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REORG: tcp: move TCP sample fetches from proto_tcp.c to tcp_sample.c

Browse Source 
Let's continue the cleanup and get rid of all sample fetch functions
from proto_tcp.c. They're now moved to tcp_sample.c, just as was done
for ssl before 2.2 release. Nothing has changed beyond this.
This commit is contained in:
Willy Tarreau 2020-08-28 11:37:21 +02:00
parent 478331dd93
commit 8987e7a8c9
3 changed files with 416 additions and 378 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Makefile
View File

@ -810,7 +810,7 @@ OBJS = src/mux_fcgi.o src/mux_h1.o src/mux_h2.o src/backend.o \
src/xxhash.o src/mworker-prog.o src/h1_htx.o src/frontend.o \
src/extcheck.o src/channel.o src/action.o src/mailers.o \
src/tcp_act.o src/proto_sockpair.o src/ebmbtree.o src/thread.o \
src/lb_fwrr.o src/time.o src/regex.o src/lb_fwlc.o \
src/tcp_sample.o src/lb_fwrr.o src/time.o src/regex.o src/lb_fwlc.o \
src/htx.o src/h2.o src/hpack-tbl.o src/lru.o src/wdt.o \
src/lb_map.o src/eb32sctree.o src/ebistree.o src/h1.o \
src/sha1.o src/http.o src/fd.o src/ev_select.o src/chunk.o \

377
src/proto_tcp.c
View File

@ -10,11 +10,6 @@
*
*/
/* this is to have tcp_info defined on systems using musl
* library, such as Alpine Linux
*/
#define _GNU_SOURCE
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
@ -32,12 +27,10 @@
#include <haproxy/api.h>
#include <haproxy/arg.h>
#include <haproxy/channel.h>
#include <haproxy/connection.h>
#include <haproxy/errors.h>
#include <haproxy/fd.h>
#include <haproxy/global.h>
#include <haproxy/http_rules.h>
#include <haproxy/list.h>
#include <haproxy/listener.h>
#include <haproxy/log.h>
@ -46,10 +39,7 @@
#include <haproxy/proto_tcp.h>
#include <haproxy/protocol.h>
#include <haproxy/proxy-t.h>
#include <haproxy/sample.h>
#include <haproxy/server.h>
#include <haproxy/stream-t.h>
#include <haproxy/tcp_rules.h>
#include <haproxy/tools.h>
@ -1206,344 +1196,6 @@ int tcp_pause_listener(struct listener *l)
return 1;
}
/************************************************************************/
/* All supported sample fetch functions must be declared here */
/************************************************************************/
/* fetch the connection's source IPv4/IPv6 address */
static int
smp_fetch_src(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *cli_conn = objt_conn(smp->sess->origin);
if (!cli_conn)
return 0;
if (!conn_get_src(cli_conn))
return 0;
switch (cli_conn->src->ss_family) {
case AF_INET:
smp->data.u.ipv4 = ((struct sockaddr_in *)cli_conn->src)->sin_addr;
smp->data.type = SMP_T_IPV4;
break;
case AF_INET6:
smp->data.u.ipv6 = ((struct sockaddr_in6 *)cli_conn->src)->sin6_addr;
smp->data.type = SMP_T_IPV6;
break;
default:
return 0;
}
smp->flags = 0;
return 1;
}
/* set temp integer to the connection's source port */
static int
smp_fetch_sport(const struct arg *args, struct sample *smp, const char *k, void *private)
{
struct connection *cli_conn = objt_conn(smp->sess->origin);
if (!cli_conn)
return 0;
if (!conn_get_src(cli_conn))
return 0;
smp->data.type = SMP_T_SINT;
if (!(smp->data.u.sint = get_host_port(cli_conn->src)))
return 0;
smp->flags = 0;
return 1;
}
/* fetch the connection's destination IPv4/IPv6 address */
static int
smp_fetch_dst(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *cli_conn = objt_conn(smp->sess->origin);
if (!cli_conn)
return 0;
if (!conn_get_dst(cli_conn))
return 0;
switch (cli_conn->dst->ss_family) {
case AF_INET:
smp->data.u.ipv4 = ((struct sockaddr_in *)cli_conn->dst)->sin_addr;
smp->data.type = SMP_T_IPV4;
break;
case AF_INET6:
smp->data.u.ipv6 = ((struct sockaddr_in6 *)cli_conn->dst)->sin6_addr;
smp->data.type = SMP_T_IPV6;
break;
default:
return 0;
}
smp->flags = 0;
return 1;
}
/* check if the destination address of the front connection is local to the
* system or if it was intercepted.
