X-Git-Url: http://git.onelab.eu/?p=iproute2.git;a=blobdiff_plain;f=tc%2Fm_ipt.c;fp=tc%2Fm_ipt.c;h=0000000000000000000000000000000000000000;hp=5acc6faad9135226e75f18b0b740af1ec605807c;hb=3331a68859fd71047bb1f309048960b48eab2d83;hpb=2bd4a72f2100be7ad7d9518cb1d49bb2a5b71994

diff --git a/tc/m_ipt.c b/tc/m_ipt.c
deleted file mode 100644
index 5acc6fa..0000000
--- a/tc/m_ipt.c
+++ /dev/null
@@ -1,596 +0,0 @@
-/*
- * m_ipt.c	iptables based targets 
- * 		utilities mostly ripped from iptables <duh, its the linux way>
- *
- *		This program is free software; you can distribute 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:  J Hadi Salim (hadi@cyberus.ca) 
- * 
- * TODO: bad bad hardcoding IPT_LIB_DIR and PROC_SYS_MODPROBE
- *
-*/
-
-#include <syslog.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <linux/types.h>
-#include <iptables.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include "utils.h"
-#include "tc_util.h"
-#include <linux/tc_act/tc_ipt.h>
-#include <stdio.h>
-#include <dlfcn.h>
-#include <getopt.h>
-#include <errno.h>
-#include <string.h>
-#include <netdb.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <stdarg.h>
-#include <limits.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/wait.h>
-
-const char *pname = "tc-ipt";
-const char *tname = "mangle";
-const char *pversion = "0.1";
-
-#ifndef TRUE
-#define TRUE 1
-#endif
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#ifndef IPT_LIB_DIR
-#define IPT_LIB_DIR "/usr/local/lib/iptables"
-#endif
-
-#ifndef PROC_SYS_MODPROBE
-#define PROC_SYS_MODPROBE "/proc/sys/kernel/modprobe"
-#endif
-
-static const char *ipthooks[] = {
-	"NF_IP_PRE_ROUTING",
-	"NF_IP_LOCAL_IN",
-	"NF_IP_FORWARD",
-	"NF_IP_LOCAL_OUT",
-	"NF_IP_POST_ROUTING",
-};
-
-static struct option original_opts[] = {
-	{"jump", 1, 0, 'j'},
-	{0, 0, 0, 0}
-};
-
-static struct iptables_target *t_list = NULL;
-static struct option *opts = original_opts;
-static unsigned int global_option_offset = 0;
-#define OPTION_OFFSET 256
-
-
-void
-register_target(struct iptables_target *me)
-{
-/*      fprintf(stderr, "\nDummy register_target %s \n", me->name);
-*/
-	me->next = t_list;
-	t_list = me;
-
-}
-
-void
-exit_tryhelp(int status)
-{
-	fprintf(stderr, "Try `%s -h' or '%s --help' for more information.\n",
-		pname, pname);
-	exit(status);
-}
-
-void
-exit_error(enum exittype status, char *msg, ...)
-{
-	va_list args;
-
-	va_start(args, msg);
-	fprintf(stderr, "%s v%s: ", pname, pversion);
-	vfprintf(stderr, msg, args);
-	va_end(args);
-	fprintf(stderr, "\n");
-	if (status == PARAMETER_PROBLEM)
-		exit_tryhelp(status);
-	if (status == VERSION_PROBLEM)
-		fprintf(stderr,
-			"Perhaps iptables or your kernel needs to be upgraded.\n");
-	exit(status);
-}
-
-/* stolen from iptables 1.2.11
-They should really have them as a library so i can link to them
-Email them next time i remember
-*/
-
-char *
-addr_to_dotted(const struct in_addr *addrp)
-{
-	static char buf[20];
-	const unsigned char *bytep;
-
-	bytep = (const unsigned char *) &(addrp->s_addr);
-	sprintf(buf, "%d.%d.%d.%d", bytep[0], bytep[1], bytep[2], bytep[3]);
-	return buf;
-}
-
-int string_to_number_ll(const char *s, unsigned long long min, 
-			unsigned long long max,
-		 unsigned long long *ret)
-{
-	unsigned long long number;
-	char *end;
-
-	/* Handle hex, octal, etc. */
-	errno = 0;
