+++ /dev/null
-/*
- * tc.c "tc" utility frontend.
- *
- * 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.
- *
- * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- * Fixes:
- *
- * Petri Mattila <petri@prihateam.fi> 990308: wrong memset's resulted in faults
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <fcntl.h>
-#include <dlfcn.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <string.h>
-#include <errno.h>
-
-#include "SNAPSHOT.h"
-#include "utils.h"
-#include "tc_util.h"
-#include "tc_common.h"
-
-int show_stats = 0;
-int show_details = 0;
-int show_raw = 0;
-int resolve_hosts = 0;
-int use_iec = 0;
-int force = 0;
-struct rtnl_handle rth;
-
-static void *BODY = NULL; /* cached handle dlopen(NULL) */
-static struct qdisc_util * qdisc_list;
-static struct filter_util * filter_list;
-
-static int print_noqopt(struct qdisc_util *qu, FILE *f,
- struct rtattr *opt)
-{
- if (opt && RTA_PAYLOAD(opt))
- fprintf(f, "[Unknown qdisc, optlen=%u] ",
- (unsigned) RTA_PAYLOAD(opt));
- return 0;
-}
-
-static int parse_noqopt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
-{
- if (argc) {
- fprintf(stderr, "Unknown qdisc \"%s\", hence option \"%s\" is unparsable\n", qu->id, *argv);
- return -1;
- }
- return 0;
-}
-
-static int print_nofopt(struct filter_util *qu, FILE *f, struct rtattr *opt, __u32 fhandle)
-{
- if (opt && RTA_PAYLOAD(opt))
- fprintf(f, "fh %08x [Unknown filter, optlen=%u] ",
- fhandle, (unsigned) RTA_PAYLOAD(opt));
- else if (fhandle)
- fprintf(f, "fh %08x ", fhandle);
- return 0;
-}
-
-static int parse_nofopt(struct filter_util *qu, char *fhandle, int argc, char **argv, struct nlmsghdr *n)
-{
- __u32 handle;
-
- if (argc) {
- fprintf(stderr, "Unknown filter \"%s\", hence option \"%s\" is unparsable\n", qu->id, *argv);
- return -1;
- }
- if (fhandle) {
- struct tcmsg *t = NLMSG_DATA(n);
- if (get_u32(&handle, fhandle, 16)) {
- fprintf(stderr, "Unparsable filter ID \"%s\"\n", fhandle);
- return -1;
- }
- t->tcm_handle = handle;
- }
- return 0;
-}
-
-struct qdisc_util *get_qdisc_kind(const char *str)
-{
- void *dlh;
- char buf[256];
- struct qdisc_util *q;
-
- for (q = qdisc_list; q; q = q->next)
- if (strcmp(q->id, str) == 0)
- return q;
-
- snprintf(buf, sizeof(buf), "/usr/lib/tc/q_%s.so", str);
- dlh = dlopen(buf, RTLD_LAZY);
- if (!dlh) {
- /* look in current binary, only open once */
- dlh = BODY;
- if (dlh == NULL) {
- dlh = BODY = dlopen(NULL, RTLD_LAZY);
- if (dlh == NULL)
- goto noexist;
- }
- }
-
- snprintf(buf, sizeof(buf), "%s_qdisc_util", str);
- q = dlsym(dlh, buf);
- if (q == NULL)
- goto noexist;
-
-reg:
- q->next = qdisc_list;
- qdisc_list = q;
- return q;
-
-noexist:
- q = malloc(sizeof(*q));
- if (q) {
-
- memset(q, 0, sizeof(*q));
- q->id = strcpy(malloc(strlen(str)+1), str);
- q->parse_qopt = parse_noqopt;
- q->print_qopt = print_noqopt;
- goto reg;
- }
- return q;
-}
-
-
-struct filter_util *get_filter_kind(const char *str)
-{
- void *dlh;
- char buf[256];
- struct filter_util *q;
-
- for (q = filter_list; q; q = q->next)
- if (strcmp(q->id, str) == 0)
- return q;
-
- snprintf(buf, sizeof(buf), "/usr/lib/tc/f_%s.so", str);
- dlh = dlopen(buf, RTLD_LAZY);
- if (dlh == NULL) {
- dlh = BODY;
- if (dlh == NULL) {
- dlh = BODY = dlopen(NULL, RTLD_LAZY);
