--- /dev/null
+/* $USAGI: $ */
+
+/*
+ * Copyright (C)2004 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+/*
+ * based on iproute.c
+ */
+/*
+ * Authors:
+ * Masahide NAKAMURA @USAGI
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netdb.h>
+#include <linux/netlink.h>
+#include <linux/xfrm.h>
+#include "utils.h"
+#include "xfrm.h"
+#include "ip_common.h"
+
+//#define NLMSG_FLUSH_BUF_SIZE (4096-512)
+#define NLMSG_FLUSH_BUF_SIZE 8192
+
+/*
+ * Receiving buffer defines:
+ * nlmsg
+ * data = struct xfrm_userpolicy_info
+ * rtattr
+ * data = struct xfrm_user_tmpl[]
+ */
+#define NLMSG_BUF_SIZE 4096
+#define RTA_BUF_SIZE 2048
+#define XFRM_TMPLS_BUF_SIZE 1024
+
+static void usage(void) __attribute__((noreturn));
+
+static void usage(void)
+{
+ fprintf(stderr, "Usage: ip xfrm policy { add | update } dir DIR SELECTOR [ index INDEX ] \n");
+ fprintf(stderr, " [ action ACTION ] [ priority PRIORITY ] [ LIMIT-LIST ] [ TMPL-LIST ]\n");
+ fprintf(stderr, "Usage: ip xfrm policy { delete | get } dir DIR [ SELECTOR | index INDEX ]\n");
+ fprintf(stderr, "Usage: ip xfrm policy { flush | list } [ dir DIR ] [ SELECTOR ]\n");
+ fprintf(stderr, " [ index INDEX ] [ action ACTION ] [ priority PRIORITY ]\n");
+ fprintf(stderr, "DIR := [ in | out | fwd ]\n");
+
+ fprintf(stderr, "SELECTOR := src ADDR[/PLEN] dst ADDR[/PLEN] [ UPSPEC ] [ dev DEV ]\n");
+
+ fprintf(stderr, "UPSPEC := proto PROTO [ [ sport PORT ] [ dport PORT ] |\n");
+ fprintf(stderr, " [ type NUMBER ] [ code NUMBER ] ]\n");
+
+ //fprintf(stderr, "DEV - device name(default=none)\n");
+
+ fprintf(stderr, "ACTION := [ allow | block ](default=allow)\n");
+
+ //fprintf(stderr, "PRIORITY - priority value(default=0)\n");
+
+ fprintf(stderr, "LIMIT-LIST := [ LIMIT-LIST ] | [ limit LIMIT ]\n");
+ fprintf(stderr, "LIMIT := [ [time-soft|time-hard|time-use-soft|time-use-hard] SECONDS ] |\n");
+ fprintf(stderr, " [ [byte-soft|byte-hard] SIZE ] | [ [packet-soft|packet-hard] NUMBER ]\n");
+
+ fprintf(stderr, "TMPL-LIST := [ TMPL-LIST ] | [ tmpl TMPL ]\n");
+ fprintf(stderr, "TMPL := ID [ mode MODE ] [ reqid REQID ] [ level LEVEL ]\n");
+ fprintf(stderr, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM_PROTO ] [ spi SPI ]\n");
+
+ //fprintf(stderr, "XFRM_PROTO := [ esp | ah | comp ]\n");
+ fprintf(stderr, "XFRM_PROTO := [ ");
+ fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ESP));
+ fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_AH));
+ fprintf(stderr, "%s", strxf_xfrmproto(IPPROTO_COMP));
+ fprintf(stderr, " ]\n");
+
+ fprintf(stderr, "MODE := [ transport | tunnel ](default=transport)\n");
+ //fprintf(stderr, "REQID - number(default=0)\n");
+ fprintf(stderr, "LEVEL := [ required | use ](default=required)\n");
+
+ exit(-1);
+}
+
+static int xfrm_policy_dir_parse(__u8 *dir, int *argcp, char ***argvp)
+{
+ int argc = *argcp;
+ char **argv = *argvp;
+
+ if (strcmp(*argv, "in") == 0)
+ *dir = XFRM_POLICY_IN;
+ else if (strcmp(*argv, "out") == 0)