-	number = strtoull(s, &end, 0);
-	if (*end == '\0' && end != s) {
-		/* we parsed a number, let's see if we want this */
-		if (errno != ERANGE && min <= number && (!max || number <= max)) {
-			*ret = number;
-			return 0;
-		}
-	}
-	return -1;
-}
-
-int string_to_number_l(const char *s, unsigned long min, unsigned long max,
-		       unsigned long *ret)
-{
-	int result;
-	unsigned long long number;
-
-	result = string_to_number_ll(s, min, max, &number);
-	*ret = (unsigned long)number;
-
-	return result;
-}
-
-int string_to_number(const char *s, unsigned int min, unsigned int max,
-		unsigned int *ret)
-{
-	int result;
-	unsigned long number;
-
-	result = string_to_number_l(s, min, max, &number);
-	*ret = (unsigned int)number;
-
-	return result;
-}
-
-static void free_opts(struct option *opts)
-{
-	if (opts != original_opts) {
-		free(opts);
-		opts = original_opts;
-		global_option_offset = 0;
-	}
-}
-
-static struct option *
-merge_options(struct option *oldopts, const struct option *newopts,
-	      unsigned int *option_offset)
-{
-	struct option *merge;
-	unsigned int num_old, num_new, i;
-
-	for (num_old = 0; oldopts[num_old].name; num_old++) ;
-	for (num_new = 0; newopts[num_new].name; num_new++) ;
-
-	*option_offset = global_option_offset + OPTION_OFFSET;
-
-	merge = malloc(sizeof (struct option) * (num_new + num_old + 1));
-	memcpy(merge, oldopts, num_old * sizeof (struct option));
-	for (i = 0; i < num_new; i++) {
-		merge[num_old + i] = newopts[i];
-		merge[num_old + i].val += *option_offset;
-	}
-	memset(merge + num_old + num_new, 0, sizeof (struct option));
-
-	return merge;
-}
-
-static void *
-fw_calloc(size_t count, size_t size)
-{
-	void *p;
-
-	if ((p = (void *) calloc(count, size)) == NULL) {
-		perror("iptables: calloc failed");
-		exit(1);
-	}
-	return p;
-}
-
-static struct iptables_target *
-find_t(char *name)
-{
-	struct iptables_target *m;
-	for (m = t_list; m; m = m->next) {
-		if (strcmp(m->name, name) == 0)
-			return m;
-	}
-
-	return NULL;
-}
-
-static struct iptables_target *
-get_target_name(char *name)
-{
-	void *handle;
-	char *error;
-	char *new_name, *lname;
-	struct iptables_target *m;
-
-	char path[sizeof (IPT_LIB_DIR) + sizeof ("/libipt_.so") + strlen(name)];
-
-	new_name = malloc(strlen(name) + 1);
-	lname = malloc(strlen(name) + 1);
-	if (new_name)
-		memset(new_name, '\0', strlen(name) + 1);
-	else
-		exit_error(PARAMETER_PROBLEM, "get_target_name");
-
-	if (lname)
-		memset(lname, '\0', strlen(name) + 1);
-	else
-		exit_error(PARAMETER_PROBLEM, "get_target_name");
-
-	strcpy(new_name, name);
-	strcpy(lname, name);
-
-	if (isupper(lname[0])) {
-		int i;
-		for (i = 0; i < strlen(name); i++) {
-			lname[i] = tolower(lname[i]);
-		}
-	}
-
-	if (islower(new_name[0])) {
-		int i;
-		for (i = 0; i < strlen(new_name); i++) {
-			new_name[i] = toupper(new_name[i]);
-		}
-	}
-
-	sprintf(path, IPT_LIB_DIR "/libipt_%s.so", new_name);
-	handle = dlopen(path, RTLD_LAZY);
-	if (!handle) {
-		sprintf(path, IPT_LIB_DIR "/libipt_%s.so", lname);
-		handle = dlopen(path, RTLD_LAZY);
-		if (!handle) {
-			fputs(dlerror(), stderr);
-			printf("\n");
-			return NULL;
-		}
-	}
-
-	m = dlsym(handle, new_name);
-	if ((error = dlerror()) != NULL) {
-		m = (struct iptables_target *) dlsym(handle, lname);
-		if ((error = dlerror()) != NULL) {
-			m = find_t(new_name);
