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| author | Timo Teräs <timo.teras@iki.fi> | 2015-11-02 15:50:07 +0100 |
|---|---|---|
| committer | Donald Sharp <sharpd@cumulusnetworks.com> | 2016-08-21 19:11:42 +0200 |
| commit | c50ca33acf29bb269e8f26be19a8ccd06ab41d3e (patch) | |
| tree | 82c05cf8767f6b9096a58d57f5fed9bf8c82e8ef /lib | |
| parent | zebra: Fix cherry-pick of ZEBRA_FLAG_CHANGED (diff) | |
| download | frr-c50ca33acf29bb269e8f26be19a8ccd06ab41d3e.tar.xz frr-c50ca33acf29bb269e8f26be19a8ccd06ab41d3e.zip | |
zebra: implement per-route mtu handling
This commits allow overriding MTU using netlink attributes on
per-route basis. This is useful for routing protocols that can
advertice prefix specific MTUs between routers (e.g. NHRP).
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
(cherry picked from commit b11f3b54c842117e22e2f5cf1561ea34eee8dfcc)
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/zclient.c | 8 | ||||
| -rw-r--r-- | lib/zclient.h | 5 |
2 files changed, 13 insertions, 0 deletions
diff --git a/lib/zclient.c b/lib/zclient.c index a28db083c..0259af597 100644 --- a/lib/zclient.c +++ b/lib/zclient.c @@ -709,6 +709,8 @@ zclient_connect (struct thread *t) * * If ZAPI_MESSAGE_TAG is set, the tag value is written as a 2 byte value * + * If ZAPI_MESSAGE_MTU is set, the mtu value is written as a 4 byte value + * * XXX: No attention paid to alignment. */ int @@ -769,6 +771,8 @@ zapi_ipv4_route (u_char cmd, struct zclient *zclient, struct prefix_ipv4 *p, stream_putl (s, api->metric); if (CHECK_FLAG (api->message, ZAPI_MESSAGE_TAG)) stream_putw (s, api->tag); + if (CHECK_FLAG (api->message, ZAPI_MESSAGE_MTU)) + stream_putl (s, api->mtu); /* Put length at the first point of the stream. */ stream_putw_at (s, 0, stream_get_endp (s)); @@ -834,6 +838,8 @@ zapi_ipv4_route_ipv6_nexthop (u_char cmd, struct zclient *zclient, stream_putl (s, api->metric); if (CHECK_FLAG (api->message, ZAPI_MESSAGE_TAG)) stream_putw (s, api->tag); + if (CHECK_FLAG (api->message, ZAPI_MESSAGE_MTU)) + stream_putl (s, api->mtu); /* Put length at the first point of the stream. */ stream_putw_at (s, 0, stream_get_endp (s)); @@ -898,6 +904,8 @@ zapi_ipv6_route (u_char cmd, struct zclient *zclient, struct prefix_ipv6 *p, stream_putl (s, api->metric); if (CHECK_FLAG (api->message, ZAPI_MESSAGE_TAG)) stream_putw (s, api->tag); + if (CHECK_FLAG (api->message, ZAPI_MESSAGE_MTU)) + stream_putl (s, api->mtu); /* Put length at the first point of the stream. */ stream_putw_at (s, 0, stream_get_endp (s)); diff --git a/lib/zclient.h b/lib/zclient.h index 8926bbbe6..c42d8c9aa 100644 --- a/lib/zclient.h +++ b/lib/zclient.h @@ -116,6 +116,7 @@ struct zclient #define ZAPI_MESSAGE_DISTANCE 0x04 #define ZAPI_MESSAGE_METRIC 0x08 #define ZAPI_MESSAGE_TAG 0x10 +#define ZAPI_MESSAGE_MTU 0x20 /* Zserv protocol message header */ struct zserv_header @@ -154,6 +155,8 @@ struct zapi_ipv4 u_short tag; + u_int32_t mtu; + vrf_id_t vrf_id; }; @@ -237,6 +240,8 @@ struct zapi_ipv6 u_short tag; + u_int32_t mtu; + vrf_id_t vrf_id; }; |