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Merge pull request #1076 from donaldsharp/connected

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Connected
This commit is contained in:
Renato Westphal 2017-08-31 14:53:36 -03:00 committed by GitHub
commit ff228d2948
4 changed files with 139 additions and 191 deletions
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4
lib/prefix.h
View File

@ -315,7 +315,9 @@ extern void prefix_ipv4_free(struct prefix_ipv4 *);
extern int str2prefix_ipv4(const char *, struct prefix_ipv4 *);
extern void apply_mask_ipv4(struct prefix_ipv4 *);
#define PREFIX_COPY_IPV4(DST, SRC) \
#define PREFIX_COPY(DST, SRC) \
*((struct prefix *)(DST)) = *((const struct prefix *)(SRC))
#define PREFIX_COPY_IPV4(DST, SRC) \
*((struct prefix_ipv4 *)(DST)) = *((const struct prefix_ipv4 *)(SRC));
extern int prefix_ipv4_any(const struct prefix_ipv4 *);

300
zebra/connected.c
View File

@ -54,10 +54,7 @@ static void connected_withdraw(struct connected *ifc)
if (ifc->address->family == AF_INET)
if_subnet_delete(ifc->ifp, ifc);
if (ifc->address->family == AF_INET)
connected_down_ipv4(ifc->ifp, ifc);
else
connected_down_ipv6(ifc->ifp, ifc);
connected_down(ifc->ifp, ifc);
UNSET_FLAG(ifc->conf, ZEBRA_IFC_REAL);
}
@ -92,10 +89,7 @@ static void connected_announce(struct interface *ifp, struct connected *ifc)
zebra_interface_address_add_update(ifp, ifc);
if (if_is_operative(ifp)) {
if (ifc->address->family == AF_INET)
connected_up_ipv4(ifp, ifc);
else
connected_up_ipv6(ifp, ifc);
connected_up(ifp, ifc);
}
}
@ -204,8 +198,9 @@ static void connected_update(struct interface *ifp, struct connected *ifc)
}
/* Called from if_up(). */
void connected_up_ipv4(struct interface *ifp, struct connected *ifc)
void connected_up(struct interface *ifp, struct connected *ifc)
{
afi_t afi;
struct prefix p;
struct nexthop nh = {
.type = NEXTHOP_TYPE_IFINDEX, .ifindex = ifp->ifindex,
@ -214,34 +209,59 @@ void connected_up_ipv4(struct interface *ifp, struct connected *ifc)
if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL))
return;
PREFIX_COPY_IPV4((struct prefix_ipv4 *)&p, CONNECTED_PREFIX(ifc));
PREFIX_COPY(&p, CONNECTED_PREFIX(ifc));
/* Apply mask to the network. */
apply_mask(&p);
/* In case of connected address is 0.0.0.0/0 we treat it tunnel
address. */
if (prefix_ipv4_any((struct prefix_ipv4 *)&p))
afi = family2afi(p.family);
switch (afi) {
case AFI_IP:
/*
* In case of connected address is 0.0.0.0/0 we treat it tunnel
* address.
*/
if (prefix_ipv4_any((struct prefix_ipv4 *)&p))
return;
break;
case AFI_IP6:
#ifndef LINUX
/* XXX: It is already done by rib_bogus_ipv6 within rib_add */
if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6))
return;
#endif
break;
default:
zlog_warn("Received unknown AFI: %s", afi2str(afi));
return;
break;
}
rib_add(AFI_IP, SAFI_UNICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0, 0,
rib_add(afi, SAFI_UNICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0, 0,
&p, NULL, &nh, RT_TABLE_MAIN, ifp->metric, 0, 0);
rib_add(AFI_IP, SAFI_MULTICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0, 0,
rib_add(afi, SAFI_MULTICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0, 0,
&p, NULL, &nh, RT_TABLE_MAIN, ifp->metric, 0, 0);
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
zlog_debug(
"%u: IF %s IPv4 address add/up, scheduling RIB processing",
ifp->vrf_id, ifp->name);
if (IS_ZEBRA_DEBUG_RIB_DETAILED) {
char buf[PREFIX_STRLEN];
zlog_debug("%u: IF %s address %s add/up, scheduling RIB processing",
ifp->vrf_id, ifp->name,
prefix2str(&p, buf, sizeof(buf)));
}
rib_update(ifp->vrf_id, RIB_UPDATE_IF_CHANGE);
/* Schedule LSP forwarding entries for processing, if appropriate. */
if (ifp->vrf_id == VRF_DEFAULT) {
if (IS_ZEBRA_DEBUG_MPLS)
zlog_debug(
"%u: IF %s IPv4 address add/up, scheduling MPLS processing",
ifp->vrf_id, ifp->name);
if (IS_ZEBRA_DEBUG_MPLS) {
char buf[PREFIX_STRLEN];
zlog_debug("%u: IF %s IP %s address add/up, scheduling MPLS processing",
ifp->vrf_id, ifp->name,
prefix2str(&p, buf, sizeof(buf)));
}