+ *dir = XFRM_POLICY_OUT;
+ else if (strcmp(*argv, "fwd") == 0)
+ *dir = XFRM_POLICY_FWD;
+ else
+ invarg("\"DIR\" is invalid", *argv);
+
+ *argcp = argc;
+ *argvp = argv;
+
+ return 0;
+}
+
+static int xfrm_tmpl_parse(struct xfrm_user_tmpl *tmpl,
+ int *argcp, char ***argvp)
+{
+ int argc = *argcp;
+ char **argv = *argvp;
+ char *idp = NULL;
+
+ while (1) {
+ if (strcmp(*argv, "mode") == 0) {
+ NEXT_ARG();
+ xfrm_mode_parse(&tmpl->mode, &argc, &argv);
+ } else if (strcmp(*argv, "reqid") == 0) {
+ NEXT_ARG();
+ xfrm_reqid_parse(&tmpl->reqid, &argc, &argv);
+ } else if (strcmp(*argv, "level") == 0) {
+ NEXT_ARG();
+
+ if (strcmp(*argv, "required") == 0)
+ tmpl->optional = 0;
+ else if (strcmp(*argv, "use") == 0)
+ tmpl->optional = 1;
+ else
+ invarg("\"LEVEL\" is invalid\n", *argv);
+
+ } else {
+ if (idp) {
+ PREV_ARG(); /* back track */
+ break;
+ }
+ idp = *argv;
+ xfrm_id_parse(&tmpl->saddr, &tmpl->id, &tmpl->family,
+ 0, &argc, &argv);
+ if (preferred_family == AF_UNSPEC)
+ preferred_family = tmpl->family;
+ }
+
+ if (!NEXT_ARG_OK())
+ break;
+
+ NEXT_ARG();
+ }
+ if (argc == *argcp)
+ missarg("TMPL");
+
+ *argcp = argc;
+ *argvp = argv;
+
+ return 0;
+}
+
+static int xfrm_policy_modify(int cmd, unsigned flags, int argc, char **argv)
+{
+ struct rtnl_handle rth;
+ struct {
+ struct nlmsghdr n;
+ struct xfrm_userpolicy_info xpinfo;
+ char buf[RTA_BUF_SIZE];
+ } req;
+ char *dirp = NULL;
+ char *selp = NULL;
+ char tmpls_buf[XFRM_TMPLS_BUF_SIZE];
+ int tmpls_len = 0;
+
+ memset(&req, 0, sizeof(req));
+ memset(&tmpls_buf, 0, sizeof(tmpls_buf));
+
+ req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xpinfo));
+ req.n.nlmsg_flags = NLM_F_REQUEST|flags;
+ req.n.nlmsg_type = cmd;
+ req.xpinfo.sel.family = preferred_family;
+
+ req.xpinfo.lft.soft_byte_limit = XFRM_INF;
+ req.xpinfo.lft.hard_byte_limit = XFRM_INF;
+ req.xpinfo.lft.soft_packet_limit = XFRM_INF;
+ req.xpinfo.lft.hard_packet_limit = XFRM_INF;
+
+ while (argc > 0) {
+ if (strcmp(*argv, "dir") == 0) {
+ if (dirp)
+ duparg("dir", *argv);
+ dirp = *argv;
+
+ NEXT_ARG();
+ xfrm_policy_dir_parse(&req.xpinfo.dir, &argc, &argv);
+
+ filter.dir_mask = XFRM_FILTER_MASK_FULL;
+
+ } else if (strcmp(*argv, "index") == 0) {
+ NEXT_ARG();
+ if (get_u32(&req.xpinfo.index, *argv, 0))
+ invarg("\"INDEX\" is invalid", *argv);
+
+ filter.index_mask = XFRM_FILTER_MASK_FULL;
+
+ } else if (strcmp(*argv, "action") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "allow") == 0)
+ req.xpinfo.action = XFRM_POLICY_ALLOW;
+ else if (strcmp(*argv, "block") == 0)
+ req.xpinfo.action = XFRM_POLICY_BLOCK;
+ else
+ invarg("\"action\" value is invalid\n", *argv);
+
+ filter.action_mask = XFRM_FILTER_MASK_FULL;
+
+ } else if (strcmp(*argv, "priority") == 0) {
+ NEXT_ARG();
+ if (get_u32(&req.xpinfo.priority, *argv, 0))
+ invarg("\"PRIORITY\" is invalid", *argv);
+
+ filter.priority_mask = XFRM_FILTER_MASK_FULL;
+
+ } else if (strcmp(*argv, "limit") == 0) {
+ NEXT_ARG();
+ xfrm_lifetime_cfg_parse(&req.xpinfo.lft, &argc, &argv);
+ } else if (strcmp(*argv, "tmpl") == 0) {
+ struct xfrm_user_tmpl *tmpl;
+
+ if (tmpls_len + sizeof(*tmpl) > sizeof(tmpls_buf)) {
+ fprintf(stderr, "Too many tmpls: buffer overflow\n");
+ exit(1);
+ }
+ tmpl = (struct xfrm_user_tmpl *)((char *)tmpls_buf + tmpls_len);
+
+ tmpl->family = preferred_family;
+ tmpl->aalgos = (~(__u32)0);
+ tmpl->ealgos = (~(__u32)0);
+ tmpl->calgos = (~(__u32)0);
+
+ NEXT_ARG();
+ xfrm_tmpl_parse(tmpl, &argc, &argv);
+
+ tmpls_len += sizeof(*tmpl);
+ } else {
+ if (selp)
+ duparg("unknown", *argv);
+ selp = *argv;
+
+ xfrm_selector_parse(&req.xpinfo.sel, &argc, &argv);
+ if (preferred_family == AF_UNSPEC)
+ preferred_family = req.xpinfo.sel.family;
+ }
+
+ argc--; argv++;
+ }
+
+ if (!dirp) {
+ fprintf(stderr, "Not enough information: \"DIR\" is required.\n");
+ exit(1);
+ }
+
+ if (tmpls_len > 0) {
+ addattr_l(&req.n, sizeof(req), XFRMA_TMPL,
+ (void *)tmpls_buf, tmpls_len);
+ }
+
+ if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
+ exit(1);
+
+ if (req.xpinfo.sel.family == AF_UNSPEC)
+ req.xpinfo.sel.family = AF_INET;
+
+ if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
+ exit(2);
+
+ rtnl_close(&rth);
+
+ return 0;
+}
+
+static int xfrm_policy_filter_match(struct xfrm_userpolicy_info *xpinfo)
+{
+ if (!filter.use)
+ return 1;
+
+ if ((xpinfo->dir^filter.xpinfo.dir)&filter.dir_mask)
+ return 0;
+
+ if (filter.sel_src_mask) {
+ if (xfrm_addr_match(&xpinfo->sel.saddr, &filter.xpinfo.sel.saddr,
+ filter.sel_src_mask))
+ return 0;
+ }
+
+ if (filter.sel_dst_mask) {
+ if (xfrm_addr_match(&xpinfo->sel.daddr, &filter.xpinfo.sel.daddr,
+ filter.sel_dst_mask))
+ return 0;
+ }
+
+ if ((xpinfo->sel.ifindex^filter.xpinfo.sel.ifindex)&filter.sel_dev_mask)
+ return 0;
+
+ if ((xpinfo->sel.proto^filter.xpinfo.sel.proto)&filter.upspec_proto_mask)
+ return 0;
+
+ if (filter.upspec_sport_mask) {
+ if ((xpinfo->sel.sport^filter.xpinfo.sel.sport)&filter.upspec_sport_mask)
+ return 0;
+ }
+
+ if (filter.upspec_dport_mask) {
+ if ((xpinfo->sel.dport^filter.xpinfo.sel.dport)&filter.upspec_dport_mask)
+ return 0;
+ }
+
+ if ((xpinfo->index^filter.xpinfo.index)&filter.index_mask)
+ return 0;
+
+ if ((xpinfo->action^filter.xpinfo.action)&filter.action_mask)
+ return 0;
+
+ if ((xpinfo->priority^filter.xpinfo.priority)&filter.priority_mask)
+ return 0;
+
+ return 1;
+}
+
+static int xfrm_policy_print(const struct sockaddr_nl *who,
+ struct nlmsghdr *n, void *arg)
+{
+ FILE *fp = (FILE*)arg;
+ struct xfrm_userpolicy_info *xpinfo = NLMSG_DATA(n);
+ int len = n->nlmsg_len;
+ struct rtattr * tb[XFRMA_MAX+1];
+
+ if (n->nlmsg_type != XFRM_MSG_NEWPOLICY &&
+ n->nlmsg_type != XFRM_MSG_DELPOLICY) {
+ fprintf(stderr, "Not a policy: %08x %08x %08x\n",
+ n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
+ return 0;
+ }
+
+ len -= NLMSG_LENGTH(sizeof(*xpinfo));
+ if (len < 0) {
+ fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
