Blame SOURCES/dhcp-4.2.4-dhclient-options.patch

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diff -up dhcp-4.2.1b1/client/dhclient.8.man dhcp-4.2.1b1/client/dhclient.8
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--- dhcp-4.2.1b1/client/dhclient.8.man	2010-07-14 22:09:34.000000000 +0200
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+++ dhcp-4.2.1b1/client/dhclient.8	2011-01-27 18:19:07.000000000 +0100
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@@ -115,6 +115,33 @@ dhclient - Dynamic Host Configuration Pr
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 .B -w
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 ]
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 [
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+.B -B
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+]
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+[
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+.B -I
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+.I dhcp-client-identifier
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+]
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+[
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+.B -H
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+.I host-name
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+]
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+[
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+.B -F
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+.I fqdn.fqdn
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+]
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+[
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+.B -V
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+.I vendor-class-identifier
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+]
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+[
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+.B -R
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+.I request-option-list
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+]
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+[
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+.B -timeout
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+.I timeout
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+]
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+[
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 .B -v
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 ]
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 [
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@@ -264,6 +291,69 @@ not to exit when it doesn't find any suc
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 program can then be used to notify the client when a network interface
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 has been added or removed, so that the client can attempt to configure an IP
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 address on that interface.
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+
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+.TP
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+.BI \-B
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+Set the BOOTP broadcast flag in request packets so servers will always
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+broadcast replies.
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+
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+.TP
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+.BI \-I\ <dhcp-client-identifier>
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+Specify the dhcp-client-identifier option to send to the DHCP server.
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+
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+.TP
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+.BI \-H\ <host-name>
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+Specify the host-name option to send to the DHCP server.  The host-name
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+string only contains the client's hostname prefix, to which the server will
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+append the ddns-domainname or domain-name options, if any, to derive the
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+fully qualified domain name of the client.  The
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+.B -H
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+option cannot be used with the
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+.B -F
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+option.
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+
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+.TP
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+.BI \-F\ <fqdn.fqdn>
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+Specify the fqdn.fqdn option to send to the DHCP server.  This option cannot
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+be used with the
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+.B -H
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+option.  The fqdn.fqdn option must specify the complete domain name of the
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+client host, which the server may use for dynamic DNS updates.
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+
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+.TP
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+.BI \-V\ <vendor-class-identifier>
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+Specify the vendor-class-identifier option to send to the DHCP server.
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+
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+.TP
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+.BI \-R\ <option>[,<option>...]
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+Specify the list of options the client is to request from the server.  The
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+option list must be a single string consisting of option names separated
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+by at least one command and optional space characters.  The default option
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+list is:
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+
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+.BR
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+    subnet-mask, broadcast-address, time-offset, routers,
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+.BR
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+    domain-search, domain-name, domain-name-servers, host-name, 
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+.BR
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+    nis-domain, nis-servers, ntp-servers, interface-mtu
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+
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+.TP
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+.B -R
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+option does not append options to the default request, it overrides the
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+default request list.  Keep this in mind if you want to request an
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+additional option besides the default request list.  You will have to
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+specify all option names for the
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+.B -R
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+parameter.
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+
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+.TP
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+.BI \-timeout\ <timeout>
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+Specify the time after which
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+.B dhclient
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+will decide that no DHCP servers can be contacted when no responses have been
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+received.
