+++ /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/xfrm.h>
-#include "utils.h"
-#include "xfrm.h"
-#include "ip_common.h"
-
-//#define NLMSG_DELETEALL_BUF_SIZE (4096-512)
-#define NLMSG_DELETEALL_BUF_SIZE 8192
-
-/*
- * Receiving buffer defines:
- * nlmsg
- * data = struct xfrm_usersa_info
- * rtattr
- * rtattr
- * ... (max count of rtattr is XFRM_MAX+1
- *
- * each rtattr data = struct xfrm_algo(dynamic size) or xfrm_address_t
- */
-#define NLMSG_BUF_SIZE 4096
-#define RTA_BUF_SIZE 2048
-#define XFRM_ALGO_KEY_BUF_SIZE 512
-
-static void usage(void) __attribute__((noreturn));
-
-static void usage(void)
-{
- fprintf(stderr, "Usage: ip xfrm state { add | update } ID [ ALGO-LIST ] [ mode MODE ]\n");
- fprintf(stderr, " [ reqid REQID ] [ seq SEQ ] [ replay-window SIZE ] [ flag FLAG-LIST ]\n");
- fprintf(stderr, " [ encap ENCAP ] [ sel SELECTOR ] [ LIMIT-LIST ]\n");
- fprintf(stderr, "Usage: ip xfrm state allocspi ID [ mode MODE ] [ reqid REQID ] [ seq SEQ ]\n");
- fprintf(stderr, " [ min SPI max SPI ]\n");
- fprintf(stderr, "Usage: ip xfrm state { delete | get } ID\n");
- fprintf(stderr, "Usage: ip xfrm state { deleteall | list } [ ID ] [ mode MODE ] [ reqid REQID ]\n");
- fprintf(stderr, " [ flag FLAG_LIST ]\n");
- fprintf(stderr, "Usage: ip xfrm state flush [ proto XFRM_PROTO ]\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, "SPI - security parameter index(default=0)\n");
-
- fprintf(stderr, "MODE := [ transport | tunnel ](default=transport)\n");
- //fprintf(stderr, "REQID - number(default=0)\n");
-
- fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
- fprintf(stderr, "FLAG := [ noecn | decap-dscp ]\n");
-
- fprintf(stderr, "ENCAP := ENCAP-TYPE SPORT DPORT OADDR\n");
- fprintf(stderr, "ENCAP-TYPE := espinudp | espinudp-nonike\n");
-
- fprintf(stderr, "ALGO-LIST := [ ALGO-LIST ] | [ ALGO ]\n");
- fprintf(stderr, "ALGO := ALGO_TYPE ALGO_NAME ALGO_KEY\n");
- fprintf(stderr, "ALGO_TYPE := [ ");
- fprintf(stderr, "%s | ", strxf_algotype(XFRMA_ALG_CRYPT));
- fprintf(stderr, "%s | ", strxf_algotype(XFRMA_ALG_AUTH));
- fprintf(stderr, "%s ", strxf_algotype(XFRMA_ALG_COMP));
- fprintf(stderr, "]\n");
-
- //fprintf(stderr, "ALGO_NAME - algorithm name\n");
- //fprintf(stderr, "ALGO_KEY - algorithm key\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, "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] COUNT ]\n");
- exit(-1);
-}
-
-static int xfrm_algo_parse(struct xfrm_algo *alg, enum xfrm_attr_type_t type,
- char *name, char *key, int max)
-{
- int len;
- int slen = strlen(key);
-
-#if 0
- /* XXX: verifying both name and key is required! */
- fprintf(stderr, "warning: ALGONAME/ALGOKEY will send to kernel promiscuously!(verifying them isn't implemented yet)\n");
-#endif
-
- strncpy(alg->alg_name, name, sizeof(alg->alg_name));
-
- if (slen > 2 && strncmp(key, "0x", 2) == 0) {
- /* split two chars "0x" from the top */
- char *p = key + 2;
- int plen = slen - 2;
- int i;
- int j;
-
- /* Converting hexadecimal numbered string into real key;
- * Convert each two chars into one char(value). If number
- * of the length is odd, add zero on the top for rounding.
