From: Roy Marples <roy@marples.name>
Date: Mon, 28 Jan 2013 09:47:40 +0000 (+0000)
Subject: Ensure that nooption correctly woks for routes.
X-Git-Tag: v5.6.7~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ae57bef8b0ae537ae201eb4053016ee631830773;p=thirdparty%2Fdhcpcd.git

Ensure that nooption correctly woks for routes.
---

diff --git a/configure.c b/configure.c
index 8003507a..8325707a 100644
--- a/configure.c
+++ b/configure.c
@@ -573,7 +573,7 @@ add_subnet_route(struct rt *rt, const struct interface *iface)
 }
 
 static struct rt *
-get_routes(const struct interface *iface)
+get_routes(struct interface *iface)
 {
 	struct rt *rt, *nrt = NULL, *r = NULL;
 
@@ -596,8 +596,7 @@ get_routes(const struct interface *iface)
 		return nrt;
 	}
 
-	return get_option_routes(iface->state->new,
-	    iface->name, &iface->state->options->options);
+	return get_option_routes(iface, iface->state->new);
 }
 
 /* Some DHCP servers add set host routes by setting the gateway
@@ -687,7 +686,7 @@ void
 build_routes(void)
 {
 	struct rt *nrs = NULL, *dnr, *or, *rt, *rtn, *rtl, *lrt = NULL;
-	const struct interface *ifp;
+	struct interface *ifp;
 
 	for (ifp = ifaces; ifp; ifp = ifp->next) {
 		if (ifp->state->new == NULL)
diff --git a/dhcp.c b/dhcp.c
index ca564fcb..7b678d5a 100644
--- a/dhcp.c
+++ b/dhcp.c
@@ -789,9 +789,9 @@ route_netmask(uint32_t ip_in)
  * If we have a CSR then we only use that.
  * Otherwise we add static routes and then routers. */
 struct rt *
-get_option_routes(const struct dhcp_message *dhcp,
-    const char *ifname, unsigned long long *opts)
+get_option_routes(struct interface *ifp, const struct dhcp_message *dhcp)
 {
+	struct if_options *ifo = ifp->state->options;
 	const uint8_t *p;
 	const uint8_t *e;
 	struct rt *routes = NULL;
@@ -799,25 +799,29 @@ get_option_routes(const struct dhcp_message *dhcp,
 	int len;
 
 	/* If we have CSR's then we MUST use these only */
-	p = get_option(dhcp, DHO_CSR, &len, NULL);
+	if (!has_option_mask(ifo->nomask, DHO_CSR))
+		p = get_option(dhcp, DHO_CSR, &len, NULL);
+	else
+		p = NULL;
 	/* Check for crappy MS option */
-	if (!p)
+	if (!p && !has_option_mask(ifo->nomask, DHO_MSCSR))
 		p = get_option(dhcp, DHO_MSCSR, &len, NULL);
 	if (p) {
 		routes = decode_rfc3442_rt(len, p);
 		if (routes) {
-			if (!(*opts & DHCPCD_CSR_WARNED)) {
+			if (!(ifo->options & DHCPCD_CSR_WARNED)) {
 				syslog(LOG_DEBUG,
 				    "%s: using Classless Static Routes",
-				    ifname);
-				*opts |= DHCPCD_CSR_WARNED;
+				    ifp->name);
+				ifo->options |= DHCPCD_CSR_WARNED;
 			}
 			return routes;
 		}
 	}
 
 	/* OK, get our static routes first. */
-	p = get_option(dhcp, DHO_STATICROUTE, &len, NULL);
+	if (!has_option_mask(ifo->nomask, DHO_STATICROUTE))
+		p = get_option(dhcp, DHO_STATICROUTE, &len, NULL);
 	if (p) {
 		e = p + len;
 		while (p < e) {
@@ -836,7 +840,10 @@ get_option_routes(const struct dhcp_message *dhcp,
 	}
 
 	/* Now grab our routers */
-	p = get_option(dhcp, DHO_ROUTER, &len, NULL);
+	if (!has_option_mask(ifo->nomask, DHO_ROUTER))
+		p = get_option(dhcp, DHO_ROUTER, &len, NULL);
+	else
+		p = NULL;
 	if (p) {
 		e = p + len;
 		while (p < e) {
diff --git a/dhcp.h b/dhcp.h
index 2d8dcea9..ea6a86e0 100644
--- a/dhcp.h
+++ b/dhcp.h
@@ -186,8 +186,7 @@ int get_option_uint8(uint8_t *, const struct dhcp_message *, uint8_t);
 #define is_bootp(m) (m &&						\
 	    !IN_LINKLOCAL(htonl((m)->yiaddr)) &&			\
 	    get_option_uint8(NULL, m, DHO_MESSAGETYPE) == -1)
-struct rt *get_option_routes(const struct dhcp_message *, const char *,
-    unsigned long long *);
+struct rt *get_option_routes(struct interface *, const struct dhcp_message *);
 ssize_t decode_rfc3397(char *, ssize_t, int, const uint8_t *);
 ssize_t print_string(char *, ssize_t, int, const uint8_t *);
 ssize_t configure_env(char **, const char *, const struct dhcp_message *,