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pimd: Receive incoming v6 addresses and place in pim_ifp list

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Add code to properly receive v6 addresses up from zebra and to
properly place them into our interface secondary address list.

Additionally cleanup some code in pim_cmd.c that was broken
by these changes.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2017-03-30 09:10:05 -04:00
parent eeff6d3f99
commit 294b6d7243
4 changed files with 48 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
pimd/pim_cmd.c
View File

@ -816,6 +816,7 @@ static void pim_show_interfaces_single(struct vty *vty, const char *ifname, u_ch
mloop = pim_socket_mcastloop_get(pim_ifp->pim_sock_fd);
if (uj) {
char pbuf[PREFIX2STR_BUFFER];
json_row = json_object_new_object();
json_object_pim_ifp_add(json_row, ifp);
@ -827,7 +828,8 @@ static void pim_show_interfaces_single(struct vty *vty, const char *ifname, u_ch
sec_list = json_object_new_array();
for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, sec_node, sec_addr)) {
json_object_array_add(sec_list, json_object_new_string(inet_ntoa(sec_addr->addr)));
json_object_array_add(sec_list,
json_object_new_string(prefix2str(&sec_addr->addr, pbuf, PREFIX2STR_BUFFER)));
}
json_object_object_add(json_row, "secondaryAddressList", sec_list);
}
@ -918,11 +920,12 @@ static void pim_show_interfaces_single(struct vty *vty, const char *ifname, u_ch
vty_out(vty, "Use Source : %s%s", inet_ntoa(pim_ifp->update_source), VTY_NEWLINE);
}
if (pim_ifp->sec_addr_list) {
char pbuf[PREFIX2STR_BUFFER];
vty_out(vty, "Address : %s (primary)%s",
inet_ntoa(ifaddr), VTY_NEWLINE);
inet_ntoa(ifaddr), VTY_NEWLINE);
for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, sec_node, sec_addr)) {
vty_out(vty, " %s%s",
inet_ntoa(sec_addr->addr), VTY_NEWLINE);
prefix2str(&sec_addr->addr, pbuf, PREFIX2STR_BUFFER), VTY_NEWLINE);
}
} else {
vty_out(vty, "Address : %s%s", inet_ntoa(ifaddr), VTY_NEWLINE);
@ -1607,13 +1610,9 @@ static void pim_show_neighbors_secondary(struct vty *vty)
neigh_src_str, sizeof(neigh_src_str));
for (ALL_LIST_ELEMENTS_RO(neigh->prefix_list, prefix_node, p)) {
char neigh_sec_str[INET_ADDRSTRLEN];
char neigh_sec_str[100];
if (p->family != AF_INET)
continue;
pim_inet4_dump("<src?>", p->u.prefix4,
neigh_sec_str, sizeof(neigh_sec_str));
prefix2str(p, neigh_sec_str, 100);
vty_out(vty, "%-9s %-15s %-15s %-15s%s",
ifp->name,