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+
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 .TP
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 .BI \-n
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 Do not configure any interfaces.  This is most likely to be useful in
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diff -up dhcp-4.2.4-P2/client/clparse.c.options dhcp-4.2.4-P2/client/clparse.c
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--- dhcp-4.2.4-P2/client/clparse.c.options	2012-08-24 21:11:21.000000000 +0200
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+++ dhcp-4.2.4-P2/client/clparse.c	2012-09-26 10:34:27.140049896 +0200
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@@ -154,6 +154,7 @@ isc_result_t read_client_conf ()
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 	/* Requested lease time, used by DHCPv6 (DHCPv4 uses the option cache)
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 	 */
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 	top_level_config.requested_lease = 7200;
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+	top_level_config.bootp_broadcast_always = 0;
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 	group_allocate (&top_level_config.on_receipt, MDL);
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 	if (!top_level_config.on_receipt)
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@@ -320,7 +321,8 @@ void read_client_leases ()
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 	interface-declaration |
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 	LEASE client-lease-statement |
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 	ALIAS client-lease-statement |
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-	KEY key-definition */
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+	KEY key-definition |
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+	BOOTP_BROADCAST_ALWAYS */
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 void parse_client_statement (cfile, ip, config)
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 	struct parse *cfile;
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@@ -739,6 +741,12 @@ void parse_client_statement (cfile, ip,
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 		parse_reject_statement (cfile, config);
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 		return;
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+	      case BOOTP_BROADCAST_ALWAYS:
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+		token = next_token(&val, (unsigned*)0, cfile);
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+		config -> bootp_broadcast_always = 1;
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+		parse_semi (cfile);
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+		return;
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+
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 	      default:
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 		lose = 0;
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 		stmt = (struct executable_statement *)0;
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diff -up dhcp-4.2.4-P2/client/dhclient.c.options dhcp-4.2.4-P2/client/dhclient.c
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--- dhcp-4.2.4-P2/client/dhclient.c.options	2012-08-28 04:13:03.000000000 +0200
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+++ dhcp-4.2.4-P2/client/dhclient.c	2012-09-26 10:36:10.396967531 +0200
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@@ -39,6 +39,12 @@
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 #include <limits.h>
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 #include <dns/result.h>
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+/*
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+ * Defined in stdio.h when _GNU_SOURCE is set, but we don't want to define
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+ * that when building ISC code.
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+ */
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+extern int asprintf(char **strp, const char *fmt, ...);
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+
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 TIME default_lease_time = 43200; /* 12 hours... */
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 TIME max_lease_time = 86400; /* 24 hours... */
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@@ -87,6 +93,9 @@ int wanted_ia_na = -1;		/* the absolute
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 int wanted_ia_ta = 0;
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 int wanted_ia_pd = 0;
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 char *mockup_relay = NULL;
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+int bootp_broadcast_always = 0;
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+
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+extern struct option *default_requested_options[];
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 void run_stateless(int exit_mode);
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@@ -123,6 +132,15 @@ main(int argc, char **argv) {
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 	int local_family_set = 0;
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 #endif /* DHCPv6 */
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 	char *s;
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+	char *dhcp_client_identifier_arg = NULL;
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+	char *dhcp_host_name_arg = NULL;
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+	char *dhcp_fqdn_arg = NULL;
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+	char *dhcp_vendor_class_identifier_arg = NULL;
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+	char *dhclient_request_options = NULL;
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+
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+	int timeout_arg = 0;
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+	char *arg_conf = NULL;
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+	int arg_conf_len = 0;
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 	/* Initialize client globals. */
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 	memset(&default_duid, 0, sizeof(default_duid));
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@@ -310,6 +328,88 @@ main(int argc, char **argv) {
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 		} else if (!strcmp(argv[i], "--version")) {
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 			log_info("isc-dhclient-%s", PACKAGE_VERSION);
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 			exit(0);
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+		} else if (!strcmp(argv[i], "-I")) {
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+			if ((++i == argc) || (argv[i] == NULL) || (*(argv[i])=='\0')) {
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+				usage();
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+				exit(1);
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+			}
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+
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+			if (strlen(argv[i]) >= DHCP_MAX_OPTION_LEN) {
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+				log_error("-I option dhcp-client-identifier string \"%s\" is too long - maximum length is: %d", argv[i], DHCP_MAX_OPTION_LEN-1);
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+				exit(1);
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+			}
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+
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+			dhcp_client_identifier_arg = argv[i];
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+		} else if (!strcmp(argv[i], "-B")) {
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+			bootp_broadcast_always = 1;
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+		} else if (!strcmp(argv[i], "-H")) {
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+			if ((++i == argc) || (argv[i] == NULL) || (*(argv[i])=='\0')) {
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+				usage();
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+				exit(1);
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+			}
