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vif.c
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vif.c
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/*
* vif.c -- 'vrouter' interface utility
*
* Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
*/
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <inttypes.h>
#include <getopt.h>
#include <stdbool.h>
#include <ctype.h>
#include <time.h>
#include <termios.h>
#include "vr_os.h"
#include <sys/types.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#if defined(__linux__)
#include <asm/types.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/if_ether.h>
#include <net/if.h>
#include <net/ethernet.h>
#include <netinet/ether.h>
#elif defined(__FreeBSD__)
#include <sys/ioctl.h>
#include <net/if.h>
#include <net/ethernet.h>
#endif
#include "vr_types.h"
#include "vr_message.h"
#include "vr_packet.h"
#include "vr_interface.h"
#include "vhost.h"
#include "vr_genetlink.h"
#include "nl_util.h"
#include "ini_parser.h"
#define LISTING_NUM_OF_LINE 3
#define MAX_OUTPUT_IF 32
#define SET_TIMEOUT_MS 1000
#define CORRECT_ERROR_CNT(cur_error_cnt_ptr, prev_error_cnt_ptr) \
if (*((uint64_t *) cur_error_cnt_ptr) < *((uint64_t *) prev_error_cnt_ptr)) { \
*((uint64_t *) cur_error_cnt_ptr) = *((uint64_t *) prev_error_cnt_ptr); }
#define COMPUTE_DIFFERENCE(new, old, counter, diff_time_ms) \
new->counter = ((new->counter - old->counter) * 1000)/diff_time_ms
#define VHOST_TYPE_STRING "vhost"
#define AGENT_TYPE_STRING "agent"
#define PHYSICAL_TYPE_STRING "physical"
#define VIRTUAL_TYPE_STRING "virtual"
#define XEN_LL_TYPE_STRING "xenll"
#define GATEWAY_TYPE_STRING "gateway"
#define VIRTUAL_VLAN_TYPE_STRING "virtual-vlan"
#define STATS_TYPE_STRING "stats"
#define MONITORING_TYPE_STRING "monitoring"
#define ETH_TRANSPORT_STRING "eth"
#define PMD_TRASPORT_STRING "pmd"
#define SOCKET_TRANSPORT_STRING "socket"
#define VIRTUAL_TRANSPORT_STRING "virtual"
static struct nl_client *cl;
static char flag_string[32], if_name[IFNAMSIZ];
static int if_kindex = -1, vrf_id, vr_ifindex = -1;
static int if_pmdindex = -1, vif_index = -1;
static bool need_xconnect_if = false;
static bool need_vif_id = false;
static int if_xconnect_kindex = -1;
static short vlan_id = -1;
static int vr_ifflags;
static unsigned int core = (unsigned)-1;
static int8_t vr_transport = 0;
static int add_set, create_set, get_set, list_set;
static int kindex_set, type_set, transport_set, help_set, set_set, vlan_set, dhcp_set;
static int vrf_set, mac_set, delete_set, policy_set, pmd_set, vindex_set, pci_set;
static int xconnect_set, vif_set, vhost_phys_set, core_set, rate_set;
static unsigned int vr_op, vr_if_type;
static bool dump_pending = false;
static bool vr_vrf_assign_dump = false;
static int dump_marker = -1, var_marker = -1;
static int platform;
static int8_t vr_ifmac[6];
static struct ether_addr *mac_opt;
static vr_interface_req prev_req[VR_MAX_INTERFACES];
static struct timeval last_time;
static bool first_rate_iter = false;
/*
* How many times we partially ignore function call vr_interface_req_process.
