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-rw-r--r--babeld/kernel_zebra.c153
1 files changed, 29 insertions, 124 deletions
diff --git a/babeld/kernel_zebra.c b/babeld/kernel_zebra.c
index 85ee1f8d..db7d0b39 100644
--- a/babeld/kernel_zebra.c
+++ b/babeld/kernel_zebra.c
@@ -58,21 +58,13 @@ THE SOFTWARE.
static int
-kernel_route_add_v4(const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex,
- unsigned int metric);
+kernel_route_v4(int add, const unsigned char *pref, unsigned short plen,
+ const unsigned char *gate, int ifindex,
+ unsigned int metric);
static int
-kernel_route_add_v6(const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex,
- unsigned int metric);
-static int
-kernel_route_delete_v4(const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex,
- unsigned int metric);
-static int
-kernel_route_delete_v6(const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex,
- unsigned int metric);
+kernel_route_v6(int add, const unsigned char *pref, unsigned short plen,
+ const unsigned char *gate, int ifindex,
+ unsigned int metric);
int
kernel_interface_operational(struct interface *interface)
@@ -119,13 +111,13 @@ kernel_route(int operation, const unsigned char *pref, unsigned short plen,
switch (operation) {
case ROUTE_ADD:
return ipv4 ?
- kernel_route_add_v4(pref, plen, gate, ifindex, metric):
- kernel_route_add_v6(pref, plen, gate, ifindex, metric);
+ kernel_route_v4(1, pref, plen, gate, ifindex, metric):
+ kernel_route_v6(1, pref, plen, gate, ifindex, metric);
break;
case ROUTE_FLUSH:
return ipv4 ?
- kernel_route_delete_v4(pref, plen, gate, ifindex, metric):
- kernel_route_delete_v6(pref, plen, gate, ifindex, metric);
+ kernel_route_v4(0, pref, plen, gate, ifindex, metric):
+ kernel_route_v6(0, pref, plen, gate, ifindex, metric);
break;
case ROUTE_MODIFY:
if(newmetric == metric && memcmp(newgate, gate, 16) == 0 &&
@@ -133,15 +125,15 @@ kernel_route(int operation, const unsigned char *pref, unsigned short plen,
return 0;
debugf(BABEL_DEBUG_ROUTE, "Modify route: delete old; add new.");
rc = ipv4 ?
- kernel_route_delete_v4(pref, plen, gate, ifindex, metric):
- kernel_route_delete_v6(pref, plen, gate, ifindex, metric);
+ kernel_route_v4(0, pref, plen, gate, ifindex, metric):
+ kernel_route_v6(0, pref, plen, gate, ifindex, metric);
if (rc < 0)
return -1;
rc = ipv4 ?
- kernel_route_add_v4(pref, plen, newgate, newifindex, newmetric):
- kernel_route_add_v6(pref, plen, newgate, newifindex, newmetric);
+ kernel_route_v4(1, pref, plen, newgate, newifindex, newmetric):
+ kernel_route_v6(1, pref, plen, newgate, newifindex, newmetric);
return rc;
break;
@@ -154,8 +146,9 @@ kernel_route(int operation, const unsigned char *pref, unsigned short plen,
}
static int
-kernel_route_add_v4(const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex, unsigned int metric)
+kernel_route_v4(int add,
+ const unsigned char *pref, unsigned short plen,
+ const unsigned char *gate, int ifindex, unsigned int metric)
{
struct zapi_ipv4 api; /* quagga's communication system */
struct prefix_ipv4 quagga_prefix; /* quagga's prefix */
@@ -197,106 +190,16 @@ kernel_route_add_v4(const unsigned char *pref, unsigned short plen,
api.metric = metric;
}
- debugf(BABEL_DEBUG_ROUTE, "adding route (ipv4) to zebra");
- return zapi_ipv4_route (ZEBRA_IPV4_ROUTE_ADD, zclient,
- &quagga_prefix, &api);
-}
-
-static int
-kernel_route_add_v6(const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex, unsigned int metric)
-{
- unsigned int tmp_ifindex = ifindex; /* (for typing) */
- struct zapi_ipv6 api; /* quagga's communication system */
- struct prefix_ipv6 quagga_prefix; /* quagga's prefix */
- struct in6_addr babel_prefix_addr; /* babeld's prefix addr */
