These changes are the raw update to qemu-2.6.

[kvmfornfv.git] / qemu / slirp / ip6_input.c

diff --git a/qemu/slirp/ip6_input.c b/qemu/slirp/ip6_input.c
new file mode 100644 (file)
index 0000000..ac2e3ea
--- /dev/null
+++ b/qemu/slirp/ip6_input.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2013
+ * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
+ */
+
+#include "qemu/osdep.h"
+#include "slirp.h"
+#include "ip6_icmp.h"
+
+/*
+ * IP initialization: fill in IP protocol switch table.
+ * All protocols not implemented in kernel go to raw IP protocol handler.
+ */
+void ip6_init(Slirp *slirp)
+{
+    icmp6_init(slirp);
+}
+
+void ip6_cleanup(Slirp *slirp)
+{
+    icmp6_cleanup(slirp);
+}
+
+void ip6_input(struct mbuf *m)
+{
+    struct ip6 *ip6;
+    Slirp *slirp = m->slirp;
+
+    if (!slirp->in6_enabled) {
+        goto bad;
+    }
+
+    DEBUG_CALL("ip6_input");
+    DEBUG_ARG("m = %lx", (long)m);
+    DEBUG_ARG("m_len = %d", m->m_len);
+
+    if (m->m_len < sizeof(struct ip6)) {
+        goto bad;
+    }
+
+    ip6 = mtod(m, struct ip6 *);
+
+    if (ip6->ip_v != IP6VERSION) {
+        goto bad;
+    }
+
+    if (ntohs(ip6->ip_pl) > IF_MTU) {
+        icmp6_send_error(m, ICMP6_TOOBIG, 0);
+        goto bad;
+    }
+
+    /* check ip_ttl for a correct ICMP reply */
+    if (ip6->ip_hl == 0) {
+        icmp6_send_error(m, ICMP6_TIMXCEED, ICMP6_TIMXCEED_INTRANS);
+        goto bad;
+    }
+
+    /*
+     * Switch out to protocol's input routine.
+     */
+    switch (ip6->ip_nh) {
+    case IPPROTO_TCP:
+        NTOHS(ip6->ip_pl);
+        tcp_input(m, sizeof(struct ip6), (struct socket *)NULL, AF_INET6);
+        break;
+    case IPPROTO_UDP:
+        udp6_input(m);
+        break;
+    case IPPROTO_ICMPV6:
+        icmp6_input(m);
+        break;
+    default:
+        m_free(m);
+    }
+    return;
+bad:
+    m_free(m);
+}