bootp: add ntpserver option to bootp request

Signed-off-by: Luuk Paulussen <luuk.paulussen@alliedtelesis.co.nz>
Acked-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Cc: Ben Warren <biggerbadderben@gmail.com>

diff --git a/net/bootp.c b/net/bootp.c
index 4db63cb..45eaab1 100644 (file)
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -228,6 +228,11 @@ static void BootpVendorFieldProcess (u8 * ext)
                        NetOurNISDomain[size] = 0;
                }
                break;
+#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
+       case 42:        /* NTP server IP */
+               NetCopyIP(&NetNtpServerIP, (IPaddr_t *) (ext + 2));
+               break;
+#endif
                /* Application layer fields */
        case 43:                /* Vendor specific info - Not yet supported     */
                /*
@@ -278,6 +283,11 @@ static void BootpVendorProcess (u8 * ext, int size)
 
        if (NetBootFileSize)
                debug("NetBootFileSize: %d\n", NetBootFileSize);
+
+#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
+       if (NetNtpServerIP)
+               debug("NetNtpServerIP : %pI4\n", &NetNtpServerIP);
+#endif
 }
 /*
  *     Handle a BOOTP received packet.
@@ -538,6 +548,11 @@ static int BootpExtended (u8 * e)
        *e++ = 32;
        e   += 32;
 #endif
+#if defined(CONFIG_BOOTP_NTPSERVER)
+       *e++ = 42;
+       *e++ = 4;
+       e   += 4;
+#endif
 
        *e++ = 255;             /* End of the list */