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Integrate MRT Table Dump (RFC 6396) into BIRD
Asynchronous periodic mrt table dumps of routes configuration in bird.conf:
mrtdump routes {
[ filename "<format>"; ]
[ table <name>|"<wildcard name>"; ]
[ period <num>; ]
[ filter <filter>|where <condition>; ]
}
Synchronous mrt table dumps of routes in BIRD client:
mrtdump routes [table <name>|"<wildcard name>"] [to "<filename format>"] [filter <filter>|where <condition>]
This commit is contained in:
Pavel Tvrdík
parent
de77e5cdd0
commit
11fabd2d6b
@ -53,6 +53,7 @@
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#include "lib/string.h"
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#include "lib/event.h"
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#include "lib/timer.h"
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#include "lib/unix.h"
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#include "conf/conf.h"
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#include "filter/filter.h"
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@ -91,7 +92,7 @@ config_alloc(byte *name)
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linpool *l = lp_new(p, 4080);
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struct config *c = lp_allocz(l, sizeof(struct config));
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c->mrtdump_file = -1; /* Hack, this should be sysdep-specific */
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c->mrt_proto_file = -1; /* Indication that the file descriptor should not be used */
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c->pool = p;
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cfg_mem = c->mem = l;
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c->file_name = cfg_strdup(name);
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35
conf/conf.h
35
conf/conf.h
@ -14,8 +14,36 @@
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#include "lib/resource.h"
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#include "lib/timer.h"
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/* Configuration structures */
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/* Configuration structure */
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#define MRT_TABLE_NOT_CONFIGURED -1
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#define MRT_TABLE_DEFAULT_PERIOD 60
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#define MRT_TABLE_DEFAULT_FILENAME_FMT "%f_%F_%T.mrt"
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#define MRT_TABLE_DEFAULT_TABLENAME_PATTERN "*"
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struct mrt_table_common_config {
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u32 period; /* Time in seconds between Table Dump */
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char *filename_fmt;
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struct filter *filter;
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struct cli *cli; /* Client console or NULL */
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struct config *config; /* Configuration or NULL */
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};
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/* Template of configuration that can be apply at any table */
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struct mrt_table_config {
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node n; /* Node in config->mrt_table_dumps */
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struct mrt_table_common_config c;
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char *rtable_wildcard_name;
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};
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/* Configuration that is specific per table */
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struct mrt_table_individual_config {
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node n; /* Node in rtable_config->mrt_table_dumps */
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struct mrt_table_common_config c;
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timer *timer; /* Timer for periodic dumps */
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struct rtable_config *table_cf;
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bird_clock_t next_dump;
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};
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struct config {
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pool *pool; /* Pool the configuration is stored in */
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@ -23,9 +51,10 @@ struct config {
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list protos; /* Configured protocol instances (struct proto_config) */
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list tables; /* Configured routing tables (struct rtable_config) */
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list roa_tables; /* Configured ROA tables (struct roa_table_config) */
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list logfiles; /* Configured log fils (sysdep) */
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list logfiles; /* Configured log files (sysdep) */
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list mrt_table_dumps; /* Configured MRT table dumps (struct mrt_table_config) */
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int mrtdump_file; /* Configured MRTDump file (sysdep, fd in unix) */
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int mrt_proto_file; /* Configured MRTDump file (sysdep, fd in unix) for Protocols*/
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char *syslog_name; /* Name used for syslog (NULL -> no syslog) */
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struct rtable_config *master_rtc; /* Configuration of master routing table */
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struct iface_patt *router_id_from; /* Configured list of router ID iface patterns */
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@ -362,16 +362,49 @@ protocol rip {
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seconds, zero means disabled. Default: disabled (0).
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<tag>mrtdump "<m/filename/"</tag>
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Set MRTdump file name. This option must be specified to allow MRTdump
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feature. Default: no dump file.
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Set MRTdump protocols file name. This option must be specified to allow MRTdump
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protocols feature. Default: no dump file.
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<tag>mrtdump protocols all|off|{ states, messages }</tag>
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Set global defaults of MRTdump options. See <cf/mrtdump/ in the
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Set global defaults of MRTdump protocol options. See <ref id="protocol-mrtdump" name="mrtdump"> in the
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following section. Default: off.
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<tag>filter <m/name local variables/{ <m/commands/ }</tag>
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Define a filter. You can learn more about filters in the following
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chapter.
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<tag><label id="dsc-mrtdump-routes">mrtdump routes [ { <m/option1; option2; .../ } ]</tag>
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Configure periodic <htmlurl url="https://tools.ietf.org/html/rfc6396#section-4.3" name="MRT Table Dump v2 (RFC 6396)">
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of routes (not only BGP).
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All mrtdump options are optional. Default: disabled
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<descrip>
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<tag/ <cf>filename "<m/format/" </cf> /
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Configure file to output.
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Filename format is the <it/strftime(3)/-like format (see
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<it/man strftime/ for details) extended of a key <cf/%f/ for replacing with the name of the table.
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Default: <cf>"%f_%F_%T.mrt"</cf>
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<tag/ <cf>table <m/name/|"<m/pattern/" </cf> /
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Choosing tables from which will be routes taken.
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Can be used wildcards <cf>*</cf> and <cf>?</cf>.
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Default: <cf>"*"</cf> for all tables
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<tag/ <cf>period <m/num/ </cf> /
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Configures the interval in seconds between mrt table dumps.
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Default: <cf>60</cf> seconds
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<tag/ <cf>filter <m/filter/ | where <m/condition/</cf> /
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Configure filtering dumping routes. Filters are more described in <ref id="chapt-filters" name="the chapter Filters">.
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Default: Accept all
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</descrip>
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Example:
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<p><code>
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mrtdump routes {
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filename "%f-%s.mrt"; # dumps will be saved into files named like 'tableA-1437119435.mrt'
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table "t*"; # only routes from tables starts with character 't'
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period 10; # 10 seconds interval between dumps
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where source = RTS_BGP; # only routes from BGP protocols
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}
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mrtdump routes; # another mrtdump route config with default options</code>
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<tag>filter <m/name local variables/ { <m/commands/ }</tag>
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Define a filter. You can learn more about filters in <ref id="chapt-filters" name="the chapter Filters">.
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<tag>function <m/name/ (<m/parameters/) <m/local variables/ { <m/commands/ }</tag>
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Define a function. You can learn more about functions in the following chapter.
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@ -453,13 +486,13 @@ protocol rip {
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hh:mm:ss) for <cf/base/ and <cf/log/. These timeformats could be set by
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<cf/old short/ and <cf/old long/ compatibility shorthands.
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<tag>table <m/name/ [sorted]</tag>
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Create a new routing table. The default routing table is created
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<tag>table <m/name/ [sorted] </tag>
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Create a new routing table. The default <cf/master/ routing table is created
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implicitly, other routing tables have to be added by this command.
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Option <cf/sorted/ can be used to enable sorting of routes, see
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<ref id="dsc-sorted" name="sorted table"> description for details.
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<tag>roa table <m/name/ [ { roa table options ... } ]</tag>
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<tag>roa table <m/name/ [ { <m/roa table options/ } ]</tag>
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Create a new ROA (Route Origin Authorization) table. ROA tables can be
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used to validate route origination of BGP routes. A ROA table contains
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ROA entries, each consist of a network prefix, a max prefix length and
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@ -511,8 +544,9 @@ agreement").
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protocol, <cf/events/ for events internal to the protocol and <cf/packets/
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for packets sent and received by the protocol. Default: off.
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<tag>mrtdump all|off|{ states, messages }</tag>
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Set protocol MRTdump flags. MRTdump is a standard binary format for
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<tag><label id="protocol-mrtdump">mrtdump all|off|{ states, messages }</tag>
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Set protocol MRTdump flags. MRTdump is a standard binary format (see
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<htmlurl url="https://tools.ietf.org/html/rfc6396#section-4.4" name="BGP4MP in RFC 6396">)) for
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logging information from routing protocols and daemons. These flags
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control what kind of information is logged from the protocol to the
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MRTdump file (which must be specified by global <cf/mrtdump/ option, see
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@ -752,7 +786,7 @@ This argument can be omitted if there exists only a single instance.
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Show the list of symbols defined in the configuration (names of
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protocols, routing tables etc.).
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<tag>show route [[for] <m/prefix/|<m/IP/] [table <m/sym/] [filter <m/f/|where <m/c/] [(export|preexport|noexport) <m/p/] [protocol <m/p/] [<m/options/]</tag>
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<tag>show route [[for] <m/prefix/|<m/IP/] [table <m/name/] [filter <m/f/|where <m/c/] [(export|preexport|noexport) <m/p/] [protocol <m/p/] [<m/options/]</tag>
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Show contents of a routing table (by default of the main one or the
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table attached to a respective protocol), that is routes, their metrics
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and (in case the <cf/all/ switch is given) all their attributes.
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@ -787,7 +821,7 @@ This argument can be omitted if there exists only a single instance.
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number of networks, number of routes before and after filtering). If
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you use <cf/count/ instead, only the statistics will be printed.
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<tag>show roa [<m/prefix/ | in <m/prefix/ | for <m/prefix/] [as <m/num/] [table <m/t/>]</tag>
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<tag>show roa [<m/prefix/ | in <m/prefix/ | for <m/prefix/] [as <m/num/] [table <m/name/]</tag>
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Show contents of a ROA table (by default of the first one). You can
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specify a <m/prefix/ to print ROA entries for a specific network. If you
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use <cf>for <m/prefix/</cf>, you'll get all entries relevant for route
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@ -796,16 +830,16 @@ This argument can be omitted if there exists only a single instance.
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entries covered by the network prefix. You could also use <cf/as/ option
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to show just entries for given AS.
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<tag>add roa <m/prefix/ max <m/num/] as <m/num/ [table <m/t/>]</tag>
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<tag>add roa <m/prefix/ max <m/num/ as <m/num/ [table <m/name/]</tag>
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Add a new ROA entry to a ROA table. Such entry is called <it/dynamic/
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compared to <it/static/ entries specified in the config file. These
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dynamic entries survive reconfiguration.
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<tag>delete roa <m/prefix/ max <m/num/] as <m/num/ [table <m/t/>]</tag>
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<tag>delete roa <m/prefix/ max <m/num/ as <m/num/ [table <m/name/]</tag>
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Delete the specified ROA entry from a ROA table. Only dynamic ROA
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entries (i.e., the ones added by <cf/add roa/ command) can be deleted.
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<tag>flush roa [table <m/t/>]</tag>
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<tag>flush roa [table <m/name/]</tag>
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Remove all dynamic ROA entries from a ROA table.
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<tag>configure [soft] ["<m/config file/"] [timeout [<m/num/]]</tag>
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@ -873,6 +907,11 @@ This argument can be omitted if there exists only a single instance.
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<tag>dump resources|sockets|interfaces|neighbors|attributes|routes|protocols</tag>
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Dump contents of internal data structures to the debugging output.
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<tag>mrtdump routes [table <m/name/|"<m/pattern/"] [to "<m/filename/"] [filter <m/filter/ | where <m/condition/]</tag>
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Once the specified routes will be saved into file(s) named based on <m/filename/ format.
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For more details about mrtdump options see <ref id="dsc-mrtdump-routes" name="mrtdump routes in the chapter Configuration">.
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<tag>echo all|off|{ <m/list of log classes/ } [ <m/buffer-size/ ]</tag>
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Control echoing of log messages to the command-line output.
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See <ref id="dsc-log" name="log option"> for a list of log classes.
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@ -882,7 +921,7 @@ This argument can be omitted if there exists only a single instance.
