Re: add patch to remove secondary ip addresses when curl-loader exit
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Re: add patch to remove secondary ip addresses when curl-loader exit
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From: Robert I. <cor...@gm...> - 2013-04-03 20:31:19
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thanks, Vincent.
On Wed, Apr 3, 2013 at 10:33 PM, Vincent Li <vin...@gm...> wrote:
> Hi,
>
> I am using curl-loader to test web services, I like the feature that
> curl-loader creating secondary ip addresses, is it possible to remove
> these ip addresses after each curl-loader run automatically because it
> may create ip conflict in my environment when I run curl-loader from
> another box using same secondary ip addresses.
>
> I am still rough with C and I have an incomplete patch idea to remove
> secondary ip addresses when SIGINT received from keyboard, the idea is
> to add a bool parameter to create_ip_addrs and pass it on to
> add_secondary_ip_addrs and add_secondary_ip_to_device, when the bool
> parameter is 0 (false), then remove secondary ip addresses, but I am
> not sure where to call create_ip_addrs properly with the bool
> parameter false with the batch contexts info, etc. could anyone shed
> on light on how to do this?
>
> here is my half baked patch against curl-loader-0.56:
>
> diff --git a/ip_secondary.c b/ip_secondary.c
> index ffd1e2d..7def472 100644
> --- a/ip_secondary.c
> +++ b/ip_secondary.c
> @@ -147,7 +147,7 @@ typedef struct
> ********************************************************************************/
> int add_secondary_ip_to_device(const char*const device,
> const char*const ip_slash_mask,
> - char* scope)
> + char* scope, bool add)
> {
> request req;
>
> @@ -168,7 +168,7 @@ int add_secondary_ip_to_device(const char*const device,
>
> req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
> req.n.nlmsg_flags = NLM_F_REQUEST;
> - req.n.nlmsg_type = RTM_NEWADDR;
> + req.n.nlmsg_type = add ? RTM_NEWADDR : RTM_DELADDR;
> req.ifa.ifa_family = AF_UNSPEC;
>
> get_prefix(&lcl, (char*)ip_slash_mask, req.ifa.ifa_family);
> @@ -891,7 +891,7 @@ int add_secondary_ip_addrs (const char*const interface,
> int addr_number,
> const char**const addresses,
> int netmask,
> - char* addr_scope)
> + char* addr_scope, bool add)
> {
> char ip_slash_mask_buffer[64];
> int j = 0, rval_set_ip = -1;
> @@ -907,7 +907,7 @@ int add_secondary_ip_addrs (const char*const interface,
>
> rval_set_ip = add_secondary_ip_to_device (interface,
> ip_slash_mask_buffer,
> - addr_scope);
> + addr_scope, add);
>
> switch (rval_set_ip)
> {
> diff --git a/loader.c b/loader.c
> index eb852b7..cfbfc27 100644
> --- a/loader.c
> +++ b/loader.c
> @@ -69,7 +69,7 @@ static size_t do_nothing_write_func (void *ptr,
> size_t nmemb,
> void *stream);
>
> -static int create_ip_addrs (batch_context* bctx, int bctx_num);
> +static int create_ip_addrs (batch_context* bctx, int bctx_num, bool add);
>
> static void* batch_function (void *batch_data);
> static int initial_handles_init (struct client_context*const cdata);
> @@ -179,7 +179,7 @@ main (int argc, char *argv [])
> Add ip-addresses to the loading network interfaces
> and keep them in batch-contexts.
> */
> - if (create_ip_addrs (bc_arr, batches_num) == -1)
> + if (create_ip_addrs (bc_arr, batches_num, 1) == -1)
> {
> fprintf (stderr, "%s - error: create_ip_addrs () failed. \n", __func__);
> return -1;
> @@ -1717,7 +1717,7 @@ static void free_url (url_context* url, int clients_max)
> * bctx_num - number of batch contexts in <bctx_array>
> * Return Code/Output - None
> *******************************************************************************/
> -static int create_ip_addrs (batch_context* bctx_array, int bctx_num)
> +static int create_ip_addrs (batch_context* bctx_array, int bctx_num, bool add)
> {
> int batch_index, client_index; /* Batch and client indexes */
> char*** ip_addresses =0;
> @@ -1777,7 +1777,7 @@ static int create_ip_addrs (batch_context*
> bctx_array, int bctx_num)
> bctx->client_num_max,
> (const char** const)
> ip_addresses[batch_index],
> bctx->cidr_netmask,
> - bctx->scope) == -1)
> + bctx->scope, add) == -1)
> {
> fprintf (stderr,
> "%s - error: add_secondary_ip_addrs() - failed for
> batch = %d\n",
> diff --git a/loader.h b/loader.h
> index 47c2130..eac70aa 100644
> --- a/loader.h
> +++ b/loader.h
> @@ -44,6 +44,7 @@ struct client_context;
> struct batch_context;
> struct stat_point;
> struct timer_node;
> +typedef _Bool bool;
>
> /*--------- Common loading functions ----------------*/
>
> @@ -120,7 +121,7 @@ int response_logfiles_set (struct client_context*
> cctx, struct url_context* url)
> ********************************************************************************/
> int add_secondary_ip_to_device (const char*const device,
> const char*const ip_slash_mask,
> - char* scope);
> + char* scope, bool add);
>
> /*******************************************************************************
> * Function name - add_secondary_ip_addrs
> @@ -138,7 +139,7 @@ int add_secondary_ip_addrs (const char*const interface,
> int addr_number,
> const char**const addresses,
> int netmask,
> - char* scope);
> + char* scope, bool add);
>
> /*******************************************************************************
> * Function name - parse_config_file
>
>
> Thanks in advance!
>
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--
Regards,
Robert Iakobashvili, Ph.D.
Home: http://www.ghotit.com
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