* For more information please read comment description for function:
* vr_interface_req_process
*/
static int ignore_number_interface = 0;
/*
* How many interfaces we will print/count in rate statistics
*/
static int print_number_interface = 0;
static void Usage(void);
static void list_header_print(void);
static void list_get_print(vr_interface_req *);
static void list_rate_print(vr_interface_req *);
static void rate_process(vr_interface_req *req, vr_interface_req *prev_req);
static void rate_stats_diff(vr_interface_req *, vr_interface_req *);
static void rate_stats(struct nl_client *, unsigned int);
static int is_stdin_hit();
static struct vr_util_flags flag_metadata[] = {
{VIF_FLAG_POLICY_ENABLED, "P", "Policy" },
{VIF_FLAG_XCONNECT, "X", "Cross Connect" },
{VIF_FLAG_SERVICE_IF, "S", "Service Chain" },
{VIF_FLAG_MIRROR_RX, "Mr", "Receive Mirror" },
{VIF_FLAG_MIRROR_TX, "Mt", "Transmit Mirror" },
{VIF_FLAG_TX_CSUM_OFFLOAD, "Tc", "Transmit Checksum Offload"},
{VIF_FLAG_L3_ENABLED, "L3", "Layer 3" },
{VIF_FLAG_L2_ENABLED, "L2", "Layer 2" },
{VIF_FLAG_DHCP_ENABLED, "D", "DHCP" },
{VIF_FLAG_VHOST_PHYS, "Vp", "Vhost Physical" },
{VIF_FLAG_PROMISCOUS, "Pr", "Promiscuous" },
{VIF_FLAG_NATIVE_VLAN_TAG, "Vnt", "Native Vlan Tagged"},
{VIF_FLAG_NO_ARP_PROXY, "Mnp", "No MAC Proxy" },
{VIF_FLAG_PMD, "Dpdk", "DPDK PMD Interface"},
{VIF_FLAG_FILTERING_OFFLOAD,"Rfl", "Receive Filtering Offload"},
{VIF_FLAG_MONITORED, "Mon", "Interface is Monitored"},
{VIF_FLAG_UNKNOWN_UC_FLOOD, "Uuf", "Unknown Unicast Flood"},
{VIF_FLAG_VLAN_OFFLOAD, "Vof", "VLAN insert/strip offload"},
{VIF_FLAG_DROP_NEW_FLOWS, "Df", "Drop New Flows"},
};
static char *
vr_get_if_type_string(int t)
{
switch (t) {
case VIF_TYPE_HOST:
return "Host";
case VIF_TYPE_AGENT:
return "Agent";
case VIF_TYPE_PHYSICAL:
return "Physical";
case VIF_TYPE_VIRTUAL:
return "Virtual";
case VIF_TYPE_XEN_LL_HOST:
return "XenLL";
case VIF_TYPE_GATEWAY:
return "Gateway";
case VIF_TYPE_STATS:
return "Stats";
case VIF_TYPE_VIRTUAL_VLAN:
return "Virtual(Vlan)";
case VIF_TYPE_MONITORING:
return "Monitoring";
default:
return "Invalid";
}
return NULL;
}
static unsigned int
vr_get_if_type(char *type_str)
{
if (!strncmp(type_str, VHOST_TYPE_STRING,
strlen(VHOST_TYPE_STRING)))
return VIF_TYPE_HOST;
else if (!strncmp(type_str, AGENT_TYPE_STRING,
strlen(AGENT_TYPE_STRING)))
return VIF_TYPE_AGENT;
else if (!strncmp(type_str, PHYSICAL_TYPE_STRING,
strlen(PHYSICAL_TYPE_STRING)))
return VIF_TYPE_PHYSICAL;
else if (!strncmp(type_str, VIRTUAL_VLAN_TYPE_STRING,
strlen(VIRTUAL_VLAN_TYPE_STRING)))
return VIF_TYPE_VIRTUAL_VLAN;
else if (!strncmp(type_str, VIRTUAL_TYPE_STRING,
strlen(VIRTUAL_TYPE_STRING)))
return VIF_TYPE_VIRTUAL;
else if (!strncmp(type_str, XEN_LL_TYPE_STRING,
strlen(XEN_LL_TYPE_STRING)))
return VIF_TYPE_XEN_LL_HOST;
else if (!strncmp(type_str, GATEWAY_TYPE_STRING,
strlen(GATEWAY_TYPE_STRING)))
return VIF_TYPE_GATEWAY;
else if (!strncmp(type_str, STATS_TYPE_STRING,
strlen(STATS_TYPE_STRING)))
return VIF_TYPE_STATS;
else if (!strncmp(type_str, MONITORING_TYPE_STRING,
