emulator: clean-up emulator network initialization

Do port forwarding and base port initialization at once.
Some emul_state getters/setters are refined.
"sdb.c" is "net_helper.c" now and it use new_debug_channel.

Change-Id: I0659b35e231a8f60bd3707a2d04b09213a9cb830
Signed-off-by: SeokYeon Hwang <syeon.hwang@samsung.com>
Signed-off-by: Jinhyung Choi <jinh0.choi@samsung.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/net/slirp.c b/net/slirp.c
index f505570adb..7cf1eeb764 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -275,6 +275,56 @@ error:
     return -1;
 }
 
+#ifdef CONFIG_MARU
+bool hostfwd_try_add(int is_udp, const char *host_addr_str,
+        int host_port, const char *guest_addr_str, int guest_port)
+{
+    if (QTAILQ_EMPTY(&slirp_stacks)) {
+        return false;
+    }
+
+    SlirpState *s = QTAILQ_FIRST(&slirp_stacks);
+    struct in_addr host_addr = { .s_addr = INADDR_ANY };
+    struct in_addr guest_addr = { .s_addr = 0 };
+
+    if ((host_addr_str && !inet_aton(host_addr_str, &host_addr)) ||
+            (guest_addr_str && !inet_aton(guest_addr_str, &guest_addr))) {
+        error_report("invalid host forwarding rule '%s' '%s",
+                host_addr_str, guest_addr_str);
+        return false;
+    }
+
+    if (slirp_add_hostfwd(s->slirp, is_udp, host_addr, host_port, guest_addr,
+                          guest_port) < 0) {
+        return false;
+    }
+
+    return true;
+}
+
+bool hostfwd_try_remove(int is_udp, const char *host_addr_str, int host_port)
+{
+    if (QTAILQ_EMPTY(&slirp_stacks)) {
+        return false;
+    }
+
+    SlirpState *s = QTAILQ_FIRST(&slirp_stacks);
+    struct in_addr host_addr = { .s_addr = INADDR_ANY };
+
+    if (host_addr_str && !inet_aton(host_addr_str, &host_addr)) {
+        error_report("invalid host forwarding rule '%s",
+                host_addr_str);
+        return false;
+    }
+
+    if (slirp_remove_hostfwd(s->slirp, is_udp, host_addr, host_port) < 0) {
+        return false;
+    }
+
+    return true;
+}
+#endif
+
 static SlirpState *slirp_lookup(Monitor *mon, const char *vlan,
                                 const char *stack)
 {