int TunManager::getLinkRespParser(const struct sockaddr_nl *who,
struct nlmsghdr *n,
void *arg) {
// only cares about RTM_NEWLINK
if (n->nlmsg_type != RTM_NEWLINK) {
return 0;
}
struct ifinfomsg *ifi = static_cast<struct ifinfomsg *>(NLMSG_DATA(n));
struct rtattr *tb[IFLA_MAX + 1];
int len = n->nlmsg_len;
len -= NLMSG_LENGTH(sizeof(*ifi));
if (len < 0) {
throw FbossError("Wrong length for RTM_GETLINK response ", len, " vs ",
NLMSG_LENGTH(sizeof(*ifi)));
}
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
if (tb[IFLA_IFNAME] == nullptr) {
throw FbossError("Device @ index ", static_cast<int>(ifi->ifi_index),
" does not have a nmae");
}
const auto name = rta_getattr_str(tb[IFLA_IFNAME]);
// match the interface name against intfPrefix
if (!TunIntf::isTunIntf(name)) {
VLOG(3) << "Ignore interface " << name
<< " because it is not a tun interface";
return 0;
}
// base on the name, get the router ID
auto rid = TunIntf::getRidFromName(name);
TunManager *mgr = static_cast<TunManager *>(arg);
mgr->addIntf(rid, std::string(name), ifi->ifi_index);
return 0;
}
static int rtnl_linkinfo_parse(struct rtattr *rta)
{
int index = -1;
const char *kind;
struct rtattr *linkinfo[IFLA_INFO_MAX];
struct rtattr *bond[IFLA_BOND_MAX];
if (rtnl_nested_rtattr_parse(linkinfo, IFLA_INFO_MAX, rta) < 0)
return -1;
if (linkinfo[IFLA_INFO_KIND]) {
kind = rta_getattr_str(linkinfo[IFLA_INFO_KIND]);
if (kind && !strncmp(kind, "bond", 4) &&
linkinfo[IFLA_INFO_DATA]) {
if (rtnl_nested_rtattr_parse(bond, IFLA_BOND_MAX,
linkinfo[IFLA_INFO_DATA]) < 0)
return -1;
if (bond[IFLA_BOND_ACTIVE_SLAVE]) {
index = rta_getattr_u32(bond[IFLA_BOND_ACTIVE_SLAVE]);
}
}
}
return index;
}
static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
{
int qlen;
if (tb[IFLA_TXQLEN])
qlen = *(int *)RTA_DATA(tb[IFLA_TXQLEN]);
else {
struct ifreq ifr;
int s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0)
return;
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
fprintf(f, "ioctl(SIOCGIFTXQLEN) failed: %s\n", strerror(errno));
close(s);
return;
}
close(s);
qlen = ifr.ifr_qlen;
}
if (qlen)
fprintf(f, "qlen %d", qlen);
}
static int bpf_print_opt(struct action_util *au, FILE *f, struct rtattr *arg)
{
struct rtattr *tb[TCA_ACT_BPF_MAX + 1];
struct tc_act_bpf *parm;
SPRINT_BUF(action_buf);
if (arg == NULL)
return -1;
parse_rtattr_nested(tb, TCA_ACT_BPF_MAX, arg);
if (!tb[TCA_ACT_BPF_PARMS]) {
fprintf(f, "[NULL bpf parameters]");
return -1;
}
parm = RTA_DATA(tb[TCA_ACT_BPF_PARMS]);
fprintf(f, "bpf ");
if (tb[TCA_ACT_BPF_NAME])
fprintf(f, "%s ", rta_getattr_str(tb[TCA_ACT_BPF_NAME]));
else if (tb[TCA_ACT_BPF_FD])
fprintf(f, "pfd %u ", rta_getattr_u32(tb[TCA_ACT_BPF_FD]));
if (tb[TCA_ACT_BPF_OPS] && tb[TCA_ACT_BPF_OPS_LEN]) {
bpf_print_ops(f, tb[TCA_ACT_BPF_OPS],
rta_getattr_u16(tb[TCA_ACT_BPF_OPS_LEN]));
fprintf(f, " ");
}
fprintf(f, "default-action %s\n", action_n2a(parm->action, action_buf,
sizeof(action_buf)));
fprintf(f, "\tindex %d ref %d bind %d", parm->index, parm->refcnt,
parm->bindcnt);
if (show_stats) {
if (tb[TCA_ACT_BPF_TM]) {
struct tcf_t *tm = RTA_DATA(tb[TCA_ACT_BPF_TM]);
print_tm(f, tm);
}
}
fprintf(f, "\n ");
return 0;
}
const char *get_ifname_rta(int ifindex, const struct rtattr *rta)
{
const char *name;
if (rta) {
name = rta_getattr_str(rta);
} else {
fprintf(stderr,
"BUG: device with ifindex %d has nil ifname\n",
ifindex);
name = ll_idx_n2a(ifindex);
}
if (check_ifname(name))
return NULL;
return name;
}
static int fw_print_opt(struct filter_util *qu, FILE *f, struct rtattr *opt, __u32 handle)
{
struct rtattr *tb[TCA_FW_MAX+1];
if (opt == NULL)
return 0;
parse_rtattr_nested(tb, TCA_FW_MAX, opt);
if (handle || tb[TCA_FW_MASK]) {
__u32 mark = 0, mask = 0;
if(handle)
mark = handle;
if(tb[TCA_FW_MASK] &&
(mask = rta_getattr_u32(tb[TCA_FW_MASK])) != 0xFFFFFFFF)
fprintf(f, "handle 0x%x/0x%x ", mark, mask);
else
fprintf(f, "handle 0x%x ", handle);
}
if (tb[TCA_FW_CLASSID]) {
SPRINT_BUF(b1);
fprintf(f, "classid %s ", sprint_tc_classid(rta_getattr_u32(tb[TCA_FW_CLASSID]), b1));
}
if (tb[TCA_FW_POLICE])
tc_print_police(f, tb[TCA_FW_POLICE]);
if (tb[TCA_FW_INDEV]) {
struct rtattr *idev = tb[TCA_FW_INDEV];
fprintf(f, "input dev %s ",rta_getattr_str(idev));
}
if (tb[TCA_FW_ACT]) {
fprintf(f, "\n");
tc_print_action(f, tb[TCA_FW_ACT]);
}
return 0;
}
static int get_response(struct nlmsghdr *n, void *arg)
{
struct genlmsghdr *ghdr;
struct l2tp_data *data = arg;
struct l2tp_parm *p = &data->config;
struct rtattr *attrs[L2TP_ATTR_MAX + 1];
struct rtattr *nla_stats;
int len;
/* Validate message and parse attributes */
if (n->nlmsg_type == NLMSG_ERROR)
return -EBADMSG;
ghdr = NLMSG_DATA(n);
len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ghdr));
if (len < 0)
return -1;
parse_rtattr(attrs, L2TP_ATTR_MAX, (void *)ghdr + GENL_HDRLEN, len);
if (attrs[L2TP_ATTR_PW_TYPE])
p->pw_type = rta_getattr_u16(attrs[L2TP_ATTR_PW_TYPE]);
if (attrs[L2TP_ATTR_ENCAP_TYPE])
p->encap = rta_getattr_u16(attrs[L2TP_ATTR_ENCAP_TYPE]);
if (attrs[L2TP_ATTR_OFFSET])
p->offset = rta_getattr_u16(attrs[L2TP_ATTR_OFFSET]);
if (attrs[L2TP_ATTR_DATA_SEQ])
p->data_seq = rta_getattr_u16(attrs[L2TP_ATTR_DATA_SEQ]);
if (attrs[L2TP_ATTR_CONN_ID])
p->tunnel_id = rta_getattr_u32(attrs[L2TP_ATTR_CONN_ID]);
if (attrs[L2TP_ATTR_PEER_CONN_ID])
p->peer_tunnel_id = rta_getattr_u32(attrs[L2TP_ATTR_PEER_CONN_ID]);
if (attrs[L2TP_ATTR_SESSION_ID])
p->session_id = rta_getattr_u32(attrs[L2TP_ATTR_SESSION_ID]);
if (attrs[L2TP_ATTR_PEER_SESSION_ID])
p->peer_session_id = rta_getattr_u32(attrs[L2TP_ATTR_PEER_SESSION_ID]);
if (attrs[L2TP_ATTR_L2SPEC_TYPE])
p->l2spec_type = rta_getattr_u8(attrs[L2TP_ATTR_L2SPEC_TYPE]);
if (attrs[L2TP_ATTR_L2SPEC_LEN])
p->l2spec_len = rta_getattr_u8(attrs[L2TP_ATTR_L2SPEC_LEN]);
p->udp_csum = !!attrs[L2TP_ATTR_UDP_CSUM];
if (attrs[L2TP_ATTR_COOKIE])
memcpy(p->cookie, RTA_DATA(attrs[L2TP_ATTR_COOKIE]),
p->cookie_len = RTA_PAYLOAD(attrs[L2TP_ATTR_COOKIE]));
if (attrs[L2TP_ATTR_PEER_COOKIE])
memcpy(p->peer_cookie, RTA_DATA(attrs[L2TP_ATTR_PEER_COOKIE]),
p->peer_cookie_len = RTA_PAYLOAD(attrs[L2TP_ATTR_PEER_COOKIE]));
p->recv_seq = !!attrs[L2TP_ATTR_RECV_SEQ];
p->send_seq = !!attrs[L2TP_ATTR_SEND_SEQ];
if (attrs[L2TP_ATTR_RECV_TIMEOUT])
p->reorder_timeout = rta_getattr_u64(attrs[L2TP_ATTR_RECV_TIMEOUT]);
if (attrs[L2TP_ATTR_IP_SADDR]) {
p->local_ip.family = AF_INET;
p->local_ip.data[0] = rta_getattr_u32(attrs[L2TP_ATTR_IP_SADDR]);
p->local_ip.bytelen = 4;
p->local_ip.bitlen = -1;
}
if (attrs[L2TP_ATTR_IP_DADDR]) {
p->peer_ip.family = AF_INET;
p->peer_ip.data[0] = rta_getattr_u32(attrs[L2TP_ATTR_IP_DADDR]);
p->peer_ip.bytelen = 4;
p->peer_ip.bitlen = -1;
}
if (attrs[L2TP_ATTR_IP6_SADDR]) {
p->local_ip.family = AF_INET6;
memcpy(&p->local_ip.data, RTA_DATA(attrs[L2TP_ATTR_IP6_SADDR]),
