diff options
author | Andrew J. Schorr <ajschorr@alumni.princeton.edu> | 2006-12-12 19:18:21 +0000 |
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committer | Andrew J. Schorr <ajschorr@alumni.princeton.edu> | 2006-12-12 19:18:21 +0000 |
commit | e4529636b77124285cca96a62799d0ff6a7addeb (patch) | |
tree | a8a50de7413833d5277ed7309248e03719e9efd3 /bgpd | |
parent | 43cd33a44e010f818633b7f144b5a0be352b41e7 (diff) |
[PtP over ethernet] New peer flag allows much more addressing flexibility
2006-12-12 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* if.h: (struct connected) Add new ZEBRA_IFA_PEER flag indicating
whether a peer address has been configured. Comment now shows
the new interpretation of the destination addr: if ZEBRA_IFA_PEER
is set, then it must contain the destination address, otherwise
it may contain the broadcast address or be NULL.
(CONNECTED_DEST_HOST,CONNECTED_POINTOPOINT_HOST) Remove obsolete
macros that were specific to IPv4 and not fully general.
(CONNECTED_PEER) New macro to check ZEBRA_IFA_PEER flag.
(CONNECTED_PREFIX) New macro giving the prefix to insert into
the RIB: if CONNECTED_PEER, then use the destination (peer) address,
else use the address field.
(CONNECTED_ID) New macro to come up with an identifying address
for the struct connected.
* if.c: (if_lookup_address, connected_lookup_address) Streamline
logic with new CONNECTED_PREFIX macro.
* prefix.h: (PREFIX_COPY_IPV4, PREFIX_COPY_IPV6) New macros
for better performance than the general prefix_copy function.
* zclient.c: (zebra_interface_address_read) For non-null destination
addresses, set prefixlen to equal the address prefixlen. This
is needed to get the new CONNECTED_PREFIX macro to work properly.
* connected.c: (connected_up_ipv4, connected_down_ipv4,
connected_up_ipv6, connected_down_ipv6) Simplify logic using the
new CONNECTED_PREFIX macro.
(connected_add_ipv4) Set prefixlen in destination addresses (required
by the CONNECTED_PREFIX macro). Use CONNECTED_PEER macro instead
of testing for IFF_POINTOPOINT. Delete invalid warning message.
Warn about cases where the ZEBRA_IFA_PEER is set but no
destination address has been supplied (and turn off the flag).
(connected_add_ipv6) Add new flags argument so callers may set
the ZEBRA_IFA_PEER flag. If peer/broadcast address satisfies
IN6_IS_ADDR_UNSPECIFIED, then reject it with a warning.
Set prefixlen in destination address so CONNECTED_PREFIX will work.
* connected.h: (connected_add_ipv6) Add new flags argument so
callers may set the ZEBRA_IFA_PEER flag.
* interface.c: (connected_dump_vty) Use CONNECTED_PEER macro
to decide whether the destination address is a peer or broadcast
address (instead of checking IFF_BROADCAST and IFF_POINTOPOINT).
* if_ioctl.c: (if_getaddrs) Instead of setting a peer address
only when the IFF_POINTOPOINT is set, we now accept a peer
address whenever it is available and not the same as the local
address. Otherwise (no peer address assigned), we check
for a broadcast address (regardless of the IFF_BROADCAST flag).
And must now pass a flags value of ZEBRA_IFA_PEER to
connected_add_ipv4 when a peer address is assigned.
The same new logic is used with the IPv6 code as well (and we
pass the new flags argument to connected_add_ipv6).
(if_get_addr) Do not bother to check IFF_POINTOPOINT: just
issue the SIOCGIFDSTADDR ioctl and see if we get back
a peer address not matching the local address (and set
the ZEBRA_IFA_PEER in that case). If there's no peer address,
try to grab SIOCGIFBRDADDR regardless of whether IFF_BROADCAST is set.
* if_ioctl_solaris.c: (if_get_addr) Just try the SIOCGLIFDSTADDR ioctl
without bothering to check the IFF_POINTOPOINT flag. And if
no peer address was found, just try the SIOCGLIFBRDADDR ioctl
without checking the IFF_BROADCAST flag. Call connected_add_ipv4
and connected_add_ipv6 with appropriate flags.
* if_proc.c: (ifaddr_proc_ipv6) Must pass new flags argument to
connected_add_ipv6.
* kernel_socket.c: (ifam_read) Must pass new flags argument to
connected_add_ipv6.
* rt_netlink.c: (netlink_interface_addr) Copy logic from iproute2
to determine local and possible peer address (so there's no longer
a test for IFF_POINTOPOINT). Set ZEBRA_IFA_PEER flag appropriately.
Pass new flags argument to connected_add_ipv6.
(netlink_address) Test !CONNECTED_PEER instead of if_is_broadcast
to determine whether the connected destination address is a
broadcast address.
* bgp_nexthop.c: (bgp_connected_add, bgp_connected_delete)
Simplify logic by using new CONNECTED_PREFIX macro.
* ospf_interface.c: (ospf_if_is_configured, ospf_if_lookup_by_prefix,
ospf_if_lookup_recv_if) Simplify logic using new CONNECTED_PREFIX
macro.
* ospf_lsa.c: (lsa_link_ptop_set) Using the new CONNECTED_PREFIX
macro, both options collapse into the same code.
