1309 lines
28 KiB
C
Executable File
1309 lines
28 KiB
C
Executable File
/* $USAGI: $ */
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/*
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* Copyright (C)2004 USAGI/WIDE Project
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* based on ip.c, iproute.c
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*/
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/*
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* Authors:
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* Masahide NAKAMURA @USAGI
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <time.h>
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#include <netdb.h>
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#include <linux/netlink.h>
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#include <linux/rtnetlink.h>
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#include <linux/xfrm.h>
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#include "utils.h"
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#include "xfrm.h"
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#define STRBUF_SIZE (128)
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#define STRBUF_CAT(buf, str) \
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do { \
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int rest = sizeof(buf) - 1 - strlen(buf); \
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if (rest > 0) { \
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int len = strlen(str); \
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if (len > rest) \
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len = rest; \
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strncat(buf, str, len); \
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buf[sizeof(buf) - 1] = '\0'; \
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} \
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} while(0);
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struct xfrm_filter filter;
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static void usage(void) __attribute__((noreturn));
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static void usage(void)
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{
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fprintf(stderr,
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"Usage: ip xfrm XFRM_OBJECT { COMMAND | help }\n"
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"where XFRM_OBJECT := { state | policy | monitor }\n");
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exit(-1);
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}
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/* This is based on utils.c(inet_addr_match) */
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int xfrm_addr_match(xfrm_address_t *x1, xfrm_address_t *x2, int bits)
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{
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__u32 *a1 = (__u32 *)x1;
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__u32 *a2 = (__u32 *)x2;
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int words = bits >> 0x05;
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bits &= 0x1f;
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if (words)
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if (memcmp(a1, a2, words << 2))
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return -1;
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if (bits) {
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__u32 w1, w2;
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__u32 mask;
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w1 = a1[words];
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w2 = a2[words];
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mask = htonl((0xffffffff) << (0x20 - bits));
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if ((w1 ^ w2) & mask)
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return 1;
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}
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return 0;
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}
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int xfrm_xfrmproto_is_ipsec(__u8 proto)
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{
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return (proto == IPPROTO_ESP ||
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proto == IPPROTO_AH ||
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proto == IPPROTO_COMP);
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}
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int xfrm_xfrmproto_is_ro(__u8 proto)
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{
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return (proto == IPPROTO_ROUTING ||
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proto == IPPROTO_DSTOPTS);
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}
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struct typeent {
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const char *t_name;
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int t_type;
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};
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static const struct typeent xfrmproto_types[]= {
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{ "esp", IPPROTO_ESP }, { "ah", IPPROTO_AH }, { "comp", IPPROTO_COMP },
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{ "route2", IPPROTO_ROUTING }, { "hao", IPPROTO_DSTOPTS },
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{ "ipsec-any", IPSEC_PROTO_ANY },
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{ NULL, -1 }
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};
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int xfrm_xfrmproto_getbyname(char *name)
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{
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int i;
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for (i = 0; ; i++) {
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const struct typeent *t = &xfrmproto_types[i];
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if (!t->t_name || t->t_type == -1)