strlen(MONITORING_TYPE_STRING)))
return VIF_TYPE_MONITORING;
else
Usage();
return 0;
}
static unsigned int
vr_get_if_transport(char *transport_str)
{
if (!strncmp(transport_str, ETH_TRANSPORT_STRING,
strlen(ETH_TRANSPORT_STRING)))
return VIF_TRANSPORT_ETH;
else if (!strncmp(transport_str, PMD_TRASPORT_STRING,
strlen(PMD_TRASPORT_STRING)))
return VIF_TRANSPORT_PMD;
else if (!strncmp(transport_str, VIRTUAL_TRANSPORT_STRING,
strlen(VIRTUAL_TRANSPORT_STRING)))
return VIF_TRANSPORT_VIRTUAL;
else if (!strncmp(transport_str, SOCKET_TRANSPORT_STRING,
strlen(SOCKET_TRANSPORT_STRING)))
return VIF_TRANSPORT_SOCKET;
else
Usage();
return 0;
}
static char *
vr_if_flags(int flags)
{
unsigned int i, array_size;
bzero(flag_string, sizeof(flag_string));
array_size = sizeof(flag_metadata) / sizeof(flag_metadata[0]);
for (i = 0; i < array_size; i++) {
if (flags & flag_metadata[i].vuf_flag)
strcat(flag_string, flag_metadata[i].vuf_flag_symbol);
}
return flag_string;
}
static void
vr_interface_print_header(void)
{
unsigned int i, array_size;
array_size = sizeof(flag_metadata) / sizeof(flag_metadata[0]);
printf("Vrouter Interface Table\n\n");
printf("Flags: ");
for (i = 0; i < array_size; i++) {
if (i) {
if (!(i % 4))
printf("\n ");
else
printf(", ");
}
printf("%s=%s", flag_metadata[i].vuf_flag_symbol,
flag_metadata[i].vuf_flag_string);
}
printf("\n\n");
return;
}
void
vr_vrf_assign_req_process(void *s)
{
vr_vrf_assign_req *req = (vr_vrf_assign_req *)s;
printf("%d:%d, ", req->var_vlan_id, req->var_vif_vrf);
var_marker = req->var_vlan_id;
return;
}
static void
vr_interface_print_head_space(void)
{
int i;
for (i = 0; i < 12; i++)
printf(" ");
return;
}
char *
vr_if_transport_string(vr_interface_req *req)
{
switch (req->vifr_transport) {
case VIF_TRANSPORT_VIRTUAL:
return "Virtual";
break;
case VIF_TRANSPORT_ETH:
return "Ethernet";
break;
case VIF_TRANSPORT_PMD:
return "PMD";
break;
case VIF_TRANSPORT_SOCKET:
return "Socket";
break;
default:
break;
}
return "Unknown";
}
static void
vr_interface_core_print(void)
{
if (core != (unsigned)-1) {
printf("Core %u ", core);
}
}
static void
vr_interface_nombufs_print(uint64_t nombufs)
{
if (nombufs)
printf(" no mbufs:%" PRId64, nombufs);
printf("\n");
}
static void
vr_interface_pbem_counters_print(const char *title, bool print_always,
uint64_t packets, uint64_t bytes, uint64_t errors,
uint64_t nombufs)
{
if (print_always || packets || bytes || errors) {
vr_interface_print_head_space();
vr_interface_core_print();
printf("%s packets:%" PRId64 " bytes:%" PRId64 " errors:%" PRId64,
title, packets, bytes, errors);
vr_interface_nombufs_print(nombufs);
}
}
static void
vr_interface_pesm_counters_print(const char *title, bool print_always,
uint64_t packets, uint64_t errors, uint64_t syscalls,
uint64_t nombufs)
{
if (print_always || packets || errors) {
vr_interface_print_head_space();
vr_interface_core_print();
printf("%s packets:%" PRId64 " errors:%" PRId64,
title, packets, errors);
if (syscalls)
printf(" syscalls:%" PRId64, syscalls);
vr_interface_nombufs_print(nombufs);
}
}
