4 * Copyright (C)2005 USAGI/WIDE Project
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 * based on ipmonitor.c
25 * Masahide NAKAMURA @USAGI
31 #include <linux/xfrm.h>
34 #include "ip_common.h"
36 static void usage(void) __attribute__((noreturn));
38 static void usage(void)
40 fprintf(stderr, "Usage: ip xfrm monitor [ all | LISTofOBJECTS ]\n");
44 static int xfrm_acquire_print(const struct sockaddr_nl *who,
45 struct nlmsghdr *n, void *arg)
47 FILE *fp = (FILE*)arg;
48 struct xfrm_user_acquire *xacq = NLMSG_DATA(n);
49 int len = n->nlmsg_len;
50 struct rtattr * tb[XFRMA_MAX+1];
53 if (n->nlmsg_type != XFRM_MSG_ACQUIRE) {
54 fprintf(stderr, "Not an acquire: %08x %08x %08x\n",
55 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
59 len -= NLMSG_LENGTH(sizeof(*xacq));
61 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
65 parse_rtattr(tb, XFRMA_MAX, XFRMACQ_RTA(xacq), len);
67 family = xacq->sel.family;
68 if (family == AF_UNSPEC)
69 family = xacq->policy.sel.family;
70 if (family == AF_UNSPEC)
71 family = preferred_family;
73 fprintf(fp, "acquire ");
75 fprintf(fp, "proto %s ", strxf_xfrmproto(xacq->id.proto));
76 if (show_stats > 0 || xacq->id.spi) {
77 __u32 spi = ntohl(xacq->id.spi);
78 fprintf(fp, "spi 0x%08x", spi);
80 fprintf(fp, "(%u)", spi);
83 fprintf(fp, "%s", _SL_);
85 xfrm_selector_print(&xacq->sel, family, fp, " sel ");
87 xfrm_policy_info_print(&xacq->policy, tb, fp, " ", " policy ");
90 fprintf(fp, " seq 0x%08u ", xacq->seq);
92 fprintf(fp, "%s-mask %s ",
93 strxf_algotype(XFRMA_ALG_CRYPT),
94 strxf_mask32(xacq->ealgos));
95 fprintf(fp, "%s-mask %s ",
96 strxf_algotype(XFRMA_ALG_AUTH),
97 strxf_mask32(xacq->aalgos));
98 fprintf(fp, "%s-mask %s",
99 strxf_algotype(XFRMA_ALG_COMP),
100 strxf_mask32(xacq->calgos));
102 fprintf(fp, "%s", _SL_);
111 static int xfrm_accept_msg(const struct sockaddr_nl *who,
112 struct nlmsghdr *n, void *arg)
114 FILE *fp = (FILE*)arg;
119 if (n->nlmsg_type == XFRM_MSG_NEWSA ||
120 n->nlmsg_type == XFRM_MSG_DELSA ||
121 n->nlmsg_type == XFRM_MSG_UPDSA ||
122 n->nlmsg_type == XFRM_MSG_EXPIRE) {
123 xfrm_state_print(who, n, arg);
126 if (n->nlmsg_type == XFRM_MSG_NEWPOLICY ||
127 n->nlmsg_type == XFRM_MSG_DELPOLICY ||
128 n->nlmsg_type == XFRM_MSG_UPDPOLICY ||
129 n->nlmsg_type == XFRM_MSG_POLEXPIRE) {
130 xfrm_policy_print(who, n, arg);
134 if (n->nlmsg_type == XFRM_MSG_ACQUIRE) {
135 xfrm_acquire_print(who, n, arg);
138 if (n->nlmsg_type == XFRM_MSG_FLUSHSA) {
139 /* XXX: Todo: show proto in xfrm_usersa_flush */
140 fprintf(fp, "Flushed state\n");
143 if (n->nlmsg_type == XFRM_MSG_FLUSHPOLICY) {
144 fprintf(fp, "Flushed policy\n");
147 if (n->nlmsg_type != NLMSG_ERROR && n->nlmsg_type != NLMSG_NOOP &&
148 n->nlmsg_type != NLMSG_DONE) {
149 fprintf(fp, "Unknown message: %08d 0x%08x 0x%08x\n",
150 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
155 int do_xfrm_monitor(int argc, char **argv)
157 struct rtnl_handle rth;
159 unsigned groups = ~((unsigned)0); /* XXX */
166 if (matches(*argv, "file") == 0) {
169 } else if (matches(*argv, "acquire") == 0) {
172 } else if (matches(*argv, "expire") == 0) {
175 } else if (matches(*argv, "SA") == 0) {
178 } else if (matches(*argv, "policy") == 0) {
181 } else if (matches(*argv, "help") == 0) {
184 fprintf(stderr, "Argument \"%s\" is unknown, try \"ip xfrm monitor help\".\n", *argv);
191 groups |= XFRMGRP_ACQUIRE;
193 groups |= XFRMGRP_EXPIRE;
195 groups |= XFRMGRP_SA;
197 groups |= XFRMGRP_POLICY;
201 fp = fopen(file, "r");
203 perror("Cannot fopen");
206 return rtnl_from_file(fp, xfrm_accept_msg, (void*)stdout);
211 if (rtnl_open_byproto(&rth, groups, NETLINK_XFRM) < 0)
214 if (rtnl_listen(&rth, xfrm_accept_msg, (void*)stdout) < 0)