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ab.c
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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
** This program is based on ZeusBench V1.0 written by Adam Twiss
** which is Copyright (c) 1996 by Zeus Technology Ltd.
** http://web.archive.org/web/20000304112933/http://www.zeustech.net/
**
** This software is provided "as is" and any express or implied warranties,
** including but not limited to, the implied warranties of merchantability and
** fitness for a particular purpose are disclaimed. In no event shall
** Zeus Technology Ltd. be liable for any direct, indirect, incidental, special,
** exemplary, or consequential damaged (including, but not limited to,
** procurement of substitute good or services; loss of use, data, or profits;
** or business interruption) however caused and on theory of liability. Whether
** in contract, strict liability or tort (including negligence or otherwise)
** arising in any way out of the use of this software, even if advised of the
** possibility of such damage.
**
*/
/*
** HISTORY:
** - Originally written by Adam Twiss <[email protected]>, March 1996
** with input from Mike Belshe <[email protected]> and
** Michael Campanella <[email protected]>
** - Enhanced by Dean Gaudet <[email protected]>, November 1997
** - Cleaned up by Ralf S. Engelschall <[email protected]>, March 1998
** - POST and verbosity by Kurt Sussman <[email protected]>, August 1998
** - HTML table output added by David N. Welton <[email protected]>, January 1999
** - Added Cookie, Arbitrary header and auth support. <[email protected]>, April 1999
** Version 1.3d
** - Increased version number - as some of the socket/error handling has
** fundamentally changed - and will give fundamentally different results
** in situations where a server is dropping requests. Therefore you can
** no longer compare results of AB as easily. Hence the inc of the version.
** They should be closer to the truth though. Sander & <[email protected]>, End 2000.
** - Fixed proxy functionality, added median/mean statistics, added gnuplot
** output option, added _experimental/rudimentary_ SSL support. Added
** confidence guestimators and warnings. Sander & <[email protected]>, End 2000
** - Fixed serious int overflow issues which would cause realistic (longer
** than a few minutes) run's to have wrong (but believable) results. Added
** trapping of connection errors which influenced measurements.
** Contributed by Sander Temme, Early 2001
** Version 1.3e
** - Changed timeout behavior during write to work whilst the sockets
** are filling up and apr_write() does writes a few - but not all.
** This will potentially change results. <[email protected]>, April 2001
** Version 2.0.36-dev
** Improvements to concurrent processing:
** - Enabled non-blocking connect()s.
** - Prevent blocking calls to apr_socket_recv() (thereby allowing AB to
** manage its entire set of socket descriptors).
** - Any error returned from apr_socket_recv() that is not EAGAIN or EOF
** is now treated as fatal.
** Contributed by Aaron Bannert, April 24, 2002
**
** Version 2.0.36-2
** Internalized the version string - this string is part
** of the Agent: header and the result output.
**
** Version 2.0.37-dev
** Adopted SSL code by Madhu Mathihalli <[email protected]>
** [PATCH] ab with SSL support Posted Wed, 15 Aug 2001 20:55:06 GMT
** Introduces four 'if (int == value)' tests per non-ssl request.
**
** Version 2.0.40-dev
** Switched to the new abstract pollset API, allowing ab to
** take advantage of future apr_pollset_t scalability improvements.
** Contributed by Brian Pane, August 31, 2002
**
** Version 2.3
** SIGINT now triggers output_results().
** Contributed by colm, March 30, 2006
**/
/* Note: this version string should start with \d+[\d\.]* and be a valid
* string for an HTTP Agent: header when prefixed with 'ApacheBench/'.
* It should reflect the version of AB - and not that of the apache server
* it happens to accompany. And it should be updated or changed whenever
* the results are no longer fundamentally comparable to the results of
* a previous version of ab. Either due to a change in the logic of
* ab - or to due to a change in the distribution it is compiled with
* (such as an APR change in for example blocking).
*/
#define AP_AB_BASEREVISION "2.3"
/*
* BUGS:
*
* - uses strcpy/etc.