mpls_mark_lsps_for_processing(vrf_info_lookup(ifp->vrf_id));
}
}
@ -335,8 +355,9 @@ void connected_add_ipv4(struct interface *ifp, int flags, struct in_addr *addr,
connected_update(ifp, ifc);
}
void connected_down_ipv4(struct interface *ifp, struct connected *ifc)
void connected_down(struct interface *ifp, struct connected *ifc)
{
afi_t afi;
struct prefix p;
struct nexthop nh = {
.type = NEXTHOP_TYPE_IFINDEX, .ifindex = ifp->ifindex,
@ -345,37 +366,92 @@ void connected_down_ipv4(struct interface *ifp, struct connected *ifc)
if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL))
return;
PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc));
PREFIX_COPY(&p, CONNECTED_PREFIX(ifc));
/* Apply mask to the network. */
apply_mask(&p);
/* In case of connected address is 0.0.0.0/0 we treat it tunnel
address. */
if (prefix_ipv4_any((struct prefix_ipv4 *)&p))
return;
afi = family2afi(p.family);
/* Same logic as for connected_up_ipv4(): push the changes into the
* head. */
rib_delete(AFI_IP, SAFI_UNICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0, 0,
switch (afi) {
case AFI_IP:
/*
* In case of connected address is 0.0.0.0/0 we treat it tunnel
* address.
*/
if (prefix_ipv4_any((struct prefix_ipv4 *)&p))
return;
break;
case AFI_IP6:
if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6))
return;
break;
default:
zlog_info("Unknown AFI: %s", afi2str(afi));
break;
}
/*
* Same logic as for connected_up(): push the changes into the
* head.
*/
rib_delete(afi, SAFI_UNICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0, 0,
&p, NULL, &nh, 0, 0);
rib_delete(AFI_IP, SAFI_MULTICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0,
rib_delete(afi, SAFI_MULTICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0,
0, &p, NULL, &nh, 0, 0);
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
zlog_debug(
"%u: IF %s IPv4 address down, scheduling RIB processing",
ifp->vrf_id, ifp->name);
if (IS_ZEBRA_DEBUG_RIB_DETAILED) {
char buf[PREFIX_STRLEN];
zlog_debug("%u: IF %s IP %s address down, scheduling RIB processing",
ifp->vrf_id, ifp->name,
prefix2str(&p, buf, sizeof(buf)));
}
rib_update(ifp->vrf_id, RIB_UPDATE_IF_CHANGE);
/* Schedule LSP forwarding entries for processing, if appropriate. */
if (ifp->vrf_id == VRF_DEFAULT) {
if (IS_ZEBRA_DEBUG_MPLS)
zlog_debug(
"%u: IF %s IPv4 address add/up, scheduling MPLS processing",
ifp->vrf_id, ifp->name);
if (IS_ZEBRA_DEBUG_MPLS) {
char buf[PREFIX_STRLEN];
zlog_debug("%u: IF %s IP %s address down, scheduling MPLS processing",
ifp->vrf_id, ifp->name,
prefix2str(&p, buf, sizeof(buf)));
}
mpls_mark_lsps_for_processing(vrf_info_lookup(ifp->vrf_id));
}
}
static void connected_delete_helper(struct connected *ifc, struct prefix *p)
{
struct interface *ifp;
if (!ifc)
return;
ifp = ifc->ifp;
connected_withdraw(ifc);
if (IS_ZEBRA_DEBUG_RIB_DETAILED) {
char buf[PREFIX_STRLEN];
zlog_debug("%u: IF %s IP %s address del, scheduling RIB processing",
ifp->vrf_id, ifp->name,
prefix2str(p, buf, sizeof(buf)));
}
rib_update(ifp->vrf_id, RIB_UPDATE_IF_CHANGE);
/* Schedule LSP forwarding entries for processing, if appropriate. */
if (ifp->vrf_id == VRF_DEFAULT) {
if (IS_ZEBRA_DEBUG_MPLS) {
char buf[PREFIX_STRLEN];
zlog_debug("%u: IF %s IP %s address delete, scheduling MPLS processing",
ifp->vrf_id, ifp->name,
prefix2str(p, buf, sizeof(buf)));
}
mpls_mark_lsps_for_processing(vrf_info_lookup(ifp->vrf_id));
}
}
@ -385,86 +461,25 @@ void connected_delete_ipv4(struct interface *ifp, int flags,
struct in_addr *addr, u_char prefixlen,
struct in_addr *broad)
{
struct prefix_ipv4 p, d;
struct prefix p, d;
struct connected *ifc;
memset(&p, 0, sizeof(struct prefix_ipv4));
memset(&p, 0, sizeof(struct prefix));
p.family = AF_INET;
p.prefix = *addr;
p.u.prefix4 = *addr;
p.prefixlen = CHECK_FLAG(flags, ZEBRA_IFA_PEER) ? IPV4_MAX_PREFIXLEN
: prefixlen;
if (broad) {
memset(&d, 0, sizeof(struct prefix_ipv4));
memset(&d, 0, sizeof(struct prefix));
d.family = AF_INET;
d.prefix = *broad;
d.u.prefix4 = *broad;
d.prefixlen = prefixlen;
ifc = connected_check_ptp(ifp, (struct prefix *)&p,
(struct prefix *)&d);
