a7ec31750c
Coverity complains on null pointer dereference. It is not likely to happen. Type: fix Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: Iab726a1e2d60725cec7ab0bbd2787b62e6393d33
113 lines
3.1 KiB
C
113 lines
3.1 KiB
C
/*
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* Copyright (c) 2017 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdint.h>
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#include <vlib/vlib.h>
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#include <vlib/unix/unix.h>
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#include <vnet/bonding/node.h>
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#include <lacp/node.h>
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static int
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lacp_set_port_selected (vlib_main_t *vm, bond_if_t *bif, member_if_t *mif)
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{
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uword p;
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member_if_t *mif2;
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/* Handle loopback port */
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if (!memcmp (mif->partner.system, mif->actor.system, 6) &&
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(mif->partner.key == mif->actor.key))
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{
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mif->loopback_port = 1;
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mif->actor.state &= ~LACP_STATE_AGGREGATION;
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mif->selected = LACP_PORT_UNSELECTED;
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lacp_machine_dispatch (&lacp_mux_machine, vm, mif,
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LACP_MUX_EVENT_UNSELECTED, &mif->mux_state);
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return LACP_ERROR_LOOPBACK_PORT;
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}
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if (vec_len (bif->active_members))
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{
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p = *vec_elt_at_index (bif->active_members, 0);
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mif2 = bond_get_member_by_sw_if_index (p);
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if (mif2 && ((mif2->partner.key != mif->partner.key) ||
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memcmp (mif2->partner.system, mif->partner.system, 6)))
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{
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mif->selected = LACP_PORT_UNSELECTED;
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lacp_machine_dispatch (&lacp_mux_machine, vm, mif,
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LACP_MUX_EVENT_UNSELECTED, &mif->mux_state);
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return LACP_ERROR_BAD_KEY;
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}
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}
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mif->selected = LACP_PORT_SELECTED;
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switch (mif->mux_state)
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{
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case LACP_MUX_STATE_DETACHED:
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break;
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case LACP_MUX_STATE_WAITING:
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if (!mif->ready)
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return LACP_ERROR_NONE;
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break;
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case LACP_MUX_STATE_ATTACHED:
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if (!(mif->partner.state & LACP_STATE_SYNCHRONIZATION))
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return LACP_ERROR_NONE;
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break;
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case LACP_MUX_STATE_COLLECTING_DISTRIBUTING:
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break;
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default:
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break;
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}
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return lacp_machine_dispatch (&lacp_mux_machine, vm, mif,
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LACP_MUX_EVENT_SELECTED, &mif->mux_state);
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}
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int
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lacp_selection_logic (vlib_main_t *vm, member_if_t *mif)
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{
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member_if_t *mif2;
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bond_if_t *bif;
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u32 *sw_if_index;
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bif = bond_get_bond_if_by_dev_instance (mif->bif_dev_instance);
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vec_foreach (sw_if_index, bif->members)
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{
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mif2 = bond_get_member_by_sw_if_index (*sw_if_index);
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if (mif2 && (mif2->actor.state & LACP_STATE_SYNCHRONIZATION) &&
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(mif2->ready_n == 0))
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goto out;
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}
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vec_foreach (sw_if_index, bif->members)
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{
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mif2 = bond_get_member_by_sw_if_index (*sw_if_index);
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if (mif2)
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{
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mif2->ready = 1;
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if (mif2->selected == LACP_PORT_SELECTED)
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lacp_machine_dispatch (&lacp_mux_machine, vm, mif2,
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LACP_MUX_EVENT_READY, &mif2->mux_state);
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}
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}
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out:
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return lacp_set_port_selected (vm, bif, mif);
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}
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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