+ return -1;
+ }
+
+ if (!xfrm_policy_filter_match(xpinfo))
+ return 0;
+
+ parse_rtattr(tb, XFRMA_MAX, XFRMP_RTA(xpinfo), len);
+
+ if (n->nlmsg_type == XFRM_MSG_DELPOLICY)
+ fprintf(fp, "Deleted ");
+
+ xfrm_selector_print(&xpinfo->sel, preferred_family, fp, NULL);
+
+ fprintf(fp, "\t");
+ 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 (show_stats > 0) {
+ fprintf(fp, "share %s ", strxf_share(xpinfo->share));
+ fprintf(fp, "flag 0x%s", strxf_mask8(xpinfo->flags));
+ }
+ fprintf(fp, "%s", _SL_);
+
+ if (show_stats > 0)
+ xfrm_lifetime_print(&xpinfo->lft, &xpinfo->curlft, fp, "\t");
+
+ xfrm_xfrma_print(tb, xpinfo->sel.family, fp, "\t");
+
+ if (oneline)
+ fprintf(fp, "\n");
+
+ return 0;
+}
+
+static int xfrm_policy_get_or_delete(int argc, char **argv, int delete,
+ void *res_nlbuf)
+{
+ struct rtnl_handle rth;
+ struct {
+ struct nlmsghdr n;
+ struct xfrm_userpolicy_id xpid;
+ } req;
+ char *dirp = NULL;
+ char *selp = NULL;
+ char *indexp = NULL;
+
+ memset(&req, 0, sizeof(req));
+
+ req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xpid));
+ req.n.nlmsg_flags = NLM_F_REQUEST;
+ req.n.nlmsg_type = delete ? XFRM_MSG_DELPOLICY : XFRM_MSG_GETPOLICY;
+
+ while (argc > 0) {
+ if (strcmp(*argv, "dir") == 0) {
+ if (dirp)
+ duparg("dir", *argv);
+ dirp = *argv;
+
+ NEXT_ARG();
+ xfrm_policy_dir_parse(&req.xpid.dir, &argc, &argv);
+
+ } else if (strcmp(*argv, "index") == 0) {
+ if (indexp)
+ duparg("index", *argv);
+ indexp = *argv;
+
+ NEXT_ARG();
+ if (get_u32(&req.xpid.index, *argv, 0))
+ invarg("\"INDEX\" is invalid", *argv);
+
+ } else {
+ if (selp)
+ invarg("unknown", *argv);
+ selp = *argv;
+
+ xfrm_selector_parse(&req.xpid.sel, &argc, &argv);
+ if (preferred_family == AF_UNSPEC)
+ preferred_family = req.xpid.sel.family;
+
+ }
+
+ argc--; argv++;
+ }
+
+ if (!dirp) {
+ fprintf(stderr, "Not enough information: \"DIR\" is required.\n");
+ exit(1);
+ }
+ if (!selp && !indexp) {
+ fprintf(stderr, "Not enough information: either \"SELECTOR\" or \"INDEX\" is required.\n");
+ exit(1);
+ }
+ if (selp && indexp)
+ duparg2("SELECTOR", "INDEX");
+
+ if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
+ exit(1);
+
+ if (req.xpid.sel.family == AF_UNSPEC)
+ req.xpid.sel.family = AF_INET;
+
+ if (rtnl_talk(&rth, &req.n, 0, 0, res_nlbuf, NULL, NULL) < 0)
+ exit(2);
+
+ rtnl_close(&rth);
+
+ return 0;
+}
+
+static int xfrm_policy_delete(int argc, char **argv)
+{
+ return xfrm_policy_get_or_delete(argc, argv, 1, NULL);
+}
+
+static int xfrm_policy_get(int argc, char **argv)
+{
+ char buf[NLMSG_BUF_SIZE];
+ struct nlmsghdr *n = (struct nlmsghdr *)buf;
+
+ memset(buf, 0, sizeof(buf));
+
+ xfrm_policy_get_or_delete(argc, argv, 0, n);
+
+ if (xfrm_policy_print(NULL, n, (void*)stdout) < 0) {
+ fprintf(stderr, "An error :-)\n");
+ exit(1);
+ }
+
+ return 0;
+}
+
+/*
+ * With an existing policy of nlmsg, make new nlmsg for deleting the policy
+ * and store it to buffer.