*/
int smp_fetch_dst_is_local(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *conn = objt_conn(smp->sess->origin);
struct listener *li = smp->sess->listener;
if (!conn)
return 0;
if (!conn_get_dst(conn))
return 0;
smp->data.type = SMP_T_BOOL;
smp->flags = 0;
smp->data.u.sint = addr_is_local(li->netns, conn->dst);
return smp->data.u.sint >= 0;
}
/* check if the source address of the front connection is local to the system
* or not.
*/
int smp_fetch_src_is_local(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *conn = objt_conn(smp->sess->origin);
struct listener *li = smp->sess->listener;
if (!conn)
return 0;
if (!conn_get_src(conn))
return 0;
smp->data.type = SMP_T_BOOL;
smp->flags = 0;
smp->data.u.sint = addr_is_local(li->netns, conn->src);
return smp->data.u.sint >= 0;
}
/* set temp integer to the frontend connexion's destination port */
static int
smp_fetch_dport(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *cli_conn = objt_conn(smp->sess->origin);
if (!cli_conn)
return 0;
if (!conn_get_dst(cli_conn))
return 0;
smp->data.type = SMP_T_SINT;
if (!(smp->data.u.sint = get_host_port(cli_conn->dst)))
return 0;
smp->flags = 0;
return 1;
}
#ifdef TCP_INFO
/* Validates the arguments passed to "fc_*" fetch keywords returning a time
* value. These keywords support an optional string representing the unit of the
* result: "us" for microseconds and "ms" for milliseconds". Returns 0 on error
* and non-zero if OK.
*/
static int val_fc_time_value(struct arg *args, char **err)
{
if (args[0].type == ARGT_STR) {
if (strcmp(args[0].data.str.area, "us") == 0) {
chunk_destroy(&args[0].data.str);
args[0].type = ARGT_SINT;
args[0].data.sint = TIME_UNIT_US;
}
else if (strcmp(args[0].data.str.area, "ms") == 0) {
chunk_destroy(&args[0].data.str);
args[0].type = ARGT_SINT;
args[0].data.sint = TIME_UNIT_MS;
}
else {
memprintf(err, "expects 'us' or 'ms', got '%s'",
args[0].data.str.area);
return 0;
}
}
else {
memprintf(err, "Unexpected arg type");
return 0;
}
return 1;
}
/* Validates the arguments passed to "fc_*" fetch keywords returning a
* counter. These keywords should be used without any keyword, but because of a
* bug in previous versions, an optional string argument may be passed. In such
* case, the argument is ignored and a warning is emitted. Returns 0 on error
* and non-zero if OK.
*/
static int var_fc_counter(struct arg *args, char **err)
{
if (args[0].type != ARGT_STOP) {
ha_warning("no argument supported for 'fc_*' sample expressions returning counters.\n");
if (args[0].type == ARGT_STR)
chunk_destroy(&args[0].data.str);
args[0].type = ARGT_STOP;
}
return 1;
}
/* Returns some tcp_info data if it's available. "dir" must be set to 0 if
* the client connection is required, otherwise it is set to 1. "val" represents
* the required value.
* If the function fails it returns 0, otherwise it returns 1 and "result" is filled.