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break;
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if (strcmp(t->t_name, name) == 0)
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return t->t_type;
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}
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return -1;
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}
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const char *strxf_xfrmproto(__u8 proto)
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{
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static char str[16];
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int i;
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for (i = 0; ; i++) {
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const struct typeent *t = &xfrmproto_types[i];
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if (!t->t_name || t->t_type == -1)
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break;
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if (t->t_type == proto)
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return t->t_name;
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}
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sprintf(str, "%u", proto);
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return str;
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}
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static const struct typeent algo_types[]= {
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{ "enc", XFRMA_ALG_CRYPT }, { "auth", XFRMA_ALG_AUTH },
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{ "comp", XFRMA_ALG_COMP }, { NULL, -1 }
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};
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int xfrm_algotype_getbyname(char *name)
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{
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int i;
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for (i = 0; ; i++) {
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const struct typeent *t = &algo_types[i];
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if (!t->t_name || t->t_type == -1)
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break;
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if (strcmp(t->t_name, name) == 0)
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return t->t_type;
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}
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return -1;
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}
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const char *strxf_algotype(int type)
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{
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static char str[32];
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int i;
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for (i = 0; ; i++) {
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const struct typeent *t = &algo_types[i];
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if (!t->t_name || t->t_type == -1)
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break;
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if (t->t_type == type)
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return t->t_name;
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}
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sprintf(str, "%d", type);
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return str;
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}
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const char *strxf_mask8(__u8 mask)
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{
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static char str[16];
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const int sn = sizeof(mask) * 8 - 1;
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__u8 b;
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int i = 0;
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for (b = (1 << sn); b > 0; b >>= 1)
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str[i++] = ((b & mask) ? '1' : '0');
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str[i] = '\0';
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return str;
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}
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const char *strxf_mask32(__u32 mask)
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{
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static char str[16];
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sprintf(str, "%.8x", mask);
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return str;
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}
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const char *strxf_share(__u8 share)
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{
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static char str[32];
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switch (share) {
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case XFRM_SHARE_ANY:
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strcpy(str, "any");
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break;
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case XFRM_SHARE_SESSION:
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strcpy(str, "session");
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break;
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case XFRM_SHARE_USER:
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strcpy(str, "user");
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break;
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case XFRM_SHARE_UNIQUE:
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strcpy(str, "unique");
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break;
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default:
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sprintf(str, "%u", share);
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break;
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}
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return str;
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}
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const char *strxf_proto(__u8 proto)
