mirror of https://gitea.it/1414codeforge/ubgpsuite
[tools/peerindex] Add PEER INDEX TABLE inspection tool: peerindex
parent
49abfa2154
commit
e60c9bd4f3
@ -0,0 +1,247 @@
|
||||
'\" et
|
||||
.TH PEERINDEX 1 @VERSION@ PEERINDEX "User Commands"
|
||||
.\"
|
||||
.SH NAME
|
||||
@UTILITY@
|
||||
\(em filter and print BGP data within MRT dumps
|
||||
.SH SYNOPSIS
|
||||
.LP
|
||||
.nf
|
||||
@UTILITY@ \fB[\fIOPTIONS\fB]\fR... \fB[\fIFILES\fB]\fR...
|
||||
.fi
|
||||
|
||||
.SH DESCRIPTION
|
||||
The
|
||||
.IR @UTILITY@
|
||||
utility reads each possibly compressed Multithreaded Routing Toolkit
|
||||
(MRT)
|
||||
Routing Information Base
|
||||
(RIB)
|
||||
file specified by
|
||||
.IR FILES ,
|
||||
and extracts information related to PEER INDEX TABLE
|
||||
records.
|
||||
.IR @UTILITY@
|
||||
processes and formats such records according to the options specified by
|
||||
.IR OPTIONS .
|
||||
.IR @UTILITY@
|
||||
prints diagnostics to standard error,
|
||||
it detects and tolerates data corruption as much as possible.
|
||||
If data corruption cannot be tolerated, the entire MRT dump file is dropped,
|
||||
.IR @UTILITY@
|
||||
will then move to the next file in
|
||||
.IR FILES ,
|
||||
if any.
|
||||
.P
|
||||
Such events are always reported with reasonable diagnostic errors.
|
||||
.P
|
||||
See the
|
||||
.IR EXAMPLES
|
||||
section below for usage examples.
|
||||
|
||||
.SH OPTIONS
|
||||
The following options are supported:
|
||||
|
||||
.IP "\fB\-r or \-\-only\-refs\fP" 10
|
||||
By default
|
||||
.IR @UTILITY@
|
||||
writes all PEER INDEX TABLE entries, this option causes
|
||||
.IR @UTILITY@
|
||||
to only print peers that are referenced by RIB entries.
|
||||
|
||||
.IP "\fB\-h or \-\-help\fP" 10
|
||||
Prints a short help message, summarizing
|
||||
.IR @UTILITY@
|
||||
functionality.
|
||||
|
||||
.IP "\fB\-?\fP" 10
|
||||
Equivalent to
|
||||
.BR \-h .
|
||||
|
||||
.SH "LINE ORIENTED OUTPUT"
|
||||
.IR @UTILITY@
|
||||
splits each PEER INDEX TABLE record into multiple lines, every line represents a peer.
|
||||
Note that
|
||||
.IR OPTIONS
|
||||
may cause some peers inside PEER INDEX TABLES to be discarded (See the
|
||||
.IR OPTIONS
|
||||
section for details).
|
||||
|
||||
|
||||
Each peer is formatted as the following `|' separated fields:
|
||||
.RS 4
|
||||
.sp
|
||||
.RS 4
|
||||
.nf
|
||||
|
||||
PEER ENTRY|ASN32BIT
|
||||
.fi
|
||||
.P
|
||||
.RE
|
||||
.P
|
||||
Fields have the following meaning:
|
||||
|
||||
.IP "\fBPEER ENTRY\fP" 4
|
||||
The peer entry inside PEER INDEX TABLE, displayed as `peer\-address peer\-asn'.
|
||||
|
||||
.IP "\fBASN32BIT\fP" 4
|
||||
May be either 1, if the peer AS number was encoded within 32 bits, or 0 otherwise.
|
||||
.P
|
||||
Note that this flag being 0 does not necessarily imply that the peer does not have
|
||||
ASN32BIT capability, it is merely an indicator of how the peer entry was encoded within
|
||||
the PEER INDEX TABLE record (namely, it only used 2 octets to encode its ASN).
