Re: Curl-loader certificate handling [SEC=UNCLASSIFIED]

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Hi Ivor,

There is no issue for curl-loader to fetch https:// URL's with selfsigned 
ceritifcates. I used curl-loader against a SSL-apache2 with self-signed 
certs just fine.
curl-loader does not check for certificates, it applies the equivalent of 
curl -k:
loader.c:  curl_easy_setopt (handle, CURLOPT_SSL_VERIFYPEER, 0);
loader.c:  curl_easy_setopt (handle, CURLOPT_SSL_VERIFYHOST, 0);

However I fouond the most likely reasons for getting a URL timeout:
1. Your source IP's do not match. Before specifying any additional IP's 
set the local interface IP first as the only one and try it. I.e. if eth0=
194.90.71.215, set:

IP_ADDR_MIN=194.90.71.215
IP_ADDR_MAX=194.90.71.215

2. Proxy issues. Depending on your environment, libcurl might or might not 
pick up the proxy. Check with curl-loader options -d -v -u the output of 
the log file and check especially that the target URL used by curl-loader 
is the one you intend to use. Set/unset the proxy using the libcurl 
environment variables or the -x option in curl-loader. 

Also, it is good to start with a non-forms html page, something as simple 
as a static index.html. This way you can narrow down the isses until your 
config works. Running a parallel tcpdump window to check the connection 
might help, too, although with SSL you don't see the data.

Best Regards,
Frank

"Ivor Oorloff" <ivo...@co...> 
02/10/2009 08:43 AM
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Subject
Curl-loader certificate handling [SEC=UNCLASSIFIED]

Security:[SEC=UNCLASSIFIED]

Hi,
I was hoping to find a way to use curl-loader for load testing https 
websites that have a "testing" server certificate.  ie. the server 
certificate is self generated with no valid or trusted root CA.   This can 
be achieved in curl with the -k or --insecure option which ignores CA 
confirmation.  Is there a way to trigger this option in curl-loader?

I have run the same URL in curl with the -k option and can access it with 
no problem.
However curl-loader will not access the site.  (Works fine for non-ssl 
sites)
Curl and Curl-loader appear to use the same libraries: -

oracle@cedar-dev:~/curl-loader-0.46> ldd curl-loader
        linux-gate.so.1 =>  (0xffffe000)
        libdl.so.2 => /lib/libdl.so.2 (0xb7f6f000)
        libpthread.so.0 => /lib/libpthread.so.0 (0xb7f5a000)
        librt.so.1 => /lib/librt.so.1 (0xb7f51000)
        libz.so.1 => /lib/libz.so.1 (0xb7f3f000)
        libssl.so.0.9.8 => /usr/lib/libssl.so.0.9.8 (0xb7f01000)
        libcrypto.so.0.9.8 => /usr/lib/libcrypto.so.0.9.8 (0xb7dd9000)
        libc.so.6 => /lib/libc.so.6 (0xb7cb7000)
        /lib/ld-linux.so.2 (0xb7f89000)
oracle@cedar-dev:~/curl-loader-0.46> which curl
/usr/bin/curl
oracle@cedar-dev:~/curl-loader-0.46> ldd /usr/bin/curl
        linux-gate.so.1 =>  (0xffffe000)
        libcurl.so.3 => /usr/lib/libcurl.so.3 (0xb7f7e000)
        libidn.so.11 => /usr/lib/libidn.so.11 (0xb7f4e000)
        libssl.so.0.9.8 => /usr/lib/libssl.so.0.9.8 (0xb7f11000)
        libcrypto.so.0.9.8 => /usr/lib/libcrypto.so.0.9.8 (0xb7de9000)
        libdl.so.2 => /lib/libdl.so.2 (0xb7de4000)
        libz.so.1 => /lib/libz.so.1 (0xb7dd2000)
        libc.so.6 => /lib/libc.so.6 (0xb7cb0000)
        /lib/ld-linux.so.2 (0xb7fc8000)

Curl-loader gets a timeout condition as below:-

cedar-dev:/apps/oracle/curl-loader-0.46 # more 
login_uas_logoff_cycling.log
0 1 (194.90.71.215)  :== Info: About to connect() to 
pssamembersuat.comsuper.gov
.au port 443 (#0)
: eff-url: , url: 
0 1 (194.90.71.215)  :== Info:   Trying 152.91.36.101... : eff-url: , url: 

0 1 (194.90.71.215)  :== Info: Bind local address to 194.90.71.215
: eff-url: , url: 
0 1 (194.90.71.215)  :== Info: Local port: 45786
: eff-url: , url: 
0 1 (194.90.71.215)  !! ERROR: Connection time-out
: eff-url: , url: 
0 1 (194.90.71.215)  :== Info: Closing connection #0
: eff-url: , url: 
cedar-dev:/apps/oracle/curl-loader-0.46 # 

Conf file is:

########### GENERAL SECTION ################################
BATCH_NAME=login_uas_logoff_cycling
CLIENTS_NUM_MAX = 1
INTERFACE=eth1 
NETMASK=24 
IP_ADDR_MIN=194.90.71.215
IP_ADDR_MAX=194.90.71.216
CYCLES_NUM= 1
URLS_NUM=2

########### URL SECTION ##################################

### Login URL -  only once for each client

# GET-part
URL= https://pssamembersuat.comsuper.gov.au/ICSLogin/?"
https://pssamembersuat.co 
msuper.gov.au/comsuper_uat/members/login/_ac_login_p1/AC/_pid/login_p1?action=lo
gin"
URL_SHORT_NAME="Login-GET"
URL_DONT_CYCLE = 1
REQUEST_TYPE=GET
TIMER_URL_COMPLETION = 0 # In msec. Now it is enforced by cancelling url 
fetch o
n timeout 
TIMER_AFTER_URL_SLEEP =0

# POST-part
URL=""
URL_USE_CURRENT= 1
URL_SHORT_NAME="Login-POST"
URL_DONT_CYCLE = 1
USERNAME=100000001614011961
PASSWORD=123123
REQUEST_TYPE=POST
FORM_USAGE_TYPE= SINGLE_USER
FORM_STRING= username=%s&password=%s # Means the same credentials for all 
client
s/users
TIMER_URL_COMPLETION = 0 # In msec. Now it is enforced by cancelling url 
fetch o
n timeout 
TIMER_AFTER_URL_SLEEP =500

Any help would be appreciated.

Ivor

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