static void
vr_interface_pe_counters_print(const char *title, bool print_always,
uint64_t packets, uint64_t errors)
{
if (print_always || packets || errors) {
vr_interface_print_head_space();
vr_interface_core_print();
printf("%s packets:%" PRId64 " errors:%" PRId64 "\n",
title, packets, errors);
}
}
static void
vr_interface_e_per_lcore_counters_print(const char *title, bool print_always,
uint64_t *errors, uint32_t size)
{
unsigned int i;
vr_interface_print_head_space();
printf("%s errors to lcore", title);
for (i = 0; i < size; i++) {
printf(" %" PRId64 , errors[i]);
}
printf("\n");
}
static void
list_get_print(vr_interface_req *req)
{
char name[50] = {0};
int printed = 0;
unsigned int i;
uint16_t proto, port;
bool print_zero = false;
if (rate_set) {
print_zero = true;
}
printed = printf("vif%d/%d", req->vifr_rid, req->vifr_idx);
for (; printed < 12; printed++)
printf(" ");
if (req->vifr_flags & VIF_FLAG_PMD) {
printf("PMD: %d", req->vifr_os_idx);
} else if (platform == DPDK_PLATFORM) {
switch (req->vifr_type) {
case VIF_TYPE_PHYSICAL:
printf("PCI: ""%.4" PRIx16 ":%.2" PRIx8 ":%.2" PRIx8 ".%" PRIx8,
(uint16_t)(req->vifr_os_idx >> 16),
(uint8_t)(req->vifr_os_idx >> 8) & 0xFF,
(uint8_t)(req->vifr_os_idx >> 3) & 0x1F,
(uint8_t)(req->vifr_os_idx & 0x7));
break;
case VIF_TYPE_MONITORING:
printf("Monitoring: %s for vif%d/%d", req->vifr_name,
req->vifr_rid, req->vifr_os_idx);
break;
default:
if (req->vifr_name)
printf("%s: %s", vr_if_transport_string(req),
req->vifr_name);
break;
}
} else {
printf("OS: %s", req->vifr_os_idx ?
if_indextoname(req->vifr_os_idx, name): "NULL");
}
if (req->vifr_type == VIF_TYPE_PHYSICAL) {
if (req->vifr_speed >= 0) {
printf(" (Speed %d,", req->vifr_speed);
if (req->vifr_duplex >= 0)
printf(" Duplex %d", req->vifr_duplex);
printf(")");
}
} else if (req->vifr_type == VIF_TYPE_VIRTUAL_VLAN) {
printf(" Vlan(o/i)(,S): %d/%d", req->vifr_ovlan_id, req->vifr_vlan_id);
if (req->vifr_src_mac_size && req->vifr_src_mac)
printf(", "MAC_FORMAT, MAC_VALUE((uint8_t *)req->vifr_src_mac));
printf(" Bridge Index: %d", req->vifr_bridge_idx);
}
if (req->vifr_parent_vif_idx >= 0)
printf(" Parent:vif0/%d", req->vifr_parent_vif_idx);
printf("\n");
vr_interface_print_head_space();
printf("Type:%s HWaddr:"MAC_FORMAT" IPaddr:%x\n",
vr_get_if_type_string(req->vifr_type),
MAC_VALUE((uint8_t *)req->vifr_mac), req->vifr_ip);
vr_interface_print_head_space();
printf("Vrf:%d Flags:%s MTU:%d QOS:%d Ref:%d", req->vifr_vrf,
req->vifr_flags ? vr_if_flags(req->vifr_flags) : "NULL" ,
req->vifr_mtu, req->vifr_qos_map_index, req->vifr_ref_cnt);
if (req->vifr_flags & (VIF_FLAG_MIRROR_TX | VIF_FLAG_MIRROR_RX)) {
printf(" Mirror index %d\n", req->vifr_mir_id);
} else {
printf("\n");
}
if (platform == DPDK_PLATFORM) {
vr_interface_pbem_counters_print("RX device", print_zero,
req->vifr_dev_ipackets, req->vifr_dev_ibytes,
req->vifr_dev_ierrors, req->vifr_dev_inombufs);
vr_interface_pesm_counters_print("RX port ", print_zero,
req->vifr_port_ipackets, req->vifr_port_ierrors,
req->vifr_port_isyscalls, req->vifr_port_inombufs);