- */
-
- /* calculate length of the converted values(real key) */
- len = (plen + 1) / 2;
- if (len > max)
- invarg("\"ALGOKEY\" makes buffer overflow\n", key);
-
- for (i = - (plen % 2), j = 0; j < len; i += 2, j++) {
- char vbuf[3];
- __u8 val;
-
- vbuf[0] = i >= 0 ? p[i] : '0';
- vbuf[1] = p[i + 1];
- vbuf[2] = '\0';
-
- if (get_u8(&val, vbuf, 16))
- invarg("\"ALGOKEY\" is invalid", key);
-
- alg->alg_key[j] = val;
- }
- } else {
- len = slen;
- if (len > 0) {
- if (len > max)
- invarg("\"ALGOKEY\" makes buffer overflow\n", key);
-
- strncpy(alg->alg_key, key, len);
- }
- }
-
- alg->alg_key_len = len * 8;
-
- return 0;
-}
-
-static int xfrm_seq_parse(__u32 *seq, int *argcp, char ***argvp)
-{
- int argc = *argcp;
- char **argv = *argvp;
-
- if (get_u32(seq, *argv, 0))
- invarg("\"SEQ\" is invalid", *argv);
-
- *seq = htonl(*seq);
-
- *argcp = argc;
- *argvp = argv;
-
- return 0;
-}
-
-static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp)
-{
- int argc = *argcp;
- char **argv = *argvp;
- int len = strlen(*argv);
-
- if (len > 2 && strncmp(*argv, "0x", 2) == 0) {
- __u8 val = 0;
-
- if (get_u8(&val, *argv, 16))
- invarg("\"FLAG\" is invalid", *argv);
- *flags = val;
- } else {
- while (1) {
- if (strcmp(*argv, "noecn") == 0)
- *flags |= XFRM_STATE_NOECN;
- else if (strcmp(*argv, "decap-dscp") == 0)
- *flags |= XFRM_STATE_DECAP_DSCP;
- else {
- PREV_ARG(); /* back track */
- break;
- }
-
- if (!NEXT_ARG_OK())
- break;
- NEXT_ARG();
- }
- }
-
- filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
-
- *argcp = argc;
- *argvp = argv;
-
- return 0;
-}
-
-static int xfrm_state_modify(int cmd, unsigned flags, int argc, char **argv)
-{
- struct rtnl_handle rth;
- struct {
- struct nlmsghdr n;
- struct xfrm_usersa_info xsinfo;
- char buf[RTA_BUF_SIZE];
- } req;
- char *idp = NULL;
- char *ealgop = NULL;
- char *aalgop = NULL;
- char *calgop = NULL;
-
- memset(&req, 0, sizeof(req));
-
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo));
- req.n.nlmsg_flags = NLM_F_REQUEST|flags;
- req.n.nlmsg_type = cmd;
- req.xsinfo.family = preferred_family;
-
- req.xsinfo.lft.soft_byte_limit = XFRM_INF;
- req.xsinfo.lft.hard_byte_limit = XFRM_INF;
- req.xsinfo.lft.soft_packet_limit = XFRM_INF;
- req.xsinfo.lft.hard_packet_limit = XFRM_INF;
-
- while (argc > 0) {
- if (strcmp(*argv, "mode") == 0) {
- NEXT_ARG();
- xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv);
- } else if (strcmp(*argv, "reqid") == 0) {
- NEXT_ARG();
- xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv);
- } else if (strcmp(*argv, "seq") == 0) {
- NEXT_ARG();
- xfrm_seq_parse(&req.xsinfo.seq, &argc, &argv);
- } else if (strcmp(*argv, "replay-window") == 0) {
- NEXT_ARG();
- if (get_u8(&req.xsinfo.replay_window, *argv, 0))
- invarg("\"replay-window\" value is invalid", *argv);
- } else if (strcmp(*argv, "flag") == 0) {
- NEXT_ARG();
- xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv);
- } else if (strcmp(*argv, "sel") == 0) {
- NEXT_ARG();
- xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv);
- } else if (strcmp(*argv, "limit") == 0) {
- NEXT_ARG();
- xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv);
- } else if (strcmp(*argv, "encap") == 0) {
- struct xfrm_encap_tmpl encap;
- inet_prefix oa;
- NEXT_ARG();
- xfrm_encap_type_parse(&encap.encap_type, &argc, &argv);
- NEXT_ARG();
- if (get_u16(&encap.encap_sport, *argv, 0))
- invarg("\"encap\" sport value is invalid", *argv);
- encap.encap_sport = htons(encap.encap_sport);
- NEXT_ARG();
- if (get_u16(&encap.encap_dport, *argv, 0))
- invarg("\"encap\" dport value is invalid", *argv);
- encap.encap_dport = htons(encap.encap_dport);
- NEXT_ARG();
- get_addr(&oa, *argv, AF_UNSPEC);
- memcpy(&encap.encap_oa, &oa.data, sizeof(encap.encap_oa));
- addattr_l(&req.n, sizeof(req.buf), XFRMA_ENCAP,
- (void *)&encap, sizeof(encap));
- } else {
- /* try to assume ALGO */
- int type = xfrm_algotype_getbyname(*argv);
- switch (type) {
- case XFRMA_ALG_CRYPT:
- case XFRMA_ALG_AUTH:
- case XFRMA_ALG_COMP:
- {
- /* ALGO */
- struct {
- struct xfrm_algo alg;
- char buf[XFRM_ALGO_KEY_BUF_SIZE];
- } alg;
- int len;
- char *name;
- char *key;
-
- switch (type) {
- case XFRMA_ALG_CRYPT:
- if (ealgop)
- duparg("ALGOTYPE", *argv);
- ealgop = *argv;
- break;
- case XFRMA_ALG_AUTH:
- if (aalgop)
- duparg("ALGOTYPE", *argv);
- aalgop = *argv;
- break;
- case XFRMA_ALG_COMP:
- if (calgop)
- duparg("ALGOTYPE", *argv);
- calgop = *argv;
- break;
- default:
- /* not reached */
- invarg("\"ALGOTYPE\" is invalid\n", *argv);
- }
-
- if (!NEXT_ARG_OK())
- missarg("ALGONAME");
- NEXT_ARG();
- name = *argv;
-
- if (!NEXT_ARG_OK())
- missarg("ALGOKEY");
- NEXT_ARG();
- key = *argv;
-
- memset(&alg, 0, sizeof(alg));
-
- xfrm_algo_parse((void *)&alg, type, name, key,
- sizeof(alg.buf));
- len = sizeof(struct xfrm_algo) + alg.alg.alg_key_len;
-
- addattr_l(&req.n, sizeof(req.buf), type,
- (void *)&alg, len);
- break;
- }
- default:
- /* try to assume ID */
- if (idp)
- invarg("unknown", *argv);
- idp = *argv;
-
- /* ID */
- xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id,
- &req.xsinfo.family, 0, &argc, &argv);
- if (preferred_family == AF_UNSPEC)
- preferred_family = req.xsinfo.family;
- }
- }
- argc--; argv++;
- }
-
- if (!idp) {
- fprintf(stderr, "Not enough information: \"ID\" is required\n");
- exit(1);
- }
-
- if (ealgop || aalgop || calgop) {
- if (req.xsinfo.id.proto != IPPROTO_ESP &&
- req.xsinfo.id.proto != IPPROTO_AH &&
- req.xsinfo.id.proto != IPPROTO_COMP) {
- fprintf(stderr, "\"ALGO\" is invalid with proto=%s\n", strxf_xfrmproto(req.xsinfo.id.proto));
- exit(1);
- }
- } else {
- if (req.xsinfo.id.proto == IPPROTO_ESP ||
- req.xsinfo.id.proto == IPPROTO_AH ||
- req.xsinfo.id.proto == IPPROTO_COMP) {
