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authorMartin Mares <mj@ucw.cz>1999-05-07 15:46:16 +0200
committerMartin Mares <mj@ucw.cz>1999-05-07 15:46:16 +0200
commita2697f02ac5109e749bff4d07bee6cedd0ab650b (patch)
tree234f142162a8c4a79906513a492dc19dc4ccdbcf /sysdep/linux/netlink
parent9a158361da249e0eab1e0f7bd2c7dbe9f32eddfa (diff)
downloadbird-a2697f02ac5109e749bff4d07bee6cedd0ab650b.tar
bird-a2697f02ac5109e749bff4d07bee6cedd0ab650b.zip
Netlink support for secondary interface addresses.
Diffstat (limited to 'sysdep/linux/netlink')
-rw-r--r--sysdep/linux/netlink/netlink.c58
1 files changed, 27 insertions, 31 deletions
diff --git a/sysdep/linux/netlink/netlink.c b/sysdep/linux/netlink/netlink.c
index 5a15607..10eb27a 100644
--- a/sysdep/linux/netlink/netlink.c
+++ b/sysdep/linux/netlink/netlink.c
@@ -316,7 +316,7 @@ nl_parse_addr(struct nlmsghdr *h)
struct ifaddrmsg *i;
struct rtattr *a[IFA_ANYCAST+1];
int new = h->nlmsg_type == RTM_NEWADDR;
- struct iface f;
+ struct ifa ifa;
struct iface *ifi;
if (!(i = nl_checkin(h, sizeof(*i))) || !nl_parse_attrs(IFA_RTA(i), a, sizeof(a)))
@@ -330,11 +330,6 @@ nl_parse_addr(struct nlmsghdr *h)
log(L_ERR "nl_parse_addr: Malformed message received");
return;
}
- if (i->ifa_flags & IFA_F_SECONDARY)
- {
- DBG("KIF: Received address message for secondary address which is not supported.\n"); /* FIXME */
- return;
- }
ifi = if_find_by_index(i->ifa_index);
if (!ifi)
@@ -342,41 +337,42 @@ nl_parse_addr(struct nlmsghdr *h)
log(L_ERR "KIF: Received address message for unknown interface %d\n", i->ifa_index);
return;
}
- memcpy(&f, ifi, sizeof(f));
if (i->ifa_prefixlen > 32 || i->ifa_prefixlen == 31 ||
- (f.flags & IF_UNNUMBERED) && i->ifa_prefixlen != 32)
+ (ifi->flags & IF_UNNUMBERED) && i->ifa_prefixlen != 32)
{
- log(L_ERR "KIF: Invalid prefix length for interface %s: %d\n", f.name, i->ifa_prefixlen);
+ log(L_ERR "KIF: Invalid prefix length for interface %s: %d\n", ifi->name, i->ifa_prefixlen);
new = 0;
}
- f.ip = f.brd = f.opposite = IPA_NONE;
- if (!new)
+ bzero(&ifa, sizeof(ifa));
+ ifa.iface = ifi;
+ if (i->ifa_flags & IFA_F_SECONDARY)
+ ifa.flags |= IA_SECONDARY;
+ memcpy(&ifa.ip, RTA_DATA(a[IFA_LOCAL]), sizeof(ifa.ip));
+ ifa.ip = ipa_ntoh(ifa.ip);
+ ifa.pxlen = i->ifa_prefixlen;
+ if (ifi->flags & IF_UNNUMBERED)
{
- DBG("KIF: IF%d IP address deleted\n");
- f.pxlen = 0;
+ memcpy(&ifa.opposite, RTA_DATA(a[IFA_ADDRESS]), sizeof(ifa.opposite));
+ ifa.opposite = ifa.brd = ipa_ntoh(ifa.opposite);
}
- else
+ else if ((ifi->flags & IF_BROADCAST) && a[IFA_BROADCAST])
{
- memcpy(&f.ip, RTA_DATA(a[IFA_LOCAL]), sizeof(f.ip));
- f.ip = ipa_ntoh(f.ip);
- f.pxlen = i->ifa_prefixlen;
- if (f.flags & IF_UNNUMBERED)
- {
- memcpy(&f.opposite, RTA_DATA(a[IFA_ADDRESS]), sizeof(f.opposite));
- f.opposite = f.brd = ipa_ntoh(f.opposite);
- }
- else if ((f.flags & IF_BROADCAST) && a[IFA_BROADCAST])
- {
- memcpy(&f.brd, RTA_DATA(a[IFA_BROADCAST]), sizeof(f.brd));
- f.brd = ipa_ntoh(f.brd);
- }
- /* else a NBMA link */
- f.prefix = ipa_and(f.ip, ipa_mkmask(f.pxlen));
- DBG("KIF: IF%d IP address set to %I, net %I/%d, brd %I, opp %I\n", f.index, f.ip, f.prefix, f.pxlen, f.brd, f.opposite);
+ memcpy(&ifa.brd, RTA_DATA(a[IFA_BROADCAST]), sizeof(ifa.brd));
+ ifa.brd = ipa_ntoh(ifa.brd);
}
- if_update(&f);
+ /* else a NBMA link */
+ ifa.prefix = ipa_and(ifa.ip, ipa_mkmask(ifa.pxlen));
+
+ DBG("KIF: IF%d(%s): %s IPA %I, net %I/%d, brd %I, opp %I\n",
+ ifi->index, ifi->name,
+ new ? "added" : "removed",
+ ifa.ip, ifa.prefix, ifa.pxlen, ifa.brd, ifa.opposite);
+ if (new)
+ ifa_update(&ifa);
+ else
+ ifa_delete(&ifa);
}
void