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zebra: Refactor v4 and v6 static_add into 1 function

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Refactor the static_add_ipv[4|6] functions into
1 function call.  They are basically doing the exact
same thing no need for separate code paths.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2016-08-24 00:26:07 -04:00
parent c7cfcb75e9
commit 3a3d00f1bd
3 changed files with 43 additions and 128 deletions
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151
zebra/zebra_static.c
View File

@ -310,37 +310,42 @@ static_uninstall_route (afi_t afi, safi_t safi, struct prefix *p, struct static_
}
int
static_add_ipv4 (safi_t safi, struct prefix *p, struct in_addr *gate, ifindex_t ifindex,
const char *ifname, u_char flags, u_short tag,
u_char distance, struct zebra_vrf *zvrf)
static_add_route (afi_t afi, safi_t safi, u_char type, struct prefix *p,
union g_addr *gate, ifindex_t ifindex,
const char *ifname, u_char flags, u_short tag,
u_char distance, struct zebra_vrf *zvrf)
{
u_char type = 0;
struct route_node *rn;
struct static_route *si;
struct static_route *pp;
struct static_route *cp;
struct static_route *update = NULL;
struct route_table *stable = zvrf->stable[AFI_IP][safi];
struct route_table *stable = zvrf->stable[afi][safi];
if (! stable)
return -1;
if (!gate &&
(type == STATIC_IPV4_GATEWAY ||
type == STATIC_IPV6_GATEWAY ||
type == STATIC_IPV6_GATEWAY_IFINDEX))
return -1;
if (!ifindex &&
(type == STATIC_IFINDEX ||
type == STATIC_IPV6_GATEWAY_IFINDEX))
return -1;
/* Lookup static route prefix. */
rn = route_node_get (stable, p);
/* Make flags. */
if (gate)
type = STATIC_IPV4_GATEWAY;
else if (ifindex)
type = STATIC_IFINDEX;
else
type = STATIC_IPV4_BLACKHOLE;
/* Do nothing if there is a same static route. */
for (si = rn->info; si; si = si->next)
{
if (type == si->type
&& (! gate || IPV4_ADDR_SAME (gate, &si->addr.ipv4))
&& (! gate ||
((afi == AFI_IP && IPV4_ADDR_SAME (gate, &si->addr.ipv4)) ||
(afi == AFI_IP6 && IPV6_ADDR_SAME (gate, &si->addr.ipv6))))
&& (! ifindex || ifindex == si->ifindex))
{
if ((distance == si->distance) && (tag == si->tag))
@ -355,7 +360,7 @@ static_add_ipv4 (safi_t safi, struct prefix *p, struct in_addr *gate, ifindex_t
/* Distance or tag changed. */
if (update)
static_delete_route (AFI_IP, safi, type, p, (union g_addr *)gate,
static_delete_route (afi, safi, type, p, gate,
ifindex, update->tag, update->distance, zvrf);
/* Make new static route structure. */
@ -370,8 +375,20 @@ static_add_ipv4 (safi_t safi, struct prefix *p, struct in_addr *gate, ifindex_t
if (si->ifindex)
strcpy(si->ifname, ifname);
if (gate)
si->addr.ipv4 = *gate;
switch (type)
{
case STATIC_IPV4_GATEWAY:
si->addr.ipv4 = gate->ipv4;
break;
case STATIC_IPV6_GATEWAY:
si->addr.ipv6 = gate->ipv6;
break;
case STATIC_IPV6_GATEWAY_IFINDEX:
si->addr.ipv6 = gate->ipv6;
break;
case STATIC_IFINDEX:
break;
}
/* Add new static route information to the tree with sort by
distance value and gateway address. */
@ -401,7 +418,7 @@ static_add_ipv4 (safi_t safi, struct prefix *p, struct in_addr *gate, ifindex_t
si->next = cp;
/* Install into rib. */
static_install_route (AFI_IP, safi, p, si);
static_install_route (afi, safi, p, si);
return 1;
}
@ -461,101 +478,3 @@ static_delete_route (afi_t afi, safi_t safi, u_char type, struct prefix *p,
return 1;
}
/* Add static route into static route configuration. */
int
static_add_ipv6 (struct prefix *p, u_char type, struct in6_addr *gate,
ifindex_t 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;
struct static_route *pp;
struct static_route *cp;
struct static_route *update = NULL;
struct route_table *stable = zvrf->stable[AFI_IP6][SAFI_UNICAST];
if (! stable)
return -1;
if (!gate &&
(type == STATIC_IPV6_GATEWAY || type == STATIC_IPV6_GATEWAY_IFINDEX))
return -1;
if (!ifindex &&
(type == STATIC_IPV6_GATEWAY_IFINDEX || type == STATIC_IFINDEX))
return -1;
/* Lookup static route prefix. */
rn = route_node_get (stable, p);
/* Do nothing if there is a same static route. */
for (si = rn->info; si; si = si->next)
{
if (type == si->type
&& (! gate || IPV6_ADDR_SAME (gate, &si->addr.ipv6))
&& (! ifindex || ifindex == si->ifindex))
{
if ((distance == si->distance) && (tag == si->tag))
{
route_unlock_node (rn);
return 0;
}
else
update = si;
}
}
/* Distance or tag changed. */
if (update)
static_delete_route (AFI_IP6, SAFI_UNICAST, type, p,
(union g_addr *)gate, ifindex,
update->tag, update->distance, zvrf);
/* Make new static route structure. */
si = XCALLOC (MTYPE_STATIC_ROUTE, sizeof (struct static_route));
si->type = type;
si->distance = distance;
si->flags = flags;
si->tag = tag;
si->vrf_id = zvrf->vrf_id;
si->ifindex = ifindex;
if (si->ifindex)
strcpy (si->ifname, ifname);
switch (type)
{
case STATIC_IPV6_GATEWAY:
si->addr.ipv6 = *gate;
break;
case STATIC_IPV6_GATEWAY_IFINDEX:
si->addr.ipv6 = *gate;
break;
}
/* Add new static route information to the tree with sort by
distance value and gateway address. */
for (pp = NULL, cp = rn->info; cp; pp = cp, cp = cp->next)
{
if (si->distance < cp->distance)
break;
if (si->distance > cp->distance)
continue;
}
/* Make linked list. */
if (pp)
pp->next = si;
else
rn->info = si;
if (cp)
cp->prev = si;
si->prev = pp;
si->next = cp;
/* Install into rib. */
static_install_route (AFI_IP6, SAFI_UNICAST, p, si);
return 1;
}

