rtnl.c was copied from libnfnetlink for reference: it has now served its
purpose.
Without rtnl.c, doxygen again runs warning-free.
Signed-off-by: Duncan Roe <duncan_roe@xxxxxxxxxxxxxxx>
---
src/rtnl.c | 283 -----------------------------------------------------
1 file changed, 283 deletions(-)
delete mode 100644 src/rtnl.c
diff --git a/src/rtnl.c b/src/rtnl.c
deleted file mode 100644
index dff3bef..0000000
--- a/src/rtnl.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/* rtnl - rtnetlink utility functions
- *
- * (C) 2004 by Astaro AG, written by Harald Welte <hwelte@xxxxxxxxxx>
- *
- * Adapted to nfnetlink by Eric Leblond <eric@xxxxxx>
- *
- * This software is free software and licensed under GNU GPLv2+.
- *
- */
-
-/* rtnetlink - routing table netlink interface */
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <time.h>
-#include <sys/types.h>
-#include <sys/uio.h>
-
-#include <netinet/in.h>
-
-#include <linux/types.h>
-#include <sys/socket.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-
-#include "rtnl.h"
-
-#define rtnl_log(x, ...)
-
-static inline struct rtnl_handler *
-find_handler(struct rtnl_handle *rtnl_handle, uint16_t type)
-{
- struct rtnl_handler *h;
- for (h = rtnl_handle->handlers; h; h = h->next) {
- if (h->nlmsg_type == type)
- return h;
- }
- return NULL;
-}
-
-static int call_handler(struct rtnl_handle *rtnl_handle,
- uint16_t type,
- struct nlmsghdr *hdr)
-{
- struct rtnl_handler *h = find_handler(rtnl_handle, type);
-
- if (!h) {
- rtnl_log(LOG_DEBUG, "no registered handler for type %u", type);
- return 0;
- }
-
- return (h->handlefn)(hdr, h->arg);
-}
-
-/**
- * \defgroup rtnetlink Functions in rtnl.c [DEPRECATED]
- * This documentation is provided for the benefit of maintainers of legacy code.
- *
- * New applications should use
- * [libmnl](https://netfilter.org/projects/libmnl/doxygen/html/).
- * @{
- */
-
-/**
- * rtnl_handler_register - register handler for given nlmsg type
- * \param: rtnl_handle: Handler ftom rtnl_open()
- * \param: hdlr: callback handler structure
- */
-int rtnl_handler_register(struct rtnl_handle *rtnl_handle,
- struct rtnl_handler *hdlr)
-{
- rtnl_log(LOG_DEBUG, "registering handler for type %u",
- hdlr->nlmsg_type);
- hdlr->next = rtnl_handle->handlers;
- rtnl_handle->handlers = hdlr;
- return 1;
-}
-
-/**
- * rtnl_handler_unregister - unregister handler for given nlmst type
- * \param: hdlr: callback handler structure
- * \param: hdlr: handler structure
- */
-int rtnl_handler_unregister(struct rtnl_handle *rtnl_handle,
- struct rtnl_handler *hdlr)
-{
- struct rtnl_handler *h, *prev = NULL;
-
- rtnl_log(LOG_DEBUG, "unregistering handler for type %u",
- hdlr->nlmsg_type);
-
- for (h = rtnl_handle->handlers; h; h = h->next) {
- if (h == hdlr) {
- if (prev)
- prev->next = h->next;
- else
- rtnl_handle->handlers = h->next;
- return 1;
- }
- prev = h;
- }
- return 0;
-}
-
-int rtnl_parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, int len)
-{
- memset(tb, 0, sizeof(struct rtattr *) * max);
-
- while (RTA_OK(rta, len)) {
- if (rta->rta_type <= max)
- tb[rta->rta_type] = rta;
- rta = RTA_NEXT(rta,len);
- }
- if (len)
- return -1;
- return 0;
-}
-
-/* rtnl_dump_type - ask rtnetlink to dump a specific table
- * \param: type: type of table to be dumped
- */
-int rtnl_dump_type(struct rtnl_handle *rtnl_handle, unsigned int type)
-{
- struct {
- struct nlmsghdr nlh;
- struct rtgenmsg g;
- } req;
- struct sockaddr_nl nladdr;
-
- memset(&nladdr, 0, sizeof(nladdr));
