This patch contains the following:
1. Addition of IPv6 SAFI_MULTICAST BGP routes into the BGP Multicast RIB.
2. Deletion of IPv6 SAFI_MULTICAST BGP routes from the BGP Multicast RIB.
This patch contains the following:
1. Addition of IPv4 SAFI_MULTICAST BGP routes into the BGP Multicast RIB.
2. Deletion of IPv4 SAFI_MULTICAST BGP routes from the BGP Multicast RIB.
* bgp_nexthop.c: The nexthop lookup cache has to return success for queried
nexthops if bgpd isn't connected to zebra, or else BGP without zebra doesn't
work.
* bgpd/bgp_attr.c: (bgp_attr_aspath) error message could be misleading,
clearly log what flag was incorrect.
(Problem noted in "bgpd: fix error message in bgp_attr_aspath()" in
Quagga-RE)
bgp_nexthop_onlink(): zlookup is not used here at all
bgp_nexthop_lookup_ipv6(): rely on the detection performed by "query"
function (this also changes the fallback value to 0), reorder if-block
bgp_nexthop_lookup(): idem
* bgp_nexthop.c: (show_ip_bgp_scan) transform into
show_ip_bgp_scan_tables(), which uses inet_ntop() and can dump
nexthops on request; (show_ip_bgp_scan_detail_cmd) new function
bgp_nexthop_lookup_ipv6(): declare variables where they are actually
used, drop no-op initialization (the field is already 0)
bgp_nexthop_lookup(): ditto
bgp_nexthop_check_ebgp(): rename to bgp_nexthop_onlink()
bgp_nexthop_cache_changed(): rename to bgp_nexthop_cache_different()
* (general) Move functions in headers into files, to be compiled into
shared object files. Remove inline qualifier from functions. Let the
compiler do the work.
* lib/prefix.h
* IPV4_CLASS_DE(): make consistent with counterpart macros
* bgp_packet.c
* bgp_open_receive(): test using macro instead of ">="
* bgp_route.c
* bgp_update_rsclient(): idem
* bgp_update_main(): idem
This issue has been pointed out by Lou Berger and Tim Browski.
* bgp_packet.c
* bgp_route_refresh_receive(): restore if() condition, which was
broken by commit fdbc8e77c8
getaddrinfo returns a list of socket parameters for listening. it
will contain both IPv4 and IPv6 listening sockets. unless we use
IPV6_V6ONLY on the IPv6 ones, only the socket listed first will
work. if the IPv4 one came first, the IPv6 one would get an
"Address in use" error.
this functionality was already present for bgpd and its listening
sockets. as it is needed for vtys as well, make it a common helper.
Conflicts:
lib/sockunion.c
this replaces most occurences of routing protocol lists by preprocessor
defines from route_types.h. the latter is autogenerated from
route_types.txt by a perl script (previously awk). adding a routing
protocol now is mostly a matter of changing route_types.txt and log.c.
Conflicts:
lib/route_types.awk
All daemons modified to support custom path to zserv
socket.
lib: generalize a zclient connection
zclient_socket_connect added. zclient_socket and
zclient_socket_un were hidden under static expression.
"zclient_serv_path_set" modified.
Second patch replaces "VTY_GET_LONG ("AS", as_ul, arg);"
by "VTY_GET_INTEGER_RANGE ("AS", as, arg, 1, BGP_AS4_MAX);"
as done in all other code, which parses AS numbers.
if update-source was given as interface name, bgpd was unconditionally
trying to bind to an IPv4 address from that interface.
change function to find the best-matching (number of address bits)
same-family address on the interface.
To set the TOS bits on TCP connections, platforms that restrict
capabilities need the priv level to be raised before the sockopt
is set, and this requires the ZCAP_NET_ADMIN priv.
* bgp_main.c: update _caps_p to include ZCAP_NET_ADMIN
* bgp_network.c
* bgp_connect(): request ZPRIVS_RAISE/ZPRIVS_LOWER
* bgp_listener(): request ZPRIVS_RAISE earlier
Commit 05a4936b713b9882171d0f7fb20b8439df23939e fixed some of the
attributes involved, but not all. This commit should do it.
* bgp_attr.c
* bgp_attr_originator_id()
* bgp_attr_cluster_list()
* bgp_mp_reach_parse()
* bgp_mp_unreach_parse()
Some of the recent attribute flags/length checks copied from QRE use
bgp_notify_send_with_data() directly, but master branch assumes
using bgp_attr_malformed().