-			if (NULL == m) {
-				m = find_t(lname);
-				if (NULL == m) {
-					fputs(error, stderr);
-					fprintf(stderr, "\n");
-					dlclose(handle);
-					return NULL;
-				}
-			}
-		}
-	}
-
-	return m;
-}
-
-
-struct in_addr *dotted_to_addr(const char *dotted)
-{
-	static struct in_addr addr;
-	unsigned char *addrp;
-	char *p, *q;
-	unsigned int onebyte;
-	int i;
-	char buf[20];
-
-	/* copy dotted string, because we need to modify it */
-	strncpy(buf, dotted, sizeof (buf) - 1);
-	addrp = (unsigned char *) &(addr.s_addr);
-
-	p = buf;
-	for (i = 0; i < 3; i++) {
-		if ((q = strchr(p, '.')) == NULL)
-			return (struct in_addr *) NULL;
-
-		*q = '\0';
-		if (string_to_number(p, 0, 255, &onebyte) == -1)
-			return (struct in_addr *) NULL;
-
-		addrp[i] = (unsigned char) onebyte;
-		p = q + 1;
-	}
-
-	/* we've checked 3 bytes, now we check the last one */
-	if (string_to_number(p, 0, 255, &onebyte) == -1)
-		return (struct in_addr *) NULL;
-
-	addrp[3] = (unsigned char) onebyte;
-
-	return &addr;
-}
-
-static void set_revision(char *name, u_int8_t revision)
-{
-	/* Old kernel sources don't have ".revision" field,
-	*  but we stole a byte from name. */
-	name[IPT_FUNCTION_MAXNAMELEN - 2] = '\0';
-	name[IPT_FUNCTION_MAXNAMELEN - 1] = revision;
-}
-
-/* 
- * we may need to check for version mismatch
-*/
-int
-build_st(struct iptables_target *target, struct ipt_entry_target *t)
-{
-	unsigned int nfcache = 0;
-
-	if (target) {
-		size_t size;
-
-		size =
-		    IPT_ALIGN(sizeof (struct ipt_entry_target)) + target->size;
-
-		if (NULL == t) {
-			target->t = fw_calloc(1, size);
-			target->t->u.target_size = size;
-
-			if (target->init != NULL)
-				target->init(target->t, &nfcache);
-			set_revision(target->t->u.user.name, target->revision);
-		} else {
-			target->t = t;
-		}
-		strcpy(target->t->u.user.name, target->name);
-		return 0;
-	}
-
-	return -1;
-}
-
-static int parse_ipt(struct action_util *a,int *argc_p, 
-		     char ***argv_p, int tca_id, struct nlmsghdr *n)
-{
-	struct iptables_target *m = NULL;
-	struct ipt_entry fw;
-	struct rtattr *tail;
-	int c;
-	int rargc = *argc_p;
-	char **argv = *argv_p;
-	int argc = 0, iargc = 0;
-	char k[16];
-	int res = -1;
-	int size = 0;
-	int iok = 0, ok = 0;
-	__u32 hook = 0, index = 0;
-	res = 0;
-
-	{
-		int i;
-		for (i = 0; i < rargc; i++) {
-			if (NULL == argv[i] || 0 == strcmp(argv[i], "action")) {
-				break;
-			}
-		}
-		iargc = argc = i;
-	}
-
-	if (argc <= 2) {
-		fprintf(stderr,"bad arguements to ipt %d vs %d \n", argc, rargc);
-		return -1;
-	}
-
-	while (1) {
-		c = getopt_long(argc, argv, "j:", opts, NULL);
-		if (c == -1)
-			break;
-		switch (c) {
-		case 'j':
-			m = get_target_name(optarg);
-			if (NULL != m) {
-
-				if (0 > build_st(m, NULL)) {
-					printf(" %s error \n", m->name);
-					return -1;
-				}
-				opts =
-				    merge_options(opts, m->extra_opts,
-						  &m->option_offset);
-			} else {
-				fprintf(stderr," failed to find target %s\n\n", optarg);
-				return -1;
-			}
-			ok++;
-			break;
-
-		default:
-			memset(&fw, 0, sizeof (fw));
-			if (m) {
-				m->parse(c - m->option_offset, argv, 0,
-					 &m->tflags, NULL, &m->t);
-			} else {
-				fprintf(stderr," failed to find target %s\n\n", optarg);
-				return -1;
-
-			}
-			ok++;
-			break;
-
-		}
-	}
-
-	if (iargc > optind) {
