diff options
| author | Ondrej Filip <feela@network.cz> | 2005-03-14 11:24:56 +0000 |
|---|---|---|
| committer | Ondrej Filip <feela@network.cz> | 2005-03-14 11:24:56 +0000 |
| commit | e300066d5f66b8bd1d5561d63c10a8fbdce3ba8e (patch) | |
| tree | 59a1850f334f13206bcc4d2e5ef57fff71a7d16f | |
| parent | 427e59939bc72c79f1566167b337927b14cb1715 (diff) | |
OSPF can accept larger packets than MTU.
| -rw-r--r-- | proto/ospf/iface.c | 14 | ||||
| -rw-r--r-- | proto/ospf/ospf.h | 15 |
2 files changed, 21 insertions, 8 deletions
diff --git a/proto/ospf/iface.c b/proto/ospf/iface.c index e4070fd6..33062855 100644 --- a/proto/ospf/iface.c +++ b/proto/ospf/iface.c @@ -1,7 +1,7 @@ /* * BIRD -- OSPF * - * (c) 1999 - 2004 Ondrej Filip <feela@network.cz> + * (c) 1999--2005 Ondrej Filip <feela@network.cz> * * Can be freely distributed and used under the terms of the GNU GPL. */ @@ -59,7 +59,7 @@ ospf_open_ip_socket(struct ospf_iface *ifa) ipsk->tx_hook = ospf_tx_hook; ipsk->err_hook = ospf_err_hook; ipsk->iface = ifa->iface; - ipsk->rbsize = ifa->iface->mtu; + ipsk->rbsize = OSPF_MAX_PKT_SIZE; ipsk->tbsize = ifa->iface->mtu; ipsk->data = (void *) ifa; if (sk_open(ipsk) != 0) @@ -126,7 +126,7 @@ ospf_iface_chstate(struct ospf_iface *ifa, u8 state) ifa->dr_sk->tx_hook = ospf_tx_hook; ifa->dr_sk->err_hook = ospf_err_hook; ifa->dr_sk->iface = ifa->iface; - ifa->dr_sk->rbsize = ifa->iface->mtu; + ifa->dr_sk->rbsize = OSPF_MAX_PKT_SIZE; ifa->dr_sk->tbsize = ifa->iface->mtu; ifa->dr_sk->data = (void *) ifa; if (sk_open(ifa->dr_sk) != 0) @@ -299,7 +299,7 @@ ospf_open_mc_socket(struct ospf_iface *ifa) mcsk->tx_hook = ospf_tx_hook; mcsk->err_hook = ospf_err_hook; mcsk->iface = ifa->iface; - mcsk->rbsize = ifa->iface->mtu; + mcsk->rbsize = OSPF_MAX_PKT_SIZE; mcsk->tbsize = ifa->iface->mtu; mcsk->data = (void *) ifa; if (sk_open(mcsk) != 0) @@ -523,19 +523,19 @@ ospf_iface_notify(struct proto *p, unsigned flags, struct iface *iface) OSPF_TRACE(D_EVENTS, "Changing MTU on interface %s.", iface->name); if (ifa->hello_sk) { - ifa->hello_sk->rbsize = ifa->iface->mtu; + ifa->hello_sk->rbsize = OSPF_MAX_PKT_SIZE; ifa->hello_sk->tbsize = ifa->iface->mtu; sk_reallocate(ifa->hello_sk); } if (ifa->dr_sk) { - ifa->dr_sk->rbsize = ifa->iface->mtu; + ifa->dr_sk->rbsize = OSPF_MAX_PKT_SIZE; ifa->dr_sk->tbsize = ifa->iface->mtu; sk_reallocate(ifa->dr_sk); } if (ifa->ip_sk) { - ifa->ip_sk->rbsize = ifa->iface->mtu; + ifa->ip_sk->rbsize = OSPF_MAX_PKT_SIZE; ifa->ip_sk->tbsize = ifa->iface->mtu; sk_reallocate(ifa->ip_sk); } diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h index 79d1f4f7..e52a6efb 100644 --- a/proto/ospf/ospf.h +++ b/proto/ospf/ospf.h @@ -1,7 +1,7 @@ /* * BIRD -- OSPF * - * (c) 1999--2004 Ondrej Filip <feela@network.cz> + * (c) 1999--2005 Ondrej Filip <feela@network.cz> * * Can be freely distributed and used under the terms of the GNU GPL. */ @@ -10,6 +10,19 @@ #define _BIRD_OSPF_H_ #define MAXNETS 10 +#undef OSPF_BIG_PACKETS /* + * RFC 2328 says, maximum packet size is 65535 + * This could be too much for small systems, so I + * normally allocate 2*mtu - (I found one cisco + * sending packets mtu+16) + */ + +#ifdef OSPF_BIG_PACKETS +#define OSPF_MAX_PKT_SIZE 65536 +#else +#define OSPF_MAX_PKT_SIZE (ifa->iface->mtu * 2) +#endif + #ifdef LOCAL_DEBUG #define OSPF_FORCE_DEBUG 1 #else |