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-rw-r--r--src/router.c64
1 files changed, 32 insertions, 32 deletions
diff --git a/src/router.c b/src/router.c
index e52fffd..777cbc0 100644
--- a/src/router.c
+++ b/src/router.c
@@ -48,7 +48,7 @@ int router_init(void)
struct icmp6_filter filt;
int ret = 0;
- // Open ICMPv6 socket
+ /* Open ICMPv6 socket */
router_event.uloop.fd = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
if (router_event.uloop.fd < 0) {
syslog(LOG_ERR, "socket(AF_INET6): %m");
@@ -56,7 +56,7 @@ int router_init(void)
goto out;
}
- // Let the kernel compute our checksums
+ /* Let the kernel compute our checksums */
int val = 2;
if (setsockopt(router_event.uloop.fd, IPPROTO_RAW, IPV6_CHECKSUM,
&val, sizeof(val)) < 0) {
@@ -65,7 +65,7 @@ int router_init(void)
goto out;
}
- // This is required by RFC 4861
+ /* This is required by RFC 4861 */
val = 255;
if (setsockopt(router_event.uloop.fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
&val, sizeof(val)) < 0) {
@@ -81,7 +81,7 @@ int router_init(void)
goto out;
}
- // We need to know the source interface
+ /* We need to know the source interface */
val = 1;
if (setsockopt(router_event.uloop.fd, IPPROTO_IPV6, IPV6_RECVPKTINFO,
&val, sizeof(val)) < 0) {
@@ -97,7 +97,7 @@ int router_init(void)
goto out;
}
- // Don't loop back
+ /* Don't loop back */
val = 0;
if (setsockopt(router_event.uloop.fd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
&val, sizeof(val)) < 0) {
@@ -106,7 +106,7 @@ int router_init(void)
goto out;
}
- // Filter ICMPv6 package types
+ /* Filter ICMPv6 package types */
ICMP6_FILTER_SETBLOCKALL(&filt);
ICMP6_FILTER_SETPASS(ND_ROUTER_ADVERT, &filt);
ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &filt);
@@ -129,7 +129,7 @@ int router_init(void)
goto out;
}
- // Register socket
+ /* Register socket */
odhcpd_register(&router_event);
out:
if (ret < 0) {
@@ -253,12 +253,12 @@ static bool router_icmpv6_valid(struct sockaddr_in6 *source, uint8_t *data, size
hdr->icmp6_type == ND_ROUTER_SOLICIT)
return false;
- // Check all options parsed successfully
+ /* Check all options parsed successfully */
return opt == end;
}
-// Detect whether a default route exists, also find the source prefixes
+/* Detect whether a default route exists, also find the source prefixes */
static bool parse_routes(struct odhcpd_ipaddr *n, ssize_t len)
{
rewind(fp_route);
@@ -350,7 +350,7 @@ enum {
IOV_RA_TOTAL,
};
-// Router Advert server mode
+/* Router Advert server mode */
static uint64_t send_router_advert(struct interface *iface, const struct in6_addr *from)
{
time_t now = odhcpd_time();
@@ -396,14 +396,14 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add
odhcpd_get_mac(iface, adv.lladdr.data);
- // If not currently shutting down
+ /* If not currently shutting down */
struct odhcpd_ipaddr *addrs = NULL;
ssize_t ipcnt = 0;
uint32_t minvalid = UINT32_MAX;
bool default_route = false;
bool valid_prefix = false;
- // If not shutdown
+ /* If not shutdown */
if (iface->timer_rs.cb) {
size_t size = sizeof(*addrs) * iface->addr6_len;
addrs = alloca(size);
@@ -411,7 +411,7 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add
ipcnt = iface->addr6_len;
- // Check default route
+ /* Check default route */
if (iface->default_router) {
default_route = true;
@@ -427,7 +427,7 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add
odhcpd_get_interface_dns_addr(iface, &dns_pref);
- // Construct Prefix Information options
+ /* Construct Prefix Information options */
size_t pfxs_cnt = 0;
struct nd_opt_prefix_info *pfxs = NULL;
@@ -506,7 +506,7 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add
p->nd_opt_pi_valid_time = htonl(valid);
}
- // Calculate periodic transmit
+ /* Calculate periodic transmit */
uint32_t maxival;
int msecs = calc_adv_interval(iface, minvalid, &maxival);
@@ -523,7 +523,7 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add
syslog(LOG_INFO, "Using a RA lifetime of %d seconds on %s", ntohs(adv.h.nd_ra_router_lifetime), iface->ifname);
- // DNS Recursive DNS
+ /* DNS Recursive DNS */
if (iface->dns_cnt > 0) {
dns_addr = iface->dns;
dns_cnt = iface->dns_cnt;
@@ -540,7 +540,7 @@ static uint64_t send_router_advert(struct interface *iface, const struct in6_add
uint32_t lifetime;