vr_interface_pe_counters_print("RX queue ", print_zero,
req->vifr_queue_ipackets, req->vifr_queue_ierrors);
vr_interface_e_per_lcore_counters_print("RX queue", print_zero,
req->vifr_queue_ierrors_to_lcore,
req->vifr_queue_ierrors_to_lcore_size);
}
vr_interface_pbem_counters_print("RX", true, req->vifr_ipackets,
req->vifr_ibytes, req->vifr_ierrors, 0);
vr_interface_pbem_counters_print("TX", true, req->vifr_opackets,
req->vifr_obytes, req->vifr_oerrors, 0);
if (platform == DPDK_PLATFORM) {
vr_interface_pe_counters_print("TX queue ", print_zero,
req->vifr_queue_opackets, req->vifr_queue_oerrors);
vr_interface_pesm_counters_print("TX port ", print_zero,
req->vifr_port_opackets, req->vifr_port_oerrors,
req->vifr_port_osyscalls, 0);
vr_interface_pbem_counters_print("TX device", print_zero,
req->vifr_dev_opackets, req->vifr_dev_obytes,
req->vifr_dev_oerrors, 0);
}
if (req->vifr_fat_flow_protocol_port_size) {
vr_interface_print_head_space();
printed = 0;
printed += printf("FatFlows (Protocol/Port): ");
for (i = 0; i < req->vifr_fat_flow_protocol_port_size; i++) {
proto = VIF_FAT_FLOW_PROTOCOL(req->vifr_fat_flow_protocol_port[i]);
port = VIF_FAT_FLOW_PORT(req->vifr_fat_flow_protocol_port[i]);
if (!proto) {
proto = port;
port = 0;
}
printed += printf("%d:", proto);
if (port) {
printed += printf("%d", port);
} else {
printed += printf("%c", '*');
}
if (i == (req->vifr_fat_flow_protocol_port_size - 1)) {
printf("\n");
} else if (printed > 68) {
printf("\n");
printed = 0;
vr_interface_print_head_space();
/* %10 corresponds to "FatFlows: " */
printed += printf("%10c", ' ');
} else {
printf(", ");
}
}
}
printf("\n");
if (get_set && req->vifr_flags & VIF_FLAG_SERVICE_IF) {
vr_vrf_assign_dump = true;
dump_pending = true;
printf("VRF table(vlan:vrf):\n");
vr_ifindex = req->vifr_idx;
}
return;
}
static void
list_header_print(void)
{
int printed = 0;
printed = printf("Interface name");
for (; printed < 30; printed++)
printf(" ");
printed = printf("VIF ID");
for (; printed < 30; printed++)
printf(" ");
printed = printf("RX");
for (; printed < 30; printed++)
printf(" ");
printed = printf("TX");
for (; printed < 30; printed++)
printf(" ");
printf("\n");
printed = strlen("Errors");
for (; printed < 30 * 2; printed++)
printf(" ");
printed = printf("Errors Packets");
for (; printed < 30; printed++)
printf(" ");
printf("Errors Packets");
printf("\n\n");
}
static void
list_rate_print(vr_interface_req *req)
{
int printed = 0;
uint64_t tx_errors = 0;
uint64_t rx_errors = 0;
unsigned int i = 0;
rx_errors = (req->vifr_dev_ierrors + req->vifr_port_ierrors + req->vifr_queue_ierrors
+ req->vifr_ierrors);
tx_errors = (req->vifr_dev_oerrors + req->vifr_port_oerrors + req->vifr_queue_oerrors
+ req->vifr_oerrors);
printed = printf("%s: %s", vr_get_if_type_string(req->vifr_type),
req->vifr_name);
for (; printed < 30; printed++)
printf(" ");
printed = printf("vif%d/%d", req->vifr_rid, req->vifr_idx);
for (; printed < 24; printed++)
printf(" ");
printed = printf("%-7"PRIu64 " %-7"PRIu64, rx_errors, req->vifr_ipackets);
