#include <string.h>
#include <sys/socket.h>
#include <linux/if_link.h>
+#include <errno.h>
#include "rt_names.h"
#include "utils.h"
return;
if (tb[IFLA_VRF_TABLE])
- fprintf(f, "table %u ", rta_getattr_u32(tb[IFLA_VRF_TABLE]));
+ print_uint(PRINT_ANY,
+ "table",
+ "table %u ",
+ rta_getattr_u32(tb[IFLA_VRF_TABLE]));
}
static void vrf_slave_print_opt(struct link_util *lu, FILE *f,
return;
if (tb[IFLA_VRF_PORT_TABLE]) {
- fprintf(f, "table %u ",
- rta_getattr_u32(tb[IFLA_VRF_PORT_TABLE]));
+ print_uint(PRINT_ANY,
+ "table",
+ "table %u ",
+ rta_getattr_u32(tb[IFLA_VRF_PORT_TABLE]));
}
}
static void vrf_print_help(struct link_util *lu, int argc, char **argv,
- FILE *f)
+ FILE *f)
{
vrf_explain(f);
}
.ifi_family = preferred_family,
},
};
- struct {
- struct nlmsghdr n;
- char buf[8192];
- } answer;
+ struct nlmsghdr *answer;
struct rtattr *tb[IFLA_MAX+1];
struct rtattr *li[IFLA_INFO_MAX+1];
struct rtattr *vrf_attr[IFLA_VRF_MAX + 1];
addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name, strlen(name) + 1);
- if (rtnl_talk(&rth, &req.n, &answer.n, sizeof(answer)) < 0)
- return 0;
+ if (rtnl_talk_suppress_rtnl_errmsg(&rth, &req.n, &answer) < 0) {
+ /* special case "default" vrf to be the main table */
+ if (errno == ENODEV && !strcmp(name, "default"))
+ if (rtnl_rttable_a2n(&tb_id, "main"))
+ fprintf(stderr,
+ "BUG: RTTable \"main\" not found.\n");
+
+ return tb_id;
+ }
- ifi = NLMSG_DATA(&answer.n);
- len = answer.n.nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
+ ifi = NLMSG_DATA(answer);
+ len = answer->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
if (len < 0) {
fprintf(stderr, "BUG: Invalid response to link query.\n");
- return 0;
+ goto out;
}
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
if (!tb[IFLA_LINKINFO])
- return 0;
+ goto out;
parse_rtattr_nested(li, IFLA_INFO_MAX, tb[IFLA_LINKINFO]);
if (!li[IFLA_INFO_KIND] || !li[IFLA_INFO_DATA])
- return 0;
+ goto out;
if (strcmp(RTA_DATA(li[IFLA_INFO_KIND]), "vrf"))
- return 0;
+ goto out;
parse_rtattr_nested(vrf_attr, IFLA_VRF_MAX, li[IFLA_INFO_DATA]);
if (vrf_attr[IFLA_VRF_TABLE])
if (!tb_id)
fprintf(stderr, "BUG: VRF %s is missing table id\n", name);
+out:
+ free(answer);
return tb_id;
}
.ifi_family = preferred_family,
},
};
- struct {
- struct nlmsghdr n;
- char buf[8192];
- } answer;
+ struct nlmsghdr *answer;
struct rtattr *tb[IFLA_MAX+1];
struct rtattr *li[IFLA_INFO_MAX+1];
struct ifinfomsg *ifi;
+ int ifindex = 0;
int len;
addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name, strlen(name) + 1);
- if (rtnl_talk(&rth, &req.n, &answer.n, sizeof(answer)) < 0)
+ if (rtnl_talk_suppress_rtnl_errmsg(&rth, &req.n, &answer) < 0)
return 0;
- ifi = NLMSG_DATA(&answer.n);
- len = answer.n.nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
+ ifi = NLMSG_DATA(answer);
+ len = answer->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi));
if (len < 0) {
fprintf(stderr, "BUG: Invalid response to link query.\n");
- return 0;
+ goto out;
}
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
if (!tb[IFLA_LINKINFO])
- return 0;
+ goto out;
parse_rtattr_nested(li, IFLA_INFO_MAX, tb[IFLA_LINKINFO]);
if (!li[IFLA_INFO_KIND])
- return 0;
+ goto out;
if (strcmp(RTA_DATA(li[IFLA_INFO_KIND]), "vrf"))
- return 0;
+ goto out;
- return ifi->ifi_index;
+ ifindex = ifi->ifi_index;
+out:
+ free(answer);
+ return ifindex;
}