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zebra: Fix interface based static routes

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This commit fixes interface based static routes.

static routes are now stored and if an interface
comes up it finds the route and installs it.

Ticket: CM-10869
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: Don Slice <dslice@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2016-05-10 08:49:28 -04:00
parent dc1810914c
commit a3d21ef32e
5 changed files with 40 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
zebra/interface.c
View File

@ -102,6 +102,8 @@ if_zebra_new_hook (struct interface *ifp)
zebra_if->ipv4_subnets = route_table_init ();
ifp->info = zebra_if;
zebra_vrf_static_route_interface_fixup (ifp);
return 0;
}
@ -816,6 +818,8 @@ if_up (struct interface *ifp)
zlog_debug ("%u: IF %s up, scheduling RIB processing",
ifp->vrf_id, ifp->name);
rib_update (ifp->vrf_id, RIB_UPDATE_IF_CHANGE);
zebra_vrf_static_route_interface_fixup (ifp);
}
/* Interface goes down. We have to manage different behavior of based

7
zebra/rib.h
View File

@ -389,7 +389,8 @@ static_uninstall_route (afi_t afi, safi_t safi, struct prefix *p, struct static_
extern int
static_add_ipv4 (struct prefix *p, struct in_addr *gate, unsigned int ifindex,
u_char flags, u_short tag, u_char distance, struct zebra_vrf *zvrf);
const char *ifname, u_char flags, u_short tag,
u_char distance, struct zebra_vrf *zvrf);
extern int
static_delete_ipv4 (struct prefix *p, struct in_addr *gate, unsigned int ifindex,
@ -413,8 +414,8 @@ extern struct route_table *rib_table_ipv6;
extern int
static_add_ipv6 (struct prefix *p, u_char type, struct in6_addr *gate,
unsigned int ifindex, u_char flags, u_short tag,
u_char distance, struct zebra_vrf *zvrf);
unsigned int ifindex, const char *ifname, u_char flags,
u_short tag, u_char distance, struct zebra_vrf *zvrf);
extern int
rib_add_ipv6_multipath (struct prefix *, struct rib *, safi_t,

11
zebra/zebra_rib.c
View File

@ -3020,7 +3020,8 @@ static_uninstall_route (afi_t afi, safi_t safi, struct prefix *p, struct static_
/* Add static route into static route configuration. */
int
static_add_ipv4 (struct prefix *p, struct in_addr *gate, unsigned int ifindex,
u_char flags, u_short tag, u_char distance, struct zebra_vrf *zvrf)
const char *ifname, u_char flags, u_short tag,
u_char distance, struct zebra_vrf *zvrf)
{
u_char type = 0;
struct route_node *rn;
@ -3075,7 +3076,7 @@ static_add_ipv4 (struct prefix *p, struct in_addr *gate, unsigned int ifindex,
si->vrf_id = zvrf->vrf_id;
si->ifindex = ifindex;
if (si->ifindex)
strcpy(si->ifname, ifindex2ifname_vrf (si->ifindex, si->vrf_id));
strcpy(si->ifname, ifname);
if (gate)
si->addr.ipv4 = *gate;
@ -3540,8 +3541,8 @@ rib_delete_ipv6 (int type, u_short instance, int flags, struct prefix_ipv6 *p,
/* Add static route into static route configuration. */
int
static_add_ipv6 (struct prefix *p, u_char type, struct in6_addr *gate,
unsigned int ifindex, u_char flags, u_short tag,
u_char distance, struct zebra_vrf *zvrf)
unsigned int ifindex, const char *ifname, u_char flags,
u_short tag, u_char distance, struct zebra_vrf *zvrf)
{
struct route_node *rn;
struct static_route *si;
@ -3594,6 +3595,8 @@ static_add_ipv6 (struct prefix *p, u_char type, struct in6_addr *gate,
si->tag = tag;
si->vrf_id = zvrf->vrf_id;
si->ifindex = ifindex;
if (si->ifindex)
strcpy (si->ifname, ifname);
switch (type)
{

14
zebra/zebra_vrf.c
View File

@ -345,12 +345,14 @@ zebra_vrf_list_lookup_by_name (const char *name)
struct listnode *node;
struct zebra_vrf *zvrf;
if (name)
for (ALL_LIST_ELEMENTS_RO (zvrf_list, node, zvrf))
{
if (strcmp(name, zvrf->name) == 0)
return zvrf;
}
if (!name)
name = VRF_DEFAULT_NAME;
for (ALL_LIST_ELEMENTS_RO (zvrf_list, node, zvrf))
{
if (strcmp(name, zvrf->name) == 0)
return zvrf;
}
return NULL;
}

49
zebra/zebra_vty.c
View File

@ -38,26 +38,6 @@
extern int allow_delete;
static struct zebra_vrf *
zebra_vty_vrf_lookup (const char *vrf_id_str)
{
struct vrf *vrf = NULL;
if (vrf_id_str)
{
vrf = vrf_list_lookup_by_name (vrf_id_str); //Pending: create VRF if the given vrf doesnt exist?
}
else
{
vrf = vrf_list_lookup_by_name (VRF_DEFAULT_NAME);
}
if (vrf)
return (struct zebra_vrf *)vrf->info;
return NULL;
}
/* General fucntion for static route. */
static int
zebra_static_ipv4 (struct vty *vty, int add_cmd, const char *dest_str,
@ -74,6 +54,7 @@ zebra_static_ipv4 (struct vty *vty, int add_cmd, const char *dest_str,
u_short tag = 0;
struct zebra_vrf *zvrf = NULL;
unsigned int ifindex = 0;
const char *ifname = NULL;
ret = str2prefix (dest_str, &p);
if (ret <= 0)
@ -108,7 +89,7 @@ zebra_static_ipv4 (struct vty *vty, int add_cmd, const char *dest_str,
tag = atoi(tag_str);
/* VRF id */
zvrf = zebra_vty_vrf_lookup (vrf_id_str);
zvrf = zebra_vrf_list_lookup_by_name (vrf_id_str);
if (!zvrf)
{
@ -125,7 +106,7 @@ zebra_static_ipv4 (struct vty *vty, int add_cmd, const char *dest_str,
return CMD_WARNING;
}
if (add_cmd)
static_add_ipv4 (&p, NULL, ifindex, ZEBRA_FLAG_BLACKHOLE, tag, distance, zvrf);
static_add_ipv4 (&p, NULL, ifindex, ifname, ZEBRA_FLAG_BLACKHOLE, tag, distance, zvrf);
else
static_delete_ipv4 (&p, NULL, ifindex, tag, distance, zvrf);
return CMD_SUCCESS;
@ -151,7 +132,7 @@ zebra_static_ipv4 (struct vty *vty, int add_cmd, const char *dest_str,
if (gate_str == NULL)
{
if (add_cmd)
static_add_ipv4 (&p, NULL, ifindex, flag, tag, distance, zvrf);
static_add_ipv4 (&p, NULL, ifindex, ifname, flag, tag, distance, zvrf);
else
static_delete_ipv4 (&p, NULL, ifindex, tag, distance, zvrf);
@ -165,15 +146,17 @@ zebra_static_ipv4 (struct vty *vty, int add_cmd, const char *dest_str,
{
struct interface *ifp = if_lookup_by_name_vrf (gate_str, zvrf->vrf_id);
if (!ifp)
{
{
vty_out (vty, "%% Unknown interface: %s%s", gate_str, VTY_NEWLINE);
return CMD_WARNING;
}
ifindex = ifp->ifindex;
ifindex = IFINDEX_DELETED;
}
else
ifindex = ifp->ifindex;
ifname = gate_str;
}
if (add_cmd)
static_add_ipv4 (&p, ifindex ? NULL : &gate, ifindex, flag, tag, distance, zvrf);
static_add_ipv4 (&p, ifindex ? NULL : &gate, ifindex, ifname, flag, tag, distance, zvrf);
else
static_delete_ipv4 (&p, ifindex ? NULL : &gate, ifindex, tag, distance, zvrf);
@ -3435,7 +3418,7 @@ static_ipv6_func (struct vty *vty, int add_cmd, const char *dest_str,
ret = inet_pton (AF_INET6, gate_str, &gate_addr);
/* VRF id */
zvrf = zebra_vty_vrf_lookup (vrf_id_str);
zvrf = zebra_vrf_list_lookup_by_name (vrf_id_str);
if (!zvrf)
{
@ -3476,14 +3459,16 @@ static_ipv6_func (struct vty *vty, int add_cmd, const char *dest_str,
if (!ifp)
{
vty_out (vty, "%% Malformed Interface name %s%s", gate_str, VTY_NEWLINE);
return CMD_WARNING;
ifindex = IFINDEX_DELETED;
}
ifindex = ifp->ifindex;
else
ifindex = ifp->ifindex;
ifname = gate_str;
}
}
if (add_cmd)
static_add_ipv6 (&p, type, gate, ifindex, flag, tag, distance, zvrf);
static_add_ipv6 (&p, type, gate, ifindex, ifname, flag, tag, distance, zvrf);
else
static_delete_ipv6 (&p, type, gate, ifindex, tag, distance, zvrf);