Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Get/set/delete fdb table with netlink |
| 3 | * |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 4 | * TODO: merge/replace this with ip neighbour |
| 5 | * |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 6 | * Authors: Stephen Hemminger <shemminger@vyatta.com> |
| 7 | */ |
| 8 | |
| 9 | #include <stdio.h> |
| 10 | #include <stdlib.h> |
| 11 | #include <unistd.h> |
David Stevens | 5f40967 | 2013-05-01 03:21:22 +0000 | [diff] [blame] | 12 | #include <netdb.h> |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 13 | #include <time.h> |
| 14 | #include <fcntl.h> |
| 15 | #include <sys/socket.h> |
| 16 | #include <sys/time.h> |
| 17 | #include <net/if.h> |
| 18 | #include <netinet/in.h> |
| 19 | #include <linux/if_bridge.h> |
| 20 | #include <linux/if_ether.h> |
| 21 | #include <linux/neighbour.h> |
| 22 | #include <string.h> |
Natanael Copa | dd9cc0e | 2014-05-27 07:40:10 +0000 | [diff] [blame] | 23 | #include <limits.h> |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 24 | #include <json_writer.h> |
| 25 | #include <stdbool.h> |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 26 | |
| 27 | #include "libnetlink.h" |
| 28 | #include "br_common.h" |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 29 | #include "rt_names.h" |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 30 | #include "utils.h" |
| 31 | |
Nikolay Aleksandrov | ae6eb90 | 2016-04-11 17:45:14 +0200 | [diff] [blame] | 32 | static unsigned int filter_index, filter_vlan; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 33 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 34 | json_writer_t *jw_global; |
| 35 | |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 36 | static void usage(void) |
| 37 | { |
Phil Sutter | bd5bbad | 2015-10-29 10:55:24 +0100 | [diff] [blame] | 38 | fprintf(stderr, "Usage: bridge fdb { add | append | del | replace } ADDR dev DEV\n" |
Roopa Prabhu | cd8df30 | 2015-07-30 14:37:02 -0700 | [diff] [blame] | 39 | " [ self ] [ master ] [ use ] [ router ]\n" |
Roopa Prabhu | c6d0cfb | 2016-02-19 21:34:52 -0800 | [diff] [blame] | 40 | " [ local | static | dynamic ] [ dst IPADDR ] [ vlan VID ]\n" |
Stephen Hemminger | df4b043 | 2016-03-21 11:56:01 -0700 | [diff] [blame] | 41 | " [ port PORT] [ vni VNI ] [ via DEV ]\n"); |
Nikolay Aleksandrov | ae6eb90 | 2016-04-11 17:45:14 +0200 | [diff] [blame] | 42 | fprintf(stderr, " bridge fdb [ show [ br BRDEV ] [ brport DEV ] [ vlan VID ] ]\n"); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 43 | exit(-1); |
| 44 | } |
| 45 | |
Stephen Hemminger | df4b043 | 2016-03-21 11:56:01 -0700 | [diff] [blame] | 46 | static const char *state_n2a(unsigned int s) |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 47 | { |
| 48 | static char buf[32]; |
| 49 | |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 50 | if (s & NUD_PERMANENT) |
| 51 | return "permanent"; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 52 | |
| 53 | if (s & NUD_NOARP) |
| 54 | return "static"; |
| 55 | |
| 56 | if (s & NUD_STALE) |
| 57 | return "stale"; |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 58 | |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 59 | if (s & NUD_REACHABLE) |
| 60 | return ""; |
| 61 | |
| 62 | sprintf(buf, "state=%#x", s); |
| 63 | return buf; |
| 64 | } |
| 65 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 66 | static void start_json_fdb_flags_array(bool *fdb_flags) |
| 67 | { |
| 68 | if (*fdb_flags) |
| 69 | return; |
| 70 | jsonw_name(jw_global, "flags"); |
| 71 | jsonw_start_array(jw_global); |
| 72 | *fdb_flags = true; |
| 73 | } |
| 74 | |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 75 | int print_fdb(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) |
| 76 | { |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 77 | FILE *fp = arg; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 78 | struct ndmsg *r = NLMSG_DATA(n); |
| 79 | int len = n->nlmsg_len; |
Stephen Hemminger | df4b043 | 2016-03-21 11:56:01 -0700 | [diff] [blame] | 80 | struct rtattr *tb[NDA_MAX+1]; |
Nikolay Aleksandrov | ae6eb90 | 2016-04-11 17:45:14 +0200 | [diff] [blame] | 81 | __u16 vid = 0; |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 82 | bool fdb_flags = false; |
| 83 | const char *state_s; |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 84 | |
| 85 | if (n->nlmsg_type != RTM_NEWNEIGH && n->nlmsg_type != RTM_DELNEIGH) { |
| 86 | fprintf(stderr, "Not RTM_NEWNEIGH: %08x %08x %08x\n", |
| 87 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 88 | return 0; |
| 89 | } |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 90 | |
| 91 | len -= NLMSG_LENGTH(sizeof(*r)); |
| 92 | if (len < 0) { |
| 93 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); |
| 94 | return -1; |
| 95 | } |
| 96 | |
| 97 | if (r->ndm_family != AF_BRIDGE) |
| 98 | return 0; |
| 99 | |
| 100 | if (filter_index && filter_index != r->ndm_ifindex) |
| 101 | return 0; |
| 102 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 103 | if (jw_global) { |
| 104 | jsonw_pretty(jw_global, 1); |
| 105 | jsonw_start_object(jw_global); |
| 106 | } |
| 107 | |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 108 | parse_rtattr(tb, NDA_MAX, NDA_RTA(r), |
| 109 | n->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); |
| 110 | |
Nikolay Aleksandrov | ae6eb90 | 2016-04-11 17:45:14 +0200 | [diff] [blame] | 111 | if (tb[NDA_VLAN]) |
| 112 | vid = rta_getattr_u16(tb[NDA_VLAN]); |
| 113 | |
| 114 | if (filter_vlan && filter_vlan != vid) |
| 115 | return 0; |
| 116 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 117 | if (n->nlmsg_type == RTM_DELNEIGH) { |
| 118 | if (jw_global) |
| 119 | jsonw_string_field(jw_global, "opCode", "deleted"); |
| 120 | else |
| 121 | fprintf(fp, "Deleted "); |
| 122 | } |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 123 | |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 124 | if (tb[NDA_LLADDR]) { |
| 125 | SPRINT_BUF(b1); |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 126 | ll_addr_n2a(RTA_DATA(tb[NDA_LLADDR]), |
| 127 | RTA_PAYLOAD(tb[NDA_LLADDR]), |
| 128 | ll_index_to_type(r->ndm_ifindex), |
| 129 | b1, sizeof(b1)); |
| 130 | if (jw_global) |
| 131 | jsonw_string_field(jw_global, "mac", b1); |
| 132 | else |
| 133 | fprintf(fp, "%s ", b1); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 134 | } |
Stephen Hemminger | 38df7ac | 2012-10-29 17:48:55 -0700 | [diff] [blame] | 135 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 136 | if (!filter_index && r->ndm_ifindex) { |
| 137 | if (jw_global) |
| 138 | jsonw_string_field(jw_global, "dev", |
| 139 | ll_index_to_name(r->ndm_ifindex)); |
| 140 | else |
| 141 | fprintf(fp, "dev %s ", |
| 142 | ll_index_to_name(r->ndm_ifindex)); |
| 143 | } |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 144 | |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 145 | if (tb[NDA_DST]) { |
Mike Rapoport | 9e763fa | 2014-03-20 13:06:10 +0200 | [diff] [blame] | 146 | int family = AF_INET; |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 147 | const char *abuf_s; |
Mike Rapoport | 9e763fa | 2014-03-20 13:06:10 +0200 | [diff] [blame] | 148 | |
| 149 | if (RTA_PAYLOAD(tb[NDA_DST]) == sizeof(struct in6_addr)) |
| 150 | family = AF_INET6; |
| 151 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 152 | abuf_s = format_host(family, |
| 153 | RTA_PAYLOAD(tb[NDA_DST]), |
| 154 | RTA_DATA(tb[NDA_DST])); |
| 155 | if (jw_global) |
| 156 | jsonw_string_field(jw_global, "dst", abuf_s); |
| 157 | else |
| 158 | fprintf(fp, "dst %s ", abuf_s); |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 159 | } |
Stephen Hemminger | 38df7ac | 2012-10-29 17:48:55 -0700 | [diff] [blame] | 160 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 161 | if (vid) { |
| 162 | if (jw_global) |
| 163 | jsonw_uint_field(jw_global, "vlan", vid); |
| 164 | else |
| 165 | fprintf(fp, "vlan %hu ", vid); |
| 166 | } |
Vlad Yasevich | fd08839 | 2013-02-28 10:04:04 +0000 | [diff] [blame] | 167 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 168 | if (tb[NDA_PORT]) { |
| 169 | if (jw_global) |
| 170 | jsonw_uint_field(jw_global, "port", |
| 171 | ntohs(rta_getattr_u16(tb[NDA_PORT]))); |
| 172 | else |
| 173 | fprintf(fp, "port %d ", |
| 174 | ntohs(rta_getattr_u16(tb[NDA_PORT]))); |
| 175 | } |
| 176 | |
| 177 | if (tb[NDA_VNI]) { |
| 178 | if (jw_global) |
| 179 | jsonw_uint_field(jw_global, "vni", |
| 180 | rta_getattr_u32(tb[NDA_VNI])); |
| 181 | else |
| 182 | fprintf(fp, "vni %d ", |
| 183 | rta_getattr_u32(tb[NDA_VNI])); |
| 184 | } |
| 185 | |
David Stevens | 5f40967 | 2013-05-01 03:21:22 +0000 | [diff] [blame] | 186 | if (tb[NDA_IFINDEX]) { |
| 187 | unsigned int ifindex = rta_getattr_u32(tb[NDA_IFINDEX]); |
| 188 | |
| 189 | if (ifindex) { |
| 190 | char ifname[IF_NAMESIZE]; |
| 191 | |
Nicolas Dichtel | a479767 | 2015-02-17 17:30:39 +0100 | [diff] [blame] | 192 | if (!tb[NDA_LINK_NETNSID] && |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 193 | if_indextoname(ifindex, ifname)) { |
| 194 | if (jw_global) |
| 195 | jsonw_string_field(jw_global, "viaIf", |
| 196 | ifname); |
| 197 | else |
| 198 | fprintf(fp, "via %s ", ifname); |
| 199 | } else { |
| 200 | if (jw_global) |
| 201 | jsonw_uint_field(jw_global, "viaIfIndex", |
| 202 | ifindex); |
| 203 | else |
| 204 | fprintf(fp, "via ifindex %u ", ifindex); |
| 205 | } |
David Stevens | 5f40967 | 2013-05-01 03:21:22 +0000 | [diff] [blame] | 206 | } |
| 207 | } |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 208 | |
| 209 | if (tb[NDA_LINK_NETNSID]) { |
| 210 | if (jw_global) |
| 211 | jsonw_uint_field(jw_global, "linkNetNsId", |
| 212 | rta_getattr_u32(tb[NDA_LINK_NETNSID])); |
| 213 | else |
| 214 | fprintf(fp, "link-netnsid %d ", |
| 215 | rta_getattr_u32(tb[NDA_LINK_NETNSID])); |
| 216 | } |
David Stevens | 5f40967 | 2013-05-01 03:21:22 +0000 | [diff] [blame] | 217 | |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 218 | if (show_stats && tb[NDA_CACHEINFO]) { |
| 219 | struct nda_cacheinfo *ci = RTA_DATA(tb[NDA_CACHEINFO]); |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 220 | int hz = get_user_hz(); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 221 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 222 | if (jw_global) { |
| 223 | jsonw_uint_field(jw_global, "used", |
| 224 | ci->ndm_used/hz); |
| 225 | jsonw_uint_field(jw_global, "updated", |
| 226 | ci->ndm_updated/hz); |
| 227 | } else { |
| 228 | fprintf(fp, "used %d/%d ", ci->ndm_used/hz, |
| 229 | ci->ndm_updated/hz); |
| 230 | } |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 231 | } |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 232 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 233 | if (jw_global) { |
| 234 | if (r->ndm_flags & NTF_SELF) { |
| 235 | start_json_fdb_flags_array(&fdb_flags); |
| 236 | jsonw_string(jw_global, "self"); |
| 237 | } |
| 238 | if (r->ndm_flags & NTF_ROUTER) { |
| 239 | start_json_fdb_flags_array(&fdb_flags); |
| 240 | jsonw_string(jw_global, "router"); |
| 241 | } |
| 242 | if (r->ndm_flags & NTF_EXT_LEARNED) { |
| 243 | start_json_fdb_flags_array(&fdb_flags); |
| 244 | jsonw_string(jw_global, "offload"); |
| 245 | } |
| 246 | if (r->ndm_flags & NTF_MASTER) |
| 247 | jsonw_string(jw_global, "master"); |
| 248 | if (fdb_flags) |
| 249 | jsonw_end_array(jw_global); |
| 250 | |
| 251 | if (tb[NDA_MASTER]) |
| 252 | jsonw_string_field(jw_global, |
| 253 | "master", |
| 254 | ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER]))); |
| 255 | |
| 256 | } else { |
| 257 | if (r->ndm_flags & NTF_SELF) |
| 258 | fprintf(fp, "self "); |
| 259 | if (r->ndm_flags & NTF_ROUTER) |
| 260 | fprintf(fp, "router "); |
| 261 | if (r->ndm_flags & NTF_EXT_LEARNED) |
| 262 | fprintf(fp, "offload "); |
| 263 | if (tb[NDA_MASTER]) { |
| 264 | fprintf(fp, "master %s ", |
| 265 | ll_index_to_name(rta_getattr_u32(tb[NDA_MASTER]))); |
| 266 | } else if (r->ndm_flags & NTF_MASTER) { |
| 267 | fprintf(fp, "master "); |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | state_s = state_n2a(r->ndm_state); |
| 272 | if (jw_global) { |
| 273 | if (state_s[0]) |
| 274 | jsonw_string_field(jw_global, "state", state_s); |
| 275 | |
| 276 | jsonw_end_object(jw_global); |
| 277 | } else { |
| 278 | fprintf(fp, "%s\n", state_s); |
| 279 | |
| 280 | fflush(fp); |
| 281 | } |
Wilson Kok | 4d45bf3 | 2015-10-15 14:53:17 -0700 | [diff] [blame] | 282 | |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | static int fdb_show(int argc, char **argv) |
| 287 | { |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 288 | struct { |
Stephen Hemminger | df4b043 | 2016-03-21 11:56:01 -0700 | [diff] [blame] | 289 | struct nlmsghdr n; |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 290 | struct ifinfomsg ifm; |
Stephen Hemminger | df4b043 | 2016-03-21 11:56:01 -0700 | [diff] [blame] | 291 | char buf[256]; |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 292 | } req; |
| 293 | |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 294 | char *filter_dev = NULL; |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 295 | char *br = NULL; |
| 296 | int msg_size = sizeof(struct ifinfomsg); |
| 297 | |
| 298 | memset(&req, 0, sizeof(req)); |
| 299 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
| 300 | req.ifm.ifi_family = PF_BRIDGE; |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 301 | |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 302 | while (argc > 0) { |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 303 | if ((strcmp(*argv, "brport") == 0) || strcmp(*argv, "dev") == 0) { |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 304 | NEXT_ARG(); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 305 | filter_dev = *argv; |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 306 | } else if (strcmp(*argv, "br") == 0) { |
| 307 | NEXT_ARG(); |
| 308 | br = *argv; |
Nikolay Aleksandrov | ae6eb90 | 2016-04-11 17:45:14 +0200 | [diff] [blame] | 309 | } else if (strcmp(*argv, "vlan") == 0) { |
| 310 | NEXT_ARG(); |
| 311 | if (filter_vlan) |
| 312 | duparg("vlan", *argv); |
| 313 | filter_vlan = atoi(*argv); |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 314 | } else { |
| 315 | if (matches(*argv, "help") == 0) |
| 316 | usage(); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 317 | } |
| 318 | argc--; argv++; |
| 319 | } |
| 320 | |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 321 | if (br) { |
| 322 | int br_ifindex = ll_name_to_index(br); |
Stephen Hemminger | df4b043 | 2016-03-21 11:56:01 -0700 | [diff] [blame] | 323 | |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 324 | if (br_ifindex == 0) { |
| 325 | fprintf(stderr, "Cannot find bridge device \"%s\"\n", br); |
| 326 | return -1; |
| 327 | } |
| 328 | addattr32(&req.n, sizeof(req), IFLA_MASTER, br_ifindex); |
| 329 | msg_size += RTA_LENGTH(4); |
| 330 | } |
| 331 | |
| 332 | /*we'll keep around filter_dev for older kernels */ |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 333 | if (filter_dev) { |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 334 | filter_index = if_nametoindex(filter_dev); |
| 335 | if (filter_index == 0) { |
| 336 | fprintf(stderr, "Cannot find device \"%s\"\n", |
| 337 | filter_dev); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 338 | return -1; |
| 339 | } |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 340 | req.ifm.ifi_index = filter_index; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 341 | } |
| 342 | |
Jamal Hadi Salim | aeb14eb | 2014-07-04 08:37:10 -0400 | [diff] [blame] | 343 | if (rtnl_dump_request(&rth, RTM_GETNEIGH, &req.ifm, msg_size) < 0) { |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 344 | perror("Cannot send dump request"); |
| 345 | exit(1); |
| 346 | } |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 347 | |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 348 | if (json_output) { |
| 349 | jw_global = jsonw_new(stdout); |
| 350 | if (!jw_global) { |
| 351 | fprintf(stderr, "Error allocation json object\n"); |
| 352 | exit(1); |
| 353 | } |
| 354 | jsonw_start_array(jw_global); |
| 355 | } |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 356 | if (rtnl_dump_filter(&rth, print_fdb, stdout) < 0) { |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 357 | fprintf(stderr, "Dump terminated\n"); |
| 358 | exit(1); |
| 359 | } |
Anuradha Karuppiah | b239c56 | 2016-06-22 06:45:53 -0700 | [diff] [blame] | 360 | if (jw_global) { |
| 361 | jsonw_end_array(jw_global); |
| 362 | jsonw_destroy(&jw_global); |
| 363 | } |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 364 | |
| 365 | return 0; |
| 366 | } |
| 367 | |
| 368 | static int fdb_modify(int cmd, int flags, int argc, char **argv) |
| 369 | { |
| 370 | struct { |
Stephen Hemminger | df4b043 | 2016-03-21 11:56:01 -0700 | [diff] [blame] | 371 | struct nlmsghdr n; |
| 372 | struct ndmsg ndm; |
| 373 | char buf[256]; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 374 | } req; |
| 375 | char *addr = NULL; |
| 376 | char *d = NULL; |
| 377 | char abuf[ETH_ALEN]; |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 378 | int dst_ok = 0; |
| 379 | inet_prefix dst; |
David Stevens | 5f40967 | 2013-05-01 03:21:22 +0000 | [diff] [blame] | 380 | unsigned long port = 0; |
| 381 | unsigned long vni = ~0; |
| 382 | unsigned int via = 0; |
| 383 | char *endptr; |
Vlad Yasevich | fd08839 | 2013-02-28 10:04:04 +0000 | [diff] [blame] | 384 | short vid = -1; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 385 | |
| 386 | memset(&req, 0, sizeof(req)); |
| 387 | |
| 388 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndmsg)); |
| 389 | req.n.nlmsg_flags = NLM_F_REQUEST|flags; |
| 390 | req.n.nlmsg_type = cmd; |
| 391 | req.ndm.ndm_family = PF_BRIDGE; |
| 392 | req.ndm.ndm_state = NUD_NOARP; |
| 393 | |
| 394 | while (argc > 0) { |
| 395 | if (strcmp(*argv, "dev") == 0) { |
| 396 | NEXT_ARG(); |