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{
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static char buf[32];
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struct protoent *pp;
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const char *p;
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pp = getprotobynumber(proto);
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if (pp)
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p = pp->p_name;
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else {
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sprintf(buf, "%u", proto);
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p = buf;
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}
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return p;
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}
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const char *strxf_ptype(__u8 ptype)
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{
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static char str[16];
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switch (ptype) {
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case XFRM_POLICY_TYPE_MAIN:
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strcpy(str, "main");
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break;
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case XFRM_POLICY_TYPE_SUB:
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strcpy(str, "sub");
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break;
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default:
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sprintf(str, "%u", ptype);
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break;
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}
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return str;
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}
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void xfrm_id_info_print(xfrm_address_t *saddr, struct xfrm_id *id,
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__u8 mode, __u32 reqid, __u16 family, int force_spi,
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FILE *fp, const char *prefix, const char *title)
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{
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char abuf[256];
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if (title)
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fprintf(fp, title);
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memset(abuf, '\0', sizeof(abuf));
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fprintf(fp, "src %s ", rt_addr_n2a(family, sizeof(*saddr),
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saddr, abuf, sizeof(abuf)));
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memset(abuf, '\0', sizeof(abuf));
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fprintf(fp, "dst %s", rt_addr_n2a(family, sizeof(id->daddr),
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&id->daddr, abuf, sizeof(abuf)));
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fprintf(fp, "%s", _SL_);
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, "\t");
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fprintf(fp, "proto %s ", strxf_xfrmproto(id->proto));
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if (show_stats > 0 || force_spi || id->spi) {
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__u32 spi = ntohl(id->spi);
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fprintf(fp, "spi 0x%08x", spi);
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if (show_stats > 0)
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fprintf(fp, "(%u)", spi);
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fprintf(fp, " ");
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}
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fprintf(fp, "reqid %u", reqid);
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if (show_stats > 0)
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fprintf(fp, "(0x%08x)", reqid);
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fprintf(fp, " ");
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fprintf(fp, "mode ");
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switch (mode) {
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case XFRM_MODE_TRANSPORT:
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fprintf(fp, "transport");
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break;
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case XFRM_MODE_TUNNEL:
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fprintf(fp, "tunnel");
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break;
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case XFRM_MODE_ROUTEOPTIMIZATION:
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fprintf(fp, "ro");
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break;
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case XFRM_MODE_IN_TRIGGER:
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fprintf(fp, "in_trigger");
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break;
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case XFRM_MODE_BEET:
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fprintf(fp, "beet");
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break;
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default:
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fprintf(fp, "%u", mode);
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break;
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}
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fprintf(fp, "%s", _SL_);
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}
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static const char *strxf_limit(__u64 limit)
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{
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static char str[32];
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if (limit == XFRM_INF)
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strcpy(str, "(INF)");
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else
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sprintf(str, "%llu", (unsigned long long) limit);