11
zebra/zebra_static.h
View File

@ -74,9 +74,10 @@ extern void
static_uninstall_route (afi_t afi, safi_t safi, struct prefix *p, struct static_route *si);
extern int
static_add_ipv4 (safi_t safi, struct prefix *p, struct in_addr *gate, ifindex_t ifindex,
const char *ifname, u_char flags, u_short tag,
u_char distance, struct zebra_vrf *zvrf);
static_add_route (afi_t, safi_t safi, u_char type, struct prefix *p,
union g_addr *gate, ifindex_t ifindex,
const char *ifname, u_char flags, u_short tag,
u_char distance, struct zebra_vrf *zvrf);
extern int
static_delete_route (afi_t, safi_t safi, u_char type, struct prefix *p,
@ -84,9 +85,5 @@ static_delete_route (afi_t, safi_t safi, u_char type, struct prefix *p,
u_short tag, u_char distance,
struct zebra_vrf *zvrf);
extern int
static_add_ipv6 (struct prefix *p, u_char type, struct in6_addr *gate,
ifindex_t ifindex, const char *ifname, u_char flags,
u_short tag, u_char distance, struct zebra_vrf *zvrf);
#endif

9
zebra/zebra_vty.c
View File

@ -118,7 +118,7 @@ zebra_static_ipv4 (struct vty *vty, safi_t safi, int add_cmd,
return CMD_WARNING;
}
if (add_cmd)
static_add_ipv4 (safi, &p, NULL, ifindex, ifname, ZEBRA_FLAG_BLACKHOLE, tag, distance, zvrf);
static_add_route (AFI_IP, safi, type, &p, NULL, ifindex, ifname, ZEBRA_FLAG_BLACKHOLE, tag, distance, zvrf);
else
static_delete_route (AFI_IP, safi, type, &p, NULL, ifindex, tag, distance, zvrf);
return CMD_SUCCESS;
@ -143,9 +143,8 @@ zebra_static_ipv4 (struct vty *vty, safi_t safi, int add_cmd,
if (gate_str == NULL)
{
type = STATIC_IFINDEX;
if (add_cmd)
static_add_ipv4 (safi, &p, NULL, ifindex, ifname, flag, tag, distance, zvrf);
static_add_route (AFI_IP, safi, type, &p, NULL, ifindex, ifname, flag, tag, distance, zvrf);
else
static_delete_route (AFI_IP, safi, type, &p, NULL, ifindex, tag, distance, zvrf);
@ -172,7 +171,7 @@ zebra_static_ipv4 (struct vty *vty, safi_t safi, int add_cmd,
type = STATIC_IPV4_GATEWAY;
if (add_cmd)
static_add_ipv4 (safi, &p, ifindex ? NULL : &gate, ifindex, ifname, flag, tag, distance, zvrf);
static_add_route (AFI_IP, safi, type, &p, ifindex ? NULL : (union g_addr *)&gate, ifindex, ifname, flag, tag, distance, zvrf);
else
static_delete_route (AFI_IP, safi, type, &p, ifindex ? NULL : (union g_addr *)&gate, ifindex, tag, distance, zvrf);
@ -3738,7 +3737,7 @@ static_ipv6_func (struct vty *vty, int add_cmd, const char *dest_str,
}
if (add_cmd)
static_add_ipv6 (&p, type, gate, ifindex, ifname, flag, tag, distance, zvrf);
static_add_route (AFI_IP6, SAFI_UNICAST, type, &p, (union g_addr *)gate, ifindex, ifname, flag, tag, distance, zvrf);
else
static_delete_route (AFI_IP6, SAFI_UNICAST, type, &p, (union g_addr *)gate, ifindex, tag, distance, zvrf);