* bgp_attr.c
* bgp_attr_med()
* bgp_attr_local_pref()
* bgp_attr_atomic()
* bgp_attr_originator_id()
* bgp_attr_cluster_list()
* bgp_mp_reach_parse()
* bgp_mp_unreach_parse()
* bgp_attr.[ch]
* bgp_mp_reach_parse(): add extra arguments and a uniform flag
check block
* bgp_mp_unreach_parse(): idem
* bgp_attr_parse(): provide extra arguments
* bgp_mp_attr_test.c
* parse_test(): justify respective calls
* bgp_attr.c
* bgp_attr_cluster_list(): accept extra argument, add checks for
"optional", "transitive" and "partial" bits, log each error
condition independently
* bgp_attr_parse(): provide extra arguments
* bgp_attr.c
* bgp_attr_originator_id(): accept extra argument, add checks for
"optional", "transitive" and "partial" bits, log each error
condition independently
* bgp_attr_parse(): provide extra arguments
IPv6 supports the same concept of differentiated service for routing
protocols as IPv4, but like too many things, the standards committee
decided that having two names for the same thing wasn't good enough and
introduced a third more generic term transport class.
The socket option to set transport class works the same as IPv4, but the
arguments are different.
* lib/sockopt.[ch]
* setsockopt_ipv6_tclass(): new function
* bgpd/bgp_network.c
* bgp_connect(): set socket option
* bgp_listener(): set socket option
* ospf6d/ospf6_network.c
* ospf6_set_transport_class(): new function
* ospf6_serv_sock(): set socket option
* ripngd/ripngd.c
* ripng_make_socket(): set socket option
Commit 2febf323411c1aed9d7694898f852ce2ef36a7e5 assumed every flag
bit except optional/transitive/partial unset, which at times could
not be true for "extended length" bit.
* bgp_attr.c
* bgp_attr_origin(): exclude BGP_ATTR_FLAG_EXTLEN from comparison
* bgp_attr_nexthop(): idem
* bgp_attr_med(): idem
* bgp_attr_local_pref(): idem
* bgp_attr_atomic(): idem
"While setting up a testbed, I ran across a little problem in the
parsing of the "graceful restart" BGP capability that resulted in
Quagga not actually activating it for the peer in question - when
the peer sent a single AFI/SAFI block."
* bgp_open.c
* bgp_capability_restart(): actually process the last AFI/SAFI block
* bgp_attr.c
* bgp_attr_parse(): provide extra argument to bgp_attr_aggregator()
* bgp_attr_local_pref(): use bgp_notify_send_with_data()
* bgp_attr_atomic(): idem
* bgp_attr_aggregator(): idem
Conflicts:
bgpd/bgp_attr.c
Do not check each of the Optional/Transitive/Partial attribute
flag bits, when their only valid combination is known in advance,
but still perform bit-deep error message logging. This change
assumes unused (low-order) 4 bits of the flag octet cleared.
* bgp_attr.c
* bgp_attr_origin(): rewrite check
* bgp_attr_nexthop(): idem
* bgp_attr_med(): idem
* bgp_attr_local_pref(): idem
* bgp_attr_atomic(): idem
Conflicts:
bgpd/bgp_attr.c
ORIGIN handling function used to have "partial" bit check and recent
commits added it for NEXT_HOP, MULTI_EXIT_DISC and ATOMIC_AGGREGATE
cases. This commit adds "partial" check for AS_PATH and LOCAL_PREF
cases, which should leave attributes 1 through 6 inclusive completely
covered with attribute flags checks.
* bgp_attr.c
* bgp_attr_origin(): use bit-by-bit checks for better diagnostics
* bgp_attr_aspath(): add flag check
* bgp_attr_local_pref(): idem
Conflicts:
bgpd/bgp_attr.c
* lib/prefix.h
* IPV4_CLASS_DE(): new helper macro
* bgp_attr.c
* bgp_attr_nexthop(): add check for "partial" bit, refresh flag error
reporting, explain meaning of RFC4271 section 6.3 and implement it
Conflicts:
bgpd/bgp_attr.c
- SAFI value 3 is reserved. It was assigned by RFC 2858 for a use
that was never fully implemented, so it is deprecated by this
document.
* zebra.h: rename macro
* bgp_fsm.c: (bgp_graceful_restart_timer_expire,
bgp_graceful_stale_timer_expire, bgp_stop, bgp_establish): update
* bgpd.c: (peer_nsf_stop): update
* bgp_open.c: (bgp_capability_vty_out): SAFI 3 isn't a recognized case
any more
(with resolved conflict in bgpd/bgp_packet.c)
Two macros resolving to the same integer constant broke a case block and
a more thorough merge of BGP_SAFI_VPNV4 and BGP_SAFI_VPNV6 was
performed.
* bgpd.h: MPLS-labeled VPN SAFI is AFI-independent, switch to single
* macro
* bgp_capability_test.c: update test data
* bgp_mp_attr_test.c: idem
* bgp_route.c: (bgp_maximum_prefix_overflow, bgp_table_stats_vty) update
macro and check conditions (where appropriate)
* bgp_packet.c: (bgp_route_refresh_send, bgp_capability_send,
bgp_update_receive, bgp_route_refresh_receive): idem
* bgp_open.c: (bgp_capability_vty_out, bgp_afi_safi_valid_indices,
bgp_open_capability_orf, bgp_open_capability): idem
* bgp_attr.c: (bgp_mp_reach_parse, bgp_packet_attribute,
bgp_packet_withdraw): idem
