1 files changed, 121 insertions, 0 deletions
diff --git a/src/pluto/myid.c b/src/pluto/myid.c
new file mode 100644
index 000000000..ad4eefd15
--- /dev/null
+++ b/src/pluto/myid.c
@@ -0,0 +1,121 @@
+/* identity representation, as in IKE ID Payloads (RFC 2407 DOI 4.6.2.1)
+ * Copyright (C) 1999-2001  D. Hugh Redelmeier
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include <errno.h>
+#include <unistd.h>
+
+#ifndef HOST_NAME_MAX        /* POSIX 1003.1-2001 says <unistd.h> defines this */
+# define HOST_NAME_MAX  255 /* upper bound, according to SUSv2 */
+#endif
+
+#include <utils/identification.h>
+
+#include <freeswan.h>
+
+#include "myid.h"
+#include "constants.h"
+#include "defs.h"
+#include "log.h"
+#include "connections.h"
+#include "packet.h"
+#include "whack.h"
+
+enum myid_state myid_state = MYID_UNKNOWN;
+
+identification_t *myids[MYID_SPECIFIED+1];    /* %myid */
+
+/**
+ * Fills in myid from environment variable IPSECmyid or defaultrouteaddr
+ */
+void init_myid(void)
+{
+	myid_state = MYID_UNKNOWN;
+	{
+		enum myid_state s;
+
+		for (s = MYID_UNKNOWN; s <= MYID_SPECIFIED; s++)
+		{
+			myids[s] = identification_create_from_string("%any");
+		}
+	}
+	set_myid(MYID_SPECIFIED, getenv("IPSECmyid"));
+	set_myid(MYID_IP, getenv("defaultrouteaddr"));
+	set_myFQDN();
+}
+
+/**
+ *  Free myid module
+ */
+void free_myid(void)
+{
+	enum myid_state s;
+
+	for (s = MYID_UNKNOWN; s <= MYID_SPECIFIED; s++)
+	{
+		DESTROY_IF(myids[s]);
+	}
+}
+
+void set_myid(enum myid_state s, char *idstr)
+{
+	if (idstr)
+	{
+		myids[s]->destroy(myids[s]);
+ 		myids[s] = identification_create_from_string(idstr);
+		if (s == MYID_SPECIFIED)
+		{
+				myid_state = MYID_SPECIFIED;
+		}
+	}
+}
+
+void set_myFQDN(void)
+{
+	char FQDN[HOST_NAME_MAX + 1];
+	int r = gethostname(FQDN, sizeof(FQDN));
+	size_t len;
+
+	if (r != 0)
+	{
+		log_errno((e, "gethostname() failed in set_myFQDN"));
+	}
+	else
+	{
+		FQDN[sizeof(FQDN) - 1] = '\0';  /* insurance */
+		len = strlen(FQDN);
+
+		if (len > 0 && FQDN[len-1] == '.')
+		{
+			/* nuke trailing . */
+			FQDN[len-1] = '\0';
+		}
+		if (!strcaseeq(FQDN, "localhost.localdomain"))
+		{
+			myids[MYID_HOSTNAME]->destroy(myids[MYID_HOSTNAME]);
+			myids[MYID_HOSTNAME] = identification_create_from_string(FQDN);
+		}
+	}
+}
+
+void show_myid_status(void)
+{
+	whack_log(RC_COMMENT, "%%myid = '%Y'", myids[myid_state]);
+}
+
+/*
+ * Local Variables:
+ * c-basic-offset:4
+ * c-style: pluto
+ * End:
+ */