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Add "human" option to print IPv4/IPv6 flows in human-readable format.

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Show IPv4/IPv6 header IFF there are some flows following.
Wrap some long lines.

Sponsored by Yandex LLC

Reviewed by:     glebius (previous version)
Approved by:     ae(mentor)
MFC after:       1 week
This commit is contained in:
Alexander V. Chernikov 2012-06-09 10:10:12 +00:00
parent 4fe83b8159
commit 3097b95a03
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=236808
2 changed files with 34 additions and 13 deletions
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8
usr.sbin/flowctl/flowctl.8
View File

@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd July 5, 2011
.Dd June 8, 2012
.Dt FLOWCTL 8
.Os
.Sh NAME
@ -55,7 +55,7 @@ Currently,
.Nm
supports only one command.
.Bl -tag -width ".Cm show"
.It Cm show Op Cm ipv4|ipv6
.It Cm show Oo Cm ipv4|ipv6 Oc Op Cm human|verbose
This command is the analog of the
.Dq "show ip cache flow"
command of a Cisco router.
@ -69,7 +69,9 @@ It has optional parameter
.Cm verbose ,
which is analog of the
.Dq "show ip cache verbose flow"
command.
command. Additionally,
.Cm human
parameter can be specify to show selected flows in human-readable format.
.El
.Sh EXIT STATUS
.Ex -std

39
usr.sbin/flowctl/flowctl.c
View File

@ -52,19 +52,33 @@ static const char rcs_id[] =
#include <netgraph.h>
#include <netgraph/netflow/ng_netflow.h>
#define CISCO_SH_FLOW_HEADER "SrcIf SrcIPaddress DstIf DstIPaddress Pr SrcP DstP Pkts\n"
#define CISCO_SH_FLOW_HEADER "SrcIf SrcIPaddress " \
"DstIf DstIPaddress Pr SrcP DstP Pkts\n"
#define CISCO_SH_FLOW "%-13s %-15s %-13s %-15s %2u %4.4x %4.4x %6lu\n"
#define CISCO_SH_FLOW6_HEADER "SrcIf SrcIPaddress DstIf DstIPaddress Pr SrcP DstP Pkts\n"
#define CISCO_SH_FLOW6 "%-13s %-30s %-13s %-30s %2u %4.4x %4.4x %6lu\n"
/* human-readable IPv4 header */
#define CISCO_SH_FLOW_HHEADER "SrcIf SrcIPaddress " \
"DstIf DstIPaddress Proto SrcPort DstPort Pkts\n"
#define CISCO_SH_FLOW_H "%-13s %-15s %-13s %-15s %5u %8d %8d %8lu\n"
#define CISCO_SH_VERB_FLOW_HEADER "SrcIf SrcIPaddress DstIf DstIPaddress Pr TOS Flgs Pkts\n" \
#define CISCO_SH_FLOW6_HEADER "SrcIf SrcIPaddress " \
"DstIf DstIPaddress Pr SrcP DstP Pkts\n"
#define CISCO_SH_FLOW6 "%-13s %-30s %-13s %-30s %2u %4.4x %4.4x %6lu\n"
/* Human-readable IPv6 headers */
#define CISCO_SH_FLOW6_HHEADER "SrcIf SrcIPaddress " \
"DstIf DstIPaddress Proto SrcPort DstPort Pkts\n"
#define CISCO_SH_FLOW6_H "%-13s %-36s %-13s %-36s %5u %8d %8d %8lu\n"
#define CISCO_SH_VERB_FLOW_HEADER "SrcIf SrcIPaddress " \
"DstIf DstIPaddress Pr TOS Flgs Pkts\n" \
"Port Msk AS Port Msk AS NextHop B/Pk Active\n"
#define CISCO_SH_VERB_FLOW "%-14s %-15s %-14s %-15s %2u %3x %4x %6lu\n" \
"%4.4x /%-2u %-5u %4.4x /%-2u %-5u %-15s %9u %8u\n\n"
#define CISCO_SH_VERB_FLOW6_HEADER "SrcIf SrcIPaddress DstIf DstIPaddress Pr TOS Flgs Pkts\n" \
#define CISCO_SH_VERB_FLOW6_HEADER "SrcIf SrcIPaddress " \
"DstIf DstIPaddress Pr TOS Flgs Pkts\n" \
"Port Msk AS Port Msk AS NextHop B/Pk Active\n"
#define CISCO_SH_VERB_FLOW6 "%-14s %-30s %-14s %-30s %2u %3x %4x %6lu\n" \
@ -94,7 +108,7 @@ struct ip_ctl_cmd cmds[] = {
{NULL, NULL},
};
int cs;
int cs, human = 0;
char *ng_path;
int
@ -182,6 +196,9 @@ ctl_show(int argc, char **argv)
if (argc > 0 && !strncmp(argv[0], "verbose", strlen(argv[0])))
verbose = 1;
if (argc > 0 && !strncmp(argv[0], "human", strlen(argv[0])))
human = 1;
#ifdef INET
if (ipv4) {
if (verbose)
@ -259,13 +276,14 @@ flow_cache_print(struct ngnf_show_header *resp)
errx(EX_SOFTWARE, "%s: version mismatch: %u",
__func__, resp->version);
printf(CISCO_SH_FLOW_HEADER);
if (resp->nentries > 0)
printf(human ? CISCO_SH_FLOW_HHEADER : CISCO_SH_FLOW_HEADER);
fle = (struct flow_entry_data *)(resp + 1);
for (i = 0; i < resp->nentries; i++, fle++) {
inet_ntop(AF_INET, &fle->r.r_src, src, sizeof(src));
inet_ntop(AF_INET, &fle->r.r_dst, dst, sizeof(dst));
printf(CISCO_SH_FLOW,
printf(human ? CISCO_SH_FLOW_H : CISCO_SH_FLOW,
if_indextoname(fle->fle_i_ifx, src_if),
src,
if_indextoname(fle->fle_o_ifx, dst_if),
@ -292,13 +310,14 @@ flow_cache_print6(struct ngnf_show_header *resp)
errx(EX_SOFTWARE, "%s: version mismatch: %u",
__func__, resp->version);
printf(CISCO_SH_FLOW6_HEADER);
if (resp->nentries > 0)
printf(human ? CISCO_SH_FLOW6_HHEADER : CISCO_SH_FLOW6_HEADER);
fle6 = (struct flow6_entry_data *)(resp + 1);
for (i = 0; i < resp->nentries; i++, fle6++) {
inet_ntop(AF_INET6, &fle6->r.src.r_src6, src6, sizeof(src6));
inet_ntop(AF_INET6, &fle6->r.dst.r_dst6, dst6, sizeof(dst6));
printf(CISCO_SH_FLOW6,
printf(human ? CISCO_SH_FLOW6_H : CISCO_SH_FLOW6,
if_indextoname(fle6->fle_i_ifx, src_if),
src6,
if_indextoname(fle6->fle_o_ifx, dst_if),