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return str;
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}
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void xfrm_stats_print(struct xfrm_stats *s, FILE *fp, const char *prefix)
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{
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, "stats:");
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fprintf(fp, "%s", _SL_);
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, " ");
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fprintf(fp, "replay-window %u ", s->replay_window);
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fprintf(fp, "replay %u ", s->replay);
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fprintf(fp, "failed %u", s->integrity_failed);
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fprintf(fp, "%s", _SL_);
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}
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static const char *strxf_time(__u64 time)
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{
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static char str[32];
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if (time == 0)
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strcpy(str, "-");
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else {
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time_t t;
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struct tm *tp;
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/* XXX: treat time in the same manner of kernel's
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* net/xfrm/xfrm_{user,state}.c
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*/
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t = (long)time;
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tp = localtime(&t);
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strftime(str, sizeof(str), "%Y-%m-%d %T", tp);
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}
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return str;
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}
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void xfrm_lifetime_print(struct xfrm_lifetime_cfg *cfg,
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struct xfrm_lifetime_cur *cur,
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FILE *fp, const char *prefix)
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{
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if (cfg) {
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, "lifetime config:");
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fprintf(fp, "%s", _SL_);
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, " ");
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fprintf(fp, "limit: ");
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fprintf(fp, "soft ");
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fprintf(fp, strxf_limit(cfg->soft_byte_limit));
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fprintf(fp, "(bytes), hard ");
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fprintf(fp, strxf_limit(cfg->hard_byte_limit));
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fprintf(fp, "(bytes)");
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fprintf(fp, "%s", _SL_);
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, " ");
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fprintf(fp, "limit: ");
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fprintf(fp, "soft ");
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fprintf(fp, strxf_limit(cfg->soft_packet_limit));
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fprintf(fp, "(packets), hard ");
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fprintf(fp, strxf_limit(cfg->hard_packet_limit));
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fprintf(fp, "(packets)");
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fprintf(fp, "%s", _SL_);
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, " ");
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fprintf(fp, "expire add: ");
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fprintf(fp, "soft ");
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fprintf(fp, "%llu", (unsigned long long) cfg->soft_add_expires_seconds);
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fprintf(fp, "(sec), hard ");
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fprintf(fp, "%llu", (unsigned long long) cfg->hard_add_expires_seconds);
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fprintf(fp, "(sec)");
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fprintf(fp, "%s", _SL_);
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, " ");
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fprintf(fp, "expire use: ");
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fprintf(fp, "soft ");
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fprintf(fp, "%llu", (unsigned long long) cfg->soft_use_expires_seconds);
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fprintf(fp, "(sec), hard ");
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fprintf(fp, "%llu", (unsigned long long) cfg->hard_use_expires_seconds);
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fprintf(fp, "(sec)");
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fprintf(fp, "%s", _SL_);
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}
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if (cur) {
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, "lifetime current:");
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fprintf(fp, "%s", _SL_);
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, " ");
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fprintf(fp, "%llu(bytes), ", (unsigned long long) cur->bytes);
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fprintf(fp, "%llu(packets)", (unsigned long long) cur->packets);
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fprintf(fp, "%s", _SL_);
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if (prefix)
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fprintf(fp, prefix);
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fprintf(fp, " ");
