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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.
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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
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redistribute is currently limited to "known" protocols. there is no
reason for this limitation, so, remove it.
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adding protocols and forgetting to update zebra_rib.c currently causes
a beyond end of array access for the default distance value. fix by
making 150 the default distance for unknown routing protocols.
150 is higher than all other IGPs but lower than iBGP (200)
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MALLOC/REALLOC aren't used properly (no rpl_malloc), remove them
while at it, infer some sane ipforwarding method from the OS value.
(v2 on that, "==" is not a proper operator for standard "test")
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* kernel_socket.c: (ifm_read) The reorganization from commit
6fe70d1b35c189cb1e488b2c26551ba7baac6148 removed setting the
interface link-layer socket address structure on routing socket
platforms. This restores saving the link-layer information because
it might be used elsewhere: rtm_write() when no gateway is given,
if_dump_vty() and rtadv_send_packet().
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bgp_bind_address is replaced with sockunion_bind.
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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.
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prefix2sockunion converts a struct prefix* to a union sockunion *;
prefix_common_bits counts the number of common bits in the prefix's
address part.
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* ospf6_message.c: (ospf6_packet_max): new function, return maximum IPv6
payload on an interface; (ospf6_hello_send, ospf6_dbdesc_send,
ospf6_dbdesc_send_newone, ospf6_lsreq_send, ospf6_lsupdate_send_neighbor,
ospf6_lsupdate_send_interface, ospf6_lsack_send_neighbor,
ospf6_lsack_send_interface): compare message size with the maximum
payload instead of the MTU.
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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
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Make ospf_flood() propagate error returned by ospf_lsa_install() further
to properly discard the malformed LSA, not just prevent the immediate
crash.
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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
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Make ospf_flood() propagate error returned by ospf_lsa_install() further
to properly discard the malformed LSA, not just prevent the immediate
crash.
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* bgp_attr.c (bgp_attr_originator_id, bgp_attr_cluster_list): provide
required arguments to bgp_attr_malformed()
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* bgp_attr.c
* bgp_attr_aggregator(): check Optional/Transitive flag bits
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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()
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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()
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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()
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* 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
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* 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
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* 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
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* extract.pl.in: use configured CPPFLAGS in cpp invocation.
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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
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As long as ospf6_packet_examin() is now the single checkpoint for
received packets, most of the old checks performed elsewhere can
be converted into assert() constructs. Malformed input data at
respective points can be attributed solely to a programming error,
not a malformed packet.
* ospf6_message.c
* ospf6_hello_print()
* ospf6_dbdesc_print()
* ospf6_lsreq_print()
* ospf6_lsupdate_print()
* ospf6_lsack_print()
* ospf6_hello_recv()
* ospf6_dbdesc_recv_master()
* ospf6_dbdesc_recv_slave()
* ospf6_lsreq_recv()
* ospf6_lsupdate_recv()
* ospf6_lsupdate_recv()
* ospf6_lsack_recv()
* ospf6_receive()
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* zebra_routemap.c: (route_set_src) get rid of the dummy family variable.
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* doc/Makefile.am: pdf target needs to depend on all the input files.
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Older versions of Quagga/Zebra would output a value in MRT table
dump files for "uptime" aka "ORIGINATED" that was a WALL clock
value. Given that uptime is now internally a bgp_clock MONOTONIC
value, the output in the MRT files is showing up as monotonic.
Note: time of MRT dump is still recorded correctly as a
time() based value, so we haven't lost that value.
Proposal is to correct the uptime output on the vty and in the
MRT files to again display something more akin to WALL time.
* bgp_dump.c: (bgp_dump_routes_func) add conditional correction
* bgp_route.c: (route_vty_out_detail) make correction conditional, move
variable declaration to beginning of the function
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Doesn't ripng needs same fix as ripd.
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The function is implemented in ospf_lsa.c, move its "extern" declaration
to ospf_lsa.h for consistency.
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* 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
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* 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
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* 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
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* 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
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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
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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
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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
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* extract.pl.in: use configured CPPFLAGS in cpp invocation.
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