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# Copyright (c) 2017 Cisco and/or its affiliates.
# Licensed 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.

*** Settings ***
| Library | resources.libraries.python.Memif
| Documentation | Memif interface keyword library.

*** Keywords ***
| Set up memif interfaces on DUT node
| | [Documentation] | Create two Memif interfaces on given VPP node.
| | ...
| | ... | *Arguments:*
| | ... | - ${dut_node} - DUT node. Type: dictionary
| | ... | - ${sock1} - Socket path for first Memif interface. Type: string
| | ... | - ${sock2} - Socket path for second Memif interface. Type: string
| | ... | - ${number} - Memif interface key. Type: integer
| | ... | - ${memif_if1} - Name of the first Memif interface (Optional).
| | ... | Type: string
| | ... | - ${memif_if2} - Name of the second Memif interface (Optional).
| | ... | Type: string
| | ...
| | ... | _NOTE:_ This KW sets following test case variable:
| | ... | - ${${memif_if1}} - First Memif interface.
| | ... | - ${${memif_if2}} - Second Memif interface.
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Set up memif interfaces on DUT node \
| | ... | \| ${nodes['DUT1']} \| /tmp/sock1 \| /tmp/sock2 \| 1 \|
| | ... | \| Set up memif interfaces on DUT node \
| | ... | \| ${nodes['DUT2']} \| /tmp/sock1 \| /tmp/sock2 \| 1 \
| | ... | \| dut2_memif_if1 \| dut2_memif_if2 \|
| | ...
| | [Arguments] | ${dut_node} | ${sock1} | ${sock2} | ${number}=${1}
| | ... | ${memif_if2}=memif_if1 | ${memif_if1}=memif_if2
| | ${key_1}= | Evaluate | (${number}*2)-1
| | ${key_2}= | Evaluate | (${number}*2)
| | ${memif_1}= | Create memif interface | ${dut_node} | ${sock1} | ${key_1}
| | ${memif_2}= | Create memif interface | ${dut_node} | ${sock2} | ${key_2}
| | Set Interface State | ${dut_node} | ${memif_1} | up
| | Set Interface State | ${dut_node} | ${memif_2} | up
| | Set Test Variable | ${${memif_if1}} | ${memif_1}
| | Set Test Variable | ${${memif_if2}} | ${memif_2}

| Create memif VPP configuration on '${nr}' LXC containers on '${dut}' node
| | [Documentation] | Create memif configuration of VPP on multiple LXC
| | ... | container on DUT node.
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Create memif VPP configuration on 1 LXC containers on DUT1 node \|
| | ...
| | :FOR | ${number} | IN RANGE | 1 | ${nr}+1
| | | Run Keyword | ${dut}_${lxc_base_name}_${number}.Create VPP cfg in container
| | | ... | memif_create_lxc.vat | socket1=memif-${number}-1
| | | ... | socket2=memif-${number}-2

| Create memif VPP configuration on '${nr}' LXC containers on all DUT nodes
| | [Documentation] | Create memif configuration of VPP on multiple LXC
| | ... | container on all DUT nodes.
| | ...
| | ... | *Example:*
| | ...
| | ... | \| Create memif VPP configuration on 1 LXC containers on all \
| | ... | DUT nodes \|
| | ...
| | ${duts}= | Get Matches | ${nodes} | DUT*
| | :FOR | ${dut} | IN | @{duts}
| | | Create memif VPP configuration on '${nr}' LXC containers on '${dut}' node
"p">, char * chroot_prefix, pneum_callback_t cb) { int rv = 0; pneum_main_t *pm = &pneum_main; if (chroot_prefix != NULL) vl_set_memory_root_path (chroot_prefix); if ((rv = vl_client_api_map("/vpe-api"))) { clib_warning ("vl_client_api map rv %d", rv); return rv; } if (vl_client_connect(name, 0, 32) < 0) { vl_client_api_unmap(); return (-1); } if (cb) { /* Start the rx queue thread */ rv = pthread_create(&pm->rx_thread_handle, NULL, pneum_rx_thread_fn, 0); if (rv) { clib_warning("pthread_create returned %d", rv); vl_client_api_unmap(); return (-1); } pneum_callback = cb; } pm->connected_to_vlib = 1; return (0); } int pneum_disconnect (void) { api_main_t *am = &api_main; pneum_main_t *pm = &pneum_main; if (pm->rx_thread_jmpbuf_valid) { vl_api_rx_thread_exit_t *ep; uword junk; ep = vl_msg_api_alloc (sizeof (*ep)); ep->_vl_msg_id = ntohs(VL_API_RX_THREAD_EXIT); vl_msg_api_send_shmem(am->vl_input_queue, (u8 *)&ep); pthread_join(pm->rx_thread_handle, (void **) &junk); } if (pm->connected_to_vlib) { vl_client_disconnect(); vl_client_api_unmap(); pneum_callback = 0; } memset (pm, 0, sizeof (*pm)); return (0); } int pneum_read (char **p, int *l) { unix_shared_memory_queue_t *q; api_main_t *am = &api_main; pneum_main_t *pm = &pneum_main; uword msg; if (!pm->connected_to_vlib) return -1; *l = 0; if (am->our_pid == 0) return (-1); q = am->vl_input_queue; int rv = unix_shared_memory_queue_sub(q, (u8 *)&msg, 0); if (rv == 0) { u16 msg_id = ntohs(*((u16 *)msg)); msgbuf_t *msgbuf = (msgbuf_t *)(((u8 *)msg) - offsetof(msgbuf_t, data)); *l = ntohl(msgbuf->data_len); if (*l == 0) { printf("Unregistered API message: %d\n", msg_id); return (-1); } *p = (char *)msg; } else { printf("Read failed with %d\n", rv); } return (rv); } /* * XXX: Makes the assumption that client_index is the first member */ typedef VL_API_PACKED(struct _vl_api_header { u16 _vl_msg_id; u32 client_index; }) vl_api_header_t; static unsigned int pneum_client_index (void) { return (api_main.my_client_index); } int pneum_write (char *p, int l) { int rv = -1; api_main_t *am = &api_main; vl_api_header_t *mp = vl_msg_api_alloc(l); unix_shared_memory_queue_t *q; pneum_main_t *pm = &pneum_main; if (!pm->connected_to_vlib) return -1; if (!mp) return (-1); memcpy(mp, p, l); mp->client_index = pneum_client_index(); q = am->shmem_hdr->vl_input_queue; rv = unix_shared_memory_queue_add(q, (u8 *)&mp, 0); if (rv != 0) { printf("vpe_api_write fails: %d\n", rv); /* Clear message */ pneum_free(mp); } return (rv); } uint32_t pneum_get_msg_index (unsigned char * name) { return vl_api_get_msg_index (name); }