#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
-#include <syslog.h>
#include <fcntl.h>
+#include <inttypes.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <linux/if_arp.h>
#include <linux/sockios.h>
+#include <rt_names.h>
#include "utils.h"
-
-char filter_dev[16];
-int filter_family;
+#include "ip_common.h"
+#include "json_print.h"
static void usage(void) __attribute__((noreturn));
static void usage(void)
{
- fprintf(stderr, "Usage: ip mroute show [ PREFIX ] [ from PREFIX ] [ iif DEVICE ]\n");
+ fprintf(stderr, "Usage: ip mroute show [ [ to ] PREFIX ] [ from PREFIX ] [ iif DEVICE ]\n");
+ fprintf(stderr, " [ table TABLE_ID ]\n");
+ fprintf(stderr, "TABLE_ID := [ local | main | default | all | NUMBER ]\n");
#if 0
fprintf(stderr, "Usage: ip mroute [ add | del ] DESTINATION from SOURCE [ iif DEVICE ] [ oif DEVICE ]\n");
#endif
exit(-1);
}
-static char *viftable[32];
-
-struct rtfilter
-{
+struct rtfilter {
+ int tb;
+ int af;
+ int iif;
inet_prefix mdst;
inet_prefix msrc;
} filter;
-static void read_viftable(void)
+int print_mroute(struct nlmsghdr *n, void *arg)
{
- char buf[256];
- FILE *fp = fopen("/proc/net/ip_mr_vif", "r");
+ struct rtmsg *r = NLMSG_DATA(n);
+ int len = n->nlmsg_len;
+ struct rtattr *tb[RTA_MAX+1];
+ const char *src, *dst;
+ SPRINT_BUF(b1);
+ SPRINT_BUF(b2);
+ __u32 table;
+ int iif = 0;
+ int family;
+
+ if ((n->nlmsg_type != RTM_NEWROUTE &&
+ n->nlmsg_type != RTM_DELROUTE)) {
+ fprintf(stderr, "Not a multicast route: %08x %08x %08x\n",
+ n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
+ return 0;
+ }
+ len -= NLMSG_LENGTH(sizeof(*r));
+ if (len < 0) {
+ fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
+ return -1;
+ }
- if (!fp)
- return;
+ if (r->rtm_type != RTN_MULTICAST) {
+ fprintf(stderr,
+ "Non multicast route received, kernel does support IP multicast?\n");
+ return -1;
+ }
- fgets(buf, sizeof(buf), fp);
+ parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
+ table = rtm_get_table(r, tb);
- while (fgets(buf, sizeof(buf), fp)) {
- int vifi;
- char dev[256];
+ if (filter.tb > 0 && filter.tb != table)
+ return 0;
- if (sscanf(buf, "%d%s", &vifi, dev) < 2)
- continue;
+ if (tb[RTA_IIF])
+ iif = rta_getattr_u32(tb[RTA_IIF]);
+ if (filter.iif && filter.iif != iif)
+ return 0;
- if (vifi<0 || vifi>31)
- continue;
+ if (filter.af && filter.af != r->rtm_family)
+ return 0;
- viftable[vifi] = strdup(dev);
- }
- fclose(fp);
-}
+ if (inet_addr_match_rta(&filter.mdst, tb[RTA_DST]))
+ return 0;
-static void read_mroute_list(FILE *ofp)
-{
- char buf[256];
- FILE *fp = fopen("/proc/net/ip_mr_cache", "r");
+ if (inet_addr_match_rta(&filter.msrc, tb[RTA_SRC]))
+ return 0;
+
+ family = get_real_family(r->rtm_type, r->rtm_family);
+
+ open_json_object(NULL);
+ if (n->nlmsg_type == RTM_DELROUTE)
+ print_bool(PRINT_ANY, "deleted", "Deleted ", true);
- if (!fp)
- return;
+ if (tb[RTA_SRC])
+ src = rt_addr_n2a_r(family, RTA_PAYLOAD(tb[RTA_SRC]),
+ RTA_DATA(tb[RTA_SRC]), b1, sizeof(b1));
+ else
+ src = "unknown";
- fgets(buf, sizeof(buf), fp);