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fprintf(fp, "add %s ", strxf_time(cur->add_time));
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fprintf(fp, "use %s", strxf_time(cur->use_time));
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fprintf(fp, "%s", _SL_);
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}
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}
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void xfrm_selector_print(struct xfrm_selector *sel, __u16 family,
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FILE *fp, const char *prefix)
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{
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char abuf[256];
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__u16 f;
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f = sel->family;
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if (f == AF_UNSPEC)
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f = family;
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if (f == AF_UNSPEC)
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f = preferred_family;
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|
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if (prefix)
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fprintf(fp, prefix);
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memset(abuf, '\0', sizeof(abuf));
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fprintf(fp, "src %s/%u ", rt_addr_n2a(f, sizeof(sel->saddr),
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&sel->saddr, abuf, sizeof(abuf)),
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sel->prefixlen_s);
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memset(abuf, '\0', sizeof(abuf));
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fprintf(fp, "dst %s/%u ", rt_addr_n2a(f, sizeof(sel->daddr),
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&sel->daddr, abuf, sizeof(abuf)),
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sel->prefixlen_d);
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|
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if (sel->proto)
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fprintf(fp, "proto %s ", strxf_proto(sel->proto));
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switch (sel->proto) {
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case IPPROTO_TCP:
|
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case IPPROTO_UDP:
|
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case IPPROTO_SCTP:
|
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case IPPROTO_DCCP:
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default: /* XXX */
|
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if (sel->sport_mask)
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fprintf(fp, "sport %u ", ntohs(sel->sport));
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if (sel->dport_mask)
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fprintf(fp, "dport %u ", ntohs(sel->dport));
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break;
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case IPPROTO_ICMP:
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case IPPROTO_ICMPV6:
|
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/* type/code is stored at sport/dport in selector */
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if (sel->sport_mask)
|
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fprintf(fp, "type %u ", ntohs(sel->sport));
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if (sel->dport_mask)
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fprintf(fp, "code %u ", ntohs(sel->dport));
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break;
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case IPPROTO_MH:
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if (sel->sport_mask)
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fprintf(fp, "type %u ", ntohs(sel->sport));
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if (sel->dport_mask) {
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if (show_stats > 0)
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fprintf(fp, "(dport) 0x%.4x ", sel->dport);
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}
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break;
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}
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|
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if (sel->ifindex > 0)
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fprintf(fp, "dev %s ", ll_index_to_name(sel->ifindex));
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|
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if (show_stats > 0)
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fprintf(fp, "uid %u", sel->user);
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|
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fprintf(fp, "%s", _SL_);
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}
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|
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static void xfrm_algo_print(struct xfrm_algo *algo, int type, int len,
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FILE *fp, const char *prefix)
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{
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int keylen;
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int i;
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|
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if (prefix)
|
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fprintf(fp, prefix);
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|
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fprintf(fp, "%s ", strxf_algotype(type));
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|
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if (len < sizeof(*algo)) {
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fprintf(fp, "(ERROR truncated)");
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goto fin;
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}
|
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len -= sizeof(*algo);
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|
