static int net_init_nic(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan) { int idx; NICInfo *nd; const char *netdev; idx = nic_get_free_idx(); if (idx == -1 || nb_nics >= MAX_NICS) { qemu_error("Too Many NICs\n"); return -1; } nd = &nd_table[idx]; memset(nd, 0, sizeof(*nd)); if ((netdev = qemu_opt_get(opts, "netdev"))) { nd->netdev = qemu_find_netdev(netdev); if (!nd->netdev) { qemu_error("netdev '%s' not found\n", netdev); return -1; } } else { assert(vlan); nd->vlan = vlan; } if (name) { nd->name = qemu_strdup(name); } if (qemu_opt_get(opts, "model")) { nd->model = qemu_strdup(qemu_opt_get(opts, "model")); } if (qemu_opt_get(opts, "addr")) { nd->devaddr = qemu_strdup(qemu_opt_get(opts, "addr")); } nd->macaddr[0] = 0x52; nd->macaddr[1] = 0x54; nd->macaddr[2] = 0x00; nd->macaddr[3] = 0x12; nd->macaddr[4] = 0x34; nd->macaddr[5] = 0x56 + idx; if (qemu_opt_get(opts, "macaddr") && net_parse_macaddr(nd->macaddr, qemu_opt_get(opts, "macaddr")) < 0) { qemu_error("invalid syntax for ethernet address\n"); return -1; } nd->nvectors = qemu_opt_get_number(opts, "vectors", NIC_NVECTORS_UNSPECIFIED); if (nd->nvectors != NIC_NVECTORS_UNSPECIFIED && (nd->nvectors < 0 || nd->nvectors > 0x7ffffff)) { qemu_error("invalid # of vectors: %d\n", nd->nvectors); return -1; } nd->used = 1; if (vlan) { nd->vlan->nb_guest_devs++; } nb_nics++; return idx; }