|
||||
.P
|
||||
.RE
|
||||
|
||||
Multiple PEER INDEX TABLES are concatenated within the output, meaning that
|
||||
the same peer appearing in multiple PEER INDEX TABLE records may appear twice in
|
||||
.IR @UTILITY@
|
||||
output.
|
||||
|
||||
.SH "EXIT STATUS"
|
||||
The following exit values are returned:
|
||||
.IP "\00" 6
|
||||
All input data was scanned successfully,
|
||||
and data was written to output correctly.
|
||||
.IP >0 6
|
||||
Errors were detected in input data, write error occurred,
|
||||
or an unrecoverable error occurred (such as out of memory errors).
|
||||
|
||||
.SH STDIN
|
||||
The standard input is used only if no
|
||||
.IR FILES
|
||||
arguments are provided, or when any of the specified
|
||||
.IR FILES
|
||||
arguments is `\-' , in which case MRT data is read from standard input at that
|
||||
point, up to an <end\-of\-file>.
|
||||
.P
|
||||
Whenever
|
||||
.IR @UTILITY@
|
||||
reads from standard input, MRT data is assumed to be uncompressed.
|
||||
|
||||
.SH "INPUT FILES"
|
||||
.IR @UTILITY@
|
||||
supports most MRT dump formats as written by the majority of Route Collecting
|
||||
projects (see the
|
||||
.IR STANDARDS
|
||||
section below for additional references).
|
||||
MRT dumps may be provided either in their plain uncompressed form, or
|
||||
as files compressed by
|
||||
.IR gzip (1),
|
||||
.IR bzip2 (1),
|
||||
or
|
||||
.IR xz (1).
|
||||
.IR @UTILITY@
|
||||
performs appropriate decompression on the fly.
|
||||
File extension is used, in a case insensitive way, to discriminate among
|
||||
supported compression formats. If the file extension is not recognized,
|
||||
or there is no extension, then it is assumed to be uncompressed.
|
||||
|
||||
.SH STDOUT
|
||||
The standard output is used to print a human readable text representation of
|
||||
PEER INDEX TABLE contents, nothing else shall be written to the standard output.
|
||||
.IR @UTILITY@
|
||||
may detect and treat as error whenever the standard output is a regular file,
|
||||
and is the same file as any of the
|
||||
.IR FILES
|
||||
arguments.
|
||||
The default output format used by
|
||||
.IR @UTILITY@
|
||||
is documented in the
|
||||
.IR "LINE ORIENTED OUTPUT"
|
||||
section.
|
||||
|
||||
.SH STDERR
|
||||
The standard error is used only for diagnostic messages and error reporting.
|
||||
|
||||
.SH EXAMPLES
|
||||
This section contains some useful examples, demonstrating basic
|
||||
.IR @UTILITY@
|
||||
usage.
|
||||
|
||||
.IP \[bu]
|
||||
The following is the simplest way to invoke
|
||||
.IR @UTILITY@ :
|
||||
.nf
|
||||
\&
|
||||
.in +2m
|
||||
@UTILITY@
|
||||
.in
|
||||
\&
|
||||
.fi
|
||||
It formats and prints all peers inside the uncompressed MRT
|
||||
RIB input data it receives from standard input.
|
||||
|
||||
.IP \[bu]
|
||||
The following command:
|
||||
.nf
|
||||
\&
|
||||
.in +2m
|
||||
@UTILITY@ -r
|
||||
.in
|
||||
\&
|
||||
.fi
|
||||
formats and print only peer entries referenced by at least one RIB entry
|
||||
inside the uncompressed MRT RIB input data coming from standard input.
|
||||
|
||||
.IP \[bu]
|
||||
The following is equivalent to the previous example:
|
||||
.nf
|
||||
\&
|
||||
.in +2m
|
||||
@UTILITY@ -r ./rib.1.bz2
|
||||
.in
|
||||
\&
|
||||
.fi
|
||||
but takes MRT input data from a
|
||||
.IR bzip (1)
|
||||
compressed file.