p->local_ip.bytelen = 16);
p->local_ip.bitlen = -1;
}
if (attrs[L2TP_ATTR_IP6_DADDR]) {
p->peer_ip.family = AF_INET6;
memcpy(&p->peer_ip.data, RTA_DATA(attrs[L2TP_ATTR_IP6_DADDR]),
p->peer_ip.bytelen = 16);
p->peer_ip.bitlen = -1;
}
if (attrs[L2TP_ATTR_UDP_SPORT])
p->local_udp_port = rta_getattr_u16(attrs[L2TP_ATTR_UDP_SPORT]);
if (attrs[L2TP_ATTR_UDP_DPORT])
p->peer_udp_port = rta_getattr_u16(attrs[L2TP_ATTR_UDP_DPORT]);
if (attrs[L2TP_ATTR_MTU])
p->mtu = rta_getattr_u16(attrs[L2TP_ATTR_MTU]);
if (attrs[L2TP_ATTR_IFNAME])
p->ifname = rta_getattr_str(attrs[L2TP_ATTR_IFNAME]);
nla_stats = attrs[L2TP_ATTR_STATS];
if (nla_stats) {
struct rtattr *tb[L2TP_ATTR_STATS_MAX + 1];
parse_rtattr_nested(tb, L2TP_ATTR_STATS_MAX, nla_stats);
if (tb[L2TP_ATTR_TX_PACKETS])
data->stats.data_tx_packets = rta_getattr_u64(tb[L2TP_ATTR_TX_PACKETS]);
if (tb[L2TP_ATTR_TX_BYTES])
data->stats.data_tx_bytes = rta_getattr_u64(tb[L2TP_ATTR_TX_BYTES]);
if (tb[L2TP_ATTR_TX_ERRORS])
data->stats.data_tx_errors = rta_getattr_u64(tb[L2TP_ATTR_TX_ERRORS]);
if (tb[L2TP_ATTR_RX_PACKETS])
data->stats.data_rx_packets = rta_getattr_u64(tb[L2TP_ATTR_RX_PACKETS]);
if (tb[L2TP_ATTR_RX_BYTES])
data->stats.data_rx_bytes = rta_getattr_u64(tb[L2TP_ATTR_RX_BYTES]);
if (tb[L2TP_ATTR_RX_ERRORS])
data->stats.data_rx_errors = rta_getattr_u64(tb[L2TP_ATTR_RX_ERRORS]);
if (tb[L2TP_ATTR_RX_SEQ_DISCARDS])
data->stats.data_rx_oos_discards = rta_getattr_u64(tb[L2TP_ATTR_RX_SEQ_DISCARDS]);
if (tb[L2TP_ATTR_RX_OOS_PACKETS])
data->stats.data_rx_oos_packets = rta_getattr_u64(tb[L2TP_ATTR_RX_OOS_PACKETS]);
}
return 0;
}
int print_link(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) {
struct ndmsg *r = NLMSG_DATA(n);
int len = n->nlmsg_len;
struct rtattr *ifattr[IFLA_MAX+1];
struct rtattr *ifinfo[IFLA_INFO_MAX+1];
struct rtattr *ifgreo[IFLA_GRE_MAX+1];
const char *ifname;
const char *kind;
int link=0;
int tunid=0;
struct in_addr sip,dip;
uint8_t ttl=0,tos=0;
struct ifinfomsg *ifi;
sip.s_addr=dip.s_addr=htonl(0);
if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK) {
fprintf(stderr, "Not RTM_xxxLINK: %08x %08x %08x\n", n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
return 0;
}
len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0) {
fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
return -1;
}
ifi=(void *)r;
parse_rtattr(ifattr, IFLA_MAX, IFLA_RTA(r), n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
if (ifattr[IFLA_IFNAME])
ifname=rta_getattr_str(ifattr[IFLA_IFNAME]);
else
ifname="";
if (ifattr[IFLA_LINKINFO])
parse_rtattr(ifinfo, IFLA_INFO_MAX, (void *)rta_getattr_str(ifattr[IFLA_LINKINFO]), ifattr[IFLA_LINKINFO]->rta_len);
else
memset(ifinfo,0,sizeof ifinfo);
if (ifinfo[IFLA_INFO_KIND])
kind=rta_getattr_str(ifinfo[IFLA_INFO_KIND]);
else
kind="";
if (!strcmp(kind,"eoip") && ifinfo[IFLA_INFO_DATA]) {
char ts[IFNAMSIZ],td[IFNAMSIZ];
parse_rtattr(ifgreo, IFLA_GRE_MAX, (void *)rta_getattr_str(ifinfo[IFLA_INFO_DATA]), ifinfo[IFLA_INFO_DATA]->rta_len);
if (ifgreo[IFLA_GRE_LINK])
link=rta_getattr_u32(ifgreo[IFLA_GRE_LINK]);
if (ifgreo[IFLA_GRE_TOS])
tos=rta_getattr_u8(ifgreo[IFLA_GRE_TOS]);
if (ifgreo[IFLA_GRE_TTL])
ttl=rta_getattr_u8(ifgreo[IFLA_GRE_TTL]);
if (ifgreo[IFLA_GRE_LOCAL])
sip.s_addr=rta_getattr_u32(ifgreo[IFLA_GRE_LOCAL]);
if (ifgreo[IFLA_GRE_REMOTE])
dip.s_addr=rta_getattr_u32(ifgreo[IFLA_GRE_REMOTE]);
if (ifgreo[IFLA_GRE_IKEY])
tunid=rta_getattr_u32(ifgreo[IFLA_GRE_IKEY]);
strcpy(ts,inet_ntoa(sip));
strcpy(td,inet_ntoa(dip));
printf("%d: %s@%d: link/%s %s remote %s tunnel-id %d ttl %d tos %d\n",ifi->ifi_index,ifname,link,kind,ts,td,tunid,ttl,tos);
}
return 0;
}
int print_qdisc(const struct sockaddr_nl *who,
struct nlmsghdr *n,
void *arg)
{
FILE *fp = (FILE *)arg;
struct tcmsg *t = NLMSG_DATA(n);
int len = n->nlmsg_len;
struct rtattr *tb[TCA_MAX+1];
struct qdisc_util *q;
char abuf[256];
if (n->nlmsg_type != RTM_NEWQDISC && n->nlmsg_type != RTM_DELQDISC) {
fprintf(stderr, "Not a qdisc\n");
return 0;
}
len -= NLMSG_LENGTH(sizeof(*t));
if (len < 0) {
fprintf(stderr, "Wrong len %d\n", len);
return -1;
}
if (filter_ifindex && filter_ifindex != t->tcm_ifindex)
return 0;
memset(tb, 0, sizeof(tb));
parse_rtattr(tb, TCA_MAX, TCA_RTA(t), len);
if (tb[TCA_KIND] == NULL) {
fprintf(stderr, "print_qdisc: NULL kind\n");
return -1;
}
if (n->nlmsg_type == RTM_DELQDISC)
fprintf(fp, "deleted ");
fprintf(fp, "qdisc %s %x: ", rta_getattr_str(tb[TCA_KIND]), t->tcm_handle>>16);
if (filter_ifindex == 0)
fprintf(fp, "dev %s ", ll_index_to_name(t->tcm_ifindex));
if (t->tcm_parent == TC_H_ROOT)
fprintf(fp, "root ");
else if (t->tcm_parent) {
print_tc_classid(abuf, sizeof(abuf), t->tcm_parent);
fprintf(fp, "parent %s ", abuf);
}
if (t->tcm_info != 1) {
fprintf(fp, "refcnt %d ", t->tcm_info);
}
/* pfifo_fast is generic enough to warrant the hardcoding --JHS */
if (0 == strcmp("pfifo_fast", RTA_DATA(tb[TCA_KIND])))
q = get_qdisc_kind("prio");
else
q = get_qdisc_kind(RTA_DATA(tb[TCA_KIND]));
if (tb[TCA_OPTIONS]) {
if (q)
q->print_qopt(q, fp, tb[TCA_OPTIONS]);
else
fprintf(fp, "[cannot parse qdisc parameters]");
}
fprintf(fp, "\n");
if (show_details && tb[TCA_STAB]) {
print_size_table(fp, " ", tb[TCA_STAB]);
fprintf(fp, "\n");
}
if (show_stats) {
struct rtattr *xstats = NULL;
if (tb[TCA_STATS] || tb[TCA_STATS2] || tb[TCA_XSTATS]) {
print_tcstats_attr(fp, tb, " ", &xstats);
fprintf(fp, "\n");
}
if (q && xstats && q->print_xstats) {
q->print_xstats(q, fp, xstats);
fprintf(fp, "\n");
}
}
fflush(fp);
return 0;
}
static int
netl_handler(struct netl_handle *h,
pktj_unused(struct sockaddr_nl *nladdr),
struct nlmsghdr *hdr, void *args)
{
int len = hdr->nlmsg_len;
switch (hdr->nlmsg_type) {
// TODO RTM_SETLINK
case RTM_NEWLINK:
case RTM_DELLINK:
{
struct ifinfomsg *ifi = NLMSG_DATA(hdr);
struct rtattr *rta_tb[IFLA_MAX + 1];
struct ether_addr lladdr;
int ifid = ifi->ifi_index;
int mtu = -1;
const char *ifname = "";
uint16_t vlanid = 0;
oper_state_t state = LINK_UNKNOWN;
link_action_t action = LINK_ADD;
len -= NLMSG_LENGTH(sizeof(*ifi));
if (len < 0) {
// incomplete message
return -1;
}
parse_rtattr_flags(rta_tb, IFLA_MAX, IFLA_RTA(ifi), len, 0);
if (ifi->ifi_type != ARPHRD_ETHER)
return 0; // This is not ethernet
if (rta_tb[IFLA_IFNAME] == NULL)
return -1; // There should be a name, this is a bug
if (hdr->nlmsg_type == RTM_DELLINK)
action = LINK_DELETE;
if (rta_tb[IFLA_MTU])
mtu = *(int *) RTA_DATA(rta_tb[IFLA_MTU]);
if (rta_tb[IFLA_IFNAME])
ifname = rta_getattr_str(rta_tb[IFLA_IFNAME]);
if (rta_tb[IFLA_OPERSTATE])
state = rta_getattr_u8(rta_tb[IFLA_OPERSTATE]);
if (rta_tb[IFLA_ADDRESS])
memcpy(&lladdr.addr_bytes, RTA_DATA(rta_tb[IFLA_ADDRESS]),
sizeof(lladdr.addr_bytes));
if (rta_tb[IFLA_LINKINFO]) {
struct rtattr *linkinfo[IFLA_INFO_MAX + 1];