| 397 | d = *argv; |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 398 | } else if (strcmp(*argv, "dst") == 0) { |
| 399 | NEXT_ARG(); |
| 400 | if (dst_ok) |
| 401 | duparg2("dst", *argv); |
| 402 | get_addr(&dst, *argv, preferred_family); |
| 403 | dst_ok = 1; |
David Stevens | 5f40967 | 2013-05-01 03:21:22 +0000 | [diff] [blame] | 404 | } else if (strcmp(*argv, "port") == 0) { |
| 405 | |
| 406 | NEXT_ARG(); |
| 407 | port = strtoul(*argv, &endptr, 0); |
| 408 | if (endptr && *endptr) { |
| 409 | struct servent *pse; |
| 410 | |
| 411 | pse = getservbyname(*argv, "udp"); |
| 412 | if (!pse) |
| 413 | invarg("invalid port\n", *argv); |
| 414 | port = ntohs(pse->s_port); |
| 415 | } else if (port > 0xffff) |
| 416 | invarg("invalid port\n", *argv); |
| 417 | } else if (strcmp(*argv, "vni") == 0) { |
| 418 | NEXT_ARG(); |
| 419 | vni = strtoul(*argv, &endptr, 0); |
| 420 | if ((endptr && *endptr) || |
| 421 | (vni >> 24) || vni == ULONG_MAX) |
| 422 | invarg("invalid VNI\n", *argv); |
| 423 | } else if (strcmp(*argv, "via") == 0) { |
| 424 | NEXT_ARG(); |
| 425 | via = if_nametoindex(*argv); |
| 426 | if (via == 0) |
| 427 | invarg("invalid device\n", *argv); |
John Fastabend | dc6a6a2 | 2012-08-23 13:37:19 -0700 | [diff] [blame] | 428 | } else if (strcmp(*argv, "self") == 0) { |
| 429 | req.ndm.ndm_flags |= NTF_SELF; |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 430 | } else if (matches(*argv, "master") == 0) { |
John Fastabend | dc6a6a2 | 2012-08-23 13:37:19 -0700 | [diff] [blame] | 431 | req.ndm.ndm_flags |= NTF_MASTER; |
David L Stevens | 5b8a1d4 | 2013-05-06 05:11:46 -0700 | [diff] [blame] | 432 | } else if (matches(*argv, "router") == 0) { |
| 433 | req.ndm.ndm_flags |= NTF_ROUTER; |
Stephen Hemminger | e9e9365 | 2016-03-27 10:47:46 -0700 | [diff] [blame] | 434 | } else if (matches(*argv, "local") == 0 || |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 435 | matches(*argv, "permanent") == 0) { |
| 436 | req.ndm.ndm_state |= NUD_PERMANENT; |
Roopa Prabhu | a1987cd | 2016-01-27 09:09:37 -0800 | [diff] [blame] | 437 | } else if (matches(*argv, "temp") == 0 || |
| 438 | matches(*argv, "static") == 0) { |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 439 | req.ndm.ndm_state |= NUD_REACHABLE; |
Roopa Prabhu | c6d0cfb | 2016-02-19 21:34:52 -0800 | [diff] [blame] | 440 | } else if (matches(*argv, "dynamic") == 0) { |
| 441 | req.ndm.ndm_state |= NUD_REACHABLE; |
| 442 | req.ndm.ndm_state &= ~NUD_NOARP; |
Vlad Yasevich | fd08839 | 2013-02-28 10:04:04 +0000 | [diff] [blame] | 443 | } else if (matches(*argv, "vlan") == 0) { |
| 444 | if (vid >= 0) |
| 445 | duparg2("vlan", *argv); |
| 446 | NEXT_ARG(); |
| 447 | vid = atoi(*argv); |
Roopa Prabhu | cd8df30 | 2015-07-30 14:37:02 -0700 | [diff] [blame] | 448 | } else if (matches(*argv, "use") == 0) { |
| 449 | req.ndm.ndm_flags |= NTF_USE; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 450 | } else { |
| 451 | if (strcmp(*argv, "to") == 0) { |
| 452 | NEXT_ARG(); |
| 453 | } |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 454 | if (matches(*argv, "help") == 0) |
| 455 | usage(); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 456 | if (addr) |
| 457 | duparg2("to", *argv); |
| 458 | addr = *argv; |
| 459 | } |
| 460 | argc--; argv++; |
| 461 | } |
| 462 | |
| 463 | if (d == NULL || addr == NULL) { |
| 464 | fprintf(stderr, "Device and address are required arguments.\n"); |
Roopa Prabhu | 42ecedd | 2015-03-17 19:26:32 -0700 | [diff] [blame] | 465 | return -1; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 466 | } |