for (; printed < 30; printed++)
printf(" ");
printed = printf("%-7"PRIu64 " %-7"PRIu64, tx_errors, req->vifr_opackets);
for (; printed < 25; printed++)
printf(" ");
printf("\n\n\n");
return;
}
static void
rate_process(vr_interface_req *req, vr_interface_req *prev_req)
{
vr_interface_req rate_req_temp = {0};
uint64_t *temp_prev_req_ptr = NULL;
if (first_rate_iter) {
temp_prev_req_ptr = prev_req->vifr_queue_ierrors_to_lcore;
*prev_req = *req;
prev_req->vifr_queue_ierrors_to_lcore = temp_prev_req_ptr;
memcpy(prev_req->vifr_queue_ierrors_to_lcore,
req->vifr_queue_ierrors_to_lcore,
req->vifr_queue_ierrors_to_lcore_size * sizeof(uint64_t));
rate_stats_diff(req, prev_req);
return;
}
rate_req_temp = *req;
rate_req_temp.vifr_queue_ierrors_to_lcore = calloc(VR_MAX_CPUS, sizeof(uint64_t));
if (!rate_req_temp.vifr_queue_ierrors_to_lcore) {
fprintf(stderr, "Fail, memory allocation. (%s:%d).", __FILE__ , __LINE__);
exit(1);
}
memcpy(rate_req_temp.vifr_queue_ierrors_to_lcore,
req->vifr_queue_ierrors_to_lcore,
req->vifr_queue_ierrors_to_lcore_size * sizeof(uint64_t));
rate_stats_diff(req, prev_req);
temp_prev_req_ptr = prev_req->vifr_queue_ierrors_to_lcore;
*prev_req = rate_req_temp;
prev_req->vifr_queue_ierrors_to_lcore = temp_prev_req_ptr;
memcpy(prev_req->vifr_queue_ierrors_to_lcore,
rate_req_temp.vifr_queue_ierrors_to_lcore,
rate_req_temp.vifr_queue_ierrors_to_lcore_size * sizeof(uint64_t));
if ((rate_req_temp.vifr_queue_ierrors_to_lcore)) {
free(rate_req_temp.vifr_queue_ierrors_to_lcore);
rate_req_temp.vifr_queue_ierrors_to_lcore = NULL;
}
}
/*
* The function is called by functions sandesh_decode.
* In case, when we have sent SANDESH_OP_DUMP (usually --list parameter) msg to nl_client,
* then sandesh_decode calls vr_interface_req_process in "loop".
* Variable dump_marker (dump_marker < next_interface.vif_id) sets which
* interface is successor.
*
* For SANDESH_OP_DUMP msg we SHOULD change variable dump_marker;
* Otherwise we can be in infinity loop.
*/
void
vr_interface_req_process(void *s)
{
vr_interface_req *req = (vr_interface_req *)s;
if (add_set)
vr_ifindex = req->vifr_idx;
if (!get_set && !list_set)
return;
if (rate_set) {
/* Compute for each "current" vif interfaces. */
rate_process(req, &prev_req[req->vifr_idx % VR_MAX_INTERFACES]);
if (list_set) {
/*
* We are in loop (which cannot be controlled by us)
* (see function comment)
*
* Ignores first interfaces outputs.
*/
if (ignore_number_interface > 0) {
ignore_number_interface--;
/*
* How many interface we should print
* Value of variable number_interface is computed:
* (get_terminal_lines - header_lines)/(lines_per_interface)
*/
} else if (print_number_interface >= 1) {
list_rate_print(req);
print_number_interface--;
}
/* Mandatory, otherwise we can be in infinity loop.*/
dump_marker = req->vifr_idx;
return;
}
}
list_get_print(req);
if (list_set){
dump_marker = req->vifr_idx;
}
return;
}
void
vr_response_process(void *s)
{
vr_response_common_process((vr_response *)s, &dump_pending);
return;
}
/*
* create vhost interface in linux
*/
static int
