diff options
Diffstat (limited to 'interface-ip.c')
| -rw-r--r-- | interface-ip.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/interface-ip.c b/interface-ip.c index 716a093..dcf3390 100644 --- a/interface-ip.c +++ b/interface-ip.c @@ -712,9 +712,16 @@ random_ifaceid(struct in6_addr *addr) addr->s6_addr32[3] = (uint32_t)mrand48(); } -static void +static bool eui64_ifaceid(struct interface *iface, struct in6_addr *addr) { + struct device_settings st; + + device_merge_settings(iface->l3_dev.dev, &st); + + if (!(st.flags & DEV_OPT_MACADDR)) + return false; + /* get mac address */ uint8_t *macaddr = iface->l3_dev.dev->settings.macaddr; uint8_t *ifaceid = addr->s6_addr + 8; @@ -723,11 +730,15 @@ eui64_ifaceid(struct interface *iface, struct in6_addr *addr) ifaceid[3] = 0xff; ifaceid[4] = 0xfe; ifaceid[0] ^= 0x02; + + return true; } -static void +static bool generate_ifaceid(struct interface *iface, struct in6_addr *addr) { + bool ret = true; + /* generate new iface id */ switch (iface->assignment_iface_id_selection) { case IFID_FIXED: @@ -741,9 +752,13 @@ generate_ifaceid(struct interface *iface, struct in6_addr *addr) break; case IFID_EUI64: /* eui64 */ - eui64_ifaceid(iface, addr); + ret = eui64_ifaceid(iface, addr); + break; + default: + ret = false; break; } + return ret; } static void @@ -797,12 +812,15 @@ interface_set_prefix_address(struct device_prefix_assignment *assignment, system_del_route(l3_downlink, &route); system_add_address(l3_downlink, &addr); + assignment->addr = in6addr_any; assignment->enabled = false; } else if (add && (iface->state == IFS_UP || iface->state == IFS_SETUP)) { if (IN6_IS_ADDR_UNSPECIFIED(&addr.addr.in6)) { addr.addr.in6 = prefix->addr; addr.addr.in6.s6_addr32[1] |= htonl(assignment->assigned); - generate_ifaceid(iface, &addr.addr.in6); + if (!generate_ifaceid(iface, &addr.addr.in6)) + return; + assignment->addr = addr.addr.in6; route.addr = addr.addr; } |