* ospf_snmp.c: (ospf_snmp_if_update) Simplify logic using new
CONNECTED_ID macro.
(ospf_snmp_is_if_have_addr) Simplify logic using new CONNECTED_PREFIX
macro.
* ospf_vty.c: (show_ip_ospf_interface_sub) Use new CONNECTED_PEER macro
instead of testing the IFF_POINTOPOINT flag.
* ospfd.c: (ospf_network_match_iface) Use new CONNECTED_PEER macro
instead of testing with if_is_pointopoint. And add commented-out
code to implement alternative (in my opinion) more elegant behavior
that has no special-case treatment for PtP addresses.
(ospf_network_run) Use new CONNECTED_ID macro to simplify logic.
* rip_interface.c: (rip_interface_multicast_set) Use new CONNECTED_ID
macro to simplify logic.
(rip_request_interface_send) Fix minor bug: ipv4_broadcast_addr does
not give a useful result if prefixlen is 32 (we require a peer
address in such cases).
* ripd.c: (rip_update_interface) Fix same bug as above.
Diffstat (limited to 'bgpd')
-rw-r--r-- | bgpd/ChangeLog | 5 | ||||
-rw-r--r-- | bgpd/bgp_nexthop.c | 46 |
2 files changed, 10 insertions, 41 deletions
diff --git a/bgpd/ChangeLog b/bgpd/ChangeLog index 97f78caa..257b0eeb 100644 --- a/bgpd/ChangeLog +++ b/bgpd/ChangeLog @@ -1,3 +1,8 @@ +2006-12-12 Andrew J. Schorr <ajschorr@alumni.princeton.edu> + + * bgp_nexthop.c: (bgp_connected_add, bgp_connected_delete) + Simplify logic by using new CONNECTED_PREFIX macro. + 2006-12-07 Paul Jakma <paul.jakma@sun.com> * bgp_fsm.c: Bug #302 fix, diagnosis, suggestions and testing diff --git a/bgpd/bgp_nexthop.c b/bgpd/bgp_nexthop.c index bfc41a18..50ae74e4 100644 --- a/bgpd/bgp_nexthop.c +++ b/bgpd/bgp_nexthop.c @@ -543,7 +543,6 @@ bgp_connected_add (struct connected *ifc) { struct prefix p; struct prefix *addr; - struct prefix *dest; struct interface *ifp; struct bgp_node *rn; struct bgp_connected_ref *bc; @@ -557,19 +556,10 @@ bgp_connected_add (struct connected *ifc) return; addr = ifc->address; - dest = ifc->destination; if (addr->family == AF_INET) { - memset (&p, 0, sizeof (struct prefix)); - p.family = AF_INET; - p.prefixlen = addr->prefixlen; - - if (CONNECTED_POINTOPOINT_HOST(ifc)) - p.u.prefix4 = dest->u.prefix4; - else - p.u.prefix4 = addr->u.prefix4; - + PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); apply_mask_ipv4 ((struct prefix_ipv4 *) &p); if (prefix_ipv4_any ((struct prefix_ipv4 *) &p)) @@ -590,17 +580,9 @@ bgp_connected_add (struct connected *ifc) } } #ifdef HAVE_IPV6 - if (addr->family == AF_INET6) + else if (addr->family == AF_INET6) { - memset (&p, 0, sizeof (struct prefix)); - p.family = AF_INET6; - p.prefixlen = addr->prefixlen; - - if (if_is_pointopoint (ifp) && dest) - p.u.prefix6 = dest->u.prefix6; - else - p.u.prefix6 = addr->u.prefix6; - + PREFIX_COPY_IPV6(&p, CONNECTED_PREFIX(ifc)); apply_mask_ipv6 ((struct prefix_ipv6 *) &p); if (IN6_IS_ADDR_UNSPECIFIED (&p.u.prefix6)) @@ -631,7 +613,6 @@ bgp_connected_delete (struct connected *ifc) { struct prefix p; struct prefix *addr; - struct prefix *dest; struct interface *ifp; struct bgp_node *rn; struct bgp_connected_ref *bc; @@ -642,19 +623,10 @@ bgp_connected_delete (struct connected *ifc) return; addr = ifc->address; - dest = ifc->destination; if (addr->family == AF_INET) { - memset (&p, 0, sizeof (struct prefix)); - p.family = AF_INET; - p.prefixlen = addr->prefixlen; - - if (CONNECTED_POINTOPOINT_HOST(ifc)) - p.u.prefix4 = dest->u.prefix4; - else - p.u.prefix4 = addr->u.prefix4; - + PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); apply_mask_ipv4 ((struct prefix_ipv4 *) &p); if (prefix_ipv4_any ((struct prefix_ipv4 *) &p)) @@ -677,15 +649,7 @@ bgp_connected_delete (struct connected *ifc) #ifdef HAVE_IPV6 else if (addr->family == AF_INET6) { - memset (&p, 0, sizeof (struct prefix)); - p.family = AF_INET6; - p.prefixlen = addr->prefixlen; - - if (if_is_pointopoint (ifp) && dest) - p.u.prefix6 = dest->u.prefix6; - else - p.u.prefix6 = addr->u.prefix6; - + PREFIX_COPY_IPV6(&p, CONNECTED_PREFIX(ifc)); apply_mask_ipv6 ((struct prefix_ipv6 *) &p); if (IN6_IS_ADDR_UNSPECIFIED (&p.u.prefix6)) |