+ */
+static int xfrm_policy_keep(const struct sockaddr_nl *who,
+ struct nlmsghdr *n,
+ void *arg)
+{
+ struct xfrm_buffer *xb = (struct xfrm_buffer *)arg;
+ struct rtnl_handle *rth = xb->rth;
+ struct xfrm_userpolicy_info *xpinfo = NLMSG_DATA(n);
+ int len = n->nlmsg_len;
+ struct nlmsghdr *new_n;
+ struct xfrm_userpolicy_id *xpid;
+
+ if (n->nlmsg_type != XFRM_MSG_NEWPOLICY) {
+ fprintf(stderr, "Not a policy: %08x %08x %08x\n",
+ n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
+ return 0;
+ }
+
+ len -= NLMSG_LENGTH(sizeof(*xpinfo));
+ if (len < 0) {
+ fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
+ return -1;
+ }
+
+ if (!xfrm_policy_filter_match(xpinfo))
+ return 0;
+
+ if (xb->offset > xb->size) {
+ fprintf(stderr, "Flush buffer overflow\n");
+ return -1;
+ }
+
+ new_n = (struct nlmsghdr *)(xb->buf + xb->offset);
+ new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xpid));
+ new_n->nlmsg_flags = NLM_F_REQUEST;
+ new_n->nlmsg_type = XFRM_MSG_DELPOLICY;
+ new_n->nlmsg_seq = ++rth->seq;
+
+ xpid = NLMSG_DATA(new_n);
+ memcpy(&xpid->sel, &xpinfo->sel, sizeof(xpid->sel));
+ xpid->dir = xpinfo->dir;
+ xpid->index = xpinfo->index;
+
+ xb->offset += new_n->nlmsg_len;
+ xb->nlmsg_count ++;
+
+ return 0;
+}
+
+static int xfrm_policy_list_or_flush(int argc, char **argv, int flush)
+{
+ char *selp = NULL;
+ struct rtnl_handle rth;
+
+ if (argc > 0)
+ filter.use = 1;
+ filter.xpinfo.sel.family = preferred_family;
+
+ while (argc > 0) {
+ if (strcmp(*argv, "dir") == 0) {
+ NEXT_ARG();
+ xfrm_policy_dir_parse(&filter.xpinfo.dir, &argc, &argv);
+
+ filter.dir_mask = XFRM_FILTER_MASK_FULL;
+
+ } else if (strcmp(*argv, "index") == 0) {
+ NEXT_ARG();
+ if (get_u32(&filter.xpinfo.index, *argv, 0))
+ invarg("\"INDEX\" is invalid", *argv);
+
+ filter.index_mask = XFRM_FILTER_MASK_FULL;
+
+ } else if (strcmp(*argv, "action") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "allow") == 0)
+ filter.xpinfo.action = XFRM_POLICY_ALLOW;
+ else if (strcmp(*argv, "block") == 0)
+ filter.xpinfo.action = XFRM_POLICY_BLOCK;
+ else
+ invarg("\"ACTION\" is invalid\n", *argv);
+
+ filter.action_mask = XFRM_FILTER_MASK_FULL;
+
+ } else if (strcmp(*argv, "priority") == 0) {
+ NEXT_ARG();
+ if (get_u32(&filter.xpinfo.priority, *argv, 0))
+ invarg("\"PRIORITY\" is invalid", *argv);
+
+ filter.priority_mask = XFRM_FILTER_MASK_FULL;
+
+ } else {
+ if (selp)
+ invarg("unknown", *argv);
+ selp = *argv;
+
+ xfrm_selector_parse(&filter.xpinfo.sel, &argc, &argv);
+ if (preferred_family == AF_UNSPEC)
+ preferred_family = filter.xpinfo.sel.family;
+
+ }
+
+ argc--; argv++;
+ }
+
+ if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
+ exit(1);
+
+ if (flush) {
