Remove ula_compat feature

5 files changed, 0 insertions, 22 deletions

diff --git a/README b/README
index 72a2674..0d59952 100644
--- a/README
+++ b/README
@@ -93,7 +93,6 @@ leasetime	string	12h			DHCPv4 address leasetime
 start		integer	100			DHCPv4 pool start
 limit		integer	150			DHCPv4 pool size
 
-ula_compat	bool	0			Announce ULA in compat mode
 ra_default	integer	0			Override default route
 		0: default, 1: ignore no public address, 2: ignore all
 ra_management	integer	1			RA management mode
diff --git a/src/config.c b/src/config.c
index ed80bef..38a3e7a 100644
--- a/src/config.c
+++ b/src/config.c
@@ -32,7 +32,6 @@ enum {
 	IFACE_ATTR_NDP,
 	IFACE_ATTR_DNS,
 	IFACE_ATTR_DOMAIN,
-	IFACE_ATTR_ULA_COMPAT,
 	IFACE_ATTR_RA_DEFAULT,
 	IFACE_ATTR_RA_MANAGEMENT,
 	IFACE_ATTR_RA_OFFLINK,
@@ -60,7 +59,6 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
 	[IFACE_ATTR_NDP] = { .name = "ndp", .type = BLOBMSG_TYPE_STRING },
 	[IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
 	[IFACE_ATTR_DOMAIN] = { .name = "domain", .type = BLOBMSG_TYPE_ARRAY },
-	[IFACE_ATTR_ULA_COMPAT] = { .name = "ula_compat", .type = BLOBMSG_TYPE_BOOL },
 	[IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
 	[IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 },
 	[IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL },
@@ -448,9 +446,6 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
 		}
 	}
 
-	if ((c = tb[IFACE_ATTR_ULA_COMPAT]))
-		iface->deprecate_ula_if_public_avail = blobmsg_get_bool(c);
-
 	if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
 		iface->default_router = blobmsg_get_u32(c);
 
diff --git a/src/dhcpv6-ia.c b/src/dhcpv6-ia.c
index bdaa3da..3d6b786 100644
--- a/src/dhcpv6-ia.c
+++ b/src/dhcpv6-ia.c
@@ -552,10 +552,6 @@ static size_t append_reply(uint8_t *buf, size_t buflen, uint16_t status,
 		if (a) {
 			uint32_t pref = 3600;
 			uint32_t valid = 3600;
-			bool have_non_ula = false;
-			for (size_t i = 0; i < iface->ia_addr_len; ++i)
-				if ((iface->ia_addr[i].addr.s6_addr[0] & 0xfe) != 0xfc)
-					have_non_ula = true;
 
 			for (size_t i = 0; i < iface->ia_addr_len; ++i) {
 				bool match = true;
@@ -580,12 +576,6 @@ static size_t append_reply(uint8_t *buf, size_t buflen, uint16_t status,
 						iface->ia_addr[i].preferred <= (uint32_t)now)
 					continue;
 
-				// ULA-deprecation compatibility workaround
-				if ((iface->ia_addr[i].addr.s6_addr[0] & 0xfe) == 0xfc &&
-						a->length == 128 && have_non_ula &&
-						iface->deprecate_ula_if_public_avail)
-					continue;
-
 				if (prefix_pref > 86400)
 					prefix_pref = 86400;
 
diff --git a/src/odhcpd.h b/src/odhcpd.h
index 727c638..77376cb 100644
--- a/src/odhcpd.h
+++ b/src/odhcpd.h
@@ -130,7 +130,6 @@ struct interface {
 	bool master;
 	bool ignore;
 	bool always_rewrite_dns;
-	bool deprecate_ula_if_public_avail;
 	bool ra_not_onlink;
 	bool no_dynamic_dhcp;
 
diff --git a/src/router.c b/src/router.c
index 7b81f71..a75b847 100644
--- a/src/router.c
+++ b/src/router.c
@@ -345,11 +345,6 @@ static void send_router_advert(struct uloop_timeout *event)
 		adv.h.nd_ra_router_lifetime = 0;
 	}
 
-	if (have_public && iface->deprecate_ula_if_public_avail)
-		for (size_t i = 0; i < cnt; ++i)
-			if ((adv.prefix[i].nd_opt_pi_prefix.s6_addr[0] & 0xfe) == 0xfc)
-				adv.prefix[i].nd_opt_pi_preferred_time = 0;
-
 	// DNS Recursive DNS
 	if (iface->dns_cnt > 0) {
 		dns_addr = iface->dns;