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authorOndrej Filip <feela@network.cz>2000-03-31 02:21:41 +0200
committerOndrej Filip <feela@network.cz>2000-03-31 02:21:41 +0200
commitf45fd3164bf2f9342e12e867f8d68c7fc77d3177 (patch)
tree647d271be15eb20a1228db8507e8b73df84e7c25 /proto/ospf/lsalib.c
parent14a7921c83f0ecfc8793b3a38e4ac16ae9bd75d3 (diff)
downloadbird-f45fd3164bf2f9342e12e867f8d68c7fc77d3177.tar
bird-f45fd3164bf2f9342e12e867f8d68c7fc77d3177.zip
Sending of lspd as responce to lsreq done.
Diffstat (limited to 'proto/ospf/lsalib.c')
-rw-r--r--proto/ospf/lsalib.c222
1 files changed, 222 insertions, 0 deletions
diff --git a/proto/ospf/lsalib.c b/proto/ospf/lsalib.c
new file mode 100644
index 0000000..f74cb76
--- /dev/null
+++ b/proto/ospf/lsalib.c
@@ -0,0 +1,222 @@
+/*
+ * BIRD -- OSPF
+ *
+ * (c) 1999-2000 Ondrej Filip <feela@network.cz>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#include "ospf.h"
+
+void
+htonlsah(struct ospf_lsa_header *h, struct ospf_lsa_header *n)
+{
+ n->age=htons(h->age);
+ n->options=h->options;
+ n->type=h->type;
+ n->id=htonl(h->id);
+ n->rt=htonl(h->rt);
+ n->sn=htonl(h->sn);
+ n->checksum=htons(h->checksum);
+ n->length=htons(h->length);
+};
+
+void
+ntohlsah(struct ospf_lsa_header *n, struct ospf_lsa_header *h)
+{
+ h->age=ntohs(n->age);
+ h->options=n->options;
+ h->type=n->type;
+ h->id=ntohl(n->id);
+ h->rt=ntohl(n->rt);
+ h->sn=ntohl(n->sn);
+ h->checksum=ntohs(n->checksum);
+ h->length=ntohs(n->length);
+};
+
+void
+htonlsab(void *h, void *n, u8 type, u16 len)
+{
+ unsigned int i;
+ switch(type)
+ {
+ case LSA_T_RT:
+ {
+ struct ospf_lsa_rt *hrt, *nrt;
+ struct ospf_lsa_rt_link *hrtl,*nrtl;
+
+ nrt=n;
+ hrt=h;
+
+ nrt->VEB=hrt->VEB;
+ nrt->padding=0;
+ nrt->links=htons(hrt->links);
+ nrtl=(struct ospf_lsa_rt_link *)(nrt+1);
+ hrtl=(struct ospf_lsa_rt_link *)(hrt+1);
+ for(i=0;i<hrt->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);
+ }
+ break;
+ }
+ case LSA_T_NET:
+ {
+ u32 *hid,*nid;
+
+ nid=n;
+ hid=h;
+
+ for(i=0;i<(len/sizeof(u32));i++)
+ {
+ *(nid+i)=htonl(*(hid+i));
+ }
+ break;
+ }
+ case LSA_T_SUM_NET:
+ case LSA_T_SUM_RT:
+ {
+ struct ospf_lsa_summ *hs, *ns;
+ struct ospf_lsa_summ_net *hn, *nn;
+
+ hs=h;
+ ns=n;
+
+ ns->netmask=htonl(hs->netmask);
+
+ hn=(struct ospf_lsa_summ_net *)(hs+1);
+ nn=(struct ospf_lsa_summ_net *)(ns+1);
+
+ for(i=0;i<((len-sizeof(struct ospf_lsa_summ))/
+ sizeof(struct ospf_lsa_summ_net));i++)
+ {
+ (nn+i)->tos=(hn+i)->tos;
+ (nn+i)->metric=htons((hn+i)->metric);
+ (nn+i)->padding=0;
+ }
+ break;
+ }
+ case LSA_T_EXT:
+ {
+ struct ospf_lsa_ext *he, *ne;
+ struct ospf_lsa_ext_tos *ht, *nt;
+
+ he=h;
+ ne=n;
+
+ ne->netmask=htonl(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++)
+ {
+ (nt+i)->etos=(ht+i)->etos;
+ (nt+i)->padding=0;
+ (nt+i)->metric=htons((ht+i)->metric);
+ (nt+i)->fwaddr=htonl((ht+i)->fwaddr);
+ (nt+i)->tag=htonl((ht+i)->tag);
+ }
+ break;
+ }
+ default: die("(hton): Unknown LSA\n");
+ }
+};
+
+void
+ntohlsab(void *n, void *h, u8 type, u16 len)
+{
+ unsigned int i;
+ switch(type)
+ {
+ case LSA_T_RT:
+ {
+ struct ospf_lsa_rt *hrt, *nrt;
+ struct ospf_lsa_rt_link *hrtl,*nrtl;
+
+ nrt=n;
+ hrt=h;
+
+ hrt->VEB=nrt->VEB;
+ hrt->padding=0;
+ hrt->links=ntohs(nrt->links);
+ nrtl=(struct ospf_lsa_rt_link *)(nrt+1);
+ hrtl=(struct ospf_lsa_rt_link *)(hrt+1);
+ for(i=0;i<hrt->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);
+ }
+ break;
+ }
+ case LSA_T_NET:
+ {
+ u32 *hid,*nid;
+
+ hid=h;
+ nid=n;
+
+ 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_summ *hs, *ns;
+ struct ospf_lsa_summ_net *hn, *nn;
+
+ hs=h;
+ ns=n;
+
+ hs->netmask=ntohl(ns->netmask);
+
+ hn=(struct ospf_lsa_summ_net *)(hs+1);
+ nn=(struct ospf_lsa_summ_net *)(ns+1);
+
+ for(i=0;i<((len-sizeof(struct ospf_lsa_summ))/
+ sizeof(struct ospf_lsa_summ_net));i++)
+ {
+ (hn+i)->tos=(nn+i)->tos;
+ (hn+i)->metric=ntohs((nn+i)->metric);
+ (hn+i)->padding=0;
+ }
+ break;
+ }
+ case LSA_T_EXT:
+ {
+ struct ospf_lsa_ext *he, *ne;
+ struct ospf_lsa_ext_tos *ht, *nt;
+
+ he=h;
+ ne=n;
+
+ he->netmask=ntohl(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++)
+ {
+ (ht+i)->etos=(nt+i)->etos;
+ (ht+i)->padding=0;
+ (ht+i)->metric=ntohs((nt+i)->metric);
+ (ht+i)->fwaddr=ntohl((nt+i)->fwaddr);
+ (ht+i)->tag=ntohl((nt+i)->tag);
+ }
+ break;
+ }
+ default: die("(ntoh): Unknown LSA\n");
+ }
+};
+