parse_rtattr_nested(linkinfo, IFLA_INFO_MAX,
rta_tb[IFLA_LINKINFO]);
if (linkinfo[IFLA_INFO_KIND]) {
char *kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);
//XXX only handle vlan type for now
if (!strcmp(kind, "vlan")) {
vlanid = get_vlan_id(linkinfo);
} else {
//TODO receive an IF without vlan id
}
}
}
if (h->cb.link != NULL) {
h->cb.link(action, ifid, &lladdr, mtu,
ifname, state, vlanid, args);
}
}
break;
}
if (hdr->nlmsg_type == RTM_NEWADDR || hdr->nlmsg_type == RTM_DELADDR) {
//struct if_rtattrs attrs;
struct rtattr *rta_tb[IFA_MAX + 1];
struct ifaddrmsg *ifa = NLMSG_DATA(hdr);
//unsigned int ifa_flags;
unsigned char buf_addr[sizeof(struct in6_addr)];
addr_action_t action;
len -= NLMSG_LENGTH(sizeof(*ifa));
if (len < 0) {
// incomplete message
return -1;
}
if (hdr->nlmsg_type == RTM_NEWADDR)
action = ADDR_ADD;
else if (hdr->nlmsg_type == RTM_DELADDR)
action = ADDR_DELETE;
else
return -1;
parse_rtattr_flags(rta_tb, IFA_MAX, IFA_RTA(ifa), len, 0);
//ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
if (!rta_tb[IFA_LOCAL])
rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
if (!rta_tb[IFA_ADDRESS])
rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
if (rta_tb[IFA_LOCAL]) {
//we may optimize by passing directly RTA_DATA(rta_tb[IFA_LOCAL]) to the cb
memcpy(buf_addr, RTA_DATA(rta_tb[IFA_LOCAL]),
RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
}
switch (ifa->ifa_family) {
case AF_INET:
if (h->cb.addr4 != NULL) {
h->cb.addr4(action, ifa->ifa_index,
(struct in_addr *) buf_addr,
ifa->ifa_prefixlen, args);
}
break;
case AF_INET6:
if (h->cb.addr6 != NULL) {
h->cb.addr6(action, ifa->ifa_index,
(struct in6_addr *) buf_addr,
ifa->ifa_prefixlen, args);
}
break;
default:
//only handling IP
return -1;
}
}
if (hdr->nlmsg_type == RTM_NEWROUTE || hdr->nlmsg_type == RTM_DELROUTE) {
struct rtattr *tb[RTA_MAX + 1];
struct rtmsg *r = NLMSG_DATA(hdr);
//__u32 table;
len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0) {
// incomplete message
return -1;
}
if (r->rtm_family != RTNL_FAMILY_IPMR &&
r->rtm_family != RTNL_FAMILY_IP6MR) {
// This is an unicast route, no interest for multicast
route_action_t action;
if (hdr->nlmsg_type == RTM_NEWROUTE)
action = ROUTE_ADD;
else
action = ROUTE_DELETE;
parse_rtattr_flags(tb, RTA_MAX, RTM_RTA(r), len, 0);
//table = rtm_get_table(r, tb);
switch(r->rtm_type) {
case RTN_UNICAST:
if (!tb[RTA_DST])
return 0;
if (!tb[RTA_GATEWAY])
return 0;
case RTN_BLACKHOLE:
break;
default:
return 0;
}
switch (r->rtm_family) {
case AF_INET:
if (h->cb.route4 != NULL) {
h->cb.route4(r, action, RTA_DATA(tb[RTA_DST]),
r->rtm_dst_len, RTA_DATA(tb[RTA_GATEWAY]),
r->rtm_type, args);
}
break;
case AF_INET6:
if (h->cb.route6 != NULL) {
h->cb.route6(r, action, RTA_DATA(tb[RTA_DST]),
r->rtm_dst_len, RTA_DATA(tb[RTA_GATEWAY]),
r->rtm_type, args);
}
break;
default:
//only handling IP
return 0;
}
}
}
if (hdr->nlmsg_type == RTM_NEWNEIGH || hdr->nlmsg_type == RTM_DELNEIGH) {
struct ndmsg *neighbor = NLMSG_DATA(hdr);
struct rtattr *tb[NDA_MAX + 1];
uint16_t vlanid = 0;
len -= NLMSG_LENGTH(sizeof(*neighbor));
if (len < 0) {
// incomplete message
return -1;
}
// Ignore non-ip
if (neighbor->ndm_family != AF_INET &&
neighbor->ndm_family != AF_INET6)
return 0;
parse_rtattr_flags(tb, NDA_MAX, RTM_RTA(neighbor), len, 0);
neighbor_action_t action;
if (hdr->nlmsg_type == RTM_NEWNEIGH)
action = NEIGHBOR_ADD;
else
action = NEIGHBOR_DELETE;
if (tb[NDA_VLAN])
vlanid = rta_getattr_u16(tb[NDA_VLAN]);
switch (neighbor->ndm_family) {
case AF_INET:
if (h->cb.neighbor4 != NULL) {
if (tb[NDA_LLADDR]) {
h->cb.neighbor4(action, neighbor->ndm_ifindex,
RTA_DATA(tb[NDA_DST]),
RTA_DATA(tb[NDA_LLADDR]),
neighbor->ndm_state, vlanid, args);
} else {
h->cb.neighbor4(action, neighbor->ndm_ifindex,
RTA_DATA(tb[NDA_DST]),
&invalid_mac,
neighbor->ndm_state, vlanid, args);
}
}
break;
case AF_INET6:
if (h->cb.neighbor6 != NULL) {
if (tb[NDA_LLADDR]) {
h->cb.neighbor6(action, neighbor->ndm_ifindex,
RTA_DATA(tb[NDA_DST]),
RTA_DATA(tb[NDA_LLADDR]),
neighbor->ndm_state, vlanid, args);
} else {
h->cb.neighbor6(action, neighbor->ndm_ifindex,
RTA_DATA(tb[NDA_DST]),
&invalid_mac,
neighbor->ndm_state, vlanid, args);
}
}
break;
default:
//only handling IP
return 0;
}
}
return 0;
}
int print_linkinfo(const struct sockaddr_nl *who,
struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE*)arg;
struct ifinfomsg *ifi = NLMSG_DATA(n);
struct rtattr * tb[IFLA_MAX+1];
int len = n->nlmsg_len;
unsigned m_flag = 0;
if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
return 0;
len -= NLMSG_LENGTH(sizeof(*ifi));
if (len < 0)
return -1;
if (filter.ifindex && ifi->ifi_index != filter.ifindex)
return 0;
if (filter.up && !(ifi->ifi_flags&IFF_UP))
return 0;
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
if (tb[IFLA_IFNAME] == NULL) {
fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
}
if (filter.label &&
(!filter.family || filter.family == AF_PACKET) &&
fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
return 0;
if (tb[IFLA_GROUP]) {
int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
if (filter.group != -1 && group != filter.group)
return -1;
}
if (tb[IFLA_MASTER]) {
int master = *(int*)RTA_DATA(tb[IFLA_MASTER]);
if (filter.master > 0 && master != filter.master)
return -1;
}
else if (filter.master > 0)
return -1;
if (filter.kind) {
if (tb[IFLA_LINKINFO]) {
char *kind = parse_link_kind(tb[IFLA_LINKINFO]);
if (strcmp(kind, filter.kind))
return -1;
} else {
return -1;
}
}
if (n->nlmsg_type == RTM_DELLINK)
fprintf(fp, "Deleted ");
fprintf(fp, "%d: ", ifi->ifi_index);
color_fprintf(fp, COLOR_IFNAME, "%s",
tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
if (tb[IFLA_LINK]) {
SPRINT_BUF(b1);
int iflink = *(int*)RTA_DATA(tb[IFLA_LINK]);
if (iflink == 0)
fprintf(fp, "@NONE: ");
else {
if (tb[IFLA_LINK_NETNSID])
fprintf(fp, "@if%d: ", iflink);
else {
fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
m_flag = ll_index_to_flags(iflink);
m_flag = !(m_flag & IFF_UP);
}
}
} else {
fprintf(fp, ": ");
}
print_link_flags(fp, ifi->ifi_flags, m_flag);
if (tb[IFLA_MTU])
fprintf(fp, "mtu %u ", *(int*)RTA_DATA(tb[IFLA_MTU]));
if (tb[IFLA_QDISC])
fprintf(fp, "qdisc %s ", rta_getattr_str(tb[IFLA_QDISC]));
if (tb[IFLA_MASTER]) {
SPRINT_BUF(b1);
fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
}
if (tb[IFLA_PHYS_PORT_ID]) {
SPRINT_BUF(b1);
fprintf(fp, "portid %s ",
hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_PORT_ID]),
RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]),
b1, sizeof(b1)));
}
if (tb[IFLA_OPERSTATE])
print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
if (do_link && tb[IFLA_LINKMODE])
print_linkmode(fp, tb[IFLA_LINKMODE]);
if (tb[IFLA_GROUP]) {
SPRINT_BUF(b1);
int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
