#include <netinet/ether.h>
#include <stdbool.h>
#include <unistd.h>
-#include <linux/netlink.h>
-#include <linux/veth.h>
-#include <linux/if.h>
-#include <linux/ip.h>
-#include <linux/if_tunnel.h>
-#include <linux/if_bridge.h>
#include "util.h"
#include "refcnt.h"
#define GET_CONTAINER(m, i) ((i) < (m)->n_containers ? (struct rtattr*)((uint8_t*)(m)->hdr + (m)->container_offsets[i]) : NULL)
#define PUSH_CONTAINER(m, new) (m)->container_offsets[(m)->n_containers ++] = (uint8_t*)(new) - (uint8_t*)(m)->hdr;
+#define RTA_TYPE(rta) ((rta)->rta_type & NLA_TYPE_MASK)
+
static int message_new_empty(sd_rtnl *rtnl, sd_rtnl_message **ret) {
sd_rtnl_message *m;
return 0;
}
+int sd_rtnl_message_link_set_family(sd_rtnl_message *m, unsigned family) {
+ struct ifinfomsg *ifi;
+
+ assert_return(m, -EINVAL);
+ assert_return(m->hdr, -EINVAL);
+ assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
+
+ ifi = NLMSG_DATA(m->hdr);
+
+ ifi->ifi_family = family;
+
+ return 0;
+}
+
int sd_rtnl_message_new_link(sd_rtnl *rtnl, sd_rtnl_message **ret,
uint16_t nlmsg_type, int index) {
struct ifinfomsg *ifi;
/* if no data was passed, make sure we still initialize the padding
note that we can have data_length > 0 (used by some containers) */
padding = RTA_DATA(rta);
- data_length = 0;
}
/* make sure also the padding at the end of the message is initialized */
if (r < 0)
return r;
- r = add_rtattr(m, type, NULL, size);
+ r = add_rtattr(m, type | NLA_F_NESTED, NULL, size);
if (r < 0)
return r;
*rta_tb_size = max + 1;
for (; RTA_OK(rta, rt_len); rta = RTA_NEXT(rta, rt_len)) {
- type = rta->rta_type;
+ type = RTA_TYPE(rta);
/* if the kernel is newer than the headers we used
when building, we ignore out-of-range attributes
assert(iov);
r = recvmsg(fd, &msg, MSG_TRUNC | (peek ? MSG_PEEK : 0));
- if (r < 0)
+ if (r < 0) {
/* no data */
+ if (errno == ENOBUFS)
+ log_debug("rtnl: kernel receive buffer overrun");
+
return (errno == EAGAIN) ? 0 : -errno;
- else if (r == 0)
+ } else if (r == 0)
/* connection was closed by the kernel */
return -ECONNRESET;