6 files changed, 30 insertions, 4 deletions

diff --git a/networking/udhcp/README.udhcpc b/networking/udhcp/README.udhcpc
index d720a37cf..e19bf3750 100644
--- a/networking/udhcp/README.udhcpc
+++ b/networking/udhcp/README.udhcpc
@@ -12,7 +12,8 @@ The command line options for the udhcp client are:
 
 -c, --clientid=CLIENTID         Client identifier
 -H, --hostname=HOSTNAME         Client hostname
--h,                             Alias for -H
+-h,                             Alias for -H
+-F, --fqdn=FQDN                 Client fully qualified domain name
 -f, --foreground                Do not fork after getting lease
 -b, --background                Fork to background if lease cannot be
                                 immediately negotiated.
diff --git a/networking/udhcp/clientpacket.c b/networking/udhcp/clientpacket.c
index ec96601cb..c5e1c210b 100644
--- a/networking/udhcp/clientpacket.c
+++ b/networking/udhcp/clientpacket.c
@@ -78,6 +78,7 @@ static void init_packet(struct dhcpMessage *packet, char type)
         memcpy(packet->chaddr, client_config.arp, 6);
         add_option_string(packet->options, client_config.clientid);
         if (client_config.hostname) add_option_string(packet->options, client_config.hostname);
+        if (client_config.fqdn) add_option_string(packet->options, client_config.fqdn);
         add_option_string(packet->options, (uint8_t *) &vendor_id);
 }
 
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 449b51763..95fa8150d 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -67,6 +67,7 @@ struct client_config_t client_config = {
         script: DEFAULT_SCRIPT,
         clientid: NULL,
         hostname: NULL,
+        fqdn: NULL,
         ifindex: 0,
         arp: "\0\0\0\0\0\0",            /* appease gcc-3.0 */
 };
@@ -79,6 +80,7 @@ static void __attribute__ ((noreturn)) show_usage(void)
 "  -c, --clientid=CLIENTID         Client identifier\n"
 "  -H, --hostname=HOSTNAME         Client hostname\n"
 "  -h                              Alias for -H\n"
+"  -F, --fqdn=FQDN                 Client fully qualified domain name\n"
 "  -f, --foreground                Do not fork after getting lease\n"
 "  -b, --background                Fork to background if lease cannot be\n"
 "                                  immediately negotiated.\n"
@@ -197,7 +199,8 @@ int main(int argc, char *argv[])
                 {"foreground",  no_argument,            0, 'f'},
                 {"background",  no_argument,            0, 'b'},
                 {"hostname",    required_argument,      0, 'H'},
-                {"hostname",    required_argument,      0, 'h'},
+                {"hostname",    required_argument,      0, 'h'},
+                {"fqdn",        required_argument,      0, 'F'},
                 {"interface",   required_argument,      0, 'i'},
                 {"now",         no_argument,            0, 'n'},
                 {"pidfile",     required_argument,      0, 'p'},
@@ -211,7 +214,7 @@ int main(int argc, char *argv[])
         /* get options */
         while (1) {
                 int option_index = 0;
-                c = getopt_long(argc, argv, "c:fbH:h:i:np:qr:s:v", arg_options, &option_index);
+                c = getopt_long(argc, argv, "c:fbH:h:F:i:np:qr:s:v", arg_options, &option_index);
                 if (c == -1) break;
 
                 switch (c) {
@@ -239,6 +242,23 @@ int main(int argc, char *argv[])
                         client_config.hostname[OPT_LEN] = len;
                         strncpy(client_config.hostname + 2, optarg, len);
                         break;
+                case 'F':
+                        len = strlen(optarg) > 255 ? 255 : strlen(optarg);
+                        if (client_config.fqdn) free(client_config.fqdn);
+                        client_config.fqdn = xmalloc(len + 5);
+                        client_config.fqdn[OPT_CODE] = DHCP_FQDN;
+                        client_config.fqdn[OPT_LEN] = len + 3;
+                        /* Flags: 0000NEOS
+                        S: 1 => Client requests Server to update A RR in DNS as well as PTR
+                        O: 1 => Server indicates to client that DNS has been updated regardless
+                        E: 1 => Name data is DNS format, i.e. <4>host<6>domain<4>com<0> not "host.domain.com"
+                        N: 1 => Client requests Server to not update DNS
+                        */
+                        client_config.fqdn[OPT_LEN + 1] = 0x1;
+                        client_config.fqdn[OPT_LEN + 2] = 0;
+                        client_config.fqdn[OPT_LEN + 3] = 0;
+                        strncpy(client_config.fqdn + 5, optarg, len);
+                        break;
                 case 'i':
                         client_config.interface =  optarg;
                         break;
diff --git a/networking/udhcp/dhcpc.h b/networking/udhcp/dhcpc.h
index 9c4aa95f7..77c180944 100644
--- a/networking/udhcp/dhcpc.h
+++ b/networking/udhcp/dhcpc.h
@@ -27,6 +27,7 @@ struct client_config_t {
         char *script;                   /* User script to run at dhcp events */
         uint8_t *clientid;              /* Optional client id to use */
         uint8_t *hostname;              /* Optional hostname to use */
+        uint8_t *fqdn;                  /* Optional fully qualified domain name to use */
         int ifindex;                    /* Index number of the interface to use */
         uint8_t arp[6];                 /* Our arp address */
 };
diff --git a/networking/udhcp/dhcpd.h b/networking/udhcp/dhcpd.h
index c47f6aa3f..65c8348bf 100644
--- a/networking/udhcp/dhcpd.h
+++ b/networking/udhcp/dhcpd.h
@@ -63,6 +63,7 @@
 #define DHCP_T2                 0x3b
 #define DHCP_VENDOR             0x3c
 #define DHCP_CLIENT_ID          0x3d
+#define DHCP_FQDN               0x51
 
 #define DHCP_END                0xFF
 
diff --git a/networking/udhcp/options.c b/networking/udhcp/options.c
index d75bc5aff..ae9819413 100644
--- a/networking/udhcp/options.c
+++ b/networking/udhcp/options.c
@@ -32,7 +32,9 @@ struct dhcp_option dhcp_options[] = {
         {"ipttl",       OPTION_U8,                              0x17},
         {"mtu",         OPTION_U16,                             0x1a},
         {"broadcast",   OPTION_IP | OPTION_REQ,                 0x1c},
-        {"ntpsrv",      OPTION_IP | OPTION_LIST,                0x2a},
+        {"nisdomain",   OPTION_STRING | OPTION_REQ,             0x28},
+        {"nissrv",      OPTION_IP | OPTION_LIST | OPTION_REQ,   0x29},
+        {"ntpsrv",      OPTION_IP | OPTION_LIST | OPTION_REQ,   0x2a},
         {"wins",        OPTION_IP | OPTION_LIST,                0x2c},
         {"requestip",   OPTION_IP,                              0x32},
         {"lease",       OPTION_U32,                             0x33},