ifc = connected_check_ptp(ifp, &p, &d);
} else
ifc = connected_check_ptp(ifp, (struct prefix *)&p, NULL);
ifc = connected_check_ptp(ifp, &p, NULL);
if (!ifc)
return;
connected_withdraw(ifc);
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
zlog_debug(
"%u: IF %s IPv4 address del, scheduling RIB processing",
ifp->vrf_id, ifp->name);
rib_update(ifp->vrf_id, RIB_UPDATE_IF_CHANGE);
/* Schedule LSP forwarding entries for processing, if appropriate. */
if (ifp->vrf_id == VRF_DEFAULT) {
if (IS_ZEBRA_DEBUG_MPLS)
zlog_debug(
"%u: IF %s IPv4 address add/up, scheduling MPLS processing",
ifp->vrf_id, ifp->name);
mpls_mark_lsps_for_processing(vrf_info_lookup(ifp->vrf_id));
}
}
void connected_up_ipv6(struct interface *ifp, struct connected *ifc)
{
struct prefix p;
struct nexthop nh = {
.type = NEXTHOP_TYPE_IFINDEX, .ifindex = ifp->ifindex,
};
if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL))
return;
PREFIX_COPY_IPV6((struct prefix_ipv6 *)&p, CONNECTED_PREFIX(ifc));
/* Apply mask to the network. */
apply_mask(&p);
#ifndef LINUX
/* XXX: It is already done by rib_bogus_ipv6 within rib_add */
if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6))
return;
#endif
rib_add(AFI_IP6, SAFI_UNICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0, 0,
&p, NULL, &nh, RT_TABLE_MAIN, ifp->metric, 0, 0);
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
zlog_debug(
"%u: IF %s IPv6 address down, scheduling RIB processing",
ifp->vrf_id, ifp->name);
rib_update(ifp->vrf_id, RIB_UPDATE_IF_CHANGE);
/* Schedule LSP forwarding entries for processing, if appropriate. */
if (ifp->vrf_id == VRF_DEFAULT) {
if (IS_ZEBRA_DEBUG_MPLS)
zlog_debug(
"%u: IF %s IPv4 address add/up, scheduling MPLS processing",
ifp->vrf_id, ifp->name);
mpls_mark_lsps_for_processing(vrf_info_lookup(ifp->vrf_id));
}
connected_delete_helper(ifc, &p);
}
/* Add connected IPv6 route to the interface. */
@ -509,75 +524,20 @@ void connected_add_ipv6(struct interface *ifp, int flags, struct in6_addr *addr,
connected_update(ifp, ifc);
}
void connected_down_ipv6(struct interface *ifp, struct connected *ifc)
{
struct prefix p;
struct nexthop nh = {
.type = NEXTHOP_TYPE_IFINDEX, .ifindex = ifp->ifindex,
};
if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL))
return;
PREFIX_COPY_IPV6(&p, CONNECTED_PREFIX(ifc));
apply_mask(&p);
if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6))
return;
rib_delete(AFI_IP6, SAFI_UNICAST, ifp->vrf_id, ZEBRA_ROUTE_CONNECT, 0,
0, &p, NULL, &nh, 0, 0);
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
zlog_debug(
"%u: IF %s IPv6 address down, scheduling RIB processing",
ifp->vrf_id, ifp->name);
rib_update(ifp->vrf_id, RIB_UPDATE_IF_CHANGE);
/* Schedule LSP forwarding entries for processing, if appropriate. */
if (ifp->vrf_id == VRF_DEFAULT) {
if (IS_ZEBRA_DEBUG_MPLS)
zlog_debug(
"%u: IF %s IPv4 address add/up, scheduling MPLS processing",
ifp->vrf_id, ifp->name);
mpls_mark_lsps_for_processing(vrf_info_lookup(ifp->vrf_id));
}
}
void connected_delete_ipv6(struct interface *ifp, struct in6_addr *address,
u_char prefixlen)
{
struct prefix_ipv6 p;
struct prefix p;
struct connected *ifc;
memset(&p, 0, sizeof(struct prefix_ipv6));
memset(&p, 0, sizeof(struct prefix));
p.family = AF_INET6;
memcpy(&p.prefix, address, sizeof(struct in6_addr));
memcpy(&p.u.prefix6, address, sizeof(struct in6_addr));
p.prefixlen = prefixlen;
ifc = connected_check(ifp, (struct prefix *)&p);
if (!ifc)
return;
ifc = connected_check(ifp, &p);
connected_withdraw(ifc);
if (IS_ZEBRA_DEBUG_RIB_DETAILED)
zlog_debug(
"%u: IF %s IPv6 address del, scheduling RIB processing",
ifp->vrf_id, ifp->name);
rib_update(ifp->vrf_id, RIB_UPDATE_IF_CHANGE);
/* Schedule LSP forwarding entries for processing, if appropriate. */
if (ifp->vrf_id == VRF_DEFAULT) {
if (IS_ZEBRA_DEBUG_MPLS)
zlog_debug(
"%u: IF %s IPv4 address add/up, scheduling MPLS processing",
ifp->vrf_id, ifp->name);
mpls_mark_lsps_for_processing(vrf_info_lookup(ifp->vrf_id));
}
connected_delete_helper(ifc, &p);
}
int connected_is_unnumbered(struct interface *ifp)

