diff options
| author |   Anton Nikolaev <anikolaev@netgate.com> | 2022-05-16 10:33:17 +0000 |
|---|---|---|
| committer |   Matthew Smith <mgsmith@netgate.com> | 2022-05-17 19:42:17 +0000 |
| commit | 61f6a4c4f026a83390f41595cb77771a668cc55c (patch) | |
| tree | eb7ffe4d7d65fe5c9d00c25720ea31b53aa65070 | |
| parent | 59a08e65094db28884fc40e9562e303fde3b21d8 (diff) | |
interface: fix overflow of link speed.
Type: fix
There were several places where mbps were converted to kbps for
link_speed, but often drivers of devices set link speed to unknown
(0xFFFFFFFF) on initialization, so there was multiplication of
link_speed equal 0xFFFFFFFF(UINT32_MAX) by 1000, this provides
overflow of unsigned int, and as result link_speed was equal
4295 Gbps, but actually link_speed is unknown.
Signed-off-by: Anton Nikolaev <anikolaev@netgate.com>
Change-Id: Ib462ed6ed685654af4687041e115bfb74e640f13
| -rw-r--r-- | src/plugins/avf/device.c | 5 | ||||
| -rw-r--r-- | src/plugins/dpdk/device/init.c | 4 | ||||
| -rw-r--r-- | src/plugins/vmxnet3/vmxnet3.c | 10 | ||||
| -rw-r--r-- | src/vnet/interface_format.c | 2 |
4 files changed, 13 insertions, 8 deletions
diff --git a/src/plugins/avf/device.c b/src/plugins/avf/device.c index df6d12881a5..d12785cc552 100644 --- a/src/plugins/avf/device.c +++ b/src/plugins/avf/device.c @@ -1169,8 +1169,9 @@ avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq) flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX | VNET_HW_INTERFACE_FLAG_LINK_UP); vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags); - vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index, - mbps * 1000); + vnet_hw_interface_set_link_speed ( + vnm, ad->hw_if_index, + (mbps == UINT32_MAX) ? UINT32_MAX : mbps * 1000); ad->link_speed = mbps; } else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0) diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c index 6d3b8643147..6b1479b9c75 100644 --- a/src/plugins/dpdk/device/init.c +++ b/src/plugins/dpdk/device/init.c @@ -1390,7 +1390,9 @@ dpdk_update_link_state (dpdk_device_t * xd, f64 now) } if (xd->link.link_speed != prev_link.link_speed) vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index, - xd->link.link_speed * 1000); + (xd->link.link_speed == UINT32_MAX) ? + UINT32_MAX : + xd->link.link_speed * 1000); if (xd->link.link_status != prev_link.link_status) { diff --git a/src/plugins/vmxnet3/vmxnet3.c b/src/plugins/vmxnet3/vmxnet3.c index a0c125a2c97..770cb2d418d 100644 --- a/src/plugins/vmxnet3/vmxnet3.c +++ b/src/plugins/vmxnet3/vmxnet3.c @@ -572,8 +572,9 @@ vmxnet3_event_irq_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, { vd->flags |= VMXNET3_DEVICE_F_LINK_UP; vd->link_speed = ret >> 16; - vnet_hw_interface_set_link_speed (vnm, vd->hw_if_index, - vd->link_speed * 1000); + vnet_hw_interface_set_link_speed ( + vnm, vd->hw_if_index, + (vd->link_speed == UINT32_MAX) ? UINT32_MAX : vd->link_speed * 1000); vnet_hw_interface_set_flags (vnm, vd->hw_if_index, VNET_HW_INTERFACE_FLAG_LINK_UP); } @@ -867,8 +868,9 @@ vmxnet3_create_if (vlib_main_t * vm, vmxnet3_create_if_args_t * args) vd->flags |= VMXNET3_DEVICE_F_INITIALIZED; vmxnet3_enable_interrupt (vd); - vnet_hw_interface_set_link_speed (vnm, vd->hw_if_index, - vd->link_speed * 1000); + vnet_hw_interface_set_link_speed ( + vnm, vd->hw_if_index, + (vd->link_speed == UINT32_MAX) ? UINT32_MAX : vd->link_speed * 1000); if (vd->flags & VMXNET3_DEVICE_F_LINK_UP) vnet_hw_interface_set_flags (vnm, vd->hw_if_index, VNET_HW_INTERFACE_FLAG_LINK_UP); diff --git a/src/vnet/interface_format.c b/src/vnet/interface_format.c index e34b6fb62c0..304fbb8a068 100644 --- a/src/vnet/interface_format.c +++ b/src/vnet/interface_format.c @@ -120,7 +120,7 @@ format_vnet_hw_interface_link_speed (u8 * s, va_list * args) { u32 link_speed = va_arg (*args, u32); - if (link_speed == 0) + if (link_speed == 0 || link_speed == UINT32_MAX) return format (s, "unknown"); if (link_speed >= 1000000) |