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fprintf(fp, "%s ", algo->alg_name);
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|
|
keylen = algo->alg_key_len / 8;
|
|
if (len < keylen) {
|
|
fprintf(fp, "(ERROR truncated)");
|
|
goto fin;
|
|
}
|
|
|
|
fprintf(fp, "0x");
|
|
for (i = 0; i < keylen; i ++)
|
|
fprintf(fp, "%.2x", (unsigned char)algo->alg_key[i]);
|
|
|
|
if (show_stats > 0)
|
|
fprintf(fp, " (%d bits)", algo->alg_key_len);
|
|
|
|
fin:
|
|
fprintf(fp, "%s", _SL_);
|
|
}
|
|
|
|
static void xfrm_tmpl_print(struct xfrm_user_tmpl *tmpls, int len,
|
|
__u16 family, FILE *fp, const char *prefix)
|
|
{
|
|
int ntmpls = len / sizeof(struct xfrm_user_tmpl);
|
|
int i;
|
|
|
|
if (ntmpls <= 0) {
|
|
if (prefix)
|
|
fprintf(fp, prefix);
|
|
fprintf(fp, "(ERROR \"tmpl\" truncated)");
|
|
fprintf(fp, "%s", _SL_);
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < ntmpls; i++) {
|
|
struct xfrm_user_tmpl *tmpl = &tmpls[i];
|
|
|
|
if (prefix)
|
|
fprintf(fp, prefix);
|
|
|
|
xfrm_id_info_print(&tmpl->saddr, &tmpl->id, tmpl->mode,
|
|
tmpl->reqid, family, 0, fp, prefix, "tmpl ");
|
|
|
|
if (show_stats > 0 || tmpl->optional) {
|
|
if (prefix)
|
|
fprintf(fp, prefix);
|
|
fprintf(fp, "\t");
|
|
switch (tmpl->optional) {
|
|
case 0:
|
|
if (show_stats > 0)
|
|
fprintf(fp, "level required ");
|
|
break;
|
|
case 1:
|
|
fprintf(fp, "level use ");
|
|
break;
|
|
default:
|
|
fprintf(fp, "level %u ", tmpl->optional);
|
|
break;
|
|
}
|
|
|
|
if (show_stats > 0)
|
|
fprintf(fp, "share %s ", strxf_share(tmpl->share));
|
|
|
|
fprintf(fp, "%s", _SL_);
|
|
}
|
|
|
|
if (show_stats > 0) {
|
|
if (prefix)
|
|
fprintf(fp, prefix);
|
|
fprintf(fp, "\t");
|
|
fprintf(fp, "%s-mask %s ",
|
|
strxf_algotype(XFRMA_ALG_CRYPT),
|
|
strxf_mask32(tmpl->ealgos));
|
|
fprintf(fp, "%s-mask %s ",
|
|
strxf_algotype(XFRMA_ALG_AUTH),
|
|
strxf_mask32(tmpl->aalgos));
|
|
fprintf(fp, "%s-mask %s",
|
|
strxf_algotype(XFRMA_ALG_COMP),
|
|
strxf_mask32(tmpl->calgos));
|
|
|
|
fprintf(fp, "%s", _SL_);
|
|
}
|
|
}
|
|
}
|
|
|
|
void xfrm_xfrma_print(struct rtattr *tb[], __u16 family,
|
|
FILE *fp, const char *prefix)
|
|
{
|
|
if (tb[XFRMA_ALG_AUTH]) {
|
|
struct rtattr *rta = tb[XFRMA_ALG_AUTH];
|
|
xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
|
|
XFRMA_ALG_AUTH, RTA_PAYLOAD(rta), fp, prefix);
|
|
}
|
|
|
|
if (tb[XFRMA_ALG_CRYPT]) {
|
|
struct rtattr *rta = tb[XFRMA_ALG_CRYPT];
|
|
xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
|
|
XFRMA_ALG_CRYPT, RTA_PAYLOAD(rta), fp, prefix);
|
|
}
|
|
|
|
if (tb[XFRMA_ALG_COMP]) {
|
|
struct rtattr *rta = tb[XFRMA_ALG_COMP];
|
|
xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
|
|
XFRMA_ALG_COMP, RTA_PAYLOAD(rta), fp, prefix);
|
|
}
|
|
|
|
if (tb[XFRMA_ENCAP]) {
|
|
struct xfrm_encap_tmpl *e;
|
|
char abuf[256];
|
|
|
|
if (prefix)
|
|
fprintf(fp, prefix);
|
|
fprintf(fp, "encap ");
|
|
|
|
if (RTA_PAYLOAD(tb[XFRMA_ENCAP]) < sizeof(*e)) {
|
|
fprintf(fp, "(ERROR truncated)");
|
|
fprintf(fp, "%s", _SL_);
|
|
return;
|
|
}
|
|
e = (struct xfrm_encap_tmpl *) RTA_DATA(tb[XFRMA_ENCAP]);
|
|
|
|
fprintf(fp, "type ");
|
|
switch (e->encap_type) {
|
|
case 1:
|
|
fprintf(fp, "espinudp-nonike ");
|
|
break;
|
|
case 2:
|
|
fprintf(fp, "espinudp ");
|
|
break;
|
|
default:
|
|
fprintf(fp, "%u ", e->encap_type);
|
|
break;
|
|
}
|
|
fprintf(fp, "sport %u ", ntohs(e->encap_sport));
|
|
fprintf(fp, "dport %u ", ntohs(e->encap_dport));
|
|
|
|
memset(abuf, '\0', sizeof(abuf));
|
|
fprintf(fp, "addr %s",
|
|
rt_addr_n2a(family, sizeof(e->encap_oa),
|
|
&e->encap_oa, abuf, sizeof(abuf)));
|
|
fprintf(fp, "%s", _SL_);
|
|
}
|
|
|
|
if (tb[XFRMA_TMPL]) {
|
|
struct rtattr *rta = tb[XFRMA_TMPL];
|
|
xfrm_tmpl_print((struct xfrm_user_tmpl *) RTA_DATA(rta),
|
|
RTA_PAYLOAD(rta), family, fp, prefix);
|
|
}
|
|
|
|
if (tb[XFRMA_COADDR]) {
|
|
char abuf[256];
|
|
xfrm_address_t *coa;
|
|
|
|
if (prefix)
|
|
fprintf(fp, prefix);
|
|
fprintf(fp, "coa ");
|
|
|
|
coa = (xfrm_address_t *)RTA_DATA(tb[XFRMA_COADDR]);
|
|
|
|
if (RTA_PAYLOAD(tb[XFRMA_COADDR]) < sizeof(*coa)) {
|
|
fprintf(fp, "(ERROR truncated)");
|
|
fprintf(fp, "%s", _SL_);
|
|
return;
|
|
}
|
|
|
|
memset(abuf, '\0', sizeof(abuf));
|
|
fprintf(fp, "%s",
|
|
rt_addr_n2a(family, sizeof(*coa), coa,
|
|
abuf, sizeof(abuf)));
|
|
fprintf(fp, "%s", _SL_);
|
|
}
|
|
|
|
if (tb[XFRMA_LASTUSED]) {
|
|
__u64 lastused;
|
|
|
|
if (prefix)
|
|
fprintf(fp, prefix);
|
|
fprintf(fp, "lastused ");
|
|
|
|
if (RTA_PAYLOAD(tb[XFRMA_LASTUSED]) < sizeof(lastused)) {
|
|
fprintf(fp, "(ERROR truncated)");
|
|
fprintf(fp, "%s", _SL_);
|
|
return;
|
|
}
|
|
|
|
lastused = *(__u64 *)RTA_DATA(tb[XFRMA_LASTUSED]);
|
|
|
|
fprintf(fp, "%s", strxf_time(lastused));
|
|
fprintf(fp, "%s", _SL_);
|
|
}
|
|
}
|
|
|
|
static int xfrm_selector_iszero(struct xfrm_selector *s)
|
|
{
|
|
struct xfrm_selector s0;
|
|
|
|
memset(&s0, 0, sizeof(s0));
|
|
|
|
return (memcmp(&s0, s, sizeof(s0)) == 0);
|
|
}
|
|
|
|
void xfrm_state_info_print(struct xfrm_usersa_info *xsinfo,
|
|
struct rtattr *tb[], FILE *fp, const char *prefix,
|
|
const char *title)
|
|
{
|
|
char buf[STRBUF_SIZE];
|
|
int force_spi = xfrm_xfrmproto_is_ipsec(xsinfo->id.proto);
|
|
|
|
memset(buf, '\0', sizeof(buf));
|
|
|
|
xfrm_id_info_print(&xsinfo->saddr, &xsinfo->id, xsinfo->mode,
|
|
xsinfo->reqid, xsinfo->family, force_spi, fp,
|
|
prefix, title);
|
|
|
|
if (prefix)
|
|
STRBUF_CAT(buf, prefix);
|
|
STRBUF_CAT(buf, "\t");
|
|
|
|
fprintf(fp, buf);
|
|
fprintf(fp, "replay-window %u ", xsinfo->replay_window);
|
|
if (show_stats > 0)
|
|
fprintf(fp, "seq 0x%08u ", xsinfo->seq);
|
|
if (show_stats > 0 || xsinfo->flags) {
|
|
__u8 flags = xsinfo->flags;
|
|
|
|
fprintf(fp, "flag ");
|
|
XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOECN, "noecn");
|
|
XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_DECAP_DSCP, "decap-dscp");
|
|
XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_NOPMTUDISC, "nopmtudisc");
|
|
XFRM_FLAG_PRINT(fp, flags, XFRM_STATE_WILDRECV, "wildrecv");
|
|
if (flags)
|
|
fprintf(fp, "%x", flags);
|
|
}
|
|
if (show_stats > 0)
|
|
fprintf(fp, " (0x%s)", strxf_mask8(xsinfo->flags));
|
|
fprintf(fp, "%s", _SL_);
|
|
|
|
xfrm_xfrma_print(tb, xsinfo->family, fp, buf);
|
|
|
|
if (!xfrm_selector_iszero(&xsinfo->sel)) {
|
|
char sbuf[STRBUF_SIZE];
|
|
|
|
memcpy(sbuf, buf, sizeof(sbuf));
|
|
STRBUF_CAT(sbuf, "sel ");
|
|
|
|