60
pimd/pim_iface.c
View File

@ -324,12 +324,29 @@ static int pim_sec_addr_comp(const void *p1, const void *p2)
const struct pim_secondary_addr *sec1 = p1;
const struct pim_secondary_addr *sec2 = p2;
if (ntohl(sec1->addr.s_addr) < ntohl(sec2->addr.s_addr))
if (sec1->addr.family == AF_INET &&
sec2->addr.family == AF_INET6)
return -1;
if (ntohl(sec1->addr.s_addr) > ntohl(sec2->addr.s_addr))
if (sec1->addr.family == AF_INET6 &&
sec2->addr.family == AF_INET)
return 1;
if (sec1->addr.family == AF_INET)
{
if (ntohl(sec1->addr.u.prefix4.s_addr) < ntohl(sec2->addr.u.prefix4.s_addr))
return -1;
if (ntohl(sec1->addr.u.prefix4.s_addr) > ntohl(sec2->addr.u.prefix4.s_addr))
return 1;
}
else
{
return memcmp (&sec1->addr.u.prefix6,
&sec2->addr.u.prefix6,
sizeof (struct in6_addr));
}
return 0;
}
@ -339,7 +356,7 @@ static void pim_sec_addr_free(struct pim_secondary_addr *sec_addr)
}
static struct pim_secondary_addr *
pim_sec_addr_find(struct pim_interface *pim_ifp, struct in_addr addr)
pim_sec_addr_find(struct pim_interface *pim_ifp, struct prefix *addr)
{
struct pim_secondary_addr *sec_addr;
struct listnode *node;
@ -349,7 +366,7 @@ pim_sec_addr_find(struct pim_interface *pim_ifp, struct in_addr addr)
}
for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, node, sec_addr)) {
if (sec_addr->addr.s_addr == addr.s_addr) {
if (prefix_cmp(&sec_addr->addr, addr)) {
return sec_addr;
}
}
@ -364,7 +381,7 @@ static void pim_sec_addr_del(struct pim_interface *pim_ifp,
pim_sec_addr_free(sec_addr);
}
static int pim_sec_addr_add(struct pim_interface *pim_ifp, struct in_addr addr)
static int pim_sec_addr_add(struct pim_interface *pim_ifp, struct prefix *addr)
{
int changed = 0;
struct pim_secondary_addr *sec_addr;
@ -391,7 +408,7 @@ static int pim_sec_addr_add(struct pim_interface *pim_ifp, struct in_addr addr)
}
changed = 1;
sec_addr->addr = addr;
sec_addr->addr = *addr;
listnode_add_sort(pim_ifp->sec_addr_list, sec_addr);
return changed;
@ -433,10 +450,6 @@ static int pim_sec_addr_update(struct interface *ifp)
for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) {
struct prefix *p = ifc->address;
if (p->family != AF_INET) {
continue;
}
if (PIM_INADDR_IS_ANY(p->u.prefix4)) {
continue;
}
@ -446,7 +459,7 @@ static int pim_sec_addr_update(struct interface *ifp)
continue;
}
if (pim_sec_addr_add(pim_ifp, p->u.prefix4)) {
if (pim_sec_addr_add(pim_ifp, p)) {
changed = 1;
}
}
@ -571,12 +584,15 @@ void pim_if_addr_add(struct connected *ifc)
detect_address_change(ifp, 0, __PRETTY_FUNCTION__);
if (ifc->address->family != AF_INET)
return;
if (PIM_IF_TEST_IGMP(pim_ifp->options)) {
struct igmp_sock *igmp;
/* lookup IGMP socket */
igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list,
ifaddr);
ifaddr);
if (!igmp) {
/* if addr new, add IGMP socket */
pim_igmp_sock_add(pim_ifp->igmp_socket_list, ifaddr, ifp);
@ -675,14 +691,17 @@ void pim_if_addr_del(struct connected *ifc, int force_prim_as_any)
ifp = ifc->ifp;
zassert(ifp);
if (ifc->address->family != AF_INET)
return;
if (PIM_DEBUG_ZEBRA) {
char buf[BUFSIZ];
prefix2str(ifc->address, buf, BUFSIZ);
zlog_debug("%s: %s ifindex=%d disconnected IP address %s %s",
__PRETTY_FUNCTION__,
ifp->name, ifp->ifindex, buf,
CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) ?
"secondary" : "primary");
__PRETTY_FUNCTION__,
ifp->name, ifp->ifindex, buf,
CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) ?
"secondary" : "primary");
}
detect_address_change(ifp, force_prim_as_any, __PRETTY_FUNCTION__);
@ -709,12 +728,9 @@ void pim_if_addr_add_all(struct interface *ifp)
struct prefix *p = ifc->address;
if (p->family != AF_INET)
{
v6_addrs++;
continue;
}
v4_addrs++;
v6_addrs++;
else
v4_addrs++;
pim_if_addr_add(ifc);
}

2
pimd/pim_iface.h
View File

@ -69,7 +69,7 @@ enum pim_secondary_addr_flags {
};
struct pim_secondary_addr {
struct in_addr addr;
struct prefix addr;
enum pim_secondary_addr_flags flags;
};

22
pimd/pim_zebra.c
View File

@ -257,31 +257,11 @@ static int pim_zebra_if_address_add(int command, struct zclient *zclient,
#endif
}
if (p->family != AF_INET)
{
struct listnode *cnode;
struct connected *conn;
int v4addrs = 0;
for (ALL_LIST_ELEMENTS_RO (c->ifp->connected, cnode, conn))
{
if (conn->address->family == AF_INET)
v4addrs++;
}
if (!v4addrs && pim_ifp)
{
pim_ifp->primary_address = pim_find_primary_addr (c->ifp);
pim_if_addr_add_all (c->ifp);
pim_if_add_vif (c->ifp);
}
return 0;
}
if (!CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY)) {
/* trying to add primary address */
struct in_addr primary_addr = pim_find_primary_addr(c->ifp);
if (primary_addr.s_addr != p->u.prefix4.s_addr) {
if (p->family != AF_INET || primary_addr.s_addr != p->u.prefix4.s_addr) {
if (PIM_DEBUG_ZEBRA) {
/* but we had a primary address already */