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Diffstat (limited to 'proto/ospf/packet.c')
-rw-r--r--proto/ospf/packet.c234
1 files changed, 114 insertions, 120 deletions
diff --git a/proto/ospf/packet.c b/proto/ospf/packet.c
index 7bdc104..4d782b8 100644
--- a/proto/ospf/packet.c
+++ b/proto/ospf/packet.c
@@ -9,7 +9,7 @@
#include "ospf.h"
void
-fill_ospf_pkt_hdr (struct ospf_iface *ifa, void *buf, u8 h_type)
+fill_ospf_pkt_hdr(struct ospf_iface *ifa, void *buf, u8 h_type)
{
struct ospf_packet *pkt;
struct proto *p;
@@ -22,51 +22,51 @@ fill_ospf_pkt_hdr (struct ospf_iface *ifa, void *buf, u8 h_type)
pkt->type = h_type;
- pkt->routerid = htonl (p->cf->global->router_id);
- pkt->areaid = htonl (ifa->an);
- pkt->autype = htons (ifa->autype);
+ pkt->routerid = htonl(p->cf->global->router_id);
+ pkt->areaid = htonl(ifa->an);
+ pkt->autype = htons(ifa->autype);
pkt->checksum = 0;
}
void
-ospf_tx_authenticate (struct ospf_iface *ifa, struct ospf_packet *pkt)
+ospf_tx_authenticate(struct ospf_iface *ifa, struct ospf_packet *pkt)
{
- pkt->autype = htons (ifa->autype);
- memcpy (pkt->authetication, ifa->aukey, 8);
+ pkt->autype = htons(ifa->autype);
+ memcpy(pkt->authetication, ifa->aukey, 8);
return;
}
static int
-ospf_rx_authenticate (struct ospf_iface *ifa, struct ospf_packet *pkt)
+ospf_rx_authenticate(struct ospf_iface *ifa, struct ospf_packet *pkt)
{
int i;
- if (pkt->autype != htons (ifa->autype))
+ if (pkt->autype != htons(ifa->autype))
return 0;
if (ifa->autype == AU_NONE)
return 1;
if (ifa->autype == AU_SIMPLE)
+ {
+ for (i = 0; i < 8; i++)
{
- for (i = 0; i < 8; i++)
- {
- if (pkt->authetication[i] != ifa->aukey[i])
- return 0;
- }
- return 1;
+ if (pkt->authetication[i] != ifa->aukey[i])
+ return 0;
}
+ return 1;
+ }
return 0;
}
void
-ospf_pkt_finalize (struct ospf_iface *ifa, struct ospf_packet *pkt)
+ospf_pkt_finalize(struct ospf_iface *ifa, struct ospf_packet *pkt)
{
- ospf_tx_authenticate (ifa, pkt);
+ ospf_tx_authenticate(ifa, pkt);
/* Count checksum */
- pkt->checksum = ipsum_calculate (pkt, sizeof (struct ospf_packet) - 8,
- (pkt + 1),
- ntohs (pkt->length) -
- sizeof (struct ospf_packet), NULL);
+ pkt->checksum = ipsum_calculate(pkt, sizeof(struct ospf_packet) - 8,
+ (pkt + 1),
+ ntohs(pkt->length) -
+ sizeof(struct ospf_packet), NULL);
}
/**
@@ -79,7 +79,7 @@ ospf_pkt_finalize (struct ospf_iface *ifa, struct ospf_packet *pkt)
* non generic functions.
