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Temporary OSPFv3 development commit

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This commit is contained in:
Ondrej Zajicek
2009-08-21 09:27:52 +02:00
parent 3aab39f589
commit c3226991a0
24 changed files with 1911 additions and 1000 deletions
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203
proto/ospf/lsalib.c
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@@ -65,8 +65,8 @@ ospf_age(struct proto_ospf *po)
flush_lsa(en, po);
continue;
}
if ((en->lsa.rt == p->cf->global->router_id) &&(en->lsa.age >=
LSREFRESHTIME))
if ((en->lsa.rt == p->cf->global->router_id) &&
(en->lsa.age >= LSREFRESHTIME))
{
OSPF_TRACE(D_EVENTS, "Refreshing my LSA: Type: %u, Id: %R, Rt: %R",
en->lsa.type, en->lsa.id, en->lsa.rt);
@@ -75,7 +75,7 @@ ospf_age(struct proto_ospf *po)
en->inst_t = now;
en->ini_age = 0;
lsasum_calculate(&en->lsa, en->lsa_body);
ospf_lsupd_flood(NULL, NULL, &en->lsa, NULL, en->oa, 1);
ospf_lsupd_flood(po, NULL, NULL, &en->lsa, en->domain, 1);
continue;
}
if ((en->lsa.age = (en->ini_age + (now - en->inst_t))) >= LSA_MAXAGE)
@@ -96,7 +96,9 @@ void
htonlsah(struct ospf_lsa_header *h, struct ospf_lsa_header *n)
{
n->age = htons(h->age);
#ifdef OSPFv2
n->options = h->options;
#endif
n->type = h->type;
n->id = htonl(h->id);
n->rt = htonl(h->rt);
@@ -109,7 +111,9 @@ void
ntohlsah(struct ospf_lsa_header *n, struct ospf_lsa_header *h)
{
h->age = ntohs(n->age);
#ifdef OSPFv2
h->options = n->options;
#endif
h->type = n->type;
h->id = ntohl(n->id);
h->rt = ntohl(n->rt);
@@ -119,7 +123,7 @@ ntohlsah(struct ospf_lsa_header *n, struct ospf_lsa_header *h)
};
void
htonlsab(void *h, void *n, u8 type, u16 len)
htonlsab(void *h, void *n, u16 type, u16 len)
{
unsigned int i;
switch (type)
@@ -132,24 +136,43 @@ htonlsab(void *h, void *n, u8 type, u16 len)
nrt = n;
hrt = h;
links = hrt->links;
#ifdef OSPFv2
nrt->veb.byte = hrt->veb.byte;
nrt->padding = 0;
nrt->links = htons(hrt->links);
links = hrt->links;
#else /* OSPFv3 */
hrt->options = htonl(nrt->options);
links = (len - sizeof(struct ospf_lsa_rt)) /
sizeof(struct ospf_lsa_rt_link);
#endif
nrtl = (struct ospf_lsa_rt_link *) (nrt + 1);
hrtl = (struct ospf_lsa_rt_link *) (hrt + 1);
for (i = 0; i < links; i++)
{
(nrtl + i)->id = htonl((hrtl + i)->id);
(nrtl + i)->data = htonl((hrtl + i)->data);
(nrtl + i)->type = (hrtl + i)->type;
(nrtl + i)->notos = (hrtl + i)->notos;
(nrtl + i)->metric = htons((hrtl + i)->metric);
#ifdef OSPFv2
nrtl[i].id = htonl(hrtl[i].id);
nrtl[i].data = htonl(hrtl[i].data);
nrtl[i].type = hrtl[i].type;
nrtl[i].notos = hrtl[i].notos;
nrtl[i].metric = htons(hrtl[i].metric);
#else /* OSPFv3 */
nrtl[i].type = hrtl[i].type;
nrtl[i].padding = 0;
