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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 14:18:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 14:18:53 +0000 |
commit | a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67 (patch) | |
tree | 8feaf1a1932871b139b3b30be4c09c66489918be /ip/ipntable.c | |
parent | Initial commit. (diff) | |
download | iproute2-a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67.tar.xz iproute2-a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67.zip |
Adding upstream version 6.1.0.upstream/6.1.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | ip/ipntable.c | 701 |
1 files changed, 701 insertions, 0 deletions
diff --git a/ip/ipntable.c b/ip/ipntable.c new file mode 100644 index 0000000..762c790 --- /dev/null +++ b/ip/ipntable.c @@ -0,0 +1,701 @@ +/* + * Copyright (C)2006 USAGI/WIDE Project + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses>. + */ +/* + * based on ipneigh.c + */ +/* + * Authors: + * Masahide NAKAMURA @USAGI + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/time.h> +#include <sys/socket.h> +#include <time.h> + +#include "utils.h" +#include "ip_common.h" +#include "json_print.h" + +static struct +{ + int family; + int index; +#define NONE_DEV (-1) + const char *name; +} filter; + +static void usage(void) __attribute__((noreturn)); + +static void usage(void) +{ + fprintf(stderr, + "Usage: ip ntable change name NAME [ dev DEV ]\n" + " [ thresh1 VAL ] [ thresh2 VAL ] [ thresh3 VAL ] [ gc_int MSEC ]\n" + " [ PARMS ]\n" + "Usage: ip ntable show [ dev DEV ] [ name NAME ]\n" + + "PARMS := [ base_reachable MSEC ] [ retrans MSEC ] [ gc_stale MSEC ]\n" + " [ delay_probe MSEC ] [ queue LEN ]\n" + " [ app_probes VAL ] [ ucast_probes VAL ] [ mcast_probes VAL ]\n" + " [ anycast_delay MSEC ] [ proxy_delay MSEC ] [ proxy_queue LEN ]\n" + " [ locktime MSEC ]\n" + ); + + exit(-1); +} + +static int ipntable_modify(int cmd, int flags, int argc, char **argv) +{ + struct { + struct nlmsghdr n; + struct ndtmsg ndtm; + char buf[1024]; + } req = { + .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndtmsg)), + .n.nlmsg_flags = NLM_F_REQUEST | flags, + .n.nlmsg_type = cmd, + .ndtm.ndtm_family = preferred_family, + }; + char *namep = NULL; + char *threshsp = NULL; + char *gc_intp = NULL; + char parms_buf[1024] = {}; + struct rtattr *parms_rta = (struct rtattr *)parms_buf; + int parms_change = 0; + + parms_rta->rta_type = NDTA_PARMS; + parms_rta->rta_len = RTA_LENGTH(0); + + while (argc > 0) { + if (strcmp(*argv, "name") == 0) { + int len; + + NEXT_ARG(); + if (namep) + duparg("NAME", *argv); + + namep = *argv; + len = strlen(namep) + 1; + addattr_l(&req.n, sizeof(req), NDTA_NAME, namep, len); + } else if (strcmp(*argv, "thresh1") == 0) { + __u32 thresh1; + + NEXT_ARG(); + threshsp = *argv; + + if (get_u32(&thresh1, *argv, 0)) + invarg("\"thresh1\" value is