* - has various other poor buffer attacks related to the lazy parsing of
* response headers from the server
* - doesn't implement much of HTTP/1.x, only accepts certain forms of
* responses
* - (performance problem) heavy use of strstr shows up top in profile
* only an issue for loopback usage
*/
/* -------------------------------------------------------------------- */
#if 'A' != 0x41
/* Hmmm... This source code isn't being compiled in ASCII.
* In order for data that flows over the network to make
* sense, we need to translate to/from ASCII.
*/
#define NOT_ASCII
#endif
/* affects include files on Solaris */
#define BSD_COMP
#include "apr.h"
#include "apr_signal.h"
#include "apr_strings.h"
#include "apr_network_io.h"
#include "apr_file_io.h"
#include "apr_ring.h"
#include "apr_time.h"
#include "apr_getopt.h"
#include "apr_general.h"
#include "apr_lib.h"
#include "apr_portable.h"
#include "ap_release.h"
#include "apr_poll.h"
#include "apr_atomic.h"
#if APR_HAS_THREADS
#include "apr_thread_proc.h"
#include "apr_thread_mutex.h"
#include "apr_thread_cond.h"
#if APR_HAVE_PTHREAD_H
#include <pthread.h>
#endif
#endif
#define APR_WANT_STRFUNC
#include "apr_want.h"
#include "apr_base64.h"
#ifdef NOT_ASCII
#include "apr_xlate.h"
#endif
#if APR_HAVE_STDIO_H
#include <stdio.h>
#endif
#if APR_HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if APR_HAVE_UNISTD_H
#include <unistd.h> /* for getpid() */
#endif
#if !defined(WIN32) && !defined(NETWARE)
#include "ap_config_auto.h"
#endif
#include <math.h>
#if APR_HAVE_CTYPE_H
#include <ctype.h>
#endif
#if APR_HAVE_LIMITS_H
#include <limits.h>
#endif
#include <assert.h>
#if defined(HAVE_OPENSSL)
#include <openssl/evp.h>
#include <openssl/crypto.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#include <openssl/rand.h>
#include <openssl/opensslv.h>
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
#include <openssl/core_names.h>
#endif
#define USE_SSL
#define SK_NUM(x) sk_X509_num(x)
#define SK_VALUE(x,y) sk_X509_value(x,y)
typedef STACK_OF(X509) X509_STACK_TYPE;
#if defined(_MSC_VER) && !defined(LIBRESSL_VERSION_NUMBER)
/* The following logic ensures we correctly glue FILE* within one CRT used
* by the OpenSSL library build to another CRT used by the ab.exe build.
* This became especially problematic with Visual Studio 2015.
*/
#include <openssl/applink.c>
#endif
#if (OPENSSL_VERSION_NUMBER >= 0x00909000)
#define AB_SSL_METHOD_CONST const
#else
#define AB_SSL_METHOD_CONST
#endif
#if (OPENSSL_VERSION_NUMBER >= 0x0090707f)
#define AB_SSL_CIPHER_CONST const
#else
#define AB_SSL_CIPHER_CONST
#endif
#ifdef SSL_OP_NO_TLSv1_2
#define HAVE_TLSV1_X
#endif
#if !defined(OPENSSL_NO_TLSEXT) && defined(SSL_set_tlsext_host_name)
#define HAVE_TLSEXT
#endif
#if defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2060000f
#define SSL_CTRL_SET_MIN_PROTO_VERSION 123
#define SSL_CTRL_SET_MAX_PROTO_VERSION 124
#define SSL_CTX_set_min_proto_version(ctx, version) \
SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MIN_PROTO_VERSION, version, NULL)
#define SSL_CTX_set_max_proto_version(ctx, version) \
SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
#endif
#if OPENSSL_VERSION_NUMBER >= 0x10100000L
#ifdef TLS1_3_VERSION
#define MAX_SSL_PROTO TLS1_3_VERSION
#else
#define MAX_SSL_PROTO TLS1_2_VERSION
#endif
#ifndef OPENSSL_NO_SSL3
#define MIN_SSL_PROTO SSL3_VERSION
#else
#define MIN_SSL_PROTO TLS1_VERSION
#endif
#endif /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
#endif /* HAVE_OPENSSL */
/* ------------------- DEFINITIONS -------------------------- */
#if defined(APR_INT64_MAX)