+ struct xfrm_buffer xb;
+ char buf[NLMSG_FLUSH_BUF_SIZE];
+ int i;
+
+ xb.buf = buf;
+ xb.size = sizeof(buf);
+ xb.rth = &rth;
+
+ for (i = 0; ; i++) {
+ xb.offset = 0;
+ xb.nlmsg_count = 0;
+
+ if (show_stats > 1)
+ fprintf(stderr, "Flush round = %d\n", i);
+
+ if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETPOLICY) < 0) {
+ perror("Cannot send dump request");
+ exit(1);
+ }
+
+ if (rtnl_dump_filter(&rth, xfrm_policy_keep, &xb, NULL, NULL) < 0) {
+ fprintf(stderr, "Flush terminated\n");
+ exit(1);
+ }
+ if (xb.nlmsg_count == 0) {
+ if (show_stats > 1)
+ fprintf(stderr, "Flush completed\n");
+ break;
+ }
+
+ if (rtnl_send(&rth, xb.buf, xb.offset) < 0) {
+ perror("Failed to send flush request\n");
+ exit(1);
+ }
+ if (show_stats > 1)
+ fprintf(stderr, "Flushed nlmsg count = %d\n", xb.nlmsg_count);
+
+ xb.offset = 0;
+ xb.nlmsg_count = 0;
+ }
+ } else {
+ if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETPOLICY) < 0) {
+ perror("Cannot send dump request");
+ exit(1);
+ }
+
+ if (rtnl_dump_filter(&rth, xfrm_policy_print, stdout, NULL, NULL) < 0) {
+ fprintf(stderr, "Dump terminated\n");
+ exit(1);
+ }
+ }
+
+ rtnl_close(&rth);
+
+ exit(0);
+}
+
+static int xfrm_policy_flush_all(void)
+{
+ struct rtnl_handle rth;
+ struct {
+ struct nlmsghdr n;
+ } req;
+
+ memset(&req, 0, sizeof(req));
+
+ req.n.nlmsg_len = NLMSG_LENGTH(0); /* nlmsg data is nothing */
+ req.n.nlmsg_flags = NLM_F_REQUEST;
+ req.n.nlmsg_type = XFRM_MSG_FLUSHPOLICY;
+
+ if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
+ exit(1);
+
+ if (show_stats > 1)
+ fprintf(stderr, "Flush all\n");
+
+ if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
+ exit(2);
+
+ rtnl_close(&rth);
+
+ return 0;
+}
+
+int do_xfrm_policy(int argc, char **argv)
+{
+ if (argc < 1)
+ return xfrm_policy_list_or_flush(0, NULL, 0);
+
+ if (matches(*argv, "add") == 0)
+ return xfrm_policy_modify(XFRM_MSG_NEWPOLICY, 0,
+ argc-1, argv+1);
+ if (matches(*argv, "update") == 0)
+ return xfrm_policy_modify(XFRM_MSG_UPDPOLICY, 0,
+ argc-1, argv+1);
+ if (matches(*argv, "delete") == 0 || matches(*argv, "del") == 0)
+ return xfrm_policy_delete(argc-1, argv+1);
+ if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
+ || matches(*argv, "lst") == 0)
+ return xfrm_policy_list_or_flush(argc-1, argv+1, 0);
+ if (matches(*argv, "get") == 0)
+ return xfrm_policy_get(argc-1, argv+1);
+ if (matches(*argv, "flush") == 0) {
+ if (argc-1 < 1)
+ return xfrm_policy_flush_all();
+ else
+ return xfrm_policy_list_or_flush(argc-1, argv+1, 1);
+ }
+ if (matches(*argv, "help") == 0)
+ usage();
+ fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm policy help\".\n", *argv);
+ exit(-1);
+}
git://git.onelab.eu / iproute2.git / blobdiff