- if (dlh == NULL)
- goto noexist;
- }
- }
-
- snprintf(buf, sizeof(buf), "%s_filter_util", str);
- q = dlsym(dlh, buf);
- if (q == NULL)
- goto noexist;
-
-reg:
- q->next = filter_list;
- filter_list = q;
- return q;
-noexist:
- q = malloc(sizeof(*q));
- if (q) {
- memset(q, 0, sizeof(*q));
- strncpy(q->id, str, 15);
- q->parse_fopt = parse_nofopt;
- q->print_fopt = print_nofopt;
- goto reg;
- }
- return q;
-}
-
-static void usage(void)
-{
- fprintf(stderr, "Usage: tc [ OPTIONS ] OBJECT { COMMAND | help }\n"
- " tc [-force] -batch file\n"
- "where OBJECT := { qdisc | class | filter | action }\n"
- " OPTIONS := { -s[tatistics] | -d[etails] | -r[aw] | -b[atch] [file] }\n");
-}
-
-static int do_cmd(int argc, char **argv)
-{
- if (matches(*argv, "qdisc") == 0)
- return do_qdisc(argc-1, argv+1);
-
- if (matches(*argv, "class") == 0)
- return do_class(argc-1, argv+1);
-
- if (matches(*argv, "filter") == 0)
- return do_filter(argc-1, argv+1);
-
- if (matches(*argv, "actions") == 0)
- return do_action(argc-1, argv+1);
-
- if (matches(*argv, "help") == 0) {
- usage();
- return 0;
- }
-
- fprintf(stderr, "Object \"%s\" is unknown, try \"tc help\".\n",
- *argv);
- return -1;
-}
-
-static int batch(const char *name)
-{
- char *line = NULL;
- size_t len = 0;
- int ret = 0;
-
- if (name && strcmp(name, "-") != 0) {
- if (freopen(name, "r", stdin) == NULL) {
- fprintf(stderr, "Cannot open file \"%s\" for reading: %s=n",
- name, strerror(errno));
- return -1;
- }
- }
-
- tc_core_init();
-
- if (rtnl_open(&rth, 0) < 0) {
- fprintf(stderr, "Cannot open rtnetlink\n");
- return -1;
- }
-
- cmdlineno = 0;
- while (getcmdline(&line, &len, stdin) != -1) {
- char *largv[100];
- int largc;
-
- largc = makeargs(line, largv, 100);
- if (largc == 0)
- continue; /* blank line */
-
- if (do_cmd(largc, largv)) {
- fprintf(stderr, "Command failed %s:%d\n", name, cmdlineno);
- ret = 1;
- if (!force)
- break;
- }
- }
- if (line)
- free(line);
-
- rtnl_close(&rth);
- return ret;
-}
-
-
-int main(int argc, char **argv)
-{
- int ret;
- int do_batching = 0;
- char *batchfile = NULL;
-
- while (argc > 1) {
- if (argv[1][0] != '-')
- break;
- if (matches(argv[1], "-stats") == 0 ||
- matches(argv[1], "-statistics") == 0) {
- ++show_stats;
- } else if (matches(argv[1], "-details") == 0) {
- ++show_details;
- } else if (matches(argv[1], "-raw") == 0) {
- ++show_raw;
- } else if (matches(argv[1], "-Version") == 0) {
- printf("tc utility, iproute2-ss%s\n", SNAPSHOT);
- return 0;
- } else if (matches(argv[1], "-iec") == 0) {
- ++use_iec;
- } else if (matches(argv[1], "-help") == 0) {
- usage();
- return 0;
- } else if (matches(argv[1], "-force") == 0) {
- ++force;
- } else if (matches(argv[1], "-batch") == 0) {
- do_batching = 1;
- if (argc > 2)
- batchfile = argv[2];
- argc--; argv++;
- } else {
- fprintf(stderr, "Option \"%s\" is unknown, try \"tc -help\".\n", argv[1]);
- return -1;
- }
- argc--; argv++;
- }
-
- if (do_batching)
- return batch(batchfile);
-
- if (argc <= 1) {
- usage();
- return 0;
- }
-
- tc_core_init();
- if (rtnl_open(&rth, 0) < 0) {
- fprintf(stderr, "Cannot open rtnetlink\n");
- exit(1);
- }
-
- ret = do_cmd(argc-1, argv+1);
- rtnl_close(&rth);
-
- return ret;
-}
git://git.onelab.eu / iproute2.git / blobdiff