nrtl[i].metric = htons(hrtl[i].metric);
nrtl[i].lif = htonl(hrtl[i].lif);
nrtl[i].nif = htonl(hrtl[i].nif);
nrtl[i].id = htonl(hrtl[i].id);
#endif
}
break;
}
case LSA_T_NET:
case LSA_T_SUM_NET:
case LSA_T_SUM_RT:
case LSA_T_EXT:
{
u32 *hid, *nid;
@@ -162,59 +185,14 @@ htonlsab(void *h, void *n, u8 type, u16 len)
}
break;
}
case LSA_T_SUM_NET:
case LSA_T_SUM_RT:
{
struct ospf_lsa_sum *hs, *ns;
union ospf_lsa_sum_tm *hn, *nn;
hs = h;
ns = n;
ns->netmask = hs->netmask;
ipa_hton(ns->netmask);
hn = (union ospf_lsa_sum_tm *) (hs + 1);
nn = (union ospf_lsa_sum_tm *) (ns + 1);
for (i = 0; i < ((len - sizeof(struct ospf_lsa_sum)) /
sizeof(union ospf_lsa_sum_tm)); i++)
{
(nn + i)->metric = htonl((hn + i)->metric);
}
break;
}
case LSA_T_EXT:
{
struct ospf_lsa_ext *he, *ne;
struct ospf_lsa_ext_tos *ht, *nt;
he = h;
ne = n;
ne->netmask = he->netmask;
ipa_hton(ne->netmask);
ht = (struct ospf_lsa_ext_tos *) (he + 1);
nt = (struct ospf_lsa_ext_tos *) (ne + 1);
for (i = 0; i < ((len - sizeof(struct ospf_lsa_ext)) /
sizeof(struct ospf_lsa_ext_tos)); i++)
{
(nt + i)->etm.metric = htonl((ht + i)->etm.metric);
(nt + i)->fwaddr = (ht + i)->fwaddr;
ipa_hton((nt + i)->fwaddr);
(nt + i)->tag = htonl((ht + i)->tag);
}
break;
}
default:
bug("(hton): Unknown LSA");
}
};
void
ntohlsab(void *n, void *h, u8 type, u16 len)
ntohlsab(void *n, void *h, u16 type, u16 len)
{
unsigned int i;
switch (type)
@@ -228,22 +206,41 @@ ntohlsab(void *n, void *h, u8 type, u16 len)
nrt = n;
hrt = h;
#ifdef OSPFv2
hrt->veb.byte = nrt->veb.byte;
hrt->padding = 0;
links = hrt->links = ntohs(nrt->links);
#else /* OSPFv3 */
hrt->options = ntohl(nrt->options);
links = (len - sizeof(struct ospf_lsa_rt)) /
sizeof(struct ospf_lsa_rt_link);
#endif
nrtl = (struct ospf_lsa_rt_link *) (nrt + 1);
hrtl = (struct ospf_lsa_rt_link *) (hrt + 1);
for (i = 0; i < links; i++)
{
(hrtl + i)->id = ntohl((nrtl + i)->id);
(hrtl + i)->data = ntohl((nrtl + i)->data);
(hrtl + i)->type = (nrtl + i)->type;
(hrtl + i)->notos = (nrtl + i)->notos;
(hrtl + i)->metric = ntohs((nrtl + i)->metric);
#ifdef OSPFv2
hrtl[i].id = ntohl(nrtl[i].id);
hrtl[i].data = ntohl(nrtl[i].data);
hrtl[i].type = nrtl[i].type;
hrtl[i].notos = nrtl[i].notos;
hrtl[i].metric = ntohs(nrtl[i].metric);
#else /* OSPFv3 */
hrtl[i].type = nrtl[i].type;
hrtl[i].padding = 0;
hrtl[i].metric = ntohs(nrtl[i].metric);
hrtl[i].lif = ntohl(nrtl[i].lif);
hrtl[i].nif = ntohl(nrtl[i].nif);
hrtl[i].id = ntohl(nrtl[i].id);
#endif
}
break;
}
case LSA_T_NET:
case LSA_T_SUM_NET:
case LSA_T_SUM_RT:
case LSA_T_EXT:
{
u32 *hid, *nid;
@@ -252,53 +249,7 @@ ntohlsab(void *n, void *h, u8 type, u16 len)
for (i = 0; i < (len / sizeof(u32)); i++)
{
*(hid + i) = ntohl(*(nid + i));
}
break;
}
case LSA_T_SUM_NET:
case LSA_T_SUM_RT:
{