-		if (matches(argv[optind], "index") == 0) {
-			if (get_u32(&index, argv[optind + 1], 10)) {
-				fprintf(stderr, "Illegal \"index\"\n");
-				free_opts(opts);
-				return -1;
-			}
-			iok++;
-
-			optind += 2;
-		}
-	}
-
-	if (!ok && !iok) {
-		fprintf(stderr," ipt Parser BAD!! (%s)\n", *argv);
-		return -1;
-	}
-
-	/* check that we passed the correct parameters to the target */
-	if (m)
-		m->final_check(m->tflags);
-
-	{
-		struct tcmsg *t = NLMSG_DATA(n);
-		if (t->tcm_parent != TC_H_ROOT
-		    && t->tcm_parent == TC_H_MAJ(TC_H_INGRESS)) {
-			hook = NF_IP_PRE_ROUTING;
-		} else {
-			hook = NF_IP_POST_ROUTING;
-		}
-	}
-
-	tail = NLMSG_TAIL(n);
-	addattr_l(n, MAX_MSG, tca_id, NULL, 0);
-	fprintf(stdout, "tablename: %s hook: %s\n ", tname, ipthooks[hook]);
-	fprintf(stdout, "\ttarget: ");
-
-	if (m)
-		m->print(NULL, m->t, 0);
-	fprintf(stdout, " index %d\n", index);
-
-	if (strlen(tname) > 16) {
-		size = 16;
-		k[15] = 0;
-	} else {
-		size = 1 + strlen(tname);
-	}
-	strncpy(k, tname, size);
-
-	addattr_l(n, MAX_MSG, TCA_IPT_TABLE, k, size);
-	addattr_l(n, MAX_MSG, TCA_IPT_HOOK, &hook, 4);
-	addattr_l(n, MAX_MSG, TCA_IPT_INDEX, &index, 4);
-	if (m)
-		addattr_l(n, MAX_MSG, TCA_IPT_TARG, m->t, m->t->u.target_size);
-	tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
-
-	argc -= optind;
-	argv += optind;
-	*argc_p = rargc - iargc;
-	*argv_p = argv;
-	
-	optind = 1;
-	free_opts(opts);
-
-	return 0;
-
-}
-
-static int
-print_ipt(struct action_util *au,FILE * f, struct rtattr *arg)
-{
-	struct rtattr *tb[TCA_IPT_MAX + 1];
-	struct ipt_entry_target *t = NULL;
-
-	if (arg == NULL)
-		return -1;
-
-	parse_rtattr_nested(tb, TCA_IPT_MAX, arg);
-
-	if (tb[TCA_IPT_TABLE] == NULL) {
-		fprintf(f, "[NULL ipt table name ] assuming mangle ");
-	} else {
-		fprintf(f, "tablename: %s ",
-			(char *) RTA_DATA(tb[TCA_IPT_TABLE]));
-	}
-
-	if (tb[TCA_IPT_HOOK] == NULL) {
-		fprintf(f, "[NULL ipt hook name ]\n ");
-		return -1;
-	} else {
-		__u32 hook;
-		hook = *(__u32 *) RTA_DATA(tb[TCA_IPT_HOOK]);
-		fprintf(f, " hook: %s \n", ipthooks[hook]);
-	}
-
-	if (tb[TCA_IPT_TARG] == NULL) {
-		fprintf(f, "\t[NULL ipt target parameters ] \n");
-		return -1;
-	} else {
-		struct iptables_target *m = NULL;
-		t = RTA_DATA(tb[TCA_IPT_TARG]);
-		m = get_target_name(t->u.user.name);
-		if (NULL != m) {
-			if (0 > build_st(m, t)) {
-				fprintf(stderr, " %s error \n", m->name);
-				return -1;
-			}
-
-			opts =
-			    merge_options(opts, m->extra_opts,
-					  &m->option_offset);
-		} else {
-			fprintf(stderr, " failed to find target %s\n\n",
-				t->u.user.name);
-			return -1;
-		}
-		fprintf(f, "\ttarget ");
-		m->print(NULL, m->t, 0);
-		if (tb[TCA_IPT_INDEX] == NULL) {
-			fprintf(f, " [NULL ipt target index ]\n");
-		} else {
-			__u32 index;
-			index = *(__u32 *) RTA_DATA(tb[TCA_IPT_INDEX]);
-			fprintf(f, " \n\tindex %d", index);
-		}
-
-		if (tb[TCA_IPT_CNT]) {
-			struct tc_cnt *c  = RTA_DATA(tb[TCA_IPT_CNT]);;
-			fprintf(f, " ref %d bind %d", c->refcnt, c->bindcnt);
-		}
-		if (show_stats) {
-			if (tb[TCA_IPT_TM]) {
-				struct tcf_t *tm = RTA_DATA(tb[TCA_IPT_TM]);
-				print_tm(f,tm);
-			}
-		} 
-		fprintf(f, " \n");
-
-	}
-	free_opts(opts);
-
-	return 0;
-}
-
-struct action_util ipt_action_util = {
-        .id = "ipt",
-        .parse_aopt = parse_ipt,
-        .print_aopt = print_ipt,
-};
-