#define AB_TIME_MAX APR_INT64_MAX
#elif defined(LLONG_MAX)
#define AB_TIME_MAX LLONG_MAX
#else
#define AB_TIME_MAX APR_INT64_C(0x7fffffffffffffff)
#endif
/* default number of requests on a time limited test */
#define TIMED_REQUESTS (INT_MAX > 50000 ? 50000 : INT_MAX)
#define ROUND_UP(x, y) ((((x) + (y) - 1) / (y)) * (y))
static int test_started = 0,
test_aborted = 0;
/* connection state
* don't add enums or rearrange or otherwise change values without
* visiting set_conn_state()
*/
typedef enum {
STATE_DISCONNECTED = 0,
STATE_CONNECTING, /* TCP connect initiated, but we don't
* know if it worked yet
*/
#ifdef USE_SSL
STATE_HANDSHAKE, /* in the handshake phase */
#endif
STATE_WRITE, /* in the write phase */
STATE_READ, /* in the read phase */
STATE_COUNT
} conn_state_e;
const char *conn_state_str[STATE_COUNT] = {
"DISCONNECTED",
"CONNECTING",
#ifdef USE_SSL
"HANDSHAKE",
#endif
"WRITE",
"READ"
};
#define CBUFFSIZE (8192)
/* forward declare */
struct worker;
struct connection {
APR_RING_ENTRY(connection) delay_list;
struct worker *worker;
apr_pool_t *ctx;
apr_socket_t *aprsock;
apr_pollfd_t pollfd;
int state;
apr_time_t delay;
apr_size_t read; /* amount of bytes read */
apr_size_t bread; /* amount of body read */
apr_size_t rwrite, rwrote; /* keep pointers in what we write - across
* EAGAINs */
apr_size_t length; /* Content-Length value used for keep-alive */
char cbuff[CBUFFSIZE]; /* a buffer to store server response header */
int cbx; /* offset in cbuffer */
int keepalive; /* non-zero if a keep-alive request */
int gotheader; /* non-zero if we have the entire header in
* cbuff */
apr_time_t start, /* Start of connection */
connect, /* Connected, start writing */
endwrite, /* Request written */
beginread, /* First byte of input */
end; /* Connection closed */
apr_size_t keptalive; /* subsequent keepalive requests */
#ifdef USE_SSL
SSL *ssl;
#endif
};
struct data {
apr_time_t starttime; /* start time of connection */
apr_interval_time_t waittime; /* between request and reading response */
apr_interval_time_t ctime; /* time to connect */
apr_interval_time_t time; /* time for connection */
};
struct metrics {
apr_size_t doclen; /* the length the document should be */
apr_int64_t totalread; /* total number of bytes read */
apr_int64_t totalbread; /* totoal amount of entity body read */
apr_int64_t totalposted; /* total number of bytes posted, inc. headers */
apr_int64_t done; /* number of requests we have done */
apr_int64_t doneka; /* number of keep alive connections done */
apr_int64_t good, bad; /* number of good and bad requests */
int epipe; /* number of broken pipe writes */
int err_length; /* requests failed due to response length */
int err_conn; /* requests failed due to connection drop */
int err_recv; /* requests failed due to broken read */
int err_except; /* requests failed due to exception */
int err_response; /* requests with invalid or non-200 response */
int aborted_ka; /* requests aborted during keepalive (no data) */
int concurrent; /* Number of multiple requests actually made */
#ifdef USE_SSL
char ssl_info[128];
#if OPENSSL_VERSION_NUMBER >= 0x10002000L
char ssl_tmp_key[128];
#endif
#endif
};
APR_RING_HEAD(delayed_ring_t, connection);
struct worker {
apr_pool_t *pool;
#if APR_HAS_THREADS
apr_thread_t *thd;
#endif
apr_pollset_t *pollset;
apr_sockaddr_t *destsa;
int slot;
int requests;
int concurrency;
int polls; /* number of connections polled */
int bind_rr; /* next address to bind (round robin) */
int succeeded_once; /* response header received once */
apr_int64_t started; /* number of requests started, so no excess */
