#endif /* SIN6_LEN */
/* Interface between zebra message and rtm message. */
-static int kernel_rtm_ipv4(int cmd, const struct prefix *p,
- const struct nexthop_group *ng, uint32_t metric)
+static int kernel_rtm(int cmd, const struct prefix *p,
+ const struct nexthop_group *ng, uint32_t metric)
{
union sockunion *mask = NULL;
if (IS_ZEBRA_DEBUG_RIB)
prefix2str(p, prefix_buf, sizeof(prefix_buf));
- memset(&sin_dest, 0, sizeof(sin_dest));
- sin_dest.sin.sin_family = AF_INET;
-#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
- sin_dest.sin.sin_len = sizeof(sin_dest);
-#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
- sin_dest.sin.sin_addr = p->u.prefix4;
+ memset(&sin_dest, 0, sizeof(sin_dest));
+ memset(&sin_gate, 0, sizeof(sin_gate));
memset(&sin_mask, 0, sizeof(sin_mask));
- memset(&sin_gate, 0, sizeof(sin_gate));
- sin_gate.sin.sin_family = AF_INET;
+ switch (p->family) {
+ case AF_INET:
+ sin_dest.sin.sin_family = AF_INET;
#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
- sin_gate.sin.sin_len = sizeof(sin_gate);
+ sin_dest.sin.sin_len = sizeof(sin_dest);
+ sin_gate.sin.sin_len = sizeof(sin_gate);
#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
+ sin_dest.sin.sin_addr = p->u.prefix4;
+ sin_gate.sin.sin_family = AF_INET;
+ break;
+ case AF_INET6:
+ sin_dest.sin6.sin6_family = AF_INET6;
+#ifdef SIN6_LEN
+ sin_dest.sin6.sin6_len = sizeof(sin_dest);
+#endif /* SIN6_LEN */
+ sin_dest.sin6.sin6_addr = p->u.prefix6;
+ sin_gate.sin6.sin6_family = AF_INET6;
+#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
+ sin_gate.sin6.sin6_len = sizeof(sin_gate);
+#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
+ break;
+ }
/* Make gateway. */
for (ALL_NEXTHOPS_PTR(ng, nexthop)) {
*/
if ((cmd == RTM_ADD && NEXTHOP_IS_ACTIVE(nexthop->flags))
|| (cmd == RTM_DELETE)) {
- if (nexthop->type == NEXTHOP_TYPE_IPV4
- || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX) {
+ switch (nexthop->type) {
+ case NEXTHOP_TYPE_IPV4:
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
sin_gate.sin.sin_addr = nexthop->gate.ipv4;
+ sin_gate.sin.sin_family = AF_INET;
+ ifindex = nexthop->ifindex;
gate = 1;
- }
- if (nexthop->type == NEXTHOP_TYPE_IFINDEX
- || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX)
+ break;
+ case NEXTHOP_TYPE_IPV6:
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ sin_gate.sin6.sin6_addr = nexthop->gate.ipv6;
+ sin_gate.sin6.sin6_family = AF_INET6;
ifindex = nexthop->ifindex;
- if (nexthop->type == NEXTHOP_TYPE_BLACKHOLE) {
- struct in_addr loopback;
- loopback.s_addr = htonl(INADDR_LOOPBACK);
- sin_gate.sin.sin_addr = loopback;
- bh_type = nexthop->bh_type;
+/* Under kame set interface index to link local address */
+#ifdef KAME
+
+#define SET_IN6_LINKLOCAL_IFINDEX(a, i) \
+ do { \
+ (a).s6_addr[2] = ((i) >> 8) & 0xff; \
