/* vi: set sw=4 ts=4: */
/*
- * libnetlink.c RTnetlink service routines.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
*
+ * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*/
#include <sys/socket.h>
#include "libbb.h"
#include "libnetlink.h"
-void FAST_FUNC rtnl_close(struct rtnl_handle *rth)
-{
- close(rth->fd);
-}
-
-int FAST_FUNC xrtnl_open(struct rtnl_handle *rth/*, unsigned subscriptions*/)
+void FAST_FUNC xrtnl_open(struct rtnl_handle *rth/*, unsigned subscriptions*/)
{
socklen_t addr_len;
bb_error_msg_and_die("wrong address family %d", rth->local.nl_family);
*/
rth->seq = time(NULL);
- return 0;
}
int FAST_FUNC xrtnl_wilddump_request(struct rtnl_handle *rth, int family, int type)
struct nlmsghdr nlh;
struct rtgenmsg g;
} req;
- struct sockaddr_nl nladdr;
-
- memset(&nladdr, 0, sizeof(nladdr));
- nladdr.nl_family = AF_NETLINK;
req.nlh.nlmsg_len = sizeof(req);
req.nlh.nlmsg_type = type;
req.nlh.nlmsg_seq = rth->dump = ++rth->seq;
req.g.rtgen_family = family;
- return xsendto(rth->fd, (void*)&req, sizeof(req),
- (struct sockaddr*)&nladdr, sizeof(nladdr));
+ return rtnl_send(rth, (void*)&req, sizeof(req));
}
+//TODO: pass rth->fd instead of full rth?
int FAST_FUNC rtnl_send(struct rtnl_handle *rth, char *buf, int len)
{
struct sockaddr_nl nladdr;
struct iovec iov[2] = { { &nlh, sizeof(nlh) }, { req, len } };
struct msghdr msg = {
(void*)&nladdr, sizeof(nladdr),
- iov, 2,
- NULL, 0,
+ iov, 2,
+ NULL, 0,
0
};
struct msghdr msg = {
(void*)&nladdr, sizeof(nladdr),
- &iov, 1,
- NULL, 0,
+ &iov, 1,
+ NULL, 0,
0
};
char *buf = xmalloc(8*1024); /* avoid big stack buffer */
struct msghdr msg = {
(void*)&nladdr, sizeof(nladdr),
- &iov, 1,
- NULL, 0,
+ &iov, 1,
+ NULL, 0,
0
};
{
int len = RTA_LENGTH(4);
struct rtattr *rta;
- if ((int)(NLMSG_ALIGN(n->nlmsg_len) + len) > maxlen)
+
+ if ((int)(NLMSG_ALIGN(n->nlmsg_len) + len) > maxlen) {
return -1;
+ }
rta = (struct rtattr*)(((char*)n) + NLMSG_ALIGN(n->nlmsg_len));
rta->rta_type = type;
rta->rta_len = len;
int len = RTA_LENGTH(alen);
struct rtattr *rta;
- if ((int)(NLMSG_ALIGN(n->nlmsg_len) + len) > maxlen)
+ if ((int)(NLMSG_ALIGN(n->nlmsg_len) + len) > maxlen) {
return -1;
+ }
rta = (struct rtattr*)(((char*)n) + NLMSG_ALIGN(n->nlmsg_len));
rta->rta_type = type;
rta->rta_len = len;
}
-int FAST_FUNC parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, int len)
+void FAST_FUNC parse_rtattr(struct rtattr *tb[], int max, struct rtattr *rta, int len)
{
while (RTA_OK(rta, len)) {
if (rta->rta_type <= max) {
tb[rta->rta_type] = rta;
}
- rta = RTA_NEXT(rta,len);
+ rta = RTA_NEXT(rta, len);
}
if (len) {
bb_error_msg("deficit %d, rta_len=%d!", len, rta->rta_len);
}
- return 0;
}