client config ARP resolve working. Still missing IPv6 support.

Signed-off-by: Ido Barnea <ibarnea@cisco.com>

1 files changed, 122 insertions, 0 deletions

diff --git a/src/utl_ip.cpp b/src/utl_ip.cpp
new file mode 100644
index 00000000..c645c7ed
--- /dev/null
+++ b/src/utl_ip.cpp
@@ -0,0 +1,122 @@
+/*
+ Cisco Systems, Inc.
+*/
+
+/*
+Copyright (c) 2016-2016 Cisco Systems, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+#include <string>
+#include <iostream>
+#include <pkt_gen.h>
+#include "utl_ip.h"
+
+void COneIPInfo::dump(FILE *fd, const char *offset) const {
+    uint8_t mac[ETHER_ADDR_LEN];
+    m_mac.copyToArray(mac);
+    char ip_str[100];
+    get_ip_str(ip_str);
+    std::string mac_str;
+    utl_macaddr_to_str(mac, mac_str);
+    const char *mac_char = resolve_needed() ?  "Not resolved" : mac_str.c_str();
+    fprintf(fd, "%sip: %s vlan: %d port: %d mac: %s\n", offset, ip_str, m_vlan, m_port, mac_char);
+}
+
+bool COneIPInfo::resolve_needed() const {
+    return m_mac.isDefaultAddress();
+}
+
+/*
+ * Fill buffer p with arp request.
+ * port_id - port id we intend to send on
+ * sip - source IP/MAC information
+ */
+void COneIPv4Info::fill_arp_req_buf(uint8_t *p, uint16_t port_id, COneIPInfo *sip) {
+    uint8_t src_mac[ETHER_ADDR_LEN];
+    sip->get_mac(src_mac);
+
+    CTestPktGen::create_arp_req(p, ((COneIPv4Info *)sip)->get_ip(), m_ip, src_mac, m_vlan, port_id);
+}
+
+void COneIPv4Info::fill_grat_arp_buf(uint8_t *p) {
+    uint8_t src_mac[ETHER_ADDR_LEN];
+    get_mac(src_mac);
+
+    CTestPktGen::create_arp_req(p, m_ip, m_ip, src_mac, m_vlan, 0);
+}
+
+void COneIPv6Info::fill_arp_req_buf(uint8_t *p, uint16_t port_id, COneIPInfo *sip) {
+    //??? implement ipv6
+}
+
+void COneIPv6Info::fill_grat_arp_buf(uint8_t *p) {
+    //??? implement ipv6
+}
+
+const COneIPInfo *CManyIPInfo::get_next() {
+    COneIPInfo *ret;
+    
+    if (!m_iter_initiated) {
+        m_ipv4_iter = m_ipv4_resolve.begin();
+        m_iter_initiated = true;
+    }
+    
+    if (m_ipv4_iter == m_ipv4_resolve.end()) {
+        m_ipv4_iter = m_ipv4_resolve.begin();
+        return NULL;
+    }
+    
+    ret = &(m_ipv4_iter->second);
+    m_ipv4_iter++;
+    return ret;
+}
+
+void CManyIPInfo::dump(FILE *fd) {
+    std::map<std::pair<uint32_t, uint16_t>, COneIPv4Info>::iterator it;
+    for (it = m_ipv4_resolve.begin(); it != m_ipv4_resolve.end(); it++) {
+        fprintf(fd, "IPv4 resolved list:\n");
+        uint8_t mac[ETHER_ADDR_LEN];
+        it->second.get_mac(mac);
+        fprintf(fd, "ip:%s vlan: %d resolved to mac %s\n", ip_to_str(it->first.first).c_str(), it->first.second
+                , utl_macaddr_to_str(mac).c_str());
+    }
+}
+
+void CManyIPInfo::insert(COneIPv4Info &ip_info) {
+    m_ipv4_resolve.insert(std::pair<std::pair<uint32_t, uint16_t>, COneIPv4Info>
+                          (std::pair<uint32_t, uint16_t>(ip_info.get_ip(), ip_info.get_vlan()), ip_info));
+}
+
+bool CManyIPInfo::lookup(uint32_t ip, uint16_t vlan, MacAddress &ret_mac) {
+    std::map<std::pair<uint32_t, uint16_t>, COneIPv4Info>::iterator it = m_ipv4_resolve.find(std::make_pair(ip, vlan));
+    if (it != m_ipv4_resolve.end()) {
+        uint8_t mac[ETHER_ADDR_LEN];
+        (*it).second.get_mac(mac);
+        ret_mac.set(mac);
+        return true;
+    } else {
+        return false;
+    }
+}
+
+const COneIPInfo *CManyIPInfo::get_first() {
+    if (m_ipv4_resolve.size() == 0) {
+        return NULL;
+    } else {
+        m_ipv4_iter = m_ipv4_resolve.begin();
+        return &(m_ipv4_iter->second);
+    }
+}
+
+