- memset(&req, 0, sizeof(req));
- nladdr.nl_family = AF_NETLINK;
-
- req.nlh.nlmsg_len = sizeof(req);
- req.nlh.nlmsg_type = type;
- req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
- req.nlh.nlmsg_pid = 0;
- req.nlh.nlmsg_seq = rtnl_handle->rtnl_dump = ++(rtnl_handle->rtnl_seq);
- req.g.rtgen_family = AF_INET;
-
- return sendto(rtnl_handle->rtnl_fd, &req, sizeof(req), 0,
- (struct sockaddr*)&nladdr, sizeof(nladdr));
-}
-
-/* rtnl_receive - receive netlink packets from rtnetlink socket */
-int rtnl_receive(struct rtnl_handle *rtnl_handle)
-{
- int status;
- char buf[8192];
- struct sockaddr_nl nladdr;
- struct iovec iov = { buf, sizeof(buf) };
- struct nlmsghdr *h;
-
- struct msghdr msg = {
- .msg_name = &nladdr,
- .msg_namelen = sizeof(nladdr),
- .msg_iov = &iov,
- .msg_iovlen = 1,
- };
-
- status = recvmsg(rtnl_handle->rtnl_fd, &msg, 0);
- if (status < 0) {
- if (errno == EINTR)
- return 0;
- rtnl_log(LOG_NOTICE, "OVERRUN on rtnl socket");
- return -1;
- }
- if (status == 0) {
- rtnl_log(LOG_ERROR, "EOF on rtnl socket");
- return -1;
- }
- if (msg.msg_namelen != sizeof(nladdr)) {
- rtnl_log(LOG_ERROR, "invalid address size");
- return -1;
- }
-
- h = (struct nlmsghdr *) buf;
- while (NLMSG_OK(h, status)) {
-#if 0
- if (h->nlmsg_pid != rtnl_local.nl_pid ||
- h->nlmsg_seq != rtnl_dump) {
- goto skip;
- }
-#endif
-
- if (h->nlmsg_type == NLMSG_DONE) {
- rtnl_log(LOG_NOTICE, "NLMSG_DONE");
- return 0;
- }
- if (h->nlmsg_type == NLMSG_ERROR) {
- struct nlmsgerr *err = NLMSG_DATA(h);
- if (h->nlmsg_len>=NLMSG_LENGTH(sizeof(struct nlmsgerr)))
- errno = -err->error;
- rtnl_log(LOG_ERROR, "NLMSG_ERROR, errnp=%d",
- errno);
- return -1;
- }
-
- if (call_handler(rtnl_handle, h->nlmsg_type, h) == 0)
- rtnl_log(LOG_NOTICE, "unhandled nlmsg_type %u",
- h->nlmsg_type);
- h = NLMSG_NEXT(h, status);
- }
- return 1;
-}
-
-int rtnl_receive_multi(struct rtnl_handle *rtnl_handle)
-{
- while (1) {
- if (rtnl_receive(rtnl_handle) <= 0)
- break;
- }
- return 1;
-}
-
-/* rtnl_open - constructor of rtnetlink module */
-struct rtnl_handle *rtnl_open(void)
-{
- socklen_t addrlen;
- struct rtnl_handle *h;
-
- h = calloc(1, sizeof(struct rtnl_handle));
- if (!h)
- return NULL;
-
- addrlen = sizeof(h->rtnl_local);
-
- h->rtnl_local.nl_pid = getpid();
- h->rtnl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
- if (h->rtnl_fd < 0) {
- rtnl_log(LOG_ERROR, "unable to create rtnetlink socket");
- goto err;
- }
-
- memset(&h->rtnl_local, 0, sizeof(h->rtnl_local));
- h->rtnl_local.nl_family = AF_NETLINK;
- h->rtnl_local.nl_groups = RTMGRP_LINK;
- if (bind(h->rtnl_fd, (struct sockaddr *) &h->rtnl_local, addrlen) < 0) {
- rtnl_log(LOG_ERROR, "unable to bind rtnetlink socket");
- goto err_close;
- }
-
- if (getsockname(h->rtnl_fd,
- (struct sockaddr *) &h->rtnl_local,
- &addrlen) < 0) {
- rtnl_log(LOG_ERROR, "cannot gescockname(rtnl_socket)");
- goto err_close;
- }
-
- if (addrlen != sizeof(h->rtnl_local)) {
- rtnl_log(LOG_ERROR, "invalid address size %u", addr_len);
- goto err_close;
- }
-
- if (h->rtnl_local.nl_family != AF_NETLINK) {
- rtnl_log(LOG_ERROR, "invalid AF %u", h->rtnl_local.nl_family);
- goto err_close;
- }
-
- h->rtnl_seq = time(NULL);
-
- return h;
-
-err_close:
- close(h->rtnl_fd);
-err:
- free(h);
- return NULL;
-}
-
-/* rtnl_close - destructor of rtnetlink module */
-void rtnl_close(struct rtnl_handle *rtnl_handle)
-{
- close(rtnl_handle->rtnl_fd);
- free(rtnl_handle);
- return;
-}
-
-/**
- * @}
- */
--
2.35.8