*/
int
-ospf_rx_hook (sock *sk, int size)
+ospf_rx_hook(sock * sk, int size)
{
#ifndef IPV6
struct ospf_packet *ps;
@@ -89,76 +89,71 @@ ospf_rx_hook (sock *sk, int size)
if (ifa->stub)
return (1);
- DBG ("%s: RX_Hook called on interface %s.\n", p->name, sk->iface->name);
+ DBG("%s: RX_Hook called on interface %s.\n", p->name, sk->iface->name);
- ps = (struct ospf_packet *) ipv4_skip_header (sk->rbuf, &size);
+ ps = (struct ospf_packet *) ipv4_skip_header(sk->rbuf, &size);
if (ps == NULL)
- {
- log ("%s: Bad OSPF packet received: bad IP header", p->name);
- log ("%s: Discarding", p->name);
- return (1);
- }
+ {
+ log("%s: Bad OSPF packet received: bad IP header", p->name);
+ log("%s: Discarding", p->name);
+ return (1);
+ }
- if ((unsigned) size < sizeof (struct ospf_packet))
- {
- log ("%s: Bad OSPF packet received: too short (%u bytes)", p->name,
- size);
- log ("%s: Discarding", p->name);
- return (1);
- }
+ if ((unsigned) size < sizeof(struct ospf_packet))
+ {
+ log("%s: Bad OSPF packet received: too short (%u bytes)", p->name, size);
+ log("%s: Discarding", p->name);
+ return (1);
+ }
- if ((ntohs (ps->length) != size) || (size != (4 * (size / 4))))
- {
- log ("%s: Bad OSPF packet received: size field does not match",
- p->name);
- log ("%s: Discarding", p->name);
- return (1);
- }
+ if ((ntohs(ps->length) != size) || (size != (4 * (size / 4))))
+ {
+ log("%s: Bad OSPF packet received: size field does not match", p->name);
+ log("%s: Discarding", p->name);
+ return (1);
+ }
if (ps->version != OSPF_VERSION)
- {
- log ("%s: Bad OSPF packet received: version %u", p->name, ps->version);
- log ("%s: Discarding", p->name);
- return (1);
- }
+ {
+ log("%s: Bad OSPF packet received: version %u", p->name, ps->version);
+ log("%s: Discarding", p->name);
+ return (1);
+ }
- if (!ipsum_verify (ps, 16, (void *) ps + sizeof (struct ospf_packet),
- ntohs (ps->length) - sizeof (struct ospf_packet), NULL))
- {
- log ("%s: Bad OSPF packet received: bad checksum", p->name);
- log ("%s: Discarding", p->name);
- return (1);
- }
+ if (!ipsum_verify(ps, 16, (void *) ps + sizeof(struct ospf_packet),
+ ntohs(ps->length) - sizeof(struct ospf_packet), NULL))
+ {
+ log("%s: Bad OSPF packet received: bad checksum", p->name);
+ log("%s: Discarding", p->name);
+ return (1);
+ }
- if (!ospf_rx_authenticate (ifa, ps))
- {
- log ("%s: Bad OSPF packet received: bad password", p->name);
- return (1);
- }
+ if (!ospf_rx_authenticate(ifa, ps))
+ {
+ log("%s: Bad OSPF packet received: bad password", p->name);
+ return (1);
+ }
- if (ntohl (ps->areaid) != ifa->an)
- {
- log ("%s: Bad OSPF packet received: other area %ld", p->name,
- ps->areaid);
- log ("%s: Discarding", p->name);
- return (1);
- }
+ if (ntohl(ps->areaid) != ifa->an)
+ {
+ log("%s: Bad OSPF packet received: other area %ld", p->name, ps->areaid);
+ log("%s: Discarding", p->name);
+ return (1);
+ }
- if (ntohl (ps->routerid) == p->cf->global->router_id)
- {
- log ("%s: Bad OSPF packet received: received my own router ID!",
- p->name);
- log ("%s: Discarding", p->name);
- return (1);
- }
+ if (ntohl(ps->routerid) == p->cf->global->router_id)
+ {
+ log("%s: Bad OSPF packet received: received my own router ID!", p->name);
+ log("%s: Discarding", p->name);
+ return (1);
+ }
- if (ntohl (ps->routerid) == 0)
- {
- log ("%s: Bad OSPF packet received: Id 0.0.0.0 is not allowed.",
- p->name);
- log ("%s: Discarding", p->name);
- return (1);
- }
+ if (ntohl(ps->routerid) == 0)
+ {
+ log("%s: Bad OSPF packet received: Id 0.0.0.0 is not allowed.", p->name);
+ log("%s: Discarding", p->name);
+ return (1);
+ }
/* Dump packet
pu8=(u8 *)(sk->rbuf+5*4);