| 467 | |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 468 | /* Assume self */ |
| 469 | if (!(req.ndm.ndm_flags&(NTF_SELF|NTF_MASTER))) |
| 470 | req.ndm.ndm_flags |= NTF_SELF; |
| 471 | |
| 472 | /* Assume permanent */ |
| 473 | if (!(req.ndm.ndm_state&(NUD_PERMANENT|NUD_REACHABLE))) |
| 474 | req.ndm.ndm_state |= NUD_PERMANENT; |
| 475 | |
| 476 | if (sscanf(addr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 477 | abuf, abuf+1, abuf+2, |
| 478 | abuf+3, abuf+4, abuf+5) != 6) { |
| 479 | fprintf(stderr, "Invalid mac address %s\n", addr); |
Roopa Prabhu | 42ecedd | 2015-03-17 19:26:32 -0700 | [diff] [blame] | 480 | return -1; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 481 | } |
| 482 | |
| 483 | addattr_l(&req.n, sizeof(req), NDA_LLADDR, abuf, ETH_ALEN); |
Stephen Hemminger | 0849e60 | 2012-10-01 13:58:01 -0700 | [diff] [blame] | 484 | if (dst_ok) |
| 485 | addattr_l(&req.n, sizeof(req), NDA_DST, &dst.data, dst.bytelen); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 486 | |
Vlad Yasevich | fd08839 | 2013-02-28 10:04:04 +0000 | [diff] [blame] | 487 | if (vid >= 0) |
Stephen Hemminger | 8ae6609 | 2013-03-06 11:04:29 -0800 | [diff] [blame] | 488 | addattr16(&req.n, sizeof(req), NDA_VLAN, vid); |
Vlad Yasevich | fd08839 | 2013-02-28 10:04:04 +0000 | [diff] [blame] | 489 | |
David Stevens | 5f40967 | 2013-05-01 03:21:22 +0000 | [diff] [blame] | 490 | if (port) { |
| 491 | unsigned short dport; |
| 492 | |
| 493 | dport = htons((unsigned short)port); |
| 494 | addattr16(&req.n, sizeof(req), NDA_PORT, dport); |
| 495 | } |
| 496 | if (vni != ~0) |
| 497 | addattr32(&req.n, sizeof(req), NDA_VNI, vni); |
| 498 | if (via) |
| 499 | addattr32(&req.n, sizeof(req), NDA_IFINDEX, via); |
| 500 | |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 501 | req.ndm.ndm_ifindex = ll_name_to_index(d); |
| 502 | if (req.ndm.ndm_ifindex == 0) { |
| 503 | fprintf(stderr, "Cannot find device \"%s\"\n", d); |
| 504 | return -1; |
| 505 | } |
| 506 | |
Stephen Hemminger | c079e12 | 2015-05-27 12:26:14 -0700 | [diff] [blame] | 507 | if (rtnl_talk(&rth, &req.n, NULL, 0) < 0) |
Roopa Prabhu | 42ecedd | 2015-03-17 19:26:32 -0700 | [diff] [blame] | 508 | return -1; |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 509 | |
| 510 | return 0; |
| 511 | } |
| 512 | |
| 513 | int do_fdb(int argc, char **argv) |
| 514 | { |
| 515 | ll_init_map(&rth); |
| 516 | |
| 517 | if (argc > 0) { |
| 518 | if (matches(*argv, "add") == 0) |
| 519 | return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1); |
David Stevens | 5f40967 | 2013-05-01 03:21:22 +0000 | [diff] [blame] | 520 | if (matches(*argv, "append") == 0) |
| 521 | return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_APPEND, argc-1, argv+1); |
Thomas Richter | 5464049 | 2013-07-30 08:16:41 +0200 | [diff] [blame] | 522 | if (matches(*argv, "replace") == 0) |
| 523 | return fdb_modify(RTM_NEWNEIGH, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 524 | if (matches(*argv, "delete") == 0) |
| 525 | return fdb_modify(RTM_DELNEIGH, 0, argc-1, argv+1); |
| 526 | if (matches(*argv, "show") == 0 || |
| 527 | matches(*argv, "lst") == 0 || |
| 528 | matches(*argv, "list") == 0) |
| 529 | return fdb_show(argc-1, argv+1); |
| 530 | if (matches(*argv, "help") == 0) |
| 531 | usage(); |
| 532 | } else |
| 533 | return fdb_show(0, NULL); |
| 534 | |
Li Wei | 083b46b | 2012-08-20 14:28:47 +0800 | [diff] [blame] | 535 | fprintf(stderr, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv); |
Stephen Hemminger | d04bc30 | 2012-08-01 15:23:49 -0700 | [diff] [blame] | 536 | exit(-1); |
| 537 | } |