vhost_create(void)
{
int ret;
#if defined(__linux__)
struct vn_if vhost;
struct nl_response *resp;
memset(&vhost, 0, sizeof(vhost));
strncpy(vhost.if_name, if_name, sizeof(vhost.if_name) - 1);
strncpy(vhost.if_kind, VHOST_KIND, sizeof(vhost.if_kind) - 1);
memcpy(vhost.if_mac, vr_ifmac, sizeof(vhost.if_mac));
ret = nl_build_if_create_msg(cl, &vhost, 0);
if (ret)
return ret;
ret = nl_sendmsg(cl);
if (ret <= 0)
return ret;
if ((ret = nl_recvmsg(cl)) > 0) {
resp = nl_parse_reply(cl);
if (resp && resp->nl_op)
printf("%s\n", strerror(resp->nl_op));
}
#elif defined(__FreeBSD__)
struct ifreq ifr = { 0 };
int s;
int errsv;
s = socket(PF_LOCAL, SOCK_DGRAM, 0);
if (s < 0) {
ret = s;
errsv = errno;
fprintf(stderr, "vhost_create: Failed to open socket.\n");
goto ending;
}
strncpy(ifr.ifr_name, if_name, sizeof(ifr.ifr_name) - 1);
ret = ioctl(s, SIOCIFCREATE, &ifr);
if (ret < 0) {
errsv = errno;
fprintf(stderr, "vhost_create: Failed to create interface.\n");
goto ending;
}
if (mac_set) {
memcpy(ifr.ifr_addr.sa_data, vr_ifmac, ETHER_ADDR_LEN);
ifr.ifr_addr.sa_len = ETHER_ADDR_LEN;
ifr.ifr_addr.sa_family = AF_LOCAL;
ret = ioctl(s, SIOCSIFLLADDR, &ifr);
if (ret < 0) {
errsv = errno;
fprintf(stderr, "vhost_create: Failed to set MAC address.\n");
goto ending;
}
}
ending:
if (ret < 0)
fprintf(stderr, "vhost_create: %s.\n", strerror(errsv));
if (s >=0)
close(s);
#else
#error "Unsupported platform"
#endif
return ret;
}
static int
vr_intf_op(struct nl_client *cl, unsigned int op)
{
int ret, vrf;
bool dump = false;
if (create_set)
return vhost_create();
if ((op == SANDESH_OP_DUMP && !(rate_set)) ||
((op == SANDESH_OP_GET) && !(add_set) )) {
vr_interface_print_header();
} else if (rate_set) {
list_header_print();
}
op_retry:
switch (op) {
case SANDESH_OP_ADD:
if (set_set)
vrf = -1;
else
vrf = vrf_id;
if (if_kindex < 0)
if_kindex = 0;
if (vindex_set)
vr_ifindex = vif_index;
if (vr_ifindex < 0)
vr_ifindex = if_kindex;
ret = vr_send_interface_add(cl, 0, if_name, if_kindex, vr_ifindex,
if_xconnect_kindex, vr_if_type, vrf, vr_ifflags, vr_ifmac, vr_transport);
break;
case SANDESH_OP_DELETE:
ret = vr_send_interface_delete(cl, 0, if_name, vr_ifindex);
break;
case SANDESH_OP_GET:
/**
* Implementation of getting per-core vif statistics is based on this
* little trick to avoid making changes in how agent makes requests for
* statistics. From vRouter's and agent's point of view, request for
* stats for 0th core means a request for stats summed up for all the
* cores. So cores are enumerated starting with 1.
* Meanwhile, from user's point of view they are enumerated starting
* with 0 (e.g. vif --list --core 0 means 'vif statistics for the very
* first (0th) core'). This is how Linux enumerates CPUs, so it should
* be more intuitive for the user.
*
* Agent is not aware of possibility of asking for per-core stats. Its
* requests have vifr_core implicitly set to 0. So we need to make a
* conversion between those enumerating systems. The vif utility
* increments by 1 the core number user asked for. Then it is
* decremented back in vRouter.