|
||||
|
||||
.IP \[bu]
|
||||
The following is equivalent to the previous example:
|
||||
.nf
|
||||
\&
|
||||
.in +2m
|
||||
@UTILITY@ -r ./rib.*.gz
|
||||
.in
|
||||
\&
|
||||
.fi
|
||||
but takes MRT input data from multiple
|
||||
.IR gzip (1)
|
||||
compressed files resulting from the glob expansion.
|
||||
Most likely the command output is going to
|
||||
contain data coming from multiple PEER INDEX TABLES,
|
||||
peers may appear more than once.
|
||||
|
||||
.IP \[bu]
|
||||
The following command:
|
||||
.nf
|
||||
\&
|
||||
.in +2m
|
||||
@UTILITY@ ./rib.*.gz
|
||||
.in
|
||||
\&
|
||||
.fi
|
||||
is similar to the previous example, but does not remove
|
||||
unreferenced peer entries from output.
|
||||
|
||||
.SH SEE ALSO
|
||||
.IR bgpgrep (1),
|
||||
.IR awk (1),
|
||||
.IR grep (1)
|
||||
|
||||
.SH STANDARDS
|
||||
The
|
||||
.IR @UTILITY@
|
||||
utility conforms to:
|
||||
.IP \[bu] 2m
|
||||
.IR "RFC 6396" " \-" "Multi\-Threaded Routing Toolkit (MRT) Routing Information Export Format"
|
||||
.IP \[bu] 2m
|
||||
.IR "RFC 8050" " \- " "Multi\-Threaded Routing Toolkit (MRT) Routing Information Export Format with BGP Additional Path Extensions"
|
||||
|
||||
.SH AUTHOR
|
||||
.IR @UTILITY@
|
||||
was written by
|
||||
.UR lcg@\:inventati.\:org
|
||||
Lorenzo Cogotti
|
||||
.UE .
|
||||
@ -0,0 +1,380 @@
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
/**
|
||||
* \file peerindex.c
|
||||
*
|
||||
* `peerindex` main entry point and general command line parsing.
|
||||
*
|
||||
* \copyright The DoubleFourteen Code Forge (C) All Rights Reserved
|
||||
* \author Lorenzo Cogotti
|
||||
*/
|
||||
|
||||
#include "peerindex_local.h"
|
||||
|
||||
#include "bgp/bytebuf.h"
|
||||
#include "cpr/flate.h"
|
||||
#include "cpr/bzip2.h"
|
||||
#include "cpr/xz.h"
|
||||
#include "sys/endian.h"
|
||||
#include "sys/fs.h"
|
||||
#include "sys/con.h"
|
||||
#include "sys/sys.h"
|
||||
#include "argv.h"
|
||||
#include "bufio.h"
|
||||
#include "strlib.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#define BYTEBUFSIZ (256 * 1024)
|
||||
|
||||
typedef enum {
|
||||
ONLY_REFS_FLAG,
|
||||
|
||||
NUM_FLAGS
|
||||
} PeerindexOpt;
|
||||
|
||||
static Optflag options[] = {
|
||||
[ONLY_REFS_FLAG] = {
|
||||
'r', "only-refs", NULL, "Only dump peers referenced by RIBs", ARG_NONE
|
||||
},
|
||||
|
||||
[NUM_FLAGS] = { '\0' }
|
||||
};
|
||||
|
||||
static PeerindexState S;
|
||||
static BGP_FIXBYTEBUF(BYTEBUFSIZ) bgp_msgBuf = { BYTEBUFSIZ };
|
||||
|
||||
static void Peerindex_SetupCommandLine(char *argv0)
|
||||
{
|
||||
Sys_StripPath(argv0, NULL);
|
||||
Sys_StripFileExtension(argv0, NULL);
|
||||
|
||||
com_progName = argv0;
|
||||
com_synopsis = "[OPTIONS...] [FILES...]";
|
||||
com_shortDescr = "MRT TABLE_DUMPV2 Peer Index Table inspection tool";
|
||||
com_longDescr =
|
||||
"Reads MRT dumps in various formats, and inspects the\n"
|
||||
"MRT TABLE_DUMPV2 peer index table, and prints it to stdout.\n"
|
||||
"If - is found inside FILES, then input is read from stdin.\n"
|
||||
"If no FILES arguments are provided, then input\n"
|
||||
"is implicitly expected from stdin.\n"
|
||||
"Any diagnostic message is logged to stderr.";
|
||||
}
|
||||
|
||||
static void Peerindex_Warning(const char *fmt, ...)