} dns = {ND_OPT_RECURSIVE_DNS, (1 + (2 * dns_cnt)), 0, 0, 0};
- // DNS Search options
+ /* DNS Search options */
uint8_t search_buf[256], *search_domain = iface->search;
size_t search_len = iface->search_len, search_padded = 0;
@@ -663,13 +663,13 @@ static void trigger_router_advert(struct uloop_timeout *event)
struct interface *iface = container_of(event, struct interface, timer_rs);
int msecs = send_router_advert(iface, NULL);
- // Rearm timer if not shut down
+ /* Rearm timer if not shut down */
if (event->cb)
uloop_timeout_set(event, msecs);
}
-// Event handler for incoming ICMPv6 packets
+/* Event handler for incoming ICMPv6 packets */
static void handle_icmpv6(void *addr, void *data, size_t len,
struct interface *iface, _unused void *dest)
{
@@ -679,10 +679,10 @@ static void handle_icmpv6(void *addr, void *data, size_t len,
if (!router_icmpv6_valid(addr, data, len))
return;
- if ((iface->ra == MODE_SERVER && !iface->master)) { // Server mode
+ if ((iface->ra == MODE_SERVER && !iface->master)) { /* Server mode */
if (hdr->icmp6_type == ND_ROUTER_SOLICIT)
send_router_advert(iface, &from->sin6_addr);
- } else if (iface->ra == MODE_RELAY) { // Relay mode
+ } else if (iface->ra == MODE_RELAY) { /* Relay mode */
if (hdr->icmp6_type == ND_ROUTER_ADVERT && iface->master)
forward_router_advertisement(data, len);
else if (hdr->icmp6_type == ND_ROUTER_SOLICIT && !iface->master)
@@ -691,7 +691,7 @@ static void handle_icmpv6(void *addr, void *data, size_t len,
}
-// Forward router solicitation
+/* Forward router solicitation */
static void forward_router_solicitation(const struct interface *iface)
{
struct icmp6_hdr rs = {ND_ROUTER_SOLICIT, 0, 0, {{0}}};
@@ -711,13 +711,13 @@ static void forward_router_solicitation(const struct interface *iface)
}
-// Handler for incoming router solicitations on slave interfaces
+/* Handler for incoming router solicitations on slave interfaces */
static void forward_router_advertisement(uint8_t *data, size_t len)
{
struct nd_router_advert *adv = (struct nd_router_advert *)data;
struct sockaddr_in6 all_nodes;
- // Rewrite options
+ /* Rewrite options */
uint8_t *end = data + len;
uint8_t *mac_ptr = NULL;
struct in6_addr *dns_ptr = NULL;
@@ -726,10 +726,10 @@ static void forward_router_advertisement(uint8_t *data, size_t len)
struct icmpv6_opt *opt;
icmpv6_for_each_option(opt, &adv[1], end) {
if (opt->type == ND_OPT_SOURCE_LINKADDR) {
- // Store address of source MAC-address
+ /* Store address of source MAC-address */
mac_ptr = opt->data;
} else if (opt->type == ND_OPT_RECURSIVE_DNS && opt->len > 1) {
- // Check if we have to rewrite DNS
+ /* Check if we have to rewrite DNS */
dns_ptr = (struct in6_addr*)&opt->data[6];
dns_count = (opt->len - 1) / 2;
}
@@ -737,10 +737,10 @@ static void forward_router_advertisement(uint8_t *data, size_t len)
syslog(LOG_NOTICE, "Got a RA");
- // Indicate a proxy, however we don't follow the rest of RFC 4389 yet
+ /* Indicate a proxy, however we don't follow the rest of RFC 4389 yet */
adv->nd_ra_flags_reserved |= ND_RA_FLAG_PROXY;
- // Forward advertisement to all slave interfaces
+ /* Forward advertisement to all slave interfaces */
memset(&all_nodes, 0, sizeof(all_nodes));
all_nodes.sin6_family = AF_INET6;
inet_pton(AF_INET6, ALL_IPV6_NODES, &all_nodes.sin6_addr);
@@ -752,11 +752,11 @@ static void forward_router_advertisement(uint8_t *data, size_t len)
if (iface->ra != MODE_RELAY || iface->master)
continue;
- // Fixup source hardware address option
+ /* Fixup source hardware address option */
if (mac_ptr)
odhcpd_get_mac(iface, mac_ptr);
- // If we have to rewrite DNS entries
+ /* If we have to rewrite DNS entries */
if (iface->always_rewrite_dns && dns_ptr && dns_count > 0) {
const struct in6_addr *rewrite = iface->dns;
struct in6_addr addr;
@@ -764,13 +764,13 @@ static void forward_router_advertisement(uint8_t *data, size_t len)
if (rewrite_cnt == 0) {
if (odhcpd_get_interface_dns_addr(iface, &addr))
- continue; // Unable to comply
+ continue; /* Unable to comply */
rewrite = &addr;
rewrite_cnt = 1;
}
- // Copy over any other addresses
+ /* Copy over any other addresses */
for (size_t i = 0; i < dns_count; ++i) {
size_t j = (i < rewrite_cnt) ? i : rewrite_cnt - 1;
dns_ptr[i] = rewrite[j];
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 17:14:03 +0000