fprintf(fp, "group %s ", rtnl_group_n2a(group, b1, sizeof(b1)));
}
if (filter.showqueue)
print_queuelen(fp, tb);
if (!filter.family || filter.family == AF_PACKET || show_details) {
SPRINT_BUF(b1);
fprintf(fp, "%s", _SL_);
fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
if (tb[IFLA_ADDRESS]) {
color_fprintf(fp, COLOR_MAC, "%s",
ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
RTA_PAYLOAD(tb[IFLA_ADDRESS]),
ifi->ifi_type,
b1, sizeof(b1)));
}
if (tb[IFLA_BROADCAST]) {
if (ifi->ifi_flags&IFF_POINTOPOINT)
fprintf(fp, " peer ");
else
fprintf(fp, " brd ");
fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
RTA_PAYLOAD(tb[IFLA_BROADCAST]),
ifi->ifi_type,
b1, sizeof(b1)));
}
}
if (tb[IFLA_LINK_NETNSID]) {
int id = *(int*)RTA_DATA(tb[IFLA_LINK_NETNSID]);
if (id >= 0)
fprintf(fp, " link-netnsid %d", id);
else
fprintf(fp, " link-netnsid unknown");
}
if (tb[IFLA_PROMISCUITY] && show_details)
fprintf(fp, " promiscuity %u ",
*(int*)RTA_DATA(tb[IFLA_PROMISCUITY]));
if (tb[IFLA_LINKINFO] && show_details)
print_linktype(fp, tb[IFLA_LINKINFO]);
if (do_link && tb[IFLA_AF_SPEC] && show_details)
print_af_spec(fp, tb[IFLA_AF_SPEC]);
if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
fprintf(fp, "%s alias %s", _SL_,
rta_getattr_str(tb[IFLA_IFALIAS]));
}
if (do_link && show_stats) {
fprintf(fp, "%s", _SL_);
__print_link_stats(fp, tb);
}
if ((do_link || show_details) && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
int rem = RTA_PAYLOAD(vflist);
for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
print_vfinfo(fp, i);
}
fprintf(fp, "\n");
fflush(fp);
return 1;
}
int print_rule(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE*)arg;
struct rtmsg *r = NLMSG_DATA(n);
int len = n->nlmsg_len;
int host_len = -1;
__u32 table;
struct rtattr * tb[FRA_MAX+1];
char abuf[256];
SPRINT_BUF(b1);
if (n->nlmsg_type != RTM_NEWRULE && n->nlmsg_type != RTM_DELRULE)
return 0;
len -= NLMSG_LENGTH(sizeof(*r));
if (len < 0)
return -1;
parse_rtattr(tb, FRA_MAX, RTM_RTA(r), len);
if (r->rtm_family == AF_INET)
host_len = 32;
else if (r->rtm_family == AF_INET6)
host_len = 128;
else if (r->rtm_family == AF_DECnet)
host_len = 16;
else if (r->rtm_family == AF_IPX)
host_len = 80;
if (n->nlmsg_type == RTM_DELRULE)
fprintf(fp, "Deleted ");
if (tb[FRA_PRIORITY])
fprintf(fp, "%u:\t", *(unsigned*)RTA_DATA(tb[FRA_PRIORITY]));
else
fprintf(fp, "0:\t");
if (r->rtm_flags & FIB_RULE_INVERT)
fprintf(fp, "not ");
if (tb[FRA_SRC]) {
if (r->rtm_src_len != host_len) {
fprintf(fp, "from %s/%u ", rt_addr_n2a(r->rtm_family,
RTA_PAYLOAD(tb[FRA_SRC]),
RTA_DATA(tb[FRA_SRC]),
abuf, sizeof(abuf)),
r->rtm_src_len
);
} else {
fprintf(fp, "from %s ", format_host(r->rtm_family,
RTA_PAYLOAD(tb[FRA_SRC]),
RTA_DATA(tb[FRA_SRC]),
abuf, sizeof(abuf))
);
}
} else if (r->rtm_src_len) {
fprintf(fp, "from 0/%d ", r->rtm_src_len);
} else {
fprintf(fp, "from all ");
}
if (tb[FRA_DST]) {
if (r->rtm_dst_len != host_len) {
fprintf(fp, "to %s/%u ", rt_addr_n2a(r->rtm_family,
RTA_PAYLOAD(tb[FRA_DST]),
RTA_DATA(tb[FRA_DST]),
abuf, sizeof(abuf)),
r->rtm_dst_len
);
} else {
fprintf(fp, "to %s ", format_host(r->rtm_family,
RTA_PAYLOAD(tb[FRA_DST]),
RTA_DATA(tb[FRA_DST]),
abuf, sizeof(abuf)));
}
} else if (r->rtm_dst_len) {
fprintf(fp, "to 0/%d ", r->rtm_dst_len);
}
if (r->rtm_tos) {
SPRINT_BUF(b1);
fprintf(fp, "tos %s ", rtnl_dsfield_n2a(r->rtm_tos, b1, sizeof(b1)));
}
if (tb[FRA_FWMARK] || tb[FRA_FWMASK]) {
__u32 mark = 0, mask = 0;
if (tb[FRA_FWMARK])
mark = rta_getattr_u32(tb[FRA_FWMARK]);
if (tb[FRA_FWMASK] &&
(mask = rta_getattr_u32(tb[FRA_FWMASK])) != 0xFFFFFFFF)
fprintf(fp, "fwmark 0x%x/0x%x ", mark, mask);
else
fprintf(fp, "fwmark 0x%x ", mark);
}
if (tb[FRA_IFNAME]) {
fprintf(fp, "iif %s ", rta_getattr_str(tb[FRA_IFNAME]));
if (r->rtm_flags & FIB_RULE_IIF_DETACHED)
fprintf(fp, "[detached] ");
}
if (tb[FRA_OIFNAME]) {
fprintf(fp, "oif %s ", rta_getattr_str(tb[FRA_OIFNAME]));
if (r->rtm_flags & FIB_RULE_OIF_DETACHED)
fprintf(fp, "[detached] ");
}
table = rtm_get_table(r, tb);
if (table)
fprintf(fp, "lookup %s ", rtnl_rttable_n2a(table, b1, sizeof(b1)));
if (tb[FRA_FLOW]) {
__u32 to = rta_getattr_u32(tb[FRA_FLOW]);
__u32 from = to>>16;
to &= 0xFFFF;
if (from) {
fprintf(fp, "realms %s/",
rtnl_rtrealm_n2a(from, b1, sizeof(b1)));
}
fprintf(fp, "%s ",
rtnl_rtrealm_n2a(to, b1, sizeof(b1)));
}
if (r->rtm_type == RTN_NAT) {
if (tb[RTA_GATEWAY]) {
fprintf(fp, "map-to %s ",
format_host(r->rtm_family,
RTA_PAYLOAD(tb[RTA_GATEWAY]),
RTA_DATA(tb[RTA_GATEWAY]),
abuf, sizeof(abuf)));
} else
fprintf(fp, "masquerade");
} else if (r->rtm_type == FR_ACT_GOTO) {
fprintf(fp, "goto ");
if (tb[FRA_GOTO])
fprintf(fp, "%u", rta_getattr_u32(tb[FRA_GOTO]));
else
fprintf(fp, "none");
if (r->rtm_flags & FIB_RULE_UNRESOLVED)
fprintf(fp, " [unresolved]");
} else if (r->rtm_type == FR_ACT_NOP)
fprintf(fp, "nop");
else if (r->rtm_type != RTN_UNICAST)
fprintf(fp, "%s", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1)));
fprintf(fp, "\n");
fflush(fp);
return 0;
}
static int print_ntable(struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE *)arg;
struct ndtmsg *ndtm = NLMSG_DATA(n);
int len = n->nlmsg_len;
struct rtattr *tb[NDTA_MAX+1];
struct rtattr *tpb[NDTPA_MAX+1];
int ret;
if (n->nlmsg_type != RTM_NEWNEIGHTBL) {
fprintf(stderr, "Not NEIGHTBL: %08x %08x %08x\n",
n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
return 0;
}
len -= NLMSG_LENGTH(sizeof(*ndtm));
if (len < 0) {
fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
return -1;
}
if (preferred_family && preferred_family != ndtm->ndtm_family)
return 0;
parse_rtattr(tb, NDTA_MAX, NDTA_RTA(ndtm),
n->nlmsg_len - NLMSG_LENGTH(sizeof(*ndtm)));
if (tb[NDTA_NAME]) {
const char *name = rta_getattr_str(tb[NDTA_NAME]);
if (filter.name && strcmp(filter.name, name))
return 0;
}
if (tb[NDTA_PARMS]) {
parse_rtattr(tpb, NDTPA_MAX, RTA_DATA(tb[NDTA_PARMS]),
RTA_PAYLOAD(tb[NDTA_PARMS]));
if (tpb[NDTPA_IFINDEX]) {
__u32 ifindex = rta_getattr_u32(tpb[NDTPA_IFINDEX]);
if (filter.index && filter.index != ifindex)
return 0;
} else {
if (filter.index && filter.index != NONE_DEV)
return 0;
}
}
open_json_object(NULL);
print_string(PRINT_ANY, "family",
"%s ", family_name(ndtm->ndtm_family));
if (tb[NDTA_NAME]) {
const char *name = rta_getattr_str(tb[NDTA_NAME]);
print_string(PRINT_ANY, "name", "%s ", name);
}
print_nl();
ret = (tb[NDTA_THRESH1] || tb[NDTA_THRESH2] || tb[NDTA_THRESH3] ||
tb[NDTA_GC_INTERVAL]);
if (ret)
print_string(PRINT_FP, NULL, " ", NULL);
if (tb[NDTA_THRESH1]) {
__u32 thresh1 = rta_getattr_u32(tb[NDTA_THRESH1]);
print_uint(PRINT_ANY, "thresh1", "thresh1 %u ", thresh1);
}
if (tb[NDTA_THRESH2]) {
__u32 thresh2 = rta_getattr_u32(tb[NDTA_THRESH2]);
print_uint(PRINT_ANY, "thresh2", "thresh2 %u ", thresh2);
}