*/
static inline int get_tcp_info(const struct arg *args, struct sample *smp,
int dir, int val)
{
struct connection *conn;
struct tcp_info info;
socklen_t optlen;
/* strm can be null. */
if (!smp->strm)
return 0;
/* get the object associated with the stream interface.The
* object can be other thing than a connection. For example,
* it be a appctx. */
conn = cs_conn(objt_cs(smp->strm->si[dir].end));
if (!conn)
return 0;
/* The fd may not be available for the tcp_info struct, and the
syscal can fail. */
optlen = sizeof(info);
if (getsockopt(conn->handle.fd, SOL_TCP, TCP_INFO, &info, &optlen) == -1)
return 0;
/* extract the value. */
smp->data.type = SMP_T_SINT;
switch (val) {
case 0: smp->data.u.sint = info.tcpi_rtt; break;
case 1: smp->data.u.sint = info.tcpi_rttvar; break;
#if defined(__linux__)
/* these ones are common to all Linux versions */
case 2: smp->data.u.sint = info.tcpi_unacked; break;
case 3: smp->data.u.sint = info.tcpi_sacked; break;
case 4: smp->data.u.sint = info.tcpi_lost; break;
case 5: smp->data.u.sint = info.tcpi_retrans; break;
case 6: smp->data.u.sint = info.tcpi_fackets; break;
case 7: smp->data.u.sint = info.tcpi_reordering; break;
#elif defined(__FreeBSD__) || defined(__NetBSD__)
/* the ones are found on FreeBSD and NetBSD featuring TCP_INFO */
case 2: smp->data.u.sint = info.__tcpi_unacked; break;
case 3: smp->data.u.sint = info.__tcpi_sacked; break;
case 4: smp->data.u.sint = info.__tcpi_lost; break;
case 5: smp->data.u.sint = info.__tcpi_retrans; break;
case 6: smp->data.u.sint = info.__tcpi_fackets; break;
case 7: smp->data.u.sint = info.__tcpi_reordering; break;
#endif
default: return 0;
}
return 1;
}
/* get the mean rtt of a client connection */
static int
smp_fetch_fc_rtt(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 0))
return 0;
/* By default or if explicitly specified, convert rtt to ms */
if (!args || args[0].type == ARGT_STOP || args[0].data.sint == TIME_UNIT_MS)
smp->data.u.sint = (smp->data.u.sint + 500) / 1000;
return 1;
}
/* get the variance of the mean rtt of a client connection */
static int
smp_fetch_fc_rttvar(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 1))
return 0;
/* By default or if explicitly specified, convert rttvar to ms */
if (!args || args[0].type == ARGT_STOP || args[0].data.sint == TIME_UNIT_MS)
smp->data.u.sint = (smp->data.u.sint + 500) / 1000;
return 1;
}
#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
/* get the unacked counter on a client connection */
static int
smp_fetch_fc_unacked(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 2))
return 0;
return 1;
}
/* get the sacked counter on a client connection */
static int
smp_fetch_fc_sacked(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 3))
return 0;
return 1;
}
/* get the lost counter on a client connection */
static int
smp_fetch_fc_lost(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 4))
return 0;
return 1;
}
/* get the retrans counter on a client connection */
static int
smp_fetch_fc_retrans(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 5))
return 0;
return 1;
}
/* get the fackets counter on a client connection */
static int
smp_fetch_fc_fackets(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 6))
return 0;
return 1;
}
/* get the reordering counter on a client connection */
static int
smp_fetch_fc_reordering(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 7))
return 0;
return 1;
}
#endif // linux || freebsd || netbsd
#endif // TCP_INFO
#ifdef IPV6_V6ONLY
/* parse the "v4v6" bind keyword */
static int bind_parse_v4v6(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
@ -1766,35 +1418,6 @@ static int srv_parse_tcp_ut(char **args, int *cur_arg, struct proxy *px, struct
#endif
/* Note: must not be declared <const> as its list will be overwritten.
* Note: fetches that may return multiple types must be declared as the lowest
* common denominator, the type that can be casted into all other ones. For
* instance v4/v6 must be declared v4.