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</descrip>
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<chapt>Filters
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<chapt><label id="chapt-filters">Filters
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<sect>Introduction
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@ -16,7 +16,7 @@
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#endif
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int
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MATCH_FUNC_NAME(byte *p, byte *s)
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MATCH_FUNC_NAME(const byte *p, const byte *s)
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{
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while (*p)
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{
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@ -24,6 +24,6 @@ int buffer_vprint(buffer *buf, const char *fmt, va_list args);
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int buffer_print(buffer *buf, const char *fmt, ...);
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void buffer_puts(buffer *buf, const char *str);
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int patmatch(byte *pat, byte *str);
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int patmatch(const byte *pat, const byte *str);
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#endif
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@ -1,5 +1,5 @@
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source=rt-table.c rt-fib.c rt-attr.c rt-roa.c proto.c iface.c rt-dev.c password.c cli.c locks.c cmds.c neighbor.c \
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a-path.c a-set.c
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a-path.c a-set.c mrtdump.c
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root-rel=../
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dir-name=nest
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@ -23,6 +23,7 @@ static struct roa_table_config *this_roa_table;
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static list *this_p_list;
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static struct password_item *this_p_item;
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static int password_id;
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static struct mrt_table_config *this_mrt_table_config;
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static void
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iface_patt_check(void)
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@ -60,7 +61,7 @@ CF_KEYWORDS(PASSWORD, FROM, PASSIVE, TO, ID, EVENTS, PACKETS, PROTOCOLS, INTERFA
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CF_KEYWORDS(PRIMARY, STATS, COUNT, FOR, COMMANDS, PREEXPORT, NOEXPORT, GENERATE, ROA)
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CF_KEYWORDS(LISTEN, BGP, V6ONLY, DUAL, ADDRESS, PORT, PASSWORDS, DESCRIPTION, SORTED)
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CF_KEYWORDS(RELOAD, IN, OUT, MRTDUMP, MESSAGES, RESTRICT, MEMORY, IGP_METRIC, CLASS, DSCP)
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CF_KEYWORDS(GRACEFUL, RESTART, WAIT, MAX, FLUSH, AS)
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CF_KEYWORDS(GRACEFUL, RESTART, WAIT, MAX, FLUSH, AS, PERIOD, FILENAME)
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CF_ENUM(T_ENUM_RTS, RTS_, DUMMY, STATIC, INHERIT, DEVICE, STATIC_DEVICE, REDIRECT,
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RIP, OSPF, OSPF_IA, OSPF_EXT1, OSPF_EXT2, BGP, PIPE)
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@ -80,6 +81,7 @@ CF_ENUM(T_ENUM_ROA, ROA_, UNKNOWN, VALID, INVALID)
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%type <i> proto_start echo_mask echo_size debug_mask debug_list debug_flag mrtdump_mask mrtdump_list mrtdump_flag export_mode roa_mode limit_action tab_sorted tos
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%type <ps> proto_patt proto_patt2
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%type <g> limit_spec
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%type <t> mrtdump_table_config_table_option
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CF_GRAMMAR
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@ -87,7 +89,7 @@ CF_GRAMMAR
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CF_ADDTO(conf, rtrid)
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rtrid:
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rtrid:
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ROUTER ID idval ';' { new_config->router_id = $3; }
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| ROUTER ID FROM iface_patt ';' { new_config->router_id_from = this_ipatt; }
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;
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@ -114,7 +116,7 @@ listen_opts:
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| listen_opts listen_opt
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;
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listen_opt:
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listen_opt:
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ADDRESS ipa { new_config->listen_bgp_addr = $2; }
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| PORT expr { new_config->listen_bgp_port = $2; }
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| V6ONLY { new_config->listen_bgp_flags = 0; }
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@ -280,7 +282,7 @@ iface_negate:
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;
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iface_patt_node:
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iface_patt_node_init iface_negate iface_patt_node_body
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iface_patt_node_init iface_negate iface_patt_node_body
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;
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@ -358,7 +360,7 @@ debug_flag:
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| PACKETS { $$ = D_PACKETS; }
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;
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/* MRTDump flags */
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/* MRTDump Protocol flags */
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mrtdump_mask:
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ALL { $$ = ~0; }
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@ -376,6 +378,50 @@ mrtdump_flag:
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| MESSAGES { $$ = MD_MESSAGES; }
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;
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/* MRT Table Dump */
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mrtdump_table_config_init:
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{
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this_mrt_table_config = mrt_table_new_config();
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}
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;
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mrtdump_table_config:
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'{' mrtdump_table_config_init mrtdump_table_config_list '}'
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| mrtdump_table_config_init ';'
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;
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mrtdump_table_filter_option:
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where_filter {
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if (this_mrt_table_config->c.filter != FILTER_ACCEPT)
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cf_error("Filter specified twice");
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this_mrt_table_config->c.filter = $1;
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}
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| FILTER filter {
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if (this_mrt_table_config->c.filter != FILTER_ACCEPT)
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cf_error("Filter specified twice");
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this_mrt_table_config->c.filter = $2;
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}
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;
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mrtdump_table_config_list:
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/* empty */
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| mrtdump_table_config_option ';'
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| mrtdump_table_config_list mrtdump_table_config_option ';'
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;
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mrtdump_table_config_table_option:
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rtable { $$ = $1->name; }
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| TEXT { $$ = $1; }
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;
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mrtdump_table_config_option:
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PERIOD expr { this_mrt_table_config->c.period = $2; }
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| FILENAME text { this_mrt_table_config->c.filename_fmt = $2; }
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| TABLE mrtdump_table_config_table_option { this_mrt_table_config->rtable_wildcard_name = $2; }
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| mrtdump_table_filter_option
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;
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/* Password lists */
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password_list:
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@ -383,7 +429,7 @@ password_list:
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| password_item
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;
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password_items:
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password_items:
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/* empty */
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| password_item ';' password_items
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;
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@ -412,7 +458,7 @@ password_item_begin:
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;
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password_item_params:
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/* empty */ { }
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/* empty */ { }
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| GENERATE FROM datetime ';' password_item_params { this_p_item->genfrom = $3; }
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| GENERATE TO datetime ';' password_item_params { this_p_item->gento = $3; }
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| ACCEPT FROM datetime ';' password_item_params { this_p_item->accfrom = $3; }
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@ -588,7 +634,7 @@ sym_args:
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roa_table_arg:
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/* empty */ {
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/* empty */ {
|
||||
if (roa_table_default == NULL)
|
||||
cf_error("No ROA table defined");
|
||||
$$ = roa_table_default;
|
||||
@ -684,6 +730,30 @@ CF_CLI_HELP(MRTDUMP, ..., [[Control protocol debugging via MRTdump files]])
|
||||
CF_CLI(MRTDUMP, proto_patt mrtdump_mask, (<protocol> | <pattern> | all) (all | off | { states | messages }), [[Control protocol debugging via MRTdump format]])
|
||||
{ proto_apply_cmd($2, proto_cmd_mrtdump, 1, $3); } ;
|
||||
|
||||
CF_CLI_HELP(MRTDUMP ROUTES, [table <name>|\"<pattern>\"] [to \"<file>\"] [filter <filter>|where <where filter>] , [[Save MRT Table Dump into a file]])
|
||||
CF_CLI(MRTDUMP ROUTES, mrtdump_table_cli_config, [table <name>|\"<pattern>\"] [to \"<file>\"] [filter <filter>|where <where filter>], [[Save mrt table dump v2 of table name <t> right now]])
|
||||
{
|
||||
this_mrt_table_config->c.cli = this_cli;
|
||||
this_mrt_table_config->c.config = NULL;
|
||||
mrt_table_cli_cmd(this_mrt_table_config);
|
||||
} ;
|
||||
|
||||
mrtdump_table_cli_config:
|
||||
mrtdump_table_config_init mrtdump_table_cli_config_list
|
||||
;
|
||||
|
||||
mrtdump_table_cli_config_list:
|
||||
/* empty */
|
||||
| mrtdump_table_cli_config_option
|
||||
| mrtdump_table_cli_config_list mrtdump_table_cli_config_option
|
||||
;
|
||||
|
||||
mrtdump_table_cli_config_option:
|
||||
TABLE mrtdump_table_config_table_option { this_mrt_table_config->rtable_wildcard_name = $2; }
|
||||
| TO text { this_mrt_table_config->c.filename_fmt = $2; }
|
||||
| mrtdump_table_filter_option
|
||||
;
|
||||
|
||||
CF_CLI(RESTRICT,,,[[Restrict current CLI session to safe commands]])
|
||||
{ this_cli->restricted = 1; cli_msg(16, "Access restricted"); } ;
|
||||
|
||||
|
||||
317
nest/mrtdump.c
317
nest/mrtdump.c
@ -6,154 +6,259 @@
|
||||
* Can be freely distributed and used under the terms of the GNU GPL.