struct data *stats;
struct connection *conns;
struct delayed_ring_t delayed_ring;
struct metrics metrics;
int counters[STATE_COUNT][2];
char tmp[1024];
char buffer[CBUFFSIZE]; /* throw-away buffer to read stuff into */
};
/* global metrics (consolidated from workers') */
static struct metrics metrics;
static void consolidate_metrics(void);
#define ap_min(a,b) (((a)<(b))?(a):(b))
#define ap_max(a,b) (((a)>(b))?(a):(b))
#define ap_round_ms(a) ((apr_time_t)((a) + 500)/1000)
#define ap_double_ms(a) ((double)(a)/1000.0)
#define MAX_CONCURRENCY 200000
/* --------------------- GLOBALS ---------------------------- */
int verbosity = 0; /* no verbosity by default */
int recverrok = 0; /* ok to proceed after socket receive errors */
enum {NO_METH = 0, GET, HEAD, PUT, POST, CUSTOM_METHOD} method = NO_METH;
const char *method_str[] = {"bug", "GET", "HEAD", "PUT", "POST", ""};
int send_body = 0; /* non-zero if sending body with request */
int requests = 0; /* Number of requests to make */
int num_workers = 1; /* Number of worker threads to use */
int no_banner = 0; /* Do not show copyright banner */
int heartbeatres = 100; /* How often do we say we're alive */
int concurrency = 1; /* Number of multiple requests to make */
int percentile = 1; /* Show percentile served */
int nolength = 0; /* Accept variable document length */
int confidence = 1; /* Show confidence estimator and warnings */
int tlimit = 0; /* time limit in secs */
int rlimited = 0; /* whether there is a requests limit */
int keepalive = 0; /* try and do keepalive connections */
int windowsize = 0; /* we use the OS default window size */
char servername[1024]; /* name that server reports */
char *hostname; /* host name from URL */
const char *host_field; /* value of "Host:" header field */
const char *path; /* path name */
char *postdata; /* *buffer containing data from postfile */
apr_size_t postlen = 0; /* length of data to be POSTed */
char *content_type = NULL; /* content type to put in POST header */
const char *cookie, /* optional cookie line */
*auth, /* optional (basic/uuencoded) auhentication */
*hdrs; /* optional arbitrary headers */
apr_port_t port; /* port number */
char *proxyhost = NULL; /* proxy host name */
int proxyport = 0; /* proxy port */
const char *connecthost;
int bind_count = 0;
const char **bind_hosts;
apr_sockaddr_t **bind_addrs;
apr_port_t connectport;
char *src_address;
const char *gnuplot; /* GNUplot file */
const char *csvperc; /* CSV Percentile file */
const char *fullurl;
const char *colonhost;
int isproxy = 0;
apr_interval_time_t hbperiod = 0; /* heartbeat period (when time limited) */
apr_interval_time_t aprtimeout = apr_time_from_sec(30); /* timeout value */
apr_interval_time_t ramp = apr_time_from_msec(0); /* ramp delay */
int pollset_wakeable = 0;
int watchdog = 0;
#define WATCHDOG_TIMEOUT apr_time_from_sec(5)
/* overrides for ab-generated common headers */
const char *opt_host; /* which optional "Host:" header specified, if any */
int opt_useragent = 0; /* was an optional "User-Agent:" header specified? */
int opt_accept = 0; /* was an optional "Accept:" header specified? */
/*
* XXX - this is now a per read/write transact type of value
*/
int use_html = 0; /* use html in the report */
const char *tablestring;
const char *trstring;
const char *tdstring;
#ifdef USE_SSL
int is_ssl;
SSL_CTX *ssl_ctx;
char *ssl_cipher = NULL;
char *ssl_cert = NULL;
BIO *bio_out,*bio_err;
#ifdef HAVE_TLSEXT
int tls_use_sni = 1; /* used by default, -I disables it */
const char *tls_sni = NULL; /* 'opt_host' if any, 'hostname' otherwise */
#endif
#endif
apr_time_t start, logtime;