xfrm_selector_print(&xsinfo->sel, xsinfo->family, fp, sbuf);
|
|
}
|
|
|
|
if (show_stats > 0) {
|
|
xfrm_lifetime_print(&xsinfo->lft, &xsinfo->curlft, fp, buf);
|
|
xfrm_stats_print(&xsinfo->stats, fp, buf);
|
|
}
|
|
}
|
|
|
|
void xfrm_policy_info_print(struct xfrm_userpolicy_info *xpinfo,
|
|
struct rtattr *tb[], FILE *fp, const char *prefix,
|
|
const char *title)
|
|
{
|
|
char buf[STRBUF_SIZE];
|
|
|
|
memset(buf, '\0', sizeof(buf));
|
|
|
|
xfrm_selector_print(&xpinfo->sel, preferred_family, fp, title);
|
|
|
|
if (prefix)
|
|
STRBUF_CAT(buf, prefix);
|
|
STRBUF_CAT(buf, "\t");
|
|
|
|
fprintf(fp, buf);
|
|
fprintf(fp, "dir ");
|
|
switch (xpinfo->dir) {
|
|
case XFRM_POLICY_IN:
|
|
fprintf(fp, "in");
|
|
break;
|
|
case XFRM_POLICY_OUT:
|
|
fprintf(fp, "out");
|
|
break;
|
|
case XFRM_POLICY_FWD:
|
|
fprintf(fp, "fwd");
|
|
break;
|
|
default:
|
|
fprintf(fp, "%u", xpinfo->dir);
|
|
break;
|
|
}
|
|
fprintf(fp, " ");
|
|
|
|
switch (xpinfo->action) {
|
|
case XFRM_POLICY_ALLOW:
|
|
if (show_stats > 0)
|
|
fprintf(fp, "action allow ");
|
|
break;
|
|
case XFRM_POLICY_BLOCK:
|
|
fprintf(fp, "action block ");
|
|
break;
|
|
default:
|
|
fprintf(fp, "action %u ", xpinfo->action);
|
|
break;
|
|
}
|
|
|
|
if (show_stats)
|
|
fprintf(fp, "index %u ", xpinfo->index);
|
|
fprintf(fp, "priority %u ", xpinfo->priority);
|
|
|
|
if (tb[XFRMA_POLICY_TYPE]) {
|
|
struct xfrm_userpolicy_type *upt;
|
|
|
|
fprintf(fp, "ptype ");
|
|
|
|
if (RTA_PAYLOAD(tb[XFRMA_POLICY_TYPE]) < sizeof(*upt))
|
|
fprintf(fp, "(ERROR truncated)");
|
|
|
|
upt = (struct xfrm_userpolicy_type *)RTA_DATA(tb[XFRMA_POLICY_TYPE]);
|
|
fprintf(fp, "%s ", strxf_ptype(upt->type));
|
|
}
|
|
|
|
if (show_stats > 0)
|
|
fprintf(fp, "share %s ", strxf_share(xpinfo->share));
|
|
|
|
if (show_stats > 0 || xpinfo->flags) {
|
|
__u8 flags = xpinfo->flags;
|
|
|
|
fprintf(fp, "flag ");
|
|
XFRM_FLAG_PRINT(fp, flags, XFRM_POLICY_LOCALOK, "localok");
|
|
if (flags)
|
|
fprintf(fp, "%x", flags);
|
|
}
|
|
if (show_stats > 0)
|
|
fprintf(fp, " (0x%s)", strxf_mask8(xpinfo->flags));
|
|
fprintf(fp, "%s", _SL_);
|
|
|
|
if (show_stats > 0)
|
|
xfrm_lifetime_print(&xpinfo->lft, &xpinfo->curlft, fp, buf);
|
|
|
|
xfrm_xfrma_print(tb, xpinfo->sel.family, fp, buf);
|
|
}
|
|
|
|
int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
|
|
int loose, int *argcp, char ***argvp)
|
|
{
|
|
int argc = *argcp;
|
|
char **argv = *argvp;
|
|
inet_prefix dst;
|
|
inet_prefix src;
|
|
|
|
memset(&dst, 0, sizeof(dst));
|
|
memset(&src, 0, sizeof(src));
|
|
|
|
while (1) {
|
|
if (strcmp(*argv, "src") == 0) {
|
|
NEXT_ARG();
|
|
|
|
get_prefix(&src, *argv, preferred_family);
|
|
if (src.family == AF_UNSPEC)
|
|
invarg("\"src\" address family is AF_UNSPEC", *argv);
|
|
if (family)
|
|
*family = src.family;
|
|
|
|
memcpy(saddr, &src.data, sizeof(*saddr));
|
|
|
|
filter.id_src_mask = src.bitlen;
|
|
|
|
} else if (strcmp(*argv, "dst") == 0) {
|
|
NEXT_ARG();
|
|
|
|
get_prefix(&dst, *argv, preferred_family);
|
|
if (dst.family == AF_UNSPEC)
|
|
invarg("\"dst\" address family is AF_UNSPEC", *argv);
|
|
if (family)
|
|
*family = dst.family;
|
|
|
|
memcpy(&id->daddr, &dst.data, sizeof(id->daddr));
|
|
|
|
filter.id_dst_mask = dst.bitlen;
|
|
|
|
} else if (strcmp(*argv, "proto") == 0) {
|
|
int ret;
|
|
|
|
NEXT_ARG();
|
|
|
|
ret = xfrm_xfrmproto_getbyname(*argv);
|
|
if (ret < 0)
|
|
invarg("\"XFRM_PROTO\" is invalid", *argv);
|
|
|
|
id->proto = (__u8)ret;
|
|
|
|
filter.id_proto_mask = XFRM_FILTER_MASK_FULL;
|
|
|
|
} else if (strcmp(*argv, "spi") == 0) {
|
|
__u32 spi;
|
|
|
|
NEXT_ARG();
|
|
if (get_u32(&spi, *argv, 0))
|
|
invarg("\"SPI\" is invalid", *argv);
|
|
|
|
spi = htonl(spi);
|
|
id->spi = spi;
|
|
|
|
filter.id_spi_mask = XFRM_FILTER_MASK_FULL;
|
|
|
|
} else {
|
|
PREV_ARG(); /* back track */
|
|
break;
|
|
}
|
|
|
|
if (!NEXT_ARG_OK())
|
|
break;
|
|
NEXT_ARG();
|
|
}
|
|
|
|
if (src.family && dst.family && (src.family != dst.family))
|
|
invarg("the same address family is required between \"src\" and \"dst\"", *argv);
|
|
|
|
if (loose == 0 && id->proto == 0)
|
|
missarg("XFRM_PROTO");
|
|
if (argc == *argcp)
|
|
missarg("ID");
|
|
|
|
*argcp = argc;
|
|
*argvp = argv;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int xfrm_mode_parse(__u8 *mode, int *argcp, char ***argvp)
|
|
{
|
|
int argc = *argcp;
|
|
char **argv = *argvp;
|
|
|
|
if (matches(*argv, "transport") == 0)
|
|
*mode = XFRM_MODE_TRANSPORT;
|
|
else if (matches(*argv, "tunnel") == 0)
|
|
*mode = XFRM_MODE_TUNNEL;
|
|
else if (matches(*argv, "ro") == 0)
|
|
*mode = XFRM_MODE_ROUTEOPTIMIZATION;
|
|
else if (matches(*argv, "in_trigger") == 0)
|
|
*mode = XFRM_MODE_IN_TRIGGER;
|
|
else if (matches(*argv, "beet") == 0)
|
|
*mode = XFRM_MODE_BEET;
|
|
else
|
|
invarg("\"MODE\" is invalid", *argv);
|
|
|
|
*argcp = argc;
|
|
*argvp = argv;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int xfrm_encap_type_parse(__u16 *type, int *argcp, char ***argvp)
|
|
{
|
|
int argc = *argcp;
|
|
char **argv = *argvp;
|
|
|
|
if (strcmp(*argv, "espinudp-nonike") == 0)
|
|
*type = 1;
|
|
else if (strcmp(*argv, "espinudp") == 0)
|
|
*type = 2;
|
|
else
|
|
invarg("\"ENCAP-TYPE\" is invalid", *argv);
|
|
|
|
*argcp = argc;
|
|
*argvp = argv;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* NOTE: reqid is used by host-byte order */
|
|
int xfrm_reqid_parse(__u32 *reqid, int *argcp, char ***argvp)
|
|
{
|
|
int argc = *argcp;
|
|
char **argv = *argvp;
|
|
|
|
if (get_u32(reqid, *argv, 0))
|
|
invarg("\"REQID\" is invalid", *argv);
|
|
|
|
*argcp = argc;
|
|
*argvp = argv;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int xfrm_selector_upspec_parse(struct xfrm_selector *sel,
|
|
int *argcp, char ***argvp)
|
|
{
|
|
int argc = *argcp;
|
|
char **argv = *argvp;
|
|
char *sportp = NULL;
|
|
char *dportp = NULL;
|
|
char *typep = NULL;
|
|
char *codep = NULL;
|
|
|
|
while (1) {
|
|
if (strcmp(*argv, "proto") == 0) {
|
|
__u8 upspec;
|
|
|
|
NEXT_ARG();
|
|
|
|
if (strcmp(*argv, "any") == 0)
|
|
upspec = 0;
|
|
else {
|
|
struct protoent *pp;
|
|
pp = getprotobyname(*argv);
|
|
if (pp)
|
|
upspec = pp->p_proto;
|
|
else {
|
|
if (get_u8(&upspec, *argv, 0))
|
|
invarg("\"PROTO\" is invalid", *argv);
|
|
}
|
|
}
|
|
sel->proto = upspec;
|
|
|
|
filter.upspec_proto_mask = XFRM_FILTER_MASK_FULL;
|
|
|
|
} else if (strcmp(*argv, "sport") == 0) {