@@ -169,33 +164,32 @@ ospf_rx_hook (sock *sk, int size)
*/
switch (ps->type)
- {
- case HELLO_P:
- DBG ("%s: Hello received.\n", p->name);
- ospf_hello_receive((struct ospf_hello_packet *) ps, ifa, size,
- sk->faddr);
- break;
- case DBDES_P:
- DBG ("%s: Database description received.\n", p->name);
- ospf_dbdes_receive ((struct ospf_dbdes_packet *) ps, ifa, size);
- break;
- case LSREQ_P:
- DBG ("%s: Link state request received.\n", p->name);
- ospf_lsreq_receive((struct ospf_lsreq_packet *) ps, ifa, size);
- break;
- case LSUPD_P:
- DBG ("%s: Link state update received.\n", p->name);
- ospf_lsupd_receive((struct ospf_lsupd_packet *) ps, ifa, size);
- break;
- case LSACK_P:
- DBG ("%s: Link state ack received.\n", p->name);
- ospf_lsack_receive((struct ospf_lsack_packet *) ps, ifa, size);
- break;
- default:
- log ("%s: Bad packet received: wrong type %u", p->name, ps->type);
- log ("%s: Discarding\n", p->name);
- return (1);
- };
+ {
+ case HELLO_P:
+ DBG("%s: Hello received.\n", p->name);
+ ospf_hello_receive((struct ospf_hello_packet *) ps, ifa, size, sk->faddr);
+ break;
+ case DBDES_P:
+ DBG("%s: Database description received.\n", p->name);
+ ospf_dbdes_receive((struct ospf_dbdes_packet *) ps, ifa, size);
+ break;
+ case LSREQ_P:
+ DBG("%s: Link state request received.\n", p->name);
+ ospf_lsreq_receive((struct ospf_lsreq_packet *) ps, ifa, size);
+ break;
+ case LSUPD_P:
+ DBG("%s: Link state update received.\n", p->name);
+ ospf_lsupd_receive((struct ospf_lsupd_packet *) ps, ifa, size);
+ break;
+ case LSACK_P:
+ DBG("%s: Link state ack received.\n", p->name);
+ ospf_lsack_receive((struct ospf_lsack_packet *) ps, ifa, size);
+ break;
+ default:
+ log("%s: Bad packet received: wrong type %u", p->name, ps->type);
+ log("%s: Discarding\n", p->name);
+ return (1);
+ };
#else
#error RX_Hook does not work for IPv6 now.
#endif
@@ -203,7 +197,7 @@ ospf_rx_hook (sock *sk, int size)
}
void
-ospf_tx_hook (sock * sk)
+ospf_tx_hook(sock * sk)
{
struct ospf_iface *ifa;
struct proto *p;
@@ -211,11 +205,11 @@ ospf_tx_hook (sock * sk)
ifa = (struct ospf_iface *) (sk->data);
p = (struct proto *) (ifa->proto);
- DBG ("%s: TX_Hook called on interface %s\n", p->name, sk->iface->name);
+ DBG("%s: TX_Hook called on interface %s\n", p->name, sk->iface->name);
}
void
-ospf_err_hook (sock * sk, int err UNUSED)
+ospf_err_hook(sock * sk, int err UNUSED)
{
struct ospf_iface *ifa;
struct proto *p;
@@ -223,23 +217,23 @@ ospf_err_hook (sock * sk, int err UNUSED)
ifa = (struct ospf_iface *) (sk->data);
p = (struct proto *) (ifa->proto);
- DBG ("%s: Err_Hook called on interface %s\n", p->name, sk->iface->name);
+ DBG("%s: Err_Hook called on interface %s\n", p->name, sk->iface->name);
}
void
-sk_send_to_agt (sock * sk, u16 len, struct ospf_iface *ifa, u8 state)
+sk_send_to_agt(sock * sk, u16 len, struct ospf_iface *ifa, u8 state)
{
struct ospf_neighbor *n;
- WALK_LIST (NODE n, ifa->neigh_list) if (n->state >= state)
- sk_send_to (sk, len, n->ip, OSPF_PROTO);
+ WALK_LIST(NODE n, ifa->neigh_list) if (n->state >= state)
+ sk_send_to(sk, len, n->ip, OSPF_PROTO);
}
void
-sk_send_to_bdr (sock * sk, u16 len, struct ospf_iface *ifa)
+sk_send_to_bdr(sock * sk, u16 len, struct ospf_iface *ifa)
{
- if (ipa_compare (ifa->drip, ipa_from_u32 (0)) != 0)
- sk_send_to (sk, len, ifa->drip, OSPF_PROTO);
- if (ipa_compare (ifa->bdrip, ipa_from_u32 (0)) != 0)
- sk_send_to (sk, len, ifa->bdrip, OSPF_PROTO);
+ if (ipa_compare(ifa->drip, ipa_from_u32(0)) != 0)
+ sk_send_to(sk, len, ifa->drip, OSPF_PROTO);
+ if (ipa_compare(ifa->bdrip, ipa_from_u32(0)) != 0)
+ sk_send_to(sk, len, ifa->bdrip, OSPF_PROTO);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 02:49:13 +0100