volatile apr_time_t lasttime, stoptime;
/* global request (and its length) */
char _request[8192];
char *request = _request;
apr_size_t reqlen;
/* interesting percentiles */
int percs[] = {50, 66, 75, 80, 90, 95, 98, 99, 100};
struct worker *workers; /* worker threads */
struct connection *conns; /* connection array */
struct data *stats; /* data for each request */
apr_pool_t *cntxt;
apr_sockaddr_t *destsa;
#ifdef NOT_ASCII
apr_xlate_t *from_ascii, *to_ascii;
#endif
#if APR_HAS_THREADS
static apr_thread_mutex_t *workers_mutex;
static apr_thread_cond_t *workers_can_start;
#endif
static APR_INLINE int worker_should_stop(struct worker *worker)
{
return (stoptime <= lasttime
|| (rlimited && worker->metrics.done >= worker->requests));
}
static APR_INLINE int worker_can_connect(struct worker *worker)
{
return !(stoptime <= lasttime
|| (rlimited && worker->started >= worker->requests));
}
static void workers_may_exit(int);
static void start_connection(struct connection *c);
static void try_reconnect(struct connection *c, apr_status_t status);
static void write_request(struct connection *c);
static void read_response(struct connection *c);
static void finalize_connection(struct connection *c, int reuse);
static void close_connection(struct connection *c);
static APR_INLINE void shutdown_connection(struct connection *c)
{
finalize_connection(c, 0);
}
static APR_INLINE void abort_connection(struct connection *c)
{
c->gotheader = 0; /* invalidate */
shutdown_connection(c);
}
static void output_results(void);
static void output_html_results(void);
/* --------------------------------------------------------- */
/* simple little function to write an error string */
static void print_error(const char *s)
{
fprintf(stderr, "%s\n", s);
fflush(stderr);
}
static APR_INLINE void graceful_error(const char *s)
{
print_error(s);
workers_may_exit(0);
test_aborted = 1;
}
static APR_INLINE void fatal_error(const char *s)
{
print_error(s);
test_aborted = 1;
exit(1);
}
/* simple little function to write an APR error string */
static void print_strerror(const char *s, apr_status_t rv)
{
char buf[120];
fprintf(stderr, "%s: %s (%d)\n",
s, apr_strerror(rv, buf, sizeof buf), rv);
fflush(stderr);
}
static APR_INLINE void graceful_strerror(const char *s, apr_status_t rv)
{
print_strerror(s, rv);
workers_may_exit(0);
test_aborted = 1;
}
static APR_INLINE void fatal_strerror(const char *s, apr_status_t rv)
{
print_strerror(s, rv);
test_aborted = 1;
exit(1);
}
/*
* Similar to standard strstr() but we ignore case in this version.
* Copied from ap_strcasestr().
*/
static char *xstrcasestr(const char *s1, const char *s2)
{
char *p1, *p2;
if (*s2 == '\0') {
/* an empty s2 */
return((char *)s1);
}
while(1) {
for ( ; (*s1 != '\0') && (apr_tolower(*s1) != apr_tolower(*s2)); s1++);
if (*s1 == '\0') {
return(NULL);
}
/* found first character of s2, see if the rest matches */
p1 = (char *)s1;
p2 = (char *)s2;
for (++p1, ++p2; apr_tolower(*p1) == apr_tolower(*p2); ++p1, ++p2) {
if (*p1 == '\0') {
/* both strings ended together */
return((char *)s1);
}
}
if (*p2 == '\0') {
/* second string ended, a match */
break;
}
/* didn't find a match here, try starting at next character in s1 */
s1++;
}
return((char *)s1);
}
/* pool abort function */
static int abort_on_oom(int retcode)
{
fprintf(stderr, "Could not allocate memory\n");
exit(APR_ENOMEM);
/* not reached */
return retcode;
}
static int set_polled_events(struct connection *c, apr_int16_t new_reqevents)
{
apr_status_t rv;
/* Add POLLHUP and POLLERR to reqevents should some pollset
* implementations need/use them.
