slirp/ncsi: add a "Get Parameters" response

Command 0x17 'Get Parameters' is used to get configuration parameter
values currently in effect on the controller and it is mandatory in
the NS-CI specification.

Provide a minimum response to exercise the kernel.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>

diff --git a/slirp/ncsi.c b/slirp/ncsi.c
index 02d0e9def3e87bf02308c2f31ee33479ddf355d1..7b3fff207ab312cceac94665a1fa77317f9fc80b 100644 (file)
--- a/slirp/ncsi.c
+++ b/slirp/ncsi.c
@@ -35,6 +35,20 @@ static int ncsi_rsp_handler_gls(struct ncsi_rsp_pkt_hdr *rnh)
     return 0;
 }
 
+/* Get Parameters */
+static int ncsi_rsp_handler_gp(struct ncsi_rsp_pkt_hdr *rnh)
+{
+    struct ncsi_rsp_gp_pkt *rsp = (struct ncsi_rsp_gp_pkt *) rnh;
+
+    /* no MAC address filters or VLAN filters on the channel */
+    rsp->mac_cnt = 0;
+    rsp->mac_enable = 0;
+    rsp->vlan_cnt = 0;
+    rsp->vlan_enable = 0;
+
+    return 0;
+}
+
 static const struct ncsi_rsp_handler {
         unsigned char   type;
         int             payload;
@@ -62,7 +76,7 @@ static const struct ncsi_rsp_handler {
         { NCSI_PKT_RSP_SNFC,    4, NULL },
         { NCSI_PKT_RSP_GVI,    40, NULL },
         { NCSI_PKT_RSP_GC,     32, ncsi_rsp_handler_gc },
-        { NCSI_PKT_RSP_GP,     -1, NULL },
+        { NCSI_PKT_RSP_GP,     40, ncsi_rsp_handler_gp },
         { NCSI_PKT_RSP_GCPS,  172, NULL },
         { NCSI_PKT_RSP_GNS,   172, NULL },
         { NCSI_PKT_RSP_GNPTS, 172, NULL },