struct ospf_lsa_sum *hs, *ns;
union ospf_lsa_sum_tm *hn, *nn;
hs = h;
ns = n;
hs->netmask = ns->netmask;
ipa_ntoh(hs->netmask);
hn = (union ospf_lsa_sum_tm *) (hs + 1);
nn = (union ospf_lsa_sum_tm *) (ns + 1);
for (i = 0; i < ((len - sizeof(struct ospf_lsa_sum)) /
sizeof(union ospf_lsa_sum_tm)); i++)
{
(hn + i)->metric = ntohl((nn + i)->metric);
}
break;
}
case LSA_T_EXT:
{
struct ospf_lsa_ext *he, *ne;
struct ospf_lsa_ext_tos *ht, *nt;
he = h;
ne = n;
he->netmask = ne->netmask;
ipa_ntoh(he->netmask);
ht = (struct ospf_lsa_ext_tos *) (he + 1);
nt = (struct ospf_lsa_ext_tos *) (ne + 1);
for (i = 0; i < ((len - sizeof(struct ospf_lsa_ext)) /
sizeof(struct ospf_lsa_ext_tos)); i++)
{
(ht + i)->etm.metric = ntohl((nt + i)->etm.metric);
(ht + i)->fwaddr = (nt + i)->fwaddr;
ipa_ntoh((ht + i)->fwaddr);
(ht + i)->tag = ntohl((nt + i)->tag);
hid[i] = ntohl(nid[i]);
}
break;
}
@@ -343,7 +294,8 @@ lsasum_check(struct ospf_lsa_header *h, void *body)
u16 length;
b = body;
sp = (char *) &h->options;
sp = (char *) &h;
sp += 2; /* Skip Age field */
length = ntohs(h->length) - 2;
h->checksum = 0;
@@ -417,45 +369,40 @@ lsa_comp(struct ospf_lsa_header *l1, struct ospf_lsa_header *l2)
/**
* lsa_install_new - install new LSA into database
* @po: OSPF protocol
* @lsa: LSA header
* @domain: domain of LSA
* @body: pointer to LSA body
* @oa: current ospf_area
*
* This function ensures installing new LSA into LSA database. Old instance is
* replaced. Several actions are taken to detect if new routing table
* calculation is necessary. This is described in 13.2 of RFC 2328.
*/
struct top_hash_entry *
lsa_install_new(struct ospf_lsa_header *lsa, void *body, struct ospf_area *oa)
lsa_install_new(struct proto_ospf *po, struct ospf_lsa_header *lsa, u32 domain, void *body)
{
/* LSA can be temporarrily, but body must be mb_allocated. */
int change = 0;
unsigned i;
struct top_hash_entry *en;
struct proto_ospf *po = oa->po;
if ((en = ospf_hash_find_header(po->gr, oa->areaid, lsa)) == NULL)
if ((en = ospfxx_hash_find_header(po->gr, domain, lsa)) == NULL)
{
en = ospf_hash_get_header(po->gr, oa, lsa);
en = ospfxx_hash_get_header(po->gr, domain, lsa);
change = 1;
}
else
{
if ((en->lsa.length != lsa->length) || (en->lsa.options != lsa->options)
|| ((en->lsa.age == LSA_MAXAGE) || (lsa->age == LSA_MAXAGE)))
if ((en->lsa.length != lsa->length)
#ifdef OSPFv2
|| (en->lsa.options != lsa->options)
#endif
|| (en->lsa.age == LSA_MAXAGE)
|| (lsa->age == LSA_MAXAGE)
|| memcmp(en->lsa_body, body, lsa->length - sizeof(struct ospf_lsa_header)))
change = 1;
else
{
u8 *k = en->lsa_body, *l = body;
for (i = 0; i < (lsa->length - sizeof(struct ospf_lsa_header)); i++)
{
if (*(k + i) != *(l + i))
{
change = 1;
break;
}
}
}
s_rem_node(SNODE en);
}