|
|
sportp = *argv;
|
|
|
|
NEXT_ARG();
|
|
|
|
if (get_u16(&sel->sport, *argv, 0))
|
|
invarg("\"PORT\" is invalid", *argv);
|
|
sel->sport = htons(sel->sport);
|
|
if (sel->sport)
|
|
sel->sport_mask = ~((__u16)0);
|
|
|
|
filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
|
|
|
|
} else if (strcmp(*argv, "dport") == 0) {
|
|
dportp = *argv;
|
|
|
|
NEXT_ARG();
|
|
|
|
if (get_u16(&sel->dport, *argv, 0))
|
|
invarg("\"PORT\" is invalid", *argv);
|
|
sel->dport = htons(sel->dport);
|
|
if (sel->dport)
|
|
sel->dport_mask = ~((__u16)0);
|
|
|
|
filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
|
|
|
|
} else if (strcmp(*argv, "type") == 0) {
|
|
typep = *argv;
|
|
|
|
NEXT_ARG();
|
|
|
|
if (get_u16(&sel->sport, *argv, 0) ||
|
|
(sel->sport & ~((__u16)0xff)))
|
|
invarg("\"type\" value is invalid", *argv);
|
|
sel->sport = htons(sel->sport);
|
|
sel->sport_mask = ~((__u16)0);
|
|
|
|
filter.upspec_sport_mask = XFRM_FILTER_MASK_FULL;
|
|
|
|
|
|
} else if (strcmp(*argv, "code") == 0) {
|
|
codep = *argv;
|
|
|
|
NEXT_ARG();
|
|
|
|
if (get_u16(&sel->dport, *argv, 0) ||
|
|
(sel->dport & ~((__u16)0xff)))
|
|
invarg("\"code\" value is invalid", *argv);
|
|
sel->dport = htons(sel->dport);
|
|
sel->dport_mask = ~((__u16)0);
|
|
|
|
filter.upspec_dport_mask = XFRM_FILTER_MASK_FULL;
|
|
|
|
} else {
|
|
PREV_ARG(); /* back track */
|
|
break;
|
|
}
|
|
|
|
if (!NEXT_ARG_OK())
|
|
break;
|
|
NEXT_ARG();
|
|
}
|
|
if (argc == *argcp)
|
|
missarg("UPSPEC");
|
|
if (sportp || dportp) {
|
|
switch (sel->proto) {
|
|
case IPPROTO_TCP:
|
|
case IPPROTO_UDP:
|
|
case IPPROTO_SCTP:
|
|
case IPPROTO_DCCP:
|
|
break;
|
|
default:
|
|
fprintf(stderr, "\"sport\" and \"dport\" are invalid with proto=%s\n", strxf_proto(sel->proto));
|
|
exit(1);
|
|
}
|
|
}
|
|
if (typep || codep) {
|
|
switch (sel->proto) {
|
|
case IPPROTO_ICMP:
|
|
case IPPROTO_ICMPV6:
|
|
case IPPROTO_MH:
|
|
break;
|
|
default:
|
|
fprintf(stderr, "\"type\" and \"code\" are invalid with proto=%s\n", strxf_proto(sel->proto));
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
*argcp = argc;
|
|
*argvp = argv;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp)
|
|
{
|
|
int argc = *argcp;
|
|
char **argv = *argvp;
|
|
inet_prefix dst;
|
|
inet_prefix src;
|
|
char *upspecp = NULL;
|
|
|
|
memset(&dst, 0, sizeof(dst));
|
|
memset(&src, 0, sizeof(src));
|
|
|
|
while (1) {
|
|
if (strcmp(*argv, "src") == 0) {
|
|
NEXT_ARG();
|
|
|
|
get_prefix(&src, *argv, preferred_family);
|
|
if (src.family == AF_UNSPEC)
|
|
invarg("\"src\" address family is AF_UNSPEC", *argv);
|
|
sel->family = src.family;
|
|
|
|
memcpy(&sel->saddr, &src.data, sizeof(sel->saddr));
|
|
sel->prefixlen_s = src.bitlen;
|
|
|
|
filter.sel_src_mask = src.bitlen;
|
|
|
|
} else if (strcmp(*argv, "dst") == 0) {
|
|
NEXT_ARG();
|
|
|
|
get_prefix(&dst, *argv, preferred_family);
|
|
if (dst.family == AF_UNSPEC)
|
|
invarg("\"dst\" address family is AF_UNSPEC", *argv);
|
|
sel->family = dst.family;
|
|
|
|
memcpy(&sel->daddr, &dst.data, sizeof(sel->daddr));
|
|
sel->prefixlen_d = dst.bitlen;
|
|
|
|
filter.sel_dst_mask = dst.bitlen;
|
|
|
|
} else if (strcmp(*argv, "dev") == 0) {
|
|
int ifindex;
|
|
|
|
NEXT_ARG();
|
|
|
|
if (strcmp(*argv, "none") == 0)
|
|
ifindex = 0;
|
|
else {
|
|
ifindex = ll_name_to_index(*argv);
|
|
if (ifindex <= 0)
|
|
invarg("\"DEV\" is invalid", *argv);
|
|
}
|
|
sel->ifindex = ifindex;
|
|
|
|
filter.sel_dev_mask = XFRM_FILTER_MASK_FULL;
|
|
|
|
} else {
|
|
if (upspecp) {
|
|
PREV_ARG(); /* back track */
|
|
break;
|
|
} else {
|
|
upspecp = *argv;
|
|
xfrm_selector_upspec_parse(sel, &argc, &argv);
|
|
}
|
|
}
|
|
|
|
if (!NEXT_ARG_OK())
|
|
break;
|
|
|
|
NEXT_ARG();
|
|
}
|
|
|
|
if (src.family && dst.family && (src.family != dst.family))
|
|
invarg("the same address family is required between \"src\" and \"dst\"", *argv);
|
|
|
|
if (argc == *argcp)
|
|
missarg("SELECTOR");
|
|
|
|
*argcp = argc;
|
|
*argvp = argv;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft,
|
|
int *argcp, char ***argvp)
|
|
{
|
|
int argc = *argcp;
|
|
char **argv = *argvp;
|
|
int ret;
|
|
|
|
if (strcmp(*argv, "time-soft") == 0) {
|
|
NEXT_ARG();
|
|
ret = get_u64(&lft->soft_add_expires_seconds, *argv, 0);
|
|
if (ret)
|
|
invarg("\"time-soft\" value is invalid", *argv);
|
|
} else if (strcmp(*argv, "time-hard") == 0) {
|
|
NEXT_ARG();
|
|
ret = get_u64(&lft->hard_add_expires_seconds, *argv, 0);
|
|
if (ret)
|
|
invarg("\"time-hard\" value is invalid", *argv);
|
|
} else if (strcmp(*argv, "time-use-soft") == 0) {
|
|
NEXT_ARG();
|
|
ret = get_u64(&lft->soft_use_expires_seconds, *argv, 0);
|
|
if (ret)
|
|
invarg("\"time-use-soft\" value is invalid", *argv);
|
|
} else if (strcmp(*argv, "time-use-hard") == 0) {
|
|
NEXT_ARG();
|
|
ret = get_u64(&lft->hard_use_expires_seconds, *argv, 0);
|
|
if (ret)
|
|
invarg("\"time-use-hard\" value is invalid", *argv);
|
|
} else if (strcmp(*argv, "byte-soft") == 0) {
|
|
NEXT_ARG();
|
|
ret = get_u64(&lft->soft_byte_limit, *argv, 0);
|
|
if (ret)
|
|
invarg("\"byte-soft\" value is invalid", *argv);
|
|
} else if (strcmp(*argv, "byte-hard") == 0) {
|
|
NEXT_ARG();
|
|
ret = get_u64(&lft->hard_byte_limit, *argv, 0);
|
|
if (ret)
|
|
invarg("\"byte-hard\" value is invalid", *argv);
|
|
} else if (strcmp(*argv, "packet-soft") == 0) {
|
|
NEXT_ARG();
|
|
ret = get_u64(&lft->soft_packet_limit, *argv, 0);
|
|
if (ret)
|
|
invarg("\"packet-soft\" value is invalid", *argv);
|
|
} else if (strcmp(*argv, "packet-hard") == 0) {
|
|
NEXT_ARG();
|
|
ret = get_u64(&lft->hard_packet_limit, *argv, 0);
|
|
if (ret)
|
|
invarg("\"packet-hard\" value is invalid", *argv);
|
|
} else
|
|
invarg("\"LIMIT\" is invalid", *argv);
|
|
|
|
*argcp = argc;
|
|
*argvp = argv;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int do_xfrm(int argc, char **argv)
|
|
{
|
|
memset(&filter, 0, sizeof(filter));
|
|
|
|
if (argc < 1)
|
|
usage();
|
|
|
|
if (matches(*argv, "state") == 0 ||
|
|
matches(*argv, "sa") == 0)
|
|
return do_xfrm_state(argc-1, argv+1);
|
|
else if (matches(*argv, "policy") == 0)
|
|
return do_xfrm_policy(argc-1, argv+1);
|
|
else if (matches(*argv, "monitor") == 0)
|
|
return do_xfrm_monitor(argc-1, argv+1);
|
|
else if (matches(*argv, "help") == 0) {
|
|
usage();
|
|
fprintf(stderr, "xfrm Object \"%s\" is unknown.\n", *argv);
|
|
exit(-1);
|
|
}
|
|
usage();
|
|
}
|