|
||||
{
|
||||
va_list va;
|
||||
|
||||
Sys_Print(STDERR, com_progName);
|
||||
Sys_Print(STDERR, ": ");
|
||||
if (S.filename) {
|
||||
Sys_Print(STDERR, S.filename);
|
||||
Sys_Print(STDERR, ": ");
|
||||
}
|
||||
|
||||
Sys_Print(STDERR, "WARNING: ");
|
||||
|
||||
va_start(va, fmt);
|
||||
Sys_VPrintf(STDERR, fmt, va);
|
||||
va_end(va);
|
||||
|
||||
Sys_Print(STDERR, "\n");
|
||||
}
|
||||
|
||||
void Peerindex_DropRecord(const char *fmt, ...)
|
||||
{
|
||||
va_list va;
|
||||
|
||||
Sys_Print(STDERR, com_progName);
|
||||
Sys_Print(STDERR, ": ");
|
||||
|
||||
assert(S.filename);
|
||||
Sys_Print(STDERR, S.filename);
|
||||
Sys_Print(STDERR, ": ");
|
||||
|
||||
va_start(va, fmt);
|
||||
Sys_VPrintf(STDERR, fmt, va);
|
||||
va_end(va);
|
||||
|
||||
Sys_Print(STDERR, "\n");
|
||||
S.nerrors++;
|
||||
|
||||
// If we're dropping a record we have to kill S.rec
|
||||
Bgp_ClearMrt(&S.rec);
|
||||
|
||||
// ...but don't drop PEER_INDEX_TABLE
|
||||
|
||||
longjmp(S.dropRecordFrame, 1);
|
||||
}
|
||||
|
||||
void Peerindex_DropFile(const char *fmt, ...)
|
||||
{
|
||||
va_list va;
|
||||
|
||||
Sys_Print(STDERR, com_progName);
|
||||
Sys_Print(STDERR, ": ");
|
||||
|
||||
assert(S.filename);
|
||||
Sys_Print(STDERR, S.filename);
|
||||
Sys_Print(STDERR, ": ");
|
||||
|
||||
va_start(va, fmt);
|
||||
Sys_VPrintf(STDERR, fmt, va);
|
||||
va_end(va);
|
||||
|
||||
Sys_Print(STDERR, "\n");
|
||||
S.nerrors++;
|
||||
|
||||
// Must clear PEER_INDEX_TABLE also, along with S.rec...
|
||||
Bgp_ClearMrt(&S.rec);
|
||||
Bgp_ClearMrt(&S.peerIndex);
|
||||
S.hasPeerIndex = FALSE;
|
||||
|
||||
longjmp(S.dropFileFrame, 1);
|
||||
}
|
||||
|
||||
NOINLINE static void Peerindex_HandleError(BgpRet err, Srcloc *loc, void *obj)
|
||||
{
|
||||
USED(obj);
|
||||
|
||||
// On out of memory we die with an appropriate backtrace
|
||||
if (err == BGPENOMEM) {
|
||||
loc->call_depth++; // include this function itself
|
||||
|
||||
_Sys_OutOfMemory(loc->filename, loc->func, loc->line, loc->call_depth);
|
||||
}
|
||||
// On I/O error we drop the entire file
|
||||
if (err == BGPEIO)
|
||||
Peerindex_DropFile("I/O error while reading MRT dump"); // TODO: better diagnostics
|
||||
|
||||
// Hopefully we are not dealing with a programming error...