*/
if (!vr_vrf_assign_dump) {
ret = vr_send_interface_get(cl, 0, vr_ifindex, if_kindex, core + 1);
} else {
dump = true;
ret = vr_send_vrf_assign_dump(cl, 0, vr_ifindex, var_marker);
}
break;
case SANDESH_OP_DUMP:
dump = true;
ret = vr_send_interface_dump(cl, 0, dump_marker, core + 1);
break;
}
if (ret < 0)
return ret;
ret = vr_recvmsg(cl, dump);
if (ret <= 0)
return ret;
if (set_set) {
ret = vr_send_vrf_assign_set(cl, 0, vr_ifindex, vlan_id, vrf_id);
if (ret < 0)
return ret;
return vr_recvmsg(cl, dump);
}
if (dump_pending) {
goto op_retry;
}
return 0;
}
static void
Usage()
{
printf("Usage: vif [--create <intf_name> --mac <mac>]\n");
printf("\t [--add <intf_name> --mac <mac> --vrf <vrf>\n");
printf("\t \t--type [vhost|agent|physical|virtual|monitoring]\n");
printf("\t \t--transport [eth|pmd|virtual|socket]\n");
printf("\t \t--xconnect <physical interface name>\n");
printf("\t \t--policy, --vhost-phys, --dhcp-enable]\n");
printf("\t \t--vif <vif ID> --id <intf_id> --pmd --pci]\n");
printf("\t [--delete <intf_id>]\n");
printf("\t [--get <intf_id>][--kernel][--core <core number>][--rate]\n");
printf("\t [--set <intf_id> --vlan <vlan_id> --vrf <vrf_id>]\n");
printf("\t [--list][--core <core number>][--rate]\n");
printf("\t [--help]\n");
exit(0);
}
enum if_opt_index {
ADD_OPT_INDEX,
CREATE_OPT_INDEX,
GET_OPT_INDEX,
RATE_OPT_INDEX,
LIST_OPT_INDEX,
VRF_OPT_INDEX,
MAC_OPT_INDEX,
DELETE_OPT_INDEX,
POLICY_OPT_INDEX,
PMD_OPT_INDEX,
PCI_OPT_INDEX,
KINDEX_OPT_INDEX,
TYPE_OPT_INDEX,
TRANSPORT_OPT_INDEX,
SET_OPT_INDEX,
VLAN_OPT_INDEX,
XCONNECT_OPT_INDEX,
VIF_OPT_INDEX,
DHCP_OPT_INDEX,
VHOST_PHYS_OPT_INDEX,
HELP_OPT_INDEX,
VINDEX_OPT_INDEX,
CORE_OPT_INDEX,
MAX_OPT_INDEX
};
static struct option long_options[] = {
[ADD_OPT_INDEX] = {"add", required_argument, &add_set, 1},
[CREATE_OPT_INDEX] = {"create", required_argument, &create_set, 1},
[GET_OPT_INDEX] = {"get", required_argument, &get_set, 1},
[RATE_OPT_INDEX] = {"rate", no_argument, &rate_set, 1},
[LIST_OPT_INDEX] = {"list", no_argument, &list_set, 1},
[VRF_OPT_INDEX] = {"vrf", required_argument, &vrf_set, 1},
[MAC_OPT_INDEX] = {"mac", required_argument, &mac_set, 1},
[DELETE_OPT_INDEX] = {"delete", required_argument, &delete_set, 1},
[POLICY_OPT_INDEX] = {"policy", no_argument, &policy_set, 1},
[PMD_OPT_INDEX] = {"pmd", no_argument, &pmd_set, 1},
[PCI_OPT_INDEX] = {"pci", no_argument, &pci_set, 1},
[KINDEX_OPT_INDEX] = {"kernel", no_argument, &kindex_set, 1},
[TYPE_OPT_INDEX] = {"type", required_argument, &type_set, 1},
[TRANSPORT_OPT_INDEX] = {"transport", required_argument, &transport_set, 1},
[SET_OPT_INDEX] = {"set", required_argument, &set_set, 1},
[VLAN_OPT_INDEX] = {"vlan", required_argument, &vlan_set, 1},
[VHOST_PHYS_OPT_INDEX] = {"vhost-phys", no_argument, &vhost_phys_set, 1},
[XCONNECT_OPT_INDEX] = {"xconnect", required_argument, &xconnect_set, 1},
[VIF_OPT_INDEX] = {"vif", required_argument, &vif_set, 1},
[DHCP_OPT_INDEX] = {"dhcp-enable", no_argument, &dhcp_set, 1},
[HELP_OPT_INDEX] = {"help", no_argument, &help_set, 1},
[VINDEX_OPT_INDEX] = {"id", required_argument, &vindex_set, 1},
[CORE_OPT_INDEX] = {"core", required_argument, &core_set, 1},
[MAX_OPT_INDEX] = { NULL, 0, NULL, 0},
};
/* Safer than raw strtoul call that can segment fault with NULL strings.
sets errno if any addtional errors are detected.*/
static unsigned long
safer_strtoul(const char *nptr, char **endptr, int base)
{
if (nptr == NULL) {
errno = EINVAL;
return 0;
} else {
return strtoul(nptr, endptr, base);
}
}
static void
parse_long_opts(int option_index, char *opt_arg)
{
errno = 0;
if (!*(long_options[option_index].flag))