- fprintf(stderr, "\"ALGO\" is required with proto=%s\n", strxf_xfrmproto(req.xsinfo.id.proto));
- exit (1);
- }
- }
-
- if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
- exit(1);
-
- if (req.xsinfo.family == AF_UNSPEC)
- req.xsinfo.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_state_allocspi(int argc, char **argv)
-{
- struct rtnl_handle rth;
- struct {
- struct nlmsghdr n;
- struct xfrm_userspi_info xspi;
- char buf[RTA_BUF_SIZE];
- } req;
- char *idp = NULL;
- char *minp = NULL;
- char *maxp = NULL;
- char res_buf[NLMSG_BUF_SIZE];
- struct nlmsghdr *res_n = (struct nlmsghdr *)res_buf;
-
- memset(res_buf, 0, sizeof(res_buf));
-
- memset(&req, 0, sizeof(req));
-
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xspi));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- req.n.nlmsg_type = XFRM_MSG_ALLOCSPI;
- req.xspi.info.family = preferred_family;
-
-#if 0
- req.xsinfo.lft.soft_byte_limit = XFRM_INF;
- req.xsinfo.lft.hard_byte_limit = XFRM_INF;
- req.xsinfo.lft.soft_packet_limit = XFRM_INF;
- req.xsinfo.lft.hard_packet_limit = XFRM_INF;
-#endif
-
- while (argc > 0) {
- if (strcmp(*argv, "mode") == 0) {
- NEXT_ARG();
- xfrm_mode_parse(&req.xspi.info.mode, &argc, &argv);
- } else if (strcmp(*argv, "reqid") == 0) {
- NEXT_ARG();
- xfrm_reqid_parse(&req.xspi.info.reqid, &argc, &argv);
- } else if (strcmp(*argv, "seq") == 0) {
- NEXT_ARG();
- xfrm_seq_parse(&req.xspi.info.seq, &argc, &argv);
- } else if (strcmp(*argv, "min") == 0) {
- if (minp)
- duparg("min", *argv);
- minp = *argv;
-
- NEXT_ARG();
-
- if (get_u32(&req.xspi.min, *argv, 0))
- invarg("\"min\" value is invalid", *argv);
- } else if (strcmp(*argv, "max") == 0) {
- if (maxp)
- duparg("max", *argv);
- maxp = *argv;
-
- NEXT_ARG();
-
- if (get_u32(&req.xspi.max, *argv, 0))
- invarg("\"max\" value is invalid", *argv);
- } else {
- /* try to assume ID */
- if (idp)
- invarg("unknown", *argv);
- idp = *argv;
-
- /* ID */
- xfrm_id_parse(&req.xspi.info.saddr, &req.xspi.info.id,
- &req.xspi.info.family, 0, &argc, &argv);
- if (req.xspi.info.id.spi) {
- fprintf(stderr, "\"SPI\" must be zero\n");
- exit(1);
- }
- if (preferred_family == AF_UNSPEC)
- preferred_family = req.xspi.info.family;
- }
- argc--; argv++;
- }
-
- if (!idp) {
- fprintf(stderr, "Not enough information: \"ID\" is required\n");
- exit(1);
- }
-
- if (minp) {
- if (!maxp) {
- fprintf(stderr, "\"max\" is missing\n");
- exit(1);
- }
- if (req.xspi.min > req.xspi.max) {
- fprintf(stderr, "\"min\" valie is larger than \"max\" one\n");
- exit(1);
- }
- } else {
- if (maxp) {
- fprintf(stderr, "\"min\" is missing\n");
- exit(1);
- }
-
- /* XXX: Default value defined in PF_KEY;
- * See kernel's net/key/af_key.c(pfkey_getspi).
- */
- req.xspi.min = 0x100;
- req.xspi.max = 0x0fffffff;
-
- /* XXX: IPCOMP spi is 16-bits;
- * See kernel's net/xfrm/xfrm_user(verify_userspi_info).