|
||||
assert(err != BGPEBADMRTTYPE);
|
||||
assert(BGP_ISMRTERR(err));
|
||||
|
||||
if (err == BGPEBADPEERIDXCNT || err == BGPEBADRIBV2CNT) {
|
||||
// Only warrant a warning
|
||||
Peerindex_Warning("CORRUPT MRT RECORD: %s", Bgp_ErrorString(err));
|
||||
S.nerrors++;
|
||||
return;
|
||||
}
|
||||
|
||||
// Anything else requires a full record drop
|
||||
Peerindex_DropRecord("SKIPPING MRT RECORD: %s", Bgp_ErrorString(err));
|
||||
}
|
||||
|
||||
static void Peerindex_ApplyProgramOptions(void)
|
||||
{
|
||||
if (options[ONLY_REFS_FLAG].flagged)
|
||||
S.peerIndexClearVal = 0;
|
||||
else
|
||||
S.peerIndexClearVal = 0xff; // so we always print the full table
|
||||
}
|
||||
|
||||
static void Peerindex_Init(void)
|
||||
{
|
||||
S.rec.allocp = S.rec.allocp = &bgp_msgBuf;
|
||||
}
|
||||
|
||||
static const StmOps *Peerindex_OpenMrtDump(const char *filename, void **phn)
|
||||
{
|
||||
Fildes fh = Sys_Fopen(filename, FM_READ, FH_SEQ);
|
||||
if (fh == FILDES_BAD)
|
||||
Peerindex_DropFile("Can't open file");
|
||||
|
||||
const char *ext = Sys_GetFileExtension(filename);
|
||||
|
||||
void *hn;
|
||||
const StmOps *ops;
|
||||
|
||||
if (Df_stricmp(ext, ".bz2") == 0) {
|
||||
hn = Bzip2_OpenDecompress(STM_FILDES(fh), Stm_FildesOps, /*opts=*/NULL);
|
||||
ops = Bzip2_StmOps;
|
||||
|
||||
Bzip2Ret err = Bzip2_GetErrStat();
|
||||
if (err)
|
||||
Peerindex_DropFile("Can't read Bz2 archive: %s", Bzip2_ErrorString(err));
|
||||
|
||||
} else if (Df_stricmp(ext, ".gz") == 0 || Df_stricmp(ext, ".z") == 0) {
|
||||
hn = Zlib_InflateOpen(STM_FILDES(fh), Stm_FildesOps, /*opts=*/NULL);
|
||||
ops = Zlib_StmOps;
|
||||
|
||||
ZlibRet err = Zlib_GetErrStat();
|
||||
if (err)
|
||||
Peerindex_DropFile("Can't read Zlib archive: %s", Zlib_ErrorString(err));
|
||||
|
||||
} else if (Df_stricmp(ext, ".xz") == 0) {
|
||||
hn = Xz_OpenDecompress(STM_FILDES(fh), Stm_FildesOps, /*opts=*/NULL);
|
||||
ops = Xz_StmOps;
|
||||
|
||||
XzRet err = Xz_GetErrStat();
|
||||
if (err)
|
||||
Peerindex_DropFile("Can't read LZMA archive: %s", Xz_ErrorString(err));
|
||||
|
||||
} else {
|
||||
// Assume uncompressed file
|
||||
hn = STM_FILDES(fh);
|
||||
ops = Stm_FildesOps;
|
||||
}
|
||||
|
||||
*phn = hn;
|
||||
return ops;
|
||||
}
|
||||
|
||||
static void Peerindex_MarkPeerRefs(void)
|
||||
{
|
||||
Mrtribiterv2 it;
|
||||
Mrtribentv2 *rib;
|
||||
|
||||
Bgp_StartMrtRibEntriesv2(&it, &S.rec);
|
||||
while ((rib = Bgp_NextRibEntryv2(&it)) != NULL) {
|
||||
Uint16 idx = beswap16(rib->peerIndex);
|
||||
if (idx >= S.npeers) {
|
||||
Peerindex_Warning("CORRUPT MRT RECORD: Peer index '%u' is out of range", (unsigned) idx);
|
||||
continue;
|
||||
}
|
||||
|
||||
MARKPEERINDEX(S.peerIndexRefs, idx);
|
||||
}
|
||||
}
|
||||
|
||||
static void Peerindex_DumpPeerIndexTable(void)
|
||||
{
|
||||
char buf[IPV6_STRLEN + 1];
|
||||
Stmbuf sb;
|
||||
|
||||
Ipadr adr;
|
||||