+ if (tb[RTA_DST])
+ dst = rt_addr_n2a_r(family, RTA_PAYLOAD(tb[RTA_DST]),
+ RTA_DATA(tb[RTA_DST]), b2, sizeof(b2));
+ else
+ dst = "unknown";
- while (fgets(buf, sizeof(buf), fp)) {
- inet_prefix maddr, msrc;
- unsigned pkts, b, w;
- int vifi;
- char oiflist[256];
- char sbuf[256];
- char mbuf[256];
+ if (is_json_context()) {
+ print_string(PRINT_JSON, "src", NULL, src);
+ print_string(PRINT_JSON, "dst", NULL, dst);
+ } else {
char obuf[256];
- oiflist[0] = 0;
- if (sscanf(buf, "%x%x%d%u%u%u%s", maddr.data, msrc.data, &vifi,
- &pkts, &b, &w, oiflist) < 6)
- continue;
+ snprintf(obuf, sizeof(obuf), "(%s,%s)", src, dst);
+ print_string(PRINT_FP, NULL,
+ "%-32s Iif: ", obuf);
+ }
- if (vifi!=-1 && (vifi < 0 || vifi>31))
- continue;
+ if (iif)
+ print_color_string(PRINT_ANY, COLOR_IFNAME,
+ "iif", "%-10s ", ll_index_to_name(iif));
+ else
+ print_string(PRINT_ANY,"iif", "%s ", "unresolved");
+
+ if (tb[RTA_MULTIPATH]) {
+ struct rtnexthop *nh = RTA_DATA(tb[RTA_MULTIPATH]);
+ int first = 1;
+
+ open_json_array(PRINT_JSON, "multipath");
+ len = RTA_PAYLOAD(tb[RTA_MULTIPATH]);
+
+ for (;;) {
+ if (len < sizeof(*nh))
+ break;
+ if (nh->rtnh_len > len)
+ break;
+
+ open_json_object(NULL);
+ if (first) {
+ print_string(PRINT_FP, NULL, "Oifs: ", NULL);
+ first = 0;
+ }
- if (filter_dev[0] && (vifi<0 || strcmp(filter_dev, viftable[vifi])))
- continue;
- if (filter.mdst.family && inet_addr_match(&maddr, &filter.mdst, filter.mdst.bitlen))
- continue;
- if (filter.msrc.family && inet_addr_match(&msrc, &filter.msrc, filter.msrc.bitlen))
- continue;
+ print_color_string(PRINT_ANY, COLOR_IFNAME,
+ "oif", "%s", ll_index_to_name(nh->rtnh_ifindex));
- snprintf(obuf, sizeof(obuf), "(%s, %s)",
- format_host(AF_INET, 4, &msrc.data[0], sbuf, sizeof(sbuf)),
- format_host(AF_INET, 4, &maddr.data[0], mbuf, sizeof(mbuf)));
+ if (nh->rtnh_hops > 1)
+ print_uint(PRINT_ANY,
+ "ttl", "(ttl %u) ", nh->rtnh_hops);
+ else
+ print_string(PRINT_FP, NULL, " ", NULL);
- fprintf(ofp, "%-32s Iif: ", obuf);
+ close_json_object();
+ len -= NLMSG_ALIGN(nh->rtnh_len);
+ nh = RTNH_NEXT(nh);
+ }
+ close_json_array(PRINT_JSON, NULL);
+ }
- if (vifi == -1)
- fprintf(ofp, "unresolved ");
- else
- fprintf(ofp, "%-10s ", viftable[vifi]);
+ print_string(PRINT_ANY, "state", " State: %s",
+ (r->rtm_flags & RTNH_F_UNRESOLVED) ? "unresolved" : "resolved");
- if (oiflist[0]) {
- char *next = NULL;
- char *p = oiflist;
- int ovifi, ottl;
+ if (r->rtm_flags & RTNH_F_OFFLOAD)
+ print_null(PRINT_ANY, "offload", " offload", NULL);
- fprintf(ofp, "Oifs: ");
+ if (show_stats && tb[RTA_MFC_STATS]) {
+ struct rta_mfc_stats *mfcs = RTA_DATA(tb[RTA_MFC_STATS]);
- while (p) {
- next = strchr(p, ' ');
- if (next) {
- *next = 0;
- next++;
- }
- if (sscanf(p, "%d:%d", &ovifi, &ottl)<2) {
- p = next;
- continue;
- }
- p = next;
+ print_nl();
+ print_u64(PRINT_ANY, "packets", " %"PRIu64" packets,",
+ mfcs->mfcs_packets);
+ print_u64(PRINT_ANY, "bytes", " %"PRIu64" bytes", mfcs->mfcs_bytes);
- fprintf(ofp, "%s", viftable[ovifi]);
- if (ottl>1)