|
||||
*/
|
||||
|
||||
#undef LOCAL_DEBUG
|
||||
|
||||
#include "nest/mrtdump.h"
|
||||
#include "nest/route.h"
|
||||
|
||||
void
|
||||
mrt_msg_init(struct mrt_msg *msg, pool *mem_pool)
|
||||
/*
|
||||
* MRTDump: Table Dump: Base
|
||||
*/
|
||||
|
||||
static void
|
||||
mrt_buffer_reset(struct mrt_buffer *buf)
|
||||
{
|
||||
msg->mem_pool = mem_pool;
|
||||
msg->msg_capacity = MRT_MSG_DEFAULT_CAPACITY;
|
||||
msg->msg_length = 0;
|
||||
msg->msg = mb_alloc(msg->mem_pool, msg->msg_capacity);
|
||||
buf->msg_capacity = MRT_BUFFER_DEFAULT_CAPACITY;
|
||||
buf->msg_length = MRT_HDR_LENGTH; /* Reserved for the main MRT header */
|
||||
}
|
||||
|
||||
void
|
||||
mrt_msg_free(struct mrt_msg *msg)
|
||||
mrt_buffer_alloc(struct mrt_buffer *buf)
|
||||
{
|
||||
mb_free(msg->msg);
|
||||
mrt_buffer_reset(buf);
|
||||
buf->msg = mb_allocz(&root_pool, buf->msg_capacity);
|
||||
}
|
||||
|
||||
void
|
||||
mrt_buffer_free(struct mrt_buffer *buf)
|
||||
{
|
||||
if (buf->msg != NULL)
|
||||
{
|
||||
mb_free(buf->msg);
|
||||
buf->msg = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_buffer_enlarge(struct mrt_buffer *buf, size_t min_required_capacity)
|
||||
{
|
||||
if (min_required_capacity < buf->msg_capacity)
|
||||
{
|
||||
buf->msg_capacity *= 2;
|
||||
if (min_required_capacity > buf->msg_capacity)
|
||||
buf->msg_capacity = min_required_capacity;
|
||||
buf->msg = mb_realloc(buf->msg, buf->msg_capacity);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Return pointer to the actual position in the msg buffer
|
||||
*/
|
||||
static byte *
|
||||
mrt_peer_index_table_get_peer_count(struct mrt_peer_index_table *pit_msg)
|
||||
mrt_buffer_get_cursor(struct mrt_buffer *buf)
|
||||
{
|
||||
struct mrt_msg * msg = pit_msg->msg;
|
||||
uint collector_bgp_id_size = 4;
|
||||
uint name_length_size = 2;
|
||||
uint name_size = pit_msg->name_length;
|
||||
uint peer_count_offset = collector_bgp_id_size + name_length_size + name_size;
|
||||
return &(msg->msg[peer_count_offset]);
|
||||
return &buf->msg[buf->msg_length];
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_grow_msg_buffer(struct mrt_msg * msg, size_t min_required_capacity)
|
||||
mrt_buffer_write_show_debug(struct mrt_buffer *buf, size_t data_size)
|
||||
{
|
||||
msg->msg_capacity *= 2;
|
||||
if (min_required_capacity > msg->msg_capacity)
|
||||
msg->msg_capacity = min_required_capacity;
|
||||
msg->msg = mb_realloc(msg->msg, msg->msg_capacity);
|
||||
#if defined(LOCAL_DEBUG) || defined(GLOBAL_DEBUG)
|
||||
byte *data = mrt_buffer_get_cursor(buf) - data_size;
|
||||
#endif
|
||||
DBG("(%d) ", data_size);
|
||||
u32 i;
|
||||
for (i = 0; i < data_size; i++)
|
||||
DBG("%02X ", data[i]);
|
||||
DBG("| ");
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_write_to_msg(struct mrt_msg * msg, const void *data, size_t data_size)
|
||||
mrt_buffer_put_raw(struct mrt_buffer *buf, const void *data, size_t data_size)
|
||||
{
|
||||
if (data_size == 0)
|
||||
return;
|
||||
|
||||
u32 i;
|
||||
for (i = 0; i < data_size; i++)
|
||||
debug("%02X ", ((byte*)data)[i]);
|
||||
debug("| ");
|
||||
size_t required_size = data_size + buf->msg_length;
|
||||
mrt_buffer_enlarge(buf, required_size);
|
||||
|
||||
size_t required_size = data_size + msg->msg_length;
|
||||
if (msg->msg_capacity < required_size)
|
||||
mrt_grow_msg_buffer(msg, required_size);
|
||||
memcpy(mrt_buffer_get_cursor(buf), data, data_size);
|
||||
buf->msg_length += data_size;
|
||||
|
||||
memcpy(&msg->msg[msg->msg_length], data, data_size);
|
||||
msg->msg_length += data_size;
|
||||
}
|
||||
#define mrt_write_to_msg_(msg, data) mrt_write_to_msg(msg, &data, sizeof(data))
|
||||
|
||||
void
|
||||
mrt_peer_index_table_init(struct mrt_peer_index_table *pit_msg, u32 collector_bgp_id, const char *name)
|
||||
{
|
||||
struct mrt_msg * msg = pit_msg->msg;
|
||||
pit_msg->peer_count = 0;
|
||||
pit_msg->name_length = strlen(name);
|
||||
|
||||
mrt_write_to_msg_(msg, collector_bgp_id);
|
||||
mrt_write_to_msg_(msg, pit_msg->name_length);
|
||||
mrt_write_to_msg(msg, name, pit_msg->name_length);
|
||||
mrt_write_to_msg_(msg, pit_msg->peer_count);
|
||||
debug("\n");
|
||||
mrt_buffer_write_show_debug(buf, data_size);
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_peer_index_table_inc_peer_count(struct mrt_peer_index_table *pit_msg)
|
||||
mrt_buffer_put_ipa(struct mrt_buffer *buf, ip_addr addr, size_t write_size)
|
||||
{
|
||||
pit_msg->peer_count++;
|
||||
byte *peer_count = mrt_peer_index_table_get_peer_count(pit_msg);
|
||||
put_u16(peer_count, pit_msg->peer_count);
|
||||
ip_addr addr_network_formatted = ipa_hton(addr);
|
||||
mrt_buffer_put_raw(buf, &addr_network_formatted, write_size);
|
||||
}
|
||||
|
||||
/*
|
||||
* The data will be transformed (put_u16(), put_u32(), ...) to the network format before writing
|
||||
*/
|
||||
static void
|
||||
mrt_buffer_put_var(struct mrt_buffer *buf, const void *data, size_t data_size)
|
||||
{
|
||||
if (data_size == 0)
|
||||
return;
|
||||
|
||||
byte *actual_position;
|
||||
|
||||
size_t required_size = data_size + buf->msg_length;
|
||||
mrt_buffer_enlarge(buf, required_size);
|
||||
|
||||
switch (data_size)
|
||||
{
|
||||
case 8:
|
||||
put_u64(mrt_buffer_get_cursor(buf), *(u64*)data);
|
||||
break;
|
||||
case 4:
|
||||
put_u32(mrt_buffer_get_cursor(buf), *(u32*)data);
|
||||
break;
|
||||
case 2:
|
||||
put_u16(mrt_buffer_get_cursor(buf), *(u16*)data);
|
||||
break;
|
||||
case 1:
|
||||
actual_position = mrt_buffer_get_cursor(buf);
|
||||
*actual_position = *(byte*)data;
|
||||
break;
|
||||
default:
|
||||
log(L_WARN "Unexpected size %zu byte(s) of data. Allowed are 1, 2, 4 or 8 bytes.", data_size);
|
||||
}
|
||||
|
||||
buf->msg_length += data_size;
|
||||
mrt_buffer_write_show_debug(buf, data_size);
|
||||
}
|
||||
#define mrt_buffer_put_var_autosize(msg, data) mrt_buffer_put_var(msg, &data, sizeof(data))
|
||||
|
||||
/*
|
||||
* MRTDump: Table Dump: Peer Index Table
|
||||
*/
|
||||
|
||||
void
|
||||
mrt_peer_index_table_add_peer(struct mrt_peer_index_table *pit_msg, u32 peer_bgp_id, ip_addr *peer_ip_addr, u32 peer_as)
|
||||
mrt_peer_index_table_header(struct mrt_peer_index_table *state, u32 collector_bgp_id, const char *name)
|
||||
{
|
||||
struct mrt_msg * msg = pit_msg->msg;
|
||||
struct mrt_buffer *buf = &state->msg;
|
||||
mrt_buffer_alloc(buf);
|
||||
|
||||
u8 peer_type = PEER_TYPE_AS_32BIT;
|
||||
if (sizeof(*peer_ip_addr) > sizeof(ip4_addr))
|
||||
peer_type |= PEER_TYPE_IPV6;
|
||||
state->peer_count = 0;
|
||||
u16 name_length = 0;
|
||||
if (name != NULL)
|
||||
name_length = strlen(name);
|
||||
|
||||
mrt_write_to_msg_(msg, peer_type);
|
||||
mrt_write_to_msg_(msg, peer_bgp_id);
|
||||
mrt_write_to_msg_(msg, *peer_ip_addr);
|
||||
mrt_write_to_msg_(msg, peer_as);
|
||||
|
||||
mrt_peer_index_table_inc_peer_count(pit_msg);
|
||||
debug("\n");
|
||||
}
|
||||
|
||||
void
|
||||
mrt_rib_table_init(struct mrt_rib_table *rt_msg, u32 sequence_number, u8 prefix_length, ip_addr *prefix)
|
||||
{
|
||||
struct mrt_msg *msg = rt_msg->msg;
|
||||
|
||||
rt_msg->entry_count = 0;
|
||||
|
||||
mrt_write_to_msg_(msg, sequence_number);
|
||||
mrt_write_to_msg_(msg, prefix_length);
|
||||
mrt_write_to_msg_(msg, *prefix);
|
||||
mrt_write_to_msg_(msg, rt_msg->entry_count);
|
||||
debug("\n");
|
||||
}
|
||||
|
||||
static byte *
|
||||
mrt_rib_table_get_entry_count(struct mrt_rib_table *rt_msg)
|
||||
{
|
||||
struct mrt_msg *msg = rt_msg->msg;
|
||||
u32 sequence_number_size = 4;
|
||||
u32 prefix_length_size = 1;
|
||||
|
||||
u32 prefix_size = 4;
|
||||
if (rt_msg->type == RIB_IPV4_UNICAST)
|
||||
prefix_size = 4;
|
||||
else if (rt_msg->type == RIB_IPV6_UNICAST)
|
||||
prefix_size = 16;
|
||||
else
|
||||
bug("mrt_rib_table_get_entry_count: unknown RIB type!");
|
||||
|
||||
u32 offset = sequence_number_size + prefix_length_size + prefix_size;
|
||||
return &msg->msg[offset];
|
||||
mrt_buffer_put_var_autosize(buf, collector_bgp_id);
|
||||
mrt_buffer_put_var_autosize(buf, name_length);
|
||||
mrt_buffer_put_raw(buf, name, name_length);
|
||||
state->peer_count_offset = state->msg.msg_length;
|
||||
mrt_buffer_put_var(buf, &state->peer_count, sizeof(u16));
|
||||
DBG("\n");
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_rib_table_inc_entry_count(struct mrt_rib_table *rt_msg)
|
||||
mrt_peer_index_table_inc_peer_count(struct mrt_peer_index_table *state)
|
||||
{
|
||||
rt_msg->entry_count++;
|
||||
byte *entry_count = mrt_rib_table_get_entry_count(rt_msg);
|
||||
put_u16(entry_count, rt_msg->entry_count);
|
||||
state->peer_count++;
|
||||
byte *peer_count = &state->msg.msg[state->peer_count_offset];
|
||||
put_u16(peer_count, state->peer_count);
|
||||
}
|
||||
|
||||
void
|
||||
mrt_rib_table_add_entry(struct mrt_rib_table *rt_msg, const struct mrt_rib_entry *rib)
|
||||
mrt_peer_index_table_add_peer(struct mrt_peer_index_table *state, u32 peer_bgp_id, u32 peer_as, ip_addr peer_ip_addr)
|
||||
{
|
||||
struct mrt_msg *msg = rt_msg->msg;
|
||||
struct mrt_buffer *msg = &state->msg;
|
||||
|
||||
mrt_write_to_msg_(msg, rib->peer_index);
|
||||
mrt_write_to_msg_(msg, rib->originated_time);
|
||||
mrt_write_to_msg_(msg, rib->attributes_length);
|
||||
mrt_write_to_msg(msg, rib->attributes, rib->attributes_length);
|
||||
u8 peer_type = MRT_PEER_TYPE_32BIT_ASN;
|
||||
if (sizeof(peer_ip_addr) > sizeof(ip4_addr))
|
||||
peer_type |= MRT_PEER_TYPE_IPV6;
|
||||
|
||||
mrt_rib_table_inc_entry_count(rt_msg);
|
||||
debug("\n");
|
||||
mrt_buffer_put_var_autosize(msg, peer_type);
|
||||
mrt_buffer_put_var_autosize(msg, peer_bgp_id);
|
||||
mrt_buffer_put_ipa(msg, peer_ip_addr, sizeof(ip_addr));
|
||||
mrt_buffer_put_var_autosize(msg, peer_as);
|
||||
|
||||
mrt_peer_index_table_inc_peer_count(state);
|
||||
DBG("\n");
|
||||
}
|
||||
|
||||
void
|
||||
mrt_peer_index_table_dump(struct mrt_peer_index_table *state, int file_descriptor)
|
||||
{
|
||||
byte *msg = state->msg.msg;
|
||||
u32 msg_length = state->msg.msg_length;
|
||||
|
||||
mrt_dump_message(file_descriptor, MRT_TABLE_DUMP_V2, MRT_PEER_INDEX_TABLE, msg, msg_length);
|
||||
}
|
||||
|
||||
void
|
||||
bgp_mrt_peer_index_table_free(struct mrt_peer_index_table *state)
|
||||
{
|
||||
mrt_buffer_free(&state->msg);
|
||||
}
|
||||
|
||||
/*
|
||||
* MRTDump: Table Dump: RIB Table
|
||||
*/
|
||||
|
||||
static void
|
||||
mrt_rib_table_reset(struct mrt_rib_table *state)
|
||||
{
|
||||
state->entry_count = 0;
|
||||
state->entry_count_offset = 0;
|
||||
state->subtype = MRT_RIB_IPV4_UNICAST;
|
||||
mrt_buffer_reset(&state->msg);
|
||||
}
|
||||
|
||||
void
|
||||
mrt_rib_table_alloc(struct mrt_rib_table *state)
|
||||
{
|
||||
mrt_buffer_alloc(&state->msg);
|
||||
mrt_rib_table_reset(state);
|
||||
}
|
||||
|
||||
void
|
||||
mrt_rib_table_header(struct mrt_rib_table *state, u32 sequence_number, u8 prefix_length, ip_addr prefix)
|
||||
{
|
||||
mrt_rib_table_reset(state);
|
||||
|
||||
#ifdef IPV6
|
||||
state->subtype = MRT_RIB_IPV6_UNICAST;
|
||||
#else
|
||||
state->subtype = MRT_RIB_IPV4_UNICAST;
|
||||
#endif
|
||||
|
||||
struct mrt_buffer *msg = &state->msg;
|
||||
mrt_buffer_put_var_autosize(msg, sequence_number);
|
||||
mrt_buffer_put_var_autosize(msg, prefix_length);
|
||||
|
||||
#define CEILING(a, b) (((a)+(b)-1) / (b))
|
||||
u32 prefix_bytes = CEILING(prefix_length, 8);
|
||||
mrt_buffer_put_ipa(msg, prefix, prefix_bytes);
|
||||
|
||||
state->entry_count_offset = msg->msg_length;
|
||||
mrt_buffer_put_var_autosize(msg, state->entry_count);
|
||||
DBG("\n");
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_rib_table_inc_entry_count(struct mrt_rib_table *state)
|
||||
{
|
||||
state->entry_count++;
|
||||
byte *entry_count = &state->msg.msg[state->entry_count_offset];
|
||||
put_u16(entry_count, state->entry_count);
|
||||
}
|
||||
|
||||
void
|
||||
mrt_rib_table_add_entry(struct mrt_rib_table *state, const struct mrt_rib_entry *entry)
|
||||
{
|
||||
struct mrt_buffer *msg = &state->msg;
|
||||
|
||||
mrt_buffer_put_var_autosize(msg, entry->peer_index);
|
||||
mrt_buffer_put_var_autosize(msg, entry->originated_time);
|
||||
mrt_buffer_put_var_autosize(msg, entry->attributes_length);
|
||||
mrt_buffer_put_raw(msg, entry->attributes, entry->attributes_length);
|
||||
|
||||
mrt_rib_table_inc_entry_count(state);
|
||||
DBG("\n");
|
||||
}
|
||||
|
||||
114
nest/mrtdump.h
114
nest/mrtdump.h
@ -6,85 +6,101 @@
|
||||
* Can be freely distributed and used under the terms of the GNU GPL.
|
||||
*/
|
||||
|
||||
#ifndef _MRTDUMP_H_
|
||||
#define _MRTDUMP_H_
|
||||
#ifndef _BIRD_MRTDUMP_H_
|
||||
#define _BIRD_MRTDUMP_H_
|
||||
|
||||
#include <limits.h>
|
||||
|
||||
#include "nest/protocol.h"
|
||||
#include "lib/lists.h"
|
||||
#include "nest/route.h"
|
||||
#include "lib/event.h"
|
||||
|
||||
/* MRTDump values */
|
||||
#define MRTDUMP_HDR_LENGTH 12
|
||||
#define PEER_TYPE_AS_32BIT 0b00000010 /* MRT TABLE_DUMP_V2: PEER_INDEX_TABLE: Peer Type: Use 32bit ASN */
|
||||
#define PEER_TYPE_IPV6 0b00000001 /* MRT TABLE_DUMP_V2: PEER_INDEX_TABLE: Peer Type: Use IPv6 IP Address */
|
||||
#define MRT_HDR_LENGTH 12 /* MRT Timestamp + MRT Type + MRT Subtype + MRT Load Length */
|
||||
#define MRT_PEER_TYPE_32BIT_ASN 0b00000010 /* MRT Table Dump: Peer Index Table: Peer Type: Use 32bit ASN */
|
||||
#define MRT_PEER_TYPE_IPV6 0b00000001 /* MRT Table Dump: Peer Index Table: Peer Type: Use IPv6 IP Address */
|
||||
|
||||
#ifdef PATH_MAX
|
||||
#define BIRD_PATH_MAX PATH_MAX
|
||||
#else
|
||||
#define BIRD_PATH_MAX 4096
|
||||
#endif
|
||||
|
||||
/* MRT Types */
|
||||
enum mrt_type
|
||||
{
|
||||
TABLE_DUMP_V2 = 13,
|
||||
BGP4MP = 16,
|
||||
};
|
||||
#define MRT_TABLE_DUMP_V2 13
|
||||
#define MRT_BGP4MP 16
|
||||
|
||||
/* MRT TABLE_DUMP_V2 Sub-Types */
|
||||
enum table_dump_v2_type
|
||||
{
|
||||
PEER_INDEX_TABLE = 1,
|
||||
RIB_IPV4_UNICAST = 2,
|
||||
RIB_IPV4_MULTICAST = 3,
|
||||
RIB_IPV6_UNICAST = 4,
|
||||
RIB_IPV6_MULTICAST = 5,
|
||||
RIB_GENERIC = 6,
|
||||
};
|
||||
/* MRT Table Dump v2 Subtypes */
|
||||
#define MRT_PEER_INDEX_TABLE 1
|
||||
#define MRT_RIB_IPV4_UNICAST 2
|
||||
#define MRT_RIB_IPV4_MULTICAST 3
|
||||
#define MRT_RIB_IPV6_UNICAST 4
|
||||
#define MRT_RIB_IPV6_MULTICAST 5
|
||||
#define MRT_RIB_GENERIC 6
|
||||
|
||||
/* MRT BGP4MP Sub-Types */
|
||||
enum bgp4mp_subtype
|
||||
{
|
||||
BGP4MP_MESSAGE = 1,
|
||||
BGP4MP_MESSAGE_AS4 = 4,
|
||||
BGP4MP_STATE_CHANGE_AS4 = 5,
|
||||
};
|
||||
/* MRT BGP4MP Subtypes */
|
||||
#define MRT_BGP4MP_MESSAGE 1
|
||||
#define MRT_BGP4MP_MESSAGE_AS4 4
|
||||
#define MRT_BGP4MP_STATE_CHANGE_AS4 5
|
||||
|
||||
struct mrt_msg
|
||||
struct mrt_buffer
|
||||
{
|
||||
byte *msg; /* Buffer with final formatted data */
|
||||
size_t msg_length; /* Size of used buffer */
|
||||
size_t msg_capacity; /* Number of allocated bytes in msg */
|
||||
#define MRT_MSG_DEFAULT_CAPACITY 64 /* in bytes */
|
||||
pool *mem_pool;
|
||||
#define MRT_BUFFER_DEFAULT_CAPACITY 64 /* Size in bytes */
|
||||
};
|
||||
|
||||
/* TABLE_DUMP_V2 -> PEER_INDEX_TABLE */
|
||||
struct mrt_peer_index_table
|
||||
{
|
||||
struct mrt_msg *msg;
|
||||
u16 peer_count;
|
||||
u16 name_length;
|
||||
struct mrt_buffer msg;
|
||||
u16 peer_count; /* Datatype u16 should fit with the size 16bit in MRT packet */
|
||||
u32 peer_count_offset;
|
||||
};
|
||||
|
||||
/* TABLE_DUMP_V2 -> RIB_IPV4_UNICAST or RIB_IPV6_UNICAST */
|
||||
struct mrt_rib_table
|
||||
{
|
||||
struct mrt_msg *msg;
|
||||
enum table_dump_v2_type type; /* RIB_IPV4_UNICAST or RIB_IPV6_UNICAST */
|
||||
struct mrt_buffer msg;
|
||||
int subtype; /* RIB_IPV4_UNICAST or RIB_IPV6_UNICAST */
|
||||
u16 entry_count; /* Number of RIB Entries */
|
||||
struct bgp_proto *bgp_proto;
|
||||
u32 entry_count_offset; /* Offset in msg->msg[?] to position where start the entries count */
|
||||
};
|
||||
|
||||
/* TABLE_DUMP_V2 -> RIB Entry */
|
||||
struct mrt_rib_entry
|
||||
{
|
||||
u16 peer_index;
|
||||
u32 originated_time;
|
||||
u16 attributes_length;
|
||||
byte *attributes;
|
||||
byte *attributes; /* encoded BGP attributes */
|
||||
};
|
||||
|
||||
void mrt_msg_init(struct mrt_msg *msg, pool *mem_pool);
|
||||
void mrt_msg_free(struct mrt_msg *msg);
|
||||
void mrt_peer_index_table_init(struct mrt_peer_index_table *pit_msg, u32 collector_bgp_id, const char *name);
|
||||
void mrt_peer_index_table_add_peer(struct mrt_peer_index_table *pit_msg, u32 peer_bgp_id, ip_addr *peer_ip_addr, u32 peer_as);
|
||||
void mrt_rib_table_init(struct mrt_rib_table *rt_msg, u32 sequence_number, u8 prefix_length, ip_addr *prefix);
|
||||
void mrt_rib_table_add_entry(struct mrt_rib_table *rt_msg, const struct mrt_rib_entry *rib);
|
||||
struct mrt_table_dump_ctx {
|
||||
struct rtable *rtable;
|
||||
struct fib_iterator fit;
|
||||
struct mrt_rib_table rib_table;
|
||||
u32 rib_sequence_number;
|
||||
struct rfile *rfile; /* tracking for mrt table dump file */
|
||||
char *file_path; /* full path for mrt table dump file */
|
||||
byte state;
|
||||
#define MRT_STATE_RUNNING 0
|
||||
#define MRT_STATE_COMPLETED 1
|
||||
event *step;
|
||||
struct mrt_table_individual_config config; /* Own special configuration of MRT */
|
||||
};
|
||||
|
||||
void mrt_buffer_alloc(struct mrt_buffer *buf);
|
||||
void mrt_buffer_free(struct mrt_buffer *buf);
|
||||
|
||||
void mrt_peer_index_table_header(struct mrt_peer_index_table *state, u32 collector_bgp_id, const char *name);
|
||||
void mrt_peer_index_table_add_peer(struct mrt_peer_index_table *state, u32 peer_bgp_id, u32 peer_as, ip_addr peer_ip_addr);
|
||||
void mrt_peer_index_table_dump(struct mrt_peer_index_table *state, int file_descriptor);
|
||||
|
||||
void mrt_rib_table_alloc(struct mrt_rib_table *state);
|
||||
void mrt_rib_table_header(struct mrt_rib_table *state, u32 sequence_number, u8 prefix_length, ip_addr prefix);
|
||||
void mrt_rib_table_add_entry(struct mrt_rib_table *state, const struct mrt_rib_entry *entry);
|
||||
|
||||
/* implemented in sysdep */
|
||||
void mrt_dump_message(const struct proto *p, u16 type, u16 subtype, byte *buf, u32 len);
|
||||
void mrt_dump_message_proto(struct proto *p, u16 type, u16 subtype, byte *buf, u32 len);
|
||||
void mrt_dump_message(int file_descriptor, u16 type, u16 subtype, byte *buf, u32 len);
|
||||
|
||||
#endif /* _MRTDUMP_H_ */
|
||||
#endif /* _BIRD_MRTDUMP_H_ */
|
||||
|
||||
@ -9,14 +9,15 @@
|
||||
#include "test/birdtest.h"
|
||||
#include "test/birdtest_support.h" /* REMOVE ME */
|
||||
#include "nest/mrtdump.h"
|
||||
#include "nest/rt-fib.c" /* REMOVE ME */
|
||||
#include "nest/mrtdump.c" /* REMOVE ME */
|
||||
|
||||
static void
|
||||
show_mrt_msg(struct mrt_msg *msg)
|
||||
show_mrt_msg(struct mrt_buffer *msg)
|
||||
{
|
||||
uint i;
|
||||
bt_debug("show_mrt_msg: \n ");
|
||||
for(i = 0; i < msg->msg_length; i++)
|
||||
for (i = 0; i < msg->msg_length; i++)
|
||||
{
|
||||
if (i && (i % 16) == 0)
|
||||
bt_debug("\n ");
|
||||
@ -25,23 +26,27 @@ show_mrt_msg(struct mrt_msg *msg)
|
||||
bt_debug("\n");
|
||||
}
|
||||
|
||||
static void
|
||||
compare(const byte *expected, const byte *data, u32 length)
|
||||
{
|
||||
u32 i;
|
||||
for(i = 0; i < length; i++)
|
||||
bt_assert_msg(expected[i] == data[i], "Different at %d, 0x%02X != 0x%02X", i, expected[i], data[i]);
|
||||
}
|
||||
|
||||
static int
|
||||
t_peer_index_table(void)
|
||||
{
|
||||
resource_init();
|
||||
|
||||
struct mrt_msg msg;
|
||||
mrt_msg_init(&msg, &root_pool);
|
||||
struct mrt_peer_index_table state;
|
||||
|
||||
struct mrt_peer_index_table pit_msg = {
|
||||
.msg = &msg,
|
||||
};
|
||||
u32 collector_bgp_id = 0x12345678;
|
||||
const char *collector_name = "test";
|
||||
mrt_peer_index_table_init(&pit_msg, collector_bgp_id, collector_name);
|
||||
mrt_peer_index_table_header(&state, collector_bgp_id, collector_name);
|
||||
|
||||
u32 i;
|
||||
for(i = 0; i < 50; i++)
|
||||
for (i = 0; i < 5; i++)
|
||||
{
|
||||
ip_addr addr;
|
||||
#ifdef IPV6
|
||||
@ -49,13 +54,36 @@ t_peer_index_table(void)
|
||||
#else
|
||||
ip4_pton("12.34.56.78", &addr);
|
||||
#endif
|
||||
mrt_peer_index_table_add_peer(&pit_msg, i | 0x30303030, &addr, i | 0x08080808);
|
||||
mrt_peer_index_table_add_peer(&state, i | 0x30303030, i | 0x08080808, addr);
|
||||
}
|
||||
|
||||
show_mrt_msg(&msg);
|
||||
show_mrt_msg(&state.msg);
|
||||
|
||||
mrt_msg_free(&msg);
|
||||
const byte expected[] = {
|
||||
/* Reserve for the main MRT Header */
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 12 bytes */
|
||||
/* PEER_INDEX_TABLE Header */
|
||||
0x12, 0x34, 0x56, 0x78, 0x00, 0x04, 0x74, 0x65, 0x73, 0x74, 0x00, 0x05, /* 12 bytes */
|
||||
/* Peer Entries */
|
||||
#ifdef IPV6
|
||||
0x03, 0x30, 0x30, 0x30, 0x30, 0x12, 0x34, 0x56, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xBC, 0xDE, 0xF0, 0x08, 0x08, 0x08, 0x08,
|
||||
0x03, 0x30, 0x30, 0x30, 0x31, 0x12, 0x34, 0x56, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xBC, 0xDE, 0xF0, 0x08, 0x08, 0x08, 0x09,
|
||||
0x03, 0x30, 0x30, 0x30, 0x32, 0x12, 0x34, 0x56, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xBC, 0xDE, 0xF0, 0x08, 0x08, 0x08, 0x0A,
|
||||
0x03, 0x30, 0x30, 0x30, 0x33, 0x12, 0x34, 0x56, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xBC, 0xDE, 0xF0, 0x08, 0x08, 0x08, 0x0B,
|
||||
0x03, 0x30, 0x30, 0x30, 0x34, 0x12, 0x34, 0x56, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9A, 0xBC, 0xDE, 0xF0, 0x08, 0x08, 0x08, 0x0C,
|
||||
#else
|
||||
0x02, 0x30, 0x30, 0x30, 0x30, 0x0C, 0x22, 0x38, 0x4E, 0x08, 0x08, 0x08, 0x08,
|
||||
0x02, 0x30, 0x30, 0x30, 0x31, 0x0C, 0x22, 0x38, 0x4E, 0x08, 0x08, 0x08, 0x09,
|
||||
0x02, 0x30, 0x30, 0x30, 0x32, 0x0C, 0x22, 0x38, 0x4E, 0x08, 0x08, 0x08, 0x0A,
|
||||
0x02, 0x30, 0x30, 0x30, 0x33, 0x0C, 0x22, 0x38, 0x4E, 0x08, 0x08, 0x08, 0x0B,
|
||||
0x02, 0x30, 0x30, 0x30, 0x34, 0x0C, 0x22, 0x38, 0x4E, 0x08, 0x08, 0x08, 0x0C,
|
||||
#endif
|
||||
};
|
||||
|
||||
bt_assert(state.msg.msg_length == sizeof(expected));
|
||||
compare(expected, state.msg.msg, sizeof(expected));
|
||||
|
||||
mrt_buffer_free(&state.msg);
|
||||
return BT_SUCCESS;
|
||||
}
|
||||
|
||||
@ -64,28 +92,20 @@ t_rib_table(void)
|
||||
{
|
||||
resource_init();
|
||||
|
||||
struct mrt_msg msg;
|
||||
mrt_msg_init(&msg, &root_pool);
|
||||
|
||||
struct mrt_rib_table rt_msg = {
|
||||
.bgp_proto = NULL,
|
||||
.msg = &msg,
|
||||
};
|
||||
struct mrt_rib_table state;
|
||||
u32 sequence_number = 0x12345678;
|
||||
u8 prefix_len = 24;
|
||||
ip_addr prefix;
|
||||
#ifdef IPV6
|
||||
rt_msg.type = RIB_IPV6_UNICAST;
|
||||
ip6_pton("1234:5678::9abc:def0", &prefix);
|
||||
#else
|
||||
rt_msg.type = RIB_IPV4_UNICAST;
|
||||
ip4_pton("12.34.56.78", &prefix);
|
||||
#endif
|
||||
mrt_rib_table_init(&rt_msg, sequence_number, prefix_len, &prefix);
|
||||
mrt_rib_table_alloc(&state);
|
||||
mrt_rib_table_header(&state, sequence_number, prefix_len, prefix);
|
||||
|
||||
u32 i;
|
||||
|
||||
for(i = 0; i < 50; i++)
|
||||
for(i = 0; i < 5; i++)
|
||||
{
|
||||
struct mrt_rib_entry entry = {
|
||||
.peer_index = i,
|
||||
@ -93,13 +113,32 @@ t_rib_table(void)
|
||||
.attributes_length = 7,
|
||||
.attributes = "abcdefg",
|
||||
};
|
||||
mrt_rib_table_add_entry(&rt_msg, &entry);
|
||||
mrt_rib_table_add_entry(&state, &entry);
|
||||
}
|
||||
|
||||
show_mrt_msg(&msg);
|
||||
show_mrt_msg(&state.msg);
|
||||
|
||||
mrt_msg_free(&msg);
|
||||
const byte expected[] = {
|
||||
/* Reserve for the main MRT Header */
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
/* AFI/SAFI-Specific RIB Table Header */
|
||||
#ifdef IPV6
|
||||
0x12, 0x34, 0x56, 0x78, 0x18, 0x12, 0x34, 0x56, 0x00, 0x05,
|
||||
#else
|
||||
0x12, 0x34, 0x56, 0x78, 0x18, 0x0C, 0x22, 0x38, 0x00, 0x05,
|
||||
#endif
|
||||
/* RIB Entries */
|
||||
0x00, 0x00, 0x08, 0x08, 0x08, 0x08, 0x00, 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
|
||||
0x00, 0x01, 0x08, 0x08, 0x08, 0x09, 0x00, 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
|
||||
0x00, 0x02, 0x08, 0x08, 0x08, 0x0A, 0x00, 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
|
||||
0x00, 0x03, 0x08, 0x08, 0x08, 0x0B, 0x00, 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
|
||||
0x00, 0x04, 0x08, 0x08, 0x08, 0x0C, 0x00, 0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
|
||||
};
|
||||
|
||||
bt_assert(state.msg.msg_length == sizeof(expected));
|
||||
compare(expected, state.msg.msg, sizeof(expected));
|
||||
|
||||
mrt_buffer_free(&state.msg);
|
||||
return BT_SUCCESS;
|
||||
}
|
||||
|
||||
@ -108,8 +147,8 @@ main(int argc, char *argv[])
|
||||
{
|
||||
bt_init(argc, argv);
|
||||
|
||||
bt_test_suite(t_peer_index_table, "TABLE_DUMP_V2: Peer index table");
|
||||
bt_test_suite(t_rib_table, "TABLE_DUMP_V2: RIB table");
|
||||
bt_test_suite(t_peer_index_table, "MRT Table Dump: Peer index table");
|
||||
bt_test_suite(t_rib_table, "MRT Table Dump: RIB table");
|
||||
|
||||
return bt_end();
|
||||
}
|
||||
|
||||
12
nest/route.h
12
nest/route.h
@ -70,7 +70,7 @@ void *fib_get(struct fib *, ip_addr *, int); /* Find or create new if nonexiste
|
||||
void *fib_route(struct fib *, ip_addr, int); /* Longest-match routing lookup */
|
||||
void fib_delete(struct fib *, void *); /* Remove fib entry */
|
||||
void fib_free(struct fib *); /* Destroy the fib */
|
||||
void fib_check(struct fib *); /* Consistency check for debugging */
|
||||
void fib_check(const struct fib *); /* Consistency check for debugging */
|
||||
|
||||
void fit_init(struct fib_iterator *, const struct fib *); /* Internal functions, don't call */
|
||||
struct fib_node *fit_get(const struct fib *, struct fib_iterator *);
|
||||
@ -122,6 +122,7 @@ struct rtable_config {
|
||||
int gc_max_ops; /* Maximum number of operations before GC is run */
|
||||
int gc_min_time; /* Minimum time between two consecutive GC runs */
|
||||
byte sorted; /* Routes of network are sorted according to rte_better() */
|
||||
list mrt_table_dumps; /* Configured MRT tables dumps (struct mrt_table_individual_config) */
|
||||
};
|
||||
|
||||
typedef struct rtable {
|
||||
@ -607,5 +608,14 @@ void roa_preconfig(struct config *c);
|
||||
void roa_commit(struct config *new, struct config *old);
|
||||
void roa_show(struct roa_show_data *d);
|
||||
|
||||
void mrt_table_dump_init_periodic(struct rtable *tab, list *mrt_table_dumps);
|
||||
struct mrt_table_dump_ctx *mrt_table_dump_cmd(struct mrt_table_individual_config *mrt_cfg);
|
||||
void mrt_table_cli_cmd(struct mrt_table_config *mrt_config);
|
||||
struct mrt_table_config *mrt_table_new_config(void);
|
||||
|
||||
struct mrt_table_dump_ctx;
|
||||
int is_route_good_for_table_dump(struct mrt_table_dump_ctx *state, rte *e);
|
||||
//char *mrt_table_dump_config_get_filename_fmt(struct rtable *rtable);
|
||||
void mrt_table_dump_init_file_descriptor(struct mrt_table_dump_ctx *state);
|
||||
|
||||
#endif
|
||||
|
||||
@ -440,7 +440,7 @@ fit_put(struct fib_iterator *i, struct fib_node *n)
|
||||
* Use when you suspect somebody of corrupting innocent data structures.
|
||||
*/
|
||||
void
|
||||
fib_check(struct fib *f)
|
||||
fib_check(const struct fib *f)
|
||||
{
|
||||
uint i, ec, lo, nulls;
|
||||
|
||||
|
||||
360
nest/rt-table.c
360
nest/rt-table.c
@ -28,6 +28,10 @@
|
||||
* routes in order to conserve memory.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
|
||||
#undef LOCAL_DEBUG
|
||||
|
||||
#include "nest/bird.h"
|
||||
@ -35,6 +39,7 @@
|
||||
#include "nest/protocol.h"
|
||||
#include "nest/cli.h"
|
||||
#include "nest/iface.h"
|
||||
#include "nest/mrtdump.h"
|
||||
#include "lib/resource.h"
|
||||
#include "lib/event.h"
|
||||
#include "lib/string.h"
|
||||
@ -42,6 +47,9 @@
|
||||
#include "filter/filter.h"
|
||||
#include "lib/string.h"
|
||||
#include "lib/alloca.h"
|
||||
#include "lib/unix.h"
|
||||
|
||||
#include "proto/bgp/mrt.h"
|
||||
|
||||
pool *rt_table_pool;
|
||||
|
||||
@ -58,7 +66,8 @@ static void rt_next_hop_update(rtable *tab);
|
||||
static inline int rt_prune_table(rtable *tab);
|
||||
static inline void rt_schedule_gc(rtable *tab);
|
||||
static inline void rt_schedule_prune(rtable *tab);
|
||||
|
||||
static void mrt_table_dump_stop_periodic(struct rtable *tab);
|
||||
static int mrt_table_dump_cmd_step(void *mrt_table_dump_ctx);
|
||||
|
||||
static inline struct ea_list *
|
||||
make_tmp_attrs(struct rte *rt, struct linpool *pool)
|
||||
@ -1487,6 +1496,8 @@ rt_preconfig(struct config *c)
|
||||
|
||||
init_list(&c->tables);
|
||||
c->master_rtc = rt_new_table(s);
|
||||
|
||||
init_list(&c->mrt_table_dumps);
|
||||
}
|
||||
|
||||
|
||||
@ -1653,6 +1664,9 @@ rt_new_table(struct symbol *s)
|
||||
add_tail(&new_config->tables, &c->n);
|
||||
c->gc_max_ops = 1000;
|
||||
c->gc_min_time = 5;
|
||||
|
||||
init_list(&c->mrt_table_dumps);
|
||||
|
||||
return c;
|
||||
}
|
||||
|
||||
@ -1685,6 +1699,7 @@ rt_unlock_table(rtable *r)
|
||||
{
|
||||
struct config *conf = r->deleted;
|
||||
DBG("Deleting routing table %s\n", r->name);
|
||||
|
||||
if (r->hostcache)
|
||||
rt_free_hostcache(r);
|
||||
rem_node(&r->n);
|
||||
@ -1718,6 +1733,7 @@ rt_commit(struct config *new, struct config *old)
|
||||
WALK_LIST(o, old->tables)
|
||||
{
|
||||
rtable *ot = o->table;
|
||||
mrt_table_dump_stop_periodic(ot);
|
||||
if (!ot->deleted)
|
||||
{
|
||||
struct symbol *sym = cf_find_symbol(o->name);
|
||||
@ -1744,6 +1760,7 @@ rt_commit(struct config *new, struct config *old)
|
||||
}
|
||||
|
||||
WALK_LIST(r, new->tables)
|
||||
{
|
||||
if (!r->table)
|
||||
{
|
||||
rtable *t = mb_alloc(rt_table_pool, sizeof(struct rtable));
|
||||
@ -1752,6 +1769,8 @@ rt_commit(struct config *new, struct config *old)
|
||||
add_tail(&routing_tables, &t->n);
|
||||
r->table = t;
|
||||
}
|
||||
mrt_table_dump_init_periodic(r->table, &new->mrt_table_dumps);
|
||||
}
|
||||
DBG("\tdone\n");
|
||||
}
|
||||
|
||||
@ -2412,6 +2431,345 @@ rt_show(struct rt_show_data *d)
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* MRTDump Table Commands
|
||||
*/
|
||||
|
||||
struct mrt_table_config *
|
||||
mrt_table_new_config(void)
|
||||
{
|
||||
struct mrt_table_config *mrt_cfg = cfg_allocz(sizeof(struct mrt_table_config));
|
||||
mrt_cfg->c.period = MRT_TABLE_NOT_CONFIGURED;
|
||||
mrt_cfg->c.filter = FILTER_ACCEPT;
|
||||
mrt_cfg->c.config = new_config;
|
||||
return mrt_cfg;
|
||||
}
|
||||
|
||||
static struct filter *
|
||||
mrt_table_dump_config_get_filter(struct mrt_table_dump_ctx *state)
|
||||
{
|
||||
if (state->config.c.filter != FILTER_ACCEPT)
|
||||
return state->config.c.filter;
|
||||
|
||||
return FILTER_ACCEPT;
|
||||
}
|
||||
|
||||
uint
|
||||
mrt_table_dump_config_get_period(struct mrt_table_individual_config *mrt_cfg)
|
||||
{
|
||||
if (mrt_cfg->c.period && mrt_cfg->c.period != (u32)MRT_TABLE_NOT_CONFIGURED)
|
||||
return mrt_cfg->c.period;
|
||||
|
||||
return MRT_TABLE_DEFAULT_PERIOD;
|
||||
}
|
||||
|
||||
/*
|
||||
* Writing timestamp of the next mrt dump.
|
||||
* Return seconds for wait for next mrt dump from now.
|
||||
*/
|
||||
static uint
|
||||
mrt_table_dump_config_get_next_modular_period(struct mrt_table_individual_config *cfg)
|
||||
{
|
||||
bird_clock_t period = (bird_clock_t)mrt_table_dump_config_get_period(cfg);
|
||||
bird_clock_t timestamp = now;
|
||||
|
||||
if (cfg->next_dump != 0)
|
||||
{
|
||||
cfg->next_dump += period;
|
||||
}
|
||||
else
|
||||
{
|
||||
bird_clock_t time_to_wait = period - (timestamp % period);
|
||||
cfg->next_dump = timestamp + time_to_wait;
|
||||
}
|
||||
|
||||
return (uint)(cfg->next_dump - timestamp);
|
||||
}
|
||||
|
||||
static char *
|
||||
mrt_table_dump_config_get_filename_fmt(struct mrt_table_dump_ctx *state)
|
||||
{
|
||||
if (state->config.c.filename_fmt != NULL)
|
||||
return state->config.c.filename_fmt;
|
||||
|
||||
return MRT_TABLE_DEFAULT_FILENAME_FMT;
|
||||
}
|
||||
|
||||
static const char *
|
||||
mrt_table_dump_config_get_tablename_pattern(const struct mrt_table_config *mrt_config)
|
||||
{
|
||||
const char *table_name_pattern = MRT_TABLE_DEFAULT_TABLENAME_PATTERN;
|
||||
if (mrt_config->rtable_wildcard_name)
|
||||
table_name_pattern = mrt_config->rtable_wildcard_name;
|
||||
return table_name_pattern;
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_table_dump_timer_hook(struct timer *timer)
|
||||
{
|
||||
if (timer->expires)
|
||||
{
|
||||
struct mrt_table_individual_config *cfg = (struct mrt_table_individual_config *) timer->data;
|
||||
mrt_table_dump_cmd(cfg);
|
||||
tm_start(timer, mrt_table_dump_config_get_next_modular_period(cfg));
|
||||
}
|
||||
}
|
||||
|
||||
static struct mrt_table_individual_config *
|
||||
mrt_table_new_individual_config(struct mrt_table_config *mrt_cfg, struct rtable *tab)
|
||||
{
|
||||
struct mrt_table_individual_config *cfg = mb_allocz(rt_table_pool, sizeof(struct mrt_table_individual_config));
|
||||
cfg->c = mrt_cfg->c;
|
||||
cfg->table_cf = tab->config;
|
||||
return cfg;
|
||||
}
|
||||
|
||||
void
|
||||
mrt_table_dump_init_periodic(struct rtable *tab, list *mrt_table_dumps)
|
||||
{
|
||||
struct mrt_table_config *mrt_cfg;
|
||||
|
||||
WALK_LIST(mrt_cfg, *mrt_table_dumps)
|
||||
{
|
||||
if (patmatch(mrt_table_dump_config_get_tablename_pattern(mrt_cfg), tab->name))
|
||||
{
|
||||
struct mrt_table_individual_config *cfg = mrt_table_new_individual_config(mrt_cfg, tab);
|
||||
add_tail(&cfg->table_cf->mrt_table_dumps, &cfg->n);
|
||||
cfg->timer = tm_new_set(rt_table_pool, mrt_table_dump_timer_hook, cfg, 0, (uint)-1);
|
||||
tm_start(cfg->timer, mrt_table_dump_config_get_next_modular_period(cfg));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
mrt_table_dump_cmd_step(void *mrt_table_dump_ctx)
|
||||
{
|
||||
struct mrt_table_dump_ctx *state = mrt_table_dump_ctx;
|
||||
|
||||
bgp_mrt_table_dump_step(state);
|
||||
if (state->state != MRT_STATE_COMPLETED)
|
||||
ev_schedule(state->step);
|
||||
else
|
||||
{
|
||||
rfree(state->step);
|
||||
if (state->config.c.config)
|
||||
config_del_obstacle(state->config.c.config);
|
||||
log(L_INFO "MRT dump of table %s was saved into file \"%s\"", state->rtable->name, state->file_path);
|
||||
if (state->config.c.cli)
|
||||
{
|
||||
cli_printf(state->config.c.cli, 13, "Dump of table %s was saved into file \"%s\"", state->rtable->name, state->file_path);
|
||||
}
|
||||
rt_unlock_table(state->rtable);
|
||||
mb_free(state->file_path);
|
||||
mb_free(state);
|
||||
return 0; /* End of entire mrt dump */
|
||||
}
|
||||
return 1; /* End of part in mrt dump */
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_table_dump_cmd_step_void(void *mrt_table_dump_ctx)
|
||||
{
|
||||
mrt_table_dump_cmd_step(mrt_table_dump_ctx);
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_table_dump_init(struct mrt_table_dump_ctx *state)
|
||||
{
|
||||
struct rtable *tab = state->rtable;
|
||||
|
||||
#ifdef DEBUGGING
|
||||
fib_check(&tab->fib);
|
||||
#endif
|
||||
FIB_ITERATE_INIT(&state->fit, &tab->fib);
|
||||
|
||||
state->state = MRT_STATE_RUNNING;
|
||||
state->rib_sequence_number = 0;
|
||||
mrt_table_dump_init_file_descriptor(state);
|
||||
mrt_rib_table_alloc(&state->rib_table);
|
||||
|
||||
bgp_mrt_peer_index_table_dump(state);
|
||||
}
|
||||
|
||||
struct mrt_table_dump_ctx *
|
||||
mrt_table_dump_cmd(struct mrt_table_individual_config *mrt_cfg)
|
||||
{
|
||||
struct mrt_table_dump_ctx *state = mb_allocz(rt_table_pool, sizeof(struct mrt_table_dump_ctx));
|
||||
|
||||
event *step_ev = ev_new(rt_table_pool);
|
||||
step_ev->hook = mrt_table_dump_cmd_step_void;
|
||||
step_ev->data = state;
|
||||
state->step = step_ev;
|
||||
state->config = *mrt_cfg;
|
||||
state->rtable = state->config.table_cf->table;
|
||||
rt_lock_table(state->rtable);
|
||||
|
||||
if (state->config.c.config)
|
||||
config_add_obstacle(state->config.c.config);