- */
- if (req.xspi.info.id.proto == IPPROTO_COMP)
- req.xspi.max = 0xffff;
- }
-
- if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
- exit(1);
-
- if (req.xspi.info.family == AF_UNSPEC)
- req.xspi.info.family = AF_INET;
-
-
- if (rtnl_talk(&rth, &req.n, 0, 0, res_n, NULL, NULL) < 0)
- exit(2);
-
- if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) {
- fprintf(stderr, "An error :-)\n");
- exit(1);
- }
-
- rtnl_close(&rth);
-
- return 0;
-}
-
-static int xfrm_state_filter_match(struct xfrm_usersa_info *xsinfo)
-{
- if (!filter.use)
- return 1;
-
- if (filter.id_src_mask)
- if (xfrm_addr_match(&xsinfo->saddr, &filter.xsinfo.saddr,
- filter.id_src_mask))
- return 0;
- if (filter.id_dst_mask)
- if (xfrm_addr_match(&xsinfo->id.daddr, &filter.xsinfo.id.daddr,
- filter.id_dst_mask))
- return 0;
- if ((xsinfo->id.proto^filter.xsinfo.id.proto)&filter.id_proto_mask)
- return 0;
- if ((xsinfo->id.spi^filter.xsinfo.id.spi)&filter.id_spi_mask)
- return 0;
- if ((xsinfo->mode^filter.xsinfo.mode)&filter.mode_mask)
- return 0;
- if ((xsinfo->reqid^filter.xsinfo.reqid)&filter.reqid_mask)
- return 0;
- if (filter.state_flags_mask)
- if ((xsinfo->flags & filter.xsinfo.flags) == 0)
- return 0;
-
- return 1;
-}
-
-int xfrm_state_print(const struct sockaddr_nl *who, struct nlmsghdr *n,
- void *arg)
-{
- FILE *fp = (FILE*)arg;
- struct rtattr * tb[XFRMA_MAX+1];
- struct rtattr * rta;
- struct xfrm_usersa_info *xsinfo = NULL;
- struct xfrm_user_expire *xexp = NULL;
- struct xfrm_usersa_id *xsid = NULL;
- int len = n->nlmsg_len;
-
- if (n->nlmsg_type != XFRM_MSG_NEWSA &&
- n->nlmsg_type != XFRM_MSG_DELSA &&
- n->nlmsg_type != XFRM_MSG_UPDSA &&
- n->nlmsg_type != XFRM_MSG_EXPIRE) {
- fprintf(stderr, "Not a state: %08x %08x %08x\n",
- n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
- return 0;
- }
-
- if (n->nlmsg_type == XFRM_MSG_DELSA) {
- /* Dont blame me for this .. Herbert made me do it */
- xsid = NLMSG_DATA(n);
- len -= NLMSG_LENGTH(sizeof(*xsid));
- } else if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
- xexp = NLMSG_DATA(n);
- xsinfo = &xexp->state;
- len -= NLMSG_LENGTH(sizeof(*xexp));
- } else {
- xexp = NULL;
- xsinfo = NLMSG_DATA(n);
- len -= NLMSG_LENGTH(sizeof(*xsinfo));
- }
-
- if (len < 0) {
- fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
- return -1;
- }
-
- if (xsinfo && !xfrm_state_filter_match(xsinfo))
- return 0;
-
- if (n->nlmsg_type == XFRM_MSG_DELSA)
- fprintf(fp, "Deleted ");
- else if (n->nlmsg_type == XFRM_MSG_UPDSA)
- fprintf(fp, "Updated ");
- else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
- fprintf(fp, "Expired ");
-
- if (n->nlmsg_type == XFRM_MSG_DELSA)
- rta = XFRMSID_RTA(xsid);
- else if (n->nlmsg_type == XFRM_MSG_EXPIRE)
- rta = XFRMEXP_RTA(xexp);
- else
- rta = XFRMS_RTA(xsinfo);
-
- parse_rtattr(tb, XFRMA_MAX, rta, len);
-
- if (n->nlmsg_type == XFRM_MSG_DELSA) {
- //xfrm_policy_id_print();
-
- if (!tb[XFRMA_SA]) {
- fprintf(stderr, "Buggy XFRM_MSG_DELSA: no XFRMA_SA\n");
- return -1;
- }
- if (RTA_PAYLOAD(tb[XFRMA_SA]) < sizeof(*xsinfo)) {
- fprintf(stderr, "Buggy XFRM_MSG_DELPOLICY: too short XFRMA_POLICY len\n");
- return -1;
- }
- xsinfo = (struct xfrm_usersa_info *)RTA_DATA(tb[XFRMA_SA]);
- }
-
- xfrm_state_info_print(xsinfo, tb, fp, NULL, NULL);
-
- if (n->nlmsg_type == XFRM_MSG_EXPIRE) {
- fprintf(fp, "\t");
- fprintf(fp, "hard %u", xexp->hard);
- fprintf(fp, "%s", _SL_);
- }
-
- if (oneline)
- fprintf(fp, "\n");
- fflush(fp);
-
- return 0;
-}
-
-static int xfrm_state_get_or_delete(int argc, char **argv, int delete)
-{
- struct rtnl_handle rth;
- struct {
- struct nlmsghdr n;
- struct xfrm_usersa_id xsid;
- } req;
- struct xfrm_id id;
- char *idp = NULL;
-
- memset(&req, 0, sizeof(req));
-
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsid));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- req.n.nlmsg_type = delete ? XFRM_MSG_DELSA : XFRM_MSG_GETSA;
- req.xsid.family = preferred_family;
-
- while (argc > 0) {
- /*
- * XXX: Source address is not used and ignore it to follow
- * XXX: a manner of setkey e.g. in the case of deleting/getting
- * XXX: message of IPsec SA.
