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-rw-r--r--examples/rtnl/rtnl-route-add.c81
1 files changed, 57 insertions, 24 deletions
diff --git a/examples/rtnl/rtnl-route-add.c b/examples/rtnl/rtnl-route-add.c
index 6d166da..dd810c9 100644
--- a/examples/rtnl/rtnl-route-add.c
+++ b/examples/rtnl/rtnl-route-add.c
@@ -14,63 +14,83 @@
int main(int argc, char *argv[])
{
+ struct mnl_socket *nl;
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ struct nlmsghdr *nlh;
+ struct rtmsg *rtm;
+ uint32_t prefix, seq, portid;
+ union {
+ in_addr_t ip;
+ struct in6_addr ip6;
+ } dst;
+ union {
+ in_addr_t ip;
+ struct in6_addr ip6;
+ } gw;
+ int iface, ret, family = AF_INET;
+
if (argc <= 3) {
printf("Usage: %s iface destination cidr [gateway]\n", argv[0]);
printf("Example: %s eth0 10.0.1.12 32 10.0.1.11\n", argv[0]);
+ printf(" %s eth0 ffff::10.0.1.12 128 fdff::1\n", argv[0]);
exit(EXIT_FAILURE);
}
- int iface;
iface = if_nametoindex(argv[1]);
if (iface == 0) {
- printf("Bad interface name\n");
+ perror("if_nametoindex");
exit(EXIT_FAILURE);
}
- in_addr_t dst;
if (!inet_pton(AF_INET, argv[2], &dst)) {
- printf("Bad destination\n");
- exit(EXIT_FAILURE);
+ if (!inet_pton(AF_INET6, argv[2], &dst)) {
+ perror("inet_pton");
+ exit(EXIT_FAILURE);
+ }
+ family = AF_INET6;
}
- uint32_t mask;
- if (sscanf(argv[3], "%u", &mask) == 0) {
- printf("Bad CIDR\n");
+ if (sscanf(argv[3], "%u", &prefix) == 0) {
+ perror("sscanf");
exit(EXIT_FAILURE);
}
- in_addr_t gw;
- if (argc >= 5 && !inet_pton(AF_INET, argv[4], &gw)) {
- printf("Bad gateway\n");
+ if (argc == 5 && !inet_pton(family, argv[4], &gw)) {
+ perror("inet_pton");
exit(EXIT_FAILURE);
}
- struct mnl_socket *nl;
- char buf[MNL_SOCKET_BUFFER_SIZE];
- struct nlmsghdr *nlh;
- struct rtmsg *rtm;
-
nlh = mnl_nlmsg_put_header(buf);
nlh->nlmsg_type = RTM_NEWROUTE;
- nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE;
- nlh->nlmsg_seq = time(NULL);
+ nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
+ nlh->nlmsg_seq = seq = time(NULL);
rtm = mnl_nlmsg_put_extra_header(nlh, sizeof(struct rtmsg));
- rtm->rtm_family = AF_INET;
- rtm->rtm_dst_len = mask;
+ rtm->rtm_family = family;
+ rtm->rtm_dst_len = prefix;
rtm->rtm_src_len = 0;
rtm->rtm_tos = 0;
- rtm->rtm_protocol = RTPROT_BOOT;
+ rtm->rtm_protocol = RTPROT_STATIC;
rtm->rtm_table = RT_TABLE_MAIN;
rtm->rtm_type = RTN_UNICAST;
/* is there any gateway? */
rtm->rtm_scope = (argc == 4) ? RT_SCOPE_LINK : RT_SCOPE_UNIVERSE;
rtm->rtm_flags = 0;
- mnl_attr_put_u32(nlh, RTA_DST, dst);
+ if (family == AF_INET)
+ mnl_attr_put_u32(nlh, RTA_DST, dst.ip);
+ else
+ mnl_attr_put(nlh, RTA_DST, sizeof(struct in6_addr), &dst);
+
mnl_attr_put_u32(nlh, RTA_OIF, iface);
- if (argc >= 5)
- mnl_attr_put_u32(nlh, RTA_GATEWAY, gw);
+ if (argc == 5) {
+ if (family == AF_INET)
+ mnl_attr_put_u32(nlh, RTA_GATEWAY, gw.ip);
+ else {
+ mnl_attr_put(nlh, RTA_DST, sizeof(struct in6_addr),
+ &gw.ip6);
+ }
+ }
nl = mnl_socket_open(NETLINK_ROUTE);
if (nl == NULL) {
@@ -82,12 +102,25 @@ int main(int argc, char *argv[])
perror("mnl_socket_bind");
exit(EXIT_FAILURE);
}
+ portid = mnl_socket_get_portid(nl);
if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
perror("mnl_socket_send");
exit(EXIT_FAILURE);
}
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
+ if (ret < 0) {
+ perror("mnl_socket_recvfrom");
+ exit(EXIT_FAILURE);
+ }
+
+ ret = mnl_cb_run(buf, ret, seq, portid, NULL, NULL);
+ if (ret < 0) {
+ perror("mnl_cb_run");
+ exit(EXIT_FAILURE);
+ }
+
mnl_socket_close(nl);
return 0;