if (tb[NDTA_THRESH3]) {
__u32 thresh3 = rta_getattr_u32(tb[NDTA_THRESH3]);
print_uint(PRINT_ANY, "thresh3", "thresh3 %u ", thresh3);
}
if (tb[NDTA_GC_INTERVAL]) {
__u64 gc_int = rta_getattr_u64(tb[NDTA_GC_INTERVAL]);
print_u64(PRINT_ANY, "gc_interval", "gc_int %llu ", gc_int);
}
if (ret)
print_nl();
if (tb[NDTA_CONFIG] && show_stats)
print_ndtconfig(RTA_DATA(tb[NDTA_CONFIG]));
if (tb[NDTA_PARMS])
print_ndtparams(tpb);
if (tb[NDTA_STATS] && show_stats)
print_ndtstats(RTA_DATA(tb[NDTA_STATS]));
print_string(PRINT_FP, NULL, "\n", "");
close_json_object();
fflush(fp);
return 0;
}
static int
print_ipt(struct action_util *au,FILE * f, struct rtattr *arg)
{
struct rtattr *tb[TCA_IPT_MAX + 1];
struct xt_entry_target *t = NULL;
if (arg == NULL)
return -1;
xtables_init_all(&tcipt_globals, NFPROTO_IPV4);
set_lib_dir();
parse_rtattr_nested(tb, TCA_IPT_MAX, arg);
if (tb[TCA_IPT_TABLE] == NULL) {
fprintf(f, "[NULL ipt table name ] assuming mangle ");
} else {
fprintf(f, "tablename: %s ",
rta_getattr_str(tb[TCA_IPT_TABLE]));
}
if (tb[TCA_IPT_HOOK] == NULL) {
fprintf(f, "[NULL ipt hook name ]\n ");
return -1;
} else {
__u32 hook;
hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
fprintf(f, " hook: %s \n", ipthooks[hook]);
}
if (tb[TCA_IPT_TARG] == NULL) {
fprintf(f, "\t[NULL ipt target parameters ] \n");
return -1;
} else {
struct xtables_target *m = NULL;
t = RTA_DATA(tb[TCA_IPT_TARG]);
m = xtables_find_target(t->u.user.name, XTF_TRY_LOAD);
if (NULL != m) {
if (0 > build_st(m, t)) {
fprintf(stderr, " %s error \n", m->name);
return -1;
}
tcipt_globals.opts =
xtables_merge_options(
#if (XTABLES_VERSION_CODE >= 6)
tcipt_globals.orig_opts,
#endif
tcipt_globals.opts,
m->extra_opts,
&m->option_offset);
} else {
fprintf(stderr, " failed to find target %s\n\n",
t->u.user.name);
return -1;
}
fprintf(f, "\ttarget ");
m->print(NULL, m->t, 0);
if (tb[TCA_IPT_INDEX] == NULL) {
fprintf(f, " [NULL ipt target index ]\n");
} else {
__u32 index;
index = rta_getattr_u32(tb[TCA_IPT_INDEX]);
fprintf(f, " \n\tindex %d", index);
}
if (tb[TCA_IPT_CNT]) {
struct tc_cnt *c = RTA_DATA(tb[TCA_IPT_CNT]);;
fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
}
if (show_stats) {
if (tb[TCA_IPT_TM]) {
struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
print_tm(f,tm);
}
}
fprintf(f, " \n");
}
xtables_free_opts(1);
return 0;
}
int print_linkinfo(const struct sockaddr_nl *who,
struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE*)arg;
struct ifinfomsg *ifi = NLMSG_DATA(n);
struct rtattr * tb[IFLA_MAX+1];
int len = n->nlmsg_len;
unsigned m_flag = 0;
if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
return 0;
len -= NLMSG_LENGTH(sizeof(*ifi));
if (len < 0)
return -1;
if (filter.ifindex && ifi->ifi_index != filter.ifindex)
return 0;
if (filter.up && !(ifi->ifi_flags&IFF_UP))
return 0;
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
if (tb[IFLA_IFNAME] == NULL) {
fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
}
if (filter.label &&
(!filter.family || filter.family == AF_PACKET) &&
fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
return 0;
if (tb[IFLA_GROUP]) {
int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
if (group != filter.group)
return -1;
}
if (n->nlmsg_type == RTM_DELLINK)
fprintf(fp, "Deleted ");
fprintf(fp, "%d: %s", ifi->ifi_index,
tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
if (tb[IFLA_LINK]) {
SPRINT_BUF(b1);
int iflink = *(int*)RTA_DATA(tb[IFLA_LINK]);
if (iflink == 0)
fprintf(fp, "@NONE: ");
else {
fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
m_flag = ll_index_to_flags(iflink);
m_flag = !(m_flag & IFF_UP);
}
} else {
fprintf(fp, ": ");
}
print_link_flags(fp, ifi->ifi_flags, m_flag);
if (tb[IFLA_MTU])
fprintf(fp, "mtu %u ", *(int*)RTA_DATA(tb[IFLA_MTU]));
if (tb[IFLA_QDISC])
fprintf(fp, "qdisc %s ", rta_getattr_str(tb[IFLA_QDISC]));
if (tb[IFLA_MASTER]) {
SPRINT_BUF(b1);
fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
}
if (tb[IFLA_OPERSTATE])
print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
if (do_link && tb[IFLA_LINKMODE])
print_linkmode(fp, tb[IFLA_LINKMODE]);
if (filter.showqueue)
print_queuelen(fp, tb);
if (!filter.family || filter.family == AF_PACKET) {
SPRINT_BUF(b1);
fprintf(fp, "%s", _SL_);
fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
if (tb[IFLA_ADDRESS]) {
fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
RTA_PAYLOAD(tb[IFLA_ADDRESS]),
ifi->ifi_type,
b1, sizeof(b1)));
}
if (tb[IFLA_BROADCAST]) {
if (ifi->ifi_flags&IFF_POINTOPOINT)
fprintf(fp, " peer ");
else
fprintf(fp, " brd ");
fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
RTA_PAYLOAD(tb[IFLA_BROADCAST]),
ifi->ifi_type,
b1, sizeof(b1)));
}
}
if (do_link && tb[IFLA_LINKINFO] && show_details)
print_linktype(fp, tb[IFLA_LINKINFO]);
if (do_link && tb[IFLA_IFALIAS])
fprintf(fp,"\n alias %s",
rta_getattr_str(tb[IFLA_IFALIAS]));
if (do_link && show_stats) {
if (tb[IFLA_STATS64])
print_link_stats64(fp, RTA_DATA(tb[IFLA_STATS64]));
else if (tb[IFLA_STATS])
print_link_stats(fp, RTA_DATA(tb[IFLA_STATS]));
}
if (do_link && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
int rem = RTA_PAYLOAD(vflist);
for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
print_vfinfo(fp, i);
}
fprintf(fp, "\n");
fflush(fp);
return 0;
}
static int
print_ipt(struct action_util *au, FILE * f, struct rtattr *arg)
{
struct rtattr *tb[TCA_IPT_MAX + 1];
struct xt_entry_target *t = NULL;
if (arg == NULL)
return -1;
set_lib_dir();
parse_rtattr_nested(tb, TCA_IPT_MAX, arg);
if (tb[TCA_IPT_TABLE] == NULL) {
fprintf(f, "[NULL ipt table name ] assuming mangle ");
} else {
fprintf(f, "tablename: %s ",
rta_getattr_str(tb[TCA_IPT_TABLE]));
}
if (tb[TCA_IPT_HOOK] == NULL) {
fprintf(f, "[NULL ipt hook name ]\n ");
return -1;
} else {
__u32 hook;
hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
fprintf(f, " hook: %s\n", ipthooks[hook]);
}
if (tb[TCA_IPT_TARG] == NULL) {
fprintf(f, "\t[NULL ipt target parameters ]\n");
return -1;
} else {
struct xtables_target *m = NULL;
t = RTA_DATA(tb[TCA_IPT_TARG]);
m = find_target(t->u.user.name, TRY_LOAD);
if (m != NULL) {
if (build_st(m, t) < 0) {
fprintf(stderr, " %s error\n", m->name);
return -1;
}
opts =
merge_options(opts, m->extra_opts,
&m->option_offset);
} else {
fprintf(stderr, " failed to find target %s\n\n",
t->u.user.name);
return -1;
}
fprintf(f, "\ttarget ");
m->print(NULL, m->t, 0);
if (tb[TCA_IPT_INDEX] == NULL) {
fprintf(f, " [NULL ipt target index ]\n");
} else {
__u32 index;
index = rta_getattr_u32(tb[TCA_IPT_INDEX]);
fprintf(f, "\n\tindex %u", index);
}
if (tb[TCA_IPT_CNT]) {
struct tc_cnt *c = RTA_DATA(tb[TCA_IPT_CNT]);
fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
}
if (show_stats) {
if (tb[TCA_IPT_TM]) {
struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
print_tm(f, tm);
}
}
fprintf(f, "\n");
}
free_opts(opts);
return 0;
}
int print_ntable(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE*)arg;
struct ndtmsg *ndtm = NLMSG_DATA(n);
int len = n->nlmsg_len;
struct rtattr *tb[NDTA_MAX+1];
struct rtattr *tpb[NDTPA_MAX+1];
int ret;
if (n->nlmsg_type != RTM_NEWNEIGHTBL) {
fprintf(stderr, "Not NEIGHTBL: %08x %08x %08x\n",
n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
return 0;
}
len -= NLMSG_LENGTH(sizeof(*ndtm));
if (len < 0) {
fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
return -1;
}
if (preferred_family && preferred_family != ndtm->ndtm_family)
return 0;
parse_rtattr(tb, NDTA_MAX, NDTA_RTA(ndtm),
n->nlmsg_len - NLMSG_LENGTH(sizeof(*ndtm)));
if (tb[NDTA_NAME]) {
const char *name = rta_getattr_str(tb[NDTA_NAME]);
if (strlen(filter.name) > 0 && strcmp(filter.name, name))
return 0;
}
if (tb[NDTA_PARMS]) {
parse_rtattr(tpb, NDTPA_MAX, RTA_DATA(tb[NDTA_PARMS]),
RTA_PAYLOAD(tb[NDTA_PARMS]));
if (tpb[NDTPA_IFINDEX]) {
__u32 ifindex = rta_getattr_u32(tpb[NDTPA_IFINDEX]);
if (filter.index && filter.index != ifindex)
return 0;
} else {
if (filter.index && filter.index != NONE_DEV)
return 0;
}
}
if (ndtm->ndtm_family == AF_INET)
fprintf(fp, "inet ");
else if (ndtm->ndtm_family == AF_INET6)
fprintf(fp, "inet6 ");
else if (ndtm->ndtm_family == AF_DECnet)
fprintf(fp, "dnet ");
else
fprintf(fp, "(%d) ", ndtm->ndtm_family);
if (tb[NDTA_NAME]) {
const char *name = rta_getattr_str(tb[NDTA_NAME]);
fprintf(fp, "%s ", name);
}
fprintf(fp, "%s", _SL_);
ret = (tb[NDTA_THRESH1] || tb[NDTA_THRESH2] || tb[NDTA_THRESH3] ||
tb[NDTA_GC_INTERVAL]);
if (ret)
fprintf(fp, " ");
if (tb[NDTA_THRESH1]) {
__u32 thresh1 = rta_getattr_u32(tb[NDTA_THRESH1]);
fprintf(fp, "thresh1 %u ", thresh1);
}
if (tb[NDTA_THRESH2]) {
__u32 thresh2 = rta_getattr_u32(tb[NDTA_THRESH2]);
fprintf(fp, "thresh2 %u ", thresh2);
}
if (tb[NDTA_THRESH3]) {
__u32 thresh3 = rta_getattr_u32(tb[NDTA_THRESH3]);
fprintf(fp, "thresh3 %u ", thresh3);
}
if (tb[NDTA_GC_INTERVAL]) {
unsigned long long gc_int = rta_getattr_u64(tb[NDTA_GC_INTERVAL]);
fprintf(fp, "gc_int %llu ", gc_int);
}
if (ret)
fprintf(fp, "%s", _SL_);
if (tb[NDTA_CONFIG] && show_stats) {
struct ndt_config *ndtc = RTA_DATA(tb[NDTA_CONFIG]);
fprintf(fp, " ");
fprintf(fp, "config ");
fprintf(fp, "key_len %u ", ndtc->ndtc_key_len);
fprintf(fp, "entry_size %u ", ndtc->ndtc_entry_size);
fprintf(fp, "entries %u ", ndtc->ndtc_entries);
fprintf(fp, "%s", _SL_);
fprintf(fp, " ");
fprintf(fp, "last_flush %s ",
ntable_strtime_delta(ndtc->ndtc_last_flush));
fprintf(fp, "last_rand %s ",
ntable_strtime_delta(ndtc->ndtc_last_rand));
fprintf(fp, "%s", _SL_);
fprintf(fp, " ");
fprintf(fp, "hash_rnd %u ", ndtc->ndtc_hash_rnd);
fprintf(fp, "hash_mask %08x ", ndtc->ndtc_hash_mask);
fprintf(fp, "hash_chain_gc %u ", ndtc->ndtc_hash_chain_gc);
fprintf(fp, "proxy_qlen %u ", ndtc->ndtc_proxy_qlen);
fprintf(fp, "%s", _SL_);
}
if (tb[NDTA_PARMS]) {
if (tpb[NDTPA_IFINDEX]) {
__u32 ifindex = rta_getattr_u32(tpb[NDTPA_IFINDEX]);
fprintf(fp, " ");
fprintf(fp, "dev %s ", ll_index_to_name(ifindex));
fprintf(fp, "%s", _SL_);
}
fprintf(fp, " ");
if (tpb[NDTPA_REFCNT]) {
__u32 refcnt = rta_getattr_u32(tpb[NDTPA_REFCNT]);
fprintf(fp, "refcnt %u ", refcnt);
}
if (tpb[NDTPA_REACHABLE_TIME]) {
unsigned long long reachable = rta_getattr_u64(tpb[NDTPA_REACHABLE_TIME]);
fprintf(fp, "reachable %llu ", reachable);
}
if (tpb[NDTPA_BASE_REACHABLE_TIME]) {
unsigned long long breachable = rta_getattr_u64(tpb[NDTPA_BASE_REACHABLE_TIME]);
fprintf(fp, "base_reachable %llu ", breachable);
}
if (tpb[NDTPA_RETRANS_TIME]) {
unsigned long long retrans = rta_getattr_u64(tpb[NDTPA_RETRANS_TIME]);
fprintf(fp, "retrans %llu ", retrans);
}
fprintf(fp, "%s", _SL_);
fprintf(fp, " ");
if (tpb[NDTPA_GC_STALETIME]) {
unsigned long long gc_stale = rta_getattr_u64(tpb[NDTPA_GC_STALETIME]);
fprintf(fp, "gc_stale %llu ", gc_stale);
}
if (tpb[NDTPA_DELAY_PROBE_TIME]) {
unsigned long long delay_probe = rta_getattr_u64(tpb[NDTPA_DELAY_PROBE_TIME]);
fprintf(fp, "delay_probe %llu ", delay_probe);
}
if (tpb[NDTPA_QUEUE_LEN]) {
__u32 queue = rta_getattr_u32(tpb[NDTPA_QUEUE_LEN]);
fprintf(fp, "queue %u ", queue);
}
fprintf(fp, "%s", _SL_);
fprintf(fp, " ");
if (tpb[NDTPA_APP_PROBES]) {
__u32 aprobe = rta_getattr_u32(tpb[NDTPA_APP_PROBES]);
fprintf(fp, "app_probes %u ", aprobe);
}
if (tpb[NDTPA_UCAST_PROBES]) {
__u32 uprobe = rta_getattr_u32(tpb[NDTPA_UCAST_PROBES]);
fprintf(fp, "ucast_probes %u ", uprobe);
}
if (tpb[NDTPA_MCAST_PROBES]) {
__u32 mprobe = rta_getattr_u32(tpb[NDTPA_MCAST_PROBES]);
fprintf(fp, "mcast_probes %u ", mprobe);
}
fprintf(fp, "%s", _SL_);
fprintf(fp, " ");
if (tpb[NDTPA_ANYCAST_DELAY]) {
unsigned long long anycast_delay = rta_getattr_u64(tpb[NDTPA_ANYCAST_DELAY]);
fprintf(fp, "anycast_delay %llu ", anycast_delay);
}
if (tpb[NDTPA_PROXY_DELAY]) {
unsigned long long proxy_delay = rta_getattr_u64(tpb[NDTPA_PROXY_DELAY]);
fprintf(fp, "proxy_delay %llu ", proxy_delay);
}
if (tpb[NDTPA_PROXY_QLEN]) {
__u32 pqueue = rta_getattr_u32(tpb[NDTPA_PROXY_QLEN]);
fprintf(fp, "proxy_queue %u ", pqueue);
}
if (tpb[NDTPA_LOCKTIME]) {
unsigned long long locktime = rta_getattr_u64(tpb[NDTPA_LOCKTIME]);
fprintf(fp, "locktime %llu ", locktime);
}
fprintf(fp, "%s", _SL_);
}
if (tb[NDTA_STATS] && show_stats) {
struct ndt_stats *ndts = RTA_DATA(tb[NDTA_STATS]);
fprintf(fp, " ");
fprintf(fp, "stats ");
fprintf(fp, "allocs %llu ",
(unsigned long long) ndts->ndts_allocs);
fprintf(fp, "destroys %llu ",
(unsigned long long) ndts->ndts_destroys);
fprintf(fp, "hash_grows %llu ",
(unsigned long long) ndts->ndts_hash_grows);
fprintf(fp, "%s", _SL_);
fprintf(fp, " ");
fprintf(fp, "res_failed %llu ",
(unsigned long long) ndts->ndts_res_failed);
fprintf(fp, "lookups %llu ",
(unsigned long long) ndts->ndts_lookups);
fprintf(fp, "hits %llu ",
(unsigned long long) ndts->ndts_hits);
fprintf(fp, "%s", _SL_);
fprintf(fp, " ");
fprintf(fp, "rcv_probes_mcast %llu ",
(unsigned long long) ndts->ndts_rcv_probes_mcast);
fprintf(fp, "rcv_probes_ucast %llu ",
(unsigned long long) ndts->ndts_rcv_probes_ucast);
fprintf(fp, "%s", _SL_);
fprintf(fp, " ");
fprintf(fp, "periodic_gc_runs %llu ",
(unsigned long long) ndts->ndts_periodic_gc_runs);
fprintf(fp, "forced_gc_runs %llu ",
(unsigned long long) ndts->ndts_forced_gc_runs);
fprintf(fp, "%s", _SL_);
}
fprintf(fp, "\n");
fflush(fp);
return 0;
}
static int parse_ipt(struct action_util *a,int *argc_p,
char ***argv_p, int tca_id, struct nlmsghdr *n)
{
struct xtables_target *m = NULL;
struct ipt_entry fw;
struct rtattr *tail;
int c;
int rargc = *argc_p;
char **argv = *argv_p;
int argc = 0, iargc = 0;
char k[16];
int size = 0;
int iok = 0, ok = 0;