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+
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+			if (strlen(argv[i]) >= DHCP_MAX_OPTION_LEN) {
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+				log_error("-H option host-name string \"%s\" is too long - maximum length is: %d", argv[i], DHCP_MAX_OPTION_LEN-1);
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+				exit(1);
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+			}
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+
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+			if (dhcp_host_name_arg != NULL) {
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+				log_error("The -H <host-name> and -F <fqdn> arguments are mutually exclusive");
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+				exit(1);
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+			}
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+
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+			dhcp_host_name_arg = argv[i];
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+		} else if (!strcmp(argv[i], "-F")) {
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+			if ((++i == argc) || (argv[i] == NULL) || (*(argv[i])=='\0')) {
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+				usage();
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+				exit(1);
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+			}
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+
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+			if (strlen(argv[i]) >= DHCP_MAX_OPTION_LEN) {
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+				log_error("-F option fqdn.fqdn string \"%s\" is too long - maximum length is: %d", argv[i], DHCP_MAX_OPTION_LEN-1);
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+				exit(1);
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+			}
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+
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+			if (dhcp_fqdn_arg != NULL) {
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+				log_error("Only one -F <fqdn> argument can be specified");
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+				exit(1);
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+			}
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+
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+			if (dhcp_host_name_arg != NULL) {
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+				log_error("The -F <fqdn> and -H <host-name> arguments are mutually exclusive");
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+				exit(1);
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+			}
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+
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+			dhcp_fqdn_arg = argv[i];
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+		} else if (!strcmp(argv[i], "-timeout")) {
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+			if ((++i == argc) || (argv[i] == NULL) || (*(argv[i])=='\0')) {
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+				usage();
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+				exit(1);
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+			}
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+
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+			if ((timeout_arg = atoi(argv[i])) <= 0) {
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+				log_error("timeout option must be > 0 - bad value: %s",argv[i]);
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+				exit(1);
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+			}
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+		} else if (!strcmp(argv[i], "-V")) {
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+			if ((++i == argc) || (argv[i] == NULL) || (*(argv[i])=='\0')) {
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+				usage();
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+				exit(1);
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+			}
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+
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+			if (strlen(argv[i]) >= DHCP_MAX_OPTION_LEN) {
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+				log_error("-V option vendor-class-identifier string \"%s\" is too long - maximum length is: %d", argv[i], DHCP_MAX_OPTION_LEN-1);
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+				exit(1);
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+			}
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+
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+			dhcp_vendor_class_identifier_arg = argv[i];
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+		} else if (!strcmp(argv[i], "-R")) {
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+			if ((++i == argc) || (argv[i] == NULL) || (*(argv[i])=='\0')) {
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+				usage();
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+				exit(1);
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+			}
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+
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+			dhclient_request_options = argv[i];
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 		} else if (argv[i][0] == '-') {
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 		    usage();
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 		} else if (interfaces_requested < 0) {
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@@ -484,6 +584,156 @@ main(int argc, char **argv) {
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 	/* Parse the dhclient.conf file. */
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 	read_client_conf();
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+	/* Parse any extra command line configuration arguments: */
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+	if ((dhcp_client_identifier_arg != NULL) && (*dhcp_client_identifier_arg != '\0')) {
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+		arg_conf_len = asprintf(&arg_conf, "send dhcp-client-identifier \"%s\";", dhcp_client_identifier_arg);
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+
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+		if ((arg_conf == 0) || (arg_conf_len <= 0))
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+			log_fatal("Unable to send -I option dhcp-client-identifier");
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+	}
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+
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+	if ((dhcp_host_name_arg != NULL) && (*dhcp_host_name_arg != '\0')) {
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+		if (arg_conf == 0) {
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+			arg_conf_len = asprintf(&arg_conf, "send host-name \"%s\";", dhcp_host_name_arg);
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+
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+			if ((arg_conf == 0) || (arg_conf_len <= 0))
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+				log_fatal("Unable to send -H option host-name");
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+		} else {
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+			char *last_arg_conf = arg_conf;
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+			arg_conf = NULL;
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+			arg_conf_len = asprintf(&arg_conf, "%s\nsend host-name \"%s\";", last_arg_conf, dhcp_host_name_arg);
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+
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+			if ((arg_conf == 0) || (arg_conf_len <= 0))
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+				log_fatal("Unable to send -H option host-name");
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+
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+			free(last_arg_conf);
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+		}
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+	}
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+
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+	if ((dhcp_fqdn_arg != NULL) && (*dhcp_fqdn_arg != '\0')) {
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+		if (arg_conf == 0) {
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+			arg_conf_len = asprintf(&arg_conf,  "send fqdn.fqdn \"%s\";", dhcp_fqdn_arg);
