Bharati Bhole wrote:
Could anyone please tell me, how to register a socket to get neighbour
table update call back.
For example, one can get route table update, by creating a netlink
socket and registering it in "nl_groups" and then setting function
pointer "sk_data_ready" from sk.
This invoks the function pointer by "sk_data_ready" whenever route
table is modified.
Could somebody please tell the procedure to get the neighbour table callbacks .
You mean neighbour discovery table? (radvd)?
Iam not sure if this is what ur looking for, but you can do something like
int fd = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
memset(&localaddrinfo, 0, sizeof(struct sockaddr_nl));
memset(&in6pAddr, '\0', sizeof(in6pAddr));
groups |= RTMGRP_IPV6_IFADDR;
groups |= RTMGRP_IPV6_PREFIX;
localaddrinfo.nl_family = AF_NETLINK;
localaddrinfo.nl_groups = groups;
if (bind(fd, (struct sockaddr*)&localaddrinfo,
sizeof(localaddrinfo)) < 0) {
snmp_log(LOG_ERR,"Bind failed. Exiting thread\n");
exit(0);
}
memset(&req, 0, sizeof(req));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ROOT;
req.n.nlmsg_type = RTM_GETLINK;
req.r.ifi_family = AF_INET6;
rta = (struct rtattr *)(((char *)&req) + NLMSG_ALIGN(req.n.nlmsg_len));
rta->rta_len = RTA_LENGTH(16);
status = send(fd, &req, req.n.nlmsg_len, 0);
if (status < 0) {
snmp_log(LOG_ERR,"Send failed. Exiting thread\n");
exit(0);
}
Regards,
Varun
Regards,
Bharati.
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