7
zebra/connected.h
View File

@ -38,8 +38,8 @@ extern void connected_delete_ipv4(struct interface *ifp, int flags,
extern void connected_delete_ipv4_unnumbered(struct connected *ifc);
extern void connected_up_ipv4(struct interface *, struct connected *);
extern void connected_down_ipv4(struct interface *, struct connected *);
extern void connected_up(struct interface *ifp, struct connected *ifc);
extern void connected_down(struct interface *ifp, struct connected *ifc);
extern void connected_add_ipv6(struct interface *ifp, int flags,
struct in6_addr *address, u_char prefixlen,
@ -47,9 +47,6 @@ extern void connected_add_ipv6(struct interface *ifp, int flags,
extern void connected_delete_ipv6(struct interface *ifp,
struct in6_addr *address, u_char prefixlen);
extern void connected_up_ipv6(struct interface *, struct connected *);
extern void connected_down_ipv6(struct interface *ifp, struct connected *);
extern int connected_is_unnumbered(struct interface *);
#endif /*_ZEBRA_CONNECTED_H */

19
zebra/interface.c
View File

@ -527,18 +527,13 @@ static void if_install_connected(struct interface *ifp)
struct listnode *node;
struct listnode *next;
struct connected *ifc;
struct prefix *p;
if (ifp->connected) {
for (ALL_LIST_ELEMENTS(ifp->connected, node, next, ifc)) {
if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL))
zebra_interface_address_add_update(ifp, ifc);
p = ifc->address;
if (p->family == AF_INET)
connected_up_ipv4(ifp, ifc);
else if (p->family == AF_INET6)
connected_up_ipv6(ifp, ifc);
connected_up(ifp, ifc);
}
}
}
@ -549,17 +544,11 @@ static void if_uninstall_connected(struct interface *ifp)
struct listnode *node;
struct listnode *next;
struct connected *ifc;
struct prefix *p;
if (ifp->connected) {
for (ALL_LIST_ELEMENTS(ifp->connected, node, next, ifc)) {
p = ifc->address;
zebra_interface_address_delete_update(ifp, ifc);
if (p->family == AF_INET)
connected_down_ipv4(ifp, ifc);
else if (p->family == AF_INET6)
connected_down_ipv6(ifp, ifc);
connected_down(ifp, ifc);
}
}
}
@ -608,7 +597,7 @@ static void if_delete_connected(struct interface *ifp)
next = anode->next;
ifc = listgetdata(anode);
connected_down_ipv4(ifp, ifc);
connected_down(ifp, ifc);
/* XXX: We have to send notifications
* here explicitly, because we destroy
@ -642,7 +631,7 @@ static void if_delete_connected(struct interface *ifp)
rn->info = NULL;
route_unlock_node(rn);
} else if (cp.family == AF_INET6) {
connected_down_ipv6(ifp, ifc);
connected_down(ifp, ifc);
zebra_interface_address_delete_update(ifp, ifc);