__u32 hook = 0, index = 0;
struct option *opts = NULL;
xtables_init_all(&tcipt_globals, NFPROTO_IPV4);
set_lib_dir();
{
int i;
for (i = 0; i < rargc; i++) {
if (NULL == argv[i] || 0 == strcmp(argv[i], "action")) {
break;
}
}
iargc = argc = i;
}
if (argc <= 2) {
fprintf(stderr,"bad arguements to ipt %d vs %d \n", argc, rargc);
return -1;
}
while (1) {
c = getopt_long(argc, argv, "j:", tcipt_globals.opts, NULL);
if (c == -1)
break;
switch (c) {
case 'j':
m = xtables_find_target(optarg, XTF_TRY_LOAD);
if (NULL != m) {
if (0 > build_st(m, NULL)) {
printf(" %s error \n", m->name);
return -1;
}
#if (XTABLES_VERSION_CODE >= 6)
opts = xtables_options_xfrm(tcipt_globals.orig_opts,
tcipt_globals.opts,
m->x6_options,
&m->option_offset);
#else
opts = xtables_merge_options(tcipt_globals.orig_opts,
tcipt_globals.opts,
m->extra_opts,
&m->option_offset);
#endif
if (opts == NULL) {
fprintf(stderr, " failed to find aditional options for target %s\n\n", optarg);
return -1;
} else
tcipt_globals.opts = opts;
} else {
fprintf(stderr," failed to find target %s\n\n", optarg);
return -1;
}
ok++;
break;
default:
memset(&fw, 0, sizeof (fw));
#if (XTABLES_VERSION_CODE >= 6)
if (m != NULL && m->x6_parse != NULL ) {
xtables_option_tpcall(c, argv, 0 , m, NULL);
#else
if (m != NULL && m->parse != NULL ) {
m->parse(c - m->option_offset, argv, 0, &m->tflags,
NULL, &m->t);
#endif
} else {
fprintf(stderr,"failed to find target %s\n\n", optarg);
return -1;
}
ok++;
break;
}
}
if (iargc > optind) {
if (matches(argv[optind], "index") == 0) {
if (get_u32(&index, argv[optind + 1], 10)) {
fprintf(stderr, "Illegal \"index\"\n");
xtables_free_opts(1);
return -1;
}
iok++;
optind += 2;
}
}
if (!ok && !iok) {
fprintf(stderr," ipt Parser BAD!! (%s)\n", *argv);
return -1;
}
/* check that we passed the correct parameters to the target */
#if (XTABLES_VERSION_CODE >= 6)
if (m)
xtables_option_tfcall(m);
#else
if (m && m->final_check)
m->final_check(m->tflags);
#endif
{
struct tcmsg *t = NLMSG_DATA(n);
if (t->tcm_parent != TC_H_ROOT
&& t->tcm_parent == TC_H_MAJ(TC_H_INGRESS)) {
hook = NF_IP_PRE_ROUTING;
} else {
hook = NF_IP_POST_ROUTING;
}
}
tail = NLMSG_TAIL(n);
addattr_l(n, MAX_MSG, tca_id, NULL, 0);
fprintf(stdout, "tablename: %s hook: %s\n ", tname, ipthooks[hook]);
fprintf(stdout, "\ttarget: ");
if (m)
m->print(NULL, m->t, 0);
fprintf(stdout, " index %d\n", index);
if (strlen(tname) > 16) {
size = 16;
k[15] = 0;
} else {
size = 1 + strlen(tname);
}
strncpy(k, tname, size);
addattr_l(n, MAX_MSG, TCA_IPT_TABLE, k, size);
addattr_l(n, MAX_MSG, TCA_IPT_HOOK, &hook, 4);
addattr_l(n, MAX_MSG, TCA_IPT_INDEX, &index, 4);
if (m)
addattr_l(n, MAX_MSG, TCA_IPT_TARG, m->t, m->t->u.target_size);
tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
argc -= optind;
argv += optind;
*argc_p = rargc - iargc;
*argv_p = argv;
optind = 0;
xtables_free_opts(1);
if (m) {
/* Clear flags if target will be used again */
m->tflags = 0;
m->used = 0;
/* Free allocated memory */
if (m->t)
free(m->t);
}
return 0;
}
static int
print_ipt(struct action_util *au,FILE * f, struct rtattr *arg)
{
struct rtattr *tb[TCA_IPT_MAX + 1];
struct xt_entry_target *t = NULL;
struct option *opts = NULL;
if (arg == NULL)
return -1;
xtables_init_all(&tcipt_globals, NFPROTO_IPV4);
set_lib_dir();
parse_rtattr_nested(tb, TCA_IPT_MAX, arg);
if (tb[TCA_IPT_TABLE] == NULL) {
fprintf(f, "[NULL ipt table name ] assuming mangle ");
} else {
fprintf(f, "tablename: %s ",
rta_getattr_str(tb[TCA_IPT_TABLE]));
}
if (tb[TCA_IPT_HOOK] == NULL) {
fprintf(f, "[NULL ipt hook name ]\n ");
return -1;
} else {
__u32 hook;
hook = rta_getattr_u32(tb[TCA_IPT_HOOK]);
fprintf(f, " hook: %s \n", ipthooks[hook]);
}
if (tb[TCA_IPT_TARG] == NULL) {
fprintf(f, "\t[NULL ipt target parameters ] \n");
return -1;
} else {
struct xtables_target *m = NULL;
t = RTA_DATA(tb[TCA_IPT_TARG]);
m = xtables_find_target(t->u.user.name, XTF_TRY_LOAD);
if (NULL != m) {
if (0 > build_st(m, t)) {
fprintf(stderr, " %s error \n", m->name);
return -1;
}
#if (XTABLES_VERSION_CODE >= 6)
opts = xtables_options_xfrm(tcipt_globals.orig_opts,
tcipt_globals.opts,
m->x6_options,
&m->option_offset);
#else
opts = xtables_merge_options(tcipt_globals.orig_opts,
tcipt_globals.opts,
m->extra_opts,
&m->option_offset);
#endif
if (opts == NULL) {
fprintf(stderr, " failed to find aditional options for target %s\n\n", optarg);
return -1;
} else
tcipt_globals.opts = opts;
} else {
fprintf(stderr, " failed to find target %s\n\n",
t->u.user.name);
return -1;
}
fprintf(f, "\ttarget ");
m->print(NULL, m->t, 0);
if (tb[TCA_IPT_INDEX] == NULL) {
fprintf(f, " [NULL ipt target index ]\n");
} else {
__u32 index;
index = rta_getattr_u32(tb[TCA_IPT_INDEX]);
fprintf(f, " \n\tindex %d", index);
}
if (tb[TCA_IPT_CNT]) {
struct tc_cnt *c = RTA_DATA(tb[TCA_IPT_CNT]);;
fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
}
if (show_stats) {
if (tb[TCA_IPT_TM]) {
struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
print_tm(f,tm);
}
}
fprintf(f, " \n");
}
xtables_free_opts(1);
return 0;
}
struct action_util xt_action_util = {
.id = "xt",
.parse_aopt = parse_ipt,
.print_aopt = print_ipt,
};
int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
void *arg)
{
FILE *fp = arg;
struct ifaddrmsg *ifa = NLMSG_DATA(n);
int len = n->nlmsg_len;
int deprecated = 0;
/* Use local copy of ifa_flags to not interfere with filtering code */
unsigned int ifa_flags;
struct rtattr * rta_tb[IFA_MAX+1];
char abuf[256];
SPRINT_BUF(b1);
if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
return 0;
len -= NLMSG_LENGTH(sizeof(*ifa));
if (len < 0) {
fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
return -1;
}
if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
return 0;
parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa),
n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
if (!rta_tb[IFA_LOCAL])
rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
if (!rta_tb[IFA_ADDRESS])
rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
if (filter.ifindex && filter.ifindex != ifa->ifa_index)
return 0;
if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
return 0;
if ((filter.flags ^ ifa_flags) & filter.flagmask)
return 0;
if (filter.label) {
SPRINT_BUF(b1);
const char *label;
if (rta_tb[IFA_LABEL])
label = RTA_DATA(rta_tb[IFA_LABEL]);
else
label = ll_idx_n2a(ifa->ifa_index, b1);
if (fnmatch(filter.label, label, 0) != 0)
return 0;
}
if (filter.pfx.family) {
if (rta_tb[IFA_LOCAL]) {
inet_prefix dst;
memset(&dst, 0, sizeof(dst));
dst.family = ifa->ifa_family;
memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
return 0;
}
}
if (filter.family && filter.family != ifa->ifa_family)
return 0;
if (filter.flushb) {
struct nlmsghdr *fn;
if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
if (flush_update())
return -1;
}
fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
memcpy(fn, n, n->nlmsg_len);
fn->nlmsg_type = RTM_DELADDR;
fn->nlmsg_flags = NLM_F_REQUEST;
fn->nlmsg_seq = ++rth.seq;
filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
filter.flushed++;
if (show_stats < 2)
return 0;
}
if (n->nlmsg_type == RTM_DELADDR)
fprintf(fp, "Deleted ");
if (filter.oneline || filter.flushb)
fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
if (ifa->ifa_family == AF_INET)
fprintf(fp, " inet ");
else if (ifa->ifa_family == AF_INET6)
fprintf(fp, " inet6 ");
else if (ifa->ifa_family == AF_DECnet)
fprintf(fp, " dnet ");
else if (ifa->ifa_family == AF_IPX)
fprintf(fp, " ipx ");
else
fprintf(fp, " family %d ", ifa->ifa_family);
if (rta_tb[IFA_LOCAL]) {
if (ifa->ifa_family == AF_INET)
color_fprintf(fp, COLOR_INET, "%s", format_host(ifa->ifa_family,
RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
RTA_DATA(rta_tb[IFA_LOCAL]),
abuf, sizeof(abuf)));
else if (ifa->ifa_family == AF_INET6)
color_fprintf(fp, COLOR_INET6, "%s", format_host(ifa->ifa_family,
RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
RTA_DATA(rta_tb[IFA_LOCAL]),
abuf, sizeof(abuf)));
else
fprintf(fp, "%s", format_host(ifa->ifa_family,
RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
RTA_DATA(rta_tb[IFA_LOCAL]),
abuf, sizeof(abuf)));
if (rta_tb[IFA_ADDRESS] == NULL ||
memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), RTA_DATA(rta_tb[IFA_LOCAL]),
ifa->ifa_family == AF_INET ? 4 : 16) == 0) {
fprintf(fp, "/%d ", ifa->ifa_prefixlen);
} else {
fprintf(fp, " peer %s/%d ",
format_host(ifa->ifa_family,
RTA_PAYLOAD(rta_tb[IFA_ADDRESS]),
RTA_DATA(rta_tb[IFA_ADDRESS]),
abuf, sizeof(abuf)),
ifa->ifa_prefixlen);
}
}
if (rta_tb[IFA_BROADCAST]) {
fprintf(fp, "brd %s ",
format_host(ifa->ifa_family,
RTA_PAYLOAD(rta_tb[IFA_BROADCAST]),
RTA_DATA(rta_tb[IFA_BROADCAST]),
abuf, sizeof(abuf)));
}
if (rta_tb[IFA_ANYCAST]) {
fprintf(fp, "any %s ",
format_host(ifa->ifa_family,
RTA_PAYLOAD(rta_tb[IFA_ANYCAST]),
RTA_DATA(rta_tb[IFA_ANYCAST]),
abuf, sizeof(abuf)));
}
fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
if (ifa_flags & IFA_F_SECONDARY) {
ifa_flags &= ~IFA_F_SECONDARY;
if (ifa->ifa_family == AF_INET6)
fprintf(fp, "temporary ");
else
fprintf(fp, "secondary ");
}
if (ifa_flags & IFA_F_TENTATIVE) {
ifa_flags &= ~IFA_F_TENTATIVE;
fprintf(fp, "tentative ");
}
if (ifa_flags & IFA_F_DEPRECATED) {
ifa_flags &= ~IFA_F_DEPRECATED;
deprecated = 1;
fprintf(fp, "deprecated ");
}
if (ifa_flags & IFA_F_HOMEADDRESS) {
ifa_flags &= ~IFA_F_HOMEADDRESS;
fprintf(fp, "home ");
}
if (ifa_flags & IFA_F_NODAD) {
ifa_flags &= ~IFA_F_NODAD;
fprintf(fp, "nodad ");
}
if (ifa_flags & IFA_F_MANAGETEMPADDR) {
ifa_flags &= ~IFA_F_MANAGETEMPADDR;
fprintf(fp, "mngtmpaddr ");
}
if (ifa_flags & IFA_F_NOPREFIXROUTE) {
ifa_flags &= ~IFA_F_NOPREFIXROUTE;
fprintf(fp, "noprefixroute ");
}
if (ifa_flags & IFA_F_MCAUTOJOIN) {
ifa_flags &= ~IFA_F_MCAUTOJOIN;
fprintf(fp, "autojoin ");
}
if (!(ifa_flags & IFA_F_PERMANENT)) {
fprintf(fp, "dynamic ");
} else
ifa_flags &= ~IFA_F_PERMANENT;
if (ifa_flags & IFA_F_DADFAILED) {
ifa_flags &= ~IFA_F_DADFAILED;
fprintf(fp, "dadfailed ");
}
if (ifa_flags)
fprintf(fp, "flags %02x ", ifa_flags);
if (rta_tb[IFA_LABEL])
fprintf(fp, "%s", rta_getattr_str(rta_tb[IFA_LABEL]));
if (rta_tb[IFA_CACHEINFO]) {
struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
fprintf(fp, "%s", _SL_);
fprintf(fp, " valid_lft ");
if (ci->ifa_valid == INFINITY_LIFE_TIME)
fprintf(fp, "forever");
else
fprintf(fp, "%usec", ci->ifa_valid);
fprintf(fp, " preferred_lft ");
if (ci->ifa_prefered == INFINITY_LIFE_TIME)
fprintf(fp, "forever");
else {
if (deprecated)
fprintf(fp, "%dsec", ci->ifa_prefered);
else
fprintf(fp, "%usec", ci->ifa_prefered);
}
}
fprintf(fp, "\n");
fflush(fp);
return 0;
}
int print_linkinfo(const struct sockaddr_nl *who,
struct nlmsghdr *n, void *arg)
{
FILE *fp = arg;
int len = n->nlmsg_len;
struct ifinfomsg *ifi = NLMSG_DATA(n);
struct rtattr * tb[IFLA_MAX+1];
char b1[IFNAMSIZ];
len -= NLMSG_LENGTH(sizeof(*ifi));
if (len < 0) {
fprintf(stderr, "Message too short!\n");
return -1;
}
if (!(ifi->ifi_family == AF_BRIDGE || ifi->ifi_family == AF_UNSPEC))
return 0;
if (filter_index && filter_index != ifi->ifi_index)
return 0;
parse_rtattr_flags(tb, IFLA_MAX, IFLA_RTA(ifi), len, NLA_F_NESTED);
if (tb[IFLA_IFNAME] == NULL) {
fprintf(stderr, "BUG: nil ifname\n");
return -1;
}
if (n->nlmsg_type == RTM_DELLINK)
fprintf(fp, "Deleted ");
fprintf(fp, "%d: %s ", ifi->ifi_index,
tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
if (tb[IFLA_OPERSTATE])
print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
if (tb[IFLA_LINK]) {
SPRINT_BUF(b1);
int iflink = rta_getattr_u32(tb[IFLA_LINK]);
if (iflink == 0)
fprintf(fp, "@NONE: ");
else
fprintf(fp, "@%s: ",
if_indextoname(iflink, b1));
} else
fprintf(fp, ": ");
print_link_flags(fp, ifi->ifi_flags);
if (tb[IFLA_MTU])
fprintf(fp, "mtu %u ", rta_getattr_u32(tb[IFLA_MTU]));
if (tb[IFLA_MASTER])
fprintf(fp, "master %s ",
if_indextoname(rta_getattr_u32(tb[IFLA_MASTER]), b1));
if (tb[IFLA_PROTINFO]) {
if (tb[IFLA_PROTINFO]->rta_type & NLA_F_NESTED) {
struct rtattr *prtb[IFLA_BRPORT_MAX+1];
parse_rtattr_nested(prtb, IFLA_BRPORT_MAX,
tb[IFLA_PROTINFO]);
if (prtb[IFLA_BRPORT_STATE])
print_portstate(fp,
rta_getattr_u8(prtb[IFLA_BRPORT_STATE]));
if (prtb[IFLA_BRPORT_PRIORITY])
fprintf(fp, "priority %hu ",
rta_getattr_u16(prtb[IFLA_BRPORT_PRIORITY]));
if (prtb[IFLA_BRPORT_COST])
fprintf(fp, "cost %u ",
rta_getattr_u32(prtb[IFLA_BRPORT_COST]));
if (show_details) {
fprintf(fp, "%s ", _SL_);
if (prtb[IFLA_BRPORT_MODE])
print_onoff(fp, "hairpin",
rta_getattr_u8(prtb[IFLA_BRPORT_MODE]));
if (prtb[IFLA_BRPORT_GUARD])
print_onoff(fp, "guard",
rta_getattr_u8(prtb[IFLA_BRPORT_GUARD]));
if (prtb[IFLA_BRPORT_PROTECT])
print_onoff(fp, "root_block",
rta_getattr_u8(prtb[IFLA_BRPORT_PROTECT]));
if (prtb[IFLA_BRPORT_FAST_LEAVE])
print_onoff(fp, "fastleave",
rta_getattr_u8(prtb[IFLA_BRPORT_FAST_LEAVE]));
if (prtb[IFLA_BRPORT_LEARNING])
print_onoff(fp, "learning",
rta_getattr_u8(prtb[IFLA_BRPORT_LEARNING]));
if (prtb[IFLA_BRPORT_LEARNING_SYNC])
print_onoff(fp, "learning_sync",
rta_getattr_u8(prtb[IFLA_BRPORT_LEARNING_SYNC]));
if (prtb[IFLA_BRPORT_UNICAST_FLOOD])
print_onoff(fp, "flood",
rta_getattr_u8(prtb[IFLA_BRPORT_UNICAST_FLOOD]));
}
} else
print_portstate(fp, rta_getattr_u8(tb[IFLA_PROTINFO]));
}
if (tb[IFLA_AF_SPEC]) {
/* This is reported by HW devices that have some bridging
* capabilities.
*/
struct rtattr *aftb[IFLA_BRIDGE_MAX+1];
parse_rtattr_nested(aftb, IFLA_BRIDGE_MAX, tb[IFLA_AF_SPEC]);
if (aftb[IFLA_BRIDGE_MODE])
print_hwmode(fp, rta_getattr_u16(aftb[IFLA_BRIDGE_MODE]));
}
fprintf(fp, "\n");
fflush(fp);
return 0;
}