invalid", *argv); + + addattr32(&req.n, sizeof(req), NDTA_THRESH1, thresh1); + } else if (strcmp(*argv, "thresh2") == 0) { + __u32 thresh2; + + NEXT_ARG(); + threshsp = *argv; + + if (get_u32(&thresh2, *argv, 0)) + invarg("\"thresh2\" value is invalid", *argv); + + addattr32(&req.n, sizeof(req), NDTA_THRESH2, thresh2); + } else if (strcmp(*argv, "thresh3") == 0) { + __u32 thresh3; + + NEXT_ARG(); + threshsp = *argv; + + if (get_u32(&thresh3, *argv, 0)) + invarg("\"thresh3\" value is invalid", *argv); + + addattr32(&req.n, sizeof(req), NDTA_THRESH3, thresh3); + } else if (strcmp(*argv, "gc_int") == 0) { + __u64 gc_int; + + NEXT_ARG(); + gc_intp = *argv; + + if (get_u64(&gc_int, *argv, 0)) + invarg("\"gc_int\" value is invalid", *argv); + + addattr_l(&req.n, sizeof(req), NDTA_GC_INTERVAL, + &gc_int, sizeof(gc_int)); + } else if (strcmp(*argv, "dev") == 0) { + __u32 ifindex; + + NEXT_ARG(); + ifindex = ll_name_to_index(*argv); + if (!ifindex) + return nodev(*argv); + + rta_addattr32(parms_rta, sizeof(parms_buf), + NDTPA_IFINDEX, ifindex); + } else if (strcmp(*argv, "base_reachable") == 0) { + __u64 breachable; + + NEXT_ARG(); + + if (get_u64(&breachable, *argv, 0)) + invarg("\"base_reachable\" value is invalid", *argv); + + rta_addattr_l(parms_rta, sizeof(parms_buf), + NDTPA_BASE_REACHABLE_TIME, + &breachable, sizeof(breachable)); + parms_change = 1; + } else if (strcmp(*argv, "retrans") == 0) { + __u64 retrans; + + NEXT_ARG(); + + if (get_u64(&retrans, *argv, 0)) + invarg("\"retrans\" value is invalid", *argv); + + rta_addattr_l(parms_rta, sizeof(parms_buf), + NDTPA_RETRANS_TIME, + &retrans, sizeof(retrans)); + parms_change = 1; + } else if (strcmp(*argv, "gc_stale") == 0) { + __u64 gc_stale; + + NEXT_ARG(); + + if (get_u64(&gc_stale, *argv, 0)) + invarg("\"gc_stale\" value is invalid", *argv); + + rta_addattr_l(parms_rta, sizeof(parms_buf), + NDTPA_GC_STALETIME, + &gc_stale, sizeof(gc_stale)); + parms_change = 1; + } else if (strcmp(*argv, "delay_probe") == 0) { + __u64 delay_probe; + + NEXT_ARG(); + + if (get_u64(&delay_probe, *argv, 0)) + invarg("\"delay_probe\" value is invalid", *argv); + + rta_addattr_l(parms_rta, sizeof(parms_buf), + NDTPA_DELAY_PROBE_TIME, + &delay_probe, sizeof(delay_probe)); + parms_change = 1; + } else if (strcmp(*argv, "queue") == 0) { + __u32 queue; + + NEXT_ARG(); + + if (get_u32(&queue, *argv, 0)) + invarg("\"queue\" value is invalid", *argv); + + rta_addattr32(parms_rta, sizeof(parms_buf), + NDTPA_QUEUE_LEN, queue); + parms_change = 1; + } else if (strcmp(*argv, "app_probes") == 0) { + __u32 aprobe; + + NEXT_ARG(); + + if (get_u32(&aprobe, *argv, 0)) + invarg("\"app_probes\" value is invalid", *argv); + + rta_addattr32(parms_rta, sizeof(parms_buf), + NDTPA_APP_PROBES, aprobe); + parms_change = 1; + } else if (strcmp(*argv, "ucast_probes") == 0) { + __u32 uprobe; + + NEXT_ARG(); + + if (get_u32(&uprobe, *argv, 