*/
static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
{ "dst", smp_fetch_dst, 0, NULL, SMP_T_IPV4, SMP_USE_L4CLI },
{ "dst_is_local", smp_fetch_dst_is_local, 0, NULL, SMP_T_BOOL, SMP_USE_L4CLI },
{ "dst_port", smp_fetch_dport, 0, NULL, SMP_T_SINT, SMP_USE_L4CLI },
{ "src", smp_fetch_src, 0, NULL, SMP_T_IPV4, SMP_USE_L4CLI },
{ "src_is_local", smp_fetch_src_is_local, 0, NULL, SMP_T_BOOL, SMP_USE_L4CLI },
{ "src_port", smp_fetch_sport, 0, NULL, SMP_T_SINT, SMP_USE_L4CLI },
#ifdef TCP_INFO
{ "fc_rtt", smp_fetch_fc_rtt, ARG1(0,STR), val_fc_time_value, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_rttvar", smp_fetch_fc_rttvar, ARG1(0,STR), val_fc_time_value, SMP_T_SINT, SMP_USE_L4CLI },
#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
{ "fc_unacked", smp_fetch_fc_unacked, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_sacked", smp_fetch_fc_sacked, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_retrans", smp_fetch_fc_retrans, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_fackets", smp_fetch_fc_fackets, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_lost", smp_fetch_fc_lost, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_reordering", smp_fetch_fc_reordering, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
#endif // linux || freebsd || netbsd
#endif // TCP_INFO
{ /* END */ },
}};
INITCALL1(STG_REGISTER, sample_register_fetches, &sample_fetch_keywords);
/************************************************************************/
/* All supported bind keywords must be declared here. */
/************************************************************************/

415
src/tcp_sample.c Normal file
View File

@ -0,0 +1,415 @@
/*
* AF_INET/AF_INET6 SOCK_STREAM protocol layer (tcp)
*
* Copyright 2000-2013 Willy Tarreau <w@1wt.eu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
/* this is to have tcp_info defined on systems using musl
* library, such as Alpine Linux.
*/
#define _GNU_SOURCE
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/tcp.h>
#include <netinet/in.h>
#include <haproxy/api.h>
#include <haproxy/arg.h>
#include <haproxy/connection.h>
#include <haproxy/global.h>
#include <haproxy/listener-t.h>
#include <haproxy/namespace.h>
#include <haproxy/proxy-t.h>
#include <haproxy/sample.h>
#include <haproxy/tools.h>
/* Fetch the connection's source IPv4/IPv6 address. Note that this is also
* directly called by stick_table.c and as such must remain publicly visible.
*/
static int
smp_fetch_src(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *cli_conn = objt_conn(smp->sess->origin);
if (!cli_conn)
return 0;
if (!conn_get_src(cli_conn))
return 0;
switch (cli_conn->src->ss_family) {
case AF_INET:
smp->data.u.ipv4 = ((struct sockaddr_in *)cli_conn->src)->sin_addr;
smp->data.type = SMP_T_IPV4;
break;
case AF_INET6:
smp->data.u.ipv6 = ((struct sockaddr_in6 *)cli_conn->src)->sin6_addr;
smp->data.type = SMP_T_IPV6;
break;
default:
return 0;
}
smp->flags = 0;
return 1;
}
/* set temp integer to the connection's source port */
static int
smp_fetch_sport(const struct arg *args, struct sample *smp, const char *k, void *private)
{
struct connection *cli_conn = objt_conn(smp->sess->origin);
if (!cli_conn)
return 0;
if (!conn_get_src(cli_conn))
return 0;
smp->data.type = SMP_T_SINT;
if (!(smp->data.u.sint = get_host_port(cli_conn->src)))
return 0;
smp->flags = 0;
return 1;
}
/* fetch the connection's destination IPv4/IPv6 address */
static int
smp_fetch_dst(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *cli_conn = objt_conn(smp->sess->origin);
if (!cli_conn)
return 0;
if (!conn_get_dst(cli_conn))
return 0;
switch (cli_conn->dst->ss_family) {
case AF_INET:
smp->data.u.ipv4 = ((struct sockaddr_in *)cli_conn->dst)->sin_addr;
smp->data.type = SMP_T_IPV4;
break;
case AF_INET6:
smp->data.u.ipv6 = ((struct sockaddr_in6 *)cli_conn->dst)->sin6_addr;
smp->data.type = SMP_T_IPV6;
break;
default:
return 0;
}
smp->flags = 0;
return 1;
}
/* check if the destination address of the front connection is local to the
* system or if it was intercepted.
*/
int smp_fetch_dst_is_local(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *conn = objt_conn(smp->sess->origin);
struct listener *li = smp->sess->listener;
if (!conn)
return 0;
if (!conn_get_dst(conn))
return 0;
smp->data.type = SMP_T_BOOL;
smp->flags = 0;
smp->data.u.sint = addr_is_local(li->netns, conn->dst);
return smp->data.u.sint >= 0;
}
/* check if the source address of the front connection is local to the system
* or not.
*/
int smp_fetch_src_is_local(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *conn = objt_conn(smp->sess->origin);
struct listener *li = smp->sess->listener;
if (!conn)
return 0;
if (!conn_get_src(conn))
return 0;
smp->data.type = SMP_T_BOOL;
smp->flags = 0;
smp->data.u.sint = addr_is_local(li->netns, conn->src);
return smp->data.u.sint >= 0;
}
/* set temp integer to the frontend connexion's destination port */
static int
smp_fetch_dport(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct connection *cli_conn = objt_conn(smp->sess->origin);
if (!cli_conn)
return 0;
if (!conn_get_dst(cli_conn))
return 0;
smp->data.type = SMP_T_SINT;
if (!(smp->data.u.sint = get_host_port(cli_conn->dst)))
return 0;
smp->flags = 0;
return 1;
}
#ifdef TCP_INFO
/* Validates the arguments passed to "fc_*" fetch keywords returning a time
* value. These keywords support an optional string representing the unit of the
* result: "us" for microseconds and "ms" for milliseconds". Returns 0 on error
* and non-zero if OK.
*/
static int val_fc_time_value(struct arg *args, char **err)
{
if (args[0].type == ARGT_STR) {
if (strcmp(args[0].data.str.area, "us") == 0) {
chunk_destroy(&args[0].data.str);
args[0].type = ARGT_SINT;
args[0].data.sint = TIME_UNIT_US;
}
else if (strcmp(args[0].data.str.area, "ms") == 0) {
chunk_destroy(&args[0].data.str);
args[0].type = ARGT_SINT;
args[0].data.sint = TIME_UNIT_MS;
}
else {
memprintf(err, "expects 'us' or 'ms', got '%s'",
args[0].data.str.area);
return 0;
}
}
else {
memprintf(err, "Unexpected arg type");
return 0;
}
return 1;
}
/* Validates the arguments passed to "fc_*" fetch keywords returning a
* counter. These keywords should be used without any keyword, but because of a
* bug in previous versions, an optional string argument may be passed. In such
* case, the argument is ignored and a warning is emitted. Returns 0 on error
* and non-zero if OK.
*/
static int var_fc_counter(struct arg *args, char **err)
{
if (args[0].type != ARGT_STOP) {
ha_warning("no argument supported for 'fc_*' sample expressions returning counters.\n");
if (args[0].type == ARGT_STR)
chunk_destroy(&args[0].data.str);
args[0].type = ARGT_STOP;
}
return 1;
}
/* Returns some tcp_info data if it's available. "dir" must be set to 0 if
* the client connection is required, otherwise it is set to 1. "val" represents
* the required value.
* If the function fails it returns 0, otherwise it returns 1 and "result" is filled.
*/
static inline int get_tcp_info(const struct arg *args, struct sample *smp,
int dir, int val)
{
struct connection *conn;
struct tcp_info info;
socklen_t optlen;
/* strm can be null. */
if (!smp->strm)
return 0;
/* get the object associated with the stream interface.The
* object can be other thing than a connection. For example,
* it be a appctx. */
conn = cs_conn(objt_cs(smp->strm->si[dir].end));
if (!conn)
return 0;
/* The fd may not be available for the tcp_info struct, and the
syscal can fail. */
optlen = sizeof(info);
if (getsockopt(conn->handle.fd, SOL_TCP, TCP_INFO, &info, &optlen) == -1)
return 0;
/* extract the value. */
smp->data.type = SMP_T_SINT;
switch (val) {
case 0: smp->data.u.sint = info.tcpi_rtt; break;
case 1: smp->data.u.sint = info.tcpi_rttvar; break;
#if defined(__linux__)
/* these ones are common to all Linux versions */
case 2: smp->data.u.sint = info.tcpi_unacked; break;
case 3: smp->data.u.sint = info.tcpi_sacked; break;
case 4: smp->data.u.sint = info.tcpi_lost; break;
case 5: smp->data.u.sint = info.tcpi_retrans; break;
case 6: smp->data.u.sint = info.tcpi_fackets; break;
case 7: smp->data.u.sint = info.tcpi_reordering; break;
#elif defined(__FreeBSD__) || defined(__NetBSD__)
/* the ones are found on FreeBSD and NetBSD featuring TCP_INFO */
case 2: smp->data.u.sint = info.__tcpi_unacked; break;
case 3: smp->data.u.sint = info.__tcpi_sacked; break;
