9#include <libmnl/libmnl.h>
11#include <linux/if_link.h>
12#include <linux/rtnetlink.h>
14static int data_attr_cb(
const struct nlattr *attr,
void *data)
16 const struct nlattr **tb = data;
27 perror(
"mnl_attr_validate");
36static int data_cb(
const struct nlmsghdr *nlh,
void *data)
38 struct nlattr *tb[NDA_MAX + 1] = {};
41 printf(
"index=%d family=%d ", ndm->ndm_ifindex, ndm->ndm_family);
47 char out[INET6_ADDRSTRLEN];
49 if (inet_ntop(ndm->ndm_family, addr, out,
sizeof(out)))
57 unsigned char lladdr[6] = {0};
59 if (memcpy(&lladdr, addr, 6))
60 printf(
"%02x:%02x:%02x:%02x:%02x:%02x ",
61 lladdr[0], lladdr[1], lladdr[2],
62 lladdr[3], lladdr[4], lladdr[5]);
66 switch(ndm->ndm_state) {
68 printf(
"incomplete ");
92 printf(
"%d ", ndm->ndm_state);
100int main(
int argc,
char *argv[])
102 char buf[MNL_SOCKET_DUMP_SIZE];
103 unsigned int seq, portid;
104 struct mnl_socket *nl;
105 struct nlmsghdr *nlh;
110 fprintf(stderr,
"Usage: %s <inet|inet6>\n", argv[0]);
115 nlh->nlmsg_type = RTM_GETNEIGH;
116 nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
117 nlh->nlmsg_seq = seq = time(NULL);
120 if (strcmp(argv[1],
"inet") == 0)
121 rt->rtgen_family = AF_INET;
122 else if (strcmp(argv[1],
"inet6") == 0)
123 rt->rtgen_family = AF_INET6;
127 perror(
"mnl_socket_open");
132 perror(
"mnl_socket_bind");
138 perror(
"mnl_socket_sendto");
144 ret =
mnl_cb_run(buf, ret, seq, portid, data_cb, NULL);
145 if (ret <= MNL_CB_STOP)
void * mnl_attr_get_payload(const struct nlattr *attr)
int mnl_attr_validate(const struct nlattr *attr, enum mnl_attr_data_type type)
int mnl_attr_parse(const struct nlmsghdr *nlh, unsigned int offset, mnl_attr_cb_t cb, void *data)
int mnl_attr_type_valid(const struct nlattr *attr, uint16_t max)
uint16_t mnl_attr_get_type(const struct nlattr *attr)
int mnl_cb_run(const void *buf, size_t numbytes, unsigned int seq, unsigned int portid, mnl_cb_t cb_data, void *data)
void * mnl_nlmsg_get_payload(const struct nlmsghdr *nlh)
struct nlmsghdr * mnl_nlmsg_put_header(void *buf)
void * mnl_nlmsg_put_extra_header(struct nlmsghdr *nlh, size_t size)
int mnl_socket_close(struct mnl_socket *nl)
unsigned int mnl_socket_get_portid(const struct mnl_socket *nl)
struct mnl_socket * mnl_socket_open(int bus)
ssize_t mnl_socket_recvfrom(const struct mnl_socket *nl, void *buf, size_t bufsiz)
int mnl_socket_bind(struct mnl_socket *nl, unsigned int groups, pid_t pid)
ssize_t mnl_socket_sendto(const struct mnl_socket *nl, const void *buf, size_t len)