static bool parse_vnic_interface(char* name, uint16_t* vmid, uint16_t* vnic_index, uint16_t* interface_index) {
if(strncmp(name, "v", 1))
return false;
char* next;
char* _vmid = strtok_r(name + 1, "eth", &next);
if(!_vmid)
return false;
if(!is_uint8(_vmid))
return false;
*vmid = parse_uint8(_vmid);
char* _interface_index;
char* _vnic_index = strtok_r(next, ":", &_interface_index);
if(!_vnic_index)
return false;
if(!is_uint8(_vnic_index))
return false;
*vnic_index = parse_uint8(_vnic_index);
if(_interface_index) {
if(!is_uint8(_interface_index))
return false;
*interface_index = parse_uint8(_interface_index) + 1;
} else
*interface_index = 0;
return true;
}
static int vm_create(int argc, char* argv[]) {
// Default value
VMSpec vm = {};
vm.core_size = 1;
vm.memory_size = 0x1000000; // 16MB
vm.storage_size = 0x1000000; // 16MB
// Main options
static struct option options[] = {
{ "core", required_argument, 0, 'c' },
{ "memory", required_argument, 0, 'm' },
{ "storage", required_argument, 0, 's' },
{ "nic", optional_argument, 0, 'n' },
{ "args", required_argument, 0, 'a' },
{ 0, 0, 0, 0 }
};
int opt;
int index = 0;
while((opt = getopt_long(argc, argv, "c:m:s:n::a:", options, &index)) != -1) {
switch(opt) {
case 'c' :
if(!is_uint32(optarg)) goto failure;
vm.core_size = strtol(optarg, NULL, 0);
break;
case 'm' :
if(!is_uint32(optarg)) goto failure;
vm.memory_size = strtol(optarg, NULL, 16);
break;
case 's' :
if(!is_uint32(optarg)) goto failure;
vm.storage_size = strtol(optarg, NULL, 16);
break;
case 'n' :;
// Suboptions for NIC
enum {
EMPTY, MAC, DEV, IBUF, OBUF, IBAND, OBAND, HPAD, TPAD, POOL,
INHERITMAC, NOARP, PROMISC, BROADCAST, MULTICAST, MULTIQUEUE,
};
const char* token[] = {
[EMPTY] = "",
[MAC] = "mac",
[DEV] = "dev",
[IBUF] = "ibuf",
[OBUF] = "obuf",
[IBAND] = "iband",
[OBAND] = "oband",
[HPAD] = "hpad",
[TPAD] = "tpad",
[POOL] = "pool",
[INHERITMAC] = "inheritmac",
[NOARP] = "noarp",
[PROMISC] = "promisc",
[BROADCAST] = "broadcast",
[MULTICAST] = "multicast",
[MULTIQUEUE] = "multiqueue",
NULL,
};
// Default NIC configuration
NICSpec* nic = &vm.nics[vm.nic_count++];
nic->mac = 0;
nic->parent[0] = '\0';
nic->budget = NICSPEC_DEFAULT_BUDGET_SIZE;
nic->flags = NICSPEC_DEFAULT_FLAGS;
nic->rx_buffer_size = 1024;
nic->tx_buffer_size = 1024;
nic->rx_bandwidth = 1000000000; /* 1 GB */
nic->tx_bandwidth = 1000000000; /* 1 GB */
nic->padding_head = 32;
nic->padding_tail = 32;
nic->pool_size = 0x400000; /* 4 MB */
char* subopts = optarg;
while(optarg && *subopts != '\0') {
char* value = NULL;
int subopt_index = getsubopt(&subopts, (char* const*)token, &value);
if(subopt_index == -1) goto failure;
switch(subopt_index) {
case EMPTY:
break;
case MAC:
if(!is_uint64(value)) goto failure;
nic->mac = strtoll(value, NULL, 16);
break;
case DEV:
strncpy(nic->parent, value, MAX_NIC_NAME_LEN);
break;
case IBUF:
if(!is_uint32(value)) goto failure;
nic->rx_buffer_size = strtoul(value, NULL, 0);
break;
case OBUF:
if(!is_uint32(value)) goto failure;
nic->tx_buffer_size = strtoul(value, NULL, 0);
break;
case IBAND:
if(!is_uint64(value)) goto failure;
nic->rx_bandwidth = strtoull(value, NULL, 0);
break;
case OBAND:
if(!is_uint64(value)) goto failure;
nic->tx_bandwidth = strtoull(value, NULL, 0);
break;
case HPAD:
if(!is_uint8(value)) goto failure;
nic->padding_head = strtoul(value, NULL, 0);
break;
case TPAD:
if(!is_uint8(value)) goto failure;
nic->padding_tail = strtoul(value, NULL, 0);
break;
case POOL:
if(!is_uint32(value)) goto failure;
nic->pool_size = strtoul(value, NULL, 16);
break;
case INHERITMAC:
if(!strcmp("on", value)) {
nic->flags |= NICSPEC_F_INHERITMAC;
} else if(!strcmp("off", value)) {
nic->flags |= NICSPEC_F_INHERITMAC;
nic->flags ^= NICSPEC_F_INHERITMAC;
} else goto failure;
break;
case NOARP:
if(!strcmp("on", value)) {
nic->flags |= NICSPEC_F_NOARP;
} else if(!strcmp("off", value)) {
nic->flags |= NICSPEC_F_NOARP;
nic->flags ^= NICSPEC_F_NOARP;
} else goto failure;
break;
case PROMISC:
if(!strcmp("on", value)) {
nic->flags |= NICSPEC_F_PROMISC;
} else if(!strcmp("off", value)) {
nic->flags |= NICSPEC_F_PROMISC;
nic->flags ^= NICSPEC_F_PROMISC;
} else goto failure;
break;
case BROADCAST:
if(!strcmp("on", value)) {
nic->flags |= NICSPEC_F_BROADCAST;
} else if(!strcmp("off", value)) {
nic->flags |= NICSPEC_F_BROADCAST;
nic->flags ^= NICSPEC_F_BROADCAST;
} else goto failure;
break;
case MULTICAST:
if(!strcmp("on", value)) {
nic->flags |= NICSPEC_F_MULTICAST;
} else if(!strcmp("off", value)) {
nic->flags |= NICSPEC_F_MULTICAST;
nic->flags ^= NICSPEC_F_MULTICAST;
} else goto failure;
break;
case MULTIQUEUE:
if(!strcmp("on", value)) {
nic->flags |= NICSPEC_F_MULTIQUEUE;
} else if(!strcmp("off", value)) {
nic->flags |= NICSPEC_F_MULTIQUEUE;
nic->flags ^= NICSPEC_F_MULTIQUEUE;
} else goto failure;
break;
default:
goto failure;
break;
}
}
break;
case 'a' :
vm.argv[vm.argc++] = strdup(optarg);
if(errno == ENOMEM) goto failure;
break;
default:
goto failure;
}
}
rpc_vm_create(rpc, &vm, callback_vm_create, NULL);
return 0;
failure:
printf("Malformed input were given\n");
help();
exit(EXIT_FAILURE);
}