|
||||
Mrtpeeriterv2 it;
|
||||
Mrtpeerentv2 *peer;
|
||||
|
||||
if (!S.hasPeerIndex)
|
||||
return; // NOP
|
||||
|
||||
Uint16 idx = 0;
|
||||
|
||||
Bufio_Init(&sb, STM_CONHN(STDOUT), Stm_ConOps);
|
||||
|
||||
Bgp_StartMrtPeersv2(&it, &S.peerIndex);
|
||||
while ((peer = Bgp_NextMrtPeerv2(&it)) != NULL) {
|
||||
if (ISPEERINDEXREF(S.peerIndexRefs, idx)) {
|
||||
Asn asn = MRT_GETPEERADDR(&adr, peer);
|
||||
char *eptr = Ip_AdrToString(&adr, buf);
|
||||
|
||||
Bufio_Putsn(&sb, buf, eptr - buf);
|
||||
Bufio_Putc(&sb, ' ');
|
||||
Bufio_Putu(&sb, beswap32(ASN(asn)));
|
||||
Bufio_Putc(&sb, '|');
|
||||
Bufio_Putc(&sb, ISASN32BIT(asn) ? '1' : '0');
|
||||
Bufio_Putc(&sb, '\n');
|
||||
}
|
||||
|
||||
idx++;
|
||||
}
|
||||
Bufio_Flush(&sb);
|
||||
}
|
||||
|
||||
static void Peerindex_ProcessMrtDump(const char *filename)
|
||||
{
|
||||
void *hn;
|
||||
const StmOps *ops;
|
||||
|
||||
S.filename = filename; // NOTE: Only function that manipulates this
|
||||
|
||||
if (strcmp(filename, "-") == 0) {
|
||||
hn = STM_FILDES(CON_FILDES(STDIN));
|
||||
ops = Stm_NcFildesOps;
|
||||
} else
|
||||
ops = Peerindex_OpenMrtDump(filename, &hn);
|
||||
|
||||
setjmp(S.dropRecordFrame); // NOTE: The ONLY place where this is set
|
||||
while (Bgp_ReadMrt(&S.rec, hn, ops) == OK) {
|
||||
const Mrthdr *hdr = MRT_HDR(&S.rec);
|
||||
if (hdr->type != MRT_TABLE_DUMPV2)
|
||||
continue; // don't care for anything else
|
||||
|
||||
if (hdr->subtype == TABLE_DUMPV2_PEER_INDEX_TABLE) {
|
||||
// Dump peers seen so far, if any
|
||||
Peerindex_DumpPeerIndexTable();
|
||||
// Clear previous PEER_INDEX_TABLE, if any
|
||||
Bgp_ClearMrt(&S.peerIndex);
|
||||
// Clear reference table...
|
||||
memset(S.peerIndexRefs, S.peerIndexClearVal, sizeof(S.peerIndexRefs));
|
||||
|
||||
//...and update current PEER_INDEX_TABLE
|
||||
size_t npeers;
|
||||
|
||||
MRT_MOVEREC(&S.peerIndex, &S.rec);
|
||||
Bgp_GetMrtPeerIndexPeers(&S.peerIndex, &npeers, /*nbytes=*/NULL);
|
||||
S.npeers = npeers;
|
||||
S.hasPeerIndex = TRUE;
|
||||
continue;
|
||||
}
|
||||
if (!TABLE_DUMPV2_ISRIB(hdr->subtype))
|
||||
continue; // don't care for anything but RIBs
|
||||
|
||||
if (!S.hasPeerIndex) {
|
||||
Peerindex_Warning("SKIPPING");
|
||||
continue;
|
||||
}
|
||||
|
||||
Peerindex_MarkPeerRefs();
|
||||
}
|
||||
|
||||
Peerindex_DumpPeerIndexTable(); // execute the very last dump
|
||||
|
||||
if (ops->Close)
|
||||
ops->Close(hn);
|
||||
|
||||
S.filename = NULL;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
Sys_SetErrFunc(SYS_ERR_ABORT, NULL);
|
||||
#else
|
||||
Sys_SetErrFunc(SYS_ERR_QUIT, NULL);
|
||||
#endif
|
||||
Bgp_SetErrFunc(Peerindex_HandleError, NULL);
|
||||
|
||||
Peerindex_SetupCommandLine(argv[0]);
|
||||
|
||||
int optind = Com_ArgParse(argc, argv, options, /*flags=*/0);
|
||||
if (optind == OPT_HELP)
|
||||
return EXIT_SUCCESS; // only called to get help...
