+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Get/set/delete fdb table with netlink
*
#include <linux/neighbour.h>
#include <string.h>
#include <limits.h>
+#include <stdbool.h>
+#include "json_print.h"
#include "libnetlink.h"
#include "br_common.h"
#include "rt_names.h"
#include "utils.h"
-static unsigned int filter_index;
+static unsigned int filter_index, filter_vlan, filter_state;
static void usage(void)
{
- fprintf(stderr, "Usage: bridge fdb { add | append | del | replace ADDR dev DEV\n"
- " [ self ] [ master ] [ use ] [ router ]\n"
- " [ local | temp ] [ dst IPADDR ] [ vlan VID ]\n"
- " [ port PORT] [ vni VNI ] [via DEV]\n");
- fprintf(stderr, " bridge fdb {show} [ br BRDEV ] [ brport DEV ]\n");
+ fprintf(stderr,
+ "Usage: bridge fdb { add | append | del | replace } ADDR dev DEV\n"
+ " [ self ] [ master ] [ use ] [ router ] [ extern_learn ]\n"
+ " [ sticky ] [ local | static | dynamic ] [ dst IPADDR ]\n"
+ " [ vlan VID ] [ port PORT] [ vni VNI ] [ via DEV ]\n"
+ " bridge fdb [ show [ br BRDEV ] [ brport DEV ] [ vlan VID ] [ state STATE ] ]\n");
exit(-1);
}
-static const char *state_n2a(unsigned s)
+static const char *state_n2a(unsigned int s)
{
static char buf[32];
return buf;
}
-int print_fdb(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
+static int state_a2n(unsigned int *s, const char *arg)
+{
+ if (matches(arg, "permanent") == 0)
+ *s = NUD_PERMANENT;
+ else if (matches(arg, "static") == 0 || matches(arg, "temp") == 0)
+ *s = NUD_NOARP;
+ else if (matches(arg, "stale") == 0)
+ *s = NUD_STALE;
+ else if (matches(arg, "reachable") == 0 || matches(arg, "dynamic") == 0)
+ *s = NUD_REACHABLE;
+ else if (strcmp(arg, "all") == 0)
+ *s = ~0;
+ else if (get_unsigned(s, arg, 0))
+ return -1;
+
+ return 0;
+}
+
+static void fdb_print_flags(FILE *fp, unsigned int flags)
+{
+ open_json_array(PRINT_JSON,
+ is_json_context() ? "flags" : "");
+
+ if (flags & NTF_SELF)
+ print_string(PRINT_ANY, NULL, "%s ", "self");
+
+ if (flags & NTF_ROUTER)
+ print_string(PRINT_ANY, NULL, "%s ", "router");
+
+ if (flags & NTF_EXT_LEARNED)
+ print_string(PRINT_ANY, NULL, "%s ", "extern_learn");
+
+ if (flags & NTF_OFFLOADED)
+ print_string(PRINT_ANY, NULL, "%s ", "offload");
+
+ if (flags & NTF_MASTER)
+ print_string(PRINT_ANY, NULL, "%s ", "master");
+
+ if (flags & NTF_STICKY)
+ print_string(PRINT_ANY, NULL, "%s ", "sticky");
+
+ close_json_array(PRINT_JSON, NULL);
+}
+
+static void fdb_print_stats(FILE *fp, const struct nda_cacheinfo *ci)
+{
+ static int hz;
+
+ if (!hz)
+ hz = get_user_hz();
+
+ if (is_json_context()) {
+ print_uint(PRINT_JSON, "used", NULL,
+ ci->ndm_used / hz);
+ print_uint(PRINT_JSON, "updated", NULL,
+ ci->ndm_updated / hz);
+ } else {
+ fprintf(fp, "used %d/%d ", ci->ndm_used / hz,
+ ci->ndm_updated / hz);
+
+ }
+}
+
+int print_fdb(struct nlmsghdr *n, void *arg)
{
FILE *fp = arg;
struct ndmsg *r = NLMSG_DATA(n);
int len = n->nlmsg_len;
- struct rtattr * tb[NDA_MAX+1];
+ struct rtattr *tb[NDA_MAX+1];
+ __u16 vid = 0;
if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) {
fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
-
return 0;
}
if (filter_index && filter_index != r->ndm_ifindex)
return 0;
+ if (filter_state && !(r->ndm_state & filter_state))
+ return 0;
+
parse_rtattr(tb, NDA_MAX, NDA_RTA(r),
n->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
+ if (tb[NDA_VLAN])
+ vid = rta_getattr_u16(tb[NDA_VLAN]);
+
+ if (filter_vlan && filter_vlan != vid)
+ return 0;
+
+ open_json_object(NULL);
if (n->nlmsg_type == RTM_DELNEIGH)
- fprintf(fp, "Deleted ");
+ print_bool(PRINT_ANY, "deleted", "Deleted ", true);
if (tb[NDA_LLADDR]) {
+ const char *lladdr;
SPRINT_BUF(b1);
- fprintf(fp, "%s ",
- ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
- RTA_PAYLOAD(tb[NDA_LLADDR]),
- ll_index_to_type(r->ndm_ifindex),
- b1, sizeof(b1)));
+
+ lladdr = ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]),
+ RTA_PAYLOAD(tb[NDA_LLADDR]),
+ ll_index_to_type(r->ndm_ifindex),
+ b1, sizeof(b1));
+
+ print_color_string(PRINT_ANY, COLOR_MAC,
+ "mac", "%s ", lladdr);
}
if (!filter_index && r->ndm_ifindex)
- fprintf(fp, "dev %s ", ll_index_to_name(r->ndm_ifindex));
+ print_color_string(PRINT_ANY, COLOR_IFNAME,
+ "ifname", "dev %s ",
+ ll_index_to_name(r->ndm_ifindex));
if (tb[NDA_DST]) {
- SPRINT_BUF(abuf);
int family = AF_INET;
+ const char *dst;
if (RTA_PAYLOAD(tb[NDA_DST]) == sizeof(struct in6_addr))
family = AF_INET6;
- fprintf(fp, "dst %s ",
- format_host(family,
- RTA_PAYLOAD(tb[NDA_DST]),
- RTA_DATA(tb[NDA_DST]),
- abuf, sizeof(abuf)));
- }
+ dst = format_host(family,
+ RTA_PAYLOAD(tb[NDA_DST]),
+ RTA_DATA(tb[NDA_DST]));
- if (tb[NDA_VLAN]) {
- __u16 vid = rta_getattr_u16(tb[NDA_VLAN]);
- fprintf(fp, "vlan %hu ", vid);
+ print_color_string(PRINT_ANY,
+ ifa_family_color(family),
+ "dst", "dst %s ", dst);
}
+ if (vid)
+ print_uint(PRINT_ANY,
+ "vlan", "vlan %hu ", vid);
+
if (tb[NDA_PORT])
- fprintf(fp, "port %d ", ntohs(rta_getattr_u16(tb[NDA_PORT])));
+ print_uint(PRINT_ANY,
+ "port", "port %u ",
+ rta_getattr_be16(tb[NDA_PORT]));
+
if (tb[NDA_VNI])
- fprintf(fp, "vni %d ", rta_getattr_u32(tb[NDA_VNI]));
+ print_uint(PRINT_ANY,
+ "vni", "vni %u ",
+ rta_getattr_u32(tb[NDA_VNI]));
+
+ if (tb[NDA_SRC_VNI])
+ print_uint(PRINT_ANY,
+ "src_vni", "src_vni %u ",
+ rta_getattr_u32(tb[NDA_SRC_VNI]));
+
if (tb[NDA_IFINDEX]) {
unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]);
- if (ifindex) {
- char ifname[IF_NAMESIZE];
-
- if (!tb[NDA_LINK_NETNSID] &&
- if_indextoname(ifindex, ifname))
- fprintf(fp, "via %s ", ifname);
- else
- fprintf(fp, "via ifindex %u ", ifindex);
- }
+ if (tb[NDA_LINK_NETNSID])
+ print_uint(PRINT_ANY,
+ "viaIfIndex", "via ifindex %u ",
+ ifindex);
+ else
+ print_string(PRINT_ANY,
+ "viaIf", "via %s ",
+ ll_index_to_name(ifindex));
}
+
if (tb[NDA_LINK_NETNSID])
- fprintf(fp, "link-netnsid %d ",
- rta_getattr_u32(tb[NDA_LINK_NETNSID]));
+ print_uint(PRINT_ANY,
+ "linkNetNsId", "link-netnsid %d ",
+ rta_getattr_u32(tb[NDA_LINK_NETNSID]));
+
+ if (show_stats && tb[NDA_CACHEINFO])
+ fdb_print_stats(fp, RTA_DATA(tb[NDA_CACHEINFO]));
+
+ fdb_print_flags(fp, r->ndm_flags);
- if (show_stats && tb[NDA_CACHEINFO]) {
- struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]);
- int hz = get_user_hz();
- fprintf(fp, "used %d/%d ", ci->ndm_used/hz,
- ci->ndm_updated/hz);
- }
- if (r->ndm_flags & NTF_SELF)
- fprintf(fp, "self ");
if (tb[NDA_MASTER])
- fprintf(fp, "master %s ",
- ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));
- else if (r->ndm_flags & NTF_MASTER)
- fprintf(fp, "master ");
- if (r->ndm_flags & NTF_ROUTER)
- fprintf(fp, "router ");
- if (r->ndm_flags & NTF_EXT_LEARNED)
- fprintf(fp, "offload ");
-
- fprintf(fp, "%s\n", state_n2a(r->ndm_state));
- fflush(fp);
+ print_string(PRINT_ANY, "master", "master %s ",
+ ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER])));
+ print_string(PRINT_ANY, "state", "%s\n",
+ state_n2a(r->ndm_state));
+ close_json_object();
+ fflush(fp);
return 0;
}
static int fdb_show(int argc, char **argv)
{
struct {
- struct nlmsghdr n;
- struct ifinfomsg ifm;
- char buf[256];
- } req;
+ struct nlmsghdr n;
+ struct ndmsg ndm;
+ char buf[256];
+ } req = {
+ .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)),
+ .ndm.ndm_family = PF_BRIDGE,
+ };
char *filter_dev = NULL;
char *br = NULL;
- int msg_size = sizeof(struct ifinfomsg);
-
- memset(&req, 0, sizeof(req));
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
- req.ifm.ifi_family = PF_BRIDGE;
+ int msg_size = sizeof(struct ndmsg);
while (argc > 0) {
if ((strcmp(*argv, "brport") == 0) || strcmp(*argv, "dev") == 0) {
} else if (strcmp(*argv, "br") == 0) {
NEXT_ARG();
br = *argv;
+ } else if (strcmp(*argv, "vlan") == 0) {
+ NEXT_ARG();
+ if (filter_vlan)
+ duparg("vlan", *argv);
+ filter_vlan = atoi(*argv);
+ } else if (strcmp(*argv, "state") == 0) {
+ unsigned int state;
+
+ NEXT_ARG();
+ if (state_a2n(&state, *argv))
+ invarg("invalid state", *argv);
+ filter_state |= state;
} else {
if (matches(*argv, "help") == 0)
usage();
if (br) {
int br_ifindex = ll_name_to_index(br);
+
if (br_ifindex == 0) {
fprintf(stderr, "Cannot find bridge device \"%s\"\n", br);
return -1;
/*we'll keep around filter_dev for older kernels */
if (filter_dev) {
- filter_index = if_nametoindex(filter_dev);
- if (filter_index == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n",
- filter_dev);
- return -1;
- }
- req.ifm.ifi_index = filter_index;
+ filter_index = ll_name_to_index(filter_dev);
+ if (!filter_index)
+ return nodev(filter_dev);
+ req.ndm.ndm_ifindex = filter_index;
}
- if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ifm, msg_size) < 0) {
+ if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ndm, msg_size) < 0) {
perror("Cannot send dump request");
exit(1);
}
+ new_json_obj(json);
if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) {
fprintf(stderr, "Dump terminated\n");
exit(1);
}
+ delete_json_obj();
+ fflush(stdout);
return 0;
}
static int fdb_modify(int cmd, int flags, int argc, char **argv)
{
struct {
- struct nlmsghdr n;
- struct ndmsg ndm;
- char buf[256];
- } req;
+ struct nlmsghdr n;
+ struct ndmsg ndm;
+ char buf[256];
+ } req = {
+ .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)),
+ .n.nlmsg_flags = NLM_F_REQUEST | flags,
+ .n.nlmsg_type = cmd,
+ .ndm.ndm_family = PF_BRIDGE,
+ .ndm.ndm_state = NUD_NOARP,
+ };
char *addr = NULL;
char *d = NULL;
char abuf[ETH_ALEN];
char *endptr;
short vid = -1;
- memset(&req, 0, sizeof(req));
-
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg));
- req.n.nlmsg_flags = NLM_F_REQUEST|flags;
- req.n.nlmsg_type = cmd;
- req.ndm.ndm_family = PF_BRIDGE;
- req.ndm.ndm_state = NUD_NOARP;
-
while (argc > 0) {
if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
invarg("invalid VNI\n", *argv);
} else if (strcmp(*argv, "via") == 0) {
NEXT_ARG();
- via = if_nametoindex(*argv);
- if (via == 0)
- invarg("invalid device\n", *argv);
+ via = ll_name_to_index(*argv);
+ if (!via)
+ exit(nodev(*argv));
} else if (strcmp(*argv, "self") == 0) {
req.ndm.ndm_flags |= NTF_SELF;
} else if (matches(*argv, "master") == 0) {
req.ndm.ndm_flags |= NTF_MASTER;
} else if (matches(*argv, "router") == 0) {
req.ndm.ndm_flags |= NTF_ROUTER;
- } else if (matches(*argv, "local") == 0||
+ } else if (matches(*argv, "local") == 0 ||
matches(*argv, "permanent") == 0) {
req.ndm.ndm_state |= NUD_PERMANENT;
- } else if (matches(*argv, "temp") == 0) {
+ } else if (matches(*argv, "temp") == 0 ||
+ matches(*argv, "static") == 0) {
+ req.ndm.ndm_state |= NUD_REACHABLE;
+ } else if (matches(*argv, "dynamic") == 0) {
req.ndm.ndm_state |= NUD_REACHABLE;
+ req.ndm.ndm_state &= ~NUD_NOARP;
} else if (matches(*argv, "vlan") == 0) {
if (vid >= 0)
duparg2("vlan", *argv);
vid = atoi(*argv);
} else if (matches(*argv, "use") == 0) {
req.ndm.ndm_flags |= NTF_USE;
+ } else if (matches(*argv, "extern_learn") == 0) {
+ req.ndm.ndm_flags |= NTF_EXT_LEARNED;
+ } else if (matches(*argv, "sticky") == 0) {
+ req.ndm.ndm_flags |= NTF_STICKY;
} else {
- if (strcmp(*argv, "to") == 0) {
+ if (strcmp(*argv, "to") == 0)
NEXT_ARG();
- }
+
if (matches(*argv, "help") == 0)
usage();
if (addr)
addattr32(&req.n, sizeof(req), NDA_IFINDEX, via);
req.ndm.ndm_ifindex = ll_name_to_index(d);
- if (req.ndm.ndm_ifindex == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", d);
- return -1;
- }
+ if (!req.ndm.ndm_ifindex)
+ return nodev(d);
- if (rtnl_talk(&rth, &req.n, NULL, 0) < 0)
+ if (rtnl_talk(&rth, &req.n, NULL) < 0)
return -1;
return 0;
projects / mirror_iproute2.git / blobdiff