*/
if (new_reqevents != 0) {
new_reqevents |= APR_POLLERR;
if (new_reqevents & APR_POLLIN) {
new_reqevents |= APR_POLLHUP;
}
}
if (c->pollfd.reqevents != new_reqevents) {
if (c->pollfd.reqevents != 0) {
rv = apr_pollset_remove(c->worker->pollset, &c->pollfd);
if (rv != APR_SUCCESS && !APR_STATUS_IS_NOTFOUND(rv)) {
graceful_strerror("apr_pollset_remove()", rv);
return 0;
}
assert(c->worker->polls > 0);
c->worker->polls--;
}
c->pollfd.reqevents = new_reqevents;
if (new_reqevents != 0) {
rv = apr_pollset_add(c->worker->pollset, &c->pollfd);
if (rv != APR_SUCCESS) {
graceful_strerror("apr_pollset_add()", rv);
c->pollfd.reqevents = 0;
return 0;
}
c->worker->polls++;
}
}
return 1;
}
static void set_conn_state(struct connection *c, conn_state_e state,
apr_int16_t events)
{
int (*const counters)[2] = c->worker->counters;
assert(counters[c->state][(c->pollfd.reqevents & APR_POLLOUT) != 0] > 0);
counters[c->state][(c->pollfd.reqevents & APR_POLLOUT) != 0]--;
c->state = state;
if (!set_polled_events(c, events) && state != STATE_DISCONNECTED) {
close_connection(c);
}
counters[c->state][(c->pollfd.reqevents & APR_POLLOUT) != 0]++;
}
/* --------------------------------------------------------- */
/* write out request to a connection - assumes we can write
* (small) request out in one go into our new socket buffer
*
*/
#ifdef USE_SSL
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
static long ssl_print_cb(BIO *bio, int cmd, const char *argp,
size_t len, int argi, long argl, int ret,
size_t *processed)
#else
static long ssl_print_cb(BIO *bio, int cmd, const char *argp,
int argi, long argl, long ret)
#endif
{
BIO *out;
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
(void)len;
(void)processed;
#endif
out=(BIO *)BIO_get_callback_arg(bio);
if (out == NULL) return(ret);
if (cmd == (BIO_CB_READ|BIO_CB_RETURN)) {
BIO_printf(out,"read from %p [%p] (%d bytes => %ld (0x%lX))\n",
bio, argp, argi, (long)ret, (long)ret);
BIO_dump(out,(char *)argp,(int)ret);
return(ret);
}
else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN)) {
BIO_printf(out,"write to %p [%p] (%d bytes => %ld (0x%lX))\n",
bio, argp, argi, (long)ret, (long)ret);
BIO_dump(out,(char *)argp,(int)ret);
}
return ret;
}
static void ssl_state_cb(const SSL *s, int w, int r)
{
if (w & SSL_CB_ALERT) {
BIO_printf(bio_err, "SSL/TLS Alert [%s] %s:%s\n",
(w & SSL_CB_READ ? "read" : "write"),
SSL_alert_type_string_long(r),
SSL_alert_desc_string_long(r));
} else if (w & SSL_CB_LOOP) {
BIO_printf(bio_err, "SSL/TLS State [%s] %s\n",
(SSL_in_connect_init((SSL*)s) ? "connect" : "-"),
SSL_state_string_long(s));
} else if (w & (SSL_CB_HANDSHAKE_START|SSL_CB_HANDSHAKE_DONE)) {
BIO_printf(bio_err, "SSL/TLS Handshake [%s] %s\n",
(w & SSL_CB_HANDSHAKE_START ? "Start" : "Done"),
SSL_state_string_long(s));
}
}
#if OPENSSL_VERSION_NUMBER < 0x10101000
#ifndef RAND_MAX
#define RAND_MAX INT_MAX
#endif
static int ssl_rand_choosenum(int l, int h)
{
int i;
char buf[50];
apr_snprintf(buf, sizeof(buf), "%.0f",
(((double)(rand()%RAND_MAX)/RAND_MAX)*(h-l)));
i = atoi(buf)+1;
if (i < l) i = l;
if (i > h) i = h;
return i;
}
static void ssl_rand_seed(void)
{
int n, l;
apr_time_t t;
pid_t pid;
unsigned char stackdata[256];
/*
* seed in the current time (usually just 4 bytes)
*/
t = lasttime;
l = sizeof(apr_time_t);
RAND_seed((unsigned char *)&t, l);
/*
* seed in the current process id (usually just 4 bytes)
*/
pid = getpid();
l = sizeof(pid_t);
RAND_seed((unsigned char *)&pid, l);
/*
* seed in some current state of the run-time stack (128 bytes)
*/
n = ssl_rand_choosenum(0, sizeof(stackdata)-128-1);
RAND_seed(stackdata+n, 128);
}
#else
#define ssl_rand_seed() /* noop */
#endif
static int ssl_print_connection_info(BIO *bio, SSL *ssl)
{
AB_SSL_CIPHER_CONST SSL_CIPHER *c;
int alg_bits,bits;
BIO_printf(bio,"Transport Protocol :%s\n", SSL_get_version(ssl));
c = SSL_get_current_cipher(ssl);
BIO_printf(bio,"Cipher Suite Protocol :%s\n", SSL_CIPHER_get_version(c));
BIO_printf(bio,"Cipher Suite Name :%s\n",SSL_CIPHER_get_name(c));
bits = SSL_CIPHER_get_bits(c,&alg_bits);
BIO_printf(bio,"Cipher Suite Cipher Bits:%d (%d)\n",bits,alg_bits);
return(1);
}
static void ssl_print_cert_info(BIO *bio, X509 *cert)
{
X509_NAME *dn;
EVP_PKEY *pk;
char buf[1024];
BIO_printf(bio, "Certificate version: %ld\n", X509_get_version(cert)+1);
BIO_printf(bio,"Valid from: ");
ASN1_UTCTIME_print(bio, X509_get_notBefore(cert));
BIO_printf(bio,"\n");
BIO_printf(bio,"Valid to : ");
ASN1_UTCTIME_print(bio, X509_get_notAfter(cert));
BIO_printf(bio,"\n");
pk = X509_get_pubkey(cert);
BIO_printf(bio,"Public key is %d bits\n",
EVP_PKEY_bits(pk));
EVP_PKEY_free(pk);
dn = X509_get_issuer_name(cert);
X509_NAME_oneline(dn, buf, sizeof(buf));
BIO_printf(bio,"The issuer name is %s\n", buf);
dn=X509_get_subject_name(cert);
X509_NAME_oneline(dn, buf, sizeof(buf));
BIO_printf(bio,"The subject name is %s\n", buf);
/* dump the extension list too */
BIO_printf(bio, "Extension Count: %d\n", X509_get_ext_count(cert));
}
static void ssl_print_info(struct connection *c)
{
X509_STACK_TYPE *sk;
X509 *cert;
int count;
BIO_printf(bio_err, "\n");
sk = SSL_get_peer_cert_chain(c->ssl);
if ((count = SK_NUM(sk)) > 0) {
int i;
for (i=1; i<count; i++) {
cert = (X509 *)SK_VALUE(sk, i);
ssl_print_cert_info(bio_out, cert);
}
}
cert = SSL_get_peer_certificate(c->ssl);
if (cert == NULL) {
BIO_printf(bio_out, "Anon DH\n");
} else {
BIO_printf(bio_out, "Peer certificate\n");
ssl_print_cert_info(bio_out, cert);
X509_free(cert);
}
ssl_print_connection_info(bio_err,c->ssl);
SSL_SESSION_print(bio_err, SSL_get_session(c->ssl));
}
static void ssl_proceed_handshake(struct connection *c)
{
struct worker *worker = c->worker;
int again;
do {
int ret, ecode;
apr_status_t status;
again = 0; /* until further notice */