|
||||
if (optind < 0)
|
||||
return EXIT_FAILURE; // can't parse command line
|
||||
|
||||
Peerindex_ApplyProgramOptions();
|
||||
|
||||
Peerindex_Init(); // initialize according to command line
|
||||
|
||||
// Done with options
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
// Move to filtering rules and compile them
|
||||
if (argc == 0) {
|
||||
// If no FILES are provided, read from stdin
|
||||
static const char *const stdinFile[] = { "-" };
|
||||
|
||||
argv = (char **) stdinFile;
|
||||
argc = ARRAY_SIZE(stdinFile);
|
||||
}
|
||||
|
||||
volatile int i = 0;
|
||||
|
||||
setjmp(S.dropFileFrame); // NOTE: The ONLY place where this is set
|
||||
while (i < argc) {
|
||||
Peerindex_ProcessMrtDump(argv[i++]);
|
||||
|
||||
// Don't need PEER_INDEX_TABLE anymore
|
||||
Bgp_ClearMrt(&S.peerIndex);
|
||||
S.hasPeerIndex = FALSE;
|
||||
}
|
||||
|
||||
return (S.nerrors > 0) ? EXIT_FAILURE : EXIT_SUCCESS;
|
||||
}
|
||||
@ -0,0 +1,50 @@
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
/**
|
||||
* \file peeridx_local.h
|
||||
*
|
||||
* `peerindex` private header.
|
||||
*
|
||||
* \copyright The DoubleFourteen Code Forge (C) All Rights Reserved
|
||||
* \author Lorenzo Cogotti
|
||||
*/
|
||||
|
||||
#ifndef DF_PEERINDEX_LOCAL_H_
|
||||
#define DF_PEERINDEX_LOCAL_H_
|
||||
|
||||
#include "bgp/mrt.h"
|
||||
|
||||
#include <setjmp.h>
|
||||
|
||||
#define PEERREFSTABSIZ (0x10000uLL / 64)
|
||||
|
||||
typedef Uint64 PeerRefsTab[PEERREFSTABSIZ];
|
||||
|
||||
FORCE_INLINE void MARKPEERINDEX(PeerRefsTab tab, Uint16 idx)
|
||||
{
|
||||
tab[idx >> 6] |= (1uLL << (idx & 0x3f));
|
||||
}
|
||||
|
||||
FORCE_INLINE Boolean ISPEERINDEXREF(const PeerRefsTab tab, Uint16 idx)
|
||||
{
|
||||
return (tab[idx >> 6] & (1uLL << (idx & 0x3f))) != 0;
|
||||
}
|
||||
|
||||
typedef struct {
|
||||
const char *filename; // current file being processed
|
||||
|
||||
// Miscellaneous global flags and data
|
||||
Boolean8 hasPeerIndex;
|
||||
Uint8 peerIndexClearVal;
|
||||
Uint16 npeers;
|
||||
PeerRefsTab peerIndexRefs;
|
||||
Mrtrecord peerIndex;
|
||||
Mrtrecord rec;
|
||||
|
||||
// Error tracking and management
|
||||
jmp_buf dropRecordFrame; // used by `Peerindex_DropRecord()`
|
||||
jmp_buf dropFileFrame; // used by `Peerindex_DropFile()`
|
||||
int nerrors; // for `exit()` status
|
||||
} PeerindexState;
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue