support --vmnet-nat66-prefix

Signed-off-by: Ninh Pham <[email protected]>

Author: nfam

cli.c

@@ -47,6 +47,11 @@ static void print_usage(const char *argv0) {
          "specified\n");
   printf("--vmnet-interface-id=UUID           vmnet interface ID (default: "
          "random)\n");
+  printf("--vmnet-nat66-prefix=PREFIX::       The IPv6 prefix to use with "
+         "shared mode.\n");
+  printf("                                    The prefix must be a ULA i.e. "
+         "start with fd00::/8.\n");
+  printf("                                    (default: random)\n");
   printf("-p, --pidfile=PIDFILE               save pid to PIDFILE\n");
   printf("-h, --help                          display this help and exit\n");
   printf("-v, --version                       display version information and "
@@ -64,6 +69,7 @@ static void print_version() { puts(VERSION); }
 #define CLI_OPTIONS_ID_VMNET_DHCP_END -46
 #define CLI_OPTIONS_ID_VMNET_MASK -47
 #define CLI_OPTIONS_ID_VMNET_INTERFACE_ID -48
+#define CLI_OPTIONS_ID_VMNET_NAT66_PREFIX -50
 struct cli_options *cli_options_parse(int argc, char *argv[]) {
   struct cli_options *res = malloc(sizeof(*res));
   if (res == NULL) {
@@ -82,6 +88,8 @@ struct cli_options *cli_options_parse(int argc, char *argv[]) {
       {"vmnet-mask", required_argument, NULL, CLI_OPTIONS_ID_VMNET_MASK},
       {"vmnet-interface-id", required_argument, NULL,
        CLI_OPTIONS_ID_VMNET_INTERFACE_ID},
+      {"vmnet-nat66-prefix", required_argument, NULL,
+       CLI_OPTIONS_ID_VMNET_NAT66_PREFIX},
       {"pidfile", required_argument, NULL, 'p'},
       {"help", no_argument, NULL, 'h'},
       {"version", no_argument, NULL, 'v'},
@@ -123,6 +131,9 @@ struct cli_options *cli_options_parse(int argc, char *argv[]) {
         goto error;
       }
       break;
+    case CLI_OPTIONS_ID_VMNET_NAT66_PREFIX:
+      res->vmnet_nat66_prefix = strdup(optarg);
+      break;
     case 'p':
       res->pidfile = strdup(optarg);
       break;
@@ -238,6 +249,8 @@ void cli_options_destroy(struct cli_options *x) {
     free(x->vmnet_dhcp_end);
   if (x->vmnet_mask != NULL)
     free(x->vmnet_mask);
+  if (x->vmnet_nat66_prefix != NULL)
+    free(x->vmnet_nat66_prefix);
   if (x->pidfile != NULL)
     free(x->pidfile);
   free(x);

cli.h

@@ -20,6 +20,8 @@ struct cli_options {
   char *vmnet_mask;
   // --vmnet-interface-id, corresponds to vmnet_interface_id_key
   uuid_t vmnet_interface_id;
+  // --vmnet-nat66-prefix, corresponds to vmnet_nat66_prefix_key
+  char *vmnet_nat66_prefix;
   // -p, --pidfile; writes pidfile using permissions of socket_vmnet
   char *pidfile;
   // arg

main.c

@@ -253,6 +253,11 @@ static interface_ref start(struct state *state, struct cli_options *cliopt) {
   xpc_dictionary_set_uuid(dict, vmnet_interface_id_key,
                           cliopt->vmnet_interface_id);
 
+  if (cliopt->vmnet_nat66_prefix != NULL) {
+    xpc_dictionary_set_string(dict, vmnet_nat66_prefix_key,
+                              cliopt->vmnet_nat66_prefix);
+  }
+
   dispatch_queue_t q = dispatch_queue_create(
       "io.github.lima-vm.socket_vmnet.start", DISPATCH_QUEUE_SERIAL);
   dispatch_semaphore_t sem = dispatch_semaphore_create(0);