ret = SSL_do_handshake(c->ssl);
ecode = SSL_get_error(c->ssl, ret);
switch (ecode) {
case SSL_ERROR_NONE:
if (verbosity >= 2)
ssl_print_info(c);
if (!worker->metrics.ssl_info[0]) {
AB_SSL_CIPHER_CONST SSL_CIPHER *ci;
X509 *cert;
int sk_bits, pk_bits, swork;
ci = SSL_get_current_cipher(c->ssl);
sk_bits = SSL_CIPHER_get_bits(ci, &swork);
cert = SSL_get_peer_certificate(c->ssl);
if (cert)
pk_bits = EVP_PKEY_bits(X509_get_pubkey(cert));
else
pk_bits = 0; /* Anon DH */
apr_snprintf(worker->metrics.ssl_info, sizeof(worker->metrics.ssl_info),
"%s,%s,%d,%d",
SSL_get_version(c->ssl),
SSL_CIPHER_get_name(ci),
pk_bits, sk_bits);
if (cert) X509_free(cert);
}
#if OPENSSL_VERSION_NUMBER >= 0x10002000L
if (!worker->metrics.ssl_tmp_key[0] && !worker->metrics.ssl_tmp_key[1]) {
EVP_PKEY *key;
if (SSL_get_server_tmp_key(c->ssl, &key)) {
switch (EVP_PKEY_id(key)) {
case EVP_PKEY_RSA:
apr_snprintf(worker->metrics.ssl_tmp_key, 128, "RSA %d bits",
EVP_PKEY_bits(key));
break;
case EVP_PKEY_DH:
apr_snprintf(worker->metrics.ssl_tmp_key, 128, "DH %d bits",
EVP_PKEY_bits(key));
break;
#ifndef OPENSSL_NO_EC
case EVP_PKEY_EC: {
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
size_t len;
char cname[80];
if (!EVP_PKEY_get_utf8_string_param(key, OSSL_PKEY_PARAM_GROUP_NAME,
cname, sizeof(cname), &len)) {
cname[0] = '?';
len = 1;
}
cname[len] = '\0';
#else
const char *cname = NULL;
EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
int nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
EC_KEY_free(ec);
cname = EC_curve_nid2nist(nid);
if (!cname) {
cname = OBJ_nid2sn(nid);
if (!cname)
cname = "?";
}
#endif
apr_snprintf(worker->metrics.ssl_tmp_key, 128, "ECDH %s %d bits",
cname, EVP_PKEY_bits(key));
break;
}
#endif
default:
apr_snprintf(worker->metrics.ssl_tmp_key, 128, "%s %d bits",
OBJ_nid2sn(EVP_PKEY_id(key)),
EVP_PKEY_bits(key));
break;
}
EVP_PKEY_free(key);
}
else {
/* not available, do not reenter here still */
worker->metrics.ssl_tmp_key[1] = !0;
}
}
#endif
write_request(c);
break;
case SSL_ERROR_WANT_READ:
set_conn_state(c, STATE_HANDSHAKE, APR_POLLIN);
break;
case SSL_ERROR_WANT_WRITE:
set_conn_state(c, STATE_HANDSHAKE, APR_POLLOUT);
break;
case SSL_ERROR_WANT_CONNECT:
case SSL_ERROR_SSL:
case SSL_ERROR_SYSCALL:
/* Unexpected result */
status = apr_get_netos_error();
BIO_printf(bio_err, "SSL handshake failed (%d): %s\n", ecode,
apr_psprintf(c->ctx, "%pm", &status));
ERR_print_errors(bio_err);
abort_connection(c);
break;
default:
again = 1;
break;
}
} while (again);
}
#endif /* USE_SSL */
static void write_request(struct connection * c)
{
struct worker *worker = c->worker;
do {
apr_time_t tnow;
apr_size_t l = c->rwrite;
apr_status_t e = APR_SUCCESS; /* prevent gcc warning */
tnow = lasttime = apr_time_now();
/*
* First time round ?
*/
if (c->rwrite == 0) {
/* zero connect time with keep-alive */
if (c->keptalive)
c->start = tnow;