- struct in6_addr nexthop; /* next router to go */
- struct in6_addr *nexthop_pointer = &nexthop;
-
- /* convert to be understandable by quagga */
- /* convert given addresses */
- uchar_to_in6addr(&babel_prefix_addr, pref);
- uchar_to_in6addr(&nexthop, gate);
-
- /* make prefix structure */
- memset (&quagga_prefix, 0, sizeof(quagga_prefix));
- quagga_prefix.family = AF_INET6;
- IPV6_ADDR_COPY (&quagga_prefix.prefix, &babel_prefix_addr);
- quagga_prefix.prefixlen = plen;
- apply_mask_ipv6(&quagga_prefix);
-
- api.type = ZEBRA_ROUTE_BABEL;
- api.flags = 0;
- api.message = 0;
- api.safi = SAFI_UNICAST;
- SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
- if(metric >= KERNEL_INFINITY) {
- api.flags = ZEBRA_FLAG_BLACKHOLE;
- api.nexthop_num = 0;
- api.ifindex_num = 0;
- } else {
- api.nexthop_num = 1;
- api.nexthop = &nexthop_pointer;
- SET_FLAG(api.message, ZAPI_MESSAGE_IFINDEX);
- api.ifindex_num = 1;
- api.ifindex = &tmp_ifindex;
- SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
- api.metric = metric;
- }
-
- debugf(BABEL_DEBUG_ROUTE, "adding route (ipv6) to zebra");
- return zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient,
- &quagga_prefix, &api);
-}
-
-static int
-kernel_route_delete_v4(const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex,
- unsigned int metric)
-{
- struct zapi_ipv4 api; /* quagga's communication system */
- struct prefix_ipv4 quagga_prefix; /* quagga's prefix */
- struct in_addr babel_prefix_addr; /* babeld's prefix addr */
- struct in_addr nexthop; /* next router to go */
- struct in_addr *nexthop_pointer = &nexthop; /* it's an array! */
-
- /* convert to be understandable by quagga */
- /* convert given addresses */
- uchar_to_inaddr(&babel_prefix_addr, pref);
- uchar_to_inaddr(&nexthop, gate);
-
- /* make prefix structure */
- memset (&quagga_prefix, 0, sizeof(quagga_prefix));
- quagga_prefix.family = AF_INET;
- IPV4_ADDR_COPY (&quagga_prefix.prefix, &babel_prefix_addr);
- quagga_prefix.prefixlen = plen - 96;
- apply_mask_ipv4(&quagga_prefix);
-
- api.type = ZEBRA_ROUTE_BABEL;
- api.flags = 0;
- api.message = 0;
- api.safi = SAFI_UNICAST;
- SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
- api.ifindex_num = 0;
- if(metric >= KERNEL_INFINITY) {
- api.flags = ZEBRA_FLAG_BLACKHOLE;
- api.nexthop_num = 0;
- } else {
- api.nexthop_num = 1;
- api.nexthop = &nexthop_pointer;
- SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
- api.metric = metric;
- }
-
- debugf(BABEL_DEBUG_ROUTE, "removing route (ipv4) to zebra");
- return zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient,
- &quagga_prefix, &api);
+ debugf(BABEL_DEBUG_ROUTE, "%s route (ipv4) to zebra",
+ add ? "adding" : "removing" );
+ return zapi_ipv4_route (add ? ZEBRA_IPV4_ROUTE_ADD :
+ ZEBRA_IPV4_ROUTE_DELETE,
+ zclient, &quagga_prefix, &api);
}
static int
-kernel_route_delete_v6(const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex,
- unsigned int metric)
+kernel_route_v6(int add, const unsigned char *pref, unsigned short plen,
+ const unsigned char *gate, int ifindex, unsigned int metric)
{
unsigned int tmp_ifindex = ifindex; /* (for typing) */
struct zapi_ipv6 api; /* quagga's communication system */
@@ -336,9 +239,11 @@ kernel_route_delete_v6(const unsigned char *pref, unsigned short plen,
api.metric = metric;
}
- debugf(BABEL_DEBUG_ROUTE, "removing route (ipv6) to zebra");
- return zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient,
- &quagga_prefix, &api);
+ debugf(BABEL_DEBUG_ROUTE, "%s route (ipv6) to zebra",
+ add ? "adding" : "removing" );
+ return zapi_ipv6_route (add ? ZEBRA_IPV6_ROUTE_ADD :
+ ZEBRA_IPV6_ROUTE_DELETE,
+ zclient, &quagga_prefix, &api);
}
int
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-05 02:57:31 +0000