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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <syslog.h>
#include <fcntl.h>
#include <net/if_arp.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <sys/uio.h>
#include "libnetlink.h"
#include "iplink.h"
#include "triton.h"
#include "log.h"
struct arg
{
iplink_list_func func;
void *arg;
};
static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
struct ifinfomsg *ifi = NLMSG_DATA(n);
struct rtattr *tb[IFLA_MAX + 1];
struct arg *a = arg;
if (n->nlmsg_type != RTM_NEWLINK)
return 0;
if (n->nlmsg_len < NLMSG_LENGTH(sizeof(*ifi)))
return -1;
memset(tb, 0, sizeof(tb));
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), IFLA_PAYLOAD(n));
if (tb[IFLA_IFNAME] == NULL)
return 0;
//printf("%i %s\n", ifi->ifi_index, RTA_DATA(tb[IFLA_IFNAME]));
return a->func(ifi->ifi_index, ifi->ifi_flags, RTA_DATA(tb[IFLA_IFNAME]), a->arg);
}
int __export iplink_list(iplink_list_func func, void *arg)
{
struct rtnl_handle rth;
struct arg a = { .func = func, .arg = arg };
if (rtnl_open(&rth, 0)) {
log_emerg("iplink: cannot open rtnetlink\n");
return -1;
}
if (rtnl_wilddump_request(&rth, AF_PACKET, RTM_GETLINK) < 0) {
log_emerg("iplink: cannot send dump request\n");
goto out_err;
}
if (rtnl_dump_filter(&rth, store_nlmsg, &a, NULL, NULL) < 0) {
log_emerg("iplink: dump terminated\n");
goto out_err;
}
rtnl_close(&rth);
return 0;
out_err:
rtnl_close(&rth);
return -1;
}
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