+ (a).s6_addr[3] = (i)&0xff; \
+ } while (0)
+
+ if (IN6_IS_ADDR_LINKLOCAL(
+ &sin_gate.sin6.sin6_addr))
+ SET_IN6_LINKLOCAL_IFINDEX(
+ sin_gate.sin6.sin6_addr,
+ ifindex);
+#endif /* KAME */
+
gate = 1;
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ ifindex = nexthop->ifindex;
+ break;
+ case NEXTHOP_TYPE_BLACKHOLE:
+ bh_type = nexthop->bh_type;
+ switch (p->family) {
+ case AFI_IP: {
+ struct in_addr loopback;
+ loopback.s_addr =
+ htonl(INADDR_LOOPBACK);
+ sin_gate.sin.sin_addr = loopback;
+ gate = 1;
+ }
+ break;
+ case AFI_IP6:
+ break;
+ }
}
- if (gate && p->prefixlen == 32)
- mask = NULL;
- else {
- masklen2ip(p->prefixlen,
- &sin_mask.sin.sin_addr);
- sin_mask.sin.sin_family = AF_INET;
+ switch (p->family) {
+ case AF_INET:
+ if (gate && p->prefixlen == 32)
+ mask = NULL;
+ else {
+ masklen2ip(p->prefixlen,
+ &sin_mask.sin.sin_addr);
+ sin_mask.sin.sin_family = AF_INET;
#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
- sin_mask.sin.sin_len =
- sin_masklen(sin_mask.sin.sin_addr);
+ sin_mask.sin.sin_len = sin_masklen(
+ sin_mask.sin.sin_addr);
#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
- mask = &sin_mask;
+ mask = &sin_mask;
+ }
+ break;
+ case AF_INET6:
+ if (gate && p->prefixlen == 128)
+ mask = NULL;
+ else {
+ masklen2ip6(p->prefixlen,
+ &sin_mask.sin6.sin6_addr);
+ sin_mask.sin6.sin6_family = AF_INET6;
+#ifdef SIN6_LEN
+ sin_mask.sin6.sin6_len = sin6_masklen(
+ sin_mask.sin6.sin6_addr);
+#endif /* SIN6_LEN */
+ mask = &sin_mask;
+ }
+ break;
}
#ifdef __OpenBSD__
continue;
smplsp = (union sockunion *)&smpls;
#endif
-
error = rtm_write(cmd, &sin_dest, mask,
gate ? &sin_gate : NULL, smplsp,
ifindex, bh_type, metric);
"%s: %s: attention! gate not found for re",
__func__, prefix_buf);
} else
- inet_ntop(AF_INET,
+ inet_ntop(p->family == AFI_IP ? AF_INET
+ : AF_INET6,
&sin_gate.sin.sin_addr,
gate_buf, INET_ADDRSTRLEN);
}
-
switch (error) {
- /* We only flag nexthops as being in FIB if rtm_write()
- * did its work. */
+ /* We only flag nexthops as being in FIB if
+ * rtm_write() did its work. */
case ZEBRA_ERR_NOERROR:
nexthop_num++;
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug(
"%s: %s: successfully did NH %s",
__func__, prefix_buf, gate_buf);
-
if (cmd == RTM_ADD)
- SET_FLAG(nexthop->flags,
- NEXTHOP_FLAG_FIB);
-
+ SET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB);
break;
- /* The only valid case for this error is kernel's
- * failure to install
- * a multipath route, which is common for FreeBSD. This
- * should be
- * ignored silently, but logged as an error otherwise.
- */
+ /* The only valid case for this error is
+ * kernel's failure to install a multipath
+ * route, which is common for FreeBSD. This
+ * should be
+ * ignored silently, but logged as an error
+ * otherwise.
