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authorMatija Amidzic <matija.amidzic@sartura.hr>2018-12-21 15:58:47 +0100
committerHans Dedecker <dedeckeh@gmail.com>2019-01-15 11:33:43 +0100
commit7abbed4fba6c9b75ec5331291eb7dc787f99a977 (patch)
tree16f27e93fe6e49c7b99e60eed26d588465ec2f87 /src
parentdd1aefd24fa2b23a3f54a327636e06a782248b66 (diff)
dhcpv6: add setting to choose IA_NA, IA_PD or both
Adds the config options to set if DHCPv6 'stateful addresing' hands out IA_NA (Internet Address - Network Address), IA_PD (Internet Address - Prefix Delegation), both or none. Signed-off-by: Matija Amidzic <matija.amidzic@sartura.hr>
Diffstat (limited to 'src')
-rw-r--r--src/config.c12
-rw-r--r--src/dhcpv6-ia.c6
-rw-r--r--src/odhcpd.h2
3 files changed, 17 insertions, 3 deletions
diff --git a/src/config.c b/src/config.c
index 29d7181..68aacd8 100644
--- a/src/config.c
+++ b/src/config.c
@@ -45,6 +45,8 @@ enum {
IFACE_ATTR_DHCPV4_FORCERECONF,
IFACE_ATTR_DHCPV6_RAW,
IFACE_ATTR_DHCPV6_ASSIGNALL,
+ IFACE_ATTR_DHCPV6_PD,
+ IFACE_ATTR_DHCPV6_NA,
IFACE_ATTR_RA_DEFAULT,
IFACE_ATTR_RA_MANAGEMENT,
IFACE_ATTR_RA_OFFLINK,
@@ -89,6 +91,8 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
[IFACE_ATTR_DHCPV4_FORCERECONF] = { .name = "dhcpv4_forcereconf", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_DHCPV6_RAW] = { .name = "dhcpv6_raw", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_DHCPV6_ASSIGNALL] = { .name ="dhcpv6_assignall", .type = BLOBMSG_TYPE_BOOL },
+ [IFACE_ATTR_DHCPV6_PD] = { .name = "dhcpv6_pd", .type = BLOBMSG_TYPE_BOOL },
+ [IFACE_ATTR_DHCPV6_NA] = { .name = "dhcpv6_na", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_PD_MANAGER] = { .name = "pd_manager", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_PD_CER] = { .name = "pd_cer", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
@@ -216,6 +220,8 @@ static void set_interface_defaults(struct interface *iface)
iface->learn_routes = 1;
iface->dhcpv4_leasetime = 43200;
iface->dhcpv6_assignall = true;
+ iface->dhcpv6_pd = true;
+ iface->dhcpv6_na = true;
iface->ra_managed = RA_MANAGED_MFLAG;
iface->ra_maxinterval = 600;
iface->ra_mininterval = iface->ra_maxinterval/3;
@@ -651,6 +657,12 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
if ((c = tb[IFACE_ATTR_DHCPV6_ASSIGNALL]))
iface->dhcpv6_assignall = blobmsg_get_bool(c);
+ if ((c = tb[IFACE_ATTR_DHCPV6_PD]))
+ iface->dhcpv6_pd = blobmsg_get_bool(c);
+
+ if ((c = tb[IFACE_ATTR_DHCPV6_NA]))
+ iface->dhcpv6_na = 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 3b2dfaf..415ec2a 100644
--- a/src/dhcpv6-ia.c
+++ b/src/dhcpv6-ia.c
@@ -1262,7 +1262,7 @@ ssize_t dhcpv6_handle_ia(uint8_t *buf, size_t buflen, struct interface *iface,
(hdr->msg_type == DHCPV6_MSG_REBIND && !a)) {
bool assigned = !!a;
- if (!a && !iface->no_dynamic_dhcp) {
+ if (!a && !iface->no_dynamic_dhcp && (iface->dhcpv6_pd || iface->dhcpv6_na)) {
/* Create new binding */
a = calloc(1, sizeof(*a) + clid_len);
if (a) {
@@ -1282,10 +1282,10 @@ ssize_t dhcpv6_handle_ia(uint8_t *buf, size_t buflen, struct interface *iface,
odhcpd_urandom(a->key, sizeof(a->key));
memcpy(a->clid_data, clid_data, clid_len);
- if (is_pd)
+ if (is_pd && iface->dhcpv6_pd)
while (!(assigned = assign_pd(iface, a)) &&
!a->managed_size && ++a->length <= 64);
- else
+ else if (is_na && iface->dhcpv6_na)
assigned = assign_na(iface, a);
if (a->managed_size && !assigned)
diff --git a/src/odhcpd.h b/src/odhcpd.h
index 10f26b1..5157f1f 100644
--- a/src/odhcpd.h
+++ b/src/odhcpd.h
@@ -236,6 +236,8 @@ struct interface {
void *dhcpv6_raw;
size_t dhcpv6_raw_len;
bool dhcpv6_assignall;
+ bool dhcpv6_pd;
+ bool dhcpv6_na;
char *upstream;
size_t upstream_len;