/*
* Delete single flow or all flows.
*
* When request->key is empty delete all flows
*/
static void
flow_cmd_del(struct dpdk_flow_message *request)
{
struct dpdk_message reply = {0};
struct flow_key empty = {0};
int32_t pos = 0;
if (!memcmp(&request->key, &empty, sizeof(request->key))) {
/* if flow is empty, delete all flows */
for (pos = 0; pos < MAX_FLOWS; pos++) {
if (flow_table->used[pos]) {
rte_hash_del_key(handle, &request->key);
flow_table_del_flow(pos);
}
}
reply.type = 0;
} else {
/* delete specified flow */
pos = rte_hash_del_key(handle, &request->key);
if (pos < 0) {
reply.type = ENOENT;
}
else {
flow_table_get_flow(pos, NULL, NULL, &request->stats);
flow_table_del_flow(pos);
reply.type = 0;
}
}
reply.flow_msg = *request;
send_reply_to_vswitchd(&reply);
}
/*
* Delete single flow or all flows.
*
* When request->key is empty delete all flows
*/
static void
flow_cmd_del(struct dpdk_flow_message *request)
{
struct dpdk_message reply = {0};
struct flow_key empty = {0};
int pos = 0;
if (!memcmp(&request->key, &empty, sizeof(request->key))) {
flow_table_del_all();
reply.type = 0;
} else {
pos = flow_table_lookup(&request->key);
if (pos < 0) {
reply.type = ENOENT;
} else {
/* Retrieve flow stats*/
flow_table_get_flow(&request->key,
NULL, &request->stats);
flow_table_del_flow(&request->key);
reply.type = 0;
}
}
reply.flow_msg = *request;
send_reply_to_vswitchd(&reply);
}
/* Try to add a normal flow and duplicate flow, and add a flow with
* incorrect parameters, which should succeed, fail with -1 and fail
* with -1 respectively */
static void
test_flow_table_add_flow(int argc, char *argv[])
{
struct flow_key key1 = {1};
struct action action_multiple[MAX_ACTIONS] = {0};
int ret = 0;
flow_table_init();
/* TODO: Break this into multiple tests? */
action_output_build(&action_multiple[0], 1);
action_output_build(&action_multiple[1], 2);
action_null_build(&action_multiple[2]);
ret = flow_table_add_flow(&key1, action_multiple);
assert(ret >= 0);
/* check no duplicates */
ret = flow_table_add_flow(&key1, action_multiple);
assert(ret < 0);
/* check incorrect parameters */
flow_table_del_flow(&key1);
ret = flow_table_add_flow(NULL, action_multiple);
assert(ret < 0);
ret = flow_table_add_flow(&key1, NULL);
assert(ret < 0);
}