lib/pb-config: Add config_copy

[petitboot] / lib / pb-config / pb-config.c

diff --git a/lib/pb-config/pb-config.c b/lib/pb-config/pb-config.c
index 915a01d47abaaab8a7929eef6f2abddc7e90d1fb..9f696d55704495e568328ac17e4202087cdd1ffb 100644 (file)
--- a/lib/pb-config/pb-config.c
+++ b/lib/pb-config/pb-config.c
@@ -1,4 +1,6 @@
 
+#include <string.h>
+
 #include <log/log.h>
 #include <types/types.h>
 #include <talloc/talloc.h>
@@ -29,6 +31,67 @@ void config_set_defaults(struct config *config)
 
 }
 
+static struct interface_config *config_copy_interface(struct config *ctx,
+               struct interface_config *src)
+{
+       struct interface_config *dest = talloc(ctx, struct interface_config);
+
+       memcpy(dest->hwaddr, src->hwaddr, sizeof(src->hwaddr));
+       dest->ignore = src->ignore;
+
+       if (dest->ignore)
+               return dest;
+
+       dest->method = src->method;
+
+       switch (src->method) {
+       case CONFIG_METHOD_DHCP:
+               break;
+       case CONFIG_METHOD_STATIC:
+               dest->static_config.address =
+                       talloc_strdup(dest, src->static_config.address);
+               dest->static_config.gateway =
+                       talloc_strdup(dest, src->static_config.gateway);
+               break;
+       }
+
+       return dest;
+}
+
+struct config *config_copy(void *ctx, const struct config *src)
+{
+       struct config *dest;
+       unsigned int i;
+
+       dest = talloc(ctx, struct config);
+       dest->autoboot_enabled = src->autoboot_enabled;
+       dest->autoboot_timeout_sec = src->autoboot_timeout_sec;
+
+       dest->network.n_interfaces = src->network.n_interfaces;
+       dest->network.interfaces = talloc_array(dest, struct interface_config *,
+                                       dest->network.n_interfaces);
+       dest->network.n_dns_servers = src->network.n_dns_servers;
+       dest->network.dns_servers = talloc_array(dest, const char *,
+                                       dest->network.n_dns_servers);
+
+       for (i = 0; i < src->network.n_interfaces; i++)
+               dest->network.interfaces[i] = config_copy_interface(dest,
+                               src->network.interfaces[i]);
+
+       for (i = 0; i < src->network.n_dns_servers; i++)
+               dest->network.dns_servers[i] = talloc_strdup(dest,
+                               src->network.dns_servers[i]);
+
+       dest->n_boot_priorities = src->n_boot_priorities;
+       dest->boot_priorities = talloc_array(dest, struct boot_priority,
+                       src->n_boot_priorities);
+
+       for (i = 0; i < src->n_boot_priorities; i++)
+               dest->boot_priorities[i].type = src->boot_priorities[i].type;
+
+       return dest;
+}
+
 void dump_config(struct config *config);
 void dump_config(struct config *config)
 {