|
||||
|
||||
mrt_table_dump_init(state);
|
||||
if (mrt_table_dump_cmd_step(state) == 0)
|
||||
return NULL;
|
||||
|
||||
return state;
|
||||
}
|
||||
|
||||
int
|
||||
is_route_good_for_table_dump(struct mrt_table_dump_ctx *state, rte *e)
|
||||
{
|
||||
if (e->attrs->src->proto->proto_state != PS_UP)
|
||||
return 0; /* FAIL */
|
||||
|
||||
struct filter *filter = mrt_table_dump_config_get_filter(state);
|
||||
rte *rte = e;
|
||||
struct ea_list *tmp_attrs = make_tmp_attrs(rte, rte_update_pool);
|
||||
|
||||
int filter_result = f_run(filter, &rte, &tmp_attrs, rte_update_pool, REF_COW);
|
||||
|
||||
if (filter_result >= F_REJECT)
|
||||
return 0; /* FAIL */
|
||||
|
||||
return 1; /* OK */
|
||||
}
|
||||
|
||||
/* You must free the result if result is non-NULL. */
|
||||
static char *
|
||||
mrt_str_replace(const char *orig, const char *rep, const char *with)
|
||||
{
|
||||
if (!orig || !rep || !with)
|
||||
return NULL;
|
||||
|
||||
char *result;
|
||||
const char *ins_point;
|
||||
char *tmp;
|
||||
int len_rep;
|
||||
int len_with;
|
||||
int len_front;
|
||||
int num_of_replacements;
|
||||
|
||||
len_rep = strlen(rep);
|
||||
len_with = strlen(with);
|
||||
|
||||
ins_point = orig;
|
||||
for (num_of_replacements = 0; tmp = strstr(ins_point, rep); ++num_of_replacements)
|
||||
ins_point = tmp + len_rep;
|
||||
|
||||
/* first time through the loop, all the variable are set correctly
|
||||
* from here on,
|
||||
* tmp points to the end of the result string
|
||||
* ins points to the next occurrence of rep in orig
|
||||
* orig points to the remainder of orig after "end of rep"
|
||||
*/
|
||||
tmp = result = mb_alloc(&root_pool, strlen(orig) + (len_with - len_rep) * num_of_replacements + 1);
|
||||
|
||||
if (!result)
|
||||
return NULL;
|
||||
|
||||
while (num_of_replacements--)
|
||||
{
|
||||
ins_point = strstr(orig, rep);
|
||||
len_front = ins_point - orig;
|
||||
tmp = strncpy(tmp, orig, len_front) + len_front;
|
||||
tmp = strcpy(tmp, with) + len_with;
|
||||
orig += len_front + len_rep; /* move to next "end of rep" */
|
||||
}
|
||||
strcpy(tmp, orig);
|
||||
return result;
|
||||
}
|
||||
|
||||
static const char *
|
||||
mrt_table_dump_get_realpath(const char *filename)
|
||||
{
|
||||
static char path[BIRD_PATH_MAX];
|
||||
if (realpath(filename, path) != path)
|
||||
{
|
||||
DBG("ERR: realpath(\"%s\") errno %d", filename, errno);
|
||||
return filename;
|
||||
}
|
||||
return path;
|
||||
}
|
||||
|
||||
void
|
||||
mrt_table_dump_init_file_descriptor(struct mrt_table_dump_ctx *state)
|
||||
{
|
||||
struct timeformat timestamp_fmt = {
|
||||
.fmt1 = mrt_table_dump_config_get_filename_fmt(state),
|
||||
};
|
||||
|
||||
char timestamp[TM_DATETIME_BUFFER_SIZE];
|
||||
tm_format_datetime(timestamp, ×tamp_fmt, now);
|
||||
char *tablename = state->config.table_cf->name;
|
||||
char *filename = mrt_str_replace(timestamp, "%f", tablename);
|
||||
|
||||
if (filename)
|
||||
{
|
||||
state->rfile = tracked_fopen(rt_table_pool, filename, "a");
|
||||
|
||||
const char *filename_fullpath = mrt_table_dump_get_realpath(filename);
|
||||
state->file_path = mb_allocz(rt_table_pool, strlen(filename_fullpath)+1);
|
||||
strcpy(state->file_path, filename_fullpath);
|
||||
|
||||
if (!state->rfile)
|
||||
{
|
||||
log(L_WARN "Unable to open file \"%s\" for MRT dump of table %s", state->file_path, tablename);
|
||||
if (state->config.c.cli)
|
||||
{
|
||||
cli_msg(13, "Unable to open file \"%s\" for MRT dump of table %s", state->file_path, tablename);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
log(L_INFO "MRT dump of table %s is saving into file \"%s\"", tablename, state->file_path);
|
||||
if (state->config.c.cli)
|
||||
{
|
||||
cli_msg(13, "Dump of table %s is saving into file \"%s\"", tablename, state->file_path);
|
||||
}
|
||||
}
|
||||
mb_free(filename);
|
||||
}
|
||||
else
|
||||
{
|
||||
log(L_ERR "Parsing MRT dump filename format \"%s\" for table %s failed", timestamp_fmt.fmt1, tablename);
|
||||
if (state->config.c.cli)
|
||||
{
|
||||
cli_msg(13, "Parsing filename format \"%s\" for table %s failed", timestamp_fmt.fmt1, tablename);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
mrt_table_dump_stop_periodic(struct rtable *tab)
|
||||
{
|
||||
struct mrt_table_individual_config *mrt_cfg, *mrt_cfg_next;
|
||||
WALK_LIST_DELSAFE(mrt_cfg, mrt_cfg_next, tab->config->mrt_table_dumps)
|
||||
{
|
||||
mrt_cfg->timer->recurrent = 0;
|
||||
tm_stop(mrt_cfg->timer);
|
||||
rfree(mrt_cfg->timer);
|
||||
rem_node(&mrt_cfg->n);
|
||||
mb_free(mrt_cfg);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
mrt_table_cli_cmd(struct mrt_table_config *mrt_cfg)
|
||||
{
|
||||
struct rtable_config *r;
|
||||
|
||||
WALK_LIST(r, config->tables)
|
||||
{
|
||||
if (patmatch(mrt_table_dump_config_get_tablename_pattern(mrt_cfg), r->table->name))
|
||||
{
|
||||
struct mrt_table_individual_config *cfg = mrt_table_new_individual_config(mrt_cfg, r->table);
|
||||
struct mrt_table_dump_ctx *state = mrt_table_dump_cmd(cfg);
|
||||
if (state && state->state != MRT_STATE_COMPLETED)
|
||||
while (mrt_table_dump_cmd_step(state));
|
||||
mb_free(cfg);
|
||||
}
|
||||
}
|
||||
cli_printf(mrt_cfg->c.cli, 0, "");
|
||||
}
|
||||
|
||||
/*
|
||||
* Documentation for functions declared inline in route.h
|
||||
*/
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
source=bgp.c attrs.c packets.c
|
||||
source=bgp.c attrs.c packets.c mrt.c
|
||||
root-rel=../../
|
||||
dir-name=proto/bgp
|
||||
|
||||
|
||||
@ -75,8 +75,10 @@
|
||||
#include "lib/socket.h"
|
||||
#include "lib/resource.h"
|
||||
#include "lib/string.h"
|
||||
#include "lib/slists.h"
|
||||
|
||||
#include "bgp.h"
|
||||
#include "mrt.h"
|
||||
|
||||
|
||||
struct linpool *bgp_linpool; /* Global temporary pool */
|
||||
@ -1252,6 +1254,7 @@ bgp_init(struct proto_config *C)
|
||||
p->rs_client = c->rs_client;
|
||||
p->rr_client = c->rr_client;
|
||||
p->igp_table = get_igp_table(c);
|
||||
p->mrt_peer_index = 0;
|
||||
|
||||
return P;
|
||||
}
|
||||
|
||||
@ -152,6 +152,7 @@ struct bgp_proto {
|
||||
u8 last_error_class; /* Error class of last error */
|
||||
u32 last_error_code; /* Error code of last error. BGP protocol errors
|
||||
are encoded as (bgp_err_code << 16 | bgp_err_subcode) */
|
||||
u16 mrt_peer_index; /* Used for MRT Table Dump */
|
||||
#ifdef IPV6
|
||||
byte *mp_reach_start, *mp_unreach_start; /* Multiprotocol BGP attribute notes */
|
||||
unsigned mp_reach_len, mp_unreach_len;
|
||||
@ -183,6 +184,7 @@ struct bgp_bucket {
|
||||
#define BGP_MAX_PACKET_LENGTH 4096
|
||||
#define BGP_RX_BUFFER_SIZE 4096
|
||||
#define BGP_TX_BUFFER_SIZE BGP_MAX_PACKET_LENGTH
|
||||
#define BGP_ATTR_BUFFER_SIZE 2048 /* Default buffer size for encoded bgp attributes */
|
||||
|
||||
extern struct linpool *bgp_linpool;
|
||||
|
||||
|
||||
129
proto/bgp/mrt.c
Normal file
129
proto/bgp/mrt.c
Normal file
@ -0,0 +1,129 @@
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <time.h>
|
||||
|
||||
#include "nest/route.h"
|
||||
#include "nest/iface.h"
|
||||
#include "nest/cli.h"
|
||||
#include "lib/socket.h"
|
||||
#include "lib/ip.h"
|
||||
#include "lib/unix.h"
|
||||
#include "lib/krt.h"
|
||||
|
||||
#include "bgp.h"
|
||||
#include "mrt.h"
|
||||
|
||||
/*
|
||||
* MRTDump: Table Dump V2: BGP Specific Part
|
||||
*/
|
||||
|
||||
void
|
||||
bgp_mrt_peer_index_table_dump(struct mrt_table_dump_ctx *state)
|
||||
{
|
||||
struct proto *P;
|
||||
struct mrt_peer_index_table pit;
|
||||
u32 collector_bgp_id = config->router_id;
|
||||
|
||||
mrt_peer_index_table_header(&pit, collector_bgp_id, state->rtable->name);
|
||||
|
||||
mrt_peer_index_table_add_peer(&pit, 0, 0, IPA_NONE); /* at index 0 is fake zeroed-peer for all non-BGP routes */
|
||||
|
||||
WALK_LIST(P, active_proto_list)
|
||||
{
|
||||
if (P->proto_state == PS_UP && P->proto == &proto_bgp)
|
||||
{
|
||||
struct bgp_proto *p = (struct bgp_proto *) P;
|
||||
|
||||
p->mrt_peer_index = pit.peer_count;
|
||||
ip_addr peer_ip = p->cf->remote_ip;
|
||||
mrt_peer_index_table_add_peer(&pit, p->remote_id, p->remote_as, peer_ip);
|
||||
}
|
||||
}
|
||||
|
||||
mrt_peer_index_table_dump(&pit, fileno(state->rfile->f));
|
||||
mrt_buffer_free(&pit.msg);
|
||||
}
|
||||
|
||||
static void
|
||||
bgp_mrt_rib_table_dump(struct mrt_table_dump_ctx *state)
|
||||
{
|
||||
byte *msg = state->rib_table.msg.msg;
|
||||
u32 msg_length = state->rib_table.msg.msg_length;
|
||||
mrt_dump_message(fileno(state->rfile->f), MRT_TABLE_DUMP_V2, state->rib_table.subtype, msg, msg_length);
|
||||
}
|
||||
|
||||
/*
|
||||
* Usage:
|
||||
* struct mrt_table_dump_ctx ctx;
|
||||
* bgp_mrt_table_dump_init(rtable, &ctx);
|
||||
* while (ctx.state != MRT_STATE_COMPLETED)