case 4: smp->data.u.sint = info.__tcpi_lost; break;
case 5: smp->data.u.sint = info.__tcpi_retrans; break;
case 6: smp->data.u.sint = info.__tcpi_fackets; break;
case 7: smp->data.u.sint = info.__tcpi_reordering; break;
#endif
default: return 0;
}
return 1;
}
/* get the mean rtt of a client connection */
static int
smp_fetch_fc_rtt(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 0))
return 0;
/* By default or if explicitly specified, convert rtt to ms */
if (!args || args[0].type == ARGT_STOP || args[0].data.sint == TIME_UNIT_MS)
smp->data.u.sint = (smp->data.u.sint + 500) / 1000;
return 1;
}
/* get the variance of the mean rtt of a client connection */
static int
smp_fetch_fc_rttvar(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 1))
return 0;
/* By default or if explicitly specified, convert rttvar to ms */
if (!args || args[0].type == ARGT_STOP || args[0].data.sint == TIME_UNIT_MS)
smp->data.u.sint = (smp->data.u.sint + 500) / 1000;
return 1;
}
#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
/* get the unacked counter on a client connection */
static int
smp_fetch_fc_unacked(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 2))
return 0;
return 1;
}
/* get the sacked counter on a client connection */
static int
smp_fetch_fc_sacked(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 3))
return 0;
return 1;
}
/* get the lost counter on a client connection */
static int
smp_fetch_fc_lost(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 4))
return 0;
return 1;
}
/* get the retrans counter on a client connection */
static int
smp_fetch_fc_retrans(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 5))
return 0;
return 1;
}
/* get the fackets counter on a client connection */
static int
smp_fetch_fc_fackets(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 6))
return 0;
return 1;
}
/* get the reordering counter on a client connection */
static int
smp_fetch_fc_reordering(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
if (!get_tcp_info(args, smp, 0, 7))
return 0;
return 1;
}
#endif // linux || freebsd || netbsd
#endif // TCP_INFO
/* Note: must not be declared <const> as its list will be overwritten.
* Note: fetches that may return multiple types must be declared as the lowest
* common denominator, the type that can be casted into all other ones. For
* instance v4/v6 must be declared v4.
*/
static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
{ "dst", smp_fetch_dst, 0, NULL, SMP_T_IPV4, SMP_USE_L4CLI },
{ "dst_is_local", smp_fetch_dst_is_local, 0, NULL, SMP_T_BOOL, SMP_USE_L4CLI },
{ "dst_port", smp_fetch_dport, 0, NULL, SMP_T_SINT, SMP_USE_L4CLI },
{ "src", smp_fetch_src, 0, NULL, SMP_T_IPV4, SMP_USE_L4CLI },
{ "src_is_local", smp_fetch_src_is_local, 0, NULL, SMP_T_BOOL, SMP_USE_L4CLI },
{ "src_port", smp_fetch_sport, 0, NULL, SMP_T_SINT, SMP_USE_L4CLI },
#ifdef TCP_INFO
{ "fc_rtt", smp_fetch_fc_rtt, ARG1(0,STR), val_fc_time_value, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_rttvar", smp_fetch_fc_rttvar, ARG1(0,STR), val_fc_time_value, SMP_T_SINT, SMP_USE_L4CLI },
#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
{ "fc_unacked", smp_fetch_fc_unacked, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_sacked", smp_fetch_fc_sacked, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_retrans", smp_fetch_fc_retrans, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_fackets", smp_fetch_fc_fackets, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_lost", smp_fetch_fc_lost, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
{ "fc_reordering", smp_fetch_fc_reordering, ARG1(0,STR), var_fc_counter, SMP_T_SINT, SMP_USE_L4CLI },
#endif // linux || freebsd || netbsd
#endif // TCP_INFO
{ /* END */ },
}};
INITCALL1(STG_REGISTER, sample_register_fetches, &sample_fetch_keywords);
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/