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+
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+			if ((arg_conf == 0) || (arg_conf_len <= 0))
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+				log_fatal("Unable to send -F option fqdn.fqdn");
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+		} else {
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+			char *last_arg_conf = arg_conf;
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+			arg_conf = NULL;
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+			arg_conf_len = asprintf(&arg_conf, "%s\nsend fqdn.fqdn \"%s\";", last_arg_conf, dhcp_fqdn_arg);
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+
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+			if ((arg_conf == 0)  || (arg_conf_len <= 0))
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+				log_fatal("Unable to send -F option fqdn.fqdn");
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+
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+			free(last_arg_conf);
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+		}
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+	}
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+
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+	if (timeout_arg) {
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+		if (arg_conf == 0) {
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+			arg_conf_len = asprintf(&arg_conf,  "timeout %d;", timeout_arg);
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+
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+			if ((arg_conf == 0) || (arg_conf_len <= 0))
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+				log_fatal("Unable to process -timeout timeout argument");
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+		} else {
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+			char *last_arg_conf = arg_conf;
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+			arg_conf = NULL;
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+			arg_conf_len = asprintf(&arg_conf, "%s\ntimeout %d;", last_arg_conf, timeout_arg);
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+
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+			if ((arg_conf == 0) || (arg_conf_len == 0))
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+				log_fatal("Unable to process -timeout timeout argument");
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+
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+			free(last_arg_conf);
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+		}
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+	}
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+
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+	if ((dhcp_vendor_class_identifier_arg != NULL) && (*dhcp_vendor_class_identifier_arg != '\0')) {
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+		if (arg_conf == 0) {
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+			arg_conf_len = asprintf(&arg_conf,  "send vendor-class-identifier \"%s\";", dhcp_vendor_class_identifier_arg);
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+
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+			if ((arg_conf == 0) || (arg_conf_len <= 0))
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+				log_fatal("Unable to send -V option vendor-class-identifier");
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+		} else {
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+			char *last_arg_conf = arg_conf;
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+			arg_conf = NULL;
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+			arg_conf_len = asprintf(&arg_conf, "%s\nsend vendor-class-identifier \"%s\";", last_arg_conf, dhcp_vendor_class_identifier_arg);
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+
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+			if ((arg_conf == 0) || (arg_conf_len <= 0))
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+				log_fatal("Unable to send -V option vendor-class-identifier");
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+
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+			free(last_arg_conf);
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+		}
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+	}
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+
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+	if (dhclient_request_options != NULL) {
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+		if (arg_conf == 0) {
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+			arg_conf_len = asprintf(&arg_conf,  "request %s;", dhclient_request_options);
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+
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+			if ((arg_conf == 0) || (arg_conf_len <= 0))
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+				log_fatal("Unable to parse -R <request options list> argument");
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+		} else {
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+			char *last_arg_conf = arg_conf;
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+			arg_conf = NULL;
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+			arg_conf_len = asprintf(&arg_conf, "%s\nrequest %s;", last_arg_conf, dhclient_request_options);
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+
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+			if ((arg_conf == 0)  || (arg_conf_len <= 0))
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+				log_fatal("Unable to parse -R <request options list> argument");
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+
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+			free(last_arg_conf);
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+		}
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+	}
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+
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+	if (arg_conf) {
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+		if (arg_conf_len == 0)
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+			if ((arg_conf_len = strlen(arg_conf)) == 0)
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+				/* huh ? cannot happen ! */
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+				log_fatal("Unable to process -I/-H/-F/-timeout/-V/-R configuration arguments");
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+
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+		/* parse the extra dhclient.conf configuration arguments
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+		 * into top level config: */
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+		struct parse *cfile = (struct parse *)0;
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+		const char *val = NULL;
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+		int token;
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+
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+		status = new_parse(&cfile, -1, arg_conf, arg_conf_len, "extra dhclient -I/-H/-F/-timeout/-V/-R configuration arguments", 0);
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+
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+		if ((status != ISC_R_SUCCESS) || (cfile -> warnings_occurred))
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+			log_fatal("Cannot parse -I/-H/-F/-timeout/-V/-R configuration arguments !");
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+		/* more detailed parse failures will be logged */
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+
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+		do {
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+			token = peek_token(&val, (unsigned *)0, cfile);
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+			if (token == END_OF_FILE)
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+				break;
c8bb8f
+
c8bb8f
+			parse_client_statement(cfile, (struct interface_info *)0, &top_level_config);
c8bb8f
+		} while (1);
c8bb8f
+
c8bb8f
+		if (cfile -> warnings_occurred)
c8bb8f
+			log_fatal("Cannot parse -I/-H/-F/-timeout/-V/-R configuration arguments !");
c8bb8f
+		end_parse(&cfile);
c8bb8f
+
c8bb8f
+		if (timeout_arg) {
c8bb8f
+			/* we just set the toplevel timeout, but per-client
c8bb8f
+			 * timeouts may still be at defaults.