+ */
case ZEBRA_ERR_RTEXIST:
if (cmd != RTM_ADD)
flog_err(
__func__, error, cmd);
continue;
- /* Note any unexpected status returns */
+ /* Note any unexpected status returns */
default:
flog_err(
EC_LIB_SYSTEM_CALL,
return 0; /*XXX*/
}
-/* Interface between zebra message and rtm message. */
-static int kernel_rtm_ipv6(int cmd, const struct prefix *p,
- const struct nexthop_group *ng, uint32_t metric)
-{
- union sockunion *mask;
- union sockunion sin_dest, sin_mask, sin_gate;
-#ifdef __OpenBSD__
- struct sockaddr_mpls smpls;
-#endif
- union sockunion *smplsp = NULL;
- struct nexthop *nexthop;
- int nexthop_num = 0;
- ifindex_t ifindex = 0;
- int gate = 0;
- int error;
- enum blackhole_type bh_type = BLACKHOLE_UNSPEC;
-
- memset(&sin_dest, 0, sizeof(sin_dest));
- sin_dest.sin6.sin6_family = AF_INET6;
-#ifdef SIN6_LEN
- sin_dest.sin6.sin6_len = sizeof(sin_dest);
-#endif /* SIN6_LEN */
- sin_dest.sin6.sin6_addr = p->u.prefix6;
-
- memset(&sin_mask, 0, sizeof(sin_mask));
-
- memset(&sin_gate, 0, sizeof(sin_gate));
- sin_gate.sin6.sin6_family = AF_INET6;
-#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
- sin_gate.sin6.sin6_len = sizeof(sin_gate);
-#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
-
- /* Make gateway. */
- for (ALL_NEXTHOPS_PTR(ng, nexthop)) {
- if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
- continue;
-
- gate = 0;
-
- if ((cmd == RTM_ADD && NEXTHOP_IS_ACTIVE(nexthop->flags))
- || (cmd == RTM_DELETE)) {
- if (nexthop->type == NEXTHOP_TYPE_IPV6
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) {
- sin_gate.sin6.sin6_addr = nexthop->gate.ipv6;
- gate = 1;
- }
- if (nexthop->type == NEXTHOP_TYPE_IFINDEX
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX)
- ifindex = nexthop->ifindex;
-
- if (nexthop->type == NEXTHOP_TYPE_BLACKHOLE)
- bh_type = nexthop->bh_type;
- }
-
-/* Under kame set interface index to link local address. */
-#ifdef KAME
-
-#define SET_IN6_LINKLOCAL_IFINDEX(a, i) \
- do { \
- (a).s6_addr[2] = ((i) >> 8) & 0xff; \
- (a).s6_addr[3] = (i)&0xff; \
- } while (0)
-
- if (gate && IN6_IS_ADDR_LINKLOCAL(&sin_gate.sin6.sin6_addr))
- SET_IN6_LINKLOCAL_IFINDEX(sin_gate.sin6.sin6_addr,
- ifindex);
-#endif /* KAME */
-
- if (gate && p->prefixlen == 128)
- mask = NULL;
- else {
- masklen2ip6(p->prefixlen, &sin_mask.sin6.sin6_addr);
- sin_mask.sin6.sin6_family = AF_INET6;
-#ifdef SIN6_LEN
- sin_mask.sin6.sin6_len =
- sin6_masklen(sin_mask.sin6.sin6_addr);
-#endif /* SIN6_LEN */
- mask = &sin_mask;
- }
-
-#ifdef __OpenBSD__
- if (nexthop->nh_label
- && !kernel_rtm_add_labels(nexthop->nh_label, &smpls))
- continue;
- smplsp = (union sockunion *)&smpls;
-#endif
-
- error = rtm_write(cmd, &sin_dest, mask, gate ? &sin_gate : NULL,
- smplsp, ifindex, bh_type, metric);
-
- /* Update installed nexthop info on success */
- if ((cmd == RTM_ADD) && (error == ZEBRA_ERR_NOERROR))
- SET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB);
-
- nexthop_num++;
- }
-
- /* If there is no useful nexthop then return. */
- if (nexthop_num == 0) {
- if (IS_ZEBRA_DEBUG_KERNEL)
- zlog_debug("kernel_rtm_ipv6(): No useful nexthop.");
- return 1;
- }
-
- return 0; /*XXX*/
-}
-
-static int kernel_rtm(int cmd, const struct prefix *p,
- const struct nexthop_group *ng, uint32_t metric)
-{
- switch (PREFIX_FAMILY(p)) {
- case AF_INET:
- return kernel_rtm_ipv4(cmd, p, ng, metric);
- case AF_INET6:
- return kernel_rtm_ipv6(cmd, p, ng, metric);
- }
- return 0;
-}
-
/*
* Update or delete a prefix from the kernel,
* using info from a dataplane context struct.
projects / mirror_frr.git / commitdiff