring IPs for all regular interfaces (sonic-net#544)

Enable configuring IPv4 and IPv6 addresses on regular ports
Add tests to test IPv4 add/remove to regular ports

Signed-off-by: Shu0T1an ChenG <shuche@microsoft.com>

Author: Shuotian Cheng

cfgmgr/intfmgr.cpp

@@ -25,12 +25,20 @@ IntfMgr::IntfMgr(DBConnector *cfgDb, DBConnector *appDb, DBConnector *stateDb, c
 {
 }
 
-bool IntfMgr::setIntfIp(const string &alias, const string &opCmd, const string &ipPrefixStr)
+bool IntfMgr::setIntfIp(const string &alias, const string &opCmd,
+                        const string &ipPrefixStr, const bool ipv4)
 {
     stringstream cmd;
     string res;
 
-    cmd << IP_CMD << " address " << opCmd << " " << ipPrefixStr << " dev " << alias;;
+    if (ipv4)
+    {
+        cmd << IP_CMD << " address " << opCmd << " " << ipPrefixStr << " dev " << alias;
+    }
+    else
+    {
+        cmd << IP_CMD << " -6 address " << opCmd << " " << ipPrefixStr << " dev " << alias;
+    }
     int ret = swss::exec(cmd.str(), res);
     return (ret == 0);
 }
@@ -72,34 +80,24 @@ void IntfMgr::doTask(Consumer &consumer)
     {
         KeyOpFieldsValuesTuple t = it->second;
 
-        string keySeparator = CONFIGDB_KEY_SEPARATOR;
-        vector<string> keys = tokenize(kfvKey(t), keySeparator[0]);
-        string alias(keys[0]);
+        vector<string> keys = tokenize(kfvKey(t), config_db_key_delimiter);
 
-        if (alias.compare(0, strlen(VLAN_PREFIX), VLAN_PREFIX))
+        if (keys.size() != 2)
         {
-            /* handle IP over vlan Only for now, skip the rest */
+            SWSS_LOG_ERROR("Invalid key %s", kfvKey(t).c_str());
             it = consumer.m_toSync.erase(it);
             continue;
         }
 
-        size_t pos = kfvKey(t).find(CONFIGDB_KEY_SEPARATOR);
-        if (pos == string::npos)
-        {
-            SWSS_LOG_DEBUG("Invalid key %s", kfvKey(t).c_str());
-            it = consumer.m_toSync.erase(it);
-            continue;
-        }
-        IpPrefix ip_prefix(kfvKey(t).substr(pos+1));
-
-        SWSS_LOG_DEBUG("intfs doTask: %s", (dumpTuple(consumer, t)).c_str());
+        string alias(keys[0]);
+        IpPrefix ip_prefix(keys[1]);
 
         string op = kfvOp(t);
         if (op == SET_COMMAND)
         {
             /*
-             * Don't proceed if port/lag/VLAN is not ready yet.
-             * The pending task will be checked periodially and retried.
+             * Don't proceed if port/LAG/VLAN is not ready yet.
+             * The pending task will be checked periodically and retried.
              * TODO: Subscribe to stateDB for port/lag/VLAN state and retry
              * pending tasks immediately upon state change.
              */
@@ -109,18 +107,17 @@ void IntfMgr::doTask(Consumer &consumer)
                 it++;
                 continue;
             }
-            string opCmd("add");
-            string ipPrefixStr = ip_prefix.to_string();
-            setIntfIp(alias, opCmd, ipPrefixStr);
+            setIntfIp(alias, "add", ip_prefix.to_string(), ip_prefix.isV4());
         }
         else if (op == DEL_COMMAND)
         {
-            string opCmd("del");
-            string ipPrefixStr = ip_prefix.to_string();
-            setIntfIp(alias, opCmd, ipPrefixStr);
+            setIntfIp(alias, "del", ip_prefix.to_string(), ip_prefix.isV4());
+        }
+        else
+        {
+            SWSS_LOG_ERROR("Unknown operation: %s", op.c_str());
         }
 
         it = consumer.m_toSync.erase(it);
-        continue;
     }
 }

cfgmgr/intfmgr.h

@@ -21,7 +21,7 @@ class IntfMgr : public Orch
     Table m_cfgIntfTable, m_cfgVlanIntfTable;
     Table m_statePortTable, m_stateLagTable, m_stateVlanTable;
 