c8bb8f
+			 */
c8bb8f
+			for (ip=interfaces; ip; ip = ip->next) {
c8bb8f
+				if (ip->client->config->timeout == 60)
c8bb8f
+					ip->client->config->timeout = timeout_arg;
c8bb8f
+			}
c8bb8f
+		}
c8bb8f
+
c8bb8f
+		if ((dhclient_request_options != 0) && (top_level_config.requested_options != default_requested_options)) {
c8bb8f
+			for (ip=interfaces; ip; ip = ip->next) {
c8bb8f
+				if (ip->client->config->requested_options == default_requested_options)
c8bb8f
+					ip->client->config->requested_options = top_level_config.requested_options;
c8bb8f
+			}
c8bb8f
+		}
c8bb8f
+
c8bb8f
+		free(arg_conf);
c8bb8f
+		arg_conf = NULL;
c8bb8f
+		arg_conf_len = 0;
c8bb8f
+	}
c8bb8f
+
c8bb8f
 	/* Parse the lease database. */
c8bb8f
 	read_client_leases();
c8bb8f
 
c8bb8f
@@ -715,6 +965,10 @@ static void usage()
c8bb8f
 		  "                [-s server-addr] [-cf config-file] "
c8bb8f
 		  "[-lf lease-file]\n"
c8bb8f
 		  "                [-pf pid-file] [--no-pid] [-e VAR=val]\n"
c8bb8f
+		  "                [-I <dhcp-client-identifier>] [-B]\n"
c8bb8f
+		  "                [-H <host-name> | -F <fqdn.fqdn>] [-timeout <timeout>]\n"
c8bb8f
+		  "                [-V <vendor-class-identifier>]\n"
c8bb8f
+		  "                [-R <request option list>]\n"
c8bb8f
 		  "                [-sf script-file] [interface]");
c8bb8f
 }
c8bb8f
 
c8bb8f
@@ -2421,7 +2675,8 @@ void make_discover (client, lease)
c8bb8f
 	client -> packet.xid = random ();
c8bb8f
 	client -> packet.secs = 0; /* filled in by send_discover. */
c8bb8f
 
c8bb8f
-	if (can_receive_unicast_unconfigured (client -> interface))
c8bb8f
+	if ((!(bootp_broadcast_always || client->config->bootp_broadcast_always))
c8bb8f
+	    && can_receive_unicast_unconfigured(client->interface))
c8bb8f
 		client -> packet.flags = 0;
c8bb8f
 	else
c8bb8f
 		client -> packet.flags = htons (BOOTP_BROADCAST);
c8bb8f
@@ -2505,7 +2760,9 @@ void make_request (client, lease)
c8bb8f
 	} else {
c8bb8f
 		memset (&client -> packet.ciaddr, 0,
c8bb8f
 			sizeof client -> packet.ciaddr);
c8bb8f
-		if (can_receive_unicast_unconfigured (client -> interface))
c8bb8f
+		if ((!(bootp_broadcast_always ||
c8bb8f
+		    client ->config->bootp_broadcast_always)) &&
c8bb8f
+		    can_receive_unicast_unconfigured (client -> interface))
c8bb8f
 			client -> packet.flags = 0;
c8bb8f
 		else
c8bb8f
 			client -> packet.flags = htons (BOOTP_BROADCAST);
c8bb8f