- */
- xfrm_address_t ignore_saddr;
-
- if (idp)
- invarg("unknown", *argv);
- idp = *argv;
-
- /* ID */
- memset(&id, 0, sizeof(id));
- xfrm_id_parse(&ignore_saddr, &id, &req.xsid.family, 0,
- &argc, &argv);
-
- memcpy(&req.xsid.daddr, &id.daddr, sizeof(req.xsid.daddr));
- req.xsid.spi = id.spi;
- req.xsid.proto = id.proto;
-
- argc--; argv++;
- }
-
- if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
- exit(1);
-
- if (req.xsid.family == AF_UNSPEC)
- req.xsid.family = AF_INET;
-
- if (delete) {
- if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
- exit(2);
- } else {
- char buf[NLMSG_BUF_SIZE];
- struct nlmsghdr *res_n = (struct nlmsghdr *)buf;
-
- memset(buf, 0, sizeof(buf));
-
- if (rtnl_talk(&rth, &req.n, 0, 0, res_n, NULL, NULL) < 0)
- exit(2);
-
- if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) {
- fprintf(stderr, "An error :-)\n");
- exit(1);
- }
- }
-
- rtnl_close(&rth);
-
- return 0;
-}
-
-/*
- * With an existing state of nlmsg, make new nlmsg for deleting the state
- * and store it to buffer.
- */
-static int xfrm_state_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_usersa_info *xsinfo = NLMSG_DATA(n);
- int len = n->nlmsg_len;
- struct nlmsghdr *new_n;
- struct xfrm_usersa_id *xsid;
-
- if (n->nlmsg_type != XFRM_MSG_NEWSA) {
- fprintf(stderr, "Not a state: %08x %08x %08x\n",
- n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
- return 0;
- }
-
- len -= NLMSG_LENGTH(sizeof(*xsinfo));
- if (len < 0) {
- fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
- return -1;
- }
-
- if (!xfrm_state_filter_match(xsinfo))
- return 0;
-
- if (xb->offset > xb->size) {
- fprintf(stderr, "State buffer overflow\n");
- return -1;
- }
-
- new_n = (struct nlmsghdr *)(xb->buf + xb->offset);
- new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xsid));
- new_n->nlmsg_flags = NLM_F_REQUEST;
- new_n->nlmsg_type = XFRM_MSG_DELSA;
- new_n->nlmsg_seq = ++rth->seq;
-
- xsid = NLMSG_DATA(new_n);
- xsid->family = xsinfo->family;
- memcpy(&xsid->daddr, &xsinfo->id.daddr, sizeof(xsid->daddr));
- xsid->spi = xsinfo->id.spi;
- xsid->proto = xsinfo->id.proto;
-
- xb->offset += new_n->nlmsg_len;
- xb->nlmsg_count ++;
-
- return 0;
-}
-
-static int xfrm_state_list_or_deleteall(int argc, char **argv, int deleteall)
-{
- char *idp = NULL;
- struct rtnl_handle rth;
-
- if(argc > 0)
- filter.use = 1;
- filter.xsinfo.family = preferred_family;
-
- while (argc > 0) {
- if (strcmp(*argv, "mode") == 0) {
- NEXT_ARG();
- xfrm_mode_parse(&filter.xsinfo.mode, &argc, &argv);
-
- filter.mode_mask = XFRM_FILTER_MASK_FULL;
-
- } else if (strcmp(*argv, "reqid") == 0) {
- NEXT_ARG();
- xfrm_reqid_parse(&filter.xsinfo.reqid, &argc, &argv);
-
- filter.reqid_mask = XFRM_FILTER_MASK_FULL;
-
- } else if (strcmp(*argv, "flag") == 0) {
- NEXT_ARG();
- xfrm_state_flag_parse(&filter.xsinfo.flags, &argc, &argv);
-
- filter.state_flags_mask = XFRM_FILTER_MASK_FULL;
-
- } else {
- if (idp)
- invarg("unknown", *argv);
- idp = *argv;
-
- /* ID */
- xfrm_id_parse(&filter.xsinfo.saddr, &filter.xsinfo.id,
- &filter.xsinfo.family, 1, &argc, &argv);
- if (preferred_family == AF_UNSPEC)
- preferred_family = filter.xsinfo.family;
- }
- argc--; argv++;
- }
-
- if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