-    bool setIntfIp(const string &alias, const string &opCmd, const string &ipPrefixStr);
+    bool setIntfIp(const string &alias, const string &opCmd, const string &ipPrefixStr, const bool ipv4 = true);
     void doTask(Consumer &consumer);
     bool isIntfStateOk(const string &alias);
 };

tests/test_interface.py

@@ -1,8 +1,73 @@
 from swsscommon import swsscommon
+
 import time
-import re
 import json
 
+class TestInterfaceIpv4Addresses(object):
+    def test_InterfaceAddIpv4Address(self, dvs):
+        pdb = swsscommon.DBConnector(0, dvs.redis_sock, 0)
+        adb = swsscommon.DBConnector(1, dvs.redis_sock, 0)
+        cdb = swsscommon.DBConnector(4, dvs.redis_sock, 0)
+
+        # assign IP to interface
+        tbl = swsscommon.Table(cdb, "INTERFACE")
+        fvs = swsscommon.FieldValuePairs([("NULL", "NULL")])
+        tbl.set("Ethernet8|10.0.0.4/31", fvs)
+        time.sleep(1)
+
+        # check application database
+        tbl = swsscommon.Table(pdb, "INTF_TABLE:Ethernet8")
+        intf_entries = tbl.getKeys()
+        assert len(intf_entries) == 1
+        assert intf_entries[0] == "10.0.0.4/31"
+
+        (status, fvs) = tbl.get(tbl.getKeys()[0])
+        assert status == True
+        assert len(fvs) == 2
+        for fv in fvs:
+            if fv[0] == "scope":
+                assert fv[1] == "global"
+            elif fv[0] == "family":
+                assert fv[1] == "IPv4"
+            else:
+                assert False
+
+        # check asic database
+        tbl = swsscommon.Table(adb, "ASIC_STATE:SAI_OBJECT_TYPE_ROUTE_ENTRY")
+        for key in tbl.getKeys():
+            route = json.loads(key)
+            if route["dest"] == "10.0.0.4/31":
+                subnet_found = True
+            if route["dest"] == "10.0.0.4/32":
+                ip2me_found = True
+
+        assert subnet_found and ip2me_found
+
+    def test_InterfaceRemoveIpv4Address(self, dvs):
+        pdb = swsscommon.DBConnector(0, dvs.redis_sock, 0)
+        adb = swsscommon.DBConnector(1, dvs.redis_sock, 0)
+        cdb = swsscommon.DBConnector(4, dvs.redis_sock, 0)
+
+        # assign IP to interface
+        tbl = swsscommon.Table(cdb, "INTERFACE")
+        tbl._del("Ethernet8|10.0.0.4/31")
+        time.sleep(1)
+
+        # check application database
+        tbl = swsscommon.Table(pdb, "INTF_TABLE:Ethernet8")
+        intf_entries = tbl.getKeys()
+        assert len(intf_entries) == 0
+
+        # check asic database
+        tbl = swsscommon.Table(adb, "ASIC_STATE:SAI_OBJECT_TYPE_ROUTE_ENTRY")
+        for key in tbl.getKeys():
+            route = json.loads(key)
+            if route["dest"] == "10.0.0.4/31":
+                assert False
+            if route["dest"] == "10.0.0.4/32":
+                assert False
+
+
 def test_InterfaceIpChange(dvs):
 
     dvs.runcmd("ifconfig Ethernet0 10.0.0.0/31 up")