- fprintf(ofp, "(ttl %d) ", ovifi);
- else
- fprintf(ofp, " ");
- }
- }
+ if (mfcs->mfcs_wrong_if)
+ print_u64(PRINT_ANY, "wrong_if",
+ ", %"PRIu64" arrived on wrong iif.",
+ mfcs->mfcs_wrong_if);
+ }
- if (show_stats && b) {
- fprintf(ofp, "%s %u packets, %u bytes", _SL_, pkts, b);
- if (w)
- fprintf(ofp, ", %u arrived on wrong iif.", w);
- }
- fprintf(ofp, "\n");
+ if (show_stats && tb[RTA_EXPIRES]) {
+ struct timeval tv;
+ double age;
+
+ __jiffies_to_tv(&tv, rta_getattr_u64(tb[RTA_EXPIRES]));
+ age = tv.tv_sec;
+ age += tv.tv_usec / 1000000.;
+ print_float(PRINT_ANY, "expires",
+ ", Age %.2f", age);
}
- fclose(fp);
+
+ if (table && (table != RT_TABLE_MAIN || show_details > 0) && !filter.tb)
+ print_string(PRINT_ANY, "table", " Table: %s",
+ rtnl_rttable_n2a(table, b1, sizeof(b1)));
+
+ print_string(PRINT_FP, NULL, "\n", NULL);
+ close_json_object();
+ return 0;
}
+void ipmroute_reset_filter(int ifindex)
+{
+ memset(&filter, 0, sizeof(filter));
+ filter.mdst.bitlen = -1;
+ filter.msrc.bitlen = -1;
+ filter.iif = ifindex;
+}
static int mroute_list(int argc, char **argv)
{
+ char *id = NULL;
+ int family = preferred_family;
+
+ ipmroute_reset_filter(0);
+ if (family == AF_INET || family == AF_UNSPEC) {
+ family = RTNL_FAMILY_IPMR;
+ filter.af = RTNL_FAMILY_IPMR;
+ filter.tb = RT_TABLE_DEFAULT; /* for backward compatibility */
+ } else if (family == AF_INET6) {
+ family = RTNL_FAMILY_IP6MR;
+ filter.af = RTNL_FAMILY_IP6MR;
+ } else {
+ /* family does not have multicast routing */
+ return 0;
+ }
+
+ filter.msrc.family = filter.mdst.family = family;
+
while (argc > 0) {
- if (strcmp(*argv, "iif") == 0) {
+ if (matches(*argv, "table") == 0) {
+ __u32 tid;
+
NEXT_ARG();
- strncpy(filter_dev, *argv, sizeof(filter_dev)-1);
+ if (rtnl_rttable_a2n(&tid, *argv)) {
+ if (strcmp(*argv, "all") == 0) {
+ filter.tb = 0;
+ } else if (strcmp(*argv, "help") == 0) {
+ usage();
+ } else {
+ invarg("table id value is invalid\n", *argv);
+ }
+ } else
+ filter.tb = tid;
+ } else if (strcmp(*argv, "iif") == 0) {
+ NEXT_ARG();
+ id = *argv;
} else if (matches(*argv, "from") == 0) {
NEXT_ARG();
- get_prefix(&filter.msrc, *argv, AF_INET);
+ if (get_prefix(&filter.msrc, *argv, family))
+ invarg("from value is invalid\n", *argv);
} else {
if (strcmp(*argv, "to") == 0) {
NEXT_ARG();
}
if (matches(*argv, "help") == 0)
usage();
- get_prefix(&filter.mdst, *argv, AF_INET);
+ if (get_prefix(&filter.mdst, *argv, family))
+ invarg("to value is invalid\n", *argv);
}
- argv++; argc--;
+ argc--; argv++;
+ }
+
+ ll_init_map(&rth);
+
+ if (id) {
+ int idx;
+
+ idx = ll_name_to_index(id);
+ if (!idx)
+ return nodev(id);
+ filter.iif = idx;
+ }
+
+ if (rtnl_routedump_req(&rth, filter.af, NULL) < 0) {
+ perror("Cannot send dump request");
+ return 1;
+ }
+
+ new_json_obj(json);
+ if (rtnl_dump_filter(&rth, print_mroute, stdout) < 0) {
+ delete_json_obj();
+ fprintf(stderr, "Dump terminated\n");
+ exit(1);
}
+ delete_json_obj();
- read_viftable();
- read_mroute_list(stdout);
return 0;
}
projects / mirror_iproute2.git / blobdiff