|
||||
* bgp_mrt_table_dump_step(&ctx);
|
||||
*/
|
||||
void
|
||||
bgp_mrt_table_dump_step(struct mrt_table_dump_ctx *state)
|
||||
{
|
||||
if (state->state == MRT_STATE_COMPLETED)
|
||||
return;
|
||||
|
||||
uint max_work_size = 1;
|
||||
|
||||
FIB_ITERATE_START(&state->rtable->fib, &state->fit, f)
|
||||
{
|
||||
if (!max_work_size--)
|
||||
{
|
||||
FIB_ITERATE_PUT(&state->fit, f);
|
||||
bgp_mrt_rib_table_dump(state);
|
||||
return;
|
||||
}
|
||||
|
||||
net *n = (net *) f;
|
||||
mrt_rib_table_header(&state->rib_table, state->rib_sequence_number++, n->n.pxlen, n->n.prefix);
|
||||
|
||||
rte *e;
|
||||
for (e = n->routes; e; e = e->next)
|
||||
{
|
||||
struct proto *P = e->attrs->src->proto;
|
||||
|
||||
if (!is_route_good_for_table_dump(state, e))
|
||||
continue;
|
||||
|
||||
u16 peer_index = 0; /* have to correspond with fake zeroed-peer in peer index table */
|
||||
uint attributes_length = 0;
|
||||
static byte attributes_buffer[BGP_ATTR_BUFFER_SIZE]; /* static intends to do better performance */
|
||||
|
||||
if (P->proto == &proto_bgp)
|
||||
{
|
||||
struct bgp_proto *p = (struct bgp_proto *) P;
|
||||
|
||||
if (p->mrt_peer_index == 0)
|
||||
{
|
||||
log(L_INFO "%s: MRT Table Dump for %I/%u: Skipping not-indexed BPG RIB (local ASN: %u, remote ASN: %u)", p->p.name, n->n.prefix, n->n.pxlen, p->local_as, p->remote_as);
|
||||
continue;
|
||||
}
|
||||
|
||||
attributes_length = bgp_encode_attrs(p, attributes_buffer, e->attrs->eattrs, BGP_ATTR_BUFFER_SIZE);
|
||||
if (attributes_length == -1)
|
||||
{
|
||||
log(L_WARN "%s: MRT Table Dump for %I/%u: Attribute list too long, let it blank", p->p.name, n->n.prefix, n->n.pxlen);
|
||||
attributes_length = 0;
|
||||
}
|
||||
peer_index = p->mrt_peer_index;
|
||||
}
|
||||
|
||||
struct mrt_rib_entry entry = {
|
||||
.peer_index = peer_index,
|
||||
.originated_time = (u32) bird_clock_to_unix_timestamp(e->lastmod),
|
||||
.attributes_length = attributes_length,
|
||||
.attributes = attributes_buffer
|
||||
};
|
||||
|
||||
mrt_rib_table_add_entry(&state->rib_table, &entry);
|
||||
}
|
||||
} FIB_ITERATE_END(f);
|
||||
|
||||
fit_get(&state->rtable->fib, &state->fit);
|
||||
mrt_buffer_free(&state->rib_table.msg);
|
||||
if (state->rfile)
|
||||
rfree(state->rfile);
|
||||
state->state = MRT_STATE_COMPLETED;
|
||||
}
|
||||
11
proto/bgp/mrt.h
Normal file
11
proto/bgp/mrt.h
Normal file
@ -0,0 +1,11 @@
|
||||
#ifndef _BIRD_BGP_MRT_H_
|
||||
#define _BIRD_BGP_MRT_H_
|
||||
|
||||
#include "nest/route.h"
|
||||
#include "nest/mrtdump.h"
|
||||
#include "bgp.h"
|
||||
|
||||
void bgp_mrt_table_dump_step(struct mrt_table_dump_ctx *state);
|
||||
void bgp_mrt_peer_index_table_dump(struct mrt_table_dump_ctx *state);
|
||||
|
||||
#endif /* _BIRD_BGP_MRT_H_ */
|
||||
@ -85,14 +85,13 @@ static void
|
||||
mrt_dump_bgp_packet(struct bgp_conn *conn, byte *pkt, unsigned len)
|
||||
{
|
||||
byte buf[BGP_MAX_PACKET_LENGTH + 128];
|
||||
byte *bp = buf + MRTDUMP_HDR_LENGTH;
|
||||
byte *bp = buf + MRT_HDR_LENGTH;
|
||||
int as4 = conn->bgp->as4_session;
|
||||
|
||||
bp = mrt_put_bgp4_hdr(bp, conn, as4);
|
||||
memcpy(bp, pkt, len);
|
||||
bp += len;
|
||||
mrt_dump_message(&conn->bgp->p, BGP4MP, as4 ? BGP4MP_MESSAGE_AS4 : BGP4MP_MESSAGE,
|
||||
buf, bp-buf);
|
||||
mrt_dump_message_proto(&conn->bgp->p, MRT_BGP4MP, as4 ? MRT_BGP4MP_MESSAGE_AS4 : MRT_BGP4MP_MESSAGE, buf, bp-buf);
|
||||
}
|
||||
|
||||
static inline u16
|
||||
@ -106,13 +105,13 @@ void
|
||||
mrt_dump_bgp_state_change(struct bgp_conn *conn, unsigned old, unsigned new)
|
||||
{
|
||||
byte buf[128];
|
||||
byte *bp = buf + MRTDUMP_HDR_LENGTH;
|
||||
byte *bp = buf + MRT_HDR_LENGTH;
|
||||
|
||||
bp = mrt_put_bgp4_hdr(bp, conn, 1);
|
||||
put_u16(bp+0, convert_state(old));
|
||||
put_u16(bp+2, convert_state(new));
|
||||
bp += 4;
|
||||
mrt_dump_message(&conn->bgp->p, BGP4MP, BGP4MP_STATE_CHANGE_AS4, buf, bp-buf);
|
||||
mrt_dump_message_proto(&conn->bgp->p, MRT_BGP4MP, MRT_BGP4MP_STATE_CHANGE_AS4, buf, bp-buf);
|
||||
}
|
||||
|
||||
static byte *
|
||||
|
||||
@ -46,7 +46,6 @@
|
||||
*/
|
||||
|
||||
#undef LOCAL_DEBUG
|
||||
#define LOCAL_DEBUG 1
|
||||
|
||||
#include "nest/bird.h"
|
||||
#include "nest/iface.h"
|
||||
|
||||
@ -42,9 +42,9 @@ syslog_name:
|
||||
|
||||
log_file:
|
||||
text {
|
||||
FILE *f = tracked_fopen(new_config->pool, $1, "a");
|
||||
if (!f) cf_error("Unable to open log file `%s': %m", $1);
|
||||
$$ = f;
|
||||
struct rfile *rf = tracked_fopen(new_config->pool, $1, "a");
|
||||
if (!rf) cf_error("Unable to open log file `%s': %m", $1);
|
||||
$$ = rf->f;
|
||||
}
|
||||
| SYSLOG syslog_name { $$ = NULL; new_config->syslog_name = $2; }
|
||||
| STDERR { $$ = stderr; }
|
||||
@ -77,14 +77,14 @@ CF_ADDTO(conf, mrtdump_base)
|
||||
|
||||
mrtdump_base:
|
||||
MRTDUMP PROTOCOLS mrtdump_mask ';' { new_config->proto_default_mrtdump = $3; }
|
||||
| MRTDUMP ROUTES mrtdump_table_config { add_tail(&new_config->mrt_table_dumps, &this_mrt_table_config->n); }
|
||||
| MRTDUMP text ';' {
|
||||
FILE *f = tracked_fopen(new_config->pool, $2, "a");
|
||||
if (!f) cf_error("Unable to open MRTDump file '%s': %m", $2);
|
||||
new_config->mrtdump_file = fileno(f);
|
||||
struct rfile *rf = tracked_fopen(new_config->pool, $2, "a");
|
||||
if (!rf) cf_error("Unable to open MRTDump file '%s': %m", $2);
|
||||
new_config->mrt_proto_file = fileno(rf->f);
|
||||
}
|
||||
;
|
||||
|
||||
|
||||
CF_ADDTO(conf, timeformat_base)
|
||||
|
||||
timeformat_which:
|
||||
|
||||
@ -55,11 +55,6 @@
|
||||
* Tracked Files
|
||||
*/
|
||||
|
||||
struct rfile {
|
||||
resource r;
|
||||
FILE *f;
|
||||
};
|
||||
|
||||
static void
|
||||
rf_free(resource *r)
|
||||
{
|
||||
@ -85,17 +80,17 @@ static struct resclass rf_class = {
|
||||
NULL
|
||||
};
|
||||
|
||||
void *
|
||||
tracked_fopen(pool *p, char *name, char *mode)
|
||||
struct rfile *
|
||||
tracked_fopen(pool *p, const char *name, const char *mode)
|
||||
{
|
||||
FILE *f = fopen(name, mode);
|
||||
|
||||
if (f)
|
||||
{
|
||||
struct rfile *r = ralloc(p, &rf_class);
|
||||
r->f = f;
|
||||
}
|
||||
return f;
|
||||
if (!f)
|
||||
return NULL;
|
||||
|
||||
struct rfile *r = ralloc(p, &rf_class);
|
||||
r->f = f;
|
||||
return r;
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@ -316,14 +316,20 @@ log_init_debug(char *f)
|
||||
}
|
||||
|
||||
void
|
||||
mrt_dump_message(const struct proto *p, u16 type, u16 subtype, byte *buf, u32 len)
|
||||
mrt_dump_message_proto(struct proto *p, u16 type, u16 subtype, byte *buf, u32 len)
|
||||
{
|
||||
mrt_dump_message(p->cf->global->mrt_proto_file, type, subtype, buf, len);
|
||||
}
|
||||
|
||||
void
|
||||
mrt_dump_message(int file_descriptor, u16 type, u16 subtype, byte *buf, u32 len)
|
||||
{
|
||||
/* Prepare header */
|
||||
put_u32(buf+0, now_real);
|
||||
put_u16(buf+4, type);
|
||||
put_u16(buf+6, subtype);
|
||||
put_u32(buf+8, len - MRTDUMP_HDR_LENGTH);
|
||||
put_u32(buf+8, len - MRT_HDR_LENGTH);
|
||||
|
||||
if (p->cf->global->mrtdump_file != -1)
|
||||
write(p->cf->global->mrtdump_file, buf, len);
|
||||
if (file_descriptor >= 0)
|
||||
write(file_descriptor, buf, len);
|
||||
}
|
||||
|
||||
@ -64,6 +64,12 @@ tm_new_set(pool *p, void (*hook)(struct timer *), void *data, unsigned rand, uns
|
||||
return t;
|
||||
}
|
||||
|
||||
static inline bird_clock_t
|
||||
bird_clock_to_unix_timestamp(bird_clock_t bird_clock)
|
||||
{
|
||||
bird_clock_t delta = now - bird_clock;
|
||||
return (now_real - delta);
|
||||
}
|
||||
|
||||
struct timeformat {
|
||||
char *fmt1, *fmt2;
|
||||
|
||||
@ -9,6 +9,7 @@
|
||||
#ifndef _BIRD_UNIX_H_
|
||||
#define _BIRD_UNIX_H_
|
||||
|
||||
#include <stdio.h>
|
||||
#include <sys/socket.h>
|
||||
|
||||
struct pool;
|
||||
@ -103,9 +104,14 @@ void io_init(void);
|
||||
void io_loop(void);
|
||||
void io_log_dump(void);
|
||||
int sk_open_unix(struct birdsock *s, char *name);
|
||||
void *tracked_fopen(struct pool *, char *name, char *mode);
|
||||
void test_old_bird(char *path);
|
||||
|
||||
/* Tracked Files */
|
||||
struct rfile {
|
||||
resource r;
|
||||
FILE *f;
|
||||
};
|
||||
struct rfile *tracked_fopen(struct pool *, const char *name, const char *mode);
|
||||
|
||||
/* krt.c bits */
|
||||
|
||||
|
||||
@ -35,4 +35,10 @@ io_log_event(void *hook, void *data)
|
||||
bt_debug("This is io_log_event mockup. \n");
|
||||
};
|
||||
|
||||
void
|
||||
mrt_dump_message(int file_descriptor, u16 type, u16 subtype, byte *buf, u32 len)
|
||||
{
|
||||
debug("mrt_dump_message: file_descriptor %d, type %02X, subtype %02X, %s (%u) \n", file_descriptor, type, subtype, buf, len);
|
||||
}
|
||||
|
||||
#include "lib/slab.c" /* REMOVE ME */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user