diff options
Diffstat (limited to 'src/ndp.c')
| -rw-r--r-- | src/ndp.c | 32 |
1 files changed, 16 insertions, 16 deletions
@@ -41,7 +41,7 @@ static void handle_solicit(void *addr, void *data, size_t len, static int ping_socket = -1; -// Filter ICMPv6 messages of type neighbor soliciation +/* Filter ICMPv6 messages of type neighbor soliciation */ static struct sock_filter bpf[] = { BPF_STMT(BPF_LD | BPF_B | BPF_ABS, offsetof(struct ip6_hdr, ip6_nxt)), BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, IPPROTO_ICMPV6, 0, 3), @@ -54,13 +54,13 @@ static struct sock_filter bpf[] = { static const struct sock_fprog bpf_prog = {sizeof(bpf) / sizeof(*bpf), bpf}; static struct netevent_handler ndp_netevent_handler = { .cb = ndp_netevent_cb, }; -// Initialize NDP-proxy +/* Initialize NDP-proxy */ int ndp_init(void) { struct icmp6_filter filt; int val = 2, ret = 0; - // Open ICMPv6 socket + /* Open ICMPv6 socket */ ping_socket = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6); if (ping_socket < 0) { syslog(LOG_ERR, "socket(AF_INET6): %m"); @@ -75,7 +75,7 @@ int ndp_init(void) goto out; } - // This is required by RFC 4861 + /* This is required by RFC 4861 */ val = 255; if (setsockopt(ping_socket, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &val, sizeof(val)) < 0) { @@ -91,7 +91,7 @@ int ndp_init(void) goto out; } - // Filter all packages, we only want to send + /* Filter all packages, we only want to send */ ICMP6_FILTER_SETBLOCKALL(&filt); if (setsockopt(ping_socket, IPPROTO_ICMPV6, ICMP6_FILTER, &filt, sizeof(filt)) < 0) { @@ -192,7 +192,7 @@ int ndp_setup_interface(struct interface *iface, bool enable) iface->ndp_event.handle_dgram = handle_solicit; odhcpd_register(&iface->ndp_event); - // If we already were enabled dump is unnecessary, if not do dump + /* If we already were enabled dump is unnecessary, if not do dump */ if (!dump_neigh) netlink_dump_neigh_table(false); else @@ -259,8 +259,8 @@ static void ndp_netevent_cb(unsigned long event, struct netevent_handler_info *i } } -// Send an ICMP-ECHO. This is less for actually pinging but for the -// neighbor cache to be kept up-to-date. +/* Send an ICMP-ECHO. This is less for actually pinging but for the + * neighbor cache to be kept up-to-date. */ static void ping6(struct in6_addr *addr, const struct interface *iface) { @@ -277,7 +277,7 @@ static void ping6(struct in6_addr *addr, netlink_setup_route(addr, 128, iface->ifindex, NULL, 128, false); } -// Handle solicitations +/* Handle solicitations */ static void handle_solicit(void *addr, void *data, size_t len, struct interface *iface, _unused void *dest) { @@ -287,12 +287,12 @@ static void handle_solicit(void *addr, void *data, size_t len, char ipbuf[INET6_ADDRSTRLEN]; uint8_t mac[6]; - // Solicitation is for duplicate address detection + /* Solicitation is for duplicate address detection */ bool ns_is_dad = IN6_IS_ADDR_UNSPECIFIED(&ip6->ip6_src); - // Don't process solicit messages on non relay interfaces - // Don't forward any non-DAD solicitation for external ifaces - // TODO: check if we should even forward DADs for them + /* Don't process solicit messages on non relay interfaces + * Don't forward any non-DAD solicitation for external ifaces + * TODO: check if we should even forward DADs for them */ if (iface->ndp != MODE_RELAY || (iface->external && !ns_is_dad)) return; @@ -302,14 +302,14 @@ static void handle_solicit(void *addr, void *data, size_t len, if (IN6_IS_ADDR_LINKLOCAL(&req->nd_ns_target) || IN6_IS_ADDR_LOOPBACK(&req->nd_ns_target) || IN6_IS_ADDR_MULTICAST(&req->nd_ns_target)) - return; // Invalid target + return; /* Invalid target */ inet_ntop(AF_INET6, &req->nd_ns_target, ipbuf, sizeof(ipbuf)); syslog(LOG_DEBUG, "Got a NS for %s%%%s", ipbuf, iface->ifname); odhcpd_get_mac(iface, mac); if (!memcmp(ll->sll_addr, mac, sizeof(mac))) - return; // Looped back + return; /* Looped back */ struct interface *c; list_for_each_entry(c, &interfaces, head) @@ -318,7 +318,7 @@ static void handle_solicit(void *addr, void *data, size_t len, ping6(&req->nd_ns_target, c); } -// Use rtnetlink to modify kernel routes +/* Use rtnetlink to modify kernel routes */ static void setup_route(struct in6_addr *addr, struct interface *iface, bool add) { char ipbuf[INET6_ADDRSTRLEN]; |