@@ -2567,7 +2824,8 @@ void make_decline (client, lease)
c8bb8f
 	client -> packet.hops = 0;
c8bb8f
 	client -> packet.xid = client -> xid;
c8bb8f
 	client -> packet.secs = 0; /* Filled in by send_request. */
c8bb8f
-	if (can_receive_unicast_unconfigured (client -> interface))
c8bb8f
+	if ((!(bootp_broadcast_always || client->config-> bootp_broadcast_always))
c8bb8f
+	    && can_receive_unicast_unconfigured (client->interface))
c8bb8f
 		client -> packet.flags = 0;
c8bb8f
 	else
c8bb8f
 		client -> packet.flags = htons (BOOTP_BROADCAST);
c8bb8f
diff -up dhcp-4.2.4-P2/common/conflex.c.options dhcp-4.2.4-P2/common/conflex.c
c8bb8f
--- dhcp-4.2.4-P2/common/conflex.c.options	2012-08-28 04:13:03.000000000 +0200
c8bb8f
+++ dhcp-4.2.4-P2/common/conflex.c	2012-09-26 10:34:27.142049876 +0200
c8bb8f
@@ -808,6 +808,8 @@ intern(char *atom, enum dhcp_token dfv)
c8bb8f
 			return BALANCE;
c8bb8f
 		if (!strcasecmp (atom + 1, "ound"))
c8bb8f
 			return BOUND;
c8bb8f
+		if (!strcasecmp (atom + 1, "ootp-broadcast-always"))
c8bb8f
+			return BOOTP_BROADCAST_ALWAYS;
c8bb8f
 		break;
c8bb8f
 	      case 'c':
c8bb8f
 		if (!strcasecmp(atom + 1, "ase"))
c8bb8f
diff -up dhcp-4.2.4-P2/includes/dhcpd.h.options dhcp-4.2.4-P2/includes/dhcpd.h
c8bb8f
--- dhcp-4.2.4-P2/includes/dhcpd.h.options	2012-08-28 04:13:22.000000000 +0200
c8bb8f
+++ dhcp-4.2.4-P2/includes/dhcpd.h	2012-09-26 10:34:27.143049865 +0200
c8bb8f
@@ -1153,6 +1153,9 @@ struct client_config {
c8bb8f
 	int do_forward_update;		/* If nonzero, and if we have the
c8bb8f
 					   information we need, update the
c8bb8f
 					   A record for the address we get. */
c8bb8f
+
c8bb8f
+	int bootp_broadcast_always;	/* If nonzero, always set the BOOTP_BROADCAST
c8bb8f
+					   flag in requests */
c8bb8f
 };
c8bb8f
 
c8bb8f
 /* Per-interface state used in the dhcp client... */
c8bb8f
diff -up dhcp-4.2.4-P2/includes/dhctoken.h.options dhcp-4.2.4-P2/includes/dhctoken.h
c8bb8f
--- dhcp-4.2.4-P2/includes/dhctoken.h.options	2012-08-28 04:13:03.000000000 +0200
c8bb8f
+++ dhcp-4.2.4-P2/includes/dhctoken.h	2012-09-26 10:34:27.144049854 +0200
c8bb8f
@@ -364,7 +364,8 @@ enum dhcp_token {
c8bb8f
 	GETHOSTBYNAME = 665,
c8bb8f
 	PRIMARY6 = 666,
c8bb8f
 	SECONDARY6 = 667,
c8bb8f
-	TOKEN_INFINIBAND = 668
c8bb8f
+	TOKEN_INFINIBAND = 668,
c8bb8f
+	BOOTP_BROADCAST_ALWAYS = 669
c8bb8f
 };
c8bb8f
 
c8bb8f
 #define is_identifier(x)	((x) >= FIRST_TOKEN &&	\