diff options
Diffstat (limited to 'hw/net')
| -rw-r--r-- | hw/net/virtio-net.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 90eca9a87e..d312b9c83c 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -610,11 +610,11 @@ static int virtio_net_handle_mac(VirtIONet *n, uint8_t cmd, return VIRTIO_NET_ERR; } - n->mac_table.in_use = 0; - n->mac_table.first_multi = 0; - n->mac_table.uni_overflow = 0; - n->mac_table.multi_overflow = 0; - memset(n->mac_table.macs, 0, MAC_TABLE_ENTRIES * ETH_ALEN); + int in_use = 0; + int first_multi = 0; + uint8_t uni_overflow = 0; + uint8_t multi_overflow = 0; + uint8_t *macs = g_malloc0(MAC_TABLE_ENTRIES * ETH_ALEN); s = iov_to_buf(iov, iov_cnt, 0, &mac_data.entries, sizeof(mac_data.entries)); @@ -629,19 +629,19 @@ static int virtio_net_handle_mac(VirtIONet *n, uint8_t cmd, } if (mac_data.entries <= MAC_TABLE_ENTRIES) { - s = iov_to_buf(iov, iov_cnt, 0, n->mac_table.macs, + s = iov_to_buf(iov, iov_cnt, 0, macs, mac_data.entries * ETH_ALEN); if (s != mac_data.entries * ETH_ALEN) { goto error; } - n->mac_table.in_use += mac_data.entries; + in_use += mac_data.entries; } else { - n->mac_table.uni_overflow = 1; + uni_overflow = 1; } iov_discard_front(&iov, &iov_cnt, mac_data.entries * ETH_ALEN); - n->mac_table.first_multi = n->mac_table.in_use; + first_multi = in_use; s = iov_to_buf(iov, iov_cnt, 0, &mac_data.entries, sizeof(mac_data.entries)); @@ -656,24 +656,29 @@ static int virtio_net_handle_mac(VirtIONet *n, uint8_t cmd, goto error; } - if (n->mac_table.in_use + mac_data.entries <= MAC_TABLE_ENTRIES) { - s = iov_to_buf(iov, iov_cnt, 0, - &n->mac_table.macs[n->mac_table.in_use * ETH_ALEN], + if (in_use + mac_data.entries <= MAC_TABLE_ENTRIES) { + s = iov_to_buf(iov, iov_cnt, 0, &macs[in_use * ETH_ALEN], mac_data.entries * ETH_ALEN); if (s != mac_data.entries * ETH_ALEN) { goto error; } - n->mac_table.in_use += mac_data.entries; + in_use += mac_data.entries; } else { - n->mac_table.multi_overflow = 1; + multi_overflow = 1; } + n->mac_table.in_use = in_use; + n->mac_table.first_multi = first_multi; + n->mac_table.uni_overflow = uni_overflow; + n->mac_table.multi_overflow = multi_overflow; + memcpy(n->mac_table.macs, macs, MAC_TABLE_ENTRIES * ETH_ALEN); + g_free(macs); rxfilter_notify(nc); return VIRTIO_NET_OK; error: - rxfilter_notify(nc); + g_free(macs); return VIRTIO_NET_ERR; } |