- exit(1);
-
- if (deleteall) {
- struct xfrm_buffer xb;
- char buf[NLMSG_DELETEALL_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, "Delete-all round = %d\n", i);
-
- if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) {
- perror("Cannot send dump request");
- exit(1);
- }
-
- if (rtnl_dump_filter(&rth, xfrm_state_keep, &xb, NULL, NULL) < 0) {
- fprintf(stderr, "Delete-all terminated\n");
- exit(1);
- }
- if (xb.nlmsg_count == 0) {
- if (show_stats > 1)
- fprintf(stderr, "Delete-all completed\n");
- break;
- }
-
- if (rtnl_send(&rth, xb.buf, xb.offset) < 0) {
- perror("Failed to send delete-all request\n");
- exit(1);
- }
- if (show_stats > 1)
- fprintf(stderr, "Delete-all nlmsg count = %d\n", xb.nlmsg_count);
-
- xb.offset = 0;
- xb.nlmsg_count = 0;
- }
-
- } else {
- if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) {
- perror("Cannot send dump request");
- exit(1);
- }
-
- if (rtnl_dump_filter(&rth, xfrm_state_print, stdout, NULL, NULL) < 0) {
- fprintf(stderr, "Dump terminated\n");
- exit(1);
- }
- }
-
- rtnl_close(&rth);
-
- exit(0);
-}
-
-static int xfrm_state_flush(int argc, char **argv)
-{
- struct rtnl_handle rth;
- struct {
- struct nlmsghdr n;
- struct xfrm_usersa_flush xsf;
- } req;
- char *protop = NULL;
-
- memset(&req, 0, sizeof(req));
-
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsf));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- req.n.nlmsg_type = XFRM_MSG_FLUSHSA;
- req.xsf.proto = IPSEC_PROTO_ANY;
-
- while (argc > 0) {
- if (strcmp(*argv, "proto") == 0) {
- int ret;
-
- if (protop)
- duparg("proto", *argv);
- protop = *argv;
-
- NEXT_ARG();
-
- ret = xfrm_xfrmproto_getbyname(*argv);
- if (ret < 0)
- invarg("\"XFRM_PROTO\" is invalid", *argv);
-
- req.xsf.proto = (__u8)ret;
- } else
- invarg("unknown", *argv);
-
- argc--; argv++;
- }
-
- if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0)
- exit(1);
-
- if (show_stats > 1)
- fprintf(stderr, "Flush state proto=%s\n",
- (req.xsf.proto == IPSEC_PROTO_ANY) ? "any" :
- strxf_xfrmproto(req.xsf.proto));
-
- if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
- exit(2);
-
- rtnl_close(&rth);
-
- return 0;
-}
-
-int do_xfrm_state(int argc, char **argv)
-{
- if (argc < 1)
- return xfrm_state_list_or_deleteall(0, NULL, 0);
-
- if (matches(*argv, "add") == 0)
- return xfrm_state_modify(XFRM_MSG_NEWSA, 0,
- argc-1, argv+1);
- if (matches(*argv, "update") == 0)
- return xfrm_state_modify(XFRM_MSG_UPDSA, 0,
- argc-1, argv+1);
- if (matches(*argv, "allocspi") == 0)
- return xfrm_state_allocspi(argc-1, argv+1);
- if (matches(*argv, "delete") == 0)
- return xfrm_state_get_or_delete(argc-1, argv+1, 1);
- if (matches(*argv, "deleteall") == 0 || matches(*argv, "delall") == 0)
- return xfrm_state_list_or_deleteall(argc-1, argv+1, 1);
- if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
- || matches(*argv, "lst") == 0)
- return xfrm_state_list_or_deleteall(argc-1, argv+1, 0);
- if (matches(*argv, "get") == 0)
- return xfrm_state_get_or_delete(argc-1, argv+1, 0);
- if (matches(*argv, "flush") == 0)
- return xfrm_state_flush(argc-1, argv+1);
- if (matches(*argv, "help") == 0)
- usage();
- fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv);
- exit(-1);
-}
git://git.onelab.eu / iproute2.git / blobdiff