0)) + invarg("\"ucast_probes\" value is invalid", *argv); + + rta_addattr32(parms_rta, sizeof(parms_buf), + NDTPA_UCAST_PROBES, uprobe); + parms_change = 1; + } else if (strcmp(*argv, "mcast_probes") == 0) { + __u32 mprobe; + + NEXT_ARG(); + + if (get_u32(&mprobe, *argv, 0)) + invarg("\"mcast_probes\" value is invalid", *argv); + + rta_addattr32(parms_rta, sizeof(parms_buf), + NDTPA_MCAST_PROBES, mprobe); + parms_change = 1; + } else if (strcmp(*argv, "anycast_delay") == 0) { + __u64 anycast_delay; + + NEXT_ARG(); + + if (get_u64(&anycast_delay, *argv, 0)) + invarg("\"anycast_delay\" value is invalid", *argv); + + rta_addattr_l(parms_rta, sizeof(parms_buf), + NDTPA_ANYCAST_DELAY, + &anycast_delay, sizeof(anycast_delay)); + parms_change = 1; + } else if (strcmp(*argv, "proxy_delay") == 0) { + __u64 proxy_delay; + + NEXT_ARG(); + + if (get_u64(&proxy_delay, *argv, 0)) + invarg("\"proxy_delay\" value is invalid", *argv); + + rta_addattr_l(parms_rta, sizeof(parms_buf), + NDTPA_PROXY_DELAY, + &proxy_delay, sizeof(proxy_delay)); + parms_change = 1; + } else if (strcmp(*argv, "proxy_queue") == 0) { + __u32 pqueue; + + NEXT_ARG(); + + if (get_u32(&pqueue, *argv, 0)) + invarg("\"proxy_queue\" value is invalid", *argv); + + rta_addattr32(parms_rta, sizeof(parms_buf), + NDTPA_PROXY_QLEN, pqueue); + parms_change = 1; + } else if (strcmp(*argv, "locktime") == 0) { + __u64 locktime; + + NEXT_ARG(); + + if (get_u64(&locktime, *argv, 0)) + invarg("\"locktime\" value is invalid", *argv); + + rta_addattr_l(parms_rta, sizeof(parms_buf), + NDTPA_LOCKTIME, + &locktime, sizeof(locktime)); + parms_change = 1; + } else { + invarg("unknown", *argv); + } + + argc--; argv++; + } + + if (!namep) + missarg("NAME"); + if (!threshsp && !gc_intp && !parms_change) { + fprintf(stderr, "Not enough information: changeable attributes required.\n"); + exit(-1); + } + + if (parms_rta->rta_len > RTA_LENGTH(0)) { + addattr_l(&req.n, sizeof(req), NDTA_PARMS, RTA_DATA(parms_rta), + RTA_PAYLOAD(parms_rta)); + } + + if (rtnl_talk(&rth, &req.n, NULL) < 0) + exit(2); + + return 0; +} + +static const char *ntable_strtime_delta(__u32 msec) +{ + static char str[32]; + struct timeval now = {}; + time_t t; + struct tm *tp; + + if (msec == 0) + goto error; + + if (gettimeofday(&now, NULL) < 0) { + perror("gettimeofday"); + goto error; + } + + t = now.tv_sec - (msec / 1000); + tp = localtime(&t); + if (!tp) + goto error; + + strftime(str, sizeof(str), "%Y-%m-%d %T", tp); + + return str; + error: + strcpy(str, "(error)"); + return str; +} + +static void print_ndtconfig(const struct ndt_config *ndtc) +{ + + print_uint(PRINT_ANY, "key_length", + " config key_len %u ", ndtc->ndtc_key_len); + print_uint(PRINT_ANY, "entry_size", + "entry_size %u ", ndtc->ndtc_entry_size); + print_uint(PRINT_ANY, "entries", "entries %u ", ndtc->ndtc_entries); + + print_nl(); + + print_string(PRINT_ANY, "last_flush", + " last_flush %s ", + ntable_strtime_delta(ndtc->ndtc_last_flush)); + print_string(PRINT_ANY, "last_rand", + "last_rand %s ", + ntable_strtime_delta(ndtc->ndtc_last_rand)); + + print_nl(); + + print_uint(PRINT_ANY, "hash_rnd", + " hash_rnd %u ", ndtc->ndtc_hash_rnd); + print_0xhex(PRINT_ANY, "hash_mask", + "hash_mask %08llx ", ndtc->ndtc_hash_mask); + + print_uint(PRINT_ANY, "hash_chain_gc", + "hash_chain_gc %u ", ndtc->ndtc_hash_chain_gc); + print_uint(PRINT_ANY, "proxy_qlen", + "proxy_qlen %u ", ndtc->ndtc_proxy_qlen); + + print_nl(); +} + +static void print_ndtparams(struct rtattr *tpb[]) +{ + + if (tpb[NDTPA_IFINDEX]) { + __u32 ifindex = rta_getattr_u32(tpb[NDTPA_IFINDEX]); + + print_string(PRINT_FP, NULL, " dev ", NULL); + print_color_string(PRINT_ANY, COLOR_IFNAME, + "dev", "%s ", ll_index_to_name(ifindex)); + print_nl(); + } + + print_string(PRINT_FP, NULL, " ", NULL); + if (tpb[NDTPA_REFCNT]) { + __u32 refcnt = rta_getattr_u32(tpb[NDTPA_REFCNT]); + + print_uint(PRINT_ANY, "refcnt", "refcnt %u ", refcnt); + } + + if (tpb[NDTPA_REACHABLE_TIME]) { + __u64 reachable = rta_getattr_u64(tpb[NDTPA_REACHABLE_TIME]); + + print_u64(PRINT_ANY, "reachable", + "reachable %llu ", reachable); + } + + if (tpb[NDTPA_BASE_REACHABLE_TIME]) { + __u64 breachable + = rta_getattr_u64(tpb[NDTPA_BASE_REACHABLE_TIME]); + + print_u64(PRINT_ANY, "base_reachable", + "base_reachable %llu ", breachable); + } + + if (tpb[NDTPA_RETRANS_TIME]) { + __u64 retrans = rta_getattr_u64(tpb[NDTPA_RETRANS_TIME]); + + print_u64(PRINT_ANY, "retrans", "retrans %llu ", retrans); + } + + print_string(PRINT_FP, NULL, "%s ", _SL_); + + if (tpb[NDTPA_GC_STALETIME]) { + __u64 gc_stale = rta_getattr_u64(tpb[NDTPA_GC_STALETIME]); + + print_u64(PRINT_ANY, "gc_stale", "gc_stale %llu ", gc_stale); + } + + if (tpb[NDTPA_DELAY_PROBE_TIME]) { + __u64 delay_probe + = rta_getattr_u64(tpb[NDTPA_DELAY_PROBE_TIME]); + + print_u64(PRINT_ANY, "delay_probe", + "delay_probe %llu ", delay_probe); + } + + if (tpb[NDTPA_QUEUE_LEN]) { + __u32 queue = rta_getattr_u32(tpb[NDTPA_QUEUE_LEN]); + + print_uint(PRINT_ANY, "queue", "queue %u ", queue); + } + + print_string(PRINT_FP, NULL, "%s ", _SL_); + + if (tpb[NDTPA_APP_PROBES]) { + __u32 aprobe = rta_getattr_u32(tpb[NDTPA_APP_PROBES]); + + print_uint(PRINT_ANY, "app_probes", "app_probes %u ", aprobe); + } + + if (tpb[NDTPA_UCAST_PROBES]) { + __u32 uprobe = rta_getattr_u32(tpb[NDTPA_UCAST_PROBES]); + + print_uint(PRINT_ANY, "ucast_probes", + "ucast_probes %u ", uprobe); + } + + if (tpb[NDTPA_MCAST_PROBES]) { + __u32 mprobe = rta_getattr_u32(tpb[NDTPA_MCAST_PROBES]); + + print_uint(PRINT_ANY, "mcast_probes", + "mcast_probes %u ", mprobe); + } + + print_string(PRINT_FP, NULL, "%s ", _SL_); + + if (tpb[NDTPA_ANYCAST_DELAY]) { + __u64 anycast_delay = rta_getattr_u64(tpb[NDTPA_ANYCAST_DELAY]); + + print_u64(PRINT_ANY, "anycast_delay", + "anycast_delay %llu ", anycast_delay); + } + + if (tpb[NDTPA_PROXY_DELAY]) { + __u64 proxy_delay = rta_getattr_u64(tpb[NDTPA_PROXY_DELAY]); + + print_u64(PRINT_ANY, "proxy_delay", + "proxy_delay %llu ", proxy_delay); + } + + if (tpb[NDTPA_PROXY_QLEN]) { + __u32 pqueue = rta_getattr_u32(tpb[NDTPA_PROXY_QLEN]); + + print_uint(PRINT_ANY, "proxy_queue", "proxy_queue %u ", pqueue); + } + + if (tpb[NDTPA_LOCKTIME]) { + __u64 locktime = rta_getattr_u64(tpb[NDTPA_LOCKTIME]); + + print_u64(PRINT_ANY, "locktime", "locktime %llu ", locktime); + } + + print_nl(); +} + +static void print_ndtstats(const struct ndt_stats *ndts) +{ + + print_string(PRINT_FP, NULL, " stats ", NULL); + + print_u64(PRINT_ANY, "allocs", "allocs %llu ", ndts->ndts_allocs); + print_u64(PRINT_ANY, "destroys", "destroys %llu ", + ndts->ndts_destroys); + print_u64(PRINT_ANY, "hash_grows", "hash_grows %llu ", + ndts->ndts_hash_grows); + + print_string(PRINT_FP, NULL, "%s ", _SL_); + + print_u64(PRINT_ANY, "res_failed", "res_failed %llu ", + ndts->ndts_res_failed); + print_u64(PRINT_ANY, "lookups", "lookups %llu ", ndts->ndts_lookups); + print_u64(PRINT_ANY, "hits", "hits %llu ", ndts->ndts_hits); + + print_string(PRINT_FP, NULL, "%s ", _SL_); + + print_u64(PRINT_ANY, "rcv_probes_mcast", "rcv_probes_mcast %llu ", + ndts->ndts_rcv_probes_mcast); + print_u64(PRINT_ANY, "rcv_probes_ucast", "rcv_probes_ucast %llu ", + ndts->ndts_rcv_probes_ucast); + + print_string(PRINT_FP, NULL, "%s ", _SL_); + + print_u64(PRINT_ANY, "periodic_gc_runs", "periodic_gc_runs %llu ", + ndts->ndts_periodic_gc_runs); + print_u64(PRINT_ANY, "forced_gc_runs", "forced_gc_runs %llu ", + ndts->ndts_forced_gc_runs); + + print_string(PRINT_FP, NULL, "%s ", _SL_); + + print_u64(PRINT_ANY, "table_fulls", "table_fulls %llu ", + ndts->ndts_table_fulls); + + print_nl(); +} + +static int print_ntable(struct nlmsghdr *n, void *arg) +{ + FILE *fp = (FILE *)arg; + struct ndtmsg *ndtm = NLMSG_DATA(n); + int len = n->nlmsg_len; + struct rtattr *tb[NDTA_MAX+1]; + struct rtattr *tpb[NDTPA_MAX+1]; + int ret; + + if (n->nlmsg_type != RTM_NEWNEIGHTBL) { + fprintf(stderr, "Not NEIGHTBL: %08x %08x %08x\n", + n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); + return 0; + } + len -= NLMSG_LENGTH(sizeof(*ndtm)); + if (len < 0) { + fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); + return -1; + } + + if (preferred_family && preferred_family != ndtm->ndtm_family) + return 0; + + parse_rtattr(tb, NDTA_MAX, NDTA_RTA(ndtm), + n->nlmsg_len - NLMSG_LENGTH(sizeof(*ndtm))); + + if (tb[NDTA_NAME]) { + const char *name = rta_getattr_str(tb[NDTA_NAME]); + + if (filter.name && strcmp(filter.name, name)) + return 0; + } + + if (tb[NDTA_PARMS]) { + parse_rtattr(tpb, NDTPA_MAX, RTA_DATA(tb[NDTA_PARMS]), + RTA_PAYLOAD(tb[NDTA_PARMS])); + + if (tpb[NDTPA_IFINDEX]) { + __u32 ifindex = rta_getattr_u32(tpb[NDTPA_IFINDEX]); + + if (filter.index && filter.index != ifindex) + return 0; + } else { + if (filter.index && filter.index != NONE_DEV) + return 0; + } + } + + open_json_object(NULL); + print_string(PRINT_ANY, "family", + "%s ", family_name(ndtm->ndtm_family)); + + if (tb[NDTA_NAME]) { + const char *name = rta_getattr_str(tb[NDTA_NAME]); + + print_string(PRINT_ANY, "name", "%s ", name); + } + + print_nl(); + + ret = (tb[NDTA_THRESH1] || tb[NDTA_THRESH2] || tb[NDTA_THRESH3] || + tb[NDTA_GC_INTERVAL]); + if (ret) + print_string(PRINT_FP, NULL, " ", NULL); + + if (tb[NDTA_THRESH1]) { + __u32 thresh1 = rta_getattr_u32(tb[NDTA_THRESH1]); + + print_uint(PRINT_ANY, "thresh1", "thresh1 %u ", thresh1); + } + + if (tb[NDTA_THRESH2]) { + __u32 thresh2 = rta_getattr_u32(tb[NDTA_THRESH2]); + + print_uint(PRINT_ANY, "thresh2", "thresh2 %u ", thresh2); + } + + if (tb[NDTA_THRESH3]) { + __u32 thresh3 = rta_getattr_u32(tb[NDTA_THRESH3]); + + print_uint(PRINT_ANY, "thresh3", "thresh3 %u ", thresh3); + } + + if (tb[NDTA_GC_INTERVAL]) { + __u64 gc_int = rta_getattr_u64(tb[NDTA_GC_INTERVAL]); + + print_u64(PRINT_ANY, "gc_interval", "gc_int %llu ", gc_int); + } + + if (ret) + print_nl(); + + if (tb[NDTA_CONFIG] && show_stats) + print_ndtconfig(RTA_DATA(tb[NDTA_CONFIG])); + + if (tb[NDTA_PARMS]) + print_ndtparams(tpb); + + if (tb[NDTA_STATS] && show_stats) + print_ndtstats(RTA_DATA(tb[NDTA_STATS])); + + print_string(PRINT_FP, NULL, "\n", ""); + close_json_object(); + fflush(fp); + + return 0; +} + +static void ipntable_reset_filter(void) +{ + memset(&filter, 0, sizeof(filter)); +} + +static int ipntable_show(int argc, char **argv) +{ + ipntable_reset_filter(); + + filter.family = preferred_family; + + while (argc > 0) { + if (strcmp(*argv, "dev") == 0) { + NEXT_ARG(); + + if (strcmp("none", *argv) == 0) + filter.index = NONE_DEV; + else if ((filter.index = ll_name_to_index(*argv)) == 0) + invarg("\"DEV\" is invalid", *argv); + } else if (strcmp(*argv, "name") == 0) { + NEXT_ARG(); + + filter.name = *argv; + } else + invarg("unknown", *argv); + + argc--; argv++; + } + + if (rtnl_neightbldump_req(&rth, preferred_family) < 0) { + perror("Cannot send dump request"); + exit(1); + } + + new_json_obj(json); + if (rtnl_dump_filter(&rth, print_ntable, stdout) < 0) { + fprintf(stderr, "Dump terminated\n"); + exit(1); + } + delete_json_obj(); + + return 0; +} + +int do_ipntable(int argc, char **argv) +{ + ll_init_map(&rth); + + if (argc > 0) { + if (matches(*argv, "change") == 0 || + matches(*argv, "chg") == 0) + return ipntable_modify(RTM_SETNEIGHTBL, + NLM_F_REPLACE, + argc-1, argv+1); + if (matches(*argv, "show") == 0 || + matches(*argv, "lst") == 0 || + matches(*argv, "list") == 0) + return ipntable_show(argc-1, argv+1); + if (matches(*argv, "help") == 0) + usage(); + } else + return ipntable_show(0, NULL); + + fprintf(stderr, "Command \"%s\" is unknown, try \"ip ntable help\".\n", *argv); + exit(-1); +} |